| 摘要 |
PURPOSE:To omit a packing for sealing and lower manufacturing cost by forming the outer periphery of the edge of a speaker unit thick with forming material, and bringing the part into close contact with a part of cabinet. CONSTITUTION:The edge 1 formed in a body by a foaming material is fixed to a frame through wedge paper 2. By forming the part 1b of the outer periphery of the edge 1 to be fixed to a frame 5 thick, the part 1b acts as a packing to seal between a cabinet 4 and the frame 5 and prevents leaking of air. Thus, a packing for sealing so far used becomes unnecessary. Number of parts is reduced and man-hour for assembling is also lessened. |
