Title:
METHOD FOR PRODUCING REPULSION MAGNETIC CIRCUIT AND ITS PRODUCTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2003/105526
Kind Code:
A1
Abstract:
A method for producing the repulsion magnetic circuit of a speaker stably with high production efficiency, and a production system for use therein. Abutting position of a first magnetic circuit block fixed to a lower die (102), against a second magnetic circuit block fixed to an upper die (105) is detected by detecting the load current of a servo motor (103). The pressing time for bonding is set by the number of pulses of an encoder connected directly with the servo motor (103).
Inventors:
HAMAGUCHI RYOI (JP)
WADA HIROSHI (JP)
WADA HIROSHI (JP)
Application Number:
PCT/JP2003/007114
Publication Date:
December 18, 2003
Filing Date:
June 05, 2003
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
HAMAGUCHI RYOI (JP)
WADA HIROSHI (JP)
HAMAGUCHI RYOI (JP)
WADA HIROSHI (JP)
International Classes:
H04R9/02; H04R31/00; (IPC1-7): H04R9/02; H04R31/00
Foreign References:
| JPH0723498A | 1995-01-24 | |||
| JPS59104899A | 1984-06-16 | |||
| JP2000334358A | 2000-12-05 | |||
| JPH07264694A | 1995-10-13 | |||
| JPS5597798A | 1980-07-25 | |||
| JP2001274019A | 2001-10-05 |
Attorney, Agent or Firm:
Iwahashi, Fumio c/o Matsushita Electric Industrial Co. Ltd. (1006, Oaza Kadom, Kadoma-shi Osaka, JP)
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