AD CHANGE MECHANISM

Description

technical field

[0001] The field of the present invention relates to that of watchmaking, and more specifically to display mechanisms allowing two different pieces of information to be displayed on the same dial and / or with the same indicator and preferably with the same hand. Technological background

[0002] Mechanical watches, and in particular complicated watches, are built in such a way as to be able to display several indications such as the date, month, week, power reserve, time difference, etc., thus overloading the dial at the risk of losing readability.

[0003] Indeed, it is often difficult to read the information on the dial due to its clutter, not to mention the visual space occupied by the hands and their thickness, resulting in a thicker watch. Furthermore, adding an extra hand implies additional components and leads to a "pyramidal" construction, as it is known in the industry.

[0004] Document EP2 362 277 describes a time zone mechanism, arranged

[0005] for displaying, on demand, the time in a particular time zone, on the main hand of a timepiece comprising a movement with a finishing gear. Summary of the invention

[0006] The present invention aims to resolve these drawbacks totally or partially, and in particular, to display several pieces of information on a single needle and the choice of display is made at the user's request by means of a push button, for example, by means of a display mechanism comprising the characteristics of claim 1.

[0007] Thanks to this arrangement, it is possible to display, and in particular indicate, two pieces of information via a single display unit. Indeed, thanks to the present invention, it is possible to arrange several indications while maintaining a clean dial design, a simplified mechanism because fewer components are involved, and a thinner watch. One advantage of this arrangement is that two pieces of information do not need to share the same time base, and therefore can be displayed in a jumping or trailing manner.

[0008] According to one embodiment, said at least one first counter is a first display cam or a first display core.

[0009] According to one embodiment, said at least a second counter is a second display cam or a second display core.

[0010] According to one embodiment, said at least one clutch member is configured to rely on said at least one first counter and / or said at least one second counter so as to move said at least one display unit.

[0011] According to one embodiment, said at least one control element is a control wheel.

[0012] According to one embodiment, said at least one display mobile is a display wheel.

[0013] According to one embodiment, said at least one clutch member is connected by at least one mechanical link to said at least one display unit and to said at least one control member.

[0014] Thanks to this arrangement, the movement between said at least one first position and said at least one second position of said at least one clutch member is dependent on said at least one control member and said at least one display unit.

[0015] According to one embodiment, said at least one mechanical linkage includes a pivot linkage, in particular said at least one display mobile and / or said at least one control member is mounted or are mounted on said at least one clutch member, and preferably said at least one clutch member is pivotally mounted on said at least one display mobile and / or on said at least one control member.

[0016] According to one embodiment, said pivot joint is a stud or a pin.

[0017] Thanks to one of these arrangements, the movement between said at least one first position and said at least one second position of said at least one clutch member is achieved by pivoting.

[0018] According to one embodiment, said at least one display element and / or said at least one control element includes a groove configured to allow the sliding of said pivot link of said at least one clutch element, and preferably of said pin, and / or said at least one clutch element includes a groove configured to allow the sliding of said pivot link, and preferably of said pin, of said at least one display element and / or said at least one control element.

[0019] Thanks to this arrangement, the movement between said at least one first position and said at least one second position is achieved by pivoting and sliding said at least one clutch member.

[0020] According to one embodiment, said at least one clutch member comprises at least one actuating arm; said at least one control member is configured to move said at least one clutch member by means of said at least one actuating arm.

[0021] Thanks to this arrangement, said at least one actuating arm allows the movement of said at least one clutch member when said at least one actuating arm is actuated by said at least one control member.

[0022] According to one embodiment, the movement of said at least one control element causes the movement of said at least one clutch element via said at least one actuating arm.

[0023] Thanks to this arrangement, said at least one control element controls the movement of said at least one clutch element by said at least one control element.

[0024] According to one embodiment, said at least one actuating arm includes said mechanical linkage and / or said groove.

[0025] Thanks to this arrangement, said at least one control element controls the movement of said at least one actuating arm and consequently the movement of said at least one clutch element.

[0026] According to one embodiment, said at least one display moving part is configured to move with a first speed, said at least one control member is configured to move with a second speed, and said at least one clutch member is configured to move between said at least one first position and said at least one second position when said first speed of said at least one display moving part is different from said second speed of said at least one control member.

[0027] According to one embodiment, when said first speed of said at least one display unit is greater than said second speed of said at least one control member, said at least one clutch member moves from said at least one first position to said at least one second position.

[0028] According to one embodiment, when said first speed of said at least one display unit is lower than said second speed of said at least one control member, said at least one clutch member moves from said at least one second position to said at least one first position.

[0029] Thanks to one or the other of these preceding provisions, when the speeds of said at least one display unit and said at least one control unit are different, said at least one clutch unit is moved between said at least one first position and said at least one second position.

[0030] According to one embodiment, said at least one first counter includes at least one first stop configured to limit the mobility of said at least one clutch member when said at least one clutch member drives said at least one display moving part towards said at least one first position so as to display said first information and preferably to stop said at least one clutch member so that said at least one display moving part displays said first information.

[0031] According to one embodiment, said at least one second counter includes at least one second stop configured to limit the mobility of said at least one clutch member when said at least one clutch member drives said at least one display moving part towards said at least one second position so as to display said second information and preferably to stop said at least one clutch member so that said at least one display moving part displays said second information.

[0032] Thanks to this provision, said at least one display unit can indicate said first information when said at least one clutch element is against said at least one first stop of said at least one first counter or said second information when said at least one clutch element is against said at least one second stop of said at least one second counter.

[0033] According to one embodiment, said at least one first counter comprises at least one first bearing surface configured to bring said at least one clutch member into contact with said at least one first stop when said at least one clutch member is movable from said second position to said first position.

[0034] According to one embodiment, said at least one second counter comprises at least one second bearing surface configured to bring said at least one clutch member into contact with said at least one second stop when said at least one clutch member is movable from said first position to said second position.

[0035] According to one embodiment, said at least one clutch member moves said at least one display moving part towards said at least one first position when said at least one clutch member moves in support on said at least one first support surface.

[0036] According to one embodiment, said at least one clutch member moves said at least one display moving part to said at least one second position when said at least one clutch member moves in support on said at least one second support surface.

[0037] According to one embodiment, said at least a first bearing surface has at least a first dimension configured to allow said at least one clutch member at any point of contact to be brought to said at least a first stop.

[0038] According to one embodiment, said at least one first stop is a notch and / or a cavity on and / or in said at least one first bearing surface.

[0039] According to one embodiment, said at least a second bearing surface has at least a second dimension configured to allow said at least one clutch member at any point of contact to be brought to said at least a second stop.

[0040] According to one embodiment, said at least a second stop is a notch and / or a cavity on and / or in said at least a second bearing surface.

[0041] According to one embodiment, said at least a second bearing surface is outside or inside said at least a second counter.

[0042] According to one embodiment, said at least a first bearing surface is inside or outside said at least a first counter.

[0043] According to one embodiment, said at least a second support surface has a heart shape inside said at least a second counter.

[0044] According to one embodiment, said at least a first counter has a first cam shape.

[0045] According to one embodiment, said at least a second counter has a second cam shape.

[0046] By means of one or the other of these preceding provisions, said at least one clutch element can drive said at least one first counter or said at least one second counter when it is in contact with said at least one second stop and / or said at least one second stop respectively.

[0047] According to one embodiment, said at least one first counter and / or said at least one second counter comprises or comprise internal teeth and / or external teeth configured to be meshed and / or mesh and preferably so that said at least one first counter and / or said at least one second counter operates or operate in a gear.

[0048] Thanks to this provision, said at least one first counter and / or said at least one second counter can or can be engaged so as to indicate a first piece of information and / or a second piece of information respectively.

[0049] According to the invention, said at least one clutch element comprises a roller or a pad to bear or press, roll and / or slide on said at least one first bearing surface or said at least one second bearing surface.

[0050] Thanks to this arrangement, said at least one clutch component can drive said at least one display unit by rolling and / or sliding on said at least one first counter or on said at least one second counter.

[0051] According to one embodiment, said at least one clutch member includes a support arm configured to bear on or press against said at least one first bearing surface and / or against said at least one second bearing surface.

[0052] Thanks to this arrangement, said at least one clutch member can drive said at least one display unit by bearing on and preferably by engaging, rolling and / or sliding on said at least one first counter or on said at least one second counter.

[0053] According to one embodiment, said at least one support arm is flexible and / or elastically deformable.

[0054] Thanks to this arrangement, said at least one support arm can exert and / or transmit a force on said at least one first support surface and / or on said at least one second support surface, and to make it possible to take up the backlash of the teeth and pivoting of the elements in order to avoid the wobbling of the display needle.

[0055] According to one embodiment, said support arm includes said roller and / or said pad.

[0056] According to one embodiment, said support arm includes a dimension configured to allow said pinion, said roller and / or said pad to travel said at least a first bearing surface and / or said at least a second bearing surface until said at least a first stop and / or said at least a second stop.

[0057] Thanks to one or the other of these preceding provisions, said at least one clutch component can reach said at least one first stop and / or said at least one second stop at any point of contact with said at least one first counter and / or said at least one second counter.

[0058] According to one embodiment, said dimension of said support arm, said groove of said at least one control member and / or of said at least one clutch member, said at least one first dimension and / or said at least one second dimension are linked by their shape and preferably by a mathematical function so that at any point of contact said at least one clutch member is brought to said at least one first stop and / or to said at least one second stop.

[0059] Thanks to this arrangement, said at least one clutch component can reach said at least one first stop and / or said at least one second stop at any point of contact with said at least one first counter and / or said at least one second counter.

[0060] According to one embodiment, said at least one first counter and said at least one second counter are coplanar.

[0061] This arrangement saves space.

[0062] According to one embodiment, said at least one first counter, said at least one second counter, said at least one control element and / or said at least one display unit, are mounted movable on at least one axis.

[0063] According to one embodiment, said at least one first counter, said at least one second counter, said at least one control element and / or said at least one display unit, are mounted movable around said at least one axis.

[0064] Thanks to one or the other of these preceding provisions, the said display mechanism is adapted for rotary and / or repetitive movement.

[0065] According to one embodiment, said display mechanism includes a differential configured to be driven by and / or drive said at least one display moving part and / or said at least one control member so as to distribute the kinetic effort between said at least one display moving part and said at least one control member and preferably between said first speed of said at least one display moving part and said second speed of said at least one control member.

[0066] Thanks to this arrangement, the differential makes it possible not to move said at least one display mobile on the one hand when said at least one clutch member moves between said at least one first position and said at least one second position thanks to the force exerted by said at least one control member on said at least one clutch member, and on the other hand the energy of said force exerted by said at least one control member on said at least one clutch member is increased so as to allow said at least one clutch member to reach said at least one first stop or said at least one second stop.

[0067] The embodiments and variants mentioned above can be taken individually or in any technically possible combination.

[0068] The present invention will be well understood and its advantages will also become apparent in the light of the following description, given solely by way of non-limiting example and made with reference to the accompanying figures, in which identical reference signs correspond to structurally and / or functionally identical or similar elements. Brief description of the figures

[0069] The invention will be described in more detail below with reference to the accompanying drawings, given by way of non-limiting examples, in which: THE figures 1 & 2 present, according to one embodiment, at least a first counter 110 and at least a second counter 120 respectively; The figure 3 illustrates at least one control element 140 according to one embodiment; The figure 4 exposes at least one clutch component 130 and at least one mobile display 150according to one embodiment; The figure 5 shows an example of a differential 170, according to one embodiment; The figures 6 & 7 represent an example of a display mechanism 100 Top view and bottom view; and, The figure 8 illustrates one embodiment of said display mechanism implemented. Detailed description of the invention

[0070] The present invention proposes to display, and in particular to indicate, two pieces of information via a single display unit. 150, illustrated on the figure 4 , so as to be able to arrange several indications while maintaining a clean dial design.

[0071] To achieve this, the invention takes the form of a display mechanism 100 including at least one first counter 110, represented on the figure 1 , configured to be mobile and to display initial information and at least a second counter 120, represented on the figure 2, also configured to be mobile and also to indicate a second piece of information.

[0072] Typically, as depicted on the figure 1 said at least one first counter 110 may take the form of a first display cam 110 or a first display core 110, just as mentioned, at least a second counter 120, which can also be a second display cam 120 or a second display core 120, see for example figure 2 .

[0073] The said display mechanism 100 of the present invention also includes at least one display unit 150, typically a display wheel 150, configured to display said first information from said at least one first counter 110or to display said second information by at least one second counter 120 and allowing an indicator to indicate either said first information or said second information.

[0074] This change in indication is permitted by at least one clutch component. 130 which allows the movement of said at least one display unit 150 between at least one first position 131 so as to display said first information and at least a second position 132 so as to display said second piece of information.

[0075] Said at least one clutch component 130 is controlled by at least one control device 140, which can take the form of a control wheel 140, to be moved between said at least one first position 131 and said at least a second position 132. Indeed, said at least one clutch component 130is configured to be able to rely on said at least one first counter 110 or said at least a second counter 120 so as to move said at least one display mobile 150 until either the first piece of information or the second piece of information is displayed.

[0076] Indeed, according to the embodiment illustrated in the figure 1 said at least one first counter 110 may include at least one first support surface 112 configured to allow support for said at least one clutch component 130, or more specifically to allow the mobility of said at least one clutch component 130. Said at least one clutch component 130 can thus move said at least one display mobile 150 towards said at least a first position 131 when said at least one clutch component 130moves while supported on said at least one first support surface 112.

[0077] This mobility of said at least one clutch component 130 may be limited by the presence of at least one first stop 111, which may take the form of a notch and / or a cavity on and / or in said at least a first bearing surface 112, present on said at least one first counter 110 so that when said at least one clutch component 130 entails at least one mobile display 150 towards said at least a first position 131 to display said first information, said at least one first stop 111 stops said at least one clutch component 130 so that said at least one mobile display 150 displays the aforementioned first piece of information.

[0078] The configuration of said at least a second counter 120is roughly similar to that of the aforementioned at least one first counter 110, since said at least a second counter 120 also includes at least one second stop 121, which, depending on the embodiments, may be a notch and / or a cavity on and / or in said at least a second bearing surface 122, and at least a second support surface 122 configured to bring said at least one clutch component 130 at least a second stop in contact with said 121. Just like for the aforementioned at least one first counter 110, said at least one clutch component 130 can also move said at least one mobile display 150 towards said at least a second position 132 when said at least one clutch component 130 moves while supported on said at least a second support surface 122.

[0079] According to some embodiments, said at least one first bearing surface 112 presents more specifically at least one first dimension to allow said at least one clutch component 130 to be brought to said at least one first stop 111 at every point of contact with said at least one first bearing surface 112, just as mentioned above, at least a second support surface 122, which may also have at least one second dimension configured to allow at least one clutch component 130 at every point of contact to be brought to the said at least a second stop 121.

[0080] These bearing surfaces, that is to say, at least one first bearing surface 112 and said at least a second bearing surface 122 may be outside or inside said at least one first meter 110 and / or said at least a second counter 120respectively. However, it should be noted that despite the fact that said at least one first bearing surface 112 and said at least a second bearing surface 122 present a heart shape, whether on the outside or inside said at least one first counter 110 and / or said at least a second counter 120, said at least a first support surface 112 and at least a second support surface 122 may present other forms, and this independently.

[0081] Furthermore, still in relation to the aforementioned at least one first counter 110 and / or said at least a second counter 120, It may include, or they may include, depending on the embodiments, internal and / or external teeth configured to mesh and / or engage, and preferably so that said at least one first counter 110and / or said at least a second counter 120 functions or operate in a gear so as to indicate a first piece of information and / or a second piece of information respectively.

[0082] Thus, the mobility of said at least one clutch component 130 is limited by said at least a second stop 121 so that said at least one clutch component 130 may result in said at least one mobile display 150 towards said at least a second position 132 and therefore display said second information and preferably to stop said at least one clutch component 130 so that said at least one mobile display 150 displays the aforementioned second piece of information.

[0083] Therefore, said at least one mobile display 150 may indicate said first information when said at least one clutch component 130is abutting against said at least one first abutment 111 said at least one first counter 110 or the said second piece of information when the said at least one clutch component 130 is abutted against said at least a second abutment 121 said at least a second counter 120.

[0084] More precisely, the displacement of at least one clutch component 130 between said at least a first position 131 and said at least a second position 132 is achieved when said at least one mobile display 150 moves with a first speed and that said at least one control device 140 moves with a second speed different from said first speed of said at least one display mobile 150. Indeed, when said first speed of said at least one display mobile 150is greater than said second speed of said at least one control device 140, said at least one clutch component 130 moves from said at least one first position 131 towards said at least a second position 132, for example, and when said first speed of said at least one display mobile 150 is lower than said second speed of said at least one control device 140, said at least one clutch component 130 moves from said position at least one second 132 towards said at least a first position 131.

[0085] Indeed, since when the speeds of said at least one mobile display 150 and said at least one control unit 140 are different, the mechanical link 160, through the said plot 161 and of the said pin 162,is requested, which allows at least one clutch component to be checked 130 to move or be moved between said at least one first position 131 and said at least a second position 132.

[0086] Furthermore, for this purpose, the said display mechanism 100 includes a differential 170 configured to be driven by and / or drive said at least one display mobile 150 and / or said at least one control unit 140 so as to distribute the kinetic effort between said at least one display mobile 150 and said at least one control unit 140 and preferably between said first speed of said at least one mobile display 150 and said second speed said at least one control device 140 so that said at least one mobile display 150 not to be displaced, on the one hand when said at least one clutch component130 moves between said at least one first position 131 and said at least a second position 132 thanks to the force exerted by said at least one control device 140 on said at least one clutch component 130, and on the other hand the energy of said force exerted by said at least one control device 140 on said at least one clutch component 130 is increased so as to allow at least one clutch component 130 to reach said at least a first stop 111 or said at least a second stop 121.

[0087] As explained on the Figures 6 and 7 said at least one clutch component 130 is connected by at least one mechanical link 160 audit at least one mobile display 150 and audit at least one control body 140 so that the displacement between said at least one first position 131and said at least a second position 132 said at least one clutch component 130 either dependent on said at least one control organ 140 and said at least one display unit 150.

[0088] The said at least one mechanical link 160 maybe a pivot joint 161, and more specifically a plot 161 or a pin 162, including said at least one mobile display 150 and / or said at least one control unit 140 is mounted or are mounted on said at least one clutch component 130. It is also possible to consider that said component is at least one clutch 130 is mounted pivotally on said at least one display mobile 150 and / or on said at least one control device 140, so that the displacement between said at least one first position 131 and said at least a second position 132said at least one clutch component 130 is achieved by pivoting.

[0089] Furthermore, this pivoting can facilitate and / or save space if at least one first counter is mentioned. 110 and said at least a second counter 120 may be / may be coplanar. In the embodiment illustrated on the Figures 6 and 7 said at least one first counter 110, said at least a second counter 120, said at least one control unit 140 and / or said at least one mobile display 150, are mounted movably on at least one axis or even around said at least one axis so that said display mechanism 100 either suitable for rotary and / or repetitive motion.

[0090] Regarding this pivoting, it involves at least one mechanical link. 160 is a pin 162 allowing auditing at least one mobile display 150and audit at least one clutch component 130 to pivot relative to each other and in particular, said at least one clutch component 130 includes a pin 162 and said at least one mobile display 150 a housing to accommodate said pin 162, as shown by the method of implementation of the figure 4 , For example.

[0091] Furthermore, according to one embodiment, said at least one display mobile 150 and / or said at least one control unit 140 may include a groove 163 configured to allow the sliding of said pivot joint of said at least one clutch component 130 and / or said at least one clutch component 130 includes a groove 163 configured to allow sliding of said pivot joint of said at least one display mobile 150 and / or said at least one control unit 140.

[0092] In the implementation of the figure 3 only said at least one control unit 140 includes a groove 163 and said at least one mechanical link 160 is carried out by the said plot 161 which can slide into said groove 163 so as to effect the movement between said at least one first position 131 and said at least a second position 132 by pivoting and sliding said at least one clutch component 130.

[0093] It should also be noted that said at least one actuating arm 136 may include said mechanical link 160 and / or said groove 163, according to certain embodiments, so that said at least one control element 140 commands the movement of said at least one actuating arm 136 and consequently the displacement of said at least one clutch component 130.

[0094] Said at least one clutch component 130, described above, includes at least one actuating arm 136 and on the other hand at least one support arm 137. Depending on the embodiments, said at least one actuating arm 136 and said at least one supporting arm 137 can be found on either side of said plot 161.

[0095] Said at least one actuating arm 136 serves to move said at least one clutch component 130 via said pin 162 which may be located at the end of said at least one clutch component 130 and consequently, at the end of said at least one actuating arm 136, so that when said at least one actuating arm 136 is operated by said at least one control device 140, said at least one actuating arm 136moves said at least one clutch component 130 around the pivot joint 160.

[0096] As can be understood, the displacement of said at least one control organ 140 causes the displacement of at least one clutch component 130 through said at least one actuating arm 136.

[0097] As mentioned above, said at least one support arm 137 is located on the other side of said at least one clutch component 130 compared to the audit, at least one actuating arm 136. At the other end of said at least one clutch component 130, more precisely at the end of said at least one support arm 137 there is a pinion, a roller 139 and / or a skate, depending on the embodiments, to support or bear weight and preferably to engage, roll and / or slide on said at least one first support surface 112or said at least a second bearing surface 122, which allows for at least one clutch component 130 to be mobile when in contact with said at least one first counter 110 or said at least a second counter 120 and therefore entail at least one mobile display 150 by leaning on and preferably by engaging, rolling and / or sliding on said at least one first counter 110 or on said at least a second counter 120.

[0098] Furthermore, one of the characteristics of said at least one support arm 137 is that it is flexible and / or elastically deformable, which allows the latter to exert and / or transmit a force on said at least one first support surface 112 and / or on said at least a second bearing surface 122,and to allow for the compensation of backlash and pivoting of the elements in order to prevent wobbling of the display needle.

[0099] Furthermore, the said support arm 137 may include a dimension configured to allow said pinion, said roller 139 and / or said skate to travel over said at least one first support surface 112 and / or said at least a second bearing surface 122 up to at least one first stop 111 and / or said at least a second stop 121, so as to be able to reach at least one first stop 111 and / or said at least a second stop 121 at every point of contact with said at least one first counter 110 and / or said at least a second counter 120. Furthermore, according to one embodiment, the said dimension of said support arm 137, said groove 163 said at least one control unit140 and / or said at least one clutch component 130, said at least one first dimension and / or said at least one second dimension may be linked by their shape and preferably by a mathematical function so that at any point of contact said at least one clutch member 130 be brought to the said at least a first stop 111 and / or to said at least a second stop 121.

[0100] In the method of implementation of Figures 6 and 7 at least one initial counter 110, which can take the form of a first display core 110 or a first display cam 110 as shown by Figures 6 & 7 , or is linked to a first piece of information, for example the date, and at least a second counter 120, a second display cam 120 or a second display core 120 as illustrated by Figures 6 & 7is linked to a second piece of information, for example the second. These are at least a first counter 110 and at least a second counter 120 are coaxial and at the same height, that is to say, coincident in the same plane.

[0101] The said display mechanism 100 also includes at least one mobile display 150 comprising at least one clutch component 130 on which a roller pivots 139. Said at least one clutch component 130 is constrained on at least one of the said first counters 110 and at least a second counter 120 through at least one control device 140 which can act on a pin 162. In one of the display positions, the said pebble 139 is in a notch of said at least a second counter 120. Being driven by the movement (not shown), said at least a second counter 120thus entails at least one display device 150. The movement therefore displays the said second piece of information on at least one second counter 120.

[0102] In other words, in the embodiment presented on the figures 6 & 7 said at least one control unit 140 includes a groove 163, or more commonly called "loop", which, in order not to be misaligned with at least one clutch component 130, said at least one mobile display 150 drives at least one control element at the same speed 140 through an initial entry 171 of a differential 170. The second entrance 172 said differential 170 is related to a rake 191 who is feeling a display change cam 192. The rotational speed of said at least one control element 140 is the sum of the velocities of said first input 171and of the said second entry 172.

[0103] Indeed, for example, when the user commands the display change, a star 194. The said cams 192, 193 the aforementioned are hunted on the said star 194, They also rotate. The first degrees of rotation of said cams 192, 193 allow a brake to be released 195 which acts on said first entry 171 said differential 170. While the said brake 195 is maintained, a probe of said rake 191 will move to a notch on the said display change cam 192 thus activating the said second input 172 said differential 170. This last one, that is to say the said second entry 172 said differential 170 being maintained and an exit 173 said differential 170 being free, the rotation of said rake 191 will lead to the said exit 173said differential 170 and therefore said at least one clutch component 130.

[0104] Through the said pin 162 and of the said loop, at least one clutch component 130, a support arm 137 including by said at least one clutch component 130 will pivot until said roller 139 come into contact with said at least a second 120 counter. Said roller 139 will then roll until it reaches at least a second stop 121, which can take the form of a notch 121, said at least a second 120 counter, thus driving a display wheel. The system then displays said second information from said at least a second counter 120.

[0105] The arrangement of said cams 192, 193 allows the components to be set in motion in the following order: Passing of said first information to said at least one first counter 110 to the said second information of the said at least a second counter 120 : Installation and maintenance of said brake 195 then activation of said differential 170 ; Passing said second information to said at least a second counter 120 to the said first information of the said at least one first counter 110 : maintaining said brake 195 then activation of said differential 170 and release of said brake 195 ;

[0106] In another mode of use, the cam 193 can be removed. In this mode, the differential as well as the clutch assembly 130 are arranged so that the action of the entry 172 The differential turns outputs 173. 171 in the opposite direction. The natural movement of the elements causes the pin 162slides on the clutch mechanism's loop 130 in order to change the display. This mode of operation eliminates the need to adjust the cam sequence. 192, 193.

[0107] Since the displays are driven by movement and the effort required to switch from one display to another must be overcome by the user, the pair required, through the aforementioned initial information, at least one initial counter. 110 is low since only the friction in the gears needs to be overcome.

[0108] By modifying the cam's geometry, it's possible to deactivate the brake at the end of each display change. In conclusion, the system requires very little torque to operate. The resulting advantage is the ability to display the second on either of the two displays without disrupting the movement, for example.

[0109] Furthermore, depending on the embodiments, it is possible to have an additional support arm opposite said support arm 137 and this on a different level for example in order to add different information, so as to display 4 different information with the same needle while allowing the user to switch from one to the other.

[0110] To do this, additional cams must be added at the same level as the additional support arm, and the loop in said at least one control member must be modified. 140 and by adding another acting on the second arm and finally, increasing the number of cams by going from two to four stages on said cam 192 .

Claims

1. A display mechanism (100) comprising: - a first counter (110) configured to be mobile and to indicate a first item of information; the first counter (110) comprising a first support surface (112); - a second counter (120) configured to be mobile and to indicate a second item of information; the second counter (120) comprising a second support surface (122); said first counter (110) and said second counter (120) being coaxial and coplanar; - a display mobile (150) configured to display said first item of information from said first counter (110) or to display said second item of information from said second counter (120); - a coupling organ (130) comprising a runner (139) or a pad configured to bear on the first support surface (112) of the first counter (110) or on the second support surface (122) of the second counter (120); said coupling organ (130) being configured to move said display mobile (150) between a first position (131) so as to display said first item of information from the first counter (110) and a second position (132) so as to display said second item of information from the second counter; and, - a control organ (140) configured to move said coupling organ (130) between said at least one first position (131) and said at least one second position and to hold the coupling organ (130) against the first counter (110) or the second counter (112) in the first or second position (131, 132).

2. The display mechanism (100) according to claim 1, in which said at least one coupling organ (130) is connected by at least one mechanical connection (160) to said at least one display mobile (150) and to said at least one control organ (140).

3. The display mechanism (100) according to claim 2, in which said at least one mechanical connection (160) comprises a pivot connection comprising a stud (161) and said at least one coupling organ (130) is pivotally mounted on said at least one display mobile (150) and / or on said at least one control organ (140).

4. The display mechanism (100) according to claim 3, in which said at least one display mobile (150) or said at least one control organ (140) comprises a groove (163) configured to enable said stud (161) forming said pivot connection of said at least one coupling organ (130) to slide, or said at least one coupling organ (130) comprises a groove (163) configured to enable said stud (161) forming said pivot connection of said at least one display mobile (150) or of said at least one control organ (140) to slide.

5. The display mechanism (100) according to any of the preceding claims, in which said at least one coupling organ (130) comprises at least one actuating arm (136); said at least one control organ (140) is configured to move said at least one coupling organ (130) by means of said at least one actuating arm (136).

6. The display mechanism (100) according to claim 4 and claim 5, in which said at least one actuating arm (136) comprises said mechanical connection (160) or said groove (163).

7. The display mechanism (100) according to any of the preceding claims, in which said at least one display mobile (150) is configured to move with a first velocity, said at least one control organ (140) is configured to move with a second velocity and said at least one coupling organ (130) is configured to move between said at least one first position (131) and said at least one second position (132) when said first velocity of said at least one display mobile (150) is different from said second velocity of said at least one control organ (140).

8. The display mechanism (100) according to any of the preceding claims, in which: - said at least one first counter (110) comprises at least one first stop (111) configured to limit the mobility of said at least one coupling organ (130) when said at least one coupling organ (130) drives said at least one display mobile (150) to said at least one first position (131) so as to display said first item of information and preferably to stop said at least one coupling organ (130) so that said at least one display mobile (150) displays said first item of information; and / or, - said at least one second counter (120) comprises at least one second stop (121) configured to limit the mobility of said at least one coupling organ (130) when said at least one coupling organ (130) drives said at least one display mobile (150) to said at least one second position (132) so as to display said second item of information and preferably to stop said at least one coupling organ (130) so that said at least one display mobile (150) displays said second item of information.

9. The display mechanism (100) according to claim 8, in which: - said at least one first counter (110) comprises said at least one first bearing surface (112) configured to contact said at least one coupling organ (130) with said at least one first stop (111) when said at least one coupling organ (130) is mobile from said second position (132) to said first position (131); and / or, - said at least one second counter (120) comprises said at least one second bearing surface (122) configured to contact said at least one coupling organ (130) with said at least one second stop (121) when said at least one coupling organ (130) is mobile from said first position (131) to said second position (132).

10. The display mechanism (100) according to claim 9, in which said at least one coupling organ (130) comprises a bearing arm (137) configured to bear or to press on said at least one first bearing surface (112) and / or on said at least one second bearing surface (122).

11. The display mechanism (100) according to claim 10, in which said bearing arm (137) comprises said runner (139) and / or said pad.