Abstract A brake mechanism for use in conjunction with a rotatable disk including a pad adapted to selectively contact each side of the disk during the braking operation. The pads are independently controlled and one pad is caused to frictionally engage the disk to selective application of a fluid pressure whereas the second pad is adapted to frictionally contact the disk by means of spring pressure which is enacted upon the happening of the predetermined condition. The mechanism is mounted relative to the disk such that the engagement of either of the pads causes the brake mechanism to move axially of the disk such that the disk is engaged from both sides. The fluid operated pad is retained in a non-engaging position by a spring means whereas the spring operated pad is retained in the non-engaging position by a fluid pressure such that a decrease in pressure will cause the pad to engage the disk thus stopping the disk. The mechanism further includes a manual means for compressing the spring in the absence of fluid pressure.
A brake mechanism for use in conjunction with a rotating disk comprising; a housing member including a slot adapted to be mounted adjacent a rotatable disk such that the disk extends into the slot, a fluid pressure operated brake pad mounted within the housing at one side of the slot for selective movement into the slot for frictional engagement with the disk, a spring operated brake mounted to the other side of the slot for selective movement into the slot for frictional engagement with the disk, means for retaining the spring operated pad out of engagement with the disk, said means responsive to a preselected condition to release this pad and frictionally engage the disk, mounting means adapted to retain the housing in operational condition relative to the disk while allowing movement relative to the axis of rotation of said disk whereby the engagement of either brake pad will urge the housing to move until the disk is contacted upon both sides by the brake pads thus compensating for any irregularities in pad wear or disk configuration.
Claim 2
Dependent Claim
177 words
A brake mechanism for use in conjunction with a rotating disk comprising; a housing member including a slot adapted to be mounted adjacent a rotatable disk such that the disk extends into the slot, a fluid pressure operated brake pad mounted within the housing at one side of the slot for selective movement into the slot for frictional engagement with the disk, a spring operated brake mounted to the other side of the slot for selective movement into the slot for frictional engagement with the disk, means for retaining the spring operated pad out of engagement with the disk, said means responsive to a preselected condition to release this pad and frictionally engage the disk, mounting means adapted to retain the housing in operational condition relative to the disk while allowing movement relative to the axis of rotation of said disk whereby the engagement of either brake pad will urge the housing to move until the disk is contacted upon both sides by the brake pads thus compensating for any irregularities in pad wear or disk configuration.
Claim 3
Dependent Claim
16 words
A brake mechanism as in claim 1 wherein the spring force is provided by Belleville washers.
Claim 4
Dependent Claim
28 words
A brake mechanism as in claim 1 and further including a manual means to override the springs and release the brake even though the preselected condition has occurred.
Claim 5
Dependent Claim
30 words
A brake mechanism as in claim 1 wherein the fluid pressure for operating one of the pads may vary in quantity from that necessary to retain the other pad inoperative.
Claim 6
Dependent Claim
16 words
A brake mechanism as in claim 4 wherein the fluid may selectively be hydraulic or pneumatic.