| 摘要 |
A vehicle seat fitted with a massaging device capable of exhibiting essential function of a seat without deteriorating an appearance of the seat and performing massaging function at any time for a driver of a car or the like. The vehicle seat includes a suitable massaging device incorporated in a portion of a back supporting section of the seat against which a part of the human body to be massaged is abutted. The massaging device includes a motor arranged in a motor chamber and a coiled spring arranged in a spring chamber and fixed at one end thereof on an inner surface of the spring chamber. The coiled spring includes a coil section wound into a multistage shape. When the motor is rotated at a high speed to generate vibration at a high speed, it is transmitted to the coiled spring to generate resonance in the spring, resulting in the coil section of the spring generating vibration at a high speed which mutually complicatedly amplifies to have an ultra-high speed. The so-generated vibration of the ultra-high speed is transmitted to air in the spring chamber to generate an ultrasonic-like wave which is used for massaging of the human body.
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