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Title:
POWER SCREW DRIVER
Document Type and Number:
Japanese Patent JP2000326244
Kind Code:
A
Abstract:

To provide a power screw driver formed so that the power ground and electrostatic ground of a motor may be separated from each other.

This power screw driver is provided with a motor 11 connected to a power source by a 3-pin terminal including a ground pin through a noise filter 15, reduction gear mechanism 12 connected to the driving shaft 11a of the motor, a chuck 13 fitted to the output shaft 12a of the reduction gear mechanism, a driver bit 14 fitted to the chuck, whereas the motor and the noise filter are connected to a power ground line G1. In the power screw driver 10, the driver bit 14 and the motor 11 are electrically insulated each other by an insulating means 16.


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JPH08118246BOLT FASTENING TOOL
Inventors:
TAKAZAWA SHIGERU
SHOJI MASAYUKI
Application Number:
JP1999000135889
Publication Date:
November 28, 2000
Filing Date:
May 17, 1999
Export Citation:
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Assignee:
MITSUMI ELECTRIC CO
International Classes:
B25B21/00; B25F5/00; (IPC1-7): B25B21/00; B25F5/00



 
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