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Title:
BRAKE DEVICE FOR CHAIN SAW
Document Type and Number:
Japanese Patent JP3284021
Kind Code:
B2
Abstract:

PURPOSE: To provide a brake device for a chain saw which can stop the rotation of a blade quickly at the time of switch OFF of a motor.
CONSTITUTION: A brake drum 21 is clamped up by a brake band 23 to stop a fan C by operating a hand guard 17 and pulling a front end 23b of the brake band 23 while disposing the brake band 23 in a manner of encircling the brake drum 21. A rear end 23a of the brake band 23 is fixed to a bending rod 41 and also the bending rod 41 is energized backward by a coil spring, and the brake drum 21 is clamped up at all times by the brake band 23 at the time of OFF. A rocking member 51 being in contact with a trigger lever 15 is rocked forward by pushing in the trigger lever 15, by which the bending rod 41 is pressed forward to loosen the brake band 23.


Inventors:
Kazuya Nakamura
Makoto Mizutani
Masaki Kondo
Application Number:
JP8531095A
Publication Date:
May 20, 2002
Filing Date:
April 11, 1995
Export Citation:
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Assignee:
Makita Corporation
International Classes:
B27G19/06; B27B17/08; (IPC1-7): B27G19/06
Domestic Patent References:
JP60127103A
JP5518031U
JP61155103U
Attorney, Agent or Firm:
Tsutomu Adachi