Title:
ELECTRICAL POWER TOOL
Document Type and Number:
WIPO Patent Application WO/2015/079645
Kind Code:
A3
Abstract:
An electrical power tool capable of suppressing increase in a size of a device main body in a radial direction of an electrical motor is provided. A driver 10 which drives a distal end tool 42 with a power of an electrical motor 12 includes: a casing 11 in which the electrical motor 12 is provided; a driven gear 39 and a spindle 40 which are arranged eccentrically with respect to an output shaft 30 of the electrical motor 12 and which transmit power of the output shaft 30 to the distal end tool 42; and a power supply circuit unit 17 arranged inside the casing 11. And, an arrangement region of the driven gear 39 and the spindle 40 and an arrangement region of the power supply circuit unit 17 are at least partially overlapped with each other in a circumferential direction centering the output shaft 30.
Inventors:
KIKUCHI HAJIME (JP)
YOSHINARI TAKUYA (JP)
KOIZUMI TOSHIAKI (JP)
YOSHINARI TAKUYA (JP)
KOIZUMI TOSHIAKI (JP)
Application Number:
PCT/JP2014/005761
Publication Date:
August 20, 2015
Filing Date:
November 17, 2014
Export Citation:
Assignee:
HITACHI KOKI KK (JP)
International Classes:
B25B21/00; B25F5/00; B25F5/02
Domestic Patent References:
| WO2006124288A2 | 2006-11-23 |
Foreign References:
| EP1398865A2 | 2004-03-17 | |||
| EP1932608A1 | 2008-06-18 | |||
| DE4317002A1 | 1994-11-24 | |||
| DE19924552A1 | 2000-11-30 |
Attorney, Agent or Firm:
TSUTSUI, Yamato (3F Shinjuku Gyoen Bldg., 3-10, Shinjuku 2-chome, Shinjuku-k, Tokyo 22, JP)
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