Patent ID: 7950503
Filing Date: 2011-05-31
Classification: F16D

Abstract:
1. A caliper for an electric disk brake, the caliper comprising: a pressing member for pressing a brake pad against a disk rotor; an electric motor; a rotary-to-linear motion conversion mechanism for converting a rotary motion of the electric motor to a linear motion to transmit the linear motion to the pressing member, the pressing member being moved forward according to rotation of the electric motor to press the brake pad against the disk rotor to exert a braking force; a bearing for receiving a reaction force, the reacting force acting on the pressing member when the pressing member presses the brake pad against the disk rotor; and a motor/controller unit which is formed by integrating the electric motor and a controller for controlling the electric motor, wherein: the caliper comprises a caliper body defining a cylinder for containing the pressing member, the rotary-to-linear motion conversion mechanism, and the motor; the motor comprises a motor stator, a motor rotor, and a motor case to which the motor stator is secured; the integrated motor/controller unit can be mounted on the caliper body, by the motor case of the motor being inserted into the cylinder; and the bearing is arranged inside the cylinder such that the reacting force is not transferred to the motor case; the motor/controller unit includes a plate member; the motor case of the motor includes a bearing attached thereto; the plate member includes a bearing attached thereto; and the motor rotor is rotatably supported by the bearing of the motor case and the bearing of the plate member.