US3899049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination brake and vehicle assembly
Assignee: Individual
•
Filing: 1973-11-27
•
Granted: 1975-08-12
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Expires: 1993-11-27
Abstract
Abstract A disc brake construction adapted for use on front or rear wheels of motorcycles and the like. An annular disc having opposed bearing surfaces is supported for rotation within the wheel but on and coaxial with the axle of the wheel. Braking forces are applied through brake shoes that are oppositely aligned on opposite sides of these braking surfaces. The braking shoes are actuated by a hydraulic caliper that is supported by an annular drum coaxial with the axle. Devices are provided for absorbing reaction forces upon braking without transmitting these forces to the fork supporting the axle.
Inventors
- 👤 Thomas C Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:40
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/42; F16D65/46; B; B62; B62L; B62L1/00; B62L1/02; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/228; F16D65/02; F16D65/04; F16D65/092; F16D65/095; F16D65/097; F16D65/0973; F16D65/0979; F16D2055/0004; F16D2055/0037; F16D2055/005; F16D2055/0062; F16D2055/007; F16D2055/0075; F16D2055/0083; F16D2055/0091; F16D2125/00; F16D2125/02; F16D2125/06; F16D2125/18; F16D2125/58; F16D2125/587; F16D2127/00; F16D2127/02
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
185 words
A combination brake and vehicle assembly including a fork with legs interconnected at the free end by an axle comprising: a wheel including a hub having a center core defining an aperture receiving the axle and positioning the hub intermediate the legs of the fork; means intermediate said core and axle for rotatably supporting said hub relative to aid axle; said hub including tire support means; an anNular disc having bearing surfaces on opposite sides of said disc; means securing said disc to said hub for rotation therewith; a pair of brake shoes each having brake pads with each of said pads aligned with one of said bearing surfaces; calipers for holding each of said brake shoes arranged one on each side of said disc; caliper support means for commonly supporting said calipers extending at least partially over and coaxial with said core; bearing means disposed intermediate the overlapping portions of said core and caliper support means for supporting and permitting relative rotational movement of said core and caliper support means; and means maintaining said caliper support means in fixed rotational relation to said axle.
Claim 2
Dependent Claim
185 words
A combination brake and vehicle assembly including a fork with legs interconnected at the free end by an axle comprising: a wheel including a hub having a center core defining an aperture receiving the axle and positioning the hub intermediate the legs of the fork; means intermediate said core and axle for rotatably supporting said hub relative to aid axle; said hub including tire support means; an anNular disc having bearing surfaces on opposite sides of said disc; means securing said disc to said hub for rotation therewith; a pair of brake shoes each having brake pads with each of said pads aligned with one of said bearing surfaces; calipers for holding each of said brake shoes arranged one on each side of said disc; caliper support means for commonly supporting said calipers extending at least partially over and coaxial with said core; bearing means disposed intermediate the overlapping portions of said core and caliper support means for supporting and permitting relative rotational movement of said core and caliper support means; and means maintaining said caliper support means in fixed rotational relation to said axle.
Claim 3
Dependent Claim
34 words
A disc brake and wheel assembly as set forth in claim 1 comprising means permitting limited sliding movement of said caliper support means relative to said core in a direction parallel to said axle.
Claim 4
Dependent Claim
23 words
A disc brake and wheel assembly as set forth in claim 2 comprising biasing means for urging said calipers to an inoperative position.
Claim 5
Dependent Claim
26 words
A disc brake and wheel assembly as set forth in claim 1 wherein said caliper support means includes an annular support means coaxial with said axle.
Claim 6
Dependent Claim
43 words
A disc brake and wheel assembly as set forth in claim 4 wherein said annular support means comprises a pair of annular wall members with each wall member supporting one of said calipers in aligned relation and means securing the wall members together.
Claim 7
Dependent Claim
29 words
A disc brake assembly as set forth in claim 1 wherein said tire support means includes a crown, said disc being secured at its outer circumference to said crown.
Claim 8
Dependent Claim
32 words
A disc brake and wheel assembly as set forth in claim 6 wherein said core is coaxial with said axle and said hub includes a face wall interconnecting said core and crown.
Claim 9
Dependent Claim
47 words
A disc brake and wheel assembly as set forth in claim 7 including a face plate fixed relative to said axle, said face plate having an outer perimeter adjacent said crown, said face wall and face plate defining a space for said brake shoe means and calipers.
Claim 10
Dependent Claim
40 words
A disc brake and wheel assembly as set forth in claim 1 including means for lateral movement of said common caliper support means in response to application of unequal forces on opposite surfaces of said disc by said brake shoes.
Claim 11
Dependent Claim
23 words
A disc brake and wheel assembly as set forth in claim 9 wherein said calipers include a hydraulically and a non-hydraulically actuated caliper.
Claim 12
Dependent Claim
47 words
A disc brake and wheel assembly as set forth in claim 1 including a pair of pistons for actuating each of said brake shoes and a plurality of guide pins secured at one end to said brake shoes and extending into said calipers at the other end.
Claim 13
Dependent Claim
34 words
A disc brake and wheel assembly as set forth in claim 1 wherein said means maintaining comprises interlocking facing splined portions of said caliper support means and a facing plate secured to said axle.
Claim 14
Dependent Claim
67 words
A disc brake and wheel assembly as set forth in claim 1 wherein said caliper support means if formed in at least two separable parts, with the parts extending radially beyond the inner periphery of the disc and with a portion of one part on one side and a portion of the inner part on the other side of said disc, and means locking said parts together.
Claim 15
Dependent Claim
34 words
The disc brake and wheel assembly as set forth in claim 1 wherein said hub defines at least in part an enclosing space, said disc and caliper support means being supported in said space.
References Cited (Backward Citations)
US3602339A
Cited
US3757883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |