Title:
POWER-DRIVEN TOOL
Document Type and Number:
WIPO Patent Application WO/2018/100940
Kind Code:
A1
Abstract:
Provided is a power-driven tool wherein components contained in a gear case are easily cooled. A power-driven tool 1 has: a motor 6; a fan 7 rotated by the motor 6 to generate a flow of cooling air; a housing 42, 44, 45 containing the motor 6 and the fan 7 and defining an air flow passage P for the flow of cooling air; an output shaft 43 to which a front end tool 41 can be removably mounted and which is rotated by the motor 6; and a transmission mechanism 5 for transmitting the rotational output of the motor 6 to the output shaft 43. The transmission mechanism 5 has a rotating member 51 rotating with the output shaft 43, and the rotating member 51 is disposed within the air flow passage P.
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Inventors:
TOYOSHIMA YUUICHI (JP)
KUMAKURA TAKERU (JP)
SEKINE YOSHITAKA (JP)
KUMAKURA TAKERU (JP)
SEKINE YOSHITAKA (JP)
Application Number:
PCT/JP2017/038896
Publication Date:
June 07, 2018
Filing Date:
October 27, 2017
Export Citation:
Assignee:
HITACHI KOKI KK (JP)
International Classes:
B23D59/02; B23D47/12; B23D45/04; B24B21/18; B27B5/20
Domestic Patent References:
| WO2016158129A1 | 2016-10-06 |
Foreign References:
| JP2015221540A | 2015-12-10 | |||
| JPH08336803A | 1996-12-24 | |||
| JPS6076913A | 1985-05-01 | |||
| JP2014104547A | 2014-06-09 |
Other References:
See also references of EP 3549704A4
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