US3630539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heel safety binding for a ski
Assignee: SKI SICHERHEITSBINDUNGEN KG
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Filing: 1970-07-08
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Granted: 1971-12-28
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Expires: 1990-07-08
Abstract
Abstract A heel safety binding for a ski in which a pressure member extending transversely downwardly toward the front of the ski presses upon the rear edge of the heel of the ski boot or a metal heel fitting under a resilient prestress or tension and, upon attaining admissible maximum load, executes an upward angular movement against the prestress in the vertical longitudinal plane of the ski and during which movement the heel is released from the pressure member after a predetermined point in the upward path of movement. More particularly, the pressure member is connected at its upper portion with the upper leg of a substantially C-shaped leaf spring, the closed end of which faces the rear of the ski and the lower leg of which is mounted on a baseplate attached to the ski or directly to the ski.
Inventors
- 👤 Robert Lusser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:13
CPC Classifications
A; A63; A63C; A63C9/00; A63C9/08; A63C9/084; A63C9/0847; A63C9/0841; A63C9/0842; A63C9/0846; A63C9/005; A63C9/086
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
147 words
A heel safety binding comprising a pressure member mounted for swinging movement in a vertical longitudinal plane on a ski, said pressure member extending downwardly and forwardly for pressing on the rear edge or heel fitting of a ski boot under a resilient prestress, and upon attaining an admissible maximum load executing an upward angular movement against the resilient prestress in the vertical longitudinal plane and during which the heel of the ski boot is released from the pressure member after a predetermined point in the upward angular path, the improvement comprising a C-shaped leaf spring having an upper leg, a lower leg, a closed end, and an open end, said lower leg being mounted on the ski with said closed end facing the rear of the ski, and means operatively connecting the upper portions of the pressure member to the upper leg of the leaf spring.
Claim 2
Dependent Claim
147 words
A heel safety binding comprising a pressure member mounted for swinging movement in a vertical longitudinal plane on a ski, said pressure member extending downwardly and forwardly for pressing on the rear edge or heel fitting of a ski boot under a resilient prestress, and upon attaining an admissible maximum load executing an upward angular movement against the resilient prestress in the vertical longitudinal plane and during which the heel of the ski boot is released from the pressure member after a predetermined point in the upward angular path, the improvement comprising a C-shaped leaf spring having an upper leg, a lower leg, a closed end, and an open end, said lower leg being mounted on the ski with said closed end facing the rear of the ski, and means operatively connecting the upper portions of the pressure member to the upper leg of the leaf spring.
Claim 3
Dependent Claim
30 words
The heel safety binding as claimed in claim 1 in which said pressure member is connected by means of a hinge pin with a free end of said upper leg.
Claim 4
Dependent Claim
32 words
The heel safety binding as claimed in claim 1 in which said upper and lower legs of the leaf spring are connected adjacent the open end by at least one helical spring.
Claim 5
Dependent Claim
33 words
The heel safety binding as claimed in claim 2 in which a helical spring is connected to said hinge pin adjacent each end thereof and to said lower leg of said leaf spring.
Claim 6
Dependent Claim
98 words
The heel safety binding as claimed in claim 2 in which said hinge pin extends through a rolled portion of the free end of said upper leg and said upper leg being provided with a longitudinal slot for receiving said pressure member, said slot merging with a connecting point rearwardly of said hinge pin for receiving the tip of a ski pole for pressing from behind an extension of the pressure member projecting upwardly above the hinge pin for releasing the lower end of the pressure member from the rear edge or heel fitting of the ski boot.
Claim 7
Dependent Claim
44 words
The heel safety binding as claimed in claim 2 including a small leaf spring connected at one end of the undersurface of the upper leg of said C-shaped leaf spring and the opposite end of said small leaf spring pressing said pressure member forwardly.
Claim 8
Dependent Claim
135 words
The heel safety binding as claimed in claim 1, including a bearing block provided on the lower leg of said C-shaped leaf spring, a two-armed lever mounted on said bearing block for swinging movement in the vertical longitudinal plane, the rear arm of said leveR extending through an opening in the closed end of said leaf spring capable of being pressed downwardly by the tip of a ski pole, the front arm of said lever being of lesser length than the rear arm and engaging under the lower end of said pressure member which is pressed rearwardly by positioning a ski boot onto the ski thereby raising the pressure member into a position from which it will independently arrive at its operative position under the action of a spring force which presses the same forwardly.
Claim 9
Dependent Claim
56 words
The heel safety binding as claimed in claim 1 in which the forward end of said lower leg of said C-shaped leaf spring is directed upwardly at an angle to said leg, said upwardly directed portion being bifurcated to provide two spaced tines which receive the heel fitting and the lower end of the pressure member.
Claim 10
Dependent Claim
40 words
The heel safety binding as claimed in claim 1 in which the lower leg of said C-shaped leaf spring is mounted on a baseplate secured to the ski so as to be adjustable in the longitudinal direction of the ski.
Claim 11
Dependent Claim
113 words
The heel safety binding as claimed in claim 1 wherein said pressure member at its downward end pressing on the rear edge or heel fitting of the ski boot, comprises: a shoulder formation engaging said rear edge or heel fitting in normal skiing operation; and an extension which partly forms said shoulder, the extension being in the form of a rounded nose which comes into camming engagement with the rear face of the rear edge or heel fitting of the ski boot so as to assist in the release of the boot from the safety binding when the heel of the boot is drawn upwardly with a force greater than a predetermined limit.
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |