Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Patent
1990-03-16
1991-01-08
Picard, Leo P.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Multiple contact type
335131, H01H 6702
Patent
active
049839403
ABSTRACT:
An electromagnetic switch comprises an outer casing, a cylindrical bobbin which is arranged in the outer casing, which has a magnetic core and which has an exciting coil wound thereon, a plunger arranged in an inner passage of the bobbin so as to be slidable under the action of magnetic attraction force, a rod which moves associating with the plunger, a movable contact which is carried on the rod, and which gets in contact with a fixed contact when the plunger moves in one direction, the fixed contact being arranged at a predetermined position, a cutout formed in an outer peripheral portion of the core, a channel-like lead-out portion which is formed to project from one end of the bobbin in the axial direction, which is fit in the cutout, and which is open in a radial direction outwardly, a mounting opening formed in the outer casing to confront to the cutout, and a terminal member which is press-fit into the mounting opening and which includes a terminal plate connected in the lead-out portion to one of the opposite leads of the exciting coil.
REFERENCES:
patent: 4800766 (1984-07-01), Isozumi
patent: 4852417 (1989-08-01), Tanaka
patent: 4890085 (1989-12-01), Saito et al.
Donovan Lincoln
Mitsubishi Denki & Kabushiki Kaisha
Picard Leo P.
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