VEHICLE SPEAKER

摘要

PROBLEM TO BE SOLVED: To provide a vehicle speaker in which a sound field is increased, and high-frequency sound is heard similarly even on any seat. SOLUTION: A resin roof panel 20 is used as a diaphragm for playing back high-frequency sound. A super magnetostrictive vibrator 30 (31) is used as a vibration exciter for the roof panel 20 and a vibration output shaft 41 vibrates in accordance with a signal for playing back high-frequency sound. A vibration transmission pad 21 (22) is fixed to the roof panel 20 and connected to the vibration output shaft 41 of the super magnetostrictive vibrator 30 (31) in a vibration transmissible manner. The vibration transmission pad 21 (22) vibrates the roof panel 20 when the vibration output shaft 41 vibrates. COPYRIGHT: (C)2009,JPO&INPIT