IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0828397
(2010-07-01)
|
등록번호 |
US-8382130
(2013-02-26)
|
우선권정보 |
JP-2009-176360 (2009-07-29) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
5 |
초록
▼
A vehicle suspension system includes a vertically reciprocally movable suspension arm assembly having a minimal number of component parts and configured to be light in weight. The suspension arm assembly includes a lower arm portion including a plurality of arm members which are operatively connecte
A vehicle suspension system includes a vertically reciprocally movable suspension arm assembly having a minimal number of component parts and configured to be light in weight. The suspension arm assembly includes a lower arm portion including a plurality of arm members which are operatively connected together via a plurality of hinge joints. The arm members are operatively associated with each other in a manner so as to permit vertical reciprocating movement of a wheel, and are interconnected in a manner so as to permit a shock absorber to make a stroke motion, where one end of the shock absorber is attached to a portion of a vehicle body, and another end of the shock absorber is attached to one of the arm members.
대표청구항
▼
1. In a vehicle having a vehicle body frame, a vehicle suspension system comprising: a suspension arm having a first end pivotally attached to the vehicle body frame and a second end which forms part of a wheel-supporting structure; anda shock absorber having a first end operatively connected to a p
1. In a vehicle having a vehicle body frame, a vehicle suspension system comprising: a suspension arm having a first end pivotally attached to the vehicle body frame and a second end which forms part of a wheel-supporting structure; anda shock absorber having a first end operatively connected to a portion of the vehicle body frame, and a second end connected to the suspension arm; wherein the suspension arm comprises: a first arm member having a proximal end pivotally attached to the vehicle body frame and a distal end spaced away from the vehicle body frame, the first arm member comprising a first arm segment, a second arm segment, and a cross brace interconnecting respective medial portions of the first and second arm segments;a second arm member having a first end pivotally connected to the distal end of the first arm member and a second end for operatively supporting part of a steering knuckle, anda third arm member having a first end pivotally attached to the vehicle body frame and a second end operatively attached to the second arm member;wherein the first, second, and third arm members are operatively interconnected via a plurality of pivotally movable connection joints, and are configured and arranged to permit the shock absorber to make a stroke motion during vertical movement of a wheel of the vehicle. 2. The vehicle suspension system according to claim 1, wherein the suspension arm is a lower arm of an independent suspension having said steering knuckle supported on distal ends of an upper arm and the lower arm. 3. The vehicle suspension system of claim 1, wherein the second arm member has a substantially triangular outline shape. 4. The vehicle suspension system of claim 1, wherein the second arm member has a shock absorber support bracket thereon for supporting the second end of the shock absorber, and wherein the second end of the third arm member is operatively attached to the shock absorber support bracket proximate the second end of the shock absorber. 5. The vehicle suspension system of claim 1, wherein each of the first and second arm segments of the first arm member has an integral tubular boss thereon, and wherein the tubular bosses of the first and second arm segments have a common pivot axis. 6. The vehicle suspension system of claim 5, wherein the first end of the third arm member has a pivot axis which is different from the common pivot axis of the first arm member. 7. The vehicle suspension system according to claim 1, wherein the first and second arm members cooperate so as to substantially form a V-shape, as viewed in a top plan view thereof. 8. The vehicle suspension system according to claim 7, wherein the second end of the shock absorber is operatively connected to the second arm member. 9. The vehicle suspension system according to claim 7, wherein the suspension arm is a lower arm of an independent suspension having said steering knuckle supported on distal ends of an upper arm and the lower arm. 10. The vehicle suspension system according to claim 1, wherein the second end of the shock absorber is operatively connected to the second arm member. 11. The vehicle suspension system according to claim 10, wherein the suspension arm is a lower arm of an independent suspension having said steering knuckle supported on distal ends of an upper arm and the lower arm. 12. The vehicle suspension system according to claim 11, wherein the suspension system is a double wishbone suspension for movably supporting a front wheel in a rear-wheel-drive all-terrain vehicle. 13. In a vehicle having a vehicle body frame, a vehicle suspension system comprising: a suspension arm having a first end pivotally attached to the vehicle body frame and a second end which forms part of a wheel-supporting structure; anda shock absorber having an upper end which is operatively connected to a portion of the vehicle body frame, and a lower end connected to the suspension arm;wherein the suspension arm comprises: a first arm member having a proximal end pivotally attached to the vehicle body frame, a distal end spaced away from the vehicle body frame, said first arm member comprising a first arm segment, a second arm segment, and a cross brace interconnecting medial portions of the first and second arm segments, respectively;a second arm member having a substantially triangular outline shape, the second arm member comprising a first end pivotally connected to the distal end of the first arm member and a second end spaced away from the first end and configured for operatively supporting part of a steering knuckle thereon, the second arm member having a shock absorber support bracket thereon for supporting the lower end of the shock absorber, wherein the first and second arm members cooperate to form an A-arm; anda third arm member having a first end pivotally attached to the vehicle body frame and a second end pivotally attached to the second arm member at the shock absorber support bracket; andwherein the first, second, and third arm members are configured and arranged to permit the shock absorber to make a stroke motion during vertical movement of a wheel of the vehicle. 14. The vehicle suspension system according to claim 13, wherein the suspension arm is a lower arm of an independent suspension having said steering knuckle supported on distal ends of an upper arm and the lower arm. 15. The vehicle suspension system according to claim 13, wherein the suspension system is a double wishbone suspension for movably supporting a front wheel of a rear-wheel-drive all-terrain vehicle. 16. A vehicle comprising a vehicle body frame, and a double wishbone front suspension system comprising: an upper suspension arm having an inner end pivotally attached to the vehicle body frame and an outer end which forms part of a wheel-supporting structure;a lower suspension arm having an inner end pivotally attached to the vehicle body frame and an outer end which forms part of a wheel-supporting structure;a steering knuckle which is attached to the respective outer ends of the upper and lower suspension arms; anda shock absorber having an upper end which is operatively connected to a portion of the vehicle body frame, and a lower end connected to the lower suspension arm;wherein the lower suspension arm comprises: a first arm member having a proximal end pivotally attached to the vehicle body frame, a distal end spaced away from the vehicle body frame, said first arm member comprising a first arm segment, a second arm segment, and a cross brace interconnecting medial portions of the first and second arm segments, respectively;a second arm member having a substantially triangular outline shape, the second arm member comprising a first end pivotally connected to the distal end of the first arm member and a second end spaced away from the first end and configured for operatively supporting part of a steering knuckle thereon, the second arm member having a shock absorber support bracket thereon for supporting the lower end of the shock absorber, wherein the first and second arm members cooperate to form an A-arm; anda third arm member having a first end pivotally attached to the vehicle body frame and a second end pivotally attached to the second arm member at the shock absorber support bracket; andwherein the first, second, and third arm members are configured and arranged to permit the shock absorber to make a stroke motion during vertical movement of a wheel of the vehicle. 17. The vehicle of claim 16, wherein the vehicle is a rear-wheel drive all-terrain vehicle. 18. The vehicle suspension system of claim 16, wherein each of the first and second arm segments of the first arm member has an integral tubular boss thereon, and wherein the tubular bosses of the first and second arm segments have a common pivot axis. 19. The vehicle suspension system of claim 18, wherein the first end of the third arm member has a pivot axis which is different from the common pivot axis of the first arm member.
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