| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamic microphone wherein lead wires of a voice coil are not broken even when a diaphragm is pushed toward a magnetism generating circuit under a strong sound pressure with a simple configuration. SOLUTION: The dynamic microphone comprises: the diaphragm 11 whose voice coil 12 is fitted to a border between a center dome 11a and a sub dome 11; and the magnetism generating circuit 20 including a pole piece 22 provided on one pole of a permanent magnet 21 and a ring yoke 24 provided on the other pole and having a magnetic gap between them, wherein the voice coil 12 is vibratingly supported in the magnetic gap via the diaphragm 11 and the lead wires 12a of the voice coil 12 are wired along the inner face of the sub dome 11b. Lead end parts 12b of the lead wires 12a are elastically supported on the sub dome 11b side via an elastic layer which covers the inner face of the sub dome 11b adjacent at least to the voice coil 12. COPYRIGHT: (C)2006,JPO&NCIPI
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