| 摘要 |
PURPOSE:To sense acoustic vibration in a body efficiently by forming a groove to other face of an elastic member whose one face receives pressing of a human body, inserting a long resonance tube in the groove along the groove, supporting the tube and providing an electroacoustic transducer vibrating the air column in the tube. CONSTITUTION:The groove 22 is formed to other face of the elastic member 20 whose one face receives pressing of a human body, a long resonance tube 34 is inserted in the groove along the groove 22 to support the tube and the electroacoustic transducer 52 is provided, which vibrates the air column in the tube. When an electric signal being a music or the like is inputted to the electroacoustic transducer 52, the electric signal is transduced into acoustic vibration. In this case, the air column in the tube 34 supported in the groove 22 of one face of the elastic member 20 is resonated. The vibration of the air column causes the vibration of the tube wall. The vibration of the tube wall is propagated in the elastic member 20 and acoustic vibration is propagated to the human body supported pleasantly onto the other face of the elastic member 20. |
