US3582099A - Toe iron for safety ski bindings - Google Patents

Toe iron for safety ski bindings Download PDF

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Publication number
US3582099A
US3582099A US787103A US3582099DA US3582099A US 3582099 A US3582099 A US 3582099A US 787103 A US787103 A US 787103A US 3582099D A US3582099D A US 3582099DA US 3582099 A US3582099 A US 3582099A
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US
United States
Prior art keywords
toe iron
ski
soleholder
radius
boot
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
US787103A
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English (en)
Inventor
Hannes Marker
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
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 US3582099A publication Critical patent/US3582099A/en
Assigned to MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH., A SWISS CORP. reassignment MARKER-PATENTVERWERTUNGSGESELLSCHAFT MBH., A SWISS CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MARKER, HANNES
Anticipated expiration legal-status Critical
Assigned to MARKER INTERNATIONAL COMPANY reassignment MARKER INTERNATIONAL COMPANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MARKER-PATENTVERWERTUNGSGELLSCHAFT GMBH
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
    • A63C9/085—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with sole hold-downs, e.g. swingable
    • A63C9/08535—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 mobile body or base or single jaw
    • A63C9/0855—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 mobile body or base or single jaw pivoting about a vertical 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
    • A63C9/001—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
    • 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

Definitions

  • This invention relates to a toe iron for safety ski bindings, in which toe irons comprising a soleholder member for engaging the forward edge portion of the sole of the boot from above are mounted on the ski for movement toward the tip of the ski.
  • the toe iron is either pivoted on a pivot pin, which is fixed to the ski, or is held and guided by a track, in the form of an arc of a circle, e.g., a dovetail guide, which track has a center of curvature that is disposed beyond the toe iron in the direction toward the tip of the ski.
  • a track in the form of an arc of a circle, e.g., a dovetail guide, which track has a center of curvature that is disposed beyond the toe iron in the direction toward the tip of the ski.
  • Another toe iron is initially movable transversely to the longitudinal direction of the ski and subsequently movable towardthe tip of the ski.
  • the toe iron is retained in its normal position by resilient means, or is virtually rigid unless a predetermined deflecting force is applied.
  • the resilient retain ing means have the advantage that they afford a shock-absorbing action.
  • the virtually rigid toe irons do not involve a risk of retaining the skiing boot in the binding in a position which is oblique to the ski under the action of forces which are insufficient for a release and act obliquely or transversely to the longitudinal direction of the ski but they lack the shock-absorbing action, which is inherently desirable.
  • the object is accomplished according to the invention in that the soleholder member is held on the toe iron and is capable of a limited movement on a concave track in the form of an arc of a circle on both sides of its normal position.
  • the radius of curvature of said track is not larger than the radius of the pivotal movement of the forward end of the boot.
  • a development of the invention concerns a toe iron which is movable against the force of a spring element.
  • a spring element which serves also as a centering spring for the soleholder member.
  • FIG. 1 is a central longitudinal sectional view showing a toe iron and FIG. 2 shows the toe iron in a top plan view tional view taken on line II-II of FIG. 1.
  • the toe iron according to the invention comprises substantially a baseplate l, which can be fixed with screws to the ski, a pivoted member 2 which is mounted on the baseplate, and a soleholder member 3, which is held on the pivoted member.
  • a guide member 4 which is dovetail-shaped in cross section is partly in a secsecured to the baseplate l and has the curvature which is apparent from FIG. 2
  • the pivoted member 2 has a dovetailshaped groove 5 which mates the guide member 4 and owing to the cooperation of the guide member 4 and groove 5 is movable on the baseplate 1 toward both sides to an extent which is sufficient to release the toe portion of the boot.
  • a spacing disc 12 consisting of a suitable material having a low coefficient of friction is provided between the baseplate l and the pivoted member 2.
  • the soleholder member 3 is held on the pivoted member 2 for limited movement on a concave track II having the shape of an arc ofa circle on both sides of its normal position.
  • the radius of curvature of the track 11 is smaller in the present case than the radius ofthe pivotal movement of the forward end of the boot.
  • the soleholder member 3 has a dovetail-shaped retaining rib 15, which is dovetailshaped in cross section and slidably mounted in a mating track groove 11 of the pivoted member 2.
  • the displacement of the soleholder member 3 is limited by a pin 13 which is held in the pivoted member 2 and has a free end portion engaging a central elongated hole or recess 14 in the soleholder member 3.
  • an additional centering spring 7 as shown in FIG. 2 will be provided for urging the soleholder member to its normal position.
  • the soleholder member consists suitably of a material having a low coefficient of friction, e.g., a suitable plastics material.
  • these surfaces of the soleholder member which contact the pivoted member may be coated with friction-reducing material.
  • the soleholder member follows the movement of the forward end of the boot within the damping zone so that there is no relative movement between the soleholder member and the skiing boot.
  • such relative movement involves a high friction, which prevents an exact return movement after the action of forces which have not resulted in a release.
  • a toe iron for safety ski bindings mounted on a ski to be movable toward the tip of the ski, said toe iron engaging the forward end portion of a skiing boot from above and comprising a base, a pivoting member mounted to said base and movable in a substantially horizontal arcuate path, said pivoting member comprising a horizontally concave track in the form of an are or a circle provided in the rearward portion of said member, the radius of said track being not larger than the radius for the pivoted movement of the forward end of the skiing boot, said radius being measured from the heel support of the skiing boot, a soleholder member movably mounted in said track of said pivot member and means to limit the movement of said soleholdermember, said means comprising at least one stop, and centering means to urge said pivoting member to its normal position.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US787103A 1968-01-05 1968-12-26 Toe iron for safety ski bindings Expired - Lifetime US3582099A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681678275 DE1678275A1 (de) 1968-01-05 1968-01-05 Vorderbacken fuer Sicherheits-Skibindungen

Publications (1)

Publication Number Publication Date
US3582099A true US3582099A (en) 1971-06-01

Family

ID=5686846

Family Applications (1)

Application Number Title Priority Date Filing Date
US787103A Expired - Lifetime US3582099A (en) 1968-01-05 1968-12-26 Toe iron for safety ski bindings

Country Status (8)

Country Link
US (1) US3582099A (xx)
JP (1) JPS4925856B1 (xx)
AT (1) AT292527B (xx)
CH (1) CH472898A (xx)
DE (1) DE1678275A1 (xx)
ES (1) ES362145A1 (xx)
FR (1) FR1600192A (xx)
SE (1) SE376370B (xx)

Also Published As

Publication number Publication date
DE1678275A1 (de) 1972-08-03
JPS4925856B1 (xx) 1974-07-04
ES362145A1 (es) 1970-11-01
CH472898A (de) 1969-05-31
SE376370B (xx) 1975-05-26
FR1600192A (xx) 1970-07-20
AT292527B (de) 1971-08-25

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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 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