SOUND PASSING MEMBER UTILIZING WATERPROOF SOUND PASSING MEMBRANE AND PROCESS FOR MANUFACTURING THE SAME

摘要

The sound-permeable member (18) includes a waterproof sound-permeable membrane (1) that allows sound to pass therethrough and blocks liquid from passing therethrough and a main body (8) having an opening (8p) for passing sound. The opening (8p) is closed by the waterproof sound-permeable membrane (1). The waterproof sound-permeable membrane (1) is fixed to the main body (8) in a slack state. A polytetrafluoroethylene porous membrane and a porous ultrahigh-molecular weight polyethylene membrane preferably can be used as the waterproof sound-permeable membrane (1).