| 摘要 |
A foldable utility cart ( 10 ) includes a pair of spaced, parallel frame members ( 22 ). A collar ( 50 ) is disposed about each of the frame members ( 22 ) and is slidable therealong. A pair of front legs ( 40 ) and a pair of rear legs ( 46 ) are pivotally connected to the collars ( 50 ). The front and rear legs ( 40, 46 ) each support a wheel ( 44, 48 ). The collars ( 50 ) can be moved from a raised position where the legs ( 40, 46 ) and wheels ( 44, 48 ) are folded adjacent each other, to a lowered position where the legs ( 40, 46 ) and wheels ( 44, 48 ) are extended to support the cart ( 10 ) for movement on the ground. The cart ( 10 ) includes a moveable basket carrier assembly ( 18 ). The basket carrier assembly ( 18 ) includes toothed racks ( 110 ) that are connected to channel members ( 24 ) for movement therealong. A ratchet clutch ( 136 ) is used to permit up or down movement of the racks ( 110 ) and to maintain the racks ( 110 ) at any desired vertical position.
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