Portable items including those without a central component that secures the corners and those with a detachable wrist strap.

Abstract

The present invention relates to a portable article (1) comprising: a shell (20) having a central member (21) without fastening corners and including two longitudinal cavities (110) extending in a longitudinal direction (X-X); a wristband (30) including two ends (31), each end (31) of the wristband (30) cooperating with a mounting interface (200) configured to detachably cooperate with the longitudinal cavity (110) of the central member (21) to allow mounting of the wristband (30), characterized in that the mounting interface (200) is a one-piece and includes: an element (210) for receiving and securing one end (31) of the wristband (30); an elastic sleeve element (220) for axially locking the mounting interface (200) in the longitudinal cavity (110) in the longitudinal direction (X-X); and an element (230) for locking the mounting interface (200) in the longitudinal cavity (110) in a direction transverse to the longitudinal direction (X-X).

Description

Technical Field

[0001] This invention relates to a portable article comprising a shell and a wristband attached to the shell for wearing on a user's wrist. More specifically, the invention relates to a detachable attachment device for detachably attaching the wristband to the shell of the portable article, thereby facilitating the installation and removal of the wristband.

[0002] The present invention relates more particularly to a watch comprising a case without corners and a wrist strap connected to the case via a detachable attachment device. Background Technology

[0003] The attachment devices that secure the wristband to the watch case are often quite complex, due to the number of different parts required for their assembly, the complexity of these parts, and the difficulty in their manufacture.

[0004] In particular, the ends of each link of the bracelet and the watch case must be specially shaped and machined before they can be assembled. In addition, the assembly of these various components is quite lengthy and therefore expensive.

[0005] Common attachment devices are based on the presence of: two corner pieces or other protruding elements arranged on the edge of the central part of the watch case; and a transverse bar inserted into the end of the wristband link, each end of which is inserted into an opening arranged in each corner piece.

[0006] This type of attachment of the wristband to the watch case requires special tools to achieve interchangeability. Therefore, if a user wants to change their wristband due to wear and tear or aesthetic reasons, they usually have to seek professional help for this replacement. This process is time-consuming and incurs a certain cost.

[0007] From an industrial perspective, protruding corners or other elements on the edges of the central component hinder the automation of many operations during case manufacturing or even during finishing. Consequently, some operations need to be performed manually to avoid damaging the corners or other protruding elements.

[0008] It is known that attachment devices facilitate the interchangeability of wristbands. However, these attachment devices are generally complex to manufacture and require the use of many inserts or connecting parts between the wristband links, mounting interfaces, and the watch case to ensure the wristband is locked relative to the mounting interface and the mounting interface is locked to the case, for example by springs, leaflets, etc.

[0009] Furthermore, attachment devices that provide simplified interchangeability of wristbands require significant modifications to the watch case and / or wristband, and there are no methods that facilitate the manufacture of these components as much as possible, which incurs additional costs during manufacturing.

[0010] Therefore, there is a need to improve the means for detachably attaching a wristband to a watch case, and more generally to attach a wristband to a portable item, in order to overcome at least one of the limitations known and described above. Summary of the Invention

[0011] In this context, the object of the present invention is to provide a portable article comprising a simple and relatively inexpensive attachment device that requires only a single one-piece component to ensure the retention of the wrist strap and the connection and locking of the wrist strap to the case. Thus, the present invention provides a “one-piece” solution that is easily mass-produced through conventional manufacturing methods.

[0012] Another object of the present invention is to provide an attachment device that allows the wristband to be easily attached to and removed from the housing via an embossed sleeve. This allows users to easily replace their wristbands when they wear out, or to modify the aesthetics without requiring professional assistance.

[0013] Another object of the present invention is to provide an attachment device that allows for easy manufacturing of parts, enabling the wristband and case to be fully automated in a conventional manner, and eliminating the need for manual maintenance of the attachment device.

[0014] The attachment device according to the invention allows for the development of a shell in which the central member is free of corners and protruding elements for attaching a wristband, resulting in a symmetrical shell that is easily automated during production. Thus, the proposed solution offers economic advantages over prior art solutions that are more complex to manufacture and require more operation.

[0015] Therefore, the present invention relates to a portable article comprising: a shell having a central member without fastening corners and including two longitudinal cavities extending in a longitudinal direction XX; a wristband including two ends, each end of the wristband cooperating with a mounting interface configured to detachably cooperate with the longitudinal cavities of the central member to allow the wristband to be mounted, characterized in that the mounting interface is one-piece and includes:

[0016] - A component for receiving and securing one end of the wristband;

[0017] - An elastic sleeve element for axially locking the mounting interface in the longitudinal cavity in the longitudinal direction XX;

[0018] - A component used to lock the mounting interface in the longitudinal cavity according to the direction transverse to the longitudinal direction XX.

[0019] Advantageously, the mounting interface is for attachment parts, unlike wristbands.

[0020] In addition to the features mentioned in the preceding paragraphs, the portable article according to the invention may have one or more additional features, either individually or in combination of all technically possible features:

[0021] - The mounting interface is configured to cooperate by sliding into the longitudinal cavity of the center member;

[0022] - The element for receiving and securing one end of the wristband is formed by two support plates spaced apart from each other, so that the end of the wristband can be positioned between the two support plates;

[0023] - The support plate has openings for the components used to secure the wristband to pass through;

[0024] - The ends of the wristband are sewn, welded, or overmolded onto the support plate;

[0025] - An element for receiving and securing one end of the wristband is formed by a groove for receiving the end of the wristband and teeth or protrusions configured to insert into and pass through the material of the wristband in order to ensure its locking;

[0026] - Teeth or protrusions are arranged in the groove;

[0027] - The teeth have different profiles and / or different orientations; advantageously, the orientations of the teeth are different from each other;

[0028] - In the free position, the groove has an opening that is thicker than the end of the wristband;

[0029] - In the free position, the external dimension of the mounting interface near the slot is larger than the internal dimension of the longitudinal cavity, and the mounting interface is configured to elastically compress to reduce the opening of the slot during its insertion into the longitudinal cavity;

[0030] - The elastic sleeve element is formed by at least one elastic clip that cooperates with at least one housing arranged in the longitudinal cavity;

[0031] - The flexible sleeve element is formed by two flexible clips located at the longitudinal end of the mounting interface, and the two flexible clips are configured to cooperate with two end housings arranged in the longitudinal cavity;

[0032] - The elastic sleeve element is formed by a central elastic clip configured to cooperate with a central housing arranged in the longitudinal cavity;

[0033] - The resilient sleeve element is configured to be reversible, and allows the axial position of the mounting interface to be unlocked without damaging one of the elements constituting the mounting interface;

[0034] - The element for locking the mounting interface in the longitudinal cavity in a direction transverse to the longitudinal direction XX is formed by a support surface that cooperates with the undercut portion or complementary stop surface of the longitudinal cavity;

[0035] - The mounting interface is made of polymer or metal materials;

[0036] - The central component of the shell is made of thermoplastic plastic, preferably polyamide 11;

[0037] - The longitudinal cavity is open, allowing the mounting interface to be inserted through the first or second end of the cavity without discrimination;

[0038] - The longitudinal cavity extends over two circular sections of the central piece located at 6 o'clock and 12 o'clock;

[0039] Advantageously, a portable item is a watch. Attached Figure Description

[0040] The objects, advantages, and features of the present invention will become apparent from the following detailed description and in conjunction with the accompanying drawings:

[0041] - Figure 1 A perspective view showing a first embodiment of a portable article according to the present invention;

[0042] - Figure 2 Show Figure 1 An exploded view of the first embodiment of the portable article described herein;

[0043] - Figure 3 A perspective view showing a second embodiment of a portable article according to the present invention;

[0044] - Figure 4 Show Figure 3 An exploded view of the second embodiment of the portable article described herein;

[0045] - Figure 5 A perspective view showing a third embodiment of the wristband mounting interface according to the present invention.

[0046] In all the figures, unless otherwise stated, common elements have the same reference numerals. Detailed Implementation

[0047] Figure 1 A perspective view of a first embodiment of a portable article 1 according to the present invention is shown.

[0048] Figure 2 Show Figure 1 An exploded view of the first embodiment of the portable article 1 described herein is provided to show the various components constituting the attachment system for attaching a wristband.

[0049] In this application, the portable item 1 is in the form of a timepiece, such as a watch intended to be worn on a user's wrist. It should also be understood that the portable item 1 may be, for example, a pedometer, a heart rate monitor, or any other portable item intended to be worn, for example, on the wrist via a wristband.

[0050] The portable item 1 includes a casing 20 designed to receive, for example, a watch movement (not shown here for clarity). The watch movement carries and drives a device for displaying information items (such as the current time).

[0051] The case 20 includes a central member 21, which is closed by a case back in the lower part and a case crystal (not shown) in the upper part. The case 20 may also include a bezel (not shown) mounted on the central member 21 and capable of carrying the case crystal, the bezel being optional.

[0052] The shell 20 illustrated is typically circular. However, the shell 20 may have other known embodiments without departing from the scope of the invention.

[0053] The center component 21 does not have a fastening corner piece, but instead includes two longitudinal cavities 110 ( Figure 1 and 2 A single longitudinal cavity (visible in the image) forms a first part of the attachment system 100 for attaching the wristband 30. The longitudinal cavity 110 is configured to receive each end 31 of the wristband 30, and more particularly, to receive a mounting interface 200 which is solidified to one end 31 of the wristband 30, the mounting interface 200 forming a second part of the attachment system 100 for attaching the wristband 30.

[0054] Each longitudinal cavity 110 arranged in the central member 21 forms a mounting slide extending in the longitudinal direction XX.

[0055] Therefore, the shape of the longitudinal cavity 110 is adapted to ensure a sliding connection along the longitudinal direction XX, and to block other degrees of freedom, especially in the direction transverse to the longitudinal direction XX.

[0056] Each longitudinal cavity 110 is configured to cooperate with a complementary mounting interface 200 in such a way as to ensure quick, simple and detachable installation of the wristband 30.

[0057] Each longitudinal cavity 110 is configured to receive via a sliding mounting interface 200 and to ensure that the mounting interface 200 is guided to translate along the longitudinal direction XX until a locked position is reached.

[0058] The longitudinal cavity 110 is created at two fastening portions opposite each other, which are located on either side of the dial (not shown) and advantageously at 6 o'clock and 12 o'clock.

[0059] The longitudinal cavity 110 extends over two circular sections of the central member 21 located at 6 o'clock and 12 o'clock.

[0060] Each longitudinal cavity 110 is open, that is, it is open at both the first and second ends, so that each mounting interface 200 fixed to the wristband 30 can be introduced and removed through the first and second ends of the longitudinal cavity 110 (that is, through the end located on the crown side (3 o'clock side) or through the end located on the opposite side of the crown (9 o'clock side)).

[0061] The wristband 30 is in the form of two segments 32 (only one segment is shown), which are connected to each other by a closing device (not shown), such as a buckle, folding buckle or any other special element, so that the function of attaching the two segments 32 of the wristband 30 around the user's wrist can be performed.

[0062] According to an alternative embodiment, the wristband 30 is a monofilament.

[0063] The wristband 30 is preferably flexible.

[0064] The mounting interface 200 is a one-piece component, which ensures multiple functions.

[0065] The mounting interface 200 specifically includes elements for ensuring that the wristband 30 is reversibly secured to the housing 20, and has elements that facilitate the removal of the wristband and thus facilitate the user's interchangeability of the wristband.

[0066] For this purpose, the mounting interface 200 includes an element 210 for receiving and securing one end 31 of the wristband 30.

[0067] In this first embodiment, the element 210 for receiving and securing one end 31 of the wristband 30 is formed by two support plates 211 and 212, which are spaced apart from each other so that the end 31 of the wristband 30 can be positioned between the two support plates 211 and 212. Thus, the end 31 of the wristband 30 is defined by the two support plates 211 and 212 of the mounting interface 200.

[0068] More specifically, the element 210 for receiving and securing one end 31 of the wristband 30 is formed by a first upper support plate 211 and a second lower support plate 212. The two support plates 211, 212 are preferably parallel and extend in the longitudinal direction of the segment 32 of the wristband 30.

[0069] Advantageously, the distance between the two support plates 211, 212 is slightly less than the thickness of the section 32 at its end 31, such that the wristband 30 can be positioned between the two support plates 211, 212 while ensuring the pre-retention of the section 32. This configuration facilitates the operation of securing the section 32 to the mounting interface 200.

[0070] The support plates 211 and 212 have a plurality of openings 213 for passing through or hooking onto one or more of the components used to secure the wristband 30. The components used to secure the wristband 30 are selected based on the material of the links 32 of the wristband 30 (e.g., made of leather, elastic thermoplastic, fabric, etc.).

[0071] Thus, as an example, the end 31 of the wristband 30 can be sewn or welded to the opening 213, or it can be directly overmolded onto the mounting interface 200.

[0072] The mounting interface 200 also includes an elastic sleeve element 220 for axially locking the mounting interface 200 in the longitudinal cavity 110 in the longitudinal direction XX.

[0073] The resilient sleeve element 220 is formed by two resilient clips 221, 222 located at the longitudinal end of the mounting interface 200. The two resilient clips 221, 222 are configured to cooperate with two end housings 116, 117 provided in the longitudinal cavity 110 to block and lock the axial position of the mounting interface 200 (and therefore the wristband 30) in the longitudinal direction XX.

[0074] The two elastic clips 221 and 222 are symmetrical and are configured to be compressed within the longitudinal cavity 110 during installation.

[0075] The two elastic clips 221, 222 are configured to return to their free (uncompressed) position in the end housings 116, 117 of the longitudinal cavity 110 by elastic recovery. When the elastic clips 221, 222 are in the free position in the end housings 116, 117, axial movement of the mounting interface 200 in the longitudinal direction XX is blocked.

[0076] For this purpose, each elastic clip 221, 222 includes a support surface 223, which is arranged substantially perpendicular to the longitudinal direction XX and is configured to abut against the sidewall of the end housing 116, 117 of the longitudinal cavity 110.

[0077] The mounting interface 200 further includes an element 230 for locking the mounting interface 200 in a direction transverse to the longitudinal direction XX.

[0078] In the illustrated embodiment, this lateral direction at the longitudinal cavity 110 is analogous to the radial direction relative to the center of the shell.

[0079] The element 230 for locking the mounting interface 200 in a direction transverse to the longitudinal direction XX is formed by the front support surface 224 of the mounting interface 200, which cooperates with the undercut portion of the longitudinal cavity 110.

[0080] In this first embodiment, the mounting interface 200 is advantageously made of a polymer material, preferably a thermoplastic material.

[0081] In this first embodiment, the mounting interface 200 is manufactured, for example, by injection molding.

[0082] To remove the wristband 30, the user constrains one of the elastic clips 221 and 222 of the mounting interface 200 according to the selected removal direction, such that it elastically deforms until it reaches a compressed position, allowing the elastic clips 221 and 222 to be released from the corresponding end housings 116 and 117. Once the elastic clips 221 and 222 have been released from the end housings 116 and 117, the user can remove the wristband 30 by sliding the mounting interface 200 out of the longitudinal cavity 110.

[0083] The resilient clips 221 and 222 located at the ends of the mounting interface 200 are easily accessible to the user because they form an extension of the outer surface of the center member 21. Thus, the user can easily interact with the resilient clips 221 and 222 using their fingers, their nails, or basic tools that are also easily accessible to the user (such as pens, paperclips, staples) to continue removing the wristband.

[0084] Figure 3 A perspective view showing a second embodiment of the portable article 2 according to the present invention is shown.

[0085] Figure 4 Show Figure 3 An exploded view of a second embodiment of the portable article 2 described herein, so as to show the various components constituting the attachment system 100' for attaching the wristband 30.

[0086] In this second embodiment, except for the features described, portable item 2 is the same as portable item 1 described above.

[0087] In this second embodiment, the mounting interface 300 is made of a metallic material and is manufactured, for example, by stamping.

[0088] The mounting interface 300 includes an element 310 for receiving and securing one end 31 of the wristband 30, which is formed here by a groove 311 that allows the end 31 of a segment 32 of the wristband 30 to be introduced and teeth 312 configured to be inserted into and pass through the material of the segment 32 of the wristband 30 to ensure its locking.

[0089] The tooth 312 points into the groove 311 and extends in the direction of the section 32.

[0090] Advantageously, the mounting interface 300 includes four teeth 312 distributed within the slot 311.

[0091] The tooth 312 has a profile in the material that facilitates insertion and passing through the segment 32 of the wristband 30.

[0092] Advantageously, the teeth 312 have different profiles and / or different orientations, in such a way as to optimize the obstruction of longitudinal and lateral movement of the joint 32 within the groove 311.

[0093] Advantageously, each tooth 312 has an orientation different from the other teeth, so as to optimize the blocking of longitudinal and lateral movement of the joint 32.

[0094] The mounting interface 300 includes a resilient sleeve element 320 for axially locking the mounting interface 300 in the longitudinal cavity 120. Here, the resilient sleeve element 320 is formed by a single central resilient clip 321, which is configured to cooperate with the central housing 126 of the longitudinal cavity 120 provided for this purpose.

[0095] The central elastic clip 321 is configured to be compressed during the introduction of the mounting interface 300 into the longitudinal cavity 120.

[0096] The central elastic clip 321 is configured to return to its free position once the elastic clip 321 faces the central housing 126, thereby ensuring axial locking of the mounting interface 300.

[0097] To facilitate the removal of the mounting interface 300, the housing 20 includes an aperture accessible to the user from the outside. This aperture communicates with the central housing 126 of the longitudinal cavity 120. The aperture is configured to allow the introduction of basic tools, such as the end of a paperclip or staple, within easy reach of the user, to restrain the central resilient clip 321 of the mounting interface 300 in such a way that it elastically deforms until it reaches a compressed position that allows the mounting interface 300 to be removed.

[0098] The mounting interface 300 further includes an element 330 for locking the mounting interface 300 in a direction transverse to the longitudinal direction XX. The element 330 for locking the mounting interface 300 in the transverse direction is formed by front support surfaces 331, 332 that cooperate with complementary support surfaces arranged in the longitudinal cavity 120.

[0099] Figure 5 A perspective view showing a third embodiment of the mounting interface 400 according to the present invention is shown.

[0100] In this third embodiment, the mounting interface 400 is advantageously made of a polymer material, preferably a thermoplastic material.

[0101] The mounting interface 400 is manufactured, for example, by injection molding.

[0102] The mounting interface 400 includes an element 410 for receiving and securing one end 31 of the wristband 30, wherein the element is formed by a groove 411 that allows the end 31 of a segment 32 of the wristband 30 to be introduced, and protrusions 412 configured to be inserted into and pass through the material of the segment 32 of the wristband 30. The various protrusions 412 are advantageously distributed within the groove 411.

[0103] Advantageously, the opening of the groove 411 is slightly larger than the thickness of the end 31 of the segment 32 of the wristband 30, so as to facilitate the insertion of the end 31 of the segment 32 into the groove 411.

[0104] The external dimensions of the mounting interface 400 near the slot 411 are also slightly larger than the internal dimensions of the longitudinal cavity, causing the mounting interface 400 to be compressed within the longitudinal cavity. This has the effect of reducing the opening of the slot 411, clamping the segment 32 of the wristband 30 at the slot 411, and further introducing the protrusion 412 into the material of the segment 32. Thus, once in place in the longitudinal cavity, the segment 32 remains fixedly connected to the mounting interface 400.

[0105] In this embodiment, the wristband 30 can be advantageously removed from the mounting interface 400 if necessary.

[0106] Mounting interface 400 includes a resilient sleeve element 420 for axially locking mounting interface 400 in a longitudinal cavity. Here, the resilient sleeve element 420 is formed by a single central resilient clip 421, which is configured to cooperate with the central housing of the longitudinal cavity provided for this purpose.

[0107] The central resilient clip 421 is configured to be compressed during the introduction of the mounting interface 400 into the longitudinal cavity, and to return to its free position once the central resilient clip 421 is positioned facing the central housing of the longitudinal cavity.

[0108] To facilitate the removal of the mounting interface 400, the housing 20 includes an access hole accessible from the outside of the housing. This hole communicates with the central housing of the longitudinal cavity. The hole is configured to allow the introduction of basic tools, such as the end of a paperclip or staple, within easy reach of the user, to restrain and elastically deform the central resilient clip 421 until it reaches a compressed position that allows the mounting interface 400 to be removed.

[0109] The mounting interface 400 further includes an element 430 for locking the mounting interface 400 in a direction transverse to the longitudinal direction XX. The element 430 for locking the mounting interface 400 in the transverse direction is formed by outer support surfaces 431, 432 that cooperate with the undercut portion of the longitudinal cavity in order to ensure the obstruction of the mounting interface 400 in the transverse direction.

[0110] The mounting interfaces 200, 300, and 400 according to the invention enable reversible quick installation via the elastic sleeve of the wristband 30, rather than using an elastic sleeve system that is said to be irreversible and requires damage or deterioration of the mounting interface to remove the wristband 30 from the housing 20.

[0111] Mounting interfaces 200, 300, and 400 enable a stable, detachable connection of the wristband, particularly ensuring good stability of the mounting interface within the longitudinal cavity through a sliding connection.

[0112] In this invention, the central element 21 of the shell 20 does not include any protruding elements for securing the wristband 30. Therefore, the manufacture of the shell 20 can be performed integrally in an automated manner.

[0113] As an example, the center member 21 is made of a metallic material or a polymer. Advantageously, the center member 21 is made of a thermoplastic. As an example, the center member 21 may be made of polyamide 11, also known as polyundecylamide or nylon 11.

[0114] Center component 21 is advantageously a one-piece center component. However, it is also envisioned to produce center components assembled from multiple separately manufactured parts.

[0115] Advantageously, the polymer center piece is a one-piece center piece produced by injection.

[0116] The portable article according to the invention, and the attachment system for attaching a wristband as described in this application, significantly facilitates the method of producing the case because it is free of fastening corners and is perfectly symmetrical. Thus, the manufacture of the case and mounting interface can be automated. Consequently, the cost of manufacturing such components and such portable articles is reduced, particularly due to the lack of maintenance operations at the case and the use of a single interface part to fasten the wristband.

[0117] Furthermore, the mounting interface according to the invention simplifies the interchangeability of wristbands, making it possible to easily replace wristbands when they wear out, or to modify aesthetics with simple operations, without damaging the mounting interface or housing during wristband removal.

[0118] The present invention has been described using specific embodiments of the central component and mounting interface. However, it is obvious that other embodiments and embodiments derived from the described embodiments are contemplated.

Claims

1. A portable article (1, 2), said portable article comprising: A shell (20) having a central member (21) without fastening corners and including two longitudinal cavities (110, 120) extending in a longitudinal direction (XX); a wristband (30) including two ends (31), each end (31) of the wristband (30) cooperating with mounting interfaces (200, 300, 400), the mounting interfaces being configured to detachably cooperate with the longitudinal cavities (110, 120) of the central member (21) to allow mounting of the wristband (30), characterized in that the mounting interfaces (200, 300, 400) are one-piece, made of polymer or metal material, and as one-piece, the mounting interfaces (200, 300, 400) include the following integrally formed components: - Components (210, 310, 410) for receiving and securing one end (31) of the wristband (30); - An elastic sleeve element (220, 320, 420) integral with the elements (210, 310, 410) for axially locking the mounting interfaces (200, 300, 400) in the longitudinal cavity (110, 120) in the longitudinal direction (XX); - Components (230, 330, 430) integral with the elements (210, 310, 410) and the resilient sleeve elements (220, 320, 420) for axially locking the mounting interfaces (200, 300, 400) in the longitudinal cavities (110, 120) in a direction transverse to the longitudinal direction (XX).

2. The portable article (1, 2) according to claim 1, characterized in that, The mounting interfaces (200, 300, 400) are configured to cooperate by sliding into the longitudinal cavities (110, 120) of the center member (21).

3. The portable article (1) according to any one of claims 1 to 2, characterized in that, The element (210) for receiving and securing one end (31) of the wristband (30) is formed by two support plates (211, 212) spaced apart from each other such that the end (31) of the wristband (30) can be positioned between the two support plates (211, 212).

4. The portable article (1) according to claim 3, characterized in that, The support plates (211, 212) have openings (213) for passing through components used to secure the wristband (30).

5. The portable article (1) according to claim 3, characterized in that, The end (31) of the wristband (30) is sewn, welded or overlaid onto the support plate (211, 212).

6. The portable article (2) according to any one of claims 1 to 2, characterized in that, The element (310, 410) for receiving and securing one end (31) of the wristband (30) is formed by a groove (311, 411) for receiving the end (31) of the wristband (30) and teeth (312) or protrusions (412) configured to insert into and pass through the material of the wristband (30) to ensure the locking of the wristband.

7. The portable article (2) according to claim 6, characterized in that, The tooth (312) or the protrusion (412) is arranged in the groove (311, 411).

8. The portable article (2) according to claim 6, characterized in that, The teeth (312) have different profiles and / or different orientations.

9. The portable article (1, 2) according to claim 6, characterized in that, In the free position, the groove (411) has an opening that is thicker than the end (31) of the wristband (30).

10. The portable article (1, 2) according to claim 9, characterized in that, In the free position, the external dimension of the mounting interface (400) near the slot (411) is greater than the internal dimension of the longitudinal cavity, and the mounting interface (400) is configured to elastically compress to reduce the opening of the slot (411) during insertion of the mounting interface into the longitudinal cavity.

11. The portable article (1, 2) according to any one of claims 1 to 2, characterized in that, The resilient sleeve elements (220, 320, 420) are formed by at least one resilient clip (221, 222, 321, 421) cooperating with at least one housing (116, 117, 126) arranged in the longitudinal cavity (110, 120).

12. The portable article (1) according to any one of claims 1 to 2, characterized in that, The elastic sleeve element (220) is formed by two elastic clips (221, 222) located at the longitudinal end of the mounting interface (200), the two elastic clips (221, 222) being configured to cooperate with two end housings (116, 117) arranged in the longitudinal cavity (110).

13. The portable article (2) according to any one of claims 1 to 2, characterized in that, The resilient sleeve elements (320, 420) are formed by a central resilient clip (321, 421) configured to cooperate with a central housing (126) arranged in the longitudinal cavity (120).

14. The portable article (2) according to any one of claims 1 to 2, characterized in that, The resilient sleeve elements (220, 320, 420) are configured to be reversible, and the axial position of the mounting interface (220, 320, 420) can be unlocked without damaging one of the elements constituting the mounting interface (220, 320, 420).

15. The portable article (1, 2) according to any one of claims 1 to 2, characterized in that, The element (230, 330, 430) for locking the mounting interface (200, 300, 400) in the longitudinal cavity (110, 120) in a direction transverse to the longitudinal direction (XX) is formed by a support surface (224, 331, 332, 431, 432) that cooperates with the undercut portion or complementary stop surface of the longitudinal cavity (110, 120).

16. The portable article (1, 2) according to any one of claims 1 to 2, characterized in that, The central component (21) of the shell (20) is made of thermoplastic.

17. The portable article (1, 2) according to any one of claims 1 to 2, characterized in that, The longitudinal cavities (110, 120) are open, so that the mounting interfaces (200, 300, 400) can be inserted through the first or second end of the longitudinal cavities (110, 120) without discrimination.

18. The portable article (1, 2) according to any one of claims 1 to 2, characterized in that, The longitudinal cavities (110, 120) extend over two circular sections of the central member (21) located at 6 o'clock and 12 o'clock.

19. The portable article (1, 2) according to any one of claims 1 to 2, characterized in that, The portable item is a watch.

20. The portable article (1, 2) according to claim 16, characterized in that, The central element (21) of the shell (20) is made of polyamide 11.

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