FIELD: instrument engineering.SUBSTANCE: invention relates to the improvement of self-locking fences of the feed table. Self-locking fence of the feed table comprises at least one swivel bar (1), two vertical crossbars, upper rail (3), lower crossbar and locking mechanism (L). Upper rail (3) and lower crossbar are installed in parallel and are connected by vertical crossbars to form an aperture, in which at least one swivel bar (1) is movable from open position (P1) to form an upper aperture to locked position (P2) to form a closed upper aperture. In this way, it is possible to move at least one swivel bar (1) back to said open position (P1), as well as the possibility of locking and unlocking at least one swivel bar (1) in the locked position (P2) by means of locking mechanism (L). Locking mechanism (L) comprises at least one latch (7), one release slider (8) and latch drive element (5) movably mounted on upper rail (3). Release slide (8) is rigidly attached to drive element (5) of the latch. Latch (7) compr
