The present invention even without the withdrawal of the legs in such a direct operation imaging technician, so as to pull out the legs with a simple structure, a simple mechanism to fall when the arm is positioned on the side of the apparatus body in providing the rounds for X-ray imaging apparatus to prevent. At the bottom of the A carriage 4 of the apparatus main body 5, to move the carriage width direction is possible overhang on the side of the truck, and one of the auxiliary legs 17 for the both ends and the ground section 16, the auxiliary legs truck a support portion 18 for movably supporting the widthwise direction, the rotary motion of the rotating body interlocked with the rotational center shaft 13a about pivot arm 6 is converted into linear movement motion, the auxiliary leg which is supported on the support portion It provided the motion converting mechanism 19 for feeding towards the arm orientation. .FIELD 1【課題】撮影技師などが直接的な操作で脚の引き出しを行なわなくとも、簡易な構成で脚が引き出せるようにし、アームが装置本体の側方に位置したときの転倒を簡単な機構で防止する回診用X線撮影装置を提供する。【解決手段】装置本体5の台車4の下部に、台車幅方向に移動して台車の側方に張り出し可能とされ、両端を接地部16とする一本の補助脚17と、補助脚を台車幅方向に移動可能に支持する支持部18と、アーム6の回転中心軸13a回りの旋回に連動する回転体の回転運動を直線移動運動に変換して、支持部に支持されている補助脚をアーム配置方向に向けて送り出す運動変換機構部19とを設けた。【選択図】図1