| 摘要 |
A multi-purpose support structure with an extendable handle and retractable wheels, including in combination: a support frame with a pair of longitudinal uprights, and a handle element, with two parallel sides slidable within the uprights and with a transverse connecting side forming a gripping element. Each upright comprises first and second guide channels extending parallel to each other side by side, and said parallel sides of the handle element are slidable within said first guide channel. The support further comprises: a pair of rods provided lowerly with the wheels and slidable within said second guide channels, and means for simultaneously and opposingly moving said parallel sides of said handle element and said rods along their respective guide channels.
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