Locking device with a leaf-restraining device

A locking device for a door having a fixed frame and a leaf comprising:

• a main lock on the leaf with a bolt which can be operated by means of a locking element through a bolt-operating device and a latch which can be operated both by means of the locking element and by means of a door handle through a latch-operating device, the latch being engageable with an edge plate on a side of the fixed frame;
• and
• a leaf-restraining device on the leaf, the leaf-restraining device being separate from the main lock and having a driving pin which is supported in a moveable manner in a housing of the leaf-restraining device by means of a driving-pin-operating device moveable between a release position and a driving position and which, when the leaf is closed, is disengaged from an engagement section of a gap limiter attached to the fixed frame in a release position of the driving pin and is engaged with the engagement section of the gap limiter in a driving position of the driving pin in order to move the gap limiter, on opening of the leaf, until a maximum possible gap position of the leaf, determined by the gap limiter, is reached, with the main lock and the leaf-restraining device being connected to each other in such a manner that the driving pin can be moved, from the main lock, from the driving position to the release position by means of the locking element, wherein from the main lock, the driving pin can only be moved from the driving position to the release position by operating the latch by means of the locking element, and not by operating the latch by means of the door handle, nor by operating the bolt by means of the locking element.