US3817474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable safety belt
Assignee: Individual
•
Filing: 1965-04-01
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Granted: 1974-06-18
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Expires: 1985-04-01
Abstract
Abstract A seat belt retractor having an automatic clamp for preventing extension of seat belt employing a moving clamp part which also acts as a buffer to prevent the retraction reel from taking up increments of slack which occur while the belt is fastened due to abnormal movements of the user.
Inventors
- 👤 R Board
- 👤 N Shapiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:13
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/34; B60R22/347; B60R22/35; B60R22/353; B60R2022/3475
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
181 words
In a retractable belt having a retraction device with a strap connected thereto and adapted to be retracted, extended to a desired length and then prevented from substantial further extension, the improvement which comprises a strap guide supported for pivotal movement relative to said device and having leading and trailing edges spaced on opposite sides of its pivotal axis, and means training said strap from said retraction device and reversely around said guide, with indentations at said edges, for exerting forces on said guide and causing it to turn in one direction in response to the retracting force of said retraction device exerted upon the trailing edge of said guide and to turn in the opposite direction in response to a force exerted upon the leading edge of said guide through the strap beyond said leading edge, the indentation at one edge increasing as the indentation at the other edge decreases, and vice versa, whereby the effective length of the strap beyond said leading edge may decrease and then increase again by an amount determined by the tUrning of said guide.
Claim 2
Dependent Claim
181 words
In a retractable belt having a retraction device with a strap connected thereto and adapted to be retracted, extended to a desired length and then prevented from substantial further extension, the improvement which comprises a strap guide supported for pivotal movement relative to said device and having leading and trailing edges spaced on opposite sides of its pivotal axis, and means training said strap from said retraction device and reversely around said guide, with indentations at said edges, for exerting forces on said guide and causing it to turn in one direction in response to the retracting force of said retraction device exerted upon the trailing edge of said guide and to turn in the opposite direction in response to a force exerted upon the leading edge of said guide through the strap beyond said leading edge, the indentation at one edge increasing as the indentation at the other edge decreases, and vice versa, whereby the effective length of the strap beyond said leading edge may decrease and then increase again by an amount determined by the tUrning of said guide.
Claim 3
Dependent Claim
181 words
In a retractable belt having a retraction device with a strap connected thereto and adapted to be retracted, extended to a desired length and then prevented from substantial further extension, the improvement which comprises a strap guide supported for pivotal movement relative to said device and having leading and trailing edges spaced on opposite sides of its pivotal axis, and means training said strap from said retraction device and reversely around said guide, in frictional engagement therewith, for exerting forces on said guide and causing it to turn in one direction in response to the retracting force of said retraction device exerted upon the trailing edge of said guide and to turn in the opposite direction in response to a force exerted upon the leading edge of said guide through the strap beyond said leading edge, the guide being pivotally movable through a predetermined distance with belt movement in one direction, and vice versa, whereby the effective length of the strap beyond said leading edge may decrease and then increase again by an amount determined by the turning of said guide.
Claim 4
Dependent Claim
181 words
In a retractable belt having a retraction device with a strap connected thereto and adapted to be retracted, extended to a desired length and then prevented from substantial further extension, the improvement which comprises a strap guide supported for pivotal movement relative to said device and having leading and trailing edges spaced on opposite sides of its pivotal axis, and means training said strap from said retraction device and reversely around said guide, in frictional engagement therewith, for exerting forces on said guide and causing it to turn in one direction in response to the retracting force of said retraction device exerted upon the trailing edge of said guide and to turn in the opposite direction in response to a force exerted upon the leading edge of said guide through the strap beyond said leading edge, the guide being pivotally movable through a predetermined distance with belt movement in one direction, and vice versa, whereby the effective length of the strap beyond said leading edge may decrease and then increase again by an amount determined by the turning of said guide.
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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |