| 摘要 |
PROBLEM TO BE SOLVED: To make work safe and accurate while reducing the physical burden of a worker by operating a hammer by the foot, which has been conventionally operated by the hand. SOLUTION: The hammer 2 vertically operated by the foot is provided at the center of a metal frame 1 to apply an impact to a crushing tool 3 attached to a lower part of the metal frame 1. COPYRIGHT: (C)2008,JPO&INPIT
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