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 (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
NAKAMURA, Mizuho (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
ITO, Yutaka (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
NISHIKAWA, Tomomasa (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
MASHIKO, Hironori (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
SUMI, Atsushi (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
TAKEDA, Takeshi (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
OGURA, Masayuki (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
NAKAMURA, Mizuho (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
ITO, Yutaka (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
NISHIKAWA, Tomomasa (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
MASHIKO, Hironori (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
SUMI, Atsushi (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
TAKEDA, Takeshi (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
OGURA, Masayuki (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
Application Number:
JP2011/004360
Publication Date:
February 02, 2012
Filing Date:
August 01, 2011
Export Citation:
Assignee:
HITACHI KOKI CO., LTD. (15-1, Konan 2-chome Minato-k, Tokyo 20, 10860, JP)
OOMORI, Katsuhiro (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
NAKAMURA, Mizuho (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
ITO, Yutaka (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
NISHIKAWA, Tomomasa (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
MASHIKO, Hironori (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
SUMI, Atsushi (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
TAKEDA, Takeshi (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
OGURA, Masayuki (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
OOMORI, Katsuhiro (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
NAKAMURA, Mizuho (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
ITO, Yutaka (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
NISHIKAWA, Tomomasa (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
MASHIKO, Hironori (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
SUMI, Atsushi (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
TAKEDA, Takeshi (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
OGURA, Masayuki (1060, Takeda, Hitachinaka-sh, Ibaraki 02, 31285, JP)
International Classes:
B25B21/00; B25B21/02
Attorney, Agent or Firm:
KITAZAWA, Kazuhiro et al. (6F First Genesis Bldg, 31-14 Yushima 2-chome, Bunkyo-k, Tokyo 34, 11300, JP)
Claims: