ELECTRIC PARKING BRAKE DEVICE

摘要

Electric parking brake devices are configured such that a parking lever (17) is driven by an electric actuator (20). The electric actuator (20) according to the present invention is provided with: an electric motor (21) which can be driven in a forward/reverse direction and of which operation is controlled by a motor control unit (ECU) according to rotational loads; a conversion mechanism (22) capable of converting a rotational motion into a linear motion, moving the parking lever (17) from a return position toward an operating position through the forward rotation of the electric motor (21), and moving the parking lever (17) from the operating position toward the return position through the reverse rotation of the electric motor (21); and a load applying mechanism (a stopper (27) and a disc spring assembly (28)) for applying a predetermined rotational load to the electric motor (21) by driving a constituent member of the conversion mechanism (22) after the parking lever (17) is moved from the operating position to the return position through the reverse rotation of the electric motor (21).