Electromagnetic coupling device

Details Electromagnetic coupling device Electromagnetic coupling device

1990-12-11

1991-07-30

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335220, 335289, 310103, 192 84C, H01H 708, H01H 714, F16D 1900

Patent

active

050363689

ABSTRACT:
An electromagnetic coupling device is proposed to obviate drawbacks in the conventional coupling devices, namely, expensive production cost brought about by such step as caulking with rivet or by screw setting in making armature and spring assembly. The proposed electromagnetic coupling devices uses an armature and spring assembly which composed of a ring shaped flat spring formed with a plurality of axially extending protrusions instead of a leaf spring, and an armature having a radially extending projections for effecting spring action to the armature. The ring shaped flat spring in the modified armature/spring assembly can be fabricated with less procuction cost and can be readily fitted to to the armature with less man hours, thereby the production cost can be remarkably reduced.

REFERENCES:
patent: 2982385 (1961-05-01), Gamundi
patent: 4432446 (1984-02-01), Okano et al.

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