Adjustable trigger stop

Details Adjustable trigger stop Adjustable trigger stop

1979-11-01

1981-06-30

Shepperd, John W.

Electricity: circuit makers and breakers

Electric switch details

Actuators

200321, 200157, H01H 906

Patent

active

042764610

ABSTRACT:
A portable electric tool speed control switch of the trigger actuated type having an adjustable trigger stop that affords selective setting of the maximum speed point to any one of a multiplicity of speed points. The trigger stop is integrally mounted in the trigger and abuts the switch housing to limit trigger depression. A spring-biased plunger pin (16) extends rearwardly through the trigger head (10) toward the housing and an adjusting knob (20) recessed in and rotatably mounted in the trigger head has a notched helical track (20b) that engages a tooth at the head of the pin so that rotation of the knob adjusts the plunger pin to provide a trigger stop by abutting the housing at the selected point of trigger depression thus setting the speed point of the tool and affording returning repeatedly to the same speed point.

REFERENCES:
patent: 3238797 (1966-03-01), Coughren
patent: 3359810 (1967-12-01), Hansen
patent: 3515832 (1970-06-01), Martin
patent: 3548136 (1970-12-01), Frenzel
patent: 3575560 (1971-04-01), Mayer
patent: 3603757 (1971-09-01), Sahrbacker
patent: 3761663 (1973-09-01), Brown
patent: 4132933 (1979-01-01), Barcz et al.

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