Snow bike and a front suspension for a snow bike

Patent metadata

Field	Value
Publication number	US-10538262-B2
Application number	US-201815975048-A
Country	US
Kind code	B2
Filing date	May 9, 2018
Priority date	Feb 24, 2017
Publication date	Jan 21, 2020
Grant date	Jan 21, 2020

Abstract

A front fork assembly of a snow bike is disclosed having left and right legs, each having an upper leg portion and a lower leg portion. The left leg upper and lower leg portions are linearly movable relative to each other. A right leg has an upper leg portion and a lower leg portion, the right leg upper and lower leg portions are linearly movable relative to each other. A ski mount has a lower end for coupling to a ski and an upper end for coupling to the left and right leg. A linear force element is coupled to the left and right legs with a first end adjacent the first ends of the forks and seconds ends coupled to the ski, the linear force element has a different linear force characteristic than the left and right legs.

First claim

What is claimed is:

1. A linear force absorption assembly for a snow vehicle having a frame, a front fork with a triple clamp, and at least one ski, comprising;
a linear force element having an upper end and a lower end;
an upper coupler configured to couple the upper end of the linear force element to the triple clamp;
and a ski mount configured to operably couple the lower end of the linear force element to a mount of the at least one ski, the ski mount including a first aperture for mounting the ski mount to the mount of the at least one ski, and a second aperture coupling the ski mount to the linear force element.

2. The absorption assembly of claim 1 , wherein the ski mount is a homogeneous member.

3. The absorption assembly of claim 2 , wherein the ski mount is a forging.

4. The absorption assembly of claim 1 , wherein, the ski mount has a notch for receiving the lower end of the linear force element.

5. The absorption assembly of claim 4 , wherein the lower end of the linear force element has flattened surfaces receivable within the notch.

6. The absorption assembly of claim 5 , wherein the linear force element has aperture through the flattened surfaces.

7. The absorption assembly of claim 6 , further comprising a fastener receivable through the second aperture and through the linear force element aperture.

8. The absorption assembly of claim 1 , wherein the upper coupler has a base portion for mounting to the triple clamp.

9. The absorption assembly of claim 8 , wherein the upper coupler has a clevis for coupling to the upper end of the linear force element.

10. The absorption assembly of claim 1 , wherein the linear force element is located substantially behind the front fork.

11. The absorption assembly of claim 10 , wherein the linear force element is longer than at least one leg of the front fork.

12. The absorption assembly of claim 1 , wherein the triple clamp is adjacent to a steering assembly of the snow vehicle.

13. A method of providing a linear force absorption assembly for a snow vehicle having a frame, a front fork with a triple clamp, and at least one ski, comprising;
providing a linear force element having an upper end and a lower end;
providing an upper coupler configured to couple the upper end of the linear force element to the triple clamp;
and providing a ski mount for operably coupling the lower end of the linear force element to a mount of the at least one ski, the ski mount including a first aperture for mounting the ski mount to the mount of the at least one ski, and a second aperture coupling the ski mount to the linear force element.

14. The method of claim 13 , wherein the ski mount is formed in a homogenous member.

15. The method of claim 14 , wherein the ski mount is formed by forging.

16. The method of claim 13 , further comprising the step of providing the ski mount with a notch for receiving the lower end of the linear force element.

17. The method of claim 16 , further comprising the step of flattening surfaces on the lower end of the linear force element wherein the flattened surfaces are receivable within the notch.

18. The method of claim 17 , further comprising the step of providing the linear force element with an aperture through the flattened surfaces.

19. The method of claim 18 , further comprising providing a fastener receivable through the second aperture and through the linear force element aperture.

20. The method of claim 13 , wherein the upper coupler is provided with a base portion for mounting to the tripe clamp.

21. The method of claim 20 , wherein the upper coupler is provided with a clevis for coupling to the upper end of the linear force element.

22. The method of claim 13 , wherein the linear force element is located substantially behind the front fork.

23. The method of claim 22 , wherein the linear force element is longer than at least one leg of the front fork.

24. The method of claim 13 , wherein the triple clamp is adjacent to a steering assembly of the snow vehicle.

Assignees

• Polaris Inc

Inventors

• Mangum Allen M
• Telford Cody L

Classifications

• B62B17/04 Primary

  resiliently suspended · CPC title