JPH049522Y2 - - Google Patents
Info
- Publication number
- JPH049522Y2 JPH049522Y2 JP1984058416U JP5841684U JPH049522Y2 JP H049522 Y2 JPH049522 Y2 JP H049522Y2 JP 1984058416 U JP1984058416 U JP 1984058416U JP 5841684 U JP5841684 U JP 5841684U JP H049522 Y2 JPH049522 Y2 JP H049522Y2
- Authority
- JP
- Japan
- Prior art keywords
- degrees
- gauge
- tube
- circle
- divided
- 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
Links
- 230000002950 deficient Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、各種管路の内面状況を撮影した写真
の判定用ゲージに関するものである。[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a gauge for determining photographs taken of the internal conditions of various pipes.
（従来技術とその問題点）
輸送管等の内面状況を観察する手段として、本
出願人のうちの一社は各種の管内面撮影装置を提
案した（実開昭58−192641号、実願昭57−156574
号等）。これら管内面撮影装置は管路が長い場合
や内径150mm程度の小径管および曲管部における
管の内面状況を良好に撮影でき、その判定に際し
ての有効な写真を提供することができるものであ
る。(Prior art and its problems) As a means of observing the inner surface conditions of transport pipes, one of the applicants proposed various tube inner surface photographing devices (Utility Model Application No. 192641/1983; 57−156574
No. etc.). These pipe inner surface photographing devices can take good pictures of the inner surface of pipes in long pipes, small diameter pipes with an inner diameter of about 150 mm, and curved pipe sections, and can provide effective photographs for making judgments.
しかし、上記写真を用いて管内面における欠陥
部の大きさを測定する場合には事務用スケールを
用いて行なうのであるが、上記スケールによる測
定値は、写真の焼増しによる倍率がその都度異な
ること、また同一管径であつても写真上の径が異
なること等の理由により、この写真の測定値では
正確な形状寸法を得ることができない。そこで、
写真上の管径ａmmと実際の管径ｂmmを用いて、写
真上の長さｌmmを実際の長さに下記式を用いて換
算する必要があつた。 However, when measuring the size of the defect on the inner surface of a tube using the above photograph, an office scale is used, but the measurement value using the above scale is different each time due to the fact that the magnification of the photograph is different each time. Furthermore, even if the pipe diameter is the same, the diameter on the photograph is different, so it is not possible to obtain accurate shape and dimensions from the measured values from this photograph. Therefore,
It was necessary to use the tube diameter amm on the photo and the actual tube diameter bmm to convert the length lmm on the photo to the actual length using the following formula.
実際の長さ＝ａ／ｂ×ｌ（mm）
このように換算した場合でも、スケールで円弧
の長さを測定する為、正確な測定値を得ることが
困難であり、かつ個人差がでるという問題があつ
た。 Actual length = a/b x l (mm) Even when converted in this way, it is difficult to obtain accurate measurements because the length of the arc is measured using a scale, and there are individual differences. There was a problem.
（考案の目的）
本考案は上記問題点に鑑みてなされたものであ
り、管内面の状況を撮影した写真を判定する場合
に、個人差がなくかつ簡単・正確に欠陥部の大き
さを測定することができる管内面写真判定用ゲー
ジを提供せんとするものである。(Purpose of the invention) The present invention was created in view of the above problems, and is intended to easily and accurately measure the size of a defect without individual differences when evaluating photographs taken of the condition of the inner surface of a tube. The present invention aims to provide a gauge for photographic determination of the inner surface of a tube.
（考案の構成）
管内面全周を撮影した管内面写真を判定するた
めのゲージであつて、透明フイルムに罫書いた中
心点とこれを囲む適数の同心円を内在した所要径
の円内における少くとも90度の範囲内を10度宛区
分し、残りを適宜区分すると共に、上記10度宛区
分した範囲内を更に１度から９度まで順次区分せ
しめた夫々放射方向に縦通する角度区分線とを具
備して成ることを要旨とする管内面写真判定用ゲ
ージである。(Structure of the device) This is a gauge for judging a tube inner surface photograph taken of the entire circumference of the tube inner surface. At least the 90 degree range is divided into 10 degrees, the rest is divided as appropriate, and the range divided into 10 degrees is further divided sequentially from 1 degree to 9 degrees, each extending vertically in the radial direction. This is a gauge for photographic determination of the inner surface of a tube, comprising: a wire;
（実施例）
以下本考案を添付図面に示す一実施例に基づい
て詳細に説明する。(Example) The present invention will be described in detail below based on an example shown in the accompanying drawings.
図面において、１は透明フイルム２に罫書いた
所要径の円であり、該円１内には90度の角度を有
する２本の大区分線３，３が直径線上に罫書かれ
ている。そして、これら２本の大区分線３，３間
には、これを10度宛区分する中区分線４が罫書か
れ、更にこれら中区分線４，４間には例えば図面
における時計回り方向に順次中区分線より１度、
２度、３度、……、８度、９度となる小区分線５
１，５2，５3，……５8，５9が罫書かれている。 In the drawing, reference numeral 1 is a circle of a required diameter marked on a transparent film 2, and within the circle 1, two large dividing lines 3, 3 having an angle of 90 degrees are marked on the diameter line. Then, between these two large dividing lines 3 and 3, a medium dividing line 4 is marked to divide this by 10 degrees, and between these medium dividing lines 4 and 4, for example, in order in the clockwise direction in the drawing, 1 degree from the middle dividing line,
Subdivision line 5 that is 2 degrees, 3 degrees, ..., 8 degrees, 9 degrees
1 , 5 2 , 5 3 , ...5 8 , 5 9 are marked.
本実施例では上記円１内に半径の異なる同心円
６1……６4を４つ罫書き、このうちの最小径の同
心円６1と最大径の同心円６4間に上記小区分線５
１……５9を罫書くと共に、最大径の同心円６4と
円１間における上記中区分線４で区分された空間
には時計回り方向に順次１〜９の番号を符して中
区分線４と図面におけるこれと右側の小区分線５
とで形成する角度が解りやすいようにしている。
また本実施例では、大区分線３と中区分線４で区
分されて１の番号を符した部分の左側に10度の角
度を有する中区分線４を罫書いて上記と同様に０
の番号を符したものを示している。更に本実施例
では、上記０〜９の番号を符した100度の範囲内
に罫書かれた各区分線と同じものを、円１の中心
に対して点対称の位置に罫書き、かつ、大区分線
３，３間に罫書かれた各区分線以外の部分を区分
線７で30度宛区分したものを示している。 In this embodiment, four concentric circles 6 1 ... 6 4 with different radii are marked in the circle 1, and the subdivision line 5 is placed between the concentric circle 6 1 with the smallest diameter and the concentric circle 6 4 with the largest diameter.
1 ... 5 9 , and in the space divided by the above-mentioned middle dividing line 4 between the concentric circle 6 4 of the largest diameter and circle 1, mark the numbers 1 to 9 in the clockwise direction and mark the middle dividing line. 4 and this and the subdivision line 5 on the right side in the drawing
The angle formed by and is made easy to understand.
In addition, in this embodiment, a middle dividing line 4 having an angle of 10 degrees is marked on the left side of the part divided by the large dividing line 3 and the middle dividing line 4 and marked with the number 1.
It shows the number marked. Furthermore, in this embodiment, the same marking lines as those marked within the range of 100 degrees marked with the numbers 0 to 9 are marked at points symmetrical with respect to the center of the circle 1, and large The part other than the markings between marking lines 3 and 3 is divided by marking line 7 at 30 degrees.
なお、本実施例では上記円１を透明フイルム２
に罫書いたものを示したが、これに限るものでは
なく、透明フイルム製の円板を用いてもよいこと
は勿論である。 In this example, the circle 1 is replaced by a transparent film 2.
Although a lined plate is shown, the present invention is not limited to this, and it goes without saying that a disc made of transparent film may also be used.
（考案の作用）
上記したような本考案のゲージを用いて、管内
面写真に写つた欠陥部分の大きさを測定するには
先ず上記管内面写真上に本考案に係るゲージを載
せてゲージの円１または６を写真の管円部に対し
て同心円となるように位置決めする。次にゲージ
の中心に例えば針ピンを当て、ゲージを回転させ
ながらゲージに罫書いた大区分線３または中区分
線４の１つと小区分線５の１つとの間に上記欠陥
部がその両端を挟まれた状態に収まるように測定
する。(Function of the invention) In order to measure the size of the defective part shown in the photograph of the inner surface of a tube using the gauge of the present invention as described above, first place the gauge according to the present invention on the photograph of the inner surface of the tube, and then measure the gauge. Position circle 1 or 6 so that it is concentric with the tube circle in the photograph. Next, place a needle pin, for example, at the center of the gauge, and while rotating the gauge, the defective part is located between one of the major division lines 3 or medium division lines 4 and one of the minor division lines 5, which are marked on the gauge. Measure so that it fits between the two.
例えば、欠陥部の角度が23度の場合には第２図
に示すように管内面写真と、ゲージとを合わせる
のである。 For example, if the angle of the defect is 23 degrees, match the tube inner surface photograph with the gauge as shown in Figure 2.
そして、撮影した管の内径が例えばφ155.2とす
ると１度当りの欠陥部の長さは、
（155.2×π）／360°＝欠陥部長さ／1° ……
で表わされる為、
155.2π／360＝1.35／1°
∴1.35×23°＝31.05mm
故に、欠陥部の角度が23度の場合には欠陥部の
長さは31.05mmとなる。 If the inner diameter of the tube to be photographed is, for example, φ155.2, then the length of the defect per degree is expressed as (155.2×π)/360°=length of defective portion/1°...so 155.2π/ 360=1.35/1° ∴1.35×23°=31.05mm Therefore, if the angle of the defective part is 23 degrees, the length of the defective part will be 31.05mm.
上記式の関係は写真の大きさが変わつた場合
にも変化せず、ただ撮影される管径が変更された
場合に、１度当りの長さが変るだけである。 The relationship in the above equation does not change even when the size of the photograph changes; only the length per degree changes when the diameter of the tube through which the photograph is taken changes.
（考案の効果）
以上述べたように本考案によれば、簡単かつ正
確にしかも個人差がなく管内面写真の判定が行な
え、本出願人のうちの一社が先に考案した管内面
撮影装置の効果を更に大なるものとすることがで
きる。(Effects of the invention) As described above, according to the present invention, images of the inside of a tube can be easily and accurately judged without individual differences, and the inside-of-tube photographing device, which was previously devised by one of the applicants, The effect can be further increased.
第１図は本考案に係る管内面写真判定用ゲージ
の一実施例を示す図面、第２図は同様のゲージを
用いて欠陥部分の角度が23度のものを判定する時
の説明図である。
１は円、２は透明フイルム、３は大区分線、４
は中区分線、５は小区分線。
Fig. 1 is a diagram showing an embodiment of the gauge for determining a photo of the inner surface of a tube according to the present invention, and Fig. 2 is an explanatory diagram when using the same gauge to determine a defective part with an angle of 23 degrees. . 1 is a circle, 2 is a transparent film, 3 is a large dividing line, 4
is the middle division line, and 5 is the small division line.
Claims (1)
めのゲージであつて、透明フイルムに罫書いた中
心点とこれを囲む適数の同心円を内在した所要径
の円と、該円内における少なくとも90度の範囲内
を10度宛区分し、残りを適宜区分すると共に、上
記10度宛区分した範囲内を更に１度から９度まで
順次区分せしめた夫々放射方向に縦通する角度区
分線とを具備して成ることを特徴とする管内面写
真判定用ゲージ。 It is a gauge for judging a tube inner surface photograph taken from the entire circumference of the tube inner surface, and it is a gauge that has a center point marked on a transparent film, a circle of a required diameter that includes an appropriate number of concentric circles surrounding the center point, and at least one circle within the circle. The range of 90 degrees is divided into 10 degrees, the rest is divided as appropriate, and the range divided into 10 degrees is further divided sequentially from 1 degree to 9 degrees, each of which runs vertically in the radial direction. A gauge for photographic determination of the inner surface of a tube, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5841684U JPS60170701U (en) | 1984-04-20 | 1984-04-20 | Gauge for photo evaluation of tube inner surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5841684U JPS60170701U (en) | 1984-04-20 | 1984-04-20 | Gauge for photo evaluation of tube inner surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60170701U JPS60170701U (en) | 1985-11-12 |
| JPH049522Y2 true JPH049522Y2 (en) | 1992-03-10 |
Family
ID=30583892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5841684U Granted JPS60170701U (en) | 1984-04-20 | 1984-04-20 | Gauge for photo evaluation of tube inner surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60170701U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56149693U (en) * | 1980-04-10 | 1981-11-10 |
-
1984
- 1984-04-20 JP JP5841684U patent/JPS60170701U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60170701U (en) | 1985-11-12 |
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