US3343845A - Toe iron for safety ski bindings - Google Patents

Toe iron for safety ski bindings Download PDF

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Publication number
US3343845A
US3343845A US554548A US55454866A US3343845A US 3343845 A US3343845 A US 3343845A US 554548 A US554548 A US 554548A US 55454866 A US55454866 A US 55454866A US 3343845 A US3343845 A US 3343845A
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US
United States
Prior art keywords
sole
toe
retainer
iron
ski
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
US554548A
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English (en)
Inventor
Marker Hannes
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
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Application granted granted Critical
Publication of US3343845A publication Critical patent/US3343845A/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
    • A63C9/08557—Details of the release mechanism
    • A63C9/08564—Details of the release mechanism using cam or slide surface
    • 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

Definitions

  • the object of the present invention is to provide a toeiron for safety ski bindings, which is adapted first to absorb the forces arising transversely of the longitudinal direction of the ski through a long damping travel and only to release the foot after more prolonged application of such forces or under very marked torsion forces which could result in an injury to the skier.
  • it is intended to utilise the tightening force exerted by the heel in the direction of the ski tip in such a way that no particular spring or returning element is required on the toe-iron.
  • toe-irons for safety ski bindings which resiliently absorb lateral forces through a prolonged travel. It is however of disadvantage here that in the known toe-irons, either really complicated spring or return elements have to be provided in order to apply corresponding force to counteract the forces arising transversely of the longitudinal direction of the ski, the difiicult diversion of the spring forces additionally requin'ng very much stronger springs than would be possible if the spring were to work directly on the return curve or the like.
  • a particular spring-action return element for the toe-iron is rendered unnecessary, the force of the tightening action applied by the heel in the direction of the ski tip being utilised to generate the resistance of the toe-iron to being released.
  • this is achieved in that the sole-retaining member which engages over the front edge of the boot sole is, on both sides of its normal position, guided as far as the release position on a circular curve of a base part mounted rigid on the ski, the middle point of the said base part being situated between the toe-iron and the heel portion, the lateral branches of the guide curve being directed forwardly, the sole-retainer being braced against the guide curve by means of two rollers or the like which are disposed symmetrically of the longitudinal centre line.
  • the radius of the pivoting movement of the sole-retaining member is smaller than the radius of the natural pivoting movement of the boot, the centre point of which is in the region of the heel, the boot, when released or even during relatively small pivoting movements which are not intended to release the foot, is guided slightly backw-ardly against the action of the tightening force.
  • the effect of this is to increase the tightening force, which tends to force the toe-iron, through the boot, back into its starting position, so that a self-centring of the toeiron or its sole-retaining member results.
  • FIG. 1 is a vertical cross-section through afirst embodiment of a toe-iron according to the invention
  • FIG. 2 is a plan view of the toe-iron shown in FIG. 1;
  • FIG. 3 is a plan view of the toe-iron shown in FIGS. 1 and 2, in the released position;
  • FIG. 4 is a vertical cross-section through a second embodiment
  • FIG. 5 is a plan view of FIG. 4.
  • FIGS. 1-3 show a toe-iron according to the invention. It consists of the base part 1 which is to be mounted rigidly on the ski, and the sole-retainer 7 which has flanges 13, 14, which engage on the projection 2 of the part 1, being guided and held in the groove 3 of the projection 2 by means of pin members 9, 10 on which are mounted rollers 11, 12.
  • the sole-retainer 7 describes a circular path having a radius 6, Le. the radius of the arcuate groove 3.
  • the sole-retainer 7 Since the radius 6 is smaller than the radius 8 of the circular path described by the toe of the boot about a pivot point located for example at the height of the ankle, the sole-retainer 7, during such a pivoting movement, is guided somewhat rearwardly in the longitudinal direction of the ski. At the same time, however, also due to the differing radii 6 and 8 and the somewhat increasing tightening force, the sole-retainer 7 is guided back to its starting position at any time upon cessation of a transverse force acting on it but not as yet dangerous.
  • FIGS. 4 and 5 show another embodiment of a toe-iron according to the invention.
  • the base part which is to be mounted rigidly on the ski comprises the cover plates 2%, 21 and the interposed spacer and guide member 22.
  • Both cover plates 20, 21 have grooves 24, 25 machined into them, the sole-retainer 23 being slidingly guided in the said grooves through pin members 26 and 27.
  • the projections 28, 29 on the soleretainer 23 are additionally braced against the guide path 30 of the part 22.
  • the method of opera-tion is the same as with the embodiment shown in FIGS.
  • the sole-retainer 23 describes a circular movement corresponding to the radius of the guide grooves 24, 25 or of the guide path 30, this radius being again smaller than the radius of the circular path described by the toe of the boot during a pivoting movement about an assumed point situated for example at the height of the ankle.
  • the guide grooves 24, 25 similarly have forwardly pointing curve branches 33, 34 and 35, 36, directed towards the point of the ski, so that the sole-retainer 23 likewise has a possibility of moving forwardly after a predetermined pivoting angle has been reached, in order that the foot may be released.
  • the guide projections 28, 29 slide over the corners 31 or 32 of the guide path 30 and it becomes possible for the corners 31, 32 to move into the gap 37 in the sole-retainer 23.
  • a toe iron for safety ski bindings comprising a base means attached to a ski, said base means being formed with a guide surface extending transversely to the longitudinal direction of the ski on an arcuate path, the center of curvature of which is located on the longitudinal centerline of the ski behind the toe iron but in front of the center of rotation of a boot engaging the toe iron, the length of the guide surface corresponding approximately to the range of foot-twist occurring during harmless lateral jolts, and said guide surface terminating in guide faces which are inclined sharply forwardly to said transverse guide surface, a sole-retaining member, and a pair of support elements engaging said transverse guide surface and disposed symmetrically of the longitudinal centerline of the ski, said support elements being carried by said sole-retaining member and guiding the transverse movement thereof.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Clamps And Clips (AREA)
US554548A 1965-06-04 1966-06-01 Toe iron for safety ski bindings Expired - Lifetime US3343845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM0065492 1965-06-04

Publications (1)

Publication Number Publication Date
US3343845A true US3343845A (en) 1967-09-26

Family

ID=7311467

Family Applications (1)

Application Number Title Priority Date Filing Date
US554548A Expired - Lifetime US3343845A (en) 1965-06-04 1966-06-01 Toe iron for safety ski bindings

Country Status (7)

Country Link
US (1) US3343845A (de)
AT (1) AT269714B (de)
CH (1) CH453988A (de)
DE (1) DE1478142C3 (de)
ES (1) ES327505A1 (de)
GB (1) GB1141595A (de)
NO (1) NO115948B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5009947A (en) * 1989-04-28 1991-04-23 Schlegel Corporation Elastomeric strip and method of manufacture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2759144C3 (de) * 1977-12-31 1981-12-03 Bernhard 5500 Trier Kirsch Vorderbindung für eine Sicherheitsskibindung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079164A (en) * 1959-08-21 1963-02-26 Place Henri De Safety knock-off devices for ski binders
US3224786A (en) * 1962-06-14 1965-12-21 Reuge Sa Safety stop for ski attachment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079164A (en) * 1959-08-21 1963-02-26 Place Henri De Safety knock-off devices for ski binders
US3224786A (en) * 1962-06-14 1965-12-21 Reuge Sa Safety stop for ski attachment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5009947A (en) * 1989-04-28 1991-04-23 Schlegel Corporation Elastomeric strip and method of manufacture

Also Published As

Publication number Publication date
ES327505A1 (es) 1967-03-16
GB1141595A (en) 1969-01-29
NO115948B (de) 1968-12-30
AT269714B (de) 1969-03-25
DE1478142A1 (de) 1969-09-25
CH453988A (de) 1968-03-31
DE1478142C3 (de) 1974-08-29
DE1478142B2 (de) 1974-02-07

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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, P.O. BOX 26548, SALT

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

Effective date: 19880331

Owner name: MARKER INTERNATIONAL COMPANY,UTAH

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

Effective date: 19880331