Locking arrangement for two switchgears

Details Locking arrangement for two switchgears Locking arrangement for two switchgears

1988-10-28

1989-11-28

Scott, J. R.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

335161, H01H 920

Patent

active

048839272

ABSTRACT:
The contactors for a pair of switchgears are coupled via a blocking body in such a way that upon activation of one switchgear the other switchgear, which acts upon the blocking body in a sense opposite to that of the first switchgear is blcoked in its activation motion. To this end, each slide that is guided in a guide housing is rigidly connected with a tappet in the direction of motion via the collar of a collar screw which screwed into the slide. Each of the lobes of the heart-shaped blocking body are essentially rigidly connected with one of the tappets via dogs in the direction of motion.

REFERENCES:
patent: 3149210 (1964-09-01), Haydu et al.
patent: 4356363 (1982-10-01), Harbauer et al.
European Search Report No. RS 80683 DE; 10-15-1988.
Siemens, Siemens List NS2; p. 4/69; date: 1987.

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