| 摘要 |
PURPOSE:To drive a diaphragm symmetrically inward and outward and prevent generation of distorsion, by placing an equalizer at the center of the diaphragm and supporting inner and outer periphery of the diaphragm by a horn member and a magnetic circuit member through an elastic supporting member respectively. CONSTITUTION:An equalizer 4 is formed to warheadlike shape and inner shape of a throat member 5 is formed after the style of external shape of the equalizer 4. An aperture 26 is provided between the two, and the two are connected by a rib to form a horn member 25. Annular supports 28, 29 are formed to contain an inside elastic supporting member 19 and an outside elastic supporting member 20. The equalizer 4 and the throat member 5 are pressed to stick against a magnetic circuit member 2 by clamping a fixing screw 30. At the same time, the inside elastic supporting member 19 and outside supporting member 20 attached to inner and outer periphery of the diaphragm are put tight to support. |
