FR2606657A1 - FIXING FOR BACKGROUND SKIING - Google Patents

Abstract

THE PRESENT INVENTION CONCERNS A BINDING FOR CROSS-COUNTRY SKIING. TO COOPERATE WITH A FRONT END 51 OF A SHOE 2, BINDING 205 INCLUDES A U-SHAPED CALIPER 240 PRESENTING TWO BRANCHES 241 ARTICULATED ON SKI 1 AROUND AN AXLE 3 AND LIKELY TO LATERALLY LATERALLY LATERALLY LATERAL EXTREMITY 51, AND A CROSSING 243 PARALLEL AUDIT AXIS 3 AND LIKELY TO TAKE SUPPORT ON END 51 UNDER THE ACTION OF MEANS 298 OF ENERGIZATION OF CALIPER 240; THE MEANS OF ENERGIZATION 298 ARE AT LEAST PARTIALLY INTEGRATED WITH THE MEANS OF ARTICULATION OF THE BRANCHES 241 IN RELATION TO SKI 1. THE MEANS OF ENERGIZATION OCCUPY A SMALL SIZE, OFFER LITTLE SNOW ENTRY AND OPERATE IN MECHANICAL OPTIMTIONS .

Description

The present invention relates to a fixation

for cross-country skiing.

  More specifically, it concerns a fixa-

  of a type intended to cooperate with an earlier end

  the upper part of a shoe and comprising for this purpose a stirrup

  U-shape with two branches

  said end, respectively on the

  thereof, and a cross member interconnecting

  said branches and likely to overlap

  binds, means of permanent articulation of the branches relative to a ski, about the same axis parallel to said cross member, removable support means of said end

  relative to said branches, towards said axis of articula-

  branches relative to a ski, which removable support means define an axis parallel to said

  crosses, of articulation of said end by ranDort aux-

  branches, and means of energy

  quer auditing an elastic biasing rotation around the axis of articulation of the branches compared

  to a ski, in a definite direction of support for the said

  on said end and support of said end on

said support means.

  In a fastener of this type, described for example by the international patent application WO 8503643, the energizing means of the stirrup ensure both the retention of the protrusion of the shoe in the stirrup, by jamming this protrusion between the crossbar and the support means, and a booster of the boot, via

  from the stirrup to a position in which this shoe

  sure lies flat on the ski; for this purpose, if we

  to a normal direction of movement of the ski and a position

  normal use of the latter, the definite meaning pre-

  cited is oriented back and forth above the axis of articulation of the branches of the stirrup relative to the ski, and the stirrup-is at a level higher than that of this axis of articulation. As a result, a fastener of this type presents

  a simple, easy and economical structure to achieve.

  However, in the case of the fixation of this type in view of the fact of the international patent

  mentioned above, energizing the stirrup calls for a jamming

  be articulated on the crossbar, around a pa-

  aligns with the axis of articulation of the branches with respect to the ski; the strut also supports, forward

  stirrup when referring to the normal direction of movement

  skiing, on a sliding plate attached to the ski and the actual energization is ensured by

  a pin spring wrapped around the axis of articula-

  tion of the strut on the crossbar of the stirrup and acting on the one hand on this cross and on the other hand on the strut; footwear and heaving,

  assuming a switch of the stirrup against the ac-

  springing in such a case by a necessary sliding of the strut on the sliding plate, as well as the pivoting movements of the stirrup consecutive movements of the foot during the

practice cross-country skiing.

  The strut and the sliding plate

  are therefore subject to rapid wear; otherwise

  be, the strut constitutes towards the front of the stirrup

  a protrusion particularly subject to accumula-

  snow, which snow is particularly

  lock between the strut and the sliding plate, as it may block the strut and with it the stirrup,

  that is to say to prevent the operation of the binding.

  The object of the present invention is to

  To this end, the present invention proposes a fixation for cross-country skiing of the type indicated in the preamble, characterized in that the energizing means are at least partially integrated with the articulation means of the branches relative to each other. to a ski,

  to apply to the stirrup said solicitation by the in-

  intermediate of these means of articulation of the branches by

compared to a ski.

  It then becomes possible to remove the strut, bulky and prone to clogging and blocking by snow, the attachment described by the

  aforementioned international patent application, and to

  the means of energization in conditions more satisfactory, mechanically, than the support of

  this strut on the sliding plate.

  Thus, according to an exemplary implementation of the invention, the means of articulation of the branches by

  compared to the ski may comprise a solid straight rod

  said branches and arranged along the axis of

  of the branches relative to a ski and means forming a guide bearing of the rod to the rotation, by

  relation to a skit around the axis of articulation of the branches

  relative to a ski, and the energizing means may comprise at least one flat on said rod and elastically compressible means carried by the bearing means and pressed against said flat;

  then the bearing means and the resilient means

  compressible elements can advantageously be arranged

  inside the ski, for example in a rib of the ski, between the

  your branches, and thus find yourself perfectly sheltered from the snow, only the stirrup forming a projection relative to the ski; the rib can, depending on the case, form an integral part of the ski or be attached to it, just as it can be localized in the

  fixing area or extend forward and / or backward

  of the latter, following a technique known in itself.

  even in the field of ski manufacturing.

  In this first embodiment, the rod may itself constitute the support means of the front end of the boot relative to the branches of the stirrup, particularly simple and economical way to achieve, in which case the axes of articulation of the branches with respect to

  ski and said end in relation to the branches are

  due; these axes can also be distinct, if one provides support means of said end relative to the distinct branches of the rod, as it will appear more

far.

  According to another embodiment of the invention, a branch, or more advantageously each

  branch, is at least partially constituted by a first

  first section of a hairpin spring

  their second section may bear against a ski, in the opposite direction of said determined direction,

  said first and second sections being connected

  by a third spiral wound section

  around an axis defining the axis of articulation of said arm with respect to a ski and applying to the stirrup said bias, and there is provided retaining means of the third section and / or the second section relative to a ski; these retaining means can advantageously be constituted by a trunnion engaged coaxially in

  said third sections and likely to be solid

  rised with skiing, for example by crossing from side to

  a rib incorporated in or attached to it

  ci, in a closely localized way at the level of

  or on a longer ski length; such a structure is particularly simple and economical to achieve, and its size outside the ski is also considerably reduced, compared to that of the binding described by the international application of

WO 8503643.

  This advantage is particularly sensitive if, in the case where each of the branches is constituted by a first section of a respective pin spring, the third sections of the two hairpin springs are located between the branches, that is to say between the first ones

  trunks, and constitute zones of support and removable guidance

  from the anterior end of the boot to the relative rotation

  around the axis of articulation of the branches

  ski, with which the axis of articulation

  lation of said projection relative to the branches; n / A-

  as will appear later, we can also

  provide that the hinge axes of said end relative to the branches and branches relative to the

ski are distinct.

  Other features and benefits of

  the invention will emerge from the description below.

  below, relating to some nonlimiting examples of implementation, as well as the attached drawings which make

  integral part of this description.

  - Figure 1 shows a view, in elevation

  of a first example of fixation according to the invention.

  while the ski is shod, the chosen boot

  by the binding resting flat on the ski.

  - Figure 2 shows a view from the front, in section through a plane marked II-II in Figure 1 and transverse to a longitudinal direction

ski average.

  FIG. 3 shows a sectional view through a plane marked III-III in FIG. 2, constituting a

median longitudinal plane of the ski.

  FIG. 4 illustrates, in a view similar to that of FIG. 1, the booting or the loosening

  in the case of this embodiment.

  FIG. 5 shows a view of the attachment as it appears in FIG. 4, in section through a plane

  identical to the plane indicated in III-III in Figure 2.

  - Figure 6 shows, in a similar view

  to that of Figure 1, a position of this embodiment of

  during the practice of cross-country skiing, the heel (not shown) of the boot

is raised in relation to the ski.

  - Figure 7 shows a second mode of

  fixing of a fastener according to the invention, in a view

  to that of Figure 1 and with an identical position

  than the shoe compared to the ski.

  FIG. 8 shows a view from above of the shoe used in the case of this second embodiment, in section through a longitudinal plane identified in FIG.

VIII-VIII in Figure 7.

  FIGS. 9 and 10 show this second embodiment of a binding according to the invention, in views similar to those of FIGS. 4 and 6 and for respectively identical positions of the boot with respect to the ski.

  - Figures 11 and 12 illustrate a third

  second embodiment of an attachment according to the invention.

  in views similar to those in Figures 1 and 4,

  respectively, and for respectively identical positions

  ticks of the shoe in relation to the ski.

  FIG. 13 shows a fourth embodiment of a fastener according to the invention, in a view

  similar to that of Figure 1 and for an identical position

  tick of the shoe compared to the ski.

  FIG. 14 shows a view from the front, in section through a transverse plane marked in XIV-XIV at the

figure 13.

  FIG. 15 shows a perspective view,

  from behind, from the stirrup of this fourth mode of

lisation.

  FIGS. 16 and 17 illustrate, in views similar to those of FIG. 1 and for the same position of the boot with respect to the ski, fifth

  and sixth embodiments of an attachment according to the

vention.

  Reference will firstly be made to FIGS. 1 to 6, in which a longitudinal ski 1 has been illustrated.

  relative to which a shoe 2 is or may be

  abutting around a transverse axis 3, perpendicular to a median longitudinal plane 4 of the ski, by means of a binding according to the invention. By convention, in the case of this embodiment of the binding as in the case of the embodiments which will be described later, it will be assumed that the ski 1 rests, flat, on a horizontal ground and one will refer to such a position, just as reference will be made to a normal longitudinal direction of movement of the ski, from back to front; Naturally, the level and orientation indications which will appear thereafter do not imply any limitation as to the position in which a fastener according to the invention may be used, and may only be considered as indications.

  relative positioning of the various elements described.

  The ski 1 illustrated by way of non-limiting example

  FIG. 1 is of a type having an upper longitudinal rib 7 extending over most of

  the length of the ski and forming an integral part of it

  ci, between two longitudinal strips 8, 9 of superior face

  re which, in an area located in the immediate vicinity of the attachment 5, can be considered as planar and coplanar; in addition, the shoe 2 has a smooth sole hollowed out with a longitudinal groove,

  continues 11 likely to marry the rib 7 to

  put in the shoe 2 to occupy in particular a position illustrated in Figures 1 and 2, wherein the sole 10 rests flat on the strips 8 and 9 of the upper face of the ski 1, respectively on either side of the rib 7 ; such a design is known in itself, and it would not depart from the scope of the present invention by adopting another design, the rib 7 being for example reduced to a boss located in the immediate vicinity of the attachment 5 and for example reported on the ski with only function to ensure the mounting of the attachment 5 on this ski.

Z606657

  For this purpose, the rib 7, the current section is for example trapezoidal converging upwardly as is apparent from the examination of Figure 2, or the localized boss replacing the rib 7 has, at least locally located at fastening 5, two flank faces 12, 13 parallel to the median longitudinal plane 4 and symmetrical to each other with respect to this plane, mutually connected upwardly by an upper face 14, for example flat and perpendicular to the

  plane 4, while these singing faces 12 and 13 connect

  tooth down respectively to the upper face strip

  8 and the upper face band 9.

  The axis 3 is secant faces 12 and 13 and along this axis, the rib 7 or the boss located the

  replacement is pierced right through with a bore 15 pre-

  sensing a cylindrical peripheral face 16 of revolution about the axis 3 with a diameter such that the bore 15

  completely between the bands 8, 9

  ski 1, on the one hand, and the upper face 14

on the other hand.

  In addition to this transverse bore 15, the rib

  7 or the localized boss that replaces it presents a

  longitudinal guide 17 delimited by a cylindrical peripheral face 18 of revolution about a longitudinal axis

  19 located in the median longitudinal plane 4 of the ski,

  zontalement if one refers to the illustrated position and perpendicular to the axis 3 so that the bore 15 opens into the bore 17 within the rib 7 or localized boss replacing it; in the illustrated example, the diameter of the face 18 is greater than that of the face 16 while remaining limited to a value such that the bore 17 does not reach the upper face 14, but identical diameters could also be adopted , as well as a diameter of the lower face 18

to that of the face 16.

  Respectively on both sides of his

  intersection with bore 15 at distances of at least

  identical to the axis 3, the bore 17 is closed by flat bottom faces 20 and 21, perpendicular to the axis

  19; on these bottom faces 20 and 21 are supported by

  respective helical lots 22, 23 of axis 19, housed in the bore 17 respectively on either side of the axis 3 towards which these springs 22 and 23 are in abutment against respective pistons 24, 25 flat, perpendicular to the axis 19, and guided to slide along this axis to

inside the bore 17.

  Between the pistons 24 and 25 is interposed,

  by prestressing the springs 22 and 23,

  adjustable by means not shown, the realization of which is within the range of the normal abilities of a person skilled in the art, a central portion 26 of a straight rod 27 engaged along the axis 3 in the bore 15,

  with the possibility of rotation around axis 3

  port to rib 7 or localized boss replacing it; for this purpose, the rod 27 presents, respectively from

  and other of its central section 26, two ex-

  trêmes 28 and 29 delimited by respective faces 30, 31 cylindrical of revolution around the axis 3 with a diameter substantially identical to that of the face 16 of

  the bore 15 .; the extreme section 28 thus traverses the

  wise from the intersection thereof with the bore 17 to the face 12 and out of the rib 7 or localized boss replacing it at the level of this face 12 to

  to form a cantilever over the front face band

  higher 8; similarly, the end section 29 traverses the bore 15 of the intersection thereof with the bore 17 to the face 13, beyond which it

  cantilever over the front face band

9 of the ski 1.

  The central section 26 is only

  partially delimited by a cylindrical face of revolu-

  lution about the axis 3 with a diameter substantially identical to that of the bore 15, namely in two

  zones 32 and 33 located in diametrical positions

  opposed to axis 3; he is also

  delimited by two plane faces 34, 35 mutually parallel

  leles and symmetrical to each other with respect to the axis 3, which faces 34 and 35 are connected to the respective cylindrical faces 30 and 31 of the end portions 28 and 29 of the rod 27 by plane faces such as 36, 37, perpendicular to the axis 3, that is to say parallel to the median longitudinal plane 4 of the ski, symmetrical to each other with respect to this plane 4 and mutually distant along the axis 3 of a distance substantially corresponding to the diameter of the face 18 of the bore 17 so as to

  flush the latter along the axis 3.

  Thus, the prestressing of the springs 22 and 23 tending to press the pistons 24 and 25 against the faces

  planes or replats 34 and 35 of the rod 27 defines a

  preferred stable station of the rod 27 with respect to the rib 7 or boss replacing it, about the axis 3 as illustrated in Figure 3; in this stable position, the flats 34 and 35 are perpendicular to the axis

  19 and the faces 36 and 37 of the rod 27, forming shoulder-

  relative to the flats 34 and 35 abut against the pistons 24 and 25 along the axis 3 to pocket the rod

  27 to slide along the axis 3 in the bore 15.

  However, as shown for example in

  FIG. 5, it is possible to angularly move the

  ge 27, about the axis 3, relative to this stable position with additional compression of the springs 22 and 23 by mutual spacing pistons 24 and 25; since the angular travel of the rod 27. compared to

  the stable position is such that the pistons 24 and 25

  are supported on the central section 26 of the rod 27 by respective junctions of the flats 34 and 35 with the localized zones 32 and 33 cylindrical of revolution about the axis 3, and not only by these cylindrical zones of revolution around the axis 3, maintaining the rod 27

  against a sliding along axis 3 is ensured

  re and the springs 22 and 23 apply to the rod 27, by the pistons 24 and 25, an elastic return torque towards

  the stable position shown in Figure 3.

  These conditions correspond to the conditions

  normal use; thus, under normal conditions

  in use, the rod 27 has permanently, respectively on either side of the rib 7 or the localized boss replacing it, two ends 38 and 39, symmetrical to each other with respect to the plane 4, cantilevered respectively above the upper face strip 8 and above the upper face strip 9. By these ends 38 and 39, the rod 27 is

  solidarity, against any relative movement and no-

  especially against a relative rotation around

  the axis 3, with a stirrup 40, U-shaped, comprising

  two branches 41 and 42 connected to each other by

  rectilinear crossbar 43 parallel to the axis 3, at one

  caliber greater than that of this axis 3 under normal conditions of use and, in particular, in line with this axis 3, above the latter, in a position of the stirrup 40 corresponding to the stable position of the stem

  27, described with reference to FIG. 3, as it is

  lustrous in dotted line in Figure 1.

  More precisely, each of the branches 41 and 42 of the stirrup 40, respectively disposed of on each side and

  else of the rib 7 or the localized boss the replacement

  cant, with respect to an interval, has a lower end zone, respectively 44, 45 by which it is secured by any appropriate means, and

  for example by crimping, respectively with the end

  tee 38 of the rod 27 and with the end 39 of this rod 27; at the level of these end zones 44 and 45, the

  two branches 41 and 42 present in the example illus-

  a planar conformation, parallel to the median longitudinal plane 4 of the ski; between these lower end zones 44 and 45 and their integral connection with the cross member

  43, the two branches 41 and 42 have an elbow,

  respectively.46, 47 beyond which they also present

  a flatconversion, however, converging upward, too. well one towards the other than towards the plane 4, in. being symmetrical to each other with respect to this plane 4; with such a conformation, the two branches 41 and 42 extend beyond the crossbar 43, to the respective upper end zones 48, 49 through which they are connected, in solidarity with a spacer 50 having a concavity turned upward and intended to receive the tip of a stick of

  when putting on or taking off, as it is necessary to

  comes out of the examination of Figure 4 and as will be described later; advantageously, the two branches 41 and 42 are made in one piece with the spacer 50, while the crossbar 43 is attached integrally, other embodiment being however possible without

  that we go beyond the scope of the present invention.

  tion; similarly, branches 41 and 42 could

  different forms of the form described without departing from the scope of the present invention,

  and for example having a flat shape, with parallelism

  mutually and vis-à-vis the plane 4, their lower end zones 44, 45 to their upper end zones 48, 49-; also, the transom 43 could

  be constituted by the spacer 50, suitably arranged

  to ensure the function of the transom 43 that will be

described later.

  To cooperate with the rod 27 and the stirrup, the sole 10 of the shoe 2 has an anterior projection 51 which, for the sake of simplicity, will be

  described with reference to the position of the shoe illus-

in Figures 1 and 2.

  It emerges from these figures that the projection 51, essentially located above the rib 7 or localized boss replacing and engaged inside the stirrup 40, between the cross 43 of the latter, its branches 41 and 42 and the upper face 14 of the rib 7 or the localized boss replacing it, is subdivided forwards and downwards in two lugs 52, 53 symmetrical to one another relative to the median longitudinal plane 4 of the ski 1 and intercalating respectively

  between the face 12 of the rib 7 or the boss

  located between the face 13 of the rib 7 or the localized boss and the branch 42 of the stirrup 40, to rely respectively on the

  extreme portion 28 of the rod 27 and on the extreme portion

  29 of the rod 27, in the zones of these extreme portions cantilevered out of the rib 7 or

boss replacing it.

  More specifically, the two legs 52 and 53 have one towards the other, that is to say also towards

  the plane 4, respective faces 54, 55, plane, parallel

  the, symmetrical one of the other compared to the plane 4

* and mutually spaced a distance corresponding sen-

  at the mutual spacing of faces 12 and 13

  pendicular to plane 4, so as to make contact

  sliding faces 54 and 55 with the faces 12 and 13,

  tively; the faces 54 and 55 can advantageously

  constitute extensions of sides of the flank of the

  nide 11 of the sole 10; in the sense of a distance from the median longitudinal plane 4 of the ski, the

  two legs 52 and 53 are delimited, as well as the

  appears from the projection 51, by lateral faces 56, 57 having a freely chosen shape as long as it is suitable to leave, respectively between the face 56 and the branch 41 and between the face 57 and the branch

  42, a continuous game 58, 59 able to authorize the movements

  brackets 40 and the protrusion 51 which are necessary for the boot and the heaving and which will be

described later.

  At the bottom, the faces 54 and 55 are connected

  respectively to faces 56 and 57 by faces of

  60, 61 hollowed out of a respective recess 62, 63, or-

  green down and opening respectively into the

  faces 54 and 56 and in the faces 55 and 57.

  As is more particularly apparent from FIG. 4, with regard to the recess 62 at which the recess 63 is identical in all respects, each of the recesses 62 and 63 is delimited by generatrices parallel to a recess 62.

  axis 64 which coincides with the axis 3 in the illustrated position.

  in Figure 1; more specifically, each of the

  ments 62 and 63 is delimited upwards by a face such

  the semicylindrical piston of revolution about the axis 64 with a diameter substantially identical to that of the faces 30 and 31 of the end portions 28 and 29 of the stem

  27 so that when the shoe occupies its position

  1, the faces such as 65 follow respectively the face 30 of the section 28 and the face 31 of the section 29 over all of the half of these faces 28 and 29 situated above a horizontal plane 66 passing through the axes 3 and 64 then merged; below the plane

  66, supposedly related to the shoe 2, each of the hemi-faces

  cylindrical such as 65 extends downwardly on the one hand, behind the axis 64, by a face such as 67 flat and perpendicular to the plane 66, to connect down to a lower face such as 68 soleplate , fit to rest on the upper face strip such as 8 in the position illustrated in Figure 1, and other

  part, in front of the axis 64, to a face such that 69

  vexed, flexed forward to connect to a-fa-

  this plane such as 70 parallel to the plane 66, between this plane 66 and the underside of sole such as 68; forward, the faces such as 70 are connected to respective front faces 71, 72 of the legs 52 and

  53, which anterior faces are in the example il-

  flat glossy but could have any shape

  not to impede the pivoting movements

  joints of the shoe 2 and the stirrup 40, about the axes 64 and 3 together, which will be described later; likewise, between the faces 54 and 55, above the upper face 14 of the rib 7 or the localized boss the

  replacing, the projection 51 is delimited by an annular face

  73, the shape of which does not hinder

  such movements, and for example plane with a

  suitably chosen for this purpose.

  Upwards, the anterior faces

  71 and 72 of the legs 52 and 53, as well as the faces 54, 55, 56, 57 of the latter and the front face 73 are connected to an upper face 74 of the projection 51, which face 74 is for example flat, parallel to the axis

  64 and, in the position illustrated in FIG.

  towards the rear so as to have an

  75 of which the spacing vis-à-vis the axes 3 and 64 is less than the spacing of the cross 43 vis-à-vis the axis 3, and a rear end 76 whose distance vis-à-vis the axis -vis the combined axes 3 and 64 is greater than the spacing of the cross 43 relative to

  at axis 3; more precisely, a separation of the superficial

  14 of the projection 51, with respect to the axis 64,

  the gap separating the cross member 43 from the axis 3 is reached between the front end 75 of the face

  upper 74 and a zone 77 of the face 74 located directly

  placed in line with the axes 3 and 64 in the posi-

  illustrated in Figure 1. Thus, the operation of the attachment 5

  which has just been described is the following.

  It will be assumed that, initially, the ski 1 is loosened, that is to say that the shoe 2 is absent; the attachment 5 then occupies its position shown in phantom in Figure 1, in which the crossbar 43 is placed directly in line with the axis 3, because the

  pistons 24 and 25 and the rod 27 can occupy their posi-

  illustrated in Figure 3, corresponding to a lower

  solicitation of the springs 22 and 23.

  To put on the ski, the skier applies the

  tip of a stick in the concavity of the

  toise 50 of the stirrup 40, to deliberately pivot it forwards and downwards about the axis 3, as shown schematically in Figure 4 by an arrow 78; to this movement naturally corresponds a rotation of the

  rod 27 in the same direction 78, which causes a

  pistons 24 and 25 under the action of the central section 26 of the rod 27, that is to say an increase in the compression of the springs 22 and 23 which, naturally,

  tend to return the rod 27 and the stirrup 40 to the position

  illustrated in phantom in Figure 1.

  When the movement of the stirrup 40 in the direction 78 has reached a sufficient amplitude, the user can engage, by a downward movement of the shoe 2 to the ski 1, the recesses 62 and 63 respectively on the end sections 28 and 29 of the rod 27, between the branches 41 and 42 of the stirrup 40, until

  the axes 64 and 3 are merged; the hemicircu-

  Thus, the ends 65 and 62 of the two recesses 62 closely match the respective upper halves of the faces 30 and 31 of the end portions 28 and 29 of the shank 27, with the possibility of relative rotation around the ends.

  axes 64 and 3 combined but without the possibility of

  relatively relative to the axis 3 because the faces 54 and 55 respectively apply against the faces 12

and 13.

  If, then, the skier stops soliciting the spacer 50 with the point 52 of the stick 53, the springs 22 and 23 tending to relax cause, by acting on the central section 26 of the rod 27, a pivoting of

  the yoke 40 in a direction 79 reverse direction 78, that is to say

  say towards the position shown in phantom in Figure i; during this return movement, the cross 43 passes without difficulty the front end 75 of the upper face 74 of the projection 51, but abuts on

  this face 74 between its end 75 and its zone 77,

  precisely where the spacing of the face 74 vis-à-vis the axis 64 corresponds to the spacing of the crossbar 43 vis-à-vis the axis 3; the attachment 5 is then in the state shown in solid lines in Figure 1, in which, from the axis 3, the stirrup 40 is slightly leaning towards

  the front; in this position, the springs 22 and 23 con-

  continue to apply via the pistons 24 and and the central section 26 of the rod 27 a pair of

  reminder of stirrup 40 in direction 79.

  When practicing cross-country skiing,

  the skier raises his foot relative to the ski, the stirrup 40 rests

  immobilized relative to the projection 51 because the cross member 43 abuts against the upper face 74 of the projection 51 in the direction 79 due to the action of the springs 22 and 23; therefore, the stirrup 40 accompanies the rotational movements of the projection 51 relative to the ski around the axes 64 and 3 together, ensuring the maintenance of a centripetal support, with reference to the axis 3, of the protrusion 51 on the end sections 28 and 29 of the rod 27 by the recesses 62 and 63; it is understood that, thus, the shoe 2 and the stirrup 40 can acccplir only joint rotation movements around the axes 3 and 64 merged, with respect to the ski 1;

  the support of the faces 54 and 55 against the faces 12 and 13 as-

  sure also a lateral support of the shoe 2

compared to the ski.

  When he wishes to take off, the skier repo-

  get your feet flat on the ski, as illustrated in the

  FIG. 1, which allows stirrup 40 to take up its po-

  illustrated in solid lines in this figure; in application

  when the tip of its stick pushes in the direction 78 to the spacer 50, the skier can then cause tilting of the stirrup 40 until the face 74 of the projection 51 is released from the crossbar 43, which then allows, by lifting the foot, to clear the recesses 62 and 63 with respect to the end portions 28 and

29 of the stem 27.

  Reference will now be made to FIGS. 7 to 10, where the ski 1 and its various elements are found identically and under the same references, as well as the rod 27, weighed and elastically biased, at the same time. rotation about a transverse axis 3, in a manner identical to that described with reference to FIGS. 1 to 6, and

  more particularly in Figures 3 and 5.

  There is also in the case of this embodiment a stirrup 140 in all respects comparable to the stirrup 40 and having, like the latter, two branches.

  141 and 142 having lower end zones such

  the 144 integrally connected to the ends such as 38 of the rod 27, respectively from and

  on the other hand, rib 7 or the boss replacing it, the

  which branches 141 and 142 are also mutually rigidly connected at a level higher than

  that of the axis 3, by a cross 143 in all respects

  at transom 43 and at their upper ends

  such as 148, by a spacer 150 in every respect

  parable at the spacer 50; however, unlike

  what has been described earlier and illustrated more particularly

  2, the branches 141 and 142 of the yoke 140 are plane, parallel to the median longitudinal plane of the ski being disposed symmetrically to each other with respect to this median longitudinal plane as has been said. branches 41 and 42; in particular, the branches 141 and 142 present towards each other, likewise

  only to plane 4, respective faces 180 and 181

  nes, parallel to plane 4 and symmetrical to each other

in relation to this one.

  As has been said about the way in which

  FIGS. 1 to 6, the springs acting, in the in-

  inside the rib 7 or the localized boss the replacement

  on a central section of the rod 27 tend to

  elastically conducting the stirrup 140 in a position not

  illustrated, in which the cross 143 is placed directly

below the axis 3.

  In the case of the embodiment of FIGS. 7 to 10, there is also a boot 102 that is comparable to shoe 2 in all respects, in particular in that it has a soleplate 110 hollowed out with a longitudinal groove 111 suitable for fitting onto the rib 7, in particular in a position, illustrated in FIG.

  wherein the shoe 102 lies flat on the

  longitudinal upper face such as 8 of the

ski 1.

  Like the shoe 2, the shoe 102 pre-

  sits forward an anterior projection 151 performed

  one piece with the sole 110, which protrudes

  151 is used for the removable connection of the shoe 102

with stirrup 140.

  For this purpose, the projection 151 is delimited,

  in the sense of a distance from the longitudinal plane

  median tudinal 4 of the ski if we assume the shoe 102 connected thereto by the attachment 105, for example in

  the position illustrated in FIG. 7, by two lateral faces

  planar members 156, 157, parallel to the plane 4, symmetrical to each other with respect to this plane and spaced apart by a distance substantially equal to the distance between the faces 180 and 181 of the branches 141 and 142 of

  stirrup 140 so that, as it appears no-

  In Figure 8, the projection 151 may be interposed

  between the branches 141 and 142, with sliding contact

  faces 156 and faces 180 and 181 respectively

  is lying. Downwards and forwards, respectively, the projection 151 is delimited by a side face 173 whose shape is indifferent since it does not hinder

  not the joint pivoting movements of the shoe.

  sure 102 and the attachment 105, relative to the ski 1, which will be described later; for example, downwards, the face 173 has a flat shape and extends a face (not referenced) delimiting the groove 111 of the sole upwards while, towards the front, this face 173 is flexed convexly for present a form

ascending forward.

  Upwardly, the projection 151 is delimited by an upper face 174 in every respect comparable to

  face 74, as to how it cooperates with the work

  143 and its positioning, for this purpose, with respect to a hinge axis 182 of the projection 151

  on the branches 141 and 142 of the stirrup 140.

  This axis 182 is, in the case of the embodiment of FIGS. 7 to 10 and unlike what has been described with reference to the embodiment illustrated in FIGS. 1 to 6, dissociated from the articulation axis 3 of the

  branches 141 and 142 on ski 1, and more precisely if-

  killed parallel to this axis, at an intermediate level between the respective levels of the axis 3 and the cross 143, above the level of the face 14 of the rib 7 or the localized boss replacing it, in the position of the caliper 140 illustrated in Figure 7 and in any position accessible by the bracket 140 under normal conditions of use of the fastener 105; relative to the axis 182, the face 174 progressively moves away from an anterior end zone 175 of connection with the face

  173 to a posterior end zone 176 of

  cord with the shoe 102, a value smaller than the spacing of the cross 143 143 with respect to the axis 182 to a value greater than this spacing, which

  value is reached between zone 175 and a zone 177

  killed directly above the axis 182, above it, when the shoe 102 rests flat on the ski as illustrated in Figure 7 and cooperates with the attachment 105; then, the axis 182 is advantageously

  placed itself in line with the axis 3, while crossing

  143 that the stirrup 140, biased by the springs, tends to return to the axis of the axis 3 is located in front of

  the common vertical plumbs of axes 3 and 182.

  On the branches 141 and 142 of the stirrup 140,

  the axis 182 is defined by two notches 183, 184, respec-

  tively, open in an upward direction towards the

  re if we refer to the position shown in the figure

  7, and tending to approach the cross 143.

  Each of the notches 183 and 184 is delimited

  generators parallel to the axis 182 which defines

  between this axis 182 and axis 3, for each notch

  183, 184, an area such as 186 hemi-cylindrical of revolu-

  lution about the axis 182, not shown, or in the form of revolution cylinder sector about the axis 182 with an angular development less than 180 but nevertheless close to 180 as illustrated, while in the meaning of a distance upwards compared to

  axes 3 and 182, each notch 183, 184 widens progressively

  in the direction 185, until its exit back

  branches 141, 142 of the stirrup 140.

  Complementarily, along an axis

  with the axis 182 in the position illustrated in the figures

  7 and 8, the projection 151 carries in solidarity, for example

  by imprisoning in the material constituting it, a rod 187 having areas 188 and 189 cantilever respectively relative to the face 156 of the projection 151 and with respect to the face 157 of this projection, which

  cantilevered areas 188 and 189 have

  respective cylindrical of revolution about the axis coincident with the axis 182 with a diameter substantially similar to that of the bottom zones such as

  186 of the recesses 183 and 184 so that, by

  and the end zones 188 and 189 of the rod 187 on the bottom regions such as 186 of the notches 183 and 184, towards the axis 3, establish a contact for guiding the projection 151 to the rotation about the axis. 182 with respect to the branches 141 and 142 of the stirrup 140; such contact is established in particular in the position illustrated in the figures

  7 and 8, in which the cross 143 furthermore takes

  on the face 174 of the projection 151 between the zones 175

and 177 of it.

  With the provisions just described, the operation of the fastener is as follows. It is assumed that, initially, the ski 1 is loosened, so that the stirrup 140 occupies a position in which the cross member 143 is located in line with the axis 3, under the action of the springs housed in the rib

  7 or in the localized boss replacing it.

  So, to put on the ski, the user

  the driver applies a thrust in the direction 78, that is to say forward and downward, to the spacer 150 of the stirrup 140 to bring the notches 183 and 184 in a position in which the direction 185 is approximately vertical, as

  illustrated in Figure 9; he then becomes particularly

  easy, by a downward movement of the shoe

  102, to insert the projection 151 between the branches 141 and 142 and

  to bet the extreme zones 188 and 189 of the tiae 187

  in notches 183 and 184, until the

  the 110 of the shoe 111 rests on the ski by the ban-

  side faces such as 8 thereof; then, the user releases the spacer 150 from the tip of his stick and, by a slight movement of the shoe 102 rearwardly with respect to the ski 1, allows the stirrup to return to the position illustrated in FIG.

  the action of the springs; this brings about the coming of

  143 abuts on the face 174, and thereby locks the projection 151 between, on the one hand, the cross 143 and on the other hand, the bottom areas such as 186

notches 183 and 184.

  Then, during the practice of skiing, any movement of extension of the foot results in a joint pivoting of the shoe 102 and the stirrup 140 about the axis 3 relative to the ski 1, in the direction 78 when the

  heel moves away from the ski 1 and in the direction 79 when the

  lon back on the ski 1, as shown in Figure 10.

  To remove, the user brings the shoe flat on the ski 1, which brings the stirrup 140 to its position shown in Figure 7; then, from the tip of the stick, the user again applies a thrust in the direction 78 to the spacer 150 by slightly moving the foot on the shoe, which frees the face 174 of the action of the cross 143 and allows the clearance of the end zones 188 and 189 of the stem 187, forming a trunnion, vis-à-vis the two notches 183 and 184 by a movement-upward movement of the boot relative to

skiing.

  The embodiment of FIGS. 11 and 12 is distinguished exclusively from the embodiment of FIGS. 7 to 10 by the fact that the notches carried by

  the branches of the stirrup and the trunnions worn

  the front of the shoe are replaced respectively by a journal integral with the arms of the stirrup

  and by a notch carried by the protrusion of the shoe.

  As a result, the elements described with reference to FIGS. 7 to 10, with the exception of the notches 183 and 184 and the rod 187 defining the trunnions, are found in FIGS. 11 and 12, under the same references.

  by its end zones 188 and 189; we find, however,

  the hinge axis 182 of the anterior projection 151 of the boot 102 on the branches such as 141 of the yoke, in the position already described with respect to the hinge axis 3 of the branches such as 141 on

  the ski 1 and relative to the cross 143 connecting rigidly

  parallel to axis 3, the two branches

than 141 of the caliper 140.

  In the case of this embodiment, the two branches such as 141 are also integrally connected, along the axis 182 parallel to the axis 3, by a pin 190 forming a trunnion, which has a cylindrical peripheral face of revolution around of axis 182; additionally, the face 173 of the protrusion

  151 of the present shoe, close to its connection

  with the groove 111 of the sole 110 of the shoe 102, a notch 191 open in a direction 192 descending backwardly with reference to the illustrated position

  in Figure 11, that is to say in the sense of a distance

  relative to the face 174 and relative to the cross 143 when the latter cooperate as illustrated

in Figure 11.

  The operation of this binding is in

  any point similar to that of the fixation described in

  FIGS. 7 to 10, particularly with regard to

  booting and heaving by application of a

  born, in. the direction 78, to the spacer 150 by means of the tip of the ski pole to clear the cross 143 forwards relative to the upper face 174 of the

projection 151.

  Reference will now be made to FIGS.

  , where we find ski 1 identical, with this exception

  it does not have a bore corresponding to

  the bore 17 while, however, the bore 15 is

  Servé; therefore, with the exception of the bore 17 and its contents, we find in Figures 13 to 17, under the same references, the elements of the ski 1 described about

  of the embodiment illustrated in Figures 1 to 6.

  Along the axis 3, the bore 15 receives, from

  way this time solidarity of the ski for example by rubbish

  a bull 293 with a peripheral fawn 294

  cylindrical of revolution around the axis 3 with a dia-

  meter substantially identical to that of the bore 15, and

  projecting from either side of the rib 7,

  3, so as to have cantilever end zones 295 and 296 respectively with respect to face 12, above the upper face strip 8,

  and with respect to the face 13, above the band of

  upper oe 9; the trunnion 293 is integrally united

  ski and, contrary to the stem 27 of the method of

  illustrated in Figures 1 to 6, does not constitute a means of

energizing the fastener 205.

  In the case of this embodiment, this fastener 205 is made by winding a

  wire 297, forming a spring, in symmetrical form

  to the median longitudinal plane 4 of the ski, which appears more particularly in FIG.

  In the folded state, the wire 197 has a section

  rectilinear 243, perpendicular to the plane 4 and occupying with respect to the axis 3 the position described about the transom 43 of the embodiment illustrated in Figures 1 to 6, to play the role of this cross 43 in the case

  of the embodiment illustrated in Figures 13 to 15.

  This section 243 mutually connects two equally straight sections 241 and 242, mutually parallel and perpendicular to the section 243; these two sections 241 and 242, located respectively from

  of the median longitudinal plane 4 of the ski 1, symmetrical-

  each other relative to this plane 4, are in all respects comparable to the limbs 41 and 42 of the stirrup 40 described with reference to FIGS. 1 to 6, and form with

  the section 243 a stirrup 240 itself at all points compared

in the stirrup 40.

  In contrast to its connection with the

  243, each of the sections 241 and 242 is wound helically.

  coldly around the same axis, namely axis 3, with

  a corresponding inner winding diameter

  to the diameter of the peripheral face 294 of the journal 293 whose sections as well. 298 and 299 respectively envelop the end zone 295 and the

  extreme zone 296, with freedom to the relative rotation

turn of the axis 3.

* The two wound sections 298 and 299 pre-

  feel the same number of turns, which number may be 1 or more, and for example 3 complete turns in the illustrated example; the two wound sections 298 and 299 are integrally located between the sections 241 and 242, so as to interpose respectively between the section 241 and the face 12 and between the section 242 and the face 13 respectively bearing against the faces 12 and 13, along the axis 3, to prevent any movement of the stirrup

  240 parallel to this axis 3 relative to the ski 1.

  Each of the sections wound helically 298

  and 299 connects itself to a straight section ex-

  300 and 301 respectively, facing forwards with respect to the trenches 241 and 242, approximately 90 relative to these sections 241 and 242, to bear along the rib 7 respectively against the upper face strip 8 and against the upper face band 9

in the sense 78.

  It is easy to see that the sections 241, 298, 300 on the one hand, 242, 299, 301 on the other hand constitute

  two pinned springs, if the section is rotated

  243, forming a cross member, in the direction 78 from a

  position in which sections 241 and 242 are sensi-

  perpendicularly to the upper face strips 8 and 9 of the ski 1, tend to elastically bring the section 243 in the direction 79, to such a position of the branches

  241 and 242; although journal 293 is a means of

  particularly simple and effective to retain the wound sections 298 and 299 in a position in which their winding axis is fixed relative to the ski 1, other means acting at the level of the coiled sections 298

260,665?

  and 99, either at sections 300 and 301 could

be used for this purpose.

  It is readily accepted that the fastener 205 constituted by the folded wire 297 retained by the rod 293 can cooperate, in a manner quite identical to that described with regard to the attachment 5 illustrated in FIGS. 1 to 6, with the anterior projection 51 of the shoe 2; this anterior projection 51 is in all respects identical to what has been described with reference to FIGS. 1 to 6, the shape of its lateral faces 56 and

  57 may, however, be flat in view of the conformity

  mation of the sections 241 and 242 of the wire 297 constituting the branches of the stirrup 240, to respect the games 58 and 59 described with respect to the embodiment of Figures 1 to 6; in the case of the embodiment of Figures 13 to 15, the wound sections 298 and 299 of the wire 297 replace the rod 27 as a removable support of the recesses 62, towards the axis 3, relative to the branches 241 and 242 to ensure

  guiding the projection 51 to the rotation around the branches

  241 and 242 about the hinge axis 3 of these branches 241 and 242 relative to the ski 1; for this purpose, the cylindrical face 65, 66 of each of the recesses 62, 63 has a diameter substantially corresponding to the diameter

  outside the winding sections 298 and 299.

  To make it easier to put on and take off

  of the fastener 205, by applying a thrust in the direction 78 by means of the tip of a ski pole (not shown), a part 250 having a concavity turned upwards and in the direction 79 is advantageously reported integrally on the section 243 forming a cross member,

  to play the role of the spacer 50 of the embodiment

  described with reference to Figures 1 to 6.

  Naturally, instead of articulating the

  binds the shoe on the branches of the stirrup about the axis of articulation of the branches of the latter relative to the ski as illustrated in Figures 13 to 15, can also articulate the projection of the shoe on the branches of the stirrup about an axis parallel to the axis of articulation of these branches relative to the ski even when the stirrup is constituted by a folded wire 297, as is apparent from the examination of Figures 16 and 17 o is found under the same reference.102 respectively the shoe shown in Figures 7 to 10, that is to say a shoe whose anterior projection 151 151 sole has two trunnions such as 188, and the shoe shown in FIGS. Figures 11 and 12, the anterior projection 151 has a lower notch 191; in the case of these two embodiments, each of the sections 241 and 242 of the folded wire 297, completely similar to what has been described with reference to FIGS. 13 to 15, is at least

  partially embedded in a rigid piece 340 which,

  tagged, present at a level higher than that of the section 243, that is to say the opposite of this section by

  compared to axis 3, a spacer 350 acting as the

  tretoche 50 described with reference to the illustrative embodiment

  FIGS. 1 to 6; this spacer 350 connects

  two branches, such as 341 each of which

  ge, and houses at least partially one respective sections 241 and 242 of the wire 297; in the case of the embodiment of FIG. 16, the two branches such as 341 have the. notches such as 183 described in

  reference to Figures 7 to 10, to serve as support for

  defined rillons 188 and 189 of the rod 187, and guide them to the rotation about the axis 182, defined as above, with respect to the branches such as 341 of the workpiece 340 and with respect to the branches 241 and 242 of the stirrup 240; in the case of the embodiment of Figure 17, the branches such as 341 of the part 340 integrally bear the pin forming journal 190, along the axis

  182 positioned in the manner previously described, for

  cevoir the notch 191 of the projection 151 of the shoe 102 and serve as a support with the possibility of rotation

relative to the 182 axis.

  It will be understood that the fasteners 305 illustrated in FIGS. 16 and 17 function in exactly the same manner as has been described with regard to the fasteners 105.

  illustrated respectively in Figures 7 to 10 and 11 and 12.

  Naturally, the modes of implementation of the invention which have just been described are only non-limiting examples, and a person skilled in the art can design other embodiments that are not outgoing.

  not within the scope of the present invention.

  In particular, it is possible to adopt without departing from the scope of the present invention a mode of support different from the stirrup on an anterior end zone of the shoe, for example by replacing the cross member of the stirrup by any means equivalent provided on the latter to support similarly on an end zone

  anterior of the shoe and / or by suppressing the

  the shoe to perform the previously described functions of this projection directly by

  the anterior end proper of the shoe.

Claims (18)

  1. Cross-country ski binding, intended for -   cooperate with an anterior end (51, 151) of a shoe   sour (2, 102) and having for this purpose a U-shaped stirrup (40, 240, 340) having two branches (41, 42, 141, 142, 241, 242, 341, 342) capable of laterally extending along said end (51 151), respectively on either side thereof, and a cross member (43, 143, 243) mutually connecting said branches (41, 42, 141, 142, 241, 242, 341, 342) and capable of overlap said projection   (51, 151), articulating means (15, 27, 293, 298, 299)   permanent branch (41, 42, 141, 142, 241, 242, 341, 342) relative to a ski (1), about a same axis (3) parallel to said crossbar (43, 143, 243) , means   (28, 29, 183, 184, 190, 298, 299) of removable support of the-   said end (51, 151) relative to said branches (41, 42, 141, 142, 241, 242, 341, 342) towards said axis (3) of articulation of the branches (41, 42, 141, 142, 241 , 242, 341, 342) relative to a ski (1), which means (28, 29, 183, 184, 190, 298, 299) movable support define an axis (3, 182), parallel to said cross (43, 243,   343), articulating said end (51, 151) with respect to   port to said branches (41, 42, 141, 142, 241, 242, 341, 342), and energizing means (22, 23, 27, 298, 299)   to apply to said stirrup (40, 140, 240, 340) a request   elastic quotation of rotation about the axis (3) of Ar-   linking the limbs (41, 42, 141, 142, 241, 242, 341, 342) with respect to a ski (1), in a given direction (79)   supporting said crossbar (43, 143, 243) on said end   mité (51, 151), and support of said end (51, 151) on -   said support means (28, 29, 183, 184, 190, 298, 299),   characterized in that the energy means   tion (22, 23, 27, 298, 299) are at least partially integrated with the articulation means (15, 27, 293, 298, 299) of the branches (41, 42, 141, 142, 241, 242, 341, 342) with respect to a ski (1), for   apply to the stirrup (40, 140, 240, 340) said solicitation by the in-   intermediate means (15, 27, 293, 298, 299) for   (41, 42, 141, 142, 241, 242, 341, 342) with respect to a ski (1). 2. Fastening according to claim 1, characterized in that the shoe comprises an anterior end protrusion (51,   151) for cooperating with said fixation.   3. Fixing according to any one of the claims   1 and 2, characterized in that the means (15, 27, 293, 298, 299) of   branches (41, 42, 141, 142, 241, 242, 341, 342) with   wearing a ski (1) carries a rod (27) rectilinear solidary des-   branches (41, 42, 141, 142, 241, 242, 341, 342) and disposed of   the axis (3) for articulation of the limbs (41, 42, 141, 142, 241, 242, 341, 342) relative to a ski (1) and means (7, 15) forming a guide bearing of the rod (27) rotates, with respect to a ski (1), about the axis (3) of articulation of the limbs (41, 42, 141, 142) with respect to a ski (1), and in that the energizing means (22, 23, 27, 298, 299) carry at least one flat (34, 35) on said rod (27) and resiliently compressible means (22, 23, 24, 25) carried by the bearing means (7, 15) and supported against said mreplat (34, 35).   4. Fastening according to claim 3,   characterized in that the elastically compressible means (22, 23, 24, 25) comprise a piston (24, 25) mounted to   radial sliding, with reference to the axis (3) articula-   branching (41, 42, 141, 142) relative to a ski (1), relative to the bearing means (7, 15),   and at least one resilient biasing spring (22, 23)   centripetal of said piston (24, 25).   5. Fixing according to any one of   claims 3 and 4, characterized in that the means   (7, 15) are housed inside a rib (7) of the ski, between said legs (41, 42, 141, 142). 6. Fixing according to any one of   Claims 3 to 5, characterized in that the means   elastically compressible (22, 23, 24, 25) are housed inside a rib (7) of the ski (1), between said branches (41, 42, 141, 142).   7. Fastening according to any one of claims 1 and 2,   characterized in that a branch (241, 242) is at least partially constituted by a first section (241, 242) of a hairpin spring further having a second section (300, 301) capable of being supported relative to a ski (1) in direction (78) inverse to said determined direction (79), said first and second sections (241, 242, 300, 301) being mutually connected by a third section   (298, 299) wound helically around a defined axis   linking the axis (3) of articulation of said limb (241, 242) with respect to a ski (1) and applying to the stirrup (240) said urging, and in that means (293) are provided; ) of the third and / or second   section (298, 299, 300, 301) with respect to a ski (1).   8. Fastening according to claim 7,   characterized in that the other branch (241, 242) is at least partially constituted by a first section (241, 242) of another pin spring furthermore having a second section (300, 301) capable of being supported by in relation to a ski (1) in direction (78) inverse to said determined direction (79), said first and second sections (241, 242, 300, 301) of the other pin spring being mutually connected by a third section (298 , 299) wound helically around an axis defining the hinge axis (3) of said other limb (241, 242) relative to a ski (1) and applying to the stirrup (240) said solicitation.   9. Fastening according to claim 8,   characterized in that said pinned springs are con-   staked by the same wire (297) defining in   in addition to said crossbar (243), by a section (243) connecting   mutually said first sections (241, 242).   10. Fixing according to any one of   claims 8 and 9, characterized in that the means   retaining means (293) comprise a trunnion (293) engaged coaxially in said third sections (298, 299)   and capable of being secured to the ski (1).   11. Fixing according to any one of   Claims 1 to 10, characterized in that said axes articulation (3) are merged.   12. Fastening according to claim 11 in   combination with any one of claims 3 to   6, said end (51) having a hook shape, characterized in that the rod (27) has at least one   area (28, 29) for releasably supporting and guiding said end   relative rotation (51) about the axis (3) of   culation of the branches (41, 42) relative to the ski (1), with which the axis (3) of articulation of said   end (51) with respect to said branches (41, 42).   13. Fastening according to claim 12,   characterized in that the shank (27) has two of said   areas (28, 29) of support and removable guide, respecti-   on either side of a rib (7) of the ski (1), between said limbs (41, 42). 14. Fastening according to claim 11 in   combination with any one of claims 8 to   , said end (51) having a hook shape, characterized in that said third sections (300, 301) of pin springs are located between said legs (241, 242) and constitute zones of support and removable guide of said end (51) to the relative rotation about the axis (3) of articulation of the branches (241, 242) with respect to the ski (1), with which the axis (3) of articulation of said end (51) by   related to said branches (241, 242).   15. Fixing according to any one of   claims 1% 10, characterized in that said axes   articulation (3, 182) are distinct.   16. Fastening according to claim 15,   characterized in that the axis (182) of articulation of said end (151) with respect to said branches (141, 142,   241, 242, 341, 342) is located between the axis (3) articula-   said branches with respect to a ski (1) and said cross (143, 243).   17. Fixing according to any one of   claims 15 and 1.6, characterized in that each   branch (141, 142, 341, 342) has, along said axis (.182) articulation of said end (151) relative   at said branches (141, 142, 341, 342), a notch   pective (183, 184) open towards said cross member (143, 243)   and able to receive coaxially, removably   ble, a pin (188, 189) of said projection (151).   18. Fixing according to any one of   claims 15 and 16, said extract. (151) presenting   a hook shape, characterized in that each branch (141, 142, 341, 342) has along said axis (182)   articulating said end (151) with respect to   said branches (141, 142, 341, 342), a journal (190)   capable of removably receiving said té (151).