| 摘要 |
A utility cart is provided which minimizes damage caused by impact with objects, particularly for use on a windy airport tarmac, the cart comprising a frame having main wheels bearing most of the cart's weight, these main wheels being fitted with latch-type brakes. The cart has a top structure, such as a roof, which extends horizontally above the frame, the periphery of which approximates or extends beyond the periphery of the frame. The top structure is normally supported above the cart's frame using three or more laterally collapsible supports for permitting the top structure to be displaced laterally while remaining substantially horizontal so as to minimize energy transfer upon lateral impact of the periphery of the top structure with an object. Each of the preferred collapsible supports comprises a tubular member elastically sandwiched between top and bottom plates mounted to the top structure and frame respectively.
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