Holding device for a door, and functional unit comprising a holding device

Abstract

The invention relates to a holding device (2) which is designed to hold a rotatably mounted door element (111) in a closed position and to release the door element (111) out of the closed position, comprising a locking unit (24) with a force transmitter (241), which has a connection part (246), and comprising a locking mechanism (249) that can be cyclically moved by means of the force transmitter (241) under the effect of pressure between a locking position (p1), in which the locking mechanism (249) reaches a holding position and the holding device (2) is connected or can be connected to a closure element (20), and a release position (p2), in which the locking mechanism (249) reaches a release position and the holding device (2) is released from the closure element (20). According to the invention, the closure element (20) consists at least partly of a magnetic or ferromagnetic material; an installation part (21) comprising an installation body (211) and a holding lever (22) comprising a lever body (221) are provided; the installation body (211) can be connected to the door element (111) and is connected to the lever body (221) by means of a lever joint (23); the lever body (221) has a front piece (2219) which holds at least one holding magnet (282) that is connected or can be connected to the closure element (20) in a force-fitting manner in the holding position; and a coupling unit (25) is provided comprising a coupling body (253) which is connected to the installation body (211) in an articulated manner and to the lever body (221) in an articulated manner at a distance to the lever joint (23) and which is connected to the connection part (246) of the locking unit (24) in an articulated manner.

Description

[0001] Holding device for a door and functional unit with a holding device

[0002] The invention relates to a pressure-actuated holding device for a door, in particular for a folding door or folding sliding door, and to a functional unit, in particular a piece of furniture, which is provided with a door, in particular with a folding door or folding sliding door, and with at least one holding device.

[0003] To close off functional units, for example openings in rooms or pieces of furniture, doors, usually folding doors or folding sliding doors, are used which, after the opening has been released, are preferably moved into a door compartment or a parking space in order to avoid being a disruptive feature.

[0004] US9284761B2 discloses a piece of furniture with a sliding device by means of which a mounting profile connected to a folding sliding door can be moved within a door compartment. The folding sliding door comprises two door elements, of which the first door element is connected at the rear by stop hinges to a mounting profile and at the front by folding door hinges to the rear of a second door element. The second door element is connected at the front to a carriage that can be moved along a running track having two rail sections aligned perpendicular to one another and connected by a curved 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 on the top and bottom with guide carriages that are slidably mounted in guide rails.

[0005] 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 flush with each other. To open the piece of furniture, the folding door is folded closed again, with the door elements preferably aligned parallel to each other when retracted into the door compartment in the open position.

[0006] In the closed position, the folding door must be kept in a planar position to prevent the folding process from being triggered automatically. After opening the folding door from the closed position, it would be desirable for the folding process to be carried out automatically.

[0007] DE202018100262U1 discloses a pressure-actuated

[0008] Holding device that supports both holding 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 that is connected to the first door element of the folding door, and a second fitting part that 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 that is movably connected to the first fitting part and the coupling device. Adjustment of the first fitting part relative to the coupling device is achieved via an energy accumulator that is manually loaded by the user and acts against the ejection element. A release device is connected to the second door leaf via a connecting cable.The locking device is unlocked by applying pressure to the planarly aligned door elements, which pushes them further out of the planar alignment in the closing direction.

[0009] This device has a complex structure and requires numerous components, a first group of which is to be connected to the first door element and a second group to the second door element. Furthermore, components are provided which connect the two fitting parts and thus the two door elements to one another. The first components of which are mechanically guided with considerable effort, while the second components are held loosely, which is generally undesirable. 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 prevent accidental unlocking. Due to the use of two fitting parts, it is also important to ensure that these are connected to the first and second door elements at the correct distance from one another and in the correct mutual alignment and height.It should also be noted that this device takes up a lot of space, which is disadvantageous given the limited space within the piece of furniture and especially within a door compartment.

[0010] Furthermore, the holding device is only suitable for use with folding doors, so that a different holding device is required for doors with only one door element.

[0011] US2022372808A1 discloses an ejection device with two levers that can be pivoted relative to each other and locked against each other by means of a locking device.

[0012] US20180119470A1 discloses a further ejection device having at least one ejection element for opening a folding door. US20170247924A1 discloses an ejection device for opening a

[0013] folding door .

[0014] The present invention is therefore based on the object of creating an improved holding device by means of which the door of a functional unit, a single door or a folding door, optionally a folding sliding door, can be held in a closed position.

[0015] Furthermore, an improved functional unit, in particular a piece of furniture, with at least one door element is to be created, which is equipped with at least one such holding device.

[0016] The holding device should make it possible to releasably hold and release a door of a functional unit, a single door or a folding door, if necessary a folding sliding door, in a closed position.

[0017] The holding device should be of simple construction and have as few parts as possible so that the holding device can be manufactured and assembled with little effort and low cost.

[0018] The holding device should also be designed with compact dimensions so that it takes up minimal space in the closed position with a closed single door or with the door elements of a folding door aligned in a planar manner, and also in the open position with the door elements of a folding door aligned parallel side by side. The usable space available to the user should therefore be optimized by ensuring that the holding device does not protrude far into the usable space and by creating a door compartment for the held door with the smallest possible dimensions.

[0019] The holding device should be easily mounted in the functional unit. Mutual alignment of device parts should be avoided or at least made significantly easier.

[0020] The holding device is intended to hold the door, if applicable the folding door, reliably in the closed position without additional measures and to support the opening process, if applicable the folding process, after the door has been released from the closed position.

[0021] This object is achieved with a holding device according to claim 1 and a functional unit, optionally 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.

[0022] The holding device, which is provided for holding a rotatably mounted door element, which forms a single door or together with a second door element a folding door, in a closed position and for releasing the door element from the closed position, comprises a locking unit with a force transmitter, which has a connecting part, and a locking mechanism, which locking mechanism can be displaced by the force transmitter by the action of pressure cyclically between a locking position, in which the locking mechanism reaches a holding position and the holding device is connectable or connected to a closure element, and a release position, in which the locking mechanism reaches a release position and the holding device is detachable or detached from the closure element.

[0023] According to the invention, it is provided that the closure element consists at least partially of magnetic or ferromagnetic material, that a mounting part with a mounting body and a holding lever with a lever body are provided, that the mounting body can be connected to the door element and is connected to the lever body by a lever joint, that the lever body has a front piece which holds at least one holding magnet which is or can be connected to the closure element in a force-fitting manner in the holding position, and that a coupling unit with a coupling body is provided which, at a distance from the lever joint, is connected on the one hand in an articulated manner to the mounting body and on the other hand in an articulated manner to the lever body and in an articulated manner to the connecting part of the locking unit.

[0024] The retaining lever is preferably rotatable relative to the mounting part about a lever axis of the lever joint. During this process, the coupling body of the coupling unit, which is preferably plate-shaped, is rotated. The rotation of the coupling body, which occurs upon actuation of the retaining lever, transmits a force from the coupling body to the connecting part of the force transmitter, and the locking unit is actuated cyclically in steps with each actuation of the retaining lever.

[0025] Preferably, at least one return spring is provided, which acts directly or indirectly on the force transmitter or on the coupling unit and automatically returns the locking unit from the holding position to the release position. The return spring can also act on the mounting part on the one hand and on the holding lever on the other.

[0026] Since the force transmitter, the coupling unit and the mounting part as well as the holding lever are coupled to one another, the return spring can act on each of these parts in order to return the force transmitter or to rotate the mounting part and the holding lever apart. The return spring can be arranged coaxially to the force transmitter and can be in the form of a helical spring, for example. The return spring can also enclose the central shaft with several turns and act with a first end piece on the mounting part and a second end piece on the holding lever in order to rotate them apart. In preferred embodiments, a first return spring which acts on the force transmitter and / or a second return spring which acts on the mounting part and the holding lever and preferably encloses the central shaft are provided.

[0027] The locking mechanism is designed so that it can be cyclically closed and opened again, and the force transmitter, which is supported by the return spring, is moved back and forth by the required amount. The locking mechanism is released by pressing the force transmitter beyond a detent position. The released force transmitter is then pushed back by the return spring and a torque is exerted on the holding lever via the coupling body, by means of which torque the holding lever is released from the magnet and the separating element connected to the holding device can be returned from the closed position.

[0028] In preferred embodiments it is provided that the coupling body is connected to a lever shaft which is held by the lever body, and to a mounting shaft which is held by the mounting body, and that the coupling body is connected in an articulated manner to the connecting part of the locking unit by means of the lever shaft, by means of the mounting shaft or by means of a preferably provided coupling shaft. The actuating force can therefore be introduced from the coupling body into the force transmitter in various ways. The lever shaft and / or the mounting shaft and / or the coupling shaft are preferably aligned parallel to one another. The force can, however, be transmitted between the mounting body and / or the lever body and / or the connecting part by any desired complementary connecting parts or coupling parts, such as hooks, cams, recesses and the like.The coupling body itself preferably consists of one piece, preferably a plate, but can consist of two or more parts. For example, the coupling body forms a lever or a lever mechanism with a first lever part and a second lever part. The first lever part is, for example, connected on the one hand to the mounting shaft and on the other hand to the coupling shaft. The second lever part is, for example, connected on the one hand to the lever shaft and on the other hand to the coupling shaft. The two lever parts therefore preferably form a knee joint which acts on the force transmitter or the connecting part and pushes it back when the holding lever is turned against the mounting part. It is therefore sufficient if the coupling shaft or a part connected to it acts on the connecting part of the force transmitter.

[0029] In particular, if an additional coupling shaft is dispensed with and only the lever shaft held by the lever body and the mounting shaft held by the mounting body are provided, it is preferably provided that the lever shaft is held in a guide track in the lever body and is articulated to the connecting part of the locking unit, or that the mounting shaft is held in a guide track in the mounting body and is articulated to the connecting part of the locking unit. The lever shaft or mounting shaft held in the guide track is therefore positively guided in order to cyclically actuate the locking unit.

[0030] The holding device is advantageously constructed with only a few parts and can therefore be manufactured cost-effectively and assembled easily.

[0031] The holding device can advantageously be mounted on just one door element, if necessary on a door element of a folding door or folding / sliding door. It is therefore not necessary to mount device parts on a first and a second door element, to align and position them correctly against one another and to connect them together. The installation of the holding device itself on the associated door element is also uncritical and can be carried out using simple measures. It must only be ensured that the holding magnet of the holding device can interact with the stationary magnetic or ferromagnetic locking element when the door, or folding door, is in the closed position. The holding device is therefore universally applicable and can also be retrofitted to already installed functional units or pieces of furniture.Furthermore, it is possible to arrange the holding device stationary and, for example, to connect it to the body of the functional unit, while the locking element is connected to the door element.

[0032] The locking unit, which is preferably arranged within the mounting part or within the retaining lever, is preferably cylindrical. The force transmitter is preferably an actuating piston, which is preferably axially guided in a cylindrical housing. However, the force transmitter can also be rod-shaped or have a different shape.

[0033] The mounting part and the holding lever can preferably be lowered into one another, so that the holding device takes up only a small amount of space in the closed position or in a parking position in which the door elements of a folding door are folded against one another, which space is essentially determined by the dimensions of the locking unit.

[0034] The mounting body is preferably at least partially U-shaped and comprises two side walls connected by a body centerpiece, which define a receiving chamber in which the locking unit is fully or partially received and held in a force-fitting or positive-fitting manner. Alternatively, the locking unit can also be arranged in the retaining lever.

[0035] When the locking unit is arranged within the U-profile-shaped mounting body and when a coupling shaft is avoided, each of the side walls preferably has a guide track so that the mounting shaft is securely guided on both sides in the two guide tracks which are opposite one another and run parallel to one another. When the locking unit is arranged within the U-profile-shaped lever body and when a coupling shaft is avoided, each of the side parts of the lever body preferably has a guide track so that the lever shaft is securely guided on both sides in the two guide tracks which are opposite one another and run parallel to one another. The mounting shaft and / or the lever shaft and / or the coupling shaft are preferably held and / or guided on both sides.

[0036] The guide track or guide tracks 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 that is traversed by the assembly shaft or lever shaft at the beginning of the closing process is therefore preferably inclined with respect to the longitudinal axis of the assembly part. The angle of inclination of this track section is preferably around 45°. The track section of the guide tracks that is first traversed by the assembly shaft during the opening process is preferably also inclined, resulting in a greater track length without taking up more space in the axial direction.

[0037] The length of the guideways is preferably selected such that the force transmitter can be displaced beyond the locking position into a transition position, at least upon the second pressure application. This enables a so-called over-pressing of the folding door in the closing direction in order to engage a retaining element with an anchor or to release it from the anchor.

[0038] Preferably, the force transmitter is supported within the locking unit by a return spring which counteracts the pressure effect of the coupling body on the force transmitter and, after it has been released from the locking position and transferred into the transition position, automatically moves the force transmitter back into the release position in which the holding lever is pivoted out relative to the mounting part.

[0039] The corresponding force for the mutual rotation of the mounting part and the retaining lever can also be exerted by an external power source. In preferred embodiments, a further spring element can also act on the mounting part and the retaining lever. For example, a spring, such as a helical spring, is arranged in the region of the central shaft and / or remote from the central shaft. Furthermore, a leaf spring can be provided between the mounting part and the retaining lever.

[0040] The locking unit is preferably adjustable and, for this purpose, comprises an adjusting part with an engagement element that can be actuated by means of a tool that can preferably be inserted into the receiving chamber through an adjusting channel provided in the mounting body. The tool can be used, for example, to adjust the locking position or the transition position.

[0041] The connecting part is simple or preferably U-shaped in profile and has one or two connecting plates, each provided with a connecting track, between which the part of the coupling body provided with the mounting shaft or the lever shaft or the coupling shaft is held. The mounting shaft, lever shaft or coupling shaft is therefore preferably guided on both sides by a connecting track in the connecting part and by a guide track in the mounting body or in the lever body, which is why no torsional forces act on the mounting shaft, lever shaft or coupling shaft and the coupling unit. A compressive force acting on the holding device can therefore be transmitted to the locking unit without significant losses. The locking unit can also transmit forces back via the force transmitter with minimal losses during the opening process.

[0042] The connecting track(s) provide the mounting shaft with the freedom to follow the guide track(s), even if these are not linear. Therefore, when the force transmitter is displaced, blockage of the mounting shaft, the lever shaft, or the coupling shaft is always avoided.

[0043] 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 fully or partially sunk.

[0044] In a preferred embodiment, the lever body has a tool channel through which a tool part can be guided to actuate a mounting screw guided through the mounting body. This allows the holding device to be advantageously mounted and dismounted.

[0045] On the front piece facing away from the central shaft, the lever body of the holding lever preferably holds at least one spacer roller. For example, the front piece is fork-shaped and has a bearing shaft penetrating it, by means of which one or more spacer rollers are held. The spacer rollers ensure that the front piece of the holding lever cannot collide with any part of the piece of furniture in the closed position, and that in the parking position, after the folding door has been folded, it cannot collide with the adjacent door element. The spacer rollers are preferably dimensioned such that the holding magnet cannot touch the locking element.

[0046] In a further preferred embodiment, it is provided that the lever body has a magnetic chamber into which the holding magnet is sunk.

[0047] The magnet chamber is preferably connected to a through-opening through which a connecting screw is passed, connecting the holding magnet to a threaded part which is preferably supported on a support spring and which holds the holding magnet axially displaceably or pivotably or axially displaceably and pivotably. 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 magnetically optimally with the magnetic or ferromagnetic locking element even when the holding lever is not aligned parallel to the mounting part and / or the locking element. When the folding door is in the closed position, the holding lever can therefore still be rotated relative to the mounting part 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 mounting shaft, retaining shaft or coupling shaft can therefore be transferred from the locking position to the transition position in which the mounting part and the retaining lever can now actually be aligned with their longitudinal axes parallel to each other.

[0048] After the holding device is released from the locked position, the mounting shaft is returned along the guide track(s) by spring force, rotating the holding lever away from the mounting part and, in the process, also tilting it relative to the locking element. The holding magnet is thereby lifted laterally and released from the locking element. Therefore, the holding magnet is not lifted from the locking element head-on, which would require considerable force, but is gradually released by a slow tilt, which can be achieved with little force. The holding magnet can therefore adhere reliably to the locking element in the closed position and yet still be easily released from the locking element during the opening process.

[0049] The closure 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, consisting, 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 closure element can also be a permanent magnet.

[0050] The closure element can be an integral part of the functional unit, possibly of a piece of furniture, or it can be connected to a part of the functional unit at a suitable location, for example screwed, glued or inserted in a form-fitting manner. For example, the functional unit comprises a ferromagnetic rail or a ferromagnetic cover with which the holding magnet can interact magnetically. Direct physical contact between the holding magnet and the closure element is not necessary and is preferably avoided by covering the holding magnet on the side facing the closure element and / or the closure element on the side facing the holding magnet with a protective layer, for example made of plastic, or by providing spacing by other means. The holding magnet and / or the closure element can also be countersunk into an adjacent part, thus preventing contact.

[0051] The holding magnet is preferably held in a magnetic cup, which is preferably made of plastic and preferably slightly projects beyond the holding magnet. When the door is in the closed position, the magnetic cup, which is preferably elastically designed and / or elastically mounted, comes into contact with the locking element. Impacts and disturbing noises are avoided by the magnetic coupling of the holding magnet to the locking element. However, the magnetic coupling of the holding magnet to the locking element still results in a stable connection that securely holds the door in the closed position.

[0052] 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 appropriately dimensioned magnetic chamber.

[0053] Preferably, a connecting screw is inserted through a through-hole 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 guided through the through-hole to the magnet chamber. Due to the play of the threaded pin within the through-hole and the flexible mounting of the holding plate by means of a support spring, the threaded pin can be tilted to the side. The holding magnet can also be tilted to the side using the connecting screw in order to automatically align itself optimally relative to the holding element. The preferably spiral-shaped support spring is compressed accordingly.

[0054] The functional unit, a building unit lockable by at least one door or one folding door, or a piece of furniture lockable by at least one door or one folding door, typically comprises at least one door compartment in which the folded folding door can be parked. The functional unit can, for example, comprise 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 comprise two single doors or two folding doors.

[0055] A folding door comprises two door elements connected by folding door hinges and rotatable relative to each other about a pivot axis. One of the door elements is connected to a holding device according to the invention such that, in the closed position of the folding door, the holding magnet can interact with the stationary magnetic or ferromagnetic closure element, which is firmly connected to a part of the functional unit or forms a structural element of the functional unit.

[0056] The holding device is preferably mounted on the underside or top of one of the door elements and aligned parallel to the lower or upper edge of the associated door element. The holding lever and the holding magnet face the functional unit. If the locking element is attached elsewhere, for example, halfway up the cabinet, for example, to a false floor, the holding device can also be attached at this height.

[0057] Preferably, at least one of the folding door hinges is equipped with a hinge spring that rotates the hinge levers of the folding door hinge, which are connected to each other by a hinge axis, relative to each other, 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 retaining device is released from the closed position, the folding door hinges thus support the folding process of the folding door.

[0058] The hinge spring preferably comprises two spring assemblies connected by a spring centerpiece, which enclose the hinge axis and each have a spring endpiece resting on the first hinge lever, while the spring centerpiece rests on the second hinge lever. The spring assemblies are preferably helical or spiral.

[0059] Preferably, at least one of the stop hinges connected to a one-piece door or a folding door is also equipped with a hinge spring. The opening process of the one-piece door or the folding process of the folding door, starting from the closed position, is therefore preferably assisted by at least one stop hinge and / or at least one folding door hinge.

[0060] The functional unit, or possibly the piece of furniture, can be designed as desired. Preferably, the door element is connected at one edge by stop hinges to a mounting profile, which is slidably mounted within a door compartment of the piece of furniture, and at an opposite edge, by folding door hinges, optionally to a second door element. The second door element is preferably connected at an edge remote from the folding door hinges to a guide carriage, which is guided in a guide rail that runs along the front of the piece of furniture and which preferably holds the magnetic or ferromagnetic locking element.

[0061] The invention is explained in more detail below with reference to the drawings. Herein:

[0062] Fig. 1 shows a functional unit 1 according to the invention in the

[0063] Design of a piece of furniture with a folding door 11 having two door elements 111, 112, which is equipped with a holding device 2 according to the invention and which can be inserted into a first door compartment 10, and with a door 11 with only one door element 111, which is equipped with a holding device 2 according to the invention and can be inserted into a second door compartment 10;

[0064] Fig. 2 shows the rear side of the folding door 11 of the piece of furniture 1 of Fig. 1 with the first door element 111, which is connected at the trailing edge by stop hinges 13 to a mounting profile 12 and at the leading edge by folding door hinges 3 to a second door element 112 and on which a preferably designed holding device 2 is mounted, which has a holding magnet 282, which in the closed position of the folding door 11 interacts with a magnetic or ferromagnetic closure element 20, which is held stationary by a part of the piece of furniture 1;

[0065] Fig. 3 shows an exploded view of the holding device 2 of Fig. 2, which comprises a mounting part 21 with a mounting body 211, a holding lever 22 with a lever body 221, a central 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;

[0066] Fig. 4 shows a part of the folding door 11 of Fig. 2 shortly before reaching the

[0067] Closed position or shortly after release from the closed position;

[0068] Fig. 5 shows the folding door 11 of Fig. 4 with the first door element 111 in a sectional view and the second door element 112 in parallel alignment, in which the folding door 11 can be inserted into the associated door compartment 10;

[0069] Fig. 6a the lever body 221 of Fig. 3 with a view of a lever chamber

[0070] 2210, into which the mounting body 211 can be sunk;

[0071] Fig. 6b the lever body 221 of Fig. 3 with a view of a

[0072] Magnet chamber 2218 into which the holding magnet 282 of Fig. 3 is inserted;

[0073] Fig. 6c the mounting body 211 of Fig. 3 with a view of a

[0074] Receiving combs 2110, into which the locking unit 24 of Fig. 3 can be inserted;

[0075] Fig. 6d shows the mounting body 211 of Fig. 3 with a view of a side which can be connected to one of the door elements 111, 112 of Fig. 1;

[0076] Fig. 7a the front side of the holding device 2 of Fig. 3 with the

[0077] Locking element 20 released holding magnet 282 before reaching the closed position or after leaving the closed position;

[0078] Fig. 7b the front side of the holding device 2 of Fig. 7a in the

[0079] Closed position of the door 11 or the folding door 11 of Fig. 1 with the holding magnet 282 which is magnetically coupled to the closure element 20;

[0080] Fig. 7c shows the front side of the holding device 2 of Fig. 7b during the over-pressing process by which the holding device 2 is brought into the holding position or released from the holding position;

[0081] Fig. 8 the holding device 2 in the position of Fig. 7a with a

[0082] Longitudinal section through the mounting body 211 and the lever body 221;

[0083] Fig. 9a the holding device 2 in a further preferred

[0084] Design with the holding magnet 282 released from the closure element 20 before reaching the closed position or after leaving the closed position;

[0085] Fig. 9b shows the holding device 2 of Fig. 9a with a longitudinal section through the mounting body 211 and the lever body 212 with a view of the locking unit 24 and the preferably designed coupling unit 25;

[0086] Fig. 10a shows the holding device 2 of Fig. 9a in the closed position of the door 11 or the folding door 11 of Fig. 1 with the holding magnet 282 which is magnetically coupled to the closure element 20;

[0087] Fig. 10b shows the holding device 2 of Fig. 10a with a longitudinal section through the mounting body 211 and the lever body 212;

[0088] Fig. 11a the holding device 2 of Fig. 9a during the process of

[0089] Overpressure, by which the holding device 2 is brought into the holding position or released from the holding position;

[0090] Fig. 11b shows the holding device 2 of Fig. 11a with a longitudinal section through the mounting body 211 and the lever body 212;

[0091] Fig. 12 shows the holding device 2 of Fig. 9a in an exploded view; Fig. 13a shows the holding device 2 of Fig. 9a in an exploded view from the front;

[0092] Fig. 13b shows the holding device 2 of Fig. 9a in an exploded view from the rear;

[0093] Fig. 13c shows the holding device 2 of Fig. 9a with a longitudinal section through the mounting body 211 and the lever body 212;

[0094] Fig. 14a the locking unit 24 of Fig. 3 or Fig. 9b and the

[0095] Coupling unit 25 in preferred embodiments; and

[0096] Fig. 14b the coupling unit 25 in the embodiment of a

[0097] knee joint .

[0098] Fig. 1 shows a functional unit 1 according to the invention in the embodiment 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 can be inserted into a second door compartment 10. The piece of furniture 1 preferably has side walls 1A, a top panel 1B, a bottom panel IC, an intermediate panel IE, and partition walls ID on both sides, which, together with the side walls 1A, delimit the door compartments 10.

[0099] The folding door 11 has a first door element 111, which is connected on one side to a mounting profile 12 by stop hinges 13, and on the other side to a second door element 112 by folding door hinges 3, the dimensions of which preferably correspond to the dimensions of the first door element 111. The folding door 11 is slightly unfolded and can either be fully folded and retracted into the door compartment 10 with the door elements 111, 112 aligned parallel to one another, or fully unfolded and transferred into a closed position in which the two door elements 111, 112 are at least approximately aligned in one plane. To ensure 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, in the closed position, lies opposite a locking element 20.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 locking element 20 upon rotation of the door element 111 and is magnetically held by the latter in the closed position of the folding door 11. The second door element 112 is not connected to the holding device 2 or any part thereof, which is why related assembly work and work for the mutual alignment of device parts is eliminated. The alignment of the holding device 2 with respect to the locking element 20, however, can be carried out without difficulty. The locking 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 by screwing or gluing.The closure element 20 can also be part of a structural element of the piece of furniture 1.

[0100] Fig. 1 shows that the holding device 2 is preferably arranged on the top side of the door element 111. However, the holding device 2 can also be arranged at a different location on the door element 111. For example, the closure element 20 can also be mounted on the intermediate floor IE and the holding device 2 on the door element 111 at a corresponding height.

[0101] The use of the holding device 2 in conjunction with the folding door 11 is particularly advantageous because the holding device 2 is enclosed between the door elements 111, 112 and does not cause interference. The holding device 2 can also be advantageously used on the one-piece door 11, with the advantage that the holding device can be realized with only small dimensions.

[0102] The holding device 2 according to the invention can be used with any functional units, possibly pieces of furniture, which have single-part or multi-part doors, which in preferred embodiments can be parked in a door compartment.

[0103] In the embodiment shown in Fig. 1, the doors 11 are each connected by stop hinges 13 to a mounting profile 12, which is held in a vertical orientation by a sliding 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. For movement within the door compartment 10, the mounting profile 12 can also be provided with drive devices. Preferably, the mounting profile 12 is connected on the top side to a support carriage 5A, which can be moved along an associated support rail 15A into the door compartment 10. The mounting profile 12 can also be connected on the bottom side to a carriage guided in a support rail.In this preferred embodiment, the second dividing element 112 of the folding door 11, whose leading edge is connected to a guide track 5B, is also guided by a guide rail 15B that 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 at the front by the guide track 5B, which can be moved along the front of the piece of furniture 1 when the folding door 11 is unfolded and into the door compartment 10 when the folding door 11 is folded closed. The guide track 5B always precedes the second dividing element 112 in the direction of movement.

[0104] Fig. 2 shows the rear of the folding door 11 of the piece of furniture 1 from Fig. 1 with the first door element 111, which is connected at the trailing edge to the mounting profile 12 by stop hinges 13 and at the leading edge to the second door element 112 by folding door hinges 3, on the front side of which the guide carriage 5B is mounted. The guide carriage 5B comprises support rollers 51, which can roll on a support element 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 side of the piece of furniture 1 and around a curve into the door compartment 10 of the piece of furniture 1. In order for the guide carriage 5B to be able to follow this curve, it is connected to the second door element 112 by parts 53, 54 of a carriage body which are connected to one another in an articulated manner.

[0105] The mounting profile 12 is connected at the upper end to a support carriage 5A, which can be moved along a support rail 15A into the door compartment 10. In Fig. 2, the support carriage 5A is guided up to a stop device 7 on the front of the door compartment 10. In this position, which is also shown in Fig. 1, the folding door 11 is fully extended from the door compartment 10 and can be unfolded to close the furniture opening 100 (see Fig. 1). 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 can magnetically interact with the locking element 20, which is connected to the front of the guide rail 15B.

[0106] The holding device 2 comprises a mounting part 21, which is preferably connected by screws to the first door element 111 and by means of a central shaft 23 in an articulated manner to a holding lever 22. On the front end piece or front piece 2219, the holding lever 22 is provided with a holding magnet 282 and optionally with two spacer rollers 229. The optionally provided spacer rollers 229 can roll on the locking 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 touching the locking element 20 or the guide rail 15B. In this process, the holding lever 22 is rotated and the holding magnet 282 is aligned almost frontally against the locking element 20 so that it can magnetically couple to the magnetic or ferromagnetic locking element 20.

[0107] It is described below that the holding device 2 comprises a force transmitter 241 (see, for example, Fig. 3 and Fig. 9b) which can be displaced in a locking unit 24 by the application of pressure cyclically 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 to the closure element 20 by a first manual pressure application on the door element 111 and thus on the holding device 2 in the closed position, and unlocked and released again from the closure element 20 by a second manual pressure application on the door element 111 and thus on the holding device 2.

[0108] After being released from the closed position, the two door elements 111, 112 are preferably folded automatically. This folding process is preferably assisted by folding door hinges 3, which connect the two door elements 111, 112 to each other and are equipped with a hinge spring 34 comprising two spring assemblies 341, 342 connected by a spring centerpiece. The hinge spring 34 acts on the two hinge levers 31, 32, which are connected to each other by a hinge axis 33 on the one hand and each connected to a hinge cup 39 on the other.

[0109] Fig. 2 also shows a spacer plate 200 which has no 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 parallel, the front piece 2219 with the spacer rollers 229 rests against the spacer plate 200 and is pressed against the mounting part 21 and preferably aligned parallel thereto, so that it takes up as little space as possible when pushed into the door compartment 10. Space is thus kept free for the sliding 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 from Fig. 2 in a preferred embodiment.The holding device 2 comprises a mounting part 21 with a mounting body 211, a holding lever 22 with a lever body 221, a central 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.

[0110] The central shaft 23, which is formed in one or more parts, forms a lever joint, which forms the first articulated connection between the mounting part 21 and the holding lever 22. The central shaft 23 or corresponding parts of the central shaft 23 can also be formed on the mounting body 211 or on the lever body 212.

[0111] The mounting body 211 and the lever body 221 each have a coupling part 2111, 2211 on the rear side, in a preferred embodiment, with a bearing bore through which the bearing shaft 23 can pass. In the drawing, the bearing shaft 23 is inserted into the mounting body 211. The holding lever 22 can therefore be rotated around the mounted bearing shaft 23 relative to the mounting part 21.

[0112] The coupling unit 25 comprises a coupling body 253, which holds a mounting shaft 251 at one end and a lever shaft 252 at the other end. The mounting shaft 251 and the lever shaft 252 are aligned parallel to one another. The coupling unit 25 is shown twice. Once, the coupling unit 25 or the mounting shaft 251 is shown in connection with the mounting body 211 and once in connection with the locking unit 24. However, only one coupling unit 25 is used.

[0113] The mounting body 211 has a connecting plate 2119 with a through-hole at both ends, through which mounting screws can be passed 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 are provided. For example, the mounting body 211 can also be connected to the door element 111 using an adhesive or by means of a positive fit.

[0114] 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 groove 2110 in which the locking unit 24 can be held in a force-fitting and / or form-fitting manner. Each of the side parts 2116 has a mounting shaft bearing in the form of a guide track 2112. The mounting shaft 251 of the coupling unit 25 passes through the guide tracks 2112, which are aligned parallel to one another. The mounting shaft 251 is displaceably mounted in the track-shaped mounting shaft bearing 2112.

[0115] The locking unit 24 comprises a force transmitter 241, which is displaceably mounted within a housing 242 of the locking unit 24 and is supported by a return spring 248, which counteracts any pressure application and pushes back the force transmitter 241. The force transmitter 241 is also connected to a locking mechanism 249, which cyclically switches between a locking position and a release position upon sequential pressure applications of the force transmitter 241. The locking mechanism 249 is explained in more detail below with reference to Fig. 14a as an example. Devices with a locking mechanism are available on the market. Thus, any devices with a locking mechanism can be integrated into the holding device 2.On the rear side of the housing 242, an adjustment part 245 is provided, by means of which the locking mechanism 249 can be positioned to precisely adjust the locking position. To actuate the adjustment part 245, an adjustment channel 2114 is provided in the mounting body 211, through which a tool, for example a screwdriver, can be inserted (see Fig. 8).

[0116] The force transmitter 241 is, for example, a cylindrical piston that is displaceably mounted in the hollow cylindrical housing 242. A housing collar 243 is provided on the front of the housing 242, which collar can be inserted into a retaining groove 2113 provided in the receiving comb 2110 of the mounting body 211. The retaining groove 2113 holds the locking unit 24 axially immovably within the receiving comb 2110.

[0117] On the front side, the force transmitter 241 is provided with a fork-shaped connecting part 246, which has connecting tracks 2460 through which the mounting shaft 251 of the coupling unit 25 passes. Thus, the mounting shaft 241 of the coupling unit 24 passes through the connecting tracks 2460 of the connecting part 246 and the track-shaped mounting shaft bearings or guide tracks 2112 of the mounting body 211. The lever shaft 252 of the coupling unit 25, on the other hand, is rotatably but immovably held in bearing openings or in a lever shaft bearing 2212 of the lever body 221.

[0118] In Fig. 3, the mounting shaft 251 is at the front end of the guideways

[0119] 2112. The force transmitter 241 is therefore displaced forward as far as possible. If the holding lever 22 is now rotated about the bearing shaft 23 against the mounting part 21, the lever shaft 252 with the coupling body 253 is displaced downward, which is why the mounting shaft 251 is displaced along the guideways 2112 and the force transmitter 241 is pushed into the housing 242 of the locking unit 24.

[0120] The guideways 2112 are curved, which is why the mounting shaft 251 is not displaced parallel to the longitudinal axis of the mounting body 211, but also performs a movement perpendicular thereto. To allow this movement of the mounting shaft 251 perpendicular to the longitudinal axis of the mounting body 211, the connecting tracks 2460 are provided in the connecting part 246, which is connected to the force transmitter 241.

[0121] The inclination of the guideways 2112, starting from the position in which the mounting shaft 251 is held in Fig. 3, allows an adjustment of the force required to actuate the locking unit. The steeper the curve, the easier the mounting shaft 251 can be moved downwards, while at the same time the displacement of the force transmitter 241 in the axial direction is reduced accordingly. Due to the curvature of the guideways 2112 on the other side, the guideways 2112 can be extended without extending by the corresponding length in the axial direction and a corresponding extension of the

[0122] Mounting body 211 is required.

[0123] The lever body 221 has a collar opening 2213 on its upper side, 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 connecting plate 2119 of the mounting body 211.

[0124] 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 by the magnetic cup 283 on the damping disk 284 and pierced by a connecting screw 281 which is guided on the other side of the lever body 221 through a support spring 285 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 retaining plate 2862, which, together with the support spring 285, is inserted into a retaining chamber 2215 in the lever body 221 (see Figs. 6a and 6b). The retaining plate 2862 is thus supported by the support spring 285 and can tilt sideways with the retaining magnet 282.The threaded pin 2861 preferably extends with sufficient clearance into a through-hole 22180, which connects the magnet chamber 2218 to the holding chamber 2215. The holding magnet 282 can therefore automatically align itself with respect to the contact plate 20 and optimally magnetically couple to it, as described in more detail below with reference to Fig. 7b. The damping disc 284, which is made of silicone, for example, prevents noise during processes for coupling or decoupling the holding magnet 282 to or from the closure element 20.

[0125] The fork-shaped front piece 2219 of the retaining lever 22 is pierced by a bearing shaft 2291, which holds two spacer rollers 229. The spacer rollers 229 prevent the lever body 221 from striking the locking element 20, a cabinet part, or the adjacent partition element 112.

[0126] Fig. 4 shows a portion of the folding door 11 of Fig. 2 shortly before reaching the closed position or shortly after being released 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 locking element 20. The retaining lever 22 is inclined relative to the mounting part 21 and faces the locking element 20, and will first contact the latter with the spacer rollers 229 provided on the front piece 2219. The spacer rollers 229, preferably made of plastic, will hardly make any noise.

[0127] The holding magnet 282 is recessed into the magnet chamber 2218 and is partially enclosed by the magnet cup 283 and projects beyond it at the front, for example by 0.2 mm - 2 mm, so that the holding magnet 282 cannot strike the closure element 20.

[0128] The locking unit 24 with the force transmitter 241 is shown schematically. The force transmitter 241, supported by the return spring 248, is axially displaceable and actuates the locking mechanism 249 (see Fig. 14a) by displacement between a first displacement position a1, a second displacement position a2, and a third displacement position a3. The resulting function of the locking mechanism 249 is explained below with reference to Fig. 14a.

[0129] In this position of the folding door 11 and the folding door hinge 3, the hinge spring 34 is tensioned and attempts to fold the door elements 111, 112 back against each other, counteracting the force exerted by the user. Therefore, the holding device 2 must be magnetically coupled to the locking 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.

[0130] Fig. 5 shows the folding door 11 of Fig. 4 with the first door element 111 in a sectional view separated from the folding door hinge 3 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 spacer 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 takes up very little space even within the door compartment 10.

[0131] 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 relative to one another, which is why the hinge spring 34 is relaxed or largely relaxed.

[0132] 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 have already been partially described with reference to Fig. 3. The lever body 221 and the mounting body 211 are described in more detail below.

[0133] Fig. 6a shows the underside of the lever body 211 facing the mounting part 21. The lever body 211 is partially U-shaped and comprises two side walls 2216 connected to one another by a body centerpiece 2217, which define a lever chamber 2210 into which the mounting part 21 can be fully or partially lowered. Also shown are the two bearing blocks of the lever shaft bearing 2212, the tool channel 2214, and the holding chamber 2215, which preferably completely accommodates the support spring 285 and the threaded part 286 of Fig. 3.

[0134] Fig. 6b shows the lever body 221 of Fig. 3 with a view of the magnet chamber 2218, into which the holding magnet 282 of Fig. 3 is inserted. The holding magnet 282 and the magnet cup 283 are shown in a sectional view, which is why it is visible 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 adjoins the magnet 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 lifted and pivoted out of the magnet chamber 2218 by the action of force. As soon as the holding magnet 282 is released from the closure element 20, it is retracted by the support spring 285 against a damping element or a damping disc 284, which dampens impact noises.

[0135] 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 define a receiving groove 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 are located opposite one another.

[0136] Fig. 6d shows the mounting body 211 of Fig. 3 with a view of the side which is connected or screwed to one of the door elements 111, 112 of Fig. 1.

[0137] Fig. 7a shows the front of the holding device 2 of Fig. 3 with the holding magnet 282 released from the closure element 20 before reaching the closed position or after leaving the closed position. The holding lever 22 is rotated as far outward as possible and contacts the closure element or contact plate 20 with the spacer 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 closure element 20, the holding magnet 282 can magnetically couple to the closure element 20 without touching it, and thus without a perceptible impact noise. The front piece of the mounting body 211 is cut open to show that the mounting shaft 251 penetrates the connecting track 2460 of the connecting part 246 and the guide track 2112 of the mounting body 211 on both sides. In this position of the holding device 2, the mounting shaft 251 is held at a first end 21121 (see Fig. 7b) of the guide track 2112.The force transmitter 241 is located in Fig. 7a at the third displacement position a3 of Fig. 4.

[0138] Fig. 7b shows the front side of the holding device 2 of Fig. 7a in the closed position of the door 11 or the folding door 11 of Fig. 1. In this position, the locking unit 24 is locked and the mounting shaft 251 is held firmly near 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 closure element 20, has been pivoted out by compression of the support spring 285 (see Fig. 3). It should be noted that the holding device 2 does not reach the position shown in Fig. 7b directly from the position of Fig. 7a, but only via the position of Fig. 7c. Likewise, the position of Fig. 7a is not reached directly from the position of Fig. 7b, but only via the position of Fig. 7c. The power transformer 241 is located in Fig.

[0139] 7b at the first shift position al of Fig. 4.

[0140] Fig. 7c shows the front side of the holding device 2 of Fig. 7b during the overpressure process by which the holding device 2 is brought into the holding position or released from the holding position. In this position, the mounting shaft 251 is guided to the end 21122 of the guide track 2112 and the force transmitter 241 is moved into the second displacement position a2 of Fig. 4. From this position, the holding device 2 can be brought back into the holding position of Fig. 7b or into the release position of Fig. 7a. During the transition to the release position, the holding lever 22 is lifted laterally rather than frontally, which is why the holding magnet 282 can be released from the closure element 20 with reduced force.

[0141] 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, which are articulated to one another at the rear by the lever joint 23 and the central shaft 23, respectively, and at the front by the coupling unit 25. The mounting body 211 has an adjustment channel 2114 through which a screwdriver can be axially inserted to rotate the adjustment 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 tightly into the associated door element.

[0142] Also shown are the holding magnet 282 and the threaded part 286, which are connected to each other by a connecting screw 281. The threaded part 286, which is arranged within the holding chamber 2215, is pushed upward by a spiral 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 closure element 20, the threaded part 286 is drawn further into the holding chamber 2215 and the holding magnet 282 is pulled slightly out of the magnetic chamber 2218 and rotated against the closure element 20. The holding magnet 282 can therefore fully couple to the closure element 20 within the holding position of the holding device 2 without the holding lever 22 being aligned parallel to the closure element 20 (see Fig. 7b).

[0143] When the holding lever 22 rotates about the lever joint 23 relative to the mounting body 21, the coupling body 253 rotates, via which a force is transmitted to the force transmitter 241 by means of the mounting shaft 251. During this process, the mounting shaft 251 moves along the guide track 2112. In the preferred embodiment of the holding device 2 described below, this force is transmitted from the coupling body 253 to the force transmitter 241 by means of a coupling shaft 250.

[0144] Fig. 9a shows the holding device 2 in a further preferred embodiment with holding magnets 282 released from the closure element 20 before reaching the closed position or after leaving the closed position.

[0145] The holding device 2 of Fig. 9a differs from the holding device 2 of Fig. 8 essentially in the type of force transmission from the coupling unit 25 to the locking unit 24.

[0146] Furthermore, the lever joint 23, which is shifted towards the front side of the mounting body 211 and by means of which the mounting body 211 and lever body 212 are connected to one another in an articulated manner, is shown in a preferred embodiment.

[0147] The holding lever 22 is preferably equipped with two holding magnets 282, which are preferably mounted elastically or supported by a spring, for example as described with reference to Fig. 8. The holding lever 22 can also have only one holding magnet 282.

[0148] Fig. 9b shows the holding device 2 of Fig. 9a with a longitudinal section through the mounting body 211 and the lever body 212 with a view of the locking unit 24 and the preferably configured coupling unit 25. In this embodiment, the coupling body 253 of the coupling unit 25 additionally holds a coupling shaft, which engages in the connecting track(s) 2460 of the connecting part 246 of the force transmitter 241. The force transmitter 241 is extended, and the plate-shaped coupling body 253 has been rotated clockwise by the holding lever 22, whereby the coupling shaft 250 has been guided forward.

[0149] Fig. 10a shows the holding device 2 of Fig. 9a in the closed position of the door 11 or the folding door 11 of Fig. 1 with the holding magnets 282 which are magnetically coupled to the closure element 20.

[0150] Fig. 10b shows the holding device 2 of Fig. 10a with a longitudinal section through the mounting body 211 and the lever body 212. By rotating the holding lever 22, the coupling body 253 was rotated counterclockwise and the force transmitter 241 was almost completely inserted into the locking unit 24. Fig. 11a shows the holding device 2 of Fig. 9a during the overpressure process, by which the holding device 2 is brought into the holding position or released from the holding position.

[0151] Fig. 11b shows the holding device 2 of Fig. 11a with a longitudinal section through the mounting body 211 and the lever body 212. The holding lever 22 was pushed further downward and the coupling body 253 was rotated further counterclockwise. As a result, the force transmitter 241 was fully inserted into the locking unit 24 and the locking mechanism 249 was pushed over and released from the holding position or locked into the holding position.

[0152] Fig. 12 shows the holding device 2 of Fig. 9a in an exploded view. The coupling part 2211 of the holding lever 22 is fork-shaped and has two inwardly directed lever shafts 23 or lever shaft segments 23, which can be inserted through mounting tracks 21111 into bearing openings 21110. The lever shaft segments 23 have flattened portions that allow insertion through the L-shaped mounting track 21111 into the bearing openings 21110, in which the lever shaft segments 23 are subsequently rotated and rotatably held.

[0153] Fig. 13a shows the holding device 2 of Fig. 9a in an exploded view from the front. A dash-dotted line L12 symbolically indicates that the lever shaft segments 23 of the holding lever 22 correspond to the bearing openings 21110 of the mounting body 21. Line L51 shows that the mounting shaft 251 is held in the mounting body 21. Line L25 shows that the lever shaft 252 is held in the lever body 221. Line L45 shows that the coupling shaft 250 is held in the connecting part 246 of the locking unit 24.

[0154] Fig. 13b shows the holding device 2 of Fig. 9a in an exploded view from the rear. Optionally, a second return spring 248' is provided, which in all configurations of the holding device 2 can act on the mounting part 21 on the one hand and on the holding lever 22 on the other hand, in order to rotate them apart as soon as the locking device 24 is released. For example, spring coils of the return spring 248' enclose the central shaft 23, while end pieces of the return spring 248' rest against the mounting body 211 and the lever body 221.

[0155] Fig. 13c shows the holding device 2 of Fig. 9a from the side with a longitudinal section through the mounting body 211 and the lever body 212. The corresponding elements of the joint system are assigned to one another by arrows. The mounting shaft bearing 2112 consists of two opposing bearing sleeves in which the mounting shaft 251 is held. The lever shaft bearing 2212, in which the lever shaft 252 is held, is, in contrast, track-shaped. The coupling shaft 250, on the other hand, is displaceably held in the connecting track 2460 of the connecting part 246. The track-shaped configurations of the lever shaft bearing 2212 and the connecting track 2460 allow the lever shaft 252 and the coupling shaft 250 to perform lateral movements during the rotation of the coupling body 253. Guideways can therefore be used as required to allow free rotation of the coupling unit 25.

[0156] Also shown is the return spring 248, which acts on the force transmitter 241. Thus, the return spring 248' of Fig. 13b and / or the return spring of Fig. 13c may be provided. The return spring 248 or the return springs 248, 248' may also be present in other configurations.

[0157] Fig. 14a shows a schematic representation of the locking unit 24 of Fig. 3 or Fig. 9a with the force transmitter 241, which is held in a cylindrical housing 242, supported on a return spring 248 and connected to a circulating lever 2411 via a lever joint 2410. The circulating lever 2411 projects with a front piece into a circulating mechanism 249, which comprises a circulating channel 2490 that encloses a core 2491. During 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 in a clockwise direction around the core 2491 within the circulating channel 2490. From a release position p2, in which the holding device 2 has the position of Fig. 7a or Fig.9a, the circulating lever 2411 is transferred by overpressing the holding device 2 into a first transition position p31, in which the holding device 2 assumes the position shown in Fig. 7c or Fig. 11a. If the pressure from the holding device 2 is now removed, the circulating lever 2411 is transferred into a locking position p1, in which the circulating lever 2411 is held by the frog 2491 and the holding device 2 assumes the position shown in Fig. 7b or Fig. 10a. As soon as renewed pressure is exerted on the holding device, the circulating lever 2411 is brought from the locking position p1 into a second transition position p32, in which the holding device 2 assumes the position shown in Fig. 7c or Fig. 11a, and from there back into the release position p2. By a first overpressure, the force transmitter 241 can be moved into the locking position p1 and by a second overpressure back into the release position p2. Fig.14a further shows the coupling unit 25, which is connected to the connecting part 246 of the force transmitter 241 by the mounting shaft 251, as is also shown in Fig. 8. The mounting shaft 251 thus fulfills a dual function in that, on the one hand, it is connected to the connecting part 246 and, on the other hand, it is articulated to the mounting body 211. However, a preferably provided coupling shaft 250 is shown in dash-dotted lines, which can preferably be coupled to the connecting part 246 instead of the mounting shaft 251.

[0158] Fig. 14b shows the coupling unit 25 in the embodiment of a knee joint with a coupling body 253 which has two coupling levers 2531, 2532 which are connected by the coupling shaft 250 which is used to act on the

[0159] The force transmitter 241 is provided. The lever shaft 252 is in turn pivotally connected to the lever body 221, and the mounting shaft 251 is pivotally connected to the mounting body 211. If the lever shaft 252 and the mounting shaft 251 are actuated, the coupling shaft 250 is deflected and the force transmitter 241 is actuated.

[0160] Reference symbol list:

[0161] 1 functional unit, piece of furniture, especially cupboard

[0162] 1A side walls

[0163] 1B Topsoil

[0164] IC underbody

[0165] ID partition

[0166] 10 first or second door compartment or parking space

[0167] 100 Interior of functional unit 1

[0168] 111 first door element

[0169] 112 second door element

[0170] 11 Door or folding door

[0171] 12 Mounting profile

[0172] 13 hinges

[0173] 15A support rail for the support carriage 5A

[0174] 15B Guide rail for the guide drive 5B

[0175] 151 Support element

[0176] 152 guide channel

[0177] 2 holding device

[0178] 20 magnetic or ferromagnetic locking element

[0179] 200 spacer plate

[0180] 21 Assembly part

[0181] 211 Mounting body

[0182] 2110 intake combs r

[0183] 2111 coupling part

[0184] 21110 Warehouse opening

[0185] 21111 Assembly line

[0186] 2112 Assembly shaft bearing, guideway

[0187] 21121 first end of the guideway 2112

[0188] 21122 second end of the guideway 2112

[0189] 2113 retaining groove

[0190] 2114 Adjustment channel

[0191] 2115 Chamber extension

[0192] 2116 side panels

[0193] 2117 Midsection

[0194] 2119 Connection plate

[0195] 21191 Mounting screw

[0196] 22 Holding lever

[0197] 221 lever body

[0198] 2210 lever chamber

[0199] 2211 coupling part

[0200] 2212 Lever shaft bearing, guideway 2213 Collar opening

[0201] 2214 Tool channel

[0202] 2215 Holding chamber

[0203] 2216 side walls

[0204] 2217 Body centerpiece

[0205] 2218 Magnetic combs r

[0206] 22180 passage opening

[0207] 2219 front piece

[0208] 22190 Warehouse opening

[0209] 229 spacer rollers

[0210] 2291 bearing shaft

[0211] 23 Lever joint, central shaft

[0212] 24 locking unit

[0213] 241 power transformer

[0214] 2410 lever joint

[0215] 2411 Circulating lever

[0216] 242 housings

[0217] 243 Housing collar

[0218] 245 Adjustment part

[0219] 2450 intervention element

[0220] 246 connecting part

[0221] 2460 connecting railway

[0222] 2461 connecting plates

[0223] 248 return spring

[0224] 249 Locking mechanism

[0225] 2490 circulation channel

[0226] 2491 Heart

[0227] 25 coupling unit

[0228] 250 coupling shaft

[0229] 251 mounting shaft

[0230] 252 lever shaft

[0231] 253 Coupling bodies, one-piece or multi-piece

[0232] 2531 first lever part

[0233] 2532 second lever part

[0234] 281 connecting screw

[0235] 282 Holding magnet

[0236] 283 magnetic cups

[0237] 284 Damping disc

[0238] 285 support spring

[0239] 286 threaded part

[0240] 2863 Retaining element 2861 Threaded pin 2862 Holding plate 2863 Retaining element 3 Folding door hinge

[0241] 31 first hinge lever

[0242] 32 second hinge lever

[0243] 33 Hinge axis

[0244] 34 Hinge spring

[0245] 341 first spring package

[0246] 342 second spring package

[0247] 343 spring center piece

[0248] 39 Mounting part, hinge cup

[0249] 5A Supporting chassis

[0250] 5B guide drive

[0251] 51 support rollers

[0252] 52 guide rollers

[0253] 53 first drive body part

[0254] 54 second drive body part

[0255] 9 Shifting device a1 first shifting position a2 second shifting position a3 third shifting position

[0256] Pl locking position p2 release position p31 first transition position p32 second transition position rotation axis y lever axis

Claims

Patent claims 1. Holding device (2) for holding a rotatably mounted door element (111) in a closed position and for releasing the door element (111) from the closed position, with a locking unit (24) which comprises a force transmitter (241) which has a connecting part (246), and a locking mechanism (249) which Locking mechanism (249) of the force transmitter (241) is cyclically adjustable by pressure action between a locking position (p1), in which the locking mechanism (249) reaches a holding position and the holding device (2) is connectable or connected to a closure element (20), and a release position (p2), in which the locking mechanism (249) reaches a release position and the holding device (2) is detachable or detached from the closure element (20), characterized in that the closure element (20) consists at least partially of magnetic or ferromagnetic material, that a mounting part (21) with a mounting body (211) and a holding lever (22) with a lever body (221) are provided, that the mounting body (211) is connectable to the door element (111) and is connected to the lever body (221) by a lever joint (23), that the lever body (221) has a front piece (2219) which holds at least one holding magnet (282),which is or can be connected to the closure element (20) in a force-locking manner in the holding position, and that a coupling unit (25) is provided with a one-part or multi-part coupling body (253) which, at a distance from the lever joint (23), is connected on the one hand in an articulated manner to the mounting body (211) and on the other hand in an articulated manner to the lever body (221) and in an articulated manner to the connecting part (246) of the locking unit (24).

2. Holding device (2) according to claim 1, characterized in that the coupling body (253) is connected to a lever shaft (252) which is held by the lever body (212) and to a mounting shaft (251) which is held by the mounting body (211), and that the coupling body (253) by means of the lever shaft (252), by means of the The mounting shaft (251) is pivotally connected to the connecting part (246) of the locking unit (24) by means of a mounting shaft (251) or by means of a coupling shaft (250). Holding device (2) according to claim 2, characterized in that the lever shaft (252) is held in a guide track in the lever body (212) and pivotally connected to the connecting part (246) of the locking unit (24), or that the mounting shaft (251) is held in a guide track (2112) in the mounting body (211) and pivotally connected to the connecting part (246) of the locking unit (24).Holding device (2) according to claim 1, 2 or 3, characterized in that the coupling unit (25) comprises a coupling body (253) with a first lever part (2531) and a second lever part (2532) and a coupling shaft (250) which cooperates directly or indirectly with the connecting part (246) of the force transmitter (241) and which is articulated on the one hand by the first lever part (2531) and the mounting shaft (251) to the mounting body (211) and on the other hand by the second lever part (2532) and the lever shaft (252) to the holding body (221).Holding device (2) according to one of claims 1-4, characterized in that the mounting body (211) has a receiving comb (2110) in which the locking unit (24) is held in a force-fitting or form-fitting manner, or in that the lever body (212) has a lever chamber (2210) in which the locking unit (24) is held in a force-fitting or form-fitting manner, and in that the mounting body (211) and the lever body (212) can preferably be countersunk into one another. Holding device (2) according to one of claims 1-5, characterized in that a return spring (248) is provided which acts directly or indirectly on the force transmitter (241) or on the. Coupling unit acts and automatically returns the locking unit (24) from the holding position to the release position. Holding device (2) according to one of claims 1-6, characterized in that the connecting part (246) comprises at least one connecting plate (2461) provided with a connecting track (2460) within which the lever shaft (252), the mounting shaft (251) or the coupling shaft (250) is slidably held. Holding device (2) according to one of claims 1-7, characterized in that at least one spacer roller (229) is rotatably held on the front piece (2219) of the lever body (221). Holding device (2) according to one of claims 1-8, characterized in that the front piece (2219) of the lever body (221) has a magnet chamber (2218) into which the at least one holding magnet (282) is countersunk or into which a plurality of holding magnets (282) are countersunk.Holding device (2) according to claim 9, characterized in that a through-opening (22180) adjoins the magnet chamber (2218), through which a connecting screw (281) is guided, which connects the holding magnet (282) to a threaded part (286) which is supported on a support spring (285) and which holds the holding magnet (282) axially displaceable or pivotable or axially displaceable and pivotable. 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 projects beyond it to such an extent that direct contact between the holding magnet (282) and the closure element (20) is avoided, or in 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) with a door element (111) and a holding device (2) according to one of claims 1 - 11, which holding device (2) is connected to the door element (111) and is provided for cooperation with a closure element (20) which is connected to a stationary part of the functional unit (1), or. which holding device (2) is connected to a stationary part of the functional unit (1) and is provided for cooperation with a closure element (20) which is connected to the door element (111).

13. Functional unit (1) according to claim 12, characterized in that the holding device (2) is arranged on the underside or the top side of the door element (111) or that a holding device (2) is arranged on the underside and the top side of the functional unit (1).

14. Functional unit (1) according to claim 12 or 13, characterized in that the door element (111) is connected to a second door element (112) by at least one folding door hinge (3), or that the door element (111) is connected to a second door element (112) by at least one folding door hinge (3), which at least one folding door hinge (3) is equipped with a hinge spring (34) which connects the hinge levers (31, 32) of the folding door hinge (3), which are connected to one another by a hinge axis (33).

15. Functional unit (1) according to claim 12, 13 or 14, characterized in that the door element (111) is connected by stop hinges (13) to a mounting profile (12) which is held displaceably within a door compartment (10) of the piece of furniture (1).

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