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US3938627A
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US
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Mechanical energy absorbing device and safety harness using the same
Assignee: Nissan Motor Co Ltd
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Filing: 1975-01-24
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Granted: 1976-02-17
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Expires: 1995-01-24
Abstract
Abstract An improved mechanical energy absorbing device is herein disclosed which includes an elongated member plastically deformable in a longitudinal direction when subjected to a mechanical force greater than an elastic limit of the member in the longitudinal direction so that the mechanical energy applied to the device is at least partly consumed in the plastic deformation of the elongated member. A typical application of the energy absorbing device is a safety harness for a seat of a motor vehicle or air plane although the device may lend itself to various other practical purposes.
Inventors
- 👤 Yasuo Nagazumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:38
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/28; F; F16; F16F; F16F7/00; F16F7/12; F16F7/123
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
121 words
In a safety harness, a mechanical energy absorbing device comprising an elongated casing having a rigid construction, said elongated casing having two spaced, substantially parallel inner surfaces which face with each other; and a deformable strip of substantially U-shaped form disposed between said two inner surfaces, said strip having one leg and other leg which is rigidly secured at an end portion thereof to the adjacent surface of one of said two inner surfaces; said mechanical energy absorbing device being connected to the safety harness so that a tension force is applied between said elongated casing and said one leg of said deformable strip, said one leg being formed at both sides thereof with guide flanges extending between said two surfaces.
Claim 2
Dependent Claim
121 words
In a safety harness, a mechanical energy absorbing device comprising an elongated casing having a rigid construction, said elongated casing having two spaced, substantially parallel inner surfaces which face with each other; and a deformable strip of substantially U-shaped form disposed between said two inner surfaces, said strip having one leg and other leg which is rigidly secured at an end portion thereof to the adjacent surface of one of said two inner surfaces; said mechanical energy absorbing device being connected to the safety harness so that a tension force is applied between said elongated casing and said one leg of said deformable strip, said one leg being formed at both sides thereof with guide flanges extending between said two surfaces.
Claim 3
Dependent Claim
26 words
A mechanical energy absorbing device as claimed in claim 1, further comprising at least one bolt rigidly securing said other leg to the adjacent inner surface.
References Cited (Backward Citations)
FR1109578A
Cited
US3504567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-16 | 1979-08-18 | 1980-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-16 | 1983-08-18 | 1984-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-16 | 1987-08-18 | 1988-02-17 | $7700.00 | Window Closed / Lapsed |