Device for closing a construction site consisting of assistance means for locking and unlocking the sheet

摘要

Device for closing a work space, made by means of profiles, consisting of: - a sleeper (1), - a practicable sheet (2) or swinging leaf, associated to the sleeper by means of a pivoting connection (3), - a system (4) for locking and unlocking the sheet (2) on the sleeper (1), which comprises at least one lock means (5) and at least one latch means (6) suitable for cooperating with the means (5) of strike to block the sheet (2) in the sleeper (1), one of said means (5) of strike and half (6) of latch associated to the sheet (2) and the other to the sleeper (1), - means (7) for controlling the locking and unlocking system (4) comprising: - a rotating electric actuator (8) disposed inside a profile of the sheet (2) and linked thereto, - a connection (9 ) screw-nut type arranged inside a leaf profile (2), to transform the rotating movement of the electric actuator (8) into a translation movement n of one of said strike means (5) or latch means (6) of the locking and unlocking system (4) which is associated with the leaf (2), - control means (10) of the electric actuator, characterized because it further comprises: - a system (25) for immobilizing the sheet (2) with respect to the sleeper (1) in a pre-locking position, the sheet being applied against the sleeper and not locked, positioned so that said means ( 5) of strike and said latch means (6) are suitable to cooperate with each other by effect of the rotating electric actuator (8), from this pre-locking position, and - an ejection system (29) of the sheet (2) that passes the latter from its pre-locking position to a half-open position by releasing the sheet (2) of said immobilization system (25) from the sleeper (1) in said pre-locking position, which uses the displacement of the Locking means (5) or latch means (6) during unlocking eo of the leaf (2).