| 摘要 |
PURPOSE: A caster and a white board including the same are provided to stably maintain each position of wheels and facilitate showing and hiding the wheels by equipping an attachment member and a stationary member. CONSTITUTION: A caster(1) comprises a wheel(2), a supporting member(3), a cylindrical stopper(4), and a stationary member(6). The wheel comprises a fixing bolt(21) in order to be fixed by a nut(10) on the lower surface of furniture. The supporting member is equipped with a shaft hole(31) and a guide groove(32). The supporting member supports the stopper to smoothly rotate. The stopper is equipped with a shaft rod(41) and embeds a magnet(51) as an attachment member(5) into an upper part. The stopper is equipped in the lower side of the guide groove for restricting the rotation of the stopper in order to maintain a stationary state. |
