US3917032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single mount and guide pin for a caliper of a disc brake assembly
Assignee: Motors Liquidation Co
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Filing: 1974-02-11
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Granted: 1975-11-04
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Expires: 1994-02-11
Abstract
Abstract A sliding caliper cooperates with an axially fixed rotatable disc to exert braking forces on the disc and transmit the braking torque from the caliper to a fixed support member. The caliper is slidably mounted on a single mount and guide pin which is fixed to the fixed caliper support. The caliper has a leg extending generally radially along one side of the disc, the leg having a cylinder formed therein and receiving the brake actuating piston. The leg also has an aperture through which the single mount and guide pin is received in sliding, guiding, and supporting relation. The leg has side surfaces positioned in circumferentially spaced relation relative to the disc and abutting mating surfaces on the fixed support member. The caliper is arcuately movable about the axis of the single guide and support pin to take up tolerance between the mating surfaces, depending upon the rotation of the disc during braking, the mating surfaces on the caliper leg transmitting brake torque to the fixed support member and effectively preventing arcuate movement of the caliper while permitting caliper removal from the disc when the single mount and guide pin is removed.
Inventors
- 👤 Jr Charles T Hoffman
- 👤 Edward H Warwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:09
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/226; F16D55/2265; F16D55/22655; F16D65/00; F16D65/02; F16D65/04; F16D65/092; F16D65/095; F16D65/097; F16D65/0973; F16D65/0979
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
142 words
A sliding caliper mount for a disc brake, said mount comprising: a caliper housing having a bore therethrough, a caliper mounting member including a fixed support and a caliper mount and guide pin secured to said support and extending through said bore, a first resilient bushing received in a groove formed in said bore adjacent one end thereof and supporting said pin in sliding and rotating relation, a second resilient bushing received in a groove formed in said pin adjacent one end thereof and supporting said caliper housing at said bore in sliding and rotating relation, said first and second bushings being relatively positioned so as to approach each other when the disc brake is actuated, and means on said caliper and said fixed support for transmitting brake torque therebetween and limiting the rotational movements of said caliper housing about said pin.
Claim 2
Dependent Claim
142 words
A sliding caliper mount for a disc brake, said mount comprising: a caliper housing having a bore therethrough, a caliper mounting member including a fixed support and a caliper mount and guide pin secured to said support and extending through said bore, a first resilient bushing received in a groove formed in said bore adjacent one end thereof and supporting said pin in sliding and rotating relation, a second resilient bushing received in a groove formed in said pin adjacent one end thereof and supporting said caliper housing at said bore in sliding and rotating relation, said first and second bushings being relatively positioned so as to approach each other when the disc brake is actuated, and means on said caliper and said fixed support for transmitting brake torque therebetween and limiting the rotational movements of said caliper housing about said pin.
Claim 3
Dependent Claim
353 words
A sliding mounting and guiding mechanism for a disc brake sliding caliper, said mechanism comprising: a caliper mounting pin assembly including a bolt having one section providing a cylindrical sliding surface and another section providing a reduced diameter threaded end and a shoulder at the juncture of said sections, a sleeve extending over a portion of said bolt another section and having one end abutting said shoulder and a cylindrical sliding surface forming an effective continuation of said bolt cylinder sliding surface; a fixed support bracket having a base plate section, a pair of brake force-receiving arms extending from said base plate section and provided with brake force-receiving slide surfaces, and a mount including a threaded aperture through said base plate section threadably receiving said bolt threaded end, the other end of said sleeve abutting said base plate section and thereby placing said sleeve in compression and said portion of said bolt another sectIon in tension with said bolt threaded tightly into said base plate section; a caliper housing having a mounting ear provided with a bore therethrough which said caliper mounting pin assembly extends in relative sliding relation, a cylinder section extending axially parallel to said bore and having axially acting brake actuating means therein, and a pair of flanges with one on each side of said cylinder section and having brake force-transmitting slide surfaces operatively engaging said support bracket brake force-receiving slide surfaces; said caliper housing bore a circumferentially extending recess formed therein adjacent one end thereof and positioned axially between said sleeve ends and having a circumferentially extending first resilient bushing therein engaging said sleeve cylindrical sliding surface in sealing and sliding relation, said bolt cylindrical sliding surface having a circumferentially extending recess formed therein and having a circumferentially extending second resilient bushing therein engaging said caliper housing bore in sealing and sliding relation, said caliper housing being progressively moved slidably on said mounting pin assembly to take up lining wear and said resilient bushings moving toward each other during such housing progressive movement to slidably progressively engage bore and pin assembly sliding surfaces which are sealed between said bushings.
Claim 4
Dependent Claim
353 words
A sliding mounting and guiding mechanism for a disc brake sliding caliper, said mechanism comprising: a caliper mounting pin assembly including a bolt having one section providing a cylindrical sliding surface and another section providing a reduced diameter threaded end and a shoulder at the juncture of said sections, a sleeve extending over a portion of said bolt another section and having one end abutting said shoulder and a cylindrical sliding surface forming an effective continuation of said bolt cylinder sliding surface; a fixed support bracket having a base plate section, a pair of brake force-receiving arms extending from said base plate section and provided with brake force-receiving slide surfaces, and a mount including a threaded aperture through said base plate section threadably receiving said bolt threaded end, the other end of said sleeve abutting said base plate section and thereby placing said sleeve in compression and said portion of said bolt another sectIon in tension with said bolt threaded tightly into said base plate section; a caliper housing having a mounting ear provided with a bore therethrough which said caliper mounting pin assembly extends in relative sliding relation, a cylinder section extending axially parallel to said bore and having axially acting brake actuating means therein, and a pair of flanges with one on each side of said cylinder section and having brake force-transmitting slide surfaces operatively engaging said support bracket brake force-receiving slide surfaces; said caliper housing bore a circumferentially extending recess formed therein adjacent one end thereof and positioned axially between said sleeve ends and having a circumferentially extending first resilient bushing therein engaging said sleeve cylindrical sliding surface in sealing and sliding relation, said bolt cylindrical sliding surface having a circumferentially extending recess formed therein and having a circumferentially extending second resilient bushing therein engaging said caliper housing bore in sealing and sliding relation, said caliper housing being progressively moved slidably on said mounting pin assembly to take up lining wear and said resilient bushings moving toward each other during such housing progressive movement to slidably progressively engage bore and pin assembly sliding surfaces which are sealed between said bushings.
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) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |