puck system for stick

Abstract

Title: Stick washer system The invention relates to a stick washer system comprising two washers (1, 2) configured to cooperate with each other, the first washer (1) comprising a connecting body (10) and a means of fixing (102) to said stick, a first bearing face (11) peripheral to the connecting body (10), first assembly structures (12) on an external periphery (110) of the first bearing face (11), the second washer (2) comprising an opening (20) configured to receive the first washer (1), a second bearing face (21) peripheral to said opening (20), second assembly structures (22) on an internal periphery (210) of the second bearing face (21), intended to cooperate with the first assembly structures (12) of the first washer (1).Advantageously, the second assembly structures (22) of the second washer (2) are elastically deformable so that the second washer (2) assembles with the first washer (1) by elastic deformation of the second assembly structures (22). The invention also relates to a method for assembling this system. Figure for the abstract: Fig. 6A.

Description

Title of the invention: Baton washer system technical field

[0001] The present invention relates to the field of sports poles such as hiking or ski poles. Its particularly advantageous application lies in the assembly of different baskets, typically summer and winter baskets, on a hiking pole in various assembly configurations. STATE OF THE ART

[0002] Trekking poles are generally equipped with baskets at their ends designed to make contact with the ground. The main function of these baskets is to provide support to limit the pole's penetration into the ground. Depending on the type of ground, different baskets can be used. For example, in summer or on hard ground, the resistance to penetration of the pole tip is significant. In this case, a basket with a small contact surface is sufficient. A pole equipped with such a basket is lighter and offers good maneuverability. In winter or on soft ground, the resistance to penetration of the pole tip is less. In this case, a basket with a larger contact surface is necessary.

[0003] A traditional solution is to change the pucks depending on the season and / or conditions. This allows for two stick configurations. However, it is sometimes useful to have more configurations or greater versatility in stick configurations, particularly to adapt the equipment more precisely to the conditions encountered locally or at specific times.

[0004] Document EP2083929 B1 discloses a system comprising a first hinged washer attached to the pole, with a small bearing surface, onto which a second washer can be attached to increase the total bearing surface. The first washer thus remains permanently attached to the pole, and the second washer provides additional bearing surface when necessary. This configuration with an increased bearing surface is, however, not optimal for all snow conditions, particularly when the snow is soft and wet.

[0005] Document FR2686801 Al discloses another solution for varying both the support surface and the support height relative to the tip of the pole. This known device comprises a first washer mounted in a lower position on the pole and a second washer mounted in a higher position on the pole and configured to deploy according to the degree of penetration of the pole into soft snow. The pole equipped with this device is thus more versatile. One drawback of this solution is that it increases the weight of the pole.

[0006] One object of the present invention is to overcome at least in part the disadvantages of known solutions.

[0007] Another object of the present invention is to propose an optimized washer system, offering possibilities for adaptation to different conditions and soil types.

[0008] Another object of the present invention is to propose a method of using or assembling this washer system.

[0009] The other objects, features and advantages of the present invention will become apparent from an examination of the following description and accompanying drawings. It is understood that other advantages may be incorporated. SUMMARY

[0010] To achieve this objective, a first aspect of the invention relates to a system of washers for a pole, typically a hiking or ski pole, comprising a first washer and a second washer configured to cooperate with each other.

[0011] The first washer comprises: • A connecting body comprising: • an opening suitable for receiving one end of a stick, and • a means of attaching said stick, • A first peripheral support face attached to the connecting body and integral with the connecting body, • First assembly structures supported by the first bearing face, said first assembly structures preferably extending from an external perimeter of the first bearing face.

[0012] The second washer comprises: • An opening configured to accommodate the first puck, • A second peripheral support face for said opening, • Second assembly structures carried by the second bearing face and intended to cooperate with the first assembly structures of the first washer, said second assembly structures preferably extending from an internal periphery of the second bearing face.

[0013] Advantageously, the second assembly structures of the second washer are elastically deformable so that the second washer assembles with the first washer by elastic deformation of the second assembly structures.

[0014] The second bearing face preferably carries the second assembly structures on its inner periphery. When the first and second washers are assembled, the second bearing face can therefore be seen as being elastically articulated with respect to the first bearing face, via said second assembly structures. When skiing, walking or running, the second support surface This presents a greater freedom of movement than the first bearing surface. The movement and / or vibrations transmitted to the second bearing surface advantageously allow for easier removal from soft or wet substrates, typically soil or soft, wet snow. In the solution disclosed by document EP2083929 Bl, the rotation-translation assembly requires that the first and second washers be equally rigid, typically made of the same material. This prevents any freedom of movement of the second washer relative to the first. In soft, wet snow conditions, snow tends to stick to rigid surfaces. Increasing the rigid surface area increases the likelihood of snow sticking in such conditions, and thus adds weight to the end of the pole.On the contrary, in the present invention, the deformation assembly is designed to offer an effective assembly while allowing a certain freedom of movement for the second bearing face. The washer system is thus optimized for different soil substrate conditions, particularly for soft and wet snow.

[0015] Preferably, the second assembly structures of the second washer exhibit a greater degree of flexibility than the first assembly structures of the first washer. This method of designing a flexible assembly part – the second assembly structures – on a relatively more rigid assembly part – the first assembly structures – makes it possible both to improve the reliability of the assembly and to allow for deformation of the second bearing surface relative to the first bearing surface.

[0016] Preferably, the second washer is made of a second material having a flexibility between 40 and 70 shore A, while the first washer is made of a first material having a flexibility greater than or equal to 80 shore A.

[0017] According to one possibility, the first washer comprises a connecting body whose orifice preferably has a symmetry defining an axis of symmetry, referred to as the longitudinal axis. Preferably, the connecting body is elongated along this longitudinal axis. This connecting body is, for example, frustoconical in shape. In this case, the means for attaching it to the stick is advantageously located at a first end of the connecting body, while the first bearing surface is located at a second, opposite end of the connecting body. The first bearing surface and the fastening means are thus separated by a distance d along this longitudinal axis. This longitudinal offset between the fastening means and the first bearing surface allows for two height positions of the first bearing surface relative to the area for attaching it to the stick, by reversing the direction in which the first washer is positioned on the stick, along the longitudinal axis.Thus, in the "summer" position for example, the first support face is relatively close to the ground, while in . In the "winter" position, the first contact surface is further from the ground. The "summer" and "winter" positions are separated by a distance of 2d along the longitudinal axis. This increases the penetration depth into soft ground such as snow. In addition to the increased contact area due to the addition of the second basket, the pole's grip on soft ground is also improved. This further increases the number of possible configurations for a pole equipped with such a basket system. The basket system allows for the advantageous adaptation of skiing or hiking techniques to different conditions.

[0018] Another aspect of the invention relates to a method for assembling a washer system according to the first aspect of the invention, comprising: • Insert the connecting body of the first washer into the opening of the second washer, • Elastically deform the second assembly structures of the second washer so as to assemble them with the first assembly structures of the first washer. In one example, this assembly is achieved by applying a radial and / or axial force about an axis of symmetry of the opening of the second washer. The force is preferably applied both radially and axially, about the axis of symmetry of the opening of the second washer.

[0019] The assembly of the first and second washers is advantageously done manually, typically by pulling radially and / or axially on the second washer to elastically deform the second assembly structures and fit them onto the first assembly structures.

[0020] A particular aspect of the invention relates to a hiking or ski pole equipped with a washer system as described above. BRIEF DESCRIPTION OF THE FIGURES

[0021] The aims, objects, features and advantages of the invention will become clearer from the detailed description of embodiments thereof, which are illustrated by the following accompanying drawings in which:

[0022] [Fig.1A]

[0023] [Fig.1B] Figures IA and IB illustrate in perspective a first washer according to an embodiment of the present invention.

[0024] [Fig.lC] The [Fig.lC] illustrates in longitudinal section a first washer according to an embodiment of the present invention.

[0025] [Fig.2A]

[0026] [Fig.2B] Figures 2A and 2B illustrate in perspective a second washer according to an embodiment of the present invention.

[0027] [Fig.2C] The [Fig.2C] illustrates in longitudinal section a second washer according to an embodiment of the present invention.

[0028] [Fig.3A]

[0029] [Fig.3B] Figures 3A and 3B illustrate in perspective a first washer and a second washer assembled according to an embodiment of the present invention.

[0030] [Fig.3C] The [Fig.3C] illustrates in longitudinal section a first washer and a second washer assembled according to an embodiment of the present invention.

[0031] [Fig.4A] [Fig.4A] illustrates a pointed tip according to an embodiment of the present invention.

[0032] [Fig. 4B] Figure 4B illustrates a damping element according to an embodiment of the present invention.

[0033] [Fig.4C] Fig.4C illustrates a damping element and a tip end assembled according to an embodiment of the present invention.

[0034] [Fig.5A] The [Fig.5A] illustrates a first washer fixed to a pointed tip in a first position, according to an embodiment of the present invention.

[0035] [Fig.5B] The [Fig.5B] illustrates a first washer fixed to a pointed tip in a second position, according to an embodiment of the present invention.

[0036] [Fig.6A]

[0037] [Fig.6B] Figures 6A and 6B illustrate first and second washers assembled together, the first washer being fixed to a pointed tip in a second position, according to an embodiment of the present invention.

[0038] The drawings are given by way of example and are not limiting of the invention. They constitute schematic representations of the principle intended to facilitate understanding of the invention and are not necessarily to scale with practical applications. In particular, the dimensions of the various elements (first and second washers, end caps, tips, etc.) may vary from the proportions illustrated in the schematic diagrams. DETAILED DESCRIPTION

[0039] Before proceeding with a detailed review of embodiments of the invention, optional features that may be used in combination or alternatively are listed below:

[0040] According to one example, the first bearing face extends along a plane transverse to a longitudinal axis of the stick when the connecting body is fixed to said stick. The first bearing face is not hinged with respect to the stick.

[0041] According to one example, when the second washer is assembled to the first washer and when the connecting body of the first washer is fixed to the stick, the second bearing face extends along a plane transverse to a longitudinal axis of the stick. at rest, that is to say without particular stresses, the second support face typically extends the first support face.

[0042] According to one example, the second assembly structures deform radially around the opening, along directions from a plane transverse to an axis. This axis can be an axis of revolution or symmetry for the opening of the second washer, or even an axis of revolution or symmetry for the second washer. When the second washer is assembled to the first washer and when the connecting body of the first washer is fixed to the rod, this axis corresponds to the longitudinal axis of the rod.

[0043] According to one example, the second assembly structures deform axially, along directions parallel to the longitudinal axis of the rod. According to another example, the second assembly structures deform both axially and radially.

[0044] According to one example, the cooperation between the first and second assembly structures is such that, when the second assembly structures are elastically deformed to join the second washer with the first washer, an inner perimeter of the second bearing face moves beyond an outer perimeter of the first bearing face in a radial direction common to the first and second bearing faces, and, when the second assembly structures are joined with the first assembly structures, the outer perimeter of the first bearing face extends beyond the inner perimeter of the second bearing face in the radial direction. There is at least one radial deformation component during the elastic deformation joining of the second washer to the first washer.

[0045] According to one example, the cooperation between the first and second assembly structures is such that, when the second assembly structures are elastically deformed to assemble the second washer with the first washer, the inner periphery of the second bearing face moves beyond the outer periphery of the first bearing face in an axial direction parallel to the longitudinal axis of the rod, typically in a direction of engagement of the second washer with the first washer. There is at least one axial deformation component during the elastic deformation assembly of the second washer with the first washer. During assembly, the axial deformation component may be greater than the radial deformation component.Typically, during the elastic deformation assembly of the second assembly structures, said second assembly structures are brought beyond the first assembly structures, along axial and radial directions, and then fitted into the first assembly structures by releasing the deformation force. Since the deformation is elastic, the second assembly structures can retain essentially their initial shape after assembly onto the first assembly structures, that is to say... that is to say, in an "assembled" configuration. According to an example, the shapes of the first and second assembly structures are complementary.

[0046] By way of example, the displacement of the inner perimeter during the elastic deformation of the second assembly structures to assemble the second washer with the first washer has an amplitude of at least 3 mm, and preferably at least 5 mm, in the radial direction. This typically means that there is an overlap or overlap between the first and second assembly structures in the assembled configuration of at least 3 mm or more. The support provided by the first assembly structures to the second assembly structures, or vice versa, is thus sufficiently extensive. This ensures a reliable assembly.

[0047] According to one example, the displacement of the inner perimeter, during the elastic deformation of the second assembly structures to assemble the second washer with the first washer, has an amplitude of at least 3 mm, and preferably at least 5 mm, along the axial direction.

[0048] According to one example, the first washer is made of a first material and the second washer is made of a second material that is more flexible than the first material, said second material having a flexibility between 40 and 70 shore A.

[0049] According to one example, some of the first and second assembly structures include lugs, and others of the first and second assembly structures include so-called upper portions and so-called lower portions, the upper portions being intended to cover said lugs during assembly and the lower portions being intended to bear beneath said lugs during assembly. The lugs are thus sandwiched between the lower and upper portions. The assembly is thus made more reliable.

[0050] According to one example, the first assembly structures include the lugs.

[0051] According to one example, the second assembly structures comprise upper and lower portions, the upper portions extending continuously from the second bearing face, and the lower portions are configured to bear against the connecting body. The connecting body of the first washer thus forms a support for the lower portions of the second assembly structures of the second washer. The assembly is further improved.

[0052] According to one example, the lugs comprise housings and the lower portions comprise teeth, said teeth being configured to fit into the housings of the lugs during assembly. The assembly is further improved. In particular, the teeth can be configured to limit or prevent rotational movement of the second washer relative to the first washer, about an axis passing through the center of the first and second washers.

[0053] According to one example, the second washer has a bearing surface at least twice, and preferably at least four times, greater than the bearing surface of the first washer. This significantly increases the total bearing surface of the system. The bearing surface can be estimated by projecting it onto a plane normal to an axis of symmetry or revolution of the washer in question. When the second washer is assembled to the first washer and the connecting body of the first washer is fixed to the rod, this axis corresponds to the longitudinal axis of the rod.

[0054] According to one example, the second bearing face of the second washer comprises fins and slots in at least some of these fins, said slots being shaped to allow a user's finger to pass through during the assembly of the second washer onto the first washer by elastic deformation of the second assembly structures. This facilitates gripping and manipulation by the user with a finger during the assembly of the second washer onto the first washer. These slots can also lighten the second washer. They can also serve as a housing for the tip of another stick, for example, for storing or transporting a pair of sticks.

[0055] According to one example, the connecting body of the first washer is elongated along a longitudinal axis and has a frustoconical shape with a first end of smaller cross-section and a second end of larger cross-section. The means for attaching it to the rod is preferably located at the first end, and the first bearing surface is preferably located at the second end, such that the first bearing surface and the means for attaching it are separated by a non-zero separation distance d measured along the longitudinal axis. This allows for a vertical offset, along the longitudinal axis, between the means for attaching it and the first bearing surface.

[0056] According to one example, the separation distance d is greater than 20 mm.

[0057] According to one example, the first washer is configured to be fixed to the stick according to: • a first position in which the first bearing face is turned towards a distal end of the stick intended to be in contact with the ground, and according to • a second position in which the first bearing face is turned back, towards a proximal end of the stick opposite to the distal end along the longitudinal axis, said proximal end being intended to bear a handle.

[0058] These two positions increase the number of possible configurations for a puck system equipping a stick. In particular, the first position, where the first bearing face is close to the ground, typically corresponds to use on hard surfaces, for example on ice or hard snow, or more commonly on hard surfaces These positions are typically used in dry conditions, outside of the winter season. This first position is also referred to as the "summer" position hereafter. The second position, where the first support face is further from the ground, typically corresponds to use on soft ground, such as snow. This second position is also referred to as the "winter" position hereafter.

[0059] In one example, the first bearing face has a first concavity and the second bearing face has a second concavity. In another example, the first and second concavities are oriented in opposite directions along the longitudinal axis when the first and second washers are assembled. The concavities thus face each other in the assembled configuration. The mechanical forces along the longitudinal axis are better distributed across the washers. This improves the support provided by one washer to the other.

[0060] By way of example, in the second position of the first washer, the first concavity is directed towards the proximal end of the stick and the second concavity is directed towards the distal end of the stick when the first and second washers are assembled. In the winter position, the first washer is reversed so that the first bearing surface is oriented "upwards," while the concavity of the second bearing surface is oriented "downwards," and the second bearing surface partially covers the edges or first assembly structures of the first washer. This provides better support for the second washer.

[0061] According to one aspect, a hiking or ski pole is provided comprising a system of washers as described in the invention and comprising: • at least one tube oriented along a longitudinal axis, • a handle located at a proximal end of at least one tube, • a point located at the distal end of at least one tube, • a fixing zone configured to cooperate with the fixing means of the first washer, the fixing area being located on the distal end side.

[0062] According to one example, the method for assembling the first and second washers comprises: • Insert the connecting body of the first washer into the opening of the second washer, • Deform the second assembly structures of the second washer so that they can be assembled with the first assembly structures of the first washer, • Before or after assembling the second washer, attach the first washer to the stick according to the second position.

[0063] The steps of the assembly or mounting process can typically be reversed so as to obtain a disassembly or dismantling process.

[0064] According to one example, all the steps of the assembly or disassembly process are carried out manually, i.e. without tools.

[0065] Except in cases of incompatibility, it is understood that all the above optional features can be combined to form an embodiment that is not necessarily illustrated or described. Such an embodiment is obviously not excluded from the invention. The features of one aspect of the invention, for example the system, the method, or the stick, can be adapted mutatis mutandis to another aspect of the invention.

[0066] It is specified that, within the framework of the present invention, the terms "on", "overcomes", "covers", "underlying", "opposite" and their equivalents do not necessarily mean "in contact with".

[0067] An element "based" on a material A is understood to be an element comprising only that material A or that material A and possibly other materials, for example, alloying elements. Thus, a carbon-based tube is typically understood to be a tube made of carbon fibers and a binder. An elastomer-based washer may comprise that elastomer alone or that elastomer with mineral fillers.

[0068] Several embodiments of the invention implementing successive steps of the assembly / disassembly process are described below. Unless explicitly stated, the adjective "successive" does not necessarily imply, although this is generally preferred, that the steps follow each other immediately; intermediate steps may separate them.

[0069] Furthermore, the term "step" refers to the execution of a part of the process, and can designate a set of sub-steps.

[0070] Furthermore, the term "step" does not necessarily mean that the actions carried out during a step are simultaneous or immediately successive. Certain actions of a first step may, in particular, be followed by actions related to a different step, and other actions from the first step may be repeated later. Thus, the term "step" does not necessarily imply unitary actions that are inseparable in time and in the sequence of phases of the process.

[0071] A preferably orthonormal coordinate system, comprising the x, y, z axes, is shown in the accompanying figures. When only one coordinate system is shown on the same sheet of figures, this coordinate system applies to all the figures on that sheet.

[0072] In the present patent application, the longitudinal axis is oriented along the z-axis. The relative terms "on", "surmounts", "under", "underlying", "intercalated" refer to positions taken along the z-direction.

[0073] The terms "longitudinal", "axial", "vertical", "vertically" refer to a direction along z. The terms "horizontal", "horizontally", "lateral", "laterally", "radial", "radially" refer to a direction in a plane transverse to the z-axis, typically in the xy plane.

[0074] In the context of the present invention, a tube is an elongated element, preferably hollow for at least half its length. It has a preferably circular cross-section. Other cross-sectional shapes are nevertheless perfectly conceivable.

[0075] The terms "tube" and "strand" are used synonymously. A "fastening means" can be a "fastening element". A "retaining means" can be a "retaining element".

[0076] A particular application of the invention relates to a hiking pole. More generally, a hiking pole is understood to be a pole for walking, for trail running, for ski touring, or for any activity using a pole. The generic term "hiking pole" thus refers to different types of poles, which may be more specifically designed for running, walking, or skiing. A ski touring pole, in particular, may have larger tube sections than a running pole to stiffen the pole (the force exerted on the pole being typically greater when skiing than when running).

[0077] The washer system according to the present invention can advantageously have different configurations. When the two washers are assembled together, this is referred to as the assembled configuration. When the first washer is attached to the pole, with or without the second washer, depending on the first position, this is referred to as the summer configuration. When the first washer is attached to the pole, with or without the second washer, depending on the second position, this is referred to as the winter configuration.

[0078] In the context of the present invention, the second washer is typically at least partially more flexible than the first washer. The flexibility of a material, particularly the flexibility of an elastomer, can be characterized according to a Shore scale. The main Shore scales are Shore A (for soft materials) and Shore D (for hard materials), graduated from 1 to 100. The ranges of these two scales partially overlap. For example, a flexibility (or hardness) of 80 Shore A corresponds approximately to 30 Shore D.

[0079] The deformations of the parts of the second washer are typically generated by relative movements with respect to the first washer. For example, a reference frame linked to the first washer during the assembly or disassembly phase of the washers will be chosen to describe the forces, in particular the tensile forces, applied to the second washer.

[0080] The first and second washers have bearing surfaces corresponding substantially to the surfaces projected in the xy plane of the first and second bearing faces, respectively.

[0081] Figures IA to IC illustrate a first washer 1 according to a particular embodiment of the invention. As illustrated, the washer 1 comprises a connecting body 10 and a first bearing face 11 on the periphery of the connecting body 10. Preferably, at least some parts of the washer 1 have rotational symmetry about an axis z, referred to as the longitudinal axis z. Alternatively or in combination, some parts of the washer 1 have asymmetry. For example, the bearing face 11 is not necessarily circular. It may be inscribed within a portion of a disk, for example, within a half-disk. Preferably, however, the bearing face 11 has rotational symmetry about the axis z, as illustrated in [Fig. 1A].

[0082] The bearing face 11 extends generally transversely to the longitudinal axis z. It is attached to the connecting body 10 at its inner periphery. The bearing face 11 extends into first assembly structures 12 on its outer periphery 110. These first assembly structures 12 may include lugs 121 and preferably housings 122. The lugs 121 provide the washer 1 with a good gripping profile when used alone on a hiking or ski pole, typically in summer configuration.

[0083] In this embodiment of the washer 1, the connecting body 10 is elongated along the longitudinal axis z and has a hollow frustoconical shape, forming an opening 101. The opening 101 accommodates the rod, typically at a distal end of the rod comprising a point, referred to as the point end. The connecting body 10 includes a fastening means 102 configured to attach the washer 1 to the rod. This fastening means 102 may be in the form of a threaded hole, preferably a threaded hole with a quarter-turn thread. Other fastening means 102 may be considered, such as grooves or, more generally, interlocking structures. However, screw fastening is typically more reliable than interlocking fastening. Screwing with a quarter-turn thread makes the operation of attaching to the rod faster than with a traditional thread.

[0084] The frustoconical connecting body 10 allows the position of the bearing face 11 relative to the fastening means 102 to be offset along the z-axis by a distance d ([Fig. 1C]). This distance d is preferably greater than 20 mm, and preferably greater than 25 mm, and preferably on the order of 30 mm or even 35 mm. This offset makes it possible to obtain two height positions of the bearing face 11 relative to the tip of the pole when the washer 1 is fixed to the pole in summer or winter configuration. A washer 1 formed according to this particular embodiment is called a washer reversible in the following. Other first washers, whose connecting body is not elongated or frustoconical, can also be suitable for implementing the washer system according to the invention. A connecting body limited to the inner periphery of the first bearing face, without significant extension along z, is perfectly feasible for the first washer 1.

[0085] The washer 1 is preferably made of a plastic material, for example, polypropylene filled with mineral particles, or high-impact polyamide. The washer 1 thus has a hardness preferably greater than or equal to 50 Shore D, and preferably greater than or equal to 70 Shore D. This provides good wear resistance for the washer 1. The durability of the washer 1 is important.

[0086] Figures 2A to 2C illustrate a second washer 2 according to an embodiment of the invention. As illustrated, the washer 2 comprises an opening 20 and a second bearing face 21 around the periphery of the opening 20. Preferably, at least some parts of the washer 2 have rotational symmetry about the longitudinal axis z. Alternatively, or in combination, some parts of the washer 2 have asymmetry.

[0087] For example, the bearing face 21 is not necessarily circular. It can be inscribed in a portion of a disk, for example in a half-disk. Preferably, however, the bearing face 21 is inscribed in a disk around the z-axis, as illustrated in [Fig. 2A].

[0088] The bearing face 21 extends generally transversely to the longitudinal axis z. It can have various shapes. As illustrated in Figures 2A and 2B, it can, in particular, include fins 211. At least some of these fins 211a can be provided with openings 212. As illustrated, the bearing face 21 can comprise six fins 211 and three openings 212 distributed within every other fin. The solid fins 211b increase the bearing surface of the bearing face 21. The solid fins 211b typically have a nominal flexibility, corresponding to the flexibility of the material from which these fins are formed. In one possibility, reinforcing structures, for example ribs of various shapes, can be provided under the fins 211b to stiffen them. The load-bearing capacity of the support face 21 is thus improved. According to one possibility, these reinforcing structures can be provided under the fins 21la. On the [Fig.[2B], reinforcement structures in the form of hexagonal ribs are illustrated.

[0089] The slots 212 typically increase the flexibility of the fins 21a. This makes it possible to increase the amplitude of a flexion-extension movement of the fins 211a, for example when the bearing face 21 comes into contact with heavy, wet snow. This then improves snow removal. The slots 212 They can also be used for gripping washer 2. They can help to reduce the weight of washer 2.

[0090] The washer 2 is preferably made of an elastomeric material, for example, a thermoplastic polyurethane elastomer such as Elastollan®. The washer 2 thus has a flexibility preferably less than or equal to 70 Shore A, and preferably between 40 and 70 Shore A. This allows for significant elastic deformation under moderate stress.

[0091] The inner periphery 210 of the bearing face 21 carries second assembly structures 22. These second assembly structures 22 are configured to be assembled with the first assembly structures 12. The first and second assembly structures 12, 22 typically have complementary shapes, configured to fit together. The second assembly structures 22 may include upper portions 221 and lower portions 222. The lower portions 222 may be provided with teeth 223. The lower portions 222 may form a bearing structure intended to come against the connecting body of the first washer 1. In Figures 2A, 2B, this bearing structure is annular and joins the various lower portions 222.

[0092] The cooperation between the first and second assembly structures 12, 22, in particular between the different elements of these assembly structures (lugs, lower and upper portions, housings, annular structure etc), will be better understood with reference to figures 3A, 3B, 3C illustrating the assembled configuration of the first and second washers 1, 2.

[0093] As illustrated in [Fig. 3A], in the assembled configuration, the upper portions 221 of the second washer 2 overlap the lugs 121 of the first washer 1 (not visible). The diameter of the inner circumference 210 of the bearing face 21 is typically smaller than the diameter of the outer circumference 110 of the bearing face 11 (not visible). The diameter of the inner circumference 210 is, for example, at least 6 mm, and preferably at least 10 mm, smaller than the diameter of the outer circumference 110. This provides a radial overlap of at least 3 mm, and preferably at least 5 mm, between the two bearing faces 11, 21. The teeth 223 of the second washer 2 fit into the recesses 122 of the first washer 1. Specifically, the teeth 223 are typically supported by the lower portions 222 of the second washer 2 and fit into the recesses 122 from below. This secures the assembly of the first and second washers 1 and 2.The upper portions 221 and the lower portions 222 of the second assembly structures 22 are typically configured to enclose the first assembly structures 12, respectively from above and from below.

[0094] As illustrated in [Fig.3B], the lugs 121 of the first assembly structures 12 can form a support for the upper portions 221 of the second assembly structures 22. The lower portions 222 are here located under the lugs 121 and preferably bear on the connecting body 10. The assembly is thus made more reliable.

[0095] As illustrated in [Fig. 3C], in the assembled configuration, the total bearing surface of the washer system 1, 2 is significantly increased. The second bearing face 21 extends substantially continuously and around the periphery of the first bearing face 11. In this longitudinal sectional figure, the interaction between the first and second assembly structures 12, 22 is clearly illustrated. In particular, the upper portions 221 cover the lugs 121, and the lower portions 222 bear beneath said lugs 121 and against the connecting body 10. In this embodiment, the first bearing face 11 has a first concavity oriented along +z in [Fig. 3C], and the second bearing face 21 has a second concavity oriented along -z in [Fig. 3C]. This configuration with opposing concavities improves the mechanical strength of the assembly.

[0096] To assemble the first and second washers 1, 2 as illustrated in Figures 3A-3C, the following assembly steps are preferably carried out: • position the first washer 1 so that the concavity of the first bearing face 11 is oriented along +z, i.e. upwards on [Fig. 3C], • position the second washer 2 so that the concavity of the second bearing face 21 is oriented along -z, i.e. downwards on [Fig. 3C], • insert the connecting body 10 of the first washer 1 into the opening 20 of the second washer 2, so as to bring the second assembly structures 22 under the first assembly structures 12, • radially align the lugs 121 with the fins 211, and preferably the teeth 223 with the housings 122, • elastically deform the second assembly structures 22 by successively pulling on the fins 211 of the second bearing face 21, so as to pass the upper portions 221 over the lugs 121, the traction typically being in a radial direction of a plane transverse to the longitudinal direction z, and in an axial direction, i.e. parallel to the longitudinal direction z.

[0097] To disassemble the first and second washers 1, 2, the disassembly or dismantling steps indicated below should preferably be carried out: • elastically deform the second assembly structures 22 by successively pulling on the fins 211 of the second support face 21, so as to pass the upper portions 221 under the lugs 121, the traction typically occurring along a radial direction of a plane transverse to the longitudinal direction z, and along an axial direction, that is to say parallel to the longitudinal direction z, • disengage the connecting body 10 from the opening 20.

[0098] The washer system 1, 2 is configured to cooperate with a distal end of a trekking pole. Such a distal end typically includes a tip and preferably a shock-absorbing element interposed between the tip and the pole. This shock-absorbing element is typically configured to dampen or absorb shocks experienced by the tip and to attenuate or eliminate the transmission of these shocks into the pole.

[0099] Fig. 4A illustrates an example of a tip 3 intended to carry the tip of the stick. In this example, the tip 3 comprises a body 30 elongated along z, the cross-section of which decreases towards the end 34 configured to receive the tip of the stick. The body 30 typically includes two openings 31 for receiving retaining parts of the damping element. The body 30 also includes a mounting area 32 configured to cooperate with the fastening means 102 of the first washer 1. The mounting area 32 can typically be in the form of a thread suitable for engaging with the tapped hole in the washer 1. The mounting area 32 is typically located at a distance h from the end 34 along the longitudinal direction z, for example, between 35 mm and 70 mm. The body 30 also preferably includes an annular ring 33 for bearing against a damping part of the damping element. The tip 3 is made of a hard plastic material, for example, filled polypropylene.

[0100] Fig. 4B illustrates an example of a shock-absorbing element 4 intended to cooperate with the tip 3 and with a hiking pole. In this example, the shock-absorbing element 4 comprises a body 40 elongated along z and a damping portion 42. The body 40 has a preferably beveled end 44, designed to fit within the body 30 of the tip 3. The body 40 also preferably includes retaining portions 41 projecting from the body 40, designed to fit into the openings 31 of the body 30. Additional fastening means, for example screws 46, may be provided for assembling the body 40 with the body 30. The damping portion 42 typically has an end 45 designed to accommodate a tube of the trekking pole, and an overhang 43 designed to bear against the annular ring 33 of the tip 3. The shock-absorbing element 4 is typically made of a plastic material that is relatively more flexible than the material of the tip 3.

[0101] Figure 4C illustrates an end piece 3 and a damping element 4 assembled together. In this assembly configuration, the retaining parts 41 of the damping element 4 are engaged in the openings 31 of the end piece 3, and the overhang 43 of the damping part 42 rests against the annular ring 33 of the end piece 3. In the following, The tip 3 and the shock-absorbing element 4 assembled form a pointed end of a hiking pole.

[0102] Figures 5A and 5B illustrate two mounting positions for a first reversible washer 1 on such a tip end of a trekking pole. In both cases, the fastening means 102 – typically the threaded hole 102 in the washer 1 – cooperate with the fastening area 32 – typically a thread – of the tip 3. The two mounting positions differ in the orientation of the reversible washer 1 relative to the tip end of the pole.

[0103] As illustrated in [Fig. 5A], in a first position, according to a so-called summer configuration, the reversible washer 1 is mounted so that the first bearing face 11 is turned towards the end 34 of the tip 3, which is intended to support the point of the stick. The concavity of the bearing face 11 is typically oriented towards the end 34. In this summer configuration, the bearing face 11 is close to the ground when the stick is in use. The bearing face is brought to a distance hd from the end 34.

[0104] As illustrated in [Fig. 5B], in a second position, according to a so-called winter configuration, the reversible washer 1 is mounted so that the first bearing face 11 is turned towards the opposite end 34 of the tip 3, typically towards the end 45 of the shock-absorbing element 4. The concavity of the bearing face 11 is typically oriented towards the end 45. In this winter configuration, the bearing face 11 is relatively far from the ground when the pole is in use. The bearing face 11 is brought to a distance h+d from the end 34.

[0105] Figures 6A and 6B illustrate a system of 1, 2 washers in their assembled configuration, mounted in a winter configuration on the tip of the pole. Advantageously, the total bearing surface is both increased and moved further away from the tip 34. This typically allows for better performance in soft snow conditions. Other configurations not shown, for example, the 1, 2 washers in their assembled configuration mounted in a summer configuration, are also possible.

[0106] The basket system according to the invention thus allows for several configurations in combination with the tip of a hiking or ski pole. This makes it possible to adapt the equipment to the terrain conditions encountered. The assembly between the first and second baskets by elastic deformation advantageously allows for the mounting of a second basket that is more flexible than the first, while benefiting from the rigid support provided by the first basket attached to the pole. This typically allows for handling heavy snow conditions.

[0107] The invention is not limited to the embodiments described above. In particular, different complementary forms between the first and second Assembly structures can be designed or implemented by a person skilled in the art, without deviating from the principle described in this application. Different washer shapes and / or different washer concavities may also be suitable.

Claims

Demands

1. A puck system for a stick comprising a first puck (1) and a second puck (2) configured to cooperate with each other, the first puck (1) comprising: • A connecting body (10) comprising • an opening (101) suitable for receiving one end of a stick, and • a means of fixing (102) said stick, • A first bearing face (11) peripheral to the connecting body (10) and integral with the connecting body (10), • The first assembly structures (12) supported by the first bearing face (11), the second disc (2) comprising: • An opening (20) configured to accommodate the first puck (1), • A second peripheral support face (21) to said opening (20), • Second assembly structures (22) supported by the second bearing face (21) and intended to cooperate with the first assembly structures (12) of the first washer (1), The washer system being characterized in that the second assembly structures (22) of the second washer (2) are elastically deformable so that the second washer (2) assembles with the first washer (1) by elastic deformation of the second assembly structures (22), and in that the cooperation between the first and second assembly structures (12, 22) is such that, when the second assembly structures (22) are elastically deformed to assemble the second washer (2) with the first washer (1), the inner perimeter (210) of the second bearing face (21) moves beyond the outer perimeter (110) of the first bearing face (11) in an axial direction (z) substantially perpendicular to the first and second bearing faces (11, 21), in a direction of engagement of the second washer (2) on the first washer (1).

2. System according to the preceding claim wherein the cooperation between the first and second assembly structures (12, 22) is such that, when the second assembly structures (22) are elastically deformed to assemble the second washer (2) with the first washer (1), an inner perimeter (210) of the second bearing face (21) moves beyond an outer perimeter (110) of the first bearing face (11) in a radial direction (y) common to the first and second bearing faces (11, 21), and, when the second assembly structures (22) are assembled with the first assembly structures (12), the outer perimeter (110) of the first bearing face (11) extends beyond the inner perimeter (210) of the second bearing face (21), in the radial direction (y).

3. System according to the preceding claim wherein the displacement of the inner perimeter, during the elastic deformation of the second assembly structures (22) to assemble the second washer (2) with the first washer (1), has an amplitude of at least 3 mm, and preferably at least 5 mm, in the radial direction.

4. System according to any one of the preceding claims wherein the second assembly structures (22) of the second washer (2) have a flexibility strictly greater than that of the first assembly structures (12) of the first washer (1).

5. System according to any one of the preceding claims wherein the first washer (1) is made of a first material and the second washer (2) is made of a second material that is more flexible than the first material, said second material having a flexibility between 40 and 70 shore A.

6. System according to any one of the preceding claims wherein some of the first and second assembly structures (12, 22) comprise lugs (121) and wherein others of the first and second assembly structures (12, 22) comprise portions (221) referred to as upper and portions (222) referred to as lower, the upper portions (221) being intended to cover said lugs (121) during assembly and the lower portions (222) being intended to support said lugs (121) during assembly.

7. System according to the preceding claim wherein the second assembly structures (22) comprise the upper portions (221) and the lower portions (222), said upper portions (221) extending in continuity with the second bearing face (21), and wherein the lower portions (222) are configured to bear against the connecting body (10).

8. System according to any one of the two preceding claims wherein the lugs (121) comprise housings (122) and the lower portions (221) comprise teeth (223), said teeth (223) being configured to fit into the housings (122) of the lugs (121) during assembly.

9. System according to any one of the preceding claims wherein the second washer (2) has a bearing surface at least twice greater, and preferably at least four times greater, than a bearing surface of the first washer (1).

10. A system according to any one of the preceding claims in which the second bearing face (21) of the second washer (2) comprises fins (211, 211a, 211b) and slots (212) in at least some of these fins (211a), said slots (212) being shaped to allow a finger of the user to pass through during the assembly of the second washer (2) onto the first washer (1) by elastic deformation of the second assembly structures (22).

11. System according to any one of the preceding claims wherein the connecting body (10) of the first washer (1) is elongated along a longitudinal axis (z) and has a frustoconical shape with a first end of smaller cross-section and a second end of larger cross-section, and wherein the means of fixing (102) to the stick is preferably located at the first end and the first bearing face (11) is preferably located at the second end, so that the first bearing face (11) and the fixing means (102) are separated by a non-zero separation distance d measured along the longitudinal axis (z).

12. System according to the preceding claim in which the separation distance d is greater than 20 mm.

13. A system according to any one of the two preceding claims wherein the first washer (1) is configured to be fixed to the stick according to: • a first position in which the first bearing face (11) is turned towards a distal end of the stick intended to be in contact with the ground, and according to • a second position in which the first bearing face (11) is turned back, towards a proximal end of the stick opposite to the distal end along the longitudinal axis (z), said proximal end being intended to bear a handle.

14. System according to the preceding claim wherein the first bearing face (11) has a first concavity and the second bearing face (21) has a second concavity, and wherein, in the second position of the first washer (1), said first concavity is directed towards the proximal end of the stick and said second concavity is directed towards the distal end of the stick when the first and second washers (1,2) are assembled.

15. A hiking or ski pole comprising a system of washers according to any one of the preceding claims and comprising: • at least one tube oriented along a longitudinal axis (z), • a handle located at a proximal end of at least one tube, • a tip located at a distal end of at least one tube, • a fastening area (32) configured to cooperate with the fastening means (102) of the first washer (1), the fastening area (32) being located on the distal end side.

16. Method of assembling the first and second washers (1, 2) of a washer system according to any one of claims 1 to 14 comprising: • Inserting the connecting body (10) of the first washer (1) into the opening (20) of the second washer (2), • Elastically deforming the second assembly structures (22) of the second washer (2) so as to assemble them with the first assembly structures (12) of the first washer (1), preferably by exerting a radial and / or axial force relative to an axis of symmetry of the opening (20) of the second washer (2).

17. Assembly method according to the preceding claim, for first and second washers (1, 2) of a washer system according to any one of claims 13 or 14 further comprising: • Before or after assembly of the second washer (2), fixing the first washer (1) to the stick in the second position.

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