Device for contactless magnetic positioning of door leaves to ensure relocking and defined partial opening

Abstract

Device for positioning a door leaf in a door frame, in particular for doors with motor-operated single or multiple locking mechanisms and elastic door seals, characterized in that at least one corresponding pair of magnets, consisting of a first magnetic element and a second magnetic element, is arranged in the door rebate and in the opposite door frame such that the magnetic elements exert an attractive or repulsive force on each other when the door is closed, wherein the magnetic elements are embedded in the rebate or frame in such a way that they do not touch each other when the door is closed and an air gap remains between them, wherein the magnetic attraction or repulsion force is dimensioned to counteract the restoring force of the door seals and to hold the door leaf in the frame after motorized unlocking of the latch.

Description

Technical field and background

[0001] The invention relates to the positioning of door leaves in a frame, particularly when using motorized single or multi-point locking systems. With modern doors featuring elastic seals, the contact pressure often causes the leaf to spring open slightly after motorized unlocking. This prevents reliable automatic relocking, as the latch can no longer engage the strike plate. Problem solving

[0002] The device solves this problem by using corresponding magnetic elements in the door rebate and in the opposite frame. 1. Closing position: The magnets are polarized to exert either an attractive or a repulsive force. In the repulsive position, the door leaf is actively pressed into the frame. This compensates for the sealing pressure without contact across an air gap and keeps the leaf flush closed so that the motorized lock can re-engage. 2. Partial opening: Another magnetic element enables a fixed ventilation position in which the door is held at a defined gap.

Claims

[1] Device for positioning a door leaf in a door frame, in particular for doors with motor-operated single or multiple locking mechanisms and elastic door seals, characterized by , that in the door rebate and in the opposite door frame at least one corresponding pair of magnets, consisting of a first magnetic element and a second magnetic element, is arranged such that the magnetic elements exert an attractive or repulsive force on each other when the door is closed, wherein the magnetic elements are embedded in the rebate or frame in such a way that they do not touch each other when the door is closed and an air gap remains between them, wherein the magnetic attraction or repulsion force is dimensioned such that it counteracts the restoring force of the door seals and holds the door leaf in the frame after a motorized release of the latch. [2] Device according to claim 1, characterized bythat the magnetic elements are designed as neodymium magnets (NdFeB) and are completely concealed under the surface of the door rebate or frame or mounted behind a flush cover. [3] Device according to claim 1 or 2, characterized by , that at least one further magnetic element is arranged in the door frame or in the door rebate in a position offset from the closing position, so that the door leaf is fixed in a partially open ventilation position by magnetic force to the corresponding magnetic element on the leaf. [4] Device according to any one of the preceding claims, characterized by , that the dimensioning of the magnetic elements is chosen so that the holding force decreases progressively when the door is opened manually after overcoming an initial release torque, so that no mechanical friction or permanent resistance occurs during the further opening process.