WO1997038874A1 - Dispositif de blocage en hauteur d'un appui-tete, notamment pour siege de vehicule automobile - Google Patents
Dispositif de blocage en hauteur d'un appui-tete, notamment pour siege de vehicule automobile Download PDFInfo
- Publication number
- WO1997038874A1 WO1997038874A1 PCT/FR1997/000666 FR9700666W WO9738874A1 WO 1997038874 A1 WO1997038874 A1 WO 1997038874A1 FR 9700666 W FR9700666 W FR 9700666W WO 9738874 A1 WO9738874 A1 WO 9738874A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ring
- housing
- spindle
- pin
- socket
- Prior art date
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
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
- B60N2/809—Head-rests movable or adjustable vertically slidable
- B60N2/812—Head-rests movable or adjustable vertically slidable characterised by their locking devices
- B60N2/821—Head-rests movable or adjustable vertically slidable characterised by their locking devices with continuous positioning
- B60N2/826—Head-rests movable or adjustable vertically slidable characterised by their locking devices with continuous positioning using rubber-type material
Definitions
- the present invention relates to a device for blocking the height of a headrest, in particular for the seat of a motor vehicle, and more particularly to such a headrest of the type comprising at least one pin engaged in a socket integral with the structure of said structure.
- the head restraints used in the automobile industry comprise, in a known manner, a support cushion mounted at the upper end of two pins, the other end of which enters the seat back
- the pins are generally slidably mounted in sockets integral with the seat frame
- These pins then have locking notches cooperating with retractable fingers, controllable by the user to block the headrest in height in one of a number of possible positions
- the headrests of motor vehicles obviously have the function of providing comfort to passengers, but even more of ensuring their safety Indeed, during an impact from the rear of the vehicle, the user's trunk is violently pressed against the back of the seat so that in the absence of a headrest, his head is suddenly thrown backwards It frequently results in lesions, up to the rupture of the cervical vertebrae
- head restraints tend to rise under the effect of the centrifugal force induced by the rapid tilting of the seat backs forwards. This effect can go as far as the ejection of the head restraints.
- this safety function can only be adequately fulfilled if the headrest is sufficiently high or, more generally, is and remains in its optimal adjustment position, or if this position becomes optimal.
- the difficulty lies in the fact that , if it is a little too low, the user's head goes, striking it from front to back and slightly top to bottom, push it towards the seat backrest and thus make it ineffective It is therefore important that the pins of the headrest are firmly held in their mounting sockets when they receive a sudden force upwards or low
- it must be easily adjustable in height
- it is desirable that the user does not have to exert an adjustment effort as important as that which is necessary to depress the headrest by a shock exerted from top to bottom, or in general as that which the headrest must resist in the event of a collision in order not to be out of adjustment
- the present invention aims to overcome these drawbacks. More particularly, the invention aims to provide a device for mounting and blocking the height of a headrest, in particular of the seat of a motor vehicle, which allows effective blocking in particular during a shock exerted from top to bottom, while allowing easy adjustment, without significant effort, and by a user installed on the seat
- the subject of the invention is a device for blocking the height of a headrest of a seat, in particular of a motor vehicle, said headrest comprising at least one pin engaged in a socket integral with the structure of said seat, characterized by the fact that it comprises at least one ring disposed in a housing of said socket and arranged to receive and tighten said pin, said ring and said housing having surfaces of cooperating cams so that the ring selectively tightens or releases said pin when said ring is subjected via said spindle to forces of predetermined direction
- said cam surfaces can be arranged to control the tightening of the spindle by the ring as a function of a force exerted from top to bottom on the spindle.
- said ring and said housing may include complementary cam surfaces arranged to cause loosening of the spindle by a substantially horizontal steering force, after tightening caused by the action of a force exerted substantially vertically.
- Such an arrangement prevents any jamming which could prevent a return to the initial arrangements after a force exerted sufficiently violently in a vertical direction.
- the means according to the invention only come into play in the event of a shock sufficiently violent to justify a blocking of the headrest, that is to say for efforts much greater than those likely to be exercised by a user wishing to adjust it
- said ring can be split substantially along at least one of its generatrices, and a part of said surface of said housing can be substantially frustoconical flared upward and arranged to cooperate with a part also substantially frustoconical of the surface of said ring to tighten said ring when the latter is subjected to a force exerted from top to bottom.
- said ring is substantially cylindrical with a substantially vertical axis
- said housing also being substantially cylindrical with a substantially vertical axis but elongated from front to rear of the seat, so that the ring can move back and forth in said housing when forces are exerted on it. from these directions, the ring and its housing being shaped so that such displacements cause said spindle to tighten or loosen
- said ring is split substantially along at least one of its generatrices. and said housing is opened correspondingly, said ring having a wing at least on one side of its slot, engaged in the opening of said housing, said wing having a surface cooperating with a surface of the opening of said housing for more or less tighten the ring on said spindle depending on the position of the ring in its housing
- the device according to the invention comprises return means arranged to exert on said spindle a force directed substantially from front to rear
- said return means comprise a retaining plug mounted on said socket and crossed by said pin, said plug having an elastic cut pressing the pin backwards
- said return means comprise a return washer traversed by said pin, and elastic means arranged to press said washer backwards
- said elastic means may comprise at least one elastic tab connecting said washer to said socket
- said elastic means comprise at least one U-shaped spring, the ends of the branches of which are fixed to said washer, the branches of which extend downwards generally in the direction of the axis of the spindle by bearing on the structure of the seat, and the central part of which bears on said spindle.
- said pin preferably comprises, near its end, a notch arranged to receive said central part, release means being provided for pushing said central part out of said notch.
- This arrangement provides, in addition to the desired force forwards on the spindle, an anti-extraction means making it possible to prevent the extraction of the headrest from the seat when it is pulled too abruptly upwards by the occupying the seat or during violent frontal impacts.
- the central part of the U-shaped spring engages in the notch, blocking this travel or, depending on the embodiment, forming a notch sensitive to the user.
- said release means advantageously comprise an actuatable pusher, in particular through the seat trim, from the rear or the front of the latter, arranged to push on said branches of the U-shaped spring.
- said pusher is elastically connected to the socket and comprises means for snapping the socket onto the structure of the seat.
- the pusher allows both the disassembly of the headrest and that of its support sleeve.
- said pusher is connected by elastic uprights to a housing block of said ring.
- said pusher comprises a lug arranged to come into abutment on said spindle when the pusher is actuated and that said spindle is in place, so as to prevent the socket from being disengaged while the spindle is engaged in the socket
- Figure 1 is an exploded perspective view of a device according to the invention, arranged for mounting a headrest on the back of a seat, in particular of a motor vehicle
- FIG. 2 is a partial view in axial section of the socket of this device
- FIG. 3 is a sectional view along the line III-III of FIG. 2,
- - Figure 4 is a view on a larger scale, in axial section, of the aforementioned ring disposed in its housing in the normal operating position
- - Figure 5 is a view similar to that of Figure 4, when the support- head receives a shock from top to bottom,
- FIG. 6 is a cross-sectional view of the device according to the invention in the normal operating position
- FIG. 7 is a view similar to that of FIG. 6 when the head restraint is pulled towards the front of the vehicle
- Figure 8 is a view similar to that of Figures 6 and 7 when the headrest is subjected to an impact from the front of the vehicle to the rear;
- FIG. 9 is a perspective view of a device according to another embodiment of the invention
- FIG. 10 is a partial side view illustrating the operation of the device of FIG. 9,
- FIG. 14a and 14b are schematic axial section views illustrating the operation of another embodiment of the invention.
- the device generally comprises a socket 1 arranged to be received in any suitable manner by the frame 2 of the seat back of a motor vehicle
- a ring 3 is provided for be disposed in a housing of the socket 1
- a retaining plug 4 is mounted on the socket 1, at its upper part
- the socket 1 is represented in FIG. 1 only by its interior surfaces. Only the latter are indeed of importance with regard to the invention, the exterior shapes. of the socket depending only on its attachment to the frame
- the seat frame is here represented in the form of a U-shaped profile, but it could just as easily be formed of tubes
- the sleeve 1 is formed, from bottom to top, of a hooking part 10 to the structure 2 of the seat, of a tubular part 1 1 for guiding the headrest pins, of a ring housing 12 , and a part 13 for connection to the structure of the seat, unrelated to the invention
- the housing 12 comprises a substantially cylindrical part 14 terminated downwards by a frustoconical surface 15 flared upwards capable of forming a cam
- the housing 12 is open towards the front in its lateral surface along a generator to form an elongated opening 16 parallel to the general axis of the device
- the surfaces 17 of the edge of the opening 16 form a dihedron whose edge is itself parallel to this axis and the planes of which also form a cam, as will be seen below.
- the housing 12 is, transversely to its longitudinal direction, substantially cylindrical with an elongated base
- the opening 16 is formed at one of the ends of the housing 12 far from its axis
- the ring 3 is substantially cylindrical. It comprises, in its part in correspondence with the cam surface 15, another cam surface 18, external, it also tapered flared upwards. It is also split along one of its generatrices, the edges of the slot, spaced apart at rest, being extended by two wings 19 which, when the ring is in its housing, come to bear against the surfaces 17 of the sleeve.
- the retaining plug 4 is arranged externally in a suitable manner to be fixed to the upper part of the socket 1 Its internal surface is substantially cylindrical and its side wall forms an elastic cut 20 projecting inwards
- the bush 1 When the assembly which has just been described is mounted, the bush 1 is fixed to the frame 2 with the opening 16 of the housing 12 directed towards the front of the vehicle
- the ring 3 is placed in its housing 12 and the plug 4 is mounted on the socket 1 so that the cutout is located on the side of the front of the vehicle
- the headrest support pin not shown, is engaged in the socket 1 and passes through the ring 3 and the bushing 4
- the ring 3 tightens the spindle and the cutout 20 of the plug 4 pushes it backwards
- the forces are balanced, in particular those exerted by the wings 19 on the surfaces 17 and those exerted by the cutout 20 on the spindle, so that so that the ring 3 is located, transversely, in its housing 12, in a middle position relative to the front and rear of the vehicle.
- the ring 3 Vertically, the ring 3 is in a position such that the surfaces 15 and 18 are not completely in contact
- the invention therefore makes it possible on the one hand to block the headrest in the event of an impact directed from top to bottom, on the other hand to also block it in the event of an impact directed from the front to the rear, and finally to unlock it by a traction exerted from the rear towards the front
- these three actions although exerted in a complementary way by the same organs, are independent and that the invention is therefore not limited to their combination
- Figures 9 and 10 show another embodiment in which the sleeve 30 is limited to a housing block 31 for a ring 32, the block 31 supporting on the one hand, downwards, locking members 33, and d on the other hand, upwards, a return washer 34
- the block 31 and the ring 32 are of the same type and function in the same way as the housing 12 and the ring 3 and will therefore not be described in more detail
- the locking members 33 include a U-shaped spring 35 and a pusher 36
- the pusher 36 is essentially constituted by a plate connecting the free ends of two elastic uprights 37
- the elastic uprights 37 have their other end connected to the block 31, and they extend downwards from this block, they can in particular be molded in one piece with the block 31
- the pusher 36 protrudes towards the rear of the vehicle relative to the uprights 37
- the return washer 34 which can moreover be a sleeve, or part of a washer or sleeve, or even a support pad, is here mounted on the block 31 by means of three elastic tabs 38.
- the legs 38 and the washer 34 are advantageously molded in one piece with the block 31 and, if necessary, with the uprights 37 and the pusher 36
- the washer 34 also carries two bosses 39 which receive the free ends of the branches of the U-shaped spring 35 These branches then curl downward, each to form a very flared V whose top 40 is directed towards the front of the vehicle and which is located in front of the uprights 37
- the lower parts 41 of the Vs are therefore directed towards the bottom and towards the rear of the vehicle These parts 41 have their lower end opposite the uprights 37 so that, when the 'is pressed on the plunger 36, there is a tendency to open the V formed by the branches of the U
- the lower ends of the branches of the U-shaped spring 35 are themselves connected by a substantially horizontal U, open towards the rear, the central part 42 therefore forms the central part of the U-shaped spring 35
- the central part 42 is therefore located substantially below the aforementioned vertices 40
- the assembly which has just been described is housed in a sheath 43 for example a tube, solida ire of the seat structure The headrest is put in place by engaging each of its pins
- the elastic tabs 38 also preferably exert, in this position, a force directed in the same direction. However, this effort could be negligible. Conversely, if this effort is sufficiently large and constant over time, the spring 35 can be omitted, in which case it will not perform the function which will now be described.
- the pin 44 has, at its lower end, a notch 45 parallel to the central part 42 of the spring and on the side of this part.
- the notch 45 has a steep side down and a side inclined up.
- the lower end of the pin 44 is rounded or conical or frustoconical.
- a notch with inclined sides both at the top and at the bottom would allow the headrest to be removed without any special maneuver, but would indicate to the user, when lifting the headrest, that he is approaching from the maximum high point
- a set of such notches on the pins makes it possible to use the part 42 of the spring as a positioning finger for the headrest
- the pusher 36 protrudes towards the rear of the vehicle so that, when the sleeve 30 is in place, it protrudes from the lower end of the sheath 43 Thus, it snaps onto this sheath during its mounting II is therefore possible to disassemble the socket 30 by pushing in the plunger 36 after removing the headrest
- a lug 46 projects from the pusher 36 substantially in the middle, on the side of the part 42 of the spring.
- FIGS. 1 1 to 13 show three forms of rings and of corresponding housings which may be suitable.
- the wings 47 are not diverging outwards as described with reference to FIG. 6, but converging, the housing 48 here being open towards the rear at 49
- the operation is therefore inverse, with respect to the front and rear of the vehicle, to what has been described previously
- the housing 48 is further HERE decreased in cross section forwards at 50, so that a displacement both forwards and backwards of the headrest causes the pin to lock
- the various shapes can be reversed from front to back depending on whether one wishes to obtain a blockage in the event of an impact from either side
- Figures 12 and 13 show cases of operation similar to that of Figure 11
- the wings 51, and respectively 52 are HERE in the form of a dihedral, cooperating with cam surfaces of corresponding shape of the housing 48 A movement of the pins is towards the front be towards the rear therefore causes them to be tightened, these pins being in equilibrium in the position shown
- a front stop (or rear as the case may be) 55, of the housing has a limited resistance, here due to a reduced thickness.
- a higher force causing the abutment 55 to break will allow an even more forward movement of the ring, again causing the spindle to tighten again.
- the ring and the housing also have here inclined surfaces upward and forward 56 and 57 respectively opposite.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Clamps And Clips (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9708693A BR9708693A (pt) | 1996-04-18 | 1997-04-15 | Dispositivo de bloqueio em altura de um encosta de cabeça de assento notadamente de veículo automotor |
EP97918223A EP0909244A1 (fr) | 1996-04-18 | 1997-04-15 | Dispositif de blocage en hauteur d'un appui-tete, notamment pour siege de vehicule automobile |
AU26426/97A AU2642697A (en) | 1996-04-18 | 1997-04-15 | Device for vertically securing headrests, particularly for motor vehicle seats |
EA199800937A EA199800937A1 (ru) | 1996-04-18 | 1997-04-15 | Устройство для блокирования на высоте подголовника, в особенности для автомобльного сидения |
JP53681197A JP2001517968A (ja) | 1996-04-18 | 1997-04-15 | 特に自動車シート用ヘッドレストを高さに関してロックする装置 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9604864A FR2747628B1 (fr) | 1996-04-18 | 1996-04-18 | Dispositif de blocage en hauteur d'un appui-tete, notamment pour siege de vehicule automobile |
FR96/04864 | 1996-04-18 | ||
FR96/15207 | 1996-12-11 | ||
FR9615207A FR2756789B1 (fr) | 1996-12-11 | 1996-12-11 | Dispositif de blocage en hauteur d'un appui-tete, notamment pour siege de vehicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997038874A1 true WO1997038874A1 (fr) | 1997-10-23 |
Family
ID=26232660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1997/000666 WO1997038874A1 (fr) | 1996-04-18 | 1997-04-15 | Dispositif de blocage en hauteur d'un appui-tete, notamment pour siege de vehicule automobile |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0909244A1 (fr) |
JP (1) | JP2001517968A (fr) |
KR (1) | KR20000005540A (fr) |
CN (1) | CN1218438A (fr) |
AU (1) | AU2642697A (fr) |
BR (1) | BR9708693A (fr) |
CA (1) | CA2251901A1 (fr) |
EA (1) | EA199800937A1 (fr) |
WO (1) | WO1997038874A1 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2779690A1 (fr) * | 1998-06-15 | 1999-12-17 | Cera | Dispositif de blocage en hauteur d'un appui-tete notamment pour siege de vehicule automobile |
FR2821590A1 (fr) * | 2001-03-02 | 2002-09-06 | Cera | Dispositif de coulissement et de blocage d'une tige lisse, notamment pour le reglage d'appuis-tete pour sieges de vehicules automobiles |
CN101746298A (zh) * | 2008-12-01 | 2010-06-23 | 李尔公司 | 具有可调节的头部支撑装置组件的座椅组件 |
DE102011114546A1 (de) * | 2011-07-14 | 2013-01-17 | Volkswagen Aktiengesellschaft | Querelement für integrierte und separateKopfstützen |
US8857910B2 (en) | 2011-11-23 | 2014-10-14 | Woobo Tech Co., Ltd. | Apparatus for moving headrest |
US10308153B2 (en) | 2014-07-11 | 2019-06-04 | Woobo Tech Co., Ltd. | Headrest moving device |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004013979B3 (de) * | 2004-03-19 | 2005-06-30 | Johnson Controls Gmbh | Vorrichtung zur Halterung einer Komponente, insbesondere eine Kopfstütze und insbesondere in oder an einem Fahrzeug |
KR100710078B1 (ko) | 2005-06-13 | 2007-04-23 | 삼성전자주식회사 | 모니터장치 |
DE102008057792B4 (de) * | 2008-11-17 | 2013-08-14 | Johnson Controls Gmbh | Crashaktive Kopfstütze mit einem sperrenden Druckknopf |
KR101621548B1 (ko) | 2009-11-18 | 2016-05-16 | 주식회사다스 | 다이알타입 시트높이고정장치 |
CN106314221B (zh) * | 2016-08-29 | 2018-07-10 | 好孩子儿童用品有限公司 | 一种儿童安全座椅 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3542429A (en) * | 1967-08-26 | 1970-11-24 | Toyota Motor Co Ltd | Adjustable head rest for vehicle seat |
DE2512147A1 (de) * | 1975-03-20 | 1976-10-28 | Daimler Benz Ag | Befestigung eines fuehrungskoerpers fuer eine kopfstuetzentragstange in einer fuehrungsschiene |
US4545618A (en) * | 1984-02-22 | 1985-10-08 | Tachikawa Spring Co., Ltd. | Head-rest device |
FR2571317A2 (fr) * | 1984-10-05 | 1986-04-11 | Daimler Benz Ag | Dispositif de deverrouillage pour le degagement d'une tige portante guidee d'appui-tete |
US4674796A (en) * | 1984-10-05 | 1987-06-23 | Daimler-Benz Aktiengesellschaft | Vehicle passenger headrest support arrangement |
US4695095A (en) * | 1984-10-05 | 1987-09-22 | Daimler-Benz Aktiengesellschaft | Arrangement for securing the end position of a guided support rod of a headrest |
US5056867A (en) * | 1990-06-18 | 1991-10-15 | Hoover Universal, Inc. | Head restraint adjustment mechanism |
DE19524831A1 (de) * | 1995-07-07 | 1995-11-23 | Audi Ag | Haltevorrichtung für eine Kopfstütze an einem Fahrzeugsitz |
-
1997
- 1997-04-15 WO PCT/FR1997/000666 patent/WO1997038874A1/fr active IP Right Grant
- 1997-04-15 AU AU26426/97A patent/AU2642697A/en not_active Abandoned
- 1997-04-15 BR BR9708693A patent/BR9708693A/pt not_active Application Discontinuation
- 1997-04-15 KR KR1019980708340A patent/KR20000005540A/ko active IP Right Grant
- 1997-04-15 EP EP97918223A patent/EP0909244A1/fr not_active Ceased
- 1997-04-15 EA EA199800937A patent/EA199800937A1/ru unknown
- 1997-04-15 JP JP53681197A patent/JP2001517968A/ja active Pending
- 1997-04-15 CN CN97194662A patent/CN1218438A/zh active Pending
- 1997-04-15 CA CA002251901A patent/CA2251901A1/fr not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3542429A (en) * | 1967-08-26 | 1970-11-24 | Toyota Motor Co Ltd | Adjustable head rest for vehicle seat |
DE2512147A1 (de) * | 1975-03-20 | 1976-10-28 | Daimler Benz Ag | Befestigung eines fuehrungskoerpers fuer eine kopfstuetzentragstange in einer fuehrungsschiene |
US4545618A (en) * | 1984-02-22 | 1985-10-08 | Tachikawa Spring Co., Ltd. | Head-rest device |
FR2571317A2 (fr) * | 1984-10-05 | 1986-04-11 | Daimler Benz Ag | Dispositif de deverrouillage pour le degagement d'une tige portante guidee d'appui-tete |
US4674796A (en) * | 1984-10-05 | 1987-06-23 | Daimler-Benz Aktiengesellschaft | Vehicle passenger headrest support arrangement |
US4695095A (en) * | 1984-10-05 | 1987-09-22 | Daimler-Benz Aktiengesellschaft | Arrangement for securing the end position of a guided support rod of a headrest |
US5056867A (en) * | 1990-06-18 | 1991-10-15 | Hoover Universal, Inc. | Head restraint adjustment mechanism |
DE19524831A1 (de) * | 1995-07-07 | 1995-11-23 | Audi Ag | Haltevorrichtung für eine Kopfstütze an einem Fahrzeugsitz |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2779690A1 (fr) * | 1998-06-15 | 1999-12-17 | Cera | Dispositif de blocage en hauteur d'un appui-tete notamment pour siege de vehicule automobile |
EP0965482A1 (fr) * | 1998-06-15 | 1999-12-22 | Centre D'etudes Et Recherche Pour L'automobile ( Cera) | Dispositif de blocage en hauteur d'un appui-tête notamment pour siège de véhicule automobile |
FR2821590A1 (fr) * | 2001-03-02 | 2002-09-06 | Cera | Dispositif de coulissement et de blocage d'une tige lisse, notamment pour le reglage d'appuis-tete pour sieges de vehicules automobiles |
CN101746298A (zh) * | 2008-12-01 | 2010-06-23 | 李尔公司 | 具有可调节的头部支撑装置组件的座椅组件 |
DE102011114546A1 (de) * | 2011-07-14 | 2013-01-17 | Volkswagen Aktiengesellschaft | Querelement für integrierte und separateKopfstützen |
US8857910B2 (en) | 2011-11-23 | 2014-10-14 | Woobo Tech Co., Ltd. | Apparatus for moving headrest |
US10308153B2 (en) | 2014-07-11 | 2019-06-04 | Woobo Tech Co., Ltd. | Headrest moving device |
Also Published As
Publication number | Publication date |
---|---|
CA2251901A1 (fr) | 1997-10-23 |
BR9708693A (pt) | 1999-08-03 |
JP2001517968A (ja) | 2001-10-09 |
CN1218438A (zh) | 1999-06-02 |
KR20000005540A (ko) | 2000-01-25 |
EA199800937A1 (ru) | 1999-04-29 |
EP0909244A1 (fr) | 1999-04-21 |
AU2642697A (en) | 1997-11-07 |
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