JP2008096160A

JP2008096160A - Tool for determining bending of elongated columnar object

Info

Publication number: JP2008096160A
Application number: JP2006275529A
Authority: JP
Inventors: Katsutoshi Hamashima; 勝利浜島; Eiichi Murakami; 栄一村上
Original assignee: Meishin Electric Co Inc
Current assignee: Meishin Electric Co Inc
Priority date: 2006-10-06
Filing date: 2006-10-06
Publication date: 2008-04-24
Anticipated expiration: 2026-10-06
Also published as: JP5084219B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tool for determining bending of an elongated columnar object, which has a simple structure, can be easily operated by anyone and make its production cost low. <P>SOLUTION: The tool comprises a centering device 10 and a determining device 20 which are arranged on the outer circumferential surface k of the elongate columnar object K, set horizontally and determine the degree of its bending. The centering device 10 has a first transparent see-through plate 11, representing a first center indicating line 16; the determining device 20 has second/third transparent see-through plates 21, 22 being parallel to each other and representing second/third center indicating lines 25, 26; a determining line 30 for determining the bending degree on the distal side of the elongate columnar object K is indicated so as to be parallel to the third center indicating line 26 and spaced by a prescribed distance from the third center indicating line 26; the centering device 10 and the determining device 20 are in turn arranged on the outer circumferential surface on the proximal side of the electric pole K so as to head from the distal side to the proximal side and to be spaced by a prescribed distance from each other; and the degree of bending of the elongate columnar object K can be determined, by using the determining line 30 as a reference. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、一度使用され撤去後の電柱等の円柱長尺物を再使用する場合、その先端側の湾曲度を確認して該円柱長尺物が再使用できるか否か甲・乙判定するための円柱長尺物の湾曲判定具に関するものである。 In the present invention, when reusing a long cylindrical object such as a utility pole that has been used once and removed, it is determined whether the long cylindrical object can be reused by checking the degree of curvature at the tip side. The present invention relates to a bending judgment tool for a long cylindrical object.

従来、円柱長尺物として例えばコンクリート製の電柱がある。該電柱は地上に建てられ電線が架設されるが、亀裂や疲労による強度低下などによって倒壊する危険性を防止する主旨から前記電柱を地上から非破壊でその湾曲程度を測定する装置が開発されている。この装置は、電柱の全体像を撮像し、画像処理により電柱輪郭線を求め、その電柱輪郭線に最も重なり度合いの大きい仮定直線と仮定折れ線をそれらの線が通る座標の濃度値の加算値の最大値で求め、その仮定直線と仮定折れ線の重なり度合いの比較により、その曲がりを数学的幾何学的に演算、評価するものである（例えば、特許文献１参照。）。 Conventionally, for example, there is a concrete electric pole as a long cylindrical object. The electric pole is built on the ground and electric wires are erected, but a device for measuring the degree of bending of the electric pole from the ground in a non-destructive manner has been developed for the purpose of preventing the danger of collapsing due to strength reduction due to cracks and fatigue. Yes. This device captures the entire image of the utility pole, obtains the utility pole outline by image processing, and adds the sum of the density values of the coordinates through which these lines pass through the assumed straight line and the assumed broken line with the highest degree of overlap. The bending is calculated and evaluated mathematically and geometrically by comparing the degree of overlap between the assumed straight line and the assumed broken line (see, for example, Patent Document 1).

一方、一度使用され撤去後に保管されていたコンクリート製の電柱を再利用のため使用する場合がある。この場合も、その電柱の先端側の湾曲度を判定し許容範囲内にあるものが甲品として使用される。例えば、コンクリート製の電柱の元口（基端）の中心軸線と末口（先端）の中心軸線とのずれが５００ｍｍ未満であれば、甲品として処理され使用されるが、５００ｍｍ以上であると乙品として処理され再使用できないようにしている。この判定は、熟練した作業者が水平に横臥される前記電柱を目視により観察し、経験と感に基づき再使用できるか否かその湾曲度を判定していた。 On the other hand, there are cases where a concrete utility pole that has been used once and stored after removal is used for reuse. Also in this case, the degree of curvature on the tip end side of the utility pole is determined and the one within the allowable range is used as the article. For example, if the deviation between the central axis of the base (base end) of the concrete utility pole and the central axis of the end (tip) is less than 500 mm, it is treated and used as an article, but it is 500 mm or more. It is processed as a product and cannot be reused. In this determination, a skilled worker visually observes the utility pole that is lying horizontally, and determines whether or not it can be reused based on experience and feeling.

特開平６−９４４４２号公報（第２−４頁、図１）JP-A-6-94442 (page 2-4, FIG. 1)

しかしながら、前記水平に横臥されるコンクリート製の電柱を目視により観察しその湾曲度を判断することは、主観的であってしかも個人差があることから判定に正確性を欠き好ましいことではない。一方、前記特許文献１に記載された電柱の湾曲程度を測定する装置を用い測定して判定することも考えられるが、この場合は、その装置が大型化し設置作業も大掛かりとなり、しかも、電柱の全体像を撮像したり電柱輪郭線を求めたり演算を行うなど専門的な知識を必要とし誰しも容易に扱えないばかりか、装置全体の製作コストも高いといった課題がある。 However, it is not preferable to visually observe the concrete utility poles lying horizontally and judge the degree of curvature because it is subjective and has individual differences. On the other hand, it is conceivable to determine by measuring using the device for measuring the degree of bending of the utility pole described in Patent Document 1, but in this case, the device becomes larger and the installation work becomes larger. There is a problem that not only is it easy for anyone to handle, but also the manufacturing cost of the entire device is high, which requires specialized knowledge such as capturing the whole image, obtaining the utility pole outline, and performing calculations.

そこで、本発明は上記課題を解決すべくなされたもので、簡単な構成であって誰しも容易に扱えしかも製作コストも低廉になし得る円柱長尺物の湾曲判定具を提供することを目的とするものである。 Accordingly, the present invention has been made to solve the above-described problems, and an object thereof is to provide a curvature judgment tool for a long cylindrical object that has a simple configuration, can be easily handled by anyone, and can be manufactured at low cost. It is what.

かかる目的を達成するため本発明の円柱長尺物の湾曲判定具は、水平に横臥される電柱等の円柱長尺物の基端側の外周面に配置し該円柱長尺物の先端側の湾曲度を判定する円柱長尺物の湾曲判定具であって芯出し器と判定器とから構成され、前記芯出し器は第一中央指示線を設けた透明な第一透視板を有し、前記芯出し器を前記円柱長尺物の外周面に設置したとき前記第一透視板は前記円柱長尺物の中心軸線に対して直角をなしかつ前記第一中央指示線はその延長線が常に該円柱長尺物の中心軸線と交差し、前記判定器は第二中央指示線を設けた透明な第二透視板と該第二透視板と平行をなすと共に第三中央指示線を設けた透明な第三透視板とを有し、前記判定器を前記円柱長尺物の外周面に設置したとき前記第二透視板及び第三透視板は前記円柱長尺物の中心軸線に対し直角をなしかつ前記第二中央指示線及び第三中央指示線はそれら延長線が常に該円柱長尺物の中心軸線と交差し、前記第三透視板に前記第三中央指示線と平行をなしかつ該第三中央指示線から所定の距離離して前記円柱長尺物の先端側の湾曲度を判定し得る判定ラインを設け、前記電柱の基端側の外周面に芯出し器がその先端側に位置するようにして芯出し器と判定器とを所定の距離離して配置し、前記判定ライン３０を目安として円柱長尺物Ｋの湾曲度を判定し得るようにしたことを特徴とする。 In order to achieve the above object, the curvature judgment tool for a long cylindrical object of the present invention is disposed on the outer peripheral surface of the proximal end side of a long cylindrical object such as a utility pole horizontally lying on the distal end side of the long cylindrical object. It is a cylindrical long object curve determining tool for determining the degree of curvature, and is composed of a centering device and a determining device, and the centering device has a transparent first see-through plate provided with a first center indicator line, When the centering device is installed on the outer peripheral surface of the cylindrical elongated object, the first see-through plate is perpendicular to the central axis of the cylindrical elongated object, and the first central indicator line is always an extension line thereof. Crossing the central axis of the cylindrical elongated object, the judging device is transparent with a second central indicator line and a transparent second perspective plate parallel to the second perspective plate and with a third central indicator line The second see-through plate and the third see-through plate are the front when the discriminator is installed on the outer circumferential surface of the long cylindrical object. The second center indicator line and the third center indicator line are perpendicular to the center axis of the long cylindrical object, and their extension lines always intersect the central axis of the cylindrical long object, and Provided with a determination line that is parallel to the third central indicating line and is separated from the third central indicating line by a predetermined distance so that the degree of curvature of the long end of the cylindrical object can be determined, and the outer periphery on the proximal end side of the utility pole The centering device and the determining device are arranged at a predetermined distance so that the centering device is positioned on the tip side of the surface, and the curvature of the long cylindrical object K can be determined using the determination line 30 as a guide. It is characterized by doing so.

この場合、前記第三透視板の一側面に両側縁が前記第三中央指示線と平行をなしかつその一側面に沿って該第三中央指示線と直交する方向へ自在に移動する湾曲判定バーを設け、前記湾曲判定バーの両側縁を前記円柱長尺物の先端側の湾曲度を判定し得る判定ラインとすることが好ましい。 In this case, a curvature determination bar in which both side edges are parallel to the third central indicator line on one side surface of the third see-through plate and freely move along the one side surface in a direction perpendicular to the third central indicator line. It is preferable that both side edges of the curve determination bar are used as determination lines that can determine the degree of curvature on the distal end side of the long cylindrical object.

本発明に係る円柱長尺物の湾曲判定具は、芯出し器と判定器とからなり、水平に横臥される円柱長尺物の外周面であってその基端側の所定の位置に芯出し器と判定器とを配置し、判定器の第二・第三透視板および芯出し器の第一透視板を介して先端側を見ることによってその円柱長尺物の先端側の湾曲度を判定すれば良く、簡単な構成であって誰しも容易に扱えしかも製作コストも低廉になし得るという効果がある。 A long cylindrical object curvature determination tool according to the present invention comprises a centering device and a determining device, and is centered at a predetermined position on the base end side of the outer peripheral surface of the long cylindrical material lying horizontally. And determine the degree of curvature of the long cylindrical object by observing the tip through the second and third see-through plates of the determiner and the first see-through plate of the centering device. This has an effect that it can be easily handled by anyone with a simple configuration and can be manufactured at low cost.

また、第三透視板の一側面に両側縁が前記第三中央指示線と平行をなしかつその一側面に沿って該第三中央指示線と直交する方向へ自在に移動する湾曲判定バーを設け、前記湾曲判定バーの両側縁を前記円柱長尺物の先端側の湾曲度を判定し得る判定ラインとすれば、湾曲判定バーを第三中央指示線と直交する方向へ自在に移動させることにより、種々の異なるサイズの電柱にも容易に判定ラインの設定ができ、使い勝手が良いという効果が有る。 In addition, a curvature determination bar is provided on one side surface of the third see-through plate so that both side edges are parallel to the third central indicating line and move freely along the one side surface in a direction perpendicular to the third central indicating line. If both side edges of the curve determination bar are determined lines that can determine the degree of curvature of the long end of the cylindrical elongated object, the curve determination bar can be moved freely in a direction perpendicular to the third central indicator line. In addition, determination lines can be easily set even on various types of utility poles, and there is an effect that the usability is good.

以下、本発明に係る円柱長尺物の湾曲判定具の実施の形態を図面に基づき説明する。円柱長尺物には、例えばコンクリート製の電柱、木製の電柱、コンクリート製の支柱、木製の支柱が有り、いずれにも本発明は使用できるがコンクリート製の電柱に使用される場合について説明する。図１は本発明に係る芯出し器の斜視図、図２は図１のＶ−Ｖ線断面図、図３は本発明に係る判定器の斜視図、図４は図３のＷ−Ｗ線断面図、図５は図３のＸ−Ｘ線断面図である。本発明に係る円柱長尺物の湾曲判定具Ａは、互いに独立した芯出し器１０と判定器２０とから構成されている。これら芯出し器１０と判定器２０とはほぼ同じような形状からなる。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a cylindrical elongated object curve determination tool according to the present invention will be described below with reference to the drawings. The long cylindrical object includes, for example, a concrete utility pole, a wooden utility pole, a concrete support pole, and a wooden support pole. The present invention can be used for any of them, but a case where it is used for a concrete utility pole will be described. 1 is a perspective view of a centering device according to the present invention, FIG. 2 is a sectional view taken along line VV in FIG. 1, FIG. 3 is a perspective view of a judging device according to the present invention, and FIG. FIG. 5 is a sectional view taken along line XX of FIG. The cylindrical long object curvature determination tool A according to the present invention includes a centering device 10 and a determination device 20 which are independent of each other. The centering device 10 and the determining device 20 have substantially the same shape.

そこで、まず芯出し器１０について説明する。該芯出し器１０は判定器２０の精度を高めるために用いられるものであり、透明な第一透視板１１と該第一透視板１１を保持する台座部１２とからなる。第一透視板１１は、透明な硬質の合成樹脂板からなり一辺が例えば１５０ｍｍの正方形状に成形される。台座部１２は、金属板を折曲して成形され、長方形状の台板１２ａと該台板１２ａの両端から同じ長さで直角に下方へ折れ曲る長方形状の一対の脚板１２ｂ，１２ｂを有する。そして、第一透視板１１を台板１２の上面中央に両脚板１２ｂ，１２ｂと直角となる方向に沿って平行に配置し、その下端縁部を台板１２ａに固着される断面Ｌ型の取付板１３の起立板１３ａの一側面に当接し、所定個所をネジ１４によってネジ止めすることにより台座部１２の上面に第一透視板１１が立設され一体に組み付けられる。汚れたり破損した場合は、ネジ１４を外して第一透視板１１が交換可能である。 First, the centering device 10 will be described. The centering device 10 is used to increase the accuracy of the determination device 20 and includes a transparent first see-through plate 11 and a pedestal portion 12 that holds the first see-through plate 11. The first see-through plate 11 is made of a transparent hard synthetic resin plate and is formed into a square shape having a side of, for example, 150 mm. The pedestal portion 12 is formed by bending a metal plate, and includes a rectangular base plate 12a and a pair of rectangular leg plates 12b and 12b that are bent at a right angle downward from both ends of the base plate 12a. Have. The first see-through plate 11 is arranged in the center of the upper surface of the base plate 12 along the direction perpendicular to both the leg plates 12b and 12b, and the lower edge of the first see-through plate 11 is fixed to the base plate 12a. The first see-through plate 11 is erected on the upper surface of the pedestal portion 12 and integrally assembled by abutting against one side surface of the upright plate 13a of the plate 13 and screwing a predetermined portion with a screw 14. When it gets dirty or damaged, the first see-through plate 11 can be replaced by removing the screw 14.

前記第一透視板１１には、その一側面の中央に台板１２ａと直交する第一中央指示線１６が表示される。この場合、該第一中央指示線１６は黄色である。そして、図９に示すように使用済みのコンクリート製の電柱Ｋの外周面ｋに、その両脚板１２ｂ，１２ｂが共に周方向に位置するようにして芯出し器１０を配置したとき、両脚板１２ｂ，１２ｂの下端縁１２ｃ全体が前記外周面ｋに接し、前記第一中央指示線１６の延長線が前記電柱Ｋの中心軸線Ｃと交差するようになっている。 On the first see-through plate 11, a first center indicating line 16 orthogonal to the base plate 12a is displayed at the center of one side surface. In this case, the first central indicator line 16 is yellow. Then, when the centering device 10 is disposed on the outer peripheral surface k of the used concrete utility pole K as shown in FIG. 9 so that both the leg plates 12b, 12b are positioned in the circumferential direction, the both leg plates 12b , 12b is in contact with the outer peripheral surface k, and the extended line of the first central indicator line 16 intersects the central axis C of the utility pole K.

また、第一透視板１１の一側であって台板１２ａの上面に、水平器１５が固着される。この水平器１５は、支持枠１５ａの上部に密閉状の透明な測定管１５ｂが取着されている。該測定管１５ｂ内には、気泡が残るようにして所定量の液体が詰められている。前記第一透視板１１の上端両角部には、両角部の無用な破損を防止するためゴム製のカバー部材１７が被着されている。芯出し器１０を水平面上に置いたとき、前記水平器１５における測定管１５ｂ内の気泡はその中心に位置する。 Further, a level 15 is fixed to one side of the first see-through plate 11 and to the upper surface of the base plate 12a. The leveler 15 has a sealed transparent measuring tube 15b attached to the upper part of a support frame 15a. The measuring tube 15b is filled with a predetermined amount of liquid so that bubbles remain. Rubber cover members 17 are attached to the upper corner portions of the first see-through plate 11 in order to prevent unnecessary breakage of both corner portions. When the centering device 10 is placed on a horizontal plane, the bubble in the measuring tube 15b in the leveling device 15 is located at the center thereof.

次に、判定器２０について説明する。判定器２０は、前記電柱Ｋの先端側の湾曲度を判定するためのものであり、透明な第二透視板２１と同じく透明な第三透視板２２とこれら第二透視板２１と第三透視板２２を保持する台座部２３とからなる。第二透視板２１と第三透視板２２とは、透明な硬質の合成樹脂板からなり例えば縦１７５、横１５０ｍｍの長方形状に成形される。台座部２３は、金属板を折曲して成形され、長方形状の台板２３ａと該台板２３ａの両端から同じ長さで直角に下方へ折れ曲る長方形状の一対の脚板２３ｂ，２３ｂを有する。第二透視板２１及び第三透視板２２は、台板２３ａの上面両側に両脚板２３ｂ，２３ｂと直角をなす方向に沿って平行にかつ所定の間隔離して配置する。これにより、第二透視板２１及び第三透視板２２が必然的に平行に配置される。そして、それら下端縁部を台板２３ａに固着される断面Ｌ型の取付板２４の起立板２４ａの一側面に当接し、所定個所をネジ１４によりネジ止めすることにより、台座部２３の上面に第二透視板２１及び三透視板２２が立設され一体に組み付けられる。この場合も、第二・第三透視板２１，２２はネジ１４を外すことにより交換可能である。 Next, the determiner 20 will be described. The determination device 20 is for determining the degree of curvature of the front end side of the utility pole K, and is similar to the transparent second see-through plate 21, the transparent third see-through plate 22, the second see-through plate 21, and the third see-through plate. The pedestal 23 holds the plate 22. The second see-through plate 21 and the third see-through plate 22 are made of a transparent hard synthetic resin plate and are formed into a rectangular shape having a length of 175 and a width of 150 mm, for example. The pedestal portion 23 is formed by bending a metal plate, and includes a rectangular base plate 23a and a pair of rectangular leg plates 23b, 23b that are bent at a right angle downward from both ends of the base plate 23a. Have. The second see-through plate 21 and the third see-through plate 22 are arranged on both sides of the upper surface of the base plate 23a in parallel along a direction perpendicular to both the leg plates 23b, 23b and separated by a predetermined distance. Accordingly, the second see-through plate 21 and the third see-through plate 22 are necessarily arranged in parallel. Then, these lower end edges are brought into contact with one side surface of the upright plate 24a of the mounting plate 24 having an L-shaped cross section fixed to the base plate 23a, and a predetermined portion is screwed with the screw 14 to thereby fix the upper surface of the base portion 23. The second see-through plate 21 and the three see-through plate 22 are erected and assembled together. Also in this case, the second and third see-through plates 21 and 22 can be replaced by removing the screws 14.

前記第二透視板２１には、その一側面の中央に台板２３ａと直交する第二中央指示線２５が表示される。この場合、該第二中央指示線２５は黒色である。また、前記第三透視板２２にも、その一側面の中央に台板２３ａと直交しかつ正面から第二透視板２１を見て第二中央指示線２５と一直線上に重なる第三中央指示線２６が表示される。該第三中央指示線２６も黒色である。 On the second see-through plate 21, a second center indicating line 25 orthogonal to the base plate 23a is displayed at the center of one side surface. In this case, the second central indicating line 25 is black. The third see-through plate 22 also has a third center indicator line that is perpendicular to the base plate 23a at the center of one side surface and overlaps with the second center indicator line 25 when viewed from the front. 26 is displayed. The third central indicator line 26 is also black.

また、第三透視板２２の一側面であって第三中央指示線２６の両側に、それぞれ水平に横臥されるコンクリート製の電柱Ｋの先端側の湾曲度を判定する際、その湾曲度が許容範囲内にあるか否かの目安となる複数本の判定ライン３０が第三中央指示線２６から所定の距離離して表示されている。これら判定ライン３０は、判定するコンクリート製の電柱Ｋのサイズによって前記所定の距離が異なる。この場合、４種類のサイズの電柱Ｋが判定できるように、それら電柱Ｋに適合させ第三中央指示線２６の両側に左右対称に位置させて４種類の判定ライン３０ａ〜３０ｄが表示されている。これら４組の判定ライン３０ａ〜３０ｄは互いに異なる色に着色され、誤認がないようにしてある。よって、例えば、常に一定のサイズのコンクリート製の電柱Ｋを判定するには、前記第三透視板２２の一側面であって第三中央指示線２６の両側に、それぞれ所定の距離離して一本の判定ライン３０を表示するようにしても良い。また、判定ライン３０は、二本または三本表示するようにしても良い。 Further, when determining the degree of curvature of the tip side of the concrete utility pole K horizontally lying on one side of the third see-through plate 22 and on both sides of the third central indicator line 26, the degree of curvature is allowed. A plurality of determination lines 30 that serve as a guide whether or not they are within the range are displayed at a predetermined distance from the third central indicating line 26. The predetermined distances of the determination lines 30 differ depending on the size of the concrete utility pole K to be determined. In this case, four types of determination lines 30a to 30d are displayed so as to be able to determine four types of utility poles K and to be symmetrically positioned on both sides of the third central indicating line 26 so as to match the utility poles K. . These four sets of determination lines 30a to 30d are colored in mutually different colors so as not to be misidentified. Therefore, for example, in order to always determine a concrete utility pole K of a certain size, one piece is provided at a predetermined distance on one side of the third see-through plate 22 and on both sides of the third central indicator line 26. The determination line 30 may be displayed. Further, two or three determination lines 30 may be displayed.

図９に示すように前記電柱Ｋの外周面ｋに、その両脚板２３ｂ，２３ｂが共に周方向に位置するようにして判定器２０を配置したとき、両脚板２３ｂ，２３ｂの下端縁２３ｃ，２３ｃ全体が前記外周面ｋに接し、前記第二中央指示線２５及び第三中央指示線２６の延長線が共に前記電柱Ｋの中心軸線Ｃと交差するようになっている。 As shown in FIG. 9, when the determiner 20 is disposed on the outer peripheral surface k of the utility pole K so that both the leg plates 23b and 23b are positioned in the circumferential direction, the lower end edges 23c and 23c of the both leg plates 23b and 23b. The whole is in contact with the outer peripheral surface k, and both the extension lines of the second central indicator line 25 and the third central indicator line 26 intersect the central axis C of the utility pole K.

また、第二透視板２１と第三透視板２２の間であって台板２３ａの上面に、前記同様に水平器１５が固着される。この水平器１５も、支持枠１５ａの上部に密閉状の透明な測定管１５ｂが取着されている。該測定管１５ｂ内には気泡が残るようにして所定量の液体が詰められている。また、前記第二・三透視板２１，２２の上端両角部にも、両角部の無用な破損を防止するためゴム製のカバー部材１７が被着されている。 Further, the level 15 is fixed between the second see-through plate 21 and the third see-through plate 22 and on the upper surface of the base plate 23a in the same manner as described above. This leveler 15 also has a sealed transparent measuring tube 15b attached to the upper portion of the support frame 15a. A predetermined amount of liquid is packed in the measuring tube 15b so that bubbles remain. Also, rubber cover members 17 are attached to both upper corners of the second and third see-through plates 21 and 22 in order to prevent unnecessary breakage of both corners.

通常、撤去後のコンクリート製の電柱Ｋを再利用する場合、電柱Ｋの先端（末口）ｓ側が湾曲することによりその電柱Ｋにおける中心軸線Ｃに対する末口ｓの中心軸線Ｃ１のずれが５００ｍｍ未満であると、その電柱Ｋは再使用可能すなわち甲品扱いとされる。一方、電柱Ｋの中心軸線Ｃに対する末口ｓの中心点Ｃ１のずれが５００ｍｍ以上であると、その電柱Ｋは再使用不可能すなわち乙品扱いとされる。また、電柱Ｋは一般に１０ｍ〜１６ｍの幅で種々のサイズのものがあるが、前記判定の基準となる値５００ｍｍは、どの長さ寸法の電柱Ｋにあっても一定としている。 Usually, when the concrete utility pole K after removal is reused, the tip (end) s side of the utility pole K is curved, so that the deviation of the center axis C1 of the end s from the center axis C in the utility pole K is less than 500 mm. If so, the utility pole K can be reused, that is, treated as an armor. On the other hand, when the deviation of the center point C1 of the terminal s with respect to the central axis C of the utility pole K is 500 mm or more, the utility pole K is not reusable, that is, treated as an article. In addition, the utility pole K generally has a width of 10 to 16 m and various sizes, but the value 500 mm as a reference for the determination is constant regardless of the length of the utility pole K.

そこで、判定器２０は電柱Ｋの基端（元口）ｍから末口ｓ側へ１００ｃｍの距離離れた位置に第三透視板２２が元口ｍ側に位置するようにして配置される。図８に示すように電柱Ｋの長さＨ、判定の基準となる値５００ｍｍ、元口ｍから判定器２０までの距離Ｌ、判定器２０における判定値（第三中央指示線２６（電柱の中心軸線Ｃ）から判定ライン３０までの距離）Ｄの関係は、三角形の相似関係になる。これを数式で表すと、Ｈ：Ｌ＝５００：Ｄになる。Ｈは１０〜１６ｍ、Ｌは１００ｃｍである。但し、実際に判定する場合、電柱Ｋの末口ｓの中心点Ｃ１は正確に測定できないため、電柱Ｋの末口ｓの外周縁ｓ１で判定するようにする。よって、電柱Ｋの末口ｍの直径が１９０ｍｍであることから、その半径９５ｍｍを前記判定の基準となる値５００ｍｍに加え、前記数式をＨ：Ｌ＝５９５：Ｄに修正する。 Therefore, the determiner 20 is arranged such that the third see-through plate 22 is located on the main port m side at a distance of 100 cm from the base end (original port) m of the utility pole K to the end s side. As shown in FIG. 8, the length H of the utility pole K, the reference value 500 mm, the distance L from the main entrance m to the determiner 20, the determination value in the determiner 20 (the third central indicator line 26 (the center of the utility pole) The relationship of the distance D) from the axis C) to the determination line 30 is a triangular similarity. When this is expressed by a mathematical formula, H: L = 500: D. H is 10 to 16 m, and L is 100 cm. However, in the actual determination, since the center point C1 of the end s of the utility pole K cannot be measured accurately, the determination is made based on the outer peripheral edge s1 of the end s of the utility pole K. Therefore, since the diameter of the end m of the utility pole K is 190 mm, the radius 95 mm is added to the value 500 mm as a reference for the determination, and the above formula is corrected to H: L = 595: D.

前記修正した数式に基づいて、電柱Ｋの長さが１０、１２、１４、１６ｍの場合の各中心軸線Ｃ（第三中央指示線２６）から各判定ライン３０ａ〜３０ｄまでの距離Ｄを計算すると、次の表１に示されるようになる。例えば長さＨが１０ｍの電柱Ｋにあっては、末口ｓの中心点Ｃ１が電柱Ｋの中心軸線Ｃに対して５００ｍｍずれているとき、電柱Ｋの中心軸線Ｃから判定ライン３０ａまでの距離Ｄが６３．５ｍｍとなる。そこで、電柱Ｋの末口ｓの外周縁ｓ１が前記判定ライン３０ａを越えずにそれ以内に収まっているときは再使用可能な甲品扱いされる。一方、電柱Ｋの末口ｓの外周縁ｓ１が前記判定ライン３０ａを越えているときは再使用不可能な乙品扱いされることになる。 Based on the corrected mathematical formula, the distance D from each central axis C (third central indicating line 26) to each determination line 30a to 30d when the length of the utility pole K is 10, 12, 14, 16m is calculated. As shown in Table 1 below. For example, in the utility pole K having a length H of 10 m, when the center point C1 of the terminal s is shifted by 500 mm from the center axis C of the utility pole K, the distance from the center axis C of the utility pole K to the determination line 30a. D is 63.5 mm. Therefore, when the outer peripheral edge s1 of the terminal s of the utility pole K is within the determination line 30a without exceeding the determination line 30a, it is treated as a reusable armor. On the other hand, when the outer peripheral edge s1 of the terminal s of the utility pole K exceeds the determination line 30a, it is treated as a non-reusable product.

本発明に係る円柱長尺物の湾曲判定具Ａは上記構成からなり、次にその使用方法について説明する。コンクリート製の電柱Ｋの長さＨは１６ｍとする。まず、ほぼ水平に横臥される使用済みのコンクリート製の電柱Ｋを見て、その末口ｓ側がどの程度湾曲しているかその湾曲度を目視により判断し、その湾曲する方向をほぼ地面と平行にする。このとき、前記電柱Ｋを元口ｍから末口ｓ側を見た場合、その末口ｓ側は左右いずれかに湾曲していることになる。この場合、図７に示すように末口ｓ側が向かって右側へ湾曲しているものとする。 The cylindrical long object curvature determination tool A according to the present invention has the above-described configuration, and a method for using the same will now be described. The length H of the concrete utility pole K is 16 m. First, look at a used concrete utility pole K lying on a horizontal surface, visually determine how much the end s side is curved, and determine the degree of curvature visually, and the direction of curvature is substantially parallel to the ground. To do. At this time, when the utility pole K is viewed from the source port m to the end s side, the end s side is curved to the left or right. In this case, it is assumed that the end s side is curved rightward as shown in FIG.

次に、図６に示すようにコンクリート製の電柱Ｋの外周面ｋであって、元口ｍから末口ｓに向かって１００ｃｍの位置に第三透視板２２が元口ｍ側に位置するようにして判定器２０を配置し、前記電柱Ｋの外周方向に沿って摺動させ、水平器１５の気泡が測定管１５ｂの中央に来るように調整する。同様に、元口ｍから末口ｓに向かって２００ｃｍの位置に芯出し器１０を配置し、前記電柱Ｋの外周方向に沿って摺動させ、水平器１５の気泡が測定管１５ｂの中央に来るように調整する。これら判定器２０と芯出し器１０は、いずれも両脚板１２ｂ，１２ｂ、２３ｂ，２３ｂが電柱Ｋの外周面ｋの周方向に沿って位置し、それら下端縁１２ｃ，１２ｃ，２３ｃ，２３ｃは全体が外周面ｋに接することになる。 Next, as shown in FIG. 6, it is the outer peripheral surface k of the concrete utility pole K, and the 3rd seeing board 22 is located in the position of 100 cm toward the end s from the main entrance m to the end m side. Then, the determination device 20 is arranged and slid along the outer peripheral direction of the utility pole K, and adjusted so that the bubble of the level device 15 comes to the center of the measurement tube 15b. Similarly, the centering device 10 is disposed at a position of 200 cm from the source port m toward the end port s, and is slid along the outer peripheral direction of the utility pole K. The bubble of the leveling device 15 is in the center of the measuring tube 15b. Adjust to come. In each of the determination device 20 and the centering device 10, both leg plates 12b, 12b, 23b, and 23b are positioned along the circumferential direction of the outer peripheral surface k of the utility pole K, and the lower end edges 12c, 12c, 23c, and 23c are entirely formed. Is in contact with the outer peripheral surface k.

この状態では、第一透視板１１、第二透視板２１及び第三透視板２２がいずれも平行をなし、第一中央指示線１６、第二中央指示線２５及び第三中央指示線２６の延長線はいずれもコンクリート製電柱Ｋの中心軸線Ｃと交差することになる。これは、芯出し器１０または判定器２０を外周面ｋの周囲に沿って摺動させた場合、いずれの位置でも同じことが言える。この状態で元口ｍから判定器２０の第三透視板２２、第二透視板２１及び芯出し器１０の第一透視板１１を覗いたとき、第一中央指示線１６と第二・第三中央指示線２５，２６が一直線上に重なっていれば芯出し器１０及び判定器２０が正規の位置に配置できたことになる。一方、前記各第一・第二・第三中央指示線１６，２５，２６が一直線上に重ならないときは、判定器２０が前記電柱Ｋの中心軸線Ｃに対し捩れた位置に配置されていることになるため、第二・第三中央指示線２５，２６が重なるように判定器２０を左右どちらかへ回動させて位置調整をする。 In this state, the first see-through plate 11, the second see-through plate 21, and the third see-through plate 22 are all parallel, and the first center indicator line 16, the second center indicator line 25, and the third center indicator line 26 are extended. All the lines intersect with the central axis C of the concrete utility pole K. The same can be said at any position when the centering device 10 or the determining device 20 is slid along the periphery of the outer peripheral surface k. In this state, when looking through the third see-through plate 22, the second see-through plate 21 of the determiner 20 and the first see-through plate 11 of the centering device 10 from the source port m, the first center indicating line 16 and the second / third If the center indicating lines 25 and 26 overlap each other, the centering device 10 and the determining device 20 can be arranged at the normal positions. On the other hand, when the first, second, and third central indicating lines 16, 25, and 26 do not overlap with each other, the determiner 20 is disposed at a position twisted with respect to the central axis C of the utility pole K. Therefore, the position is adjusted by rotating the determination device 20 left or right so that the second and third center indicating lines 25 and 26 overlap.

そして、図７に示すように元口ｍから覗いて二本の第二・第三中央指示線２５，２６と第一中央指示線１６の計三本が一直線状に重なるように視線を移動させる。この状態で視線が動かないように注意しながら電柱Ｋの末口ｓの外周縁ｓ１が前記判定ライン３０ｄの内側（左側）または外側（右側）にあるかどうかを判定する。そこで、図７実線に示すように末口ｓの外周端ｓ１が一番内側の判定ライン３０ｄの内側（左側）にあるときは、湾曲度が許容範囲内にあることになり、甲品とされ再使用が可能であると判断される。一方、図７鎖線に示すように末口ｓの外周縁ｓ１が判定ライン３０ｄの外側（右側）にあるときは、湾曲度が許容範囲外にあることになり、乙品とされ再使用が不可能であると判断される。他のサイズの電柱Ｋについても同様にして判定できる。 Then, as shown in FIG. 7, the line of sight is moved so that a total of three of the two second and third central indicating lines 25 and 26 and the first central indicating line 16 overlap in a straight line. . In this state, it is determined whether or not the outer peripheral edge s1 of the terminal s of the utility pole K is inside (left side) or outside (right side) of the determination line 30d while taking care not to move the line of sight. Therefore, as shown by the solid line in FIG. 7, when the outer peripheral edge s1 of the terminal s is inside (on the left side) of the innermost determination line 30d, the degree of curvature is within an allowable range, and is regarded as an article. It is determined that it can be reused. On the other hand, when the outer peripheral edge s1 of the terminal s is outside the determination line 30d (right side) as shown in FIG. Judged to be possible. The determination can be made in the same manner for other sizes of utility poles K.

このように、本発明に係る円柱長尺物の湾曲判定具Ａは、芯出し器１０と判定器２０とからなり、水平に横臥されるコンクリート製の電柱Ｋの外周面ｋであってその元口ｍ側に芯出し器１０と判定器２０とを所定の距離離して配置し、判定器２０の第二・第三透視板２１，２２および芯出し器１０の第一透視板１１を介して末口ｓ側を見ることによってその電柱Ｋの湾曲度を判定すれば良く、簡単な構成であって誰しも容易に扱えしかも製作コストも低廉になし得る。 As described above, the curvature determination tool A for a long cylindrical object according to the present invention includes the centering device 10 and the determination device 20, and is an outer peripheral surface k of a concrete utility pole K that is horizontally laid, and its origin. The centering device 10 and the determining device 20 are arranged at a predetermined distance on the mouth m side, and the second and third seeing plates 21 and 22 of the determining device 20 and the first seeing plate 11 of the centering device 10 are arranged. It is only necessary to determine the degree of curvature of the utility pole K by looking at the end s side, and it can be easily handled by anyone with a simple configuration and the manufacturing cost can be reduced.

図１０乃至図１６は他の実施の形態の係る円柱長尺物の湾曲判定具を示すものである。この場合、芯出し器は本実施の形態と同じものが使用され、判定器にあっては本実施の形態と基本的な構成が同一なので、いずれも同一部位は同一番号を附すことにより詳しい説明は省略する。図１０は他の実施の形態に係る判定器の斜視図、図１１は図１０のＹ−Ｙ線断面図、図１２は図１０のＺ−Ｚ線断面図である。他の実施の形態に係る円柱長尺物の湾曲判定具Ａ１も、互いに独立した芯出し器１０と判定器５０とから構成される。これら芯出し器１０と判定器５０とはほぼ同じような形状からなる。 10 to 16 show a columnar elongate curvature determination tool according to another embodiment. In this case, the same centering device as that of the present embodiment is used, and the basic structure of the determination device is the same as that of the present embodiment. Description is omitted. 10 is a perspective view of a determination device according to another embodiment, FIG. 11 is a sectional view taken along line YY of FIG. 10, and FIG. 12 is a sectional view taken along line ZZ of FIG. The cylindrical long object curvature determination tool A1 according to another embodiment is also composed of a centering device 10 and a determination device 50 which are independent from each other. The centering device 10 and the determining device 50 have substantially the same shape.

他の実施の形態に係る判定器５０について説明する。判定器５０は、前記電柱Ｋの湾曲度を判定するためのものであり、透明な第二透視板２１と同じく透明な第三透視板２２とこれら第二透視板２１と第三透視板２２を保持する台座部２３とからなる。第二透視板２１と第三透視板２２とは、透明な硬質の合成樹脂板からなり例えば縦１７５、横１５０ｍｍの長方形状に成形される。台座部２３は、金属板を折曲して成形され、長方形状の台板２３ａと該台板２３ａの両端から同じ長さで直角に下方へ折れ曲る長方形状の一対の脚板２３ｂ，２３ｂを有する。第二透視板２１及び第三透視板２２は、台板２３ａの上面両側に両脚板２３ｂ，２３ｂと直角をなす方向に沿って平行にかつ所定の間隔離して配置する。これにより、第二透視板２１及び第三透視板２２が必然的に平行に配置される。そして、それら下端縁部を台板２３ａに固着される断面Ｌ型の取付板２４の起立板２４ａの一側面に当接し、所定個所をネジ１４によりネジ止めすることにより、台座部２３の上面に第二透視板２１及び三透視板２２が立設され一体に組み付けられる。この場合も、第二・第三透視板２１，２２はネジ１４を外すことにより交換可能である。 A determiner 50 according to another embodiment will be described. The determination unit 50 is for determining the degree of curvature of the utility pole K. The transparent third transparent plate 22, the second transparent plate 21 and the third transparent plate 22 are the same as the transparent second transparent plate 21. It comprises a pedestal portion 23 to be held. The second see-through plate 21 and the third see-through plate 22 are made of a transparent hard synthetic resin plate and are formed into a rectangular shape having a length of 175 and a width of 150 mm, for example. The pedestal portion 23 is formed by bending a metal plate, and includes a rectangular base plate 23a and a pair of rectangular leg plates 23b, 23b that are bent at a right angle downward from both ends of the base plate 23a. Have. The second see-through plate 21 and the third see-through plate 22 are arranged on both sides of the upper surface of the base plate 23a in parallel along a direction perpendicular to both the leg plates 23b, 23b and separated by a predetermined distance. Accordingly, the second see-through plate 21 and the third see-through plate 22 are necessarily arranged in parallel. Then, these lower end edges are brought into contact with one side surface of the upright plate 24a of the mounting plate 24 having an L-shaped cross section fixed to the base plate 23a, and a predetermined portion is screwed with the screw 14 to thereby fix the upper surface of the base portion 23. The second see-through plate 21 and the three see-through plate 22 are erected and assembled together. Also in this case, the second and third see-through plates 21 and 22 can be replaced by removing the screws 14.

前記第二透視板２１には、その一側面の中央に台板２３ａと直交する第二中央指示線２５が表示される。この場合、該第二中央指示線２５は黒色である。また、前記第三透視板２２にも、その一側面の中央に台板２３ａと直交しかつ第二透視板２１を正面から見て第二中央指示線２５と一直線上に重なる第三中央指示線２６が表示される。該第三中央指示線２６も黒色である。そして、図１６に示すように前記電柱Ｋの外周面ｋに、その両脚板２３ｂ，２３ｂが共に周方向に位置するようにして判定器２０を配置したとき、両脚板２３ｂ，２３ｂの下端縁２３ｃ全体が前記外周面ｋに接し、前記第二中央指示線２５及び第三中央指示線２６の延長線が共に前記電柱Ｋの中心軸線Ｃと交差するようになっている。 On the second see-through plate 21, a second center indicating line 25 orthogonal to the base plate 23a is displayed at the center of one side surface. In this case, the second central indicating line 25 is black. Further, the third seeing plate 22 also has a third center indicating line that is orthogonal to the base plate 23a at the center of one side surface and overlaps with the second center indicating line 25 when viewed from the front. 26 is displayed. The third central indicator line 26 is also black. As shown in FIG. 16, when the determination device 20 is arranged on the outer peripheral surface k of the utility pole K so that both the leg plates 23b, 23b are both positioned in the circumferential direction, the lower end edge 23c of the both leg plates 23b, 23b. The whole is in contact with the outer peripheral surface k, and both the extension lines of the second central indicator line 25 and the third central indicator line 26 intersect the central axis C of the utility pole K.

第三透視板２２の一側面には、中央に表示された第三中央指示線２６と直交するようにして上下一対の目盛り板２７，２７が配設される。各目盛り板２７は、第三中央指示線２６に「０」の目盛りが一致させてあり、その両側に「１０，２０，３０…７０ｍｍ」の目盛りがそれぞれ対称的に示されている。両目盛り板２７，２７間には湾曲判定バー２８が配置される。該湾曲判定バー２８は、幅約１０ｍｍ、長さ約１３０ｍｍの縦長長方形状の硬質合成樹脂製の判定基板２８ａからなる。そして、該判定基板２８ａの裏側の上下両端部に、前記各目盛り板２７が挿通される横溝２８ｂを備えた支持板部２８ｃが固着される。上側の支持板部２８ｃには、その上面に横溝２８ｂに達するネジ溝２９ａが貫設され、該ネジ溝２９ａに調整ネジ２９ｂが螺入されている。 On one side surface of the third see-through plate 22, a pair of upper and lower scale plates 27, 27 are disposed so as to be orthogonal to the third center indicating line 26 displayed at the center. Each scale plate 27 has a scale of “0” aligned with the third central indicating line 26, and scales of “10, 20, 30... 70 mm” are symmetrically shown on both sides thereof. A curvature determination bar 28 is disposed between the scale plates 27 and 27. The curve determination bar 28 includes a determination substrate 28a made of a hard synthetic resin having a vertically long rectangular shape having a width of about 10 mm and a length of about 130 mm. A support plate portion 28c having a lateral groove 28b through which each scale plate 27 is inserted is fixed to the upper and lower end portions on the back side of the determination substrate 28a. A screw groove 29a reaching the lateral groove 28b is formed on the upper surface of the upper support plate portion 28c, and an adjustment screw 29b is screwed into the screw groove 29a.

そこで、前記上下の横溝２８ｂ，２８ｂに両目盛り板２７，２７を挿通することにより、湾曲判定バー２８が両目盛り板２７，２７、すなわち、第三透視板２２の一側面に沿って左右に移動でき、また、調整ネジ２９ｂを締めることによりその位置で固定できるようになっている。この際、判定基板２８ａの両側縁が第三透視板２２の一側面に表示される判定ライン３０，３０となり、これら判定ライン３０，３０は常に第三中央指示線２６と平行となるように設定される。そして、目盛り板２７の「０」の目盛りすなわち第三中央指示線２６から判定ライン３０までの距離Ｄ、換言すると前記電柱Ｋの中心軸線Ｃから判定ライン３０までの距離Ｄ、が後記する各電柱Ｋの先端側の湾曲度の判定寸法（判定値）になる。 Therefore, by inserting the scale plates 27 and 27 through the upper and lower horizontal grooves 28b and 28b, the curve determination bar 28 moves to the left and right along the side surfaces of the scale plates 27 and 27, that is, the third perspective plate 22. It can be fixed at that position by tightening the adjusting screw 29b. At this time, both side edges of the determination board 28a become determination lines 30 and 30 displayed on one side surface of the third see-through plate 22, and these determination lines 30 and 30 are always set to be parallel to the third central indicating line 26. Is done. Then, the scale of “0” on the scale plate 27, that is, the distance D from the third central indicating line 26 to the determination line 30, in other words, the distance D from the central axis C of the power pole K to the determination line 30, will be described later. This is the determination dimension (determination value) of the degree of curvature on the tip side of K.

また、第二透視板２１と第三透視板２２の間であって台板２３ａの上面に、前記同様に水平器１５が固着される。この水平器１５も、支持枠１５ａの上部に密閉状の透明な測定管１５ｂが取着されている。該測定管１５ｂ内には気泡が残るようにして所定量の液体が詰められている。また、前記第二・三透視板２１，２２の上端両角部にも、両角部の無用な破損を防止するためゴム製のカバー部材１７が被着されている。 Further, the level 15 is fixed between the second see-through plate 21 and the third see-through plate 22 and on the upper surface of the base plate 23a in the same manner as described above. This leveler 15 also has a sealed transparent measuring tube 15b attached to the upper portion of the support frame 15a. A predetermined amount of liquid is packed in the measuring tube 15b so that bubbles remain. In addition, rubber cover members 17 are attached to both upper corners of the second and third see-through plates 21 and 22 in order to prevent unnecessary breakage of both corners.

そこで、判定器５０は電柱Ｋの基端（元口）ｍから末口ｓ側へ１００ｃｍの距離離れた位置に第三透視板２２が末口ｓ側に位置するようにして配置される。図１５に示すように電柱Ｋの長さＨ、判定の基準となる値５００ｍｍ、元口ｍから判定器２０までの距離Ｌ、判定器２０における判定値（第三中央指示線２６（電柱の中心軸線）から判定ライン３０までの距離）Ｄの関係は、三角形の相似関係になる。これを数式で表すと、Ｈ：Ｌ＝５００：Ｄになる。Ｈは１０〜１６ｍ、Ｌは１００ｃｍである。但し、実際に判定する場合、電柱Ｋの末口ｓの中心点Ｃ１は正確に測定できないため、電柱Ｋの末口ｓの外周縁ｓ１で判定するようにする。よって、電柱Ｋの末口ｍの直径が１９０ｍｍであることから、その半径９５ｍｍを前記判定の基準となる値５００ｍｍに加え、前記数式をＨ：Ｌ＝５９５：Ｄに修正する。 Therefore, the determination device 50 is arranged such that the third see-through plate 22 is located on the terminal s side at a position 100 cm away from the base end (former port) m of the utility pole K to the terminal s side. As shown in FIG. 15, the length H of the utility pole K, the reference value 500 mm, the distance L from the main entrance m to the determiner 20, the determination value in the determiner 20 (the third center indicator line 26 (the center of the utility pole) The relationship of the distance) D from the axis) to the determination line 30 is a triangular similarity. When this is expressed by a mathematical formula, H: L = 500: D. H is 10 to 16 m, and L is 100 cm. However, in the actual determination, since the center point C1 of the end s of the utility pole K cannot be measured accurately, the determination is made based on the outer peripheral edge s1 of the end s of the utility pole K. Therefore, since the diameter of the end m of the utility pole K is 190 mm, the radius 95 mm is added to the value 500 mm as a reference for the determination, and the above formula is corrected to H: L = 595: D.

前記修正した数式に基づいて、電柱Ｋの長さが１０、１２、１４、１６ｍの場合の各中心軸線Ｃから湾曲判定バー２８の判定ライン３０までの距離Ｄを計算すると、前記の表１に示されるようになる。例えば長さＨが１０ｍの電柱Ｋにあっては、末口ｓの中心点Ｃ１が電柱Ｋの中心軸線Ｃに対して５００ｍｍずれているとき、電柱Ｋの中心軸線Ｃから判定ラインまでの距離Ｄが６３．５ｍｍとなる。そこで、電柱Ｋの末口ｓの外周縁ｓ１が前記判定ライン３０を越えずにそれ以内に収まっているときは再使用可能な甲品扱いされる。一方、電柱Ｋの末口ｓの外周縁ｓ１が前記判定ライン３０を越えているときは再使用不可能な乙品扱いされることになる。 Based on the corrected mathematical formula, the distance D from each central axis C to the judgment line 30 of the curve judgment bar 28 when the length of the utility pole K is 10, 12, 14, 16 m is calculated as shown in Table 1 above. As shown. For example, in the utility pole K having a length H of 10 m, when the center point C1 of the terminal s is displaced by 500 mm from the center axis C of the utility pole K, the distance D from the center axis C of the utility pole K to the determination line Is 63.5 mm. Therefore, when the outer peripheral edge s1 of the terminal s of the utility pole K does not exceed the judgment line 30 and is within that range, it is treated as a reusable armor. On the other hand, when the outer peripheral edge s1 of the end s of the utility pole K exceeds the determination line 30, it is treated as a non-reusable product.

他の実施の形態に係る円柱長尺物の湾曲判定具Ａ１は上記構成からなり、次にその使用方法について説明する。コンクリート製の電柱Ｋの長さＨは１０ｍとする。まず、ほぼ水平に横臥される使用済みのコンクリート製の電柱Ｋを見て、その末口ｓ側がどの程度湾曲しているかその湾曲度を目視により判断し、その湾曲する方向をほぼ地面と平行にする。このとき、前記電柱Ｋを元口ｍから末口ｓ側を見た場合、その末口ｓ側は左右いずれかに湾曲していることになる。この場合、図１４に示すように末口ｓ側が向かって右側へ湾曲しているものとする。 The cylindrical long object curvature determination tool A1 according to another embodiment has the above-described configuration, and a method for using the same will now be described. The length H of the concrete utility pole K is 10 m. First, look at a used concrete utility pole K lying on a horizontal surface, visually determine how much the end s side is curved, and determine the degree of curvature visually, and the direction of curvature is substantially parallel to the ground. To do. At this time, when the utility pole K is viewed from the source port m to the end s side, the end s side is curved to the left or right. In this case, it is assumed that the end s side is curved rightward as shown in FIG.

前記電柱Ｋの末口ｓ側が右側へ湾曲しているので、判定器５０における湾曲判定バー２８を両目盛り板２７，２７に沿って「０」の目盛りよりも正面から見て右側へ移動させる。しかも、この場合前記表１より第三中央指示線２６（電柱Ｋの中心軸線Ｃ）から湾曲判定バー２８の判定基板２８ａの左側の判定ライン３０までの距離Ｄが６３．５ｍｍであるので、その距離に合わせて湾曲判定バー２８を移動させ一致させる。この状態で、調整ネジ２９ｂを締めて湾曲判定バー２８をその位置に固定させる。 Since the end s side of the utility pole K is curved to the right, the curve determination bar 28 in the determination unit 50 is moved along the scale plates 27 and 27 to the right as viewed from the front rather than the scale of “0”. In addition, in this case, the distance D from the third central indicating line 26 (the central axis C of the utility pole K) to the determination line 30 on the left side of the determination substrate 28a of the curvature determination bar 28 is 63.5 mm from Table 1. The curve determination bar 28 is moved and matched in accordance with the distance. In this state, the adjustment screw 29b is tightened to fix the bending determination bar 28 at that position.

次に、図１３に示すようにコンクリート製の電柱Ｋの外周面ｋであって、元口ｍから末口ｓに向かって１００ｃｍの位置に第三透視板２２が末口ｓ側に位置するようにして判定器５０を配置し、前記電柱Ｋの外周方向に沿って摺動させ、水平器１５の気泡が測定管１５ｂの中央に来るように調整する。同様に、元口ｍから末口ｓに向かって２００ｃｍの位置に芯出し器１０を配置し、前記電柱Ｋの外周方向に沿って摺動させ、水平器１５の気泡が測定管１５ｂの中央に来るように調整する。これら判定器５０と芯出し器１０は、いずれも両脚板１２ｂ，１２ｂ、２３ｂ，２３ｂが電柱Ｋの外周面ｋの周方向に沿って位置し、それら下端縁１２ｃ，１２ｃ，２３ｃ，２３ｃは全体が外周面ｋに接することになる。 Next, as shown in FIG. 13, on the outer peripheral surface k of the concrete utility pole K, the third see-through plate 22 is located on the end s side at a position of 100 cm from the main port m toward the end s. Then, the determination device 50 is arranged and slid along the outer peripheral direction of the utility pole K, and adjusted so that the bubble of the level device 15 comes to the center of the measurement tube 15b. Similarly, the centering device 10 is disposed at a position of 200 cm from the source port m toward the end port s, and is slid along the outer peripheral direction of the utility pole K. The bubble of the leveling device 15 is in the center of the measuring tube 15b. Adjust to come. In each of the determination device 50 and the centering device 10, both leg plates 12b, 12b, 23b, and 23b are positioned along the circumferential direction of the outer peripheral surface k of the utility pole K, and the lower end edges 12c, 12c, 23c, and 23c are entirely formed. Is in contact with the outer peripheral surface k.

この状態では、第一透視板１１、第二透視板２１及び第三透視板２２がいずれも平行をなし、第一中央指示線１６、第二中央指示線２５及び第三中央指示線２６の延長線はいずれもコンクリート製電柱Ｋの中心軸線Ｃに交差することになる。これは、芯出し器１０または判定器５０を外周面ｋの周囲に沿って摺動させた場合、いずれの位置でも同じことが言える。この状態で元口ｍから判定器５０の第二透視板２１、第三透視板２２及び芯出し器１０の第一透視板１１を覗いたとき、第一中央指示線１６と第二・第三中央指示線２５，２６が一直線上に重なっていれば芯出し器１０及び判定器５０が正規の位置に配置できたことになる。一方、前記各第一・第二・第三中央指示線１６，２５，２６が一直線上に重ならないときは、判定器５０が前記電柱Ｋの中心軸線Ｃに対し捩れた位置に配置されていることになるため、第二・第三中央指示線２５，２６が重なるように判定器５０を左右どちらかへ回動させて位置調整をする。 In this state, the first see-through plate 11, the second see-through plate 21, and the third see-through plate 22 are all parallel, and the first center indicator line 16, the second center indicator line 25, and the third center indicator line 26 are extended. All the lines intersect the central axis C of the concrete utility pole K. The same can be said at any position when the centering device 10 or the determining device 50 is slid along the periphery of the outer peripheral surface k. In this state, when looking into the second see-through plate 21 and the third see-through plate 22 of the determiner 50 and the first see-through plate 11 of the centering device 10 from the former port m, the first center indicating line 16 and the second and third view lines If the center indicating lines 25 and 26 are aligned on a straight line, the centering device 10 and the determining device 50 can be arranged at the normal positions. On the other hand, when the first, second, and third central indicating lines 16, 25, and 26 do not overlap with each other, the determination device 50 is disposed at a position twisted with respect to the central axis C of the utility pole K. Therefore, the position is adjusted by rotating the determination device 50 to the left or right so that the second and third center indicating lines 25 and 26 overlap.

そして、図１４に示すように元口ｍから覗いて二本の第二・第三中央指示線２５，２６と第一中央指示線１６の計三本が一直線状に重なるように視線を移動させる。この状態で視線が動かないように注意しながら電柱Ｋの末口ｓの外周縁ｓ１が前記湾曲判定バー２８における左側の判定ライン３０の内側（左側）または外側（右側）にあるかどうかを判定する。そこで、図１４実線に示すように末口ｓの外周端ｓ１が判定ライン３０の内側（左側）にあるときは、湾曲度が許容範囲内にあることになり、甲品とされ再使用が可能であると判断される。一方、図１４鎖線に示すように末口ｓの外周縁ｓ１が判定ライン３０の外側（右側）にあるときは、湾曲度が許容範囲外にあることになり、乙品とされ再使用が不可能であると判断される。 Then, as shown in FIG. 14, the line of sight is moved so that a total of three of the two second and third central indicating lines 25 and 26 and the first central indicating line 16 overlap in a straight line. . In this state, it is determined whether the outer peripheral edge s1 of the terminal s of the utility pole K is inside (left side) or outside (right side) of the left determination line 30 in the curve determination bar 28 while taking care not to move the line of sight. To do. Therefore, as shown by the solid line in FIG. 14, when the outer peripheral end s1 of the end s is inside the determination line 30 (left side), the degree of curvature is within the allowable range, and it can be reused as an article. It is judged that. On the other hand, when the outer peripheral edge s1 of the tail end s is outside (right side) of the determination line 30 as shown in FIG. Judged to be possible.

このように、他の実施の形態に係る円柱長尺物の湾曲判定具Ａ１は、芯出し器１０と判定器５０とからなり、水平に横臥されるコンクリート製の電柱Ｋの外周面ｋであってその元口ｍ側に芯出し器１０と判定器５０とを所定の距離離して配置し、判定器５０の第二・第三透視板２１，２２および芯出し器１０の第一透視板１１を順に介して末口ｓ側を見ることによってその電柱Ｋの湾曲度を判定すれば良く、簡単な構成であって誰しも容易に扱えしかも製作コストも低廉になし得る。 As described above, the columnar elongate curvature determination tool A1 according to the other embodiment includes the centering device 10 and the determination device 50, and is an outer peripheral surface k of a concrete utility pole K lying horizontally. The centering device 10 and the determining device 50 are arranged at a predetermined distance on the side of the main opening m, and the second and third see-through plates 21 and 22 of the determining device 50 and the first see-through plate 11 of the centering device 10 are arranged. It is sufficient to determine the degree of curvature of the utility pole K by looking at the end s side in order, and it can be easily handled by anyone with a simple configuration and the manufacturing cost can be reduced.

特に、他の実施の形態における判定器５０にあっては、湾曲判定バー２８が目盛り板２７，２７に沿ってスライドできるようにしているので、将来的に例えば１１ｍ、１３ｍ、１５ｍの長さの電柱や甲乙湾曲量の判定基準が５００ｍｍ以外に見直された場合でも、前記数式から判定器５０の位置における判定値Ｄを導き出すようにすれば、その判定値Ｄが簡単にセットでき至便である。 In particular, in the determination device 50 according to another embodiment, since the bending determination bar 28 can be slid along the scale plates 27 and 27, for example, in the future, the length may be 11 m, 13 m, or 15 m. Even when the judgment standard of the utility pole or the curve of the second and second curves is revised to other than 500 mm, if the judgment value D at the position of the judgment device 50 is derived from the above formula, the judgment value D can be easily set and is convenient.

本発明に係る芯出し器の斜視図。The perspective view of the centering device which concerns on this invention. 図１のＶ−Ｖ線断面図。The VV sectional view taken on the line of FIG. 本発明に係る判定器の斜視図。The perspective view of the determination device concerning the present invention. 図３のＷ−Ｗ線断面図。The WW sectional view taken on the line of FIG. 図３のＸ−Ｘ線断面図。XX sectional drawing of FIG. 使用状態を示すコンクリート製電柱の元口側の斜視図。The perspective view of the main entrance side of the concrete electric pole which shows a use condition. コンクリート製電柱の元口側から末口側を見た斜視図。The perspective view which looked at the end side from the former entrance side of the concrete electric pole. 電柱の中心軸線から判定ラインまでの距離を算出するための簡略図。The simplification figure for calculating the distance from the center axis line of an electric pole to a judgment line. 芯出し器や判定器が電柱の外周面を周動する状態を示す電柱の断面図。Sectional drawing of a utility pole which shows the state in which a centering device and a judgment device move around the outer peripheral surface of a utility pole. 他の実施の形態に係る芯出し器の斜視図。The perspective view of the centering device which concerns on other embodiment. 図１０のＹ−Ｙ線断面図。The YY sectional view taken on the line of FIG. 図１０のＺ−Ｚ線断面図。ZZ sectional drawing of FIG. 使用状態を示すコンクリート製電柱の元口側の斜視図。The perspective view of the main entrance side of the concrete electric pole which shows a use condition. コンクリート製電柱の元口側から末口側を見た斜視図。The perspective view which looked at the end side from the former entrance side of the concrete electric pole. 電柱の中心軸線から判定ラインまでの距離を算出するための簡略図。The simplification figure for calculating the distance from the center axis line of an electric pole to a judgment line. 芯出し器や判定器が電柱の外周面を周動する状態を示す電柱の断面図。Sectional drawing of a utility pole which shows the state in which a centering device and a judgment device move around the outer peripheral surface of a utility pole.

Explanation of symbols

１０芯出し器
１１第一透視板
１２台座部
１６第一中央指示線
２０判定器
２１第二透視板
２２第三透視板
２３台座部
２５第二中央指示線
２６第三中央指示線
２８湾曲判定レバー
５０判定器
Ａ円柱長尺物の湾曲判定具
Ａ１円柱長尺物の湾曲判定具
Ｃ中心軸線
Ｋ円柱長尺物（コンクリート製の電柱）
ｋ外周面 DESCRIPTION OF SYMBOLS 10 Centering device 11 1st see-through board 12 Pedestal part 16 1st center indicator line 20 Judgment device 21 2nd see-through board 22 3rd see-through board 23 Base part 25 2nd center indicator line 26 3rd center indicator line 28 Curve determination lever 50 Judgment A A Cylinder elongate object curve judgment tool A1 Cylinder elongate object curve judgment tool C Center axis K Cylinder elongate object (concrete utility pole)
k Outer surface

Claims

A cylindrical long object curvature determining tool that is arranged on the outer peripheral surface on the base end side of a long cylindrical object such as a utility pole that is horizontally lying and determines the degree of curvature of the long end of the long cylindrical object. And a determiner,
The centering device has a transparent first see-through plate provided with a first center indicating line, and when the centering device is installed on the outer circumferential surface of the long cylindrical object, the first see-through plate is the long cylindrical member. The first central indicator line is perpendicular to the central axis of the object, and its extension always intersects the central axis of the elongated object,
The determination unit includes a transparent second see-through plate provided with a second center indicator line, and a transparent third see-through plate provided in parallel with the second see-through plate and provided with a third center indicator line. When the container is installed on the outer peripheral surface of the long cylindrical object, the second and third perspective plates are perpendicular to the central axis of the long cylindrical object and the second central indicator line and the third central indicator The lines always extend along the central axis of the elongated cylinder,
The third see-through plate is provided with a determination line that is parallel to the third central indicating line and is capable of determining a degree of curvature of the long end of the cylindrical long object at a predetermined distance from the third central indicating line, The centering device and the determining device are arranged at a predetermined distance on the outer peripheral surface on the proximal end side of the utility pole so that the centering device is positioned on the distal end side of the utility pole. It is made possible to determine the degree of bending of a cylindrical long object.

Provided on one side surface of the third see-through plate is a curve determination bar whose side edges are parallel to the third central indicating line and move freely along the one side surface in a direction perpendicular to the third central indicating line; 2. The cylindrical long object curvature determination tool according to claim 1, wherein both side edges of the curvature determination bar are used as determination lines for determining a degree of curvature on a distal end side of the long cylindrical object.