| 摘要 |
PROBLEM TO BE SOLVED: To facilitate transfer of a subject by providing a supporting plate having castors that rotate nondirectionally in the underside, on which the subject is mounted and providing a displacement mechanism that displaces the supporting plate in the direction of passing the supporting plate astride from one supporting base to the other supporting base and the direction of crossing them. SOLUTION: A supporting device has a rectangular sheet cradle 10, and the cradle 10 has a plurality of ball castors 102 capable of nondirectional rotation that are mounted on the underside at a predetermined interval across the entire length of both sides of the cradle 10. In the cradle 10, only the left end of which remains on the supporting base 300 and the majority of the entire length is passed astride the trapezoidal structure of a magnetostatic field generation section 2 when delivered maximumly into a magnetic field space of the magnetostatic field generation section 2 from the supporting base 300 by the operation of a traction mechanism 400. When the cradle 10 is on the upper structure 302 of the supporting base 100, it can be displaced in the direction perpendicular to the longitudinal direction, namely, the width direction.
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