Electric brake device for vehicle

The invention relates to an electric brake device for a vehicle, which improves the practicability of the electric brake device for the vehicle having two electric motors as driving sources. An actuator (14), which has one piston (24) and presses a brake pad (12) against a disc rotor (10) by means of the piston, is configured to include an operation conversion mechanism (28) that converts the rotational operation of each of two electric motors (22) into the advancing and retreating operation of the piston. Since the inertia force can be reduced by reducing the size of the electric motor, an electric brake device having excellent responsiveness can be constructed. In addition, since one piston is operated by two electric motors, the structure is simpler than that of an electric brake device in which two pistons are driven by two electric motors. 本发明涉及车辆用电动制动装置，使具有2个电动马达作为驱动源的车辆用电动制动装置的实用性提高。将具有1个活塞(24)并通过该活塞把制动块(12)按压于盘式转子(10)的促动器(14)构成为包括将2个电动马达(22)中的每一个的旋转动作都变换为活塞的进退动作的动作变换机构(28)。由于通过电动马达的小型化能够减小惯性力，所以能够构建响应