Centralised controlmechanism with incorporated security means used in an airtight transfer device between two enclosures.

摘要

In a double-door device, for airtight transfer between two enclosures, a centralised control mechanism (28) with incorporated security means is provided. This mechanism (28) comprises a movable control member (36), placed opposite a hinge of one (22) of the doors, facing a piece (42) linked to this door (22). The mechanism incorporates four mechanical locks (48, 62, 78, 92). Two of them (48, 62) prevent any opening operation as long as a second door is not present and as long as a second flange is not entirely connected to the flange carrying the control member (36). A third lock (78) prevents any disconnection of the two flanges after passage beyond an intermediate locking position by the control member (36). Finally, a fourth lock (92) prevents the control member (36) from returning to its initial position when the doors are opened.