EP3199047A1 - Skischuh - Google Patents

Skischuh Download PDF

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Publication number
EP3199047A1
EP3199047A1 EP17153354.0A EP17153354A EP3199047A1 EP 3199047 A1 EP3199047 A1 EP 3199047A1 EP 17153354 A EP17153354 A EP 17153354A EP 3199047 A1 EP3199047 A1 EP 3199047A1
Authority
EP
European Patent Office
Prior art keywords
ski boot
ski
boot
release element
release
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Withdrawn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
EP17153354.0A
Other languages
English (en)
French (fr)
Inventor
Jonathan Webb
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3199047A1 publication Critical patent/EP3199047A1/de
Withdrawn legal-status Critical Current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
    • A63C9/088—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with electronically controlled locking devices
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0415—Accessories
    • A43B5/0417—Accessories for soles or associated with soles of ski boots; for ski bindings
    • 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
    • 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
    • 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
    • A63C9/086—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings using parts which are fixed on the shoe of the user and are releasable from the ski binding
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/12—Electrically powered or heated
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/18—Measuring a physical parameter, e.g. speed, distance
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/22—Radio waves emitting or receiving, e.g. remote control, RFID

Definitions

  • This invention relates to a ski boot and particularly, but not exclusively, relates to a ski boot with a speed dependent release system that releases the ski boot from ski bindings when a predetermined release force is applied between the ski boot and the ski binding.
  • Conventional systems for releasing ski boots from skis provide release from ski bindings when either a large twisting force, or a large forward moment, is applied between the ski boot and the ski binding.
  • release systems are able to determine the speed of the skier, and adjust the preload on the bindings dependent on the speed of the skier or the inclination of the skis.
  • these release systems require skis with a specialised binding.
  • a ski boot comprising a release element for releasable attachment of the boot to a ski, the release element being moveable from a first engaged position in which the release element is capable of retaining the ski on the boot, to a second released position in which the ski is released from the boot, in response to a load exceeding a threshold load applied between the ski boot and a ski.
  • the ski boot may comprise a controller which may adjust the threshold load at which the release element can move from the said first position to the said second position.
  • the controller may adjust the threshold load to release the boot from the ski dependent on the speed of the boot, as determined by a speed detector.
  • the release element may be adapted to engage a binding fixed to the ski.
  • the binding may be a conventional ski binding.
  • One or more release elements may be attached to the boot at any point.
  • a first release element may be attached at a heel of the boot and a second release element may be attached at a toe of the boot.
  • the release element may be connected to the boot by any means which allows relative movement between the release element and the rest of the boot.
  • the release element may be attached by a sliding joint, a pivot joint or ball joint.
  • Control over the release element may be governed by a mechanical and/or electrical system.
  • a mechanical system may comprise a modified ski binding mechanism, where the weight and size of the skier is used to set the threshold release load, and the electrical system may determine the force required to release a ski boot from its binding dependent on the speed of the skier, and then adjust the mechanical system accordingly.
  • the ski boot may comprise a locking mechanism for holding the release element in the first position.
  • the locking mechanism may be switched from a locked to an unlocked condition by the controller when the threshold load is applied between the boot and the ski.
  • the controller may comprise an actuator to adjust the preload on the release element.
  • the actuator may, for example, be electric, hydraulic and/or pneumatic.
  • the speed detector may comprise an accelerometer or speedometer and may be located in the ski boot.
  • the speed detector may use GPS tracking to determine the motion of the skier.
  • the speed detector may be provided in a mobile phone or other hand held device.
  • a ski boot 1 with a ski release system comprises a release element 2, a locking mechanism 4, a controller 5, a battery power supply 9, and a speed detector 10 which are all fitted within a sole of the boot 1.
  • the power supply 9 provides DC electrical power to the locking mechanism 4, controller 5 and speed detector 10.
  • the release element 2 is capable of moving from a first position in which the boot is secured to a ski, to a second position in which the boot is released from the ski.
  • the release element 2 is pivotally connected to the boot at the heel of the boot, but in alternative embodiments one or more release elements (not shown) may be provided at any other position on the boot.
  • a release element may be provided at the toe of the boot in addition to, or instead of, providing a release mechanism at the heel.
  • the release element 2 engages a binding 3 fixed to a ski 7 by means of a conventional ski boot lug 6, so that the boot can engage a conventional ski binding without requiring modification of the ski binding or the ski 7.
  • the release element 2 is pivotally connected to the boot 1 by means of a pivot pin 8, comprising a bolt screwed into a threaded blind bore formed in the boot.
  • the bolt is countersunk into the release element 2 so that it does not contact the ski 7 in use.
  • the release element 2 may be connected to the boot 1 by a sliding joint, or it may rotate around a ball and socket joint (not shown).
  • the controller 5 is configured to receive data indicative of the speed of the ski boot 1. In the embodiment illustrated in Figure 1 , this data is generated by a speed detector 10 located within the boot 1. In alternative embodiments, the speed detector 10 may be located remotely from the boot 1, for example on the skier.
  • controller 5 may make use of existing appliances that possess the capability to calculate speed, such as a mobile phone or other hand held device capable of detecting the motion of the skier.
  • the speed detector 10 may comprise an accelerometer and/or a speedometer and/or a gyro speed sensor.
  • the controller 5 may be capable of determining whether motion is due to skiing, and may make use of the speed detector 10 in order to determine this.
  • the controller 5 may be able to detect a cyclic motion of a ski boot indicative of side stepping a slope or a reciprocating motion indicative of cross country skiing.
  • the controller 5 varies the force at which the boot will be released from the skis in relation to the speed data that has been received by the controller 5 from the speed detector 10.
  • the relationship between boot speed and release force is that the lower the speed, the lower the release force that is set by the controller 5.
  • there may be a plurality of levels of release force the changeover between force levels being triggered by changes in the speed of the skier. For example, when the boot is travelling at less than five miles an hour the release element may be set at a first release load. From five to twenty miles an hour it may be set at a second release load, which may be higher than the first release load, and over twenty miles an hour it may be set at a third release load, which may be greater than the second release load.
  • the controller 5 regulates the force at which the boot will be released from the skis using at least one actuator 12.
  • the mechanism of the actuator 12 may, for example, be electric, pneumatic or hydraulic.
  • actuators 12 are located on either side of an inner flange 14 of the release element 2. Plungers 13 of the actuators 12 engage the release element directly.
  • the force at which each of the plungers 13 can be driven into the main body 15 of the respective actuator 12 is adjusted by a respective stepper motor 17 which, when energised, rotates a threaded shaft 19 engaged in a thread formed in a spring guide 21 of the main body 15.
  • a respective stepper motor 17 which, when energised, rotates a threaded shaft 19 engaged in a thread formed in a spring guide 21 of the main body 15.
  • the threaded spring guide 21 travels towards the plunger 13 it compresses a spring 23 and thereby increases the force on the plunger 13.
  • the tension in the spring may be adjusted in this way to change the resistance to rotation of the release element 2.
  • the tension in each spring 23 is set by the respective stepper motor 17 such that the plunger 13 can be driven into the main body 15 if a force exceeding a threshold twisting force is applied between the ski boot and the ski.
  • the plunger 13 is only able to move a predetermined distance defined by an end stop 25 formed by the free end of the threaded shaft 19.
  • the end stop 25 limits the amount of rotation of the release element 2.
  • the tension in each spring 23 is set so that the plungers 13 are substantially fixed and the release element 2 cannot rotate. This substantially fixed state of the plungers 13 may be the default setting when the controller determines that the motion of the boot is not due to skiing, or the control system fails, for example when a battery powering the controller becomes depleted. Under these conditions, the boot 1 would behave as a regular ski boot and release of the boot 1 from a ski 7 would be dependent on the preload set on the conventional bindings 3.
  • means may be provided to reprogram the controller 5, 105 in the boot 1, so that the threshold force at which the release element can move to the released position is changed relative to the speed of the boot. For example, if the boot is worn by an inexperienced skier, the threshold force may be set lower for a given speed, than if the boot is worn by an experienced skier. Reprogramming may be carried out remotely, for example by using an app on a mobile phone.
  • a solenoid 112 operates to set a lock pin 128 in a locked position in an opening 132 formed in the release element 102. In this locked position, the release element 102 is unable to rotate.
  • the lock pin 128 is moved to an unlocked position, and the release element 102 is able to rotate.
  • the lock pin 128 is attached to a plunger 113 of the solenoid 112.
  • the solenoid 112 is deactivated and the pin 128 is forced into the opening 132 in the release element 102 by the spring 123, so that the release element 102 is unable to rotate.
  • the solenoid 112 is mounted in the ski boot with some play and abuts one or more sensors 130 mounted in the ski boot for detecting a force applied between the ski boot 1 and the ski 7.
  • the force is transmitted to the sensors 130 from the release element 102 via the lock pin 128 and plunger 113 which causes the solenoid 112 to be forced against one of the sensors 130.
  • This sensor 130 outputs a force value to the controller 105.
  • the controller 105 determines whether the force is excessive (i.e. it is above a speed related threshold force).
  • the controller 105 causes the solenoid 112 to be energised and the plunger 113 is retracted into the body of the solenoid 112, thereby releasing the lock pin 128 from the opening 132. This allows the release element 102 to rotate, and the ski boot 1 to be released from the ski bindings 3.
  • the allowable rotation of the release element is constrained so as to prevent excessive rotation. This may be achieved as depicted in Figures 3A (locked state) and 3B (unlocked state).
  • the lock pin 128 has been removed from the opening 132 which allows the release element 102 to rotate. Rotation of the release element 102 is restricted by corresponding tangs (124,125).
  • the tangs 125 are situated either side of the opening 132 on the release element 102 and prevent excessive rotation of the release element 102.
  • a side face of the tang 125 comes into contact with a side face of the tang 124, preventing rotation beyond this point.
  • the applied force at which the release element is allowed to rotate may be varied dependent on the speed of the skier. At low speeds, the system would adjust so that less force would be required for the release element 102 to be allowed to rotate.
  • ski boots 1 In the use of ski boots 1, in accordance with the present invention, the ski boots are attached to respective skis 7 by the engagement of outer lugs 6, 106 on each boot, which form part of the respective release elements 2, 102.
  • the lugs 6, 106 on the boots can therefore engage conventional ski bindings 3.
  • Mechanical settings on the conventional bindings 3 will have been set with respect to the weight and size of the skier, to establish the release force at which the binding 3 should release.
  • the controller 5, 105 adjusts the threshold force at which the release element 2, 102 can release from the ski to a minimum setting which is lower than the release force setting of the bindings.
  • the threshold force at which the release element 2, 102 can release the boot 1 from the binding is varied using the actuator 12, 112 controlled by the controller 5, 105.
  • the speed detector 10 detects the speed at which the boot 1 is travelling.
  • the controller 5, 105 uses this information to determine the optimum threshold force at which the skis 7 should be released from the ski boots 1.
  • the release element 2, 102 in each boot 1 will move to the release position, and hence the boot 1 will break free from the ski 7. This will prevent the skier being injured in a fall whilst stationary or when moving slowly.
  • Conventional ski bindings used with conventional ski boots may not release in such a fall, potentially causing injury to the skier.
  • the threshold force at which the release element 2 moves from the first engaged position to the second released position is increased, and may even be set to exceed the release force set on the bindings, since at high speed the bindings may work effectively to protect the skier from injury.
  • the boot 1 can be used with a simpler and less expensive binding which has no mechanism itself to release the ski boot 1 under load.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP17153354.0A 2016-01-26 2017-01-26 Skischuh Withdrawn EP3199047A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1601386.4A GB2546738A (en) 2016-01-26 2016-01-26 Ski boot

Publications (1)

Publication Number Publication Date
EP3199047A1 true EP3199047A1 (de) 2017-08-02

Family

ID=55534931

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17153354.0A Withdrawn EP3199047A1 (de) 2016-01-26 2017-01-26 Skischuh

Country Status (2)

Country Link
EP (1) EP3199047A1 (de)
GB (1) GB2546738A (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494768A (en) * 1980-06-24 1985-01-22 The Regents Of The University Of California Apparatus for programmed release in ski bindings
US4640026A (en) * 1983-11-05 1987-02-03 Bernhard Kirsch Ski boot with release mechanism
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.
DE102008006069A1 (de) * 2008-01-25 2009-07-30 Technische Universität München Skischuh
US20090224526A1 (en) * 2008-03-04 2009-09-10 Heinz Bildner Electronically releasable boot for sport-utensils
US20140257568A1 (en) * 2011-02-09 2014-09-11 Ipcomm Llc Adaptive Ski Bindings System
WO2015166143A1 (fr) * 2014-05-02 2015-11-05 Brison S.A. Dispositif de fixation securisee d'une chaussure sur un ski

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT302122B (de) * 1968-01-12 1972-10-10 Smolka & Co Wiener Metall Sicherheitsskibindung
DE2023169C2 (de) * 1970-05-12 1982-07-22 Hannes 8100 Garmisch-Partenkirchen Marker Sicherheitsskibindung
AT311229B (de) * 1971-03-12 1973-11-12 Smolka & Co Wiener Metall Skibindung
AT325485B (de) * 1973-06-07 1975-10-27 Smolka & Co Wiener Metall Auslöseskibindung
FR2718048B1 (fr) * 1994-03-30 1996-05-31 Salomon Sa Elément et ensemble de retenue d'une chaussure sur une planche de glisse.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494768A (en) * 1980-06-24 1985-01-22 The Regents Of The University Of California Apparatus for programmed release in ski bindings
US4640026A (en) * 1983-11-05 1987-02-03 Bernhard Kirsch Ski boot with release mechanism
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.
DE102008006069A1 (de) * 2008-01-25 2009-07-30 Technische Universität München Skischuh
US20090224526A1 (en) * 2008-03-04 2009-09-10 Heinz Bildner Electronically releasable boot for sport-utensils
US20140257568A1 (en) * 2011-02-09 2014-09-11 Ipcomm Llc Adaptive Ski Bindings System
WO2015166143A1 (fr) * 2014-05-02 2015-11-05 Brison S.A. Dispositif de fixation securisee d'une chaussure sur un ski

Also Published As

Publication number Publication date
GB201601386D0 (en) 2016-03-09
GB2546738A (en) 2017-08-02

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