| 摘要 |
PROBLEM TO BE SOLVED: To provide a hanging fitting structure which suppresses the leakage of noise due to a cooling fan built in a projector 1 to the outside. SOLUTION: The handing fitting body 2 for placing and fixing the projector 1 is provided with ducts 9 and 10, and the inner walls of the ducts 9 and 10 are lined with an acoustic material 3.
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