Time-display instant switching mechanism

Abstract

The invention relates to a time-display instant switching mechanism which comprises a unit escapement fork, a second wheel, a unit case, a unit escapement wheel, a unit hair spring and a unit gear. The unit case, the unit escapement wheel, the unit hair spring and the unit gear are coaxially arranged, the unit case and the unit escapement wheel are coaxially connected, a gap is reserved between a revolving shaft of the unit gear and a revolving shaft of the unit case, one end of the unit hair spring is connected with the unit escapement wheel, the other end of the unit hair spring is connected with the unit gear, the unit escapement fork is arranged beside the unit escapement wheel, and the second wheel is meshed with a second wheel tooth on a watch and with the unit gear, and is arranged on a poking nail capable of contacting the unit escapement fork during the rotation. Since the hair spring is used for storing energy and combined with an escapement mechanism to achieve instant switching of time display, energy transferred to a balance wheel by a gear driving system is guaranteed against reduction, and travel time precision of a mechanical timekeeper is increased. The time-display instant switching mechanism is small in energy consumption, convenient to achieve and high in reliability, and satisfies the requirement of mass production.

Description

technical field [0001] The invention relates to a time display mechanism on a clock, in particular to a time display instant change mechanism. Background technique [0002] Traditional mechanical clocks use pointers (such as hour, minute and second hands) fixed on continuously rotating gears to indicate time. Later, a mechanism that uses slowly rotating digital dials to indicate time (such as calendar) also appeared. A certain The displayed time is when the number turns into the display window, but this kind of digital display mechanism realizes the slow change by slowly crawling for a period of time, that is, the number to be displayed will first appear on the top of the display window, and then Slowly revealing more and more, finally revealing the whole figure, then slowly revealing less and less, finally only revealing the bottom of the figure. When it is necessary to display the number of minutes in the time, since there are only 60 seconds in one minute, it is difficul...

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly solves the technical problem that the gear transmission system in the original clock and watch needs to store a large amount of energy during the conversion process, resulting in a large reduction in the energy transmitted to the balance wheel, which greatly affects the travel time accuracy of the mechanical clock and watch. ;Provide a time display instantaneous change mechanism, which utilizes hairspring energy storage and combines with escapement mechanism to realize the instantaneous change of time display, so as to ensure that the energy transmitted to the balance wheel by the gear transmission system will not be reduced, thereby improving the travel time accuracy of mechanical clocks

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