US3744810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toe iron for safety ski bindings
Assignee: Individual
•
Filing: 1971-04-07
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Granted: 1973-07-10
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Expires: 1991-04-07
Abstract
Abstract Two levers are pivoted to a toe iron part that is fixed to the ski and at their free ends carry respective sole-holders and are biased by a spring element toward their normal position. Each lever forms a crank of a slider crank mechanism. These two slider crank mechanisms have a common slider, which is guided in an at least approximately T-shaped cam slot that is fixed to the ski and has a stem which extends in the longitudinal direction of the ski. The spring element extends in the longitudinal direction of the ski and acts on the slider of the slider crank mechanisms.
Inventors
- 👤 R Jungkind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:22
CPC Classifications
A; A63; A63C; A63C9/00; A63C9/08; A63C9/0805; A63C9/001; A63C9/085; A63C9/08507; A63C9/08521; A63C9/08557; A63C9/08564; A63C9/08571
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
211 words
A toe iron for safety ski bindings comprising a toe iron part which is adapted to be fixed to a ski, two levers pivotally mounted to said toe iron part on opposite sides of the longitudinal axis of said toe iron, a soleholder carried by each of said levers and adapted to receive the sole of a skiing boot, a cam slot fixed relative to said ski and having a first portion extending in the forward longitudinal direction of said toe iron and a second portion extending generally transversely to the longitudinal axis of said toe iron, a slider adapted to move along said cam slot, means connecting said slider to each of said levers so as to form a slider crank mechanism which includes said levers, a spring element extending in the longitudinal direction of said toe iron and cooperating with said slider to urge said slider forward and into contact with said first portion of said cam slot when said crank mechanism and soleholders are in their normal position, said slider being moveable against the biasing action of said spring element from said first portion to said second portion of said cam slot during the outward pivotal movement of said soleholders to allow a release of said skiing boot.
Claim 2
Dependent Claim
211 words
A toe iron for safety ski bindings comprising a toe iron part which is adapted to be fixed to a ski, two levers pivotally mounted to said toe iron part on opposite sides of the longitudinal axis of said toe iron, a soleholder carried by each of said levers and adapted to receive the sole of a skiing boot, a cam slot fixed relative to said ski and having a first portion extending in the forward longitudinal direction of said toe iron and a second portion extending generally transversely to the longitudinal axis of said toe iron, a slider adapted to move along said cam slot, means connecting said slider to each of said levers so as to form a slider crank mechanism which includes said levers, a spring element extending in the longitudinal direction of said toe iron and cooperating with said slider to urge said slider forward and into contact with said first portion of said cam slot when said crank mechanism and soleholders are in their normal position, said slider being moveable against the biasing action of said spring element from said first portion to said second portion of said cam slot during the outward pivotal movement of said soleholders to allow a release of said skiing boot.
Claim 3
Dependent Claim
69 words
The toe iron of claim 1 in which each of said soleholders comprises a backing roller adapted to contact the sole of a said skiing boot and which is rotatably mounted to said levers at a point which, in the normal position of said levers, is closer to the longitudinal axis of said toe iron than the point at which said levers are pivotally mounted to said toe iron.
Claim 4
Dependent Claim
66 words
The toe iron of claim 2 in which said means connecting said slider to each of said levers comprise mechanical links which form part of said slider crank mechanism and are pivotally connected to said levers and further in which the point at which said backing rollers are rotatably mounted is coaxial with the point at which said mechanical links are pivotally mounted to said levers.
Claim 5
Dependent Claim
20 words
The toe iron of claim 1 in which said slider is a guide roller rotatably mounted to said toe iron.
Claim 6
Dependent Claim
15 words
The toe iron of claim 1 in which said spring is attached to said slider.
Claim 7
Dependent Claim
28 words
The toe iron of claim 1 in which a rocker lever is mounted to said toe iron and forms a mechanical connection between said spring and said slider.
Claim 8
Dependent Claim
50 words
The toe iron of claim 6 in which said toe iron further comprises a second toe iron part fixed relative to said ski and an adjusting member cooperating with said second toe iron part and with said rocker lever such that said rocker lever is adjustable along its longitudinal axis.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |