Exciter for generating vibration in a pager

Details Exciter for generating vibration in a pager Exciter for generating vibration in a pager

1996-03-21

1997-09-16

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 40MM, 310 80, 310 89, 310156, 3403111, 3404071, 34082544, H02K 7065, G08B 522

Patent

active

056684231

ABSTRACT:
Disclosed is an exciter for generating physical vibration in response to the applied electric signal. In this device, a driving coil is attached to the periphery of an inner guide of a lower housing, and a rotor of permanent magnet is provided in the rotor-receiving space of the inner guide, both ends of the rotor being rotatably supported to the inner guide. An upper housing is engaged with the lower housing in such a manner that the upper housing surrounds the driving coil. In this device, the rotation shaft of the rotor is on a shifted state with respect to a center of a gravity of the rotor, by which means the exciter generates vibration through the upper and lower housings when the rotor rotates by the electromagnetic force of the driving coil.

REFERENCES:
patent: 5175459 (1992-12-01), Danial et al.
patent: 5341057 (1994-08-01), Yamaguchi et al.
patent: 5448117 (1995-09-01), Elliott
patent: 5528697 (1996-06-01), Saito

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