| 摘要 |
<p>A caster includes a housing, a rotating member, and a caster. The housing defines an accommodation space having an open bottom end. The rotating member is disposed within the housing, and is rotatable between first and second angular positions. The caster is co-rotatable with the rotating member. One of the housing and the rotating member has first and second engaging portions. The other one of the housing and the rotating member has a third engaging portion, which engages the first engaging portion so that the caster is unfolded and disposed outwardly of the housing when the rotating member is at the first angular position and which engages the second engaging portion so that the caster is folded and disposed at a folded position and within the accommodation space when the rotating member is at the second angular position.</p> |
