| 摘要 |
PROBLEM TO BE SOLVED: To realize a manufacturing method of a diaphragm free of deformation in a state of being returned to room temperature, with respect to a manufacturing method of a diaphragm for a speaker used for various video apparatuses and various sound apparatuses. SOLUTION: The manufacturing method of the diaphragm for the speaker includes a stage of molding a resin film, and a heating and pressurizing coupling stage of performing shape formation in the opposite direction from the direction of deformation in the state of being turned to the room temperature during heating and pressuring formation of the resin film and a voice coil so as to prevent the diaphragm from deforming owing to a difference in thermal shrinkage between the molded resin film and the voice coil. Namely, while the amount of deformation of the coupling body of the resin film and voice coil as the diaphragm when the coupling body is taken out of a tool and put back to room temperature is previously taken into consideration, the coupling body is formed into a shape by being deformed in the direction reverse to the deformation. COPYRIGHT: (C)2009,JPO&INPIT
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