US Patent 9284054 Device for the optimized storage of trolleys

A device for stowage of carts including: a first compartment configured to receive carts lined up side by side; a second compartment configured to receive carts lined up side by side, including an aperture allowing cart entry and exit and arranged above the first compartment; a substantially horizontal platform capable of moving in a vertical direction between a lower position in which it is substantially at floor level and a higher position in which it is substantially level with a lower, substantially horizontal wall of the second compartment and facing the opening thereof; and a mechanism arranged in the second compartment for motorized transfer of at least one cart from the second compartment to the platform and vice versa.