| 摘要 |
PURPOSE:To reject the abnormal tone due to back pressure of speaker, by inserting the buffer member in the constituting member of cabinet and inserting the buffer material between the bonding members. CONSTITUTION:The buffer member 10 is inserted at the joint of the cell plate 6 and the buffle plate 4 or back plate 5. In this case, as the buffer member 10, the substance greater in the internal loss and less in the time aging, such as synthetic rubber and synthetic resin is used. Further, in jointing, the groove 11 is provided at the joints of the cell plate 6, a part of the buffer member 10 is inserted in the groove 11, and the buffer member 10 is inserted between the joints. Further, in this case, it is desirable not to use the adhesives for the part where the buffer member 10 is used. |
