EP4299868A1 - Holding device for a door and functional unit with a holding device - Google Patents

Abstract

The holding device (2), which is used to hold a rotatably held door element (111), which forms a single door (11') or, together with an additional element (112), a folding door (11), in a closed position and to release the door element (111 ) serves from the closed position, can be connected to the door element (111) and can be moved into a holding position by a first pressure action and into a release position by a second pressure action. According to the invention, the holding device (2) comprises a mounting part (21) with a mounting body (211), which on the one hand can be connected to the door element (111) and on the other hand through a lever shaft (23) and away from the lever shaft (23) through a coupling unit (25 ) is connected to a lever body (221) of a holding lever (22), which is rotatable about the lever shaft (23) relative to the mounting body (211) and which has a holding magnet (282) on a front piece (2219) facing away from the lever shaft (23). which, in the closed position of the door element (111), can cooperate with a stationary magnetic or ferromagnetic contact element (20) in order to hold the door element (111) in the closed position, and that the coupling unit (25) comprises a coupling lever (253). , which is connected at one end to a central shaft (251) and at the other end to a coupling shaft (251), which are aligned parallel to one another, the central shaft (251) being rotatable in the lever body (221) or in the mounting body (211) and the Coupling shaft (251) is displaceably held in at least one guide track (2112) of the mounting body (211) or the lever body (221) and in a coupling track (2460) of a coupling part (246) which is held by a force transmitter (241) which is in a locking unit (24) can be cyclically displaced by the action of pressure between a locking position (p1), in which the holding device (2) reaches the holding position, and a release position (p2), in which the holding device (2) reaches the release position.

Description

The invention relates to a holding device for a door, in particular for a folding door or sliding folding door, which can be actuated by the action of pressure, and to a functional unit, in particular a piece of furniture, with a door, in particular with a folding door or sliding folding door, which is provided with at least one holding device.

To close functional units, such as openings of rooms or pieces of furniture, folding doors or folding doors, possibly sliding folding doors or folding sliding doors, are often used, which, after the opening has been released, are preferably moved into a door compartment or into a parking space in order not to disturb to appear.

The US9284761B2 discloses a piece of furniture with a displacement device, by means of which a mounting profile connected to a folding sliding door can be displaced within a door compartment. The folding sliding door comprises two door elements, of which the first door element is connected at the back by stop hinges to a mounting profile and at the front by folding door hinges to the back of an additional element or the second door element, which is connected at the front to a drive which can be moved along a running rail has two rail sections aligned perpendicular to each other and connected to one another by a curve section, of which a first rail section runs into the door compartment and a second rail section runs along the front of the piece of furniture. The mounting profile is held in a vertical orientation by a support device and is provided with guide tracks on the top and bottom, which are guided by guide rails.

To close the piece of furniture, the folding door is extended from the door compartment and unfolded. In the closed position, the door elements are aligned planar to one another. To open the piece of furniture, the folding door is folded again, with the door elements being inserted into the door compartment in an open position, preferably aligned parallel to one another.

In the closed position, the folding door must be kept in a planar orientation so that a folding process is not triggered automatically. After opening the folding door from the closed position, it would also be desirable if the folding process were carried out automatically.

The DE202018100262U1 discloses a holding device that can be actuated by pressure and which supports both the holding of the folding door in the closed position and the folding process after the folding door has been released from the closed position. This device comprises a first fitting part which is connected to the first door element of the folding door and a second fitting part which is connected to the second door element of the folding door. Between the first fitting part and a coupling device arranged on the second fitting part there is an ejection element which is movably connected to the first fitting part and the coupling device. The first fitting part is adjusted relative to the coupling device via an energy storage device which is to be loaded manually by the user and which acts against the ejection element. A triggering device is connected to the second door leaf via a connecting cable. The locking device is unlocked by applying pressure to the planar-aligned door elements, whereby they are further pushed out of the planar alignment in the closing direction.

This device has a complex structure and requires numerous device parts, of which a first group has to be connected to the first door element and a second group has to be connected to the second door element. Furthermore, device parts are provided which connect the two fitting parts and thus the two door elements with one another and of which first device parts are mechanically guided with appropriate effort and second device parts are held loosely, which is generally not desirable. The door elements of the folding door are also held in the closed position solely by the holding device, which is why measures are required to counteract accidental unlocking. Due to the use of two fitting parts, care must also be taken to ensure that they are connected to the first and second door elements at the correct distance from one another and in the correct mutual orientation and height. It should also be noted that this device takes up a lot of space, which is disadvantageous when there is usually limited space within the piece of furniture and in particular within a door compartment.

Furthermore, the holding device is only suitable for use with folding doors, so that an additional holding device is required for doors with only one door element.

The present invention is therefore based on the object of creating an improved holding device.

By means of the holding device, a door element that forms a single door or, together with an additional element, a folding door, possibly a folding sliding door, should be held in a closed position and can be released from the closed position. Furthermore, a functional unit, in particular a piece of furniture, is to be created with a door element that forms a single door or, together with an additional element, a folding door, possibly a folding sliding door, which is equipped with at least one such holding device.

The holding device should have a simple structure and have as few device parts as possible, so that the holding device can be manufactured at low cost.

The holding device should also be implemented with small dimensions, so that the holding device takes up little space in the closed position with the individual door closed or with a planar alignment of the door elements of the folding door and also with parallel alignment of the door elements of the folding door. The usable space available to the user should therefore be optimized in that the holding device does not protrude far into the usable space and in that a door compartment for the held door can be realized with the smallest possible dimensions.

The holding device should be able to be easily mounted in the functional unit, if necessary in a piece of furniture. Mutual alignment of device parts should be avoided or at least significantly simplified.

The holding device should reliably hold the door, if necessary the folding door, in the closed position without additional measures and support the opening process, if necessary the folding process, after the door has been released from the closed position.

This object is achieved with a holding device according to claim 1 and a functional unit, possibly a piece of furniture, according to claim 12, which is equipped with at least one such holding device. Advantageous embodiments of the invention are specified in further claims.

The holding device, which serves to hold a rotatably held door element, which forms a single door or, together with an additional element, a folding door, in a closed position and which serves to release the door element from the closed position, can be connected to the door element and through a first pressure action can be moved into a holding position and by a second pressure action into a release position.

According to the invention, the holding device comprises a mounting part with a mounting body, which on the one hand can be connected to the door element and which, on the other hand, is connected by a lever shaft and away from the lever shaft by a coupling unit to a lever body of a holding lever, which is rotatable about the lever shaft relative to the mounting body and which a front piece facing away from the lever shaft holds a holding magnet, which in the closed position of the door element can cooperate with a stationary magnetic or ferromagnetic contact element in order to hold the door element in the closed position, and that the coupling unit comprises a coupling lever which has one end with a Central shaft and at the other end is connected to a coupling shaft, which are aligned parallel to one another, the central shaft being rotatable in the lever body or in the mounting body and the coupling shaft being displaceably held in at least one guide track of the mounting body or the lever body and in a coupling track of a coupling part which is of a force transmitter is held, which can be cyclically displaced in a locking unit by the action of pressure between a locking position in which the holding device reaches the holding position and a release position in which the holding device reaches the release position.

The holding device is advantageously constructed with only a few device parts and can therefore be manufactured inexpensively and easily assembled.

The holding device can advantageously be mounted on just one door element, possibly on a door element of a folding door or folding sliding door. It is therefore not necessary to assemble device parts on a first and a second door element, to correctly align and position them with one another and to connect them to one another. The assembly of the holding device itself on the assigned door element is also not critical and can be carried out with simple measures. All that needs to be ensured is that the holding magnet of the holding device can interact with the stationary magnetic or ferromagnetic contact element in the closed position of the door, possibly the folding door. The holding device can therefore be used universally and can also be subsequently mounted on functional units or pieces of furniture that have already been installed.

The force transmitter is preferably an actuating piston, which is preferably axially guided in a cylindrical housing. The force transmitter, however, can also be rod-shaped or have a different shape.

The mounting part and the holding lever can preferably be recessed into one another, so that the holding device takes up little space in the closed position or in a parking position in which the door elements of a folding door are folded against one another. In the closed position or the parking position, the mounting part is sunk into the holding lever or the holding lever is sunk into the mounting part, which is why the dimensions of the entire holding device are preferably determined solely by the dimensions of the mounting part or the holding lever.

The mounting body is preferably at least partially U-shaped and comprises two side walls connected to one another by a body center piece, which delimit a receiving chamber in which the locking unit is completely or partially accommodated and held in a non-positive or positive manner. Alternatively, the locking unit can also be arranged in the holding lever.

When arranging the locking unit within the U-profile-shaped mounting body, each of the side walls preferably has a guide track, so that the coupling lever is securely guided on both sides in the two guide tracks, which lie opposite one another and run parallel to one another. When arranging the locking unit within the U-profile-shaped lever body, each of the side parts of the lever body preferably has a guide track, so that the coupling lever is securely guided on both sides in the two guide tracks, which lie opposite one another and run parallel to one another.

The guideway or guideways have a straight or curved course. The guide tracks preferably have a V-shaped course with track ends that face the coupling unit. In this way it can be ensured that a high force can be transmitted to the force transmitter during the closing process. At least the track section of the guide tracks, which is traversed by the coupling shaft at the beginning of the closing process, is therefore preferably inclined with respect to the longitudinal axis of the mounting part. The angle of inclination of this track section is preferably around 45°. The section of the guideways that the coupling shaft passes through first during the opening process runs preferably also inclined, which results in a greater web length without taking up more space in the axial direction.

The length of the guide tracks is preferably selected such that the force transmitter can be displaced beyond the locking position into a transition position at least during the second pressure action. This enables a so-called over-pressing of the folding door in the closing direction in order to couple a holding element into an anchoring or to release it from the anchoring.

Preferably, the force transmitter is supported within the locking unit by a spring element, which counteracts the pressure effect of the coupling shaft on the force transmitter and, after it has been released from the locking position and transferred to the transition position, automatically moves the force transmitter back into the release position in which the holding lever is opposite is swung out from the mounting part.

The corresponding force for mutual rotation of the mounting part and the holding lever can also be exerted by an external force source. In preferred embodiments, a further spring element can also act on the mounting part and the holding lever. For example, a spring, for example a coil spring, is arranged in the area of the lever shaft and/or away from the lever shaft. Furthermore, a leaf spring can be provided between the mounting part and the holding lever.

The locking unit is preferably adjustable and, for this purpose, comprises an adjusting part with an engagement element, which can be actuated by means of a tool, which can preferably be inserted into the receiving chamber through an adjusting channel provided in the mounting body. For example, reaching the locking position or the transition position can be adjusted using the tool.

The coupling part is preferably designed in the shape of a U-profile and comprises two coupling plates, each provided with a coupling track, between which the end piece of the coupling lever provided with the coupling shaft is held. The coupling shaft is therefore preferably guided on both sides by a coupling track and a guide track, which is why no torsional forces act on the coupling shaft and the coupling unit. A compressive force acting on the holding device can therefore be transferred to the locking unit without significant losses. As well The locking unit can transmit forces back via the force transmitter during the opening process with only minimal losses.

The coupling track or tracks give the coupling shaft the freedom to follow the guide track or guide tracks, even if they are not linear. When moving the force transmitter, a blockage of the coupling shaft is always avoided.

The lever body is preferably at least partially U-shaped and comprises two side walls connected to one another by a body center piece, which delimit a lever chamber into which the mounting part can be completely or partially recessed.

In a preferred embodiment, the lever body has a tool channel through which a tool part can be guided in order to actuate a mounting screw guided through the mounting body. This allows the holding device to be assembled and dismantled advantageously.

The lever body of the holding lever preferably holds at least one roller on the front piece facing away from the lever shaft. For example, the front piece is fork-shaped and pierced by a bearing shaft, by means of which one or more rollers are held. The rollers ensure that the front piece of the holding lever cannot collide with a part of the furniture in the closed position and cannot collide with the adjacent door element in the parking position after the folding door has been folded. Rollers can also be dimensioned such that the holding magnet cannot touch the contact element.

In a further preferred embodiment it is provided that the lever body has a magnet chamber into which the holding magnet is sunk.

The magnet chamber is preferably adjoined by a through opening through which a connecting screw is passed, which connects the holding magnet to a threaded part, which is preferably supported on a support spring and which holds the holding magnet in a pivotable manner. The threaded part preferably comprises a threaded pin which is held with play within the through opening. The holding magnet can therefore align itself automatically and interact optimally magnetically with the magnetic or ferromagnetic contact element even if the holding lever is not aligned parallel to the mounting part and/or to the contact element. The holding lever can thus be in the closed position of the folding door relative to the mounting part still be rotated by an angle of, for example, 1° - 10°, which allows the folding door to be pushed over and the holding device to be released from the holding position. The coupling shaft can therefore be transferred from the locking position to the transition position, in which the mounting part and the holding lever can now actually be aligned parallel to one another with their longitudinal axes.

After releasing the holding device from the locking position, the coupling shaft is returned by spring force along the guide track or along the guide tracks, whereby the holding lever is rotated away from the mounting part and, in this process, is also tilted relative to the contact element, whereby the holding magnet is raised laterally and detached from the contact element can. The holding magnet is therefore not lifted frontally by the contact element, which would require considerable effort, but is gradually detached by slowly inclining, which is possible with little effort. The holding magnet can therefore adhere reliably to the contact element in the closed position and can still be easily detached from the contact element during the opening process.

The contact element is, for example, a ferromagnetic plate, such as a steel plate or an iron plate. The holding magnet designed as a permanent magnet is preferably a rare earth magnet, which consists, for example, of ferrous metals (iron and/or cobalt and/or nickel) and rare earth metals (in particular neodymium, samarium, praseodymium, dysprosium, terbium, or gadolinium). In principle, the contact element can also be a permanent magnet.

The contact element can be an integral part of the functional unit, possibly a piece of furniture, or can be connected to the functional unit at a suitable location. For example, the functional unit includes a ferromagnetic rail or a ferromagnetic cover with which the holding magnet can interact magnetically.

Direct physical contact between the holding magnet and the contact element is not necessary and is preferably avoided by covering the holding magnet on the side facing the contact element and/or the contact element on the side facing the holding magnet with a protective layer, for example made of plastic. The holding magnet and/or the contact element can also be recessed in an adjacent part, so that contact is excluded.

The holding magnet is preferably held in a magnetic cup, which is preferably made of plastic and slightly projects beyond the holding magnet and comes into contact with the contact element in the closed position of the door. Impacts and disturbing noises are avoided by the impact of the preferably elastically designed and/or elastically mounted magnetic cup on the contact element. However, the magnetic coupling of the holding magnet to the contact element still results in a stable connection through which the door is held securely in the closed position.

The lever body preferably comprises a magnetic chamber in which the holding magnet and preferably the magnetic cup are held. The holding magnet can therefore be completely recessed into the holding lever or the front piece of the holding lever without taking up additional space. The holding magnet is preferably cylindrical and held in the correspondingly sized magnet chamber.

Preferably, a connecting screw is inserted through a through opening in the holding lever and into an elastic threaded part, which is preferably held in a holding chamber on the other side of the holding lever, so that it does not protrude beyond the holding lever. The threaded part preferably comprises a holding plate with a threaded pin into which the connecting screw is screwed and which is preferably passed through the through opening to the magnet chamber. Due to the play of the threaded pin within the through opening and the flexible mounting of the holding plate by means of a support spring, the threaded pin can be tilted to the side. With the connecting screw, the holding magnet can also be tilted to the side in order to automatically align itself optimally with respect to the holding element. The preferably spiral-shaped support spring is compressed accordingly.

The functional unit, a building unit that can be locked by at least one door or a folding door, or a piece of furniture that can be locked by at least one door or a folding door, typically comprises at least one door compartment in which the folded folding door can be parked. The functional unit can, for example, have a door with only one door leaf and an associated first door compartment as well as a folding door with two door elements that can be folded against each other and a second door compartment. The functional unit can also have two single doors or two folding doors.

A folding door comprises two door elements that are connected to one another by folding door hinges and can be rotated relative to one another about an axis of rotation, one of which is connected to a holding device according to the invention in such a way that the holding magnet can interact with the stationary magnetic or ferromagnetic contact element in the closed position of the folding door, which is connected to a part is firmly connected to the functional unit or forms a structural element of the functional unit.

The holding device is preferably mounted on the underside or the top of one of the door elements and is aligned parallel to the lower edge or upper edge of the associated door element and faces the functional unit with the holding lever and the holding magnet. If the contact element is attached elsewhere, for example at half the height of the cabinet, for example on an intermediate floor, the holding device can also be attached at this height.

Preferably, at least one of the folding door hinges is equipped with a hinge spring, which rotates the hinge levers of the folding door hinge, which are connected to one another by a hinge axis, against one another, so that the hinge spring is tensioned when the hinge levers are rotated apart in the closed position of the folding door. As soon as the holding device is released from the closed position, the folding door hinges support the folding process of the folding door.

The hinge spring preferably comprises two spring assemblies connected to one another by a spring center piece, which enclose the hinge axis and each rest with a spring end piece on the first hinge lever, while the spring center piece rests on the second hinge lever. The spring assemblies are preferably helical or spiral-shaped.

Preferably, at least one of the stop hinges, which is connected to a one-piece door or to a folding door, is equipped with a hinge spring.

The opening process of the one-piece door or the folding process of the folding door is therefore preferably supported, starting from the closed position, by at least one stop hinge and/or at least one folding door hinge.

The functional unit, possibly the piece of furniture, can be designed in any way. Preferably, the door element is connected at one edge by stop hinges to a mounting profile, which is displaceable within a door compartment of the piece of furniture, and at one opposite edge connected by folding door hinges, if necessary with an additional element or a second door element. The second door element is preferably connected at an edge remote from the folding door hinges to a guide drive which is guided in a guide rail which runs along the front of the piece of furniture and from which the magnetic or ferromagnetic contact element is preferably held.

Fig. 1

eine erfindungsgemässe Funktionseinheit 1 in der Ausgestaltung eines Möbelstücks mit einer Falttür 11 mit zwei Türelementen 111, 112, die mit einer erfindungsgemässen Haltevorrichtung 2 ausgerüstet und in ein erstes Türfach 10 einschiebbar ist, und mit einer Tür 11 mit nur einem Türelement 111, die mit einer erfindungsgemässen Haltevorrichtung 2 ausgerüstet und in ein zweites Türfach 10 einschiebbar ist;

Fig. 2

die Rückseite der Falttür 11 des Möbelstücks 1 von Fig. 1 mit dem ersten Türelement 111, das an der nachlaufenden Kante durch Anschlagscharniere 13 mit einem Montageprofil 12 und an der vorlaufenden Kante durch Falttürscharniere 3 mit einem Zusatzelement bzw. einem zweiten Türelement 112 verbunden ist und an dem eine erfindungsgemässe Haltevorrichtung 2 montiert ist, die einen Haltemagneten 282 aufweist, der in der Schliessstellung der Falttür 11 mit einem magnetischen oder ferromagnetischen Kontaktelement 20 zusammenwirkt, das von einem Teil des Möbelstücks 1 stationär gehalten ist;

Fig. 3

in Explosionsdarstellung die erfindungsgemässe Haltevorrichtung 2 von Fig. 2, die ein Montageteil 21 mit einem Montagekörper 211, einen Haltehebel 22 mit einem Hebelkörper 221, eine Hebelwelle 23 zur Verbindung des Montagekörpers 211 und des Hebelkörpers 221, eine Anordnung mit einem Haltemagnet 282, eine Verriegelungseinheit 24 sowie eine Kopplungseinheit 25 umfasst, mittels der der Montagekörper 211, der Hebelkörper 221 und die Verriegelungseinheit 24 miteinander koppelbar sind;

Fig. 4

einen Teil der Falttür 11 von Fig. 2 kurz vor Erreichen der Schliessstellung oder kurz nach dem Lösen aus der Schliessstellung;

Fig. 5

die Falttür 11 von Fig. 4 mit dem ersten Türelement 111, das durch einen Schnitt vom Falttürscharnier 3 getrennt ist, und dem zweiten Türelement 112 in paralleler Ausrichtung, in der die Falttür 11 in das zugehörige Türfach 10 eingeschoben werden kann;

Fig. 6a

den Hebelkörper 221 von Fig. 3 mit Blick auf eine Hebelkammer 2210, in die der Montagekörper 211 einsenkbar ist;

Fig. 6b

den Hebelkörper 221 von Fig. 3 mit Blick auf eine Magnetkammer 2218, in die der Haltemagnet 282 von Fig. 3 eingesetzt wird;

Fig. 6c

den Montagekörper 211 von Fig. 3 mit Blick auf eine Aufnahmekammer 2110, in die die Verriegelungseinheit 24 von Fig. 3einsetzbar ist;

Fig. 6d

den Montagekörper 211 von Fig. 3 mit Blick auf die Seite, die mit einem der Türelemente 111, 112 von Fig. 1 verbunden wird;

Fig. 7a

die Frontseite der Haltevorrichtung 2 von Fig. 3 mit dem vom Kontaktelement 20 gelösten Haltemagnet 282 vor Erreichen der Schliessstellung oder nach Verlassen der Schliessstellung;

Fig. 7b

die Frontseite der Haltevorrichtung 2 von Fig. 7a in der Schliessstellung der Tür 11 oder der Falttür 11 von Fig. 1 mit dem Haltemagnet 282, der mit dem Kontaktelement 20 magnetisch gekoppelt ist;

Fig. 7c

die Frontseite der Haltevorrichtung 2 von Fig. 7b während des Vorgangs des Überdrückens, durch den die Haltevorrichtung 2 in die Haltestellung gebracht oder aus der Haltestellung gelöst wird;

Fig. 8

die Haltevorrichtung 2 in der Stellung von Fig. 7a mit einem Längsschnitt durch den Montagekörper 211 und den Hebelkörper 221;

Fig. 9

die Verriegelungseinheit 24 von Fig. 3 in einer prinzipiellen Darstellung;

Fig. 10a

das Falttürscharnier 3 von Fig. 2, das einen ersten Scharnierhebel 31 und einen zweiten Scharnierhebel 32, die durch eine Scharnierachse 33 miteinander verbunden sind, und eine Scharnierfeder 34 umfasst, die in dieser Stellung des Scharniers 3 gespannt ist und mit zwei durch ein Federmittelstück 343 miteinander verbundenen Federpaketen 341, 342 die Scharnierachse 33 umschliesst und mit Federendstücken 3411, 3421 am ersten Scharnierhebel 31 und mit dem Federmittelstück 343 am zweiten Scharnierhebel 32 anliegt; und

Fig. 10b

das Scharnier 3 in Explosionsdarstellung.

The invention is explained in more detail below with reference to drawings. This shows:

Fig. 1

a functional unit 1 according to the invention in the design of a piece of furniture with a folding door 11 with two door elements 111, 112, which is equipped with a holding device 2 according to the invention and can be inserted into a first door compartment 10, and with a door 11 with only one door element 111, which with one holding device 2 according to the invention and can be inserted into a second door compartment 10;

Fig. 2

the back of the folding door 11 of the piece of furniture 1 from Fig. 1 with the first door element 111, which is connected on the trailing edge by stop hinges 13 to a mounting profile 12 and on the leading edge by folding door hinges 3 with an additional element or a second door element 112 and on which a holding device 2 according to the invention is mounted, which has a holding magnet 282, which in the closed position of the folding door 11 cooperates with a magnetic or ferromagnetic contact element 20, which is held stationary by a part of the piece of furniture 1;

Fig. 3

an exploded view of the holding device 2 according to the invention Fig. 2 , which includes a mounting part 21 with a mounting body 211, a holding lever 22 with a lever body 221, a lever shaft 23 for connecting the mounting body 211 and the lever body 221, an arrangement with a holding magnet 282, a locking unit 24 and a coupling unit 25, by means of which the Mounting body 211, the lever body 221 and the locking unit 24 can be coupled to one another;

Fig. 4

part of the folding door 11 from Fig. 2 shortly before reaching the closed position or shortly after releasing from the closed position;

Fig. 5

the folding door 11 from Fig. 4 with the first door element 111, which is separated from the folding door hinge 3 by a cut, and the second door element 112 in a parallel orientation, in which the folding door 11 can be inserted into the associated door compartment 10;

Fig. 6a

the lever body 221 from Fig. 3 looking at a lever chamber 2210, into which the mounting body 211 can be lowered;

Fig. 6b

the lever body 221 from Fig. 3 with a view of a magnet chamber 2218, into which the holding magnet 282 is inserted Fig. 3 is used;

Fig. 6c

the mounting body 211 from Fig. 3 with a view of a receiving chamber 2110, into which the locking unit 24 of Fig. 3 can be used;

Fig. 6d

the mounting body 211 from Fig. 3 looking at the side with one of the door elements 111, 112 of Fig. 1 is connected;

Fig. 7a

the front of the holding device 2 from Fig. 3 with the holding magnet 282 released from the contact element 20 before reaching the closed position or after leaving the closed position;

Fig. 7b

the front of the holding device 2 from Fig. 7a in the closed position of the door 11 or the folding door 11 Fig. 1 with the holding magnet 282, which is magnetically coupled to the contact element 20;

Fig. 7c

the front of the holding device 2 from Fig. 7b during the process of overpressing, by which the holding device 2 is brought into the holding position or released from the holding position;

Fig. 8

the holding device 2 in the position of Fig. 7a with a longitudinal section through the mounting body 211 and the lever body 221;

Fig. 9

the locking unit 24 from Fig. 3 in a basic representation;

Fig. 10a

the folding door hinge 3 from Fig. 2 , which comprises a first hinge lever 31 and a second hinge lever 32, which are connected to one another by a hinge axis 33, and a hinge spring 34, which is tensioned in this position of the hinge 3 and with two spring assemblies 341, 342 which are connected to one another by a spring center piece 343 Encloses hinge axis 33 and rests with spring end pieces 3411, 3421 on the first hinge lever 31 and with the spring center piece 343 on the second hinge lever 32; and

Fig. 10b

the hinge 3 in an exploded view.

Fig. 1 shows a functional unit 1 according to the invention in the design of a piece of furniture 1 with a folding door 11, which is equipped with a holding device 2 according to the invention and can be inserted into a first door compartment 10, and with a one-piece door 11, which is equipped with a holding device 2 according to the invention and into a second Door compartment 10 can be pushed in. The piece of furniture 1 preferably has side walls 1A, a top floor 1B, a bottom floor 1C, an intermediate floor 1E and partition walls 1D on both sides, which delimit the door compartments 10 with the side walls 1A.

The folding door 11 has a first door element 111, which is connected on one side by stop hinges 13 to a mounting profile 12, and on the other side by folding door hinges 3 with an additional element 112 or a second door element 112, the dimensions of which preferably correspond to the dimensions of the first Door element 111 correspond. The folding door 11 is slightly unfolded and can either be completely folded and retracted into the door compartment 10 with the door elements 111, 112 aligned parallel to one another, or completely unfolded and moved into a closed position in which the two door elements 111, 112 are at least approximately aligned in one plane. So that the folding door 11 remains held in the closed position and can be easily released from the closed position, one of the two door elements 111, 112 is provided with a holding device 2 according to the invention, which lies opposite a contact element 20 in the closed position. In the embodiments of the piece of furniture 1 described below, the first door element 111 of the folding door 11 is provided with the holding device 2. An arrow symbolizes that the holding device 2 of the folding door 11 is guided against the contact element 20 when the door element 111 rotates and is held magnetically by the latter in the closed position of the folding door 11. The additional element 112 is not connected to the holding device 2 or a part thereof, which is why related assembly work and work for the mutual alignment of device parts are eliminated. However, the alignment of the holding device 2 relative to the contact element 20 can be carried out without any problems. The contact element 20, for example a magnetic or ferromagnetic plate, such as an iron plate or a steel plate, can be easily connected to the piece of furniture 1, for example screwed or glued. The contact element 20 can also be part of a structural element of the piece of furniture 1.

Fig. 1 shows that the holding device 2 is preferably arranged on the top of the door element 111. The holding device 2, however, can also be arranged elsewhere on the door element 111. For example, the contact element 20 can also be mounted on the intermediate floor 1E and the holding device 2 on the door element 111 at the appropriate height.

The use of the holding device 2 in conjunction with the folding door 11 is particularly advantageous since the holding device 2 is enclosed between the door elements 111, 112 and does not appear disruptive. The holding device 2 can also be used advantageously on the one-piece door 11, it being advantageous that the holding device can be realized with only small dimensions.

The holding device 2 according to the invention can be used with any functional units, possibly pieces of furniture, which have one-piece or multi-part doors which, in preferred embodiments, can be parked in a door compartment.

In the in Fig. 1 In the embodiment shown, the doors 11 are each connected by stop hinges 13 to a mounting profile 12, which is held by a displacement device 9 and can be moved within the associated door compartment 10. The doors 11 are aligned parallel to the side wall 1A in front of the associated door compartment 10 and can subsequently be moved into the door compartment 10. The mounting profile 12 can also be provided with drive devices for displacement within the door compartment 10. Preferably, the mounting profile 12 is connected at the top to a support unit 5A, which can be moved into the door compartment 10 along an associated guide rail 15A. The mounting profile 12 can also be connected to a drive on the underside, which is guided in a guide rail.

In this preferred embodiment, the second separating element 112 of the folding door 11, the leading edge of which is connected to a guide drive 5B, is also guided by means of a guide rail 15B, which runs along the front of the piece of furniture 1 and along a curve into the door compartment 10. The folding door 11 is therefore held on the front side by means of the guide drive 5B, which can be moved along the front side of the piece of furniture 1 in the unfolded state of the folding door 11 and into the door compartment 10 in the folded state of the folding door 11. The guide drive 5B always runs ahead of the second separating element 112 in the displacement direction.

Fig. 2 shows the back of the folding door 11 of the piece of furniture 1 from Fig. 1 with the first door element 111, which is connected on the trailing edge by stop hinges 13 to the mounting profile 12 and on the leading edge by folding door hinges 3 with the additional element or the second door element 112, on the front of which the guide drive 5B is mounted. The guide drive 5B includes support rollers 51, which can roll on a running plate 151 of the guide rail 15B, and guide rollers 52, which are guided in a guide channel 152 of the guide rail 15B. It is shown that the guide rail 15B runs along the front of the piece of furniture 1 and around a curve into the door compartment 10 of the piece of furniture 1. So that the guide drive 5B can follow this curve, it is connected to the second door element 112 by parts 53, 54 of a drive body which are hingedly connected to one another.

The mounting profile 12 is connected at the upper end to a support unit 5A, which can be moved into the door compartment 10 along a guide rail 15A. In Fig. 2 the support gear 5A is guided up to a stop device 7 on the front of the door compartment 10. In this Position that is also in Fig. 1 is shown, the folding door 11 is fully extended from the door compartment 10 and can be unfolded to the furniture opening 100 (see Fig. 1 ) to complete. In Fig. 2 the folding door 11 has almost reached the closed position and can be brought into the closed position by manual pressure on the folding door 11, preferably on the leading edge 111, in which the holding device 2 mounted on the back of the separating element 111 with the contact element 20, which is connected to the Front side of the guide rail 15B is connected, can interact magnetically.

The holding device 2 comprises a mounting part 21, which is preferably connected in an articulated manner to the first door element 111 by means of screws and to a holding lever 22 by means of a lever shaft 23. On the front end piece or front piece 2219, the holding lever 22 is provided with a holding magnet 282 and two rollers 229.

The rollers 229 can roll on the contact element 20 and/or the guide rail 15B during the closing process without the lever body 221 (see Fig. 6b ) of the holding lever 22 touches the contact element 20 or the running rail 15B. The holding lever 22 is rotated and the holding magnet 282 is aligned almost frontally against the contact element 20 so that it can magnetically couple to the magnetic or ferromagnetic contact element 20.

It is described below that the holding device 2 includes a force transmitter 241 (see for example Fig. 3 and Fig. 9 ), which can be cyclically displaced in a locking unit 24 by the action of pressure between a locking position p1, in which the holding device 2 reaches a holding position, and a release position p2, in which the holding device 2 reaches a release position. The holding device 2 can therefore be coupled and locked in the closed position with the contact element 20 by a first manual pressure on the door element 111 and thus on the holding device 2 and unlocked and from the contact element by a second manual pressure on the door element 111 and thus on the holding device 2 20 can be solved again.

After being released from the closed position, the two door elements 111, 112 are preferably folded automatically. This folding process is preferably supported by folding door hinges 3, which connect the two door elements 111, 112 to one another and which are equipped with a hinge spring 34. The hinge spring 34 acts on the two hinge levers 31, 32, which are connected to one another by a hinge axis 33 and the on the other hand, each of which is connected to a hinge cup 39 and tries to rotate them against each other and to fold the door elements 111, 112. The preferably used folding door hinge 3 is described below with reference to Fig. 10a and Fig. 10b explained in more detail.

Fig. 2 also shows a spacer plate 200, which does not fulfill any function in the closed position of the folding door 11. In the folded position of the folding door 11 with the door elements 111, 112 aligned in parallel, the front piece 2219 with the rollers 229 rests against the spacer plate 200 and is pressed against the mounting part 21 and preferably aligned parallel to it, so that this is as possible when pushed into the door compartment 10 takes up little space. Space is thus kept free for the displacement device 9, by means of which the mounting profile 12 is held displaceably in a vertical orientation (see Fig. 5 ).

Fig. 3 shows an exploded view of the holding device 2 according to the invention Fig. 2 , which includes a mounting part 21 with a mounting body 211, a holding lever 22 with a lever body 221, a lever shaft 23 for connecting the mounting body 211 and the lever body 221, an arrangement with a holding magnet 282, a locking unit 24 and a coupling unit 25, by means of which the Mounting body 211, the lever body 221 and the locking unit 24 can be coupled to one another.

The mounting body 211 and the lever body 221 each have a coupling part 2111, 2211 on the back with a bearing hole that can be penetrated by the bearing shaft 23. In the drawing, the bearing shaft 23 is inserted into the mounting body 211. The holding lever 22 can therefore be rotated about the mounted bearing shaft 23 relative to the mounting part 21.

The coupling unit 25 includes a coupling lever 253, which holds a coupling shaft 251 at one end and a central shaft 252 at the other end. The coupling shaft 251 and the central shaft 252 are aligned parallel to each other. The coupling unit 25 is shown twice. The coupling unit 25 or the coupling shaft 251 is shown in connection with the mounting body 211 and in connection with the locking unit 24. However, only one coupling unit 25 is used.

The mounting body 211 has a connection plate 2119 at both ends with a through hole through which mounting screws can be passed in order to connect the mounting body 211 to the door element 111. If the mounting body 211 is to be connected to differently designed door elements, for example glass panels, other Connecting means provided. For example, the mounting body 211 can also be connected to the door element 111 using an adhesive or in a form-fitting manner.

The mounting body 211 is partially U-shaped and comprises two side parts 2116 connected to one another by a body center part 2117, which delimit a receiving chamber 2110 in which the locking unit 24 can be held in a non-positive or positive manner. Each of the side parts 2116 has a guide track 2112. The guide tracks 2112, which are aligned parallel to one another, are penetrated by the coupling shaft 251 of the coupling unit 25.

The locking unit 24 comprises a force transmitter 241, which is slidably mounted within a housing 242 of the locking unit 24 and supported by a recoil spring 248, which counteracts the effect of pressure and pushes the force transmitter 241 back. The force transmitter 241 is also connected to a switching mechanism 249, which cyclically switches between a locking position and a release position when the force transmitter 241 is subjected to sequential pressure effects. The switching mechanism 249 will be exemplified below with reference to Fig. 9 explained in more detail. Devices with a switching mechanism are available on the market. Any devices with a switching mechanism can therefore be integrated into the holding device 2. On the back of the housing 242, an adjusting part 245 is provided, by means of which the switching mechanism 249 can be positioned in order to precisely adjust the locking position. To operate the adjusting part 245, an adjusting channel 2114 is provided in the mounting body 211, through which a tool, for example a screwdriver, can be inserted (see Fig. 8 ).

The force transmitter 241 is, for example, a cylindrical piston which is slidably mounted in the hollow cylindrical housing 242. A housing collar 243 is provided on the front of the housing 242 and can be inserted into a retaining groove 2113 which is provided in the receiving chamber 2110 of the mounting body 211. The locking unit 24 is held axially immovable within the receiving chamber 2110 by the holding groove 2113.

On the front side, the force transmitter 241 is provided with a fork-shaped coupling part 246, which has coupling tracks 2460, which are penetrated by the coupling shaft 251 of the coupling unit 25. The coupling shaft 241 of the coupling unit 24 thus penetrates the Coupling tracks 2460 of the coupling part 246 and the guide tracks 2112 of the mounting body 211. The central shaft 252 of the coupling unit 25, on the other hand, is held rotatably but immovably in bearing openings or in a central shaft bearing 2212 of the lever body 221.

In Fig. 3 the coupling shaft 251 is held at the front end of the guide tracks 2112. The force transmitter 241 is therefore shifted forward to the maximum. If the holding lever 22 is now rotated about the bearing shaft 23 against the mounting part 21, the central shaft 252 is moved downwards with the coupling lever 253, which is why the coupling shaft 251 is moved along the guide tracks 2112 and the force transmitter 241 is inserted into the housing 242 of the locking unit 24.

The guide tracks 2112 are curved, which is why the coupling shaft 251 is not displaced parallel to the longitudinal axis of the mounting body 211, but also moves perpendicular to it. In order to allow this movement of the coupling shaft 251 perpendicular to the longitudinal axis of the mounting body 211, the coupling tracks 2460 are provided in the coupling part 246, which is connected to the force transmitter 241.

The inclination of the guide tracks 2112 starting from the position in which the coupling shaft 251 in Fig. 3 is held, allows the force required to operate the locking unit to be adjusted. The steeper the curve, the easier it is to move the coupling shaft 251 downwards, while at the same time the displacement of the force transmitter 241 in the axial direction is correspondingly reduced. Due to the curvature of the guide tracks 2112 on the other side, the guide tracks 2112 can be extended without them extending by the corresponding length in the axial direction and without a corresponding extension of the mounting body 211 being required.

The lever body 221 has a collar opening 2213 on the top, into which the housing collar 243 of the housing 242 can enter. Furthermore, a tool channel 2214 is provided through which a tool, for example a screwdriver, can be guided to the connection plate 2119 of the mounting body 211.

Furthermore, the lever body 221 has a magnetic chamber 2218, which serves to accommodate the holding magnet 282, a magnetic cup 283 and a damping disk 284. It is shown that the holding magnet 282 is inserted into the magnetic cup 283, supported with the magnetic cup 283 on the damping disk 284 and by a connecting screw 281 is pierced, which is guided through a support spring 285 on the other side of the lever body 221 and screwed into a threaded pin 2861 of a threaded part 286. The threaded pin 2861 has a retaining element 2863, which holds the support spring 285. The threaded pin 2861 is connected to a holding plate 2862, which, together with the support spring 285, is inserted into a holding chamber 2215 in the lever body 221 (see 6a and 6b ). The holding plate 2862 is thus supported by the support spring 285 and can tilt to the side with the holding magnet 282. The threaded pin 2861 preferably projects with sufficient play into a through opening 22180, which connects the magnetic chamber 2218 with the holding chamber 2215. The holding magnet 282 can therefore automatically align itself with respect to the contact plate 20 and magnetically optimally couple to it, as described below with reference to Fig. 7b will be described in more detail. The damping disk 284, which is made of silicone, for example, prevents noise during processes for coupling or decoupling the holding magnet 282 to or from the contact element 20.

The fork-shaped front piece 2219 of the holding lever 22 is pierced by a bearing shaft 2291, which holds two rollers 229. The rollers 229 prevent the lever body 221 from hitting the contact element 20, a cabinet part or the adjacent separating element 112.

Fig. 4 shows part of the folding door 11 from Fig. 2 shortly before reaching the closed position or shortly after releasing from the closed position. It can be seen that the door elements 111, 112 of the folding door 11 are not yet aligned in one plane and the magnet 282 is not yet in contact with the contact element 20. The holding lever 22 is inclined relative to the mounting part 21 and faces the contact element 20 and will first contact this with the rollers 229 provided on the front piece 2219. The rollers 229, which are preferably made of plastic, will hardly cause any noise.

The holding magnet 282 is sunk into the magnet chamber 2218 and is partially enclosed by the magnet cup 283 and projects beyond the front, for example by 0.2 mm - 2 mm, so that the holding magnet 282 cannot strike the contact element 20.

The locking unit 24 with the force transmitter 241 is shown schematically. The force transmitter 241 supported by the adjusting spring 248 is axially displaceable and actuates the switching mechanism 249 (see Fig. 9 ) through Displacement between a first displacement position a1, a second displacement position a2 and a third displacement position a3. The resulting function of the switching mechanism 249 will be discussed below with reference to Fig. 9 explained.

The hinge spring 34 is tensioned in this position of the folding door 11 and the folding door hinge 3 and tries to fold the door elements 111, 112 against each other again, against the force of the user. The holding device 2 must therefore be magnetically coupled to the contact element 20 in the closed position and locked by means of the locking unit 24 so that the folding door 11 is held in the closed position. The hinge spring 34 is therefore loaded by manual force and subsequently serves to automatically fold the folding door 11 as soon as it is released from the closed position.

Fig. 5 shows the folding door 11 of Fig. 4 with the first door element 111, which is separated from the folding door hinge 3 by a cut, and the second door element 112 in a parallel orientation, in which the folding door 11 can be inserted into the associated door compartment 10. The front piece 2219 of the holding lever 22 rests with the rollers 229 on the spacer plate 200 and holds the holding lever 22 at least approximately parallel to the mounting part 21. The holding device 2 therefore only takes up little space within the door compartment 10.

The hinge levers 31, 32 of the folding door hinge 3, which are connected to one another by the hinge axis 33, have been rotated against one another, which is why the hinge spring 34 is relaxed or largely relaxed.

Fig. 6a and Fig. 6b show the lever body 221 of the holding lever 22 and Fig. 6c and Fig. 6d show the mounting body 211 of the mounting part 21, which is related to Fig. 3 have already been partially described. The lever body 221 and the mounting body 211 will be described in addition below.

Fig. 6a shows the underside of the lever body 211 facing the mounting part 21, which is partially U-shaped and comprises two side walls 2216 connected to one another by a body center piece 2217, which delimit a lever chamber 2210 into which the mounting part 21 can be completely or partially recessed. Also shown are the two bearing blocks of the central shaft bearing 2212, the tool channel 2214 and the holding chamber 2215, from which the support spring 285 and the threaded part 286 are shown Fig. 3 preferably be completely absorbed.

Fig. 6b shows the lever body 221 of Fig. 3 with a view of the magnet chamber 2218, into which the holding magnet 282 is inserted Fig. 3 is used. The holding magnet 282 and the magnetic cup 283 are shown in a sectional view, which is why it can be seen that the threaded pin 2861 of the threaded part 286 of Fig. 3 , into which the connecting screw 281 is screwed, is guided with play through the through opening 22180 and connects flush to the magnetic chamber 2218. The threaded part 286 is supported by the support spring 285 (see Fig. 8 ), which is why the holding magnet 282 can be raised and pivoted by force from the magnet chamber 2218. As soon as the holding magnet 282 is released from the contact element 20 again, it is pulled back by the support spring 285 against a damping element or a damping disk 284, which dampens impact noises.

Fig. 6c shows the mounting body 211 of Fig. 3 , which is at least partially U-shaped and has two side parts 2116 connected to one another by a body center part 2117, which delimit a receiving chamber 2110 in which the locking unit 24 is held in a form-fitting manner by means of the retaining groove 2113. A guide track 2112 is provided in each of the side parts 2116, which lie opposite one another.

Fig. 6d shows the mounting body 211 of Fig. 3 looking at the side with one of the door elements 111, 112 of Fig. 1 is connected or screwed.

Fig. 7a shows the front of the holding device 2 from Fig. 3 with the holding magnet 282 released from the contact element 20 before reaching the closed position or after leaving the closed position. The holding lever 22 is turned outwards to the maximum and contacts the contact element or the contact plate 20 with the rollers 229, which are held on the front piece 2219 of the lever body 221. If the mounting part 21 is guided further against the contact element 20, the holding magnet 282 can be magnetic to the contact element 20, but without touching it and thus without a noticeable impact noise. The front piece of the mounting body 211 is cut open to show that the coupling shaft 251 penetrates the coupling track 2460 of the coupling part 246 and the guide track 2112 of the mounting body 211 on both sides. In this position of the holding device 2, the coupling shaft 251 is at a first end 21121 (see Fig. 7b ) of the guideway 2112. The force transmitter 241 is located in Fig. 7a at the third displacement position a3 of Fig. 4 .

Fig. 7b shows the front of the holding device 2 from Fig. 7a in the closed position of the door 11 or the folding door 11 Fig. 1 . In this position, the locking unit 24 is locked and the coupling shaft 251 is held firmly close to a second end 21122 of the guide track 2112. The holding lever 22 is still slightly rotated relative to the mounting part 21, which is why the holding magnet 282, which is magnetically coupled to the contact element 20, is activated by compression of the support spring 285 (see Fig. 3 ) was swung out. It should be noted that the holding device 2 in Fig. 7b Position shown starting from the position of Fig. 7a not directly, but only through the position of Fig. 7c reached. Likewise, the position of Fig. 7a based on the position of Fig. 7b not directly, but only through the position of Fig. 7c reached. The force transmitter 241 is located in Fig. 7b at the first displacement position a1 of Fig. 4 .

Fig. 7c shows the front of the holding device 2 from Fig. 7b during the process of overpressing, through which the holding device 2 is brought into the holding position or released from the holding position. In this position, the coupling shaft 251 is guided to the end 21122 of the guide track 2112 and the force transmitter 241 is moved to the second displacement position a2 Fig. 4 delay. From this position, the holding device 2 can return to the holding position Fig. 7b or in the release position of Fig. 7a to be brought. When moving into the release position, the holding lever 22 is not raised frontally, but laterally, which is why the holding magnet 282 can detach from the contact element 20 with reduced effort.

Fig. 8 shows the holding device 2 in the position of Fig. 7a with a longitudinal section through the mounting body 211 and the lever body 221. The mounting body 211 has an adjusting channel 2114 through which a screwdriver can be inserted axially in order to rotate the adjusting part 245 of the locking unit 24. The lever body 221 has a tool channel 2214 through which a screwdriver is inserted, by means of which a mounting screw 21191, which is guided through a stop part 2119 of the mounting body 211, can be screwed into the associated door element.

Furthermore, the holding magnet 282 and the threaded part 286 are shown, which are connected to one another by a connecting screw 281. The threaded part 286, which is arranged within the holding chamber 2215, is pushed upwards by a spiral-shaped support spring 285, which is why the holding magnet 282 and the magnetic cup 283 are pulled against the damping element 284. As soon as the holding magnet 282 comes into magnetic contact with the contact element 20 occurs, the threaded part 286 is pulled further into the holding chamber 2215 and the holding magnet 282 is pulled slightly out of the magnet chamber 2218 and rotated against the contact element 20. The holding magnet 282 can therefore fully couple to the contact element 20 within the holding position of the holding device 2 without the holding lever 22 being aligned parallel to the contact element 20 (see Fig. 7b ).

Fig. 9 shows a basic representation of the locking unit 24 from Fig. 3 with the force transmitter 241, which is held in a cylindrical housing 242, supported on an adjusting spring 248 and connected to a circulating lever 2411 via a lever joint 2410. The circulation lever 2411 projects with a front piece into a circulation mechanism 249, which includes a circulation channel 2490 which encloses a center piece 2491. With axial displacements of the force transmitter 241 between the first displacement position a1, the second displacement position a2 and the third displacement position a3 (see Fig. 4 ), the front piece of the circulating lever 2411 is guided cyclically around the center piece 2491 within the circulating channel 2490 in a clockwise direction. From a release position p2, in which the holding device 2 takes the position of Fig. 7a occupies, the circulating lever 2411 is transferred to a first transition position p31 by overpressing the holding device 2, in which the holding device 2 takes the position of Fig. 7c takes. If the pressure from the holding device 2 is now removed, the circulating lever 2411 is transferred to a locking position p1, in which the circulating lever 2411 is held by the center piece 2491 and the holding device 2 is in the position of Fig. 7b takes. As soon as renewed pressure is exerted on the holding device, the circulating lever 2411 is moved from the locking position p1 into a second transition position p32, in which the holding device 2 reaches the position of Fig. 7c occupies, and from there brought back to the release position p2. The force transmitter 241 can therefore be moved into the locking position p1 by a first over-pressing and can be moved back into the release position p2 by a second pressing.

Fig. 10a shows the folding door hinge 3 of Fig. 2 , which comprises a first hinge lever 31 and a second hinge lever 32, which are connected to one another by a hinge axis 33, and a hinge spring 34, which is tensioned in this position of the hinge 3 and which is connected to two spring assemblies 341, 342 which are connected to one another by a spring center piece 343 the hinge axis 33 encloses and rests with spring end pieces 3411, 3421 on the first hinge lever 31 and with the spring center piece 343 on the second hinge lever 32. The first hinge lever 31 includes a first lever end piece 311 with four bearing arms 3111, 3112, 3113, 3114 (see Fig. 10b ), which are pierced by the hinge axis 33, and a second lever end piece 312, which is connected to an associated hinge cup 39. The second hinge lever 32 comprises a first lever end piece 321, which is held between two bearing arms 3112, 3113 of the first hinge lever 31 and pierced by the bearing shaft 33, and a second lever end piece 322, which is connected to an associated hinge pot 39. Holding elements 314 are provided on the first bearing arm 3111 and on the fourth bearing arm 3114, by means of which the spring end pieces 3411, 3421 of the spring assemblies 341, 342 are held. The second bearing arm 32, on the other hand, has a holding part or a holding lug 324, by means of which the spring center piece 343 is held. The spring end pieces 3411, 3421 of the spring assemblies 341, 342 attempt to rotate the first hinge lever 31 clockwise and the spring center piece 343 attempts to rotate the second hinge lever 32 counterclockwise.

A bearing roller 35, which is penetrated by the hinge axis 33, is also held within each of the spring assemblies 341, 342. Movements of the spring assemblies 341, 342 are therefore absorbed by the bearing rollers 35, which is why the spring assemblies 341, 342 are always held in axial alignment and undesirable deformations and friction of the spring assemblies 341, 342, for example on the hinge axis 33, are avoided.

Fig. 10b shows the hinge 3 in an exploded view. It is shown that the inner bearing arms 3112 and 3113 have smaller bearing openings 31120, 31130, which can only accommodate the hinge axis 33, but not the bearing rollers 35. The outer bearing arms 3111 and 3114, however, have larger bearing openings 311110, 311140 into which the bearing rollers 35 can be inserted. The folding door hinge 3 can therefore be easily assembled.

The hinge spring 34 can exert high forces on the hinge arms 31, 32 with the two spring assemblies 341, 342 and follow the movements of the hinge arms 31, 32 without friction. It is particularly advantageous that a strong hinge spring 34 can be integrated into the folding door hinge 3 without taking up significant space.

List of reference symbols:

1

Functional unit, piece of furniture, especially cabinet

10

first or second door compartment 10 or parking space

100

Interior of functional unit 1

1A

side walls

1B

Topsoil

1C

subfloor

1D

partition wall

11

Folding door

12

Mounting profile

13

Stop hinges

15A

Guide rail for the 5A undercarriage

15B

Guide rail the guide drive 5B

151

running plate

152

Guide channel

2

Holding device

20

magnetic or ferromagnetic contact element

200

Spacer plate

21

Assembly part

211

Mounting body

2110

Reception chamber

2111

Coupling part

2112

guideway

21121

first end of guideway 2112

21122

second end of guideway 2112

2113

holding groove

2114

Adjustment channel

2115

Chamber expansion

2116

Side parts

2117

Middle part of the body

2119

Connection plate

21191

Mounting screw

22

Holding lever

221

Lever body

2210

Lever chamber

2211

Coupling part

2212

Central shaft bearing

2213

Collar opening

2214

Tool channel

2215

holding chamber

2216

side walls

2217

Body centerpiece

2218

Magnetic chamber

22180

Passage opening

2219

Front piece

22190

Warehouse opening

229

Castors

2291

bearing shaft

23

Lever shaft

24

Locking unit

241

force transmitter

2410

Lever joint

2411

Circulating lever

242

Housing

243

Case collar

245

Adjustment part

2450

Intervention element

246

Coupling part

2460

Coupling path

2461

Coupling plates

248

Recoil spring

249

switching mechanism

2490

circulation channel

2491

Centerpiece

25

Coupling unit

251

Coupling shaft

252

Central shaft

253

Coupling lever

281

connecting screw

282

Holding magnet

283

Magnetic cup

284

Damping disc

285

Support spring

286

Threaded part

2863

Retaining element

2861

Threaded stud

2862

Retaining plate

2863

Retaining element

3

Folding door hinge

31

first hinge lever

311

first lever end piece of the first hinge lever 31

3111

first bearing arm

3110

first warehouse opening

3112

second bearing arm

31120

second warehouse opening

3113

third bearing arm

31310

third warehouse opening

3114

fourth bearing arm

31140

fourth warehouse opening

312

second lever end piece of the first hinge lever 31

314

Holding elements

32

second hinge lever

321

first lever end piece of the second hinge lever 32

322

second lever end piece of the second hinge lever 32

324

holding part

33

hinge axis

34

Hinge spring

341

first spring package

3411

first spring end piece

342

second spring package

3421

second spring end piece

343

Spring center piece

35

Bearing rollers

39

Mounting part, hinge cup

5A

carrying gear

5B

Guide drive

51

Support rollers

52

Leadership roles

53

first drive body part

54

second drive body part

9

Displacement device

a1

first displacement position

a2

second displacement position

a3

third displacement position

p1

Locking position

p2

Release position

p31

first transition position

p32

second transition position

x

Axis of rotation

Claims (15)

Holding device (2) for holding a rotatably held door element (111), which forms a single door (11') or, together with an additional element (112), a folding door (11), in a closed position and for releasing the door element (111) from the closed position , wherein the holding device (2), which can be connected to the door element (111), can be moved into a holding position by a first pressure action and into a release position by a second pressure action, characterized in that a mounting part (21) with a mounting body (211) is provided, which on the one hand can be connected to the door element (111) and which on the other hand is connected by a lever shaft (23) and away from the lever shaft (23) by a coupling unit (25) to a lever body (221) of a holding lever (22), which can be rotated around the lever shaft (23) relative to the mounting body (211) and which holds a holding magnet (282) on a front piece (2219) facing away from the lever shaft (23), which is held in a stationary magnetic position in the closed position of the door element (111). or ferromagnetic contact element (20) can cooperate to hold the door element (111) in the closed position, and that the coupling unit (25) comprises a coupling lever (253) which has a central shaft (251) at one end and a central shaft (251) at the other end a coupling shaft (251) which are aligned parallel to one another, the central shaft (251) being rotatable in the lever body (221) or in the mounting body (211) and the coupling shaft (251) being displaceable in at least one guide track (2112) of the mounting body (211 ) or the lever body (221) and is held in a coupling path (2460) of a coupling part (246), which is held by a force transmitter (241), which is cyclically moved in a locking unit (24) by the action of pressure between a locking position (p1), in which the holding device (2) reaches the holding position, and a release position (p2), in which the holding device (2) reaches the release position, can be moved. Holding device (2) according to claim 1, characterized in that the mounting body (211) is at least partially U-shaped and has two side parts (2116) connected to one another by a body center part (2117) which delimit a receiving chamber (2110), in which the locking unit (24) is held in a non-positive or positive manner and that a guide track (2112) is provided in each of the side parts (2116), which lie opposite one another. Holding device (2) according to claim 1 or 2, characterized in that the length of each guide track (2112), which has a straight or curved course and which passes through the coupling shaft (251) when the force transmitter (241) is displaced along its longitudinal axis is selected such that the force transmitter (241) can be displaced beyond the locking position (p1) into a transition position (p3) at least during the second pressure action. Holding device (2) according to claim 1, 2 or 3, characterized in that the force transmitter (241) within the locking unit (24) is supported by a spring element (248) which responds to the pressure effect of the coupling shaft (251) on the force transmitter (241). counteracts and the force transmitter (241), after it has been released from the locking position (p1) and transferred to the transition position (p3), can be moved back to the release position (p2), in which the retaining lever (22) relative to the mounting part (21) swung out or can be swung out. Holding device (2) according to one of claims 1 - 4, characterized in that the locking unit (24) has an adjusting part (245) with an engagement element (2450) which can be actuated by means of a tool provided in the mounting body (211). Adjusting channel (2114) can be inserted into the receiving chamber (2110). Holding device (2) according to one of claims 1 - 5, characterized in that the coupling part (246) is U-shaped and has two coupling plates (2461), each provided with a coupling track (2460), between which the coupling shaft (251) provided end piece of the coupling lever (253) is held. Holding device (2) according to claim 6, characterized in that the lever body (221) is at least partially U-shaped and has two side walls (2216) connected to one another by a body center piece (2217) which delimit a lever chamber (2210), into which the mounting part (21) can be completely or partially recessed. Holding device (2) according to one of claims 1 - 7, characterized in that the lever body (221) on the lever shaft (23) has a front piece (2219) which holds at least one roller (229). Holding device (2) according to one of claims 1 - 8, characterized in that the lever body (221) has a magnet chamber (2218) into which the holding magnet (282) is sunk. Holding device (2) according to one of claims 1 - 9, characterized in that the lever body (221) has a magnet chamber (2218) into which the holding magnet (282) is sunk and which is adjoined by a through opening (22180) through which a Connecting screw (281) is guided through, which connects the holding magnet (282) to a threaded part (286) which is supported on a support spring (285) and which pivotally holds the holding magnet (282). Holding device (2) according to one of claims 1 - 10, characterized in that the holding magnet (282) is at least partially enclosed by a magnetic cup (283) made of plastic and is projected over it to such an extent that direct contact between the holding magnet (282) and the contact element (20) is avoided, or that the holding magnet (282) is at least partially enclosed by a magnetic cup (283) made of plastic, which is supported on a damping element (284). Functional unit (1), in particular a piece of furniture, with at least one door element (111), which forms a single door (11') or, together with an additional element, a folding door (11) and with a holding device (2) according to one of claims 1 - 11 , is connected in such a way that the holding magnet (282) can interact in the closed position of the door element (111) with the stationary magnetic or ferromagnetic contact element (20), which is firmly connected to a part of the functional unit (1) or which is a structural element the functional unit (1). Functional unit (1) according to claim 12, characterized in that the holding device (2) on the underside or the top of the door element (111) or on the underside or the top of the door element (111) or the additional element (112) of the folding door (11 ) mounted and parallel to the bottom edge or top edge of this door element (111; 112) is aligned and faces the functional unit (1) with the holding lever (22). Functional unit (1) according to claim 12 or 13, characterized in that the folding door (11) is provided with at least one folding door hinge (3) which is connected to the door element (111) with a first hinge lever (31) and with a second hinge lever (32 ) is connected to the additional element (112), which comprises a hinge axis (33) which connects the first and second hinge levers (31, 32) to one another and to a hinge spring (34; 341, 342) which is in the closed position of the folding door (11) is tensioned and has two spring assemblies (341, 342) connected to one another by a spring center piece (343), which rests on the second hinge lever (32), which enclose the hinge axis (33) and each with a spring end piece (3411, 3421 ) rest on the first hinge lever (31). Functional unit (1) according to claim 12, 13 or 14, characterized in that the first door element (111) is connected to a mounting profile (12) on an edge remote from the folding door hinges (3) by stop hinges (13), which is located within a door compartment (10) of the piece of furniture (1) is displaceable and that the additional element (112) is connected on an edge remote from the folding door hinges (3) to a guide drive (5B) which is guided in a guide rail (5B) which runs along the front of the piece of furniture (1) and which preferably holds the magnetic or ferromagnetic contact element (20).

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