US3632060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tension limiter for safety belts in motor vehicles
Assignee: Klippan GmbH Hamburg
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Filing: 1969-12-02
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Granted: 1972-01-04
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Expires: 1989-12-02
Abstract
Abstract A tension limiter for safety belts in motor vehicles comprises a substantially disc-shaped plastically deformable reaction member arranged continuously to be deformed by deforming means when a safety belt is withdrawn from its winding shaft, said deformable reaction member during rotation of the winding shaft being continuously deformed in one direction at at least a first spot and in the opposite direction at at least a second spot.
Inventors
- 👤 Arnold Balder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:18
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/34; B60R22/341; B60R22/3413; B60R22/28; B60R2022/286
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
98 words
A tension limiter for safety belts in motor vehicles comprising a. a substantially disc-shaped plastically deformable reaction member, b. means for deforming said reaction member continuously in one direction at at least one spot and in the opposite direction at at least another spot, and c. a rotatable shaft about which one end of the safety belt is wound for rotating either said reaction member or deforming means, d. whereby the energy of forward motion of the belt wearer is absorbed by deformation of said reaction member as the end of said belt is unwound from said shaft.
Claim 2
Dependent Claim
98 words
A tension limiter for safety belts in motor vehicles comprising a. a substantially disc-shaped plastically deformable reaction member, b. means for deforming said reaction member continuously in one direction at at least one spot and in the opposite direction at at least another spot, and c. a rotatable shaft about which one end of the safety belt is wound for rotating either said reaction member or deforming means, d. whereby the energy of forward motion of the belt wearer is absorbed by deformation of said reaction member as the end of said belt is unwound from said shaft.
Claim 3
Dependent Claim
32 words
A tension limiter according to claim 1, wherein the deforming means comprise two deforming members each provided with at least one projection, the projections pressing against the reaction member from opposite sides.
Claim 4
Dependent Claim
38 words
A tension limiter according to claim 1, wherein said reaction member is provided with a bend and said deforming means comprises two deforming members located on opposite sides of said reaction member and provided with a diametrical bend.
Claim 5
Dependent Claim
19 words
A tension limiter according to claim 3, comprising means for adjustably varying the distance between the two deforming members.
Claim 6
Dependent Claim
35 words
A tension limiter according to claim 2, wherein the reaction member is secured in a stationary position and the deforming members on both sides of the reaction member are operatively associated with the rotatable shaft.
Claim 7
Dependent Claim
52 words
A tension limiter according to claim 5, wherein each deforming member is provided with at least one projection of which one presses a corrugation into the reaction member from one side, whereas the other projection presses a corrugation into the reaction member from the other side during each revolution of the shaft.
Claim 8
Dependent Claim
26 words
A tension limiter according to claim 6, wherein the deforming members each contain a circular groove for the reception of the corrugation in the reaction member.
Claim 9
Dependent Claim
28 words
A tension limiter according to claim 6, wherein the projections on the deforming members are located the same radial distance away from the axis of the rotatable shaft.
Claim 10
Dependent Claim
25 words
A tension limiter according to claim 6, wherein at least one of the projections is a ball held in a recess in a deforming member.
Claim 11
Dependent Claim
13 words
A tension limiter according to claim 6, wherein the projections are adjustable screws.
Claim 12
Dependent Claim
44 words
A tension limiter according to claim 1, wherein the plastically deformable reaction member is cup-shaped and includes a rim, said deforming means comprising a first deforming member for bending said rim radially inwardly and a second deforming member for bending said rim radially outwardly.
Claim 13
Dependent Claim
22 words
A tension limiter according to claim 1, further comprising a frame member, said deforming means forming a part of said frame member.
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |