Patent ID: 7992731

Claim:
A shelving unit comprising a plurality of upright support posts, a shelf having multiple corners, and a multi-component corner structure at each corner of the shelf for releasably connecting the shelf to the posts, each corner structure comprising a two piece base segment and a substantially frictionless outside interlocking segment, the two piece base segment including a housing fixedly connected to a shelf corner and a substantially frictionless inner liner within the housing, a stop on an upper portion of the housing engaging the inner liner to prevent upward movement of the liner beyond the upper portion of the housing, the inner liner having vertically oriented opposed undercut slots and the outside interlocking segment having vertically oriented opposed outwardly directed flanges that engage within the slots when the base and outside interlocking segments are releasably connected together, and the stop on the upper portion of the housing engaging the outwardly directed flanges on the outside interlocking segment to prevent upward movement of outside interlocking segment beyond the upper portion of the housing.