| 摘要 |
A collapsible wheeled cart for carrying cases comprises a handle, a support platform for a carrying case pivotally connected to a lower end of the handle, a pair of wheel arms each having an outer end carrying a wheel and an inner end pivotally connected to the lower end of the handle, and an actuator operable to effect movement of the platform and wheel arms in unison from a non-deployed position in a collapsed configuration for the cart to a deployed position in an expanded configuration for the cart. The actuator is operable by a user applying a single manual operative motion to the actuator, which serves to expand the depth and width of the cart when it is placed in the expanded configuration from the collapsed configuration. A convertible carrying case system includes a carrying case, a wheeled luggage cart supporting the carrying case, a connector element on the cart and a complementary connector element on the carrying case releasably lockingly engaged with the connector element on the cart allowing a non-rolling carrying case to be converted into a rolling carrying case.
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