Bicycle fork with tensioned damping member
A bicycle fork assembly designed to reduce the transfer of vibrations to the rider. This is accomplished by providing a damping member (e.g., made of a molded elastomer) that completely surrounds the outer surface of a fork member. Preferably, the damping member is in tension when mounted on the fork member such that the damping member compresses the fork member to thereby reduce transmission of vibrations through the fork. In addition, the fork member can be provided with a necked portion that receives the damping member. Preferably, the damping member is positioned closer to the fork tip than to the fork crown. The damping member can comprise two portions having different colors, durometers, and densities. Preferably, the damping member is formed separate from the fork member, and subsequently slid onto the outer surface of the fork member. Alternatively, the damping member could be molded in place on the fork member.
1. A bicycle comprising:
a wheel;
a main frame coupled to the wheel;
a fork coupled to the main frame and including a fork member having outer surface;
a seat coupled to the frame and providing a location for supporting a rider;
a handlebar coupled to the fork and providing a location for steering the bicycle; and
a damping member disposed on the outer surface and completely surrounding the fork member, wherein the damping member is in tension when mounted on the fork.
2. The bicycle of claim 1 , wherein the front fork has a fork tip coupled to a front wheel and a fork crown adjacent the main frame, and wherein the damping member is positioned closer to the fork tip than to the fork crown.
3. The bicycle of claim 1 , wherein the fork member comprises a necked portion and a non-necked portion, and wherein the damping member is positioned on the necked portion.
4. The bicycle of claim 3 , wherein the necked portion has a depth relative to the non-necked portion, and wherein the damping member has a thickness greater than the depth such that the damping member protrudes beyond an outer surface of the non-necked portion.
5. The bicycle of claim 1 , wherein the damping member comprises a molded elastomer.
6. The bicycle of claim 1 , wherein the damping member is not bonded to the fork.
7. The bicycle of claim 1 , wherein the damping member comprises:
a first portion having a first color; and
a second portion having a second color.
8. The bicycle of claim 1 , wherein the damping member comprises:
a first portion having a first durometer; and
a second portion having a durometer.
9. A fork assembly comprising:
a fork member having an outer surface; and
a damping member disposed on the outer surface and completely surrounding the fork member, wherein the damping member is in tension when mounted on the fork member.
10. The fork assembly of claim 9 , wherein the fork member comprises a necked portion and a non-necked portion, and wherein the damping member is positioned on the necked portion.
11. The fork assembly of claim 10 , wherein the necked portion has a depth relative to the non-necked portion, and wherein the damping member has a thickness greater than the depth such that the damping member protrudes beyond an outer surface of the non-necked portion.
12. The fork assembly of claim 9 , wherein the damping member comprises a molded elastomer.
13. The fork assembly of claim 9 , wherein the damping member is not bonded to the fork member.
14. The fork assembly of claim 9 , wherein the damping member comprises:
a first portion having a first color; and
a second portion having a second color.
15. The fork assembly of claim 9 , wherein the damping member comprises:
a first portion having a first durometer; and
a second portion having a durometer.