Pull-out piece mechanism

Abstract

To provide a pull-out piece mechanism that can be better than known pull-out piece mechanisms.SOLUTION: A pull-out piece mechanism 100 for timepiece movement includes a pull-out piece 20 having a pull-out piece body 21 including a first part 21 with a connecting element 21a connecting to a control member 10, such as a pull-out piece stud 21a, and a second part 22. The first part 21 is attached to the second part 22. The first part 21 is movable with respect to the second part 22 between (i) a first position in which the connecting element 21a is able to engage with the control member 10 and (ii) a second position in which the connecting element 21a is not able to engage with the control member 10. The pull-out piece mechanism also includes an elastic return member 40 designed to return the first part 21 to the first position.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a pull-out piece mechanism. The present invention also relates to a clock movement comprising such a pull-out piece mechanism. The present invention also relates to a clock comprising such a clock movement or such a pull-out piece mechanism. The present invention also relates to a method for operating such a clock movement or such a clock. The present invention also relates to a method for assembling and dismantling such a clock movement or such a clock. [Background technology]

[0002] In a watch movement, the control member or stem is intended to allow winding, correcting or setting various functions of the movement. To this end, the control stem is associated with a setting lever or, more specifically, - fixing the control stem to the movement by means of connecting elements such as studs which belong to the pull-out pieces and which engage in grooves in the stem, - indexing the control true to a defined axial position via the cooperation between the pull-out piece and the pull-out piece spring, - controlling the position of the parts of the mechanism depending on the axial position of the control true so as to configure the parts of the mechanism in such a way as to enable the actuation of various winding, correction or setting functions; It cooperates with a pull-out piece that can perform multiple functions, such as:

[0003] To allow the movement to be mounted on or removed from a watch body, the control stem needs to be removable from the movement. For this purpose, the pull-out piece is typically removed by the watchmaker until the pull-out piece is out of range of the stem groove and the latter can be removed from the movement by the watchmaker.

[0004] This action entails moving the pull-out piece within the thickness of the movement and therefore requires free space above the pull-out piece, which is therefore unavailable for other systems of the movement.

[0005] Additionally, such movement of the pull-out tabs can be the source of a variety of different malfunctions, as the pull-out tabs can become entangled, jammed or interlocked with other parts of the mechanism, necessitating the movement to be removed from the case and potentially partially disassembled in order to restore correct operation of the movement.

[0006] To mitigate these problems, - Requiring removal of the control stem to be performed in place; - design some parts of the mechanism to be thick enough that the pull-out pieces cannot cross each other; A variety of demolition or design strategies are commonly used, such as:

[0007] Such a strategy introduces constraints in terms of functionality and thickness.

[0008] Various documents in the prior art disclose solutions that allow the removal of the control stem by acting only on the pull-off piece connecting element that engages with the stem. However, these solutions do not overcome all of the above-mentioned drawbacks. In particular, the prior art does not allow the control stem to lock itself spontaneously in the movement once it has been inserted.

[0009] US 6,399,433 discloses a setting mechanism provided with a translationally movable pull-out piece including a locking piece intended to cooperate with a groove in a control tassel. A particular feature of the mechanism is that the locking piece is provided with a slot with two wings that can occupy two angular positions within the pull-out piece. A quarter turn of the piece provides the transition from the locked configuration to the released configuration and vice versa. In the locked configuration, the locking piece is arranged such that the wings engage with the groove in the tassel to secure the tassel to the pull-out piece. In the released configuration, the wings match the external contour of the tassel to allow removal of the tassel.

[0010] US Pat. No. 5,399,433 discloses a mechanism including a pull-out piece provided with a thread intended to cooperate with a groove in the control stem. To fasten the control stem to the pull-out piece, the screw is screwed into the pull-out piece until its end can engage with the groove. Conversely, to enable the control stem to be removed from the movement, the screw is unscrewed until its end is outside the range of the groove. [Prior art documents] [Patent documents]

[0011] [Patent Document 1] European Patent Application Publication No. 1353245 [Patent Document 2] Swiss Patent Application Publication No. 8819 Summary of the Invention [Problem to be solved by the invention]

[0012] The object of the present invention is to provide a pull-off piece mechanism that allows improving the pull-off piece mechanisms known from the prior art. In particular, the present invention proposes a pull-off piece mechanism that allows limiting the amount of space required for its operation and simplifies the assembly and disassembly operations. [Means for solving the problem]

[0013] According to the invention, the pull-out piece mechanism is defined by claim 1.

[0014] Embodiments of the pull-out piece mechanism are defined by claims 2 to 10.

[0015] According to the invention, the clock movement is defined by claim 11.

[0016] According to the invention, the watch is defined by claim 12.

[0017] According to the invention, embodiments of the assembly method are defined by claims 13 and 14.

[0018] According to the invention, the decomposition method is defined by claim 15.

[0019] The accompanying drawings illustrate, by way of example, three embodiments of the watch according to the invention. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a diagram of a watch according to the invention. [Diagram 2] FIG. 2 is a perspective view of a first embodiment of a pull-out piece mechanism with first and second pull-out piece parts in a first relative position. [Diagram 3] FIG. 3 is a perspective view of a first embodiment of a pull-out piece mechanism with the first and second pull-out piece parts in a second relative position. [Figure 4] FIG. 4 shows a top view of the pull-out piece according to the first embodiment. [Diagram 5] 5 is a perspective view of the pull-out piece of FIG. 4 with the first and second pull-out piece parts in a first relative position. [Figure 6] FIG. 6 is a perspective view of the pull-out piece of FIG. 4 with the first and second pull-out piece parts in a second relative position. [Figure 7] FIG. 7 is a perspective view of a second embodiment of a pull-out piece mechanism, with first and second pull-out piece parts in a first relative position. [Figure 8] FIG. 8 is a perspective view of a second embodiment of a pull-out piece mechanism with the first and second pull-out piece parts in a second relative position. [Figure 9] FIG. 9 shows a top view of the pull-out piece according to the second embodiment. [Figure 10] FIG. 10 is a perspective view of the pull-out piece of FIG. 9 with the first and second pull-out piece parts in a first relative position. [Figure 11] FIG. 11 is a perspective view of the pull-out piece of FIG. 9 with the first and second pull-out piece parts in a second relative position. [Figure 12]FIG. 12 is a perspective view of a third embodiment of a pull-out piece mechanism, with the first and second pull-out piece parts in a first relative position. [Figure 13] FIG. 13 is a perspective view of a third embodiment of a pull-out piece mechanism, with the first and second pull-out piece parts in a second relative position. [Figure 14] FIG. 14 shows a top view of the pull-out piece according to the third embodiment. [Figure 15] FIG. 15 shows a top view of the pull-out piece according to the third embodiment. [Figure 16] FIG. 16 is a perspective view of the pull-out piece of FIGS. 14 and 15 with the first and second pull-out piece parts in a first relative position. [Figure 17] FIG. 17 is a perspective view of the pull-out piece of FIGS. 14 and 15 with the first and second pull-out piece parts in a second relative position. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] A first embodiment of a watch 300 is described below with reference to FIGS.

[0022] The watch 300 is for example a small timepiece, in particular a wristwatch, and includes a watch movement 200 that is intended to be mounted in a watch casing or case to protect it from the external environment.

[0023] The watch movement 200 is a mechanical movement, in particular an automatic movement, or a hybrid movement, or an electronic movement.

[0024] The clock movement 200 includes a pull-out piece mechanism 100 .

[0025] Whatever the embodiment, the extraction piece mechanism may be a pull-out piece comprising a pull-out piece body comprising a first part 21, comprising a connection element 21a for connection with a control member 10, such as a pull-out piece stud, and a second part 22, the first part 21 being attached to the second part 22, the first part 21 being movable relative to the second part 22 between (i) a first position, in which the connection element 21a is engageable with the control member 10, and (ii) a second position, in which the connection element 21a is not engageable with the control member 10; - an elastic return member designed to return the first part 21 to the first position; Includes.

[0026] The pull-out piece 20 enables the mechanism 100 to be configured according to the axial position of the control member 10 so as to enable the activation of various timepiece functions, in particular the winding, correcting or setting of the movement 200 .

[0027] In the following description, one exemplary embodiment of a control member 10 is a control stem 10 that is translationally and pivotally movable along and about axis A1 within a frame 90 of a movement 200.

[0028] The pull-out piece 20 engages with the control tine 10 via a connecting element 21a, which is intended to engage with a groove 11, machined on the control tine 10. In the following description, the connecting element 10 is of protruding shape, such as a stud.

[0029] The connecting element 21 a of the pull-out piece 20 also enables the control stem 10 to be held by a groove 11 in the movement 200 , or more specifically in the frame 90 .

[0030] The extraction piece 20 is indexed in the sense of its position, usually into two or three defined positions, by the extraction piece spring 30, i.e. two defined positions or two of the defined positions are stable positions of the extraction piece relative to the frame 90, which are separated by a succession of unstable positions. As a result, the control stem 10 is also indexed along the axis A1 by the extraction piece spring 30 via the extraction piece in said two or three positions. For this reason, the pull-out piece 20 is, inter alia: a first function of fixing the control stem 10 to the movement 200 via a connecting element 21a engaged in the stem groove 11; a second function of controlling the position of at least one part 50 of the mechanism 100 according to the axial position of the control stem 10 so as to configure said part to enable the activation of various winding, correction or setting functions; This can be done.

[0031] In the embodiment described, each of said functions is performed by two separate parts or components 21, 22 contained in the pull-out piece 20. The two parts 21, 22 can be moved relative to each other.

[0032] In this particular case, the first part 21 is provided with a connecting element 21a that can engage with the groove 11 of the arbour 10 and is therefore able to perform a first function, while the second part 22 is provided with at least one functional part 22a, for example of the cam surface type, that can engage with at least one part 50 of the mechanism 100, such as a lever 50, in order to perform a second function. Said functional part 22a constitutes a control element.

[0033] Thanks to this solution, the first part 21 of the pull-out piece 20 is intended to be removed by the watchmaker so that, in the second position, the second part 22 is located outside the range of the control stem 10 without being stressed or displaced relative to the frame 90.

[0034] The extraction piece 20 is therefore said to be in the release configuration when the connecting element 21a of the first part is arranged in the second position, outside the groove 11 of the arbor. The release configuration thus allows the arbor 10 to be extracted from the movement 200.

[0035] Conversely, when the connecting element 21a of the first part 21 is engaged with the groove 11 of the stem 10 in the first position, the pull-out piece 20 is said to be in the locked configuration, which thus allows the actuation of the pull-out piece mechanism 100 by the control stem 10 and allows the stem to be retained in the movement 200.

[0036] In the locked configuration, the first and second parts 21, 22 of the pull-out piece 20 are fixed to one another such that the pull-out piece 20 behaves like an integral assembly and like a conventional pull-out piece for activating the various functions of winding, correcting or setting the movement. In other words, in the locked configuration, the first and second parts 21, 22 of the pull-out piece 20 are arranged to move together in unison when the stem 10 is actuated into various positions.

[0037] Advantageously, the solution is designed such that the withdrawal piece 20 reconfigures spontaneously from the released configuration to the locked configuration as a result of the elastic return of the first part 21 relative to the second part 22. This is effected by an elastic return member 40, designed to return the first part 21 to the first position.

[0038] Advantageously, the elastic return 40 of the first part 21 also makes it possible to insert the control arbour 10 into the movement 200, by retracting the connecting element 21a. As soon as the connecting element 21a reaches the groove 11, the pull-out piece 20 reconfigures itself spontaneously into the locking configuration as a result of the elastic return, thus automatically fixing the arbour 10 to the movement 200.

[0039] More specifically, in the first embodiment, the extraction piece 20 is pivoted on the frame 90 via a pin 23 about an axis A2 perpendicular to the axis A1 of the control mandrel 10. The pin 23 thus constitutes an element guiding the extraction piece. The cooperation between the extraction piece 20 and the control mandrel 10 is such that a translational movement of the mandrel 10 along the axis A1 causes a rotation of the extraction piece 20 about the axis A2.

[0040] The first part 21 is assembled with the second part 22, which allows movement in one degree of freedom of translation parallel to the axis A2. The assembly is realized by a pin 23 and a tenon 21b, which are fixed to the first part and are respectively mounted in one of two holes 22c, 22b formed in the second part 22. When assembled to the first part 21, the shape of the pin 23 prevents the two parts 21, 22 of the pull-out piece 20 from being disassembled. For this purpose, a sliding connection is formed through the use of two guide pins 21b, 23 cooperating with the two holes 22b, 22c.

[0041] The second part 22 comprises an extraction piece stud 24 which is intended to engage with an extraction piece spring 30 so as to index the extraction piece 20 into three defined angular positions around the axis A2.

[0042] Furthermore, the functional portion 22a of the second part 22 is capable of cooperating with a portion 51 of a lever 50 to actuate various winding, correcting or setting functions.

[0043] To achieve the release configuration and enable the control stem 10 to be pulled out of the frame 90, the watchmaker simply presses axially on the pin 23 with a tool in order to lift the first part 21 as shown in Figure 6 and to release the connecting element 21a from the groove 11 of the stem 10. During this movement, the second part 22 advantageously maintains its position relative to the frame and is not lifted.

[0044] In this embodiment, the connecting element 21 a is a stud 21 a formed in or attached to the first part 21 .

[0045] The resilient return of the first part 21 from the released configuration to the locked configuration is performed by an extraction piece thrust spring 40. The spring 40 provides an axial thrust along the axis A2 tending to hold the extraction piece 20 in the locked configuration. The spring, here shown in the form of a leaf spring, is preferably fixed at one of its ends to the frame 90, for example by means of a screw.

[0046] In a conventional manner, the stud 10 is provided in such a way that, when it is inserted into the movement 200, it can push back the stud 21a via a tapered or chamfered portion arranged in front of the groove 11 on the stud 10. Thus, as a result of this shape and the elastic return of the first part 21, the insertion of the stud 10 enables the transition of the extraction piece 20 from the locked configuration to the released configuration to be performed automatically. As a result, as soon as the stud 21a reaches the groove 11, it spontaneously falls to the bottom of the groove as a result of the elastic return of the spring 40, thereby again configuring the extraction piece 20 into the locked configuration.

[0047] A second embodiment of the watch 300 is described in detail below with reference to Figures 7 to 11.

[0048] The watch 300 is for example a small timepiece, in particular a wristwatch, and includes a watch movement 200 that is intended to be mounted in a watch casing or case to protect it from the external environment.

[0049] The watch movement 200 is a mechanical movement, in particular an automatic movement, or a hybrid movement, or an electronic movement.

[0050] The clock movement 200 includes a pull-out piece mechanism 100'.

[0051] In the second embodiment, the extraction piece 20' also pivots on the frame 90 about an axis A2' perpendicular to the axis A1 of the control stem 10, via a pin 23' forming part of said extraction piece. The pin 23' thus constitutes an element guiding the extraction piece. The cooperation between the extraction piece 20' and the control stem 10 is such that a translational movement of the stem 10 along the axis A1 causes a rotation of the extraction piece 20' about the axis A2'.

[0052] The pull-out piece 20' comprises a first part 21' and a second part 22' which form the pull-out piece body. The pin 23' is here fixed to the second part 22'.

[0053] The first part 21' consists of a flexible body 21c', part of which is arranged within a portion of the second part 22', or comprises a flexible part 21c', part of which is arranged within or within a portion of the second part 22'. The fitting is achieved, for example, by means of a pin with a shoulder 21b', which is driven or welded into the second part 22'.

[0054] The free end of the flexible body 21c' or of the flexible part 21c' comprises a connecting element 21a', taking the form of a stud 21a'.

[0055] For this reason, the first part 21' and the second part 22' comprise portions that are arranged relative to one another. The first part and / or the second part comprise an elastic part 21c' or a blade 21c' between the second part (22') and the connecting element 21a' by means of an elastic return member 21c'.

[0056] The flexible body or flexible part 21c' is designed to deform primarily in a direction parallel to the axis A2' or substantially parallel to the axis A2' in order to release the stud 21a' from the groove 11 and to configure the withdrawal piece 20' in the release configuration. In this case the movement of the stud 21a' can be likened (especially because of the length of the flexible part) to a translation parallel to the axis A2'.

[0057] As in the first embodiment, the second part 22' comprises an extraction piece stud 24' intended to engage with an extraction piece spring 30' for indexing the extraction piece 20' into three defined angular positions.

[0058] In order for the stud 21a' to have a certain degree of rigidity when the stem 10 is actuated between the various defined axial positions of the mechanism, at least a part of the circumference of the stud 21a' is adapted to a complementary shape or contour 22c' machined in the second part 22'. Said shape 22c' constitutes a guide element that substantially guides or holds the stud 21a' in a plane perpendicular to the axis A1. The cooperation between the shape 22c' and the stud 21a' can be likened to a sliding connection. Thus, only actuation in a direction substantially parallel to the axis A2' can deform the flexible part 21c' and move the stud 21a'.

[0059] To be able to extract the control stem 10 and configure the extraction piece 20' in the release configuration, a configuration is provided that allows the watchmaker to press against the flexible part 21c' with a tool 500'. For this purpose, a hole 23a' is advantageously provided, passing through the pin 23', notably in its centre, or through other areas of the second part, said hole allowing the passage of the tool 500'.

[0060] As in the other embodiments, the withdrawal piece 20' advantageously returns spontaneously to the locking configuration, here due to the elastic return of the flexible part 21c', which allows the connection element 21a' to be spontaneously engaged in the groove 11 of the stud 10.

[0061] The release and spontaneous or automatic locking of the withdrawal piece 20' by the insertion of the control stem 10 is also ensured in this embodiment.

[0062] A third embodiment of a watch 300 is described in detail below with reference to Figures 12 to 17.

[0063] The watch 300 is for example a small timepiece, in particular a wristwatch, and includes a watch movement 200 that is intended to be mounted in a watch casing or case to protect it from the external environment.

[0064] The watch movement 200 is a mechanical movement, in particular an automatic movement, or a hybrid movement, or an electronic movement.

[0065] The clock movement 200 includes a pull-out piece mechanism 100".

[0066] In this third embodiment, the pull-out piece 20'' is also pivoted in the frame 90 via a pin 23'', about an axis A2'' perpendicular to the axis A1 of the control shaft 10. The pin 23'' thus constitutes an element for guiding the pull-out piece.

[0067] The pull-out piece 20'' includes a first part 21'' and a second part 22'', which form the pull-out piece body.

[0068] A unique feature of the third embodiment is that the pull-out piece 20″ is brought into the release configuration by a substantial translational movement of the first part 21″ in a plane perpendicular to the axis A2″. For this purpose, the first part comprises a first guide groove 21d″ intended to engage with a pin having a shoulder 23″ driven into the second part 22″. In addition, the first part 21″ comprises a pull-out piece stud 24″ intended to engage with a second guide groove 22b″ machined on the second part 22″. Of course, the first and second guide grooves 21d″, 22b″ are preferably oriented in the same direction. This results in a sliding connection comprising two oblong openings 21d″, 22b″ engaging with the two pins 23″, 24″. The stud 24″ also allows for indexing of the pull-out piece by engaging with the pull-out piece spring 30″.

[0069] The first part 21 ″ also includes a stud 21 a ″, which is intended to engage in the true groove 11 .

[0070] In order to enable the withdrawal piece 20'' to be configured in the release configuration, the stud 21a'' is configured to be released from the side of the true groove 11, i.e. in a direction perpendicular to the axis A1, i.e. in a direction substantially perpendicular to the axis A2'' and substantially perpendicular to the axis A1.

[0071] For this purpose, in order to be able to extract the control stem 10, an arrangement is provided which enables the watchmaker, using a tool, to move the stud 24" and the first pull-out piece part 21" in the direction defined by the first and second slide grooves 21d", 22b" until the release configuration is achieved.

[0072] In this embodiment, the elastic return of the first part 21'' is provided directly by the extraction piece spring 30'', which exerts a force oriented to hold the extraction piece 20'' in the locked configuration.

[0073] As in the two previous embodiments, an arrangement is provided in which the insertion of the control stem 10 into the movement causes the extraction piece 20'' to be spontaneously configured into the released configuration and, in the same movement, as soon as the stud 21 a'' reaches the groove 11 of the stem, causes it to be spontaneously configured into the locked configuration.

[0074] As is evident from the three presented embodiments, the elastic return of the first part 21, 21', 21" may be ensured, inter alia, by the extraction piece propulsion spring 40, by a flexible part 21c' arranged in the extraction piece or by the extraction piece indexing spring 30". Nevertheless, more generally, the elastic return of the first part 21, 21', 21" or the spontaneous configuration of the extraction piece 20, 20', 20" from the released configuration to the locked configuration may be brought about by any elastic means, internal or external to the extraction piece.

[0075] Of course, the proposed solution is also compatible with pull-out pieces which are intended to move linearly relative to the frame as a result of the controlled true axial movement.

[0076] In the three presented embodiments, the pull-out piece connecting element cooperating with the groove of the spur is arranged above the spur. Of course, the part may also be arranged laterally of the groove. This alternative, incidentally, is particularly suitable for the third embodiment. The connecting element engaging with the groove of the spur may also be arranged below the spur.

[0077] As an alternative to the embodiment presented, in which the relative movement between the first and second parts during the transition of the pull-out piece from one configuration to the other is a translational movement, the relative movement between the first and second parts may also be a rotational movement or a combination of rotational and translational movements, this variant being particularly suitable for the third embodiment.

[0078] Whatever the embodiment or variant, the control stem can be replaced by other interface means, such as a push button, which can be held in the watch movement by a pull-out tab.

[0079] Whatever the embodiment or variant, the pull-out piece may then be a lever or a control of the mechanism.

[0080] Regardless of the embodiment or modification, the first part or the second part is - the first element 24;24';24" which indexes the pull-off piece, and / or a first element 23;23';23", which guides the pull-out piece relative to the frame 90 of the clock movement 200, may include: This means that these elements can be provided on the same part of the pull-out piece or on several different parts of the pull-out piece.

[0081] Whatever the embodiment or variant, the first and second parts are fixed relative to one another in a first position, and they may be returned towards one another under the influence of a resilient return member provided to block one degree of freedom of the sliding connection connecting the first and second parts.

[0082] The present invention also relates to a method relating to said pull-out piece mechanism.

[0083] In a first implementation of the method for assembling the control member 10 with the above-mentioned timepiece movement 200 or with the above-mentioned timepiece 300 (i.e. a complementary assembly for forming a timepiece), the method comprises the steps of: - the act of inserting the control member 10; - a movement of the first part 21;21';21" relative to the second part 22;22';22" in a first direction from the first position to the second position and a movement of retraction of the connection element 21a;21a';21a" from the control member 10, followed by a movement of the first part 21;21':21" relative to the second part 22;22';22" in a second direction opposite to the first direction until the element of the connection to the control member 10 is engaged in the profile 11 of the control member 10 and until the first part returns to the first position in which the first and second parts are fixed to one another, Includes.

[0084] In a second implementation of the method for assembling the control member 10 with the above-mentioned timepiece movement 200 or with the timepiece 300 (i.e. with a complementary assembly for forming a timepiece), the method comprises the steps of: - the watchmaker moving the first part 21;21';21" relative to the second part 22;22';22" from a first position to a second position in a first direction and holding the first part in the second position, - the act of inserting the control member 10; - a resilient return movement of the first part 21;21';21" to a first position in which the first part and the second part are fixed to one another, Includes.

[0085] In carrying out the method for dismantling or dismantling the control member 10 for the above-mentioned timepiece movement 200 or for the above-mentioned timepiece 300, the method comprises the steps of: - moving the first part 21;21';21" relative to the second part 22;22;22" in a first direction and holding the first part in a second position, - the withdrawal movement of the control member 10, - a spring return movement of the first part to the first position; Includes.

[0086] In carrying out the method of operation of the above-mentioned clock movement 200 or of the above-mentioned clock 300, the method comprises: - after-sales service steps, in particular assembly or disassembly, including the implementation of the above-mentioned methods, and a steady-state operating phase, in which every actuation of the control member 10 which moves the first part 21;21';21" moves the second part 22;22';22" as a unit, as if the first and second parts were manufactured as a single piece; Includes.

[0087] The above-mentioned solution offers advantages: since the pull-off piece is manufactured in two parts, the functions are also separable. In particular, the solution advantageously allows the part provided for fixing the control stem to be separated from the part provided for controlling the various parts of the mechanism, thus making it possible to overcome, inter alia, the known problems associated with pulling the control stem out of the movement when the movement is mounted or removed from the watch.

[0088] Furthermore, the insertion of the control stem into the movement may be possible without the need for any specific action by the watchmaker to secure it to the pull-out piece. In particular, the above-mentioned solution advantageously allows the pull-out piece to spontaneously lock itself to the control stem as the control stem is inserted into the movement.

[0089] According to the prior art, within a watch movement, the pull-out piece is generally arranged in the direct vicinity of the control arbour, which means that the mechanism of the movement is arranged close to said arbour. In other words, the pull-out piece and the mechanism of the movement are generally arranged in the thickness direction of the movement at a height equal to the height of the control arbour. The proposed solution makes it possible to keep a first part of the pull-out piece in the direct vicinity of the control arbour and to offset the second part of the pull-out piece in the height direction, which gives more freedom to the position of the mechanism within the thickness of the movement. Thus, by careful overlapping of the two parts of the pull-out piece, it is possible to offset the height of the arbour within the thickness of the movement without changing the position of the mechanism of the movement in the height direction, and vice versa. [Explanation of symbols]

[0090] 10 Control member 20 Pull-out piece 21 First Part 21a Connection elements 21b Guide pin 21c Elastic return member 22 Second Part 22a First Control Element 22b hole 22c hole 23 Guide pin 24 First element 30 Elastic return member 40 Elastic return member 90 frames 100 Removal piece mechanism 200 Clock Movements 300 Watches

Claims

1. A pull-out piece mechanism (100) for a watch movement (200), said mechanism comprising: a pull-out piece (20; 20'; 20") comprising a pull-out piece body (21, 22; 21', 22'; 21", 22") comprising a first part (21; 21'; 21") comprising a connection element (21a; 21a'; 21a") for connection with a control member (10), such as a pull-out piece stud (21a; 21a'; 21a"), and a second part (22; 22'; 22"), said first part being attached to said second part, said first part being movable relative to said second part between (i) a first position, in which said connection element (21a; 21a'; 21a") is engageable with said control member (10), and (ii) a second position, in which said connection element (21a; 21a'; 21a") is not engageable with said control member (10); a resilient return member (40; 21c'; 30") designed to return said first part (21; 21'; 21") to said first position; Including, Pull-out piece mechanism (100)

2. The second part (22; 22'; 22") comprises a first control element (22a; 22a'; 22a") for controlling a member of the clock movement (200), the first part (21; 21'; 21") or the second part (22; 22'; 22") being A first element (24; 24'; 24") for indexing said pull-out piece, and / or A first element (23; 23'; 23"), which guides said pull-out piece against the frame (90) of the watch movement (200). Including, The pull-out piece mechanism (100) of claim 1.

3. said first part (21; 21'; 21") is movable, in particular exclusively, relative to said second part (22; 22'; 22") in a direction or in a plane perpendicular or substantially perpendicular to the longitudinal axis (A1) of the control member; A pull-out piece mechanism according to claim 1 or 2.

4. said first and second parts are fixed to each other in said first position, and are returned relative to each other under the influence of said elastic return member (40; 21c'; 30"), intended in particular to block one degree of freedom of the sliding connection connecting said first and second parts; A pull-out piece mechanism according to any one of claims 1 to 3.

5. the axis of the sliding connection is parallel or substantially parallel to the axis (A2; A2') of the first element guiding the pull-out piece relative to the frame (90); The pull-out piece mechanism of claim 4.

6. the axis of the sliding connection is perpendicular or substantially perpendicular to the axis (A2″) of the first element guiding the pull-out piece relative to the frame (90); The pull-out piece mechanism of claim 4.

7. The sliding connection includes a contour (22c') which engages with a complementary shape belonging to the connecting element (21a'). A pull-out piece mechanism according to claims 4 to 6.

8. The sliding connection comprises two guide pins (21b, 23) which engage with two holes (22b, 22c), A pull-out piece mechanism according to any one of claims 4 to 6.

9. The sliding connection includes two oblong openings (21d'', 22b'') that engage with two pins (23'', 24''). A pull-out piece mechanism according to any one of claims 4 to 6.

10. the first part (21') and the second part (22') comprise portions arranged relative to one another, the first part and / or the second part comprising the elastic return member (21c') as a flexible section (21c') or blade (21c') between the second part (22') and the connecting element (21a'), A pull-out piece mechanism according to any one of claims 1 to 7.

11. A timepiece movement (200) comprising an extraction mechanism (100) according to any one of the preceding claims.

12. A clock movement (200) according to claim 11, and / or A mechanism (100) according to any one of claims 1 to 10, Including, Clocks (300), especially wristwatches.

13. A method for assembling a control member (10) with a timepiece movement (200) according to claim 11 or with a timepiece (300) according to claim 12, comprising the steps of: An act of inserting said control member (10), said insertion movement results in a movement of said first part (21;21';21") relative to said second part (22;22';22") in a first direction from said first position to said second position and a movement of retraction of said connecting element (21a;21a';21a") from said control member (10), followed by a movement of said first part (21;21':21") relative to said second part (22;22';22") in a second direction opposite to said first direction until said connecting element (21a;21a';21a") is engaged within the profile (11) of said control member (10) and until said first part returns to said first position in which said first part and said second part are fixed to each other; Including, method.

14. A method for assembling a control member (10) with a timepiece movement (200) according to claim 11 or with a timepiece (300) according to claim 12, comprising the steps of: moving said first part (21;21';21") relative to said second part (22;22';22") from said first position to said second position in a first direction and holding said first part in said second position; An act of inserting said control member (10), - a resilient return movement of said first part (21; 21'; 21") to said first position in which said first part and said second part are fixed to each other, Including, method.

15. A method for dismantling a control member (10) from a timepiece movement (200) according to claim 11 or from a timepiece (300) according to claim 12, comprising the steps of: - moving said first part (21; 21'; 21") in a first direction relative to said second part (22; 22; 22") and holding said first part in said second position; A withdrawal movement of the control member (10), a resilient return movement of said first part (21; 21'; 21") to said first position, Including, method.

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