Patent US3552676A successfully refreshed from Google Patents.
US3552676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency locking rotractor for safety belt
Assignee: Individual
•
Filing: 1969-03-03
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Granted: 1971-01-05
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Expires: 1989-03-03
Abstract
Abstract An automatic locking mechanism for the strap-winding pin is operated by a flywheel controlled by a pendulum-operated brake to lock the pin against rotation when the strap is suddenly pulled on. A balanced mass makes the mechanism insensitive to inclinations of the vehicle.
Inventors
- 👤 Georges Robert Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:39
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/34; B60R22/36; B60R22/405; B60R2022/3427
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
133 words
An emergency locking device for a safety belt in a vehicle, comprising a frame, a rotatable winding pin for said belt, locking means for locking said winding pin to said frame to prevent rotation of the former, a rotatably mounted flywheel for actuating said locking means, braking means operated by the change in velocity of said vehicle in any one of at least three directions for braking said flywheel, said flywheel being made operative by a sudden pull to unwind said belt or by said braking means, a toothed rim rigidly connected with said frame, and a plate rigidly connected with said winding pin; wherein said locking means comprises a toothed sector mounted on said plate free to turn within said toothed rim to mesh with the latter to lock said winding pin.
Claim 2
Dependent Claim
133 words
An emergency locking device for a safety belt in a vehicle, comprising a frame, a rotatable winding pin for said belt, locking means for locking said winding pin to said frame to prevent rotation of the former, a rotatably mounted flywheel for actuating said locking means, braking means operated by the change in velocity of said vehicle in any one of at least three directions for braking said flywheel, said flywheel being made operative by a sudden pull to unwind said belt or by said braking means, a toothed rim rigidly connected with said frame, and a plate rigidly connected with said winding pin; wherein said locking means comprises a toothed sector mounted on said plate free to turn within said toothed rim to mesh with the latter to lock said winding pin.
Claim 3
Dependent Claim
26 words
The device as defined in claim 1, including a pawl associated with said toothed sector for ensuring that the latter correctly meshes with said toothed rim.
Claim 4
Dependent Claim
59 words
The device as defined in claim 2, including means for pivotally connecting said pawl to said toothed sector, means for pivotally connecting said toothed sector to said plate eccentrically with respect to said toothed rim, resilient means for biasing said toothed sector and said pawl to respective rest positions, and means for positively connecting said flywheel to said pawl.
Claim 5
Dependent Claim
146 words
An emergency locking device for a safety belt in a vehicle, comprising a frame, a rotatable winding pin for said belt, locking means for locking said winding pin to said frame to prevent rotation of the former, a rotatably mounted flywheel for actuating said locking means, and braking means operated by the change in velocity of said vehicle in any one of at least three directions for braking said flywheel, said flywheel being made operative by a sudden pull to unwind said belt or by said braking means; said braking means comprising a pendulum mounted to respond to said change in velocity, a braking lever actuated by said pendulum for braking the movement of said flywheel, and a balanced mass associated with said pendulum for compensating for the effects of lateral and longitudinal inclinations of said vehicle to make said locking means unresponsive to these inclinations.
Claim 6
Dependent Claim
146 words
An emergency locking device for a safety belt in a vehicle, comprising a frame, a rotatable winding pin for said belt, locking means for locking said winding pin to said frame to prevent rotation of the former, a rotatably mounted flywheel for actuating said locking means, and braking means operated by the change in velocity of said vehicle in any one of at least three directions for braking said flywheel, said flywheel being made operative by a sudden pull to unwind said belt or by said braking means; said braking means comprising a pendulum mounted to respond to said change in velocity, a braking lever actuated by said pendulum for braking the movement of said flywheel, and a balanced mass associated with said pendulum for compensating for the effects of lateral and longitudinal inclinations of said vehicle to make said locking means unresponsive to these inclinations.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |