| 摘要 |
PURPOSE:To obviate the necessity of a damping member by providing reinforcement effect and vibration-suppressing effect by forming a reinforcement from a laminated metal plate arranged so as to form a hollow part between a panel surface. CONSTITUTION:When a reinforcement 5 is joined onto the back surface of a panel 6, the reinforcement 5 and the panel surface 6 are arranged, forming a hollow part 3 therebetween. |
