초록 ▼

A heavy-duty disc brake assembly and pneumatic actuating assembly therefor. The pneumatic actuating assembly may include a pair of annular pistons operatively connected for simultaneous movement thereof, apparatus being provided for supplying air under pressure to the working faces thereof, or a sin

A heavy-duty disc brake assembly and pneumatic actuating assembly therefor. The pneumatic actuating assembly may include a pair of annular pistons operatively connected for simultaneous movement thereof, apparatus being provided for supplying air under pressure to the working faces thereof, or a single piston spring biased to braking position with apparatus for supplying air under pressure to either face thereof. The disc brake assembly includes a plurality of relatively movable rotor and stator discs, and preferably a closed cooling system with circulatory loop is provided.

대표청구항 ▼

A heavy-duty disc brake assembly comprising: a. a plurality of stator discs, b. a plurality of rotor discs rotatable about an axis of rotation and juxtaposed with said stator discs, c. a casing containing said discs, said casing having two ends and being adapted to be disposed so that said two ends

A heavy-duty disc brake assembly comprising: a. a plurality of stator discs, b. a plurality of rotor discs rotatable about an axis of rotation and juxtaposed with said stator discs, c. a casing containing said discs, said casing having two ends and being adapted to be disposed so that said two ends are spaced along the length of an axle of a vehicle on which said assembly is to be installed, said discs being disposed in said casing so that the disc surfaces thereof are perpendicular to said axis of rotation, d. means for mounting said rotor and stator discs for relative movement toward and away from each other and said ends of said casing along said axis of rotation between a first position wherein said rotor and stator discs are relatively widely spaced from each other and no braking action is provided thereby, to a second position wherein said rotor and stator discs are very close to or in engagement with each other and braking action is provided thereby, and e. means mounted at one end of said casing for moving said discs from said first position to said second position, said means including (i) a first annular piston disposed in an annular cylinDer at said one end of said casing, said piston having a working face thereof adapted to be exposed to air under pressure and said cylinder having a vent at one end thereof opposite the working face of said first piston, (ii) a second annular piston disposed in an annular cylinder at said one end of said casing and having a working face thereof adapted to be exposed to air under pressure and an opposite face thereof adapted to be brought into operative engagement with one of said discs for effecting relative movement between all of said discs, (iii) means operatively connecting said first and second pistons together so that movement of one piston in one direction results in movement of the other piston in the same direction, said means including a plurality of rod means, (iv) an air passage extending from the working face of said first piston to the working face of said second piston through one of said rod means, and (v) means for connecting the working faces of said pistons to a source of air under pressure.