Patent ID: 7137522

Claim:
A collapsible plastic storage and transport container comprising: (a) a bottom extending in a plane; (b) first and second lengthwise side walls connected to said bottom; (c) first and second crosswise side walls connected to said bottom; said lengthwise and crosswise side walls being adapted to assume an operating position wherein said lengthwise and crosswise side walls extend vertically from said bottom opposite one another in pairs; (d) a top end frame connected with said lenghtwise side walls in articulated manner near top edges of said lenghtwise side walls; and (e) a lid for closing the container having an underside and a lid recess and a ridge formed on said underside; wherein said lengthwise side walls are mounted on said bottom and on said end frame in articulated manner about longitudinal axes that run parallel to one another and to the plane of said bottom, said lengthwise side walls being adapted to fold about a center longitudinal axis; wherein said crosswise side walls are each structured in one piece, are each provided at a top edge with a device to secure it in place with a positive lock on said top end frame, and are adapted to pivot near said bottom about a crosswise axis that is parallel to the plane of said bottom from an upright position into a horizontal collapsed position after release of the locks; wherein said device comprises at least one tab adapted for being fastened in place in a complementary recess in the top end frame with a positive lock; and wherein the tab in the first crosswise side wall is substantially cylindrical in shape and, in the upright position of said first crosswise side wall, projects beyond the complementary recess in the top end frame into said lid recess that closes the container, while the tab in the second crosswise side wall has a protecting part that rests against said ridge.