Bicycle rim

Patent metadata

Field	Value
Publication number	US-10259262-B2
Application number	US-201715410768-A
Country	US
Kind code	B2
Filing date	Jan 20, 2017
Priority date	Jan 20, 2017
Publication date	Apr 16, 2019
Grant date	Apr 16, 2019

Abstract

A bicycle rim comprises a base member, a cover member, and a spoke attachment member. The base member includes a truss structure that defines at least one opening. The cover member at least partly covers the at least one opening of the base member. The spoke attachment member is a separate member from the base member and the cover member. The spoke attachment member is non-rotatably attached to the base member.

First claim

What is claimed is:

1. A bicycle rim comprising:
a base member including a truss structure that defines at least one opening; wherein the truss structure includes a pair of slanting members that intersect with a radial direction with respect to a rotational center axis of the bicycle rim, and a junction joining the pair of slanting members;
a cover member at least partly covering the at least one opening of the base member; and
a spoke attachment member that is a separate member from the base member and the cover member, the spoke attachment member non-rotatably attached to the base member; wherein the spoke attachment member includes a tubular portion protruding in the radial direction at the junction.

2. The bicycle rim according to claim 1 ; wherein
the truss structure further includes at least one radially extending member with respect to the rotational center axis.

3. The bicycle rim according to claim 1 ; wherein
the truss structure further includes a plurality of radially extending members with respect to the rotational center axis.

4. The bicycle rim according to claim 1 ; wherein
the truss structure defines a plurality of openings.

5. The bicycle rim according to claim 4 ; wherein
the cover member completely covers the plurality of openings of the base member.

6. The bicycle rim according to claim 1 ; wherein
the base member has a radially outer peripheral part and a radially inner peripheral part; and
the spoke attachment member is attached to the radially inner peripheral part of the base member.

7. The bicycle rim according to claim 1 ; wherein
the cover member has a radially outer peripheral part and a radially inner peripheral part; and
the spoke attachment member is attached to the radially inner peripheral part of the cover member.

8. The bicycle rim according to claim 1 ; wherein
the truss structure includes a radially extending member with respect to the rotational center axis; and
the junction joins the pair of slanting members and the radially extending member.

9. The bicycle rim according to claim 1 ; wherein
the cover member completely covers the at least one opening of the base member.

10. The bicycle rim according to claim 1 ; wherein
the base member is made of a non-metallic material.

11. The bicycle rim according to claim 10 ; wherein
the base member is made of a fiber-reinforced plastic.

12. The bicycle rim according to claim 10 ; wherein
the truss structure of the base member is formed by injection molding.

13. The bicycle rim according to claim 1 ; wherein
the cover member is made of a metallic material.

14. The bicycle rim according to claim 13 ; wherein
the cover member is made of aluminum.

15. The bicycle rim according to claim 1 ; wherein
the spoke attachment member is made of a metallic material.

16. The bicycle rim according to claim 15 ; wherein
the spoke attachment member is made of aluminum.

17. The bicycle rim according to claim 15 ; wherein
the spoke attachment member is shaped by forging.

18. The bicycle rim according to claim 1 ; wherein
the spoke attachment member includes a projecting portion extending from the tubular portion.

19. The bicycle rim according to claim 1 ; wherein
the base member has a first wear-resistance;
the cover member has a second wear-resistance that is larger than the first wear-resistance; and
the spoke attachment member has a third wear-resistance that is larger than the first wear-resistance.

20. The bicycle rim according to claim 1 ; wherein
the base member has a first specific gravity;
the cover member has a second specific gravity that is larger than the first specific gravity; and
the spoke attachment member has a third specific gravity that is larger than the first specific gravity.

21. The bicycle rim according to claim 1 ; wherein
the cover member includes a first cover portion and a second cover portion; and
the first cover portion is attached to the second cover portion in a state where the bicycle rim is assembled.

22. The bicycle rim according to claim 1 ; wherein
the base member includes an annular truss structure that defines a plurality of openings.

23. The bicycle rim according to claim 1 ; wherein
the cover member has an annular shape.

24. The bicycle rim according to claim 1 ; wherein the spoke attachment member is attached to a hollow portion provided on the junction.

25. A bicycle rim comprising:
an annular base member having at least one opening; wherein the annular base member includes a pair of slanting members that intersect with a radial direction with respect to a rotational center axis of the bicycle rim, and a junction joining the pair of slanting members;
a cover member at least partly covering the at least one opening of the annular base member; and
a spoke attachment member that is a separate member from the annular base member and the cover member, the spoke attachment member non-rotatably attached to the annular base member; wherein the spoke attachment member includes a tubular portion protruding in the radial direction at the junction.

26. The bicycle rim according to claim 25 ; wherein
the annular base member further includes at least one radially extending member with respect to the rotational center axis.

27. The bicycle rim according to claim 25 ; wherein
the annular base member further includes a plurality of radially extending members with respect to the rotational center axis.

28. The bicycle rim according to claim 25 ; wherein
the annular base member has a plurality of openings.

29. The bicycle rim according to claim 25 ; wherein
the cover member completely covers the at least one opening of the annular base member.

30. The bicycle rim according to claim 28 ; wherein
the cover member completely covers the plurality of openings of the annular base member.

31. The bicycle rim according to claim 25 ; wherein
the annular base member has a radially outer peripheral part and a radially inner peripheral part; and
the spoke attachment member is attached to the radially inner peripheral part of the annular base member.

32. The bicycle rim according to claim 25 ; wherein
the cover member has a radially outer peripheral part and a radially inner peripheral part; and
the spoke attachment member is attached to the radially inner peripheral part of the cover member.

33. The bicycle rim according to claim 25 ; wherein
the annular base member includes a radially extending member with respect to the rotational center axis; and
the junction joins the pair of slanting members and the radially extending member.

34. The bicycle rim according to claim 25 ; wherein
the annular base member is made of a non-metallic material.

35. The bicycle rim according to claim 34 ; wherein
the annular base member is made of a fiber-reinforced plastic.

36. The bicycle rim according to claim 25 ; wherein
the cover member is made of a metallic material.

37. The bicycle rim according to claim 36 ; wherein
the cover member is made of aluminum.

38. The bicycle rim according to claim 25 ; wherein
the spoke attachment member is made of a metallic material.

Assignees

• Shimano Kk

Inventors

• Iwai Tooru
• Nonoshita Tetsu
• Yoshida Toyoshi

Classifications

• B60B5/02

  made of synthetic material · CPC title

• B60B2900/311

  Rigidity or stiffness · CPC title

• B60B2360/104

  Aluminum · CPC title

• B60B21/062

  for bicycles · CPC title

• B60B2360/10

  Metallic materials · CPC title