Vehicle suspension systems for seperated acceleration responses

DC CAFC

US 7,717,212 B2
Filed: 08/25/2006
Issued: 05/18/2010
Est. Priority Date: 08/25/2006
Status: Expired due to Fees

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First Claim

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1. A suspension system for a vehicle comprising a wheel link floating pivot, a control link fixed pivot, a wheel rotation axis, a wheel link, a brake link and a shock absorber, wherein said wheel link floating pivot is concentric with said wheel rotation axis;

wherein said shock absorber is mounted to a link selected from the group consisting of a brake link, a control link, and a wheel link;

wherein said shock absorber is selected from the group consisting of a compression gas spring, a leaf spring, a coil spring, and a fluid; and

wherein force that compresses said shock absorber is transmitted through said brake link; and

wherein said brake link passes on two sides of a frame member.

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Abstract

The invention relates to suspension systems comprising, in certain embodiments, a pivoting means concentric to a wheel rotation axis so that braking forces can be controlled by placement of an instant force center, and so that acceleration forces can be controlled by a swinging wheel link.

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64 Claims

1. A suspension system for a vehicle comprising a wheel link floating pivot, a control link fixed pivot, a wheel rotation axis, a wheel link, a brake link and a shock absorber, wherein said wheel link floating pivot is concentric with said wheel rotation axis;
- wherein said shock absorber is mounted to a link selected from the group consisting of a brake link, a control link, and a wheel link;
  
  wherein said shock absorber is selected from the group consisting of a compression gas spring, a leaf spring, a coil spring, and a fluid; and
  
  wherein force that compresses said shock absorber is transmitted through said brake link; and
  
  wherein said brake link passes on two sides of a frame member.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
- - 2. The suspension system of claim 1, said suspension system further comprising, a control link floating pivot and a wheel link fixed pivot.
  - 3. The suspension system of claim 1, said suspension system further comprising a wheel link fixed pivot and a control link floating pivot.
  - 4. The suspension system of claim 3, said suspension system further comprising an instant center that is further to the front of the vehicle than the shock absorber when the suspension is uncompressed.
  - 5. The suspension system of claim 3, said suspension system further comprising an instant center that is below the shock absorber when the suspension is uncompressed.
  - 6. The suspension system of claim 3, said suspension system further comprising an instant center that is closer to the ground when the suspension is fully compressed compared to the when the suspension is uncompressed.
  - 7. The suspension system of claim 3, said suspension system further comprising an instant center that has a first perpendicular distance to the ground when the suspension is uncompressed and a second perpendicular distance to the ground when the suspension is compressed.
  - 8. The suspension of claim 7, wherein the second perpendicular distance of the instant center to the ground is measured when the suspension is 50 percent compressed.
  - 9. The suspension of claim 7, wherein the second perpendicular distance of the instant center to the ground is measured when the suspension is fully compressed.
  - 10. The suspension of claim 7, where the difference between first perpendicular distance and second perpendicular distance is from 0 to 10000 m.
  - 11. The suspension system of claim 3, said suspension system further comprising a control link force line that descends from the rear to the front of the vehicle at an angle of 0 to 50 degrees when the suspension is uncompressed and the vehicle is on even ground.
  - 12. The suspension system of claim 3, said suspension system further comprising a control link force line that is at an angle of minus 30 to plus 30 degrees relative to the ground when the suspension is uncompressed and the vehicle is on even ground.
  - 13. The suspension system of claim 3, said suspension system further comprising a wheel link force line that ascends from the rear to the front of the vehicle at an angle of 0 to 50 degrees when the suspension is uncompressed and the vehicle is on even ground.
  - 14. The suspension system of claim 3, said suspension system further comprising a wheel link force line that is at an angle of minus 10 to plus 10 degrees relative to the ground when the suspension is uncompressed and the vehicle is on even ground.
  - 15. The suspension system of claim 3, said suspension system further comprising a wheel link force line that projects from the rear to the front of the vehicle at an angle of −
    - 15 to 45 degrees when the suspension is uncompressed and the vehicle is on even ground.
  - 16. The suspension system of claim 3, said suspension system further comprising a control link force line that descends from the rear to the front of the vehicle at an angle of 0 to 60 degrees when the vehicle is on even ground and the suspension is fully compressed.
  - 17. The suspension system of claim 3, said suspension system further comprising a wheel link force line that descends from the rear to the front of the vehicle at an angle of 0 to 30 degrees when the vehicle is on even ground and the suspension is fully compressed.
  - 18. The suspension system of claim 3, said suspension system further comprising a wheel link force line that projects from the rear to the front of the vehicle at an angle of −
    - 30 to 30 degrees when the vehicle is on even ground and the suspension is fully compressed.
  - 19. The suspension system of claim 1, wherein said wheel link and said brake link are arranged at an angle of 10 to 60 degrees when the suspension is uncompressed and the vehicle is on even ground.
  - 20. The suspension system of claim 1, wherein said wheel link is 5 to 20 percent shorter than said brake link.
  - 21. The suspension system of claim 1, said suspension system further comprising a control link that is 2 to 25 cm in length.

22. A suspension system for a vehicle comprising a wheel link floating pivot, a control link fixed pivot, a wheel rotation axis, a wheel link, a brake link, a control link and a shock absorber, wherein said wheel link floating pivot is concentric with said wheel rotation axis and where said wheel link and said control link are arranged so that an instant center of the suspension system is located below the control link when the suspension is uncompressed and the vehicle is on even ground;
- wherein said shock absorber is mounted to a link selected from the group consisting of a brake link, a control link, and a wheel link;
  
  wherein force that compresses said shock absorber is transmitted though said brake link;
  
  wherein said shock absorber is selected from the group consisting of a compression gas spring, a leaf spring, a coil spring, and a fluid; and
  
  wherein said suspension system further comprises a wheel link fixed pivot, a control link floating pivot and a control link fixed pivot.
- View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
- - 23. The suspension system of claim 22, said suspension system further comprising a control link floating pivot and a wheel link fixed pivot.
  - 24. The suspension system of claim 22, said suspension system further comprising an instant center that is further to the front of the vehicle than the shock absorber when the suspension is uncompressed and the vehicle is on even ground.
  - 25. The suspension system of claim 22, said suspension system further comprising an instant center that is below the shock absorber when the suspension is uncompressed and the vehicle is on even ground.
  - 26. The suspension system of claim 22, said suspension system further comprising an instant center that is closer to the ground when the suspension is fully compressed compared to the when the suspension is uncompressed and the vehicle is on even ground.
  - 27. The suspension system of claim 22, said suspension system further comprising an instant center that has a first perpendicular distance to the ground when the suspension is uncompressed and a second perpendicular distance to the ground when the suspension is compressed.
  - 28. The suspension of claim 27, wherein the second perpendicular distance of the instant center to the ground is measured when the suspension is 50 percent compressed.
  - 29. The suspension of claim 27, wherein the second perpendicular distance of the instant center to the ground is measured when the suspension is fully compressed.
  - 30. The suspension of claim 27, where the difference between first perpendicular distance and second perpendicular distance is from 0 to 10000 m.
  - 31. The suspension system of claim 22, said suspension system further comprising a control link force line that descends from the rear to the front of the vehicle at an angle of 0 to 50 degrees when the suspension is uncompressed and the vehicle is on even ground.
  - 32. The suspension system of claim 22, said suspension system further comprising a control link force line that is at an angle of minus 30 to plus 30 degrees relative to the ground when the suspension is uncompressed and the vehicle is on even ground.
  - 33. The suspension system of claim 22, said suspension system further comprising a wheel link force line that ascends from the rear to the front of the vehicle at an angle of 0 to 50 degrees when the suspension is uncompressed and the vehicle is on even ground.
  - 34. The suspension system of claim 22, said suspension system further comprising a wheel link force line that is at an angle of minus 10 to plus 10 degrees relative to the ground when the suspension is uncompressed and the vehicle is on even ground.
  - 35. The suspension system of claim 22, said suspension system further comprising a wheel link force line that projects from the rear to the front of the vehicle at an angle of −
    - 15 to 45 degrees when the suspension is uncompressed and the vehicle is on even ground.
  - 36. The suspension system of claim 22, said suspension system further comprising a control link force line that descends from the rear to the front of the vehicle at an angle of 0 to 60 degrees when the vehicle is on even ground and the suspension is fully compressed.
  - 37. The suspension system of claim 22, said suspension system further comprising a wheel link force line that descends from the rear to the front of the vehicle at an angle of 0 to 30 degrees when the vehicle is on even ground and the suspension is fully compressed.
  - 38. The suspension system of claim 22, said suspension system further comprising a wheel link force line that projects from the rear to the front of the vehicle at an angle of −
    - 30 to 30 degrees when the vehicle is on even ground and the suspension is fully compressed.
  - 39. The suspension system of claim 22, wherein said wheel link and said brake link are arranged at an angle of 10 to 60 degrees when the suspension is uncompressed and the vehicle is on even ground.
  - 40. The suspension system of claim 22, wherein said wheel link is 5 to 20 percent shorter than said brake link.
  - 41. The suspension system of claim 22, wherein said brake link passes on two sides of a frame member.
  - 42. The suspension system of claim 22, wherein said control link is 2 to 25 cm in length.

43. A suspension system for a vehicle comprising a wheel link floating pivot, a control link fixed pivot, a wheel rotation axis, a wheel link, a brake link, and a shock absorber, wherein said wheel link floating pivot is concentric with said wheel rotation axis, wherein said shock absorber is selected from the group consisting of a compression gas spring, a leaf spring, a coil spring, and a fluid;
- and wherein force is transmitted to said shock absorber through said brake link;
  
  wherein said brake link passes on two sides of a frame member.
- View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64)
- - 44. The suspension system of claim 43, said suspension system further comprising a control link.
  - 45. The suspension system of claim 43, said suspension system further comprising a brake link, a control link floating pivot and a wheel link fixed pivot.
  - 46. The suspension system of claim 43, said suspension system further comprising a wheel link fixed pivot and a control link floating pivot.
  - 47. The suspension system of claim 46, said suspension system further comprising an instant center that is further to the front of the vehicle than the shock absorber when the suspension is uncompressed and the vehicle is on even ground.
  - 48. The suspension system of claim 46, said suspension system further comprising an instant center that is below the shock absorber when the suspension is uncompressed and the vehicle is on even ground.
  - 49. The suspension system of claim 46, said suspension system further comprising an instant center that is closer to the ground when the suspension is fully compressed compared to the when the suspension is uncompressed and the vehicle is on even ground.
  - 50. The suspension system of claim 46, said suspension system further comprising an instant center that has a first perpendicular distance to the ground when the suspension is uncompressed and a second perpendicular distance to the ground when the suspension is compressed.
  - 51. The suspension of claim 50, wherein the second perpendicular distance of the instant center to the ground is measured when the suspension is 50 percent compressed.
  - 52. The suspension of claim 50, wherein the second perpendicular distance of the instant center to the ground is measured when the suspension is fully compressed.
  - 53. The suspension of claim 46, where the difference between first perpendicular distance and second perpendicular distance is from 0 to 10000 m.
  - 54. The suspension system of claim 46, said suspension system further comprising a control link force line that descends from the rear to the front of the vehicle at an angle of 1 to 50 degrees when the suspension is uncompressed and the vehicle is on even ground.
  - 55. The suspension system of claim 46, said suspension system further comprising a control link force line that is at an angle of minus 30 to plus 30 degrees relative to the ground when the suspension is uncompressed and the vehicle is on even ground.
  - 56. The suspension system of claim 46, said suspension system further comprising a wheel link force line that ascends from the rear to the front of the vehicle at an angle of 0 to 50 degrees when the suspension is uncompressed and the vehicle is on even ground.
  - 57. The suspension system of claim 46, said suspension system further comprising a wheel link force line that is at an angle of minus 10 to plus 10 degrees relative to the ground when the suspension is uncompressed and the vehicle is on even ground.
  - 58. The suspension system of claim 46, said suspension system further comprising a wheel link force line that projects from the rear to the front of the vehicle at an angle of −
    - 15 to 45 degrees when the suspension is uncompressed and the vehicle is on even ground.
  - 59. The suspension system of claim 46, said suspension system further comprising a control link force line that descends from the rear to the front of the vehicle at an angle of 0 to 60 degrees when the vehicle is on even ground and the suspension is fully compressed.
  - 60. The suspension system of claim 46, said suspension system further comprising a wheel link force line that descends from the rear to the front of the vehicle at an angle of 0 to 30 degrees when the vehicle is on even ground and the suspension is fully compressed.
  - 61. The suspension system of claim 46, said suspension system further comprising a wheel link force line that projects from the rear to the front of the vehicle at an angle of −
    - 30 to 30 degrees when the vehicle is on even ground and the suspension is fully compressed.
  - 62. The suspension system of claim 43, wherein said wheel link and said brake link are arranged at an angle of 10 to 60 degrees when the suspension is uncompressed and the vehicle is on even ground.
  - 63. The suspension system of claim 43, wherein said wheel link is 5 to 20 percent shorter than said brake link.
  - 64. The suspension system of claim 43, said suspension system further comprising a control link that is 2 to 25 cm in length.

Specification

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Litigation Data

Current Assignee
Split Pivot Incorporated
Original Assignee
Split Pivot Incorporated
Inventors
Weagle, David
Primary Examiner(s)
Morris; Lesley
Assistant Examiner(s)
WILLIAMS, MAURICE L

Application Number

US11/510,522
Publication Number

US 20080067772A1
Time in Patent Office

1,362 Days
Field of Search

180/227, 280/284, 280/283, 280/285, 280/286, 280/288
US Class Current

180/227
CPC Class Codes

B60G 2204/421   Pivoted lever mechanisms fo...

B60G 2300/12   Cycles; Motorcycles

B62K 25/286   the shock absorber being co...

Vehicle suspension systems for seperated acceleration responses

First Claim

2 Assignments

Litigations

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Accused Products

Abstract

74 Citations

64 Claims

Specification

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Vehicle suspension systems for seperated acceleration responses

First Claim

2 Assignments

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Litigations

0 Petitions

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Accused Products

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Abstract

74 Citations

64 Claims

Specification

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Solutions

Use Cases

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