US 12,397,767 B2
Disc brake
Takayasu Sakashita, Hitachinaka (JP)
Assigned to HITACHI ASTEMO, LTD., Ibaraki (JP)
Appl. No. 17/796,108
Filed by Hitachi Astemo, Ltd., Hitachinaka (JP)
PCT Filed Jan. 27, 2021, PCT No. PCT/JP2021/002742
§ 371(c)(1), (2) Date Jul. 28, 2022,
PCT Pub. No. WO2021/157438, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 2020-017075 (JP), filed on Feb. 4, 2020.
Prior Publication US 2023/0080487 A1, Mar. 16, 2023
Int. Cl. B60T 13/74 (2006.01); F16D 65/18 (2006.01); F16D 121/24 (2012.01); F16D 125/06 (2012.01); F16D 125/40 (2012.01)
CPC B60T 13/746 (2013.01) [F16D 65/18 (2013.01); F16D 2121/24 (2013.01); F16D 2125/06 (2013.01); F16D 2125/40 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A disc brake, comprising:
a piston, which has a bottomed cylindrical shape, and is configured to press braking members against a braked member;
a thrust member configured to thrust the piston through rotation of a rotary member configured to be driven by an electric machine;
a rotation stopping member configured to restrict rotation of the thrust member relative to the piston;
an engaging portion, which is on an inner side of the piston, and is configured to restrict rotation of the rotation stopping member through engagement; and
a fixing member, which is separate from the piston and the rotation stopping member, and is configured to restrict movement of the rotation stopping member in an axial direction relative to the piston.