JP2009002767A - Glass fitting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass fitting structure capable of preventing an adhesive from oozing to the outside, and improving appearance or design of the whole equipment. <P>SOLUTION: The upper surface of a wrist watch case 1 on which a watch glass 2 is arranged is formed as a flat surface successive to right-and-left both sides, and the adhesive 10 is applied onto the upper surface of the wrist watch case 1, and an interception groove 11 is provided on the outer peripheral side of an application domain E of the adhesive 10 on the upper surface of the wrist watch case 1. Consequently, the watch glass 2 can be fitted on the upper surface of the wrist watch case 1 in the state where both side ends 2a of the watch glass 2 are exposed to the external side direction from both side ends 1a of the wrist watch case 1. In this case, even if the adhesive 10 oozes to the outer peripheral side of the wrist watch case 1, outflow of the adhesive 10 to the outside of the wrist watch case 1 can be intercepted by the interception groove 11. Hereby, oozing of the adhesive 10 to the outside can be prevented, and the appearance or the design of the whole wrist watch can be improved. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a glass mounting structure used for electronic devices such as watches.

Conventionally, in a wristwatch, as described in Patent Document 1, when a watch glass is attached to a watch case, an attachment step portion along the outer periphery of the watch glass is provided on the outer periphery portion of the watch case. An adhesive is applied to the peripheral surface and a watch glass is fitted and adhered. In such a glass mounting structure, since the outer peripheral surface of the watch glass is pressed by the inner peripheral surface of the mounting step portion of the watch case, the watch glass can be securely attached to the watch case.
JP 06-94848

  However, in such a conventional glass mounting structure, it is necessary to provide a mounting step portion for pressing the outer peripheral surface of the glass on the outer peripheral portion of the watch case, and this restricts the appearance and design of the watch case. At the same time, the shape of the watch glass is also restricted, and there is a problem that the appearance and design of the entire wristwatch cannot be sufficiently improved.

  Moreover, in such a conventional glass mounting structure, since the watch glass is fitted by applying an adhesive to the inner peripheral surface of the watch case mounting step, the adhesive is attached to the end of the watch glass and the mounting step. There is also a problem that the appearance and design of the entire wristwatch are damaged by the protruding adhesive.

  The problem to be solved by the present invention is to provide a glass mounting structure capable of preventing the adhesive from protruding to the outside and improving the appearance and design of the entire device.

In order to solve the above problems, the present invention includes the following components.
According to the first aspect of the present invention, there is provided a glass having a flat bottom surface and an opening provided on the top surface on which the glass is disposed, and the top surface is formed on a flat surface continuous to at least both side edges. A case in which at least both side edges of the glass are exposed; an adhesive applied to the upper surface of the case along the inner periphery of the opening; and an outer peripheral side of the adhesive application region on the upper surface of the case And a damming groove provided on the glass.

  According to a second aspect of the present invention, an adhesive reservoir portion that is continuous with the damming groove is provided at a location corresponding to the application start position and the application end position of the adhesive on the upper surface of the case. The glass mounting structure according to claim 1.

  The glass according to claim 1 or 2, wherein an auxiliary damming groove is provided on an inner peripheral side of the adhesive application region on the upper surface of the case. It is a mounting structure.

  The invention described in claim 4 is characterized in that a decorative layer is provided on the lower surface of the glass to cover at least a region extending from the outer peripheral side of the damming groove to the inner peripheral side of the auxiliary damming groove. It is a glass attachment structure in any one of Claims 1-3.

  The invention according to claim 5 is characterized in that the glass is formed in such a size that an outer peripheral end portion thereof is positioned inside the case with respect to an outer peripheral end portion of the upper surface of the case. It is the glass attachment structure in any one of 1-4.

  The invention described in claim 6 is characterized in that an auxiliary adhesive reservoir for storing the adhesive flowing into the dam groove on the upper surface of the case is provided. It is a glass attachment structure in any one of -5.

  The invention according to claim 7 is characterized in that a decoration portion is provided on an outer peripheral side of the damming groove on the upper surface of the case. It is a structure.

  In the invention according to claim 8, a solar panel is provided in the case so as to be close to the lower surface of the glass, and an attachment recess opened on the inner side of the opening is provided on the upper surface of the case. The glass according to any one of claims 1 to 7, wherein a spacer member is provided in the mounting recess so as to partially protrude between the glass and the solar panel. It is a mounting structure.

  According to this invention, by attaching the glass to the upper surface of the case with an adhesive, it is not necessary to provide at least both side end portions of the case as in the conventional example, and at least both side end portions of the glass are connected to the end of the case. The glass can be attached to the upper surface of the case in a state where it is exposed from the side to the outside, thereby improving the appearance and design of the entire device. In this case, even if the adhesive flows out to the outer peripheral side of the case due to the pressurization of the glass, the adhesive flows out to the outer peripheral end of the case by the dam groove provided on the outer peripheral side of the adhesive application region on the upper surface of the case. Can be stopped, and this can also improve the appearance and design of the entire device.

(Embodiment 1)
Hereinafter, with reference to FIGS. 1-10, Embodiment 1 which applied the glass attachment structure of this invention to the wristwatch is described.
The wristwatch includes a wristwatch case 1 made of metal or synthetic resin as shown in FIGS. The watch case 1 is provided with an opening 5 penetrating from the upper surface to the lower surface, and a watch glass 2 is attached to the upper surface of the watch case 1 as shown in FIGS. Further, as shown in FIGS. 3 and 4, a watch module 3 is accommodated inside the watch case 1, and a back cover 4 is provided on the lower surface of the watch case 1 as shown in FIG. 6. It is attached via a waterproof ring 4a.

  Further, as shown in FIG. 1, a watch band 6 is attached to the watch case 1 at 12 o'clock side and 6 o'clock side, and the watch case 1 is attached to each side at 3 o'clock side and 9 o'clock side. As shown in FIGS. 1 and 2, a plurality of push button switches SW are provided. In this case, as shown in FIGS. 3 and 4, the timepiece module 3 includes various parts necessary for a timepiece function such as a display unit 3a for displaying information such as time. The watch module 3 has a transparent solar panel 8 disposed on the upper portion thereof via a middle frame 7. The solar panel 8 is assembled into the watch case 1 from below with the solar panel 8 approaching the lower surface of the watch glass 2. It is.

  By the way, the watch glass 2 is made of an inorganic glass or an organic glass, and is formed in a substantially rectangular flat plate shape as shown in FIGS. The inclined surface 2b is formed on the upper surface on the end 2a side located on both sides of the side and the 9 o'clock side. Further, the upper surface of the watch case 1 is formed on a flat surface except for the upper and lower sides of the 12 o'clock side and the 6 o'clock side. That is, as shown in FIG. 4, the upper surface of the watch case 1 is formed on a flat surface continuous with the left and right end portions 1 a at the 3 o'clock side and the 9 o'clock side, and the left and right end portions 2 a of the watch glass 2. Is formed to be exposed to the outside side.

  In this case, as shown in FIG. 6, the watch glass 2 has both left and right end portions 2 a slightly (approximately 0.3 mm) of the watch case 1 than the left and right end portions 1 a on the upper surface of the watch case 1. It is formed in a size located inside, so that the left and right end portions 2 a of the watch glass 2 are formed so as not to protrude outward from the left and right end portions 1 a on the upper surface of the watch case 1. Further, as shown in FIGS. 3 and 6, a stepped portion 1 b is formed one step higher by approximately the same thickness as the watch glass 2 on both the upper and lower sides of the upper surface of the watch case 1 at the 12 o'clock side and the 6 o'clock side. ing.

  As shown in FIGS. 5 to 8, an adhesive 10 is applied to the upper surface of the watch case 1 along the inner periphery of the opening 5. This adhesive 10 is a thermosetting type made of a one-part epoxy resin, has a longer curing time than a two-part type, and does not cure during application. That is, as shown in FIGS. 5 to 7, the adhesive 10 draws a predetermined locus on the upper surface of the watch case 1 by the dispenser 9, that is, a locus along the inner peripheral surface of the opening 5 on the upper surface of the watch case 1. As shown in FIG. 8, the thickness is about 0.1 mm, and the width Ew of the application region E is about 1.2 mm to 1.5 mm. .

  Further, as shown in FIGS. 5 and 6, a damming groove 11 is provided at a position located on the outer peripheral side of the application region E of the adhesive 10 on the upper surface of the wristwatch case 1. That is, as shown in FIGS. 5 to 8, the dam groove 11 is a concave groove having a rectangular cross section, a width W1 of about 0.6 mm, and a depth H1 of about 0.3 to 0.3. The watch case 1 is provided in a substantially straight line along the left and right end portions 1a of the watch case 1 at 3 o'clock side and 9 o'clock side.

  Further, as shown in FIG. 5, an adhesive reservoir portion is provided at a position located on the outer peripheral side of the application region E corresponding to the application start position 10a and the application end position 10b of the adhesive 10 on the upper surface of the watch case 1. 12 is continuously provided in the blocking groove 11. That is, as shown in FIG. 5, the adhesive 10 starts to be applied from the upper left corner located approximately in the middle between the 12 o'clock side and the 9 o'clock side, and is applied to the inner peripheral surface of the opening 5 on the upper surface of the watch case 1. When the circuit wraps around and ends at the upper left corner, the application start position 10a and the application end position 10b are applied in an overlapping manner. As a result, the adhesive reservoir 12 is formed in a substantially triangular concave shape having a large area at the upper left corner of the upper surface of the watch case 1 corresponding to the application start position 10a and the application end position 10b of the adhesive 10. .

  Further, as shown in FIGS. 5 to 8, an auxiliary dam groove 13 is provided on the upper surface of the watch case 1 along the inner peripheral side of the application region E of the adhesive 10. That is, the auxiliary dam groove 13 is a concave groove having a semicircular cross section, and has a depth H2 of about 0.3 mm and is substantially the same as the depth H1 of the outer dam groove 11 (H2 = H1). ) And the groove width W2 is about 0.3 mm, which is smaller than the groove width W1 of the outer damming groove 11 (W2 <W1). It is formed in a continuous annular shape that goes around the circumference.

  On the other hand, as shown in FIGS. 6 and 8, a decorative layer 14 that covers the upper surface of the watch case 1 is provided on the outer peripheral portion of the lower surface of the watch glass 2 by printing or the like. The decorative layer 14 is made of an opaque ink, and covers at least the damming groove 11 on the outer peripheral side, the adhesive reservoir 12, the application region E of the adhesive 10, and the auxiliary damming groove 13 on the inner peripheral side. It is configured to be invisible from the outside.

  An attachment jig 15 for attaching such a watch glass 2 to the watch case 1 is configured as shown in FIGS. That is, the attachment jig 15 includes a jig main body 16, and a pair of holding members 17 for holding the watch case 1 are fixed to front and rear portions (upper and lower parts in FIG. 9) on the upper surface of the jig main body 16. Has been. Slide members 18 are attached to the left and right sides between the pair of holding members 17 so as to be slidable in the left-right direction.

  A pair of position adjustment plates 19 for adjusting the attachment position of the watch glass 2 are attached to the upper surface of the slide member 18 so as to be slidable in the left-right direction. That is, the position adjusting plate 19 includes a pair of elongated holes 19a that are elongated in the left-right direction, and a pair of fixing screws 19b that are inserted into the pair of elongated holes 19a from above and screwed to the slide member 18, respectively. And. Accordingly, the pair of position adjusting plates 19 are configured to move in the left-right direction along the long holes 19a when the fixing screws 19b are loosened, and are fixed to the slide member 18 when the fixing screws 19b are tightened. Has been.

Next, a case where the watch glass 2 is attached to the watch case 1 using the attachment jig 15 will be described.
First, the pair of slide members 18 are slid in a direction away from each other, and the fixing screws 19b are loosened to slide the pair of position adjustment plates 19 in directions away from each other. In this state, the watch case 1 is set on the pair of holding members 17. Then, after sliding the pair of slide members 18 in a direction approaching each other, the pair of position adjusting plates 19 are slid left and right to adjust the watch glass 2 so that it can be set at a predetermined position of the watch case 1, In this state, the fixing screws 19 b are tightened to fix the pair of position adjusting plates 19 on the pair of slide members 18.

  In this state, the adhesive 10 is applied to the upper surface of the watch case 1 set on the pair of holding members 17. At this time, the dispenser 9 for applying the adhesive 10 is erected vertically with respect to the upper surface of the watch case 1, and the vertically erected dispenser 9 is moved by a moving device (not shown) having the same mechanism as that of the XY plotter. By doing so, the adhesive 10 is applied to a predetermined region on the upper surface of the watch case 1. In this case, the moving device automatically moves the dispenser 9 by computer control based on the XY coordinate data, and accurately draws the application locus K of the adhesive 10 as shown in FIG.

  Thereafter, the watch glass 2 is set on the watch case 1. At this time, since the pair of position adjusting plates 19 has been adjusted in advance, the timepiece glass 2 is accurately placed on the upper surface of the watch case 1 by the pair of position adjusting plates 19. At this time, the watch glass 2 may be set at a position eccentric with respect to the upper surface of the watch case 1 by loosening the pair of fixing screws 19b and moving the pair of position adjusting plates 19 in the left-right direction.

  In this state, when the timepiece glass 2 is pressurized and pressed against the watch case 1, the adhesive 10 is pressed and flows toward the outer peripheral side and the inner peripheral side as shown in FIG. Become thick. Thereby, the watch glass 2 is attached to the upper surface of the watch case 1. Thereafter, the wristwatch case 1 can be detached from the mounting jig 15 by moving the slide members 18 in directions away from each other to release the position restriction on the watch glass 2.

  Thus, according to this wristwatch glass mounting structure, the watch glass 2 is attached to the upper surface of the wristwatch case 1 with the adhesive 10, so that at least the left and right ends 1 a of the wristwatch case 1 are attached as in the conventional example. There is no need to provide a step portion, and the watch glass 2 is placed on the upper surface of the watch case 1 with the end portions 2a on both the left and right sides of the watch glass 2 exposed from the end portions 1a on the left and right sides of the watch case 1 to the outside. This makes it possible to improve the appearance and design of the entire watch.

  In this case, even if the adhesive 10 is pressed against the upper surface of the watch case 1 by pressing the watch glass 2 and flows out toward the outer periphery of the watch case 1, the adhesive 10 is applied to the upper surface of the watch case 1. Since the adhesive 10 flows into the dam groove 11 provided on the outer peripheral side of the region E, it is ensured that the adhesive 10 flows out to the outer end 2 a of the wristwatch case 1 by the dam groove 11 on the outer peripheral side. This can also improve the appearance and design of the entire wristwatch.

  Further, since the adhesive reservoir 12 is provided at a position located on the outer peripheral side of the application region E corresponding to the application start position 10a and the application end position 10b on the upper surface of the watch case 1, the adhesive 10 is applied. At this time, a large amount of the adhesive 10 is applied to the application start position 10a and the application end position 10b, and the adhesive 10 in the portion where the large amount is applied flows toward the outer peripheral side of the watch case 1 and the adhesive reservoir 12 Thus, it is possible to reliably prevent the adhesive 10 from flowing out to the end 1a on the outer peripheral side of the watch case 1. As a result, it is possible to reliably prevent the adhesive 10 from flowing out from the left and right end portions 1a of the wristwatch case 1, thereby improving the overall appearance and design of the wristwatch.

  Further, an auxiliary dam groove 13 is provided on the inner peripheral side of the application area E of the adhesive 10 on the upper surface of the watch case 1 in a continuous annular shape that goes around the inner periphery of the opening 5 of the watch case 1. Therefore, even if the adhesive 10 is pressed against the upper surface of the watch case 1 by pressurization of the watch glass 2 and flows out toward the inner peripheral side of the watch case 1, the adhesive 10 flows into the auxiliary damming groove 13. Thus, it is possible to prevent the adhesive 10 from flowing out to the inner peripheral side of the watch case 1 by the auxiliary damming groove 13 on the inner peripheral side.

  Further, since a decorative layer 14 covering the upper surface of the watch case 1 is provided on the outer peripheral portion of the lower surface of the watch glass 2 by printing or the like, at least the inner periphery of the auxiliary damming groove 13 from the outer peripheral side of the damming groove 11. Cover all of the area extending to the side, that is, the outer damming groove 11, the adhesive reservoir 12, the application area E of the adhesive 10, and the auxiliary damming groove 13 on the inner circumferential side so as to be hidden from view. be able to. For this reason, even if the adhesive 10 slightly protrudes from the outer damming groove 11 or from the auxiliary damming groove 13 on the inner peripheral side, it can be hidden by the decorative layer 14. Can improve the overall appearance and design of the wristwatch.

  Further, the watch glass 2 has an end portion 2a on the outer peripheral side, that is, end portions 2a on both right and left sides, slightly less than an end portion 1a on the outer peripheral side on the upper surface of the watch case 1, that is, end portions 1a on both left and right sides. Since the end 2a of the watch glass 2 is formed so as not to protrude outward from the end 1a of the watch case 1, the watch case 1 can be dropped. Even if it hits against an object, the end 2a of the watch glass 2 can be directly prevented from receiving an impact, which can cause the watch glass 2 to be chipped or be damaged. Can be prevented.

(Embodiment 2)
Next, a second embodiment in which the glass mounting structure of the present invention is applied to a wristwatch will be described with reference to FIG. In addition, the same code | symbol is attached | subjected and demonstrated to the same part as Embodiment 1 shown by FIGS.
This watch glass mounting structure is a configuration in which an auxiliary adhesive reservoir 20 for storing the adhesive 10 that has flowed into the dam groove 11 provided on the outer peripheral side of the upper surface of the watch case 1 is provided. Except for this, the configuration is substantially the same as in the first embodiment.

  In this case, the shape of the opening 21 on the upper surface of the watch case 1 is different from that of the first embodiment, and accordingly, the application locus K of the adhesive 10, the shape of the auxiliary damming groove 22, and the decorative layer 14 of the watch glass 2. The shape is also different from that of the first embodiment. That is, the opening 21 of the wristwatch case 1 has a substantially rectangular shape, and is substantially trapezoidal that protrudes toward the inside of the opening 21 at the middle of each side, that is, at each middle between the upper and lower sides and the left and right sides. The protrusion 23 is provided.

  As shown in FIG. 11, the auxiliary adhesive reservoir 20 is located on the outer peripheral side of the application region E of the adhesive 10 on the upper surface of the watch case 1 and along the left and right end portions 1 a on the upper surface of the watch case 1. It is located in the middle of the provided outer peripheral dam groove 11 and has a substantially trapezoidal shape corresponding to the left and right protrusions 23, and protrudes toward the opening 21 of the watch case 1. ing. Also in this case, the adhesive reservoir 12 is provided at the locations corresponding to the application start position 10a and the application end position 10b of the adhesive 10 as in the first embodiment.

  Further, the application locus K of the adhesive 10 is provided along the inner peripheral surface of the opening 21 of the watch case 1 as shown in FIG. That is, the coating locus K is such that the inner peripheral surface of the wristwatch case 1 is substantially square-shaped, and the positions of the protrusions 23 provided at the intermediate portions of the sides are bent along the protrusions 23. Thus, the auxiliary adhesive reservoir 20 is drawn in a state avoided. Further, the auxiliary damming portion 22 is located on the inner peripheral side of the application locus K of the adhesive 10 and is provided along the inner peripheral surface of the opening 21 of the watch case 1. Also in this case, the auxiliary dam groove 22 is formed so that the groove width W2 thereof is narrower than the groove width W1 of the outer dam groove 11 (W2 <W1), as in the first embodiment (see FIG. 7). ). The decorative layer 14 of the watch glass 2 is also formed in the same shape as the upper surface of the watch case 1 excluding the opening 21 of the watch case 1.

  In such a wristwatch glass mounting structure, the same effect as that of the first embodiment is obtained, and the auxiliary adhesive reservoir 20 is provided in the middle portion of the outer damming groove 11. Flows out toward the outer periphery of the watch case 1 due to the pressure of the watch glass 2, and the adhesive 10 flows into the dam groove 11 provided on the upper surface of the watch case 1 and overflows. The adhesive 10 can be stored in an adhesive reservoir 20 that is continuously provided in the middle portion of the dam groove 11 on the outer peripheral side.

  For this reason, even if the adhesive 10 overflows in the damming groove 11 on the outer peripheral side, it can be surely prevented from flowing out to the end 2a on the outer peripheral side of the watch case 1, so that the applied amount of the adhesive 10 is slightly reduced. Even if the pressure is increased or the pressure on the watch glass 2 is slightly increased, the adhesive 10 can be reliably prevented from sticking out, so that the watch glass 2 is stronger on the upper surface of the watch case 1 than in the first embodiment. Can be attached to.

(Embodiment 3)
Next, a third embodiment in which the glass mounting structure of the present invention is applied to a wristwatch will be described with reference to FIGS. Also in this case, the same parts as those in the first embodiment shown in FIGS.
The wristwatch glass mounting structure has a configuration in which a decoration portion 25 is provided on the upper surface of the wristwatch case 1, and the other configuration is substantially the same as that of the first embodiment.

  That is, the decorating part 25 is configured such that the decorating material 27 is filled in the decorating groove 26 provided further on the outer peripheral side than the damming groove 11 on the outer peripheral side on the upper surface of the watch case 1. In this case, the decorative groove 26 is provided on the upper surface of the watch case 1 along the damming groove 11 on the outer peripheral side, but may be provided along the entire periphery of the watch glass 2. The decorating material 27 is a color ink, a luminous paint, a phosphorescent paint, or the like. The decorative layer 14 provided on the lower surface of the watch glass 2 is provided with slit-like transparent window portions 28 corresponding to the decorative portions 25.

  According to such a wristwatch glass mounting structure, the same effects as those of the first embodiment can be obtained, and a decoration effect can be added by the decoration portion 24 provided on the upper surface of the wristwatch case 1. That is, even if the decorative layer 14 is provided on the lower surface of the watch glass 2, the decorative portion 24 provided on the upper surface of the watch case 1 can be seen through the transparent window 28 provided on the decorative layer 14. Therefore, the appearance and design of the entire wristwatch can be further improved as compared with the first embodiment.

(Embodiment 4)
Next, with reference to FIGS. 14-17, Embodiment 4 which applied the glass attachment structure of this invention to the wristwatch is described. Also in this case, the same parts as those in the first embodiment shown in FIGS.
In this watch glass mounting structure, a mounting recess 30 is provided on the upper surface of the watch case 1, a spacer member 31 is provided in the mounting recess 30, and a part 31 a of the spacer member 31 is provided between the watch glass 2 and the solar panel 8. Other than this, the configuration is substantially the same as that of the first embodiment.

  In this case, as shown in FIGS. 14 and 16, the solar panel 8 is adhered to the upper surface of the middle frame 7 by the double-sided adhesive tape 32, and is incorporated in the watch case 1 together with the watch module 3 in this state. That is, the solar panel 8 is disposed in the opening 5 on the upper surface of the watch case 1 so as to correspond to the inner peripheral surface in a state in which the solar panel 8 is close to the lower surface of the watch glass 2.

  In addition, the solar panel 8 has an electrode (not shown) provided on the lower surface thereof electrically connected to a circuit board (not shown) of the timepiece module 3 by a coil spring 33 so that the generated power can be converted into a timepiece. The module 3 is configured to be supplied. In this case, the coil spring 33 is in elastic contact with the lower surface of the solar panel 8 and the circuit board of the timepiece module 3 through the through hole 7a of the middle frame 7, as shown in FIG.

  Further, as shown in FIGS. 14, 15, and 17, a mounting recess 30 is opened to the inner peripheral surface side of the watch case 1 at an almost middle portion of the inner peripheral portions on the left and right sides on the upper surface of the watch case 1. Is provided. As shown in FIG. 17, the mounting recess 30 has a depth of about 0.3 mm and is provided from the inner peripheral end face of the watch case 1 to the auxiliary damming groove 13 on the inner peripheral side. As shown in FIGS. 16 and 17, the spacer member 31 attached to the attachment recess 30 is a sheet made of a transparent synthetic resin such as PET (polyethylene terephthalate) and has a thickness of about 0.25 mm. 30, with a portion 31 a protruding into the opening 5 on the upper surface of the watch case 1, it is bonded to the mounting recess 30.

  In this case, the upper surface of the spacer member 31 does not protrude upward from the mounting recess 30 and is disposed slightly lower (about 0.05 mm) than the upper surface of the watch case 1, thereby the upper surface of the spacer member 31. The adhesive 10 flows into a slight gap between the watch glass 2 and the lower surface of the watch glass 2. The spacer member 31 is formed such that the length of a portion 31a protruding inward of the wristwatch case 1 is about 0.7 to 1.0 mm, and the protruding portion 31a includes the watch glass 2, the solar panel 8, and the like. It arrange | positions between these, and it is comprised so that the mutual contact of the lower surface of the timepiece glass 2 and the upper surface of the solar panel 8 may be prevented by this.

  According to such a glass mounting structure of a wrist watch, the same effect as that of the first embodiment is obtained, and a spacer member 31 is provided in the mounting recess 30 provided on the upper surface of the watch case 1. Since the portion 31a is disposed between the watch glass 2 and the solar panel 8, even if the solar panel 8 is placed close to the watch glass 2, the mutual contact between the watch glass 2 and the solar panel 8 is prevented. In addition, high-density mounting can be achieved.

  In this case, the solar panel 8 is pushed up by the spring force of the coil spring 33 that is electrically connected to the timepiece module 3 while being adhered to the inner frame 7 by the double-sided adhesive tape 32, and the spring of the coil spring 33 is Even if the solar panel 8 is peeled off from the inner frame 7 by force, the watch glass 2 and the solar panel 8 are reliably prevented from contacting each other by the protruding part 31a of the spacer member 31 protruding inside the watch case 1. be able to.

  In the first to fourth embodiments, the case where the inner peripheral auxiliary dam groove 13 on the upper surface of the watch case 1 is formed smaller than the outer peripheral dam groove 11 is described. For example, as shown in FIG. 18, the auxiliary dam groove 13 on the inner peripheral side and the dam groove 11 on the outer peripheral side on the upper surface of the watch case 1 are the same size, that is, the auxiliary dam on the inner peripheral side with the same groove width. The groove 13 may be formed larger.

  Further, not limited to this, as shown in FIG. 18, arc-shaped chamfered portions are provided on the inner peripheral edge 11 a of the outer damming groove 11 and the outer peripheral edge 13 a of the inner peripheral auxiliary damming groove 13, respectively. The adhesive material 10 may easily flow into the grooves 11 and 13, and as shown in FIG. 18, the inner peripheral surface located on the upper surface side of the watch case 1 is inclined to be inclined with respect to the upper surface of the watch case 1. An inclined surface 1c may be formed to further improve the design.

  Moreover, in the said Embodiment 1-4 and its modification, the upper surface of the watch case 1 is formed in the flat surface which continues only to the edge part 1a of both the right and left of 3 o'clock side and 9 o'clock side, Although the case where only the left and right end portions 2a of the hour side and the 9 o'clock side are exposed to the outside of the watch case 1 has been described, the present invention is not limited to this, and the entire upper surface of the watch case 1 is formed as a flat surface. In addition, the entire outer peripheral end of the watch glass 2 may be exposed to the outside of the watch case 1. In this case, the dam groove 11 may be provided in an annular shape over the entire circumference of the application region E on the outer peripheral side of the application region E of the adhesive 10.

  In the first to fourth embodiments and modifications thereof, the decorative layer 14 provided on the lower surface of the watch glass 2 has a shape corresponding to the upper surface of the watch case 1 except for the openings 5 and 21 of the watch case 1. However, the present invention is not limited to this. For example, as long as the shape covers the region extending from the outer peripheral side of the damming groove 11 to the inner peripheral side of the auxiliary damming groove 13, it is free according to the design. You may form in a shape.

  Furthermore, in the first to fourth embodiments and the modifications thereof, the case where the present invention is applied to a wristwatch has been described. However, the present invention is not necessarily a wristwatch, and may be applied to various watches such as a travel watch, a table clock, an alarm clock, and a wall clock. In addition, it can be widely applied to various electronic devices such as a mobile phone, a personal digital assistant (PDA), and a mobile.

It is a front view of Embodiment 1 which applied this invention to a wristwatch. FIG. 2 is a perspective view of the wristwatch with the watch band removed in FIG. 1. It is an expanded sectional view in the AA arrow of FIG. FIG. 3 is an exploded perspective view of FIG. 2. It is a front view of the wristwatch case of FIG. It is an expanded sectional view of the principal part in the BB arrow view of FIG. It is an expanded sectional view of the principal part which showed the state which apply | coated the adhesive agent to the upper surface of the wristwatch case of FIG. FIG. 8 is an enlarged cross-sectional view of a main part showing a state in which a watch glass is bonded to the upper surface of the watch case of FIG. 7. FIG. 6 is a plan view showing an attachment jig for adhering a watch glass to the watch case of FIG. 5. It is sectional drawing in CC arrow of the attachment jig of FIG. It is the front view which showed the state which removed the right half of the timepiece glass from the upper surface of the wristwatch case in Embodiment 2 which applied this invention to the wristwatch. It is a front view of Embodiment 3 which applied this invention to the wristwatch. It is an expanded sectional view of the principal part in the DD arrow of FIG. It is a disassembled perspective view of Embodiment 4 which applied this invention to the wristwatch. It is the front view which showed the wristwatch case of FIG. It is an expanded sectional view in the EE arrow of FIG. It is the expanded sectional view which showed the principal part of FIG. It is the expanded sectional view of the principal part which showed the modification of the glass attachment structure of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Watch case 1a End part of watch case 2 Watch glass 2a End part of watch glass 3 Watch module 5, 21 Opening part 7 Middle frame 8 Solar panel 9 Dispenser 10 Adhesive 11 Damping part 12 Adhesive reservoir 13, 22 Auxiliary Damping portion 14 Cosmetic layer 20 Auxiliary adhesive reservoir portion 25 Decorating portion 30 Mounting recess portion 31 Spacer member
31a Part of spacer member E Adhesive application area

Claims (8)

Glass with a lower surface formed into a flat surface;
An opening is provided on the upper surface on which the glass is disposed, a case where the upper surface is formed on a flat surface continuous to at least both side end portions, and at least both side end portions of the glass are exposed,
An adhesive applied to the upper surface of the case along the inner periphery of the opening;
A dam groove provided on the outer peripheral side of the adhesive application region on the upper surface of the case.   The adhesive reservoir part which continues to the said damming groove is provided in the location corresponding to the application start position and the application end position of the adhesive on the upper surface of the case. The glass mounting structure described.   3. The glass mounting structure according to claim 1, wherein an auxiliary damming groove is provided on an inner peripheral side of the adhesive application region on the upper surface of the case.   4. A decorative layer is provided on the lower surface of the glass, the decorative layer covering at least a region extending from the outer peripheral side of the damming groove to the inner peripheral side of the auxiliary damming groove. The glass mounting structure described in 1.   The said glass is formed in the magnitude | size in which the outer peripheral edge part is located inside the said case rather than the outer peripheral edge part in the said upper surface of the said case. Glass mounting structure.   The auxiliary dam reservoir for collecting the adhesive that has flowed into the dam groove on the upper surface of the case is provided. Glass mounting structure.   The glass mounting structure according to any one of claims 1 to 6, wherein a decoration portion is provided on an outer peripheral side of the damming groove on the upper surface of the case.   Inside the case, a solar panel is provided close to the lower surface of the glass, and the upper surface of the case is provided with a mounting recess opened to the inside of the opening. The glass mounting structure according to claim 1, wherein a spacer member is provided between the glass and the solar panel so that a part of the spacer is disposed.

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