JP2016115737A - Waterproof structure of housing - Google Patents

Waterproof structure of housing Download PDF

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JP2016115737A
JP2016115737A JP2014251574A JP2014251574A JP2016115737A JP 2016115737 A JP2016115737 A JP 2016115737A JP 2014251574 A JP2014251574 A JP 2014251574A JP 2014251574 A JP2014251574 A JP 2014251574A JP 2016115737 A JP2016115737 A JP 2016115737A
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casing
waterproof
waterproof packing
screw
housing
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JP6487197B2 (en
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謙伸 堀越
Kanenobu Horikoshi
謙伸 堀越
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Xacti Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a waterproof structure of a housing capable of blocking up-sizing of the housing, while preventing waterproofness of a waterproof space from lowering.SOLUTION: The waterproof structure of a housing 10 includes a first casing 20, a second casing 30 to be coupled with the first casing, a waterproof packing 40 fitted to the joint surfaces 22, 32 of the first and second casings, and compressed by the joint surfaces, and a screw 50 for fastening the first and second casings. The screwing direction (line β) is non-parallel with the compression direction (arrow α) of the waterproof packing. The screwing direction may be substantially perpendicular to the compression direction of the waterproof packing.SELECTED DRAWING: Figure 7

Description

本発明は、ケーシングどうしの接合面に防水パッキンを配備した筐体の防水構造に関するものである。   The present invention relates to a waterproof structure of a casing in which waterproof packing is provided on a joint surface between casings.

デジタルカメラなどの電子機器は、筐体内に収容される電子部品等の防水性を確保するため、筐体を構成するケーシングに防水空間を設けている。防水空間は、ケーシングの接合面に防水パッキンを嵌装して構成される。   In an electronic device such as a digital camera, a waterproof space is provided in a casing constituting the casing in order to ensure waterproofness of electronic components and the like housed in the casing. The waterproof space is configured by fitting a waterproof packing on the joint surface of the casing.

たとえば、特許文献１では、ケーシングどうしの連結に際し、防水パッキンの圧縮方向と平行な向きのビス止めを行なっている。   For example, in Patent Document 1, when connecting casings, screws are fixed in a direction parallel to the compression direction of the waterproof packing.

特開２００７−４２８４２号公報JP 2007-42842 A

製造工程やメンテナンスなどにおいて、ケーシングの開閉に伴うビスの締め外しを繰り返し行う場合、ビス止めを防水パッキンの圧縮方向と平行な向きに行なうと、ビス山への負荷が大きくなりガタツキが生じてビスが緩み（所謂ビスバカ）、防水パッキンの圧縮率が下がるから、防水空間の防水性が低下する。またビスの首下へかかる応力が大きいため、ビスが首下から破損する可能性もある。さらに、ビスの締付けが不完全であると、防水パッキンの反発力によりケーシングが開いてしまうことがある。   In the manufacturing process and maintenance, etc., when the screws are repeatedly tightened as the casing is opened and closed, if the screws are tightened in a direction parallel to the compression direction of the waterproof packing, the load on the screw threads will increase and looseness will occur. However, since the compression rate of the waterproof packing is lowered, the waterproof property of the waterproof space is lowered. Moreover, since the stress applied to the neck of the screw is large, the screw may be damaged from the neck. Furthermore, if the screws are not completely tightened, the casing may open due to the repulsive force of the waterproof packing.

また、電子機器では、小型化の要請がある一方、防水空間により多くの電子部品を収容し、また、許容される限り大容量のバッテリを搭載したいという要請がある。しかしながら、特許文献１の構造であれば、防水パッキンの外周側にビス止め用の領域を確保する必要があり、筐体の大型化に繋がる。もちろん、ビス止め用の領域を回避するように屈曲して防水パッキンを嵌装することもできるが、かかる構造は防水性の低下を招く虞がある。   In addition, there is a demand for downsizing electronic devices, while there is a demand for accommodating many electronic components in a waterproof space and mounting a battery with a large capacity as much as allowed. However, if it is the structure of patent document 1, it is necessary to ensure the area | region for screwing on the outer peripheral side of a waterproof packing, and it leads to the enlargement of a housing | casing. Of course, the waterproof packing can be fitted by bending so as to avoid the area for screwing, but such a structure may cause a decrease in waterproofness.

本発明の目的は、防水空間の防水性の低下を防止しつつ、筐体の大型化を阻止できる筐体の防水構造を提供することである。   The objective of this invention is providing the waterproof structure of a housing | casing which can prevent the enlargement of a housing | casing, preventing the fall of the waterproofness of a waterproof space.

本発明に係る筐体の防水構造は、
第１ケーシングと、
前記第１ケーシングと連結される第２ケーシングと、
前記第１ケーシングと前記第２ケーシングの接合面に嵌装され、前記接合面によって圧縮される防水パッキンと、
前記第１ケーシングと前記第２ケーシングとを締結するビスと、
を具え、
ビス止め方向は、前記防水パッキンの圧縮方向と非平行である。 The waterproof structure of the housing according to the present invention is:
A first casing;
A second casing coupled to the first casing;
A waterproof packing that is fitted to the joint surface of the first casing and the second casing and is compressed by the joint surface;
A screw for fastening the first casing and the second casing;
With
The screwing direction is not parallel to the compression direction of the waterproof packing.

前記ビス止め方向は、前記防水パッキンの圧縮方向に対して略垂直とすることができる。   The screwing direction can be substantially perpendicular to the compression direction of the waterproof packing.

前記第１ケーシングに形成された第１係止部と、
前記第２ケーシングに形成され、前記第１係止部に係合する第２係止部と、
を具え、
前記第１係止部と前記第２係止部は、前記防水パッキンの圧縮方向に対して略垂直に抗して係合することができる。 A first locking portion formed on the first casing;
A second locking portion formed on the second casing and engaged with the first locking portion;
With
The first locking portion and the second locking portion can be engaged with each other while being substantially perpendicular to the compression direction of the waterproof packing.

前記第２ケーシングは、前記第１ケーシングの外周に沿って舌片が延設されており、
前記舌片と前記第１ケーシングを前記ビスによって締結することができる。 The second casing has a tongue extending along the outer periphery of the first casing,
The tongue piece and the first casing can be fastened by the screw.

前記第１ケーシングの外周には、前記舌片の嵌まる凹部を形成することができる。   A concave portion into which the tongue piece fits can be formed on the outer periphery of the first casing.

本発明の筐体の防水構造によれば、第１ケーシングと第２ケーシングのビス止め方向を防水パッキンの圧縮方向に対して非平行な向きとすることで、ケーシングの繰返しの開閉に伴うビスの緩みを抑えることができ、防水性の低下を防止できる。とくに、前記ビス止め方向を前記防水パッキンの圧縮方向に対して略垂直とすることで、防水パッキンの反発力はビスに略垂直に作用するから、たとえビスの締付けが不完全であってもケーシングの開きを防止できる。   According to the waterproof structure of the housing of the present invention, the screw fixing direction of the first casing and the second casing is set to be non-parallel to the compression direction of the waterproof packing, so that Looseness can be suppressed and deterioration of waterproofness can be prevented. In particular, by making the screwing direction substantially perpendicular to the compression direction of the waterproof packing, the repelling force of the waterproof packing acts substantially perpendicular to the screw, so even if the screw tightening is incomplete, the casing Can be prevented.

また、上記構成とすることで、ビス止めのための領域は、防水パッキンの外周以外の部分に設けることができる。従って、ビス止めのために筐体が大型化することを防止できる。   Moreover, by setting it as the said structure, the area | region for screwing can be provided in parts other than the outer periphery of a waterproof packing. Therefore, it is possible to prevent the casing from being enlarged for screwing.

さらに、第１ケーシングと第２ケーシングを係合する係止部を具えることで、組立時に係止部により仮止めを行なうことができ、ビス止めを容易に行なうことができる。なお、係止部による係合のみであれば、筐体に衝撃が加わった際に係止部どうしの係合が外れてしまう虞がある。しかしながら、本発明では仮止め後、防水パッキンの圧縮方向に対して非平行な向きのビス止めを行なっているため、筐体に衝撃が加わっても、係止部が外れることはなく、第１ケーシングと第２ケーシングの浮き等を防止できる。また、ビス止め又は係止部による係止の何れか一方が破損等した場合であっても、ビス止め又は係止部の他方により第１ケーシングと第２ケーシングの係合状態を維持することができる利点もある。   Further, by providing a locking portion that engages the first casing and the second casing, temporary locking can be performed by the locking portion during assembly, and screwing can be easily performed. In addition, if only the engagement by the locking part is used, there is a possibility that the locking parts are disengaged when an impact is applied to the housing. However, in the present invention, since the screws are fixed in a direction non-parallel to the compression direction of the waterproof packing after the temporary fixing, the locking portion does not come off even if an impact is applied to the housing. The floating of the casing and the second casing can be prevented. In addition, even when either one of the screws or the locking portion is damaged, the engagement state of the first casing and the second casing can be maintained by the other of the screws or the locking portion. There is also an advantage that can be done.

図１は、本発明の一実施形態に係る筐体の斜視図である。FIG. 1 is a perspective view of a housing according to an embodiment of the present invention. 図２は、筐体の分解斜視図である。FIG. 2 is an exploded perspective view of the housing. 図３は、筐体の平面図である。FIG. 3 is a plan view of the housing. 図４は、図３の線Ａ−Ａに沿う断面図である。FIG. 4 is a cross-sectional view taken along line AA in FIG. 図５は、第１ケーシングの凹部を拡大して示す斜視図である。FIG. 5 is an enlarged perspective view showing the concave portion of the first casing. 図６は、第２ケーシングの舌片を拡大して示す斜視図である。FIG. 6 is an enlarged perspective view showing a tongue piece of the second casing. 図７は、図４の丸囲み部Ｂの拡大図である。FIG. 7 is an enlarged view of the circled portion B in FIG.

以下、本発明の防水構造を、デジタルカメラ１２の筐体１０に採用した実施形態について説明する。なお、本発明は、デジタルカメラに限らず、携帯電話機、スマートフォン、タブレット型コンピュータ、ＰＤＡ（Personal Digital Assistant）携帯型音楽プレーヤー、ノート型パソコンなどの防水性の要求される電子機器にも採用できる。また、本発明は、電子機器以外であっても防水性を要求される筐体の防水構造として採用することができる。   Hereinafter, an embodiment in which the waterproof structure of the present invention is employed in the housing 10 of the digital camera 12 will be described. Note that the present invention is not limited to a digital camera, and can also be applied to electronic devices that require waterproofing, such as mobile phones, smartphones, tablet computers, PDA (Personal Digital Assistant) portable music players, and notebook computers. Further, the present invention can be adopted as a waterproof structure for a casing that requires waterproofness even if it is not an electronic device.

図１に示すように、デジタルカメラ１２は、レンズ機構１３やフラッシュ機構１４が前面に設けられたフロントケーシング（以下「第１ケーシング２０」）と、第１ケーシング２０の背面を覆うリアケーシング（以下「第２ケーシング３０」）を具える。   As shown in FIG. 1, the digital camera 12 includes a front casing (hereinafter referred to as “first casing 20”) in which a lens mechanism 13 and a flash mechanism 14 are provided on the front surface, and a rear casing (hereinafter referred to as “first casing 20”). "Second casing 30").

図１乃至図３等に示すように、第１ケーシング２０は、側壁２１が後方に向けて突設されており、側壁２１の先端に第２ケーシング３０との接合面２２が形成されている。また、第２ケーシング３０は、側壁３１が前方に向けて突設されており、側壁３１の先端に第１ケーシング２０との接合面３２が形成されている。   As shown in FIGS. 1 to 3, etc., the first casing 20 has a side wall 21 projecting rearward, and a joining surface 22 with the second casing 30 is formed at the tip of the side wall 21. The second casing 30 has a side wall 31 projecting forward, and a joining surface 32 with the first casing 20 is formed at the tip of the side wall 31.

接合面２２，３２には、図４乃至図７に示すように、夫々防水パッキン４０の嵌装部２３，３３が形成されている。本実施形態では、図５に示すように第１ケーシング２０の嵌装部２３は突条であって、第１ケーシング２０の接合面２２を一周している。また、図６に示すように第２ケーシング３０の嵌装部３３は、前記突条が嵌まる溝条であって、第２ケーシング３０の接合面３２を一周している。   As shown in FIGS. 4 to 7, fitting portions 23 and 33 of the waterproof packing 40 are formed on the joint surfaces 22 and 32, respectively. In the present embodiment, as shown in FIG. 5, the fitting portion 23 of the first casing 20 is a protrusion, and goes around the joint surface 22 of the first casing 20. In addition, as shown in FIG. 6, the fitting portion 33 of the second casing 30 is a groove in which the protrusion is fitted, and goes around the joint surface 32 of the second casing 30.

そして、嵌装部２３，３３に防水パッキン４０を嵌装させた状態で、図２に示すように第１ケーシング２０と第２ケーシング３０を連結し、後述する係止部２７，３７の係合を行なってビス止めする。これにより、図４に示すように、内部に電子部品等を収容する防水空間１６を具備する筐体１０が構成される。   Then, with the waterproof packing 40 fitted to the fitting parts 23 and 33, the first casing 20 and the second casing 30 are connected as shown in FIG. And screw. Thereby, as shown in FIG. 4, the housing | casing 10 which comprises the waterproof space 16 which accommodates an electronic component etc. inside is comprised.

この状態で、防水パッキン４０は、嵌装部２３，３３の突条先端と溝条底面によって圧縮される。すなわち、防水パッキン４０は、第１ケーシング２０と第２ケーシング３０の嵌装部２３，３３により、図７の矢印αの圧縮を受ける。   In this state, the waterproof packing 40 is compressed by the protrusion tips and the groove bottom surfaces of the fitting portions 23 and 33. That is, the waterproof packing 40 is compressed by the arrow α in FIG. 7 by the fitting portions 23 and 33 of the first casing 20 and the second casing 30.

防水パッキン４０の圧縮に対する反発力は、ケーシング２０，３０の開き方向に作用する。そこで、第１ケーシング２０と第２ケーシング３０は、図２や図７に示すように上記した防水パッキン４０の圧縮方向（図７の矢印α）に対して非平行な向きにビス５０を止めて締結する。   The repulsive force against the compression of the waterproof packing 40 acts in the opening direction of the casings 20 and 30. Therefore, the first casing 20 and the second casing 30 have the screws 50 stopped in a direction non-parallel to the compression direction of the waterproof packing 40 (arrow α in FIG. 7) as shown in FIGS. Conclude.

本実施形態では、ビス止めを行なうために、図５及び図６に示すように、第２ケーシング３０に舌片３５を突設し（図６）、第１ケーシング２０に舌片３５の嵌まる凹部２５を凹設し（図５）、ビス止めの位置は、防水パッキン４０とは同一平面にならない位置としている。筐体１０の大型化を防ぐためである。   In the present embodiment, as shown in FIGS. 5 and 6, a tongue piece 35 protrudes from the second casing 30 (FIG. 6), and the tongue piece 35 fits into the first casing 20 in order to perform screwing. A recess 25 is provided (FIG. 5), and the position of the screw is set so as not to be flush with the waterproof packing 40. This is to prevent the casing 10 from becoming large.

より詳細には、舌片３５には、ビス５０の嵌まる貫通孔３６を開設し、凹部２５には、貫通孔３６と対向する位置に予めネジ溝が刻設されたタップ穴２６を形成している。図示の実施形態では、貫通孔３６及びタップ穴２６の開設方向は防水パッキン４０の圧縮方向（図７の矢印α）に対して略垂直（図７の線β方向）である。なお、図示では舌片３５及び凹部２５はケーシング２０，３０に１のみ形成しているが、複数形成することができることは勿論である。   More specifically, a through hole 36 into which the screw 50 is fitted is formed in the tongue piece 35, and a tap hole 26 in which a thread groove is preliminarily formed at a position facing the through hole 36 is formed in the recess 25. ing. In the illustrated embodiment, the opening direction of the through hole 36 and the tap hole 26 is substantially perpendicular (the direction of the line β in FIG. 7) to the compression direction of the waterproof packing 40 (arrow α in FIG. 7). In the drawing, only one tongue piece 35 and recess 25 are formed in the casings 20 and 30. However, it is needless to say that a plurality of tongue pieces 35 and recesses 25 can be formed.

ビス止め方向を上記のように設定することで、ケーシング２０，３０の繰返しの開閉に伴うビス５０の緩みを抑えることができる。また、防水パッキン４０の反発力により、ビス５０が第１ケーシング２０及び／又は第２ケーシング３０に押し付けられるため、ビス５０の緩みをより効果的に抑えることができる。なお、ビス５０の止め方向は、防水パッキン４０の圧縮方向に対して略垂直とすることで、防水パッキン４０の反発方向がビス５０と略直交するから、ビス５０の緩みを最も効果的に抑えることができ、また、たとえビス５０の締付けが不完全であってもケーシングの開きを防止できる。   By setting the screwing direction as described above, it is possible to suppress loosening of the screw 50 that accompanies repeated opening and closing of the casings 20 and 30. Further, since the screw 50 is pressed against the first casing 20 and / or the second casing 30 by the repulsive force of the waterproof packing 40, loosening of the screw 50 can be more effectively suppressed. In addition, since the rebound direction of the waterproof packing 40 is substantially perpendicular to the screw 50 by making the fixing direction of the screw 50 substantially perpendicular to the compression direction of the waterproof packing 40, the loosening of the screw 50 is most effectively suppressed. Moreover, even if the screw 50 is not completely tightened, the casing can be prevented from opening.

また、第１ケーシング２０と第２ケーシング３０には、図５乃至図７に示すように、仮止めの役割をなすと共にケーシング２０，３０の係合状態において、ビス５０が緩んだり外れた場合にフェールセーフの役割をなす係止部２７，３７が夫々形成されている。係止部２７，３７は、係合状態において、防水パッキン４０の圧縮方向（図７の矢印α）に略垂直に抗して係合するよう形成している。   Further, as shown in FIGS. 5 to 7, the first casing 20 and the second casing 30 serve as temporary fixing, and when the screws 50 are loosened or detached in the engaged state of the casings 20 and 30. Locking portions 27 and 37 each serving as a fail-safe are formed. The engaging portions 27 and 37 are formed so as to engage with each other in the engaged state against the compression direction of the waterproof packing 40 (arrow α in FIG. 7) substantially perpendicularly.

本実施形態では、係止部２７，３７は、図５及び図６に示すように、前述の第１ケーシング２０の凹部２５に防水パッキン４０の圧縮方向（図７の矢印α）に対して係止面２８が略垂直に突設された第１係止部２７と、第２ケーシング３０の舌片３５に防水パッキン４０の圧縮方向に対して係止面３８が略垂直に形成された孔からなる第２係止部３７である。図示では、防水パッキン４０の圧縮方向に対して略平行に並ぶようにビス５０と係止部２７，３７を配置している。   In the present embodiment, as shown in FIGS. 5 and 6, the locking portions 27 and 37 are engaged with the recess 25 of the first casing 20 in the compression direction of the waterproof packing 40 (arrow α in FIG. 7). A first locking portion 27 having a stop surface 28 projecting substantially vertically, and a hole in which a locking surface 38 is formed substantially perpendicular to the compression direction of the waterproof packing 40 on the tongue piece 35 of the second casing 30. It is the 2nd latching | locking part 37 which becomes. In the drawing, the screws 50 and the locking portions 27 and 37 are arranged so as to be arranged substantially parallel to the compression direction of the waterproof packing 40.

係止部２７，３７は、図２に示すように、第１ケーシング２０と第２ケーシング３０とを組み立てる際に、舌片３５を凹部２５に沿ってスライドさせたときに、図７に示すように、第１係止部２７が第２係止部３７に嵌まって、ケーシング２０，３０どうしを仮止めする。   As shown in FIG. 2, the locking portions 27 and 37 are formed when the tongue piece 35 is slid along the recess 25 when the first casing 20 and the second casing 30 are assembled. In addition, the first locking portion 27 is fitted into the second locking portion 37 to temporarily fix the casings 20 and 30 together.

仮止めによって、第１ケーシング２０と第２ケーシング３０は開いてしまうことがなく、舌片３５の貫通孔３６と凹部２５のタップ穴２６が位置合わせされる。従って、この状態でビス５０を貫通孔３６からタップ穴２６に挿通し、ビス止めすればよい。   The first casing 20 and the second casing 30 are not opened by temporary fixing, and the through hole 36 of the tongue piece 35 and the tap hole 26 of the recess 25 are aligned. Therefore, in this state, the screw 50 may be inserted into the tap hole 26 from the through hole 36 and screwed.

係止部２７，３７は、図７に示すように、係止面２８，３８が、防水パッキン４０の圧縮方向（矢印α）に対して略垂直に面当たりするから、仮止め状態で防水パッキン４０の反発力によって、第１ケーシング２０と第２ケーシング３０が外れてしまうことを防止できる。また、ビス止め後においては、ビス５０が緩んだり外れた場合であっても、係止部２７，３７が、防水パッキン４０の反発力に抗して係合状態を維持するから、第１ケーシング２０と第２ケーシング３０が外れてしまうことはなく、フェールセーフの役割をなす。   As shown in FIG. 7, the locking portions 27 and 37 have the locking surfaces 28 and 38 that are substantially perpendicular to the compression direction (arrow α) of the waterproof packing 40. The repulsive force of 40 can prevent the first casing 20 and the second casing 30 from being detached. In addition, even after the screw 50 is loosened or removed, the locking portions 27 and 37 maintain the engaged state against the repulsive force of the waterproof packing 40 after the screw is fixed. 20 and the 2nd casing 30 do not come off, and the role of fail safe is made.

また、防水パッキン４０の圧縮方向に対して略平行に並べてビス５０と係止部２７，３７を配置したが、ビス５０と係止部２７，３７を防水パッキン４０の圧縮方向に略垂直等の並びとしてもよい。   Further, the screws 50 and the locking portions 27 and 37 are arranged substantially parallel to the compression direction of the waterproof packing 40. However, the screws 50 and the locking portions 27 and 37 are arranged substantially perpendicular to the compression direction of the waterproof packing 40. It may be arranged.

本発明の筐体１０の防水構造によれば、第１ケーシング２０と第２ケーシング３０を防水パッキン４０の圧縮方向と非平行にビス止め或いはビス止めと係合を行なっている。これにより、従来のように防水パッキンの外周に防水パッキンの圧縮方向と平行にビス止めために、防水パッキンの外周にビス止めのための領域を形成する必要がない。従って、筐体の大型化も防止でき、筐体の大きさが同じであれば、防水パッキン４０をケーシング２０，３０の外周側に近接して配置できることで、防水空間１６を大きく採ることができる利点もある。   According to the waterproof structure of the casing 10 of the present invention, the first casing 20 and the second casing 30 are engaged with a screw or a screw stop in non-parallel to the compression direction of the waterproof packing 40. Thereby, it is not necessary to form the area | region for screwing in the outer periphery of a waterproof packing in order to screw in the outer periphery of a waterproof packing in parallel with the compression direction of a waterproof packing like before. Accordingly, an increase in the size of the housing can be prevented, and if the size of the housing is the same, the waterproof packing 16 can be disposed close to the outer peripheral side of the casings 20 and 30, so that the waterproof space 16 can be increased. There are also advantages.

上記説明は、本発明を説明するためのものであって、特許請求の範囲に記載の発明を限定し、或いは範囲を限縮するように解すべきではない。また、本発明の各部構成は、上記実施例に限らず、特許請求の範囲に記載の技術的範囲内で種々の変形が可能であることは勿論である。   The above description is for explaining the present invention, and should not be construed as limiting the invention described in the claims or limiting the scope thereof. Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and various modifications can be made within the technical scope described in the claims.

たとえば、上記実施形態では、説明を判り易くするために、第１ケーシング２０、第２ケーシング３０と称しているが、これらの構成、たとえば、凹部２５や舌片３５、係止部２７，３７は、何れに設けても構わない。また、貫通孔３６及びタップ穴２６と、係止部２７，３７の位置も上記に限定されるものではなく、これらの位置を入れ替えても構わない。同様に、嵌装部２３，３３についても、第１ケーシング２０を溝条、第２ケーシング３０を突条としてもよい。さらに、実施形態では、第２ケーシング３０から舌片３５を延設してネジ止めや係合を行なっているが、ケーシング２０，３０に直接貫通孔３６、タップ穴２６、係止部２７，３７を設けることもできる。また、タップ穴２６も予めネジ溝を刻設した構成であるが、セルフタップであってもよい。   For example, in the above embodiment, the first casing 20 and the second casing 30 are referred to in order to make the explanation easy to understand, but these configurations, for example, the concave portion 25, the tongue piece 35, and the locking portions 27 and 37 are Any of these may be provided. Further, the positions of the through hole 36 and the tap hole 26 and the locking portions 27 and 37 are not limited to the above, and these positions may be interchanged. Similarly, for the fitting portions 23 and 33, the first casing 20 may be a groove and the second casing 30 may be a protrusion. Furthermore, in the embodiment, the tongue piece 35 is extended from the second casing 30 and screwed or engaged, but the through holes 36, the tap holes 26, the locking portions 27, 37 are directly formed in the casings 20, 30. Can also be provided. Further, the tap hole 26 has a structure in which a thread groove is previously engraved, but may be a self-tap.

上記実施形態では、１のビス止めに対して１の係止部を設けているが、これらの対応関係は１対１に限らず、たとえば、１のビス止めに対して２以上の係止部、２以上のビス止めに対して１の係止部等となるようにしても構わない。   In the above-described embodiment, one locking portion is provided for one screw stop, but the corresponding relationship is not limited to 1: 1, and for example, two or more locking portions for one screw stop. One locking portion or the like may be provided for two or more screws.

また、本発明の防水構造は、筐体１０のすべてのビス止め或いは係合箇所に採用することが望まれるが、一部にのみ採用するようにしてもよいことは勿論である。   In addition, the waterproof structure of the present invention is desirably employed for all screwing or engaging portions of the housing 10, but it is needless to say that the waterproof structure may be employed only for a part.

１０ 筐体
２０ 第１ケーシング
２２ 接合面（第１ケーシング）
２５ 凹部（第１ケーシング）
２６ タップ穴（第１ケーシング）
２７ 第１係止部（第１ケーシング）
３０ 第２ケーシング
３２ 接合面（第２ケーシング）
３５ 舌片（第２ケーシング）
３６ 貫通孔（第２ケーシング）
３７ 第２係止部（第２ケーシング）
４０ 防水パッキン
５０ ビス
α 防水パッキンの圧縮方向
β ビス止め方向 10 Housing 20 First casing 22 Joint surface (first casing)
25 Recess (first casing)
26 Tap hole (first casing)
27 First locking portion (first casing)
30 Second casing 32 Joint surface (second casing)
35 Tongue piece (second casing)
36 Through hole (second casing)
37 Second locking portion (second casing)
40 Waterproof packing 50 Screw α Compression direction of waterproof packing β Screw fixing direction

Claims (5)

第１ケーシングと、
前記第１ケーシングと連結される第２ケーシングと、
前記第１ケーシングと前記第２ケーシングの接合面に嵌装され、前記接合面によって圧縮される防水パッキンと、
前記第１ケーシングと前記第２ケーシングとを締結するビスと、
を具え、
ビス止め方向は、前記防水パッキンの圧縮方向と非平行である、
ことを特徴とする、筐体の防水構造。 A first casing;
A second casing coupled to the first casing;
A waterproof packing that is fitted to the joint surface of the first casing and the second casing and is compressed by the joint surface;
A screw for fastening the first casing and the second casing;
With
The screwing direction is non-parallel to the compression direction of the waterproof packing,
The waterproof structure of the housing | casing characterized by the above-mentioned. 前記ビス止め方向は、前記防水パッキンの圧縮方向に対して略垂直である、
請求項１に記載の筐体の防水構造。 The screwing direction is substantially perpendicular to the compression direction of the waterproof packing.
The waterproof structure of the housing according to claim 1. 前記第１ケーシングに形成された第１係止部と、
前記第２ケーシングに形成され、前記第１係止部に係合する第２係止部と、
を具え、
前記第１係止部と前記第２係止部は、前記防水パッキンの圧縮方向に対して略垂直に抗して係合する、
請求項１又は請求項２に記載の筐体の防水構造。 A first locking portion formed on the first casing;
A second locking portion formed on the second casing and engaged with the first locking portion;
With
The first locking portion and the second locking portion engage with each other in a direction substantially perpendicular to the compression direction of the waterproof packing;
The waterproof structure of the housing according to claim 1. 前記第２ケーシングは、前記第１ケーシングの外周に沿って舌片が延設されており、
前記舌片と前記第１ケーシングが前記ビスによって締結される、
請求項１乃至請求項３の何れかに記載の筐体の防水構造。 The second casing has a tongue extending along the outer periphery of the first casing,
The tongue piece and the first casing are fastened by the screw;
The waterproof structure of the housing according to any one of claims 1 to 3. 前記第１ケーシングの外周には、前記舌片の嵌まる凹部が形成されている、
請求項４に記載の筐体の防水構造。 A recess into which the tongue piece fits is formed on the outer periphery of the first casing.
The waterproof structure of the housing according to claim 4.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0531280U (en) * 1991-09-30 1993-04-23 アンリツ株式会社 Case structure
JPH09203949A (en) * 1996-01-29 1997-08-05 Minolta Co Ltd Waterproof camera
JP2002353647A (en) * 2001-05-30 2002-12-06 Vertex Standard Co Ltd Waterproofing device for enclosure
JP2008040348A (en) * 2006-08-09 2008-02-21 Asahi:Kk Waterproof electronic equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0531280U (en) * 1991-09-30 1993-04-23 アンリツ株式会社 Case structure
JPH09203949A (en) * 1996-01-29 1997-08-05 Minolta Co Ltd Waterproof camera
JP2002353647A (en) * 2001-05-30 2002-12-06 Vertex Standard Co Ltd Waterproofing device for enclosure
JP2008040348A (en) * 2006-08-09 2008-02-21 Asahi:Kk Waterproof electronic equipment

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