| 摘要 |
PROBLEM TO BE SOLVED: To provide a nail puller, efficiently pulling a nail fastening plaster boards to the bed, and easily knocking the plaster boards with the shape thereof kept intact. SOLUTION: This nail puller includes a nail grip actuating body 5, opening and closing to grip a nail, and piercing the plaster boards in the opening state. A control part 14 controls a forward and backward driving part 7 and an opening and closing driving part 6 to perform the operation of moving backward the nail grip actuating body 5 to pull out the nail from the plaster boards while a reaction force part 4 is abutted on the plaster boards and opening the nail grip actuating body 5 when the nail grip actuating body 5 pierced through the plaster boards is closed to grip the nail. COPYRIGHT: (C)2007,JPO&INPIT
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