Title:
POWER-ACTUATED TOOL
Document Type and Number:
WIPO Patent Application WO/2015/093057
Kind Code:
A1
Abstract:
An electric power tool 10a has a brushless motor 31 for driving a tip tool "T", and a motor case 82 is at least partly covered by a motor housing 14c made of aluminum alloy and exposed to an outside. A control board 78 provided with a control circuit for controlling the rotation of the brushless motor 31 is disposed adjacent to the motor housing 14c. The brushless motor 31 and a control board 78 are cooled by cooling air generated by a fun 79, thereby enhancing the cooling characteristics of the motor control circuit.
Inventors:
HASHIMOTO HIDEYUKI (JP)
KIKUCHI ATSUYUKI (JP)
YAMAZAKI SHINGO (JP)
KANBE KUNIAKI (JP)
ABE SATOSHI (JP)
TANABE DAIJIRO (JP)
OOKUBO TAKAHIRO (JP)
KIKUCHI ATSUYUKI (JP)
YAMAZAKI SHINGO (JP)
KANBE KUNIAKI (JP)
ABE SATOSHI (JP)
TANABE DAIJIRO (JP)
OOKUBO TAKAHIRO (JP)
Application Number:
PCT/JP2014/006326
Publication Date:
June 25, 2015
Filing Date:
December 18, 2014
Export Citation:
Assignee:
HITACHI KOKI KK (JP)
International Classes:
B25F5/00; B25D11/00; B25D17/20
Domestic Patent References:
WO2013122108A1 | 2013-08-22 | |||
WO2013027365A1 | 2013-02-28 |
Foreign References:
EP2103396A1 | 2009-09-23 | |||
JP2011148069A | 2011-08-04 | |||
EP1715565A1 | 2006-10-25 | |||
JP2007331072A | 2007-12-27 |
Attorney, Agent or Firm:
TSUTSUI, Yamato (3F Shinjuku Gyoen Bldg., 3-10, Shinjuku 2-chome, Shinjuku-k, Tokyo 22, JP)
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