Abstract: An engagement device ensures that a plug portion (1) is held, secure against tension, in a sleeve portion (3). The engagement device has at least one locking catch (5) which is able to be engaged behind a locking element (6) when the plug portion is completely inserted. To release the lock, a releasing lever (7) is provided next to the locking element (6), with which the locking catch is able to be disengaged from the locking element. This releasing lever is formed as a double armed lever which is able to pivot on the plug portion. Through that, no excessive force must be exerted onto the sleeve portion in order to withdraw the plug portion.

Abstract: The sleeve portion (1) contains a sleeve (2), the sleeve openings of which are overlain by moveable protective flaps (6, 6'). The protective flaps are placed under spring tension and are forced out of the closed position into an opened position during insertion of a plug ferrule (3) into the sleeve (2). The protective flaps have the effect that, when a plug is withdrawn out of the sleeve portion, no light can be emitted from the sleeve opening. The pivotable mounting of the protective flaps ensues between an inner sleeve housing (8) and an outer sleeve housing (9).

Abstract: The connector pin (2) is protected by a lid (6) which is opened into the sleeve portion (3) when the plug portion (1) is slid in linearly. For this purpose, a sleeve portion is provided with a control path, for example in the form of guide grooves (30), which coordinates with the cover (6). When withdrawing the plug portion (1), the lid (6) is once again closed with the aid of the control path.