US3771806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety binding for skis
Assignee: INTAMIN AG
•
Filing: 1971-12-20
•
Granted: 1973-11-13
•
Expires: 1991-12-20
Abstract
Abstract A ski safety binding comprising a front binding unit and a backbinding unit, parts of these units being mounted on the bottom side of the sole of the ski boot and parts being mounted on the ski trunk, for releasable engagement within each unit, whereby the engagement in each unit is obtained by a pair of jaws under spring tension which may be overcome by extraordinary movement of the boot sole so as to be released from the engagement.
Inventors
- 👤 H Hinterholzer
- 👤 A Saiko
- 👤 R Spieldiener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:43
CPC Classifications
A; A63; A63C; A63C9/00; A63C9/08; A63C9/086; A63C9/081; A63C9/082; A63C9/084; A63C9/0845; A63C9/0846; A63C9/085; A63C9/08507; A63C9/08521; A63C9/08557; A63C9/08585; A63C9/0805; A63C9/0847
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
216 words
A ski safety binding comprising a front binding unit and a back binding unit, parts of said units being mounted on the underface of the sole of the ski boot and the other parts on the ski trunk for releasable engagement within each unit, said back binding parts on the boot sole including a catching element which has formed an edge on two opposite lateral sides and therebetween beneath the heel area of the foot a central organ defining an axis at right angle to said underface of the boot sole, said binding parts on the ski trunk including a pair of spring-loaded oppositely movable vise-jaws for resiliently engaging said edges of said catching element, between said jaws a fastening member rigidly mounted on the ski trunk and formed for coaxial and rotational co-operation with said central organ, when said binding units are in engaged condition, a single front binding part rigidly mounted on the boot sole beneath the toes area or ball area of the foot at an invariable distance from the axis of said central organ, and said front binding parts on the ski trunk including a pair of spring-loaded lateral jaws for resiliently engaging together said single part in their closed position and being separately movable therefrom outwardly for releasing said single part.
Claim 2
Dependent Claim
216 words
A ski safety binding comprising a front binding unit and a back binding unit, parts of said units being mounted on the underface of the sole of the ski boot and the other parts on the ski trunk for releasable engagement within each unit, said back binding parts on the boot sole including a catching element which has formed an edge on two opposite lateral sides and therebetween beneath the heel area of the foot a central organ defining an axis at right angle to said underface of the boot sole, said binding parts on the ski trunk including a pair of spring-loaded oppositely movable vise-jaws for resiliently engaging said edges of said catching element, between said jaws a fastening member rigidly mounted on the ski trunk and formed for coaxial and rotational co-operation with said central organ, when said binding units are in engaged condition, a single front binding part rigidly mounted on the boot sole beneath the toes area or ball area of the foot at an invariable distance from the axis of said central organ, and said front binding parts on the ski trunk including a pair of spring-loaded lateral jaws for resiliently engaging together said single part in their closed position and being separately movable therefrom outwardly for releasing said single part.
Claim 3
Dependent Claim
53 words
A ski safety binding as claimed in claim 1, wherein said central organ of said catching element defines a downward aperture with a lateral circular surface, and said fastening member forms a top piece adapted to fit against said circular surface of said central organ in engaged condition of said back binding unit.
Claim 4
Dependent Claim
58 words
A ski safety binding as claimed in claim 1, wherein said central organ of said catching element defines a downward opening borehole with a cylindrical surface, an elastically compressible plug resiliently occupying said borehole, and said fastening member forms a cylindrical pin tapering upwards to a point and adapted to fit in said borehole while compressing said plug.
Claim 5
Dependent Claim
44 words
A ski safety binding as claimed in claim 1, wherein a sole plate is rigidly attached to The underface of the boot sole and carries on its own underface said single front binding part and said catching element in unvariable space from each other.
Claim 6
Dependent Claim
120 words
A ski safety binding as claimed in claim 1, wherein two levers hinged together at one end have formed each one of said vise jaws, a cam on the other end of each of said levers and a tension spring connecting said other lever ends, said fastening member constitutes a bearing which defines an axis perpendicular to the upper face of the ski trunk and holds said levers swingable about said axis and further defines an unround contour which contacts said levers for spreading same against the action of said spring when they swing from their initial position, and a tappet at the back end of the boot sole for engaging at least one of said cams in swinging direction.
Claim 7
Dependent Claim
73 words
A ski safety binding as claimed in claim 5, wherein said fastening member consists of three superposed disks fixed on the ski trunk, the middle disk thereof defining said unround contour, the others of said disks projecting with their periphery beyond said unround contour and holding said two levers between them, and packing rings mounted each on the periphery of said other disks for bearing upon said levers from above and below, respectively.
Claim 8
Dependent Claim
49 words
A ski safety binding as claimed in claim 5, wherein a sleeve is carried in each of said two cams, said two sleeves housing said tension spring, and a manipulating lever journalled on said sleeves for spreading said cams and jaw levers against the action of said tension spring.
Claim 9
Dependent Claim
43 words
A ski safety binding as claimed in claim 1, wherein said catching element has formed four ribs in cruciform on its underside and defines a downward aperture in the center of said cross thus displaying by said aperture lateral gaps between said ribs.
Claim 10
Dependent Claim
142 words
A ski safety binding as claimed in claim 1, wherein said front binding parts on the ski trunk comprise two levers crossing each other and being swingable about an axis perpendicular to the upper face of the ski trunk, each lever forming at its back end a lateral jaw for engaging said single front binding part on the boot sole from one or the other of opposite lateral sides, a tension spring connecting the front ends of said levers so as to urge same into their engaging position, said single front binding part being a wedge element having on opposite lateral sides an upwardly bevelled wedge surface and an upwardly bevelled front surface, said surfaces being provided to spread said lateral jaws when the boot is forced out of engagement in a direction different from the longitudinal direction of the ski trunk.
Claim 11
Dependent Claim
71 words
A ski safety binding as claimed in claim 9, wherein with said levers the geometrical lever arm between said lever axis and said jaws is shorter than the geometrical lever arm between said lever axis and said spring, the longitudinal direction of the ski trunk and said geometrical lever arm defining at said lever axis in the engaging position of said levers an angle in the range of 30* to 60*.
Claim 12
Dependent Claim
54 words
A ski safety binding as claimed in claim 9, wherein a stop member is mounted on the ski trunk between said front binding jaws to define the utmost forward position of said wedge element engaged by said jaws, which position ascertains co-operation for an intended engagement among said parts of said back binding unit.
Claim 13
Dependent Claim
50 words
A ski safety binding as claimed in claim 1, wherein a tension spring is provided in each case for maintaining under spring load said pair of vise-jaws and said pair of lateral jaws, a cable connecting the ends of each of said springs for preventing any overstretching of the same.
Claim 14
Dependent Claim
50 words
A ski safety binding as claimed in claim 1, wherein said lateral edges of said catching element extend in engaged position each in the longitudinal direction of the ski trunk over a length which corresponds to a maximum angle of approximately 30* of a releasing rotation of said catching element.
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) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |