EXCAVATED SOIL SCATTERING PREVENTION TOOL

To provide an excavated soil scattering prevention tool capable of reducing the time required for curing work, as well as the time required for preparation work during excavation, and capable of being stored and transported without being bulky.SOLUTION: The object is an excavated soil scattering pre...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MOGI SADANOBU, URAKAWA KOJI, MITANI TETSUYA
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide an excavated soil scattering prevention tool capable of reducing the time required for curing work, as well as the time required for preparation work during excavation, and capable of being stored and transported without being bulky.SOLUTION: The object is an excavated soil scattering prevention tool 1 which is attached to a down-the-hole hammer 2 including a hollow cylindrical hammer case 3 and catches excavated soil blown upward along an outer surface of the hammer case 3. It comprises a main body sheet 12 that is formed into a partially annular shape with a flexible sheet body, and is attached to the hammer case 3 in an umbrella-like position expanding downward, with an arcuate edge 16 on a small diameter side being in contact with an outer peripheral surface of the hammer case 3, and a stopper 13 for holding the main body sheet 12 attached to the hammer case 3 in position.SELECTED DRAWING: Figure 1 【課題】養生作業に要する時間を削減することに加えて、掘削時の準備作業に要する時間を削減することができ、さらに嵩張ることなく保管、運搬することができる掘削土飛散防止具を提供する。【解決手段】中空筒状のハンマケース3を含むダウンザホールハンマ2に装着されて、ハンマケース3の外面に沿って上向きに吹き上げられる掘削土を受け止める掘削土飛散防止具1を対象とする。柔軟性を有するシート体で部分円環状に形成され、小径側の円弧縁部16がハンマケース3の外周面に接する状態で、当該ハンマケース3に対して下拡がりの傘状姿勢で装着される本体シート12と、ハンマケース3に装着された本体シート12を位置保持するためのストッパー13とを備えている【選択図】図1