EP0091574B1 - Sicherheitsskibindung - Google Patents

Sicherheitsskibindung Download PDF

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Publication number
EP0091574B1
EP0091574B1 EP83102744A EP83102744A EP0091574B1 EP 0091574 B1 EP0091574 B1 EP 0091574B1 EP 83102744 A EP83102744 A EP 83102744A EP 83102744 A EP83102744 A EP 83102744A EP 0091574 B1 EP0091574 B1 EP 0091574B1
Authority
EP
European Patent Office
Prior art keywords
ski
pressure
sole
bolt
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
Application number
EP83102744A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0091574A1 (de
Inventor
Gerhard Oberleitner
Theodor Nitschko
Engelbert Spitaler
Wilfried Riss
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.)
TMC Corp
Original Assignee
TMC Corp
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 TMC Corp filed Critical TMC Corp
Publication of EP0091574A1 publication Critical patent/EP0091574A1/de
Application granted granted Critical
Publication of EP0091574B1 publication Critical patent/EP0091574B1/de
Expired 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

Definitions

  • a safety ski binding of the type mentioned at the outset is described, for example, in DE-A No. 2948277.
  • This safety ski binding consists of a toe piece and a heel holder that can be pivoted about a transverse axis (see in particular FIGS. 1 to 3).
  • a transverse axis of the cross-section of the skier's leg, which is particularly prone to breakage, is assumed here, which is located above the shoe upper and in the longitudinal direction of the ski, approximately in the middle between the front and rear edge of the shoe upper.
  • a first pressure sensor is located between the tip of the shoe sole and the point of contact thereof on the holding jaw, further pressure sensors are arranged below the shoe sole between a sole hold-down device arranged on the heel holder and the top of the shoe sole and between the underside of the shoe sole and the step spur of the heel holder.
  • a trigger signal is generated in a computer circuit.
  • the object of the invention is therefore to construct a safety ski binding of the type mentioned at the outset in such a way that it is possible to detect all the dangerous forces acting on the skier's leg.
  • the holding jaw has two sole holders which embrace the sole of the ski boot from above and to the side and which are pivotably pivoted slightly to one another perpendicular to the top of the ski, which in turn can also be pivoted slightly by a further bolt which runs transversely to the longitudinal direction of the ski and parallel to the top of the ski , whereby to measure the transverse and longitudinal forces acting horizontally to the top of the ski, the sole holders are each provided with a pressure piston which can be acted upon either by a differential pressure measuring cell or by an absolute pressure measuring cell, and to measure the forces acting vertically to the top of the ski, at least one of the sole holders on its area facing away from the ski boot with one is provided with a further pressure pin which can be acted upon, and that on the further bolt, which runs transversely to the longitudinal direction of the ski and parallel to the top of the ski, at a distance from the ski a footplate is articulated slightly pivotably on the upper side and carries at its end region facing away from the ski boot a
  • the measures according to the invention allow the forces occurring in the region of the holding jaw to be recorded.
  • absolute pressure transducers are provided, a force acting transversely to the longitudinal direction and in the longitudinal direction of the ski via both pressure pistons arranged on the sole holders, in each case by subtraction or addition of the measurement variables supplied by the absolute pressure transducers.
  • the pressure pin arranged on the sole holder or on the tread plate interacts with the further absolute pressure measuring cell. If it is not necessary to measure the force occurring in the longitudinal direction of the ski, the differential pressure load cell, which interacts with the two pressure pistons arranged on the sole holders, is used to record the forces acting transversely to the longitudinal direction of the ski.
  • An advantageous embodiment of the invention is that the pressure pin of the sole holder acts from above and the pressure pin of the tread plate from below acts on a membrane of a closed measurement container filled with hydraulic fluid, which runs approximately parallel to the top of the ski, with a further side surface of the measurement container on the membrane the further absolute pressure cell is formed.
  • a structurally simple type of transmission of the forces acting in the vertical direction either on the sole holder or on the tread plate in the area of the bale is given to the absolute pressure measuring cell.
  • the force that occurs in each case is measured as an absolute force, and the measured variable supplied by the absolute pressure measuring cell is further processed in the computer circuit.
  • the bolt running perpendicular to the top of the ski is held in a bearing body which is mounted on the further bolt running parallel to the top of the ski and transversely to the longitudinal direction of the ski, which means of its end areas in Fastening tabs of a ski-fixed housing that holds the pressure load cell is held.
  • tread plate which has two holding straps running perpendicular to the top of the ski and parallel to the longitudinal axis of the ski, each of which engages in the area between the bearing body and one of the fastening straps of the housing and by means of which the tread plate is articulated on the bolt.
  • each sole holder is provided with a holding arm on its area facing away from the ski boot, to which the pressure piston is attached pointing in the direction of the longitudinal axis of the ski , and that the pressure pistons rest against a membrane, which membrane is closed on one side by cylinders filled with hydraulic fluid, the other two sides of which are formed either by one of the membranes of the differential pressure transducer or by the membranes of the two absolute pressure transducers, which are aligned with one another.
  • FIG. 1 to 3 show an exemplary embodiment of a baking according to the invention
  • FIG. 1 shows a side view in section
  • FIG. 2 shows a top view of FIG. 1
  • FIG. 3 shows a front view in section along line 111-111 of FIG. 2.
  • a housing 2 is fastened on a ski 1.
  • the housing 2 can also be firmly connected to the ski 1 with the interposition of a base plate, not shown.
  • three pressure cells 3, 4, 5 are installed, for example screwed in.
  • the pressure load cell 3 is located in the area of the housing 2 facing the ski tip, the two further pressure load cells 4, 5 are installed in alignment with one another approximately in the middle of the jaw.
  • the pressure load cells 3, 4, 5 are absolute pressure load cells, with the pressure load cell 3 for detecting forces acting in the vertical direction to the ski level, the two further pressure load cells 4, 5 for detecting the horizontal direction in the ski plane, i.e. forces acting in the longitudinal direction of the ski are also provided.
  • the pressure cell 3 is held in the housing 2 such that its steel membrane 3a is arranged vertically to the top of the ski and also vertically to the longitudinal axis of the ski.
  • the steel membrane 3a forms the one wall of a closed measuring container 25 filled with hydraulic fluid, which extends essentially parallel to the steel membrane 3a and the two side surfaces of which run parallel to the top of the ski are each formed by a flexible membrane 6, 7.
  • the lower membrane 6 can be acted on from the outside by a pressure pin 8 which is fastened to an extension 9a of a tread plate 9, the upper membrane 7 can be acted on by a pressure pin 15 which is fastened to a sole holder 13.
  • the middle section 9c of the tread plate 9 adjoining the tread area 9b carries a holding tab 9d symmetrical to the longitudinal axis of the ski, which holding tabs 9d also run at right angles to the top of the ski.
  • two fastening tabs 2a are provided which overlap the two retaining tabs 9d of the tread plate 9.
  • the bolt 11 also passes through the retaining tabs 9d of the tread plate 9, the tread plate 9 being mounted on the bolt 11 in such a way that there is a gap, albeit a small one, between the underside of the tread plate 9 and the upper side 1 of the ski.
  • the tread plate 9 is thus allowed a slight pivoting movement around the bolt 11. If no ski boot is inserted in the cheeks, which position is shown, for example, in FIG. 1, the tread plate 9 is on the one hand by a pressure pin 8 acting on the flexible membrane 6 of the measuring container 25 and on the other hand by a pressure plate 9, at least in its housing 2 covered area surrounding elastic sleeve 12 held in a position parallel to the top of the ski.
  • the cuff 12 also prevents snow and dirt from entering the area between the tread plate 9 and the top of the ski. Furthermore, a bearing body 10 is pivotally mounted on the bolt 11 between the two retaining tabs 9d of the tread plate 9, the bearing body 10 being arranged at a distance from the top of the tread plate 9 and, in the present exemplary embodiment, being designed as a cuboid block. The function of the bearing body 10 will be discussed later.
  • the pressure pin 15 resting on the upper membrane 7 of the measuring container 25 is fastened to an arm 13a of the sole holder 13.
  • Each sole holder 13, 14 has an area which at least partially covers the bearing body 10 from above, these areas also overlapping one another. By means of these two overlapping regions of the two sole holders 13, 14, these are mounted on a common axis, which is designed as a further bolt 16.
  • the bolt 16 is held in the bearing body 10 perpendicular to the top of the ski.
  • Each sole holder 13, 14 has a holding arm 13c, 14c, each holding arm 13c, 14c carrying a pressure piston 17, 18.
  • the two pressure pistons 17, 18 point from the associated holding arm 13c, 14c of the sole holder 13, 14 in rich direction of the longitudinal axis of the ski and run parallel to the top of the ski at right angles to the longitudinal axis of the ski.
  • Each pressure piston 17, 18 rests on a flexible membrane 21, 22, which membranes 21, 22 each seal a cylinder 19, 20 filled with hydraulic fluid on one side.
  • the surface of each cylinder 19, 20 facing away from the pressure piston 17, 18 is formed by one of the membranes of the two pressure cells 4, 5.
  • Piezoresistive and temperature-compensated load cells are advantageously used as pressure load cells.
  • the voltage generated by the piezoelectric crystal is processed in a computer circuit (amplified, filtered, etc.), which is accommodated either in the toe or in the heel holder, not shown. If the signals delivered by the pressure transducers 3, 4, 5 exceed certain values that can be stored in the computer and which, according to the trigger values, correspond to data specific to the user, such as weight, shoe size, tibia head diameter, the computer issues a trigger command and one more Heel holder, not shown, is unlocked, for example, by means of an electromagnet, which releases the ski boot inserted into the binding via the heel holder.
  • the computer and the trigger mechanism are powered by batteries in the heel holder or in the ski. Since the heel holder is not the subject of the present invention, its further construction is not discussed in detail. Of course, the heel holder is also equipped with force measuring sensors, so that the lock is also activated and the ski boot is released when inadmissibly high forces are transferred from the heel to the heel holder.
  • the skier When the ski boot is inserted into the binding, the skier loads the tread plate 9 due to his weight over the ski boot. The force thus transmitted to the pressure cell 3 is taken into account in the computer circuit by the stored body weight of the skier. Due to the contact pressure of the heel holder, the sole holders 13, 14 also exert a certain force on the pressure load cells 4, 5, which is also taken into account in the computer circuit from the outset.

Landscapes

  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP83102744A 1982-03-30 1983-03-19 Sicherheitsskibindung Expired EP0091574B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0123082A AT372866B (de) 1982-03-30 1982-03-30 Sicherheitsskibindung
AT1230/82 1982-03-30

Publications (2)

Publication Number Publication Date
EP0091574A1 EP0091574A1 (de) 1983-10-19
EP0091574B1 true EP0091574B1 (de) 1985-05-22

Family

ID=3509416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102744A Expired EP0091574B1 (de) 1982-03-30 1983-03-19 Sicherheitsskibindung

Country Status (5)

Country Link
US (1) US4516791A (ja)
EP (1) EP0091574B1 (ja)
JP (1) JPS58178237A (ja)
AT (1) AT372866B (ja)
DE (1) DE3360201D1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9111214U1 (de) * 1991-09-10 1992-11-12 Marker Deutschland GmbH, 8116 Eschenlohe Sicherheits-Skibindung mit einer elektronischen Schaltung
US6095547A (en) * 1995-08-01 2000-08-01 K-2 Corporation Active piezoelectric damper for a snow ski or snowboard
US5775715A (en) * 1995-08-01 1998-07-07 K-2 Corporation Piezoelectric damper for a board such as a snow ski or snowboard
FR2892314B1 (fr) * 2005-10-20 2010-10-15 Salomon Sa Fixation de securite

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR89533E (ja) * 1965-08-25
AT324903B (de) * 1971-11-25 1975-09-25 Smolka & Co Wiener Metall Skibindung
FR2218913B1 (ja) * 1973-02-22 1978-01-06 Ver Baubeschlag Gretsch Co
FR2225185B1 (ja) * 1973-04-10 1979-03-02 Lautier Dominique
FR2309257A1 (fr) * 1975-04-30 1976-11-26 Salomon & Fils F Fixation de securite pour ski
FR2413915A1 (fr) * 1978-01-10 1979-08-03 Beyl Jean Joseph Alfred Fixation de securite pour ski
AT362272B (de) * 1978-07-11 1981-04-27 Tyrolia Freizeitgeraete Skibindung
DE2901110A1 (de) * 1979-01-12 1980-07-31 U V G Unternehmensberatungs Un Vorderbacken fuer sicherheits-skibindungen
DE2925375A1 (de) * 1979-06-22 1981-01-29 Marker Hannes Elektronische sicherheits-skibindung
DE2948277A1 (de) * 1979-11-30 1981-06-11 Geze Gmbh, 7250 Leonberg Sicherheitsskibindung
US4463968A (en) * 1980-06-24 1984-08-07 The Regents Of The University Of California Method for programmed release in ski bindings
AT372288B (de) * 1981-05-04 1983-09-26 Tyrolia Freizeitgeraete Sicherheitsschibindung

Also Published As

Publication number Publication date
AT372866B (de) 1983-11-25
US4516791A (en) 1985-05-14
JPH0252973B2 (ja) 1990-11-15
JPS58178237A (ja) 1983-10-19
DE3360201D1 (en) 1985-06-27
EP0091574A1 (de) 1983-10-19
ATA123082A (de) 1983-04-15

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