Wabco Fahrzeugbremsen Gmbh

Wabco Westinghouse Steuerungstechnik Gmbh & Co.

Andreas Oberlander

Joachim Feldmann

Axel Kemner

Joachim Feldman

A control apparatus is provided which controls a motor, clutch and drive gear arrangement. The device consists of a movable control lever assembly which moves from a neutral position into at least one other operating position. The control apparatus includes a switching device that is operated as a two-part activating member. The activating member is mounted in a guide arrangement which remains in a fixed position in relationship to such control lever assembly. The activating member can be moved from a neutral position of such control lever assembly into a second position in which the activating member will act upon the switching assembly.

Control apparatus for a motor, clutch and gear drive arrangement

A mechanical release arrangement for a fluid-pressure-operated braking cylinder having an emergency brake/parking brake feature includes a cylinder housing having formed therein a brake actuation portion, an emergency portion, an intermediate lever portion, and a coaxially-disposed brake-release arrangement interacting therewith. An actuator piston is movable within one pressure chamber and has a hollow rod portion extending therefrom on which the lever arrangement is secured. An emergency piston is retracted to a release position against the force of a spring arrangement by fluid pressure communicated to an emergency chamber. An extension sleeve extends from the emergency piston and has a first toothed portion formed at one end. A release rod extends through the extension sleeve and has a second toothed portion formed near a reduced diameter end. An annular collar formed at the middle of the release rod contacts the hollow rod portion to transmit emergency braking force to the lever arrangement thereby when the first and second toothed portions are in an abutting contacting engagement. To release the brake following an emergency application, a release body can be activated to rotate the release rod such that the first and second toothed portions align in a mated position allowing independent relative movement between the release rod and emergency piston. A restoring arrangement returns the release rod to the original position upon repressurization of the emergency chamber.

Mechanical release arrangement for a fluid-pressure-operated braking

In a brake actuator device, wear of brake lining, which results in the increase of stroke of the brake actuator device consisting of piston and cylinder, is compensated by an adjuster which functions automatically when the brake is operated. The adjusting process takes place continuously and preferably at the onset of the actuation of the brake. A slip clutch turns the adjuster member which is connected by screw threads to the brake actuator piston to take up slack in the piston stroke. The slip clutch is driven by a rotary member that is in turn operated in response to actuation of the brake actuator.

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Hanover, Germany

Andreas Oberlander