JP4896678B2 - Clock with wireless function - Google Patents

Description

  The present invention relates to a timepiece with a wireless function, and more particularly, to a timepiece having an antenna capable of receiving a predetermined radio wave and a conductive housing for housing the antenna.

Conventionally, a watch having a wireless function such as a personal computer communication function, a mobile phone function or a non-contact IC card function is already known.
As such a wireless function watch, a radio timepiece having a wireless function for receiving a long-wave standard radio wave (carrier wave) including time information and correcting the time based on the time information is also widely known.

These wireless function watches need to have an antenna for receiving a predetermined radio wave, as with other communication devices.
For this reason, in view of the function of receiving radio waves, that is, reception sensitivity, it is conceivable that the housing, which is a housing that accommodates the antenna for receiving radio waves, is made of a non-conductive material such as synthetic resin. .

However, since these wireless function watches are watches, they are different from other communication devices and require a beautiful appearance and a high-class feeling as an ornament or an accessory.
For this reason, it is required to adopt a conductive material, that is, a metal material, as a material of a housing that is a housing for receiving an antenna, instead of a non-conductive material such as a synthetic resin. .

This is because a housing such as a synthetic resin gives the user an inexpensive appearance and a feeling of wearing due to its texture, color tone, or light weight, whereas a metal housing has a high-class feeling. This is to give the user a certain appearance and wearing feeling .

This demand for a metal housing is particularly significant in a wristwatch as an accessory carried by a user.
However, when the antenna is housed in a conductive housing, i.e., a metal housing, the magnetic flux generated in the vicinity of the antenna is absorbed by the metal housing, which is a conductive material, and the resonance phenomenon is hindered. The reception function for the antenna to receive standard radio waves will be significantly reduced.

For this reason, various proposals for improving reception sensitivity have been made.
For example, Patent Literature 1 discloses a radio timepiece including a metal housing that is a metal casing, particularly a radio timepiece.

That is, as shown in FIG. 31, the radio timepiece 100 includes a housing 102.
In the present specification, the “vertical direction” means the vertical direction in FIG. 31 or FIG. Therefore, the upper surface is a surface exposed outward when the wristwatch is worn on the wrist, and the lower surface is a surface facing the wrist in the same state.

  Further, the “planar direction” is a direction orthogonal to the vertical direction, and means the left-right direction in FIG. 2, and the planar direction overlaps with the longitudinal direction of the band or the width direction of the band. In some cases.

  The housing 102 includes a watch case 104 constituting a metal frame, a metal back cover 106 which is mounted in a sealed state so as to cover a lower surface opening of the watch case 104, and an upper surface opening of the watch case. And a windshield (glass) 108 mounted in a sealed state.

  In the housing 102, a movement 110 constituting a timepiece driving unit and a solar cell 112 disposed on the upper surface of the movement 110 for driving the movement by an electromotive force of light are provided.

  Further, on the upper surface of the solar cell 112, there is provided a dial plate 114 having a translucent function that transmits external light having a wavelength contributing to power generation of the solar cell 112 at least enough to drive the movement 110.

Further, an antenna 116 for receiving standard radio waves is attached below the side of the movement 110.
Although not shown, a minute hand and an hour hand are arranged on a needle shaft that protrudes from the movement 110 and penetrates the solar cell 112 and the dial plate 114. These minute hand and hour hand are positioned between the dial plate 114 and the windshield 108 to display the time.

  Further, the watch case 104 includes two sets of band attaching portions 118 projecting outward, and the band attaching portions 118 are disposed at a predetermined interval so as to face each other. The leg part 120 extended from 104 is provided.

A wristwatch band (not shown) is connected between each of the leg portions 120.
By the way, in the radio timepiece 100 adopting such a metal exterior, when the antenna 116 receives radio waves, the eddy current along the circumferential direction of the annular wall is induced in the metal timepiece case 104. Will flow as.

This eddy current cancels out radio waves from the outside of the housing 102, and the reception sensitivity of the antenna 116 is extremely lowered.
In order to avoid such a phenomenon, in the radio timepiece 100 of Patent Document 1, the annular wall of the timepiece case 104 is provided with a slit 122 that divides the timepiece case 104 in the circumferential direction.

  That is, as shown in FIG. 31, the watch case 104 is completely divided in the vertical direction by the slit 122, and as a result, the watch case 104 has a substantially C-shaped frame shape by the slit 122. It has become.

  In FIG. 31, the slit 122 is omitted for clarity and is not shown, but the slit 122 is embedded with an insulating member made of non-conductive synthetic resin. ing.

That is, the insulating member is configured to maintain the waterproofness and strength of the watch case 104.
Therefore, in the radio timepiece 100 having the slit 122, since the eddy current does not flow along the circumferential direction of the annular wall of the timepiece case 104 when the antenna 116 receives a radio wave, a conductive metal timepiece case. Even when 104 is adopted, reception of the antenna 116 is ensured.

Patent Document 2 proposes to provide an insulating layer between the dial and the watch case or between the back cover and the watch case.
As a result, an electric loop is not formed between the constituent materials, the external radio wave is prevented from being shielded, and the external radio wave is received by the antenna through this insulating layer. Yes.

By the way, there is a radio wave wristwatch provided with such a metal housing in which a brittle material such as a shell or a precious stone is used for a dial as in Patent Document 3 in order to give a high-class feeling.
Such brittle materials are weak in strength and have low impact resistance, and thus are easily damaged during the assembly process. Further, there is a risk of damage when subjected to an impact after assembly. For this reason, a ring is provided on the outer periphery of the dial so that an impact on the dial is avoided.
JP 2002-341057 A JP 2004-325315 A Japanese Utility Model Publication No. 58-158386

However, when the radio clock has the above-described structure, if the ring is made of metal, there is a problem that the reception sensitivity of the antenna is lowered.
That is, an eddy current is generated in the circumferential direction of the ring through the outer periphery of the dial, and the radio wave reception sensitivity is lowered. Even if it makes the structure like patent document 1 or patent document 2, the fall of a receiving sensitivity cannot necessarily be avoided.

  In the radio-controlled timepiece 100 of Patent Document 1, since a slit 122 is formed in a part of the watch case 104 and an insulating member made of a synthetic resin is embedded in the slit 122, the aesthetic appearance is not good. Compared to a watch case made entirely of metal, it is not as high-quality and the strength of the insulating member is inevitably weakened, resulting in waterproofness, impact resistance, wear resistance, and chemical resistance. Will also be inferior.

  Further, in the radio timepiece 100 of Patent Document 1, a slit 122 is formed in a part of the timepiece case 104 to improve the reception sensitivity of the antenna 116. However, the radio timepiece 100 is placed at the time of reception. Depending on the location, the surrounding environment, or even the posture of the watch, the antenna could often not be received.

Therefore, even in the radio timepiece 100 having the slit 122 as in Patent Document 1, it is difficult to say that the antenna 116 still has sufficient reception sensitivity.
In view of such a current situation, the present invention has a good appearance, a high-class feeling, excellent strength, and an antenna housed therein that can reliably receive radio waves. An object is to provide a wireless function watch including an annular member.

The present invention was invented in order to achieve the above-described problems and objects in the prior art, and the wireless function watch of the present invention is
And housings,
An antenna housed in the housing for receiving radio waves from the outside;
A dial disposed in the housing;
A conductive annular member disposed on the outer periphery of the dial;
At least one slit formed in the annular member and dividing the annular member in the circumferential direction;
It is characterized by providing.

  With this configuration, a slit that divides the annular member in the circumferential direction is formed in the conductive annular member disposed on the outer periphery of the dial, so that the eddy current along the annular member is formed by the slit. Is interrupted, and the generation of eddy currents is prevented.

As a result, a decrease in the reception sensitivity of the antenna due to the eddy current flowing in the annular member is prevented, and the reception sensitivity of the antenna is improved.
In addition, since the annular member is disposed in a housing sealed from the outside, even when a slit is formed in the annular member, the waterproofness of the housing itself does not deteriorate.

In addition, the wireless function watch of the present invention is
And housings,
An antenna housed in the housing for receiving radio waves from the outside;
A dial disposed in the housing;
A conductive annular member disposed on the outer periphery of the dial;
An insulating region interposed between the annular member and the projecting portion provided inside from the housing so as to insulate between the annular member and the housing;
It is characterized by providing.

  In this way, since an insulating region is provided between the annular member and the projecting portion provided inside the housing, no induced current is generated between the conductive annular member and the projecting portion. Decrease in the reception sensitivity of the antenna due to the induced current flowing between the annular member and the protruding portion is prevented, and the reception sensitivity of the antenna is improved.

In the present application, the projecting portion includes “a projecting portion projecting inward from the housing”, “turning ring”, and “bezel”, which will be described later.
This insulating region is disposed at least between the conductive portion of the projecting portion and the annular member.

  The insulating member constituting such an insulating region is not particularly limited, and for example, a non-conductive insulating member such as synthetic resin, rubber, or ceramic can be employed.

  It is also possible to use a member in which a nonconductive film is coated on a conductive material. In this case, the conductive material constituting the insulating member is, for example, gold, silver, copper, brass, aluminum, magnesium, zinc, titanium, or an alloy thereof, as with the conductive material constituting the annular member. Etc. can be adopted. Further, for example, a titanium alloy, stainless steel, tantalum carbide, or the like can be employed.

  And as a non-conductive film coated with the conductive material constituting this insulating member, that is, as the insulating film, for example, a non-conductive paint film, a non-conductive print film, a non-conductive dry type An example is a plating film.

Moreover, as such an insulating film, for example,
・ CVD film such as DLC (Diamond Like Carbon)
・ Insulating coatings of organic materials such as acrylic materials, urethane materials, or cellulose materials,
・ Chromium compound coatings containing chromium compounds or aluminum oxide coatings containing aluminum oxide compounds,
Etc. can be adopted.

  As the chromium compound-based coating, for example, a chromium oxide-based coating containing a chromium oxide compound, a chromium nitride-based coating including a chromium nitride compound, or a chromium carbide-based coating including a chromium carbide compound can be employed.

Further, instead of such an insulating coating, an insulating member made of a synthetic resin or rubber may be attached to a conductive material constituting the insulating member.
Furthermore, an insulating film employed for an insulating member to be described later may be used.

In addition, the wireless function watch of the present invention is
And housings,
An antenna housed in the housing for receiving radio waves from the outside;
A dial disposed in the housing;
A conductive annular member disposed on the outer periphery of the dial;
An insulating region interposed between the annular member and the projecting portion provided inside from the housing so as to insulate between the annular member and the housing;
At least one slit formed in the annular member and dividing the annular member in the circumferential direction;
It is characterized by providing.

  Thus, by providing an insulating region between the annular member and the watch case, the antenna reception sensitivity is further improved by a synergistic effect with the improvement of the antenna reception sensitivity of the slit formed in the annular member. Become.

  The housing including the watch case in the present invention may be conductive such as metal or non-conductive such as synthetic resin. Alternatively, conductive parts and non-conductive parts may be mixed in the parts constituting the housing. A housing is understood to be a member that is at least partially conductive or at least partially non-conductive. Regardless of conductivity or non-conductivity, if a slit is provided in the conductive annular member disposed in the housing, a decrease in antenna reception sensitivity due to the eddy current of the annular member is avoided.

  Further, a slit may be formed in a component constituting the housing in the present invention, for example, a watch case. Or the slit of a timepiece case may be excluded and a slit may be formed only in an annular member.

  In the present invention, the conductive member refers to “the material of the member itself is a conductive member” or “the member is covered with a conductive coating”. In the latter case, the material of the member itself may be a non-conductive member, a conductive member, or a combination of a non-conductive member and a conductive member.

  On the contrary, the non-conductive member means “one whose material itself is a non-conductive member” or “one whose member is covered with a non-conductive coating”. In the latter case, the material of the member itself may be a non-conductive material, a conductive material, or a combination of a non-conductive material and a conductive material.

  As the conductive material constituting the annular member, for example, gold, silver, copper, brass, aluminum, magnesium, zinc, titanium, or an alloy thereof is employed. Further, for example, a titanium alloy, stainless steel, tantalum carbide, or the like may be employed.

In the wireless function watch of the present invention, the annular member is fitted on the outer periphery of the dial.
By comprising in this way, an annular member can avoid the impact to a dial plate, and can improve the intensity | strength and impact resistance of a dial plate.

In the wireless function watch of the present invention, the annular member is fitted in a recess formed on the outer periphery of the dial.
By configuring in this way, the annular member is integrated with the dial plate, so that the dial plate can be easily incorporated into the watch case, the working efficiency can be improved, and the manufacturing cost can be reduced.

In the wireless function watch of the present invention, the dial is made of a brittle material.
In the wireless function watch of the present invention, the dial is at least one brittle material selected from the group consisting of shellfish, precious stones, ceramics, and glass.

In this way, the use of brittle materials such as shellfish, precious stones, ceramics, glass, etc., increases the variation of the dial, improves the aesthetics and luxury of the dial, and improves the aesthetics of the watch itself. To do.

The wireless function watch of the present invention is characterized in that the slit is arranged in the vicinity of the upper part of the antenna.
By arranging the slit in the vicinity of the upper part of the antenna in this manner, there is no conductive annular member that prevents radio wave reception above the antenna, so that the reception sensitivity of the antenna is improved.

  The wireless function watch of the present invention is characterized in that the slit is composed of two slits disposed in the vicinity of the upper part of the antenna so as to face both open ends of the antenna.

  By configuring in this way, there is no conductive annular member that prevents reception of radio waves by two slits in the portion facing the open both ends of the antenna. The reception sensitivity of the antenna is improved.

  The wireless function watch of the present invention is characterized in that the slit is composed of a slit disposed in the vicinity of the upper part of the antenna so as to face at least one open end of the antenna.

  With this configuration, there is no conductive annular member that prevents reception of radio waves due to the slit in the portion facing the open end of at least one of the antenna. Is received at one open end of the antenna, and the reception sensitivity of the antenna is improved.

In addition, the wireless function watch of the present invention includes an insulating member disposed in a slit of the annular member.
With this configuration, the conductive annular member housed in the watch case is formed with a slit that divides the annular member in the circumferential direction, and the insulating member is disposed in the slit. Therefore, the flow of eddy current along the annular member is interrupted, and the generation of eddy current is prevented.

As a result, a decrease in the reception sensitivity of the antenna due to the eddy current flowing in the annular member is prevented, and the reception sensitivity of the antenna is improved.
Furthermore, since the insulating member is disposed in a housing sealed from the outside, even when the insulating member is disposed, the impact resistance, wear resistance, and chemical resistance of the housing itself do not deteriorate.

Moreover, since the insulating member is disposed in the slit as described above, the strength of the annular member is also maintained.
The insulating member may be a member made of a nonconductive material or a member in which a nonconductive film is coated on a conductive material. As the non-conductive material, for example, synthetic resin, rubber, or ceramic is employed. As the conductive material, the material of the annular member described above is employed.

  For example, an insulating film made of an organic material such as an acrylic material, a urethane material, or a cellulosic material is employed as the non-conductive film that is coated on the conductive material, that is, the insulating film. Further, as this insulating film, for example, a chromium compound-based film containing a chromium compound or an aluminum oxide-based film containing an aluminum oxide compound is employed.

  As the chromium compound-based coating, a chromium oxide-based coating including a chromium oxide compound, a chromium nitride-based coating including a chromium nitride compound, or a chromium carbide-based coating including a chromium carbide compound is employed.

In addition, as an insulating film, as in DLC (Diamond Like Carbon), between an annular member and a protrusion, which will be described later, between an annular member and a counter ring, or between an annular member and a bezel. An insulating film serving as an insulating region disposed on the substrate may be employed.

Further, instead of the insulating coating, an insulating sheet made of synthetic resin or rubber may be attached.
The insulating member is preferably fixed to the annular member so as not to be pulled out carelessly. As the fixing means, for example, mechanical engaging means such as fitting, press-fitting, joining, insert molding, etc. are employed. As the bonding layer for bonding the insulating member and the annular member, for example, an adhesive, an adhesive, or a double-sided tape is used. These bonding layers are preferably non-conductive insulating layers.

In the wireless function watch of the present invention, the insulating member is a non-conductive synthetic resin.
By configuring the insulating member from a non-conductive synthetic resin in this way, the annular member can be reliably insulated at the slit portion, and the insulating member that matches the size and shape of the slit can be integrally molded, for example. Etc. can be easily manufactured.

The wireless function watch of the present invention is characterized in that the annular member is disposed at a position where it cannot be visually recognized by a viewer.
Further, the wireless function watch of the present invention is a conductive projecting portion in which the projecting portion constituting a part of the housing projects in a parallel direction from the housing,
The whole annular member is covered with the protrusion.

In addition, the wireless function watch of the present invention includes a turn-back receiving portion on a watch case constituting a part of the housing,
The projecting portion is a facing ring that is placed above the facing receiving portion,
The entire annular member is covered with the facing ring.

With this configuration, when the slit is provided in the annular member, the appearance of the annular member, the sense of quality, and the aesthetics of the watch itself are not affected even if an insulating member is not provided in the slit. . Moreover, since it is not necessary to arrange an insulating member, cost can be reduced.

The wireless function watch of the present invention is characterized in that the annular member is arranged at a position that can be visually recognized by a viewer.
By configuring in this way, for example, clock display, date display, day of the week display, month display, year display, battery remaining amount display, display of external environment measurement values such as pressure and temperature, reception of antennas, etc. By attaching an index indicating the function display of the clock such as the sensitivity display and the reception success / failure display on the antenna, the function display of the clock can be shown to an observer such as a watch carrier.

The wireless function watch of the present invention is characterized in that at least a part of the annular member is exposed without being covered by the protruding portion.
By configuring in this way, for example, clock display, date display, day of the week display, month display, year display, battery remaining amount display, display of external environment measurement values such as pressure and temperature, reception of antennas, etc. By attaching an index indicating the function display of the clock such as the sensitivity display and the reception success / failure display on the antenna, the function display of the clock can be shown to an observer such as a watch carrier.

The wireless function watch of the present invention is characterized in that at least a part of the annular member is exposed without being covered with the dial ring.
By configuring in this way, for example, clock display, date display, day of the week display, month display, year display, battery remaining amount display, display of external environment measurement values such as pressure and temperature, reception of antennas, etc. By attaching an index indicating the function display of the clock such as the sensitivity display and the reception success / failure display on the antenna, the function display of the clock can be shown to an observer such as a watch carrier.

The wireless function watch of the present invention is characterized in that the color tone of the viewing surface of the insulating member is the same color tone as the color tone of the viewing surface of the annular member.
In this way, by configuring the color tone of the viewing surface of the insulating member to be the same color tone as the viewing surface of the annular member, the insulating member becomes less visible and the aesthetic appearance of the annular member and the aesthetic appearance of the watch itself are improved. It will be.

Here, the “viewing surface” refers to a region of the outer surface that is visually recognized by an observer.
In addition, here, “same color tone” means that the color tone of the annular member and the insulating member are both within the range where they can be recognized as the same color tone, and the appearance of the color tone such as the shade of the color tone or light and dark. The above texture is not limited to perfect match. For example, a deep gold color, a light gold color, a light gold color, or a dark gold color are all assumed to be the same color tone of gold here.

  For example, even if the annular member has a light golden color tone and the insulating member has a dark golden color tone, if the annular member and the insulating member have the same golden color tone, the insulating member becomes difficult to be visually recognized. The beauty of the watch and the watch itself are improved.

The outer surface of the annular member and the insulating member other than the viewing surface may have the same color tone, and for example, all outer surfaces of the annular member and the insulating member may have the same color tone.
In addition, the wireless function watch of the present invention is characterized in that the color tone of the viewing surface of the insulating member has a metal appearance that is the same color tone as the metal appearance that is the color tone of the viewing surface of the annular member.

In this way, in particular, if the insulating member has a metal appearance similar to that of the annular member made of a conductive material, the insulating member is not easily seen, and a high-class feeling is given to the annular member.
In order to obtain a metal appearance similar to that of the annular member made of a conductive material, for example, the insulating member may be coated with a paint film by metallic coating having the same color as that of the annular member. As this metallic paint film, for example, a paint film mixed with a metallic pigment is employed.

For example, in order to obtain a stainless steel color, a coating film containing a stainless pigment containing iron, chromium, nickel, molybdenum, or the like as a component is coated.
For example, in order to obtain a gold color, a coating film containing a bronze pigment containing copper, zinc, iron or the like as a component is coated.

Further, for example, in order to obtain a silver color, a coating film containing an aluminum pigment containing aluminum or a nickel pigment containing nickel is coated.
In addition to these, various pigments such as pearl pigments, graphite pigments, and phthaloshanine flakes may be employed.

The process for coating the insulating member is as follows.
First, a base coating film is coated on the outer surface of the insulating member. Next, a metallic paint film is coated on the base paint film. Further, a clear coat, which is a transparent or translucent synthetic resin layer, is coated on the metallic paint film. By this clear coat, even when a metal is contained in the metallic coating film, the outermost surface of the coated insulating member maintains non-conductivity.

  In order to ensure non-conductivity of not only metallic coating film but also such single coating film or lamination, insulating top coating film such as clear coat may be adopted as the outermost layer. preferable.

  Examples of such insulating coating films include polyurethane resin paints, fluorine resin paints in which fluorine is mixed in polymer molecules forming the resin, vinyl chloride sol paints in which polyvinyl chloride resin is dispersed in a plasticizer, and oil-free polyesters. Silicone polyester resin paint consisting of silicone polyester resin modified with silicone intermediate, or oil-free polyester resin, acrylic resin paint, epoxy resin paint, silicone acrylic resin paint, vinyl chloride resin paint, lacquer, phenol resin paint, Chlorinated rubber paint is used.

The wireless function watch of the present invention is characterized in that the color tone of the viewing surface of the insulating member is different from the color tone of the viewing surface of the annular member.
Thus, the color tone of the visible face of the insulating member, by configuring such that different from the color tone of the visible face of the annular member, for example, a portion of the insulating member, aesthetic, or, as some information, For example, it can be easily recognized by an observer such as a watch wearer.

Here, that the insulating member and the annular member have different color tones refers to a combination of the above-noted same color tones.
The wireless function watch of the present invention is characterized in that the insulating member is an index indicating a function display of the watch.

Thus, for example, the clock display, date display, day display, month display, year display, battery remaining amount display, display of external environment measurement values such as pressure and temperature, antenna reception sensitivity display, antenna, etc. By using as an index indicating the function display of the watch such as the success / failure display in the watch, the function display of the watch can be shown to an observer such as a watch wearer, for example.

In particular, when an insulating member having a color tone and a different color tone on the viewing surface of the annular member is used as an index, such a function display of the timepiece can be easily seen by an observer.
If the annular member exhibits a metallic color tone, for example, the insulating member can exhibit a conspicuous color tone such as red, orange, and yellow. The color tone of the viewing surface of the insulating member may be the color tone of the material of the insulating member itself or the color tone of the coating film coated on the insulating member. Examples of this film include a paint film, a printed film, and a dry plating film.

In addition, the wireless function watch of the present invention is
The insulating member holds a conductive additional member;
The additional member is held by an insulating member so that the additional member can be visually recognized from the outside and does not come into contact with the annular member.

With such a configuration, the metallic appearance is imparted to the insulating member by the conductive additional member held by the insulating member, so that the beauty and luxury of the annular member are improved, and the beauty of the watch itself is improved. Will also improve.

In addition, since the additional member is held by the insulating member so as not to come into contact with the annular member, no eddy current is generated in the annular member, and the reception sensitivity of the antenna is improved.
The wireless function watch of the present invention is characterized in that the color tone of the viewing surface of the additional member is the same color tone as the color tone of the viewing surface of the annular member.

  In this way, by configuring the color tone of the viewing surface of the additional member to be the same color tone as the color tone of the viewing surface of the annular member, the additional member is less visible, and the aesthetic appearance of the annular member and the aesthetics of the watch itself are Will improve.

In the wireless function watch of the present invention, the color tone of the viewing surface of the additional member is different from the color tone of the viewing surface of the annular member.
In this way, by configuring the color tone of the viewing surface of the additional member to be different from the color tone of the viewing surface of the annular member, for example, the portion of the additional member is aesthetically or some information, For example, it is easy for a viewer such as a watch wearer to visually recognize.

In the wireless function watch of the present invention, the additional member is an index indicating a function display of the watch.
In this way, for example, the additional member may be a time display, date display, day of the week display, month display, year display, battery remaining amount display, external environment measurement value display such as pressure or temperature, antenna reception sensitivity display, antenna, etc. By using as an index indicating the function display of the watch such as the success / failure display in the watch, the function display of the watch can be shown to an observer such as a watch wearer, for example.

In particular, when an additional member having a color tone and a different color tone on the viewing surface of the annular member is used as an index, such a function display of the timepiece can be easily seen by an observer.
The wireless function watch of the present invention is characterized in that the annular member, the insulating member, and the additional member have substantially the same flat surface.

By comprising in this way, since an annular member, an insulating member, and an additional member are visually recognized integrally, the beauty | look and high-quality feeling of an annular member improve, and the beauty | look of the timepiece itself will also improve.
The wireless function watch of the present invention is characterized in that the additional member includes a cover portion that covers at least a part of the boundary between the annular member and the insulating member.

With this configuration, the boundary between the annular member and the insulating member is hidden by the covering portion of the additional member and is not visually recognized, so that the aesthetic appearance and luxury of the annular member are further improved.
The wireless function watch of the present invention is characterized in that an extending portion extending from the insulating member is formed between the cover portion of the additional member and the annular member.

  With this configuration, the covering portion of the conductive additional member that extends beyond the boundary between the annular member and the insulating member is blocked by the extending portion of the insulating member and contacts the conductive annular member. Will not.

As a result, since the conductive additional member and the annular member are reliably insulated, the occurrence of eddy current in the annular member is avoided, and the reception sensitivity of the antenna is improved.
In the wireless function watch of the present invention, the additional member is disposed in a recess formed in the insulating member.

By comprising in this way, an additional member can be reliably fixed in the recessed part formed in the insulating member.
Further, the additional member can be disposed in the recessed portion of the insulating member so that the additional member and the viewing surface of the insulating member form substantially the same plane, and the annular member, the insulating member, and the additional member are visually recognized integrally. Therefore, the beauty and luxury of the annular member are improved, and the beauty of the watch itself is also improved.

The wireless function watch according to the present invention is characterized in that an additional member is disposed between two insulating members disposed at a predetermined interval in the slit.
By comprising in this way, an additional member can be reliably fixed between two insulation members.

Further, the additional member can be disposed between the two insulating members so that the additional member and the viewing surface of the insulating member form substantially the same plane, and the annular member, the insulating member, and the additional member are integrally formed. Since it is visually recognized, the beauty and luxury of the annular member are improved, and the beauty of the watch itself is also improved.

In addition, the wireless function watch of the present invention includes an engaging convex portion protruding from one of the insulating member and the additional member, and an engaging hole portion formed at the other,
The additional member is attached to the insulating member by the engagement between the engagement convex portion and the engagement hole portion.

By comprising in this way, an additional member can be more reliably fixed to an insulating member by engagement with an engagement convex part and an engagement hole part.
The wireless function watch of the present invention is characterized in that the insulating member includes an indicator portion extending on the upper surface of the dial.

  With this configuration, when the insulating member is used as an index indicating the function display of the timepiece, the index portion extending on the upper surface of the dial plate clearly indicates the function display of the timepiece. An observer such as a portable person can easily see the function display of the watch.

The wireless function watch according to the present invention is characterized in that the additional member includes an indicator portion extending on an upper surface of the dial.
By configuring in this way, when the additional member is used as an index indicating the function display of the timepiece, the index part extending on the upper surface of the dial clearly indicates the function display of the timepiece. An observer such as a watch wearer can easily see the function display of the watch.

The wireless function watch of the present invention is characterized in that the insulating member includes a decorative member.
By comprising in this way, by providing the insulating member with a decorative member made of pyroxene such as jewels or precious stones, the beauty and luxury of the annular member are improved, and the beauty of the watch itself is also improved. .

In addition, the wireless function watch of the present invention includes an insulating region interposed therebetween so as to insulate between the protruding portion and the annular member.
With this configuration, no induced current is generated between the protruding portion and the annular member. Therefore, the antenna reception sensitivity is further improved by a synergistic effect with the improvement of the antenna reception sensitivity of the slit formed in the annular member. Will improve.

The wireless function watch of the present invention is characterized in that the insulating region is adhered to the protruding portion side.
By configuring in this way, for example, it is only necessary to stick a sheet-like insulating member to the protruding portion side, so that it becomes easy to incorporate the annular member into the watch case, work efficiency is improved, and manufacturing cost is reduced. Can do.

The wireless function watch of the present invention is characterized in that the insulating region is adhered to the annular member side.
By configuring in this way, for example, it is only necessary to stick a sheet-like insulating member to the annular member side, so that the annular member can be easily incorporated into the watch case, work efficiency is improved, and manufacturing costs are reduced. Can do.

  In the wireless function watch of the present invention, the insulating region is formed of an insulating film formed on at least one of the boundary surfaces between the protruding portion and the annular member. .

  By configuring in this way, for example, by coating an insulating material, an insulating region made of an insulating film can be formed on at least one of the boundary surfaces between the protruding portion and the annular member. Efficiency can be improved and manufacturing costs can be reduced.

In addition, the wireless function watch of the present invention is characterized by including an insulating region interposed between the counter ring and the annular member so as to insulate them.
With this configuration, no induced current is generated between the dial ring and the annular member. Therefore, the antenna reception sensitivity is further improved by a synergistic effect with the improvement of the antenna reception sensitivity of the slit formed in the annular member. Will improve.

The wireless function watch of the present invention is characterized in that the insulating region is adhered to the counter ring side.
By configuring in this way, for example, it is only necessary to attach the sheet-like insulating member to the facing ring side, so that it becomes easy to incorporate the annular member into the watch case, improving work efficiency, and reducing manufacturing costs. Can do.

The wireless function watch of the present invention is characterized in that the insulating region is adhered to the annular member side.
By configuring in this way, for example, it is only necessary to stick a sheet-like insulating member to the annular member side, so that the annular member can be easily incorporated into the watch case, work efficiency is improved, and manufacturing costs are reduced. Can do.

  In the wireless function watch of the present invention, the insulating region is composed of an insulating film formed on at least one of the boundary surfaces between the dial ring and the annular member. .

  By configuring in this way, for example, by coating an insulating material, an insulating region made of an insulating film can be formed on at least one of the boundary surfaces between the dial ring and the annular member. Efficiency can be improved and manufacturing costs can be reduced.

Further, in the wireless function watch of the present invention, the protruding portion is a bezel provided on the watch case,
An insulating region interposed between the bezel and the annular member is provided so as to insulate the bezel from the annular member.

  With this configuration, since no induced current is generated between the bezel and the annular member, the antenna reception sensitivity is further improved by a synergistic effect with the improvement of the antenna reception sensitivity of the slit formed in the annular member. Will do.

The wireless function watch of the present invention is characterized in that the insulating region is adhered to the bezel side.
By configuring in this way, for example, it is only necessary to stick a sheet-like insulating member to the bezel side, so that the annular member can be easily incorporated into the watch case, work efficiency can be improved, and manufacturing cost can be reduced. it can.

The wireless function watch of the present invention is characterized in that the insulating region is adhered to the annular member side.
By configuring in this way, for example, it is only necessary to stick a sheet-like insulating member to the annular member side, so that the annular member can be easily incorporated into the watch case, work efficiency is improved, and manufacturing costs are reduced. Can do.

  The wireless function watch according to the present invention is characterized in that the insulating region is composed of an insulating coating formed on at least one of the boundary surfaces between the bezel and the annular member.

  By configuring in this way, for example, by coating an insulating material, an insulating region made of an insulating film can be formed on at least one of the boundary surfaces between the bezel and the annular member, and work efficiency can be improved. The manufacturing cost can be reduced.

The wireless function watch according to the present invention is characterized in that the insulating region is disposed in the vicinity of the upper part of the antenna.
By disposing the insulating region in the vicinity of the upper portion of the antenna in this way, the insulating region disposed between the annular member and the projecting portion is located between the conductive annular member and the projecting portion above the antenna. Thus, since no induced current is generated, the receiving sensitivity of the antenna is improved.

  The wireless function watch of the present invention is characterized in that the insulating region is composed of two insulating regions disposed in the vicinity of the upper part of the antenna so as to face both open ends of the antenna.

  With this configuration, in the portion facing the open ends of the antenna, no induction current is generated between the conductive annular member and the projecting portion due to the two insulating regions. The signal is received at the open end, and the reception sensitivity of the antenna is improved.

  The wireless function watch according to the present invention is characterized in that the insulating region is formed of an insulating region disposed in the vicinity of the upper part of the antenna so as to face at least one open end of the antenna.

  With this configuration, at a portion facing the open end of at least one of the antennas, an insulating region disposed between the annular member and the projecting portion provides a gap between the conductive annular member and the watch case. Thus, since no induced current is generated, radio waves are received at one open end of the antenna, and the reception sensitivity of the antenna is improved.

In the wireless function watch of the present invention, the insulating coating is formed on the entire surface of the dial ring.
By comprising in this way, an insulating film can be formed, for example by immersing a dial ring in an insulating material liquid, work efficiency can improve, and manufacturing cost can be reduced.

In the wireless function watch of the present invention, the insulating coating is formed on the entire surface of the annular member.
By comprising in this way, an insulating film can be formed by immersing an annular member in an insulating material liquid, for example, work efficiency can be improved, and manufacturing cost can be reduced.

In addition, the wireless function watch of the present invention is
In the case where the protruding portion is formed of a conductive material,
A slit is provided in the projecting portion corresponding to the position of the slit formed in the annular member.

With this configuration, the antenna can receive with high sensitivity through the slit without being blocked by the conductive protrusion.
Therefore, the receiving sensitivity of the antenna is further improved by a synergistic effect with the improvement of the antenna receiving sensitivity of the slit formed in the annular member.

In addition, the wireless function watch of the present invention is
In the case where the protruding portion is a protruding portion formed of a conductive material,
A slit is provided in the projecting portion corresponding to the position of the slit formed in the annular member.

With this configuration, the antenna can receive with high sensitivity through the slit without being blocked by the conductive protrusion.
Therefore, the receiving sensitivity of the antenna is further improved by a synergistic effect with the improvement of the antenna receiving sensitivity of the slit formed in the annular member.

In addition, the wireless function watch of the present invention is
In the case where the protruding portion is a turn ring formed of a conductive material,
The slit is provided in the dial ring corresponding to the position of the slit formed in the annular member.

With this configuration, the antenna can receive with high sensitivity through the slit without being interrupted by the conductive dial ring.
Moreover, since the slit which divides the turning ring in the circumferential direction is formed, this slit divides the flow of the eddy current along the turning ring and prevents the generation of the eddy current.

  This prevents a decrease in antenna reception sensitivity due to eddy current flowing in the annular member, and further improves the antenna reception sensitivity due to a synergistic effect with the improvement in antenna reception sensitivity of the slit formed in the annular member. Will do.

In addition, the wireless function watch of the present invention is
In the case where the projecting portion is a bezel formed of a conductive material,
The slit is provided in the dial ring corresponding to the position of the slit formed in the annular member.

With this configuration, the antenna can receive with high sensitivity through the slit without being blocked by the conductive bezel.
Further, since the slit for dividing the bezel in the circumferential direction is formed, the slit divides the flow of eddy current along the bezel and prevents the generation of eddy current.

  This prevents a decrease in antenna reception sensitivity due to eddy current flowing in the annular member, and further improves the antenna reception sensitivity due to a synergistic effect with the improvement in antenna reception sensitivity of the slit formed in the annular member. Will do.

  According to the present invention, the conductive annular member disposed on the outer periphery of the dial improves the strength and impact resistance of the dial, and the slit for dividing the annular member in the circumferential direction is formed. The slit interrupts the flow of the eddy current along the annular member, thereby preventing the generation of the eddy current.

As a result, a decrease in the reception sensitivity of the antenna due to the eddy current flowing in the annular member is prevented, and the reception sensitivity of the antenna is improved.
Further, according to the present invention, there is an insulating region interposed between the conductive annular member arranged on the outer periphery of the dial and the protruding portion provided on the inner side from the housing. By being provided, it is possible to prevent an induced current from being generated between the annular member and the protruding portion.

As a result, a decrease in the reception sensitivity of the antenna due to the induced current flowing between the annular member and the protruding portion is prevented, and the reception sensitivity of the antenna is improved.
Furthermore, by forming a slit that divides the annular member in the circumferential direction and providing an insulating region between the annular member and the protruding portion, the receiving sensitivity of the antenna is further improved by a synergistic effect.

  In addition to the effects described above, the antenna reception sensitivity is further improved by forming slits in the projecting portion.

Hereinafter, embodiments (examples) of the present invention will be described in more detail with reference to the drawings.
Example 1
FIG. 1 is an exploded perspective view of an embodiment of a wireless function watch of the present invention, and FIG. 2 is a partially enlarged sectional view in the AA line direction of the assembled wireless function watch of FIG.

1 to 2, reference numeral 10 generally indicates the wireless function watch of the present invention.
The “clock with wireless function” as used in the present invention refers to, for example, a clock having a wireless function such as a personal computer communication function, a mobile phone function or a non-contact IC card function, and a long wave standard radio wave (carrier wave) including time information. It includes a radio timepiece having a radio function that receives and corrects the time based on the time information, a clock that is configured by combining any of these radio functions, and may include other radio functions. Of course.

As shown in FIGS. 1 to 2, the wireless function watch 10 of the present invention includes a housing 12.
The housing 12 includes a watch case 14 that forms a substantially cylindrical frame made of metal, a metal back cover 16 that is mounted in a sealed state so as to cover a lower surface opening of the watch case 14, and the watch case. 14 is provided with a windshield (glass) 18 that is mounted in a sealed state so as to cover the upper surface opening of 14.

  In addition to the case where the housing 12 has the back cover 16 as described above, there are various cases such as a case where the back cover 16 and the watch case 14 are integrated, and a case where the back cover 16 is also glass. Is included.

  The housing 12 includes a movement 20 that constitutes a timepiece driving unit, and a solar cell 22 that is disposed on the upper surface of the movement 20 and that drives the movement 20 by electromotive force of light.

  Further, on the upper surface of the solar cell 22, there is provided a dial plate 24 having a translucent function that transmits external light having a wavelength contributing to power generation of the solar cell 22 at least enough to drive the movement 20.

Further, an antenna 26 for receiving standard radio waves is attached to the small diameter portion 20a below the side portion of the movement 20.
In this embodiment, the antenna 26 is illustrated as a bar antenna including a rod-shaped magnetic core member serving as a core and a coil wound around the outer periphery of the magnetic core member. Of course, it is also possible to comprise.

  The dial plate 24 is not particularly limited as long as it has a translucent function that transmits external light having a wavelength that contributes to power generation of the solar cell 22, but for example, synthetic resin, wood, shellfish, precious stones. In addition, by using a non-conductive material such as ceramic or glass, it is easier for external radio waves to reach the antenna 26, so that the reception sensitivity of the antenna 26 can be improved.

  Further, the watch case 14 includes two sets of band attaching portions 28 protruding outward, and these band attaching portions 28 are arranged so as to be opposed to each other and spaced apart from each other. 14 is provided with a leg portion 30 extending from 14.

A wristwatch band (not shown) is connected between each of the leg portions 30.
Although not shown, a minute hand and an hour hand are arranged on the needle shaft 31 that protrudes from the movement 20 and penetrates the solar cell 22 and the dial plate 24. These minute hand and hour hand are located between the dial plate 24 and the windshield 18 and display time.

A conductive annular member 36 is disposed on the outer periphery of the dial 24, and the annular member 36 is provided with a slit that divides the annular member 36 in the circumferential direction.
In addition, as shown in the top view of the wireless function watch 10 in FIG. 3, the annular member 36 in this embodiment is covered with a projecting portion 32 provided so as to project inward from the main body portion of the watch case 14. It is not exposed and placed at a position where it cannot be seen by the viewer.

Thus, by arranging the conductive annular member 36 on the outer periphery of the dial 24, the strength and impact resistance of the dial 24 can be improved.
That is, for example, when a brittle material such as shellfish, precious stone, ceramic, glass or the like is employed as the dial 24, the dial 24 is incorporated depending on the strength and impact resistance of the conductive annular member 36. Even when an impact is applied during the assembly process, the dial 24 made of a brittle material is damaged or cracked due to the contact between the dial 24 and the protrusion 32 of the watch case 14. Can be prevented.

  The conductive material constituting the annular member 36 is, for example, gold, silver, copper, brass, aluminum, magnesium, zinc, titanium, or alloys thereof in consideration of such strength and impact resistance. Etc. are adopted. Further, for example, a titanium alloy, stainless steel, tantalum carbide, or the like may be employed.

A fixed (waterproof) packing 46 for fixing the windshield 18 in a sealed state is interposed on the inner peripheral side of the upper end of the watch case 14.
On the other hand, a core member 48 that protrudes inward is formed on the back cover 16, and a plurality of engagement protrusions 50 that are spaced from each other protrude from the outer peripheral side of the core member 48. It is installed. An engagement recess 52 into which the engagement protrusion 50 of the core member 48 of the back cover 16 is fitted is formed on the inner peripheral side near the lower end of the watch case 14.

A support frame 54 is interposed between the large-diameter portion 20 b above the side portion of the movement 20 and the upper end portion of the core member 48.
With this configuration, the engagement protrusion 50 of the core member 48 of the back cover 16 is engaged with the engagement recess 52 on the inner peripheral side in the vicinity of the lower end of the timepiece case 14. The movement 20, the solar cell 22, and the dial 24 are interposed between the protruding portion 32 formed on the inner peripheral side of the inner cover 48 and the upper end portion of the core member 48 of the back cover 16 via the support frame 54. It is fixed inside and accommodated.

  The support frame 54 is made of a nonconductive material such as a synthetic resin. When the watch case 14 constituting a part of the housing 12 is made of a conductive material such as stainless steel, the support frame 54 secures a gap along the plane direction between the conductive case and the antenna 26, and the antenna 26 High reception performance is maintained.

In FIG. 2, reference numeral 51 denotes a waterproof packing for sealing between the back cover 16 and the watch case 14 in a sealed state.
Further, in this embodiment, as shown in FIG. 4, the annular member 36 is fitted on the outer periphery of the dial 24, but the conductive annular member 36 may be disposed on the outer periphery of the dial 24, As shown in FIG. 5, the annular member 36 may be fitted into the recess 25 formed on the outer periphery of the dial 24.

  With this configuration, the dial 24 and the annular member 36 are integrated, and the dial 24 and the annular member 36 can be easily incorporated into the watch case 14, so that work efficiency can be improved and manufacturing costs can be reduced.

Further, as shown in FIG. 4, a substrate 24 a may be disposed below the dial 24 for reinforcement. The substrate 24a is made of a translucent material that transmits external light having a wavelength that contributes to power generation by the solar cell 22. Here, examples of the translucent material include plastic, glass, and ceramic, but are not limited thereto.

Although the substrate 24a is not shown in FIG. 5, the substrate 24a made of a translucent material may or may not be disposed below the dial 24, as in FIG.
By the way, in such a timepiece 10 with a wireless function, when the antenna 26 receives radio waves, an eddy current along the circumferential direction of the annular wall flows as an induced current in the conductive annular member 36. .

This eddy current cancels out the radio waves from the outside of the housing 12, and the reception sensitivity of the antenna 26 is extremely lowered.
In order to avoid such a phenomenon, in the wireless function watch 10 of the present invention, since the slit 56 that divides the annular member 36 in the circumferential direction is formed, the slit 56 extends along the annular member 36. The flow of the eddy current is interrupted and the generation of the eddy current is prevented.

As a result, a decrease in the reception sensitivity of the antenna 26 due to the eddy current flowing in the annular member 36 is prevented, and the reception sensitivity of the antenna 26 is improved.
In this case, the number and positions of the slits 56 formed in the annular member 36 are not particularly limited, but it is preferable to form them as follows for each reason.

That is, in the embodiment shown in FIG. 6, the slit 56 is arranged in the vicinity of the upper side of the antenna 26.
By arranging the slit 56 in the vicinity of the upper portion of the antenna 26 in this manner, the conductive annular member 36 that prevents the reception of radio waves does not exist above the antenna 26, so that the reception sensitivity of the antenna 26 is improved. become.

  In the embodiment shown in FIG. 7, the slit 56 includes two slits 56 a and 56 b disposed in the vicinity of the upper portion of the antenna 26 so as to face the open both ends 26 a and 26 b of the antenna 26.

  By configuring in this way, the conductive annular member 36 that prevents reception of radio waves by the two slits 56a and 56b does not exist in the portion facing the open both ends 26a and 26b of the antenna 26. Radio waves are received by the open ends 26a and 26b of the antenna 26 through the slits 56a and 56b, and the reception sensitivity of the antenna 26 is improved.

  Further, in the embodiment shown in FIG. 8, the slit 56 is opposed to at least one open end of the antenna 26 (FIG. 8 shows the case where it is provided facing the 26a for convenience of explanation). 26 is composed of a slit 56 a disposed in the vicinity of the upper portion of the head 26.

With this configuration, the conductive annular member 36 that prevents reception of radio waves by the slit 56a does not exist in the portion of the antenna 26 that faces the open end 26a. Thus, the radio wave is received by one open end portion 26a of the antenna 26, and the reception sensitivity of the antenna 26 is improved.
(Example 2)
FIG. 9 is a partially enlarged view for explaining a state in which the insulating member 64 is mounted in the dial 56 of the wireless function timepiece 10 according to another embodiment of the present invention and the slit 56 of the annular member 36 disposed on the outer periphery of the dial 24. FIG. 10 is a partially enlarged perspective view for explaining a state in which the insulating member 64 is mounted in the slit 56 in FIG.

  The wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 shown in FIGS. 1 to 2, and the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

The wireless function watch 10 of this embodiment includes an insulating member 64 disposed in the slit 56 of the annular member 36.
That is, as shown in FIGS. 9 and 10, the cross section of the insulating member 64 has substantially the same shape as the cross section of the annular member 36, and can be mounted in the slit 56. .

  With this configuration, a slit 56 that divides the annular member 36 in the circumferential direction is formed in the conductive annular member 36 disposed on the outer periphery of the dial 24, and the insulating member 64 is disposed in the slit 56. Therefore, the insulating member 64 divides the flow of the eddy current along the annular member 36 and prevents the generation of the eddy current.

As a result, a decrease in the reception sensitivity of the antenna 26 due to the eddy current flowing in the annular member 36 is prevented, and the reception sensitivity of the antenna 26 is improved.
Further, since the insulating member 64 is disposed in the slit 56 as described above, the strength of the annular member 36 is also maintained.

  In FIGS. 9 and 10 of this embodiment, as shown in FIG. 14 to be described later, in consideration of the case where the annular member 36 extends from the protruding portion 32 of the watch case 14 to the inside and is visible from the outside, A case where an index member 69 such as a time letter is arranged on the annular member 36 is shown.

  However, as in the embodiment of FIG. 1, the annular member 36 is not exposed by being covered with the protruding portion 32 provided so as to protrude inward from the main body portion of the watch case 14, and is not visible to the viewer. Further, as shown in FIGS. 9 and 10 of this embodiment and the embodiment of FIG. 14 described later, the watch case 14 extends from the protrusion 32 to the inside, and a part of the protrusion 32 is provided. It may be exposed without being covered by the cover, or may be disposed at a position where the entire portion is exposed without being covered with the protruding portion 32 and is visible to the viewer.

  Thus, when the annular member 36 is arranged at a position that can be visually recognized by the observer, the cross section of the insulating member 64 has substantially the same shape as the cross section of the annular member 36. The viewing surface forms substantially the same plane as the viewing surface of the annular member 36.

Therefore, since the viewing surface of the insulating member 64 is integrally seen with the annular member 36, the aesthetic appearance and luxury of the annular member 36 are improved, and the aesthetic appearance of the watch itself is also improved.
In this case, the insulating material constituting the insulating member 64 is not particularly limited. For example, a non-conductive insulating material such as synthetic resin, rubber, or ceramic can be employed.

  When the entire annular member 36 is disposed at a position that can be visually recognized by a viewer, for example, a conductive member coated with an insulating member or an insulating film, or a slit is provided on the lower surface of the protruding portion 32. It is desirable that another member, such as a conductive member, that is configured by a member that does not decrease the radio wave reception sensitivity of the antenna 26 is disposed.

It is also possible to use a member in which a nonconductive film is coated on a conductive material. In this case, the conductive material constituting the insulating member 64 is, for example, gold, silver, copper, brass, aluminum, magnesium, zinc, titanium, or the like, as with the conductive material constituting the annular member 36. An alloy of the above can be used. Further, for example, a titanium alloy, stainless steel, tantalum carbide, or the like can be employed.

  And as a non-conductive film coated with the conductive material constituting this insulating member, that is, as the insulating film, for example, a non-conductive paint film, a non-conductive print film, a non-conductive dry type An example is a plating film.

Moreover, as such an insulating film, for example,
・ CVD film such as DLC (Diamond Like Carbon)
・ Insulating coatings of organic materials such as acrylic materials, urethane materials, or cellulose materials,
・ Chromium compound coatings containing chromium compounds or aluminum oxide coatings containing aluminum oxide compounds,
Etc. can be adopted.

  As the chromium compound-based coating, for example, a chromium oxide-based coating containing a chromium oxide compound, a chromium nitride-based coating including a chromium nitride compound, or a chromium carbide-based coating including a chromium carbide compound can be employed.

Further, instead of such an insulating coating, an insulating member 64 in which an insulating sheet made of synthetic resin, rubber, or the like is bonded to a conductive material constituting the insulating member 64 may be used.
In this case, if the insulating member 64 is a non-conductive synthetic resin, the annular member 36 can be reliably insulated at the slit 56, and the insulating member 64 that matches the size and shape of the slit 56 is, for example, It can be easily manufactured by integral molding.

Moreover, it is preferable that the insulating member 64 is fixed to the annular member 36 so that the insulating member 64 is not inadvertently dropped from the slit 56 of the annular member 36. As the fixing means, for example, mechanical engaging means such as fitting, press-fitting, joining, insert molding, etc. can be employed.
(Example 3)
FIG. 11 is a partially enlarged cross-sectional view similar to FIG. 2 of the wireless function watch 10 of another embodiment of the present invention, and shows an annular member 36 and a protrusion 32 provided so as to protrude inward from the housing 12. It is a partial expanded sectional view explaining the state which provided the insulation area | region 38 between.

  The wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 shown in FIGS. 1 to 2, and the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

  In the wireless function watch 10 of this embodiment, as shown in FIG. 11, an insulating region 38 is disposed between the projecting portion 32 provided so as to project inside the housing 12 and the annular member 36. Yes.

  By providing such an insulating region 38, conduction between the conductive watch case 14 and the conductive annular member 36 is interrupted and no induced current is generated. Therefore, the annular member 36 and the watch case 14 Decrease in the reception sensitivity of the antenna 26 due to the eddy current flowing between them is prevented, and the reception sensitivity of the antenna 26 is improved.

Further, as shown in FIG. 12, by combining the present embodiment and the first and second embodiments,
-Insulating region 38 and slit 56,
Insulating region 38, slit 56, and insulating member 64 disposed in slit 56
In combination, the eddy current can be prevented from flowing through the annular member 36 and the induced current can be prevented from flowing between the conductive watch case 14 and the conductive annular member 36. Due to the effect, the reception sensitivity of the antenna 26 is further improved.

  In this case, the number and formation positions of the insulating regions 38 are not particularly limited, but the insulating regions may be provided over the entire circumferential direction of the annular member 36. It is preferable for each reason to form in this way.

That is, the insulating region 38 may be disposed in the vicinity of the upper portion of the antenna 26 in the same manner as the arrangement of the slits 56 in the embodiment shown in FIG.
By disposing the insulating region 38 in the vicinity of the upper portion of the antenna 26 as described above, the conductive annular member 36 is disposed above the antenna 26 by the insulating region 38 disposed between the annular member 36 and the watch case 14. Since no induced current is generated between the watch case 14 and the watch case 14, the reception sensitivity of the antenna 26 is improved.

  Similarly to the arrangement of the slits 56 in the embodiment shown in FIG. 7, the insulating region 38 is composed of two insulating regions 38 disposed in the vicinity of the upper side of the antenna 26 so as to oppose the open ends of the antenna 26. May be.

  With this configuration, no induced current is generated between the conductive annular member 36 and the watch case 14 due to the two insulating regions 38 in the portion of the antenna 26 that faces the open ends 26a and 26b. Therefore, radio waves are received by the open ends 26a and 26b of the antenna 26, and the reception sensitivity of the antenna 26 is improved.

  Similarly to the arrangement of the slits 56 in the embodiment shown in FIG. 8, the insulating region 38 is disposed in the vicinity of the upper side of the antenna 26 so as to face at least one open end portion 26 a of the antenna 26. You may comprise.

  With this configuration, at a portion of the antenna 26 facing the open end portion 26a, the conductive annular member 36 and the conductive annular member 36 are separated by the insulating region 38 disposed between the annular member 36 and the watch case 14. Since no induced current is generated between the watch case 14 and the watch case 14, radio waves are received by one open end portion 26a of the antenna 26, and the reception sensitivity of the antenna 26 is improved.

In this case, the insulating region 38 can be composed of an insulating member disposed between the annular member 36 and the watch case 14.
The insulating member constituting such an insulating region 38 is not particularly limited, and for example, a non-conductive insulating member such as synthetic resin, rubber, or ceramic can be employed.

  It is also possible to use a member in which a nonconductive film is coated on a conductive material. In this case, as the conductive material constituting the insulating member, for example, gold, silver, copper, brass, aluminum, magnesium, zinc, titanium, or these can be used as in the case of the conductive material constituting the annular member 36. An alloy or the like can be used. Further, for example, a titanium alloy, stainless steel, tantalum carbide, or the like can be employed.

  And as a non-conductive film coated with the conductive material constituting this insulating member, that is, as the insulating film, for example, a non-conductive paint film, a non-conductive print film, a non-conductive dry type An example is a plating film.

Moreover, as such an insulating film, for example,
・ CVD film such as DLC (Diamond Like Carbon)
・ Insulating coatings of organic materials such as acrylic materials, urethane materials, or cellulose materials,
・ Chromium compound coatings containing chromium compounds or aluminum oxide coatings containing aluminum oxide compounds,
Etc. can be adopted.

  As the chromium compound-based coating, for example, a chromium oxide-based coating containing a chromium oxide compound, a chromium nitride-based coating including a chromium nitride compound, or a chromium carbide-based coating including a chromium carbide compound can be employed.

Further, instead of such an insulating coating, an insulating member made of a synthetic resin or rubber may be attached to a conductive material constituting the insulating member.
In this case, the insulating member can also be attached to the annular member 36 side which is the annular member side.

  By configuring in this way, for example, it is only necessary to stick a sheet-like insulating member to the annular member 36 side, so that the annular member 36 side, that is, the dial 24 can be easily incorporated into the watch case 14, and work efficiency is improved. The manufacturing cost can be reduced.

Further, the insulating member can be attached to the watch case 14 side.
With this configuration, for example, it is only necessary to stick a sheet-like insulating member to the watch case 14 side, so that the annular member 36, that is, the dial 24 can be easily incorporated into the watch case 14, and the work efficiency is improved. In addition, the manufacturing cost can be reduced.

Further, the insulating region 38 can also be constituted by an insulating film formed on at least one of the boundary surfaces between the annular member 36 and the watch case 14.
By configuring in this way, for example, by forming an insulating material by painting, vapor deposition, or the like, an insulating region made of an insulating film is formed on at least one of the boundary surfaces between the annular member 36 and the watch case 14. It can be formed, work efficiency can be improved, and manufacturing cost can be reduced.

In this case, when an insulating film is formed on the annular member 36, it can be formed on the entire surface of the annular member 36 as shown in FIG.
By comprising in this way, an insulating film can be formed by immersing the annular member 36 in an insulating material liquid, for example, work efficiency can be improved, and manufacturing cost can be reduced.
Example 4
FIG. 14 is a top view for explaining a state in which the annular member 36 of the wireless function watch 10 of another embodiment of the present invention is disposed at a position where it can be visually recognized by a viewer.

  The wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 shown in FIGS. 1 to 2, and the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

  In the wireless function watch 10 of this embodiment, the annular member 36 arranged on the outer periphery of the dial 24 extends from the protruding portion 32 of the watch case 14 to the inside and is arranged at a position that can be seen by the viewer.

The insulating member 64 of this embodiment can be made of the same material as the insulating member 64 of the embodiment shown in FIGS.
Thus, when the annular member 36 is arranged at a position visually recognized by the observer, the color tone of the viewing surface of the insulating member 64 arranged in the slit 56 of the annular member 36 is set to the color tone of the viewing surface of the annular member 36. The same color tone can also be used.

  Thus, by configuring the color tone of the viewing surface of the insulating member 64 to be the same color tone as the color tone of the viewing surface of the annular member 36, the insulating member 64 becomes less visible and the aesthetic appearance of the annular member 36, the timepiece The beauty of itself will be improved. The “viewing surface” refers to a region of the outer surface that is visible to the viewer.

Further, the color tone of the viewing surface of the insulating member 64 may be different from the color tone of the viewing surface of the annular member 36.
Thus, by configuring the color tone of the viewing surface of the insulating member 64 to be different from the color tone of the viewing surface of the annular member 36, for example, the portion of the insulation member 64 is aesthetically or somewhat For example, the information can be easily viewed by an observer such as a watch wearer.

  In this case, the “same color tone” means that the color tone of the annular member 36 and the insulating member 64 are within the range where both can be recognized as the same color tone, and the appearance of the color tone such as the shade or lightness of the color tone. The above texture is not limited to perfect match.

  Note that the color tone of the viewing surfaces of the annular member 36 and the insulating member 64 is the color tone of the film coated on the annular member 36 and the insulating member 64 even if the color tone of the material itself of the annular member 36 and the insulating member 64 is. May be.

Therefore, the “different color tone” means a combination of color tones where the color tone of the viewing surface of the annular member 36 and the insulating member 64 is not recognized as the same color tone.
In addition, as shown by the insulating member 64 of the embodiment shown in FIGS. 9 and 10, an indicator member 69 such as a time letter can be disposed on the annular member 36.
Further, the insulating member 64 can be used as an index indicating the function display of the timepiece.

  In this way, the insulating member 64 can be provided with, for example, time display, date display, day of the week display, month display, year display, battery remaining amount display, display of external environment measurement values such as pressure and temperature, and reception sensitivity display of the antenna 26. By using an index indicating the function display of the watch such as the success / failure display of the antenna 26, the function display of the watch can be shown to an observer such as a watch wearer.

In particular, when the color tone of the viewing surface of the annular member 36 and the insulating member 64 having a different color tone are used as an index, the function display of such a timepiece can be easily seen by an observer.
In this case, as the number and the formation position of the insulating members 64, as in the case of the slit 56 in the embodiment of FIGS.
A method of arranging the insulating member 64 in the vicinity of the upper portion of the antenna 26 as in the embodiment shown in FIG.
As in the embodiment shown in FIG. 7, the insulating member 64 is composed of two insulating members 64 a and 64 b disposed in the vicinity of the upper portion of the antenna 26 so as to face the open ends 26 a and 26 b of the antenna 26. Method,
A method of forming the insulating member 64 from the insulating member 64a disposed in the vicinity of the upper side of the antenna 26 so as to face at least one of the open ends 26a of the antenna 26, as in the embodiment shown in FIG.
Etc. can be adopted.
(Example 5)
FIG. 15 is a partially enlarged perspective view similar to FIG. 9 of the wireless function watch 10 of another embodiment of the present invention, and is a partially enlarged perspective view for explaining a state in which the insulating member 64 and the additional member 65 are mounted in the slit 56. 16 and 16 are partially enlarged perspective views for explaining a state in which the insulating member 64 and the additional member 65 are mounted in the slit 56 in the wireless function watch 10 of FIG.

  The wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 shown in FIGS. 1 to 2, and the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

  In the wireless function watch 10 of this embodiment, the case where the annular member 36 arranged on the outer periphery of the dial 24 extends from the protruding portion 32 of the watch case 14 to the inside and is disposed at a position that can be seen by a viewer is shown. Is.

  However, as in the embodiment of FIG. 1, the annular member 36 is not exposed by being covered with the protruding portion 32 provided so as to protrude inward from the main body portion of the watch case 14, and is not visible to the viewer. Further, as shown in the embodiments of FIGS. 9, 10 and 14 of this embodiment, the watch case 14 extends from the protrusion 32 to the inside, and a part thereof covers the protrusion 32. It may be exposed without being broken, or it may be exposed without being covered by the protrusion 32 and may be disposed at a position where it can be visually recognized by a viewer.

  That is, in the wireless function watch 10 of this embodiment, the insulating member 64 holds the conductive additional member 65, and the additional member 65 can be visually recognized from the outside, and the annular member 36. It is held by the insulating member 64 so as not to contact.

  Specifically, the additional member 65 is disposed in the recess 64c formed in the insulating member 64, and the additional member 65 can be securely fixed in the recess 64c formed in the insulating member 64. Yes.

  In addition, it is preferable that the additional member 65 is fixed to the insulating member 64 so that the additional member 65 is not inadvertently dropped from the concave portion 64c of the insulating member 64. As this fixing means, for example, mechanical joining means such as fitting, press-fitting, joining, and insert molding are employed. For the joining layer that joins the insulating member 64 and the additional member 65, for example, an adhesive, an adhesive, or a double-sided tape is used.

By comprising in this way, since the metallic appearance is provided to the insulating member 64 by the conductive additional member 65 held by the insulating member 64, the aesthetics and luxury of the annular member 36 are improved, The aesthetics of the watch itself will also be improved.

Further, since the additional member 65 is held by the insulating member 64 so as not to contact the annular member 36, eddy current does not occur in the annular member 36, and the receiving sensitivity of the antenna 26 is improved.
In this case, the color tone of the viewing surface of the additional member 65 can be the same color tone as the color tone of the viewing surface of the annular member 36.

  In this way, by configuring the color tone of the viewing surface of the additional member 65 to be the same color tone as the color tone of the viewing surface of the annular member 36, the additional member 65 becomes difficult to be visually recognized, and the beauty of the annular member 36, the timepiece The beauty of itself will be improved.

Further, the color tone of the viewing surface of the additional member 65 may be different from the color tone of the viewing surface of the annular member 36.
In this way, by configuring the color tone of the viewing surface of the additional member 65 to be different from the color tone of the viewing surface of the annular member 36, for example, the portion of the additional member 65 is aesthetically pleasing or somehow For example, the information can be easily viewed by an observer such as a watch wearer.

Further, the additional member 65 can be used as an index indicating the function display of the timepiece.
That is, for example, the additional member 65 includes a time display, date display, day of the week display, month display, year display, battery remaining amount display, display of external environment measurement values such as pressure and temperature, reception sensitivity display of the antenna 26, antenna, and the like. By using as an index indicating the function display of the watch such as the success / failure display in 26, the function display of the watch can be shown to an observer such as a watch wearer, for example.

In this case, as shown in FIG. 17, the additional member 65 itself may be used as an index indicating the function display of the watch.
Further, such an index may be formed on the viewing surface of the additional member 65. Further, the additional member 65 may be a product display member such as a mark or emblem representing a brand name, a manufacturer name, a product name, or the like.

Further, as shown in FIG. 18, the additional member 65 may be a decorative member 66 that causes a viewer to be beautiful.
By comprising in this way, by providing the insulating member 64 with the decorative member 66 made of pyroxene such as gemstone or precious stone, the aesthetic appearance and luxury of the annular member 36 are improved, and the aesthetic appearance of the watch itself is also improved. It will be.

In particular, when the color tone of the viewing surface of the annular member 36 and the additional member 65 having a different color tone are used as an index, such a function display of the timepiece can be easily viewed by an observer.
Further, the viewing surfaces of the annular member 36, the insulating member 64, and the additional member 65 may be formed to be substantially the same plane.

By comprising in this way, since the annular member 36, the insulating member 64, and the additional member 65 are visually recognized integrally, the beauty | look and high-class feeling of the annular member 36 improve, and the beauty | look of the timepiece itself is also improved. Become.

The material constituting the additional member 65 is not particularly limited, and the same material as the annular member 36 can be used.
(Example 6)
FIG. 19 is a partially enlarged perspective view similar to FIG. 9 of the wireless function watch 10 of another embodiment of the present invention, and is a partially enlarged perspective view illustrating a state in which the insulating member 68 and the additional member 65 are mounted in the slit 56. 20 is a partially enlarged perspective view for explaining a state in which the insulating member 68 and the additional member 65 are mounted in the slit 56 in the wireless function watch 10 of FIG.

  The wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 shown in FIGS. 1 to 2, and the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

  In FIG. 19 and FIG. 20 of this embodiment, as shown in the embodiment of FIG. 14, the case where the annular member 36 extends from the protrusion 32 of the watch case 14 to the inside and is visible from the outside is considered. The case where the index member 69 such as a time letter is arranged on the annular member 36 is shown.

However, as in the embodiment of FIG. 1, the annular member 36 is not exposed by being covered with the protruding portion 32 provided so as to protrude inward from the main body portion of the watch case 14, and is not visible to the viewer. As shown in the embodiment of FIGS. 9, 10 and 14 of this embodiment, the watch case 14 extends from the protruding portion 32 to the inside and can be seen from the viewer. May be.

In the wireless function watch 10 of this embodiment, the additional member 65 is disposed between the two insulating members 68 a and 68 b that are disposed in the slit 56 at a predetermined interval.
With this configuration, the additional member 65 can be reliably fixed between the two insulating members 68a and 68b.

Further, the additional member 65 can be disposed between the two insulating members 68a and 68b so that the additional member 65 and the viewing surfaces of the insulating members 68a and 68b form substantially the same plane. Since the members 68a and 68b and the additional member 65 are integrally viewed, the beauty and luxury of the annular member 36 are improved, and the beauty of the timepiece itself is also improved.

  The wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 shown in FIGS. 1 to 2, and the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

  In FIG. 21 of this embodiment, as shown in the embodiment of FIG. 14, the annular member 36 extends from the protrusion 32 of the watch case 14 to the inside and is visible from the outside. 36 shows a case where an index member 69 such as a time letter is arranged.

In the wireless function watch 10 of this embodiment, the insulating member 64 includes an indicator portion extending on the upper surface of the dial 24.
By configuring in this manner, when the insulating member 64 is used as an index indicating the function display of the timepiece, the index portion extending on the upper surface of the dial 24 clearly indicates the function display of the timepiece, For example, an observer such as a watch wearer can easily see the function display of the watch.

  In this case, although not shown, the insulating member 64 holds the conductive additional member 65 as in the embodiment of FIGS. 15 and 16, and this additional member 65 extends to the upper surface of the dial 24. It is also possible to constitute the indicator part.

By configuring in this way, when the additional member 65 is used as an index indicating the function display of the timepiece, the index portion extending on the upper surface of the dial 24 clearly indicates the function display of the timepiece, An observer such as a watch wearer can easily see the function display of the watch.
(Example 8)
FIG. 22 is a partially enlarged perspective view similar to FIG. 8 of the wireless function watch 10 according to another embodiment of the present invention. 23 is a partially enlarged perspective view for explaining a state in which the insulating member 64 and the additional member 65 are mounted in the slit 56 in the wireless function watch 10 of FIG.

  The wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 shown in FIGS. 1 to 2, and the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

In the wireless function watch 10 of this embodiment, as shown in FIGS.
5 includes a cover 70 that covers at least a part of the boundary between the annular member 36 and the insulating member 64.

With this configuration, the boundary between the annular member 36 and the insulating member 64 is hidden by the covering portion 70 of the additional member 65 and is not visually recognized, so that the aesthetic appearance and luxury of the annular member 36 are further improved.

  In this case, as shown in FIGS. 22 and 23, in order to attach the additional member 65 to the insulating member 64, in this embodiment, an engagement convex portion 65a is formed on the back surface of the additional member. Correspondingly, an engaging hole 64d is formed in the insulating member, and the additional member 65 is attached to the insulating member 64 by the engagement between the engaging convex portion 65a and the engaging hole 64d. .

With this configuration, the additional member 65 can be more securely fixed to the insulating member 64 by the engagement between the engagement convex portion 65a and the engagement hole portion 64d.
In this case, the additional member is made into the insulating member by engaging the engaging convex portion protruding from one of the insulating member 64 and the additional member 65 and the engaging hole formed in the other. What is necessary is just to attach, and it is also possible to provide an engagement hole part in an additional member, and to provide an engagement convex part in an insulating member.

Furthermore, in this case, as shown in FIG. 23, it is desirable to form an extending portion that extends from the insulating member 64 between the covering portion 70 of the additional member 65 and the annular member 36.
With this configuration, the covering portion 70 of the conductive additional member 65 extending beyond the boundary between the annular member 36 and the insulating member 64 is obstructed by the extending portion of the insulating member 64, so that the conductive The annular member 36 is not contacted.

As a result, since the conductive additional member 65 and the annular member 36 are reliably insulated, an eddy current is prevented from being generated in the annular member 36, and the reception sensitivity of the antenna is improved.
In this case, in the embodiment shown in FIGS. 22 to 23, the extending portion extending from the insulating member 64 is set to be shorter than the covering portion 70 of the additional member 65. As shown in the figure, the extending portion extending from the insulating member 64 has substantially the same extension distance as the covering portion 70 of the additional member 65, so that the covering portion 70 of the conductive additional member 65 is completely In addition, the conductive member is prevented from coming into contact with the extending portion of the insulating member 64 and the eddy current is prevented from being generated in the annular member 36, and the reception sensitivity of the antenna is improved. .
Example 9
FIG. 25 is a partially enlarged cross-sectional view similar to FIG. 2 of the wireless function watch 10 of another embodiment of the present invention, and illustrates a state in which an insulating region 61 is provided between the dial ring 60 and the annular member 36. It is a partial expanded sectional view.

  The wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 shown in FIGS. 1 to 2, and the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

In the wireless function watch 10 of this embodiment, an insulating region 61 is provided between the dial ring 60 and the conductive annular member 36.
As described above, by providing the insulating region 61 between the turn ring 60 and the annular member 36, when the antenna 26 receives radio waves, the conductive turn ring 60 and the conductive annular member 36 are not connected. Therefore, the reception sensitivity of the antenna 26 is improved.

The insulating region 61 may be the same as the insulating region 38 described in the embodiment of FIG.
In addition, as shown in FIG. 26, an insulating film 63 can be formed as an insulating region on the entire surface of the dial ring 60. In this case, for example, the insulating coating 63 can be formed by immersing the dial ring 60 in the insulating material liquid. Further, the facing ring 60 itself may be formed of an insulating member. Here, the same material as the insulating member 64 described above can be used as the insulating member.
(Example 10)
FIG. 27 is a partially enlarged cross-sectional view similar to FIG. 2 of the wireless function watch 10 of another embodiment of the present invention, and illustrates a state where an insulating region 81 is provided between the bezel 80 and the annular member 36. It is an expanded sectional view.

  The wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 shown in FIGS. 1 to 2, and the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

In the wireless function watch 10 of this embodiment, an insulating region 81 is provided between the bezel 80 and the conductive annular member 36.
Thus, by providing the insulating region 81 between the bezel 80 and the annular member 36, the antenna 26 flows between the conductive bezel 80 and the conductive annular member 36 when receiving the radio wave. Since the shielding action of the radio wave caused by the induced current can be suppressed, the reception sensitivity of the antenna 26 is improved.

The insulating region 81 may be the same as the insulating region 38 described in the embodiment of FIG.
(Example 11)
FIG. 28 is a partially enlarged perspective view of the wireless function watch 10 according to another embodiment of the present invention, and shows a state in which a slit is provided in the protruding portion 32 corresponding to the position of the slit 56 formed in the annular member 36. It is a partial expansion perspective view to explain.

  The wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 shown in FIGS. 1 to 2, and the same reference numerals are assigned to the same components. Detailed description thereof will be omitted.

In the wireless function watch 10 of this embodiment, the protrusion 32 is also provided with a slit corresponding to the position of the slit 56 formed in the annular member 36.
As described above, since the projecting portion 32 is also provided with the slit, the radio wave received by the antenna 26 is not blocked by the conductive projecting portion 32 and can be received through the slit. Due to the synergistic effect with the effect of providing the slit 56 in the antenna, the radio wave reception sensitivity is further improved.

  In addition, as shown in FIGS. 29 to 30, in the case where the counter ring 60 or the bezel 80 is provided instead of the protruding portion 32, the counter part correspondingly corresponds to the position of the slit 56 of the annular member 36. By providing the ring 60 or the bezel 80 with a slit, the radio wave reception sensitivity is improved.

In this case, in order to maintain waterproofness and strength, an insulating member can be disposed in the dial ring 60 and the slit provided in the bezel 80 as necessary.
The preferred embodiment of the present invention has been described above, but the present invention is not limited to this. For example, in the above embodiment, the watch case 14 constitutes a substantially cylindrical frame made of metal. However, the shape of the watch case 14 is not limited to this, and may be, for example, a substantially rectangular shape or a substantially oval cylindrical shape.

  In addition, the structure of the wireless function watch 10 according to the present invention exhibits the above-described remarkable effects when applied to a wristwatch. However, the structure of the wireless function watch in the present invention can be applied to, for example, a table clock or a wall clock, in addition to a wristwatch.

  Furthermore, a slit may be formed in a component constituting the housing 12 in the present invention, for example, the watch case 14, or a slit may be formed only in the annular member 36 without forming a slit in the watch case 14. It doesn't matter. Regardless of the presence or absence of slits in the watch case 14, according to the present invention, a decrease in the reception sensitivity of the antenna 26 due to the eddy current of the annular member 36 is avoided, so that the reception sensitivity of the antenna 26 is improved. As described above, various modifications can be made without departing from the object of the present invention.

FIG. 1 is an exploded perspective view of an embodiment of a wireless function watch of the present invention. FIG. 2 is a partially enlarged cross-sectional view in the AA line direction of the assembled state of the wireless function watch of FIG. FIG. 3 is a top view of the embodiment showing the position of the annular member of the present invention. FIG. 4 is a partially enlarged view showing a state where the annular member 36 is fitted to the outer periphery of the dial 24. FIG. 5 is a partially enlarged view showing a state in which the annular member 36 is fitted into the recess 25 formed on the outer periphery of the dial 24. FIG. 6 is a top view of an embodiment showing the arrangement of the slits 56 of the wireless function watch of the present invention. FIG. 7 is a top view of an embodiment showing the arrangement of the slits 56 of the wireless function watch of the present invention. FIG. 8 is a top view of the embodiment showing the arrangement of the slits 56 of the wireless function watch of the present invention. FIG. 9 is a partially enlarged view for explaining a state in which the insulating member 64 is mounted in the dial 56 of the wireless function timepiece 10 according to another embodiment of the present invention and the slit 56 of the annular member 36 disposed on the outer periphery of the dial 24. FIG. FIG. 10 is a partially enlarged view for explaining a state in which the insulating member 64 is mounted in the slit 56 in FIG. FIG. 11 is a partially enlarged view for explaining a state in which an insulating region 38 is provided between the annular member 36 of the wireless function watch 10 of another embodiment of the present invention and the protrusion 32 provided on the inner side from the housing 12. It is. FIG. 12 is a partially enlarged perspective view illustrating a state in which an insulating region 38 is provided between the annular member 36 and the protrusion 32 provided on the inner side from the housing 12 in the wireless function watch 10 according to the embodiment of the present invention. It is. FIG. 13 is a partially enlarged cross-sectional view in the case where the insulating coating 39 is formed on the entire surface of the annular member 36 in FIG. FIG. 14 is a top view for explaining a state in which the annular member 36 of the wireless function watch 10 of another embodiment of the present invention is disposed at a position where it can be visually recognized by a viewer. FIG. 15 is a partially enlarged perspective view illustrating a state in which the insulating member 64 and the additional member 65 are mounted in the slit 56 of the wireless function watch 10 of another embodiment of the present invention. FIG. 16 is a partially enlarged perspective view for explaining a state where the insulating member 64 and the additional member 65 are mounted in the slit 56 in FIG. FIG. 17 is a partially enlarged perspective view of the wireless function timepiece 10 of FIG. 15 when the additional member 65 itself is used as an index indicating the function display of the timepiece. FIG. 18 is a partially enlarged perspective view of the wireless function watch 10 of FIG. 15 in which a decorative member 66 is provided instead of the additional member 65. FIG. 19 is a partially enlarged perspective view illustrating a state in which the insulating member 64 and the additional member 65 are mounted in the slit 56 of the wireless function watch 10 of another embodiment of the present invention. 20 is a partially enlarged perspective view illustrating a state in which the insulating member 64 and the additional member 65 are mounted in the slit 56 in FIG. FIG. 21 is a partially enlarged perspective view similar to FIG. 9 of the wireless function watch 10 of another embodiment of the present invention. FIG. 22 is a partially enlarged perspective view illustrating a state in which the insulating member 64 and the additional member 65 are mounted in the slit 56 of the wireless function watch 10 of another embodiment of the present invention. FIG. 23 is a partially enlarged perspective view illustrating a state in which the insulating member 64 and the additional member 65 are mounted in the slit 56 in FIG. FIG. 24 is a partially enlarged perspective view in FIG. 23 in which the extension distance of the extension portion is substantially the same as that of the cover portion 70 of the additional member 65. FIG. 25 is a partially enlarged cross-sectional view for explaining a state in which an insulating region 61 is provided between the dial ring 60 and the annular member 36 of the wireless function watch 10 of another embodiment of the present invention. FIG. 26 is a partially enlarged cross-sectional view when the insulating coating 63 is formed on the entire surface of the dial ring 60 in FIG. FIG. 27 is a partially enlarged cross-sectional view for explaining a state in which an insulating region 81 is provided between the bezel 80 and the annular member 36 of the wireless function watch 10 of another embodiment of the present invention. FIG. 28 is a partially enlarged perspective view illustrating a state in which the protrusion 32 is provided with a slit corresponding to the position of the slit 56 formed in the annular member 36 in the wireless function watch 10 of another embodiment of the present invention. FIG. FIG. 29 is a partially enlarged perspective view in the case where a facing ring 60 is provided in place of the protruding portion 32 in FIG. FIG. 30 is a partially enlarged perspective view in the case where a bezel 80 is provided instead of the protrusion 32 in FIG. FIG. 31 is an exploded perspective view of an example of a conventional wireless function watch.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Watch 12 with radio | wireless function Housing 14 Watch case 16 Back cover 18 Windshield 20 Movement 20a Small diameter part 20b Large diameter part 22 Solar cell 24 Dial 24a Substrate 25 Recess 26 Antenna 26a Open end part 26b Open end part 28 Band attachment part 30 Leg Portion 31 Needle shaft 32 Protruding portion 32 Protruding portion 36 Annular member 38 Insulating region 38a Insulating region 39 Insulating coating 46 Packing 48 Core member 50 Engaging protruding portion 51 Reference numeral 52 Engaging recess 54 Support frame 56 Slit 56a Slit 56b Slit 60 Rotating ring 61 Insulating region 62 Mirror receiving part 63 Insulating film 64 Insulating member 64a Slit 64b Slit 64c Recessed part 64d Engaging hole 65 Additional member 65a Engaging convex part 66 Decoration member 68a Insulating member 68b Insulating member 69 Indicator member 70 Covering part 80 Bezel 81 Insulation 85 slits 100 radio clock 102 housing 104 watch case 106 rear cover 108 windshield 110 movement 112 solar cell 114 dial 116 antenna 118 band attachment portion 120 leg 122 slit

Claims (12)

A housing comprising a metal watch case and a metal back cover ;
An antenna housed in the housing for receiving radio waves from the outside;
A dial formed of a non-conductive and brittle material disposed within the housing;
A conductive annular member disposed on the outer periphery of the dial;
And said annular member, an insulating region being interposed between the to insulate between the projecting portion provided on the inner side of the housing,
Equipped with a,
The timepiece with a wireless function , wherein the annular member is disposed at a position that is covered with the projecting portion and cannot be seen by a viewer . The wireless function watch according to claim 1, further comprising at least one slit formed in the annular member and dividing the annular member in a circumferential direction. 3. The wireless function watch according to claim 2 , wherein the slit is disposed in the vicinity of the upper part of the antenna so as to face at least one opening end of the antenna. The timepiece with a wireless function according to claim 2, further comprising an insulating member disposed in a slit of the annular member. 5. The wireless function watch according to claim 1, wherein the projecting portion is a projecting portion provided inside the watch case. The timepiece with a wireless function according to claim 5 , further comprising an insulating region interposed therebetween so as to insulate between the protruding portion and the annular member. The watch case includes a turn-back receiving portion;
The projecting portion is placed above the counter-view receiving portion, and at least a part of the counter-rotating ring is conductive.
The timepiece with a wireless function according to any one of claims 1 to 4 , wherein the entire annular member is covered with the dial ring. The timepiece with a wireless function according to claim 7 , further comprising an insulating region interposed between the counter ring and the annular member so as to insulate between the ring member and the annular member. The protruding portion is made of a conductive material ,
5. The wireless function watch according to claim 2 , wherein a slit is provided in the projecting portion corresponding to a position of the slit formed in the annular member. The protruding portion is a protruding portion formed of a conductive material;
10. The wireless function watch according to claim 9 , wherein a slit is provided in the protrusion corresponding to a position of the slit formed in the annular member. The protruding portion is a turn ring formed of a conductive material,
10. The wireless function watch according to claim 9 , wherein a slit is provided in the dial ring corresponding to a position of the slit formed in the annular member. The timepiece with a wireless function according to any one of claims 1 to 11 , wherein the insulating region is disposed in the vicinity of an upper portion of the antenna so as to face at least one open end of the antenna.

Images