US3616876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding caliper disc brake and guide and retention means therefor
Assignee: Motors Liquidation Co
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Filing: 1969-12-18
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Granted: 1971-11-02
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Expires: 1989-12-18
Abstract
Abstract A sliding caliper disc brake in which a stationary carrier and a caliper housing have registering grooves formed in their torquecarrying abutment faces. Guide and retention means received in the grooves act as retention keys which permit sliding movement of the caliper housing relative to the carrier member, sliding movement of the guide and retention means in relation to the carrier member and the caliper housing with abutments limiting the sliding movement relative to the carrier member, the guide and retention means also mounting the brake pad assemblies in the caliper housing for sliding movement. Each guide and retention means includes a sleeve member with a pin inserted axially through the sleeve to hold the brake assembly together. With only the sleeve member in place, the brake pad assemblies are held in the caliper housing and the caliper housing can be later installed in position on the carrier member with the brake pad assemblies in place. When the pin is inserted, the caliper housing, together with the brake pad assemblies, is retained against radial movement. The guide and retention means has a resilient shock load absorbing arrangement which permits the brake torque to be transmitted through the abutment faces while preventing radial movement and undamped torque transfer.
Inventors
- 👤 Frank W Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:21
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/226; F16D55/2262; F16D2055/0004; F16D2055/0041; F16D2200/00; F16D2200/0034; F16D2200/0056
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
179 words
A disc brake comprising: a rotor to be braked; a fixed support member; a caliper assembly having a housing member with piston means therein operatively related to an inner friction member and an outer friction member for braking said rotor; and caliper assembly supporting and guiding and retaining means including a pair of arms on said fixed support member circumferentially spaced with respect to said rotor, each arm having a portion in the plane of said rotor, said caliper housing member and said fixed support member, including said arm portions, and said friction members having brake force transmitting abutting faces and registering grooves in said faces extending transversely of the plane of said rotor, and circumferentially spaced caliper housing member and friction member guide and retention means received in said registering grooves in sliding key relation to said caliper housing member and said friction members and said arms, said friction members abutting faces engaging one of said other members abutting faces in brake force transmitting relation for transmitting brake force directly therebetween and bypassing said guide and retention means.
Claim 2
Dependent Claim
179 words
A disc brake comprising: a rotor to be braked; a fixed support member; a caliper assembly having a housing member with piston means therein operatively related to an inner friction member and an outer friction member for braking said rotor; and caliper assembly supporting and guiding and retaining means including a pair of arms on said fixed support member circumferentially spaced with respect to said rotor, each arm having a portion in the plane of said rotor, said caliper housing member and said fixed support member, including said arm portions, and said friction members having brake force transmitting abutting faces and registering grooves in said faces extending transversely of the plane of said rotor, and circumferentially spaced caliper housing member and friction member guide and retention means received in said registering grooves in sliding key relation to said caliper housing member and said friction members and said arms, said friction members abutting faces engaging one of said other members abutting faces in brake force transmitting relation for transmitting brake force directly therebetween and bypassing said guide and retention means.
Claim 3
Dependent Claim
195 words
A disc brake comprising: a rotatable disc, a stationary member; a braking unit comprising first and second brake pad assemblies adapted to brake said disc, a caliper member straddling said disc and receiving said brake pad assemblies therein, and brake actuating means in said caliper member operatively related to said brake pad assemblies for braking said disc; said members having registering groove means formed therein and extending transversely of the plane of said disc; and resilient supporting means received in said groove means and supporting said braking unit on said stationary member in sliding relation relative to said stationary member in directions transversely of the plane of said disc; said brake pad assemblies having means formed thereon receiving said resilient supporting means so as to be carried thereby with said brake pad assemblies being in sliding relation relative to said caliper member and said stationary member and said resilient supporting means in directions transversely of the plane of said disc; and abutment means on said brake pad assemblies and said caliper member and said stationary member for transmitting braking forces from said brake pad assemblies to said stationary member independently of said resilient supporting means.
Claim 4
Dependent Claim
195 words
A disc brake comprising: a rotatable disc, a stationary member; a braking unit comprising first and second brake pad assemblies adapted to brake said disc, a caliper member straddling said disc and receiving said brake pad assemblies therein, and brake actuating means in said caliper member operatively related to said brake pad assemblies for braking said disc; said members having registering groove means formed therein and extending transversely of the plane of said disc; and resilient supporting means received in said groove means and supporting said braking unit on said stationary member in sliding relation relative to said stationary member in directions transversely of the plane of said disc; said brake pad assemblies having means formed thereon receiving said resilient supporting means so as to be carried thereby with said brake pad assemblies being in sliding relation relative to said caliper member and said stationary member and said resilient supporting means in directions transversely of the plane of said disc; and abutment means on said brake pad assemblies and said caliper member and said stationary member for transmitting braking forces from said brake pad assemblies to said stationary member independently of said resilient supporting means.
Claim 5
Dependent Claim
215 words
Guide and retention means for a disc brake assembly having a fixed support frame and a sliding caliper frame and brake pad assemblies and a rotor to be braked, said guide and retention means comprising: a sleeve member adapted to provide a retention key for retaining the brake pad assemblies in the caliper frame while permitting sliding movement of the brake pad assemblies in directions substantially parallel to the sleeve member axis, and a pin member removably positioned axially in said sleeve member and cooperating therewith to provide a reTention key for limiting movement of the caliper frame relative to the support frame to sliding movement in directions substantially parallel to the sleeve member axis, at least one of said members having resilient transverse shock load absorbing means for absorbing shock loads exerted between the frames transversely of the sleeve member axis, said sleeve member having transverse chordal slot means provided therein, said slot means being of a greater axial width than the width of the portion of the fixed support frame adapted to engage said guide and retention means, for receiving the portion of the fixed support frame therein; said pin member extending through a part of said transverse choral slot means for abutting engagement with said support frame transversely of said pin member.
Claim 6
Dependent Claim
215 words
Guide and retention means for a disc brake assembly having a fixed support frame and a sliding caliper frame and brake pad assemblies and a rotor to be braked, said guide and retention means comprising: a sleeve member adapted to provide a retention key for retaining the brake pad assemblies in the caliper frame while permitting sliding movement of the brake pad assemblies in directions substantially parallel to the sleeve member axis, and a pin member removably positioned axially in said sleeve member and cooperating therewith to provide a reTention key for limiting movement of the caliper frame relative to the support frame to sliding movement in directions substantially parallel to the sleeve member axis, at least one of said members having resilient transverse shock load absorbing means for absorbing shock loads exerted between the frames transversely of the sleeve member axis, said sleeve member having transverse chordal slot means provided therein, said slot means being of a greater axial width than the width of the portion of the fixed support frame adapted to engage said guide and retention means, for receiving the portion of the fixed support frame therein; said pin member extending through a part of said transverse choral slot means for abutting engagement with said support frame transversely of said pin member.
Claim 7
Dependent Claim
202 words
A disc brake assembly comprising: a brake rotor, a stationary carrier member having said rotor rotatably mounted relative thereto, a clamping member straddling a portion of the periphery of said rotor and slidably mounted on said carrier member, a pair of brake pad members on opposite sides of said rotor and in said clamping member, means for directly applying one of said pad members to one face of said rotor and by reaction effecting axial movement of said clamping member in the opposite direction to apply the other pad member to the other face of said rotor, first abutment means on said carrier member and second abutment means on said clamping member in abutting alignment with said first abutment means for limiting circumferential movement of said clamping member with respect to said carrier member, said first abutment means and said second abutment means having axially extending registering groove means therein, and guiding and retention means for said clamping member and said brake pad members so that said brake pad members are caused thereby said guiding and retention means being slidably mounted in said grooves so that axial relative movement is permitted between said guiding and retention means and each of said members.
Claim 8
Dependent Claim
202 words
A disc brake assembly comprising: a brake rotor, a stationary carrier member having said rotor rotatably mounted relative thereto, a clamping member straddling a portion of the periphery of said rotor and slidably mounted on said carrier member, a pair of brake pad members on opposite sides of said rotor and in said clamping member, means for directly applying one of said pad members to one face of said rotor and by reaction effecting axial movement of said clamping member in the opposite direction to apply the other pad member to the other face of said rotor, first abutment means on said carrier member and second abutment means on said clamping member in abutting alignment with said first abutment means for limiting circumferential movement of said clamping member with respect to said carrier member, said first abutment means and said second abutment means having axially extending registering groove means therein, and guiding and retention means for said clamping member and said brake pad members so that said brake pad members are caused thereby said guiding and retention means being slidably mounted in said grooves so that axial relative movement is permitted between said guiding and retention means and each of said members.
Claim 9
Dependent Claim
44 words
The disc brake assembly of claim 4, said guiding and retention means having third abutment means thereon limiting the available axial relative movement between said guiding and retention means and said brake pad members and at least one of the other of said members.
Claim 10
Dependent Claim
67 words
The disc brake assembly of claim 4, said guiding and retention means engaging said groove means in said clamping member and said carrier member and preventing any substantial radial movement of said clamping member relative to said carrier member, said first and second abutment means having generally radially and axially extending interface means through which braking forces are transmitted between said clamping member and said carrier member.
Claim 11
Dependent Claim
100 words
The disc brake assembly of claim 4, said brake pad members including backing plates to which brake lining material is affixed, each of said backing plates having an end provided with abutment means engaging said second abutment means and transmitting braking forces therethrough to said carrier member independently of said guiding and retention means, said backing plate end having a notch formed therein through which said guiding and retention means is received, said notch and said groove means in said clamping member cooperating with said guiding and retention means to slidably retain said brake pad members in said clamping member.
Claim 12
Dependent Claim
62 words
The disc brake assembly of claim 4, said guiding and retention means more particularly including: sleeve means having an exterior surface configuration comprising an arcuate section in substantially axial alignment with one of said abutment means groove means, and arcuately spaced flat sections provided with ribs extending lengthwise of said sleeve means and engaging the other of said abutment means groove means.
Claim 13
Dependent Claim
24 words
The disc brake assembly of claim 4, said guiding and retention means including axially apertured generally cylindrical means and pin means extending axially therethrough.
Claim 14
Dependent Claim
47 words
The disc brake assembly of claim 9, said cylindrical means having transverse slot means cut chordally therethrough and receiving said carrier member abutment means and upon removal of said pin means from said generally cylindrical means permitting outward removal of said clamping member from said carrier member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |