Shelf structure

Claim 1

A SHELF STRUCTURE, COMPRISING; UPRIGHT POSTS RESPECTIVELY AT FOUR CORNERS OF A RECTANGULAR SHELF AREA; MEANS CONNECTING THE POSTS FOR MAINTAINING THE LATTER IN FIXED RELATIONSHIP TO EACH OTHER, EACH POST INCLUDING A LATERALLY INWARDLY OPENING, VERTICALLY ELONGATE CHANNEL PORTION OF C-SHAPED CROSS-SECTION; A SHELF SUPPORTING CLIP FOR EACH CHANNEL PORTION, EACH CLIP INCLUDNG A BODY OF RESILIENT MATERIAL OF GENERALLY U-SHAPE IN PLANE VIEW, SAID BODY HAVING A BIGHT PORTION AND EXTENDING THEREFROM IN THE SAME GENERAL DIRECTION, AN UPPER SHELF SUPPORTING PLATE AND GENREALLY PARALLEL LEGS BELOW SAID PLATE, SAID LEGS HAVING FREE ENDS RESILIENTLY COMPRESSIBLE TOWARD EACH OTHER, THE FREE ENDS OF THE LEGS OF EACH CLIP PROJECTING INTO THE ASSOCIATED CHANNEL OPENING AND HAVING OPPOSITELY OUTWARDLY TURNED PORTIONS RELEASABLY LATCHED WITHIN THE CHANNEL PORTION AT OPPOSITE SIDES OF THE OPENING, AND BELOW THE LAST SAID PORTIONS SAID FREE ENDS HAVING OTHER PORTIONS TERMINATNG RESPECTIVELY IN POINTED ENDS ENGAGING AND ADAPTED TO DIG INTO THE CHANNEL BACK OPPOSITE THE OPENING WHEN A LOAD IS PLACED ONTHE SHELF SUPPORTING SURFACE TO RESIST PIVOTAL MOVEMENT OF SAID CLIP IN A FIRST DIRECTION, AND ABOVE THE OUTWARDLY TURNED PORTIONS, SAID FREE ENDS HAVING ELONGATE FINGERS TERMINATING ADJACENT SAID CHANNEL BACK FOR EFFECTIVELY RETAINING THE CLIP IN NORMAL SHELF SUPPORTING POSITIONS AND FOR RESISTING PIVOTAL MOVEMENT OF THE CLIP BEING RETAINED IN POSITION IN THE FIRST DIRECTION, THE CLIP BEING RETAINED IN POSITION IN THE CHANNEL BY RESILIENCE OF THE CLIP WHEN NOT LOADED, AND BEING VERTICALLY ADJUSTABLE IN THE CHANNEL UPON MANUAL COMPRESSION OF THE FREE ENDS OF THE LEGS THEREOF TOWARD EACH OTHER REDUCING THE RETENTIVE EFFECT, AND BEING REMOVABLE FROM THE CHANNEL OPENING UPON COMPRESSION OF THE FREE ENDS TO THE CLEAR THE OPENING; AND A SHELF BER HAVING FOUR CORNER PORTIONS RESTING RESPECTIVELY ON THE SHELF SUPPORTING SURFACES OF THE CLIPS.