| 摘要 |
PROBLEM TO BE SOLVED: To provide a loudspeaker apparatus adopting a structure, whereby direct collision of a connection member with a frame and a pot-type yoke is prevented so as to reduce the occurrence of a large abnormal sound noise, when a voice coil bobbin is moved to a lower side at large amplitude times. SOLUTION: In the speaker apparatus, when the excessive drive signal of a withstanding input or higher is given to the voice coil, the voice coil bobbin or the like is moved at a large amplitude. When the voice coil bobbin or the like is moved to the reverse side (lower side) of a sounding side by a large amplitude, components of the loudspeaker apparatus are collided with each other to produce a loud abnormal sound. Thus, the loudspeaker apparatus can be designed so that the connection member and the pot-type yoke are collided with each other via a buffer member at e.g., a region E1 at the movement of the voice coil or the like to the lower side with a large amplitude. That is, the buffer member is adhered along the circumferential direction of the lower side of the bent part of the connection member facing the upper side of a cylindrical part of the pot-type yoke. Since the cylindrical part and the bent part are collided with each other via the buffer member in an elastic state at the movement of the voice coil bobbin or the like, toward the lower side with a large amplitude in this way, the occurrence of loud abnormal sound can effectively be suppressed. COPYRIGHT: (C)2005,JPO&NCIPI
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