US3727935A - Releasable heel reatiner - Google Patents

Releasable heel reatiner Download PDF

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Publication number
US3727935A
US3727935A US00149215A US3727935DA US3727935A US 3727935 A US3727935 A US 3727935A US 00149215 A US00149215 A US 00149215A US 3727935D A US3727935D A US 3727935DA US 3727935 A US3727935 A US 3727935A
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US
United States
Prior art keywords
housing
spring
crank
accordance
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00149215A
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English (en)
Inventor
P Unger
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Individual
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Individual
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Filing date
Publication date
Priority claimed from DE19702027412 external-priority patent/DE2027412C3/de
Application filed by Individual filed Critical Individual
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Publication of US3727935A publication Critical patent/US3727935A/en
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Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0844—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable the body pivoting about a transverse axis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/0805—Adjustment of the toe or heel holders; Indicators therefor
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0846—Details of the release or step-in mechanism
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0847—Details of the manual release

Definitions

  • ABSTRACT Releasable heel retainer for a ski binding that is provided on the base portion secured to the ski pivotally mounted for movement about a horizontal axis that extends longitudinally of the ski and the housing of which carries a sole holder, where inside the housing a release is disposed that acts against spring effect and causes the release of the ski boot under excessive load, which housing is displaceably journalled and supported on the base at the end remote from the sole retainer so that there results a slide crank type connection of the housing on the base, and displaceable mounting of the housing on the base is in the form of a guide means that protects the housing against rising from the base, and where furthermore a means is provided that is releasable manually or by a foot-step that fixes the open position of the retainer, and which heel retainer includes'the improvement of the arrangement serving as the crank pivotally engaging the spring and this linkage slidingly engages a curved slot of the base
  • the invention concerns a releasable heel retainer for a ski binding which is disposed on the base portion fastened to the ski and arranged for pivotal movement about an axis disposed horizontally and transversely of the longitudinal extent of the ski.
  • the housing carries a sole holder, while inside the housing a release means is provided that acts against aspring which effects release of the ski boot when excessively loaded.
  • the housing is displaceably journalled and supported on the base member at its end that is remote from the sole retaining part, so that there results a sliding crank type linkage of the housing on the base member and the displaceable mounting of the housing on the base member is in the form of guide means which secure the housing against rising from the base portion. Furthermore, releasable means are provided that secure the open position of the retainer manually or by foot-step. Owing to the shape of the push crank type linkage the sole holding portion may move along the same path out of retaining position into release position and vice versa. Advantageously the housing remains in the open position after release, from which it may be returned at any time into retaining position by the skier. Unintentional rocking of the housing about its point of linkage on the base portion is avoided.
  • a heel. retainer of the type described is to be constructed in such a manner that it does not possess the shortcomings explained above. Furthermore, in accordance with the invention the shock absorbing effect of the heel retainer is to be as great as possible. For this purpose a construction and arrangement is preferred that is corrosion-proof and independent of weather, not only as far as the release means are concerned but also the shock absorbing element, particularly the spring.
  • an arrangement serving as crank means is in pivotal engagement with the spring and that this connection slidingly engages a curved guide of the base portion while the curved guide rises upwardly in the direction toward the sole holder, and the linkage of the crank which is secured to the housing is disposed in a known manner ahead of the linkage of the crank at the base portion that is secured to the ski.
  • Designing this curved guide in this manner also changes the effective retaining force as the sole holding part moves upwardly.
  • the curved guide may be so designed that the effective retaining force remains constant over the entire rising thrust, or at least over a part of the thrust.
  • a design is also possible of the'type that the effective retaining force increases during the course of the release movement, i.e., it is progressive.
  • it is possible by means of relatively simple structural changes to impart to the heel retainer the retaining force that is desired for the particular stages of the release movement.
  • the heel retainer resides in that it does not have any rapidly wearing eccentric sliding ratchets or the like; for the pivot joint connections as well as also the shock absorbing means of the shock absorber which is preferably provided are practically proof against wear. Also during release it is not necessary to overcome any frictional forces of a friction latch support. Moreover, this heel retainer can practically not be affected by weather because the spring can be enclosed and joint parts necessary for the release .are non-sensitive against the effects of weather.
  • the invention also provides for housing of .the shock absorbing means to protect them against weather conditions.
  • FIG. I shows a heel retainer constructed in accordance with the invention partly in longitudinal section and in latched position
  • FIG. 2 shows the heel retainer in accordance with FIG. 1 but in released position
  • FIG. 3 is a partial section along line A-B in FIG. 1, and 1 FIGS. 4 and 5 are illustrations of parts.
  • the heel retainer is mounted by means of its base member 1 on a ski, which is not illustrated. In the latched position it grips the rearward sole edge at the heel by means of sole retaining member 4 and thus firmly holds the ski boot.
  • the crank 2 is pivotally connected to the linkage point A1 of the base member 1 and is also pivotally connected at A2 with housing 3 of the heel retainer.
  • the arrangement is such that the linkage or connecting point A2 is located between linkage point A1 and the sole retaining member 4.
  • the linkage connections A1, A2 may be in the form of pins or rivets.
  • the housing 3, which may also have a stepping spur 5, is slidably journalled and supported at its end remote from the sole retaining member 4 by pins or projections 6 or the like in lateral guide slots 7 of the base member that is secured to the ski.
  • pins or projections 6 or the like in lateral guide slots 7 of the base member that is secured to the ski.
  • the linkage points A1, A2 may be provided at the same height or level, but their levels may also differ. In that case it is advisable that the linkage point A2 is higher than linkage point Al, an arrangement which is not illustrated.
  • This provides a push crank together with the rearward guiding slide 7, with the effect that under load, inclusive of shocks or forces acting rearwardly longitudinally of the ski, the sole retaining member 4 moves along a flat arcuate path.
  • the guiding slot in the fixed base not oblique but horizontal, as indicated in dashed lines at 7' in FIG. 4.
  • the pin 6 when in latching position will be proximate the forward end of the slot 7' and will move rearwardly when subjected to loads.
  • the present invention can also be realized successfully with the special construction of such a push crank arrangement described above.
  • the crank 2 is furthermore pivotally connected with the spring 8 of the boot retainer.
  • a linkage 9 is provided between the crank 2 and the forward end of the housing 10 that is disposed around the spring.
  • This linkage slides in an arcuate guiding slot 11 of the base fixed to the ski.
  • the guiding slot 11 rises upwardly in the direction of the sole retaining member 4.
  • the magnitude of the retaining force effective on the retaining member 4 along the course of the raising and release movement can be varied by the shape of the slot.
  • the guiding slot has a substantially horizontal portion 11 in which the link member 9 is guided during the initial release movement.
  • the linkage points A1, A2 and 9 of the crank are arranged in a triangle where the retaining position of the points of linkage Al, A2 may be above the joint 9.
  • the joint 9 is disposed in released position above the point Al in accordance with numeral 9'.
  • the release means assume the position beyond dead point.
  • crank 2 moves along with the rocking movement of the housing 3 of the binding about the pins 6.
  • crank 2 is pivotally connected with the housing 3 and the base 1, it is subjected to a relative displacement with respect to the spring housing 10 as the housing 3 swings upwardly.
  • the effective eccentricity of the curved guide 11 must be compensated. This may be achieved in that the crank 2 encompasses the pivot 9 with tolerance, for example by means ofa slot 13 (FIG. 5).
  • the effect is such that with the release, point A2 rocks about point Al and simultaneously rearwardly. Thereby the sole holder portion 4 is moved upwardly and rearwardly through a corresponding arc.
  • crank and its linkages or joints may be of different form. It may be triangular as illustrated and consist of two parts 2a, 2b (FIG. 3) which are connected by way of joint rivets 14 to the lateral cheeks 15 of the base member 1. Slots provided in the cheeks 15 serve as curved guide means (1 1).
  • the crank 2 could also be in the form of an elongated rocking member whose forwardly directed end supports the sole retainer (not illustrated).
  • the sole retaining part must not absolutely be fixed to the housing, but it can also be pivotally connected thereto.
  • the crank member carrying it is in that event pivotally connected to the jaws 15 and to the housing.
  • the opening (or closing) of the retainer provides for an additional opening (or closing) of the angle (or mouth) defined by the retaining part 4 and the stepping spur 5.
  • the crank 2 may be prolonged in order to provide a manual release.
  • a release lever 24 that can be operated manually or with the tip of the ski pole.
  • Lever 24 passes through an aperture 25 in the housing of the binding and is pivotally connected, for example, at the linkage point A2. If the lever 24 is pressed down, then it engages crank 2 in a manner not illustrated, rocks the crank about the linkage point A1, and this effects the release movement described above. The same effect is obtained if an upwardly directed sufficiently large force is applied by the heel of the boot against the sole retaining part 4.
  • spring 8 tends to pull the pivot 9 toward the rearward end of the heel retainer, i.e., to swing the crank 2 in counterclockwise direction and thereby against the release movement about the linkage point A1. In this manner the holding member 4 is pressed with the required force against the edge of the sole of the boot.
  • spring 8 is in the form of a pressure spring. It rests at one end against the end 16 of the spring housing 10 and at the other end against a collar 17 of a draw bar 18 which extends through the spring. The drawbar 18 extends through the end surface 16 and is displaceable with respect to the spring housing.
  • This arrangement may also be constructed as a shock absorber where the collar 17 serves as piston and the wall of the spring housing as cylinder.
  • the shock absorbing may either be by means of friction between cylinder and piston, or also in that there is a shock absorbing agent such as oil or grease, and the collar has openings for the passage of this agent.
  • the spring housing may be a structural unit and thus may be realized in a structurally simple manner.
  • the grease or oil serves as an additional protecting agent for the spring against corrosion. This advantage of the weather protected housing of the spring is enhanced in that its guidance in the housing is safeguarded against lateral displacement or bending.
  • a set screw 19 serves for this purpose, which is rotatable in the end wall 20 of housing 3 and journalled against displacement in its longitudinal direction, while its end 21 engages a corresponding thread in the drawbar. By turning the screw 19, the drawbar can be adjusted in longitudinal direction, and thus the force of compression of spring 8 may be changed.
  • an indicator 22 is securely mounted which indicates the setting through a viewing opening 23.
  • Releasable heel retaining device for a ski binding comprising a supporting base to be mounted on a ski and including an outer housing having a front end provided with a sole retainer, stationary pivot members on said base defining a horizontally disposed axis extending transversely of the longitudinal extent of the ski, said outer housing enclosing release means including spring means operative in response to excessive pressure to release a ski boot, crank means supported on said base by said stationary pivot members proximate said front end of said outer housing, a guiding slot in said base proximate said crank means securing said outer housing against rising and defining the upper limit of movement for said outer housing, a link member extending from said spring means into said guiding slot, pivot pin means extending between said crank and said outer housing, a sliding slot in said base proximate the rearward end of said device, and a guided member extending between said outer housing and said sliding slot, said pivot members, said link member and said pivot pin means being disposed on said crank means in positions defining a triangle.
  • crank encompasses said link member with tolerance proximate said spring by means of a slot.
  • Heel retainer in accordance with claim 1, including a spring housing for said spring, said crank pivotally engaging said outer housing, and said spring housing being pivotally movable upwardly together with said outer housing.
  • Heel retainer in accordance with claim 9, where said drawbar has a projecting end and supports an indicator and said outer housing has a viewing aperture proximate said indicator.
  • Heel retainer in accordance with claim 1, including a release lever connected to said crank.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US00149215A 1970-06-04 1971-06-02 Releasable heel reatiner Expired - Lifetime US3727935A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702027412 DE2027412C3 (de) 1965-03-17 1970-06-04 Auslösender Fersenniederhalter für eine Skibindung

Publications (1)

Publication Number Publication Date
US3727935A true US3727935A (en) 1973-04-17

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ID=5772986

Family Applications (1)

Application Number Title Priority Date Filing Date
US00149215A Expired - Lifetime US3727935A (en) 1970-06-04 1971-06-02 Releasable heel reatiner

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US (1) US3727935A (de)
AT (1) AT307290B (de)
CH (1) CH568080A5 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830510A (en) * 1971-10-27 1974-08-20 Wyss S Releasable heel holddown mechanism for ski bindings
US3873109A (en) * 1972-03-08 1975-03-25 Paul Unger Releasable heel hold-down device for a ski
JPS50122342A (de) * 1974-03-08 1975-09-25
US4066277A (en) * 1976-07-19 1978-01-03 Hope Co., Ltd. Ski boot heel binding having improved unlocking device
US4111453A (en) * 1975-12-19 1978-09-05 Tmc Corporation Release binding
US11491388B2 (en) * 2020-02-27 2022-11-08 Salomon S.A.S. Binding toe-piece for gliding board

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT375268B (de) * 1982-10-08 1984-07-25 Tyrolia Freizeitgeraete Fersenniederhalter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291500A (en) * 1964-04-14 1966-12-13 Ver Baubeschlag Gretsch Co Heel-holding device for ski safety binding
US3317217A (en) * 1965-03-01 1967-05-02 Wunder Kg Heinrich Heel downholder for cableless safety ski bindings
US3473816A (en) * 1966-08-27 1969-10-21 Paul Unger Step in safety binding for ski
US3476401A (en) * 1967-04-21 1969-11-04 Paul Unger Safety binding for ski
US3608918A (en) * 1968-06-11 1971-09-28 Marker Hannes Heel-holding device for safety ski bindings

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291500A (en) * 1964-04-14 1966-12-13 Ver Baubeschlag Gretsch Co Heel-holding device for ski safety binding
US3317217A (en) * 1965-03-01 1967-05-02 Wunder Kg Heinrich Heel downholder for cableless safety ski bindings
US3473816A (en) * 1966-08-27 1969-10-21 Paul Unger Step in safety binding for ski
US3476401A (en) * 1967-04-21 1969-11-04 Paul Unger Safety binding for ski
US3608918A (en) * 1968-06-11 1971-09-28 Marker Hannes Heel-holding device for safety ski bindings

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830510A (en) * 1971-10-27 1974-08-20 Wyss S Releasable heel holddown mechanism for ski bindings
US3873109A (en) * 1972-03-08 1975-03-25 Paul Unger Releasable heel hold-down device for a ski
JPS50122342A (de) * 1974-03-08 1975-09-25
JPS5529710B2 (de) * 1974-03-08 1980-08-05
US4111453A (en) * 1975-12-19 1978-09-05 Tmc Corporation Release binding
US4066277A (en) * 1976-07-19 1978-01-03 Hope Co., Ltd. Ski boot heel binding having improved unlocking device
US11491388B2 (en) * 2020-02-27 2022-11-08 Salomon S.A.S. Binding toe-piece for gliding board

Also Published As

Publication number Publication date
CH568080A5 (de) 1975-10-31
AT307290B (de) 1973-05-10

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