| 摘要 |
<p>An I.V. support stand (10) includes a support section and a base (20). The base (20) includes a base body and a plurality of wheel assemblies (24), each wheel assembly including a wheel support (26) operatively mounted to the base body for pivotal movement relative thereto and at least one wheel (28) operatively mounted to the wheel support. The wheel supports are pivotally movable relative to the base body between an extended position in which the wheels rest on a support surface and retracted position, the arrangement being such that when the base is disposed on the support surface the wheels are caused to adopt the extended position and when the base is moved clear of the support surface the wheel assemblies are caused to adopt the retracted position.</p> |
