A diaphragm type deployment device including a first rigid armature and a second deformable armature, the first rigid armature and the second deformable armature being connected to one another, such that the second deformable armature switches from a first extended configuration to a second compact configuration, and vice versa, the device defining a first geometry when the second deformable armature is in the first extended configuration, and defining a second smaller geometry than the first geometry, when the second deformable armature is in the second compact configuration, the device extending substantially in the same plane when the second armature is in the first or in the second configuration, wherein at least a first part of the first rigid armature and at least a first part of the second deformable armature form a first one-piece assembly, preferably from the same material.

A diaphragm-type deployment device, particularly for horology, the device including a first rigid armature and a second deformable armature, the first rigid armature and the second deformable armature being connected to one another, so that the second deformable armature changes from a first extended configuration to a second compact configuration, and vice versa, the device defining a first geometry when the second deformable armature is in the first extended configuration, and defining a second geometry smaller than the first geometry, when the second deformable armature is in the second compact configuration, the device extending substantially in the same plane when the second armature is in the first or in the second configuration, wherein the second deformable armature includes first deformable portions and rigid portions assembled alternately, a first deformable portion connecting a rigid portion to a following rigid portion. The device also relates to a timepiece including such a display device.

A mechanical connection device, in particular a mechanical connection device for a timepiece or a mechanical transmission device for a timepiece, includes a first part having a first area with at least a first micro-cavity; and a second part having a second area with at least a second micro-cavity, the first and second areas being in contact with one another in a mechanical connection configuration.

A timepiece mechanism (100) for disengaging a gear train. The timepiece mechanism (100) includes a gear set (110), a disengagement member (120), a holding member (121) and a control member (130). The gear set (110) includes a first wheel (111), a second wheel (112) and an intermediate wheel (113) configured to be driven by or for driving the first wheel (111) and/or for driving the second wheel (112). The holding member (121) holds the first wheel (111) and/or the second wheel (112) when the disengagement member (120), controlled by the control member (130), moves the intermediate wheel (113) between an engaged position (101) and a disengaged position (102). Hence the timepiece mechanism (100) is held in position while disengaging the watch mechanism.

A coupling system for a chronograph mechanism is presented. The system can include an input wheel intended to be driven by a drive member; an output wheel intended to drive at least one display member; an intermediate wheel continuously kinematically connected to the input wheel or the output wheel, where the intermediate wheel changes between a coupled state where the input wheel is kinematically connected to the output wheel and an uncoupled state where the kinematic connection is broken. The system also includes a first friction wheel constrained to rotate with the intermediate wheel and a second friction wheel constrained to rotate with either the input wheel and the output wheel; a first safety wheel constrained to rotate with said intermediate wheel that includes a first set of safety teeth; and a second safety wheel constrained to rotate with the second wheel that includes a second set of safety teeth.

A timepiece mechanism (100) for disengaging a gear train. The timepiece mechanism (100) includes a gear set (110), a disengagement member (120), a holding member (121) and a control member (130). The gear set (110) includes a first wheel (111), a second wheel (112) and an intermediate wheel (113) configured to be driven by or for driving the first wheel (111) and/or for driving the second wheel (112). The holding member (121) holds the first wheel (111) and/or the second wheel (112) when the disengagement member (120), controlled by the control member (130), moves the intermediate wheel (113) between an engaged position (101) and a disengaged position (102). Hence the timepiece mechanism (100) is held in position while disengaging the watch mechanism.

A shock absorbing coupling device for a timepiece, includes a coupling wheel (2) able to take a coupled position and an uncoupled position, a coupling member (1) bearing the coupling wheel and a coupling cam (6) engaging with the coupling member (1) to define the coupled position and uncoupled position of the coupling wheel (2). The device also includes a locking member (12) rigidly attached to the coupling cam (6) and an intermediate member (9) controlled by the coupling member (1). The intermediate member (9) is intended to engage with the coupling member (1) and the locking member (12) to prevent or limit the movement of the coupling member (1) under the effect of a shock when the coupling wheel (2) is in the coupled position, to thus avoid the coupling wheel (2) leaving the coupled position.

A coupling system for a chronograph mechanism, said system comprising: an input wheel intended to be driven by a drive member; an output wheel intended to drive at least one display member; an intermediate wheel continuously kinematically connected to a first wheel chosen from said input wheel and said output wheel, said intermediate wheel being mounted so that it can change between a coupled state in which said input wheel is kinematically connected to said output wheel and an uncoupled state in which said kinematic connection is broken. According to the invention said system further includes: a first friction wheel constrained to rotate with said intermediate wheel and a second friction wheel constrained to rotate with a second wheel chosen from said input wheel and said output wheel, said friction wheels being at least partially coplanar and being adapted to transmit rotation between said intermediate wheel and said second wheel, or vice versa, when said system is in the coupled state; a first safety wheel constrained to rotate with said intermediate wheel and comprising a first set of safety teeth and a second safety wheel constrained to rotate with said second wheel and comprising a second set of safety teeth, said sets of safety teeth being conformed in order mutually to interpenetrate when said intermediate wheel (9) is in the coupled state.

A mechanical connection device, in particular a mechanical connection device for a timepiece or a mechanical transmission device for a timepiece, includes a first part having a first area with at least a first micro-cavity; and a second part having a second area with at least a second micro-cavity, the first and second areas being in contact with one another in a mechanical connection configuration.

A platform for displaying several mutually different horometric items of information, includes as many crowns as the horometric items of information to be displayed on the platform. Each of the crowns is arranged to receive an associated information support and is movable in rotation at a speed selected according to a horometric item of information displayed on the associated information support.