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Patent Searching and Data


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)
Application Number:
PCT/JP2014/006326
Publication Date:
June 25, 2015
Filing Date:
December 18, 2014
Export Citation:
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Assignee:
HITACHI KOKI KK (JP)
International Classes:
B25F5/00; B25D11/00; B25D17/20
Domestic Patent References:
WO2013122108A12013-08-22
WO2013027365A12013-02-28
Foreign References:
EP2103396A12009-09-23
JP2011148069A2011-08-04
EP1715565A12006-10-25
JP2007331072A2007-12-27
Attorney, Agent or Firm:
TSUTSUI, Yamato (3F Shinjuku Gyoen Bldg., 3-10, Shinjuku 2-chome, Shinjuku-k, Tokyo 22, JP)
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