The invention relates to a door opener unit, comprising a receiving space for a latch of a door lock, a pivot latch with a locking block which locks or releases the latch in a defined manner in a door opening direction, and a latch guide surface along which the latch slides during the opening of the door until exiting from the receiving space. It is provided in accordance with the invention that the locking block of the pivot latch is arranged in a trapezoid manner with respect to its outline and the latch guide surface comprises a recess in which said trapezoid locking block can enter during the opening of the door.