SPEAKER DIAPHRAGM

• Main Authors: SANO TSUNENORI, NAKAJIMA HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 20.08.2020
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

To provide a speaker diaphragm that can generate sounds in multiple frequency bands with a single diaphragm.SOLUTION: A speaker diaphragm 1 includes a first lamination region R1 having a first number of layers and a second lamination layer R2 that is adjacent to the first lamination region R1 at the radial outside of the first lamination region R1 and has a second number of layers different from the first number of layers. By varying an average density according to the lamination regions having different numbers of layers (that is, the lamination regions having different numbers of layers and the regions having different average densities have a one-to-one correspondence), the average density in a plane direction, and thus the rigidity in the plane direction can be easily changed.SELECTED DRAWING: Figure 2 【課題】単一の振動板で複数の周波数帯域の音を発生することができるスピーカー振動板を提供する。【解決手段】スピーカー振動板１は、第１の層数を有する第１積層領域Ｒ１と、この第１積層領域Ｒ１の径方向外側に隣接し、第１の層数とは異なる第２の層数を有する第２積層領域Ｒ２とを有する。積層数の異なる積層領域に対応して平均密度を異ならせることで（つまり、積層数の異なる積層領域と平均密度の異なる領域とが１対１で対応していることで）、面方向の平均密度、ひいては面方向の剛性を容易に変化させることができる。【選択図】図２