| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary tool guide mechanism which facilitates fixing operation for setting the rotary tool guide mechanism to a work position and informs a worker of changes of a material to be drilled in drilling operation in which the worker looks upward. ! SOLUTION: A rotary tool guide mechanism 1 includes: a guide support pillar 2 fixed between a work surface MS and an installation surface Hs facing the work surface MS; a support pillar length adjustment mechanism 30 which adjusts a length of the guide support pillar 2 through biasing means 18; a tool attachment mechanism 40 which is supported so as to move up and down along the guide support pillar 2; a holding mechanism 50 which fixes a position of the tool attachment mechanism in the guide support pillar so that the position may change along the guide support pillar 2 and holds the position; and a handle mechanism 60 which moves up and down the tool attachment mechanism 40 held by the holding mechanism along the guide support pil |
