Electronic timepiece

Abstract

To commonalize a plate for fixing a sheet-like component in multiple electronic timepiece models using each different sheet-like component.SOLUTION: An electronic timepiece includes: a plate (20 or 120); and a sheet-like component (50 or 190) that is fixed to the plate (20 or 120) by a sticking component (59 or 199) and is one of a first sheet-like component (50) and a second sheet-like component (190). The plate (20 or 120) includes: a first mark (36 or 136) showing an adhesion position of the sticking component (59) when fixing the first sheet-like component (50) to the plate (20); and a second mark (37 or 137) showing an adhesion position of the sticking component (59) when fixing the second sheet-like component (199) to the plate.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an electronic timepiece. [Background technology]

[0002] Conventionally, watches have been disclosed that are provided with marks for the attachment positions of double-sided adhesive tape for fixing parts. In Patent Document 1, the back cover of the watch case is fixed to the bottom surface of the body of the watch case with double-sided adhesive tape, and a recess is formed in the bottom surface of the body to position the double-sided adhesive tape. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 59-77094 Summary of the Invention [Problem to be solved by the invention]

[0004] Meanwhile, manufacturers develop various models of electronic watches to meet customer needs. Different models of electronic watches share common parts, and different parts may be fixed to different positions on the plate for each model. In such cases, there is a problem that manufacturing costs increase if a plate with marks indicating the fixing positions of the parts is separately produced for each model.

[0005] An object of the present invention is to make it possible to standardize the plate for fixing sheet-like components among a plurality of models of electronic timepieces in which different sheet-like components are used. [Means for solving the problem]

[0006] According to one aspect of the present invention, an electronic watch is provided, comprising: a plate; and a sheet-like component fixed to the plate by an attachment component, the sheet-like component being either a first sheet-like component or a second sheet-like component, wherein the plate has a first mark indicating the attachment position of the attachment component when the first sheet-like component is fixed to the plate, and a second mark indicating the attachment position of the attachment component when the second sheet-like component is fixed to the plate. Effect of the Invention

[0007] According to this aspect of the present invention, the plate for fixing the sheet-like components can be made common among a plurality of models of electronic timepieces in which different sheet-like components are used. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is an exploded perspective view of the inside of the first electronic timepiece. [Diagram 2] FIG. 2 is a plan view of the inside of the first electronic timepiece. [Diagram 3] FIG. 3 is a plan view of the inside of the first electronic timepiece. [Figure 4] FIG. 4 is a plan view of the inside of the first electronic timepiece. [Diagram 5] FIG. 5 is a plan view of the inside of the first electronic timepiece. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI. [Figure 7] FIG. 7 is a plan view of the inside of the first electronic timepiece whose design has been modified. [Figure 8] FIG. 8 is an exploded perspective view of the inside of the second electronic watch. [Figure 9] FIG. 9 is a plan view of the inside of the second electronic timepiece. [Figure 10] FIG. 10 is a plan view of the inside of the second electronic timepiece. [Figure 11] FIG. 11 is a cross-sectional view taken along line XI-XI. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the embodiments will be described with reference to the drawings. The features and technical effects of the embodiments will be understood from the following detailed description and drawings. However, the scope of the present invention is not limited to the embodiments disclosed below. The drawings are provided for illustrative purposes only, and therefore the scope of the present invention is not limited to the illustrations in the drawings.

[0010] In the following description, when ordinal numbers such as "first" and "second" are attached to a common name, the ordinal numbers are used for the purpose of identifying the object to which they are attached. They do not limit the object to which they are attached to a specific object, and they do not specify the order, rank, order, hierarchy, priority, or subordination of the object to which they are attached.

[0011] <1. Electronic clock set> Fig. 1 is an exploded perspective view of the inside of the first electronic watch 1. Fig. 8 is an exploded perspective view of the inside of the second electronic watch 101.

[0012] The electronic watches 1 and 101 are watches that show the time. The electronic watches 1 and 101 are sister models, and are different models. The electronic watches 1 and 101 have common parts and non-common parts. A set consisting of the electronic watches 1 and 101 is called an electronic watch set.

[0013] <2. The First Electronic Clock> The electronic watch 1 has a case in which the components of the electronic watch 1 shown in Fig. 1 are housed. The case is worn on the user's arm with an armband or arm belt. The case has a frame-shaped case body made of metal or resin, a transparent crystal made of resin or glass, and a back cover made of metal or resin. The crystal is fixed to the front of the case body so as to cover the hollow space inside the case body, and the back cover is fixed to the back of the case body so as to cover the hollow space inside the case body.

[0014] As shown in FIG. 1, the electronic timepiece 1 comprises, from back to front, a circuit board 10, a main plate 20, a spacer 40, a solar panel 50, a date indicator 60, a date indicator holder 70, and a dial 80. The electronic timepiece 1 further comprises a frame 45 and a plurality of double-sided adhesive tapes 59. These components will be described in detail below with reference to FIG. 1 to FIG. 6. Here, FIG. 2 to FIG. 5 are plan views of the inside of the case. FIG. 2 to FIG. 5 are plan views of the electronic timepiece 1 as viewed from the crystal toward the back cover. In FIG. 2, the date indicator 60, the date indicator holder 70, and the dial 80 are omitted. In FIG. 3, the solar panel 50, the date indicator 60, the date indicator holder 70, and the dial 80 are omitted. In FIG. 4 and FIG. 5, the spacer 40, the double-sided adhesive tape 59, the solar panel 50, the date indicator 60, the date indicator holder 70, and the dial 80 are omitted. In Fig. 5, the projections and recesses on the front surface of the main plate 20 are painted with various patterns to make them easier to see. The front surface of the main plate 20 refers to the surface facing the windshield. The back surface of the main plate 20 refers to the surface facing the back cover. Fig. 6 is a cross-sectional view taken along the cutting line VI shown in Fig. 2, viewed in the direction of the arrow.

[0015] (1) Circuit board The circuit board 10 has electrical components such as an antenna 11, a transceiver 12, a light-emitting element, a terminal, an IC (Integrated Circuit) chip, a secondary battery, and a terminal mounted on the circuit board 10. The antenna 11 is a wireless communication component that receives standard radio waves for time correction. The transceiver 12 is a wireless communication component that includes an antenna, a transmitter, a receiver, and a controller. The communication standard of the transceiver 12 is Bluetooth (registered trademark) Low Energy, abbreviated as BLE, Wi-Fi (registered trademark), ZigBee (registered trademark), or the like. The transceiver 12 and the antenna 11 are disposed apart from each other, so that interference between the transceiver 12 and the antenna 11 is prevented. When the positions of the antenna 11 and the transceiver 12 are expressed in clock positions, the antenna 11 is disposed at the 12 o'clock position, and the transceiver 12 is disposed at the 5 o'clock and 6 o'clock positions. Note that, instead of the transceiver 12, an antenna for wireless communication conforming to a communication standard such as BLE, Wi-Fi, or ZigBee may be mounted on the circuit board 10. The mounting position of the antenna is the same as that of the transceiver 12.

[0016] (2) Main plate The main plate 20 is placed on the front of the circuit board 10. The shape of the main plate 20 is basically a circular plate around a central axis passing through the center of the main plate 20. Hereinafter, the direction parallel to the central axis passing through the center of the main plate 20 is referred to as the axial direction, the direction along the circle around the central axis is referred to as the circumferential direction, and the direction along the diameter perpendicular to the central axis is referred to as the radial direction. The direction from the front to the back of the main plate 20 and the reverse direction are parallel to the axial direction. The thickness direction of the main plate 20 is parallel to the axial direction.

[0017] The main plate 20 has pins, protrusions, ribs, recesses, holes, notches, grooves, female threads, etc., so that components such as the multiple motors 21, multiple gear train mechanisms 23, crown 25, antenna 11, transceiver 12, solar panel 50, and spacer 40 can be easily fitted and these components can be attached, mounted, affixed, fixed, supported, held, or positioned on the main plate 20. The motor 22 of the multiple motors 21 is connected to the gear train mechanism 24 of the multiple gear train mechanisms 23, and this gear train mechanism 24 is connected to a date wheel 60, which is rotationally driven by the motor 22 and the gear train mechanism 24. The other motors 21 and the other gear train mechanisms 23 rotate hands such as a second hand, minute hand, hour hand, or function hand.

[0018] In order to place the solar panel 50 and the spacer 40 on the front surface of the main plate 20, the front surface of the main plate 20 is formed as follows.

[0019] The main plate 20 has a first protrusion 31 on the outer periphery of the front surface of the main plate 20. The first protrusion 31 is formed along the outer periphery of the front surface of the main plate 20. The first protrusion 31 is interrupted in places on the outer periphery of the front surface of the main plate 20.

[0020] The main plate 20 has a plurality of second protrusions 32 on the front surface of the main plate 20. These second protrusions 32 are formed in concentric arc shapes radially inside the first protrusions 31 and extending in the circumferential direction.

[0021] The main plate 20 has a first arrangement surface 33 on the front side of the main plate 20. The first arrangement surface 33 faces the windshield. The first arrangement surface 33 spreads in the circumferential direction between the first convex portion 31 and the second convex portion 32. A part of the first arrangement surface 33 extends from between the second convex portion 32 toward the inside in the radial direction from the second convex portion 32, and the part is called an extension portion 34a, 34b. In this embodiment, the number of the extension portions 34a, 34b is two, but it may be three or more, or it may be one. One extension portion 34a and the other extension portion 34b are arranged approximately symmetrically with respect to the center of the main plate 20. Specifically, when the range in which the extension portions 34a, 34b are formed is expressed in clock positions, one extension portion 34a is formed in the range from the 1 o'clock position to the 2 o'clock position, and the other extension portion 34b is formed at the 8 o'clock position. The height of the first arrangement surface 33 is lower than the height of the top of the first convex portion 31. Therefore, the first convex portion 31 protrudes from the first arrangement surface 33, and there is a step between the first arrangement surface 33 and the apex of the first convex portion 31. Similarly, the height of the first arrangement surface 33 is lower than the height of the apex of the second convex portion 32. Here, the height refers to the position in the axial direction.

[0022] The main plate 20 has a second arrangement surface 35 at the center of the front surface of the main plate 20. The second arrangement surface 35 faces the windshield, like the first arrangement surface 33. Therefore, the second arrangement surface 35 faces the same direction as the first arrangement surface 33. The second arrangement surface 35 spreads out radially inward of the first arrangement surface 33. The height of the second arrangement surface 35 is higher than the height of the first arrangement surface 33, and there is a step between the second arrangement surface 35 and the first arrangement surface 33. The second convex portion 32 extends in the circumferential direction at the boundary between the first arrangement surface 33 and the second arrangement surface 35. The height of the second arrangement surface 35 is lower than the height of the second convex portion 32. Therefore, the second convex portion 32 protrudes from the second arrangement surface 35, and there is a step between the second arrangement surface 35 and the top of the second convex portion 32.

[0023] The main plate 20 has a plurality of first marks 36 formed on the first arrangement surface 33. The first marks 36 indicate the positions where the double-sided adhesive tape 59 for fixing the solar panel 50 to the main plate 20 is attached. In this embodiment, the number of the first marks 36 is two, but it may be three or more, or it may be one. The position of the first marks 36 in the circumferential direction is between the extension parts 34a and 34b, and the first marks 36 and the extension parts 34a and 34b are alternately arranged in the circumferential direction. The first marks 36 are recessed recesses recessed from the first arrangement surface 33. The first marks 36 are provided in an arc shape so as to extend in the circumferential direction on the first arrangement surface 33. When the range in which the first marks 36 are formed is expressed in clock positions, the first first mark 36 is formed in the range from the 5 o'clock position to the 7 o'clock position. The second first mark 36 is formed in the range from the 9 o'clock position to the 11 o'clock position. In this way, the multiple first marks 36 are arranged in substantially opposing positions on the front of the main plate 120, so the solar panel is fixed so as not to float up. Since the first marks 36 are recesses, the height of the bottom of the recess is lower than the height of the first arrangement surface 33, and there is a step between the bottom of the recess and the first arrangement surface 33.

[0024] The main plate 20 has a plurality of L-shaped second marks 37 formed on the first arrangement surface 33. In this embodiment, the number of the second marks 37 is three, but it may be four or more, or may be two or less. When the positions of the second marks 37 are expressed in clock positions, the first second mark 37 is arranged at the 2 o'clock position, the second second mark 37 is arranged at the 7 o'clock position, and the third second mark 37 is arranged at the 9 o'clock position. These second marks 37, the antenna 11, and the transceiver 12 are arranged in the circumferential direction. The second mark 37 arranged at the 2 o'clock position is arranged between the antenna 11 and the transceiver 12 in the circumferential direction. The second marks 37 arranged at the 7 o'clock position and the 9 o'clock position are arranged between the antenna 11 and the transceiver 12 in the circumferential direction. The second marks 37 arranged at the 2 o'clock position are arranged at a position substantially opposite the second marks 37 arranged at the 7 o'clock position and the 9 o'clock position with respect to the center of the main plate 20. The second mark 37 is a recess recessed from the first arrangement surface 33. The height of the bottom of the recess is lower than the height of the first arrangement surface 33, and there is a step between the bottom of the recess and the first arrangement surface 33. The depth of the second mark 37 is unequal to the depth of the first mark 36. In other words, the depth of the second mark 37 is deeper or shallower than the depth of the first mark 36. The depth of the second mark 37 may be equal to the depth of the first mark 36. The depth of the first mark 36 refers to the distance from the first arrangement surface 33 to the bottom of the first mark 36. The depth of the second mark 37 refers to the distance from the first arrangement surface 33 to the bottom of the second mark 37.

[0025] The second mark 37 does not have to be a recess, and may be, for example, a printed ink solidified film.

[0026] The positions and shapes of the first arrangement surface 33, first convex portion 31, second convex portion 32, first arrangement surface 33, second arrangement surface 35, first mark 36 and second mark 37 as described above are designed so that the solar panel 50, spacer 40, etc. fit well and the solar panel 50 and spacer 40 are arranged on the front of the main plate 20.

[0027] (3) Double-sided adhesive tape The double-sided adhesive tape 59 is a type of attachment part such as an adhesive or a pressure sensitive adhesive. The double-sided adhesive tape 59 is also called a double-sided sticky tape. In this embodiment, the double-sided adhesive tape is used as the adhesive, but it is not limited to tape-like adhesives, and liquid or semi-hardened adhesives or sticky materials may be used. The bottom of the concave first mark 36 is a first adhesive surface to which the double-sided adhesive tape 59 is attached, and the double-sided adhesive tape 59 is attached to the bottom of the first mark 36. The double-sided adhesive tape 59 is provided in an arc shape so as to extend in the circumferential direction between the first convex portion 31 and the second convex portion 32. The thickness of the double-sided adhesive tape 59 is equal to or slightly larger than the depth of the first mark 36. The depth of the first mark 36 refers to the distance from the first arrangement surface 33 to the bottom of the first mark 36. The thickness of the double-sided adhesive tape 59 is set so that the height of the front surface of the solar panel 50 fixed by the double-sided adhesive tape 59 and the height of the front surface of the spacer 40 are equal.

[0028] (4) Frame The frame 45 is provided in a ring shape and is attached to the outer periphery of the main plate 20.

[0029] (5) Spacer The spacer 40 is provided in the form of a thin sheet. The spacer 40 is placed in the center of the front surface of the main plate 20. Specifically, the spacer 40 is placed on the second arrangement surface 35 of the main plate 20. The front surface of the spacer 40 is the surface on which a date dial holder 70, which will be described later, is placed. The spacer 40 may be fixed to the main plate 20 by adhesive, adhesive tape, or screws. The spacer 40 may have a hole into which a protrusion formed on the front surface of the main plate 20 is fitted.

[0030] (6) Solar panels The solar panel 50 is provided in the shape of a ring and a thin sheet. The solar panel 50 is placed on the first placement surface 33 of the main plate 20 around the spacer 40. The solar panel 50 is adhered to a double-sided adhesive tape 59 and fixed to the front surface of the main plate 20 by the double-sided adhesive tape 59. Since the double-sided adhesive tape 59 is adhered to the bottom of the first mark 36 that is provided in a concave shape, the thickness of the double-sided adhesive tape 59 does not cause bending deformation of the solar panel 50. The front surface of the solar panel 50 is flush with the front surface of the spacer 40, and these surfaces are flush with each other.

[0031] The solar panel 50 has one or more photovoltaic elements that receive light and generate electromotive force. The solar panel 50 is electrically connected to the circuit board 10 via contacts or the like, and the electromotive force of the solar panel 50 is supplied to the circuit board 10 or charged to a secondary battery.

[0032] The solar panel 50 has a plurality of sheet-like extensions 51a, 51b extending radially inward from its inner circumference. In this embodiment, the number of extensions 51a, 51b is two, but it may be three or more, or it may be one. One extension 51a and the other extension 51b are arranged approximately symmetrically with respect to the center of the solar panel 50 and the main plate 20. Specifically, when the positions of the extensions 51a, 51b are expressed in clock positions, the one extension 51a is arranged and formed at the 1.5 o'clock position, and the other extension 51b is arranged at the 8 o'clock position. The one extension 51a is placed on one extension 34a of the first arrangement surface 33, and the other extension 51b is placed on the other extension 34b. The one extension 51a is arranged between the two first marks 36 in the circumferential direction, and is also arranged between the two double-sided adhesive tapes 59 in the circumferential direction. The other extension portion 51b is disposed between the two first marks 36 in the circumferential direction, and is disposed between the two double-sided adhesive tapes 59 in the circumferential direction. Moreover, one of the first marks 36 and the double-sided adhesive tape 59 adhered thereto are disposed between the extension portion 51a and the extension portion 51b in the circumferential direction. The other first mark 36 and the double-sided adhesive tape 59 adhered thereto are disposed between the extension portion 51a and the extension portion 51b in the circumferential direction. The front surfaces of the extensions 51a and 51b are surfaces on which a date dial holder 70, which will be described later, is placed. Terminals may be formed on the rear surfaces of the extensions 51a and 51b. The terminals are electrically connected to terminal pads of the circuit board 10 via conductors.

[0033] Since the second mark 37 is a recess or a solidified ink film, the second mark 37 does not cause bending deformation of the solar panel 50.

[0034] 7, the solar panel 50 may be provided in an arc shape with a missing ring, such as a C-shape or a half-ring shape. In this case, an arc-shaped sheet having a color substantially similar to that of the solar panel 50 may be placed in the missing portion, and the arc-shaped solar panel 50 and the arc-shaped sheet may be combined to form a ring shape. Furthermore, in order to make the boundary between the arc-shaped solar panel 50 and the arc-shaped sheet less noticeable, a ring-shaped light diffusion sheet may be overlaid on the front of the arc-shaped solar panel 50 and the arc-shaped sheet.

[0035] (7) Niksha The date wheel 60 is disposed on the solar panel 50 in a state where it is floating above the solar panel 50. The date wheel 60 is supported by the second convex portion 32, and thus floats above the solar panel 50. Therefore, the date wheel 60 does not receive resistance from the solar panel 50 against the rotation of the date wheel 60.

[0036] The date wheel 60 is made of a metal material such as stainless steel or titanium alloy. The date wheel 60 is processed with cut letters such as mechanical cutting, pressing, etching, laser beam irradiation cutting, sandblasting, or water jet processing. The metallic luster of the date wheel 60 gives the date wheel 60 a sense of solidity and luxury. The cut lettering gives the date wheel 60 a sense of three-dimensionality and luxury.

[0037] The date wheel 60 has an inner ring 61, an outer ring 62, a plurality of spokes 63, a plurality of openings 64, a plurality of character portions 65, and an internal gear 66. The inner ring 61 is disposed inwardly away from the outer ring 62, and the inner ring 61 and the outer ring 62 are concentric. A plurality of spokes 63 are arranged at intervals in the circumferential direction between the inner ring 61 and the outer ring 62. These spokes 63 extend in the radial direction and span the inner ring 61 and the outer ring 62. An opening 64 is formed between adjacent spokes 63. The opening 64 penetrates the date wheel 60 from the front to the back. The opening 64 allows sunlight to pass through to the solar panel 50. A character portion 65 is disposed in each opening 64. The character portion 65 is connected to the inner ring 61, the outer ring 62, or the spokes 63 by a thin link. The internal gear 66 is formed on the inner circumference of the inner ring 61. The internal gear 66 meshes with the output gear of the gear train mechanism 23 .

[0038] (8) Date wheel holder The date indicator holder 70 is placed over the spacer 40. The date indicator holder 70 is provided in a disk shape. The outer periphery of the date indicator holder 70 covers the internal gear 66 of the date indicator 60 from the windshield side. The outer periphery of the date indicator holder 70 is either separated from the internal gear 66 or in soft contact with the internal gear 66. Soft contact means that the outer periphery of the date indicator holder 70 contacts the internal gear 66 to the extent that it provides almost no resistance to the rotation of the date indicator 60.

[0039] The date dial holder 70 protrudes from the spacer 40 and the edge of the second arrangement surface 35 onto the extended portions 34a, 34b. The protruding portion floats above the extended portions 34a, 34b. The protruding portion covers the extending portions 51a, 51b of the solar panel 50 from the windshield side, and holds down the extending portions 51a, 51b. As described above, the front surface of the solar panel 50 is flush with the front surface of the spacer 40, so even if the date dial holder 70 is placed over the spacer 40 and the extending portions 51a, 51b of the solar panel 50, the date dial holder 70 does not rattle.

[0040] (9) Dial The dial 80 is placed on the date indicator holder 70 and the date wheel 60. The dial 80 is supported by the date indicator holder 70, so that the dial 80 is separated from the date wheel 60 toward the windshield. The dial 80 is made of a metal material or a resin material. The dial 80 is non-transparent. The dial 80 has a plurality of openings 64 arranged in the circumferential direction radially outward from the outer periphery of the date indicator holder 70. The openings 64 penetrate the dial 80 from the front to the back. These openings 64 allow sunlight to pass through toward the date wheel 60 and the solar panel 50. The openings 64 are formed in the dial 80, so that the dial 80 appears three-dimensional. The dial 80 may be transparent. In this case, the openings 64 do not have to be formed in the dial 80.

[0041] <3. The second electronic clock> Like the electronic watch 1, the electronic watch 101 has a case made up of a case body, a crystal, and a back cover, and the components of the electronic watch 101 shown in FIG. 7 are housed in the case. The components inside the case of the electronic watch 101 will be described in detail with reference to FIGS. 7 to 10. FIGS. 8 and 9 are plan views of the inside of the case. FIGS. 8 and 9 are plan views of the electronic watch 101 when viewed from the crystal toward the back cover. In FIG. 8, the date wheel 160, the date wheel holder 170, the solar panel 150, and the dial 180 are omitted. In FIG. 9, the magnetic shield 190, the date wheel 160, the date wheel holder 170, the solar panel 150, and the dial 180 are omitted. FIG. 10 is a cross-sectional view taken along the cutting line XX shown in FIG. 9, seen in the direction of the arrow. The case of the electronic watch 101 may have the same design as the case of the electronic watch 1, or may have a different design.

[0042] The electronic timepiece 101 comprises, from back to front, a circuit board 110, a main plate 120, a magnetic shield 190, a date indicator 160, a date indicator holder 170, a solar panel 150, and a dial 180. The electronic timepiece 101 further comprises a frame 145 and a plurality of double-sided adhesive tapes 199.

[0043] (1) Circuit board, main plate and frame The circuit board 110 of the electronic watch 101 is the same as the circuit board 10 of the electronic watch 1. The main plate 120 of the electronic watch 101 is the same as the main plate 20 of the electronic watch 1. The frame 145 of the electronic watch 101 is the same as the frame 45 of the electronic watch 1. Just as the circuit board 10, main plate 20 and frame 45 are assembled together in the electronic watch 1, the circuit board 110, main plate 120 and frame 145 are also assembled together in the electronic watch 101. As in the case of the electronic watch 1, parts such as multiple motors 121, multiple gear train mechanisms 123 and a crown 125 are attached, mounted, affixed, fixed, supported, held or positioned on the main plate 120.

[0044] (2) Magnetically-shielded plate The magnetic shield 190 is in the form of a thin sheet. The planar shape of the magnetic shield 190 differs from the planar shape of the solar panel 50 of the electronic watch 1. The thickness of the magnetic shield 190 is unequal to the thickness of the solar panel 50 of the electronic watch 1. Specifically, the magnetic shield 190 is thinner than the solar panel 50 of the electronic watch 1.

[0045] The magnetic shield 190 is made of a magnetically collecting material such as cold-rolled steel or permalloy. The magnetic shield 190 is placed in the center of the front of the main plate 120. Specifically, the magnetic shield 190 is placed across the first arrangement surface 135 and the second arrangement surface 135 of the main plate 120. The magnetic shield 190 has an area larger than the area of ​​the spacer 40 of the electronic watch 1. The magnetic shield 190 protrudes from the edge of the second arrangement surface 135 onto the first arrangement surface 133. Because the height of the second arrangement surface 135 is higher than the height of the first arrangement surface 133, the magnetic shield 190 floats above the first arrangement surface 133.

[0046] The magnetic shield 190 covers the motor 121. The magnetic shield 190 magnetically shields the motor 121. The magnetic shield 190 has a horizontally long (approximately oval) shape so as not to cover the antenna 111 and transceiver 112, which are wireless communication components, and is disposed offset in the planar direction from the antenna 111 and transceiver 112. Therefore, the magnetic shield 190 does not magnetically shield the antenna 111 and transceiver 112. Here, the planar direction refers to the direction along a plane perpendicular to the axial direction.

[0047] Since the main plate 120 is the same as the main plate 20, the first arrangement surface 33, the first convex portion 131, the second convex portion 132, the first arrangement surface 133, the extension portions 134a and 134b, the second arrangement surface 135, the first mark 136, and the second mark 137 are formed on the front of the main plate 120. The positions and shapes of the first arrangement surface 133, the first convex portion 131, the second convex portion 132, the first arrangement surface 133, the second arrangement surface 135, the first mark 136, and the second mark 137 are designed so that the magnetic shield 190 and the like can be easily accommodated and the magnetic shield 190 can be arranged on the front of the main plate 120. When the positions of the second marks 137 are expressed in clock positions, the first second mark 137 is arranged at the 2 o'clock position, the second second mark 137 is arranged at the 7 o'clock position, and the third second mark 137 is arranged at the 9 o'clock position. These second marks 137, the antenna 111, and the transceiver 112 are arranged in the circumferential direction. The second mark 137 arranged at the 2 o'clock position is arranged between the antenna 111 and the transceiver 112 in the circumferential direction, and is spaced apart from the antenna 111 and the transceiver 112. The second marks 137 arranged at the 7 o'clock position and the 9 o'clock position are arranged between the antenna 111 and the transceiver 112 in the circumferential direction, and are spaced apart from the antenna 111 and the transceiver 112. The second mark 137 arranged at the 2 o'clock position is arranged at a position substantially opposite the second marks 137 arranged at the 7 o'clock position and the 9 o'clock position with respect to the center of the main plate 20. As a result of the multiple second markings 137 being arranged in generally opposing positions on the front of the main plate 120, when the magnetic shield 190 is attached to the main plate 120 with the double-sided adhesive tape 199, the attachment position of which is specified by the second markings 137, the magnetic shield 190 is fixed so that it does not float up from the main plate 120. The double-sided adhesive tape 199 is a type of attachment part such as an adhesive or a pressure-sensitive adhesive.

[0048] Some of the second protrusions 132 are fitted into holes formed in the magnetic shield 190. The second marks 137 indicate the positions where the double-sided adhesive tape 199 is attached to the main plate 120. That is, the second marks 137 are formed in an L-shape, and the area of ​​the first arrangement surface 133 adjacent to the second marks 137 (particularly, the corner of the L-shape of the second marks 137) is the second adhesive surface to which the double-sided adhesive tape 199 is attached. The corner of the double-sided adhesive tape 199 is aligned with the L-shape of the second marks 137, and the double-sided adhesive tape 199 is attached to the second adhesive surface of the first arrangement surface 133. The magnetic shield 190 is attached to the double-sided adhesive tape 199 and fixed to the front of the main plate 120 by the double-sided adhesive tape 199. The thickness of the double-sided adhesive tape 199 is equal to or slightly larger than the step between the first arrangement surface 133 and the second arrangement surface 135. The thickness of the double-sided adhesive tape 199 is set so that the height from the first arrangement surface 133 to the front of the magnetic shield 190 is equal to the height from the first arrangement surface 33 in the electronic watch 1 to the front of the solar panel 50, and is thicker than the double-sided adhesive tape 59 in the electronic watch 1. The thickness of the double-sided adhesive tape 199 may be adjusted by thickening the adhesive or cohesive layer of the double-sided adhesive tape 199, and this also applies to the double-sided adhesive tape 59. The thickness of the double-sided adhesive tape 199 may be adjusted by thickening the base material of the double-sided adhesive tape 199, and this also applies to the double-sided adhesive tape 59.

[0049] The thickness of the magnetic shield 190 is equal to the thickness of the spacer 40 of the electronic watch 1. The height from the first arrangement surface 133 to the front of the magnetic shield 190 is equal to the height from the first arrangement surface 33 to the front of the solar panel 50 in the electronic watch 1. Therefore, even if a date indicator holder 170 that is the same as the date indicator holder 70 in the electronic watch 1 is placed on the magnetic shield 190, the date indicator holder 170, solar panel 150 and dial 180 can be assembled without any rattling.

[0050] (3) Niksha The date indicator 160 is made of a metal material or a resin material. The date indicator 160 is arranged in a ring shape. The date indicator 160 is transparent or opaque. A plurality of characters are printed, punched or engraved on the date indicator 160. The characters are arranged in the circumferential direction. The date indicator 160 has an internal gear on its inner circumference. The date indicator 160 is placed on the magnetic shield 190 in a state where it is floating above the magnetic shield 190. The date indicator 160 is supported by the second convex portion 132 and thus floats above the magnetic shield 190. Therefore, the date indicator 160 does not receive resistance from the magnetic shield 190 to the rotation of the date indicator 160.

[0051] (4) Date wheel holder The date indicator holder 170 is the same as the date indicator holder 70 of the electronic timepiece 1. The date indicator holder 170 is placed on a magnetic shield 190. The outer periphery of the date indicator holder 170 covers the internal gear of the date indicator 160 and is separated from the internal gear 66 or is in soft contact with the internal gear 66.

[0052] (5) Solar panels The solar panel 150 is provided in the form of a circular, thin sheet. The solar panel 150 is overlaid on the date dial 160 and the date dial holder 170. The solar panel 150 is supported by the date dial holder 170 and is therefore suspended above the date dial 160. The solar panel 150 has an opening 152 near the outer periphery. The opening 152 is disposed at the four o'clock position. The opening 152 exposes one of the characters on the date dial 160. This character indicates the current date.

[0053] (5) Dial The dial 180 is made of a transparent or semi-transparent material. The dial 180 is provided in the shape of a circular plate. The dial 180 is overlaid on the solar panel 150.

[0054] <4. Summary> The main plate 20 of the electronic watch 1 has a first mark 36 and a second mark 37 on its front, and the main plate 120 of the electronic watch 101 has a first mark 136 and a second mark 137 on its front. When different components, i.e., the solar panel 50 and the magnetic shield 190, are attached to the main plates 20, 120, respectively, the attachment positions of the double-sided adhesive tapes 59, 159 are specified by the first mark 36 and the second mark 137, respectively. The positions at which the solar panel 50 and the magnetic shield 190 are fixed to the main plates 20, 120, respectively, are also specified by the first mark 36 and the second mark 137, respectively. Therefore, even if the main plates 20, 120 are the same, different solar panels 50 and magnetic shields 190 can be appropriately attached to the main plates 20, 120. Since the electronic timepieces 1 and 101 share the main plates 20, 120, the electronic timepieces 1 and 101 can be provided as sister products at low cost, and the product lineup can be increased at low cost.

[0055] The rear surface of the solar panel 50 is fixed to the bottom of the first mark 36 with double-sided adhesive tape 59, so that the front surface of the solar panel 50 and the front surface of the spacer 40 are aligned in height. Therefore, even if the date indicator holder 70 is placed on the spacer 40 and the extensions 51a, 51b of the solar panel 50, the date indicator holder 70 does not rattle.

[0056] Because the double-sided adhesive tape 59 is adhered to the bottom of the first mark 36, the thickness of the double-sided adhesive tape 59 does not cause bending deformation of the solar panel 50. Therefore, even if the date indicator holder 70 is placed on the solar panel 50, the date indicator holder 70 does not rattle.

[0057] The date dial holder 70 protrudes from the spacer 40 and the edge of the second arrangement surface 35 onto the extensions 34a, 34b, and the protruding portion covers the extending portions 51a, 51b of the solar panel 50 from the windshield side, pressing the extending portions 51a, 51b to the main plate 20. Therefore, the solar panel 50 is securely attached to the main plate 20. The extending portions 51a, 51b and the double-sided adhesive tape 59 are alternately arranged in the circumferential direction, so that the solar panel 50 is securely attached to the main plate 20.

[0058] The magnetic shield 190 is attached to the first arrangement surface 133 with double-sided adhesive tape 199. It is sandwiched between the second arrangement surface 135 and the back of the magnetic shield 190. The double-sided adhesive tape 199 supports the magnetic shield 190, which is floating above the first arrangement surface 133, from below, stabilizing the magnetic shield 190. The double-sided adhesive tape 199 helps prevent the magnetic shield 190 from rattling.

[0059] The thickness of the spacer 40 of the electronic watch 1 is equal to the thickness of the magnetic shield 190 of the electronic watch 101. Furthermore, the thickness of the double-sided adhesive tape 59, 199 contributes to making the height from the first mounting surface 133 to the front of the magnetic shield 190 equal to the height from the first mounting surface 33 to the front of the solar panel 50 in the electronic watch 1. Therefore, even if a date indicator holder 170 that is the same as the date indicator holder 70 in the electronic watch 1 is placed on the magnetic shield 190, the date indicator holder 170, solar panel 150 and dial 180 can be assembled without rattling.

[0060] The magnetic shield 190 protrudes from the edge of the second arrangement surface 135 onto the first arrangement surface 133, and the protruding portion covers the motor 121. The protruding portion is adhered to the first arrangement surface 133 with double-sided adhesive tape 199 in the vicinity of the motor 121. Therefore, the protruding portion effectively magnetically shields the motor 121.

[0061] As shown in Figs. 2 to 5, the extensions 51a and 51b of the solar panel 50 are pressed against the plate 20 by the date dial presser 70, so that in order for the solar panel 50 to be fixed to the plate 20 at a portion other than the extensions 51a and 51b, the double-sided adhesive tape 59 and the first mark 36 must be positioned to avoid the extensions 51a and 51b. Even if the double-sided adhesive tape 59 and the first mark 36 are not used and another double-sided adhesive tape is attached to the front surface of the plate 20 using the second mark 37 as a guide or reference, and the solar panel 50 is fixed to the plate 20 by the double-sided adhesive tape, the double-sided adhesive tape and the second mark 37 are positioned near the extensions 51a and 51b, so that the solar panel 50 is not firmly fixed to the plate 20 at a portion other than the extensions 51a and 51b. In other words, the second mark 37 cannot be used as a guide or reference for the attachment position of the double-sided adhesive tape. Therefore, in addition to the second mark 37, a first mark 36 is formed on the front surface of the plate 120 in the ranges of 5 to 7 o'clock and 9 to 11 o'clock, and double-sided adhesive tape 59 is adhered to the front surface of the plate 20 using the first mark 36 as a guide or reference, and the solar panel 50 is firmly fixed to the plate 20 by the double-sided adhesive tape 59. On the other hand, as shown in Figs. 9 and 10, the vertical size of the magnetic shield 190 is smaller than the horizontal size of the magnetic shield 190, so the magnetic shield 190 is arranged to avoid the antenna 111 and the transceiver 112, and the antenna 111 is arranged near the first mark 136 on one side, while the transceiver 112 is arranged overlapping the first mark 136 on the other side. Therefore, the magnetic shield 190 does not overlap the first mark 136, or even if the magnetic shield 190 overlaps the first mark 136, the overlapping area is small. In this case, even if another double-sided adhesive tape is attached to the first mark 136, the double-sided adhesive tape cannot fix the magnetic shield 190 to the plate 120. In other words, the first mark 136 cannot be used as a guide or reference for the attachment position of the double-sided adhesive tape. Therefore, in addition to the first mark 136, second mark 137 is formed on the front surface of plate 120 at the 2 o'clock, 7 o'clock, and 9 o'clock positions, and double-sided adhesive tape 199 is adhered to the front surface of plate 120 using second mark 137 as a guide or reference, and magnetic shield 190 is firmly fixed to plate 120 by double-sided adhesive tape 199.

[0062] Although the embodiment has been described above, the technical scope of the present invention is not limited to the above-mentioned embodiment, but is defined based on the claims. Furthermore, the technical scope of the present invention also includes equivalent ranges of modifications that are not related to the essence of the present invention from the claims. [Explanation of symbols]

[0063] 1,101 Electronic Clocks 20,120 Main plate 40 Spacer 50 Solar Panels 51a 1st extension part 51b 2nd extension part 59 Double-sided adhesive tape (attaching parts) 33,133 1st placement surface 35,135 2nd placement surface 36,136 First landmark 37,137 2nd landmark 70,170 Day Wheel Holder 60,160 days car 190 Antimagnetic board 199 Double-sided adhesive tape (attaching parts)

Claims

1. Plate and a sheet-like component fixed to the plate by an attachment component, the sheet-like component being either a first sheet-like component or a second sheet-like component; The plate is a first mark indicating an attachment position of the attachment component when the first sheet-like component is fixed to the plate; and a second mark indicating an attachment position of the attachment part when the second sheet-like part is fixed to the plate. Electronic clock.

2. the first mark is a recess provided in a concave shape in the plate, The bottom of the recess is a first adhesive surface to which the attachment component is attached.

2. The electronic watch according to claim 1,

3. the second mark is a recess formed in a concave shape on the plate or a solidified ink film printed on the plate, The area of ​​the plate adjacent to the second mark is a second adhesive surface to which the attachment component is attached.

3. The electronic watch according to claim 2.

4. 4. The electronic timepiece according to claim 3, wherein the height of the first adhesive surface is lower than the height of the second adhesive surface.

5. the first sheet-like component has a thickness greater than that of the second sheet-like component, The thickness of the attachment part when the first sheet-like part is fixed to the plate is thinner than the thickness of the attachment part when the second sheet-like part is fixed to the plate.

2. The electronic watch according to claim 1,

6. A communication component is provided which is a transceiver or an antenna, The second mark is disposed at a position spaced apart from the position at which the communication component is disposed.

2. The electronic watch according to claim 1,

7. the second sheet-like part is a magnetic shield, The magnetic shield is fixed to the plate by the attachment part so as not to cover the communication part.

7. The electronic watch according to claim 6.

8. Any one of the plurality of second marks is disposed at a position substantially opposite any other one of the plurality of second marks.

8. The electronic watch according to claim 1, wherein the electronic watch comprises:

9. The first sheet-like component is an annular solar panel.

8. The electronic watch according to claim 1, wherein the electronic watch comprises:

10. The first sheet-like part is an annular region; a first extending portion and a second extending portion extending from the annular region, pressed against the plate by a presser, and spaced apart from each other; Equipped with The first mark is disposed at a position spaced apart from the first extension portion and the second extension portion.

8. The electronic watch according to claim 1, wherein the electronic watch comprises:

11. Any one of the plurality of first marks is disposed at a position substantially opposite any other one of the plurality of first marks.

8. The electronic watch according to claim 1, wherein the electronic watch comprises:

12. A presser is placed on the spacer and the first sheet-like component that are overlapped on the plate; The surface of the spacer on which the presser is placed is flush with the surface of the first sheet on which the presser is placed.

8. The electronic watch according to claim 1, wherein the electronic watch comprises:

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