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Patent Searching and Data


Title:
POWER TOOL
Document Type and Number:
WIPO Patent Application WO/2019/064724
Kind Code:
A1
Abstract:
A torque transmission mechanism (5) transmits the torque generated by rotation of a drive shaft (4) to an output shaft (6). A clutch mechanism (8) is provided between a motor (2) and the torque transmission mechanism (5). The torque transmission mechanism (5) comprises a magnet coupling (20) that has a driving magnet member connected to the drive shaft (4) side and a driven magnet member connected to the output shaft side (6). The driving magnet member and the driven magnet member are disposed with magnet faces thereof opposed, each magnet face having an alternating arrangement of S pole and N pole. The clutch mechanism (8) transmits the torque generated by rotation of the drive shaft (4) to the driving magnet member but does not transmit to the drive shaft (4) the torque that the driving magnet member receives from the driven magnet member.

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Inventors:
MIZUNO Mitsumasa
MURUI Itaru
KAJIYAMA Satoshi
MURAKAMI Hiroaki
HONDA Akiko
Application Number:
JP2018/022880
Publication Date:
April 04, 2019
Filing Date:
June 15, 2018
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-k, Osaka-shi Osaka 07, 〒5406207, JP)
International Classes:
B25F5/00; B25B21/00; B25B21/02; F16D7/02; F16D41/10; F16H49/00
Foreign References:
JPS5624562U1981-03-05
JPH09254046A1997-09-30
JP2012245463A2012-12-13
JP2013066946A2013-04-18
JP2006234034A2006-09-07
JP2014211191A2014-11-13
JP2009232616A2009-10-08
JPH0582797U1993-11-09
JP2005140145A2005-06-02
JP2017032007A2017-02-09
US3150725A1964-09-29
JP2006026849A2006-02-02
JPH0460666U1992-05-25
JP2012135844A2012-07-19
Attorney, Agent or Firm:
MUNETA Satoshi (2-11-12, Ebisu-Nishi Shibuya-ku Tokyo, 21, 〒1500021, JP)
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