Deutsche Perrot-bremse Gmbh

Perrot Bremsen Gmbh

Hellmut Jager

Paul Antony

Wlodzimierz Macke

Bernd Rupprecht

Wilfried Strauss

Rainer Baumgartner

Gunter Wetzel

Gerhard Haas

A wear monitoring apparatus for a disc brake, particularly a sliding caliper disc brake, is described. The disc brake has a sliding thrust piece which receives an application force exerted by an application mechanism, and a longitudinally adjustable transmission mechanism for transmitting the application force from the sliding thrust piece to a brake pad. Longitudinal adjustment of the transmission mechanism is a function of the extent of frictional wear of the brake pad. The wear monitoring apparatus includes a sensor for monitoring the mutual relative excursion of two elements which excursion is attributable to frictional wear of the brake pad. The sensor is mounted on the sliding thrust piece and/or the transmission mechanism and determines relative excursion between the sliding thrust piece and the transmission mechanism.

Wear monitoring apparatus for a disc brake

A disc brake is described which is actuatable by a fluid pressure actuation apparatus. A brake application shaft (8) with a brake lever (6) extending approximately perpendicularly from the shaft is disposed inside a brake caliper housing (1). The ring-shaped space between the brake lever (6) and the region of the brake caliper housing (1) which surrounds lever (6) is sealed-off by a seal (18).

Disc brake with a seal between a brake caliper and an actuating

An actuating mechanism for a sliding caliper disc brake has an actuator shaft with a projection in the form of an involute with an increasing radius. The involute is linked to an arcuate shaped rolling element through a pin fitting in recesses in the respective parts. The rolling element applies pressure to a thrust piece for actuating the brake when the actuator shaft is rotated by a brake lever. The axis of the actuator shaft is displaced from the center plane of the thrust piece so that the line of contact of the projection and the rolling element is constantly on the center plane.

Actuating mechanism for a sliding-caliper disc brake

An operating mechanism (17) for a sliding caliper disc brake including a caliper housing (1) a thrust element (9) slidably mounted in the housing for reciprocating movement toward and away from a disc brake (2), two thrust spindles (10, 11) in screw threaded engagement in the thrust element (9) each having on their ends caliper feet (12, 13) engaging against a brakehead on which brake linings (3) are mounted, a brake shaft (8) rotatably mounted in the housing (1) so that rotation of the brake shaft about an axis of rotation (B) in an actuating direction moves the thrust element (9) toward the brake disc and rotation in the opposite direction retracts the thrust element, a force-dependent freewheeling clutch drive (18) coupled on one side to the brake shaft (8) and on the other side to the thrust spindles (10, 11), a recess (16) in the brake shaft (8), and an operating mechanism (17) for coupling the clutch drive (18) to the thrust spindles (10, 11) having an operating shaft (25) extending through the recess (16) and through the driven operating ring (21) of the clutch drive, the operating ring having an internal profile interengaging with an external profile on shaft (25) with limited relative rotational movement therebetween provided by gap (S) which determines the brake clearance in the non-actuated position. Bevel gears (26, 27) on operating shaft (25) engaging with double gears (29, 30) on actuating shafts (31, 32) for operating the thrust spindles (10, 11) during use for maintaining proper brake clearance.

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Edingen-Neckarhausen, Germany

Hellmut Jager