Patent US3757431A successfully refreshed from Google Patents.
US3757431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crash dummy chest structure
Assignee: Ford Motor Co
•
Filing: 1972-12-06
•
Granted: 1973-09-11
•
Expires: 1992-12-06
Abstract
Abstract An impact damping means is provided for the chest structure of an anthropomorphic dummy. The load-deflection of the chest structure is hydraulically controlled through a lever arm arrangement reacting on a viscous damping means.
Inventors
- 👤 R Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:09
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/28; G09B23/30; G09B23/32
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
132 words
Impact damping means for the chest structure of an anthropomorphic dummy having a simulated backbone, a simulated rib cage configuration formed of a plurality of resilient members projecting forwardly from the backbone, and a simulated sternum, the impact damping means comprising a fulcrum plate secured to the simulated backbone, lever means pivotally supported on the fulcrum plate, pivot means coupling the lever means to the rear of the simulated sternum, and viscous damping means interposed between the lever means and simulated backbone resisting at a controlled rate pivotal movement of the lever means caused by a substantially frontal impact force exerted on the dummy chest structure and transmitted to the lever means through the sternum, the rib members restoring the lever means to its unimpacted position upon diminution of the impacting force.
Claim 2
Dependent Claim
132 words
Impact damping means for the chest structure of an anthropomorphic dummy having a simulated backbone, a simulated rib cage configuration formed of a plurality of resilient members projecting forwardly from the backbone, and a simulated sternum, the impact damping means comprising a fulcrum plate secured to the simulated backbone, lever means pivotally supported on the fulcrum plate, pivot means coupling the lever means to the rear of the simulated sternum, and viscous damping means interposed between the lever means and simulated backbone resisting at a controlled rate pivotal movement of the lever means caused by a substantially frontal impact force exerted on the dummy chest structure and transmitted to the lever means through the sternum, the rib members restoring the lever means to its unimpacted position upon diminution of the impacting force.
Claim 3
Dependent Claim
25 words
Impact damping means according to claim 1, in which: the lever means comprises a lever arm pivotally supported intermediate its ends on the fulcrum plate.
Claim 4
Dependent Claim
41 words
Impact damping means according to claim 2, in which: the lever arm has a long arm and a short arm, the end of the long arm away from the lever means fulcrum being coupled by the pivot means to the sternum.
Claim 5
Dependent Claim
39 words
Impact damping means according to claim 3, in which: the pivot means coupling the lever means to the sternum is a pin and slot connection permitting relative pivotal and sliding movement between the long arm end and the sternum.
Claim 6
Dependent Claim
71 words
Impact damping means according to claim 4, in which: the short arm of the lever means has a pin and slot connection with a piston rod of a viscous damping means, the viscous damping means comprising a fluid filled cylinder having a piston therein, the piston having an orifice therethrough for fluid flow at a controlled rate from one side of the piston to the other to achieve the damping action.
Claim 7
Dependent Claim
42 words
Impact damping means according to claim 1, in which: the lever means comprises a substantially ''''Y''''-shaped lever arm, the lever arm being fulcrummed on the fulcrum plate for swinging movement about a pivot axis contiguous to the ends of the diverging legs.
Claim 8
Dependent Claim
35 words
Impact damping means according to claim 6, in which: the end of the center leg of the lever arm farthest away from the fulcrum pivot axis is coupled by the pivot means to the sternum.
Claim 9
Dependent Claim
34 words
Impact damping means according to claim 7, in which: the pivot means comprises a pin and slot connection permitting relative pivotal and sliding movement between the end of the center leg and the sternum.
Claim 10
Dependent Claim
67 words
Impact damping means according to claim 8, in which: the ends of the diverging legs of the lever arm each having pin and slot connections with piston rods of a pair of spaced viscous damping devices, each damping device comprising a fluid filled cylinder having an orifice therethrough providing a passageway for the controlled fluid flow from one side of the piston to achieve the damping action.
References Cited (Backward Citations)
US3557471A
Cited
US3664038A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |