Electromagnetic actuator

Details Electromagnetic actuator Electromagnetic actuator

1997-01-13

1998-10-27

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Reciprocating

310 14, 310 17, 310 41, H02K 3302

Patent

active

058281444

ABSTRACT:
An electromagnetic actuator includes a housing made of a magnetic material, a coil disposed in the housing, a stationary core surrounded by the coil and secured to the housing, a movable core adapted to be attracted to the stationary core by excitation of the coil, a return spring for biasing the movable core away from the stationary core, and a joint member coupled to an outer end of the movable core. In this electromagnetic actuator, a cylindrical portion of the joint member made of a synthetic resin is coupled by press-fit to an outer peripheral surface of the movable core at its end, with a resilient locking claw formed on the cylindrical portion being engaged into an annular groove around the outer periphery of the movable core. Thus, the joint member of the movable core can be reliably coupled without use of a coupling member such as a pin or the like.

REFERENCES:
patent: 2356577 (1944-04-01), Fuscaldo
patent: 2873326 (1959-02-01), Kurtis
patent: 3509505 (1970-04-01), Zagrzjiewski
patent: 3693033 (1972-09-01), Troesh

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