IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0603305
(2009-10-21)
|
등록번호 |
US-8240763
(2012-08-14)
|
우선권정보 |
JP-2008-312224 (2008-12-08) |
발명자
/ 주소 |
- Matano, Kunihiko
- Nozoe, Koichi
|
출원인 / 주소 |
|
대리인 / 주소 |
Birch, Stewart, Kolasch & Birch, LLP
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
12 |
초록
▼
A lumbar support mechanism includes a damper having one end supported by the inside of a seat back and the other end capable of extension and contraction. Seesaw links are provided with each having one end connected to the other end and capable of extension and contraction. An intermediate portion i
A lumbar support mechanism includes a damper having one end supported by the inside of a seat back and the other end capable of extension and contraction. Seesaw links are provided with each having one end connected to the other end and capable of extension and contraction. An intermediate portion is supported at a swing fulcrum by the seat back with the other end extending in the width direction of the seat back, and swung around the swing fulcrum. Pantograph links are connected to the respective seesaw links and are movable up and down in the back and forth direction in conjunction with the swing of the corresponding seesaw links. The lock-release lever is operated to release the lock mechanism of the damper. The extension and contraction force of the damper is transmitted to the pantograph links via the corresponding seesaw links with the pantograph links shifting the pad provided in the seat back.
대표청구항
▼
1. A vehicle including a seat on which an occupant sits and a seat back for supporting a back of the occupant, the seat back being internally provided with a lumbar support mechanism capable of adjusting a support position, the lumbar support mechanism comprising: a damper having one end supported b
1. A vehicle including a seat on which an occupant sits and a seat back for supporting a back of the occupant, the seat back being internally provided with a lumbar support mechanism capable of adjusting a support position, the lumbar support mechanism comprising: a damper having one end supported by an inside of the seat back and the other end capable of extension and contraction;a pair of left and right seesaw links, each one of the seesaw links having one end connected to one end of the other seesaw link, each of said pair of left and right seesaw links being capable of rotating with an extension and contraction force of the damper, an intermediate portion supported at a swing fulcrum by the inside of the seat back, and the other end extending in a width direction of the seat back and swinging around the swing fulcrum;a pair of X-shaped pantograph links connected to the corresponding seesaw links and being movable up and down in a back and forth direction in conjunction with the swing of the seesaw links; anda lock-release lever adapted to release a lock mechanism of the damper;wherein in a stage of adjusting the support position, the lock-release lever is operated to release the lock mechanism of the damper, the extension and contraction force of the damper is transmitted to the pantograph links via the corresponding seesaw links, and the pantograph links shift a pad provided in the seat back in a back and forth direction. 2. The lumbar support mechanism of a vehicle according to claim 1, wherein the lumbar support mechanism is supported by a base plate, andthe base plate is removably attached to the vehicle. 3. The lumber support mechanism of a vehicle according to claim 2, wherein the lumbar support mechanism is provided forward of a front wall of a trunk. 4. The lumber support mechanism of a vehicle according to claim 2, wherein the lumbar support mechanism is provided in the seat back of a passenger seat, andthe lock-release lever is provided in the vicinity of a grab rail. 5. The lumbar support mechanism of a vehicle according to claim 2, wherein the lumbar support mechanism is provided on a seat back plate. 6. The lumber support mechanism of a vehicle according to claim 5, wherein the lumbar support mechanism is provided forward of a front wall of a trunk. 7. The lumber support mechanism of a vehicle according to claim 5, wherein the lumbar support mechanism is provided in the seat back of a passenger seat, andthe lock-release lever is provided in the vicinity of a grab rail. 8. The lumber support mechanism of a vehicle according to claim 1, wherein the lumbar support mechanism is provided forward of a front wall of a trunk. 9. The lumber support mechanism of a vehicle according to claim 8, wherein the lumbar support mechanism is provided in the seat back of a passenger seat, andthe lock-release lever is provided in the vicinity of a grab rail. 10. The lumber support mechanism of a vehicle according to claim 1, wherein the lumbar support mechanism is provided in the seat back of a passenger seat, andthe lock-release lever is provided in the vicinity of a grab rail. 11. A lumbar support mechanism for use with a seat comprising: a damper having one end supported by an inside of a seat back and the other end capable of extension and contraction;a left seesaw link having a distal end, an intermediate portion and a proximal end;a right seesaw link having a distal end, an intermediate portion and a proximal end;said proximal end of said left seesaw link being operatively connected to the proximal end of the right seesaw link and being capable of rotating by an extension and contraction force of the damper, the intermediate portion of the left seesaw link and the intermediate portion of the right seesaw link being supported at a swing fulcrum by the inside of the seat back, and the distal end of the left seesaw link and the distal end of the right seesaw link extending in a width direction of the seat back and swinging around the swing fulcrum;a left X-shaped pantograph link connected to the left seesaw link and being movable up and down in a back and forth direction in conjunction with the swing of the left seesaw link;a right X-shaped pantograph link connected to the right seesaw links and being movable up and down in a back and forth direction in conjunction with the swing of the right seesaw link; anda lock-release lever adapted to release a lock mechanism of the damper;wherein when the lock-release lever is manually operated to release the lock mechanism of the damper, the extension and contraction force of the damper is transmitted to the left and right X-shaped pantograph links via the corresponding left and right seesaw links, and the left and right X-shaped pantograph links shift a pad provided in the seat back in a back and forth direction. 12. The lumbar support mechanism according to claim 11, wherein the lumbar support mechanism is supported by a base plate, andthe base plate is removably attached to the vehicle. 13. The lumbar support mechanism according to claim 12, wherein the lumbar support mechanism is provided on a seat back plate. 14. The lumber support mechanism according to claim 13, wherein the lumbar support mechanism is provided forward of a front wall of a trunk. 15. The lumber support mechanism according to claim 13, wherein the lumbar support mechanism is provided in the seat back of a passenger seat, andthe lock-release lever is provided in the vicinity of a grab rail. 16. The lumber support mechanism according to claim 12, wherein the lumbar support mechanism is provided forward of a front wall of a trunk. 17. The lumber support mechanism according to claim 12, wherein the lumbar support mechanism is provided in the seat back of a passenger seat, andthe lock-release lever is provided in the vicinity of a grab rail. 18. The lumber support mechanism according to claim 11, wherein the lumbar support mechanism is provided forward of a front wall of a trunk. 19. The lumber support mechanism according to claim 18, wherein the lumbar support mechanism is provided in the seat back of a passenger seat, andthe lock-release lever is provided in the vicinity of a grab rail. 20. The lumber support mechanism according to claim 11, wherein the lumbar support mechanism is provided in the seat back of a passenger seat, andthe lock-release lever is provided in the vicinity of a grab rail.
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