US3532352A - Ski safety heel binding - Google Patents

Ski safety heel binding Download PDF

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Publication number
US3532352A
US3532352A US742219A US3532352DA US3532352A US 3532352 A US3532352 A US 3532352A US 742219 A US742219 A US 742219A US 3532352D A US3532352D A US 3532352DA US 3532352 A US3532352 A US 3532352A
Authority
US
United States
Prior art keywords
lever
ski
heel
base plate
binding
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
US742219A
Other languages
English (en)
Inventor
Robert Lusser
Heinz Wagner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LUSSER AND CO SKI SICHERHEITSBINDUNGEN KG GmbH
Lusser GmbH and Co
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3532352A publication Critical patent/US3532352A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0841—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable with a single jaw
    • A63C9/0842—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable with a single jaw the jaw pivoting on the body or base 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
    • 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
    • A63C9/086—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings using parts which are fixed on the shoe of the user and are releasable from the ski binding
    • 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
    • A63C9/005—Ski bindings with means for adjusting the position of a shoe holder or of the complete binding relative to the ski

Definitions

  • a ski safety heel binding has a guide lever swingably mounted on the ski in a perpendicular horizontal plane and a pressure element connected to the free end of the lever for movement in the same plane presses obliquely from the rear and above to the front and below on the ski boots heel.
  • a selection lever is pivotably attached to the guide lever in the above plane between two stops and spring means is secured to the section lever and the ski.
  • the pivotal point of the selection lever lies between the connecting lines of the securing point of the spring and two end positions of its free end.
  • the pressure element has a projection which extends beyond the free end of the guide lever and serves as a front stop for the selection lever.
  • the invention relates to a ski safety heel binding provided with a guide lever assemblage mounted for swinging or pivoting movement on the ski in a prependicular longitudinal plane, a pressure element on the free end of the assemblage which presses from the rear top portion to the front bottom portion on the heel of the ski boot,
  • a ski safety binding of this design is shown in German Pat. No. 1,182,993 of the applicant.
  • a support for example, a safety jaw of a known design
  • the pressure element of the heel binding firmly downward against the ski as long as the selection lever asumes its front end position provided for starting of the run. If, in the case of a forward fall of the skier, the force which is directed upwardly from the heel and transferred to the pressure element, exceeds a certain limit which corresponds to a still permissible load on the leg of the skier, the guide lever assemblage is swung upwardly counter to the effect of the spring anchored on the ski.
  • the selection lever At the same time, it carries along the selection lever and brings it into a position where its free end, engaged by the spring, lies on the connecting line between the anchoring point of the spring and the pivotal point of the selection lever. From this position, the selection lever will automatically jump into its rear end position under action of the above-mentioned spring, in which the force of the spring has only a very much lesser momentum in relation to the pivotal axis of the guide lever assemblage and, correspondingly, is able merely to produce a relatively small force of the pressure element, directed obliquely forwardly and downwardly, which is no longer dangerous for the leg of the skier.
  • the heel of the ski boot therefore can be swung upwardly against United- States Patent 3,532,352 Patented Oct. 6, 1970 'ice a relatively small resistance up to a point, until the pressure element assumes an essentially horizontal position in which it is easily released from the heel in the case of a fall and thus completely frees the ski boot.
  • the rear position of the selection lever is also selected for ascent with climbing furs or skins and for the long distance run.
  • the pressure element at the same time can be swung within a wide range upwardly against the effect of an additional spring, through which, according to applicants German Pat. No. 1,204,984, it has 'been connected with the guide lever assemblage at a distance from its articulation point and vis-a-vis the arm, so that the heel of the ski boot can be sufiiciently lifted from the ski.
  • the front position of the selection lever is determined by a stop which has been developed on the guide lever assemblage per se.
  • swings of the pressure element have no influence on the front end position of the selection lever.
  • the additional spring in the normal downhill skiing position of the binding is without tension and will not be under stress even if the heel of the boot presses the pressure element together with the guide lever assemblage so far upwardly in the case of a normal forward fall, until the selection lever jumps from the front to the rear end position. It may be different when the forward fall is connected with a turning fall and the front binding releases the point of the boot prematurely.
  • the ski boot can escape in a forward direction so that the heel in is upwardly directed movement no longer describes an are around the point of the boot, as in the case of a normal forward fall, but moves obliquely forwardly and upwardly.
  • the side of a projection of a pressure element projecting beyond the free end of the guide lever assemblage serves as a front stop for the selection lever.
  • the projection forces the selection lever from its front end position toward the rear in the direction of its dead center position.
  • the projection according to the invention has the further advantage that even slight swings of the pressure element in relation to the guide lever assemblage as occur constantly in a downhill skiing due to the Varying degree of the force transferred from the heel to the pressure element, are transferred to the selection lever in such a manner that the latter likewise executes slight angular movements in relation to the guide lever assemblage which, it is true, are hardly discernable, but which suffice to prevent the selection lever from freezing to the guide lever assemblage or if any freezing may have developed to loosen the same.
  • the projection in the case of the pressure element pointing forwardly, essentially in parallel to the ski projects so far rearwardly that it will force the selection lever backwardly beyond the dead center position, in which its free end lies on the connecting line between the anchoring point of the spring and the pivotal point of the selection lever.
  • FIG. 1 is a side elevational view of a ski safety heel binding according to the invention in downhill skiing;
  • FIG. 2 is a front elevational view of the binding shown in FIG. 1;
  • FIG. 3 is a side elevational view of the same binding in the case of a fall under unfavorable conditions.
  • FIG. 4 is a plan view of the binding illustrated in FIG. 3.
  • a guide plate 3 is attached to a ski 1 by screws or the like 2.
  • a base plate 4 is supported for sliding movement in the longitudinal direction of the ski 1.
  • a reinforcing plate 5 is soldered onto the upper side of the plate 4 and a perpendicular tap hole extends through the plates 5 and 4.
  • An adjusting screw 6 is positioned in the tap hole and the point thereof meshes with one of a plurality of conical indentations or recesses 7 in the guide plate 3 (FIG. 3) in order to hold the plate 4 tfirmly in a position which corresponds to the size of a ski boot 8 that is to be held fastly by the safety binding.
  • a bracket 12 is attached to the rear end of the base plate 4 and projects upwardly therefrom.
  • a guide lever assemblage 14 is swingably or pivotally connected to the upper end of the bracket 12 by means of a hinge bolt or the like 13 in the perpendicular longitudinal plane of the ski 1.
  • the guide lever assemblage 14 is defined by two identically stamped metal parts of strong sheet metal, which extend at a distance in parallelism to one another essentially in a forward direction and which embrace the flattened upper end of the bracket 12 on both sides (FIG. 4).
  • the assemblage arm 14 has a curvature directed downwardly and a selection lever 16, which engages between the two parts of the assemblage 14, is mounted swingably by a hinge bolt 15 at the lowest point of such curvature.
  • the selection lever 16 is provided with a jaw 17 at its upper end and the jaw extends in a transverse direction.
  • the middle portion of a substantially U-shaped stirrup 18 is seated in the jaw 17.
  • a threaded plug 19 is screwed onto each end of the stirrup 18 and carries a spiral tension spring 20. More specifically, a thread is provided on the outside periphery of each threaded plug adapted to the pitch of the spring 20, and on to which the upper windings of the spring are threaded with a radial pre-stress.
  • An eye 21 is located at the lower end of each spring and engages a hook 22 which is bent upwardly and is a part of the reinforcing plate 5.
  • the selection lever 16 together with the stirrup 18 and the springs 20 can be swung from the front end position shown in FIG. 1 into the rear end position illustrated in FIGS. 3 and 4.
  • the plane which contains the longitudinal axes of the springs 20, and thus also the effective lines of the drawing forces of such springs is at a distance behind the bolt 15.
  • the above-mentioned plane lies in front of this hinge bolt 15.
  • a pressure element 24 is swingingly connected at the front end of the guide lever assemblage 14 in the perpendicular longitudinal plane of the ski 1 by means of a hinge or pivot bolt 23.
  • the pressure element 24 extends from the bolt 23 forwardly and downwardly and a hook 25 (FIG. 4) is provided at its lower end.
  • An additional tension spring 26 at one end thereof engages the pressure element 24 between the hinge bolt 23 and the hook 25.
  • the other end of the spring 26 engages an eye 27, consisting of a strong wire, and the eye is articulated to the assemblage 14 in the vicinity of the hinge bolt 15.
  • the front end of the base plate 4 is bent or displaced upwardly and is developed as a fork provided with two prongs 29 open in an upward direction.
  • the pressure element 24 projects from the rear and above to the front and below into the interstice or gap between the two prongs 29, and its hook 25 extends into a fitting 30 attached to the rear of the heel of the ski boot 8.
  • the fitting 30 is approximately the shape of a scoop.
  • the pressure element 24 has a projection 31 at the end remote from the hook 25, and the projection points in a direction opposite to that of the hook and which, (FIG. 1) in downhill skiing, serves as a stop for the selection lever 16.
  • the projection 31 is efficacious for the following:
  • a safety heel binding for skies comprising a guide lever assemblage mounted for pivotal movement in a perpendicular longitudinal plane on a ski, a pressure element connected to the free end of the guide lever assemblage for pivotal movement in the same plane, said pressure element pressing obliquely from the rear and above to the front and below on the heel of a ski boot, a selection lever pivotally mounted on the guide lever assemblage in the perpendicular longitudinal plane between two stops, spring means secured to the selection lever and anchored to the ski serving as a pressure force for the pressure element, the pivotal point of the selection lever lying between the connecting lines of the anchoring point of the spring means with two end positions of the free end of the selection lever, and a projection on the pressure element, said projection serving as a front stop for the extension lever and extending beyond the free end of the guide lever assemblage in such a manner that, in the event of an enlargement of the angle between the guide lever assemblage and the pressure element, the projection forces the selection lever from its front end position towards the rear in the direction of its dead center position
  • a safety heel binding for skis comprising a guide lever assemblage mounted for pivotal movement in a per- 25 pendicular longitudinal plane on a ski, a pressure element connected to the free end of the guide lever assemblage for pivotal movement in the same plane, said pressure element pressing obliquely from the rear and above to the front and below on the heel of a ski boot, a selection lever pivotally mounted on the guide lever assemblage in the perpendicular longitudinal plane between two stops, spring means secured to the selection lever and anchored to the ski serving as a pressure force for the pressure element, the pivotal point of the selection lever lying between the connecting lines of the anchoring point of the spring means with two end positions of the free end of the selection lever, a projection on the pressure element, said projection serving as a front stop for the selection lever and extending beyond the free end of the guide lever assemblage in such a manner that, in the event of an enlargement of the angle between the guide lever assemblage and the pressure element, the projection forces the selection lever from its front end position towards the rear in the direction of its dead

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US742219A 1967-07-03 1968-07-03 Ski safety heel binding Expired - Lifetime US3532352A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671578814 DE1578814A1 (de) 1967-07-03 1967-07-03 Schi-Sicherheits-Fersenbindung

Publications (1)

Publication Number Publication Date
US3532352A true US3532352A (en) 1970-10-06

Family

ID=5679099

Family Applications (1)

Application Number Title Priority Date Filing Date
US742219A Expired - Lifetime US3532352A (en) 1967-07-03 1968-07-03 Ski safety heel binding

Country Status (5)

Country Link
US (1) US3532352A (enExample)
CH (1) CH479319A (enExample)
DE (1) DE1578814A1 (enExample)
FR (1) FR1575962A (enExample)
GB (1) GB1227823A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897075A (en) * 1972-11-07 1975-07-29 Robert C Cutter Releasible binder
US4035001A (en) * 1975-02-07 1977-07-12 Hannes Marker Heel tightener for safety ski-bindings
US4219215A (en) * 1976-09-25 1980-08-26 Vereinigte Baubeschlagfabriken Gretsch & Co. Gmbh Cross-country ski bindng with retaining means for a forwardly extended boot sole

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129951A (en) * 1966-10-21 1964-04-21 Lusser Robert Safety ski bindings

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3129951A (en) * 1966-10-21 1964-04-21 Lusser Robert Safety ski bindings

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897075A (en) * 1972-11-07 1975-07-29 Robert C Cutter Releasible binder
US4035001A (en) * 1975-02-07 1977-07-12 Hannes Marker Heel tightener for safety ski-bindings
US4219215A (en) * 1976-09-25 1980-08-26 Vereinigte Baubeschlagfabriken Gretsch & Co. Gmbh Cross-country ski bindng with retaining means for a forwardly extended boot sole

Also Published As

Publication number Publication date
GB1227823A (enExample) 1971-04-07
CH479319A (de) 1969-10-15
FR1575962A (enExample) 1969-07-25
DE1578814A1 (de) 1971-11-11

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