US3693989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety ski bindings
Assignee: Individual
•
Filing: 1970-05-01
•
Granted: 1972-09-26
•
Expires: 1990-05-01
Abstract
Abstract A safety ski binding particularly designed to hold the toe of a ski boot properly connected with a ski while automatically releasing the ski boot when required. The binding includes a pivot whose axis is perpendicular to the upper surface of the ski in at least one position of the pivot. A swing member is swingable about the pivot and carries a toe clamp for engaging the toe of a boot. A spring assembly coacts with the pivot and the swing member to yieldably resist swinging of the latter about the pivot axis from a central neutral position. The spring assembly acts in such a way as to increase the resistance to turning of the swing member from its neutral position only through a predetermined initial angular increment. When the swing member turns beyond the latter increment, the spring assembly does not provide any additional resistance to turning of the swing member.
Inventors
- 👤 Karl Dieter Forcht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:39
CPC Classifications
A; A63; A63C; A63C9/00; A63C9/08; A63C9/0807; A63C9/007; A63C9/0805; A63C9/085; A63C9/08535; A63C9/08542; A63C9/0855; A63C9/08557; A63C9/08564; A63C9/08578; A63C9/08585; A63C9/005
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
251 words
In a safety ski-binding a ski having an upper surface, pivot means defining a pivot axis which in at least one position of said pivot means extends perpendicularly with respect to said upper surface, a swing member carried by said pivot means for free swinging movement about said pivot axis, a toe clamp carried by said swing member for movement therewith and adapted to engage the toe of a ski boot for releasably clamping the latter to the ski, and a pair of spring means symmetrically arranged with respect to said pivot axis and operatively connected on the one hand to said pivot means and on the other hand to said swing member for yieldably resisting turning of said swing member and toe clamp therewith about said axis to a position releasing a ski boot, said pivot means including a pivot pin having a pair of opposed side surfaces, said swing member being swingable on said pin and having a pair of elongated openings extending transversely of the ski and communicating with said side surfaces of said pin, said spring means including a pair of coil springs respectively situated in said openings of said said member and a pair of washers respectively situated between said coil springs and said side surfaces of said pin, said washers being of a noncircular configuration, and said pin having recesses receiving said washers and preventing turning of the latter except about said pivot axis together with said swing member, circumferentially with respect to said pin.
Claim 2
Dependent Claim
251 words
In a safety ski-binding a ski having an upper surface, pivot means defining a pivot axis which in at least one position of said pivot means extends perpendicularly with respect to said upper surface, a swing member carried by said pivot means for free swinging movement about said pivot axis, a toe clamp carried by said swing member for movement therewith and adapted to engage the toe of a ski boot for releasably clamping the latter to the ski, and a pair of spring means symmetrically arranged with respect to said pivot axis and operatively connected on the one hand to said pivot means and on the other hand to said swing member for yieldably resisting turning of said swing member and toe clamp therewith about said axis to a position releasing a ski boot, said pivot means including a pivot pin having a pair of opposed side surfaces, said swing member being swingable on said pin and having a pair of elongated openings extending transversely of the ski and communicating with said side surfaces of said pin, said spring means including a pair of coil springs respectively situated in said openings of said said member and a pair of washers respectively situated between said coil springs and said side surfaces of said pin, said washers being of a noncircular configuration, and said pin having recesses receiving said washers and preventing turning of the latter except about said pivot axis together with said swing member, circumferentially with respect to said pin.
Claim 3
Dependent Claim
45 words
The combination of claim 1 and wherein said recesses of said pin define a pair of flat, parallel opposed side surfaces against which said washers are pressed by said coil springs with said flat surfaces situated inwardly from the outer circumferential surface of said pin.
Claim 4
Dependent Claim
48 words
The combination of claim 2 and wherein said recesses of said pin include flat guide surfaces parallel to the upper surface of the ski and said washers respectively having corresponding flat surfaces parallel to the upper surface of the ski and engaging the guide surfaces of the pin.
Claim 5
Dependent Claim
32 words
The combination of claim 3 and wherein each washer has a pair of opposed flat guide surfaces parallel to the upper surface of the ski and engaging corresponding surfaces of the pin.
Claim 6
Dependent Claim
78 words
The combination of claim 4 and wherein each washer has in engagement with a side surface of said pin a pair of flat surfaces extending perpendicularly with respect to the upper surface of the ski and each washer being formed between the latter pair of flat surfaces which are perpendicular to the upper surface of the ski with an elongated groove extending uniformly throughout the entire height of the washer perpendicularly to the upper surface of the ski.
Claim 7
Dependent Claim
16 words
The combination of claim 5 and wherein each groove is of a semicircular configuration in cross-section.
Claim 8
Dependent Claim
20 words
The combination of claim 6 and wherein the raDius of each groove is smaller than the radius of said pin.
Claim 9
Dependent Claim
46 words
The combination of claim 7 and wherein the transition from the groove of each washer to the flat surfaces thereof between which the groove is situated and the transition from the flat side surfaces of the pin to the circumferential exterior remaining surface thereof are rounded.
Claim 10
Dependent Claim
241 words
In a safety ski-binding, a ski having an upper surface, pivot means defining a pivot axis which in at least one position of said pivot means extends perpendicularly with respect to said upper surface, a swing member carried by said pivot means for free swinging movement about said pivot axis, a toe clamp carried by said swing member for movement therewith and adapted to engage the toe of a ski boot for releasably clamping the latter to the ski, and a pair of spring means symmetrically arranged with respect to said pivot axis and operatively connected on on the one hand to said pivot means and on the other hand to said swing member for yieldably resisting turning of said swing member and toe clamp therewith about said axis to a position releasing a ski boot, said pair of spring means coacting with said pivot means and swing member for increasing the resistance to turning of said swing member about said pivot axis from an initial neutral position only through a predetermined angular increment and for then providing no increase in resistance to turning of said swing member about said axis when said swing member turns beyond said initial increment of turning, a pair of plates being hinged to each other for swinging movement about an axis extending transversely of the ski, one of said plates being fixed to the ski and the other of said plates carrying said pivot means.
Claim 11
Dependent Claim
241 words
In a safety ski-binding, a ski having an upper surface, pivot means defining a pivot axis which in at least one position of said pivot means extends perpendicularly with respect to said upper surface, a swing member carried by said pivot means for free swinging movement about said pivot axis, a toe clamp carried by said swing member for movement therewith and adapted to engage the toe of a ski boot for releasably clamping the latter to the ski, and a pair of spring means symmetrically arranged with respect to said pivot axis and operatively connected on on the one hand to said pivot means and on the other hand to said swing member for yieldably resisting turning of said swing member and toe clamp therewith about said axis to a position releasing a ski boot, said pair of spring means coacting with said pivot means and swing member for increasing the resistance to turning of said swing member about said pivot axis from an initial neutral position only through a predetermined angular increment and for then providing no increase in resistance to turning of said swing member about said axis when said swing member turns beyond said initial increment of turning, a pair of plates being hinged to each other for swinging movement about an axis extending transversely of the ski, one of said plates being fixed to the ski and the other of said plates carrying said pivot means.
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |