Patent ID: 7140502

Claim:
A support system for a moving shelf, the system comprising: a) opposed flanged rollers ( 6 ), co-axial and with their flanges ( 7 ) outermost to support and guide a shelf ( 8 ) between the flanges; b) coupling members ( 23 ) to co-operate with inner faces of the flanged rollers to present co-axial inwardly projecting stub shafts ( 22 ), the coupling members being adapted to co-operate with the rollers in a manner to ensure co-rotation; c) a support ( 27 ) for each said coupling member whose stub shaft is embraced by a bearing ( 28 ) carried by the support, the supports being mounted on an underlying base ( 1 ) rotationally to carry the coupling members so that in use load on the rollers is transferred via said co-operation to the supports; d) a layshaft ( 21 ), each of whose ends is telescopically engageable with the free ends of the stub shafts, and e) one or more components ( 26 ) for preventing relative rotation between the stub shafts and the layshaft and between the coupling members and the rollers, wherein the assembly of coupling members, supports and layshaft is axially expandable by the telescopic engagement to provide said co-operation and the assembly is axially reducible by the telescopic engagement to release said co-operation.