Abstract:
Timepiece lever for the transmission of motion between a transmitter wheel set and a receiver wheel set pivoting about distinct first and second axes of the lever which includes a pivoting plate carrying a transmission means remote from the first axis and of variable angular position relative to the first axis and which includes a control finger-piece or a transmission wheel set, the lever also including a frictional connection between a first friction surface of the transmitter wheel set and a second friction surface of the pivoting plate, the element carrying the first friction surface is elastic and the element carrying the second friction surface is elastic.
Abstract:
Perpetual calendar for a watch including a movement controlling the daily release, at the moment that the date changes, of a mechanism actuating a perpetual lever of this perpetual calendar, which perpetual calendar includes a daily countdown mechanism itself including a month-end adjustment mechanism, and a differential mechanism and a calendar mechanism arranged to determine the duration of the current month and updated at each current month change by this daily countdown mechanism, and this differential mechanism controlling, each day at the moment that the date changes, the motion of an additional adjustment cam comprised in this month-end adjustment mechanism, based on the current day of the month taken from this daily countdown mechanism, and also based on the current month duration taken from the calendar mechanism.
Abstract:
Clockwork movement for a wristwatch, comprising a kinematic chain including at least one belt (20, 21) for transmitting the movements and/or couples between at least two pulleys. The pulleys are held on the bottom plate or the bridges by ball bearings (151, 161, 171, 181). The movement is rewound by means of linear oscillating mass (14) charging four barrels (15, 16, 17, 18) through a couple distributor (40). The barrels are non-parallel to one another. The back cover is covered by inclined glasses (110, 120, 130) allowing the barrels, the linear oscillating mass and at least certain pulleys to be seen. The regulating organ (51) is removable.
Abstract:
An electronic timepiece with a solar cell is provided with a solar cell, a solar cell holding member, a light-transmissive character plate, a ground plate, and a ring-shaped calendar wheel. The solar cell includes a base material that is made of an insulating material, and a light-receiving unit that is arranged on a first surface of the base material. The solar cell holding member is fixedly attached to a second surface of the base material. The light-transmissive character plate is arranged on a timepiece front side of the solar cell. The ground plate is arranged on a back surface of the solar cell. The ring-shaped calendar wheel is disposed between the character plate and the ground plate. The solar cell holding member is arranged on a character plate side of the calendar wheel to position the calendar wheel.
Abstract:
An instantaneous driving mechanism for a timepiece movement is disclosed. The driving mechanism may include a mobile comprising a first wheel driven by a driving member of the timepiece movement and configured to drive rotation of a first cam of the mobile. The driving mechanism may also include a lever mounted pivotally on at least one frame element of the timepiece movement, the lever being configured to cooperate with the mobile in order to be moved and to cooperate with a counter of the timepiece movement to increment the counter by instantaneous pulses. The first cam may be coaxial with the first wheel and have a periphery of varying radius. In addition, the first cam may be configured to cooperate with a nose carried by a first arm of the lever and to move the first arm progressively away from the center of the mobile.
Abstract:
The process comprises the following steps: a) a first element (3) or a plurality of said first elements (3) is/are machined in a first silicon wafer (1) keeping said elements (3) joined together via material bridges (5); b) step a) is repeated with a second silicon wafer (2) in order to machine a second element (4), differing in shape from that of the first element (3), or a plurality of said second elements (4); c) the first and second elements (3, 4) or the first and second wafers (1, 2) are applied, face to face, with the aid of positioning means (6, 7); d) the assembly formed in step c) undergoes oxidation; and e) the parts (10) are separated form the wafers (1, 2). Micromechanical timepiece parts obtained according to the process.
Abstract:
A display plate for a solar cell device provided with a solar cell on the bottom surface side includes a light transmission substrate, a light transmission reflecting plate that is disposed on the bottom surface side of the light transmission substrate, and a decorative member that is disposed on the top surface side of the display plate. The light transmission substrate is provided with a reflecting surface on the bottom surface side or on the top and bottom surface sides of the light transmission substrate. The reflecting surface of the light transmission substrate is made of a prism reflecting surface.
Abstract:
An electronic timepiece, comprises a timing section to perform timing of time based on an oscillation signal; an electric wave receiving section to receive an electric wave; a voltage detecting section to detect a power source voltage supplied from a power source section; and a stop control section to stop a receiving function of the electric wave receiving section and continue a timing operation of the timing section when the voltage detecting section detects that the power source voltage becomes lower than a first level range, and then to stop the timing operation of the timing section when a warning period for urging a user to perform the power generation by the power generating section elapsed in a state where the power source voltage is lower than the first level range without changing to a lower level than a second level range lower than the first level range.
Abstract:
A solar-powered clock and thermometer having solar energy system for powering an electrical subsystem is disclosed. The electrical subsystem may include lighting elements for illuminating the clock and thermometer and the area around the clock and the thermometer in a decorative and functional manner.
Abstract:
A wave timepiece has an antenna disposed within or on the side of a case. The antenna has a magnetic core member comprised of magnetic foils that are superposed and stacked one over the other in the radial or transverse direction of the case and laminated together to form a laminated body, and a coil wound around the magnetic core member. Typically, the antenna is disposed in the case between a dial window and a rear cover, and the laminated body of magnetic foils is curved in conformity with the inner circumferential curved face of the case. The wave timepiece exhibits improved reception sensitivity due to the radial or transverse stacking of the magnetic foils.