A sliding caliper disk brake (10) that includes an exterior brake shoe (18E) mounted to slide in the fixed support of the brake, wherein the disk brake includes a central exterior spring (48E) for returning the exterior brake shoe (18E) to its inactive position that is fixed to an associated central portion (63) of the exterior brake shoe (18E) and a front portion (50) of which is fixed axially to an associated central portion (58) of the fixed support (14). For returning it to its inactive position, the interior brake shoe is constrained to move axially with the brake piston.

A friction lining assembly having a backing plate and a sheet metal restoring spring fixed thereto, for a partially lined sliding-caliper type disk brake having a brake holder fixed with respect to the vehicle, on which friction lining assemblies arranged on both sides of a brake disk are slidably guided. A housing, which extends over the brake disk and the friction lining assemblies, is slidably mounted on the brake holder. The restoring spring is clamped axially between the brake holder and the friction lining assembly by at least one spring leg and applies a release clearance to the friction lining assembly. The spring leg extends over a hammer-head- shaped claw of the backing plate. The spring leg is plastically deformable in a defined manner under braking actuation as a result of a reduction in the friction-material thickness in order to impose a constantly dimensioned release clearance on the friction lining assembly.

A disc brake for a motor vehicle comprising a guide in which at least one brake pad assembly is guided such that it can move in a braking manner, wherein the brake pad assembly has a brake pad carrier on which a vehicle brake pad is attached which can be interacted with a brake disc in order to achieve a braking effect, wherein the brake pad carrier has at least one retaining tongue, wherein the guide has at least one receiving region and wherein the retaining tongue can be accommodated in the at least one receiving means by being guided in an actuation direction, wherein a reset device is in contact with the at least one retaining tongue, via which reset device a reset force acting against the actuation direction can be applied to same subsequent to an elastic deformation caused by braking deflection of the brake pad assembly, wherein the reset device has an elastically deformable region for resetting the brake pad carrier and a plastically deformable region or the permanent adaptation to a wearing of the vehicle brake pad. According to the invention, with this disc brake, the reset device can only be plastically deformed, as a result of a force acting thereon in the actuation direction along a guide surface of the receiving region, if the reset device has adopted a predetermined, exclusively elastic deformation as a result of this force, wherein the plastically deformable region is formed as a loop and is in direct contact with the retaining tongue and can also roll out along the guide surface during the plastic deformation.

A piston assembly for engaging two selectively engageable parts comprising: a housing defining a piston cylinder; a piston; and an adjuster assembly comprising: a piston stroke limiter configured to limit the length of a return stroke of the piston from an extended stroke position and a retracted stroke position, the piston stroke limiter comprising a spring and a spring guide; and an inner crushable tube, acting between the piston and the piston stroke limiter, the inner crushable tube being arranged to reduce in axial length when a length of an extension stroke exceeds a length of a retraction stroke to maintain the length of the return stroke; wherein the inner crushable tube comprises an inner crushable thin-walled tube surrounding at least a portion of the piston.

A spring (48) includes successively a portion (50) for fixing the spring to the disk brake, a rigid branch (B2) connected to the fixing portion (50) by a bend (P1) plastically deformable about a first deformation axis (A1), another rigid branch (B3) connected to the aforementioned rigid branch (B2) by a second plastically deformable bend (P2), and a further rigid branch (B4) connected to the aforementioned rigid branch (B3) by a third plastically deformable bend (P3) that cooperates directly or indirectly with an associated portion of the brake shoe, each rigid branch (B2, B3, B4) being a strip that lies in a plane parallel to the first deformation axis (A1).

A method for electronically activating an electromechanical actuator with the aid of an electronic unit is provided. A reversible electromotive actuator is connected to the ECU. An electric wheel brake in a motor vehicle comprises a brake stator, having a gear adjustment device for actuating and holding at least one brake lining in the direction of a brake rotor comprises means for providing an unbraked state with a release clearance between the brake lining and brake rotor. The release clearance is as minimal as possible and at the same time can be set in a wear-compensated, electrically defined way by virtue of the automatically imparting a special release clearance setting process/braking-readiness position to the motor vehicle wheel brake by way of software support.

A motor vehicle disc brake lining having friction material fixed on the front side of a back plate, and a resetting spring fixed releasably or non-releasably on the rear side of the back plate with a base and an elastic resetting spring bow. The resetting spring bow sits elastically on an assigned abutment of a holder such that the motor vehicle disc brake lining can be reset to be axially distanced from a brake disc in the released brake state. The friction lining resetting spring has a spring characteristic curve which is additively composed of a plurality of portions including a plurality of quasi-linear straight portions and, interposed in-between, at least one curved transition portion, each having mutually differently defined gradient angles, and among the portions there is at least one portion which is at least partially plastically deformable and serves to automatically allow demand-oriented spring-back based on wear compensation.

A brake assembly includes a housing, a brake element configured to be operatively associated with an axle for resisting rotation of the axle, and a piston configured to be selectively moved into and out of braking engagement with the brake element. The brake assembly further includes a slack adjustment mechanism for limiting movement of the piston when the piston is moved out of braking engagement with the brake element. The slack adjustment mechanism includes a shuttle configured to be engaged by the piston, and a plurality of stop elements carried by the shuttle and configured to be moved off the shuttle into a well of the housing. Movement of the piston is stopped when the shuttle engages an end wall of the well or one of the stop elements in the well.

A return spring (21) made of a metal plate, for biasing a friction pad (6) in a return direction of separating away from a disc (1) is arranged between the friction pad (6) and a mounting member (2). The return spring (21) includes a fixed portion (22), which is on a base end side fixed to an ear portion (7B) of a back plate (7) of the friction pad (6). Then, an abutment portion (25), which is on a distal end side of the return spring (21), is elastically brought into abutment on an abutment plate portion (13D) of a pad spring (13), which is on the mounting member (2) side at a position on an outer side in a disc radial direction relative to the fixed portion (22).

An elastic return spring for axially returning a brake pad of an automotive disc brake from an active position to an inactive position, the spring being intended to be interposed between the brake pad and a fixed support, with an elastic deformation portion, a carrier portion arranged to be fastened to the fixed support of the disc brake, and a pad portion. The carrier portion includes a support part and a connection part which including at least one connection fold arranged and configured to bear on an anchoring part of the fixed support and to cooperate with said anchoring part to avoid any lifting of the connection part.