DOOR ARRANGEMENT

Abstract

A door arrangement has a door frame, a door leaf, door hinges and a magnetic closure device, wherein the door hinges are fastened on a hinge side of the door leaf and join the door leaf swivelably with the door frame. The door frame has, as a stop for the door leaf in the closed position, a step, which has a stop arm overlapping the door leaf in the closed position and a lateral arm extending outside the door leaf. The closure device on the door frame is formed from a magnet arrangement as well as a portion of magnetic material on a rim of the door leaf. The magnet arrangement is disposed on the lateral arm in such a way that a clear gap remains between the magnet arrangement and the portion of magnetic material disposed on the rim of the door leaf.

Claims

1. A door arrangement comprising: a door frame; a door leaf; door hinges fastened in a hinge side of the door leaf and swivelably joining the door leaf with the door frame; and a magnetic closure device comprising a magnet arrangement, as well as a portion of magnetic material on a rim of the door leaf, for retaining the door leaf in a closed position; wherein the door frame has, as a stop for the door leaf in the closed position, a step, which has a stop arm overlapping the door leaf in the closed position and a lateral arm extending outside the door leaf, and wherein the magnet arrangement is disposed on the lateral arm in such a way that a clear gap remains between the magnet arrangement and the portion of magnetic material disposed on the rim of the door leaf.

2. The door arrangement according to claim 1, wherein the door leaf is made of glass.

3. The door arrangement according to claim 1, wherein the door leaf has a handle opening or a fixed handle on a side opposite the hinges.

4. The door arrangement according to claim 1, wherein the portion of magnetic material is made from a sheet-metal strip or sheet-metal angle piece.

5. The door arrangement according to claim 1, wherein precisely one closure device is provided, which is disposed at a middle height of the door leaf.

6. The door arrangement according to claim 1, wherein the magnet arrangement has a plurality of magnets, which are disposed in a row.

7. The door arrangement according to claim 6, wherein the magnets have an alternating pole alignment.

8. The door arrangement according to claim 6, wherein the magnets have a cylindrical shape.

9. The door arrangement according to claim 1, wherein the magnet arrangement has a positioning mechanism, with which the gap between at least one magnet of the magnet arrangement and the portion of magnetic material is adjustable.

10. The door arrangement according to claim 9, wherein the magnet arrangement has a fastening plate fastened to the door frame and a carrier plate configured to be positioned relative to the fastening plate and which carries the at least one magnet.

11. The door arrangement according to claim 10, wherein the magnets have a cylindrical shape and wherein the fastening plate has openings, through which magnets are passed.

12. The door arrangement according to claim 10, wherein the carrier plate can be positioned with two spindles relative to the fastening plate.

13. The door arrangement according to claim 10, wherein the fastening plate is made of a nonmagnetic material.

14. The door arrangement according to claim 10, wherein the carrier plate is made from magnetic material.

15. The door arrangement according to claim 1, wherein a door seal is disposed on the step of the door frame.

16. The door arrangement according to claim 15, wherein the door seal is held in a seal groove machined in the stop arm.

17. The door arrangement according to claim 15, wherein the door seal conceals the magnet arrangement at least partly when the door leaf is open.

18. The door arrangement according to claim 1, wherein the door arrangement forms a building interior door.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The invention will be explained below on the basis of drawings, which are merely exemplary, wherein:

[0039] FIG. 1 shows a door arrangement with a closed door leaf and two magnetic closure devices on a side of the door leaf opposite the hinges,

[0040] FIG. 2 shows the door arrangement according to FIG. 1 with merely one magnetic closure device at alternative positions,

[0041] FIG. 3 shows a magnet arrangement of the magnetic closure device mounted on a door frame of the door arrangement,

[0042] FIG. 4 shows the portion of the door arrangement illustrated in FIG. 3 in a partly cutaway view rotated by 90?,

[0043] FIG. 5a shows a horizontal section through the door arrangement in the opened condition, and

[0044] FIG. 5b shows a horizontal section through the door arrangement with a closed door leaf.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0045] FIG. 1 shows a door arrangement with a door frame 1, a door leaf 2, two door hinges 3 and two magnetic closure devices 4. In the illustrated closed condition, the door leaf 2 is positioned in a plane defined by a first horizontal direction X and the vertical Z.

[0046] Within the scope of the invention, the terms hinge side and side opposite the hinges refer to the rims of the door leaf 2, which are spaced apart from one another along the first horizontal direction X by the width of the door leaf 2. Accordingly, the door hinges 3 are located on the hinge side, while the two closure devices 4 are located on the side opposite the hinges. As will be explained in more detail below, the door leaf 2 is stopped in the closed position via a door seal (see below with reference to FIGS. 5a and 5b) against a step 6 of the door frame 1.

[0047] As will be explained in more detail below, magnet arrangements 7 of the magnetic closure device 4 at the side of the door leaf 4 are inserted in lateral arm 8 extending on the door frame 1 outside of the door leaf 2. The magnet arrangements 7 respectively have a plurality of magnets 9, wherein a portion 10 of magnetic material is disposed at the height of the magnet arrangement 7 on the door leaf 2. The portion 10 may be constructed as sheet-metal strips or sheet-metal angle pieces and may extend approximately over the same height as the magnet arrangement 7.

[0048] It is already evident in FIG. 1 that, for each magnetic closure device 4 between the magnet arrangement 7 and the portion of magnetic material 10, a clear gap remains along the first horizontal direction, and so the portion 10 of magnetic material is not stopped against the magnets 9. Accordingly, given the closing function according to the invention, both noise production and also a wear or an attrition are reliably avoided.

[0049] By virtue of the magnetic closure device 4, no lock with a lock case and a lock latch is necessary for the illustrated door arrangement in the form of a building interior door.

[0050] In opening direction, the door leaf 2 may be simply pushed or pulled open. For this purpose, a handle opening 11 in the door leaf 2 of glass is illustrated by way of example in FIG. 1, wherein alternatively a fixed handle in the form of a knob or bow may be disposed on at least one face or preferably on both faces of the door leaf 2. The portion 10 of magnetic material, which preferably is formed as sheet-metal strips or sheet-metal angle pieces, as well as a fixed handle may be adhesively bonded in particularly simple manner in a door leaf 2 of glass.

[0051] FIG. 2 is intended to show that different configurations may be considered for the positioning of the closure device 4. In particular, the door arrangement may merely have one single magnetic closure device 4, which is disposed, for example, at height of the handle opening 11. Although an arrangement of the at least one magnetic closure device 4 on the side opposite the hinges is preferred, a different arrangement, for example in a lintel region above the door leaf 2, is also possible, wherein a corresponding arrangement is indicated as a dot-dash line in FIG. 2.

[0052] Further details of the magnet arrangement 7 as a component of the magnetic closure device 4 are apparent from FIGS. 3 and 4. From a comparative examination of FIG. 3 as well as of FIG. 4, it is evident that the magnet arrangement has a fastening plate 12 fastened to the door frame 1, especially to the lateral arm 8, as well as a carrier plate 13, which can be positioned relative to the fastening plate 12 and which carries the magnets 9.

[0053] In the illustrated exemplary embodiment, five circular cylindrical magnets 9 are disposed, by way of example, one above the other in a row along the vertical direction Z, in which case commercially available standard constructions may be used.

[0054] The fastening plate 12 is fastened rigidly on the lateral arm 8 of the step 6 of the door frame 1 by screws 14, while the carrier plate 13 carrying the magnets 9 can be positioned by means of adjusting spindles 15 relative to the fastening plate 12, and thus the entire door arrangement can be positioned along the first horizontal direction X. By an actuation of the adjusting spindles 15, the magnets 9 are therefore moved along the first horizontal direction X, wherein, when a door leaf 2 is closed, the gap remaining relative to the portion 10 of magnetic material may be made larger and smaller. In this way, it is possible to adjust the closing forces of the magnetic closure device 4.

[0055] In FIGS. 3 and 4, it is also evident that the fastening plate 12 has openings, through which the magnets 9 are guided.

[0056] The specific structural shape of the magnet arrangement 7 as well as the configuration of the positioning is purely exemplary.

[0057] According to FIG. 4, the magnets 9 disposed one above the other have an alternating polarity. The magnets 9 are aligned along the first horizontal direction X and, when a door leaf 2 is closed, point in the direction of the portion 10 of magnetic material, which is then adjacent.

[0058] In order to permit an easy movement of the magnets 9 and to prevent an impairment of the closing forces, the fastening plate 12 is expediently made from a nonmagnetic metal. In contrast, the carrier plate 13 is preferably made from a magnetic material, especially a ferromagnetic material, in order to form a kind of magnetic yoke element. Thereby the closing forces may also be enhanced, and undesired magnetic stray fields are also reduced.

[0059] Individual magnetic-field lines are illustrated by way of example in FIG. 4, wherein the door leaf 2 is open and thus the field lines are able to emerge on the front side of the magnet arrangement 7. Due to the alternating polarities of the magnets 9, however, a large zone of influence of the magnetic forces, which may be disadvantageous for a user, is prevented.

[0060] The arrangement of the at least one magnetic closure device 4 on the door arrangement is illustrated particularly clearly in FIGS. 5a and 5b. Accordingly, the door frame 1 has the step 6 described in the foregoing, in order to form a stop for the door leaf 2. This step comprises a stop angle-piece 16, against which the rim of the door leaf 2 bears via the door seal 5. For this purpose, the door seal 5 is held in a seal groove 17 machined in the stop angle piece 16.

[0061] In FIG. 5b, which shows the door leaf 2 in its closed position, the clear gap is evident between the magnets 9 of the magnet arrangement 7 on the one hand and the portion 10, configured as a sheet-metal angle piece, of magnetic material.

[0062] Since the magnet arrangement 7 is inserted in the lateral arm 8, it is hardly perceptible for the user, especially when the door leaf 2 is closed. The same is also true for the portion 10 of magnetic material, which in the closed position of the door leaf 2 is also covered at least partly by the door seal 5.

[0063] According to the horizontal section of FIGS. 5a and 5b along the first horizontal direction X as well as the second horizontal direction Y, the stop angle piece 16 as well as the lateral arm 8 on the step are disposed at right angles to one another. The inconspicuous integration of the magnet arrangement 7 in the lateral arm 8 is also supported by the fact that, in the illustrated exemplary embodiment, the magnet arrangement 7 is partly concealed by the door seal 5 when the door leaf 2 is open.

[0064] It is also evident from FIGS. 5a and 5b that the door leaf 2 can be disposed, in simple manner, flush with a front side 18 of the door frame 1, by an appropriate modification of the geometry.