Patent ID: 7356878
Filing Date: 2008-04-15
Classification: E05F,E05Y,Y10T

Abstract:
1. A door closer apparatus for mounting on a door frame so as to move the door between an open position and a closed position, the apparatus comprising: an anchoring means for mounting on the door frame, an actuating means for mounting within the thickness of the door in which the door is hinged for movement between the open and closed positions relative to the door frame, an operating member coupled by a linkage to the anchoring means and mounted for a range of movements between a retracted position in which the anchoring means is held adjacent to the actuating means and an extended position in which the anchoring means is in spaced relation to the actuating means; a resilient driving means arranged for exerting a driving force on the operating member to drive the operating member towards the retracted position and thereby draw the anchoring means and the actuating means together such that the door is drawn into its closed position relative to the frame; a damping means operatively connected to the operating member for damping movement of the operating member at least in a direction towards the retracted position as the door is drawn closed by the driving means; a resilient thrusting means arranged for exerting an increased driving force on the operating member over a defined part of its range of movement as the operating member approaches the retracted position so as to correspond to movement of the door over a final portion of the movement into the closed position, said resilient thrusting means comprising: