To improve the function by blocking the side surface of a facing plate having an irregular sectional profile by an end stopping plate, and placing bead concrete in the space formed by the facing plate and the end stopping plate.
The side surface of a facing plate 11 having an irregular sectional profile is blocked by an end stopping plate 12, and very lightweight bead concrete 13 having foamed polystyrene bead as aggregate is placed in the space formed by the facing plate 11 and the end stopping plate 12. At this time, a bar-like reinforcing metal fitting is preliminarily arranged in the space formed by the facing plate 11 and the end stopping plate 12 toward the direction orthogonal to the longitudinal direction of the facing plate 11 to reinforce the adhesive force between the bead concrete 13 and the facing plate 11 and also reinforce the whole body of the sound insulating panel. As occasion demands, a stainless round bar having the same effect as the reinforcing metal fitting is arranged toward the longitudinal direction of the facing plate 11 and fixed to the reinforcing metal fitting by a wire. According to this, the weight can be reduced, the workalility of the panel setting work can be improved, excellent strength, durability, sound insulating property and sound absorbing property can be ensured, and the production cost can be reduced.
| JP4743678 | Sound absorbing panel |
| JP2008111294 | SOUNDPROOF DEVICE |
NISHIYAMA YOSHINOBU
TANAKA MASAYUKI
KAJITANI YASUHISA
KFC LTD