US Patent 7165821 Drawer assembly

A drawer assembly includes four side boards and each of the side boards has at lease one lug on two ends and one of two sides thereof, and a bottom board which has lugs one four sides thereof. The four side boards are connected to be a four-side frame by connecting the at least one lugs by four pins. The four-side frame is connected to the bottom board by connecting the at least one lugs of the four-side frame to the lugs on the four sides of the bottom board. The drawer assembly requires no tools or welding machine to assemble a drawer within a short period of time.