Patent ID: 6969133

Claim:
Multi-purpose elements in combination with a sliding metal rack, the elements each consisting of in a box-type bar ( 1 ) with upturned-U cross section, a telescopic guide ( 2 ) being housed within the box-type bar ( 1 ), the guide having an internal wall having a tooth ( 2 b ) formed thereon, the metal rack ( 4 ) having two sides on a body, one box-type bar ( 1 ) being fixed to each of the two sides of the metal rack ( 4 ), becoming an integral part of the metal rack ( 4 ), acting as bearing structure of the body of the metal rack ( 4 ), each box-type bar ( 1 ) being provided with means for preventing each box-type bar from overturning and exiting from the guide ( 2 ), the guide being provided with means for cooperating with the preventing means on each box-type bar, an anti-loosening means of consists an elastically flexible tongue ( 7 ) located on an inner wall of each box-type bar ( 1 ), the inner wall of the box-type bar being provided with two notches ( 8 ) capable of isolating the flexible tongue ( 7 ), the flexible tongue ( 7 ) having an internal face having a section ( 7 a ) with higher thickness provided with a seat ( 7 b ) that can house the tooth ( 2 b ) located on the internal wall of the guide ( 2 ).