Title:
ELECTRIC SCREW DRIVER
Document Type and Number:
Japanese Patent JP2004074311
Kind Code:
A
Abstract:
To efficiently perform a series of screw driving work from the positioning of a screw to its driving when using an electric screw driver.
This electric screw driver is provided with a rotating member, a switch member, a power control part controlling a drive power applied to the rotating member, and a control part control the power control part. The control part is characterized in having a means retaining the power of the power control part to a fixed value and a means making the power of the power control part a variable value.
Inventors:
YUASA YUICHI
Application Number:
JP2002234743A
Publication Date:
March 11, 2004
Filing Date:
August 12, 2002
Export Citation:
Assignee:
RYOBI LTD
International Classes:
B25B23/14; H02P7/29; (IPC1-7): B25B23/14; H02P5/17
Attorney, Agent or Firm:
Yasuo Ishikawa
Toshiyuki Shiojima
Toshiyuki Shiojima