clock

Abstract

To provide a watch which allows a dial to be positioned even after being subjected to a drop impact and the planar size thereof to be reduced.SOLUTION: A watch provided herein comprises a dial receiving member made of resin and provided with a dial retaining surface, a positioning pin made of a metal material and disposed to protrude from the dial retaining surface, and a dial disposed at position overlapping the dial retaining surface and provided with a positioning receiver to be engaged with the positioning pin.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a watch. [Background technology]

[0002] Patent Document 1 discloses that a first fixing protrusion is formed on the main plate, and a recess in the solar panel is fitted into this protrusion to restrict circumferential movement of the solar panel. It also discloses that a recess in the dial is fitted into the first fixing protrusion on the main plate to restrict circumferential movement of the dial. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-169609 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, convex portions are formed on a resin base plate for guidance, so in consideration of the impact of the watch being dropped, the size of the convex portions needs to be large, and the concave portions of the dial and solar panel also need to be large to match the convex portions, which creates the problem of increasing the planar size of the watch. [Means for solving the problem]

[0005] The electronic timepiece disclosed herein is characterized by comprising a resin dial support member having a dial holding surface, a positioning pin formed of a metal material and arranged to protrude from the dial holding surface, and a dial arranged in a position overlapping the dial holding surface and having a positioning receiver portion that engages with the positioning pin. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 1 is a front view showing an electronic timepiece according to a first embodiment. [Figure 2]1 is a schematic cross-sectional view showing an electronic timepiece according to a first embodiment. [Figure 3] FIG. 1 is an exploded perspective view showing the main parts of an electronic timepiece according to a first embodiment. [Figure 4] FIG. 2 is a cross-sectional view showing the positioning structure for the dial and solar panel of the first embodiment. [Figure 5] FIG. 2 is an enlarged perspective view showing the positioning structure for the dial and solar panel of the first embodiment. [Figure 6] FIG. 10 is a cross-sectional view showing the positioning structure for the dial and solar panel of the second embodiment. [Figure 7] FIG. 10 is a cross-sectional view showing a modified example of a positioning structure for the dial and solar panel. [Figure 8] FIG. 10 is an enlarged plan view showing a positioning receiving portion of a dial of another modified example. DETAILED DESCRIPTION OF THE INVENTION

[0007] [First embodiment] An electronic timepiece 10 according to a first embodiment will now be described with reference to the drawings. FIG. 1 is a plan view of the electronic timepiece 10 as seen from the front side, and FIG. 2 is a cross-sectional view showing an outline of the electronic timepiece 10. As shown in FIG. The electronic watch 10 is a wristwatch that receives radio waves from GPS satellites to correct its internal time. GPS is an abbreviation for Global Positioning System. GPS satellites are navigation satellites that orbit the Earth in a predetermined orbit, transmitting a navigation message onto 1.57542 GHz radio waves that are superimposed on the ground. In the following explanation, the 1.57542 GHz radio waves onto which the navigation message is superimposed are referred to as satellite signals. The satellite signals are right-handed circularly polarized waves.

[0008] As shown in Figures 1 and 2, the electronic timepiece 10 comprises an exterior case 30, a crystal 33, and a metal back cover 34. The exterior case 30 is constructed by fitting a metal bezel 32 into a cylindrical metal case 31. In the following explanation, the crystal 33 side of each component of the electronic timepiece 10 is defined as the front or top surface, and the back cover 34 side is defined as the back or bottom surface. Arranged inside the exterior case 30 are a dial ring 40 attached to the inner circumference of the bezel 32, a light-transmitting dial 11, a solar panel 50 which is a solar cell, a ring-shaped calendar wheel 16, a first magnetic shield 160, a main plate 100, a circuit board 120, a second magnetic shield 170, and a circuit holder 122.

[0009] Further, inside the case 30, there are arranged pivots 25, 26, 27 arranged at the plane center of the dial 11, hands 21, 22, 23 attached to the pivots 25, 26, 27, and a drive mechanism 140 that drives the hands 21, 22, 23 and the calendar wheel 16. As shown in Figure 1, on the side of the exterior case 30, with respect to the planar center of the dial 11, button A 12 is provided at the 2 o'clock position, button B 13 is provided at the 4 o'clock position, and crown 14 is provided at the 3 o'clock position. The dial 11 and the solar panel 50 are provided with small calendar windows 15, 55. Therefore, the dial 11, hands 21, 22, 23, and calendar wheel 16 can be seen through the crystal 33 attached to the opening of the bezel 32 and the small calendar windows 15, 55.

[0010] The dial 11 is made of a light-transmitting synthetic resin material, such as polycarbonate. A solar panel 50 for generating photovoltaic power is disposed on the back of the dial 11. The solar panel 50 is a circular flat plate with a plurality of solar cells connected in series that convert light energy into electrical energy. The dial 11 and solar panel 50 are arranged one on top of the other, with their outer peripheries positioned on the underside of the inner periphery of the dial ring 40. In other words, the outer peripheries of the dial 11 and solar panel 50 are covered by the dial ring 40. For this reason, the dial ring 40 functions as a trim that frames the outer periphery of the dial 11, and the diameter of the inner periphery opening of the dial ring 40 is the trim diameter of the dial 11. A calendar wheel 16 is disposed on the back side of the solar panel 50, and this calendar wheel 16 can be seen through a small calendar window 15. As shown in FIG. 3, the calendar wheel 16 is restricted by a disc-shaped calendar retainer 17 so as not to move toward the dial 11.

[0011] FIG. 3 is an exploded perspective view showing the positioning structure of the dial 11 and solar panel 50 of the electronic timepiece 10, FIG. 4 is a cross-sectional view showing the main parts of the positioning structure, and FIG. 5 is an enlarged perspective view showing the main parts of the positioning structure. The base plate 100 is made of a synthetic resin material, and as shown in Fig. 3, a first protrusion 101 and a second protrusion 102 are formed on the outer periphery of the surface of the base plate 100, protruding from the base plate 100 toward the cover glass 33. The first protrusion 101 is formed in one location, and the second protrusions 102 are formed in multiple locations, specifically three locations. The top surfaces of the first protrusion 101 and the second protrusion 102 are flat and serve as mounting surfaces on which the dial 11 and the solar panel 50 are placed. Therefore, the top surfaces of the first protrusion 101 and the second protrusion 102 form a dial holding surface 103 that holds the dial 11 and the solar panel 50, and the main plate 100 forms a dial receiving member having the dial holding surface 103. A positioning pin 80 is arranged on the dial holding surface 103. The positioning pin 80 is a round bar-shaped member made of a non-magnetic metal material, such as brass or phosphor bronze. The positioning pin 80 has a diameter of 0.4 to 0.6 mm and a length of approximately 1.0 to 4.0 mm. The lower side of the positioning pin 80 is press-fitted into the through-holes formed in the first protrusion 101 and the second protrusion 102, and the upper side protrudes in the normal direction of the dial holding surface 103.

[0012] Positioning receiving portions 110 that engage with the positioning pins 80 are provided at four locations on the outer peripheral edge of the dial 11. The positioning receiving portions 110 have two fixing protrusions 111, 112 that protrude outward from the outer peripheral surface of the dial 11, and an engagement groove 113 in which the positioning pin 80 is positioned is formed between these fixing protrusions 111, 112. Second positioning receivers 510 that engage with positioning pins 80 are provided at four locations on the outer periphery of solar panel 50. Second positioning receivers 510 include two fixing protrusions 511, 512 that protrude outward from the outer periphery of solar panel 50, and an engagement groove 513 in which positioning pin 80 is positioned is formed between these fixing protrusions 511, 512. The dial 11 and the solar panel 50 are placed on top of each other on the dial holding surface 103 and are attached by engaging the positioning pins 80 with the engagement grooves 113 and 513 . For this reason, the dial 11 and the solar panel 50 are positioned so that they overlap the dial holding surface 103, i.e., when viewed in a planar view from a normal direction perpendicular to the surface of the dial 11, the positioning receiving portion 110 of the dial 11 and the second positioning receiving portion 510 of the solar panel 50 overlap the dial holding surface 103. In addition, a conductive member 60 is disposed on the first protrusion 101, which electrically connects an electrode terminal formed on the rear surface of the solar panel 50 to a terminal of the circuit board 120. The conductive member 60 is a coil spring made of a conductive material such as metal, and is provided so as to penetrate the first protrusion 101.

[0013] An antenna 200 is attached to the outer periphery of the base plate 100 with screws 250 . As shown in FIG. 3, the antenna 200 is a ring antenna for receiving satellite signals, and is formed into a ring shape as a whole by forming an antenna electrode on the surface of a dielectric substrate 201 by plating or silver paste printing. The dielectric substrate 201 comprises a main body 210 formed in an annular shape and an antenna fixing portion 220. The antenna fixing portions 220 are provided at multiple locations for fixing the dielectric substrate 201 to the base plate 100 with screws 250. The top surface of the antenna fixing portion 220 is lower than the dial holding surface 103, allowing the dial 11 and solar panel 50 to be arranged so that they overlap the antenna fixing portion 220 and screws 250 in a plan view. The inner circumferential surface of the main body 210 is formed with a storage section 211 for storing the first protrusion 101 and the second protrusion 102, i.e., for storing the positioning pin 80. As shown in Fig. 5, the storage section 211 is a recess formed in the inner circumferential surface of the main body 210. For this reason, as shown in Figs. 4 and 5, the radial thickness of the portion of the main body 210 of the antenna 200 where the storage section 211 is formed is smaller than that of other portions.

[0014] 2 and 4, a dial ring 40 is disposed along the outer periphery of the dial 11. The dial ring 40 is made of a ring-shaped synthetic resin material and has a flat portion 41 and an inclined portion 42. The flat portion 41 is arranged parallel to the crystal 33, with the upper surface of its outer circumferential edge contacting the underside of the protrusion on the inner periphery of the bezel 32. The inclined portion 42 extends from the flat portion 41, with the underside of its inner circumferential edge contacting the dial 11. The surface of the inclined portion 42, i.e., the inner circumferential surface of the dial ring 40, is inclined so that its diameter decreases from the front side to the back side. As a result, the height of the inner circumferential surface of the dial ring 40 relative to the dial 11 decreases as it moves toward the center of the electronic timepiece 10, allowing the dial 11 to be viewed from a wide angle range.

[0015] A doughnut-shaped storage space is formed by the dial ring 40 and the bezel 32, and this storage space houses the antenna 200. The antenna 200 is electrically connected to the circuit board 120 by an antenna feed pin 240 provided in a through-hole 105 that penetrates the main plate 100. Furthermore, the ground pattern of circuit board 120 is electrically connected to metal back cover 34 via conductive spring portion 123 of circuit retainer 122, and exterior case 30 and back cover 34 can be used as ground planes along with circuit board 120. Using exterior case 30 and back cover 34 as ground planes allows for a larger area of ​​the ground plane, improving antenna gain and antenna characteristics. The dial ring 40 is made of a non-conductive material such as synthetic resin, so it does not interfere with radio wave reception by the antenna 200. Furthermore, because the dial ring 40 covers the antenna 200, it is concealed, preventing the external appearance of the electronic timepiece 10 from looking out of place and improving the design of the electronic timepiece 10. 4, a recess 43 is formed on the underside of the dial ring 40, and the upper end of the positioning pin 80 is inserted into this recess 43. In this way, the dial ring 40 is positioned by the positioning pin 80.

[0016] As shown in FIG. 2, the drive mechanism 140 is attached to the back surface of the main plate 100, and is covered from the back surface side by the circuit board 120. The drive mechanism 140 has a step motor and a wheel train such as gears, and drives the hands 21 to 23 and the calendar wheel 16. In this embodiment, the hand 21 is a second hand, the hand 22 is a minute hand, the hand 23 is an hour hand, and the calendar wheel 16 is a date wheel. In this embodiment, the drive mechanism 140 comprises an hour and minute hand drive mechanism that drives the hands 22 and 23, a second hand drive mechanism that drives the hand 21, and a date wheel drive mechanism that drives the calendar wheel 16.

[0017] A first magnetic shield 160 is provided on the dial 11 side of the main plate 100, specifically between the calendar wheel 16 and the main plate 100. The first magnetic shield 160 is configured to overlap each motor of the drive mechanism 140 in a plan view. The first magnetic shield 160 has the function of preventing the motor's coil from malfunctioning due to the influence of an external magnetic field, and the function of holding down the hour wheel to which the hour hand (hand 23) is attached. The first magnetic shield 160 is screwed to the main plate 100, and has holes formed therein for accommodating the pivots 25, 26, 27, the date indicator wheel, etc.

[0018] 2, a GPS receiving IC 300 and a control IC 400 are mounted on the circuit board 120. In addition, a secondary battery 130 such as a lithium ion battery that is charged with power generated by the solar panel 50 is disposed in a cutout portion of the circuit board 120. A second magnetic shield 170 is arranged on the back side of the circuit board 120, on which the GPS reception IC 300 and control IC 400 are provided, so as to overlap each motor of the drive mechanism 140 in a plan view. The second magnetic shield 170 is shaped so that it does not overlap the secondary battery 130, GPS reception IC 300, or control IC 400 in a plan view. The second magnetic shield 170 prevents the motor coils from being affected by external magnetic fields, causing the motor to malfunction. A circuit retainer 122 that secures the circuit board 120 to the base plate 100 is disposed on the back side of the second magnetic screen 170. The circuit retainer 122 is shaped so that it does not overlap the secondary battery 130 in a plan view. The circuit retainer 122 is made of a metal plate and has a conductive spring portion 123 that comes into contact with the back cover 34.

[0019] [Effects of the first embodiment] According to the first embodiment, the dial 11 is positioned using a metal positioning pin 80, which means that the strength of the positioning pin 80 is greater than when a resin positioning member is used for positioning, allowing the diameter of the positioning pin 80 to be smaller, and the planar size of the electronic timepiece 10 to be smaller, making it possible to miniaturize it. That is, when a resin positioning member is used, the diameter of the positioning member needs to be larger to take into account factors such as the impact of the electronic timepiece 10 being dropped, and the planar size of the timepiece also increases accordingly. In contrast, in this embodiment, a metal positioning pin 80 is used, so the diameter required to ensure strength can be smaller than when made of resin, and the planar size of the electronic timepiece 10 can be reduced accordingly, making it possible to miniaturize it. Furthermore, because the metal positioning pins 80 are used, the weight restrictions on the dial 11, including decorative elements such as indexes, can be alleviated, thereby improving the degree of freedom in designing the dial 11.

[0020] Since the positioning pin 80 is provided on the dial holding surface 103 of the main plate 100, the main plate 100 can be used as a dial receiving member. This eliminates the need to provide a dial receiving member separate from the main plate 100, and simply attaches the metal positioning pin 80 to the main plate 100, which has been used conventionally, resulting in a simple structure that can be realized at low cost.

[0021] Because the positioning pin 80 is made from a non-magnetic metal material such as brass or phosphor bronze, it is possible to use a positioning pin 80 that is less anti-magnetic, reducing the impact on timepiece components, such as the impact on radio wave reception by the antenna 200. Furthermore, because the positioning pin 80 is made from brass or phosphor bronze, even tiny pins with diameters of around 0.4 to 0.6 mm used in the electronic timepiece 10 can be manufactured relatively easily and inexpensively.

[0022] The second positioning receive portion 510 of the solar panel 50 is positioned by engaging with the positioning pin 80 together with the positioning receive portion 110 of the dial 11, preventing misalignment between the dial 11 and the solar panel 50. This also prevents misalignment of the calendar windows 15, 55 formed on the dial 11 and the solar panel 50. Furthermore, compared to when separate positioning pins are provided for the dial 11 and the solar panel 50, the number of positioning pins 80 can be reduced, and the area required for positioning, such as the area occupied by the positioning pins 80, can be reduced.

[0023] The positioning pin 80 is inserted into the recess 43 of the dial ring 40 and is also used to position the dial ring 40, preventing misalignment between the dial plate 11 and the dial ring 40. This prevents a decrease in the design of the electronic timepiece 10, and, if the dial ring 40 has graduations, prevents the pointer position from shifting relative to the graduations, resulting in a decrease in indication accuracy. Furthermore, since the positioning pin 80 is made of metal and has high strength, the weight limit of the dial ring 40 can be alleviated and the degree of freedom in designing the dial ring 40 can be improved.

[0024] The electronic timepiece 10 includes a ring-shaped antenna 200 that is positioned around the outer periphery of the dial 11, and an inner peripheral surface of the antenna 200 that houses a storage compartment 211 in which a positioning pin 80 and dial holding surface 103 are placed. Because a metal positioning pin 80 is used, the diameter of the positioning pin 80 and the area of ​​the dial holding surface 103 can be reduced, and the area of ​​the storage compartment 211 in which these are placed can also be reduced. This allows the diameter of the antenna 200 to be reduced, allowing the electronic timepiece 10 to be made more compact.

[0025] [Second embodiment] 6 is a cross-sectional view showing the main parts of an electronic timepiece 10A according to the second embodiment. In the electronic timepiece 10A, the same components as those in the electronic timepiece 10 are given the same reference numerals and will not be described again. The electronic timepiece 10A differs from the electronic timepiece 10 of the first embodiment in that it does not have an antenna 200. As a result, with the electronic timepiece 10A, there is no need to reserve space for the antenna 200 on the outer periphery of the dial ring 40 or the dial 11. This allows the distance between the outer surface of the dial 11 and the inner surface of the exterior case 30 to be reduced. Furthermore, because the gap between the inner peripheral surface of the exterior case 30 and the outer peripheral surface of the dial 11 is small, the inclination angle of the inclined portion 42A of the dial ring 40A relative to the flat portion 41A is large. A cylindrical recess 43A is formed on the underside of the dial ring 40A. The dial ring 40A is positioned by inserting a positioning pin 80 into this recess 43A.

[0026] This electronic timepiece 10A can achieve the same effects as the first embodiment. Furthermore, because it does not have an antenna 200, the gap between the outer surface of the dial 11 and the inner surface of the case 30 can be reduced, allowing the diameter of the case 30 to be reduced and the planar size of the electronic timepiece 10A to be further reduced.

[0027] [Variations] The present disclosure is not limited to the above-described embodiments, and includes modifications and improvements within the scope of achieving the object of the present disclosure. For example, the positioning pin 80 is not limited to a round bar, and as shown in Figure 7, a positioning pin 80B equipped with an axial direction restricting portion 81 may be used. The axial direction restricting portion 81 is a protruding piece that protrudes in a direction perpendicular to the axial direction of the positioning pin 80B and is capable of abutting against the upper surface of the dial 11, restricting movement of the dial 11 and solar panel 50 in the axial direction of the positioning pin 80B, i.e., toward the cover crystal 33. In addition, the dial ring 40B is formed with a recess 43B in which the axial direction restricting portion 81 can be disposed.

[0028] With an electronic timepiece 10B that uses this type of positioning pin 80B, the axial movement of the dial 11 and solar panel 50 in the axial direction of the positioning pin 80B can be restricted by the axial restriction section 81, reducing the risk of the dial 11 or solar panel 50 becoming detached. Additionally, the dial 11, solar panel 50, etc. can be prevented from becoming detached even when the dial ring 40 is removed during timepiece assembly or repair. In the electronic timepiece 10B, all of the positioning pins may be positioning pins 80B equipped with axial direction restricting portions 81, or only some may be positioning pins 80B and the rest may be positioning pins 80. Furthermore, when engaging the engagement grooves 113, 513 with the positioning pin 80B, for example, the axial direction regulating portion 81 can be facing outward, and the solar panel 50 and dial 11 can be positioned while the axial direction regulating portion 81 is passed through the engagement grooves 113, 513, and then the axial direction regulating portion 81 can be rotated so that it faces inward, or the solar panel 50 and dial 11 can be positioned before attaching the positioning pin 80B.

[0029] 8, a dial 11C may be used in which radial direction restriction portions 115 are provided on fixing protrusions 111, 112. Radial direction restriction portions 115 protrude from the ends of fixing protrusions 111, 112 in a direction in which they approach each other, and are configured so that the width dimension of the end opening of engagement groove 113C formed between fixing protrusions 111, 112 is smaller than the diameter of positioning pin 80. By using such a dial 11C, the positioning pin 80 can be prevented from coming off the end of the engagement groove 113C, thereby reducing the risk of the dial 11C moving radially and coming off the positioning pin 80. Furthermore, when the diameter of the positioning pin 80 is made larger than the dimensions of the engagement groove 113C to provide a clamping margin and fix the dial 11C to the positioning pin 80 using this clamping margin, even if the clamping margin becomes small due to manufacturing errors, the provision of the radial regulating portion 115 can prevent the dial 11C from coming off the end of the engagement groove 113C.

[0030] The positioning pin 80 is not limited to being provided on the main plate 100, and if a dial holder ring is provided that is separate from the main plate 100 and held on the main plate, and the dial is placed on this dial holder ring, the positioning pin 80 may be provided on this dial holder ring. In the above embodiment, the dials 11, 11C, solar panel 50, and dial rings 40, 40A, and 40B were positioned using the same positioning pin 80, but the positioning pin 80 for positioning the dials 11, 11C and the positioning pins for positioning the solar panel 50 and dial rings 40, 40A, and 40B may be provided separately. Furthermore, the positioning of the solar panel 50 and the dial rings 40, 40A, and 40B is not limited to using positioning pins 80 formed from a metal material, but may also be performed using a resin positioning member such as a resin dowel formed on the base plate 100, for example. Furthermore, when positioning the dial 11 etc. with positioning pins 80 at multiple locations, for example, if the opening width dimension of the engagement groove 113 is set smaller than the diameter of the positioning pin at two locations to set a clamping margin, and no clamping margin is set at other locations, metal positioning pins 80 can be placed at the locations where the clamping margin is set, and a resin positioning member can be used at the locations where no clamping margin is set.

[0031] Although the electronic timepiece 10 uses a ring-shaped antenna 200, antennas other than ring antennas may also be used. For example, a patch antenna may be provided on the back of the dial 11, 11C. In this case, the patch antenna and the metal positioning pin 80 should be positioned so that they do not overlap in a plan view. Furthermore, in a timepiece that does not have a solar panel 50, a metal positioning pin 80 may be used to position the dial 11. In this case, the dial 11 does not need to be made of a translucent material, so a metal dial 11 may be used. Furthermore, the timepiece is not limited to an electronic timepiece that drives the hands with a step motor, and may be, for example, a spring-driven timepiece.

[0032] Summary of this disclosure The timepiece disclosed herein is characterized by comprising a resin dial support member having a dial holding surface, a positioning pin formed of a metal material and positioned to protrude from the dial holding surface, and a dial that is positioned overlapping the dial holding surface and has a positioning receiver that engages with the positioning pin. The timepiece of the present disclosure uses metal positioning pins, which are stronger than when a resin positioning member is used to position the dial, allowing the pin diameter to be smaller, which in turn allows for a smaller pin diameter and therefore a smaller planar size for the electronic timepiece. Furthermore, the use of metal positioning pins alleviates the weight restrictions on the dial, which are dependent on the strength of the positioning members, allowing for greater freedom in the materials and design of the dial, including decorative elements such as indexes.

[0033] In the timepiece of the present disclosure, the dial support member is preferably the main plate or a dial support ring held by the main plate. According to the timepiece of the present disclosure, all that is required is to attach a metal positioning pin to the main plate and dial support ring that have been used conventionally, so it can be realized with a simple structure and at low cost.

[0034] In the timepiece of the present disclosure, the positioning pin is preferably made of a non-magnetic metallic material. The timepiece of the present disclosure can use a positioning pin that is less antimagnetic, which reduces the impact on internal timepiece components. For example, if an antenna is provided as a timepiece component, the impact on radio wave reception at the antenna can be reduced.

[0035] In the timepiece of the present disclosure, the non-magnetic metal material is preferably made of brass or phosphor bronze. According to the timepiece of the present disclosure, the positioning pin is formed from brass or phosphor bronze, so the positioning pin can be manufactured relatively easily and inexpensively.

[0036] The timepiece of the present disclosure preferably includes a solar panel that is disposed on the back side of the dial and has a second positioning receiving portion that engages with the positioning pin. According to the timepiece of the present disclosure, the positioning pins used to position the dial are also used to position the solar panel, so the number of positioning pins can be reduced compared to when separate positioning pins for the dial and the solar panel are provided, thereby reducing the area required for positioning.

[0037] In the timepiece of the present disclosure, it is preferable to have a dial ring that is placed on the front side of the dial and is positioned by the positioning pin. According to the timepiece of the present disclosure, the dial ring is positioned using the positioning pin that also positions the dial, preventing misalignment between the dial and the dial ring. Furthermore, because the dial ring is positioned using a metal positioning pin, restrictions on the weight of the dial ring can be relaxed, and the degree of freedom in the design of the dial ring can be increased.

[0038] In the timepiece of the present disclosure, the positioning pin preferably includes an axial direction restricting portion that restricts axial movement of the positioning pin of the dial. According to the timepiece of the present disclosure, a positioning pin equipped with an axial restriction portion is used, which prevents the dial from moving in the axial direction of the positioning pin and coming off.

[0039] In the timepiece of the present disclosure, it is preferable that the positioning support portion includes a radial direction restricting portion that restricts radial movement of the dial. According to the timepiece of the present disclosure, the dial is provided with a positioning receiver equipped with a radial direction restricting portion, which prevents the dial from moving radially relative to the positioning pin and becoming dislodged.

[0040] In the timepiece of the present disclosure, it is preferable that an antenna be provided on the outer periphery of the dial, and that the antenna be provided on its inner periphery with a storage section in which the positioning pin is disposed. In the timepiece of the present disclosure, by using a metal positioning pin, the diameter of the positioning pin can be reduced, and the storage section in which the positioning pin is placed can also be made smaller, which allows the diameter of the antenna to be reduced and the timepiece to be made more compact. [Explanation of symbols]

[0041] 10...electronic timepiece, 10A...electronic timepiece, 10B...electronic timepiece, 11...dial, 11C...dial, 16...calendar wheel, 21...hand, 22...hand, 23...hand, 30...external case, 31...case, 32...bezel, 33...cover crystal, 34...back cover, 40...dial ring, 40A...dial ring, 40B...dial ring, 41...flat plate portion, 41A...flat plate portion, 42...inclined portion, 42A...inclined portion, 43...recess, 43A...recess, 43B...recess, 50...solar panel, 60...conductive member, 80...positioning pin, 80B...positioning pin, 81...axial direction limiting portion, 100...base plate, 101...first protrusion , 102...second protrusion, 103...dial holding surface, 110...positioning receiver, 111...fixing protrusion, 112...fixing protrusion, 113...engagement groove, 113C...engagement groove, 115...radial direction regulating portion, 120...circuit board, 130...secondary battery, 140...drive mechanism, 160...first magnetic shield, 170...second magnetic shield, 200...antenna, 201...dielectric substrate, 210...main body, 211...storage portion, 220...antenna fixing portion, 240...antenna feed pin, 250...screw, 300...GPS receiving IC, 400...control IC, 510...second positioning receiver, 511...fixing protrusion, 512...fixing protrusion, 513...engagement groove.

Claims

1. a resin dial support member having a dial holding surface; a positioning pin formed of a non-magnetic metal material and protruding from the dial holding surface; a resin dial plate that is arranged at a position overlapping the dial holding surface and has a positioning receiving portion that engages with the positioning pin; an antenna having a dielectric and an antenna electrode; a solar panel disposed on the back side of the dial and having a second positioning receiving portion that engages with the positioning pin; a dial ring disposed on the front side of the dial and positioned by the positioning pin; a circuit board; The dial support member has a first protrusion and a second protrusion formed on the outer periphery of its surface, the first protrusion and the second protrusion protruding toward the surface of the timepiece. the dial holding surface is formed by the upper surfaces of the first protrusion and the second protrusion, a lower side of the positioning pin is press-fitted into a through-hole formed in the first protruding portion and the second protruding portion; A timepiece in which a conductive member that penetrates the first protrusion and connects an electrode terminal formed on the solar panel to a terminal of the circuit board is provided.

2. 2. The timepiece according to claim 1, The dial support member is a main plate or a dial support ring held on the main plate. A watch characterized by

3. In the timepiece according to claim 1 or 2, The positioning pin has an axial restriction portion that restricts the axial movement of the positioning pin of the dial. A watch characterized by

4. A timepiece according to any one of claims 1 to 3, The positioning receiving portion includes a radial direction restricting portion that restricts radial movement of the dial. A watch characterized by

5. A timepiece according to any one of claims 1 to 4, The antenna is disposed on the outer periphery of the dial, and has a storage portion on its inner periphery in which the positioning pin is disposed. A watch characterized by

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