EP3854465A1 - Front binding for a gliding device and gliding device provided with such a front binding - Google Patents
Front binding for a gliding device and gliding device provided with such a front binding Download PDFInfo
- Publication number
- EP3854465A1 EP3854465A1 EP21152435.0A EP21152435A EP3854465A1 EP 3854465 A1 EP3854465 A1 EP 3854465A1 EP 21152435 A EP21152435 A EP 21152435A EP 3854465 A1 EP3854465 A1 EP 3854465A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- articulation
- control lever
- clamping
- lever
- sphere
- 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.)
- Granted
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- 238000009739 binding Methods 0.000 title description 7
- 230000000295 complement effect Effects 0.000 claims abstract description 12
- 210000000056 organ Anatomy 0.000 description 11
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000309551 Arthraxon hispidus Species 0.000 description 1
- 208000031968 Cadaver Diseases 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000000126 substance Substances 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
- A63C9/00—Ski bindings
- A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
- A63C9/0807—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings for both towing and downhill skiing
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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
- 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
- A63C9/08507—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
- A63C9/08528—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 pivoting about a longitudinal axis
-
- 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
- A63C9/08571—Details of the release mechanism using axis and lever
-
- 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
-
- 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
- A63C9/08585—Details of the release mechanism using transverse biasing element
-
- 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
Definitions
- the present invention relates to the technical field of bindings for sliding devices.
- the gliding devices targeted by the invention are intended in particular for the practice of ski or snowboard touring, telemark as well as Nordic skiing and cross-country skiing.
- the invention relates more particularly to a front stop belonging to the binding of a sliding device, as well as a sliding device equipped with such a front stop.
- the front stop fitted to the sliding devices covered by the invention provides a connection between the front end of the user's boot and the ski.
- This stop in a so-called hiking mode, allows the user's shoe to pivot about a transverse axis, located at the front of the foot. This rotation allows the heel to detach from the machine, in particular the ski board. This consequently allows the user to exert an optimum pushing force, in particular during a climb phase.
- the European patent application EP 0 199 098 has proposed a binding for ski touring, including a front stop comprising two clamping jaws. Each of the latter, which generally have an L-shape, is articulated around a longitudinal axis of the ski. At their upper end, these jaws are equipped with clamping lugs, which penetrate into orifices made in the ski boot.
- the aforementioned stop is movable between two positions, namely first of all an active position in which it comes into contact with the shoe, so as to position the lugs facing the housings of the shoe. Furthermore, this stopper is capable of occupying a retracted position, in which it does not disturb the normal pivoting of the boot. This stop is also directly linked to the clamping jaws, so that a relative movement between the latter causes the movable stop to tilt between its active position and its retracted position.
- front stops are relatively fragile, in particular in that they are subject to premature breakage. Furthermore, it is difficult for the manufacturer to identify precisely the origin of these breakages. In addition, these front stops prove to be difficult to size, if it is desired to adapt them to different morphologies of users.
- the present invention aims to remedy at least certain drawbacks of the prior art mentioned above.
- the subject of the invention is also a gliding device comprising a front stop according to that described above.
- the invention makes it possible to produce an optimal isostatic connection system between the control lever and the articulation members.
- This provides for a substantially slack free connection in the system.
- the support of the control lever on the spherical surfaces, belonging to the articulation members make it possible to guarantee a perfect positioning of the parts, with a displacement close to the theoretical kinematics.
- connection system according to the invention eliminates any hyper droop, which constitutes, as we have seen, a major drawback of the prior art.
- the spherical shapes of the articulation members guarantee that substantially no torque will be transmitted to the guide rods. Furthermore, no significant parasitic force will stress this guide rod.
- articulation members equipped with portions of a sphere, come into contact with cavities of the control lever. Given that these cavities are identical and oblong in shape, typically along a rolling track, perfectly symmetrical behavior of the system is guaranteed.
- the expressions “front”, “rear”, “front”, “behind”, “advance” and “retreat” refer to the direction of the ski in a normal situation of use.
- the front stop I according to a first embodiment of the invention essentially comprises a base plate 10 , clamping pieces 2 and 3 , a control lever 4 , as well as articulation members 6 and 7 .
- the base plate 10 is intended to be fixed on a sliding device, in particular a ski board.
- this binding is of the removable type.
- various orifices 12 are hollowed out in the plate, so as to allow the passage of removable fixing means, for example screws.
- this plate 10 supports several yokes, namely yokes 14 and 15 intended for mounting the clamping parts 2 and 3 , as well as a yoke 16 intended for mounting the lever 4 .
- the clamping pieces 2 and 3 which are mutually symmetrical, have substantially an L-shape.
- Each piece thus comprises an inner flange 20,30 , as well as an outer flange 21,31 .
- each inner wing is hollowed out with an orifice 22,32 intended for the passage of a physical axis 23,33 .
- each axis 23,33 is mounted on a respective yoke 14,15, each clamping piece is free to pivot relative to the base plate about a geometric axis denoted A2, A3 .
- These axes are called longitudinal, ie they extend in the main direction of the gliding device, once the front stop according to the invention is installed on the latter.
- each outer wing 21,31 is equipped with a respective lug 24,34 .
- each lug is intended to cooperate, in a manner known per se, with the shoe of a user.
- each inner wing defines a sheath 25,35 , in which is mounted a respective rod 26,36 .
- the mutual fixing between each sleeve and each rod which is advantageously of the permanent type, is for example carried out by tight assembly with the press or else crimped.
- compression springs 27,37 are arranged around a respective rod 26 and 36. The first end 28,38 of each of these springs bears, in service, against the walls of the sleeve 25,35 .
- the lever 4 which has an elongated shape, has a longitudinal axis denoted X4 , which is parallel to the longitudinal axis of the ski once the front stop is mounted on the latter. In its middle part, this lever 4 is hollowed out with a transverse orifice 40 , allowing the reception of a physical axis 41 capable of cooperating with the yoke 16 . Once the lever is mounted on this yoke, it is free to pivot relative to the base plate around a transverse geometric axis, denoted A4 .
- Cavities 50 and 55 are formed on the opposite side flanks 48 and 49 , belonging to the lever 4 . These cavities, which form an essential element of the invention, will be described in more detail in what follows. Furthermore, the front end 42 of the lever is hollowed out with a transverse orifice 44 , allowing the passage of a physical axis 45 . The latter ensures the articulation of a locking tab 46 , relative to the lever 4 , about a transverse axis A46 .
- This shank is extended by a peripheral flange 62,72, allowing the support of the second end 29,39 of each compression spring 27,37.
- Each articulation member further comprises an articulation head 64, 74, extending the collar away from the barrel.
- Each head is formed by a portion of a sphere, as shown in particular by the figure 10 .
- C64 the center of this sphere, as well as D64 its diameter. Typically, this diameter is between 2mm and 15mm.
- a64 the angle along which this portion of the sphere extends. In the example illustrated, this angle is greater than 180 °, typically close to 270 °. It can nevertheless be expected that this angle is much less than this value. In any event, in order to ensure correct operation of the system, this angle is advantageously greater than 10 °, in particular greater than 20 °.
- 64 ' and 74' denote the so-called articulation surfaces, belonging to the respective heads 64 and 74.
- the cavities 50 and 55 which are symmetrical with respect to a longitudinal plane, are oblong in shape.
- the cavity 50 which is illustrated in particular on the figures 9 and 10 , firstly comprises a central portion 51, forming a rolling track for the head 64.
- this track 51 has a cylindrical profile whose diameter D51 is close to that D64 of the head 64.
- the angle a51 along which this cylindrical track 51 extends is slightly less than 180 ° so as to allow a convenient cooperation with the head 64.
- This track 51 is terminated by end portions 52 and 53, which are in particular visible on the figure 11 .
- these end portions are substantially in the shape of a hemisphere with a diameter close to that D64 above.
- the longitudinal dimension X51 of the track 51 is greater than the diameter of the head 64, which gives the possibility of sliding this head along this track, in the main direction X4 of the lever.
- the front stop I The implementation of the front stop I, described above, will now be explained in what follows. It is assumed that the base plate 10, belonging to this stop, is fixed to the board 80 of a ski 8. Furthermore, the figures 2 and 3 show a boot 9, capable of being adapted to this ski. For this purpose, in a manner known per se, the front end 90 of this shoe is provided with lateral housings 91 , 92 which, as will be seen in what follows, can cooperate with the clamping lugs 24 and 34.
- This stop first has an open configuration, illustrated on the figures 2 and 3 .
- the rear end 43 of the lever 4 is in a raised position, while its front end 42 is in a lowered position in the vicinity of the plate 10.
- the clamping pieces 2 and 3 are mutually discarded. Under these conditions, the clamping lugs 24 and 34 are remote from one another, at a spacing which does not allow them to cooperate with the aforementioned housings 91,92.
- the front stop is then in its closed configuration, shown on the figures 4 to 8 .
- the boot is integral in translation with the front stop, while being free to pivot with respect to this stop around the geometric axis A9. It will be noted that, in the absence of locking of the tab 46, the boot can become detached from the front stop, in particular in the event of a significant force. This possibility is particularly suited to the use of the ski, in downhill mode.
- this front stop can be locked in this open configuration.
- the user swings the locking tab 46 upwards, according to the arrow F46 shown on the figure 5 .
- the boot cannot become detached from the front stopper, even in the event of significant force. This possibility is particularly suited to the use of skiing, in hiking mode.
- the figures 12 to 14 illustrate the relative position of the articulation head 64 and of the oblong cavity 50, during the angular travel of the lever 4. In essence, as the rear end 43 of the lever 4 pivots downwards, the head 64 slides along the cavity 50. Those skilled in the art will determine the length X51 so that the head 64 is not blocked at the level of the ends 52,53, during the mutual displacement of the lever 4 and of the articulation members 6 and 7.
- the front stop of figures 15 and 16 which conforms to a first variant embodiment of the invention, comprises an insert 105 in which opposing cavities 150 and 155 are formed. These cavities have the same profile as that of the cavities 50 and 55, namely that they have an oblong shape.
- This insert 105 is fixed in an opening 159, which opens onto the opposite side faces of the control lever 104.
- the attachment of this insert to the walls of the opening 159 is carried out by any appropriate means.
- This embodiment has specific advantages. Indeed it guarantees a great ease of manufacture of the control lever. Furthermore, the latter has a high mechanical stiffness, given that it has a closed shape at its rear end.
- auxiliary member 205 in the form of a diabolo.
- This auxiliary member comprises two cups, defining a central groove 258.
- These cups form cavities 250 and 255 which, unlike the above embodiments, are not oblong.
- these cavities have a spherical shape, with a diameter close to that of the head 264, 274 of a respective articulation member 206, 207. Consequently, each articulation member has a connection of ball joint type with respect to the cavities, namely that it has three degrees of freedom in rotation with respect to these cavities, while being linked in translation with respect to the latter.
- the auxiliary member 205 When the control lever is pivoted, the auxiliary member 205 is free to slide along the main axis of the control lever 204, according to the arrow F205. To this end, the rear end 243 of the lever 204 is open, having the shape of C. Furthermore, the walls of this open end are provided with a median groove 249, along which the groove 258 can move. of the auxiliary member 205.
- This embodiment has specific advantages. Indeed, it guarantees very low friction, on high force transmissions.
- the front stop of figures 19 and 20 which is in accordance with a third variant embodiment of the invention, differs from the variant of figures 17 and 18 in that the articulation heads 364, 374 come into direct contact with planar surfaces of the control lever. More precisely, the rear end 343 of this lever 304 delimits a chamber 344, which is bordered by said flat surfaces 345 and 346, forming respectively upper and lower surfaces of this chamber. In the example illustrated, this chamber 344 is open towards the rear, it being understood that it can be closed by a wall, not shown. It will also be noted that, from the perspective of figure 19 , part of the upper wall of the chamber has been torn off, for better visibility.
- the heads 364,374 of the articulation members are capable of sliding along the plane surfaces 345,346, mentioned above, along the main axis of the lever 304.
- these heads 364,374 in the form of a portion of a sphere cooperate with cavities 250,255 formed in the auxiliary member 305.
- this auxiliary member 305 is not guided by the walls of the lever.
- the vertical forces are transmitted directly from the articulation members to the control lever, while the horizontal forces are transmitted from one spherical head to the other, via the auxiliary member.
- This embodiment of these figures 19 and 20 has specific advantages. In particular, it uses mechanical parts, the structure of which is simple.
- FIG. 21 to 24 which is in accordance with a fourth variant embodiment of the invention, is close to the variant of figures 19 and 20 . It differs however of this third variant, in particular in that it is devoid of an auxiliary member, such as that 305.
- each head 464,474 in the form of a portion of a sphere is equipped with a projection 465,475, which cooperates with a recess 466,476 spared in the head opposite.
- the cooperation of these projections and these recesses ensures a possibility of pivoting between these heads, about an axis denoted A 406. This pivot axis is distant from the respective centers C464 and C474 of the heads 464,474.
- the spherical heads indirectly bear against the flat surfaces of the chamber 444, with the possibility of sliding along the main axis of the lever.
- This embodiment has specific advantages. In fact, it allows a reduction in the number of mechanical elements, while allowing direct transmission of forces from the spherical articulation heads to the control lever.
- each head 564.574 has substantially the shape of a hemisphere.
- these two hemispheres are mutually connected by a physical axis 565, which guarantees a possibility of mutual rotation between these two hemispheres, around an axis denoted A506.
- this axis of rotation passes through the respective centers C564 and C574 of the two hemispheres 564 and 574, which are the same.
- This embodiment has specific advantages, which are linked in particular to its structural simplicity.
- FIG. 27 and 28 which conforms to a sixth variant embodiment of the invention, differs from the previous variants in particular as regards the structure of the lever 604.
- the levers 4 to 504 are mounted on their yoke thanks to the circular holes.
- the mounting of the lever 604 is ensured by means of an oblong orifice 649.
- the possibility of sliding between the control lever and the articulation members, materialized by the arrow f604, is ensured at the level of the oblong orifice in this sixth embodiment, and not at the level of the cavities. oblong as in the first embodiment.
- the front stopper shown on these figures 27 and 28 has specific advantages, linked in particular to the simplification of the connection between the articulation members and the control lever. This guarantees a very satisfactory control of the whole system.
- the front stop of figures 29 and 30 which is in accordance with a seventh variant embodiment of the invention, differs from the first embodiment as regards the structure of the articulation member.
- the articulation surface of each articulation member 706 and 707 is formed, not by a projecting head, but by a cavity 764 and 774.
- the control lever 704 is equipped with a rod 749 on which slides a complementary articulation member 741.
- the latter has a spherical head 747, capable of cooperating with each of the above cavities 764 and 774.
- This embodiment of the figures 29 and 30 therefore constitute a mirror-type solution, with respect to the embodiment of the figures 1 to 13 . It has specific advantages, in particular in that it confers great manufacturing simplicity on the different parts.
- each articulation member cooperates with a single spring and a single rod.
- the use of a single spring and a single rod constitutes a preferred embodiment. Indeed, such a use is more particularly advantageous to avoid any untimely hyper droop.
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Cette butée avant (I) comprend une plaque de base (10) fixée sur l'engin de glisse, deux pièces de serrage (2,3) comportant une extrémité supérieure pourvue d'un ergot de serrage, et une extrémité inférieure pourvue d'une tige de support, deux organes de liaison (6,7) aptes à coopérer avec un levier de commande (4), ainsi que deux moyens élastiques (27, 37), aptes à repousser un organe de liaison respectif contre le levier de commande, les pièces de serrage étant mobiles entre une configuration dans laquelle elles permettent le rapprochement mutuel des ergots de serrage, et une configuration dans laquelle les ergots de serrage ne coopèrent pas avec lesdits logements.Chaque organe de liaison est un organe d'articulation comprenant une surface d'articulation (64,74) en forme de portion de sphère, apte à coopérer avec une surface d'articulation complémentaire ménagée, soit sur le levier, soit sur un organe auxiliaire monté sur ce levier. L'invention permet de réaliser un système de liaison isostatique optimal entre le levier de commande et les organes d'articulation. Cela assure une liaison sensiblement dépourvue de tout jeu. En outre l'invention supprime tout hyper statisme, lequel constitue un inconvénient majeur de l'art antérieur.This front stop (I) comprises a base plate (10) fixed to the gliding device, two clamping pieces (2,3) comprising an upper end provided with a clamping lug, and a lower end provided with a support rod, two connecting members (6,7) able to cooperate with a control lever (4), as well as two elastic means (27, 37), able to push a respective connecting member against the control lever , the clamping parts being movable between a configuration in which they allow the mutual approximation of the clamping lugs, and a configuration in which the clamping lugs do not cooperate with said housings. Each connecting member is an articulation member comprising a articulation surface (64, 74) in the form of a portion of a sphere, able to cooperate with a complementary articulation surface provided, either on the lever, or on an auxiliary member mounted on this lever. The invention makes it possible to produce an optimal isostatic connection system between the control lever and the articulation members. This ensures a connection substantially devoid of any play. In addition, the invention eliminates any hyper droop, which constitutes a major drawback of the prior art.
Description
La présente invention a trait au domaine technique des fixations d'engins de glisse. À titre d'exemples non limitatifs, les engins de glisse visés par l'invention sont notamment destinés à la pratique du ski ou surf de randonnée, du télémark ainsi que du ski nordique et du ski de fond. L'invention concerne plus particulièrement une butée avant appartenant à la fixation d'un engin de glisse, ainsi qu'un engin de glisse équipé d'une telle butée avant.The present invention relates to the technical field of bindings for sliding devices. By way of nonlimiting examples, the gliding devices targeted by the invention are intended in particular for the practice of ski or snowboard touring, telemark as well as Nordic skiing and cross-country skiing. The invention relates more particularly to a front stop belonging to the binding of a sliding device, as well as a sliding device equipped with such a front stop.
La butée avant équipant les engins de glisse, visés par l'invention, assure une liaison de l'extrémité avant de la chaussure de l'utilisateur avec le ski. Cette butée, dans un mode dit de randonnée, permet à la chaussure de l'utilisateur de pivoter autour d'un axe transversal, situé à l'avant du pied. Cette rotation autorise un décollement du talon par rapport à l'engin, en particulier la planche de ski. Cela permet par conséquent à l'utilisateur d'exercer un effort optimal de poussée, notamment lors d'une phase de montée.The front stop fitted to the sliding devices covered by the invention provides a connection between the front end of the user's boot and the ski. This stop, in a so-called hiking mode, allows the user's shoe to pivot about a transverse axis, located at the front of the foot. This rotation allows the heel to detach from the machine, in particular the ski board. This consequently allows the user to exert an optimum pushing force, in particular during a climb phase.
La demande de brevet européen
Ces deux mâchoires sont associées à un mécanisme à ressort, ce qui leur permet d'occuper deux positions stables. Dans une première position, dite fermée ou encore dite de serrage, les ergots sont rapprochés mutuellement et coopèrent avec les orifices précités. Dans une seconde position, dite ouverte, les mâchoires sont mutuellement écartées. De la sorte, les ergots sont désolidarisés par rapport à la chaussure, laquelle peut alors être séparée du ski.These two jaws are associated with a spring mechanism, which allows them to occupy two stable positions. In a first position, called closed or also called clamping, the pins are brought together and cooperate with the aforementioned orifices. In a second position, called open, the jaws are mutually separated. In this way, the lugs are separated from the boot, which can then be separated from the ski.
La solution proposée dans cette demande de brevet européen implique cependant certains inconvénients. Ainsi l'utilisateur peut rencontrer certaines difficultés à engager sa chaussure dans la fixation. En effet il est nécessaire de mettre en regard les orifices de la chaussure avec les ergots, ce qui peut se révéler malcommode en pratique.However, the solution proposed in this European patent application involves certain drawbacks. Thus the user may encounter certain difficulties in engaging his shoe in the binding. In fact, it is necessary to place the orifices of the boot opposite the lugs, which may prove to be inconvenient in practice.
Afin de remédier à cet inconvénient, certains fabricants ont prévu de réaliser une butée, qui est destinée à coopérer avec l'avant de la chaussure. Cette butée apporte un avantage, en ce qu'elle assure un positionnement relativement précis de la chaussure, selon la direction longitudinale. À cet égard, on citera les demandes de brevet européen
On mentionnera également le brevet européen
On citera enfin la demande de brevet européen
Malgré les efforts entrepris par les différents fabricants, en vue d'améliorer les butées avant du type décrit ci-dessus, ces dernières ne se révèlent pas totalement satisfaisantes.Despite the efforts made by the various manufacturers, with a view to improving the front stops of the type described above, the latter do not prove to be completely satisfactory.
En effet il a été constaté que ces butées avant sont relativement fragiles, notamment en ce qu'elles sont sujettes à des casses prématurées. Par ailleurs il est difficile, pour le fabricant, d'identifier de façon précise l'origine de ces casses. En outre ces butées avant se révèlent difficiles à dimensionner, si on souhaite les adapter à différentes morphologies d'utilisateurs.In fact, it has been observed that these front stops are relatively fragile, in particular in that they are subject to premature breakage. Furthermore, it is difficult for the manufacturer to identify precisely the origin of these breakages. In addition, these front stops prove to be difficult to size, if it is desired to adapt them to different morphologies of users.
Compte tenu de ce qui précède, la présente invention vise à remédier à au moins certains inconvénients de l'art antérieur évoqués ci-dessus.In view of the foregoing, the present invention aims to remedy at least certain drawbacks of the prior art mentioned above.
Selon l'invention, au moins un des objectifs ci-dessus est réalisé par une butée avant pour engin de glisse, notamment pour la pratique du ski ou surf de randonnée, du télémark ainsi que du ski nordique et du ski de fond, ladite butée avant comprenant /
- une plaque de base (10) comportant des moyens de fixation sur le corps principal de cet engin de glisse, notamment une planche (80) dudit ski (8),
- deux pièces de serrage (2,3) disposées de part et d'autre d'un plan médian de ladite butée, chaque pièce de serrage comportant une extrémité supérieure pourvue d'un ergot de serrage, ainsi qu'une extrémité inférieure pourvue d'une tige de support,
- un levier de commande (4) articulé sur la plaque de base, autour d'un axe transversal,
- deux organes de liaison (6,7), dont chacun est guidé par au moins une tige respective, chaque organe de liaison étant apte à coopérer avec le levier de commande,
- deux moyens élastiques (27, 37), chaque moyen élastique étant apte à repousser un organe de liaison respectif contre le levier de commande,
- une configuration dite fermée ou rapprochée, dans laquelle lesdites pièces de serrage permettent le rapprochement mutuel des ergots de serrage, de sorte que ces ergots coopèrent avec des logements ménagés dans une chaussure, formant ainsi un axe de pivotement de cette chaussure, et
- une configuration dite ouverte ou écartée, dans laquelle les ergots de serrage ne coopèrent pas avec lesdits logements, de façon à libérer la chaussure vis-à-vis des pièces de serrage,
- a base plate (10) comprising means for fixing to the main body of this gliding device, in particular a board (80) of said ski (8),
- two clamping pieces (2,3) arranged on either side of a median plane of said stopper, each clamping piece comprising an upper end provided with a clamping lug, and a lower end provided with a support rod,
- a control lever (4) articulated on the base plate, around a transverse axis,
- two connecting members (6,7), each of which is guided by at least one respective rod, each connecting member being able to cooperate with the control lever,
- two elastic means (27, 37), each elastic means being able to push a respective connecting member against the control lever,
- a so-called closed or close configuration, in which said clamping pieces allow the clamping lugs to be brought together so that these lugs cooperate with housings provided in a shoe, thus forming a pivot axis of this shoe, and
- a so-called open or spaced configuration, in which the clamping lugs do not cooperate with said housings, so as to release the shoe vis-à-vis the clamping parts,
La butée avant conforme à l'invention peut comprendre tout ou partie des caractéristiques suivantes, dans la mesure où elles sont techniquement compatibles :
- la surface d'articulation en forme de portion de sphère appartient à une tête (64,74 ; 164, 174) en forme de portion de sphère,
- ladite surface d'articulation complémentaire est une cavité oblongue (50,55 ; 150,155) prévue sur une paroi latérale respective du levier de commande (4 ; 104),
- la cavité oblongue comprend une piste de roulement (51) de forme sensiblement cylindrique, dont le diamètre est voisin du diamètre de la tête,
- chaque cavité oblongue (50,55) est ménagée directement dans la paroi latérale du levier de commande,
- chaque cavité oblongue (150,155) est ménagée dans un insert (105), lequel est rapporté dans un renfoncement du levier de commande,
- la surface d'articulation complémentaire est une cavité sphérique (250,255 ; 350,355) prévue sur ledit organe auxiliaire,
- ledit organe auxiliaire (205) est monté coulissant par rapport au levier de commande, notamment grâce à une rainure de guidage équipant levier de commande, cette rainure de guidage étant apte à coopérer avec une gorge dudit organe auxiliaire,
- ledit organe auxiliaire (305) est libre de coulisser par rapport au levier de commande, sans entrer en contact avec ce levier de commande,
- les deux têtes sphériques des organes d'articulation sont reliées mutuellement de manière directe, en étant apte à pivoter l'une par rapport à l'autre autour d'un axe de rotation et en étant apte à prendre contact directement avec des parois du levier de commande,
- l'axe de pivotement se trouve à distance des centres respectifs des têtes sphériques,
- l'axe de pivotement passe par les centres confondus des têtes sphériques,
- le levier de commande possède un orifice oblong d'articulation sur sa chape de montage, de manière à lui conférer une possibilité de coulissement selon son axe principal,
- les surfaces d'articulation en forme de portion de sphère comprennent une cavité en forme de portion de sphère,
- les surfaces d'articulation complémentaire comprennent une tête en forme de portion de sphère, cette tête étant prévue sur ledit organe auxiliaire monté coulissant par rapport au levier de commande,
- durant le déplacement des pièces de serrage entre leur configuration fermée leur configuration ouverte, seules les surfaces d'articulation sphérique de chaque organe d'articulation entrent en contact avec les surfaces d'articulation complémentaire,
- les surfaces d'articulation sphérique s'étendent sur une portion de sphère supérieure à 10°, au moins supérieur à 20°,
- les surfaces d'articulation sphérique s'étendent sur une portion de sphère dont le diamètre est compris entre 2 et 15 millimètres,
- chaque moyen élastique comprend un unique ressort, dans le volume intérieur duquel s'étend une unique tige de support,
- chaque organe d'articulation comprend une collerette, permettant l'appui d'une extrémité dudit ressort unique.
- the articulation surface in the form of a portion of a sphere belongs to a head (64,74; 164, 174) in the form of a portion of a sphere,
- said complementary articulation surface is an oblong cavity (50,55; 150,155) provided on a respective side wall of the control lever (4; 104),
- the oblong cavity comprises a rolling track (51) of substantially cylindrical shape, the diameter of which is close to the diameter of the head,
- each oblong cavity (50,55) is made directly in the side wall of the control lever,
- each oblong cavity (150, 155) is formed in an insert (105), which is attached in a recess of the control lever,
- the complementary articulation surface is a spherical cavity (250,255; 350,355) provided on said auxiliary member,
- said auxiliary member (205) is slidably mounted relative to the control lever, in particular by virtue of a guide groove fitted to the control lever, this guide groove being able to cooperate with a groove of said auxiliary member,
- said auxiliary member (305) is free to slide relative to the control lever, without coming into contact with this control lever,
- the two spherical heads of the articulation members are directly connected to one another, being able to pivot with respect to one another about an axis of rotation and being able to make direct contact with the walls of the lever control,
- the pivot axis is at a distance from the respective centers of the spherical heads,
- the pivot axis passes through the centers of the spherical heads,
- the control lever has an oblong articulation hole on its mounting yoke, so as to give it the possibility of sliding along its main axis,
- the articulation surfaces in the form of a portion of a sphere comprise a cavity in the form of a portion of a sphere,
- the complementary articulation surfaces comprise a head in the form of a portion of a sphere, this head being provided on said auxiliary member slidably mounted relative to the control lever,
- during the movement of the clamping pieces between their closed configuration and their open configuration, only the spherical articulation surfaces of each articulation member come into contact with the complementary articulation surfaces,
- the spherical articulation surfaces extend over a portion of a sphere greater than 10 °, at least greater than 20 °,
- the spherical articulation surfaces extend over a portion of a sphere whose diameter is between 2 and 15 millimeters,
- each elastic means comprises a single spring, in the interior volume of which extends a single support rod,
- each articulation member comprises a collar, allowing the support of one end of said single spring.
L'invention a également pour objet un engin de glisse comprenant une butée avant conforme à celle décrite ci-dessus.The subject of the invention is also a gliding device comprising a front stop according to that described above.
Il est du mérite du Demandeur d'avoir identifié que les inconvénients de l'art antérieur, décrit ci-dessus, sont imputables en particulier à la nature de la transmission entre le levier de commande et les organes de liaison. En particulier le demandeur a mis en lumière que, dans cet art antérieur, cette transmission conduit à un hyper statisme du système.It is to the Applicant's merit to have identified that the drawbacks of the prior art, described above, are attributable in particular to the nature of the transmission between the control lever and the connecting members. In particular, the applicant has brought to light that, in this prior art, this transmission leads to hyper droop of the system.
Au contraire, l'invention permet de réaliser un système de liaison isostatique optimal entre le levier de commande et les organes d'articulation. Cela assure une liaison sensiblement dépourvue de tout jeu, dans le système. En effet les appuis du levier de commande sur les surfaces sphériques, appartenant aux organes d'articulation, permettent de garantir un parfait positionnement des pièces, avec un déplacement proche de la cinématique théorique.On the contrary, the invention makes it possible to produce an optimal isostatic connection system between the control lever and the articulation members. This provides for a substantially slack free connection in the system. Indeed the support of the control lever on the spherical surfaces, belonging to the articulation members, make it possible to guarantee a perfect positioning of the parts, with a displacement close to the theoretical kinematics.
En outre le système de liaison conforme à l'invention supprime tout hyper statisme, lequel constitue comme on l'a vu un inconvénient majeur de l'art antérieur. En effet, les formes sphériques des organes d'articulation garantissent que sensiblement aucun couple ne sera transmis sur les tiges de guidage. Par ailleurs, aucun effort parasite significatif ne sollicitera cette tige de guidage.In addition, the connection system according to the invention eliminates any hyper droop, which constitutes, as we have seen, a major drawback of the prior art. Indeed, the spherical shapes of the articulation members guarantee that substantially no torque will be transmitted to the guide rods. Furthermore, no significant parasitic force will stress this guide rod.
Conformément à un mode avantageux de l'invention des organes d'articulation, équipés de portions de sphère, viennent en contact avec des cavités du levier de commande. Étant donné que ces cavités sont identiques et de forme oblongue, typiquement selon une piste de roulement, un comportement parfaitement symétrique du système est garanti.In accordance with an advantageous embodiment of the invention, articulation members, equipped with portions of a sphere, come into contact with cavities of the control lever. Given that these cavities are identical and oblong in shape, typically along a rolling track, perfectly symmetrical behavior of the system is guaranteed.
On soulignera que le document
D'autres avantages de l'invention apparaîtront à la lecture de la description de différents modes de réalisation de l'invention, donnée ci-dessous à titre purement indicatif et non limitatif, en référence aux dessins annexés dans lesquels :
- [
Fig. 1 ] est une vue en perspective, illustrant les différents éléments constitutifs d'une butée avant conforme à l'invention. - [
Fig. 2 ] est une vue en perspective, illustrant la butée avant conforme à l'invention dans sa configuration ouverte. - [
Fig. 3 ] est une vue de côté, illustrant la butée avant conforme à l'invention dans sa configuration ouverte. - [
Fig. 4 ] est une vue en perspective, analogue à lafigure 2 , illustrant la butée avant conforme à l'invention dans sa configuration fermée. - [
Fig. 5 ] est une vue de côté, analogue à lafigure 3 , illustrant la butée avant conforme à l'invention dans sa configuration fermée. - [
Fig. 6 ] est une vue en perspective, illustrant sous un autre angle la butée avant dans sa configuration fermée. - [
Fig. 7 ] est une vue en coupe transversale, illustrant la configuration fermée de cette butée avant. - [
Fig. 8 ] est une vue de dessus, illustrant la configuration fermée de cette butée avant. - [
Fig. 9 ] est une vue en perspective, illustrant à plus grande échelle la coopération entre un organe d'articulation et un levier de commande, appartenant à la butée avant conforme à l'invention. - [
Fig. 10 ] est une vue en coupe transversale, illustrant à grande échelle le profil de cet organe d'articulation, ainsi que d'une cavité de réception de cet organe d'articulation, laquelle est ménagée dans le levier de commande. - [
Fig. 11 ] est une vue de côté, illustrant à grande échelle la tête de l'organe d'articulation, reçue dans la cavité du levier de commande. - [
Fig. 12 ] est une vue en coupe longitudinale, illustrant les positions relatives du levier de commande et de l'organe d'articulation, lors d'une première phase du pivotement de ce levier de commande. - [
Fig. 13 ] est une vue en coupe longitudinale, illustrant les positions relatives du levier de commande et de l'organe d'articulation, lors d'une deuxième phase du pivotement de ce levier de commande. - [
Fig. 14 ] est une vue en coupe longitudinale, illustrant les positions relatives du levier de commande et de l'organe d'articulation, lors d'une troisième phase du pivotement de ce levier de commande. - [
Fig. 15 ] est une vue en perspective, illustrant une première variante de réalisation de l'invention, de façon assemblée. - [
Fig. 16 ] est une vue en perspective, illustrant la première variante de réalisation de l'invention, de façon éclatée. - [
Fig. 17 ] est une vue en perspective, illustrant une deuxième variante de réalisation de l'invention, de façon assemblée. - [
Fig. 18 ] est une vue en perspective, illustrant la deuxième variante de réalisation de l'invention, de façon assemblée. - [
Fig. 19 ] est une vue en perspective, illustrant une troisième variante de réalisation de l'invention. - [
Fig. 20 ] est une vue en coupe transversale, illustrant la variante de réalisation de lafigure 19 . - [
Fig. 21 ] est une vue en perspective, illustrant une quatrième variante de réalisation de l'invention. - [
Fig. 22 ] est une vue en en perspective, selon un premier angle, illustrant la coopération entre les organes d'articulation appartenant à la variante de réalisation de lafigure 21 . - [
Fig. 23 ] est une vue en en perspective, selon un deuxième angle, illustrant la coopération entre les organes d'articulation appartenant à la variante de réalisation de lafigure 21 . - [
Fig. 24 ] est une vue en en perspective, selon un troisième angle, illustrant la coopération entre les organes d'articulation appartenant à la variante de réalisation de lafigure 21 . - [
Fig. 25 ] est une vue en perspective illustrant des organes d'articulation d'une cinquième variante de réalisation de l'invention, de façon assemblée. - [
Fig. 26 ] est une vue en perspective illustrant des organes d'articulation de la cinquième variante de réalisation de l'invention, de façon éclatée. - [
Fig. 27 ] est une vue de côté, illustrant un levier de commande appartenant à une sixième variante de réalisation de l'invention. - [
Fig. 28 ] est une vue en perspective, illustrant un levier de commande appartenant à la sixième variante de réalisation de l'invention. - [
Fig. 29 ] est une vue en perspective, illustrant une septième variante de réalisation de l'invention, de façon assemblée. - [
Fig. 30 ] est une vue en perspective, illustrant la septième variante de réalisation de l'invention, de façon éclatée.
- [
Fig. 1 ] is a perspective view illustrating the various constituent elements of a front stop according to the invention. - [
Fig. 2 ] is a perspective view illustrating the front stop according to the invention in its open configuration. - [
Fig. 3 ] is a side view, illustrating the front stop according to the invention in its open configuration. - [
Fig. 4 ] is a perspective view, analogous to thefigure 2 , illustrating the front stop according to the invention in its closed configuration. - [
Fig. 5 ] is a side view, analogous to thefigure 3 , illustrating the front stop according to the invention in its closed configuration. - [
Fig. 6 ] is a perspective view, illustrating from another angle the front stop in its closed configuration. - [
Fig. 7 ] is a cross-sectional view, illustrating the closed configuration of this front stop. - [
Fig. 8 ] is a top view, illustrating the closed configuration of this front stop. - [
Fig. 9 ] is a perspective view, illustrating on a larger scale the cooperation between an articulation member and a control lever, belonging to the front stop according to the invention. - [
Fig. 10 ] is a cross-sectional view, illustrating on a large scale the profile of this articulation member, as well as of a receiving cavity of this articulation member, which is provided in the control lever. - [
Fig. 11 ] is a side view, illustrating on a large scale the head of the articulation member, received in the cavity of the control lever. - [
Fig. 12 ] is a longitudinal sectional view, illustrating the relative positions of the control lever and of the articulation member, during a first phase of the pivoting of this control lever. - [
Fig. 13 ] is a longitudinal sectional view, illustrating the relative positions of the control lever and of the articulation member, during a second phase of the pivoting of this control lever. - [
Fig. 14 ] is a longitudinal sectional view, illustrating the relative positions of the control lever and of the articulation member, during a third phase of the pivoting of this control lever. - [
Fig. 15 ] is a perspective view illustrating a first variant embodiment of the invention, assembled. - [
Fig. 16 ] is a perspective view, illustrating the first variant embodiment of the invention, in an exploded manner. - [
Fig. 17 ] is a perspective view, illustrating a second variant embodiment of the invention, assembled. - [
Fig. 18 ] is a perspective view, illustrating the second variant embodiment of the invention, assembled. - [
Fig. 19 ] is a perspective view illustrating a third variant embodiment of the invention. - [
Fig. 20 ] is a cross-sectional view, illustrating the alternative embodiment of thefigure 19 . - [
Fig. 21 ] is a perspective view illustrating a fourth variant embodiment of the invention. - [
Fig. 22 ] is a perspective view, from a first angle, illustrating the cooperation between the articulation members belonging to the variant embodiment of thefigure 21 . - [
Fig. 23 ] is a perspective view, from a second angle, illustrating the cooperation between the articulation members belonging to the variant embodiment of thefigure 21 . - [
Fig. 24 ] is a perspective view, from a third angle, illustrating the cooperation between the articulation members belonging to the variant embodiment of thefigure 21 . - [
Fig. 25 ] is a perspective view illustrating the articulation members of a fifth variant embodiment of the invention, in an assembled manner. - [
Fig. 26 ] is a perspective view illustrating articulation members of the fifth variant embodiment of the invention, in exploded fashion. - [
Fig. 27 ] is a side view illustrating a control lever belonging to a sixth variant embodiment of the invention. - [
Fig. 28 ] is a perspective view illustrating a control lever belonging to the sixth variant embodiment of the invention. - [
Fig. 29 ] is a perspective view, illustrating a seventh variant embodiment of the invention, assembled. - [
Fig. 30 ] is a perspective view illustrating the seventh variant embodiment of the invention, exploded.
Les repères numériques suivants sont utilisés sur les figures et dans la description :
- 2,3
- Pièce de serrage
- 4,104,204,304,604,704
- Levier de commande
- 6,7,206,207,706,707
- Organes d'articulation
- 8,80
- Ski (8), planche du ski (80)
- 9,90
- Chaussure (9), Extrémité avant de la chaussure (90)
- 10
- Plaque de base
- 12,22,32
- Orifice
- 14,15,16
- Chape
- 20,30,21,31
- Aile intérieure (20,30) et extérieure (21,31)
- 23,33
- Axe
- 24,34
- Ergot
- 25,35
- Fourreau
- 26,36
- Tige
- 27,37
- Ressort de compression
- 28,29,38
- Première (28,38) et deuxième (29) extrémité du ressort de compression
- 40
- Orifice transversal
- 41
- Axe
- 42,43,243,343
- Extrémités avant (42) et arrière (43)
de 4 - 44
- Orifice transversal
- 45
- Axe
- 46
- Patte de verrouillage
- 50,55,250,255,650
- Cavités
- 51
- Portion centrale (piste de roulement)
- 52,53
Extrémités de 51- 60,70
- Fût
- 62,72
- Collerette périphérique
- 64,74
- Tête d'articulation
- 91,92
- Logements latéraux pour
24,34ergots - 105,205,305
- Insert, organe auxiliaire
- 159
- Ouverture
- 249
- Rainure médiane
- 258
Gorge médiane de 205- 264,274,364,374,464,474,564,574
- Tête
- 344
- Chambre
- 345 ,346
- Surfaces planes
- 465,475
- Saillie
- 466,476
- Evidement
- 565
- Axe
- 649
- Orifice oblong
- 749
- Tige
- 741
- Organe d'articulation complémentaire
- 747
- Tête sphérique
- 764,774
- Cavité
- 2.3
- Clamping piece
- 4,104,204,304,604,704
- Control lever
- 6,7,206,207,706,707
- Articulation organs
- 8.80
- Skiing (8), ski board (80)
- 9.90
- Shoe (9), Front end of shoe (90)
- 10
- Base plate
- 12.22.32
- Orifice
- 14.15.16
- Screed
- 20.30.21.31
- Inner (20.30) and outer (21.31) wing
- 23.33
- Axis
- 24.34
- Ergot
- 25.35
- Scabbard
- 26.36
- Rod
- 27.37
- Compression spring
- 28.29.38
- First (28,38) and second (29) end of the compression spring
- 40
- Cross port
- 41
- Axis
- 42,43,243,343
- Front (42) and rear (43) ends of 4
- 44
- Cross port
- 45
- Axis
- 46
- Lock tab
- 50,55,250,255,650
- Cavities
- 51
- Central portion (runway)
- 52.53
- Ends of 51
- 60.70
- Was
- 62.72
- Perimeter collar
- 64.74
- Joint head
- 91.92
- Lateral housings for lugs 24.34
- 105,205,305
- Insert, auxiliary organ
- 159
- Opening
- 249
- Middle groove
- 258
- 205 median groove
- 264,274,364,374,464,474,564,574
- Head
- 344
- Room
- 345, 346
- Flat surfaces
- 465,475
- Protrusion
- 466,476
- Obviously
- 565
- Axis
- 649
- Oblong port
- 749
- Rod
- 741
- Complementary articulation organ
- 747
- Spherical head
- 764,774
- Cavity
Dans cette description, les expressions « avant », « arrière », « devant », « derrière », « avance » et « recul » se réfèrent à la direction du ski en situation normale d'utilisation. Comme cela est illustré sur les
La plaque de base 10 est destinée à être fixée sur un engin de glisse, notamment une planche de ski. De manière avantageuse, cette fixation est de type amovible. Dans l'exemple illustré, différents orifices 12 sont creusés dans la plaque, de manière à permettre le passage de moyens de fixation amovible, par exemple des vis. Enfin cette plaque 10 supporte plusieurs chapes, à savoir des chapes 14 et 15 destinées au montage des pièces de serrage 2 et 3, ainsi qu'une chape 16 destinée au montage du levier 4.The
Les pièces de serrage 2 et 3, qui sont mutuellement symétriques, présentent sensiblement une forme de L. Chaque pièce comporte ainsi une aile intérieure 20,30, ainsi qu'une aile extérieure 21,31. Au voisinage de leur jonction avec l'aile extérieure, chaque aile intérieure est creusée d'un orifice 22,32 destiné au passage d'un axe physique 23,33. Une fois que chaque axe 23,33 est monté sur une chape respective 14,15, chaque pièce de serrage est libre de pivoter par rapport à la plaque de base autour d'un axe géométrique noté A2, A3. Ces axes sont dénommés longitudinaux, à savoir qu'ils s'étendent selon la direction principale de l'engin de glisse, une fois que la butée avant selon l'invention est installée sur ce dernier.The clamping
Par ailleurs, au voisinage de son extrémité libre opposée à l'aile intérieure, chaque aile extérieure 21,31 est équipée d'un ergot respectif 24,34. Comme on le verra dans ce qui suit, chaque ergot est destiné à coopérer, de façon connue en soi, avec la chaussure d'un utilisateur.Furthermore, in the vicinity of its free end opposite the inner wing, each
Au voisinage de son extrémité libre opposée à l'aile extérieure, chaque aile intérieure délimite un fourreau 25,35, dans lequel est montée une tige respective 26,36. La fixation mutuelle entre chaque fourreau et chaque tige, qui est avantageusement de type permanent, est par exemple réalisé par montage serré à la presse ou bien serti. Enfin des ressorts de compression 27,37 sont disposés autour d'une tige respective 26 et 36. La première extrémité 28,38 de chacun de ces ressorts prend appui, en service, contre les parois du fourreau 25,35.In the vicinity of its free end opposite the outer wing, each inner wing defines a
Le levier 4, qui présente une forme allongée, possède un axe longitudinal noté X4, lequel est parallèle à l'axe longitudinal du ski une fois que la butée avant est montée sur ce dernier. Dans sa partie médiane ce levier 4 est creusé d'un orifice transversal 40, permettant la réception d'un axe physique 41 susceptible de coopérer avec la chape 16. Une fois que le levier est monté sur cette chape, il est libre de pivoter par rapport à la plaque de base autour d'un axe géométrique transversal, noté A4.The
Des cavités 50 et 55 sont ménagées sur les flancs latéraux opposés 48 et 49, appartenant au levier 4. Ces cavités, qui forment un élément essentiel de l'invention, seront décrites plus en détail dans ce qui suit. Par ailleurs l'extrémité avant 42 du levier est creusée d'un orifice transversal 44, permettant le passage d'un axe physique 45. Ce dernier assure l'articulation d'une patte de verrouillage 46, par rapport au levier 4, autour d'un axe transversal A46.
Les organes d'articulation 6 et 7, qui sont identiques, comprennent tout d'abord un fût 60,70, destiné à l'introduction d'une tige respective 26,36. On notera qu'il existe une possibilité de coulissement mutuel de cette tige par rapport à ce fût, selon leur axe principal. Ce fût est prolongé par une collerette périphérique 62,72, permettant l'appui de la seconde extrémité 29,39 de chaque ressort de compression 27,37. The
Chaque organe d'articulation comprend en outre une tête d'articulation 64,74, prolongeant la collerette à l'opposé du fût. Chaque tête est formée par une portion de sphère, comme le montre en particulier la
En référence à nouveau au levier 4 décrit ci-dessus, les cavités 50 et 55, qui sont symétriques par rapport à un plan longitudinal, sont de forme oblongue. En particulier la cavité 50, qui est illustrée notamment sur les
Cette piste 51 est terminée par des portions d'extrémité 52 et 53, qui sont notamment visibles sur la
La mise en œuvre de la butée avant I, décrite ci-dessus, va maintenant être explicitée dans ce qui suit. On suppose que la plaque de base 10, appartenant à cette butée, est fixée sur la planche 80 d'un ski 8. Par ailleurs les
Cette butée possède tout d'abord une configuration ouverte, illustrée sur les
Dans cette configuration ouverte, l'utilisateur est susceptible d'appuyer vers le bas sur l'extrémité arrière 43 du levier 4, au moyen de l'extrémité avant 90 de la chaussure. Cela entraîne le pivotement du levier, selon la flèche F4. Le déplacement vers le bas de l'extrémité 43 entraîne les organes d'articulation 6 et 7, qui induisent un pivotement vers l'intérieur des pièces de serrage, selon les flèches F2 et F3. Au terme de ce pivotement, les ergots de serrage 24 et 34 pénètrent dans les logements 91,92. In this open configuration, the user is able to press down on the
La butée avant se trouve alors dans sa configuration fermée, illustrée sur les
De façon connue en soi, cette butée avant peut être verrouillée dans cette configuration ouverte. À cet effet, l'utilisateur bascule la patte de verrouillage 46 vers le haut, selon la flèche F46 montrée sur la
Les
Il est à souligner que, lors de la course du levier qui permet le déplacement mutuel des pièces de serrage, avantageusement seule la surface d'articulation sphérique 64', 74' de chaque tête 64,74 vient en contact avec les parois des cavités oblongues. En d'autres termes, aucune surface non sphérique ne coopère avec ces parois, ce qui confère les avantages du système tels qu'ils ont été présentés ci-dessus.It should be noted that, during the travel of the lever which allows the mutual displacement of the clamping parts, advantageously only the spherical articulation surface 64 ', 74' of each
Les
La butée avant des
La butée avant des
Lors du pivotement du levier de commande, l'organe auxiliaire 205 est libre de coulisser selon l'axe principal du levier de commande 204, selon la flèche F205. À cet effet, l'extrémité arrière 243 du levier 204 est ouverte, en présentant une forme de C. Par ailleurs, les parois de cette extrémité ouverte sont munies d'une rainure médiane 249, le long de laquelle peut se déplacer la gorge 258 de l'organe auxiliaire 205. Ce mode de réalisation présente des avantages spécifiques. En effet, il garantit de très faibles frottements, sur des transmissions d'efforts élevés.When the control lever is pivoted, the
La butée avant des
Dans cette variante des
La butée avant des
En service, comme dans le mode de réalisation précédente, les têtes sphériques prennent indirectement appui contre les surfaces planes de la chambre 444, avec possibilité de coulissement le long de l'axe principal du levier. Ce mode de réalisation présente des avantages spécifiques. En effet il autorise une réduction du nombre d'éléments mécaniques, tout en permettant une transmission directe des efforts depuis les têtes d'articulation sphériques vers le levier de commande.In service, as in the previous embodiment, the spherical heads indirectly bear against the flat surfaces of the
La butée avant des
La butée avant des
En d'autres termes la possibilité de coulissement entre le levier de commande et des organes d'articulation, matérialisée par la flèche f604, est assurée au niveau de l'orifice oblong dans ce sixième mode de réalisation, et non pas au niveau des cavités oblongues comme dans le premier mode de réalisation. La butée avant illustrée sur ces
La butée avant des
L'invention n'est pas limitée aux exemples décrits et représentés ci-dessus. Ainsi, dans les différents modes de réalisation ci-dessus, chaque organe d'articulation coopère avec un unique ressort et une unique tige. Cependant, à titre de variante non représentée, on peut prévoir que chaque organe d'articulation coopère avec deux voire trois ressorts, ainsi que deux ou trois tiges. Cependant l'utilisation d'un unique ressort et d'une unique tige constitue un mode de réalisation préféré. En effet, une telle utilisation est plus particulièrement avantageuse pour éviter tout hyper statisme intempestif.The invention is not limited to the examples described and represented above. Thus, in the various embodiments above, each articulation member cooperates with a single spring and a single rod. However, as a variant not shown, provision can be made for each articulation member to cooperate with two or even three springs, as well as two or three rods. However, the use of a single spring and a single rod constitutes a preferred embodiment. Indeed, such a use is more particularly advantageous to avoid any untimely hyper droop.
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20000037 | 2020-01-24 | ||
FR2001367A FR3106501B1 (en) | 2020-01-24 | 2020-02-12 | Front stop for gliding device, and gliding device equipped with such a front stop |
Publications (3)
Publication Number | Publication Date |
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EP3854465A1 true EP3854465A1 (en) | 2021-07-28 |
EP3854465B1 EP3854465B1 (en) | 2024-05-15 |
EP3854465C0 EP3854465C0 (en) | 2024-05-15 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP21152435.0A Active EP3854465B1 (en) | 2020-01-24 | 2021-01-20 | Front binding for a gliding device and gliding device provided with such a front binding |
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EP (1) | EP3854465B1 (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0199098A2 (en) | 1985-03-25 | 1986-10-29 | Fritz Dipl.-Ing. Barthel | Cross-country ski binding |
EP2300111A1 (en) | 2008-04-03 | 2011-03-30 | G3 Genuine Guide Gear Inc. | Toe unit for alpine touring binding |
EP2392388A1 (en) | 2010-06-02 | 2011-12-07 | Salewa Sport AG | Touring binding |
EP2659940A1 (en) | 2012-05-04 | 2013-11-06 | Atk Race S.R.L. | Toe piece for a mountaineering ski binding |
US20130328289A1 (en) * | 2012-06-12 | 2013-12-12 | Skis Rossignol | Toepiece Which Releases a Boot Automatically as a Result of Twisting |
EP2722081A1 (en) | 2012-10-22 | 2014-04-23 | Salomon S.A.S. | Front abutment of a binding of a snow gliding device and snow gliding device provided with such a binding |
EP3050601A1 (en) * | 2015-01-30 | 2016-08-03 | Atk Race S.R.L. | A toe-piece for an alpine ski binding |
EP3219368A2 (en) * | 2016-03-18 | 2017-09-20 | Fritz Barthel | Front unit for a slide board |
-
2021
- 2021-01-20 EP EP21152435.0A patent/EP3854465B1/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0199098A2 (en) | 1985-03-25 | 1986-10-29 | Fritz Dipl.-Ing. Barthel | Cross-country ski binding |
EP2300111A1 (en) | 2008-04-03 | 2011-03-30 | G3 Genuine Guide Gear Inc. | Toe unit for alpine touring binding |
EP2392388A1 (en) | 2010-06-02 | 2011-12-07 | Salewa Sport AG | Touring binding |
EP2659940A1 (en) | 2012-05-04 | 2013-11-06 | Atk Race S.R.L. | Toe piece for a mountaineering ski binding |
US20130328289A1 (en) * | 2012-06-12 | 2013-12-12 | Skis Rossignol | Toepiece Which Releases a Boot Automatically as a Result of Twisting |
EP2722081A1 (en) | 2012-10-22 | 2014-04-23 | Salomon S.A.S. | Front abutment of a binding of a snow gliding device and snow gliding device provided with such a binding |
EP3050601A1 (en) * | 2015-01-30 | 2016-08-03 | Atk Race S.R.L. | A toe-piece for an alpine ski binding |
EP3219368A2 (en) * | 2016-03-18 | 2017-09-20 | Fritz Barthel | Front unit for a slide board |
Also Published As
Publication number | Publication date |
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EP3854465B1 (en) | 2024-05-15 |
EP3854465C0 (en) | 2024-05-15 |
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