US3348854A - Toe iron for safety ski bindings - Google Patents

Toe iron for safety ski bindings Download PDF

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Publication number
US3348854A
US3348854A US554579A US55457966A US3348854A US 3348854 A US3348854 A US 3348854A US 554579 A US554579 A US 554579A US 55457966 A US55457966 A US 55457966A US 3348854 A US3348854 A US 3348854A
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US
United States
Prior art keywords
sole
ski
retainer
spring
longitudinal direction
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
US554579A
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English (en)
Inventor
Marker Hannes
Adam Gunter
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
Marker
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 US3348854A publication Critical patent/US3348854A/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
    • A63C9/08585—Details of the release mechanism using transverse biasing element
    • 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
    • A63C9/08—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
    • A63C9/0805—Adjustment of the toe or heel holders; Indicators therefor

Definitions

  • the invention relates to a safety toe iron which, by exercising a relatively long damping action, absorbs the lateral jolts and more trivial torsion stresses arising during normal progress, only releasing the foot completely under more prolonged lateral or torsion force, whereupon the toe iron or its sole retaining member is restored to the midway position under spring tension, the toe iron returning to its normal position in which it is possible to fit the boot into the binding.
  • t-oe iron Various types of t-oe iron which, to absorb or damp the lateral jolts arising during normal progress, admit of a small to medium pivoting movement before the foot is released when a pre-set torque is exceeded.
  • a disadvantage is that the toe iron performs a circular movement about an axis disposed at right angles to the surface of the ski and so, looking in the longitudinal direction of the ski, is pushed a little to the rear first, during this pivoting movement, against the tightening force applied towards the point of the ski by the heel, until the rear edge of the supporting surface, looking in the direction of pivoting, has reached the longitudinal centre line.
  • the foot is then pushed forwardly by the clamping force.
  • a further disadvantage of the known toe irons of the aforesaid type resides in that the return spring acts directly as an arresting element, so that, in cases of relatively pronounced rotational movement, the spring becomes necessarily increasingly tighter, so that the resistance of the spring to further pivoting steadily increases.
  • the resistance of the toe iron to being twisted in the midway position is initially relatively small, so that holding of the foot in the binding is unreliable even in the normal position, an improvement of this hold being impossible in the midway position because the spring can only be pretensed that release is possible in the event of a spill, against the then rapidly increasing resistance of the spring.
  • the invention is based on the problem of avoiding the disadvantages of the various known toe irons offering damping of lateral forces through a relatively long damping travel.
  • the invention is intended to provide a toe iron in which the releasing movement and the damping of the forces arising during more trivial lateral jolts can no longer be affected to a considerable extent or even prevented by the clamping force.
  • a further object of the invention resides in constructing a safety toe iron with a damping action in such a way that there is no essential difference in the spring resistance over the entire damping path, so ensuring that instability of the grip in the midway position is avoided.
  • it is also intended to provide a possibility, in the case of a safety toe iron,
  • the sole-retaining member is, in every position, subject to the action of one or more return springs.
  • the sole-retaining member as soon as the parts thereof which are braced against the guide face which extends transversely to the longitudinal direction of the ski have left this guide face, slides with these bracing parts or with the (in the direction of rotational movement) front bracing part, along the sharply forwardly inclined guide face, results in an immediate release of the foot when the range of relatively small and harmless foot twists is exceeded. Since the return springs co-operate with the sole-retaining member in all positions of the latter, damping of more trivial side jolts is guaranteed, together with a return of the sole-retaining member into the midway position after the foot has been released during a spill.
  • the spring element can co-operate with the sole-retaining member in such a way that an abutment part of the soleretaining member slides along a lever adapted to pivot against the force of the spring, the shape and arrangement of the lever and the lever arm which extends during displacement of the sole-retaining member compensating for any increase in spring resistance during rotational movement.
  • the spring element cooperates with the sole-retaining member through a control curve provided on a separate component which guides the sole-retainer, the control curve once again being so contrived that the increase in spring resistance is matched by a corresponding decrease in curve pitch, so that the increase in spring resistance due to increasing tension of the spring is compensated.
  • the spring element used is a torsion spring, of which the free spring arms act as lever members and co-operate with a corresponding abutment part of the sole-retaining member.
  • lateral movement is counteracted by approximately the same mangnitude-of force in every pivoting position, causing the toe iron to return automatically from any desired position, even from the position of release.
  • F161 is a vertical cross-section through-a first em: bodiment 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 the toe iron in FIG. 4;
  • FIG. 6 is a plan view of the toe iron in FIGS. 4 and 5, in the released position;
  • FIG. 7 is a verticalcross-section through a third embodiment, taken along the broken line indicated in FIG. 8;
  • FIG. 8 is a plan view of the embodiment shown in FIG. 7, and
  • FIG. 9 is a plan View of the embodiment shown in FIGS. 7 and 8, in the released position.
  • FIGS. 1 to 3 illustrate an embodiment of toe iron according to the invention.
  • the toe iron consists of the part 1 which is to be fitted rigidly on the ski and the soleretaining member 2 having a beaded edge 11 which engages over the front edge of the sole.
  • the sole-retainer 2 has flanges 18 and 19 which fit over the projection 15 on part 1 and is guided and held by bolts 6, 7 in the groove 3 provided in the projection 15.
  • a torsion spring 9 is used which is guided and held in, part 1 by the bolts the two ends of the said torsion spring 9 engage with the sole-retainer 2 via the bolts 6,7.
  • the sole-retainer 2 can move sideways and, by virtue of the shape of the curve 3, initially only transversely to the longitudinal direction of the ski.
  • the torsion spring 9 is additionally tensed by displacement of the bolts 6, 7. So that the other end of the spring which now becomes free cannot follow, an abutment 17 is disposed on the fixed part 1, between the two spring ends.
  • two guide projections 12., 13, are provided between the two flanges 18, 19, and are braced against the projection 15.
  • angles 35, 36 are braced against the guide face 47 ofthe fixed part 30 through rollers 37, 38 which are mounted in the angle arms 33, 34 by means of pin members 51,
  • the returning element is a thrust spring 50 which engages through angle arms 39, 40, which are mounted to pivot about pin members 43, 44, against the bolt 32 and thus against the sole-retainer 33, 34, 35, 36.
  • Theangle arms 39, 40 are inserted in a recess 53 in the fixed part 30 and, in the starting position, bear against the shoulders 45, 46 of the recess 53. Sothat tilting of the spring 50 out of the position between the angle arms 39, 40 is avoided, a spring guide41, 42 is provided on each of the arm ends.
  • the spring 50 is in each case compressed by one of the angle arms 39, 40.
  • the increasing springforce is however largely compensated by the altered line of force action. Since, with increasing pivoting, the spring force acts through'the angle arm 39, 40 still more slantwise on the bolt 32, so an ever-increasing force must be applied in this inclined direction in order to obtain a transverse force which is for example constantin any position.
  • the spring element remains engaged even after release, so that an independent reutrn of the sole-retainer 33, 34, 35, 36 from any pivoted position is ensured.
  • FIGS. 7-9 show a further embodiment according to the invention.
  • the housing 60- is mounted rigid on the ski, the sole-retainer 79 being guided in a groove 76 of the sliding block 75 which, for its part, can only move transversely to the longitudinal direction of the ski, through the guide 61.
  • the sole-retainer 72 is braced through the roller 73 and its spindle 74 against the guide face 66 of the housing 60.
  • the sole-retainer. 72 first has,
  • a thrust spring 68 is provided which engages the curve 77 of the sliding block 75 through a pusher. 69 in which the roller 70 is mounted by means of pin member 71.
  • the setscrew 67 is used to pre-tense the spring 68 as necessary.
  • the roller 70 rolls along the curve 77 and so presses the spring 68 additionally together.
  • the curve 77 must therefore be so shaped that, by changing the point of attack of the force on the roller 70, the increasing spring force can be so compensated that a transverse force which is the same for example in any position, .acts on the sole-retainer 72.
  • the returning element 67-71 remains engaged with the curve 77 even in the released position, so that an automatic return of the soleretainer 72 into the starting position is still guaranteed.
  • a toe iron for safety ski binding 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, the length of which corresponds approximately to the range of foot-twist occurring during harmless lateral jolts, and terminating in guide faces which are inclined sharply forwardly to said transverse guide surface, a sole-retaining member carried by said base means, said sole-retaining member being positioned for movement along said guide surface and being biased by a return spring means carried by said base means and acting upon said sole-retaining member in every position to bias the sole-retaining member towards its normal sole-retaining position.
  • a toe iron according to claim 1 characterized in that said spring means includes a pair of resiliently pivotable arms, and the sole-retaining member includes an abutment part which moves against the force of the resiliently pivotable arms, the design and arrangement of each arm compensating for increased resistance during pivotal movement.
  • a toe iron according to claim 1 characterized in that the spring means cooperates with the sole-retaining member through a control curve provided thereon, the control curve being so constructed that a corresponding lessening of curve pitch matches increase in spring resistance.
  • a toe iron according to claim 1 characterized in that said spring means includes a pair of pivotal arms, one ends of which are biased by a spring and the other ends of which cooperate with the sole-retaining member, said arms being so constructed that increase in spring resistance is compensated by altered line of force.
  • a toe iron according to claim 2 characterized in that the spring means is comprised of a torsion spring, the free spring ends of which are shaped as lever members and cooperate with a corresponding abutment part of the soleretaining member.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Clamps And Clips (AREA)
US554579A 1965-06-04 1966-06-01 Toe iron for safety ski bindings Expired - Lifetime US3348854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1478141A DE1478141B2 (de) 1965-06-04 1965-06-04 Vorderbacken für Sicherheits-Skibindungen

Publications (1)

Publication Number Publication Date
US3348854A true US3348854A (en) 1967-10-24

Family

ID=7311466

Family Applications (1)

Application Number Title Priority Date Filing Date
US554579A Expired - Lifetime US3348854A (en) 1965-06-04 1966-06-01 Toe iron for safety ski bindings

Country Status (8)

Country Link
US (1) US3348854A (en, 2012)
AT (1) AT273754B (en, 2012)
CH (1) CH450985A (en, 2012)
DE (1) DE1478141B2 (en, 2012)
ES (1) ES327504A1 (en, 2012)
FR (1) FR1481873A (en, 2012)
GB (1) GB1142169A (en, 2012)
NO (1) NO115949B (en, 2012)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455570A (en) * 1966-10-28 1969-07-15 Georges P J Salomon Resilient binding for skis
US3642298A (en) * 1966-10-28 1972-02-15 Georges P J Salomon Resilient binding for skis
US3658355A (en) * 1969-04-02 1972-04-25 Marker Hannes Toe iron for safety ski bindings
US3787070A (en) * 1971-02-16 1974-01-22 Salomon Georges P J Ski binding with lateral release
US3801118A (en) * 1971-06-10 1974-04-02 Gertsch Ag Releasable ski binding
US4860446A (en) * 1988-02-16 1989-08-29 Medtronic, Inc. Medical electrical lead and method of manufacture
US4979762A (en) * 1988-01-05 1990-12-25 Salomon S.A. Ski boot safety binding
US5028069A (en) * 1988-12-20 1991-07-02 Tmc Corporation Centering spring for a front ski binding jaw

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 (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455570A (en) * 1966-10-28 1969-07-15 Georges P J Salomon Resilient binding for skis
US3642298A (en) * 1966-10-28 1972-02-15 Georges P J Salomon Resilient binding for skis
US3658355A (en) * 1969-04-02 1972-04-25 Marker Hannes Toe iron for safety ski bindings
US3787070A (en) * 1971-02-16 1974-01-22 Salomon Georges P J Ski binding with lateral release
US3801118A (en) * 1971-06-10 1974-04-02 Gertsch Ag Releasable ski binding
US4979762A (en) * 1988-01-05 1990-12-25 Salomon S.A. Ski boot safety binding
US4860446A (en) * 1988-02-16 1989-08-29 Medtronic, Inc. Medical electrical lead and method of manufacture
US5028069A (en) * 1988-12-20 1991-07-02 Tmc Corporation Centering spring for a front ski binding jaw

Also Published As

Publication number Publication date
DE1478141A1 (de) 1970-02-05
ES327504A1 (es) 1967-03-16
DE1478141B2 (de) 1974-10-10
GB1142169A (en) 1969-02-05
FR1481873A (en, 2012) 1967-08-21
CH450985A (de) 1968-05-15
AT273754B (de) 1969-08-25
NO115949B (en, 2012) 1968-12-30

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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