초록 ▼

A ventilated disc brake assembly including an annular housing mounted to the vehicle, The disc has a first radial planar friction surface and a first brake shoe is provided adjacent the first friction surface movable. The first brake shoe is a radial annular plate having at least a planar surface to

A ventilated disc brake assembly including an annular housing mounted to the vehicle, The disc has a first radial planar friction surface and a first brake shoe is provided adjacent the first friction surface movable. The first brake shoe is a radial annular plate having at least a planar surface to engage the first planar friction surface. A movable spring abutment is 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 and the first brake shoe. Rigid pusher link members extend between the spring abutment and the first brake shoe. Springs are arranged in an annular array and extend between the housing wall and the spring abutment such that the springs urge against the spring abutment to press the first brake shoe against the first friction surface of the disc. A first annular radially extending fluid bladder is provided between the intermediate wall and the spring abutment whereby the first bladder, when expanded, forces the spring abutment to overcome the spring to release the first brake shoe from the first friction surface of the disc, and the brake assembly being provided with conduit for directing a cooling gas to the ventilated discs in order to dissipate heat therefrom.

대표청구항 ▼

[ We claim:] [1.] A disc brake assembly for a vehicle wheel on a vehicle, wherein the wheel includes a hub journaled to an axle on the vehicle, the disc brake assembly is within the confines of the wheel and concentric with the axle, the disc brake assembly including an annular housing mounted to th

[ We claim:] [1.] A disc brake assembly for a vehicle wheel on a vehicle, wherein the wheel includes a hub journaled to an axle on the vehicle, the disc brake assembly is within the confines of the wheel and concentric with the axle, the disc brake assembly including an annular housing mounted to the vehicle and a first annular radial disc having first and second radial planar braking surfaces and at least a second annular radial disc having at least a third radial planar friction surface, and intermediate annular brake lining is provided between the first and second radial discs, and means are provided for restraining the intermediate brake lining from rotating with the discs but allowing axial movement thereof and means for mounting the first and second radial discs includes an adapter sleeve fixed to the wheel and provided with axial splines such that at least the first radial disc is capable of axial movement, a first brake shoe in the form of a radial annular member having at least a planar braking surface provided adjacent the first planar braking surface of the first radial disk, movable axially towards and away from the first braking surface of the disc for friction engagement therewith and release thereof, means provided on the housing for restraining the first brake shoe from rotating with the disc, a first annular radially extending fluid bladder being provided between the housing and the first brake shoe, the first bladder, when expanded, forcing the first brake shoe against the first braking surface of the first radial disc, causing the first radial disc to move axially on the adapter sleeve such that the second braking surface of the first radial disc contacts the intermediate brake lining which in turn moves axially to contact the third braking surface of said second radial disc.