JP3901545B2

JP3901545B2 - Housing with fitting structure

Info

Publication number: JP3901545B2
Application number: JP2002056755A
Authority: JP
Inventors: 栄治南
Original assignee: Toa Corp
Current assignee: Toa Corp
Priority date: 2002-03-04
Filing date: 2002-03-04
Publication date: 2007-04-04
Anticipated expiration: 2022-03-04
Also published as: JP2003258449A

Description

【０００１】
【発明の属する技術分野】
本発明は、嵌合構造を備えた筐体に関するものである。
【０００２】
【従来の技術】
図７は従来の嵌合構造を有する筐体の一例として、カバー２０が取り外された状態の側面図を示す。図８は図７の筐体の斜視図である。図７及び図８に示すとおり、筐体は、本体１０とカバー２０とから構成されている。カバー２０の外面の上下左右の幅は、本体１０の外面と等しくなるように構成されている。カバー２０には、カバー２０から突出し、爪先端３５が先端に形成された断面Ｌ字状の嵌合爪３０が互いに対向するように設けられている。本体１０には、嵌合爪３０と嵌合するように設けられた断面Ｌ字状の矩形状からなる嵌合穴５０と、カバー２０を本体１０に導くためのガイド部４０とが本体１０の前面に設けられている。ガイド部４０は、カバー２０の厚み分だけ本体１０よりも一回り小さく外周が形成されている。カバー２０をガイド部４０にかぶせるようにしながら本体１０に取り付けると、カバー２０の外面と本体１０の外面とが一致した状態で両者が係合される。
【０００３】
図９は前記筐体における嵌合穴５０と嵌合爪３０との係合部分の拡大図を示し、図９（ａ）は、筐体の嵌合穴と折り爪との間に設けられたマージンを表す説明図、図９（ｂ）は筐体の折り爪が嵌合穴の一辺に接触している時の説明図を示している。図９（ａ）に示すとおり、嵌合穴５０の穴先端５５は、カバー２０の着脱が容易なように、嵌合爪３０の爪先端３５に対してマージン（Ｍ）を持って形成されている。嵌合爪３０と嵌合穴５０とは、面で接触するため図９（ｂ）に示すように、例えばカバー２０と本体１０とを離す方向（図中矢印方向）に引っ張り（テンション）が生じている場合、図中矢印方向のぐらつきは低減しているが、矢印と交差する方向、例えば両者が接する面に沿う方向のぐらつきは抑えることができない。
【０００４】
カバー２０と本体１０の嵌合動作は次の通りである。カバー２０は、ガイド部４０により本体１０に導かれる。カバー２０に設けられた嵌合爪３０が本体１０に設けられた嵌合穴５０にはめ込まれることにより、カバー２０は本体１０に固定される。
上記のような構造の筐体は、カバー２０を本体１０から取り外す際には、ガイド部４０が障害となって、カバー２０の取り外しが容易でない。一方で、嵌合穴５０と嵌合爪３０とが面で接する構成となっているため、カバー２０が本体１０に固定された後であっても両者が接する面と交差する方向にぐらつきが生じ易く、外力に対して外れやすい構造となっている。このようにカバー２０の取り外しの際には作業効率が悪く、取り付け後には安定性が悪い。
【０００５】
【発明が解決しようとする課題】
そこで、取り付け後の安定性を高めるために、ネジによりカバー２０と本体１０を固定することも考えられている。図１０は従来の嵌合構造を有する筐体の他の一例の側面図を示している。図１０において、図７と同一の符号番号で示した構成要素は前記と同一の意味で使用している。カバー２０には、嵌合爪３０と対向する位置にネジ穴８０が設けられている。ネジ７０をネジ穴８０にネジ止めすることにより、本体１０とカバー２０を完全に固定する。前記のような構成にすると、本体１０とカバー２０の取り付け後のぐらつきは減少する。しかし、着脱の際にネジの取り付け及び取り外しが必要であり、かつ、上記と同様にガイド部４０が障害となって取り外しが容易でないため作業効率は改善できていない。
【０００６】
本体１０にカメラ機能を搭載した場合、更なる問題が生じる。図１１は図７における本体に、レンズや撮像素子、必要に応じて絞りやシャッター等の光量調節手段を搭載した監視カメラの側面図を示している。本体１０のガイド部４０の前面には、レンズ６１と焦点調節部６２を備えたレンズ部６０が設けられている。このような構成の場合、ガイド部４０が障害となってカバー２０の取り外しが容易でないために、無理に力を加えて外す場合が多い。この時、力を加えられたカバー２０が焦点調節部６２と接触する事により焦点調整がずれるという問題が生じる。また、固定設置の監視カメラの場合、本体１０に力が加わることによりカメラの方向がずれてしまうという問題が生じる。さらに、ズームレンズを使用しているときは、カバー２０がズーム調整部と接触する事で画角調整がずれるという問題も生じる。
【０００７】
そこで、本発明は、着脱の際の作業効率を向上させる嵌合構造を有する筐体を提供することを目的とする。また、本発明は、係合後の安定性が向上する嵌合構造を提供することを目的とする。
【０００８】
上記課題を解決するために、本願第１発明は、本体と、前記本体に取り付けられる蓋体と、前記本体の前面に、互いに対向する位置において前記本体から突出して設けられた少なくとも一対の第１嵌合部と、前記本体と前記蓋体とを係合させた場合に前記いずれかの第１嵌合部にそれぞれ嵌合するように、前記蓋体に設けられた少なくとも一対の第２嵌合部と、前記蓋体に設けられ、前記第１嵌合部と前記第２嵌合部との嵌合を誘導する少なくとも一対のガイド部とを含み、前記第１及び第２嵌合部は、前記蓋体の開口縁をたわませることではずれるように形成され、前記第２嵌合部は、前記蓋体から突出した突出部を有し、前記第１嵌合部は前記蓋体の着脱方向に突出しており、その先端が前記本体の内側に傾斜し、かつ前記第１嵌合部の先端が内側に傾斜し始める部分には、前記第２嵌合部の突出部が嵌合する開口を有する貫通孔が形成されており、前記貫通孔の外側面の開口面積は、前記貫通孔の内側面の開口面積よりも大きくなるように形成されている、嵌合構造を有する筐体を提供する。
本体及び蓋体は、第１嵌合部と第２嵌合部とにより固定可能である。さらに、蓋体をたわませて容易に取り外しができ、作業効率の改善が可能である。
本体と蓋体とを係合させた場合に、第１嵌合部の開口と第２嵌合部の突出部とが嵌合するので嵌合を強化することが可能である。開口は、貫通孔または凹部により形成されている。
第１嵌合部の先端が、本体の内側に傾斜していることにより、蓋体及び第２嵌合部を容易に第１嵌合部に導くことが可能である。
第１嵌合部の外側面の開口面積が第１嵌合部の内側面の開口面積よりも大きくなるように形成されているので、取り付け時の係合安定性を保ちつつ着脱が容易となる。
【０００９】
本願第２発明は、第１発明において、前記突出部の断面形状及び前記開口は円状である、嵌合構造を有する筐体を提供する。円柱状の突出部の側面が、貫通孔または凹部により形成される筒状の内面に接するので、両者の接触部分の形状が直線状となり、ぐらつきにくい。そのため外力に対して強い構成となる。
【００１０】
本願第３発明は、第１発明において、前記第１嵌合部は、前記蓋体の着脱方向に突出しており、かつ前記蓋体の内面と接触するアーム部を有し、前記ガイド部は、前記本体と前記蓋体とを係合させた場合に、前記アーム部がはまるように形成されている嵌合構造を有する筐体を提供する。
蓋体内のガイド部に沿って第１嵌合部のアーム部を移動させることで、第２嵌合部と第１嵌合部の位置合わせを確実かつ容易にできる。
【００１１】
本願第４発明は、第１発明において、前記本体は、レンズ及び撮像素子をさらに含み、前記蓋体は、レンズカバーである嵌合構造を有する筐体を提供する。
蓋体をたわませることにより、レンズ及び撮像素子を含む本体から蓋体を容易に取り外しできる。よって、本体に無理な力が加わることが低減され、調整されている焦点のずれや、カメラ方向のずれを防ぐことができる。さらにズームレンズを使用しているときは、蓋体がズーム調整部と接触することによる画角のずれも防止できる。
【００１７】
【発明の実施の形態】
以下に図面を参照して、本発明の実施形態を説明する。図１は本発明の第１実施形態例に係る嵌合構造を有する筐体の斜視図、図２は図１における支持部の拡大図、図３は図１におけるカバーの拡大図、図４は図１における嵌合爪とガイド部の拡大図、図５は図１における屈曲した支持部の拡大側面図を示している。以下、図１から図５に沿って説明を行う。
【００１８】
筐体は、主に、断面が矩形状の本体１０と力を加えると若干たわむ材質例えば樹脂からなるカバー２０とから構成されている。本体１０とカバー２０とは、両者を係合させた状態で両者の外面が概ね滑らかに連続するように形成されている。本体１０には、少なくとも１対の支持部９０が互いに対向するように設けられている。これらの支持部９０は、本体１０の一面のうちカバー２０で覆われる面に、その面と交差する方向に突出して形成されている（図１参照）。支持部９０は、本体１０とカバー２０とが係合した時に、カバー２０の内面と接触する合わせ面１１０を有しており、合わせ面１１０上には嵌合孔１００が設けられている。支持部９０の先端は、後述するレール状のガイド部１４０にはめ込みやすいように、徐々に狭まる形状例えば半円状となっていると好ましい（図２参照）。カバー２０には、本体側の嵌合孔１００と嵌合するようにカバー２０の内面から突出する嵌合爪１３０が設けられている。また、カバー２０には、嵌合孔１００と嵌合爪１３０との位置あわせが容易なように、ガイド部１４０が設けられている（図３、４参照）。
【００１９】
以下に各構成部分の詳細説明を行う。
本体１０の支持部９０に形成された嵌合孔１００は、カバー２０の嵌合爪１３０の形状に合わせて形成される。嵌合孔１００及び嵌合爪１３０の断面形状は、矩形状、円状等、どのような形状であっても良いが、円状であることが好ましい。こうすることで、嵌合爪１３０と嵌合孔１００とが接触した状態におけるぐらつきが低減される。また、嵌合爪１３０の先端を半球状に形成すると、カバー２０を本体１０に取り付ける時に、嵌合爪１３０が嵌合孔１００にはまりやすく好ましい。さらに、嵌合爪１３０が嵌合孔１００にはめ込まれた時には、嵌合爪１３０が嵌合孔１００より突出する形状であることが好ましい。前記のような形状とすることで、嵌合爪１３０と嵌合孔１００との嵌合を強化することが可能である。なお、支持部９０に嵌合孔１００に代え、凹部を設けた構成も考えられる。
【００２０】
図５に示すように、支持部９０の形状は、その先端が内側に曲がって形成されていると、本体１０にカバー２０を容易に導入可能であり好ましい。支持部９０の先端部が曲がる角度は特に限定されないが、嵌合爪１３０を嵌合孔１００に容易に導入できる程度に本体の内側に向かって曲がって形成されていることが好ましい。
【００２１】
さらに、嵌合孔１００は、合わせ面１１０上及び支持部９０のカーブ開始部分に形成されていると好ましい。この構成により、嵌合孔１００の外面上の開口１００ａの面積が内面上の開口１００ｂの面積よりも広くなり、取り付け時の係合安定性を保ちつつ一段と着脱が容易となる。また、嵌合爪１３０の着脱方向に、嵌合孔１００の外側の開口１００ａが若干開いた構成となるため、さらに着脱が容易となる。
【００２２】
図４に示すように、ガイド部１４０は、嵌合爪１３０の両側にレール状に設けられている。レール状のガイド部１４０は、その間に支持部９０の合わせ面１１０がはまるように形成されていると好ましい。ガイド部１４０に沿って支持部９０が導入されるので、嵌合爪１３０と嵌合孔１００との位置合わせが確実かつ容易にできる。
【００２３】
本発明の第１実施形態例として、支持部９０に嵌合孔１００を、カバー２０に嵌合爪１３０を設けているが、支持部９０に嵌合爪１３０を、カバー２０に嵌合孔１００を設ける構成としても本発明の効果を達成することが可能である。
さらに、図６に示すように、本体１０をレンズや撮像素子、必要に応じて絞りやシャッター等の光量調節手段を搭載した監視カメラとすることも可能である。このような構成のカメラの場合、カバー２０をたわませることにより容易に着脱ができるので、作業効率を向上することができる。その際に、本体１０やカバー２０に無理な力がかからないので、すでに調整されている焦点や、カメラの方向がずれてしまうことを防止できる。さらにズームレンズを使用しているときは、カバー２０がズーム調整部と接触することによる画角のずれも防止できる。
【００２４】
カバー２０と本体１０との嵌合動作は次の通りである。支持部９０がガイド部１４０に沿って移動することにより、カバー２０は本体１０に導かれる。嵌合爪１３０が支持部９０に接触すると、カバー２０は、嵌合爪１３０の突出分だけ押し広げられる。嵌合爪１３０が嵌合孔１００まで導かれてはめ込まれると、押し広げられたカバー２０のたわみは無くなり、カバー２０は本体１０に固定される。この時のカバー２０と本体１０との固定は、カバー２０と接触する合わせ面１１０と、嵌合爪１３０及び内側の嵌合孔１００ｂの嵌合と、本体１０と接触するカバー２０の接触面１４５により行われる。
【００２５】
本体１０からのカバー２０の取り外し動作は次の通りである。カバー２０の嵌合爪１３０が設けられていない側面を押すと、嵌合爪１３０が設けられている側面が外側にたわむ。カバー２０がたわむことにより嵌合爪１３０が嵌合孔１００より外れ、カバー２０を本体１０から取り外すことができる。
【００２６】
【発明の効果】
本発明を用いれば、着脱が容易で、取り付け後の安定性が向上する嵌合構造を有する筐体を提供することができる。
【図面の簡単な説明】
【図１】本発明の第１実施形態例に係る嵌合構造を有する筐体の斜視図。
【図２】本発明の第１実施形態例に係る支持部の拡大図。
【図３】本発明の第１実施形態例に係るカバーの拡大図。
【図４】本発明の第１実施形態例に係る嵌合爪とガイド部の拡大図。
【図５】本発明の第１実施形態例に係る屈曲した支持部の側面図。
【図６】本発明による第１実施形態例を、光量調節手段を搭載した監視カメラに適用した場合の斜視図。
【図７】従来の嵌合構造を有する筐体の側面図。
【図８】従来の嵌合構造を有する筐体の斜視図。
【図９】（ａ）従来の嵌合構造を有する筐体の嵌合穴と折り爪の間に設けられたマージンを表す平面図。
（ｂ）従来の嵌合構造を有する筐体の折り爪が嵌合穴の一辺に接触している時の平面図。
【図１０】従来の嵌合構造を有する筐体の他の側面図。
【図１１】従来の嵌合構造を有する筐体の本体に光量調節手段を搭載した監視カメラの側面図。
【符号の説明】
１０：本体
２０：カバー
３０：嵌合爪
３５：爪先端
４０：ガイド部
５０：嵌合穴
５５：穴先端
６０：レンズ部
６１：レンズ
６２：焦点調節部
７０：ネジ
８０：ネジ穴
９０：支持部
１００：嵌合孔
１１０：合わせ面
１３０：嵌合爪
１４０：ガイド部
１４５：接触面[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a housing having a fitting structure.
[0002]
[Prior art]
FIG. 7 is a side view showing a state where the cover 20 is removed as an example of a housing having a conventional fitting structure. FIG. 8 is a perspective view of the housing of FIG. As shown in FIGS. 7 and 8, the casing is composed of a main body 10 and a cover 20. The vertical and horizontal widths of the outer surface of the cover 20 are configured to be equal to the outer surface of the main body 10. The cover 20 is provided with fitting claws 30 having an L-shaped cross section protruding from the cover 20 and having a claw tip 35 formed at the tip thereof so as to face each other. The main body 10 includes a fitting hole 50 having a rectangular shape with an L-shaped cross section provided so as to be fitted to the fitting claw 30 and a guide portion 40 for guiding the cover 20 to the main body 10. It is provided on the front. The guide portion 40 has an outer periphery that is slightly smaller than the main body 10 by the thickness of the cover 20. When the cover 20 is attached to the main body 10 so as to cover the guide portion 40, the outer surface of the cover 20 and the outer surface of the main body 10 are engaged with each other.
[0003]
FIG. 9 shows an enlarged view of an engagement portion between the fitting hole 50 and the fitting claw 30 in the housing, and FIG. 9A is provided between the fitting hole and the folding claw of the housing. FIG. 9B is an explanatory view showing a margin, and FIG. 9B shows an explanatory view when the folded claw of the housing is in contact with one side of the fitting hole. As shown in FIG. 9A, the hole tip 55 of the fitting hole 50 is formed with a margin (M) with respect to the claw tip 35 of the fitting claw 30 so that the cover 20 can be easily attached and detached. Yes. Since the fitting claw 30 and the fitting hole 50 are in contact with each other on the surface, as shown in FIG. 9B, for example, a tension (tension) is generated in a direction separating the cover 20 and the main body 10 (arrow direction in the figure). In this case, the wobble in the arrow direction in the figure is reduced, but the wobble in the direction intersecting the arrow, for example, the direction along the surface where both are in contact cannot be suppressed.
[0004]
The fitting operation of the cover 20 and the main body 10 is as follows. The cover 20 is guided to the main body 10 by the guide portion 40. The cover 20 is fixed to the main body 10 by fitting the fitting claws 30 provided on the cover 20 into the fitting holes 50 provided on the main body 10.
When the cover 20 is removed from the main body 10 in the case having the above structure, the guide portion 40 becomes an obstacle, and the cover 20 is not easily removed. On the other hand, since the fitting hole 50 and the fitting claw 30 are in contact with each other on the surface, even after the cover 20 is fixed to the main body 10, wobbling occurs in the direction intersecting with the surface with which both are in contact. It has a structure that is easy to come off against external force. As described above, the work efficiency is poor when the cover 20 is removed, and the stability is poor after the attachment.
[0005]
[Problems to be solved by the invention]
Therefore, in order to increase the stability after attachment, it is also considered to fix the cover 20 and the main body 10 with screws. FIG. 10 shows a side view of another example of a housing having a conventional fitting structure. In FIG. 10, the components indicated by the same reference numerals as in FIG. 7 are used in the same meaning as described above. A screw hole 80 is provided in the cover 20 at a position facing the fitting claw 30. The main body 10 and the cover 20 are completely fixed by screwing the screw 70 into the screw hole 80. With the configuration as described above, the wobble after the main body 10 and the cover 20 are attached is reduced. However, it is necessary to attach and detach screws when attaching and detaching, and the work efficiency cannot be improved because the guide portion 40 becomes an obstacle and is not easily removed as described above.
[0006]
When the camera function is mounted on the main body 10, a further problem arises. FIG. 11 shows a side view of a surveillance camera in which the main body in FIG. 7 is equipped with a lens, an image sensor, and light quantity adjusting means such as a diaphragm and a shutter as necessary. A lens unit 60 including a lens 61 and a focus adjustment unit 62 is provided on the front surface of the guide unit 40 of the main body 10. In such a configuration, since the guide portion 40 is an obstacle and it is not easy to remove the cover 20, the cover 20 is often removed with force. At this time, there is a problem that the focus adjustment is shifted due to the contact of the cover 20 to which the force is applied with the focus adjustment unit 62. Further, in the case of a fixedly installed monitoring camera, there is a problem that the direction of the camera is shifted due to the force applied to the main body 10. Furthermore, when the zoom lens is used, there arises a problem that the angle of view is shifted due to the cover 20 coming into contact with the zoom adjustment unit.
[0007]
Then, an object of this invention is to provide the housing | casing which has a fitting structure which improves the working efficiency at the time of attachment or detachment. Moreover, an object of this invention is to provide the fitting structure which the stability after engagement improves.
[0008]
In order to solve the above-described problems, the first invention of the present application includes a main body, a lid attached to the main body, and at least a pair of first first protrusions provided on the front surface of the main body so as to protrude from the main body at positions facing each other. At least a pair of second fittings provided on the lid so that when the fitting portion is engaged with the main body and the lid body, the first fitting portion is fitted to each of the first fitting portions. And at least a pair of guide portions that are provided on the lid and guide the fitting of the first fitting portion and the second fitting portion, and the first and second fitting portions are: The second fitting part has a protruding part protruding from the lid, and the first fitting part is attached to and detached from the lid. Projecting in the direction, the tip of which is inclined inward of the main body, and of the first fitting portion A through hole having an opening into which the projecting portion of the second fitting portion is fitted is formed at a portion where the end starts to inward, and the opening area of the outer surface of the through hole is equal to that of the through hole. Provided is a housing having a fitting structure formed so as to be larger than an opening area of an inner surface .
The main body and the lid can be fixed by the first fitting portion and the second fitting portion. Furthermore, the lid can be bent and easily removed, and the work efficiency can be improved.
When the main body and the lid are engaged with each other, the opening of the first fitting portion and the protruding portion of the second fitting portion are fitted, so that the fitting can be strengthened. The opening is formed by a through hole or a recess.
Since the front end of the first fitting portion is inclined toward the inside of the main body, the lid body and the second fitting portion can be easily guided to the first fitting portion.
Since the opening area of the outer surface of the first fitting portion is formed to be larger than the opening area of the inner surface of the first fitting portion, it is easy to attach and detach while maintaining the engagement stability at the time of attachment. .
[0009]
A second invention of the present application provides a housing having a fitting structure according to the first invention, wherein a cross-sectional shape of the protruding portion and the opening are circular. Since the side surface of the columnar protruding portion is in contact with the cylindrical inner surface formed by the through hole or the concave portion, the shape of the contact portion between them is a straight line and is not likely to wobble. Therefore, it becomes a structure strong against external force.
[0010]
According to a third invention of the present application, in the first invention, the first fitting portion has an arm portion that protrudes in an attaching / detaching direction of the lid body and that contacts an inner surface of the lid body, Provided is a housing having a fitting structure formed so that the arm portion is fitted when the main body and the lid are engaged.
By moving the arm part of the first fitting part along the guide part in the lid, it is possible to reliably and easily align the second fitting part and the first fitting part.
[0011]
A fourth invention of the present application provides the housing according to the first invention, wherein the main body further includes a lens and an imaging device, and the lid body is a lens cover.
By bending the lid, the lid can be easily removed from the main body including the lens and the image sensor. Therefore, it is possible to reduce an excessive force applied to the main body, and it is possible to prevent the deviation of the adjusted focus and the deviation of the camera direction. Further, when the zoom lens is used, it is possible to prevent the angle of view from being shifted due to the lid contacting the zoom adjustment unit.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view of a housing having a fitting structure according to a first embodiment of the present invention, FIG. 2 is an enlarged view of a support portion in FIG. 1, FIG. 3 is an enlarged view of a cover in FIG. FIG. 5 is an enlarged side view of the bent support portion in FIG. 1. Hereinafter, description will be made with reference to FIGS. 1 to 5.
[0018]
The casing is mainly composed of a main body 10 having a rectangular cross section and a cover 20 made of a material that bends slightly when a force is applied, for example, resin. The main body 10 and the cover 20 are formed so that the outer surfaces of both of the main body 10 and the cover 20 are generally smoothly continuous. The main body 10 is provided with at least one pair of support portions 90 so as to face each other. These support portions 90 are formed on one surface of the main body 10 so as to protrude in a direction intersecting with the surface covered with the cover 20 (see FIG. 1). The support portion 90 has a mating surface 110 that comes into contact with the inner surface of the cover 20 when the main body 10 and the cover 20 are engaged, and the fitting hole 100 is provided on the mating surface 110. It is preferable that the tip of the support portion 90 has a gradually narrowing shape, for example, a semicircular shape so as to be easily fitted into a rail-shaped guide portion 140 described later (see FIG. 2). The cover 20 is provided with a fitting claw 130 protruding from the inner surface of the cover 20 so as to be fitted to the fitting hole 100 on the main body side. The cover 20 is provided with a guide portion 140 so that the alignment between the fitting hole 100 and the fitting claw 130 is easy (see FIGS. 3 and 4).
[0019]
Details of each component will be described below.
The fitting hole 100 formed in the support portion 90 of the main body 10 is formed according to the shape of the fitting claw 130 of the cover 20. The cross-sectional shape of the fitting hole 100 and the fitting claw 130 may be any shape such as a rectangular shape or a circular shape, but is preferably a circular shape. By doing so, wobble in a state where the fitting claw 130 and the fitting hole 100 are in contact with each other is reduced. In addition, it is preferable that the tip of the fitting claw 130 is formed in a hemispherical shape so that the fitting claw 130 can easily fit into the fitting hole 100 when the cover 20 is attached to the main body 10. Furthermore, it is preferable that when the fitting claw 130 is fitted into the fitting hole 100, the fitting claw 130 protrudes from the fitting hole 100. By setting it as the above shapes, it is possible to reinforce the fitting between the fitting claw 130 and the fitting hole 100. In addition, the structure which provided the recessed part instead of the fitting hole 100 in the support part 90 is also considered.
[0020]
As shown in FIG. 5, it is preferable that the shape of the support portion 90 be formed such that the tip is bent inward, because the cover 20 can be easily introduced into the main body 10. The angle at which the distal end portion of the support portion 90 bends is not particularly limited, but it is preferable that the bend portion 130 is bent toward the inside of the main body so that the fitting claw 130 can be easily introduced into the fitting hole 100.
[0021]
Furthermore, it is preferable that the fitting hole 100 is formed on the mating surface 110 and the curve start portion of the support portion 90. With this configuration, the area of the opening 100a on the outer surface of the fitting hole 100 is larger than the area of the opening 100b on the inner surface, and the attachment and detachment is further facilitated while maintaining the engagement stability at the time of attachment. Moreover, since the opening 100a outside the fitting hole 100 is slightly opened in the attaching / detaching direction of the fitting claw 130, the attachment / detachment is further facilitated.
[0022]
As shown in FIG. 4, the guide portion 140 is provided in a rail shape on both sides of the fitting claw 130. It is preferable that the rail-shaped guide part 140 is formed so that the mating surface 110 of the support part 90 fits between them. Since the support part 90 is introduced along the guide part 140, the positioning of the fitting claw 130 and the fitting hole 100 can be reliably and easily performed.
[0023]
As a first embodiment of the present invention, the fitting hole 100 is provided in the support portion 90 and the fitting claw 130 is provided in the cover 20, but the fitting claw 130 is provided in the support portion 90 and the fitting hole 100 is provided in the cover 20. It is possible to achieve the effects of the present invention even in a configuration in which the above is provided.
Furthermore, as shown in FIG. 6, the main body 10 can be a surveillance camera equipped with a lens, an image sensor, and, if necessary, a light amount adjusting means such as a diaphragm or a shutter. In the case of the camera having such a configuration, it can be easily attached and detached by bending the cover 20, so that the working efficiency can be improved. At that time, since an excessive force is not applied to the main body 10 and the cover 20, it is possible to prevent the already adjusted focus and the direction of the camera from being shifted. Further, when the zoom lens is used, it is possible to prevent the angle of view from being shifted due to the cover 20 coming into contact with the zoom adjustment unit.
[0024]
The fitting operation between the cover 20 and the main body 10 is as follows. The cover 20 is guided to the main body 10 by the support portion 90 moving along the guide portion 140. When the fitting claw 130 comes into contact with the support portion 90, the cover 20 is pushed and expanded by the amount of protrusion of the fitting claw 130. When the fitting claw 130 is guided to the fitting hole 100 and fitted, the cover 20 that has been spread out is not bent, and the cover 20 is fixed to the main body 10. At this time, the cover 20 and the main body 10 are fixed by fitting the mating surface 110 in contact with the cover 20, the fitting claw 130 and the inner fitting hole 100 b, and the contact surface 145 of the cover 20 in contact with the main body 10. Is done.
[0025]
The operation of removing the cover 20 from the main body 10 is as follows. When the side surface of the cover 20 on which the fitting claw 130 is not provided is pressed, the side surface on which the fitting claw 130 is provided bends outward. When the cover 20 is bent, the fitting claw 130 is detached from the fitting hole 100, and the cover 20 can be removed from the main body 10.
[0026]
【The invention's effect】
By using the present invention, it is possible to provide a housing having a fitting structure that is easy to attach and detach and improves the stability after attachment.
[Brief description of the drawings]
FIG. 1 is a perspective view of a housing having a fitting structure according to a first embodiment of the present invention.
FIG. 2 is an enlarged view of a support portion according to the first embodiment of the present invention.
FIG. 3 is an enlarged view of a cover according to the first embodiment of the present invention.
FIG. 4 is an enlarged view of a fitting claw and a guide portion according to the first embodiment of the present invention.
FIG. 5 is a side view of a bent support portion according to the first embodiment of the present invention.
FIG. 6 is a perspective view when the first embodiment according to the present invention is applied to a monitoring camera equipped with a light amount adjusting means.
FIG. 7 is a side view of a housing having a conventional fitting structure.
FIG. 8 is a perspective view of a housing having a conventional fitting structure.
FIG. 9A is a plan view illustrating a margin provided between a fitting hole and a folding claw of a housing having a conventional fitting structure.
(B) The top view when the folding claw of the housing | casing which has the conventional fitting structure is contacting the one side of a fitting hole.
FIG. 10 is another side view of a housing having a conventional fitting structure.
FIG. 11 is a side view of a surveillance camera in which light amount adjusting means is mounted on a main body of a housing having a conventional fitting structure.
[Explanation of symbols]
10: body 20: cover 30: fitting claw 35: claw tip 40: guide portion 50: fitting hole 55: hole tip 60: lens portion 61: lens 62: focus adjusting portion 70: screw 80: screw hole 90: support Part 100: fitting hole 110: mating surface 130: fitting claw 140: guide part 145: contact surface

Claims

The body,
A lid attached to the main body;
At least a pair of first fitting portions provided on the front surface of the main body so as to protrude from the main body at positions facing each other;
At least a pair of second fitting portions provided on the lid body so as to be fitted to any one of the first fitting portions when the main body and the lid body are engaged, and
Including at least a pair of guide portions provided on the lid body for guiding the fitting between the first fitting portion and the second fitting portion;
The first and second fitting portions are formed so as to be displaced by bending the opening edge of the lid,
The second fitting portion has a protruding portion protruding from the lid,
The first fitting portion protrudes in the attaching / detaching direction of the lid body, the tip thereof is inclined inward of the main body, and the tip of the first fitting portion starts to be inclined inward, 2 A through hole having an opening into which the protruding portion of the fitting portion is fitted is formed.
The housing | casing which has a fitting structure formed so that the opening area of the outer surface of the said through-hole may become larger than the opening area of the inner surface of the said through-hole.

Cross-sectional shape and the opening of the projecting portion is circular, the housing having a fitting structure according to claim 1.

The first fitting portion has an arm portion that protrudes in the attaching / detaching direction of the lid body and that contacts the inner surface of the lid body,
The casing having a fitting structure according to claim 1, wherein the guide portion is formed so that the arm portion is fitted when the main body and the lid are engaged.

The housing having a fitting structure according to claim 1, wherein the main body further includes a lens and an imaging device, and the lid is a lens cover.