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A platform for research: civil engineering, architecture and urbanism
JIG FOR DRILLING PREPARED HOLE FOR ANCHOR BOLT, PREPARED HOLE DRILLING METHOD, AND PREPARED HOLE FORMATION CONFIRMATION DEVICE
To drill a prepared hole so that a depth of the prepared hole is within a prescribed range, when forming a prepared hole for an anchor bolt repeatedly on a concrete wall surface.SOLUTION: A jig for drilling a prepared hole for an anchor bolt is mounted on a drill bit for a prepared hole which is chucked by a hammer drill. The jig for drilling the prepared hole includes: a pipe having a predetermined length which has an outer diameter larger than an inner diameter of the prepared hole to be drilled, and has an inner diameter larger than an outer diameter of the drill bit for the prepared hole; and a filling material which is filled inside the pipe where the drill bit for the prepared hole is inserted, and whose heatproof temperature is at least equal to or higher than 200°C. When a length of the drill bit for the prepared hole is L, an allowable depth of the prepared hole is equal to or greater than D1 and equal to or less than D2, and a grip margin by the hammer drill of the drill bit for the prepared hole is CK, the predetermined length S of the pipe is made to be L-CK-D2≤S≤L-CK-D1.SELECTED DRAWING: Figure 2
【課題】コンクリート壁面に繰り返しアンカーボルト用の下穴を形成する際に、下穴の深さが規定の範囲に入るように下穴を加工する。【解決手段】アンカーボルトの下穴加工用治具は、ハンマドリルにチャッキングされる下穴用ドリルビットに装着される。この下穴加工用治具は、加工される下穴の内径より大きな外径を有し、下穴用ドリルビットの外径より大きな内径を有する所定長さのパイプと、下穴用ドリルビットが挿入されたパイプの内側に充填される、耐熱温度が少なくとも２００℃以上である充填材と、を備える。このパイプの所定長Ｓは、下穴用ドリルビットの長さがＬ、下穴の許容深さがＤ１以上Ｄ２以下、下穴用ドリルビットのハンマドリルによる掴み代がＣＫ、であるとき、Ｌ－ＣＫ－Ｄ２≦Ｓ≦Ｌ－ＣＫ－Ｄ１、とされている。【選択図】図２
JIG FOR DRILLING PREPARED HOLE FOR ANCHOR BOLT, PREPARED HOLE DRILLING METHOD, AND PREPARED HOLE FORMATION CONFIRMATION DEVICE
To drill a prepared hole so that a depth of the prepared hole is within a prescribed range, when forming a prepared hole for an anchor bolt repeatedly on a concrete wall surface.SOLUTION: A jig for drilling a prepared hole for an anchor bolt is mounted on a drill bit for a prepared hole which is chucked by a hammer drill. The jig for drilling the prepared hole includes: a pipe having a predetermined length which has an outer diameter larger than an inner diameter of the prepared hole to be drilled, and has an inner diameter larger than an outer diameter of the drill bit for the prepared hole; and a filling material which is filled inside the pipe where the drill bit for the prepared hole is inserted, and whose heatproof temperature is at least equal to or higher than 200°C. When a length of the drill bit for the prepared hole is L, an allowable depth of the prepared hole is equal to or greater than D1 and equal to or less than D2, and a grip margin by the hammer drill of the drill bit for the prepared hole is CK, the predetermined length S of the pipe is made to be L-CK-D2≤S≤L-CK-D1.SELECTED DRAWING: Figure 2
【課題】コンクリート壁面に繰り返しアンカーボルト用の下穴を形成する際に、下穴の深さが規定の範囲に入るように下穴を加工する。【解決手段】アンカーボルトの下穴加工用治具は、ハンマドリルにチャッキングされる下穴用ドリルビットに装着される。この下穴加工用治具は、加工される下穴の内径より大きな外径を有し、下穴用ドリルビットの外径より大きな内径を有する所定長さのパイプと、下穴用ドリルビットが挿入されたパイプの内側に充填される、耐熱温度が少なくとも２００℃以上である充填材と、を備える。このパイプの所定長Ｓは、下穴用ドリルビットの長さがＬ、下穴の許容深さがＤ１以上Ｄ２以下、下穴用ドリルビットのハンマドリルによる掴み代がＣＫ、であるとき、Ｌ－ＣＫ－Ｄ２≦Ｓ≦Ｌ－ＣＫ－Ｄ１、とされている。【選択図】図２
JIG FOR DRILLING PREPARED HOLE FOR ANCHOR BOLT, PREPARED HOLE DRILLING METHOD, AND PREPARED HOLE FORMATION CONFIRMATION DEVICE
アンカーボルトの下穴加工用治具、下穴加工方法および下穴形成確認装置
YAJIMA TOSHINORI (author)
2022-09-13
Patent
Electronic Resource
Japanese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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