Methods and apparatus related to a unitary fork brace
View Patent ↗Embodiments of a fork brace for a bicycle are disclosed herein. In one aspect, a brace portion is integrally formed along with two tubular fork members and an overlay fits in a mating relationship with the brace portion to create a unitary, tubular brace.
1. A vehicle front fork assembly comprising:
a brace portion having a first and second tubular fork member formed one at each end of the brace portion, the tubular fork members accepting and operating telescopically with mating tubes, the brace portion having an open portion opposite a surface, sides extending around a perimeter of the surface, at least one reinforcement member extending outwards from the surface towards an upper edge of the sides, a lip formed around an outer perimeter of the sides, and the fork members parallel to each other; and
an overlay having sides with a bottom edge at an end thereof constructed and arranged to be mated with the open portion of the brace portion by fitting the lip and an outer surface of the sides of the brace portion with the bottom edge and an interior surface of the sides of the overlay, and forming a closed brace having a substantially tubular cross-section.
2. A vehicle suspension fork comprising:
a brace portion having a first and second tubular fork member formed one at each end of the brace portion, the brace portion having an open portion opposite a surface, sides extending around a perimeter of the surface, at least one reinforcement member extending outwards from the surface towards an upper edge of the sides, a lip formed around an outer perimeter of the sides, and the fork members parallel to each other;
an overlay having sides with a bottom edge at an end thereof constructed and arranged to be mated with the open portion of the brace portion by fitting the lip and an outer surface of the sides of the brace portion with the bottom edge and an interior surface of the sides of the overlay, and forming a closed brace having a substantially tubular cross-section;
a first mating tube telescopically received by the first tubular fork member;
a second mating tube telescopically received by the second tubular fork member;
a crown connecting the first mating tube to second mating tube; and
a steerer tube connected to the crown at one end and a vehicle at a second end.
3. The vehicle suspension fork of claim 2 , wherein the brace portion and the fork members are formed as an integral unit.
4. The vehicle suspension fork of claim 2 , wherein the brace portion is formed of a metallic material.
5. The vehicle suspension fork of claim 2 , wherein the brace portion is formed of a material selected from a group of at least one of magnesium, aluminum and titanium.
6. The vehicle suspension fork of claim 2 , wherein the overlay is formed of non-metallic material comprising at least one of fabric, mat, directional fiber, and thermoplastic composite.
7. The vehicle suspension fork of claim 2 , wherein the overlay comprises a fiber reinforced polymer.
8. The vehicle suspension fork of claim 2 , where a tubular interior is formed within the closed brace.
9. The vehicle suspension fork of claim 2 , wherein an interior of the closed brace is filled with a foam.
10. The vehicle suspension fork of claim 2 , wherein the brace portion further includes a channel formed on an outer perimeter thereof for supporting the bottom edge of the overlay.
11. The vehicle suspension fork of claim 2 , wherein the at least one reinforcement member extends outwards past the upper edge of the sides, the reinforcement member for contact with the interior surface of the sides of the overlay.
12. The vehicle suspension fork of claim 2 , wherein the overlay is attached to the brace portion with an adhesive.
13. The vehicle suspension fork of claim 2 , wherein the overlay is attached to the brace portion with at least one fastener.
14. The vehicle suspension fork of claim 2 , wherein the overlay is attached to the brace portion by welding.
15. The vehicle suspension fork of claim 2 , wherein the brace portion is disposed at a front end of a front fork assembly and the open portion of the brace portion faces a rear end of the front fork assembly.
16. The vehicle suspension fork of claim 2 , wherein the at least one reinforcement member is mated with the interior surface of the sides of the overlay.
17. The vehicle suspension fork of claim 2 , wherein the at least one reinforcement member bridges the sides extending around the perimeter of the surface.
18. The vehicle suspension fork of claim 2 , wherein the interior surface of the sides of the overlay fits on the outer surface of the sides of the brace portion to make a substantially continuous connection.
19. The vehicle suspension fork of claim 2 , wherein the open portion terminates in a contoured formation at each end of the brace portion.
20. A vehicle fork assembly comprising:
a first leg and a second leg wherein the first leg comprises a first axle receiver and the second leg comprises a second axle receiver;
a crown connecting the first leg to the second leg;
a brace connecting a portion of the first leg to a portion of the second leg, the brace having an open portion opposite a surface, sides extending around a perimeter of the surface, at least one reinforcement member extending outwards from the surface towards an upper edge of the sides, a lip formed around an outer perimeter of the sides;
an overlay having sides with a bottom edge at an end thereof constructed and arranged to be mated with the open portion of the brace portion by fitting the lip and an outer surface of the sides of the brace portion with the bottom edge and an interior surface of the sides of the overlay to form a closed substantially tubular cross-section; and
a steerer tube connected to the crown.