| 摘要 |
PROBLEM TO BE SOLVED: To provide a caster wheel capable of performing a smooth reversal operation of 180 degrees by a comparatively simple structure.SOLUTION: A caster wheel includes a plate-like axle support member 20 that supports a wheel 30 where wheels 32 and 33 are installed rotatably by bearings 34 and 35, and a spherical member 31 that is installed penetrating the axle 30 in which an ellipse hole 22 that penetrates both sides of the axle support member 20 and has its major axis in a longitudinal direction is provided at the axle support member 20, and the spherical member 31 is disposed in the ellipse hole 22 so that the axle 30 is supported to the axle support member 20 through the spherical member 31. |
