Device provided with an adhesive-free sheathed covering

Abstract

The invention relates to a device (2) comprising two elements (4, 6) and a hinge (8), the hinge (8) connecting the two elements (4, 6) at an axis of rotation (A- A'), each element (4, 6) being provided with a bottom (10) and a side wall (12) surrounding the bottom (10), the bottom (10) and the side wall (12) together defining an inner housing (14), each element (4, 6) having an outer surface (15), the device (2) further comprising at least one covering (12A, 12B), the covering (12A, 12B) covering at least the outer surface (15) of one of the elements (4, 6) and being provided with at least one edge folded towards the inner housing (14) of the element (4, 6) and arranged in the inner housing (14), the device (2) further comprising at least one part forming a frame and arranged within one of the elements (4, 6), the part being configured to wedge the at least one edge of the covering (12A, 12B) against the side wall (12) of the element (4, 6).

Description

Description Title of the invention: Device with a glue-free sheathed coating

[0001] The invention relates to a device comprising two elements, a hinge, and at least one covering, the two elements being mounted to pivotally movably relative to each other about an axis of rotation, the hinge connecting the two elements at said axis of rotation. The device is typically, but not limited to, a jewelry box or a watch case. The invention also relates to a tool and a method for covering a device according to the invention. technical field

[0002] The invention relates to the field of devices equipped with a hinge and at least one coating. Previous Art

[0003] It is known from devices such as jewelry boxes (jewelry case type) or watch receiving boxes, comprising two elements mounted to pivot relative to each other around an axis of rotation, by means of a hinge.

[0004] US patent document 6,513,672 B1 describes, for example, such a jewelry box. The jewelry box has a base and a lid pivotally mounted on the base by means of a spring-loaded hinge. The jewelry box also includes a fabric insert within the box, held in place by the specific configuration of the base and lid. The jewelry box described in this patent document is thus covered with fabric without any glue, which allows for easy recycling of the various components. The fabric insert covers the inside of the base and lid, as well as the hinge, making the latter virtually invisible from the outside. However, due to the specific configuration of such a jewelry box as described in this patent document, it is not possible to cover the outside of the base and lid without glue.

[0005] There is therefore a need for a device (such as a jewelry box or watch box) comprising two elements and a hinge connecting the two elements by pivoting, allowing the outer surface of the two elements to be covered without any glue, and which offers easy recycling. Description of the invention

[0006] The present invention aims to resolve all or part of the drawbacks of the prior art mentioned above.

[0007] Thus, according to a first aspect, the invention relates to a device comprising two elements and a hinge, the two elements being mounted movable in pivoting relative to each other around an axis of rotation, the hinge connecting the two elements at the level of said axis of rotation, each element being provided with a base and a side wall surrounding the base, the base and the side wall together defining an inner housing, each element having an outer surface, the device further comprising at least one coating, the coating covering at least the outer surface of one of said elements and being provided with at least one edge folded towards the inner housing of said element and arranged in said inner housing.

[0008] According to the invention, the device further comprises at least one frame-forming piece disposed within one of the elements, said piece being configured to wedge said at least one edge of the coating against the side wall of said element.

[0009] The presence of such a frame-like component in one of the elements allows the coating to be held in place against the outer surface of that element, thus enabling the outer surface to be covered without glue. The fact that the device is free of any glue or metallic material also allows for easy recycling by simply disassembling its various components. Finally, such a device is completely demountable at the end of its life and uses a limited number of materials (in practice, two materials: the material of the elements and the coating material), which is also advantageous from a recycling and, more broadly, environmental perspective.

[0010] In one embodiment, the part is a frame with a rectangular shape that is neither rhombic nor square. Alternatively, the part can have any other convex shape at all points, such as, for example, a polygonal, elliptical, or even a freeform shape.

[0011] Preferably, the element further comprises a groove for receiving the frame piece, said groove being formed on an inner periphery of the side wall of the element. This provides a simple means of retaining the frame piece firmly within the element, without the use of any adhesive.

[0012] Preferably, the device further comprises at least one flexible covering, at least one second frame-forming piece, and at least one third frame-forming piece, the flexible covering being intended to cover a first face of the second piece within one of the elements and having at least one edge folded towards an opposite face of the second piece, the flexible covering forming an intermediate support wall within said element, the second and third pieces being arranged within said element, the second piece being configured to wedge, together with the third piece, said at least one edge of the flexible covering against the wall lateral of said element. This advantageously allows to suggest the presence of an intermediate support wall, which could for example be a support cushion, within the element (and this without the presence of a foam material in the device).

[0013] In one embodiment, the second and / or third piece is a frame with a non-rhombus or non-square rectangular shape. Alternatively, the second and / or third piece may have any other convex shape at all points, such as, for example, a polygon, an elliptical shape, or even a freeform shape.

[0014] Preferably, the element further comprises a groove for receiving the second frame piece, said groove being formed on an inner perimeter of the element's side wall. This provides a simple means of securing the second frame piece firmly within the element, without the use of any adhesive.

[0015] According to one embodiment, the device further comprises a third element forming a support platform, the third element being arranged in the internal housing of one of the other elements.

[0016] Preferably, the third element is provided with a cavity for receiving a watch coil. This allows such a watch coil to be housed and held within the device, the coil then being completely removable from the device. Preferably, the cavity is cylindrical.

[0017] In one embodiment, the device further comprises an additional covering and a fourth frame-like piece. The additional covering is designed to cover a first face of the third element and has at least one edge folded towards an opposite face of the third element. The fourth piece forms a support for the third element. This fourth piece is arranged within the third element and is configured to wedge at least one edge of the additional covering against a side wall of the third element. This allows the first face of the third element to be covered without glue.

[0018] According to one embodiment, the covering or each covering is made of leather.

[0019] Preferably, the hinge is a butt hinge with a male part integrated into one of the elements and a female part integrated into the other. Such a butt hinge can be advantageously and harmoniously integrated within the two moving elements of the device.

[0020] According to one embodiment, the two elements of the device are identical.

[0021] According to one embodiment, the device is a jewelry box or a watch receiving box, each of the two elements of the device being a box frame.

[0022] According to a second aspect, the invention relates to a sheathing tool for a device comprising two elements, at least one covering, and a hinge suitable for connecting the two elements by pivoting around an axis of rotation, each element being provided with a base and a side wall surrounding the base, the base and the side wall together defining an internal housing, each element having an external surface, the covering being provided with at least one edge, the device further comprising at least one frame piece, said piece being configured to wedge said at least one edge of the covering against the side wall of said element, the covering tool comprising a mold in four parts and at least one slide, each part of the mold being intended to receive each of said elements as well as the covering, said at least one slide being mounted sliding on the mold between a locking position in the position of the covering on the element and a position for releasing the covering.

[0023] According to a third aspect, the invention relates to a method of sheathing a device comprising two elements, at least one covering, and a hinge suitable for connecting the two elements by pivoting around an axis of rotation, each element being provided with a base and a side wall surrounding the base, the base and the side wall together defining an internal housing, each element having an external surface, the covering being provided with at least one edge, the device further comprising at least one frame piece, said piece being configured to wedge said at least one edge of the covering against the side wall of said element.

[0024] According to one embodiment, the process is implemented by a sheathing tool as described above and comprises the steps of: i. supplying said device and the sheathing tool, said at least one coating of the device being separated from the two elements, said at least one slide being initially in its coating release position; ii. placing said coating at the bottom of each part of the mold; iii. placing one of said elements on the coating, in the bottom of each part of the mold; iv. folding said at least one edge of the coating towards the inner housing of said element, so that it extends into said inner housing; v. sliding said at least one slide, from its coating release position to its locking position in the coating position on the element; vi. insertion of the frame piece within said element, so as to wedge said at least one edge of the coating against the side wall of said element; vii. sliding movement of said at least one slider, from its locking position in the position of the coating on the element to its position of release of the coating; viii. detachment, with respect to the device, of the sheathing tool comprising the mold and said at least one slider.

[0025] Preferably, the hinge of the device is a butt hinge having a male part integrated into one of said elements, and a female part integrated into the other element, the sheathing tool further comprises at least one sheathing slide for the male or female part of the butt hinge, said at least one sheathing slide being mounted to slide on the mold between a locking position in the position of the coating on said male or female part of the butt hinge and a coating release position, said at least one sheathing slide having a receiving recess for the male or female part of the butt hinge and being initially in its coating release position, and the method further comprises the steps of: i.ii. sliding movement of said at least one sheathing slider, from its position of release of the covering to its position of locking in the position of the covering on the male or female part of the hinge; ii. sliding movement of said at least one sheathing slider, from its position of locking in the position of the covering on the male or female part of the hinge to its position of release of the covering. Figures

[0026] [Fig 1] is an axonometric view of a device according to an embodiment of the invention, the device comprising two movable elements mounted to pivot via a hinge, the device being in closed configuration.

[0027] [Fig 2] is a top view of the device in Figure 1.

[0028] [Fig 3] is an axonometric view of the device in Figure 1, with the device in the open configuration.

[0029] [Fig 4] is a view similar to that of figure 3, with some elements of figure 3 having been omitted.

[0030] [Fig 5] is an exploded axonometric view of the device in Figure 3.

[0031] [Fig 6] is a longitudinal sectional view of the device in Figure 2, taken along section plane VI-VI.

[0032] [Fig 7] is an axonometric view of a sheathing tool for the device in Figure 1.

[0033] [Fig 8] is a longitudinal sectional view of the sheathing tool of Figure 7, taken along section plane VIII-VIII, and illustrating the first steps of a sheathing process for the device of Figure 1.

[0034] [Fig 9] is a partial longitudinal sectional view of the sheathing tool of Figure 7, taken along the section plane IX-IX, and illustrating subsequent steps in the sheathing process of the device of Figure 1.

[0035] [Fig 10] is a view similar to that of figure 3, in which the upper element of the device has been omitted and illustrating an application in which a watch coil has been placed within the lower element of the device. Definitions

[0036] According to the invention, "slider" means any movable guide piece that follows a line (whether that line is a straight axis or any curve). According to the invention, "casing" means any element forming part of the rigid shell constituting a jewelry box or a watch case; such an element may, for example, be made of an injected polymer material, typically a thermoplastic material, or of a reinforced cardboard material or a wood panel incorporating wood fibers within a resin.

[0037] The terms "horizontal", "vertical", "lower", "upper", "top", "bottom", and "side" are defined with respect to the orientation of the device according to the invention. In particular, in this application, the term "vertical" designates an orientation perpendicular to the horizon, while the term "horizontal" designates an orientation parallel to the horizon. Detailed description of the invention

[0038] Figures 1 to 6 show a device 2 according to an embodiment of the invention. The device 2 comprises three elements 4, 6, 7 and a hinge 8 connecting two of the first elements 4, 6 at a rotation axis A-A'. The rotation axis AA is a horizontal axis when the device 2 is placed on a flat horizontal surface. The first two elements 4, 6 are mounted to pivot relative to each other about the pivot axis A-A'. The device 2 thus has an open configuration (shown in Figures 3 and 4), in which the first two elements 4, 6 are separated from each other, and a closed configuration (shown in Figures 1, 2, and 6), in which the first two elements 4, 6 are in contact with each other.

[0039] Device 2 is, for example, a jewelry box or a watch reception box (not shown in the figures), each of the first two elements 4, 6 being a frame of box 2. Box 2 then comprises a lower frame 4 and an upper frame 6, the frame The upper part 6 forms a lid for the case 2, while the lower part 4 forms a base for resting against a flat surface, such as a table or piece of furniture. When the device 2 is a watch case, the lower part 4, forming a base, is configured, for example, to house a watch winder 9, as illustrated in Figure 10. For this purpose, a support plate 7 for the winder 9 is inserted into the lower part 4, as will be described later. This support plate 7 forms the third element described previously. In the particular embodiment shown in Figures 1 to 6, each part 4, 6 is preferably made of an injection-molded polymer material, typically a thermoplastic.

[0040] Each element 4, 6 is provided with a base 10 and a side wall 12 surrounding the base 10. Preferably, and as illustrated in Figures 3 and 4, each side wall 12 forms a continuous surface delimiting the base 10 and defining with it an internal recess 14. Each element 4, 6 also has an external surface 15, such an external surface 15 being visible in Figures 1 to 6. The third element 7 is inserted into the internal recess 14 defined by one of the other elements 4, 6, in this case into the internal recess 14 defined by the lower element 4 in the particular embodiment shown in Figures 1 to 6. The base 10 of the upper element 6 is provided with a flat 10A which serves as a support surface for (possible) hot stamping.

[0041] As shown in Figure 5, the device 2 also includes two coverings 12A, 12B, and two first parts 14A, 14B, each forming a frame. Preferably, the device also includes two flexible coverings 16A, 16B, an additional covering 17, two second parts 18A, 18B, each forming a frame, two third parts 20A, 20B, each forming a frame, and a fourth part 22 forming a frame.

[0042] Preferably, each covering 12A, 12B, 16A, 16B, 17 is made of leather. Even more preferably, and as illustrated in Figures 1 to 6, each of the first parts 14A, 14B, the second parts 18A, 18B, the third parts 20A, 20B, and the fourth part 22 is a frame of non-rhombus or non-square rectangular shape. Similarly, each covering 12A, 12B, 16A, 16B, 17 is preferably of non-rhombus or non-square rectangular shape. As an alternative not shown, each of the first parts 14A, 14B, the second parts 18A, 18B, the third parts 20A, 20B, and the fourth part 22 can have any other convex shape at all points, such as, for example, a polygonal, elliptical, or even a freeform shape.

[0043] As illustrated in Figures 5 and 6, each of the two coatings 12A, 12B covers the outer surface 15 of a respective element 4, 6, and is provided with four edges 24 (corresponding to each of the lateral sides of the coating 12A, 12B when the latter is square). As shown in Figure 6, each of the edges 24 of the covering 12A, 12B is folded towards the inner housing 14 defined by the element 4, 6 which is covered by the covering 12A, 12B in question, and is arranged in this inner housing 14.

[0044] Each of the first two parts 14A, 14B is arranged within a respective element 4, 6. To this end, and as shown in Figures 4 and 6, each element 4, 6 is provided with a groove 26A, 26B for receiving one of the first parts 14A, 14B. Each of the grooves 26A, 26B is formed on an inner periphery of the side wall 12 of the corresponding element 4, 6. As illustrated in Figure 6, each of the first two parts 14A, 14B is configured to clamp each of the edges 24 of one of the coverings 12A, 12B against the side wall 12 of the element 4, 6 in which the first part 14A, 14B is arranged.More specifically, and as can be seen in particular in Figure 6, each edge 24 of one of the coverings 14A, 14B, once folded back towards the inner housing 14 defined by the corresponding element 4, 6, is pressed against an inner face 28 of the side wall 12 of this element 4, 6, and is then blocked against this side wall 12 by wedging, via the positioning and adjustment of one of the first pieces 14A, 14B in its receiving groove 26A, 26B.

[0045] As illustrated in Figures 5 and 6, each of the two flexible coverings 16A, 16B covers a first face of one of the second parts 18A, 18B within one of the elements 4, 6, and is provided with four edges 32 (corresponding to each of the lateral sides of the flexible covering 16A, 16B when the latter is square). Each of the edges 32 of the flexible covering 16A, 16B is folded towards a face opposite the first face of the corresponding second part 18A, 18B. Each of the two flexible coverings 16A, 16B forms an intermediate support wall within the element 4, 6 in which it is arranged.

[0046] Each of the second parts 18A, 18B and the third parts 20A, 20B is arranged within a respective element 4, 6. To this end, and as illustrated in Figures 4 and 6, each element 4, 6 is provided with a groove 36A, 36B for receiving one of the second parts 18A, 18B. Each of the grooves 36A, 36B is formed on an inner periphery of the side wall 12 of the corresponding element 4, 6. Furthermore, each third part 20A, 20B is supported by one of the first parts 14A, 14B and is held laterally by one of the second parts 18A, 18B.

[0047] As illustrated in Figure 6, each of the second parts 18A, 18B is configured to clamp, together with one of the third parts 20A, 20B, each of the edges 32 of one of the flexible coverings 16A, 16B against the side wall 12 of the element 4, 6 in which this flexible covering 16A, 16B is disposed. More precisely, and as can be seen in particular on the Figures 5 and 6, each edge 32 of one of the flexible coverings 16A, 16B, once folded back towards the opposite face of the second corresponding piece 18A, 18B, is pressed against an internal face 28 of the side wall 12 of the element 4, 6, and is then blocked against this side wall 12 by wedging, via the positioning and adjustment of one of the third pieces 20A, 20B.

[0048] As illustrated in Figures 5 and 6, the additional covering 17 covers one face of the third element 7 and has four edges 40 (corresponding to each of the lateral sides of the additional covering 17 when the latter is square). Each edge 40 of the additional covering 17 is folded towards a face opposite the first face of the third element 7. The third element 7 (or support plate) rests on one of the flexible coverings 16A forming an intermediate support wall within the lower element 4. When the device 2 is a watch winder box (as in the illustrative embodiment shown in Figures 3, 5, and 6), the third element 7 has a cavity 44 for receiving a watch winder. The cavity 44 is typically cylindrical. The additional covering 17 has a circular opening for the passage of the cylindrical cavity 44.

[0049] The fourth part 22 forms a support for the third element 7 and is positioned within one of the other elements 4, 6 (in this case, the lower element 4 in the particular embodiment shown in Figures 1 to 6). More precisely, the fourth part 22 is positioned inside an internal cavity 46 defined by the third element 7. To achieve this, and as can be seen in Figure 6, the third element 7 is provided with a groove 48 for receiving the fourth part 22. The groove 48 is formed on an inner periphery of the side wall of the third element 7. The fourth part 22 is configured to clamp each edge 40 of the additional covering 17 against the inner side wall of the third element 7, inside the internal cavity 46.More specifically, and as can be seen in particular in figures 5 and 6, each edge 40 of the additional coating 17, once folded back towards the opposite face of the third element 7, is pressed against an internal face 50 of the side wall of the third element 7, and then is blocked against this side wall by wedging, via the positioning and adjustment of the fourth piece 22 in its receiving groove 48.

[0050] Preferably, the hinge 8 is a butt hinge with a male part 52 and a female part 54. As illustrated in figures 1, 3 and 4, the male part 52 is integrated into the lower element 4, and the female part 54 is integrated into the upper element 6. To achieve this, the male part 52 of the butt hinge 8 is, for example, provided with two lateral lugs 55 (visible in figures 8 and 10) which each fit into the female part 54 of the hinge 8.

[0051] A tool 56 and a method for sheathing the device 2 according to an embodiment of the invention will now be described with reference to figures 7 to 9.

[0052] The sheathing tool 56 comprises a mold 58 in four parts 60A, 60B, 60C, 60D, the four parts 60A, 60B, 60C, 60D being joined together by vertical pins 61. Each part 60A, 60B, 60C, 60D of the mold 58 forms a sector of the latter, representing one quarter of the mold 58. Each part 60A, 60B, 60C, 60D of the mold 58 comprises a lower portion 63A and an upper portion 63B, the lower portion 63A and the upper portion 63B being formed in one piece and being separated by a cavity 63C. Each lower portion 63A of a part 60A, 60B, 60C, 60D of the mold 58 is intended to receive a part of the lower element 4 of the device 2 and a part of the first coating 12A. Each upper portion 63B of a part 60A, 60B, 60C, 60D of the mold 58 is intended to receive a part of the upper element 6 of the device 2 and a part of the second coating 12B.The mold 58 is designed to be modular and demountable to facilitate demolding of the assembly. The coating tool 56 further includes four corner slides 62 and four lateral slides 64. Each corner slide 62 and each lateral slide 64 is removably mounted on the mold 58, in one of the cavities 63C, and is slidably mounted on the mold 58 between a first position (illustrated in Figure 9) corresponding to a locking in position of one of the coatings 12A, 12B on the corresponding element 4, 6; and a second position (illustrated in Figure 8) corresponding to a release of the coating 12A, 12B.

[0053] Each of the corner slides 62 and the lateral slides 64 has the function, when in its first position, of holding in place one of the coverings 12A, 12B on the thickness of the edge of the corresponding element 4, 6, by exerting a vertical holding force on it, and thus preventing the displacement of the covering 12A, 12B and / or the formation of folds on the latter prior to the jamming of the edges 24 of the covering 12A, 12B by one of the first pieces 14 A, 14B.

[0054] One of the lateral slides 64 has a recess forming a housing for the male part 52 of the hinge 8. This configuration allows the male part 52 of the hinge 8 to be sheathed without glue. Another lateral slide 64 typically has an added piece defining a complementary notch in the shape of the female part 54 of the hinge 8. This configuration also allows the female part 54 of the hinge 8 to be sheathed without glue.

[0055] The sheathing process of device 2 according to an embodiment of the invention, implemented by the sheathing tool 56, will now be described.

[0056] Initially, coatings 12A, 12B are separated from elements 4, 6, 7 of the device 2. Each slide 62, 64 of the sheathing tool 56 is in its position for releasing the coating 12A, 12B.

[0057] In a first step, each coating 12A, 12B is placed at the bottom of its corresponding part 60A, 60B, 60C, 60D of the mold 58, as illustrated, for example, in Figure 8. In this Figure 8, only the lower portion 63A of two parts 60A, 60C of the mold 58 and only the lower element 4 of the device 2 are shown, for clarity. The operations performed on the upper portions 63B of parts 60A, 60B, 60C, 60D of the mold 58 and on the upper element 6 of the device 2 are identical to those described with reference to Figures 8 and 9.

[0058] In a subsequent step 70, also shown in Figure 8, each of the elements 4, 6 is placed on one of the corresponding coatings 12A, 12B, in the bottom of each of the parts 60A, 60B, 60C, 60D of the mold 58.

[0059] In a subsequent step 72, and as illustrated in Figure 8, each edge 24 of each of the coverings 12A, 12B is folded back towards the inner housing 14 of the corresponding element 4, 6, so that the edge 24 extends into this inner housing 14.

[0060] In a subsequent step 74 illustrated in Figure 9, each slide 62, 64 is moved by sliding within one of the cavities 63C, from its position of release from the liner 12A, 12B, to its locking position in the position of the liner 12A, 12B on the corresponding element 4, 6. In particular, during a substep of this step, one of the lateral slides 64 is moved by sliding from its position of release from the liner 12A, 12B, to its locking position in the position of the liner 12A, 12B on the male part 52 of the hinge 8. In addition, another lateral slide 64 is moved by sliding from its position of release from the liner 12A, 12B, to its locking position in the position of the liner 12A, 12B on the female part 54 of the hinge 8.

[0061] In a subsequent step 76 also shown in Figure 9, each first frame piece 14A, 14B is inserted into a corresponding element 4, 6, so as to wedge each edge 24 of the coating 12A, 12B against the side wall 12 of the element 4, 6 in question.

[0062] In a subsequent step 78, each slide 62, 64 is moved by sliding from its locking position in the position of the cladding 12A, 12B on the corresponding element 4, 6, to its cladding release position 12A, 12B. In particular, during a substep of this step, one of the lateral slides 64 is moved by sliding from its locking position in the position of the cladding 12A, 12B on the male part 52 of the hinge 8, to its cladding release position 12A, 12B. In addition, another lateral slide 64 is moved by sliding from its locking position in the position of the cladding 12A, 12B on the female part 54 of the hinge 8, towards its position of release of the coating 12A, 12B.

[0063] In a final step, the sheathing tool 56 (comprising the mold 58 and the slides 62, 64) is separated from the device 2. The device 2 is then advantageously sheathed without glue. The fact that the mold 58 is removable makes it easy to separate the various parts 60A, 60B, 60C, 60D of the mold 58 (in practice, at least one is separated by removing its corresponding pins 61), in order to loosen the sheathing tool 56 and release the sheathed device 2.

[0064] It should be noted that, although not described in detail, the sheathing of the flexible coverings 16A, 16B and the additional covering 17 is carried out in a manner similar to that of the coverings 12A, 12B, using in particular the slides 62, 64 as well as the second pieces 18A, 18B, the third pieces 20A, 20B and the fourth piece 22.

Claims

Demands

1. A device (2) comprising two elements (4, 6) and a hinge (8), the two elements (4, 6) being mounted to pivotally movably relative to each other about an axis of rotation (A-A'), the hinge (8) connecting the two elements (4, 6) at said axis of rotation (AA), each element (4, 6) having a base (10) and a side wall (12) surrounding the base (10), the base (10) and the side wall (12) together defining an inner housing (14), each element (4, 6) having an outer surface (15), the device (2) further comprising at least one covering (12A, 12B), the covering (12A, 12B) covering at least the outer surface (15) of one of said elements (4, 6) and having at least one edge (24) folded back towards the inner housing (14) of said element (4, 6) and arranged in said interior dwelling (14), characterized in that the device (2) further comprises at least one frame-forming piece (14A,14B) and disposed within one of the elements (4, 6), said part being configured to wedge said at least one edge (24) of the coating (12A, 12B) against the side wall (12) of said element (4, 6).

2. Device (2) according to claim 1, wherein the part (14A, 14B) is a frame of non-rhombus or square rectangular shape.

3. Device (2) according to claim 1 or 2, wherein said element (4, 6) further comprises a groove (26A, 26B) for receiving the frame-forming part (14A, 14B), said groove (26A, 26B) being provided on an inner perimeter of the side wall (12) of said element (4, 6).

4. Device (2) according to any one of claims 1 to 3, wherein the device (2) further comprises at least one flexible covering (16A, 16B), at least one second frame-forming piece (18A, 18B) and at least one third frame-forming piece (20A, 20B), the flexible covering (16A, 16B) being intended to cover a first face of the second piece (18A, 18B) within one of the elements (4, 6) and being provided with at least one edge (32) folded towards an opposite face of the second piece (18A, 18B), the flexible covering (16A, 16B) forming an intermediate support wall within said element (4, 6), the second piece (18A, 18B) and the third piece (20A, 20B) being arranged within said element (4, 6), the second piece (18A, 18B) being configured to wedge, together with the third piece (20A, 20B), said at least one edge (32) of the flexible covering (16A, 16B) against the side wall (12) of said element (4, 6).

5. Device (2) according to claim 4, wherein the second part (18A, 18B) and / or the third part (20A, 20B) is a frame of non-rhombus or square rectangular shape.

6. Device (2) according to claim 4 or 5, wherein said element (4, 6) further comprises a groove (36A, 36B) for receiving the second frame piece (18A, 18B), said groove (36A, 36B) being provided on an inner perimeter of the side wall (12) of said element (4, 6).

7. Device (2) according to any one of the preceding claims, wherein the device (2) further comprises a third element (7) forming a support platform, the third element (7) being arranged in the internal housing (14) of one of the other elements (4, 6).

8. Device (2) according to the preceding claim, wherein the third element (7) is provided with a cavity (44) for receiving a watch coil (9).

9. Device (2) according to claim 7 or 8, wherein the device (2) further comprises an additional coating (17) and a fourth frame piece (22), the additional coating (17) being intended to cover a first face of the third element (7) and being provided with at least one edge (40) folded towards an opposite face of the third element (7), the fourth piece (22) forming a support for the third element (7), the fourth piece (22) being disposed within said other element (4, 6) and being configured to wedge said at least one edge (40) of the additional coating (17) against a side wall of the third element (7).

10. Device (2) according to any one of the preceding claims, wherein the coating or each coating (12A, 12B, 16A, 16B, 17) is made of leather.

11. Device (2) according to any one of the preceding claims, wherein the hinge (8) is a hinged hinge having a male part (52) integrated into one of said elements (4, 6), and a female part (54) integrated into the other element (4, 6).

12. Device (2) according to any one of the preceding claims, wherein the device (2) is a jewelry box or a watch receiving box, each of the two elements (4, 6) of the device (2) being a box casing.

13. A tool (56) for sheathing a device (2) comprising two elements (4, 6), at least one covering (12A, 12B), and a hinge (8) capable of connecting the two elements (4, 6) by pivoting about an axis of rotation (A-A'), each element (4, 6) having a base (10) and a side wall (12) surrounding the base (10), the base (10) and the side wall (12) together defining an internal housing (14), each element (4, 6) having an external surface (15), the covering (12A, 12B) having at least one edge (24), the device (2) further comprising at least one frame piece (14A, 14B), said piece being configured to wedge said at least one edge (24) of the covering (12A, 12B) against the side wall (12) of said element (4, 6), the sheathing tool (56) comprising a mold (58) in four parts (60A, 60B, 60C, 60D) and at least one slide (62, 64), each part (60A, 60B, 60C,60D) of the mold (58) being intended to receive each of said elements (4, 6) as well as the coating (12A, 12B), said at least one slide (62, 64) being mounted to slide on the mold (58) between a locking position of the coating (12A, 12B) on the element (4, 6) and a coating release position (12A, 12B).

14. A method for sheathing a device (2) comprising two elements (4, 6), at least one covering (12A, 12B), and a hinge (8) adapted to connect the two elements (4, 6) by pivoting about an axis of rotation (A-A), each element (4, 6) having a base (10) and a side wall (12) surrounding the base (10), the base (10) and the side wall (12) together defining an internal housing (14), each element (4, 6) having an external surface (15), the covering (12A, 12B) having at least one edge (24), the device (2) further comprising at least one frame piece (14A, 14B), said piece being configured to wedge said at least one edge (24) of the covering (12A, 12B) against the side wall (12) of said element (4, 6), the method being implemented by a sheathing tool (56) according to claim 13 and comprising the steps of: i.supplying said device (2) and the sheathing tool (56), said at least one liner (12A, 12B) of the device (2) being separated from the two elements (4, 6), said at least one slide (62, 64) being initially in its position for releasing the liner (12A, 12B); ii. placing said liner (12A, 12B) at the bottom of each part (60A, 60B, 60C, 60D) of the mold (58); iii. placement of one of said elements (4, 6) on the coating (12A, 12B), in the bottom of each part (60A, 60B, 60C, 60D) of the mold (58); iv. folding down said at least one edge (24) of the coating (12A, 12B) towards the inner housing (14) of said element (4, 6), so that it extends into said inner housing (14); v. sliding movement of said at least one slide (62, 64), from its position of release of the coating (12A, 12B) to its locking position in the position of the coating (12A, 12B) on the element (4, 6); vi. insertion of the frame-forming piece (14A, 14B) within said element (4, 6), so as to wedge said at least one edge (24) of the covering (12A, 12B) against the side wall (12) of said element (4, 6); vii. sliding movement of said at least one slider (62, 64), from its locking position in the position of the covering (12A, 12B) on the element (4, 6) to its position of release of the covering (12A, 12B); viii.decoupling, vis-à-vis the device (2), of the sheathing tool (56) comprising the mold (58) and said at least one slide (62, 64).

15. A sheathing method according to the preceding claim, wherein the hinge (8) of the device (2) is a sheathing hinge having a male portion (52) integrated into one of said elements (4, 6), and a female portion (54) integrated into the other element (4, 6), wherein the sheathing tool (56) further comprises at least one sheathing slide (64) for the male portion (52) or the female portion (54) of the sheathing hinge (8), said at least one sheathing slide (64) being slidably mounted on the mold (58) between a locking position in the coating position (12A, 12B) on said male portion (52) or female portion (54) of the sheathing hinge (8) and a coating release position (12A, 12B), said at least one sheathing slide (64) being having a housing for receiving the male portion (52) or female portion (54). (54) of the hinge pin (8) and being initially in its coating release position (12A, 12B),and wherein the method further comprises the steps of: i. sliding displacement of said at least one sheathing slider (4), from its position of, release of the coating (12A, 12B) to its locking position in the coating position (12A, 12B) on the male part (52) or female part (54) of the hinge (8); ii. sliding movement of said at least one sheath slider (64), from its locking position in the coating position (12A, 12B) on the male part (52) or female part (54) of the hinge (8) to its coating release position (12A, 12B).

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