US3782510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc brake and support structure therefor
Assignee: Girling Ltd
•
Filing: 1971-05-25
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Granted: 1974-01-01
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Expires: 1991-05-25
Abstract
Abstract In a disc brake of the sliding caliper reaction type friction pad assemblies for engagement with opposite faces of a rotatable disc are located in the caliper which slides in a direction parallel with the axis of the disc between a pair of circumferentially spaced guiding members forming part of a stationary drag-taking member. The oppositely facing innermost faces of the guiding members are each formed with at least three axially and radially spaced co-planar surfaces upon which the caliper is directly slidably guided.
Inventors
- 👤 H Rath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:07
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/56; F16D65/567; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/226; F16D55/2262; F16D65/02; F16D65/04; F16D65/092; F16D65/095; F16D65/097; F16D65/0973; F16D65/0974; F16D65/0975; F16D65/0976; F16D2055/0004; F16D2055/0016; F16D2055/002; F16D2055/0041; F16D2055/007; F16D2055/0075; F16D2055/0091; F16D2121/00; F16D2121/02; F16D2121/14; F16D2123/00; F16D2125/00; F16D2125/18; F16D2125/20; F16D2125/22; F16D2125/26
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
316 words
In a disc brake for a vehicle comprising a rotatable disc having opposite faces, a stationary drag-taking member adjacent to one face of said disc, a caliper straddling a portion of the peripheral edge of said disc and guided on said stationary dragtaking member for movement in a direction parallel with the axis of said disc, first and second friction pad assemblies for engagement with the said opposite faces of the said disc, and actuating means for applying said first friction pad assembly directly to one face of said disc, said second friction pad assembly being applied to the opposite face of said disc by the reaction of said applying means, the invention wherein said stationary drag-taking member includes a pair of circumferentially spaced guiding members, each comprising an arm, and an extension continuous with said arm and extending over said peripheral edge of said disc, and said guiding members have oppositely facing innermost faces, each innermost face being formed with at least three axially and radially spaced co-planar surfaces upon which said caliper is slidable guided directly for movement in said direction parallel with said axis of said disc, including coupling means co-operating with adjacent parts of said caliper and said stationary drag-taking member to limit movement of said calipeR with respect to said stationary drag-taking member, at least in a radially outwards direction, said coupling means comprising a member which projects through an opening in an arm and which is received at its innermost end in a longitudinal extending groove in an adjacent face of said caliper, and there is a clearance between said innermost end of said member and the base of said groove in which it is received, a compression spring acting between said member and said base of said groove to urge into engagement complementary surfaces on said caliper and said drag-taking member at the circumferentially opposite end of said brake.
Claim 2
Dependent Claim
316 words
In a disc brake for a vehicle comprising a rotatable disc having opposite faces, a stationary drag-taking member adjacent to one face of said disc, a caliper straddling a portion of the peripheral edge of said disc and guided on said stationary dragtaking member for movement in a direction parallel with the axis of said disc, first and second friction pad assemblies for engagement with the said opposite faces of the said disc, and actuating means for applying said first friction pad assembly directly to one face of said disc, said second friction pad assembly being applied to the opposite face of said disc by the reaction of said applying means, the invention wherein said stationary drag-taking member includes a pair of circumferentially spaced guiding members, each comprising an arm, and an extension continuous with said arm and extending over said peripheral edge of said disc, and said guiding members have oppositely facing innermost faces, each innermost face being formed with at least three axially and radially spaced co-planar surfaces upon which said caliper is slidable guided directly for movement in said direction parallel with said axis of said disc, including coupling means co-operating with adjacent parts of said caliper and said stationary drag-taking member to limit movement of said calipeR with respect to said stationary drag-taking member, at least in a radially outwards direction, said coupling means comprising a member which projects through an opening in an arm and which is received at its innermost end in a longitudinal extending groove in an adjacent face of said caliper, and there is a clearance between said innermost end of said member and the base of said groove in which it is received, a compression spring acting between said member and said base of said groove to urge into engagement complementary surfaces on said caliper and said drag-taking member at the circumferentially opposite end of said brake.
Claim 3
Dependent Claim
61 words
The invention as claimed in claim 1, wherein said member comprises a bolt screwed through a tapped opening in said arm and having a shank of which a portion terminating at its free innermost end is reduced in diameter whereby a shoulder defined by a step in a change in diameter forms an abutment for one end of said compression spring.
Claim 4
Dependent Claim
53 words
The invention as claimed in claim 1, wherein said compression spring is wound continuously with a tension spring, and said member forms an abutment for one end of said compression spring and an anchorage for one end of said tension spring, the opposite end of said tension spring being anchored to said caliper.
Claim 5
Dependent Claim
253 words
In a disc brake for a vehicle comprising a rotatable disc having opposite faces, a stationary drag-taking member adjacent to one face of said disc, a caliper straddling a portion of the peripheral edge of said disc and guided on said stationary drag-taking member for movement in a direction parallel with the axis of said disc, first and second friction pad assemblies for engagement with said opposite faces of said disc, means on said drag-taking member slideably supporting said first friction pad, means interconnecting said caliper and said second friction pad, and actuating means carried by said caliper for applying said first friction pad assembly directly to one face of said disc said second friction pad assembly being applied to the opposite face of said disc by the reaction of said caliper, the invention wherein said stationary drag-taking member includes a pair of circumferentially spaced guiding members, each comprising an arm, and an extension continuous with said arm and extending over said peripheral edge of said disc, and said guiding members have oppositely facing parallel innermost faces, each innermost face being formed with at least three axially and radially spaced integral discrete co-planar surfaces upon which said caliper is slidably guided directly for movement in said direction parallel with said axis of said disc, two of said co-planar surfaces are located at portions which terminate at axially opposed ends of each guiding member, and a third of said co-planar surfaces is located at a position intermediate the opposed ends of each guiding member.
Claim 6
Dependent Claim
253 words
In a disc brake for a vehicle comprising a rotatable disc having opposite faces, a stationary drag-taking member adjacent to one face of said disc, a caliper straddling a portion of the peripheral edge of said disc and guided on said stationary drag-taking member for movement in a direction parallel with the axis of said disc, first and second friction pad assemblies for engagement with said opposite faces of said disc, means on said drag-taking member slideably supporting said first friction pad, means interconnecting said caliper and said second friction pad, and actuating means carried by said caliper for applying said first friction pad assembly directly to one face of said disc said second friction pad assembly being applied to the opposite face of said disc by the reaction of said caliper, the invention wherein said stationary drag-taking member includes a pair of circumferentially spaced guiding members, each comprising an arm, and an extension continuous with said arm and extending over said peripheral edge of said disc, and said guiding members have oppositely facing parallel innermost faces, each innermost face being formed with at least three axially and radially spaced integral discrete co-planar surfaces upon which said caliper is slidably guided directly for movement in said direction parallel with said axis of said disc, two of said co-planar surfaces are located at portions which terminate at axially opposed ends of each guiding member, and a third of said co-planar surfaces is located at a position intermediate the opposed ends of each guiding member.
Claim 7
Dependent Claim
38 words
The invention as claimed in claim 4, wherein an end of each extension remote from said arm terminates at a position at least substantially in alignment with said face of said disc remote from said stationary drag-taking member.
Claim 8
Dependent Claim
43 words
The invention as claimed in claim 4, wherein said arms at least at their innermost ends lead into inwardly extending shoulders which form supports preventing movement of said caliper with respect to said stationary drag-taking member, at least in a radially inwards direction.
Claim 9
Dependent Claim
46 words
A disc brake as claimed in claim 4, wherein said arms at their innermost and outermost ends lead into inwardly and outwardly extending shoulders which form supports preventing movement of said caliper with respect to said stationary drag-taking member, at least in a radially inwards direction.
Claim 10
Dependent Claim
38 words
The invention as claimed in claim 4, wherein each arm is provided in its innermost face with a longitudinally extending groove in which is received one of a pair of circumferentially spaced adjustable tongues carried by said caliper.
Claim 11
Dependent Claim
46 words
The invention as claimed in claim 4, wherein each arm includes a lug having an opening aligned with an opening in a complementary lug in said caliper, and each of a pair of circumferentially spaced studs extend through aligned openings in a pair of complementary lugs.
Claim 12
Dependent Claim
42 words
The invention as claimed in claim 4 including coupling means co-operating with adjacent parts of said caliper and said stationary drag-taking member to limit movement of said caliper with respect to said stationary drag-taking member, at least in a radially outwards direction.
Claim 13
Dependent Claim
44 words
The invention as claimed in claim 10, wherein said coupling means comprises an adjustable tongue carried by the caliper and received in a longitudinally extending groove located at an intermediate point in the radial depth of said circumferentially innermost face of an adjacent arm.
Claim 14
Dependent Claim
51 words
The invention as claimed in claim 11 wherein said tongue forms part of a tab washer carried by said caliper and a tension spring acts between said tab washer and said stationary drag-taking member to urge said caliper into engagement with inwardly directed shoulders at the innermost ends of said arms.
Claim 15
Dependent Claim
42 words
The invention as claimed in claim 10, wherein said coupling means comprises a member which projects through an opening in an arm and which is received at its innermost end in a longitudinally extending groove in an adjacent face of said caliper.
Claim 16
Dependent Claim
41 words
The invention as claimed in claim 13, wherein each arm is formed with an opening through which a member projects, and each member is received at its innermost end in a longitudinally extending groove in an adjacent face of said caliper.
Claim 17
Dependent Claim
49 words
The invention as claimed in claim 13, wherein said member forms an anchorage for one end of a tension spring of which the other end is anchored to said caliper whereby said caliper is urged into engagement with at least inwardly directed shoulders at innermost ends of the arms.
Claim 18
Dependent Claim
33 words
The invention as claimed in claim 10, wherein said coupling means comprises a stud extending through aligned openings in complementary lugs in said caliper and in an arm of said stationary drag-taking member.
Claim 19
Dependent Claim
40 words
The invention as claimed in claim 16, wherein said stud is loaded by a compression spring which acts in a direction to urge said caliper into engagement with inwardly directed shoulders at least at the innermost ends of said arms.
Claim 20
Dependent Claim
36 words
The invention as claimed in claim 17, wherein said compression spring acts between an outer face of said lug on said arm and a free end of said stud which is adjacent to the said face.
References Cited (Backward Citations)
US3616876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |