Disc brake caliper

Patent metadata

Field	Value
Publication number	US-9365259-B2
Application number	US-201314141346-A
Country	US
Kind code	B2
Filing date	Dec 26, 2013
Priority date	Dec 26, 2013
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

Abstract

A disc brake caliper comprises a caliper main body and an insert member. The caliper main body comprises a first portion, a second portion, a connecting portion, a first hole and a second hole. The connecting portion, the first portion and the second portion are formed as a single unitary member. A banjo fixing member is to be attached to the first hole. The second hole is provided apart from the first hole and extending from the first portion to the connecting portion so as to at least partially overlap the slit in the connecting portion. The insert member is configured to be inserted into the second hole. The insert member extends from the first portion to the connecting portion so as to at least partially overlap the slit in the second hole.

First claim

What is claimed is:

1. A disc brake caliper comprising:
a caliper main body comprising:
a first portion;
a second portion facing the first portion;
a connecting portion connecting the first portion with the second portion such that a slit for arranging a disc rotor is defined between the first portion and the second portion, the connecting portion, the first portion and the second portion being formed as a single unitary member;
a first hole to which a banjo fixing member is to be attached; and
a second hole provided apart from the first hole and extending from the first portion to the connecting portion in an axial direction so as to at least partially overlap the slit in the connecting portion when viewed in a direction orthogonal to the axial direction; and

an insert member configured to be inserted into the second hole, the insert member extending from the first portion to the connecting portion in the axial direction so as to at least partially overlap the slit in the second hole, the second hole being provided outside the slit.

2. The disc brake caliper according to claim 1 , wherein
the caliper main body is made of a first material, and
the insert member is made of a second material harder than the first material.

3. The disc brake caliper according to claim 2 , wherein
the first material comprises an aluminum alloy, and
the second material comprises one of iron, titanium and stainless steel.

4. The disc brake caliper according to claim 1 , wherein
the second hole extends from the first portion to the connecting portion in the axial direction beyond a center plane defined at the slit and dividing the slit into halves.

5. The disc brake caliper according to claim 4 , wherein
the insert member extends from the first portion to the connecting portion in the axial direction beyond the center plane in a state where the insert member is provided in the second hole.

6. The disc brake caliper according to claim 4 , wherein
the second hole extends from the first portion to the second portion through the connecting portion in the axial direction beyond the slit.

7. The disc brake caliper according to claim 6 , wherein
the insert member extends from the first portion to the second portion through the connecting portion in the axial direction beyond the slit in a state where the insert member is provided in the second hole.

8. The disc brake caliper according to claim 1 , wherein
the second hole has an inner diameter greater than an inner diameter of the first hole.

9. The disc brake caliper according to claim 1 , wherein
the caliper main body further comprises
a first recess provided on the first portion to arrange a first piston, the first recess facing the slit,
a second recess provided on the second portion to arrange a second piston, the second recess facing the slit and the first recess, and
a fluid passage connecting the first hole, the first recess and the second recess.

10. The disc brake caliper according to claim 9 , wherein
the second hole is configured without being in fluid communication with the fluid passage.

11. The disc brake caliper according to claim 9 , wherein
the first recess defines a first movement axis along which the first piston moves, and
the second hole is configured to be parallel to the first movement axis.

12. The disc brake caliper according to claim 11 , wherein
the second recess defines a second movement axis along which the second piston moves, the second movement axis being coaxial with or parallel to the first movement axis.

13. The disc brake caliper according to claim 9 , wherein
the second hole is arranged at an opposite side of the first hole with respect to the first recess and the second recess.

14. The disc brake caliper according to claim 1 , wherein
the second hole includes an internal thread, and
the insert member includes an external thread and is configured to be screwed into the second hole.

15. The disc brake caliper according to claim 1 , wherein
the insert member is configured to be press-fitted into the second hole.

16. The disc brake caliper according to claim 1 , wherein
the insert member is configured to be detachably inserted into the second hole.

17. The disc brake caliper according to claim 1 , wherein
the second hole includes an end opening which is provided on the first portion, and a bottom opposite to the end opening.

18. The disc brake caliper according to claim 17 , further comprising:
a fixing portion provided on the second portion and configured to be detachably fixed to a bicycle frame.

19. The disc brake caliper according to claim 1 , wherein
the insert member includes a shaft portion configured to be inserted into the second hole and to be at least partially a cylindrical shape.

20. The disc brake caliper according to claim 1 , wherein
the insert member includes a shaft portion configured to be inserted into the second hole in the axial direction, and
the shaft portion is provided outside the slit.

21. The disc brake caliper according to claim 1 , wherein
the first hole extends in the axial direction.

22. The disc brake caliper according to claim 21 , wherein
the first hole is provided outside the slit.

23. The disc brake caliper according to claim 1 , wherein
the slit is provided between the first hole and the second hole.

24. The disc brake caliper according to claim 1 , wherein
the second hole includes a bottomed hole.

25. The disc brake caliper according to claim 1 , wherein
the first hole includes a bottomed hole.

26. The disc brake caliper according to claim 9 , wherein
the fluid passage directly extends from the first hole.

Assignees

• Shimano Kk

Inventors

• Hirotomi Shinya
• Terada Takefumi
• Fujiwara Takaaki
• Yamashita Takahiro

Classifications

• B62L3/00 Primary

  Brake-actuating mechanisms {(for back-pedalling brakes B62L5/00)}; Arrangements thereof · CPC title

• F16D65/18

  adapted for drawing members together {, e.g. for disc brakes} · CPC title

• F16D65/0075 Primary

  assembled from a plurality of parts · CPC title

• F16D55/228

  with a separate actuating member for each side · CPC title

• F16D65/0068

  Brake calipers · CPC title