Security access lock device

摘要

The device has a detecting unit for detecting the position of closing or a predetermined constraint for reopening of a door (1) and for sending a representative detection signal of the predetermined position or constraint to electronic control units. A non-return system (8) is controlled by the control units for receiving and validating the detection signal. Contact parts are attached with moving units (6b, 6c) or openings (4) of the door so as to prevent reopening of the door during closing and entry in a room (3) in a half-opened position.