| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a "speaker device" in which a magnetic circuit part is made to be a thin shape, and moreover, of which a driving load is small and driving efficiency is good. <P>SOLUTION: In a speaker device 1, a vibration part 11 is held in a housing 2 in a freely vibrating state, and a pair of sheet shaped driving parts 13 and 13 are connected to the vibration part 11. A first opposed part 13b of the driving part 13 is guided in the direction of Z by a first guidance gap G1 of a magnetic circuit part 20, a second opposed part 13c is guided in the direction of X by a second guidance gap G2, and the driving part 13 curves between the first guidance gap G1 and the second guidance gap G2. By providing voice coils in the first opposed part 13b and the second opposed part 13c, and forming a magnetic path which crosses the first guidance gap G1 and the second guidance gap G2, the vibration portion 11 is driven in the direction of Z. <P>COPYRIGHT: (C)2012,JPO&INPIT |
