초록 ▼

A unitary molded plastic bakery tray, with the end walls higher than the side walls to provide a 90 degree cross-nesting, and the end walls having interengaging feet and rails to provide for 180 degree oriented high stacking and like oriented low stacking. The bottom is either a flat planar surface

A unitary molded plastic bakery tray, with the end walls higher than the side walls to provide a 90 degree cross-nesting, and the end walls having interengaging feet and rails to provide for 180 degree oriented high stacking and like oriented low stacking. The bottom is either a flat planar surface with chamfered bottom edges or is raised so that the tray is provided with corner structure having chamfered bottom edges. Blind stacking structure is provided by an additional outer rail on each end wall and additional outer feet on each end wall for engaging the outer rail. Alternatively, blind stacking is provided by structure along each end wall having large feet and cooperating large recesses coplanar with inner small feet and cooperating inner recesses such that the large feet can span and smoothly slide over the small recesses during blind stacking. Further, trays of different series having different stacking heights can be blind stacked on one another during stacking, but include bottom and side wall structure that prevents inter cross-nesting of trays of different series.

대표청구항 ▼

A container, for stacking with a plurality of like containers, wherein the container has at least a bottom and end walls, with the end walls having interengaging feet and recesses when two like trays are stacked, the improvement comprising: at least one projection on the midportion of each said end

A container, for stacking with a plurality of like containers, wherein the container has at least a bottom and end walls, with the end walls having interengaging feet and recesses when two like trays are stacked, the improvement comprising: at least one projection on the midportion of each said end wall; at least one recess in the midportion of each said end wall for receiving therein with generally vertical telescoping relative movement, the corresponding projection of a like stacked container; said feet and recesses at one side of like stacked containers providing first pivot means for pivoting the top one of the stacked containers generally about an axis at said one side sufficiently for said feet and recesses at the other side to become completely vertically disengaged and sufficiently for said projections and recesses in the midportion of said end walls to become completely vertically disengaged at pivoted angles of said containers above a generally fixed threshold angle, and said pivot means providing lost motion in generally the horizontal direction parallel to said end walls and in the direction from said first pivot means toward said midportion sufficiently to vertically misalign said projections and their adjacent recesses at said pivoted angles to where said containers assume a pivoted misaligned position; support means on said end walls for supporting said projections outside of their recesses when said other sides of said containers are relatively pivoted towards each other from said pivoted misaligned position and constituting second pivot means for thereafter relatively pivoting said containers with respect to each other from pivot angles to a generally parallel relative position about said projections; and means for supporting the top one of said like containers on said end walls of the bottom one of said containers in said parallel relative position and providing generally horizontal sliding bearing surfaces to continue said supporting as said top one of said containers is slid horizontally in said direction for a substantial distance to where a substantial portion of the other side of a lower adjacent container to provide a greater portion of the top one of said containers for the user to grasp, whereby the containers may be unstacked while grasping only a side of the top container for moving it to an unstacked and horizontally misaligned position where a greater portion of the top container is available for grasping.