Trigger-lock control

Details Trigger-lock control Trigger-lock control

1974-11-01

1976-07-27

Rubinson, Gene Z.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200321, H01H 320

Patent

active

039719065

ABSTRACT:
A trigger-lock control for a motor switch of a power tool is presented including a trigger attached to a rigidly connected elongated slide portion which reciprocates in a housing containing switch components arranged longitudinally in a "power-on" and "power-off" arrangement so that the slide portion can selectively operate these contacts when it is reciprocated by motion of the trigger. A spring urges the trigger and slide portion normally to a power-off position and locking means is provided to lock the elongated slide portion in the power-off position by providing an oscillating lever having a downwardly extending point at its free end which enters into an upwardly opening recess in the upper wall of the slide portion when the parts are in the power-off position. The lever is pivoted on a horizontal pivot on the top of the housing and joined to the lever is either a thumb piece or a lever adapted to be easily operated by a hand of the operator holding the tool.

REFERENCES:
patent: 3329842 (1967-07-01), Brown
patent: 3383943 (1968-05-01), Piber
patent: 3536973 (1970-10-01), Matthews et al.
patent: 3873796 (1975-03-01), Worobec

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