A disk brake actuated preferably by compressed air, for a motor vehicle, includes an application mechanism. The application mechanism has a brake rotary lever which acts on a traverse in which there is arranged at least one readjusting spindle which acts on an application-side brake pad, having a readjusting device, and having a quick contact apparatus. The quick contact apparatus effects an advancing movement which is superposed on an actuation of the disk brake during the phase of overcoming an air gap. The quick contact apparatus has an intermediate element which is variable in terms of its position and which has at least a wedge-shaped design.

A disk brake actuated preferably by compressed air, for a motor vehicle, includes an application mechanism. The application mechanism has a brake rotary lever which acts on a traverse in which there is arranged at least one readjusting spindle which acts on an application-side brake pad, having a readjusting device, and having a quick contact apparatus. The quick contact apparatus effects an advancing movement which is superposed on an actuation of the disk brake during the phase of overcoming an air gap. The quick contact apparatus has an intermediate element which is variable in terms of its position and which has at least a wedge-shaped design.

An adjustment device for a disc brake is operable for adjusting brake pads to compensate wear. The adjustment device includes a guide sleeve in which a wrap spring is arranged a groove ring surrounding the guide sleeve and coupled to a closure cap via a torsion spring, and an opening ring surrounding the groove ring.

A slack adjuster is provided for a drum brake of a vehicle air braking system. The slack adjuster comprises a gear set including (i) a worm wheel having an outer circumferential surface, and (ii) a worm shaft having a longitudinal central axis and meshed with the worm wheel. The worm shaft is rotated in one direction about its longitudinal central axis when the drum brake is applied and adjustment is required and in an opposite direction about its longitudinal central axis when the drum brake is released. The slack adjuster further comprises an anti-reversing member having an inner circumferential surface facing the outer circumferential surface of the worm wheel. The anti-reversing member allows rotation of the worm wheel when the drum brake is applied and prevents rotation of the worm wheel when the drum brake is released.

A slack adjuster is provided for a drum brake of a vehicle air braking system. The slack adjuster comprises a gear set including (i) a worm wheel having an outer circumferential surface, and (ii) a worm shaft having a longitudinal central axis and meshed with the worm wheel. The worm shaft is rotated in one direction about its longitudinal central axis when the drum brake is applied and adjustment is required and in an opposite direction about its longitudinal central axis when the drum brake is released. The slack adjuster further comprises an anti-reversing member having an inner circumferential surface facing the outer circumferential surface of the worm wheel. The anti-reversing member allows rotation of the worm wheel when the drum brake is applied and prevents rotation of the worm wheel when the drum brake is released.

The invention is for automatic slack adjuster for an automobile with a housing having an aperture for receiving a brake cam shaft comprising of a worm gear coaxially mounted within the said housing aperture and configured to coaxially engage the brake cam shaft, such that the said worm gear and said cam shaft rotating together about a first axis. The arrangement has a bore with a single open end for receiving a worm clutch shaft. The said worm clutch shaft is mounted in the said housing to rotate about a second axis, which is perpendicular to first axis. The invention has only one side opening. The thrust load from the worm shaft is transferred through the thrust bush through the main housing of the assembly.

The invention is for automatic slack adjuster for an automobile with a housing having an aperture for receiving a brake cam shaft comprising of a worm gear coaxially mounted within the said housing aperture and configured to coaxially engage the brake cam shaft, such that the said worm gear and said cam shaft rotating together about a first axis. The arrangement has a bore with a single open end for receiving a worm clutch shaft. The said worm clutch shaft is mounted in the said housing to rotate about a second axis, which is perpendicular to first axis. The invention has only one side opening. The thrust load from the worm shaft is transferred through the thrust bush through the main housing of the assembly.

A vehicle braking system includes a piston rod extendable from an air brake chamber, a rotatable cam shaft, and a slack adjuster coupled to the piston rod and the cam shaft. The slack adjuster is configured to rotate the cam shaft as the piston rod extends. The slack adjuster has a control gear coupled to the cam shaft such that the control gear rotates as the cam shaft is rotated. A pinion gear meshes with the control gear such that the pinion gear rotates as the control gear rotates, and a take-off gear meshes with the pinion gear such that the take-off gear rotates as the control gear rotates. A magnet coupled to the take-off gear is configured to rotate as the take-off gear rotates. A sensor is configured to sense rotation of the magnet, and an indicator is configured to indicate brake stroke of the piston rod.

A vehicle braking system includes a piston rod extendable from an air brake chamber, a rotatable cam shaft, and a slack adjuster coupled to the piston rod and the cam shaft. The slack adjuster is configured to rotate the cam shaft as the piston rod extends. The slack adjuster has a control gear coupled to the cam shaft such that the control gear rotates as the cam shaft is rotated. A pinion gear meshes with the control gear such that the pinion gear rotates as the control gear rotates, and a take-off gear meshes with the pinion gear such that the take-off gear rotates as the control gear rotates. A magnet coupled to the take-off gear is configured to rotate as the take-off gear rotates. A sensor is configured to sense rotation of the magnet, and an indicator is configured to indicate brake stroke of the piston rod.

The invention relates to a brake lever (20) for a drum brake arrangement (12), said brake lever being designed for transmitting the movement of a cylinder rod (14) to a brake shaft (22), wherein the brake lever (20) comprises a first portion (20a) delimiting a hole (24) for fitting the brake shaft (22) and a second portion (20b), which is configured to be pivotally connected to the cylinder rod (14) and wherein the first portion and the second portion are offset from each other with respect to a central axis (X24) of the hole (24). The brake lever further includes a stiffening member (28) that extends along a direction (L1) contained inside a plane (P1) perpendicular to the central axis (X24) of the hole and that includes an orifice (32) for fitting the brake shaft (22).