FR2495800A1 - Adjuster mechanism for motor vehicle seat - uses eccentrically mounted sprocket meshing with internal gears of differing tooth number at end of each member (BR 5.5.81) - Google Patents

Adjuster mechanism for motor vehicle seat - uses eccentrically mounted sprocket meshing with internal gears of differing tooth number at end of each member (BR 5.5.81) Download PDF

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Publication number
FR2495800A1
FR2495800A1 FR8100379A FR8100379A FR2495800A1 FR 2495800 A1 FR2495800 A1 FR 2495800A1 FR 8100379 A FR8100379 A FR 8100379A FR 8100379 A FR8100379 A FR 8100379A FR 2495800 A1 FR2495800 A1 FR 2495800A1
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FR
France
Prior art keywords
plate
shoulder
annular projection
circular
shaft
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FR8100379A
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French (fr)
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Individual
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Individual
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Publication of FR2495800A1 publication Critical patent/FR2495800A1/en
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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
    • B60N2/2252—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 in which the central axis of the gearing lies inside the periphery of an orbital gear, e.g. one gear without sun gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H2001/2881—Toothed gearings for conveying rotary motion with gears having orbital motion comprising two axially spaced central gears, i.e. ring or sun gear, engaged by at least one common orbital gear wherein one of the central gears is forming the output

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

Abstract

The relative inclination of one member (3) relative to another (4) is controllable through small angular increments by the use of an internal sprocket mounted on an eccentric and running between internal gears cut into the ends of each member. The mechanism is particularly applicable to the seat back angle adjuster provided in motor vehicles. The two members (3,4) have a flat circular end. One has a circular recess (5) and a second smaller diameter recess (7) with an internal gear (6) cut into it. The other has a circular plateau (8) with a gear cut inside it, having a different number of teeth to the other gear. A smaller dia. sprocket (12) lies between and meshes with the two gears which are placed face to face. The sprocket (12) is mounted on a shaft (15) carrying an eccentric (14). When the shaft is rotated the eccentric motion of the sprocket and the differing tooth numbers of the two gears cause relative motion between the members.

Description

La présente invention est relative a un dispositif perfectionné nouveau et efficace pour régler l'inclinaison dlun organe par rapport a un autre, qui est plus particulièrement destiné a faciliter le réglage de l'inclinaison du dossier d'un siège de véhicule, ou encore le déplacement d'un autre organe mécanique, suivant des valeurs continues dans une échelle micrométrique. The present invention relates to a new and effective improved device for adjusting the inclination of one member relative to another, which is more particularly intended to facilitate adjustment of the inclination of the backrest of a vehicle seat, or even the displacement of another mechanical member, according to continuous values in a micrometric scale.

D'une façon générale, l'invention consiste en un mécanisme de construction et de fonctionnement simples, du fait que le dispositif comprend deux éléments pouvant Etre fixés sur le dossier et le siège proprement dit d'un siège, respectivement, ces éléments constituant par leur assemblage et leur agencement l'un contre l'autre, un bot- tier constitué de cavités qui comportent sur leur périphérie des séries continues de dents avec lesquelles coopère un pignon enfermé a l'intérieur dudit boîtier, cet engrenage étant actionné au moyen d'une poignée disposée à l'extérieur du dispositif, par l'intermédiaire d'un mécanisme approprie. In general, the invention consists of a simple construction and operating mechanism, owing to the fact that the device comprises two elements which can be fixed to the backrest and the actual seat of a seat, respectively, these elements constituting by their assembly and their arrangement one against the other, a housing made up of cavities which comprise on their periphery continuous series of teeth with which cooperates a pinion enclosed inside said housing, this gear being actuated by means of 'a handle disposed outside the device, by means of a suitable mechanism.

Le dispositif suivant l'invention permet de régler la position du dossier par rapport au siège de façon micrométrique suivant le désir de l'utilisateur et pour assurer son confort , de manière que pendant l'opération de réglage de la position du dossier de celui-ci reste continuellement verrouillé, ce qui constitue un facteur de la plus haute importance en ce qui concerne la sécurité de l'utilisateur. The device according to the invention makes it possible to adjust the position of the backrest with respect to the seat micrometrically according to the desire of the user and to ensure his comfort, so that during the operation of adjusting the position of the backrest of the latter this remains continuously locked, which is a factor of the utmost importance with regard to user safety.

D'autres caractéristiques et avantages de l'invention apparaitront au cours de la description qui va suivre, faite en se référant aux dessins annexés donnés uniquement à titre d'exemple et dans lesquels
la Fig. 1 est une vue en élévation latérale du dispositif de réglage d'inclinaison suivant l'invention;
la Fig. 2 est une vue en coupe suivant la ligne AA- dela Fig. 1
la Fig. 3 est une vue en perspective éclatée des principaux organes du dispositif suivant l'invention. Other characteristics and advantages of the invention will emerge during the description which follows, made with reference to the appended drawings given solely by way of example and in which
Fig. 1 is a side elevational view of the tilt adjustment device according to the invention;
Fig. 2 is a sectional view along the line AA- from FIG. 1
Fig. 3 is an exploded perspective view of the main organs of the device according to the invention.

En se référant aux dessins, le dispositif suivant l'invention est constitué de deux plaques circulaires 1 et 2 comportant chacune un appendice ou prolongement, 3 et 4 repectivemer.t adapté pour permettre la fixation la tépale du dossier du siège e du siège proprement dit, la plaque I comportant suivant l'invention une première cavité délimitant un épaulement 5 sur lequel est formée une couronne dentée 6 sur toute sa périphérie, cette couronne étant suivie d'une seconde cavité 7 plus profonde, à fond plat, la plaque 2 comportant à son tour un épaulement annulaire 8 en saillie qui présente également sur sa périphérie interne une série de dents 9 constituant une couronne dentée et qui délimite une surface interne 10 formant par suite une cavité par rapport au plan de la saillie annulaire 8, celle-ci correspondant au premier épaulement 5 de la pla- que 1, contre lequel la saillie annulaire 8 est ajustée et en contact, délimitant ainsi entre les cavités 7 et 10 une chambre circulaire 11
-Il est. par ailleurs prévu à l'intérieur de la chambre circulaire il une roue dentée 12 ayant un diamètre inférieur à celui de la chambre 11 et coratportant une ouverture centrale circulaire 13 occupee par un excentrique cylindre 14 solidaire d'un arbre 15 dont les extrémités opposées s1 étendent à travers les cavités 7 et 10 des plaques 1 et 2, à travers des trous 22 et 23 prévus au centre de celles-ci.Referring to the drawings, the device according to the invention consists of two circular plates 1 and 2 each comprising an appendage or extension, 3 and 4 repectivemer.t adapted to allow the attachment of the tepal of the seat back and the seat itself , the plate I comprising according to the invention a first cavity delimiting a shoulder 5 on which is formed a toothed crown 6 over its entire periphery, this crown being followed by a second deeper cavity 7, with a flat bottom, the plate 2 comprising in turn an annular shoulder 8 projecting which also has on its internal periphery a series of teeth 9 constituting a toothed crown and which delimits an internal surface 10 consequently forming a cavity relative to the plane of the annular projection 8, the latter corresponding to the first shoulder 5 of the plate 1, against which the annular projection 8 is adjusted and in contact, thus delimiting between the cavities 7 and 10 a circular chamber 11
-It is. also provided inside the circular chamber there a toothed wheel 12 having a diameter smaller than that of the chamber 11 and coratportant a circular central opening 13 occupied by an eccentric cylinder 14 integral with a shaft 15 whose opposite ends s1 extend through the cavities 7 and 10 of the plates 1 and 2, through holes 22 and 23 provided in the center of these.

En raison de la position excentrée de la roue dentée 12 par rapport à l'arbre 15, cette roue engrè- ne simultanément avec les dents 6 de l'épaulement 5 de la plaque 1 et avec les dents 9 la saillie annulaire 8 de la plaque 2, le nombre des dents 6 de l'épaulement 5 étant différent du nombre des dents 9 de la saillie annulaire 8, la différence étant de préférence d'une unité. Due to the eccentric position of the toothed wheel 12 with respect to the shaft 15, this wheel meshes simultaneously with the teeth 6 of the shoulder 5 of the plate 1 and with the teeth 9 the annular projection 8 of the plate 2, the number of teeth 6 of the shoulder 5 being different from the number of teeth 9 of the annular projection 8, the difference preferably being one.

Suivant un mode de réalisation préféré du dispositif suivant l'invention, la série de dents 6 de la plaque 1 est celle qui comporte une dent de moins que la série de dents 9 de la plaque 2. According to a preferred embodiment of the device according to the invention, the series of teeth 6 of the plate 1 is that which has one less tooth than the series of teeth 9 of the plate 2.

La plaque 1 comporte en outre au commencement de son appendice 3 et au voisinage de l'épaulement 5 des trous 16 dans lesquels sont disposés des rivets ou broches 17 dont les têtes enserrent partiellement le bord de la plaque 2, tandis que celle-ci comporte à son tour une broche ou rivet 19 disposé dans un trou 18 et dont la tête est elle-meme partiellement ajustée contre le bord de la plaque 1. The plate 1 further comprises at the beginning of its appendage 3 and in the vicinity of the shoulder 5 of the holes 16 in which are disposed rivets or pins 17 whose heads partially enclose the edge of the plate 2, while the latter comprises in turn a pin or rivet 19 placed in a hole 18 and the head of which is itself partially adjusted against the edge of the plate 1.

Les plaques 1 et 2 sont maintenues réunies ensemble et juxtaposées par l'action de retenue exercée par les têtes des rivets ou broches 17, 19, qui permettent une rotation limitée d'une plaque par rapport à l'autre, cette limite tant déterminée par l'extrémité de la partie circulaire de la plaque et le commencement de son appendice, lorsque le rivet fixé sur l'autre plaque atteint cet appendice. The plates 1 and 2 are held together and juxtaposed by the retaining action exerted by the heads of the rivets or pins 17, 19, which allow limited rotation of one plate relative to the other, this limit being determined by the end of the circular part of the plate and the beginning of its appendage, when the rivet fixed on the other plate reaches this appendage.

L'arbre 15, après avoir traversé en leur centre les plaques 1 et 2 liées ensemble, comporte à l'une de ses extrémités un bouton ou poignée classique d'actionnement 20 permettant à l'utilisateur d'entrainer l'arbre en rotation, tandis que l'extrémité opposée de cet arbre peut présenter des cannelures 21 ou une autre configuration appropriée, telle qu'un cube ou analogue, pour assurer une liaison éventuellement et un mouvement simultané d'un autre organe de commande. The shaft 15, after having passed through their centers the plates 1 and 2 linked together, comprises at one of its ends a conventional actuating button or handle 20 allowing the user to drive the shaft in rotation, while the opposite end of this shaft may have grooves 21 or another suitable configuration, such as a cube or the like, to possibly provide a connection and a simultaneous movement of another control member.

Le fonctionnement du dispositif suivant l'invention tel que décrit ci-dessus est facile à comprendre et est fiable et efficace. L'arbre 15 est entrainé en mouvement par la rotation de la poignée 20 et, par suite, son excentrique 14, disposé librement dans le passage central 13 de la roue dentée 12, détermine un mouvement simultané et double de celle-ci, c'est-à-dire un mouvement de rotation autour de l'excentrique 14 et un mouvement de translation autour d'une circonférence théorique concentrique à l'arbre 15.  The operation of the device according to the invention as described above is easy to understand and is reliable and effective. The shaft 15 is driven in movement by the rotation of the handle 20 and, consequently, its eccentric 14, freely placed in the central passage 13 of the toothed wheel 12, determines a simultaneous and double movement of the latter, it that is to say a rotational movement around the eccentric 14 and a translational movement around a theoretical circumference concentric with the shaft 15.

En raison de la présence de l'excentri- que 14 de l'arbre 15, la roue dentee 12, qui a un-diamètre inférieur à celui des couronnes dentées 6 et 9, engrene partiellement avec les dentures de ces couronnes, qui présen- tent entre elles la différence d'une dent, ce qui force les deux plaques 1 et 2 à effectuer une rotation différentielle et fait par conséquent varier la position relative des appendices 3 et 4, qui sont fixés au dossier du siège et au siège proprement dit respectivement, en provoquant une variation micrometrique progressive de la position du dossier du siège par rapport à la verticale. Due to the presence of the eccentric 14 of the shaft 15, the toothed wheel 12, which has a smaller diameter than that of the toothed crowns 6 and 9, partially meshes with the teeth of these crowns, which present try the difference of a tooth between them, which forces the two plates 1 and 2 to perform a differential rotation and therefore varies the relative position of the appendages 3 and 4, which are fixed to the seat back and to the seat itself respectively, by causing a progressive micrometric variation in the position of the seat back relative to the vertical.

l'engrènement de la roue dentée 12 avec les couronnes dentées 6 et 9 est maintenu de façon continue sans aucune possibilité de blocage ou de jeu d'une plaque par rapport à l'autre, ce qui a pour résultat un verrouillage permanent du dossier par rapport au siège et supprime par conséquent tout risque d'accident dû à un déverrouillage intempestif du dossier, celui-cieant simplement déplace lorsque la poignée est entrainéeen rotation, avec une force minimale du fait que les dimensions du dispositif sont déterminées de façon appropriée pour atteindre ces buts. the engagement of the toothed wheel 12 with the toothed crowns 6 and 9 is maintained continuously without any possibility of blocking or play of one plate relative to the other, which results in permanent locking of the backrest by relative to the seat and therefore eliminates any risk of accident due to inadvertent unlocking of the backrest, the latter simply moves when the handle is rotated, with minimal force because the dimensions of the device are determined appropriately to reach those goals.

Pour éviter les vibrations du dossier du siège résultant des intervalles existant dans les dentures, une rondelle 24 est disposée entre la poigne 20 et la surface de la plaque 4, cette rondelle étant traversée par l'arbre 15.  To avoid vibrations of the seat back resulting from the intervals existing in the teeth, a washer 24 is disposed between the handle 20 and the surface of the plate 4, this washer being crossed by the shaft 15.

Claims (4)

REVENDICATIONS 1. Dispositif de réglage de l'inclinaison d'un organe par rapport à un autre, du type comprenant deux plaques circulaires (1 et 2) ayant des appendices (3, 4) respectivement destinés à la fixation latérale au dossier d'un siège et à un siège proprement dit, dispositif caracté- risé en ce qu'une plaque (1) comporte une première cavité délimitant un épaulement (5) cSi présente une couronne dentée (6) sur toute sa périphérie et suivie d'une seconde ca vité (7) plus profonde et plate, l'autre plaque (2) comportant à son tour une saillie annulaire (8) dont le bord intérieur présente également une denture (9) fonwBlt couronne dentée sur tnute sa périphérie, ladite saillie annulaire (8) délimitant une zone intérieure (10) en retrait par rapport au plan de la plaque et formant une cavité, cette saillie annulaire (8) étant complémentaire de la première cavité délimitant l'épaulement (5) de la première plaque (1), contre lequel elle est ajustée et avec lequel elle est en contact, les cavités (7,10) délimitant ensemble une chambre circulaire (11)  1. Device for adjusting the inclination of one member relative to another, of the type comprising two circular plates (1 and 2) having appendages (3, 4) respectively intended for lateral attachment to the back of a seat and to a seat proper, device characterized in that a plate (1) comprises a first cavity delimiting a shoulder (5) cSi has a toothed crown (6) over its entire periphery and followed by a second ca vity (7) deeper and flat, the other plate (2) in turn comprising an annular projection (8) whose inner edge also has a toothing (9) fonwBlt toothed crown on tnute its periphery, said annular projection (8) delimiting an interior zone (10) set back relative to the plane of the plate and forming a cavity, this annular projection (8) being complementary to the first cavity delimiting the shoulder (5) of the first plate (1), against which it is adjusted and with which it is in contact, the cavities (7 , 10) together delimiting a circular chamber (11) 2. Dispositif suivant la revendication 1, caractérisé en ce au'il comporte une roue dentée (12) disposée dans ladite chambre circulaire (11), cette roue (12) ayant un diamètre inférieur à celui de ladite chambre et pr6- sentant un trou central circulaire (13) occupé par un excentrique cylindrique (14) solidaire d'un arbre (15) dont les extrémités opposées s'étendent à travers les centres des cavités (7 et 10) et des plaques (1 et 2) respectivement. 2. Device according to claim 1, characterized in that it comprises a toothed wheel (12) disposed in said circular chamber (11), this wheel (12) having a diameter less than that of said chamber and having a hole circular central (13) occupied by a cylindrical eccentric (14) integral with a shaft (15) whose opposite ends extend through the centers of the cavities (7 and 10) and of the plates (1 and 2) respectively. 3. Dispositif suivant la revendication 2, caractérisé en ce que la position excentrée de la roue dentée (12) par rapport à l'arbre (15) est telle que ladite roue engrène simultanément avec la denture (6) de l'épaule noient (5) de la première plaque (1) et avec la denture (9) de la saillie annulaire (8), la nombre de dents de la couronne (6) de l'épaulement (5) étant différent du nombre de dents de la couronne (9) de la saillie annulaire (8), la différence étant de préférenc d'une unité. 3. Device according to claim 2, characterized in that the eccentric position of the toothed wheel (12) relative to the shaft (15) is such that said wheel meshes simultaneously with the toothing (6) of the shoulder drown ( 5) of the first plate (1) and with the toothing (9) of the annular projection (8), the number of teeth of the crown (6) of the shoulder (5) being different from the number of teeth of the crown (9) of the annular projection (8), the difference preferably being one. 4. Dispositif suivant l'une quelconque cs revendications 1 à 3, cractérise en ce que la pre- mière plaque (13 comporte a ia naissance de son appendice (3) et au voisinage de l'épaulement (5) des trous (16) dans lesquels sont disposés des rivets ou broches (17) dont les têtes enserrent partiellement le bord de l'autre plaque (2) tandis que cette dernière comporte à son tour un trou (18) dans lequel est disposé une broche ou un rivet f19) dont la tête est ajusté partiellement contre le bord de la première plaque (1).  4. Device according to any one of claims 1 to 3, characterized in that the first plate (13 has a ia birth of its appendage (3) and in the vicinity of the shoulder (5) of the holes (16) in which rivets or pins (17) are arranged, the heads of which partially enclose the edge of the other plate (2) while the latter in turn comprises a hole (18) in which is disposed a pin or a rivet f19) the head of which is partially adjusted against the edge of the first plate (1).
FR8100379A 1980-12-08 1981-01-12 Adjuster mechanism for motor vehicle seat - uses eccentrically mounted sprocket meshing with internal gears of differing tooth number at end of each member (BR 5.5.81) Withdrawn FR2495800A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR8008014A BR8008014A (en) 1980-12-08 1980-12-08 PERFECTED RECLINATING MECHANISM

Publications (1)

Publication Number Publication Date
FR2495800A1 true FR2495800A1 (en) 1982-06-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR8100379A Withdrawn FR2495800A1 (en) 1980-12-08 1981-01-12 Adjuster mechanism for motor vehicle seat - uses eccentrically mounted sprocket meshing with internal gears of differing tooth number at end of each member (BR 5.5.81)

Country Status (2)

Country Link
BR (1) BR8008014A (en)
FR (1) FR2495800A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6168235B1 (en) 1998-11-16 2001-01-02 Dura Global Technologies Inc. Recliner control mechanism for a seat assembly
EP1880638A1 (en) 2006-07-21 2008-01-23 Giuseppe Tornaghi Hinge for position adjustment of backs, arm rests and various movements in divans and beds

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2343449A1 (en) * 1976-03-09 1977-10-07 Glingener Margret ROTATING HARDWARE, ESPECIALLY FOR ADJUSTING THE ANGLE OF SEAT BACKREST
FR2345110A1 (en) * 1976-03-27 1977-10-21 Schlappig Manfred ADJUSTABLE SWIVEL JOINT
FR2455869A1 (en) * 1979-05-05 1980-12-05 Rentrop Hubbert & Wagner ARTICULATED FRAME FOR SEAT WITH ADJUSTABLE BACKREST, PARTICULARLY MOTOR VEHICLE SEAT

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2343449A1 (en) * 1976-03-09 1977-10-07 Glingener Margret ROTATING HARDWARE, ESPECIALLY FOR ADJUSTING THE ANGLE OF SEAT BACKREST
FR2345110A1 (en) * 1976-03-27 1977-10-21 Schlappig Manfred ADJUSTABLE SWIVEL JOINT
FR2455869A1 (en) * 1979-05-05 1980-12-05 Rentrop Hubbert & Wagner ARTICULATED FRAME FOR SEAT WITH ADJUSTABLE BACKREST, PARTICULARLY MOTOR VEHICLE SEAT

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6168235B1 (en) 1998-11-16 2001-01-02 Dura Global Technologies Inc. Recliner control mechanism for a seat assembly
EP1880638A1 (en) 2006-07-21 2008-01-23 Giuseppe Tornaghi Hinge for position adjustment of backs, arm rests and various movements in divans and beds

Also Published As

Publication number Publication date
BR8008014A (en) 1981-05-05

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