CH719000A2 - SECURE CONTROL DEVICE FOR A TIMEPIECE. - Google Patents

Abstract

The invention relates to a control member (1) for a timepiece, comprising a tube (2), a rotary transmission member (14) housed inside the tube (2) to be able to actuate a timepiece mechanism, at least one seal (24) interposed between the tube (2) and the transmission member (14), a crown (52) movable in translation, between an inactive position and an actuation position, in which it can drive the transmission member (14), (56) a spring (56) arranged to act on the crown (52) and tend to move it away from the tube (2), the transmission member (14) having a fixed longitudinal position , the crown (52) being free to rotate with reference to the transmission member (14) in its inactive, remote position, and carrying a first coupling member (38) in rotation arranged in engagement, in the position of actuation, with a second coupling member (40) integral in rotation with the transmission member (14).

Description

Technical area

The present invention relates to a control member, for a timepiece, comprising an X axis tube, intended to be made integral with a timepiece box, a longitudinal transmission member partially housed at the inside the tube and intended to be driven in rotation, along the X axis, in order to be able to actuate a timepiece mechanism of the timepiece, at least one annular seal interposed between the tube and the transmission member, a crown capable to be moved in translation, along the X axis, between an inactive position and an actuation position, in which it cooperates at least indirectly with the transmission member to drive it in rotation in response to an appropriate action of 'a user, an elastic return member arranged to act on the crown and tend to move it away from the tube.

The invention also relates to a timepiece box as well as a timepiece comprising such a control member, preferably a diver's watch.

State of the art

[0003] A control member meeting the above characteristics is presented in patent EP 0556155 B1.

[0004] This document describes and illustrates a control member comprising a lockable crown, the general principles of construction and operation of which are well known in the field of waterproof watches, in particular diving watches.

More specifically, this control member comprises a tube made integral with the caseband of the watch and through which is arranged a transmission member, with the interposition of an annular seal. The transmission member has the shape of a barrel integral with the crown and the end of which located in the case comprises a coupling member capable of cooperating with a rod arranged in the case of the watch, in order to move it axially and spin it. Furthermore, the tube has a thread, on the outside of the middle part, with which a thread provided inside the crown can cooperate to lock the latter, by screwing, when it is not in use. The bottom of the crown houses an additional seal arranged so as to be compressed when the crown is screwed onto the tube. In addition, a spring is interposed between the rod arranged in the watch case and the crown, so as to act on the latter and tend to move it away from the caseband.

[0006] From the point of view of operation, when the crown is unscrewed, the spring acts on it to push it back towards a first actuating position. In this movement, the barrel integral with the crown also moves axially, with reference to the rod arranged in the box, and its coupling member is positioned in engagement with a suitable section of the rod to allow it to be driven in rotation, by rotation of the crown. It is possible to provide at least one additional pulled out position to actuate at least one additional horological function by rotation of the crown, the barrel then driving the stem in translation when the crown moves from its unlocked position to a pulled out position.

[0007] It is noted in particular from the figures of this patent that the seal placed between the tube and the barrel must have a large diameter due to the diameter of the barrel. In addition, this seal must also have a large section to limit its deformation during manipulation of the crown. Indeed, the joint is in contact with the barrel by its internal wall and with the tube by its external wall, but only the barrel rotates when the crown is unscrewed, giving rise to a first type of constraint undergone by the joint. Once the crown is released, it moves away from the middle, taking the barrel with it. Thus, the axial displacement of the barrel while the tube remains fixed gives rise to a second type of stress on the joint. The first type of constraint is still applied to the seal when the crown is pivoted by the user to actuate the corresponding watch function, but this time this constraint can present two opposite directions.

[0008] The seal must therefore be robust enough to exhibit minimal deformation each time it undergoes one of these stresses.

[0009] Furthermore, these mechanisms for locking crowns by screwing can pose certain problems over time. It may happen that the user screws the crown with too much torque, thus causing damage to the thread of the tube and/or the crown. In addition, if the crown remains screwed down for a long time without being used, seizing may occur over time, which may also be damaging to the tube and/or the crown.

[0010] It will also be noted that a more specific problem may appear in the case of diving watches: if it is generally possible to unscrew the crown during a dive without risk of water seeping into the case, its screwing later is not recommended before the end of the dive. Indeed, the axial displacement of the crown and its barrel towards the inside of the case can give rise to a deformation of the seal favoring the infiltration of water into the case, further accentuated by the compression of the water located between the crown and the box. Typically, this type of screw-down crown can be implemented in a diver's watch to control a flange arranged in the case and intended to display the duration of a dive. In this case, the fact of not being able to relock the crown during a dive can be problematic since it can give rise to untimely rotations of the crown causing a misadjustment of the indication provided by the flange.

[0011] Thus, it appears from the foregoing that the need still exists to be able to have a control member comprising a crown, for a timepiece, which is both safe, both from the points of view of handling and of sealing, ergonomic and space-saving.

Disclosure of Invention

[0012] A main object of the present invention is to propose an alternative construction of a secure control member for a timepiece having great ease of handling without its ability to be neutralized having a significant impact on its aesthetic appearance and its size, and does not compromise the tightness of the box with which it is associated.

To this end, the present invention relates more particularly to a control member of the type indicated above, characterized in that the transmission member has a fixed longitudinal position predefined with reference to the tube, that the inactive position of the crown corresponds to that in which it is moved away from the tube under the effect of the action of the elastic return member, the crown being free to rotate with reference to the transmission member in its inactive position, and that the crown carries a first coupling member in rotation arranged in engagement, in the actuating position, with a second coupling member integral in rotation with the transmission member.

[0014] Thanks to these characteristics, in particular the fact that the transmission member has a fixed longitudinal position with reference to the tube, the tightness of the box cannot be compromised when handling the crown. In addition, the crown being remote from the case when it is in its inactive position, the seizing liable to occur with screw-down crowns cannot occur with the construction according to the invention. Similarly, this construction entailing a mode of manipulation different from that associated with screw-down crowns, the risk of application of a harmful torque, by the user, cannot arise here either. Finally, it should be emphasized that these advantages of the construction according to the invention are not obtained to the detriment of a high level of safety of the corresponding control member, since the actuation of the timepiece mechanism associated with it requires, on the part of the user, that he exerts pressure on the crown before rotating it to actuate the watch mechanism. Thus, any risk of untimely actuation of the associated timepiece mechanism is eliminated.

[0015]Preferably, provision may be made for the transmission member to have the shape of a rod in which is formed at least one annular groove defining a housing for the annular seal.

[0016] In this case, provision can also be made for the transmission member to comprise at least one second annular groove defining a housing for a second annular seal reinforcing the seal between the transmission member and the tube, preferably at least second and third annular grooves, each of which defines a housing for an additional annular seal reinforcing the seal between the transmission member and the tube.

[0017] In general, provision can be made for the transmission member to carry an abutment surface arranged to cooperate with a rest surface integral with the crown to define the inactive position of the latter.

[0018] It is then more particularly possible to provide for this resting surface to be defined on an annular ring arranged inside the crown, preferably being secured to the latter by driving in, gluing, welding or brazing.

In this case, it is advantageous to provide that the first coupling member is also provided on this annular ring.

[0020] More generally, provision may be made for the second coupling member to comprise a ring having a central polygonal hole cooperating with a connecting section of the transmission member, of complementary shape, such that any rotation of the ring causes a corresponding rotation of the transmission member.

Furthermore, provision can be made for each of the first and second coupling members to have a toothing or a knurling capable of cooperating with the other coupling member, the latter having a toothing or a complementary knurling.

[0022] In general, provision may preferably be made for the transmission member to carry, at its end intended to be positioned inside the case, a third coupling member intended to cooperate with a watch mechanism, the third coupling member preferably comprising an X axis toothing.

[0023] According to a preferred embodiment, it is also possible to provide for the third coupling member to define an axial stop of the transmission member cooperating with the tube, to prevent any axial displacement of the transmission member in the direction from the outside of the box, and that the transmission member also carries a shoulder arranged to cooperate at least indirectly with the tube so as to prevent any axial displacement of the transmission member towards the inside of the box.

[0024] In general, provision can be made for the elastic return member to be a helical spring, one end of which is arranged to bear against the tube and the second end is arranged to bear against the crown.

[0025] The invention also relates to a timepiece box and a timepiece comprising a control member having all or part of the characteristics which have just been described.

According to a preferred embodiment, provision may be made for the timepiece, preferably a diver's watch, to comprise a rotating flange arranged in kinematic connection with the transmission member.

Brief description of the drawings

Other characteristics and advantages of the present invention will appear more clearly on reading the detailed description of two preferred embodiments which follows, made with reference to the accompanying drawings given by way of non-limiting example and in which: FIG. 1 represents a simplified exploded perspective view of a secure control member for a timepiece according to a first preferred embodiment of the invention; FIGS. 2a and 2b represent the same view in simplified longitudinal section of the control member of FIG. 1, in two different configurations; FIGS. 3a and 3b represent the same simplified partial perspective view of the control member of FIG. 1 in the two different configurations of FIGS. 2a and 2b; FIG. 4 represents a simplified exploded perspective view of a secure control member for a timepiece according to a second preferred embodiment of the invention, and FIGS. 5a and 5b represent the same view in simplified longitudinal section of the control member of FIG. 4, in two different configurations.

Embodiment(s) of the Invention

[0028] Figure 1 shows an exploded and simplified perspective view of a control member 1 for a diver's watch according to a first preferred embodiment of the invention. Figures 2a and 2b show the same simplified longitudinal sectional view of the control member 1, in two different configurations, and provide a better understanding of how the components illustrated in Figure 1 cooperate with each other.

The control member 1 comprises a tube 2 intended to be secured to a box (not shown) of a timepiece, in a conventional manner. By way of non-limiting example, the tube 2 can be screwed, driven in or welded into the middle part of a timepiece, with the possible interposition of a seal.

The tube 2 has a generally cylindrical shape, with an X axis, and has three successive sections, a first section 4 of reduced diameter, intended to be housed in the caseband of the timepiece, a second section 6 of larger diameter than that of the first section 4, intended to be positioned against the outer wall of the caseband, and a third section 8 of intermediate diameter in which is formed an annular groove intended to house an annular seal 10.

The tube 2 has a central hole 12 defining a passage for a transmission member 14 longitudinal.

From its first end 16 intended to be housed in the case of the timepiece, towards its second end 18 intended to be positioned outside the case, the transmission member 14 has a first cylindrical section 20, a second central section 22 provided with four annular grooves in each of which is housed an annular seal 24, a third cylindrical section 26, a fourth section 28, short and having a polygonal envelope, and a fifth cylindrical section 30, slightly larger in diameter than the fourth section 28.

The first end 16 also has a polygonal casing and has a central threaded hole 32.

The second end 18 has a diameter greater than that of the fifth section 30 so as to define a shoulder.

The transmission member 14 is engaged through the tube 2 with the interposition, on the side intended to be positioned outside the box, of a first annular ring 34, then of an additional ring 36 intended to take support on the annular seal 10.

The annular ring 34 has slots arranged in the axial direction of the control member 1 and defining a first coupling member 38 capable of cooperating with a second coupling member 40 having the form of complementary teeth provided on the ring 36. The latter is intended to be positioned opposite the fourth section 28 of the transmission member 14 and has a central hole 42 of a shape complementary to that of the fourth section 28, in such a way that the transmission 14 and ring 36 are integral in rotation.

The annular ring 34 also has an internal shoulder 44 intended to cooperate with the second end 18 of the transmission member 14, so that the latter can limit the amplitude of the movements of the annular ring 34 in the sense of a distance from the middle.

[0038] Furthermore, a third coupling member 46 is engaged on the first end 16 of the transmission member 14, the latter having here the form of a return whose central hole 48 is polygonal, in such a way that the transmission member 14 can drive the third coupling member 46 in rotation when it is itself driven in rotation.

Finally, a screw 50 is screwed into the central threaded hole 32 of the transmission member 14 to assemble the third coupling member 46 to the transmission member 14, and ensure the retention of the latter at the inside of tube 2.

An examination of Figures 2a and 2b shows that the tightening of the screw 50, whose axial position, fixed, relative to the tube 2 is defined by the thickness of the third coupling member 46, exerts a traction on the transmission member 14 tending to move it towards the inside of the box. This movement ensures a slight compression of the annular seal 10, by the action of the fifth section 30 of the transmission member 14 on the ring 36. This construction ensures at the same time that the transmission member 14 has a fixed axial position with reference to tube 2.

The control member 1 further comprises a crown 52 whose peripheral wall is advantageously conical and knurled (preferably optional) to facilitate its handling. Crown 52 is hollow to define a housing 54 for annular ring 34, which is secured to crown 52 preferably by driving in, gluing, welding or brazing.

[0042] An elastic return member 56, here having the form of a helical spring, is also arranged in the crown 52 having one end positioned bearing against the second section 6 of the tube 2, so as to exert a force on the crown 52 tending to move it away from the tube 2, therefore from the case of the timepiece, as illustrated in FIG. 2a.

It is also seen in Figure 2a that the internal shoulder 44 of the annular ring 34 defines a rest surface cooperating with the second end 18 of the transmission member 14 to prevent the annular ring 34, and therefore the crown 52, to move further away from tube 2.

In addition, it also appears from Figures 2a and 2b that the internal shoulder 44, which is positioned opposite the fifth section 30 of the transmission member 14, has a lower height than that of the fifth section 30 , thus allowing relative axial movement between crown 52 and transmission member 14, more specifically, by exerting pressure on crown 52 to cause it to pass from the configuration illustrated in FIG. 2a to that illustrated in Figure 2b. When the pressure exerted on crown 52 in the direction of the timepiece case ceases, elastic return member 56 can exert its action again and push crown 52 back into its position illustrated in FIG. 2a.

Figures 3a and 3b show the same simplified partial perspective view of the control member 1 in the two respective configurations of Figures 2a and 2b.

It is apparent from these figures that before being able to be pressed in the direction of the case of the timepiece, the crown 52 must possibly be turned to position the slots of the annular ring 34 opposite the spaces separating the teeth of the ring 36. This situation is illustrated in Figure 3a. Once the crown 52 is oriented in an appropriate manner, it can be pressed against the action exerted by the elastic return member 56, to cause the slots to penetrate into the toothing of the ring 36, as illustrated in the Figure 3b.

In the configuration illustrated in Figure 3b, any rotation of the crown 52, in one direction or the other, causes a rotation of the ring 36, and therefore of the transmission member 14 via the polygonal connection that links these two components together. The third coupling member 46 is then also driven in the same direction as the crown 52, and it can thus actuate a watch mechanism with which it has a suitable kinematic connection.

In the present case, the third coupling member 46 having the form of a reference, it can be arranged directly in engagement with a ring gear (not shown) of the watch movement, for example. According to a preferred embodiment, provision can for example be made for such a toothed crown to be secured to a flange arranged at the periphery of the dial of the timepiece to indicate the duration of a dive. In this case, the orientation of the flange can be adjusted before the start of a dive to position an indication corresponding to the start of the dive opposite a current minute display hand, in a known manner.

Of course, the implementation of the present invention is not limited to the use of a return for the third coupling member 46, and the person skilled in the art will not encounter any particular difficulty in putting implement any other form of the third coupling member adapted to its own needs without departing from the scope of the invention as defined by the appended claims, for example a cylindrical part having an axial hole of square or hexagonal shape.

[0050] Alternatively, it is also possible to provide first and second coupling members shaped in such a way that only the rotations of the crown 52 in a predefined direction of rotation are transmitted to the third coupling member 46, the rotations of crown 52 in the opposite direction then having no effect. In this case, provision can for example be made for the first and second coupling members to comprise sawtooth teeth, like the sliding pinion and its complementary teeth in a manual winding mechanism.

It is apparent from the foregoing description that the control member 1 is secure since any rotation of the crown 52 when it is in its inactive position, as illustrated in Figures 2a and 3a, has no effect. Crown 52 must first be pressed by a user to be moved from its inactive position to its actuation position, in which the first and second coupling members are engaged, before its rotation can ensure actuation. of the corresponding watch mechanism. During this operation of axial displacement of crown 52, none of the seals of control member 1 undergo any particular stress, contrary to what happens in previous control members. As a result, all of the seals of the control member 1 are only subjected to one and only one type of stress during the relative rotation between the transmission member 14 and the tube 2, when the crown 52 is rotated while in its actuating position. The shape of the seals used here is perfectly adapted to this type of constraint which therefore does not pose any particular problem of wear which would be due to an undesired deformation of the seals. In addition, it is also noted that the construction of the control member 1 according to the invention, more particularly the shape and the reduced diameter of its transmission member 14, allows the use of annular seals having not only a small diameter, but also a small section. Such an advantage makes it possible to limit the overall size of the control member 1 and/or to increase the number of annular seals used as illustrated here, in order to reinforce the sealing of the corresponding timepiece case as much as possible. .

[0052] Figure 4 shows an exploded and simplified perspective view of a control member 100 for a diver's watch according to a second preferred embodiment of the invention. Figures 5a and 5b show the same simplified longitudinal sectional view of the control member 100, in two different configurations, and provide a better understanding of how the components illustrated in Figure 4 cooperate with each other.

The control member 100 comprises a tube 102 similar to the tube 2 of the first embodiment, which can also be driven or welded into a timepiece caseband, with the interposition of a metal seal.

The tube 102 has a generally cylindrical shape, with an X axis, and has three successive sections, a first section 104 of reduced diameter intended to be housed in the caseband of the timepiece, a second section 106 of diameter larger than that of the first section 104, intended to be positioned against the outer wall of the middle part, and a third section 108 of intermediate diameter in which an annular groove is formed intended to house an annular seal 110.

The tube 102 has a central hole 112 defining a passage for a transmission member 114 longitudinal.

From its first end 116 intended to be housed in the case of the timepiece, towards its second end 118 intended to be positioned outside the case, the transmission member 114 has a first section 122 provided with four annular grooves in each of which is housed an annular seal 124, a second cylindrical section 126, a third section 128, short, of diameter slightly smaller than that of the second section 126 and having a polygonal envelope, and a fourth cylindrical section 130, of slightly smaller diameter than the third section 128.

The second end 118 has a central threaded hole 132.

The first end 116 has a diameter greater than that of the tube 102 so as to define a stop.

The transmission member 114 is engaged through the tube 102 and is itself engaged, on the side intended to be positioned outside the box, through a first annular ring 134, and an additional ring 136 intended to rest on the annular seal 110.

The annular ring 134 has slots arranged in the axial direction of the control member 100 and defining a first coupling member 138 capable of cooperating with a second coupling member 140 having the form of complementary teeth provided on the ring 136. The latter is intended to be positioned facing the third section 128 of the transmission member 114 and has a central hole 142 of a shape complementary to that of the third section 128, in such a way that the transmission 114 and ring 136 are integral in rotation.

A third coupling member is formed directly, in one piece, with the first end 116 of the transmission member 114, the latter having the form of a transmission similar to that of the first embodiment.

A screw 150 is screwed into the central threaded hole 132 of the transmission member 114 to ensure the retention of the transmission member 114 inside the tube 2.

[0063] A sleeve 151 is interposed between the ring 136 and the head of the screw 150.

[0064] An examination of Figures 5a and 5b shows that the tightening of the screw 150 exerts a traction on the transmission member 114, tending to move it towards the outside of the box, and ensures a slight compression of the seal ring 110, via the sleeve 151 and the ring 136. This construction ensures at the same time that the transmission member 114 has a fixed axial position with reference to the tube 102, its first end 116 being arranged directly in abutment against tube 102.

The control member 100 further comprises a crown 152 whose peripheral wall is advantageously conical (preferably optional) to facilitate its handling. Crown 152 is hollow to define a housing 154 for annular ring 134, which is secured to crown 152 preferably by driving in, gluing, welding or brazing. Furthermore, crown 152 has a central hole 155 of a shape complementary to that of the head of screw 150, such that the latter is capable of being fully housed in crown 152.

[0066] An elastic return member 156, here having the form of a helical spring, is also arranged in the crown 152 having one end positioned bearing against the second section 106 of the tube 102, so as to exert a force on the crown 152 tending to move it away from the tube 102, therefore from the case of the timepiece, as illustrated in FIG. 5a. In this position, the head of screw 150 is advantageously located flush with the surface of crown 152.

It is also seen in Figures 5a and 5b that the central hole of the annular ring 134 has a diameter slightly smaller than that of the central hole 155 of the crown 152, such that the annular ring 134 defines a cooperating stop with the head of the screw 150 to limit the amplitude of the translation of the crown 152 when it moves away from the tube 102, under the effect of the action of the elastic return member 156.

The sleeve 151 has a diameter substantially smaller than that of the central hole of the annular ring 134, making it possible to ensure longitudinal guidance of the latter during the movements of the crown 152 in translation.

From the point of view of the operation of the control member 100, it is similar to that of the control member 1 according to the first embodiment and it will therefore not be described in detail. The only difference visible to the user lies in the fact that the head of the screw 150, fixed with reference to the tube 102, is partially situated outside the crown 152 when the latter is pressed to pass into its actuating position.

The control member 100 according to the second preferred embodiment has the same advantages as that according to the first embodiment, as already explained above.

[0071] On the basis of the foregoing description, it is possible to produce a control member that is sealed and secured against inadvertent manipulation, the sealing of which does not risk being compromised when it is manipulated in water, in particular during a dive, while having a construction that is not very complex and not bulky.

The implementation of the present invention is not limited to certain characteristics specifically described and/or illustrated, in particular the shape of the crown, of the three coupling members or of the elastic return member, or even the number of seals implemented in the two preferred embodiments which have been illustrated and described. Indeed, the person skilled in the art will not encounter any particular difficulty in adapting the present teaching to the implementation of a control member in accordance with the present invention, that is to say in which the crown is intended to be maintained in a position remote from the case of the corresponding timepiece by default, this remote position being its inactive position, and in which the seals arranged between the transmission member and the tube intended to be secured to the middle part are not subjected to dynamic stress when the crown is moved between its inactive position and its actuation position.

Claims (14)

1. Control member (1), for a timepiece, comprising a tube (2) with an X axis, intended to be attached to a timepiece case, a longitudinal transmission member (14) partially housed inside said tube (2) and intended to be driven in rotation, along said X axis, in order to be able to actuate a timepiece mechanism of the timepiece, at least one annular seal (24) interposed between said tube (2) and said transmission member (14), a crown (52) capable of being moved in translation, along said axis X, between an inactive position and an actuation position, in which it cooperates at least indirectly with said transmission member (14) to drive it in rotation in response to an appropriate user action, an elastic return member (56) arranged to act on said crown (52) and tend to move it away from said tube (2), characterized in that said transmission member (14) has a fixed longitudinal position predefined with reference to said tube (2), in that said inactive position of said crown (52) corresponds to that in which it is away from said tube (2) under the effect of the action of said elastic return member (56), said crown (52) being free from rotate with reference to said transmission member (14) in said inactive position, and in that said crown (52) carries a first coupling member (38) in rotation arranged in engagement, in said actuating position, with a second coupling member (40) integral in rotation with said transmission member (14 ). 2. Control member (1) according to claim 1, characterized in that said transmission member (14) has the shape of a rod in which is formed at least one annular groove (22) defining a housing for said annular seal (24). 3. Control member (1) according to claim 2, characterized in that said transmission member (14) comprises at least one second annular groove (22) defining a housing for a second annular seal (24) reinforcing the seal between said transmission member (14) and said tube (2), preferably at least second and third annular grooves (22) each of which defines a housing for an additional annular seal (24) reinforcing the seal between said transmission member (14 ) and said tube (2). 4. Control member (1) according to one of claims 1 to 3, characterized in that said transmission member (14) carries an abutment surface arranged to cooperate with a rest surface integral with said crown (52) for define said inactive position of the latter. 5. Control member (1) according to claim 4, characterized in that said rest surface is defined on an annular ring (34) arranged inside said crown (52), preferably being secured to the latter by driving, gluing, welding or brazing. 6. Control member (1) according to claim 5, characterized in that said first coupling member (38) is formed on said annular ring (34). 7. Control member (1) according to one of the preceding claims, characterized in that said second coupling member (40) is carried by a ring (36) having a polygonal central hole (42) cooperating with a section ( 28) connecting said transmission member (14), of complementary shape, such that any rotation of said ring (36) causes a corresponding rotation of said transmission member (14). 8. Control member (1) according to one of the preceding claims, characterized in that each of said first and second coupling members (38, 40) has teeth or knurling capable of cooperating with the other coupling member. coupling, the latter having complementary toothing or knurling. 9. Control member (1) according to one of the preceding claims, characterized in that said transmission member (14) carries, at its end (16) intended to be positioned inside the box, a third member coupling (46) intended to cooperate with a watch mechanism, said third coupling member (46) preferably comprising an X axis toothing. 10. Control member (1) according to claim 9, characterized in that said third coupling member (46) defines an axial stop of said transmission member (14) cooperating with said tube (2), to prevent any axial movement said transmission member (14) towards the outside of the box, and in that said transmission member (14) also carries a shoulder arranged to cooperate at least indirectly with said tube (2) so as to prevent any axial displacement of said transmission member (14) towards the inside of the box . 11. Control member (1) according to one of the preceding claims, characterized in that said elastic return member (56) is a helical spring whose first end is arranged to bear against said tube (2) and the second end is arranged to bear against said crown (52). 12. Timepiece box comprising a control member (1) according to one of claims 1 to 11. 13. Timepiece comprising a control member (1) according to one of claims 1 to 11. 14. Timepiece according to claim 13, characterized in that it comprises a rotating flange arranged in kinematic connection with said transmission member (14).