| 摘要 |
PROBLEM TO BE SOLVED: To install an attachment for a disk body without damaging functions of a safety device in a strike-out tool of a gas combustion type or the like. SOLUTION: A head part 3 of the strike-out tool comprises a fixed-type outer guide 16 and a slidable inner guide 17. The inner guide 17 is used as a lock releasing member and its tip part is exposed out of the outer guide 16. The attachment 20 comprises a sleeve 32 fixed to the outer guide 16 and a disk holder 33 slidably fitted to the sleeve 32. The disk holder 33 is energized by a spring 34 to the advancing direction. The inner guide 17 does not retreat even the disk holder is made to retreat, which secures the safety functions. COPYRIGHT: (C)2006,JPO&NCIPI
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