EP0469453A1 - Ski binding with a device for displaying the safety load for the release of a ski boot - Google Patents

Ski binding with a device for displaying the safety load for the release of a ski boot Download PDF

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Publication number
EP0469453A1
EP0469453A1 EP91112409A EP91112409A EP0469453A1 EP 0469453 A1 EP0469453 A1 EP 0469453A1 EP 91112409 A EP91112409 A EP 91112409A EP 91112409 A EP91112409 A EP 91112409A EP 0469453 A1 EP0469453 A1 EP 0469453A1
Authority
EP
European Patent Office
Prior art keywords
binding
screw
constituted
position sensor
safety load
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.)
Withdrawn
Application number
EP91112409A
Other languages
German (de)
English (en)
French (fr)
Inventor
Giorgio Baggio
Antonio Pincin
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.)
Nordica SpA
Original Assignee
Nordica SpA
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 Nordica SpA filed Critical Nordica SpA
Publication of EP0469453A1 publication Critical patent/EP0469453A1/en
Withdrawn legal-status Critical Current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
    • A63C9/0802—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings other than mechanically controlled, e.g. electric, electronic, hydraulic, pneumatic, magnetic, pyrotechnic devices; Remote control

Definitions

  • the present invention relates to a ski binding with a device for displaying the safety load for the release of a ski boot.
  • Ski bindings which have an electronic device displaying data, usually numbers, which indicate to the skier the degree of securing which can be achieved for the ski boot.
  • Some of these bindings have a transducer which is suitable for detecting the force imparted to a spring during the adjustment of the binding, said transducer emitting a signal which, after being appropriately treated, drives an electronic display.
  • a potentiometer is used as a position sensor; said potentiometer is constituted by a slider which can slide in an adapted guide and the movement whereof is interpreted by an appropriate electric circuit, measuring a variation in resistance.
  • the aim of the present invention is therefore to eliminate the disadvantages described above in known types by providing a ski binding wherein it is possible to display, in a precise and therefore as error-free as possible manner, the safety load for the release of a ski boot.
  • an important object is to provide a reliable device and safe in use which provides correct indications as to the safety load set on the binding for the release of the boot.
  • Another important object is to provide a structurally simple binding and easy to industrialize.
  • Not least object is to provide a binding which associates with the preceding characteristics that of having modest costs.
  • a ski binding with a device for displaying the safety load for the release of a ski boot, characterized in that it comprises a position sensor which sends a signal to an electronic circuit for detecting, converting and processing said signal, a display device, a switch and a power source, said position sensor sending said signal according to the variation in the position of a screw for the adjustment of the safety load of said binding.
  • the ski binding which is constituted by at least one coupling element 1 for a ski boot, such as a heel or tip element, has a position sensor 2 which sends a signal to an electric circuit 3, which can be activated by means of an adapted switch 4 accessible to the skier and is powered by means of an adapted power source 5.
  • the electric circuit 3 may comprise control logic unit 6 for detecting, converting and processing the signal arriving from the sensor 2 to send it to a display 7 which can be associated with the ski binding.
  • the position sensor is constituted by a capacitive sensor and therefore by a variable capacitor which has a first plate 8 and a second plate 9 which face one another and are electrically insulated by means of insulating material 10.
  • the first plate 8 is movable and is advantageously constituted by the cylindrical surface of the stem of the screw 11 for adjusting the safety load which can be achieved for the release of a ski boot.
  • Said screw 11 is advantageously rotatably associated at the frame 12 of the coupling element 1, and at least one spring 13 is provided inside said screw; said spring is suitable for presetting, by means of known devices, the degree of securing for the boot.
  • the insulating material 10 is arranged coaxially to the first plate 8, and a second plate 9 is arranged coaxially to said insulating material; said second plate 9 is also cylindrical and is fixed at the frame 12.
  • first and second plates can be constituted by two facing planar surfaces instead of by coaxial cylindrical surfaces.
  • a rotation of the screw 11 is matched by an axial movement of the screw stem and therefore by a movement of the first plate 8, achieving a variation in the degree of interference with respect to the second plate 9.
  • Figures 3 and 4 illustrate an embodiment of the electric circuit 3, which is suitable for measuring the capacitance of the capacitor constituted by the first and second plates; said circuit has advantages in terms of insensitivity to the stability and precision of certain important circuit elements, since it is based on the conversion of a capacitance measurement into a time measurement.
  • Two measurement steps are thus distinguished which perform, in combination, a double current integration.
  • a first step occurs in which a reference capacitor C 1 is charged at a constant current I which is equal to the ratio between the voltage V ; and a resistor R across a current integrator 14, the output whereof reaches the final voltage V f .
  • the capacitor with unknown capacitance C is also raised to the same final voltage, which is given by the formula
  • the subsequent step entails the discharge of the capacitor being measured, at the end of which the capacitor with unknown capacitance C is arranged in parallel to the capacitor C i , and the voltage -V ; is applied to the input of the integrator 14 in order to perform the constant-current discharge of the parallel capacitor C 1 + C.
  • an assembly constituted by an oscillator 16 (time base) and by a counter 17 for the pulses generated by the oscillator.
  • the display of the number thus obtained is performed according to the type of display 7 used.
  • Said inductive sensor can be constituted by two mutually coupled coaxial inductors, one being fixed and the other one being movable, with a degree of interfacing which can vary with the position of the safety load adjustment screw, so that the mutual inductance of the overall inductor varies.
  • An adapted electric circuit finally detects the inductance and/or mutual inductance variation induced by the movement of the load adjustment screw, and activates its appropriate display.
  • Figure 6 illustrates a further embodiment, wherein the position sensor 102 is constituted by a plurality of microswitches 118, each of which is arranged at one of the intervals into which the overall stroke of the screw 111 is divided.
  • the identification of said intervals may be performed by means of a combination of fixed contacts 121, which are present at the frame 112 of the coupling element 101, and of movable contacts, such as brushes 119 which are associated at an adapted movable tab 120 which protrudes axially to the screw 111 and interacts with the fixed contacts by sliding.
  • the tab 120 in fact performs a translatory motion, affecting said fixed contacts, upon a rotation imparted to the screw 111, thus progressively providing the closure between the movable contacts and the fixed contacts.
  • figures 7 and 8 illustrate an embodiment for the angular differentiation of the rotation of the screw, wherein the screw 211 has movable contacts, constituted by brushes 219, which protrude radially therefrom and close on fixed contacts 221 which are provided at a bush 222 which is associated with the frame 212 of the ski binding.
  • the numbers of the axial and angular contacts selected by the respective movable contacts are encoded so as to provide an univocal and progressive indication of the position of the adjustment screw.
  • the invention has achieved the intended aim and objects, a device having been obtained which allows to display to the skier a datum which is proportional to the safety load set for the release of a boot which can be associated with the binding.
  • the invention is furthermore structurally simple as well as reliable and safe in use.
  • the activation of the data on the display occurs continuously and automatically once the binding securing adjustment screw alone has been activated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Road Signs Or Road Markings (AREA)
EP91112409A 1990-07-30 1991-07-24 Ski binding with a device for displaying the safety load for the release of a ski boot Withdrawn EP0469453A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8260890 1990-07-30
IT08260890A IT1242751B (it) 1990-07-30 1990-07-30 Attacco da sci con visualizzatore del carico di sicurezza per lo sgancio di un scarpone da sci

Publications (1)

Publication Number Publication Date
EP0469453A1 true EP0469453A1 (en) 1992-02-05

Family

ID=11319061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91112409A Withdrawn EP0469453A1 (en) 1990-07-30 1991-07-24 Ski binding with a device for displaying the safety load for the release of a ski boot

Country Status (3)

Country Link
EP (1) EP0469453A1 (it)
JP (1) JPH04244103A (it)
IT (1) IT1242751B (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2694888A1 (fr) * 1992-08-19 1994-02-25 Varpat Patentverwertung Dispositif de contrôle et/ou de commande pour un dispositif de fixation entre une chaussure et un dispositif de sport.
FR2850294A1 (fr) 2003-01-29 2004-07-30 Atomic Austria Gmbh Fixation de ski de securite comportant une machoire avant et une machoire arriere et un montage electronique.
FR2850293A1 (fr) 2003-01-29 2004-07-30 Atomic Austria Gmbh Fixation de ski de securite comportant une machoire avant et une machoire arriere et un montage electronique ainsi qu'un dispositif indicateur.
WO2004078282A2 (de) * 2003-03-04 2004-09-16 Marker Deutschland Gmbh Auslösbare bindung mit elektronischer steuerung für ski bzw. snowboards
DE102005005543A1 (de) * 2005-02-07 2006-08-24 Heinz Bildner Elektronisch auslösbarer Skischuh

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020061662A (ko) * 2001-01-17 2002-07-25 한국산업안전공단산업안전보건연구원 안전화의 하중 경보장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1578898A1 (de) * 1965-08-06 1970-07-02 Salomon & Fils F Magnetische Ski-Sicherheitsbindung
FR2470618A1 (fr) * 1979-11-30 1981-06-12 Geze Gmbh Fixation de ski de securite
WO1989004701A1 (en) * 1987-11-27 1989-06-01 Implementors Overseas Limited Self-releasing ski-binding unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1578898A1 (de) * 1965-08-06 1970-07-02 Salomon & Fils F Magnetische Ski-Sicherheitsbindung
FR2470618A1 (fr) * 1979-11-30 1981-06-12 Geze Gmbh Fixation de ski de securite
WO1989004701A1 (en) * 1987-11-27 1989-06-01 Implementors Overseas Limited Self-releasing ski-binding unit

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325892B4 (de) * 1992-08-19 2008-09-25 Varpat Patentverwertungs Ag Anzeigevorrichtung für eine Kupplungsvorrichtung zwischen einem Schuh und einem einem Sportgerät, insbesondere Schibindung
AT404901B (de) * 1992-08-19 1999-03-25 Varpat Patentverwertung Anzeigevorrichtung für eine kupplungsvorrichtung zwischen einem schuh und einem sportgerät, insbesondere schibindung
DE4325892B8 (de) * 1992-08-19 2009-01-08 Varpat Patentverwertungs Ag Anzeigevorrichtung für eine Kupplungsvorrichtung zwischen einem Schuh und einem Sportgerät, insbesondere Schibindung
FR2694888A1 (fr) * 1992-08-19 1994-02-25 Varpat Patentverwertung Dispositif de contrôle et/ou de commande pour un dispositif de fixation entre une chaussure et un dispositif de sport.
AT500290B1 (de) * 2003-01-29 2008-10-15 Atomic Austria Gmbh Schibindung mit einem vorder- und einem fersenbacken und einer elektronischen schaltungsanordnung
AT500290A1 (de) * 2003-01-29 2005-11-15 Atomic Austria Gmbh Sicherheitsschibindung mit einem vorder- und einem fersenbacken und einer elektronischen schaltungsanordnung
US7025373B2 (en) 2003-01-29 2006-04-11 Atomic Austria Gmbh Safety ski binding incorporating a toe and a heel binding and an electronic circuit as well as a display device
US7063345B2 (en) 2003-01-29 2006-06-20 Atomic Austria Gmbh Safety ski binding incorporating a toe and a heel binding and an electronic circuit arrangement
FR2850293A1 (fr) 2003-01-29 2004-07-30 Atomic Austria Gmbh Fixation de ski de securite comportant une machoire avant et une machoire arriere et un montage electronique ainsi qu'un dispositif indicateur.
FR2850294A1 (fr) 2003-01-29 2004-07-30 Atomic Austria Gmbh Fixation de ski de securite comportant une machoire avant et une machoire arriere et un montage electronique.
DE102004001544B4 (de) * 2003-01-29 2013-02-28 Atomic Austria Gmbh Sicherheitsschibindung mit einem Vorder- und einem Fersenbacken und einer elektronischen Schaltungsanordnung sowie einer Anzeigevorrichtung
DE102004001545B4 (de) * 2003-01-29 2013-02-28 Atomic Austria Gmbh Sicherheitsschibindung mit einem Vorder- und einem Fersenbacken und einer elektronischen Schaltungsanordnung
WO2004078282A3 (de) * 2003-03-04 2004-12-02 Marker Deutschland Gmbh Auslösbare bindung mit elektronischer steuerung für ski bzw. snowboards
WO2004078282A2 (de) * 2003-03-04 2004-09-16 Marker Deutschland Gmbh Auslösbare bindung mit elektronischer steuerung für ski bzw. snowboards
DE102005005543A1 (de) * 2005-02-07 2006-08-24 Heinz Bildner Elektronisch auslösbarer Skischuh
DE102005005543A9 (de) * 2005-02-07 2007-02-01 Heinz Bildner Elektronisch auslösbarer Skischuh

Also Published As

Publication number Publication date
IT1242751B (it) 1994-05-17
JPH04244103A (ja) 1992-09-01
IT9082608A0 (it) 1990-07-30
IT9082608A1 (it) 1992-01-30

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