JP2024004112A - Bolt inclination inspection device - Google Patents

Bolt inclination inspection device Download PDF

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JP2024004112A
JP2024004112A JP2022103593A JP2022103593A JP2024004112A JP 2024004112 A JP2024004112 A JP 2024004112A JP 2022103593 A JP2022103593 A JP 2022103593A JP 2022103593 A JP2022103593 A JP 2022103593A JP 2024004112 A JP2024004112 A JP 2024004112A
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bolt
inclination
annular body
protrusion
driven
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透 齊藤
Toru Saito
健太 山本
Kenta Yamamoto
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KFC Ltd
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KFC Ltd
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Abstract

To be possible to accurately and easily confirm that an inclination of a placed bolt is within an allowable range regardless of a condition of a placed surface of the bolt.SOLUTION: A bolt inclination inspection device 10 includes an annular body 11 in which a contact surface 13 is positioned to mimic a placed surface 52 of a bolt 61 and a projection portion 14 that projects in a reverse direction to the contact surface 13 of the annular body 11. The inclination surface 13 that inclines outward to a projection direction of the projection portion 14 from an edge of a center hole 12 of the annular body 11 is formed on the projection portion 14, and an inclination angle of the inclination surface 13 is set at an allowable inclination angle of the bolt 61.SELECTED DRAWING: Figure 1

Description

本発明は、地山やコンクリート等に打設されたボルトの傾きの点検に用いられるボルト傾き点検器具に関する。 The present invention relates to a bolt inclination inspection device used for inspecting the inclination of bolts cast into earth, concrete, etc.

従来、土木や建築の現場では、特許文献1のように、荷重計、軸力計などを用いて打設されたボルトの軸方向の軸力を測定することが行われている。この軸力の測定を行う際には、例えば図3(a)に示すように、地山101に打設されたボルト102に、ワッシャー103とワッシャー104を外挿すると共に、ワッシャー103とワッシャー104との間に配置してボルト102に荷重計105を外挿する。そして、ワッシャー104の外側でボルト102に螺合されたナット106を締め付け、ナット106の螺入で生じた歪をワッシャー103とワッシャー104との間の荷重計105で測定し、測定した歪からボルト102の軸力を取得する。 BACKGROUND ART Conventionally, at civil engineering and construction sites, the axial force in the axial direction of a bolt that has been driven has been measured using a load meter, an axial force meter, etc., as disclosed in Patent Document 1. When measuring this axial force, for example, as shown in FIG. A load cell 105 is extrapolated to the bolt 102 by placing it between the two. Then, the nut 106 screwed onto the bolt 102 on the outside of the washer 104 is tightened, and the strain caused by screwing the nut 106 is measured with a load meter 105 between the washer 103 and the washer 104. Obtain the axial force of 102.

特開2021-75903号公報JP 2021-75903 Publication

ところで、地山101に打設されたボルト102の軸力を測定する場合、ボルト102が地山101に過度に傾いて打設されていると軸力を正確に測定することができない(図3(b)参照)。そのため、図4に示すように、一般的な工具であるL字状の曲尺107をボルト102の地山101から突出した部分に当てて、打設されたボルト102の傾きが許容範囲内であるか確認している。ボルト102が打設された打設面が鉛直面或いは水平面である場合には、この曲尺107による傾きの確認でもある程度正確な確認を行うことが可能である。 By the way, when measuring the axial force of the bolt 102 driven into the earth 101, if the bolt 102 is installed in the earth 101 with an excessive inclination, the axial force cannot be measured accurately (Fig. 3 (see (b)). Therefore, as shown in FIG. 4, by applying an L-shaped curved scale 107, which is a general tool, to the part of the bolt 102 that protrudes from the ground 101, the inclination of the driven bolt 102 is within the permissible range. I am checking whether If the driving surface on which the bolt 102 is driven is a vertical or horizontal surface, it is possible to confirm the inclination with a certain degree of accuracy using the curved scale 107.

しかしながら、トンネルの内周面や斜面がボルト102の打設面である場合、打設面が湾曲面や傾斜面となることから、L字状の曲尺107を打設面に対して、傾いた状態で配置せざるを得ないか、或いは容易に傾いた状態で配置してしまう事態を生ずる。L字状の曲尺107を打設面に対して水平及び直角に配置することができないと、例えばボルト軸芯X1が、本来あるべきボルト軸芯Xや打設面に対して傾いていても、打設面に対して直角であると誤認してしまう。そのため、ボルト102の打設面の状態に拘わらず、打設されたボルト102の傾きが許容範囲内であることを正確に確認できる器具が求められている。 However, when the inner peripheral surface or slope of the tunnel is the driving surface of the bolt 102, the driving surface becomes a curved surface or an inclined surface. In this case, the device must be placed in an inclined position, or it may easily be placed in an inclined position. If the L-shaped curved length 107 cannot be arranged horizontally and at right angles to the driving surface, for example, even if the bolt axis X1 is tilted with respect to the bolt axis X or the driving surface as it should be, It is mistakenly assumed to be perpendicular to the pouring surface. Therefore, there is a need for an instrument that can accurately confirm that the inclination of the bolt 102 that has been driven is within an allowable range, regardless of the condition of the surface on which the bolt 102 is driven.

本発明は上記課題に鑑み提案するものであって、ボルトの打設面の状態に拘わらず、打設されたボルトの傾きが許容範囲内であることを正確且つ簡単に確認することができるボルト傾き点検器具を提供することを目的とする。 The present invention is proposed in view of the above-mentioned problems, and is a bolt that can accurately and easily confirm that the inclination of a bolt that has been driven is within an allowable range, regardless of the condition of the bolt driving surface. The purpose of this invention is to provide a tilt inspection device.

本発明のボルト傾き点検器具は、ボルトの打設面に倣うように接触面が配置される環状体と、前記環状体の前記接触面に対して逆方向に突出する突出部とを備え、前記環状体の中心穴の縁から前記突出部の突出方向に向かって外側に傾斜する傾斜面が前記突出部に形成され、前記傾斜面の傾斜角度が前記ボルトの傾きの許容傾斜角度に設定されていることを特徴とする。
これによれば、環状体の接触面がボルトの打設面に倣うように配置されるので、打設されたボルトの軸芯の傾きを正確に確認することが出来る。また、環状体の中心穴を打設されたボルトに外挿して環状体の接触面をボルトの打設面に倣うように配置するだけで、簡単にボルト軸芯の傾きを確認することが出来る。即ち、ボルトの打設面の状態に拘わらず、環状体の接触面がボルトの打設面に面的に接触することで、打設されたボルトの傾きが許容範囲内であることを正確且つ簡単に確認することができる。
The bolt inclination inspection instrument of the present invention includes an annular body having a contact surface arranged to follow the driving surface of the bolt, and a protrusion projecting in a direction opposite to the contact surface of the annular body, An inclined surface is formed on the protrusion that slopes outward from the edge of the center hole of the annular body toward the direction in which the protrusion protrudes, and the inclination angle of the inclined surface is set to an allowable inclination angle for the inclination of the bolt. It is characterized by the presence of
According to this, since the contact surface of the annular body is arranged to follow the driving surface of the bolt, it is possible to accurately confirm the inclination of the axis of the driven bolt. Additionally, the inclination of the bolt axis can be easily checked by simply extrapolating the center hole of the annular body to the driven bolt and arranging the contact surface of the annular body to follow the bolt driving surface. . In other words, regardless of the condition of the bolt driving surface, the contact surface of the annular body makes surface contact with the bolt driving surface, so that it is possible to accurately and accurately confirm that the inclination of the driven bolt is within the allowable range. It can be easily checked.

本発明のボルト傾き点検器具は、前記突出部が前記中心穴の周縁から起立する筒状に形成され、筒状の前記突出部の内周面に前記傾斜面が設けられていることを特徴とする。
これによれば、環状体の中心穴を打設されたボルトに外挿して環状体の接触面をボルトの打設面に倣うように配置するだけで、打設されたボルトの全周に亘ってボルトの傾きが許容範囲内か否かを確認することができ、全周に亘るボルトの傾きの確認を効率的に行うことができる。
The bolt inclination inspection instrument of the present invention is characterized in that the protrusion is formed in a cylindrical shape that stands up from the periphery of the center hole, and the inclined surface is provided on the inner peripheral surface of the cylindrical protrusion. do.
According to this, by simply extrapolating the center hole of the annular body to the driven bolt and arranging the contact surface of the annular body to follow the driving surface of the bolt, the entire circumference of the driven bolt can be covered. It is possible to check whether the inclination of the bolt is within the permissible range by checking the inclination of the bolt, and it is possible to efficiently check the inclination of the bolt over the entire circumference.

本発明のボルト傾き点検器具は、前記突出部が前記環状体の半径方向に延びる板状に形成され、板状の前記突出部の前記中心穴側に前記傾斜面が設けられていることを特徴とする。
これによれば、打設されたボルトの傾きが許容範囲内であることを確認できることに加え、ボルトの傾きがどの程度の傾斜角度かの詳細を打設されたボルトの真横から簡単に確認することができ、ボルトの傾斜状態の視認性を高めることができる。
The bolt inclination inspection instrument of the present invention is characterized in that the protrusion is formed in a plate shape extending in the radial direction of the annular body, and the inclined surface is provided on the center hole side of the plate-shaped protrusion. shall be.
According to this, in addition to being able to confirm that the inclination of the bolt that has been driven is within the permissible range, it is also possible to easily check the details of the inclination angle of the bolt from right next to the bolt that has been driven. It is possible to improve the visibility of the inclined state of the bolt.

本発明のボルト傾き点検器具によれば、ボルトの打設面の状態に拘わらず、打設されたボルトの傾きが許容範囲内であることを正確且つ簡単に確認することができる。 According to the bolt inclination inspection instrument of the present invention, it is possible to accurately and easily confirm that the inclination of a driven bolt is within an allowable range, regardless of the condition of the bolt driving surface.

(a)は本発明による第1実施形態のボルト傾き点検器具の斜視図、(b)はその使用状態の断面説明図。(a) is a perspective view of a bolt inclination inspection instrument according to a first embodiment of the present invention, and (b) is an explanatory cross-sectional view of the device in use. (a)は本発明による第2実施形態のボルト傾き点検器具の斜視図、(b)はその使用状態の断面説明図。(a) is a perspective view of a bolt inclination inspection instrument according to a second embodiment of the present invention, and (b) is an explanatory cross-sectional view of the device in use. (a)は従来のボルト軸力測定を説明する断面説明図、(b)は従来のボルト軸力測定においてボルトが過度に傾いた状態を説明する断面説明図(a) is a cross-sectional explanatory diagram illustrating conventional bolt axial force measurement, and (b) is a cross-sectional explanatory diagram illustrating a state where the bolt is excessively tilted in conventional bolt axial force measurement. 従来の打設されたボルトの傾きの曲尺による確認を説明する斜視説明図。FIG. 3 is a perspective explanatory diagram illustrating a conventional method of confirming the inclination of a driven bolt using a curved scale.

〔第1実施形態のボルト傾き点検器具〕
本発明による第1実施形態のボルト傾き点検器具10は、図1に示すように、フランジ状の環状体11と、環状体11の中心穴12の周縁から起立するように形成されている筒状の突出部14を備える。環状体11は、地山51に一部が埋設され且つ残部が打設面52から地山51の外側に突出するように打設されたロックボルトで構成されるボルト61に対し、ボルト61の突出部分に外挿され、ボルト61の打設面52に倣うように接触面13が配置される。接触面13は全体として平らで面一に形成されており、打設面52が平らな場合には打設面52に面接触するようになっている。
[Bolt inclination inspection device of the first embodiment]
As shown in FIG. 1, a bolt inclination inspection instrument 10 according to a first embodiment of the present invention includes a flange-like annular body 11 and a cylindrical shape that is formed to stand up from the periphery of a center hole 12 of the annular body 11. The protrusion 14 is provided. The annular body 11 is different from the bolt 61, which is a rock bolt that is partially buried in the ground 51 and is driven so that the remaining part protrudes from the driving surface 52 to the outside of the ground 51. A contact surface 13 is placed over the protruding portion and arranged to follow the driving surface 52 of the bolt 61 . The contact surface 13 is flat and flush as a whole, and comes into surface contact with the driving surface 52 when the driving surface 52 is flat.

筒状の突出部14は、環状体11の接触面13に対して逆方向に突出するようにして設けられている。また、突出部14には、環状体11の中心穴12の縁から突出部14の突出方向に向かって外側に傾斜する傾斜面15が形成されており、第1実施形態では、筒状の突出部14の内周面にテーパ状の傾斜面15が周状に設けられている。更に、第1実施形態では、中心穴12の周面も、傾斜面15と同一傾斜角度の傾斜面になっており、突出部14の傾斜面15と連続形成されている。 The cylindrical protrusion 14 is provided so as to protrude in the opposite direction to the contact surface 13 of the annular body 11 . Further, the protrusion 14 is formed with an inclined surface 15 that slopes outward from the edge of the center hole 12 of the annular body 11 toward the protrusion direction of the protrusion 14. In the first embodiment, the cylindrical protrusion A tapered inclined surface 15 is circumferentially provided on the inner peripheral surface of the portion 14. Furthermore, in the first embodiment, the peripheral surface of the center hole 12 is also an inclined surface having the same inclination angle as the inclined surface 15, and is formed continuously with the inclined surface 15 of the protrusion 14.

突出部14の傾斜面15及びこれと連続する中心穴12の周面の傾斜面の、接触面13の法線に対する傾斜角度は、ボルト61の傾きの許容傾斜角度に設定されている。第1実施形態では、突出部14の傾斜面15及びこれと連続する中心穴12の周面の傾斜面の傾斜角度は、全周に亘ってボルト61の傾きの許容傾斜角度に設定されている。 The angle of inclination of the inclined surface 15 of the protrusion 14 and the inclined surface of the circumferential surface of the center hole 12 that is continuous therewith with respect to the normal line of the contact surface 13 is set to an allowable inclination angle of the inclination of the bolt 61. In the first embodiment, the inclination angle of the inclined surface 15 of the protrusion 14 and the inclined surface of the peripheral surface of the center hole 12 that is continuous with the inclined surface 15 is set to an allowable inclination angle of the inclination of the bolt 61 over the entire circumference. .

第1実施形態のボルト傾き点検器具10を用いる際には、打設されたボルト61の軸力測定に先立ち、ボルト傾き点検器具10の環状体11及び突出部14をボルト61の突出部分に外挿し、ボルト61の打設面52に倣うように接触面13を配置する。そして、突出部14の内周面である傾斜面15にボルト61が押し付けられない状態であることを確認できれば、打設されたボルト61の傾きが許容傾斜角度の範囲内であることが分かる。 When using the bolt inclination inspection instrument 10 of the first embodiment, before measuring the axial force of the bolt 61 that has been driven, the annular body 11 and the protrusion 14 of the bolt inclination inspection instrument 10 are removed from the protrusion of the bolt 61. The contact surface 13 is placed so as to follow the driving surface 52 of the bolt 61. If it is confirmed that the bolt 61 is not pressed against the inclined surface 15, which is the inner circumferential surface of the protrusion 14, it can be seen that the inclination of the driven bolt 61 is within the allowable inclination angle.

第1実施形態のボルト傾き点検器具10によれば、環状体11の接触面13がボルト61の打設面52に倣うように配置されるので、打設されたボルト61の軸芯の傾きを正確に確認することが出来る。また、環状体11の中心穴12を打設されたボルト61に外挿して環状体11の接触面13をボルト61の打設面52に倣うように配置するだけで、簡単にボルト軸芯の傾きを確認することが出来る。即ち、ボルト61の打設面52の状態に拘わらず、環状体11の接触面13がボルト61の打設面52に面的に接触することで、打設されたボルト61の傾きが許容範囲内であることを正確且つ簡単に確認することができる。更に、このように配置するだけで、打設されたボルト61の全周に亘ってボルト61の傾きが許容範囲内か否かを確認することができ、全周に亘るボルト61の傾きの確認を効率的に行うことができる。 According to the bolt inclination inspection instrument 10 of the first embodiment, since the contact surface 13 of the annular body 11 is arranged to follow the driving surface 52 of the bolt 61, the inclination of the axis of the bolt 61 that has been driven can be checked. You can check it accurately. In addition, by simply extrapolating the center hole 12 of the annular body 11 onto the driven bolt 61 and arranging the contact surface 13 of the annular body 11 so as to follow the driving surface 52 of the bolt 61, the bolt axis can be easily aligned. You can check the slope. That is, regardless of the state of the driving surface 52 of the bolt 61, the contact surface 13 of the annular body 11 is in surface contact with the driving surface 52 of the bolt 61, so that the inclination of the driven bolt 61 is within the permissible range. It is possible to accurately and easily confirm that the Furthermore, by simply arranging it in this way, it is possible to check whether the inclination of the bolt 61 is within the permissible range over the entire circumference of the bolt 61 that has been driven, and the inclination of the bolt 61 can be confirmed over the entire circumference. can be done efficiently.

〔第2実施形態のボルト傾き点検器具〕
本発明による第2実施形態のボルト傾き点検器具20は、図2に示すように、板状の円環である環状体21と、環状体21の半径方向に延びる板状に形成された突出部24を備える。図示例における突出部24の環状体21側の下部は環状体21の半径の長さと同一の長さで形成され、突出部24の下部内端は中心穴22の周縁の一部を構成している。
[Second embodiment of bolt inclination inspection device]
As shown in FIG. 2, the bolt inclination inspection instrument 20 according to the second embodiment of the present invention includes an annular body 21 that is a plate-shaped ring, and a protrusion that is formed in a plate shape that extends in the radial direction of the annular body 21. 24. In the illustrated example, the lower part of the protrusion 24 on the annular body 21 side is formed to have the same length as the radius of the annular body 21, and the lower inner end of the protrusion 24 forms part of the periphery of the center hole 22. There is.

環状体21は、地山51に一部が埋設され且つ残部が打設面52から地山51の外側に突出するように打設されたロックボルトで構成されるボルト61に対し、ボルト61の突出部分に外挿され、ボルト61の打設面52に倣うように接触面23が配置される。接触面23は全体として平らで面一に形成されており、打設面52が平らな場合には打設面52に面接触するようになっている。 The annular body 21 is different from the bolt 61 which is a rock bolt that is partially buried in the earth 51 and is driven such that the remaining part protrudes from the driving surface 52 to the outside of the earth 51. A contact surface 23 is placed over the protruding portion and arranged to follow the driving surface 52 of the bolt 61 . The contact surface 23 is flat and flush as a whole, and comes into surface contact with the driving surface 52 when the driving surface 52 is flat.

板状の突出部24は、環状体21の接触面23に対して逆方向に突出するようにして設けられている。また、突出部24には、環状体21の中心穴22の縁から突出部24の突出方向に向かって外側に傾斜する傾斜面25が形成されており、第2実施形態では、板状の突出部24の中心穴22側にスロープ状の傾斜面25が設けられている。更に、第2実施形態では、中心穴22の周面のうち突出部24と対応する位置の周面は、傾斜面25と同一傾斜角度の傾斜面になっており、突出部24の傾斜面25と連続形成されている。 The plate-shaped protrusion 24 is provided so as to protrude in the opposite direction to the contact surface 23 of the annular body 21 . Further, the protrusion 24 is formed with an inclined surface 25 that slopes outward from the edge of the center hole 22 of the annular body 21 in the direction in which the protrusion 24 protrudes. A slope-shaped inclined surface 25 is provided on the central hole 22 side of the portion 24. Furthermore, in the second embodiment, the circumferential surface of the center hole 22 at a position corresponding to the protrusion 24 is an inclined surface having the same inclination angle as the inclined surface 25. It is formed continuously.

突出部24のスロープ状の傾斜面25及びこれと連続する中心穴22の周面の一部で構成される傾斜面の、接触面23の法線に対する傾斜角度は、ボルト61の傾きの許容傾斜角度に設定されている。 The angle of inclination of the sloped surface 25 of the protrusion 24 and the part of the circumferential surface of the center hole 22 that is continuous with the sloped surface with respect to the normal line of the contact surface 23 is equal to the allowable inclination of the bolt 61. It is set at an angle.

第2実施形態のボルト傾き点検器具20を用いる際には、打設されたボルト61の軸力測定に先立ち、ボルト傾き点検器具10の環状体21をボルト61の突出部分に外挿し、ボルト61の打設面52に倣うように接触面23を配置する。そして、突出部24の内側の傾斜面15にボルト61が押し付けられない状態であることを確認できれば、打設されたボルト61の傾きが許容傾斜角度の範囲内であることが分かる。更に、ボルト傾き点検器具20を環状体21の周方向に順次回転し、突出部24の内側の傾斜面15にボルト61が押し付けられない状態であることを全周に亘って確認できれば、打設されたボルト61の傾きが全周に亘って許容傾斜角度の範囲内であることが分かる。 When using the bolt inclination inspection instrument 20 of the second embodiment, before measuring the axial force of the bolt 61 that has been driven, the annular body 21 of the bolt inclination inspection instrument 10 is extrapolated onto the protruding portion of the bolt 61, and the bolt 61 is The contact surface 23 is arranged so as to follow the pouring surface 52 of. If it is confirmed that the bolt 61 is not pressed against the inner inclined surface 15 of the protrusion 24, it can be seen that the inclination of the driven bolt 61 is within the allowable inclination angle. Furthermore, the bolt inclination inspection tool 20 is sequentially rotated in the circumferential direction of the annular body 21, and if it is confirmed that the bolt 61 is not pressed against the inner slope 15 of the protrusion 24 over the entire circumference, the driving is completed. It can be seen that the inclination of the bolt 61 is within the allowable inclination angle over the entire circumference.

第2実施形態のボルト傾き点検器具20によれば、環状体21の接触面23がボルト61の打設面52に倣うように配置されるので、打設されたボルト61の軸芯の傾きを正確に確認することが出来る。また、環状体21の中心穴22を打設されたボルト61に外挿して環状体21の接触面23をボルト61の打設面52に倣うように配置するだけで、簡単にボルト軸芯の傾きを確認することが出来る。即ち、ボルト61の打設面52の状態に拘わらず、環状体21の接触面23がボルト61の打設面52に面的に接触することで、打設されたボルト61の傾きが許容範囲内であることを正確且つ簡単に確認することができる。更に、ボルト61の傾きがどの程度の傾斜角度かの詳細を打設されたボルト61の真横から簡単に確認することができ、ボルト61の傾斜状態の視認性を高めることができる。 According to the bolt inclination inspection instrument 20 of the second embodiment, since the contact surface 23 of the annular body 21 is arranged to follow the driving surface 52 of the bolt 61, the inclination of the axis of the bolt 61 that has been driven can be checked. You can check it accurately. In addition, by simply extrapolating the center hole 22 of the annular body 21 onto the driven bolt 61 and arranging the contact surface 23 of the annular body 21 so as to follow the driving surface 52 of the bolt 61, the bolt axis can be easily aligned. You can check the slope. That is, regardless of the state of the driving surface 52 of the bolt 61, the contact surface 23 of the annular body 21 is in surface contact with the driving surface 52 of the bolt 61, so that the inclination of the driven bolt 61 is within the allowable range. It is possible to accurately and easily confirm that the Furthermore, the details of the inclination angle of the bolt 61 can be easily confirmed from directly beside the bolt 61 that has been driven, and the visibility of the inclination state of the bolt 61 can be improved.

〔本明細書開示発明の包含範囲〕
本明細書開示の発明は、発明として列記した各発明、各実施形態の他に、適用可能な範囲で、これらの部分的な内容を本明細書開示の他の内容に変更して特定したもの、或いはこれらの内容に本明細書開示の他の内容を付加して特定したもの、或いはこれらの部分的な内容を部分的な作用効果が得られる限度で削除して上位概念化して特定したものを包含する。そして、本明細書開示の発明には下記内容や変形例も含まれる。
[Scope of coverage of the invention disclosed herein]
In addition to each invention and each embodiment listed as an invention, the invention disclosed in this specification is specified by changing the partial contents of these to other contents disclosed in this specification to the extent applicable. , or specified by adding other contents disclosed in this specification to these contents, or specified by deleting these partial contents to the extent that partial effects can be obtained and converting them into a general concept. includes. The invention disclosed in this specification also includes the following contents and modifications.

例えば上記実施形態では、トンネル等の地山51にボルト61を打設し、このボルト61の傾きを確認するためにボルト傾き点検器具10、20を用いる例を説明したが、コンクリートに打設されたボルトの傾きを確認するためにボルト傾き点検器具10、20を用いても好適であり、又、ロックボルト以外のボルトの傾きを確認するためにボルト傾き点検器具10、20を用いても良い。更に、本発明のボルト傾き点検器具は、土木分野や建築分野で打設される適宜のボルトに対して用いることが可能である。 For example, in the above embodiment, the bolt 61 is driven into the ground 51 of a tunnel etc., and the bolt inclination inspection instruments 10 and 20 are used to check the inclination of the bolt 61. It is also suitable to use the bolt inclination inspection instruments 10 and 20 to check the inclination of bolts that have been installed, and it is also possible to use the bolt inclination inspection instruments 10 and 20 to confirm the inclination of bolts other than rock bolts. . Furthermore, the bolt inclination inspection instrument of the present invention can be used for appropriate bolts driven in the civil engineering and construction fields.

また、第2実施形態のボルト傾き点検器具20における板状の突出部24は、環状体21の周方向の複数箇所に間隔を開けて設けることも可能であり、環状体21の周方向の複数箇所に離間して板状の突出部24を設けることで、複数箇所に対応する複数方向においてボルト61の傾きを点検することができる。環状体21の周方向の複数箇所に離間して板状の突出部24を設ける場合、環状体21の全周に亘って設ける構成、或いは環状体21の周方向における局所的な扇状領域だけに設ける構成とすることが可能である。 Further, the plate-shaped protrusions 24 in the bolt inclination inspection instrument 20 of the second embodiment can be provided at multiple locations in the circumferential direction of the annular body 21 at intervals. By providing the plate-shaped protrusions 24 at separate locations, the inclination of the bolt 61 can be inspected in multiple directions corresponding to multiple locations. When the plate-shaped protrusions 24 are provided at multiple locations in the circumferential direction of the annular body 21, they may be provided over the entire circumference of the annular body 21, or only in a local fan-shaped area in the circumferential direction of the annular body 21. It is possible to set it as the structure where it is provided.

本発明は、例えば地山やコンクリートに打設されたロックボルト或いはアンカーボルトの傾きを点検する際に利用することができる。 INDUSTRIAL APPLICATION This invention can be utilized, for example when inspecting the inclination of the rock bolt or anchor bolt cast into the ground or concrete.

10、20…ボルト傾き点検器具 11、21…環状体 12、22…中心穴 13、23…接触面 14、24…突出部 15、25…傾斜面
51…地山 52…打設面 61…ボルト
101…地山 102…ボルト 103、104…ワッシャー 105…荷重計 106…ナット 107…曲尺
X…本来あるべきボルト軸芯 X1…ボルト軸芯
DESCRIPTION OF SYMBOLS 10, 20... Bolt inclination inspection instrument 11, 21... Annular body 12, 22... Center hole 13, 23... Contact surface 14, 24... Projection part 15, 25... Inclined surface 51... Earth 52... Casting surface 61... Bolt 101... Earth 102... Bolt 103, 104... Washer 105... Load cell 106... Nut 107... Curved length X... Original bolt axis X1... Bolt axis

Claims (3)

ボルトの打設面に倣うように接触面が配置される環状体と、
前記環状体の前記接触面に対して逆方向に突出する突出部とを備え、
前記環状体の中心穴の縁から前記突出部の突出方向に向かって外側に傾斜する傾斜面が前記突出部に形成され、
前記傾斜面の傾斜角度が前記ボルトの傾きの許容傾斜角度に設定されていることを特徴とするボルト傾き点検器具。
an annular body whose contact surface is arranged to follow the driving surface of the bolt;
a protrusion protruding in a direction opposite to the contact surface of the annular body;
The protruding portion is formed with an inclined surface that slopes outward from the edge of the center hole of the annular body toward the protruding direction of the protruding portion;
A bolt inclination inspection instrument characterized in that the inclination angle of the inclined surface is set to a permissible inclination angle of the inclination of the bolt.
前記突出部が前記中心穴の周縁から起立する筒状に形成され、
筒状の前記突出部の内周面に前記傾斜面が設けられていることを特徴とする請求項1記載のボルト傾き点検器具。
The protrusion is formed into a cylindrical shape that stands up from the periphery of the center hole,
The bolt inclination inspection instrument according to claim 1, wherein the inclined surface is provided on the inner peripheral surface of the cylindrical protrusion.
前記突出部が前記環状体の半径方向に延びる板状に形成され、
板状の前記突出部の前記中心穴側に前記傾斜面が設けられていることを特徴とする請求項1記載のボルト傾き点検器具。
The protruding portion is formed in a plate shape extending in the radial direction of the annular body,
The bolt inclination inspection instrument according to claim 1, wherein the inclined surface is provided on the center hole side of the plate-shaped protrusion.
JP2022103593A 2022-06-28 2022-06-28 Bolt inclination inspection device Pending JP2024004112A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022103593A JP2024004112A (en) 2022-06-28 2022-06-28 Bolt inclination inspection device

Publications (1)

Publication Number Publication Date
JP2024004112A true JP2024004112A (en) 2024-01-16

Family

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Family Applications (1)

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