JP4859371B2 - Width measuring device - Google Patents

Width measuring device Download PDF

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JP4859371B2
JP4859371B2 JP2005016358A JP2005016358A JP4859371B2 JP 4859371 B2 JP4859371 B2 JP 4859371B2 JP 2005016358 A JP2005016358 A JP 2005016358A JP 2005016358 A JP2005016358 A JP 2005016358A JP 4859371 B2 JP4859371 B2 JP 4859371B2
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shaft
line
width measuring
crack
knock
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JP2006208011A (en
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武麿 湯浅
純 進藤
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井本刃物株式会社
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Description

本発明は、建築物の床、壁及び天井、並びに道路等に生じたクラックの幅を測定するために使用される幅測定装置に関する。   The present invention relates to a width measuring device used for measuring the width of a crack generated in a floor, a wall and a ceiling of a building, a road and the like.

建築物の床、壁及び天井、並びに道路等にクラックが生じており、補修が施される場合、まず、クラックの幅が測定される。クラックの幅に対応して、補修方法が決定され、予算が決まるからである。クラックの幅が0.2mm以下である場合、内部の補修は不要であり、目地材によって表面のみが補修される、又はそのまま放置される。クラックの幅が略0.3mmである場合、建築物の床、壁及び天井、並びに道路等のクラックが生じている部分の表面近傍を削り取って補修する必要がある。クラックの幅が0.5mmを超える場合、建築物の床、壁及び天井、並びに道路等のクラックが生じている部分の下に設けられた下地に対する補修が必要となる。   When a crack is generated in a floor, a wall and a ceiling of a building, a road or the like, and repair is performed, first, the width of the crack is measured. This is because the repair method is determined according to the width of the crack, and the budget is determined. When the width of the crack is 0.2 mm or less, the internal repair is unnecessary, and only the surface is repaired by the joint material or left as it is. When the width of the crack is approximately 0.3 mm, it is necessary to scrape and repair the vicinity of the surface of the floor, wall and ceiling of the building and the cracked portion of the road or the like. When the width of the crack exceeds 0.5 mm, it is necessary to repair the floor provided on the floor, walls and ceiling of the building, and the base provided under the cracked portion of the road or the like.

従来、クラックを測定するために、クラックスケールカードが用いられている。クラックスケールカードには、幅が異なる複数の線と、この線の幅を表示する数字とが記載されている。作業者は、クラックとクラックスケールカード上の線とを見比べ、クラックの幅と同等の幅と思われる線を決定し、その線の幅を表す数字を読むことになる。   Conventionally, crack scale cards are used to measure cracks. The crack scale card describes a plurality of lines having different widths and a number indicating the width of the lines. The operator compares the crack with the line on the crack scale card, determines a line that seems to be equal to the width of the crack, and reads a number representing the width of the line.

機械部品間の隙間を測定するために用いられる隙間ゲージは、厚みが異なる複数のスレートからなるが、この隙間ゲージのスレートをクラックに差し入れて、クラックの幅を測定することも考えられている。   A gap gauge used for measuring a gap between mechanical parts is composed of a plurality of slate having different thicknesses, and it is also considered to insert the slate of the gap gauge into a crack and measure the width of the crack.

しかし、上記クラックスケールカードを用いたクラックの測定においては、作業者の主観に基づく、目視による判断によるので、精度良く測定することが出来ないという問題がある。また、天井等の離れた部分のクラックを測定する場合、手が届きにくく、線及び数字が見えにくいので作業がしにくいという問題がある。そして、隙間ゲージが用いられる場合、クラックが真っ直ぐに生じていないので、クラックに差し入れにくいという問題がある。   However, in the crack measurement using the crack scale card, there is a problem in that it cannot be measured with high accuracy because it is based on visual judgment based on the subjectivity of the operator. In addition, when measuring cracks in a distant part such as a ceiling, there is a problem that it is difficult to reach because hands are difficult to reach and lines and numbers are difficult to see. And when a clearance gauge is used, since the crack has not arisen straight, there exists a problem that it is hard to insert in a crack.

本発明の目的は、精度良く、高効率にクラックの幅を測定することが出来る幅測定装置の提供にある。   An object of the present invention is to provide a width measuring apparatus capable of measuring the width of a crack with high accuracy and high efficiency.

本発明に係る幅測定装置は、
(1)幅を測定すべきクラックに差し入れられる線部、
及び
(2)線部の後端側に設けられた軸部
を備えており、軸部が先端側へスライドさせられることにより、線部が先端部から飛び出すように構成されている。
The width measuring device according to the present invention is
(1) A line part inserted into a crack whose width is to be measured,
And (2) A shaft portion provided on the rear end side of the line portion is provided, and the line portion is configured to protrude from the tip portion by sliding the shaft portion toward the tip end side.

好ましくは、本発明に係る幅測定装置は、
直径が異なる線部が各別に先端側に設けられた、複数の軸部を備えており、所望の直径を有する線部が先端部から飛び出すように構成されている。
Preferably, the width measuring apparatus according to the present invention is
A plurality of shaft portions each having a line portion with a different diameter provided on the distal end side are provided, and a line portion having a desired diameter is configured to protrude from the distal end portion.

好ましくは、本発明に係る幅測定装置は、
軸部の後端側に設けられたノック部を備えており、このノック部が先端側へスライドさせられることにより、線部が先端部から飛び出すように構成されている。
Preferably, the width measuring apparatus according to the present invention is
A knock portion provided on the rear end side of the shaft portion is provided, and the knock portion is slid to the tip side so that the line portion jumps out from the tip portion.

好ましくは、この幅測定装置においては、線部が、熱膨張係数が小さい線材からなる。   Preferably, in this width measuring apparatus, the wire portion is made of a wire having a small coefficient of thermal expansion.

本発明の幅測定装置によれば、精度良く、高効率にクラックの幅を測定することが可能である。   According to the width measuring apparatus of the present invention, it is possible to accurately measure the width of a crack with high efficiency.

以下、適宜図面が参照されつつ、好ましい実施形態に基づいて本発明が詳細に説明される。   Hereinafter, the present invention will be described in detail based on preferred embodiments with appropriate reference to the drawings.

図1は、本発明の一実施形態に係る幅測定装置1が示された側面図、図2は、図1の幅測定装置1の縦断面図であり、図3は、図1の幅測定装置1のIII-III 線断面図である。説明が分かりやすくなるように、図2において、断面の奥側に存在する部材は省略してある。   1 is a side view showing a width measuring apparatus 1 according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the width measuring apparatus 1 of FIG. 1, and FIG. 3 is a width measuring of FIG. FIG. 3 is a cross-sectional view of the device 1 taken along line III-III. In order to make the explanation easy to understand, in FIG. 2, members existing on the back side of the cross section are omitted.

ペン型の幅測定装置1は、前筒部2、中筒部3、後筒部4及びクリップ部19を備える。後筒部4の中央部より少し先端部寄りの内面には、軸挿通部5が嵌められている。軸挿通部5には4つの孔5aが設けられており、各孔5aには、孔5aより小径である、4つの軸部6、軸部7、軸部8及び軸部9が挿通されている。軸部6の先端側には線支持部10が連設されており、線支持部10には、直径0.3mmのピアノ線からなる線部11が支持されている。軸部6の後端部の外周側には、コイルバネ12が嵌められている。軸部6の後端側には、ノック部13が連設されている。   The pen-type width measuring device 1 includes a front cylinder part 2, a middle cylinder part 3, a rear cylinder part 4, and a clip part 19. A shaft insertion portion 5 is fitted on the inner surface slightly closer to the tip than the center portion of the rear cylinder portion 4. The shaft insertion portion 5 is provided with four holes 5a, and the four shaft portions 6, the shaft portion 7, the shaft portion 8, and the shaft portion 9, which are smaller in diameter than the holes 5a, are inserted into the holes 5a. Yes. A wire support portion 10 is connected to the distal end side of the shaft portion 6, and a wire portion 11 made of a piano wire having a diameter of 0.3 mm is supported on the wire support portion 10. A coil spring 12 is fitted on the outer peripheral side of the rear end portion of the shaft portion 6. A knock portion 13 is connected to the rear end side of the shaft portion 6.

ノック部13は、後筒部4の後端部に設けられた、4つの案内孔4aのうちの一つに嵌められている。ノック部13は、押し下げ部13a、突起部13b、突起部13c、凹部13d及び係止部13eを備える。押し下げ部13aは、案内孔4aから外側に突出しており、この案内孔4aに沿って、押し下げ部13aがスライドされるように構成されている。突起部13bは、押し下げ部13aと反対の内側方向に突出している。突起部13cはノック部13において、突起部13bより先端側に設けられており、これに連設して、凹部13dが設けられている。係止部13eは、ノック部13の先端部に設けられている。図示されていないが、ノック部13の平面の先端部には、線部11の直径を示す「0.3」の数字が記載されている。   The knock portion 13 is fitted in one of the four guide holes 4 a provided at the rear end portion of the rear cylinder portion 4. The knock portion 13 includes a push-down portion 13a, a protruding portion 13b, a protruding portion 13c, a recessed portion 13d, and a locking portion 13e. The push-down portion 13a protrudes outward from the guide hole 4a, and the push-down portion 13a is configured to slide along the guide hole 4a. The protruding portion 13b protrudes in the inner direction opposite to the depressed portion 13a. The protrusion 13c is provided in the knock part 13 on the tip side from the protrusion 13b, and is provided with a recess 13d. The locking portion 13 e is provided at the tip portion of the knock portion 13. Although not shown in the drawing, a number “0.3” indicating the diameter of the line portion 11 is described at the front end portion of the flat surface of the knock portion 13.

軸部6と同様に、軸部8の先端側には線支持部14が連設されており、線支持部14には、直径0.7mmのピアノ線からなる線部15が支持されている。軸部8の後端部の外周側には、コイルバネ16が嵌められており、軸部8の後端側には、ノック部17が連設されている。ノック部17は、押し下げ部17a、突起部17b、突起部17c、凹部17d及び係止部17eを備える。ノック部17の平面の先端部には、線部15の直径を示す「0.7」の数字が記載されている。   Similar to the shaft portion 6, a wire support portion 14 is connected to the tip end side of the shaft portion 8, and a wire portion 15 made of a piano wire having a diameter of 0.7 mm is supported on the wire support portion 14. . A coil spring 16 is fitted on the outer peripheral side of the rear end portion of the shaft portion 8, and a knock portion 17 is connected to the rear end side of the shaft portion 8. The knock portion 17 includes a push-down portion 17a, a projection portion 17b, a projection portion 17c, a recess portion 17d, and a locking portion 17e. A number “0.7” indicating the diameter of the line portion 15 is described at the front end of the flat surface of the knock portion 17.

軸部7の後端側には、ノック部18が設けられている。ノック部18は押し下げ部18aを備えており、ノック部18の平面の先端部には、線部(図示せず)の直径を示す「0.5」の数字が記載されている。図示されていないが、軸部9の後端側にはノック部が連設されており、軸部9の先端側には、直径0.2mmの線部及び線支持部が連設されている。   A knock portion 18 is provided on the rear end side of the shaft portion 7. The knock portion 18 includes a push-down portion 18a, and a number “0.5” indicating the diameter of a line portion (not shown) is described at the front end portion of the flat surface of the knock portion 18. Although not shown, a knock portion is continuously provided on the rear end side of the shaft portion 9, and a wire portion and a wire support portion having a diameter of 0.2 mm are continuously provided on the distal end side of the shaft portion 9. .

図4は、ノック部13が案内孔4aに沿って押し下げられた状態が示された縦断面図である。説明が分かりやすくなるように、図4において、断面の奥側に存在する部材は省略してある。ノック部13の押し下げ部13aが押し下げられると、コイルバネ12が圧縮し、突起部13bが内側に向かって、係止部13eが、後筒部4の後端部内面に設けられた突起部4bに係止される。軸部6は、軸挿通部5の孔5aにおいて、軸挿通部5の中心側に寄り、幅測定装置1の先端部中央部から線支持部10及び線部11が飛び出す。   FIG. 4 is a longitudinal sectional view showing a state in which the knock portion 13 is pushed down along the guide hole 4a. In order to make the explanation easy to understand, in FIG. 4, members existing on the back side of the cross section are omitted. When the push-down portion 13a of the knock portion 13 is pushed down, the coil spring 12 is compressed, the projection portion 13b is directed inward, and the locking portion 13e is formed on the projection portion 4b provided on the inner surface of the rear end portion of the rear cylinder portion 4. Locked. The shaft portion 6 is close to the center side of the shaft insertion portion 5 in the hole 5 a of the shaft insertion portion 5, and the line support portion 10 and the line portion 11 protrude from the center portion of the distal end portion of the width measuring device 1.

他のノック部の押し下げ部を押し下げると、その反動でノック部13の係止部13eの係止が解除されて、押し下げ部13aが案内孔4aの後端部まで上がり、他のノック部の係止部が後筒部4の他の突起部4bに係止され、他のノック部の先端側に設けられた線支持部及び線部が、幅測定装置1の先端部中央部から飛び出す。   When the push-down portion of the other knock portion is pushed down, the lock portion 13e of the knock portion 13 is unlocked by the reaction, and the push-down portion 13a rises to the rear end portion of the guide hole 4a. The stop portion is locked to the other protrusion 4 b of the rear cylinder portion 4, and the line support portion and the line portion provided on the distal end side of the other knock portion jump out from the central portion of the distal end portion of the width measuring device 1.

以上のように構成された幅測定装置1は、次のようにして使用される。図5は、床20に生じたクラック21の幅が測定される状態が示された斜視図である。作業者が、クラック21の幅が「0.3mm」くらいと見当を付けた場合、前述したようにして、ノック部13の押し下げ部13aを押し下げて、直径0.3mmの線部11及び線支持部10を幅測定装置1から突出させる。   The width measuring apparatus 1 configured as described above is used as follows. FIG. 5 is a perspective view showing a state in which the width of the crack 21 generated on the floor 20 is measured. When the operator has an idea that the width of the crack 21 is about “0.3 mm”, the push-down portion 13a of the knock portion 13 is pushed down as described above, and the wire portion 11 having a diameter of 0.3 mm and the wire support are supported. The part 10 is protruded from the width measuring device 1.

この状態で、作業者は、床20のクラック21に線部11を差し入れる。線部11がクラック21に入る場合、上記と同様にして、軸部7のノック部18の押し下げ部18aを押し下げて、直径0.5mmの線部及び線支持部を幅測定装置1から突出させ、線部をクラック21に差し入れる。直径0.5mmの線部がクラック21に入らない場合、クラック21の幅は0.3mm以上、0.5mm未満であることになる。直径0.5mmの線部がクラック21に入る場合、さらに、軸部8のノック部17の押し下げ部17aを押し下げて、直径0.7mmの線部15及び線支持部14を突出させて、線部15をクラック21に差し入れる。線部15がクラック21に入る場合、クラック21の幅は0.7mm以上であることになり、線部15がクラック21に入らない場合、クラック21の幅は0.5mm以上、0.7mm未満であることになる。   In this state, the operator inserts the line portion 11 into the crack 21 of the floor 20. When the wire portion 11 enters the crack 21, the push-down portion 18a of the knock portion 18 of the shaft portion 7 is pushed down in the same manner as described above to cause the wire portion and the wire support portion having a diameter of 0.5 mm to protrude from the width measuring device 1. The line part is inserted into the crack 21. When a line part having a diameter of 0.5 mm does not enter the crack 21, the width of the crack 21 is not less than 0.3 mm and less than 0.5 mm. When a line part having a diameter of 0.5 mm enters the crack 21, the push-down part 17 a of the knock part 17 of the shaft part 8 is further pushed down to project the line part 15 and the line support part 14 having a diameter of 0.7 mm. The part 15 is inserted into the crack 21. When the line part 15 enters the crack 21, the width of the crack 21 is 0.7 mm or more. When the line part 15 does not enter the crack 21, the width of the crack 21 is 0.5 mm or more and less than 0.7 mm. It will be.

線部11がクラック21に入らない場合、上記と同様にして、軸部9のノック部の押し下げ部を押し下げて、直径0.2mmの線部及び線支持部を幅測定装置1から突出させ、この線部をクラック21に差し入れる。この線部がクラック21に入らない場合、クラック21の幅は0.2mm未満であることになる。線部がクラック21に入る場合、クラック21は0.2mm以上、03mm未満であることになる。   When the line part 11 does not enter the crack 21, in the same manner as described above, the push-down part of the knock part of the shaft part 9 is pushed down to project the 0.2 mm diameter line part and the line support part from the width measuring device 1, This line portion is inserted into the crack 21. When this line part does not enter the crack 21, the width of the crack 21 is less than 0.2 mm. When the line portion enters the crack 21, the crack 21 is 0.2 mm or more and less than 03 mm.

本実施形態に係る幅測定装置1においては、作業者の主観に基づく、目視による判断ではなく、直径が異なる、複数の線部を実際にクラック21に差し入れて、クラック21の幅を判断するので、精度良く、高効率に、クラック21の幅を測定することが出来る。また、天井等の離れた部分のクラックを測定する場合においても、クラックに線部が挿入されたか否かを判断すればよいので、作業が容易である。そして、隙間ゲージと異なり、スポット的に測定するので、クラックが曲がっている場合においても、容易に測定することが出来る。   In the width measuring apparatus 1 according to the present embodiment, the determination of the width of the crack 21 is made by actually inserting a plurality of line portions having different diameters into the crack 21 instead of the visual determination based on the subjectivity of the operator. The width of the crack 21 can be measured with high accuracy and high efficiency. Further, even when measuring a crack in a remote part such as a ceiling, it is only necessary to determine whether or not a line part has been inserted into the crack, so that the operation is easy. And since it measures like a spot unlike a clearance gauge, even when the crack is bent, it can measure easily.

本実施形態においては、幅測定装置1が直径0.2、0.3、0.5、0.7mmの4つの線部を有する場合につき説明しているがこれに限定されるものではなく、線部の個数及び直径は適宜に変更され得る。また、幅測定装置が1本の線部を有するように構成され、線部の直径が異なる、複数個の幅測定装置が用いられて、クラックの幅が測定されることにしてもよい。さらに、線部はピアノ線から構成される場合に限定されず、熱膨張係数が小さくて寸法が変化せず、繰り返しの使用によっても摩耗しにくく、錆びにくい線材から構成されるものであればよい。   In this embodiment, although the case where the width measuring apparatus 1 has four line portions having a diameter of 0.2, 0.3, 0.5, and 0.7 mm is described, the present invention is not limited to this. The number and diameter of the line portions can be changed as appropriate. Further, the width of the crack may be measured by using a plurality of width measuring devices in which the width measuring device is configured to have one line portion and the diameters of the line portions are different. Furthermore, the wire portion is not limited to the case where the wire portion is composed of a piano wire, as long as the wire portion is composed of a wire material that has a small coefficient of thermal expansion and does not change in size, is not easily worn even after repeated use, and is not easily rusted. .

図6は、本発明の他の実施形態に係る幅測定装置31が示された縦断面図である。説明が分かりやすくなるように、図6において、断面の奥側に存在する部材は省略してある。   FIG. 6 is a longitudinal sectional view showing a width measuring device 31 according to another embodiment of the present invention. In order to make the explanation easier to understand, in FIG. 6, members existing on the back side of the cross section are omitted.

ペン型の幅測定装置31は、筒部32を備えている。筒部32の中央部より少し先端側寄りの内面には、軸挿通部33が嵌められており、筒部32の先端部には、軸挿通部34が嵌められている。軸挿通部33には4つの孔33aが設けられており、軸挿通部34には4つの孔34aが設けられている。孔33aの一つと、この孔33aの延長線上にある孔34aとには、軸部35が挿通されており、他の孔33aと孔34aとには、軸部36が挿通されている。図示されていない、残りの2つの孔33a及び孔34aには、2つの軸部が挿通されている。   The pen-type width measuring device 31 includes a cylinder part 32. A shaft insertion portion 33 is fitted on the inner surface slightly closer to the distal end side than the central portion of the cylindrical portion 32, and a shaft insertion portion 34 is fitted on the distal end portion of the cylindrical portion 32. The shaft insertion portion 33 is provided with four holes 33a, and the shaft insertion portion 34 is provided with four holes 34a. The shaft portion 35 is inserted into one of the holes 33a and the hole 34a on the extension line of the hole 33a, and the shaft portion 36 is inserted into the other holes 33a and 34a. Two shaft portions are inserted through the remaining two holes 33a and 34a (not shown).

軸部35の先端側には線支持部37が連設されており、線支持部37には、直径0.3mmのピアノ線からなる線部38が支持されている。軸部35の後端部の外周側には、コイルバネ39が嵌められており、軸部35の後端側には、ノック部40が連設されている。   A wire support portion 37 is connected to the distal end side of the shaft portion 35, and a wire portion 38 made of a piano wire having a diameter of 0.3 mm is supported on the wire support portion 37. A coil spring 39 is fitted on the outer peripheral side of the rear end portion of the shaft portion 35, and a knock portion 40 is continuously provided on the rear end side of the shaft portion 35.

ノック部40は、筒部32の後端部に設けられた、4つの案内孔32aのうちの一つに嵌められている。ノック部40は、押し下げ部40a、突起部40b、突起部40c、凹部40d及び係止部40eを備える。押し下げ部40aは、案内孔32aから外側に突出しており、この案内孔32aに沿って、押し下げ部40aがスライドされる。   The knock portion 40 is fitted into one of the four guide holes 32 a provided at the rear end portion of the cylindrical portion 32. The knock part 40 includes a push-down part 40a, a protrusion part 40b, a protrusion part 40c, a recess part 40d, and a locking part 40e. The push-down portion 40a protrudes outward from the guide hole 32a, and the push-down portion 40a is slid along the guide hole 32a.

軸部35と同様に、軸部36の先端側には線支持部41が連設されており、線支持部41には、直径0.7mmのピアノ線からなる線部42が支持されている。軸部36の後端部の外周側には、コイルバネ43が嵌められており、軸部36の後端側には、ノック部44が連設されている。ノック部44は、押し下げ部44a、突起部44b、突起部44c、凹部44d及び係止部44eを備える。   Similar to the shaft portion 35, a wire support portion 41 is connected to the distal end side of the shaft portion 36, and the wire support portion 41 is supported by a wire portion 42 made of a piano wire having a diameter of 0.7 mm. . A coil spring 43 is fitted on the outer peripheral side of the rear end portion of the shaft portion 36, and a knock portion 44 is connected to the rear end side of the shaft portion 36. The knock portion 44 includes a push-down portion 44a, a protrusion 44b, a protrusion 44c, a recess 44d, and a locking portion 44e.

図示されていない、他の2つの軸部の後端側にはノック部が連設されており、先端側には、線支持部及び線部が連設されている。これらの線部は、直径0.2mm及び0.5mmのピアノ線からなる。   A knock portion is connected to the rear end side of the other two shaft portions, not shown, and a line support portion and a line portion are connected to the front end side. These line portions are composed of piano wires having diameters of 0.2 mm and 0.5 mm.

図7は、ノック部40が案内32aに沿って押し下げられた状態が示された縦断面図である。ノック部40が押し下げられると、コイルバネ39が圧縮し、突起部40bが内側に向かい、係止部40eが、筒部32の後端部内面に設けられた突起部32bに係止される。軸部35は、軸挿通部33の孔33aにおいて、軸挿通部33の中心側に寄り、軸挿通部34の孔34aにおいて、軸挿通部34の中心側に寄り、幅測定装置31の先端部から線支持部37及び線部38が飛び出す。   FIG. 7 is a longitudinal sectional view showing a state in which the knock portion 40 is pushed down along the guide 32a. When the knocking portion 40 is pushed down, the coil spring 39 is compressed, the protruding portion 40b faces inward, and the locking portion 40e is locked to the protruding portion 32b provided on the inner surface of the rear end portion of the cylindrical portion 32. The shaft portion 35 is closer to the center side of the shaft insertion portion 33 in the hole 33 a of the shaft insertion portion 33, and is closer to the center side of the shaft insertion portion 34 in the hole 34 a of the shaft insertion portion 34. The line support part 37 and the line part 38 jump out of the line.

他のノック部の押し下げ部を押し下げると、その反動でノック部40の係止部40eの係止が解除されて、押し下げ部40aが案内孔32aの後端部まで上がり、他のノック部の係止部が筒部32の他の突起部32bに係止され、他のノック部の先端側に設けられた線支持部及び線部が、幅測定装置31の先端部から飛び出す。   When the push-down part of the other knock part is pushed down, the lock part 40e of the knock part 40 is released by the reaction, and the push-down part 40a rises to the rear end part of the guide hole 32a. The stop portion is locked to the other protrusion 32 b of the cylindrical portion 32, and the line support portion and the line portion provided on the distal end side of the other knock portion jump out from the distal end portion of the width measuring device 31.

幅測定装置31は、幅測定装置1と同様にして使用される。まず、線部38が幅測定装置31から露出され、この線部38がクラックに挿入されるか否かが判断される。この判断に基づき、次に露出させるべき線部が決まり、この線部がクラックに挿入されるか否かが判断されて、クラックの幅の範囲が決定される。   The width measuring device 31 is used in the same manner as the width measuring device 1. First, the line portion 38 is exposed from the width measuring device 31, and it is determined whether or not the line portion 38 is inserted into the crack. Based on this determination, the line portion to be exposed next is determined, and it is determined whether or not this line portion is inserted into the crack to determine the range of the crack width.

本実施形態に係る幅測定装置31においては、精度良く、高効率に、クラックの幅を測定することが出来る。この幅測定装置31においては、筒部32が先細ではなく、先端面が後端面と同径であるので、線部38等の収納時及び線部38等が露出される時に、線部38等の先端部が筒部32の内面に擦れて摩耗することがなく、長期の使用が可能である。   In the width measuring device 31 according to the present embodiment, the width of the crack can be measured with high accuracy and high efficiency. In this width measuring device 31, since the cylindrical portion 32 is not tapered and the front end surface has the same diameter as the rear end surface, when the line portion 38 is stored and when the line portion 38 is exposed, the line portion 38, etc. The tip portion of the tube is not rubbed and worn on the inner surface of the cylindrical portion 32, and can be used for a long time.

図8は、本発明のさらに他の実施形態に係る幅測定装置51が示された一部縦断面図である。   FIG. 8 is a partial longitudinal sectional view showing a width measuring device 51 according to still another embodiment of the present invention.

ペン型の幅測定装置51は、前筒部52及び後筒部53を備えている。後筒部53には、円柱状の軸挿通部54が嵌められており、軸挿通部54の先端部は前筒部52に螺合されている。軸挿通部54には3つの孔54aが設けられている。孔54aの一つには、軸後端部挿通部55が設けられており、この軸後端部挿通部55に軸部56の後端部が嵌められている。軸部56の先端部には、直径0.3mmのピアノ線からなる線部57が設けられている。軸後端部挿通部55の先端側であって、軸部56の中央部の外周側には、コイルバネ58が嵌められている。   The pen-type width measuring device 51 includes a front cylinder part 52 and a rear cylinder part 53. A columnar shaft insertion portion 54 is fitted into the rear cylinder portion 53, and a tip end portion of the shaft insertion portion 54 is screwed into the front cylinder portion 52. The shaft insertion portion 54 is provided with three holes 54a. One of the holes 54 a is provided with a shaft rear end portion insertion portion 55, and the rear end portion of the shaft portion 56 is fitted into the shaft rear end portion insertion portion 55. A line portion 57 made of a piano wire having a diameter of 0.3 mm is provided at the tip portion of the shaft portion 56. A coil spring 58 is fitted on the distal end side of the shaft rear end insertion portion 55 and on the outer peripheral side of the central portion of the shaft portion 56.

後筒部53の内面には、側面視が逆三角形状で、先端部に凹部53bを有する案内部53aが、切欠きにより設けられている。軸後端部挿通部55の先端部外側には、案内部53aに沿って軸後端部挿通部55がスライドするためのスライド部59が突設されている。   On the inner surface of the rear cylinder part 53, a guide part 53a having an inverted triangular shape in a side view and having a concave part 53b at the tip part is provided by a notch. A slide portion 59 for sliding the shaft rear end portion insertion portion 55 along the guide portion 53a is provided on the outer side of the tip end portion of the shaft rear end portion insertion portion 55.

後筒部53に対して前筒部52を回転させると、この前筒部52に螺合された軸挿通部54が回転する。これによりスライド部59が案内部53aに案内されて、軸後端部挿通部55がスライドし、コイルバネ58が圧縮して、スライド部59が案内部53aの凹部53bに嵌められたところで軸後端部挿通部55は停止する。このとき線部57が前筒部52から突出する。   When the front cylinder part 52 is rotated with respect to the rear cylinder part 53, the shaft insertion part 54 screwed into the front cylinder part 52 is rotated. As a result, the slide portion 59 is guided by the guide portion 53a, the shaft rear end insertion portion 55 slides, the coil spring 58 is compressed, and the slide portion 59 is fitted in the recess 53b of the guide portion 53a. The part insertion part 55 stops. At this time, the line portion 57 protrudes from the front tube portion 52.

軸挿通部54の図示しない、他の2つの孔54aにも、軸後端部挿通部が設けられており、この軸後端部挿通部に軸部の後端部が嵌められており、この軸部の先端部には、直径0.2mm及び直径0.5mmの線部がそれぞれ設けられている。これらの線部も、上記と同様にして、前筒部52から突出させられる。   The other two holes 54a (not shown) of the shaft insertion portion 54 are also provided with a shaft rear end portion insertion portion, and the rear end portion of the shaft portion is fitted to this shaft rear end portion insertion portion. Line portions having a diameter of 0.2 mm and a diameter of 0.5 mm are respectively provided at the tip of the shaft portion. These line portions are also projected from the front tube portion 52 in the same manner as described above.

幅測定装置51は、幅測定装置1及び幅測定装置31と同様にして使用される。まず、線部57が幅測定装置51から露出され、この線部57がクラックに挿入されるか否かが判断される。この判断に基づき、次に露出させるべき線部が決まり、この線部がクラックに挿入されるか否かが判断されて、クラックの幅の範囲が決定される。   The width measuring device 51 is used in the same manner as the width measuring device 1 and the width measuring device 31. First, the line portion 57 is exposed from the width measuring device 51, and it is determined whether or not the line portion 57 is inserted into the crack. Based on this determination, the line portion to be exposed next is determined, and it is determined whether or not this line portion is inserted into the crack to determine the range of the crack width.

本実施形態に係る幅測定装置51においては、精度良く、高効率に、クラックの幅を測定することが出来る。この幅測定装置51においては、前筒部52が先細ではなく、先端面が後端面と同径であるので、線部57等の収納時及び線部57等が露出される時に、線部57等の先端部が前筒部52の内面に擦れて摩耗することがなく、長期の使用が可能である。   In the width measuring device 51 according to the present embodiment, the width of the crack can be measured with high accuracy and high efficiency. In this width measuring device 51, since the front tube portion 52 is not tapered and the front end surface has the same diameter as the rear end surface, the line portion 57 is stored when the line portion 57 is stored and when the line portion 57 is exposed. Thus, the tip portion such as the like does not rub against the inner surface of the front cylindrical portion 52 and wears, and long-term use is possible.

本発明は、建築物の床、壁及び天井、並びに道路等に生じたクラックの幅を測定するために使用され得る。   The present invention can be used to measure the width of cracks occurring in building floors, walls and ceilings, roads, and the like.

図1は、本発明の一実施形態に係る幅測定装置が示された側面図である。FIG. 1 is a side view showing a width measuring apparatus according to an embodiment of the present invention. 図2は、図1の幅測定装置の縦断面図である。FIG. 2 is a longitudinal sectional view of the width measuring apparatus of FIG. 図3は、図1の幅測定装置のIII-III 線断面図である。FIG. 3 is a cross-sectional view taken along line III-III of the width measuring apparatus of FIG. 図4は、ノック部が案内孔に沿って押し下げられ、線部が露出した状態が示された縦断面図である。FIG. 4 is a longitudinal sectional view showing a state where the knock part is pushed down along the guide hole and the line part is exposed. 図5は、床に生じたクラックの幅が測定される状態が示された斜視図である。FIG. 5 is a perspective view illustrating a state in which the width of a crack generated on the floor is measured. 図6は、本発明の他の実施形態に係る幅測定装置が示された縦断面図である。FIG. 6 is a longitudinal sectional view showing a width measuring apparatus according to another embodiment of the present invention. 図7は、ノック部が案内孔に沿って押し下げられ、線部が露出した状態が示された縦断面図である。FIG. 7 is a longitudinal sectional view showing a state where the knock portion is pushed down along the guide hole and the line portion is exposed. 図8は、本発明のさらに他の実施形態に係る幅測定装置が示された一部縦断面図である。FIG. 8 is a partial longitudinal sectional view showing a width measuring device according to still another embodiment of the present invention.

符号の説明Explanation of symbols

1・・・幅測定装置
2・・・前筒部
3・・・中筒部
4・・・後筒部
5・・・軸挿通部
6・・・軸部
8・・・軸部
10・・・線支持部
11・・・線部
12・・・コイルバネ
13・・・ノック部
13a・・・押し下げ部
13b・・・突起部
13c・・・突起部
13d・・・凹部
13e・・・係止部
31・・・幅測定装置
32・・・筒部
33・・・軸挿通部
34・・・軸挿通部
35・・・軸部
37・・・線支持部
38・・・線部
39・・・コイルバネ
40・・・ノック部
40a・・・押し下げ部
40b・・・突起部
40c・・・突起部
40d・・・凹部
40e・・・係止部
51・・・幅測定装置
52・・・前筒部
53・・・後筒部
53a・・・案内部
54・・・軸挿通部
55・・・軸後端部挿通部
56・・・軸部
57・・・線部
58・・・コイルバネ
59・・・スライド部
DESCRIPTION OF SYMBOLS 1 ... Width measurement apparatus 2 ... Front cylinder part 3 ... Middle cylinder part 4 ... Rear cylinder part 5 ... Shaft insertion part 6 ... Shaft part 8 ... Shaft part 10 ... -Wire support part 11 ... Line part 12 ... Coil spring 13 ... Knock part 13a ... Push-down part 13b ... Projection part 13c ... Projection part 13d ... Concave part 13e ... Locking Part 31: Width measuring device 32 ... Tube part 33 ... Shaft insertion part 34 ... Shaft insertion part 35 ... Shaft part 37 ... Line support part 38 ... Line part 39 ... -Coil spring 40 ... Knock part 40a ... Push-down part 40b ... Projection part 40c ... Projection part 40d ... Recess 40e ... Locking part 51 ... Width measuring device 52 ... Front Cylindrical part 53 ... Rear cylindrical part 53a ... Guide part 54 ... Shaft insertion part 55 ... Shaft rear end part insertion part 56 ... Shaft part 57・ Line part 58 ... Coil spring 59 ... Slide part

Claims (4)

建築物の床、壁及び天井、並びに道路に生じたクラックの幅を測定するために、このクラックに差し入れられる線部と、
該線部の後端側に設けられた軸部と、
線部及び軸部が収納される筒部と
を備えており、
複数の軸部を備えており、軸部の先端側にそれぞれ直径が異なる線部が設けられており、軸部の後端側にノック部が設けられており、
このノック部が押し下げ部及び係止部を備えており、
筒部が案内孔を設けられており、押し下げ部が案内孔から外側に突出して、押し下げ部が案内孔に沿ってスライドするように構成されており、
一の線部が設けられた一の軸部の押し下げ部が押し下げられると、一の軸部の係止部が筒部内面の突起部に係止され一の軸部が中心側に寄って、一の軸部が先端側へスライドさせられて、一の線部が筒部の先端部から飛び出しており、
他の線部が設けられた他の軸部の押し下げ部が押し下げられると、他の軸部の係止部が筒部内面の突起部に係止され、一の軸部の係止部と筒部の突起部との係止が解除されて、一の軸部の押し下げ部が案内孔の後端部まで上がって、他の軸部の先端に設けられた他の線部が筒部の先端部から飛び出す幅測定装置。
To measure the width of cracks that have occurred in the floor, walls and ceilings of buildings and roads,
A shaft portion provided on the rear end side of the line portion;
A tube portion in which the wire portion and the shaft portion are accommodated,
It is provided with a plurality of shafts, line portions having different diameters are provided on the tip side of the shafts, and a knock portion is provided on the rear end side of the shafts,
This knock part has a push-down part and a locking part,
The tube portion is provided with a guide hole, the push-down portion protrudes outward from the guide hole, and the push-down portion is configured to slide along the guide hole,
When the push-down part of the one shaft part provided with one line part is pushed down, the locking part of the one shaft part is locked to the protruding part of the inner surface of the cylinder part, and the one shaft part approaches the center side, One shaft part is slid to the tip side, and one line part protrudes from the tip part of the cylinder part.
When the push-down portion of the other shaft portion provided with the other line portion is pushed down, the lock portion of the other shaft portion is locked to the protrusion on the inner surface of the tube portion, and the lock portion of one shaft portion and the tube The locking of the protruding part of the part is released, the pushing down part of one shaft part goes up to the rear end part of the guide hole, and the other line part provided at the tip of the other shaft part is the tip of the cylinder part Width measuring device popping out from the section .
上記筒部の中央部の内周径と先端部の内周径が同径とされている請求項1に記載の幅測定装置。   The width measuring apparatus according to claim 1, wherein the inner peripheral diameter of the central portion of the cylindrical portion is the same as the inner peripheral diameter of the tip portion. 上記軸部の先端側に設けられた線部の直径を示す数字が、ノック部に記載されている請求項1又は2に記載の幅測定装置。 The width measuring device according to claim 1 or 2 , wherein a number indicating a diameter of a line portion provided on a tip side of the shaft portion is described in the knock portion. 上記線部が、熱膨張係数が小さい線材からなる請求項1から3のいずれかに記載の幅測定装置。 The width measuring device according to any one of claims 1 to 3 , wherein the wire portion is made of a wire having a small coefficient of thermal expansion.
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KR102236378B1 (en) * 2020-08-11 2021-04-05 에이아이안전연구원 주식회사 Concrete Crack Width Measuring Device

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JP5595091B2 (en) * 2010-04-07 2014-09-24 中日本ハイウェイ・エンジニアリング名古屋株式会社 Crack gauge
CN106835917B (en) * 2017-04-07 2018-03-06 吉林大学 The stepping formula verifying attachment of vehicle-mounted road surface flaw detection system

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JPS62193501A (en) * 1986-02-19 1987-08-25 Hitachi Ltd Speed display for vehicle
JPH01242296A (en) * 1988-03-15 1989-09-27 Morris Ostrowiecki Eraser unit built-in knock type propelling pencil
JPH0226798A (en) * 1988-07-15 1990-01-29 Shigemi Iida Multi-lead-core turret type propelling pencil
JP2706899B2 (en) * 1994-05-17 1998-01-28 新潟精機株式会社 Taper gauge
JP3847430B2 (en) * 1997-11-06 2006-11-22 三菱鉛筆株式会社 Double writing instrument
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102236378B1 (en) * 2020-08-11 2021-04-05 에이아이안전연구원 주식회사 Concrete Crack Width Measuring Device

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