US3900207A - Toe fixture for a ski safety binding - Google Patents

Toe fixture for a ski safety binding Download PDF

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Publication number
US3900207A
US3900207A US413627A US41362773A US3900207A US 3900207 A US3900207 A US 3900207A US 413627 A US413627 A US 413627A US 41362773 A US41362773 A US 41362773A US 3900207 A US3900207 A US 3900207A
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US
United States
Prior art keywords
toe
fixture
ski
ski boot
receiving pieces
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
US413627A
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English (en)
Inventor
Michio Iizuka
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.)
Hope KK
Original Assignee
Hope KK
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Filing date
Publication date
Application filed by Hope KK filed Critical Hope KK
Application granted granted Critical
Publication of US3900207A publication Critical patent/US3900207A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • A63C9/08507—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

  • ABSTRACT A pair of toe-receiving pieces are pinned adjacent the front ends thereof to a frame mounted in position on a ski, in such a manner that the rear end portions of the toe-receiving pieces are turnable horizontally away from each other.
  • the toe-receiving pieces have recesses formed in their rear ends, the recesses defining vertical walls outward portions of which constitute side pressure bearing portions for the toe of the ski boot.
  • Means are provided adjacent the opposed inner ends of the vertical walls of the respective toereceiving pieces for making slidable contact with toe of the ski boot and constituting forward pressure bearing portions.
  • the points of contact between said means and the toe of the ski boot are normally located inside of the notional lines extending between the center of the rear end of the ski boot fixed in position on the ski and the respective pivot points of the toereceiving pieces.
  • the toe of the ski boot which is constantly urged forwardly by the forward pressure imparted by the heel holder of the ski safety binding is returned to its normal position when either of the points of contact between said means and the toe moves inside the notional line upon application of a force which is less than a predetermined limit.
  • This invention relates to a toe fixture which, in combination with a cooperating heel fixture, constitutes a ski safety binding adapted to hold a ski boot in position on a ski so as to automatically release the ski boot as when the skier falls.
  • the cup-type toe fixture is highly responsive to stresses in excess of the predetermined limit, it exhibits a serious defect in event the ski boot toe has slid side-ways within the cup, notwithstanding its roughened internal surface, upon application of a force falling short of the predetermined limit. If this happens while the skier is gliding over snow or like surfaces, his succeeding performance will be greatly hampered because the ski boot cannot be easily returned to its normal position on the ski. Worse yet, serious injuries such as sprains or bone fractures may result.
  • the cup of the prior art toe fixture previously set forth is replaced by a cooperative pair of toe-receiving pieces which are pivotally supported adjacent the front ends thereof so that the rear end portions of these toe-receiving pieces are turnable horizontally away from each other in the lateral direction of the ski.
  • the toe-receiving pieces have recesses formed at the lower portions of their rear ends and defining vertical walls.
  • a pair of rolls are rotatably supported adjaeent the opposed inner ends, respectively, of the respective toe-receiving pieces so as to make slidable contact with the front tip of the ski boot which is urged forwardly by a forward pressure imparted by a spring provided in a heel holder.
  • the lateral or shoulder portions of the toe of the ski boot make contact with the outward portions of the vertical walls.
  • the points of contact between the rolls and the front tip of the ski boot are located inside of the notional lines extending between the center of the rear end of the ski boot secured in position on the ski and the pivot points of the respective toe-receiving pieces.
  • FIG. 1 is a perspective view of a safety ski boot toe fixture constructed by way of a preferred embodiment of the invention
  • FIG. 2 is a top plan view of the embodiment of FIG.
  • FIG. 3 is a bottom plan view, partly in section, of the embodiment of FIG. 1 from which the base is removed to show other parts in detail;
  • FIG. 4 is an end elevational view of the embodiment of FIG. I.
  • FIG. 5 is a top plan view explanatory of the operation of the embodiment of FIG. 1.
  • the safety ski boot toe fixture illustrated therein by way of a preferred embodiment of this invention includes a pair of toereceiving pieces 10 which in combination corresponds to the cup of the prior art toe fixture referred to earlier in this specification.
  • Each of the toereceiving pieces 10 is pinned at 11 adjacent the front end thereof to a frame 12 so as to be tumable laterally outwardly parallel to the plane of the ski to which the toe fixture is secured.
  • the frame 12 may be pivotally mounted on a base 13, FIGS.
  • a pair of bores 14 may be formed vertically through the frame 12 and the respective toereceiving pieces I0 for use in screwing the base 13 to the ski. It is to be noted, how ever, that the method of mounting the frame 12 on the ski is well known in the art and does not constitute a part of this invention.
  • Each of the aforesaid toe-receiving pieces has a recess formed at a lower portion of its rear end. As will be seen from FIGS. 2 and 3 in particular, these recesses of the respective toe-receiving pieces are arranged symmetrically with respect to the axis extending longitudinally of the ski and are adapted to receive the toe of a ski boot.
  • the recesses 15 are defined, in part, by inwardly positioned vertical walls 16 which extend at right angles with the longitudinal axis of the ski when the rear ends of the toe-receiving pieces are in the illustrated positions closest to each other, that is, when the toe of the ski boot is normally engaged by the toereceiving pieces, and by outwardly positioned vertical walls 17 which are at an angle of, say, 120 with the respective inwardly positioned vertical walls 16.
  • a helical compression spring 18 is mounted between the front ends of the toereceiving pieces 10 to cause the rear end portions thereof to tend to turn toward each other on the respective pins 11. Adjacent the inward ends of the aforesaid vertical walls 16 defining the recesses 15, a pair of rolls 19 are rotatably supported by shafts or pins 20 ex tending vertically through the respective toe-receiving pieces 10.
  • the ski boot As its heel is properly supported by a heel fixture, not shown, of any known or suitable construction also secured in position on the ski and having a spring provided therein for imparting a forward pressure, the ski boot will be thereby resiliently urged forwardly, with the result that its front tip is pressed against the pair of rolls l9 and its shoulder portions against the outwardly positioned vertical walls 17.
  • the pair of rolls 19 or rearward expansions and the outwardly positioned vertical walls 17 respectively constitute forward pressure bearing portions and side pressure bearing portions for the toe of the ski boot.
  • the toe of the ski boot is inserted into the recesses 15 of the toe-receiving pieces 10.
  • the ski boot is slightly twisted relative to the toe fixture so that a force within a predetermined limit is exerted sideways upon its toe causing the same to turn in the right-hand direction. for example, of the ski, then the right-hand one of the rolls 19 will be slightly displaced to the right together with the righthand toereceiving piece 10.
  • the toe-receiving piece is returned to its normal position upon cessation of the aforesaid lateral force due to a pivoting force acting on the toe-receiving piece in a direction to turn it toward the axis of the ski.
  • the ski boot toe is permitted easily to move horizontally away from and back to its normal position thanks to its contact with the rolls 19 which are free to turn on their respective pins 20.
  • the ski boot toe will succeedingly return to its normal position through the same action of the lefthand toe-receiving piece.
  • the ski boot thus released from the toe fixture according to the invention is assumed to be simultaneously released from the cooperating heel fixture also mounted on the ski, in order to protect the skier from possible bone fractures or other injuries as in the event of his fall.
  • the pair of toereceiving pieces 10 Upon release of the ski boot from the toe fixture, the pair of toereceiving pieces 10 will be automatically returned to their normal positions shown in FIGS. 1 to 4 by the spring 18.
  • a toe fixture for releasably securing a toe of a ski boot to a ski, the toe fixture being adapted for use with a heel fixture capable of exerting a forwardly directed force toward said toe fixture through a ski boot from a position of mounting of a heel fixture upon a ski remote from said toe fixture, said toe fixture comprising a frame, means for mounting said frame on a ski, a pair of toe-receiving pieces having front and rear ends, means pivotally supporting said toe-receiving pieces at pivot points located adjacent the front ends thereof upon said frame in such a manner that the rear ends of said toe-receiving pieces are turnahle in a plane parallel to the plane of a ski, said toe-receiving pieces having recesses formed in the rear ends thereof for receiving a toe of a ski boot, said recesses defining vertical wall portions constituting side pressure bearing portions for a toe of a ski boot, means between the front and rear ends of each toe-re

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US413627A 1973-02-20 1973-11-07 Toe fixture for a ski safety binding Expired - Lifetime US3900207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48020401A JPS49109139A (it) 1973-02-20 1973-02-20

Publications (1)

Publication Number Publication Date
US3900207A true US3900207A (en) 1975-08-19

Family

ID=12025987

Family Applications (1)

Application Number Title Priority Date Filing Date
US413627A Expired - Lifetime US3900207A (en) 1973-02-20 1973-11-07 Toe fixture for a ski safety binding

Country Status (7)

Country Link
US (1) US3900207A (it)
JP (1) JPS49109139A (it)
AT (1) ATA1005773A (it)
CH (1) CH571875A5 (it)
DE (1) DE2359352A1 (it)
FR (1) FR2218115B1 (it)
IT (1) IT1002013B (it)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4082314A (en) * 1976-03-19 1978-04-04 Hannes Marker Front jaw for safety ski bindings
US4094530A (en) * 1976-03-22 1978-06-13 Hannes Marker Front jaw for safety ski bindings
US20080048430A1 (en) * 2006-08-25 2008-02-28 Marker Deutschland Gmbh Boot retaining unit of a ski binding
US20120104707A1 (en) * 2010-10-29 2012-05-03 Salomon S.A.S. Safety binding for skiing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2952308B1 (fr) * 2009-11-12 2013-07-12 Salomon Sas Butee avant pour fixation de securite destinee a etre fixee a un ski

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638959A (en) * 1969-09-05 1972-02-01 Henri Reuge Toe stop member for ski safety bindings
US3734521A (en) * 1970-07-10 1973-05-22 Marker Hannes Toe iron for safety ski bindings
US3744810A (en) * 1970-04-14 1973-07-10 Marker Hannes Toe iron for safety ski bindings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638959A (en) * 1969-09-05 1972-02-01 Henri Reuge Toe stop member for ski safety bindings
US3744810A (en) * 1970-04-14 1973-07-10 Marker Hannes Toe iron for safety ski bindings
US3734521A (en) * 1970-07-10 1973-05-22 Marker Hannes Toe iron for safety ski bindings

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4082314A (en) * 1976-03-19 1978-04-04 Hannes Marker Front jaw for safety ski bindings
US4094530A (en) * 1976-03-22 1978-06-13 Hannes Marker Front jaw for safety ski bindings
US20080048430A1 (en) * 2006-08-25 2008-02-28 Marker Deutschland Gmbh Boot retaining unit of a ski binding
US7758062B2 (en) * 2006-08-25 2010-07-20 Marker Deutschland Gmbh Boot retaining unit of a ski binding
US20120104707A1 (en) * 2010-10-29 2012-05-03 Salomon S.A.S. Safety binding for skiing
US8936252B2 (en) * 2010-10-29 2015-01-20 Salomon S.A.S. Safety binding for skiing

Also Published As

Publication number Publication date
FR2218115B1 (it) 1976-06-25
ATA1005773A (de) 1975-10-15
FR2218115A1 (it) 1974-09-13
JPS49109139A (it) 1974-10-17
CH571875A5 (it) 1976-01-30
IT1002013B (it) 1976-05-20
DE2359352A1 (de) 1974-08-29

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