Patent ID: 6419647
Filing Date: 2002-07-16
Classification: A61H,B06B,G09B

Abstract:
A motion sickness expression apparatus comprising:a body carrying section for carrying a human body thereon; and a vibration application unit for supporting said body carrying section in a manner to permit vibration of said body carrying section; said vibration application unit including: a base; a vertical vibrator to which said base is connected so as to be vertically movable with respect to said base through link members and which is constructed so as to support said body carrying section thereon; and a magnetic spring mechanism including permanent magnets arranged on said base and vertical vibrator so as to repel each other, respectively; said magnetic spring mechanism including permanent magnets arranged on said base and vertical vibrator so as to repel each other, respectively; said magnetic spring mechanism also including an actuator for moving said permanent magnet arranged on said base to vary areas of said permanent magnets opposite to each other, leading to vibration of said vertical vibrator; whereby vibration of said body carrying section is controlled through said vertical vibrator vibrated at random by repulsion force of said permanent magnet on said vertical vibrator with respect to said permanent magnet on said base due to driving of said actuator so that an acceleration of vibration of said body carrying section falls within a motion sickness expression region.