Electricity: circuit makers and breakers – Switch activation inhibitor – Actuator blocking device
Patent
1996-06-10
1997-06-17
Walczak, David J.
Electricity: circuit makers and breakers
Switch activation inhibitor
Actuator blocking device
2003181, 200321, 200 4316, H01H 928
Patent
active
056389450
ABSTRACT:
A trigger mechanism for a portable electric power tool which can be selectively oriented in one of three states being a Locked-off, an On, and a Locked-on state. The trigger mechanism includes a trigger having a first latch portion and an actuator for actuating a switch for energizing a motor, a lock button having a second latch portion, a latch return spring, and a lock button return spring. The trigger is shiftable longitudinally between a Trigger-off and a Trigger-on position, while the lock button is shiftable transversely between a Button-off and a Button-on position. When the trigger mechanism is in the Locked-off state, the lock button is in the Button-off position preventing the trigger from moving from the Trigger-off position. When the trigger mechanism is in the On state, the lock button has been shifted to the Button-on position so that the trigger is shiftable to the Trigger-on position thereby actuating the switch. When the trigger mechanism is in the Locked-on state, the operator positions the first latch portion so that by releasing the trigger while in the On state the first and second latch portions engage.
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Sketch of Black & Decker Hedge Trimmer Lock-on/Lock-off Actuator -No Date.
1996 Black & Decker Outdoor Products Catalog
Demarco Stephen M.
Fukinuki Masatoshi
Watson James B.
Ryobi North America Inc.
Walczak David J.
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