Patent ID: 9121198
Filing Date: 2015-09-01
Classification: E05B,Y10T

Abstract:
1. Door opener which can be set up both for closed-circuit current operation and for open-circuit current operation, the door opener having a door opener latch, a switchover means which is mounted such that it can move in a rotary bearing for the purpose of blocking and releasing the door opener latch, an armature which can be adjusted about a rotary bearing for the purpose of blocking or releasing the switchover means, an electromagnet for adjusting the armature, and a restoring spring which moves the armature to an inoperative position when the electromagnet is in the unenergized state, with the switchover means having a head section which faces the armature and a blocking cross section on the head section, and the switchover means having an adjacent release cross section which is recessed behind the blocking cross section and which faces the rotary bearing of the switchover means, with the armature having a central section and a blocking recess in the central section, said blocking recess merging with a release recess in the end section which is averted from the rotary bearing, and with the blocking cross section of the switchover means corresponding to the blocking recess of the armature and the release cross section of the switchover means corresponding to the release recess of the armature, the door opener being characterized in that a distance between the rotary bearing of the switchover means and the rotary bearing of the armature can be varied, wherein the rotary bearing of the switchover means is arranged on or at a displacement element which can be displaced parallel to the longitudinal axis of the switchover means between a first position (A) for open-circuit current operation and a second position (B) for closed-circuit current operation, or wherein the rotary bearing of the armature is arranged on or at a displacement element which can be displaced transverse to the longitudinal axis of the armature between another first position (A) for open-circuit current operation and another second position (B) for closed-circuit current operation.