Door leaf has projection portion that is connected with hole to form an inaccessible latching connection, and adhesive which is applied to lock side of groove to reinforce the latching connection in hardened state

摘要

The door leaf (1) has a cover plate (2) and a metal box (3) that are connected on a lock side through a groove (5) and a bar (4). The groove and the bar are provided with a hole (6) and a projection portion (9). The projection portion is connected with the hole to form an inaccessible latching connection at outer side of the door leaf. An adhesive (10) is applied to the lock side of the groove to reinforce the latching connection in the hardened state.