US3768604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disc brake and friction member structure
Assignee: Wagner Electric Corp
•
Filing: 1970-10-20
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Granted: 1973-10-30
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Expires: 1990-10-20
Abstract
Abstract A spot disc brake having support means defining a fixed closed loop member substantially about a chordal portion of a rotatable disc, and a cylinder portion slidably anchored on said closed loop memer adjacent one side of said disc and including a caliper portion extending over said disc chordal portion and slidably anchored on said closed loop member adjacent to the other side of said disc for moving a pair of opposed friction members into frictional engagement with said one and other sides of said disc at the chordal portion thereof. At least one of the friction members is provided with anchoring extensions embracing the caliper for transmitting braking torque thereto, and each anchoring extension having a supporting portion for engagement with the loop member to oppose deflection thereof.
Inventors
- 👤 E Falk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:19
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/226; F16D55/2262; F16D65/00; F16D65/02; F16D65/04; F16D65/092; F16D65/095; F16D65/097; F16D65/0973; F16D65/0979; F16D2055/0004; F16D2055/0008; F16D2055/0016; F16D2055/0025; F16D2055/0045; F16D2055/007
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
449 words
A friction device for use with a rotatable disc comprising support means mounted adjacent to one of the opposed sides of said disc including a member defining a closed loop about substantially a chordal sector of said disc, a pair of friction members for frictional engagement with said opposed disc sides, respectively, caliper means axially movable on said support means and straddling at least a portion of the disc outer periphery including a fluid motor portion and a reaction portion respectively adjacent to said disc opposed sides and engaged with said friction members to effect axial movement thereof into frictional engagement with said disc opposed sides upon actuation of said fluid motor portion, respectively, a pair of opposed anchor means on one of said fluid motor portion and reaction portions extending in planes substantially normal to said disc sides plane, respectively, said friction member adapted to be engaged by said fluid motor portion of the caliper including a backing plate having a central portion interposed between opposed end portions, friction material supported on said backing plate adjacent to said central portion and frictionally engageable with one of said one and other opposed disc sides, a pair of extension means on said backing plate integrally connected with said end portions and embracing said caliper means, leading and trailing anchor surfaces on said extension means in facing relation and extending in planes substantially normal to that of said backing plate, said leading and trailing anchor surfaces being engaged in brake torque transfer relation with said anchor means, respectively, wherein said trailing anchor surface is urged into anchoring engagement with one of said anchor means to transfer thereto brake torque in the direction of disc rotation, and a pair of supporting surfaces on said end portions spaced inwardly in radial direction away from said leading and trailing anchor surfaces, said pair of supporting surfaces being located in position substantially normal to the planes of said backing plate and substantially normal to the planes of said leading and trailing anchor surfaces and in sliding and abutting engagement with said loop member, respectively, one of said supporting surfaces being urged into abutting engagemEnt with said loop member to establish a reaction force supporting one of said extension means against deflection in response to the braking torque acting on said trailing anchor surface, and another pair of anchor means on said one of said fluid motor portion and reaction portion, each of said another pair of anchor means being in position to face approximately 180* away from each other to directly engage one of said loop member and supporting means to transfer braking torque from said another pair of anchor means to said support means.
Claim 2
Dependent Claim
449 words
A friction device for use with a rotatable disc comprising support means mounted adjacent to one of the opposed sides of said disc including a member defining a closed loop about substantially a chordal sector of said disc, a pair of friction members for frictional engagement with said opposed disc sides, respectively, caliper means axially movable on said support means and straddling at least a portion of the disc outer periphery including a fluid motor portion and a reaction portion respectively adjacent to said disc opposed sides and engaged with said friction members to effect axial movement thereof into frictional engagement with said disc opposed sides upon actuation of said fluid motor portion, respectively, a pair of opposed anchor means on one of said fluid motor portion and reaction portions extending in planes substantially normal to said disc sides plane, respectively, said friction member adapted to be engaged by said fluid motor portion of the caliper including a backing plate having a central portion interposed between opposed end portions, friction material supported on said backing plate adjacent to said central portion and frictionally engageable with one of said one and other opposed disc sides, a pair of extension means on said backing plate integrally connected with said end portions and embracing said caliper means, leading and trailing anchor surfaces on said extension means in facing relation and extending in planes substantially normal to that of said backing plate, said leading and trailing anchor surfaces being engaged in brake torque transfer relation with said anchor means, respectively, wherein said trailing anchor surface is urged into anchoring engagement with one of said anchor means to transfer thereto brake torque in the direction of disc rotation, and a pair of supporting surfaces on said end portions spaced inwardly in radial direction away from said leading and trailing anchor surfaces, said pair of supporting surfaces being located in position substantially normal to the planes of said backing plate and substantially normal to the planes of said leading and trailing anchor surfaces and in sliding and abutting engagement with said loop member, respectively, one of said supporting surfaces being urged into abutting engagemEnt with said loop member to establish a reaction force supporting one of said extension means against deflection in response to the braking torque acting on said trailing anchor surface, and another pair of anchor means on said one of said fluid motor portion and reaction portion, each of said another pair of anchor means being in position to face approximately 180* away from each other to directly engage one of said loop member and supporting means to transfer braking torque from said another pair of anchor means to said support means.
Claim 3
Dependent Claim
57 words
A rotating disc friction brake assembly according to claim 1 comprising at least one pair of spaced anchor means on said caliper member extending generally axially in planes substantially normal to the plane of said disc, said spaced pair of anchor surfaces on said extensions of said at least one friction member embracing said anchor means, respectively.
Claim 4
Dependent Claim
308 words
A rotating disc friction brake assembly which comprises: a. a caliper member straddling at least a portion of the disc outer periphery having an actuating motor portion positioned adjacent one side of the disc and a reaction portion positioned adjacent the second side of the disc; b. a pair of friction members, each comprising a backing plate with friction means thereon; c. each of said friction members being positioned between one side of the disc and one portion of the caliper member; d. a fixed support for said assembly mounted adjacent one side of the disc to define a closed loop about a chordal sector of said disc; e. said one friction member positioned adjacent the actuating motor portion of the caliper having a first spaced pair of torque transmitting surfaces which respectively face each other and (to) transmit a portion of the braking torque to one portion of said caliper; f. said one friction member having a second spaced pair of torque transmitting surfaces which respectively face approximately 180* away from each other and (to) transmit another portion of the braking torque to said fixed support; g. the first pair of torque transmitting surfaces being formed by spaced extensions on said backing plate which form a spaced pair of anchor surfaces for respectively transmitting braking torque to a portion of said caliper; and h. said one friction member including another pair of surfaces spaced inwardly in radial direction away from said first pair of torque transmitting surfaces each of said another pair of torque transmitting surfaces being located in position substantially normal to said first pair of torque transmitting surfaces to bear (being) in a supporting engagement with said fixed support respectively to oppose deflection of said extensions in response to braking torque acting on said respective extensions through said first spaced pair of torque transmitting surfaces.
Claim 5
Dependent Claim
308 words
A rotating disc friction brake assembly which comprises: a. a caliper member straddling at least a portion of the disc outer periphery having an actuating motor portion positioned adjacent one side of the disc and a reaction portion positioned adjacent the second side of the disc; b. a pair of friction members, each comprising a backing plate with friction means thereon; c. each of said friction members being positioned between one side of the disc and one portion of the caliper member; d. a fixed support for said assembly mounted adjacent one side of the disc to define a closed loop about a chordal sector of said disc; e. said one friction member positioned adjacent the actuating motor portion of the caliper having a first spaced pair of torque transmitting surfaces which respectively face each other and (to) transmit a portion of the braking torque to one portion of said caliper; f. said one friction member having a second spaced pair of torque transmitting surfaces which respectively face approximately 180* away from each other and (to) transmit another portion of the braking torque to said fixed support; g. the first pair of torque transmitting surfaces being formed by spaced extensions on said backing plate which form a spaced pair of anchor surfaces for respectively transmitting braking torque to a portion of said caliper; and h. said one friction member including another pair of surfaces spaced inwardly in radial direction away from said first pair of torque transmitting surfaces each of said another pair of torque transmitting surfaces being located in position substantially normal to said first pair of torque transmitting surfaces to bear (being) in a supporting engagement with said fixed support respectively to oppose deflection of said extensions in response to braking torque acting on said respective extensions through said first spaced pair of torque transmitting surfaces.
Claim 6
Dependent Claim
331 words
A rotating disc friction brake assembly which comprises: a. a caliper member straddling at least a portion of the outer disc periphery having an actuating motor portion positioned adjacent one side of the disc and a reaction portion positioned adjacent the second side of the disc; b. a pair of friction members, each comprising a backing plate with friction means thereon; c. each of said friction members being positioned between one side of the disc and one portion of the caliper member; d. a fixed support for said assembly; e. each of said friction members having a first spaced pair of torque transmitting surfaces which respectively transmit a portion of the braking torque to one portion of said caliper; f. the first pair of torque transmitting surfaces on at least one of said friction members being formed by spaced extensions on said backing plate which form a spaced pair of opposed anchor surfaces that face each other for respectively transmitting braking torque to a portion of said caliper; and g. a second pair of spaced surfaces on said at least one friction member, each of said second surfaceS being formed on one of said extensions in a position spaced inwardly in radial direction away from said first pair of surfaces in a direction toward said fixed support, said second pair of spaced surfaces being located in position substantially normal to said first pair of torque transmitting surfaces to bear in a supporting engagement with another portion of said assembly located along a chordal sector of said disc to respectively oppose the horizontal component of force acting on one of said extensions which tends to deflect the extension in direction opposite to the direction of disc rotation in response to transmission of braking torque. h. a third spaced pair of surfaces on said at least one friction member in position to face approximately 180* away from each other to engage said fixed support and transmit a portion of the braking force thereto.
Claim 7
Dependent Claim
331 words
A rotating disc friction brake assembly which comprises: a. a caliper member straddling at least a portion of the outer disc periphery having an actuating motor portion positioned adjacent one side of the disc and a reaction portion positioned adjacent the second side of the disc; b. a pair of friction members, each comprising a backing plate with friction means thereon; c. each of said friction members being positioned between one side of the disc and one portion of the caliper member; d. a fixed support for said assembly; e. each of said friction members having a first spaced pair of torque transmitting surfaces which respectively transmit a portion of the braking torque to one portion of said caliper; f. the first pair of torque transmitting surfaces on at least one of said friction members being formed by spaced extensions on said backing plate which form a spaced pair of opposed anchor surfaces that face each other for respectively transmitting braking torque to a portion of said caliper; and g. a second pair of spaced surfaces on said at least one friction member, each of said second surfaceS being formed on one of said extensions in a position spaced inwardly in radial direction away from said first pair of surfaces in a direction toward said fixed support, said second pair of spaced surfaces being located in position substantially normal to said first pair of torque transmitting surfaces to bear in a supporting engagement with another portion of said assembly located along a chordal sector of said disc to respectively oppose the horizontal component of force acting on one of said extensions which tends to deflect the extension in direction opposite to the direction of disc rotation in response to transmission of braking torque. h. a third spaced pair of surfaces on said at least one friction member in position to face approximately 180* away from each other to engage said fixed support and transmit a portion of the braking force thereto.
Claim 8
Dependent Claim
332 words
A rotating disc friction brake assembly which comprises: a. a caliper member having an actuating motor portion positioned adjacent one side of the disc and a reaction portion positioned adjacent the second side of the disc; b. a pair of friction members, each comprising a backing plate with friction means thereon; c. each of said friction members being positioned between one side of the disc and one portion of the caliper member; d. a fixed support for said assembly mounted adjacent one side of the disc to define a closed loop about a chordal sector of said disc; e. each of said friction members having a first spaced pair of torque transmitting surfaces which respectively face each other to transmit a portion of the braking torque to one portion of said caliper; f. each of said friction members having a second spaced pair of torque transmitting surfaces which respectively face approximately 180* away from each other to transmit another portion of the braking torque to said fixed support; g. the said first pair of torque transmitting surfaces on at least one of said friction members being formed by spaced extensions on said backing plate which form a spaced pair of opposed anchor surfaces for respectively transmitting braking torque to a portion of said caliper; h. a pair of opposed anchor means on one of said motor portions and reaction portions extending in planes substantially normal to said disc sides; i. said at least one friction member having another pair of surfaces being in a supporting engagement with said fixed support respectively to oppose deflection of said extensions in response to braking torque acting on said respective extensions; j. said pair of anchor surfaces of said extensions of said at least one friction member embracing said anchor means; and k. another pair of anchor means on one of said fluid motor portions and reaction portions of the caliper for transmitting the braking torque from said first named opposed anchors to said fixed support.
Claim 9
Dependent Claim
332 words
A rotating disc friction brake assembly which comprises: a. a caliper member having an actuating motor portion positioned adjacent one side of the disc and a reaction portion positioned adjacent the second side of the disc; b. a pair of friction members, each comprising a backing plate with friction means thereon; c. each of said friction members being positioned between one side of the disc and one portion of the caliper member; d. a fixed support for said assembly mounted adjacent one side of the disc to define a closed loop about a chordal sector of said disc; e. each of said friction members having a first spaced pair of torque transmitting surfaces which respectively face each other to transmit a portion of the braking torque to one portion of said caliper; f. each of said friction members having a second spaced pair of torque transmitting surfaces which respectively face approximately 180* away from each other to transmit another portion of the braking torque to said fixed support; g. the said first pair of torque transmitting surfaces on at least one of said friction members being formed by spaced extensions on said backing plate which form a spaced pair of opposed anchor surfaces for respectively transmitting braking torque to a portion of said caliper; h. a pair of opposed anchor means on one of said motor portions and reaction portions extending in planes substantially normal to said disc sides; i. said at least one friction member having another pair of surfaces being in a supporting engagement with said fixed support respectively to oppose deflection of said extensions in response to braking torque acting on said respective extensions; j. said pair of anchor surfaces of said extensions of said at least one friction member embracing said anchor means; and k. another pair of anchor means on one of said fluid motor portions and reaction portions of the caliper for transmitting the braking torque from said first named opposed anchors to said fixed support.
Claim 10
Dependent Claim
322 words
A rotating disc friction brake assembly which comprises: a. a caliper member straddling at least a portion of the outer disc periphery having an actuating motor portion positioned adjacent one side of the disc and a reaction portion positioned adjacent the second side of the disc; b. a pair of friction members, each comprising a backing plate with friction means thereon; c. each of said friction members being positioned between one side of the disc and one portion of the caliper member. d. a fixed support for said assembly; e. each of said friction members having a first spaced pair of torque transmitting surfaces which respectively face each other and (to) transmit a portion of the braking torque to one portion of said caliper; f. each of said friction members having a second spaced pair of torque transmitting surfaces which respectively face approximately 180* away from each other and (to) transmit another portion of the braking torque to another portion of the assembly; g. the first pair of torque transmitting surfaces on at least one of said friction members being formed by spaced extensions on said backing plate which form a spaced pair of opposed anchor surfaces for respectively transmitting braking torque to (a) said one portion of said caliper; and h. said at least one friction member having another spaced pair of surfaces spaced inwardly in radial direction away from said first pair of torque transmitting surfaces, each of said another pair of torque transmitting surfaces being located in position substantially normal to said first pair of torque transmitting surfaces to bear in a supporting engagement with another portion of said assembly respectively to oppose the horizontal component of force acting on one of said extensions in the plane of the extention which tends to rotate and deflect the extension relative to the backing member in direction opposite to the direction of disc rotation in response to transmission of braking torque.
Claim 11
Dependent Claim
322 words
A rotating disc friction brake assembly which comprises: a. a caliper member straddling at least a portion of the outer disc periphery having an actuating motor portion positioned adjacent one side of the disc and a reaction portion positioned adjacent the second side of the disc; b. a pair of friction members, each comprising a backing plate with friction means thereon; c. each of said friction members being positioned between one side of the disc and one portion of the caliper member. d. a fixed support for said assembly; e. each of said friction members having a first spaced pair of torque transmitting surfaces which respectively face each other and (to) transmit a portion of the braking torque to one portion of said caliper; f. each of said friction members having a second spaced pair of torque transmitting surfaces which respectively face approximately 180* away from each other and (to) transmit another portion of the braking torque to another portion of the assembly; g. the first pair of torque transmitting surfaces on at least one of said friction members being formed by spaced extensions on said backing plate which form a spaced pair of opposed anchor surfaces for respectively transmitting braking torque to (a) said one portion of said caliper; and h. said at least one friction member having another spaced pair of surfaces spaced inwardly in radial direction away from said first pair of torque transmitting surfaces, each of said another pair of torque transmitting surfaces being located in position substantially normal to said first pair of torque transmitting surfaces to bear in a supporting engagement with another portion of said assembly respectively to oppose the horizontal component of force acting on one of said extensions in the plane of the extention which tends to rotate and deflect the extension relative to the backing member in direction opposite to the direction of disc rotation in response to transmission of braking torque.
Claim 12
Dependent Claim
64 words
A rotating disc friction brake assembly according to claim 6 wherein said the second pair of torque transmitting surfaces on said one friction member are in spaced relationship to said extensions and in position facing toward said another pair of surfaces to bear against said another portion of the assembly to oppose a vertical component of the braking torque acting on said friction member.
Claim 13
Dependent Claim
53 words
A rotating disc friction brake assembly according to claim 6 wherein the first pair of anchor surfaces comprise a leading and trailing anchor surface positioned substantially normal to the plane of said backing member, said trailing anchor surface being adapted to transmit braking torque to said caliper in the direction of disc rotation.
Claim 14
Dependent Claim
86 words
A rotating disc friction brake assembly according to claim 6 wherein said another pair of surfaces are generally coplanar and substantially normal to the planes of said backing plate and said leading and trailing anchor surfaces, respectively, one of said another surfaces being abuttingly engaged with said assembly other portion to oppose the horizontal component of force acting to deflect one of said extensions substantially in the direction of the plane of said backing plate in response to the braking torque on said trailing anchor surface.
Claim 15
Dependent Claim
230 words
A rotating disc brake assembly according to claim 6 wherein the backing plates are generally planar plates having a central portion interposed between opposed end portions, and wherein the friction means is supported on the backing plate adjacent to said central portion thereof for frictional engagement with the disc of said assembly and wherein the pair of spaced extensions are integrally connected with said end portions for embracing the caliper of said assembly including leading and trailing anchor surfaces in opposed facing relation and extending in planes substantially normal to that of said backing plate, said trailing anchor surface being adapted to transmit to said caliper in the direction of disc rotation braking torque of frictional engagement between said friction material and disc, and wherein said another pair of surfaces comprise a pair of substantially coplanar supporting surfaces on said end portions and substantially normal to the planes of said backing plate and said leading and trailing anchor surfaces for supporting and guiding engagement with said assembly other portion, one of said another pair of surfaces being abuttingly engaged with said assembly other portion and adapted to establish a reaction force in opposition to said horizontal component acting on said one extension to support said one of said extensions against deflection substantially in the plane of said backing plate in response to the braking torque on said trailing anchor surface.
Claim 16
Dependent Claim
250 words
A rotating disc friction brake assembly which comprises: a. a caliper member having an actuating motor portion positioned adjacent one side of the disc and a reaction portion positioned adjacent the second side of the disc; b. a pair of friction members each comprising a backing plate with fRiction means thereon; c. each of said friction members being positioned between one side of the disc and one portion of the caliper member; d. a fixed support for said assembly mounted adjacent one side of the disc to define a closed loop about a chordal sector of said disc; e. each of said friction members having a first spaced pair of torque transmitting surfaces which respectively face each other to transmit a portion of the braking torque to one portion of said caliper; f. each of said friction members having a second spaced pair of torque transmitting surfaces which respectively face approximately 180* away from each other to transmit another portion of the braking torque to said fixed support; g. the first pair of torque transmitting surfaces on at least one of said friction members being formed by spaced extensions on said backing plate which form a spaced pair of anchor surfaces for respectively transmitting braking torque to a portion of said caliper; and h. said one friction member including another pair of surfaces each being in a supporting engagement with said fixed support respectively to oppose deflection of said extensions in response to braking torque acting on said respective extensions.
Claim 17
Dependent Claim
250 words
A rotating disc friction brake assembly which comprises: a. a caliper member having an actuating motor portion positioned adjacent one side of the disc and a reaction portion positioned adjacent the second side of the disc; b. a pair of friction members each comprising a backing plate with fRiction means thereon; c. each of said friction members being positioned between one side of the disc and one portion of the caliper member; d. a fixed support for said assembly mounted adjacent one side of the disc to define a closed loop about a chordal sector of said disc; e. each of said friction members having a first spaced pair of torque transmitting surfaces which respectively face each other to transmit a portion of the braking torque to one portion of said caliper; f. each of said friction members having a second spaced pair of torque transmitting surfaces which respectively face approximately 180* away from each other to transmit another portion of the braking torque to said fixed support; g. the first pair of torque transmitting surfaces on at least one of said friction members being formed by spaced extensions on said backing plate which form a spaced pair of anchor surfaces for respectively transmitting braking torque to a portion of said caliper; and h. said one friction member including another pair of surfaces each being in a supporting engagement with said fixed support respectively to oppose deflection of said extensions in response to braking torque acting on said respective extensions.
Claim 18
Dependent Claim
63 words
A rotating disc friction brake assembly according to claim 11 wherein said pair of anchor surfaces include a leading and trailing anchor surface substantially normal to the plane of said disc sides and embracing said portion of the caliper, respectively, said trailing surface being urged into anchoring engagement with said caliper portion to transmit thereto braking torque in the direction of disc rotation.
Claim 19
Dependent Claim
34 words
A rotating disc friction brake assembly according to claim 11 wherein said another pair of surfaces are positioned on said spaced extensions respectively and are in an abutting engagement with said fixed support respectively.
Claim 20
Dependent Claim
88 words
A rotating disc friction brake assembly according to claim 11 wherein said another pair of surfaces are generally coplanar and substantially normal to the planes of said leading and trailing anchor surfaces and said disc side planes, respectively, one of said another surfaces being abuttingly engaged with a portion of said fixed support adjacent thereto to support one of said extension means against deflection substantially in the direction of said disc side planes in response to the braking torque transmitted by said trailing surface to said caliper means.
Claim 21
Dependent Claim
37 words
A rotating disc friction brake assembly according to claim 11 wherein said anchor surfaces are opposed and positioned substantially normal to the plane of said backing plate and in anchoring engagement with said portion of the caliper.
Claim 22
Dependent Claim
73 words
A rotating disc friction brake assembly according to claim 15 wherein said another pair of surfaces are coplanar surfaces substantially normal to the planes of said first pair of anchor surfaces and said disc sides and engaged with said fixed support and at least a portion of said coplanar surfaces being spaced radially outwardly of said anchor surfaces to oppose deflection of said extension means in the direction of the disc side plane.
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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |