Brush-shifting and trigger-switch arrangements for a portable to

Details Brush-shifting and trigger-switch arrangements for a portable to Brush-shifting and trigger-switch arrangements for a portable to

1981-01-29

1982-08-03

Miller, J. D.

Electrical generator or motor structure

Dynamoelectric

Rotary

310230, 200 50C, 173 48, B23B 4502, H02K 714

Patent

active

043429319

ABSTRACT:
A portable electric tool with a housing having a motor compartment and a pistol grip handle is provided with a trigger-switch, incorporating a motor reversing switch, mounted in the handle. An elongated lever is pivoted intermediate its length and contained within the housing. The rear end of the lever is connected to the reversing switch for actuation thereof. The forward end of the lever has a downwardly projecting protrusion which engages in a slide member which is slidable along an arcuate slot in the lower wall of the motor compartment for pivoting the lever. Intermediate the forward end of the lever and the pivotal axis of the lever is a downwardly projecting pin which coacts with a partition and two grooves in the upper part of the trigger-switch to block the movement of the trigger until the lever has been pivoted to actuate the reversing switch, and also to prevent pivoting of the lever while the trigger is in an inward position energizing the tool. A brush-board assembly is rotatably mounted in bearings extending inwardly from the wall of the motor compartment. The lever has adjacent its forward end an upwardly extending forked arm which engages a stud on the brush-board assembly to effect rotation thereof when the lever is pivoted.

REFERENCES:
patent: 2764705 (1956-09-01), Albertson et al.
patent: 3440465 (1969-04-01), Pratt et al.
patent: 4204580 (1980-05-01), Nalley

Affiliated with

Also associated with

Rating

Brush-shifting and trigger-switch arrangements for a portable to does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Brush-shifting and trigger-switch arrangements for a portable to, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brush-shifting and trigger-switch arrangements for a portable to will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1469701