EP1440713B1 - Binding with an offset energy - Google Patents
Binding with an offset energy Download PDFInfo
- Publication number
- EP1440713B1 EP1440713B1 EP03028041A EP03028041A EP1440713B1 EP 1440713 B1 EP1440713 B1 EP 1440713B1 EP 03028041 A EP03028041 A EP 03028041A EP 03028041 A EP03028041 A EP 03028041A EP 1440713 B1 EP1440713 B1 EP 1440713B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- binding device
- footwear
- return
- elastic
- connecting 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
Links
- 230000027455 binding Effects 0.000 title claims description 37
- 238000009739 binding Methods 0.000 title claims description 37
- 230000000295 complement effect Effects 0.000 claims description 7
- 230000000284 resting effect Effects 0.000 claims 3
- 230000000694 effects Effects 0.000 description 8
- 238000005452 bending Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 210000000878 metatarsophalangeal joint Anatomy 0.000 description 2
- WCXDHFDTOYPNIE-UHFFFAOYSA-N acetamiprid Chemical compound N#CN=C(C)N(C)CC1=CC=C(Cl)N=C1 WCXDHFDTOYPNIE-UHFFFAOYSA-N 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
- A63C17/06—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type
- A63C17/065—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type with movements during use of the foot plate or shoe relative to the chassis, e.g. inline clap skate
-
- 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
- A43B5/0411—Ski or like boots for cross-country
- A43B5/0413—Adaptations for soles or accessories associated with soles for cross-country bindings
-
- 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
- A43B5/0496—Ski or like boots boots for touring or hiking skis
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C1/00—Skates
- A63C1/22—Skates with special foot-plates of the boot
- A63C1/28—Pivotally-mounted plates
-
- 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
- A63C9/20—Non-self-releasing bindings with special sole edge holders instead of toe-straps
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C2017/0053—Roller skates; Skate-boards with foot plate quick release or shoe binding
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C2201/00—Use of skates, skis, roller-skates, snowboards and courts
- A63C2201/06—Telemark
Definitions
- the invention relates to a device for attaching a shoe to a sports article.
- the invention can be applied in particular to devices for attaching a boot to a ski. It can be used in particular for the design of cross-country ski bindings, alpine ski mountaineering, Nordic ski touring or Telemark skiing.
- the invention may also be implemented in the context of a fixing device of the type described in the documents WO 96/37269 , EP-0914844 and WO / 01.93963 .
- the invention aims to provide an improvement to all these types of fasteners, which have in common to have a shoe retaining system independent of an elastic return system.
- the binding comprises an elastic return system which brings the shoe to its lower position corresponding to its position when it bears in front and to the back on the ski.
- This elastic return system must be powerful enough to quickly return the shoe to this low position.
- this reminder occurs when, at the end of the push, the skier wants to bring the ski forward by lifting it from the snow.
- the booster system must bring upward with respect to the position of the shoe of the user.
- the elastic return system must perfectly integrate into the rest of the fastening device.
- the fasteners to which the invention applies must be distinguished from the cable bindings of the type described for example in the documents US 3863942 , WO-99/02226 , FR-2363341 or US 3844575 .
- These cable bindings are generally intended for alpine skiing or Telemark. In all cases, they comprise a stop arranged at the front and a cable which is intended to wrap around the rear part of the boot and to be put in tension to push the boot forward in support against the stop.
- the cable may possibly cause an elastic return effect, this effect is not the main effect sought, and it usually occurs at the end of bending stroke of the shoe. Indeed, the cable is primarily a shoe retaining member within the retaining system consisting of the abutment and the cable.
- the return is generally arranged near the point of flexion of the shoe, which is about the center of rotation of the movement of the heel of the boot relative to the ski. It follows that, the return being arranged substantially at this center of rotation, the cable transmits little movement to the spring, and the variation of this displacement with respect to the angular position of the heel varies only slightly, and that moreover this variation is not really mastered. In this way, the variation of the return force can not be perfectly controlled. For certain positions of the shoe, the return force can even be almost zero or even negative. It has been found that it is not possible to have this control when the restraint system and the elastic return system are not independent, as in prior art cable bindings in which, without the cable, the shoe is no longer held on the ski.
- the first embodiment of a fixing device 10 illustrated in Figures 1 to 3 comprises a base 12 which is intended to be fixed on a sports article (not shown), but which could also be directly integrated in the latter.
- the fixing device 10 comprises a connecting member 14 on which a shoe is intended to be hooked (by means not shown).
- This attachment can be achieved by a detachable interface system not shown which will preferably be a "step-in" type interface system in which the attachment of the boot on the connecting member 14 is effected in a manner automatic, by simple contact between the two. The stall may possibly require a manual action of the user.
- the connecting member 14 is provided to be fixed under the front part of the shoe and to switch between a low position illustrated in Figure 2 (l liaison body, as well as the shoe attached to it, is then substantially horizontal) and a high position illustrated in Figure 1 when the heel of the user lifts with respect to the sporting article.
- the connecting member 14 is connected to the base by a rod 16 which is rotatably mounted about two transverse axes A1 and A2 on the one hand on a stud 13 of the base 12, and on the other hand on connecting member 14.
- the rod 16 is articulated by its rear end (relative to the direction of the sport article) on the base 12 and its front end on the front end of the connecting member 14 of so that in the low position, the rod and the connecting member are interlocked into one another.
- the connecting member 14 is actually made of two parallel elements offset transversely and joined by spacers, the link 16 being then received between the two parallel elements.
- the rod 16 may also be designed as two parallel elements braced.
- the rod is constituted by two parallel elements arranged on either side of the connecting member 14.
- the connecting member 14 When the connecting member 14 moves from its low position to its high position, the connecting member 14 is supported on the base by its front end which has, on at least one part , a curved profile 19.
- the shape and the evolution of the curved profile 19 condition, as a function of the angular orientation of the connecting member, the position in height of the axis A2 relative to the base 12.
- the relative movement of the connecting member 14 is conditioned relative to the base 12 during the phase heel lift.
- the angular movement of the rod 16 is small, for example of the order of 10 to 20 degrees when the connecting member 14 tilts at an angle of the order of sixty of degrees, and that, given the initial angle of the rod, it results in a slight but real forward displacement of the axis A2.
- the lifting movement of the heel is effected by a rolling movement with sliding of the curved profile 19 on the base 12.
- the elastic return system comprises at least one elastic member which is connected to the sports article, and a flexible link which connects the body elastic to the shoe and which cooperates with at least one return member.
- the flexible link is linked to the shoe indirectly, in that it is not hooked directly on the shoe but on the connecting member.
- the shoe and the connecting member being in permanent connection during the use of the system, it is functionally the same.
- the fixing device 10 comprises a guide edge 18 which is formed of a section of parallelepipedal section and which extends longitudinally towards the rear, behind the 14. In known manner, this guide edge 18 is provided to cooperate with a groove of complementary section arranged in the sole of the shoe to provide lateral guidance of the shoe / fastening assembly.
- the elastic member 20 is integrated inside a housing 22 formed inside this edge.
- the elastic member 20 is a compression spring which is disposed horizontally and longitudinally in the housing 22.
- the front end of the spring 20 bears against a front face 24 of the housing 22. This front end of the spring is therefore fixed.
- the rear end of the spring bears against a mobile carriage 26 which can slide longitudinally relative to the base 12 and to the edge 18. More specifically, the carriage 26 has a front end 27 which moves at the level of a front opening 29 of the housing 22, and a rear end 31 which moves in the housing 22 and on which the rear end of the spring 20 is supported.
- the device according to the invention comprises a flexible link 30 which connects the elastic member 20 to the connecting member 14.
- the link 30 is not hooked directly on the elastic member but on the front end 27 of the carriage 26. It passes on a return 34 which here consists of a pulley mounted on the pad 13, coaxially with the rod 16 about the axis A1.
- the return could also consist of a simple sliding surface, preferably a curved surface.
- the return 34 is fixed relative to the base 12 and with respect to the sports article.
- the other end of the link 30 is hooked on the connecting member 14 so that the portion of the flexible link 30 that extends between the return 34 and the connecting member 14 is substantially vertical, so that the restoring force exerted on the connecting member 14 is mainly directed downwards, including when the latter is high position as illustrated in Figure 1.
- the part of the link 30 which goes from the reference to the elastic member 20 extends in a substantially horizontal direction.
- the flexible link is substantially inextensible. It may for example be a wire rope or a fiber cable with very low extensibility, for example an aramid fiber cable. It can also be envisaged that this link is made in the form of a band. This traction band may for example be made in the form of a metal strip, or a bundle of parallel fibers embedded in a polymeric material.
- the link is sufficiently flexible and flexible not to provide a noticeable elastic effect, and especially to support an angle of about 90 degrees. It thus appears that the flexibility of the link 30 must be appreciated mainly as a flexural flexibility around the axis of the return. This flexibility of the link can not be local only, because the link moves with respect to the return.
- a flexible link is a band
- said band will not be flexible in bending around an axis perpendicular to the plane of the band, but this will not prevent this band from being considered flexible within the meaning of the invention if it does not offer significant resistance to bending around the return axis.
- the guiding mechanism is constituted for example by the rod 16 and the sliding surface 19.
- the guiding mechanism could be designed differently, for example in the form of a multi-mechanism. rods as described in the document WO 96/37269 .
- FIG. 3 illustrates a variant of the first embodiment of the invention in which the return system according to the invention comprises a mechanism for adjusting the stiffness of the elastic member 20, so as to leave the user the possibility of increasing or decreasing the intensity of the elastic return force to adapt to his style of practice.
- the front end of the spring bears on a stop 36 which is mounted in the housing on a threaded portion 38 of a rod 40.
- the rod 40 is mounted in the housing 22 so as to be movable in rotation about its longitudinal axis A3 but is immobilized longitudinally in translation.
- the rod 40 extends over the entire length of the housing 22 so that it also ensures the guidance of the spring 20 (whose helical turns surround around the rod) and the rear end of the carriage 26 on which the spring 20 is supported.
- the stop 36 is formed by a nut which is screwed onto the threaded portion 38 of the rod 40 and which can not pivot about its longitudinal axis A3.
- the forward end of the rod 40 protrudes outside the housing 22 and has the shape of a screw head 44 so as to allow the user to control the rotation of the rod 40 about its axis A3.
- the guide edge 18 comprises a window 42 which allows the user to view the position of the stop 36 and which allows him to evaluate the value of prestressing spring. At this window 42 may be associated with graphical references.
- This elastic return system is particularly interesting because it allows to accommodate the elastic member in an area of the device where it does not interfere with the kinematics and the roll of foot allowed by the fixation.
- the elastic member is arranged towards the rear of the fixing device, but it could also be expected that it is arranged at the front of the latter.
- the elastic member is therefore globally immobile with respect to the sports article and is linked to the connecting member only indirectly, by the flexible link.
- a better direction of the recall force direction which follows the direction of the portion of the flexible link that extends between the return and the shoe. This orientation is substantially parallel to that of the path that must follow the shoe to its lower position.
- the spring is a compression spring, which imposes the presence of the movable carriage.
- the invention could also be realized with other types of resilient members, for example with a tension spring, as will be described in connection with the second embodiment.
- the retaining system of the boot remains independent of the elastic return system, even if in this case the flexible link (belonging to the return system) is hooked on the connecting member.
- the restraint system which mainly belongs to the restraint system. This independence is confirmed by the fact that, even in the absence of the return system (for example in case of rupture of the flexible link or the elastic member), the restraint system continues to fully perform its primary function of restraint. of the shoe.
- Figures 4 to 7 show an assembly comprising a shoe 46 and a fastening device 10 according to a second embodiment of the invention.
- the boot has the classic appearance of a cross-country ski boot 46 with a flexible sole provided on the underside of its sole with a continuous longitudinal groove and designed to cooperate with a continuous guide edge 18 of the fastening device 10.
- this shoe 46 has, at its front end, a transverse latching bar before 48 disposed across the groove, and, recessed from the front bar 48, a second transverse bar 50 also disposed across the groove and located substantially at the level of the metatarsophalangeal joint area of the foot, and at most at the rear edge of the first third in length of the shoe which constitutes the extreme rear limit of the metatarsophalangeal joint area.
- the front bar 48 is preferably made in the form of a cylindrical rod of revolution intended to cooperate, in a manner known per se, with a retaining system comprising a mobile jaw 52, in the form of a hook and controlled by a lever 54, and an anterior edge 56 of the base constituting a fixed jaw, for the rotational locking of the boot on the sports article.
- a fixing system comprising a mobile jaw 52, in the form of a hook and controlled by a lever 54, and an anterior edge 56 of the base constituting a fixed jaw, for the rotational locking of the boot on the sports article.
- the principle of such a fixing device is described for example in the previous FR 2,634,132 in the name of the plaintiff, and can be either manual closure or automatic locking closure. It will not be described further.
- the rear bar 50 is intended to allow attachment directly on the sole of the boot of an elastic return system according to the invention.
- the elastic member 20 in this case a tension spring
- the front end of the elastic member is connected to a flexible link 30 which extends forward.
- the flexible link is provided at its front end with a hook 58, for example made of metal.
- the hook 58 is intended to hook onto the rear strip 50 of the boot, to ensure the connection of the elastic member 20 to the boot 46, and thus to allow the system to ensure its elastic return function.
- the hook 58 thus forms a connecting member between the flexible link and the shoe, but this connecting member is linked to the rest of the fastening device only by the flexible link 30.
- the flexible link 30 passes under a reference 34 (for example made in the form of a pulley or a curved surface) which is here arranged at the front opening 29 housing 22.
- a reference 34 for example made in the form of a pulley or a curved surface
- the hook 58 comprises a guide portion 60 which is intended to cooperate with complementary surfaces of the base 12 of the attachment so that, when the elastic member 20, by the intermediate of the flexible link 30, returns the hook 58 to a rest position, in the absence of the shoe, it is guided and maintained in this predetermined position through the cooperation of the guide portion and associated forms of the base.
- the fixing device also comprises a slide 62 which, controlled by the opening lever 54, also engages with the guide portion of the hook to bring the hook from its rest position to a position of waiting allowing the establishment of the shoe.
- the fixing device comprises a slide 62 which is mounted to slide longitudinally on the base 12 of the fastener and whose front portion 61 is connected to the movable jaw 52 to follow the longitudinal movements, which are controlled by the lever 54.
- the slide 62 advances longitudinally along with the movable jaw 52.
- the drawer 62 has a rear portion 64 which has a U-shaped cross-section and which, in the retracted position of the slide 62, extends inside the opening opening 29 of the housing 22.
- the U-shaped rear portion 64 thus delimits complementary shapes of the guide portion 60 of the hook 58, as illustrated schematically in FIGS. 8 to 10.
- the complementary shapes may comprise Engage ramps 66, 68, abutment surfaces 66, or, without limitation, guide side surfaces 70.
- the flexible link 30 is swallowed inside the housing 22, through the opening 29 and, in the absence of the shoe, it carries with it the guide portion 60 of the hook 58. This then comes to automatically lock against the complementary shapes of the base and the drawer, thus blocking the hook 58 in a predetermined position.
- the hook 58 can be moved longitudinally forwards by the rear portion 64 of the drawer 62 when the latter is driven forward when the user raises the lever.
- this waiting position illustrated in Figure 5, the hook 58 is more likely to cooperate with the rear bar 50 of the shoe, which can then be put in place (or otherwise removed). This is done by engaging the front bar 48 of the sole between the two jaws 52, 54 of the hinge, and then pivoting down the sole of the shoe 46 about the axis formed by the hinge.
- the rear bar 50 has reached a position in which it is likely to be hooked by the hook 58.
- the user can close the binding by lowering the lever 54, which has the effect of locking the jaws of the hinge around the front bar 48.
- the drawer 62 back and, under the effect of recall of the spring 20, the hook 48 back to hook on the rear bar 50 (which is not necessarily a cylinder of revolution) which is interposed on its path between its hold and return positions.
- the set is then in the situation illustrated in FIG.
- the heaving operation is carried out in the opposite direction of the installation.
- the user opens the binding by raising the lever 54 which causes on the one hand the opening of the jaws 52, 56, and on the other hand the advanced drawer 62.
- the latter by its rear portion 64 engages the guide portion 60 of the hook 58 and takes the hook 58 forward, which releases the rear bar 50 of the shoe.
- the two embodiments of the invention make it possible to have a return system whose return force is perfectly controlled, retaining and guiding the movement of the shoe being made by an independent system. It can thus be expected that the beginning of the uprising is done with a low initial return effort, then "program" the evolution curve of this effort depending on the lifting angle of the shoe.
- the elastic member may consist of several springs in series and / or in parallel, and / or it may also incorporate elastomeric elements having another type of stress / strain curve.
- the elastic return system may be supplemented by other elastic systems or stop systems.
- an end-of-travel stop 72 which intervenes only from a predetermined lifting angle of the boot.
- This stop 72 may be a rigid stop that limits the stroke of the shoe, or an elastic stop made in the form of an elastic buffer of the type described in the document FR-A-2650192 , which will then bring at the same time a soft abutment effect and an additional elastic return force.
- the abutment 72, rigid or elastic can cooperate directly with the shoe or with a portion of the retaining system such as the connecting member 14 of the retainer.
- the guide edge 18 is integrated into the base 12.
- the guide edge it is possible for the guide edge to be integrated directly into the sports article, for example to the ski.
- the housing 22, and the spring 20 (and, if appropriate, the carriage 26) will be directly integrated in the sports article.
- this elastic return system can have a width of the order of 15 to 20 mm and be completely integrated under the sole of the shoe, to accommodate for example in the size of the groove that is found under the cross-country ski soles.
- the return 34 is arranged at a small distance from the end of the flexible link which is linked to the shoe (possibly via the connecting member). , this being considered with the shoe in the down position.
- the horizontal projection of this distance is preferably less than 3 centimeters, and even more preferably less than 2 centimeters. This proximity ensures that the effective return direction (which is the direction of the portion of the link that extends between the shoe and the return) remains as close as possible to a parallel to the direction of relative movement of the shoe relative to to the article of sport (or, what is equivalent, close to the direction of a tangent to the trajectory of the shoe).
- both the end of the flexible link connected to the shoe that the return will preferably be arranged near the metatarsophalangeal articulation zone of the foot of the user when the shoe is in the lower position.
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
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Abstract
Description
L'invention se rapporte à un dispositif de fixation d'une chaussure à un article de sport.The invention relates to a device for attaching a shoe to a sports article.
L'invention pourra s'appliquer notamment à des dispositifs de fixation d'une chaussure sur un ski. Elle pourra notamment être mise en oeuvre pour la conception de fixations de ski de fond, de ski de randonnée alpine, de ski de randonnée nordique ou de ski Telemark.The invention can be applied in particular to devices for attaching a boot to a ski. It can be used in particular for the design of cross-country ski bindings, alpine ski mountaineering, Nordic ski touring or Telemark skiing.
Un premier exemple d'un tel type de fixation est celui des fixations de ski de fond du type charnière commercialisées par la demanderesse sous la marque commerciale «SNS PROFIL ». Un autre type de fixation concerné est celui décrit dans le document
L'invention pourra aussi être appliquée dans le cadre d'un dispositif tel que décrit dans le document
L'invention pourra aussi être mise en oeuvre dans le cadre d'un dispositif de fixation du type de ceux décrits dans les documents
L'invention vise à apporter un perfectionnement à tous ces types de fixations, qui ont en commun d'avoir un système de retenue de la chaussure indépendant d'un système de rappel élastique. En effet, notamment pour la pratique du ski de fond, il est nécessaire que la fixation comporte un système de rappel élastique qui ramène la chaussure vers sa position basse correspondant à sa position lorsqu'elle est en appui à l'avant et à l'arrière sur le ski. Ce système de rappel élastique doit être suffisamment puissant pour ramener rapidement la chaussure à cette position basse. Par exemple, lors de la pratique du pas du patineur en ski de fond, ce rappel intervient lorsque, en fin de poussée, le skieur veut ramener le ski vers l'avant en le soulevant de la neige. Dans ce cas, il apparaît que c'est l'avant du ski que le système de rappel doit ramener vers le haut par rapport à la position de la chaussure de l'utilisateur. Si le rappel n'est pas suffisamment puissant, la spatule avant du ski va tarder à remonter et risque d'accrocher la neige, perturbant gravement la progression du skieur. Toutefois, ce système de rappel élastique doit aussi présenter une bonne progressivité dans l'augmentation de l'effort en fonction de l'angle de soulèvement de l'organe de liaison, et son action ne doit pas non plus opposer une trop grande résistance au mouvement de déroulé de pied.The invention aims to provide an improvement to all these types of fasteners, which have in common to have a shoe retaining system independent of an elastic return system. Indeed, in particular for the practice of cross-country skiing, it is necessary that the binding comprises an elastic return system which brings the shoe to its lower position corresponding to its position when it bears in front and to the back on the ski. This elastic return system must be powerful enough to quickly return the shoe to this low position. For example, when practicing the skating step in cross-country skiing, this reminder occurs when, at the end of the push, the skier wants to bring the ski forward by lifting it from the snow. In this case, it appears that it is the front of the ski that the booster system must bring upward with respect to the position of the shoe of the user. If the booster is not powerful enough, the front spatula of the ski will be slow to rise and may catch the snow, seriously disturbing the progress of the skier. However, this system of elastic return must also have a good progressivity in the increase of the effort depending on the angle of uplift of the connecting member, and its action must also not oppose too much resistance to the movement of unfolded foot .
Une autre contrainte à laquelle doit répondre le système de rappel élastique est de ne pas présenter une trop grand encombrement, ni un poids trop élevé.Another constraint to which the elastic return system must respond is not to present too much space or too much weight.
Enfin, en termes de construction, le système de rappel élastique doit parfaitement s'intégrer dans le reste du dispositif de fixation.Finally, in terms of construction, the elastic return system must perfectly integrate into the rest of the fastening device.
Les fixations auxquelles s'appliquent l'invention doivent être distinguées des fixations à câble du type décrit par exemple dans les documents
Afin de répondre à ces différents problèmes, l'invention propose un dispositif de fixation d'une chaussure à un article de sport, du type comportant un système de retenue par lequel la chaussure est fixée au ski avec une possibilité de se déplacer par rapport à l'article de sport entre une position basse et une position haute, du type comportant un système de rappel élastique de la chaussure vers sa position basse, et du type dans lequel le système de retenue est indépendant du système de rappel élastique, caractérisé en ce que le système de rappel élastique comporte au moins :
- un organe élastique (20) qui est lié à l'article de sport, et
- un lien souple (30) qui relie l'organe élastique (20) directement ou indirectement à la chaussure et qui coopère avec au moins un organe de renvoi (34).
- an elastic member (20) which is connected to the sport article, and
- a flexible link (30) which connects the elastic member (20) directly or indirectly to the shoe and which cooperates with at least one return member (34).
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit ainsi qu'à la vue des dessins annexés dans lesquels :
- la figure 1 est une vue schématique latérale d'un premier mode de réalisation d'un dispositif de fixation conforme aux enseignements de l'invention, illustré en position haute ;
- la figure 2 est une vue schématique latérale du dispositif de la figure 1 illustré en position basse ;
- la figure 3 est une vue similaire à celle de la figure 1 illustrant une variante perfectionnée du premier mode de réalisation de l'invention ;
- la figure 4 est une vue schématique en perspective d'un second mode de réalisation de l'invention ;
- les figures 5, 6 et 7 sont des vues schématiques en coupe longitudinale partielle du second mode de réalisation de l'invention, illustré respectivement dans un état ouvert avant chaussage, et dans un état fermé avec la chaussure en position basse puis en position haute ;
- les figures 8 et 9 sont des vues très schématiques en vue de dessus et en vue de côté, destinées à illustrer comment, par coopération de formes complémentaires, le crochet du système de rappel élastique du second mode de réalisation est ramené systématiquement dans une position prédéterminée ;
- la figure 10 est une vue en coupe selon la ligne X-X de la figure 9 ;
- la figure 11 est une vue similaire à celle de la figure 7 illustrant une variante de réalisation de l'invention incorporant une butée élastique en fin de course de la chaussure.
- Figure 1 is a schematic side view of a first embodiment of a fastener according to the teachings of the invention, shown in the upper position;
- Figure 2 is a schematic side view of the device of Figure 1 shown in the lower position;
- Figure 3 is a view similar to that of Figure 1 illustrating an improved variant of the first embodiment of the invention;
- Figure 4 is a schematic perspective view of a second embodiment of the invention;
- Figures 5, 6 and 7 are schematic views in partial longitudinal section of the second embodiment of the invention, respectively shown in an open state before donning, and in a closed state with the shoe in the lower position and then in the high position;
- FIGS. 8 and 9 are very diagrammatic views in plan view and in side view, intended to illustrate how, by cooperation of complementary shapes, the hook of the elastic return system of the second embodiment is systematically brought into a predetermined position ;
- Figure 10 is a sectional view along line XX of Figure 9;
- Figure 11 is a view similar to that of Figure 7 illustrating an alternative embodiment of the invention incorporating an elastic stop end of the shoe stroke.
L'invention sera ici décrite dans le cas de modes de réalisation dans lesquels le dispositif de fixation est plus particulièrement destiné au ski de fond.The invention will here be described in the case of embodiments in which the fixing device is more particularly intended for cross-country skiing.
Le premier exemple de réalisation d'un dispositif de fixation 10 illustré sur les figures 1 à 3 comporte une embase 12 qui est destinée à être fixée sur un article de sport (non représenté), mais qui pourrait aussi être directement intégrée dans ce dernier. Dans ce premier exemple, le dispositif de fixation 10 comporte un organe de liaison 14 sur lequel une chaussure est destinée à être accrochée (par des moyens non représentés). Cet accrochage peut être réalisé par un système d'interface détachable non représenté qui sera de préférence un système d'interface de type "step-in" dans lequel l'accrochage de la chaussure sur l'organe de liaison 14 s'effectue de manière automatique, par simple contact entre les deux. Le décrochage pourra éventuellement nécessiter une action manuelle de l'utilisateur.The first embodiment of a
Comme décrit dans le document
L'organe de liaison 14 est lié à l'embase par une biellette 16 qui est montée à rotation autour de deux axes transversaux A1 et A2 d'une part sur un plot 13 de l'embase 12, et d'autre part sur l'organe de liaison 14.The connecting
Dans l'exemple illustré, la biellette 16 est articulée par son extrémité arrière (par rapport au sens de l'article de sport) sur l'embase 12 et par son extrémité avant sur l'extrémité avant de l'organe de liaison 14 de sorte que, en position basse, la biellette et l'organe de liaison sont imbriqués l'un dans l'autre.In the example shown, the
Pour cela, on peut par exemple prévoir que l'organe de liaison 14 soit constitué en fait de deux éléments parallèles décalés transversalement et réunis par des entretoises, la biellette 16 étant alors reçue entre les deux éléments parallèles. La biellette 16 peut elle aussi être conçue sous la forme de deux éléments parallèles entretoisés.For this, one can for example provide that the connecting
On peut encore prévoir que la biellette soit constituée de deux éléments parallèles disposés de part et d'autre de l'organe de liaison 14. Cependant, on peut aussi mettre en oeuvre l'invention en disposant la biellette en avant de l'organe de liaison, c'est à-dire en l'articulant par son extrémité avant sur l'embase et par son extrémité arrière sur l'extrémité avant de l'organe de liaison.It can also be provided that the rod is constituted by two parallel elements arranged on either side of the connecting
Lors du mouvement de soulèvement du talon, lorsque l'organe de liaison 14 passe de sa position basse à sa position haute, l'organe de liaison 14 est en appui sur l'embase par son extrémité avant qui présente, sur une partie au moins, un profil courbe 19. La forme et l'évolution du profil courbe 19 conditionnent, en fonction de l'orientation angulaire de l'organe de liaison, la position en hauteur de l'axe A2 par rapport à l'embase 12. Par un dessin optimal du profil courbe 19, et par un choix judicieux de la longueur et de l'angle initial de la biellette 16, on conditionne le mouvement relatif de l'organe de liaison 14 par rapport à l'embase 12 lors de la phase de soulèvement du talon. Dans l'exemple illustré, on voit que le mouvement angulaire de la biellette 16 est faible, par exemple de l'ordre de 10 à 20 degrés lorsque l'organe de liaison 14 bascule d'un angle de l'ordre d'une soixantaine de degrés, et que, compte tenu de l'angle initial de la biellette, il se traduit par un déplacement vers l'avant faible mais réel de l'axe A2. On notera que le mouvement de soulèvement du talon s'effectue grâce à un mouvement de roulement avec glissement du profil courbe 19 sur l'embase 12.During the lifting movement of the heel, when the connecting
L'organe de liaison 14, la biellette 16 et les moyens (non représentés) d'accrochage de la chaussure sur l'organe de liaison sont les principaux élément formant un système de retenue par lequel la chaussure est fixée sur l'article de sport et par lequel est déterminé le mouvement relatif de la chaussure par rapport à l'article de sport. Le dispositif de fixation 10 comporte aussi un système de rappel élastique de la chaussure vers sa position basse, le système de retenue étant indépendant du système de rappel élastique.The connecting
Conformément aux enseignements de l'invention, le système de rappel élastique comporte au moins un organe élastique qui est lié à l'article de sport, et un lien souple qui relie l'organe élastique à la chaussure et qui coopère avec au moins un organe de renvoi. Dans le premier exemple de réalisation illustré aux figures 1 à 3, le lien souple est lié à la chaussure de manière indirecte, en ce sens qu'il n'est pas accroché directement sur la chaussure mais sur l'organe de liaison. Cependant, la chaussure et l'organe de liaison étant en liaison permanente lors de l'utilisation du système, cela revient fonctionnellement au même.According to the teachings of the invention, the elastic return system comprises at least one elastic member which is connected to the sports article, and a flexible link which connects the body elastic to the shoe and which cooperates with at least one return member. In the first embodiment shown in Figures 1 to 3, the flexible link is linked to the shoe indirectly, in that it is not hooked directly on the shoe but on the connecting member. However, the shoe and the connecting member being in permanent connection during the use of the system, it is functionally the same.
Dans l'exemple illustré aux figures 1 à 3, le dispositif de fixation 10 comporte une arête de guidage 18 qui est formée d'un profilé de section parallélépipédique et qui s'étend longitudinalement vers l'arrière, en arrière de l'organe de liaison 14. De manière connue, cette arête de guidage 18 est prévue pour coopérer avec une rainure de section complémentaire aménagée dans la semelle de la chaussure pour assurer un guidage latéral de l'ensemble chaussure/fixation.In the example illustrated in FIGS. 1 to 3, the fixing
Avantageusement, l'organe élastique 20 est intégré à l'intérieur d'un logement 22 ménagé à l'intérieur de cette arête. Dans ce premier exemple, l'organe élastique 20 est un ressort de compression qui est disposé horizontalement et longitudinalement dans le logement 22. L'extrémité avant du ressort 20 est en appui contre une face avant 24 du logement 22. Cette extrémité avant du ressort est donc fixe. L'extrémité arrière du ressort est en appui contre un chariot mobile 26 qui peut coulisser longitudinalement par rapport à l'embase 12 et à l'arête 18. Plus précisément, le chariot 26 comporte une extrémité avant 27 qui se déplace au niveau d'une ouverture avant 29 du logement 22, et une extrémité arrière 31 qui se déplace dans le logement 22 et sur laquelle s'appuie l'extrémité arrière du ressort 20.Advantageously, the
Une telle disposition d'un organe élastique et d'un chariot mobile est analogue à celle que l'on trouve dans le dispositif décrit dans le document
Comme on peut le voir sur les figures, le lien 30 n'est pas accroché directement sur l'organe élastique mais sur l'extrémité avant 27 du chariot 26. Il passe sur un renvoi 34 qui est ici constitué d'une poulie montée sur le plot 13, coaxialement avec la biellette 16 autour de l'axe A1. Le renvoi pourrait aussi être constitué d'une simple surface de glissement, de préférence courbe. Dans cet exemple de réalisation, le renvoi 34 est fixe par rapport à l'embase 12 et par rapport à l'article de sport. L'autre extrémité du lien 30 est accrochée sur l'organe de liaison 14 de telle sorte que la partie du lien souple 30 qui s'étend entre le renvoi 34 et l'organe de liaison 14 soit sensiblement verticale, de manière que l'effort de rappel exercé sur l'organe de liaison 14 soit principalement dirigé vers le bas, y compris lorsque ce dernier est position haute tel qu'illustré à la figure 1. Au contraire, la partie du lien 30 qui va du renvoi à l'organe élastique 20 s'étend selon une direction sensiblement horizontale.As can be seen in the figures, the
Comme on peut le voir d'après les figures 1 et 2, lorsque l'organe de liaison passe de sa position basse à sa position haute, le lien souple 30 tire le chariot mobile vers l'avant et provoque la compression du ressort, lequel fournit donc un effort de rappel.As can be seen from FIGS. 1 and 2, when the connecting member moves from its low position to its high position, the
De préférence, le lien souple est sensiblement inextensible. Il peut par exemple s'agir d'un câble métallique ou un câble en fibres à très faible extensibilité, par exemple un câble en fibres d'aramides. On peut aussi envisager que ce lien soit réalisé sous la forme d'une bande. Cette bande de traction peut par exemple être réalisée sous la forme d'un feuillard métallique, ou encore d'un faisceau de fibres parallèles noyées dans un matériau polymère. De préférence, le lien est suffisamment souple et flexible pour ne pas fournir d'effet élastique notable, et surtout pour supporter un renvoi d'angle d'environ 90 degrés. Il ressort donc que la souplesse du lien 30 doit être appréciée principalement comme étant une souple en flexion autour de l'axe du renvoi. Cette souplesse du lien ne peut être uniquement locale, car le lien se déplace par rapport au renvoi. En revanche, notamment si lien souple est une bande, ladite bande ne sera pas souple en flexion autour d'un axe perpendiculaire au plan de la bande, mais cela n'empêchera pas de considérer cette bande comme souple au sens de l'invention si elle n'offre pas de résistance significative à la flexion autour de l'axe du renvoi.Preferably, the flexible link is substantially inextensible. It may for example be a wire rope or a fiber cable with very low extensibility, for example an aramid fiber cable. It can also be envisaged that this link is made in the form of a band. This traction band may for example be made in the form of a metal strip, or a bundle of parallel fibers embedded in a polymeric material. Preferably, the link is sufficiently flexible and flexible not to provide a noticeable elastic effect, and especially to support an angle of about 90 degrees. It thus appears that the flexibility of the
Bien entendu, cette souplesse impose que le guidage transversal de la chaussure soit assuré par un mécanisme distinct, en l'occurrence par le système de retenue. Dans l'exemple illustré, le mécanisme de guidage est par exemple constitué par la biellette 16 et par la surface de glissement 19. Cependant, le mécanisme de guidage pourrait être conçu de manière différente, par exemple sous la forme d'un mécanisme à plusieurs biellettes comme décrit dans le document
On a illustré sur la figure 3 une variante du premier mode de réalisation de l'invention dans laquelle le système de rappel selon l'invention comporte un mécanisme de réglage de la raideur de l'organe élastique 20, ceci afin de laisser à l'utilisateur la possibilité d'augmenter ou de diminuer l'intensité de l'effort de rappel élastique pour l'adapter à son style de pratique.FIG. 3 illustrates a variant of the first embodiment of the invention in which the return system according to the invention comprises a mechanism for adjusting the stiffness of the
Ainsi, on peut voir que l'extrémité avant du ressort est en appui sur une butée 36 qui est montée dans le logement sur une partie filetée 38 d'une tige 40. La tige 40 est montée dans le logement 22 de manière à être mobile en rotation autour de son axe longitudinal A3 mais elle est immobilisée longitudinalement en translation. On voit par ailleurs que la tige 40 s'étend sur toute la longueur du logement 22 de telle sorte qu'elle assure aussi le guidage du ressort 20 (dont les spires hélicoïdales s'entourent autour de la tige) et de l'extrémité arrière du chariot 26 sur laquelle le ressort 20 s'appuie. Contrairement au ressort 20 et au chariot 26 qui coulissent librement sur la tige 38, la butée 36 est formée par un écrou qui est vissé sur la partie filetée 38 de la tige 40 et qui ne peut pas pivoter autour de son axe longitudinal A3. L'extrémité avant de la tige 40 dépasse à l'extérieur du logement 22 et présente la forme d'une tête de vis 44 de manière à permettre à l'utilisateur de commander la rotation de la tige 40 autour de son axe A3. De la sorte, par ce système vis-écrou, l'utilisateur peut provoquer le déplacement longitudinal de la butée 36 dans le logement pour provoquer une précontrainte plus ou moins importante du ressort 20. Dans l'exemple illustré, l'arête de guidage 18 comporte une fenêtre 42 qui permet à l'utilisateur de visualiser la position de la butée 36 et qui lui permet donc d'évaluer la valeur de précontrainte du ressort. A cette fenêtre 42 pourront être associés de repères graphiques.Thus, it can be seen that the front end of the spring bears on a
Ce système de rappel élastique est particulièrement intéressant car il permet de loger l'organe élastique dans une zone du dispositif où il n'entrave pas la cinématique et le déroulé de pied permis par la fixation. En l'occurrence, l'organe élastique est agencé vers l'arrière du dispositif de fixation, mais on pourrait aussi prévoir qu'il soit agencé à l'avant de celui-ci.This elastic return system is particularly interesting because it allows to accommodate the elastic member in an area of the device where it does not interfere with the kinematics and the roll of foot allowed by the fixation. In this case, the elastic member is arranged towards the rear of the fixing device, but it could also be expected that it is arranged at the front of the latter.
L'organe élastique est donc globalement immobile par rapport à l'article de sport et il est lié à l'organe de liaison uniquement de manière indirecte, par le lien souple. De plus, comme ce dernier passe sur un renvoi on obtient de plus une meilleure orientation de la direction d'effort du rappel, laquelle suit la direction de la partie du lien souple qui s'étend entre le renvoi et la chaussure. Cette orientation est sensiblement parallèle à celle de la trajectoire que doit suivre la chaussure vers sa position basse.The elastic member is therefore globally immobile with respect to the sports article and is linked to the connecting member only indirectly, by the flexible link. In addition, as the latter passes on a referral is also obtained a better direction of the recall force direction, which follows the direction of the portion of the flexible link that extends between the return and the shoe. This orientation is substantially parallel to that of the path that must follow the shoe to its lower position.
Dans l'exemple illustré, le ressort est un ressort de compression, ce qui impose la présence du chariot mobile. On pourrait aussi réaliser l'invention avec d'autres types d'organes élastiques, par exemple avec un ressort de traction, tel que ce qui sera décrit en liaison avec le second mode de réalisation.In the illustrated example, the spring is a compression spring, which imposes the presence of the movable carriage. The invention could also be realized with other types of resilient members, for example with a tension spring, as will be described in connection with the second embodiment.
Dans ce premier mode de réalisation, on peut vérifier que le système de retenu de la chaussure reste indépendant du système de rappel élastique, même si en l'occurrence le lien souple (appartenant au système de rappel) est accroché sur l'organe de liaison, qui appartient principalement au système de retenue. Cette indépendance se vérifie par le fait que, même en l'absence du système de rappel (par exemple en cas de rupture du lien souple ou de l'organe élastique), le système de retenue continue d'assurer pleinement sa fonction première de retenue de la chaussure.In this first embodiment, it can be verified that the retaining system of the boot remains independent of the elastic return system, even if in this case the flexible link (belonging to the return system) is hooked on the connecting member. , which mainly belongs to the restraint system. This independence is confirmed by the fact that, even in the absence of the return system (for example in case of rupture of the flexible link or the elastic member), the restraint system continues to fully perform its primary function of restraint. of the shoe.
Les figures 4 à 7 montrent un ensemble comprenant une chaussure 46 et un dispositif de fixation 10 selon un second mode de réalisation de l'invention.Figures 4 to 7 show an assembly comprising a
En l'occurrence, la chaussure présente l'aspect classique d'une chaussure de ski de fond 46 à semelle flexible munie sur la face inférieure de sa semelle d'une rainure longitudinale continue et destinée à coopérer avec une arête de guidage continue 18 du dispositif de fixation 10.In this case, the boot has the classic appearance of a
Par ailleurs, cette chaussure 46 présente, à son extrémité antérieure, une barrette transversale d'accrochage avant 48 disposé en travers de la rainure, et, en retrait de la barrette avant 48, une deuxième barrette transversale 50 également disposée en travers de la rainure et située sensiblement au niveau de la zone de l'articulation métatarso-phalangienne du pied, et au plus à la limite arrière du premier tiers en longueur de la chaussure qui constitue la limite arrière extrême de la zone d'articulation métatarso-phalangienne.Furthermore, this
Bien évidemment, toute position de la barrette transversale arrière 50 entre la barrette avant 48 et la limite arrière ci-dessus définie est possible.Of course, any position of the rear
La barrette avant 48 est de préférence réalisée sous la forme d'une tige cylindrique de révolution destinée à coopérer, de façon connue en soi, avec un système de retenue comportant une mâchoire mobile 52, en forme de crochet et commandée par un levier 54, et un bord antérieur 56 de l'embase constituant une mâchoire fixe, pour le verrouillage rotatif de la chaussure sur l'article de sport. Le principe d'un tel dispositif de fixation est décrit par exemple dans le précédent
La barrette arrière 50 est destinée à permettre l'accrochage directement sur la semelle de la chaussure d'un système de rappel élastique selon l'invention.The
En effet, on retrouve dans ce second mode de réalisation un système de rappel dans lequel l'organe élastique 20, en l'occurrence un ressort de traction, est intégré dans un logement 22 agencé à l'intérieure d'une arête de guidage 18 du dispositif et est lié par une extrémité arrière à l'embase 12 du dispositif de fixation. Selon l'invention, l'extrémité avant de l'organe élastique est liée à un lien souple 30 qui s'étend vers l'avant. Le lien souple est muni, à son extrémité avant, d'un crochet 58, par exemple réalisé en métal. Comme on peut le voir sur les figures 6 et 7, le crochet 58 est destiné à venir s'accrocher sur la barrette arrière 50 de la chaussure, pour assurer la liaison de l'organe élastique 20 à la chaussure 46, et donc permettre au système d'assurer sa fonction de rappel élastique. Le crochet 58 forme donc un organe de liaison entre le lien souple et la chaussure, mais cet organe de liaison n'est lié au reste du dispositif de fixation que par le lien souple 30.Indeed, we find in this second embodiment a return system in which the
Bien entendu, comme dans le premier mode de réalisation, le lien souple 30 passe sous un renvoi 34 (par exemple réalisés sous la forme d'une poulie ou d'une surface courbe) qui est ici aménagée au niveau de l'ouverture avant 29 du logement 22.Of course, as in the first embodiment, the
Une des difficultés à résoudre pour la mise en oeuvre de ce principe réside dans le fait de permettre un accrochage et un décrochage facile et fiable du crochet 58 sur la barrette arrière 50 de la chaussure. En effet, contrairement à l'exemple de l'art antérieur du document
Aussi, selon un autre aspect de l'invention, le crochet 58 comporte une portion de guidage 60 qui est destinée à coopérer avec des surfaces complémentaires de l'embase 12 de la fixation pour que, lorsque l'organe élastique 20, par l'intermédiaire du lien souple 30, ramène le crochet 58 vers une position de repos, en l'absence de la chaussure, celui-ci se trouve guidé et maintenu dans cette position prédéterminée grâce à la coopération de la portion de guidage et des formes associées de l'embase. Par ailleurs, on verra que le dispositif de fixation comporte également un tiroir 62 qui, commandé par le levier d'ouverture 54, coopère lui aussi avec la portion de guidage du crochet pour amener le crochet de sa position de repos à une position d'attente permettant la mise en place de la chaussure.Also, according to another aspect of the invention, the
En effet, on peut voir sur les figures 5 à 7 que le dispositif de fixation comporte un tiroir 62 qui est monté à coulissement longitudinal sur l'embase 12 de la fixation et dont la partie avant 61 est liée à la mâchoire mobile 52 pour en suivre les mouvements longitudinaux, lesquels sont commandés par le levier 54. Ainsi, lorsque le levier 54 est soulevé pour amener la fixation dans un état ouvert, on voit que le tiroir 62 avance longitudinalement en même temps que la mâchoire mobile 52. Or, le tiroir 62 comporte une partie arrière 64 qui présente une forme de U en section transversale et qui, en position reculée du tiroir 62, s'étend à l'intérieur de l'ouverture débouchante 29 du logement 22. Avec les parois adjacentes 70 de cette ouverture 29, la partie arrière 64 en U délimite ainsi des formes complémentaires de la portion de guidage 60 du crochet 58, comme cela est illustré schématiquement sur les figures 8 à 10. Les formes complémentaires peuvent comporter des rampes d'engament 66, 68, des surfaces de butée 66, ou encore, de manière non restrictive, des surfaces latérales de guidage 70.Indeed, it can be seen in Figures 5-7 that the fixing device comprises a
Sous l'effet de l'organe élastique 20, le lien souple 30 est avalé à l'intérieur du logement 22, au travers de l'ouverture 29 et, en l'absence de la chaussure, il entraîne avec lui la portion de guidage 60 du crochet 58. Celle-ci vient alors se bloquer automatiquement contre les formes complémentaires de l'embase et du tiroir, bloquant ainsi le crochet 58 dans une position prédéterminée.Under the effect of the
Depuis cette position prédéterminée de repos, le crochet 58 peut être déplacé longitudinalement vers l'avant par la partie arrière 64 du tiroir 62 lorsque celui-ci est commandé vers l'avant lorsque l'utilisateur soulève le levier. Dans cette position d'attente, illustrée à la figure 5, le crochet 58 n'est plus susceptible de coopérer avec la barrette arrière 50 de la chaussure, laquelle peut alors être mise en place (ou au contraire retirée). Cette mise en place s'effectue en engageant la barrette avant 48 de la semelle entre les deux mâchoires 52, 54 de la charnière, puis en faisant pivoter vers le bas la semelle de la chaussure 46 autour de l'axe formé par la charnière. Lorsque la chaussure est en position basse, en appui à la fois à l'avant et à l'arrière, la barrette arrière 50 a atteint une position dans laquelle elle est susceptible d'être accrochée par le crochet 58. A ce moment-là, l'utilisateur peut refermer la fixation en rabaissant le levier 54, ce qui a pour effet de verrouiller les mâchoires de la charnière autour de la barrette avant 48. Dans le même temps, le tiroir 62 recule et, sous l'effet de rappel du ressort 20, le crochet 48 recule jusqu'à s'accrocher sur la barrette arrière 50 (laquelle n'est pas forcément un cylindre de révolution) qui est interposée sur sa trajectoire entre ses postions d'attente et de retour. L'ensemble est alors dans la situation illustrée à la figure 6.From this predetermined rest position, the
Si l'utilisateur soulève le talon de la chaussure, cette dernière effectue un mouvement de rotation autour de l'axe de la charnière matérialisé par la barrette avant 48. Dans le même temps, la barrette arrière 50 se soulève selon une trajectoire sensiblement en arc de cercle et, comme illustré à la figure 7 entraîne avec elle le crochet 58, ce qui provoque l'allongement du ressort 20, selon le même principe que ce qui a été décrit en rapport avec le premier mode de réalisation.If the user lifts the heel of the boot, the latter rotates about the axis of the hinge materialized by the
L'opération de déchaussage s'effectue en sens inverse de la mise en place. Lorsque la chaussure 46 est en position basse, l'utilisateur ouvre la fixation en soulevant le levier 54 ce qui provoque d'une part l'ouverture des mâchoires 52, 56, et d'autre part l'avancée du tiroir 62. Ce dernier, par sa partie arrière 64, agrippe la portion de guidage 60 du crochet 58 et emmène le crochet 58 vers l'avant, ce qui libère la barrette arrière 50 de la chaussure.The heaving operation is carried out in the opposite direction of the installation. When the
Les deux modes de réalisation de l'invention permettent d'avoir un système de rappel dont la force de rappel est parfaitement maîtrisée, la retenue et le guidage du mouvement de la chaussure étant réalisés par un système indépendant. On peut ainsi prévoir que le début du soulèvement se fasse avec un effort de rappel initial faible, puis « programmer » la courbe d'évolution de cet effort en fonction de l'angle de soulèvement de la chaussure. Pour ce faire, l'organe élastique pourra être constitué de plusieurs ressorts en série et/ou en parallèle, et/ou il pourra aussi incorporer des éléments en élastomères présentant un autre type de courbe effort/déformation.The two embodiments of the invention make it possible to have a return system whose return force is perfectly controlled, retaining and guiding the movement of the shoe being made by an independent system. It can thus be expected that the beginning of the uprising is done with a low initial return effort, then "program" the evolution curve of this effort depending on the lifting angle of the shoe. To do this, the elastic member may consist of several springs in series and / or in parallel, and / or it may also incorporate elastomeric elements having another type of stress / strain curve.
Par ailleurs, dans tous les cas, le système de rappel élastique pourra être complété par d'autres systèmes élastiques ou des systèmes de butée.Moreover, in all cases, the elastic return system may be supplemented by other elastic systems or stop systems.
On peut ainsi prévoir, comme illustré à la figure 11, une butée de fin de course 72 qui n'intervient qu'à partir d'un angle de soulèvement prédéterminé de la chaussure. Cette butée 72 pourra être une butée rigide qui limite la course de la chaussure, ou une butée élastique réalisée sous la forme d'un tampon élastique du type de celui décrit dans le document
Dans l'exemple de réalisation illustré sur les figures, l'arête de guidage 18 est intégrée à l'embase 12. Cependant, on peut prévoir que l'arête de guidage soit intégrée directement à l'article de sport, par exemple au ski. Dans ce cas, le logement 22, et le ressort 20 (et, le cas échant, le chariot 26) seront donc directement intégrés dans l'article de sport. Avantageusement, ce système de rappel élastique peut présenter une largeur de l'ordre de 15 à 20 mm et être complètement intégré sous la semelle de la chaussure, pour se loger par exemple dans l'encombrement de la rainure que l'on trouve sous les semelles de ski de fond.In the exemplary embodiment illustrated in the figures, the
Par ailleurs, on peut voir que, dans tous les modes de réalisation illustrés, le renvoi 34 est agencé à faible distance de l'extrémité du lien souple qui est liée à la chaussure (éventuellement par l'intermédiaire de l'organe de liaison), ceci étant considéré avec la chaussure en position basse. La projection horizontale de cette distance est de préférence inférieure à 3 centimètres, et encore plus préférentiellement inférieure à 2 centimètres. Cette proximité assure que la direction effective de rappel (qui est la direction de la partie du lien qui s'étend entre la chaussure et le renvoi) reste le plus possible proche d'une parallèle à la direction du mouvement relatif de la chaussure par rapport à l'article de sport (ou, ce qui est équivalent, proche de la direction d'une tangente à la trajectoire de la chaussure). Par ailleurs, tant l'extrémité du lien souple liée à la chaussure que le renvoi seront de préférence agencés à proximité de la zone d'articulation métatarso-phalangienne du pied de l'utilisateur lorsque la chaussure est en position basse.Moreover, it can be seen that, in all the illustrated embodiments, the
De plus, notamment dans les cas où le système de retenue et de guidage de la chaussure détermine un mouvement de relatif de la chaussure par rapport à l'article de sport qui est un mouvement de rotation ou un mouvement proche (comme le second mode de réalisation ici représenté), il faudra prévoir que le renvoi soit agencé à une certaine distance du centre de ce mouvement de rotation, sans quoi le mouvement de la chaussure ne provoquera que peu ou pas de déplacement de l'extrémité du lien qui est liée à l'organe élastique, rendant le système de rappel inefficace.In addition, especially in cases where the restraint system and guidance of the shoe determines a relative movement of the shoe relative to the sport article which is a rotational movement or a close movement (as the second mode of embodiment shown here), it will be necessary to provide that the return is arranged at a certain distance from the center of this rotational movement, otherwise the movement of the shoe will cause little or no movement of the end of the link which is linked to the elastic member, making the recall system ineffective.
Claims (22)
- Device for binding a footwear to a sports article, of the type comprising a retaining system whereby the footwear is fixed to the ski with a possibility of being displaced in relation to the sports article, between a low position and a high position; of the type comprising a system for the elastic return of the footwear to its low position; and of the type in which the retaining system is independent of the elastic return system, characterized in that the elastic return system comprises at least:one elastic member (20) that is connected to the sports article, andone flexible linkage (30) that connects the elastic member (20) directly or indirectly to the footwear, and which cooperates with at least one return member (34).
- Binding device according to claim 1, characterized in that the flexible linkage (30) has, on both sides of the return (34), a portion that is connected to the elastic member (20) and extends along a substantially horizontal direction, and a portion that is connected to the footwear and extends along a direction substantially parallel to the direction of the relative movement of the footwear in relation to the binding device.
- Binding device according to one of claims 1 or 2, characterized in that the return member (34) comprises a pulley.
- Binding device according to one of claims 1 or 2, characterized in that the return member comprises a curved sliding surface on which the flexible linkage takes support and slides.
- Binding device according to any of the preceding claims, characterized in that the flexible linkage (20) comprises a cable.
- Binding device according to one of claims 1 to 4, characterized in that the flexible linkage comprises a traction strip.
- Binding device according to any of the preceding claims, characterized in that it comprises a member (14, 58) for connecting to the footwear which is adapted to be hooked to the footwear, and in that the flexible linkage (30) is connected to the connecting member (14, 58).
- Binding device according to claim 7, characterized in that the connecting member comprises a hook (58) connected to the binding device (10) only by the flexible linkage (30), and which is adapted to get hooked on a hooking bar (50) of the footwear (46).
- Binding device according to claim 8, characterized in that, in the absence of the footwear, the hook (58) is automatically returned by the elastic return system (20, 30) to a resting position that is predetermined by the cooperation of the hook (58) with complementary forms (29, 64, 68, 70) of the device (10).
- Binding device according to claim 9, characterized in that it comprises an opening mechanism (54, 62) that drives the hook (58) from its resting position to a cleared waiting position allowing the positioning of a footwear, and in that, when the hook (58) returns to its resting position, the hooking bar (50) of the footwear is arranged on the trajectory of the hook (58) to ensure its hooking on the bar (50).
- Binding device according to any of the preceding claims, characterized in that the retaining system is constituted of a jaw adapted to receive a rod for articulating the footwear in the manner of a hinge.
- Binding device according to claim 7, characterized in that the connecting member (14) is part of the retaining system and is capable of moving in relation to the sports article between a low position and a high position, in that the footwear is adapted to be hooked on the connecting member, and in that the flexible linkage (30) of the elastic return system connects the elastic member (20) to the connecting member (14) in order to return the connecting member and the footwear to their low position.
- Binding device according to claim 12, characterized in that the connecting member (14) is connected to the sports article by a guiding mechanism (16).
- Binding device according to claim 13, characterized in that the guiding mechanism comprises at least one rocker bar (16) articulated with respect to the sports article.
- Binding device according to combined claims 3 and 14, characterized in that the pulley is coaxial with the axle (A1) for articulating the rocker bar (16) in relation to the sports article.
- Binding device according to any of the preceding claims, characterized in that it comprises a base (12) that is affixed to the sports article, and in that the elastic member (20) is connected to the sports article by means of the base (12).
- Binding device according to any of the preceding claims, characterized in that the connecting member (14) comprises a convex surface (19) that takes support on the sports article.
- Binding device according to any of the preceding claims, characterized in that it comprises, in addition to the elastic return system, a rigid or elastic abutment (72) acting at the end of the footwear travel.
- Binding device according to any of the preceding claims, characterized in that it comprises a mechanism for adjusting the stiffness of the elastic member (20).
- Binding device according to claim 19, characterized in that the mechanism for adjusting the stiffness allows adjusting a more or less substantial pre-stress of the elastic member (20).
- Binding device according to any of the preceding claims, characterized in that the return (34) and the end of the flexible linkage that is connected to the footwear are arranged at a short distance from one another.
- Binding device according to any of the preceding claims, characterized in that the end of the flexible linkage (30) connected to the footwear and the return (34) are arranged in the vicinity of the metatarsophalangeal articulation zone of the user's foot when the footwear is in the low position.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0300811A FR2850031B1 (en) | 2003-01-21 | 2003-01-21 | ENERGY FIXING DEPORTEE |
FR0300811 | 2003-01-21 |
Publications (2)
Publication Number | Publication Date |
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EP1440713A1 EP1440713A1 (en) | 2004-07-28 |
EP1440713B1 true EP1440713B1 (en) | 2008-01-23 |
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EP03028041A Expired - Lifetime EP1440713B1 (en) | 2003-01-21 | 2003-12-08 | Binding with an offset energy |
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EP (1) | EP1440713B1 (en) |
AT (1) | ATE384561T1 (en) |
DE (1) | DE60318809T2 (en) |
FR (1) | FR2850031B1 (en) |
NO (1) | NO327546B1 (en) |
RU (1) | RU2288017C2 (en) |
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DE50111170D1 (en) * | 2000-06-08 | 2006-11-16 | Rottefella As | ARRANGEMENT OF A SKI AND A SKI BOOT |
US20040056449A1 (en) * | 2001-02-02 | 2004-03-25 | Salomon S.A. | Binding device with front unfastening |
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FR2850031B1 (en) * | 2003-01-21 | 2006-08-11 | Salomon Sa | ENERGY FIXING DEPORTEE |
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FR2865660B1 (en) * | 2004-01-30 | 2006-04-07 | Salomon Sa | INTEGRATED UNLOCKING FIXING DEVICE |
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FR2873044B1 (en) * | 2004-07-13 | 2006-09-29 | Salomon Sa | APPARATUS FOR FIXING A SHOE TO A SPORTS ARTICLE WITH A SEPARATE ELASTIC RECALL SYSTEM |
ATE426439T1 (en) * | 2005-01-10 | 2009-04-15 | Rottefella As | SKI OR SIMILAR SNOW GLIDER WITH BINDING MOUNTING AID |
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FR2885532B1 (en) * | 2005-05-12 | 2007-08-03 | Salomon Sa | ADJUSTABLE RECOVERY ENERGY FIXING DEVICE |
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DE102012207959B4 (en) * | 2012-05-11 | 2020-11-12 | Fritz Barthel | Front unit of a gliding board binding and gliding board binding |
US9266010B2 (en) | 2012-06-12 | 2016-02-23 | Tyler G. Kloster | Splitboard binding with adjustable leverage devices |
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USD820932S1 (en) | 2016-05-04 | 2018-06-19 | Salomon S.A.S. | Ski binding |
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US11117042B2 (en) | 2019-05-03 | 2021-09-14 | Bryce M. Kloster | Splitboard binding |
US11110338B1 (en) * | 2020-07-14 | 2021-09-07 | Thomas Alan Miller | Ski binding with heelless telemark coupling |
US11938394B2 (en) | 2021-02-22 | 2024-03-26 | Bryce M. Kloster | Splitboard joining device |
US11865433B2 (en) * | 2021-10-28 | 2024-01-09 | Fritschiag—Swiss Bindings | Skibinding, in particular touring skibinding |
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FR2850031B1 (en) * | 2003-01-21 | 2006-08-11 | Salomon Sa | ENERGY FIXING DEPORTEE |
-
2003
- 2003-01-21 FR FR0300811A patent/FR2850031B1/en not_active Expired - Fee Related
- 2003-12-08 DE DE60318809T patent/DE60318809T2/en not_active Expired - Lifetime
- 2003-12-08 AT AT03028041T patent/ATE384561T1/en not_active IP Right Cessation
- 2003-12-08 EP EP03028041A patent/EP1440713B1/en not_active Expired - Lifetime
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2004
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- 2004-01-20 RU RU2004101728/12A patent/RU2288017C2/en not_active IP Right Cessation
- 2004-01-20 US US10/759,211 patent/US6964428B2/en not_active Expired - Fee Related
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2005
- 2005-09-20 US US11/229,719 patent/US7320474B2/en not_active Expired - Fee Related
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FR2850031A1 (en) | 2004-07-23 |
US7320474B2 (en) | 2008-01-22 |
US20040164519A1 (en) | 2004-08-26 |
US6964428B2 (en) | 2005-11-15 |
DE60318809D1 (en) | 2008-03-13 |
DE60318809T2 (en) | 2009-01-22 |
NO20040244L (en) | 2004-07-22 |
ATE384561T1 (en) | 2008-02-15 |
EP1440713A1 (en) | 2004-07-28 |
FR2850031B1 (en) | 2006-08-11 |
RU2004101728A (en) | 2005-06-27 |
RU2288017C2 (en) | 2006-11-27 |
NO327546B1 (en) | 2009-08-10 |
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