Door-closing device

A self-closing door structure includes a frame, a door pivotally mounted on the frame, and an arm also mounted on the frame and pivoting between two stop positions. The first stop position corresponds to a closed position on the door and the second stop position corresponds to an opened position. The door structure additionally includes a spring coupled to the pivotal motion of the arm and acting upon the arm in the direction of the first stop position when the arm is located in a position between the first stop position and a dead center position of the spring. The arm has a driving element for coupling the motion of the door to that of the arm and is disposed for engaging with an engaging point of the door over the course of a closing motion of the door and for disengaging over the course of an opening motion.