| 摘要 |
PROBLEM TO BE SOLVED: To enhance a sound-insulating effect of a cabinet rack with a door of double acrylic structure having two forward and backward acrylic plates on the door. SOLUTION: In a door 3 of a cabinet rack for storing an information/telecommunications equipment, an front side acrylic plate 4F is mounted on a rear side of a door frame 11. Also, a frame panel 5 is disposed on a back face of the door frame 11 and a back side acrylic plate 4R is attached on an inner face of the frame panel 5. Thus, sound insulating hollow portion is formed between the forward and backward acrylic plates 4F, 4R while a peripheral wall 5b of the frame panel 5 surrounds the hollow portion. COPYRIGHT: (C)2009,JPO&INPIT
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