Patent US3682277A successfully refreshed from Google Patents.
US3682277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc brakes and mounting structure therefor
Assignee: Girling Ltd
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Filing: 1970-07-24
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Granted: 1972-08-08
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Expires: 1990-07-24
Abstract
Abstract The invention concerns disc brakes of the kind in which only one of the friction elements is directly moved into engagement with the brake disc or other rotor, the other friction element being displaced as a result of reaction forces set up by such engagement and for this purpose being carried by a caliper member which is slidable responsive to such reaction forces. In a disc brake of this type in accordance with the present invention, the caliper is mounted for sliding movement on a first pin arranged between the caliper member and a fixed torque plate member adjoining the brake disc, rotation of the caliper member about said first pin being restrained by a second pin secured to one of said members in circumferentially spaced relation with said first pin. The second pin is located in an aperture in the other of said members by an annular eccentric bush which at least partially embraces the second pin and is slidably received in said aperture to enable tolerance in the circumferential spacing of the pins to be accommodated during assembly of the brake and to enable the drag force to be aportioned between the two pins.
Inventors
- 👤 Peter William Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:20
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/226; F16D55/2265; F16D55/227; F16D55/22655; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/56; F16D65/567; F16D2121/00; F16D2121/02; F16D2121/14; F16D2123/00; F16D2125/00; F16D2125/18; F16D2125/20; F16D2125/22; F16D2125/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
139 words
In a disc brake of the type in which only one of a pair of friction elements is directly moved into engagement with the brake disc; the other friction element being displaced as the result of reaction forces set up by such engagement and for this purpose being carried by a caliper member, in combination with said caliper member, a first pin arranged between the caliper member and a fixed torque plate member adjacent the brake disc and slidably mounting said caliper member, a second pin secured to one of said members in circumferentially spaced relation with said first pin for restraining rotation of the caliper member about said first pin, means defining an aperture in the other of said members, and an annular eccentric bush slidably received in said aperture and at least partially embracing said second pin.
Claim 2
Dependent Claim
139 words
In a disc brake of the type in which only one of a pair of friction elements is directly moved into engagement with the brake disc; the other friction element being displaced as the result of reaction forces set up by such engagement and for this purpose being carried by a caliper member, in combination with said caliper member, a first pin arranged between the caliper member and a fixed torque plate member adjacent the brake disc and slidably mounting said caliper member, a second pin secured to one of said members in circumferentially spaced relation with said first pin for restraining rotation of the caliper member about said first pin, means defining an aperture in the other of said members, and an annular eccentric bush slidably received in said aperture and at least partially embracing said second pin.
Claim 3
Dependent Claim
44 words
A disc brake according to claim 1, in which said second pin is of circular cross-section, and said annular eccentric bush has an inner diameter substantially that of the outer diameter of said second pin and an outer diameter substantially that of said aperture.
Claim 4
Dependent Claim
80 words
A disc brake according to claim 2 in which said aperture is located in the caliper member and the eccentric bush is freely rotatable within said aperture whereby tolerance in the circumferential spacing of said first and second pins can be accommodated during assembly of the brake by rotation of the eccentric bush within said aperture to shift the axis of the aperture in the eccentric bush which receives said second pin into line with the axis of that pin.
Claim 5
Dependent Claim
75 words
A disc brake according to claim 2 in which said aperture is located in the caliper member and the eccentric bush is freely rotatable within said aperture, the spacing of said first and second pins being Preselected during assembly of the brake to achieve a particular orientation of the eccentric bush relative to said second pin and said aperture, whereby the trailing pin is made to take off a predetermined proportion of the drag force.
Claim 6
Dependent Claim
33 words
A disc brake according to claim 2 in which said first pin comprises a sleeve and a bolt which clamps the sleeve to the torque plate so that the sleeve is under compression.
Claim 7
Dependent Claim
49 words
A disc brake according to claim 2 in which said first pin comprises a sleeve and an elongated screw-threaded stud which engages corresponding internal screw threads on said sleeve located at the end of the sleeve remote from said torque plate for clamping said sleeve to said torque plate.
Claim 8
Dependent Claim
59 words
A disc brake according to claim 6 in which said stud is initially provided with a head to enable the stud to be screwed into said torque plate in a manner to apply a compressive load to said sleeve, said head being arranged to shear off the stud when a predetermined compressive load has been applied to said sleeve.
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |