BORING TOOL

To make it possible to bore plural holes altogether.SOLUTION: A boring tool for use in a portable boring device is provided with: plural drill blades 8 which can be rotationally driven around parallel different drill axes Xd; a support unit part 9 which supports a base end part of each drill blade 8...

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Bibliographic Details
Main Authors NOMOTO HIROMASA, SHOJI HIROYUKI
Format Patent
LanguageEnglish
Japanese
Published 19.03.2020
Subjects
BORING
CUTTING
CUTTING-OUT
HAND CUTTING TOOLS
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORATING
PERFORMING OPERATIONS
PUNCHING
SEVERING
SEVERING BY MEANS OTHER THAN CUTTING
STAMPING-OUT
TRANSPORTING
TURNING
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Summary:To make it possible to bore plural holes altogether.SOLUTION: A boring tool for use in a portable boring device is provided with: plural drill blades 8 which can be rotationally driven around parallel different drill axes Xd; a support unit part 9 which supports a base end part of each drill blade 8; a contact part 10 which contacts a boring object part prior to the drill blade 8; and a positioning projection part 11 which is pressed against the boring object part, and determines a setting position of a boring tool body. A line-of-sight opening 12, which opens in an outer peripheral part and through which a contact tip 11d of the positioning projection part 11 can be seen from an outer peripheral side, is provided between the support unit part 9 and the contact part 10.SELECTED DRAWING: Figure 5 【課題】複数の孔をまとめて穿孔できるようにする。【解決手段】携行式の穿孔装置に用いられる穿孔具であって、平行な異なるドリル軸芯Ｘｄ周りに回転駆動可能な複数のドリル刃８と、各ドリル刃８の基端部を支持する支持ユニット部９と、ドリル刃８に先行して穿孔対象部に接触する接触部１０と、穿孔対象部に対して押し付けて穿孔具本体のセット位置を決める位置決め突出部１１と、が設けられ、支持ユニット部９と接触部１０との間には、外周部に開口すると共に、位置決め突出部１１の当接先端部１１ｄを外周側から見通せる見通し開口部１２が設けてある。【選択図】図５
Bibliography:Application Number: JP20190227667