초록 ▼

A lightweight collapsible shipping container is provided having a unitary molded construction in which a bottom panel is hingedly joined to four peripheral side panels and a top panel is hingedly joined to one of said side panels in a manner to provide an essentially co-planar and stackable associat

A lightweight collapsible shipping container is provided having a unitary molded construction in which a bottom panel is hingedly joined to four peripheral side panels and a top panel is hingedly joined to one of said side panels in a manner to provide an essentially co-planar and stackable association of panels when in knockdown condition, with edges of said side panels and top panel having interlocking means as the side panels are raised to positions perpendicular to the bottom panel and the top panel is lowered over the assembled side panels. In preferred embodiments of the invention, the side panels are vertically ribbed on at least one surface thereof to enhance the stacking strength; offsets may be formed in the top and bottom panels to provide an interlock between stacked container and/or to position articles within the container, such offsets preferably being formed in such manner as to not interfere with stacking of containers when in the knockdown condition with the several panels in a co-planar orientation. In other preferred embodiments interlocking means is also provided at the hinged junctures between adjacent panels to strengthen the same when in assembled orientation; the formation of such interlocking means being accomplished by shallow undercuts in mold parts or by movable inserts in mold parts permitting formation of deeper undercuts.

대표청구항 ▼

A packing and shipping container comprising a unitary blank of molded, foamed plastic material in which a bottom panel is hingedly joined to four peripheral side panels and a top panel is hingedly joined to one of said side panels in a manner to provide an essentially co-planar and stackable associa

A packing and shipping container comprising a unitary blank of molded, foamed plastic material in which a bottom panel is hingedly joined to four peripheral side panels and a top panel is hingedly joined to one of said side panels in a manner to provide an essentially co-planar and stackable association of panels when in knockdown configuration, with edges of said side panels and top panel having interlocking means as the side panels are raised to positions perpendicular to the bottom panel, and as the top panel is lowered over the assembled side panels, and in which compressive strength of the assembled container is enhanced by at least one of the structural features that comprise enlarging surface area of the side panels to increase their strength, providing interlocking means at the hinged juncture between adjacent panels, and providing interlocking means on top and bottom container surfaces to assure accurate side wall alignment of stacked containers.