US3774922A - Ski binding - Google Patents

Ski binding Download PDF

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Publication number
US3774922A
US3774922A US00224137A US3774922DA US3774922A US 3774922 A US3774922 A US 3774922A US 00224137 A US00224137 A US 00224137A US 3774922D A US3774922D A US 3774922DA US 3774922 A US3774922 A US 3774922A
Authority
US
United States
Prior art keywords
ski
electromagnet
permanent magnet
ski boot
engaging member
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
US00224137A
Other languages
English (en)
Inventor
T Smolka
G Schweizer
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.)
Gertsch AG
Original Assignee
Gertsch AG
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 Gertsch AG filed Critical Gertsch AG
Application granted granted Critical
Publication of US3774922A publication Critical patent/US3774922A/en
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
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/088—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with electronically controlled locking devices
    • A63C9/0885—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with electronically controlled locking devices remotely operated, e.g. by the skier

Definitions

  • ABSTRACT Safety ski binding with magnetic release assisting means A permanent magnet is fixed to one portion of a releaseable ski binding and an electromagnet is affixed to another portion thereof, which other portion moves away from the first portion during a release operation.
  • the electromagnet is de energized the permanent magnet operates thereagainst and holds the ski binding closed.
  • same is energized at such polarity as to repel] the poles of the permanent magnet and the ski binding is permitted to open.
  • Energization of the electromagnet may be by the conscious closure of a switch by the user, by remote control such as radio, or by sensing the bio-electro circuits of the leg muscles of the user when, same are subjected to tension to initiate closure of such switch.
  • the invention relates to a ski binding which has at least one magnetic system.
  • the known ski bindings which are equipped with a magnetic system operate substantially either to overcome the magnetic force directly during release or to utilize a magnet to free a lock.
  • the purpose of the present invention is to make an improvement in which the magnetic field which is effective during operation becomes repellent during release.
  • This purpose is attained by positioning a permanent magnet with at least one of its poles resting on at least one pole of an electromagnet, the polarities being such that when energized the electromagnet forms with respect to the permanent magnet at least one like pole which thus repels the permanent magnet. The result is that during a release the poles of the electromagnet oppose the poles of the permanent magnet and in this manner the two magnets are caused to move apart.
  • FIG. 1 illustrates a heel binding equipped according to the invention
  • FIG. 2 is a cross-sectional view along the line IIII of FIG. 1,
  • FIG. 3 illustrates the heel binding according to FIG. 1 in open condition
  • FIG. 4 is the arrangement on the ski of a ski bott between schematized ski binding parts which are equipped according to the invention
  • FIG. 5 illustrates a binding part according to FIG. 4 in open condition
  • FIG. 6 and 7 schematically illustrate a jaw construction in two positions.
  • the sole holder 1 is supported pivotably about the axis 2 on the base member 3. Furthermore a permanent magnet 4 is connected to the sole holder 1, which permanent magnet rests with its poles on the poles of the electromagnet 5.
  • the electromagnet is in this embodiment secured on the base plate 6 and is connected to a circuit whichis enerbe closed through the lines 11 by means of the switch 7 which can be arranged in the ski pole, in the clothing or the like of the user.
  • the electromagnet is thus energized and magnetic poles created on its ends.
  • the magnetic poles are so arranged that the poles of electromagnet 5 oppose corresponding poles of the permanent magnet 4 and this generates a repelling force there between. This opens the binding (FIG. 3) and releases the ski boot.
  • the ski boot 12 is held on the ski 13 between a front and a rear binding part which are both of the same construction.
  • Each of these bindings has a permanent magnet 4 which is secured on the sole holder 1 which can be pivoted upwardly about the axis 2 and sidewardly about the axis 14 when the mag netic force of the permanent magnet 4 is overcome.
  • the permanent magnet 4 rests with its poles on the poles of an electromagnet 5 which is turned off in condition of use. This electromagnet is coupled to a receiver 15.
  • One or more sensors 17 are arranged on the foot 16 or on any other part of the body of the user, which sensors absorb the bio-electrical currents of the muscles and pass an impulse, when needed, to the receiver 15 through the transmitter 18. This energizes the coil of the electromagnet 5 so that poles appear on said electromagnet of such polarity as to oppose the corresponding poles of the permanent magnet. Thus, the permanent magnet is repelled and the binding opens as illustrated in FIG. 5.
  • an electromagnet 5 is opposite a permanent magnet 4.
  • the electromagnet is energized, again like poles of the electromagnet and the permanent magnet coincide and the permanent magnet is repelled.
  • This moves the clamp part 1' along the base plate 6 and the boot 12 is released.
  • a release to the side is also possible because the clamp part 1 can be pivoted laterally about the axis 19.
  • the magnetic force must be overcome, in the position of FIG. 6. In the position of FIG. 7, the clamp part 1 can be moved freely.
  • a releasable ski binding for holding a ski boot on a ski, said releasable ski binding having a base secured to said ski, a ski boot engaging member supported for movement toward and away from said ski boot and a permanent magnet secured to at least one of said base and said ski boot engaging member for normally holding said ski boot engaging member in engagement with said ski boot, the improvement comprising:
  • said electromagnet means defining an electromagnet secured to the other of said base and said ski boot engaging member and electrical power source means for supplying electrical power thereto, said electromagnet generating first a magnetic pole upon having said electrical power supplied thereto, said permanent magnet having a second magnetic pole of the same polarity as said first magnetic pole, said permanent magnet being magnetically coupled to said electromagnet means'when said electromagnet means is unenergized;
  • switching means for selectively controlling the supply of said electrical power to said electromagnet means, said switching means, when effecting an energization of said electromagnet means, effecting a generation of said first magnetic pole to effect a positive repelling or separating of said permanent magnetfrom said electrogmagnet means and a release of said ski boot engaging member from enga'gement with said ski boot.
  • switching means comprises a normally open switch for electrically connecting said battery to said electromagnet means.
  • switching means comprises a transmitter for generating an electrical signal in response to a fall condition and receiver means responsive to said signal to effect an electrical connection of said power source means to said electrogmagnet means.
  • ski boot engaging member includes first means for pivotally securing same to said ski about a generally horizontal axis transverse of the longitudinal axis of said ski.
  • ski boot engaging member includes second means for slidably supporting same for movement relative to said-ski and parallel thereto.
  • ski boot engaging member includes first means for pivotally securing same to said ski about a generally vertical axis and second means for slidably supporting said ski boot engaging member for movement relative to said ski and parallel thereto to facilitate said separating movement between said ski boot engaging member and said permanent magnet.
  • adjustment means for adjusting the position of said permanent magnet relative to said electromagnet means to facilitate an adjustment of the holding force between said permanent magnet and said ski boot engaging member.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US00224137A 1971-02-18 1972-02-07 Ski binding Expired - Lifetime US3774922A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT139371A AT307942B (de) 1971-02-18 1971-02-18 Skibindung

Publications (1)

Publication Number Publication Date
US3774922A true US3774922A (en) 1973-11-27

Family

ID=3512893

Family Applications (1)

Application Number Title Priority Date Filing Date
US00224137A Expired - Lifetime US3774922A (en) 1971-02-18 1972-02-07 Ski binding

Country Status (6)

Country Link
US (1) US3774922A (show.php)
AT (1) AT307942B (show.php)
CA (1) CA944392A (show.php)
CH (1) CH546589A (show.php)
DE (1) DE2162607A1 (show.php)
FR (1) FR2125287B1 (show.php)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280714A (en) * 1976-11-04 1981-07-28 S.A. Etablissements Francois Salomon & Fils Safety bindings for skis
US4291894A (en) * 1974-05-07 1981-09-29 Antonio Nicholas F D Electrical ski boot release
US4361344A (en) * 1980-08-11 1982-11-30 The Regents Of The University Of California Ski binding with universal release
US4371188A (en) * 1980-06-24 1983-02-01 University Of California Method for programmed release in ski bindings
US4463968A (en) * 1980-06-24 1984-08-07 The Regents Of The University Of California Method for programmed release in ski bindings
US4484761A (en) * 1982-07-13 1984-11-27 Marker-Patentverwertungsgesellschaft Mbh. Magnetic release system for safety ski bindings
US4494768A (en) * 1980-06-24 1985-01-22 The Regents Of The University Of California Apparatus for programmed release in ski bindings
US20070170695A1 (en) * 2006-01-20 2007-07-26 Salomon S.A. Safety binding for a boot on a ski
US20100191224A1 (en) * 2008-12-15 2010-07-29 C.R. Bard, Inc. Magnetic detent mechanism for medical instruments
EP4124368A1 (en) * 2021-07-30 2023-02-01 Petrarca's Ideas - Innovative Startup Srl Ski-binding attachment and method of connecting or disconnecting a ski-boot with/from said attachment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2253252A (en) * 1937-09-28 1941-08-19 Gen Motors Corp Refrigerating apparatus
US3246907A (en) * 1964-01-07 1966-04-19 Douglas S Chisholm Magnetic ski binding or harness
US3318610A (en) * 1964-06-10 1967-05-09 Kulick George Ski boot magnetic release binders
US3353835A (en) * 1963-08-16 1967-11-21 Beteiligungs & Patentverw Gmbh Magnetic safety ski binding
US3367672A (en) * 1966-07-11 1968-02-06 Joseph A. Tonozzi Safety ski binding
US3528672A (en) * 1967-06-15 1970-09-15 Wunder Kg Heinrich Safety ski binding

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2253252A (en) * 1937-09-28 1941-08-19 Gen Motors Corp Refrigerating apparatus
US3353835A (en) * 1963-08-16 1967-11-21 Beteiligungs & Patentverw Gmbh Magnetic safety ski binding
US3246907A (en) * 1964-01-07 1966-04-19 Douglas S Chisholm Magnetic ski binding or harness
US3318610A (en) * 1964-06-10 1967-05-09 Kulick George Ski boot magnetic release binders
US3367672A (en) * 1966-07-11 1968-02-06 Joseph A. Tonozzi Safety ski binding
US3528672A (en) * 1967-06-15 1970-09-15 Wunder Kg Heinrich Safety ski binding

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291894A (en) * 1974-05-07 1981-09-29 Antonio Nicholas F D Electrical ski boot release
US4280714A (en) * 1976-11-04 1981-07-28 S.A. Etablissements Francois Salomon & Fils Safety bindings for skis
US4371188A (en) * 1980-06-24 1983-02-01 University Of California Method for programmed release in ski bindings
US4463968A (en) * 1980-06-24 1984-08-07 The Regents Of The University Of California Method for programmed release in ski bindings
US4494768A (en) * 1980-06-24 1985-01-22 The Regents Of The University Of California Apparatus for programmed release in ski bindings
US4361344A (en) * 1980-08-11 1982-11-30 The Regents Of The University Of California Ski binding with universal release
US4484761A (en) * 1982-07-13 1984-11-27 Marker-Patentverwertungsgesellschaft Mbh. Magnetic release system for safety ski bindings
US20070170695A1 (en) * 2006-01-20 2007-07-26 Salomon S.A. Safety binding for a boot on a ski
US20100191224A1 (en) * 2008-12-15 2010-07-29 C.R. Bard, Inc. Magnetic detent mechanism for medical instruments
EP4124368A1 (en) * 2021-07-30 2023-02-01 Petrarca's Ideas - Innovative Startup Srl Ski-binding attachment and method of connecting or disconnecting a ski-boot with/from said attachment

Also Published As

Publication number Publication date
CA944392A (en) 1974-03-26
AT307942B (de) 1973-06-12
FR2125287A1 (show.php) 1972-09-29
FR2125287B1 (show.php) 1975-02-07
DE2162607A1 (de) 1972-08-31
CH546589A (de) 1974-03-15

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