US3625314A — Sliding caliper-type disk brake

Claim 1

Independent Claim 270 words

A sliding caliper-type disk brake assembly for braking the rotation of an associated disk having oppositely facing braking surfaces, said assembly comprising a fixed torque reaction member having a pair of spaced arms extending across the outer periphery of the disk, a caliper assembly supported for sliding movement upon said arms and therebetween, said caliper assembly having an actuating leg disposed adjacent one of the disk braking surfaces and a reactive leg disposed adjacent the other of the disk braking surfaces, a first brake pad interposed between said actuating leg of said caliper and the one disk braking surface, said first brake pad having a backing plate and a frictional lining material adapted to engage the one disk braking surface, said backing plate having oppositely facing abutment surfaces adapted to engage a respective one of inwardly facing surfaces of said arms upon engagement of said lining with the one disk braking surface, a second brake pad interposed between said reactive leg of said caliper and the other disk braking surface, said second brake pad having a backing plate and a frictional lining adapted to engage the other disk braking surface, said backing plate of said second brake pad having surfaces facing each other adapted to engage outwardly facing surfaces of said arms upon engagement of its lining with the other disk braking surface, and actuating means carried by said caliper actuating leg for urging said first brake pad into engagement with the one disk braking surface and for sliding said caliper for urging of said second brake pad into engagement with the other disk braking surface by said reactive leg.

Claim 2

Dependent Claim 270 words

A sliding caliper-type disk brake assembly for braking the rotation of an associated disk having oppositely facing braking surfaces, said assembly comprising a fixed torque reaction member having a pair of spaced arms extending across the outer periphery of the disk, a caliper assembly supported for sliding movement upon said arms and therebetween, said caliper assembly having an actuating leg disposed adjacent one of the disk braking surfaces and a reactive leg disposed adjacent the other of the disk braking surfaces, a first brake pad interposed between said actuating leg of said caliper and the one disk braking surface, said first brake pad having a backing plate and a frictional lining material adapted to engage the one disk braking surface, said backing plate having oppositely facing abutment surfaces adapted to engage a respective one of inwardly facing surfaces of said arms upon engagement of said lining with the one disk braking surface, a second brake pad interposed between said reactive leg of said caliper and the other disk braking surface, said second brake pad having a backing plate and a frictional lining adapted to engage the other disk braking surface, said backing plate of said second brake pad having surfaces facing each other adapted to engage outwardly facing surfaces of said arms upon engagement of its lining with the other disk braking surface, and actuating means carried by said caliper actuating leg for urging said first brake pad into engagement with the one disk braking surface and for sliding said caliper for urging of said second brake pad into engagement with the other disk braking surface by said reactive leg.

Claim 3

Dependent Claim 216 words

A disk brake assembly including a brake pad, actuating means for bringing said brake pad into frictional engagement with an associated brake disk, first and second spaced torque arms, abutment means on said first torque arm and on said brake pad adapted to engage upon movement of said brake pad into frictional engagement with the associated brake disk, said brake pad normally being ineffective to transmit any substantial braking force to said second torque arm upon engagement with the disk, said first torque arm having a portion thereon which deflects a greater amount than a portion on said second torque arm when said brake pad transmits braking force to said first torque arm, and means for transmitting a portion of the braking torque from said brake pad to said portion of said second torque arm upon a predetermined deflection of said portion of said first torque arm for limiting the loading upon said first torque arm. 3. A disk brake assembly as set forth in claim 2 wherein the means for transmitting a portion of the braking torque from the brake pad to the second torque arm includes the actuating means, the first torque arm being adapted to engage the actuating means upon its predetermined deflection for urging said actuating means against said second torque arm.

Claim 4

Dependent Claim 272 words

A disk brake assembly for braking the rotation of an associated disk comprising a first brake pad adapted to be disposed on one side of the disk, a second brake pad adapted be disposed on the other side of the disk, actuating means for bringing said brake pads into frictional engagement with the respective sides of the associated disk, a first torque reaction member adapted to be fixed against movement with respect to the disk, means on said first brake pad engageable on one side of said disk with means on said first torque reaction member upon engagement of said first brake pad with the disk when the disk is rotating in one direction for holding said first brake pad against rotation about the axis of the disk and for absorbing the frictional force exerted upon said first brake pad, a second torque reaction member adapted to be fixed against movement with respect to the disk, and means on said second brake pad engageable on the other side of said disk with means on said second torque reaction member upon engagement of said second brake pad with the disk when the disk is rotating in said one direction for holding said second brake pad against rotation about the axis of said disk and for absorbing the frictional force exerted on said second brake pad, the area of engagement of said first brake pad with said first torque reaction member lying on the opposite side of a radial plane containing the axis of rotation of the disk from the area of engagement of said second brake pad with said second torque reaction member.

Claim 5

Dependent Claim 272 words

A disk brake assembly for braking the rotation of an associated disk comprising a first brake pad adapted to be disposed on one side of the disk, a second brake pad adapted be disposed on the other side of the disk, actuating means for bringing said brake pads into frictional engagement with the respective sides of the associated disk, a first torque reaction member adapted to be fixed against movement with respect to the disk, means on said first brake pad engageable on one side of said disk with means on said first torque reaction member upon engagement of said first brake pad with the disk when the disk is rotating in one direction for holding said first brake pad against rotation about the axis of the disk and for absorbing the frictional force exerted upon said first brake pad, a second torque reaction member adapted to be fixed against movement with respect to the disk, and means on said second brake pad engageable on the other side of said disk with means on said second torque reaction member upon engagement of said second brake pad with the disk when the disk is rotating in said one direction for holding said second brake pad against rotation about the axis of said disk and for absorbing the frictional force exerted on said second brake pad, the area of engagement of said first brake pad with said first torque reaction member lying on the opposite side of a radial plane containing the axis of rotation of the disk from the area of engagement of said second brake pad with said second torque reaction member.

Claim 6

Dependent Claim 56 words

A disk brake assembly as set forth in claim 4 wherein the first brake pad normally transfers substantially no frictional force to the second torque reaction member and further including means for transferring frictional force from said first brake pad to the second torque reaction member upon a predetermined loading of the first torque reaction member.

Claim 7

Dependent Claim 88 words

A disk brake assembly as set forth in claim 4 wherein the actuating means comprises a caliper supported for sliding movement relative to the disk in a direction substantially parallel to the axis of rotation of the disk, said sliding caliper including reactive means in engagement with the second brake pad for actuating the second brake pad upon sliding movement of the caliper and operating means associated with the first brake pad for moving the first brake pad into engagement with the disk and for sliding the caliper.

Claim 8

Dependent Claim 23 words

A disk brake assembly as set forth in claim 6 wherein the caliper is supported for sliding movement by the torque reaction members.

Claim 9

Dependent Claim 40 words

A disk brake assembly as set forth in claim 7 further including antirattle means interposed between the torque reaction members and the sliding caliper for resiliently holding said caliper against radial and circumferential movement relative to the torque reaction members.

Claim 10

Dependent Claim 215 words

A disk brake assembly for braking the rotation of an associated disk having oppositely facing braking surfaces, said brake assembly comprising a first brake pad adapted to frictionally engage one of the disk braking surfaces, a second brake pad adapted to engage the other of the disk braking surfaces, actuating means for bringing said brake pads into frictional engagement with the respective disk braking surfaces, a torque reaction member adapted to be affixed against rotation relative to the associated disk, said torque reaction member having a pair of circumferentially spaced apart arms extending across the periphery of the associated disk, abutment means on said first brake pad adapted to engage a first of said torque reaction member arms on one side of the disk upon engagement of said first brake pad with the disk foR holding said first brake pad against rotation about the axis of said disk when the disk is rotating in one direction and abutment means on said second brake pad adapted to engage the second of said torque reaction member arms on the other side of the disk upon engagement of said second brake pad with the disk for holding said second brake pad against rotation about the axis of said disk when the disk is rotating in said one direction.

Claim 11

Dependent Claim 215 words

A disk brake assembly for braking the rotation of an associated disk having oppositely facing braking surfaces, said brake assembly comprising a first brake pad adapted to frictionally engage one of the disk braking surfaces, a second brake pad adapted to engage the other of the disk braking surfaces, actuating means for bringing said brake pads into frictional engagement with the respective disk braking surfaces, a torque reaction member adapted to be affixed against rotation relative to the associated disk, said torque reaction member having a pair of circumferentially spaced apart arms extending across the periphery of the associated disk, abutment means on said first brake pad adapted to engage a first of said torque reaction member arms on one side of the disk upon engagement of said first brake pad with the disk foR holding said first brake pad against rotation about the axis of said disk when the disk is rotating in one direction and abutment means on said second brake pad adapted to engage the second of said torque reaction member arms on the other side of the disk upon engagement of said second brake pad with the disk for holding said second brake pad against rotation about the axis of said disk when the disk is rotating in said one direction.

Claim 12

Dependent Claim 88 words

A disk brake assembly as set forth in claim 9 wherein the actuating means comprises a caliper supported for sliding movement relative to the disk in a direction substantially parallel to the axis of rotation of the disk, said sliding caliper including reactive means in engagement with the second brake pad for actuating the second brake pad upon sliding movement of the caliper and operating means associated with the first brake pad for moving the first brake pad into engagement with the disk and for sliding the caliper.

Claim 13

Dependent Claim 24 words

A disk brake assembly as set forth in claim 10 wherein the caliper is supported for sliding movement upon the torque reaction member arms.

Claim 14

Dependent Claim 69 words

A disk brake assembly as set forth in claim 9 further including second abutment means on said first brake pad adapted to engage the second torque reaction member arm and second abutment means on the second brake pad adapted to engage the first torque reaction member arm upon engagement of said brake pads with the disk when the disk is rotating in a direction opposite to said one direction.

Claim 15

Dependent Claim 94 words

A disk brake assembly as set forth in claim 12 wherein the actuating means comprises a caliper supported for sliding movement relative to the disk in a direction substantially parallel to the axis of rotation of the disk and upon the torque reaction member arms, said caliper including reactive means in engagement with the second brake pad for actuating said second brake pad upon sliding movement of said caliper and operating means associated with the first brake pad for moving said first brake pad into engagement with the disk and for sliding said caliper.

Claim 16

Dependent Claim 43 words

A disk brake assembly as set forth in claim 13 further including antirattle means interposed between the caliper and the torque reaction member arms for slidably supporting the caliper and for holding the caliper against rattling relative to said torque reaction member arms.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1974-12-06	1975-06-07	1975-12-07	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1978-12-06	1979-06-07	1979-12-07	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1982-12-06	1983-06-07	1983-12-07	$7700.00	Window Closed / Lapsed

Sliding caliper-type disk brake

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