Storage rack

Claim 1

AN ARRANGEMENT FOR USE IN A STORAGE RACK PROVIDED WITH A PLURALITY OF FRONT OPENINGS WHICH ARE ADJUSTABLE TO PERMIT INSERTION AND WITHDRAWAL OF MERCHANDISE UNITS OF DIFFERENT DIMENSIONS WHILE PREVENTING SIGNIFICANT LOSS OF STORAGE CAPACITY, WHICH COMPRISES (A) A PAIR OF PARALLEL UPPER AND LOWER BEAMS POSITIONED IN SUPERPOSED SPACED RELATION, AND (B) A PLURALITY OF MOVABLE NORMALLY VERTICAL POSTS EXTENDING BETWEEN SAID BEAMS, (C) THE BEAMS EACH BEING PROVIDED WITH A SERIES OF POST-ENGAGING PARTS SPACED ALONG THE BEAM, (D) THE POSTS EACH BEING PROVIDED AT EACH END WITH A BEAM-ENGAGING PART COOPERATING WITH AND SELECTIVELY ENGAGED WITH ONE OF SAID SERIES OF BEAM PARTS SO AS TO LOCATE THE POST IN A VERTICALLY EXTENDING POSITION SELECTIVELY HORIZONTALLY SPACED FROM AN ADJACENT VERTICAL POST SO AS TO DEFINE BETWEEN SAID ADJACENT POSTS A SPACE OF THE DESIRED HORIZONTAL WIDTH, (E) SAID PAIR OF COOPERATING PARTS AT EACH END OF THE POST BEING RELATIVELY VERTICALLY MOVABLE SO AS TO EFFECT DISENGAGEMENT OF SAID PARTS INCIDENT TO THE SAID VERTICAL MOVEMENT, (F) THE WEIGHT OF SAID POST SERVING TO MAINTAIN SAID COOPERATING PARTS IN ENGAGEMENT.