Limit switch

Details Limit switch Limit switch

1994-11-17

1996-09-03

Walczak, David J.

Electricity: circuit makers and breakers

Limit switch

2003021, 200573, 200293, H01H 316

Patent

active

055525709

ABSTRACT:
In a limit switch, its rotational operation section B includes a rotary shaft 9 which is rotatably supported on a head housing 5, and an actuator 10 for turning the rotary shaft 9, and its switch section C comprises a detector 29 which is built in a switch housing 3, to detect particular detection parts 27a and 27b in a non-contact mode which are provided on the outer cylindrical surface of a cam 25 mounted fixedly on the rotary shaft 9, thereby to provide a detection signal. The head housing 5 and the switch housing 3 are formed as one unit. A limit switch which is simple in construction, has a small number of components in comparison with the conventional limit switch, can be miniaturized, has a long service life, and is reliable in operation, is provided.

REFERENCES:
patent: 3247342 (1966-04-01), Ott et al.
patent: 3364318 (1968-01-01), Bulliet
patent: 3524111 (1970-08-01), Maecker et al.
patent: 4214133 (1980-07-01), Wolford et al.
patent: 5028748 (1991-07-01), Sakamoto
Product Engineering Brochure, Nov. 12, 1962.

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