초록 ▼

An improved truck disc brake using a spring loaded safety brake and a pneumatic bladder for releasing the safety brake as well as a service brake enhancing bladder and a pair of rotor brake discs. The brake discs are ventilated and include ventilation channels extending radially thereof and vent air

An improved truck disc brake using a spring loaded safety brake and a pneumatic bladder for releasing the safety brake as well as a service brake enhancing bladder and a pair of rotor brake discs. The brake discs are ventilated and include ventilation channels extending radially thereof and vent air is deflected into the brake assembly by means of a scoop on the exterior of the brake assembly passing through openings in the brake assembly and the rotor brake discs act as an impeller moving the ventilation air outwardly thereof to dissipate the heat. A wear gauge is provided to determine the wear of the brake linings and discs and a quick release valve is mounted in the brake assembly adjacent the pneumatic bladder related to the service brake, to quickly release the air when required. Temperature sensors are provided within the brake assembly to read the temperature of the brake assembly. A radial groove extends on the friction surface of the radial disc to provide an air cushion between the brake linings and the friction surface of the disc and to discharge debris.

대표청구항 ▼

A combination disc brake assembly and a vehicle wheel for a vehicle wherein the wheel includes a hub journaled to an axle on the vehicle, the disc brake assembly is concentric with the axle, the disc brake assembly including a housing mounted to the vehicle and at least a radial disc within the hous

A combination disc brake assembly and a vehicle wheel for a vehicle wherein the wheel includes a hub journaled to an axle on the vehicle, the disc brake assembly is concentric with the axle, the disc brake assembly including a housing mounted to the vehicle and at least a radial disc within the housing, and means mounting the disc to the wheel, the disc having at least a first radial planar friction surface and a first brake shoe provided adjacent the first planar friction surface movable axially towards and away from the first friction surface of the disc for friction engagement therewith and release thereof, an intermediate wall member mounted within the housing and fixed thereto and extending parallel with the radial disc and located such that the first brake shoe moves axially between the intermediate wall and the radial disc, means provided for restraining the first brake shoe from rotating with the disc, movable spring abutment means mounted for axial movement within the housing between the intermediate wall and a housing wall such that the intermediate wall is between the movable spring abutment means and the first brake shoe, rigid pusher link members extending between the spring abutment means and the first brake shoe and passing by the intermediate wall, a spring means extending between the housing wall and the spring abutment means such that the spring means urges against the spring abutment means to press the first brake shoe against the first friction surface of the disc in a safety brake mode, the brake shoe including linings to engage the first planar friction surface of the disc and the improvement including wear gauge means including a spring mounted plunger provided on the housing wall and abutting against the spring abutment means and spaced from the first brake shoe, and wherein the spring urges the plunger against the spring abutment means and a portion of the plunger extends beyond the housing wall whereby the brake wear will be measured continuously by determining the amount of protrusion of the plunger exterior of the housing wall in a safety brake mode to determine the wear of the linings and disc of the brake assembly.