초록 ▼

A backpack including a sack and a frame, the frame extending at least to the bottom surface of the sack such that the backpack can stand upright. The sack encloses a compartment which can be divided into subcompartments by shelves which are movable and removable for accommodating items of various si

A backpack including a sack and a frame, the frame extending at least to the bottom surface of the sack such that the backpack can stand upright. The sack encloses a compartment which can be divided into subcompartments by shelves which are movable and removable for accommodating items of various size and shape. The frame holds the sack upright for effective use of the shelves.

대표청구항 ▼

[ What is claimed is:] [1.] A backpack comprising:a pliable sack having a front wall, a rear wall, a first side wall, a second side wall, a bottom surface and a top surface defining a compartment, wherein the bottom surface includes an inside surface on the compartment side of the bottom surface;a f

[ What is claimed is:] [1.] A backpack comprising:a pliable sack having a front wall, a rear wall, a first side wall, a second side wall, a bottom surface and a top surface defining a compartment, wherein the bottom surface includes an inside surface on the compartment side of the bottom surface;a frame supporting the sack, the frame comprising a first frame member and a second frame member, wherein the first frame member is positioned adjacent to one of the walls selected from the front wall, rear wall, first side wall and second side wall; and wherein the second frame member is positioned adjacent a different one of the walls selected from the front wall, rear wall, first side wall, and second side wall; wherein the first frame member is parallel to the second frame member, wherein the first and second frame members each have a top portion in the direction of the top surface, and the first and second frame members each have a bottom portion in the direction of the bottom surface, wherein the bottom portion of each of the first and second frame members extends at least to the inside surface of the sack, wherein the backpack can be placed in an upright position on the bottom portion of the frame; andat least one horizontal shelf removably attached to the first and second side walls, wherein the at least one horizontal shelf divides the compartment into two or more subcompartments, and wherein the horizontal shelf prevents the sack from collapsing, wherein removal of the at least one horizontal shelf from the sack allows one or more of the first and second frame members to be moved into a position that is parallel and adjacent to the other of the first and second frame members without removing either one of the first and second frame members from the sack.