JP3366432B2 - Structure of clock with receiving antenna - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a watch with a receiving antenna, such as a radio-controlled watch provided with an antenna for receiving radio waves.

[0002]

2. Description of the Related Art As a conventional timepiece with a receiving antenna, there is one disclosed in Japanese Patent Application Laid-Open No. 5-223959.
The structure is shown in FIG. 3 as a cross-sectional view of a main part cut in the 3 o'clock-9 o'clock direction of the timepiece.

A bezel 27 made of a non-conductive material is fixed to the upper surface of the body 28 via a packing made of resin.
A cover glass 22 having a recess 26 for disposing the bar antenna 21 on the back surface is fixed to the bezel 27 via a resin packing. The bar antenna 21 for receiving radio waves is arranged between the concave portion 26 of the cover glass 22 and the dial plate 23, and is connected to the module 25 via a hole 24 formed in the dial plate 23. ing.

[0004]

The structure of such a conventional watch with a receiving antenna is excellent in that the bar antenna 21 is housed inside the case 28, but on the other hand, it has a sufficient receiving ability. From the viewpoint of securing the diameter, the diameter of the bar antenna 21 is required to be 3 to 5 mm, which occupies about 60 to 70% of the total thickness of a normal wristwatch. Therefore, the thickness of the wristwatch becomes unavoidably hot, which is not desirable in appearance. Further, since the bar antenna 21 is arranged in the center of the dial 23, the time display portion has to be narrowed, and there is a problem that the hands and the like are difficult to see.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to dispose an antenna on the outside of a timepiece section and to give waterproofness to an antenna housing section. By doing so, it is possible to provide a structure of a timepiece with a receiving antenna which is required to have a beautiful appearance and is thin and waterproof.

[0006]

In order to achieve the above object, the structure of a watch with a receiving antenna according to the present invention has a receiving antenna such as a radio-controlled watch, a watch with a radio, and a watch having a function of receiving various information. In the structure of a timepiece, a timepiece section in which a receiving circuit, a time display section, etc. are arranged, and a 12 o'clock and / or 6 o'clock side outside the timepiece section are fixed, and an antenna is arranged in the inside. The receiving antenna unit has a terminal to be connected to the clock part outside and a band is attached to the receiving antenna unit, and the receiving antenna unit has a concave portion into which the band is inserted and fixed at a substantially central portion of an outer surface. It is characterized in that a plurality of receiving antennas are formed on the outer periphery of the recess.

Further, in the structure of the timepiece with the receiving antenna of the present invention, the receiving antenna unit is composed of a connecting member which is watertightly fixed to the timepiece section, and a storage member in which the antenna and the band are arranged and fixed. The connecting member and the housing member are fixed by welding, and the receiving antenna unit and the band excluding the antenna are formed of a non-conductive material.

[0008]

According to the present invention, the receiving antenna unit is arranged outside the timepiece unit in which the receiving circuit, the time display unit and the like are arranged, and the timepiece unit is connected to the receiving antenna unit. Only the terminal portion is provided. And
The receiving antenna unit can be designed with an emphasis on receiving ability. In addition, the waterproofness of the receiving antenna unit is sufficiently ensured.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a main part of an embodiment of the structure of a watch with a receiving antenna according to the present invention, and FIG. 2 is a view taken in the direction of arrow A in FIG.

In FIG. 1 and FIG. 2, a watch with a receiving antenna has a watch part 1 in which a receiving circuit, a time display part and the like are arranged, and an antenna coil 10 for reception. It is composed of a receiving antenna unit 11.
The receiving antenna unit 11 is connected to the watch case 2 of the watch unit 1 at the 12 o'clock side and the 6 o'clock side in a watertight manner via an O-ring 3, and is welded to the connecting member 12 and is The antenna coil 10 is configured by a storage member 13 that stores the antenna coil 10 therein.

The connecting member 12 has a mounting hole 2 for the watch case 2.
boss 12a fitted to a and two screws 14, 14
And a flange portion 12b fixed to the watch case 2. A lead wire 10a as a terminal of the antenna coil 10 is inserted through the boss portion 12a, and the lead wire 10a is connected to a receiving circuit inside the timepiece unit 1.

A central portion of the housing member 13 is a bobbin 13a around which the antenna coil 10 is wound.
The bobbin 13a also functions as a recess 13b into which the timepiece band 15 made of resin, which is a non-conductive material, is inserted. Then, the watch band 1 with respect to the recess 13b
The fixing of 5 is performed by the spring rod 16 made of resin which is a non-conductive material. In this way, the antenna coil 10
By using a non-conductive material for the members arranged in the vicinity, the receiving ability of the antenna coil 10 will not be lowered unnecessarily. Instead of the spring rod 16, a resin pin with a split pipe can be used.

The connecting member 12 and the housing member 13 are
The connection member 12 is formed by sealing with a resin that is a non-conductive material.
And the fact that the housing member 13 is welded to each other,
The waterproof function of the receiving antenna unit 11 is exerted.

The structure of the timepiece with a receiving antenna of the present invention as described above can be applied to a pager-integrated wristwatch if the antenna coil 10 receives pager radio waves. In this case, if the time display section provided inside the clock section 1 is of a segment type, it can be used also as a display device of pager reception information. In addition to this application example, if the antenna coil 10 receives time signal radio waves, it becomes a radio timepiece that does not rely on manual correction of the display time, and if it receives radio broadcasts, it becomes a radio timepiece. Is also applicable.

In the above embodiment, an example in which the receiving antenna unit 11 is arranged on both the 12 o'clock side and the 6 o'clock side of the clock section 1 has been described, but the present invention is not limited to this.
It may be arranged only on one of the hour side and the 6 o'clock side.

[0016]

As described above, according to the present invention, in the structure of a watch with a receiving antenna such as a radio-controlled watch, a watch with a radio, and a watch having a function of receiving various information, a receiving circuit, a time display unit, etc. And a terminal which is fixed to the 12 o'clock side and / or the 6 o'clock side on the outside of the timepiece portion, has an antenna inside and is connected to the timepiece portion, and The receiving antenna unit has a band attached thereto, and the receiving antenna unit has a concave portion into which the band is inserted and fixed at a substantially central portion of an outer surface thereof, and a plurality of receiving antennas are wound around the concave portion. Since the structure is adopted, the receiving antenna unit is arranged outside the timepiece unit inside which the receiving circuit and the time display unit are arranged, and the terminal unit connected to the receiving antenna unit is provided in the timepiece unit. The only disposed. Therefore, the watch portion can be made as thin as an ordinary wristwatch to ensure the aesthetic beauty required for a wristwatch and also to be sufficiently waterproof. Further, since the receiving antenna unit can be designed with an emphasis on the receiving ability, it is possible to receive various information and can be applied to a wide range of media.

Further, the receiving antenna unit is composed of a connecting member which is watertightly fixed to the timepiece section, and a housing member in which the antenna and the band are arranged and fixed, and the connecting member and the housing member. Since the antenna is welded and fixed, the receiving antenna unit can be sufficiently waterproof. In addition, since the receiving antenna unit and the band excluding the antenna are formed of a non-conductive material,
Since all the members arranged in the vicinity of the antenna coil are made of non-conductive material, the receiving ability of the antenna coil will not be lowered unnecessarily, and sufficient receiving ability can be secured.

[Brief description of drawings]

FIG. 1 is a sectional view showing a main part of an embodiment of a structure of a watch with a receiving antenna according to the present invention.

FIG. 2 is a view on arrow A in FIG.

FIG. 3 is a sectional view showing a main part of a conventional watch with a receiving antenna.

[Explanation of symbols]

1 clock section 10 antenna coil 10a Lead wire (terminal) 11 Receiving antenna unit 12 Connection member 13 Storage member 13b recess 15 watch bands

Claims (2)

(57) [Claims] 1. A structure of a timepiece with a receiving antenna, such as a radio-controlled timepiece, a timepiece with a radio, and a timepiece having a function of receiving various information, and a timepiece section in which a reception circuit, a time display section, etc. are provided, A receiving antenna unit fixed to the 12 o'clock side and / or 6 o'clock side outside the clock section, having an antenna disposed inside, having a terminal connected to the clock section outside, and having a band attached In the receiving antenna unit, a concave portion into which the band is inserted and fixed is formed in a substantially central portion of an outer side surface, and a plurality of receiving antennas are wound around the concave portion. Structure. 2. The receiving antenna unit is composed of a connection member that is watertightly fixed to the timepiece section, and a storage member on which the antenna and the band are disposed and fixed, and the connection member and the storage member. 2. The structure of a watch with a receiving antenna according to claim 1, wherein the receiving antenna unit and the band excluding the antenna are formed of a non-conductive material while being fixed by welding.