Patent classifications
G04B13/02
NATURAL ESCAPEMENT FOR A HOROLOGICAL MOVEMENT AND HOROLOGICAL MOVEMENT COMPRISING SUCH AN ESCAPEMENT
A natural escapement (1) for a horological movement, including a first escapement wheel (8) driven by a second mobile (2), the first escapement wheel (8) in turn driving a second escapement wheel (12) arranged in the same plane as the first escapement wheel (8), an anchor (30) capable of pivoting around an anchor rod (32), the anchor (30) including means for temporarily locking the first escapement wheel (8) during a first alternation, and means for temporarily locking the second escapement wheel (12) during a second alternation, the anchor rod (32) being located outside an angle (α) less than 180° and delimited by two straight lines which pass through the axis (20) of the balance wheel (18) and through a pivot axis (6) of the first escapement wheel (8), and through the axis (20) of the balance wheel (18) and through a pivot axis (14) of the second escapement wheel (12).
Correction mechanism for a function of a movement of a timepiece
A correction mechanism for a function of a movement for a timepiece, notably a display function, including a corrector, and at least one clockwork part, notably a gear wheel, in which the clockwork part can be driven by a movement cooperating with a flexible transmission end of a movement.
Correction mechanism for a function of a movement of a timepiece
A correction mechanism for a function of a movement for a timepiece, notably a display function, including a corrector, and at least one clockwork part, notably a gear wheel, in which the clockwork part can be driven by a movement cooperating with a flexible transmission end of a movement.
MECHANICAL MOVEMENT WATCH WITH FORCE CONTROL MECHANISM
A watch (1) with a mechanical movement with force control mechanism, and of the jumping seconds type. The mechanism is disposed in a finishing train of the mechanical movement between an energy source and an escape wheel set (11) linked to an oscillator (14) in oscillation to drive the escape wheel set in the same direction of rotation. The escape wheel set meshes with a seconds wheel (2). A rotary locking element (7) is arranged to cooperate with a stop member (3) mechanically linked to the accumulation seconds wheel to lock in a stop mode or release in a jump mode the finishing train according to the angular position of the seconds wheel. A stop member spring (4) rotates the accumulation fixed seconds wheel and the escapement mechanism linked to the oscillator at each half oscillation of the oscillator in stop mode.
MECHANICAL MOVEMENT WATCH WITH FORCE CONTROL MECHANISM
A watch (1) with a mechanical movement with force control mechanism, and of the jumping seconds type. The mechanism is disposed in a finishing train of the mechanical movement between an energy source and an escape wheel set (11) linked to an oscillator (14) in oscillation to drive the escape wheel set in the same direction of rotation. The escape wheel set meshes with a seconds wheel (2). A rotary locking element (7) is arranged to cooperate with a stop member (3) mechanically linked to the accumulation seconds wheel to lock in a stop mode or release in a jump mode the finishing train according to the angular position of the seconds wheel. A stop member spring (4) rotates the accumulation fixed seconds wheel and the escapement mechanism linked to the oscillator at each half oscillation of the oscillator in stop mode.
TIME DIFFERENCE CORRECTION MECHANISM AND CLOCK WITH TIME DIFFERENCE CORRECTION MECHANISM
A time difference correction mechanism includes a cylinder index star wheel that includes teeth and is connected to an hour hand, a cylinder index gear that includes teeth and is connected to a minute hand, the cylinder index gear provided radially outward of the cylinder index star wheel on a same plane as the teeth, a cylinder index lever disposed in the cylinder index gear on a same plane as the cylinder index gear, and a cylinder index spring disposed in the cylinder index gear on the same plane as the cylinder index gear. The cylinder index lever is movable between an engaged position where a claw engages with at least one of the teeth and a disengaged position where the claw disengages with the at least one of the teeth . The cylinder index spring is configured to bias the cylinder index lever to the engaged position.
TIME DIFFERENCE CORRECTION MECHANISM AND CLOCK WITH TIME DIFFERENCE CORRECTION MECHANISM
A time difference correction mechanism includes a cylinder index star wheel that includes teeth and is connected to an hour hand, a cylinder index gear that includes teeth and is connected to a minute hand, the cylinder index gear provided radially outward of the cylinder index star wheel on a same plane as the teeth, a cylinder index lever disposed in the cylinder index gear on a same plane as the cylinder index gear, and a cylinder index spring disposed in the cylinder index gear on the same plane as the cylinder index gear. The cylinder index lever is movable between an engaged position where a claw engages with at least one of the teeth and a disengaged position where the claw disengages with the at least one of the teeth . The cylinder index spring is configured to bias the cylinder index lever to the engaged position.
POINTER DEVICE AND TIMEPIECE
A pointer device including a rotation body, a pointer shaft provided on the rotation body, a base member which rotatably supports the pointer shaft, and a spiral spring which has a substantially truncated conical shape and is arranged between the rotation body and the base member.
POINTER DEVICE AND TIMEPIECE
A pointer device including a rotation body, a pointer shaft provided on the rotation body, a base member which rotatably supports the pointer shaft, and a spiral spring which has a substantially truncated conical shape and is arranged between the rotation body and the base member.
Component for a timepiece movement
A pivot arbor for a timepiece movement includes a pivot made of a first non-magnetic metal material at at least one end in order to limit the sensitivity to magnetic fields. An outer surface of the pivot is coated with a first layer of a second material such as Ni, NiB, and/or NiP. The first layer of the second material is partially coated with a second layer of a third material selected from gold, silver, copper, platinum, rhodium, palladium and their alloys.