GUIDE ASSEMBLY Russian patent published in 2012 - IPC A47B88/16 

FIELD: mechanics.

SUBSTANCE: guide assembly includes external guide, middle guide, internal guide and return unit where external guide has the cavity for arrangement of middle guide, internal guide and return unit. Middle guide has the possibility of being slid in cavity of external guide and has the cavity that contains internal guide. Internal guide is located in middle guide and has the possibility of being slid in cavity of middle guide. Return unit is installed on one end of cavity of external guide and includes fastener, sliding path, movable part, attachment part, elastic element and guide part. Middle guide goes beyond the limits of sliding path for increasing the sliding limits of middle guide and length of middle guide. In cavity of external guide there located are two receiving slots on both sides of fastener and movable part.

EFFECT: increasing the length of the guide in extended position without loss of carrying capacity of the guide itself.

20 cl, 25 dwg