Abstract: A spot-type disc brake, in particular to a disc brake straddling the brake disc internally in which a brake and essential assemblies required for that brake and a process for mounting of such a brake are provided. Particular mounting arrangements allow each of the brake shoes to be removed in a radial direction without having to disassemble the housing or parts of the housing.

Abstract: A re-usable wear indicator (14) detachably secured to the pad carrier plate (2), especially intended for a disc-type brake shoe (1), which is located at the same point as is a spring (8) precluding rattling from occurring. This measure enables a recess (4) in the brake pad (3), required for fixing the spring, to be used, at the same time, to accommodate the wear indicator (14). The fixation is with the aid of a snap or O-ring (20) secured in an annular groove (19) on an extension (17) of the wear indicator (14), which ring (20) undergrips the constricted first end (21) of a hollow clip (22).

Abstract: A brake pad retention spring for spot-type disc brakes for automotive vehicles is disclosed including a fastening section for securing the spring to a brake pad backing plate and spring arms for engagement into a brake member, wherein two of the spring arms extend substantially in the circumferential direction in relation to the brake disc and a third spring arm extends substantially in the radial direction. The spring arms extending in the circumferential direction include U-shaped or V-shaped bent sections.

Abstract: A spot-type disc brake comprises a brake support member and a brake caliper guided via pins mounted in the brake support member. The brake caliper pressurizes the brake shoes arranged on either side of a brake disc by virtue of a brake piston on a bore. The brake shoe lying opposite to the piston is supported on the end face in the brake caliper, while the other brake shoe bears against the end face in the brake support member. To prevent inclined positioning of the brake caliper which results in tapered wear at the brake shoes, the retaining arm arranged in the brake disc's direction of rotation at the brake disc exit is dimensioned such in cross-section that its deformation in the circumferential direction of the brake disc will not be much larger than the fit clearance available between the brake piston and the bore.

Abstract: A spot-type disc brake, especially for automotive vehicles, comprises a brake carrier and a brake housing having two radial legs and an interconnecting bridge so as to straddle the rim of a brake disc. Brake pads disposed on either side of the brake disc, with the brake housing being disposed in axially displaceable manner on the brake carrier and actuable by an actuating device. To avoid a screw connection on the outer brake pad, for attaching a brake pad to the adjacent leg of the brake housing, at least one attachment element engages, in a locking manner, ports of the leg and of the brake pad. A spring is secured to the brake pad by way of which the brake pad is resiliently in abutment with bearing points provided on the brake housing.

Abstract: An internally stradding type disc brake for automotive vehicle is disclosed including a brake ring having opposing friction surfaces and spaced apart connecting elements extending radially from the periphery of the brake ring. A brake carrier having spaced apart axially extending connecting sections is provided for wherein each connecting section extends across a space between adjacent connecting elements of the brake ring and are welded to the connecting elements on opposite side of the space.

Abstract: An internally straddling type disc brake for automotive vehicles is disclosed including a cast brake ring having two spaced apart sectional friction brake rings defining two braking surfaces separated by a plurality of axial ribs defining a plurality of peripheral cooling ducts between the sectional friction rings. At least two peripheral radial connecting elements extend from the ribs centrally between the sectional friction brake rings and are connected to corresponding connecting sections on a brake carrier.

Abstract: A brake pad retention spring for spot-type disc brakes for automotive vehicles is disclosed including a fastening section for securing the spring to a pad backing plate and three spring arms for engagement into a brake member such as a brake piston wherein two of the spring arms extend substantially in a circumferential direction relative to the brake disc and the third spring arm extends substantially in a radial direction. In order to permit radial pad replacement with comparatively thin pads with the housing in its mounted position, the invention provides for the radial spring arm to have a bent section extending substantially parallel to the backing plate and having an adjacent end section extending substantially radially.

Abstract: An actuating apparatus is provided for use in a disc brake. The disc brake includes a brake piston slidably accommodated in a brake cylinder. A mechanically actuatable brake lever is non-rotatably coupled to an actuating shaft. The actuating shaft is rotatably accommodated in a bore in a brake cylinder housing. A thrust member is positioned between the actuating shaft and the piston or a further actuating element. A spring preloads the brake lever in the direction of rotation toward a final position. To create an actuating apparatus easy to set-up and mount, the spring also urges the actuating shaft in an axial direction against a stop or a support.

Abstract: A braking caliper for a pressure medium-operated spot-type disc brake is provided. The wheel cylinder piston for forcing the brake pads are held in a bore of a braking caliper which embraces the edge of the brake disc. The outer cylindrical surface of the pot-shaped wheel cylinder comprises a flange or collar which is in abutment with a shoulder provided between the two sections of the bore formed as a stepped bore. The outer cylindrical surface of the wheel cylinder is press fit in the bore of the braking caliper.

Abstract: In prior art vacuum brake boosters the partition wall is supported by a control hub. The boosting force is transmitted through the hub to a force transmitting serving to actuate the master cylinder. According to the present invention the partition wall includes a central sleeve of a stepped configuration which serves to transmit the boosting force without loading the hub. As a result the hub can be produced from a thermoplastic material of just sufficient strength to meet the reduced force transmitting requirements and which is easier to mold.

Abstract: A brake shoe assembly is composed of a carrier plate, a friction material lining secured to the carrier plate and the brake-shoe spring. The brake-shoe spring comprises between its legs a loop-shaped portion which is supported in a recess in the brake shoe, this recess being open towards the edge of the brake shoe. Arranged at the open recess is a projection which extends into the loop-shaped portion between two convolutions of the brake-shoe spring. The two convolutions are interconnected by a wire portion disposed at the area of the legs.

Abstract: To provide a space inside the housing of a brake booster for installation of an end portion of a master brake cylinder, the hub member of the booster piston (movable wall) comprising an axial sleeve adapted to embrace an end portion of the master cylinder in the actuated position of the booster and a valve housing extending out of the booster casing opposite to the master cylinder and guided therein, the valve housing including internal longitudinal channels extending from its outer end to a chamber which surrounds the valve housing and leads to the working chamber of the brake booster.

Abstract: In the prior art, a master brake cylinder is connected to a brake booster by a flange and nut and bolt arrangement. According to the present invention the connection can be made with a reduced number of parts and the large flange of the master cylinder can be eliminated. This is accomplished by providing the connecting end of the master cylinder with a circular groove and the adjacent end of a reinforcing tube of the booster is positioned to encompass the grooved end of the master cylinder, the reinforcing tube having protuberances formed therein to grip the circular groove.

Abstract: In the brake booster known in the prior art, the partition wall comprises a metal disc supported by a control hub made of a plastic material. The force exerted on the partition wall is transmitted through the hub to a force transmitting member actuating a master brake cylinder. According to the present invention the hub is composed of a metal sleeve transmitting the forces and a guiding neck of plastic material including all air guiding channels of the control valve disposed therein. This guiding neck can be manufactured much easier and can be made of a plastic material of just sufficient strength to meet the reduced force transmitting requirements.

Abstract: The guiding device for brake pad supports of a spot-type disc brake includes a pair of guide pins supported in the caliper housing movable in an axial direction, and a spring clamped between the guide pins and the brake housing with the spring being loaded by the axial movement of the guide pins, when the brake is applied. The spring acts to return the guide pins to their previous position, when the brake is released, in order to achieve a positive retraction of the brake pad guided by the pins.

Abstract: Production of pile fabric with repetitive cutting of incremental lengths of fiber with a moveable cutter. The increments are sequentially packed onto a guide, such as a shaft conveyor, and then delivered to and implanted on an adhesive coated carrier or backing moving on a carrier conveyor. To prevent disordering of the fibers, the fiber is caused to retract from the cutter upon retraction of the cutter.