EP0343302A1 - Schiausrüstung - Google Patents

Schiausrüstung Download PDF

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Publication number
EP0343302A1
EP0343302A1 EP88401299A EP88401299A EP0343302A1 EP 0343302 A1 EP0343302 A1 EP 0343302A1 EP 88401299 A EP88401299 A EP 88401299A EP 88401299 A EP88401299 A EP 88401299A EP 0343302 A1 EP0343302 A1 EP 0343302A1
Authority
EP
European Patent Office
Prior art keywords
ski
interface
active
shoe
cam
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Withdrawn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
EP88401299A
Other languages
English (en)
French (fr)
Inventor
Jean Bataille
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.)
BATAILLE INDUSTRIE SA
Original Assignee
BATAILLE INDUSTRIE SA
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 BATAILLE INDUSTRIE SA filed Critical BATAILLE INDUSTRIE SA
Publication of EP0343302A1 publication Critical patent/EP0343302A1/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Withdrawn legal-status Critical Current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
    • A63C9/086—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
    • A63C11/00—Accessories for skiing or snowboarding
    • A63C11/16—Special devices on boots for fastening skis thereto
    • 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
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0846—Details of the release or step-in mechanism
    • 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
    • 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
    • A63C9/08564—Details of the release mechanism using cam or slide surface
    • 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
    • A63C9/08578—Details of the release mechanism using a plurality of biasing elements

Definitions

  • the present invention relates to ski equipment, that is to say the means for securing the skis to the feet of a skier, while also allowing him to use his shoes for walking in comfortable conditions.
  • the present invention proposes to create a ski equipment making it possible to fix the skis to the feet of a skier by means of various means, without the need for usual ski boots but allowing the use of boots flexible facilitating walking and, more generally, having excellent comfort characteristics, both when the boot is attached to the ski and when it is detached, while allowing easy positioning of the skis at the feet of the skier.
  • the invention relates to ski equipment as defined in the first claim.
  • the shoe with a flexible sole can be attached to the ski without this being at the expense of the ease of putting the boot on the ski, and of driving the ski. with the foot, even in extreme conditions and ensuring the skier the same safety as with traditional ski boots and ski bindings.
  • the invention relates to ski equipment composed of a boot 1, an interface 2 and a ski 3.
  • Shoe 1 is a shoe with a flexible sole, that is to say at least articulated at the joint 4 of the foot.
  • the ski 3 comprises a front passive fixing member 5, in the form of a hook fixed to the ski and the tip of which faces forward as well as a rear passive fixing member 6 of shape similar or identical to that of the member passive front 5 but whose tip is turned towards the rear of the ski.
  • front and rear correspond to the orientation of the ski and the boot.
  • the interface 2 comprises a front part 7 carrying a point 8, that is to say a receptacle or member intended to receive the front part 9 of the shoe 1.
  • this point 8 consists of a base 10 receiving the sole of the shoe 1 and rising side walls 11. These side walls 11 have on their inner face hooking means before 12 formed by flared guide tracks at their entrance to receive the hooking members, for example in the form of pins 13, front, of the shoe 1.
  • the front end 9 of the shoe 1 is thus positioned in this point 8.
  • the point 8 has a front end 14 which is used to position the fitted shoe of the interface on the ski 3 after a heaving, against a stop not shown.
  • the front part 7 also carries an active front fixing means 15, intended to cooperate with the passive fixing member 5 of the ski.
  • This fixing means 15 is equipped with a return means described later.
  • This fixing means 15 is movable between a working position shown in Figure 1 and a rest position; it is forced into the working position when the interface 2 is put in place on the ski 3 whereas in the event of heaving or when the interface 2 is removed from the ski 3, this fixing means 15 comes from it even in the rest position under the effect of the return element.
  • the interface also includes a rear part 16 which, like the front part 7, is applied to the top of the ski.
  • This rear part 16 is provided, like the front part 7 with cutouts or orifices not shown allowing the passage of the passive front and rear attachment 5.6.
  • the rear part 16 carries a heel 17 receiving the rear part 48 of the shoe 1, provided with hooking members 19 also in the form of two lateral pins.
  • the heel 17 comprises rear hooking means 20 in the form of guide tracks similar to the front hooking means 12 described above.
  • the heel piece 17 consists of a base plate 21 on which the sole of the shoe rests, as well as two lateral cheeks 22 holding the shoe 1 in the transverse direction; these two cheeks 22 are provided with rear hooking means 20 described above.
  • the rear part 16 also includes an active rear fixing means 23 intended to cooperate with the passive fixing member 6, rear, of the ski 3.
  • This fixing means 23 is equipped with a return element 24 (FIG. 3).
  • This fixing means 23 is movable between a working position like that shown in FIG. 3 and a rest position.
  • the interface 2 also includes a means for locking the boot 1 on the interface 2.
  • this locking means is constituted by a leaf spring 25 or by a U-shaped stirrup, mounted pivoting by one of its branches under the rear part 16. In the normal position, this locking means 25 works like a bending spring and is located above the tip 8. This leaf spring cooperates with a retractable element 26 which hooks it in the lowered position, position in which the toe 8 is locked against the shoe 1. To unlock, it suffices to act in tentatively on the tongue 27 of the element 26 to retract the latter to release the locking member 25 under the effect of its elasticity; this allows the skier to remove the boot 1 from the interface 2, which remains attached to the ski 3.
  • the interface also comprises a trigger control means constituted by two bending bars 30, parallel, the ends of which are anchored in a corresponding housing 31 of the rear part 16.
  • the heel piece 17 is provided on its underside a cam 32 which is placed between the two bending bars 30 by virtue of housings 33 partially matching the section of the bending bars 30.
  • the heel piece 17 can thus carry out a pivoting movement in the transverse direction (FIG. 7) and a pivoting movement back and forth or vice versa ( Figure 8). To effect this movement, a corresponding force must be exerted on the heel 17 to deform the bending bars 30.
  • the hardness of the bending bars 30 is adjusted by the displacement (approximation, spacing) of their supports 34, 35 preferably symmetrical with respect to the cam 32; the movement is controlled for example using a threaded rod 36 with inverted steps, integral with a wheel not shown.
  • the control means also consists of a cam 40 and cam follower 41 connection, the cam 40 being carried by the rear active fixing means 23 while the cam follower 41 is carried by the underside of the heel 17
  • the cam 40 and the cam follower 41 are aligned, that is to say that they occupy only a small width in the transverse direction of the interface 2 and when the heel piece 17 is aligned on the part rear 16, cam 40 and cam follower 41 are located one above the other or one behind the other as will be detailed later. It should be noted that the cam 40 and the cam follower 41 cooperate with one another when the interface 2 is put in place on the ski 3 (the interface 2 itself being carried by the shoe 1).
  • the cam follower 41 of the heel piece 17 acts on the cam 40 and causes the rear active member 23 to tilt to preload the elastic element 24 au- beyond the prestress that would be achieved by the sole movement of setting up the interface 2 on the passive members 5, 6, of the ski 3.
  • the cam follower 41 unlocks the cam 40, and allows the rear fixing means 23 to pivot under the effect of the return force exerted by the return element 24.
  • This pivoting movement causes the preload to drop exerted on the return element 24 and allows the release of the rear fixing means 23 relative to the corresponding passive member 6 or the release of the front fixing means 15 relative to the front passive member 5 ..
  • the heel 17 is composed of a base 21 bordered on each side by a side wall 29 ensuring the holding of the shoe 1. At the heel, this side wall is transformed into two cheeks provided with hooking means 20.
  • the base 21 of the heel 17 is provided with a cutout 28 allowing the free movement of the active rear attachment 23.
  • the drawing also reveals the cam 32 shown in dotted lines.
  • the rear edge of the heel 17 extends downward to cooperate with the rear part 16 and ensure both a certain guiding and a stop forwards.
  • the point 8 consists of a lower part or cross member 10, on which the front part of the sole of the shoe 1 rests.
  • This cross member 10 is bordered on each side of a cheek piece 11 rising, serving to laterally hold the shoe 1.
  • Each of the cheeks 11 is provided on its inner face, facing the shoe, with the front hooking means 12 in the form of a guide path.
  • This point 8 is provided with two holes 50 for the passage of the area 51 of the active fixing means before 15,; while the heel piece 17 simply has a slight notch 52 or shoulder coming to be placed on the axis 53 of the rear active fixing means 23.
  • the fixing member 23 is essentially identical to the front fixing member 15 with the difference, however, that the rear fixing member 23 carries the cam 40, while this cam does not exist on the front fixing member 15.
  • the rear fixing member 23 consists of a body 54 extended on both sides by the axis 53.
  • This body 54 carries a ring 55.
  • the fixing member 23 can pivot in the lateral bearings 52, 56 defined, on the one hand (52), in the heel 17, on the other hand (56), in the rear part 16 and this under the effect of opposing forces exerted, on the one hand, by the return element 24 consisting of a cable loop passing over a stop 57 of the body 54 (FIG. 3) of this binding member 23 and, on the other hand, under the effect of the driving force exerted by the skier when the interface 2 is put in place on the ski 3 .
  • the active fixing member 23 is intended to cover the corresponding passive fixing member 6 of the ski 3.
  • the ring 55 in the rest position, that is to say when the return element 24 is not stretched or is only slightly stretched, the ring 55 is directed downwards (relative to the heel piece 17 and to the lower part 16), and protrudes relative to the bottom surface of the rear part 16.
  • This ring 55 first meets the passive member 6 of the ski 3 and under the effect of the driving force exerted by the skier, the ring 55 rotates the active member 23 which "" rolls “” then in the manner of an involute on this passive member 6 to allow the body 54 of the active fixing member 23 to pass below the spout of the passive fixing member 6.
  • the rear part 16 is a relatively complicated piece, the front end of which is situated substantially in the middle of the shoe at the level of the articulation of the foot, has a connecting eyelet 60. Behind this eyelet 60, the rear part 16 comprises the housing 31 removably receiving the bending bars 30. The bottom of this housing, which is substantially rectangular in shape, has a cup 61 intended to cooperate with a part of ball joint 62 provided on the cam 32 of the heel piece 17.
  • the rear part 16 has a recess 63 for the passage of the passive member 6 as well as for receiving the active fixing member 23.
  • the bearing 56 simply sketched is bordered forwards by cheeks 57 of this part 16 for retaining the active fixing member 23 against the forces exerted by the return element 24.
  • the front part 7 consists of an end in the form of an eyelet 70, intended to be housed under the eyelet 60 of the rear part 16 to form the articulation of the interface.
  • This articulation can be achieved by a rubber block, not shown, or other flexible material passing through the two eyelets 60, 70, while ensuring their connection.
  • the front part 7 has a loop 71 delimiting the housing 72 in which the active fastening member 15 is placed.
  • the front part 7 corresponds to the rear part 16 shortened of the segment serving as a housing 31 for the bending bars 30.
  • the front part 7 also has a bearing (not shown) forming a stop in the direction of traction to receive the corresponding axis 51 of the active fixing member 15, once the axis has been introduced into the holes 50 of the tip. 8; in this case, the tip 8 and the active fixing member 15 constitute an articulated but connected assembly.
  • the entire interface 2 described above is advantageously surrounded by a film of flexible synthetic material which ensures its maintenance, its tightness and its protection against sand, dirt, etc.
  • FIG. 6 partially shows an alternative embodiment of the invention with only the ski 300 and the interface part 200 ensuring the connection with the ski.
  • the rear part and the front part of the interface 200 have been shown in a single piece 201, (their articulation has not been shown but it can nevertheless exist).
  • the active fixing members front and rear, are constituted by a body in the form of rollers 202, 203 crossed by a cable 204 common to the two rollers 202, 203.
  • This cable 204 passes over a support of variable diameter 205, so as to allow the establishment of the interface 200 on the ski and the control of its release.
  • This support 205 is connected to a control member 206, itself connected to an intermediate member 207 connected to the heel not shown.
  • This intermediate member 207 carries a member 208 for adjusting the hardness of a bending member 209 (bending bar) whose fixed end is anchored in the lower part 201. This adjusting member is recalled in its alignment position by the bending bar. Under the effect of the stresses exerted on the foot or on the ski, the intermediate member tends to move relative to the lower plate.
  • This displacement results in an action on the control means which, when the stress exceeds a predetermined threshold, controls the variation of the radius of the pulley; this releases the tension of the cable passing the two active binding members and allows the release of one or the other of these relative to the passive binding members of the ski: thus there is heaving.
  • the second booting operation assumes that the skier has taken off his shoes and that the interface 2 has, as expected, remained attached to the boot 1.
  • the skier then positions his foot furnished with the interface 2 by putting the front end 14 the tip 8 against a stop not shown provided on the ski 3; then it engages the front active member 15 around the front passive member 5.
  • This operation produces only a slight tension of the elastic element 24 of the front active member; this elastic element is preferably common with the elastic element of the rear active member 23.
  • the skier lowers the heel and engages the rear active member 23 on the rear passive member 6 by rolling this rear active member and making it move back. This pivoting results in the tensioning of the return element 24.
  • the cam follower 41 presses on the cam 40 of the active member 23 (since the heel block 17 and the rear part 16 must be aligned), until the cam follower 41 has passed over cam 40 and the trip command is armed.
  • the shoe 1 provided with the interface 2 is then secured to the ski 3.
  • Heaving can be intentional or accidental
  • the skier simply wishes to release his shoe 1 from the interface 2, leaving the interface 2 on the ski 3.
  • he acts on the retractable element 27, for example with his ski pole, so as to unlock the flexion spring 25 and to release the pivoting movement of the toe 8 which allows the fastening member 4 of the boot 1 to be released from the corresponding fastening means 12 the tip 8.
  • the front end 9 of the shoe 1 released from the interface 2 it simply releases its heel 18 by bringing out the rear fastening members 19 of the shoe 1 out of the rear fastening means 20 .
  • accidental heaving occurs between the interface 2 and the ski 3, the interface 2 remaining integral with the boot 1.
  • This stall is caused by a relative movement of the heel 17 relative to the rear part 16 or relative to the ski 3, movement which exceeds a certain torque set by the bending bars 30.
  • the cam follower 41 is placed next to the cam 40 and releases the movement of the latter (torsional movement).
  • the cam follower 41 lifts and thus allows the passage of the cam 40.
  • the cam 40 can pivot and allow the pivoting of the rear active member 23 around the rear passive member 6. This pivoting lowers the tension of the elastic element 24, or makes this tension disappear.
  • the rear active member 23 or front 15 can then be released from the corresponding passive member 6, 5.
  • the interface 2 (remaining integral with the boot) is then released from the ski 3.
  • the elastic envelope which completely surrounds the interface, even at the level of the orifices receiving the front and rear passive members, facilitates or reinforces this effect of expulsion.
  • Figures 7 and 8 schematically show the mechanics of the bending bars 30 for a torsional movement and for a forward fall. It should be noted that the spacing of the support pins 34, 35 of each bending bar 30, is adjustable. The approximation of these support points increases the hardness of the bending bars and thus corresponds to a higher tripping torque. Conversely, their remoteness softens the movement and causes earlier triggering.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP88401299A 1988-07-07 1988-05-27 Schiausrüstung Withdrawn EP0343302A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/216,107 US4846492A (en) 1988-07-07 1988-07-07 Ski equipment

Publications (1)

Publication Number Publication Date
EP0343302A1 true EP0343302A1 (de) 1989-11-29

Family

ID=22805721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88401299A Withdrawn EP0343302A1 (de) 1988-07-07 1988-05-27 Schiausrüstung

Country Status (2)

Country Link
US (1) US4846492A (de)
EP (1) EP0343302A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0615774A2 (de) * 1993-02-17 1994-09-21 Günther Riepl Bindungssystem für Gleitbretter, insbesondere Snowbords sowie Stiefel zur Verwendung bei einem solchen Bindungssystem
EP0680775A2 (de) * 1994-05-06 1995-11-08 F2 International Gesellschaft m.b.H. Snowboardbindung
EP0934762A1 (de) 1993-02-17 1999-08-11 Günther Riepl Bindung für Gleitbrett, insbesondere Snowboard

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5505477A (en) 1993-07-19 1996-04-09 K-2 Corporation Snowboard binding
US5802741A (en) * 1993-07-19 1998-09-08 K-2 Corporation Snowboard boot
FR2749181B1 (fr) * 1996-06-04 1998-09-11 Salomon Sa Dispositif de retenue d'une chaussure sur une planche de glisse, le dispositif comprenant un element d'appui dorsal articule
FR2752528B1 (fr) * 1996-08-21 1998-11-27 Porte Pierre Alain Dispositif de fixation du pied sur un engin de sport, du type planche de surf des neiges, planche ou patin a roulettes, compose d'une botte et d'une embase fixee a l'engin de sport
US6648365B1 (en) 1997-01-08 2003-11-18 The Burton Corporation Snowboard binding
US6739615B1 (en) 1997-04-18 2004-05-25 The Burton Corporation Snowboard binding
WO1998047579A1 (en) 1997-04-18 1998-10-29 The Burton Corporation An interface for engaging a snowboard boot to a binding
US6145868A (en) * 1997-05-16 2000-11-14 The Burton Corporation Binding system for an article used to glide on snow
US6189913B1 (en) 1997-12-18 2001-02-20 K-2 Corporation Step-in snowboard binding and boot therefor
FR2784036B1 (fr) * 1998-10-06 2000-12-01 Rossignol Sa Interface de liaison entre une chaussure et une planche de glisse
FR2784594A1 (fr) * 1998-10-14 2000-04-21 Francois Daniel Pie Schneegans Dispositif de fixation a enclenchement automatique d'une chaussure sur un accessoire de sport, de type " step-in "
EP1314462B1 (de) * 2001-11-21 2005-03-16 The Burton Corporation Bindungsträgerplatte für ein Snowboard
US6722688B2 (en) 2001-11-21 2004-04-20 The Burton Corporation Snowboard binding system
US20090179403A1 (en) * 2006-04-28 2009-07-16 Lane Ekberg Pivoting footwear systems and configurable traction system
EP2243388B1 (de) * 2009-04-08 2011-10-05 Ski Trab S.r.l. Skistiefel mit Mitteln zur Betätigung von entsprechenden Halteelementen von Tourenskibindungen
GB201504669D0 (en) * 2015-03-19 2015-05-06 Shirion Rony Ski Boot Attachment
US11696615B2 (en) * 2019-02-25 2023-07-11 Stop River Development LLC Safety mechanism for use with snow sport boot and binding system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2228510A1 (de) * 1973-05-12 1974-12-06 Ver Baubeschlag Gretsch Co
EP0116900A1 (de) * 1983-02-21 1984-08-29 Antonio Faulin Sohle für Skischuh

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2295768A1 (fr) * 1974-12-23 1976-07-23 Mitchell Sa Ensemble pour la pratique du ski, compose d'une chaussure et d'une plaque sous-pied
CH614631A5 (de) * 1976-02-25 1979-12-14 Jean Roger Bataille
CH613867A5 (en) * 1977-05-10 1979-10-31 Hans Walder Ski binding and ski boot
IT1095529B (it) * 1978-05-24 1985-08-10 Faulin Antonio Struttura di attacco per sci

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2228510A1 (de) * 1973-05-12 1974-12-06 Ver Baubeschlag Gretsch Co
EP0116900A1 (de) * 1983-02-21 1984-08-29 Antonio Faulin Sohle für Skischuh

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0615774A2 (de) * 1993-02-17 1994-09-21 Günther Riepl Bindungssystem für Gleitbretter, insbesondere Snowbords sowie Stiefel zur Verwendung bei einem solchen Bindungssystem
EP0615774A3 (de) * 1993-02-17 1995-08-02 Guenther Riepl Bindungssystem für Gleitbretter, insbesondere Snowbords sowie Stiefel zur Verwendung bei einem solchen Bindungssystem.
EP0934762A1 (de) 1993-02-17 1999-08-11 Günther Riepl Bindung für Gleitbrett, insbesondere Snowboard
EP1097732A2 (de) 1993-02-17 2001-05-09 The Burton Corporation Bindung für Gleitbretter, insbesondere Snowbords
EP0680775A2 (de) * 1994-05-06 1995-11-08 F2 International Gesellschaft m.b.H. Snowboardbindung
EP0680775A3 (de) * 1994-05-06 1997-01-08 F2 Int Gmbh Snowboardbindung.
US5697631A (en) * 1994-05-06 1997-12-16 F2 International Ges.M.B.H. Snowboard binding

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