BRAKE APPARATUS

摘要

A brake apparatus includes a first coupling member coupled to one end part of one of a pair of link arms, a second coupling member coupled to the one end part of the other of the pair of link arms to freely advance and retract with respect to the first coupling member, an actuator configured to advance and retract an output member, a lever rotatably coupled to the output member and configured to be rotated by advancing and retracting movements of the output member and a booster unit configured to advance and retract the second coupling member with respect to the first coupling member by boosting a force transmitted by the rotation of the lever.

主权项

1. A brake apparatus for braking by sandwiching brake discs rotating together with a wheel, comprising:
a brake main body supported on a vehicle body or a truck; a pair of link arms having supporting portions between one and other end parts rotatably supported on the brake main body, the pair of link arms being respectively provided to face both surfaces of the brake discs and configured such that the other end parts support brake linings for giving a frictional force by sliding in contact with the brake discs; a first coupling member coupled to the one end part of one of the pair of link arms; a second coupling member coupled to the one end part of the other of the pair of link arms to freely advance and retract with respect to the first coupling member; an actuator configured to advance and retract an output member; a lever rotatably coupled to the output member of the actuator and configured to be rotated by advancing and retracting movements of the output member; and a booster unit configured to advance and retract the second coupling member with respect to the first coupling member by boosting a force transmitted by the rotation of the lever.