专利名称：Loudspeaker device发明人：Saiki, Shuji申请号：EP04013339.9申请日：20040607公开号：EP1487235A3公开日：20080716
专利附图：
摘要：In a loudspeaker device of the present invention, an interior space of a cabinet20 is parted into first and second chambers Wb1 and Wb2, a diaphragm 23 on which ring-shaped magnetic boards 29a and 29b are fixed is attached to a parting board 22 via anedge portion 24, and ring-shaped fixed magnets 25 and 27 are provided so as to face
magnetic boards 29a and 29b, respectively. Vibration of the diaphragm 23 vibrated bysound pressure from a speaker unit 21 is intensified by forces of attraction of themagnets 25 and 27 in order to reduce an acoustic stiffness of the cabinet 20 andequivalently increase a cabinet volume, thereby realizing satisfactory bass reproductionwith a small cabinet.
申请人：MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
地址：1006, Oaza-Kadoma Kadoma-shi, Osaka 571-8501 JP
国籍：JP
代理机构：Gassner, Wolfgang
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