Title:
SPEAKER AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP3427263
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a speaker where a magnetic circuit is assembled without using a gap gauge, it is disassembled as required, and magnetic circuits are reused and/or separately disposed.
SOLUTION: A guide ring 3 is provided on a bottom plate 2 around a center pole 21, around which a magnet 4 is provided. A plurality of guide pins 33 protruding from the guide ring 3 are inserted into a guide hole of a top plate 5 so that the top plate 5 is fixed on the magnet 4. An alignment protrusion 52 protruding above it is inserted into a hole formed at a bottom part 7a inside a frame 7 to form a magnetic circuit. A protrusion 34 provided at a tip of the guide pin 33 is inserted into a hole formed at the bottom 7a inside the frame so that the tips of protrusions 34 protruding on the bottom inside the frame are flattened to integrate the frame 7 with the magnetic circuit.
Inventors:
Kato Kazuma
Application Number:
JP2000195762A
Publication Date:
July 14, 2003
Filing Date:
June 29, 2000
Export Citation:
Assignee:
Minebea Co., Ltd.
International Classes:
H04R9/02; H04R31/00; (IPC1-7): H04R9/02; H04R31/00
Domestic Patent References:
| JP6273696U | ||||
| JP6347698U | ||||
| JP591098U | ||||
| JP5233857Y1 |
Attorney, Agent or Firm:
Masahiro Koda
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