| 摘要 |
PROBLEM TO BE SOLVED: To improve the manufacturing efficiency of a dynamic electroacoustic transducer. SOLUTION: A frame 20 where a diaphragm 14 is fixed and supported at its outer peripheral edge plane portion 14A is equipped with: a diaphragm mount surface 20b for mounting the outer peripheral edge plane portion 14A; and a step-down surface 20c which is formed adjacently to its outer peripheral side while stepped down below the diaphragm mount surface 20b. Then bonding for the fixation and supporting is carried out by using an adhesive 40 applied over both the diaphragm mount surface 20b and step-down surface 20c. Consequently, even if the adhesive 40 is supplied too much or slightly out of position to carry out the bonding, an excessively supplied adhesive 40 is put and held in the space between the step-down surface 20c and diaphragm 14 to facilitate management of the supply amount and supply position of the adhesive 40. COPYRIGHT: (C)2007,JPO&INPIT
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