EP0156741A1 - Snow shoe - Google Patents
Snow shoe Download PDFInfo
- Publication number
- EP0156741A1 EP0156741A1 EP85420032A EP85420032A EP0156741A1 EP 0156741 A1 EP0156741 A1 EP 0156741A1 EP 85420032 A EP85420032 A EP 85420032A EP 85420032 A EP85420032 A EP 85420032A EP 0156741 A1 EP0156741 A1 EP 0156741A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- axis
- snowshoe
- racket
- rotation
- 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
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 11
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 241000909536 Gobiesocidae Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C13/00—Snow shoes
- A63C13/001—Bindings therefor
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C13/00—Snow shoes
- A63C13/005—Frames therefor
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C13/00—Snow shoes
- A63C13/006—Shoe support thereof, e.g. plate, movable relative to the frame
Definitions
- the present invention relates to a snowshoe to allow easy movement in all snow conditions on various reliefs, snowy with or without load.
- This snowshoe interests various areas such as hikes, walks, competitions, troop movements, shaking. risme.
- the shoes are fixed flat on a sieve or flexible plate forcing the hiker to raise the legs excessively. The result is slow and painful progression. At each step, the snow on the rear part of the snowshoe is thrown into the back of the hiker, causing him inconvenience and presenting risks of cooling.
- such a device avoids having to spread the legs excessively when using the rackets, thanks to the off-center of the frame; the device also avoids having to raise the legs excessively, thanks to the possibility of rotation of the frame around its axis of rotation.
- the rotation of the frame relative to the racket is not limited; during descents, it often happens that the racket makes a complete rotation around the axis of rotation, causing dangerous falls.
- the object of the present invention is in particular to avoid the drawbacks of known devices, by proposing a new form of snowshoe ensuring permanently excellent grip even on hard snow, whether uphill, downhill or overhanging.
- the racket is provided with means for attaching a shoe permanently ensuring effective attachment of the shoe relative to the axis of rotation; the user thus retains control of the direction of his racket.
- the means of --fixation of the shoe are adjustable, and offer the possibility of using varied and multi-size shoes, the adjustment being very fast.
- the racket is provided with means ensuring a very good lift on snow for a given total surface of racket, without increase in weight.
- the racket structure chosen makes it possible to produce a racket with sufficient lift by substantially reducing the total racket surface and its weight.
- the racket is particularly suitable for use on slopes, allowing lateral penetration of the racket in the snow on the upstream side.
- the racket has a good lagging effect without excessively braking the progression.
- the racket while having a good grip capacity, also avoids kick phenomena.
- the transverse axis of rotation forms a spacer opposing the bringing together of the side members of one another; a transverse intermediate spacer connects the side members below the sieve substantially below the user's heel; the screen comprises a flexible strap stretched between the side rails; a fin extends outwards the external lateral spar over its entire length and forms a sliding bearing surface; the pivoting frame comprises a base plate provided with a front stirrup and a rear heel piece intended to hold the front and rear of a shoe respectively, attachment means making it possible to secure the shoe on the frame.
- the end members and crosspieces have a T-shaped section, the central branch of which is oriented towards the underside of the frame and has a height of between 15 and 30 mm, the height being progressively reduced in the posterior zone of the frame to define a portion of least attachment.
- the presence of the central branch or lower rib provides excellent adhesion; associated with the flexible sieve and the posterior portion of less hooking, it does not produce any annoying phenomenon of kicking.
- the frame has a generally oblong shape narrowing towards the rear, the side members being substantially rectilinear and forming between them an angle of between 10 and 20 degrees, the end crosspieces forming a rounded profile.
- the external lateral fin allows the user to easily penetrate the upstream racket upwards into the snow when using it on a slope, and to slide it longitudinally, having only to lift the downstream part of the racket. .
- the fin significantly increases the lift qualities, without increasing the weight and the total surface of the racket.
- the racket comprises a removable strap and of adjustable length which connects the rear parts of the heel piece and the frame.
- the strap avoids the complete rotation of the racket around the axis of rotation, and its overturning.
- Figure 1 shows a bottom view of a left racket according to the invention.
- a straight racket can be obtained by symmetry with respect to the median longitudinal axis A-A.
- the racket comprises a rigid frame 1 generally planar, that is to say comprising a substantially planar part which can be raised at the front.
- the frame is formed by an interior lateral spar 2 and an exterior lateral spar 3 secured to each other by a front end cross member 4 and a rear end cross member 5.
- the side members 2 and 3 are substantially rectilinear, and the end cross members form a rounded profile, as shown in the figure.
- the frame has a generally oblong shape, tapering towards the rear 6, the side members forming between them an angle of between 10 and 20 degrees.
- the longitudinal members 2 and 3 and the cross members 4 and 5 have a T-shaped section whose central branch or rib is oriented towards the underside of the frame, and has a height of between 15 and 30 mm.
- the central branch 7 has a progressively reduced height, to reach, in the posterior terminal zone 8, a height less than 15 mm.
- the frame 1 is integral with a central sieve 9 forming an openwork bearing surface provided with a front opening or toe pass 10.
- the sieve 9 comprises a flexible strap 11 passing successively through the openings of the inner side branch 12 of the side rails 2 and 3.
- a nylon type polyamide strap welded at its two ends by ultrasound can be successfully used.
- the strap is stretched forming N, as shown in Figure 1, with alternately a transverse branch and an oblique branch. This arrangement ensures good tension of the screen.
- the frame 1 receives a transverse axis of rotation 14, disposed at the posterior end of the toe pass 10.
- the two ends of the axis 14 are housed in the side rails 2 and 3.
- the side member 3 has a housing 15 for receiving the axis 14.
- Figure 13 shows the housing in cross section
- Figure 14 is a top view
- Figure 15 illustrates the method for engaging the axis in his accommodation.
- the housing 15 is partially open upwards through an opening 16 limited by two lateral lips 17 and 18 and a transverse bevelled lip 19.
- the lips 17 and 18 are spaced apart by a distance slightly less than the diameter of the axis 14, while the transverse lip 19 is spaced from the lip corresponding to the spar 2 by a distance slightly less than the length of the axis 14. It will be understood that the insertion of the axis 14 is done by exerting pressure on the axis, as shown by arrow 20 to elastically spread the lips 17, 18 and 19.
- the transverse axis of rotation 14 forms a spacer opposing the bringing together of the side members of one another.
- the axis of rotation 14 receives, in its intermediate part, a pivoting frame 21 provided with attachment means for receiving and fixing the shoe of a user.
- the pivoting frame 21 comprises a rigid base plate 22 secured to a front stirrup 23 intended to hold the front of the sole of the shoe.
- the rear part of the plate 22 receives a heel piece 24 adapted by means of adjustment and locking in the longitudinal position.
- the base plate comprises, at its front part, lower housings 25 and 26 forming bearings for the passage of the axis of rotation 14.
- the plate 22 comprises, at its rear part, upper notches 27 cooperating with the means for adjusting the position of the heel piece 24. As shown in FIGS.
- the heel piece 24 comprises a body 28 ensuring the abutment of the heel of the shoe; two oblong cutouts 29 and 30 allow the passage of an attachment strap for fixing the shoe.
- the body 28 comprises a base with two walls 31 and 32 between which slides the plate 22.
- An elastic tongue 33 is cut in the upper wall 31, its end comprising a lug 34 intended to penetrate, under the effect of the elasticity of the tongue, in the notches 27 of the plate 22 for blocking the heel piece 24 in position on the plate 22.
- a boss 35 can be provided in the upper part of the tongue 33, boss which is pushed back by the heel of the shoe and which forces the introduction of the lug 34 into the notches 27.
- the notches 27 have an asymmetrical profile, as shown in FIG. 8, with an inclined rear face and a straight front face, allowing the advance adjustment of the lug once the shoe is in place; the retraction of the lug can only be carried out by lifting the tongue 33 by gripping the boss 35.
- the stirrup 23 has two raised edges 36 and 37, with oblong slots for the passage of an attachment strap. The edges are folded at 90 degrees and converge to allow the position and the abutment of the shoe. The front part of the stirrup 23 is folded down to form a crampon 38, in order to increase the grip on hard snow.
- the plate 22 is held laterally in position on the axis 14 by two tubular spacers 39 and 40 of adequate length threaded on the axis 14, as shown in Figure 1 .
- the inner spacer 39 is slightly shorter than the external spacer 40, for shifting the armature 21 towards the internal spar 2.
- the external lateral spar 3 is extended towards the outside, over its entire length, by a fin 41 forming a solid bearing surface.
- the frame 1 has a T section whose width is substantially equal to the height, the thickness of the branches of the T preferably being between 3 and 6 mm.
- the fin 41 can have the same thickness, between 3 and 6 mm, and constitutes a slightly flexible and relatively penetrating and slippery surface when the user applies the racket on its edge in the snow.
- the fin 41 has a width preferably between 25 mm and 60 mm, and may include a stiffening rib 42.
- the anterior part of the carrying surface of the racket is produced by protuberances 43 of the anterior end cross member 4, protuberances extending in the rearward direction and forming a carrying surface.
- a removable and adjustable strap 44 connects the rear part 45 of the heel piece and the rear part 46 of the frame 1.
- the strap 44 allows the shoe to move freely up to a maximum inclination fixed by the length of the strap 44, avoiding the complete reversal of the racket with respect to the shoe.
- the frame 1 can be made from molded plastic, also comprising the spacer 13 and the protuberances 43.
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Abstract
Description
La présente invention concerne une raquette à neige pour permettre le déplacement aisé en toutes neiges sur reliefs variés, enneigés avec ou sans charge.The present invention relates to a snowshoe to allow easy movement in all snow conditions on various reliefs, snowy with or without load.
Cette raquette à neige intéresse divers domaines tels que randonnées, promenades, compétitions, déplacements de troupes, secou-. risme.This snowshoe interests various areas such as hikes, walks, competitions, troop movements, shaking. risme.
Dans certains modèles de raquette connus, les chaussures sont fixées à plat sur un tamis ou plaque flexible obligeant le randonneur à lever exagérément les jambes. Il en résulte une progression lente et pénible. A chaque pas, la neige se trouvant sur la partie arrière de la raquette est projetée dans le dos du randonneur, lui causant des désagréments et présentant des risques de refroidissement.In some known racket models, the shoes are fixed flat on a sieve or flexible plate forcing the hiker to raise the legs excessively. The result is slow and painful progression. At each step, the snow on the rear part of the snowshoe is thrown into the back of the hiker, causing him inconvenience and presenting risks of cooling.
Dans la plupart des raquettes connues, le pied est fixé sur la raquette selon une position centrale, obligeant le randonneur à écarter anormalement les jambes pour se déplacer.In most known snowshoes, the foot is fixed on the racket in a central position, forcing the hiker to spread his legs abnormally to move.
On a proposé des raquettes comportant des moyens pour faire pivoter la chaussure par rapport au plan de la raquette, selon un axe transversal. Ainsi, le brevet US 4 161 071 décrit une raquette comprenant un cadre rigide tubulaire sensiblement plan formé d'un longeron latéral intérieur et d'un longeron latéral extérieur solidarisés l'un à l'autre par une traverse extrême antérieure et une traverse extrême postérieure. Le cadre est solidaire d'une surface portante centrale souple et ajourée munie d'un passe-orteils. Un axe de rotation transversal, disposé à l'extrêmité postérieure du passe-orteils, a ses deux extrémités retenues par les longerons latéraux ; sa partie intermédiaire porte une armature pivotante destinée à recevoir la partie antérieure d'une chaussure, des moyens d'attache assurant la fixation de la chaussure sur l'armature. L'armature est déportée légèrement vers le longeron intérieur du cadre, et des moyens permettent d'orienter l'axe de rotation de l'armature selon une direction oblique par rapport à l'axe longitudinal médian du cadre.Snowshoes have been proposed comprising means for pivoting the boot relative to the plane of the racket, along a transverse axis. Thus, US Pat. No. 4,161,071 describes a racket comprising a rigid tubular substantially planar frame formed by an internal lateral spar and an external lateral spar joined to one another by an anterior end cross member and a rear end cross member . The frame is integral with a flexible central openwork bearing surface provided with a toe pass. A transverse axis of rotation, disposed at the rear end of the toe pass, has its two ends retained by the side rails; its intermediate part carries a pivoting frame intended to receive the front part of a shoe, attachment means ensuring the fixing of the shoe on the frame. The frame is offset slightly towards the inner spar of the frame, and means make it possible to orient the axis of rotation of the frame in an oblique direction relative to the median longitudinal axis of the frame.
Un tel dispositif évite, d'une part, d'avoir à écarter exagérément les jambes lors de l'utilisation des raquettes, grâce au décentrage de l'armature ; le dispositif évite, par ailleurs, d'avoir à soulever exagérément les jambes, grâce à la possibilité de rotation de l'armature autour de son axe de rotation.On the one hand, such a device avoids having to spread the legs excessively when using the rackets, thanks to the off-center of the frame; the device also avoids having to raise the legs excessively, thanks to the possibility of rotation of the frame around its axis of rotation.
Toutefois, on a pu constater que ces raquettes connues présentent des qualités d'adhérence insuffisantes sur neige dure, provoquant des glissades dangereuses.However, it has been found that these known snowshoes have insufficient grip qualities on hard snow, causing dangerous slips.
D'autre part, la fixation de chaussures offre une mauvaise tenue du pied en cours de progression, et principalement dans les dévers et descentes. Ainsi, l'utilisateur n'est pas maître de la direction de la raquette.On the other hand, the fixation of shoes offers a poor holding of the foot in progress, and mainly in the slopes and descents. Thus, the user is not in control of the direction of the racket.
En outre, la rotation de l'armature par rapport à la raquette n'est pas limitée ; lors des descentes, il arrive fréquemment que la raquette effectue une rotation complète autour de l'axe de rotation, provoquant des chutes dangereuses.In addition, the rotation of the frame relative to the racket is not limited; during descents, it often happens that the racket makes a complete rotation around the axis of rotation, causing dangerous falls.
La présente invention a notamment pour objet d'éviter les inconvénients des dispositifs connus, en proposant une nouvelle forme de raquette à neige assurant en permanence un excellent accrochage même sur neige dure, tant en montée, qu'en descente ou en dévers.The object of the present invention is in particular to avoid the drawbacks of known devices, by proposing a new form of snowshoe ensuring permanently excellent grip even on hard snow, whether uphill, downhill or overhanging.
Selon un autre objet de l'invention, la raquette est munie de moyens de fixation d'une chaussure assurant en permanence une solida- risation efficace de la chaussure par rapport à l'axe de rotation ; l'utilisateur conserve ainsi le contrôle de direction de sa raquette.According to another object of the invention, the racket is provided with means for attaching a shoe permanently ensuring effective attachment of the shoe relative to the axis of rotation; the user thus retains control of the direction of his racket.
Les moyens de --fixation de la chaussure sont réglables, et offrent la possibilité d'utiliser des chaussures variées et multi-pointures, le réglage étant très rapide.The means of --fixation of the shoe are adjustable, and offer the possibility of using varied and multi-size shoes, the adjustment being very fast.
Selon un objet important de l'invention, la raquette est munie de moyens assurant une très bonne portance sur neige pour une surface totale donnée de raquette, sans augmentation de poids. En d'autres termes, la structure de raquette choisie permet de réaliser une raquette à portance suffisante en réduisant sensiblement la surface totale de raquette et son poids.According to an important object of the invention, the racket is provided with means ensuring a very good lift on snow for a given total surface of racket, without increase in weight. In other words, the racket structure chosen makes it possible to produce a racket with sufficient lift by substantially reducing the total racket surface and its weight.
Selon un autre objet. de l'invention, la raquette est particulièrement adaptée aux utilisations dans les dévers, permettant une pénétration latérale de la raquette dans la neige du côté amont.According to another object. of the invention, the racket is particularly suitable for use on slopes, allowing lateral penetration of the racket in the snow on the upstream side.
En outre, lors de l'utilisation en dévers, la structure particulière de la raquette permet de faire glisser longitudinalement dans la neige le bord extérieur de la raquette amont. Ainsi, les efforts nécessaires de la jambe amont sont considérablement réduits.In addition, during use on slopes, the particular structure of the racket allows the outer edge of the upstream racket to slide longitudinally in the snow. Thus, the necessary efforts of the upstream leg are considerably reduced.
Selon un autre objet de l'invention, la raquette présente un bon effet de traîne sans freiner exagérément la progression.According to another object of the invention, the racket has a good lagging effect without excessively braking the progression.
Il est bien connu que les dispositifs permettant un bon accrochage sur neige dure tendent généralement à produire un phénomène de bottage par accumulation de neige tassée en surface inférieure du dispositif. Selon la présente invention, la raquette, tout en présentant une bonne capacité d'adhérence, évite également les phénomènes de bottage.It is well known that the devices allowing a good grip on hard snow generally tend to produce a kick phenomenon by accumulation of packed snow on the bottom surface of the device. According to the present invention, the racket, while having a good grip capacity, also avoids kick phenomena.
Pour atteindre ces objets ainsi que d'autres, l'axe de rotation transversal forme entretoise s'opposant au rapprochement des longerons l'un de l'autre ; une entretoise intermédiaire transversale relie les longerons au-dessous du tamis sensiblement au-dessous du talon de l'utilisateur ; le tamis comprend une sangle flexible tendue entre les longerons latéraux ; un aileron prolonge vers l'extérieur le longeron latéral extérieur sur toute sa longueur et forme surface portante glissante ; l'armature pivotante comprend une plaque de base munie d'un étrier antérieur et d'une talonnière postérieure destinés à maintenir respectivement l'avant et l'arrière d'une chaussure, des moyens d'at-- tache permettant de solidariser la chaussure sur l'armature.To achieve these and other objects, the transverse axis of rotation forms a spacer opposing the bringing together of the side members of one another; a transverse intermediate spacer connects the side members below the sieve substantially below the user's heel; the screen comprises a flexible strap stretched between the side rails; a fin extends outwards the external lateral spar over its entire length and forms a sliding bearing surface; the pivoting frame comprises a base plate provided with a front stirrup and a rear heel piece intended to hold the front and rear of a shoe respectively, attachment means making it possible to secure the shoe on the frame.
Selon une autre caractéristique de l'invention, les longerons et traverses extrêmes présentent une section en forme de T dont la branche centrale est orientée vers la face inférieure du cadre et a une hauteur comprise entre 15 et 30 mm, la hauteur étant progressivement réduite dans la zone postérieure du cadre pour définir une portion de moindre accrochage. La présence de la branche centrale ou nervure inférieure procure une excellente capacité d'adhérence ; associée au tamis flexible et à la portion postérieure de moindre accrochage, elle ne produit pas de phénomène gênant de bottage.According to another characteristic of the invention, the end members and crosspieces have a T-shaped section, the central branch of which is oriented towards the underside of the frame and has a height of between 15 and 30 mm, the height being progressively reduced in the posterior zone of the frame to define a portion of least attachment. The presence of the central branch or lower rib provides excellent adhesion; associated with the flexible sieve and the posterior portion of less hooking, it does not produce any annoying phenomenon of kicking.
Selon une autre caractéristique de l'invention, le cadre a une forme générale oblongue se rétrécissant vers l'arrière, les longerons étant sensiblement rectilignes et faisant entre eux un angle compris entre 10 et 20 degrés, les traverses extrêmes formant un profil arrondi.According to another characteristic of the invention, the frame has a generally oblong shape narrowing towards the rear, the side members being substantially rectilinear and forming between them an angle of between 10 and 20 degrees, the end crosspieces forming a rounded profile.
Ces dispositions assurent un excellent accrochage sur toutes neiges.These provisions ensure excellent grip on all snow.
L'aileron latéral extérieur permet à l'utilisateur de faire facilement pénétrer la raquette amont vers le haut dans la neige lors d'une utilisation en dévers, et de la faire glisser longitudinalement, en n'ayant à soulever que la partie aval de raquette. En outre, l'aileron augmente sensiblement les qualités de portance, sans augmenter le poids et la surface totale de la raquette.The external lateral fin allows the user to easily penetrate the upstream racket upwards into the snow when using it on a slope, and to slide it longitudinally, having only to lift the downstream part of the racket. . In addition, the fin significantly increases the lift qualities, without increasing the weight and the total surface of the racket.
Selon une autre caractéristique de l'invention, la raquette comprend une sangle amovible et de longueur réglable qui relie les parties postérieures de la talonnière et du cadre. La sangle évite la rotation complète de la raquette autour de l'axe de rotation, et son retournement.According to another characteristic of the invention, the racket comprises a removable strap and of adjustable length which connects the rear parts of the heel piece and the frame. The strap avoids the complete rotation of the racket around the axis of rotation, and its overturning.
D'autres objets, caractéristiques et avantages de la présente invention, ressortiront de la description suivante d'un mode de réalisation particulier, faite en relation avec les figures jointes, parmi lesquelles :
- - la figure 1 représente une vue générale de dessous d'une raquette gauche selon l'invention ;
- - la figure 2 représente une coupe transversale selon l'axe I-I de la figure 1 ;
- - la figure 3 représente une vue partielle de dessus de la raquette au voisinage de l'axe I-I de la figure l ;
- - les figures 4, 5 et 6 illustrent l'utilisation de la raquette selon l'invention ;
- - la figure 7 montre en vue de dessus la plaque de base et l'étrier ;
- - la figure 8 représente une vue en coupe longitudinale selon l'axe II-II de la figure 7 ;
- - la figure 9 représente une vue de côté en coupe longitudinale de la talonnière selon l'axe III-III de la figure 3 ;
- - la figure 10 représente une vue en coupe transversale de la talonnière selon l'axe IV-IV de la figure 3 ; +
- - la figure 11 représente une vue en coupe transversale selon l'axe V-V de la figure 3 ; et
- - les figures 12 à 15 illustrent le mode de fixation de l'axe de rotation sur le cadre.
- - Figure 1 shows a general view from below of a left racket according to the invention;
- - Figure 2 shows a cross section along axis II of Figure 1;
- - Figure 3 shows a partial top view of the racket in the vicinity of axis II of Figure l;
- - Figures 4, 5 and 6 illustrate the use of the racket according to the invention;
- - Figure 7 shows a top view of the base plate and the bracket;
- - Figure 8 shows a longitudinal sectional view along the axis II-II of Figure 7;
- - Figure 9 shows a side view in longitudinal section of the heel along the axis III-III of Figure 3;
- - Figure 10 shows a cross-sectional view of the heel along the axis IV-IV of Figure 3; +
- - Figure 11 shows a cross-sectional view along the axis VV of Figure 3; and
- - Figures 12 to 15 illustrate the method of fixing the axis of rotation to the frame.
La figure 1 représente en vue de dessous une raquette gauche selon l'invention. Une raquette droite peut être obtenue par symétrie par rapport à l'axe longitudinal médian A-A.Figure 1 shows a bottom view of a left racket according to the invention. A straight racket can be obtained by symmetry with respect to the median longitudinal axis A-A.
Comme le représente la figure, la raquette comprend un cadre rigide 1 généralement plan, c'est à dire comportant une partie sensiblement plane pouvant être relevée à l'avant. Le cadre est formé d'un longeron latéral intérieur 2 et d'un longeron latéral extérieur 3 solidarisés l'un à l'autre par une traverse extrême antérieure 4 et une traverse extrême postérieure 5. Les longerons 2 et 3 sont sensiblement rectilignes, et les traverses extrêmes forment un profil arrondi, comme le représente la figure. Le cadre a une forme générale oblongue, se rétrécissant vers l'arrière 6, les longerons formant entre eux un angle compris entre 10 et 20 degrés.As shown in the figure, the racket comprises a rigid frame 1 generally planar, that is to say comprising a substantially planar part which can be raised at the front. The frame is formed by an interior
Les longerons 2 et 3 et les traverses 4 et 5 extrêmes présentent une section en forme de T dont la branche centrale ou nervure est orientée vers la face inférieure du cadre, et a une hauteur comprise entre 15 et 30 mm. A la partie arrière 6 du cadre 1, la branche centrale 7 a une hauteur progressivement réduite, pour atteindre, dans la zone postérieure terminale 8, une hauteur inférieure à 15 mm.The
Le cadre 1 est solidaire d'un tamis central 9 formant surface portante ajourée munie d'une ouverture antérieure ou passe-orteils 10. Le tamis 9 comprend une sangle flexible 11 passant successivement dans des lumières de la branche latérale intérieure 12 des longerons latéraux 2 et 3. On pourra utiliser avec succès une sangle en polyamide de type nylon soudée à ses deux extrémités par ultra-sons. La sangle est tendue en formant des N, comme le représente la figure 1, avec alternativement une branche transversale et une branche oblique. Cette disposition permet de garantir une bonne tension du tamis.The frame 1 is integral with a central sieve 9 forming an openwork bearing surface provided with a front opening or
Une entretoise intermédiaire 13 transversale, de section sensiblement circulaire, relie les longerons 2 et 3 au dessous du tamis 9, en une position sensiblement centrale destinée à être située au dessous du talon de l'utilisateur.An intermediate
Le cadre 1 reçoit un axe de rotation transversal 14, disposé à l'extrêmité postérieure du passe-orteils 10. Les deux extrémités de l'axe 14 sont logées dans les longerons latéraux 2 et 3. Comme le représente la figure 12, en vue de côté, le longeron 3 présente un logement 15 pour recevoir l'axe 14. La figure 13 représente le logement en coupe transversale, la figure 14 en est une vue de dessus, et la figure 15 illustre la méthode pour engager l'axe dans son logement. Comme le représentent ces figures, le logement 15 est partiellement ouvert vers le haut selon une ouverture 16 limitée par deux lèvres latérales 17 et 18 et une lèvre biseautée transversale 19. Les lèvres 17 et 18 sont écartées d'une distance légèrement inférieure au diamètre de l'axe 14, tandis que la lèvre transversale 19 est écartée de la lèvre correspondante du longeron 2 d'une distance légèrement inférieure à la longueur de l'axe 14. On comprendra que l'insertion de l'axe 14 se fait en exerçant une pression sur l'axe, comme le représente la flèche 20 pour écarter élastiquement les lèvres 17, 18 et 19. L'axe de rotation transversal 14 forme entretoise s'opposant au rapprochement des longerons l'un de l'autre.The frame 1 receives a transverse axis of
L'axe de rotation 14 reçoit, dans sa partie intermédiaire, une armature pivotante 21 munie de moyens d'attache pour recevoir et fixer la chaussure d'un utilisateur. L'armature pivotante 21 comprend une plaque de base rigide 22 solidaire d'un étrier antérieur 23 destiné à maintenir l'avant de la semelle de la chaussure. La partie postérieure de la plaque 22 reçoit une talonnière 24 adaptée par des moyens de réglage et de blocage en position longitudinale. Comme le représente les figures 7 et 8, la plaque de base comprend, à sa partie antérieure, des logements inférieurs 25 et 26 formant paliers pour le passage de l'axe de rotation 14. La plaque 22 comprend, à sa partie postérieure, des crantages supérieurs 27 coopérant avec les moyens de réglage en position de la talonnière 24. Comme le représentent les figures 3, 9, 10 et 11, la talonnière 24 comporte un corps 28 assurant la mise en butée du talon de la chaussure ; deux découpes oblongues 29 et 30 permettent le passage d'une sangle d'attache pour la fixation de la chaussure. Le corps 28 comprend une base à deux parois 31 et 32 entre lesquelles coulisse la plaque 22. Une languette élastique 33 est découpée dans la paroi supérieure 31, son extrémité comportant un ergot 34 destiné à pénétrer, sous l'effet de l'élasticité de la languette, dans les crantages 27 de la plaque 22 pour'bloquer la talonnière 24 en position sur la plaque 22. Un bossage 35 peut être prévu en partie supérieure de la languette 33, bossage qui est repoussé par le talon de la' chaussure et qui force l'introduction de l'ergot 34 dans les crantages 27. De préférence, les crantages 27 ont un profil dissymétrique, comme représenté sur la figure 8, avec une face postérieure inclinée et une face antérieure droite, permettant le réglage par avance de l'ergot une fois que la chaussure est en place ; le recul de l'ergot ne peut s'effectuer qu'en soulevant la languette 33 en agrippant le bossage 35.The axis of
L'étrier 23 comporte deux bords relevés 36 et 37, avec des lumières oblongues pour le passage d'une sangle d'attache. Les bords sont pliés à 90 degrés et sont convergents pour permettre le positionnement et la mise en butée de la chaussure. La partie antérieure de l'étrier 23 est repliée vers le bas pour former un crampon 38, dans le but d'augmenter l'accrochage sur neige dure.The
La plaque 22 est maintenue latéralement en position sur l'axe 14 par deux entretoises tubulaires 39 et 40 de longueur adéquate enfilées sur l'axe 14, comme le représente la figure 1..L'entretoise intérieure 39 est légèrement plus courte que l'entretoise extérieure 40, pour décaler l'armature 21 vers le longeron intérieur 2.The
Le longeron latéral extérieur 3 est prolongé vers l'extérieur, sur toute sa longueur, par un aileron 41 formant surface portante pleine. Dans le mode de réalisation représenté, le cadre 1 a une section en T dont la largeur est sensiblement égale à la hauteur, l'épaisseur des branches du T étant de préférence comprises entre 3 et 6 mm. L'aileron 41 peut avoir la même épaisseur, comprise entre 3 et 6 mm, et constitue une surface légèrement flexible et relativement pénétrante et glissante lorsque l'utilisateur applique la raquette sur sa tranche dans la neige. L'aileron 41 a une largeur comprise de préférence entre 25 mm et 60 mm, et peut comporter une nervure 42 de rigidification.The external
La p.artie antérieure de la surface portante de la raquette est réalisée par des excroissances 43 de la traverse extrême antérieure 4, excroissances s'étendant en direction de l'arrière et formant surface portante. La présence du bout antérieur de chaussure à proximité de cette surface, et le fait que la chaussure pivote vers le bas, évite tous phénomènes de bottage à ce niveau.The anterior part of the carrying surface of the racket is produced by protuberances 43 of the anterior end cross member 4, protuberances extending in the rearward direction and forming a carrying surface. The presence of the front end of the shoe near this surface, and the fact that the shoe pivots downwards, avoids any phenomenon of kicking at this level.
Comme le représentent les figures 4 à 6, lors de l'utilisation de la raquette, la chaussure pivote vers l'avant ; lorsque l'utilisateur soulève le pied, l'arrière de la raquette reste en appui glissant sur le sol, produisant un effet de traîne avantageux. Une sangle 44 amovible et de longueur réglable relie la partie postérieure 45 de la talonnière et la partie postérieure 46 du cadre 1. La sangle 44 permet le libre débattement de la chaussure jusqu'à une inclinaison maximale fixée par la longueur de la sangle 44, évitant le retournement complet de la raquette par rapport à la chaussure.As shown in Figures 4 to 6, when using the racket, the shoe pivots forward; when the user raises the foot, the back of the racket remains in sliding contact with the ground, producing an advantageous drag effect. A removable and
On pourra réaliser le cadre 1 en matière plastique moulée, comprenant également l'entretoise 13 et les excroissances 43.The frame 1 can be made from molded plastic, also comprising the
La présente invention n'est pas limitée aux modes de réalisation qui ont été explicitement décrits, mais elle en inclut les diverses variantes et généralisations contenues dans le domaine des revendications ci-après.The present invention is not limited to the embodiments which have been explicitly described, but it includes the various thereof. variants and generalizations contained in the field of claims below.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85420032T ATE33101T1 (en) | 1984-02-29 | 1985-02-26 | SNOWSHOE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR848403247A FR2560055B1 (en) | 1984-02-29 | 1984-02-29 | SNOWSHOE |
FR8403247 | 1984-02-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0156741A1 true EP0156741A1 (en) | 1985-10-02 |
EP0156741B1 EP0156741B1 (en) | 1988-03-23 |
Family
ID=9301608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85420032A Expired EP0156741B1 (en) | 1984-02-29 | 1985-02-26 | Snow shoe |
Country Status (6)
Country | Link |
---|---|
US (1) | US4604817A (en) |
EP (1) | EP0156741B1 (en) |
AT (1) | ATE33101T1 (en) |
CA (1) | CA1239946A (en) |
DE (1) | DE3561925D1 (en) |
FR (1) | FR2560055B1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2628981A1 (en) * | 1988-03-24 | 1989-09-29 | Gilot Francois | Ski boots flexible for snow board - have lateral spoilers fitting into normal bindings with boots held laterally, and wedges under boots |
EP0613704A1 (en) * | 1993-03-04 | 1994-09-07 | T S L (S.a.r.L.) | Improved snow shoe |
EP0613703A1 (en) * | 1993-03-04 | 1994-09-07 | Philippe Gallay | Improved attachment means for a boot to a snowshoe |
EP0671190A1 (en) * | 1994-03-11 | 1995-09-13 | Jacques Baldas | Snowshoe |
FR2725631A1 (en) * | 1994-10-18 | 1996-04-19 | Folly S | LOCKING MOUNT FOR SNOWSHOE OR SKI |
FR2742347A1 (en) * | 1995-12-19 | 1997-06-20 | Reynaud Robert | Snow shoe with pivoting plate for boot |
FR2971165A1 (en) * | 2011-02-03 | 2012-08-10 | Tsl Sport Equipment | Mounting for snowshoe for use by e.g. athlete, has hinged plate carrying front and rear retainers, where distance between retainers is adjustable to adapt to length of sole of snowshoe, and bolt placed in zone occupied by snowshoe |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5253437A (en) * | 1991-08-22 | 1993-10-19 | Klebahn Perry A | Snowshoe and snowshoe accessory |
US5531035A (en) * | 1993-10-22 | 1996-07-02 | Mountain Safety Research | Snowshoe binding assembly |
US5921007A (en) * | 1993-10-22 | 1999-07-13 | Mountain Safety Research, Inc. | Mountaineering snowshoe |
US5809667A (en) * | 1994-05-06 | 1998-09-22 | Liautaud; Jeffrey T. | Snowshoe having snap-on claw plate |
US5517772A (en) * | 1994-05-06 | 1996-05-21 | Sherpa, Inc. | Snowshoe having means limiting articulation of binding support plate |
US5493794A (en) * | 1994-05-25 | 1996-02-27 | Mckenzie; Mary M. | Combination snowshoe and binding |
US5459950A (en) * | 1994-09-13 | 1995-10-24 | Damm; Stephen E. | Collapsible snowshoe with a pivoting binding |
US5769444A (en) * | 1995-04-05 | 1998-06-23 | Mason; James Frederick | Snowshoe binding |
US5881477A (en) * | 1995-07-25 | 1999-03-16 | Spring Brook Manufacturing, Inc. | Snowshoe with adjustable bindings |
US5970632A (en) * | 1995-07-25 | 1999-10-26 | Spring Brook Manufacturing, Inc, | Snowshoe with adjustable bindings |
FR2754188B1 (en) * | 1996-10-07 | 1998-12-31 | Tech Sports Loisirs | IMPROVEMENT FOR A DEVICE FOR RETAINING A SHOE ON A SNOWSHOE |
US5829173A (en) * | 1997-03-05 | 1998-11-03 | Svetlik; Paul J. | Climbing snowshoe assembly having removable decking sections with binding-mounted crampon disposed therebetween |
USD405143S (en) * | 1998-05-04 | 1999-02-02 | Spring Brook Manufacturing, Inc. | Snowshoe |
US6178666B1 (en) * | 1999-10-12 | 2001-01-30 | Tubbs Snowshoe Company, Llc | Molded snowshoe |
US7555852B2 (en) * | 2006-01-18 | 2009-07-07 | K-2 Corporation | Snowshoe binding with contoured base |
FR3075060B1 (en) | 2017-12-15 | 2022-03-04 | Martin Plastiques Participations | SNOWSHOE |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2486868A (en) * | 1946-12-02 | 1949-11-01 | Mueller Joseph Bertrand | Metal snowshoe |
US3060600A (en) * | 1956-12-24 | 1962-10-30 | Howe Folding Furniture Inc | Snowshoe harness |
US4161071A (en) * | 1977-09-09 | 1979-07-17 | Fritz Maul | Snowshoe |
FR2429027A2 (en) * | 1978-06-20 | 1980-01-18 | Lacroix Paul | Snow shoe with non-slip grid - has foot platform placed to one side to avoid need to walk with legs wide apart |
US4351121A (en) * | 1980-05-13 | 1982-09-28 | Wallace Robert E | Snowshoe |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA542885A (en) * | 1957-07-02 | D. Cumming James | Snowshoe | |
US2769250A (en) * | 1956-04-23 | 1956-11-06 | John H Rinkinen | Adjustable footplate for snowshoe |
US4199880A (en) * | 1978-10-02 | 1980-04-29 | Frey Russell J | Combination ski boot walker and carrier |
US4259793A (en) * | 1979-08-15 | 1981-04-07 | Vermont Tubbs, Inc. | Light weight, high traction snow shoe |
-
1984
- 1984-02-29 FR FR848403247A patent/FR2560055B1/en not_active Expired
-
1985
- 1985-02-26 EP EP85420032A patent/EP0156741B1/en not_active Expired
- 1985-02-26 DE DE8585420032T patent/DE3561925D1/en not_active Expired
- 1985-02-26 AT AT85420032T patent/ATE33101T1/en not_active IP Right Cessation
- 1985-02-27 CA CA000475342A patent/CA1239946A/en not_active Expired
- 1985-02-27 US US06/706,092 patent/US4604817A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2486868A (en) * | 1946-12-02 | 1949-11-01 | Mueller Joseph Bertrand | Metal snowshoe |
US3060600A (en) * | 1956-12-24 | 1962-10-30 | Howe Folding Furniture Inc | Snowshoe harness |
US4161071A (en) * | 1977-09-09 | 1979-07-17 | Fritz Maul | Snowshoe |
FR2429027A2 (en) * | 1978-06-20 | 1980-01-18 | Lacroix Paul | Snow shoe with non-slip grid - has foot platform placed to one side to avoid need to walk with legs wide apart |
US4351121A (en) * | 1980-05-13 | 1982-09-28 | Wallace Robert E | Snowshoe |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2628981A1 (en) * | 1988-03-24 | 1989-09-29 | Gilot Francois | Ski boots flexible for snow board - have lateral spoilers fitting into normal bindings with boots held laterally, and wedges under boots |
EP0613704A1 (en) * | 1993-03-04 | 1994-09-07 | T S L (S.a.r.L.) | Improved snow shoe |
EP0613703A1 (en) * | 1993-03-04 | 1994-09-07 | Philippe Gallay | Improved attachment means for a boot to a snowshoe |
FR2702157A1 (en) * | 1993-03-04 | 1994-09-09 | Thones Sports Loisirs | Improvement for snowshoeing. |
FR2702156A1 (en) * | 1993-03-04 | 1994-09-09 | Gallay Philippe | Improvement for the binding of a shoe to a snowshoe. |
EP0671190A1 (en) * | 1994-03-11 | 1995-09-13 | Jacques Baldas | Snowshoe |
FR2717093A1 (en) * | 1994-03-11 | 1995-09-15 | Baldas Jacques | Improvement for snowshoeing. |
FR2725631A1 (en) * | 1994-10-18 | 1996-04-19 | Folly S | LOCKING MOUNT FOR SNOWSHOE OR SKI |
EP0707874A1 (en) * | 1994-10-18 | 1996-04-24 | Folly's | Lockable mounting block for snowshoe or ski |
FR2742347A1 (en) * | 1995-12-19 | 1997-06-20 | Reynaud Robert | Snow shoe with pivoting plate for boot |
FR2971165A1 (en) * | 2011-02-03 | 2012-08-10 | Tsl Sport Equipment | Mounting for snowshoe for use by e.g. athlete, has hinged plate carrying front and rear retainers, where distance between retainers is adjustable to adapt to length of sole of snowshoe, and bolt placed in zone occupied by snowshoe |
Also Published As
Publication number | Publication date |
---|---|
FR2560055B1 (en) | 1988-02-19 |
US4604817A (en) | 1986-08-12 |
FR2560055A1 (en) | 1985-08-30 |
EP0156741B1 (en) | 1988-03-23 |
DE3561925D1 (en) | 1988-04-28 |
CA1239946A (en) | 1988-08-02 |
ATE33101T1 (en) | 1988-04-15 |
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