| 摘要 |
PURPOSE:To improve remarkably the linearity of a diaphragm to axial vibration by adopting an elastic body for the type of material of an edge of an electroacoustic transducer and forming the structure as a pipe form made of hollow pipe symmetrically vertically to the diaphragm. CONSTITUTION:The edge 21 is made of an elastic substance as a raw material, and formed as a hollow pipe whose cross section is hollow, and formed as a circular tube symmetrical to the vertical direction at the bonding part between the diaphragm 1 and a frame 31. Then the part of the edge 21 bonded to the diaphragm 1 is cut off, the edge 21 clips the circumference of the diaphragm 1 so as to support it. Moreover, the inner circumference of the frame 31 is formed with a concaved part so that the bonding with the edge 21 is easy and the projected part of the outer circumference of the edge 21 is supported surely. |
