FORK ASSEMBLY FOR A BICYCLE

• US 20110121538A1
• Filed: 06/04/2009
• Published: 05/26/2011
• Est. Priority Date: 06/06/2008
• Status: Abandoned Application

• Current Assignee: Pbsc Solutions Urbaines Inc. (LYFT Incorporated)
• Original Assignee: Pbsc Solutions Urbaines Inc. (LYFT Incorporated)
• Inventors: Giroux, Michel
• Application Number:
  US12/995,987
• Publication Number:
  US 20110121538A1
• Time in Patent Office: Days
• US Class Current: 280/280
• CPC Class Codes: B62J 11/13 specially adapted for mechanical cables
• CPC Class Codes: B62K 19/32 Steering heads bearings therefor B62K21/06
• CPC Class Codes: B62K 21/02 Front wheel forks or equivalent, e.g. single tine
• CPC Class Codes: B62K 21/04 Fork crowns
• CPC Class Codes: B62K 21/18 Connections between forks and handlebars or handlebar stems
• CPC Class Codes: B62K 23/06 Levers

Abstract

A fork assembly for a bicycle comprising a pair of spaced-apart blade operatively connected to one another by at least one of a crown plate and a stem plate. The fork assembly comprises a steer assembly for connecting the fork assembly to a head tube of a frame of a bicycle. The head tube of the bicycle comprises openings for allowing routing control cables from a handlebar through the frame of the bicycle. A method for routing the control cables from a handlebar through the frame of the bicycle is also provided.

Claims

1. A fork assembly for a bicycle having a frame, said fork assembly comprising:

a first blade and a second spaced-apart blade, each of the first blade and the second blade comprising a lower wheel portion and an upper steer portion defining a junction therebetween, at least one of the first blade and the second blade comprising a hollow passageway therealong for concealing a control cable therein;

a crown plate mounted to the steer portion of the first blade and the steer portion of the second blade;

a stem plate mounted to the steer portion of the first blade and to the steer portion of the second blade above the crown plate, the stem plate and the crown plate being adapted for holding the blades in a position for receiving a wheel of the bicycle between the wheel portion of the first blade and the wheel portion of the second blade and for defining a space between the steer portion of the first blade and the steer portion of the second blade; and

a steer assembly for operatively connecting at least one of the crown plate and the stem plate to the frame of the bicycle.

2. The fork assembly as claimed in claim 1, wherein the upper steer portion of the first blade and the upper steer portion of the second blade are straight and parallel to each other, the lower wheel portion of the first blade and the lower wheel portion of the second blade bending outwardly proximal the corresponding junction for providing a wheel space adapted to receive the wheel of the bicycle therebetween.

3. The fork assembly as claimed in claim 1, wherein at least one of the crown plate and the stem plate is secured to the first blade and the second blade using a welding technique.

4. The fork assembly as claimed in claim 1, wherein the steer assembly comprises pivoting means for pivotally connecting at least one of the crown plate and the stem plate to the frame of the bicycle.

5. The fork assembly as claimed in claim 1, wherein each of the first and second blades comprises a lower end, an opposed top end and a dropout mounted at the lower end for mounting the wheel of the bicycle thereto.

6. The fork assembly as claimed in claim 5, wherein the stem plate is mounted at the top end of the first blade and at the top end of the second blade.

7. The fork assembly as claimed in claim 1, wherein the stem plate comprises a top face for mounting a handlebar of the bicycle thereto and an opposed bottom face.

8. The fork assembly as claimed in claim 7, wherein the stem plate comprises a handlebar recess defined on the top face thereof for receiving therein the handlebar.

9. The fork assembly as claimed in claim 8, wherein the stem plate comprises a first recess and a second recess extending on the bottom face thereof, each of the first recess and the second recess being adapted for receiving therein a corresponding top end of one of the corresponding blades.

10. The fork assembly as claimed in claim 8, wherein the stem plate further comprises a hole extending from the top face to the bottom face, the hole being adapted for providing a passageway for at least one control cable therethrough.

11. The fork assembly as claimed in claim 8, further comprising a stem cover adapted for mounting with the stem plate to secure the handlebar received in the handlebar recess of the stem plate between the stem cover and the stem plate.

12. The fork assembly as claimed in claim 10, wherein said at least one control cable is selected from a group consisting of a brake cable and a gear-shifter cable, the at least one control cable extending inside the handlebar and further extending through the hole of the stem plate towards the space defined between the steer portion of the first blade and the steer portion of the second blade when the handlebar is mounted to the stem plate.

13. The fork assembly as claimed in claim 1, wherein the crown plate is mounted at the junctions of the lower wheel portion and the upper steer portion of the first blade and the second blade.

20. The fork assembly as claimed in claim 1, wherein said at least one of the first blade and the second blade comprising said hollow passageway therealong further comprises a first upper cable hole located in the steer portion and a second lower cable hole located in the wheel receiving portion.

21. The fork assembly as claimed in claim 1, further comprising a space cover mounted against the steer portion of the first blade and the steer portion of the second blade between the stem plate and the crown plate for closing the space between the steer portion of the first blade and the steer portion of the second blade.

22. The fork assembly as claimed in claim 21, wherein the space cover is U-shaped and comprises a first leg and an opposed second leg, each of the first leg and the second leg overlapping a corresponding steer portion.

23. The fork assembly as claimed in claim 21, wherein the space cover comprises at least one mounting bracket for mounting a rack thereto.

14-19. -19. (canceled)

24. A bicycle comprising:

a frame;

a fork assembly comprising;

a first blade and a second spaced-apart blade, each of the first blade and the second blade comprising a lower wheel portion and an upper steer portion defining a junction therebetween, at least one of the first blade and the second blade comprising a hollow passageway therealong for concealing a control cable therein;

a crown plate mounted to the steer portion of the first blade and the steer portion of the second blade;

a stem plate mounted to the steer portion of the first blade and to the steer portion of the second blade above the crown plate, the stem plate and the crown plate being adapted for holding the blades in a position for receiving a wheel of the bicycle between the wheel portion of the first blade and the wheel portion of the second blade and for defining a space between the steer portion of the first blade and the steer portion of the second blade; and

a steer assembly for operatively connecting at least one of the crown plate and the stem plate to the frame of the bicycle; and

a handlebar mounted to the stem plate.

25. (canceled)

26. A method for routing at least one control cable of a bicycle having a frame, the method comprising:

providing a fork assembly, said fork assembly comprising;

a first blade and a second spaced-apart blade, each of the first blade and the second blade comprising a lower wheel portion and an upper steer portion defining a junction therebetween, at least one of the first blade and the second blade comprising a hollow passageway therealong for concealing a control cable therein;

a crown plate mounted to the steer portion of the first blade and the steer portion of the second blade;

a stem plate mounted to the steer portion of the first blade and to the steer portion of the second blade above the crown plate, the stem plate and the crown plate being adapted for holding the blades in a position for receiving a front wheel of the bicycle between the wheel portion of the first blade and the wheel portion of the second blade and for defining a space between the steer portion of the first blade and the steer portion of the second blade, the stem plate of the fork assembly comprising a hole extending through a top face and a bottom face thereof; and

a steer assembly for operatively connecting at least one of the crown plate and the stem plate to the frame of the bicycle;

mounting the fork assembly to the frame of the bicycle;

providing a handlebar comprising said at least one control cable, said at least one control cable being internally routed inside the handlebar towards a lower opening defined in the handlebar; and

mounting the handlebar to the stem plate of the fork assembly such that the control cable of the handlebar runs through the lower opening thereof towards the space defined between the steer portion of the first blade and the steer portion of the second blade and further towards at least one of the frame and the front wheel of the bicycle.

27. The method for routing at least one control cable of a bicycle as claimed in claim 26, further comprising:

providing a stem cover adapted for mounting with the stem plate to secure the handlebar between the stem cover and the stem plate; and

mounting the cover plate to the stem plate for securing the handlebar therebetween.

28. (canceled)