| 摘要 |
PURPOSE:To generate the characteristic frequency in the small conic body that each small conic body itself plays the role of each trumpet, by composing of the integration of many small hollow conic bodies for flat diaphragm, and arranging the peripheral walls of each small conic bodies in a symplectic way against the board face direction of the diaphragm. CONSTITUTION:A flat diaphragm is constituted by a plate form substrate A by the coupling of many hollow square conic bodies 1, 1, 1 ... Then, these hollow square conic bodies have a shape cutting each bottom 2, 2, 2 ..., put in order placing each top 3, 3, 3 ... on the same plane, has a shape to joint each 4 sides constituting the bottom to each sides of the adjacent hollow square conic bodies, and these are molded by the sheet materials. Then, these hollow conical material have a shape cutting each bottom 5, 5, 5 ... similarly, each top 6, 6, 6 ... is put in order by locating on the same plane, and, are of shape mutually jointed with each peripheral edge of the hollow conical materials adjacent to each peripheral edge constituting the bottom, and these are also molded from 1 sheet-shaped material. |
