OVAL TYPE RUGGEDNESS-FITTED ANCHOR HOLE DRILLING DEVICE, OVAL TYPE RUGGEDNESS-FITTED ANCHOR HOLE DRILLING METHOD, AND CONCRETE STRUCTURE FORMED WITH OVAL TYPE RUGGEDNESS-FITTED ANCHOR HOLE

• Main Authors: TAKAHASHI KENICHI, SHOJI AKIO, WATASE HIROSHI, UCHIDA TAKESHI, AZUMA YOSUKE
• Format: Patent
• Language: English; Japanese
• Published: 08.12.2022
• Subjects: BORING; BUILDING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE; CEILINGS; FIXED CONSTRUCTIONS; FLOORS; FORMS; GENERAL BUILDING CONSTRUCTIONS; HANDLING BUILDING MATERIALS ON THE SITE; INSULATION OR OTHER PROTECTION OF BUILDINGS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS; ROOFS; SCAFFOLDING; SHUTTERING; TRANSPORTING; TURNING; WALLS, e.g. PARTITIONS; WORKING CEMENT, CLAY, OR STONE; WORKING STONE OR STONE-LIKE MATERIALS

To provide an oval type ruggedness-fitted anchor hole drilling device capable of drilling a ruggedness-fitted anchor hole having high fixing power with respect to a concrete structure of a reinforcement material.SOLUTION: In an anchor hole drilling device 1, longitudinal movement means 5 running on a base plate 3 and longitudinally moving guide means 4 and a drilling machine body 2 to the longitudinal two directions of one direction orthogonal to a rotary shaft 22 is provided, a recessed part formation fixture 6 simultaneously forming plural recessed parts at the inner circumferential face of a drilled anchor hole h1 can be fitted to the rotary shaft 22, the recessed part formation fixture 6 comprises: a shaft body made of a bar stock fittable to the rotary shaft; and plural circular blades projecting in a disk shape to the outside, while rotatively driving the recessed part formation fixture 6 by the drilling machine body 2, the guide means 4 and the drilling machine body 2 are longitudinally moved by the longitudinal movement means 5 to form oval type ruggedness formed with the recessed parts in the longitudinal two directions at the anchor hole.SELECTED DRAWING: Figure 1 【課題】補強材のコンクリート構造物に対する定着力の高い凹凸付きアンカー孔を短時間で削孔できる小判型凹凸付きアンカー孔削孔装置を提供する。【解決手段】アンカー孔削孔装置１において、ベースプレート３上を走行してガイド手段４及び削孔機本体２を回転軸２２と直交する一方向の前後二方向に進退動する前後進退動手段５を備え、削孔したアンカー孔ｈ１の内周面に同時に複数の凹部を形成する凹部形成治具６が回転軸２２に装着可能となっており、凹部形成治具６は、回転軸に装着可能な棒材からなる軸体と、この軸体の外周から所定間隔をあけて外側に円盤状に突出する複数の円形刃と、を有し、削孔機本体２で凹部形成治具６を回転駆動しながら前後進退動手段５でガイド手段４及び削孔機本体２を前後動してアンカー孔に前後二方向に凹部が形成された小判型凹凸を形成する。【選択図】図１