US3621946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake shoe supporters
Assignee: Aisin Corp
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Filing: 1969-12-17
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Granted: 1971-11-23
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Expires: 1989-12-17
Abstract
Abstract Brake shoe supporting pins for use on a spot-type disk brake which are substantially J-shaped pins and are fixed to stationary members on opposite sides of the brake disk. The stationary members may be the housing of an operating cylinder on one side of the brake disk and yoke members extending to the other side of the brake disk.
Inventors
- 👤 Yoshinori Mori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:40
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/225; F16D55/226; F16D55/2262; F16D2055/0004; F16D2055/0016; F16D2055/0025; F16D2055/007
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
175 words
In a disk brake for a rotatable disk having friction surfaces thereon and including a housing for an operating cylinder on one side of the brake disk for operating a pair of brake shoes disposed on opposed sides of the brake disk, a pair of yoke members fixed to a stationary member of the vehicle and extending from one side of the brake disk to the opposite side, the pair of brake shoes being disposed between the pair of yoke members whereby torque created when the brake shoes are applied to the brake disk during braking action, is absorbed, the improvement comprising a pair of substantially J-shaped supporting pins, the longer legs thereof passing through openings provided in the brake shoes, said pins supporting and axially guiding the brake shoes during application of the brakes, said pins being symmetrically disposed with respect to the axis of the brake disk, the ends of the long and short legs of said pins being mounted and secured respectively to stationary members on opposite sides of the brake disk.
Claim 2
Dependent Claim
175 words
In a disk brake for a rotatable disk having friction surfaces thereon and including a housing for an operating cylinder on one side of the brake disk for operating a pair of brake shoes disposed on opposed sides of the brake disk, a pair of yoke members fixed to a stationary member of the vehicle and extending from one side of the brake disk to the opposite side, the pair of brake shoes being disposed between the pair of yoke members whereby torque created when the brake shoes are applied to the brake disk during braking action, is absorbed, the improvement comprising a pair of substantially J-shaped supporting pins, the longer legs thereof passing through openings provided in the brake shoes, said pins supporting and axially guiding the brake shoes during application of the brakes, said pins being symmetrically disposed with respect to the axis of the brake disk, the ends of the long and short legs of said pins being mounted and secured respectively to stationary members on opposite sides of the brake disk.
Claim 3
Dependent Claim
46 words
In a disk brake as claimed in claim 1 in which the yoke members are formed integrally with the housing for the operating cylinder, the improvement wherein the ends of the legs of the supporting pins are secured respectively to the housing and each yoke member.
Claim 4
Dependent Claim
30 words
In a disk brake as claimed in claim 1 the improvement wherein the openings in the backing plates of the brake shoes are slots elongated substantially in a horizontal direction.
Claim 5
Dependent Claim
17 words
In a disk brake as claimed in claim 1 the improvement wherein the supporting pins are resilient.
Claim 6
Dependent Claim
19 words
In a disk brake as claimed in claim 1 the improvement wherein the supporting pins have circular cross sections.
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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |