| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that when a damping steel plate is driven into a seam, a damping steel plate on a driving side does not enter the seam because of curving due to a low rigidity of the damping steel plate, and even when the damping steel plate enters the seam, no seam is formed because a damping steel plate on the seam side is opened. <P>SOLUTION: The air conditioning duct using the damping steel plate for supplying air conditioned by an air conditioner to respective rooms is constituted by forming a rectangular frame of four L-shaped angles and two angle flanges and sticking the damping steel plates on the four surfaces of the formed frame, the damping steel plates being fixed to the angles with rivets. <P>COPYRIGHT: (C)2012,JPO&INPIT |
