JPS6210707Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a night time signal stop device for a time signal clock, in particular, a time signal stop contact is provided in the time signal circuit, and the time signal stop contact is controlled to open and close in conjunction with the clock train. The present invention relates to an improved night time signal stop device for a time signal clock that can stop the time signal function at a desired time.

Since a time signal clock that strikes the hour or sounds a chime, the time signal function corresponds to the specified time every hour, so there is a problem that it becomes a source of noise when going to bed at night, so if necessary, the night time signal must be stopped. It was requested to do so.

In order to meet the above-mentioned demands, conventional night time signal stop devices provide a time signal stop contact in the time signal circuit, and control the opening and closing of the time signal stop contact in conjunction with the clock train. By temporarily stopping the time signal at a desired time, the above-mentioned disturbance to sleeping can be removed, and power consumption can be saved during the time period when the time signal is stopped.

However, because the conventional general time signal stop contact was installed on a gear that rotates continuously in conjunction with the clock train, the time to stop and restart the time signal is unstable, resulting in variations in the stop period. There is a problem that, especially in watches such as Westminster clocks that signal time every 15 minutes, it may not be possible to accurately stop or restart the time during these 15 minutes. As a result, there were drawbacks such as a half-finished time signal stop effect. In addition, in conventional devices, as mentioned above, the time signal stop contact is always in sliding contact with the fixed side contact, and as a result, the contact state of the contact changes during the time signal operation, causing an electrical time signal effect. The drawback was that it became unstable.

The present invention was developed in view of the above-mentioned conventional problems, and its purpose is to provide an improved night time signal stop for a time signal clock that can accurately set the time signal stop period and perform a stable time signal operation. The goal is to provide equipment.

In order to achieve the above object, the present invention provides a signal that stops the time signal at a desired designated time by controlling the opening and closing of the night time signal stop contact provided in the time signal circuit in conjunction with the clock train. In the night stop device for a timepiece, the time signal stop contact is rotationally driven by an intermittent feed gear train driven by a clock train, and is configured to come into sliding contact with a fixed contact. Sliding occurs while the minute control contact, which follows the minute hand gear of the clock train and determines the time signal, is opened, and after the preset time signal operation is completed and the next time signal operation begins. It is characterized by being carried out within the same time domain as before.

Preferred embodiments of the present invention will be described below based on the drawings.

In FIG. 1, a minute wheel 12 to which a minute hand 10 is fixed forms part of a timepiece wheel train driven by a clock pulse motor (not shown), and performs a desired time indicating function.

In the present invention, an intermittent feed gear train is connected to the clock wheel train, and in the embodiment, the minute hand wheel 12 drives the intermittent feed gear train, and in the embodiment, the intermittent feed gear train is connected to the Geneva gear mechanism. include. That is, the Geneva moving wheel 14 is fixed to the minute wheel 12, and the Geneva driven wheel 16 is fixed to the Geneva moving wheel 14.
are meshed together, and the Geneva driven wheel 16 is driven to feed by one pitch for every revolution of the minute wheel 12, that is, every 60 minutes, and in this embodiment, this feeding time is set to 5 minutes. A pinion 18 is fixed to the Geneva driven wheel 16, and the pinion 18 meshes with the contact gear 20. As a result, the contact gear 20 becomes 24
It is intermittently driven once per hour.

A time signal stop contact 22 is fixed to the gear shaft 20a of the contact gear 20, and the time signal stop contact 22
controls the opening and closing of the time signal circuit 24. That is, a first fixed contact 28 and a second fixed contact 30 provided on the circuit board 26 are arranged between the contact gear 20 and the time signal stop contact 22, and each fixed contact 28,
30 can be in sliding contact with the first contact 22a and the second contact 22b of the time-stop contact 22.
The fixed contacts 28 and 30 in this embodiment are formed substantially in the form of a ring on the circuit board 26 by a well-known printed wiring technique. The second fixed contact 30 is in the form of a closed ring, but a portion of the first fixed contact 28 is cut out, and in the embodiment, the first contact is only used for one quarter of one rotation, that is, for six hours at night. 22a is separated from the first fixed contact 28, and the time signal circuit 24 becomes open.

The time signal circuit 24 includes a time signal device 32 and a power source 34 connected in series to both fixed contacts 28 and 30, and further includes a main switch 36 between the power source 34 and the first fixed contact 28, and a main switch 36 connected between the power source 34 and the first fixed contact 28. A minute control contact 38 is provided between the clock device 32 and the minute control contact 38 for following the minute hand gear of the clock train and determining the minute and time for every 15 minutes. A minster clock is formed. Time signal device 32
The power source 34 can be configured to strike a bell using a motor, or can be formed from a ROM in which a desired ringing sound or melody is stored in advance, and the power source 34 usually consists of a battery.

The night alarm time stop device according to the present invention has the above-mentioned configuration, and its operation will be explained below.

As the clock train rotates, the Geneva gear mechanism 14,
The intermittent feed wheel train including No. 16 is driven one pitch per hour, and the driving time is between 50 and 55 minutes per hour. Therefore, the time signal stop contact 22 is also driven to feed at the same time, and is driven to feed by 15 degrees for 5 minutes in one hour, so the feeding speed during intermittent feeding is significantly higher than that of the conventional one, and the minute hand wheel 1
It becomes possible to obtain a high speed of about half of 2.
Then, the movement angle of 15° is adjusted to the time signal stop contact 22.
If the first contact 22a is set in a position where it comes into contact with and separates from the first fixed contact 28, it becomes possible to stop and restart the time signal at a desired accurate nighttime time.

In the embodiment, even in the case of the Westminster clock where the time signal is activated every 15 minutes, according to the present invention, as shown in FIG. , since the opening and closing of the contact 22 is reliably performed during this feeding drive,
Unlike conventional devices, according to the present invention, the time signal circuit 2
4 will be accurately controlled to open and close.

Moreover, as is clear from FIG. 2, the sliding movement of the time signal stop contact 22 in the present invention follows the minute hand gear of the clock train, and the minute control contact that determines the signal hour, minute, and time is opened. Since it is carried out within the time range between after the completion of the preset time alarm operation and before the start of the next alarm operation, in the time alarm state every 15 minutes, the time alarm stop contact 22 and both fixed contacts 28,30
are in contact in a stationary state, and have the advantage that a stable contact state can be obtained.

Further, according to the present invention, when the time signal circuit 24 operates to perform a time signal action, the time signal stop contact 22 described above stops rotating.
There is no change in the contact resistance of the contact, and there is no change in the alarm sound or chattering caused by changes in the sliding resistance that occur in the case of conventional continuous sliding contacts.

In the present invention, the time signal device may be one that generates a chime sound or a time striking mechanism that plays a chime sound or melody as a warning bell.

As explained above, according to the present invention, the signal stop contact is driven intermittently when the minute control contact is opened,
It has the advantage of accurately controlling the night time signal stop time and providing a stable time signal effect.

[Brief explanation of the drawing]

FIG. 1 is an explanatory view showing a preferred embodiment of the night time signal stop device according to the present invention, and FIG. 2 is a time chart showing the operation of the time signal stop contact in the present invention. 12...Minute wheel, 14...Geneva wheel, 16...
... Geneva driven wheel, 20 ... contact gear, 22 ... time signal stop contact, 24 ... time signal circuit, 28 ... first fixed contact, 30 ... second fixed contact.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A time signal that stops the time signal at a desired designated time by controlling the opening and closing of a night signal stop contact provided in the time signal circuit in conjunction with the clock train. In the night stop device for a watch, the time signal stop contact is rotationally driven by an intermittent feed wheel train driven by a clock train, and is configured to come into sliding contact with a fixed contact, and the time signal stop contact is in sliding contact with a fixed contact. The operation is performed while the minute control contact that follows the minute hand gear of the clock train and determines the alarm time is open, after completion of the preset time alarm operation and before the start of the next alarm operation. What is claimed is: 1. A night time signal stop device for a time signal clock, characterized in that the time signal is stopped within a time range of . (2) A night time signal stop device for a time signal clock, in which the intermittent feed wheel train includes a Geneva gear mechanism in the device described in claim (1). (3) A night stop device for a time signal clock, in which the time signal circuit is activated every 15 minutes in the device described in claim (1) or (2) of the utility model registration.