Abstract: This application describes carts having a single vertical frame supported by a tripod-like leg structure. They are collapsible, extendable, and able to accommodate a wide variety of different accessories. To add accessories, carts can include one or more coupling components. Each coupling component includes at least one clamp that can be tightened around a cart's vertical frame along with a female coupler and a male coupler. The female coupler can be attached to a clamp and a male coupler can be attached to an accessory. The male coupler features a v-shaped extrusion and the female coupler features a complementary v-shaped intrusion allowing the male coupler to couple with the female coupler so that accessories can be added to the cart in a cantilevered manner.

Abstract: This application describes a coupling mechanism designed to facilitate attachment of cantilevered components to a stable frame. It is contemplated that embodiments of the inventive subject matter can be implemented to couple such accessories as shelves and trays to modular carts where the cart features a single vertical frame from which the accessories must be attached. Embodiments feature a male coupler and a female coupler, where the male coupler has a v-shaped extrusion and the female coupler has a complementary v-shaped intrusion into which the male extrusion fits upon coupling the two together.