[go: up one dir, main page]

EP3272918B1 - Shed forming machine and loom including such a machine - Google Patents

Shed forming machine and loom including such a machine Download PDF

Info

Publication number
EP3272918B1
EP3272918B1 EP17182512.8A EP17182512A EP3272918B1 EP 3272918 B1 EP3272918 B1 EP 3272918B1 EP 17182512 A EP17182512 A EP 17182512A EP 3272918 B1 EP3272918 B1 EP 3272918B1
Authority
EP
European Patent Office
Prior art keywords
seal
frame
casing
internal
shed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17182512.8A
Other languages
German (de)
French (fr)
Other versions
EP3272918A1 (en
Inventor
Claude SERENA
François POLLET
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Staubli Faverges SCA
Original Assignee
Staubli Faverges SCA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP3272918A1 publication Critical patent/EP3272918A1/en
Application granted granted Critical
Publication of EP3272918B1 publication Critical patent/EP3272918B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D03C1/16—Arrangements of dobby in relation to loom
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C5/00—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/26—Travelling-wave-shed looms
    • D03D47/262—Shedding, weft insertion or beat-up mechanisms
    • D03D47/267—Shedding mechanisms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/18—Automatic stop motions
    • D03D51/44—Automatic stop motions acting on defective operation of loom mechanisms
    • D03D51/46—Automatic stop motions acting on defective operation of loom mechanisms of shedding mechanisms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D03C1/146—Independent drive motor
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for
    • D03C13/02—Shedding mechanisms not otherwise provided for with independent drive motors
    • D03C13/025—Shedding mechanisms not otherwise provided for with independent drive motors with independent frame drives
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C5/00—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices
    • D03C5/02—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices operated by rotating cams
    • D03C5/04—Construction or shape of cams

Definitions

  • the present invention relates to a dobby-type or cam-type shedding machine for a loom and a loom comprising such a shedding machine.
  • the oil contained in the crowd-forming machine is used to lubricate rolling joints supporting the various mechanical connections of the machine, but leaks towards the machine. 'outside must be excluded, to avoid dirtying the fabric being manufactured on the craft. The high speed movement of the levers is likely to produce oil splashes.
  • the invention intends to remedy by proposing a new machine for forming the crowd whose sealing against external pollution and oil contained in the interior of the machine is improved.
  • the hood frame is in contact, via at least one seal, at two respectively external and internal sealing barriers distant from each other, the two sealing barriers each extending over the entire periphery of the hood except at the outlet opening.
  • the invention also relates to a loom which comprises a shedding machine as mentioned above.
  • the crowd forming machine 2 shown in FIGS. Figures 1 to 8 is of dobby type and comprises a drive shaft 4, intended to be rotated by drive means of a not shown loom.
  • the drive shaft 4 is supported by a frame 6 of the machine 2.
  • the machine 2 also comprises a cylindrical actuating shaft 9 visible on the figure 1 which is also supported by the frame 6 and is rotated around its own axis X9 and relative to the frame 6, from the rotation of the drive shaft 4.
  • the shaft 4 and the shaft 9 are mutually perpendicular and connected by transmission means not visible in the figures, but known per se.
  • the machine 2 also comprises output levers 14 which are rotatably mounted on a common shaft 10, independently of each other, around the longitudinal axis X10 of the shaft 10.
  • the actuating shaft 9 is parallel to the common shaft 10.
  • the levers 14 each extend in a plane P14 orthogonal to the axis X10. On the figure 1 only four levers 14 are shown.
  • the number of levers 14 mounted on the shaft 10 can be adapted according to the type of loom to which the machine 2 is integrated and the pattern of the fabric to be woven on this loom.
  • Each of the levers 14 can be selectively driven by an alternating oscillation movement about the common shaft 10 from the rotation of the shaft 9.
  • the shaft 9 is therefore an actuating shaft levers 14 through drive means mounted around the shaft 9, not visible in the figures but known EP0851045 or EP1845181 .
  • the frame 6 forms a lower support in the form of a tank.
  • the machine 2 also comprises a cover 12 removably mounted on the frame 6 so as to define therewith an internal volume V of the machine 2, in which the shafts 4, 9 and 10 and the levers driving means 14 are mounted.
  • the cover 12 is thus disposed in the upper part of the machine 2.
  • the shaft 4 is partially mounted in the volume V since it projects outside the frame 6, as visible in FIG. figure 1 .
  • Two plates 17 for supporting the shaft 9 and the shaft 10 and a cross member 15 integral with the frame 6 and a modulator 13 interposed between the drive shaft 4 and the actuating shaft 9 are also installed in volume V.
  • the machine 2 comprises lubricating means, for example an oil bath in the tank of the frame 6 feeding an oil circuit, mechanical elements arranged within the volume V, in particular the bearings for guiding the shafts 4, 9 and 10. Oil circulates in the interior volume V.
  • lubricating means for example an oil bath in the tank of the frame 6 feeding an oil circuit, mechanical elements arranged within the volume V, in particular the bearings for guiding the shafts 4, 9 and 10. Oil circulates in the interior volume V.
  • the cover 12 is preferably made of injected plastic, and has a wall 126 which covers the entire frame 6 and the internal elements of the machine 2, including the levers 14, and other elements whose characteristics will not be detailed below, such as the modulator 13 or a selective drive device levers.
  • the cover 12 comprises an opening 120 for the passage of the levers 14 from the internal volume V towards the outside of the machine 2, for the connection of each lever 14 to a not shown linkage of motion transmission to an also not shown frame of the trade weaving machine, which is shown in the figures only by its machine 2.
  • the levers 14 extend outwardly of the machine 2 and are animated, during weaving, an alternating oscillation movement around the common tree 10.
  • the frame 6 preferably made of cast iron, has a peripheral rim 60 whose thickness varies but whose height is greater than the level of the oil bath H visible at figure 4 .
  • the frame 6 and the cover 12 delimit a reception zone Z14 of the levers 14 and a drive zone Z10 for accommodating torque transmission members between the drive shaft 4 and the shaft 9, at the level of FIG. of the drive shaft 4 and the modulator 13.
  • the zone of the levers Z14 and the drive zone Z10 form the interior volume V.
  • the zone of the levers Z14 is arranged next to the training zone Z10 along the X10 axis. In other words, zones Z10 and Z14 are adjacent.
  • the actuating shaft 9 extends in the area of the levers Z14.
  • the cover 12 and the frame are in contact with two respectively outer and outer sealing barriers B1 and B2 spaced from each other, the two sealing barriers B1 and B2 each extending over the entire periphery of the cover 12 except at the passage opening 120.
  • the two sealing barriers B1 and B2 are made by two separate seals 16 and 18, respectively housed in a first peripheral groove 20 and a second peripheral groove 22 of the cover 12, and in contact with the frame 6 and the cover 12.
  • the two sealing barriers B1 and B2 are schematically represented each by a thick line and form obstacle to the passage of oil or flock.
  • the external sealing barriers B1 and internal B2 are spaced apart in the lateral direction and are arranged in parallel with each other.
  • the first peripheral groove 20 follows the entire contour of the cover 12, including at the drive zone Z10, except at the opening 120 for the passage of the levers 14.
  • the first peripheral groove 20 is delimited between an outer edge 122 of the cover 12, and an intermediate edge 124 of the cover 12 and extends from the wall 126 of the cover 12.
  • the second internal peripheral groove 22 is adjacent to the first groove 20 and follows any the outer peripheral groove 20 to extend over the entire contour of the cover 12, including at the drive zone Z10, except at the opening 120 for passage of the levers 14.
  • the second peripheral groove 22 is formed between the intermediate edge 124 and an inner edge 128.
  • the edges 122, 124 and 128 extend in parallel and the groove 22 is disposed in parallel with the outer groove 20.
  • the inner edge 128 is positioned towards the inside of the mach. 2 relative to the intermediate edge 124 and extends over a greater distance in the interior volume V than the intermediate edge 124.
  • the intermediate edge can extend over a height of 2.5 mm, while the inner edge 128 may extend over a length of 30 mm.
  • Bridges of material 130 formed between the intermediate 124 and inner edges 128 are provided at regular intervals in the second peripheral groove 22. These material bridges 130 are shown in particular in FIGS. figures 2 and 4 .
  • the cover 12 also includes an internal rib 24 which delimits an inner shell which continuously surrounds the zone of the levers Z14, except at the outlet opening 120.
  • the internal rib 24 follows, at the rear of the zone levers Z14, on the opposite side to the passage opening of the levers 120, and the opposite side to the drive zone Z10, the inner edge 128 in parallel.
  • the internal rib 24 is at this level more prominent than the inner edge 128 and the outer edge 122.
  • the internal rib 24 also extends transversely to the inner edge 128 and to the outer edge 122 to form a delimitation between the zone of the levers Z14 and the training zone Z10, as can be seen in figure 3 .
  • the cover 12 also comprises a U-shaped groove 26 formed around the outlet opening 120, opening in the direction D12 towards the inside of the machine and housing a third seal 28.
  • At least one of the seals 16 and 18 has a hollow end.
  • seals 16 and 18 are shown in free configuration, that is to say, not mounted in the cover 12, the seals are not deformed.
  • the first seal 16 shown in FIG. figure 6 is formed of an extruded silicone profile.
  • the profile comprises a base 160 provided with lugs 160a on each side forming "fir" profiles which allow its insertion and its anchoring in the corresponding groove.
  • the base 160 extends into a hollow end 162 able to deform in contact with the frame 6.
  • the hollow end 162 is wider than the base 160, which makes it possible to position the first seal 16 in the first groove 20 with the hollow end 162 abuts against the outer edge 122 and against the intermediate edge 124 as can be seen in FIGS. figures 4 and 5 .
  • the hollow end 162 defines a closed and hollow profile having two internal centering geometries 162a and 162b adapted to cooperate with each other by complementarity of shapes according to the mounting direction D12.
  • the second seal 18 comprises a base 180 and a lug 182.
  • the base 180 comprises lugs 180a forming a "fir" profile adapted to be inserted and anchored in the groove 22.
  • the lug 182 ends with an end 184 closed profile and hollow.
  • the tab 182 is open, that is to say inclined relative to a wall of the base 180 at an angle a1 which may be for example 175 °, the angle a1 being taken out of the material of the seal 18.
  • the hollow end 184 has a face 184a inclined at an angle a2 relative to on the surface of the tab 182 in contact with the inner edge 128 when the seal 18 is in the free state.
  • the angle a2 can be between 40 and 60 °.
  • the third seal 28 has a geometry identical to that of the first seal 16 with its base anchored in the groove 26 in the assembled configuration of the seal 28.
  • the extruded profile of the seal 16 is cut to the length corresponding to the length of the outer peripheral groove 20 and the seal 16 is placed in the outer peripheral groove 20 of the cover 12.
  • the extruded profile of the gasket 18 is cut to the length corresponding to the length of the inner peripheral groove 22, the length of the gasket 18 being in fact less than the length of the gasket 16, and the gasket 18 is placed in the groove internal device 22 of the hood 12.
  • a baffle cover 7 is previously put in place around the mechanical components of the drive zone Z10.
  • the cover 12 is then placed on the frame 6, in the vertical direction, which corresponds to the mounting direction D12, then stepped screws are inserted into three housings passing through the cover 12 and into the frame 6. Some of these screws shoulders are intended to remain mounted on the cover 12 when it is subsequently removed from the frame 6.
  • the machine 2 comprises a fixing screw 30 formed by a screw body 300 and an insert 302 disposed around the screw body 300.
  • the screw body 300 and the insert 302 remain housed in the cover 12 when the cover 12 is disassembled.
  • the screw 30 is mounted in a housing 132 of the cover 12 which forms a cylindrical protuberance extending into the internal volume V.
  • the insert 302 has a cylindrical shape complementary to the internal cylindrical shape of the housing which centers the cover 6 on the screw 30, thus on the frame 6 when the screw 30 is engaged with the frame 6, which ensures optimum support of the seals 16 and 18 against the frame 6.
  • An O-ring 304 housed in an external peripheral groove of the insert 302 is interposed between the insert 302 and the housing 132 and provides radial sealing between the insert 302 and the housing 132. The radial seal between the screw 30 and the cover 12 is thus achieved.
  • An O-ring 306 housed in a groove 300a of the screw body 300 is interposed between the screw body 300 and the insert 302 and provides radial sealing between the screw body 300 and the insert 302.
  • the insert 302 is interposed between the head 300b of the screw body 300 and the 12.
  • the screw body 300 has a thread 300c engaged in a tapping 62 of the frame 6.
  • the insert 302 has a shoulder 302a which rests on an outer surface 132a of the housing 132.
  • the insert 302 is in contact with the frame 6 by its end 302b opposite to the shoulder 302a.
  • the insert 302 forms a spacer between the head of the screw body 300b and the frame 6 when the screw 30 is tightened.
  • the insert 302 thus positions the cover 12 relative to the frame in the direction D12 and centers the cover 12 relative to the frame in a lateral direction, transverse to the direction D12 cooperating with the elongated housing 132 to ensure placement and centering precise cover 12 relative to the frame 6 and optimum supports of the seals 16 and 18 against the frame 6.
  • the screw 300 is screwed into the frame 6 through an orifice 70 of the baffle cover 7.
  • An O-ring 72 placed in the insert 302, bears against the edge of the orifice 70 and provides a support and a seal between the insert 302 and the baffle cover 7 when the screw 30 is tightened.
  • the machine 2 comprises two fastening screws 32, which are inserted through the orifices 134 of the cover 12.
  • Each of the screws 32 comprises a screw body 320 having a thread 320a threaded into a thread 64 of the frame 6.
  • the screw body 320 includes a shoulder surface 320b. When the screw 32 is tightened, the shoulder surface 320b comes into contact with a surface 66 of the frame 6, which struts the screw head 320c and the frame 6.
  • the machine 2 may comprise a different number of fastening screws 32 in the region of the levers Z14.
  • the first seal 16 is pressed uniformly in the mounting direction D12 against the peripheral surface 60a forming the horizontal high end of the frame 6, this surface 60a being carried by the flange 60, so that the hollow portion 162 of the first seal 16, disposed outside the peripheral groove 20, crushes against this surface 60a and is centered with respect to the base 160 by the cooperation of geometries 162a and 162b.
  • the seal 16 is then deformed between the peripheral surface 60a and a curved cavity 124a which constitutes the end surface of the intermediate edge 124 and which matches the geometry of the hollow end 162 deformed.
  • the first seal 16 in cooperation with the cover 12 and the frame 6, forms the external sealing barrier B1 with vertical sealing contact of the first seal 16 on the frame 6 and on the cover 12.
  • the contact of the first seal 16 with the frame 6 is vertically at a flat peripheral surface without groove.
  • This external sealing barrier extends uninterruptedly over the entire periphery of the frame 6 and the cover 12, except in the vicinity of the passage opening 120 for the levers 14, to form an obstacle to the entry of fluff or any other external pollution in the tank of the frame 6.
  • the external sealing barrier B1 defines the internal volume V of the machine.
  • the inner edge 128 follows the flange 60 of the frame.
  • the hollow portion 184 of the second seal 18 comes into contact with the frame 6 and the second seal 18 is thus held in abutment in the inner peripheral groove 22, contact with the material bridges 130, which forces the deformation of its entire hollow portion 184 between the frame 6 and the lateral peripheral surface 128a of the inner edge 128, over the entire periphery of the cover 12 and the frame 6, except in the vicinity of the passage opening 120 of the levers outlet.
  • the contact of the second seal 18 with the frame 6 is at an inner lateral peripheral surface 60b of the flange 60, disposed in the vessel of the frame 6, which has a bulge, formed by a thickness greater than the thickness of the rim 60 at the surface 60a.
  • the engagement of the second seal 18 with the inner lateral peripheral surface 60b is preferably done after the first seal 16 is contacted with the peripheral surface 60a.
  • the deformation of the second seal 18 is in the lateral direction.
  • This internal sealing barrier B2 s extends uninterruptedly over the entire periphery of the frame 6 and the cover 12, except at the passage opening 120 for the levers 14 to form an obstacle at the outlet of microdroplets of oil or a mist of oil, tank frame 6 to the outside of the machine.
  • the internal sealing barrier B2 is contained in the internal volume V and is arranged in parallel and at a distance from the external sealing barrier B1 formed by the first seal 16.
  • the inner shell 24 is shifted inward with respect to the internal sealing barrier.
  • the third seal 28 is pressed vertically uniformly against plates reported on the frame 6 and the crossbar 15 fixed on the plates 17 and equivalent by screws 36, so that the hollow portion of the third seal 28, disposed out of the peripheral groove 26, crushes and centers, with respect to the base of the gasket 28, by cooperation of complementary geometries in the same manner as the first gasket 16.
  • the internal rib 24 remains at a distance from the frame 6 while following its rim 60 without any sealing or contact being formed between the internal rib 24 and the frame 6.
  • the projections of oil in the zone of levers Z14, in particular at the rear of the levers 14, on the opposite side to the passage opening of the levers 120, are contained by the inner shell formed by the internal rib 24, which forms an obstacle and acts as a deflector.
  • the oil mist generated by the machine 2 in the interior volume V rises between the internal rib 24 and the rim 60.
  • the second seal 18 forms a sealed barrier which prevents the oil mist from coming into contact with the first seal 16.
  • the first seal 16 forms a tight barrier to external pollution and in particular to the wad, which remains at a distance from the second seal 18 and therefore the oil. Any capillarity is avoided.
  • the internal and external sealing barriers are formed between the same cover 12 and the same frame 6, which simplifies the implementation and improves the positioning and deformation accuracy of the seals 16 and 18 for sealing over the entire length of the seals, or on the entire periphery of the cover 12 except in the vicinity of the opening 120.
  • the internal rib 24 provided on the periphery of the zone of the levers Z14 is integrated on the cover 12, which limits the number of covers and baffles.
  • the seals 16, 18 and 28 are each housed in a groove of the cover 12. This limits the machining to be performed in the frame 6.
  • the grooves 22 and 20 open towards the bottom of the hood 12, which limits the potential zones of oil retention. Indeed the oil that is likely to be introduced into these grooves flows to the tank of the frame 6 and can not accumulate.
  • the two seals 16 and 18 come into contact with the frame 6 respectively in the vertical direction and in the lateral direction, the deformation of the seal 16 does not cause lateral movement of the cover 12. These two seals ensure a seal between the cover 12 and the frame 6 all along the two sealing barriers.
  • the two sealing barriers are arranged in parallel to facilitate the mounting of the cover 12 and the sealing engagement of the seals 16 and 18 with the respective surfaces 60a, 124a and 60b, 128 on which they are pressed.
  • the external sealing barrier B1 and the internal sealing barrier B2 are offset in the mounting direction D12 of the cover 12 on the frame 6, with a vertical offset in the direction D12 of the order of 5 mm.
  • the fastening devices by screws centered with respect to the cover 12 during the screwing ensure a good positioning of the seals 16 and 18 forming the internal and external sealing barriers with respect to the frame 6.
  • the stepped screws 30 and 32 make it possible to check the crushing of the seals 16 and 18.
  • the cooperation of the geometries 162a and 162b of the first seal 16 promotes the proper placement of the seal 16 against the frame 6 for optimum sealing.
  • the seal 322 between the fixing screw 32 and the cover 12 prevents leakage at the attachment.
  • the outer sealing barriers B1 and B2 internal are formed by a single seal 50 and each represented by a thick line.
  • the seal 50 comprises a base 502 provided with lateral lugs 502a, forming a "fir" profile, allowing anchoring in the internal groove 22.
  • the seal 50 extends towards the outside of the machine 2 by a lip 504 which is interposed, on the one hand, between the outer edge 122 and the intermediate edge 124 and on the other hand, the horizontal surface 60a of the flange 60 of the frame 6, which ensures a tight contact in the vertical direction.
  • the lip 504 In the free state of the seal 50, the lip 504 is in a free position represented by its contour 504 '. In mounted configuration, the lip 504 is deformed between the flange 60 and the edges 122 and 124. The lip 504 makes it possible to produce the external sealing barrier B1.
  • the base 502 of the seal 50 is extended towards the bottom of the frame 6 by a tab 506 terminated by a lip 506a, the tab 506 being in contact with the inner edge 128.
  • the lip 506a In a free configuration represented by its contour 506a ', the lip 506a has a shape inclined with respect to the tab 506.
  • the lip 506a When the cover 12 is mounted on the frame 6, the lip 506a is deformed and bent against the inner lateral peripheral surface 60b, which ensures lateral sealing contact with the frame 6 and the inner edge 128 and forms the internal sealing barrier B2.
  • the shedding machine may comprise two seals, each forming one of the internal and external sealing barriers, which comprise, at their end, lips similar to those described in the figure 10 replacing the hollow ends 162 and 184.
  • a crowd forming machine 2 'operating on the principle of cam machines is shown.
  • the torque transmission receiving zone Z10 between the drive shaft 4 and the actuating shaft 9 is disposed adjacent to the zone of the levers Z14 along the axis X10 of the shaft 10, at the drive shaft 4, a conical gear mounted on the shaft 4 and a conical wheel mounted on the shaft 9, known per se.
  • Rollers carried by the levers 14 cooperate with cams 21 integral in rotation with the actuating shaft 9 for moving the levers 14 by rotation of the actuating shaft 9.
  • the actuating shaft 9 is supported by two plates 17 integral with the frame 6.
  • the actuating shaft 9 extends in the zone of the levers Z14.
  • the longitudinal axis X9 of the shaft 9 is parallel to the axis X10.
  • the rollers and cams 21 are also arranged in the zone of reception of the levers Z14.
  • the cover 12 ' has an inner shell delimited by an internal rib 24' comprising a portion 242 extending behind the zone of the levers Z14, on the opposite side to the passage opening of the levers 120 and extending through a portion 244 extending peripherally of the drive zone Z10, in parallel with the inner edge of the cover 12 delimiting the groove for the second seal 18.
  • the internal rib 24 ' is completed by a portion 246 forming a rib cross section separating the volume devolved to the area of the rollers, cams and levers Z14 and the volume of the drive zone Z10.
  • a leveling zone Z19 comprising the means of displacement of the shaft 10 relative to the plates 17 during the leveling of the levers 14.
  • the first and second seals 16, 18 are arranged at a distance and in parallel over the entire periphery of the cover 12, where they each form an internal, external, not shown, sealing barrier, except in the vicinity of the passage opening 120 .
  • both internal and external sealing barriers also extend each over the entire periphery of the cover 12 except at the opening 120, that is to say opposite this opening 120 and the distance d1, facing of the notch which adjoins the opening 120.
  • the cover 12 ' is secured to the frame 6 by two fixing screws 90 and two fixing clamps 92.
  • the screws 90 bear against the cover 12 and screw, through a projection of the outer edge 122 of the cover 12, in the frame 6, they do not pass through the internal volume V of the machine 2 '.
  • the lower end of the internal rib can be immersed, at least on certain length portions, in the oil bath at the bottom of the tank of the frame 6.
  • the seals 16, 18 and 28 may be made of an elastomeric material as an alternative to silicone.
  • the drive shaft 4 is an output shaft of the loom or motor.
  • At least one of the seals forming the sealing barriers B1 and B2, for example the seal 16 may not comprise a base inserted in a groove of the cover 12 but a base bonded to a surface
  • the two seals 16 and 18, or the seam 50, can be fixed in this manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Gasket Seals (AREA)

Description

La présente invention concerne une machine de formation de la foule, de type ratière ou mécanique à cames, pour un métier à tisser ainsi qu'un métier à tisser, comprenant une telle machine de formation de la foule.The present invention relates to a dobby-type or cam-type shedding machine for a loom and a loom comprising such a shedding machine.

Dans le domaine du tissage, il est connu d'utiliser des machines de formation de la foule qui présentent un groupe de leviers de sortie montés rotatifs autour d'un arbre commun (voir par exemple EP 2 492 381 A1 ). Les différents arbres, les leviers ainsi que les différentes liaisons mécaniques qui les relient sont supportés par un bâti de la machine et recouverts par un capot de protection amovible. Les extensions des leviers de sortie s'étendent au travers d'un évidement du capot vers l'extérieur de la machine.In the field of weaving, it is known to use machines for forming the crowd which have a group of output levers rotatably mounted around a common shaft (see for example EP 2 492 381 A1 ). The various shafts, the levers and the various mechanical connections that connect them are supported by a frame of the machine and covered by a removable protective cover. The extensions of the output levers extend through a recess of the cover to the outside of the machine.

Compte tenu des vitesses de fonctionnement de plus en plus élevées de ces machines, de l'huile contenue dans la machine de formation de la foule est utilisée pour lubrifier des articulations à roulement supportant les différentes liaisons mécanique de la machine, mais des fuites vers l'extérieur doivent être exclues, pour éviter de salir le tissu en cours de fabrication sur le métier. Le mouvement à haute vitesse des leviers est susceptible de produire des projections d'huile.In view of the increasing operating speeds of these machines, the oil contained in the crowd-forming machine is used to lubricate rolling joints supporting the various mechanical connections of the machine, but leaks towards the machine. 'outside must be excluded, to avoid dirtying the fabric being manufactured on the craft. The high speed movement of the levers is likely to produce oil splashes.

Dans les machines de formation de la foule connues, un joint d'étanchéité entre le capot et le bâti s'étend au contact de l'extrémité haute du bâti et un joint d'étanchéité s'étend autour de l'ouverture de sortie des leviers. Ces joints forment une unique barrière d'étanchéité entre l'extérieur et l'intérieur de la machine. Pour limiter les projections d'huile, des déflecteurs ou capots internes sont rapportés dans le volume intérieur de la machine autour des leviers et autour du système d'entraînement.In known shedding machines, a seal between the cover and the frame extends into contact with the top end of the frame and a seal extends around the outlet opening of the housings. levers. These joints form a single barrier between the outside and the inside of the machine. To limit oil splashes, baffles or internal covers are reported in the internal volume of the machine around the levers and around the drive system.

Cependant, dès lors que le même joint d'étanchéité doit assurer une étanchéité aux pollutions extérieures, telles que la bourre de textile, et une étanchéité à un brouillard d'huile venant de l'intérieur de la machine, il arrive que de la bourre entre en contact avec l'huile. La bourre attire alors l'huile contenue dans la cuve du bâti par capillarité, ce qui crée des fuites d'huile préjudiciables à la propreté du tissu et un manque d'huile dans la cuve altérant le fonctionnement des organes mécaniques de la machine de formation de la foule. L'étanchéité de ce type de machine de formation de la foule peut donc être améliorée.However, since the same seal must provide a seal against external pollution, such as the textile wad, and a seal to an oil mist coming from the inside of the machine, it happens that the flock comes in contact with the oil. The wad then attracts the oil contained in the tank of the frame by capillarity, which creates oil leaks detrimental to the cleanliness of the fabric and a lack of oil in the tank altering the operation of the mechanical parts of the training machine a crowd. The sealing of this type of crowd-forming machine can therefore be improved.

C'est à ces inconvénients qu'entend remédier l'invention en proposant une nouvelle machine de formation de la foule dont l'étanchéité aux pollutions extérieures et à l'huile contenue dans l'intérieur de la machine est améliorée.It is these drawbacks that the invention intends to remedy by proposing a new machine for forming the crowd whose sealing against external pollution and oil contained in the interior of the machine is improved.

A cet effet, l'invention concerne une machine de formation de la foule, de type ratière ou mécanique à cames, pour un métier à tisser, la machine comprenant :

  • des leviers de sortie animés, en cours de tissage, d'un mouvement d'oscillation alternative autour d'un arbre commun,
  • un capot avec une ouverture de sortie traversée par les leviers,
  • un bâti qui délimite, avec le capot, un volume intérieur de la machine, comprenant une zone de réception d'organes de transmission de couple entre un arbre d'entraînement et un arbre d'actionnement des leviers de sortie ainsi qu'une zone d'accueil des leviers de sortie, cette zone d'accueil étant adjacente à la zone de réception d'organes de transmission de couple et le bâti supportant l'arbre d'actionnement.
For this purpose, the invention relates to a machine for forming a crowd, dobby type or mechanical cam, for a loom, the machine comprising:
  • animated output levers, during weaving, of an alternating oscillation movement around a common tree,
  • a hood with an outlet opening through which the levers
  • a frame which delimits, with the hood, an internal volume of the machine, comprising a zone for receiving torque transmission members between a drive shaft and an output lever operating shaft, and a d reception of the output levers, this reception zone being adjacent to the zone for receiving torque transmission members and the frame supporting the actuating shaft.

Conformément à l'invention, le capot le bâti sont en contact, par l'intermédiaire d'au moins un joint d'étanchéité, au niveau de deux barrières d'étanchéité respectivement externe et interne distantes l'une de l'autre, les deux barrières d'étanchéité s'étendant chacune sur toute la périphérie du capot excepté au niveau de l'ouverture de sortie.According to the invention, the hood frame is in contact, via at least one seal, at two respectively external and internal sealing barriers distant from each other, the two sealing barriers each extending over the entire periphery of the hood except at the outlet opening.

Grâce à l'invention, tout contact entre la bourre venant de l'extérieur de la machine et le brouillard d'huile venant du volume intérieur de la machine est évité grâce aux deux barrières d'étanchéité distantes et à la chambre intermédiaire existant entre les deux barrières d'étanchéité. La sortie d'huile à l'extérieur de la machine par capillarité est donc évitée.Thanks to the invention, any contact between the wad from the outside of the machine and the oil mist coming from the interior volume of the machine is avoided thanks to the two remote sealing barriers and the intermediate chamber existing between them. two sealing barriers. The oil outlet on the outside of the machine by capillarity is thus avoided.

Selon des aspects avantageux mais non obligatoires de l'invention, une telle machine peut incorporer une ou plusieurs des caractéristiques suivantes, prises selon toute combinaison techniquement admissible :

  • Les barrières d'étanchéité interne et externe sont disposées en parallèle l'une de l'autre.
  • Un premier joint d'étanchéité forme la barrière d'étanchéité externe et un deuxième joint d'étanchéité forme la barrière d'étanchéité interne.
  • Au moins un joint d'étanchéité des barrières d'étanchéité externe et interne présente une extrémité creuse apte à être déformée entre le capot et le bâti.
  • L'extrémité creuse définit un profil fermé présentant deux géométries de centrage internes adaptées pour coopérer l'une avec l'autre par complémentarité de formes lorsque l'extrémité creuse est déformée entre le capot et le bâti.
  • Au moins un ou chaque joint d'étanchéité des barrières d'étanchéité externe et interne comprend une base logée dans une rainure périphérique du capot.
  • La ou les rainures débouchent selon une direction de montage du capot sur le bâti.
  • La barrière d'étanchéité externe est réalisée entre une surface périphérique d'extrémité horizontale d'un rebord du bâti et une surface d'extrémité périphérique d'un bord du capot.
  • La barrière d'étanchéité interne est réalisée entre une surface périphérique latérale d'un rebord du bâti et une surface latérale périphérique d'un bord interne du capot.
  • Le joint d'étanchéité formant la barrière d'étanchéité interne comprend une base insérée dans une rainure du capot et une patte s'étendant à partir de la base jusqu'à une extrémité de cette patte en contact avec le bâti, la surface de cette patte plaquée contre le bord interne du capot en configuration montée formant, à l'état libre du joint d'étanchéité, un angle avec la base strictement inférieur à 180°, de préférence égal à 175°.
  • La barrière d'étanchéité externe et la barrière d'étanchéité interne (B2) sont décalées selon une direction de montage du capot sur le bâti.- Le capot comporte une nervure interne, formant une coque décalée vers l'intérieur par rapport à la barrière d'étanchéité interne, cette nervure interne s'étendant au moins à l'arrière de la zone d'accueil des leviers dans le bâti et entre la zone d'accueil des leviers et la zone d'entrainement.
  • Le capot est fixé sur le bâti par des vis épaulées, un joint d'étanchéité étant interposé entre chaque vis épaulée et le capot.
  • Au moins une des vis épaulées est insérée dans un orifice du capot dont les bords présentent un chanfrein, et alors que le joint assurant l'étanchéité entre cette vis épaulée et le capot est pressé entre une tête de cette vis épaulée et ledit chanfrein.
  • Au moins une des vis épaulées comprend un insert entourant un corps de la vis, l'insert étant intercalé entre une tête de la vis et le capot ainsi qu'entre la tête de la vis et le bâti lorsque le corps de la vis est en prise dans le bâti, et alors qu'un joint d'étanchéité est interposé entre le corps de la vis et l'insert.
According to advantageous but non-obligatory aspects of the invention, such a machine can incorporate one or more of the following features, taken in any technically permissible combination:
  • The internal and external sealing barriers are arranged in parallel with each other.
  • A first seal forms the outer seal barrier and a second seal forms the inner seal barrier.
  • At least one seal of the outer and inner sealing barriers has a hollow end adapted to be deformed between the cover and the frame.
  • The hollow end defines a closed profile having two internal centering geometries adapted to cooperate with one another by complementarity of shapes when the hollow end is deformed between the cover and the frame.
  • At least one or each seal of the outer and inner seal barriers comprises a base housed in a peripheral groove of the cover.
  • The groove or grooves open in a mounting direction of the hood on the frame.
  • The outer sealing barrier is formed between a horizontal end peripheral surface of a rim of the frame and a peripheral end surface of an edge of the cap.
  • The internal sealing barrier is formed between a peripheral peripheral surface of a rim of the frame and a peripheral side surface of an inner edge of the hood.
  • The seal forming the internal sealing barrier comprises a base inserted into a groove of the cover and a tab extending from the base to an end of this tab in contact with the frame, the surface of which lug pressed against the inner edge of the hood mounted configuration forming, in the free state of the seal, an angle with the base strictly less than 180 °, preferably equal to 175 °.
  • The external sealing barrier and the internal sealing barrier (B2) are offset in a direction of mounting the hood on the frame. The cover has an internal rib, forming a shell offset inward with respect to the barrier. internal sealing, this internal rib extending at least at the rear of the receiving area of the levers in the frame and between the reception area of the levers and the training zone.
  • The cover is fixed on the frame by shouldered screws, a seal being interposed between each shoulder screw and the cover.
  • At least one of the stepped screws is inserted into a hole of the cover whose edges have a chamfer, and while the seal ensuring the seal between said stepped screw and the cover is pressed between a head of said stepped screw and said chamfer.
  • At least one of the stepped screws comprises an insert surrounding a body of the screw, the insert being interposed between a head of the screw and the cover and between the head of the screw and the frame when the body of the screw is in taken in the frame, and while a seal is interposed between the body of the screw and the insert.

L'invention concerne également un métier à tisser qui comprend une machine de formation de la foule telle que mentionnée ci-dessus.The invention also relates to a loom which comprises a shedding machine as mentioned above.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui va suivre, d'une machine de formation de la foule conforme à son principe, faite à titre d'exemple non limitatif en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue en perspective partiellement éclatée d'une machine de formation de la foule conforme à un premier mode de réalisation de l'invention ;
  • la figure 2 est une vue à plus grande échelle du détail II à la figure 1 ;
  • la figure 3 est une vue de dessous d'un capot de la machine de la figure 1 ;
  • la figure 4 est une coupe d'une portion d'un côté de la machine de la figure 1 ;
  • la figure 5 est une vue à plus grand échelle du détail D à la figure 4 ;
  • la figure 6 est une coupe transversale d'un premier joint de la machine de la figure 1, en configuration libre ;
  • la figure 7 est une coupe transversale d'un second joint de la machine de la figure 1, en configuration libre ;
  • la figure 8 est une coupe représentant une fixation par vis de la machine de la figure 1 ;
  • la figure 9 est une coupe représentant une seconde fixation par vis de la machine de la figure 1 ;
  • la figure 10 est une coupe transversale d'un côté d'une machine de formation de la foule conforme à un deuxième mode de réalisation de l'invention ;
  • la figure 11 est une vue en perspective partiellement éclatée d'une machine de formation de la foule conforme à un troisième mode de réalisation de l'invention ;
  • la figure 12 est une vue à plus grande échelle du détail XII à la figure 11 ;
  • la figure 13 est une vue en perspective de dessous d'un capot de la machine de la figure 11 ;
  • la figure 14 est une vue à plus grande échelle du détail XIV à la figure 12.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the description which follows, a machine for forming the crowd in accordance with its principle, made by way of non-limiting example. with reference to the accompanying drawings in which:
  • the figure 1 is a partially exploded perspective view of a shedding machine according to a first embodiment of the invention;
  • the figure 2 is a larger-scale view of detail II to the figure 1 ;
  • the figure 3 is a bottom view of a hood of the machine the figure 1 ;
  • the figure 4 is a section of a portion of one side of the machine the figure 1 ;
  • the figure 5 is a larger-scale view of detail D to the figure 4 ;
  • the figure 6 is a cross-section of a first machine seal of the figure 1 , in free configuration;
  • the figure 7 is a cross-section of a second machine seal of the figure 1 , in free configuration;
  • the figure 8 is a section showing a screw fixing of the machine of the figure 1 ;
  • the figure 9 is a section representing a second screw fastening of the machine of the figure 1 ;
  • the figure 10 is a cross-section on one side of a shedding machine according to a second embodiment of the invention;
  • the figure 11 is a partially exploded perspective view of a shedding machine according to a third embodiment of the invention;
  • the figure 12 is a larger-scale view of detail XII at the figure 11 ;
  • the figure 13 is a perspective view from below of a hood of the machine the figure 11 ;
  • the figure 14 is a larger-scale view of detail XIV at the figure 12 .

La machine 2 de formation de la foule représentée aux figures 1 à 8 est de type ratière et comprend un arbre d'entraînement 4, destiné à être entraîné en rotation par des moyens d'entraînement d'un métier à tisser non représenté. L'arbre d'entraînement 4 est supporté par un bâti 6 de la machine 2. La machine 2 comprend également un arbre d'actionnement 9 cylindrique visible sur la figure 1, qui est également supporté par le bâti 6 et est entraîné en rotation, autour de son propre axe X9 et par rapport au bâti 6, à partir de la rotation de l'arbre d'entraînement 4. L'arbre 4 et l'arbre 9 sont perpendiculaires entre eux et reliés par des moyens de transmission non visibles sur les figures, mais connus en soi.The crowd forming machine 2 shown in FIGS. Figures 1 to 8 is of dobby type and comprises a drive shaft 4, intended to be rotated by drive means of a not shown loom. The drive shaft 4 is supported by a frame 6 of the machine 2. The machine 2 also comprises a cylindrical actuating shaft 9 visible on the figure 1 which is also supported by the frame 6 and is rotated around its own axis X9 and relative to the frame 6, from the rotation of the drive shaft 4. The shaft 4 and the shaft 9 are mutually perpendicular and connected by transmission means not visible in the figures, but known per se.

La machine 2 comprend également des leviers de sortie 14 qui sont montés rotatifs sur un arbre commun 10, indépendamment les uns des autres, autour de l'axe longitudinal X10 de l'arbre 10. L'arbre d'actionnement 9 est parallèle à l'arbre commun 10. Les leviers 14 s'étendent chacun dans un plan P14 orthogonal à l'axe X10. Sur la figure 1, seuls quatre leviers 14 sont représentés. Le nombre de leviers 14 montés sur l'arbre 10 peut être adapté en fonction du type de métier à tisser auquel la machine 2 est intégrée et du motif du tissu à tisser sur ce métier.The machine 2 also comprises output levers 14 which are rotatably mounted on a common shaft 10, independently of each other, around the longitudinal axis X10 of the shaft 10. The actuating shaft 9 is parallel to the common shaft 10. The levers 14 each extend in a plane P14 orthogonal to the axis X10. On the figure 1 only four levers 14 are shown. The number of levers 14 mounted on the shaft 10 can be adapted according to the type of loom to which the machine 2 is integrated and the pattern of the fabric to be woven on this loom.

Chacun des leviers 14 peut être sélectivement animé d'un mouvement d'oscillation alternative autour de l'arbre commun 10 à partir de la rotation de l'arbre 9. L'arbre 9 est donc un arbre d'actionnement des leviers 14 à travers des moyens d'entraînement montés autour de l'arbre 9, non visibles sur les figures mais connus de EP0851045 ou EP1845181 .Each of the levers 14 can be selectively driven by an alternating oscillation movement about the common shaft 10 from the rotation of the shaft 9. The shaft 9 is therefore an actuating shaft levers 14 through drive means mounted around the shaft 9, not visible in the figures but known EP0851045 or EP1845181 .

Par commodité, la présente description est orientée selon la figure 1, les termes « haut » et « supérieur » désignant une direction orientée vers le haut de la figure 1, les termes « bas » et « inférieur » désignant une direction opposée. Le terme « axial » désigne quant à lui, sauf mention contraire, une orientation parallèle à l'axe X10. On définit une direction latérale comme étant une direction transversale à une direction de montage D12 du capot 12 sur le bâti 6, laquelle est sensiblement perpendiculaire aux arbres 4 et 10. Par « interne », on entend un élément de la machine décalé vers l'intérieur de la machine. Par « externe », un élément de la machine décalé vers l'extérieur de la machine.For convenience, the present description is oriented according to the figure 1 , the terms "up" and "upper" denoting a direction facing the top of the figure 1 the terms "low" and "lower" denoting an opposite direction. The term "axial" designates meanwhile, unless otherwise stated, an orientation parallel to the axis X10. A lateral direction is defined as being a direction transverse to a mounting direction D12 of the cover 12 on the frame 6, which is substantially perpendicular to the shafts 4 and 10. By "internal" is meant an element of the machine shifted towards the inside the machine. By "external", an element of the machine shifted to the outside of the machine.

Le bâti 6 forme un support inférieur en forme de cuve. La machine 2 comprend également un capot 12 monté de manière amovible sur le bâti 6 de façon à délimiter avec ce dernier un volume intérieur V de la machine 2, au sein duquel les arbres 4, 9 et 10 et les moyens d'entraînement des leviers 14 sont montés. Le capot 12 est ainsi disposé en partie supérieure de la machine 2. En pratique l'arbre 4 est monté partiellement dans le volume V puisqu'il dépasse à l'extérieur du bâti 6, comme visible à la figure 1. Deux platines 17 de support de l'arbre 9 et de l'arbre 10 et une traverse 15 solidaires du bâti 6 ainsi qu'un modulateur 13 interposé entre l'arbre d'entrainement 4 et l'arbre d'actionnement 9 sont également installés dans le volume V.The frame 6 forms a lower support in the form of a tank. The machine 2 also comprises a cover 12 removably mounted on the frame 6 so as to define therewith an internal volume V of the machine 2, in which the shafts 4, 9 and 10 and the levers driving means 14 are mounted. The cover 12 is thus disposed in the upper part of the machine 2. In practice the shaft 4 is partially mounted in the volume V since it projects outside the frame 6, as visible in FIG. figure 1 . Two plates 17 for supporting the shaft 9 and the shaft 10 and a cross member 15 integral with the frame 6 and a modulator 13 interposed between the drive shaft 4 and the actuating shaft 9 are also installed in volume V.

La machine 2 comprend des moyens de lubrification, par exemple un bain d'huile dans la cuve du bâti 6 alimentant un circuit d'huile, des éléments mécaniques disposés au sein du volume V, notamment les paliers de guidage des arbres 4, 9 et 10. De l'huile circule ainsi dans le volume intérieur V.The machine 2 comprises lubricating means, for example an oil bath in the tank of the frame 6 feeding an oil circuit, mechanical elements arranged within the volume V, in particular the bearings for guiding the shafts 4, 9 and 10. Oil circulates in the interior volume V.

Le capot 12 est de préférence réalisé en matière plastique injectée, et comporte une paroi 126 qui vient recouvrir tout le bâti 6 et les éléments internes de la machine 2, notamment les leviers 14, ainsi que d'autres éléments dont les caractéristiques ne seront pas détaillées ci-après, tels que le modulateur 13 ou un dispositif d'entraînement sélectif des leviers. Le capot 12 comprend une ouverture 120 de passage des leviers 14 depuis le volume intérieur V vers l'extérieur de la machine 2, pour la connexion de chaque levier 14 à une bielle non représentée de transmission de mouvement à un cadre également non représenté du métier à tisser, lequel est représenté sur les figures uniquement par sa machine 2. Les leviers 14 s'étendent vers l'extérieur de la machine 2 et sont animés, en cours de tissage, d'un mouvement d'oscillation alternative autour de l'arbre commun 10.The cover 12 is preferably made of injected plastic, and has a wall 126 which covers the entire frame 6 and the internal elements of the machine 2, including the levers 14, and other elements whose characteristics will not be detailed below, such as the modulator 13 or a selective drive device levers. The cover 12 comprises an opening 120 for the passage of the levers 14 from the internal volume V towards the outside of the machine 2, for the connection of each lever 14 to a not shown linkage of motion transmission to an also not shown frame of the trade weaving machine, which is shown in the figures only by its machine 2. The levers 14 extend outwardly of the machine 2 and are animated, during weaving, an alternating oscillation movement around the common tree 10.

Le bâti 6, de préférence réalisé en fonte, a un rebord 60 périphérique dont l'épaisseur varie mais dont la hauteur est supérieure au niveau du bain d'huile H visible à la figure 4. Le bâti 6 et le capot 12 délimitent une zone d'accueil Z14 des leviers 14 et une zone d'entraînement Z10 d'accueil d'organes de transmission de couple entre l'arbre d'entraînement 4 et l'arbre 9, au niveau de l'arbre d'entraînement 4 et du modulateur 13. La zone des leviers Z14 et la zone d'entraînement Z10 forment le volume intérieur V. La zone des leviers Z14 est disposée à côté de la zone d'entrainement Z10 le long de l'axe X10. En d'autres termes, les zones Z10 et Z14 sont adjacentes. L'arbre d'actionnement 9 s'étend dans la zone des leviers Z14.The frame 6, preferably made of cast iron, has a peripheral rim 60 whose thickness varies but whose height is greater than the level of the oil bath H visible at figure 4 . The frame 6 and the cover 12 delimit a reception zone Z14 of the levers 14 and a drive zone Z10 for accommodating torque transmission members between the drive shaft 4 and the shaft 9, at the level of FIG. of the drive shaft 4 and the modulator 13. The zone of the levers Z14 and the drive zone Z10 form the interior volume V. The zone of the levers Z14 is arranged next to the training zone Z10 along the X10 axis. In other words, zones Z10 and Z14 are adjacent. The actuating shaft 9 extends in the area of the levers Z14.

Le capot 12 et le bâti sont en contact au niveau de deux barrières d'étanchéité B1 et B2 respectivement externe et interne distantes l'une de l'autre, les deux barrières d'étanchéité B1 et B2 s'étendant chacune sur toute la périphérie du capot 12 excepté au niveau de l'ouverture de passage 120. Les deux barrières d'étanchéité B1 et B2 sont réalisées par deux joints d'étanchéité 16 et 18 distincts, respectivement logés dans une première rainure périphérique 20 et une deuxième rainure périphérique 22 du capot 12, et en contact avec le bâti 6 et le capot 12. A la figure 5, les deux barrières d'étanchéité B1 et B2 sont schématiquement représentées chacune par un trait épais et forment obstacle au passage d'huile ou de bourre. Les barrières d'étanchéité externe B1 et interne B2 sont distantes selon la direction latérale et sont disposées en parallèle l'une de l'autre. Autrement dit, une distance sensiblement constante sépare les deux barrières d'étanchéité interne et externe tout le long des barrières d'étanchéité. Cela provient des géométries constantes du bâti 6, du capot 12 et des joints 16 et 18 le long des barrières d'étanchéité B1 et B2. La première rainure périphérique 20, dite externe, suit tout le contour du capot 12, y compris au niveau de la zone d'entraînement Z10, excepté au niveau de l'ouverture 120 de passage des leviers 14. La première rainure périphérique 20 est délimitée entre un bord externe 122 du capot 12, et un bord intermédiaire 124 du capot 12 et s'étend à partir de la paroi 126 du capot 12. La deuxième rainure périphérique, dite interne 22, est adjacente à la première rainure 20 et suit toute la rainure périphérique externe 20 pour s'étendre sur tout le contour du capot 12, y compris au niveau de la zone d'entraînement Z10, excepté au niveau de l'ouverture 120 de passage des leviers 14. La deuxième rainure périphérique 22 est formée entre le bord intermédiaire 124 et un bord interne 128. Les bords 122, 124 et 128 s'étendent parallèlement et la rainure 22 est disposée en parallèle de la rainure externe 20. Le bord interne 128 est positionné vers l'intérieur de la machine 2 par rapport au bord intermédiaire 124 et s'étend sur une distance plus importante dans le volume intérieur V que le bord intermédiaire 124. A titre d'exemple, le bord intermédiaire peut s'étendre sur une hauteur de 2,5 mm, tandis que le bord interne 128 peut s'étendre sur une longueur de 30 mm. Des ponts de matière 130 formés entre les bords intermédiaire 124 et interne 128 sont prévus à intervalles réguliers dans la deuxième rainure périphérique 22. Ces ponts de matière 130 sont notamment représentés aux figures 2 et 4.The cover 12 and the frame are in contact with two respectively outer and outer sealing barriers B1 and B2 spaced from each other, the two sealing barriers B1 and B2 each extending over the entire periphery of the cover 12 except at the passage opening 120. The two sealing barriers B1 and B2 are made by two separate seals 16 and 18, respectively housed in a first peripheral groove 20 and a second peripheral groove 22 of the cover 12, and in contact with the frame 6 and the cover 12. At the figure 5 , the two sealing barriers B1 and B2 are schematically represented each by a thick line and form obstacle to the passage of oil or flock. The external sealing barriers B1 and internal B2 are spaced apart in the lateral direction and are arranged in parallel with each other. In other words, a substantially constant distance separates the two internal and external sealing barriers all along the sealing barriers. This stems from the constant geometries of the frame 6, the cover 12 and the seals 16 and 18 along the sealing barriers B1 and B2. The first peripheral groove 20, called the outer groove, follows the entire contour of the cover 12, including at the drive zone Z10, except at the opening 120 for the passage of the levers 14. The first peripheral groove 20 is delimited between an outer edge 122 of the cover 12, and an intermediate edge 124 of the cover 12 and extends from the wall 126 of the cover 12. The second internal peripheral groove 22 is adjacent to the first groove 20 and follows any the outer peripheral groove 20 to extend over the entire contour of the cover 12, including at the drive zone Z10, except at the opening 120 for passage of the levers 14. The second peripheral groove 22 is formed between the intermediate edge 124 and an inner edge 128. The edges 122, 124 and 128 extend in parallel and the groove 22 is disposed in parallel with the outer groove 20. The inner edge 128 is positioned towards the inside of the mach. 2 relative to the intermediate edge 124 and extends over a greater distance in the interior volume V than the intermediate edge 124. By way of example, the intermediate edge can extend over a height of 2.5 mm, while the inner edge 128 may extend over a length of 30 mm. Bridges of material 130 formed between the intermediate 124 and inner edges 128 are provided at regular intervals in the second peripheral groove 22. These material bridges 130 are shown in particular in FIGS. figures 2 and 4 .

Le capot 12 comprend également une nervure interne 24 qui délimite une coque interne qui vient entourer de manière continue la zone des leviers Z14, excepté au niveau de l'ouverture de sortie 120. La nervure interne 24 suit, à l'arrière de la zone des leviers Z14, du côté opposé à l'ouverture de passage des leviers 120, et du côté opposé à la zone d'entraînement Z10, le bord interne 128 de manière parallèle. La nervure interne 24 est à ce niveau plus proéminente que le bord interne 128 et que le bord externe 122. La nervure interne 24 s'étend également transversalement au bord interne 128 et au bord externe 122 pour former une délimitation entre la zone des leviers Z14 et la zone d'entraînement Z10, comme cela est visible à la figure 3.The cover 12 also includes an internal rib 24 which delimits an inner shell which continuously surrounds the zone of the levers Z14, except at the outlet opening 120. The internal rib 24 follows, at the rear of the zone levers Z14, on the opposite side to the passage opening of the levers 120, and the opposite side to the drive zone Z10, the inner edge 128 in parallel. The internal rib 24 is at this level more prominent than the inner edge 128 and the outer edge 122. The internal rib 24 also extends transversely to the inner edge 128 and to the outer edge 122 to form a delimitation between the zone of the levers Z14 and the training zone Z10, as can be seen in figure 3 .

Le capot 12 comprend également une rainure 26 en U ménagée autour de l'ouverture de sortie 120, débouchant dans la direction D12 vers l'intérieur de la machine et logeant un troisième joint d'étanchéité 28.The cover 12 also comprises a U-shaped groove 26 formed around the outlet opening 120, opening in the direction D12 towards the inside of the machine and housing a third seal 28.

Au moins un des joints d'étanchéité 16 et 18 présente une extrémité creuse. Sur les figures 6 et 7, les joints 16 et 18 sont représentés en configuration libre, c'est-à-dire non montée dans le capot 12, les joints n'étant donc pas déformés.At least one of the seals 16 and 18 has a hollow end. On the Figures 6 and 7 , seals 16 and 18 are shown in free configuration, that is to say, not mounted in the cover 12, the seals are not deformed.

Le premier joint d'étanchéité 16 représenté à la figure 6 est formé d'un profil extrudé en silicone. Le profil comprend une base 160 pourvue d'ergots 160a de chaque côté formant des profils en « sapin » qui permettent son insertion et son ancrage dans la rainure 20 correspondante. La base 160 se prolonge en une extrémité creuse 162 apte à se déformer au contact du bâti 6. L'extrémité creuse 162 est plus large que la base 160, ce qui permet de positionner le premier joint 16 dans la première rainure 20 avec l'extrémité creuse 162 en butée contre le bord externe 122 et contre le bord intermédiaire 124 comme cela est visible aux figures 4 et 5. L'extrémité creuse 162 définit un profil fermé et creux présentant deux géométries de centrage internes 162a et 162b adaptées pour coopérer l'une avec l'autre par complémentarité de formes selon la direction de montage D12.The first seal 16 shown in FIG. figure 6 is formed of an extruded silicone profile. The profile comprises a base 160 provided with lugs 160a on each side forming "fir" profiles which allow its insertion and its anchoring in the corresponding groove. The base 160 extends into a hollow end 162 able to deform in contact with the frame 6. The hollow end 162 is wider than the base 160, which makes it possible to position the first seal 16 in the first groove 20 with the hollow end 162 abuts against the outer edge 122 and against the intermediate edge 124 as can be seen in FIGS. figures 4 and 5 . The hollow end 162 defines a closed and hollow profile having two internal centering geometries 162a and 162b adapted to cooperate with each other by complementarity of shapes according to the mounting direction D12.

Le deuxième joint d'étanchéité 18 comprend une base 180 et une patte 182. La base 180 comprend des ergots 180a formant un profil « en sapin » adapté pour s'insérer et s'ancrer dans la rainure 22. La patte 182 se termine par une extrémité 184 à profil fermé et creux. A l'état libre représenté à la figure 7, la patte 182 est ouverte, c'est-à-dire inclinée par rapport à une paroi de la base 180 selon un angle a1 pouvant être par exemple de 175°, l'angle a1 étant pris hors de la matière du joint 18. Lorsque la base 180 du deuxième joint 18 est montée dans la deuxième rainure périphérique 22, la patte 182 est donc élastiquement plaquée contre la surface périphérique 128a latérale du bord interne 128 du capot 12. L'extrémité creuse 184 présente une face 184a inclinée selon un angle a2 par rapport à la surface de la patte 182 au contact avec le bord interne 128 lorsque le joint 18 est à l'état libre. L'angle a2 peut être compris entre 40 et 60°.The second seal 18 comprises a base 180 and a lug 182. The base 180 comprises lugs 180a forming a "fir" profile adapted to be inserted and anchored in the groove 22. The lug 182 ends with an end 184 closed profile and hollow. In the free state represented in figure 7 , the tab 182 is open, that is to say inclined relative to a wall of the base 180 at an angle a1 which may be for example 175 °, the angle a1 being taken out of the material of the seal 18. When the base 180 the second seal 18 is mounted in the second peripheral groove 22, the tab 182 is therefore elastically pressed against the peripheral peripheral surface 128a of the inner edge 128 of the cover 12. The hollow end 184 has a face 184a inclined at an angle a2 relative to on the surface of the tab 182 in contact with the inner edge 128 when the seal 18 is in the free state. The angle a2 can be between 40 and 60 °.

Le troisième joint d'étanchéité 28 a une géométrie identique à celle du premier joint 16 avec sa base ancrée dans la rainure 26 en configuration montée du joint 28.The third seal 28 has a geometry identical to that of the first seal 16 with its base anchored in the groove 26 in the assembled configuration of the seal 28.

Le profil extrudé du joint d'étanchéité 16 est découpé à la longueur correspondant à la longueur de la rainure périphérique externe 20 et le joint 16 est placé dans la rainure périphérique externe 20 du capot 12.The extruded profile of the seal 16 is cut to the length corresponding to the length of the outer peripheral groove 20 and the seal 16 is placed in the outer peripheral groove 20 of the cover 12.

Le profil extrudé du joint d'étanchéité 18 est découpé à la longueur correspondant à la longueur de la rainure périphérique interne 22, la longueur du joint 18 étant de fait inférieure à la longueur du joint 16, et le joint 18 est placé dans la rainure périphérique interne 22 du capot 12.The extruded profile of the gasket 18 is cut to the length corresponding to the length of the inner peripheral groove 22, the length of the gasket 18 being in fact less than the length of the gasket 16, and the gasket 18 is placed in the groove internal device 22 of the hood 12.

Lors de la mise en place du capot 12 sur le bâti 6, un capot déflecteur 7 est préalablement mis en place autour des composants mécaniques de la zone d'entraînement Z10. Le capot 12 est ensuite mis en place sur le bâti 6, dans la direction verticale, qui correspond à la direction de montage D12, puis des vis épaulées sont insérées dans trois logements traversant le capot 12 et dans le bâti 6. Certaines de ces vis épaulées sont destinées à rester montées sur le capot 12 lorsque celui-ci est ultérieurement démonté du bâti 6.When placing the cover 12 on the frame 6, a baffle cover 7 is previously put in place around the mechanical components of the drive zone Z10. The cover 12 is then placed on the frame 6, in the vertical direction, which corresponds to the mounting direction D12, then stepped screws are inserted into three housings passing through the cover 12 and into the frame 6. Some of these screws shoulders are intended to remain mounted on the cover 12 when it is subsequently removed from the frame 6.

Comme cela est représenté à la figure 8, dans la zone d'entraînement Z10, la machine 2 comprend une vis de fixation 30 formée par un corps de vis 300 et un insert 302 disposé autour du corps de vis 300. Le corps de vis 300 et l'insert 302 restent logés dans le capot 12 lorsque le capot 12 est démonté. La vis 30 est montée dans un logement 132 du capot 12 qui forme une protubérance cylindrique s'étendant dans le volume intérieur V. L'insert 302 présente une forme cylindrique complémentaire de la forme cylindrique interne du logement qui centre le capot 6 sur la vis 30, donc sur le bâti 6 lorsque la vis 30 est en prise avec le bâti 6, ce qui garantit des appuis optimaux des joints d'étanchéité 16 et 18 contre le bâti 6. Un joint torique 304 logé dans une gorge périphérique externe de l'insert 302 est interposé entre l'insert 302 et le logement 132 et assure l'étanchéité radiale entre l'insert 302 et le logement 132. L'étanchéité radiale entre la vis 30 et le capot 12 est donc réalisée.As shown in figure 8 in the drive zone Z10, the machine 2 comprises a fixing screw 30 formed by a screw body 300 and an insert 302 disposed around the screw body 300. The screw body 300 and the insert 302 remain housed in the cover 12 when the cover 12 is disassembled. The screw 30 is mounted in a housing 132 of the cover 12 which forms a cylindrical protuberance extending into the internal volume V. The insert 302 has a cylindrical shape complementary to the internal cylindrical shape of the housing which centers the cover 6 on the screw 30, thus on the frame 6 when the screw 30 is engaged with the frame 6, which ensures optimum support of the seals 16 and 18 against the frame 6. An O-ring 304 housed in an external peripheral groove of the insert 302 is interposed between the insert 302 and the housing 132 and provides radial sealing between the insert 302 and the housing 132. The radial seal between the screw 30 and the cover 12 is thus achieved.

Un joint torique 306 logé dans une gorge 300a du corps de vis 300 est interposé entre le corps de vis 300 et l'insert 302 et assure l'étanchéité radiale entre le corps de vis 300 et l'insert 302. L'insert 302 est interposé entre la tête 300b du corps de vis 300 et le capot 12. Le corps de vis 300 présente un filetage 300c amené en prise dans un taraudage 62 du bâti 6.An O-ring 306 housed in a groove 300a of the screw body 300 is interposed between the screw body 300 and the insert 302 and provides radial sealing between the screw body 300 and the insert 302. The insert 302 is interposed between the head 300b of the screw body 300 and the 12. The screw body 300 has a thread 300c engaged in a tapping 62 of the frame 6.

L'insert 302 présente un épaulement 302a qui repose sur une surface externe 132a du logement 132. L'insert 302 est en contact avec le bâti 6 par son extrémité 302b opposée à l'épaulement 302a. L'insert 302 forme une entretoise entre la tête du corps de vis 300b et le bâti 6 lorsque la vis 30 est serrée. L'insert 302 positionne donc le capot 12 par rapport au bâti dans la direction D12 et centre le capot 12 par rapport au bâti dans une direction latérale, transversale à la direction D12 en coopérant avec le logement allongé 132 pour garantir un placement et un centrage précis du capot 12 par rapport au bâti 6 et des appuis optimaux des joints d'étanchéité 16 et 18 contre le bâti 6.The insert 302 has a shoulder 302a which rests on an outer surface 132a of the housing 132. The insert 302 is in contact with the frame 6 by its end 302b opposite to the shoulder 302a. The insert 302 forms a spacer between the head of the screw body 300b and the frame 6 when the screw 30 is tightened. The insert 302 thus positions the cover 12 relative to the frame in the direction D12 and centers the cover 12 relative to the frame in a lateral direction, transverse to the direction D12 cooperating with the elongated housing 132 to ensure placement and centering precise cover 12 relative to the frame 6 and optimum supports of the seals 16 and 18 against the frame 6.

La vis 300 est vissée dans le bâti 6 à travers un orifice 70 du capot déflecteur 7. Un joint torique 72, placé dans l'insert 302, est en appui contre le bord de l'orifice 70 et assure un appui et une étanchéité entre l'insert 302 et le capot déflecteur 7 lorsque la vis 30 est serrée.The screw 300 is screwed into the frame 6 through an orifice 70 of the baffle cover 7. An O-ring 72, placed in the insert 302, bears against the edge of the orifice 70 and provides a support and a seal between the insert 302 and the baffle cover 7 when the screw 30 is tightened.

Dans la zone des leviers Z14, la machine 2 comprend deux vis de fixation 32, qui sont insérées à travers des orifices 134 du capot 12. Chacune des vis 32 comprend un corps de vis 320 présentant un filetage 320a amené en prise dans un taraudage 64 du bâti 6. Le corps de vis 320 comprend une surface d'épaulement 320b. Lorsque la vis 32 est serrée, la surface d'épaulement 320b vient en contact d'une surface 66 du bâti 6, ce qui entretoise la tête de vis 320c et le bâti 6. Un joint torique 322, disposé dans une gorge 320d prévue sous la tête de vis 320c, coopère avec un chanfrein 134a du capot 12 pour assurer l'étanchéité entre la vis 32 et le capot 12, et garantir un placement et un centrage précis du capot 12 par rapport au bâti 6 et des appuis optimaux des joints d'étanchéité 16 et 18 contre le bâti 6.In the area of the Z14 levers, the machine 2 comprises two fastening screws 32, which are inserted through the orifices 134 of the cover 12. Each of the screws 32 comprises a screw body 320 having a thread 320a threaded into a thread 64 of the frame 6. The screw body 320 includes a shoulder surface 320b. When the screw 32 is tightened, the shoulder surface 320b comes into contact with a surface 66 of the frame 6, which struts the screw head 320c and the frame 6. An O-ring 322, disposed in a groove 320d provided under the screw head 320c, cooperates with a chamfer 134a of the cover 12 to seal between the screw 32 and the cover 12, and ensure accurate placement and centering of the cover 12 relative to the frame 6 and optimal support joints sealing 16 and 18 against the frame 6.

Selon une variante non représentée, la machine 2 peut comprendre un nombre différent de vis de fixation 32 dans la zone des leviers Z14.According to a variant not shown, the machine 2 may comprise a different number of fastening screws 32 in the region of the levers Z14.

Lorsque l'insert 302 est en appui contre le bâti 6 et que les épaulements 320b des vis 32 dans la zone des leviers Z14 sont en appui contre les surfaces 66, un jeu J existe entre le capot 12 hors des zones d'étanchéité et le bâti 6, de telle manière que seuls les joints d'étanchéité 16, 18 et 28 sont plaqués contre le bâti 6, les platines 17 et la traverse 15. Le jeu J est visible sur la figure 8 entre le capot 12 et une surface 68 du bâti 6.When the insert 302 bears against the frame 6 and the shoulders 320b of the screws 32 in the zone of the levers Z14 bear against the surfaces 66, a clearance J exists between the cover 12 outside the sealing zones and the frame 6, such that only the seals 16, 18 and 28 are pressed against the frame 6, the plates 17 and the cross 15. The game J is visible on the figure 8 between the cover 12 and a surface 68 of the frame 6.

Avec le serrage des vis 30 et 32, le premier joint 16 est pressé uniformément dans la direction de montage D12 contre la surface périphérique 60a formant l'extrémité haute horizontale du bâti 6, cette surface 60a étant portée par le rebord 60, de manière que la portion creuse 162 du premier joint 16, disposée hors de la rainure périphérique 20, s'écrase contre cette surface 60a et se centre par rapport à la base 160 par la coopération des géométries 162a et 162b. Le joint 16 est alors déformé entre la surface périphérique 60a et une cavité courbe 124a qui constitue la surface d'extrémité du bord intermédiaire 124 et qui épouse la géométrie de l'extrémité creuse 162 déformée. Le premier joint 16, en coopération avec le capot 12 et le bâti 6, forme la barrière d'étanchéité externe B1 avec contact étanche vertical du premier joint 16 sur le bâti 6 et sur le capot 12. Le contact du premier joint 16 avec le bâti 6 se fait verticalement au niveau d'une surface périphérique plane sans rainure. Cette barrière d'étanchéité externe s'étend de manière ininterrompue sur toute la périphérie du bâti 6 et du capot 12, excepté au voisinage de l'ouverture de passage 120 pour les leviers 14, pour former un obstacle à l'entrée de bourre ou de toute autre pollution extérieure dans la cuve du bâti 6. La barrière d'étanchéité externe B1 délimite le volume intérieur V de la machine.With the tightening of the screws 30 and 32, the first seal 16 is pressed uniformly in the mounting direction D12 against the peripheral surface 60a forming the horizontal high end of the frame 6, this surface 60a being carried by the flange 60, so that the hollow portion 162 of the first seal 16, disposed outside the peripheral groove 20, crushes against this surface 60a and is centered with respect to the base 160 by the cooperation of geometries 162a and 162b. The seal 16 is then deformed between the peripheral surface 60a and a curved cavity 124a which constitutes the end surface of the intermediate edge 124 and which matches the geometry of the hollow end 162 deformed. The first seal 16, in cooperation with the cover 12 and the frame 6, forms the external sealing barrier B1 with vertical sealing contact of the first seal 16 on the frame 6 and on the cover 12. The contact of the first seal 16 with the frame 6 is vertically at a flat peripheral surface without groove. This external sealing barrier extends uninterruptedly over the entire periphery of the frame 6 and the cover 12, except in the vicinity of the passage opening 120 for the levers 14, to form an obstacle to the entry of fluff or any other external pollution in the tank of the frame 6. The external sealing barrier B1 defines the internal volume V of the machine.

Le bord interne 128 suit le rebord 60 du bâti. Lors de la mise en place du capot 12 sur le bâti, selon la direction D12, la portion creuse 184 du deuxième joint 18 vient au contact du bâti 6 et le deuxième joint 18 est donc maintenu en butée dans la rainure périphérique interne 22, en contact avec les ponts de matière 130, ce qui force la déformation de l'ensemble de sa portion creuse 184 entre le bâti 6 et la surface périphérique 128a latérale du bord interne 128, sur toute la périphérie du capot 12 et du bâti 6, excepté au voisinage de l'ouverture de passage 120 de sortie des leviers. Le contact du deuxième joint 18 avec le bâti 6 se fait au niveau d'une surface périphérique latérale interne 60b du rebord 60, disposée dans la cuve du bâti 6, qui présente un renflement, formé par une épaisseur supérieure à l'épaisseur du rebord 60 au niveau de la surface 60a. La prise de contact du deuxième joint 18 avec la surface périphérique latérale interne 60b se fait préférentiellement après la prise de contact du premier joint 16 avec la surface périphérique 60a. La déformation du deuxième joint 18 se fait dans la direction latérale.The inner edge 128 follows the flange 60 of the frame. When placing the cover 12 on the frame, in the direction D12, the hollow portion 184 of the second seal 18 comes into contact with the frame 6 and the second seal 18 is thus held in abutment in the inner peripheral groove 22, contact with the material bridges 130, which forces the deformation of its entire hollow portion 184 between the frame 6 and the lateral peripheral surface 128a of the inner edge 128, over the entire periphery of the cover 12 and the frame 6, except in the vicinity of the passage opening 120 of the levers outlet. The contact of the second seal 18 with the frame 6 is at an inner lateral peripheral surface 60b of the flange 60, disposed in the vessel of the frame 6, which has a bulge, formed by a thickness greater than the thickness of the rim 60 at the surface 60a. The engagement of the second seal 18 with the inner lateral peripheral surface 60b is preferably done after the first seal 16 is contacted with the peripheral surface 60a. The deformation of the second seal 18 is in the lateral direction.

Le deuxième joint 18, en coopération avec le capot 12 et le bâti 6, forme la barrière d'étanchéité interne B2 avec contact étanche latéral du deuxième joint 18 sur le bâti 6 et sur le capot 12. Cette barrière d'étanchéité interne B2 s'étend de manière ininterrompue sur toute la périphérie du bâti 6 et du capot 12, excepté au niveau de l'ouverture de passage 120 pour les leviers 14 pour former un obstacle à la sortie de microgouttelettes d'huile ou d'un brouillard d'huile, de la cuve du bâti 6 vers l'extérieur de la machine. La barrière d'étanchéité interne B2 est contenue dans le volume intérieur V et est disposée en parallèle et à distance de la barrière d'étanchéité externe B1 formée par le premier joint 16.The second seal 18, in cooperation with the cover 12 and the frame 6, forms the internal sealing barrier B2 with lateral sealing contact of the second seal 18 on the frame 6 and on the cover 12. This internal sealing barrier B2 s extends uninterruptedly over the entire periphery of the frame 6 and the cover 12, except at the passage opening 120 for the levers 14 to form an obstacle at the outlet of microdroplets of oil or a mist of oil, tank frame 6 to the outside of the machine. The internal sealing barrier B2 is contained in the internal volume V and is arranged in parallel and at a distance from the external sealing barrier B1 formed by the first seal 16.

La coque interne 24 est décalée vers l'intérieur par rapport à la barrière d'étanchéité interne.The inner shell 24 is shifted inward with respect to the internal sealing barrier.

Les barrières d'étanchéité externe B1 et interne B2 étant à distance l'une de l'autre, il n'y a donc pas de contact entre les joints 16 et 18 au niveau des barrières d'étanchéité et une chambre intermédiaire V1 sépare les deux barrières d'étanchéité, un phénomène de migration d'huile par capillarité est évité.Since the external sealing barriers B1 and B2 are at a distance from one another, there is no contact between the seals 16 and 18 at the level of the sealing barriers and an intermediate chamber V1 separates the two sealing barriers, an oil migration phenomenon by capillarity is avoided.

Le troisième joint d'étanchéité 28 est pressé verticalement uniformément contre des platines rapportées sur le bâti 6 et la traverse 15 fixée sur les platines 17 et équivalentes par des vis 36, de manière que la portion creuse du troisième joint 28, disposée hors de la rainure périphérique 26, s'écrase et se centre, par rapport à la base du joint 28, par coopération de géométries complémentaires de la même manière que le premier joint 16.The third seal 28 is pressed vertically uniformly against plates reported on the frame 6 and the crossbar 15 fixed on the plates 17 and equivalent by screws 36, so that the hollow portion of the third seal 28, disposed out of the peripheral groove 26, crushes and centers, with respect to the base of the gasket 28, by cooperation of complementary geometries in the same manner as the first gasket 16.

La nervure interne 24 reste à distance du bâti 6 tout en suivant son rebord 60 sans qu'une étanchéité ou un contact soit formé entre la nervure interne 24 et le bâti 6. En fonctionnement de tissage, les projections d'huile dans la zone des leviers Z14, en particulier à l'arrière des leviers 14, du côté opposé à l'ouverture de passage des leviers 120, sont contenues par la coque interne formée par la nervure interne 24, qui forme un obstacle et assure la fonction de déflecteur. Le brouillard d'huile dégagé par la machine 2 dans le volume intérieur V s'élève entre la nervure interne 24 et le rebord 60. Le deuxième joint 18 forme une barrière étanche qui empêche le brouillard d'huile de parvenir au contact du premier joint 16. Le premier joint 16 forme une barrière étanche aux pollutions extérieures et en particulier à la bourre, qui reste à distance du deuxième joint 18 et donc de l'huile. Toute capillarité est donc évitée.The internal rib 24 remains at a distance from the frame 6 while following its rim 60 without any sealing or contact being formed between the internal rib 24 and the frame 6. In the weaving operation, the projections of oil in the zone of levers Z14, in particular at the rear of the levers 14, on the opposite side to the passage opening of the levers 120, are contained by the inner shell formed by the internal rib 24, which forms an obstacle and acts as a deflector. The oil mist generated by the machine 2 in the interior volume V rises between the internal rib 24 and the rim 60. The second seal 18 forms a sealed barrier which prevents the oil mist from coming into contact with the first seal 16. The first seal 16 forms a tight barrier to external pollution and in particular to the wad, which remains at a distance from the second seal 18 and therefore the oil. Any capillarity is avoided.

Les barrières d'étanchéité externe B1 et interne B2 sont assurées par des joints d'étanchéité plutôt que par des chicanes, ce qui limite les zones de rétention d'huile et renforce l'efficacité de l'étanchéité.External B1 and B2 internal sealing barriers are provided by seals rather than by baffles, which limits the oil retention zones and enhances the effectiveness of the seal.

Les barrières d'étanchéité interne et externe sont formées entre un même capot 12 et un même bâti 6, ce qui simplifie la réalisation et améliore la précision de positionnement et de déformation des joints 16 et 18 pour une étanchéité sur toute la longueur des joints, soit sur toute la périphérie du capot 12 excepté au voisinage de l'ouverture 120.The internal and external sealing barriers are formed between the same cover 12 and the same frame 6, which simplifies the implementation and improves the positioning and deformation accuracy of the seals 16 and 18 for sealing over the entire length of the seals, or on the entire periphery of the cover 12 except in the vicinity of the opening 120.

La nervure interne 24 prévue en périphérie de la zone des leviers Z14 est intégrée sur le capot 12, ce qui limite le nombre de capots et de déflecteurs.The internal rib 24 provided on the periphery of the zone of the levers Z14 is integrated on the cover 12, which limits the number of covers and baffles.

Les joints d'étanchéité 16, 18 et 28 sont chacun logés dans une rainure du capot 12. Cela limite les usinages à pratiquer dans le bâti 6.The seals 16, 18 and 28 are each housed in a groove of the cover 12. This limits the machining to be performed in the frame 6.

Les rainures 22 et 20 débouchent vers le bas du capot 12, ce qui limite les zones potentielles de rétention d'huile. En effet l'huile qui est susceptible de s'introduire dans ces rainures s'écoule vers la cuve du bâti 6 et ne peut donc s'accumuler.The grooves 22 and 20 open towards the bottom of the hood 12, which limits the potential zones of oil retention. Indeed the oil that is likely to be introduced into these grooves flows to the tank of the frame 6 and can not accumulate.

Les deux joints 16 et 18 viennent en contact avec le bâti 6 respectivement dans la direction verticale et dans la direction latérale, la déformation du joint 16 ne provoquant pas de mouvement latéral du capot 12. Ces deux joints garantissent une étanchéité entre le capot 12 et le bâti 6 tout le long des deux barrières d'étanchéité. Les deux barrières d'étanchéité sont disposées en parallèle pour faciliter le montage du capot 12 et la mise en contact étanche des joints 16 et 18 avec les surfaces respectives 60a, 124a et 60b, 128 sur lesquelles ils sont pressés. La barrière d'étanchéité externe B1 et la barrière d'étanchéité interne B2 sont décalées selon la direction de montage D12 du capot 12 sur le bâti 6, avec un décalage vertical selon la direction D12 de l'ordre de 5 mm.The two seals 16 and 18 come into contact with the frame 6 respectively in the vertical direction and in the lateral direction, the deformation of the seal 16 does not cause lateral movement of the cover 12. These two seals ensure a seal between the cover 12 and the frame 6 all along the two sealing barriers. The two sealing barriers are arranged in parallel to facilitate the mounting of the cover 12 and the sealing engagement of the seals 16 and 18 with the respective surfaces 60a, 124a and 60b, 128 on which they are pressed. The external sealing barrier B1 and the internal sealing barrier B2 are offset in the mounting direction D12 of the cover 12 on the frame 6, with a vertical offset in the direction D12 of the order of 5 mm.

Les dispositifs de fixation par vis centrées par rapport au capot 12 lors du vissage garantissent un bon positionnement des joints 16 et 18 formant les barrières d'étanchéité interne et externe vis-à-vis du bâti 6. Les vis épaulées 30 et 32 permettent de contrôler l'écrasement des joints 16 et 18. La coopération des géométries 162a et 162b du premier joint 16 favorise la bonne mise en place du joint 16 contre le bâti 6 pour une étanchéité optimale.The fastening devices by screws centered with respect to the cover 12 during the screwing ensure a good positioning of the seals 16 and 18 forming the internal and external sealing barriers with respect to the frame 6. The stepped screws 30 and 32 make it possible to check the crushing of the seals 16 and 18. The cooperation of the geometries 162a and 162b of the first seal 16 promotes the proper placement of the seal 16 against the frame 6 for optimum sealing.

Le joint d'étanchéité 322 entre la vis de fixation 32 et le capot 12 évite les fuites au niveau de la fixation.The seal 322 between the fixing screw 32 and the cover 12 prevents leakage at the attachment.

Les figures 10 et 14 représentent deux autres modes de réalisation de l'invention. Dans ces modes de réalisation, les éléments communs au premier mode de réalisation portent les mêmes références et fonctionnent de la même manière. Seules les différences par rapport au premier mode de réalisation sont détaillées ci-après.The figures 10 and 14 represent two other embodiments of the invention. In these embodiments, the elements common to the first embodiment bear the same references and operate in the same way. Only the differences with respect to the first embodiment are detailed below.

Dans le mode de réalisation de la figure 10, les barrières d'étanchéité externe B1 et interne B2 sont formées par un seul joint d'étanchéité 50 et représentées chacune par un trait épais. Dans ce cas, le joint 50 comporte une base 502 munie d'ergots latéraux 502a, formant un profil « en sapin », permettant l'ancrage dans la rainure interne 22. Le joint 50 se prolonge en direction de l'extérieur de la machine 2 par une lèvre 504 qui vient s'intercaler, d'une part, entre le bord externe 122 et le bord intermédiaire 124 et d'autre part, la surface horizontale 60a du rebord 60 du bâti 6, ce qui assure un contact étanche dans la direction verticale. A l'état libre du joint 50, la lèvre 504 est dans une position libre représentée par son contour 504'. En configuration montée, la lèvre 504 est déformée entre le rebord 60 et les bords 122 et 124. La lèvre 504 permet de réaliser la barrière d'étanchéité externe B1.In the embodiment of the figure 10 , the outer sealing barriers B1 and B2 internal are formed by a single seal 50 and each represented by a thick line. In this case, the seal 50 comprises a base 502 provided with lateral lugs 502a, forming a "fir" profile, allowing anchoring in the internal groove 22. The seal 50 extends towards the outside of the machine 2 by a lip 504 which is interposed, on the one hand, between the outer edge 122 and the intermediate edge 124 and on the other hand, the horizontal surface 60a of the flange 60 of the frame 6, which ensures a tight contact in the vertical direction. In the free state of the seal 50, the lip 504 is in a free position represented by its contour 504 '. In mounted configuration, the lip 504 is deformed between the flange 60 and the edges 122 and 124. The lip 504 makes it possible to produce the external sealing barrier B1.

La base 502 du joint 50 est prolongée en direction du fond du bâti 6 par une patte 506 terminée par une lèvre 506a, la patte 506 étant en contact avec le bord interne 128. Dans une configuration libre représentée par son contour 506a', la lèvre 506a a une forme inclinée par rapport à la patte 506. Lorsque le capot 12 est monté sur le bâti 6, la lèvre 506a est déformée et recourbée contre la surface périphérique latérale interne 60b, ce qui assure un contact étanche latéral avec le bâti 6 et le bord interne 128 et forme la barrière d'étanchéité interne B2.The base 502 of the seal 50 is extended towards the bottom of the frame 6 by a tab 506 terminated by a lip 506a, the tab 506 being in contact with the inner edge 128. In a free configuration represented by its contour 506a ', the lip 506a has a shape inclined with respect to the tab 506. When the cover 12 is mounted on the frame 6, the lip 506a is deformed and bent against the inner lateral peripheral surface 60b, which ensures lateral sealing contact with the frame 6 and the inner edge 128 and forms the internal sealing barrier B2.

Selon un mode de réalisation non représenté de l'invention, la machine de formation de la foule peut comprendre deux joints d'étanchéité, formant chacun l'une des barrières d'étanchéité interne et externe, qui comprennent, à leur extrémité, des lèvres d'étanchéité semblables à celles décrites dans la figure 10 en remplacement des extrémités creuses 162 et 184.According to a not shown embodiment of the invention, the shedding machine may comprise two seals, each forming one of the internal and external sealing barriers, which comprise, at their end, lips similar to those described in the figure 10 replacing the hollow ends 162 and 184.

Dans le mode de réalisation des figures 11 à 14, une machine de formation de la foule 2' fonctionnant selon le principe des machines à cames (MAF) est représentée. La zone d'entraînement Z10 de réception d'organes de transmission de couple entre l'arbre d'entraînement 4 et l'arbre d'actionnement 9 est disposée de manière adjacente à la zone des leviers Z14 le long de l'axe X10 de l'arbre 10, au niveau de l'arbre d'entraînement 4, d'un pignon conique monté sur l'arbre 4 et d'une roue conique montée sur l'arbre 9, connus en soi. Des galets portés par les leviers 14 coopèrent avec des cames 21 solidaires en rotation de l'arbre d'actionnement 9 pour la mise en mouvement des leviers 14 par rotation de l'arbre d'actionnement 9. L'arbre d'actionnement 9 est supporté par deux platines 17 solidaires du bâti 6. L'arbre d'actionnement 9 s'étend dans la zone des leviers Z14. L'axe longitudinal X9 de l'arbre 9 est parallèle à l'axe X10. Les galets et cames 21 sont également disposés dans la zone d'accueil des leviers Z14. Dans ce cas, le capot 12' présente une coque interne délimitée par une nervure interne 24' comprenant une partie 242 s'étendant à l'arrière de la zone des leviers Z14, du côté opposé à l'ouverture de passage des leviers 120 et se prolongeant par une partie 244 s'étendant en périphérie de la zone d'entraînement Z10, en parallèle du bord interne du capot 12 délimitant la rainure pour le deuxième joint 18. La nervure interne 24' est complétée par une partie 246 formant une nervure transversale séparant le volume dévolu à la zone des galets, des cames et des leviers Z14 et le volume de la zone d'entraînement Z10. Dans le volume intérieur V, du côté opposé à la zone d'entraînement par rapport à la zone des leviers Z14 s'étend une zone de nivelage Z19 comprenant les moyens de déplacement de l'arbre 10 par rapport aux platines 17 lors du nivelage des leviers 14. Les premier et deuxième joints 16, 18 sont disposés à distance et en parallèle sur toute la périphérie du capot 12 où ils forment chacun une barrière d'étanchéité interne, externe non représentée, excepté au voisinage de l'ouverture de passage 120.In the embodiment of Figures 11 to 14 a crowd forming machine 2 'operating on the principle of cam machines (MAF) is shown. The torque transmission receiving zone Z10 between the drive shaft 4 and the actuating shaft 9 is disposed adjacent to the zone of the levers Z14 along the axis X10 of the shaft 10, at the drive shaft 4, a conical gear mounted on the shaft 4 and a conical wheel mounted on the shaft 9, known per se. Rollers carried by the levers 14 cooperate with cams 21 integral in rotation with the actuating shaft 9 for moving the levers 14 by rotation of the actuating shaft 9. The actuating shaft 9 is supported by two plates 17 integral with the frame 6. The actuating shaft 9 extends in the zone of the levers Z14. The longitudinal axis X9 of the shaft 9 is parallel to the axis X10. The rollers and cams 21 are also arranged in the zone of reception of the levers Z14. In this case, the cover 12 'has an inner shell delimited by an internal rib 24' comprising a portion 242 extending behind the zone of the levers Z14, on the opposite side to the passage opening of the levers 120 and extending through a portion 244 extending peripherally of the drive zone Z10, in parallel with the inner edge of the cover 12 delimiting the groove for the second seal 18. The internal rib 24 'is completed by a portion 246 forming a rib cross section separating the volume devolved to the area of the rollers, cams and levers Z14 and the volume of the drive zone Z10. In the interior volume V, on the opposite side to the drive zone with respect to the zone of the levers Z14 extends a leveling zone Z19 comprising the means of displacement of the shaft 10 relative to the plates 17 during the leveling of the levers 14. The first and second seals 16, 18 are arranged at a distance and in parallel over the entire periphery of the cover 12, where they each form an internal, external, not shown, sealing barrier, except in the vicinity of the passage opening 120 .

En particulier, ainsi que le montre la figure 12, le bord interne 24 et donc le deuxième joint 18 sont interrompus à une distance d1 de l'ouverture 120 de l'ordre de 10 à 70 mm, alors que le premier joint 16 court jusqu'à l'ouverture 120. Dans ce cas les deux barrières d'étanchéité interne et externe s'étendent également chacune sur toute la périphérie du capot 12 excepté au niveau de l'ouverture 120, c'est-à-dire en regard de cette ouverture 120 ainsi que sur la distance d1, en regard de l'encoche qui jouxte l'ouverture 120.In particular, as shown in figure 12 , the inner edge 24 and therefore the second seal 18 are interrupted at a distance d1 from the opening 120 of the order of 10 to 70 mm, while the first seal 16 runs to the opening 120. In this case both internal and external sealing barriers also extend each over the entire periphery of the cover 12 except at the opening 120, that is to say opposite this opening 120 and the distance d1, facing of the notch which adjoins the opening 120.

Dans ce mode de réalisation, le capot 12' est solidarisé au bâti 6 par deux vis de fixation 90 et deux pinces de fixation 92. Les vis 90 viennent en appui contre le capot 12 et se vissent, à travers une saillie du bord externe 122 du capot 12, dans le bâti 6, elles ne traversent pas le volume intérieur V de la machine 2'.In this embodiment, the cover 12 'is secured to the frame 6 by two fixing screws 90 and two fixing clamps 92. The screws 90 bear against the cover 12 and screw, through a projection of the outer edge 122 of the cover 12, in the frame 6, they do not pass through the internal volume V of the machine 2 '.

Selon un mode de réalisation non représenté, l'extrémité inférieure de la nervure interne peut être immergée, au moins sur certaines portions de longueur, dans le bain d'huile au fond de la cuve du bâti 6.According to an embodiment not shown, the lower end of the internal rib can be immersed, at least on certain length portions, in the oil bath at the bottom of the tank of the frame 6.

Selon un autre mode de réalisation non représenté, les joints d'étanchéité 16, 18 et 28 peuvent être réalisés en un matériau élastomère en alternative au silicone.According to another embodiment not shown, the seals 16, 18 and 28 may be made of an elastomeric material as an alternative to silicone.

Selon un autre mode de réalisation non représenté, l'arbre d'entraînement 4 est un arbre de sortie du métier à tisser ou d'un moteur.According to another embodiment not shown, the drive shaft 4 is an output shaft of the loom or motor.

Selon un autre mode de réalisation non représenté, au moins un des joints formant les barrières d'étanchéité B1 et B2, par exemple le joint 16, peut ne pas comprendre de base insérée dans une rainure du capot 12 mais une base collée sur une surface périphérique du capot 12. Les deux joints 16 et 18, ou bien le joint 50, peuvent être fixés de cette manière.According to another embodiment not shown, at least one of the seals forming the sealing barriers B1 and B2, for example the seal 16, may not comprise a base inserted in a groove of the cover 12 but a base bonded to a surface The two seals 16 and 18, or the seam 50, can be fixed in this manner.

Claims (15)

  1. A machine (2, 2') for forming the shed, of the dobby or cam machine type for a weaving loom, the machine comprising:
    - output levers (14) performing, during weaving, an alternating oscillation movement around a common shaft (10),
    - a casing (12) with an output aperture (120) crossed by the levers (14),
    - a frame (6) which delimits, with the casing (12), an inner volume (V) of the machine comprising an area (Z10) for receiving torque transmission members (13) between a driving shaft (4) and an actuation shaft (9) for actuating the output levers (14) as well as an area (Z14) for receiving output levers, the receiving area (Z14) of the output levers being adjacent to the area (Z10) for receiving torque transmission members, and the frame (6) supporting the actuation shaft (9);
    characterized in that the casing (12) and the frame (6) are in contact, via at least one seal gasket (16, 18; 50), at both seal barriers (B1, B2) external (B1) and internal (B2) respectively, distant from each other, both seal barriers each extending over the whole periphery of the casing (12) except at the output aperture (120).
  2. The shed-forming machine according to claim 1, characterized in that the internal (B2) and external (B1) seal barriers are positioned in parallel to each other.
  3. The shed-forming machine according to one of the preceding claims, characterized in that a first seal gasket (16) forms the external seal barrier (B1) and a second seal gasket (18) forms the internal seal barrier (B2).
  4. The shed-forming machine according to one of the preceding claims, characterized in that at least one seal gasket (16, 18) of the external and internal (B1, B2) seal barriers has a recessed end (162, 184) able to be deformed between the casing (12) and the frame (6).
  5. The shed-forming machine according to claim 4, characterized in that the recessed end (162) defines a closed profile having two internal centering geometries (162a, 162b) adapted for cooperating with each other by a complementarity of shapes when the recessed end (162, 184) is deformed between the casing and the frame.
  6. The shed-forming machine according to one of the preceding claims, characterized in that at least one or each seal gasket (16, 18; 50) of the external and internal (B1, B2) seal barriers comprises a base (180, 160; 502) accommodated in a peripheral groove (20, 22) of the casing (12).
  7. The shed-forming machine according to claim 6, characterized in that the groove(s) (20, 22) open(s) along a direction (D12) for mounting the casing (12) on the frame (6).
  8. The shed-forming machine according to one of the preceding claims, characterized in that the external seal barrier (B1) is made between a horizontal end peripheral surface (60a) of an edge (60) of the frame (6) and a peripheral end surface (124a) of an edge of the casing (12).
  9. The shed-forming machine according to one of the preceding claims, characterized in that the internal seal barrier (B2) is made between a lateral peripheral surface (60b) of an edge (60) of the frame (6) and a peripheral lateral surface of an internal edge (128) of the casing (12).
  10. The shed-forming machine according to claim 9, characterized in that the seal gasket (18) forming the internal seal barrier (B2) comprises a base (180) inserted into a groove (22) of the casing (12) and a tab (182) extending from the base (180) as far as an end of this tab (182) in contact with the frame (6), the surface of this tab (182) flattened against the internal edge (128) of the casing (12) in a mounted configuration forming, in the free state of the seal gasket (18), an angle (a1) with the base (180) strictly less than 180°, preferably equal to 175°.
  11. The shed-forming machine according to one of the preceding claims, characterized in that the external seal barrier (B1) and the internal seal barrier (B2) are shifted along a direction (D12) for mounting the casing (12) on the frame (6).
  12. The shed-forming machine according to one of the preceding claims, characterized in that the casing (12) includes an internal rib (24), forming a shell shifted inwards relatively to the internal seal barrier (B2), this internal rib (24) extending at least at the rear of the area (Z14) for receiving the levers (14) and between the area for receiving the levers (Z14) and the driving area (Z10).
  13. The shed-forming machine according to one of the preceding claims, characterized in that the casing (12) is attached on the frame (6) by shouldered screws (30, 32), a seal gasket (304, 306, 322) being interposed between each shouldered screw (30, 32) and the casing (12).
  14. The shed-forming machine according to claim 13, characterized in that at least one (32) of the shouldered screws (30, 32) is inserted into an orifice (134) of the casing (12) for which the edges have a chamfer (134a), and in that the gasket (322) ensuring the seal between this shouldered screw (32) and the casing (12) is pressed between a head (320c) of this shouldered screw (32) and said chamfer (134a).
  15. A weaving loom comprising a shed-forming machine according to one of claims 1 to 14.
EP17182512.8A 2016-07-22 2017-07-21 Shed forming machine and loom including such a machine Active EP3272918B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1657057A FR3054245B1 (en) 2016-07-22 2016-07-22 MOBILE TRAINING MACHINE AND WEAVING MACHINE COMPRISING SUCH A MACHINE.

Publications (2)

Publication Number Publication Date
EP3272918A1 EP3272918A1 (en) 2018-01-24
EP3272918B1 true EP3272918B1 (en) 2019-05-15

Family

ID=56943821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17182512.8A Active EP3272918B1 (en) 2016-07-22 2017-07-21 Shed forming machine and loom including such a machine

Country Status (7)

Country Link
US (1) US10287712B2 (en)
EP (1) EP3272918B1 (en)
CN (1) CN107641874B (en)
BR (1) BR102017015702B1 (en)
FR (1) FR3054245B1 (en)
PT (1) PT3272918T (en)
TR (1) TR201910944T4 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3103235B1 (en) * 2019-11-15 2021-11-26 Staubli Sa Ets Bearing for a shed forming machine or motion transmission system, armor mechanism lever comprising such a bearing and a shed forming machine comprising such a lever or such a bearing

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2932901A (en) * 1960-04-19 Burner i
FR2152353B1 (en) * 1971-09-06 1974-08-19 Caen Adolphe Andre
US4513789A (en) * 1983-06-13 1985-04-30 The Baxter Corporation Jacquard harness attachment mechanism
EP0181413B1 (en) * 1984-11-13 1989-01-18 GebràœDer Sulzer Aktiengesellschaft Gripper shuttle loom
US4694866A (en) * 1986-05-05 1987-09-22 Kuo Ching Huang Shedding device for a circular weaving machine
JPS6359438A (en) * 1986-08-25 1988-03-15 村田機械株式会社 Positive dobby machine
EP0369939A1 (en) * 1988-11-16 1990-05-23 GebràœDer Sulzer Aktiengesellschaft Shaft support for a loom
EP0592605B1 (en) * 1991-07-04 1995-12-06 A.C.M. AZIENDA COSTRUZIONE MOTORI S.a.s. DI RACCA ANITA & C. Drive device for the cylinder of a hosiery machine and rotor assembly for a brushless synchronous motor
FR2733518B1 (en) * 1995-04-26 1997-06-27 Staubli Sa Ets BATI-SUPPORT FOR ARMOR MECHANICS
FR2734001B1 (en) * 1995-05-12 1997-06-27 Staubli Sa Ets ROTARY TYPE WEAPON MECHANICS FOR CROWD FORMATION ON WEAVING MACHINES
FR2772793B1 (en) * 1997-12-24 2000-01-28 Staubli Sa Ets LOCKING DEVICE OF AN ELECTRIC ROTARY ACTUATOR FOR FORMING CROWD ON WEAVING MATERIAL, WEAVING MECHANICS AND WEAVING MATERIAL
FR2772795B1 (en) * 1997-12-24 2000-01-28 Staubli Sa Ets ELECTRIC ROTARY ACTUATOR, FOR THE TRAINING OF THE CROWD ON A Loom and its method of manufacture, Mechanics of armor and loom
FR2772794B1 (en) * 1997-12-24 2000-01-28 Staubli Sa Ets JACQUARD WEAPON MECHANICS AND WEAVING MACHINE EQUIPPED WITH SUCH MECHANICS
SE9900791D0 (en) * 1999-03-03 1999-03-03 Iro Patent Ag Method for monitoring weft yarn run / stop conditions
FR2795434B1 (en) * 1999-06-25 2001-08-10 Staubli Sa Ets METHOD AND DEVICE FOR POSITIONING CHAIN THREADS OF A WEAVING MATERIAL AND WEAVING MATERIAL EQUIPPED WITH SUCH A DEVICE
CH694020A5 (en) * 2000-03-01 2004-06-15 Agm Jactex Ag Shedding device for weaving machines.
FR2815047B1 (en) * 2000-10-06 2003-02-07 Staubli Sa Ets HANGING DEVICE BETWEEN A STRING FRAME AND A LEVER AND WEAVING MACHINE INCORPORATING SUCH A DEVICE
DE10149970A1 (en) * 2001-10-10 2003-05-08 Dornier Gmbh Lindauer Method for controlling actuation devices of a jacquard device combined with a weaving machine
DE10149969A1 (en) * 2001-10-10 2003-05-08 Dornier Gmbh Lindauer Method for controlling the actuation devices of a jacquard device combined with a weaving machine as a function of the angle of rotation
BE1015048A4 (en) * 2002-07-19 2004-09-07 Wiele Michel Van De Nv DEVICE FOR FIXING OF RETREAT IN HARNESS OF FEATHERS a Jacquard.
AU2003276350A1 (en) * 2002-09-17 2004-04-08 Staubli Faverges Mounting frame and loom fitted with said mounting frame
FR2856705B1 (en) * 2003-06-30 2005-08-05 Staubli Sa Ets ARMOR MECHANICS OF THE JACQUART TYPE, WEAVING EQUIPPED WITH SUCH A MECHANICAL AND METHODS OF ASSEMBLING AND DISASSEMBLING SUCH A MECHANICAL
FR2889728B1 (en) * 2005-08-10 2007-10-05 Staubli Faverges Sca CONNECTOR ASSEMBLY FOR FLUIDIC CIRCUIT
FR2911882B1 (en) * 2007-01-31 2009-05-29 Staubli Faverges Sca DEVICE FOR FORMING THE MOB INCORPORATING ELECTRIC MOTOR BLOCKS AND A WEAVING MACHINE EQUIPPED WITH SUCH A DEVICE.
CN201424542Y (en) * 2009-03-17 2010-03-17 西安滨田特型机械有限公司 Active cam shedding device
FR2972008B1 (en) * 2011-02-25 2013-03-29 Staubli Sa Ets SPACER AND LEVER SEPARATION SUB-ASSEMBLY OF A CROW-FORMING MACHINE, MACHINE COMPRISING SUCH A SUBASSEMBLY, AND MOUNTING METHOD
FR2990958B1 (en) * 2012-05-24 2014-06-13 Staubli Sa Ets CROWN FORMING DEVICE AND WOVEN WEAVING EQUIPPED WITH SUCH A DEVICE
CN203360701U (en) * 2013-07-05 2013-12-25 郑友富 Housing of rotary electronic multi-arm device
CN203320221U (en) * 2013-07-05 2013-12-04 郑友富 Tappet housing of cam shedding device
FR3043097B1 (en) * 2015-10-29 2017-12-22 Staubli Sa Ets ARMOR MECHANICAL COMPRISING A LEVELING DEVICE AND WEAVING COMPRISING AN ARMOR MECHANICAL MECHANICAL

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN107641874B (en) 2020-10-23
FR3054245A1 (en) 2018-01-26
TR201910944T4 (en) 2019-08-21
EP3272918A1 (en) 2018-01-24
FR3054245B1 (en) 2018-08-31
CN107641874A (en) 2018-01-30
BR102017015702A2 (en) 2018-02-06
BR102017015702B1 (en) 2022-11-22
US10287712B2 (en) 2019-05-14
PT3272918T (en) 2019-08-21
US20180023223A1 (en) 2018-01-25

Similar Documents

Publication Publication Date Title
FR2577824A1 (en) DISPOSABLE CARTRIDGE FOR CENTRIFUGAL SEPARATORS
FR2485671A1 (en) TENSIONER ROLLER FOR BELT DRIVES
EP3350483B1 (en) Reduction gear with built-in lubricator for power steering
FR2535815A1 (en) Labyrinth seal for ball bearing mounted spindle
FR2888301A1 (en) SATELLITE CARRIERS FOR PLANETARY TRANSMISSION
CA2527610C (en) Device for removably locking a lid or cover on a frame
FR3082908A1 (en) PULLEY DEVICE FOR TENSIONER OR ROLLER
EP3272918B1 (en) Shed forming machine and loom including such a machine
EP3162933B1 (en) Shedding machine
EP2717437A1 (en) Electromagnetic motor for electronic clock movement with analogue display
EP2492381B1 (en) Spacer and sub-assembly for separating the levers of a shedding machine, machine including such a sub-assembly and installation method
EP0844040B1 (en) Spot welding tip dresser with automatic chip removal
FR2461601A1 (en) REAR BRIDGE HOUSING TYPE BANJO
EP2239358B1 (en) Assembly device, set of two parts assembled by such a device and warp frame of a machine for forming the shed including such a set
EP1775499B1 (en) Lubrication device of at least one gear of a transmission
EP0381557B1 (en) Releasable quick-mounting device for a rotating part, especially a grinding disc
EP0665363B1 (en) Assembling device for joining the tunnel lining segments
EP2135799B1 (en) Structural part of an automobile equipped with paint flow-through openings
EP4095296B1 (en) Shedding machine
EP0659997A1 (en) Improvements in liquid filter boxes for engines
EP1649472B1 (en) Electromagnetic valve, method for attaching a solenoid to said electromagnetic valve, and method for detaching the solenoid from this electromagnetic valve
EP0475867B1 (en) Washer-door for a massaging machine
FR2924477A3 (en) PROTECTIVE DEVICE FOR A BEARING OF A TRANSMISSION SHAFT MOUNTED IN A RELAY BEARING
FR2989126A1 (en) ASSEMBLY FOR A STARTER DEVICE
FR2664346A1 (en) Gearing casing, particularly for gearing with straight-cut gears/worms, or worm gears

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180703

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: D03C 5/00 20060101ALI20181115BHEP

Ipc: D03C 1/14 20060101AFI20181115BHEP

INTG Intention to grant announced

Effective date: 20181214

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602017003864

Country of ref document: DE

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Ref document number: 3272918

Country of ref document: PT

Date of ref document: 20190821

Kind code of ref document: T

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20190805

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190515

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190815

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190816

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190815

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1133552

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602017003864

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20200218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190721

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190721

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190915

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20170721

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190515

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230509

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230727

Year of fee payment: 7

Ref country code: CH

Payment date: 20230802

Year of fee payment: 7

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20240721

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20240721

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20250702

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20250729

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20250711

Year of fee payment: 9

Ref country code: IT

Payment date: 20250721

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20250728

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20250725

Year of fee payment: 9