| 摘要 |
<p>A hydraulic master cylinder (30), for example for a rear brake of a vehicle, comprises a master cylinder (31) including a first oil chamber (31a) and a second oil chamber (31b), a piston (32) including a piston oil passage portion (32a) connected to the first oil chamber (31) a and the second oil chamber (31b) of the master cylinder (31), a push member (42), which abuts against the piston (32) to move the piston (32) to thereby generate a hydraulic pressure in the first oil chamber (31a), and a compression spring (43), which biases the push member (42) toward the piston (32) (in an arrow A direction) in the case where the piston (32) is not moved at least nearly toward the first oil chamber (31a), thereby bringing the push member (42) into contact with the piston (32).</p> |
