Cam roll pin assembly

Details Cam roll pin assembly Cam roll pin assembly

1988-08-01

1989-12-12

Broome, H.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Contact-actuating means

200574, 335 6, H01H 300, H01H 7500, H01H 7700

Patent

active

048870579

ABSTRACT:
A cam roll pin assembly includes a cylindrical portion having an extending axle at each end for receiving a small roller and a relatively larger roller. The smaller roller is provided for engaging the cam surface on the contact assembly. The larger roller is received within a slot. Retaining rings are used to secure rollers on the axles. With such an arrangement the rollers are able to rotate independently. Thus, during a blow open condition, the contact points of the cam roll pin assembly can rotate in opposite directions without causing relatively large frictional forces on the cam roll pin which can slow down the blow open speed.

REFERENCES:
patent: 4489295 (1984-12-01), Altenhof, Jr. et al.
patent: 4638277 (1987-01-01), Thomas et al.
patent: 4656444 (1987-04-01), McKee et al.
patent: 4679018 (1987-07-01), McKee et al.
patent: 4713640 (1987-12-01), Murphy et al.

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