Flat vibration generating apparatus

Details Flat vibration generating apparatus Flat vibration generating apparatus

1995-09-13

1998-08-11

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 40MM, 310193, 310179, 310198, 310237, 310268, 310208, H02K 7075

Patent

active

057931330

ABSTRACT:
A flat vibration generating apparatus wherein a flat coreless eccentric vibrator armature generates an eccentric vibration desired from the aspect of body feel. An air-core armature coil group thereof consists of m pieces (where m is an integer of 3 or more) of armature coils disposed in superposition with one another in m phases in an arrangement such that they are eccentric and with their phases deviated in a circumferential direction, and that they do not describe a complete disc-like shape as viewed from the axial direction.

REFERENCES:
patent: 4568847 (1986-02-01), Schmider
patent: 4583016 (1986-04-01), Ban et al.
patent: 4864276 (1989-09-01), Tribbey et al.
patent: 5036239 (1991-07-01), Yamaguchi

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