Safety cut-off system for use in walk-behind power tool

Details Safety cut-off system for use in walk-behind power tool Safety cut-off system for use in walk-behind power tool

1998-06-30

2000-08-22

Will, Thomas B.

Harvesters

Motorized harvester

With randomly-operative control of motor

56 112, 180 193, 422199, 37245, A01D 6908

Patent

active

061053481

ABSTRACT:
A safety cut-off system prevents the running of a motor of a self-propelled lawn mower having left and right drive wheels, and forward and reverse gears. The safety cut-off system includes a first forward presence lever manipulatable, by an operator, between an ON state and an OFF state, wherein the forward presence lever is biased to the OFF state, and a reverse presence lever manipulatable, by an operator, between an ON state and an OFF state, wherein the reverse presence lever is also biased to the OFF state. A preventing element, which is responsive to the forward and reverse presence levers, is provided for preventing the motor from running, when the lawn mower is in neutral or a forward gear and neither the forward presence lever nor the reverse presence lever are in the ON state, and when the lawn mower is in a reverse gear and the reverse presence lever is not in the ON state.

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