Electricity: circuit makers and breakers – Electric switch details – Actuators
Patent
1975-05-28
1976-10-26
Tolin, Gerald P.
Electricity: circuit makers and breakers
Electric switch details
Actuators
403122, 74473P, 200339, H01H 306
Patent
active
039885585
ABSTRACT:
A toggle lever for operating an electric switch and easily assembled, anti-rotation means for mounting the lever for limited pivotal movement within the mounting bushing of the switch. The toggle lever has an intermediate enlarged spherical portion including two short trunnions extending in opposite directions therefrom. The mounting means comprises a pair of interlocking semi-cylindrical molded insert halves having on their inner surfaces an annular socket for the spherical portion and each having a central hole to journal the corresponding trunnion when the two halves are placed therearound to form a subassembly. The cylindrical outer surface of these molded insert halves has a first part of detent means such as circumferentially arranged tapered protuberances that "cam" down through the bore in the bushing and engage a complementary part of such detent means such as an annular groove within the bushing into which these protuberances snap in when the subassembly is pressed down thereinto thereby to mount the toggle lever for limited pivotal movement on its trunnions while the inserts close the space around its spherical portion in the bore and frictionally adhere to the bushing with an interference fit to keep the toggle lever from turning on its axis. Other anti-rotation detent means are disclosed.
REFERENCES:
patent: 2726105 (1955-12-01), Koenig
patent: 2759075 (1956-08-01), Hults
patent: 3482465 (1968-01-01), Lusted
patent: 3722931 (1973-03-01), Uchida
Johnson, Jr. James V.
Josemans Leonardus J.
Autio William A.
Cutler-Hammer, Inc.
Rather Hugh R.
Taken Michael E.
Tolin Gerald P.
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