JP2008177669A - Cover lock mechanism for monitoring video camera - Google Patents

Cover lock mechanism for monitoring video camera Download PDF

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JP2008177669A
JP2008177669A JP2007007117A JP2007007117A JP2008177669A JP 2008177669 A JP2008177669 A JP 2008177669A JP 2007007117 A JP2007007117 A JP 2007007117A JP 2007007117 A JP2007007117 A JP 2007007117A JP 2008177669 A JP2008177669 A JP 2008177669A
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cover
video camera
lock mechanism
camera
camera body
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JP4740161B2 (en
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Tomoyuki Tanaka
伴幸 田中
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Hitachi Ltd
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Hitachi Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a cover lock mechanism for a monitoring video camera such that a cover can be fitted without any tool and can not easily be removed by a third person. <P>SOLUTION: A lock spring 1 which has a projection part 1b at its tip and can be deformed toward the center of a camera main body part is provided to the flank of the camera main body part 6, and a cover hole 4b into which the projection part 1b of the lock spring can be inserted is bored in the peripheral surface of the cover 4. Then the camera main body part 6 is covered with the cover 4 and the lock spring 1 is deformed to the inner side of the cover 4 to fit the projection part 1b into the cover hole 4b from inside the cover 4, thereby fixing the cover 4 to the camera main body part 6. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、監視用ビデオカメラにカバーを取付けて固定するカバーロック機構に関するものである。   The present invention relates to a cover lock mechanism for attaching and fixing a cover to a surveillance video camera.

従来の監視用ビデオカメラは、カメラ本体を外部から保護したり、カメラの撮影自身を目立たないようにするため、カメラ本体にドーム状のカバーを取付けて使用される。一方、カメラの調整や保守点検のために、カバーをカメラ本体から外して作業することが必要になる。   A conventional surveillance video camera is used with a dome-like cover attached to the camera body in order to protect the camera body from the outside and to make the camera's shooting itself inconspicuous. On the other hand, it is necessary to remove the cover from the camera body for adjustment and maintenance of the camera.

カメラ本体とカバーの取付け方法については、各種の提案がなされている。特許文献１では、カバーをカメラ本体にネジで取付ける方法が開示される。ネジ取付け以外の方法としては、特許文献２では、カバーに設けた係合片をカメラ本体に設けた係合溝に係合させるバヨネット方式が開示される。特許文献３では、ドーム筐体をカメラ本体にフックと取り付け金で固定する方法が開示される。   Various proposals have been made on how to attach the camera body and the cover. Patent Document 1 discloses a method of attaching a cover to a camera body with screws. As a method other than screw attachment, Patent Document 2 discloses a bayonet system in which an engagement piece provided on a cover is engaged with an engagement groove provided on a camera body. Patent Document 3 discloses a method of fixing a dome housing to a camera body with a hook and a fitting.

特開２００５−２２１６３７号公報JP 2005-221737 A 特開２００６−７４６５７号公報JP 2006-74657 A 特開２００５−１３６８００号公報JP 2005-136800 A

特許文献１のようにネジ止めによる方法は固定が確実であり、専用の工具を用いることで信頼性が高い。しかしながら、取付け作業に時間がかかり、また工具を用いるため周囲が狭い場所での取付け作業は困難になる。これに対し特許文献２，３の方法は、特別な工具を必要とせずに簡単に取付できる。そして、取付け後にカバーに外力を加えることで簡単に外すことが可能である。その場合、カメラ設置作業者以外の第三者であってもカバーを外すことが容易であり、場合によってはカメラがいたずらされる恐れがある。信頼性が要求される監視用ビデオカメラでは、このようないたずらを受けにくい方法が必要である。   The method by screwing as in Patent Document 1 is surely fixed, and is highly reliable by using a dedicated tool. However, the installation work takes time, and the use of a tool makes it difficult to perform the installation work in a narrow area. On the other hand, the methods of Patent Documents 2 and 3 can be easily attached without requiring a special tool. And it can remove easily by applying external force to a cover after attachment. In this case, it is easy for a third party other than the camera installation worker to remove the cover, and in some cases, the camera may be tampered with. Surveillance video cameras that require reliability need a method that is less susceptible to such tampering.

本発明の目的は、工具不要でカバーの取付けが可能であり、かつ第三者により簡単にカバーを取り外しできない監視用ビデオカメラのカバーロック機構を提供することにある。   An object of the present invention is to provide a cover lock mechanism for a surveillance video camera that can be attached without a tool and cannot be easily removed by a third party.

本発明は、監視用ビデオカメラのカメラ本体部にドーム状のカバーを取付ける際のカバーロック機構であって、カメラ本体部の側面に、先端に突起部を有しカメラ本体部の中心側に変形可能なロックバネを設け、カバーの周面に、ロックバネの突起部が挿入可能なカバー穴を設ける。そして、ロックバネをカバーの内側に変形させ、突起部をカバーの内側からカバー穴に嵌合させることで、カメラ本体部にカバーを固定する構成とする。   The present invention is a cover lock mechanism for attaching a dome-shaped cover to a camera body of a surveillance video camera, and has a protrusion on the side of the camera body and deforms toward the center of the camera body. A possible lock spring is provided, and a cover hole into which a protrusion of the lock spring can be inserted is provided on the peripheral surface of the cover. Then, the cover is fixed to the camera body by deforming the lock spring to the inside of the cover and fitting the protrusion into the cover hole from the inside of the cover.

本発明によれば、カバーの着脱が簡単で短時間で作業ができる。また、カメラ設置作業者以外の第三者がカバーを取り外すことが困難であるため、カメラへのいたずら防止の効果がある。   According to the present invention, the cover can be easily attached and detached, and the work can be performed in a short time. Moreover, since it is difficult for a third party other than the camera installation worker to remove the cover, there is an effect of preventing tampering with the camera.

以下、本発明の実施の形態を図面を用いて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は、本発明にかかる監視用ビデオカメラのカバーロック機構の一実施例を示す図である。図１（ａ）は、監視用ビデオカメラにカバー４を取付ける前のカメラ本体部６の構造を示す。撮影レンズ２ａなどを含むカメラユニット２は、シャーシ３を介しベース部５に固定されている。ベース取付部５ａは、ベース部５を設置面（例えば天井面）に取付け固定する部分である。シャーシ３にはカバー４を取付けるためのシャーシ爪３ａと、取付けたカバーを固定（ロック）するためのロックバネ１を設けている。ロックバネ１は、内側（カメラ本体部の中心側）に変形可能なバネ部１ａと、その先端に外側に向けた突起部１ｂと、カバー取付け時の位置合わせ用マーク（○印）１ｃを有する。   FIG. 1 is a diagram showing an embodiment of a cover lock mechanism of a surveillance video camera according to the present invention. FIG. 1A shows the structure of the camera body 6 before the cover 4 is attached to the surveillance video camera. A camera unit 2 including a photographic lens 2 a and the like is fixed to a base portion 5 via a chassis 3. The base attachment portion 5a is a portion that attaches and fixes the base portion 5 to an installation surface (for example, a ceiling surface). The chassis 3 is provided with a chassis claw 3a for attaching the cover 4 and a lock spring 1 for fixing (locking) the attached cover. The lock spring 1 has a spring part 1a that can be deformed inwardly (center side of the camera main body part), a protruding part 1b that faces outward at the tip, and an alignment mark (o mark) 1c when the cover is attached.

図１（ｂ）は、カバー４の構造とこれをカメラ本体部６に取付ける状態を示す図である。カバー４には、前記ロックバネ１の突起部１ｂと嵌合するカバー穴４ｂ、カバー取付け時の位置合わせマーク（▽印）４ｃを有する。また、前記シャーシ爪３ａと係合する図示しないカバー爪４ａを有する。カバー４を取付ける際は、まず、カバー４のマーク４ｃの位置をシャーシのマーク１ｃの位置に合わせる。そして、カバー４を矢印Ｚ方向に移動しカメラ本体部６に被せる。   FIG. 1B is a diagram illustrating the structure of the cover 4 and a state in which the cover 4 is attached to the camera body 6. The cover 4 has a cover hole 4b that fits into the protruding portion 1b of the lock spring 1 and an alignment mark (▽ mark) 4c when the cover is attached. Moreover, it has a cover claw 4a (not shown) that engages with the chassis claw 3a. When attaching the cover 4, first, the position of the mark 4c on the cover 4 is matched with the position of the mark 1c on the chassis. Then, the cover 4 is moved in the direction of the arrow Z and put on the camera body 6.

図１（ｃ）は、被せたカバー４を矢印Ｘ方向に回転させる状態を示す。カバー４を回転させると、カバー爪４ａはカメラ本体部６のシャーシ爪３ａと係合することにより、カバー４はカメラ本体部６に接合される。そしてカバー穴４ｂがロックバネ１の突起部１ｂに対向するまで回転させると、突起部１ｂはカバー穴４ｂに嵌合する。   FIG. 1C shows a state in which the covered cover 4 is rotated in the arrow X direction. When the cover 4 is rotated, the cover claw 4 a is engaged with the chassis claw 3 a of the camera body 6, so that the cover 4 is joined to the camera body 6. When the cover hole 4b is rotated until it faces the protrusion 1b of the lock spring 1, the protrusion 1b is fitted into the cover hole 4b.

図１（ｄ）は、突起部１ｂがカバー穴４ｂに嵌合し、カバーロックが完了した状態を示す。突起部１ｂはバネ部１ａの復元力により、カバー穴４ｂに内側から押し込まれて嵌合している。よって、カバー４に回転方向の外力を加えても、カバー穴４ｂがストッパーとなって回転することを阻止する。   FIG. 1D shows a state in which the protrusion 1b is fitted in the cover hole 4b and the cover lock is completed. The protrusion 1b is pushed and fitted into the cover hole 4b from the inside by the restoring force of the spring 1a. Therefore, even if an external force in the rotation direction is applied to the cover 4, the cover hole 4b is prevented from rotating as a stopper.

次に、カバー４をカメラ本体部６から取り外す場合を説明する。図１（ｄ）の状態で突起部１ｂにピン先などで外力を印加し、突起部１ｂをＹ方向に押し込みながらカバー４を矢印Ｘ’方向に逆回転させる。すると、突起部１ｂとカバー穴４ｂとの嵌合が外れ、カバー４は回転自由になる。そしてカバー爪４ａとシャーシ爪３ａの係合を外せば、図１（ｂ）のようにカバー４をカメラ本体部６から取り外すことができる。   Next, the case where the cover 4 is removed from the camera body 6 will be described. In the state of FIG. 1D, an external force is applied to the protrusion 1b with a pin tip or the like, and the cover 4 is rotated in the arrow X 'direction while pushing the protrusion 1b in the Y direction. Then, the projection 1b and the cover hole 4b are disengaged, and the cover 4 is freely rotatable. If the engagement between the cover claw 4a and the chassis claw 3a is disengaged, the cover 4 can be removed from the camera body 6 as shown in FIG.

このようにカバーを取付けるときは、ドライバなどの特殊工具なしで簡単に作業ができる。また、取付け用ネジを使用していないので、作業中においてネジを紛失するようなトラブルも発生しない。一旦カバーの取付けが完了すると、突起部１ｂとカバー穴４ｂとが嵌合しており、単にカバーに外力を与えても外すことはできない。よって、カメラ設置作業者以外の第三者がカバーを外そうとしても無理である。一方、監視カメラの設置業者は、本実施例のロック機構を知っているので、手持ちのピンや針金（先端が突起部以下の細いもの）を用いて、簡単にカバー取り外すことができる。   When attaching the cover in this way, the work can be easily performed without a special tool such as a screwdriver. In addition, since no mounting screws are used, troubles such as losing screws during work do not occur. Once the attachment of the cover is completed, the projection 1b and the cover hole 4b are fitted, and cannot be removed simply by applying an external force to the cover. Therefore, it is impossible for a third party other than the camera installer to remove the cover. On the other hand, since the surveillance camera installer knows the locking mechanism of this embodiment, the cover can be easily removed using a hand-held pin or wire (a thin tip whose tip is below the protrusion).

図２は、本実施例のカバーロック機構について詳細に示す図である。   FIG. 2 is a diagram showing in detail the cover lock mechanism of the present embodiment.

カメラ本体部６の側面に設けたロックバネ１は、金属板バネからなるバネ部１ａと樹脂材からなる突起部１ｂで構成している。バネ部１ａは内側に変形可能であって、カバーロック時に外力に耐えるよう金属板を使用し強度を上げている。また金属板を使用することで、カメラユニット２とカバー４との狭い隙間にも配置可能である。なお、バネ部１ａを非金属の樹脂で構成することも可能である。   The lock spring 1 provided on the side surface of the camera body 6 includes a spring portion 1a made of a metal plate spring and a projection 1b made of a resin material. The spring portion 1a can be deformed inward, and the strength is increased by using a metal plate to withstand external force when the cover is locked. Further, by using a metal plate, it can be arranged in a narrow gap between the camera unit 2 and the cover 4. In addition, it is also possible to comprise the spring part 1a with nonmetallic resin.

突起部１ｂは、カバー穴４ｂに嵌合できるようなサイズ（直径）とするのは勿論であるが、突起部１ｂの高さはカバー４の厚みと同程度としこれを超えないようにする。すなわち、嵌合時には、突起部１ｂはカバー４の表面から突き出さない高さに設定する。このようにすることで、カバー周囲面（カバー穴４ｂ）に手を触れても、誤って突起部１ｂを押し込みカバー４を外すことがない。そして、突起部１ｂの先端には微小凹部１ｂ’を設けている。これは、カバー４を取り外すためにピン先などで突起部１ｂを押し込む際に、ピン先をこの微小凹部１ｂ’に差し込むことでピン先の位置ずれがなく、カバー取り外し作業を容易にするためである。   The protrusion 1b is of a size (diameter) that can be fitted into the cover hole 4b, but the height of the protrusion 1b is approximately the same as the thickness of the cover 4 so as not to exceed this. That is, at the time of fitting, the protrusion 1 b is set to a height that does not protrude from the surface of the cover 4. By doing in this way, even if it touches a cover peripheral surface (cover hole 4b), it does not push the projection part 1b accidentally and removes the cover 4. And the micro recessed part 1b 'is provided in the front-end | tip of the projection part 1b. This is because when the projection 1b is pushed with a pin tip or the like to remove the cover 4, the pin tip is inserted into the minute recess 1b 'so that the pin tip is not displaced and the cover removal work is facilitated. is there.

また突起部１ｂの材質として樹脂を用いているが、ノイズ防止の効果がある。突起部１ｂはカバー穴４ｂから外部へ露出しているので、突起部１ｂが金属の場合には外部から電気ノイズを拾い、バネ部１ａを通してカメラユニット２に伝搬してカメラの映像が悪化する。突起部１ｂを非金属の樹脂とすることで、このようなノイズ発生を抑えることができる。なお、突起部１ｂは非金属であれば樹脂以外の材料としても構わない。   Moreover, although resin is used as the material of the projection part 1b, there exists an effect of noise prevention. Since the protruding portion 1b is exposed to the outside from the cover hole 4b, when the protruding portion 1b is made of metal, electric noise is picked up from the outside and propagated to the camera unit 2 through the spring portion 1a to deteriorate the image of the camera. Such a noise generation can be suppressed by using the non-metallic resin for the protrusion 1b. The protrusion 1b may be made of a material other than resin as long as it is non-metallic.

シャーシ３には、上方に折り曲げたシャーシ爪３ａを設けている。シャーシ爪３ａとシャーシ面の隙間にカバー爪４ａが係合することで、カバーと本体部とを接合する。   The chassis 3 is provided with chassis claws 3a bent upward. The cover claw 4a engages with the gap between the chassis claw 3a and the chassis surface, thereby joining the cover and the main body.

図３は、カバー取付け時のカバーと本体部との位置関係を示す図である。   FIG. 3 is a diagram illustrating a positional relationship between the cover and the main body when the cover is attached.

（ａ）はカバー４を本体部６に被せた状態で、カバーの位置合わせマーク（▽印）４ｃを本体部の位置合わせマーク（○印）１ｃに合わせている。この状態ではカバー４のカバー穴４ｂは本体部６の突起部１ｂからずれている。また、突起部１ｂを含むロックバネ１は、カバー４の内面に変形した状態で接している。なお、対となるカバー爪４ａとシャーシ爪３ａとは離れて配置し、カバーを被せるとき互いに干渉しないようにしている。   In (a), the cover alignment mark (▽ mark) 4c is aligned with the alignment mark (◯ mark) 1c of the main body in a state where the cover 4 is put on the main body 6. In this state, the cover hole 4 b of the cover 4 is displaced from the protrusion 1 b of the main body 6. Further, the lock spring 1 including the protruding portion 1 b is in contact with the inner surface of the cover 4 in a deformed state. The cover claw 4a and the chassis claw 3a that are paired are arranged so as not to interfere with each other when the cover is put on.

（ｂ）は、カバーをＸ方向に回転させてロック完了した状態である。カバー爪４ａは対となるシャーシ爪３ａに係合し（図面で重なっている）、両者は接合される。さらに、カバー穴４ｂは突起部１ｂと対向し、「カチッ」というクリック音を発して嵌合する。作業者はこのクリック音でカバーロックが完了したことを確認できる。   (B) is a state where the cover is rotated in the X direction to complete the lock. The cover claw 4a engages with a pair of chassis claws 3a (overlapping in the drawing), and both are joined. Further, the cover hole 4b is opposed to the protrusion 1b and is fitted with a clicking sound of “click”. The operator can confirm that the cover lock is completed with this click sound.

本実施例によれば、カバーの着脱には特殊な工具を使用する必要がないため、天井の隅等の狭い場所でも簡単に設置作業を行うことができる。また、カメラ設置作業者以外の第三者がカバーを取り外すことが困難であるため、カメラへのいたずら防止の効果がある。   According to the present embodiment, since it is not necessary to use a special tool for attaching and detaching the cover, the installation work can be easily performed even in a narrow place such as a corner of the ceiling. Moreover, since it is difficult for a third party other than the camera installation worker to remove the cover, there is an effect of preventing tampering with the camera.

本発明にかかる監視用ビデオカメラのカバーロック機構の一実施例を示す図。The figure which shows one Example of the cover lock mechanism of the video camera for surveillance concerning this invention. 本実施例のカバーロック機構について詳細に示す図。The figure shown in detail about the cover lock mechanism of a present Example. カバー取付け時のカバーと本体部との位置関係を示す図。The figure which shows the positional relationship of the cover and main-body part at the time of cover attachment.

符号の説明Explanation of symbols

１…ロックバネ
１ａ…バネ部
１ｂ…突起部
１ｃ…位置合わせマーク（○印）
２…カメラユニット
２ａ…撮影レンズ
３…シャーシ
３ａ…シャーシ爪
４…カバー
４ａ…カバー爪
４ｂ…カバー穴
４ｃ…位置合わせマーク（▽印）
５…ベース部
５ａ…ベース取付部
６…カメラ本体部。 DESCRIPTION OF SYMBOLS 1 ... Lock spring 1a ... Spring part 1b ... Projection part 1c ... Positioning mark (circle mark)
2 ... Camera unit 2a ... Shooting lens 3 ... Chassis 3a ... Chassis claw 4 ... Cover 4a ... Cover claw 4b ... Cover hole 4c ... Alignment mark (▽ mark)
5 ... Base part 5a ... Base mounting part 6 ... Camera body part.

Claims (5)

監視用ビデオカメラのカメラ本体部にドーム状のカバーを取付ける際のカバーロック機構であって、
上記カメラ本体部の側面に、先端に突起部を有し該カメラ本体部の中心側に変形可能なロックバネを設け、
上記カバーの周面に、上記ロックバネの突起部が挿入可能なカバー穴を設け、
上記ロックバネを上記カバーの内側に変形させ、上記突起部を上記カバーの内側から上記カバー穴に嵌合させることで、上記カメラ本体部に上記カバーを固定することを特徴とする監視用ビデオカメラのカバーロック機構。 A cover locking mechanism for attaching a dome-shaped cover to the camera body of a surveillance video camera,
Provided on the side surface of the camera body part is a lock spring having a protrusion at the tip and deformable on the center side of the camera body part,
A cover hole into which the protrusion of the lock spring can be inserted is provided on the peripheral surface of the cover,
A video camera for surveillance, wherein the lock spring is deformed to the inside of the cover, and the projection is fitted into the cover hole from the inside of the cover to fix the cover to the camera body. Cover lock mechanism. 請求項１に記載の監視用ビデオカメラのカバーロック機構であって、
前記カメラ本体部と前記カバーとの接合する位置には、それぞれ互いに対となるシャーシ爪とカバー爪とを設け、
前記カバーを前記カメラ本体部に被せ、前記カバーを回転させて上記シャーシ爪とカバー爪とを係合させることで、前記カメラ本体部に前記カバーを接合することを特徴とする監視用ビデオカメラのカバーロック機構。 It is a cover lock mechanism of the surveillance video camera according to claim 1,
At the position where the camera body and the cover are joined, a chassis claw and a cover claw that are paired with each other are provided,
A video camera for surveillance, wherein the cover is put on the camera body, and the cover is rotated to engage the chassis claw and the cover claw, thereby joining the cover to the camera body. Cover lock mechanism. 請求項１または２に記載の監視用ビデオカメラのカバーロック機構であって、
前記突起部は前記カバー穴に嵌合した際に、前記カバーの表面から突き出さない高さに設定したことを特徴とする監視用ビデオカメラのカバーロック機構。 A surveillance video camera cover locking mechanism according to claim 1 or 2,
A cover lock mechanism for a surveillance video camera, wherein the protrusion is set to a height that does not protrude from the surface of the cover when fitted into the cover hole. 請求項１ないし３のいずれか１項に記載の監視用ビデオカメラのカバーロック機構であって、
前記突起部の先端には外力が印加される微小凹部を設け、
前記カバーを前記カメラ本体部から取り外す場合、上記微小凹部に印加された外力で前記突起部を前記カバーの内側へ押し込み、前記突起部と前記カバー穴の嵌合を外すことを特徴とする監視用ビデオカメラのカバーロック機構。 A cover lock mechanism for a surveillance video camera according to any one of claims 1 to 3,
Provided at the tip of the projection is a minute recess to which an external force is applied,
When removing the cover from the camera body, the projection is pushed into the inside of the cover by an external force applied to the minute recess, and the fitting between the projection and the cover hole is removed. Cover lock mechanism for video cameras. 請求項１ないし４のいずれか１項に記載の監視用ビデオカメラのカバーロック機構であって、
前記ロックバネは、金属板バネの先端に樹脂材からなる前記突起部を設けて構成したことを特徴とする監視用ビデオカメラのカバーロック機構。 A cover lock mechanism for a surveillance video camera according to any one of claims 1 to 4,
A cover lock mechanism for a surveillance video camera, wherein the lock spring is configured by providing the protrusion made of a resin material at a tip of a metal plate spring.
JP2007007117A 2007-01-16 2007-01-16 Cover lock mechanism for surveillance video camera Expired - Fee Related JP4740161B2 (en)

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