Document Type and Number:
Japanese Patent JPS6225484
Kind Code:
B2
Abstract:
An electric motor driven chain saw braking/locking apparatus with which electric current flow to the motor of the saw is halted simultaneously with braking of the motor when a hand guard is tilted forwardly. A belt brake device and a brake switching device are linked with the hand guard, which is pivotably mounted to the housing in front of a front handle, such that the braking force is applied at substantial of the same time that the switch is opened. A brake drum of the brake device is fixed to a motor drive shaft of the motor at a position where it receives cooling air from the motor. A lock mechanism is provided in the hand guard whereby, in an emergency, a braking operation with the hand guard can be easily and quickly performed.
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Inventors:
TAKAHASHI KAZUYUKI
OOE YASUHIRO
YAMAMOTO ETSUSHI
OOE YASUHIRO
YAMAMOTO ETSUSHI
Application Number:
JP23699983A
Publication Date:
June 03, 1987
Filing Date:
December 14, 1983
Export Citation:
Assignee:
RYOBI LTD
International Classes:
B27G19/06; B27B17/08; F16D59/00
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