| 摘要 |
PROBLEM TO BE SOLVED: To provide a rechargeable electric screwdriver which is compact and light-weight, can be rapidly charged and can reduce a running cost, and an electric screwdriver instrument. SOLUTION: The electric screwdriver 10 accommodates or houses (carries) all functions of the electric screwdriver except a charger in a housing 12 made of resin for example. The housing 12 has an approximately cylindrical tube 16 for rotatably supporting a bit holder 14 on an aperture on a front face and a grip 18 branching downwardly from the tube 16 with an approximately right or obtuse angle from the side of the bit holder 14. A brake switch, a clutch, a gear, a motor, a printed wiring board, an electric double layer capacitor or the like are accommodated in the tube 16. COPYRIGHT: (C)2008,JPO&INPIT
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