US3627341A - Front safety binding for a ski - Google Patents

Front safety binding for a ski Download PDF

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Publication number
US3627341A
US3627341A US9165A US3627341DA US3627341A US 3627341 A US3627341 A US 3627341A US 9165 A US9165 A US 9165A US 3627341D A US3627341D A US 3627341DA US 3627341 A US3627341 A US 3627341A
Authority
US
United States
Prior art keywords
ski
boot
arms
toe
jaws
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
US9165A
Other languages
English (en)
Inventor
Robert Lusser
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.)
Marker International Co
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 US3627341A publication Critical patent/US3627341A/en
Assigned to MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH., A SWISS CORP. reassignment MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH., A SWISS CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MARKER, HANNES
Assigned to MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH reassignment MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HANNES MARKER SICHERHEITS- SKIBINDUNGEN KG.
Assigned to MARKER INTERNATIONAL COMPANY reassignment MARKER INTERNATIONAL COMPANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MARKER-PATENTVERWERTUNGSGELLSCHAFT GMBH
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
    • A63C9/001—Anti-friction devices
    • 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
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08507—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a plurality of mobile jaws
    • A63C9/08521—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable with a plurality of mobile jaws pivoting about a vertical axis, e.g. side release
    • 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
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08557—Details of the release mechanism
    • A63C9/08585—Details of the release mechanism using transverse biasing element

Definitions

  • This invention is an improvement on the front safety binding for skis as described in the US. Pat. No. 3,329,438 and in this patent there is disclosed a front binding for a safety binding for skis provided with two rearwardly diverging jaws which, in their normal position, serve as a front installation for a sole of the ski boot and such jaws are arranged on two independent swingable arms, which, when exceeding a predetermined torsional force against the resistance of a spring about a point of rotation located forwardly of the toe of the ski boot, can be moved laterally so far from a stop mounted on the ski between the arms until the toe of the boot is released from the outwardly swung jaws.
  • the swingable arms are connected via the spring means in such a manner that in every swingable position the arms are subjected to the resiliency of the spring.
  • safety front bindings are normally combined with safety heel bindings which release the heel of the boot as soon as the upwardly exerting force thereon exceeds a certain degree.
  • safety heel bindings which release the heel of the boot as soon as the upwardly exerting force thereon exceeds a certain degree.
  • diagonal falls special problems can develop such as the retaining forces of the front binding and the heel binding not being correctly balanced with respect to each other, the distance between both bindings not being correctly adjusted, or the sole of the ski boot being deformed by the force exerted through a fall in such a fashion that the release of the heel binding is delayed.
  • the object of this invention is to make independent the effect of a safety front binding for a ski of the above type from the forwardly directed thrust occurring during diagonal falls and this is particularly applicable to a front binding according to the above-mentioned patent. It should be pointed out that with such a binding it is particularly important to prevent additional thrusts of unforeseeable magnitude operating against the lateral movement of the toe of the boot from superposing themselves upon the resiliency of the spring encountered in each swinging position of the jaw-carrying arms.
  • the above-described object for a safety front binding for a ski of the above-discussed construction is achieved in that the stop plate, at its rear surface, is provided with a support of any material which, in combination with the material of the toe portion of the boot possesses a coefficient of friction which is less than the coefiicient of friction of the stop plate per se.
  • the support when viewed in section parallel to the ski surface, possesses a convex curvature.
  • the mounting of the support is particularly simple in construction and reliable in operation in that such support is defined by a mushroom-shaped component, preferably consisting of tetrafluoroethylene, having a stem portion anchored in an aperture provided in the stop plate.
  • FIG. 1 is a fragmentary plan view of a front binding embodying the present invention for securing a ski boot to a ski,
  • FIG. 2 is a fragmentary side view, partly in section, of the binding illustrated in FIG. 1, and
  • FIG. 3 is a view taken along the line III-III of FIG. 2 the view looking in the direction of the arrow.
  • the present safety front binding includes a baseplate 2 preferably of stainless steel which is secured to the upper or top surface of a ski l by suitable means such as screws.
  • a baseplate 2 preferably of stainless steel which is secured to the upper or top surface of a ski l by suitable means such as screws.
  • two upwardly extending spaced-apart sockets 3 and 4 which may be riveted to the plate 2.
  • Swingable arms 5 and 6, respectively are mounted in the sockets 3 and 4 and extend substantially rearwardly therefrom, and the front ends of the arms are bent to define a right angle with the baseplate 2.
  • the swingable arms 5 and 6 are preferably of round steel and the rear portions of the arms are formed with inwardly directed offsets 9 and 10, respectively, and from such offsets extend jaws I1 and 12, respectively, parallel to the plane of the plate 2 in a rearward and outward direction. It will be noted that the entire front binding is symmetrical with reference to symmetrical plane 13 of the ski.
  • the swingable arms 5 and 6 are interconnected by a helical tension spring, 14 and the respective ends of the springs denoted l5 and 16 are in the nature of hooks which engage a notch on the outside of each swinging arm.
  • the spring 14 maintains the arms 5 and 6 under a substantial initial tension of, for example, 10 kg., against a stop 19.
  • the stop 19 is formed by bending the rear end of the baseplate 2 upwardly perpendicularly to the plane of the plate 2 at a point rearwardly of the spring 14.
  • the stop 19 is provided with outwardly extending arms or guide means 23 and 24 under which the offsets 9 and 10 of the arms are guided during swinging movement.
  • the stop 19 is provided with a centrally arranged aperture in which a mushroom-shaped component 20 is anchored.
  • the component 20 is of tetrafluoroethylene and it will be appreciated that the convex head of the component 20 constitutes a rearwardly directed supporting surface.
  • the jaws 11 and 12 may be provided with coverings of a material such as tetrafiuoroethylene and the jaws retain the toe of a ski boot 25 in such as fashion, as illustrated in FIG. 1 in solid lines, that the jaws grasp the front edge of a sole 26 of the boot on both sides of the symmetrical plane 13 and rest against a boot toe cap 27.
  • the ski boot 25 is additionally secured at its heel portion by a heel binding (not illustrated).
  • the front edge of the sole 26 normally is arranged against the part 20 at a notable distance therefrom since the jaws II and 12 are supposed to constitute the only forward support point of the ski boot. This is also true for a normal releasing operation during which the toe of the boot, as shown in FIG. 1 in dotndash lines, executes only a laterally directed swinging movement with the point of rotation thereof lying within the range of the heel of the boot held in place by the heel binding.
  • the sole of the boot does not support itself with its forward edge on the stop 19 per se but, rather, on the mushroom-shaped component 20 whose slight coefficient of friction ensures that the lateral outwardly directed movement of the toe of the boot cannot be appreciably hindered by frictional forces existing between the toe of the boot and the stop of the front binding.
  • a front ski safety binding of the type comprising: two arms extending substantially longitudinally of the ski means swingably mounting each arm adjacent one end thereof to the ski for movement in a plane substantially parallel to the upper surface of the ski; two jaws one each at the free end of each arm extending outwardly with respect to the plane of symmetry of the ski, said jaws constituting the only nonnal forward support for an associated ski boot; a fixed stop on the ski intermediate the means swingably mounting the arms to the ski and the jaws for coaction with the arms spring means interconnecting the arms for normally maintaining the jaws in engagement with the toe of the ski boot, said arms being swingable laterally from the stop when exceeding a predetermined swinging force against the action of the spring means about a center of rotation located forwardly of the toe of the ski boot until the boot is freed from the outwardly swung jaws, the improvement being in that said fixed stop includes a rearwardly projected stationary support of a material having a lesser coefficient of friction with respect to the toe of the ski boot than the fixed stop

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US9165A 1969-02-07 1970-02-06 Front safety binding for a ski Expired - Lifetime US3627341A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1906224A DE1906224C3 (de) 1969-02-07 1969-02-07 Vorderer Bindungsteil

Publications (1)

Publication Number Publication Date
US3627341A true US3627341A (en) 1971-12-14

Family

ID=5724647

Family Applications (1)

Application Number Title Priority Date Filing Date
US9165A Expired - Lifetime US3627341A (en) 1969-02-07 1970-02-06 Front safety binding for a ski

Country Status (7)

Country Link
US (1) US3627341A (de)
JP (1) JPS4923867B1 (de)
AT (1) AT300633B (de)
CA (1) CA940158A (de)
DE (1) DE1906224C3 (de)
ES (1) ES376599A2 (de)
YU (1) YU32429B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017098A (en) * 1974-09-07 1977-04-12 Bernhard Kirsch Safety bindings for skis

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH392349A (fr) * 1962-06-01 1965-05-15 Alfred Beyl Jean Joseph Dispositif de fixation de sécurité pour ski

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017098A (en) * 1974-09-07 1977-04-12 Bernhard Kirsch Safety bindings for skis

Also Published As

Publication number Publication date
DE1906224A1 (de) 1970-08-27
ES376599A2 (es) 1976-07-01
JPS4923867B1 (de) 1974-06-19
YU29270A (en) 1974-04-30
CA940158A (en) 1974-01-15
DE1906224C3 (de) 1981-05-07
AT300633B (de) 1972-08-10
YU32429B (en) 1974-10-31
DE1906224B2 (de) 1980-07-10

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Legal Events

Date Code Title Description
AS Assignment

Owner name: MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH., BAAR, S

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MARKER, HANNES;REEL/FRAME:004089/0014

Effective date: 19820804

AS Assignment

Owner name: MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH, SWITZERL

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HANNES MARKER SICHERHEITS- SKIBINDUNGEN KG.;REEL/FRAME:004156/0161

Effective date: 19820811

Owner name: MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH, BAAR, SW

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:HANNES MARKER SICHERHEITS- SKIBINDUNGEN KG.;REEL/FRAME:004156/0161

Effective date: 19820811

AS Assignment

Owner name: MARKER INTERNATIONAL COMPANY,UTAH

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MARKER-PATENTVERWERTUNGSGELLSCHAFT GMBH;REEL/FRAME:004906/0245

Effective date: 19880331

Owner name: MARKER INTERNATIONAL COMPANY, P.O. BOX 26548, SALT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MARKER-PATENTVERWERTUNGSGELLSCHAFT GMBH;REEL/FRAME:004906/0245

Effective date: 19880331