Locking apparatus for roll-up doors used in factory, has locking section with strip-shaped formations whose free end is engaged with inner surfaces of frame profile to prevent displacement of door leaf from guide groove

摘要

The locking apparatus has door leaf (3) having locking sections (9) provided in its opposed edge (13). The locking section has strip-shaped formations (10) with free end (11) which extends towards the central portion of the door leaf. The free end of the locking section is engaged with the inner surfaces (12) of a frame profile (4) to prevent displacement of the door leaf from a guide groove (5).