JPH0245836Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a reference device for an alarm watch that is capable of setting a plurality of reference values.

(Prior art) Conventionally, the reference set of an analog electronic clock equipped with a reference device is usually a single type, and in order to enable multiple reference sets, for example, a timer is connected to this, and a reference signal from the reference set is connected. There is a known configuration in which a timer is operated in response to the signal, thereby obtaining a second guideline.

(Problems to be solved by the invention) In the case of a single-type conventional indicator device, if an alarm is required at a different time, it must be reset to that time, and the purpose of the alarm must be reset. After the time is over, the time must be reset to the original time, and connecting the timer mentioned above naturally requires a separate timer, making it a large undertaking, and the approximate setting is limited in terms of time. It had become a thing of the past.

(Means for Solving the Problems) The present invention has been made in view of the above circumstances, and aims to improve this type of guide device to make it possible to set multiple guides and to make the watch more compact. It was made so that it could be done.

That is, the present invention provides a contact wheel rotatably driven in conjunction with a timepiece wheel train, a contact wheel provided between the contact wheel and the hour hand wheel, an inner annular pattern electrode, an outer annular pattern electrode, and between these annular pattern electrodes. The arranged radially divided pattern electrodes are each formed in a non-conductive state, and are fixed to the clock train side of the contact wheel, and are in sliding contact with the inner annular pattern electrode and the radially divided pattern electrode of the contact substrate. A guideline for a watch that includes a contact spring that enables these conductions, and a guideline setting pin that contacts the outer annular pattern electrode and the radially divided pattern electrode of the contact board and enables conduction and non-conduction of these electrodes. The aim is to provide the equipment.

(Example) The present invention will be explained below based on examples.

Fig. 1 is a longitudinal sectional view showing an embodiment of the reference device according to the present invention, Fig. 2 is a front view of a watch implementing the present invention, and Fig. 3 is a front view of a contact board used in the present invention. In the figure, the clock of the present invention drives a motor by obtaining a drive signal from a clock reference source such as a crystal.
It is based on a well-known analog electronic clock that displays the time by appropriately decelerating its rotation through a clock train.To briefly describe this, a motor (not shown) connects a second hand wheel to a second hand through a train of wheels. The information is transmitted to the third wheel and the minute wheel 7, and the minute hand 11 fixed to the tip of the minute wheel 7 displays the minutes. Furthermore, the rotation of the minute hand wheel 7 is transmitted to the hour hand wheel 1 via the hour hand wheel 5.
Hours are displayed by an hour hand 3 fixed to the tip of the hour wheel 1.

The present invention provides a contact wheel 21 that is rotationally driven in conjunction with the clock train. In the embodiment, a shaft 13 is provided protruding from the Hinouraguruma 5, and the shaft 13 passes through the mechanism receiving plate 15.
A gear 17 is provided, and the gear 17 meshes with the internal gear 23 of the contact wheel 21 via a reduction gear 19, thereby causing the contact wheel 21 to rotate once in 24 hours.
In other words, the contact wheel 21 is used as a so-called ground vehicle.

On the other hand, a contact board 31 is disposed between the contact wheel 21 and the hour hand wheel 1. On the contact substrate 31, an inner annular pattern electrode 33, an outer annular pattern electrode 37, and a radially divided pattern electrode 35 are formed between these annular pattern electrodes in a non-conducting state. In the embodiment, the pattern electrode 35 is
It is divided into 72 pieces, each divided into 20 minute intervals including the alarm time from each pattern electrode 35.

In the contact substrate 31 configured in this way, a contact spring 25 is provided on the back surface of the contact wheel 21 to make sliding contact with the inner annular pattern electrode 33 and the radially divided pattern electrode 35 to establish electrical continuity therebetween. The contact spring 25 is made of a U-shaped spring material, for example, and the tip portion of the U-shape sequentially slides into contact with the pattern electrodes 33 and 35 as the contact wheel 21 rotates, thereby establishing electrical conduction between both pattern electrodes. Repeat non-conduction periodically.

On the other hand, a separately provided guide switch 41 allows
The radially divided pattern electrode 35 and the outer annular pattern electrode 37 are electrically connected and non-conductive.
In the case of the embodiment, this guide switch 41 is constituted by a guide setting pin 43 having a conductive rubber 45 at its tip. That is, on the front surface of the watch case 51, a plurality of annular through holes 53, 53 are formed at positions corresponding to the pattern electrodes 35, 37, and when the guideline setting pin 43 is inserted into the through hole 53, the reference setting pin 43 is inserted into the through hole 53. The conductive rubber 45 at the tip comes into contact with both pattern electrodes, thereby establishing electrical continuity between the two, which are normally non-conductive. Further, the through holes 53 are formed at equal intervals of 72 due to the division of the pattern electrode 35 into 72 pieces.
Each hole is perforated. Then, the contact wheel 21 is 24
Since the watch rotates once per hour, numbers 1 to 24 are provided in an annular shape near the through hole 53 on the front surface of the watch case 51. In addition, the display hole 5 on the dial 55
7, and a 24-hour time display corresponding to the 12-hour time display by the hour hand 3 and minute hand 11 is provided on the surface of the corresponding contact wheel 21. In addition to this example, the reference switch 41 may be configured such that, for example, a lead wire or the like is connected to each of both pattern electrodes 35 and 37, and conduction and non-conduction are made by an appropriate switch at a different location. . In addition to the guide setting pin 43 having a conductive rubber 45 at the tip as in the embodiment, the guide setting pin 43 has an outer annular pattern electrode 37 and a radially divided pattern electrode 35.
Any material may be used as long as it contacts the electrodes and enables conduction and non-conduction of these electrodes.

Now, an example of the guideline setting according to the present invention will be explained based on FIG. 2. When the time is 3:30 in the afternoon, the guideline setting pin 43 is set so as to generate an alarm sound at midnight. Insert it into the through hole 53 at the 24 scale mark and set the guide. At this time, 15:30 is displayed in the display hole 57 on the dial plate 55, and the contact spring 25 is similarly positioned at the 15:30 position in the through hole 53. In other words, the contact spring 25 at this time has 15
Although the pattern electrode at the time 30 minutes is in sliding contact with the pattern electrode to establish electrical continuity between them, the pattern electrode at that location is not electrically conductive between the radially divided pattern electrode 35 and the outer annular pattern electrode 37. The reference contact remains OFF.

When time passes and it is midnight, the respective pattern electrodes 33, 35, 37 are simultaneously brought into conduction by the contact spring 25 and the reference setting pin 43, which turns the reference contact ON and the alarm output is sent to the sound generation circuit. is supplied to activate the alarm.

(Effects of the Invention) As explained above, the present invention includes a contact wheel rotatably driven in conjunction with a clock train, an inner annular pattern electrode provided between the contact wheel and the hour hand wheel,
a contact substrate in which an outer annular pattern electrode and a radially divided pattern electrode disposed between these annular pattern electrodes are formed in a non-conducting state, and a contact substrate fixed to the clock train side of the contact wheel; A contact spring that slides into contact with the annular pattern electrode and the radially divided pattern electrode to enable electrical conduction therebetween; and a contact spring that contacts the outer annular pattern electrode and the radially segmented pattern electrode of the contact substrate to enable electrical conduction and non-conduction between these electrodes. By setting each guide setting pin to the desired time, it is possible to set multiple guides, and it is possible to set multiple guides in a manner other than the alarm time that conventional guide devices had. This eliminates the hassle of setting a guideline. Furthermore, by arranging the contact board between the contact wheel and the hour hand wheel, the thickness of the reference mechanism can be reduced to just the thickness of the watch wheel train, thus making the entire watch thinner without increasing its thickness. Therefore, the watch can be made more compact.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the reference device according to the present invention, FIG. 2 is a front view of a watch implementing the present invention, and FIG. 3 is a front view of a contact board used in the present invention. 1...Hour wheel, 21...Contact wheel, 25...Contact spring, 31...Contact board, 33, 35, 37...
Pattern electrode, 43... Guideline setting pin.

Claims (1)

[Scope of utility model registration request] a contact wheel that is rotationally driven in conjunction with the clock train;
A contact substrate provided between the contact wheel and the hour hand wheel, and in which an inner annular pattern electrode, an outer annular pattern electrode, and a radially divided pattern electrode arranged between these annular pattern electrodes are each formed in a non-conducting state. , a contact spring fixed to the clock train side of the contact wheel and slidably in contact with the inner annular pattern electrode and the radially divided pattern electrode of the contact board to enable electrical connection therebetween; and an outer annular pattern electrode of the contact board. A guide device for a watch, comprising: a guide setting pin that contacts radially divided pattern electrodes and makes these electrodes conductive or non-conductive.