CH678793A5

CH678793A5 - Ski boot in synthetic material with replaceable leg - has base of leg having horizontal axle fitting into cylindrical hollow in projection on back of shell

Info

Publication number: CH678793A5
Application number: CH2291/89A
Authority: CH
Inventors: Mirco Bergamin
Original assignee: Lange Int Sa
Priority date: 1989-06-20
Filing date: 1989-06-20
Publication date: 1991-11-15

Abstract

The boot is made in synthetic material and has a shell (1) and a leg (2), which is one or two parts. The leg is articulated on the back of the shell and has a metallic axle (6) at its base which is held between two projections (7,8). This fits into a cylindrical hollow (4), with a transversal axis, in a projection (3) on the shell. The axle is pushed through a transversal slot (5) in the projection whose diameter is equal the diameter of the hollow. The lower part (3b) of the projection is thinner than its upper part (3a) and can flex. USE/ADVANTAGE - The ski boot has a leg which can be easily replaced.

Description

       

  
 



  La présenté invention concerne une chaussure de ski comprenant une coque entourant le pied et le talon et une tige, en une ou deux parties, articulée sur cette coque. 



  Les tiges des chaussures de ski sont généralement fixées sur la coque au moyen de rivets constituant simultanément l'articulation de la tige. Du document DE-A 2 317 408, on connaît également une chaussure dont la tige est articulée à la coque au moyen d'une charnière, elle-même fixée au moyen de rivets à la coque et à la tige. Dans les deux cas, l'attachement de la tige à la coque nécessite une opération de rivetage. En outre, si une partie de la tige doit être remplacée, il est nécessaire de faire sauter les rivets, ce qui ne peut guère se faire sans abîmer la chaussure. 



  L'invention a pour but de faciliter le montage et le démontage et par conséquent le remplacement de la tige, respectivement d'au moins la partie postérieure de la tige de la chaussure. 



  La chaussure de ski selon l'invention est caractérisée par le fait que les moyens assurant l'articulation d'au moins une partie de la tige sur la coque sont des éléments de profils conjugués assemblés par pression. 



  On utilise l'élasticité de la matière synthétique, plus précisément la capacité que présente cette matière de pouvoir se déformer élastiquement tout en présentant une rigidité suffisante satisfaisant aux conditions posées par une chaussure de ski. 



  L'assemblage des profils conjugués peut se faire dans la direction de l'axe d'articulation ou transversalement à cet axe. 



  Le dessin annexé représente, à titré d'exemple, quelques formes d'exécution de la chaussure selon l'invention. 
 
   La fig. 1 est un éclaté d'une première forme d'exécution. 
   Là fig. 2 est un éclaté d'une deuxième forme d'exécution. 
   Là fig. 3 représente une chaussure fermée selon une troisième forme d'exécution. 
   La fig. 4 est une coupe selon IV-IV de la fig. 3. 
   La fig. 5 est une coupe selon V-V de la figure 3. 
 



  La fig. 1 représente l'arrière d'une coque 1 d'une chaussure de ski destinée à entourer le pied et le talon et la partie inférieure de la partie postérieure 2 de la tige de cette chaussure, partie postérieure articulée à l'arrière de la coque 1. La matière synthétique de la coque 1 présente à l'arrière une protubérance 3 dans laquelle est formé un logement cylindrique 4 d'axe horizontal transversal présentant une fente 5 s'étendant selon une génératrice. De son côté la partie postérieure 2 de la tige est munie d'un profil mâle constitué d'un axe 6 en métal tenu entre deux saillies 7 et 8. L'axe 6 peut être fixé dans la partie 2 lors du moulage. Le diamètre de l'axe 6 est égal au diamètre du logement cylindrique 5. Pour attacher la partie 2 de la  tige à la coque 1, il suffit d'introduire à force l'axe 6 à travers la fente 5.

  L'élasticité de la matière synthétique permet à la fente 5 de s'écarter pour se refermer ensuite derrière l'axe 6. Il convient de relever que la partie inférieure 3b de la protubérance 3 de la coque est plus mince que la partie supérieure 3a. C'est donc la partie 3b qui va fléchir élastiquement pour laisser passer l'axe 6. Par la suite, la partie 3b n'a que peu d'effort à supporter. Par contre, la partie 3a doit supporter un effort de traction lors de la flexion de la jambe. C'est pourquoi cette partie 3a est relativement épaisse, résistante et peu flexible. 



  Les deux saillies 7 et 8 viennent se placer exactement de part et d'autre de la protubérance 3 de la coque, de telle sorte que la partie 2 de la tige est parfaitement maintenue latéralement et dans un plan vertical. 



  L'attachement de la partie 2 de la tige à la coque 1 s'effectue donc sans moyen auxiliaire et il est amovible. La partie 2 de la tige peut être détachée de la coque par une simple traction et remplacée en un tournemain par une autre pièce. 



  Une seconde forme d'exécution est représentée à la fig. 2 ou l'on reconnaît la partie arrière d'une coque 1 min  analogue à la coque 1 de la fig. 1. Sur cette coque 1 min  vient s'articuler une tige constituée d'une partie antérieure 9 et d'une partie postérieure 10. La partie antérieure 9 est munie, de chaque côté, d'un trou circulaire 11. La partie postérieure de la tige est également munie, de chaque côté, d'un trou circulaire 12 de même diamètre que le trou 11, ce trou 12 communiquant toutefois avec le bord de la partie 10  par une enchoche en V 13 s'ouvrant vers l'extérieur. La coque 1' présente, sur ses faces latérales intérieures un lamage circulaire dans lequel vient se loger le flasque 15 d'un tube 16 en matière synthétique traversant la paroi de la coque 1 min  pour former un pivot.

  Le diamètre de ce pivot est légèrement inférieur au diamètre des trous circulaires 11 et 12 et sensiblement inférieur à la largeur de l'entrée de l'encoche 13. Les pivots 16 étant en place sur la coque 1 min , la partie antérieure 9 de la tige est enfilée sur ces pivots par ses trous 11. L'ensemble est fixé, de chaque côté, au moyen d'un bouton 17 en matière synthétique muni d'une tige filetée 18 et de deux méplats 19 et 20, ainsi que d'une tête conique 21 présentant une fente diamétrale en V divisant la tête en deux parties susceptibles de se rapprocher élastiquement en fermant la fente 22. Le diametre de la partie filetée 18 est égal au diamètre intérieur du pivot 16. Le diamètre de la tête 21 est par contre légèrement supérieur au diamètre intérieur du pivot 16. Par une simple pression sur le bouton 17, celui-ci pénètre et traverse le pivot 16.

  Lors de cette pénétration, la tête 21 se resserre, puis se détend derrière le flasque 15 du pivot. La longueur de la tige 18 et du bouton 17 est telle qu'il est encore possible d'introduire la partie postérieure 10 de la tige entre la partie intérieure 9 et la coque 1 min . On amène les encoches 13 sur les pivots 16, puis, par une simple pression, on introduit à force les pivots 16 à travers ces encoches 13 dans les trous 12. 



  La partie postérieure 10 de la tige peut être enlevée par une simple traction dirigée en arrière. Les boutons 17 peuvent être enlevés par dévissage. A cet effet, le diamètre extérieur de la partie filetée est légèrement supérieur au diamètre intérieur des pivots 16, de telle  sorte qu'il pénètre légèrement dans la paroi du passage cylindrique intérieur du pivot 16. La traction exercée sur la tête est suffisante pour refermer la fente 22 et permettre à la tête 21 de passer à travers le pivot 16. 



   Selon une variante d'exécution représentée à la fig. 2a, la partie postérieure 10 de la tige pourrait également être pourvue de trous circulaires 12 min  analogues aux trous 11 de la partie 9. La partie 10 est alors enfilée sur les pivots 16 comme la partie 9. 



  Une troisième forme d'exécution est représentée aux fig. 3 à 5. La chaussure est à nouveau constituée d'une coque 1 min  min  sur laquelle est articulée une tige constituée d'une partie antérieure 23 et d'une partie postérieure 24 venant s'emboîter dans la partie 23. Les deux parties 23 et 24 peuvent être fermées et serrées autour de la cheville au moyen d'une boucle 25. La partie antérieure 23 est articulée sur la coque 1 min  min  au moyen de deux rivets 26 et 27. L'articulation pourrait cependant être réalisée comme représentée à la fig. 2. La partie postérieure 24 de la tige est munie de deux champignons 28 et 29 venus d'une pièce avec la partie 24. Les têtes de ces champignons 28 et 29 sont engagées à force dans des trous circulaires de diamètre inférieur à ces têtes, prévus dans la partie postérieure 23 de la tige.

   La partie postérieure 24 peut être fixée avant ou après la fixation de la partie 23 sur la coque 1 min  min . La partie postérieure 24 de la tige n'est donc pas articulée directement sur la coque 1 min  min , mais seulement sur la partie antérieure 23. Les articulations 28 et 29 étant en arrière des articulations 26 et 27, la partie 24 peut basculer plus facilement en arrière pour l'ouverture de la chaussure. 



  Les champignons pourraient être formés sur la partie antérieure et les trous sur la partie postérieure. La partie antérieure 23 pourrait également être articulée sur la coque 1 min  min au moyen de champignons et de trous à la place des rivets 26 et 27. 



  Les modes d'assemblage selon les fig. 2 à 5 sont bien entendu également applicables aux chaussures dont la tige est en une seule pièce. 



  
 



  The present invention relates to a ski boot comprising a shell surrounding the foot and the heel and a rod, in one or two parts, articulated on this shell.



  The uppers of ski boots are generally fixed to the shell by means of rivets simultaneously constituting the articulation of the uppers. Document DE-A 2 317 408 also discloses a shoe, the upper of which is articulated to the shell by means of a hinge, itself fixed by means of rivets to the shell and to the upper. In both cases, the attachment of the rod to the shell requires a riveting operation. In addition, if part of the upper needs to be replaced, it is necessary to blow up the rivets, which can hardly be done without damaging the shoe.



  The invention aims to facilitate assembly and disassembly and therefore the replacement of the upper, respectively at least the rear part of the upper of the shoe.



  The ski boot according to the invention is characterized in that the means ensuring the articulation of at least part of the upper on the shell are elements of conjugate profiles assembled by pressure.



  The elasticity of the synthetic material is used, more precisely the capacity that this material has to be able to deform elastically while having sufficient rigidity satisfying the conditions posed by a ski boot.



  The assembly of the conjugate profiles can be done in the direction of the articulation axis or transversely to this axis.



  The appended drawing represents, by way of example, some embodiments of the shoe according to the invention.
 
   Fig. 1 is an exploded view of a first embodiment.
   There fig. 2 is an exploded view of a second embodiment.
   There fig. 3 shows a closed shoe according to a third embodiment.
   Fig. 4 is a section on IV-IV of FIG. 3.
   Fig. 5 is a section along V-V in FIG. 3.
 



  Fig. 1 represents the rear of a shell 1 of a ski boot intended to surround the foot and the heel and the lower part of the rear part 2 of the upper of this shoe, rear part articulated at the rear of the shell 1. The synthetic material of the shell 1 has at the rear a protuberance 3 in which is formed a cylindrical housing 4 of transverse horizontal axis having a slot 5 extending along a generatrix. For its part, the rear part 2 of the rod is provided with a male profile consisting of a metal pin 6 held between two projections 7 and 8. The pin 6 can be fixed in part 2 during molding. The diameter of the axis 6 is equal to the diameter of the cylindrical housing 5. To attach the part 2 of the rod to the shell 1, it suffices to force the axis 6 through the slot 5.

  The elasticity of the synthetic material allows the slot 5 to move away, then closing behind the axis 6. It should be noted that the lower part 3b of the protuberance 3 of the shell is thinner than the upper part 3a . It is therefore the part 3b which will flex elastically to allow the axis 6 to pass. Thereafter, the part 3b has little effort to bear. On the other hand, the part 3a must support a tensile force during the bending of the leg. This is why this part 3a is relatively thick, resistant and not very flexible.



  The two projections 7 and 8 are placed exactly on either side of the protuberance 3 of the shell, so that the part 2 of the rod is perfectly maintained laterally and in a vertical plane.



  The attachment of part 2 of the rod to the shell 1 is therefore carried out without auxiliary means and it is removable. Part 2 of the rod can be detached from the shell by a simple pull and replaced in a jiffy by another part.



  A second embodiment is shown in FIG. 2 or we recognize the rear part of a shell 1 min similar to the shell 1 of FIG. 1. On this shell 1 min is articulated a rod consisting of a front part 9 and a rear part 10. The front part 9 is provided, on each side, with a circular hole 11. The rear part of the rod is also provided, on each side, with a circular hole 12 of the same diameter as the hole 11, this hole 12 however communicating with the edge of the part 10 by a V-shaped notch 13 opening towards the outside. The shell 1 ′ has, on its internal lateral faces, a circular counterbore in which the flange 15 of a tube 16 made of synthetic material is housed passing through the wall of the shell 1 min to form a pivot.

  The diameter of this pivot is slightly less than the diameter of the circular holes 11 and 12 and substantially less than the width of the entry of the notch 13. The pivots 16 being in place on the shell 1 min, the front part 9 of the rod is threaded on these pivots through its holes 11. The assembly is fixed, on each side, by means of a button 17 made of synthetic material provided with a threaded rod 18 and two flats 19 and 20, as well as a conical head 21 having a diametrical V-shaped slit dividing the head into two parts capable of approaching elastically by closing the slit 22. The diameter of the threaded part 18 is equal to the internal diameter of the pivot 16. The diameter of the head 21 is on the other hand slightly greater than the internal diameter of the pivot 16. By a simple press on the button 17, the latter penetrates and passes through the pivot 16.

  During this penetration, the head 21 tightens, then relaxes behind the flange 15 of the pivot. The length of the rod 18 and of the button 17 is such that it is still possible to introduce the rear part 10 of the rod between the internal part 9 and the shell 1 min. The notches 13 are brought to the pivots 16, then, by a simple pressure, the pivots 16 are forced into place through these notches 13 in the holes 12.



  The rear part 10 of the rod can be removed by a simple pull directed backwards. The buttons 17 can be removed by unscrewing. For this purpose, the external diameter of the threaded part is slightly greater than the internal diameter of the pivots 16, so that it penetrates slightly into the wall of the internal cylindrical passage of the pivot 16. The traction exerted on the head is sufficient to close the slot 22 and allow the head 21 to pass through the pivot 16.



   According to an alternative embodiment shown in FIG. 2a, the rear part 10 of the rod could also be provided with circular holes 12 min similar to the holes 11 in the part 9. The part 10 is then threaded on the pivots 16 like the part 9.



  A third embodiment is shown in Figs. 3 to 5. The shoe again consists of a shell 1 min min on which is articulated a rod consisting of a front part 23 and a rear part 24 which fits into the part 23. The two parts 23 and 24 can be closed and tightened around the ankle by means of a loop 25. The front part 23 is articulated on the shell 1 min min by means of two rivets 26 and 27. The articulation could however be carried out as shown in fig. 2. The rear part 24 of the stem is provided with two mushrooms 28 and 29 which come in one piece with the part 24. The heads of these mushrooms 28 and 29 are forcibly engaged in circular holes of diameter smaller than these heads, provided in the rear part 23 of the rod.

   The rear part 24 can be fixed before or after the fixing of the part 23 on the shell 1 min min. The rear part 24 of the rod is therefore not articulated directly on the shell 1 min min, but only on the front part 23. The articulations 28 and 29 being behind the articulations 26 and 27, the part 24 can tilt more easily back to open the shoe.



  Mushrooms could be formed on the front side and the holes on the back side. The front part 23 could also be articulated on the shell 1 min min by means of mushrooms and holes in place of the rivets 26 and 27.



  The assembly methods according to fig. 2 to 5 are of course also applicable to shoes whose upper is in one piece.

Claims

1. Ski boot made of synthetic material comprising a shell (1) surrounding the foot and the heel and a rod in one or two parts (2; 9, 10; 23, 24), articulated on this shell, characterized in that the means ensuring the articulation of at least part of the rod on the shell are elements of conjugate profiles (4, 6; 12, 13, 16; 11, 16, 17; 28, 29) assembled by pressure.

2. Shoe according to claim 1, characterized in that the articulation of the upper (2; 10; 24) consists of at least two profiles respectively male and female (4, 6; 12, 13, 16; 28 , 29), respectively secured to the rod and the shell or vice versa, these two profiles being force-fit one inside the other.

3.

Shoe according to claim 2, the upper of which consists of a front part and a rear part (2) which fits into the front part, characterized in that the rear part of the upper (2) is provided , at its lower end, a male profile in the shape of a cylindrical axis (6) and that the shell (1) is provided with a female profile of cylindrical split shape (4), the width of the slot (5) being less than the diameter of said cylindrical axis (6), so that said axis can be forced into the cylindrical female profile by elastically spreading the edges of the slot.

4. Shoe according to claim 3, characterized in that said female profile (4) is formed in a protuberance (3) of the material of the shell.

5.

Shoe according to claim 2, characterized in that the upper, respectively the rear part of the upper (10) is provided with two female profiles each consisting of a V-notch (13) opening into a circular cutout (13) and that the hull (1 min) is provided with two male profiles each consisting of a cylindrical pivot (16) whose diameter is less than the width of the entry of said V-shaped notch and equal to the diameter of said circular cutout (12 ), so that the pivot can be engaged in the circular cutout by the V-shaped notch, elastically spreading the sides of this notch.

6.

Shoe according to claim 1 or 5, characterized in that the articulation of the upper, respectively of the front part (9) of the upper on the shell is produced by means of two pivots (16) made of tubular pieces of material synthetic and provided with a flange (15) which is applied to the inner wall of the shell and that the rod, respectively of the front part (9) of the rod, crossed by the pivots, is retained on these pivots by a button (17) of synthetic material provided with a rod having a conical split head (21) whose diameter is greater than the inside diameter of the pivot, so that the button can be inserted by pressure into the pivot, the head coming relax and hang on the pivot flange.

7.

Shoe according to claim 6, characterized in that the rod (18) of the button (17) is threaded and has two parallel flats (19, 20), the outside diameter of the threaded part being slightly greater than the inside diameter of the pivot, so that the button can be removed by unscrewing.

8. Shoe according to claim 6 or 7, characterized in that the upper, respectively the rear part (10) of the upper is also provided with cylindrical holes (12 min) through which the pivots (16).

9. Shoe according to claim 2, characterized in that the male profile consists of a mushroom (28, 29) formed on one of the parts to be assembled and the female profile consists of a circular hole in which is forcibly engaged said mushroom.

10.

Shoe according to claim 9, the upper of which consists of a front part (23) and a rear part (24), characterized in that the rear part (24) of the upper is provided laterally with two mushrooms (28 , 29) whose head is engaged by pressure through two circular holes in the front part (23) of the rod. 1. Ski boot made of synthetic material comprising a shell (1) surrounding the foot and the heel and a rod in one or two parts (2; 9, 10; 23, 24), articulated on this shell, characterized in that the means ensuring the articulation of at least part of the rod on the shell are elements of conjugate profiles (4, 6; 12, 13, 16; 11, 16, 17; 28, 29) assembled by pressure. 2. Shoe according to claim 1, characterized in that the articulation of the upper (2; 10; 24) consists of at least two profiles respectively male and female (4, 6; 12, 13, 16; 28 , 29), respectively secured to the rod and the shell or vice versa, these two profiles being force-fit one inside the other. 3.

Shoe according to claim 2, the upper of which consists of a front part and a rear part (2) which fits into the front part, characterized in that the rear part of the upper (2) is provided , at its lower end, a male profile in the shape of a cylindrical axis (6) and that the shell (1) is provided with a female profile of cylindrical split shape (4), the width of the slot (5) being less than the diameter of said cylindrical axis (6), so that said axis can be forced into the cylindrical female profile by elastically spreading the edges of the slot. 4. Shoe according to claim 3, characterized in that said female profile (4) is formed in a protuberance (3) of the material of the shell. 5.

Shoe according to claim 2, characterized in that the upper, respectively the rear part of the upper (10) is provided with two female profiles each consisting of a V-notch (13) opening into a circular cutout (13) and that the hull (1 min) is provided with two male profiles each consisting of a cylindrical pivot (16) whose diameter is less than the width of the entry of said V-shaped notch and equal to the diameter of said circular cutout (12 ), so that the pivot can be engaged in the circular cutout by the V-shaped notch, elastically spreading the sides of this notch. 6.

Shoe according to claim 1 or 5, characterized in that the articulation of the upper, respectively of the front part (9) of the upper on the shell is produced by means of two pivots (16) made of tubular pieces of material synthetic and provided with a flange (15) which is applied to the inner wall of the shell and that the rod, respectively of the front part (9) of the rod, crossed by the pivots, is retained on these pivots by a button (17) of synthetic material provided with a rod having a conical split head (21) whose diameter is greater than the inside diameter of the pivot, so that the button can be inserted by pressure into the pivot, the head coming relax and hang on the pivot flange. 7.

Shoe according to claim 6, characterized in that the rod (18) of the button (17) is threaded and has two parallel flats (19, 20), the outside diameter of the threaded part being slightly greater than the inside diameter of the pivot, so that the button can be removed by unscrewing. 8. Shoe according to claim 6 or 7, characterized in that the upper, respectively the rear part (10) of the upper is also provided with cylindrical holes (12 min) through which the pivots (16). 9. Shoe according to claim 2, characterized in that the male profile consists of a mushroom (28, 29) formed on one of the parts to be assembled and the female profile consists of a circular hole in which is forcibly engaged said mushroom. 10.

Shoe according to claim 9, the upper of which consists of a front part (23) and a rear part (24), characterized in that the rear part (24) of the upper is provided laterally with two mushrooms (28 , 29) whose head is engaged by pressure through two circular holes in the front part (23) of the rod.