US3708040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk brake with servo action
Assignee: ZF Active Safety US Inc
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Filing: 1970-08-19
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Granted: 1973-01-02
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Expires: 1990-08-19
Abstract
Abstract Two embodiments of disk brake assemblies embodying simplified actuators that include tilting pins. The pins are tilted to cause axial movement of the brake pads into frictional engagement with the associated brake rotor. The direction of tilting of the pins is such that a self-energizing force is exerted upon the brake.
Inventors
- 👤 H Hollnagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:59
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/2255; F16D2127/00; F16D2127/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
256 words
A disk brake assembly for braking the rotation of an associated rotor or the like comprising a brake pad having a frictional lining juxtaposed to a braking surface of the associated rotor, a supporting member held against rotation about the axis of rotation of the associated rotor and defining an opening, a single supporting pin fixed relative to said brake pad and extending therefrom in a direction parallel to the axis of rotation of the associated rotor, said supporting pin being journalled and axially slidable in said opening in said supporting member for supporting said brake pad for pivotal movement about a pivot axis defined by said supporting pin and said opening and axial movement relative to said supporting member, a tilting pin interposed between said brake pad and said supporting member, said tilting pin being associated with said brake pad and with said supporting member for effecting axial movement of said brake pad relative to said supporting member when said tilting pin is moved from a first position to a second position for moving said brake pad frictional lining into frictional engagement with the rotor braking surface, said tilting pin being movable between its first and second positions in response to pivotal movement of said brake pad about said pivot axis relative to said supporting member, and actuating means for pivoting said brake pad about said pivot axis and said supporting pin relative to said supporting member for moving said tilting pin from its first position to its second position to actuate said brake assembly.
Claim 2
Dependent Claim
256 words
A disk brake assembly for braking the rotation of an associated rotor or the like comprising a brake pad having a frictional lining juxtaposed to a braking surface of the associated rotor, a supporting member held against rotation about the axis of rotation of the associated rotor and defining an opening, a single supporting pin fixed relative to said brake pad and extending therefrom in a direction parallel to the axis of rotation of the associated rotor, said supporting pin being journalled and axially slidable in said opening in said supporting member for supporting said brake pad for pivotal movement about a pivot axis defined by said supporting pin and said opening and axial movement relative to said supporting member, a tilting pin interposed between said brake pad and said supporting member, said tilting pin being associated with said brake pad and with said supporting member for effecting axial movement of said brake pad relative to said supporting member when said tilting pin is moved from a first position to a second position for moving said brake pad frictional lining into frictional engagement with the rotor braking surface, said tilting pin being movable between its first and second positions in response to pivotal movement of said brake pad about said pivot axis relative to said supporting member, and actuating means for pivoting said brake pad about said pivot axis and said supporting pin relative to said supporting member for moving said tilting pin from its first position to its second position to actuate said brake assembly.
Claim 3
Dependent Claim
31 words
A disk brake assembly as set forth in claim 1 further including means for adjusting the position of the tilting pin for compensating for wear of the brake pad frictional lining.
Claim 4
Dependent Claim
50 words
A disk brake assembly as set forth in claim 1 wherein the tilting pin defines a shoulder in substantially full face engagement with the brake pad when said tilting pin is in its first position and angularly disposed with respect thereto when said tilting pin is in its second position.
Claim 5
Dependent Claim
54 words
A disk brake assembly as set forth in claim 1 wherein the tilting pin is substantially perpendicular to the rotor braking surface when in its first position and tilts toward the direction of rotation of the rotor braking surface when in its second position for exerting a self-energizing force upon the associated brake pad.
Claim 6
Dependent Claim
79 words
A disk brake assembly as set forth in claim 1 wherein the supporting member comprises a caliper, and further including a second brake pad fixed against axial movement relative to said caliper, said caliper being supported for movement in a direction having an axial component relative to the associated disk brake rotor upon actuation of the first mentioned brake pad for bringing said second brake pad into frictional engagement with an associated braking surface of the disk brake rotor.
Claim 7
Dependent Claim
54 words
A disk brake assembly as set forth in claim 5 wherein the tilting pin is substantially perpendicular to the rotor braking surface when in its first position and tilts toward the direction of rotation of the rotor braking surface when in its second position for exerting a self-energizing force upon the associated brake pad.
Claim 8
Dependent Claim
174 words
A disk brake assembly for braking the rotation of an associated rotor or the like comprising a brake pad having a frictional lining juxtaposed to a braking surface of the associated rotor, a supporting member held against rotation about the axis of rotation of the associated rotor and defining an opening, a pin affixed to said brake pad and extending substantially perpendicularly to the axis of rotation of the associated rotor, said pin being journalled in and axially slidable relative to said opening in said supporting member for supporting said brake pad for movement axially relative to the rotor and in a direction parallel to the direction of rotation of the rotor braking surface in response to pivotal movement of said brake pad about a pivot axis defined by said pin and said opening, and means for transmitting pivotal movement of said brake pad about said pivot axis into axial movement of said brake pad relative to the rotor braking surface for bringing the frictional lining into frictional engagement with the rotor braking surface.
Claim 9
Dependent Claim
174 words
A disk brake assembly for braking the rotation of an associated rotor or the like comprising a brake pad having a frictional lining juxtaposed to a braking surface of the associated rotor, a supporting member held against rotation about the axis of rotation of the associated rotor and defining an opening, a pin affixed to said brake pad and extending substantially perpendicularly to the axis of rotation of the associated rotor, said pin being journalled in and axially slidable relative to said opening in said supporting member for supporting said brake pad for movement axially relative to the rotor and in a direction parallel to the direction of rotation of the rotor braking surface in response to pivotal movement of said brake pad about a pivot axis defined by said pin and said opening, and means for transmitting pivotal movement of said brake pad about said pivot axis into axial movement of said brake pad relative to the rotor braking surface for bringing the frictional lining into frictional engagement with the rotor braking surface.
Claim 10
Dependent Claim
119 words
A disk brake assembly as set forth in claim 7 wherein the supporting member comprises a caliper supported for sliding movement relative to the associated rotor and further including a second brake pad having a frictional lining juxtaposed to an opposing braking surface of the associated rotor, said second brake pad being affixed for axial movement with said caliper, the means for translating pivotal movement of the first brake pad into axial movement of the first brake pad being effective to cause a reactive force upon said caliper for sliding saId caliper relative to the associated rotor upon pivotal movement of said brake pad for bringing said second brake pad into frictional engagement with the respective rotor braking surface.
Claim 11
Dependent Claim
50 words
A disk brake assembly as set forth in claim 8 wherein the caliper is further supported for pivotal movement about an axis disposed perpendicularly to the axis of rotation of the associated rotor for bringing the frictional linings into full face to face engagement with the associated rotor braking surfaces.
Claim 12
Dependent Claim
75 words
A disk brake assembly as set forth in claim 7 wherein the means for transmitting pivotal movement of the brake pad into axial movement of the brake pad comprises a tilting pin having one end in engagement with the brake pad and the other end in engagement with the supporting member, pivotal movement being effective to move said tilting pin from a first position to a second position relative to the associated rotor braking surface.
Claim 13
Dependent Claim
37 words
A disk brake assembly as set forth in claim 10 further including means for adjusting the position of one end of the tilting pin relative to the supporting member for compensating for wear of the frictional lining.
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) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |