US Patent 8104839 Chair that is assembled and disassembled easily and quickly

A chair includes a support frame, a seat frame detachably mounted on the support frame and a backrest frame detachably mounted on the support frame. Thus, the support frame, the seat frame and the backrest frame are combined together easily and quickly so that a user can assemble and disassemble the chair by himself without needing aid of any hand tool, thereby facilitating the user assembling and disassembling the chair. In addition, the support frame, the seat frame and the backrest frame are detached from and laminated with each other before assembly so as to reduce the whole volume of the chair and to decrease the cost of packaging, storage and transportation of the chair.