US3628636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spot-type disc brake
Assignee: TDK Micronas GmbH
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Filing: 1970-02-03
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Granted: 1971-12-21
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Expires: 1990-02-03
Abstract
Abstract This spot-type disc brake for vehicles has a fixed carrier extended over a brake disc and brake shoes slidably mounted on the carrier. A slidable frame having sides which engage slots in the carrier transmits the actuating force from an actuating cylinder and brake shoe on one side of the disc to the brake shoe on the other side of the disc.
Inventors
- 👤 Hans Albert Beller
- 👤 Jochen Burgdorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:15
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; F16D65/0974; F16D65/0977; F16D2055/0004; F16D2055/0016; F16D2055/0025; F16D2055/0029; F16D2055/0041; F16D2055/007; F16D2200/00; F16D2200/0004; F16D2200/0008; F16D2200/0017; F16D2200/0034; F16D2200/0056
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
249 words
A spot-type disc brake comprising: a rotatable brake disc; a nonrotating brake carrier overlapping the edge of the disc; brake shoes on either side of the disc slidably mounted on the carrier; an actuator on one side of the disc acting directly on one brake shoe; and a floatingly arranged frame protruding over the disc connected to the actuating device to transmit the operating force of the actuating device to the other brake shoe located on the opposite side of the disc; the brake carrier containing a pair of grooves on opposite sides thereof perpendicular to the disc for guiding the frame, the width of the grooves being greater than the thickness of the part of the frame guided in the grooves; the frame containing a recess in which the actuator is contained, the frame being supported on one side of the disc by the grooves and on the other side of the disc by the other brake shoe; the actuator containing recesses on opposite sides thereof perpendicular to the disc to engage the recess of the frame and an annular groove therein parallel to the disc; and a spring having a U-shaped central portion engaging the annular groove and a pair of arms extending at substantially 90* from the central portion toward the disc, each of the arms of the spring being disposed in one of the pair of grooves of the carrier to press the frame against one side of the pair of grooves of the carrier.
Claim 2
Dependent Claim
249 words
A spot-type disc brake comprising: a rotatable brake disc; a nonrotating brake carrier overlapping the edge of the disc; brake shoes on either side of the disc slidably mounted on the carrier; an actuator on one side of the disc acting directly on one brake shoe; and a floatingly arranged frame protruding over the disc connected to the actuating device to transmit the operating force of the actuating device to the other brake shoe located on the opposite side of the disc; the brake carrier containing a pair of grooves on opposite sides thereof perpendicular to the disc for guiding the frame, the width of the grooves being greater than the thickness of the part of the frame guided in the grooves; the frame containing a recess in which the actuator is contained, the frame being supported on one side of the disc by the grooves and on the other side of the disc by the other brake shoe; the actuator containing recesses on opposite sides thereof perpendicular to the disc to engage the recess of the frame and an annular groove therein parallel to the disc; and a spring having a U-shaped central portion engaging the annular groove and a pair of arms extending at substantially 90* from the central portion toward the disc, each of the arms of the spring being disposed in one of the pair of grooves of the carrier to press the frame against one side of the pair of grooves of the carrier.
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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |