Title:
WORKING TOOL
Document Type and Number:
Japanese Patent JP2019005843
Kind Code:
A
Abstract:
To provide a technique for properly stopping rotation of a tip tool after stopping of motor driving in a working tool rotation-driving the tip tool.SOLUTION: In a working tool, a grinder is equipped with: a motor 2; a tool mounting part capable of detachably attaching a tip tool; a brake shaft 4 rotating together with the tool mounting part by motivity of the motor 2; a brake sleeve 55 capable of transmitting torque between the sleeve and the brake shaft 4 in such a state that a relative rotation to the brake shaft 4 is allowed; a switch for driving the motor 2; a trigger 181; and a lock mechanism 6. The brake sleeve 55 rotates together with the brake shaft 4 by a torque transmission action when the trigger 181 is moved from off-position to on-position and rotation is allowed by the lock mechanism 6 and besides, imparts a brake force to the brake shaft 4 by the torque transmission action when the trigger 181 is moved from the on-position to the off-position to be locked unrotatably by the lock mechanism 6.SELECTED DRAWING: Figure 4
Inventors:
IKUTA HIRONORI
Application Number:
JP2017123293A
Publication Date:
January 17, 2019
Filing Date:
June 23, 2017
Export Citation:
Assignee:
MAKITA CORP
International Classes:
B24B23/00; B25F5/00
Attorney, Agent or Firm:
Tetsuyuki Iwata
Toshiyuki Ikeda
Fujita Yumiko
Toshiyuki Ikeda
Fujita Yumiko