Patent ID: 7214024

Claim:
A push back pallet storage system, comprising a plurality of side members and cross members arranged in several levels; a plurality of longitudinal I-shaped beams each configured from a single metal sheet and each having an upper flange portion and a lower flange portion connected by a vertical portion; a plurality of carriages for fitting pallets end movable lengthwise relative to said longitudinal beams, each of said movable carriages being formed as a substantially inverted U-shaped carriage provided with wings and surrounding a respective one of said I-shaped beams so that said upper flange portion of each of said I-shaped beams is located in a region of an upper closed portion of each of said carriages and said lower flange portion of each of said I-shaped beams is located in an area of a lower open portion of a respective one of said carriages; and a plurality of bearings running inwardly of a respective one of said inverted U-shaped carriages and on said lower flange portion at both sides of said vertical portion of a respective one of said I-shaped beams.