Abrégé

A device for assembling and adjusting a balance spring, including a base joined to a balance bridge with an adjustable angular orientation, and having a bearing surface and a bearing plate adjacent to the bearing surface, both defining a service position of the end turn of the balance spring. A first arm extends from the base and bears a locking member for the end turn, the locking member being designed to keep the terminal coil in abutment against the bearing surface. A second arm of the device extends from the base and bears a shoe that is able to be arranged at a predefined distance from the bearing surface so as to cooperate with the end turn. A movable control member is able to act on the second arm in order to deform it elastically and move the shoe with respect to the base in order to free the end turn.

Classes IPC  ?

• G04B 17/32 - Pièces constitutives ou éléments structurels, p. ex. virole, piton
• G04B 18/06 - Réglage du battement du pendule, du balancier ou des organes similaires, p. ex. mise au repère par déplacement de la virole ou du piton d'un spiral

Abrégé

A device (12) for assembling and adjusting a balance spring, comprising a base (14) joined to a balance bridge (6) with an adjustable angular orientation, and comprising a bearing surface (40) and a bearing plate (42) adjacent to the bearing surface (40), both defining a service position of the end turn (8) of the balance spring (1). A first arm (20) extends from the base (14) and bears a locking member (52) for the end turn (8), said locking member (52) being designed to keep the latter in abutment against the bearing surface (40). The device (12) comprises a second arm (22) that extends from the base (14) and bears a shoe (78) that is able to be arranged at a predefined distance from the bearing surface (40) so as to cooperate with the end turn (8). A movable control member (84) is able to act on the second arm (22) in order to deform it elastically and move the shoe (78) with respect to the base (14) in order to free the end turn (8).

Classes IPC  ?

• G04B 18/06 - Réglage du battement du pendule, du balancier ou des organes similaires, p. ex. mise au repère par déplacement de la virole ou du piton d'un spiral
• G04B 17/32 - Pièces constitutives ou éléments structurels, p. ex. virole, piton

Abrégé

The invention relates to a clockwork movement indicating mechanism that acts in response to a request for information, comprising a control lever (6, 26, 46) for controlling an indicating member (20, 40, 44, 60) and which can co-operate with the latter in order to indicate information in response to a pre-defined trigger event. The control lever (6, 26, 46) is mobile so that it can occupy a plurality of indicating positions, between a rest position and a maximum indicating position, and, in the rest position, the lever co-operates with a rest surface (104, 204) which can be retracted in response to the trigger event. The control lever is intended to co-operate with a first cam (8, 28, 47) having a movement representative of the information and a periphery of variable radius, representative of the information, of which a minimum radius portion is associated with the maximum indicating position. In the rest position, the control lever co-operates with a second cam (10, 30, 48), on the periphery of which the rest surface is arranged. The second cam is intended to be driven by a gear-train (64) in response to the trigger event in order to have a decreasing radius at the control lever and to allow the latter to co-operate with the first cam so as to occupy an indicating position.

Classes IPC  ?

• G04B 19/02 - Engrenages intermédiaires entre les rouages et les aiguilles
• G04B 21/04 - Roues horairesCrémaillères ou râteauxLimaçons ou mécanismes de commande similaires
• G04B 21/12 - Montres ou horloges à répétition

Abrégé

The invention relates to a clockwork movement mechanism for controlling a barrel (1), of the all or nothing type, said barrel (1) comprising a spring housed in a drum (2) to which it is rigidly connected by means of a first end, the second end thereof being rigidly connected to a barrel arbor (4), the mechanism comprising a winding train (18) arranged to rotate the barrel arbor (4) in order to wind the spring. The mechanism is characterised in that it also comprises a first mobile (24) connected to the winding train (18), a second mobile (2) controlled by the drum (2), a locking lever (10) arranged to pivot between first and second positions, associated respectively with the locking of the barrel arbor (4) and the locking of the drum (2), a mobile control member (30) arranged in order alternatively to position the locking lever (10) in one or other of its positions, the first and second mobiles being arranged to act alternately on the control member (30) in order to modify the state of the locking lever in an alternating manner when the winding train (18) is actuated and the barrel arbor (4) has travelled through a pre-defined angle and when the drum (2) has travelled through the same angle after having been released, in order to lock the latter and allow the later winding of the spring of the barrel.

Classes IPC  ?

• G04B 1/16 - BarilletsArbresArbres de barillets
• G04B 23/02 - Réveils

Abrégé

The present invention concerns a mechanism for transmitting axial and rotational movements between two portions (4, 12) of a rod with offset axes, for a clock movement (1), whereof a first portion (4) is intended to be housed inside the clock movement, being arranged to be mobile between at least first and second axial positions, and, the second portion (12) is intended to carry a ring gear at the free end thereof, outside the clock movement. The mechanism comprises a device (9, 10, 16) for transmitting axial movements between the first and second portions, and a kinematic link between a first gear (8) integral in rotation with the first portion (4) and a second gear (16) integral in rotation with the second portion (12). The mechanism further comprises a tab (18), intended to secure the second portion of the rod on the clock movement and cooperating with same to ensure the positioning thereof between at least first and second axial positions, the tab being arranged to cooperate with the second gear (16) in such a way as to lock it to the axial movements of the second portion (12) of the rod, at least in the direction leading from the inside of the clock movement (1) to the outside.

Classes IPC  ?

• G04B 37/06 - Formation du passage de la tige de remontoir dans le boîtierTiges de remontoir brisées

Abrégé

The invention relates to a clock movement including a constant force device, said clock movement comprising a spiral spring (18) and a gear-train having a first kinematic chain (4, 5, 6, 8) arranged so as to connect a main power source (1) with a first end of the spiral spring, and a second kinematic chain (10, 12, 13, 14, 16) for connecting a time base to a second end of the spiral spring. The movement is characterised in that either one of the first and second kinematic chains includes an adjustment mobile (9) comprising first and second members (10, 20) connected together by a friction so that the rotation of one of the members drives the other one during the routine operation of the clock movement, and in that one of said members is an adjustment member (20) having at least one bearing surface (41) arranged in such a manner that it is possible to control the latter so as to rotate the adjustment member without rotating the other member (10), due to the friction, in order to adjust the load state of the spiral spring.

Classes IPC  ?

• G04B 1/22 - Compensation des variations de la force motrice du ressort moteur

Abrégé

The invention relates to a mechanism for driving two circular display members (12, 13), the two display members (12, 13) being arranged coaxially and rotating in opposite directions at absolutely equal angular speeds. The present invention also relates to a timepiece using the above mechanism, wherein each of the display members (12, 13) includes N arms (12a, 12b, 12c, 13a, 13b, 13c). The timepiece further includes a dial (10) at least partially solid and arranged above the mechanism and the display members, and has an aperture (11) cut therein that defines an opening with a 180°/N angle having the centre thereof coinciding with the rotation axis of the display members (12, 13). The display members (12, 13) are arranged so that only one of the arms (12a, 12b, 12c, 13a, 13b, 13c) of the above two display members (12, 13) is always visible through said aperture (11). One of the arms (12a, 12b, 12c, 13a, 13b, 13c) of the display member (12, 13) moves across the entire aperture (11) in one movement direction until the same reaches the edge of the aperture (11), then one of the arms (12a, 12b, 12c, 13a, 13b, 13c) of the other display member (12, 13) moves across the entire aperture (11) in the other movement direction.

Classes IPC  ?

• G04B 19/08 - Disposition géométrique des divisions

Abrégé

The present invention relates to a link (1, 100, 200) designed to be connected to other identical links to form a chain for a horological movement. The latter has a base (2) with a main direction and two arms (3, 4) connected to the base by a first one of their respective ends (5), from which base they each extend in directions perpendicular to the main direction as far as their second free ends (11). The latter are separated by a distance greater than the distance between the first ends. The link also has regions of increased thickness (10) extending on either side of the respective first ends (5), approximately coplanar with the base (2) and separated from each other by a distance approximately equal to the distance between the second free ends (11), each of the latter ends having a hole (17) designed to engage with the corresponding region of increased thickness of an adjacent link. Moreover, the arms (3, 4) can undergo elastic deformation to allow assembly to an adjacent link by insertion of the regions of increased thickness (10) of the adjacent link into the holes of the corresponding second free ends.

Classes IPC  ?

• G04B 1/08 - PoidsChaînesRoues de chaînesArbres pour roues de chaînes
• G04B 13/02 - RouesPignonsAxesPivots
• F16G 13/06 - Chaînes de transmission dont les maillons sont reliés par des axes parallèles, avec ou sans rouleaux

Abrégé

The present invention concerns a timepiece movement and the corresponding timepiece, comprising a frame (1) supporting a drive element, a time base and drive trains (9) pivotably mounted on the frame and arranged so as to drive at least one display train (13) intended to carry an element (23) displaying information, such as the time. The movement also comprises a fixed gear (22), firmly attached to the frame, with which a toothed element (14) of the display train is arranged to mesh, and a drive element (11) having first and second kinematic links, respectively, with one of the drive trains and with the toothed element so as to drive the latter in translation in a first direction along the fixed gear. Preferably, the drive element is embodied in the form of a deformable element, such as a belt, and the movement also comprises a retrograde mechanism (2, 3, 18) for driving the toothed element rapidly in the opposite direction by means of the drive element. As a result of this structure, the display element has a novel path (24) in operation, this path being mainly a function of the shape of the gear fixed to the frame.

Classes IPC  ?

• G04B 19/04 - AiguillesDisques à signe indicateur unique ou similaires
• G04B 19/08 - Disposition géométrique des divisions
• G04B 19/20 - Indication au moyen de bandes, de tambours, de disques ou de cartes numérotés