JP4343239B2

JP4343239B2 - Imaging device

Info

Publication number: JP4343239B2
Application number: JP2007149136A
Authority: JP
Inventors: 豊一福井; 守彦鈴木; 利之長岡
Original assignee: エヌ・ティ・ティ・インフラネット株式会社
Priority date: 2007-06-05
Filing date: 2007-06-05
Publication date: 2009-10-14
Anticipated expiration: 2027-06-05
Also published as: JP2008304525A

Description

この発明は、マンホール，ハンドホール等の地下空間の内部を簡易かつ確実に撮影することができる撮影装置に関する。 The present invention relates to an imaging device capable of easily and reliably imaging the interior of underground spaces such as manholes and handholes.

従来より、各種ケーブルが設置されるマンホール，ハンドホール等の地下空間を管理するために、その地下空間の内部をＣＣＤカメラで撮影することが行われている。例えば、特許第３８２５３８０号公報（特許文献１）に示される撮影装置では、三脚を構成している支脚部上に垂直軸を中心として回転されるターテーブルを配置し、このターンテーブル上にカメラがセットされたものであって、このターンテーブルを駆動回路から出力された信号に基づき一定角度ずつ回転させ、その度ごとに撮影した写真画像を繋ぎ合わせることによってカメラの周囲３６０度のパノラマ写真を得ることができる。
特許第３８２５３８０号公報 Conventionally, in order to manage underground spaces such as manholes and hand holes where various cables are installed, the inside of the underground spaces is photographed with a CCD camera. For example, in an imaging apparatus disclosed in Japanese Patent No. 3825380 (Patent Document 1), a tar table that is rotated around a vertical axis is disposed on a support leg portion that constitutes a tripod, and a camera is disposed on the turn table. A 360-degree panoramic photograph around the camera is obtained by rotating the turntable by a certain angle based on the signal output from the drive circuit and joining the photographed images taken each time. be able to.
Japanese Patent No. 3825380

ところで、上記公報に示される撮影装置では、図１１（Ａ）に示されるようにカメラが取り付けられた三脚を設置して周囲３６０度の写真撮影を行うものであるが、図１１（Ｂ）に示されるように、垂直軸を中心としてカメラを回転させた場合、符号（ａ）で示される領域内にカメラのレンズが向かず、同領域が撮影できないという問題が発生していた。また、マンホール，ハンドホール等の内部に三脚を設置する場合、地下空間内が狭く、撮影作業に手間と時間がかかるという取り扱い上の問題も発生していた。 By the way, in the photographing apparatus shown in the above publication, as shown in FIG. 11A, a tripod to which a camera is attached is installed to take a photograph of 360 degrees around, but in FIG. As shown, when the camera is rotated around the vertical axis, the camera lens does not face within the area indicated by reference numeral (a), and there is a problem that the same area cannot be photographed. In addition, when a tripod is installed inside a manhole, handhole, etc., there is a problem in handling that the underground space is narrow and the photographing work takes time and effort.

本発明は、従来の有していた問題を解決するものであって、マンホール，ハンドホール等の地下空間内にて、垂直軸を中心としてカメラを一定角度で回転させた場合に、死角を発生させない又は減少させた、周囲３６０度のパノラマ撮影を行うことができるとともに、狭い作業空間しかない地下空間での写真撮影を容易かつ短時間に行うことができる撮影装置の提供を目的とする。 The present invention solves the conventional problems and generates a blind spot when the camera is rotated at a fixed angle around a vertical axis in an underground space such as a manhole or handhole. An object of the present invention is to provide an imaging apparatus that can perform 360-degree panoramic photography with no or reduced surroundings, and that can easily and quickly perform photography in an underground space with only a narrow work space.

そして、上記目的を達成するために本発明は、地下空間の内部を撮影するカメラが取り付けられるカメラ支持手段と、このカメラ支持手段を地下空間内の撮影位置に保持する保持手段と、を具備し、前記カメラ支持手段は、前記保持手段に垂直となるように支持されかつその垂直軸が回転中心となる長尺な垂直ロッドと、この垂直ロッドに連結されかつ該垂直ロッドの回転中心から外方に向けて突出するように配置されてその突出位置にレンズを内方側に向けたカメラが設置されるカメラ取付ロッドと、を備えることを特徴とする。 In order to achieve the above object, the present invention comprises camera support means to which a camera for photographing the inside of the underground space is attached, and holding means for holding the camera support means at a photographing position in the underground space. The camera support means is supported so as to be perpendicular to the holding means and has a long vertical rod whose vertical axis is the rotation center, and is connected to the vertical rod and outward from the rotation center of the vertical rod. And a camera mounting rod that is disposed so as to protrude toward the camera and is provided with a camera with the lens facing inward at the protruding position.

また、本発明は、前記カメラ支持手段の垂直ロッドの上端には、該垂直ロッド本体に対して直角となるように連結板が固定され、前記保持手段は、地下空間の地上孔に取り付けられるリング部材と、このリング部材内に配置されかつ水平軸を中心として上下に回動するように設けられて、前記垂直ロッド上端の連結板を脱着自在に懸架する受け部と、を備えることを特徴とする。 In the present invention, a connecting plate is fixed to an upper end of the vertical rod of the camera support means so as to be perpendicular to the vertical rod body, and the holding means is a ring attached to a ground hole in an underground space. A member, and a receiving portion that is disposed in the ring member and pivots up and down around a horizontal axis and detachably suspends the connecting plate at the upper end of the vertical rod. To do.

また、本発明は、前記カメラ支持手段の垂直ロッドの上端には、該垂直ロッド本体に対して水平軸を中心として回動自在に連結板が設けられ、前記保持手段は、地下空間の地上孔に取り付けられるリング部材と、このリング部材内に設けられて前記垂直ロッド上端の連結板を脱着自在に懸架する受け部と、を備えることを特徴とする。 In the present invention, a connecting plate is provided at the upper end of the vertical rod of the camera support means so as to be rotatable about a horizontal axis with respect to the vertical rod body, and the holding means is a ground hole in the underground space. A ring member that is attached to the ring member, and a receiving portion that is provided in the ring member and removably suspends the connecting plate at the upper end of the vertical rod.

また、本発明は、前記受け部の受け部材は中央部に開口を有する形状に形成され、その上面に、垂直ロッド上端に位置しかつ該受け部材の形状に応じた連結板が脱着自在に懸架され、かつ連結板の懸架時に該受け部材の開口部内を貫通するように該垂直ロッドを配置することを特徴とする。 Further, according to the present invention, the receiving member of the receiving portion is formed in a shape having an opening in the central portion, and a connecting plate located on the upper end of the vertical rod and corresponding to the shape of the receiving member is removably suspended on the upper surface thereof. And the vertical rod is disposed so as to penetrate through the opening of the receiving member when the connecting plate is suspended.

また、本発明は、前記受け部には、垂直ロッド上端に位置する連結板を三点支持することにより固定する固定手段が設けられていることを特徴とする。 Further, the present invention is characterized in that the receiving portion is provided with a fixing means for fixing the connecting plate located at the upper end of the vertical rod by supporting three points.

また、本発明は、前記垂直ロッドとカメラ取付ロッドとの連結部には、前記垂直ロッドの長さ方向に沿ってカメラ取付ロッドの連結位置を変更できる締結手段が設けられていることを特徴とする。 Further, the present invention is characterized in that the connecting portion between the vertical rod and the camera mounting rod is provided with a fastening means capable of changing the connection position of the camera mounting rod along the length direction of the vertical rod. To do.

また、本発明は、前記カメラ取付ロッドと垂直ロッドとの各連結軸は同軸上に配置されるとともに、一方の軸を筒状に形成しかつこの筒状軸内に他方の軸を内包することで両軸が相対回転自在とされ、これら軸の間に、垂直ロッドに対して相対回転するカメラ取付ロッドを特定の角度に位置させるための回転規制部が設けられることを特徴とする。 Further, in the present invention, the connecting shafts of the camera mounting rod and the vertical rod are coaxially arranged, one shaft is formed in a cylindrical shape, and the other shaft is included in the cylindrical shaft. Thus, both shafts are rotatable relative to each other, and a rotation restricting portion is provided between these shafts for positioning the camera mounting rod that rotates relative to the vertical rod at a specific angle.

また、本発明は、前記保持手段を三脚とする。 In the present invention, the holding means is a tripod.

本発明の撮影装置では、地下空間の内部を撮影するカメラが取り付けられるカメラ支持手段と、このカメラ支持手段を地下空間内の撮影位置に保持する保持手段と、を具備し、前記カメラ支持手段は、前記保持手段に垂直となるように支持されかつその垂直軸が回転中心となる長尺な垂直ロッドと、この垂直ロッドに連結されかつ該垂直ロッドの回転中心から外方に向けて突出するように配置されてその突出位置にレンズを内方側に向けたカメラが設置されるカメラ取付ロッドと、を備えることから、カメラ取付ロッドに取り付けられるカメラ設置位置が、回転中心よりも後側に後退して、カメラによる地下空間の撮影範囲を広く取ることができる。その結果、垂直ロッドをその垂直軸を中心として一定の角度で回転させてパノラマ撮影を行った場合に、カメラ撮影による死角を減少又は消滅させることができ、地下空間の保守管理を高い精度で行うことが可能となる。 The imaging apparatus of the present invention comprises camera support means to which a camera for imaging the interior of the underground space is attached, and holding means for holding the camera support means at the imaging position in the underground space, the camera support means being A long vertical rod supported perpendicularly to the holding means and having a vertical axis as a rotation center, and connected to the vertical rod and projecting outward from the rotation center of the vertical rod. And a camera mounting rod on which the camera with the lens facing inward is installed at the protruding position, so that the camera installation position attached to the camera mounting rod moves backward from the center of rotation. Thus, the imaging range of the underground space by the camera can be widened. As a result, when panoramic photography is performed by rotating the vertical rod around the vertical axis at a certain angle, the blind spots due to camera photography can be reduced or eliminated, and maintenance management of the underground space can be performed with high accuracy. It becomes possible.

本発明の撮影装置では、前記カメラ支持手段の垂直ロッドの上端には、該垂直ロッド本体に対して直角となるように連結板が固定され、前記保持手段は、地下空間の地上孔に取り付けられるリング部材と、このリング部材内に配置されかつ水平軸を中心として上下に回動するように設けられて、前記垂直ロッド上端の連結板を脱着自在に懸架する受け部と、を備えることを特徴とすることから、地下空間の地上孔が傾斜面に設けられていたとしても、該地上孔に取り付けられるリング部材に対して、水平軸を中心として受け部を上下に回動させれば、該受け部を水平に位置させることができる。そして、この状態で受け部に、垂直ロッド上端の連結板を懸架すれば、該連結板に対して直角な垂直ロッドが垂直に配置され、該垂直ロッドをその垂直軸を中心に回転させることによって、その下端のカメラ取付ロッドに設置されるカメラも、同垂直軸を中心に回転し、これにより上下方向に対してずれの無いパノラマ撮影を行うことができる。 In the photographing apparatus of the present invention, a connecting plate is fixed to the upper end of the vertical rod of the camera support means so as to be perpendicular to the vertical rod body, and the holding means is attached to a ground hole in the underground space. A ring member, and a receiving portion that is disposed in the ring member and pivots up and down about a horizontal axis, and removably suspends the connecting plate at the upper end of the vertical rod. Therefore, even if the ground hole of the underground space is provided on the inclined surface, if the receiving part is rotated up and down around the horizontal axis with respect to the ring member attached to the ground hole, The receiving part can be positioned horizontally. If the connecting plate at the upper end of the vertical rod is suspended in the receiving portion in this state, the vertical rod perpendicular to the connecting plate is arranged vertically, and the vertical rod is rotated around its vertical axis. The camera installed on the camera mounting rod at the lower end of the camera also rotates about the same vertical axis, so that panoramic photography without deviation in the vertical direction can be performed.

本発明の撮影装置では、前記カメラ支持手段の垂直ロッドの上端には、該垂直ロッド本体に対して水平軸を中心として回動自在に連結板が設けられ、前記保持手段は、地下空間の地上孔に取り付けられるリング部材と、このリング部材内に設けられて前記垂直ロッド上端の連結板を脱着自在に懸架する受け部と、を備えることを特徴とすることから、地下空間の地上孔が傾斜面に設けられていたとしても、該地上孔に取り付けられるリング部材の受け部に対して懸架された連結板を、その水平軸を中心として垂直ロッドに対して回動させるようにすれば、その自重により垂直ロッドが垂直に配置され、その結果、該垂直ロッドをその垂直軸を中心に回転させることによって、その下端のカメラ取付ロッドに取り付けられるカメラも、同垂直軸を中心に回転し、これにより上下方向に対してずれの無いパノラマ撮影を行うことができる。 In the photographing apparatus of the present invention, a connecting plate is provided at the upper end of the vertical rod of the camera support means so as to be rotatable about a horizontal axis with respect to the vertical rod body, and the holding means is provided on the ground in the underground space. The ground hole in the underground space is inclined because it comprises a ring member attached to the hole, and a receiving part provided in the ring member for detachably suspending the connecting plate at the upper end of the vertical rod. Even if it is provided on the surface, if the connecting plate suspended with respect to the receiving portion of the ring member attached to the ground hole is rotated with respect to the vertical rod about the horizontal axis, The vertical rod is arranged vertically by its own weight, and as a result, the camera attached to the camera mounting rod at its lower end by rotating the vertical rod about its vertical axis is also Rotate around, which makes it possible to perform a shift without panorama with respect to the vertical direction.

本発明の撮影装置では、受け部の受け部材を中央に開口を有する形状に形成し、該受け部材の上面に、垂直ロッド上端に位置しかつ該受け部材の形状に応じた連結板を脱着自在に懸架し、かつ連結板の懸架時に該受け部材の開口部内を貫通するように該垂直ロッドを配置したので、例えば、受け部の受け部材を平面視コ字状に形成し、該受け部材の上面に正方形状の連結板を脱着させ、さらに、該連結板を、コ字状の受け部材に対して９０度又は１８０度ずつ回転させるようにすれば、特別な冶具を使用することなく狭い地下空間にて簡単に４面のパノラマ写真を撮影することができ、また、受け部材に対する連結板の懸架時にそのコ字状部を貫通するように垂直ロッドが配置されるので、連結板の回転に伴う垂直ロッドの垂直軸を中心とした回転も支障無く行うことが可能となる。 In the photographing apparatus of the present invention, the receiving member of the receiving part is formed in a shape having an opening in the center, and a connecting plate that is positioned at the upper end of the vertical rod and that corresponds to the shape of the receiving member is detachable on the upper surface of the receiving member Since the vertical rod is arranged so as to penetrate through the opening of the receiving member when the connecting plate is suspended, for example, the receiving member of the receiving portion is formed in a U-shape in plan view. If a square-shaped connecting plate is attached to and removed from the upper surface, and the connecting plate is rotated by 90 degrees or 180 degrees with respect to the U-shaped receiving member, a narrow basement can be obtained without using a special jig. It is possible to easily take four panoramic photographs in the space, and when the connecting plate is suspended from the receiving member, the vertical rod is arranged so as to penetrate the U-shaped part, so that the connecting plate can be rotated. Around the vertical axis of the accompanying vertical rod Rotation also becomes possible to perform without any trouble.

本発明の撮影装置では、受け部に、垂直ロッド上端に位置する連結板を三点支持することにより固定する固定手段を設けたので、この固定手段によって垂直ロッド及び垂直ロッドに連結されたカメラ取付ロッドの揺れを抑え、ぶれ及びずれのないパノラマ写真撮影を行うことが可能となる。 In the photographing apparatus of the present invention, the receiving portion is provided with fixing means for fixing the supporting plate by supporting the connecting plate located at the upper end of the vertical rod at three points, so that the camera is connected to the vertical rod and the vertical rod by the fixing means. It is possible to perform panoramic photography without shaking and displacement by suppressing the shaking of the rod.

本発明の撮影装置では、垂直ロッドとカメラ取付ロッドとの連結部に、垂直ロッドの長さ方向に沿ってカメラ取付ロッドの連結位置を変更できる締結手段が設けられているので、この締結手段によるカメラ取付ロッドの連結位置変更により、地下空間への深さに応じてカメラの設置位置を調整することができる。 In the photographing apparatus according to the present invention, the connecting portion between the vertical rod and the camera mounting rod is provided with fastening means that can change the connection position of the camera mounting rod along the length direction of the vertical rod. By changing the connection position of the camera mounting rod, the camera installation position can be adjusted according to the depth to the underground space.

本発明の撮影装置では、カメラ取付ロッドと垂直ロッドとの各連結軸を、同軸上に相対回転自在に設けるとともに、一方の軸を筒状に形成しかつこの筒状軸内に他方の軸を内包し、かつこれら軸の間に、垂直ロッドに対して回転するカメラ取付ロッドを特定の角度に位置させるための回転規制部を設けたので、カメラ取付ロッドを垂直ロッドに対して回転させるだけで、回転規制部での回転規制により該カメラ取付ロッドを特定の角度（例えば９０度、１８０度、２７０度）に正確に位置させることができ、このような該カメラ取付ロッドの回転操作によって簡単にずれの無いパノラマ写真を撮影することができる。 In the photographing apparatus of the present invention, the connecting shafts of the camera mounting rod and the vertical rod are provided on the same axis so as to be relatively rotatable, and one shaft is formed in a cylindrical shape, and the other shaft is placed in the cylindrical shaft. A rotation restricting part is provided between the shafts to position the camera mounting rod that rotates relative to the vertical rod at a specific angle, so that only the camera mounting rod is rotated relative to the vertical rod. The camera mounting rod can be accurately positioned at a specific angle (for example, 90 degrees, 180 degrees, and 270 degrees) by the rotation restriction in the rotation restriction unit, and can be easily performed by such a rotation operation of the camera attachment rod. It is possible to take panoramic photos without any deviation.

本発明の撮影装置では、保持手段として従来からの三脚を使用することもでき、従来からの三脚使用によっても、上述したように、カメラ取付ロッドに取り付けられるカメラ設置位置を、回転中心よりも後側に後退させて、カメラによる地下空間の撮影範囲を広く取ることができる。その結果、垂直ロッドをその垂直軸を中心として一定の角度で回転させてパノラマ撮影を行った場合に、カメラ撮影による死角を減少又は消滅させることができ、地下空間の保守管理を高い精度で行うことが可能となる。 In the photographing apparatus of the present invention, a conventional tripod can be used as the holding means. Even when the conventional tripod is used, as described above, the camera installation position attached to the camera mounting rod is behind the rotation center. It can be moved backwards to widen the shooting range of the underground space with the camera. As a result, when panoramic photography is performed by rotating the vertical rod around the vertical axis at a certain angle, the blind spots due to camera photography can be reduced or eliminated, and maintenance management of the underground space can be performed with high accuracy. It becomes possible.

以下に本発明の実施の形態を図１〜図１０に基づいて説明する。まず、図１において符号１で示されるものは地下空間を形成するマンホールである。この地下空間は地下に水平に形成されてその内部にケーブル（図示略）が配線される水平通路１Ａ、水平通路１Ａの上部に配置された垂直通路１Ｂ、垂直通路１Ｂの上端の地上面に形成された地上開口１Ｃとからなる。 Hereinafter, embodiments of the present invention will be described with reference to FIGS. First, what is indicated by reference numeral 1 in FIG. 1 is a manhole that forms an underground space. This underground space is formed on the ground surface at the upper end of the horizontal passage 1A, which is formed horizontally in the basement and in which a cable (not shown) is routed, the vertical passage 1B disposed above the horizontal passage 1A, and the vertical passage 1B. And the ground opening 1C.

本実施形態に示される撮影装置は、マンホール１の内部を撮影するカメラが取り付けられるカメラ支持手段２と、このカメラ支持手段２をマンホール１内に位置させる保持手段３と、を具備している。保持手段３は、図１（Ａ）及び（Ｂ）に示されるように、マンホール１の地上開口１Ｃの周囲に載置されるリング部材４と、このリング部材４内に配置されて垂直ロッド１１上端の連結板１０（後述する）を脱着自在に懸架する受け部５とからなる。 The photographing apparatus shown in the present embodiment includes camera support means 2 to which a camera for photographing the inside of the manhole 1 is attached, and holding means 3 for positioning the camera support means 2 in the manhole 1. As shown in FIGS. 1A and 1B, the holding means 3 includes a ring member 4 placed around the ground opening 1 </ b> C of the manhole 1, and a vertical rod 11 disposed in the ring member 4. It comprises a receiving part 5 for detachably suspending a connecting plate 10 (described later) at the upper end.

受け部５は、図１（Ａ）及び図２（Ａ）に示されるように、リング部材４内にて該リング部材４を横断するようにかつ互いが平行となる位置関係に配置された２本の固定部材６を備えている。また、受け部５は、ボルトとナットからなる締結手段７により固定部材６に締結され、これら締結手段７により固定部材６の長さ方向に沿って位置調整可能な２枚の側板８を備えている。さらに、受け部５は、側板８の間において、水平軸９Ａを中心としてその基端部が回転自在に支持された受け部材９を備えている。
受け部材９は、図１（Ａ）に示されるように平面視コ字状に形成されて、その上面に垂直ロッド１１上端に位置する平面視、正方形状の連結板１０（後述する）が脱着される。そして、このような構成により受け部材９は、図２（Ａ）に矢印に示すように水平軸９Ａを中心に上下に回動するようになっている。そして、このような回動によって、マンホール１の地上開口１Ｃが傾斜面１Ｄに設けられていたとしても（図２（Ｂ）参照）、地上開口１Ｃに取り付けられるリング部材４に対して、水平軸９Ａを中心として受け部材９を回動させれば、該受け部材９を水平となるように位置させることができ、水平面上に連結板１０（後述する）を取り付けることができる。
なお、側板８の外側に位置する水平軸９Ａの端部には螺子（図示略）が形成され、この螺子につまみの付きのボルト９Ｂを螺合させ、このボルト９Ｂを回転させることで、側板８の間隔を狭め、これにより水平に回動させた受け部材９を固定保持する。 As shown in FIGS. 1 (A) and 2 (A), the receiving portions 5 are arranged in a positional relationship so as to cross the ring member 4 in the ring member 4 and to be parallel to each other. A fixed member 6 is provided. The receiving portion 5 includes two side plates 8 that are fastened to the fixing member 6 by fastening means 7 including bolts and nuts, and that can be adjusted in position along the length direction of the fixing member 6 by the fastening means 7. Yes. Further, the receiving portion 5 includes a receiving member 9 between the side plates 8 and having a base end portion rotatably supported around a horizontal axis 9A.
As shown in FIG. 1A, the receiving member 9 is formed in a U shape in plan view, and a connecting plate 10 (described later) having a square shape in plan view located at the upper end of the vertical rod 11 is attached to the upper surface thereof. Is done. With such a configuration, the receiving member 9 rotates up and down around the horizontal axis 9A as indicated by an arrow in FIG. And even if the ground opening 1C of the manhole 1 is provided in the inclined surface 1D by such rotation (see FIG. 2B), the horizontal axis is relative to the ring member 4 attached to the ground opening 1C. If the receiving member 9 is rotated about 9A, the receiving member 9 can be positioned so as to be horizontal, and a connecting plate 10 (described later) can be attached on a horizontal plane.
A screw (not shown) is formed at the end of the horizontal shaft 9A located outside the side plate 8. A bolt 9B with a knob is screwed into the screw, and the bolt 9B is rotated to rotate the side plate. The interval of 8 is narrowed, and thereby the receiving member 9 rotated horizontally is fixedly held.

図２（Ｂ）は、上述した保持手段３の受け部材９に、カメラ支持手段２を取り付けた状態を示す正面図である。
カメラ支持手段２は、図３に示されるように、保持手段３の受け部材９上に配置される平面視、正方形状の連結板１０と、この連結板１０の下面中央に直角となるように配置される長尺な垂直ロッド１１と、この垂直ロッド１１の下端に連結されかつ該垂直ロッド１１の回転中心（一点鎖線（イ）で示す）から径方向外方に向けて突出するように配置されてその突出位置にレンズ１２を径方向内方側に向けたカメラ１３が設置されるカメラ取付ロッド１４と、から構成されたものである。カメラ取付ロッド１４は、図３（Ａ）の正面図に示されるようにクランク状に形成され、その上端の直線部１４Ａが垂直ロッド１１の下端に連結され、外方に向け突出しているクランク末端の水平部１４Ｂにカメラ１３が設置される。すなわち、レンズ１２は、垂直ロッド１１の回転中心から径方向外方に没する位置に配されており、回転中心に向けられて設置されている。
また、上述した垂直ロッド１１の上端に直角に固定された連結板１０は、受け部材９上に取り付けられた場合に、該受け部材９のコ字状部内を貫通するように該垂直ロッド１１が配置されることで、該垂直ロッド１１を懸架する。なお、連結板１０の上面には取手１０Ａが設けられており、この取手１０Ａを把持することによりカメラ支持手段２を持ち上げることができるようになっている。 FIG. 2B is a front view showing a state in which the camera support means 2 is attached to the receiving member 9 of the holding means 3 described above.
As shown in FIG. 3, the camera support means 2 has a square-shaped connecting plate 10 disposed on the receiving member 9 of the holding means 3 and a right angle at the center of the lower surface of the connecting plate 10. A long vertical rod 11 to be arranged and connected to the lower end of the vertical rod 11 and arranged to project radially outward from a rotation center (indicated by a one-dot chain line (A)) of the vertical rod 11 The camera mounting rod 14 on which the camera 13 with the lens 12 facing the radially inward side is installed at the protruding position. The camera mounting rod 14 is formed in a crank shape as shown in the front view of FIG. 3A, and the straight end portion 14A of the upper end is connected to the lower end of the vertical rod 11 and protrudes outward. The camera 13 is installed in the horizontal portion 14B. In other words, the lens 12 is disposed at a position that sag radially outward from the center of rotation of the vertical rod 11 and is installed facing the center of rotation.
Further, the connecting plate 10 fixed at a right angle to the upper end of the vertical rod 11 described above, when attached on the receiving member 9, the vertical rod 11 passes through the U-shaped portion of the receiving member 9. The vertical rod 11 is suspended by being arranged. A handle 10A is provided on the upper surface of the connecting plate 10, and the camera support means 2 can be lifted by holding the handle 10A.

また、図４に示すように、受け部材９の上面には、カメラ支持手段２の連結板１０を載置した場合に該連結板１０の前端側の角部を挟み、該連結板１０を固定保持する止め金具１５が設けられている。この止め金具１５は、図１（Ａ）の平面図に示されるように受け部材９の基端部に２箇所設けられることで、連結板１０の前端側にある２つの角部を挟みかつ保持する。また、受け部材９の上面に連結板１０を取り付けた場合に、該連結板１０の後端部は、図２（Ｂ）に符号１６で示される固定金具の凹部（図示略）に嵌合される。そして、この連結板１０が前端部で二箇所の止め金具１５で保持され、後端部側で一箇所の固定金具１６で保持されることで、該連結板１０が受け部材９に対して三点支持されることになり、これにより連結板１０、垂直ロッド１１及び垂直ロッド１１に連結されたカメラ取付ロッド１４の揺れを抑えることができる。 As shown in FIG. 4, when the connecting plate 10 of the camera support means 2 is placed on the upper surface of the receiving member 9, a corner portion on the front end side of the connecting plate 10 is sandwiched to fix the connecting plate 10. A holding metal fitting 15 is provided. As shown in the plan view of FIG. 1 (A), two fasteners 15 are provided at the base end of the receiving member 9 so as to sandwich and hold the two corners on the front end side of the connecting plate 10. To do. Further, when the connecting plate 10 is attached to the upper surface of the receiving member 9, the rear end portion of the connecting plate 10 is fitted into a concave portion (not shown) of the fixing bracket indicated by reference numeral 16 in FIG. The Then, the connecting plate 10 is held by the two fasteners 15 at the front end portion and is held by the one fixing bracket 16 at the rear end portion, so that the connecting plate 10 is attached to the receiving member 9 three times. As a result, the swinging of the connecting plate 10, the vertical rod 11, and the camera mounting rod 14 connected to the vertical rod 11 can be suppressed.

カメラ取付ロッド１４は、図３（Ａ）に示されるように垂直ロッド１１に対して脱着自在に設けられ、該垂直ロッド１１の長さ方向に沿ってその連結位置が変更可能な締結手段１７が設けられている。この締結手段１７は、カメラ取付ロッド１４の直線部１４Ａに長さ方向に沿って一定の間隔をおいて形成された複数の螺子孔１８と、垂直ロッド１１に形成された螺子孔１９と、カメラ取付ロッド１４の螺子孔１８の一つに選択的に螺合された後で垂直ロッド１１の螺子孔１９に螺合される螺子部材２０とから構成されるものであって、螺子部材２０をどの螺子孔１８に螺合するかによってカメラ支持手段２の全体の長さが調整される。
また、垂直ロッド１１の側壁部には、周方向に９０°の間隔を空けて４枚のリブ３０が設けられている。リブ３０は、連結板１０の裏面から垂直ロッド１１の先端部近傍まで延ばされている。これにより、垂直ロッド１１の撓みに起因する撮影時の振動が防止される。 As shown in FIG. 3A, the camera mounting rod 14 is detachably attached to the vertical rod 11, and fastening means 17 capable of changing the connecting position along the length direction of the vertical rod 11 is provided. Is provided. The fastening means 17 includes a plurality of screw holes 18 formed in the straight portion 14A of the camera mounting rod 14 at regular intervals along the length direction, a screw hole 19 formed in the vertical rod 11, and a camera. A screw member 20 that is selectively screwed into one of the screw holes 18 of the mounting rod 14 and then screwed into the screw hole 19 of the vertical rod 11. The overall length of the camera support means 2 is adjusted depending on whether the screw hole 18 is screwed.
Further, four ribs 30 are provided on the side wall portion of the vertical rod 11 with an interval of 90 ° in the circumferential direction. The rib 30 extends from the back surface of the connecting plate 10 to the vicinity of the tip of the vertical rod 11. Thereby, the vibration at the time of imaging | photography resulting from the bending of the vertical rod 11 is prevented.

そして、上記のように構成された撮影装置によれば、図５に示されるように、カメラ支持手段２の連結板１０を、保持手段３の受け部材９上に取り付けることによって、該連結板１０に固定された垂直ロッド１１をマンホール１内に配置することができ、該垂直ロッド１１の下端に連結されたカメラ取付ロッド１４のカメラ１３によって該マンホール１内の水平通路１Ａを撮影することができる。また、カメラ１３を１８０度反転させる場合には、取手１０Ａによって連結板１０を受け部材９から持ち上げ反転させた後、該受け部材９に再度取り付けるだけで良く（図６参照）、その反転作業も簡単に行うことができる。 Then, according to the photographing apparatus configured as described above, the connecting plate 10 of the camera support means 2 is mounted on the receiving member 9 of the holding means 3 as shown in FIG. A vertical rod 11 fixed to the manhole 1 can be disposed in the manhole 1, and the horizontal passage 1 </ b> A in the manhole 1 can be photographed by the camera 13 of the camera mounting rod 14 connected to the lower end of the vertical rod 11. . Further, when the camera 13 is reversed 180 degrees, the connecting plate 10 is lifted from the receiving member 9 by the handle 10A and reversed, and then reattached to the receiving member 9 (see FIG. 6). It can be done easily.

また、このような撮影装置では、垂直ロッド１１の下端に、該垂直ロッド１１の回転中心から外方に向けて突出するように配置されてその突出位置にレンズ１２を内方側に向けたカメラ１３が設置されるカメラ取付ロッド１４を連結したので、図７（Ａ）及び（Ｂ）の概略図に示すように、カメラ取付ロッド１４に取り付けられるカメラ設置位置が、回転中心（符号（イ）で示す）よりも外方側に後退して、カメラ１３による地下空間の撮影範囲を広く取ることができる。その結果、垂直ロッド１１をその垂直軸を中心として一定の角度で回転させてパノラマ撮影を行った場合に、従来撮影できなかった符号（ａ）で示す範囲の撮影も可能となって、カメラ撮影による死角を減少又は消滅させることができ、地下空間の保守管理を高い精度で行うことが可能となる。 Further, in such a photographing apparatus, the camera is arranged at the lower end of the vertical rod 11 so as to protrude outward from the rotation center of the vertical rod 11 and the lens 12 is directed inward at the protruding position. Since the camera mounting rod 14 on which the camera 13 is installed is connected, as shown in the schematic diagrams of FIGS. 7A and 7B, the camera installation position attached to the camera mounting rod 14 is the rotation center (reference numeral (A)). It is possible to widen the shooting range of the underground space by the camera 13. As a result, when panoramic photography is performed by rotating the vertical rod 11 around the vertical axis at a certain angle, photography in the range indicated by the symbol (a), which has not been able to be photographed in the past, is possible. It is possible to reduce or eliminate the blind spots caused by, and to maintain and manage the underground space with high accuracy.

また、上記撮影装置では、カメラ支持手段２の連結板１０が取り付けられる受け部材９を、水平軸９Ａを中心として上下に回動可能としたので、マンホール１の地上開口１Ｃが傾斜面１Ｄに設けられていたとしても（図２（Ｂ）参照）、地上開口１Ｃに取り付けられるリング部材４に対して、水平軸９Ａを中心として受け部材９を回動させれば、該受け部材９を水平となるように位置させることができる。そして、水平状態となった受け部材９上に、垂直ロッド１１上端の連結板１０を懸架すれば、該連結板１０に対して直角な垂直ロッド１１が垂直配置され、該垂直ロッド１１をその垂直軸（符号（イ）で示す）を中心に回転させることによって、その下端のカメラ取付ロッド１４に取り付けられるカメラ１３も、同垂直軸を中心に回転し、これにより上下方向に対してずれの無いパノラマ撮影を行うことができる。 Further, in the above photographing apparatus, the receiving member 9 to which the connecting plate 10 of the camera support means 2 is attached can be turned up and down around the horizontal axis 9A, so that the ground opening 1C of the manhole 1 is provided on the inclined surface 1D. (See FIG. 2B), if the receiving member 9 is rotated about the horizontal shaft 9A with respect to the ring member 4 attached to the ground opening 1C, the receiving member 9 is made horizontal. Can be positioned as follows. Then, if the connecting plate 10 at the upper end of the vertical rod 11 is suspended on the receiving member 9 in a horizontal state, the vertical rod 11 perpendicular to the connecting plate 10 is vertically arranged, and the vertical rod 11 is set to its vertical position. By rotating about the axis (indicated by symbol (A)), the camera 13 attached to the camera mounting rod 14 at the lower end also rotates about the same vertical axis, so there is no deviation in the vertical direction. Panorama shooting can be performed.

また、上記撮影装置では、垂直ロッド１１上端の連結板１０が懸架される受け部５の受け部材９を平面視コ字状に形成するとともに、該受け部材９の上面に、垂直ロッド１１上端に位置する正方形状の連結板１０が脱着されることから、該連結板１０を、コ字状の受け部材９に対して９０度ずつ回転させる（９０度、１８０度、２７０度回転させる）ようにすれば、狭い地下空間でも特別な冶具を使用することなく簡単にずれの無い４面のパノラマ写真を撮影することができ、また、受け部材９に対する連結板１０の懸架時にそのコ字状部を貫通するように垂直ロッド１１が配置されるので、連結板１０の回転に伴う垂直ロッド１１の垂直軸を中心とした回転も支障無く行うことが可能となる。 Moreover, in the said imaging device, while the receiving member 9 of the receiving part 5 on which the connection plate 10 of the upper end of the vertical rod 11 is suspended is formed in a U shape in a plan view, the upper surface of the receiving member 9 is formed on the upper end of the vertical rod 11. Since the square-shaped connecting plate 10 is detached, the connecting plate 10 is rotated 90 degrees with respect to the U-shaped receiving member 9 (90 degrees, 180 degrees, and 270 degrees). If this is done, panoramic photographs of four sides without any deviation can be easily taken without using a special jig even in a narrow underground space, and when the connecting plate 10 is suspended with respect to the receiving member 9, Since the vertical rod 11 is disposed so as to penetrate, the vertical rod 11 can be rotated around the vertical axis along with the rotation of the connecting plate 10 without any trouble.

また、上記の撮影装置では、垂直ロッド１１の長さ方向に沿ってカメラ取付ロッド１４の連結位置を変更可能な締結手段１７が設けられているので、この締結手段１７により、地下空間への深さに応じてカメラの設置位置を調整することができる。 Further, in the above-described photographing apparatus, the fastening means 17 capable of changing the connection position of the camera mounting rod 14 along the length direction of the vertical rod 11 is provided. The installation position of the camera can be adjusted accordingly.

また、上記の撮影装置では、受け部材９に、垂直ロッド１１の上端に位置する連結板１０を三点支持することにより固定する止め金具１５及び固定金具１６を設けたので、これら金具１５・１６によって垂直ロッド１１及び垂直ロッド１１に連結されたカメラ取付ロッド１４の揺れを抑え、ぶれ及びずれのないパノラマ写真撮影を行うことが可能となる。 Further, in the above photographing apparatus, since the receiving member 9 is provided with the stopper 15 and the fixing bracket 16 that are fixed by supporting the connecting plate 10 positioned at the upper end of the vertical rod 11 at three points, these brackets 15 and 16 are provided. Thus, it is possible to suppress the shaking of the vertical rod 11 and the camera mounting rod 14 connected to the vertical rod 11 and to take panoramic photographs without shaking and displacement.

なお、上記の実施形態では、保持手段３の受け部５において、水平軸９Ａを中心として受け部材９を側板８に回動自在に設け、この受け部材９によって水平を維持するようにしたが、これに限定されず、図８に示すように、受け部材９を側板８に固定した状態とし、かつカメラ支持手段２の垂直ロッド１１の上端にて、該垂直ロッド１１に対して水平軸１０Ｂを中心として回動自在に連結板１０を設けるようにしても良い。そして、このような構成によって、マンホール１の地上開口１Ｃが傾斜面１Ｄに設けられていたとしても、保持手段３の受け部材９に対して設置した連結板１０が、その水平軸１０Ｂを中心として垂直ロッド１１に対して回動されるので、図８（Ｂ）に示されるように、その自重により垂直ロッド１１が垂直に配置され、その結果、該垂直ロッド１１をその垂直軸（符号（イ）で示す）を中心に回転させることによって、その下端のカメラ取付ロッド１４に取り付けられるカメラ１３も、同垂直軸を中心に回転し、これにより上下方向に対してずれの無いパノラマ撮影を行うことができる。 In the above embodiment, in the receiving portion 5 of the holding means 3, the receiving member 9 is provided on the side plate 8 so as to be rotatable around the horizontal shaft 9 </ b> A, and the horizontal is maintained by the receiving member 9. Without being limited thereto, as shown in FIG. 8, the receiving member 9 is fixed to the side plate 8, and the horizontal axis 10 </ b> B is set with respect to the vertical rod 11 at the upper end of the vertical rod 11 of the camera support means 2. You may make it provide the connection board 10 so that rotation is possible as a center. And even if the ground opening 1C of the manhole 1 is provided in the inclined surface 1D by such a structure, the connection board 10 installed with respect to the receiving member 9 of the holding means 3 is centered on the horizontal axis 10B. Since it is rotated with respect to the vertical rod 11, as shown in FIG. 8 (B), the vertical rod 11 is arranged vertically by its own weight, and as a result, the vertical rod 11 is moved to its vertical axis (sign (i). The camera 13 attached to the camera mounting rod 14 at the lower end of the camera 13 is rotated about the same vertical axis, thereby performing panoramic photography without any deviation in the vertical direction. Can do.

また、上記の実施形態では、作業員が手作業により、カメラ支持手段２の連結板１０を持ち上げ、この連結板１０を受け部材９に対して垂直軸（符号（イ）で示す）を中心として回転させることにより、カメラ支持手段２の全体を方向転換させるようにした（例えば、図５から図６に示すように方向転換）したが、これに限定されず、図９に示すように、垂直ロッド１１の下端に位置する連結軸２１と、カメラ取付ロッド１４の直線部１４の上端に位置する連結軸２２とを同軸上に設けるとともに、一方側である垂直ロッド１１の連結軸２１を筒状に形成し、かつこの筒状の連結軸２１内に他方側であるカメラ取付ロッド１４の連結軸２２を内包し、かつこれら連結軸２１・２２の間に、垂直ロッド１１に対して相対回転するカメラ取付ロッド１４を特定の角度に位置させるための凹凸部２１Ａ・２２Ａ（回転規制部）を設けても良い。この凹凸部２１Ａ・２２Ａは、図９（Ｂ）に示されるように１８０度の位置関係に設けられるものであって、カメラ取付ロッド１４の連結軸２２を、垂直ロッド１１の連結軸２１に対して相対回転させた場合に、凹凸部２１Ａ・２２Ａが互いに係合することにより、カメラ取付ロッド１４を特定の位置に停止かつその位置を保持することができる。そして、このような連結軸２１・２２による垂直ロッド１１とカメラ取付ロッド１４との連結により、カメラ取付ロッド１４を垂直ロッド１１に対して相対回転させるだけで、カメラ取付ロッド１４を特定の角度（本例では１８０度）に正確に位置させることができ、このような該カメラ取付ロッド１４の回転操作によって簡単にずれの無いパノラマ写真を撮影することができる。なお、このような凹凸部２１Ａ・２２Ａの位置は１８０度に限定されず、９０度となるように４箇所設けても良い。また、垂直ロッド１１の連結軸２１を筒状に形成し、かつカメラ取付ロッド１４の連結軸２２を連結軸２１内に内包するようにしたが、カメラ取付ロッド１４の連結軸２２を筒状に形成し、かつ垂直ロッド１１の連結軸２１を、連結軸２２内に内包しても良い。 In the above embodiment, the operator manually lifts the connecting plate 10 of the camera support means 2, and the connecting plate 10 is centered on a vertical axis (indicated by reference symbol (A)) with respect to the receiving member 9. By rotating, the direction of the entire camera support means 2 is changed (for example, as shown in FIGS. 5 to 6), but the present invention is not limited to this, and as shown in FIG. The connecting shaft 21 positioned at the lower end of the rod 11 and the connecting shaft 22 positioned at the upper end of the linear portion 14 of the camera mounting rod 14 are provided coaxially, and the connecting shaft 21 of the vertical rod 11 on one side is cylindrical. The connecting shaft 22 of the camera mounting rod 14 on the other side is included in the cylindrical connecting shaft 21, and rotates relative to the vertical rod 11 between the connecting shafts 21 and 22. Camera mounting lock 14 may be a concave pattern portion 21A · 22A for positioning the specific angle (rotation regulating portion). The uneven portions 21A and 22A are provided in a positional relationship of 180 degrees as shown in FIG. 9B, and the connecting shaft 22 of the camera mounting rod 14 is connected to the connecting shaft 21 of the vertical rod 11. When the concave and convex portions 21A and 22A are engaged with each other, the camera mounting rod 14 can be stopped at a specific position and held at that position. Then, by connecting the vertical rod 11 and the camera mounting rod 14 with the connecting shafts 21 and 22 as described above, the camera mounting rod 14 is simply rotated relative to the vertical rod 11 to move the camera mounting rod 14 to a specific angle ( In this example, it can be accurately positioned 180 degrees), and a panoramic photograph without any deviation can be easily taken by such a rotation operation of the camera mounting rod 14. In addition, the position of such uneven | corrugated | grooved part 21A * 22A is not limited to 180 degree | times, You may provide four places so that it may become 90 degree | times. Further, the connecting shaft 21 of the vertical rod 11 is formed in a cylindrical shape, and the connecting shaft 22 of the camera mounting rod 14 is included in the connecting shaft 21, but the connecting shaft 22 of the camera mounting rod 14 is formed in a cylindrical shape. The connecting shaft 21 of the vertical rod 11 may be included in the connecting shaft 22.

また、上記の実施形態では、カメラ支持手段２をマンホール１内に位置させる保持手段３として、従来から使用されている三脚を使用し、この三脚上に、上述したような、垂直ロッド１１と、この垂直ロッド１１に連結されかつ該垂直ロッド１１の回転中心（符号（イ）で示す）から外方に向けて突出するように配置されてその突出位置にレンズ１２を内方側に向けたカメラ１３が設置されるカメラ取付ロッド１４とからなるカメラ支持手段２を設置しても良い。そして、このような撮影装置では、従来からある三脚の使用によっても、上述したように、カメラ取付ロッド１４に取り付けられるカメラ設置位置を、回転中心（符号（イ）で示す）である垂直ロッド１１よりも後側に後退させて、カメラ１３による撮影範囲を広く取ることができる。その結果、垂直ロッド１１の垂直軸（符号（イ）で示す）を中心として一定の角度で回転させてパノラマ撮影を行った場合に、カメラ撮影による死角を減少又は消滅させることができ、地下空間の保守管理を高い精度で行うことが可能となる。 In the above embodiment, a conventional tripod is used as the holding means 3 for positioning the camera support means 2 in the manhole 1. On the tripod, the vertical rod 11 as described above, A camera connected to the vertical rod 11 and disposed so as to protrude outward from the rotation center (indicated by symbol (a)) of the vertical rod 11, and the lens 12 is directed inward at the protruding position. You may install the camera support means 2 which consists of the camera attachment rod 14 in which 13 is installed. In such a photographing apparatus, even when a conventional tripod is used, as described above, the camera installation position attached to the camera attachment rod 14 is the vertical rod 11 that is the rotation center (indicated by symbol (A)). It is possible to widen the shooting range by the camera 13 by moving it backward. As a result, when panoramic photography is performed with the vertical axis of the vertical rod 11 (indicated by reference symbol (a)) being rotated at a fixed angle, the blind spot due to camera photography can be reduced or eliminated, and the underground space It is possible to perform maintenance management with high accuracy.

また、上記の実施形態では、受け部材９の形状を平面視、コ字状に形成し、かつ、その上面に載置する連結板１０を、これに合致するように平面視、正方形状の連結板１０としたが、これに限定されず、受け部材９が、その中央部に垂直ロッド１１を貫通させる環状形、すなわち、中央部に開口を有する形状となっているのであれば、該受け部材９をコ字状とすることに限定されず、これら形状を、円形、多角形に形成、あるいは平行なバーによって形成しても良い。その際、受け部材９の上面に載置される連結板１０もこれに合致した形状とすると良い。 Further, in the above embodiment, the shape of the receiving member 9 is formed in a U shape in plan view, and the connecting plate 10 placed on the upper surface thereof is connected in square shape in plan view so as to match this. Although it was set as the board 10, it is not limited to this, If the receiving member 9 is the cyclic | annular shape which penetrates the vertical rod 11 in the center part, ie, the shape which has an opening in a center part, this receiving member 9 is not limited to the U-shape, and these shapes may be formed in a circular shape, a polygonal shape, or a parallel bar. At this time, the connecting plate 10 placed on the upper surface of the receiving member 9 is preferably shaped to match this.

また、上記の実施形態では、上述した撮影装置を図１０（Ａ）〜図１０（Ｃ）のように構成しても良い。すなわち、連結板１０の上面にある取手１０Ｂを中央では無く、両側にそれぞれ設け、作業員が両手を用いてカメラ支持手段２を持ち上げるようにしても良い。また、連結板１０の表面に、該連結板１０を上下に貫通する貫通孔１０Ｃを複数設け、これによりカメラ支持手段２の重量を軽減し、これにより取手１０Ｂによる作業員の持ち上げを容易に行わせるようにしても良い。また、連結板１０の下面でかつ垂直ロッド１１の上側部には周方向に９０°の間隔をおいて４枚のリブ３０を設けるようにしたが、このような４枚のリブ３０に代えて一対のＬ型リブ３１を設け、これらＬ型リブ３１で両側から挟むように、垂直ロッド１１を連結板１０の下面に支持、固定するようにしても良い。また、垂直ロッド１１とカメラ取付ロッド１４とを軸方向にスライド可能に連結し、垂直ロッド１１とカメラ取付ロッド１４との間に複数のねじ３２からなる締結手段３３を設けてもよい。そして、垂直ロッド１１に対してカメラ取付ロッド１４を上下にスライドさせ、複数のねじ３２の締結により、該カメラ取付ロッド１４の取付位置を調整するようにしても良い。また、カメラ取付ロッド１４に取り付けるカメラ１３に外部ストロボ１３Ａを取り付け、より鮮明な写真撮影を行うようにしても良い。 In the above embodiment, the above-described photographing apparatus may be configured as shown in FIGS. That is, the handle 10B on the upper surface of the connecting plate 10 may be provided on both sides instead of the center so that the operator lifts the camera support means 2 using both hands. Also, a plurality of through holes 10C penetrating up and down the connecting plate 10 are provided on the surface of the connecting plate 10, thereby reducing the weight of the camera support means 2, and thus the operator can easily lift the handle 10B. You may make it. In addition, four ribs 30 are provided on the lower surface of the connecting plate 10 and on the upper side of the vertical rod 11 at intervals of 90 ° in the circumferential direction, but instead of such four ribs 30. A pair of L-shaped ribs 31 may be provided, and the vertical rod 11 may be supported and fixed to the lower surface of the connecting plate 10 so as to be sandwiched between the L-shaped ribs 31 from both sides. Further, the vertical rod 11 and the camera mounting rod 14 may be slidably connected in the axial direction, and a fastening means 33 including a plurality of screws 32 may be provided between the vertical rod 11 and the camera mounting rod 14. Then, the camera mounting rod 14 may be slid up and down with respect to the vertical rod 11, and the mounting position of the camera mounting rod 14 may be adjusted by fastening a plurality of screws 32. Further, an external strobe 13A may be attached to the camera 13 attached to the camera attachment rod 14 so that clearer photography can be performed.

マンホール１の地上開口１Ｃに取り付けられた保持手段３を示す図であって、（Ａ）は平面図、（Ｂ）は正断面図。It is a figure which shows the holding means 3 attached to the ground opening 1C of the manhole 1, Comprising: (A) is a top view, (B) is a front sectional view. 保持手段３の受け部５の詳細を示す図であって、（Ａ）は正面図、（Ｂ）は受け部５にカメラ支持手段２が取り付けられた場合の正断面図。It is a figure which shows the detail of the receiving part 5 of the holding means 3, Comprising: (A) is a front view, (B) is a front sectional view in case the camera support means 2 is attached to the receiving part 5. FIG. カメラ支持手段２の詳細を示す図であって、（Ａ）は正面図、（Ｂ）は平面図。It is a figure which shows the detail of the camera support means 2, Comprising: (A) is a front view, (B) is a top view. 止め金具１５を示す斜視図。FIG. マンホール１の地上開口１Ｃに取り付けられた保持手段３に、カメラ支持手段２が設置された状態を示す図であって、（Ａ）は平面図、（Ｂ）は正断面図。It is a figure which shows the state in which the camera support means 2 was installed in the holding means 3 attached to the ground opening 1C of the manhole 1, Comprising: (A) is a top view, (B) is a front sectional view. 図５に示すカメラ支持手段２を１８０度反転させた状態の図であって、（Ａ）は平面図、（Ｂ）は正断面図。It is a figure of the state which reversed the camera support means 2 shown in FIG. 5 180 degree | times, Comprising: (A) is a top view, (B) is a front sectional view. 本発明の効果を説明するための平面図で、（Ａ）は正面図、（Ｂ）は平面図。It is a top view for demonstrating the effect of this invention, (A) is a front view, (B) is a top view. （Ａ）はカメラ支持手段２の他の例を示す正面図、（Ｂ）はこのカメラ支持手段２が保持手段３に取り付けられた状態を示す正断面図。(A) is a front view showing another example of the camera support means 2, and (B) is a front sectional view showing a state in which the camera support means 2 is attached to the holding means 3. （Ａ）は垂直ロッド１１とカメラ取付ロッド１４の連結状態の他の例を示す正断面図、（Ｂ）は（Ａ）をＩＸ−ＩＸ線で切断した場合の断面図(A) is a front sectional view showing another example of the connected state of the vertical rod 11 and the camera mounting rod 14, and (B) is a sectional view when (A) is cut along the IX-IX line. （Ａ）はカメラ支持手段２の他の例を示す正面図、（Ｂ）はその正断面図、（Ｃ）はその側面図。(A) is the front view which shows the other example of the camera support means 2, (B) is the front sectional view, (C) is the side view. 従来の三脚を使用した撮影装置を示す図であって、（Ａ）は正面図、（Ｂ）は問題点を説明するための平面図。It is a figure which shows the imaging device using the conventional tripod, Comprising: (A) is a front view, (B) is a top view for demonstrating a problem.

Explanation of symbols

１マンホール（地下空間）
１Ｃ地上開口
２カメラ支持手段
３保持手段
５受け部
９受け部材
１０連結板
１０Ｂ水平軸
１１垂直ロッド
１２レンズ
１３カメラ
１４カメラ取付ロッド
１４Ａ直線部
１５止め金具（固定手段）
１６固定金具（固定手段）
１７締結手段
２１連結軸
２２連結軸
３３締結手段 1 Manhole (underground space)
DESCRIPTION OF SYMBOLS 1C Ground opening 2 Camera support means 3 Holding means 5 Receiving part 9 Receiving member 10 Connecting plate 10B Horizontal axis 11 Vertical rod 12 Lens 13 Camera 14 Camera mounting rod 14A Linear part 15 Fastening (fixing means)
16 Fixing bracket (fixing means)
17 fastening means 21 connecting shaft 22 connecting shaft 33 fastening means

Claims

Camera support means to which a camera for photographing the inside of the underground space is attached;
Holding means for holding the camera support means at the photographing position in the underground space,
The camera support means is
A long vertical rod supported so as to be perpendicular to the holding means and whose vertical axis is the center of rotation;
A camera mounting rod connected to the vertical rod and disposed so as to protrude outward from the rotation center of the vertical rod, and a camera with the lens facing inward is installed at the protruding position. An imaging apparatus characterized by that.

A connecting plate is fixed to the upper end of the vertical rod of the camera support means so as to be perpendicular to the vertical rod body,
The holding means is
A ring member attached to the ground hole in the underground space;
A receiving portion disposed in the ring member and provided so as to rotate up and down about a horizontal axis, and detachably suspending the connecting plate at the upper end of the vertical rod. 1. The photographing apparatus according to 1.

A connection plate is provided at the upper end of the vertical rod of the camera support means so as to be rotatable about a horizontal axis with respect to the vertical rod body,
The holding means is
A ring member attached to the ground hole in the underground space;
The photographing apparatus according to claim 1, further comprising: a receiving portion provided in the ring member and detachably suspending the connecting plate at the upper end of the vertical rod.

The receiving member of the receiving part is formed in a shape having an opening in the center, and a connecting plate located at the upper end of the vertical rod and detachably suspended according to the shape of the receiving member is detachably suspended on the upper surface of the receiving member. 4. The photographing apparatus according to claim 2, wherein the vertical rod is disposed so as to penetrate through the opening of the receiving member when suspended.

The photographing apparatus according to claim 2 or 3, wherein the receiving portion is provided with a fixing means for fixing the connecting plate positioned at the upper end of the vertical rod by supporting the connection plate at three points.

The connecting portion between the vertical rod and the camera mounting rod is provided with fastening means capable of changing the connection position of the camera mounting rod along the length direction of the vertical rod. The imaging device according to any one of items 5 to 6.

The connecting shafts of the camera mounting rod and the vertical rod are arranged coaxially, and one shaft is formed in a cylindrical shape, and the other shaft is included in this cylindrical shaft so that both shafts rotate relative to each other. It ’s free,
The rotation restricting portion for positioning the camera mounting rod that rotates relative to the vertical rod at a specific angle is provided between the shafts. The imaging device described.

The photographing apparatus according to claim 1, wherein the holding unit is a tripod.