A suspension apparatus of a multi-axle vehicle capable of realizing high traveling stability is provided. For this purpose, the suspension apparatus forms a quadric link structure (31) by a vehicle body (9), a front link (21) with an upper end portion being connected to the vehicle body with a pin a
A suspension apparatus of a multi-axle vehicle capable of realizing high traveling stability is provided. For this purpose, the suspension apparatus forms a quadric link structure (31) by a vehicle body (9), a front link (21) with an upper end portion being connected to the vehicle body with a pin and a lower end portion being in a vicinity of a front axle, a rear link (22) with an upper end portion being connected to the vehicle body with a pin and a lower end portion located in a vicinity of a rear axle, and a connecting link (1) for connecting portions in vicinities of respective lower end portions of the front and rear links, and a side length at a side of the connecting link is made shorter than a side length at a vehicle body side.
대표청구항▼
What is claimed is: 1. A suspension apparatus of a multi-axle vehicle having at least three tire axles, comprising: i) a front link including an upper end portion connected to a vehicle body with a pin, and a lower end portion in a vicinity of a front axle, ii) a rear link including an upper end p
What is claimed is: 1. A suspension apparatus of a multi-axle vehicle having at least three tire axles, comprising: i) a front link including an upper end portion connected to a vehicle body with a pin, and a lower end portion in a vicinity of a front axle, ii) a rear link including an upper end portion connected to said vehicle body with a pin, and a lower end portion in a vicinity of a rear axle adjacent to said front axle, and iii) a connecting link for longitudinally connecting portions in vicinities of the respective lower end portions of said front link and said rear link so as to pair said front axle and said rear axle; wherein said vehicle body, said front link, said rear link and said connecting link form a quadric link structure, and said suspension apparatus comprises at least one said quadric link structure; and wherein a side length of said connecting link is shorter than a side length of said vehicle body. 2. The suspension apparatus of the multi-axle vehicle according to claim 1, wherein said connecting link is adjustable in length. 3. The suspension apparatus of the multi-axle vehicle according to claim 2, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of said quadric link structure is provided at least one of between said vehicle body and said front link and between said vehicle body and said rear link. 4. The suspension apparatus of the multi-axle vehicle according to claim 1, wherein said connecting link comprises a suspension link which extends and contracts in length in accordance with a load. 5. The suspension apparatus of the multi-axle vehicle according to claim 4, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of said quadric link structure is provided at least one of between said vehicle body and said front link and between said vehicle body and said rear link. 6. The suspension apparatus of the multi-axle vehicle according to claim 1, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of said quadric link structure is provided at least one of between said vehicle body and said front link and between said vehicle body and said rear link. 7. The suspension apparatus of the multi-axle vehicle according to claim 1, further comprising: a suspension cylinder which is provided between said vehicle body and said front link, and which controls rotation of said front link; and a suspension cylinder which is provided between said vehicle body and said rear link, and which controls rotation of said rear link, wherein a length of said connecting link is selected to be one of a locked or controlled state, and a freely opened state. 8. The suspension apparatus of the multi-axle vehicle according to claim 1, further comprising one of a crawler belt or a chain which is wound around respective tired wheels of at least one of said pair of said front axle and said rear axle. 9. The suspension apparatus of the multi-axle vehicle according to claim 1, wherein said front axle is mounted to a vicinity of a front joint at a lower side of said quadric link structure and said rear axle is mounted to a vicinity of a rear joint at the lower side of said quadric link structure. 10. The suspension apparatus of the multi-axle vehicle according to claim 9, wherein said connecting link is adjustable in length. 11. The suspension apparatus of the multi-axle vehicle according to claim 10, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of said quadric link structure is provided at least one of between said vehicle body and said front link and between said vehicle body and said rear link. 12. The suspension apparatus off the multi-axle vehicle according to claim 9, wherein said connecting link comprises a suspension link which extends and contracts in length in accordance with a load. 13. The suspension apparatus of the multi-axle vehicle according to claim 12, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of said quadric link structure is provided at least one of between said vehicle body and said front link and between said vehicle body and said rear link. 14. The suspension apparatus of the multi-axle vehicle according to claim 9, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of said quadric link structure is provided at least one of between said vehicle body and said front link and between said vehicle body and said rear link. 15. The suspension apparatus of the multi-axle vehicle according to claim 9, further comprising: a suspension cylinder which is provided between said vehicle body and said front link, and which controls rotation of said front link; and a suspension cylinder which is provided between said vehicle body and said rear link, and which controls rotation of said rear link, wherein a length of said connecting link is selected to be one of a locked or controlled state, and a freely opened state. 16. The suspension apparatus of the multi-axle vehicle according to claim 9, further comprising one of a crawler belt and a chain which is wound around respective tired wheels of at least one said pair of said front axle and said rear axle. 17. A suspension apparatus of a multi-axle vehicle having at least four tire axles, comprising: i) a plurality of front links, each of which includes an upper end portion connected to a vehicle body with pins, and a lower end portion in a vicinity of a respective front axle, ii) a plurality of rear links, each of which includes an upper end portion connected to said vehicle body with pins, and a lower end portion in a vicinity of a respective rear axle, and iii) a plurality of connecting links, each of which longitudinally connects portions in vicinities of the respective lower end portions of a respective one of said front links and a respective one of said rear links so as to pair respective front axles and respective rear axles of at least two pairs of said axles, such that said at least four axles form a pair at a forefront of the vehicle and a pair at a rear end of the vehicle, with a first axle and a second axle from a front of the vehicle forming the pair at the forefront, and a second axle and a first axle from a rear of said vehicle forming the pair at the rear end; wherein a plurality of quadric link structures are each formed by said vehicle body, a respective front link, a respective rear link and a respective connecting link, and wherein respective side lengths of said connecting links are shorter then respective side lengths of said vehicle body. 18. The suspension apparatus of the multi-axle vehicle according to claim 17, wherein said at least four tire axles comprise at least six tire axles; and wherein at least one pair of an adjacent front axle and rear axle is formed in a middle portion of said vehicle between said pair at the forefront and said pair at the rear end. 19. The suspension apparatus of the multi-axle vehicle according to claim 18, wherein at least one of said connecting links is adjustable in length. 20. The suspension apparatus of the multi-axle vehicle according to claim 19, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of at least one of said quadric link structures is provided at least one of between said vehicle body and a respective one of said front links and between said vehicle body and a respective one of said rear links. 21. The suspension apparatus of the multi-axle vehicle according to claim 18, wherein at least one of said connecting links comprises a suspension link which extends and contracts in length in accordance with a lead. 22. The suspension apparatus of the multi-axle vehicle according to claim 21, wherein one of a hydraulic cylinder and suspension cylinder for controlling an attitude of at least one of said quadric link structures is provided at least one of between said vehicle body and a respective one of said front links and between said vehicle body and a respective one of said rear links. 23. The suspension apparatus of the multi-axle vehicle according to claim 18, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of at least one of said quadric link structures is provided at least one of between said vehicle body and a respective one of said front links and between said vehicle body and a respective one of said rear links. 24. The suspension apparatus of the multi-axle vehicle according to claim 18, further comprising: a suspension cylinder which is provided between said vehicle body and a respective one of said front links, and which controls rotation of said respective front links; and a suspension cylinder which is provided between said vehicle body and a respective one of said rear links, and which controls rotation of said rear link, wherein a length of said connecting links is selected to be one of a locked or controlled state, and a freely opened state. 25. The suspension apparatus of the multi-axle vehicle according to claim 18, further comprising one of a crawler belt and a chain which is wound around respective tired wheels of at least one said pair of said front axle and said rear axle. 26. The suspension apparatus of the multi-axle vehicle according to claim 17, wherein at least one of said connecting links is adjustable in length. 27. The suspension apparatus of the multi-axle vehicle according to claim 26, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of at least one of said quadric link structures is provided at least one of between said vehicle body and a respective one of said front links and between said vehicle body and a respective one of said rear links. 28. The suspension apparatus of the multi-axle vehicle according to claim 17, wherein at least one of said connecting links comprises a suspension link which extends and contracts in length in accordance with a load. 29. The suspension apparatus of the multi-axle vehicle according to claim 28, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of at least one of said quadric link structures is provided at least one of between said vehicle body and a respective one of said front links and end between said vehicle body and a respective one of said rear links. 30. The suspension apparatus of the multi-axle vehicle according to claim 17, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of at least one of said quadric link structures is provided at least one of between said vehicle body and a respective one of said front links and between said vehicle body and a respective one of said rear links. 31. The suspension apparatus of the multi-axle vehicle according to claim 17, further comprising: a suspension cylinder which is provided between said vehicle body and a respective one of said front links, and which controls rotation of said respective front links; and a suspension cylinder which is provided between said vehicle body and a respective one of said rear links, and which controls rotation of said respective rear link, wherein a length of said connecting links is selected to be one of a locked or controlled state, and a freely opened state. 32. The suspension apparatus of the multi-axle vehicle according to claim 17, further comprising one of a crawler belt and a chain which is wound around respective tired wheels of at least one said pair of said front axle and said rear axle. 33. The suspension apparatus of the multi-axle vehicle according to claim 17, wherein said respective front axles are mounted to vicinities of front joints at lower sides of respective quadric link structures and said respective rear axles are mounted to vicinities of rear joints at the lower sides of said respective quadric link structures. 34. The suspension apparatus of the multi-axle vehicle according to claim 33, wherein said at least four tire axles comprise at least six tire axles; and wherein at least one pair of an adjacent front axle and rear axle is formed in a middle portion of said vehicle between said pair at the forefront and said pair at the rear end. 35. The suspension apparatus of the multi-axle vehicle according to claim 34, wherein at least one of said connecting links is adjustable in length. 36. The suspension apparatus of the multi-axle vehicle according to claim 35, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of at least one of said quadric link structures is provided at least one of between said vehicle body and a respective one of said front links and between said vehicle body and a respective one of said rear links. 37. The suspension apparatus of the multi-axle vehicle according to claim 34, wherein at least one of said connecting links comprises a suspension link which extends and contracts in length in accordance with a load. 38. The suspension apparatus of the multi-axle vehicle according to claim 37, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of at least one of said quadric link structures is provided at least one of between said vehicle body and a respective one of said front links and between said vehicle body and a respective one of said rear links. 39. The suspension apparatus of the multi-axle vehicle according to claim 34, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of at least one of said quadric link structures is provided at least one of between said vehicle body and a respective one of said front links and between said vehicle body and a respective one of said rear links. 40. The suspension apparatus of the multi-axle vehicle according to claim 34, further comprising: a suspension cylinder which is provided between said vehicle body and a respective one of said front links, and which controls rotation of said respective front link; and a suspension cylinder which is provided between said vehicle body and a respective one of said rear links, and which controls rotation of said respective rear link, wherein a length of said connecting links is selected to be one of a locked or controlled state, and a freely opened state. 41. The suspension apparatus of the multi-axle vehicle according to claim 34, further comprising one of a crawler belt and a chain which is wound around respective tired wheels of at least one said pair of said front axle and said roar axle. 42. The suspension apparatus of the multi-axle vehicle according to claim 33, wherein at least one of said connecting links is adjustable in length. 43. The suspension apparatus of the multi-axle vehicle according to claim 42, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of at least one of said quadric link structures is provided at least one of between said vehicle body and a respective one of said front links and between said vehicle body and a respective one of said rear links. 44. The suspension apparatus of the multi-axle vehicle according to claim 33, wherein at least one of said connecting links comprises a suspension link which extends and contracts in length in accordance with a load. 45. The suspension apparatus of the multi-axle vehicle according to claim 44, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of at least one of said quadric link structures is provided at least one of between said vehicle body and a respective one of said front links and between said vehicle body and a respective one of said rear links. 46. The suspension apparatus of the multi-axle vehicle according to claim 33, wherein one of a hydraulic cylinder and a suspension cylinder for controlling an attitude of at least one of said quadric link structures is provided at least one of between said vehicle body and a respective one of said front links and between said vehicle body and a respective one of said rear links. 47. The suspension apparatus of the multi-axle vehicle according to claim 33, further comprising: a suspension cylinder which is provided between said vehicle body and a respective one of said front links, and which controls rotation of said respective front link; and a suspension cylinder which is provided between said vehicle body and a respective one of said rear links, and which controls rotation of said respective rear link, wherein a length of said connecting links is selected to be one of a locked or controlled state, and a freely opened state. 48. The suspension apparatus of the multi-axle vehicle according to claim 33, further comprising one of a crawler belt and a chain which is wound around respective tired wheels of at least one said pair of said front axle and said rear axle.
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이 특허에 인용된 특허 (11)
Purcell Robert J. (Washington IL), Belted vehicle suspension system.
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