| 摘要 |
PROBLEM TO BE SOLVED: To provide a frame structure of a soundproof panel by which a load is hard to pass over the soundproof panel and scatter of members is hard to occur even when the loads from the vehicle collide with the soundproof panel in a traffic accident. SOLUTION: Only one side of confronting frame members is not extremely deformed by giving the substantially the same bending strength with the confronting other side frame member of a rectangular soundproof panel to the one side. When a load dropped from the vehicle collides with the frame, as respective confronting frame members are deformed in the same degree, it is prevented that one side is extremely deformed and the load passes through the soundproof panel. Even when the load is locked by locking member, it is prevented that loads concentrate on the locking member of one frame member side and the locking members are broken or scattered and also the soundproof board is broken. COPYRIGHT: (C)2004,JPO
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