A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PREPARED HOLE PROCESSING JIG FOR ANCHOR BOLT
To process prepared holes for an anchor bolt so that depths of the prepared holes fall within a specified range, in repeatedly forming the prepared holes on a concrete wall surface.SOLUTION: A prepared hole processing jig for an anchor bolt is attached to a drill bit for a prepared hole which is chucked to a hammer drill. The prepared hole processing jig comprises: a first part comprising a penetration part comprising an inner diameter which is larger than an outer diameter of a shank part of the drill bit for a prepared hole and is smaller than an outer diameter of an effective part; a second part, provided at a position away from the first part, which comprises a penetration part whose inner diameter is larger than the outer diameter of the effective part; and a joining part joining the first part to the second part along an axial direction of the drill bit for a prepared hole of the prepared hole processing jig. A predetermined length S of a pipe satisfies a relational expression of LT-CK-D2≤S≤LT-CK-D1, where a length of the drill bit for a prepared hole is defined as L, an allowable depth of the prepared hole is defined as D1 or more and D2 or less, and a grip margin of the drill bit for a prepared hole by the hammer drill is defined as CK.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、下穴用ドリルビットの前記シャンク部の外径より大きく、かつ有効部の外径より小さい内径を備えた貫通部を備えた第１部分と、第１部分とは離間した位置に設けられ、有効部の外径より大きな内径の貫通部を備えた第２部分と、第１部分と第２部分とを、当該下穴加工用治具の下穴用ドリルビットの軸方向に沿って結合する結合部分とを備える。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、ＬＴ－ＣＫ－Ｄ２≦Ｓ≦ＬＴ－ＣＫ－Ｄ１、とされている。【選択図】図２
PREPARED HOLE PROCESSING JIG FOR ANCHOR BOLT
To process prepared holes for an anchor bolt so that depths of the prepared holes fall within a specified range, in repeatedly forming the prepared holes on a concrete wall surface.SOLUTION: A prepared hole processing jig for an anchor bolt is attached to a drill bit for a prepared hole which is chucked to a hammer drill. The prepared hole processing jig comprises: a first part comprising a penetration part comprising an inner diameter which is larger than an outer diameter of a shank part of the drill bit for a prepared hole and is smaller than an outer diameter of an effective part; a second part, provided at a position away from the first part, which comprises a penetration part whose inner diameter is larger than the outer diameter of the effective part; and a joining part joining the first part to the second part along an axial direction of the drill bit for a prepared hole of the prepared hole processing jig. A predetermined length S of a pipe satisfies a relational expression of LT-CK-D2≤S≤LT-CK-D1, where a length of the drill bit for a prepared hole is defined as L, an allowable depth of the prepared hole is defined as D1 or more and D2 or less, and a grip margin of the drill bit for a prepared hole by the hammer drill is defined as CK.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、下穴用ドリルビットの前記シャンク部の外径より大きく、かつ有効部の外径より小さい内径を備えた貫通部を備えた第１部分と、第１部分とは離間した位置に設けられ、有効部の外径より大きな内径の貫通部を備えた第２部分と、第１部分と第２部分とを、当該下穴加工用治具の下穴用ドリルビットの軸方向に沿って結合する結合部分とを備える。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、ＬＴ－ＣＫ－Ｄ２≦Ｓ≦ＬＴ－ＣＫ－Ｄ１、とされている。【選択図】図２
PREPARED HOLE PROCESSING JIG FOR ANCHOR BOLT
アンカーボルトの下穴加工用治具
YAJIMA TOSHINORI (author)
2023-09-20
Patent
Electronic Resource
Japanese
| European Patent Office | 2023
| European Patent Office | 2022
| European Patent Office | 2022