Easily disassemblable reel, corresponding kit for forming a reel and method for disassembling a corresponding reel

Abstract

The invention relates to a reel (1) comprising a first shell (3) and a second shell (4) together forming a barrel (2), a first flange (5) and a second flange (6), and a resiliently interlocking locking system formed by the first shell (3) and the second shell (4), the locking system being capable of adopting: 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 pass from the joined position to a detached position.

Description

[0001] DESCRIPTION

[0002] TITLE: Easy-to-disassemble reel and corresponding kit to assemble a reel

[0003] FIELD OF INVENTION

[0004] The present invention relates to a reel, a kit for forming a reel, and a method for dismantling a reel.

[0005] STATE OF THE ART

[0006] A conventional reel 1 consists of two sides and a barrel extending between them. It is advantageous to be able to disassemble such a reel for transport and / or to reduce its size before winding cables onto it and / or after the cable has been fully unwound from the reel.

[0007] We know from the state of the art a demountable reel 1 in which the barrel comprises two separable shells, the two cheeks also being separable from the barrel.

[0008] Each of the two cheeks includes a bayonet system to keep the cheek attached to the barrel, and at the same time to keep the two shells together in barrel shape.

[0009] 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.

[0010] Therefore, two manual intervention steps are required to dismantle this grinder, by applying rotational movements.

[0011] Furthermore, document FR2617148 proposed another reel with a drum made of two separable halves. However, this reel has the drawback 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. Document DE9017135U1 describes another reel with this drawback. This reel comprises not only two end plates and two halves, but also two supports ("Bügel") which are two additional parts. These two supports are mounted on the two halves to hold them in a joined position. To disassemble the reel, a user must perform the actions of rotating the two supports relative to the two halves.

[0012] DESCRIPTION OF THE INVENTION

[0013] One goal is to further simplify the dismantling of a grinding wheel.

[0014] 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 able to: o adopt a disjoint position in which the first hull and the second hull are at a distance from each other, o pass from the joined position to the disjoint position when the first hull and the second hull are moved away from each other in a transverse direction perpendicular to the axis;

[0015] • 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 able to: o 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, o move from the first mounted position to the first disassembled position when the first and second shells are away from the first locking element in the transverse direction;

[0016] • 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 a translation of the second cheek relative to the barrel in the longitudinal direction, the second locking element being able to: o 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, o move from the second mounted position to the second disassembled position when the first and second shells are away from the second locking element in the transverse direction;

[0017] • an elastic interlocking locking system formed by the first shell and the second shell, the locking system being able to adopt: o a locked configuration in which the locking system blocks the first shell and the second shell in the joined position, o an unlocked configuration in which the locking system allows the first shell and the second shell to move from the joined position to the disjointed position;

[0018] • wherein: o 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, o when the first shell and the second shell are in the disassembled position, the first shell and the second shell allow the first locking element to move from the first assembled position to the first disassembled position, and allow the second locking element to move from the second assembled position to the second disassembled position,

[0019] • the reel 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 and a ground, without requiring any other unlocking action on the reel.

[0020] The grinding wheel allows three workpiece spacings in the transverse direction perpendicular to the axis of the drum:

[0021] • the mutual distancing of the first hull and the second hull,

[0022] • the distance of the first and second shells from the first locking element, and

[0023] • the distance of the first shell and the second shell from the second locking element.

[0024] The fact that these separations can occur in the same direction (the transverse direction) promotes a natural separation of the cheeks and shells, and allows the reel to be disassembled in a single step.

[0025] Furthermore, the spring-loaded locking system is designed to automatically unlock upon impact. Consequently, the reel can be automatically disassembled by dropping it onto the ground. The collision between the reel and the ground generates a shockwave capable of unlocking the locking mechanism. No further action by the user is required to unlock the reel, unlike the reel described in document DE9017135U1. This reel would be unable to disassemble if dropped due to its two supports. Similarly, the two reels discussed in the introduction, which respectively use bayonet fittings and clamping bolts, do not disassemble when dropped.

[0026] The reel may include the following optional features taken alone or in combination where technically possible.

[0027] Preferably, which locking system is capable of switching from the unlocked configuration to the locked configuration by elastic return in the absence of external stress.

[0028] 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.

[0029] 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.

[0030] Preferably, the first locking element is a female element into which is received a male element of the first shell or of the second shell in the first mounted position, and / or the second locking element is a female element into which is received another male element of the first shell or of the second shell in the second mounted position.

[0031] 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.

[0032] Preferably, the first hull and the second hull are two clean half-hulls, each extending 180 degrees around the axis.

[0033] Another object of this disclosure is a kit for forming a reel, the kit comprising a first hull and a second hull suitable for: o adopting a joined position in which the first hull and the second hull together form a shaft extending around an axis, o adopting a disjointed position in which the first hull and the second hull are at a distance from each other, o passing from the joined position to the disjointed position when the first hull and the second hull are moved away from each other in a transverse direction perpendicular to the axis;

[0034] • a first cheek comprising a first locking element suitable for: o adopting 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, o adopting 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, o moving from the first mounted position to the first disassembled position when the first and second shells are away from the first locking element in the transverse direction;

[0035] • a second cheek comprising a second locking element suitable for: o adopting a second mounted position in which the second locking element is engaged with the barrel, so as to block a translation of the second cheek relative to the barrel in the longitudinal direction, o adopting 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, o moving from the second mounted position to the second disassembled position when the first and second shells are away from the second locking element in the transverse direction;

[0036] • an elastic interlocking locking system formed by the first shell and the second shell, the locking system being able to adopt: o a locked configuration in which the locking system blocks the first shell and the second shell in the joined position, o an unlocked configuration in which the locking system allows the first shell and the second shell to move from the joined position to the disjointed position;

[0037] • 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;

[0038] • and in which: o 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, o when the first shell and the second shell are in the disassembled position, the first shell and the second shell allow the first locking element to move from the first assembled position to the first disassembled position, and allow the second locking element to move from the second assembled position to the second disassembled position,

[0039] • the kit is 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 and the ground, without requiring any further unlocking action on the reel.

[0040] Yet another object of this disclosure is a method for 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.

[0041] Preferably, the reel is oriented so that the first cheek and the second cheek collide with the ground.

[0042] Preferably, the reel has a kinetic energy between 4 and 100 joules when the reel collides with the ground.

[0043] DESCRIPTION OF THE FIGURES Other features, purposes 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:

[0044] Figure 1 is a side view of a reel according to one embodiment.

[0045] Figure 2 is a cross-sectional view of the reel in Figure 1, along the line EE shown in Figure 1.

[0046] Figure 3 is a top view of a first shell according to one embodiment, and constituting a part of the reel of figure 1.

[0047] Figure 4 is a cross-sectional view of the hull of Figure 3 in a plane marked by the line BB of Figure 3.

[0048] Figure 5 is another cross-sectional view of the hull of figure 3 in a plane marked by the line CC of figure 3.

[0049] Figure 6 is a top view of a second shell according to one embodiment, and constituting a part of the reel of figure 1.

[0050] Figure 7 is a cross-sectional view of the hull of Figure 6 in a plane marked by the line BB of Figure 6.

[0051] Figure 8 is another cross-sectional view of the hull of figure 6 in a plane marked by the line CC of figure 6.

[0052] Figure 9 includes two views of a first cheek constituting a part of the reel in Figure 1: a side view, and a front view.

[0053] Figure 10 includes two views of a second cheek forming part of the reel in Figure 1: a side view, and a front view.

[0054] Figure 11 is a cross-sectional view of the reel in Figure 1.

[0055] Figure 12 is a cross-sectional view of the reel in Figure 1, along line FF shown in Figure 11.

[0056] Figure 13 is a front view of the first hull, the second hull and the first cheek which are respectively shown in figures 3, 6 and 9, in a state before final assembly.

[0057] Figure 14 is a cross-sectional view of the first hull, the second hull and the first one respectively shown in Figures 3, 6 and 9, along line DD of Figure 13. Figure 15 is a cross-sectional view of the first hull, the second hull and the first one respectively shown in Figures 3, 6 and 9, along line FF of Figure 14.

[0058] Across all figures, similar elements bear identical references.

[0059] DETAILED DESCRIPTION

[0060] Figure 1 and Figure 2 show a reel 1 according to one embodiment.

[0061] The reel 1 includes a barrel 2, a first cheek 5 and a second cheek 6.

[0062] The shaft 2 extends around a central axis X, which is horizontal in Figure 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.

[0063] 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.

[0064] 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, cheeks 5, 6 and barrel 2 define an annular storage space for a cable.

[0065] Barrel 2

[0066] The barrel 2 is hollow. The barrel 2 thus has an internal surface 20 closed on itself and oriented towards the central axis X, and an external surface 22 opposite the internal surface 20. The external surface 22 is turned outwards from the reel 1, and forms the bottom of the annular storage space where a cable can be stored wound around the barrel 2. In the illustrated embodiment, the external surface 22 is cylindrical.

[0067] The barrel 2 comprises a first hull 3 (visible in figure 1, and shown on the left of figure 2) and a second hull 4 (not visible in figure 1, but shown on the right of figure 2).

[0068] 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, we will see later that the first hull 3 and the second hull 4 are two parts that can be separated.

[0069] Locking and blocking systems The reel 1 includes a locking system designed to adopt a locked configuration in which the locking system blocks the first shell 3 and the second shell 4 in the joined position.

[0070] The locking system is an elastic interlocking system.

[0071] The locking system is also capable of adopting an unlocked configuration, in which the locking system allows 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.

[0072] The locking system is designed to transition from the locked to the unlocked configuration under external stress, and from the unlocked to the locked configuration by elastic return in the absence of external stress. As will be seen below, an external stress can be caused, in particular, by a collision between the reel 1 and the ground. The locked configuration is thus the resting configuration of the locking system.

[0073] The locking system is formed by the first shell 3 and 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.

[0074] 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.

[0075] The reel 1 also includes a second locking system for locking the second cheek 6 relative to the barrel 2, particularly against translation along the central axis X. This 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); that is, the second cheek 6 mechanically cooperates with the first shell 3 and also with the second shell 4.

[0076] 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.

[0077] First hull 3

[0078] 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 to the first longitudinal edge 301.

[0079] 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.

[0080] The first hull 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.

[0081] 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.

[0082] 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.

[0083] The internal surface 305 is connected to the external surface 306 by the longitudinal edges 301, 302, and lateral edges 303, 304.

[0084] In the illustrated embodiment, the external surface 306 is substantially cylindrical in revolution. The lateral edges 303, 304 are curved, C-shaped.

[0085] 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 blocking an axial displacement parallel to the axis X3 of the first shell 3 relative to the second shell 4, when the teeth of the first shell 3 are engaged with the respective complementary teeth of the second shell 4.

[0086] The first shell 3 includes 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.

[0087] 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.

[0088] The first tab 310 is also designed 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.

[0089] 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.

[0090] 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 in figure 3.

[0091] 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.

[0092] The inclined face facilitates the 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 acts as a stop to hold the first male element interlocked with this female element.

[0093] The first shell 3 also includes a first female element 314 designed 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 Figure 3. This second intermediate transverse plane is different from the first intermediate transverse plane indicated by line BB. The first female element 314 is formed by an opening that leads into the internal surface 305 of the first shell 3. This opening is through-hole, meaning that it also leads into the external surface 306 of the first shell 3. The opening is designed to receive a male element of the second shell 4.

[0094] The first shell 3 includes a second tongue 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).

[0095] 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.

[0096] 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.

[0097] The first shell 3 includes a second male element 322 designed to cooperate with a female element of the second shell 4. The second male element projects from the outer 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.

[0098] The second male element 322 extends in the first intermediate transverse plane indicated by the line BB.

[0099] The second male element 322 has the same characteristics as the first male element (inclined face, vertical face).

[0100] The first shell 3 also includes a second female element 324 suitable for cooperating 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.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] The locking elements 330, 331, 332 are part of the first locking system mentioned previously, one of whose functions is to lock the first cheek in relation to the shaft 2.

[0105] 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.

[0106] The first shell 3 also includes at least one second locking element designed to engage with the second cheek 6. The second locking elements are not visible in figures 3 to 5, but are visible in the figure but there are three of them, and are referenced 340, 341, 342.

[0107] The second blocking elements 340, 341, 342 are part of the second blocking system mentioned previously, one function of which is to block the second cheek 6 in relation to the shaft 2.

[0108] 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 Figure 11).

[0109] Second hull 4

[0110] With reference to figures 6 to 8, the second hull 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.

[0111] The second angular sector is complementary to the first angular sector of the first shell 3.

[0112] 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. 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.

[0113] The first lateral edge 403 extends in a first extremal transverse plane perpendicular to the X4 axis. The second lateral edge 404 extends in a second extremal transverse plane perpendicular to the X4 axis and different from the first extremal transverse plane.

[0114] 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.

[0115] The internal surface 405 is connected to the external surface 406 by the longitudinal edges 401, 402, and lateral edges 403, 404.

[0116] In the illustrated embodiment, the external surface 406 is substantially cylindrical in revolution. The lateral edges 403, 404 are curved, C-shaped.

[0117] 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.

[0118] The second shell 4 includes 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.

[0119] 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.

[0120] 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 outer 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. 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 protrudes from the outer 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.

[0121] 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 in figure 3.

[0122] 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.

[0123] The inclined face facilitates the 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 acts as a stop to hold the first male element 412 interlocked with this female element 324.

[0124] The second shell 4 also includes a first female element 414 suitable for cooperating 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 Figure 6. This second intermediate transverse plane is different from the first intermediate transverse plane indicated by the line BB in Figure 6.

[0125] 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.

[0126] The second shell 4 includes a second tongue 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).

[0127] The second tab 420 is elastic. The second tab 420 has a rest position in which it extends tangentially along the second longitudinal edge. 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 is no longer subjected to load, it naturally returns, by elastic recoil, to its rest position.

[0128] The second shell 4 includes a second male element 422 designed 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.

[0129] The second male element 422 extends in the first intermediate transverse plane indicated by the line BB.

[0130] The second male element 422 has the same characteristics as the first male element (inclined face, vertical face).

[0131] The second shell 4 also includes a second female element 424 suitable for cooperating with the first male element 312 of the first shell 3. The second female element 424 extends in the second intermediate transverse plane indicated by the line C-C.

[0132] 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.

[0133] 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 position, in the shape of a barrel 2.

[0134] 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 figure 12.

[0135] The first locking elements 440, 441, 442 are part of the first locking system mentioned previously, and thus one function is to lock the first cheek 5 relative to the barrel 2. 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.

[0136] 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.

[0137] The blocking elements 430, 431, 432 are part of the second blocking system mentioned previously, one of whose functions is to block the second cheek 6 from the barrel 2.

[0138] 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.

[0139] In the illustrated embodiment, the second shell 4 has an identical shape to that of the first shell 3.

[0140] First cheek 5

[0141] The first cheek 5 comprises a 501 disc extending around a longitudinal axis X5.

[0142] 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.

[0143] The first cheek 5 also 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.

[0144] The first cheek 5 also includes 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.

[0145] 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.

[0146] More specifically, there are 6 locking elements, and they are respectively referenced 510, 511, 512, 520, 521, 522. Locking elements 510, 511, 512 are intended to cooperate with the first hull 3, and locking elements 520, 521, 522 are intended to cooperate with the second hull 4.

[0147] 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.

[0148] Second cheek 6

[0149] The second cheek 6 includes a 601 disk extending around a longitudinal axis X6.

[0150] 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.

[0151] The second cheek 6 also includes a rib 604 projecting from 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.

[0152] The second cheek 6 also includes 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.

[0153] 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.

[0154] More specifically, there are 6 blocking elements, and they are respectively referenced 610, 611, 612, 620, 621, 622. Blocking elements 610, 611, 612 are intended to cooperate with the first hull 3, and blocking elements 620, 621, 622 are intended to cooperate with the second hull 4.

[0155] 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.

[0156] In the illustrated embodiment, the second cheek 6 has an identical shape to that of the first cheek 5.

[0157] Joining and disjoining the shells 3, 4 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 are coincident with the central axis X of the barrel 2.

[0158] The first shell 3 and the second shell 4 are also 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 Figure 12).

[0159] 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, they are mutually positioned opposite each other in the transverse direction:

[0160] • the male element 312 and the female element 424,

[0161] • the female element 314 and the male element 422,

[0162] • the male element 322 and the female element 414,

[0163] • the female element 324 and the male element 412.

[0164] To move from the disjointed 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 move closer together and interlock elastically.

[0165] 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 doing so, the male element 312 engages in the opening formed by the female element 424.

[0166] The engagement of the three other pairs of male / female elements occurs concomitantly, and in the same way.

[0167] During the transition from the disjointed 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.

[0168] In this locked configuration:

[0169] • The male element 312 is received in the female element 424,

[0170] • The female element 314 received the male element 422,

[0171] • The male element 322 is received in the female element 414,

[0172] • the female element 324 received the male element 412.

[0173] 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.

[0174] Assembly of the first cheek 5 with the shaft 2

[0175] Each locking element 510, 511, 512, 520, 521, 522 of the first cheek 5 is designed 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.

[0176] 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 lock, this movement is transmitted to the barrel 2, which then rotates on itself, allowing a cable wound around the barrel 2 to be unwound.

[0177] 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:

[0178] • the locking element 510 engaged with the locking element 330 of the first hull 3,

[0179] • 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,

[0180] • the locking element 520 engaged with the locking element 440 of the second hull 4,

[0181] • the locking element 521 engaged with the locking element 441 of the second hull 4, and

[0182] • the locking element 522 in contact with the locking element 442 of the second hull 4.

[0183] When cheek 5 is in its position joined to the shaft 2, the axes X5, X3 and X4 are coincident.

[0184] Furthermore, the lateral edge 303 is arranged against the inner face 503 of the first cheek.

[0185] Furthermore, each locking element 510, 511, 512, 520, 521, 522 of the first cheek 5 is designed 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 first cheek 5 relative to the first shell 3 and the second shell 4 in the longitudinal direction (parallel to the X axis).

[0186] Each locking element 510, 511, 512, 520, 521, 522 is also capable of moving 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 and 4 only if this locking system is in its unlocked configuration.

[0187] 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 disjointed position simultaneously.

[0188] In this disjoint position, each of the blocking elements 510, 511, 512, 520, 521, 522 is aligned in the transverse direction with the corresponding complementary blocking element of the first shell 3 or the second shell 4. In this disjoint position, the blocking 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).

[0189] 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.

[0190] Mounting the second cheek 6 with the shaft 2

[0191] Each locking element 610, 611, 612, 620, 621, 622 of the second cheek 6 is designed 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.

[0192] 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.

[0193] The locking elements 610, 611, 612, 620, 621, 622 are designed to be 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:

[0194] • the locking element 610 engaged with the locking element 430 of the second hull 4,

[0195] • the locking element 611 engaged with the locking element 431 of the second hull 4,

[0196] • the locking element 612 engaged with the locking element 432 of the second hull 4,

[0197] • the locking element 620 engaged with the locking element 340 of the first hull 3,

[0198] • the locking element 621 engaged with the locking element 341 of the first hull 3, and

[0199] • The locking element 622 engages with the locking element 342 of the first shell 3. When the cheek 5 is in its position joined to the barrel 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.

[0200] Furthermore, each locking element 610, 611, 612, 620, 621, 622 of the second cheek 6 is designed 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).

[0201] Each locking element 610, 611, 612, 620, 621, 622 is also capable of moving 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 and 4 only if this locking system is in its unlocked configuration.

[0202] There is 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.

[0203] In this disjoint position, each of the blocking elements 610, 611, 612, 620, 621, 622 is aligned in the transverse direction with the corresponding complementary blocking element of the first shell 3 or the second shell 4. In this disjoint position, the blocking 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).

[0204] 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 to their joined position; the locking system thus locks automatically, as already described.

[0205] Assembly of reel 1 To form reel 1 from the first shell 3, the second 4, the first cheek 5 and the second cheek 6, we can proceed as follows.

[0206] The first shell 3 and the second shell 4 are placed in their disjoint position, and the first cheek is also placed in its disjoint position, as shown in Figure 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.

[0207] 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. We then obtain the reel 1 as represented in particular in figures 1, 2 and 9.

[0208] Releasing the reel 1

[0209] A procedure for dismantling the reel 1 includes the following steps.

[0210] It is assumed that in a preliminary step, the cable which was possibly wound around the drum 2 in the annular storage space provided between the cheeks 5 and 6 was removed from the reel 1.

[0211] 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 pulling the two shells 3 and 4 apart in the transverse direction. During this pulling motion, 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.

[0212] 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.

[0213] Another method for dismantling the reel 1, which is much more efficient and faster, includes the following steps.

[0214] 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, that is, parallel to the ground, but in practice there may be an angle between the central axis and the ground plane, typically 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.

[0215] 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 shaft 2 is facing the ground.

[0216] 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, which automatically unlocks the locking system. 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, 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 hulls are side by side, they will naturally move apart as they pivot relative to each other.

[0217] As can be seen from the preceding paragraph, the locking system transitions from the locked to the unlocked position under the effect of the shock wave caused by the collision between reel 1 and the ground, without requiring any further unlocking action on the reel. The only actions performed by the user on the reel consisted of grasping it and then dropping it onto the ground.

[0218] Preferably, the fall of reel 1 is carried out such that the kinetic energy of the reel is between 4 and 100 joules when reel 1 collides with the ground. The parameters used to determine this kinetic energy are the mass m of the reel and the velocity v reached by reel 1 when it collides with the ground, according to the formula E = Vi mv 2The speed v itself depends on the initial speed of the reel and its initial height m (that is, its distance from the ground). When the initial speed of the reel is zero (in other words, when the reel is simply dropped, and not thrown), the fall time and the speed v can be determined from the height h, by combining this height with the acceleration due to gravity g. The mass m of the reel 1 is preferably between 1 and 12 kg.

[0219] The height h from which the reel is dropped is preferably between 30 centimeters and 1 meter.

[0220] The table below lists examples of possible combinations of values ​​for the parameters m, h, and therefore for the kinetic energy E:

[0221] Other ways of implementing this

[0222] This disclosure is not limited to the embodiment shown in the figures.

[0223] In other embodiments, the following may be provided:

[0224] • the first shell 3 and the second shell 4 can extend over different, and not equal, respective angular sectors;

[0225] • 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;

[0226] • 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;

[0227] • 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;

[0228] • 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;

[0229] • 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;

[0230] • The male and female elements cooperating with each other can be reversed; thus, it is possible to ensure that each cheek 5, 6 has at least one male blocking element; Tl

[0231] • Rib 504 or 606 can be replaced by a disk with a reduced radius compared to disk 501 or 601.

Claims

DEMANDS 1. 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) being 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) with respect 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 locking element (610, 611, 612, 620, 621, 622) 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) with respect 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 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, • 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) from moving from the second assembled position to the second disassembled 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, • in which 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 further unlocking action on the reel (1).

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

3. Touret (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 rotation of the first cheek (5) relative to the shaft (2) around the axis (X), and / or • the second locking element (610, 611, 612, 620, 621, 622) being in the second mounted position blocks a translation of the second cheek (6) relative to the shaft (2) around the axis (X).

4. Touret (1) according to any one of the preceding claims, wherein: • the first blocking element (510, 511, 512, 520, 521, 522) extends between the first cheek (5) and the second cheek (6) when the first blocking 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 into which a male element of the first shell (3) or 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 blocking elements (510, 511, 512, 520, 521, 522) including at least one blocking element (510, 511, 512) engaged with the first hull (3) and at least one other blocking element (520, 521, 522) simultaneously engaged with the second hull (4), and / or • the second cheek (6) comprises a plurality of second blocking elements (610, 611, 612, 620, 621, 622) including at least one blocking element (610, 611, 612) engaged with the first hull (3) and at least one other blocking element (620, 621, 622) simultaneously engaged with the second hull (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) specific to: • 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 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), • 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) with respect 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) with respect 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 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, • 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, 611, 612, 620, 621, 622) from moving from the second assembled position to the second disassembled 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).

9. 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.

10. 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.

11. 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