US3909028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knee twist sensing ski binding
Assignee: Salomon SAS
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Filing: 1974-09-03
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Granted: 1975-09-30
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Expires: 1994-09-03
Abstract
Abstract A ski binding for preventing twist-type fractures of the lower leg has an elongated sensor element extending between the knee region of the skier and the ski boot and responsive to angular displacement of the knee relative to the foot so as to release a locking mechanism interconnecting the boot to the ski when excessive twist between the foot and the knee is detected. This sensor element can comprise a Bowden-type cable whose core projects more or less from the sheath as the leg is twisted. Alternately a nontwistable but otherwise flexible element extending from the knee to the latch in the boot is provided which operates the locking mechanism securing the boot to the ski.
Inventors
- 👤 Guy Courvoisier
- 👤 Pierre Comte
- 👤 Gerard Chevrolet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:13
CPC Classifications
A; A43; A43B; A43B5/00; A43B5/04; A43B5/0415; A43B5/0417; A61; A61B; A61B5/00; A61B5/22; A61B5/224; A61B5/45; A61B5/4528; A63; A63C; A63C9/00; A63C9/08; A63C9/084; A63C9/0844; A63C9/0845; A63C9/0846; A63C9/086; A63C9/0805
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
109 words
A safety ski binding comprising: a ski boot adapted to receive the foot of a skier; latch means for releasably securing said boot to a ski; a sensor means having one portion carried at the knee region of said skier and another portion carried at the foot region of said skier adapted to sense relative movement of the two said portions; and operating means connected between said sensor means and said latch means for operating same and releasing said boot from said ski when said knee and foot regions are angularly offset to each other about an axis passing through said regions to an extent exceeding a predetermined limit.
Claim 2
Dependent Claim
109 words
A safety ski binding comprising: a ski boot adapted to receive the foot of a skier; latch means for releasably securing said boot to a ski; a sensor means having one portion carried at the knee region of said skier and another portion carried at the foot region of said skier adapted to sense relative movement of the two said portions; and operating means connected between said sensor means and said latch means for operating same and releasing said boot from said ski when said knee and foot regions are angularly offset to each other about an axis passing through said regions to an extent exceeding a predetermined limit.
Claim 3
Dependent Claim
36 words
The ski binding defined in claim 1 wherein said sensor means including an elongated flexible element having one end constituting said one portion and another end constituting said other portion and connected to said operating means.
Claim 4
Dependent Claim
29 words
The ski binding defined in claim 2, further comprising means for securing said one end to said knee region and for securing said other end to said foot region.
Claim 5
Dependent Claim
71 words
The sKi binding defined in claim 2, further comprising a second such sensor element having its one end secured to one side of said knee region and its other end passing over to the other side of said foot region, the first-mentioned sensor element having its one end secured to the other side of said knee region and its other end passing over to the one side of said foot region.
Claim 6
Dependent Claim
51 words
The ski binding defined in claim 4 wherein said elements each include a tubular and flexible extensible sheath and an inextensible and flexible core received within said sheath, said cores being fixed at said one ends at said knee region and being secured at said other ends to said operating means.
Claim 7
Dependent Claim
24 words
The ski binding defined in claim 5 wherein said operating means includes a pivotal lever assembly having one lever arm secured to said cores.
Claim 8
Dependent Claim
80 words
The ski binding defined in claim 3 wherein said element is flexible and said ends are angularly fixed relative to each other, said one end of said element being angularly fixed at said knee region and said other end being angularly displaceable relative to said binding at said foot region, whereby the angular orientation of said other end relative to said binding at said foot region corresponds to the angular position of said knee region relative to said foot region.
Claim 9
Dependent Claim
29 words
The ski binding defined in claim 7 wherein said operating means includes a pivotal lever assembly having one lever arm formed with a cam engageable with said other end.
Claim 10
Dependent Claim
25 words
The ski binding defined in claim 8 wherein said other end carries a radially projecting arm and a roller on said arm engaging said cam.
Claim 11
Dependent Claim
44 words
The ski binding defined in claim 3 wherein said latch means includes a slidable body formed with a notch and said operating means includes a pivotal lever assembly connected to said element and having a nose engageable in said notch for preventing sliding thereof.
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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |