Auxiliary rotary actuator for a standard plunger operated device

Details Auxiliary rotary actuator for a standard plunger operated device Auxiliary rotary actuator for a standard plunger operated device

1987-01-05

1988-05-24

Staab, Lawrence

Machine element or mechanism

Mechanical movements

Reciprocating to or from oscillating

74567, F16H 2518, F16H 5300

Patent

active

047458208

ABSTRACT:
In combination with a plunger operated device such as a standard pushbutton limit switch (2), an auxiliary rotary actuator (4) having an operating arm (36) attached to a rotary cam(40) having a convex conical cam surface (40c) in contact with a complementary concave conical cam surface (42a) of a reciprocating linear motion cam follower (42), with the cone axes (40d, 42c) being in alignment and offset from the axis of rotation (40e) of the cam. A switch plunger (12) abutting shaft (38) is threaded in a bore (42b) in the cam follower (42) and has a smooth round shaft portion (38b) slidingly guided in a smooth bore (40b) in the cam to be adjustable up or down by a screwdriver slot (38c) in its upper end accessible when the actuating arm (36) mounting screw (46) is removed. An internal thread (24f) whithin the lower end portion (24a) of the auxiliary rotary actuator housing (24) receives the threaded bushing (8) of the plunger operated switch (2) and a set screw (34) turned into the bushing keyway locks it in place.

REFERENCES:
patent: 25599 (1959-09-01), Wood
patent: 675020 (1901-05-01), Schmick
patent: 933718 (1909-09-01), Mahoney
patent: 2062593 (1936-12-01), McCloud
patent: 2196416 (1940-04-01), Jacob
patent: 2621614 (1952-12-01), Walling
patent: 2936652 (1960-05-01), Gunzner
patent: 3142187 (1964-07-01), Kane et al.
patent: 3260131 (1966-07-01), Miles
patent: 3688593 (1972-09-01), Ustin

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