IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0515175
(2010-04-22)
|
등록번호 |
US-9511805
(2016-12-06)
|
우선권정보 |
KR-10-2009-0123208 (2009-12-11) |
국제출원번호 |
PCT/CA2010/000632
(2010-04-22)
|
§371/§102 date |
20130207
(20130207)
|
국제공개번호 |
WO2011/069233
(2011-06-16)
|
발명자
/ 주소 |
- Lajoie, Hugues
- Han, Cheol Hee
- Park, Sung Chan
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
130 |
초록
▼
An endless track for providing traction to a vehicle, such as a construction vehicle, an agricultural vehicle or other work vehicle. The endless track has: an inner side for facing a plurality of wheels of the vehicle; a ground-engaging outer side for engaging the ground; a first lateral edge; and a
An endless track for providing traction to a vehicle, such as a construction vehicle, an agricultural vehicle or other work vehicle. The endless track has: an inner side for facing a plurality of wheels of the vehicle; a ground-engaging outer side for engaging the ground; a first lateral edge; and a second lateral edge. The endless track comprises an elastomeric body and a plurality of cores at least partially embedded in the elastomeric body. Each core extends transversally to a longitudinal direction of the endless track to provide transverse rigidity to the endless track. The endless track comprises an impact absorber in a lateral edge part of the endless track, the lateral edge part being located between the cores and a given one of the first lateral edge and the second lateral edge. The impact absorber facilitates an elastic deformation of the lateral edge part when the lateral edge part impacts an obstacle on the ground. For example, in some embodiments, the impact absorber may comprise one or more holes which can deform when the lateral edge part impacts an obstacle on the ground.
대표청구항
▼
1. An endless track for providing traction to a vehicle, the endless track having: an inner side for facing a plurality of wheels of the vehicle; a ground-engaging outer side for engaging the ground; a first lateral edge; and a second lateral edge, the endless track comprising:an elastomeric body;a
1. An endless track for providing traction to a vehicle, the endless track having: an inner side for facing a plurality of wheels of the vehicle; a ground-engaging outer side for engaging the ground; a first lateral edge; and a second lateral edge, the endless track comprising:an elastomeric body;a plurality of cores at least partially embedded in the elastomeric body, each core extending transversally to a longitudinal direction of the endless track to provide transverse rigidity to the endless track; andan impact absorber in a lateral edge part of the endless track, the lateral edge part being located between the cores and a given one of the first lateral edge and the second lateral edge, the impact absorber facilitating an elastic deformation of the lateral edge part when the lateral edge part impacts an obstacle on the ground, the impact absorber comprising at least one hole, each of the at least one hole extending inwardly from the inner side and being deformable to facilitate the elastic deformation of the lateral edge part. 2. The endless track claimed in claim 1, wherein each of the at least one hole is shrinkable to facilitate the elastic deformation of the lateral edge part. 3. The endless track claimed in claim 1, wherein each of the at least one hole is configured to direct the elastic deformation of the lateral edge part. 4. The endless track claimed in claim 1, wherein each of the at least one hole has a dimension measured along a thickness direction of the endless track that is at least 5% of a thickness of the lateral edge part. 5. The endless track claimed in claim 1, wherein each of the at least one hole has a dimension measured along a thickness direction of the endless track that is at least 10% of a thickness of the lateral edge part. 6. The endless track claimed in claim 1, wherein each of the at least one hole has a dimension measured along a widthwise direction of the endless track that is at least 5% of a width of the lateral edge part. 7. The endless track claimed in claim 1, wherein each of the at least one hole has a dimension measured along a widthwise direction of the endless track that is at least 10% of a width of the lateral edge part. 8. The endless track claimed in claim 1, wherein each of the at least one hole is delimited by elastomeric material of the lateral edge part, each of the at least one hole containing a filler different from the elastomeric material of the lateral edge part. 9. The endless track claimed in claim 8, wherein the filler has a modulus of elasticity lower than a modulus of elasticity of the elastomeric material of the lateral edge part. 10. The endless track claimed in claim 9, wherein the filler includes an elastomer. 11. The endless track claimed in claim 8, wherein the filler has a hardness lower than a hardness of the elastomeric material of the lateral edge part. 12. The endless track claimed in claim 8, wherein the filler includes a fluid confined in the endless track. 13. The endless track claimed in claim 1, wherein the at least one hole comprises a plurality of holes distributed along the longitudinal direction of the endless track. 14. The endless track claimed in claim 13, wherein at least two of the holes are spaced apart from one another along a widthwise direction of the endless track. 15. The endless track claimed in claim 13, wherein respective ones of the holes are aligned with corresponding ones of the cores. 16. The endless track claimed in claim 1, wherein the elastomeric body comprises elastomeric material in which the cores are at least partially embedded, the impact absorber comprising elastic material different from the elastomeric material in which the cores are at least partially embedded. 17. The endless track claimed in claim 16, wherein the elastic material of the impact absorber has a modulus of elasticity lower than a modulus of elasticity of the elastomeric material in which the cores are at least partially embedded. 18. The endless track claimed in claim 17, wherein the elastic material comprises an elastomer. 19. The endless track claimed in claim 16, wherein the elastic material of the impact absorber has a hardness lower than a hardness of the elastomeric material in which the cores are at least partially embedded. 20. The endless track claimed in claim 1, wherein the impact absorber is a first impact absorber, the lateral edge part is a first lateral edge part, and the given one of the first lateral edge and the second lateral edge is the first lateral edge, the endless track comprising a second impact absorber in a second lateral edge part of the endless track, the second lateral edge part being located between the cores and the second lateral edge, the second impact absorber facilitating an elastic deformation of the second lateral edge part when the second lateral edge part impacts an obstacle on the ground the second impact absorber comprising at least one hole, each of the at least one hole of the second impact absorber extending inwardly from the inner side and being deformable to facilitate the elastic deformation of the second lateral edge part. 21. The endless track claimed in claim 20, wherein the at least one hole of the first impact absorber comprises a plurality of holes distributed along the longitudinal direction of the endless track and the at least one hole of the second impact absorber comprises a plurality of holes distributed along the longitudinal direction of the endless track. 22. The endless track claimed in claim 1, wherein each core comprises a pair of wings and a wheel guide, the wheel guide comprising at least one projection on the inner side. 23. An endless track for providing traction to a vehicle, the endless track having: an inner side for facing a plurality of wheels of the vehicle; a ground-engaging outer side for engaging the ground; a first lateral edge; and a second lateral edge, the endless track comprising:an elastomeric body;a plurality of cores at least partially embedded in the elastomeric body, each core extending transversally to a longitudinal direction of the endless track to provide transverse rigidity to the endless track; anda hole in a lateral edge part of the endless track, the lateral edge part being located between the cores and a given one of the first lateral edge and the second lateral edge, the hole extending inwardly from the inner side and being deformable when the lateral edge part impacts an obstacle on the ground. 24. The endless track claimed in claim 23, wherein the hole is shrinkable when the lateral edge part impacts the obstacle on the ground. 25. The endless track claimed in claim 23, wherein the hole is configured to direct an elastic deformation of the lateral edge part when the lateral edge part impacts the obstacle on the ground. 26. The endless track claimed in claim 23, wherein the lateral edge part is a first lateral edge part and the given one of the first lateral edge and the second lateral edge is the first lateral edge, the endless track comprising a hole in a second lateral edge part of the endless track, the second lateral edge part being located between the cores and the second lateral edge, the hole of the second lateral edge part extending inwardly from the inner side and being deformable when the second lateral edge part impacts an obstacle on the ground. 27. The endless track claimed in claim 26, wherein the hole of the first lateral edge part is one of a plurality of holes of the first lateral edge part, the holes of the first lateral edge part being distributed along the longitudinal direction of the endless track, the hole of the second lateral edge part being one of a plurality of holes of the second lateral edge part, the holes of the second lateral edge part being distributed along the longitudinal direction of the endless track. 28. The endless track claimed in claim 23, wherein each core comprises a pair of wings and a wheel guide, the wheel guide comprising at least one projection on the inner side. 29. The endless track claimed in claim 23, wherein the hole has a dimension measured along a thickness direction of the endless track that is at least 5% of a thickness of the lateral edge part. 30. The endless track claimed in claim 23, wherein the hole has a dimension measured along a thickness direction of the endless track that is at least 10% of a thickness of the lateral edge part. 31. The endless track claimed in claim 23, wherein the hole has a dimension measured along a widthwise direction of the endless track that is at least 5% of a width of the lateral edge part. 32. The endless track claimed in claim 23, wherein the hole has a dimension measured along a widthwise direction of the endless track that is at least 10% of a width of the lateral edge part. 33. The endless track claimed in claim 23, wherein the hole is delimited by elastomeric material of the lateral edge part and contains a filler different from the elastomeric material of the lateral edge part. 34. The endless track claimed in claim 33, wherein the filler has a modulus of elasticity lower than a modulus of elasticity of the elastomeric material of the lateral edge part. 35. The endless track claimed in claim 33, wherein the filler includes an elastomer. 36. The endless track claimed in claim 33, wherein the filler has a hardness lower than a hardness of the elastomeric material of the lateral edge part. 37. The endless track claimed in claim 23, wherein the hole is one of a plurality of holes of the lateral edge part that are distributed along the longitudinal direction of the endless track and extend inwardly from the inner side. 38. The endless track claimed in claim 37, wherein at least two of the holes are spaced apart from one another along a widthwise direction of the endless track. 39. The endless track claimed in claim 37, wherein respective ones of the holes are aligned with corresponding ones of the cores. 40. An endless track for providing traction to a vehicle, the endless track having: an inner side for facing a plurality of wheels of the vehicle; a ground-engaging outer side for engaging the ground; a first lateral edge; and a second lateral edge, the endless track comprising:an elastomeric body;a plurality of cores at least partially embedded in the elastomeric body, each core extending transversally to a longitudinal direction of the endless track to provide transverse rigidity to the endless track;a plurality of holes in a first lateral edge part of the endless track, the first lateral edge part being located between the first lateral edge and the cores, the holes of the first lateral edge part extending inwardly from a periphery of the endless track and being distributed along the longitudinal direction of the endless track; anda plurality of holes in a second lateral edge part of the endless track, the second lateral edge part being located between the second lateral edge and the cores, the holes of the second lateral edge part extending inwardly from the inner side of the endless track and being distributed along the longitudinal direction of the endless track. 41. The endless track claimed in claim 40, wherein each of the holes of the first lateral edge part is shrinkable when the first lateral edge part impacts an obstacle on the ground and each of the holes of the second lateral edge part is shrinkable when the second lateral edge part impacts an obstacle on the ground. 42. The endless track claimed in claim 40, wherein each of the holes of the first lateral edge part has a dimension measured along a thickness direction of the endless track that is at least 5% of a thickness of the first lateral edge part and each of the holes of the second lateral edge part has a dimension measured along the thickness direction of the endless track that is at least 5% of a thickness of the second lateral edge part. 43. The endless track claimed in claim 40, wherein each of the holes of the first lateral edge part has a dimension measured along a thickness direction of the endless track that is at least 10% of a thickness of the first lateral edge part and each of the holes of the second lateral edge part has a dimension measured along the thickness direction of the endless track that is at least 10% of a thickness of the second lateral edge part. 44. The endless track claimed in claim 40, wherein each of the holes of the first lateral edge part has a dimension measured along a widthwise direction of the endless track that is at least 5% of a width of the first lateral edge part and each of the holes of the second lateral edge part has a dimension measured along the widthwise direction of the endless track that is at least 5% of a width of the second lateral edge part. 45. The endless track claimed in claim 40, wherein each of the holes of the first lateral edge part has a dimension measured along a widthwise direction of the endless track that is at least 10% of a width of the first lateral edge part and each of the holes of the second lateral edge part has a dimension measured along the widthwise direction of the endless track that is at least 10% of a width of the second lateral edge part. 46. The endless track claimed in claim 40, wherein each of the holes of the first lateral edge part is delimited by elastomeric material of the first lateral edge part and contains a filler different from the elastomeric material of the first lateral edge part. 47. The endless track claimed in claim 46, wherein the filler has a modulus of elasticity lower than a modulus of elasticity of the elastomeric material of the first lateral edge part. 48. The endless track claimed in claim 46, wherein the filler includes an elastomer. 49. The endless track claimed in claim 46, wherein the filler has a hardness lower than a hardness of the elastomeric material of the first lateral edge part. 50. The endless track claimed in claim 40, wherein respective ones of the holes of the first lateral edge part and respective ones of the holes of the second lateral edge part are aligned with corresponding ones of the cores. 51. The endless track claimed in claim 40, wherein each core comprises a pair of wings and a wheel guide, the wheel guide comprising at least one projection on the inner side.
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