| 摘要 |
PURPOSE: To enhance a radio wave shield effect and restrain reduction in the effect due to deformation by eliminating a slit or a groove from the bent piece of a door as radio wave shield measures for the restraint of deformation. CONSTITUTION: A plate material is provided with square holes 6 for inserting a mold to form bent pieces 5, and subjected to pressing and bending processes, thereby forming a radio wave shield device. According to this construction, the bent pieces 5 as important elements for a radio wave shield and regularly arranged, do not need to have a slit or a groove otherwise required at the time of machining, and the radio wave shield effect can be enhanced. Also, reduction in strength can be eliminated, and the deformation of the pieces 5 can be restrained, thereby preventing reduction in the shield effect.
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