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Patent Searching and Data


Title:
電動工具
Document Type and Number:
Japanese Patent JP6380823
Kind Code:
B2
Abstract:
To provide a power tool configured to stably rotate an end tool, the power tool includes a brushless motor (1) including a rotor (1A) configured to rotate; a rectifier circuit (71) configured to rectify an AC voltage; a smoothing capacitor (721) configured to smooth the AC voltage rectified by the rectifier circuit to a pulsating voltage; an inverter circuit (73) configured to perform switching operations to output the pulsating voltage to the brushless motor; a deceleration mechanism (9) including: a driving portion (94) at a rotor side, a driven portion (92, 95) configured to transmit a rotating force to an end tool side, and an elastic member (13) configured to transmit a rotational force of the driving portion to the driven portion, the deceleration mechanism configured to decelerate a speed of a rotation of the rotor and configured to transmit the rotation to an end tool.

Inventors:
Ken Kumakura
Shinji Kuragano
Application Number:
JP2017509404A
Publication Date:
August 29, 2018
Filing Date:
February 26, 2016
Export Citation:
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Assignee:
Koki Holdings Co., Ltd.
International Classes:
B25F5/00; B23D45/16; B23D47/12; B27B9/00
Domestic Patent References:
JP2012196725A
JP5986444A
JP2009130966A
JP2007275999A
Foreign References:
WO2009151059A1
Attorney, Agent or Firm:
Kazuhiro Kitazawa
Shin Koizumi
Fukumoto Teppei
Castle castle
Yoshie Kim