Patent ID: 9255425
Filing Date: 2016-02-09
CPC Classification: E05B,Y10T

Claim Text:
1. A door closing device for a door having a door leaf mounted movably to a stationary door frame, the device comprising: a catch device for mounting to the stationary door frame, the catch device being at least one of externally powered or spring force-powered, and a counterpart element co-operating with the catch device for pulling the door leaf shut, for mounting to the door leaf, wherein a) the catch device has a catch element which is mounted movably and a drive assembly connected to the catch element, wherein the drive assembly is at least one of externally powered or force storage means-powered, b) the counterpart element is in the form of a lock latch which can be overridden upon closure of the door and which is mounted at the door leaf side on a spring and has an inclined portion which comes into operation in the closing movement, c) the drive assembly functions as a motor assembly for pulling the door leaf shut and in addition forms a locking device of a door opener to arrest the door leaf in the closed position, d) the catch element is in the form of a pivotable door opener latch co-operating with a drive output member of the drive assembly, wherein the door opener latch is formed by a mounting body and a latch body movable relative to and mounted displaceably on the mounting body, and wherein the latch body can be fixed on the mounting body by means of an arresting device actuable by way of direct contact with the lock latch, e) for pulling the door leaf shut the door opener latch can be connected to and disconnected from the lock latch so that the door opener latch can be brought into engagement with the lock latch in the pulling-shut range of the door leaf and can be brought out of engagement with the lock latch outside the pulling-shut range, and f) for arresting the door leaf in the closed position of the door the locking device co-operates directly or indirectly with the door opener latch in such a way that the door opener latch is switchable into a locking position in which the door opener latch is blocked against a pivotal movement and a release position in which the door opener latch is released for pivotal movement.