| 摘要 |
PROBLEM TO BE SOLVED: To provide an attachment device and the like that enable a blade, replacing a manual tool such as a ready-made engraving knife and a chisel, to be used and can be attached to and detached from an impact tool.SOLUTION: Attachment devices A, B, and C for fixing a blade to an output shaft tip of an impact tool of a pneumatic type etc., are threadably attached. The attachment device A has a holder 4, having a groove for detention of a neck of the blade, installed on a main body 8, and a ready-made engraving knife is fixed. The attachment device B has a joint part between a main body 13 and a blade projected or recessed in a shape of a circular truncated cone as a mounting joint region. The attachment device C has a hole bored in a top of a main body 20 so as to insert and extract different shapes of a round pole and a square pole and also has four corners cut, and a holder c21 is arranged at an outer periphery of the main body so as to fasten the tip part of the main body 20. |
