US 11,754,133 B2
Disc brake pad spring and disc brake device
Hiroki Egawa, Tokyo (JP); Kenichi Shimamura, Tokyo (JP); Nao Nojiri, Tokyo (JP); and Yutaka Nishikawa, Tokyo (JP)
Assigned to AKEBONO BRAKE INDUSTRY CO., LTD., Tokyo (JP)
Appl. No. 17/278,036
Filed by AKEBONO BRAKE INDUSTRY CO., LTD., Tokyo (JP)
PCT Filed Sep. 19, 2019, PCT No. PCT/JP2019/036829
§ 371(c)(1), (2) Date Mar. 19, 2021,
PCT Pub. No. WO2020/059823, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 2018-177896 (JP), filed on Sep. 21, 2018.
Prior Publication US 2021/0348661 A1, Nov. 11, 2021
Int. Cl. F16D 65/40 (2006.01); F16D 65/097 (2006.01); F16D 55/228 (2006.01)
CPC F16D 65/0977 (2013.01) [F16D 55/228 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A disc brake pad spring configured to be attached to a disc brake device in which a pair of pads located to sandwich a rotor are supported with respect to a pad support member by inserting in an axial direction pins provided on the pad support member into a through hole formed in a radially inner side of a peripheral-direction side of a back plate of each of the pair of pads, and the peripheral-direction side is located at a one side of the back plate in a peripheral direction of the rotor, and the disc brake pad spring configured to elastically press the pair of pads against the pad support member, wherein
the disc brake pad spring is formed by a single metal plate, and comprises:
a first bifurcated portion including a first base plate portion and a pair of first pressing parts, the pair of first pressing parts extend from two axial ends of the first base plate portion toward an other peripheral-direction side of the rotor, the other peripheral-direction side is located at an other side of the back plate in the peripheral direction of the rotor, the pair of first pressing parts configured to press an outer peripheral edge of the peripheral-direction side of the respective back plates of each of the pair of pads toward a radially inner side of the rotor, and each first pressing part including a first fold-back potion that fold back toward the radially inner side and toward the peripheral-direction side, and
a second bifurcated portion including a pair of second pressing parts configured to press a surface of the respective back plates of each of the pair of pads toward the other peripheral-direction side in the peripheral direction of the rotor, and the surface is disposed at the one side of the back plate in the peripheral direction of the rotor.