Patent US3612561A successfully refreshed from Google Patents.
US3612561A
Expired / Lapsed
US
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Heel-holding device for safety ski bindings
Assignee: Marker International Co
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Filing: 1969-10-01
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Granted: 1971-10-12
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Expires: 1989-10-01
Abstract
Abstract A carrying member for a soleholder is biased by a spring. A heel-holding device is adapted to automatically assume a locking position in response to the introduction of a skiing boot and to be opened arbitrarily, for example, by the application of a slight pressure with the ski pole on a release member, or automatically in response to an excessive tensile force acting substantially in an upward vertical direction. The carrying member forms a coupler link of a four-bar linkage, which has two cranks of equal length, to which the carrying member is pivotally connected and which are pivoted in a housing on horizontal transverse axes spaced the same distance apart as the pivotal axes of the carrying member. The transverse axes lie in the housing in an approximately horizontal plane. The spring acts on the carrying member by the crank which is remote from the soleholder. The pivot connecting the carrying member to that crank forms also the pivot for the carrying member during a second phase of movement, the second phase serves to open the device and succeeds a first phase of movement, in which the carrying member moves parallel to itself.
Inventors
- 👤 Hannes Marker
- 👤 Ludwig Axthammer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:37
CPC Classifications
A; A63; A63C; A63C9/00; A63C9/08; A63C9/084; A63C9/0847; A63C9/0841; A63C9/0842; A63C9/0846; A63C9/005; A63C9/0805
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
167 words
A heel-holding device particularly for safety ski bindings, which device comprises: a housinG; a soleholder mounted on said housing; first and second crank bars of equal length pivotally connected to said housing on horizontal transverse crank bars, the distance between the respective pivotal connections of said carrying member and said crank bars being equal to the distance between said horizontal transverse axes; biasing means associated with said carrying member and providing a biasing force therefor; wherein said transverse axes lie in a substantially horizontal plane; wherein said biasing means acts on the carrying member through said first crank bar; wherein the pivotal connection of the carrying member and said first crank bar defines a pivot for the carrying member during a second phase of movement thereof; wherein a first phase of movement of the carrying member is of such a nature that each region thereof remains parallel to itself; and wherein said second phase of movement succeeds the first phase and serves to open the heel-holding device.
Claim 2
Dependent Claim
167 words
A heel-holding device particularly for safety ski bindings, which device comprises: a housinG; a soleholder mounted on said housing; first and second crank bars of equal length pivotally connected to said housing on horizontal transverse crank bars, the distance between the respective pivotal connections of said carrying member and said crank bars being equal to the distance between said horizontal transverse axes; biasing means associated with said carrying member and providing a biasing force therefor; wherein said transverse axes lie in a substantially horizontal plane; wherein said biasing means acts on the carrying member through said first crank bar; wherein the pivotal connection of the carrying member and said first crank bar defines a pivot for the carrying member during a second phase of movement thereof; wherein a first phase of movement of the carrying member is of such a nature that each region thereof remains parallel to itself; and wherein said second phase of movement succeeds the first phase and serves to open the heel-holding device.
Claim 3
Dependent Claim
33 words
A heel-holding device according to claim 14, wherein said first crank bar consists of one arm of a bellcrank lever and wherein said biasing means acts on the other arm of said lever.
Claim 4
Dependent Claim
37 words
A heel-holding device according to claim 14, wherein one end of the biasing means is held at an abutment which is fixed to the housing and is adjustable for varying the initial stress of the biasing means.
Claim 5
Dependent Claim
47 words
A heel-holding device according to claim 3, wherein said biasing means is fitted on a screw rotatably and axially nondisplaceably mounted in the housing and carrying a nut held against rotation in the housing, and wherein one end of the biasing means is held at the nut.
Claim 6
Dependent Claim
31 words
A heel-holding device according to claim 4, wherein the nut carries a pointer, which during a displacement of the nut moves in the housing along a scale provided on the housing.
Claim 7
Dependent Claim
87 words
A heel-holding device according to claim 1, wherein said biasing means is in the form of a helical compression spring oriented approximately horizontal and mounted in the housing of an axis which extends in the longitudinal direction of the ski, wherein the spring extends away from the soleholder beyond the crank bars, further comprising a cage for accommodating the pressure-exerting end of the spring, and wherein the spring cage is coupled to the second crank bar at least when the heel-holding device is in its locked position.
Claim 8
Dependent Claim
31 words
A heel-holding device according to claim 1, wherein the spring cage bears on the housing when the heel-holding device is in its locked position and when it has been arbitrarily unlocked.
Claim 9
Dependent Claim
22 words
A heel-holding device according to claim 7, wherein the spring cage is pivotally mounted in the housing on a horizontal transverse depression.
Claim 10
Dependent Claim
24 words
A heel-holding device according to claim 7 and further comprising an actuating handle serving to disconnect the spring cage from said first crank bar.
Claim 11
Dependent Claim
33 words
A heel-holding device according to claim 9, wherein the actuating handle consists of a pivoted lever, which is mounted in the housing on the same axis as is mounted said first crank bar.
Claim 12
Dependent Claim
40 words
A heel-holding device according to claim 1, wherein the housing is held for displacement in the longitudinal direction of the ski on a baseplate fixed to the ski and wherein a spring is interposed between the housing and the baseplate.
Claim 13
Dependent Claim
56 words
A heel-holding device according to claim 1, and further comprising a closing lever having a free end portion which forms a pedal, wherein said closing lever is pivoted in the housing on a horizontal transverse axis and wherein the closing lever is longitudinally slidably mounted in a bearing provided on the carrying member for the soleholder.
Claim 14
Dependent Claim
24 words
A heel-holding device according to claim 12, wherein the closing lever is mounted in the housing on the first axis as the crank bar.
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |