JP2015169609A - Timepiece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a timepiece which can decrease size in a plane surface direction of the timepiece, even if using a ring-shaped antenna.SOLUTION: A first fixing projecting portion 125a and a second fixing projecting portion 125b are provided on a bottom plate 125. Fixing projecting portions 135a and 135b of a solar panel 135, the first fixing projecting portion 125a, and the second fixing projecting portion 125b are engaged, and the second fixing projecting portion 125b and fixing projecting portions 11a and 11b of a dial 11 are engaged, thereby mounting the solar panel 135 and the dial 11 to the bottom plate 125. On an inner periphery of an antenna body 110, notch portions 111 are provided at positions corresponding to the first fixing projecting portion 125a and the second fixing projecting portion 125b. An engagement portion of the fixing projecting portions 135a and 135b, the first fixing projecting portion 125a, and the second fixing projecting portion 125b, and an engagement portion of the second fixing projecting portion 125b and the fixing projecting portions 11a and 11b are stored in the notch portions 111.

Description

  The present invention relates to a timepiece having a ring-shaped antenna body.

  In a GPS timepiece that acquires radio wave information from a GPS satellite and displays an accurate time, a timepiece using a ring-shaped antenna for receiving radio waves has been proposed (for example, Patent Document 1). A ring-shaped antenna has a larger antenna reception area than a rod-shaped antenna or an arc-shaped antenna, and can receive radio waves better.

JP 2011-21929 A

  However, it is necessary to install the ring-shaped antenna above the watch, but there are parts such as a dial, dial ring, solar panel, etc. above the watch, and these parts are the same as the ring-shaped antenna. In some cases, the size of the watch in the planar direction increases.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a timepiece that can reduce the size of the timepiece in the plane direction even when a ring-shaped antenna is used.

In order to solve the above-described problems, a timepiece according to the present invention includes a first structure, a second structure, a first fixing portion that fixes the first structure, and the second structure. A second fixing part for fixing
A ring-shaped antenna, and an inner periphery of the ring-shaped antenna includes a notch portion in which the first fixing portion and the second fixing portion are accommodated.

  According to the present invention, the ring-shaped antenna is disposed on the outer periphery of the first structure and the second structure, and the first fixing portion of the first structure and the second structure of the second structure are arranged. The two fixing parts are housed in a notch provided on the inner periphery of the ring-shaped antenna. Therefore, the inner peripheral position of the ring-shaped antenna can be set to a position close to the first structure body and the second structure body, and the size of the timepiece in the plane direction can be reduced. In the present invention, the “ring shape” includes not only a circle in plan view but also a square and other polygonal shapes. For example, a shape along the outer shape of the watch is preferable because the space inside the antenna can be used effectively.

  In the timepiece described above, the first structure and the second structure are stacked in a vertical direction in a cross-sectional view in a direction perpendicular to the radial direction of the antenna, and the first fixing portion and the second structure are stacked. The two fixing portions may be at least partially shared. In this case, since the common first fixing portion and second fixing portion are accommodated in the notch portion, the fixing portion of another structure can be accommodated in the notch portion.

  In the timepiece described above, a third structure may be provided, and a third fixing portion that fixes the third structure may be housed in the notch. In this case, since the third fixing portion is housed by the notch portion together with the first fixing portion and the second fixing portion, the size of the antenna in the radial direction can be further reduced.

  In the timepiece described above, it is preferable that the depth of the notch in the radial direction of the antenna is set within ½ of the width of the antenna in the radial direction of the antenna. In this case, even when the notch is provided, the width of the antenna pattern formed on the antenna can be secured, and radio waves can be received satisfactorily.

  In the timepiece described above, the notch portion may include a notch penetrating from the upper surface to the lower surface of the antenna in the vertical direction in a cross-sectional view perpendicular to the radial direction of the antenna. In this case, since the notch is provided with a notch penetrating from the upper surface to the lower surface of the antenna in the vertical direction in the cross-sectional view, the degree of freedom in the mounting order of the antenna and the structure can be increased. In addition, when the antenna is attached before the structure, the inspection and the like related to the antenna can be performed at an early stage, so that the production efficiency is improved.

  In the timepiece described above, the antenna is provided with a first antenna pattern that is not fed and a second antenna pattern that is fed, and the notch is counterclockwise from the feeding portion of the second antenna pattern. It is preferable to provide it outside the surrounding area of a predetermined length. In this case, since the length of the second antenna pattern necessary for receiving the radio wave is secured, the radio wave is favorably received.

1 is an overall view of a GPS including an electronic timepiece according to an embodiment of the present invention. It is a perspective view which shows the whole electronic timepiece. FIG. 6 is a six-side view showing the entire electronic timepiece. It is a fragmentary sectional view showing the outline of an electronic timepiece. It is a schematic plan view which shows the external appearance of an electronic timepiece. It is an electric control block diagram of an electronic timepiece. It is a top view which shows the external appearance of an antenna body. It is an expansion | deployment perspective view which shows an antenna body, a dial plate, a solar panel, a ground plane, and a ground plane receiving ring. It is an expansion | deployment perspective view which shows the state which fitted the base plate receiving ring to the base plate. It is a development perspective view showing the state where the case where the antenna connection pin was included was accommodated in the ground plate which fitted the ground plate receiving ring. It is an expansion | deployment perspective view which shows the state which installed the antenna body 110 in the installation part of the antenna body in a ground-plate receiving ring from the state shown in FIG. It is an expansion | deployment perspective view which shows the state which attached the solar panel to the ground plane from the state shown in FIG. It is a top view which shows the state which attached the solar panel to the ground plane. It is an expansion perspective view around the 1st position P1 (R1). It is an expansion perspective view around the 2nd position P2 (R2). It is an expansion | deployment perspective view which shows the state which attached the dial to the main plate from the state shown in FIG. It is a top view which shows the state which attached the dial to the main plate. It is an expansion perspective view around the 1st position P1 (R1). It is an expansion perspective view around the 2nd position P2 (R2). It is a top view which shows the external appearance of a dial ring. It is the schematic which shows the external appearance of the electronic timepiece which concerns on a modification.

  Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. However, in each figure, the size and scale of each part are appropriately changed from the actual ones. Further, since the embodiments described below are preferable specific examples of the present invention, various technically preferable limitations are attached thereto. However, the scope of the present invention is particularly limited in the following description. Unless otherwise stated, the present invention is not limited to these forms.

<A: Outline of electronic watch>
An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an overall view of a GPS including an electronic timepiece according to an embodiment of the present invention. First, an outline of GPS in which an electronic timepiece obtains current location information and time information using radio waves as external signals will be described.

  The electronic timepiece 10 is a wristwatch that receives radio waves (satellite signals) from the GPS satellite 8 and corrects the internal time. The electronic timepiece 10 is a surface opposite to the surface that contacts the arm (hereinafter referred to as the back surface) (hereinafter referred to as the surface). ) Is displayed. The GPS satellite 8 is a navigation satellite orbiting in a predetermined orbit in the earth's nourishing sky, and transmits a navigation message superimposed on a 1.57542 GHz radio wave (L1 wave) to the ground. In the following description, the 1.57542 GHz radio wave on which the navigation message is superimposed is referred to as a satellite signal. The satellite signal is a right-handed circularly polarized wave.

  Currently, there are about 31 GPS satellites 8 (only four are shown in FIG. 1), and in order to identify which GPS satellite 8 the satellite signal is transmitted from, each GPS satellite 8 has C A peculiar pattern of 1023 chips (1 ms cycle) called a / A code (Coarse / Acquisition Code) is superimposed on the satellite signal. In the C / A code, each chip is either +1 or -1, and looks like a random pattern. Therefore, by correlating the satellite signal and the pattern of each C / A code, the C / A code superimposed on the satellite signal can be detected.

  The GPS satellite 8 is equipped with an atomic clock, and the satellite signal includes extremely accurate GPS time information measured by the atomic clock. Further, a slight time error of the atomic clock mounted on each GPS satellite 8 is measured by the control segment on the ground, and the time correction parameter for correcting the time error is included in the satellite signal. The electronic timepiece 10 receives a satellite signal transmitted from one GPS satellite 8, and uses an accurate time (time information) obtained by using GPS time information and time correction parameters included therein as an internal time. And

  The satellite signal includes orbit information indicating the position of the GPS satellite 8 on the orbit. The electronic timepiece 10 can perform positioning calculation using GPS time information and orbit information. The positioning calculation is performed on the assumption that a certain amount of error is included in the internal time of the electronic timepiece 10. That is, in addition to the x, y, and z parameters for specifying the three-dimensional position of the electronic timepiece 10, the time error is also an unknown number. For this reason, the electronic timepiece 10 generally receives satellite signals transmitted from four or more GPS satellites 8 and performs positioning calculation using GPS time information and orbit information included therein to determine the current location. Find location information.

Next, a schematic configuration of the electronic timepiece 10 will be described. FIG. 2 is a perspective view showing the external appearance of the electronic timepiece, and FIG. 3 is a six-side view showing the external appearance of the electronic timepiece. FIG. 4 is a partial cross-sectional view showing an outline of the electronic timepiece.
FIG. 3A is a plan view of the electronic timepiece as viewed from the front side. FIG.3 (b) is the side view which looked at 9 o'clock direction from 3 o'clock direction. FIG.3 (c) is the side view which looked at 6 o'clock direction from 12 o'clock direction. FIG. 3D is a side view of the 3 o'clock direction viewed from 9 o'clock direction, and FIG. 3E is a side view of the 12 o'clock direction viewed from 6 o'clock direction. FIG. 3F is a plan view seen from the back side. In addition, the electronic timepiece of this embodiment has a world time function and a chronograph function.

  As shown in FIGS. 2 and 3, the electronic timepiece 10 includes an exterior case 30, a cover glass 33, and a back cover 34. The exterior case 30 is configured by fitting a bezel 32 made of ceramic to a cylindrical case 31 made of metal. On the inner peripheral side of the bezel 32, a disk-shaped dial plate 11 is disposed as a time display portion via a ring-shaped dial ring 40 made of plastic.

  The dial 11 is provided with pointers 21.22 and 23. Further, the dial 11 has a first small window 70 and a pointer 71 that are circular in the 2 o'clock direction from a center, and a second small window 80 and a pointer 81 that is circular in the 10 o'clock direction are circular in the 6 o'clock direction. The third small window 90 and the pointer 91 are provided, and the calendar small window 15 that is rectangular in the 4 o'clock direction is provided. The dial 11, the hands 21, 22, 23, the first small window 70, the second small window 80, the third small window 90, the calendar small window 15, and the like are visible through the cover glass 33.

  On the side surface of the exterior case 30, the A button 61 is positioned at the 8 o'clock position, the B button 62 is positioned at the 10 o'clock position, the C button 63 is positioned at the 2 o'clock position, and the 4 o'clock position. A D button 64 is provided at a position in the direction, and a crown 50 is provided at a position in the 3 o'clock direction. When these A button 61, B button 62, C button 63, D button 64, and crown 50 are operated, an operation signal corresponding to the operation is output.

As shown in FIG. 4, in the electronic timepiece 10, among the two openings of the metal outer case 30, the opening on the front surface side is closed with the cover glass 33 via the bezel 32, and the opening on the back surface side Is closed by a back cover 34 made of metal.
Inside the outer case 30, the dial ring 40 attached to the inner periphery of the bezel 32, the light-transmitting dial plate 11, the pointer shaft 25 penetrating the dial plate 11, and the needle shaft 25 circulates around the needle shaft 25. Needles 21, 22, and 23, and a driving mechanism 140 that drives the hands 21, 22, and 23 are provided.
The pointer shaft 25 is provided along a central axis that passes through the center of the exterior case 30 in plan view and extends in the front-back direction.

  The dial ring 40 has an outer peripheral end in contact with the inner peripheral surface of the bezel 32, a flat plate portion parallel to the cover glass 33, and an inner peripheral end in contact with the dial plate 11. An inclined part inclined to the side is provided. The dial ring 40 has a ring shape in plan view and a mortar shape in sectional view. A donut-shaped storage space is formed by the flat plate portion of the dial ring 40, the inclined portion, and the inner peripheral surface of the bezel 32, and the ring-shaped antenna body 110 is stored in this storage space. .

  The antenna body 110 is formed by using a ring-shaped dielectric as a base material and forming a metal antenna pattern on the base body by plating or silver paste printing. The antenna body 110 is disposed on the outer periphery of the dial plate 11, disposed on the inner peripheral surface side of the bezel 32, and further covered with the dial ring 40 formed of plastic and the cover glass 33, so that the antenna body 110 is good. Secure reception. As the dielectric, a dielectric material that can be used at high frequencies, such as titanium oxide, can be mixed with the resin and molded, and this makes it possible to further reduce the size of the antenna in combination with the shortening of the wavelength of the dielectric.

  The dial 11 is a circular plate that displays the time inside the outer case 30, is formed of a light-transmitting material such as plastic, and includes hands 21, 22, and 23 between the cover glass 33, It is arranged inside the dial ring 40.

  Between the dial plate 11 and the ground plate 125 to which the drive mechanism 140 is attached, a solar panel 135 that performs photovoltaic power generation is provided. The solar panel 135 is a circular flat plate in which a plurality of solar cells (photovoltaic elements) that convert light energy into electric energy (electric power) are connected in series. The solar panel 135 also has a sunlight detection function. On the dial plate 11, the solar panel 135, and the ground plate 125, the pointer shaft 25, the pointer 71 of the first small window 70, the pointer 81 of the second small window 80, and the pointer shaft of the pointer 91 of the third small window 90 (not shown). And the opening of the calendar small window 15 is formed.

  The drive mechanism 140 is attached to the ground plane 125 and is covered with the circuit board 120 from the back side. The drive mechanism 140 has a step motor and a wheel train such as a gear, and the hands 21, 22 and 23 are driven by the step motor rotating the needle shaft 25 via the wheel train. 2 and 3, the pointer 71 of the first small window 70, the pointer 81 of the second small window 80, and the pointer 91 of the third small window 90 also have a similar drive mechanism (not shown). The hands 71, 81, 91 are driven.

  The circuit board 120 includes a receiving unit (GPS module) 122, a control unit 150, and a secondary battery 130 such as a lithium ion battery. The secondary battery 130 is charged with the power generated by the solar panel 135. Further, the circuit board 120 and the antenna body 110 are connected by using antenna connection pins 115. A circuit retainer 123 is provided below the circuit board 120.

The antenna body 110 is fed through a feeding point, and an antenna connection pin 115 disposed on the back side of the antenna body 110 is connected to the feeding point. The antenna connection pin 115 is a pin-shaped connector formed of metal, protrudes from the circuit board 120, passes through an insertion hole opened in the ground plane receiving ring 126, and is inserted into the storage space. Thereby, the circuit board 120 and the antenna body 110 inside the storage space are connected by the antenna connection pins 115.
<B: Electronic watch display function>

Next, the display function of the electronic timepiece 10 will be described. FIG. 5 is a schematic plan view showing the appearance of the electronic timepiece.
As shown in FIG. 5, on the outermost periphery of the dial 11, a scale that divides the outer periphery from 6 to 60 and a 1/5 scale that divides the scale into 5 are written. Using this scale, the hand 21 displays “second” of the chronograph function, the hand 22 displays “minute” of the internal clock, and the hand 23 displays “hour” of the internal clock. The chronograph function can be used by operating the C button 63 and the D button 64.

  On the outer periphery of the circular first small window 70 provided on the dial 11, a scale that divides the outer periphery into 60 divisions and numbers in increments of 10 from “10” to “60” are written. The pointer 71 displays “minute” of the chronograph function using this scale.

On the outer periphery of the circular second small window 80 provided on the dial 11, a scale that divides the outer periphery into 60 divisions and numbers from “0” to “11” are written. The pointer 81 displays “second” of the internal clock using this scale.
The alphabet “Y” is written at the 52 second position of the second small window 80, and the alphabet “N” is written at the 38 second position. This alphabetic character represents the reception result of the satellite signal (Y: reception success, N: reception failure) and the setting of automatic reception of the satellite signal (Y: automatic reception ON, N: automatic reception OFF). When the user operates the B button 62, the pointer 81 indicates either “Y” or “N”, and displays the reception result of the satellite signal. The user can set ON / OFF of automatic reception of satellite signals by operating the A button 61 and the B button 62 and setting the pointer 81 to “Y” or “N”. When the user operates the B button 62 to cause the electronic timepiece 10 to manually receive a satellite signal, the hands 71 display the number of captured satellites.
In this embodiment, the notation “Y” is provided at the position of 52 seconds and the notation “N” is provided at the position of 38 seconds. However, the present invention is not limited to this. The notation “Y” and “N” is preferably provided at a position where the small window including the reception result display 83 is easily provided according to the position where the small window is provided.

The outer periphery of the circular third small window 90 provided on the dial 11 will be described. In the following description of the outer peripheral range, “n-hour direction” (n is an arbitrary natural number) is the direction when the circular outer periphery is viewed from the center of the third small window 90.
On the outer periphery of the range from the 12 o'clock direction to the 6 o'clock direction of the third small window 90, a scale that divides this range into 6 and numbers from “0” to “5” are written. The pointer 91 displays “hour” of the chronograph function using this scale. In the chronograph function, it is possible to measure time up to 5 hours 59 minutes 59 seconds using the hands 21, 71, 91.

  On the outer periphery of the third small window 90 in the range from 6 o'clock to 7 o'clock, the letter “DST” and the symbol “◯” are written. DST (daylight saving time) means daylight saving time. These letters and symbols represent the setting of daylight saving time (DST: daylight saving time ON, ○: daylight saving time OFF). By operating the crown 50 and the B button 62 by the user and setting the hands 91 to “DST” or “◯”, the electronic timepiece 10 can be set to ON / OFF for daylight saving time.

  On the outer periphery of the third small window 90 in the range from 7 o'clock to 9 o'clock, a crescent sickle-shaped symbol 92 is formed along the circumference, with the base end in the 9 o'clock direction being thick and the tip in the 7 o'clock direction being thin. It is written. The symbol 92 is a power indicator of the secondary battery 130 (see FIG. 4), and the pointer 91 indicates one of the base end, the tip end, and the middle depending on the remaining battery level.

  On the outer periphery of the third small window 90 in the range from 9 o'clock to 10 o'clock, an airplane-shaped symbol 93 is written. This symbol represents the airplane mode. When aircraft take off and landing, the reception of satellite signals is prohibited by the Aviation Law. The user can stop the reception of the satellite signal of the electronic timepiece 10 by operating the A button 61 and selecting the symbol 93 (in-flight mode) with the hands 91.

  On the outer periphery of the third small window 90 in the range from the 10 o'clock direction to the 12 o'clock direction, a number “1” and a symbol “4+” are written. These numbers and symbols represent satellite signal reception modes. “1” means that the GPS time information is received and the internal time is corrected, and “4+” means that the GPS time information and the orbit information are received, and the internal time and a time zone described later are corrected. . When the user operates the B button 62, the hands 91 indicate “1” or “4+”, and the reception mode of the satellite signal received immediately before by the electronic timepiece 10 is displayed.

  The calendar small window 15 is provided in an opening portion in which the dial 11 is opened in a rectangular shape, and numbers can be visually recognized from the opening portion. This number represents the “day” of the date.

Here, the relationship among Coordinated Universal Time (UTC), time difference, standard time, and time zone will be described.
A time zone is an area that uses a common standard time, and currently there are 40 types of time zones. Each time zone is distinguished by a time difference between standard time and UTC. For example, Japan belongs to a time zone of +9 hours using standard time which is 9 hours ahead of UTC. The standard time used in each time zone can be obtained from UTC and the time difference between UTC.

As described above, the dial 11 is engraved with a scale indicating 60 minutes and seconds, and the dial ring 40 surrounding the outer periphery of the dial 11 has a time difference from UTC along the scale. The time difference information 45 representing “” is represented by numerals and symbols other than numerals. The numeric time difference information 45 is an integer time difference, and the symbol time difference information 45 is displayed by hands 22, 23, 81 indicating that it is a non-integer time difference. The time difference between the internal time and UTC is The time difference information 45 indicated by the pointer 21 can be confirmed by 50 operations.
The electronic timepiece 10 can represent internal time corresponding to up to 60 different time differences by assigning a temporary difference to one scale of 60 scales provided on the dial 11. In the present embodiment, the time difference information 45 of the “UTC” symbol represents the world coordinated time, which is the standard of the time difference, and the time difference information 45 of the “•” symbol represents a time difference other than an integer. May be used to indicate.

  In the present embodiment, the time difference information 45 of the “·” symbol written between the numbers “8” and “9” on the dial ring 40 represents a time difference of +8.75 hours (+8 hours 45 minutes). , Means UTC + 8.75 hours as the standard time zone. Currently, there are 40 types of time zones in the world including this standard time, and the time difference representing the 40 types of time zones is written as time difference information 45 on the dial ring 40 of the electronic timepiece 10. The time zone display is preferably within 60 types. If it exceeds 60 types, the display becomes small and it may be difficult to determine.

  In the bezel 32 provided around the dial ring 40, city information 35 representing the representative city name of the time zone using the standard time corresponding to the time difference of the time difference information 45 written on the dial ring 40, The time difference information 45 is also written. In this embodiment, the city information 35 is described using a three-letter code in which the city name is abbreviated with a three-letter alphabet. “LON” is London, “PAR” is Paris, “CAI” is Cairo, “JED” is Jeddah, “DXB” is Dubai, “KHI” is Karachi, “DEL” is Delhi, “DAC” is Dhaka, “BKK” "Bangkok", "BJS" Beijing, "TYO" Tokyo, "ADL" is Adelaide, "SYD" is Sydney, "NOU" is Nemea, "WLG" is Wellington, "TBU" is Nukualofa, "CXI" is Kirisima Si Island, "MDY" is Midway Island, "HNL" is Honolulu, "ANC" is Anchorage, "LAX" is Los Angeles, "DEN" is Denver, "CHI" is Chicago, "NYC" is New York, "CCS" is Caracas, “SCL” for Santiago, “RIO” for Rio de Janeiro, “FEN” for Fernando de Noronha, “PD "I represent the Azores, respectively. For example, the code “TYO” represents Tokyo, and the number “9” in the time difference information 45 written on the dial ring 40 corresponding to this code makes it easy for Tokyo to use UTC + 9 hours standard time. Can be judged. In addition, the code “CXI” represents the island of Kirisimai, and from the number “14” of the time difference information 45 written along the dial ring 40 corresponding to this code, the island of Kirisimai uses UTC + 14 hours standard time. Can be easily determined. In the present embodiment, the representation of the representative city names corresponding to the time differences of some of the time difference information 45 is omitted in order to limit the display space and improve the visibility. Moreover, the representation method of a representative city name is an example, and may be represented by other methods. The notation of the time difference information 45 and the city information 35 is referred to as a time zone display 46. In this embodiment, a time zone display 46 equal to the number of time zones used all over the world is shown.

<C: Electrical configuration of electronic watch>
Next, the electrical configuration of the electronic timepiece 10 will be described.
FIG. 6 is an electric control block diagram of the electronic timepiece. As shown in FIG. 6, the electronic timepiece 10 includes a control unit 150 having a basic configuration of a CPU (Central Processing Unit) 153, a RAM (Random Access Memory) 154, and a ROM (Read Only Memory) 155, and a receiving unit (GPS module). ) 122, an input device 157, and peripheral devices for the drive mechanism 140. Each of these devices transmits and receives data via the data bus 159. The input device 157 is the crown 50, the A button 61, the B button 62, the C button 63, and the D button 64 shown in FIG. The electronic timepiece 10 includes a rechargeable secondary battery 130 (see FIG. 4) serving as a power source.

  The receiving unit 122 includes an antenna body 110, processes satellite signals received via the antenna body 110, and acquires GPS mode time information and position information. The antenna body 110 is transmitted from a plurality of GPS satellites 8 (see FIG. 1) orbiting the earth over a predetermined orbit, and the radio wave of the satellite signal that has passed through the cover glass 33 and the dial ring 40 shown in FIG. Receive.

  Although not shown, the receiving unit 122 is an RF (Radio Frequency) unit that receives a satellite signal transmitted from the GPS satellite 8 (see FIG. 1) and converts it into a digital signal, as in a normal GPS device. GPS time information and position information (positioning information) are acquired from the BB unit (base bump unit) that performs correlation determination of received signals and demodulates the navigation message, and the navigation message (satellite signal) demodulated by the BB unit. And an information acquisition unit for outputting. That is, the receiving unit 122 functions as a receiving unit that receives a satellite signal transmitted from the GPS satellite 8 and outputs GPS time information and position information based on the reception result.

  The RF unit includes a bandpass filter, a PLL circuit, an IF filter, a VCO (Voltage Controlled Oscillator), an ADC (A / D converter), a mixer, an LNA (Low Noise Amplifier), an IF amplifier, and the like. The satellite signal extracted by the bandpass filter is amplified by the LNA, mixed with the VCO signal by the mixer, and down-converted to IF (Intermediate Frequency). The IF mixed by the mixer passes through the IF amplifier and IF filter, and is converted to a digital signal by the ADC.

  The BB unit generates a local code generating unit that generates a local code composed of the same C / A code as that used at the time of transmission by the GPS satellite 8, and a correlation value between the local code and a reception signal output from the RF unit. And a correlation unit to calculate. If the correlation value calculated by the correlation unit is equal to or greater than a predetermined threshold, the C / A code used for the received satellite signal matches the generated local code, and the satellite signal is Can be captured (synchronized). Therefore, the navigation message can be demodulated by correlating the received satellite signal with the local code.

  The information acquisition unit acquires GPS time information and position information from the navigation message demodulated by the BB unit. The navigation message includes preamble data, HOW word TOW (Time of Week, also referred to as “Z count”), and subframe data. There are subframe data from subframe 1 to subframe 5, and each subframe includes, for example, satellite correction data including week number data and satellite health data, and ephemeris (detailed orbit information for each GPS satellite 8). ) And almanac (rough orbit information of all GPS satellites 8). Therefore, the information acquisition unit can acquire GPS time information and navigation information by extracting a predetermined data portion from the received navigation message.

The RAM 154 and the ROM 155 are storage units of the electronic timepiece 10.
The ROM 155 stores programs executed by the CPU 153, time zone information, and the like. The time zone information is data for managing position information (latitude / longitude) of a region (time zone) using a common standard time and a time difference with respect to UTC.
The CPU 153 uses the RAM 154 as a work area and executes various programs, controls, and timings by executing programs stored in the ROM 155. This timing is performed, for example, by counting the number of reference signal pulses from an oscillation circuit (not shown).

  The CPU 153 includes time information calculated from GPS time information and time correction parameters, current position information (latitude and longitude) calculated from GPS time information and orbit information, and a time zone stored in the ROM 155 (storage unit). Correct the internal clock based on the information. The CPU 153 performs control to drive the drive mechanism 140 so that the internal time is displayed. Thereby, the internal time is displayed on the electronic timepiece 10 by the hands 22, 23, 81 (see FIG. 5).

<D: Configuration of notch portion of antenna body in electronic timepiece>
Next, the configuration of the notch portion of the antenna body 110 in the electronic timepiece 10 will be described. FIG. 7 is a plan view of the antenna body 110. As shown in FIG. 7, the antenna body 110 of the present embodiment is formed in a ring shape, and a first position P1, a second position P2, a third position P3, and a fourth position P4 are disposed on the inner periphery of the antenna body 110. The notch portions 111 are provided at the four positions. As shown in FIG. 7, the depth W1 of the notch 111 in the radial direction of the antenna body 110 is set to be within ½ of the width W2 of the antenna body 110 in the radial direction. The reason why the depth W1 of the notch 111 is set in this way is to secure the width of the first antenna pattern 112 provided on the upper surface of the antenna body 110. In this embodiment, since the width of the first antenna pattern 112 is secured, radio waves can be received satisfactorily.
The first antenna pattern 112 is formed by performing plating or paste printing using a metal or other conductive material. As shown in FIG. 7, the first antenna pattern 112 has a notch 112a and is formed in a C shape with a part of the ring cut out. A second antenna pattern 113 is formed on the inner peripheral side surface of the antenna body 110. Similar to the first antenna pattern 112, the second antenna pattern 113 is formed by performing plating, paste printing, or the like using a metal or other conductive material. The second antenna pattern 113 is an arc-shaped element as shown in FIG. 7, and is formed so as to maintain a certain distance from the first antenna pattern 112. A power feeding plate 114 is disposed at one end of the second antenna pattern 113 so as to be in contact with the end, and the power feeding plate 114 is connected to the antenna connection pin on the bottom surface side of the antenna body 110 as described later. Contact. Therefore, the end portion of the second antenna pattern 113 in contact with the power feeding plate 114 is a power feeding position where power feeding is performed via the antenna connection pin and the power feeding plate 114. From the feeding position, it is necessary to secure the second antenna pattern 113 by a predetermined length on the left rotation direction side shown in FIG. 7, and the notch 111 cannot be formed in a region corresponding to the predetermined length. . In the present embodiment, since the second antenna pattern 113 is secured by a predetermined length on the left rotation direction side from the power feeding position, radio waves can be received satisfactorily.

  In the notch 111 of the antenna body 110 as described above, a plurality of fixing portions of the structure are housed. Hereinafter, the positional relationship between the notch portion 111 of the antenna body 110 and the fixing portions of the plurality of structures will be described with reference to FIGS. 8 to 20. FIG. 8 is an exploded perspective view showing the antenna body 110, the dial plate 11, the solar panel 135, the ground plane 125, and the ground plane receiving ring 126.

  As shown in FIG. 8, the notch 110a is formed in three places on the outer periphery of the antenna body 110, and the notch 110a is provided with a flange 110b. The antenna body 110 is fixed to the ground plane receiving ring 126 by engaging the flange portion 110b with a hook portion 126b of the ground plane receiving ring 126 described later.

  On the dial plate 11, fixing convex portions 11 a and 11 b for fixing the dial plate 11 to the base plate 125 are formed at four locations. Further, the solar panel 135 is formed with four fixing projections 135 a and 135 b for fixing the solar panel 135 to the ground plate 125. Further, the solar panel 135 is formed with two flanges 135 c for fixing the solar panel 135 to the ground plate 125.

  On the base plate 125, a set of first fixing convex portions 125a and second fixing convex portions 125b is formed at four locations of a first position R1, a second position R2, a third position R3, and a fourth position R4. ing. Two second fixing projections 125b are provided in each of the first position R1, the second position R2, and the fourth position R4, and the circumferential direction of the ground plate 125 is centered on the first fixing projection 125a. On both sides, the first fixing convex portion 125a is disposed with a predetermined interval. At the third position R3, only one second fixing convex portion 125b has a predetermined distance from the first fixing convex portion 125a on one side in the circumferential direction of the ground plate 125 with the first fixing convex portion 125a as the center. Are arranged. At the third position R3, the flange portion 125d provided with the fixing pin 125c of the dial ring 40 is formed extending in the circumferential direction of the main plate 125. An end of the flange portion 125d is connected to the first fixing convex portion 125a on the other side where the second fixing convex portion 125b in the circumferential direction of the ground plate 125 is not disposed with the first fixing convex portion 125a as a center. It is provided at a position having an interval. Therefore, the end portion of the flange portion 125d functions as another second fixing convex portion 125b. Fixing pins 125c provided at the first position R1 and the third position R3 are fitted into holes of the dial ring 40 described later, and the dial ring 40 is fixed. The ground plate 125 is formed with a case housing portion 125e for housing the case 116 of the antenna connection pin 115.

  The ground plane receiving ring 126 includes a panel hook portion 126a for fixing the solar panel 135, an antenna body hook portion 126b for fixing the antenna body 110, and a case hole 127 into which the case 116 of the antenna connection pin 115 is inserted. It has.

  FIG. 9 is an exploded perspective view showing a state in which the main plate receiving ring 126 is fitted to the main plate 125. As shown in FIG. 9, by fitting the base plate receiving ring 126 to the base plate 125, the panel hook portion 126 a of the base plate receiving ring 126 also has the first fixing convex portion 125 a and the second fixing convex portion in the circumferential direction of the base plate 125. It becomes lined up with the part 125b.

  FIG. 10 is an exploded perspective view showing a state in which the case 116 in which the antenna connection pin 115 is contained is accommodated in the ground plate 125 into which the ground plate receiving ring 126 is fitted. As shown in FIG. 10, the front ends of the antenna connection pins 115 accommodated in the ground plane receiving ring 126 and the ground plane 125 are located at the installation portion of the antenna body 110 in the ground plane receiving ring 126, and the antenna body 110 is placed in the installation portion. The power feed plate 114 (see FIG. 7) attached to the antenna body 110 and the tip of the antenna connection pin 115 come into contact with each other.

FIG. 11 is an exploded perspective view showing a state in which the antenna body 110 is installed on the installation portion of the antenna body 110 in the ground plane receiving ring 126 from the state shown in FIG. As shown in FIG. 11, the antenna body 110 is connected to the ground plate receiving ring 126 by the engagement of the flange portion 110 b provided in the notch 110 a on the outer periphery of the antenna body 110 and the hook portion 126 b of the ground plate receiving ring 126. Fixed to.
The installation portion of the antenna body 110 in the ground plane receiving ring 126 is provided over the entire circumferential direction of the ground plane 125. As shown in FIG. 9, the first position R1, the second position R2, and the third position R3 are provided. The first fixing convex portion 125a, the second fixing convex portion 125b, the fixing pin 125c, and the panel hook portion 126a are provided at the fourth position R4.
However, on the inner periphery of the antenna body 110, the first position P1, the second position P2, and the third position P3 corresponding to the first position R1, the second position R2, the third position R3, and the fourth position R4, respectively. And the notch part 111 is provided in four places of the 4th position P4 (refer FIG. 7).
Therefore, as shown in FIG. 11, the first fixing convex portion 125a, the second fixing convex portion 125b, the fixing pin 125c, and the panel hook portion 126a are accommodated in the notch portion 111, and the antenna body 110 is installed. It will not hinder.

FIG. 12 is an exploded perspective view showing a state in which the solar panel 135 is attached to the ground plate 125 from the state shown in FIG. FIG. 13 is a plan view of the state of FIG. 14 is an enlarged perspective view around the first position P1 (R1), and FIG. 15 is an enlarged perspective view around the second position P2 (R2).
As shown in FIGS. 12 and 13, the notch 111 of the antenna body 110 is not only formed with notches in the radial direction and the circumferential direction of the antenna body 110 but also in the vertical direction of the antenna body 110. A notch is formed. That is, the notch is a notch that penetrates from the upper surface to the lower surface of the antenna body 110. Therefore, as shown in FIG. 11, even when the antenna body 110 is first attached on the ground plane receiving ring 126, as shown in FIGS. 12 and 13, the solar panel 135 is attached to the ground plane 125 from above. be able to. Therefore, the degree of freedom with respect to the mounting order of components is high, and the production efficiency can be improved. The electronic timepiece requires a radio wave reception inspection process, but according to the present invention, there is an advantage that the antenna body can be attached early and the radio wave reception inspection process can be performed at an early stage.

When the solar panel 135 is attached to the ground plate 125, the concave portion between the fixing convex portion 135a and the fixing convex portion 135b of the solar panel 135 is fitted into the first fixing convex portion 125a of the ground plate 125. At this time, the fixing convex portion 135a of the solar panel 135 is fitted into the first fixing convex portion 125a and the second fixing convex portion 125b of the ground plate 125, and the fixing convex portion 135b of the solar panel 135 is fitted to the ground plate 125. The first fixing convex portion 125a and the second fixing convex portion 125b are fitted together. In this way, movement of the solar panel 135 in the circumferential direction is restricted.
As described above, in order to attach the solar panel 135 to the ground plate 125, the fixing convex portion 135a and the fixing convex portion 135b are projected from the outer periphery of the solar panel 135, and the fixing convex portion 135a and the fixing convex portion 135b are fitted together. The first fixing convex portion 125a and the second fixing convex portion 125b are provided on the ground plate 125. And the fixing | fixed part of the solar panel 135 comprised by these fixing convex parts 135a, the fixing convex part 135b, the 1st fixing convex part 125a, and the 2nd fixing convex part 125b is shown in FIG.13 and FIG.14. As shown, the antenna body 110 is housed in a notch 111. Therefore, when the solar panel 135 is attached to the ground plane 125, the antenna body 110 is arranged in the same plane as the solar panel 135, but the innermost peripheral position of the antenna body 110 is set to the fixing convex portion 135a and the fixing convex portion 135b. The size of the electronic timepiece 10 in the plane direction can be made closer to the center side of the solar panel 135 than the tip of the solar panel 135, that is, closer to the outer periphery of the solar panel 135 in which the fixing convex portion 135 a and the fixing convex portion 135 b are projected. Can be reduced.

  As shown in FIGS. 13 and 15, at the second position P2 and the fourth position P4, the flange 135c formed on the solar panel 135 is engaged with the panel hook portion 126a formed on the main plate receiving ring 126. Therefore, the upward movement of the solar panel 135 is restricted. In addition, since the fixing portion of the solar panel 135 constituted by the flange 135c and the panel hook portion 126a is also housed in the cutout portion 111 of the antenna body 110, the planar direction of the electronic timepiece 10 is the same as described above. The size can be reduced.

FIG. 16 is an exploded perspective view showing a state in which the dial 11 is attached to the main plate 125 from the state shown in FIG. FIG. 17 is a plan view of the state of FIG. 18 is an enlarged perspective view around the first position P1 (R1), and FIG. 19 is an enlarged perspective view around the second position P2 (R2).
As shown in FIGS. 16 and 17, the notch 111 of the antenna body 110 is not only formed with a notch in the radial direction and the circumferential direction of the antenna body 110 but also in the vertical direction of the antenna body 110. A notch is formed. Therefore, even when the antenna body 110 is first attached on the ground plane receiving ring 126 and the solar panel 135 is attached to the ground plane 125 as shown in FIG. 11, as shown in FIGS. The dial 11 can be attached to the main plate 125. Therefore, the degree of freedom with respect to the mounting order of components is high, and the production efficiency can be improved. The electronic timepiece requires a radio wave reception inspection process, but according to the present invention, there is an advantage that the antenna body can be attached early and the radio wave reception inspection process can be performed at an early stage.

When attaching the dial plate 11 to the base plate 125, the concave portion between the fixing convex portion 11 a and the fixing convex portion 11 b of the dial plate 11 is fitted into the first fixing convex portion 125 a of the base plate 125. In this way, movement of the dial 11 in the circumferential direction is restricted.
In this way, in order to attach the dial plate 11 to the base plate 125, the fixing convex portion 11a and the fixing convex portion 11b are projected on the outer periphery of the dial plate 11, and between the fixing convex portion 11a and the fixing convex portion 11b. A first fixing convex portion 125 a for fitting the concave portions is provided on the ground plate 125. However, the fixing portion of the dial plate 11 constituted by the fixing convex portion 11a, the fixing convex portion 11b, and the first fixing convex portion 125a is formed on the antenna body 110 as shown in FIGS. It is stored in the notch 111. Therefore, when the dial plate 11 is attached to the ground plate 125, the antenna body 110 is arranged in the same plane as the dial plate 11, but the innermost peripheral position of the antenna body 110 is set to the fixing convex portion 11a and the fixing convex portion 11b. The size of the electronic timepiece 10 in the plane direction can be made closer to the center side of the dial 11 than the tip of the dial, that is, the outer periphery of the dial 11 on which the fixing convex portion 11a and the fixing convex portion 11b are projected. Can be reduced.

  As described above, in the present invention, the solar panel 135 as the first structure and the dial 11 as the second structure are provided, and the solar panel 135 as the first structure is fixed. As one fixing portion, a fixing convex portion 135a, a fixing convex portion 135b, a first fixing convex portion 125a, and a second fixing convex portion 125b are provided. In addition, as a second fixing part for fixing the dial plate 11 as the second structure, a fixing convex part 11a, a fixing convex part 11b, and a first fixing convex part 125a are provided. That is, the first fixing convex portion 125a is commonly used as a fixing portion for the first structure and the second structure. And these 1st fixing | fixed part and 2nd fixing | fixed part are accommodated in the notch part 111 with which the inner periphery of the antenna body 110 was equipped. Therefore, the shape of the antenna body 110 can be simplified, and the electronic timepiece 10 can be reduced in size. Further, even when the solar panel 135 and the antenna body 110, and the dial plate 11 and the antenna body 110 are arranged on the same plane, the innermost peripheral position of the antenna body 110 is higher than the tips of the first fixing portion and the second fixing portion. Thus, the size of the electronic timepiece 10 in the planar direction can be reduced.

  FIG. 20 is a plan view showing the dial ring 40. As shown in FIG. 20, the dial ring 40 has two holes 40a. When the dial ring 40 is attached to the base plate 125, the hole 40a of the dial ring 40 is fitted to the fixing pin 125c formed on the base plate 125 shown in FIGS. In this way, movement of the dial ring 40 in the circumferential direction is restricted.

  As shown in FIGS. 16, 17, and 19, the fixing pin 125 c that is a fixing portion of the dial ring 40 is housed in the notch 111 of the antenna body 110. Therefore, even when the fixing pin 125c and the antenna body 110 are arranged on the same plane, the size of the electronic timepiece 10 in the plane direction can be reduced.

  As described above, in the present invention, not only the fixing portion of the solar panel 135 and the dial 11 but also the fixing portion (third fixing portion) of the dial ring 40 as the third structure is formed in the same notch portion 111. Since it is stored in the storage, the size of the electronic timepiece 10 to which a large number of components are attached can be reduced in the planar direction.

<Modification>
The present invention is not limited to the above-described embodiments, and various modifications as described below are possible, for example. Moreover, the aspect of the deformation | transformation described below can also combine suitably arbitrarily selected 1 or several.

(Modification 1)
FIG. 21 is a schematic view showing the appearance of an electronic timepiece according to a modification.
Although the electronic timepiece 10 has been described as having a chronograph function as shown in FIG. 5 in the above embodiment, the present invention is not limited to this configuration.
Hereinafter, an electronic timepiece 200 according to a modification will be described. In addition, about the component same as embodiment, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

As shown in FIG. 20, on the outer periphery of the dial 12, a scale that divides the outer periphery into 60 divisions is written. Using this scale, the hands 22, 23 and 24 display the time of the internal clock.
The dial 12 is provided with a rectangular calendar window 16 having a good visibility and a direction of 3 o'clock from the center. The calendar small window 16 is provided by opening the dial 12 so that numbers can be visually recognized from the opening. This number represents the “day” of the date.

The dial 12 is engraved with a scale for displaying 60 divided minutes and seconds, and an outer peripheral portion provided around the dial 12 is used around the scale 40 worldwide. A type of time zone display 46 is shown. The time zone of the internal time displayed by the hands 22, 23, 24 can be confirmed by the time zone display 46 indicated by the hands 24 by operating the crown 50.

  As described above, also in the electronic timepiece 200 according to the present modification, the solar panel, the dial plate 12 and the dial ring 40 are attached to the ground plate. However, as in the above-described embodiment, these fixing portions are the antenna body. Since it is housed in the notch, the size of the electronic timepiece 200 in the plane direction can be kept small.

(Modification 2)
In the embodiment described above, the cutout portions of the antenna body are provided at four locations, but the present invention is not limited to such a configuration. There may be fewer than four notches, and there may be more than four. Moreover, the aspect of the fixing part of the solar panel, dial, and dial ring described above is also an example, and can be changed as appropriate. Furthermore, although embodiment mentioned above demonstrated the example using a solar panel, a dial plate, and a dial ring as a structure, this invention is not limited to such a structure. The present invention can also be applied to a fixing portion of another structure in which the positional relationship in the planar direction can affect each other with the ring-shaped antenna body.

(Modification 3)
In the above-described embodiments and modifications, the present invention is applied to an analog electronic timepiece. However, the present invention can be applied to a digital electronic timepiece, a quartz watch, a table clock, a wall clock, or the like.

DESCRIPTION OF SYMBOLS 10 ... Electronic timepiece, 11 ... Dial, 11a, 11b ... Fixing convex part, 12 ... Dial, 40 ... Dial ring, 40a ... Hole, 110 ... Antenna body, 111 ... Notch, 112 ... First antenna Pattern 113 113 second antenna pattern 114 power feeding plate 115 antenna connecting pin 116 case 125 125 ground plate 125a first fixing convex 125b second fixing convex 125c fixing Pin 125d ... Flange part 126 ... Base plate receiving ring 126a ... Panel hook part 126b ... Antenna body hook part 135 ... Solar panel 135a ... Fixing convex part 135b ... Fixing convex part 135c ... Flange 200 ... an electronic clock.

Claims (6)

A first structure;
A second structure;
A first fixing part for fixing the first structure;
A second fixing portion for fixing the second structure;
A ring-shaped antenna;
An inner periphery of the ring-shaped antenna includes a notch portion in which the first fixing portion and the second fixing portion are accommodated.
A watch characterized by that. The first structure and the second structure are stacked in a vertical direction in a cross-sectional view perpendicular to the radial direction of the antenna, and the first fixing portion and the second fixing portion are At least partially shared,
The timepiece according to claim 1. A third fixing portion that includes a third structure and fixes the third structure is housed in the notch.
The timepiece according to claim 1, wherein the timepiece is a timepiece. The depth of the notch in the radial direction of the antenna is set within ½ of the width of the antenna in the radial direction of the antenna.
The timepiece according to any one of claims 1 to 3, wherein the timepiece is characterized in that The notch includes a notch penetrating from the upper surface to the lower surface of the antenna in the vertical direction in a cross-sectional view in a direction perpendicular to the radial direction of the antenna.
The timepiece according to any one of claims 1 to 4, wherein the timepiece is characterized in that The antenna is provided with a first antenna pattern that is not fed and a second antenna pattern that is fed.
The notch is provided outside a region of a predetermined length counterclockwise from the feeding portion of the second antenna pattern.
The timepiece according to any one of claims 1 to 5, wherein the timepiece is characterized in that

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