System to guide the slats of an industrial roller door to reduce damages after crash
AssigneeAssa Abloy Entrance Systems AB
InventorFriedhelm Frede
Life of this patent
Estimating the term…
Abstract
A method and apparatus for preventing damage to an industrial door during an impact, the apparatus including a roller door having a plurality of lamellae, and a plurality of end pieces connectable to the lamellae. The industrial door also includes a drive system, connectable to the plurality of end pieces for raising and lowering the door. The lamellae include a plurality of openings formed therein and, arranged on at least one distal end thereof. The end pieces include a plurality of friction fit security devices for engaging the openings.
Claims11
An industrial door comprising:
- a plurality of lamellae;
- a plurality of end pieces connectable to the lamellae,
- a drive system connectable to said plurality of end pieces for raising and lowering the roller door;
- a plurality of openings formed in the lamellae, arranged on at least one distal end thereof;
- and
- a plurality of friction fit security devices formed on the end pieces, for engaging the openings.
A method of preventing damage to a roller door comprising the steps of:
- providing a roller door including a plurality of lamellae, a plurality of end pieces connectable to the lamellae, a drive system connectable to the plurality of end pieces for raising and lowering the roller door, a plurality of openings formed in the lamellae arranged on at least one distal end thereof, a plurality of friction fit security devices formed on the end pieces, and at least one guide,
- inserting the lamellae onto the end pieces so that the friction fit security devices engage the openings formed on the lamella,
- wherein in the event of an impact damage to the door is prevented by the steps of:
- sliding of the end piece in a direction towards the guides, until the guides are impacted by a wind anchor formed on the end piece;
- overcoming the friction force holding the friction fit security device in the opening;
- and
- sliding the lamellae away from the end piece.
Dependencies are inferred from the claim text.