JPS585996Y2 - Antenna for electronic clock - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an antenna for a portable electronic watch.

Providing a portable electronic watch with a receiving function is very effective, as it allows the user to obtain various types of information from the outside, and to automatically adjust the time and time from the outside.

In general, portable electronic watches are usually shielded by an outer case to prevent the inside of the watch body from being affected by various external disturbances.

Therefore, in order to achieve efficient reception, it is desirable to take the antenna outside the outer case and obtain signals from the outside.

Conventionally, antennas for portable electronic watches have been devised such as equipping an antenna coil inside the watch body, or using a step motor or an alarm buzzer inside the watch body as an antenna, but none of them have been used. Since the antenna is located inside the watch body, which is shielded by an outer case, the electric or magnetic field is significantly attenuated near the antenna, making it impossible to receive sufficient reception.

In order to eliminate the above-mentioned drawbacks, the present invention aims to effectively receive radio waves by protruding a part of the winding stem outside the outer case of the watch by having it function as an antenna for adjusting the time. It also aims to reduce the number of parts and facilitate operation by using it also as a winding stem.

The present invention will be explained in detail below with reference to the drawings.

Figures 1 and 2 show an embodiment of this idea, with Figure 1 showing it being used as a true time adjustment device, and Figure 1 showing it being used as a true time adjustment antenna. This shows the state in which it is used.

In FIG. 1, the antenna base 1 is inserted into the inside of the winding stem side 3 which is in contact with the earth, that is, the base plate of the watch, and is insulated from the winding stem side 3 by an insulating rubber 2.

Further, the tip of the antenna rod 6 inserted into the antenna base 1 is connected to the crown 5 with a screw, and the antenna rod 6 is configured to be pulled out from the winding stem side 3 by pulling the crown 5. .

Also, the antenna transmission spring 8 connected to the loading coil 7 is in contact with the winding stem side 3, and the loading coil 7 is connected to the earth of the watch body, and the loading coil 7 and noise voltage are induced. 1. Consideration has been given to avoid adversely affecting the clock section and the receiving section.

The Tsuzumi wheel 4 and the Kannuki 9 have functions for smoothly adjusting the time, similar to conventional watches.

The seal 11 maintains the waterproofness of the crown hole.

Further, the terminal pin 10 is a power switch for the receiving circuit, and when it comes into contact with the pin 9, the power of the receiving circuit is turned on.

Next, regarding the operation, in one embodiment of the present invention, when the device is pulled out one step, the time is set and the hands can be set (the state shown in Figure 1), and when it is pulled out one more step, reception is possible. The winding stem acts as an antenna (the state shown in Figure 2).

The situation at this time will be described in more detail with reference to Figure 2.
By pulling out the crown 5 two steps, the antenna transmission spring 8 is brought into contact with the antenna base 1, and the loading coil 7 is connected to the antenna base 1.

Furthermore, the □Tsuzumi wheel 4 moves, the pin 9 and the terminal pin 10 are connected, and the receiving circuit is powered on, entering the receiving state.

By turning the crown 5 slightly to the right or upper left with your hand, the connection with the winding stem side 3 is released, and the crown 5 and antenna rod 6 are separated from each other.
The winding stem can be pulled out from the winding stem side 3, and the winding stem functions as a two-stage rondo antenna.

Although one embodiment of the present invention has been described above, a wide variety of methods are conceivable, such as using a three-stage or more Rondo antenna for the antenna section, and setting the receiving state when the crown is pushed in.

As mentioned above, this invention not only makes the winding for time adjustment function as an antenna and enables efficient reception of radio waves, but also contributes to making the watch more multifunctional and increasing precision through external regulation. , since it serves both as a winding stem and an antenna, it has many effects such as reducing the number of parts and facilitating operation.

[Brief explanation of drawings]

1 and 2 show one embodiment of the antenna according to the present invention, and FIG. 1 is a plan view when it is used as a winding stem;
Figure 2 is a plan view when used as an antenna. 1... Antenna base = 2... Insulating rubber, 3... Winding stem side, 4... Tsuzumi wheel, 5
...Crown, 6...Antenna rod, 7
... Loading coil, 8 ... Antenna transmission spring, 9 ... Kannuki, 10 ...
...Terminal pin 11... Waterproof gasket.

Claims (1)

[Scope of Claim for Utility Model Registration] An antenna rod that is slidably and insulated on the winding stem side having a Tsuzumi wheel, and a cannula that is rotatably provided with one end engaging the Tsuzumi wheel. , a terminal pin constituting a switch that is connectable to the cannula, an antenna base provided at the tip of the antenna rod, and an antenna transmission spring that is connectable to the antenna base and connected to the loading coil. Equipped with. An antenna for an electronic watch configured such that when the antenna rod is pulled out, the terminal pin and the cannula are electrically connected, and the antenna base and the antenna transmission spring are electrically electrically connected.