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WO2002011584A1 - Dispositif de modification de position et de maintien du reglage de pieces, par exemple de supports de lordose, de meubles pour s'asseoir ou pour s'etendre - Google Patents

Dispositif de modification de position et de maintien du reglage de pieces, par exemple de supports de lordose, de meubles pour s'asseoir ou pour s'etendre Download PDF

Info

Publication number
WO2002011584A1
WO2002011584A1 PCT/AT2001/000259 AT0100259W WO0211584A1 WO 2002011584 A1 WO2002011584 A1 WO 2002011584A1 AT 0100259 W AT0100259 W AT 0100259W WO 0211584 A1 WO0211584 A1 WO 0211584A1
Authority
WO
WIPO (PCT)
Prior art keywords
wedge
rotating part
changing
housing
locking
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
Application number
PCT/AT2001/000259
Other languages
German (de)
English (en)
Inventor
Alfred Stadlbauer
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.)
Schukra Geratebau GmbH
Original Assignee
Schukra Geratebau GmbH
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 Schukra Geratebau GmbH filed Critical Schukra Geratebau GmbH
Priority to AU2001276150A priority Critical patent/AU2001276150A1/en
Publication of WO2002011584A1 publication Critical patent/WO2002011584A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/225—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
    • B60N2/2254—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms provided with braking systems

Definitions

  • Device for changing the position and determining parts e.g. B. lumbar supports, of furniture for sitting and / or lying
  • the invention relates to a device for changing the position and detecting parts, eg. B. lumbar supports from
  • Seating and reclining furniture have swiveling or archable parts o in order to adapt the furniture to the personal requirements of the user.
  • a handwheel is usually provided in the region of the swivel axis, via which a gear transmission is actuated 5, so that the backrest can be moved forwards and backwards.
  • the gear transmission has a translation, so that the handwheel must be rotated through a much larger angle than the resulting pivoting movement of the backrest. Self-locking is achieved at the same time as a result of this gearwheel translation, so that the position of the backrest, once specified, can be maintained.
  • a lumbar support in the backrest which in Frame of the backrest is attached.
  • a simplest embodiment of such a lumbar support can be formed, for example, by a plastic plate with a varying thickness, the two ends being movable relative to one another. The closer the two ends are moved to each other, the greater a desired curvature.
  • a plate can for example be moved up and down on a guide, so that in addition to the curvature with respect to a straight line, the support can also be arranged at the desired height. The different curvature is preferred over one
  • the present invention is based.
  • the present invention has for its object to provide a device for adjusting and fixing parts of seating and / or reclining furniture, the actuator only having to perform a slight movement, in particular pivoting movement, in order to bring about a greater change in position, the actuator with low effort can be operated and a position fix automatically and also against highest forces. Furthermore, the device should be designed with as few parts as possible in order to increase the functional reliability.
  • the inventive device for changing the position and detecting parts for. B. lumbar supports, of furniture for sitting and / or lying, z. B. car seats, patient beds, with a housing with an inner wall, which is supported on part of the piece of furniture, a rotating part being arranged in the housing, optionally being mounted, which is non-positively connected to one, in particular the, part of the piece of furniture, and the Turned part in and to the housing about an axis of rotation via an actuator, eg. B.
  • lever, handwheel, electric motor is relatively rotatable and can be supported in the functional position on the housing in an un- and / or indirectly rotationally inhibited manner, consists essentially in that at least one circumferential part of the inner wall of the housing is rotationally symmetrical, based on the axis of rotation, and At least one wedge is arranged between the rotating part and the circumferential part of the inner wall, which has an outer surface that is adjacent to or is adjacent to the inner wall, which is essentially identical or negatively identical to the circumferential part of the inner wall and at least one wedge surface the wedge (s), which is adjacent to the axis of rotation, corresponds to the shape and position of a surface which is identical or negative identical to a wedge surface of the rotating part, and the wedge surfaces can be arranged at least partially at a distance or at least partially in contact with one another, wherein one connected to the actuator, at least partially in the Housing arranged, driver non-positively in contact with the wedge (s), in particular tapered end of the wedge (s), or rotating part can
  • the forces can be introduced into the housing be, the part, based on the housing, is fixed in position. Due to the non-positive connection of the rotating part with the part of the piece of furniture, for example a lumbar support or a further part of the piece of furniture, for example when the actual seat part and backrest of the seat are combined, a relative movement can be carried out, with a rotating movement being exerted via the rotating part can, which can cause either a pivoting movement or a relative movement of the tension element in the envelope tube of the Bowden cable. By placing a wedge between the rotating part of furniture, for example via an envelope tube of a Bowden cable.
  • the rotating part and the inner wall of the housing can be wedged onto the inner wall, whereby the forces can be transmitted not only along a line but also along a surface to the inner wall, so that particularly large forces can be absorbed.
  • Wedge corresponds approximately to the wedge surface of the turned part, so that with the slightest movement, the turned part is wedged over the wedge on the inner wall of the housing. Because the wedge surfaces of the wedge and the rotating part can be arranged at least partially in contact with one another and at a distance from one another, either wedging of the rotating part or free movement of the same in the housing can be achieved.
  • the driver which can be arranged in a force-fitting manner in contact with the tapered end of the wedges or the rotating part, can release the wedging of the rotating part in both directions of rotation.
  • both the wedge and the rotating part have wedge surfaces which can be made particularly large so that the forces are transmitted along the surfaces can, furthermore, a factory manufacture of the device can be carried out particularly easily. If the wedge surface of the wedge lies in a tangential plane on a rotary body, the axis of rotation of which is provided parallel to and outside the axis of rotation, a particularly effective wedging can also take place with only one wedge surface of the wedge and of the rotating part with one plane.
  • both the wedges and the turned part can be manufactured particularly easily, furthermore relatively large surfaces are available for the transmission of force and a factory-made combination is particularly simple.
  • the turned part has at least two, in particular three, wedge surfaces, then a symmetrical loading of the turned part can be achieved, as a result of which no asymmetrical loading of forces occurs and thus a long-term plastic deformation of the turned part can be avoided.
  • the part (s) and / or the rotating part has surfaces that cooperate with an actuating surface or tangential plane to the actuating surface that is guided by the axis of rotation of the driver, which can be brought into contact with one another close to the axis of rotation the introduction of force of the driver into the part (s) or rotating part is carried out in such a way that the slightly elastic deformation thereof facilitates loosening of the wedging. If axially and radially extending cavities are provided between the rotating part and the tapered end of the wedge (s), these parts can be moved relatively easily.
  • a tension element in particular wire, is fixed in the turned part and an envelope tube to the tension element is fixed in the housing, a particularly advantageous and simple actuation via a Bowden cable is made possible.
  • the action partner can have the desired coefficient of friction on the outer surface of the wedge without having to have the appropriate tensile and compressive strength.
  • housing and the rotating part are made of fiber-reinforced plastic, high dimensional stability can be achieved with low weight.
  • the wedge (s) is / are constructed with fiber-reinforced plastic, then a wedge can be obtained which has a particularly high compressive strength and whose elastic deformation can be kept low.
  • an elastic reduction of the play in both directions of the wedging can be achieved in a simple manner.
  • a rubber-elastic element in particular on the surface, is provided between at least one extension of the rotating part and a surface at the enlarged end of the wedge (s), a force provided by the rubber elasticity can be applied
  • the actuating member is a lever which can be non-positively connected to the driver via a toothing, a particularly small play between the turned part and the wedges can be maintained, so that no additional consideration of the play when adjusting the wedge is required.
  • the rotating part and not the housing is non-positively connected to one, in particular the, part of the piece of furniture, the introduction of the forces into the housing is only carried out indirectly via the rotating part and the wedges.
  • 1 is an exploded view of the device for changing position and locking
  • FIG. 2 is a top view of the device of FIG. 1, partially in section, 3 the housing in a view from below,
  • FIG. 5 is a view of the driver from below with a partial section along the line V-V of FIG. 6,
  • Fig. 9 is a view of the rotating part from below and
  • the housing cover in a view from below.
  • the device shown in FIGS. 1 and 2 for changing the position and locking of parts has a lower housing part 1 and a housing cover 2.
  • the lower housing part 1 has a peripheral part 15 of the wall 3, which is rotationally symmetrical with respect to an axis of rotation 8 of the rotating part 5.
  • a ring 4 which is constructed with polyurethane and has a particularly high coefficient of friction, bears against this circumferential wall.
  • the rotating part 5 is also mounted, in which the tension element, not shown, is anchored, whereas the casing for the tension element is supported in the housing bottom part 1.
  • the three wedges 6, which are provided between the ring 4 and the rotating part 5, are formed separately from one another and are used in the
  • the driver 7 has extensions 11 which can be brought into abutment with the wedges 6 or the rotating part 5.
  • the lower housing part 1 On its side facing the axis of rotation 8 of the rotating part 5, the lower housing part 1 has a circumferential part 15 of the wall 3 which is rotationally symmetrical with respect to the axis of rotation 8. A ring 4 bears against the same. This ring also has a circumferential, rotationally symmetrical surface.
  • the frictional connection between the ring 4 and the peripheral part 3 of the wall can optionally be increased by a toothing 9, as shown in a partial section.
  • the rotating part 5 (FIGS. 7 to 9) has wedge surfaces 21 which are cylindrical, the axis of the cylinder being arranged outside the axis of rotation 8 of the rotating part 5.
  • the extensions 11 of the driver 7 are provided with a soft elastic rubber jacket 12, whereby the play between the tapered end 33 of the wedges 6 and the extensions 24 can be reduced (Fig. 2). If the rotating part is rotated by itself, wedging occurs via the wedges, which can be released in any direction by the driver, since either the wedges 6 or the rotating part 5 separate them from one another.
  • Fig. 3 the lower housing part 1 is shown, which has openings 13 through which a tension element, not shown, can be inserted into the rotating part 5.
  • a tension element not shown
  • two different openings 13 are provided, so that the housing on both left as well as the right side of a piece of furniture, e.g. B. car seat can be arranged.
  • the envelope tube, not shown, of a Bowden cable is supported in the receptacles 14.
  • the ring 4 Fig. 4
  • ring 4 which with polyurethane in contrast to
  • the driver 7 shown in FIGS. 5 and 6 has extensions 11 in the form of cylindrical or rectangular in cross section
  • Pins that, as shown in FIG. 2, can have a soft rubber-elastic coating 12.
  • a toothing 16 is provided, in which a tooth was not provided, so that the lever (not shown) can only be attached in one position.
  • Other means such as a motor or the like, can also be provided for actuation.
  • the driver further has stops 17, 18, which cooperate with corresponding stops 19, 20 of the housing cover (FIG. 10) and thus restrict the movement of the furniture part in both directions.
  • the rotary part 5 shown in FIGS. 7, 8, 9 has wedge surfaces 21 which are cylindrical, the center of the cylinder outside the axis of rotation 8 of the
  • Rotating part are arranged.
  • the corresponding wedge surfaces 23 of the wedges 6 are shown in FIG. 2.
  • the wedges have surfaces 10, which with the
  • the rotating part has extensions 24 which, as can be seen in FIG. 2, cooperate in the cavities 31 with the extensions 11 of the driver 7.
  • the rotating part 5 has on its underside, as shown in FIG. 9, particularly clearly It can be seen from a guide surface 25, at the end of which an enlarged head part 26 is provided, on which the pulling element is guided or the head is arranged during the rotational movement.
  • the housing cover 2 shown in FIG. 10 has stops 19 and 20 which cooperate with the stops 17 and 18 of the driver 7.
  • the surfaces 28 of the rotating part and 29 at the tapered end 33 of the wedge, which cooperate with the actuating surface 30 of the extension 11, are arranged so as to be offset in relation to the radial that the contact between the extensions and the surfaces is close to the axis of rotation.
  • Rubber-elastic elements can be arranged in the cavities 32 between a surface 34 at the enlarged end 35 of the wedges 6 and the extensions 24 of the rotating part 5 (FIGS. 1 and 2). In the embodiment shown, the surfaces 34 are at the enlarged end 35 of the wedge with the rubber-elastic
  • the housing can be rigidly connected to the fixed part, whereas the rotating part or possibly a part carrying the wedges is connected to the other part.
  • the axis of rotation 8 then corresponds to the axis of rotation of the head or foot part or also the backrest. If only parts, for example a lumbar support in a backrest, are to be changed, it is only necessary to connect the housing to part of the piece of furniture, for example using an enveloping hose, whereas, for example, the other end of the part, e.g. B. the lumbar support is connected to the tension element, ie a wire.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

Dispositif de modification de position et de maintien du réglage de pièces, par exemple de supports de lordose, de meubles pour s'asseoir ou pour s'étendre, qui comporte un boîtier (1, 2) dans lequel est située une pièce rotative (5). En position fonctionnelle, ladite pièce rotative peut être appuyée sur le boîtier (1, 2) de manière telle que cette position l'empêche directement ou indirectement de tourner. Au moins un coin (6) est placé entre la pièce rotative (7) et la paroi interne (3) du boîtier.
PCT/AT2001/000259 2000-08-07 2001-07-27 Dispositif de modification de position et de maintien du reglage de pieces, par exemple de supports de lordose, de meubles pour s'asseoir ou pour s'etendre Ceased WO2002011584A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001276150A AU2001276150A1 (en) 2000-08-07 2001-07-27 Device for modifying the position of and fixing in place parts, e.g. lordosis supports, of furniture for sitting and/or lying down

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1364/2000 2000-08-07
AT13642000A AT409711B (de) 2000-08-07 2000-08-07 Vorrichtung zum lageverändern und feststellen von teilen, z.b. lordosenstützen, von möbeln zum sitzen und/oder liegen

Publications (1)

Publication Number Publication Date
WO2002011584A1 true WO2002011584A1 (fr) 2002-02-14

Family

ID=3688156

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2001/000259 Ceased WO2002011584A1 (fr) 2000-08-07 2001-07-27 Dispositif de modification de position et de maintien du reglage de pieces, par exemple de supports de lordose, de meubles pour s'asseoir ou pour s'etendre

Country Status (3)

Country Link
AT (1) AT409711B (fr)
AU (1) AU2001276150A1 (fr)
WO (1) WO2002011584A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003043847A1 (fr) * 2001-11-22 2003-05-30 Faurecia Autositze Gmbh & Co. Kg Armature de reglage d'un siege de voiture, notamment armature de reglage de l'inclinaison du dossier d'un tel siege
US6637575B2 (en) 2001-10-03 2003-10-28 L & P Property Management Company Apparatus and method for thin profile ratchet actuator
US6688443B2 (en) 2001-11-07 2004-02-10 L & P Property Management Company Apparatus and method for double clutch actuator
US6691851B2 (en) 2001-10-03 2004-02-17 L & P Property Management Company Apparatus and method for ratchet actuator
US6971719B2 (en) 2003-03-21 2005-12-06 L & P Property Management Company Clutch actuator surface apparatus and method
US7329199B2 (en) 2004-02-06 2008-02-12 Schukra Of North America In-line actuator apparatus and method
US7958800B2 (en) 2004-07-15 2011-06-14 Schukra-Geratebau Ag Actuation device
CN107920695A (zh) * 2015-06-12 2018-04-17 121集团管理有限公司 用于儿童的洗澡浴架

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006022425B4 (de) * 2006-05-13 2008-07-10 GM Global Technology Operations, Inc., Detroit Betätigungsvorrichtung zum Verändern der Lage von Teilen eines Fahrzeugsitzes

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1362011A (en) * 1919-04-10 1920-12-14 James B Kirby Clutch
DE4321985C1 (de) 1993-07-01 1995-01-12 Ameu Management Corp Verstellvorrichtung in einem Sitz für eine in einer mit dem Sitz verbindbaren Lehne angeordnete Becken- und/oder Lordosenstütze mit einer sie verbindenden Bowdenzuganordnung
EP0434660B1 (fr) 1989-12-18 1995-05-03 Berndorf Automotive Produkte Ges.m.b.H. Support réglable anatomiquement
US5651584A (en) * 1995-04-24 1997-07-29 L & P Property Management Company Lumbar support structure for automotive vehicle
US5755491A (en) * 1996-01-22 1998-05-26 Bertrand Faure Equipements Sa Hinge mechanism for a vehicle seat, and a seat including such a mechanism
US5871414A (en) * 1995-12-27 1999-02-16 Keiper Recaro Gmbh & Co. Adjusting and fixing device for seats, like automobile seats, in particular for the adjustment of the back rest

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3013304C2 (de) * 1980-04-05 1983-05-11 Keiper Automobiltechnik Gmbh & Co Kg, 5630 Remscheid Stellvorrichtung für Sitze und Fenster, insbesondere von Kraftfahrzeugen
DE3643195A1 (de) * 1986-12-18 1988-06-30 Bayerische Motoren Werke Ag Gelenkbeschlag fuer sitze mit verstellbarer rueckenlehne

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1362011A (en) * 1919-04-10 1920-12-14 James B Kirby Clutch
EP0434660B1 (fr) 1989-12-18 1995-05-03 Berndorf Automotive Produkte Ges.m.b.H. Support réglable anatomiquement
DE4321985C1 (de) 1993-07-01 1995-01-12 Ameu Management Corp Verstellvorrichtung in einem Sitz für eine in einer mit dem Sitz verbindbaren Lehne angeordnete Becken- und/oder Lordosenstütze mit einer sie verbindenden Bowdenzuganordnung
US5651584A (en) * 1995-04-24 1997-07-29 L & P Property Management Company Lumbar support structure for automotive vehicle
US5871414A (en) * 1995-12-27 1999-02-16 Keiper Recaro Gmbh & Co. Adjusting and fixing device for seats, like automobile seats, in particular for the adjustment of the back rest
US5755491A (en) * 1996-01-22 1998-05-26 Bertrand Faure Equipements Sa Hinge mechanism for a vehicle seat, and a seat including such a mechanism

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6637575B2 (en) 2001-10-03 2003-10-28 L & P Property Management Company Apparatus and method for thin profile ratchet actuator
US6691851B2 (en) 2001-10-03 2004-02-17 L & P Property Management Company Apparatus and method for ratchet actuator
US6860374B2 (en) 2001-10-03 2005-03-01 L&P Property Management Company Apparatus and method for ratchet actuator
US6688443B2 (en) 2001-11-07 2004-02-10 L & P Property Management Company Apparatus and method for double clutch actuator
WO2003043847A1 (fr) * 2001-11-22 2003-05-30 Faurecia Autositze Gmbh & Co. Kg Armature de reglage d'un siege de voiture, notamment armature de reglage de l'inclinaison du dossier d'un tel siege
US6971719B2 (en) 2003-03-21 2005-12-06 L & P Property Management Company Clutch actuator surface apparatus and method
US7329199B2 (en) 2004-02-06 2008-02-12 Schukra Of North America In-line actuator apparatus and method
US7958800B2 (en) 2004-07-15 2011-06-14 Schukra-Geratebau Ag Actuation device
CN107920695A (zh) * 2015-06-12 2018-04-17 121集团管理有限公司 用于儿童的洗澡浴架
CN107920695B (zh) * 2015-06-12 2021-08-10 嘉利柴尔控股有限公司 用于儿童的洗澡浴架

Also Published As

Publication number Publication date
ATA13642000A (de) 2002-03-15
AU2001276150A1 (en) 2002-02-18
AT409711B (de) 2002-10-25

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