IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0709421
(2007-02-22)
|
등록번호 |
US-7854285
(2011-02-14)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
15 인용 특허 :
16 |
초록
The present invention relates to rear suspension systems for snowmobiles have endless belt assemblies. Specifically, the present invention relates to rear suspension architecture for coupled rear suspension systems for snowmobiles and belt tensioning assemblies.
대표청구항
▼
What is claimed is: 1. A snowmobile comprising: a chassis; a motor supported by the chassis; and an endless belt assembly including a belt and a coupled suspension, the coupled suspension including a lower rail, a front and rear control arm, a first and second bump stop, and a coupling member posit
What is claimed is: 1. A snowmobile comprising: a chassis; a motor supported by the chassis; and an endless belt assembly including a belt and a coupled suspension, the coupled suspension including a lower rail, a front and rear control arm, a first and second bump stop, and a coupling member positioned between the first and second bump stops, the front control arm adapted to operably connect the lower rail to the chassis, the rear control arm adapted to operably connect the coupling member to the chassis, the first bump stop supported by the lower rail at a first position, the second bump stop supported by the lower rail at a second position substantially below the first bump stop supported by the lower rail at the first position, the coupling member pivotally supported to the lower rail, the coupling member being moveable between the first bump stop and the second bump stop, the coupling member configured to exert a horizontal and vertical force on the second bump stop, the vertical force being greater than the horizontal force. 2. The snowmobile of claim 1, wherein the endless belt assembly includes another lower rail to define a pair of spaced-apart lower rails. 3. The snowmobile of claim 2, wherein the endless belt assembly includes another front and rear control arm to define a pair of front and rear control arms and another first and second bump stop to define a pair of first and second bump stops. 4. The snowmobile of claim 3, wherein the coupling member is positioned between the spaced-apart lower rails. 5. The snowmobile of claim 4, wherein the coupling member is moveable between the first and second pairs of bump stops. 6. The snowmobile of claim 3, wherein a cross shaft extends between the first pair of bump stops. 7. The snowmobile of claim 1, wherein the coupling member is substantially triangularly shaped. 8. The snowmobile of claim 1, wherein the rear control arm is coupled to the coupling member at a first pivot location and the coupling member is coupled to the lower rail at a second pivot location, the first pivot location being above the second pivot location. 9. The snowmobile of claim 1, wherein the coupling member is pivotally supported by the lower rail at a position below the first bump stop. 10. A snowmobile having a coupled suspension, the snowmobile comprising: a chassis having a front and rear end; a lower rail; a front control arm defining a first length extending between first and second spaced-apart ends, the front control arm positioned adjacent to the chassis front end, the front control arm pivotally coupled to the chassis on the first end and pivotally coupled to the lower rail on the second end; a rear control arm positioned adjacent to the chassis rear end and pivotally interconnected to the chassis and lower rail; a linkage assembly supported by the front control arm at a first position between the first and second ends of the front control arm, the first position being spaced-apart from the second end of the front control arm by at least a first distance, the first distance being defined by one-quarter of the length of the front control arm, the linkage assembly including a coupling link having first and second spaced-apart ends; and a shock absorber and pull rod each including first and second spaced-apart ends, the first ends interconnected to the rear control arm, the second ends operably coupled to the linkage assembly, and wherein the first end of the coupling link is pivotally interconnected to the second end of the shock absorber, the second end of the coupling link is interconnected to the front control arm at the first position, and the second end of the pull rod is connected to the coupling link at a position between the first and seconds of the coupling link. 11. The snowmobile of claim 10, wherein the snowmobile includes a pair of spaced-apart-lower rails. 12. The snowmobile of claim 11, wherein the snowmobile includes another front control arm and another rear control arm to define a pair of front control arms and a pair of rear control arms. 13. The snowmobile of claim 12, wherein the linkage assembly is coupled to a cross shaft that extends between the front control arms at the first position. 14. The snowmobile of claim 10, wherein the linkage assembly is adapted to accelerate a stroke of the shock absorber during compression of the coupled suspension. 15. The snowmobile of claim 10, wherein the linkage assembly is a bell crank. 16. A snowmobile having a coupled suspension, the snowmobile comprising: a chassis having a front and rear end; a lower rail; a front control arm defining a first length extending between first and second spaced-apart ends, the front control arm positioned adjacent to the chassis front end, the front control arm pivotally coupled to the chassis on the first end and pivotally coupled to the lower rail on the second end; a rear control arm positioned adjacent to the chassis rear end and pivotally interconnected to the chassis and lower rail; a linkage assembly supported by the front control arm at a first position between the first and second ends of the front control arm, the first position being spaced-apart from the second end of the front control arm by at least a first distance, the first distance being defined by one-quarter of the length of the front control arm, the linkage assembly including a coupling link having first and second spaced-apart ends; and a shock absorber and pull rod each including first and second spaced-apart ends, the first ends interconnected to the rear control arm, the second ends operably coupled to the linkage assembly, the first end of the coupling link being pivotally interconnected to the second ends of the shock absorber and the pull rod, the second end of the coupling link being interconnected to the front control arm at the first position, and the second end of the shock absorber being positioned coaxially with second end of the pull rod. 17. The snowmobile of claim 10, wherein the first position is spaced-apart from the second end of the front control arm by at least a second distance, the second distance being defined by one-half of the length of the front control arm. 18. A snowmobile comprising: a chassis having a front and rear end; a lower rail having front and rear ends; and an endless belt assembly including a belt, a front control arm, a rear control arm, a coupling member, and a belt tensioning system, the front control arm positioned adjacent to the chassis front end and adapted to pivotally interconnect the chassis and the lower rail, the rear control arm positioned adjacent to the chassis rear end and adapted to pivotally interconnect the chassis and one of the coupling member and the lower rail, the coupling member providing a controlled degree of freedom of movement between the coupling member and the rear control arm, the belt tensioning system configured to maintain an appropriate belt tension during movement between the chassis and lower rail, and wherein the coupling member includes a fastener extending therethrough, the fastener having first and second ends extending through an aperture in the lower rail, the first and second ends of the fastener coupled to a pair of links of the belt tensioning system. 19. The snowmobile of claim 18, wherein the lower rail defines a longitudinal axis and the belt tensioning system is moveable in a fore and aft direction along the longitudinal axis. 20. The snowmobile of claim 18, wherein the belt tensioning system includes an extendable link. 21. The snowmobile of claim 18, further comprising another lower rail to define a pair of spaced-apart lower rails, another front control arm to define a pair of front control arms, and another rear control arm to define a pair of rear control arms. 22. The snowmobile of claim 18, wherein the rear control arm is operably connected to the coupling member at a first pivot point and the coupling member includes an inverted link operably connected to the lower rail at a position above the first pivot point. 23. The snowmobile of claim 18, wherein the endless belt assembly includes first and second bump stops and the rear control arm is pivotally interconnected to the coupling member, the coupling member being moveable between the first and second bump stops, the coupling member being configured to exert a horizontal and vertical force on the second bump stop, the vertical force being greater than the horizontal force. 24. The snowmobile of claim 18, wherein the rear end of the lower rail includes an aperture and the belt tensioning system including a pair of rollers, a cross shaft, and a pair of links, the rollers coupled to the cross shaft and configured to support the belt, the cross shaft positioned in the aperture in the rear end of the lower rails, the links coupled between the coupling member and the cross shaft. 25. The snowmobile of claim 24, wherein the aperture in the rear end of the lower rail is an elongated slot. 26. The snowmobile of claim 18, wherein the rear control arms are coupled to the coupling member.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.