Being the sound arrester which is installed on top of the soundproof wall

摘要

PROBLEM TO BE SOLVED: To prevent dust or the like from dropping through the upper opening of a sound insulation device and also prevent deterioration of sound reducing function and corrosion of members constituting the device and further, prevent obstruction of sunshine or improve visibility.;SOLUTION: The sound insulation device 3 can be installed on a soundproof wall body 2 erected upright and constituted of a case body 31 opened upward and partition members 32a, 32b dividing the inside. A sound absorptive member 4 is fitted to the opening so as to cover the inside and cover the space formed by the case body 31 and the partition members 32a, 32b.;COPYRIGHT: (C)2002,JPO