IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0171056
(2011-06-28)
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등록번호 |
US-8328212
(2012-12-11)
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발명자
/ 주소 |
- Dundon, Christopher Brian
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
3 인용 특허 :
14 |
초록
▼
The disclosed subject matter relates to a suspension system for use on a vehicle that includes a knuckle, a first trailing arm structure, a second trailing arm structure, an upper arm structure, and a lower arm structure. The first trailing arm structure and second trailing arm structure can be conf
The disclosed subject matter relates to a suspension system for use on a vehicle that includes a knuckle, a first trailing arm structure, a second trailing arm structure, an upper arm structure, and a lower arm structure. The first trailing arm structure and second trailing arm structure can be configured to extend in a frontward direction from the knuckle to a connection at a forward portion of a vehicle frame. The upper and lower arm structures can be configured to extend substantially transversely with respect to the vehicle longitudinal axis and connect to a rearward portion of the vehicle frame. The second trailing arm structure can cross underneath the lower arm structure as viewed from a direction normal to a plane defined by the central axis and horizontal axis of the knuckle, such that the second trailing arm structure is located closer to the travel surface of the vehicle than the lower arm structure at a location where the second trailing arm structure crosses underneath the lower arm structure.
대표청구항
▼
1. A suspension system for use on a vehicle, comprising: a knuckle configured to be attached to a vehicle wheel and including an aperture having a central axis that corresponds with a rotational axis of the vehicle wheel when the vehicle wheel is attached to the knuckle, the knuckle configured to be
1. A suspension system for use on a vehicle, comprising: a knuckle configured to be attached to a vehicle wheel and including an aperture having a central axis that corresponds with a rotational axis of the vehicle wheel when the vehicle wheel is attached to the knuckle, the knuckle configured to be mounted to a vehicle frame such that a vertical axis of the knuckle and a horizontal axis of the knuckle each intersect the central axis of the knuckle and are perpendicular to the central axis and to each other, the horizontal axis separating an upper portion of the knuckle from a lower portion of the knuckle, the upper portion of the knuckle being spaced further from a travel surface than the lower portion of the knuckle when the vehicle suspension system is mounted to the vehicle and the vehicle is located on the travel surface, the lower portion of the knuckle including a lowermost portion of the knuckle that is closer to the travel surface than any other portion of the knuckle, and the vertical axis separating a front portion of the knuckle from a rear portion of the knuckle;a first trailing arm structure extending in a frontward direction from the knuckle and connected to the knuckle via a first connector that has a rotational axis and the first trailing arm structure is configured to rotate about the rotational axis of the first connector;a second trailing arm structure extending in a frontward direction from the knuckle and connected to the knuckle via a second connector that has a rotational axis and the second trailing arm structure is configured to rotate about the rotational axis of the second connector, the second connector located closer to the lowermost portion of the knuckle than the first connector;a lower arm structure extending in a substantially transverse direction from the knuckle and connected to the knuckle via a lower connector such that the lower arm structure is configured to rotate about a rotational axis of the lower connector; andan upper arm structure extending in a substantially transverse direction from the knuckle and connected to the knuckle via an upper connector such that the upper arm structure is configured to rotate about a rotational axis of the upper connector, the upper connector located a greater distance from the lowermost portion of the knuckle than the lower connector, whereinthe second trailing arm structure crosses above the lower arm structure at a crossing location as viewed from a direction normal to a plane defined by the central axis and the horizontal axis of the knuckle, such that the second trailing arm structure is located further from the travel surface than the lower arm structure at the crossing location where the second trailing arm structure crosses above the lower arm structure. 2. The suspension system of claim 1, wherein at least one of the first trailing arm and the second trailing arm includes a tubular portion. 3. The suspension system of claim 1, further comprising: a vehicle frame extending in a longitudinal direction of the vehicle from a frame rearward portion to a frame forward portion, the frame rearward portion located closer to a rear of the vehicle than the frame forward portion, whereinthe first trailing arm structure and second trailing arm structure extend and connect to the frame forward portion. 4. The suspension system of claim 3, wherein the upper arm structure and lower arm structure extend and connect to the frame rearward portion. 5. The suspension system of claim 3, wherein the first trailing arm structure connects to the frame forward portion at a first location and the second trailing arm structure connects to the frame forward portion at a second location, the second location being closer to the travel surface than the first location when the vehicle is located on the travel surface. 6. The suspension system of claim 5, wherein the first trailing arm structure connects to the frame forward portion via a first frame connection structure, and the first frame connection structure has a rotational axis substantially parallel with the central axis of the knuckle such that the first trailing arm structure is rotatable about the first frame connection structure rotational axis. 7. The suspension system of claim 3, wherein the first trailing arm structure connects to the frame forward portion via a first frame connection structure and the first frame connection structure has a rotational axis substantially parallel with the central axis of the knuckle, the first trailing arm structure is rotatable about the first frame connection structure rotational axis. 8. The suspension system of claim 1, wherein the rotational axis of the first connector is spaced from and extends substantially parallel with the rotational axis of the second connector. 9. The suspension system of claim 1, wherein the rotational axis of the lower connector of the lower arm structure is substantially parallel with the horizontal axis of the knuckle. 10. The suspension system of claim 1, wherein the rotational axis of the upper connector of the upper arm structure is substantially parallel with the vertical axis of the knuckle. 11. The suspension system of claim 1, wherein the rotational axis of the first connector is substantially parallel with the central axis of the knuckle. 12. The suspension system of claim 1, wherein the rotational axis of the second connector is substantially parallel with the central axis of the knuckle. 13. The suspension system of claim 1, wherein the crossing location is defined by an imaginary linear line that is normal to the plane defined by the central axis and horizontal axis of the knuckle and which intersects both the second trailing arm and the lower arm structure. 14. A suspension system for use on a vehicle, comprising: a knuckle configured to be attached to a vehicle wheel and including an aperture having a central axis that corresponds with a rotational axis of the vehicle wheel when the vehicle wheel is attached to the knuckle, the knuckle configured to be mounted to a vehicle frame such that a vertical axis of the knuckle and a horizontal axis of the knuckle each intersect the central axis of the knuckle and are perpendicular to the central axis and to each other, the horizontal axis separating an upper portion of the knuckle from a lower portion of the knuckle, the upper portion of the knuckle being spaced further from a travel surface than the lower portion of the knuckle when the vehicle suspension system is mounted to the vehicle and the vehicle is placed on the travel surface, the lower portion of the knuckle including a lowermost portion of the knuckle that is closer to the travel surface than any other portion of the knuckle, and the vertical axis separating a front portion of the knuckle from a rear portion of the knuckle;a first trailing arm structure extending in a frontward direction from the knuckle and connected to the knuckle via a first connector that has a rotational axis, the first trailing arm structure being configured to rotate about the rotational axis of the first connector;a second trailing arm structure extending in a frontward direction from the knuckle and connected to the knuckle via a second connector that has a rotational axis, the second trailing arm structure being configured to rotate about the rotational axis of the second connector, and the second connector located closer to the lowermost portion of the knuckle than the first connector;a lower arm structure extending in a substantially transverse direction from the knuckle and connected to the knuckle via a lower connector such that the lower arm structure is configured to rotate about a rotational axis of the lower connector; andan upper arm structure extending in a substantially transverse direction from the knuckle and connected to the knuckle via an upper connector such that the upper arm structure is configured to rotate about a rotational axis of the upper connector, the upper connector located a greater distance from the lowermost portion of the knuckle than the lower connector, whereinthe second connector is located closer to the central axis of the knuckle than the lower connector in both a vertical axis direction and a horizontal axis direction. 15. The suspension system of claim 14, wherein at least one of the first trailing arm and the second trailing arm includes a tubular portion. 16. The suspension system of claim 14, further comprising: a vehicle frame extending in a longitudinal direction of the vehicle from a frame rearward portion to a frame forward portion, the frame rearward portion located closer to a rear of the vehicle than the frame forward portion, whereinthe first trailing arm structure and second trailing arm structure extend and connect to the frame forward portion. 17. The suspension system of claim 16, wherein the upper arm structure and lower arm structure extend and connect to the frame rearward portion. 18. The suspension system of claim 16, wherein the first trailing arm structure connects to the frame forward portion at a first location and the second trailing arm structure connects to the frame forward portion at a second location, the second location being closer to the travel surface than the first location when the vehicle is located on the travel surface. 19. The suspension system of claim 17, wherein the first trailing arm structure connects to the frame forward portion via a first frame connection structure, and the first frame connection structure has a rotational axis substantially parallel with the central axis of the knuckle, the first trailing arm structure being rotatable about the first frame connection structure rotational axis. 20. The suspension system of claim 14, wherein the rotational axis of the first connector is spaced from and extends substantially parallel with the rotational axis of the second connector. 21. The suspension system of claim 14, wherein the rotational axis of the lower connector of the lower arm structure is substantially parallel with the horizontal axis of the knuckle. 22. The suspension system of claim 14, wherein the rotational axis of the upper connector of the upper arm structure is substantially parallel with the vertical axis of the knuckle. 23. The suspension system of claim 14, wherein the rotational axis of the first connector and the rotational axis of the second connector are substantially parallel with the central axis of the knuckle. 24. The suspension system of claim 14, wherein the horizontal axis and vertical axis divide the knuckle into an upper front quadrant, a lower front quadrant, an upper rear quadrant, and a lower rear quadrant, and the second connector for the second trailing arm is located in the lower rear quadrant, the lower connector for the lower arm structure is located in the lower front quadrant. 25. The suspension system of claim 24, further comprising a second lower arm extending in a substantially transverse direction from the knuckle and connected to the knuckle via a second lower connector such that the lower arm structure is configured to rotate about a rotational axis of the second lower connector, the second lower connector located in the lower rear quadrant. 26. The suspension system of claim 14, further comprising a second lower arm extending in a substantially transverse direction from the knuckle and connected to the knuckle via a second lower connector such that the lower arm structure is configured to rotate about a rotational axis of the second lower connector.
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