Method for producing repulsion magnetic circuit and its...

Details Method for producing repulsion magnetic circuit and its... Method for producing repulsion magnetic circuit and its...

2005-05-03

2005-05-03

Barrera, Ramon M. (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Work or object holding type

C029S594000, C029S607000, C029S609100, C269S086000, C269S216000, C269S240000

Reexamination Certificate

active

06888433

ABSTRACT:
The present invention provides a method of manufacture capable of manufacturing a repulsion magnetic circuit for a speaker with good production efficiency and in a stabilized manner and an apparatus for use in the manufacture. A position of abutment between first magnetic block circuit attached to lower jig (102) and second magnetic circuit block attached to upper jig (105) is detected by detection of a load current of servomotor (103). A pressing time for achieving adhesion is established by the number of pulses from encoder directly coupled with servomotor (103).

REFERENCES:
patent: 5701657 (1997-12-01), Sakamoto
patent: 55-97798 (1980-07-01), None
patent: 59-104899 (1984-06-01), None
patent: 7-23498 (1995-01-01), None
patent: 7-264694 (1995-10-01), None
patent: 2000-334358 (2000-12-01), None
patent: 2001-274019 (2001-10-01), None

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