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US 7,296,380 B2Granted
Device for operating a door leaf or the like and door structure provided with such a device
AssigneeBesam International HP
InventorEric Bäckman
Life of this patent
Estimating the term…
Abstract
A device for opening and closing a pivotally mounted door leaf including an actuator, which is displaceably and/or rotatingly arranged in a housing and connected to the door leaf and which, during displacement/rotation, actuates the door leaf, and a drive motor which is connected to the actuator for providing displacement/rotation thereof.
Claims14
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.
Dependencies are inferred from the claim text.