WO2008038120A1 - A blade unit for panel saw machines for panels made of wood or similar materials - Google Patents
A blade unit for panel saw machines for panels made of wood or similar materials Download PDFInfo
- Publication number
- WO2008038120A1 WO2008038120A1 PCT/IB2007/002827 IB2007002827W WO2008038120A1 WO 2008038120 A1 WO2008038120 A1 WO 2008038120A1 IB 2007002827 W IB2007002827 W IB 2007002827W WO 2008038120 A1 WO2008038120 A1 WO 2008038120A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flange
- blade
- pin
- hole
- unit according
- 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.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
- B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
- B27B5/32—Devices for securing circular saw blades to the saw spindle
Definitions
- This invention relates to a blade unit for panel saw machines for panels made of wood or similar materials.
- This blade unit forms part of panel saw machines which essentially comprise: a main frame comprising a first horizontal table; means for advancing the panels along a defined feed line and usually consisting of a crossbar mobile in parallel along said first horizontal table and equipped with clamps used for gripping the panel or panels to be sawn; a straight cutting unit or cutting front transversal to the feed line and comprising a beam that mounts one or two hold-down bars for pressing down on the panels, and a carriage, positioned near the beam and equipped with at least one mobile circular blade designed to cut the panels along a line transversal to the beam and usually passing between the hold-down bars; a second table, positioned in front of the cutting front, downstream of the cutting unit relative to the direction of panel feed on the first horizontal table, for supporting the panels and/or the respective panel lengths obtained by cutting.
- the above mentioned blade unit which this specification refers to in particular, comprises at least one motor-driven blade hub equipped with a pair of facing flanges and enclosing the circular saw blade.
- the first flange is rigidly connected to (or made as a single part with) the hub, while the second flange is equipped with means for locking/releasing it to/from the first flange when the blade is changed.
- these locking/releasing means comprise a socket of the type for a bayonet coupling in the blade hub and a series of fixing pins on the second flange that fit into matching holes in the first flange.
- the pins are held in the coupled position in the first flange by respective spring means located inside the holes in the flange body. Inside the flange body, there is also a chamber or conduit equipped with a diaphragm that is in contact with the spring means.
- the conduit can be made to communicate with the outside through a sealed connection so that a fluid (usually air) can, when necessary, be pumped into it to compress the spring elements and thus move the pins out of the holes in the second flange to allow the second flange to be turned and disengaged from the first flange to change the blade.
- a fluid usually air
- the aim of this invention is to overcome the above mentioned disadvantages by providing a blade unit for panel saw machines for panels made of wood or similar materials that has an extremely simplified constructional architecture and blade lock/release system without reducing machine quality and operating safety.
- this aim is achieved by a blade unit for panel saw machines, especially a blade unit for panel saw machine for panels made of wood or similar materials, comprising the technical characteristics described in one or more of the appended claims.
- Figure 1 is a schematic top plan view of a panel saw machine for panels made of wood or similar materials equipped with a blade unit according to the invention
- FIGs 3, 4 and 5 are side views with some parts in cross section and others cut away in order to better illustrate others, showing the blade unit in three different configurations, with the blade in locked, pre-released and released conditions, respectively.
- the blade unit according to the invention is used on panel saw machines 1 for cutting panels 4 made of wood or similar materials, illustrated schematically in Figure 1.
- This panel saw machine 1 essentially comprises: a horizontal table 5 for supporting the panels 4; means 50 for advancing the panels 4 along a feed line A and mobile in a direction parallel to and along the horizontal table 5 (illustrated schematically with gripper clamps 50p, being of customary type and not strictly relevant to this invention); and a blade unit 2 comprising a carriage 3 that moves along a panel 4 cutting direction T transversal to the feed direction A in which the panels 4 are advanced along the table 5 (see also Figure 2). On the mobile carriage 3 there is a power-driven shaft 7 to which at least one circular saw blade 6 is rotatably connected.
- the circular blade 6 is mounted on a block 8 comprising a first and a second flange 9 and 10, facing each other, for holding the blade 6 which is positioned between the flanges 9 and 10 themselves.
- the first flange 9 revolves as one with the power-driven shaft 7, while the second flange 10 is equipped with means 11 for locking and releasing the blade 6 from the shaft 7 and acting between the two flanges 9 and 10 in such a way as to move them away and towards each other in such a way as to disengage and engage them to allow the blade 6 to be changed.
- the locking and releasing means 11 comprise: a first central pin 12 housed in the second flange 10 and affording a protruding end 12a that can be screwed into a first central hole 13 in the first flange 9; manual operating means 14, positioned on the second flange 10, acting between the second flange 10 and the first central pin 12 and designed to enable the second flange 10 and the first central pin 12 to move axially relative to each other in such a way as to define two stable end limit positions where: the second flange 10 is partly detached from the first flange 9 (see arrows F, Figure 4) in such way that the first pin 12 can be disengaged manually from the first flange 9 (see arrows Fl, Figure 5); and the second flange 10 is moved manually into a safety position in contact with the blade 6 (see arrows F2, Figure 4) after the first pin 12 has been manually coupled with the first flange 9 (see arrow F3, Figure 3).
- the blade unit 2 may comprise safe positioning means 25 acting between the operating means 14 and the second flange 10 and designed, respectively: to enable the operating means 14 to be manually released from the second flange 10 so that the latter can be moved to the partly detached position; and snap the operating means 14 into place on the second flange 10 when the second flange 10 is moved into contact with the blade 6.
- safe positioning means 25 acting between the operating means 14 and the second flange 10 and designed, respectively: to enable the operating means 14 to be manually released from the second flange 10 so that the latter can be moved to the partly detached position; and snap the operating means 14 into place on the second flange 10 when the second flange 10 is moved into contact with the blade 6.
- the first central pin 12 is divided into a first portion 12b and the above mentioned threaded end 12a.
- the first portion 12b is housed in a second hole 15 in the second flange 10 and held rotationally in place by a key 16 positioned between the first portion 12b and an annular contact element 17 for closing the second hole 15 and which is integral with the second flange 10.
- the threaded end 12a protrudes from the contact element 17.
- the first spring means 21 enable the second flange 10 to be partially detached from the first flange 9 when a manual screwing movement is imparted to the third flange 18 (see arrow F18) causing the third and second flanges 18 and 10 to move axially relative to each other in such a way as to compress the first spring means 21.
- an interposed key 16 housed partially in a matching widened part 17b of the central hole 17a in the annular contact element 17 enabling the first pin 12 and the second flange 10 to revolve as one with the power-driven shaft 7 and, when required, letting the third and second flanges 18 and 10 to slide axially relative to each other while keeping the first pin 12 in a stable position.
- the above mentioned positioning means 25 comprise: an element or button 22 housed in a fourth radial hole 23 in the body 24 of the second flange 10 and open at the top where there is a respective fifth radial through hole 26 made in the third flange 18 allowing the end of the button 22 to protrude when the second flange 10 is moved into contact with the blade 6 and the second and third flanges 10 and 18 are locked to each other; second spring means 27 positioned between the button 22 and the bottom of the fourth hole 23 in the second flange 10, said second spring means 27 being designed to be compressed by external manual action (see arrow F27), enabling the protruding part of the button 22 to move into the third flange 18 so that the third flange 18 can be activated in such a way as to partly detach the second flange 10 from the first flange 9 as described above.
- the blade 6 may turn in a first cutting direction V and the above mentioned protruding part 12a of the first pin 12 may be threaded so that it can be screwed into the first hole 13 in the opposite direction Vl to the direction of rotation V of the blade 6.
- the second pin 19 of the third flange 18 may be threaded in such a way as to be screwed into the third hole 20 in a direction V2 (to achieve the detached configuration) that is the same as the direction Vl in which the protruding end 12a of the first pin 12 is screwed.
- the blade 6 can be released manually in the following steps: pressing the button 22 (arrow F27) to disengage the third flange 18; manually screwing the third flange 18 in direction V2 to cause the first pin 12 and the second flange 10 to move axially relative to each other (arrow F) so that the latter is detached from the first flange 9 ( Figure 4); manually unscrewing the first pin 12 from the first hole 13 by gripping the body 24 of the second flange 10 ( Figure 5).
- the blade 6 can be removed from the first flange 9 and replaced with a new blade 6.
- a blade unit made as described above fully achieves the above mentioned aims thanks to blade lock/release components with an extremely simple structure.
- the operating safety of the blade unit is not reduced, thanks also to the button which, besides providing the end position of the third flange, prevents unwanted movements between the second and third flanges.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Abstract
A blade unit for panel saw machines comprises a carriage (3) that moves along a cutting direction (T); a circular saw blade (6) connected to a power-driven shaft (7) positioned on the carriage (3); a blade (6) mounting block (8) comprising a first flange (9) and a second flange (10), facing each other; the first flange (9) revolves as one with the power-driven shaft (7) and the second flange (10) is equipped with means (11) for locking and releasing the blade (6) from the shaft (7) and comprising a first central pin (12) housed in the second flange (10) and affording a protruding end (12a) that can be screwed into a first hole central hole (13) in the first flange (9), and manual operating means (14) positioned on the second flange (10) and acting between the second flange (10) and the first central pin (12) in such a way as to enable the second flange (10) to move axially relative to the first central pin (12) so as to define two end limit positions where the second flange (10) is partly detached from the first flange (9) so that the first pin (12) can be disengaged manually from the first flange (9) and where the second flange (10) is moved manually into contact with the blade (6) after the first pin (12) has been manually coupled with the first flange (9).
Description
Description
A blade unit for panel saw machines for panels made of wood or similar materials
Technical Field
This invention relates to a blade unit for panel saw machines for panels made of wood or similar materials.
Background Art
This blade unit forms part of panel saw machines which essentially comprise: a main frame comprising a first horizontal table; means for advancing the panels along a defined feed line and usually consisting of a crossbar mobile in parallel along said first horizontal table and equipped with clamps used for gripping the panel or panels to be sawn; a straight cutting unit or cutting front transversal to the feed line and comprising a beam that mounts one or two hold-down bars for pressing down on the panels, and a carriage, positioned near the beam and equipped with at least one mobile circular blade designed to cut the panels along a line transversal to the beam and usually passing between the hold-down bars; a second table, positioned in front of the cutting front, downstream of the cutting unit relative to the direction of panel feed on the first horizontal table, for supporting the panels and/or the respective panel lengths obtained by cutting.
Over time, these panel saw machines have been continually improved in all the parts described above in order to increase productivity, enhance panel cutting quality and make machine operation safer.
Thus, if on the one hand targets of high quality have been achieved, on the other, machine purchase and maintenance costs have risen proportionately. In practice, increased costs have restricted the range of potential machine buyers to companies with high productivity requirements that can quickly amortise the high initial cost of the machines, while individual craftsmen, one-person concerns and medium- to low-productivity companies cannot in most cases afford to buy machines of this kind.
For example, the above mentioned blade unit, which this specification refers to in particular, comprises at least one motor-driven blade hub equipped
with a pair of facing flanges and enclosing the circular saw blade.
The first flange is rigidly connected to (or made as a single part with) the hub, while the second flange is equipped with means for locking/releasing it to/from the first flange when the blade is changed. In a prior art solution, these locking/releasing means comprise a socket of the type for a bayonet coupling in the blade hub and a series of fixing pins on the second flange that fit into matching holes in the first flange.
The pins are held in the coupled position in the first flange by respective spring means located inside the holes in the flange body. Inside the flange body, there is also a chamber or conduit equipped with a diaphragm that is in contact with the spring means.
The conduit can be made to communicate with the outside through a sealed connection so that a fluid (usually air) can, when necessary, be pumped into it to compress the spring elements and thus move the pins out of the holes in the second flange to allow the second flange to be turned and disengaged from the first flange to change the blade.
This solution for locking and releasing the blade, although very effective and safe, is not free of disadvantages, mainly because a hydraulic/pneumatic system must always be installed near the machine to operate the blade lock/release system and because the body of the mobile flange made in this way is relatively heavy and not easy for the operator to handle: all of this adds up to making the blade unit more expensive, requiring accessory units to operate it and more time to change the blade.
Disclosure of the Invention
The aim of this invention is to overcome the above mentioned disadvantages by providing a blade unit for panel saw machines for panels made of wood or similar materials that has an extremely simplified constructional architecture and blade lock/release system without reducing machine quality and operating safety.
According to the invention, this aim is achieved by a blade unit for panel saw machines, especially a blade unit for panel saw machine for panels made of wood or similar materials, comprising the technical characteristics described in one or more of the appended claims.
Brief Description of the Drawings
The technical features of the invention, with reference to the above aims,
are clearly described in the claims below and its advantages are more apparent from the detailed description which follows, with reference to the accompanying drawings which illustrate a preferred embodiment of the invention provided merely by way of example without restricting the scope of the inventive concept, and in which:
Figure 1 is a schematic top plan view of a panel saw machine for panels made of wood or similar materials equipped with a blade unit according to the invention;
Figure 2 illustrates the blade unit according to the invention in a view from P shown in Figure 1, and with some parts in cross section in order to better illustrate others;
Figures 3, 4 and 5 are side views with some parts in cross section and others cut away in order to better illustrate others, showing the blade unit in three different configurations, with the blade in locked, pre-released and released conditions, respectively.
Detailed Description of the Preferred Embodiments of the Invention
With reference to the accompanying drawings, especially Figure 1, the blade unit according to the invention is used on panel saw machines 1 for cutting panels 4 made of wood or similar materials, illustrated schematically in Figure 1.
This panel saw machine 1 essentially comprises: a horizontal table 5 for supporting the panels 4; means 50 for advancing the panels 4 along a feed line A and mobile in a direction parallel to and along the horizontal table 5 (illustrated schematically with gripper clamps 50p, being of customary type and not strictly relevant to this invention); and a blade unit 2 comprising a carriage 3 that moves along a panel 4 cutting direction T transversal to the feed direction A in which the panels 4 are advanced along the table 5 (see also Figure 2). On the mobile carriage 3 there is a power-driven shaft 7 to which at least one circular saw blade 6 is rotatably connected.
The circular blade 6 is mounted on a block 8 comprising a first and a second flange 9 and 10, facing each other, for holding the blade 6 which is positioned between the flanges 9 and 10 themselves. The first flange 9 revolves as one with the power-driven shaft 7, while the second flange 10 is equipped with means 11 for locking and releasing the blade 6 from the shaft 7 and acting between the two flanges 9 and 10 in such a way as to
move them away and towards each other in such a way as to disengage and engage them to allow the blade 6 to be changed.
As clearly shown also in Figures 3 to 5, the locking and releasing means 11 comprise: a first central pin 12 housed in the second flange 10 and affording a protruding end 12a that can be screwed into a first central hole 13 in the first flange 9; manual operating means 14, positioned on the second flange 10, acting between the second flange 10 and the first central pin 12 and designed to enable the second flange 10 and the first central pin 12 to move axially relative to each other in such a way as to define two stable end limit positions where: the second flange 10 is partly detached from the first flange 9 (see arrows F, Figure 4) in such way that the first pin 12 can be disengaged manually from the first flange 9 (see arrows Fl, Figure 5); and the second flange 10 is moved manually into a safety position in contact with the blade 6 (see arrows F2, Figure 4) after the first pin 12 has been manually coupled with the first flange 9 (see arrow F3, Figure 3).
Further, the blade unit 2 may comprise safe positioning means 25 acting between the operating means 14 and the second flange 10 and designed, respectively: to enable the operating means 14 to be manually released from the second flange 10 so that the latter can be moved to the partly detached position; and snap the operating means 14 into place on the second flange 10 when the second flange 10 is moved into contact with the blade 6. Looking more closely at the technical details, the first central pin 12 is divided into a first portion 12b and the above mentioned threaded end 12a.
The first portion 12b is housed in a second hole 15 in the second flange 10 and held rotationally in place by a key 16 positioned between the first portion 12b and an annular contact element 17 for closing the second hole 15 and which is integral with the second flange 10.
The threaded end 12a protrudes from the contact element 17.
Again with reference to Figures 3 to 5, the operating means 14 comprise: a lid-like control element or third flange 18 located at the free end of the flange 10 furthest away from the blade 6; the third flange 18 is associated with the second flange 10 through a second pin 19 that can be screwed into a third through hole 20 made in the second flange 10 and leading into the second hole 15 in the second flange 10;
first spring means 21 (for example, a Belleville washer) located inside the second hole 15, coaxial with and partly surrounding the first pin 12, and positioned between the second pin 19 and the above mentioned annular element 17 that closes the second hole 15; between the second pin 19 and the spring means 21 there is an interposed diaphragm 19a which enables a uniform thrust force to be applied to the spring 21.
The first spring means 21 enable the second flange 10 to be partially detached from the first flange 9 when a manual screwing movement is imparted to the third flange 18 (see arrow F18) causing the third and second flanges 18 and 10 to move axially relative to each other in such a way as to compress the first spring means 21.
In other words, the spring 21, when it is not compressed by the second pin 19, pushes the second flange 10 axially towards the blade 6 and also acts as a spacer on the third flange 18. As mentioned above, between the annular contact element 17 and the second pin 19 there is an interposed key 16 housed partially in a matching widened part 17b of the central hole 17a in the annular contact element 17 enabling the first pin 12 and the second flange 10 to revolve as one with the power-driven shaft 7 and, when required, letting the third and second flanges 18 and 10 to slide axially relative to each other while keeping the first pin 12 in a stable position.
The above mentioned positioning means 25 (see Figure 3) comprise: an element or button 22 housed in a fourth radial hole 23 in the body 24 of the second flange 10 and open at the top where there is a respective fifth radial through hole 26 made in the third flange 18 allowing the end of the button 22 to protrude when the second flange 10 is moved into contact with the blade 6 and the second and third flanges 10 and 18 are locked to each other; second spring means 27 positioned between the button 22 and the bottom of the fourth hole 23 in the second flange 10, said second spring means 27 being designed to be compressed by external manual action (see arrow F27), enabling the protruding part of the button 22 to move into the third flange 18 so that the third flange 18 can be activated in such a way as to partly detach the second flange 10 from the first flange 9 as described above.
Obviously, when the blade 6 has to be locked in place again, turning the third flange 18 in the opposite direction causes the button 22 to be aligned coaxially with the fifth hole 26 in such a way that the button 22 returns to its protruding configuration.
Preferably, but without limiting the scope of the invention, the blade 6 may turn in a first cutting direction V and the above mentioned protruding part 12a of the first pin 12 may be threaded so that it can be screwed into the first hole 13 in the opposite direction Vl to the direction of rotation V of the blade 6. Further, the second pin 19 of the third flange 18 may be threaded in such a way as to be screwed into the third hole 20 in a direction V2 (to achieve the detached configuration) that is the same as the direction Vl in which the protruding end 12a of the first pin 12 is screwed.
In other terms, therefore, starting from the blade locked configuration shown in Figure 3, the blade 6 can be released manually in the following steps: pressing the button 22 (arrow F27) to disengage the third flange 18; manually screwing the third flange 18 in direction V2 to cause the first pin 12 and the second flange 10 to move axially relative to each other (arrow F) so that the latter is detached from the first flange 9 (Figure 4); manually unscrewing the first pin 12 from the first hole 13 by gripping the body 24 of the second flange 10 (Figure 5).
At this point, the blade 6 can be removed from the first flange 9 and replaced with a new blade 6.
Locking the blade in place occurs in the same way as described above but in reverse, that is to say, by screwing the first pin 12 in and then unscrewing the third flange 18 until the button 22 protrudes from the fifth hole 26 again.
A blade unit made as described above fully achieves the above mentioned aims thanks to blade lock/release components with an extremely simple structure.
The provision of two coaxial threaded systems, independent of each other, assisted by springs, for locking and releasing the flange makes it possible to screw and unscrew the second flange by hand without using any pneumatic or hydraulic unit.
The operating safety of the blade unit is not reduced, thanks also to the button which, besides providing the end position of the third flange, prevents unwanted movements between the second and third flanges.
The invention described above is susceptible of industrial application and may be modified and adapted in several ways without thereby departing from the scope of the inventive concept. Moreover, all the details of the invention may be substituted by technically equivalent elements.
Claims
1. A blade unit for panel saw machines (1) for panels made of wood or similar materials, the blade unit (2) comprising at least: a carriage (3) that moves along a panel (4) cutting direction (T) transversal to a feed direction (A) in which the panels (4) are advanced along a work table (5); a circular saw blade (6) rotatably connected to a power-driven shaft (7) positioned on the mobile carriage (3). a blade mounting block (8) comprising a first flange (9) and a second flange
(10), facing each other; for holding the blade (6) which is positioned between the flanges (9, 10) themselves; the first flange (9) revolving as one with the power- driven shaft (7) and the second flange (10) being equipped with means (11) for locking and releasing the blade (6) from the shaft (7), and acting between the two flanges (9, 10) in such a way as to move them away and towards each other to disengage and engage them so as to allow the blade (6) to be changed; the blade unit (2) being characterized in that the locking and releasing means (11) comprise at least: a first central pin (12) housed in the second flange (10) and affording a protruding end (12a) that can be screwed into a first central hole (13) in the first flange (9); manual operating means (14), positioned on the second flange (10), acting between the second flange (10) and the first central pin (12) and designed to enable the second flange (10) and the first central pin (12) to move axially relative to each other in such a way as to define two stable end limit positions where: the second flange (10) is partly removed from the first flange (9) in such way that the first pin (12) can be disengaged manually from the first flange (9); and the second flange (10) is moved manually into a safety position in contact with the blade (6) after the first pin (12) has been manually coupled with the first flange (9).
2. The unit according to claim 1, characterized in that it comprises safe positioning means (25) acting between the operating means (14) and the second flange (10) and designed, respectively, to enable the operating means (14) to be manually released from the second flange (10) so that the latter can be moved to the partly detached position; and to snap the operating means (14) into place on the second flange (10) when the second flange (10) is moved into contact with the blade (6).
3. The unit according to claim 1, where the blade (6) turns in a first cutting direction (V), characterized in that the protruding part (12a) of the first pin (12) is threaded so that it can be screwed into the first hole (13) in a direction (Vl) opposite to the direction of rotation (V) of the blade (6).
4. The unit according to claim 1, characterized in that the first, central pin (12) is divided into a first portion (12b) and the threaded end (12a), the first portion (12b) being housed in a second hole (15) in the second flange (10) and held rotationally in place by key means (16) positioned between the first portion (12b) and an annular contact element (17) for closing the second hole (15) and which are integral with the second flange (10); the threaded end (12a) protruding from the contact element (17).
5. The unit according to claim 1, characterized in that the operating means (14) comprise: a lid-like control element or third flange (18) located at the free end of the flange (10) furthest away from the blade (6) and associated with the second flange
(10) through a second pin (19) that can be screwed into a third through hole (20) made in the second flange (10) and leading into the second hole (15) in the second flange (10) itself; first spring means (21) located inside the second hole (15), coaxial with and partly surrounding the first pin (12), and positioned between the second pin (19) and an annular element (17) that closes the second hole (15); the first spring means (21) being designed to allow the second flange (10) to be partially detached from the first flange (9) when a manual screwing movement is imparted to the third flange (18) causing the third flange (18) and the second flange (10) to move axially relative to each other in such a way as to compress the first spring means
(21).
6. The unit according to claim 5, characterized in that between the annular contact element (17) and the second pin (19) there are interposed key means (16) housed partially in at least one matching widened part (17b) of the central hole (17a) in the annular contact element (17) enabling the third flange (18) and the second flange (10) to slide axially relative to each other while keeping the first pin (12) in a stable position.
7. The unit according to claims 2 and 5, characterised in that the positioning means (25) comprise: an element or button (22) housed in a fourth radial hole (23) in the body (24) of the second flange (10) and open at the top where there is a respective fifth radial through hole (26) made in the third flange (18) allowing the end of the button (22) to protrude when the second flange (10) is moved into contact with the blade (6) and the second flange (10) and third flange (18) are locked to each other; second spring means (27) positioned between the button (22) and the bottom of the fourth hole (23) in the second flange (10), said second spring means (27) being designed to be compressed by external manual action, enabling the protruding part of the button (22) to move into the third flange (18) so that the third flange (18) can be activated in such a way as to partly detach the second flange (10) from the first flange (9).
8. The unit according to claim 5, characterized in that the second pin (19) of the third flange (18) is threaded in such a way as to be screwed into the third hole (20) in a direction (V2) that is the same as the direction (Vl) in which the protruding end (12a) of the first pin (12) is screwed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITBO20060674 ITBO20060674A1 (en) | 2006-09-29 | 2006-09-29 | BLADE ASSEMBLY FOR WOODEN PANEL SEALING OR ASSIMILABLE MACHINES. |
| ITBO2006A000674 | 2006-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008038120A1 true WO2008038120A1 (en) | 2008-04-03 |
Family
ID=38961874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2007/002827 Ceased WO2008038120A1 (en) | 2006-09-29 | 2007-09-27 | A blade unit for panel saw machines for panels made of wood or similar materials |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | ITBO20060674A1 (en) |
| WO (1) | WO2008038120A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114473050A (en) * | 2021-12-31 | 2022-05-13 | 中重科技(天津)股份有限公司 | A new type of saw blade locking device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0798064A1 (en) * | 1996-03-28 | 1997-10-01 | HOLZMA-MASCHINENBAU GmbH | Clamping device for disc like tools |
| DE20008945U1 (en) * | 2000-05-22 | 2001-10-04 | HOLZMA Plattenaufteiltechnik GmbH, 75365 Calw | Bearing device for a rotating, rotationally symmetrical tool |
| EP1250989A2 (en) * | 2000-09-08 | 2002-10-23 | Black & Decker Inc. | Clutch assembly and clamp mechanism for rotary tool disc |
| EP1362656A1 (en) * | 2002-05-15 | 2003-11-19 | REICH SPEZIALMASCHINEN GmbH | Processing device for machining of panels |
| EP1375094A1 (en) * | 2002-06-18 | 2004-01-02 | Black & Decker Inc. | Clamp mechanism and clutch assembly for rotary tool disc |
| WO2006024058A1 (en) * | 2004-09-03 | 2006-03-09 | Panhans Maschinenbau Gmbh | Machining device, particularly plate cutting device |
-
2006
- 2006-09-29 IT ITBO20060674 patent/ITBO20060674A1/en unknown
-
2007
- 2007-09-27 WO PCT/IB2007/002827 patent/WO2008038120A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0798064A1 (en) * | 1996-03-28 | 1997-10-01 | HOLZMA-MASCHINENBAU GmbH | Clamping device for disc like tools |
| DE20008945U1 (en) * | 2000-05-22 | 2001-10-04 | HOLZMA Plattenaufteiltechnik GmbH, 75365 Calw | Bearing device for a rotating, rotationally symmetrical tool |
| EP1250989A2 (en) * | 2000-09-08 | 2002-10-23 | Black & Decker Inc. | Clutch assembly and clamp mechanism for rotary tool disc |
| EP1362656A1 (en) * | 2002-05-15 | 2003-11-19 | REICH SPEZIALMASCHINEN GmbH | Processing device for machining of panels |
| EP1375094A1 (en) * | 2002-06-18 | 2004-01-02 | Black & Decker Inc. | Clamp mechanism and clutch assembly for rotary tool disc |
| WO2006024058A1 (en) * | 2004-09-03 | 2006-03-09 | Panhans Maschinenbau Gmbh | Machining device, particularly plate cutting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114473050A (en) * | 2021-12-31 | 2022-05-13 | 中重科技(天津)股份有限公司 | A new type of saw blade locking device |
Also Published As
| Publication number | Publication date |
|---|---|
| ITBO20060674A1 (en) | 2008-03-30 |
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