Patent ID: 7739816

Claim:
A flat plate-like article comprising two or more flat plate-like members and one or more connection parts, wherein a first plate-like member and a second flat plate-like member are connected to each other through a connection part, which is positioned on a border line of the first and second flat plate-like members and projected backward from the border line so that the first and second flat plate-like members can be double-spread, wherein a front edge of the connection part located at the border line does not parallel a back edge of the connection part located opposite the front edge, and the front edge is longer than the back edge; and wherein the flat plate-like article can stand on a support surface when the first and second flat plate-like members are brought into a double-spread state, in which at least a part of the bottom-side of the connection part, at least a part of the bottom-side of the first flat plate-like member, and at least a part of the bottom-side of the second flat plate-like member function as contact parts to define a contact plane for contacting the support surface, wherein, in the double-spread state, the inside surfaces of the first and second flat plate-like members each face upward to form an angle greater than 90 degrees with the contact plane, while the outside surfaces of the first and second flat plate-like members each face downward to form an angle smaller than 90 degrees with the contact plane.