SHOE WITH DETACHABLE CARRYING METHOD

Description

[0001] The present invention relates to shoes equipped with a means of transport, also called a transport component. This means of transport comprises a chassis fixed under the sole of the shoe and a propulsion mechanism fixed under this chassis. This propulsion mechanism enables the wearer to move across the ground by means of any means, for example, wheels, skates, stilts, or any similar element that allows rolling, gliding, or support.

[0002] This means of transport is detachable from the shoe (also called the upper). Thus, the user can walk normally when the means of transport is detached from the shoe and, for example, carried with them. When the means of transport is attached to the bottom of the shoe, the user can slide or roll on the ground. Such a combination of this shoe and this means of transport provides the user with a variety of movement options and constitutes a valuable piece of sports equipment.

[0003] Thus, we know of a sports equipment device, comprising on the one hand a footwear part including a sole, on the other hand a transport part including a chassis which extends along a longitudinal axis (X) oriented from front to back and a movement mechanism which is fixed under this chassis, and further comprising a fastening mechanism which is able to removably secure the footwear part with the chassis and which includes a front fixing mechanism consisting of an upper front block attached to the footwear part and a lower front block attached to the chassis and able to be secured with the upper front block, and a rear fixing mechanism consisting of an upper rear block attached to the footwear part and a lower rear block attached to the chassis and able to be secured with the upper rear block.

[0004] An example of such a device is described in patent FR3019470. However, in this device, the integration of the upper front block and the upper rear block into the shoe involves several steps and is complex. Other examples of known devices are described in documents US 2003 / 155724-A1, DE 203 04 895-U1, US 2 244 719-A, US 2013 / 147137-A1, and US 6 382 638-B1. Description de l'invention

[0005] The present invention aims to remedy these drawbacks.

[0006] The invention aims to provide a sports equipment device in which the integration of the upper front block and the upper rear block into the shoe part is simplified, while allowing easy attachment and detachment of the chassis from the shoe part.

[0007] This goal is achieved thanks to the fact that the upper front block and the upper rear block are integrated into the sole, and that at least part of the sole is molded and molded onto the upper front block and the upper rear block.

[0008] These features simplify the integration of the upper front and upper rear blocks into the shoe, as well as the manufacturing process. Furthermore, the correct positioning of the upper front and upper rear blocks, and the maintenance of the distance between them, are achieved by molding the molded part onto these blocks. This allows for easy and reliable attachment and detachment of the chassis from the shoe.

[0009] For example, the shoe part also includes a support element which extends in a plane at rest and which is deformable in flexion and undeformable in tension in that plane.

[0010] This improves the long-term stability of the upper front block and the upper rear block positions.

[0011] For example, the retaining element is fixed directly to the upper front block and to the upper rear block.

[0012] This further improves the long-term stability of the upper front block and upper rear block positions.

[0013] For example, the upper front block consists of an upper front plate, a lower front plate with a central front hole, and a front spacer located between the front plates, the front plates and the front spacer being mechanically linked together, and the upper rear block consists of an upper rear plate, a lower rear plate with a central rear hole and a rear side hole, and a rear spacer located between the rear plates, the rear plates and the rear spacer being mechanically linked together.

[0014] Thus, a constant distance is maintained between the front plates, and a constant distance between the rear plates, which helps to make the front and rear fastening mechanisms more reliable.

[0015] For example, the front spacer is in one piece and has in its center a closed front wall that surrounds the front hole, and the rear spacer has in its center a closed rear central wall that surrounds the rear central hole and on its front part a closed rear side wall that surrounds the rear side hole.

[0016] Thus, these spacers help to prevent the molding material from entering the holes in the lower front and rear plates which are intended to receive the lower front and rear blocks attached to the chassis.

[0017] For example, the upper front plate has front reliefs, and the upper rear plate has rear reliefs.

[0018] Thus, the upper front and rear plates are held in position more reliably during molding.

[0019] For example, the sole consists of an outsole and an insole, each of which is molded, with the insole being overmolded onto the outsole and onto the upper front block and the upper rear block.

[0020] Thus, the sole is manufactured solely by molding. This simplifies the manufacturing process.

[0021] For example, the outsole has a front hole surrounded by a front wall in which the lower front plate is housed, which opens onto the outer face, and has a rear hole surrounded by a rear wall in which the lower rear plate is housed, which opens onto the outer face.

[0022] Thus, these front and rear walls help to prevent the molding material from entering the holes in the lower front and rear plates which are intended to receive the lower front and rear blocks attached to the chassis.

[0023] For example, the chassis has an upper shell and a lower shell which can be mechanically joined in a removable manner.

[0024] Thus, chassis assembly is simplified. Furthermore, chassis maintenance and repair, if necessary, are easier.

[0025] The invention also relates to a method for manufacturing a piece of sports equipment.

[0026] According to the invention, the process comprises the following steps (b) A high front block and a high rear block are provided, and a sole is manufactured, at least part of which is molded onto the high front block and the high rear block so that these high blocks are integrated into the sole, which forms part of a footwear component; (c) A frame, a low front block and a low rear block are provided, and the low blocks are attached to the frame; (d) A movement mechanism is fixed under the frame; (e) The low front block is joined to the high front block and the low rear block is joined to the high rear block so as to removably join the footwear component to the frame.

[0027] For example, before step (b), the process includes the following step (a): (a) An outsole is manufactured by molding; and the process is such that, in step (b), said sole consists of the outsole and an insole which is produced by molding, the insole being overmolded onto the outsole and onto the upper front block and the upper rear block.

[0028] The invention will be better understood and its advantages will become more apparent upon reading the following detailed description of embodiments shown by way of non-limiting examples. The description refers to the accompanying drawings in which: [ Fig. 1 ] There figure 1 is a perspective and exploded view of the sports equipment device according to the invention. Fig. 2 ] There figure 2 is a perspective and exploded view of the sports equipment device according to another embodiment of the sole of the device of the invention. Fig. 3 ] There figure 3 is a perspective and exploded view of the footwear part of the device figure 2 . [ Fig. 4 ] There figure 4 is a perspective view of the outsole and the upper forefoot and upper rearfoot of the device figure 2 . [ Fig. 5 ] There figure 5 is a perspective view of the footwear part of the device figure 1 after overmolding the insole onto the outsole. Fig. 6 ] There figure 6 is a perspective view of the footwear part of the device figure 5 with the insole detached from the outsole. Fig. 7 ] There figure 7 is a perspective and exploded view of the upper front block and the upper rear block in an alternative embodiment of the device retaining element of the figure 1 . [ Fig. 8 ] There figure 8 is a perspective and exploded view of the upper front block and the upper rear block in another embodiment of the device retaining element of the figure 1 . [ Fig. 9 ] There figure 9 is a perspective and exploded view of the chassis and the lower front and lower rear blocks of the device figure 1 . [ Fig. 10 ] There figure 10 is a perspective and exploded view of the lower rear block of the device figure 1 . [ Fig. 11 ] There figure 11 is a perspective view of a first stage of assembly of the lower front block and the lower rear block with the chassis of the device of the figure 1 . [ Fig. 12 ] There figure 12 is a perspective view of a second stage of assembly of the lower front block and the lower rear block with the chassis of the device of the figure 1 . [ Fig. 13 ] There figure 13 is a perspective view of a third stage of assembly of the lower front block and the lower rear block with the chassis of the device. figure 1 . [ Fig. 14 ] There figure 14 is a perspective view of a fourth stage of assembly of the lower front block and the lower rear block with the chassis of the device of the figure 1 . [ Fig. 15 ] There figure 15 is a perspective view of a fifth stage of assembly of the lower front block and the lower rear block with the chassis of the device of the figure 1 . [ Fig. 16 ] There figure 16 is a perspective view of a sixth assembly stage of the lower front block and the lower rear block with the chassis of the device. figure 1 . Description détaillée de l'invention

[0029] In the description below, and as illustrated in the figures, the shoe part 1, the soles (10, 11, 12), the support element 13, the chassis 30, the front fastening mechanisms 50 and rear fastening mechanisms 60, and the other parts of the sports equipment device are positioned and oriented with respect to an orthogonal coordinate system (X, Y, Z) with a horizontal longitudinal axis X oriented from front to back, a horizontal transverse axis Y, and a vertical axis Z oriented from bottom to top. The terms "front" and "back" are defined with respect to the longitudinal axis X. The terms "top," "upper," "above," "on," "bottom," "lower," "below," and "under" are defined with respect to the vertical axis Z.

[0030] According to the invention, at least a portion of the sole 10 is molded onto the upper front block 50H and the upper rear block 60H, these blocks being described below. For example, the remainder of the sole is manufactured by extrusion or lamination, then cut to its final shape, and assembled with the molded portion of the sole, this assembly being carried out by any means (for example, by sewing and / or gluing and / or hot welding). Alternatively, the entire sole 10 is molded.

[0031] By "molded on the high front block 50H and the high rear block 60H", it is meant that the molding material surrounds at least both the top and the sides of the high front block 50H of the high rear block 60H.

[0032] Advantageously, the molded portion of the sole 10 extends from the front to the back of the sole 10, and transversely, over the entire horizontal surface of the sole 10. Since the molding material is waterproof, the shoe part 1 is waterproof in the vertical direction, which allows the user to have dry feet when walking on wet ground.

[0033] There figure 1 illustrates a sports equipment device according to the invention, which comprises a shoe part 1 including a sole 10. In the embodiment of the figure 1 The sole 10 is a single piece, meaning it is molded in one piece. This molding is achieved, for example, by injection molding. The upper part 1 also includes, attached to the top of the sole 10, a shank (not shown) designed to cover or envelop the user's foot. This attachment is achieved, for example, by gluing and / or stitching, for example, around the periphery of the upper surface of the sole 10.

[0034] There figure 2 This illustrates an embodiment in which the sole 10 is in two parts and thus consists of an insole (upper sole) 11 and an outsole (lower sole) 12, these two soles being molded separately. The insole 11 has a lower face 112 and an upper face 111. The outsole 12 has a lower face 122 (outer face) and an upper face 121. The upper (not shown) is then fixed to the upper face 111, for example, on the periphery of this upper face 111.

[0035] Alternatively, the sole 10 can be made up of three or more soles, these soles being molded separately and then assembled, or overmolded on top of each other.

[0036] The sports equipment device also includes a transport part 2 comprising a chassis 30 extending along the longitudinal X-axis oriented from front to back and a movement mechanism 80, particularly on the ground, which is fixed under this chassis 30. This movement mechanism 80 is schematically represented by dashed lines on the figure 1 and the figure 2 .

[0037] The sports equipment device further includes a fastening mechanism 40 which is suitable for removably fastening the shoe part 1 to the frame 30. This fastening mechanism 40 consists of a front fastening mechanism 50 and a rear fastening mechanism 60. The front fastening mechanism 50 is located at the front portion of the sports equipment device and consists of an upper front block 50H located in the shoe part 1, and a lower front block 50B located in the frame 30 and which is suitable for fastening to the upper front block 50H. The rear fastening mechanism 60 is located at the rear portion of the sports equipment device and consists of an upper rear block 60H attached to the shoe part 1, and a lower rear block 60B attached to the frame 30 and which is suitable for fastening to the upper rear block 60H. It is noted that in figure 1 and in figure 2 , the front fixing mechanism 50 and the rear fixing mechanism 60 are shown extracted from the shoe part 10 and the chassis 30, for the sake of clarity.

[0038] We first describe the upper front block 50H and the upper rear block 60H of the fastening mechanism 40.

[0039] In the embodiment where the sole 10 is a single piece, the upper front block 50H and the upper rear block 60H are embedded in the sole 10. However, the upper front block 50H and the upper rear block 60H each open onto the underside of the sole 10 to allow their attachment to the lower front block 50B and the lower rear block 60B, respectively. Thus, the molding material surrounds both the top and the sides of the upper front block 50H and the upper rear block 60H. For example, the molding material also covers the periphery of the undersides of the upper front block 50H and the upper rear block 60H with a bead.

[0040] In the embodiment where the sole 10 consists of an insole 11 and an outsole 12, the upper front block 50H and the upper rear block 60H are integrated into the outsole 12 and the insole 11, as shown in figure 3 which illustrates in perspective and exploded view these various parts before their assembly in their correct positions. Thus, the upper front block 50H and the upper rear block 60H are embedded in the outer sole 12 and the inner sole 11. However, the upper front block 50H and the upper rear block 60H each open onto the outer face (lower face) 122 of the outer sole 12 to allow their attachment to the lower front block 50B and the lower rear block 60B respectively. Thus, the molding material surrounds both the top and the sides of the upper front block 50H and the upper rear block 60H. For example, the molding material also covers the periphery of the lower faces of the upper front block 50H and the upper rear block 60H with a bead.

[0041] The outsole 12 and the insole 11 are each molded, with the insole 11 being overmolded onto the outsole 12 and onto the upper front block 50H and the upper rear block 60H. This molding and overmolding are, for example, carried out by injection.

[0042] The upper front block 50H consists of an upper front plate 51H, a lower front plate 52H with a central hole 52H, and a front spacer 53H located between these front plates (51H, 52H). The front plates (51H, 52H) and the front spacer 53H extend in the horizontal plane (X, Y) and are mechanically connected along the vertical axis Z. This mechanical connection is achieved, for example, by riveting using rivets that pass through holes in each of the front plates (51H, 52H) and in the front spacer 53H, as illustrated in figure 3 For example, the front plates (51H, 52H) are made of metal to provide rigidity and strength. figure 1 and the figure 2 illustrate the upper front block 50H after assembly of its various parts. The front spacer 53H has a constant thickness (along the vertical Z axis) which allows a constant distance to be maintained between the two front plates (51H, 52H).

[0043] Advantageously, the front spacer 53H is a single piece and has in its center a closed front wall 531H which surrounds the central front hole 521H after assembly of the upper front block 50H, as illustrated in figure 3 This front wall 531H helps prevent, during the overmolding of the insole 11, the material from filling the central front hole 521H where the tab 51B of the lower front block 50H is attached (see below). Similarly, in the embodiment where the sole 10 is a single piece, this front wall 531H helps prevent, during the molding of the sole 10, the material from filling the central front hole 521H.

[0044] Alternatively, the front spacer 53H is made of several parts. For example, the front spacer 53H consists of several separate tubes, each tube surrounding one of the mechanical fasteners (e.g., rivets) of the front plates (51H, 52H). This situation is illustrated in figures 7 et 8 .

[0045] The upper rear block 60H consists of an upper rear plate 61H, a lower rear plate 62H with a central rear hole 621H and a lateral rear hole 622H, and a rear spacer 63H located between these rear plates (61H, 62H). The lateral rear hole 622H is positioned forward relative to the central rear hole 621H. The rear plates (61H, 62H) and the rear spacer 63H extend in the horizontal (X, Y) plane and are mechanically connected along the vertical Z axis. This mechanical connection is achieved, for example, by riveting using rivets that pass through holes in each of the rear plates (61H, 62H) and in the rear spacer 63H, as illustrated in figure 3 For example, the rear plates (61H, 62H) are made of metal. figure 1 and the figure 2 illustrate the upper rear block 60H after assembly of its various parts. The rear spacer 63H has a constant thickness (along the vertical Z axis) which allows a constant distance to be maintained between the two rear plates (61H, 62H).

[0046] Advantageously, the rear spacer 63H is a single piece and has in its center a closed rear central wall 631H which surrounds the rear central hole 621H after assembly of the upper rear block 60H, as illustrated in figure 3 This rear central wall 631H helps prevent material from filling the rear central hole 621H during the overmolding of the insole 11, where the hook 64B of the lower rear block 60H is attached (see below). The rear spacer also has a closed rear side wall 632H on its front part, which surrounds the rear side hole 622H after assembly of the upper rear block 60H, as illustrated in figure 3 This rear side wall 632H helps prevent, during the overmolding of the insole 11, the material from filling the rear side hole 622H where the tip 65B of the lower rear block 60B is housed (see below). Similarly, in the embodiment where the sole 10 is a single piece, this rear center wall 631H and this rear side wall 632H help prevent, during the molding of the sole 10, the material from filling the rear center hole 621H and the rear side hole 622H.

[0047] Alternatively, the rear spacer 63H is made of several parts. For example, the rear spacer 63H consists of several separate tubes, each tube surrounding one of the mechanical fasteners (e.g., rivets) of the rear plates (61H, 62H). This situation is illustrated in figures 7 et 8 .

[0048] As illustrated on the figures 2 à 4 The outsole 12, after molding, has a front hole 125 surrounded by a front wall 1251, designed to house the lower front plate 52H. During assembly, the upper front plate 51H rests on the front wall 1251, and the lower front plate 52H is housed in the front hole 125 and opens onto the outer face 122 of the outsole 12. The front wall 1251 helps prevent material from filling the central front hole 521H during the overmolding of the insole 11. Similarly, the outsole 12, after molding, has a rear hole 126 surrounded by a rear wall 1261, designed to house the lower rear plate 62H. During assembly, the upper back plate 61H rests on the back wall 1261, and the lower back plate 62H is housed in the back hole 126 and opens onto the outer face 122 of the outsole.The rear wall 1261 helps to prevent, during the overmolding of the insole 11, the material from filling the rear central hole 621H and the rear lateral hole 622H. The . figure 4 illustrates the upper blocks (50H, 60H) assembled with the outsole 12, before the overmolding of the insole 11.

[0049] The lower front plate 52H and the lower rear plate 62H open onto the lower face of the sole 10 (outer face 122) without protruding from it, so as not to hinder the user's walking when the transport part 2 is not attached to the footwear part 1.

[0050] Advantageously, the upper front plate 51H has front reliefs 511H, and the upper rear plate 61H has rear reliefs (611H). These reliefs help to hold the upper blocks 50H and 60H in place on the outsole 12 during the overmolding of the insole 11. For example, these reliefs are notches located on the periphery of these upper plates (51H, 61H), as illustrated in figures 1 à 4 . Similarly, in the embodiment where the sole 10 is in one piece, these reliefs help to hold the upper blocks 50H and 60H in place during the molding of the sole 10.

[0051] Alternatively, or in addition, these upper plates (51H, 61H) have depressions or holes on their upper surface into which small pins are inserted. These pins help to hold the upper blocks 50H and 60H in place on the outer sole 12 during the overmolding of the inner sole 11. Similarly, in the embodiment where the sole 10 is a single piece, these pins help to hold the upper blocks 50H and 60H in place during the molding of the sole 10.

[0052] There figure 5 and the figure 6 illustrate the lower plates (52H, 62H) housed in the holes (125, 126), after the overmolding of the insole 11. During this overmolding, the material covers and surrounds the upper front plate 51H and the upper rear plate 61H in such a way that these plates are housed in a front cavity 115 and a rear cavity 116 on the lower face 112 of the insole 11. On the figure 6 The insole 11 is detached from the outsole 12 to show these cavities. On the figure 5 The sole 10 is shown as finalized after overmolding of the insole 11 onto the outsole 12.

[0053] The molding of the sole 10, for example the molding of the insole 11 and the overmolding of the outsole 12, are carried out with a thermoplastic polymer, or a thermosetting polymer.

[0054] For example, a thermoplastic elastomer (Thermoplastic Rubber, TR) is used as the polymer with an injection temperature between 160°C and 210°C, an injection pressure between 20 bar and 80 bar, and an injection time between 90 and 120 seconds. Alternatively, a thermoplastic polyurethane (Thermoplastic Polyurethane, TPU) is used as the polymer with an injection temperature between 150°C and 190°C, an injection pressure between 20 bar and 120 bar, and an injection time between 240 and 300 seconds.

[0055] Advantageously, the shoe part 1 also includes a retaining element 13, also called the mounting insole, which maintains a substantially constant longitudinal distance (separation) over time between the upper front block 50H and the upper rear block 60H. Thus, the retaining element 13 extends in a plane (horizontal plane (X,Y) at rest) and is deformable in bending and rigid in tension, that is, with forces acting within its plane at rest. "Deformable" means easily deformable by hand. "Rigid" means not visibly deformable by hand.

[0056] For example, the support element 13 is a plastic sheet attached to the insole 11 (or the sole 10) and positioned above it, with reference to the vertical axis Z. The support element 13 is fixed to the top of the insole 11 (or the sole 10), for example by gluing and / or stitching. Alternatively, the support element 13 is fixed under the upper (not shown) of the shoe part 1, this upper then being fixed to the insole 11 (or the sole 10) as described above. In these cases, the 50H block and the 60H block are not directly connected by the support element 13 but indirectly via the insole 11 (or the sole 10). The retaining element 13 helps prevent deformation of the insole 11 (or the sole 10) in its resting plane (horizontal plane (X,Y)). This retaining element 13 is illustrated in the figure 3 .

[0057] For example, the retaining element 13 is a pair of plastic sheets (131, 132) sandwiching the upper plates (51H, 61H), as shown in figure 7 This pair of sheets consists of an upper sheet 131 and a lower sheet 132. The lower sheet 132 has front and rear holes to allow the spacers (53H, 63H) to pass through, the lower plates (52H, 62H) being located below the lower sheet 132. The upper sheet 131 and the lower sheet 132 are assembled by heating and pressure so as to embed the upper plates (51H, 61H) between them.

[0058] Alternatively, the retaining element 13 is a plastic or metal blade located above the upper blocks (50H, 60H), as shown in figure 8 In all cases, the retaining element 13 is fixed directly to the upper plates (51H, 61H). For example, this fixing is achieved by riveting. Advantageously, the rivets used for riveting each of the upper blocks (50H, 60H) are used for the riveting.

[0059] Secondly, the lower front block 50B and the lower rear block 60B of the fastening mechanism 40 are described.

[0060] The front lower block 50B and the rear lower block 60B are integrated into the chassis 30. The chassis 30 is substantially flat and extends in a horizontal plane (X, Y) and is rigid under tension and compression, i.e., under stresses in its plane at rest, which allows a constant distance to be maintained between the front lower block 50B and the rear lower block 60B. Advantageously, the chassis 30 comprises an upper shell 31 and a lower shell 32 that can be mechanically joined in a removable manner. Thus, the assembly of the front lower block 50B and the rear lower block 60B with the chassis 30 is easier. figure 9 illustrates in perspective and exploded view these various parts before their assembly in their correct positions.

[0061] The lower front block 50B has a base that extends upwards into a lug 51B, the distal end of which is curved forward to form a hook. The lower front block 50B is visible on the figure 9 For example, the 50B lower front block is made of a single piece, which simplifies its manufacture.

[0062] The lower rear block 60B consists of a guide 61B, a support 62B, a carriage 63B, a pair of hooks 64B whose upper end is curved backwards and has a convex apex, a stop 65B, and a spring 66B. figure 10 This illustrates, in perspective and exploded view, these various parts of the lower rear block 60B before their assembly in their correct positions. The case of a pair of 64B hooks is described below. Alternatively, there may be a single 64B hook, or more than two 64B hooks.

[0063] The assembly of the front block 50B and the lower rear block 60B with the chassis 30 is described below.

[0064] The front block 50B is placed on the upper surface of the lower shell 32 in a housing located at the front such that the front block 50B is fixed to the lower shell 32 in a horizontal plane (X,Y). The support 62B is placed on the upper surface of the lower shell 32 in a housing located at the rear such that the support 62B is fixed to the lower shell 32 in a horizontal plane (X,Y). The front block 50B is oriented so that the distal end of the leg 51B points forward. This step is illustrated in figure 11 .

[0065] The upper shell 31 is then placed on the lower shell 32. The base of the lower front block 50B is sandwiched between these shells (31, 32) such that the lower front block 50B is vertically blocked by the shells (31, 32). The upper shell 31 has a hole at its front through which the tab 51B passes, such that this tab 51B extends upwards above the upper face of the upper shell 31. The periphery of the support 62B is sandwiched between the shells (31, 32), so that the support 62B is vertically blocked by the shells (31, 32). The upper shell 31 has a rear hole 316 at its rear, which leaves the central portion of the support 62B free, and in particular two parallel lateral slots 624B and two front and rear slots 623B that pass through this central portion. These four slots (624B, 623B) extend along the longitudinal axis X. This step is illustrated in figure 12 .

[0066] The upper shell 31 and the lower shell 32 are then mechanically assembled. For example, this assembly is carried out using screws and nuts, the screws passing through holes that go through the upper shell 31 and the lower shell 32. On the figure 12 and following there are two holes located towards the front of the chassis 30 and two holes located towards the rear of the chassis 30. For example, these screws also pass through a portion of the displacement mechanism 80, and serve to secure this displacement mechanism 80 with the chassis 30.

[0067] The stop 65B is then inserted into the front part of the rear hole 316 in the upper shell 31. The front part of the rear hole 316 is shaped to fit the lower part of the stop 65B so that the stop 65B is held vertically and locked in the horizontal plane (X,Y). The upper part of the stop 65B extends above the upper face of the upper shell 31. Advantageously, this upper part of the stop 65B is pointed. This step is illustrated in figure 13 .

[0068] The hooks 64B are then assembled with the carriage 63B. The carriage 63B has two slots 634B in its central portion. The hooks 64B are inserted vertically into these slots from bottom to top such that the upper part of these hooks 64B extends above the carriage 63B. The hooks 64B have two fingers 643B in their middle, extending forward and backward, each curved upward at its distal end, and upon which the central portion of the carriage 63B rests. The hooks 64B are thus blocked against translation in the horizontal plane (X,Y) relative to the carriage 63B (by the slots 634B, and by the ends of the fingers 643B which block the central portion of the carriage 63B), and blocked against translation vertically upward, but not downward. The central portion of the 63B carriage extends at the front and rear with two downward-curving 632B legs.The 64B hooks and the 63B carriage with their various parts are visible in . figure 10 .

[0069] The assembly consisting of the hooks 64B and the carriage 63B is then placed in the rear hole 316 of the upper shell 31. This assembly is located towards the rear relative to the stop 65B. The lower end of each hook 64B is inserted into one of the lateral slots 624B such that the hooks 64B are able to slide longitudinally in these lateral slots 624B. The lower end of each tab 632B is inserted into one of the front and rear slots 623B such that these hooks 632B are able to slide longitudinally in these front and rear slots 623B. This step is illustrated in figure 14 .

[0070] Next, spring 66B is placed in the rear hole 316 of the upper shell 31. Spring 66B bears against the stop 65B at its front end and against the front tab 632B of the carriage 63B at its rear end. At rest, or slightly compressed, spring 66B thus pushes the carriage 63B rearward until the rear tab 632B of the carriage 63B abuts against the rear edge of the rear hole 316. This step is illustrated in figure 15 .

[0071] The rear hole 316 is then covered by the guide 61B. The guide 61B has two parallel slots 614B in its central portion, extending longitudinally, through which the upper ends of the hooks 64B pass. The guide 61B thus covers the carriage 63B and the spring 66B such that the carriage 63B, the hooks 64B, and the spring 66B are prevented from moving vertically upwards along the Z-axis. The guide 61B has a notch 615B at its front end, through which the upper part of the stop 65B passes. The stop 65B has two transverse shoulders 651B in its central portion, on which the transverse edges of the notch 615B rest, so that the stop 65B is prevented from moving vertically upwards along the Z-axis. This step is illustrated in figure 16 .

[0072] Next, the guide 61B is mechanically secured to the support 62B. For example, this securing is achieved by riveting using rivets, as shown in figure 16 Since the support 62B is fixed to the chassis 30 and locked horizontally and vertically relative to this chassis 30 as explained above, the entire lower rear block 60B is now fixed to the chassis 30 and locked horizontally and vertically between the lower shell 32 and the upper shell 31 of this chassis 30, with the exception of the hooks 64B (or more generally at least one hook 64B if there is only one, two, three or more) which are only able to translate longitudinally along the X axis in the slots 614B.

[0073] The process of joining the shoe part 1 after its assembly with the chassis 30 is described below.

[0074] The front of the outsole 12 (or sole 10) is brought into contact with the front of the upper face of the chassis 30 until the distal end of the tab 51B of the lower front block 50B engages in the central front hole 521H of the lower front plate 52H. Then the outsole 12 (or sole 10) is translated rearward relative to the chassis 30 until the distal end of the tab 51B passes over the front edge of the central front hole 521H, in order to secure this tab 51B to the upper front block 50H.

[0075] Then, the rear of the outer sole 12 (or sole 10) is lowered vertically against the rear of the upper face of the chassis 30 until the hooks 64B enter the rear center hole 621H of the upper rear plate 62H. Simultaneously, the tip 65B of the lower rear block 60B enters the rear side hole 622H of the upper rear plate 62H. The rear edge of the rear center hole 621H then presses against the convex apex of each of the hooks 64B to push them forward against the spring 66B. The rear of the outer sole 12 is continued to be brought vertically closer to the chassis 30 until the rear edge of the rear center hole 621H passes under the upper end of each of the hooks 64B. The spring 66B then pushes the hooks 64B back so that the rear edge of the rear center hole 621H is sandwiched between the upper end of the hooks 64B and the guide 61B.The 64B hooks are thus secured to the upper rear block 60H. The shoe part 1 is thus secured vertically and horizontally to the chassis 30 by the 51B tab and the 64B hooks.

[0076] The process of separating the shoe part 1 from the chassis 30 is described below.

[0077] The chassis 30 has a straight conduit 306 which is formed between the upper shell 31 and the lower shell 32 and which extends horizontally rearward from the rear hole 316 until it opens at the rear of the chassis 30, as illustrated in figures 11 And 12Through this conduit 306, the shaft of a tool (not shown) is inserted until its end pushes forward the rear tab 632B of the carriage 63B, compressing the spring 66B. This pushes the hooks 64B forward, disengaging the rear edge of the rear center hole 621H from the hooks 64B. The rear edge of the shoe-like part 1 can then be lifted away from the frame 30, and the shoe-like part 1 is then moved forward relative to the frame 30 to disengage the tab 51B from the front center hole 521H. The shoe-like part 1 is thus completely separated from the frame 30.

[0078] Other embodiments of the invention are possible, for example, the entire lower rear block 60B is sandwiched between the lower shell 32 and the upper shell 31, with the exception of at least one hook 64B, and is held locked between these shells (31, 32) by the mechanical assembly of these shells. In this case, the upper shell 31 partially covers the guide 61B. Generally, the entire lower front block 50B is sandwiched between the upper shell 31 and the lower shell 32, with the exception of at least one tab 51B, and the entire lower rear block 60B is sandwiched between the upper shell 31 and the lower shell 32, with the exception of at least one hook 64B.

[0079] In view of the above description, the manufacturing process for a sports equipment device according to the invention, with a shoe part 1 and a chassis 30, comprises the following steps: A high front block 50H and a high rear block 60H are provided, and a sole 10 is manufactured which forms part of a shoe part 1, at least part of which is molded onto the high front block and the high rear block such that these high blocks (50H, 60H) are integrated into the sole 10 (step (b)); A chassis 30 is assembled with a low front block 50B and a low rear block 60B such that the low blocks (50B, 60B) are attached to the chassis 30 (step (c)); A displacement mechanism 80 is fixed under the chassis 30 (step (d)); Then we join the lower front block 50B with the upper front block 50H and we join the lower rear block 60B with the upper rear block 60H, so that the shoe part 10 is removably joined to the chassis 30 (step (e)).

[0080] In a particular embodiment, before step (b) an outsole 12 is manufactured by molding (step (a)). In step (b), an insole 11 is overmolded onto the outsole 12 and onto the upper front block 50H and the upper rear block 60H. The sole 10 consists of the outsole 12 and an insole (11).

Claims

1. Sports equipment device, comprising a footwear portion (1) comprising a sole (10) on the one hand, and a transport portion (2) comprising a frame (30) which extends along a longitudinal axis (X) oriented from front to rear and a movement mechanism (80) for moving across the ground which is fixed under this frame (30) on the other hand, and further comprising a securing mechanism (40) which is able to removably secure the footwear portion (1) to the frame (30) and which comprises a front attachment mechanism (50) comprising an upper front block (50H) attached to the footwear portion (1) and a lower front block (50B) attached to the frame (30) and able to be secured to the upper front block (50H), and a rear attachment mechanism (60) comprising an upper rear block (60H) attached to the footwear portion (1) and a lower rear block (60B) attached to the frame (30) and able to be secured to the upper rear block (60H), wherein said upper front block (50H) and said upper rear block (60H) are integrated into said sole (10), and in that at least a portion of said sole (10) is created by molding and is molded onto said upper front block (50H) and said upper rear block (60H), characterized in that the upper front block (50H) comprises an upper front plate (51H), a lower front plate (52H) pierced with a central front hole (521H), and a front spacer (53H) located between said front plates (51H, 52H), said front plates (51H, 52H) and said front spacer (53H) being mechanically connected together, and in that the upper rear block (60H) comprises an upper rear plate (61H), a lower rear plate (62H) pierced with a central rear hole (621H) and a side rear hole (622H), and a rear spacer (63H) located between said rear plates (61H, 62H), said rear plates (61H, 62H) and said rear spacer (63H) being mechanically connected together.

2. Sports equipment device according to claim 1, wherein the footwear portion (1) further comprises a retaining element (13) which extends within a plane when at rest and which is flexurally deformable and tensionally non-deformable in this plane.

3. Sports equipment device according to claim 2, wherein said retaining element (13) is fixed directly to said upper front block (50H) and to said upper rear block (60H).

4. Sports equipment device according to any one of the preceding claims, wherein the front spacer (53H) is a single part and has a closed front wall (531H) at its center which surrounds said front hole (521H), and the rear spacer (63H) has a closed rear central wall (631H) at its center which surrounds said central rear hole (621H) and on its front portion has a closed rear side wall (632H) which surrounds the side rear hole (622H).

5. Sports equipment device according to any one of the preceding claims, wherein said upper front plate (51H) has front reliefs (511H), and said upper rear plate (61H) has rear reliefs (611H).

6. Sports equipment device according to any one of claims 1 to 5, wherein said sole (10) comprises an outsole (12) which has an outer face (122), and an insole (11), which are each created by molding, said insole (11) being overmolded onto said outsole (12) and onto said upper front block (50H) and said upper rear block (60H).

7. Sports equipment device according to claim 6, wherein said outsole (12) has a front hole (125) surrounded by a front wall (1251) in which said lower front plate (52H) is housed, which opens onto said outer face (122), and has a rear hole (126) surrounded by a rear wall (1261) in which said lower rear plate (62H) is housed, which opens onto said outer face (122).

8. Sports equipment device according to any one of claims 1 to 7, wherein said frame (30) comprises an upper shell (31) and a lower shell (32) which can be mechanically secured together in a removable manner.

9. Method for manufacturing a sports equipment device, characterized in that it comprises the following steps: (b) An upper front block (50H) and an upper rear block (60H) are provided, and a sole (10) is manufactured in which at least a portion is molded onto said upper front block (50H) and said upper rear block (60H) in such a way that said upper blocks (50H, 60H) are integrated into said sole (10) which is part of a footwear portion (1), the upper front block (50H) comprising an upper front plate (51H), a lower front plate (52H) pierced with a central front hole (521H), and a front spacer (53H) located between said front plates (51H, 52H), said front plates (51H, 52H) and said front spacer (53H) being mechanically connected together, and the upper rear block (60H) comprising an upper rear plate (61H), a lower rear plate (62H) pierced with a central rear hole (621H) and a side rear hole (622H), and a rear spacer (63H) located between said rear plates (61H) , 62H), said rear plates (61H, 62H) and said rear spacer (63H) being mechanically connected together; (c) A frame (30), a lower front block (50B), and a lower rear block (60B) are provided, and said lower blocks (50B, 60B) are attached to said frame (30); (d) A movement mechanism (80) is fixed under said frame (30); (e) The lower front block (50B) is secured to the upper front block (50H) and the lower rear block (60B) is secured to the upper rear block (60H) so as to removably secure the footwear portion (1) to the frame (30).

10. Method for manufacturing according to claim 9, comprising the following step (a) before step (b): (a) An outsole (12) is manufactured by molding; and wherein, in step (b), said sole (10) comprises said outsole (12) and an insole (11) which is created by molding, said insole (11) being overmolded onto said outsole (12) and onto said upper front block (50H) and said upper rear block (60H).