Patent ID: 7296380
Filing Date: 2007-11-20
Classification: E05F,E05Y,Y10T

Abstract:
1. A device for opening and closing a pivotally mounted door leaf, comprising: the door leaf; and an actuator, which is at least one of displaceably and rotatably arranged in a casing and connected to the door leaf and which, during at least one of displacement and rotation, actuates said door leaf, and a drive motor which is connected to the actuator for providing at least one of displacement and rotation thereof, the actuator including a first element which is connected to the door leaf, and a second element which is connected to the drive motor, wherein the first and second elements are interconnected by a biased spring in such manner that a movement of the door leaf and a rotary movement of the drive motor, respectively, are taken up by and stored in the biased spring independently of each other, the biased spring being enclosed by the second element.