DISK BRAKE DEVICE

摘要

This disk brake device is provided with: a rotor (4) having a braking surface (4a); a caliper; an inner pad (43) and an outer pad positioned facing the braking surface (4a), and a braking operation mechanism which is made to perform a braking operation whereby both pads are pressed against the braking surface (4a). The braking operation mechanism is equipped with a base plate (35), a wedge plate (37) that holds the inner pad (43), a first movement conversion mechanism that moves the wedge plate (37) with respect to the base plate (35), parallel with the braking surface (4a) and in a direction perpendicular to the braking surface (4a) while sliding in the direction of rotation of the rotor (4), ___ an electric motor unit (24) that outputs driving force; and a second movement conversion mechanism that uses the rotational driving force of the electric motor unit (24) to slide the wedge plate (37) parallel to the braking surface (4a) and in the direction of rotation of the rotor (4).