EP0470383B1 - Ski boot - Google Patents

Ski boot Download PDF

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Publication number
EP0470383B1
EP0470383B1 EP91111458A EP91111458A EP0470383B1 EP 0470383 B1 EP0470383 B1 EP 0470383B1 EP 91111458 A EP91111458 A EP 91111458A EP 91111458 A EP91111458 A EP 91111458A EP 0470383 B1 EP0470383 B1 EP 0470383B1
Authority
EP
European Patent Office
Prior art keywords
stiffening element
ski boot
alpine ski
boot according
stiffening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91111458A
Other languages
German (de)
French (fr)
Other versions
EP0470383A1 (en
Inventor
Claude Perrissoud
Jean-Marie Begey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salomon SAS
Original Assignee
Salomon SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Salomon SAS filed Critical Salomon SAS
Publication of EP0470383A1 publication Critical patent/EP0470383A1/en
Application granted granted Critical
Publication of EP0470383B1 publication Critical patent/EP0470383B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00Footwear for sporting purposes
    • A43B5/04Ski or like boots
    • A43B5/0427Ski or like boots characterised by type or construction details
    • A43B5/047Ski or like boots characterised by type or construction details provided with means to improve walking with the skiboot
    • A43B5/0474Ski or like boots characterised by type or construction details provided with means to improve walking with the skiboot having a walk/ski position
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00Footwear for sporting purposes
    • A43B5/04Ski or like boots
    • A43B5/0427Ski or like boots characterised by type or construction details
    • A43B5/0452Adjustment of the forward inclination of the boot leg
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00Footwear for sporting purposes
    • A43B5/04Ski or like boots
    • A43B5/0427Ski or like boots characterised by type or construction details
    • A43B5/0452Adjustment of the forward inclination of the boot leg
    • A43B5/0454Adjustment of the forward inclination of the boot leg including flex control; Dampening means
    • A43B5/0456Adjustment of the forward inclination of the boot leg including flex control; Dampening means with the actuator being disposed at the rear side of the boot
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00Footwear for sporting purposes
    • A43B5/04Ski or like boots
    • A43B5/0427Ski or like boots characterised by type or construction details
    • A43B5/048Rear-entry skiboots
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43CFASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00Other fastenings specially adapted for shoes
    • A43C11/16Fastenings secured by wire, bolts, or the like

Definitions

  • the present invention relates to an alpine ski boot, comprising a shell bottom on the rear part of which is pivotally mounted, around a horizontal and transverse axis, the rear part of the upper of the boot.
  • Alpine ski boots with pivoting rod offer the advantage, compared to the boots used previously, with a rod forming a single piece with the bottom of the boot, of being able to follow the bending movements forward and backward. lower leg of the skier, during walking and skiing and that this rod can tilt backwards, totally or partially, to facilitate putting on and taking off.
  • Certain known boots of this type are moreover provided with locking devices which make it possible to block the upper relative to the bottom of the shell in a given position such that the lower leg of the skier, when he is putting on his boot, is inclined towards the forward with respect to the horizontal plane. In this forward inclined position, which is suitable for skiing, the rod makes, with the horizontal plane, an angle called "initial advance".
  • the locking devices for "advancing" the rod which are currently known, for example those described in European patents EP-B1-0 134 595 and EP-B1-0 086 908, are mounted on the lower and rear part of the stem. They comprise two parts fixed respectively to the upper of the shoe and to the bottom of the shell, these two parts being secured to each other in a first position, for blocking the upper in the "forward” position by relative to the bottom of the shell, and in a second position for unlocking the rod relative to the bottom of the shell, which then facilitates walking with the ski boot when the rod is held tight on the lower leg.
  • Document EP-A-242 526 describes a device for connecting a rod with respect to a shoe shell.
  • This device is a two-position toggle mechanism, the first known as the “closed position” where the rod is held with a certain elastic bending towards the front to allow skiing, the second known as the “open position” where the articulation of the rod on the shell is made over a sufficiently large range to allow walking.
  • Document EP-A-232 218 describes a shoe which comprises in particular a shell, a two-part upper, a damping device between the two parts of the upper and a mechanism for acting on the relative position of the shell and the stem.
  • a first position allows skiing to be practiced by holding the rear part of the rod towards the front, which is combined with elastic bending of the front part of the rod thanks to the damping device.
  • a second position allows walking when the abutment is removed.
  • the present invention aims to remedy this drawback by very simple means making it possible, during skiing, to stiffen the whole of the rod at the same time as to easily control the angle of advance of it.
  • this alpine ski boot comprising in particular a shell bottom, a rod mounted at least partially pivotable on the shell bottom around a horizontal and transverse axis, a stiffening element or spacer pivotally mounted at its lower end on the rear of the bottom of the hull around a horizontal and transverse axis located behind the pivot axis of the rod, means for ensuring in the skiing position a removable connection between the upper part of the element stiffening and the rear part of the rod, is characterized in that the stiffening element (7) consists of a rigid elongated piece, full or perforated with one or more openings (9) passing right through it the horizontal and transverse direction and in that the means ensuring the removable connection between the upper part of the rigid element and the rear part of the rod comprise on the one hand male and female members carried respectively by the two parts to be connected so as to engage one in the other, and on the other hand means for holding the rigid element pressed against the rod in the skiing practice position constituted by a strap or a tightening cable hooked to
  • the alpine ski boot which is shown in Figures 1 to 4, comprises a rigid shell bottom 1 and, at its upper part, a rod 2 surrounding the bottom of the leg of a skier.
  • the rod 2 is in one piece and it is constituted by a collar, the two anterior end portions 2a of which overlap each other, as can best be seen in FIG. 2.
  • This collar 2 is pivotally mounted, at its lower part, on the shell bottom 1, around a horizontal and transverse pivot axis materialized by pins 3.
  • the collar 2 carries, at its upper part, a device 4 for tightening the lower leg which comprises a clamping lever 5 and a clamping cable 6 hooked to this lever 5.
  • the clamping cable 6 almost completely surrounds the collar 2, as can be seen in FIG. 2, it is hooked to the one of its ends, to the clamping lever 5 and, at its other end, to the collar 2, at an anchoring point close to the closing lever 5.
  • the shoe comprises, at the rear, a stiffening element 7 which is constituted by an elongated rigid part.
  • This stiffening element 7 which is pivotally mounted, at its lower end, on the shell bottom 1, around a horizontal and transverse axis 8 located behind and at a lower level with respect to the pivot axis 3 of the collar 2 on the shell bottom 1.
  • This element of stiffening 7 has an outer face 7a, slightly convex towards the rear, and an inner face 7b, substantially flat, which is applied against the rear wall 2b of the collar 2 in the skiing position, as shown in FIG. 1
  • the stiffening element 7 can be full or alternatively, as shown in FIGS. 1 to 4, it can be perforated in the horizontal and transverse direction by presenting, in this case, one or more openings 9 passing through it. part by part.
  • the upper end 7c of the stiffening element 7 is preferably located just below an upper shoulder 11 provided on the rear wall 2b of the collar 2, so that the external face of this rear wall 2b is connected in a regular manner to the external face 7a of the stiffening element 7.
  • means are provided for ensuring a removable and lockable connection between the upper part of the stiffening element 7 and the rear part of the rod, in this case the collar 2.
  • These means comprise male 12,16 and female 13,17 members carried respectively by the two parts to be connected so as to engage one inside the other and means for holding the upper part of the stiffening element 7 pressed against the rod 2; 14.15 or to release it.
  • the stiffening element 7 carries, on the upper part of its inner face 7b, a finger 12 projecting forward.
  • This finger 12 forms a lock which is engaged in a hole 13 drilled in the rear wall 2b of the collar 2, a little below the shoulder 11.
  • the stiffening element 7 is kept in the active position, in which it is pressed against the rear wall 2b of the collar 2. It thus constitutes a spacer ensuring the stiffening of the collar 2 and forming a rigid support preventing any tilting of the collar 2 towards the rear.
  • the stiffening element 7 can be kept in the active position by independent fixing means or alternatively, which is preferable for reasons of convenience of use, under the action of the cable 6 for tightening the lower leg.
  • This cable can pass outside the stiffening element 7 or preferably, as shown in Figures 1 to 4, it can extend through the upper horizontal and transverse opening 9 of the stiffening element 7.
  • the relative positions of the locking finger 12 on the stiffening element 7 and of the hole 13 in the rear wall 2b determine the angular position, relative to the horizontal plane, which the collar 2 forming the rod automatically occupies during fitting, c 'is to say the initial advancement angle of this rod.
  • the stiffening element 7 is tightened against the collar 2, by the cable 6, the triangle, seen in elevation, formed by the two lower pivot axes 3 and 8 and the locking finger 12 is undeformable because that this finger is fitted tightly into the hole 13 of the collar 2 and therefore the stiffening element 7 and the collar 2 are forced to take a predetermined inclination relative to the horizontal, this inclination corresponding to the angle of predetermined stem advance.
  • the lower part of the stiffening element 7 can be extended, towards the front, by two lateral wings 7d covering the rear part of the bottom of the shell 1, just below the lower edge 2c of the collar 2, which reinforces the stiffening of the assembly.
  • the alpine ski boot comprises a rod made up of two parts engaged one inside the other, namely a front cuff 14 and a rear cover 15 which can pivot all the two around the common horizontal and transverse axis 3.
  • the upper and rear part of the rear cover 15 which has the shoulder 11 under which is housed the upper end 7c of the stiffening element 7
  • the locking of the stiffening element 7 and of the rear cover 15, in the skiing practice position is ensured by the engagement of a finger 16 provided on the rear wall 15a. of the rear cover 15, projecting towards the rear and engaging in a hollow or opposite hole 17 formed in the internal face 7b opposite the stiffening element 7.
  • the pivot axis Element 8 stiffening 7 is carried by a boss 18, forming a bearing, provided on the rear wall of the bottom of shell 1, substantially at the level of the pivot axis 3 of the rod but behind it.
  • this cover has, in the lower part of its rear wall 15a, a notch 15b, open downwards, opening out in the lower edge 15c of the cover 15.
  • This notch 15b extends on either side of the lower end portion 7e of the stiffening element 7 which is produced in the form of a yoke.
  • the two wings of this clevis 7e are arranged on either side of the boss 18, coming from molding with the rear wall of the bottom of the shell 1, and which constitutes the bearing for the horizontal and transverse pivot axis 8.
  • the depth (or height) of the notch 15b is chosen to be sufficient to allow a tilting of a sufficient angle of the cover 15 towards the rear as shown in FIG. 6.
  • the shoe shown in FIG. 8 is of the type comprising a collar 2 constituting the upper in one piece and which is provided, in its front part, with a device 19 for tightening the lower leg constituted by conventional tightening loops.
  • a device 19 for tightening the lower leg constituted by conventional tightening loops is obtained by means of an independent locking device 20, of any suitable type, making the upper part of the stiffening element 7 integral with the upper part. and posterior of the collar 2.
  • the stiffening element 7 has, in its external face 7a, a recess 21 in which is housed a lever 22 forming part of a device for tightening the instep.
  • the lever 22 is articulated on the stiffening element 7, around an axis horizontal and transverse 23, and to this lever 22 is attached an internal clamping cable 24 which penetrates inside the rod, through suitable openings.
  • This cable 24 passes over internal deflection elements 25 and it extends to a pressure distribution plate 26, extending above the instep and over which the cable passes. tightening 24.
  • the upper of the shoe is provided with means for tightening the lower leg 27, of any suitable type, which ensure the tightening of the front cuff 14 and the rear cover 15.
  • the lever 22 In the skiing practice position, as shown in FIG. 9, the lever 22 extends downward from its upper transverse articulation axis 23, along the bottom of the hollow 21, and the cable clamp 24 is tight. This tension of the cable 24 is transmitted, via the lever 22 and its axis 23, to the stiffening element 7 which is thus pressed against the rear wall 15a of the rear cover 15.
  • the locking in this position, is ensured by the engagement of a finger 16, provided in the upper part of the rear wall 15a of the cover 15, in a recess 17 provided in the upper part of the internal face 7b of the stiffening element 7.
  • the cable 24 relaxes so that the instep does not is more compressed by the pressure distribution plate 26 and the stiffening element 7 tilts partly back: the skier can then walk easily, the front cuff 14 and the rear cover 15 constituting the rod then being always tightened at the bottom skier's leg by the clamping device 27 but which can pivot as a whole around the axis 3.
  • the shoe shown in Figure 10 differs from that of Figure 9 in that the tightening lever 22 also controls the tightening of the lower leg.
  • the tightening cable 24 could be connected to means for holding the forefoot housed inside the front part of the bottom of the shell 1.
  • the cable or strap 6 for tightening the lower leg which passes through the upper opening 9 of the stiffening element 7, is secured to the 'one of its ends, of a mooring plate 29, which can slide, substantially horizontally, in a slot 31 formed in a side wall of the collar 2.
  • the length, that is to say the horizontal dimension, of the mooring plate 29 is a little lower than that of the light 31, so as to leave a backlash a between them in the clamping position.
  • the mooring plate 29 also carries, on its external surface, one or more anchoring studs 32 around one of which can hang the end of a cable 33 connected to the tightening strap 6 by via the lower leg tightening lever which does not appear in FIG. 11.
  • FIG. 12 represents a variant of the means limiting the tilting of the stiffening element 7 towards the rear.
  • the lower leg tightening strap 6 carries a transverse bar 34 which is crimped on the strap 6, at a distance a in front of a stop 35 provided on the side wall of the collar 2 when the lower leg is tight. Again, when the strap 6 is loosened, it can only move back a distance a , that is to say until the bar 34 comes into contact with the stop 35, which limits the tilting of the stiffening element 7 towards the rear.
  • the lower lateral wing 7d of the stiffening element 7 which extends in the space between the collar 2 and the bottom of the shell 1, carries, on its internal face , that is to say that which faces the bottom wall of the shell, a pin 36 which is engaged in a light 37 in the form of an arc of a circle centered on the axis 8, which is formed in the wall from the bottom of the shell 1 while being inclined from bottom to top and from front to back.
  • the displacement of the pin 36 in the slot 37, during the joint rearward tilting of the collar 2 and the stiffening element 7 after loosening the cable 6, positively controls the pivoting movement of the stiffening element 7 which is limited when the pin 36 comes into contact with the upper end of the light 37.
  • the shoe shown in FIGS. 14 and 15 comprises a sealing skirt 38 which is fixed, at its upper end 39, to the rear wall 2b of the collar 2 and which is disposed between the collar 2 and the stiffening element 7.
  • the skirt 38 is articulated, which can be obtained by providing a flexible zone of this skirt.
  • the sealing skirt 38 extends downward, at a certain distance from the rear wall 2b of the collar 2, delimiting a free space opposite the opening provided in the lower part of the rear wall 2b to allow the tilting of collar 2 backwards. In the skiing practice position, when the stiffening element 7 is pressed against the rear wall 2b of the collar 2, the skirt 38 is flattened against this rear wall and it thus contributes to sealing.
  • Figures 16 to 27 illustrate various alternative embodiments of means provided at the upper part of the stiffening element 7 to facilitate the guiding and the positioning of this stiffening element 7 in the active position, avoiding friction as much as possible. in this area between the facing pieces. These means also make it possible to obtain an easier release of the stiffening element 7 when the tensioning cable 6 is put off, keeping the stiffening element 7 against the rear wall 2b of the collar 2.
  • the upper end 7c of the stiffening element 7 forms a ramp inclined from the bottom up and from front to back and extending between the internal 7b and external 7a faces of the stiffening element 7. In the locking and stiffening position, this inclined ramp is placed under the shoulder 11 which also constitutes a ramp having the same inclination. Furthermore, to facilitate the positioning and disengagement of the stiffening element 7, the locking finger 12 has a rounded shape.
  • the internal face 7b of the stiffening element 7 carries, at its upper part, a blade 41 which successively comprises, from top to bottom, an upper part 41a constituting a ramp inclined from bottom to top and front to back, pressed against the upper end 7c, of the stiffening element 7, the locking finger 12 intended to engage in the hole 13, drilled in the rear wall 2b of the rod 2 and a lower part 41b forming a leaf spring.
  • This leaf spring 41b is curved in the direction of the rear wall 2b of the collar 2, so as to be crushed when the stiffening element 7 is put in place, in the active position, against the collar 2 and to relax, moving aside the stiffening element 7 of the collar 2, when this element 7 must tilt backwards.
  • FIG. 19 illustrates a reverse arrangement to that shown in FIGS. 17 and 18 and in this case it is the rear wall 2b of the rod 2 which carries the insert blade 41.
  • This blade 41 successively comprises from top to bottom, as in the previous case, the upper part 41a constituting the inclined ramp which is pressed against the shoulder 11, the locking finger 16, projecting rearward, which is intended to engage in the recess 17 of the element stiffening 7, and a lower part 41b curved outwards and forming a leaf spring.
  • the stiffening element 7 carries, on its internal face 7b, two independent blades, namely an upper blade 42 constituting a ramp 42a inclined from bottom to top and from front to back and the locking finger 12, and a lower blade 43 forming the spring leaf to push the stiffening element back.
  • the two independent blades 42 and 43 could be carried by the rear wall 2b of the rod 2, as in the case of the variant illustrated in FIG. 19.
  • the locking finger 12 intended to be introduced into the hole 13, of the rear wall 2b of the rod 2, is constituted by a movable element urged elastically towards the rear. which is carried by the upper part of the stiffening element 7. More particularly the locking finger 12 is movably mounted passing through the internal face 7b of the stiffening element 7 and opening into the upper opening 9. In this opening is finds a support plate 45 forming a single piece with the locking finger 12 and over which passes the clamping cable 6. This plate 45 and therefore the locking finger 12 are pushed backwards, towards the inside of the opening 9, by a spring 46 bearing on the wall of the stiffening element 7 facing the surface of the shoulder formed by the support plate.
  • FIG. 23 shows an alternative embodiment in which the internal face 7b of the stiffening element 7 carries, at its upper part, a spring leaf 47.
  • This spring leaf 47 is fixed, at its lower part, to the element 7, it extends along the internal face 7b and it carries the finger locking device 12.
  • the upper part of the spring leaf 47 is arched so as to be inclined from bottom to top and from front to back, at a certain distance from the upper end of the stiffening element 7. Consequently the upper part of the spring leaf 47 is elastically deformed, being applied against the inclined ramp 7c, when the stiffening element is put in place, as a result of the tightening of the cable 6, and it can relax during loosening of the cable, spreading the stiffening element 7 from the collar 2.
  • the spring leaf 47 could be carried by the rear wall 2b of the rod 2, in the same way as the leaf 41 shown in FIG. 19.
  • the leaf 47 would carry a locking finger similar to the finger 16 , projecting towards the rear and intended to engage in a hollow 17 of the stiffening element 7.
  • the rear wall 2b of the collar 2 carries a locking finger 16 projecting towards the rear and which can engage in a recess 17 provided in the internal face 7b of the stiffening element 7.
  • the locking finger 16 is hollowed out of a blind hole 48 in which is housed a movable piston 49 biased axially outwards by a spring 51 and normally projecting out of the hole 48 when the spring 51 is relaxed.
  • FIG. 26 A reverse arrangement to that shown in Figures 24 and 25 could also be adopted, as shown in Figure 26.
  • the rear wall 2b of the rod 2 is hollowed out with a blind hole 13 and the finger locking 12, carried by the front wall 7b of the stiffening element 7, is also hollowed out with a blind hole 48 in which is housed a movable piston 49 pushed forward by a spring 51.
  • FIG. 27 represents a variant in which a compression spring 52 is disposed between the external front face of the locking finger 16, then full, and the bottom of the hollow 17. This spring 52 pushes back, by relaxing, the stiffening element 7, when the cable 6 is loose.
  • the arrangement shown in FIG. 27 could also be used with a locking finger 12 carried by the front wall 7b of the stiffening element 7 and engaging in a blind hole 13 provided in the rear wall 2b of the rod 2, the compression spring 52 then being disposed between the bottom of the blind hole 13 and the locking finger 12.
  • This bending is obtained by allowing a slight downward movement (front bending) or upward (rear bending) of the locking finger 12 in the hole 13 of the rod receiving it, this displacement then resulting from the deformation of the triangle 3,8,12 whose two lower vertices 3,8 are fixed and the upper vertex 12 is only mobile.
  • the rear wall 2b of the collar 2 carries, below the hole 13 in which is engaged the locking pin 12 carried by the stiffening element 7, a disc 53 making it possible to adjust the amount of forward flexion of the rod.
  • This adjustment disc 53 is rotatably mounted on the rear wall 2b, around a horizontal and longitudinal axis 54 and the upper part of its edge 53a delimits the hole 13 downwards.
  • the adjustment disc 53 has at least one notch 55 opening into its edge 53a, in part of its periphery. Consequently, if the adjustment disc 53 is in the position shown in FIGS.
  • the edge 53a of the adjustment disc 53 is located a short distance below the locking finger 12, which consequently limits the possible relative movement of this finger downward and therefore the forward bending of the rod is minimal.
  • the adjusting disc 53 is rotated by 180 °, so as to bring the notch 55 below the locking finger 12, this finger can then move a greater distance downwards, which allows d '' obtain maximum forward bending of the rod.
  • the edge 53a of the adjustment disc 53 could form a progressive cam, which would make it possible to continuously adjust the amplitude of the forward bending of the rod.
  • the stiffening element 7 carries a locking finger 12 which has a cylindrical shape, of semi-circular cross section, and which is formed on half of the front face of a circular cylindrical pin 56 rotatably mounted on the stiffening element 7, around its horizontal and longitudinal axis.
  • the diameter of the locking finger 12 is equal to the height of a hole 13 in the rear wall 2b of the rod 2, for example having a square cross section. Consequently, it is possible to adjust the amplitude of the forward bending of the rod by rotating the pin 56 and consequently the finger 12 around their axis of rotation.
  • the locking finger 12 In the position shown in Figures 30 and 31A, the locking finger 12 is in the upper horizontal position, in defining, for the finger 12, a possible race 1 down equal to the radius of the circle of the cross section. This position corresponds to obtaining maximum forward bending for the rod. If the pin 56 and the finger 12 are rotated 90 °, to bring the finger 12 to the vertical position as shown in FIG. 31B, this finger 12 prevents any possibility of bending of the rod. Finally if it is rotated 180 ° relative to the initial position shown in Figure 31A to bring it into the position shown in Figure 31C, that is to say in the lower position in the hole 13, the finger 12 can move upwards by the distance a 1 and one then obtains a possibility of bending in rear support of the rod.
  • Figures 32 and 33 show an alternative embodiment in which the stiffening element 7 carries a locking finger 12 engaged in an oblong hole 13, elongated in the vertical direction, and formed in the rear wall 2b of the collar 2.
  • a member for adjusting the amplitude of the front bending of the rod which is constituted by a drawer 57 in the upper edge 58 of which are formed a or several neighboring vertical notches 59,61, of different depths, which open into the upper edge 58. If the drawer 57 is placed in its extreme right position in FIG.
  • FIGS. 32 and 33 could be mounted so as to control the amplitude of the rear bending of the rod. It would suffice, for this, to place the drawer 57, with its notches 59 and 61 open downwards, above the adjusting finger 12 and to make sure that the hole 13 is elongated upwards.
  • FIG. 34 represents an embodiment in which the stiffening element 7 carries a locking finger 12 which is mounted vertically movable relative to the stiffening element 7. For this purpose it is pierced with a tapped hole of so as to constitute a nut engaged on a vertical screw 62 rotatably mounted on the upper part of the stiffening element 7 and secured to an adjustment wheel 63. Consequently it is possible, by turning the screw 62 more or less by action on the adjusting wheel 63, move the locking finger 12 up or down and consequently adjust the advance of the rod.
  • the stiffening element 7 carries a locking finger 12 which is intended to engage in a hole 13 which is formed in an insert 64 mounted vertically adjustable on the rear wall 2b of the collar 2.
  • This part 64 can be constituted, for example, by a nut in which is engaged a vertical screw mounted for rotation on the rear wall 2b and secured to an adjustment wheel.
  • the stiffening element 7 carries a locking finger 12 which is integral with a notched base 65 whose notches 66 cooperate with similar notches 67 carried by the upper part of the internal face 7b of the element of stiffening 7.
  • the notched base 65 and the locking finger 12 can thus be mounted and fixed in one of the different vertical positions possible on the upper part of the stiffening element 7, which makes it possible to vary the advance of the stem.
  • the base 65 which carries the locking finger 12 advantageously forms a single piece with an upper inclined guide ramp 68. This guide ramp facilitates the positioning of the stiffening element 7 against the collar 2 and its release when loosening the cable 6.
  • the upper of the shoe is constituted by a collar 2 which pivots on the bottom of the shell 1 around a horizontal and transverse axis materialized by the pins 3.
  • the collar 2 is devoid, over the greater part of its height, from its rear wall and only an upper transverse tongue 2d remains, connecting the two lateral parts 2e of the collar 2 pivoting on the studs 3.
  • the stiffening element 7 is an integral part of a independent rear stiffening cover 71 which is articulated, at its lower end, on the shell bottom 1, around the horizontal and transverse axis 8.
  • the rear stiffening cover 71 comprises a rear wall 71a which may be planar or, as it is represented in FIG. 38, curve with concavity turned towards the rear.
  • Tie rods 72 extend between the rear wall 71 a of the rear stiffening cover 71 and the stiffening element 7.
  • This rear wall 71a is extended, towards the front, on each side, by two upper lateral parts 71b and lower 71c, the front edges 71d of which have a shape complementary to that of the rear edges of the two lateral parts 2e of the collar 2.
  • the front edges 71d of the rear stiffening cover 71 are in contact, in the closed position of the boot, with the rear edges of the two lateral sides 2e of the collar 2 whose profile they match.
  • Each upper side part 71b may extend further forward than the lower side part 71c as shown in FIG. 38.
  • the reverse arrangement could also be adopted and one could even provide upper parts 71b and lower 71c aligned vertically, that is to say with their front edges located in the extension of one another.
  • the shoe could include the upper 71b and lower 71c parts of the rear stiffening cover 71 only on its internal face, that is to say that facing the other shoe.
  • the cable 6 of the lower leg clamping device passes through the upper opening defined between the upper tie 72 and the end part upper of the stiffening element 7. It also passes through an eyelet 73 formed in each upper lateral part 71b of the rear stiffening cover 71.

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  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The present invention relates to an alpine ski boot, comprising a lower shell part (1) and an upper (2; 14, 15) mounted pivotably on the lower shell part about a horizontal and transverse spindle. This boot is characterised in that it comprises an element (7) for stiffening the upper which is mounted so as to pivot, at its lower end, on the rear of the lower shell part (1), about a horizontal and transverse spindle (8) located at the rear of the pivoting spindle (3) of the upper (2), and means (12, 13) for providing, when in a skiing position, a removable link between the upper part of the stiffening element (7) and the rear part of the upper (2). <IMAGE>

Description

La présente invention concerne une chaussure de ski alpin, comportant un bas de coque sur la partie postérieure duquel est montée pivotante, autour d'un axe horizontal et transversal, la partie arrière de la tige de la chaussure.The present invention relates to an alpine ski boot, comprising a shell bottom on the rear part of which is pivotally mounted, around a horizontal and transverse axis, the rear part of the upper of the boot.

Les chaussures de ski alpin à tige pivotante offrent l'avantage, par rapport aux chaussures utilisées antérieurement, à tige formant une seule pièce avec le bas de la chaussure, de pouvoir suivre les mouvements de flexion vers l'avant et vers l'arrière du bas de jambe du skieur, pendant la marche et la pratique du ski et que cette tige peut basculer vers l'arrière, totalement ou partiellement, pour faciliter le chaussage et le déchaussage. Certaines chaussures connues de ce type sont par ailleurs pourvues de dispositifs de verrouillage qui permettent de bloquer la tige par rapport au bas de coque dans une position donnée telle que le bas de jambe du skieur, lorsqu'il chausse sa chaussure, soit incliné vers l'avant par rapport au plan horizontal. Dans cette position inclinée vers l'avant, qui convient pour la pratique du ski, la tige fait, avec le plan horizontal, un angle dit "d'avancée initiale". Les dispositifs de verrouillage de "l'avancée" de la tige qui sont connus actuellement, par exemple ceux décrits dans les brevets européens EP-B1-0 134 595 et EP-B1-0 086 908, sont montés à la partie inférieure et postérieure de la tige. Ils comportent deux parties fixées respectivement sur la tige de la chaussure et sur le bas de coque, ces deux parties étant assujetties l'une à l'autre dans une première position, pour le blocage de la tige en position "d'avancée" par rapport au bas de coque, et dans une seconde position pour le déblocage de la tige par rapport au bas de coque, ce qui facilite alors la marche avec la chaussure de ski lorsque la tige est maintenue serrée sur le bas de jambe.Alpine ski boots with pivoting rod offer the advantage, compared to the boots used previously, with a rod forming a single piece with the bottom of the boot, of being able to follow the bending movements forward and backward. lower leg of the skier, during walking and skiing and that this rod can tilt backwards, totally or partially, to facilitate putting on and taking off. Certain known boots of this type are moreover provided with locking devices which make it possible to block the upper relative to the bottom of the shell in a given position such that the lower leg of the skier, when he is putting on his boot, is inclined towards the forward with respect to the horizontal plane. In this forward inclined position, which is suitable for skiing, the rod makes, with the horizontal plane, an angle called "initial advance". The locking devices for "advancing" the rod which are currently known, for example those described in European patents EP-B1-0 134 595 and EP-B1-0 086 908, are mounted on the lower and rear part of the stem. They comprise two parts fixed respectively to the upper of the shoe and to the bottom of the shell, these two parts being secured to each other in a first position, for blocking the upper in the "forward" position by relative to the bottom of the shell, and in a second position for unlocking the rod relative to the bottom of the shell, which then facilitates walking with the ski boot when the rod is held tight on the lower leg.

Le document EP-A-242 526 décrit un dispositif de liaison d'une tige par rapport à une coque de chaussure. Ce dispositif est un mécanisme à genouillère à deux positions, la première dite "position de fermeture" où la tige est maintenue avec une certaine flexion élastique vers l'avant pour permettre la pratique du ski, la seconde dite "position d'ouverture" où l'articulation de la tige sur la coque se fait sur une plage suffisamment grande pour permettre la marche.Document EP-A-242 526 describes a device for connecting a rod with respect to a shoe shell. This device is a two-position toggle mechanism, the first known as the "closed position" where the rod is held with a certain elastic bending towards the front to allow skiing, the second known as the "open position" where the articulation of the rod on the shell is made over a sufficiently large range to allow walking.

Le document EP-A-232 218 décrit une chaussure qui comporte notamment une coque, une tige en deux parties, un dispositif d'amortissement entre les deux parties de la tige et un mécanisme d'action sur la position relative de la coque et de la tige. Une première position permet la pratique du ski par un maintien en butée vers l'avant de la partie arrière de la tige, maintien combiné à une flexion élastique de la partie avant de la tige grâce au dispositif d'amortissement. Une seconde position permet la marche lorsque le maintien en butée est supprimé.Document EP-A-232 218 describes a shoe which comprises in particular a shell, a two-part upper, a damping device between the two parts of the upper and a mechanism for acting on the relative position of the shell and the stem. A first position allows skiing to be practiced by holding the rear part of the rod towards the front, which is combined with elastic bending of the front part of the rod thanks to the damping device. A second position allows walking when the abutment is removed.

On connaît également, ainsi qu'il est décrit dans la demande de brevet internationale WO-89/04615, un dispositif réglable et déverrouillable de contrôle de la flexion et de l'angle d'avancée de la tige par rapport au bas de coque.Also known, as described in international patent application WO-89/04615, an adjustable and unlockable device for controlling the bending and the angle of advance of the rod relative to the bottom of the shell.

Tous ces dispositifs connus, s'ils permettent effectivement de verrouiller "l'avancée" de la tige par rapport au bas de coque et éventuellement de contrôler la flexion avant et/ou arrière de cette tige, ne se sont toutefois pas révélés totalement satisfaisants du fait que leur action sur la tige se trouve être limitée à la partie inférieure de celle-ci et qu'il existe par conséquent une discontinuité dans la tenue du bas de la jambe du skieur entre la partie inférieure de la tige et sa partie supérieure.All of these known devices, if they effectively make it possible to lock the "advance" of the rod relative to the bottom of the shell and possibly to control the front and / or rear bending of this rod, have not however proved to be completely satisfactory from the fact that their action on the rod is limited to the lower part thereof and that there is therefore a discontinuity in the holding of the bottom of the skier's leg between the lower part of the rod and its upper part.

La présente invention vise à remédier à cet inconvénient grâce à des moyens très simples permettant d'obtenir, pendant la pratique du ski, une rigidification de l'ensemble de la tige en même temps qu'un contrôle aisé de l'angle d'avancée de celle-ci.The present invention aims to remedy this drawback by very simple means making it possible, during skiing, to stiffen the whole of the rod at the same time as to easily control the angle of advance of it.

A cet effet, cette chaussure de ski alpin comportant notamment un bas de coque, une tige montée au moins partiellement pivotante sur le bas de coque autour d'un axe horizontal et transversal, un élément de rigidification ou entretoise monté à pivotement à son extrémité inférieure sur l'arrière du bas de coque autour d'un axe horizontal et transversal situé en arrière de l'axe de pivotement de la tige, des moyens pour assurer en position de pratique du ski une liaison amovible entre la partie supérieure de l'élément de rigidification et la partie postérieure de la tige, est caractérisée en ce que l'élément de rigidification (7) est constitué par une pièce rigide allongée, pleine ou ajourée d'une ou plusieurs ouvertures (9) le traversant de part en part dans le sens horizontal et transversal et en ce que les moyens assurant la liaison amovible entre la partie supérieure de l'élément rigide et la partie postérieure de la tige comprennent d'une part des organes mâle et femelle portés respectivement par les deux parties à relier de manière à s'engager l'un dans l'autre, et d'autre part des moyens pour maintenir l'élément rigide plaqué contre la tige en position de pratique du ski constitués par une sangle ou un câble de serrage accroché à un levier de serrage et faisant partie d'un dispositif de serrage du bas de jambe, ce câble de serrage passant à l'extérieur de l'élément rigide ou à travers une ouverture formée dans cet élément.To this end, this alpine ski boot comprising in particular a shell bottom, a rod mounted at least partially pivotable on the shell bottom around a horizontal and transverse axis, a stiffening element or spacer pivotally mounted at its lower end on the rear of the bottom of the hull around a horizontal and transverse axis located behind the pivot axis of the rod, means for ensuring in the skiing position a removable connection between the upper part of the element stiffening and the rear part of the rod, is characterized in that the stiffening element (7) consists of a rigid elongated piece, full or perforated with one or more openings (9) passing right through it the horizontal and transverse direction and in that the means ensuring the removable connection between the upper part of the rigid element and the rear part of the rod comprise on the one hand male and female members carried respectively by the two parts to be connected so as to engage one in the other, and on the other hand means for holding the rigid element pressed against the rod in the skiing practice position constituted by a strap or a tightening cable hooked to a tightening lever and forming part of a device for tightening of the lower leg, this tightening cable passing outside the rigid element or through an opening formed in this element.

On décrira ci-après, à titre d'exemples non limitatifs, diverses formes d'exécution de la présente invention, en référence au dessin annexé sur lequel :

  • La figure 1 est une vue en élévation, avec arrachement partiel, d'une chaussure de ski alpin du type à entrée arrière et/ou centrale suivant l'invention, à collier pivotant, en position de pratique du ski.
  • La figure 2 est une vue en coupe faite suivant la ligne II-II de la figure 1.
  • La figure 3 est une vue en élévation, avec arrachement partiel, de la chaussure de la figure 1, en position de chaussage/déchaussage ou de marche.
  • La figure 4 est une vue en perspective, prise de l'arrière, de la chaussure représentée sur la figure 1.
  • La figure 5 est une vue en élévation d'une chaussure de ski alpin du type à entrée arrière et/ou centrale dont la tige est constituée en deux parties, en position de pratique du ski.
  • La figure 6 est une vue en élévation de la chaussure de ski alpin de la figure 5, en position de chaussage/déchaussage.
  • La figure 7 est une vue de la partie inférieure et postérieure de la chaussure, prise de la gauche sur la figure 5.
  • La figure 8 est une vue en élévation schématique d'une variante d'exécution de la chaussure.
  • Les figures 9 et 10 sont des vues en élévation de variantes d'exécution de la chaussure dans lesquelles l'élément de rigidification porte un levier de serrage.
  • La figure 11 est une vue en élévation partielle d'une variante d'exécution de la chaussure pourvue de moyens permettant un basculement d'amplitude limitée, vers l'arrière, de l'élément de rigidification.
  • La figure 12 est une vue en élévation partielle d'une variante des moyens limitant le basculement vers l'arrière de l'élément de rigidification.
  • La figure 13 est une vue en élévation partielle d'une autre variante d'exécution de la chaussure.
  • La figure 14 est une vue en élévation partielle d'une autre variante d'exécution de la chaussure.
  • La figure 15 est une vue en perspective, prise de l'arrière, de la chaussure représentée sur la figure 14.
  • Les figures 16 à 27 sont des vues en coupe verticale et longitudinale de diverses variantes d'exécution de la partie extrême supérieure de l'élément de rigidification et de la partie supérieure en regard de la tige.
  • La figure 28 est une vue en coupe verticale et longitudinale de la partie postérieure et supérieure de la tige pourvue d'un dispositif de réglage de l'amplitude de la flexion avant de la tige.
  • La figure 29 est une vue en coupe verticale faite suivant la ligne XXIX-XXIX de la figure 28.
  • La figure 30 est une vue en coupe verticale et longitudinale de la partie supérieure et postérieure de la tige pourvue d'une variante d'exécution d'un dispositif de réglage de l'amplitude de la flexion avant de la tige.
  • Les figures 30A,30B et 30C sont des vues en coupe verticale faite suivant la ligne XXXI-XXXI de la figure 30, dans le cas de diverses positions du doigt de verrouillage limitant l'amplitude de la flexion de la tige.
  • La figure 32 est une vue en coupe verticale et longitudinale partielle d'une autre variante d'exécution d'un dispositif de réglage de l'amplitude de la flexion avant de la tige.
  • La figure 33 est une vue en coupe verticale faite suivant la ligne XXXIII-XXXIII de la figure 32.
  • Les figures 34,35 et 36 sont des vues en coupe verticale et longitudinale de la partie supérieure et postérieure de la tige pourvue de différents dispositifs de réglage de "l'avancée" de la tige.
  • La figure 37 est une vue en perspective de l'embase portant un doigt de verrouillage du dispositif représenté sur la figure 36.
  • La figure 38 est une vue en élévation, partiellement en coupe verticale, d'une autre variante d'exécution.
Various embodiments of the present invention will be described below, by way of nonlimiting examples, with reference to the appended drawing in which:
  • Figure 1 is an elevational view, partially broken away, of an alpine ski boot of the rear and / or central entry type according to the invention, with a swivel collar, in the ski practice position.
  • Figure 2 is a sectional view taken along line II-II of Figure 1.
  • Figure 3 is an elevational view, partially broken away, of the shoe of Figure 1, in the shoeing / heaving or walking position.
  • FIG. 4 is a perspective view, taken from the rear, of the shoe shown in FIG. 1.
  • FIG. 5 is an elevation view of an alpine ski boot of the rear and / or central entry type, the upper of which is made up of two parts, in the ski practice position.
  • Figure 6 is an elevational view of the alpine ski boot of Figure 5, in the boot / shoeing position.
  • FIG. 7 is a view of the lower and rear part of the shoe, taken from the left in FIG. 5.
  • Figure 8 is a schematic elevational view of an alternative embodiment of the shoe.
  • Figures 9 and 10 are elevational views of alternative embodiments of the shoe in which the stiffening element carries a clamping lever.
  • Figure 11 is a partial elevational view of an alternative embodiment of the shoe provided with means for tilting of limited amplitude, towards the rear, of the stiffening element.
  • Figure 12 is a partial elevational view of a variant of the means limiting the rearward tilting of the stiffening element.
  • Figure 13 is a partial elevational view of another alternative embodiment of the shoe.
  • Figure 14 is a partial elevational view of another alternative embodiment of the shoe.
  • FIG. 15 is a perspective view, taken from the rear, of the shoe shown in FIG. 14.
  • Figures 16 to 27 are views in vertical and longitudinal section of various alternative embodiments of the upper end part of the stiffening element and the upper part facing the rod.
  • Figure 28 is a vertical and longitudinal sectional view of the rear and upper part of the rod provided with a device for adjusting the amplitude of the front bending of the rod.
  • Figure 29 is a vertical sectional view taken along line XXIX-XXIX of Figure 28.
  • Figure 30 is a vertical and longitudinal sectional view of the upper and rear part of the rod provided with an alternative embodiment of a device for adjusting the amplitude of the front bending of the rod.
  • Figures 30A, 30B and 30C are vertical section views taken along the line XXXI-XXXI of Figure 30, in the case of various positions of the locking finger limiting the amplitude of the bending of the rod.
  • Figure 32 is a partial vertical and longitudinal sectional view of another alternative embodiment of a device for adjusting the amplitude of the forward bending of the rod.
  • Figure 33 is a vertical sectional view taken along the line XXXIII-XXXIII of Figure 32.
  • Figures 34,35 and 36 are views in vertical and longitudinal section of the upper and rear part of the rod provided with various devices for adjusting the "advance" of the rod.
  • FIG. 37 is a perspective view of the base carrying a locking finger of the device shown in FIG. 36.
  • Figure 38 is an elevational view, partially in vertical section, of another alternative embodiment.

La chaussure de ski alpin suivant l'invention qui est représentée sur les figures 1 à 4, comprend un bas de coque rigide 1 et, à sa partie supérieure, une tige 2 entourant le bas de la jambe d'un skieur. Dans cette forme d'exécution la tige 2 est d'une seule pièce et elle est constituée par un collier dont les deux parties extrêmes antérieures 2a se chevauchent l'une l'autre, comme on peut mieux le voir sur la figure 2. Ce collier 2 est monté pivotant, à sa partie inférieure, sur le bas de coque 1, autour d'un axe de pivotement horizontal et transversal matérialisé par des tétons 3. Le collier 2 porte, à sa partie supérieure, un dispositif 4 de serrage du bas de jambe lequel comprend un lever de serrage 5 et un câble de serrage 6 accroché à ce levier 5. Le câble de serrage 6 entoure presque complètement le collier 2, comme on peut le voir sur la figure 2, il est accroché, à l'une de ses extrémités, au levier de serrage 5 et, à son autre extrémité, au collier 2, en un point d'ancrage voisin du levier de fermeture 5.The alpine ski boot according to the invention which is shown in Figures 1 to 4, comprises a rigid shell bottom 1 and, at its upper part, a rod 2 surrounding the bottom of the leg of a skier. In this embodiment, the rod 2 is in one piece and it is constituted by a collar, the two anterior end portions 2a of which overlap each other, as can best be seen in FIG. 2. This collar 2 is pivotally mounted, at its lower part, on the shell bottom 1, around a horizontal and transverse pivot axis materialized by pins 3. The collar 2 carries, at its upper part, a device 4 for tightening the lower leg which comprises a clamping lever 5 and a clamping cable 6 hooked to this lever 5. The clamping cable 6 almost completely surrounds the collar 2, as can be seen in FIG. 2, it is hooked to the one of its ends, to the clamping lever 5 and, at its other end, to the collar 2, at an anchoring point close to the closing lever 5.

Suivant l'invention la chaussure comprend, à l'arrière, un élément de rigidification 7 qui est constitué par une pièce rigide allongée. Cet élément de rigidification 7 qui est monté à pivotement, à son extrémité inférieure, sur le bas de coque 1, autour d'un axe horizontal et transversal 8 situé en arrière et à un niveau inférieur par rapport à l'axe de pivotement 3 du collier 2 sur le bas de coque 1. Cet élément de rigidification 7 présente une face externe 7a, légèrement convexe vers l'arrière, et une face interne 7b, sensiblement plane, qui est appliquée contre la paroi postérieure 2b du collier 2 en position de pratique du ski, comme il est représenté sur la figure 1. L'élément de rigidification 7 peut être plein ou bien encore, comme il est représenté sur les figures 1 à 4, il peut être ajouré dans le sens horizontal et transversal en présentant, dans ce cas, une ou plusieurs ouvertures 9 le traversant de part en part.According to the invention, the shoe comprises, at the rear, a stiffening element 7 which is constituted by an elongated rigid part. This stiffening element 7 which is pivotally mounted, at its lower end, on the shell bottom 1, around a horizontal and transverse axis 8 located behind and at a lower level with respect to the pivot axis 3 of the collar 2 on the shell bottom 1. This element of stiffening 7 has an outer face 7a, slightly convex towards the rear, and an inner face 7b, substantially flat, which is applied against the rear wall 2b of the collar 2 in the skiing position, as shown in FIG. 1 The stiffening element 7 can be full or alternatively, as shown in FIGS. 1 to 4, it can be perforated in the horizontal and transverse direction by presenting, in this case, one or more openings 9 passing through it. part by part.

En position de pratique du ski (figures 1 et 2), l'extrémité supérieure 7c de l'élément de rigidification 7 est située, de préférence, juste en dessous d'un épaulement supérieur 11 prévu sur la paroi postérieure 2b du collier 2, de manière que la face externe de cette paroi postérieure 2b se raccorde d'une manière régulière à la face externe 7a de l'élément de rigidification 7. Par ailleurs, des moyens sont prévus pour assurer une liaison amovible et verrouillable entre la partie supérieure de l'élément de rigidification 7 et la partie postérieure de la tige, en l'occurrence du collier 2. Ces moyens comprennent des organes mâle 12,16 et femelle 13,17 portés respectivement par les deux parties à relier de manière à s'engager l'un dans l'autre et des moyens pour maintenir la partie supérieure de l'élément de rigidification 7 plaquée contre la tige 2; 14,15 ou pour la libérer. Dans la forme d'exécution sur les figures 1 à 4 l'élément de rigidification 7 porte, sur la partie supérieure de sa face interne 7b, un doigt 12 en saillie vers l'avant. Ce doigt 12 forme un verrou qui est engagé dans un trou 13 percé dans la paroi postérieure 2b du collier 2, un peu en dessous de l'épaulement 11. Lorsque la chaussure est en position de pratique du ski, l'élément de rigidification 7 est maintenu en position active, dans laquelle il est plaqué contre la paroi postérieure 2b du collier 2. Il constitue ainsi une entretoise assurant la rigidification du collier 2 et formant un appui rigide empêchant tout basculement du collier 2 vers l'arrière. L'élément de rigidification 7 peut être maintenu en position active par des moyens de fixation indépendants ou bien encore, ce qui est préférable pour des raisons de commodité d'usage, sous l'action du câble 6 de serrage du bas de jambe. Ce câble de serrage peut passer à l'extérieur de l'élément de rigidification 7 ou de préférence, comme il est représenté sur les figures 1 à 4, il peut s'étendre à travers l'ouverture horizontale et transversale supérieure 9 de l'élément de rigidification 7.In the skiing practice position (FIGS. 1 and 2), the upper end 7c of the stiffening element 7 is preferably located just below an upper shoulder 11 provided on the rear wall 2b of the collar 2, so that the external face of this rear wall 2b is connected in a regular manner to the external face 7a of the stiffening element 7. Furthermore, means are provided for ensuring a removable and lockable connection between the upper part of the stiffening element 7 and the rear part of the rod, in this case the collar 2. These means comprise male 12,16 and female 13,17 members carried respectively by the two parts to be connected so as to engage one inside the other and means for holding the upper part of the stiffening element 7 pressed against the rod 2; 14.15 or to release it. In the embodiment in Figures 1 to 4 the stiffening element 7 carries, on the upper part of its inner face 7b, a finger 12 projecting forward. This finger 12 forms a lock which is engaged in a hole 13 drilled in the rear wall 2b of the collar 2, a little below the shoulder 11. When the boot is in the skiing practice position, the stiffening element 7 is kept in the active position, in which it is pressed against the rear wall 2b of the collar 2. It thus constitutes a spacer ensuring the stiffening of the collar 2 and forming a rigid support preventing any tilting of the collar 2 towards the rear. The stiffening element 7 can be kept in the active position by independent fixing means or alternatively, which is preferable for reasons of convenience of use, under the action of the cable 6 for tightening the lower leg. This cable can pass outside the stiffening element 7 or preferably, as shown in Figures 1 to 4, it can extend through the upper horizontal and transverse opening 9 of the stiffening element 7.

Les positions relatives du doigt de verrouillage 12 sur l'élément de rigidification 7 et du trou 13 de la paroi postérieure 2b déterminent la position angulaire, par rapport au plan horizontal, que vient occuper automatiquement le collier 2 formant la tige lors du chaussage, c'est-à-dire l'angle d'avancée initiale de cette tige. En effet, lorsque l'élément de rigidification 7 est serré contre le collier 2, par le câble 6, le triangle, vu en élévation, formé par les deux axes de pivotement inférieurs 3 et 8 et le doigt de verrouillage 12 est indéformable du fait que ce doigt est emboîté étroitement dans le trou 13 du collier 2 et de ce fait l'élément de rigidification 7 et le collier 2 sont obligés de prendre une inclinaison prédéterminée par rapport à l'horizontale, cette inclinaison correspondant à l'angle d'avancée prédéterminé de la tige.The relative positions of the locking finger 12 on the stiffening element 7 and of the hole 13 in the rear wall 2b determine the angular position, relative to the horizontal plane, which the collar 2 forming the rod automatically occupies during fitting, c 'is to say the initial advancement angle of this rod. Indeed, when the stiffening element 7 is tightened against the collar 2, by the cable 6, the triangle, seen in elevation, formed by the two lower pivot axes 3 and 8 and the locking finger 12 is undeformable because that this finger is fitted tightly into the hole 13 of the collar 2 and therefore the stiffening element 7 and the collar 2 are forced to take a predetermined inclination relative to the horizontal, this inclination corresponding to the angle of predetermined stem advance.

Lorsque le skieur veut déchausser ou marcher confortablement, il ouvre le levier 5 de serrage du bas de jambe, ce qui provoque le desserrage du câble 6. De ce fait l'élément de rigidification 7, alors libéré, peut basculer vers l'arrière, dans le sens inverse des aiguilles d'une montre, autour de l'axe 8. Le doigt de verrouillage 12 sort alors du trou 13 du collier 2 de manière à libérer ce collier qui peut à son tour basculer vers l'arrière autour de l'axe 3. Lorsque l'élément de rigidification 7 et le collier 2 sont basculés vers l'arrière, en position de chaussage/déchaussage ou de marche, comme il est représenté sur la figure 3, le doigt de verrouillage 12 se trouve alors situé au-dessus du trou 13 et un peu en dessous de l'épaulement 11.When the skier wants to take off or walk comfortably, he opens the lower leg tightening lever 5, which loosens the cable 6. Therefore the stiffening element 7, then released, can swing backwards, anti-clockwise, around the axis 8. The locking finger 12 then comes out of the hole 13 of the collar 2 so as to release this collar which can at its turn tilt back around the axis 3. When the stiffening element 7 and the collar 2 are tilted back, in the shoeing / heaving or walking position, as shown in FIG. 3, the locking finger 12 is then located above the hole 13 and a little below the shoulder 11.

Comme il est représenté sur les figures 1,3 et 4 la partie inférieure de l'élément de rigidification 7 peut être prolongée, vers l'avant, par deux ailes latérales 7d coiffant la partie postérieure du bas de coque 1, juste en dessous du bord inférieur 2c du collier 2, ce qui renforce la rigidification de l'ensemble.As shown in FIGS. 1, 3 and 4, the lower part of the stiffening element 7 can be extended, towards the front, by two lateral wings 7d covering the rear part of the bottom of the shell 1, just below the lower edge 2c of the collar 2, which reinforces the stiffening of the assembly.

Dans la variante d'exécution représentée sur les figures 5 et 6 la chaussure de ski alpin comporte une tige constituée de deux parties engagées l'une dans l'autre, à savoir une manchette avant 14 et un capot arrière 15 qui peuvent pivoter tous les deux autour de l'axe horizontal et transversal commun 3. Dans ce cas c'est la partie supérieure et postérieure du capot postérieur 15 qui présente l'épaulement 11 sous lequel vient se loger l'extrémité supérieure 7c de l'élément de rigidification 7. Par ailleurs, dans cette variante d'exécution, le verrouillage de l'élément de rigidification 7 et du capot postérieur 15, en position de pratique du ski, est assuré par l'engagement d'un doigt 16 prévu sur la paroi postérieure 15a du capot postérieur 15, en saillie vers l'arrière et s'engageant dans un creux ou trou en regard 17 formé dans la face interne 7b en regard de l'élément de rigidification 7. Il est à noter également que l'axe de pivotement 8 de l'élément de rigidification 7 est porté par un bossage 18, formant palier, prévu sur la paroi postérieure du bas de coque 1, sensiblement au niveau de l'axe de pivotement 3 de la tige mais en arrière de celui-ci.In the variant shown in FIGS. 5 and 6, the alpine ski boot comprises a rod made up of two parts engaged one inside the other, namely a front cuff 14 and a rear cover 15 which can pivot all the two around the common horizontal and transverse axis 3. In this case it is the upper and rear part of the rear cover 15 which has the shoulder 11 under which is housed the upper end 7c of the stiffening element 7 Furthermore, in this alternative embodiment, the locking of the stiffening element 7 and of the rear cover 15, in the skiing practice position, is ensured by the engagement of a finger 16 provided on the rear wall 15a. of the rear cover 15, projecting towards the rear and engaging in a hollow or opposite hole 17 formed in the internal face 7b opposite the stiffening element 7. It should also be noted that the pivot axis Element 8 stiffening 7 is carried by a boss 18, forming a bearing, provided on the rear wall of the bottom of shell 1, substantially at the level of the pivot axis 3 of the rod but behind it.

Pour permettre le basculement du capot postérieur 15 vers l'arrière, dans la position de chaussage/déchaussage représentée sur la figure 6, ce capot présente, dans la partie inférieure de sa paroi postérieure 15a, une encoche 15b, ouverte vers le bas, débouchant dans le bord inférieur 15c du capot 15. Cette encoche 15b s'étend de part et d'autre de la partie extrême inférieure 7e de l'élément de rigidification 7 qui est réalisée en forme de chape. Les deux ailes de cette chape 7e sont disposées de part et d'autre du bossage 18, venant de moulage avec la paroi postérieure du bas de coque 1, et qui constitue le palier pour l'axe de pivotement horizontal et transversal 8. La profondeur (ou hauteur) de l'encoche 15b est choisie suffisante pour permettre un basculement d'un angle suffisant du capot 15 vers l'arrière comme il est représenté sur la figure 6.To allow the rear cover 15 to tilt backwards, in the boot / release position shown in FIG. 6, this cover has, in the lower part of its rear wall 15a, a notch 15b, open downwards, opening out in the lower edge 15c of the cover 15. This notch 15b extends on either side of the lower end portion 7e of the stiffening element 7 which is produced in the form of a yoke. The two wings of this clevis 7e are arranged on either side of the boss 18, coming from molding with the rear wall of the bottom of the shell 1, and which constitutes the bearing for the horizontal and transverse pivot axis 8. The depth (or height) of the notch 15b is chosen to be sufficient to allow a tilting of a sufficient angle of the cover 15 towards the rear as shown in FIG. 6.

La chaussure représentée sur la figure 8 est du type comportant un collier 2 constituant la tige d'une seule pièce et qui est pourvu, dans sa partie antérieure, d'un dispositif 19 de serrage du bas de jambe constitué de boucles de serrage conventionnelles. Dans ce cas la liaison entre l'élément de rigidification 7 et le collier 2 est obtenue au moyen d'un dispositif de verrouillage indépendant 20, de tout type approprié, rendant solidaire la partie supérieure de l'élément de rigidification 7 de la partie supérieure et postérieure du collier 2.The shoe shown in FIG. 8 is of the type comprising a collar 2 constituting the upper in one piece and which is provided, in its front part, with a device 19 for tightening the lower leg constituted by conventional tightening loops. In this case the connection between the stiffening element 7 and the collar 2 is obtained by means of an independent locking device 20, of any suitable type, making the upper part of the stiffening element 7 integral with the upper part. and posterior of the collar 2.

Dans la variante d'exécution représentée sur la figure 9 l'élément de rigidification 7 présente, dans sa face externe 7a, un creux 21 dans lequel est logé un levier 22 faisant partie d'un dispositif de serrage du cou-de-pied. Le levier 22 est articulé sur l'élément de rigidification 7, autour d'un axe horizontal et transversal 23, et à ce levier 22 est accroché un câble de serrage interne 24 qui pénètre à l'intérieur de la tige, à travers des ouvertures appropriées. Ce câble de serrage 24 passe sur des éléments de renvoi internes 25 et il s'étend jusqu'à une plaque de répartition de pression 26, s'étendant au-dessus du cou-de-pied et par-dessus laquelle passe le câble de serrage 24. Par ailleurs la tige de la chaussure est pourvue de moyens de serrage du bas de jambe 27, de tout type approprié, lesquels assurent le serrage de la manchette avant 14 et du capot postérieur 15.In the variant shown in FIG. 9, the stiffening element 7 has, in its external face 7a, a recess 21 in which is housed a lever 22 forming part of a device for tightening the instep. The lever 22 is articulated on the stiffening element 7, around an axis horizontal and transverse 23, and to this lever 22 is attached an internal clamping cable 24 which penetrates inside the rod, through suitable openings. This cable 24 passes over internal deflection elements 25 and it extends to a pressure distribution plate 26, extending above the instep and over which the cable passes. tightening 24. Furthermore, the upper of the shoe is provided with means for tightening the lower leg 27, of any suitable type, which ensure the tightening of the front cuff 14 and the rear cover 15.

En position de pratique du ski, ainsi qu'il est représenté sur la figure 9, le levier 22 s'étend vers le bas à partir de son axe d'articulation transversal supérieur 23, le long du fond du creux 21, et le câble de serrage 24 est tendu. Cette tension du câble 24 est transmise, par l'intermédiaire du levier 22 et de son axe 23, à l'élément de rigidification 7 qui est ainsi plaqué contre la paroi postérieure 15a du capot postérieur 15. Le verrouillage, dans cette position, est assuré par l'engagement d'un doigt 16, prévu dans la partie supérieure de la paroi postérieure 15a du capot 15, dans un creux 17 prévu dans la partie supérieure de la face interne 7b de l'élément de rigidification 7. Si le skieur soulève le lever 22 pour le faire basculer vers le haut en position de desserrage du cou-de-pied, comme il est représenté en trait mixte sur la figure 9, le câble 24 se détend si bien que le cou-de-pied n'est plus comprimé par la plaque de répartition de pression 26 et l'élément de rigidification 7 bascule en partie en arrière : le skieur peut alors marcher aisément, la manchette avant 14 et le capot arrière 15 constituant la tige étant alors toujours serrés sur le bas de jambe du skieur par le dispositif de serrage 27 mais pouvant pivoter dans leur ensemble autour de l'axe 3.In the skiing practice position, as shown in FIG. 9, the lever 22 extends downward from its upper transverse articulation axis 23, along the bottom of the hollow 21, and the cable clamp 24 is tight. This tension of the cable 24 is transmitted, via the lever 22 and its axis 23, to the stiffening element 7 which is thus pressed against the rear wall 15a of the rear cover 15. The locking, in this position, is ensured by the engagement of a finger 16, provided in the upper part of the rear wall 15a of the cover 15, in a recess 17 provided in the upper part of the internal face 7b of the stiffening element 7. If the skier raise the lever 22 to tilt it upwards in the release position of the instep, as shown in dashed line in Figure 9, the cable 24 relaxes so that the instep does not is more compressed by the pressure distribution plate 26 and the stiffening element 7 tilts partly back: the skier can then walk easily, the front cuff 14 and the rear cover 15 constituting the rod then being always tightened at the bottom skier's leg by the clamping device 27 but which can pivot as a whole around the axis 3.

La chaussure représentée sur la figure 10 diffère de celle de la figure 9 du fait que le levier de serrage 22 commande également le serrage du bas de jambe. A cet effet un second câble 28, assurant le serrage de la manchette avant 14 et du capot arrière 15 autour du bas de jambe du skieur, est également accroché au lever de serrage pivotant 22.The shoe shown in Figure 10 differs from that of Figure 9 in that the tightening lever 22 also controls the tightening of the lower leg. To this end, a second cable 28, ensuring the tightening of the front cuff 14 and the rear cover 15 around the lower leg of the skier, is also attached to the pivoting tightening lever 22.

Suivant une autre variante le câble de serrage 24 pourrait être relié à des moyens de tenue de l'avant-pied logés à l'intérieur de la partie antérieure du bas de coque 1.According to another variant, the tightening cable 24 could be connected to means for holding the forefoot housed inside the front part of the bottom of the shell 1.

Dans la variante d'exécution de l'invention représentée sur la figure 11 le câble ou la sangle 6 de serrage du bas de jambe, qui passe à travers l'ouverture supérieure 9 de l'élément de rigidification 7, est solidaire, à l'une de ses extrémités, d'une plaque d'amarrage 29, pouvant coulisser, sensiblement horizontalement, dans une lumière 31 formée dans une paroi latérale du collier 2. La longueur, c'est-à-dire la dimension horizontale, de la plaque d'amarrage 29 est un peu inférieure à celle de la lumière 31, de manière à laisser entre elles un jeu postérieur a en position de serrage. La plaque d'amarrage 29 porte par ailleurs, sur sa surface externe, un ou plusieurs plots d'ancrage 32 autour de l'un desquels peut venir s'accrocher l'extrémité d'un câble 33 relié à la sangle de serrage 6 par l'intermédiaire du levier de serrage du bas de jambe qui n'apparaît pas sur la figure 11. Par conséquent, lors de l'ouverture du lever de serrage, la sangle 6 et le câble 33 ne sont plus mis sous tension si bien que la plaque d'amarrage 29 peut se déplacer légèrement vers l'arrière, dans la lumière 31, d'une distance correspondant au jeu postérieur a. Cette course a détermine par conséquent la distance dont peut basculer vers l'arrière la partie supérieure de l'élément de rigidification 7.In the alternative embodiment of the invention shown in FIG. 11, the cable or strap 6 for tightening the lower leg, which passes through the upper opening 9 of the stiffening element 7, is secured to the 'one of its ends, of a mooring plate 29, which can slide, substantially horizontally, in a slot 31 formed in a side wall of the collar 2. The length, that is to say the horizontal dimension, of the mooring plate 29 is a little lower than that of the light 31, so as to leave a backlash a between them in the clamping position. The mooring plate 29 also carries, on its external surface, one or more anchoring studs 32 around one of which can hang the end of a cable 33 connected to the tightening strap 6 by via the lower leg tightening lever which does not appear in FIG. 11. Consequently, when the tightening lever is opened, the strap 6 and the cable 33 are no longer tensioned so that the mooring plate 29 can move slightly backwards, in the lumen 31, by a distance corresponding to the rear clearance a . This race therefore determines the distance which can tip backwards the upper part of the stiffening element 7.

La figure 12 représente une variante des moyens limitant le basculement de l'élément de rigidification 7 vers l'arrière. Dans ce cas la sangle 6 de serrage du bas de jambe porte une barrette transversale 34 qui est sertie sur la sangle 6, à une distance a en avant d'une butée 35 prévue sur la paroi latérale du collier 2 lorsque le bas de jambe est serré. Là encore, lorsque la sangle 6 est desserrée, elle ne peut reculer que de la distance a, c'est-à-dire jusqu'à ce que la barrette 34 vienne en contact avec la butée 35, ce qui limite le basculement de l'élément de rigidification 7 vers l'arrière.FIG. 12 represents a variant of the means limiting the tilting of the stiffening element 7 towards the rear. In this case, the lower leg tightening strap 6 carries a transverse bar 34 which is crimped on the strap 6, at a distance a in front of a stop 35 provided on the side wall of the collar 2 when the lower leg is tight. Again, when the strap 6 is loosened, it can only move back a distance a , that is to say until the bar 34 comes into contact with the stop 35, which limits the tilting of the stiffening element 7 towards the rear.

Dans la variante d'exécution représentée sur la figure 13 l'aile latérale inférieure 7d de l'élément de rigidification 7 qui s'étend dans l'espace compris entre le collier 2 et le bas de coque 1, porte, sur sa face interne, c'est-à-dire celle qui est tournée vers la paroi du bas de coque, un pion 36 qui est engagé dans une lumière 37 en forme d'arc de cercle centré sur l'axe 8, laquelle est formée dans la paroi du bas de coque 1 en étant inclinée de bas en haut et d'avant en arrière. Le déplacement du pion 36 dans la lumière 37, lors du basculement vers l'arrière conjoint du collier 2 et de l'élément de rigidification 7 après desserrage du câble 6, commande positivement le mouvement de pivotement de l'élément de rigidification 7 lequel est limité lorsque le pion 36 vient en contact avec l'extrémité supérieure de la lumière 37.In the variant shown in FIG. 13, the lower lateral wing 7d of the stiffening element 7 which extends in the space between the collar 2 and the bottom of the shell 1, carries, on its internal face , that is to say that which faces the bottom wall of the shell, a pin 36 which is engaged in a light 37 in the form of an arc of a circle centered on the axis 8, which is formed in the wall from the bottom of the shell 1 while being inclined from bottom to top and from front to back. The displacement of the pin 36 in the slot 37, during the joint rearward tilting of the collar 2 and the stiffening element 7 after loosening the cable 6, positively controls the pivoting movement of the stiffening element 7 which is limited when the pin 36 comes into contact with the upper end of the light 37.

Naturellement la disposition décrite ci-dessus pourrait être inversée, c'est-à-dire que le pion 36 pourrait être solidaire du bas de coque 1, la lumière 37 étant formée dans l'aile 7d de l'élément de rigidification 7.Naturally, the arrangement described above could be reversed, that is to say that the pin 36 could be integral with the bottom of the shell 1, the light 37 being formed in the wing 7d of the stiffening element 7.

La chaussure représentée sur les figures 14 et 15 comporte une jupe d'étanchéité 38 qui est fixée, à son extrémité supérieure 39, à la paroi postérieure 2b du collier 2 et qui est disposée entre le collier 2 et l'élément de rigidification 7. A l'endroit de cette zone de fixation 39 la jupe 38 est articulée, ce qui peut être obtenu en prévoyant une zone souple de cette jupe. La jupe d'étanchéité 38 s'étend vers le bas, à une certaine distance de la paroi postérieure 2b du collier 2, en délimitant un espace libre en regard de l'ouverture prévue dans la partie inférieure de la paroi postérieure 2b pour permettre le basculement du collier 2 vers l'arrière. En position de pratique du ski, lorsque l'élément de rigidification 7 est plaqué contre la paroi postérieure 2b du collier 2, la jupe 38 est aplatie contre cette paroi postérieure et elle contribue ainsi à assurer l'étanchéité.The shoe shown in FIGS. 14 and 15 comprises a sealing skirt 38 which is fixed, at its upper end 39, to the rear wall 2b of the collar 2 and which is disposed between the collar 2 and the stiffening element 7. At the location of this fixing zone 39 the skirt 38 is articulated, which can be obtained by providing a flexible zone of this skirt. The sealing skirt 38 extends downward, at a certain distance from the rear wall 2b of the collar 2, delimiting a free space opposite the opening provided in the lower part of the rear wall 2b to allow the tilting of collar 2 backwards. In the skiing practice position, when the stiffening element 7 is pressed against the rear wall 2b of the collar 2, the skirt 38 is flattened against this rear wall and it thus contributes to sealing.

Les figures 16 à 27 illustrent diverses variantes d'exécution de moyens prévus à la partie supérieure de l'élément de rigidification 7 pour faciliter le guidage et la mise en place de cet élément de rigidification 7 en position active, en évitant au maximum les frottements dans cette zone entre les pièces en regard. Ces moyens permettent d'obtenir également un déblocage plus facile de l'élément de rigidification 7 lors de la mise hors tension du câble de serrage 6 maintenant l'élément de rigidification 7 contre la paroi postérieure 2b du collier 2.Figures 16 to 27 illustrate various alternative embodiments of means provided at the upper part of the stiffening element 7 to facilitate the guiding and the positioning of this stiffening element 7 in the active position, avoiding friction as much as possible. in this area between the facing pieces. These means also make it possible to obtain an easier release of the stiffening element 7 when the tensioning cable 6 is put off, keeping the stiffening element 7 against the rear wall 2b of the collar 2.

Sur la figure 16 l'extrémité supérieure 7c de l'élément de rigidification 7 forme une rampe inclinée de bas en haut et d'avant en arrière et s'étendant entre les faces interne 7b et externe 7a de l'élément de rigidification 7. En position de verrouillage et de rigidification cette rampe inclinée vient se placer sous l'épaulement 11 qui constitue lui aussi une rampe présentant la même inclinaison. Par ailleurs pour faciliter la mise en place et le dégagement de l'élément de rigidification 7, le doigt de verrouillage 12 présente une forme arrondie.In FIG. 16, the upper end 7c of the stiffening element 7 forms a ramp inclined from the bottom up and from front to back and extending between the internal 7b and external 7a faces of the stiffening element 7. In the locking and stiffening position, this inclined ramp is placed under the shoulder 11 which also constitutes a ramp having the same inclination. Furthermore, to facilitate the positioning and disengagement of the stiffening element 7, the locking finger 12 has a rounded shape.

Dans la variante d'exécution représentée sur les figures 17 et 18 la face interne 7b de l'élément de rigidification 7 porte, à sa partie supérieure, une lame 41 qui comprend successivement, de haut en bas, une partie supérieure 41a constituant une rampe inclinée de bas en haut et d'avant en arrière, plaquée contre l'extrémité supérieure 7c, de l'élément de rigidification 7, le doigt de verrouillage 12 destiné à s'engager dans le trou 13, percé dans la paroi postérieure 2b de la tige 2 et une partie inférieure 41b formant lame de ressort. Cette lame de ressort 41b est bombée en direction de la paroi postérieure 2b du collier 2, de manière à être écrasée lorsque l'élément de rigidification 7 est mis en place, en position active, contre le collier 2 et à se détendre, en écartant l'élément de rigidification 7 du collier 2, lorsque cet élément 7 doit basculer vers l'arrière.In the variant shown in FIGS. 17 and 18, the internal face 7b of the stiffening element 7 carries, at its upper part, a blade 41 which successively comprises, from top to bottom, an upper part 41a constituting a ramp inclined from bottom to top and front to back, pressed against the upper end 7c, of the stiffening element 7, the locking finger 12 intended to engage in the hole 13, drilled in the rear wall 2b of the rod 2 and a lower part 41b forming a leaf spring. This leaf spring 41b is curved in the direction of the rear wall 2b of the collar 2, so as to be crushed when the stiffening element 7 is put in place, in the active position, against the collar 2 and to relax, moving aside the stiffening element 7 of the collar 2, when this element 7 must tilt backwards.

La figure 19 illustre une disposition inverse de celle représentée sur les figures 17 et 18 et dans ce cas c'est la paroi postérieure 2b de la tige 2 qui porte la lame rapportée 41. Cette lame 41 comprend successivement de haut en bas, comme dans le cas précédent, la partie supérieure 41a constituant la rampe inclinée qui est plaquée contre l'épaulement 11, le doigt de verrouillage 16, en saillie vers l'arrière, qui est destiné à s'engager dans le creux 17 de l'élément de rigidification 7, et une partie inférieure 41b cambrée vers l'extérieur et formant lame de ressort.FIG. 19 illustrates a reverse arrangement to that shown in FIGS. 17 and 18 and in this case it is the rear wall 2b of the rod 2 which carries the insert blade 41. This blade 41 successively comprises from top to bottom, as in the previous case, the upper part 41a constituting the inclined ramp which is pressed against the shoulder 11, the locking finger 16, projecting rearward, which is intended to engage in the recess 17 of the element stiffening 7, and a lower part 41b curved outwards and forming a leaf spring.

Dans la variante d'exécution représentée sur la figure 20 l'élément de rigidification 7 porte, sur sa face interne 7b, deux lames indépendantes à savoir une lame supérieure 42 constituant une rampe 42a inclinée de bas en haut et d'avant en arrière et le doigt de verrouillage 12, et une lame inférieure 43 formant la lame de ressort pour repousser l'élément de rigidification vers l'arrière.In the variant shown in FIG. 20, the stiffening element 7 carries, on its internal face 7b, two independent blades, namely an upper blade 42 constituting a ramp 42a inclined from bottom to top and from front to back and the locking finger 12, and a lower blade 43 forming the spring leaf to push the stiffening element back.

Suivant une variante les deux lames indépendantes 42 et 43 pourraient être portées par la paroi postérieure 2b de la tige 2, comme dans le cas de la variante illustrée sur la figure 19.According to a variant, the two independent blades 42 and 43 could be carried by the rear wall 2b of the rod 2, as in the case of the variant illustrated in FIG. 19.

Dans la variante d'exécution représentée sur les figures 21 et 22 le doigt de verrouillage 12, destiné à être introduit dans le trou 13, de la paroi postérieure 2b de la tige 2, est constitué par un élément mobile sollicité élastiquement vers l'arrière qui est porté par la partie supérieure de l'élément de rigidification 7. Plus particulièrement le doigt de verrouillage 12 est monté mobile traversant la face interne 7b de l'élément de rigidification 7 et débouchant dans l'ouverture supérieure 9. Dans cette ouverture se trouve une platine d'appui 45 formant une seule pièce avec le doigt de verrouillage 12 et sur laquelle passe le câble de serrage 6. Cette platine 45 et par conséquent le doigt de verrouillage 12 sont repoussés vers l'arrière, en direction de l'intérieur de l'ouverture 9, par un ressort 46 prenant appui sur la paroi de l'élément de rigidification 7 en vis-à-vis de la surface de l'épaulement constitué par la platine d'appui. Lorsque le câble de serrage 6 est détendu, le ressort 46 repousse la platine 45 et le doigt de verrouillage 12 à l'intérieur de l'ouverture 9, comme il est représenté sur la figure 21, si bien que le doigt 12 est escamoté à l'intérieur de l'élément de rigidification 7. Par contre lorsque le câble 6 est tendu, il provoque un déplacement de la platine 45 et du doigt de verrouillage 12 vers l'extérieur, c'est-à-dire vers l'avant, si bien que le doigt de verrouillage 12 s'engage alors dans le trou 13, comme il est représenté sur la figure 22.In the variant shown in FIGS. 21 and 22, the locking finger 12, intended to be introduced into the hole 13, of the rear wall 2b of the rod 2, is constituted by a movable element urged elastically towards the rear. which is carried by the upper part of the stiffening element 7. More particularly the locking finger 12 is movably mounted passing through the internal face 7b of the stiffening element 7 and opening into the upper opening 9. In this opening is finds a support plate 45 forming a single piece with the locking finger 12 and over which passes the clamping cable 6. This plate 45 and therefore the locking finger 12 are pushed backwards, towards the inside of the opening 9, by a spring 46 bearing on the wall of the stiffening element 7 facing the surface of the shoulder formed by the support plate. When the tightening cable 6 is relaxed, the spring 46 pushes back the plate 45 and the locking finger 12 inside the opening 9, as shown in FIG. 21, so that the finger 12 is retracted to inside the stiffening element 7. On the other hand when the cable 6 is stretched, it causes a displacement of the plate 45 and of the locking finger 12 outwards, that is to say forward , so that the locking finger 12 then engages in the hole 13, as shown in FIG. 22.

La figure 23 représente une variante d'exécution dans laquelle la face interne 7b de l'élément de rigidification 7 porte, à sa partie supérieure, une lame de ressort 47. Cette lame de ressort 47 est fixée, à sa partie inférieure, à l'élément 7, elle s'étend le long de la face interne 7b et elle porte le doigt de verrouillage 12. La partie supérieure de la lame de ressort 47 est cambrée de manière à être inclinée de bas en haut et d'avant en arrière, à une certaine distance de l'extrémité supérieure de l'élément de rigidification 7. Par conséquent la partie supérieure de la lame de ressort 47 est déformée élastiquement, en étant appliquée contre la rampe inclinée 7c, lorsque l'élément de rigidification est mis en place, par suite du serrage du câble 6, et elle peut se détendre, lors du desserrage du câble, en écartant l'élément de rigidification 7 du collier 2.FIG. 23 shows an alternative embodiment in which the internal face 7b of the stiffening element 7 carries, at its upper part, a spring leaf 47. This spring leaf 47 is fixed, at its lower part, to the element 7, it extends along the internal face 7b and it carries the finger locking device 12. The upper part of the spring leaf 47 is arched so as to be inclined from bottom to top and from front to back, at a certain distance from the upper end of the stiffening element 7. Consequently the upper part of the spring leaf 47 is elastically deformed, being applied against the inclined ramp 7c, when the stiffening element is put in place, as a result of the tightening of the cable 6, and it can relax during loosening of the cable, spreading the stiffening element 7 from the collar 2.

Suivant une variante la lame de ressort 47 pourrait être portée par la paroi postérieure 2b de la tige 2, de la même façon que la lame 41 représentée sur la figure 19. Dans ce cas la lame 47 porterait un doigt de verrouillage analogue au doigt 16, en saillie vers l'arrière et destiné à s'engager dans un creux 17 de l'élément de rigidification 7.According to a variant the spring leaf 47 could be carried by the rear wall 2b of the rod 2, in the same way as the leaf 41 shown in FIG. 19. In this case the leaf 47 would carry a locking finger similar to the finger 16 , projecting towards the rear and intended to engage in a hollow 17 of the stiffening element 7.

Dans la variante d'exécution représentée sur les figures 24 et 25 la paroi postérieure 2b du collier 2 porte un doigt de verrouillage 16 en saillie vers l'arrière et qui peut s'engager dans un creux 17 prévu dans la face interne 7b de l'élément de rigidification 7. Le doigt de verrouillage 16 est creusé d'un trou borgne 48 dans lequel est logé un piston mobile 49 sollicité axialement vers l'extérieur par un ressort 51 et faisant normalement saillie hors du trou 48 lorsque le ressort 51 est détendu. Lorsque l'élément de rigidification 7 est mis en place en position active (figure 24), le doigt de verrouillage 12 est engagé dans le creux 17 de l'élément 7 et le piston 49 est repoussé vers l'intérieur du trou borgne 48, le ressort 51 étant comprimé. Lorsque l'élément de rigidification 7 est libéré par le câble 6 alors desserré, le ressort 51 se détend, il repousse le piston 49, en contact avec le fond du creux 17, vers l'extérieur, ce qui a pour effet d'écarter l'élément de rigidification 7 du collier 2.In the variant shown in FIGS. 24 and 25, the rear wall 2b of the collar 2 carries a locking finger 16 projecting towards the rear and which can engage in a recess 17 provided in the internal face 7b of the stiffening element 7. The locking finger 16 is hollowed out of a blind hole 48 in which is housed a movable piston 49 biased axially outwards by a spring 51 and normally projecting out of the hole 48 when the spring 51 is relaxed. When the stiffening element 7 is placed in the active position (FIG. 24), the locking finger 12 is engaged in the hollow 17 of the element 7 and the piston 49 is pushed back towards the inside of the blind hole 48, the spring 51 being compressed. When the stiffening element 7 is released by the cable 6 then loosened, the spring 51 relaxes, it pushes the piston 49, in contact with the bottom of the recess 17, outwards, which has the effect of spreading the stiffening element 7 of the collar 2.

Une disposition inverse de celle représentée sur les figures 24 et 25 pourrait être également adoptée, ainsi qu'il est représenté sur la figure 26. Dans ce cas la paroi postérieure 2b de la tige 2 est creusée d'un trou borgne 13 et le doigt de verrouillage 12, porté par la paroi antérieure 7b de l'élément de rigidification 7, est également creusé d'un trou borgne 48 dans lequel est logé un piston mobile 49 repoussé vers l'avant par un ressort 51.A reverse arrangement to that shown in Figures 24 and 25 could also be adopted, as shown in Figure 26. In this case the rear wall 2b of the rod 2 is hollowed out with a blind hole 13 and the finger locking 12, carried by the front wall 7b of the stiffening element 7, is also hollowed out with a blind hole 48 in which is housed a movable piston 49 pushed forward by a spring 51.

La figure 27 représente une variante dans laquelle un ressort de compression 52 est disposé entre la face frontale externe du doigt de verrouillage 16, alors plein, et le fond du creux 17. Ce ressort 52 repousse, en se détendant, l'élément de rigidification 7, lorsque le câble 6 est desserré.FIG. 27 represents a variant in which a compression spring 52 is disposed between the external front face of the locking finger 16, then full, and the bottom of the hollow 17. This spring 52 pushes back, by relaxing, the stiffening element 7, when the cable 6 is loose.

Suivant une variante de réalisation la disposition représentée sur la figure 27 pourrait également utilisée avec un doigt de verrouillage 12 porté par la paroi antérieure 7b de l'élément de rigidification 7 et s'engageant dans un trou borgne 13 prévu dans la paroi postérieure 2b de la tige 2, le ressort de compression 52 étant alors disposé entre le fond du trou borgne 13 et le doigt de verrouillage 12.According to an alternative embodiment, the arrangement shown in FIG. 27 could also be used with a locking finger 12 carried by the front wall 7b of the stiffening element 7 and engaging in a blind hole 13 provided in the rear wall 2b of the rod 2, the compression spring 52 then being disposed between the bottom of the blind hole 13 and the locking finger 12.

On décrira maintenant, en se référant aux figures 28 à 33, divers dispositifs permettant d'obtenir éventuellement une flexion avant (ou arrière) variable et contrôlée de la tige de la chaussure.We will now describe, with reference to FIGS. 28 to 33, various devices making it possible to obtain variable and controlled front (or rear) flexion of the upper of the shoe.

Cette flexion est obtenue en autorisant un léger déplacement vers le bas (flexion avant) ou vers le haut (flexion arrière) du doigt de verrouillage 12 dans le trou 13 de la tige le recevant, ce déplacement résultant alors de la déformation du triangle 3,8,12 dont les deux sommets inférieurs 3,8 sont fixes et le sommet supérieur 12 est seul mobile.This bending is obtained by allowing a slight downward movement (front bending) or upward (rear bending) of the locking finger 12 in the hole 13 of the rod receiving it, this displacement then resulting from the deformation of the triangle 3,8,12 whose two lower vertices 3,8 are fixed and the upper vertex 12 is only mobile.

Dans la forme d'exécution représentée sur les figures 28 et 29 la paroi postérieure 2b du collier 2 porte, en dessous du trou 13 dans lequel est engagé le doigt de verrouillage 12 porté par l'élément de rigidification 7, un disque 53 permettant de régler l'amplitude de la flexion avant de la tige. Ce disque de réglage 53 est monté à rotation sur la paroi postérieure 2b, autour d'un axe horizontal et longitudinal 54 et la partie supérieure de son bord 53a délimite le trou 13 vers le bas. Le disque de réglage 53 comporte au moins une encoche 55 débouchant dans son bord 53a, dans une partie de sa périphérie. Par conséquent si le disque de réglage 53 se trouve dans la position représentée sur les figures 28 et 29, le bord 53a du disque de réglage 53 se trouve situé à faible distance en- dessous du doigt de verrouillage 12, ce qui limite par conséquent le déplacement relatif possible de ce doigt vers le bas et par conséquent la flexion avant de la tige est minimale. Par contre si on fait tourner de 180° le disque de réglage 53, de manière à amener l'encoche 55 en dessous du doigt de verrouillage 12, ce doigt peut alors se déplacer sur une distance plus grande vers le bas, ce qui permet d'obtenir une flexion avant maximale de la tige.In the embodiment shown in FIGS. 28 and 29, the rear wall 2b of the collar 2 carries, below the hole 13 in which is engaged the locking pin 12 carried by the stiffening element 7, a disc 53 making it possible to adjust the amount of forward flexion of the rod. This adjustment disc 53 is rotatably mounted on the rear wall 2b, around a horizontal and longitudinal axis 54 and the upper part of its edge 53a delimits the hole 13 downwards. The adjustment disc 53 has at least one notch 55 opening into its edge 53a, in part of its periphery. Consequently, if the adjustment disc 53 is in the position shown in FIGS. 28 and 29, the edge 53a of the adjustment disc 53 is located a short distance below the locking finger 12, which consequently limits the possible relative movement of this finger downward and therefore the forward bending of the rod is minimal. On the other hand, if the adjusting disc 53 is rotated by 180 °, so as to bring the notch 55 below the locking finger 12, this finger can then move a greater distance downwards, which allows d '' obtain maximum forward bending of the rod.

Suivant une variante le bord 53a du disque de réglage 53 pourrait former une came progressive, ce qui permettrait de régler d'une manière continue l'amplitude de la flexion avant de la tige.According to a variant, the edge 53a of the adjustment disc 53 could form a progressive cam, which would make it possible to continuously adjust the amplitude of the forward bending of the rod.

Dans la variante d'exécution représentée sur la figure 30 l'élément de rigidification 7 porte un doigt de verrouillage 12 qui a une forme cylindrique, à section droite semi-circulaire, et qui est formé sur la moitié de la face frontale d'un pion cylindrique circulaire 56 monté à rotation sur l'élément de rigidification 7, autour de son axe horizontal et longitudinal. Le diamètre du doigt de verrouillage 12 est égal à la hauteur d'un trou 13 dans la paroi postérieure 2b de la tige 2, ayant par exemple une section droite carrée. Par conséquent il est possible de régler l'amplitude de la flexion avant de la tige en faisant tourner le pion 56 et par conséquent le doigt 12 autour de leur axe de rotation. Dans la position représentée sur les figures 30 et 31A, le doigt de verrouillage 12 se trouve en position horizontale supérieure, en délimitant, pour le doigt 12, une course possible a1 vers le bas égale au rayon du cercle de la section droite. Cette position correspond à l'obtention d'une flexion avant maximale pour la tige. Si l'on fait tourner le pion 56 et le doigt 12 à 90°, pour amener le doigt 12 en position verticale comme il est représenté sur la figure 31B, ce doigt 12 empêche toute possibilité de flexion de la tige. Enfin si on le fait tourner de 180° par rapport à la position initiale représentée sur la figure 31A pour l'amener dans la position représentée sur la figure 31C, c'est-à-dire en position inférieure dans le trou 13, le doigt 12 peut se déplacer vers le haut de la distance a1 et on obtient alors une possibilité de flexion en appui arrière de la tige.In the variant shown in FIG. 30, the stiffening element 7 carries a locking finger 12 which has a cylindrical shape, of semi-circular cross section, and which is formed on half of the front face of a circular cylindrical pin 56 rotatably mounted on the stiffening element 7, around its horizontal and longitudinal axis. The diameter of the locking finger 12 is equal to the height of a hole 13 in the rear wall 2b of the rod 2, for example having a square cross section. Consequently, it is possible to adjust the amplitude of the forward bending of the rod by rotating the pin 56 and consequently the finger 12 around their axis of rotation. In the position shown in Figures 30 and 31A, the locking finger 12 is in the upper horizontal position, in defining, for the finger 12, a possible race 1 down equal to the radius of the circle of the cross section. This position corresponds to obtaining maximum forward bending for the rod. If the pin 56 and the finger 12 are rotated 90 °, to bring the finger 12 to the vertical position as shown in FIG. 31B, this finger 12 prevents any possibility of bending of the rod. Finally if it is rotated 180 ° relative to the initial position shown in Figure 31A to bring it into the position shown in Figure 31C, that is to say in the lower position in the hole 13, the finger 12 can move upwards by the distance a 1 and one then obtains a possibility of bending in rear support of the rod.

Les figures 32 et 33 représentent une variante d'exécution dans laquelle l'élément de rigidification 7 porte un doigt de verrouillage 12 engagé dans un trou oblong 13, allongé dans le sens vertical, et formé dans la paroi postérieure 2b du collier 2. Sur cette paroi postérieure 2a est monté à coulissement horizontal et transversal, au-dessous du doigt 12, un organe de réglage de l'amplitude de la flexion avant de la tige lequel est constitué par un tiroir 57 dans le bord supérieur 58 duquel sont formées une ou plusieurs encoches verticales voisines 59,61, de profondeurs différentes, lesquelles débouchent dans le bord supérieur 58. Si le tiroir 57 est placé dans sa position extrême droite sur la figure 33, c'est le bord supérieur 58 du tiroir 57 qui se trouve alors sous le doigt de verrouillage 12, si bien que celui-ci peut se déplacer seulement d'une faible distance vers le bas dans le trou oblong 13, ce qui correspond à une amplitude de flexion avant minimale pour la tige. Si le tiroir 57 est déplacé de manière à mettre l'encoche 59, de profondeur moyenne, en dessous du doigt de verrouillage 12, comme il est représenté sur les figures 32 et 33, le doigt de verrouillage 12 peut alors se déplacer vers le bas, dans le trou 13, sur une distance correspondant à la profondeur de l'encoche 59. Ceci correspond à une amplitude intermédiaire de flexion avant pour la tige. Enfin si le tiroir 57 est placé dans sa position extrême gauche sur la figure 33, c'est alors l'encoche 61 de grande profondeur qui est située sous le doigt de verrouillage 12, si bien que celui-ci peut se déplacer vers le bas sur une plus grande distance que précédemment, ce qui correspond à l'amplitude maximale de flexion avant pour la tige.Figures 32 and 33 show an alternative embodiment in which the stiffening element 7 carries a locking finger 12 engaged in an oblong hole 13, elongated in the vertical direction, and formed in the rear wall 2b of the collar 2. On this rear wall 2a is mounted to slide horizontally and transversely, below the finger 12, a member for adjusting the amplitude of the front bending of the rod which is constituted by a drawer 57 in the upper edge 58 of which are formed a or several neighboring vertical notches 59,61, of different depths, which open into the upper edge 58. If the drawer 57 is placed in its extreme right position in FIG. 33, it is the upper edge 58 of the drawer 57 which is then located under the locking finger 12, so that the latter can only move a short distance downward in the oblong hole 13, which corresponds to a minimum amplitude of forward bending for the rod. If the drawer 57 is moved so as to put the notch 59, of average depth, below the locking finger 12, as shown in FIGS. 32 and 33, the locking finger 12 can then move downwards , in the hole 13, over a distance corresponding to the depth of the notch 59. This corresponds to an intermediate amplitude of forward bending for the rod. Finally if the drawer 57 is placed in its extreme left position in FIG. 33, it is then the notch 61 of great depth which is located under the locking finger 12, so that the latter can move downwards over a greater distance than previously, which corresponds to the maximum amplitude of forward bending for the rod.

Naturellement le dispositif représenté sur les figures 32 et 33 pourrait être monté de manière à commander l'amplitude de la flexion arrière de la tige. Il suffirait, pour cela, de placer le tiroir 57, avec ses encoches 59 et 61 ouvertes vers le bas, au-dessus du doigt de réglage 12 et de faire en sorte que le trou 13 soit allongé vers le haut.Naturally, the device shown in FIGS. 32 and 33 could be mounted so as to control the amplitude of the rear bending of the rod. It would suffice, for this, to place the drawer 57, with its notches 59 and 61 open downwards, above the adjusting finger 12 and to make sure that the hole 13 is elongated upwards.

Les dispositifs représentés sur les figures 28 à 33 pourraient être montés d'une manière inverse avec une chaussure portant un doigt de verrouillage 16 en saillie vers l'arrière sur la paroi postérieure 2b de la tige 2 et s'engageant dans un creux 17 de l'élément de rigidification 7.The devices shown in Figures 28 to 33 could be mounted in reverse with a shoe carrying a locking finger 16 projecting rearward on the rear wall 2b of the rod 2 and engaging in a recess 17 of the stiffening element 7.

On décrira maintenant, en se référant aux figures 34 à 37, divers dispositifs permettant de régler l'avancée de la tige de la chaussure, c'est-à-dire l'inclinaison de cette tige par rapport au bas de coque 1, afin de permettre au skieur de choisir, suivant sa morphologie, la position optimale de la tige qu'il souhaite pour la conduite de ses skis. Ces dispositifs sont conçus de manière à faire varier les positions relatives du doigt de verrouillage 12 et du trou 13 le recevant en fonction de l'avancée de la tige recherchée.We will now describe, with reference to FIGS. 34 to 37, various devices making it possible to adjust the advance of the upper of the shoe, that is to say the inclination of this upper relative to the bottom of the shell 1, in order to allow skiers to choose, according to their morphology, the optimal position of the rod they wish for the conduct of their skis. These devices are designed so as to vary the relative positions of the locking finger 12 and the hole 13 receiving it as a function of the advance of the desired rod.

La figure 34 représente une forme d'exécution dans laquelle l'élément de rigidification 7 porte un doigt de verrouillage 12 qui est monté mobile verticalement par rapport à l'élément de rigidification 7. A cet effet il est percé d'un trou taraudé de manière à constituer un écrou engagé sur une vis verticale 62 montée à rotation sur la partie supérieure de l'élément de rigidification 7 et solidaire d'une molette de réglage 63. Par conséquent il est possible, en faisant tourner plus ou moins la vis 62 par action sur la molette de réglage 63, de déplacer vers le haut ou vers le bas le doigt de verrouillage 12 et de régler par conséquent l'avancée de la tige.FIG. 34 represents an embodiment in which the stiffening element 7 carries a locking finger 12 which is mounted vertically movable relative to the stiffening element 7. For this purpose it is pierced with a tapped hole of so as to constitute a nut engaged on a vertical screw 62 rotatably mounted on the upper part of the stiffening element 7 and secured to an adjustment wheel 63. Consequently it is possible, by turning the screw 62 more or less by action on the adjusting wheel 63, move the locking finger 12 up or down and consequently adjust the advance of the rod.

Dans la variante d'exécution représentée sur la figure 35, l'élément de rigidification 7 porte un doigt de verrouillage 12 qui est destiné à s'engager dans un trou 13 qui est formé dans une pièce rapportée 64 montée réglable verticalement sur la paroi postérieure 2b du collier 2. Cette pièce 64 peut être constituée, par exemple, par un écrou dans lequel est engagé une vis verticale montée à rotation sur la paroi postérieure 2b et solidaire d'une molette de réglage.In the variant shown in FIG. 35, the stiffening element 7 carries a locking finger 12 which is intended to engage in a hole 13 which is formed in an insert 64 mounted vertically adjustable on the rear wall 2b of the collar 2. This part 64 can be constituted, for example, by a nut in which is engaged a vertical screw mounted for rotation on the rear wall 2b and secured to an adjustment wheel.

Dans la variante d'exécution représentée sur les figures 36 et 37 l'élément de rigidification 7 porte un doigt de verrouillage 12 qui est solidaire d'une embase crantée 65 dont les crans 66 coopèrent avec des crans similaires 67 portés par la partie supérieure de la face interne 7b de l'élément de rigidification 7. L'embase crantée 65 et le doigt de verrouillage 12 peuvent être ainsi montés et fixés dans l'une des positions verticales différentes possibles sur la partie supérieure de l'élément de rigidification 7, ce qui permet de faire varier l'avancée de la tige. Par ailleurs l'embase 65 qui porte le doigt de verrouillage 12, forme avantageusement une seule pièce avec une rampe de guidage inclinée supérieure 68. Cette rampe de guidage facilite la mise en place de l'élément de rigidification 7 contre le collier 2 et son déblocage lors du desserrage du câble 6.In the variant shown in FIGS. 36 and 37 the stiffening element 7 carries a locking finger 12 which is integral with a notched base 65 whose notches 66 cooperate with similar notches 67 carried by the upper part of the internal face 7b of the element of stiffening 7. The notched base 65 and the locking finger 12 can thus be mounted and fixed in one of the different vertical positions possible on the upper part of the stiffening element 7, which makes it possible to vary the advance of the stem. Furthermore the base 65 which carries the locking finger 12, advantageously forms a single piece with an upper inclined guide ramp 68. This guide ramp facilitates the positioning of the stiffening element 7 against the collar 2 and its release when loosening the cable 6.

Là encore on peut prévoir des variantes de réalisation du dispositif permettant de régler l'avancée de la tige de la chaussure dans le cas où la paroi postérieure 2b de cette tige 2 porte un doigt de verrouillage 16 en saillie vers l'arrière et s'engageant dans un creux 17 de l'élément de rigidification 7. Dans ce cas des moyens sont prévus pour régler soit la position du doigt de verrouillage 16 sur la paroi postérieure 2b de la tige 2 soit celle du creux associé 17 sur l'élément de rigidification 7.Here again, it is possible to provide alternative embodiments of the device making it possible to adjust the advance of the upper of the boot in the case where the rear wall 2b of this upper 2 carries a locking finger 16 projecting rearward and s' engaging in a recess 17 of the stiffening element 7. In this case means are provided for adjusting either the position of the locking finger 16 on the rear wall 2b of the rod 2 or that of the associated recess 17 on the element of stiffening 7.

Dans la variante d'exécution représentée sur la figure 38 la tige de la chaussure est constituée par un collier 2 qui pivote sur le bas de coque 1 autour d'un axe horizontal et transversal matérialisé par les tétons 3. Le collier 2 est dépourvu, sur la plus grande partie de sa hauteur, de sa paroi postérieure et seule subsiste une languette transversale supérieure 2d reliant les deux parties latérales 2e du collier 2 pivotant sur les tétons 3. Par ailleurs l'élément de rigidification 7 fait partie intégrante d'un capot arrière de rigidification indépendant 71 qui est articulé, à son extrémité inférieure, sur le bas de coque 1, autour de l'axe horizontal et transversal 8. Le capot arrière de rigidification 71 comprend une paroi postérieure 71a qui peut être plane ou, comme il est représenté sur la figure 38, courbe à concavité tournée vers l'arrière. Aux parties extrêmes supérieure et inférieure de la paroi postérieure 71a se raccordent les extrémités supérieure et inférieure de l'entretoise de rigidification 7. Des tirants 72 s'étendent entre la paroi postérieure 71 a du capot arrière de rigidification 71 et l'élément de rigidification 7. Cette paroi postérieure 71a est prolongée, vers l'avant, de chaque côté, par deux parties latérales supérieure 71b et inférieure 71c dont les bords antérieurs 71d présentent une forme complémentaire de celle des bords postérieurs des deux parties latérales 2e du collier 2. Autrement dit les bords antérieurs 71d du capot arrière de rigidification 71 sont en contact, en position de fermeture de la chaussure, avec les bords postérieurs des deux parties latérales 2e du collier 2 dont ils épousent le profil. On obtient ainsi, en position de pratique du ski, un verrouillage du collier 2 par le capot arrière de rigidification 71 et une excellente rigidité du collier 2 du fait de son maintien par le capot de rigidification 71, sur toute la hauteur de celui-ci. Chaque partie latérale supérieure 71b peut s'étendre davantage vers l'avant que la partie latérale inférieure 71c comme il est représenté sur la figure 38. Toutefois la disposition inverse pourrait être aussi adoptée et on pourrait même prévoir des parties supérieure 71b et inférieure 71c alignées verticalement, c'est-à-dire avec leurs bords antérieurs situés dans le prolongement l'un de l'autre.In the variant shown in FIG. 38, the upper of the shoe is constituted by a collar 2 which pivots on the bottom of the shell 1 around a horizontal and transverse axis materialized by the pins 3. The collar 2 is devoid, over the greater part of its height, from its rear wall and only an upper transverse tongue 2d remains, connecting the two lateral parts 2e of the collar 2 pivoting on the studs 3. Furthermore, the stiffening element 7 is an integral part of a independent rear stiffening cover 71 which is articulated, at its lower end, on the shell bottom 1, around the horizontal and transverse axis 8. The rear stiffening cover 71 comprises a rear wall 71a which may be planar or, as it is represented in FIG. 38, curve with concavity turned towards the rear. At the upper and lower end portions of the rear wall 71a are connected the upper and lower ends of the stiffening spacer 7. Tie rods 72 extend between the rear wall 71 a of the rear stiffening cover 71 and the stiffening element 7. This rear wall 71a is extended, towards the front, on each side, by two upper lateral parts 71b and lower 71c, the front edges 71d of which have a shape complementary to that of the rear edges of the two lateral parts 2e of the collar 2. In other words, the front edges 71d of the rear stiffening cover 71 are in contact, in the closed position of the boot, with the rear edges of the two lateral sides 2e of the collar 2 whose profile they match. There is thus obtained, in the skiing practice position, a locking of the collar 2 by the rear stiffening hood 71 and an excellent rigidity of the collar 2 due to its retention by the stiffening hood 71, over the entire height thereof. . Each upper side part 71b may extend further forward than the lower side part 71c as shown in FIG. 38. However, the reverse arrangement could also be adopted and one could even provide upper parts 71b and lower 71c aligned vertically, that is to say with their front edges located in the extension of one another.

Suivant une variante, la chaussure pourrait comporter les parties supérieure 71b et inférieure 71c du capot arrière de rigidification 71 uniquement sur sa face interne, c'est-à-dire celle tournée vers l'autre chaussure.According to a variant, the shoe could include the upper 71b and lower 71c parts of the rear stiffening cover 71 only on its internal face, that is to say that facing the other shoe.

Dans la chaussure représentée sur la figure 38 le câble 6 du dispositif de serrage du bas de jambe passe à travers l'ouverture supérieure délimitée entre le tirant supérieur 72 et la partie extrême supérieure de l'élément de rigidification 7. Il passe également à travers un oeillet 73 formé dans chaque partie latérale supérieure 71b du capot arrière de rigidification 71.In the shoe shown in Figure 38 the cable 6 of the lower leg clamping device passes through the upper opening defined between the upper tie 72 and the end part upper of the stiffening element 7. It also passes through an eyelet 73 formed in each upper lateral part 71b of the rear stiffening cover 71.

Claims (28)

  1. Alpine ski boot comprising especially a shell base (1), an upper (2; 14, 15) mounted at least partially pivotally on the shell base about a horizontal and transverge axis (3), a stiffening element (7) or spacer mounted pivotally at its lower end on the rear of shell base (1) about a horizontal and transverse axis (8) located behind pivot axis (3) of upper (2; 14, 15), means to ensure, in skiing position, a removable connection between the upper portion of stiffening element (7) and the rear portion of upper (2; 14, 15), characterized in that stiffening element (7) is constituted by an elongated rigid element, whole or punched with one or several openings (9) crossing it from side to side in the horizontal and transverse direction, and wherein the means ensuring the removable connection between the upper portion of stiffening element (7) and the rear portion of upper (2; 14, 15) comprise on the one hand, male (12, 16) and female (13, 17) members borne respectively by the two portions to be connected such that they engage into one another, and on the other hand, means to maintain stiffening element (7) applied against upper (2; 14, 15) in skiing position, constituted by a strap or tightening cable (6) hooked to a tightening lover (5) and forming part of a tightening device (4) for the lower part of the leg, this tightening cable (6) passing outside stiffening element (7) or through an opening (9) formed in this element.
  2. Alpine ski boot according to claim 1, characterized in that the lower portion of stiffening element (7) is extended frontwardly by two lateral wings (7d) covering the rear portion of shell base 1, just below the lower edge (2c) of upper (2).
  3. Alpine ski boot according to claim 1, characterized in that stiffening element (7) bears on its internal surface (7b), i.e., that which is applied against upper (2), a finger (12) projecting frontwardly and forming a latch engaging in a hole (13) pierced in the rear wall of upper (2).
  4. Alpine ski boot according to claim 1, characterized in that rear wall (15a) of rear portion (15) of the upper bears a finger (16) projecting rearwardly and engaging in a facing hollow or hole (17) formed in the internal surface (7b) opposite stiffening element (7).
  5. Alpine ski boot according to claim 1, characterized in that the means provided to maintain stiffening element (7) applied against upper (2;, 14, 15) in skiing position, are independent of a tightening device (19) of the lower part of the leg, to connect stiffening element (7) and upper (2).
  6. Alpine ski boot according to claim 1, characterized in that means are provided to limit rearward displacement of tightening cable (6) and consequently, rearward rocking of stiffening element (7).
  7. Alpine ski boot according to claim 6, characterized in that the tightening cable or strap (6) of the lower part of the log is affixed, at one of its ends, to a mooring plate (29) capable of sliding, substantially horizontally, in a slot (31) formed in a lateral wall of upper (2), the length, i.e., the horizontal dimension of mooring plate (29), being slightly less than that of slot (31), so as to leave between them a rear play (a) in tightening position, and mooring plate (29) further bears on its external surface, one or several anchoring pins (32) around one of which, the end of a cable (33) connected to tightening strap (6) by means of a tightening lever of the lower part of the leg is hooked.
  8. Alpine ski boot according to claim 6, characterized in that tightening strap (6) of the lower part of the leg bears a transverse bar (34) which is clinched on strap (6) at a distance (a) in tightening position, in front of an abutment (35) provided on the lateral wall of upper (2), said bar (34) coming into contact with abutment 35 when strap (6) is loosened.
  9. Alpine ski boot according to any of claims 1 to 5, characterized in that it comprises means (36, 37) to limit the rearward rocking motion of stiffening element (7).
  10. Alpine ski boot according to claim 9, characterized in that the means limiting rearward rocking of stiffening element (7) comprise a pin (36) borne by stiffening element (7) (or shell base (1)) and being displaced in a slot (37) formed in shell base (1) (or in stiffening element 7), this slot having a shape of an arc of a circle centered on the pivot axis (8) of stiffening element (7) and being inclined from the base up and from front-to-rear.
  11. Alpine ski boot according to claim 1, characterized in that stiffening element (7) bears a lever (22) forming part of a tightening device, this lever (22) being journaled about an axis (23) and being connected to at least one tightening cable (24, 28).
  12. Alpine ski boot according to claim 11, characterized in that an internal tightening cable (24), which passes over internal return elements (25), is hooked to lever (22) and extends up to tightening means (26) of the upper portion of the foot or up to the retention means of the fore-foot housed inside the front portion of shell base (1).
  13. Alpine ski boot according to claim 12, characterized in that pivoting lever (22) is also hooked to a second cable (28) ensuring tightening of upper (14, 15) around the lower part of the skier's leg.
  14. Alpine ski boot according to claim 1, characterized in that the rear portion (15) of the upper has, in the lower portion of its rear wall (15a), a notch (15b), open downwardly, ending in the lower edge (15c) extending on either side of lower end portion (7e) of stiffening element (7), the depth of notch (15b) being sufficient to enable appropriate rearward rocking of rear portion (15) of the upper.
  15. Alpine ski boot according to claim 1, characterized in that it comprises an impermeable skirt (38) which is arranged between upper (2) and stiffening element (7), this impermeable skirt (38) being fixed, at its upper end (39), to rear wall (2b) of upper (2) and extending downwardly opposite an opening provided in the lower portion of rear wall (2b) to enable rearward rocking of upper (2).
  16. Alpine ski boot according to claim 1, characterized in that the internal surface (7b) of stiffening element (7) (or rear wall (2b) of upper (2)) bears, at its upper portion, a blade (41) which comprises successively, from top to bottom, an upper portion (41a) forming a ramp inclined from the base up and from front-to- rear, a latching finger (12, 16), intended to be engaged in a hole (13) pierced in rear wall (2b) of upper (2) (or in a hollow (17) of stiffening element (7)), and a bulging lower portion (41b) forming a spring blade.
  17. Alpine ski boot according to claim 1, characterized in that the internal surface (7b) of stiffening element (7) (or rear wall (2b) of upper (2)) bears two independent blades, namely, an upper blade (42), constituting a ramp (42a) inclined from the base up and from front-to-rear, and a latching finger (12, 16), and a lower blade (43) forming a bulging spring blade.
  18. Alpine ski boot according to claim 1, characterized in that stiffening element (7) bears, at its upper portion, a latching finger (12) intended to be introduced in a hole (13) of rear wall (2b) of upper (2), this latching finger (12) is mounted movably crossing the internal surface (7b) of stiffening element (7) and ending in an upper transverse opening (9) of this element, in this opening is located a support plate (45) forming a single piece with latching finger (12) and over which passes a tightening cable (6), and this plate (45), and consequently, latching finger (12), are pushed rearwardly, in the direction of the inside of opening (9) by a spring (46) taking support on the wall of the stiffening element, and opposite the shoulder constituted by support plate (7).
  19. Alpine ski boot according to claim 1, characterized in that the internal surface (7b) of stiffening element (7) bears, at its upper portion, a spring blade (47) which is fixed, at its lower portion, to said stiffening element (7), this blade (47) extends along internal surface (7b) and bears a latching finger (12) intended to be engaged in a hole (13) pierced in lower wall (2b) of upper (2) and the upper portion of spring blade (47) is arched so as to be inclined from the base up and from front-to-rear, at a certain distance from the upper end of stiffening element (7).
  20. Alpine ski boot according to claim 1, characterized in that the rear wall (2b) of upper (2) bears a latching finger (16) projecting rearwardly, and which can be engaged in a hollow (17) provided in the internal surface (7b) of stiffening element (7) and latching finger (16) is hollowed with a blind hole (48) in which a mobile piston (49) biased axially towards the outside by a spring (51) is housed, and projecting outside of hole (48) when spring (51) is relaxed.
  21. Alpine ski boot according to claim 1, characterized in that the rear wall (2b) of upper (2) bears a latching finger (16) projecting rearwardly and which can be engaged in a hollow (17) provided in internal surface (7b) of stiffening element (7) and a compression spring (52) is arranged between the external frontal surface of latching finger (16), and the bottom of hollow (17).
  22. Alpine ski boot according to claim 1, characterized in that stiffening element (7) bears a latching finger (13) which is movably mounted vertically with respect to stiffening element (7), this finger (12) being pierced with a threaded hole so as to constitute a nut engaged on a vertical screw (62) mounted rotationally on the upper portion of stiffening element (7) and affixed to an adjustment wheel (63) enabling adjustment of the advance of the upper.
  23. Alpine ski boot according to claim 1, characterized in that stiffening element (7) bears a latching finger (12) which is intended to be engaged in a hole (13) which is formed in an attached element (64) mounted vertically adjustable on the rear wall (2b) of upper (2) enabling adjustment of the advance of the upper.
  24. Alpine ski boot according to claim 1, characterized in that stiffening element (7) bears a latching finger (12) which is affixed to a notched base (65) whose notches (66) cooperate with similar notches (67) borne by the upper portion of the internal surface (7b) of stiffening element (7) to enable adjustment of the advance of the upper, and the base (65) forms a single piece with an upper inclined guiding ramp (68).
  25. Alpine ski boot according to claim 1, the upper of which is constituted by a collar (2), characterized in that stiffening element (7) forms an integral part of an independent roar stiffening spoiler (71) which is journaled, at its lower end, on shell base (1) about a horizontal and transverse axis (8), this rear stiffening spoiler (71) comprising a rear wall (71a) to the upper and lower end portions of which the upper and rear end portions of stiffening element (7) are connected, at least one tie rod (72) extends between the rear wall (71a) of rear stiffening spoiler (71) and stiffening element (7), and the rear wall (71a) of rear stiffening spoiler (71) is extended frontwardly by at least one lateral portion (71b, 71c) whose front edge (71d) constitutes a support for the rear edge of a lateral portion (2e) of collar (2).
  26. Alpine ski boot according to claim 25, characterized in that rear stiffening spoiler (71) comprises two lateral portions (71b, 71c) arranged respectively on both the internal and external sides of the boot.
  27. Alpine ski boot according to claim 25, characterized in that rear stiffening spoiler (71) comprises a single lateral portion (71b, 71c) arranged on the internal side of the boot.
  28. Alpine ski boot according to claims 26 or 27, characterized in that each lateral portion of rear stiffening spoiler (71) comprises an upper portion (71b) and a lower portion (71c) which are aligned vertically or else one of these upper (71b) and lower (71c) portions extends further towards the front than the other portion.
EP91111458A 1990-08-07 1991-07-10 Ski boot Expired - Lifetime EP0470383B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9010078A FR2665617B1 (en) 1990-08-07 1990-08-07 ALPINE SKI BOOT WITH REAR ENTRY WITH HINGE MEMBER ARTICULATED WITH RESPECT TO THE ROD.
FR9010078 1990-08-07

Publications (2)

Publication Number Publication Date
EP0470383A1 EP0470383A1 (en) 1992-02-12
EP0470383B1 true EP0470383B1 (en) 1994-11-30

Family

ID=9399490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91111458A Expired - Lifetime EP0470383B1 (en) 1990-08-07 1991-07-10 Ski boot

Country Status (5)

Country Link
EP (1) EP0470383B1 (en)
JP (1) JPH04244101A (en)
AT (1) ATE114421T1 (en)
DE (1) DE69105403T2 (en)
FR (1) FR2665617B1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0522189A1 (en) * 1991-07-10 1993-01-13 Salomon S.A. Ski boot
FR2692447B1 (en) * 1992-06-22 1995-07-21 Salomon Sa DEVICE FOR LOCKING A SKI SHOE ROD.
FR2726977B1 (en) * 1994-11-18 1997-01-03 Salomon Sa SKI BOOT
EP2116145B1 (en) * 2008-05-08 2012-12-05 OBER ALP S.p.A. Ski boot, in particular for ski mountaineering
ITVR20090068A1 (en) * 2009-05-15 2010-11-16 Sportiva S P A BOOT, PARTICULARLY BUT NOT ONLY FOR SCIALPINISM OR TELEMARK
ITTV20110084A1 (en) * 2011-06-14 2012-12-15 Scarpa Calzaturificio Spa SKI BOOT
ITVR20120009A1 (en) * 2012-01-17 2013-07-18 Sportiva S P A BOOT, PARTICULARLY FOR SCALPINISM OR TELEMARK
FR3015190B1 (en) * 2013-12-20 2016-07-01 Salomon Sas SPORTS SHOE
EP3017711A1 (en) * 2014-11-04 2016-05-11 OBER ALP S.p.A. Off-track ski boot provided with an improved ski/walk selection mechanism
IT202000003110A1 (en) * 2020-02-17 2021-08-17 Ober Alp Spa ALPINE SKIING OR SKI MOUNTAINEERING BOOTS WITH CLOSING MECHANISM AND IMPROVED SKI-WALK SELECTION

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0232218A2 (en) * 1986-02-03 1987-08-12 Fire-Generation Establishment Ski boot
EP0242526A1 (en) * 1986-04-18 1987-10-28 Lange International S.A. Ski-boot

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH518071A (en) * 1968-10-15 1972-01-31 Calzaturificio Nordica Di A & Ski boot

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0232218A2 (en) * 1986-02-03 1987-08-12 Fire-Generation Establishment Ski boot
EP0242526A1 (en) * 1986-04-18 1987-10-28 Lange International S.A. Ski-boot

Also Published As

Publication number Publication date
DE69105403D1 (en) 1995-01-12
FR2665617B1 (en) 1993-06-25
EP0470383A1 (en) 1992-02-12
ATE114421T1 (en) 1994-12-15
FR2665617A1 (en) 1992-02-14
DE69105403T2 (en) 1995-04-20
JPH04244101A (en) 1992-09-01

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