FIELD: physics, watch.
SUBSTANCE: invention relates to chronology, to mechanical calendar mechanisms and methods of indication of moon phases in time measurement devices, for precise and realistic displaying of moon phases in mechanical watch. To create a compact, with a simple design, precise and reliable, cheap in production and suitable for installation practically in any analogue wrist or pocket watch of compact mechanical display of moon phases with the alternating geometrically exact flat visual images of lunar phases the diurnal motion of the watch mechanism is converted into the motion of fractional with reference to solar day of the lunar cycle, and then the motion of fractional with reference to solar day of the lunar cycle is converted in multiple to integers the discrete motion of the device of indication of lunar phases with a possibility of discrete indication of the respective lunar phases on the dial. Meanwhile the discrete indication of lunar phases on the dial is executed by means of sequentially conjugate with the watch mechanism of the device of transformation of the motion of the watch mechanism into the lunar cycle motion, of the device of transformation of the lunar cycle motion into the discrete motion of the device of indication of lunar phases and of the device of discrete indication of lunar phases. The watch with indication of lunar phases on the dial containing the watch mechanism and a device of indication of lunar phases on the dial, contain series-conjugate with the clock mechanism the device of transformation of the a clock mechanism motion into the motion fractional with reference to solar day of the lunar cycle, the device of transformation of the motion fractional with reference to solar day of the lunar cycle into multiple integer discrete motion of the device of indication of lunar phases and device of discrete indication of lunar phases and are designed with a possibility of discrete indication of lunar phases in preferred amount 8, 12, 16, 20, 24 or 28 during the lunar cycle.
EFFECT: creation of compact, with simple design, precise and reliable in operation, cheap in production and suitable for installation device.
21 cl, 14 dwg
