Rotor cover, rotor cooling apparatus, and temperature-level indicator

Patent metadata

Field	Value
Publication number	US-9422993-B2
Application number	US-201414444981-A
Country	US
Kind code	B2
Filing date	Jul 28, 2014
Priority date	Jul 28, 2014
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

A rotor cover comprises a cover portion and a mounting portion. The cover portion is configured to at least partially cover a disc brake rotor mounted on a bicycle hub assembly. The mounting portion is configured to be mounted on the bicycle hub assembly.

First claim

What is claimed is:

1. A bicycle rotor cover comprising:
a mounting portion configured to be mounted on a bicycle hub assembly;
a cover portion configured to at least partially cover a bicycle disc brake rotor mounted on the bicycle hub assembly in a state where the mounting portion is mounted on the bicycle hub assembly; and
an air intake provided on the cover portion to intake air into a space between the cover portion and the bicycle disc brake rotor, the cover portion including a first outlet opening, the air intake including a first intake wall extending from the cover portion to define a first inlet opening, the first intake wall connecting the first inlet opening to the first outlet opening.

2. The bicycle rotor cover according to claim 1 , wherein
the cover portion radially outwardly extends from the mounting portion with respect to a rotational center axis of the bicycle hub assembly.

3. The bicycle rotor cover according to claim 1 , wherein
the mounting portion is configured to be secured relative to a bicycle frame with a wheel securing structure of the bicycle hub assembly in the state where the mounting portion is mounted on the bicycle hub assembly.

4. The bicycle rotor cover according to claim 3 , wherein
the mounting portion is configured to be positioned between the bicycle frame and a lock member of the wheel securing structure in a state where the mounting portion is secured relative to the bicycle frame with the wheel securing structure, the lock member being secured to an end of a rod of the wheel securing structure.

5. The bicycle rotor cover according to claim 4 , further comprising:
a spacer positioned between the bicycle frame and the mounting portion in the state where the mounting portion is secured relative to the bicycle frame with the wheel securing structure.

6. The bicycle rotor cover according to claim 5 , wherein
the spacer is configured to prevent the mounting portion from contacting a protrusion extending from a fork end of the bicycle frame in the state where the mounting portion is secured relative to the bicycle frame with the wheel securing structure.

7. The bicycle rotor cover according to claim 3 , wherein
the mounting portion includes a first through-hole, and
the first through-hole being configured to receive a rod of the wheel securing structure extending through the first through-hole in a state where the mounting portion is secured relative to the bicycle frame with the wheel securing structure.

8. The bicycle rotor cover according to claim 7 , wherein
the first through-hole is configured to be positioned between the bicycle frame and a lock member of the wheel securing structure in the state where the mounting portion is secured relative to the bicycle frame with the wheel securing structure, the lock member being secured to an end of the rod.

9. The bicycle rotor cover according to claim 1 , wherein
at least one of the cover portion and the mounting portion is configured to avoid contacting a protrusion extending from a fork end of the bicycle frame in the state where the mounting portion is mounted on the bicycle hub assembly.

10. The bicycle rotor cover according to claim 1 , wherein
the mounting portion is configured to be mounted on an outer surface of a hub axle of the bicycle hub assembly in the state where the mounting portion is mounted on the bicycle hub assembly.

11. The bicycle rotor cover according to claim 1 , wherein
the mounting portion is configured to be mounted on an inner surface of a hub axle of the bicycle hub assembly in the state where the mounting portion is mounted on the bicycle hub assembly.

12. The bicycle rotor cover according to claim 1 , further comprising:
a weight attached to the cover portion, wherein
the weight is disposed below the mounting portion in the state where the mounting portion is mounted on the bicycle hub assembly.

13. The bicycle rotor cover according to the claim 1 , wherein
a maximum outer radius of the cover portion is greater than or equal to a maximum outer radius of the bicycle disc brake rotor.

14. The bicycle rotor cover according to the claim 1 , wherein
at least one of the cover portion and the mounting portion is made of a metallic material.

15. The bicycle rotor cover according to the claim 1 , wherein
at least one of the cover portion and the mounting portion is made of a resin material.

16. The bicycle rotor cover according to claim 1 , wherein
the air intake includes the first inlet opening configured to face toward a traveling direction of a bicycle in the state where the mounting portion is mounted on the bicycle hub assembly.

17. The bicycle rotor cover according to claim 1 , wherein
the cover portion includes a plurality of holes configured to reduce force applied to the cover portion from cross wind in the state where the mounting portion is mounted on the bicycle hub assembly.

18. The bicycle rotor cover according to claim 1 , wherein
the mounting portion is configured to be provided on an opposite side of the bicycle disc brake rotor relative to a bicycle frame in a state where the mounting portion is secured relative to the bicycle frame with a wheel securing structure of the bicycle hub assembly.

19. The bicycle rotor cover according to claim 1 , wherein
the cover portion includes an offset part provided radially outward of the mounting portion with respect to a rotational center axis of the bicycle hub assembly, and
the offset part is offset from the mounting portion in an axial direction parallel to the rotational center axis.

20. The bicycle rotor cover according to claim 19 , wherein
the cover portion includes a coupling part coupling the offset part to the mounting portion, and
the coupling part extends from the mounting portion to the cover portion to be inclined with respect to the axial direction.

21. The bicycle rotor cover according to claim 1 , wherein
the cover portion includes a second outlet opening, and
the air intake includes a second intake wall extending from the cover portion to define a second inlet opening and connecting the second inlet opening to the second outlet opening.

22. A bicycle rotor cover comprising:
a mounting portion configured to be mounted on a bicycle hub assembly;
a cover portion configured to at least partially cover a bicycle disc brake rotor mounted on the bicycle hub assembly in a state where the mounting portion is mounted on the bicycle hub assembly, the cover portion including an offset part provided radially outward of the mounting portion with respect to a rotational center axis of the bicycle hub assembly, the offset part being offset from the mounting portion in an axial direction parallel to the rotational center axis; and
an air intake being provided on the offset part,
the offset part including a first outlet opening, and
the air intake including a first intake wall extending from the offset part to define a first inlet opening, the first intake wall connecting the first inlet opening to the first outlet opening.

23. The bicycle rotor cover according to claim 22 , wherein
the offset part includes a second outlet opening, and
the air intake includes a second intake wall extending from the offset part to define a second inlet opening and connecting the second inlet opening to the second outlet opening.

Assignees

• Shimano Kk

Inventors

• Watarai Etsuyoshi
• Matsushita Tatsuya
• Koshiyama Kazuki
• Sakurai Shingo
• Nakakura Masahiro

Classifications

• F16D65/128

  characterised by means for cooling · CPC title

• G01K11/12

  using changes in colour, translucency or reflectance · CPC title

• F16D65/847 Primary

  with open cooling system, e.g. cooled by air · CPC title

• F16D2066/001

  Temperature · CPC title

• F16D65/12 Primary

  Discs; Drums for disc brakes · CPC title