PROBLEM TO BE SOLVED: To normally place a moving apparatus with casters on a floor surface in a secured state and move the moving apparatus slightly without executing a release operation of the secured state.SOLUTION: When a person pushes a medical apparatus 10 as a moving apparatus slightly in the direction of an arrow Y1a by prescribed force, a pendulum part 21 of a securing device 20 swings in the direction of an arrow Y2a, inverse to the pushing direction in accordance with the inertial law. A stopper 22b of a leg part 22 is lifted from a floor surface 40 by the swing as shown by an arrow Y3, and then, the medical apparatus 10 slightly moves in a short time while the pendulum 21 is swung in the direction of the arrow Y2b, inverse to the previous direction, and comes into contact with the floor surface 40.COPYRIGHT: (C)2015,JPO&INPIT【課題】キャスタ付の移動機器を通常は床面に固定状態に載置し、固定状態の解除操作を行わずとも移動機器を少しだけ移動させること。【解決手段】人が所定の力で移動機器としての医療機器10を矢印Y1aの方向に僅かに押した際に、慣性の法則に従い、固定装置20の振子部21が、その押した方向と逆の矢印Y2aの方向に振れる。この振れで脚部22のストッパ部22bが矢印Y3で示すように床面40から持ち上がり、その後、振子部21が先程と逆の矢印Y2b方向に振れて床面40に当接するまでの短い時間に、医療機器10が少しだけ移動するようにした。【選択図】図3