Wall element of a mobile partition wall

Abstract

The invention relates to a door element (1) of a mobile partition wall (100), comprising an element frame (2) and a door leaf (4) with door leaf frame (7) attached to the element frame (2), a sealing carrier (10) arranged vertically displaceable on the door leaf frame (7), a sealing strip (17) extendable at the lower end of the door leaf (4) and attached to the sealing carrier (10), and a switchable brake (18) which, in a braking state, locks the sealing carrier (10) relative to the door leaf frame (7) and, in a release state, releases the sealing carrier (10) relative to the door leaf frame (7).

Description

[0001] The present invention relates to a door element of a mobile partition wall. Furthermore, the invention relates to a mobile partition wall comprising the door element.

[0002] Mobile partitions consist of individual, movable wall panels suspended by rollers in a ceiling guide rail within the room to be divided. To erect the partition, the individual wall panels are released from a locking mechanism and moved along the ceiling guide rail. When the partition is removed, the wall panels are stored in a designated area. To close the partition, the wall panels are placed flush against the wall and secured with sealing strips that extend against the ceiling and / or floor. In addition to the wall panels, a mobile partition can also include a door element, which, similar to a wall panel, is suspended from the ceiling guide rail. Such a door element comprises a frame suspended from the ceiling guide rail and a door leaf integrated within the frame.

[0003] DE 29722616 U1 discloses a wall element with a height-adjustable, movable door for partition walls, which combines a door leaf and a frame in a pre-assembled mounting frame with tensioning and sealing mechanisms.

[0004] The document DE 102015005991A1 describes a radiation protection door with an integrated threshold mechanism for improved radiation shielding by means of an electromechanical drive and spring system, which also enables the door to be opened in the event of a power failure.

[0005] Document JP 2002294908A refers to a structural design that includes specially designed structural elements that may contribute to improving the structural strength or functionality of buildings.

[0006] The object of the present invention is to provide a door element for a mobile partition wall which, with the best possible sound insulation, enables comfortable operation of the door element.

[0007] The problem is solved by the features of the independent claims. The dependent claims relate to preferred embodiments of the invention.

[0008] The invention relates to a door element for a mobile partition wall. In addition to this door element, the mobile partition wall can also comprise one or more wall elements. Furthermore, the mobile partition wall can have a ceiling guide rail on which the door element and, optionally, the wall elements are suspended and movable.

[0009] The door assembly comprises a frame and a door leaf (also called a door leaf) attached to the frame. The door leaf, in turn, includes a door leaf frame. The door leaf frame is used to attach other components of the door leaf. The door leaf frame can be designed as a classic frame with a cover plate attached to both sides. However, at least one sturdy cover plate of the door leaf can also be used to accommodate the other components, in which case this cover plate then forms the door leaf frame.

[0010] The door leaf is preferably mounted in the frame so that it can rotate freely, thus forming a revolving door. Hinges are used for this purpose, in particular, to allow the door leaf to rotate freely within the frame. Preferably, the frame includes at least one column section located next to the door leaf, to which the door leaf is pivotally attached. A secondary closing edge is formed between this column section and the door leaf. A column section of the frame can also be formed at the main closing edge of the door leaf. Alternatively, the main closing edge of the door leaf can interact with another door element or wall element of the mobile partition, or it can be formed between the door leaf and a fixed building element, such as an adjacent building wall.

[0011] The element frame preferably extends into an area above the door leaf, so that the entire door element can be higher than the door leaf.

[0012] Preferably, the frame is clad on both sides with one or more cover plates. However, at least one of the cover plates can also be designed to be so robust that it can be used as the frame itself and accommodate other components of the door element; for example, the suspension (rollers) and / or the hinges can be attached to the cover plate.

[0013] Side seals are preferably provided on both sides of the door element. Similar seals are located on the adjacent door or wall elements. These side seals are preferably alternately concave and convex and interlock longitudinally when the mobile partition is erected to achieve sound insulation. Furthermore, it is preferably provided that sealing strips can be extended from the door element, and preferably also from the other door and wall elements of the partition, to create a soundproof seal against the ceiling and floor, once the respective element is in its erection position.

[0014] Of particular interest here is the sealing strip, which can be extended downwards from the door leaf, i.e., it is located at the lower end of the door leaf. For this purpose, a sealing carrier is arranged on the door leaf frame in a vertically displaceable manner. This sealing carrier is guided linearly along the door leaf frame in a vertical direction. The sealing strip is attached to the sealing carrier and can be extended at the lower end of the door leaf.

[0015] When the sealing carrier moves vertically downwards, the sealing strip at the bottom of the door leaf is extended. When the sealing carrier moves vertically upwards in the opposite direction, the sealing strip at the bottom of the door leaf is retracted.

[0016] In the preferred embodiment, the sealing carrier is guided on the door leaf frame with purely linear movement. In general terms, the movement of the sealing carrier can be composed of several different movement vectors. Crucially, the sealing carrier must move vertically downwards and vertically upwards with at least one of its movement vectors to move the sealing strip towards the floor and then retract it again.

[0017] As will be described in detail below, a movement device is preferably located between the sealing strip and the sealing carrier, so that the sealing strip can also be moved relative to the sealing carrier.

[0018] While the door element described here, as part of the mobile partition, is being moved, the sealing strips are retracted into the door element as completely as possible. The space between the top edge of the door element and the ceiling guide rail, or between the bottom edge of the door element and the floor, is referred to as "ceiling clearance" or "floor clearance," respectively. In certain installation situations, floor clearances of, for example, 20 to 100 mm may be required, as fluctuating structural loads can cause ceiling deflections to vary over time within the same building. Similar to ceiling deflection, floor deflection is also relevant, as it can change significantly depending on the load, such as the number of people in the room. For the door leaf of the door element to be soundproof from the floor when closed, the sealing strip must extend from the door leaf and press against the floor.However, when opening the door leaf, the sealing strip should not be fully extended so that the door leaf can be opened freely and does not drag on the floor.

[0019] The sealing carrier arranged in the door leaf frame allows the sealing strip to be adjusted to a specific height, thus taking into account the current ground clearance, which may be altered by ceiling or floor loads. To fix this relative position between the door leaf frame and the sealing carrier, the door element preferably includes a switchable brake. The brake is designed to lock the sealing carrier relative to the door leaf frame in a braking state and to release the sealing carrier relative to the door leaf frame in a release state. Therefore, when the switchable brake is in the release state, the sealing carrier can be moved relative to the door leaf frame to establish a basic distance between the sealing strip and the floor.When the switchable brake is in the braking state, the sealing carrier is fixed relative to the door wing frame, so that the basic distance between the floor and the sealing strip is fixed.

[0020] Preferably, the brake comprises a brake switching element that projects into a gap in a closing edge, particularly a secondary closing edge. Of particular interest here is the lateral secondary closing edge located between the door leaf and the frame. Because the brake switching element projects into this secondary closing edge or into the main closing edge, the brake element can be activated when the door leaf is opened and closed.

[0021] In particular, the brake is designed to hold the brake in the release position when the brake switch element is depressed.

[0022] The brake switching element can be designed, in particular, as a pin. In particular, the brake switching element is designed and arranged such that it is pressed in when the door leaf is closed.

[0023] Furthermore, it is preferably provided that the brake has a braking surface, preferably formed by a brake pad, and preferably a pressure spring. The pressure spring actuates, in particular, the braking surface. The pressure spring preferably presses the braking surface, especially the brake pad, against the sealing carrier, thereby fixing the sealing carrier relative to the door wing frame. The brake switching element is preferably arranged such that, in the depressed state, it can release the braking surface, especially the brake pad, from the sealing carrier against the force of the pressure spring in order to release the brake.

[0024] Preferably, the brake is attached to the door sash frame. Preferably, the brake comprises a brake housing. This brake housing is preferably arranged to be linearly movable on the door sash frame. In particular, the brake housing is linearly movable in the horizontal direction.

[0025] The described clamping spring is preferably attached at one end to the door wing frame and at the other end to the movable brake housing. Furthermore, it is preferably provided that the described braking surface, in particular the brake pad, is preferably arranged on the brake housing. A brake lever, preferably used, connects the brake switching element to the brake housing. The brake lever is preferably mounted so as to be rotatable relative to the door wing frame. Preferably, it is provided that pressing the brake switching element rotates the brake lever, thereby releasing the braking surface from the seal carrier against the force of the clamping spring.

[0026] Furthermore, it is preferably provided that the door leaf frame includes at least one cross member. The brake is preferably arranged on this at least one cross member.

[0027] The sealing carrier preferably has parallel vertical elements. These vertical elements extend in a vertical direction. For example, vertical elements are rods or tubes. The vertical elements are preferably guided through the cross member of the door leaf frame.

[0028] In addition to the vertical elements, the sealing carrier preferably comprises at least two parallel transverse elements that connect the vertical elements. In particular, the at least one transverse member of the door leaf frame is located between the transverse elements of the sealing carrier.

[0029] Preferably, the door leaf frame includes at least one vertical support on which the sealing support is guided in a linearly movable manner.

[0030] The sealing carrier, in particular the transverse elements, preferably has rolling elements, especially rollers, and / or sliding elements for linearly moving guidance of the sealing carrier on the door leaf frame.

[0031] Furthermore, it is preferably provided that the door element includes a vertically movable lift-and-lower unit in the element frame. A driver is preferably located on the sealing carrier. The driver projects into the preferably lateral gap of the closing edge, in particular the secondary closing edge, between the door leaf and the element frame. The driver is arranged and designed such that it can be moved along with the lift-and-lower unit.

[0032] The follower is preferably placed on the lift-and-lower unit. This is particularly intended for use when the door leaf is closed.

[0033] In particular, the follower is designed in such a way that it can be moved along with the lifting and lowering unit when the door leaf is closed and, if necessary, at very small opening angles, and is separated from the lifting and lowering unit when the door leaf is open and therefore can no longer be moved along with it.

[0034] With a sufficiently small opening angle of the door leaf, the follower preferably rests on the lifting-lowering unit and is thus carried upwards by the lifting-lowering unit; in this case, the brake is particularly in the release state.

[0035] If the lifting and lowering unit moves downwards, the driver may lift off the lifting and lowering unit, but is usually moved downwards by the weight force acting on the sealing carrier and an optional extension spring, and therefore rests on the lifting and lowering unit.

[0036] Preferably, the follower has an inclined plane to interact with the lift-and-lower unit; additionally or alternatively, preferably, the lift-and-lower unit has an inclined plane to interact with the follower. In particular, the at least one inclined plane is arranged and designed to lift the follower onto the lift-and-lower unit when, during the closing of the door leaf, the follower is positioned too low relative to the lift-and-lower unit.

[0037] The lifting and lowering unit in the element frame can be operated, for example, electrically, hydraulically, or mechanically. In many applications, each element (door element or wall element) has a connection for a crank, for example. The sealing strips can be moved up and down using such a crank. It is therefore preferred that the lifting and lowering unit described here is designed not only to move the actuator but also to extend a sealing strip at the lower and / or upper end of the element frame. At the lower end of the element frame, the sealing strip located next to the door leaf can be very narrow and is therefore also referred to as the sealing foot.

[0038] The door leaf preferably has a slot at the closing edge, particularly the secondary closing edge, through which the follower extends, allowing it to project into the gap and move vertically within the slot. Preferably, the follower is designed so that, when the door leaf is closed, it projects not only into the gap at the closing edge but also into the adjacent area of ​​the frame.

[0039] Preferably, the door element includes an extension spring that causes the sealing carrier to move downwards relative to the door leaf frame. The lifting and lowering unit allows the sealing carrier to be raised against the force of the extension spring. Particularly preferably, the extension spring is tensioned between one of the transverse elements of the sealing carrier and at least one cross member of the door leaf frame.

[0040] As described at the beginning, the sealing strip is preferably not fixed to the sealing carrier. A movement device is preferably used, which is designed for the vertical extension and retraction of the sealing strip relative to the sealing carrier.

[0041] The sealing carrier is preferably arranged and / or designed to move the sealing strip a greater distance than is possible with the movement device.

[0042] Preferably, the sealing carrier is designed to displace the sealing strip by a greater distance than the movement device displaces the sealing strip.

[0043] The movement device preferably comprises a movement device switching element that projects into the gap of the preferably lateral closing edge, in particular the secondary closing edge between the door leaf and the element frame, in order to switch the movement device when the door leaf is closed and opened.

[0044] The movement device is particularly preferably designed to extend the sealing strip relative to the sealing carrier by pressing in the movement device's switching element. For this purpose, it is particularly provided that the movement device's switching element is a pin that can be pressed in by contact with the element frame when the door leaf is closed.

[0045] The actuation device switching element is arranged in such a way that it is no longer depressed when the door leaf is open. In this case, the sealing strip is preferably moved upwards relative to the sealing carrier by means of a retraction spring of the actuation device.

[0046] The movement device preferably comprises a movement lever. This lever is preferably mounted on the seal carrier so as to be rotatable. The movement lever is preferably connected to a vertical rod. For example, the rod projects into an elongated hole in the movement lever. This allows the rod to be pushed downwards, at least, by rotating the movement lever.

[0047] The retraction spring is preferably located on the rod, for example between the actuation lever and the lower transverse element of the seal carrier. The rod is preferably guided linearly within the lower transverse element of the seal carrier. The rod is preferably connected to the sealing strip to move it.

[0048] The motion device switching element is preferably connected to the motion lever in such a way that the motion lever can be rotated by pressing in the motion device switching element.

[0049] The brake switching element and the motion device switching element are preferably arranged in such a way that when the door leaf is opened, the brake switching element has switched the brake to the braking state before the motion device has moved the sealing strip into an end position.

[0050] The brake switching element and the motion device switching element are preferably arranged relative to each other such that, when the door leaf is closed, the brake switching element moves the brake into the release state after the motion device has already extended the sealing strip at least partially, preferably completely. This applies in particular if the door leaf has been opened wide enough beforehand.

[0051] Preferably, the brake switching element is designed and, in particular, arranged in such a way that when the driver and the lifting-lowering unit meet, the brake is already in the release state.

[0052] The brake / shift element is preferably adjustable in length; in particular by means of a screwed-on sleeve.

[0053] The motion device switching element is preferably adjustable in length; in particular by means of a screwed-on sleeve.

[0054] Without the movable seal carrier and its associated brake, closing the door leaf would cause the sealing strip to extend downwards via the actuator and be spring-loaded against the floor. However, this would require the actuator's control element to always transmit the full stroke, for example, 100 mm – regardless of the actual, instantaneous deflection of the ceiling or floor. Simultaneously, it would be necessary to ensure that the sealing strip only extends quite late when the door leaf closes, at approximately a 10° opening angle, otherwise it would drag on the floor. The actuator's control element would not only have to handle this large stroke, but also overcome the forces of the return and compression springs, resulting in a relatively large workload. This would lead to undesirably high operating forces and significant stress on the mechanism.Furthermore, a currently low ground clearance, for example due to a heavy snow load, would cause the sealing strip to contact the ground earlier during the closing process than with a high ground clearance. In this case, the door leaf could be very difficult to close.

[0055] The sealing carrier and associated brake proposed within the scope of the invention offer the following advantages: When the door leaf is opened, the sealing strip is only lifted by the necessary stroke. This stroke can be, for example, 10 mm. This ensures that the door leaf can always be opened and closed freely by the user. Due to this small stroke, only minimal effort is required when closing the door leaf to extend the sealing strip and press it against the floor under spring tension; this is accomplished by the described movement device. This results in significantly improved ease of use compared to the prior art. The user experiences the same operating force with every use of the door leaf, regardless of the current ceiling deflection, for example, in the range of 0 to 80 mm. This allows for variable floor clearances of the door wall element.The entire mobile partition wall can be adjusted in the range of 20 to 100 mm.

[0056] If the ground clearance changes, for example due to changes in ceiling or floor load, the lift-and-lower unit also moves up or down. This movement is transferred to the sealing carrier via the follower, provided the door leaf is closed. When the door leaf is closed, the follower rests on the lift-and-lower unit and the brake is in the released position. This works because the lift-and-lower unit is always in contact with the floor via at least one additional sealing strip (especially a sealing foot) in the frame as soon as the door element is installed at the appropriate location to form the partition. If this additional sealing strip is pressed in when the ground clearance decreases, the lift-and-lower unit also moves upwards.

[0057] As soon as the door leaf is opened, the brake switch element lifts off the frame and is no longer depressed. This engages the brake and locks the seal carrier. Immediately following or simultaneously, the movement mechanism is activated. When the door leaf is opened, the movement mechanism switch element also lifts off the frame, causing the rod connected to the sealing strip to be retracted by the retraction spring instead of being pressed down. A relatively small stroke, for example, 10 mm, is sufficient because the sealing frame is automatically adjusted to the current ground clearance via the drive mechanism. The door leaf can now be opened freely.

[0058] The brake, which engages when the door leaf opens, is advantageous because it prevents the seal carrier and sealing strip from falling towards the floor. When the door leaf is closed again, the sealing strip is actuated by the movement mechanism and pushed downwards once the door leaf opens to an angle of approximately 10°. Simultaneously, the brake releases and the actuator engages the lifting and lowering unit.

[0059] When the door assembly is removed, the door leaf's sealing strip and the other sealing strips or feet on the door assembly are fully retracted. The sealing carrier in the door leaf is also moved upwards by the actuator, as the door leaf is closed in this position. All sealing strips and feet are then fully retracted into the door assembly, and the door assembly can be moved along the ceiling guide rail. The sealing strip on the door leaf side therefore does not protrude from the door assembly.

[0060] The invention also considers the following situations: In a first scenario, the mobile partition wall is erected, the current ceiling deflection is significant, resulting in low ground clearance, and the door leaf is open. If the ceiling were to rise, for example due to snowmelt, this would increase the ground clearance while the door leaf is open. The sealing strip or sealing feet in the frame would then move further out of the door element and continue to press against the floor. This causes the lifting and lowering mechanism in the frame to move downwards. In this state, the sealing strip of the open door leaf is slightly higher above the floor than necessary.When the door leaf is closed, the sealing strip and its support fall downwards (because the brake is released) until the door leaf-side follower rests again on the frame-side lift-and-lower unit. The door leaf can then be operated as previously described.

[0061] In a second scenario, it is assumed that the mobile partition is erected, the current ceiling deflection is minimal (resulting in ample floor clearance), and the door leaf is open. If the ceiling sags while the door leaf is open, for example due to snowfall, this reduces the floor clearance. The door leaf-side sealing strip, along with its support, is then forced into the door leaf by the floor. This exceeds the braking force of the door stop, allowing the movement to occur. The sealing strip then rests on the floor. In this specific case, the user must close the door leaf once with the sealing strip pressed into place.At the end of the closing process, the follower is lifted slightly upwards by the lifting and lowering unit; for this purpose, the follower is specifically designed to have an inclined plane so that it can be lifted by the lifting and lowering unit, which is positioned too high. Afterwards, the door leaf can be used normally again. In this special case, the open door leaf is protected from damage if the ceiling sags, as the mechanism for moving the sealing strip and its support gives way, and the door leaf as a whole is not subjected to any damaging stress.

[0062] The door element described here preferably includes a suspension at its upper end. This suspension can, for example, include trolleys or rollers. The door element can be suspended from the ceiling guide rail of the mobile partition wall via this suspension.

[0063] The invention further comprises a mobile partition wall with a ceiling guide rail and at least one of the described door elements. The respective door element is preferably attachable to the ceiling guide rail, in particular it is suspended from it.

[0064] The mobile partition wall preferably comprises one or more wall elements that can also be attached to the ceiling guide rail, in particular suspended from it.

[0065] The invention will now be described in more detail using an exemplary embodiment. The following are shown: Fig. 1 a door element according to the invention in an exemplary embodiment, Fig. 2 the in Fig. 1 Detail II, Fig. 3, which is marked in Fig. 1 Detail III, Fig. 4, another detailed view of the door element according to the invention as shown in the exemplary embodiment, Fig. 5. Fig. 4section AA, marked, and Fig. 6 a schematic view of a mobile partition wall according to the invention with the door element according to the embodiments and further wall elements.

[0066] The following will be based on the Figs. 1 to 6 A door element 1 of a mobile partition wall 100 is described in detail. Fig. 6 The figure schematically shows the mobile partition wall 100 with ceiling guide rail 101, from which several wall elements 102 and the door element 1, described in detail here, are suspended. The door element 1 and the wall element 102 can be moved along the ceiling guide rail 101 from a stowed position to their extended position to form a partition wall in a room.

[0067] Fig. 1 The image shows the door element 1 with its single element frame 2. The element frame 2 usually has cover plates on both sides, which are hidden here for the sake of clarity.

[0068] At the upper end of the element frame 2, suspensions 3 in the form of carriages are provided, which are designed to guide the door element 1 linearly in the ceiling guide rail 101.

[0069] The door element 1 comprises a door leaf 4, which is rotatably connected to a lateral, column-like section of the element frame 2 via corresponding hinges 6. A gap 5 forming a secondary closing edge is provided between the door leaf 4 and the laterally adjacent section of the element frame 2. The door element 1 has a sealing strip 17 and a sealing foot 27, which seal against a floor 200. The sealing strip 17 is extendable from the door leaf 4. The sealing foot 27 is extendable from the element frame 2.

[0070] The door leaf frame 7 of door leaf 4 is shown. This door leaf frame 7 may have corresponding cover plates, which are omitted here for clarity. The door leaf frame 7 comprises parallel vertical supports 9 and at least one cross member 8. The vertical supports 9 are connected to each other via the at least one cross member 8.

[0071] Figs. 2 and 3 show the in Fig. 1 Details II and III are marked. Fig. 4 The door leaf frame 7, with the exception of a cross member 8, is hidden to show further details of the construction. Fig. 5 shows the in Fig. 4 marked section AA. Fig. 1 , 2 and 3 The sealing strip 17 is located at the lower end of the door leaf 4. Fig. 4 For the sake of clarity, the sealing strip 17 is hidden.

[0072] The following will focus in particular on these points. Figs. 1 to 5With reference to the following: A sealing carrier 10 is located in the door leaf 4. In the illustrated embodiment, this sealing carrier 10 has transverse elements 12 which are connected to each other via vertical elements 11. The vertical elements 11 connect the transverse elements 12. The vertical elements 11 penetrate one of the cross members 8. This cross member 8 of the door leaf frame 7 is located between the transverse elements 12.

[0073] The transverse elements 12 of the sealing carrier 10 extend between the vertical supports 9 of the door leaf frame 7. At least one guide roller 13 is located on the end face of each transverse element 12 for the vertical, linearly movable guidance of the sealing carrier 10 on the door leaf frame 7. The guide rollers 13 are located on the inside of the vertical support 9 of the door leaf frame 7.

[0074] Furthermore, the transverse elements 12 have guide extensions 14 at their end faces, which project into the adjacent vertical beams 9.

[0075] A driver 15 is located on the sealing carrier 10, in the exemplary embodiment on one of the vertical elements 11. The driver 15 projects into the gap 5. As shown in particular Fig. 4 As shown, the driver 15 has an inclined plane 26.

[0076] A lift-and-lower unit 16 is provided in the element frame 2, particularly in the column-shaped area of ​​the element frame 2 located laterally to the door leaf 4. This lift-and-lower unit 16 can also be referred to as a position transmitter. The lift-and-lower unit 16 is movable in the vertical direction and moves, in particular, together with the sealing foot 27 of the element frame 2. If this sealing foot 27 is moved up or down due to a change in ground clearance, the position of the lift-and-lower unit 16 changes.

[0077] As explained in the general part of the description, when the door leaf 4 is closed, the driver 15 rests on this lifting and lowering unit 16, so that the sealing carrier 10 can be moved upwards by the lifting and lowering unit 16.

[0078] In the event that the lifting and lowering unit 16 is too high when the door leaf 4 is closed, the follower 15 can be pushed upwards by means of the inclined plane 26.

[0079] For downward movement of the sealing carrier 10, an extension spring 25 is provided, which is tensioned between the sealing carrier 10 and the door leaf frame 7. In the specific embodiment, the extension spring 25 is tensioned between the cross member 8 and the upper transverse element 12.

[0080] The extension spring 25 can move the sealing carrier 10 downwards in the closed state of the door leaf 4 until the driver 15 rests on the lifting and lowering unit 16.

[0081] Furthermore, a brake 18 is provided. The brake 18 is arranged on the cross member 8 of the door leaf frame 7. One of the vertical elements 11 of the sealing carrier 10 projects through the brake 18. The brake 18 is designed to lock and release the sealing carrier 10 relative to the door leaf frame 7.

[0082] In particular the representations in the Figs. 4 and 5 The exact construction of the brake 18 is illustrated as follows: The brake 18 comprises a movable brake housing 19. A braking surface, here designed as a brake pad 20, is arranged on this brake housing 19 and can press against the sealing carrier 10 (in particular, the vertical element 11). For this purpose, the brake housing 19 is connected to the door wing frame 7 (in particular, the cross member 8) via a compression spring 21. This compression spring 21 pulls the brake housing 19, and thus the brake pad 20, against the sealing carrier 10.

[0083] Furthermore, the brake 18 comprises a rotatably arranged brake lever 22. The brake lever 22 is rotatably attached to the door wing frame 7 (in particular, the cross member 8) via a first pivot bearing 23. A brake switching element 24 is rotatably connected to the brake lever 22. The brake switching element 24 projects into the gap 5 at the secondary closing edge and can be pressed in when the door wing 4 is closed, causing the brake housing 19 to move against the force of the clamping spring 21 and thereby releasing the brake pad 20 from the sealing carrier 10. This brings the brake 18 into the release state. In this state, when the driver 15 and the lift-lower unit 16 come into contact, the position of the driver 15 can adjust to the position of the lift-lower unit 16.

[0084] When the door wing 4 is opened, the brake switching element 24 can move into the gap 5 due to the force of the pressure spring 21. This puts the brake 18 into the braking state.

[0085] The sealing strip 17 is positioned on the sealing carrier 10 by means of a movement device 30. The movement device 30 comprises a rod 34 on which the sealing strip 17 is arranged. This rod 34 projects upwards through the lower transverse element 12 of the sealing carrier 10, starting from the sealing strip 17.

[0086] Furthermore, the movement device 30 comprises a movement lever 31, which is rotatably mounted on the sealing carrier 10 (in particular the lower transverse element 12) via a second rotary bearing 32. The rod 34 projects into an elongated hole 33 of the movement lever 31, so that by rotating the movement lever 31 the rod 34 and thus the sealing strip 17 can be pushed downwards.

[0087] A retraction spring 35, for example designed as a compression spring, is arranged on the rod 34. The retraction spring 35 is supported on one side against the lower transverse element 12 of the sealing carrier 10 and on the other side against the rod 34, so that the rod 34 can be moved upwards and relative to the sealing carrier 10 by means of the retraction spring 35.

[0088] The movement lever 31 is rotatably connected to a movement device switching element 36. The movement device switching element 36 projects into the gap 5 of the secondary closing edge and can be pressed in by closing the door leaf 4. This allows the sealing strip 17 to be extended relative to the sealing carrier 10.

[0089] When the door leaf 4 is opened, the retraction spring 35 pushes the movement device switching element 36 into the gap 5 via the movement lever 31. This causes the sealing strip 17 to retract relative to the sealing carrier 10.

[0090] According to the invention, when the door leaf 4 is opened, the sealing strip 17 is raised by a defined stroke only, regardless of any movement of the sealing carrier 10. Changes in floor or ceiling loads are compensated for by the sealing carrier 10. In particular, the sealing carrier 10 can overcome a greater stroke than the movement device 30. Reference symbol list

[0091] 1 Door element 2 Element frame 3 Suspension 4 Door leaf 5 Gap 6 Hinges 7 Door leaf frame 8 Cross member 9 Vertical member 10 Sealing carrier 11 Vertical elements 12 Cross elements 13 Guide rollers 14 Guide extension 15 Driver 16 Lifting and lowering unit 17 Sealing strip 18 Brake 19 Brake housing 20 Brake pad 21 Compression spring 22 Brake lever 23 First pivot bearing 24 Brake switching element 25 Extension spring 26 Inclined plane 27 Sealing foot 30 Movement device 31 Movement lever 32 Second pivot bearing 33 Slotted hole 34 Rod 35 Retraction spring 36 Movement device switching element 100 Mobile partition 101 Ceiling guide rail 102 wall elements, 200 floor elements

Claims

1. A door element (1) for a mobile partition wall (100), comprising • an element frame (2) and a door leaf (4) which is fastened to the element frame (2) and has a door leaf frame (7), • a seal carrier (10) arranged so as to be vertically displaceable on the door leaf frame (7), • a sealing strip (17) which can be extended at the lower end of the door leaf (4) and which is arranged on the seal carrier (10), • and a switchable brake (18), which in a braking state fixes the seal carrier (10) relative to the door leaf frame (7) and in a release state releases the seal carrier (10) relative to the door leaf frame (7).

2. The door element according to claim 1, wherein the brake (18) is a brake switching element (24), which projects into a gap (5) of a closing edge, in particular a secondary closing edge between the door leaf (4) and the element frame (2), in order to switch the brake (18) when the door leaf (4) is closed and opened.

3. The door element according to claim 2, wherein the brake (18) is designed to hold the brake (18) in the release state when the brake switching element (24) is pressed in.

4. The door element according to one of the preceding claims, wherein the brake (18) has a brake surface, in particular a brake lining (20), and a pressure spring (21) actuating the brake surface, in particular the brake lining (20).

5. The door element according to one of the preceding claims, wherein the brake (18) is fastened to the door leaf frame (7).

6. The door element according to one of the preceding claims, wherein the door leaf frame (7) comprises at least one vertical carrier (9) on which the seal carrier (10) is guided in a linearly movable manner.

7. The door element according to one of the preceding claims, comprising a vertically movable lifting / lowering unit (16) in the element frame (2) and a driver (15) on the seal carrier (10), wherein the driver (15) projects into the gap (5) of the closing edge, in particular the secondary closing edge between the door leaf (4) and the element frame (2), and can be driven by the lifting / lowering unit (16).

8. The door element according to claim 7, wherein the driver (15) can be placed on the lifting / lowering unit (16) and / or wherein the driver (15) comprises an inclined plane (26) in order to interact with the lifting / lowering unit (16) and / or wherein the lifting / lowering unit (16) comprises an inclined plane in order to interact with the driver (15).

9. The door element according to one of the preceding claims, comprising an extension spring (25) which acts on the seal carrier (10) relative to the door leaf frame (7) for downward movement.

10. The door element according to one of the preceding claims, comprising a movement device (30) which is designed for vertically retracting and extending the sealing strip (17) relative to the seal carrier (10).

11. The door element according to claim 10, wherein the movement device (30) comprises a movement device switching element (36) which projects into the gap (5) of the closing edge, in particular the secondary closing edge between the door leaf (4) and the element frame (2), in order to switch the movement device (30) when the door leaf (4) is closed and opened, in particular wherein the movement device (30) is designed to extend the sealing strip (17) relative to the seal carrier (10) by pressing in the movement device switching element (36).

12. The door element (1) according to claim 10 or 11, wherein the seal carrier (10) is designed to displace the sealing strip (17) by a greater distance than the movement device (30) displaces the sealing strip (17).

13. The door element according to one of claims 7 to 12, wherein the brake switching element (24) is designed in such manner that when the driver (15) and the lifting / lowering unit (16) come into contact, the brake (18) is in the release state.

14. The door element according to one of the preceding claims, comprising at least one suspension (3) at the upper end of the door element (1) for suspending the door element (1) from a ceiling guide rail (101) of a mobile partition wall (100).

15. A mobile partition wall (100), comprising • a ceiling guide rail (101), • at least one door element (1) which can be suspended from the ceiling guide rail (101) according to one of the preceding claims, • and preferably a plurality of wall elements (102) that can be suspended from the ceiling guide rail (101).

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