| 摘要 |
A bi-layered one-dimensional loud speaker is provided to remove a seam on a diaphragm plane by using a single diaphragm as a vibration body. In constructing two bobbins(a-2,a-3) in a single diaphragm extended by a tensile body, a point of zero displacement in elastic deformation toward a vertical direction on the plane of the diaphragm is set as restposition in a bobbin to be bonded to the center. The bobbin except the bobbin to be bonded to the center is connected to the tensile body connected to a damper(a-5), and an extended single film is vibrated by two bobbins connected with each other. |
