Patent ID: 6948900

Claim:
A wire flow rack system for handling articles comprising: at least two substantially parallel longitudinal wires separated from one another by a first distance and lying in a first plane over which the articles flow; at least two substantially parallel transverse wires joined with and transverse to the at least two longitudinal wires, each of the transverse wires of a first length that is greater than the first distance so that the transverse wires extend beyond the at least two longitudinal wires, at least one of the transverse wires bent upward relative to the first plane beyond at least one of the at least two longitudinal wires to form an upwardly extending transverse wire portion; a bumper wire joined with the upwardly extending transverse wire portion, the bumper wire extending substantially parallel to the longitudinal wires, whereby the bumper wire forms a boundary for guiding the articles over the first plane; a roller wire joined with and transverse to the at least two longitudinal wires, the roller wire positioned between the at least two transverse wires, the roller wire extending beyond at least one of the two longitudinal wires to form a first free end of a second length; a one-piece plastic roller of a generally cylindrical shape, having a width, and defining an axial bore, the roller rotatably mounted to the first free end by positioning the axial bore over the first free end of the roller wire, the second length being greater than the roller width so that a first free end portion extends beyond the roller, whereby the roller provides a rolling surface over which the articles flow; and a cap including a flange, the cap substantially only frictionally engaging the first free end portion, whereby the cap is manually removable from the first free end portion, wherein the flange is adapted prevent the roller from disengaging the first free end of the roller wire.