Abstract: A portable electronic item (100) including: a casing (10) having a compartment (11) for housing a removable electrical power source (2); a cover (20) including first coupling elements (23a) that cooperate with second coupling elements (23b) provided on the casing (10) to rigidly connect the cover (20) to the casing (10) by relative rotation. The cover (20) has an indentation (22) in an outer face (21) for receiving a tool for rotating the cover (20). A security device (30, 30?) is rigidly connected by adhesive bonding to the portable electronic item to at least partially cover the indentation (22) of the cover (20) of the compartment (11), so as to prevent the introduction of a tool for rotating the cover (20) and removing it from the casing (10).

Abstract: A portable electronic item (100) including: a casing (10) having a compartment (11) that houses an electrical power source (2); a compartment cover (20) including first coupling means (23a) that cooperates with second coupling means (23b) provided on the casing (10) to rigidly connect the cover (20) to the casing (10) by rotating the cover about a rotational axis formed by a central axis (X) of the cover (20). The cover (20) has an indentation (22) provided in an outer face (21) to receive a tool for rotating the cover (20). A security device (30, 30?) is rigidly connected by clipping onto the portable electronic item and is configured to at least partially cover the indentation (22) of the cover (20) of the compartment (11), so as to prevent the introduction of a tool for rotating the cover (20) and removing it from the casing (10).

Abstract: A method for producing a functional element on a timepiece component, including generating, with a control unit, at least one control command for a printing device intended to reproduce a reference digital graphical representation relating to the functional element; and constructing, with the printing device, at least one layer of at least one functional particle printed on the timepiece component so as to form the functional element.

Abstract: A regulating member (1) for a horological movement including an inertial mass, for example a balance (23), a balance spring (25), a balance bridge (22), and an index system (20) for adjusting the rate of the balance spring (25), the index system (20) including a stud-holder (31) including a first stud (34) on which the balance spring (25) is mounted. The balance bridge (33) includes a second stud on which the balance spring (25) is also mounted, the stud-holder (31) being rotatable relative to the balance bridge (33) in order to adjust the rate of the regulating member (1).

Abstract: A rotary wheel set system of a horological movement with a rotary wheel set a first and a second bearing for a first and a second pivot of the arbor of the rotary wheel set, the wheel set including a mass center in a position of its arbor, the first bearing including an endstone including a main body equipped with a conical cavity configured to receive the first pivot of the arbor of the rotary wheel set, the first pivot being capable of cooperating with the cavity of the endstone to rotate in the cavity, at least one contact zone between the first pivot and the cavity being generated, the normals of the contact zone forming a minimum contact angle relating to the plane perpendicular to the arbor of the pivot, the minimum contact angle being less than or equal to 30°, preferably less than or equal to arctan (½).

Abstract: A motor group including motor modules, each including a motor device driving a display wheel set, with a center pipe fixed on a plate, including a device for rotational guiding, about a main axis, of a display wheel set internal or external to the center pipe, this module includes an axial stop arranged to limit to a predetermined value the axial play in the direction of the main axis between the center pipe and the display wheel set, wherein a protruding surface of the center pipe or of the display wheel set, or an added axial stop, captively mounted between the center pipe and the display wheel set, or fixed to the display wheel set.

Abstract: A key for holding a dial foot, the key including a cylindrical head arranged at the end of a rod, the head and the rod being coaxial, the head including a flat and a collar extending over a portion of its periphery in an angular sector defined around the longitudinal axis of the rod, on either side of the flat. The collar includes a cross section with a frustoconical shape and, with respect to the periphery of the head, forms a minimum radial projection, substantially zero, at the ends of this angular sector and forms a maximum radial projection between these ends.

Abstract: A numerically controlled machine tool including a multi-spindle turret provided with a body extending along an axis A-A between a first end by which it is fastened to a frame of the machine tool and a second end at which it comprises a rotatable head, the head comprising at least two toolholding spindles, each intended to engagingly receive a cutting tool, the spindles occupying, depending on the angular position of the head, a working position in which they are intended to carry out a machining operation on a workpiece held in position in a fixture, or a standby position in which they are withdrawn from said workpiece, each of said spindles being configured to be controlled independently of the other in order to immobilise or rotatably drive the tool that it carries, regardless of the position occupied thereby.

Abstract: A photovoltaic cell (1) including a first front collector layer (4), an amorphous silicon layer (6) on the first layer (4) and a second conductive layer (8) on the amorphous silicon layer (6). Electrical connection of the second conductive layer (8) to the first layer (4) is made through the amorphous silicon layer (6) at the periphery of the photovoltaic cell, the electrically conductive layer (8) comprising a positive peripheral bus (8?), which is connected to the TCO first layer (4) and to at least one positive connection terminal at one end of the positive peripheral bus, and a negative peripheral bus, which is connected to a negative connection terminal, and the positive and negative peripheral buses being asymmetrical relative to one another, with the positive peripheral bus being longer than the negative peripheral bus.

Abstract: A navigation instrument including an orientation angle calculation unit, in particular the first and second orientation angles, wherein the orientation angle calculation unit is configured to be able to determine the first and second orientation angles in a given order and also in reverse order; and wherein the calculation unit is arranged to be able to choose between said given order and said reverse order, to calculate the first and second orientation angles, based on a comparison between an indicator of a risk of error, quantifying a risk of instability of said unit during the determination of the first and second orientation angles, and a predetermined threshold.

Abstract: A method for setting an electronic watch including a near-field communication module and a microcontroller configured to exchange electric signals with this module, the method including: establishing a near-field connection between the electronic appliance and the watch; verifying, by way of the microcontroller of the electronic appliance, the accuracy of a datum indicating the clock state of the watch; sending, to the near-field communication module of the watch, by way of the near-field communication device and when instructed to do so by the microcontroller of the electronic appliance, at least one watch setting instruction when the clock state datum is inaccurate; processing said at least one instruction received by means of the microcontroller of the watch, in order to generate watch setting parameters; and configuring the watch when instructed to do so by the microcontroller of the watch, according to the setting parameters generated.

Abstract: A tool post including a body extending according to an axis A-A, the latter including, at one of its ends, a base for fastening to a numerically-controlled machine tool and, at the other end, a head movable in rotation, the head including at least two tool-holder spindles, each being intended to receive a cutting tool in engagement, the spindles occupying, depending on the angular position of the head, a working position in which they are intended to carry out a machining operation on a workpiece held in position in a fitting or a standby position in which they are withdrawn from the workpiece, each of the spindles being configured to be controlled independently of the other in order to immobilise or drive in rotation the cutting tool carried thereby, irrespective of the position it occupies.

Abstract: A display mechanism for a watch and a watch including the display mechanism, which includes a display for displaying information, a first and second mobile elements and a support, so that when the first mobile element moves with a first primary speed, the second mobile element moves into a first position so as to cover the display and when the first mobile element moves with a first secondary speed, the second mobile element moves into a second position so as to expose the display. Thus, the display can be exposed which allows to maximize the display surface when information is present on the display.

Abstract: A watch is includes a case including at least one pair of horns, a horological movement, and a near field communication module configured to perform contactless electronic transactions. The near field communication module may be connected to the horological movement by being arranged between horns of the at least one pair of horns.

Abstract: A regulating member (1) for a horological movement, including an inertial mass, for example a balance (23), a balance spring (25) including a ribbon (2) wound in a plurality of coils, the regulating member including an actuation system for adjusting the rate of the regulating member (1), the actuation system including an actuator (30) mechanically connected to the balance spring (25), the displacement of the actuator making it possible to modify the rate of the regulating member, the actuator (30) including a hook (39) engaged with the balance spring (25), and the displacement of the actuator (30) making it possible to modify the stiffness of the balance spring (25).

Abstract: A regulating member (1) for a horological movement, including an inertial mass, for example a balance (23), a balance spring (25) including a wound ribbon (2), and an adjustor for adjusting the stiffness of the balance spring, the regulating member (1) including a system for actuating the adjustor, the actuation system including an actuator (30) having a movable part (37) mechanically connected to the adjustor, and a regulator for regulating the actuator (30), the regulator having a pivoting control lever (45) with a pivot arm (69) and a support arm (71) cooperating with the movable part (37) of the actuator (30) in order to displace it mechanically.

Abstract: A regulating member (1) for a horological movement, including an inertial mass, for example a balance (23), a balance spring (25) including a wound ribbon (2) and an adjustor for adjusting the stiffness of the balance spring provided with a flexible element (5) arranged in series with the wound ribbon (2), the adjustor including a prestressing device (6) for applying a variable force or torque to the flexible element (5) in order to adjust the rate of the regulating member (1), the regulating member (1) including a system for actuating the prestressing device (6), the actuation system including an actuator (30) mechanically connected to the prestressing device (6), the actuator (30) being configured to perform, at least in part, a substantially linear, preferably rectilinear, displacement, in order to actuate the prestressing device.

Abstract: An assembly for the removable attachment of a balance spring of a horological movement including a balance bridge, the assembly including the balance spring, a means of retaining the balance spring, and a removable locking part. The balance spring includes a coil winding which extends between a first free end of an inner first coil and a second free end of an outer last coil, the second free end including an attachment means in which the retaining means is engaged to ensure the removable attachment of the balance spring by its outer last coil. The attachment means is dimensioned so that, in a rest position, the balance spring is not in contact with the retaining means engaged in this attachment means, the locking part for the removable attachment of the second free end being engaged on the retaining means to lock the attachment means.

Abstract: An actuation system (20) for a horological movement, configured to displace, at least in part, a part between a plurality of positions, the actuation system (20) including a micromechanical actuator (30) intended to be engaged with said part, the micromechanical actuator (30) including a part (33) intended to be mounted such that it remains stationary, for example with respect to a plate of the horological movement, and a part (37) that is movable with respect to the stationary part (33), the actuator (30) including a spring part (35) connecting the movable part (37) to the stationary part (33), the spring part (35) carrying the movable part (37), the actuation system further including setting means cooperating with the actuator (30) so as to be able to displace the movable part (37) of the actuator (30) between a plurality of positions, the spring part (35) including a guide with flexible blades.

Abstract: A display element (1) intended to be fitted to a timepiece, including a body (2) provided with a portion (4) including an assembly area (5) configured to receive an insert (3) by embedding, the embeddable insert (3) being provided with a shaft hole (13) configured to adjust the display element (1) on a drive shaft, the body (2) including a portion (4) made of a material having the property of softening, in which the insert (3) is embedded by melting, the insert (3) including a peripheral wall (6) provided with a patterned outer surface (7a) for connection with the portion (4) of the body (2) of the display element (1), the outer surface (7a) being configured to ensure mechanical anchoring of the insert (3) in the portion (4), the peripheral wall (6) projecting, on either side respectively, from opposite faces of the portion (4) of the body (2).