CROSS-COUNTRY SKI BINDING

Abstract

The invention relates to a ski binding (1) configured to receive a boot equipped with a connecting element, comprising: - a two-state locking system, locked and unlocked, - a base configured to be integral with the ski, - a lever, rotatable between two positions, open and closed, the locking system being respectively unlocked or locked when the lever is in the open or closed position, characterized in that it comprises: - a groove formed in the base, - an operating element, comprising: * a shaft passing through the groove and engaging with the lever * a body located on top of the groove, of a shape and dimensions such that it completely covers the groove when the lever is in the closed position. Figure for abbreviation: [Fig. 2]

Description

Title of the invention: CROSS-COUNTRY SKI BINDING technical field

[0001] The invention relates to the field of snow sports, and more specifically to cross-country skiing. It relates more particularly to a binding designed to be mounted on a ski, in order to secure the user's boot to the ski. It also relates more specifically to a particular structure of the means for engaging the binding, or releasing the boot from it. Such a binding is suitable for various cross-country skiing techniques, such as classic or skating. Previous Techniques

[0002] In general, cross-country ski bindings must allow reliable attachment of the boot to the ski, while allowing the heel to lift during the push-off phases, and this while limiting as much as possible the lateral movement of the boot relative to the longitudinal axis of the ski.

[0003] To achieve this, the boots known to date have a transverse axis located at the front of the boot, slightly below and set back from the front end of the boot. This transverse axis is trapped in the binding during skiing and constitutes the pivot point of the boot when the heel is lifted.

[0004] Document DE 94 22 308 U describes an example of a binding suitable for use with this type of boot. More specifically, this binding includes a central hook extending over a sufficient width to lock the boot's pivot point and allow the boot to pivot while remaining in a vertical plane. This hook is associated with a mechanism that allows it to be translated horizontally and longitudinally by the user rotating a knob. The design of this relatively wide hook has the disadvantage of making the binding heavier, with a relatively complex and fragile mechanism.

[0005] An evolution of this type of binding was proposed in document EP 2 184 089, which describes a binding comprising two hooks that cooperate with the axis of the boot. These two hooks are located on either side of the median longitudinal plane of the binding and are attached to a mechanism that allows them to pivot about a transverse horizontal axis. This mechanism is associated with an operating element located at the front of the binding, which is connected to the hooks by means of a lever arm. When moved, this lever arm allows the hooks to retract, permitting the axle to enter grooves provided for this purpose on vertical walls. These vertical walls are positioned so that they fit into complementary grooves formed on the boot. The mechanism is associated with means of recall which are thwarted when the user lifts the lever to release his shoe, so that after releasing this lever, the hooks automatically return to the engaged position, in which the grooves receiving the axle are closed.

[0006] This device has several drawbacks, including the need The lever operated by the user has a significant range of motion to release the hooks. Furthermore, and most importantly, the system is liable to cause unexpected release of the fastener if the vertical force exerted at the axis exceeds the force exerted by the return mechanisms.

[0007] Another solution was proposed in document EP 3 554 656, which also describes a cross-country ski binding equipped with a pair of hooks designed to cooperate with the boot's axle. These hooks are movable in longitudinal translation, under the effect of rotating a button located at the front of the binding. This binding has vertical ribs or walls, extending longitudinally, which cooperate with complementary grooves in the boot's sole to ensure centering of the boot on the binding and the transmission of lateral forces when the boot is pressed against the binding. At the front, these ribs have recesses forming grooves into which the boot's axle can be inserted.The movable hooks can thus move between an engaged position where they close these grooves and prevent the shaft from coming out, and a retracted position, in which the grooves are open and allow the shaft to be inserted and removed.

[0008] This device has the disadvantage of a certain mechanical complexity, since it It is necessary to convert a rotation of the control knob into a translation of the pair of axes. The mechanism must be able to cause the hooks to translate over a sufficient length by simply rotating the control knob, thus requiring the creation of a significant lever.

[0009] Furthermore, snow often accumulates around the moving parts of the binding during cross-country skiing, and can then partially melt and refreeze. As a result, the binding can get stuck in the closed position, or, once the boot is released, it may not be able to close again. Description of the invention

[0010] One of the objectives of the invention is to provide a binding that is simple in design, allowing sufficient movement of the boot locking system by means of a mechanism that integrates easily into the volume of the binding, while ensuring very high reliability, in particular by avoiding the accumulation of snow around the moving elements.

[0011] One of the objectives of the invention is to provide a specific operating member allowing the shoe locking system to be moved from the locked position to the unlocked position and vice versa, this operating member ensuring the sealing of the fastening.

[0012] An additional objective of the invention is to provide an operating element that is easy to mount on the fixing while ensuring sufficient strength.

[0013] To do this, the Applicant has designed a binding for cross-country skis, conventionally intended to receive a boot equipped with a connecting element, such as a transverse axis, located in the front part.

[0014] This fastening comprises: - a two-state locking system, locked and unlocked, in which the boot's connecting element is respectively held and released, - a base configured to be fixed, in the installed state, to the ski, - a lever, movable in rotation between two positions of opening and closing, the locking system being respectively unlocked or locked when the lever is in the open or closed position.

[0015] The fixation is characterized in that it further comprises: - a groove cut into the base, - an operating mechanism, comprising: * a trunk engaged with the lever, passing through the groove, * a body located, in the assembled state, on top of the groove, of such shape and dimensions that it completely covers the groove when the lever is in the closed position.

[0016] Indeed, the closed position of the lever is the position most commonly adopted for binding, and in particular the position exclusively adopted during sports activities. Therefore, the body of the operating mechanism covers the groove most of the time, especially during sports activities, which greatly reduces snow infiltration through said groove.

[0017] The probability of the locking system becoming blocked by snow accumulation is thus greatly reduced.

[0018] The fixing may in particular have one or more of the following characteristics.

[0019] The base may include a receiving portion configured to accommodate the shoe's linking element, and the locking system may then include a retaining element carried by a mechanism allowing the rotation of said retaining element relative to a vertical axis.

[0020] Unlike mechanisms with a moving retaining element in translation, rotational locking offers better resistance to pull-out.

[0021] The retaining element can be formed by two hooks, each having an extremity portion extending in a horizontal plane.

[0022] In particular, the extreme portions of the two hooks can be oriented in opposite directions and more particularly, the hooks can be imaged of each other by rotation of 180° with respect to the vertical axis of rotation.

[0023] The locking system may in particular include a substantially horizontal locking piece, mounted movably in rotation around the vertical axis on the base, said locking piece carrying the hooks and the lever.

[0024] The locking piece is then the only moving part of the mechanism, which does not require mechanical actuation links and transmissions, and is thus simplified.

[0025] The operating member can be connected to the free end of the lever, in particular via the trunk.

[0026] The lower part of the trunk of the operating member has a collar positioned, in the mounted state, under the base forming a retainer.

[0027] In a first embodiment, not illustrated, the groove can be of constant width and the length of the collar in the direction of movement of the operating member, considering the operating member in the operating position, is then less than or equal to the width of the groove measured in the direction orthogonal to the direction of movement of the operating member, while the width of the collar in the direction orthogonal to the direction of movement of the operating member is greater than that of the groove.

[0028] According to another embodiment, the groove may have an insertion window, of a width in the direction orthogonal to the direction of movement of the operating member greater than the rest of the groove, in which the trunk of the operating member can be inserted and removed by vertical translation and the collar is then of a shape complementary to the insertion window when the operating member is in an insertion position, and of a shape retained when the operating member is engaged with the lever.

[0029] The insertion window may in particular be located in a central portion of the groove, the trunk of the operating member being located at the level of said insertion window when the lever is located in an intermediate position between the open and closed positions.

[0030] Thus, in the closed and open positions, which are the only ones adopted in a non-transient manner, the collar and the trunk are not at the level of the insertion window, which reduces the risks of accidental tearing.

[0031] The insertion position of the operating member may, in particular, be, relative to the position where the operating member is engaged with the lever, an oriented position rotating around a vertical axis by an angle between 10 and 200°, especially between 60 and 120° and more particularly between 80 and 100°, and preferably around 90°.

[0032] The insertion window may have a substantially rectangular shape and the collar a shape complementary to the insertion window when the operating member is in the insertion position, with: - a length in the direction of movement of the operating member less than its width in the direction orthogonal to the direction of movement of the operating member, and - a width and a length greater than the width of the groove outside the insertion window.

[0033] The width of the collar in the direction orthogonal to the movement of the operating member, considering the operating member in the operating position, may be greater than the width of the insertion window of the groove measured in the direction orthogonal to the direction of movement of the operating member to form vertical retention of the operating member in the operating position, while the length of the collar, in the direction of movement of the operating member, is less than the width of the insertion window of the groove in the direction orthogonal to the movement of the operating member, to allow the insertion of the operating member in the insertion position through the groove.

[0034] The groove may be at least partially in the shape of a circular arc, or even entirely in the shape of a circular arc, and thus form a guide for the operating member and the lever during its movement between the opening and closing positions.

[0035] The invention also covers skis equipped with such a binding, in particular those where the binding base is mounted on the ski by means of a plate attached to the upper face of the ski and with which the binding base is in a sliding connection to allow translation of the base and adjustment of the longitudinal position of the boot's attachment zone on the ski. Summary description of the figures

[0036] The manner of implementing the invention and the resulting advantages will become clear from the description of the embodiments that follow, supported by the accompanying figures in which:

[0037] [Fig-1] is a rough perspective view of a ski binding according to a first method of embodiment of the invention.

[0038] [Fig.2] is an exploded perspective view of the ski binding of [Fig. 1].

[0039] [Fig.3] is a top view of the base without the operating member,

[0040] [Fig.4] is a bottom view of the operating member,

[0041] [Fig.5] is a side view of the operating member,

[0042] [Fig.6] is a cross-sectional view of the fixing of figures 1 and 2,

[0043] [Fig.7] is a top view of the fastener with the locking system in the locked

[0044] [Fig.8] is a top view of the fastener with the locking system in the unlocked

[0045] [Fig.9] is a bottom view of the fastener with the locking system in the unlocked

[0046] [Fig. 10] is a top view of the fastener being assembled, with the component of maneuver in the insertion position in the groove

[0047] [Fig.11] is a bottom view of the attachment of [Fig.10]. Method of implementing the invention

[0048] Figure 1 is a top perspective view of a fastening embodiment 1 for skiing according to one embodiment of the invention.

[0049] For orientation in space, the longitudinal direction of the user's foot, from heel to toe, is considered longitudinal. This longitudinal direction is generally the same as the direction of travel of the ski, except for surfboards or snowboards.

[0050] The vertical direction is given by gravity, considering the board on a flat horizontal surface. The third direction, orthogonal to the two previous ones, is considered transverse.

[0051] Figure 1 shows, in particular, the front portion, configured to receive a shoe equipped with a connecting element located in the front longitudinal part, towards the user's toes.

[0052] The attachment 1 is in particular configured to be attached to a sliding board such as a ski, in particular a cross-country or Nordic ski, a roller ski board for practice on hard ground, etc.

[0053] The binding 1 comprises a base 3, optionally with a longitudinal position adjustable by longitudinal translation relative to a plate fixed to the upper surface of the board. The base 3 is, however, usually fixed relative to the board, particularly during sporting activity.

[0054] The base 3 here forms a cover, which encloses and closes most of the binding 1. The base 3 has, in particular, two grooves 33, 35 forming receiving portions in vertical walls 32, 34, which receive, in particular, the receiving element of the shoe, a receiving element which is generally in the form of a transverse bar, molded into the sole of the shoe. These two grooves can be formed directly in the base or in a separate part fixed to the base 3. In other words, the base is a part supporting the entire binding composed of one or more parts linked to each other.

[0055] Fig. 2 shows an exploded view of the main components of the fastener 1, and its locking system 5.

[0056] The locking system 5 here comprises a locking piece 51, which can rotate about a vertical axis Z between two angular positions, respectively open and closed, in which the locking system 5 is respectively unlocked or locked.

[0057] The locking piece 51 is substantially flat and horizontal, articulated and fixed vertically to the base 3 by a rivet 53. Alternatively, the rivet 53 may in particular be a screw, a tubular tenon or any other shaft, possibly formed from the material with the base 3. The mechanical connection between the locking piece 51 and the base 3 must not prevent the rotation of the locking piece relative to the base.

[0058] The locking piece 51 comprises two angled lateral arms, each carrying a shoe retaining member in the form of a hook 55. The hooks 55 each have a longitudinal extremity portion. The extremities of the two hooks 55 are oriented in different directions, and the hooks 55 are, in particular, mirrored by a 180° rotation about the vertical axis Z of rotation of the locking piece 51, located, in the assembled state, at the grooves 33, 35.

[0059] When the locking piece 51 is in the closed position, the hooks 55 each close one of the grooves 33, 35 and thus lock the shoe by retaining its axis, which is generally located in the front part of the shoe. The shoe can then only pivot around its axis in the longitudinal vertical plane.

[0060] When the locking piece 51 is in the open position, the hooks 55 do not close the grooves 33, 35, being located, respectively, in front of and behind their respective grooves 33, 35. The user can then remove the boot's receiving element from the grooves 33, 35 or insert it into them to unclip or unclip the skis.

[0061] The locking piece 51 further comprises a longitudinal lever 57, located at the front of said locking piece 51, and terminated at its free end by a substantially vertical finger 59.

[0062] The free end of the lever 57 and the finger 59 are, in the assembled state of the fastener, located at the level of a groove 31 made in the base 3.

[0063] An operating member 7 is connected to the lever 57 and, more specifically, it engages with the finger 59 of the lever 57. This operating member is engaged from the top of the base 3, through the groove 31, to be secured to the end of the lever 57 and allows the user to move the lever 57, and therefore the locking piece 51, between the closed and open positions. In particular, this operating member can be moved manually by the user.

[0064] Other two-state (locked, unlocked) locking systems 5, operated by toggled lever 57 between two closed and open positions, are also envisaged. These alternative locking systems 5 may then include other retaining elements besides the hooks 55 (fingers, rings, etc.).

[0065] Other mechanical elements can ensure the connection between the operating member 7 and the lever 57 (pivot connection in particular) and between the lever 57 and the shoe retention member (hook 55, buckles or arches coming over a finger, etc.).

[0066] The locking system 5 described above has the advantage of having only one mobile locking part 51, without force transmission or actuation return systems, which makes it particularly robust and simple to produce.

[0067] Fig. 3 shows the base 3 in top view, without the operating member 7 and without the locking piece 51.

[0068] The groove 31 is here in the form of a circular arc and guides the rotation of the finger 59 at the free end of the lever 57, as well as the operating member 7, between the open and closed positions. The groove has several zones of different widths, the width being measured in the direction perpendicular to the direction of movement of the operating member 7. The groove 31 preferably comprises an insertion window 37 and two end portions 39, extending transversely from the insertion window 37, the width of the insertion window 37 being greater than or equal to the width of the two end portions 39, these widths being measured in the longitudinal direction of the base 3 or in the direction perpendicular to the direction of movement of the operating member 7 in the groove.

[0069] The narrower portions of the groove 31, which in the described embodiment are the extreme portions 39 of the groove, allow the rotational guidance of the lever 57 from the closed position to the open position and vice versa.

[0070] The operating member 7 is shown in bottom view in [Fig.4] and in transverse side view in [Fig.5].

[0071] The operating member 7 comprises a body 71, located, in the mounted and operating state, on the top of the base 3. The body 71 is of such shape and dimensions that it fully covers the groove 31 when the lever 57 is in the closed position.

[0072] Beneath the body 71 is located a trunk 73, shaped such that it can move within the entire groove 31. In particular, it may have a shape substantially complementary to the narrower portions of the groove, for example, a substantially square cross-section, or even a cylindrical cross-section with a round cross-section. This The trunk 73 of the operating member 7 is terminated by a collar 75, of greater width and length than the trunk 73.

[0073] In the assembled state of the fastener 1 and in the operating state of the fastener 1, the trunk 73 passes through the groove 31 and the collar 75 is located below the groove 31 and forms a restraint against the pulling out by vertical traction along the axis Z, of the operating member 7.

[0074] The trunk 73 of the operating member 7 is located in one of the narrower extreme portions 39 of the groove in the open and closed positions.

[0075] The trunk 73 may in particular have a section adjusted to the extremal portions 39, and particularly to the extremal portion 39 where it is in the closed position, in order to avoid play which may impair the perceived quality of the fixing 1.

[0076] The collar 75 and the body 73 have a recess 77 which, in the assembled state of the fastener 1, receives the finger 59 of the lever 57. The fixing of the finger 59 on the collar 75 can be achieved by any known means of fixing, such as by gluing, riveting, snap-fitting, press fitting, material deformation, for example.

[0077] To allow the insertion of the operating member 7 into the groove 31, the collar 75 is in particular of complementary shape to the insertion window 37, when the operating member 7 is placed in an insertion position (see [Fig.9]).

[0078] This insertion position corresponds to a rotation of the operating member 7 around a vertical axis Z by an angle between 10 and 200°, in particular between 60 and 120° and more particularly between 80 and 100°, and preferably about 90°, as in the presented embodiment of the invention, relative to the operating position of the operating member in which the movement of the operating member allows the locking piece 51 to be moved from the closed position to the open position.

[0079] The insertion of the operating member into the groove 31 is preferably carried out from the top to the bottom of the base 3 of the fixing 1.

[0080] Other embodiments may provide for an operating member 7 in two or more parts with a fit between the parts, one of the parts carrying at least the body 71, the other the collar 75.

[0081] In the embodiment of the invention, the insertion window 37 has a general rectangular shape with a length in the direction of movement of the operating member 7 greater than its width in the direction orthogonal to the direction of movement of the operating member 7.

[0082] The width of the collar 75 in the direction orthogonal to the direction of movement of the operating member 7 and the length of the collar 75 in the direction of movement of the operating member 7 being greater than the width of the groove 31 in its extreme portions 39, outside the insertion window 37, so that the collar 75 blocks the upward movement of the operating member 7 of the fixing in all positions taken by the lever 57.

[0083] The greater the width of the collar 75, the greater the pull-out resistance of the operating member 7, but the greater the length of the insertion window 37, which could impair the guidance of the operating member 7 in the groove 31. Thus, a dimensional compromise must be found for the width of the collar 75 and the length of the insertion window 37.

[0084] The width of the collar 75 in the direction orthogonal to the movement of the operating member, considering the operating member in the operating position, may be greater than the width of the insertion window 37 of the groove 31 measured in the direction orthogonal to the direction of movement of the operating member to form vertical retention of the operating member 7 in the operating position, while the length of the collar 75, in the direction of movement of the operating member 7, is less than the width of the insertion window 37 of the groove 31 in the direction orthogonal to the movement of the operating member, to allow the insertion of the operating member 7 in the insertion position through the groove 31 and in particular through the insertion window 37.

[0085] The particular embodiment of [Fig.4] further provides that the collar 75 has two lateral wings 751, 753, of a width corresponding to the width of the extreme portions 39 of the groove 31, and which pass through said extreme portions 39 during assembly. These lateral wings 751, 753 make it possible to further increase the resistance to pull-out of the operating member 7.

[0086] The insertion window 37 is located in a central portion of the groove 31. The trunk of the operating member 7 is located at the level of said insertion window when the lever 57 is located in an intermediate position between the open and closed positions.

[0087] Indeed, when skiing, with the binding 1 in the locked state, or when the binding 1 is in the unlocked state, the lever 57 is located in two different positions corresponding to two extreme positions in the groove 31, with the trunk 73 located in the extreme portions 39 of the groove 31.

[0088] Thus, the trunk 73 is located at the insertion window 37 only briefly during the transition between the open and closed positions of the lever 57, while it is located most of the time at the narrower extreme portions 39.

[0089] The probability of accidental exit of the operating member 7 through the insertion window is thus reduced.

[0090] In another embodiment not shown, the groove 31 may be of constant width and would not have a specific insertion window 37. To ensure the mounting of the operating member 7 from the top to the bottom of the base, through of groove 31, the operating member 7 would then have a collar of complementary shape with part of the groove.

[0091] In this embodiment where the groove 31 has a constant width, in the operating position of the operating member 7, the length of the collar 75 in the direction of movement of the operating member 7 would then be less than or equal to the width of the groove 31 measured in the direction orthogonal to the direction of movement of the operating member 7, while the width of the collar 75 in the direction orthogonal to the direction of movement of the operating member 7 would be greater than that of the groove 31 in order to block the upward movement of the operating member 7 and ensure resistance to pull-out of this operating member 7.

[0092] Fig. 6 is a cross-sectional view of the front portion of the fastener 1 of the preceding figures, in the longitudinal vertical plane at the level of the lever 57 and the finger 59 securing it with the operating member 7.

[0093] In [Fig.6] elastic means 63 for returning the locking piece 51 to the closed position are shown, here in the form of a helical spring, located in a housing at the rear of the locking piece 51 and in contact with a rear longitudinal finger 61 of the locking piece 51 (see [Fig.2]).

[0094] The elastic means 63 are in particular constrained when the user pushes on the body 71 of the operating member 7 to unlock the fastener 1, and then return the locking piece 51 and the operating member 7 to the closed position in which the fastener 1 is locked.

[0095] Figure 7 illustrates the fastening 1 in the locked state, in top view.

[0096] The operating member 7 is then in a position in which its body 71 completely covers the groove 31, not visible in [Fig. 7]. By thus covering the groove 31, the body 71 of the operating member 7 reduces or even prevents snow from infiltrating under the base 3 forming a hood, particularly at the level of the only moving part, which is the locking piece 51.

[0097] Thus, the accumulation of snow which could eventually block the locking piece is greatly limited, since this position with the groove 31 covered is adopted most of the time, and especially during sports activities.

[0098] Figure 8 illustrates the fastener 1 in the unlocked state, in a top view. Figure 9 is a bottom view of said fastener 1.

[0099] The operating member 7 is then shifted and partially uncovers the groove 31. However, as previously mentioned, this configuration is only very briefly adopted, when putting on and taking off skis or snowboards, the elastic means 63 returning the operating member 7 to the locking position in the absence of actuation by the user.

[0100] It can be seen in particular in [Fig.9] that the trunk 73 is located, in the unlocked position, outside the insertion window 37, at the level of one of the narrower extreme portions 39 of the groove 31.

[0101] Figure 10 illustrates the fastener 1 during assembly, i.e., during the mounting of the operating member 7 in the base 3, when the operating member 7 is inserted into the groove 31 of the base 3, before the addition of the locking piece 51, in top view. Figure 11 is an associated bottom view.

[0102] In [Fig. 11], the operating member 7 is rotated into the insertion position, in particular at an angle of approximately 90° to its operating position. In this insertion position, the collar 75 can be inserted into the insertion window 37 due to their complementary shapes.

[0103] Once the collar 75 has passed through the insertion window 37, the operating member 7 is then rotated 90° to reach its operating position (arrow in [Fig. 10] and [Fig. 11]). The lever 57 can then be secured to the operating member 7. More precisely, the collar 75 of the operating member 7 then engages with the lever 57 via the finger 59 inserted into the recess 77 when the locking piece 51 is attached to the base 3 by means of the rivet 53.

[0104] The fixing 1 according to the invention is thus practical to assemble, simple in its design and is particularly resistant to snow infiltration at the level of its moving parts.

Claims

Demands

1. Ski binding (1) configured to receive a boot equipped with a connecting element located at the front, comprising: - a two-state locking system (5), locked and unlocked, in which the boot connecting element is respectively held and released, - a base (3) configured to be integral, in the installed state, with the ski, - a lever (57), rotatable between two positions, open and closed, the locking system (5) being respectively unlocked or locked when the lever (57) is in the open or closed position, characterized in that it comprises: - a groove (31) formed in the base (3), - an operating element (7), comprising: * a shaft (73) engaging with the lever (57), and passing through the groove (31), * a body (71) located, in the mounted state, on top of the groove (31),of such shape and dimensions that it completely covers the groove (3) when the lever (57) is in the closed position.

2. Fastening according to claim 1, characterized in that the base (3) includes a receiving portion (33, 35) configured to accommodate the shoe linking member, and in that the locking system (5) comprises a retaining element (55) carried by a mechanism (50) allowing rotation of said retaining element with respect to a vertical axis (Z).

3. Fastener according to claim 2, characterized in that the retaining element (55) is formed by two hooks each having an extremity portion extending in a horizontal plane.

4. Fastening according to claim 3, characterized in that the extreme portions of the two hooks (55) are oriented in opposite directions.

5. Fixing according to claim 4, characterized in that the hooks (55) are mirror images of each other by rotation of 180° with respect to the vertical axis (Z).

6. Fixing according to any one of claims 2 to 5, characterized in that the mechanism (5) comprises a substantially horizontal locking piece (51), mounted movably in rotation about the vertical axis (Z) on the base (3), said locking piece (51) carrying the hooks (55) and the lever (57).

7. Fixing according to any one of the preceding claims, characterized in that the lower part of the trunk (73) of the operating member has a collar (75) positioned, in the mounted state, under the base (3) forming a retainer.

8. Fixing according to the preceding claim, characterized in that the groove (31) is of constant width and the length of the flange (75) in the direction of movement of the operating member (7), considering the operating member (7) in the operating position, is less than or equal to the width of the groove (31) measured in the direction orthogonal to the direction of movement of the operating member (7), while the width of the flange (75) in the direction orthogonal to the direction of movement of the operating member (7) is greater than that of the groove (31).

9. Fixing according to claim 7, characterized in that the groove (31) has an insertion window (37), of width in the direction orthogonal to the direction of movement of the operating member (7) greater than the rest of the groove (31), in which the trunk (73) of the operating member (7) can be inserted and removed by vertical translation and in that the collar (75) is of complementary shape to the insertion window (37) when the operating member (7) is in an insertion position and forming a retainer when the operating member (7) is engaged with the lever (57).

10. Fixing according to claim 9, characterized in that the insertion window (37) is located in a central portion of the groove (31), the trunk (73) of the operating member (7) being located at the level of said insertion window (37) when the lever (57) is located in an intermediate position between the open and closed positions.

11. Fixing according to claim 9 or 10, characterized in that the insertion position of the operating member (7) is, with respect to the position where the operating member (7) is engaged with the lever (57), a position oriented in rotation around a vertical axis by an angle between 10 and 200°, preferably of about 90°.

12. Fixing according to claim 11, characterized in that the insertion window (37) has a substantially rectangular shape and in that the collar (75) has a shape complementary to the insertion window (37) when the operating member (7) is in the insertion position, with: - a length in the direction of movement of the operating member (7) less than its width in the direction orthogonal to the direction of movement of the operating member (7), and - a width and a length greater than the width of the groove (31) outside the insertion window (37).

13. A fastener according to any one of claims 9 to 12, characterized in that the width of the flange (75) in the direction orthogonal to the movement of the operating member (7), considering the operating member (7) in the operating position, is greater than the width of the insertion window (37) of the groove (31) measured in the direction orthogonal to the direction of movement of the operating member (7) to form a vertical retention of the operating member (7) in the operating position, while the length of the flange (75) in the direction of movement of the operating member (7) is less than the width of the insertion window (37) of the groove (31) in the direction orthogonal to the movement of the operating member (7), to allow the insertion of the operating member (7) in the insertion position through the groove (31).

14. Fixing according to any one of the preceding claims, characterized in that the groove (31) is at least partially in the shape of an arc of a circle, and forms a guide for the operating member (7) during its movement between the open and closed positions.

15. A board equipped with a binding (1) according to one of the preceding claims

16. Slide board according to the preceding claim characterized in that cWc comprises a plate fixed on the upper surface of the board on which the position of the fixing (1) is adjustable in longitudinal translation.

Images