Watch, watch case, and watch manufacturing method

Abstract

To provide a watch and a watch case that can prevent a reduction in appearance due to an adhesive, while accurately fixing a crystal.SOLUTION: A watch comprises: a housing (5) opened at a first end; a crystal (6) located at the first end; a parting plate (8) located inside the housing; and an adhesive (7) joining the housing and the crystal to each other. The housing has a protrusion (51) protruding inward from an inner peripheral surface (5a) and extending in a circumferential direction, and a plurality of projections (52) projecting inward from the inner peripheral surface to define the position of the crystal. The crystal is joined to the inner peripheral surface on its side face and joined to a top face of the protrusion on the periphery of its lower face, with the adhesive therebetween. An outer peripheral surface of the parting plate extends along an inner surface of the protrusion. In an opposing portion between the protrusion and the parting plate along the crystal, a gap in a partial area including the positions of the projections is larger than a gap in a portion other than the partial area.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] This invention is a clock 、 watch case and a method for manufacturing a watch Regarding. [Background technology]

[0002] In watches, especially portable watches that require waterproofing and dustproofing, the driving unit, time display unit, etc. are housed in a housing (case), and a transparent crystal glass located on the top or front is bonded to the housing so that the contents displayed by the display unit can be seen from the outside. Some watches are bonded using adhesives.

[0003] The adhesive used for bonding is usually used in a position that cannot be seen from the outside. However, the adhesive has fluidity before bonding and spreads somewhat from the bonding surface when crimped and fixed. If this spread becomes too large and spills into a position visible to the user, the appearance will be deteriorated. In response to this, Patent Document 1 discloses a technology that prevents unnecessary leakage of the adhesive outside the bonding surface by providing a space where the adhesive can remain at the bonding surface between the case and the crystal glass. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 58-37586 Summary of the Invention [Problem to be solved by the invention]

[0005] However, simply creating a gap between the side of the windshield and the case in which adhesive can accumulate poses the problem that the position of the windshield relative to the case cannot be determined, resulting in variations in position and an unattractive appearance.

[0006] The object of this invention is to provide a watch that can accurately fix the crystal while preventing the deterioration of the appearance caused by adhesive. 、watch case and a method for manufacturing a watch The purpose is to provide [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides a support member having an open first end; a light-transmitting member located at the first end; The aforementioned Support member and an adhesive that bonds the light-transmitting member to the light-transmitting member; Equipped with The aforementioned Support member teeth, The relevant Support member a protruding portion protruding inward from the inner peripheral surface of the bearing and extending in the circumferential direction; A protrusion is provided inward from the inner peripheral surface. was A protrusion; and The light-transmitting member is a side surface of the light-transmitting member and the inner peripheral surface are joined via the adhesive, or a peripheral edge of the lower surface of the light-transmitting member and an upper surface of the protrusion are joined via the adhesive, The optically transparent member and the protrusion facing portion or the functional component disposed inside the support member and the protrusion facing portion are There is a gap, the gap in a partial region of the facing portion that includes the position of the protrusion Volume of is the gap in the portion other than the partial region of the facing portion. Volume of Greater than This is a watch characterized by the above. [Effects of the Invention]

[0008] According to the present invention, it is possible to accurately fix the crystal while preventing the adhesive from detracting from the appearance of the timepiece. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a diagram showing the top surface of the timepiece of the present embodiment. [Figure 2] FIG. 2 is a diagram showing a cross section of a part of a timepiece. [Figure 3] FIG. 10 is a diagram illustrating a cutout position. [Figure 4] FIG. 10 is a diagram illustrating the side view of the parting plate from the side of the slit. [Figure 5] FIG. 10 is a cross-sectional view of a cross section including a protrusion. [Figure 6] FIG. 10 is a cross-sectional view showing a modified example of the timepiece of the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the top surface of a timepiece 1 according to this embodiment. Timepiece 1 is not particularly limited, but may be, for example, a wristwatch that displays time using hands 2. Timepiece 1 comprises a housing 5 (watch case), a crystal 6 (not shown) (see FIG. 2), hands 2 that rotate below crystal 6 to display the time, etc., a dial 3 located below hands 2 and having scales and the like (not shown), and a bezel 8 located on dial 3 in a substantially circular shape around hands 2 along inner peripheral surface 5a of housing 5. Crystal 6 is a member that transmits light (light-transmitting member), and dial 3, hands 2, and bezel 8 can be seen from the outside through crystal 6.

[0011] The housing 5 houses various components (functional parts) inside, such as the control unit of the timepiece 1, the display unit including the above-mentioned hands 2, dial 3, and viewfinder 8, and the battery. The housing 5 has a tubular shape, in this case a roughly cylindrical shape, with the top and bottom open. The material of the housing 5 is not particularly limited, but is a material that can be appropriately bonded with adhesive 7, which will be described later, and in this case, is, for example, various resins. The crystal 6 is positioned so as to cover one end (first end) of the open top side of the housing. The various components located within the housing 5 include a pointer 2. The side of the housing 5 opposite to the first end (one end on the bottom side) may also be open, and this end may be sealed by a back cover or the like (not shown).

[0012] FIG. 2 is a diagram showing a part of a cross section of the timepiece 1. The housing 5 has a groove 51a on the upper surface of the protrusion 51. The windshield glass 6 is supported and fixed by the upper surface of the protrusion 51.

[0013] The windshield 6 has a ring-shaped thin film 61 (thin film layer) along the periphery of its lower surface. This thin film 61 is a colored (e.g., silver) light-impermeable film, and is formed, for example, by printing on the windshield 6. This thin film 61 is a privacy film, and the adhesive 7 and the structure of the housing 5, which are located further below this thin film 61, are shielded by the thin film 61 and cannot be seen from above.

[0014] The adhesive 7 bonds the thin film 61 (i.e., the periphery of the lower surface) of the windshield 6 to the upper surface of the protrusion and bonds the side surface to the inner peripheral surface 5a above the protrusion 51. The adhesive 7 is applied to the groove 51a, and the adhesive 7 on the protrusion 51 mainly remains within the groove 51a. There is also a gap between the side surface of the windshield 6 and the inner peripheral surface 5a, and the adhesive 7 penetrates and remains in this gap. In other words, the presence of these grooves 51a and gaps prevents the adhesive 7 from significantly protruding from the bonding surface when pressed and heated. The adhesive 7 does not necessarily fill the entire gap, as long as it is distributed to an extent that provides the necessary bonding strength and the necessary waterproof and dustproof properties. The adhesive 7 is not particularly limited, but may be, for example, a thermosetting adhesive. Some thermosetting adhesives expand slightly (e.g., by a few percent) when heated and hardened. The adhesive 7 does not need to be colorless and transparent; it may be colored (including white). In this way, the side of the windshield glass 6 is bonded to the inner surface 5a of the housing 5 via adhesive 7, and the peripheral edge of its lower surface is bonded to the upper surface of the protrusion 51 via adhesive 7.

[0015] The lower edge of the side of the windshield 6 is chamfered so that, when joined, the adhesive 7 can easily spread across the bottom and side of the windshield 6. This chamfering may be at an angle greater than 45 degrees (an angle at which the chamfered surface 6a rises more sharply from the bottom surface).

[0016] The outer peripheral surface 8a of the viewfinder 8 faces the tip side side (inner surface) of the protrusion 51 (facing portion). This facing portion has a gap along the windshield 6. The inner edge of the thin film 61 of the windshield 6 extends further inward than the outer edge of the viewfinder 8. There may be a small gap between the top surface of the viewfinder 8 and the windshield 6.

[0017] FIG. 3 is a diagram illustrating the position of the notch. As shown in Figure 3(a), the housing 5 has multiple protrusions 52 protruding from the inner peripheral surface 5a along the inner peripheral surface 5a (here, at four locations spaced 90 degrees apart). A circle passing through the tip positions of the protrusions 52 is approximately the same size as the outer edge of the windshield 6 (actually, it is slightly larger), thereby defining the position of the windshield 6 relative to the housing 5 (inner peripheral surface 5a). In other words, it is sufficient that the protrusions 52 are located at three or more locations, each separated by an angle of less than 180 degrees, so that this circle can be defined.

[0018] As described above, the distance from the center position of the housing 5 in a plan view to the inner peripheral surface 5a is very narrow in parts in a cross section including this protrusion 52. Therefore, when the windshield 6 and the housing 5 are joined, the adhesive 7 is extruded from this narrow portion and spreads outward in response to expansion due to heating, as described above. In particular, on the bottom side of the windshield 6, inside the groove 51a, the gap between the windshield 6 and the protrusion 51 and the parting panel 8 is very small, so the width of the adhesive 7 spreading inward is likely to be large compared to the volume of the extruded adhesive 7. If the adhesive 7 spreads inside the thin film 61, the adhesive 7 will be visible from the outside, which will detract from the appearance.

[0019] 3(b) has a C-shape with a slit 81 in one direction, but it may also be a continuous ring. Although not particularly limited, the parting plate 8 here is made of resin.

[0020] The parting plate 8 has cutout portions 82 to 86 (cutouts). The cutout portions 82 and 83 are located on both sides of the slit 81. The cutout portions 84 to 86 are located at 90-degree intervals, including the cutout portion 83. The angular range of these cutout portions 83 to 86 includes the position (angular direction) of the protrusion 52 in a plan view. The width of each of the cutout portions 83 to 86 in the angular direction (direction along the inner circumferential surface 5a) is wider than the width of the protrusion 52 in the angular direction. In addition, the volume (capacity) of each of the cutout portions 83 to 86 cut out of the cylindrical parting plate 8 is larger than the volume of each of the protrusions 52.

[0021] These cutouts do not necessarily have to be intentionally added to match the protrusions 52, and may be ones that are / have been used for other purposes. For example, the parting panel 8 is typically obtained by injection molding, in which resin is poured into a mold and solidified. Surfaces including the cut marks of the gates, which are the resin flow paths at this time, may be designated as cutouts 84, 86, etc. Furthermore, when the parting panel 8 has a cut 81, both sides of the cut 81 may be connected by a connecting path (bridge) during injection molding. Therefore, surfaces including the cut marks of this bridge and adjacent to the cut 81 (positions corresponding to the cut 81, where "corresponding" refers to the distance from the cut 81, etc., determined depending on the manufacturing method of the parting panel 8, etc.) may be designated as cutouts 82, 83. The shapes of the gates and bridges may be appropriately determined as needed. Furthermore, the positions of the cutouts 82, 83 related to the bridges do not necessarily have to be adjacent to the cut 81 and located on both sides. They may be spaced apart from the cut 81.

[0022] FIG. 4 is a diagram illustrating the side view of the parting plate 8 from the side of the slit 81. As shown in FIG. Cut marks 87 may remain in the cutout portions 82 and 83 located on both sides of the slit 81 where the bridge has been cut. The cut marks 87 are not limited to those that protrude from the cutout surfaces of the cutout portions 82 and 83 or to those that have a rough surface. The cross-sectional shape and size of the bridge may be any desired shape.

[0023] The positional relationship of the gate and bridge is determined by the direction of the necessary slits 81. Therefore, if the positions of the notches do not match the positions of the protrusions 52 or if there are not enough of them, separate notches 85 or the like may be formed.

[0024] FIG. 5 shows a cross-sectional view taken along the line AA in FIG. 3(a) and a cross-sectional view taken along the line BB in FIG.

[0025] The cross-sectional view taken along the cross-sectional line AA in FIG. 5( a) includes the protrusion 52 and the cutout 84 having the separation trace at the gate position as described above. The portion (cutout surface) of the outer peripheral surface 8a of the parting plate 8 facing the inner peripheral surface 5a thereof, which corresponds to the cutout 84, may be flat (straight in plan view). Accordingly, in the cross-section including the cutout 84, a gap corresponding to the height of the outer periphery of the parting plate 8 is formed between the inner surface of the protrusion 51 and the outer peripheral surface 8a thereof. The cross-section including the cutout 86 may have the same structure. Furthermore, the cross-section including the cutout 82 corresponding to the bridge trace may also have the same structure. In other words, it is not necessary to distinguish between the gate trace and the bridge trace. Because the angle difference between the cutout 83 and the cutout 82 is small, the parting plate 8 does not have the protrusion 52 in the direction corresponding to the cutout 83, but may have the protrusion 52 in the direction corresponding to the cutout 83.

[0026] The cross-sectional view taken along line BB in Figure 5(b) shows protrusion 52 and notch 85, which does not have a gate cut mark as described above. This notch 85 has a cross-sectional shape different from that of notch 84, although it is not particularly limited thereto. Here, the viewer panel 8 is not completely cut out in the vertical direction, but only a portion near the top surface is cut out. Even with this shape, it is sufficient that the notch has a volume large enough to accommodate adhesive 7 extending toward the center along the underside of windshield glass 6.

[0027] In this way, cutouts 82-86 make the gap in a partial area along the underside of the windshield 6, in the opposing portion of the inner surface of protrusion 51 and viewfinder 8, which is a range in a plan view (angular direction) including protrusion 52, wider than the gap in the rest of the partial area. By providing such a wide gap in a narrow angular range between the inner circumferential surface 5a and the windshield 6 due to protrusion 52, adhesive 7 that is pushed out of the narrow gap and spreads particularly toward the center of the windshield 6 remains in this gap, preventing it from spreading further toward the center. This prevents the adhesive 7 from spreading further inward than the thin film 61 and becoming visible from the outside.

[0028] [Variations] FIG. 6 is a cross-sectional view showing a modified example of the timepiece 1 of this embodiment. This cross section includes the same protrusion 52 as the cross section shown in FIG. 5(b), and the same parts are given the same reference numerals and their explanations are omitted.

[0029] In this modified example, the viewer panel 8 does not have a notch in the same cross section as the protrusion 52, but instead has a notch 511 in the protrusion 51 of the housing 5, the protrusion width of which is narrower in part than in the remaining part (other parts). As long as the gap between the viewer panel 8 and the protrusion 51 along the windshield 6 is partially widened, the notch that forms the gap may be located in either the viewer panel 8 or the protrusion 51.

[0030] Here, the notch 511 is located only in a portion further inward than the inner edge 51b of the groove 51a, but the edge 51b may be narrowed, or the edge 51b may be absent locally.

[0031] As described above, the timepiece 1 of this embodiment comprises a case 5 with one open end (first end) on the top side, a crystal 6 located at the first end and which is a light-transmitting member, a viewfinder 8 which is a functional component located inside the case 5, and adhesive 7 which bonds the case 5 to the crystal 6. The case 5 has a protrusion 51 which protrudes inward from its inner peripheral surface 5a and extends in the circumferential direction, and a plurality of protrusions 52 which protrude inward from the inner peripheral surface 5a and determine the position of the crystal 6 relative to the inner peripheral surface 5a. The side of the crystal 6 is bonded to the inner peripheral surface 5a via adhesive 7, and the periphery of its underside is bonded to the upper surface of protrusion 51 via adhesive 7, and the outer peripheral surface 8a of viewfinder 8 extends along the inner surface of protrusion 51. There is a gap between the protrusion 51 and the viewfinder 8 facing each other along the windshield 6, and the gap in the area formed by the cutouts 83-86, which is a part of the area including the position of the protrusion 52, is wider than the gap in the areas other than the area formed by the cutouts 83-86. By providing a gap in this manner to match the protrusion 52, the watch 1 can reliably align the crystal 6 while preventing the adhesive 7 from spilling out into unnecessary areas, thereby minimizing deterioration in appearance.

[0032] Also, some of the gaps associated with the cutouts 83 to 86 are due to the parting plate 8. Whether the adhesive 7 spreads to the inside of the thin film 61 depends on the position and shape of the parting plate 8 (functional component), so by adjusting the gaps on the parting plate 8 side, it is possible to reduce the number of patterns of shapes that correspond to the product of the housing 5.

[0033] Furthermore, the width of the cutouts 82 to 86 in the direction along the inner circumferential surface 5a is wider than the width of the protrusion 52 in the direction along the inner circumferential surface 5a. This makes it easier to guide the adhesive 7 to spread in the circumferential direction during bonding, and also allows the thickness of the cutouts 82 to 86 to be kept small, minimizing the effect on the size of the display screen of the timepiece 1.

[0034] Furthermore, the volume of each of the cutout portions of the cutout portions 83 to 86 is larger than the volume of the corresponding protrusions 52. As a result, even if all of the adhesive 7 pushed out by the amount of the protrusions 52 flows into the cutout portions 83 to 86, it will not overflow, and therefore the spread of the adhesive 7 toward the inside of the thin film 61 can be more reliably prevented.

[0035] Furthermore, the surfaces of the cutout portions 83 to 86 of the parting plate 8 are made of resin, and at least a portion of the surface of the cutout portions 83 to 86 has cut marks 87. In other words, not all of the cutout portions 83 to 86 need to be formed for the purpose of storing adhesive 7. The portions of cutouts created for purposes such as gates or bridges, after the gates or bridges have been cut off, may be reused and used as places for efficiently storing adhesive 7.

[0036] Furthermore, parting plate 8 may have a slit 81 in a direction along its tip-side side surface (inner surface), and may have, for example, adjacent cutouts 82 and 83 at a position corresponding to slit 81. That is, parting plate 8 does not necessarily have to be annular, depending on the function of parting plate 8 and the positional relationship with other components. Furthermore, the position of slit 81 itself may correspond to the position of protrusion 52, but if another component is located at the position of slit 81, it is possible to use the positions of the adjacent cutouts 82 and 83, mainly the position where the bridge is cut out.

[0037] Additionally, the windshield 6 has a ring-shaped thin film 61 on the surface where it joins with the upper surface of the protrusion 51, and adhesive 7 joins the thin film 61 to the upper surface of the protrusion 51. By joining the thin film 61 with adhesive 7 in this way, the adhesive 7 is not directly attached to the underside of the windshield 6, so the adhesive 7 does not interfere with the display surface of the hands 2 and the like that are visible through the windshield 6. Furthermore, the adhesive 7 can be hidden by the thin film 61, improving the appearance.

[0038] In particular, when the adhesive 7 is colored so that it is easily visible from the top surface side, by preventing the adhesive 7 from spreading to the inside of the thin film 61, it is possible to appropriately prevent deterioration in appearance.

[0039] Furthermore, protrusion 52 is located between protrusion 51 and the first end. This allows windshield 6 to be stably supported, and also allows adhesive 7 extruded from the area between inner circumferential surface 5a and windshield 6 to flow appropriately into the gap between protrusion 51 and outer circumferential surface 8a and be retained therein.

[0040] The watch case of this embodiment also includes a housing 5 with an open first end (top end). Housing 5 has a protrusion 51 that protrudes inward from the inner circumferential surface 5a of housing 5 and extends circumferentially, with the crystal 6 covering the first end positioned on its top surface, and a plurality of protrusions 52 that protrude inward from inner circumferential surface 5a and determine the position of crystal 6 relative to inner circumferential surface 5a. Of the portion of protrusion 51 facing crystal 6, at least a portion (cutout portion 511) that includes the position of protrusion 52 is narrower than the remaining portion. In this way, the housing 5 may have the cutout 511, which makes it possible to prevent the adhesive 7 from spreading inward along the underside of the windshield 6 when the windshield 6 is bonded with the adhesive 7. This prevents the adhesive 7 from being visible from the top side through the windshield 6, thereby preventing a deterioration in appearance.

[0041] The present invention is not limited to the above-described embodiment, and various modifications are possible. For example, in the above embodiment, the protrusions 52 and the cutouts 83 to 86 are described as corresponding one-to-one, but if there are portions where the protrusions 52 are closely spaced apart, a single cutout may include multiple protrusions 52. In this case, it is preferable that the volume of the cutout be larger than the sum of the volumes of the multiple protrusions 52.

[0042] In the above embodiment, the cutouts 82 to 86, which are marks left when gates, bridges, etc. are cut off from the resin parting plate 8, are used as gaps for ink reservoirs. However, all of these may be gaps created by dedicated cutouts. In particular, in the case of functional parts such as the parting plate 8, which is made of metal instead of resin, no such separation marks are left, so all of these may be provided separately and exclusively.

[0043] The number and spacing of the cutouts 82 to 86 may be determined arbitrarily as long as it is possible to define the position of the windshield 6. The cutouts 82 to 86 may each have a different shape or size.

[0044] Furthermore, the cutout surfaces of the cutout portions 82 to 86 do not have to be flat in plan view, but may be concave or convex curved surfaces.

[0045] Furthermore, since not all of the adhesive 7 extruded from the protrusion 52 flows into the cutouts 82-86, the volume of each of the cutouts 82-86 does not necessarily have to be larger than the volume of the protrusion 52. Conversely, as long as the required volume is obtained, the cutouts may have a circumferential width narrower than the width of the protrusion 52.

[0046] The color of adhesive 7 is not particularly limited and may be colorless and transparent. The surface of thin film 61 that is bonded to windshield glass 6 may be any color appropriate to the design of how it will appear from above. Adhesive 7 does not have to be thermosetting, nor does it have to expand when thermoset.

[0047] Furthermore, while the above embodiment has been described as a watch that displays time using hands 2, it may also be a watch with a digital display screen. Furthermore, watch 1 is not limited to an electronic watch. It may also be a mechanical watch that uses a mainspring or the like. Furthermore, watch 1 does not have to be a product dedicated to displaying time. It may have basic functions such as a stopwatch or alarm, and may also be a multi-function product (including a smartwatch) that has physical sensors for measuring atmospheric pressure, geomagnetic field, temperature, acceleration, optical parameters, etc., and is capable of measuring and displaying temperature, direction, altitude, weather fluctuations, usage status, user activity status, pulse rate, SpO2, etc. Furthermore, it may also be capable of acquiring various information from an external device via a communication unit and displaying or announcing information. Furthermore, watch 1 is not limited to a wristwatch worn on the wrist. It may also be a watch worn on another part of the body, or a pocket watch that is carried around in a pocket, etc.

[0048] Furthermore, the open edge of the case 5 and the outer shape of the crystal 6 do not have to be circular. They may be oval, or polygonal with rounded or rounded corners. The outer shape of the crystal 6 and the outer shape of the viewfinder 8 may be different shapes. In particular, in the case of a watch 1 with a digital display screen, the shape of the viewfinder 8 may correspond to the digital display screen.

[0049] In addition, in the above embodiment, the parting plate 8 has been described as an example of a functional part, but this is not limiting. When the dial 3 is in direct contact with the protruding portion 51 of the housing 5, the dial 3 may be a functional part, or may be a part used for other purposes. In addition, the specific configurations, contents and procedures of the processing operations, etc. shown in the above embodiments can be modified as appropriate within the scope of the invention.

[0050] Although several embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and its equivalents. The inventions described in the claims originally attached to this application are as follows. The claim numbers described in the appendix are the same as those of the claims originally attached to this application.

[0051] [Note] <Claim 1> a housing having an open first end; a light-transmitting member located at the first end; a functional component located inside the housing; an adhesive that bonds the housing and the light-transmitting member; Equipped with The housing includes: a protrusion that protrudes inward from an inner peripheral surface of the housing and extends in a circumferential direction; a plurality of protrusions provided to protrude inward from the inner circumferential surface and defining a position of the light transmitting member relative to the inner circumferential surface; and the light-transmitting member has a side surface joined to the inner peripheral surface via the adhesive, and a peripheral edge of a lower surface of the light-transmitting member joined to an upper surface of the protruding portion via the adhesive, the functional component has an outer circumferential surface extending along the inner circumferential surface of the protrusion, a gap is formed between the protrusion and the functional component at an opposing portion along the light-transmitting member; The gap in a partial region of the facing portion including the position of the protrusion is wider than the gap in a portion of the facing portion other than the partial region. A watch characterized by <Claim 2> 2. The timepiece according to claim 1, wherein the gap in the partial area is caused by a cutout in the functional component. <Claim 3> The timepiece according to claim 2, characterized in that the width of the notch in the direction along the inner circumferential surface is wider than the width of the protrusion in the direction along the inner circumferential surface. <Claim 4> 4. The timepiece according to claim 1, wherein the volume of each of the gaps is greater than the volume of the corresponding protrusion. <Claim 5> a surface of the notch of the functional component is made of resin; At least a part of the surface of the notch has a separation mark. 4. The timepiece according to claim 2 or 3. <Claim 6> The timepiece according to any one of claims 2, 3 and 5, characterized in that the functional component has a slit extending in a direction along the inner surface, and the notch is located at a position corresponding to the slit. <Claim 7> A watch as described in any one of claims 1 to 6, characterized in that the light-transmitting member has a thin film layer along the bonding surface with the upper surface of the protrusion, and the adhesive bonds the thin film layer to the upper surface of the protrusion. <Claim 8> The watch according to any one of claims 1 to 7, wherein the adhesive is colored. <Claim 9> 9. The timepiece according to any one of claims 1 to 8, wherein the protrusion is located between the protruding portion and the first end. <Claim 10> a housing having an open first end; The housing includes: a protrusion that protrudes inward from an inner peripheral surface of the housing, extends in a circumferential direction, and has an upper surface on which a light-transmitting member that covers the first end is disposed; a plurality of protrusions provided to protrude inward from the inner circumferential surface and defining a position of the light transmitting member relative to the inner circumferential surface; and A portion of the opposing portion of the protrusion along the light-transmitting member, the portion including the position of the protrusion, is narrower than the remaining portion. A watch case characterized by: [Explanation of symbols]

[0052] 1. Clock 2 Guidelines 3 Dial 5. Cabinet 5a Inner surface 51 Protrusion 51a Groove 51b Edge 511 Notch 52 Protrusion 6 Windshield 6a Chamfered surface 61 Thin Film 7. Adhesive 8. Clearance board 8a Outer surface 81 Break 82~86 Notch 83 Cutout 87 Cut marks

Claims

1. A support member having an open first end; a light-transmitting member located at the first end; an adhesive that bonds the support member and the light-transmitting member; Equipped with The support member is a protrusion that protrudes inward from an inner peripheral surface of the support member and extends in a circumferential direction; a protrusion provided so as to protrude inward from the inner circumferential surface; and the side surface of the light-transmitting member and the inner peripheral surface are joined via the adhesive, or the peripheral edge of the lower surface of the light-transmitting member and the upper surface of the protrusion are joined via the adhesive, a gap is provided between the optically transparent member and the protruding portion or between the functional component disposed inside the support member and the protruding portion; The volume of the gap in a partial region of the facing portion including the position of the protrusion is larger than the volume of the gap in a portion of the facing portion other than the partial region. clock.

2. A watch as described in Claim 1, characterized in that the gap in the certain area is caused by a notch in the protrusion.

3. 3. The timepiece according to claim 1, wherein the volume of each of the gaps is greater than the volume of the corresponding protrusion.

4. The timepiece described in any one of claims 1 to 3, characterized in that the light-transmitting member has a thin film layer along the bonding surface with the upper surface of the protrusion, and the adhesive bonds the thin film layer to the upper surface of the protrusion.

5. The watch according to any one of claims 1 to 4, wherein the adhesive is colored.

6. The timepiece according to any one of claims 1 to 5, wherein the protrusion is located between the protruding portion and the first end.

7. A watch described in any one of claims 1 to 6, wherein the lower end of the side of the light-transmitting member has a chamfered portion.

8. A support member having an open first end, The support member is a protrusion that protrudes inward from an inner peripheral surface of the support member, extends in a circumferential direction, and has an upper surface on which a light-transmitting member that covers the first end is disposed; a plurality of protrusions provided so as to protrude inward from the inner circumferential surface, a gap is provided between the optically transparent member and the protruding portion or between the functional component disposed inside the support member and the protruding portion; a volume of the gap in a partial region of the facing portion including the position of the protrusion is larger than a volume of the gap in a portion of the facing portion other than the partial region; A watch case characterized by:

9. A method for manufacturing a support member, the method comprising: a first step of placing a light-transmitting member at a first end of the support member whose first end is released; and bonding, via adhesive, between a side surface of the light-transmitting member and a protrusion that protrudes inward from the inner peripheral surface of the support member and extends circumferentially, or between the peripheral edge of the lower surface of the light-transmitting member and the upper surface of the protrusion; a gap is provided between the optically transparent member and the protruding portion or between the functional component disposed inside the support member and the protruding portion; a volume of the gap in a partial region of the opposing portion including a position of a protrusion formed to protrude inward from the inner circumferential surface of the support member is larger than a volume of the gap in a portion other than the partial region of the opposing portion; A method for manufacturing a watch.

10. A method for manufacturing a watch as described in Claim 9, characterized in that the first step includes a step of determining the position of the light-transmitting member relative to the inner surface by the protrusion portion.

11. A method for manufacturing a watch as described in claim 9 or 10, characterized in that it includes a step of forming a gap in the partial area by cutting out the protrusion or the functional component before the first step.

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