JP2013046218A - Waterproof structure, portable electronic apparatus including the same, and waterproof method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a waterproof type portable telephone to be smaller, thinner, and lighter.SOLUTION: A waterproof structure includes: fitting parts (fitting pawls 107a) to be mutually fitted to each one of two members (an external cover 101d and a front cover 107); and an elastic member 110c arranged on the surface of the external cover 101d. The elastic member 110c is held between the two members when the two members are fitted, thereby to form a sealed waterproof space. When viewing from the holding direction of the elastic member 110c, the distal end of the elastic member 110c is positioned on a more outer side than the outer periphery of a bottom surface of the elastic member 110c joined with the surface of the external cover 101d.

Description

  The present invention relates to a waterproof structure, a portable electronic device including the waterproof structure, and a waterproof method.

  In the development of portable electronic devices, the increase in thickness due to the addition of new functions and the reduction in thickness due to new technologies to solve this are repeated. In recent portable electronic devices, a waterproof function has been popular, and devices equipped with the same have become widespread. A general waterproof structure is a structure in which a gap is sealed using a rubber seal member.

  In such a waterproof structure, a seal member is sandwiched between two members constituting the housing, and a seal member is integrally formed on one of the two members constituting the housing. There is a type that is sandwiched between one member and the other member. The sandwiching direction includes a direction perpendicular to the main surface of the housing (Z direction), a main surface direction of the housing (XY direction), and a combination thereof.

  13A to 13E are external views of a general foldable mobile phone having a waterproof function. FIG. 13A is an external view showing the front surface of the telephone in an open state (open state). As shown in FIG. 13A, in this mobile phone, the first casing 1 and the second casing 2 are connected by a hinge 3 so as to be foldable. A main display unit 4 is provided in the first housing 1. The second casing 2 is provided with operation keys 5.

  FIG. 13B is an external view showing the front surface of the telephone in a folded state (closed state). As shown in FIG. 13B, the sub display unit 6 is provided on the surface of the first housing 1 opposite to the surface on which the main display unit 4 is provided.

  FIG. 13C is an external view showing a side surface of the telephone in a closed state. As shown in FIG. 13C, the second housing 2 includes a front cover 7 and a rear cover 8.

  FIG. 13D is an external view showing the back of the telephone in a closed state. As shown in FIG. 13D, a camera 9 and a removable battery cover 10 are provided on the surface of the second housing 2 opposite to the surface on which the operation keys 5 are provided.

  FIG. 13E is an external view showing the battery cover 10 removed from the second housing 2. As shown in FIG. 13E, the battery cover 10 is provided with a guide claw 10 a that serves as a guide when the battery cover 10 is fitted into the second housing 2.

  14A and 14B are cross-sectional views taken along line XIV-XIV in FIG. 13D. 14A shows a state in which the battery cover 10 is attached to the second housing 2 (fitted state), and FIG. 14B shows a state in which the battery cover 10 has been removed from the second housing 2 (non-fitted state). Show.

  As shown in FIGS. 14A and 14B, the battery cover 10 includes a resin molded product intermediate plate 10b, a silicone rubber sealing member 10c, and a resin molded product exterior cover 10d. Further, the battery cover 10 is provided with a fitting claw 7a, and the front cover 7 is provided with a fitting groove 7b that is fitted to the fitting claw 7a when the battery cover 10 is attached.

  The seal member 10c has a mountain shape in cross section and is integrally formed with the intermediate plate 10b. For integral molding, compression molding, transfer molding, injection (LIM) molding, or the like is employed. Here, a primer that generates an adhesive force may be applied between the seal member 10c and the intermediate plate 10b before the integral molding. The intermediate plate 10b is joined to the exterior cover 10d using a double-sided tape or the like.

  In this waterproof structure, a rubber seal member 10c is provided on the battery cover 10 constituting a part of the second casing 2, and the direction perpendicular to the main surface of the second casing 2 (Z direction) The structure is sandwiched between the front cover 7 and the exterior cover 10d (see FIGS. 14A and 14B). By such sandwiching, the seal member 10c is crushed, and the hermeticity of the battery cover 10 is secured.

  As described above, each of the two opposing members is provided with means for fitting each other, and an elastic member is provided on the surface of one of the members, and when the two members are fitted, the elastic member is sandwiched between the members. Examples of structures for waterproofing the space formed by the two members by indentation are described in Patent Documents 1-3.

JP 2003-247644 A JP 2005-143138 A JP 2010-124072 A

  However, the waterproof structure described in Patent Documents 1 to 3 and the like has a problem that the portable electronic device cannot be reduced in size, thickness, and weight.

  In the elastic member for sealing shown in Patent Documents 1 to 3, the tip end portion is located within the outer periphery of the bottom surface of the elastic member when viewed from the sandwiching direction of the elastic member. In such a shape, when a force in a direction perpendicular to the surface on which the elastic member is formed is applied to the elastic member, the force is used to crush the elastic member. For this reason, if the member that supports the bottom surface of the elastic member is a relatively thin member such as a battery cover, the member may be deformed. As a result, a metal intermediate plate is required between the bottom surface of the elastic member and the support member that supports it. become.

  For example, as shown in FIGS. 14A and 14B, the battery cover 10 (particularly the exterior cover 10d) needs not to be deformed so that the seal member 10c can be sufficiently compressed. Therefore, it is necessary to provide a metal intermediate plate 10b between the seal member 10c and the battery cover 10. When such a metal intermediate plate 10b is present, the thickness of the portion formed by fitting the front cover 7 and the battery cover 10d increases, and the weight of the portable electronic device also increases.

  In view of the above problems, an object of the present invention is to provide a waterproof structure that is suitable for reducing the size, thickness, and weight of portable electronic devices and that is excellent in waterproofness.

  One aspect of the present invention includes a fitting portion that fits into each of two members, and an elastic member that is provided on one of the two opposing surfaces of the two members, The present invention relates to a waterproof structure that forms a sealed waterproof space by sandwiching the elastic member between the two members when the two members are fitted. In such a waterproof structure, as viewed from the direction in which the elastic member is sandwiched, the tip of the elastic member is located outside the outer periphery of the bottom surface of the elastic member joined to the one surface. It is a feature.

  Another aspect of the present invention relates to a waterproofing method for forming a sealed waterproof space by inserting an elastic member between the two members when the two members are fitted. In this waterproofing method, an elastic member is provided on one of the two opposing surfaces of the two members, and when viewed from the direction of sandwiching the elastic member, the tip of the elastic member is located on the one surface. It is a feature of this aspect that the elastic member is provided so as to be positioned outside the outer periphery of the bottom surface of the bonded elastic member.

  According to the present invention, there is an effect that the mobile phone can be reduced in size, thickness, and weight.

1 is a perspective view of a mobile phone according to a first embodiment of the present invention. The disassembled perspective view which shows the component of the mobile telephone by the example of 1st embodiment of this invention. The front view which shows the telephone set front surface in an open state of the example of 1st embodiment. The front view which shows the telephone front surface in a closed state of the example of 1st embodiment. The side view which shows the telephone side surface in a closed state of the example of 1st embodiment. The rear view which shows the telephone back surface in a closed state of the example of 1st embodiment. The front view which shows the battery cover removed from the 2nd housing | casing of the example of 1st embodiment. (A) is a back view of the battery cover shown in FIG. 2E, (b) is a side view thereof, and (c) is a cross-sectional view taken along line IV-IV in (b). Sectional drawing in the III-III line | wire of FIG. 2D. FIG. 3B is a cross-sectional view taken along line III-III in FIG. 2D and shows a state when the battery cover and the front cover are not fitted. The detail drawing of the hook structure of the elastic member for a seal | sticker in the example of 1st embodiment. FIG. 4B is a detailed view of a front cover portion with which the hook of FIG. (A) is a side view which shows a mode before fitting the battery cover in a 1st embodiment in a 2nd housing | casing, (b) is sectional drawing which shows the mode. (A) is a side view which shows a mode during fitting the battery cover in a 1st embodiment in the 2nd housing | casing, (b) is sectional drawing which shows the mode. (A) is a side view which shows a mode after fitting the battery cover in a 1st embodiment in the 2nd housing | casing, (b) is sectional drawing which shows the mode. Sectional drawing which shows the fitting state of the battery cover provided with the elastic member for sealing in the example of 2nd embodiment, and a front cover. Sectional drawing which shows a state when the battery cover and front cover provided with the elastic member for sealing in the example of 2nd embodiment are not fitting. The detail drawing of the hook structure of the elastic member for a seal | sticker in the example of 2nd embodiment. The perspective view which shows the application example 1 of the hook structure of the elastic member for a seal | sticker in each embodiment. The perspective view which shows the application example 2 of the hook structure of the elastic member for a seal | sticker in each embodiment. The perspective view which shows the application example 3 of the hook structure of the elastic member for a seal | sticker in each embodiment. The figure which showed the back surface of the battery cover in order to demonstrate the elastic member for a seal | sticker of the other embodiment of this invention. Sectional drawing which shows the fitting state of the battery cover provided with the elastic member for sealing of an example in the site | part T shown in FIG. 8, and a front cover. Sectional drawing which shows the state when the battery cover provided with the elastic member for sealing of the example in the site | part T shown in FIG. 8 and the front cover are not fitting. Sectional drawing which shows the fitting state of the battery cover provided with the elastic member for sealing of the other example in the site | part T shown in FIG. 8, and a front cover. Sectional drawing which shows the state when the battery cover provided with the elastic member for sealing of the other example in the site | part T shown in FIG. 8 and the front cover are not fitting. Sectional drawing which shows the elastic member for sealing of the other example in the site | part T shown in FIG. Sectional drawing which shows the elastic member for sealing of the other example in the site | part T shown in FIG. The front view which shows the telephone front in the open state of the mobile telephone relevant to this invention. The front view which shows the telephone front surface in the closed state of the mobile telephone relevant to this invention. The side view which shows the telephone side surface in the closed state of the mobile telephone relevant to this invention. The rear view which shows the telephone back surface in the closed state of the mobile telephone relevant to this invention. The front view which shows the battery cover removed from the 2nd housing | casing of the mobile telephone relevant to this invention. Sectional drawing in the XIV-XIV line | wire of FIG. 13D. FIG. 14B is a cross-sectional view taken along line XIV-XIV in FIG. 13D, showing a state when the battery cover and the front cover are not fitted. (A) is sectional drawing of the aspect provided with the elastic member for sealing of this invention, (b) is sectional drawing of the aspect provided with the elastic member for sealing relevant to this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Here, an example in which the portable electronic device according to the present invention is applied to a mobile phone will be described, but the application of the present invention is not limited to a telephone.

  In the mobile phone according to the present embodiment shown in FIGS. 1A to 1B and FIGS. 2A to 2E, the first casing 101 and the second casing 102 are foldably connected by a hinge 103 (FIG. 1A). . The first casing 101 includes a front panel 101a, a front cover 101b, a rear cover 101c, a flexible 112, and the like, and the second casing 102 includes a key sheet 114, a front cover 107, a rear cover 108, a battery 111, a battery cover 110, and I. / O cover 113 and the like (FIG. 1B).

  The first housing 101 is provided with a main display portion 104, and the second housing 102 is provided with operation keys 105 (FIG. 2A). A sub display unit 106 is provided on the surface of the first housing 101 opposite to the surface on which the main display unit 104 is provided (FIG. 2B). The outer casing of the second casing 102 is formed by a front cover 107, a rear cover 108, a battery cover 110, and the like (FIG. 2C). A camera 109 and a removable battery cover 110 are provided on the surface opposite to the surface on which the operation keys 105 of the second housing 102 are provided (FIG. 2D). The battery cover 110 is provided with a guide claw 110a that serves as a guide when the battery cover 110 is fitted into the second housing 102 (FIG. 2E).

  FIG. 2F shows details of the battery cover 110 shown in FIG. 2E. 2A is a rear view of the battery cover shown in FIG. 2E, FIG. 2B is a side view thereof, and FIG. 2C is a sectional view taken along line IV-IV in FIG. A continuous elastic member 110 c is provided on the back surface of the battery cover 110 (that is, the surface facing the front cover 107 of the second housing 102 to which the battery cover 110 is attached). When the battery cover 110 is attached to the front cover 107, the elastic member 110 c comes into contact with the front cover 107 to ensure the sealing performance of the battery cover 110.

  A fitting claw 107 a that fits the front cover 107 when the battery cover 110 is attached to the front cover 107 is further provided on the back surface of the battery cover 110.

  3A and 3B are cross-sectional views taken along line III-III in FIG. 2D. FIG. 3A shows a state where the battery cover 110 (exterior cover 110d) and the front cover 107 are fitted, and FIG. The state when the exterior cover 110d and the front cover 107 are not fitted is shown. The front cover 107 is formed with a fitting groove 107 b into which the fitting claw 107 a is fitted when the battery cover 110 is attached to the front cover 107. Further, when the battery cover 110 and the front cover 107 are fitted, the hook 201 made of the elastic member 110c comes into close contact with the front cover 107, so that the front cover 107 and the battery cover 110 of the second housing 102 are The space inside the housing formed by is sealed. The hook 201 maintains a close contact state with the front cover 107 by a force for returning the hook valve 202 when the hook valve 202 is bent.

  FIG. 4A shows in detail the shape of the hook 201 according to the first embodiment.

  The hook 201 is connected to the outer cover 110 d of the battery cover of the second casing 102.

  The hook 201 includes a hook valve 202 and a hook rib 203 that connects the base 202a of the hook valve 202 to the exterior cover 110d.

  The hook valve 202 becomes thinner from the hook valve root 202a toward the hook valve tip 202b. In other words, the hook valve tip 202b has two side surfaces (the outer surface 202c and the inner side) that form a predetermined angle (hook valve angle α) so that the width of the hook valve 202 increases from the hook valve tip 202b to the hook valve root 202a. Side surface 202d). The hook valve angle α is an acute angle.

  The hook angle θ, which is the angle formed by the outer surface 202c of the hook valve 202 and the exterior cover 110d, is an acute angle. The hook valve tip 202b is in a position extending outward from the side surface of the hook rib 203. The hook valve tip 202b is directed to the opposite side to the inside of the annular hook 201 (particularly the hook rib 203). That is, the hook 201 (particularly the hook rib 203) is formed in a continuous loop on the back surface of the exterior cover 110d as shown in FIG. 2F (a), and the hook rib 203 has an outer surface 203a and an inner surface 203b.

  The hook 201 is composed of an elastic member 101c integrally formed with a resin molded product forming the exterior cover 101d. As the elastic member 101c, an elastomer member obtained by mixing a rubber member with a resin member, a silicon rubber member, or another rubber member can be used. In the case of silicon rubber, a primer for generating an adhesive force to the exterior cover 101d is required, but there is an advantage that durability is higher than that of an elastomer member. On the other hand, an elastomer member has an advantage that a primer is not necessary.

  Further, in the case of an elastomer member, a method of integrally molding the elastic member 101c with the exterior cover 101d in the mold immediately after the exterior cover 101d is molded, so-called two-color molding is possible. This method is a cost-effective method compared with the case where silicon rubber is used as the elastic member 101c.

  Next, referring to FIGS. 3A to 3B and FIGS. 5A to 5C for the operation when fitting the battery cover 110 (exterior cover 110d) in the first embodiment to the front cover 107 and the state of the waterproof seal elastic member 110c. To explain.

  As shown in FIG. 5A, an engagement groove 107 b that engages with a fitting claw 107 a formed on the inner surface of the exterior cover 110 d of the battery cover 110 is formed on the side surface of the front cover 107. The engagement groove 107b is formed along a direction (first battery cover mounting direction Z in FIG. 5A) perpendicular to the back surface of the battery cover 110 on which the hook 201 is formed, and then the second housing 102 is provided. It is formed in a direction along the longitudinal direction (second battery cover mounting direction Y in FIG. 5B). That is, the engagement groove 107b is an L-shaped groove.

  FIG. 5A shows a state before the battery cover 110 is fitted to the front cover 107 of the second casing 102. As shown in FIG. 5B, the battery cover 110 is moved in the vertical direction (first battery cover mounting direction Z), and the fitting claws of the battery cover 110 are fitted into the fitting grooves 107b of the front cover 107 of the second casing 102. When 107a enters, the hook 201 of the battery cover 110 comes into contact with the front cover 107 as shown in FIG. 5B (b). At this time, the hook valve 202 is bent and deformed in a direction in which the hook angle θ is reduced while the inner surface 202d (see FIG. 4A) of the hook valve 202 and the front cover 107 are in close contact with each other.

  Further, when the battery cover 110 is slid in the lateral direction (second battery cover mounting direction Y) as shown in FIG. 5C, the fitting claws of the battery cover 110 are inserted into the fitting grooves 107b of the front cover 107 of the second casing 102. 107a is fitted. During the sliding, the battery cover 110 moves in the lateral direction (Y direction) while the inner surface 202d (see FIG. 4A) of the hook valve 202 and the front cover 107 are in close contact with each other.

  Thus, the battery cover 110 and the front cover 107 are fitted while the hook 201 is in close contact with the front cover 107, so that the airtightness of the front cover 107 is ensured.

  The hook 201 maintains a close contact state with the front cover 107 by a force for returning the hook valve 202 when the hook valve 202 is bent.

  Although it is necessary to prevent the battery cover 107 from being deformed by the repulsive force of the elastic member at the time of fitting as described above, the repulsive force of the deflection of the hook valve 202 for maintaining the close contact state is related to the present invention. In the case of the sealing member 10c (FIGS. 14A and 14B) according to the technology, the repulsive force generated by the compression of the elastic body is sufficiently small. Therefore, when using the hook 201 of this embodiment, it is not necessary to arrange the metal intermediate plate 10b (FIG. 14B) in the related art of the present invention between the front cover 107 and the hook 201.

  Further, since the metal intermediate plate 10b is not necessary, as shown in FIGS. 15A and 15B, the thickness of the portion formed by fitting the front cover 7 and the battery cover 10d in the second housing of the portable electronic device is thin. As a result, the weight of the portable electronic device is reduced.

  Note that the values shown in Table 1 are optimal in order to allow the hook 201 of the present embodiment to bend repeatedly elastically without plastic deformation.

  That is, the hook 201 preferably has an A hardness of 60. Further, the dimensions of the hook 201 and the front cover 107 (the dimensions of the respective parts shown in FIGS. 4A and 4B) are preferably the following values.

W1 = 0.35mm, W2 = 0.35mm, W3 = 0.70mm, W4 = 1.80mm
H1 = 0.55mm, H2 = 0.25mm, H3 = 0.80mm
α = 30 °, θ = 85 °
(Second embodiment)
6A is a cross-sectional view showing a state in which the battery cover 110 and the front cover 107 of the second embodiment are fitted, and FIG. 6B is a drawing of the exterior cover 110d and the front cover 107 of the second embodiment fitted. It is sectional drawing which showed the state when not combining. FIG. 6C is a cross-sectional view showing in detail the shape of the hook 301 according to the second embodiment. The structures of the invention components other than the hook 301 are basically the same as those of the first embodiment.

  As shown in FIG. 6C, the hook 301 in the second embodiment includes a hook head 302, a hook rib 303 that connects the base of the hook head 302 to the exterior cover 110d, and a hook valve 304 formed on the hook head 302. .

  As shown in FIG. 2F (a), the hook 301 (in particular, the hook rib 303) is formed in a continuous loop on the back surface of the exterior cover 110d, and the hook rib 303 has an inner surface facing the inside of the annular hook 301. 303a and an outer surface 303b facing outward. The hook angle θ2, which is the angle formed by the outer surface 303b of the hook rib 303 and the exterior cover 110d, is an acute angle. The hook rib 303 is formed to be inclined outward, but the width between the inner side surface 303a and the outer side surface 303b is substantially the same.

  An upper portion of the hook rib 303 is a hook head 302. The hook head 302 has a side surface 302a in which the inner side surface a of the hook rib 303 extends upward, and an upper surface 302b that is continuous with the side surface 302a and is substantially parallel to the back surface of the exterior cover 110d to which the hook rib 303 is connected.

  A hook valve 304 protrudes on the opposite side of the hook head 302 from the side surface 302a. The tip 304b of the hook valve is directed to the opposite side to the inside of the annular hook 301 (particularly the hook rib 303). That is, the hook valve tip 304 b is in a position extending outward from the side surface of the hook rib 303.

  The hook valve 304 becomes thinner from the hook valve root 304a connected to the hook head 302 toward the hook valve tip 304b. The hook valve tip 202b has two side surfaces 304c and 304d forming a predetermined angle (hook valve angle α). The hook valve angle α is an acute angle.

  A hook angle θ1 that is an angle formed by the side surface 304d of the hook valve 304 and the outer surface 303b of the hook rib 303 is an obtuse angle.

  Similar to the first embodiment, the hook 301 is made of an elastic member integrally formed with a resin molded product forming the exterior cover 101d. As this elastic member, an elastomer member, a silicon rubber member, or another rubber member can be used.

  Next, the state of the hook 301 when the battery cover 110 (exterior cover 110d) in the second embodiment is fitted to the front cover 107 will be described with reference to FIGS.

  6B, when the battery cover 110 is attached to the front cover 107 of the second casing 102 in a direction perpendicular to the surface on which the elastic member 110c of the exterior cover 110d is formed, the hook 301 of the battery cover 110 is attached to the front cover. 107 is contacted. At this time, the hook rib 303 is bent and deformed in the direction in which the hook angle θ2 is reduced while the upper surface 302b (see FIG. 6C) of the hook head 302 and the front cover 107 are in close contact with each other.

  6A, when the fitting claw 107a of the battery cover 110 is completely fitted into the fitting groove 107b of the front cover 107, the upper surface 302b (see FIG. 6C) of the hook head 302, the front cover 107, and the hook The side surface 304d of the valve tip 304b and the exterior cover 110d are brought into close contact with each other.

  As in the first embodiment, the elastic force in the case of the seal member 10c (FIGS. 14A and 14B) according to the related art of the present invention is compressed by the repulsive force of the hook rib 303 for maintaining the above-mentioned close contact state. This is sufficiently small compared to the repulsive force generated. Therefore, when using the hook 301 of this embodiment, it is not necessary to arrange the metal intermediate plate 10b (FIG. 14B) in the related art of the present invention between the front cover 107 and the hook 301.

  Further, as in the first embodiment described above, the metal intermediate plate 10b is not necessary, so that the thickness of the portion formed by fitting the front cover 7 and the battery cover 10d in the second housing of the portable electronic device is reduced. As a result, the weight of the portable electronic device is reduced.

  Note that the hook 301 in this embodiment may have one or more hook valves 304 that serve as stoppers for bending the hook 301. The shape of the hook valve 304 may be any shape such as a triangle, a square, a circle, an ellipse, or a polygon as viewed in the cross section shown in FIG. 6C.

(Other embodiment examples)
FIG. 7A schematically shows the arrangement and shape of the components in the first embodiment. The components of the first casing 101 are a front panel 101a, a front cover 101b, a rear cover 101c, a flexible 112, etc., and the components of the second casing 102 are a key sheet 114, a front cover 107, a rear cover 108, A battery cover 110, an I / O cover 113, and the like.

  7A, the rear cover 108 of the second housing 102 is located entirely in the second housing 102, and the battery cover 110 is the rear cover. This is the configuration under 108. In FIG. 7C, the rear cover 108 of the second housing 102 is eliminated, and the battery cover 110 is under the front cover 107.

  The hooks 201 and 301 of the first or second embodiment described above are configured between the front cover 107 and the rear cover 108 of the second housing 102, between the front cover 107 and the battery cover 110, and the front thereof. It can be applied to a gap between the cover 107 and the I / O cover 113. In addition, those hook structures are provided between the front cover 101b and the front panel 101a of the first casing 101, between the front cover 101b and the rear cover 101c, and between the front cover 107 and the key sheet 114 of the second casing 102. It is also applicable to the gaps between them. Furthermore, the hooks 201 and 301 can also be applied to an elastic body connected to the flex 112 that electrically connects the first housing 101 and the second housing 102.

  Even in such an application place, the bending operations of the hooks 201 and 301 are the same as those in the first and second embodiments.

  In the first and second embodiments described above, the operation when the battery cover 110 is fitted to the front cover 107 is a sliding operation (see FIGS. 5A to 5C). The method of fitting the two members that sandwich the sword is not limited to the method using the slide operation (slide fitting). For example, a method of completing the fitting in FIG. 5B (vertical fitting) or another fitting method (for example, oblique fitting) may be used. However, slide fitting is superior to other methods in terms of ease of fitting and ease of removal.

  Further, in each of the above-described embodiments, the hook valve tips 202b and 304b of the hooks 201 and 301 may face the inner side 200 of the casing instead of the outer side of the casing. Further, the hook angle θ may be a right angle.

  Further, in the portions constituting the hooks 201 and 301 in each of the above-described embodiments, the hook ribs 203 and 303 are made of a hard member such as resin or metal, and only the hook valves 202 and 304 and the hook head 302 are bent. The part may be made of an elastic member.

  In the case of the above slide fitting, the portions corresponding to the two sides intersecting the slide direction S of the annular elastic member 110c having approximately four sides as shown in FIG. With such a structure, when the battery cover 110 is slid, the hooks 201 and 301 may turn over and be separated from the front cover 107.

  Therefore, the portion T corresponding to the two sides intersecting the sliding direction S of the annular elastic member 110c is preferably formed in any of the shapes shown in FIGS. 9B, 10B, 11, and 12. Needless to say, the elastic member 110c is formed in the shape of the hook 201 or 301 in the portion U corresponding to the two sides along the sliding direction S as in the above-described embodiments.

  9A and 9B, the hook valve 202 of the hook 201 of the first embodiment not only extends toward the outside of the housing but also faces toward the inside 200 of the housing in order to prevent the above-described turning at the time of sliding. Is also formed. In the example of FIGS. 10A and 10B, a plurality of plate-like elastic ribs are arranged in the region T along two sides intersecting the sliding direction S. 11 and 12, the elastic member 110c in the above-described region T may be a member whose cross section has a mountain shape or a semicircular shape.

“Industrial Applicability”
In the first and second embodiments described above, a folding mobile phone is taken as an example of a portable electronic device, but a portable smartphone, a portable game machine, a portable computer, a portable music player, a desktop computer, The waterproof seal structure of the present invention can be applied to various remote controllers such as TV / video / cooler and other portable electronic devices.

101 First housing 101a Front panel 101b Front cover 101c Rear cover 102 Second housing 103 Hinge 104 Main display section 105 Key 106 Sub display screen 107 Front cover 107a Fitting claw 107b Fitting groove 108 Rear cover 109 Camera 110 Battery cover 110a Guide claw 110c Elastic member 110d Exterior cover 111 Battery 112 Flexible 113 I / O cover 114 Key sheet 200 Housing inside 201 Hook 201 Hook valve 202a Hook valve root 202b Hook valve tip 202c Outer side 202d Inner side 203 Hook rib 203a Outer side 203b Inner surface α Hook valve angle θ, θ1, θ2 Hook angle 301 Hook 302 Hook head 302a Side surface 302b Upper surface 303 Hook rib 303a Inner surface 303b Outer surface 3 04 Hook valve 304a Hook valve root 304b Hook valve tip 304c, 304d Side

Claims (15)

A fitting portion that fits to each of the two members; and an elastic member provided on one of the two faces of the two members that face each other. A waterproof structure that forms a sealed waterproof space by sandwiching the elastic member between the two members,
The waterproof structure according to claim 1, wherein a tip of the elastic member is positioned outside an outer periphery of a bottom surface of the elastic member joined to the one surface when viewed from a direction in which the elastic member is sandwiched.   The waterproof structure according to claim 1, wherein the elastic member sandwiched when the two members are fitted is elastically deformed by bending. The elastic member includes a continuous rib formed on the one surface, and a hook valve having two side surfaces respectively connected to an inner surface and an outer surface of the annular rib,
3. The waterproof structure according to claim 1, wherein the hook valve is located at a position where a distal end portion extends outwardly between an inner surface and an outer surface of the rib. The elastic member includes a hook head having a continuous ring-shaped rib on the one surface, a side surface connected to the inner or outer surface of the annular rib, and an upper surface connected to the side surface. A hook valve having two side surfaces respectively connected to an inner side surface or an outer side surface of the hook head to which the side surfaces are not connected and an upper surface of the hook head;
3. The waterproof structure according to claim 1, wherein the hook valve is located at a position where a distal end portion extends outwardly between an inner surface and an outer surface of the rib.   The fitting portion has a structure of fitting by sliding one of the two members in one direction along the one surface after the elastic member is sandwiched between the two members. Item 5. The waterproof structure according to Item 3 or 4.   In the structure in which the two members are fitted by the sliding operation in one direction, the hook valve located on a portion of the rib extending in a direction crossing the one direction is fitted to the two members. The waterproof structure according to claim 5, wherein the waterproof structure includes the tip portion extending to a side opposite to a sliding direction at the time of the alignment. The member provided with the elastic member is a resin molded product, and the elastic member is integrally formed with the resin molded product,
The waterproof structure according to any one of claims 1 to 6, wherein the elastic member is an elastomer member formed by mixing a rubber member with a resin member or a silicon rubber member.   The portable electronic device provided with the waterproof structure of any one of Claim 1 to 7. A waterproof method for forming a sealed waterproof space by sandwiching an elastic member between the two members when fitting the two members,
An elastic member is provided on one of the two opposing surfaces of the two members,
The elastic member is provided so that a distal end portion of the elastic member is positioned outside an outer periphery of a bottom surface of the elastic member joined to the one surface when viewed from a direction in which the elastic member is sandwiched. And waterproofing method.   The waterproofing method according to claim 9, wherein the elastic member is bent between the two members when the two members are fitted. The elastic member includes a continuous rib formed on the one surface, and a hook valve having two side surfaces respectively connected to an inner surface and an outer surface of the annular rib,
11. The waterproofing method according to claim 9, wherein the hook valve is located at a position where a tip portion extends outwardly between the inner surface and the outer surface of the rib. The elastic member includes a hook head having a continuous ring-shaped rib on the one surface, a side surface connected to the inner or outer surface of the annular rib, and an upper surface connected to the side surface. A hook valve having two side surfaces respectively connected to an inner side surface or an outer side surface of the hook head to which the side surfaces are not connected and an upper surface of the hook head;
11. The waterproofing method according to claim 9, wherein the hook valve is located at a position where a tip portion extends outwardly between the inner surface and the outer surface of the rib.   The two members are fitted by sliding one of the two members in one direction along the one surface after the elastic member is sandwiched between the two members. 12. The waterproofing method according to 12.   In the case where the two members are fitted by the sliding movement in the one direction, in the hook valve located on a portion of the rib extending in a direction crossing the one direction, the fitting of the two members The waterproofing method according to claim 13, wherein the tip portion that extends in a direction opposite to the sliding direction is provided. The member provided with the elastic member is a resin molded product, and the elastic member is integrally formed with the resin molded product,
The waterproof method according to claim 9, wherein the elastic member is an elastomer member obtained by mixing a rubber member with a resin member, or a silicon rubber member.