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Patent Searching and Data


Title:
FLAT-TYPE CORELESS VIBRATING MOTOR
Document Type and Number:
Japanese Patent JPH11168857
Kind Code:
A
Abstract:

To prolong the life of a vibrating motor, and to cause it to generate favorable vibrational sounds.

In this vibrational motor, a shaft 3 is fixed to one end of its body 2, and a rotor which is a flat-type coreless eccentrically-vibrating armature 4-1 which rotates eccentrically and is supported freely rotatably is made to face its surface opposite to field magnets 1 with an axial gap between, and a commutator 9 connected electrically to an armature coil, constituting the flat-type coreless eccentrically vibrating armature 4-1, is provided so as to be freely slidable on brushes 8-1, 8-2. At this time, the flat-type coreless eccentrically vibrating armature 4-1 is molded with plastic, and the axial end surface of a projection 26 formed by projecting the plastic on the peripheral part of the shaft 3 in the direction of the other end of the motor body 2 is slid and brought into contact with the other end side of the motor body 2, and is used as a thrust bearing.


Inventors:
SHIRAKI MANABU
MIYAO OSAMI
Application Number:
JP34699597A
Publication Date:
June 22, 1999
Filing Date:
December 02, 1997
Export Citation:
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Assignee:
SHICOH ENG CO LTD
International Classes:
H02K7/065; H02K7/08; (IPC1-7): H02K7/065; H02K7/08