Easy-to-disassemble reel and matching kit to assemble a reel

Abstract

Reel (1) comprising a first shell (3) and a second shell (4) together forming a barrel (2), a first cheek (5) and a second cheek (6), and a spring-loaded interlocking locking system formed by the first shell (3) and the second shell (4), the locking system being able to adopt: a locked configuration in which the locking system locks the first shell (3) and the second shell (4) in a joined position and an unlocked configuration in which the locking system allows the first shell (3) and the second shell (4) to move from the joined position to a disjointed position. Accompanying figure for the abbreviation: Figure 1

Description

Title of the invention: Easy-to-disassemble reel and corresponding kit for forming a reel. FIELD OF THE INVENTION

[0001] The present invention relates to a reel, a kit for forming a reel, and a method for dismantling a reel. STATE OF THE ART

[0002] A conventional reel 1 comprises two sides and a barrel extending between the two sides. It is advantageous to be able to disassemble such a reel for transport and / or space reduction purposes before winding cables onto said reel and / or after completely unwinding the cable from said reel.

[0003] Prior art is known a demountable reel 1 in which the barrel comprises two separable shells, the two cheeks also being separable from the barrel.

[0004] Each of the two cheeks includes a bayonet system to keep the cheek attached to the barrel, and to, at the same time, keep the two shells together in the shape of a barrel.

[0005] To disassemble the reel 1, one cheek must be rotated relative to the barrel, so as to unlock the bayonet system, and the same thing must be done with the other cheek.

[0006] Therefore, two manual intervention steps are required to dismantle this grinder, by applying rotational movements.

[0007] In addition, document FR2617148 proposed another reel whose drum consists of two separable halves. However, this reel has the disadvantage of being relatively difficult to disassemble. Indeed, to perform such disassembly, a user must loosen clamping bolts that are difficult to access because they are located inside the drum. Description of the invention

[0008] One aim is to further simplify the dismantling of a grinding wheel.

[0009] This goal is achieved by a reel comprising: • a first hull and a second hull in a joined position in which the first hull and the second hull together form a shaft extending around an axis, the first hull and the second hull being suitable for: • adopt a disjoint position in which the first hull and the second hull are at a distance from each other, • to move from the joined position to the disjoint position when the first shell and the second shell are moved away from each other in a transverse direction perpendicular to the axis; a first cheek comprising a first locking element in a first mounted position in which the first locking element is engaged with the barrel, so as to block a translation of the first cheek relative to the barrel in a longitudinal direction parallel to the axis, the first locking element being specific to: • adopt a first disassembled position in which the first locking element is not engaged with the first shell and is not engaged with the second shell, so as to allow a translation of the first cheek relative to the first and second shells in the longitudinal direction, • to move from the first mounted position to the first dismounted position when the first shell and the second shell are away from the first locking element in the transverse direction; a second cheek comprising a second locking element in a second mounted position in which the second locking element is engaged with the barrel, so as to block translation of the second cheek relative to the barrel in the longitudinal direction, the second locking element being specific to: • adopt a second disassembled position in which the second locking element is not engaged with the first shell and is not engaged with the second shell, so as to allow a translation of the second cheek relative to the first and second shells in the longitudinal direction, • to move from the second mounted position to the second dismounted position when the first shell and the second shell are away from the second locking element in the transverse direction; an elastic interlocking locking system formed by the first shell and the second shell, the locking system being specific to adopt: • a locked configuration in which the locking system secures the first shell and the second shell in the joined position, • an unlocked configuration in which the locking system allows the first shell and the second shell to move from the joined position to the disjoined position; • in which: • when the first shell and the second shell are in the joined position, the barrel prevents the first locking element from moving from the first assembled position to the first disassembled position and prevents the second locking element from moving from the second assembled position to the second disassembled position, • when the first shell and the second shell are in the disjointed position, the first shell and the second shell allow the first locking element to move from the first mounted position to the first disassembled position, and allow the second locking element to move from the second mounted position to the second disassembled position.

[0010] The grinder allows three workpiece spacings in the transverse direction perpendicular to the axis of the drum: • the mutual distancing of the first hull and the second hull, • the distance of the first and second shells from the first locking element, and • the distance of the first shell and the second shell from the second locking element.

[0011] The fact that these separations can occur in the same direction (the transverse direction) promotes a natural separation of the cheeks and the shells, and allows the reel 1 to be disassembled in a single step.

[0012] Furthermore, the elastic locking system is capable of automatically unlocking upon impact. Consequently, it is possible to automatically disassemble the reel by dropping it onto the ground. Indeed, the collision between the reel and the ground produces a shock wave capable of unlocking the locking system. By comparison, the two reels discussed in the introduction (comprising bayonet systems and clamping bolts, respectively) do not disassemble when dropped onto the ground.

[0013] The reel may include the following optional features taken alone or in combination where technically possible.

[0014] Preferably, which locking system is able to switch from the locked configuration to the unlocked configuration by an external stimulus, and to switch from the unlocked configuration to the locked configuration by elastic return in the absence of an external stimulus.

[0015] Preferably, the first locking element in the first mounted position blocks a rotation of the first cheek relative to the barrel around the axis, and / or the second locking element in the second mounted position blocks a translation of the second cheek relative to the barrel around the axis.

[0016] Preferably, the first blocking element extends between the first cheek and the second cheek when the first blocking element is in the first mounted position, and / or the second blocking element extends between the first cheek and the second cheek when the second blocking element is in the second mounted position.

[0017] Preferably, the first locking element is a female element in which a male element of the first shell or the second shell is received in the first mounted position, and / or the second locking element is a female element in which another male element of the first shell or the second shell is received in the second mounted position.

[0018] Preferably, the first cheek comprises a plurality of first blocking elements including at least one blocking element engaged with the first hull and at least one other blocking element simultaneously engaged with the second hull, and / or the second cheek comprises a plurality of second blocking elements including at least one blocking element engaged with the first hull and at least one other blocking element simultaneously engaged with the second hull.

[0019] Preferably, the first shell and the second shell are two half-shells suitable for each extending 180 degrees around the axis.

[0020] Another subject of this disclosure is a kit for forming a reel, the kit comprising • a first shell and a second shell specific to: • adopt a joined position in which the first hull and the second hull together form a shaft extending around an axis, • adopt a disjoint position in which the first hull and the second hull are at a distance from each other, • to move from the joined position to the disjoint position when the the first hull and the second hull are separated from each other in a transverse direction perpendicular to the axis; • a first cheek comprising a first blocking element specific to: • adopt a first mounted position in which the first locking element is engaged with the shaft, so as to block a translation of the first cheek relative to the shaft in a longitudinal direction parallel to the axis, • adopt a first disassembled position in which the first locking element is not engaged with the first shell and is not engaged with the second shell, so as to allow a translation of the first cheek relative to the first and second shells in the longitudinal direction, • to move from the first mounted position to the first dismounted position when the first shell and the second shell are away from the first locking element in the transverse direction; a second cheek comprising a second blocking element specific to: • adopt a second mounting position in which the second locking element is engaged with the shaft, so as to block a translation of the second cheek relative to the shaft in the longitudinal direction, • adopt a second disassembled position in which the second locking element is not engaged with the first shell and is not engaged with the second shell, so as to allow a translation of the second cheek relative to the first and second shells in the longitudinal direction, • to move from the second mounted position to the second dismounted position when the first shell and the second shell are away from the second locking element in the transverse direction; an elastic interlocking locking system formed by the first shell and the second shell, the locking system being specific to adopt: • a locked configuration in which the locking system secures the first shell and the second shell in the joined position, • an unlocked configuration in which the locking system allows the first shell and the second shell to move from the joined position to the disjoined position; in which the barrel extends between the first cheek and the second cheek so that the kit forms a reel when the first locking element is in the first mounted position and the second locking element is simultaneously in the second mounted position; and in which: • when the first shell and the second shell are in the joined position, the barrel prevents the first locking element from moving from the first assembled position to the first disassembled position and prevents the second locking element from moving from the second assembled position to the second disassembled position, • when the first shell and the second shell are in the disjointed position, the first shell and the second shell allow the first locking element to move from the first mounted position to the first disassembled position, and allow the second locking element to move from the second mounted position to the second disassembled position.

[0021] Yet another object of this disclosure is a method of dismantling the reel as defined above or formed from the kit as defined above, the method comprising dropping the reel onto the ground so as to move the locking system from the locked position to the unlocked position under the effect of a shock wave caused by the collision between the reel and the ground.

[0022] Preferably, the reel is oriented so that the first cheek and the second cheek collide with the ground.

[0023] Preferably, the reel has a kinetic energy of between 4 and 100 joules when the reel collides with the ground. DESCRIPTION OF THE FIGURES

[0024] Other features, objectives and advantages of the invention will become apparent from the following description, which is purely illustrative and not limiting, and which should be read in conjunction with the accompanying drawings on which:

[0025] Fig. 1 is a side view of a reel according to one embodiment.

[0026] Figure [Fig. 2] is a cross-sectional view of the reel of Figure [1], along line EE represented in [Fig.1].

[0027] Fig. 3 is a top view of a first shell according to one embodiment, and constituting a part of the reel of Fig. 1.

[0028] Fig. 4 is a cross-sectional view of the hull of Fig. 3 in a plane marked by line BB of Fig. 3.

[0029] The [Fig.5] is another cross-sectional view of the hull of the [Fig.3] in a plane marked by the line CC of the [Fig.3].

[0030] Fig. 6 is a top view of a second shell according to one embodiment, and constituting a part of the reel of Fig. 1.

[0031] Fig. 7 is a cross-sectional view of the hull of Fig. 6 in a plane marked by line BB of Fig. 6.

[0032] The [Fig.8] is another cross-sectional view of the hull of the [Fig.6] in a plane marked by the line CC of the [Fig.6].

[0033] Fig. 9 includes two views of a first cheek constituting a part of the reel of Fig. 1: a side view, and a front view.

[0034] Fig. 10 includes two views of a second cheek forming part of the reel of Fig. 1: a side view, and a front view.

[0035] Fig. 11 is a cross-sectional view of the reel of Fig. 1.

[0036] Fig. 12 is a cross-sectional view of the reel of Fig. 1, along line FF represented in [Fig. 11].

[0037] The [Fig. 13] is a front view of the first shell, the second shell and the first cheek which are respectively shown in figures 3, 6 and 9, in a state before final assembly.

[0038] The [Fig. 14] is a cross-sectional view of the first hull, the second hull and the first respectively shown in Figures 3, 6 and 9, along line DD of the [Fig. 13],

[0039] The [Fig. 15] is a cross-sectional view of the first hull, the second hull and the first respectively shown in Figures 3, 6 and 9, along line FF of the [Fig. 14],

[0040] Throughout the figures, similar elements bear identical references. DETAILED DESCRIPTION

[0041] A reel 1 according to one embodiment is shown in [Fig.1] and [Fig.2].

[0042] The reel 1 comprises a barrel 2, a first cheek 5 and a second cheek 6.

[0043] The shaft 2 extends around a central axis X, which is horizontal in [Fig. 1]. The shaft 2 is intended to serve as a winding support for a cable (not illustrated), in the sense that a cable is intended to be wound around the shaft 2.

[0044] The barrel 2 also extends between the first cheek 5 and the second cheek 6. The barrel 2 is connected to the first cheek 5 and to the second cheek 6.

[0045] The first cheek 5 has a diameter greater than the diameter of the barrel 2. Similarly, the second cheek 6 has a diameter greater than the diameter of the barrel 2. Thus, the cheeks 5, 6 and the barrel 2 define an annular storage space for a cable. Barrel 2

[0046] The barrel 2 is hollow. The barrel 2 thus has an internal surface 20 closed upon itself and oriented towards the central axis X, and an external surface 22 opposite the internal surface 20. The external surface 22 faces outwards from the reel 1, and forms the bottom of the annular storage space where a cable can be stored in a wrapped around the barrel 2. In the illustrated embodiment, the external surface 22 is cylindrical.

[0047] The barrel 2 comprises a first hull 3 (visible on [Fig.1], and shown on the left of [Fig.2]) and a second hull 4 (not visible on [Fig.1], but shown on the right of [Fig.2]).

[0048] Figure 2 shows the first hull 3 and the second hull 4 in a joined position. It is in this joined position that the first hull 3 and the second hull 4 together form the shaft 2. However, it will be seen later that the first hull 3 and the second hull 4 are two parts that can be separated. Locking and locking systems

[0049] The reel 1 includes a locking system adapted to adopt a locked configuration in which the locking system locks the first shell 3 and the second shell 4 in the joined position.

[0050] The locking system is an elastic interlocking system.

[0051] The locking system is also capable of adopting a configuration unlocked, in which the locking system permits mutual separation of the first shell 3 and the second shell 4 in a transverse direction perpendicular to the central axis X, from the joined position to a disjoint position.

[0052] The locking system is designed to transition from the locked to the unlocked configuration under external stress, and to transition from the unlocked to the locked configuration by elastic return in the absence of external stress. It will be seen below that an external stress can, in particular, be caused by a collision between the reel 1 and the ground. The locked configuration is thus the resting configuration of the locking system.

[0053] The locking system is formed by the first shell 3 and by the second shell 4. In other words, it is by mechanical cooperation between the first shell 3 and the second shell 4 that the locked configuration is obtained, and this without the use of a third part.

[0054] The reel 1 also includes a first locking system for locking the first cheek 5 relative to the barrel 2, particularly in translation along the central axis X. The first locking system is formed by the first cheek 5 and the barrel 2. In other words, the first cheek 5 can be locked relative to the barrel 2 by mechanically cooperating with at least one of the two shells that form the barrel 2, without requiring an additional part. In the illustrated embodiment, the first locking system is formed by these three parts (the first cheek 5, the first shell 3, and the second shell 4), meaning that the first cheek 5 mechanically cooperates with the first shell 3, and also with the second shell 4.

[0055] The reel 1 also includes a second locking system for locking the second cheek 6 relative to the barrel 2, particularly in translation along the central axis X. The second locking system is formed by the second cheek 6 and the barrel 2. In other words, the second cheek 6 can be locked relative to the barrel 2 by mechanically cooperating with at least one of the two shells that form the barrel 2, without requiring an additional part. In the illustrated embodiment, the second locking system is formed by these three parts (the second cheek 6, the first shell 3, and the second shell 4), meaning that the second cheek 6 mechanically cooperates with the first shell 3, and also with the second shell 4.

[0056] We will now successively detail the first shell 3, the second shell 4, the first cheek 5 and the second cheek 6, and their respective elements which make it possible to form the locking system, the first locking system and the second locking system mentioned above. First hull 3

[0057] With reference to figures 3 to 5, the first shell 3 extends over a first angular sector around a longitudinal axis X3, from a first longitudinal edge 301 to a second longitudinal edge 302 opposite the first longitudinal edge 301.

[0058] In the illustrated embodiment, the first shell 3 extends 180 degrees around the longitudinal axis X3. The first shell 3 thus constitutes a half-shell.

[0059] The first shell 3 also extends in a longitudinal direction parallel to the longitudinal axis X3, from a first lateral edge 303 to a second lateral edge 304 opposite the first lateral edge 303.

[0060] The first lateral edge 303 extends in a first extremal transverse plane perpendicular to the axis X3. The second lateral edge 304 extends in a second extremal transverse plane perpendicular to the axis X3 and different from the first extremal transverse plane.

[0061] The first shell 3 has an internal surface 305 facing the longitudinal axis X3, and an external surface 306 opposite the internal surface. The internal surface 305 is concave, and the external surface 306 is convex.

[0062] The internal surface 305 is connected to the external surface 306 by the longitudinal edges 301, 302, and lateral edges 303, 304.

[0063] In the illustrated embodiment, the external surface 306 is substantially cylindrical of revolution. The lateral edges 303, 304 are curved, C-shaped.

[0064] The first longitudinal edge 301 is not straight, so as to delimit a series of teeth 308 (here three teeth) adapted to cooperate with complementary teeth of the second shell 4. Similarly, the second longitudinal edge 302 is not straight, so as to delimit a series of teeth (here three teeth) adapted to cooperate with complementary teeth of the second shell 4. The teeth have the function of locking an axial displacement parallel to the X3 axis of the first shell 3 relative to the second shell 4, when the teeth of the first shell 3 are in contact with the respective complementary teeth of the second shell 4.

[0065] The first shell 3 comprises a first tab 310 delimited by the first longitudinal edge 301, and extending in a transverse direction perpendicular to the axis X3. This transverse direction is vertical in figures 3 to 5.

[0066] The first tab 310 is elastic. The first tab 310 has a rest position in which the first tab 310 extends the first longitudinal edge 310 tangentially.

[0067] The first tab 310 is also adapted to adopt a flexed position towards the X3 axis under the effect of an external load, in particular under the effect of pressure exerted on the external surface of the first tab 310 in a centripetal direction. When the first tab 310 ceases to be subjected to load, it naturally returns by elastic recoil to its rest position.

[0068] The first shell 3 comprises a first male element 312 adapted to cooperate with a female element of the second shell 4. The first male element 312 protrudes from the external surface of the first tab 310 in a centrifugal direction. In other words, the first tab extends between the first male element and the longitudinal axis X3.

[0069] The first male element 310 extends in a first intermediate transverse plane located between the two extreme transverse planes, and indicated by the line BB on the [Fig.3],

[0070] The first male element 310 has a face inclined relative to the external surface of the first tongue, and a vertical face perpendicular to the external surface of the first tongue. The inclined face and the vertical face meet at a vertex forming an edge parallel to the longitudinal axis X3.

[0071] The inclined face facilitates an elastic interlocking of the first male element 312 with a female element of the second shell 4, when the first tab 310 is brought closer to the second by a translational movement in the longitudinal direction. The vertical face forms a stop to hold the first male element interlocked with this female element.

[0072] The first shell 3 further comprises a first female element 314 adapted to cooperate with a male element of the second shell 4. The first female element 314 extends in a second intermediate transverse plane located between the two extreme transverse planes, and indicated by line CC in [Fig. 3]. This second intermediate transverse plane is different from the first intermediate transverse plane indicated by line BB.

[0073] The first female element 314 is formed by an orifice which opens into the internal surface 305 of the first shell 3. This orifice is through, that is to say it also opens into the external surface 306 of the first shell 3. The orifice is intended to receive a male element of the second shell 4.

[0074] The first shell 3 includes a second tab 320 delimited by the second longitudinal edge 304, and extending in the transverse direction perpendicular to the axis X3 (vertical in figures 3 to 5).

[0075] The second tab 320 is elastic. The second tab 320 has a rest position in which the second tab 320 extends the second longitudinal edge tangentially.

[0076] The second tab 320 is also capable of adopting a flexed position towards the X3 axis under the effect of an external load, in particular under the effect of pressure exerted on the external surface of the second tab 320 in a centripetal direction. When the second tab ceases to be subjected to load, it naturally returns, by elastic recoil, to its rest position.

[0077] The first shell 3 includes a second male element 322 adapted to cooperate with a female element of the second shell 4. The second male element projects from the external surface of the second tab 320 in a centrifugal direction. In other words, the second tab extends between the second male element and the longitudinal axis X3.

[0078] The second male element 322 extends in the first intermediate transverse plane indicated by the line BB.

[0079] The second male element 322 has the same characteristics as the first male element (inclined face, vertical face).

[0080] The first shell 3 also includes a second female element 324 adapted to cooperate with a male element of the second shell 4. The second female element extends in the second intermediate transverse plane indicated by the line CC.

[0081] The second female element 324 is formed by an orifice which opens into the internal surface 305 of the first shell 3. This orifice is through, that is to say it also opens into the external surface 306 of the first shell 3. The orifice is intended to receive a male element of the second shell 4.

[0082] The first male element 312, the second male element 322, the first female element 314 and the second female element 324 are part of the aforementioned locking system, allowing the first shell 3 and the second shell 4 to be held in their joined position, in the shape of a barrel 2.

[0083] The first shell 3 also includes at least one first locking element designed to engage with the first cheek 5. In the illustrated embodiment, there are three locking elements, referenced as 330, 331, 332.

[0084] The locking elements 330, 331, 332 are part of the first locking system mentioned above, one of whose functions is to lock the first cheek in relation to the shaft 2.

[0085] Each locking element is a male element projecting from the inner surface of the first shell 3 in the transverse direction (vertical in Figures 3 to 5). Each first locking element is located near the first lateral edge 303 of the first shell 3.

[0086] The first shell 3 also includes at least one second locking element suitable for engaging with the second cheek 6. The second locking elements are not visible in figures 3 to 5, but are visible in the figure but are three in number, and are referenced 340, 341, 342.

[0087] The second blocking elements 340, 341, 342 are part of the second blocking system mentioned above, one of whose functions is to block the second cheek 6 in relation to the shaft 2.

[0088] Each locking element 340, 341, 342 is a male element projecting from the inner surface of the first shell 3 in the transverse direction (vertical in Figures 3 to 5). Each first locking element is located near the second lateral edge 304 of the first shell 3 (located in the foreground in [Fig. 1 1]). Second hull 4

[0089] With reference to figures 6 to 8, the second shell 4 extends over a second angular sector around a longitudinal axis X4, from a first longitudinal edge 401 to a second longitudinal edge 402 opposite the first longitudinal edge 401.

[0090] The second angular sector is complementary to the first angular sector of the first shell 3.

[0091] In the illustrated embodiment, the second shell 4 extends 180 degrees around the longitudinal axis X4. The second shell 4 thus constitutes a half-shell.

[0092] The second shell 4 also extends in a longitudinal direction parallel to the longitudinal axis X4, from a first lateral edge 30 to a second lateral edge 404 opposite the first lateral edge 403.

[0093] The first lateral edge 403 extends in a first extremal transverse plane perpendicular to the axis X4. The second lateral edge 404 extends in a second extremal transverse plane perpendicular to the axis X4 and different from the first extremal transverse plane.

[0094] The second shell 4 has an internal surface 405 facing the longitudinal axis X4, and an external surface 406 opposite the internal surface. The internal surface 405 is concave, and the external surface 406 is convex.

[0095] The internal surface 405 is connected to the external surface 406 by the longitudinal edges 401, 402, and lateral edges 403, 404.

[0096] In the illustrated embodiment, the external surface 406 is substantially cylindrical in revolution. The lateral edges 403, 404 are curved, C-shaped.

[0097] The first longitudinal edge 401 is not straight, so as to delimit a series of teeth 408 (here three teeth) adapted to cooperate with complementary teeth of the second shell 4. Similarly, the second longitudinal edge 402 is not straight, so as to delimit a series of teeth 408 (here three teeth) adapted to cooperate with the teeth 308 of the first shell 3. The teeth have the function of blocking an axial displacement parallel to the axis X4 of the second shell 4 relative to the second shell 4, when the teeth 408 of the second shell 4 are in contact with the respective complementary teeth 308 of the first shell 3.

[0098] The second shell 4 comprises a first tab 410 delimited by the first longitudinal edge 401, and extending in a transverse direction perpendicular to the axis X4. This transverse direction is vertical in figures 3 to 5.

[0099] The first tab 410 is elastic. The first tab 410 has a rest position in which the first tab 410 extends the first longitudinal edge 410 tangentially.

[0100] The first tab 410 is also adapted to adopt a flexed position towards the X4 axis under the effect of an external load, in particular under the effect of pressure exerted on the external surface of the first tab 410 in a centripetal direction. When the first tab 410 ceases to be subjected to load, it naturally returns by elastic recoil to its rest position.

[0101] The second shell 4 comprises a first male element 412 adapted to cooperate with the second female element 324 of the first shell 3. The first male element 412 projects from the external surface of the first tab 410 in a centrifugal direction. In other words, the first tab extends between the first male element and the longitudinal axis X4.

[0102] The first male element 412 extends in a first intermediate transverse plane located between the two extreme transverse planes, and indicated by the line BB on the [Fig.3].

[0103] The first male element 412 has a face inclined relative to the external surface of the first tongue, and a vertical face perpendicular to the external surface of the first tongue 410. The inclined face and the vertical face meet at a vertex forming an edge parallel to the longitudinal axis X4.

[0104] The inclined face facilitates an elastic interlocking of the first male element 412 with the female element 324 of the first shell 3, when the first tab 410 is brought closer to the second by a translational movement in the longitudinal direction. The vertical face forms a stop to hold the first male element 412 interlocked with this female element 324.

[0105] The second shell 4 further comprises a first female element 414 adapted to cooperate with the second male element 322 of the first shell 3. The first female element 414 extends in a second intermediate transverse plane located between the two extreme transverse planes, and indicated by the line CC in [Fig. 6]. This second intermediate transverse plane is different from the first intermediate transverse plane indicated by the line BB in [Fig. 6].

[0106] The first female element 414 is formed by an orifice which opens into the internal surface 405 of the second shell 4. This orifice is through, that is to say it also opens into the external surface 406 of the second shell 4. The orifice is intended to receive the male element 322 of the first shell 3.

[0107] The second shell 4 includes a second tab 420 delimited by the second longitudinal edge 404, and extending in the transverse direction perpendicular to the axis X4 (vertical in figures 3 to 5).

[0108] The second tab 420 is elastic. The second tab 420 has a rest position in which the second tab 420 extends the second longitudinal edge tangentially.

[0109] The second tab 420 is also capable of adopting a flexed position towards the X4 axis under the effect of an external load, in particular under the effect of pressure exerted on the external surface of the second tab 420 in a centripetal direction. When the second tab ceases to be subjected to load, it naturally returns, by elastic recoil, to its rest position.

[0110] The second shell 4 includes a second male element 422 adapted to cooperate with the first female element 314 of the first shell 3. The second male element 422 projects from the outer surface of the second tab 420 in a centrifugal direction. In other words, the second tab 420 extends between the second male element 422 and the longitudinal axis X4.

[0111] The second male element 422 extends in the first intermediate transverse plane indicated by the line BB.

[0112] The second male element 422 has the same characteristics as the first male element (inclined face, vertical face).

[0113] The second shell 4 further comprises a second female element 424 adapted to cooperate with the first male element 312 of the first shell 3. The second element 424 female extends in the second intermediate transverse plane indicated by the line CC.

[0114] The second female element 424 is formed by an orifice which opens into the internal surface 405 of the second shell 4. This orifice is through, that is to say it also opens into the external surface 406 of the second shell 4. The orifice is intended to receive the first male element 312 of the first shell 3.

[0115] The first male element 412, the second male element 422, the first female element 414 and the second female element 424 are part of the aforementioned locking system, allowing the second shell 4 and the second shell 4 to be held in their joined, barrel-shaped position 2.

[0116] The second shell 4 also includes at least one first locking element designed to engage with the first cheek 5. The first locking elements are not visible in Figures 3 to 5, but are referenced 440, 441, 442 in [Fig. 12],

[0117] The first blocking elements 440, 441, 442 are part of the first blocking system mentioned above, and therefore one function is to block the first cheek 5 relative to the shaft 2.

[0118] Each locking element is a male element projecting from the inner surface of the second shell 4 in the transverse direction (vertical in Figures 3 to 5). Each first locking element is located near the second lateral edge 404 of the second shell 4.

[0119] The second shell 4 also includes at least one second locking element designed to engage with the second cheek 6. In the illustrated embodiment, there are three locking elements, referenced as 430, 431, 432.

[0120] The locking elements 430, 431, 432 are part of the second locking system mentioned above, one of whose functions is to lock the second cheek 6 in relation to the shaft 2.

[0121] Each locking element 430, 431, 432 is a male element projecting from the inner surface of the second shell 4 in the transverse direction (vertical in Figures 3 to 5). Each locking element 430, 431, 432 is located near the first lateral edge 403 of the second shell 4.

[0122] In the illustrated embodiment, the second shell 4 has an identical shape to that of the first shell 3. First cheek 5

[0123] The first cheek 5 comprises a disk 501 extending around a longitudinal axis X5.

[0124] The disc has an outer face 502, intended to be oriented towards the outside of the reel 1, and an inner face 503 opposite to the outer face.

[0125] The first cheek 5 further includes a rib 504 projecting on the inner face 503, so as to extend around the longitudinal axis X5. The radius of the rib 504 is less than the radius of the disk 501. The rib 504 is circular.

[0126] The first cheek 5 further comprises a plurality of stiffening arms 506. Each stiffening arm 506 projects from the disc 501, and extends radially from the rib 504 towards the longitudinal axis X5.

[0127] The first cheek 5 includes at least one blocking element designed to engage with the barrel 2. Thus, each blocking element is part of the first blocking system discussed previously, whose function is to block the first cheek 5 in relation to the barrel 2.

[0128] More specifically, there are 6 locking elements, and they are respectively referenced 510, 511, 512, 520, 521, 522. The unlocking elements 510, 511, 512 are intended to cooperate with the first hull 3, and the locking elements 520, 521, 522 are intended to cooperate with the second hull 4.

[0129] Each locking element 510, 511, 512, 520, 521, 522 is a female element suitable for receiving a respective male locking element of the first shell 3 or the second shell 4. Each female locking element is formed by a light which opens into a radially external surface of the rib 504. Second cheek 6

[0130] The second cheek 6 comprises a disk 601 extending around a longitudinal axis X6.

[0131] The disc has an outer face 602, intended to be oriented towards the outside of the reel 1, and an inner face 603 opposite to the outer face.

[0132] The second cheek 6 further includes a rib 604 projecting on the inner face 603, so as to extend around the longitudinal axis X6. The radius of the rib 604 is less than the radius of the disk 601. The rib 604 is circular.

[0133] The second cheek 6 further comprises a plurality of stiffening arms 606. Each stiffening arm 606 projects from the disc 601, and extends radially from the rib 604 towards the longitudinal axis X6.

[0134] The second cheek 6 includes at least one blocking element designed to engage with the barrel 2. Thus, each blocking element is part of the second blocking system discussed previously, whose function is to block the second cheek 6 in relation to the barrel 2.

[0135] More specifically, there are 6 blocking elements, and they are respectively referenced as 610, 611, 612, 620, 621, 622. The unlocking elements 610, 611, 612 are intended to cooperate with the first hull 3, and the blocking elements 620, 621, 622 are intended to cooperate with the second hull 4.

[0136] Each locking element 610, 611, 612, 620, 621, 622 is a female element suitable for receiving a respective male locking element of the first shell 3 or the second shell 4. Each female locking element is formed by a light which opens onto a radially external surface of the rib 604.

[0137] In the illustrated embodiment, the second cheek 6 has an identical shape to that of the first cheek 5. Junction and disjunction of shells 3, 4

[0138] We have seen previously that, when the reel 1 is formed, the first shell 3 and the second shell 4 are in a joined position, in which the first shell 3 and the second shell 4 together form the barrel 2. In this joined position, the respective axes X3 and X4 coincide with the central axis X of the barrel 2.

[0139] The first shell 3 and the second shell 4 are further able to adopt a disjoint position which is shown in Figures 11 to 13. In this disjoint position, the first shell 3 and the second shell 4 are at a distance from each other. The axes X3 and X4 are parallel (as shown in particular in [Fig. 12]).

[0140] Furthermore, the respective locking elements of the first shell 3 and the second shell 4 are aligned in pairs in a transverse direction perpendicular to the axes X3 and X4 (this direction is vertical in Figures 11 to 13). More precisely, the following are placed opposite each other in the transverse direction: • the male element 312 and the female element 424, • the female element 314 and the male element 422, • the male element 322 and the female element 414, • the female element 324 and the male element 412.

[0141] To move from the disjoint position to the joined position, the two shells 3 and 4 are brought together by relative translation in the transverse direction. In doing so, the male / female element pairs identified above come together and fit elastically.

[0142] For example, the male element 312 moves closer to the female element 424, so that its inclined face comes into contact with the longitudinal edge 401 of the second shell 4. As the two shells 3 and 4 continue to move closer together, the tab 310 flexes centripetally, and the inclined face of the male element 314 slides along the second shell 4. At a certain point, the male element overhangs the opening formed by the female element 424, and the inclined face ceases to be in contact with the second shell. The tab 310 naturally returns to its rest position, and, in so doing, the male element 312 engages in the opening formed by the female element 424.

[0143] The engagement of the three other pairs of male / female elements occurs concomitantly, and in the same way.

[0144] During the transition from the disjoint position to the joined position, the locking system formed by the locking elements 312, 314, 322, 324, 312, 314, 322, 324 automatically switches to its locked configuration, which prevents the two shells 3, 4 from leaving this joined position by their mutual separation in the transverse direction.

[0145] In this locked configuration: • The male element 312 is received in the female element 424, • The female element 314 received the male element 422, • The male element 322 is received in the female element 414, • the female element 324 received the male element 412.

[0146] To allow the two shells 3 and 4 to leave their joined position by moving apart in the transverse direction, that is, by a movement opposite to that described previously, it is first necessary to ensure that each of the four male elements 312, 322, 412, 422 leaves the corresponding female element in which it is received. Only once these conditions are met does it become possible for the two shells 3 and 4 to be separated in the transverse direction, in other words, to return to the disjointed position shown in Figures 11 to 13. Assembly of the first cheek 5 with the shaft 2

[0147] Each locking element 510, 511, 512, 520, 521, 522 of the first cheek 5 is adapted to adopt a mounted position in which the locking element is engaged with the shaft 2, so as to block a translation of the first cheek 5 relative to the shaft 2 in a longitudinal direction parallel to the X axis.

[0148] Furthermore, each locking element 510, 511, 512, 520, 521, 522, in its mounted position, prevents the first cheek 5 from rotating relative to the barrel 2 around the X axis. This has the advantage of allowing the reel 1 to be unwound by rotating the first cheek 5 around its axis; due to the aforementioned rotational locking, this movement is transmitted to the barrel 2, which then rotates on itself, allowing a cable wound around the barrel 2 to be unwound.

[0149] The locking elements 510, 511, 512, 520, 521, 522 are designed to be placed in their respective mounted positions simultaneously; in this case, the first cheek 5 is said to be in a position joined to the shaft 2. In this joined position, shown in Figures 11 and 12, we have: • the locking element 510 engaged with the locking element 330 of the first hull 3, • the locking element 511 engaged with the locking element 331 of the first hull 3, • the locking element 512 engaged with the locking element 332 of the first hull 3, • the locking element 520 engaged with the locking element 440 of the second hull 4, • the locking element 521 engaged with the locking element 441 of the second hull 4, and • the locking element 522 in contact with the locking element 442 of the second hull 4.

[0150] When the cheek 5 is in its position joined to the barrel 2, the axes X5, X3 and X4 are confused. Furthermore, the lateral edge 303 is arranged against the inner face 503 of the first cheek.

[0151] Furthermore, each locking element 510, 511, 512, 520, 521, 522 of the first cheek 5 is suitable for adopting a disassembled position in which the locking element is not engaged with the first shell 3 and is not engaged with the second shell 4, so as to allow a translation of the first cheek 5 relative to the first shell 3 and the second shell 4 in the longitudinal direction (parallel to the X axis).

[0152] Each locking element 510, 511, 512, 520, 521, 522 is further adapted to move from its mounted position to its dismounted position when the first shell 3 and the second shell 4 are moved away from the first locking element in the transverse direction (perpendicular to the X-axis). As previously stated, such movement is permitted by the locking system formed by the shells 3, 4 only if this locking system is in its unlocked configuration.

[0153] There is a disjoint position of the first cheek, shown in figures 13 to 15, in which the locking elements 510, 511, 512, 520, 521, 522 of the first cheek 5 are all in their disassembled position simultaneously.

[0154] In this disjoint position, each of the locking elements 510, 511, 512, 520, 521, 522 is aligned in the transverse direction with the corresponding complementary locking element of the first shell 3 or the second shell 4. In this disjoint position, the locking elements 510, 511, 512, 520, 521, 522 of the first are located between the first shell 3 and the second shell 4. Furthermore, in this disjoint position, the axes X5, X3 and X4 are parallel and coplanar (but not coincident).

[0155] To mount the first cheek 5 to the barrel 2, the first cheek can be placed in this disjointed position as shown in Figures 13 to 15. Then, the first shell 3 is moved in translation in the transverse direction towards the rib 604, so that the female locking elements 510, 511, 512 receive the male locking elements 330, 331, 332. Furthermore, the second shell 4 is moved in translation in the transverse direction towards the rib 604 (i.e. in the opposite direction), so that the female locking elements 520, 521, 522 receive the male locking elements 440, 441, 442. During this process, the two shells 3 and 4 are brought closer together and move from their disjointed position to their joined position; the locking system therefore locks automatically, as already described. Mounting the second cheek 6 with the shaft 2

[0156] Each locking element 610, 611, 612, 620, 621, 622 of the second cheek 6 is adapted to adopt a mounted position in which the locking element is engaged with the shaft 2, so as to block a translation of the second cheek 6 relative to the shaft 2 in a longitudinal direction parallel to the X axis.

[0157] Furthermore, each locking element 610, 611, 612, 620, 621, 622, in its mounted position, prevents the second cheek 6 from rotating relative to the barrel 2 around the X axis. This has the advantage of allowing the reel 1 to be unwound by rotating the second cheek 6 around its axis; due to the aforementioned rotational locking, this movement is transmitted to the barrel 2, which then rotates on itself, allowing a cable wound around the barrel 2 to be unwound.

[0158] The locking elements 610, 611, 612, 620, 621, 622 are suitable for being placed in their respective mounted positions simultaneously; in this case, the second cheek 6 is said to be in a position joined to the shaft 2. In this joined position, we have: • the locking element 610 engaged with the locking element 430 of the second hull 4, • the locking element 611 engaged with the locking element 431 of the second hull 4, • the locking element 612 engaged with the locking element 432 of the second hull 4, • the locking element 620 engaged with the locking element 340 of the first hull 3, • the locking element 621 engaged with the locking element 341 of the first hull 3, and • the locking element 622 in contact with the locking element 342 of the first hull 3.

[0159] When the cheek 5 is in its position joined to the shaft 2, the axes X6, X3 and X4 coincide. Furthermore, the lateral edge 403 is arranged against the inner face 603 of the second cheek 6.

[0160] Furthermore, each locking element 610, 611, 612, 620, 621, 622 of the second cheek 6 is adapted to adopt a disassembled position in which the locking element is not engaged with the first shell 3 and is not engaged with the second shell 4, so as to allow a translation of the second cheek 6 relative to the first shell 3 and the second shell 4 in the longitudinal direction (parallel to the X axis).

[0161] Each locking element 610, 611, 612, 620, 621, 622 is further adapted to move from its mounted position to its dismounted position when the first shell 3 and the second shell 4 are moved away from the first locking element in the transverse direction (perpendicular to the X-axis). As previously stated, such movement is permitted by the locking system formed by the shells 3, 4 only if this locking system is in its unlocked configuration.

[0162] There exists a disjoint position of the second cheek, similar to the disjoint position of the first cheek 5, in which the blocking elements 610, 611, 612, 620, 621, 622 of the second cheek 6 are all in their disjoint position simultaneously.

[0163] In this disjoint position, each of the locking elements 610, 611, 612, 620, 621, 622 is aligned in the transverse direction with the corresponding complementary locking element of the first shell 3 or the second shell 4. In this disjoint position, the locking elements 610, 611, 612, 620, 621, 622 of the first are located between the first shell 3 and the second shell 4. Furthermore, in this disjoint position, the axes X6, X3 and X4 are parallel and coplanar (but not coincident).

[0164] To mount the first cheek 6 to the barrel 2, the first cheek can be placed in this disjointed position. Then, the first shell 3 is moved translationally in the transverse direction towards the rib 604, so that the female locking elements 510, 511, 512 receive the male locking elements 330, 331, 332. Furthermore, the second shell 4 is moved translationally in the transverse direction towards the rib 604 (i.e., in the opposite direction), so that the female locking elements 520, 521, 522 receive the male locking elements 440, 441, 442. During this process, the two shells 3 and 4 are brought closer together and move from their disjointed position to their joined position; the locking system thus locks automatically, as already described. Assembling the reel 1

[0165] To form the reel 1 from the first shell 3, the second 4, the first cheek 5 and the second cheek 6, the following procedure can be followed.

[0166] The first shell 3 and the second shell 4 are placed in their disjoint position, and the first cheek is placed in its disjoint position, as shown in [Fig. 12]. The second cheek 6 is also placed in its disjoint position, opposite the first cheek 5, such that their respective axes X5 and X6 coincide. The two cheeks 5 and 6 are then facing each other.

[0167] Next, the two shells 3 and 4 are brought together in the transverse direction, which simultaneously causes the formation of the barrel 2, the mounting of the first cheek 5 to this barrel 2, and the mounting of the second cheek 6 to this barrel 2. The reel 1 is then obtained as represented in particular in figures 1, 2 and 9. Releasing the reel 1

[0168] A method for dismantling the reel 1 comprises the following steps.

[0169] It is assumed that in a preliminary step, the cable which was possibly wound around the barrel 2 in the annular storage space provided between the cheeks 5 and 6 was removed from the reel 1.

[0170] A user manually unlocks the locking system by applying pressure to each tab 310, 320 of the first shell 3 and each tab 410, 420 of the second shell, then moving the two shells 3 and 4 apart in the transverse direction. During this movement, the locking elements 510, 511, 512, 520, 521, 522 of the first cheek 5 and the locking elements 610, 611, 612, 620, 621, 622 of the first cheek 6 disengage from the corresponding locking elements of the first shell 3 and the second shell 4.

[0171] Such a process requires synchronization of the pressures exerted on the tabs to unlock the locking system which holds the two shells 3 and 4 in their joined position, which is not necessarily easy.

[0172] Another method for dismantling the reel 1, which is much more efficient and faster, includes the following steps.

[0173] A user grasps the reel 1 and positions it at a certain height above the ground, such that the central axis X of the drum is not perpendicular to the ground. Ideally, the central axis X is oriented horizontally, i.e., parallel to the ground, but in practice there may be an angle between the central axis and the ground plane, typically an angle between 0 and 30 degrees. The purpose of this orientation is that, once released, both sides 3 and 4 of the reel will ultimately collide with the ground.

[0174] The user releases the reel 1, or throws it towards the ground. The two cheeks 3 and 4 collide with the ground by their respective circumferential edges. If the two cheeks 3 and 4 do not collide with the ground simultaneously, due to the fact that the aforementioned angle is not perfectly zero, then the reel 1 naturally tilts into a horizontal position, such that once the two cheeks 3 and 4 are in contact with the ground, the two cheeks 5 and 6 extend vertically, and the barrel 2 is facing the ground.

[0175] During this collision, a shock wave is generated in the reel 1. This shock wave propagates from each cheek 3, 4 towards the barrel 2, and eventually reaches the tabs 310, 320, 410, 420. The shock wave creates vibrations that cause the tabs 310, 320, 410, 420 to flex, resulting in The locking system is automatically unlocked. At this point, the two shells 3 and 4 are free to separate. This separation also occurs automatically, under the effect of gravity. Indeed, as mentioned previously, the barrel 2 is facing the ground, and the annular space between the cheeks 3 and 5 is clear. Thus, the shells 3 and 4 are free to move apart and fall to the ground. If, for example, one of the two shells is positioned below the other, the lower shell will simply fall naturally due to gravity. If the two shells are side by side, they will naturally move apart by pivoting relative to each other.

[0176] Preferably, the fall of the reel 1 is carried out such that the kinetic energy of the reel is between 4 and 100 joules when the reel 1 collides with the ground. The parameters that allow this kinetic energy to be determined are the mass m of the reel and the velocity v reached by the reel 1 when it collides with the ground, according to the formula E = ρ / 2 mv². The velocity v itself depends on the initial velocity of the reel and its initial height m (i.e., its distance from the ground). When the initial velocity of the reel is zero (in other words, when the reel is simply dropped, and not thrown), the fall time and the velocity v can be determined from the height h, by combining this height with the acceleration due to gravity constant g.

[0177] The mass m of the reel 1 is preferably between 1 and 12 kg.

[0178] The height h from which the reel is released is preferably between 30 centimeters and 1 meter.

[0179] The table below lists examples of possible combinations of values ​​for the parameters m, h, and therefore for the kinetic energy E: h (meters) 0.3 0.9 3 0.3 0.9 3 0.9 m(kg) 1.72 1.72 1.72 1.4 1.4 1.4 11 E (joules) 5 15.23 50.7 4.1 12.36 41.2 97.7 Other ways of implementing this

[0180] This disclosure is not limited to the embodiment shown in the figures.

[0181] In other embodiments, the following may be provided: • the first shell 3 and the second shell 4 can extend over different, and not equal, respective angular sectors; • the first shell 3 or the second shell 4 may include a number of locking elements with the other shell other than 4, for example one locking element, two locking elements or three locking elements; the first shell 3 or the second shell 4 may include a number of blocking elements with the first cheek 5 or the second cheek 6 different from 3; this number may in particular be equal to 1 or 2; the first shell 3 or the second shell 4 may include a number of blocking elements with the first cheek 5 or the second cheek 6 different from 3; this number may in particular be equal to 1 or 2; the first cheek 5 or the second cheek 6 may include a number of blocking elements with the first shell 3 or with the second 4 different from 6; this number may in particular be equal to 1 or 2; the first cheek 5 or the second cheek 6 can come into contact with only one of the two hulls 3 and 4, and not both simultaneously; it can thus be foreseen that the first cheek 5 is selectively blocked by the first hull 3 and that the second cheek 6 is selectively blocked by the second hull 4, or vice versa; The male and female elements cooperating with each other can be reversed; thus, it is possible to foresee that each cheek 5, 6 has at least one male blocking element; The 504 or 606 rib can be replaced by a disc with a reduced radius compared to the 501 or 601 disc.

Claims

1. Demands Touret (1) consisting of: • a first shell (3) and a second shell (4) in a joined position in which the first shell (3) and the second shell (4) together form a shaft (2) extending around an axis (X), the first shell (3) and the second shell (4) being specific to: • adopt a disjoint position in which the first shell (3) and the second shell (4) are at a distance from each other, • to move from the joined position to the disjoint position when the first shell (3) and the second shell (4) are moved away from each other in a transverse direction perpendicular to the axis (X); • a first cheek (5) comprising a first locking element (510, 511, 512, 520, 521, 522) in a first mounted position in which the first locking element is engaged with the shaft (2), so as to block a translation of the first cheek (5) relative to the shaft (2) in a longitudinal direction parallel to the axis (X), the first locking element (510, 511, 512, 520, 521, 522) being specific to: • adopt a first disassembled position in which the first locking element is not engaged with the first shell (3) and is not engaged with the second shell (4), so as to allow a translation of the first cheek (5) relative to the first shell (3) and the second shell (4) in the longitudinal direction, • to move from the first mounted position to the first dismounted position when the first shell (3) and the second shell (4) are moved away from the first locking element in the transverse direction; • a second cheek (6) comprising a second blocking element (610, 611, 612, 620, 621, 622) located in a second mounted position in which the second locking element is engaged with the shaft (2), so as to block a translation of the second cheek (6) relative to the shaft (2) in the longitudinal direction, the second locking element (610, 611, 612, 620, 621, 622) being specific to: • adopt a second disassembled position in which the second locking element is not engaged with the first shell (3) and is not engaged with the second shell (4), so as to allow a translation of the second cheek (6) relative to the first shell (3) and the second shell (4) in the longitudinal direction, • to move from the second mounted position to the second dismounted position when the first shell (3) and the second shell (4) are moved away from the second locking element in the transverse direction; an elastic interlocking locking system formed by the first shell (3) and the second shell (4), the locking system being suitable for adopting: • a locked configuration in which the locking system locks the first shell (3) and the second shell (4) in the joined position, • an unlocked configuration in which the locking system allows the first shell (3) and the second shell (4) to move from the joined position to the disjoined position; in which: • when the first shell (3) and the second shell (4) are in the joined position, the barrel (2) prevents the first locking element (510, 511, 512, 520, 521, 522) from moving from the first assembled position to the first disassembled position and prevents the second locking element (610, 611, 612, 620, 621, 622) to move from the second mounted position to the second dismounted position, • when the first shell (3) and the second shell (4) are in the disjointed position, the first shell (3) and the second shell (4) allow the first locking element (510, 511, 512, 520, 521, 522) to move from the first mounted position to the first dismounted position, and allow the second locking element (610, 611, 612, 620, 621, 622) to move from the second mounted position to the second dismounted position, • wherein the reel (1) is configured so that the locking system moves from the locked position to the unlocked position under the effect of a shock wave caused by a collision between the reel (1) and a ground, without requiring any other unlocking action on the reel (1).

2. Reel (1) according to the preceding claim, wherein the locking system is adapted to move from the locked configuration to the unlocked configuration by an external stimulus, and to move from the unlocked configuration to the locked configuration by elastic return in the absence of an external stimulus.

3. Grinder (1) according to any one of the preceding claims, wherein: • the first locking element (510, 511, 512, 520, 521, 522) in the first mounted position blocks a rotation of the first cheek (5) relative to the barrel (2) around the axis (X), and / or • the second locking element (610, 611, 612, 620, 621, 622) in the second mounted position blocks a translation of the second cheek (6) relative to the barrel (2) around the axis (X).

4. Touret (1) according to any one of the preceding claims, wherein: • the first locking element (510, 511, 512, 520, 521, 522) extends between the first cheek (5) and the second cheek (6) when the first locking element is in the first mounted position, and / or • the second blocking element (610, 611, 612, 620, 621, 622) extends between the first cheek (5) and the second cheek (6) when the second blocking element is in the second mounted position.

5. Touret (1) according to any one of the preceding claims, wherein: • the first locking element (510, 511, 512, 520, 521, 522) is a female element in which a male element of the first shell (3) or of the second shell (4) is received in the first mounted position, and / or • the second locking element (610, 611, 612, 620, 621, 622) is a female element in which another male element of the first shell (3) or of the second shell (4) is received in the second mounted position.

6. Touret (1) according to any one of the preceding claims, wherein: • the first cheek (5) comprises a plurality of first locking elements (510, 511, 512, 520, 521, 522) including at least one locking element (510, 511, 512) engaged with the first shell (3) and at least one other locking element (520, 521, 522) simultaneously engaged with the second shell (4), and / or • the second cheek (6) comprises a plurality of second locking elements (610, 611, 612, 620, 621, 622) including at least one locking element (610, 611, 612) engaged with the first shell (3) and at least one other locking element (620, 621, 622) simultaneously engaged with the second shell (4).

7. Touret (1) according to any one of the preceding claims, wherein the first shell (3) and the second shell (4) are two half-shells suitable for each extending 180 degrees around the axis (X).

8. Kit for forming a reel (1), the kit consisting of: • a first shell (3) and a second shell (4) • adopt a joined position in which the first hull (3) and the second hull (4) together form a shaft (2) extending around an axis (X), • adopt a disjoint position in which the first shell (3) and the second shell (4) are at a distance from each other, • to move from the joined position to the disjoint position when the first shell (3) and the second shell (4) are moved away from each other in a transverse direction perpendicular to the axis; a first cheek (5) comprising a first blocking element (510, 511, 512, 520, 521, 522) specific to: • adopt a first assembled position in which the first locking element is engaged with the barrel (2), so as to prevent translation of the first cheek (5) relative to the barrel (2) in a longitudinal direction parallel to the axis (X), • adopt a first disassembled position in which the first locking element is not engaged with the first shell (3) and is not engaged with the second shell (4), so as to allow translation of the first cheek (5) relative to the first shell (3) and the second shell (4) in the longitudinal direction, • to move from the first mounted position to the first dismounted position when the first shell (3) and the second shell (4) are moved away from the first locking element in the transverse direction; a second cheek (6) comprising a second blocking element (610, 611, 612, 620, 621, 622) specific to: • adopt a second mounted position in which the second locking element is engaged with the shaft (2), so as to block a translation of the second cheek (6) relative to the shaft (2) in the longitudinal direction, • adopt a second disassembled position in which the second locking element is not engaged with the first shell (3) and is not engaged with the second shell (4), so as to allow a translation of the second cheek (6) relative to the first shell (3) and the second shell (4) in the longitudinal direction, • to move from the second mounted position to the second dismounted position when the first shell (3) and the second shell (4) are moved away from the second locking element in the transverse direction; an elastic interlocking locking system formed by the first shell (3) and the second shell (4), the locking system being suitable for adopting: • a locked configuration in which the locking system locks the first shell (3) and the second shell (4) in the joined position, • an unlocked configuration in which the locking system allows the first shell (3) and the second shell (4) to move from the joined position to the disjoined position; in which the barrel (2) extends between the first cheek (5) and the second cheek (6) so that the kit forms a reel (1) when the first locking element (510, 511, 512, 520, 521, 522) is in the first mounted position and the second locking element (610, 611, 612, 620, 621, 622) is simultaneously in the second mounted position; in which: • when the first shell (3) and the second shell (4) are in the joined position, the barrel (2) prevents the first locking element (510, 511, 512, 520, 521, 522) from moving from the first assembled position to the first disassembled position and prevents the second locking element (610,

9.

10.

11. 611, 612, 620, 621, 622) to move from the second mounted position to the second dismounted position, • when the first shell (3) and the second shell (4) are in the disjointed position, the first shell (3) and the second shell (4) allow the first locking element (510, 511, 512, 520, 521, 522) to move from the first mounted position to the first disassembled position, and allow the second locking element (610, 611, 612, 620, 621, 622) to move from the second mounted position to the second disassembled position • the kit being further configured so that the locking system moves from the locked position to the unlocked position under the effect of a shock wave caused by a collision between the reel (1) and a ground, without requiring any further unlocking action on the reel (1). Method of dismantling a reel (1) according to any one of claims 1 to 7 or formed from a kit according to claim 8, comprising dropping the reel (1) onto the ground, so as to move the locking system from the locked position to the unlocked position under the effect of a shock wave caused by the collision between the reel (1) and the ground. Method according to the preceding claim, comprising orienting the reel (1) so that the first cheek (5) and the second cheek (6) collide with the ground. A method according to any one of claims 9 and 10, wherein the reel has a kinetic energy of between 4 and 100 joules when the reel 1 collides with the ground.

Images