Abstract: In one embodiment, a disc brake assembly for use with a rotor includes a parking disc brake and a pair of service disc brakes. The parking disc brake is provided between the two service disc brakes, the parking and service disc brakes being disposable in a circumferential direction along the rotor. At least one component part of at least one service disc brake is used as a torque-receiving part of the parking disc brake. In another embodiment, the torque-receiving part is a caliper. In another embodiment, the torque-receiving part is a carrier. In yet another embodiment, the hydraulic type service disc brake is a floating-caliper type. In still another alternate embodiment, at least one tightening part is shared to install the adjacent side of the service disc and the parking disc brake on a stationary part of a vehicle.

Abstract: In one embodiment, a disc brake assembly for use with a rotor includes a parking disc brake and a pair of service disc brakes. The parking disc brake is provided between the two service disc brakes, the parking and service disc brakes being disposable in a circumferential direction along the rotor. At least one component part of at least one service disc brake is used as a torque-receiving part of the parking disc brake. In another embodiment, the torque-receiving part is a caliper. In another embodiment, the torque-receiving part is a carrier. In yet another embodiment, the hydraulic type service disc brake is a floating-caliper type. In still another alternate embodiment, at least one tightening part is shared to install the adjacent side of the service disc and the parking disc brake on a stationary part of a vehicle.

Abstract: A shoe gap adjusting device includes a piston for pressing a brake shoe through a piston head, having a projecting end part with a boot cover for protecting an elastic boot that seals an end part of a cylinder body. A shoe gap adjusting ring is fitted on the end part of the piston in a non-rotatable manner. A elastic piece at the inner periphery of the cover axially extends through a cut-out in the ring and elastically supports the outer peripheral surface of the head so that the piston head is elastically attached to the piston. A tool can be inserted through an opening and engaged with an outer peripheral cut-out of the ring, for rotating the ring relative to a bolt and performing an adjustment of the shoe gap. The device simultaneously allows the protection for the elastic boot and realization of rotational operability of the shoe gap adjusting ring by the tool.