Allied Corporation

Societe Anonyme D.b.a.

Bendix Spicer Foundation Brake LLC

Alliedsignal Truck Brake Systems Company

Ronald D Bailey

Ronald S Plantan

Dennis R Shamine

Robert J Nechvatal

Richard B Jacobs

Jacques Charbonnier

Anton Schneider

Michel Chotard

For an air-operated disc brake there is provided an internal brake actuator stroke indicator which provides an indication, readily ascertained from outside the brake caliper, of the amount of actuator stroke remaining in a disc brake apparatus before a remaining available actuator stroke limit is reached. In one embodiment, the stroke indicator is a mechanical device, readable through a sight glass in a caliper port, coupled to the brake actuator in a manner which results in rotary motion of the indicator when the brake actuator is displaced through its stroke. Alternatively, the indicator may be a rotary sensor such as an electrical potentiometer coupled to the actuator, where the potentiometer sends an electrical signal indicative of the actuator stroke to an external display, such as a remote actuator stroke display at a vehicle operator's position.

Apparatus and method for sensing disc brake actuator position

An adapter plate for a caliper disc brake assembly is attached to the inboard side of the axle flange of a vehicle axle housing. The adapter plate is generally C-shaped to allow mounting around the central region of the axle housing. The inboard positioning of the adapter plate allows mounting of larger brake calipers within a confined space. The caliper is connected to the axle housing by the adapter plate for the purpose of positioning the caliper relative to the rotor and resisting the torque developed by the action of the brake pads on the rotor. In order to adjust the lateral position of the caliper, the adapter plate, in one embodiment, has a pilot surface which allows the axle flange to be recessed within the adapter plate. In another embodiment, a secondary adapter plate bridges over the opening in the adapter plate to allow mounting of the adapter assembly to the entire bolt circle of the axle flange.

Adapter plate for disc brake installation

A drum brake assembly includes a pair of brake shoes which are slidably mounted on a fixed support. An elastic retention member is mounted on each of the shoes before they are assembled onto the fixed support. Each of the retention members includes a locking portion which engages the web of the brake shoes, and a pair of arm portions which extend from the locking portions and which engage the web of the brake shoe in such a way as to releasably maintain the locking portion engaged with the web of the brake shoe. When the brake shoes are assembled on the torque member, a portion of the torque member is provided with a sloped edge that engages the locking portion to release the latter as the brake shoes are assembled onto the fixed support, so that the retaining member then exerts a biasing force between the torque member and the brake shoes.

Axial retention of the shoe of a drum brake and a drum-brake shoe

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Elyria, OH, United States of America

Ronald D Bailey