JP2005091319A

JP2005091319A - Waterproof structure

Info

Publication number: JP2005091319A
Application number: JP2003328913A
Authority: JP
Inventors: Takashi Horikoshi; たかし堀越; Yuji Doi; 裕治土居
Original assignee: Casio Computer Co Ltd
Current assignee: Casio Computer Co Ltd
Priority date: 2003-09-19
Filing date: 2003-09-19
Publication date: 2005-04-07

Abstract

<P>PROBLEM TO BE SOLVED: To ensure water proofing property and airtightness without enlarging the whole fitting part. <P>SOLUTION: When a packing 14 is arranged in a fitting part 12 where the respective peripheral parts of the antenna housing part 9 and cover panel 10 of a watch case 1 are mutually fitted, and a fitting protruding part 15 and a fitting recessed part 16 in the fitting part 12 are mutually fitted, the flat part 19 of a first packing part 17 and a second packing part 18 having a substantially circular sectional shape are nipped between the top end surface of the fitting protruding part 15 and the bottom of the fitting ressessed part 16 opposed thereto, and the side surface part 20 of the first packing part 17 is nipped between the side surface of the fitting protruding party 15 and the side surface of the fitting recessed part 16 on the fixing part 13 side. Accordingly, even if the resin of the fixing part 13 is melted, its flow to the closely fitting surface of the second packing part 18 within the fitting part 12 can be prevented by the side surface part 20 of the first packing part 17. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

この発明は、電子腕時計や携帯電話機などの電子機器における防水構造に関する。 The present invention relates to a waterproof structure in an electronic device such as an electronic wristwatch or a mobile phone.

従来、電子腕時計においては、アンテナを内蔵した電波時計がある。この種の電子腕時計は、内蔵したアンテナで基準時刻の電波を受信して時刻を自動的に修正するものであり、アンテナで電波を受信するために、合成樹脂製の腕時計ケースを備え、この腕時計ケースの一部、例えば１２時側の一部を側方に延出させ、この延出部にアンテナを収納するアンテナ収納部を上側に開口させて設け、このアンテナ収納部にこれを塞ぐ合成樹脂製のカバー部材を超音波溶着によって固着することにより、防水性を図ってアンテナを保護するように構成したものがある。 Conventionally, there is a radio timepiece with an antenna built in an electronic wristwatch. This type of electronic wristwatch automatically corrects the time by receiving a radio wave at a reference time with a built-in antenna, and is equipped with a wristwatch case made of synthetic resin to receive the radio wave with the antenna. A part of the case, for example, a part on the 12 o'clock side is extended to the side, and an antenna housing part for housing the antenna is provided on the extension part so that the antenna housing part is opened on the upper side. Some cover members are made to adhere to each other by ultrasonic welding so that the antenna is protected by waterproofing.

このような電子腕時計では、落下などの衝撃に対するカバー部材の強度を確保するため、カバー部材としてガラス繊維を混入した合成樹脂を用いる必要があり、このような場合には、超音波溶着でカバー部材の周縁部をアンテナ収納部の周縁部に固着しただけでは防水性が確保できないため、アンテナ収納部の周縁部とカバー部材の周縁部とが互いに嵌合する嵌合部の間にパッキンを設けている。 In such an electronic wristwatch, it is necessary to use a synthetic resin mixed with glass fiber as a cover member in order to ensure the strength of the cover member against an impact such as dropping. In such a case, the cover member is formed by ultrasonic welding. Since the waterproof property cannot be secured only by fixing the peripheral edge of the antenna housing to the peripheral edge of the antenna housing portion, a packing is provided between the fitting portions where the peripheral edge portion of the antenna housing portion and the peripheral edge portion of the cover member are fitted to each other. Yes.

しかしながら、このような電子腕時計では、カバー部材の周縁部とアンテナ収納部の周縁部とが互いに嵌合する嵌合部の一部を超音波溶着するときに、溶け出した樹脂が嵌合部内におけるパッキンの密着面に流れ込むと、この流れ込んだ樹脂によってパッキンによる防水性および気密性が低下し、十分な防水性および気密性を確保することができないという問題がある。 However, in such an electronic wrist watch, when the part of the fitting part in which the peripheral part of the cover member and the peripheral part of the antenna housing part are fitted to each other is ultrasonically welded, the melted resin is contained in the fitting part. When it flows into the tight contact surface of the packing, there is a problem that the waterproofness and airtightness due to the packing are lowered by the resin that flows in, and sufficient waterproofness and airtightness cannot be secured.

なお、このような問題を防ぐため、カバー部材の周縁部とアンテナ収納部の周縁部とが互いに嵌合する嵌合部に、超音波溶着時に溶け出した樹脂がパッキンの密着面に流れ込むのを防ぐ防御壁部を一体に形成した構造のものもあるが、このような構造では、防御壁部によって嵌合部の幅方向における厚みが厚くなり、嵌合部全体が大きくなるという問題がある。
特開２００２−９８７８０号公報 In order to prevent such a problem, the resin melted at the time of ultrasonic welding flows into the contact surface of the packing into the fitting portion where the peripheral portion of the cover member and the peripheral portion of the antenna housing portion are fitted to each other. Although there exists a thing of the structure which formed the defense wall part to prevent integrally, in such a structure, the thickness in the width direction of a fitting part becomes thick with a defense wall part, and there exists a problem that the whole fitting part becomes large.
JP 2002-98780 A

この発明が解決しようとする問題点は、嵌合部全体が大きくならずに、防水性および気密性を確保することができない点にある。 The problem to be solved by the present invention is that the entire fitting portion is not enlarged and waterproof and airtightness cannot be secured.

この発明は、上記課題を解決するために、次のような構成要素を備えている。
なお、各構成要素には、後述する各実施形態の項で説明される各要素に付されている図面の参照番号などを括弧と共に付す。 In order to solve the above problems, the present invention includes the following components.
In addition, the reference numerals of the drawings attached to the respective elements described in the section of each embodiment described later are attached to the respective constituent elements together with parentheses.

請求項１に記載の発明は、図１〜図５に示すように、部品収納部（アンテナ収納部９）を有する合成樹脂製のケース（腕時計ケース１）と、このケースの前記部品収納部を塞ぐ合成樹脂製のカバー部材（カバーパネル１０）と、前記部品収納部の周縁部と前記カバー部材の周縁部とに設けられて互いに嵌合する嵌合部（１２）と、この嵌合部の一部が溶着によって固着される固着部（１３）と、前記嵌合部の間に配置されるパッキン（１４）とを備え、
前記嵌合部は、前記部品収納部の周縁部と前記カバー部材の周縁部との一方に設けられた嵌合凸部（１５）と、その他方に設けられた嵌合凹部（１６）とからなり、前記パッキンは、前記嵌合凸部の先端面とこれに対向する前記嵌合凹部の底面との間に配置される平面部（１９）、および前記固着部側に位置する前記嵌合凸部の側面とこれに対向する前記嵌合凹部の側面との間に配置される側面部（２０）を一体に形成した断面形状がほぼＬ字状の第１パッキン部（１７）と、この第１パッキン部の前記平面部に一体に形成された断面形状がほぼ円形状の第２パッキン部（１８）とからなることを特徴する防水構造である。 As shown in FIGS. 1 to 5, the invention described in claim 1 includes a synthetic resin case (watch case 1) having a component storage portion (antenna storage portion 9) and the component storage portion of the case. A cover member (cover panel 10) made of synthetic resin for closing, a fitting portion (12) provided on the peripheral edge portion of the component storage portion and the peripheral edge portion of the cover member, and fitted to each other; A fixing portion (13) partially fixed by welding, and a packing (14) disposed between the fitting portions;
The fitting portion includes a fitting convex portion (15) provided on one of the peripheral edge portion of the component storage portion and the peripheral edge portion of the cover member, and a fitting concave portion (16) provided on the other side. The packing includes a flat portion (19) disposed between a front end surface of the fitting convex portion and a bottom surface of the fitting concave portion facing the fitting convex portion, and the fitting convex portion located on the fixing portion side. A first packing part (17) having a substantially L-shaped cross-sectional shape integrally formed with a side part (20) disposed between a side face of the part and a side face of the fitting recess facing the first part, The waterproof structure is characterized by comprising a second packing part (18) having a substantially circular cross-section formed integrally with the flat part of one packing part.

請求項２に記載の発明は、図６および図７に示すように、部品収納部（アンテナ収納部９）を有する合成樹脂製のケース（腕時計ケース１）と、このケースの前記部品収納部を塞ぐ合成樹脂製のカバー部材（カバーパネル１０）と、前記部品収納部の周縁部と前記カバー部材の周縁部とに設けられて互いに嵌合する嵌合部（４０）と、この嵌合部の一部が溶着によって固着される固着部（４１）と、前記嵌合部の間に配置される断面形状がほぼ円形状のパッキン（４２）とを備え、
前記嵌合部は、前記部品収納部の周縁部と前記カバー部材の周縁部との一方に設けられた嵌合凸部（４３）と、その他方に設けられた嵌合凹部（４４）とからなり、前記固着部側における前記嵌合凸部の側面には凸側段差部（４５）が設けられ、これに対向する前記嵌合凹部の側面には前記凸側段差部の一部に食い込んで密着する凹側段差部（４６）が設けられていることを特徴する防水構造である。 As shown in FIGS. 6 and 7, the invention described in claim 2 includes a synthetic resin case (watch case 1) having a component storage portion (antenna storage portion 9) and the component storage portion of the case. A cover member (cover panel 10) made of synthetic resin for closing, a fitting portion (40) provided on the peripheral edge portion of the component storage portion and the peripheral edge portion of the cover member, and fitted to each other; A fixing portion (41) partially fixed by welding, and a packing (42) having a substantially circular cross-section disposed between the fitting portions;
The fitting part includes a fitting convex part (43) provided on one of the peripheral part of the component storage part and the peripheral part of the cover member, and a fitting concave part (44) provided on the other side. A convex-side stepped portion (45) is provided on the side surface of the fitting convex portion on the fixing portion side, and a part of the convex-side stepped portion is bitten into the side surface of the fitting concave portion opposed thereto. It is a waterproof structure characterized in that a concave-side step portion (46) that is in close contact is provided.

請求項３に記載の発明は、図８〜図１３に示すように、部品収納部（アンテナ収納部９）を有する合成樹脂製のケース（腕時計ケース１）と、このケースの前記部品収納部を塞ぐ合成樹脂製のカバー部材（カバーパネル１０）と、前記部品収納部の周縁部と前記カバー部材の周縁部とに設けられて互いに嵌合する嵌合部（５０、６０、７０）と、この嵌合部の一部が溶着によって固着される固着部（５１、６１、７１）と、前記嵌合部の間に配置されるパッキンと（４１、６２、７２）を備え、
前記嵌合部は、前記部品収納部の周縁部と前記カバー部材の周縁部との一方に設けられた嵌合凸部（５２、６３、７３）と、その他方に設けられた嵌合凹部（５３、６４、７４）とからなり、前記嵌合凸部の先端面とこれに対向する前記嵌合凹部の底面とのうち、少なくとも前記嵌合凸部の先端面には前記パッキンが食い込むほぼＶ字形状の溝部（５４、７５）が設けられていることを特徴する防水構造である。 As shown in FIGS. 8 to 13, the invention according to claim 3 includes a synthetic resin case (watch case 1) having a component storage portion (antenna storage portion 9) and the component storage portion of the case. A cover member (cover panel 10) made of synthetic resin for closing, a fitting portion (50, 60, 70) provided on the peripheral portion of the component storage portion and the peripheral portion of the cover member to be fitted to each other; A fixing portion (51, 61, 71) to which a part of the fitting portion is fixed by welding, and a packing (41, 62, 72) disposed between the fitting portions,
The fitting part includes a fitting convex part (52, 63, 73) provided on one of the peripheral part of the component storage part and the peripheral part of the cover member, and a fitting concave part (52, 63, 73) provided on the other side. 53, 64, 74), and the packing bites into at least the front end surface of the fitting convex portion among the front end surface of the fitting convex portion and the bottom surface of the fitting concave portion opposed thereto. It is a waterproof structure characterized by the provision of letter-shaped grooves (54, 75).

請求項４に記載の発明は、図１０および図１１に示すように、前記パッキン（６２）が、前記嵌合凸部（６３）の先端面とこれに対向する前記嵌合凹部（６４）の底面との間に配置される平面部（１９）、および前記固着部（６１）側における前記嵌合凸部の側面と前記嵌合凹部の側面との間に配置される側面部（２０）を一体に形成した断面形状がほぼＬ字状の第１パッキン部（１７）と、この第１パッキン部の前記平面部に一体に形成された断面形状がほぼ円形状の第２パッキン部（１８）とからなることを特徴する請求項３に記載の防水構造である。 In the invention according to claim 4, as shown in FIGS. 10 and 11, the packing (62) has a front end surface of the fitting convex portion (63) and the fitting concave portion (64) opposed thereto. A flat surface portion (19) disposed between the bottom surface and a side surface portion (20) disposed between the side surface of the fitting convex portion and the side surface of the fitting concave portion on the fixing portion (61) side. A first packing portion (17) having a substantially L-shaped cross section formed integrally with a second packing portion (18) having a substantially circular cross section formed integrally with the flat portion of the first packing portion. The waterproof structure according to claim 3, comprising:

請求項５に記載の発明は、図１２および図１３に示すように、前記パッキン（７２）が、断面ほぼ円形状に形成され、前記固着部（７１）側における前記嵌合凸部（７３）の側面には凸側段差部（７６）が設けられ、これに対向する前記嵌合凹部（７４）の側面には前記凸側段差部の一部に食い込んで密着する凹側段差部（７７）が設けられていることを特徴する請求項３に記載の防水構造である。 In the invention according to claim 5, as shown in FIGS. 12 and 13, the packing (72) is formed in a substantially circular cross section, and the fitting convex portion (73) on the fixing portion (71) side. A convex-side stepped portion (76) is provided on the side surface of the concave portion, and a concave-side stepped portion (77) that bites into and closely contacts a part of the convex-side stepped portion on the side surface of the fitting concave portion (74) facing the convex-shaped stepped portion (76) The waterproof structure according to claim 3, wherein the waterproof structure is provided.

請求項１に記載の発明によれば、ケースの部品収納部の周縁部とカバー部材の周縁部とが互いに嵌合する嵌合部の間にパッキンを配置して、嵌合部の嵌合凸部と嵌合凹部とを嵌合させるときに、第１パッキン部の平面部とこの平面部に一体に形成された断面ほぼ円形状の第２パッキン部とが、嵌合凸部の先端面とこれに対向する嵌合凹部の底面との間に挟み付けられると共に、第１パッキン部の側面部が固着部側における嵌合凸部の側面と嵌合凹部の側面との間に挟み付けられるので、この状態で嵌合部の固着部を溶着によって固着するときに、その固着部の樹脂が溶け出しても、固着部側における嵌合凸部の側面と嵌合凹部の側面との間に挟み付けられた第１パッキン部の側面部によって、溶け出した樹脂が第２パッキン部の密着面に流れ込むのを防ぐことができ、これにより防水性および気密性を確保することができる。 According to the first aspect of the present invention, the packing is disposed between the fitting portions in which the peripheral portion of the component housing portion of the case and the peripheral portion of the cover member are fitted to each other, and the fitting protrusion of the fitting portion is arranged. When the portion and the fitting concave portion are fitted, the flat portion of the first packing portion and the second packing portion having a substantially circular cross section formed integrally with the flat portion are connected to the tip surface of the fitting convex portion. Because it is sandwiched between the bottom surface of the fitting recess facing this, and the side surface portion of the first packing portion is sandwiched between the side surface of the fitting convex portion and the side surface of the fitting recess on the fixing portion side. In this state, when the fixing portion of the fitting portion is fixed by welding, even if the resin of the fixing portion melts, the fixing portion is sandwiched between the side surface of the fitting convex portion and the side surface of the fitting concave portion. The melted resin flows to the close contact surface of the second packing portion by the side surface portion of the attached first packing portion. Takeno can be prevented, thereby ensuring the waterproofness and airtightness.

この場合には、特に第１パッキン部が、嵌合凸部の先端面とこれに対向する嵌合凹部の底面との間に挟み付けられる平面部と、固着部側における嵌合凸部の側面と嵌合凹部の側面との間に挟み付けられる側面部とからなり、この側面部で第２パッキン部の密着面への樹脂の流れ込みを防いでいるので、従来例のようにカバー部材の周縁部とアンテナ収納部の周縁部とが互いに嵌合する嵌合部に、パッキンの密着面への樹脂の流れ込みを防ぐ防御壁部を設ける必要がない。このため、嵌合部の形状が簡単になり、その製作も容易になるばかりか、従来例に比べて嵌合部全体の幅方向における厚みを薄くすることができると共に、嵌合凸部と嵌合凹部との食い込み量（被り量）をも小さくすることができ、これにより嵌合部全体を小さくすることができる。 In this case, in particular, the first packing portion is sandwiched between the front end surface of the fitting convex portion and the bottom surface of the fitting concave portion facing this, and the side surface of the fitting convex portion on the fixing portion side. And a side surface portion sandwiched between the side surface of the fitting recess and the side surface portion prevents the resin from flowing into the contact surface of the second packing portion. It is not necessary to provide a protective wall portion for preventing the resin from flowing into the tight contact surface of the packing at the fitting portion where the portion and the peripheral portion of the antenna housing portion are fitted to each other. For this reason, the shape of the fitting portion is simplified and the manufacture thereof is facilitated, and the thickness of the entire fitting portion in the width direction can be reduced as compared with the conventional example, and the fitting convex portion and the fitting portion are fitted. The amount of biting (covering amount) with the mating recess can also be reduced, whereby the entire fitting portion can be reduced.

請求項２に記載の発明によれば、ケースの部品収納部の周縁部とカバー部材の周縁部とが互いに嵌合する嵌合部の間に断面ほぼ円形状のパッキンを配置して、嵌合部の嵌合凸部と嵌合凹部とを嵌合させると、固着部側に位置する嵌合凸部の凸側段差部の一部に嵌合凹部の凹側段差部が食い込んで密着し、この状態で嵌合部の固着部を溶着によって固着するときに、その固着部の樹脂が溶け出しても、凸側段差部の一部に凹側段差部が食い込んで密着していることにより、溶け出した樹脂がパッキンの密着面に流れ込むのを防ぐことができ、これにより防水性および気密性を確保することができる。 According to the second aspect of the present invention, the packing having a substantially circular cross section is disposed between the fitting portions in which the peripheral edge portion of the component housing portion of the case and the peripheral edge portion of the cover member are fitted to each other. When the fitting convex part and the fitting concave part of the part are fitted, the concave side step part of the fitting concave part bites into and closely adheres to a part of the convex side step part of the fitting convex part located on the fixed part side, In this state, when fixing the fixing portion of the fitting portion by welding, even if the resin of the fixing portion melts, the concave stepped portion bites into and adheres to a part of the convex stepped portion, It is possible to prevent the melted resin from flowing into the tight contact surface of the packing, thereby ensuring waterproofness and airtightness.

この場合にも、嵌合凸部と嵌合凹部とを嵌合させると、固着部側における嵌合凸部の側面に設けられた凸側段差部の一部に嵌合凹部の凹側段差部が食い込んで密着して、パッキンの密着面への樹脂の流れ込みを防いでいるので、従来例のようにカバー部材の周縁部とアンテナ収納部の周縁部とが互いに嵌合する嵌合部に、パッキンの密着面への樹脂の流れ込みを防ぐ防御壁部を設ける必要がない。このため、従来例に比べて嵌合部の幅方向における厚みを薄くすることができると共に、嵌合凸部と嵌合凹部との食い込み量（被り量）をも小さくすることができ、これにより嵌合部全体を小さくすることができる。 Also in this case, when the fitting convex portion and the fitting concave portion are fitted, the concave step portion of the fitting concave portion is formed on a part of the convex step portion provided on the side surface of the fitting convex portion on the fixing portion side. Since it bites in and closely adheres to prevent the resin from flowing into the tight contact surface of the packing, the peripheral portion of the cover member and the peripheral portion of the antenna storage portion are fitted to each other as in the conventional example, There is no need to provide a protective wall portion that prevents the resin from flowing into the tight contact surface of the packing. For this reason, the thickness in the width direction of the fitting portion can be reduced as compared with the conventional example, and the amount of biting (covering amount) between the fitting convex portion and the fitting concave portion can be reduced. The whole fitting part can be made small.

請求項３に記載の発明によれば、ケースの部品収納部の周縁部とカバー部材の周縁部とが嵌合する嵌合部の間にパッキンを配置して、嵌合部の嵌合凸部と嵌合凹部とを嵌合させると、嵌合凸部の先端面とこれに対向する嵌合凹部の底面とのうち、少なくとも嵌合凸部の先端面に設けられたほぼＶ字形状の溝部にパッキンが食い込むので、パッキンをほぼＶ字形状の溝部内における対向面にそれぞれ圧接させることができる。この状態で、嵌合部の固着部を溶着によって固着するときに、その固着部の樹脂が溶け出して嵌合部内のパッキン部分に流れ込んでも、パッキンがほぼＶ字形状の溝部内における対向面の両方にそれぞれ圧接していることにより、防水性および気密性を確保することができる。 According to the third aspect of the present invention, the packing is disposed between the fitting portion in which the peripheral portion of the component storage portion of the case and the peripheral portion of the cover member are fitted, and the fitting convex portion of the fitting portion. When the fitting recess and the fitting recess are fitted, a substantially V-shaped groove provided on at least the tip surface of the fitting projection among the tip surface of the fitting projection and the bottom surface of the fitting recess facing the fitting projection. Since the packing bites into each other, the packing can be brought into pressure contact with the opposing surfaces in the substantially V-shaped groove. In this state, when the fixing portion of the fitting portion is fixed by welding, even if the resin of the fixing portion is melted and flows into the packing portion in the fitting portion, the packing of the opposing surface in the substantially V-shaped groove portion By being in pressure contact with both, waterproofness and airtightness can be ensured.

この場合にも、嵌合部における少なくとも嵌合凸部の先端面に設けられたほぼＶ字形状の溝部にパッキンを食い込ませて防水性および気密性を確保しているので、従来例のようにカバー部材の周縁部とアンテナ収納部の周縁部とが互いに嵌合する嵌合部に、パッキンの密着面への樹脂の流れ込みを防ぐ防御壁部を設ける必要がない。このため、請求項１に記載の発明と同様、嵌合部の形状が簡単になり、その製作も容易になるばかりか、請求項１に記載の発明よりも嵌合部の幅方向における厚みを薄くすることができると共に、嵌合凸部と嵌合凹部との食い込み量（被り量）をも小さくすることができ、これにより嵌合部全体を、より一層、小さくすることができる。 Also in this case, since the packing is bitten into the substantially V-shaped groove portion provided on at least the front end surface of the fitting convex portion in the fitting portion to ensure waterproofness and airtightness, as in the conventional example There is no need to provide a protective wall portion for preventing the resin from flowing into the tight contact surface of the packing at the fitting portion where the peripheral portion of the cover member and the peripheral portion of the antenna housing portion are fitted to each other. For this reason, as in the invention described in claim 1, not only the shape of the fitting portion is simplified and the manufacture thereof is facilitated, but also the thickness in the width direction of the fitting portion is greater than that of the invention described in claim 1. While being able to make it thin, the amount of biting (covering amount) between the fitting convex part and the fitting concave part can also be reduced, whereby the whole fitting part can be further reduced.

請求項４に記載の発明によれば、請求項３に記載の発明と同様、パッキンがほぼＶ字形状の溝部内における対向面の両方にそれぞれ圧接することにより、防水性および気密性を確保することができるほか、特に嵌合部の嵌合凸部と嵌合凹部との間にパッキンを配置して、嵌合部の嵌合凸部と嵌合凹部とを嵌合させると、第１パッキン部の平面部と断面ほぼ円形状の第２パッキン部とが、嵌合凸部の先端面とこれに対向する嵌合凹部の底面との間に挟み付けられると共に、第１パッキン部の側面部が固着部側における嵌合凸部の側面と嵌合凹部の側面との間に挟み付けられるので、嵌合部の固着部を溶着によって固着するときに、その固着部の樹脂が溶け出しても、請求項１に記載の発明と同様、第１パッキン部の側面部によって、溶け出した樹脂が第２パッキン部の密着面に流れ込むのを防ぐことができ、これによっても防水性および気密性を確保することができるので、より一層、防水性および気密性の高いものを得ることができる。 According to the invention described in claim 4, as in the invention described in claim 3, waterproofing and airtightness are ensured by the packing being pressed against both of the opposing surfaces in the substantially V-shaped groove. In addition, when the packing is arranged between the fitting convex part and the fitting concave part of the fitting part and the fitting convex part and the fitting concave part of the fitting part are fitted, the first packing And the side surface portion of the first packing portion is sandwiched between the front end surface of the fitting convex portion and the bottom surface of the fitting concave portion facing the second packing portion. Is sandwiched between the side surface of the fitting convex portion and the side surface of the fitting concave portion on the fixing portion side, so that when the fixing portion of the fitting portion is fixed by welding, even if the resin of the fixing portion melts In the same manner as in the invention described in claim 1, the melted out by the side surface portion of the first packing portion. It is possible to prevent the oil from flowing into the close contact surface of the second packing part, and this can also ensure waterproofness and airtightness, so that a further waterproof and airtight thing can be obtained. .

請求項５に記載の発明によれば、請求項３に記載の発明と同様、パッキンがほぼＶ字形状の溝部内における対向面の両方にそれぞれ圧接することにより、防水性および気密性を確保することができるほか、特に嵌合部の嵌合凸部と嵌合凹部とを嵌合させると、固着部側に位置する嵌合凸部の凸側段差部の一部に嵌合凹部の凹側段差部が食い込んで密着するので、請求項２に記載の発明と同様、嵌合部の固着部を溶着によって固着するときに、その固着部の樹脂が溶け出しても、溶け出した樹脂がパッキン部の密着面に流れ込むのを防ぐことができ、これによっても防水性および気密性を確保することができるので、より一層、防水性および気密性の高いものを得ることができる。 According to the invention described in claim 5, as in the invention described in claim 3, waterproofing and airtightness are ensured by the packing being pressed against both of the opposing surfaces in the substantially V-shaped groove. In addition, when the fitting convex part and the fitting concave part of the fitting part are fitted, the concave side of the fitting concave part is part of the convex step part of the fitting convex part located on the fixing part side. Since the stepped portion bites into and comes into close contact with the fitting portion, when the fixing portion of the fitting portion is fixed by welding, even if the resin of the fixing portion melts out, the melted resin remains in the packing. It can be prevented from flowing into the close contact surface of the part, and this can also ensure waterproofness and airtightness, so that it is possible to obtain a further waterproof and airtight thing.

（実施形態１）
以下、図１〜図５を参照して、この発明を電子腕時計に適用した実施形態１について説明する。
図１は電子腕時計の正面図、図２はそのＡ−Ａ矢視における拡大断面図である。
この電子腕時計は、図１および図２に示すように、合成樹脂製の腕時計ケース１を備えている。この腕時計ケース１の上面における外周部には、図１に示すように、ベゼル２が装着されており、この腕時計ケース１の上面における中央部には、時計ガラス３が溶着によって取り付けられている。また、この腕時計ケース１の内部には、図２に示すように、時計モジュール４が収納されており、この腕時計ケース１の下面には、裏蓋５が防水リング６を介して取り付けられている。 (Embodiment 1)
A first embodiment in which the present invention is applied to an electronic wristwatch will be described below with reference to FIGS.
FIG. 1 is a front view of the electronic wristwatch, and FIG. 2 is an enlarged cross-sectional view taken along the line AA.
As shown in FIGS. 1 and 2, the electronic wristwatch includes a wristwatch case 1 made of synthetic resin. As shown in FIG. 1, a bezel 2 is attached to the outer peripheral portion of the upper surface of the watch case 1, and a watch glass 3 is attached to the central portion of the upper surface of the watch case 1 by welding. Further, as shown in FIG. 2, a watch module 4 is housed inside the watch case 1, and a back cover 5 is attached to the lower surface of the watch case 1 via a waterproof ring 6. .

この腕時計ケース１の１２時側と６時側とには、図１に示すように、バンド取付部７がそれぞれ側方に突出した状態で一体に設けられている。これらバンド取付部７のうち、１２時側のバンド取付部７には、図２に示すように、アンテナ８を収納するアンテナ収納部９が上面側に開口されて設けられており、このアンテナ収納部９には、その内部に収納されたアンテナ８を保護するためのカバーパネル１０が超音波溶着によって取り付けられている。この場合、カバーパネル１０は、合成樹脂からなり、その一部つまり３時側（図１では右側）のほぼ半分程度がベゼル２に設けられた押え部１１によって覆われて保護されている。なお、アンテナ８は、アンテナ収納部９に収納された状態で、接続線８ａによって腕時計ケース１内の時計モジュール４と電気的に接続されている。 As shown in FIG. 1, band attaching portions 7 are integrally provided on the wristwatch case 1 at the 12 o'clock side and the 6 o'clock side in a state of projecting sideways. Among these band attaching portions 7, the 12 o'clock side band attaching portion 7 is provided with an antenna accommodating portion 9 for accommodating an antenna 8 opened on the upper surface side as shown in FIG. A cover panel 10 for protecting the antenna 8 housed in the part 9 is attached to the part 9 by ultrasonic welding. In this case, the cover panel 10 is made of synthetic resin, and a part thereof, that is, about half of the 3 o'clock side (right side in FIG. 1) is covered and protected by the presser portion 11 provided on the bezel 2. The antenna 8 is electrically connected to the timepiece module 4 in the wristwatch case 1 through the connection line 8a in a state where it is housed in the antenna housing portion 9.

ところで、アンテナ収納部９とカバーパネル１０との防水構造は、図３および図４に示すように、アンテナ収納部９とカバーパネル１０との各周縁部に設けられて互いに嵌合する嵌合部１２と、この嵌合部１２の互いに対応する一部が超音波溶着によって固着される固着部１３と、嵌合部１２の間に配置されるパッキン１４とを備えている。嵌合部１２は、図４に示すように、アンテナ収納部９の周縁部に設けられた嵌合凸部１５と、カバーパネル１０の周縁部に設けられた嵌合凹部１６とからなり、この嵌合凸部１５の突出した先端部における固着部１３側（図４では右側に位置する内側）の側面には、切欠き溝１５ａが設けられている。また、固着部１３は、嵌合凸部１５と嵌合凹部１６との内側下部（図４では右側下部）に位置し、その個所における両者が超音波溶着によって固着されるように構成されている。 By the way, as shown in FIGS. 3 and 4, the waterproof structure of the antenna housing portion 9 and the cover panel 10 is provided at each peripheral edge portion of the antenna housing portion 9 and the cover panel 10 to be fitted to each other. 12, a fixing portion 13 to which a part of the fitting portion 12 corresponding to each other is fixed by ultrasonic welding, and a packing 14 disposed between the fitting portions 12 are provided. As shown in FIG. 4, the fitting portion 12 includes a fitting convex portion 15 provided on the peripheral portion of the antenna housing portion 9 and a fitting concave portion 16 provided on the peripheral portion of the cover panel 10. A notch groove 15a is provided on the side surface of the protruding protrusion of the fitting protrusion 15 on the side of the fixing portion 13 (the inner side located on the right side in FIG. 4). Moreover, the adhering part 13 is located in the inner lower part (lower right part in FIG. 4) of the fitting convex part 15 and the fitting concave part 16, and is configured such that both of the parts are fixed by ultrasonic welding. .

また、パッキン１４は、図４に示すように、断面形状がほぼＬ字状の第１パッキン部１７と、断面形状がほぼ円形状の第２パッキン部１８とを、ゴムなどの合成樹脂によって一体に形成した構成になっている。すなわち、第１パッキン部１７は、嵌合部１２の嵌合凸部１５の先端面とこれに対向する前記嵌合凹部１６の底面との間に配置される平面部１９、および固着部１３側に位置する嵌合凸部１５の側面とこれに対向する嵌合凹部１６の側面との間に位置する切欠き溝１５ａ内に配置される側面部２０からなり、これら平面部１９と側面部２０とを一体に形成することにより、断面形状がほぼＬ字状に形成されている。第２パッキン部１８は、断面形状がほぼ円形状に形成され、第１パッキン部１７の平面部１９に一体に形成されている。 Further, as shown in FIG. 4, the packing 14 includes a first packing portion 17 having a substantially L-shaped cross-section and a second packing portion 18 having a substantially circular cross-sectional shape integrated with a synthetic resin such as rubber. It is the structure formed in. That is, the first packing portion 17 includes the flat portion 19 disposed between the front end surface of the fitting convex portion 15 of the fitting portion 12 and the bottom surface of the fitting concave portion 16 facing the fitting portion 12, and the fixing portion 13 side. The side surface portion 20 is disposed in the notch groove 15a positioned between the side surface of the fitting convex portion 15 located at the side and the side surface of the fitting concave portion 16 opposite to the side surface. Are integrally formed so that the cross-sectional shape is substantially L-shaped. The second packing part 18 has a substantially circular cross-sectional shape and is formed integrally with the flat part 19 of the first packing part 17.

このような電子腕時計におけるアンテナ収納部９とカバーパネル１０との防水構造では、腕時計ケース１の一部であるアンテナ収納部９とカバーパネル１０との各周縁部に設けられて互いに嵌合する嵌合部１２の間に、断面形状がほぼＬ字状の第１パッキン部１７と断面形状がほぼ円形状の第２パッキン部１８とからなるパッキン１４を配置して、嵌合部１２の嵌合凸部１５と嵌合凹部１６とを嵌合させると、第１パッキン部１７の平面部１９と断面ほぼ円形状の第２パッキン部１８とが嵌合凸部１５の先端面とこれに対向する嵌合凹部１６の底面との間に挟み付けられると共に、第１パッキン部１７の側面部２０が固着部１３側における嵌合凸部１５の側面と嵌合凹部１６の側面との間に位置する切欠き溝１５ａ内に挟み付けられる。 In such a waterproof structure of the antenna housing portion 9 and the cover panel 10 in the electronic wristwatch, the fitting is provided on each peripheral edge portion of the antenna housing portion 9 and the cover panel 10 which are a part of the watch case 1 and is fitted to each other. Between the joint portions 12, a packing 14 including a first packing portion 17 having a substantially L-shaped cross-section and a second packing portion 18 having a substantially circular cross-sectional shape is disposed, and the fitting portion 12 is fitted. When the convex portion 15 and the fitting concave portion 16 are fitted, the flat portion 19 of the first packing portion 17 and the second packing portion 18 having a substantially circular cross section face the tip surface of the fitting convex portion 15. The side portion 20 of the first packing portion 17 is positioned between the side surface of the fitting convex portion 15 and the side surface of the fitting concave portion 16 on the fixing portion 13 side. It is sandwiched in the notch groove 15a.

このため、この状態で合成樹脂製の腕時計ケース１の一部であるアンテナ収納部９と合成樹脂製のカバーパネル１０との嵌合部１２における固着部１３を超音波溶着によって固着するときに、その固着部１３の樹脂が溶け出しても、固着部１３側（図４では右側）に位置する嵌合凸部１５の側面と嵌合凹部１６の側面との間に設けられた切欠き溝１５ａ内に挟み付けられて密着した第１パッキン部１７の側面部２０によって、溶け出した樹脂が嵌合部１２内における第２パッキン部１８の密着面に流れ込むのを防ぐことができ、これにより第１、第２パッキン部１７、２０からなるパッキン１４によって防水性および気密性を確保することができる。 For this reason, when fixing the fixing part 13 in the fitting part 12 of the antenna housing part 9 and the synthetic resin cover panel 10 which are part of the synthetic resin watch case 1 in this state by ultrasonic welding, Even if the resin of the fixing portion 13 melts, the notch groove 15a provided between the side surface of the fitting convex portion 15 and the side surface of the fitting concave portion 16 located on the fixing portion 13 side (right side in FIG. 4). The side portion 20 of the first packing portion 17 that is sandwiched and closely adhered to the inside can prevent the melted resin from flowing into the contact surface of the second packing portion 18 in the fitting portion 12, thereby Waterproofness and airtightness can be ensured by the packing 14 including the first and second packing portions 17 and 20.

この場合、特に第１パッキン部１７が、嵌合凸部１５の先端面とこれに対向する嵌合凹部１６の底面との間に挟み付けられる平面部１９、および固着部１３側（図４では右側）に位置する嵌合凸部１５の側面と嵌合凹部１６の側面との間に位置する切欠き溝１５ａ内に挟み込まれて密着する側面部２０とからなり、この側面部２０で嵌合部１２内における第２パッキン部１８の密着面への樹脂の流れ込みを防いでいるので、従来例のものよりも、構造が簡単で、嵌合部１２全体を小さく形成することができる。 In this case, in particular, the first packing portion 17 is sandwiched between the front end surface of the fitting convex portion 15 and the bottom surface of the fitting concave portion 16 opposed thereto, and the fixing portion 13 side (in FIG. 4). The side surface 20 is sandwiched in the notch groove 15a located between the side surface of the fitting convex portion 15 located on the right side) and the side surface of the fitting concave portion 16, and is fitted by this side surface portion 20. Since the resin is prevented from flowing into the close contact surface of the second packing portion 18 in the portion 12, the structure is simpler than that of the conventional example, and the entire fitting portion 12 can be formed small.

すなわち、従来例では、図５に示すように、アンテナ収納部９とカバーパネル１０との各周縁部に設けられて互いに嵌合する嵌合部２５の嵌合凸部２６に、断面ほぼ円形状のパッキン２７が配置される凸部２８を設けると共に、この凸部２８の固着部２９側にその上方へ更に突出する防御壁部３０を設け、この嵌合凸部２６が嵌合する嵌合凹部３１に、嵌合凸部２６の凸部２８が嵌合する凹部３２と、防御壁部３０が嵌合する防御凹部３３とを設け、これら嵌合凸部２６と嵌合凹部３１とを嵌合させた状態で、その内側下部（図５では右側下部）の固着部２９を超音波溶着によって固着している。このときに、その固着部２９の樹脂が溶けて流れ出しても、嵌合凸部２６の防御壁部３０によってパッキン２７への樹脂の流れ込みを防いでいる。 That is, in the conventional example, as shown in FIG. 5, the fitting convex portion 26 of the fitting portion 25 provided on each peripheral edge portion of the antenna housing portion 9 and the cover panel 10 and fitted to each other has a substantially circular cross section. The convex portion 28 where the packing 27 is disposed is provided, and the protective wall portion 30 further protruding upward is provided on the fixing portion 29 side of the convex portion 28, and the fitting concave portion 26 is fitted into the fitting concave portion. 31 is provided with a concave portion 32 into which the convex portion 28 of the fitting convex portion 26 is fitted and a protective concave portion 33 into which the protective wall portion 30 is fitted, and the fitting convex portion 26 and the fitting concave portion 31 are fitted. In this state, the fixing portion 29 at the inner lower portion (right lower portion in FIG. 5) is fixed by ultrasonic welding. At this time, even if the resin of the fixing portion 29 melts and flows out, the defense wall portion 30 of the fitting convex portion 26 prevents the resin from flowing into the packing 27.

しかし、このような従来例の構造では、固着部２９を超音波溶着で固着するときに、その固着部２９の樹脂が溶けて流れ出しても、嵌合凸部２６の防御壁部３０によってパッキン２７への樹脂の流れ込みを防ぐことはできるが、嵌合部２５の幅方向の厚み、つまり嵌合凸部２６全体の幅方向の厚みＴ１が、嵌合凹部３１の外側縁部に対応する厚みＡと、凸部２８の厚みＢと、防御壁部３０の厚みＣと、嵌合凹部３１の内側縁部に対応する厚みＤとの合計（Ｔ１＝Ａ＋Ｂ＋Ｃ＋Ｄ）となり、嵌合凸部２６と嵌合凹部３１との食い込み量（被り量Ｈ１）も大きくなる。 However, in such a structure of the conventional example, when the fixing portion 29 is fixed by ultrasonic welding, even if the resin of the fixing portion 29 melts and flows out, the packing 27 is prevented by the protective wall portion 30 of the fitting convex portion 26. The thickness of the fitting portion 25 in the width direction, that is, the thickness T1 in the width direction of the entire fitting convex portion 26 is a thickness A corresponding to the outer edge portion of the fitting concave portion 31. And the thickness B of the convex portion 28, the thickness C of the defense wall portion 30, and the thickness D corresponding to the inner edge portion of the fitting concave portion 31 (T1 = A + B + C + D). The amount of biting into the concave portion 31 (covering amount H1) also increases.

これに対し、この実施形態１の嵌合部１２は、図３および図４に示すように、防御壁部３０を設ける必要がないので、その分、嵌合部１２の形状が簡単になり、その製作も容易になるばかりか、従来例に比べて嵌合部１２の幅方向（図３では左右の横方向）の厚み、つまり嵌合凸部１５の幅方向の厚みＴ２を小さくすることができると共に、嵌合凸部１５と嵌合凹部１６との高さ方向（図３では上下の縦方向）における食い込み量（被り量Ｈ２）をも小さくすることができる。 On the other hand, as shown in FIGS. 3 and 4, the fitting portion 12 of the first embodiment does not need to be provided with the defense wall portion 30, and accordingly, the shape of the fitting portion 12 is simplified. In addition to facilitating the manufacture, the thickness of the fitting portion 12 in the width direction (left and right lateral direction in FIG. 3), that is, the thickness T2 of the fitting convex portion 15 in the width direction can be reduced as compared with the conventional example. In addition, the amount of biting (covering amount H2) in the height direction (vertical vertical direction in FIG. 3) between the fitting convex portion 15 and the fitting concave portion 16 can be reduced.

すなわち、この実施形態１における嵌合凸部１５の幅方向の厚みＴ２は、嵌合凹部１６の外側縁部に対応する厚みＡと、嵌合凸部１５の凸部の厚みＢ＋αと、嵌合凹部１６の内側縁部に対応する厚みＤとの合計（Ｔ２＝Ａ＋Ｂ＋α＋Ｄ）となり、第１パッキン部１７の側面部２０の厚みαが従来例の防御壁部３０の厚みＣに比べて大幅に小さい（α＜Ｃ）。このため、従来例に比べて、嵌合部１２全体の厚みＴ２を薄くする（Ｔ２＜Ｔ１）ことができると共に、嵌合凸部１５と嵌合凹部１６との食い込み量（被り量Ｈ２）を従来のものよりも、防御壁部３０の突出した分だけ小さくする（Ｈ２＜Ｈ１）ことができ、これにより嵌合部１２全体を小さくすることができる。 That is, the thickness T2 in the width direction of the fitting convex portion 15 in the first embodiment is the thickness A corresponding to the outer edge of the fitting concave portion 16, the thickness B + α of the convex portion of the fitting convex portion 15, and the fitting. The sum (T2 = A + B + α + D) of the thickness D corresponding to the inner edge of the concave portion 16 is obtained, and the thickness α of the side surface portion 20 of the first packing portion 17 is significantly smaller than the thickness C of the protective wall portion 30 of the conventional example. (Α <C). Therefore, compared to the conventional example, the thickness T2 of the entire fitting portion 12 can be reduced (T2 <T1), and the biting amount (covering amount H2) between the fitting convex portion 15 and the fitting concave portion 16 can be reduced. It can be made smaller than the conventional one by the amount of protrusion of the defense wall portion 30 (H2 <H1), whereby the entire fitting portion 12 can be made smaller.

（実施形態２）
次に、図６および図７を参照して、この発明を電子腕時計に適用した実施形態２について説明する。なお、図１〜図５に示された実施形態１と同一部分には同一符号を付して説明する。
この電子腕時計におけるアンテナ収納部９とカバーパネル１０との防水構造は、図６および図７に示すように、アンテナ収納部９とカバーパネル１０との各周縁部に設けられて互いに嵌合する嵌合部４０と、この嵌合部４０の互いに対応する一部が超音波溶着によって固着される固着部４１と、嵌合部４０の間に配置されるパッキン４２とを備えた構造で、これ以外は実施形態１とほぼ同じ構造になっている。 (Embodiment 2)
Next, a second embodiment in which the present invention is applied to an electronic wristwatch will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected and demonstrated to the same part as Embodiment 1 shown by FIGS.
As shown in FIGS. 6 and 7, the waterproof structure of the antenna housing 9 and the cover panel 10 in this electronic wristwatch is provided on each peripheral edge of the antenna housing 9 and the cover panel 10 and fitted to each other. The structure includes a joint portion 40, a fixing portion 41 to which parts corresponding to each other of the fitting portion 40 are fixed by ultrasonic welding, and a packing 42 disposed between the fitting portions 40. Has substantially the same structure as that of the first embodiment.

この場合、パッキン４２は、断面形状がほぼ円形状に形成された単純な形状の構造になっている。嵌合部４０は、アンテナ収納部９の周縁部に設けられた嵌合凸部４３と、カバーパネル１０の周縁部に設けられた嵌合凹部４４とからなり、この嵌合凸部４３における固着部４１側（図７では右側に位置する内側）の側面には、凸側段差部４５が設けられており、これに対向する嵌合凹部４４の側面には、凸側段差部４５の一部に食い込んで密着する凹側段差部４６が設けられている。また、固着部４１は、嵌合凸部４３と嵌合凹部４４との内側下部（図７では右側下部）に位置し、その個所における両者が超音波溶着によって固着されるように構成されている。 In this case, the packing 42 has a simple structure having a substantially circular cross-sectional shape. The fitting portion 40 includes a fitting convex portion 43 provided at the peripheral portion of the antenna housing portion 9 and a fitting concave portion 44 provided at the peripheral portion of the cover panel 10. A convex step 45 is provided on the side surface of the portion 41 side (the inner side located on the right side in FIG. 7), and a part of the convex step 45 is formed on the side surface of the fitting recess 44 facing this. A concave-side stepped portion 46 is provided that bites into and closely contacts. Moreover, the adhering part 41 is located in the inner lower part (lower right part in FIG. 7) of the fitting convex part 43 and the fitting concave part 44, and both are configured to be fixed by ultrasonic welding. .

このような電子腕時計におけるアンテナ収納部９とカバーパネル１０との防水構造では、アンテナ収納部９とカバーパネル１０との各周縁部が互いに嵌合する嵌合部４０の間に断面ほぼ円形状のパッキン４２を配置して、嵌合部４０の嵌合凸部４３と嵌合凹部４４とを嵌合させると、固着部４１側に位置する嵌合凸部４３の側面と嵌合凹部４４の側面とが密着した状態で、固着部４１側に位置する嵌合凸部４３の凸側段差部４５の一部に嵌合凹部４４の凹側段差部４６が食い込んで密着する。すなわち、嵌合凸部４３の凸側段差部４５における上面の一部に嵌合凹部４４の凹側段差部４６における下面の一部が密着して当接する。 In such a waterproof structure of the antenna housing portion 9 and the cover panel 10 in the electronic wristwatch, the cross section of the antenna housing portion 9 and the cover panel 10 has a substantially circular cross section between the fitting portions 40 in which the peripheral portions of the antenna housing portion 9 and the cover panel 10 are fitted. When the packing 42 is arranged and the fitting convex portion 43 and the fitting concave portion 44 of the fitting portion 40 are fitted, the side surface of the fitting convex portion 43 and the side surface of the fitting concave portion 44 that are located on the fixing portion 41 side. Are in close contact with each other, the concave side stepped portion 46 of the fitting concave portion 44 bites into close contact with a part of the convex side stepped portion 45 of the fitting convex portion 43 located on the fixing portion 41 side. That is, a part of the lower surface of the concave-side step part 46 of the fitting concave part 44 is in close contact with and a part of the upper surface of the convex-side step part 45 of the fitting convex part 43.

このため、この状態でアンテナ収納部９とカバーパネル１０との嵌合部４０における固着部４１を超音波溶着によって固着するときに、その固着部４１の樹脂が溶け出しても、固着部４１側に位置する嵌合凸部４３の側面と嵌合凹部４４の側面とが密着した状態で、凸側段差部４５の一部に凹側段差部４６が食い込んで密着しているので、溶け出した固着部４１の樹脂が嵌合部４０内におけるパッキン４２の密着面に流れ込むのを防ぐことができ、これにより防水性および気密性を確保することができる。 For this reason, even when the fixing portion 41 in the fitting portion 40 between the antenna housing portion 9 and the cover panel 10 is fixed by ultrasonic welding in this state, even if the resin of the fixing portion 41 melts, the fixing portion 41 side In the state where the side surface of the fitting convex portion 43 located at the side and the side surface of the fitting concave portion 44 are in close contact with each other, the concave side step portion 46 bites into and adheres to a part of the convex side step portion 45, so that it melts out. It is possible to prevent the resin of the fixing portion 41 from flowing into the close contact surface of the packing 42 in the fitting portion 40, thereby ensuring waterproofness and airtightness.

この場合にも、固着部４１側における嵌合凸部４３の側面に設けられた凸側段差部４５の一部に嵌合凹部４４の凹側段差部４６が食い込んで密着した状態で嵌合凸部４３と嵌合凹部４４とが嵌合することにより、パッキン４２の密着面への樹脂の流れ込みを防いでいるので、図５に示した従来例のようにアンテナ収納部９とカバーパネル１０との嵌合部４０にパッキン４２の密着面への樹脂の流れ込みを防ぐ防御壁部３０を設ける必要がない。このため、この実施形態２においても、実施形態１と同様、従来例に比べて嵌合部４０の幅方向（図６では左右の横方向）における厚みを薄くすることができると共に、嵌合凸部４３と嵌合凹部４４との高さ方向（図６では上下の縦方向）の食い込み量（被り量）をも小さくすることができ、これにより嵌合部４０全体を小さくすることができる。 Also in this case, the fitting convexity is in a state in which the concave side stepped portion 46 of the fitting concave portion 44 bites into and closely contacts a part of the convex side stepped portion 45 provided on the side surface of the fitting convex portion 43 on the fixing portion 41 side. Since the portion 43 and the fitting recess 44 are fitted to each other to prevent the resin from flowing into the close contact surface of the packing 42, the antenna housing portion 9 and the cover panel 10 are arranged as in the conventional example shown in FIG. It is not necessary to provide the protective wall portion 30 for preventing the resin from flowing into the close contact surface of the packing 42 in the fitting portion 40. For this reason, in the second embodiment, as in the first embodiment, the thickness of the fitting portion 40 in the width direction (left and right lateral directions in FIG. 6) can be reduced compared to the conventional example, and the fitting protrusion The amount of biting (covering amount) in the height direction (vertical vertical direction in FIG. 6) between the portion 43 and the fitting recess 44 can be reduced, whereby the entire fitting portion 40 can be reduced.

（実施形態３）
次に、図８および図９を参照して、この発明を電子腕時計に適用した実施形態３について説明する。この場合には、図１〜図５に示された実施形態１、および図６、図７に示された実施形態２と同一部分に同一符号を付して説明する。
この電子腕時計におけるアンテナ収納部９とカバーパネル１０との防水構造は、図８および図９に示すように、アンテナ収納部９とカバーパネル１０との各周縁部に設けられて互いに嵌合する嵌合部５０と、この嵌合部５０の互いに対応する一部が超音波溶着によって固着される固着部５１と、嵌合部５０の間に配置されるパッキン４２とを備えた構造で、これ以外は実施形態１、２とほぼ同じ構造になっている。 (Embodiment 3)
Next, a third embodiment in which the present invention is applied to an electronic wristwatch will be described with reference to FIGS. In this case, the same parts as those in the first embodiment shown in FIGS. 1 to 5 and the second embodiment shown in FIGS.
As shown in FIGS. 8 and 9, the waterproof structure of the antenna housing 9 and the cover panel 10 in this electronic wristwatch is provided on each peripheral edge of the antenna housing 9 and the cover panel 10 so as to be fitted to each other. A structure including a joint portion 50, a fixing portion 51 to which a part of the fitting portion 50 corresponding to each other is fixed by ultrasonic welding, and a packing 42 disposed between the fitting portions 50. Has substantially the same structure as in the first and second embodiments.

この場合、パッキン４２は、実施形態２と同様、断面形状がほぼ円形状に形成された単純な形状の構造になっている。嵌合部５０は、図９に示すように、アンテナ収納部９の周縁部に設けられた嵌合凸部５２と、カバーパネル１０の周縁部に設けられた嵌合凹部５３とからなり、嵌合凸部５２の先端面には、パッキン４２が食い込むほぼＶ字形状の溝部５４が設けられている。また、固着部５１は、嵌合凸部５２と嵌合凹部５３との内側下部（図９では右側下部）に位置し、その個所における両者が超音波溶着によって固着されるように構成されている。 In this case, the packing 42 has a simple-shaped structure in which the cross-sectional shape is formed in a substantially circular shape as in the second embodiment. As shown in FIG. 9, the fitting part 50 includes a fitting convex part 52 provided on the peripheral part of the antenna housing part 9 and a fitting concave part 53 provided on the peripheral part of the cover panel 10. A substantially V-shaped groove portion 54 into which the packing 42 bites is provided at the front end surface of the joint convex portion 52. Moreover, the adhering part 51 is located in the inner lower part (lower right part in FIG. 9) of the fitting convex part 52 and the fitting concave part 53, and both are configured to be fixed by ultrasonic welding. .

このような電子腕時計におけるアンテナ収納部９とカバーパネル１０との防水構造では、アンテナ収納部９とカバーパネル１０との各周縁部が互いに嵌合する嵌合部５０の間に断面ほぼ円形状のパッキン４２を配置して、嵌合部５０の嵌合凸部５２と嵌合凹部５３とを嵌合させると、嵌合凸部５２の先端面に設けられた溝部５４がほぼＶ字形状に形成されているので、このほぼＶ字形状の溝部５４にパッキン４２を食い込ませることができ、これによりパッキン４２をほぼＶ字形状の溝部５４内における対向面にそれぞれ圧接させることができる。 In such a waterproof structure of the antenna storage portion 9 and the cover panel 10 in the electronic wristwatch, the cross section of the antenna storage portion 9 and the cover panel 10 has a substantially circular cross section between the fitting portions 50 in which the peripheral portions of the antenna storage portion 9 and the cover panel 10 are fitted. When the packing 42 is arranged and the fitting convex portion 52 and the fitting concave portion 53 of the fitting portion 50 are fitted, the groove portion 54 provided on the front end surface of the fitting convex portion 52 is formed in a substantially V shape. Therefore, the packing 42 can be caused to bite into the substantially V-shaped groove portion 54, whereby the packing 42 can be brought into pressure contact with the opposing surface in the substantially V-shaped groove portion 54.

このため、この状態でアンテナ収納部９とカバーパネル１０との嵌合部５０における固着部５１を超音波溶着によって固着するときに、その固着部５１の樹脂が溶け出してパッキン４２の部分に流れ込んでも、パッキン４２がほぼＶ字形状の溝部５４内における対向面の両方にそれぞれ圧接しているので、防水性および気密性を確保することができる。この場合、仮に、ほぼＶ字形状の溝部５４の対向面のうち、一方の面に圧接したパッキン４２の部分に固着部５１の樹脂が流れ込んでも、溝部５４の対向面の他方の面にもパッキン４２が圧接しているので、この他方の面に圧接したパッキン４２の部分によって防水性および気密性を確保することができる。 Therefore, in this state, when the fixing portion 51 in the fitting portion 50 between the antenna housing portion 9 and the cover panel 10 is fixed by ultrasonic welding, the resin of the fixing portion 51 melts and flows into the packing 42 portion. However, since the packing 42 is in pressure contact with both of the opposing surfaces in the substantially V-shaped groove portion 54, waterproofness and airtightness can be ensured. In this case, even if the resin of the fixing portion 51 flows into the portion of the packing 42 pressed against one of the opposing surfaces of the substantially V-shaped groove portion 54, the packing is also applied to the other surface of the opposing surface of the groove portion 54. Since 42 is in pressure contact, waterproofing and airtightness can be ensured by the portion of the packing 42 in pressure contact with the other surface.

また、この場合にも、嵌合凸部５２の先端面に設けられたほぼＶ字形状の溝部５４にパッキン４２を食い込ませて防水性および気密性を確保しているので、図５に示した従来例のようにアンテナ収納部９とカバーパネル１０との嵌合部５０にパッキン４２の密着面への樹脂の流れ込みを防ぐ防御壁部３０を設ける必要がなく、しかもこの実施形態３では、実施形態１のような第１パッキン１７の側面部２０が不要である。このため、この実施形態３では、実施形態１よりも嵌合部５０の幅方向における厚みを更に薄くすることができると共に、嵌合凸部５２と嵌合凹部５３との高さ方向における食い込み量（被り量）も小さくすることができ、これにより嵌合部５０全体を、より一層、小さくすることができる。 Also in this case, since the packing 42 is digged into the substantially V-shaped groove portion 54 provided on the front end surface of the fitting convex portion 52 to ensure waterproofness and airtightness, it is shown in FIG. Unlike the conventional example, the fitting portion 50 between the antenna housing portion 9 and the cover panel 10 does not need to be provided with the protective wall portion 30 for preventing the resin from flowing into the close contact surface of the packing 42. The side part 20 of the 1st packing 17 like the form 1 is unnecessary. For this reason, in the third embodiment, the thickness in the width direction of the fitting portion 50 can be further reduced as compared with the first embodiment, and the amount of biting in the height direction of the fitting convex portion 52 and the fitting concave portion 53 is increased. The (covering amount) can also be reduced, whereby the entire fitting portion 50 can be further reduced.

（実施形態４）
次に、図１０および図１１を参照して、この発明を電子腕時計に適用した実施形態４について説明する。この場合にも、図１〜図５に示された実施形態１と同一部分には同一符号を付して説明する。
この電子腕時計におけるアンテナ収納部９とカバーパネル１０との防水構造は、図１０および図１１に示すように、アンテナ収納部９とカバーパネル１０との各周縁部に設けられて互いに嵌合する嵌合部６０と、この嵌合部６０の互いに対応する一部が超音波溶着によって固着される固着部６１と、嵌合部６０の間に配置されるパッキン６２とを備えた構造で、これ以外は実施形態１とほぼ同じ構造になっている。 (Embodiment 4)
Next, a fourth embodiment in which the present invention is applied to an electronic 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 waterproof structure of the antenna housing part 9 and the cover panel 10 in this electronic wristwatch is provided on each peripheral edge part of the antenna housing part 9 and the cover panel 10 as shown in FIGS. A structure including a joint portion 60, a fixing portion 61 to which parts corresponding to each other of the fitting portion 60 are fixed by ultrasonic welding, and a packing 62 disposed between the fitting portions 60. Has substantially the same structure as that of the first embodiment.

この場合、嵌合部６０は、図１０に示すように、アンテナ収納部９の周縁部に設けられた嵌合凸部６３と、カバーパネル１０の周縁部に設けられた嵌合凹部６４とからなり、この嵌合凸部６３の突出した先端面には、実施形態３と同様、パッキン６２が食い込むほぼＶ字状の溝部６５が設けられていると共に、この先端部における固着部６１側（図１１では右側に位置する内側）の側面には、切欠き溝６６が設けられている。また、固着部６１は、嵌合凸部６３と嵌合凹部６４との内側下部（図１１では右側下部）に位置し、その個所における両者が超音波溶着によって固着されるように構成されている。 In this case, as shown in FIG. 10, the fitting part 60 includes a fitting convex part 63 provided on the peripheral part of the antenna housing part 9 and a fitting concave part 64 provided on the peripheral part of the cover panel 10. Thus, as in the third embodiment, a substantially V-shaped groove 65 into which the packing 62 bites is provided on the protruding front end surface of the fitting convex portion 63, and the fixing portion 61 side (see FIG. 11 is provided with a notch groove 66 on the inner side surface located on the right side. Moreover, the adhering part 61 is located in the inner lower part (lower right part in FIG. 11) of the fitting convex part 63 and the fitting concave part 64, and both are configured to be fixed by ultrasonic welding. .

また、パッキン６２は、実施形態１と同様、断面形状がほぼＬ字状の第１パッキン部１７と、断面形状がほぼ円形状の第２パッキン部１８とを、ゴムなどの合成樹脂によって一体に形成した構成になっている。すなわち、第１パッキン部１７は、図１１に示すように、嵌合部６０の嵌合凸部６３の先端面とこれに対向する前記嵌合凹部６４の底面との間に配置される平面部１９、および固着部６１側に位置する嵌合凸部６３の側面とこれに対向する嵌合凹部６４の側面との間に位置する切欠き溝６６内に配置される側面部２０からなり、これら平面部１９と側面部２０とを一体に形成することにより、断面形状がほぼＬ字状に形成されている。第２パッキン部１８は、断面形状がほぼ円形状に形成され、第１パッキン部１７の平面部１９に一体に形成されている。 As in the first embodiment, the packing 62 is formed by integrally combining a first packing portion 17 having a substantially L-shaped cross section and a second packing portion 18 having a substantially circular cross section with a synthetic resin such as rubber. It has a formed configuration. That is, as shown in FIG. 11, the first packing portion 17 is a flat portion disposed between the front end surface of the fitting convex portion 63 of the fitting portion 60 and the bottom surface of the fitting concave portion 64 facing the first packing portion 17. 19 and the side surface portion 20 disposed in the notch groove 66 positioned between the side surface of the fitting convex portion 63 located on the fixing portion 61 side and the side surface of the fitting concave portion 64 facing this, By forming the flat surface portion 19 and the side surface portion 20 integrally, the cross-sectional shape is formed in an approximately L shape. The second packing part 18 has a substantially circular cross-sectional shape and is formed integrally with the flat part 19 of the first packing part 17.

このような電子腕時計におけるアンテナ収納部９とカバーパネル１０との防水構造では、アンテナ収納部９とカバーパネル１０との各周縁部が互いに嵌合する嵌合部５０の間にパッキン６２を配置して、嵌合部６０の嵌合凸部６３と嵌合凹部６４とを嵌合させると、嵌合凸部６３の先端面に設けられたほぼＶ字形状の溝部６５にパッキン６２の第２パッキン部１８が食い込むので、実施形態３と同様、パッキン４２をほぼＶ字形状の溝部５４内における対向面にそれぞれ圧接させることができ、これにより防水性および気密性を確保することができる。 In such a waterproof structure of the antenna housing portion 9 and the cover panel 10 in the electronic wristwatch, the packing 62 is disposed between the fitting portions 50 in which the peripheral portions of the antenna housing portion 9 and the cover panel 10 are fitted to each other. Then, when the fitting convex portion 63 and the fitting concave portion 64 of the fitting portion 60 are fitted, the second packing of the packing 62 is inserted into the substantially V-shaped groove portion 65 provided on the front end surface of the fitting convex portion 63. Since the portion 18 bites in, as in the third embodiment, the packing 42 can be brought into pressure contact with the opposing surface in the substantially V-shaped groove portion 54, thereby ensuring waterproofness and airtightness.

このときには、特に第１パッキン部１７の平面部１９と断面ほぼ円形状の第２パッキン部１８とが嵌合凸部１５の先端面とこれに対向する嵌合凹部１６の底面との間に挟み付けられると共に、第１パッキン部１７の側面部２０が固着部１３側における嵌合凸部１５の側面と嵌合凹部１６の側面との間の切欠き溝６６内に挟み込まれて密着するので、実施形態１と同様、固着部６１を超音波溶着するときに、固着部６１の樹脂が溶け出しても、第１パッキン部１７の側面部２０によって嵌合部１２内における第２パッキン部１８の密着面への流れ込みを防ぐことができ、これによっても防水性および気密性を確保することができるので、より一層、防水性および気密性の高いものを得ることができる。 At this time, in particular, the flat portion 19 of the first packing portion 17 and the second packing portion 18 having a substantially circular cross section are sandwiched between the front end surface of the fitting convex portion 15 and the bottom surface of the fitting concave portion 16 opposed thereto. Since the side part 20 of the first packing part 17 is sandwiched in the notch groove 66 between the side face of the fitting convex part 15 and the side face of the fitting concave part 16 on the fixing part 13 side, Similarly to the first embodiment, when the fixing portion 61 is ultrasonically welded, even if the resin of the fixing portion 61 melts, the side surface portion 20 of the first packing portion 17 causes the second packing portion 18 in the fitting portion 12 to be melted. Since it can be prevented from flowing into the close contact surface, and waterproofness and airtightness can be ensured by this as well, it is possible to obtain a product with much higher waterproofness and airtightness.

（実施形態５）
次に、図１２および図１３を参照して、この発明を電子腕時計に適用した実施形態５について説明する。この場合には、図６および図７に示された実施形態２と同一部分に同一符号を付して説明する。
この電子腕時計におけるアンテナ収納部９とカバーパネル１０との防水構造は、図１２および図１３に示すように、アンテナ収納部９とカバーパネル１０との各周縁部に設けられて互いに嵌合する嵌合部７０と、この嵌合部７０の互いに対応する一部が超音波溶着によって固着される固着部７１と、嵌合部７０の間に配置されるパッキン７２とを備えた構造で、これ以外は実施形態２とほぼ同じ構造になっている。 (Embodiment 5)
Next, a fifth embodiment in which the present invention is applied to an electronic wristwatch will be described with reference to FIGS. In this case, the same portions as those in the second embodiment shown in FIGS.
As shown in FIGS. 12 and 13, the waterproof structure of the antenna storage unit 9 and the cover panel 10 in this electronic wristwatch is provided on each peripheral edge of the antenna storage unit 9 and the cover panel 10 and fits to each other. A structure including a joint portion 70, a fixing portion 71 to which parts corresponding to each other of the fitting portion 70 are fixed by ultrasonic welding, and a packing 72 disposed between the fitting portions 70. Has substantially the same structure as that of the second embodiment.

この場合、パッキン７２は、実施形態２と同様、断面形状がほぼ円形状に形成された単純な形状の構造になっている。嵌合部７０は、アンテナ収納部９の周縁部に設けられた嵌合凸部７３と、カバーパネル１０の周縁部に設けられた嵌合凹部７４とからなり、この嵌合凸部７３の先端面には、パッキン７２が食い込むほぼＶ字形状の溝部７５が設けられている。また、この嵌合凸部７３における固着部７１側（図１３では右側に位置する内側）の側面には、凸側段差部７６が設けられており、これに対向する嵌合凹部７４の側面には、凸側段差部７６の一部に食い込んで密着する凹側段差部７７が設けられている。固着部７１は、嵌合凸部７３と嵌合凹部７４との内側下部（図１３では右側下部）に位置し、その個所における両者が超音波溶着によって固着されるように構成されている。 In this case, the packing 72 has a simple structure with a substantially circular cross-sectional shape, as in the second embodiment. The fitting portion 70 includes a fitting convex portion 73 provided at the peripheral portion of the antenna housing portion 9 and a fitting concave portion 74 provided at the peripheral portion of the cover panel 10, and the tip of the fitting convex portion 73. A substantially V-shaped groove portion 75 into which the packing 72 bites is provided on the surface. Further, a convex-side stepped portion 76 is provided on the side surface of the fitting convex portion 73 on the fixing portion 71 side (the inner side located on the right side in FIG. 13), and on the side surface of the fitting concave portion 74 facing this. Are provided with a concave stepped portion 77 that bites into and closely contacts a part of the convex stepped portion 76. The adhering portion 71 is located at the inner lower portion (the lower right portion in FIG. 13) of the fitting convex portion 73 and the fitting concave portion 74, and is configured such that both of them are fixed by ultrasonic welding.

このような電子腕時計におけるアンテナ収納部９とカバーパネル１０との防水構造では、アンテナ収納部９とカバーパネル１０との周縁部が互いに嵌合する嵌合部５０の間にパッキン６２を配置して、嵌合部６０の嵌合凸部６３と嵌合凹部６４とを嵌合させると、嵌合凸部６３の先端面に設けられたほぼＶ字形状の溝部７５にパッキン６２の第２パッキン部１８が食い込むので、実施形態３と同様、パッキン４２をほぼＶ字形状の溝部５４内における対向面にそれぞれ圧接させることができ、これにより防水性および気密性を確保することができる。 In such a waterproof structure of the antenna storage portion 9 and the cover panel 10 in the electronic wristwatch, a packing 62 is disposed between the fitting portions 50 where the peripheral portions of the antenna storage portion 9 and the cover panel 10 are fitted to each other. When the fitting convex portion 63 and the fitting concave portion 64 of the fitting portion 60 are fitted, the second packing portion of the packing 62 is inserted into the substantially V-shaped groove portion 75 provided on the front end surface of the fitting convex portion 63. Therefore, as in the third embodiment, the packing 42 can be brought into pressure contact with the opposing surfaces in the substantially V-shaped groove portion 54, thereby ensuring waterproofness and airtightness.

このときには、特に固着部７１側に位置する嵌合凸部７３の側面と嵌合凹部７４の側面とが密着した状態で、嵌合凸部７３の凸側段差部７６の一部に嵌合凹部７４の凹側段差部７７が食い込んで密着するので、実施形態２と同様、固着部７１を超音波溶着するときに、その固着部７１の樹脂が溶け出しても、この溶け出した固着部４１の樹脂が嵌合部７０内におけるパッキン７２の密着面に流れ込むのを防ぐことができ、これによっても防水性および気密性を確保することができるので、実施形態４と同様、より一層、防水性および気密性の高いものを得ることができる。 At this time, in particular, in a state where the side surface of the fitting convex portion 73 located on the fixing portion 71 side and the side surface of the fitting concave portion 74 are in close contact with each other, a fitting concave portion is formed on a part of the convex side step portion 76 of the fitting convex portion 73. Since the concave-side stepped portion 77 of 74 intrudes into close contact, even when the fixing portion 71 is ultrasonically welded as in the second embodiment, even if the resin of the fixing portion 71 is melted, the melted fixing portion 41 is melted. The resin can be prevented from flowing into the close contact surface of the packing 72 in the fitting portion 70, and this can also ensure waterproofness and airtightness. In addition, a highly airtight one can be obtained.

なお、上記実施形態３〜５では、嵌合凸部５２、６３、７３の先端面のみにパッキン４２、６２、７２が食い込むほぼＶ字形状の溝部５４、６５、７５を設けたが、これに限らず、嵌合凸部５２、６３、７３の先端面に対応する嵌合凹部５３、６４、７４の底面にもパッキン４２、６２、７２が食い込むほぼＶ字形状の溝部を設けても良い。このようにすれば、より一層、防水性および気密性の高いものを得ることができる。 In the third to fifth embodiments, the substantially V-shaped grooves 54, 65, 75 into which the packings 42, 62, 72 bite are provided only on the front end surfaces of the fitting convex portions 52, 63, 73. Not limited to this, a substantially V-shaped groove portion into which the packings 42, 62, and 72 bite may also be provided on the bottom surfaces of the fitting recesses 53, 64, and 74 corresponding to the front end surfaces of the fitting convex portions 52, 63, and 73. In this way, it is possible to obtain a further waterproof and airtight material.

また、上記実施形態１〜５およびその変形例では、嵌合部１２、４０、５０、６０、７０が、アンテナ収納部９の周縁部に嵌合凸部１５、４３、５２、６３、７３を設け、カバーパネル１０の周縁部に嵌合凹部１６、４４、５３、６４、７４を設けた構造になっている場合について述べたが、これに限らず、例えばアンテナ収納部９の周縁部に嵌合凹部を設け、カバーパネル１０の周縁部に嵌合凸部を設けた構造でも良い。 Moreover, in the said Embodiments 1-5 and its modification, fitting part 12,40,50,60,70 has fitting convex part 15,43,52,63,73 in the peripheral part of the antenna accommodating part 9. FIG. The case where the fitting recesses 16, 44, 53, 64, and 74 are provided at the peripheral edge of the cover panel 10 has been described. A structure in which a mating concave portion is provided and a fitting convex portion is provided on the peripheral edge portion of the cover panel 10 may be employed.

また、上記実施形態１〜５およびその各変形例では、腕時計ケース１のバンド取付部７にアンテナ収納部９を設け、このアンテナ収納部９にアンテナ８を収納させてカバーパネル１０を超音波溶着によって固着した場合について述べたが、これに限らず、例えば腕時計ケース１の上面における中央部に時計ガラス３を超音波溶着によって取り付ける場合にも適用することができる。 Further, in the first to fifth embodiments and the modifications thereof, the antenna housing portion 9 is provided in the band attaching portion 7 of the watch case 1, and the antenna 8 is housed in the antenna housing portion 9 so that the cover panel 10 is ultrasonically welded. However, the present invention is not limited to this. For example, the invention can also be applied to the case where the watch glass 3 is attached to the central portion of the upper surface of the watch case 1 by ultrasonic welding.

さらに、上記実施形態１〜５およびその各変形例では、電子腕時計に適用した場合について述べたが、これに限らず、例えば携帯電話機、ＰＤＡ（パーソナル・デジタル・アシスタント）などの電子機器に広く適用することができる。 Furthermore, in the above-described first to fifth embodiments and the modifications thereof, the case where the present invention is applied to an electronic wristwatch has been described. can do.

この発明を適用した電子腕時計の正面図である。（実施形態１）1 is a front view of an electronic wristwatch to which the present invention is applied. (Embodiment 1) 図１のＡ−Ａ矢視における拡大断面図である。It is an expanded sectional view in the AA arrow of FIG. 図２の要部を示した拡大断面図である。It is the expanded sectional view which showed the principal part of FIG. 図３の更に要部を拡大して示した断面図である。It is sectional drawing which expanded and showed the principal part of FIG. 従来の嵌合部の構造を示した拡大断面図である。It is the expanded sectional view which showed the structure of the conventional fitting part. この発明を適用した電子腕時計の要部を示した拡大断面図である。（実施形態２）It is the expanded sectional view which showed the principal part of the electronic wristwatch to which this invention is applied. (Embodiment 2) 図６の更に要部を拡大して示した断面図である。It is sectional drawing which expanded and showed the principal part of FIG. この発明を適用した電子腕時計の要部を示した拡大断面図である。（実施形態３）It is the expanded sectional view which showed the principal part of the electronic wristwatch to which this invention is applied. (Embodiment 3) 図８の更に要部を拡大して示した断面図である。It is sectional drawing which expanded and showed the principal part of FIG. この発明を適用した電子腕時計の要部を示した拡大断面図である。（実施形態４）It is the expanded sectional view which showed the principal part of the electronic wristwatch to which this invention is applied. (Embodiment 4) 図１０の更に要部を拡大して示した断面図である。It is sectional drawing which expanded and showed the principal part of FIG. この発明を適用した電子腕時計の要部を示した拡大断面図である。（実施形態５）It is the expanded sectional view which showed the principal part of the electronic wristwatch to which this invention is applied. (Embodiment 5) 図１２の更に要部を拡大して示した断面図である。It is sectional drawing which expanded and showed the principal part of FIG.

Explanation of symbols

１腕時計ケース
９アンテナ収納部
１０カバーパネル
１２、４０、５０、６０、７０嵌合部
１３、４１、５１、６１、７１固着部
１４、４２、６２、７２パッキン
１５、４３、５２、６３、７３嵌合凸部
１６、４４、５３、６４、７４嵌合凹部
１７第１パッキン部
１８第２パッキン部
１９平面部
２０側面部
４５、７６凸側段差部
４６、７７凹側段差部
５４、６５、７５溝部 DESCRIPTION OF SYMBOLS 1 Watch case 9 Antenna storage part 10 Cover panel 12, 40, 50, 60, 70 Fitting part 13, 41, 51, 61, 71 Adhering part 14, 42, 62, 72 Packing 15, 43, 52, 63, 73 Fitting convex part 16, 44, 53, 64, 74 Fitting concave part 17 First packing part 18 Second packing part 19 Plane part 20 Side face part 45, 76 Convex side step part 46, 77 Concave side step part 54, 65, 75 groove

Claims

A synthetic resin case having a component storage portion, a synthetic resin cover member for closing the component storage portion of the case, a peripheral portion of the component storage portion, and a peripheral portion of the cover member are fitted to each other. A fitting portion to be joined, a fixing portion to which a part of the fitting portion is fixed by welding, and a packing disposed between the fitting portions,
The fitting portion includes a fitting convex portion provided on one of a peripheral edge portion of the component storage portion and a peripheral edge portion of the cover member, and a fitting concave portion provided on the other side.
The packing includes a flat surface portion disposed between a front end surface of the fitting convex portion and a bottom surface of the fitting concave portion facing the fitting convex portion, and a side surface of the fitting convex portion located on the fixing portion side. A first packing portion having a substantially L-shaped cross-section formed integrally with a side surface disposed between the fitting recess and the side surface of the fitting recess is formed integrally with the flat portion of the first packing portion. A waterproof structure characterized in that the cross-sectional shape is a substantially circular second packing portion.

A synthetic resin case having a component storage portion, a synthetic resin cover member for closing the component storage portion of the case, a peripheral portion of the component storage portion, and a peripheral portion of the cover member are fitted to each other. A fitting portion to be joined, a fixing portion to which a part of the fitting portion is fixed by welding, and a packing having a substantially circular cross section disposed between the fitting portions,
The fitting part includes a fitting convex part provided on one of a peripheral part of the component storage part and a peripheral part of the cover member, and a fitting concave part provided on the other side, and the fixing part side. A convex-side step portion is provided on a side surface of the fitting convex portion, and a concave-side step portion is provided on a side surface of the fitting concave portion opposed to the convex-side step portion so as to bite into a part of the convex-side step portion. Waterproof structure, characterized by

A synthetic resin case having a component storage portion, a synthetic resin cover member for closing the component storage portion of the case, a peripheral portion of the component storage portion, and a peripheral portion of the cover member are fitted to each other. A fitting portion to be joined, a fixing portion to which a part of the fitting portion is fixed by welding, and a packing disposed between the fitting portions,
The fitting portion includes a fitting convex portion provided on one of a peripheral edge portion of the component storage portion and a peripheral edge portion of the cover member, and a fitting concave portion provided on the other side. Among the front end surface of the portion and the bottom surface of the fitting concave portion opposed thereto, at least the front end surface of the fitting convex portion is provided with a substantially V-shaped groove portion into which the packing bites. Construction.

The packing includes a flat portion disposed between a front end surface of the fitting convex portion and a bottom surface of the fitting concave portion facing the fitting convex portion, and a side surface of the fitting convex portion on the fixing portion side and the fitting. A first packing portion having a substantially L-shaped cross-section formed integrally with a side surface disposed between the side surfaces of the concave portion, and a cross-sectional shape formed integrally with the flat portion of the first packing portion is substantially the same. The waterproof structure according to claim 3, comprising a second packing portion having a circular shape.

The packing has a substantially circular cross-sectional shape, and a convex-side step portion is provided on a side surface of the fitting convex portion on the fixing portion side, and the convex portion is provided on a side surface of the fitting concave portion opposed thereto. The waterproof structure according to claim 3, wherein a concave stepped portion is provided that bites into and closely contacts a part of the side stepped portion.