Electromotive chain saw

Details Electromotive chain saw Electromotive chain saw

1996-08-20

1998-08-11

Rachoba, M.

Cutlery

Cutting tools

Saw

30382, 83DIG1, B27B 1700

Patent

active

057910570

ABSTRACT:
The chain of an electromotive chain saw is quickly stopped by the combined use of an electric brake and a mechanical brake when a trigger member is turned off. The rear end of a brake band disposed to tighten a brake drum by operating a hand guard is secured to a bent rod. When the trigger member is released, the brake band is normally tightened around the outer periphery of a brake drum by the urging force of a coil spring. When the trigger member is released, a circuit provided with a brake winding is closed, thereby applying a dynamic braking force. When the dynamic brake force is applied, a centrifugal clutch is released quickly and the speed of stopping the brake drum is accelerated.

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