Storage and display apparatus employing cantilevered roller track

Claim 1

A roller carrier useful in either the horizontal or vertical plane which comprises a generally rectangular, longitudinally extended first track member, said first track member possessing a generally H-shaped cross section defining a support section and a track section; a generally rectangular, longitudinally extended second track member of substantially identical length and cross sectional configuration to said first track member, said second track member disposed adjacent and above said first track member whereby said respective track sections are in face-to-face juxtaposition; a longitudinally extending connecting track located within and between said first and said second track members, said connecting track possessing a generally I-shaped cross section defined by a vertically extending central web member including a laterally extending base member, and roller motive means located within the track sections of said first and said second track members adapted to support said second track member and connecting track, respectively, in spaced relationship above said first track member, said roller motive means comprising a plurality of paired rollers rotatably attached in fixed position on the web member of said connecting track, said paired rollers situated in spaced-apart relationship to each other in both the longitudinal and the transverse plane whereby said rollers are in operative position to contact the respective inner surfaces of the track sections of said first and said second track members, and a plurality of single rollers located and anchored in the lowermost area of the track section of said first track member and in contact with the base member of said connecting track, said roller motive means further adapted to enable said second track member and said connecting track to reciprocate a finite distance in relation to said first track member.