Adjustable length crampon

Abstract

The adjustable-length crampon (100) for footwear includes a connecting element (104), a first part (101), and a second part (103) connected by the connecting element (104). The crampon (100) includes means (105) for adjusting the length of the crampon (100) and a locking device (107) configured to maintain the length adjustment of the crampon (100). The crampon (100) is configured such that, when the locking device (107) is in an unlocked position, a force applied to the crampon (100) induces an automatic transition from a coupling configuration of the adjustment means (105) with the connecting element (104), ensuring length adjustment of the crampon (100), to a discoupling configuration of the adjustment means (105) with respect to the connecting element (104), said force being applied to adjust the length of the crampon (100) by reducing the crampon's length. Figure to be published with the abbreviation: Fig. 1

Description

Title of the invention: Adjustable length crampon Technical field of the invention

[0001] The invention relates to the field of crampons, particularly for mountaineering. More specifically, the invention relates to a crampon that is adjustable in length for a shoe. Prior art

[0002] A crampon for footwear, particularly of the ice crampon type for mountaineering, is known from the prior art. It comprises a front frame and a rear frame connected by an elongated connecting bar having holes spaced according to the length of the connecting bar. The crampon includes adjustment means for setting its length. The adjustment means include a pad for insertion into one of the holes in the connecting bar and a flexible tab attached to the rear frame. The pad is arranged at one end of the tab, and the crampon's length is adjusted by the interaction between the connecting bar and the pad when the pad is inserted into one of the holes in the connecting bar.

[0003] The adjustment means include gripping means for lifting one end of the tab and extracting the stud from the hole in order to adjust / change the crampon length setting. When adjusting the crampon length, the gripping means may be difficult to grasp, particularly when the crampon user is wearing gloves.

[0004] Patent application EP 1 348 350 Al describes such a crampon.

[0005] There is a need to make adjusting the length of the crampon easier. Object of the invention

[0006] The present invention aims to facilitate the adjustment of the length setting of a crampon.

[0007] To this end, the invention relates to a length-adjustable shoe crampon, said crampon comprising: • a first part comprising a frame; • a second part; • an elongated connecting element linking the first and second parts, the first part and the connecting element being configured to exhibit relative to each other a capacity for movement according to the length of the connecting element to allow for adjustment of the crampon's length setting; • adjustment means configured to selectively adopt: • a coupling configuration with the linking element ensuring the length adjustment of the crampon; • a disengagement configuration relative to the connecting element in which movement capability is permitted to ensure adjustment; • a locking device configured to selectively adopt: • a locking configuration in which, when the adjustment means are in the coupling configuration, the locking device prevents the transition from the coupling configuration to the uncoupling configuration in order to maintain the length adjustment of the cleat; • an unlocking configuration in which variation between the coupling configuration and the uncoupling configuration is permitted. The crampon is configured so that, when the locking device is in its unlocking configuration and the adjustment means are in the coupling configuration, a force exerted on the crampon induces an automatic transition from the coupling configuration to the uncoupling configuration, said force being exerted on the crampon to obtain a relative displacement between the first part and the connecting element according to the movement capability in order to adjust the length setting of the crampon by reducing the length of the crampon.

[0008] Such a crampon has the advantage of allowing easier adjustment of its length. Indeed, it avoids having to manually lift the tab multiple times, as in the prior art, to adjust the crampon's length by trial and error. In particular, an adjustment achieved by moving the first part towards the second part is simpler, provided the locking mechanism has been deactivated by placing it in its unlocked position. This also allows for easier adjustment, for example, when the user is wearing gloves.In addition, according to one use case, this allows for quick adjustment of the crampon to the shoe by positioning the shoe on the crampon against the second part; then, while the locking device is in its unlocked configuration, the user simply moves the first part towards the second part until a suitable length adjustment is achieved, for example by placing the first part against the shoe or at the last possible coupling point between the adjustment means and the connecting element before the first part is against the shoe.

[0009] The crampon may further comprise one or more of the following characteristics.

[0010] According to a feature of the cleat, one of the first and second parts is a front part intended to receive the front of a shoe sole, and the other of the first and second parts is a rear part intended to receive the rear of the shoe sole.

[0011] This allows the crampon length setting to be adjusted by acting either on the front part or on the rear part.

[0012] According to a feature of the cleat, the adjustment means include a stud, and the connecting element includes adjustment holes staggered according to the length of the connecting element and configured each to receive the stud, the coupling configuration being implemented when the stud is inserted into any of the adjustment holes.

[0013] This allows an incremental adjustment of the cleat length, for example this incremental adjustment is such that it allows between two increments (i.e. between two adjacent adjustment holes) an adjustment according to a value less than or equal to the absolute value of the difference in sole length of the shoe between two consecutive shoe sizes.

[0014] According to a feature of the cleat, the stud includes a sliding surface configured to, when the locking device is in the unlocking configuration and the adjustment means are in the coupling configuration, slide on the connecting element when said force is exerted in order to allow the stud to be extracted from the adjustment hole in which it is inserted, resulting in the transition from the coupling configuration to the uncoupling configuration.

[0015] This allows the transition from the coupling configuration to the uncoupling configuration to be accompanied in order to adjust the length setting of the cleat without manual action on the adjustment means because the force exerted on the cleat, in particular bringing the first part towards the second part, to adjust the length setting of the cleat is sufficient to induce an automatic exit of the stud from a corresponding adjustment hole in which it is inserted.

[0016] According to a feature of the cleat, the sliding surface is a flat oblique face and each adjustment hole includes an edge comprising, on the side of the second part, a straight portion suitable for cooperating with the oblique face.

[0017] This allows for a suitable sliding of the stud on the connecting element during a rapprochement between the first and second parts and to adapt to the morphology of the stud to limit the functional play between the first part and the connecting element in the coupling configuration.

[0018] According to a feature of the crampon, the adjustment means comprise a body integral with the frame of the first part, the body having, in the configuration coupling, an original state and being configured for, in the unlocking configuration of the locking device: • exhibit elastic deformation during the transition from the coupling configuration to the uncoupling configuration; • switch, by automatic return to the original state, from the uncoupling configuration to the coupling configuration.

[0019] Elastic deformation allows, when said force exerted on the crampon is applied to reduce the length of the crampon, a variation between the coupling configuration and the uncoupling configuration without having to exert a manual force directly on the body while allowing, where appropriate, an automatic return to the coupling configuration.

[0020] According to a feature of the cleat, the body is configured so that, during the relative movement between the first part and the connecting element which induced the automatic transition from the coupling configuration to the uncoupling configuration, it allows an automatic transition from the uncoupling configuration to the coupling configuration, from which it results that the length adjustment of the newly obtained cleat corresponds to a decrease in the length of the cleat.

[0021] This is achieved in particular through the elastic deformation of the body obtained during the transition from the coupling configuration to the uncoupling configuration.

[0022] According to a feature of the crampon, the locking device comprises a locking element having a degree of mobility relative to the frame and the adjustment means; said locking element is configured to vary, according to its degree of mobility, between: • a first configuration in which, in the coupling configuration, the locking element opposes the transition from the coupling configuration to the uncoupling configuration; • a second configuration in which the transition from the coupling configuration to the uncoupling configuration is permitted.

[0023] This mobility capability allows for specific manipulation of the locking element in order to allow or inhibit the automatic transition from the coupling configuration to the uncoupling configuration.

[0024] According to a feature of the clamp, when the locking element is in the first configuration and the adjustment means are in the coupling configuration, the locking element cooperates with the linking element to hold the adjustment means so as to oppose the passage from the coupling configuration to the uncoupling configuration.

[0025] This makes it possible to ensure, where applicable, that the locking device is maintained in its locking configuration by maintaining the position of the adjustment means relative to the connecting element with which they are coupled.

[0026] According to a feature of the clamp, the body is connected to the frame of the first part at a connection region; the locking element is a ring through which the body passes and which is mounted to slide relative to the body; in the first configuration of the locking element, when the adjustment means are in the coupling configuration, the ring surrounds a part of the connecting element in order to prevent a separation of at least a part of the body from the connecting element allowing the passage from the coupling configuration to the uncoupling configuration; in the second configuration of the locking element, the ring does not oppose the elastic deformation of the body allowing the passage from the coupling configuration to the uncoupling configuration.

[0027] This allows, by positioning the ring in the second position, the desired elastic deformation of the body to allow adjustment of the crampon length setting.

[0028] According to a feature of the crampon, the locking device comprises a locking member configured to selectively adopt: • a first configuration in which the blocking device opposes the passage of the locking element from its first configuration to its second configuration; • a second configuration in which the blocking device allows the locking element to pass from its first configuration to its second configuration.

[0029] When an adequate adjustment of the crampon length is obtained, this ensures that this adjustment is maintained.

[0030] According to a feature of the cleat, the locking member is a spring blade, and the second configuration of the locking member corresponds to a compression state of the spring blade.

[0031] Such a spring blade has the advantage that manual action is required to change the locking element from its first to its second configuration, thus preventing unwanted loss of setting. With such a spring blade, this manual action can easily be performed by a finger of the user, even while wearing gloves, which is particularly suitable for crampon applications. Furthermore, the spring blade has the advantage of returning naturally to its original position when no longer under load (i.e., without manual action by the user), thus enabling, in particular, an automatic return to the first configuration of the locking mechanism.

[0032] According to a feature of the crampon, the spring blade is configured to vary between a first state and a second state, the passage from the first state to the second state being accompanied by a compression of the spring blade; in the first configuration of the locking member, while the locking element is in its first configuration, the blade is in its first state and forms a stop opposing the passage of the locking element from its first configuration to its second configuration; the crampon is configured so that the passage of the locking element from its first configuration to its second configuration is allowed following the passage of the spring blade from its first state to its second state, for example induced by a pushing force exerted on the spring blade by a user of the crampon.

[0033] The aforementioned pushing force is easy to apply, even by a user wearing gloves. Furthermore, the spring blade allows for positive and automatic locking of the locking element in the locked position.

[0034] According to a feature of the crampon, the frame of the first part includes a cross member and at least one guide element extending from the cross member, the connecting element cooperating with said at least one guide element so as to guide the ability to move.

[0035] This helps the user by conditioning the approach of the first part towards the second part.

[0036] According to a feature of the crampon, the crampon comprises a length adjustment configuration in which the connecting element and the second part are coupled such that: • exhibit, relative to each other, a degree of freedom along the connecting element strictly less than a value of the relative displacement between the first part and the connecting element during a variation of the crampon's length adjustment between two adjacent adjustment positions along the connecting element; or • that any relative movement between the connecting element and the second part in a direction along the length of the connecting element is prevented.

[0037] This allows for efficient adjustment of the crampon length in the sense that the user will then only have to manipulate the crampon at the level of the first part.

[0038] Other advantages and features may become apparent from the detailed description that follows. Brief description of the drawings

[0039] The invention will be better understood upon reading the detailed description that follows, given solely by way of non-limiting example and made with reference to the attached drawings listed below.

[0040] [Fig-1] Fig. 1 represents, in perspective view, a crampon according to a a particular method of implementing the invention.

[0041] [Fig.2] Fig.2 represents, in perspective view, the crampon of Fig.1 which has been shortened in length.

[0042] [Fig.3] Fig.3 represents, in perspective view, a part of the crampon according to the invention centered on a rear part of the crampon, seen from above and showing crampon adjustment means coupled to a crampon linking element ensuring a given length adjustment of the crampon, these adjustment means being locked by a locking device belonging to the crampon.

[0043] [Fig.4] Fig.4 shows a bottom view of the crampon part of the [Fig.3],

[0044] [Fig.5] Fig.5 represents, in a lateral cross-sectional view, the part of the crampon of the [Fig.3].

[0045] [Fig. 6] [Fig. 6] shows a perspective view of the centered part of the crampon on the rear part of the crampon for which a support is made on a locking member belonging to the locking device in order to move a locking member belonging to the locking device.

[0046] [Fig.7] Fig.7 represents, in a lateral cross-sectional view, the part of the crampon of the [Fig.6].

[0047] [Fig.8] Fig.8 represents, in perspective view, the part of the crampon centered on the rear part of the crampon for which the locking device no longer locks the adjustment means.

[0048] [Fig.9] Fig.9 represents, in a lateral cross-sectional view, the part of the crampon of the [Fig.8].

[0049] [Fig. 10] Fig. 10 represents, in perspective view, the part of the crampon centered on the rear part of the crampon for which an adjustment of the crampon length setting is in progress.

[0050] [Fig. 11] Fig. 11 represents, in a lateral cross-sectional view, the part of the crampon beyond [Fig. 10].

[0051] [Fig. 12] Fig. 12 represents, in perspective view, another part of the crampon centered on the front part of the crampon and top view.

[0052] [Fig. 13] Fig. 13 represents, in perspective view, a view from below of the other part of the crampon of [Fig. 12].

[0053] [Fig. 14] Fig. 14 represents, in perspective view, the other part of the crampon in a state allowing the crampon to be shortened, for example to store it in a bag.

[0054] [Fig. 15] The [Fig. 15] represents a top view of the crampon in a usage configuration for a length adjustment suitable for a small foot as opposed to a usage configuration for a length adjustment suitable for a large foot of figures 1 and 2.

[0055] In these figures, the same reference numerals are used to designate the same elements. The elements shown in the different figures are not necessarily drawn to scale in order to facilitate understanding of the figures. Detailed description

[0056] The invention relates to a length-adjustable crampon 100 for footwear. A particular embodiment of this crampon 100, or parts thereof, is illustrated in Figures 1 to 15. In other words, the crampon 100 has a length adjustment that can be modified.

[0057] The, and in particular each, length setting corresponds, preferably, to a set value of the length of the crampon 100 in a crampon 100 usage configuration, the adjustment of the length setting of the crampon 100 corresponds in particular to the action exerted on the crampon 100 to modify the length setting of the crampon 100.

[0058] The crampon 100 is notably a crampon for mountain activities, also in this case called a mountaineering crampon. More specifically, the crampon 100 is an ice crampon.

[0059] The crampon 100 may include a lower side and an upper side opposite the lower side. The upper side is intended to receive the shoe. Thus, the lower side of the crampon 100 is specifically defined opposite the location of the shoe on the crampon 100.

[0060] In the following description, the notions of front and rear are given in the reference frame of the crampon 100, in particular in relation to its use in cooperation with a shoe, the front of the crampon 100 being associated with (i.e. having to receive the) end of the shoe at the level of the toes of one of the feet of the person wearing the shoe and the rear of the crampon 100 being associated with (i.e. having to receive the) end of the shoe at the level of the heel of said one of the feet.

[0061] The crampon 100 comprises a first part 101 including a frame 102 and a second part 103.

[0062] For example, one of the first and second parts 101, 103 is a front part intended to receive the front of a shoe sole, and the other of the first and The second part, 101 and 103, is a rear part intended to receive the rear of the shoe sole.

[0063] In the context of the embodiment illustrated in figures 1 and 2, and as seen in figures 3 to 11 and 15, the first part 101 is intended to / configured to receive the back of the sole of the shoe.

[0064] In the context of the embodiment illustrated in figures 1 and 2, and as seen in figures 12 to 15, the second part 103 is intended to / configured to receive the front of the sole of the shoe.

[0065] The crampon 100 comprises an elongated connecting element 104 (for example, as shown in Figures 1 to 15), also called a bar in the technical field of the present invention. This connecting element 104 links the first and second parts 101, 103. In particular, the first and second parts 101, 103 are separated from each other by a longitudinal portion of the connecting element 104, and this is the case regardless of the length setting of the crampon 100, for which the length of the longitudinal portion is of course adapted since this length of the longitudinal portion depends on the current length setting of the crampon 100.

[0066] In particular, the connecting element 104 comprises opposite longitudinal ends 104a, 104b.

[0067] The first part 101 and the connecting element 104 are configured to exhibit relative to each other a movement capability along the length of (in particular along) the connecting element 104 to allow adjustment of the length setting of the crampon 100.

[0068] For example, sliding the first part 101 along the connecting element 104 (in the direction of the length of the connecting element 104), or conversely sliding the connecting element 104 along its length relative to the first part 101 allows the length of the crampon 100 to be modified / adjusted.

[0069] Figures 1 and 2 show, for example, two different settings of the same crampon 100 respectively of length L1 and of length L2, with the length L1 strictly greater than the length L2.

[0070] In order to ensure the length adjustment of the crampon 100, the crampon 100 includes adjustment means 105 configured to selectively adopt: • a coupling configuration with the linking element 104 ensuring the length adjustment of the crampon 100, in other words the coupling configuration allows, for example in the configuration of use of the crampon 100, to ensure that the length of the crampon 100, i.e. its length adjustment, is maintained; • a disengagement configuration relative to the linking element 104 in which movement capability is permitted in order to ensure adjustment of the length setting of the cleat 100.

[0071] For example, figures 1 to 9 and 15 illustrate the coupling configuration of the adjustment means 105.

[0072] For example, figures 10 and 11 illustrate the uncoupling configuration of the adjustment means 105.

[0073] By "adjusting the length setting of the crampon 100," it is understood that the effective length of the crampon 100 can be adjusted to different predetermined lengths (i.e., within an adjustment range) to accommodate different user shoe sizes and shoe shapes. Thus, the coupling configuration of the adjustment means 105 can be implemented at different adjustment positions 106 along the connecting element 104. Each adjustment position 106 corresponds, when the adjustment means 105 are in the coupling configuration with the connecting element 104 at that adjustment position 106, to a given value of the crampon 100 length setting corresponding to a predetermined crampon 100 length, particularly in the usage configuration.

[0074] In the example illustrated in [Fig. 5], eleven adjustment positions 106 (each represented by a dashed circle) can be identified, each associated in particular with a length value of the crampon 100 when the adjustment means 105 are coupled to said adjustment position 106. This number of eleven adjustment positions 106 is not limiting, as the crampon 100 may have more or fewer, but at least two.

[0075] The crampon 100 includes a locking device 107 configured to selectively adopt: • a locking configuration in which, when the adjustment means 105 are in the coupling configuration, the locking device 107 prevents the adjustment means 105 from switching from the coupling configuration to the uncoupling configuration to maintain the length setting of the cleat 100 (also called the current length setting of the cleat 100); • an unlocking configuration in which variation between the coupling configuration of the adjustment means 105 and the uncoupling configuration of the adjustment means 105 is permitted.

[0076] In particular, figures 1 to 7 and 15 each show the locking device 107 in its locking configuration.

[0077] In particular, figures 8 to 11 each show the unlocking device 107 in its unlocking configuration.

[0078] In other words, in the locking configuration of the locking device 107 and when the adjustment means 105 are in the coupling configuration, the length adjustment of the cleat 100 is fixed, and in the unlocking configuration of the locking device 107 the length adjustment of the cleat 100 can be adjusted, in particular by varying the relative position between the first part 101 and the connecting element 104.

[0079] To facilitate adjusting the length of the crampon 100, the crampon 100 is configured so that, when the locking device 107 is in its unlocked position and the adjustment means 105 are in the coupled position, a force Fl applied to the crampon 100 (represented by an arrow Fl in Figures 8 to 11) induces an automatic transition of the adjustment means 105 from the coupled position to the uncoupled position. This force Fl is applied to the crampon 100 to obtain a relative displacement between the first part 101 and the connecting element 104, according to the movement capability, in order to adjust the length of the crampon 100 by reducing its length.

[0080] By "to obtain a relative displacement between the first part 101 and the connecting element 104 according to the movement capability in order to adjust the length setting of the crampon 100 by reducing the length of the crampon 100", it is understood that there remains, before the force Fl is exerted, at least one coupling configuration of the adjustment means 105 attainable, in particular at an adjustment position 106, within the framework of a reduction of the length of the crampon 100.

[0081] The Fl effort actually makes it possible to induce in the end a rapprochement between the first part 101 and the second part 103.

[0082] This effort Fl can be exerted indifferently: • on the first part 101 (case represented in figures 8 to 11) while the position of the connecting element 104 and / or the position of the second part 103 remain unchanged (i.e. the force Fl exerted on the first part 101 allows it to be brought closer to the second part 103 in order to induce an automatic transition from the coupling configuration of the adjustment means 105 to the uncoupling configuration of the adjustment means 105 to adjust the setting of the length of the crampon 100); • on the connecting element 104 while the first part 101 is maintained; or • on the second part 103, which is in constant motion with the connecting element 104, in a direction tending to bring the second part 103 closer to the first part 101.

[0083] This allows different scenarios for adjusting the length setting of the 100 crampon.

[0084] According to a scenario for adjusting the length setting of the crampon 100, the crampon 100 is longer than the length it should be for a given user. The user positions their shoe on the crampon 100, specifically against the second part 103, which then forms the front part of the crampon 100. Next, while the locking device 107 is in the unlocked position, the user applies force Fl to the first part 101 in a direction tending to bring the first part 101 closer to the second part 103 until the coupling configuration of the adjustment means 105 with the connecting element 104, adapted to the shoe length, is achieved. From then on, if necessary, one or more adjustment positions can be successively adopted before reaching the adjustment position 106 adapted to the shoe.

[0085] In this case, in order to make an adjustment of the length setting of the adapted crampon 100, it is necessary to hold together the connecting element 104 and the second part 103. This holding is ensured in particular in the configuration of use.

[0086] As mentioned above, it may be preferable for the second part 103 to be fixed in motion to the connecting element 104. To this end, the clamp 100 may include a length adjustment configuration in which the connecting element 104 and the second part 103 are linked / coupled such that: • exhibit, relative to each other, a degree of freedom along the connecting element 104 strictly less than a value of the relative displacement between the first part 101 and the connecting element 104 during a variation of the length adjustment of the cleat 100 between two adjacent adjustment positions 106 (i.e., associated with two consecutive length adjustments of the cleat 100) along the connecting element 104; or • that any relative movement between the connecting element 104 and the second part 103 in a direction along the length of the connecting element 104 is prevented.

[0087] In particular, Figures 1, 2, 12, 13, and 15 illustrate an embodiment with the possibility of implementing the degree of freedom in the sense that the connecting element 104 comprises, at its longitudinal end 104a opposite the first part 101, a first coupling member 108, and the second part 103 comprises a second coupling member 109. In the adjustment configuration, the first and second coupling members 108 and 109 are coupled to each other to limit the relative movement between the connecting element 104 and the second part 103.

[0088] According to a particular example, the degree of freedom is such that it allows the length of the crampon 100 (in particular its predetermined length) to be fine-tuned by varying this length of the crampon 100 according to a functional range, for each length adjustment of the crampon 100, between a minimum reference length and a maximum reference length, the absolute value of the difference between the minimum reference length and the maximum reference length being between 3 millimeters and 10 millimeters, and preferably between 5 millimeters and 8 millimeters. This makes it possible to take into account differences in shoe sizes between countries; for example, in France a shoe size increment used may be 5 millimeters, whereas in the United Kingdom a shoe size increment used may be 3 millimeters.

[0089] By "between two values", it is understood in this description that these two values ​​form the bounds of a corresponding range for which the two values ​​are included.

[0090] In the configuration of use of the crampon 100 by the user, the first and second coupling members 108, 109 are of course coupled, then attaching the second part 103 to the linking element 104.

[0091] For example, the first coupling member 108 is a through hole formed in the thickness of the connecting element 104 and the second coupling member 109 is a stud inserted, when the first and second coupling members 108, 109 are coupled, into the through hole forming the first coupling member 108.

[0092] The second part 103 may include a frame 110 comprising a cross member 111 arranged on the side of the first part 101. The second part 103 may include a support member 112 extending from the cross member 111 of the frame 110 of the second part 103 to the inner side of the frame 110 of the second part 103, for example, in the manner of a stirrup. The second coupling member 109 then extends from the support member 112 in order to limit the degree of freedom when the connecting element 104 is supported by the support member 112 and the second coupling member 109 is coupled to the first coupling member 108.

[0093] In order to achieve a suitable guidance according to the degree of freedom, the cross member 111 of the frame 110 of the second part 103 may include, at the external periphery of the frame 110 of the second part 103, another support member 113 ([Fig. 13]), for example also adopting the form of a stirrup.

[0094] To satisfy the need for compact storage of the crampon 100, the first and second coupling members 108, 109 can be uncoupled, for example by tilting the connecting element 104 relative to the frame 110 of the second part 103 as shown by way of example in [Fig. 14], which then allows the longitudinal end 104a of the connecting element 104 comprising the first coupling member 108 forward (direction Dl) of the second part 103 to suitably reduce the length of the crampon 100 so that it can be stored shortened, for example in a bag. Then, in order to re-couple the first and second coupling members 108, 109, it is sufficient to position them in the same region by relative sliding between the second part 103 and the connecting element 104 in a direction substantially parallel to the direction of measurement of the length of the connecting element 104, and then to align the connecting element 104 and the frame 110 of the second part 103, for example in parallel planes.

[0095] By "substantially parallel" it is understood to be parallel or parallel to plus or minus 10 degrees.

[0096] In the case where it is desired to prevent any relative movement between the connecting element 104 and the second part 103 in a direction along the length of the connecting element 104, the connecting element 104 can be fixed to the second part 103 by any type of fixing means such as, for example, a weld, a bolt, a rivet, or a crimp.

[0097] It follows from the foregoing that an efficient solution is needed to adjust the length of the clamp 100. To this end, the adjustment means 105 preferably comprise a stud 114 (for example, visible in Figures 1 to 11 and 15), and the connecting element 104 preferably comprises adjustment holes 115 spaced according to the length of the connecting element 104 (i.e., between the opposite longitudinal ends 104a, 104b of the connecting element 104). Each of the adjustment holes 115 is configured to receive the stud 114, in particular by inserting the stud 114 into said adjustment hole 115. Thus, the coupling configuration of the adjustment means 105 is implemented when the stud 114 is inserted into any of the adjustment holes 115.

[0098] In particular, the clamp 100 can have as many possible length adjustments as there are adjustment holes 115. The coupling configuration of the adjustment means 105 can then be implemented at different adjustment positions 106 along the connecting element 104. Thus, for example, in Figures 5, 7, 9 and 11, it is possible to count eleven adjustment holes 115, this number not being limiting.

[0099] Preferably, what applies to all or part of the adjustment holes 115 can apply to each adjustment hole 115.

[0100] All or part of the adjustment holes 115 may be through holes, each passing through the connecting element 104 according to its thickness.

[0101] Alternatively, all or part of the adjustment holes 115 may be blind and each have an access opening provided on the side of the adjustment means 105 to allow the insertion of the stud 114.

[0102] Preferably, the pitch used for repeating the adjustment holes 115 on the connecting element 104 is 6.4 millimeters.

[0103] According to an embodiment enabling the automatic transition from the coupling configuration of the adjustment means 105 to the uncoupling configuration of the adjustment means 105, the pin 114 preferably comprises a sliding surface 116 (for example, such as is visible in Figures 4, 5, 7, 9, and 11) configured so that, when the locking device 107 is in the unlocking configuration and the adjustment means 105 are in the coupling configuration of the adjustment means 105, it slides on the connecting element 104 when said force Fl is applied in order to allow the pin 114 to be extracted from the adjustment hole 115 in which it is inserted, resulting in the transition from the coupling configuration of the adjustment means 105 (the pin 114 is inserted in one of the adjustment holes 115) to the uncoupling configuration of the adjustment means 105 (the pin 114 is out of each of the 115 adjustment holes).This is illustrated in particular by the transition from [Fig.9] to [Fig.II].

[0104] Extraction is then carried out by sliding progressively causing the pin 114 to come out of the adjustment hole 115 in which it is inserted until the pin 114 is no longer present in said adjustment hole 115 ([Fig. 11]).

[0105] Different shapes of the stud 114 and adjustment holes 115 can be envisaged as long as extraction by sliding is possible.

[0106] Preferably, in the coupling configuration of the adjustment means 105 and while the locking device 107 is in the unlocking configuration, the sliding surface 116 comes into contact with an edge of the corresponding adjustment hole 115, at least when the force Fl is initiated, to facilitate the exit of the pin 114 from this adjustment hole 115 when the force Fl is exerted.

[0107] In fact, when the adjustment means 105 are in the coupling configuration, the stud 114 may have functional clearance with the adjustment hole 115 into which it is inserted. Therefore, the relative proximity between the first and second parts 101, 103 allows, where appropriate, the sliding surface 116 to come into contact with the edge of the corresponding adjustment hole 115, and then for the sliding surface 116 to slide against this edge of the corresponding adjustment hole 115.

[0108] Alternatively, in the coupling configuration of the adjustment means 105, the sliding surface 116 is kept in contact with the edge of the corresponding adjustment hole 115.

[0109] All or part of the adjustment holes 115 may each include a chamfer intended to cooperate with the sliding surface 116.

[0110] According to an embodiment illustrated in particular in Figures 4, 5, 7, 9 and 11, the sliding surface 116 can be a flat oblique face and each adjustment hole 115 includes an edge comprising, on the side of the second part 103, a straight portion 117 (Figures 3, 5, 6, 7, 8, 9, 10 and 11) adapted to cooperate with the oblique face. The aforementioned cooperation allows the oblique face to slide against the edge at the level of the straight portion 117.

[0111] The remainder of the edge of each adjustment hole 115 can connect the two opposite longitudinal ends of the right portion 117 of this edge, for example in the manner of an arc.

[0112] The edge of each adjustment hole 115 delimits in particular the access opening of this adjustment hole 115 through which the stud 114 can enter said adjustment hole 115 or exit from said adjustment hole 115 the stud 114. This access opening is in particular arranged on the upper side of the cleat 100.

[0113] Alternatively, it is possible to imagine that the sliding surface 116 corresponds to a portion of a spherical surface, and that the portion 117 of the edge of the adjustment hole 115 allowing the sliding is arched and is, for example, in the form of an arc of a circle.

[0114] In order to participate in the automation of the length adjustment of the crampon 100, the adjustment means 105 may include a body 118 integral with the frame 102 of the first part 101. The body 118 has, in the coupling configuration of the adjustment means 105, an original state and is configured, in the unlocking configuration of the locking device 107: • exhibit elastic deformation (for example on the upper side of the cleat) when changing from the coupling configuration of the adjustment means 105 to the uncoupling configuration of the adjustment means 105 (see figures 10 and 11); • to switch, by automatic return to the original state, from the discoupling configuration of the adjustment means 105 to the coupling configuration of the adjustment means 105, this being for example the case when the stud 114 reaches another adjustment hole 115 in the direction where the stud 114 is then no longer in contact with the connecting element 104 in a way that allows the elastic deformation to be maintained.

[0115] For example, this automatic return to the original state is permitted in the sense that the body 118, when deformed elastically, tends to resume a primitive shape corresponding in particular to its shape in the original state when it is no longer stressed.

[0116] Furthermore, the aforementioned elastic deformation and automatic return ensure that the coupling configuration is maintained as long as sufficient force is applied to overcome the spring effect of body 118 allowing it to deform is not implemented (i.e. that in this case there is no transition from the coupling configuration to the uncoupling configuration).

[0117] Preferably, it is the sliding of the sliding surface 116 against the edge of the corresponding adjustment hole 115 that induces the elastic deformation of the body 118.

[0118] For example, after extraction of the stud 114 from the adjustment hole 115 in which it was inserted, the stud 114 is supported on a portion 119 of the connecting element 104 ([Fig. 11]) between two adjacent adjustment holes 115a, 115b so that the elastic deformation of the body 118 is maintained, the force Fl leads to a relative sliding between the stud 114 and the portion 119 of the connecting element 104 until the stud 114 reaches the next adjustment hole 115b into which it automatically enters due to the automatic return mentioned above.

[0119] Preferably, in the event of an attempt to separate the first and second parts 101, 103 from each other, the stud 114 comes, in the coupling configuration, to abut against the corresponding adjustment hole 115 in such a way that the forces are not taken up by the body 118 which cannot then automatically deform in a way that induces the stud 114 to come out of the adjustment hole 115 in which it is inserted.

[0120] By "the body 118 integral with the frame 102 of the first part 101", it is understood that the body 118 can be fixed to the frame 102 of the first part 101, for example by rivet, by bolt, by welding or by crimping or can be formed from the same material as the frame 102 of the first part 101. In the example illustrated in figures 1 to 11, a rivet 138 passing through the body 118 and the frame 102 of the first part 101 ensures the fixing of the frame 102 of the first part 101 to the body 118.

[0121] In particular, the body 118 is attached to / connected to the frame 102 of the first part 101 at the level of a connecting region 125 between the body 118 and the frame 102 of the first part 101.

[0122] The body 118 may be made of a material that allows said body 118 to deform like a spring (elastic deformation), enabling it to return to its original shape when deformed. For example, the material may be metal, steel, carbon, a chromium-molybdenum alloy, or stainless steel.

[0123] As illustrated in Figures 1 and 2, the body 118 can adopt an elongated shape, for example a frame shape, and the stud 114 can be fixed to this body 118 at a distance from the connecting region 125. The elastic deformation of the body 118 is achieved in particular between the connecting region 125 and the stud 114.

[0124] Thus, more generally, the body 118 can be configured so that, during the relative movement between the first part 101 and the connecting element 104 which induced the automatic change in the coupling configuration of the means 105 of adjustment to the uncoupling configuration of the adjustment means 105, allow an automatic transition from the uncoupling configuration of the adjustment means 105 to the coupling configuration of the adjustment means 105, from which it results that the newly obtained crampon length adjustment corresponds to a decrease in the length of crampon 100, that is to say, corresponds to a value of the length of crampon 100 less than the value of the length of crampon 100 for the previous crampon length adjustment 100.

[0125] For example, as can be seen in Figures 1 to 11 and 15, the locking device 107 may include a locking element 120 having a degree of mobility relative to the frame 102 and the adjustment means 105. For example, the locking element 120 is configured to vary, according to its degree of mobility, between: • a first configuration in which, in the coupling configuration of the adjustment means 105, the locking element 120 opposes the passage from the coupling configuration of the adjustment means 105 to the uncoupling configuration of the adjustment means 105; • a second configuration in which the transition from the coupling configuration of the adjustment means 105 to the uncoupling configuration of the adjustment means 105 is permitted.

[0126] The first configuration can be a first position (Figures 1 to 7 and 15) and the second configuration can be a second position (Figures 8 to 11). Thus, the variation in position of the locking element 120, preferably manually controlled by the user, selectively inhibits or allows the adjustment of the length setting of the cleat 100.

[0127] The locking element 120 makes the function of maintaining the locking configuration of the locking device 107 independent.

[0128] In addition to maintaining the crampon 100's length setting during use, this solution, including the locking element 120, also allows this setting to be retained, for example, when the crampon 100 is handled, particularly when being stored in a bag before or after use, and when it is intentionally desired to maintain the crampon's length setting and thus prevent an accidental loss of the current length setting. Furthermore, even if the stud 114, coupled in a corresponding adjustment hole 115, can be positioned in such a way that the crampon 100 cannot be extended without exerting force on the body 118, the locking element 120 can act as an additional safety feature.

[0129] The locking element 120 may also have a visual indicator function for the status of the cleat 100, for example via its identifiable position, in particular so as to indicate whether the latter is such that the coupling configuration can be maintained or not regardless of the force applied to body 118.

[0130] In other words, more generally, the movement capability of the locking element 120 allows said locking element 120 to selectively: • to oppose the transition from the coupling configuration of the adjustment means 105 to the uncoupling configuration of the adjustment means 105 (figures 1 to 7 and 15); • allow the transition between the coupling configuration of the adjustment means 105 and the uncoupling configuration of the adjustment means 105 (figures 8 to 11).

[0131] When the locking element 120 is in its first configuration and the adjusting means 105 are in the coupling configuration, the locking element 120 can cooperate with the linking element 104 to hold the adjusting means 105, and more particularly the body 118 of the adjusting means 105, so as to oppose the passage from the coupling configuration of the adjusting means 105 to the uncoupling configuration of the adjusting means 105.

[0132] This retention naturally prevents the disengagement of the adjustment means 105 from the connecting element 104.

[0133] Thus, the locking element 120 can hold the connecting element 104 and the body 118 together so as to oppose the elastic deformation of the body 118 in the sense that the connecting element 104 is not deformable like the body 118.

[0134] According to one embodiment, in particular as illustrated in figures 1 to 11 and 15, the locking element 120 is a ring and the body 118 is connected to the frame 102 of the first part 101 at the connection region 125, for example the body 118 is fixed to the frame 102 of the first part 101 as described above. The ring is then passed through the body 118 and mounted to slide relative to, and in particular on, the body 118. In the first configuration of the locking element 120, when the adjustment means 105 are in the coupling configuration, the ring surrounds a part of the linking element 104 in order to prevent a separation of at least a part of the body 118 from the linking element 104, this separation being that which allows the passage from the coupling configuration of the adjustment means 105 to the uncoupling configuration of the adjustment means 105.In the second configuration of the locking element 120, the ring does not impede the elastic deformation of the body 118, allowing the adjustment means 105 to switch from the coupling configuration to the uncoupling configuration. In other words, in the second configuration of the locking element 120, the ring is positioned to permit the elastic deformation of the body. 118 allowing the transition from the coupling configuration of the adjustment means 105 to the uncoupling configuration of the adjustment means 105.

[0135] Preferably, in the second position of the locking element 120, the ring is closer to the connecting region 125 than in the first position of the locking element 120.

[0136] The ring can adopt the form of an open or closed ring.

[0137] According to this embodiment where the locking element 120 is a ring, it is clear that the position of the ring is particularly important for selectively implementing the locking configuration of the locking device 107 or the unlocking configuration of the locking device 107. Here, the first configuration of the locking element 120 therefore corresponds to the first position of the locking element 120, and the second configuration of the locking element 120 corresponds to the second position of the locking element 120.

[0138] According to an embodiment not shown, the locking element may, particularly when it opposes the transition from the coupling configuration of the adjusting means to the uncoupling configuration of the adjusting means, oppose the elastic deformation of the body enabling this transition, for example by positioning itself so that at least a part of the body is arranged between the frame of the first part and the locking element. The locking element may, for this purpose, be in the form of a mechanism rotatably mounted on the frame of the first part and may have a rotating arm that: • to position itself above the body in the locking configuration of the locking device so as to form a stop preventing deformation of the body sufficient for the transition from the coupling configuration of the adjustment means to the uncoupling configuration of the adjustment means; • position yourself away from the body in the unlocking configuration of the locking device so as not to oppose the deformation of the body when the Fl force is applied to the crampon.

[0139] It follows from the foregoing that the configuration, and in particular the position, of the locking element 120 could determine the possibility of adjusting the length setting of the cleat 100. In order to ensure that the locking configuration of the locking device 107 can be maintained while preventing an undesired transition to the unlocking configuration of the locking device 107, the locking device 107 may include a locking member 121 configured to adopt, in particular in the locking configuration of the locking device 107, selectively: • a first configuration in which the blocking member 121 opposes the passage from the first configuration of the locking element 120 to the second configuration of the locking element 120; • a second configuration in which the locking member 121 allows the passage from the first configuration of the locking element 120 to the second configuration of the locking element 120.

[0140] In particular, the locking member 121 is configured so that when the crampon 100 is mounted on the shoe, it is impossible to allow the variation of the locking element 120 between its first and second configurations, in particular because the locking member 121 is not, in this case, manually accessible.

[0141] In particular, in the second configuration of the locking member 121, the locking element 120 can vary between its first and second configurations, for example by manual actuation by the user, where appropriate, by moving it towards the connection region 125 or away from the connection region 125.

[0142] The locking member 121, as illustrated in particular in figures 1 to 11 and 15, can be a spring blade. In this case, the second configuration of the locking member 121 corresponds to a compression state of the spring blade. This compression state can be obtained by manual actuation (in particular to switch from the first configuration of the locking element 120 to the second configuration of the locking element 120), for example by manually pushing on the spring blade, for example via a finger of the user of the crampon 100, and according to a pushing force F2 illustrated in [Fig.7] by an arrow F2.In particular, when the locking element 120 returns from its second configuration to its first configuration, a manual force applied to the locking element 120 is sufficient for the locking element 120 to compress the spring blade to a tipping point where the spring blade is no longer compressed (it returns to its original shape), or is less compressed, by the locking element 120 then in its first configuration.

[0143] Preferably, the spring blade is configured to vary between a first state and a second state, the transition from the first state to the second state being accompanied by a compression of the spring blade. Figures 1 to 3, 5, 10 to 11, and 15 illustrate the first state. Figures 6 and 7 illustrate the second state.

[0144] In particular, in the first configuration of the locking member 121, while the locking element 120 is in its first configuration, the leaf spring is in its first state and forms a stop 126 (for example, as seen in [Fig. 5]) opposing the passage of the locking element 120 from its first configuration to its second configuration. For example, in [Fig. 5], the leaf spring prevents the ring from recoiling towards the connecting region 125, which ensures, via the ring, the retention of the body 118 and the connecting element 104 relative to each other. In addition, the body 118 can, opposite the connecting region 125, widen so as to form an additional stop which, together with the stop 126 formed by the locking member 121, helps to retain the ring in a suitable region, with the result that the locking element 120 is held in its first position.

[0145] In addition, the crampon 100 can be configured so that the passage of the locking element 120 from its first configuration to its second configuration is allowed following the passage of the spring blade from its first state to its second state, for example induced by the thrust force F2 exerted on the spring blade by the user of the crampon 100.

[0146] In the second state of the spring blade, the ring can slide along the body 118, in particular between the connecting region 125 and the stud 114.

[0147] For example, as illustrated in particular in figures 3 to 11, the frame 102 of the first part 101 includes a cross member 122 and at least one guide element 123a, 123b extending from the cross member 122 of the frame 102 of the first part 101, in particular from the lower side of the cleat 100. The connecting element 104 cooperates with said at least one guide element 123a, 123b so as to guide the ability to move.

[0148] For example, the presence of two guide elements 123a, 123b is preferred to form, with the connecting element 104, a sliding connection, thus conditioning the relative movement between the first part 101 and the connecting element 104, and therefore the ability to move.

[0149] Of course, a single guide element 123a, 123b can also be provided if its dimensioning allows the desired guidance of the connecting element 104 to be obtained with respect to the first part 101, i.e. preferably according to a sliding connection.

[0150] In figures 3 to 11, the cross member 122 of the first part 101 includes a guide element 123a forming a stirrup through which the connecting element 104 passes and a guide element 123b formed by two support shoulders / hooks supporting the connecting element 104 under the cross member 122 of the frame 102 of the first part 101, the two guide elements 123a, 123b being offset transversely with respect to the cross member 122 of the first part 101 and along the connecting element 104.

[0151] The cross member 122 of the frame 102 of the first part 101 may include an opening 124 into which the stud 114 is permanently inserted, said cross member 122 being arranged between a portion of the adjustment means 105, in particular from which the stud 114 extends, and a portion of the connecting element 104. Naturally, the portion of the connecting element 104 is not the same depending on the current length adjustment of the cleat 100.

[0152] The adjustment means 105 may include a gripping member 136. This gripping member 136 allows, when the locking device 107 is in the unlocked configuration, for example, the manual disengagement of the adjustment means 105 from the connecting element 104 (transition from the engagement configuration of the adjustment means 105 to the disengagement configuration of the adjustment means 105) via a tensile force F3 (represented by an arrow F3 in [Fig. 9]), subsequently allowing the cleat 100 to be lengthened, for example by separating the first and second parts 101, 103, or conversely, the cleat 100 to be shortened by bringing the first and second parts 101, 103 together. The gripping member 136 is, in particular, a part of the body 118 forming a distal end of the body 118 of the connecting region 125. The gripping member 136 can form the additional stop mentioned above.The elastic deformation of the body 118, allowing the extraction of the pin 114 from the adjustment hole 115 in which it is inserted, is notably carried out between the connection region 125 and the gripping member 136.

[0153] In a conventional manner, the first part 101 and the second part 103 each comprise spikes 127, 128, in particular arranged on the lower side of the crampon 100, and extending from the corresponding frame 102, 110.

[0154] The points 127 of the first part 101 can come from material with the frame 102 of the first part 101, and can be four in number as illustrated in [Fig.4],

[0155] The frame 102 of the first part 101 can be made of steel or aluminum.

[0156] The points 128 of the second part 103 can come from material with the frame 110 of the second part 103, and can be eight in number as illustrated in [Fig.13].

[0157] The frame 110 of the second part 103 can be made of steel or aluminum.

[0158] In the technical field of the invention, the frame 102 of the first part 101 and the spikes 127 of the first part 101 can be an integral part of an assembly called a rail (rear rail in the case illustrated in [Fig.1]).

[0159] In the technical field of the invention, the frame 110 of the second part 103 and the spikes 128 of the second part 103 can be an integral part of an assembly called a rail (front rail in the case illustrated in [Fig.1]).

[0160] As shown in Figures 1 to 2, the crampon 100 may include a fastening system for the shoe. In particular, the fastening system may include: • a rear fastening 129 attached to the first part 101 and configured to snap onto a rear overhang of the shoe, the rear fastening 129 possibly including a tightening strap 130 to clamp the shoe between the back of the shoe and a portion of a shoe upper located above an instep of the shoe; • a front 131 binding configured to engage on a front welt of the boot.

[0161] Alternatively, simple straps can be used to secure the first part 101 to the back of the shoe and the second part 103 to the front of the shoe.

[0162] Thus, any fastening system enabling the function of securing the shoe to the first part 101 and the second part 103 can be provided.

[0163] It should be noted that in figures 3 to 11, the rear 129 fastener of the fastening system has been removed for clarity.

[0164] Figures 1, 2 and 15 show anti-snow accessories 132, 133, specifically at the rear and front respectively. These anti-snow accessories 132, 133 are in fact membranes that partially or completely seal the frame 102 of the first part 101 and the frame 110 of the second part 103 in order to prevent the accumulation of snow stuck under the boot when using the crampon 100.

[0165] These anti-snow accessories 132, 133 are optional; they have also been removed in figures 3 to 14, where screws 134, 135 remain visible where applicable, used for their attachment respectively to the frame 102 of the first part 101 and to the frame 110 of the second part 103.

[0166] In addition to its function of preventing the accumulation of snow in front of the crampon 100, i.e. under the second part 103 in the example illustrated in figures 1, 2 and 15, the front anti-snow accessory 133 can, where appropriate, ensure the maintenance of the coupling between the first and second coupling members 108, 109, for example by exerting a force on the connecting element 104 tending to oppose the inclination mentioned above allowing the uncoupling of the first and second coupling members 108, 109 to occur.The aforementioned force on the connecting element 104 may be a spring effect applied locally by the front anti-snow accessory 133, this spring effect being able to be overcome by deformation of the front anti-snow accessory 133 when a force is voluntarily applied by the user on the connecting element 104 and / or on the second part 103 in order to misalign them to obtain the desired inclination necessary for the uncoupling of the first and second coupling members 108, 109.

[0167] According to a particular embodiment, which is illustrated in particular in Figures 1, 2 and 12 to 15, the connecting element 104 may include a first additional coupling member 108a, the first additional coupling member 108a and the first coupling member 108 being offset along the connecting element 104. In this case, everything described in relation to the first coupling member 108 and the second coupling member 109 may apply. to the first additional coupling member 108a and to the second coupling member 109. Thus, the crampon 100 can have two usage configurations, respectively coupling the second coupling member 109 to the first coupling member 108 and the second coupling member 109 to the first additional coupling member 108a. Figures 1 and 2 show the first coupling member 108 coupled with the second coupling member 109 (typically corresponding to a usage configuration for large feet), and [Fig. 15] shows the first additional coupling member 108a coupled with the second coupling member 109 (typically corresponding to a usage configuration for small feet compared to the large feet shown in Figures 1 and 2).In a given usage configuration, this influences the adjustment range of the length setting of the crampon 100 through cooperation between the adjustment means 105 and the connecting element 104.

[0168] The first part 101 and the second part 103 form, in particular, a support platform for the shoe on the upper side of the cleat 100. The front attachment 131 can form a front stop for the shoe. The rear first part 101 can include one or more rear stops 137 for the shoe.

[0169] Of course, the invention also relates to a pair of crampons as described respectively for equipping a right and a left shoe. It should be noted that crampon 100 of Figures 1 and 2 is intended for equipping a left shoe.

[0170] The present invention finds an industrial application in the field of mountain and / or icy or snowy surface activity.

Claims

1. Demands Adjustable length crampon (100) for footwear, said crampon (100) comprising: • a first part (101) comprising a frame (102); • a second part (103); • an elongated connecting element (104) linking the first and second parts (101, 103), the first part (101) and the connecting element (104) being configured to exhibit relative to each other a movement capability according to the length of the connecting element (104) to allow adjustment of the length setting of the crampon (100); • tuning means (105) configured to selectively adopt: • a coupling configuration with the linking element (104) ensuring the length adjustment of the crampon (100); • a disengagement configuration relative to the linking element (104) in which movement capability is permitted in order to ensure adjustment; • a locking device (107) configured to selectively adopt: • a locking configuration in which, when the adjustment means (105) are in the coupling configuration, the locking device (107) prevents the transition from the coupling configuration to the uncoupling configuration to maintain the length adjustment of the cleat (100); • an unlocking configuration in which variation between the coupling configuration and the uncoupling configuration is permitted; the crampon (100) being configured such that, when the locking device (107) is in its unlocked configuration and the adjustment means (105) are in the configuration In coupling, a force (Fl) exerted on the cleat (100) induces an automatic transition from the coupling configuration to the uncoupling configuration, said force (Fl) being exerted on the cleat (100) to obtain a relative displacement between the first part (101) and the connecting element (104) according to the movement capability in order to adjust the length setting of the cleat (100) by reducing the length of the cleat (100).

2. Cleat (100) according to claim 1, wherein one of the first and second parts (101, 103) is a front part intended to receive the front of a sole of the shoe, and the other of the first and second parts (101, 103) is a rear part intended to receive the rear of the sole of the shoe.

3. Crampon (100) according to any one of claims 1 to 2, wherein the adjustment means (105) comprise a stud (114), and wherein the connecting element (104) comprises adjustment holes (115) staggered along the length of the connecting element (104) and each configured to receive the stud (114), the coupling configuration being implemented when the stud (114) is inserted into any of the adjustment holes (115).

4. Cleat (100) according to claim 3, wherein the stud (114) comprises a sliding surface (116) configured to, when the locking device (107) is in the unlocking configuration and the adjusting means (105) are in the coupling configuration, slide on the connecting element (104) when said force (Fl) is exerted in order to allow the stud (114) to be extracted from the adjusting hole (115) in which it is inserted, resulting in the transition from the coupling configuration to the uncoupling configuration.

5. Cleat (100) according to claim 4, wherein the sliding surface (116) is a flat oblique face and wherein each adjustment hole (115) includes an edge comprising, on the side of the second part (103), a straight portion (117) suitable for cooperating with the oblique face.

6. Cleat (100) according to any one of claims 1 to 5, wherein the adjustment means (105) comprise a body (118) integral with the frame (102) of the first part (101), the body (118) having, in the coupling configuration, an original state and being configured to, in the unlocking configuration of the locking device (107): • exhibit elastic deformation during the transition from the coupling configuration to the uncoupling configuration; • transition, by automatic return to the original state, from the uncoupling configuration to the coupling configuration.

7. Cleat according to claim 6, in which the body (118) is configured so that, during the relative movement between the first part (101) and the connecting element (104) which induced the automatic transition from the coupling configuration to the uncoupling configuration, it allows an automatic transition from the uncoupling configuration to the coupling configuration, from which it results that the length adjustment of the newly obtained cleat (100) corresponds to a decrease in the length of the cleat (100).

8. Crampon (100) according to any one of claims 1 to 7, wherein the locking device (107) comprises a locking element (120) having a mobility capability relative to the frame (102) and the adjustment means (105), said locking element (120) being configured to vary, according to its mobility capability, between: • a first configuration in which, in the coupling configuration, the locking element (120) opposes the transition from the coupling configuration to the uncoupling configuration; • a second configuration in which the transition from the coupling configuration to the uncoupling configuration is permitted.

9. Crampon (100) according to claim 6 and claim 8, wherein, when the locking element (120) is in the first configuration and the adjusting means are in the coupling configuration, the locking element (120) cooperates with the linking element (104) to hold the adjusting means (105) so as to oppose the transition from the coupling configuration to the uncoupling configuration.

10. Cleat (100) according to claims 8 and 9, wherein: • the body (118) is connected to the frame (102) of the first part (101) at a connecting region (125); • the locking element (120) is a ring through which the body (118) passes and which is slidably mounted relative to the body (118); • in the first configuration of the locking element (120), while the adjusting means (105) are in the coupling configuration, the ring surrounds a portion of the connecting element (104) in order to prevent at least a portion of the body (118) from separating from the connecting element (104) and allowing the transition from the coupling configuration to the uncoupling configuration; • in the second configuration of the locking element (120), the ring does not oppose the elastic deformation of the body (118) allowing the passage from the coupling configuration to the uncoupling configuration.

11. Cleat (100) according to any one of claims 8 to 10, wherein the locking device (107) comprises a locking member (121) configured to selectively adopt: • a first configuration in which the locking member (121) opposes the passage of the locking element (120) from its first configuration to its second configuration; • a second configuration in which the locking member (121) permits the passage of the locking element (120) from its first configuration to its second configuration.

12. Cleat (100) according to claim 11, wherein: • the locking member (121) is a spring blade; • the second configuration of the locking member (121) corresponds to a compression state of the spring blade; • The spring blade is configured to vary between a first state and a second state, the transition from the first state to the second state being accompanied by a compression of the spring blade; • In the first configuration of the locking member (121), while the locking element (120) is in its first configuration, the blade is in its first state and forms a stop (126) opposing the transition of the locking element (120) from its first configuration to its second configuration; • The cleat (100) is configured so that the transition of the locking element (120) from its first configuration to its second configuration is permitted following the transition of the spring blade from its first state to its second state.

13. Crampon (100) according to any one of claims 1 to 12, wherein the frame (102) of the first part (101) comprises a cross member (122) and at least one guide element (123a, 123b) extending from the cross member (122), the connecting element (104) cooperating with said at least one guide element (123a, 123b) so as to guide the ability to move.

14. Crampon (100) according to any one of claims 1 to 13, wherein the crampon (100) comprises a length adjustment configuration in which the connecting element (104) and the second part (103) are coupled so as to: • have a degree of freedom relative to each other along the connecting element (104) strictly less than a value of the relative displacement between the first part (101) and the connecting element (104) during a variation of the length adjustment of the crampon (100) between two adjacent adjustment positions (106) along the connecting element (104); or • such that any relative movement between the connecting element (104) and the second part (103) in a direction along the length of the connecting element (104) is prevented.

Images