PROBLEM TO BE SOLVED: To improve maneuverability by making a sled body slide or travel with a wheel without performing a switching operation every time to put in/out the wheel and to change the direction of the sled body smoothly by making the wheel rotate smoothly around a rotary shaft.SOLUTION: The sled body 10, having a bottom wall 11 on which a transportation object is mounted and a surface configured as a sliding surface 12, is provided with the wheel 21 a part of which exposes from the sliding surface 12 and abuts on a ground surface, a base 22, and a castor 20 having a holding body 24 which is attached to the base 22 and holds the wheel 21 so as to make the wheel rotate around the rotary shaft 23 and to hold the wheel at an eccentric position with respect to an axis 23a of the rotary shaft 23. An opening 17 is formed on the sled body 10, and a disk 30 that rotates around the axis 23a of the rotary shaft 23 is arranged in the opening 17. An aperture 31 from which a part of the wheel 21 projects slightly is formed in the disk 30. When the holding body 24 rotates, the wheel 21 locks to the aperture to rotate the disk 30.COPYRIGHT: (C)2012,JPO&INPIT【課題】 逐一車輪の出し入れを行なう切換操作を行なわなくてもソリ本体を滑走させあるいは車輪により走行させることができるようにして操作性を向上させるとともに、回動軸を中心に車輪を円滑に回動可能にしてソリ本体の方向転換を円滑に行なうことができるようにする。【解決手段】 運搬物が載置可能な底壁11を有し表面が滑走面12として構成されたソリ本体10に、一部が滑走面12から露出して接地面に当接する車輪21と、ベース22と、ベース22に取り付けられ回動軸23を中心に回動可能且つ回動軸23の軸線23aと偏心する位置に車輪21を保持する保持体24とを備えたキャスター20を取り付け、ソリ本体10に開放口17を形成し、開放口17に回動軸23の軸線23aを中心に回動可能な円盤30を設け、円盤30に車輪21の一部が僅かに突出し且つ保持体24の回動時に車輪21が係止して円盤30を回動せしめる開口31を設けた。【選択図】図2
