Patent US3920256A successfully refreshed from Google Patents.
US3920256A
Expired / Lapsed
US
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Safety ski binding
Assignee: Vereinigte Baubeschlag - Fabriken Gretsch and Co GmbH
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Filing: 1974-07-30
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Granted: 1975-11-18
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Expires: 1994-07-30
Abstract
Abstract A safety ski binding having a hollow boot fastener adapted to be swung upwardly out of a normal boot fastening position about a transverse shaft and laterally about a vertical shaft counter to arresting forces, an arresting surface provided on the inside on said boot fastener, an arresting member cooperable with said arresting surface, spring means biasing said member in the direction of the boot into engagement with said arresting surface, said arresting surface having a plurality of vertical arresting cams which rise to a vertical release point during a vertical movement relative to the arresting member and superimposed also a plurality of lateral arresting cams which rise to lateral release points during a lateral movement relative to the arresting member, the lateral arresting cams having centers of curvature located on the side of the arresting surface towards the boot, and said arresting member having two arresting projections movable into engagement with the arresting surface on both sides of a central longitudinal plane thereof when the boot fastener is in a central position.
Inventors
- 👤 Brigitte S Sittmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:18
CPC Classifications
A; A63; A63C; A63C9/00; A63C9/08; A63C9/084; A63C9/0846; A63C9/007; A63C9/0841; A63C9/0842; A63C9/0845; A63C9/0805; A63C9/0847; A63C9/0848
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
173 words
A safety ski binding having a hollow boot fastener adapted to be swung upwardly out of a normal boot fastening position about a transverse shaft and laterally about a vertical shaft counter to arresting forces, an arresting surface provided on the inside on said boot fastener, an arresting member cooperable with said arresting surface, spring means biasing said member in the direction of the boot into engagement with said arresting surface, said arresting surface having a plurality of vertical arresting cams which rise to a vertical release point during a vertical movement relative to the arresting member and superimposed also a plurality of lateral arresting cams which rise to lateral release points during a lateral movement relative to the arresting member, the lateral arresting cams having centers of curvature located on the side of the arresting surface towards the boot, and said arresting member having two arresting projections movable into engagement with the arresting surface on both sides of a central longitudinal plane thereof when the boot fastener is in a central position.
Claim 2
Dependent Claim
173 words
A safety ski binding having a hollow boot fastener adapted to be swung upwardly out of a normal boot fastening position about a transverse shaft and laterally about a vertical shaft counter to arresting forces, an arresting surface provided on the inside on said boot fastener, an arresting member cooperable with said arresting surface, spring means biasing said member in the direction of the boot into engagement with said arresting surface, said arresting surface having a plurality of vertical arresting cams which rise to a vertical release point during a vertical movement relative to the arresting member and superimposed also a plurality of lateral arresting cams which rise to lateral release points during a lateral movement relative to the arresting member, the lateral arresting cams having centers of curvature located on the side of the arresting surface towards the boot, and said arresting member having two arresting projections movable into engagement with the arresting surface on both sides of a central longitudinal plane thereof when the boot fastener is in a central position.
Claim 3
Dependent Claim
34 words
A safety ski binding according to claim 1, wherein the arresting member is curved between said two arresting projections, said member being curved in the same direction and greater than said lateral arresting cams.
Claim 4
Dependent Claim
38 words
A safety ski binding according to claim 2, wherein the width of said arresting surface increases downwards in a manner such that the spacing of the contact surfaces between the arresting member and the arresting surface decreases downwards.
Claim 5
Dependent Claim
63 words
A safety ski binding according to claim 1, including a housing, said boot fastener having a vertical rotating shaft which is attached to said housing in a manner so as to pivot about the transverse shaft and carries the front portion of the boot fastener pivotable about the vertical shaft, said vertical shaft being located between the transverse shaft and the arresting surface.
Claim 6
Dependent Claim
21 words
A safety ski binding according to claim 4, wherein said arresting surface extends downwardly to the vicinity of the vertical shaft.
Claim 7
Dependent Claim
22 words
A safety ski binding according to claim 2, wherein the curvatures of said lateral arresting cams and said arresting member are circular.
Claim 8
Dependent Claim
22 words
A safety ski binding according to claim 1, wherein the arresting surface comprises two surfaces substantially homologous to the central longitudinal plane.
Claim 9
Dependent Claim
23 words
A safety ski binding according to claim 1, wherein the curvature of radial sections of the arresting surfaces increases from top to bottom.
Claim 10
Dependent Claim
49 words
A safety ski binding according to claim 1, including a housing having projections provided thereon, said boot fastener having lugs thereon cooperable with said housing projections with the binding closed in a manner such that lateral release is blocked within a predetermined upward pivoting range of the boot fastener.
Claim 11
Dependent Claim
60 words
A safety ski binding according to claim 1, wherein the vertical cams have a first portion along which a substantially constant holding down force is exerted on the boot fastener, said first portion being followed by a second portion having a rising holding down force, and said second portion being followed by a peak where the holding down force disappears.
Claim 12
Dependent Claim
29 words
A safety ski binding according to claim 10, wherein following the peak the cams fall away whereby a force is exerted on the boot fastener in the opening direction.
Claim 13
Dependent Claim
46 words
A safety ski binding according to claim 1, including a lever for moving the arresting member away from the arresting surface counter to the bias of said spring means, a housing, and a spring between the housing and the boot fastener biased in the opening direction.
Claim 14
Dependent Claim
38 words
A safety ski binding according to claim 1, wherein the front edge of the arresting member is formed by the generatrix of a roller which is rotatable about the transverse shaft and is fitted to the arresting member.
Claim 15
Dependent Claim
52 words
A safety ski binding according to claim 1, wherein the front portion of the boot fastener is divided at the center of the binding in the longitudinal direction of the ski, whereby only the right-hand portion of the boot fastener pivots to the right and the left-hand portion pivots to the left.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |