JP2008032566A - Timepiece with radio function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a timepiece with radio function having excellent reception sensitivity, and capable of receiving surely a prescribed radio wave by an antenna. <P>SOLUTION: The timepiece with the radio function includes a housing, the antenna stored in the housing to receive the radio wave from an outside, a conductive annular member of a measuring ring arranged on the housing, and provided with a decoration ring for decorating the housing, or an index indicating function display of the timepiece, and at least one slit formed in the annular member and for dividing the annular member circumferential-directionally. <P>COPYRIGHT: (C)2008,JPO&INPIT

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 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, considering the function of receiving radio waves, that is, the reception sensitivity, it is conceivable that the watch case, which is a housing for housing the antenna that receives radio waves, is made of a nonconductive material such as synthetic resin.

However, since these wireless function watches are watches, unlike other communication devices, they require aesthetics and luxury as ornaments or accessories.
For this reason, it is sometimes required to use a conductive material, that is, a metal material, instead of a non-conductive material such as a synthetic resin, as a housing that houses an antenna that receives radio waves. is there.

  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, that is, a metal housing, the magnetic flux generated near the antenna is absorbed by the metal housing, which is a conductive material, and the resonance phenomenon is hindered. However, the reception function for receiving 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.

  As shown in FIG. 19, the radio-controlled timepiece 100 includes a housing 102 including a timepiece case 104 constituting a metal frame, a metal back cover 106, and a windshield (glass) 108. ing.

  In the housing 102, a movement 110, a solar cell 112, and a dial plate 114 constituting a timepiece driving unit are arranged. Furthermore, an antenna 116 for receiving standard radio waves is attached below the side of the movement 110.

The watch case 104 includes two sets of band attaching portions 120 provided with leg portions 118, and a watch band (not shown) is connected between a pair of leg portions 118 that are spaced apart from each other and extend in parallel. It has become.

  By the way, in the radio timepiece 100 employing such a metal exterior, when the antenna 116 receives radio waves, the eddy current along the circumferential direction of the annular wall is induced as an induced current in the metal timepiece case 104. Flowing. This eddy current cancels out radio waves from the outside of the housing 102 and reduces the reception sensitivity of the antenna 116.

In order to avoid such a phenomenon, in the radio timepiece 100 of Patent Document 1, a slit 122 that divides the timepiece case 104 in the circumferential direction is formed in the annular wall of the timepiece case 104. That is, as shown in FIG. 19, the watch case 104 is completely divided in the vertical direction by the slit 122. As a result, the watch case 104 has a substantially C-shaped frame shape by the slit 122. ing. In FIG. 19, the slit 122 is omitted for clarity, but an insulating member made of non-conductive synthetic resin is embedded in the slit 122.
JP 2002-341057 A

  However, even when a slit is provided in a metal watch case as described above, the antenna reception sensitivity may not be improved to a sufficient degree. For example, there are radio wave watches in which a metal ring member is arranged on a housing, such as a decorative ring or a measurement ring having an index indicating the function display of the watch. There was a need for improved reception sensitivity.

  An object of the present invention is to provide a wireless function watch having good reception sensitivity and capable of reliably receiving a predetermined radio wave by an antenna.

The wireless function watch of the present invention is
A housing;
An antenna housed in a housing for receiving radio waves from the outside;
A conductive annular member disposed on 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.

  According to the present invention, since the slit that divides the annular member in the circumferential direction is formed in the conductive annular member, the path of the eddy current that is the induced current along the annular member is divided, and the eddy current is generated. Is blocked.

Therefore, a decrease in the reception sensitivity of the antenna due to the eddy current flowing through the annular member is prevented, and the reception sensitivity of the antenna is improved.
Further, since the annular member is a member separated from the housing and disposed on the housing, even if a slit is provided in the annular member, the waterproofness and durability of the housing are not deteriorated at all.

In one aspect of the present invention, the annular member is a decorative ring for decorating the housing.
In another aspect of the present invention, the annular member is a measuring ring provided with an index indicating a function display of a timepiece. Specific examples of “function display” include time display, date display, day of the week display, month display, year display, battery level display, external environment measurement values such as pressure and temperature, and antenna reception sensitivity display. An indication of the success or failure of reception at the antenna can be given.

  For example, the annular member is placed in an annular groove formed on the upper surface of the housing so as to surround the outside of the windshield and surround the function display surface of the timepiece including the dial, for example, the time display surface. Examples of the method for fixing the annular member to the annular groove formed on the upper surface of the housing include press-fitting, adhesion, adhesion, brazing and the like into the annular groove.

  When the annular member is a decorative ring, the annular member includes a decorative shape such as an emblem, a mark representing a brand name, a manufacturer name, a product name, a pyroxene such as a gemstone or a precious stone, or a pseudo-pyroxene made of glass. be able to. Here, the decorative ring may be anything as long as it causes aesthetics through vision.

  When the annular member is a measuring ring, the annular member can bear the function display of the timepiece by itself. Or an annular member can also bear a function display in cooperation with a function display surface including a dial.

The wireless function watch of the present invention may include a plurality of the annular members.
The housing including the watch case in the present invention may be conductive such as metal or non-conductive such as synthetic resin. In addition, conductive parts and non-conductive parts may be mixed in the parts constituting the housing, and when the case has a back cover, when the case is a watch case with an integrated back cover, It includes various cases such as glass. A housing is understood to be a member that is at least partially conductive or at least partially non-conductive.

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

  In the present invention, the “conductive member” includes a member having a conductive material and a member having a conductive film formed thereon. 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. Good.

  Such a conductive member includes an annular member and a member constituting the housing, such as a case where a watch case or a bezel is conductive, and a case where an additional member described later is conductive.

  Specific examples of the conductive material used as the material itself or the coating in the conductive member include gold, silver, copper, brass, aluminum, magnesium, zinc, titanium, and alloys thereof. Further, stainless steel, tantalum carbide, or the like may be used.

  In the present invention, the “non-conductive member” includes those whose material itself is non-conductive, and those in which a non-conductive film is formed on the member. 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. Good.

In such a non-conductive member, when a member constituting the housing, for example, a watch case or a bezel is non-conductive, an insulating member described later disposed in the slit and an additional member described later are non-conductive. Some cases are included.

  In a preferred aspect of the present invention, the slit is disposed near the upper part of the antenna. Here, the “vicinity of the upper part of the antenna” means an area including at least one of the open ends of the antenna, preferably the vicinity of the upper part of the open ends on both sides, for example, a range as shown in FIG. is there.

  Here, the “open end of the antenna” includes a region around the open end of the antenna. For example, when the antenna has an arc shape that forms a U shape, the “antenna” Is included in the “open end of”.

Thus, by arranging the slit in the vicinity of the upper part of the antenna, there is no conductive annular member that prevents reception of radio waves above the antenna, so that the reception sensitivity of the antenna is improved.
The slit is preferably disposed in the vicinity of the open end of the antenna so as to face at least one open end of the antenna, and further open to the open ends on both sides of the antenna. It is more preferable that it is arranged in the vicinity of the upper portion of the end portion in terms of improvement in reception sensitivity.

  Here, “near the upper end of the open end of the antenna” is a position directly above and near the open end of the antenna in the vertical direction of the housing, for example, a range as shown in FIGS. 16 and 17. That is.

  As described above, the slit is disposed in the vicinity of the open end of the antenna so as to face at least one open end of the antenna. Therefore, the radio wave is received at the open end of the antenna through the slit, and the receiving sensitivity of the antenna is improved.

  As described above, in the case where the slit is disposed in the vicinity of the upper part of the antenna or facing at least one of the open ends of the antenna, the portion of the housing positioned between the antenna and the annular member is a non-conductive material. It is preferable that it is comprised from these.

Furthermore, it is preferable that the dial arranged in the housing is non-conductive.
In this way, by configuring the portion located between the antenna and the annular member from a non-conductive material, radio waves are easily received by the antenna through the slit, and the reception sensitivity of the antenna is improved.

In one aspect of the present invention, the slit is disposed corresponding to the time display position of the dial.
By doing in this way, a slit can be functioned as a parameter | index which shows a time display. Furthermore, even if the slit is visually recognized, a natural impression can be given, and the beauty of the watch is also improved.

In addition, the wireless function watch of the present invention includes an insulating portion disposed in the slit of the annular member.
In one aspect of the present invention, the insulating part is an insulating member disposed in a slit of the annular member.

Specific examples of such an insulating member include a molded body made of a synthetic resin.
Alternatively, the insulating member may be a member in which an insulating film is coated on a conductive material or an insulating sheet made of synthetic resin or rubber is attached. In this case, examples of the conductive material include gold, silver, copper, brass, aluminum, magnesium, zinc, titanium, and alloys thereof. Further, stainless steel, tantalum carbide, or the like may be used.

Examples of the insulating film include a non-conductive paint film, a non-conductive print film, and a non-conductive dry plating film. Specific examples of the insulating coating include a DLC (Diamond like carbon) coating; an insulating coating of an organic material such as an acrylic material, a urethane material, or a cellulose material; a chromium compound coating that includes a chromium compound; an oxidation that includes an aluminum oxide compound An aluminum-type film etc. are mentioned. Among these, examples of the chromium compound-based coating include a chromium oxide-based coating including a chromium oxide compound, a chromium nitride-based coating including a chromium nitride compound, and a chromium carbide-based coating including a chromium carbide compound.

  The insulating member is inserted into the annular groove in which the annular member or the annular member formed on the upper surface of the housing is arranged by a method such as mechanical fitting or engagement, adhesion, adhesion or the like so as not to inadvertently pull out. It is preferably fixed.

In another aspect of the present invention, the insulating portion is formed integrally with a member that constitutes a housing and in which an annular member is disposed.
Such an insulating portion can be formed by resin molding integrally with a member on which an annular member is disposed, such as a watch case or a bezel. Specifically, for example, such an insulating portion is formed in a form protruding at a portion where the slit of the annular member is disposed at a position along the groove where the annular member is disposed on the upper surface of the housing.

In a preferred aspect of the present invention, the color tone of the viewing surface of the insulating portion is the same color tone as the color tone of the viewing surface of the annular member.
In this case, in a preferable aspect, the color tone of the visual recognition surface of the insulating portion exhibits a metal external appearance that is the same color tone as the metal external appearance that is the color tone of the visual recognition surface of the annular member.

  In this way, by setting the color tone of the viewing surface of the insulating portion to the same color tone as the color tone of the viewing surface of the annular member, the insulating portion is less visible, the appearance of the annular member is improved, and the beauty of the watch itself is also improved. To do.

Furthermore, a high-class view is given to an annular member by making an insulating part exhibit the same metal appearance as an annular member.
In the present invention, the “viewing surface” means a region of the outer surface that is visually recognized by an observer.

  Further, in the present invention, the “same color tone” means that the color tone of two objects (here, the annular member and the insulating portion) are within a range where both can be recognized as the same color tone, and the tone of the color tone is light or dark. For example, it is not limited to the perfect match of the appearance of the color tone. For example, a deep gold color, a light gold color, a light gold color, and 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 bright gold color tone and the insulating portion has a dark gold color tone, if the annular member and the viewing surface of the insulating portion have the same color tone of gold, the insulating portion becomes difficult to be visually recognized. The beauty of the watch improves and the beauty of the watch itself also improves.

  The color tone of the viewing surface of the annular member and the insulating part may be the color tone of the material itself, or the color tone of the coating film coated thereon. Examples of such a film include a paint film, a printed film, and a dry plating film.

The annular member and the insulating portion may have the same color tone on the outer surfaces other than the viewing surface. For example, all the outer surfaces of the annular member and the insulating portion may have the same color tone.
In order to obtain a metal appearance similar to that of an annular member made of a conductive material, for example, the insulating portion may be coated with a coating film by metallic coating having the same color as that of the annular member. Examples of the metallic paint film include a paint film in which a metallic pigment is mixed.

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 can be used.

  When applying such a coating film to an insulating part, first, a base coating film is coat | covered on the outer surface of an insulating part. 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. With this clear coat, even when a metal is contained in the metallic paint film, the outermost surface of the painted insulating part is maintained non-conductive.

  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.

  As such an insulating top coat film, that is, an insulating film, for example, polyurethane resin paint, fluororesin paint in which fluorine is mixed in polymer molecules forming the resin, and polyvinyl chloride resin are dispersed in a plasticizer. Vinyl sol paint, silicone polyester resin paint made from silicone polyester resin modified with silicone intermediate oil-free polyester resin, or oil-free polyester resin, acrylic resin paint, epoxy resin paint, silicone acrylic resin paint, vinyl chloride resin paint Lacquer, phenolic resin paint, chlorinated rubber paint and the like.

In another preferable aspect of the present invention, the color tone of the viewing surface of the insulating portion is different from the color tone of the viewing surface of the annular member.
In the present invention, that two objects (here, the insulating portion and the annular member) have different color tones means a combination of color tones that are not recognized as the same color tones described above.

In this case, in a preferred aspect, the insulating portion is an index indicating a function display of the timepiece.
Here, specific examples of “function display” include time display, date display, day of the week display, month display, year display, battery level display, display of external environment measurement values such as pressure and temperature, and antenna reception sensitivity. Display, display of success or failure of reception at the antenna, and the like.

According to such a configuration, the portion of the insulating portion can be easily seen by an observer such as a watch wearer as an index indicating the function display of the watch.
If the annular member exhibits a metallic color tone, for example, the insulating portion can exhibit a conspicuous color tone such as red, orange, and yellow. The color tone of the visual recognition surface of the insulating part may be the color tone of the material itself of the insulating part or the color tone of the film coated on the insulating part. Examples of such a film include a paint film, a printed film, and a dry plating film.

In a preferred aspect of the present invention, the viewing surfaces of the annular member and the insulating portion form substantially the same plane.
By doing in this way, since an annular member and an insulating part are visually recognized integrally, the aesthetics of an annular member improves and the aesthetics of timepiece itself also improves.

In the wireless function watch of the present invention, 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 contact the annular member.

In one aspect of the present invention, the additional member is disposed in a recess formed in the insulating member.
In another aspect of the present invention, the additional member is disposed between two insulating members that are spaced apart from each other within the slit. In this case, the insulating member may be a bonding layer between the annular member and the additional member, for example, an adhesive layer or an adhesive layer. Specific examples of such a bonding layer include a double-sided pressure-sensitive adhesive tape.

By doing so, a metallic appearance is imparted by the conductive additional member held by the insulating member, the aesthetic appearance and high-class appearance of the annular member are improved, and the aesthetic appearance of the watch itself is also improved.
Further, since the conductive additional member is held by the insulating member so as not to come into contact with the conductive annular member, eddy current does not occur in the annular member, and the reception sensitivity of the antenna is improved.

In a preferred embodiment of the present invention, 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.
By doing in this way, an additional member becomes difficult to visually recognize, the aesthetics of an annular member improves, and the aesthetics of timepiece itself also improves.

In another preferable aspect 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 case, in a preferred aspect, the additional member is an index indicating a function display of the timepiece. Here, specific examples of “function display” include time display, date display, day of the week display, month display, year display, battery level display, display of external environment measurement values such as pressure and temperature, and antenna reception sensitivity. Display, display of success or failure of reception at the antenna, and the like.

According to such a configuration, the portion of the additional member can be easily viewed by an observer such as a watch wearer as an index indicating the function display of the watch.
In a preferred aspect of the present invention, the viewing surfaces of the annular member, the insulating member, and the additional member form substantially the same plane.

By doing in this way, since an annular member, an insulating member, and an additional member are visually recognized integrally, the aesthetics of an annular member improves and the aesthetics of timepiece itself also improves.
Further, the wireless function watch of the present invention is characterized in that an additional member is disposed above the insulating portion.

  In a preferred aspect, the additional member is a time display member. The time display member may be a member independent of the insulating portion, or may be a member formed integrally with the insulating portion. Further, the time display member may be conductive or non-conductive.

From the viewpoint of easily viewing the time display member, the color tone of the viewing surface of the time display member is preferably different from the color tone of the viewing surface of the insulating portion.
In another preferable aspect, the additional member is a decorative member.

Thus, by arranging decorative members such as gemstones such as gemstones and precious stones in the insulating portion, the beauty and luxury of the annular member are improved, and the beauty of the watch itself is also improved.
In another preferable aspect, the additional member is a covering member that covers at least a part of the boundary between the annular member and the insulating portion.

By disposing such a covering member, the boundary between the annular member and the insulating portion is hidden and cannot be visually recognized, so that the beauty and luxury of the annular member are improved and the beauty of the watch is also improved.
When this covering member is conductive, it is preferable that an extending portion extending from the insulating portion is formed between the covering member and the annular member.

  By doing so, the conductive covering member extending beyond the boundary between the annular member and the insulating portion can contact the conductive annular member because the extending portion formed in the insulating portion is interposed. In other words, the conductive covering member and the annular member are reliably insulated. Therefore, an eddy current is prevented from being generated in the annular member, and the receiving sensitivity of the antenna is improved.

  In the wireless function watch of the present invention, at least a part of the member that constitutes at least a part of the housing and in which the annular member is disposed is conductive, and an insulating region is provided between the member and the annular member. It is characterized by providing.

In one aspect of the present invention, the member on which the annular member is disposed is a watch case.
In another aspect of the present invention, the member on which the annular member is disposed is a bezel.
As described above, since the insulating region is interposed between the conductive member on which the annular member is disposed and the annular member, it is possible to prevent the induction current from flowing between them when the radio wave is received, and the reception sensitivity of the antenna. Is further improved.

In one aspect of the present invention, the insulating region includes a member in which the annular member is disposed and an insulating member disposed between the annular member.
Specific examples of such an insulating member include a sheet-like member made of synthetic resin or rubber, a non-conductive member made of ceramic, or the like.

  Alternatively, the insulating member may be a member in which an insulating film is coated on a conductive material or an insulating sheet made of synthetic resin or rubber is attached. Specific examples thereof include those described above as specific examples of the insulating member disposed in the slit.

  In the case where an insulating member as an insulating region is disposed between a member where the annular member is disposed and the annular member, an independent insulating sheet as a spacer may be sandwiched between them, but at least these A form in which an insulating member is attached to one side is more preferable. Specifically, the form which affixes an adhesive tape and an adhesive tape is mentioned.

  By doing so, it becomes easy to incorporate the annular member into the housing when the timepiece is assembled, and the workability is improved. Furthermore, by using a double-sided pressure-sensitive adhesive tape that functions as a bonding layer as the insulating member, it also functions as a means for fixing the annular member to the housing.

In another aspect of the present invention, the insulating region is composed of an insulating coating formed on at least one side of a boundary surface between the member where the annular member is disposed and the annular member.
Specific examples of such an insulating film include those exemplified as the insulating film coated on the conductive material and the insulating film coated on the metallic paint film in the insulating member disposed in the slit. be able to.

In a preferred aspect of the present invention, the insulating region is arranged near the upper part of the antenna.
The insulating region is preferably disposed in the vicinity of the open end of the antenna so as to face at least one open end of the antenna, and further, facing the open ends on both sides of the antenna, respectively. It is more preferable that it is arranged in the vicinity of the upper end of the open end in terms of improving the receiving sensitivity.

Here, “near the upper part of the antenna” and “open end of the antenna” are the regions described above with respect to the arrangement position of the slits of the annular member.
In this way, by arranging an insulating region in the vicinity of the upper part of the antenna or in the vicinity of the upper part of the open end portion so as to face at least one of the open end portions of the antenna, a ring is formed in this region when receiving radio waves. The induction current is prevented from flowing between the conductive member on which the member is disposed and the annular member, and the reception sensitivity of the antenna is further improved.

  ADVANTAGE OF THE INVENTION According to this invention, it has a favorable receiving sensitivity and the timepiece with a radio | wireless function which an antenna can receive a predetermined radio wave reliably is provided.

Embodiments of the present invention will be described below with reference to the drawings.
In the present specification, the “vertical direction” means the vertical direction in FIGS. 2 and 14. 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 horizontal direction in FIGS. 2 and 14, and the planar direction overlaps with the longitudinal direction of the band or the width direction of the band. In some cases.
(Example 1)
FIG. 1 is an exploded perspective view of a wireless function watch in one embodiment of the present invention, and FIG. 2 is a partial cross-sectional view in the AA line direction in a state where the wireless function watch of FIG. 1 is assembled.

  In FIG. 1 and FIG. 2, the code | symbol 10 has shown the timepiece with a wireless function of a present Example as a whole. The wireless function watch 10 of the present embodiment is a radio-controlled wristwatch 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. As shown in FIG.

  The housing 12 includes a watch case 14 that forms a conductive substantially cylindrical frame, a conductive 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 and a windshield (glass) 18 mounted in a sealed state so as to cover the upper surface opening of 14.

  A movement 20 constituting a timepiece drive unit is disposed in the housing 12, and a solar cell 22 for driving the movement 20 by electromotive force of light is disposed on the upper surface of the movement 20.

On the upper surface of the solar cell 22, a dial plate 24 having a translucent function that transmits external light having a wavelength that contributes to power generation by the solar cell is sufficient for driving 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, 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 is illustrated as the antenna 26. However, the present invention is not limited to this. The antenna of the structure of may be sufficient.

  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 by the solar cell. For example, the dial plate 24 is made of synthetic resin, ceramic, glass, wood, or shellfish. By using a non-conductive material such as the above, it becomes easier for external radio waves to reach the antenna 26, so that the receiving sensitivity of the antenna can be improved.

  As shown in FIG. 1, the watch case 14 includes two sets of band attaching portions 28 protruding outward, and these band attaching portions 28 are spaced apart from each other by a predetermined distance so as to face each other. A leg portion 30 is provided which is disposed and extends from the watch case 14.

A wristwatch band (not shown) is connected between the leg portions 30.
Although not shown, a minute hand and an hour hand are arranged on the needle shaft 31 of FIG. 1 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.

As shown in FIG. 2, a fixing (waterproof) packing 41 for fixing the windshield 18 in a sealed state is interposed between the outer peripheral portion of the windshield 18 and the upper end inner peripheral side of the watch case 14. .
An annular groove 14a is formed on the upper surface of the watch case 14, and a conductive annular member 35 surrounds the outside of the windshield 18 and surrounds the time display surface including the dial 24 in the annular groove 14a. It is installed. The annular member 35 is a decoration ring for decorating the housing 12 or a measurement ring having an index indicating a function display of the timepiece.

  As shown in FIG. 2, the back cover 16 is formed with a core member 42 that protrudes inward, and a plurality of engagement protrusions that are spaced apart are formed on the outer peripheral side of the core member 42. The installation part 43 is protrudingly provided. On the inner peripheral side near the lower end of the timepiece case 14, an engagement recess 44 is formed to engage with the engagement protrusion 43 of the core member 42 of the back cover 16.

  A support frame 45 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 42. The support frame 45 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 conductive watch case 14 and the antenna 26 are provided. A gap along the plane direction is secured, and the reception performance of the antenna 26 is kept high.

  By engaging the engaging protrusion 43 of the core member 42 in the back cover 16 with the engaging recess 44 of the watch case 14, the pressing surface formed on the inner peripheral side of the watch case 14 and the back cover 16. Between the upper end portion of the core member 42, the movement 20, the solar cell 22, and the dial 24 are fixed and accommodated inside the timepiece case 14 via the support frame 45.

In FIG. 2, reference numeral 46 denotes a waterproof packing for sealing the space between the back cover 16 and the watch case 14 in a sealed state.
In the wireless function watch 10 of this embodiment, the annular member 35 is formed with a slit 35a that divides the annular member 35 in the circumferential direction.

  Thus, since the slit 35a is formed in the conductive annular member 35, the path of the eddy current that is the induced current along the annular member 35 is cut off, and the generation of the eddy current is prevented. Therefore, a decrease in the reception sensitivity of the antenna 26 due to the eddy current flowing through the annular member 35 is prevented, and the reception sensitivity of the antenna 26 is improved.

In the wireless function watch 10 of this embodiment, an insulating region 50 is disposed between the annular groove 14 a of the watch case 14 and the annular member 35.
As described above, the insulating region 50 can be formed of an insulating member or an insulating film. In this embodiment, the insulating region 50 is formed of a double-sided adhesive tape, and the annular member 35 is formed into an annular groove with the double-sided adhesive tape. 14a is fixed.

  In this way, by interposing the insulating region 50 between the annular groove 14a of the watch case 14 and the annular member 35, it is possible to prevent an induced current from flowing between them when receiving a radio wave, and the receiving sensitivity of the antenna. Is further improved.

  As shown in FIG. 2, when the insulating region 50 is formed only between the lower surface of the annular member 35 and the bottom surface of the annular groove 14a, the conduction between the side surface of the annular member 35 and the side surface of the annular groove 14a. A gap 55 is formed to block However, if necessary, the insulating region 50 may be formed between the side surface of the annular member 35 and the side surface of the annular groove 14a.

In this embodiment, the conductive watch case 14 is used. However, if the watch case 14 is non-conductive such as a synthetic resin, the insulating region 50 need not be disposed.
(Example 2)
3 is a partially exploded perspective view of a wireless function watch according to another embodiment of the present invention, and FIG. 4 is a perspective view of the wireless function watch of FIG. Note that the wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 of Embodiment 1 described above, and the same reference numerals are given to the same components. Detailed description thereof is omitted.

  The wireless function watch 10 of this embodiment includes an insulating member 60 disposed in the slit 35 a of the annular member 35. The cross section of the insulating member 60 has substantially the same shape as the cross section of the annular member 35, and the insulating member 60 is mounted in a recess partitioned by the slit 35a and the annular groove 14a.

  Thus, even when the insulating member 60 is disposed in the slit 35 a, the slit 35 a is formed in the conductive annular member 35, so that an eddy current path that is an induced current along the annular member 35 is formed. The eddy current is prevented from being generated. Therefore, a decrease in the reception sensitivity of the antenna 26 due to the eddy current flowing through the annular member 35 is prevented, and the reception sensitivity of the antenna 26 is improved.

For example, if the insulating member 60 is a non-conductive synthetic resin, the insulating member 60 matched to the size and shape of the slit 35a can be easily manufactured by integral molding or the like.
Moreover, it is preferable that the insulating member 60 is fixed to the annular member 35 so that the insulating member 60 is not inadvertently dropped from the slit 35a of the annular member 35. As a fixing method therefor, for example, mechanical fixing means such as fitting, press-fitting, joining, and insert molding can be applied.

  In this embodiment, since the cross section of the insulating member 60 has substantially the same shape as the cross section of the annular member 35, the viewing surface of the insulating member 60 forms substantially the same plane as the viewing surface of the annular member 35. Therefore, since the visual recognition surface of the insulating member 60 is visually recognized integrally with the annular member 35, the appearance of the annular member 35 is improved and the appearance of the timepiece itself is also improved.

  In a preferred embodiment, the color tone of the viewing surface of the insulating member 60 is the same color tone as the color tone of the viewing surface of the annular member 35. By doing in this way, the insulating member 60 becomes difficult to be visually recognized. As a result, the beauty of the annular member 35 is improved and the beauty of the timepiece itself is also improved.

  Furthermore, the annular member 35 is given a high-class view by making the color tone of the viewing surface of the insulating member 60 exhibit a metal appearance that is the same color tone as the color tone of the viewing surface of the annular member 35.

  In another preferable aspect, the color tone of the viewing surface of the insulating member 60 is different from the color tone of the viewing surface of the annular member 35. In this way, the viewing surface of the insulating member 60 can be easily viewed by an observer such as a watch wearer. Therefore, the viewing surface of the insulating member 60 can be made to function as an index surface indicating the function display of the watch.

  For example, the slit 35a and the insulating member 60 are arranged so as to coincide with the time display position from 1 o'clock to 12 o'clock. In FIG. 4, the insulating member 60a is arranged so as to coincide with the time display position at 6 o'clock.

  When the insulating member 60 is not disposed in the slit 35a, the slit 35a is preferably disposed corresponding to the time display position of the dial as described above. By doing so, the slit 35a can function as an index indicating the time display, and further, even if the slit 35a is visually recognized, a natural impression can be given, so that the aesthetics of the watch is also improved.

Further, a mark or an emblem representing a brand name, a manufacturer name, a product name, or the like may be displayed on the viewing surface of the insulating member 60.
(Example 3)
FIG. 5 is a partially exploded perspective view of a wireless function watch according to another embodiment of the present invention. Note that the wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 of the first and second embodiments described above, and the same reference numerals denote the same components. The detailed description is omitted.

  The wireless function watch 10 of this embodiment includes an insulating portion 60 disposed in the slit 35 a of the annular member 35. The insulating portion 60 is formed integrally with the watch case 14 made of synthetic resin, and the cross section thereof is substantially the same shape as the cross section of the annular member 35. That is, the annular groove 14a on the upper surface of the watch case 14 has a substantially C-shaped arc shape, and the insulating portion 60 protrudes upward between the open ends of the arc formed by the groove. Yes. The annular member 35 is mounted in the annular groove 14a of the watch case 14 in such a manner that the insulating portion 60 is inserted into the slit 35a.

Even when the insulating portion 60 is disposed in the slit 35 a in this way, the slit 35 a is formed in the conductive annular member 35, so that the path of the eddy current that is an induced current along the annular member 35 is The eddy current is prevented from being generated. Therefore, a decrease in the reception sensitivity of the antenna 26 due to the eddy current flowing through the annular member 35 is prevented, and the reception sensitivity of the antenna 26 is improved.
Example 4
6 is a partially exploded perspective view of a wireless function watch according to another embodiment of the present invention, and FIG. 7 is a perspective view of the wireless function watch of FIG. Note that the wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 of the first and second embodiments described above, and the same components have the same reference numerals. The detailed description is omitted.

  In the wireless function watch 10 of this embodiment, the insulating member 60 holds a conductive metal member 65 as an additional member, and the metal member 65 can be visually recognized from the outside, and an annular member. It is held by the insulating member 60 so as not to come into contact with 35.

  Specifically, the metal member 65 is disposed and fixed in a recess 60 a formed in the insulating member 60. The metal member 65 is preferably fixed to the insulating member 60 so that it does not inadvertently fall out of the recess 60a of the insulating member 60. As the fixing method, for example, mechanical fixing means such as fitting, press-fitting, joining, and insert molding can be applied. For the bonding layer for bonding the insulating member 60 and the metal member 65, for example, an adhesive, a pressure-sensitive adhesive, a double-sided pressure-sensitive adhesive tape, or the like is used.

With this configuration, the metal appearance is imparted by the metal member 65 held by the insulating member 60, so that the beauty and luxury of the annular member 35 are improved, and the beauty of the watch itself is also improved.
Further, since the metal member 65 is held by the insulating member 60 so as not to come into contact with the annular member 35, no eddy current is generated in the annular member 35, and the reception sensitivity of the antenna 26 is improved.

  In this embodiment, since the cross section of the metal member 65 and the insulating member 60 is substantially the same shape as the cross section of the annular member 35, the viewing surface of the metal member 65 and the insulating member 60 is substantially the same as the viewing surface of the annular member 35. Form the same plane. For this reason, since the viewing surfaces of the metal member 65 and the insulating member 60 are visually recognized integrally with the annular member 35, the appearance of the annular member 35 is improved, and the appearance of the timepiece itself is also improved.

  In a preferred embodiment, the color tone of the viewing surface of the metal member 65 is the same color tone as the color tone of the viewing surface of the annular member 35. By doing in this way, the metal member 65 becomes difficult to visually recognize, and as a result, the beauty | look and high-class view of the annular member 35 improve, and the beauty | look of the timepiece itself also improves.

  In another preferable aspect, the color tone of the viewing surface of the metal member 65 is different from the color tone of the viewing surface of the annular member 35. By doing in this way, it can make it easy to visually recognize the visual recognition surface of this metal member 65 by observers, such as a watch carrier. Therefore, the viewing surface of the metal member 65 can be made to function as an index surface indicating the function display of the watch.

Further, a mark or emblem representing a brand name, a manufacturer name, a product name, or the like may be displayed on the viewing surface of the metal member 65.
(Example 5)
FIG. 8 is a partially exploded perspective view of a wireless function watch according to another embodiment of the present invention. Note that the wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 of the first and second embodiments described above, and the same components have the same reference numerals. The detailed description is omitted.

In the wireless function watch 10 of this embodiment, the metal member 65 is disposed between the two insulating members 60, 60 disposed in the slit 35 a of the annular member 35 and spaced apart from each other by a predetermined distance.
The two insulating members 60, 60 can be composed of, for example, a non-conductive bonding layer for bonding the annular member 35 and the metal member 65, for example, an adhesive layer or an adhesive layer. A specific example of such a bonding layer is a double-sided pressure-sensitive adhesive tape.

  By configuring in this way, the metal appearance is imparted by the metal member 65 held by the insulating members 60, 60, so that the beauty and luxury of the annular member 35 are improved, and the beauty of the watch itself is also improved.

Further, since the metal member 65 is held by the insulating member 60 so as not to come into contact with the annular member 35, no eddy current is generated in the annular member 35, and the reception sensitivity of the antenna 26 is improved.
In this embodiment, since the cross sections of the metal member 65 and the insulating member 60 have substantially the same shape as the cross section of the annular member 35, the viewing surface of the metal member 65 forms substantially the same plane as the viewing surface of the annular member 35. To do. Therefore, since the visual recognition surface of the metal member 65 is visually recognized integrally with the annular member 35, the appearance of the annular member 35 is improved and the appearance of the timepiece itself is also improved.

  In a preferred embodiment, the color tone of the viewing surface of the metal member 65 is the same color tone as the color tone of the viewing surface of the annular member 35. By doing in this way, the metal member 65 becomes difficult to visually recognize, and as a result, the beauty | look and high-class view of the annular member 35 improve, and the beauty | look of the timepiece itself also improves.

  In another preferable aspect, the color tone of the viewing surface of the metal member 65 is different from the color tone of the viewing surface of the annular member 35. By doing in this way, it can make it easy to visually recognize the visual recognition surface of this metal member 65 by observers, such as a watch carrier. Therefore, the viewing surface of the metal member 65 can be made to function as an index surface indicating the function display of the watch.

Further, a mark or emblem representing a brand name, a manufacturer name, a product name, or the like may be displayed on the viewing surface of the metal member 65.
Further, when the watch case 14 is conductive, it is preferable to dispose the insulating region 70 between the annular member 35 and the annular groove 14a of the watch case 14 as in FIG. By doing so, it is possible to prevent an induced current from flowing between the annular member 35 and the watch case 14 during reception of radio waves, and the reception sensitivity of the antenna 26 is further improved.
(Example 6)
9 is a partially exploded perspective view of a wireless function watch in another embodiment of the present invention, and FIG. 10 is a perspective view of the wireless function watch of FIG. Note that the wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 of the first and second embodiments described above, and the same components have the same reference numerals. The detailed description is omitted.

In the wireless function timepiece 10 of this embodiment, a Roman numeral time display member 66 indicating 6 o'clock is disposed as an additional member on the insulating member 60.
The time display member 66 may be a conductive or non-conductive member independent of the insulating member 60, or may be a member formed integrally with the insulating portion 60. For example, if the time display member 66 is made of a non-conductive material that can be injection-molded such as a synthetic resin, the time display member 66 may be formed integrally with the insulating member 60.

From the viewpoint of easy viewing of the time display member 66, the color tone of the viewing surface of the time display member 66 is preferably a color tone different from the color tone of the viewing surface of the insulating member 60.
(Example 7)
11-A is a partially exploded perspective view of a wireless function watch in another embodiment of the present invention, FIG. 11-B is an enlarged perspective view of an insulating member and a cover member in the wireless function watch of FIG. 11-A, 12 is a perspective view of the wireless function watch of FIG. 11-A. Note that the wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 of the first and second embodiments described above, and the same components have the same reference numerals. The detailed description is omitted.

  As shown in FIGS. 11A and 12, the wireless function watch 10 of this embodiment has an additional member that covers at least a part of the boundary between the annular member 35 and the insulating member 60 on the insulating member 60. A covering member 67 is provided.

By providing such a covering member 67, the boundary between the annular member 35 and the insulating member 60 is hidden by the covering member 67 and is not visually recognized, so that the beauty and luxury of the annular member 35 are further improved.

  In this embodiment, as shown in the enlarged perspective view of FIG. 11-B, a fitting protrusion 67a is formed on the back surface of the covering member 67, and a fitting hole 60b is formed in the insulating member 60 correspondingly. The covering member 67 is attached to the insulating member 60 by fitting the fitting convex portion 67a into the fitting hole 60b.

Further, the insulating member 60 is formed with an extending portion 60c that extends between the covering member 67 and the annular member 35 after being attached.
By providing the extending portion 60c, as shown in FIG. 12, the conductive cover member 67 extending beyond the boundary between the annular member 35 and the insulating member 60 and the conductive annular member 35 are provided. Since the extending part 60c is interposed between them, they are prevented from contacting each other.

Therefore, since the conductive covering member 67 and the conductive annular member 35 are reliably insulated, an eddy current is prevented from being generated in the annular member 35, and the reception sensitivity of the antenna is improved. In this embodiment, the extension length of the extension portion 60c is shorter than the length of the covering member 67 extending on the annular member 35. However, according to the necessity of securing insulation, The extension length may be appropriate, for example, the width in the longitudinal direction may be the same as that of the covering member 67.
(Example 8)
FIG. 13 is a perspective view of a wireless function watch according to another embodiment of the present invention. Note that the wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 of the first and second embodiments described above, and the same components have the same reference numerals. The detailed description is omitted.

  In the wireless function watch 10 of this embodiment, a decorative member 68 as an additional member that causes a viewer to feel aesthetics is disposed on the insulating member 60. In this embodiment, three slits 35a are formed in the annular member 35, and in each of these slits 35a, an insulating member 60 having a decorative member 68 made of pyroxene such as gemstone or precious stone is disposed is arranged. ing.

Thus, by providing the decorative member 68 on the upper portion of the insulating member 60, the beauty and luxury of the annular member 35 are improved, and the beauty of the timepiece itself is also improved.
In addition, when the color tone of the viewing surface of the insulating member 60 is set as an index indicating the function display of the watch as the color tone and the different color tone of the viewing surface of the annular member 35, such a function display of the watch is visually recognized by an observer. Can be made easier.
Example 9
FIG. 14 is a cross-sectional view similar to FIG. 2 of a wireless function watch according to another embodiment of the present invention. The wireless function watch 10 of this embodiment has basically the same configuration as the wireless function watch 10 shown in Embodiment 1, and the same reference numerals are given to the same components. Detailed description thereof is omitted.

  The wireless function watch 10 of this embodiment includes a non-conductive annular bezel 70 made of synthetic resin on the upper side of a watch case 14 constituting a conductive substantially cylindrical frame. The case 14, the conductive back cover 16 mounted in a sealed state so as to cover the lower surface opening of the watch case 14, the bezel 70 disposed on the upper part of the watch case 14, and the upper opening of the bezel 70 The housing 12 is composed of a windshield (glass) 18 mounted in a sealed state so as to cover it.

An annular groove 70 a is formed on the upper surface of the bezel 70, and a conductive annular member 35 is attached to the annular groove 70 a so as to surround the outside of the windshield 18 and the time display surface including the dial 24. Has been. The annular member 35 is a decoration ring for decorating the housing 12 or a measurement ring having an index indicating a function display of the timepiece.

  By engaging the engaging projection 43 of the core member 42 on the back cover 16 with the engaging recess 44 of the watch case 14, the pressing surface formed on the lower surface of the bezel 70 and the core of the back cover 16 Between the upper end of the member 42, the movement 20, the solar cell 22, and the dial 24 are fixed and accommodated inside the watch case 14 via the support frame 45.

  Also in this embodiment, although not shown, the conductive annular member 35 is formed with a slit 35a, and the slit 35a divides the path of the eddy current that is an induced current along the annular member 35. Is prevented from occurring. Therefore, a decrease in the reception sensitivity of the antenna 26 due to the eddy current flowing through the annular member 35 is prevented, and the reception sensitivity of the antenna 26 is improved.

Hereinafter, a preferable arrangement position of the slit 35a of the annular member 35 in the present invention will be described with reference to FIGS.
The slit 35a of the annular member 35 secures a passage of the received radio wave by the slit 35a and increases the reception sensitivity of the antenna 26 by increasing the distance between the conductive annular member 35 and the antenna 26. It is desirable to arrange in the vicinity of the upper portion of the antenna 26, particularly in the vicinity of the upper portion of the open end of the antenna 26.

  An example of the vicinity of the upper portion of the antenna 26 as seen from the plane direction is shown in FIG. In the figure, a region 71 indicated by oblique lines is the vicinity of the upper side of the antenna 26. In the figure, a slit 35a and an insulating member 60 are disposed in a region 71 indicated by hatching. For convenience of explanation, members such as the movement 20 and the bezel 70 disposed in the watch case 14 are not shown, and the insulating member 60 may be omitted. The same applies to FIGS. 16 to 18.

  FIG. 16 shows an example of the vicinity of the upper ends of the open ends 26a and 26b on both sides of the antenna 26 as viewed from the plane direction. In the drawing, two regions 72 indicated by hatching are in the vicinity above the open ends 26a and 26b.

FIG. 17 shows an example of the vicinity in the vicinity of the open end 26a on one side of the antenna 26 as viewed from the plane direction. In the figure, a region 72 indicated by hatching is in the vicinity above the open end portion 26a.
FIG. 18 shows an example of the vicinity of the upper side of the antenna 26 when viewed from the plane direction when a plurality of annular members 35 are arranged. In the figure, two annular members 35 are arranged on concentric circles, and for each of them, a region 71 indicated by oblique lines is near the upper portion of the antenna 26.

  Thus, by arranging the slit 35a in the vicinity of the upper part of the antenna 26 or the upper part of the open ends 26a and 26b, the conductive annular member 35 that prevents reception of radio waves does not exist in the vicinity of the upper part. The radio wave is received by the antenna 26 through the slit 35a, and the reception sensitivity of the antenna is improved.

  In the case where the slit 35a is arranged at such a position, the portion located between the antenna 26 and the annular member 35 is preferably made of a non-conductive material. The embodiment of FIG. 14 shows a specific example in such a case, and a bezel 70 positioned between the antenna 26 and the annular member 35 is formed of a non-conductive synthetic resin, and characters. The plate 24 is formed of a non-conductive material having a light transmitting function that transmits external light having a wavelength that contributes to power generation of the solar cell 22, such as synthetic resin, ceramic, glass, wood, or shellfish.

  Thus, by configuring the portion located between the antenna 26 and the annular member 35 from a non-conductive material, radio waves are easily received by the antenna through the slit 35a of the annular member 35, and the antenna 26 Reception sensitivity is further improved.

Hereinafter, a preferred arrangement position of the insulating region 70 of FIG. 1 in the present invention will be described.
The insulating region 70 may be continuously formed over the entire circumferential direction of the annular member 35 in the planar direction, but may be formed in a part in the circumferential direction. In this case, in terms of effectively preventing an induced current near the open end of the antenna 26, it is desirable to dispose at least in the vicinity of the upper portion of the antenna 26, particularly in the vicinity of the upper end of the open end of the antenna 26.

An example of the vicinity of the upper portion of the antenna 26 as seen from the plane direction is as shown in FIG.
An example of the vicinity of the upper ends of the open ends 26a and 26b on both sides of the antenna 26 as seen from the plane direction is as shown in FIG. It is particularly preferable that the insulating region 70 is disposed at least at each of these positions.

  An example of the vicinity of the upper end of the open end 26a on one side of the antenna 26 as seen from the plane direction is as shown in FIG. The insulating region 70 is preferably disposed at least at this position (may be near the upper end of the open end portion 26b).

Further, an example of the vicinity of the upper portion of the antenna 26 when viewed from the plane direction when a plurality of annular members 35 are arranged is as shown in FIG.
As mentioned above, although the Example of this invention was described, this invention is not limited to the Example mentioned above at all, In the range which does not deviate from the summary, various deformation | transformation and change are possible.

  The structure of the wireless function watch in the present invention exhibits the above-described remarkable effect when applied to a wristwatch. However, the structure of the wireless function watch in the present invention can be applied to a table clock and a wall clock in addition to the wristwatch.

  In the embodiment described above, the 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 has been described. The structure can also be applied to a watch having a wireless function such as a personal computer communication function, a mobile phone function, and a non-contact IC card function.

  The dial may be replaced with a liquid crystal display unit. If a liquid crystal display unit is used, the display hands may be eliminated.

1 is an exploded perspective view of a wireless function watch in one embodiment of the present invention. FIG. It is a fragmentary sectional view of the AA line direction in the state which assembled the timepiece with a radio | wireless function of FIG. FIG. 6 is a partially exploded perspective view of a wireless function watch in another embodiment of the present invention. FIG. 4 is a perspective view of the wireless function watch of FIG. 3. FIG. 6 is a partially exploded perspective view of a wireless function watch in another embodiment of the present invention. FIG. 6 is a partially exploded perspective view of a wireless function watch in another embodiment of the present invention. FIG. 7 is a perspective view of the wireless function watch of FIG. 6. FIG. 6 is a partially exploded perspective view of a wireless function watch in another embodiment of the present invention. FIG. 6 is a partially exploded perspective view of a wireless function watch in another embodiment of the present invention. FIG. 10 is a perspective view of the wireless function watch of FIG. 9. FIG. 6 is a partially exploded perspective view of a wireless function watch in another embodiment of the present invention. FIG. 11B is an enlarged perspective view of an insulating member and a cover member in the wireless function watch of FIG. 11-A. FIG. 11B is a perspective view of the wireless function watch of FIG. 11-A. It is a perspective view of the timepiece with a radio | wireless function in another Example of this invention. It is sectional drawing similar to FIG. 2 of the timepiece with a radio | wireless function in another Example of this invention. It is a figure explaining the range of the upper vicinity of an antenna. It is a figure explaining the range of the upper vicinity of the open end part of an antenna. It is a figure explaining the range of the upper vicinity of the open end part of an antenna. It is a figure explaining the range of the upper vicinity of an antenna. It is a disassembled perspective view of the conventional timepiece with a wireless function.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Timepiece with radio | wireless function 12 Housing 14 Timepiece case 14a Annular groove 16 Back cover 18 Windshield 20 Movement 20a Small diameter part 20b Large diameter part 22 Solar cell 24 Dial 26 Antenna 26a, 26b Open end part 28 Band attaching part 30 Leg part 31 Needle Shaft 35 Annular member 35a Slit 41 Fixed packing 42 Core member 43 Engaging protrusion 44 Engaging recess 45 Support frame 46 Waterproof packing 47 External operation member (Crown)
50 Insulating region 55 Clearance 60 Insulating member (insulating part)
60a Recessed portion 60b Fitting hole 60c Extension portion 65 Metal member 66 Time display member 67 Cover member 67a Fitting convex portion 68 Decoration member 70 Bezel 70a Annular groove 71 Upper vicinity of antenna 72 Upper vicinity of open end of antenna

Claims (38)

A wireless function watch,
A housing;
An antenna housed in a housing for receiving radio waves from the outside;
A conductive annular member disposed on the housing;
At least one slit formed in the annular member and dividing the annular member in the circumferential direction;
A wireless function watch characterized by comprising:   The timepiece with a wireless function according to claim 1, wherein the annular member is a decoration ring for decorating the housing.   The timepiece with a wireless function according to claim 1, wherein the annular member is a measurement ring having an index indicating a function display of the timepiece.   The wireless function watch according to any one of claims 1 to 3, wherein the slit is disposed in the vicinity of the upper part of the antenna.   The timepiece with a wireless function according to any one of claims 1 to 3, wherein the slit is disposed in the vicinity of the upper end of each open end portion so as to face the open end portions on both sides of the antenna.   The timepiece with a wireless function according to any one of claims 1 to 3, wherein the slit is arranged in the vicinity of an upper end of the open end portion so as to face at least one open end portion of the antenna.   The timepiece with a wireless function according to any one of claims 4 to 6, wherein a portion of the housing located between the antenna and the annular member is made of a non-conductive material.   The timepiece with a wireless function according to any one of claims 4 to 7, wherein a dial arranged in the housing is non-conductive.   The timepiece with a wireless function according to any one of claims 1 to 3, wherein the slit is arranged corresponding to a time display position of a dial.   The timepiece with a wireless function according to any one of claims 1 to 9, further comprising an insulating portion arranged in a slit of the annular member.   The timepiece with a wireless function according to claim 10, wherein the insulating portion is an insulating member disposed in a slit of the annular member.   The timepiece with a wireless function according to claim 10, wherein the insulating portion is formed integrally with a member that constitutes a housing and in which an annular member is disposed.   The wireless function watch according to claim 10, wherein the color tone of the visual recognition surface of the insulating portion is the same color tone as the color tone of the visual recognition surface of the annular member.   14. The wireless function watch according to claim 13, wherein the color tone of the visual recognition surface of the insulating portion exhibits a metal external appearance that is the same color tone as the color appearance of the color recognition surface of the annular member.   The wireless function watch according to claim 10, wherein a color tone of the visual recognition surface of the insulating portion is a color tone and a different color tone of the visual recognition surface of the annular member.   16. The wireless function watch according to claim 15, wherein the insulating portion is an index indicating a function display of the watch.   The timepiece with a wireless function according to any one of claims 10 to 16, wherein the viewing surface of the annular member and the insulating portion forms substantially the same plane. The insulating member holds a conductive additional member,
12. The wireless function watch according to claim 11, wherein the additional member is held by an insulating member so that the additional member can be visually recognized from the outside and does not contact the annular member.   The wireless function watch according to claim 18, wherein the additional member is disposed in a recess formed in the insulating member.   19. The wireless function watch according to claim 18, wherein the additional member is disposed between two insulating members disposed at a predetermined interval in the slit.   21. The wireless function watch according to claim 18, wherein 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.   21. The wireless function watch according to claim 18, wherein 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.   23. The wireless function watch according to claim 22, wherein the additional member is an index indicating a function display of the watch.   The wireless function watch according to any one of claims 18 to 23, wherein viewing surfaces of the annular member, the insulating member, and the additional member form substantially the same plane.   The timepiece with a wireless function according to claim 10, wherein an additional member is disposed above the insulating portion.   26. The wireless function watch according to claim 25, wherein the additional member is a time display member.   26. The wireless function watch according to claim 25, wherein the additional member is a decorative member.   26. The wireless function watch according to claim 25, wherein the additional member is a cover member that covers at least a part of a boundary between the annular member and the insulating portion.   29. The wireless function watch according to claim 28, wherein an extending portion extending from the insulating portion is formed between the covering member and the annular member.   30. At least a part of a member that constitutes at least a part of the housing and in which the annular member is disposed is conductive, and an insulating region is provided between the member and the annular member. The wireless function watch according to any one of the above.   31. The wireless function watch according to claim 30, wherein the member on which the annular member is disposed is a watch case.   31. The wireless function watch according to claim 30, wherein the member on which the annular member is disposed is a bezel.   The wireless function according to any one of claims 30 to 32, wherein the insulating region includes a member in which the annular member is disposed and an insulating member disposed between the annular member. clock.   34. The wireless function watch according to claim 33, wherein the insulating member is attached to at least one of a member on which the annular member is disposed and an annular member.   The said insulation area | region is comprised from the insulating coating formed in the at least one side of the interface between the member by which the said annular member is arrange | positioned, and an annular member. A watch with a wireless function.   36. The wireless function watch according to any one of claims 30 to 35, wherein the insulating region is disposed in the vicinity of an upper portion of an antenna.   36. The wireless function watch according to any one of claims 30 to 35, wherein the insulating region is disposed in the vicinity of an upper end of each open end portion so as to face open end portions on both sides of the antenna. .   36. The wireless function watch according to any one of claims 30 to 35, wherein the insulating region is arranged in the vicinity of an upper end of the antenna so as to face at least one of the open ends of the antenna. .

Images