Title:
METHOD OF ASSEMBLY OF VOICE COIL
Document Type and Number:
Japanese Patent JPH05284716
Kind Code:
A
Abstract:
PURPOSE: To provide the method of assembly of a voice coil motor which has good productivity and high quality and does not produce fine magnetic powder at all.
CONSTITUTION: A quenched and mirror-surface-polished pressing attachment 11 is attached to the tip of a punch 5 and the punch 5 is pressed toward the pressing direction 7 to crush the center core 9 of a pillar 2F to form a spread 10 produced by calking.
Inventors:
Yoichi Akakami
Kazuhiko Dei
Kazuhiko Dei
Application Number:
JP10164492A
Publication Date:
October 29, 1993
Filing Date:
March 27, 1992
Export Citation:
Assignee:
Tokin Co., Ltd.
International Classes:
H02K15/04; H02K33/18; (IPC1-7): H02K33/18; H02K15/04