Telescopic rail with locking mechanism

A telescopic rail mainly consisting of three, substantially C-shaped sections of which the inner or drawer section (3) is slidably mounted in the intermediate section (2) with interposition of a first ball cage and the intermediate section (2) is slidably mounted in the outer or cabinet section (1) with interposition of a second ball cage (7), there being mounted at one end of the intermediate section (2) a stop block (5) with resilient fingers (13), which fingers (13) can be brought into a coupling position wherein the inner section (3) is coupled to the intermediate section (2) and into a pass position wherein the inner section (3) can move independently of the intermediate section (2), characterized in that the inner section (3) at one end thereof is provided with inwardly pointing projections (11) facing each other, while the resilient fingers (13) of the stop block (5) are fitted with outwardly pointing projections (12) facing away from each other, which projections (12) can be brought into the coupling position by means of a locking member (6) adapted to be slid between the free ends of the resilient fingers (13), in which coupling position the projections (12) of the resilient fingers (13) are disposed in the path of travel of the projections (11) of the inner section (3).