A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PREPARED HOLE MACHINING FIXTURE FOR ANCHOR BOLT, PREPARED HOLE MACHINING METHOD AND PREPARED HOLE FORMING CONFIRMATION DEVICE
To provide a method for machining a prepared hole in such a manner that, when a prepared hole for an anchor bolt is repeatedly formed on a concrete wall face, the depth of the prepared hole is within a prescribed range.SOLUTION: A prepared hole machining fixture 20 for an anchor bolt is attached to a prepared hole drill bit 11 to be chucked to a hammer drill. The prepared hole machining fixture comprises: a pipe (case 11) with a prescribed length having an outside diameter larger than an inside diameter of a prepared hole to be machined and having an inside diameter larger than an outside diameter of the prepared hole drill bit; and a filler 25 to be filled inside the pipe inserted with the prepared hole drill bit and having a heat resistant temperature of at least 200°C or more. A prescribed length S of the pipe satisfies L-CK-D2≤S≤L-CK-D1, provided that the length of the prepared hole drill bit is defined as L, the allowable depth of the prepared hole is defined as D1 or more and D2 or less, and the grip margin by the hammer drill of the prepared hole drill bit is defined as CK.SELECTED DRAWING: Figure 3
【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方法を提供する。【解決手段】アンカーボルトの下穴加工用治具２０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１１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（ケース１１）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２５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３
PREPARED HOLE MACHINING FIXTURE FOR ANCHOR BOLT, PREPARED HOLE MACHINING METHOD AND PREPARED HOLE FORMING CONFIRMATION DEVICE
To provide a method for machining a prepared hole in such a manner that, when a prepared hole for an anchor bolt is repeatedly formed on a concrete wall face, the depth of the prepared hole is within a prescribed range.SOLUTION: A prepared hole machining fixture 20 for an anchor bolt is attached to a prepared hole drill bit 11 to be chucked to a hammer drill. The prepared hole machining fixture comprises: a pipe (case 11) with a prescribed length having an outside diameter larger than an inside diameter of a prepared hole to be machined and having an inside diameter larger than an outside diameter of the prepared hole drill bit; and a filler 25 to be filled inside the pipe inserted with the prepared hole drill bit and having a heat resistant temperature of at least 200°C or more. A prescribed length S of the pipe satisfies L-CK-D2≤S≤L-CK-D1, provided that the length of the prepared hole drill bit is defined as L, the allowable depth of the prepared hole is defined as D1 or more and D2 or less, and the grip margin by the hammer drill of the prepared hole drill bit is defined as CK.SELECTED DRAWING: Figure 3
【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方法を提供する。【解決手段】アンカーボルトの下穴加工用治具２０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１１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（ケース１１）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２５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３
PREPARED HOLE MACHINING FIXTURE FOR ANCHOR BOLT, PREPARED HOLE MACHINING METHOD AND PREPARED HOLE FORMING 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
| European Patent Office | 2022
| European Patent Office | 2023
| European Patent Office | 2022