US Patent 9572410 Mechanical closure having a locking device

The invention relates to a lock device, having a first connecting module and a second connecting module. The first connecting module can here be arranged in a closing direction on the second connecting module and is mechanically catch-lockingly engaged in a closing position with the second connecting module, and the first connecting module can be detached from the second connecting module by a movement of the first connecting module or of a part of the first connecting module in an opening direction, which differs from the closing direction. Here, a locking device (7; 9, 9a-f) is provided to prevent a movement of the first connecting module (1) or of the part (1a) of the first connecting module (1) in the opening direction (Y), when the first connecting module (1) and the second connecting module (2) are positioned in the closing position, wherein the locking device (7, 9, 9a-f; 100, 101, 102; 206, 207) can be unlocked to move the first connecting module (1) or the part (1a) of the first connecting module (1) in the opening direction (Y).