Title:
SCREW TIGHTENING TOOL
Document Type and Number:
WIPO Patent Application WO/2012/014503
Kind Code:
A1
Abstract:
An screw tightening tool (1) includes: a handle part (22) to be held by a user; a trigger (25); a power supplying section (6, 7) that supplies an electrical power in accordance with an operated amount of the trigger; and a motor (3) that rotates in accordance with the electrical power supplied from the power supplying section. The power supplying section supplies the motor with a preventing electrical power for preventing the motor from rotating with respect to the handle part when a predetermined condition is satisfied.
Inventors:
OOMORI KATSUHIRO (JP)
NAKAMURA MIZUHO (JP)
ITO YUTAKA (JP)
NISHIKAWA TOMOMASA (JP)
MASHIKO HIRONORI (JP)
SUMI ATSUSHI (JP)
TAKEDA TAKESHI (JP)
OGURA MASAYUKI (JP)
NAKAMURA MIZUHO (JP)
ITO YUTAKA (JP)
NISHIKAWA TOMOMASA (JP)
MASHIKO HIRONORI (JP)
SUMI ATSUSHI (JP)
TAKEDA TAKESHI (JP)
OGURA MASAYUKI (JP)
Application Number:
PCT/JP2011/004360
Publication Date:
February 02, 2012
Filing Date:
August 01, 2011
Export Citation:
Assignee:
HITACHI KOKI KK (JP)
OOMORI KATSUHIRO (JP)
NAKAMURA MIZUHO (JP)
ITO YUTAKA (JP)
NISHIKAWA TOMOMASA (JP)
MASHIKO HIRONORI (JP)
SUMI ATSUSHI (JP)
TAKEDA TAKESHI (JP)
OGURA MASAYUKI (JP)
OOMORI KATSUHIRO (JP)
NAKAMURA MIZUHO (JP)
ITO YUTAKA (JP)
NISHIKAWA TOMOMASA (JP)
MASHIKO HIRONORI (JP)
SUMI ATSUSHI (JP)
TAKEDA TAKESHI (JP)
OGURA MASAYUKI (JP)
International Classes:
B25B21/00; B25B21/02
Foreign References:
| EP0222658A1 | 1987-05-20 | |||
| JP2009078317A | 2009-04-16 | |||
| EP1847355A2 | 2007-10-24 | |||
| DE4128651A1 | 1993-03-04 | |||
| JP2009078317A | 2009-04-16 |
Attorney, Agent or Firm:
KITAZAWA, Kazuhiro et al. (31-14 Yushima 2-chome, Bunkyo-k, Tokyo 34, JP)
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Claims: