Friction member for bicycle brake

Patent metadata

Field	Value
Publication number	US-2016116012-A1
Application number	US-201414583193-A
Country	US
Kind code	A1
Filing date	Dec 26, 2014
Priority date	Oct 23, 2014
Publication date	Apr 28, 2016
Grant date	—

Abstract

A friction member for a bicycle brake that is obtained through combustion synthesis is disclosed. One example of the bicycle brake friction member includes an intermetallic compound, which is obtained from a first metal and a second metal, and a metal phase, which is obtained from the first metal.

First claim

1 . A friction member for a bicycle brake, wherein the friction member is obtained through combustion synthesis.

2 . The friction member according to claim 1 , comprising an intermetallic compound obtained through combustion synthesis.

3 . The friction member according to claim 2 , further comprising a metal phase.

4 . The friction member according to claim 3 , wherein the metal phase includes at least one of Cu, Al, Zn, and Ni.

5 . The friction member according to claim 4 , wherein
the metal phase includes Cu, and the intermetallic compound includes at least one of TiCu, Ti 2 Cu, Ti 3 Cu 4 , Ti 2 Cu 3 , and TiCu 4 .

6 . The friction member according to claim 5 , further comprising at least one of TiC and Cu 3 Ti 3 O.

7 . The friction member according to claim 1 , wherein the friction member is obtained by subjecting a powder compacted body, which includes at least three types of powder, to combustion synthesis.

8 . The friction member according to claim 7 , wherein the at least three types of powder are copper powder, titanium powder, and carbon powder.

9 . The friction member according to claim 8 , wherein the powder compacted body contains 10 to 30 wt % of the carbon powder relative to the total weight of the copper powder.

10 . The friction member according to claim 9 , wherein the powder compacted body contains 0.1 to 50 wt % of the titanium powder relative to the total weight of the copper powder.

11 . The friction member according to claim 10 , wherein the powder compacted body contains 5 to 15 wt % of the titanium powder relative to the total weight of the copper powder.

12 . A friction member for a bicycle brake, the friction member comprising:
an intermetallic compound obtained from a first metal and a second metal; and a metal phase formed from the first metal.

13 . The friction member according to claim 12 , wherein
the first metal is either one of Cu, Al, Zn, and Ni; and the second metal is Ti.

14 . The friction member according to claim 13 , wherein
the first metal is Cu; and the intermetallic compound is at least one of TiCu, Ti 2 Cu, Ti 3 Cu 4 , Ti 2 Cu 3 , and TiCu 4 .

15 . The friction member according to claim 14 , further comprising at least one of TiC and Cu 3 Ti 3 O.

16 . The friction member according to claim 12 , wherein the friction member is obtained by subjecting a powder compacted body, which includes at least three types of powder, to combustion synthesis.

17 . The friction member according to claim 16 , wherein the at least three types of powder are copper powder, titanium powder, and carbon powder.

18 . The friction member according to claim 17 , wherein the powder compacted body contains 10 to 30 wt % of the carbon powder relative to the total weight of the copper powder.

19 . The friction member according to claim 18 , wherein the powder compacted body contains 0.1 to 50 wt % of the titanium powder relative to the total weight of the copper powder.

20 . The friction member according to claim 19 , wherein the powder compacted body contains 5 to 15 wt % of the titanium powder relative to the total weight of the copper powder.

21 . A bicycle component comprising a Cu—Ti based intermetallic compound.

22 . The bicycle component according to claim 21 , further comprising a metal phase.

23 . The bicycle component according to claim 22 , wherein
the metal phase includes Cu; and the Cu—Ti based intermetallic compound includes at least one of TiCu, Ti 2 Cu, Ti 3 Cu 4 , Ti 2 Cu 3 , and TiCu 4 .

24 . The bicycle component according to claim 23 , further comprising at least one of TiC and Cu 3 Ti 3 O.

25 . The bicycle component according to claim 21 , wherein the Cu—Ti based intermetallic compound is obtained by subjecting a powder compacted body, which includes at least copper powder, titanium powder, and carbon powder, to combustion synthesis.

26 . The bicycle component according to claim 25 , wherein the powder compacted body contains 10 to 30 wt % of the carbon powder relative to the total weight of the copper powder.

27 . The bicycle component according to claim 26 , wherein the powder compacted body contains 0.1 to 50 wt % of the titanium powder relative to the total weight of the copper powder.

28 . The bicycle component according to claim 27 , wherein the powder compacted body contains 5 to 15 wt % of the titanium powder relative to the total weight of the copper powder.

29 . The bicycle component according to claim 28 , wherein the bicycle component is a friction member for a bicycle brake.

30 . A method of manufacturing a friction member for a bicycle brake, the method comprising:
molding a powder compacted body; and subjecting the powder compacted body to combustion synthesis.

31 . The method of manufacturing a friction member according to claim 30 , wherein the powder compacted body includes copper powder, titanium powder, and carbon powder.

32 . The method of manufacturing a friction member according to claim 31 , wherein the powder compacted body contains 10 to 30 wt % of the carbon powder relative to the total weight of the copper powder.

33 . The method of manufacturing a friction member according to claim 32 , wherein the powder compacted body contains 0.1 to 50 wt % of the titanium powder relative to the total weight of the copper powder.

34 . The method of manufacturing a friction member according to claim 33 , wherein the powder compacted body contains 5 to 15 wt % of the titanium powder relative to the total weight of the copper powder.

Assignees

• Shimano Kk

Inventors

• Iwai Tooru
• Souwa Makoto

Classifications

• F16D69/027 Primary

  Compositions based on metals or inorganic oxides · CPC title

• B22F3/1039

  by reaction (B22F3/001, B22F3/23 take precedence) · CPC title

• F16D2200/0004

  metallic · CPC title

• B22F2998/10

  Processes characterised by the sequence of their steps · CPC title