| 摘要 |
PROBLEM TO BE SOLVED: To provide a speaker capable of preventing deformation of a voice coil bobbin by preventing contact of the voice coil bobbin with a york, etc. SOLUTION: The speaker 1 has a vibration part 6, a magnetic circuit part 7, a case 4 and a regulation member 5. The vibration part 6 has a diaphragm 10, a damper 11 and the voice coil bobbin 9 to which a voice coil 8 is attached. The magnetic circuit part 7 has a magnet 16 and a york 15 to which the magnet 16 is attached and which faces one end part 9a along an axial core P. The case 4 is arranged between the damper 11 and the magnet 16 and faces the damper 11 along the axial core P. The regulation member 5 projects toward the damper 11 from an inner peripheral part 4a of the case 4. The regulation member 5 contacts the damper 11 and regulates that the end part 9a contacts the york 15 even if the end part 9a contacts the york 15. COPYRIGHT: (C)2006,JPO&NCIPI
|
