PROBLEM TO BE SOLVED: To provide plural caster lock mechanisms which can widely secure a space to the installation surface without exposure of a movable member from a frame.SOLUTION: Plural caster lock mechanisms in which casters 2 are attached to the lower side of a frame 3 having a storage space part and horizontal shafts 22 of the casters 2 are arranged in the storage space part include lock members 4 which are arranged in the storage space part of the frame 3 and whose first ends are connected to the horizontal shafts 22, and interlocking members 5 which have the long shape, are arranged in the storage space part of the frame 3, connected to the second ends of the lock members 4 and are rotatable with the shaft center extending in parallel with the horizontal shaft 22 as the center. When the interlocking members 5 are rotated in one direction, the lock members 4 and the horizontal shafts 22 are rotated in the first direction and the casters 2 are locked. When the interlocking members 5 are rotated in the other direction, the lock members 4 and the horizontal shafts 22 are rotated in the second direction and the casters 2 are unlocked.SELECTED DRAWING: Figure 9【課題】 可動部材が架台から露出しないで設置面までの空間を広く確保することが可能な、複数キャスタロック機構を提供する。【解決手段】 収容空間部を有する架台３の下側にキャスタ２が取り付けられて、収容空間部内にキャスタ２の水平軸２２が配置され、架台３の収容空間部内に配置され、第１の端部が水平軸２２に連結されたロック部材４と、長尺状で架台３の収容空間部内に配置されて、複数のロック部材４の第２の端部と連結され、水平軸２２と平行に延びる軸心を中心に回動自在な連動部材５と、を備える。連動部材５が一方の方向に回動すると、複数のロック部材４および複数の水平軸２２が第１の方向に回動して複数のキャスタ２がロックされ、連動部材５が他方の方向に回動すると、複数のロック部材４および複数の水平軸２２が第２の方向に回動して複数のキャスタ２がロック解除される。【選択図】 図９
