Holding device for door and functional entity having holding device

Abstract

A holding device (2) for holding a pivotally mounted door element (111) in a closed position and for releasing the door element (111) from the closed position comprises a locking unit (24) with a force transmitter (241) having a connecting portion (246), and a locking mechanism (249) cyclically transferable by applying pressure between a locking position (p1) in which the force transmitter (241) is connected to the connecting portion (246) and a release position (p2) in which the force transmitter (241) is connected to the connecting portion (246). The locking mechanism (249) reaches a holding position in which the locking mechanism (249) reaches and the holding device (2) is connectable or connectable to the locking element (20), and a release position in which the locking mechanism (249) reaches a release position (p2) and the holding device (2) is separable or separable from the locking element (20). According to the invention, the locking element (20) consists at least partially of a magnetic or ferromagnetic material, provided with a mounting portion (21) having a mounting body (211) connectable to the door element (111) and connected to the lever body (221) by means of a lever joint (23), and with a holding lever (22) having a lever body (221) comprising a front piece (2219) holding at least one holding magnet (282), the coupling unit (25) is provided with a one-piece or multi-piece coupling body (253) pivotally connected, on the one hand, to the mounting body (211) away from the lever joint (23) and, on the other hand, to the lever body (221) and to the connecting portion (246) of the locking unit (24).

Description

Technical Field

[0001] The invention relates to a pressure-operated retaining device for a door, in particular for a foldable door or a foldable sliding door, and to a functional entity, in particular a piece of furniture, which is provided with a door, in particular a foldable door or a foldable sliding door, and is provided with at least one retaining device. Background Art

[0002] In order to close openings in functional entities, such as rooms or furniture, doors are used, usually foldable doors or foldable sliding doors, which are preferably moved into door compartments or storage spaces after the opening has been cleared so that they do not interfere.

[0003] US9284761B2 discloses furniture with a displacement device, by which a mounting profile connected to a foldable sliding door is displaceable within a door compartment. The foldable sliding door comprises two door elements, wherein a first door element is connected to the mounting profile at the rear by a mounting hinge and is connected to the rear of a second door element at the front by a foldable door hinge, the second door element being connected at the front to a guide carriage, the guide carriage being displaceable along a guide rail, the guide rail comprising two track sections which are vertically aligned with each other and connected to each other by a curved section, wherein the first track section extends into the door compartment and the second track section extends along the front of the furniture. The mounting profile is held in vertical alignment by a supporting device and is provided with guide carriages displaceably supported in the guide rails on the upper and lower sides.

[0004] To close the furniture, the foldable door is rolled out of the door compartment and unfolded. In the closed position, the door elements are aligned with each other in a plane. To open the furniture, the foldable door is folded again, whereby the door elements are driven into the open position, preferably aligned parallel to each other into the door compartment.

[0005] In the closed position, the foldable door must remain in a flat orientation so that the folding process does not start automatically. After opening the foldable door from the closed position, it would be ideal if the folding process were automatic.

[0006] DE202018100262U1 discloses a pressure-actuated holding device, which helps to keep a foldable door in a closed position and helps to fold the foldable door after the foldable door is released from the closed position. The device includes a first mating component connected to a first door element of the foldable door and a second mating component connected to a second door element of the foldable door. Between the coupling devices on the first mating component and the second mating component, an ejector element movably connected to the first mating component and the coupling device is provided. The adjustment of the first mating component relative to the coupling device is carried out via an accumulator, which is manually loaded by the user and acts on the ejector element. The release device is connected to the second door leaf via a connecting cable. The release of the locking device is achieved by applying pressure to the planar-aligned door element, which will push the door element further away from the planar alignment in the closing direction.

[0007] The device has a complex structure and requires a large number of device parts, of which a first set is to be connected to the first door element and a second set is to be connected to the second door element. Furthermore, the device parts are arranged to connect the two mating members and thereby the two door elements to each other, and wherein the first device part is mechanically guided, while the second device part is loosely held by a corresponding effort, which is generally not ideal. Furthermore, the door element of the foldable door is only held in the closed position by the holding device. Therefore, measures need to be taken to prevent accidental unlocking. Since two mating parts are used, it must also be ensured that they are connected to the first and second door elements at the correct distance from each other and in the correct mutual alignment and height. It should also be noted that such a device takes up a large amount of space, which is disadvantageous considering the limited space within the furniture, especially in the door compartment.

[0008] Furthermore, the retaining device is only suitable for foldable doors, so that for doors with only one door element, a different retaining device is required.

[0009] US2022372808A1 discloses an ejection device having two levers, which are pivotable relative to each other and can be locked relative to each other by a locking device.

[0010] US20180119470A1 discloses another pop-up device, which includes at least one pop-up element for opening a foldable door.

[0011] US20170247924A1 discloses a pop-up device for opening a foldable door. Summary of the invention

[0012] The invention is therefore based on the object of creating an improved holding device by means of which a door of a functional entity, a single door or a foldable door, optionally a foldable sliding door, can be held in a closed position.

[0013] Furthermore, an improved functional entity, in particular a piece of furniture, having at least one door element is to be created, which is equipped with at least one such holding device.

[0014] The holding device should be able to releasably hold the door of the functional unit, the single door or the foldable door (if applicable a foldable sliding door) in the closed position and release it again.

[0015] The holding device should be of simple design and comprise as few device parts as possible, so that the holding device can be produced and assembled with little effort and cost-effectiveness.

[0016] The holding device should also be realized with small dimensions so that it takes up only a small amount of space, the holding device being in the closed position when the single door is closed or when the door elements of the foldable door are aligned in one plane, and in the open position when the door elements of the foldable door are aligned parallel side by side. Thus, the available space for the user should be optimized, since the holding device does not protrude too far into the available space, and the door compartment of the door for holding can be realized with the smallest possible dimensions.

[0017] The holding device should be easy to install in the functional entity. Mutual alignment of the holder parts should be avoided or at least significantly simplified.

[0018] The holding device should reliably hold the door (possibly a foldable door) in the closed position without the need for additional measures and support the opening process (possibly a folding process) after the door has been released from the closed position.

[0019] This object is achieved by a holding device according to claim 1 and a functional entity, possibly a piece of furniture, which is equipped with at least one such holding device according to claim 12. Advantageous embodiments of the invention are defined in the further claims.

[0020] A retaining device is provided for retaining a pivotally mounted door element in a closed position and for releasing the door element from the closed position, comprising a locking unit having a force transmitter and a locking mechanism, the force transmitter having a connecting part, the locking mechanism being cyclically transferable between a locking position and a release position by applying pressure, in which the locking mechanism reaches a retaining position and the retaining device is connectable or connectable to the locking element; in a release position, the locking mechanism reaches a release position and the retaining device is detachable or detachable from the locking element.

[0021] According to the present invention,

[0022] - the locking element consists at least partially of a magnetic or ferromagnetic material;

[0023] - a mounting portion having a mounting body and a retaining lever having a lever body is provided;

[0024] - the mounting body is connectable to the door element and to the lever body via a lever joint;

[0025] the lever body comprises a front piece which holds at least one retaining magnet which is connected or connectable to the locking element in a non-positively locking manner in the retaining position; and

[0026] The coupling unit is provided with a one-piece or multi-piece coupling body which is pivotally connected on the one hand to the mounting body remote from the lever joint and on the other hand to the lever body and to the connecting portion of the locking unit.

[0027] The holding lever is preferably rotatable relative to the mounting part about the lever axis of the lever joint. In the process, the coupling body of the coupling unit, which is preferably plate-shaped, is rotated. By rotating the coupling body when the holding lever is actuated, force is transmitted from the coupling body to the connecting part of the force transmitter, and with each actuation of the holding lever, the locking unit is actuated cyclically and stepwise.

[0028] Preferably, at least one return spring is provided, which acts directly or indirectly on the force transmitter or 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 hand. Since the force transmitter, the coupling unit and the mounting part and the holding lever are connected together, the return spring can act on any of these parts to return the force transmitter or to rotate the mounting part and the holding lever relative to each other. The return spring can be arranged coaxially with the force transmitter, for example, it can be in the form of a spiral spring. The return spring can also surround the central axis with several coils and act together with the first end piece on the mounting part and the second end piece on the holding lever to rotate them apart. In a preferred embodiment, a first return spring acting on the force transmitter and / or a second return spring acting on the mounting part and the holding lever and preferably surrounding the central axis are provided.

[0029] Thus, the locking mechanism can be closed and opened cyclically, and the force transmitter supported by the return spring can be moved back and forth by the required amount. The locking mechanism is released by pushing the force transmitter past the rest position. Subsequently, the released force transmitter of the return spring pushes back and a torque is exerted on the holding lever via the coupling body, whereby the holding lever is released from the magnet and the separating element connected to the holding device can be returned from the closed position.

[0030] In a preferred embodiment, it is provided that the coupling body is connected to a lever axis held by the lever body and a mounting axis held by the mounting body, and that the coupling body is articulated to the connecting part of the locking unit via the lever axis, the mounting axis or the preferably provided coupling axis. Thus, the actuating force can be transmitted from the coupling body to the force transmitter in various ways. The lever axis and / or the mounting axis and / or the coupling axis are preferably aligned parallel to each other.

[0031] The force transmission between the mounting body and / or the lever body and / or the connecting part can be realized by any complementary connecting part or coupling part, such as a hook, a cam, a groove, etc. The connecting body itself is preferably composed of one piece, preferably composed of a plate, but can also be composed of two or more parts. For example, the connecting body forms a lever or a lever mechanism with a first lever part and a second lever part. For example, the first lever part is connected to the mounting shaft on one side and to the coupling shaft on the other side. For example, the second lever part is connected to the lever shaft on one side and to the coupling shaft on the other side. Therefore, the two lever parts preferably form an elbow joint, which acts on the force transmitter or the connecting part and pushes the force transmitter or the connecting part back when the lever is kept rotating against the mounting part. Therefore, it is sufficient if the coupling shaft or the part connected thereto acts on the connecting part of the force transmitter.

[0032] In particular, if the additional coupling shaft is omitted 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 in the lever body is held in the guide rail and is pivotally connected to the connecting portion of the locking unit, or the mounting shaft in the mounting body is held in the guide rail and is pivotally connected to the connecting portion of the locking unit. Therefore, the lever shaft or the mounting shaft held in the guide rail is preferably guided to cyclically operate the locking unit.

[0033] Advantageously, the holding device consists of only a few fastening parts and can therefore be manufactured inexpensively and assembled easily.

[0034] Advantageously, the holding device can be mounted on only one door element, possibly also on a door element of a foldable door or a foldable sliding door. Thus, it is not necessary to mount the device partially on the first and second door elements in order to correctly align and position them with each other and to connect them to each other. Furthermore, the mounting of the holding device itself on the associated door element is unimportant and can be achieved by simple measures. It only has to be ensured that the holding magnets of the holding device are able to interact with a fixed magnetic or ferromagnetic locking element in the closed position of the door, possibly a foldable door. Thus, the holding device is universally applicable and can also be retrofitted to already installed functional entities or furniture. Furthermore, the holding device can be arranged in a fixed position and connected, for example, to the body of the functional entity, while the locking element is connected to the door element.

[0035] Preferably, the locking unit is arranged inside the mounting part or inside the retaining lever and is preferably cylindrical. The force transmitter is preferably an actuating piston, which is preferably guided axially in a cylindrical housing. However, the force transmitter can also be rod-shaped or in another form.

[0036] Preferably, the mounting portion and the retaining lever can be inserted into each other so that the retaining device takes up only a small space in the closed position or storage position, in which the door elements of the foldable door are folded against each other, the space occupied being essentially determined by the size of the locking unit.

[0037] Preferably, the mounting body is at least partially U-shaped and comprises two side walls connected to each other by a central body piece, which define a receiving chamber in which the locking unit is completely or partially accommodated and retained in a force-fit or form-fit manner. Alternatively, the locking unit can also be arranged in the retaining lever.

[0038] When the locking unit is arranged in a U-profile-shaped mounting body and the coupling axis is avoided, each side wall preferably comprises a guide track so that the mounting axis is securely guided on both sides in two guide tracks that are opposite to each other and extend parallel to each other. When the locking unit is arranged inside a U-profile-shaped lever body and the coupling axis is avoided, each side member of the lever body preferably comprises a guide track so that the lever axis is securely guided on both sides in two guide tracks that are opposite to each other and extend parallel to each other. The mounting axis and / or the lever axis and / or the coupling axis are preferably held and / or guided on both sides.

[0039] One or more guide tracks comprise a straight or curved path. Preferably, the guide track comprises a V-shaped path with its end facing the coupling unit. This ensures that a larger force can be transmitted to the force transmitter during the closing process. Therefore, at least the track section of the guide track through which the mounting shaft or lever shaft passes at the beginning of the closing process is preferably inclined relative to the longitudinal axis of the mounting part. The inclination angle of the track section is preferably about 45°. The track section of the guide track through which the mounting shaft first passes during the opening process is preferably also inclined, so that a longer track length is obtained without taking up more space in the axial direction.

[0040] The length of the guide track is preferably selected so that, at least when applying the second pressure, the force transmitter can move beyond the locking position into a transition position. This allows the foldable door to be pushed past the rest position in the closing direction so that the retaining element engages or disengages with the anchor seat.

[0041] Preferably, the force transmitter is supported in the locking unit by a return spring, which offsets the pressure effect of the connecting body on the force transmitter and automatically moves the force transmitter back to the release position after the force transmitter is released from the locking position and transferred to the transition position, in which the lever is kept rotated out relative to the mounting part.

[0042] The counterforce for the mutual rotation of the mounting part and the retaining lever can also be applied by an external force source. In a preferred embodiment, another spring element can also act on the mounting part and the retaining lever. For example, a spring such as a spiral spring is arranged in the area of ​​the central axis and / or away from the central axis. In addition, a leaf spring can be arranged between the mounting part and the retaining lever.

[0043] The locking unit is preferably adjustable and comprises an adjustment member with an engagement element, which can be actuated by a tool, which can be inserted into the receiving chamber preferably through an adjustment channel provided in the mounting body. For example, with the aid of the tool, the reaching of the locking position or the transition position can be adjusted.

[0044] The connecting part is of simple or preferably U-profile shape with one or two connecting plates, each of which is provided with a connecting track, between which the part of the coupling body provided with the mounting axis or lever axis or coupling axis is held. Therefore, the mounting axis, lever axis or coupling axis is preferably guided on both sides by the connecting track in the connecting part and the guide track in the mounting body or lever body, so that no torsional forces act on the mounting axis, lever axis or coupling axis and the coupling unit. Therefore, the compressive forces acting on the retaining device can be transmitted to the locking unit without significant losses. Likewise, the locking unit can transmit the force back via the force transmitter with minimal losses during the opening process.

[0045] The one or more connecting rails give the mounting shaft or lever shaft the freedom to follow the one or more guide rails, even if they are not linear. Thus, when moving the force transmitter, a jamming of the mounting shaft, lever shaft or connecting shaft can always be avoided.

[0046] The lever body is preferably at least partially U-shaped and comprises two side walls connected to each other by a central body piece, the two side walls defining a lever cavity into which the mounting portion can be fully or partially inserted.

[0047] In a preferred embodiment, the lever body comprises a tool channel through which a tool portion can be introduced in order to actuate a mounting screw introduced through the mounting body. This enables an advantageous installation and removal of the holding device.

[0048] On the front piece facing away from the central axis, the lever body of the retaining lever preferably holds at least one spacing roller. For example, the front piece is fork-shaped and has a bearing axis passing through it, by which one or more spacing rollers are held. The spacing rollers ensure that after folding the foldable door, the front piece of the retaining lever does not collide with parts of the furniture in the closed position and with adjacent door elements in the storage position. The spacing rollers are preferably dimensioned such that the retaining magnet cannot contact the locking element.

[0049] In another preferred embodiment, the lever body comprises a magnet chamber into which the retaining magnet is sunk.

[0050] The magnet chamber is preferably adjacent to a through-opening through which a connecting screw passes, the connecting screw connecting the holding magnet to a threaded element, which is preferably supported on a supporting spring and holds the holding magnet axially displaceable or pivotable or axially displaceable and pivotable. The threaded element preferably comprises a threaded pin, which is held in the through-opening with play. Thus, even if the holding lever is not aligned parallel to the mounting portion and / or the locking element, the holding magnet can self-align and interact optimally with the magnetic or ferromagnetic locking element. Furthermore, in the closed position of the foldable door, the holding lever can still be rotated relative to the mounting portion by an angle of, for example, 1°-10°, which allows the foldable door to be pushed beyond the rest position and the holding device to be released from the holding position. Thus, the mounting axis or lever axis can be transferred from the locking position to a transition position, in which the mounting portion and the holding lever can now effectively align their longitudinal axes parallel to each other.

[0051] After releasing the retaining device from the locked position, the mounting shaft or lever shaft is moved back along one or more guide rails by the force of the spring, whereby the retaining lever is rotated away from the mounting part and in the process the retaining lever is also tilted relative to the locking element. The retaining magnet is thus lifted laterally and released from the locking element. As a result, the retaining magnet is not lifted head-on from the locking element (which requires considerable force), but is gradually separated by slow tilting (which requires almost no force). As a result, the retaining magnet can be reliably attached to the locking element in the closed position and can still be easily released from the locking element during the opening process.

[0052] The locking element is, for example, a ferromagnetic plate, such as a steel or iron plate. The holding magnet designed as a permanent magnet is preferably a rare earth magnet, for example composed of a ferrous metal (iron and / or cobalt and / or nickel) and a rare earth metal (in particular neodymium, samarium, praseodymium, dysprosium, terbium or gadolinium). In principle, the locking element can also be a permanent magnet.

[0053] The locking element can be an integral part of the functional entity (possibly a piece of furniture) or can be connected to a part of the functional entity at a suitable location, for example by screwing, gluing or plugging in with a form fit. For example, the functional entity comprises a ferromagnetic rail or a ferromagnetic cover with which the retaining magnet can interact magnetically.

[0054] Direct physical contact between the retaining magnet and the locking element is not necessary and is preferably avoided by covering the retaining magnet on the side facing the locking element with a protective layer (e.g. plastic) and / or covering the locking element on the side facing the retaining magnet, or providing spacing by other means. The retaining magnet and / or the locking element may also be recessed into adjacent parts, thereby excluding contact.

[0055] Preferably, the retaining magnet is held in a magnet cup, which is preferably made of plastic and which preferably protrudes slightly beyond the retaining magnet and comes into contact with the locking element when the door is in the closed position. By the impact of the preferably resiliently designed and / or resiliently mounted magnet cup on the locking element, knocks and disturbing noises are avoided. However, the magnetic coupling of the retaining magnet to the locking element still results in a stable connection, which holds the door securely in the closed position.

[0056] The lever body preferably comprises a magnet chamber in which the retaining magnet and preferably the magnet cup are retained. Thus, the retaining magnet can be completely recessed in the retaining lever or the front piece of the retaining lever without taking up additional space. The retaining magnet is preferably cylindrical and is retained in a magnet chamber of appropriate size.

[0057] Preferably, the connecting screw passes through a through-opening in the holding lever and is inserted into an elastic threaded element, 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 element preferably comprises a holding plate with a threaded pin, into which the connecting screw is screwed and which preferably passes through the through-opening to the magnet chamber. Due to the play of the threaded pin in the through-opening and the flexible mounting of the holding plate by means of a supporting spring, the threaded pin can be tilted to the side. By means of the connecting screw, the holding magnet can also be tilted to the side in order to automatically align itself optimally with the holding element. The preferably helical supporting spring is compressed accordingly.

[0058] A functional entity, a building unit lockable by at least one door or foldable door, or a piece of furniture lockable by at least one door or foldable door, generally comprises at least one door compartment in which a folded foldable door can be stored. The functional entity may comprise, for example, a door with only one door leaf and an associated first door compartment, and a foldable door with door elements that can be folded against each other and a second door compartment. The functional entity may also comprise two single doors or two foldable doors.

[0059] A foldable door comprises two door elements which are connected to each other by a foldable door hinge and can be turned against each other about a rotation axis. One of the door elements is connected to a holding device according to the invention so that a holding magnet in the closed position of the foldable door can cooperate with a fixedly held magnetic or ferromagnetic locking element which is firmly connected to a part of a functional entity or a structural element forming the functional entity.

[0060] The holding device is preferably mounted on the underside or on the upper side of one of the door elements and aligned parallel to the lower edge or upper edge of the associated door element, with the holding lever and the holding magnet facing the functional entity. If the locking element is mounted elsewhere, for example at half the height of the cabinet, for example on an intermediate shelf, the holding device can also be mounted at this height.

[0061] Preferably, at least one of the foldable door hinges is equipped with a hinge spring which turns hinge levers of the foldable door hinges connected to each other via the hinge axis against each other so that when the hinge levers are turned apart in the closed position of the foldable door, the hinge spring is tensioned. The foldable door hinge thus supports the folding process of the foldable door once the holding device is released from the closed position.

[0062] The hinge spring preferably comprises two spring groups, which are connected to each other via a spring center piece, which surround the hinge axis, and the spring end piece of each spring group rests on the first hinge lever, while the spring center piece rests on the second hinge lever. The spring assembly is preferably helical or spiral.

[0063] Preferably, at least one of the mounting hinges connected to the one-piece door or the foldable door is also equipped with a hinge spring.

[0064] Therefore, the opening process of the one-piece door or the folding process of the foldable door starting from the closed position is preferably supported by at least one mounting hinge and / or at least one foldable door hinge.

[0065] The functional entity, possibly a piece of furniture, can be of any design. Preferably, the door element is connected at one edge by a mounting hinge to a mounting profile which remains displaceable in a door compartment of the furniture and at the opposite edge by a foldable door hinge to possibly a second door element. The second door element is preferably connected at the edge remote from the foldable door hinge to a guide carriage which is guided in a guide rail extending along the front side of the furniture and by which the magnetic or ferromagnetic locking element is preferably held. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In the following, the present invention is explained in more detail with reference to the accompanying drawings. It is shown that:

[0067] Figure 1 In an embodiment of a piece of furniture, the functional entity 1 has a foldable door 11 comprising two door elements 111, 112, the foldable door is equipped with a holding device 2 according to the invention and the foldable door can be inserted into a first door compartment 10, the functional entity comprises a door 11 having 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;

[0068] Figure 2 Figure 1 a rear side of a foldable door 11 of a piece of furniture 1, the foldable door having a first door element 111 which is connected at a rear edge to a mounting profile 12 via a mounting hinge 13 and at a front edge to a second door element 112 via a foldable door hinge 3, on which a preferably designed retaining device 2 is mounted, the retaining device comprising a retaining magnet 282 which, in the closed position of the foldable door 11, cooperates with a magnetic or ferromagnetic locking element 20, which is held fixed by a part of the piece of furniture 1;

[0069] Figure 3 Figure 2 Exploded view of a holding device 2, the holding device comprising a mounting portion 21 having a mounting body 211, a holding lever 22 having a lever body 221, a central shaft 23 for connecting the mounting body 211 and the lever body 221, an arrangement having a holding magnet 282, a locking unit 24 and a coupling unit 25, the mounting body 211, the lever body 221 and the locking unit 24 being able to be coupled to each other via the coupling unit;

[0070] Figure 4 Figure 2 A portion of the foldable door 11 shortly before reaching the closed position or shortly after being released from the closed position;

[0071] Figure 5 Figure 4 A foldable door 11, wherein a first door element 111 is in cross-section and a second door element 112 is oriented parallel thereto, wherein the foldable door 11 can be inserted into an associated door compartment 10;

[0072] Figure 6a Figure 3 The lever body 221 is provided with a lever chamber 2210, wherein the mounting body 211 can be inserted into the lever chamber;

[0073] Figure 6b Figure 3 The lever body 221, in which the magnet chamber 2218 can be seen, Figure 3 The retaining magnet 282 is inserted into the magnet chamber;

[0074] Figure 6c Figure 3The mounting body 211, wherein the receiving chamber 2110 is visible, Figure 3 The locking unit 24 can be inserted into the receiving chamber;

[0075] Figure 6d Figure 3 The mounting body 211 can be connected to the Figure 1 One side of one of the door elements 111, 112;

[0076] Figure 7a Figure 3 The front side of the holding device 2, wherein the holding magnet 282 is released from the locking element 20 before reaching the closed position or after leaving the closed position;

[0077] Figure 7b In Figure 1 The closed position of the door 11 or the foldable door 11 Figure 7a a front side of the retaining device 2 in which the retaining magnet 282 is magnetically coupled to the locking element 20;

[0078] Figure 7c During overpressure Figure 7b The front side of the holding device 2 in the overpressure process, by which the holding device 2 is brought into the holding position or released from the holding position;

[0079] Figure 8 In Figure 7a A position retaining device 2 having a longitudinal section passing through the mounting body 211 and the lever body 221;

[0080] Figure 9a A holding device 2 in another preferred embodiment, wherein the holding magnet 282 is released from the locking element 20 before reaching the closed position or after leaving the closed position;

[0081] Figure 9b Figure 9a A holding device 2 having a longitudinal section through the mounting body 211 and the lever body 212, observing the locking unit 24 and the preferably designed coupling unit 25;

[0082] Fig.10a Figure 9a The holding device 2 is located Figure 1 a closed position of the door 11 or foldable door 11 , wherein the retaining magnet 282 is magnetically coupled to the locking element 20 ;

[0083] Fig.10b Fig.10a A retaining device 2 having a longitudinal section passing through the mounting body 211 and the lever body 212;

[0084] Fig.11a During overpressure Figure 9a The holding device 2 is brought into the holding position or released from the holding position by the overpressure process;

[0085] Fig.11b Fig.11a A retaining device 2 having a longitudinal section passing through the mounting body 211 and the lever body 212;

[0086] Fig.12 Figure 9a An exploded view of the holding device 2;

[0087] Fig.13a Figure 9a An exploded view of the holding device 2 as seen from the front side;

[0088] Fig.13b Figure 9a An exploded view of the holding device 2 as seen from the rear side;

[0089] Fig.13c Figure 9a A retaining device 2 having a longitudinal section passing through the mounting body 211 and the lever body 212;

[0090] Fig.14a In the preferred embodiment Figure 3 or Figure 9b A locking unit 24 and a connecting unit 25; and

[0091] Fig.14b Joint unit 25 in the embodiment of a knee joint. DETAILED DESCRIPTION

[0092] Figure 1 The functional entity 1 of the invention is shown in an embodiment of a piece of furniture 1 with a foldable door 11 equipped with the holding device 2 of the invention and insertable into a first door compartment 10, and with a one-piece door 11 equipped with the holding device 2 of the invention and insertable into a second door compartment 10. The piece of furniture 1 preferably comprises side walls 1A, an upper panel 1B, a lower panel 1C, an intermediate shelf 1E and partition walls 1D on both sides, which define the door compartments 10 together with the side walls 1A.

[0093] The foldable door 11 comprises a first door element 111, which is connected on one side by a mounting hinge 13 to a mounting profile 12 and on the other side by a foldable door hinge 3 to a second door element 112, the dimensions of which preferably correspond to the dimensions of the first door element 111. The foldable door 11 is slightly unfolded and can be completely folded and retracted into the door compartment 10, wherein the door elements 111, 112 are aligned parallel to each other, or completely unfolded and transferred to a closed position, in which the two door elements 111, 112 are at least approximately aligned in one plane. In order to hold the foldable door 11 in the closed position and to be able to easily release it from the closed position, one of the two door elements 111, 112 is provided with a retaining device 2 according to the invention, which in the closed position is opposite to the locking element 20. In the embodiment of the furniture 1 described below, the first door element 111 of the foldable door 11 is provided with the retaining device 2. The arrow indicates that when the door element 111 is turned, the holding device 2 of the foldable door 11 is guided against the locking element 20 and is magnetically held in the closed position of the foldable door 11 by the locking element 20. The second door element 112 is not connected to the holding device 2 or any part thereof, so that no assembly work or work to align the parts of the device with each other is required. On the other hand, the alignment of the holding device 2 relative to the locking element 20 can be carried out without any problems. The locking element 20, for example a magnetic or ferromagnetic plate (such as an iron or steel plate), can be easily connected to the furniture 1, for example by screwing or gluing. The locking element 20 can also be part of a structural element of the furniture 1.

[0094] Figure 1 It is shown that the holding device 2 is preferably arranged on the upper side of the door element 111. However, the holding device 2 can also be placed at another position of the door element 111. For example, the locking element 20 can also be installed on the intermediate floor 1E, and the holding device 2 is installed on the door element 111 at an appropriate height.

[0095] The use of the holding device 2 in conjunction with a foldable door 11 is particularly advantageous, since the holding device 2 is enclosed between the door elements 111, 112 and does not interfere. The holding device 2 can also be advantageously used on a one-piece door 11, whereby the holding device can advantageously be realized in small dimensions.

[0096] The holding device 2 of the invention can be used for any functional entity, possibly a piece of furniture comprising one or more doors which, in a preferred embodiment, can be stored in a door compartment.

[0097] exist Figure 1In the embodiment shown, each door 11 is connected by means of a mounting hinge 13 to a mounting profile 12, which is held in vertical alignment by means of a displacement device 9 and is displaceable in the associated door compartment 10. The door 11 is aligned parallel to the side wall 1A in front of the associated door compartment 10 and can subsequently be displaced into the door compartment 10. For displacement in the door compartment 10, the mounting profile 12 can also be provided with drive means. Preferably, the mounting profile 12 is connected at the upper side to a support carriage 5A, which is displaceable into the door compartment 10 along an associated support rail 15A. On the lower side, the mounting profile 12 can also be connected to a carriage guided in the support rail.

[0098] In this preferred embodiment, the front edge of the second partition element 112 of the foldable door 11 is connected to a guide carriage 5B, which is also guided by a guide rail 15B, which extends along the front side of the furniture 1 and along a curve into the door compartment 10. The foldable door 11 is thus held at the front side by the guide carriage 5B, which is displaceable along the front side of the furniture 1 in the unfolded state of the foldable door 11 and is displaceable into the door compartment 10 in the folded state of the foldable door 11. The guide carriage 5B always runs ahead of the second partition element 112 in the direction of movement.

[0099] Figure 2 The first door element 111 is shown Figure 1 1 , the first door element is connected at the rear edge via a mounting hinge 13 to a mounting profile 12 and at the front edge via a foldable door hinge 3 to a second door element 112, at the front side of which a guide carriage 5B is mounted. The guide carriage 5B comprises a support roller 51 which can roll on a support element 151 of the guide rail 15B, and a guide roller 52 which is guided in a guide channel 152 of the guide rail 15B. It is shown that the guide rail 15B extends along the front side of the furniture 1 and extends around a curve into the door compartment 10 of the furniture 1. In order for the guide carriage 5B to follow the curve, it is connected to the second door element 112 via parts 53, 54 of a drive body which are pivotally connected to each other.

[0100] The mounting profile 12 is connected at the upper end to a support carriage 5A which can be moved into the door compartment 10 along a support rail 15A. Figure 2 In the embodiment, the support carriage 5A is guided to the stop device 7 on the front side of the door compartment 10. In this position, Figure 1 As also shown in FIG. 1 , the foldable door 11 is fully extended from the door compartment 10 and can be unfolded to close the furniture opening 100 (see FIG. 1 ). Figure 1 ).exist Figure 2In the embodiment, the foldable door 11 has almost reached the closed position and can be brought into the closed position by manually applying pressure on the foldable door 11, preferably on the front edge 111, wherein the retaining device 2 mounted on the rear side of the partition element 111 can interact magnetically with the locking element 20 connected to the front side of the guide rail 15B.

[0101] The holding device 2 comprises a mounting portion 21 which is preferably connected to the first door element 111 by screws and to a holding lever 22 via a central axis 23. At the front end 2219, the holding lever 22 is provided with a holding magnet 282 and optionally with two spacing rollers 229.

[0102] The optional spacing roller 229 can roll on the locking element 20 and / or the guide rail 15B during the closing process and hold the lever body 221 of the lever 22 (see Figure 6b ) will not contact the locking element 20 or the guide rail 15B. Rotate the holding lever 22 and keep the magnet 282 aligned almost head-on against the locking element 20 so that it can be magnetically coupled to the magnetic or ferromagnetic locking element 20.

[0103] It is described below that the holding device 2 includes a force transmitter 241 (see for example Figure 3 and Figure 9b ), the force transmitter is cyclically displaceable between a locking position p1 and a release position p2 in the locking unit 24 by the action of pressure, in which the holding device 2 reaches the holding position, and in which the holding device 2 reaches the release position. Therefore, by applying a first manual pressure to the door element 111 and then to the holding device 2, the holding device 2 can be coupled and locked with the locking element 20 in the closed position, and by applying a second manual pressure to the door element 111 and then to the holding device 2, the holding device 2 can be unlocked and released from the locking element 20 again.

[0104] After release from the closed position, the two door elements 111, 112 are preferably folded automatically. This folding process is preferably supported by a foldable door hinge 3, which connects the two door elements 111, 112 to each other and is equipped with a hinge spring 34, which comprises two spring assemblies 341, 342, which are connected to each other via a spring centerpiece. The hinge spring 34 acts on two hinge levers 31, 32, which are connected to each other via a hinge axis 33 on the one hand and are each connected to a hinge cup 39 on the other hand.

[0105] Figure 2Also shown is a spacing plate 200, which is inactive in the closed position of the foldable door 11. On the other hand, in the folded position of the foldable door 11, in which the door elements 111, 112 are aligned parallel, the front piece 2219 with the spacing rollers 229 abuts against the spacing plate 200 and presses against the mounting portion 21 and is preferably aligned parallel thereto so that it takes up as little space as possible when pushed into the door compartment 10. This leaves room for the displacement device 9, by which the mounting profile 12 can be displaceably kept in vertical alignment (see Figure 5 ).

[0106] Figure 3 The preferred embodiment is shown Figure 2 Exploded view of the holding device 2 of the present invention. The holding device 2 includes a mounting portion 21 having a mounting body 211, a holding lever 22 having a lever body 221, a central shaft 23 for connecting the mounting body 211 and the lever body 221, an arrangement having a holding magnet 282, a locking unit 24, and a coupling unit 25, and the mounting body 211, the lever body 221, and the locking unit 24 can be coupled to each other through the coupling unit 25.

[0107] The central shaft 23 designed in one piece or in multiple pieces forms a lever joint, which forms a first articulated connection between the mounting part 21 and the retaining lever 22. The central shaft 23 or a corresponding part of the central shaft 23 can also be formed on the mounting body 211 or the lever body 212.

[0108] In a preferred embodiment, the mounting body 211 and the lever body 221 each include a coupling member 2111, 2211 having a bearing hole through which the support shaft 23 can pass. In the figure, the support shaft 23 is inserted into the mounting body 211. Therefore, the holding lever 22 can rotate relative to the mounting portion 21 around the mounted support shaft 23.

[0109] The coupling unit 25 includes 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 each other. The coupling unit 25 is shown twice. Once, the coupling unit 25 or the mounting shaft 251 is shown to be connected to the mounting body 211, and once, it is shown to be connected to the locking unit 24. However, only one coupling unit 25 is used.

[0110] The mounting body 211 comprises a connection plate 2119 which has through holes at both ends, through which mounting screws can pass, in order to connect the mounting body 211 to the door element 111. If the mounting body 211 is to be connected to a door element of a different design, such as a glass panel, other connection means are provided. For example, the mounting body 211 can also be connected to the door element 111 by adhesive or form fit.

[0111] The mounting body 211 is partially U-shaped and comprises two side members 2116 connected to each other by a central body member 2117, which define a receiving chamber 2110 in which the locking unit 24 can be retained in a force-fit and / or form-fit manner. Each side member 2116 comprises a mounting shaft support in the form of a guide track 2112. The mounting shaft 251 of the coupling unit 25 passes through the parallel guide tracks 2112. The mounting shaft 251 is displaceably mounted in the track-shaped mounting shaft support 2112.

[0112] The locking unit 24 includes a force transmitter 241 movably mounted in a housing 242 of the locking unit 24 and supported by a return spring 248, which resists the application of pressure and pushes the force transmitter 241 back. The force transmitter 241 is also connected to a locking mechanism 249, which switches cyclically between a locked position and a released position when continuous pressure is applied to the force transmitter 241. Fig.14a The locking mechanism 249 is explained in more detail as an example. Devices with locking mechanisms are available on the market. Therefore, any device with a locking mechanism can be integrated into the holding device 2. An adjustment member 245 is provided on the back of the housing 242, through which the locking mechanism 249 can be positioned so as to accurately adjust the locking position. In order to operate the adjustment member 245, an adjustment channel 2114 is provided in the mounting body 211, through which a tool such as a screwdriver can be inserted (see FIG. 214 ). Figure 8 ).

[0113] For example, the force transmitter 241 is a cylindrical piston slidably mounted in a hollow cylindrical housing 242. A housing collar 243 is provided on the front of the housing 242, which can be inserted into a retaining groove 2113 provided in a receiving chamber 2110 of the mounting body 211. The retaining groove 2113 retains the locking unit 24 axially immovable in the receiving chamber 2110.

[0114] The force transmitter 241 comprises at the front a fork-shaped connecting portion 246, which comprises a connecting track 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 track 2460 of the connecting portion 246 and the track-shaped mounting shaft support or guide track 2112 of the mounting body 211. On the other hand, the lever shaft 252 of the coupling unit 25 is rotatably but immovably held in the support opening or lever shaft support 2212 of the lever body 221.

[0115] exist Figure 321, the mounting shaft 251 is held at the front end of the guide rail 2112. The force transmitter 241 is thus shifted forward as far as possible. If the holding lever 22 is now rotated around the support shaft 23 against the mounting portion 21, the lever shaft 252 with the coupling body 253 moves downward. As a result, the mounting shaft 251 moves along the guide rail 2112, and the force transmitter 241 is pushed into the housing 242 of the locking unit 24.

[0116] The guide rail 2112 is curved. Therefore, the mounting shaft 251 does not move parallel to the longitudinal axis of the mounting body 211, but moves perpendicular to the longitudinal axis. In order to allow the mounting shaft 251 to move perpendicular to the longitudinal axis of the mounting body 211, the connecting rail 2460 is provided in the connecting portion 246 connected to the force transmitter 241.

[0117] Guide track 2112 from Figure 3 The position of the mounting shaft 251 is kept inclined, allowing the force required to actuate the locking unit to be adjusted. The steeper the curve, the easier it is to move the mounting shaft 251 downwards, with a corresponding reduction in the axial movement of the force transmitter 241. Due to the curvature of the guide rails 2112 on the other side, the guide rails 2112 can be extended without extending them by a corresponding length in the axial direction and without requiring a corresponding extension of the mounting body 211.

[0118] The lever body 221 comprises on the upper side a collar opening 2213 into which the housing collar 243 of the housing 242 can enter. In addition, a tool channel 2214 is provided through which a tool, such as a screwdriver, can be guided to the connecting plate 2119 of the mounting body 211 .

[0119] The lever body 221 also includes a magnet chamber 2218 for accommodating a retaining magnet 282, a magnet cup 283 and a damping disk 284. It is shown that the retaining magnet 282 is inserted into the magnet cup 283, supported on the damping disk 284 together with the magnet cup 283, and is penetrated by a connecting screw 281, which is guided through a support spring 285 on the other side of the lever body 221 and is screwed into a threaded pin 2861 of a threaded element 286. The threaded pin 2861 includes a retaining element 2863 that retains the support spring 285. The threaded pin 2861 is connected to a retaining plate 2862, which is inserted into a retaining chamber 2215 in the lever body 221 together with the support spring 285 (see Figure 6a and Figure 6b ).

[0120] Thus, the retaining plate 2862 is supported by the support spring 285 and can be tilted laterally together with the retaining magnet 282. The threaded pin 2861 preferably protrudes with sufficient clearance into the through opening 22180 that connects the magnet chamber 2218 to the retaining chamber 2215. Thus, the retaining magnet 282 can be self-aligned relative to the contact plate 20 and optimally magnetically coupled to the contact plate 20, as described below with reference to Figure 7b The damping disk 284 made of, for example, silicone prevents noise from being generated during the operation of coupling or separating the holding magnet 282 to or from the locking element 20 .

[0121] The fork-shaped front piece 2219 of the holding lever 22 is penetrated by a bearing shaft 2291 which holds two spacing rollers 229. The spacing rollers 229 prevent the lever body 221 from hitting the locking element 20, the cabinet part or the adjacent partition element 112.

[0122] Figure 4 Shows Figure 2 A portion of the foldable door 11 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 foldable door 11 are not yet aligned in one plane and the magnet 282 is not yet in contact with the locking element 20. The holding lever 22 is tilted relative to the mounting portion 21 and faces the locking element 20 and will first contact it with the spacing roller 229 provided on the front piece 2219. The spacing roller 229, which is preferably made of plastic, hardly generates any noise.

[0123] The retaining magnet 282 is recessed into the magnet chamber 2218 and is partially surrounded by the magnet cup 283 and protrudes at the front side by, for example, 0.2 mm-2 mm, so that the retaining magnet 282 cannot hit the locking element 20 .

[0124] The locking unit 24 is schematically shown with a force transmitter 241. The force transmitter 241 supported by a return spring 248 is axially displaceable and actuates a locking mechanism 249 by displacement between a first displacement position a1, a second displacement position a2 and a third displacement position a3 (see FIG. Fig.14a ). Refer to the following Fig.14a The function of the locking mechanism 249 is explained.

[0125] The hinge spring 34 is tensioned in this position of the foldable door 11 and the foldable door hinge 3 and acts to resist the force of the user in order to fold the door elements 111, 112 against each other. Therefore, the holding device 2 must be magnetically coupled to the locking element 20 in the closed position and locked by the locking unit 24 so that the foldable door 11 is held in the closed position. The hinge spring 34 is thus loaded by the manual force and then serves to automatically fold the foldable door 11 once released from the closed position.

[0126] Figure 5 Show Figure 4 A foldable door 11, wherein the first door element 111 in cross-section is separated from the foldable door hinge 3 and the second door element 112 is aligned parallel, wherein the foldable door 11 can be inserted into the associated door compartment 10. The front piece 2219 of the holding lever 22 abuts the spacing plate 200 with the spacing roller 229 and holds the holding lever 22 at least approximately aligned parallel to the mounting portion 21. Therefore, the holding device 2 also takes up little space inside the door compartment 10.

[0127] The hinge levers 31, 32 of the foldable door hinge 3, which are connected to each other via the hinge axis 33, have been rotated relative to each other. Therefore, the hinge spring 34 has no or largely no tension.

[0128] Figure 6a and Figure 6b The lever body 221 of the holding lever 22 is shown. Figure 6c and Figure 6d The mounting body 211 of the mounting portion 21 is shown, which has been referred to as Figure 3 The lever body 221 and the mounting body 211 are further described below.

[0129] Figure 6a The underside of the lever body 211 is shown facing the mounting portion 21, which is partially U-shaped and includes two side walls 2216 interconnected by a central body piece 2217, which define a lever chamber 2210, into which the mounting portion 21 can be fully or partially inserted. Also shown are two bearing blocks of the lever shaft bearing 2212, a tool channel 2214 and a retaining chamber 2215, which preferably completely accommodates Figure 3 Support spring 285 and threaded element 286.

[0130] Figure 6b Show Figure 3 The lever body 221, its observation magnet chamber 2218, Figure 3 The retaining magnet 282 is inserted into the magnet chamber. The retaining magnet 282 and the magnet cup 283 are shown in a cross-sectional view, which shows Figure 3 The threaded pin 2861 of the threaded element 286 of the magnet chamber 2218 passes through the through opening 22180 and is flush with the magnet chamber 2218, and the connecting screw 281 is screwed into the threaded pin. The threaded element 286 is supported by the support spring 285 (see Figure 8 ), which causes the retaining magnet 282 to be lifted and rotated out of the magnet chamber 2218 by force. Once the retaining magnet 282 is released from the locking element 20, it is pulled back by the support spring 285 against the damping element or damping disc 284, which mitigates the impact noise.

[0131] Figure 6c Show Figure 3 The mounting body 211 is at least partially U-shaped and comprises two side members 2116 connected to each other by a central body member 2117, the two side members defining a receiving chamber 2110 in which the locking unit 24 is positively retained by a retaining groove 2113. A guide rail 2112 is provided in each of the side members 2116 that are opposite to each other.

[0132] Figure 6d Show Figure 3 Installation body 211, observe the connection or screw in Figure 1 One side of one of the door elements 111 , 112 .

[0133] Figure 7a Show Figure 3 The front side of the retaining device 2, wherein the retaining magnet 282 is released from the locking element 20 before reaching the closed position or after leaving the closed position. The retaining lever 22 is rotated outward as far as possible and contacts the locking element or the contact plate 20 via the spacing roller 229 retained on the front piece 2219 of the lever body 221. If the mounting part 21 is further guided against the locking element 20, the retaining magnet 282 can be magnetically coupled to the locking element 20, but does not contact the locking element, so that there is no perceptible impact noise. The front piece of the mounting body 211 is cut away to show the connecting track 2460 through which the mounting shaft 251 passes through the connecting piece 246 and the guide tracks 2112 of the mounting body 211 on both sides. In this position of the retaining device 2, the mounting shaft 251 is retained at the first end 21121 of the guide track 2112 (see Figure 7b ). The force transmitter 241 is Figure 7a Located in Figure 4 The third displacement position a3.

[0134] Figure 7b Show Figure 7a The retaining device 2 in Figure 1 The door 11 or foldable door 11 is in the front side of the closed position. In this position, the locking unit 24 is locked and the mounting shaft 251 remains close to the second end 21122 of the guide rail 2112. The holding lever 22 is still slightly rotated relative to the mounting part 21, so that the holding magnet 282 magnetically coupled to the locking element 20 has been swung out by compressing the support spring 285 (see Figure 3 ). It should be noted that the retaining device 2 is not directly from Figure 7a Arrival at location Figure 7b The location shown is only accessible via Figure 7c Similarly, you cannot Figure 7b Directly reach the location Figure 7a location, but can only be reached via Figure 7c The force transmitter 241 is located at Figure 7b Located in Figure 4 The first displacement position a1.

[0135] Figure 7c Shown during overpressure Figure 7b The front side of the holding device 2 in the holding position is brought into the holding position or released from the holding position by the overpressure process. In this position, the mounting shaft 251 is guided to the end 21122 of the guide rail 2112, and the force transmitter 241 moves to Figure 4 From this position, the holding device 2 can be moved back to the second displacement position a2. Figure 7b Hold position or Figure 7a During the transfer to the release position, the holding lever 22 is not lifted forward but laterally. Therefore, the holding magnet 282 can be released from the locking element 20 with a reduced force.

[0136] Figure 8 Shown in Figure 7a The holding device 2 in position has a longitudinal section through the mounting body 211 and the lever body 221, which are pivotally connected to each other at the rear by the lever joint 23 or the central axis 23 and at the front by the coupling unit 25. The mounting body 211 includes an adjustment channel 2114, through which a screwdriver can be axially inserted to turn the adjustment member 245 of the locking unit 24. The lever body 221 includes a tool channel 2214, through which a screwdriver is inserted, with the help of which a mounting screw 21191 guided through the stop portion 2119 of the mounting body 211 can be tightly screwed into the associated door element.

[0137] Also shown are the retaining magnet 282 and the threaded element 286, which are connected to each other by the connecting screw 281. The threaded element 286 located inside the retaining chamber 2215 is pushed upward by the helical support spring 285, which pulls the retaining magnet 282 and the magnet cup 283 against the damping disk 284. When the retaining magnet 282 is in magnetic contact with the locking element 20, the threaded element 286 is pulled further into the retaining chamber 2215, and the retaining magnet 282 is slightly pulled out of the magnet chamber 2218 and rotated against the locking element 20. The retaining magnet 282 can thus be fully coupled to the locking element 20 in the retaining position of the retaining device 2, without the retaining lever 22 being aligned parallel to the locking element 20 (see Figure 7b ).

[0138] Therefore, the rotation of the holding lever 22 about the rod joint 23 relative to the mounting body 21 rotates the coupling body 253, and the force is transmitted to the force transmitter 241 via the coupling body through the mounting shaft 251. In this process, the mounting shaft 251 moves along the guide track 2112. In the preferred embodiment of the holding device 2 described below, the force is transmitted from the coupling body 253 to the force transmitter 241 via the coupling shaft 250.

[0139] Figure 9a A further preferred embodiment of the holding device 2 is shown, in which the holding magnet 282 is released from the locking element 20 before reaching the closed position or after leaving the closed position.

[0140] Figure 9a The holding device 2 and Figure 8 The holding devices 2 of FIG. 2 differ primarily in the manner in which the forces are transmitted from the coupling unit 25 to the locking unit 24 .

[0141] Furthermore, in the preferred embodiment, a lever joint 23 is shown, which is arranged to be displaced toward the front side of the mounting body 211 and through which the mounting body 211 and the lever body 212 are hinged to each other.

[0142] The holding lever 22 is preferably equipped with two holding magnets 282, which are preferably elastically mounted or supported by springs, for example, as shown in FIG. Figure 8 The holding lever 22 may also include only one holding magnet 282 .

[0143] Figure 9b Show Figure 9a 2, which has a longitudinal section through the mounting body 211 and the lever body 212, viewing the locking unit 24 and the preferably designed coupling unit 25. In this embodiment, the coupling body 253 of the coupling unit 25 additionally holds a coupling shaft, which engages with the connecting track 2460 of the connecting part 246 of the force transmitter 241. The force transmitter 241 is extended, and the plate-shaped coupling body 253 is rotated clockwise by the holding lever 22, thereby guiding the coupling shaft 250 forward.

[0144] Fig.10a Shown in Figure 1 The closed position of the middle door 11 or the foldable door 11 Figure 9a A retaining device 2 in which the retaining magnet 282 is magnetically coupled to the locking element 20.

[0145] Fig.10b Show Fig.10a The holding device 2 has a longitudinal section passing through the mounting body 211 and the lever body 212. By rotating the holding lever 22, the coupling body 253 has been rotated counterclockwise, and the force transmitter 241 has been almost completely pushed into the locking unit 24.

[0146] Fig.11a Shows the overpressure during the process Figure 9a The holding device 2 is brought into the holding position or released from the holding position by the overpressure process.

[0147] Fig.11b Show Fig.11a The holding device 2 has a longitudinal section through the mounting body 211 and the lever body 212. The holding lever 22 has been pushed further downwards and the coupling body 253 has been further rotated counterclockwise. As a result, the force transmitter 241 is fully inserted into the locking unit 24 and the locking mechanism 249 is pressed through and released from the holding position or engaged in the holding position.

[0148] Fig.12 Show Figure 9a Exploded view of the holding device 2. The coupling member 2211 of the holding lever 22 is fork-shaped and comprises two inwardly directed lever shafts 23 or lever shaft segments 23, which can be inserted into the support opening 21110 via the mounting rails 21111. The lever shaft segment 23 comprises a flat portion that allows insertion into the support opening 21110 via the L-shaped mounting rails 21111, the lever shaft segment 23 then being rotated and rotatably held in the support opening.

[0149] Fig.13a Show Figure 9a Exploded view of the holding device 2 as seen from the front side. Symbolically, the dotted line L12 shows that the lever shaft section 23 of the holding lever 22 corresponds to the bearing opening 21110 of the mounting body 21. The line L51 shows that the mounting shaft 251 is held in the mounting body 21. The line L25 shows that the lever shaft 252 is held in the lever body 221. The line L45 shows that the coupling shaft 250 is held in the connecting portion 246 of the locking unit 24.

[0150] Fig.13b Show Figure 9a Exploded view of the holding device 2 from the rear side. Optionally, a second return spring 248' is provided which, in all embodiments 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 once the locking device 24 is released. For example, the spring turns of the return spring 248' surround the central axis 23, while the end pieces of the return spring 248' rest on the mounting body 211 and the lever body 221.

[0151] Fig.13c Shown from the side Figure 9aA retaining device 2 having a longitudinal section passing through the mounting body 211 and the lever body 212. The corresponding elements of the articulation system are indicated by arrows. The mounting shaft support 2112 includes two opposing support sleeves in which the mounting shaft 251 is retained. On the other hand, the lever shaft support 2212 in which the lever shaft 252 is retained is designed in the shape of a track. On the other hand, the coupling shaft 250 is displaceably retained in the connecting track 2460 of the connecting portion 246. Embodiments of the lever shaft support 2212 and the connecting track 2460 allow the lever shaft 252 and the coupling shaft 250 to move lateraly during the rotation of the coupling body 253. Therefore, the guide track can be used as needed to allow the coupling unit 25 to rotate freely.

[0152] Furthermore, a return spring 248 is shown, which acts on the force transmitter 241. Thus, a Fig.13b The return spring 248' and / or Fig.13c The return spring 248 or the return springs 248, 248' may also be present in other embodiments.

[0153] Fig.14a Show Figure 3 or Figure 9a 24, which has a force transmitter 241 which is held in a cylindrical housing 242, supported on a return spring 248 and connected to a circulation lever 2411 via a lever joint 2410. The circulation lever 2411 has a front piece which projects into a circulation mechanism 249 which includes a circulation channel 2490 surrounding a core element 2491. During the axial displacement of the force transmitter 241 between the first displacement position a1, the second displacement position a2 and the third displacement position a3 (see Figure 4 ), the front part of the circulation lever 2411 is guided clockwise in a cycle around the core element 2491 in the circulation channel 2490. The circulation lever 2411 is transferred from the release position p2 to the first transition position p31 by pressing the holding device 2. In the release position, the holding device 2 presents Figure 7a or Figure 9a In the first transition position, the holding device 2 presents Figure 7c or Fig.11a When the pressure is removed from the retaining device 2, the circulating lever 2411 moves to the locking position p1, wherein the circulating lever 2411 is retained by the core element 2491 and the retaining device 2 presents Figure 7b or Fig.10a Once pressure is applied to the retaining device, the circulating lever 2411 moves from the locking position p1 to the second transition position p32, in which the retaining device 2 presents Figure 7c or Fig.11aThe force transmitter 241 can thus be moved to the locking position p1 by a first overpressure and returned to the release position p2 by a second overpressure.

[0154] Fig.14a Also shown is the coupling unit 25, which is connected to the connecting portion 246 of the force transmitter 241 via the mounting shaft 251, also as shown in FIG. Figure 8 The mounting shaft 251 thus fulfils a dual function, since it is articulated to the connecting part 246 on the one hand and to the mounting body 211 on the other hand. The dashed line shows the preferably arranged coupling shaft 250, which can preferably be coupled to the connecting part 246 instead of the mounting shaft 251.

[0155] Fig.14b A coupling unit 25 in the form of a knee joint embodiment is shown with a coupling body 253 comprising two coupling levers 2531, 2532 which are connected to one another via a coupling shaft 250 which is arranged to act on a force transmitter 241. The lever shaft 252 is in turn hinged to the lever body 221 and the mounting shaft 251 is hinged to the mounting body 211. When the lever shaft 252 and the mounting shaft 251 are actuated, the coupling shaft 250 is deflected and the force transmitter 241 is actuated.

[0156] Reference numerals list:

[0157] 1- Functional entities, furniture, such as wardrobes;

[0158] 1A-side wall;

[0159] 1B-upper plate;

[0160] 1C-lower plate;

[0161] 1D-dividing wall;

[0162] 10- First or second door compartment or storage space;

[0163] 100- the interior of functional entity 1;

[0164] 111 - first door element;

[0165] 112 - second door element;

[0166] 11-Doors or folding doors;

[0167] 12-Installation profile;

[0168] 13-Install the hinge;

[0169] 15A - support rail for supporting carriage 5A;

[0170] 15B - guide rail for guide carriage 5B;

[0171] 151- supporting element;

[0172] 152-Guide channel;

[0173] 2- Holding device;

[0174] 20 - magnetic or ferromagnetic locking element;

[0175] 200-partition board;

[0176] 21- Installation part;

[0177] 211-install the body;

[0178] 2110-Receiving room;

[0179] 2111-Connecting member;

[0180] 21110-support opening;

[0181] 21111-Installation track;

[0182] 2112-Install shaft bearings and guide rails;

[0183] 21121 - first end of guide track 2112;

[0184] 21122 - the second end of the guide rail 2112;

[0185] 2113-Retention slot;

[0186] 2114-Adjustment channel;

[0187] 2115-Chamber extension;

[0188] 2116 - side member;

[0189] 2117-Central body member;

[0190] 2119-connection plate;

[0191] 21191-Mounting screws;

[0192] 22-Maintain leverage;

[0193] 221-lever body;

[0194] 2210-Lever room;

[0195] 2211-Connecting member;

[0196] 2212-Lever shaft support, guide rail;

[0197] 2213-shaft collar opening;

[0198] 2214-Tool channel;

[0199] 2215 - Holding room;

[0200] 2216-side wall;

[0201] 2217-Center body;

[0202] 2218-Magnet room;

[0203] 22180-through opening;

[0204] 2219-previous part;

[0205] 22190-Support opening;

[0206] 229-spacer roller;

[0207] 2291-support shaft;

[0208] 23-lever joint, center axis;

[0209] 24-locking unit;

[0210] 241-force transmitter;

[0211] 2410-Lever joint;

[0212] 2411-Circular Lever;

[0213] 242-housing;

[0214] 243 - housing collar;

[0215] 245-adjusting member;

[0216] 2450 - Engagement element;

[0217] 246-connection part;

[0218] 2460-Connection track;

[0219] 2461-connection plate;

[0220] 248-return spring;

[0221] 249-locking mechanism;

[0222] 2490-circulation channel;

[0223] 2491-core element;

[0224] 25-connection unit;

[0225] 250-connecting shaft;

[0226] 251-install the shaft;

[0227] 252-lever shaft;

[0228] 253 - coupling body, one-piece or multi-piece;

[0229] 2531-first lever part;

[0230] 2532-second lever part;

[0231] 281-connecting screw;

[0232] 282-holding magnet;

[0233] 283-Magnetic cup;

[0234] 284-damping disc;

[0235] 285-support spring;

[0236] 286-threaded element;

[0237] 2861-threaded pin;

[0238] 2862-holding plate;

[0239] 2863-Retaining element;

[0240] 3- Foldable door hinges;

[0241] 31- first hinge lever;

[0242] 32 - second hinge lever;

[0243] 33-hinge axis;

[0244] 34-hinge spring;

[0245] 341-first spring group;

[0246] 342-second spring group;

[0247] 343-spring center piece;

[0248] 39 - mounting part, hinge cup;

[0249] 5A-support slide;

[0250] 5B-guide carriage;

[0251] 51-support roller;

[0252] 52-guide roller;

[0253] 53-first carriage body portion;

[0254] 54-second carriage body portion;

[0255] 9- shifting device;

[0256] a1-first displacement position;

[0257] a2 - second displacement position;

[0258] a3 - third displacement position;

[0259] p1 - ​​locked position;

[0260] p2 - release position;

[0261] p31 - first transition position;

[0262] p32 - second transition position;

[0263] x - axis of rotation;

[0264] y - lever axis.

Claims

1. A holding device (2) for holding a pivotally mounted door element (111) in a closed position and for releasing the door element (111) from the closed position, A locking unit (24) is provided, the locking unit comprising a force transmitter (241) having a connecting portion (246) and a locking mechanism (249), the locking mechanism (249) being cyclically transferable between a locking position (p1) and a release position (p2) by applying pressure; in the locking position (p1), the locking mechanism (249) reaches a holding position and the holding device (2) is connectable or connected to the locking element (20); in the release position (p2), the locking mechanism (249) reaches a release position (p2) and the holding device (2) is detachable or detachable from the locking element (20), wherein: The locking element (20) is at least partially made of magnetic or ferromagnetic material; A mounting portion (21) having a mounting body (211) and a retaining lever (22) having a lever body (221) are provided; The mounting body (211) is connectable to the door element (111) and is connected to the lever body (221) via the lever joint (23); The lever body (221) comprises a front piece (2219) which holds at least one retaining magnet (282) which is connected or connectable to the locking element (20) in a force-locking manner in a retaining position; and The connecting unit (25) is provided with a single-piece or multi-piece connecting body (253), which is pivotally connected to the mounting body (211) away from the lever joint (23) on the one hand, and is pivotally connected to the lever body (221) on the other hand, and is pivotally connected to the connecting part (246) of the locking unit (24).

2. The holding device (2) according to claim 1, wherein: The connecting body (253) is connected to a lever shaft (252) held by the lever body (212) and to a mounting shaft (251) held by the mounting body (211), and the connecting body (253) is pivotally connected to a connecting portion (246) of the locking unit (24) via the lever shaft (252), via the mounting shaft (251) or via the connecting shaft (250).

3. The holding device (2) according to claim 2, wherein: The lever shaft (252) is held in a guide track in the lever body (212) and is pivotally connected to a connecting portion (246) of the locking unit (24); or The mounting shaft (251) is held in a guide rail (2112) in the mounting body (211) and is pivotally connected to a connecting portion (246) of the locking unit (24).

4. The holding device (2) according to claim 1, 2 or 3, wherein: The connecting unit (25) includes a connecting body (253) having a first lever part (2531) and a second lever part (2532) and a connecting shaft (250), wherein the connecting shaft (250) directly or indirectly cooperates with the connecting part (246) of the force transmitter (241), and the connecting shaft is pivotally connected to the mounting body (211) through the first lever part (2531) and the mounting shaft (251) on the one hand, and is pivotally connected to the retaining body (221) through the second lever part (2532) and the lever shaft (252) on the other hand.

5. The holding device (2) according to any one of claims 1 to 4, wherein: The mounting body (211) comprises a receiving chamber (2110), in which the locking unit (24) is held in a force-fitting or form-fitting manner; or The lever body (212) includes a lever chamber (2210), in which the locking unit (24) is held in a force-fit or form-fit manner; and The mounting body (211) and the lever body (212) are preferably insertable into each other.

6. The holding device (2) according to any one of claims 1 to 5, wherein: A return spring (248) is provided, which acts directly or indirectly on the force transmitter (241) or the coupling unit and automatically returns the locking unit (24) from the holding position to the releasing position.

7. The holding device (2) according to any one of claims 1 to 6, wherein: The connecting portion (246) includes at least one connecting plate (2461), the connecting plate is provided with a connecting track (2460), and the lever shaft (252), the mounting shaft (251) or the connecting shaft (250) is slidably retained in the connecting track.

8. The holding device (2) according to any one of claims 1 to 7, wherein: At least one spacing roller (229) is rotatably held at the front piece (2219) of the lever body (221).

9. The holding device (2) according to any one of claims 1 to 8, wherein: The front piece (2219) of the lever body (221) includes a magnet chamber (2218), in which at least one retaining magnet (282) is sunk, or a plurality of retaining magnets (282) are sunk.

10. The holding device (2) according to claim 9, wherein: The through opening (22180) is adjacent to the magnet chamber (2218), and the connecting screw (281) passes through the through opening, which connects the retaining magnet (282) to the threaded element (286), which is supported on the supporting spring (285) and keeps the retaining magnet (282) axially displaceable or rotatable or axially displaceable and rotatable.

11. The holding device (2) according to any one of claims 1 to 10, wherein: The retaining magnet (282) is at least partially surrounded by a magnet cup (283) made of plastic and overlaps to such an extent that direct contact between the retaining magnet (282) and the locking element (20) is avoided; or The holding magnet (282) is at least partially surrounded by a magnet cup (283) made of plastic, which is supported on a damping element (284).

12. A functional entity (1) having a door element (111) and a holding device (2) according to any one of claims 1 to 11, The retaining device (2) is connected to the door element (111) and is arranged to cooperate with a locking element (20) connected to a fixed part of the functional entity (1); or The retaining device (2) is connected to a fixed part of the functional entity (1) and is arranged to cooperate with a locking element (20) connected to the door element (111).

13. The functional entity (1) according to claim 12, wherein: The holding device (2) is arranged at the lower side or the upper side of the door element (111); or the holding device (2) is arranged at the lower side and the upper side of the functional entity (1), respectively.

14. The functional entity (1) according to claim 12 or 13, wherein: The door element (111) is connected to an additional door element (112) via at least one foldable door hinge (3); or The door element (111) is connected to an additional door element (112) via at least one foldable door hinge (3).

15. Functional entity (1) according to claim 12, 13 or 14, wherein: The door element (111) is connected to a mounting profile (12) via a mounting hinge (13), and the mounting profile is held displaceably in a door compartment (10) of the piece of furniture (1).

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