JP2008267542A - Water-proof structure for electronic equipment having opening/closing portion - Google Patents

Water-proof structure for electronic equipment having opening/closing portion Download PDF

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Publication number
JP2008267542A
JP2008267542A JP2007113782A JP2007113782A JP2008267542A JP 2008267542 A JP2008267542 A JP 2008267542A JP 2007113782 A JP2007113782 A JP 2007113782A JP 2007113782 A JP2007113782 A JP 2007113782A JP 2008267542 A JP2008267542 A JP 2008267542A
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JP
Japan
Prior art keywords
packing
surface side
opening
closing
face side
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Pending
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JP2007113782A
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Japanese (ja)
Inventor
Hirotomo Fukushima
啓友 福島
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Application filed by Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP2007113782A priority Critical patent/JP2008267542A/en
Publication of JP2008267542A publication Critical patent/JP2008267542A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To reduce the thrusting force of a protruded portion of one member on a packing during closing, and slow down the deterioration of the packing. <P>SOLUTION: The protruded portion 1a is provided on one member 1, and a recessed portion 2a is provided in the other member 2. The packing 3 is fitted to the recessed portion 2a. An annular groove portion 1b is provided around the protruded portion 1a of one member 1 so that the packing 3 closely contacts it during closing, and recessed portions 3a, 3b are provided in the inner face side center and in the outer face side center of the packing 3, respectively. The outer face side recessed portion 3b is fitted to the protruded portion 1a of one member 1 during closing. The depth (h) of the outer face side recessed portion 3b is smaller than a total height H of the protruded portion 1a of one member 1 and the groove portion 1b, and a diameter W of the inner face side recessed portion 3a is larger than a diameter (t) of the outer face side recessed portion 3b. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、開閉自在な開閉部を有する電子機器の防水構造に関するものである。   The present invention relates to a waterproof structure for an electronic device having an openable / closable opening / closing part.

外部に露出する開閉部を有する電子機器は、図３及び図４に示すような防水構造を有する。図３は従来の外部に露出する開閉部を有する電子機器の防水構造の開口時の断面図、図４は閉口時の断面図である。図において、１は突出部１ａを有する一方の部材、２は凹部２ａを有する他方の部材であり、凹部２ａにはパッキン３が嵌合され、パッキン３は内面側中央に凹部３ａを有する。そして、図４に示す閉口時には、一方の部材１の突出部１ａによりパッキン３の外端部の中央部上を押圧することにより、パッキン３の外端部の周辺部が中央方向へ引っ張られ、外端部が一方の部材１の突出部１ａと密着し、突出部１ａとパッキン３の外端部との間に防水面（太線部分）４が形成される。又、パッキン３の内端側では外側に広がる力が働くため、パッキン３の内端側は他方の部材２の凹部２ａに密着し、パッキン３の内端側と他方の部材２の凹部２ａとの間に防水面（太線部分）４が形成される。これらの防水面４により、高い防浸性、防水性を得ることができる。ｄは、閉口時に突出部１ａがパッキン３と接触した後にパッキン３を押し込む距離である。   An electronic device having an opening / closing portion exposed to the outside has a waterproof structure as shown in FIGS. FIG. 3 is a cross-sectional view of a conventional waterproof structure of an electronic device having an opening / closing portion exposed to the outside, and FIG. 4 is a cross-sectional view of the electronic device when closed. In the figure, 1 is one member having a protruding portion 1a, 2 is the other member having a recess 2a, a packing 3 is fitted into the recess 2a, and the packing 3 has a recess 3a at the center on the inner surface side. And at the time of closing shown in FIG. 4, the peripheral part of the outer end part of packing 3 is pulled in the center direction by pressing on the central part of the outer end part of packing 3 by protrusion part 1a of one member 1. The outer end portion is in close contact with the protruding portion 1 a of one member 1, and a waterproof surface (thick line portion) 4 is formed between the protruding portion 1 a and the outer end portion of the packing 3. Further, since a force spreading outward is exerted on the inner end side of the packing 3, the inner end side of the packing 3 is in close contact with the concave portion 2a of the other member 2, and the inner end side of the packing 3 and the concave portion 2a of the other member 2 A waterproof surface (thick line portion) 4 is formed between the two. By these waterproof surfaces 4, high water-proof property and waterproof property can be obtained. d is a distance to push the packing 3 after the projecting portion 1a comes into contact with the packing 3 at the time of closing.

なお、この出願の発明に関連する先行技術文献情報としては次のものがある。
特開２００５−１３１６７８号公報 Note that prior art document information relating to the invention of this application includes the following.
JP 2005-131678 A

しかしながら、上記のような構造、特に上記のようなパッキン３の形状では、高い防水性を得るためには、パッキン３の外端部をより強い力で押さえ付け、パッキン３の外端部がより中央方向へ引っ張られることで、突出部１ａとのより大きな密着面を得ることが必要となる。そのためには、開閉部を閉めるときに、即ち一方の部材１をパッキン３に押圧するときに、強い力が必要となった。又、開閉部を何度も開閉する際に何度も強い圧力を印加することにより、パッキン３の劣化が促進されるという問題も生じた。   However, in the structure as described above, particularly in the shape of the packing 3 as described above, in order to obtain high waterproofness, the outer end portion of the packing 3 is pressed with a stronger force, and the outer end portion of the packing 3 is more By pulling in the central direction, it is necessary to obtain a larger contact surface with the protruding portion 1a. For this purpose, a strong force is required when closing the opening / closing part, that is, when pressing one member 1 against the packing 3. In addition, there is a problem that deterioration of the packing 3 is promoted by applying a strong pressure many times when the opening and closing part is opened and closed many times.

この発明は上記のような課題を解決するために成されたものであり、閉口時に一方の部材がパッキンを押圧する力を軽減することができるとともに、パッキンの劣化を遅らせることができる開閉部を有する電子機器の防水構造を得ることを目的とする。   The present invention has been made to solve the above-described problems. An opening / closing portion that can reduce the force with which one member presses the packing during closing and can delay the deterioration of the packing. An object of the present invention is to obtain a waterproof structure for an electronic device.

この発明の請求項１に係る開閉部を有する電子機器の防水構造は、突出部が設けられた一方の部材と、凹部が設けられた他方の部材と、他方の部材の凹部に嵌合されたパッキンとを備え、閉口時に一方の部材の突出部をパッキンに押圧するようにした開閉部を有する電子機器の防水構造において、一方の部材の突出部の周囲に閉口時にパッキンが密着するような環状の溝部を設けとともに、パッキンの内面側中央及び外面側中央にそれぞれ凹部を設け、外面側凹部は閉口時に一方の部材の突出部と嵌合させるとともに、外面側凹部の深さは一方の部材の突出部と溝部を合わせた高さより浅くし、かつ内面側凹部の径を外面側凹部の径より大きくしたものである。   According to a first aspect of the present invention, there is provided a waterproof structure for an electronic device having an opening / closing portion, which is fitted into one member provided with a protrusion, the other member provided with a recess, and the recess of the other member. In a waterproof structure of an electronic device having an opening / closing part that includes a packing and presses the protruding part of one member against the packing when the opening is closed, an annular shape in which the packing closely adheres around the protruding part of the one member In addition, a groove is provided at each of the inner surface side center and the outer surface side center of the packing, and the outer surface side recess is fitted with the protruding portion of one member when closed, and the depth of the outer surface side recess is the same as that of one member. It is shallower than the combined height of the protruding portion and the groove portion, and the diameter of the inner surface side concave portion is larger than the diameter of the outer surface side concave portion.

以上のようにこの発明の請求項１によれば、閉口時にパッキンの内面側と他方の部材の凹部との間に広い防水面が形成されるとともに、一方の部材の突出部とパッキンの外面側凹部との間にも広い防水面が形成され、防水性を高めることができる。このため、閉口時に一方の部材の突出部がパッキンを押圧する力が軽減され、パッキンの劣化も遅らせることができる。   As described above, according to the first aspect of the present invention, a wide waterproof surface is formed between the inner surface side of the packing and the concave portion of the other member at the time of closing, and the protruding portion of one member and the outer surface side of the packing A wide waterproof surface is also formed between the recesses and the waterproof property can be enhanced. For this reason, the force by which the protruding portion of one member presses the packing during closing is reduced, and the deterioration of the packing can also be delayed.

以下、この発明を実施するための最良の形態を図面とともに説明する。図１及び図２はこの発明の実施最良形態による開閉部を有する電子機器の防水構造の閉口時の断面図及び開口時の断面図を示し、一方の部材１に突出部１ａを設けるとともに、他方の部材２に凹部２ａを設け、凹部２ａにパッキン３を嵌合する。一方の部材１の突出部１ａの周囲には閉口時にパッキン３が密着するような環状の溝部１ｂを設けるとともに、パッキン３の内面側中央及び外面側中央にそれぞれ凹部３ａ，３ｂを設ける。外面側凹部３ｂは突出部１ａと嵌合可能とするとともに、外面側凹部３ｂの深さｈは一方の部材１の突出部１ａと溝部１ｂとを合わせた高さＨより浅くし、内面側凹部１ａの径Ｗを外面側凹部３ｂの径ｔより大きくする。なお、図１の二点鎖線は突出部１ａの開口時の外形である。   The best mode for carrying out the present invention will be described below with reference to the drawings. 1 and 2 show a cross-sectional view of a waterproof structure of an electronic device having an opening / closing portion according to the preferred embodiment of the present invention when closed and a cross-sectional view when opened. The member 2 is provided with a recess 2a, and the packing 3 is fitted into the recess 2a. An annular groove portion 1b is provided around the protruding portion 1a of one member 1 so that the packing 3 is in close contact with the closing portion, and concave portions 3a and 3b are provided at the inner surface side center and the outer surface side center of the packing 3, respectively. The outer surface side concave portion 3b can be fitted with the protruding portion 1a, and the depth h of the outer surface side concave portion 3b is shallower than the combined height H of the protruding portion 1a and the groove portion 1b of the one member 1, and the inner surface side concave portion is formed. The diameter W of 1a is made larger than the diameter t of the outer surface side recess 3b. In addition, the dashed-two dotted line of FIG. 1 is the external shape at the time of opening of the protrusion part 1a.

上記構成において、図１に示す閉口時には突出部１ａをパッキン３の外面側凹部３ｂに嵌合させ、さらに距離Ｄだけ押し込む。このとき、パッキン３の内面側では矢印５に示すように他方の部材２の凹部２ａの外方への力が働いて、パッキン３の内面側と他方の部材２の凹部２ａとの間に密着した防水面６（太線部分）が形成されるとともに、パッキン３の外面側が突出部１ａを矢印７に示すように押圧する力が働いて、パッキン３の外面側と突出部１ａとの間に密着した防水面（太線部分）６が形成され、防水面６が広くなり、防水性を高めることができる。   In the above configuration, when the opening shown in FIG. 1 is closed, the protruding portion 1a is fitted into the outer surface side concave portion 3b of the packing 3 and further pushed in by a distance D. At this time, as shown by an arrow 5 on the inner surface side of the packing 3, an outward force acts on the concave portion 2 a of the other member 2, so that the inner surface side of the packing 3 and the concave portion 2 a of the other member 2 are in close contact with each other. The waterproof surface 6 (thick line portion) is formed, and the outer surface side of the packing 3 is pressed between the outer surface side of the packing 3 and the protruding portion 1a due to the pressing force of the protruding portion 1a as shown by the arrow 7. The waterproof surface (thick line portion) 6 is formed, the waterproof surface 6 becomes wider, and the waterproof property can be enhanced.

以上のように、上記した実施最良形態によれば、閉口時に広い防水面６が得られるので、閉口時に一方の部材１とパッキン３が接触した後に一方の部材１がパッキン３を押し込む距離Ｄが従来の距離ｄより小さくても、同等の防水性を得ることができ、結果的にパッキン３の反力が減少し、閉口時に突出部１ａがパッキン３を押圧する力が軽減され、パッキン３の劣化も遅らせることができる。   As described above, according to the above-described best embodiment, since a wide waterproof surface 6 is obtained when the mouth is closed, the distance D into which the one member 1 pushes the packing 3 after the one member 1 and the packing 3 come into contact with each other when the mouth is closed. Even if the distance d is smaller than the conventional distance d, the same waterproofness can be obtained. As a result, the reaction force of the packing 3 is reduced, and the force that the protruding portion 1a presses the packing 3 when closed is reduced. Degradation can also be delayed.

この発明の実施最良形態による開閉部を有する電子機器の防水構造の閉口時の断面図である。It is sectional drawing at the time of closing of the waterproof structure of the electronic device which has an opening-and-closing part by this Embodiment best mode. 実施最良形態による開閉部を有する電子機器の防水構造の開口時の断面図である。It is sectional drawing at the time of opening of the waterproof structure of the electronic device which has an opening-and-closing part by embodiment. 従来の開閉部を有する電子機器の防水構造の開口時の断面図である。It is sectional drawing at the time of opening of the waterproof structure of the electronic device which has the conventional opening / closing part. 従来の開閉部を有する電子機器の防水構造の閉口時の断面図である。It is sectional drawing at the time of closing of the waterproof structure of the electronic device which has the conventional opening / closing part.

符号の説明Explanation of symbols

１…一方の部材
１ａ…突出部
１ｂ…溝部
２…他方の部材
２ａ，３ａ，３ｂ…凹部
３…パッキン
６…防水面
DESCRIPTION OF SYMBOLS 1 ... One member 1a ... Projection part 1b ... Groove part 2 ... Other member 2a, 3a, 3b ... Recessed part 3 ... Packing 6 ... Waterproof surface

Claims (1)

突出部が設けられた一方の部材と、凹部が設けられた他方の部材と、他方の部材の凹部に嵌合されたパッキンとを備え、閉口時に一方の部材の突出部をパッキンに押圧するようにした開閉部を有する電子機器の防水構造において、一方の部材の突出部の周囲に閉口時にパッキンが密着するような環状の溝部を設けとともに、パッキンの内面側中央及び外面側中央にそれぞれ凹部を設け、外面側凹部は閉口時に一方の部材の突出部と嵌合させるとともに、外面側凹部の深さは一方の部材の突出部と溝部を合わせた高さより浅くし、かつ内面側凹部の径を外面側凹部の径より大きくしたことを特徴とする開閉部を有する電子機器の防水構造。   One member provided with a protruding portion, the other member provided with a concave portion, and a packing fitted in the concave portion of the other member, so that the protruding portion of one member is pressed against the packing at the time of closing In the waterproof structure of an electronic device having an open / close portion, an annular groove portion is provided around the protruding portion of one member so that the packing is in close contact with the closing portion, and a recess is formed in each of the inner surface side center and the outer surface side center of the packing. The outer surface side concave portion is fitted with the protruding portion of one member when closed, and the depth of the outer surface side concave portion is shallower than the combined height of the protruding portion of one member and the groove portion, and the diameter of the inner surface side concave portion is set. A waterproof structure for an electronic device having an opening / closing portion, characterized by being larger than the diameter of the concave portion on the outer surface side.
JP2007113782A 2007-04-24 2007-04-24 Water-proof structure for electronic equipment having opening/closing portion Pending JP2008267542A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011077099A (en) * 2009-09-29 2011-04-14 Saxa Inc Waterproof structure of electronic equipment
CN102428301A (en) * 2010-03-16 2012-04-25 日本梅克特隆株式会社 Sealing member
EP3468323A1 (en) * 2017-10-09 2019-04-10 Aptiv Technologies Limited Perimeter seal

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62194248U (en) * 1986-05-30 1987-12-10
JPH0579126U (en) * 1992-03-31 1993-10-26 株式会社土屋製作所 Sealing device with elastic packing
JPH074525A (en) * 1993-06-14 1995-01-10 Casio Comput Co Ltd Waterproof structure for small-size equipment
JP2006153179A (en) * 2004-11-30 2006-06-15 Nippon Pillar Packing Co Ltd Fluid gasket

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62194248U (en) * 1986-05-30 1987-12-10
JPH0579126U (en) * 1992-03-31 1993-10-26 株式会社土屋製作所 Sealing device with elastic packing
JPH074525A (en) * 1993-06-14 1995-01-10 Casio Comput Co Ltd Waterproof structure for small-size equipment
JP2006153179A (en) * 2004-11-30 2006-06-15 Nippon Pillar Packing Co Ltd Fluid gasket

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011077099A (en) * 2009-09-29 2011-04-14 Saxa Inc Waterproof structure of electronic equipment
CN102428301A (en) * 2010-03-16 2012-04-25 日本梅克特隆株式会社 Sealing member
EP3468323A1 (en) * 2017-10-09 2019-04-10 Aptiv Technologies Limited Perimeter seal
CN109640567A (en) * 2017-10-09 2019-04-16 安波福技术有限公司 Peripheral seal
US10473218B2 (en) 2017-10-09 2019-11-12 Aptiv Technologies Limited Perimeter seal
CN109640567B (en) * 2017-10-09 2020-11-10 安波福技术有限公司 Perimeter seal

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