67results about "Clock driving mechanisms" patented technology

A friction system (100) for a horology movement including: an arbor (1) with a longitudinal axis (L) including: a first fixed element (2) mounted so as to rotate integrally with the arbor (1) and having a first support surface (40); a second fixed element (7) mounted so as to rotate integrally with the arbor (1); a toothed organ (3) mounted so as to rotate freely on the arbor (1) between the first fixed element (2) and the second fixed element (7). The toothed organ (3) is integral with a socket coupling (4) having a second support surface (42), and the second fixed element (7) includes a body (72) configured to rotate integrally with the arbor (1) and resilient brackets (71) protruding relative to the body (72) and extending towards the toothed organ, the resilient brackets (71) being resiliently pressed against the second support surface (42) of the socket coupling.

The invention relates to a horological movement comprising a striking mechanism of a watch including a vibrating element and a striking device of said vibrating element comprising a hammer fixed overhanging a structure of the horological movement by means of strips of a flexible guide, said strips being both arranged so as to extend in directions intersecting at a point materialising an instantaneous centre of rotation C disposed along an axis T tangent to the vibrating element.

Method for manufacturing watch components (100), comprising the steps of: (a) taking a wafer (10) comprising a support layer (20), a working layer (30) and a buried layer (40) formed of graphene and separating the working layer (30) from the support layer (20), (b) etching at least a part of the watch components into the working layer (30), (c) separating the working layer (30) from the support layer (20) and / or the buried layer (40) formed of graphene.

To provide a method for manufacturing watch components in batches.SOLUTION: A method for manufacturing watch components in batches comprises the steps of: a) providing a substrate 1 covered with a conductive priming layer 2; b) applying a layer of a photosensitive resin 3 to the conductive layer 2 of the surface of the substrate 1; c) irradiating a resin layer 3 through a mask 4 defining the outline of a batch of components 5, as well as a grid 7 and material bridges 6; d) dissolving non-irradiated areas 3b of a photosensitive resin layer 3 to reveal the conductive layer 2 of the substrate 1 in places and form a mold; e) conformal electro-galvanic deposition of a metal layer from the conductive layer 2; f) removing the photosensitive resin layer 3 and the substrate 1 to release one cluster of components thus formed; and g) releasing the batch of components from the one cluster.SELECTED DRAWING: Figure 1

This invention relates to a watch movement including a generator. The electromechanical watch movement (2) includes pointer-type time display devices (25, 26) and is provided with: at least one electromechanical motor for driving at least one indicator of the pointer-type time display; and a generator (20) including a rotor (20A) and associated with a balance wheel (22) coaxial with the time display device. The watch movement includes a first wheel (40) provided with a shaft (36) coaxial with the indicator, which in a primary embodiment is guided to rotate by a fixed cylindrical tube (30). At least one gear shaft (26) of the time display device is rotatably mounted around the fixed cylindrical tube (30). The first wheel (40) meshes with the rotor of the generator and is fixedly connected to the balance wheel on a side opposite the pointer-type time display, such that the balance wheel can rotate the rotor of the generator via the first wheel.

The invention relates to a method for manufacturing a barrel (1) for use in a timepiece, the barrel being arranged to pivot about a pivot axis (D) and comprising a flange portion (3) comprising a bearing surface (30) for bearing an inner ring of a spring, from which bearing surface a hook portion (2) projects to engage in an aperture in the inner ring, and the flange portion comprises an end face (20) serving as a bearing of the eyelet when winding the spring, the flange portion further comprising a groove (4) located upstream of the hook portion in the winding direction (S) of the spring for holding an end of the spring, the method comprising the following steps:-taking a bar; -turning the profile of the bar to form at least one cylindrical portion (13) comprising a vertical surface and a horizontal surface; -machining said cylindrical portion using a broaching tool by a plurality of reciprocating translational movements in the direction of the pivot axis of the strip shaft, to form a flange portion comprising a hook portion, a bearing surface and a groove.

This invention provides a method for manufacturing a barrel truss used in watchmaking. [Solution] The mainspring barrel 1 is arranged to pivot around a pivot D and includes a core 3 having a support surface 30 for the inner coil of the mainspring, from which a hook 2 protrudes to engage with an eyelet in the inner coil, the hook includes an end face that functions as a support for the eyelet when the mainspring is wound, and the core includes a relief 4 upstream of the hook in the winding direction of the mainspring for holding the end of the mainspring. The method is, • The process of preparing the rod material, - A process of tracing and turning a rod to form at least one cylindrical portion including a vertical surface and a horizontal surface, The process includes machining a cylindrical portion by performing several translational reciprocating motions in the true pivot direction to simultaneously form the core, including the hook, support surface, and relief, using a broaching tool.

The invention relates to a method for manufacturing a timepiece component (1) made of CuZn42 brass with a hardness of between 120 and 190 HV2, the method comprising the following steps: - providing a semifinished part that has been shaped by deformation, the semifinished part having a hardness of between 130 and 220 HV2 and being made from a CuZn42 brass material, - subjecting the semifinished part to a stress-relieving heat treatment at a temperature of between 170 and 230°C with a holding time at this temperature of between 20 minutes and 10 hours, preferably between 30 minutes and 5 hours, more preferably between 1 hour and 4 hours, - machining and finishing the semifinished part to create the timepiece component (1). The invention also relates to the timepiece component made from a CuZn42 brass.

An assembly (10) including a first and a second micromechanical part (11, 20) engaging with each other, the first part (11) including a plate (12) from which extends a connecting member (13) formed by a protruding body having at least one radial shoulder (130) forming a surface of revolution, and at least one axial shoulder (131) formed by a radially extending shouldering (132) and generating an allowance on the plate (12), the connecting member (13) on the first part (11) engaging in a pivot connection with a complementary connecting member (21) on the second part so that the second part is pressed against the axial (131) and radial (130) shoulders.

The present invention relates to a watch assembly (1) of a stud (81), in particular a barrel stud, on a blank (91), in particular a bridge or plate (91), the stud (81) comprising a first axis (A80) and a shoulder (82) extending at least in a radial direction of the first axis (A80), the blank (91) comprising a groove (92) along a second axis (A90), the stud and the blank being constructed and / or arranged to prevent translation of the stud along the first axis relative to the blank and to allow, during assembly, sliding of the stud in translation in the groove along the second axis (A90), perpendicular to the first axis.

The invention relates to a timepiece movement comprising a power reserve display device (10) and at least one barrel (11, 12), said timepiece movement being characterised in that said power reserve display device comprises:-a winding mechanism comprising a winding gear train (15),-a reduction gear train (16) which is connected to the barrel or one of the barrels (11; 12), a differential (14) arranged to kinematically connect the winding gear train (15) to the barrel (11) via a first input on the differential, the differential comprising a second input through which the differential is connected to the reduction gear train (16), and the differential comprising an output through which the reduction gear train (16) is connected to the barrel (11). The first and second inputs and outputs on the differential are coaxial,-a power reserve display module (17) engaged with an output on the differential (14).

To transmit high torque, to facilitate manufacture, and to provide easily manageable reproducibility of applied friction torque.SOLUTION: An arbor 1 having a longitudinal axis L, a first fixing element 2 having a first bearing surface mounted to rotate integrally with the arbor, and a second fixing element 7, a toothed part 3 being mounted to rotate freely on the arbor between the first fixing element and the second fixing element, the toothed piece is integral with a socket joint 4 having a second bearing surface 42, and the second fixing element comprises a body 72 and an elastic bracket 71 projecting from the body and extending towards the toothed piece, the elastic bracket being designed to be elastically pressed against the second bearing surface and to deform elastically under strain to form a kinematic linkage both between the first fixing element and the toothed piece, and between the second fixing element and the socket joint integral with the toothed piece, up to a predetermined friction torque.SELECTED DRAWING: Figure 2

The invention relates to a friction system (100) for a clock movement comprising: a shaft (1), with longitudinal axis (L), a first fixed element (2), mounted rotationally fixed on the shaft (1); said first fixed element (2) having a first bearing surface (40); a second fixed element (7) mounted rotationally fixed on the shaft (1); a toothed member (3), mounted freely in rotation on the shaft (1) between the first fixed element (2) and the second fixed element (7);characterized in that the toothed member (3) is integral with a sleeve (4) having a second bearing surface (42), and in that the second fixed element (7) comprises a body (72) configured to be rotationally integral with the shaft (1) and elastic tabs (71), projecting from the body (72) extending in the direction of the toothed member (3), said elastic tabs (71) being in elastic contact with said second bearing surface (42) of the sleeve (4), said elastic tabs (71) being arranged to deform elastically under stress from the second bearing surface (42) and to form a kinematic connection both between the first fixed element (2) and the toothed member (3) and between the second fixed element (7) and the sleeve (4) integral with the toothed member (3) up to a predetermined friction torque.

This invention provides a novel manufacturing method that enables the production of multi-colored ceramic components. [Solution] A method for manufacturing a multi-colored, one-piece ceramic part is provided. The method comprises the steps of: preparing a plurality of ceramic powders or cermet powders having different compositions and / or colors from each other, wherein the ceramic powders or cermet powders consist only of ceramic elements, carbides, nitrides, oxides, or mixtures thereof; depositing the powders in a mold; and sintering at a temperature between 600°C and 1800°C and 5N / mm². 2 From 250 N / mm 2 The manufacturing method includes the steps of: performing flash sintering or discharge plasma sintering at a sintering pressure between 10 minutes and 180 minutes over a total cycle time between 10 minutes and 180 minutes to form a multi-color ceramic component; and demolding the obtained multi-color ceramic component and finishing the multi-color ceramic component. Preferably, the ceramic component is a watch component used as an exterior component or in a movement.

The utility model discloses a movement of a gear transmission mechanism of a tourbillon stopwatch, relates to the technical field of movement transmission mechanisms of mechanical watches, and aims to solve the problems that the movement of the tourbillon stopwatch is large in gear transmission difficulty and large in energy loss. The barrel wheel component is connected with a center wheel component in a meshed mode, the center wheel component is connected with a third wheel component in a meshed mode, the second transmission component comprises a second transmission gear shaft, a second transmission piece and a second transmission wheel, the second transmission gear shaft is connected with the third wheel component in a meshed mode, and the second transmission piece is connected with the second transmission wheel in a meshed mode. The second transmission piece is in meshed connection with a second idle gear part, the second idle gear part is in meshed connection with a second setting gear part, and the second setting gear part is connected with a tourbillon mechanism. And the second transmission wheel is in meshed connection with a second metering idle gear assembly.

A timepiece movement includes a power reserve display device including a planetary mechanism. The invention relates to a timepiece movement comprising at least one barrel (11, 12) and a device (10) for displaying a power reserve, said device comprising: an upper chain mechanism comprising an upper chain train (22); a reduction gear train (15) that meshes with the barrel (11; 12) or one of the barrels; a differential gear (13) arranged to kinematically couple the upper sprocket train (22) and the barrel (11) via a first lead-in on the differential gear (13), the differential gear (13) comprising a second lead-in through which the differential gear is coupled to the reduction gear train (15) and comprising a lead-out; a power reserve display module (16) comprising a planetary mechanism (160) engaged with the lead-out on the differential gear (13).

To eliminate any risk of damage to a horological movement when watch hands are set.SOLUTION: A hand-setting device 10 for a watch includes a winding stem 11. The winding stem 11 is configured to occupy a hand-setting position in which the winding stem 11 is engaged with a hand-setting gear train 20 kinematically connected to a time display 30 and a 24-hour wheel 31. The 24-hour wheel 31 is engaged with a barrel 40 including a main spring 40 for supplying energy for displaying a time value, the barrel 40 includes a click mechanism 41, and the click mechanism 41 is configured to permit rotation of the barrel 40 through more than one revolution when the winding stem 11 is rotated in a first direction, and to limit rotation of the barrel 40 to an angular amplitude corresponding to less than one revolution when the winding stem 11 is rotated in a second direction.SELECTED DRAWING: Figure 1

A spring-driven device, particularly suitable for making mechanical watches, comprises: a circular gear wheel 3 installed inside the barrel and directly meshed with the internal circular ring gear 2 of the drum 1, to roll with a constant transmission ratio around a central axis orthogonal to a plane of rotation of the circular gear wheel 3 and substantially parallel to the central axis of the barrel, so that the second central axis B rotates around the axis of the barrel with a fixed eccentricity greater than zero; a shaft 4 constrained to the circular gear wheel 3, longitudinally directed along the central axis of rotation of the circular gear wheel 3; at least one rotatable rigid body 4 configured to rotate about the central axis of the barrel and connected to the circular gear wheel 3 so as to maintain it permanently in contact against the internal circular ring gear 2 and to be driven into rotation when the circular gear wheel 3 rolls in the internal circular ring gear 2; a spring 6 having a first end 7 connected to the drum 1 and a second end 8, opposite to the first, fixed directly to the tube 5 of the circular gear wheel 3 so as to rotate eccentrically around the central axis of the drum 1, so that the spring 6 is loaded or unloaded when the toothed wheel is rolled relative to the barrel, depending on the direction of rotation. A mechanical spring-driven watch is also disclosed.

The present invention discloses a watch assembly and belongs to the technical field of watch assemblies. The watch assembly includes a watch case; a case back mounted in the watch case; a minute hand dial mounted inside the watch case, where a surface of the minute hand dial is provided with a first indicating portion. According to the present invention, the case back is mounted to the watch case, and when structures inside the watch case need to be inspected and maintained, the case back can be conveniently opened. It should be noted that gear structures inside the watch case of the present invention are integrated into a detachable mounting assembly, the user can directly disassemble the detachable mounting assembly from the watch case, and then opens the detachable mounting assembly to inspect and maintain the gear structures inside the watch case.

The invention relates to a watch movement comprising a striking mechanism (10) of a watch having a vibrating element (11) and a striking device (120) of said vibrating element (11) comprising a hammer (121) fixed in cantilever to a structure of the watch movement by means of blades of a flexible guide (122), said blades (122) being arranged both so as to extend in intersecting directions to a point materializing an instantaneous center of rotation C disposed on an axis T tangent to the vibrating element (11).

The invention relates to a watch component (1) at least partially covered with a decorative coating (20) comprising at least one layer (20A) based on titanium and aluminum carbide stacked with at least one layer (20B) based on oxide allowing to obtain a decorative coating (20) with a black appearance with a reflectance of less than 5% on the human visible spectrum.

The invention relates to a flexible watch component for the oscillator mechanism of a watch movement, the component comprising at least one part made of a composite material (1), the composite material (1) comprising a matrix (2) and a multitude of nanotubes or nanowires (3) distributed in the matrix (2), the nanotubes or nanowires (3) being juxtaposed and arranged substantially parallel to an axis (A) substantially perpendicular to the plane (P) of the component, the matrix comprising a flexible filling material (4) for filling the interstices between the nanotubes or nanowires (3), the filling material (4) comprising at least in part a thermal compensation material whose coefficient of thermoelasticity (CTE) is of opposite sign to that of the other materials of the composite material (1).

A timepiece movement (1) comprising: - at least one power source (3, 3a, 3b); - a finishing gear train (5, 5a, 5b, 5c) kinematically linking the power source (3, 3a, 3b) to a regulating member (7); and - a display member (11) arranged to be driven by said power source. According to the invention, the movement (1) also comprises: - an actuator (9) that acts upon the transmission of rotation between the power source (3, 3a, 3b) and the display unit (11); and - a control device (13) for controlling the actuator (9), said control device (13) comprising wheels that all have a diameter smaller than or equal to 2.5 mm.

A system comprising at least one liquid, the system able to accommodate the thermal expansion / compression of such liquid over a given temperature range without leaking, bursting, and without the generation of bubbles, by adapting its liquid containing chamber volume to the ambient temperature.

The invention relates to a winding device (1), in particular for a mainspring barrel (2) equipped with a spring, comprising a ratchet (3) fixedly mounted on a rotating winding shaft, the rotating winding shaft being, for example, a winding shaft for the mainspring barrel (2), the rotation of which winds the mainspring barrel (2), and a winding gear train (4) meshing with the ratchet (3), the rotation of the winding gear train (4) causing the rotation of the ratchet (3) and that of the rotating winding shaft by applying a torque to the ratchet (3), characterized in that the ratchet is deformable so as to be able to disengage the ratchet (3) from the winding gear train (4). The invention also relates to a watch movement comprising such a winding device (1).