JPH0539455Y2 - - Google Patents

Info

Publication number
JPH0539455Y2
JPH0539455Y2 JP2749190U JP2749190U JPH0539455Y2 JP H0539455 Y2 JPH0539455 Y2 JP H0539455Y2 JP 2749190 U JP2749190 U JP 2749190U JP 2749190 U JP2749190 U JP 2749190U JP H0539455 Y2 JPH0539455 Y2 JP H0539455Y2
Authority
JP
Japan
Prior art keywords
cylinder
inner cylinder
line
intermediate cylinder
diameter line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP2749190U
Other languages
Japanese (ja)
Other versions
JPH03117718U (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP2749190U priority Critical patent/JPH0539455Y2/ja
Publication of JPH03117718U publication Critical patent/JPH03117718U/ja
Application granted granted Critical
Publication of JPH0539455Y2 publication Critical patent/JPH0539455Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)

Description

【考案の詳細な説明】 〔産業上の利用分野〕 この考案は、高圧線など高所に位置する線の直
下を明示するために使用するものである。
[Detailed description of the invention] [Industrial field of application] This invention is used to clearly indicate what is directly below a line located at a high place, such as a high-voltage line.

〔従来の技術〕[Conventional technology]

従来より高圧線の下に建物を建てる場合におい
ては地域的に制限される場合がある。例えば17万
V以上の送電線の下に建物を建てる場合において
は直下から3m以上離れて建てなければならない
とされている。
Traditionally, there are regional restrictions when building buildings under high-voltage lines. For example, when building a building under a power transmission line with a voltage of 170,000 V or more, it must be built at least 3 meters away from the line directly below it.

このような場合、送電線の直下がどの地点であ
るかを知る必要がある。
In such cases, it is necessary to know which point is directly under the power transmission line.

従来は、送電線の基点となる鉄塔を基にした測
量により送電線の直下を決めたり、目測により決
定していた。
Previously, the location directly below the power line was determined by surveying based on the steel tower that serves as the base point of the power line, or by visual measurement.

〔本考案が解決しようとする課題〕[Problem that this invention attempts to solve]

しかし、上記前者の方法では測量のために精巧
な測量資材を必要とし、測量のための時間を要
し、さらに、地形が複雑なところでは測量が困難
であつた。
However, the former method requires sophisticated surveying materials and time, and is difficult to survey in areas with complex topography.

また、後者の方法では、人による誤差が大きく
不適当であつた。
Furthermore, the latter method was inappropriate due to large human errors.

本考案は前記問題を解決し得る装置を提供する
ことを目的とするものである。
The object of the present invention is to provide a device that can solve the above problems.

〔課題を解決するための手段〕[Means to solve the problem]

本考案は、外筒内に中間筒が遊動可能に配置さ
れ、中間筒内に内筒が遊動可能に配置され、中間
筒の上部で、かつ、中間筒の直径線上の点が外筒
に枢支され、内筒の上部で、かつ、上記中間筒の
直径線に直交する内筒の直径線上の点が中間筒に
枢支され、内筒の底壁内面が、内筒の軸線に直交
する鏡面とされ、内筒内の直径線上に細糸が張設
され、内筒の中心に重錘が垂下されてなることを
特徴とする。
In the present invention, the intermediate cylinder is movably disposed within the outer cylinder, the inner cylinder is movably disposed within the intermediate cylinder, and a point on the diameter line of the intermediate cylinder is pivoted to the outer cylinder at the upper part of the intermediate cylinder. A point on the diameter line of the inner cylinder that is at the upper part of the inner cylinder and perpendicular to the diameter line of the intermediate cylinder is pivotally supported by the intermediate cylinder, and the inner surface of the bottom wall of the inner cylinder is perpendicular to the axis of the inner cylinder. It has a mirror surface, a thin thread is stretched along the diameter line inside the inner cylinder, and a weight is suspended from the center of the inner cylinder.

外筒、中間筒、内筒というのは円筒が製作上好
ましいが、角筒、だ円筒等であつてもよい、円筒
以外の場合、直径線上というのは、筒の軸線を鉛
直線に一致させたとき、筒の重心点の鉛直上方の
点を通る直線上という意味である。
It is preferable for the outer cylinder, intermediate cylinder, and inner cylinder to be cylindrical for manufacturing purposes, but they may also be rectangular cylinders, elliptical cylinders, etc. In the case of other than cylinders, diametrical line means that the axis of the cylinder coincides with the vertical line. This means that it is on a straight line passing through a point vertically above the center of gravity of the cylinder.

遊動可能というのは、外側の筒の中で内側の筒
が自由に動き得る隙間を有していることである。
The term "movable" means that there is a gap in which the inner tube can move freely within the outer tube.

枢支というのは、2点を支持され、2点を通る
線を中心に動くように支持することである。
A pivot means that something is supported at two points so that it can move around a line that passes through those two points.

(作用) 外筒に中間筒を遊動可能に配置すると共に中間
筒を外筒に枢支していることで、内筒の枢支点を
結ぶ線が水平となり、さらに内筒が中間筒に枢支
されていることにより、内筒の底壁が水平面とな
る。したがつて外筒を支持して中間筒及び内筒が
静止したとき、内筒の底壁内面に形成した鏡面が
水平となる。
(Function) By arranging the intermediate cylinder freely in the outer cylinder and pivoting the intermediate cylinder to the outer cylinder, the line connecting the pivot points of the inner cylinder becomes horizontal, and the inner cylinder also pivots to the intermediate cylinder. Due to this, the bottom wall of the inner cylinder becomes a horizontal surface. Therefore, when the intermediate cylinder and the inner cylinder stand still while supporting the outer cylinder, the mirror surface formed on the inner surface of the bottom wall of the inner cylinder becomes horizontal.

そして内筒に張つた糸と鏡面に写つた糸の像と
を結ぶ面は鉛直面となる。
The plane connecting the thread stretched on the inner cylinder and the image of the thread reflected on the mirror surface becomes a vertical plane.

この鉛直面上に高圧線が位置するよう装置を置
いたとき、内筒中心に垂下した重錘の位置が、高
圧線の直下となる。
When the device is placed so that the high-voltage line is located on this vertical plane, the position of the weight hanging from the center of the inner cylinder will be directly below the high-voltage line.

3個の筒体を相互に枢支させ、これに重錘を垂
下させたものであるので、小さく製作することが
でき、重量も軽くでき、操作も容易なものであ
る。
Since it is made up of three cylindrical bodies that are mutually supported and a weight suspended from them, it can be made small, light in weight, and easy to operate.

(実施例) 本考案の実施例を図面に示す。(Example) An embodiment of the invention is shown in the drawings.

1は外筒、2は中間筒、3は内筒である。各筒
1,2,3、は塩化ビニール製の変形し難い筒体
を切断して作製している。中間筒2は外筒1より
小さく、外筒内で径方向に十分動き得る大きさの
ものとし、内筒も同様に中間筒2内で十分動き得
る大きさのものを使用した。
1 is an outer cylinder, 2 is an intermediate cylinder, and 3 is an inner cylinder. Each tube 1, 2, 3 is made by cutting a hard-to-deform cylinder made of vinyl chloride. The intermediate cylinder 2 is smaller than the outer cylinder 1 and has a size that allows sufficient movement in the radial direction within the outer cylinder, and the inner cylinder is similarly large enough to allow sufficient movement within the intermediate cylinder 2.

中間筒2は、その上部における直径線上の相対
向する2点を、外筒1に取りつけた第1枢支ピン
4,4で支持した。このとき中間筒2は第1枢支
ピン4,4を中心として自在に揺動し得るように
した。
The intermediate cylinder 2 was supported by first pivot pins 4, 4 attached to the outer cylinder 1 at two opposing points on its upper diameter line. At this time, the intermediate cylinder 2 can freely swing around the first pivot pins 4, 4.

内筒3は、第1枢支ピン4を通る位置より少し
下の位置において、中間筒2に枢支した。内筒3
の枢支は、第1枢支ピン4を結ぶ線と直角な直径
線を含む鉛直面上に位置する第2枢支ピン5,5
によつて枢支した。
The inner cylinder 3 was pivoted to the intermediate cylinder 2 at a position slightly below the position passing through the first pivot pin 4. Inner cylinder 3
The pivot pins 5 and 5 are located on a vertical plane including a diameter line perpendicular to the line connecting the first pivot pins 4.
It was supported by

内筒3の底壁6は、内筒3の軸中心に直角な面
とし、その内面を鏡面7とした。
The bottom wall 6 of the inner cylinder 3 has a surface perpendicular to the axial center of the inner cylinder 3, and its inner surface has a mirror surface 7.

内筒3の上端を架け渡して水糸8を固定した。
水糸8は内筒3の直径線上を通るように張線し
た。内筒3の底壁下面中心に吊下糸9を取りつ
け、吊下糸9の先端に重錘10を取りつけた。吊
下糸は重錘を吊下げ得るものであればよい。16
は外筒に取りつけた折り畳み可能もしくは取り外
し可能な脚である。
The water line 8 was fixed by spanning the upper end of the inner cylinder 3.
The water string 8 was stretched so as to pass along the diameter line of the inner cylinder 3. A hanging string 9 was attached to the center of the lower surface of the bottom wall of the inner cylinder 3, and a weight 10 was attached to the tip of the hanging string 9. The suspension string may be any type as long as it can suspend the weight. 16
are foldable or removable legs attached to the barrel.

次にこの実施例により線下を明示する方法を説
明する。
Next, a method for clearly indicating the underline will be explained using this embodiment.

まず、目測により線下の位置をきめ、その位置
に線下明示器Aを持つてくる。そして内筒3が静
止するのを待つて、糸9と糸の像11とが一致す
る位置に測量者の目13の像13Aを一致させ
る。それによつて目13と糸9とが鉛直面14上
にあることとなる。この状態を保ちながら、外筒
を持つてゆつくり動かし、高圧線15の像15A
が目13と糸9とを結ぶ面上に一致するまで移動
し、一致したらその点に外筒1を脚16で立て内
筒3が完全に静止した状態で確認する。
First, determine the position under the line by visual measurement, and bring the underline clarifying device A to that position. After waiting for the inner cylinder 3 to come to rest, the image 13A of the surveyor's eye 13 is aligned with the position where the string 9 and the string image 11 are aligned. As a result, the eye 13 and the thread 9 are on the vertical plane 14. While maintaining this state, hold the outer cylinder and slowly move it to create an image 15A of the high voltage line 15.
The outer tube 1 is moved until it coincides with the plane connecting the eye 13 and the thread 9, and when the outer tube 1 is aligned with the leg 16, it is confirmed that the inner tube 3 is completely stationary.

これで、糸9と糸の像11と高圧線15の像1
5Aとが一直線上にあれば、そのときの重錘10
の示す位置が線下を明示していることとなるので
ある。
Now, the thread 9, the thread image 11, and the high voltage wire 15 image 1
If 5A is on a straight line, then the weight 10
The position indicated by is clearly indicating the area under the line.

なお本考案は高圧線に限らず、高所に位置する
物の直下を簡易に明示するのに使用し得るもので
ある。
Note that the present invention is not limited to high-voltage lines, and can be used to easily indicate directly below objects located at high places.

(考案の効果) 本考案は以上のとおり外筒内に中間筒が遊動可
能に配置され、中間筒内に内筒が遊動可能に配置
され、中間筒の上部で、かつ、中間筒の直径線上
の点が外筒に枢支され、内筒の上部で、かつ、上
記中間筒の直径線に直交する内筒の直径線上の点
が中間筒に枢支され、内筒の底壁内面が、内筒の
軸線に直交する鏡面とされ、内筒内の直径線上に
細糸が張設され、内筒の中心に重錘が垂下されて
なるので、簡易に装置を製作でき、しかも使用に
際して目的とする位置に本考案明示器を持つて行
きさえすれば可能なので線下の地理的条件が悪い
場合でも容易に作業ができる。しかも、外筒を持
つて静止させるだけで、内筒が鉛直面を明示する
ので、外筒を完全な水平に保持する必要がなく、
作業者の熟練を必要としない。
(Effect of the invention) As described above, in the present invention, the intermediate cylinder is movably disposed within the outer cylinder, the inner cylinder is movably disposed within the intermediate cylinder, and the inner cylinder is disposed above the intermediate cylinder and on the diameter line of the intermediate cylinder. A point at the top of the inner cylinder and on the diameter line of the inner cylinder perpendicular to the diameter line of the intermediate cylinder is supported by the intermediate cylinder, and the inner surface of the bottom wall of the inner cylinder is The inner cylinder has a mirror surface that is perpendicular to its axis, a thin thread is stretched along the diameter line of the inner cylinder, and a weight is suspended from the center of the inner cylinder, making it easy to manufacture the device and to meet the intended purpose. This can be done by simply carrying the device of the present invention to the desired location, so the work can be done easily even if the geographical conditions below the line are poor. Moreover, just by holding the outer cylinder and holding it still, the inner cylinder clearly shows the vertical plane, so there is no need to hold the outer cylinder completely horizontally.
Does not require operator skill.

さらに、20mの高さの高圧線について本考案に
よつて明示した位置と精巧な測量器によつて測量
した地点との誤差を試験したところ、誤差は最大
で5cmであり、実用上支障ないものであつた。
Furthermore, when testing the error between the position specified by the present invention and the point surveyed using a sophisticated surveying instrument for a 20m-high high-voltage line, the error was at most 5cm, which does not pose a practical problem. It was hot.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本考案明示器の実施例を示す平面図、
第2図は同X−X断面図、第3図は使用状態を示
す概要図である。 A……明示器、1……外筒、2……中間筒、3
……内筒、4……第1枢支ピン、5……第2枢支
ピン、6……底壁、7……鏡面、8……糸、9…
…吊下糸、10……重錘、11……糸の像、13
……目、13A……目の像、14……鉛直線、1
5……高圧線、15A……高圧線の像、16……
脚。
FIG. 1 is a plan view showing an embodiment of the present device;
FIG. 2 is a sectional view taken along the line XX, and FIG. 3 is a schematic diagram showing the state of use. A...Display device, 1...Outer cylinder, 2...Intermediate cylinder, 3
...Inner cylinder, 4...First pivot pin, 5...Second pivot pin, 6...Bottom wall, 7...Mirror surface, 8...Thread, 9...
...Hanging thread, 10... Weight, 11... Thread image, 13
...eye, 13A...eye image, 14...vertical line, 1
5...High voltage line, 15A... Image of high voltage line, 16...
leg.

Claims (1)

【実用新案登録請求の範囲】 外筒内に中間筒が遊動可能に配置され、中間筒
内に内筒が遊動可能に配置され、中間筒の上部
で、かつ、中間筒の直径線上の点が外筒に枢支さ
れ、 内筒の上部で、かつ、上記中間筒の直径線に直
交する内筒の直径線上の点が中間筒に枢支され、 内筒の底壁内面が、内筒の軸線に直交する鏡面
とされ、 内筒内の直径線上に細糸が張設され、内筒の中
心に重錘が垂下されてなる 簡易線下明示器。
[Claims for Utility Model Registration] An intermediate cylinder is movably disposed within the outer cylinder, an inner cylinder is movably disposed within the intermediate cylinder, and a point on the diameter line of the intermediate cylinder is located at the upper part of the intermediate cylinder. A point on the diameter line of the inner cylinder that is at the upper part of the inner cylinder and perpendicular to the diameter line of the intermediate cylinder is pivotally supported on the outer cylinder, and the inner surface of the bottom wall of the inner cylinder is connected to the inner cylinder. A simple line indicator with a mirror surface perpendicular to the axis, a thin thread stretched along the diameter line inside the inner cylinder, and a weight suspended from the center of the inner cylinder.
JP2749190U 1990-03-16 1990-03-16 Expired - Lifetime JPH0539455Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2749190U JPH0539455Y2 (en) 1990-03-16 1990-03-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2749190U JPH0539455Y2 (en) 1990-03-16 1990-03-16

Publications (2)

Publication Number Publication Date
JPH03117718U JPH03117718U (en) 1991-12-05
JPH0539455Y2 true JPH0539455Y2 (en) 1993-10-06

Family

ID=31530344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2749190U Expired - Lifetime JPH0539455Y2 (en) 1990-03-16 1990-03-16

Country Status (1)

Country Link
JP (1) JPH0539455Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5878230B1 (en) * 2014-12-24 2016-03-08 中国電力株式会社 Simple line clarifier

Also Published As

Publication number Publication date
JPH03117718U (en) 1991-12-05

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