EP3883424B1 - End piece - Google Patents

Description

Technical area

The present invention relates to a tip, in particular a tip arranged to be removably attached to a bar.

State of the art

In this context, the term “endpiece” designates an element arranged at the end of a part allowing assembly with another element, in particular with a bar.

The first link and the last link of a bracelet strand, for example of a bracelet for a wristwatch, constitute examples of end pieces. These links are generally formed differently from the other links of the bracelet, in order to allow assembly with the watch case and/or the clasp. An element at the end of a strand of leather goods is another example of a tip. The element at the end of a shoulder strap or handle, allowing it to be connected to a handbag, constitutes yet another example of an end piece. These examples are not limiting, although in this context the term tip is preferably used in the field of watchmaking, jewelery and leather goods.

The tip can be attached, sometimes removably, to a bar. In the case of a bracelet, this bar can form part of a clasp, the endpiece thus being able to be fixed to the clasp.

In the case of a bracelet for a wristwatch, the bar can also form part of a watch case, the endpiece thus being able to be fixed to the watch case.

In this context, the term “bar” indicates a substantially linear element, for example an axis. A bar can be an element distinct from a watch case and connected (for example in a removable manner) to the watch case. A bar can also be an element of a one-piece watch case, which cannot be detached from the watch case. The tip is generally linked, for example in a removable manner, to a part. It therefore makes it possible to link the piece to a barrette.

Non-limiting examples of parts which can be linked or fixed in a removable manner to a bar via an end piece include: a strand of bracelet, for example a strand of a wristwatch, or in general a strand of a leather goods article ; a bracelet link, generally shaped differently from a tip, for example a link from a wristwatch or in general a link from a leather goods article; a bracelet; a necklace, etc.

This type of end piece for the removable attachment of a part to a bar is known in principle, and for many years there have even been a large number of devices making it possible to attach a watch strap in a removable manner to a wristwatch.

Most of these tips require watchmakers' tools to change the bracelet. In addition, these endpieces run the risk of inadvertently detaching the bracelet, cannot be easily integrated into existing watch cases, or suffer from other disadvantages, such as an unattractive appearance which is nevertheless important in this field.

The document DE640024 describes a device intended to be removably attached to a bar. This device comprises a cylinder, each end of which surrounds a semi-cylinder, having a protrusion carrying a helical spring. This device also comprises a gripping part arranged to be manipulated by a user for unlocking the device. This part is attached to a mechanism of lockdown. The movement to lock and unlock the device is a rotational movement.

The document FR2634360 relates to means for attaching a watch strap to the case thereof. These means comprise a cylindrical body and a locking washer for this cylindrical body. This cylindrical body and this washer are coaxial and each mounted on a pivot shaft, the ends of which are housed in the casing by means of a helical spring. Maintaining the assembly in the locked position is ensured by an axial projection of the washer, one radial surface of which is intended to bear against a radial surface of an axial stop of the cylindrical body. The attachment of the bracelet to the cylindrical body is made possible thanks to the presence on the surface of the cylindrical body of an axial groove delimited by a projection directed tangentially to the cylinder and parallel to the groove. The latter is intended to receive a portion of a fixing bracket connected to the bracelet, while the projection is intended to be housed in the recess of the fixing bracket.

None of these solutions allows the user to understand that his attachment to a barrette has been carried out successfully.

There is therefore a need for a tip free of these limitations of the prior art.

Brief summary of the invention

An object of the present invention is to provide a tip allowing the user to understand that its attachment to a bar has been carried out successfully.

An object of the present invention is to provide a tip that can be removably attached to a bar by the user without requiring any tools.

An object of the present invention is to provide an endpiece which can be easily miniaturized and/or which can be adapted to elegant or ladies' watches.

An object of the present invention is to provide an end piece compatible with existing watch cases, in particular watch cases comprising horns and a bar on each side, for fixing the bracelet strands.

An object of the present invention is to provide a tip compatible with existing bracelets.

An object of the present invention is to provide a tip whose locking mechanism is not visible to the user when the part (for example a bracelet) is worn.

According to the invention, these objects are achieved in particular by means of an end piece according to claim 1, of a system according to claim 12, and of a removable fixing method according to claim 15.

• une gorge destinée à loger la barrette ;
• une pièce rotative apte à pivoter autour d'un axe parallèle à la barrette entre une position de verrouillage dans laquelle la pièce rotative empêche la barrette de quitter la gorge, et une position de libération dans laquelle la pièce rotative permet l'introduction ou l'extraction de la barrette dans ou respectivement hors de la gorge ;
• un mécanisme de verrouillage arrangé pour bloquer la rotation de la pièce rotative, notamment dans la position de verrouillage.

The end piece according to the invention is arranged to be removably fixed to a strip and comprises:

• a groove intended to house the bar;
• a rotary part capable of pivoting about an axis parallel to the bar between a locking position in which the rotary part prevents the bar from leaving the groove, and a release position in which the rotary part allows the introduction or extraction of the bar in or respectively out of the throat;
• a locking mechanism arranged to lock the rotation of the rotating part, in particular in the locking position.

The locking mechanism allows both locking and unlocking of the rotation of the rotating part.

The tip can be manipulated directly by the user, without requiring any tools. To fix it to the bar, it is sufficient for the user to move the bar forward in the groove of the end piece.

To detach the end piece from the bar, the user can actuate a locking element of the locking mechanism, for example via a gripping part, for example by moving it linearly outwards, i.e. say by moving it away from the rotating part, in particular along an axis parallel to the bar. It thus allows the rotary part to rotate in a direction opposite to that which had allowed the fixing, which makes it possible to detach the tip from the bar.

Advantageously, the parts of the endpiece according to the invention can easily be miniaturized, so that the endpiece according to the invention can also be adapted to elegant watches or for women.

Advantageously, the end piece according to the invention can be fixed to a bar. This bar can be for example the small metal rod already fixed between the horns of the case and on which the bracelet is fitted. If this bar is not present in an existing watch case, it can be added, for example by fixing it by welding or by any other means of removable or non-removable fixing to the horns or in general to the case of the watch. The end piece according to the invention is therefore compatible or can be made compatible with existing watch cases, provided that these cases include a bar or that this bar can be added.

Advantageously, when the end piece according to the invention is worn by the user, the locking mechanism is not visible to the user. This tip is therefore safe, because the risk of inadvertent detachment is very low or even zero, and improves the appearance of the part in which it is inserted, for example a strap of a wristwatch.

• un premier élément de verrouillage sur une deuxième surface de la pièce rotative,
• un deuxième élément de verrouillage dans l'embout.

According to the invention, the rotating part comprises a first surface (for example comprising the groove), and the locking mechanism comprises:

• a first locking element on a second surface of the rotary part,
• a second locking element in the end piece.

According to the invention, during rotation of the rotary part, the relative position between the second surface and the second locking element changes until the second locking element cooperates with the first locking element so as to block the rotation of the rotary part in the locking position.

According to the invention, the first locking element is a hole in the second surface and the second locking element is a lever, one end of the lever facing the second surface. During the rotation of the rotary part around the axis, the relative position between the second surface and the lever changes until the lever falls into the hole, thus blocking the rotation of the rotary part in the position of lockdown. Advantageously, when the lever falls into the hole, it produces an audible click which allows the user to understand that the fixing has been carried out successfully.

In a variant, the rotating part has an asymmetrical shape arranged to block or release the bar. In another variant, the rotary part comprises a groove developing in the direction of the axis, the groove comprising a first bottom.

In a variant, the end piece comprises an entry surface, this entry surface comprising a housing and the groove, the groove comprising a second bottom and two side surfaces, the rotating part being engaged in the housing.

Alternatively, in the release position, the first bottom faces the entry surface or one of the two side surfaces of the end piece, and in the locking position, the first bottom faces the second bottom. , so that both the first bottom and the second bottom surround the bar, thereby fixing the tip to the bar.

Advantageously, the actuation of the second locking element during the detachment of the end piece of the strip takes place from below. In the case where the endpiece is linked to a bracelet, for example a bracelet of a wristwatch, the expression “from below” indicates the part which is in contact with the user when wearing the bracelet.

Advantageously, the actuation of the second locking element during the detachment of the tip of the bar is carried out laterally, that is to say along an axis substantially parallel to the bar, or in other words perpendicular to the main direction of the part to which the end piece according to the invention can be fixed (for example the length of a strap of a wristwatch). In other words, in a variant the locking mechanism is arranged to act in a direction parallel to the bar, the second locking element allowing the unlocking of the endpiece being movable parallel to the bar and being located under a face of the mouthpiece intended to be against the user when the mouthpiece is worn by the user.

Advantageously, when fixing the end piece to the bar, the user can ensure that the bar engages in the end piece by approaching the end piece to the bar from above (that is to say , by the part that is not in contact with the user when wearing the part, for example a bracelet).

• l'embout selon l'invention,
• une barrette.

The present invention also relates to a system comprising

• the end piece according to the invention,
• a barrette.

In a variant, the bar is sized so that when the bar advances in the groove, it comes into contact with the rotating part causing its rotation around the axis.

In a variant, the system also comprises a part connected to the endpiece according to the invention, for example a bracelet, in particular a bracelet for a wristwatch.

Advantageously, the locking mechanism is not visible to the user when carrying the part.

• une pièce rotative comprenant une première surface et une deuxième surface, la deuxième surface comprenant un premier élément de verrouillage qui est un trou dans la deuxième surface,
• un deuxième élément de verrouillage qui est un levier, une extrémité du levier étant en regard de ladite deuxième surface,

le procédé comprenant les étapes suivantes :

• logement de la barrette dans une gorge de l'embout;
• pivotement d'une pièce rotative autour d'un axe parallèle à la barrette entre une position de verrouillage dans laquelle la pièce rotative empêche la barrette de quitter la gorge, et une position de libération dans laquelle la pièce rotative permet l'introduction ou l'extraction de la barrette dans ou respectivement hors de la gorge, dans lequel lors du pivotement de la pièce rotative, la position relative entre la deuxième surface et le levier change ;
• verrouillage de la position de la pièce rotative par un mécanisme de verrouillage lorsque le levier tombe dans le trou, en bloquant ainsi la rotation de la pièce rotative.

The present invention also relates to a method for the releasable attachment of an end piece to a bar, the end piece comprising

• a rotating part comprising a first surface and a second surface, the second surface comprising a first locking element which is a hole in the second surface,
• a second locking element which is a lever, one end of the lever facing said second surface,

the method comprising the following steps:

• housing of the bar in a groove of the end piece;
• pivoting of a rotary part about an axis parallel to the bar between a locking position in which the rotary part prevents the bar from leaving the groove, and a release position in which the rotary part allows the introduction or extraction of the strip into or respectively out of the groove, in which during the pivoting of the rotating part, the relative position between the second surface and the lever changes;
• locking of the position of the rotary part by a mechanism of locking when the lever falls into the hole, thus blocking the rotation of the rotating part.

Brief description of figures

• La figure 1 illustre une vue en perspective et explosée d'un mode de réalisation de l'embout selon l'invention.
• La figure 2 illustre une autre vue en perspective d'un mode de réalisation de l'embout selon l'invention.
• La figure 3 illustre une vue de côté du mode de réalisation de l'embout de la figure 2.
• La figure 4 illustre une vue de dessous du mode de réalisation de l'embout de la figure 2.
• La figure 5 illustre une vue de dessus du mode de réalisation de l'embout de la figure 2.
• La figure 6 illustre une vue de côté du mode de réalisation de l'embout de la figure 1, lorsque l'embout n'est pas fixé à une barrette.
• La figure 7 illustre la vue de côté de la figure 6, lorsque l'embout est fixé à une barrette (non illustrée).
• La figure 8 illustre la vue de côté de la figure 6, lorsque l'embout est détaché d'une barrette (non illustrée).

Examples of implementation of the invention are indicated in the description illustrated by the appended figures in which:

• The figure 1 illustrates a perspective and exploded view of an embodiment of the end piece according to the invention.
• The figure 2 illustrates another perspective view of an embodiment of the end piece according to the invention.
• The picture 3 illustrates a side view of the mouthpiece embodiment of the figure 2 .
• The figure 4 illustrates a bottom view of the mouthpiece embodiment of the picture 2 .
• The figure 5 illustrates a top view of the mouthpiece embodiment of the picture 2 .
• The figure 6 illustrates a side view of the mouthpiece embodiment of the figure 1 , when the tip is not attached to a bar.
• The figure 7 illustrates the side view of the figure 6 , when the tip is attached to a bar (not shown).
• The figure 8 illustrates the side view of the figure 6 , when the tip is detached from a bar (not shown).

Example(s) of embodiment(s) of the invention

The figure 1 illustrates a perspective and exploded view of an embodiment of the end piece 200 according to the invention. It can be removably attached to a bar, for example a watchcase bar (not shown). At least a part of the bar is intended to engage in the groove 22 of the end piece 200.

In the variant illustrated, the endpiece 200 comprises a rotating part 10, which has an essentially cylindrical shape, for example the shape of a roller. This rotary part 10 is arranged to rotate around an axis 19. In the variant illustrated, the axis is substantially parallel to the groove 22 of the end piece 200 (and therefore to the strip). In the variant illustrated, the axis 19 is arranged to link the rotating part 10 to the end piece 200.

• une première surface S1, comprenant une rainure 11 se développant dans la direction de l'axe 19,
• une deuxième surface S2, comprenant un premier élément de verrouillage 170.

In the variant illustrated, the rotating part 10 comprises:

• a first surface S1, comprising a groove 11 developing in the direction of the axis 19,
• a second surface S2, comprising a first locking element 170.

As will be seen, the groove 11 makes it possible to block or release the bar. It should however be understood that the presence of this groove 11 is not necessary to block or release the bar, and that the rotating part 10 could have a shape arranged to block or release the bar, for example an asymmetrical shape, without necessarily including a groove.

In the example illustrated, the first locking element 170 is a hole, in particular a blind hole, in the surface S2. It can be obtained for example by drilling the surface S2. In the example illustrated, this hole 170 is at the end of a guide groove 17 in the surface S2.

In the example illustrated, a second locking element 16 is located opposite and/or in contact with the second surface S2. In the example illustrated, the second locking element is a lever 16, one end of which is in contact with the second surface S2 under the action of an elastic element (the spring 18 in the example illustrated).

The rotating part 10 has a non-constant diameter along its length. In fact, its diameter is larger at the ends, so as to have more room for cooperation between the first locking element and the second locking element.

In the example of the figure 1 , the second surface S2 of the rotary part 10 is substantially perpendicular to the axis 19, however according to variants, the angle between the second surface S2 and the axis 19 can be different from 90°.

The rotating part 10 is housed in a housing 21 provided in the end piece 200. In the variant illustrated, the end piece 200 comprises holes 24 (only one of which is visible on the figure 1 ), which make it possible to receive the pin 19. The pin is therefore inserted in these holes 24 and then in a hole 14 passing through the rotary part 10, so as to allow the fixing of the rotary part 10 to the end piece 200. Other connection means can be provided to link (directly or indirectly) the rotating part 10 to the end piece 200 via the axis 19.

As best seen on the figure 2 , the groove 22 of the end piece 200 comprises a bottom 220. It can be obtained by recessing the end piece 200, in particular its entry surface 23.

In the variant of figure 1 , the spring 18 (or any other elastic element) cooperates with the lever 16 so that at rest (that is to say in the release position) the lever is pushed by the spring 18 against the second surface S2 of the rotary part 10. In other words, the spring 18 at rest is compressed and stores elastic energy.

In the variant of figure 1 , a plug 13 receives both the lever 16 and the elastic element 18. In another variant, the plug 13 receives the lever 16 or the elastic element 18.

In the variant of figure 1 , the end piece 200 comprises another housing 20 to receive the lever 16 and possibly also the elastic element 18 and the plug 13.

In the variant of figure 1 , a gripping piece 12 is secured to the lever 16 (or in general to the second locking element). It is arranged to be manipulated by a user to unlock the endpiece 200. In the variant of the figure 1 , the gripping part 12 comprises a body 120, having a section substantially in the shape of a semi-circumference, and a ring 122, allowing its connection with the lever 16. In particular, the lever 16 is inserted into the ring 122.

The gripping piece 12 also has grooves 121, to further facilitate its gripping by the user. The gripping piece 12 is arranged to come into contact with the user. Its shape and dimensions allow both to be manipulated by the fingers of a user while allowing his contact with the user to be as pleasant as possible.

The picture 2 illustrates another perspective view of an embodiment of the endpiece 200 according to the invention, at rest.

As seen on the picture 3 , which illustrates a side view of the embodiment of the tip 200 of the figure 2 , the bottom 110 of the groove 11 of the rotating part 10 is not opposite the bottom of the groove 22 of the end piece 200. As can be seen better on the picture 3 , the bottom 110 of the groove 11 faces a side surface 221 of the groove 22 of the endpiece 200. In the variant of the figure 6 , which illustrates another side view of the embodiment of the tip 200, the bottom 110 of the groove 11 of the rotating part is substantially opposite the inlet surface 23 of the end piece 200.

The figure 4 illustrates a bottom view of the tip 200 embodiment of the figure 2 , user side. The figure 5 illustrates a top view of the embodiment of the tip 200 of the picture 2 . On the figure 5 , a small part of the gripping piece 12 is visible to the user. However, this part of the gripping part 12 will be hidden by the part (for example a bracelet whose tip represents the first link).

The figure 6 illustrates a side view of the tip 200 embodiment of the figure 1 , when the tip 200 is not attached to the strip.

When the user inserts the strip into the groove 22 of the endpiece 200 (or brings the endpiece 200 close to the strip), the strip engages in the groove 22, the height of the strip being smaller than the height h2 of throat 22.

As the rotary part 10 is engaged in the housing 21 of the endpiece 200 so that in the release position the first bottom 11 is facing the entry surface 23 or one of the two side surfaces 221 of the groove 22, the height available for the advancement of the bar in the groove 22 is not constant and varies between a maximum value (the height h2 of the groove 22 in correspondence of the entry surface 23) and a value minimum h1.

In a preferred variant, the height of the strip is between h2 and h1.

As the bar continues to advance in the groove 22 of the endpiece 200 under the action of the user who pushes it and as the part rotary 10 is free to rotate around its axis 19, at a given moment it comes into contact with the rotating part 10 by causing it to rotate around its axis 19 in the direction of rotation indicated by the arrow F1 of the figure 7 .

In the example shown on the figures 6 and 7 , during this rotation, the relative position between the second surface S2 of the rotating part 10 and the second locking element (the lever 16) changes until the second locking element cooperates with the first locking element (the hole 170) so as to block the rotation of the rotating part 10 in the locking position.

In the locking position, the first bottom 110 is located opposite the second bottom 220, so that both the first bottom 110 and the second bottom 220 surround the bar, thus fixing the bar to the tip 200 (or the 200 tip to the bar).

In the variants of figure 1 , 6 and 7 , the second surface S2 of the rotary part 10 comprises a guide groove 17 to guide the relative movement between the second surface S2 of the rotary part 10 and the second locking element (the lever 19). In these variants, the first locking element is a hole 170 in correspondence of one end of this guide groove 17. The guide groove 17 can therefore also be used to limit the rotation of the rotary element 10.

When the lever 16 falls into the hole 17, thus blocking the rotation of the rotating part 10 in the locking position, an audible click may occur, which allows the user to understand that the fixing has been carried out successfully. .

In correspondence of the release position (illustrated for example on the figure 2 , 3 Where 6 ), the rotating part 10 does not rotate if a bar is not engaged in the groove 22 of the endpiece. In alternatively, this is obtained by simple friction of the rotating part 10 against the end piece 200.

To unlock the endpiece 200, the second locking element (the lever 16 for example) is moved away from the rotating part 10 as illustrated by the arrow F2 parallel to the bar ( figure 8 ), thereby allowing the rotating part 10 to pivot when the second locking element is pulled. The rotation of the part 10 takes place in a direction opposite to the direction of rotation when the strip is engaged (that is to say in a direction opposite to that of the arrow F1 of the figure 7 ).

Advantageously, the actuation of the second locking element during the detachment of the end piece 200 from the bar is carried out from below the part (for example a strap of a wristwatch) to which the end piece 200 is connected. .

Advantageously, the actuation of the second locking element during the detachment of the endpiece 200 from the bar is carried out laterally, that is to say parallel to the bar.

In a variant, the housing 20 for receiving the lever 16 is arranged to allow the movement of the lever 16 against the elastic force of the elastic element 18 so as to cause it to come out of the hole 170, the movement being substantially linear. in the direction of the bar.

As the gripping piece 12 undergoes a force when the endpiece 200 is unlocked, in a variant it is made of a material which is resistant to traction, for example metal. It can also be made of a material which avoids allergies (as it comes into contact with the skin of the user) and which improves its grip, for example rubber.

Reference numbers used in the figures

11

Rotating part groove (groove)

12

gripping piece

13

Cap

14

Rotating part hole

16

Second locking element (lever)

17

Guide groove

18

Elastic element

19

Axis

21

First accommodation

20

Second housing

22

Throat

23

Entrance area

110

Bottom of the rotating part groove

120

Gripper body

121

grip groove

122

Ring

170

Hole

200

Tip

220

Back of the throat

221

Side walls of the throat

S1

First surface of rotating part

S2

Second surface of the rotating part

F1

Arrow

F2

Arrow

h1

Minimum value of the height available for the advancement of the bar in the groove

h2

Maximum value of the height available for the advancement of the bar in the groove (height of the groove)

Claims (15)

1. End piece (200) arranged to be removably secured to a bar, said end piece (200) comprising:

   - a channel (22) intended to accommodate said bar;

   - a rotating part (10) capable of pivoting about an axis (19) parallel to said bar between a locking position in which the rotating part (10) prevents the bar from leaving said channel (22), and a release position in which the rotating part (10) allows the bar to be inserted into or removed from the channel (22);

   - a locking mechanism (170, 60) arranged to block the rotation of the rotating part (10),

   said rotating part comprising a first surface,
   the locking mechanism comprising

   - a first locking element (170) on a second surface (S2) of the rotating part (10),

   - a second locking element (16) in the end piece (200),

   upon rotation of said rotating part (10), the relative position between the second surface (S2) and said second locking element (16) changes until said second locking element (16) cooperates with said first locking element (170) so as to block the rotation of said rotating part (10) in the locking position,
   characterized in that

   said first locking element is a hole (170) in the second surface (S2),

   said second locking element is a lever (16), one end of said lever (16) being opposite said second surface (S2),

   and in that, upon rotation of said rotating part (10), the relative position between the second surface (S2) and said lever (16) changes until said lever (16) drops into said hole (170), thus blocking the rotation of said rotating part (10) in the locking position.
2. End piece (100) as claimed in claim 1, wherein the rotating part (10) has an asymmetric shape arranged to block or release the bar.
3. End piece (200) as claimed in claim 1, comprising said axis (19), the rotating part (10) comprising a groove (11) extending in the direction of said axis (19), said groove (11) comprising a first bottom (110).
4. End piece (200) as claimed in one of claims 1 to 3, comprising an entry surface (23), said entry surface comprising a recess (21) and said channel (22), said channel (22) comprising a second bottom (220) and two lateral surfaces (221), said rotating part (10) being engaged in said recess (21).
5. End piece (200) as claimed in one of claims 3 to 4, wherein:

   - in said release position, the first bottom (110) is opposite said entry surface (23) or one of the two lateral surfaces (221),

   - in the locking position, the first bottom (110) is located opposite the second bottom (220), so that both said first bottom (110) and said second bottom (220) surround the bar, thus securing the end piece (200) to the bar.
6. End piece (200) as claimed in one of claims 1 to 5, comprising an elastic element (18) that cooperates with said lever (16) so that, at rest, said lever (16) is pushed by said elastic element towards said second surface (S2) of said rotating part (10).
7. End piece (200) as claimed in one of claims 1 to 6, comprising a plug (13) comprising said lever (16) and/or said elastic element (18).
8. End piece (200) as claimed in one of claims 1 to 7, said second surface (S2) comprising a guide groove (17), one end of said guide groove (17) comprising said hole (70).
9. End piece (200) as claimed in one of claims 1 to 8, said locking mechanism being arranged to act in a direction parallel to the bar, said second locking element (12) allowing unlocking of the end piece (200), being movable parallel to the bar and being located under one face of the end piece (200), which face is intended to be against the user when the end piece (200) is worn by the user.
10. End piece (200) as claimed in one of claims 1 to 9, said locking mechanism comprising a grip part (12) arranged to be manipulated by a user in order to unlock the end piece (200).
11. End piece (200) as claimed in one of claims 1 to 10, said end piece (200) comprising another recess (20) for receiving said lever (16), this recess being arranged to allow said lever (16) to move counter to the elastic force of said elastic member (18) so as to cause it to exit from said hole (170), said movement being substantially linear in the direction of said bar.
12. Removable securing system comprising:

    - the end piece (200) as claimed in one of claims 1 to 11,

    - a bar.
13. System as claimed in claim 12, said bar being dimensioned so that when the bar advances in the channel (22), it comes into contact with the rotating part (10), causing it to rotate about said axis (19).
14. System as claimed in one of claims 12 or 13, comprising a part linked to the end piece (200), said part being for example a bracelet, in particular a bracelet for a wristwatch.
15. Method for releasably securing an end piece (200) to a bar, said end piece (200) comprising

    - a rotating part (10) comprising a first surface (S1) and a second surface (S2), the second surface (S2) comprising a first locking element which is a hole (70) in the second surface (S2),

    - a second locking element which is a lever (16), one end of said lever being opposite said second surface, said method comprising the following steps:

    - accommodating said bar a channel (22) of said end piece;

    - pivoting a rotating part (10) about an axis (19) parallel to said bar between a locking position in which the rotating part (10) prevents the bar from leaving said channel (22), and a release position in which the rotating part (10) allows the bar to be inserted into or removed from the channel (22), wherein during the pivoting of said rotating part (10), the relative position between the second surface (S2) and said lever changes;

    - locking the position of the rotating part (10) when said lever (16) drops into said hole (170), thus blocking the rotation of said rotating part (10).

Images