Door assembly

Abstract

The invention relates to a door arrangement (10) with a door frame (12) and a door leaf (14) pivotably mounted on the door frame (12) and pivotable between a closed position and an open position relative to the door frame (12), wherein the door leaf (14) has a locking device (20) for locking the door leaf (14) to the door frame (12) and a door bottom seal (24) with a movable sealing element (26) for sealing a gap (28) on the underside (30) of the door leaf towards the floor (32), wherein the sealing element (26) is movable relative to the underside (30) of the door leaf between a raised position and a lowered position by means of a drive mechanism (34), wherein the locking device (20) has a drive rod (36) and the locking device (20) is coupled to the door bottom seal (24) via the drive rod (36) in such a way thatthat when the locking device (20) is unlocked in the closed position of the door leaf (14), the sealing element (26) is lifted before the door leaf (14) pivots from the lowered position.

Description

[0001] The invention relates to a door arrangement having the features of the preamble of claim 1.

[0002] Door arrangements of the type mentioned above, with attached bottom seals, are known from the prior art, e.g., from EP 0 509 961 B1. The sealing device described therein has a U-shaped rail, a sliding sealing strip within it, an actuating rod protruding from the end face of the U-shaped rail, and leaf springs that preload the sealing strip into the retracted position. When the actuating rod comes into contact with the door frame as the door leaf closes, the leaf springs are compressed and the sealing strip is lowered. When the door is opened, the leaf springs are released and the sealing strip rises. A disadvantage of this design is that the movement of the sealing strip is directly linked to the pivoting movement of the door leaf. As a result, at small opening angles of the door leaf, the sealing strip is not raised sufficiently and therefore rubs against the bottom.This leads not only to damage to the floor in the area of ​​the door assembly but also to damage to the sealing strip, thus impairing the sealing effect.

[0003] To mitigate these disadvantages, door bottom seals incorporate a lowering delay mechanism that slows down the sealing strip when the door leaf closes. This means the sealing strip only makes contact with the floor later, possibly only when the door leaf is fully closed. This reduces wear on the floor when the door leaf closes. However, this lowering delay mechanism has no effect when the door leaf is opened, so damage can still occur from the sealing strip rubbing against the floor.

[0004] The invention is based on the objective of reducing wear on door assemblies with a door bottom seal. In particular, wear on the floor and door bottom seal when opening a door leaf of the door assembly should be reduced or completely avoided.

[0005] The invention solves this problem by means of a door arrangement with the features of claim 1.

[0006] The door assembly comprises a door frame and a door leaf that is pivotally mounted on the door frame and can pivot between a closed position (door closed) and an open position (door leaf pivoted relative to the door frame). The door leaf has a locking device for locking the door leaf (in the closed position) to the door frame and a bottom seal with a movable sealing element for sealing a gap at the bottom of the door leaf between the door leaf and the floor or ground. The sealing element can be moved between a raised and a lowered position relative to the bottom of the door leaf or the bottom seal by means of a drive mechanism.

[0007] The locking device has a drive rod and the locking device is coupled to the door bottom seal via the drive rod in such a way that when the locking device is unlocked in the closed position of the door leaf, the sealing element is lifted before the door leaf pivots out of the lowered position.

[0008] In particular, the locking mechanism is coupled to the door bottom seal via the drive rod in such a way that, when the locking mechanism is unlocked while the door leaf is closed, the sealing element is lifted from its lowered position before the door leaf can be pivoted. For this purpose, the locking mechanism can be designed such that, when it is unlocked, the sealing element is lifted from the bottom, for example with an air gap of one or more millimeters, before one or more locking elements of the locking mechanism, which lock the door leaf to the door frame, release the door leaf for pivoting (door opening) or move into their release position.

[0009] The proposed door design has the advantage that, even before the door is opened or the door leaf is swung from the closed position and thus unlocked, the sealing element is lifted from its lowered position and therefore no longer has contact with the floor or the surface. This prevents scuff marks on the floor and thus also eliminates wear and tear on the sealing element or its sealing lip caused by the opening process.

[0010] The bottom door seal can also be called an under-leaf door seal. It is a sealing device used to close the gap between the bottom of the door leaf and the floor or subfloor (the "under-door gap"). This gap is a door gap or air gap at the bottom of the door leaf.

[0011] The door bottom seal is specifically designed and / or intended to be attached to the underside of a door leaf, e.g. flush (attachment to a flush underside of the door leaf) or in a groove formed on the underside of the door leaf.

[0012] In the raised position, the sealing element no longer has contact with the floor or surface (no seal) and the door leaf can be swung open. The raised position can also be described as the door leaf swing position.

[0013] In the lowered position, the sealing element rests against the floor or substrate (sealing occurs). The lowered position can also be referred to as the sealing position.

[0014] Advantageously, the door bottom seal can be attached to the underside of the door leaf, with the drive mechanism comprising a first bearing element and a second bearing element. The bearing elements are each coupled, particularly indirectly, to the sealing element and slidably mounted in the door bottom seal (e.g., on or in a profile or support profile of the door bottom seal), so that the bearing elements can each be displaced along the longitudinal direction of the underside of the door leaf (at least over a limited distance). The drive mechanism is pre-tensioned such that the sealing element is forced into the raised position. At the end of the door bottom seal facing away from the drive rod, a plunger protrudes at least partially from the end face.When the door leaf pivots into the closed position, the plunger comes into contact with the door frame and is subjected to a force by the frame. This force acts on the drive mechanism, displacing the sealing element into the lowered position and pre-tensioning the drive mechanism towards the drive rod (i.e., for displacement in the direction of the drive rod). The sliding mounting of the bearing elements and the pre-tensioning of the drive mechanism towards the drive rod facilitate the subsequent lifting of the sealing element. The plunger can be rigidly connected to the second bearing element. Optionally, the plunger can be integrally formed with the second bearing element (the plunger forming a section of the second bearing element). The door bottom seal is, in particular, fixedly attached to the underside of the door leaf.

[0015] As previously mentioned, the door bottom seal can be butt-jointed and / or attached to the underside of the door leaf. Alternatively, the door bottom seal can be positioned and / or attached in a groove formed on the underside of the door leaf.

[0016] Optionally, a damping device can be installed between the plunger and the drive mechanism, in particular between the plunger and a second bearing element (designed as a floating bearing), to delay the lowering of the sealing element. This can reduce or prevent any wear on the floor and sealing element when the door leaf is closed.

[0017] The damping device can be, for example, a hydraulic or pneumatic damper.

[0018] In a preferred embodiment, a spacer can be attached to the free end of the drive rod facing the door bottom seal. When the door leaf is closed, this spacer is positioned in a gap between a lock faceplate of the locking mechanism and a contact section of the first bearing element of the door bottom seal facing the drive rod (opposite the hinge side). The drive rod is coupled to the locking mechanism in such a way that, when the locking mechanism is unlocked, the spacer is pulled out of the gap. As a result of the preload of the drive mechanism towards the drive rod, the first bearing element is displaced towards the lock faceplate, thereby lifting the sealing element from its lowered position. This lifting of the sealing element from the lowered position thus occurs independently of any pivoting of the door leaf.Rather, this lifting is caused by the pre-tensioned drive mechanism, which, after the spacer is pulled out of the free space, displaces the first bearing element, lifting the sealing element from the lowered position.

[0019] The contact section of the first bearing element, when installed, extends along the longitudinal axis of the underside of the door leaf towards the drive rod. With the drive mechanism pre-tensioned and the locking device not yet unlocked, the contact section of the first bearing element rests against the spacer. Optionally, an adjustment mechanism can be provided on the contact section to allow its length to be adjusted along the longitudinal axis of the underside of the door leaf. This adjustment mechanism can, for example, include an adjusting element, such as a cap, which can be adjusted relative to a fixed part of the contact section by means of an adjusting screw. This allows the length of the contact section to be varied and, if necessary, the pre-tension in the drive mechanism to be influenced.

[0020] Specifically, a connecting rod can be pivotally mounted on each bearing element and pre-tensioned relative to the bearing element by means of a spring, with the connecting rods pivotally coupled to the sealing element at their free ends (ends furthest from the bearing element). This is a robust design, as the displacement of the sealing element and the pre-tension are achieved by different components. The springs can each be designed as tension springs.

[0021] As already indicated above, the first bearing element (facing the drive rod) can in particular be arranged in a section of the door bottom seal facing the drive rod and be designed as a floating bearing (first bearing element slidably mounted).

[0022] Advantageously, the second bearing element (the one furthest from the drive rod) can be arranged in a section of the door bottom seal furthest from the drive rod (and slidably guided therein as a floating bearing). By applying force with the plunger, the second bearing element can be moved along the longitudinal direction of the door bottom seal (the second bearing element is slidable relative to the door bottom seal or its housing). This contributes to a simple and uniform lowering of the sealing element. This lowering is effected in particular by the plunger, as it moves the second bearing element towards the first bearing element. Furthermore, the connection of the connecting rods, whose coupling to the sealing element (distance between the pivot axes on the sealing element) is preferably constant, pivots both connecting rods, thus lowering the sealing element.When the sealing element is lowered, the springs, each coupled at one end to one of the connecting rods and at the other end to one of the bearing elements, are pre-tensioned. The second bearing element can be slidably guided in a corresponding profile section of the door bottom seal housing, e.g., a support profile.

[0023] Advantageously, the second bearing element (the one furthest from the drive rod) can be pre-tensioned by a spring element, which exerts a force along the longitudinal direction of the door leaf's underside, away from the drive rod. This forces the plunger coupled to the second bearing element into a position further extended from the door bottom seal. This facilitates the return of the drive mechanism and the bearing elements when the door leaf is opened. When the door leaf is pivoted from the closed to the open position, the spring element forces or pushes the second bearing element along the longitudinal direction of the door leaf's underside, away from the drive rod (towards the hinge side). Since the two bearing elements are coupled to each other via the sealing element, the first bearing element is also moved towards the hinge side by the movement of the second bearing element.This releases the space where the section of the system was previously located, allowing the spacer to (re)enter the space.

[0024] For example, the spring element can be coupled to the door bottom seal or the door leaf at one end and to the second bearing element at the other. Specifically, a stop can be provided, fixed to or within the door bottom seal, and positioned on the side of the second bearing element facing away from the plunger or on the side facing the drive rod. The spring element can be located between the stop and the second bearing element. The spring element can be a compression spring.

[0025] Alternatively, the drive mechanism can incorporate a spring assembly, particularly a leaf spring assembly, instead of connecting rods and springs. The spring assembly can be coupled at one end to the first bearing element (facing the drive rod or opposite the belt) and at the other end to the second bearing element (facing away from the drive rod or on the belt side), and coupled between its two ends (or in an intermediate section) to the sealing element. This is a structurally simple design with relatively few components, as the spring assembly handles both the preloading of the sealing element into the raised position and its movement (raising and lowering).

[0026] In a preferred embodiment, the connecting rod can have a first section coupled to the locking device and a separate second section to which the spacer is attached. Both the first and second sections have a retractable section that interlocks, with a free-running section adjoining each retractable section, allowing the first and second sections of the connecting rod to be displaceable relative to each other. Thus, starting from the position in which the retractable sections are positively engaged (e.g., under tension), the two sections can be inserted relative to each other over a certain distance (length of the free-running section), shortening the connecting rod.This allows the locking device and the first section of the drive rod to be actuated even when the spacer is not in the free space.

[0027] Advantageously, a compression spring can be provided which rests directly or indirectly against the door leaf or the lock faceplate at one end and against the second section of the drive rod or the spacer at the other. The compression spring pre-tensions the second section of the drive rod relative to the door leaf or the first section (in the extension direction). This forces the spacer into the clearance. The sections of the drive rod are thus forced into the extended position relative to each other.

[0028] Specifically, the door bottom seal can have a support profile that is attached to the underside of the door leaf. This allows for a simple and stable connection of the door bottom seal to the underside of the door leaf, for example, by screwing it in place. The support profile can have a U-shaped cross-section. The open end of the U-shaped cross-section can be oriented towards the floor (closed side of the profile facing the underside of the door leaf). As mentioned above, the support profile can have guide sections inside it to guide the bearing elements. The bearing elements can be largely or almost completely contained within the support profile (regardless of their sliding position). The sealing element, when raised, can also be largely or almost completely contained within the support profile.

[0029] Specifically, the sealing element can consist of a sealing body and an attached sealing lip. The sealing lip is easily slidably mounted within the sealing body, allowing the sealing element and its sealing lip to be raised and lowered. The sealing body can be an extruded profile, for example, made of light metal. The sealing body can have a receptacle for the sealing lip, to which or in which the sealing lip can be attached. The sealing lip can be made of plastic or rubber. The sealing lip is the element that creates the seal. In the lowered position of the sealing element, the sealing lip rests on the floor or substrate.

[0030] Advantageously, the locking device can include a main lock which can be operated via a door handle and / or a cylinder lock and is coupled to the drive rod, particularly via a locking mechanism, so that the drive rod can be driven when the main lock is operated. The door handle can be coupled to a lock follower rotatably mounted in the main lock. The cylinder lock can be a profile cylinder arranged in the main lock.

[0031] Specifically, the main lock can have a latch and / or a bolt as locking elements. This ensures reliable locking of the door leaf to the door frame.

[0032] Advantageously, the locking device can have one or more auxiliary locks coupled to the drive rod, each auxiliary lock having a (pre-tensioned with respect to the locking position) latch bolt and / or a swing bolt. This contributes to a particularly secure and stable locking of the door leaf to the door frame. The auxiliary locks can be coupled to the main lock via the drive rod, so that the auxiliary locks can be operated by the main lock, in particular for unlocking the locking device. The locking device can optionally be designed as a multi-point locking system.

[0033] The invention is explained in more detail below with reference to the figures, where identical or functionally identical elements are provided with identical reference numerals, possibly only once. The figures show: Fig. 1 shows an embodiment of a door arrangement in a partial and cutaway view with the locking device disengaged and the sealing element lowered (door leaf in the closed position); Fig. 2 shows a section of the locking device of the door arrangement. Figure 1 In a perspective exploded view Fig. 3, the door arrangement is shown. Figure 1 in a partial and cutaway view with the locking device engaged and the sealing element raised (door leaf in closed position); Fig. 4 the door arrangement made of Figure 1 in a partial and cutaway view with the locking device disengaged and the sealing element raised (door leaf in closed position); and Fig. 5 the door leaf of the door assembly from Figure 1 in a partial and cutaway view with the locking device unactivated and the sealing element raised (door leaf in open position).

[0034] Figure 1Figure 10 shows a door assembly, designated in its entirety by reference numeral 10 (shown only in a partial sectional view). The door assembly 10 comprises a door frame 12 and a door leaf 14 pivotally mounted on the door frame 12. The door leaf 14 can pivot relative to the door frame 12 between a closed position and an open position. The door leaf 14 is pivotally mounted on the door frame 12 at one hinge side 16 by means of hinges (not shown).

[0035] The door leaf 14 has a locking device 20 for locking the door leaf 14 to the door frame 12 in the closed position. The locking device 20 is arranged on a hinge side 22 of the door leaf 14.

[0036] The door leaf 14 also has a bottom door seal 24 with a movable sealing element 26 for sealing a gap 28 on the underside 30 of the door leaf towards the floor 32. Although a "flush" mounting of the bottom door seal 24 on the underside 30 of the door leaf is possible, in this example the bottom door seal 24 is arranged in a groove 31 formed on the underside 30 of the door leaf.

[0037] The sealing element 26 of the door bottom seal 24 is moved relative to the underside of the door leaf 30 by means of a drive mechanism 34 between a raised position (door leaf pivot position; cf. Fig. 3 or 5 ) and a lowered position (sealing position; cf. Fig.1 ) movable.

[0038] The locking device 20 has a drive rod 36 and is coupled to the door bottom seal 24 via the drive rod 36 in such a way that when the locking device 20 is unlocked in the closed position of the door leaf 14, the sealing element 26 is lifted before the door leaf 14 pivots from the lowered position (see figure). Fig.3 ).

[0039] In this example, the door bottom seal 24 is fixedly attached to the underside 30 of the door leaf, with the drive mechanism 34 comprising a first bearing element 50 and a second bearing element 52. The bearing elements 50 and 52 are each indirectly coupled to the sealing element 26 and slidably mounted in the door bottom seal 24, so that the bearing elements 50 and 52 can each be moved along the longitudinal direction 38 of the underside 30 of the door leaf. The drive mechanism 34 is pre-tensioned such that the sealing element 26 is forced into the raised position. At the end of the door bottom seal 24 facing away from the drive rod 36 (hinge side 16), a plunger 40 protrudes at least partially from the door bottom seal 24.When the door leaf 14 pivots into the closed position, the plunger 40 comes into contact with the door frame 12 and is subjected to a force by the frame. This force acts on the drive mechanism 34, displacing the sealing element 26 into the lowered position and biasing the drive mechanism 34 towards the drive rod 36 (i.e., towards the opposite side 22 of the hinge). In this example, the plunger 40 is rigidly connected to the second bearing element 52.

[0040] Optionally, a damping device for lowering delay can be connected between the plunger 40 and the drive mechanism 34, in particular the second bearing element 52, as described above. In this variant, it is conceivable that the plunger 40 is slidably mounted relative to the second bearing element 52 and that the lowering delay is integrated into this slidable mounting.

[0041] At the free end of the drive rod 36, facing the door bottom seal 24, a spacer 42 is attached. When the door leaf 14 is closed, this spacer is located in a clearance 44 between a lock faceplate 46 of the locking device 20 and a contact section 47 of the first bearing element 50 facing the drive rod 36 (hinge side 22). The drive rod 36 is coupled to the locking device 20 in such a way that when the locking device is unlocked (drive rod 36 is retracted or lifted), the spacer 42 is pulled out of the clearance 44. As a result of the preload of the drive mechanism 34 towards the drive rod 36, the first bearing element 50 is displaced towards the lock faceplate 46, lifting the sealing element 26 from its lowered position.

[0042] The system section 47 of the first bearing element 50 extends in the assembled state along the longitudinal direction 38 of the underside of the door leaf 30 in the direction of the drive rod 36 (cf. Fig.1 The first bearing element 50 rests (with the drive mechanism 34 pre-tensioned and the locking device 20 not yet unlocked) with its contact section 47 against the spacer 42. Optionally, an adjustment device can be provided on the contact section 47, as described above.

[0043] Each of the bearing elements 50, 52 has a connecting rod 54, 56 pivotally mounted and pre-tensioned relative to the respective bearing element 50, 52 by means of a spring 58, 60, wherein the connecting rods 54, 56 are pivotally coupled to the sealing element 26 at their free end (end furthest from the bearing element 50, 52). In this example, the springs 58, 60 are each designed as tension springs and are each coupled at one end to the respective bearing element 50, 52 and at the other end to the respective connecting rod 54, 56.

[0044] The first bearing element 50 is arranged in a section of the door bottom seal 24 facing the drive rod 36 and is slidably guided therein as a floating bearing. The second bearing element 52 is arranged in a section of the door bottom seal 24 facing away from the drive rod 36 and is slidably guided therein as a floating bearing. By applying pressure with the plunger 40, the second bearing element 52 can be moved along the longitudinal direction 38 of the door bottom seal 24. In this example, the first bearing element 50 and the second bearing element 52 are each slidably guided in a corresponding profile section of the housing 25 of the door bottom seal 24, e.g., a support profile 25 (not shown in detail).

[0045] The second bearing element 52 is pre-tensioned by means of a spring element 62, which exerts a force on the second bearing element 52 along the longitudinal direction 38 of the underside 30 of the door leaf away from the drive rod 36 (towards the hinge side 16). The spring element 62 is coupled at least indirectly at one end to the door bottom seal 24 or the door leaf 14 and at the other end to the second bearing element 52. In this example, a stop 63 is provided, which is fixedly fixed in the door bottom seal 24 and is located on the side of the second bearing element 52 facing away from the plunger 40 or on the side facing the drive rod 36. The spring element 62 is arranged between the stop 63 and the second bearing element 52. In this example, the spring element 62 is designed as a compression spring.

[0046] As an alternative to the design of the drive mechanism 34 described here, it can have a leaf spring device (instead of connecting rods and springs), as described above.

[0047] The connecting rod 36 has a first section 64, which is coupled to the locking device 20 (e.g. a main lock of the locking device), and a separate second section 66, to which the spacer 42 is attached (cf. Fig.2The first section 64 and the second section 66 each have a rear-engaging section 68, 70, via which the first section 64 and the second section 66 interlock, with a free-running section 72, 74 adjoining each rear-engaging section 68, 70, so that the first section 64 and the second section 66 of the connecting rod 36 are slidable relative to each other. Thus, starting from the position in which the rear-engaging sections 68, 70 (e.g., under load) positively engage each other (maximum length of the connecting rod 36), the two sections 64, 66 can be inserted relative to each other over a certain distance (length of the free-running section 72, 74) (connecting rod 36 shortens).

[0048] A compression spring 76 is provided, which on one end bears directly or indirectly against the door leaf 14 or the lock faceplate 46 and on the other end bears against the second section 66 of the drive rod 36 or against the spacer 42 (see Fig.1 and 2 The compression spring 76 pre-tensions the second section 66 of the drive rod 36 relative to the door leaf 14 or to the first section 64 (in the extension direction). In this example, the compression spring 76 is arranged in a corresponding receptacle 77, which is fastened to the strike plate 46 by means of a screw 78.

[0049] As already indicated above, the door bottom seal 24 has a support profile 25 which is attached to the underside 30 of the door leaf, e.g. by screws. In this example, the support profile 25 has a U-shaped cross-section, the open end of which is oriented towards the floor 32 (closed profile side facing the underside of the door leaf). The support profile 25 has guide sections inside for guiding the bearing elements 50, 52 (not shown).

[0050] The sealing element 26 has a sealing body 27 and a sealing lip 29 attached to it (see figure). Fig.1 The sealing body 27 can be designed as an extruded profile, e.g., made of light metal. The sealing body 27 can have a receptacle for the sealing lip 29 (not shown in detail), to or in which the sealing lip 29 can be attached. The sealing lip 29 can be made of plastic or rubber.

[0051] The locking device 20 can include a main lock (not shown) which can be operated via a door handle and / or a cylinder lock and is coupled, in particular via a locking mechanism, to the drive rod 36, so that the drive rod 36 can be driven when the main lock is operated. The main lock can include a latch and / or a bolt as locking elements (not shown).

[0052] The locking device 20 can have one or more auxiliary locks which are coupled to the drive rod 36. In Figure 2 A secondary lock 23 is shown, which has a latch bolt 25 as its locking element. The secondary lock 23 is coupled to the main lock, so that the secondary lock 23 can be operated by means of the main lock (not shown), in particular to unlock the locking device 20.

[0053] The device's functionality is described with reference to Fig.1 to Fig.5 explained in more detail.

[0054] In the Figure 1 In the position shown, the door leaf 14 is in the closed position and the locking device 20 is locked. The sealing element 26 of the door bottom seal 24 is in the lowered position. By the action of the plunger 40 on the drive mechanism 34, the latter is biased towards the drive rod 36 or towards the opposite side of the hinge 22 (springs 58, 60 are tensioned). The spacer 42 is located in the clearance 44 between the lock faceplate 46 and the bearing section 47 of the first bearing element 50.

[0055] When the locking device 20 is unlocked in the closed position of the door leaf 14, e.g. by actuating a door handle of the main lock, the drive rod 36 is retracted or lifted by the locking device 20, whereby the rear engagement sections 68, 70 engage behind each other and the sections 64, 66 of the drive rod are lifted. This pulls the spacer 42 out of the clearance 44 (see figure). Fig.3 Since the drive mechanism 34 is under preload, the first bearing element 50 is displaced towards the drive rod 36 or the lock faceplate 46. The sealing element 26 is lifted by the lock mechanism 34. The door leaf 14 is still in the closed position and can be opened or pivoted as soon as the locking elements of the locking device 20 have reached the release position.

[0056] Would starting from the in Figure 3The door leaf 14 is not opened in the position shown, but the locking device 20 is engaged (without opening the door leaf 14), e.g. by releasing the door handle (cf. Fig.4 ), in the locked position, the section 64 of the connecting rod 36 moves relative to the section 66 of the connecting rod 36 by the rear gripping sections 68, 70 moving along the free-running sections 72, 74 relative to each other (cf. Fig.2 ). The spacer 42 cannot penetrate into the free space 44, since the plunger 40 rests against the door frame 12 and still acts on the drive mechanism 34, resulting in a corresponding preload and the contact section 47 of the first bearing element 50 protrudes into the free space 44 (cf. Fig.4 The spacer 42 therefore cannot penetrate the free space 44. The sealing element 26 is in the raised position.

[0057] Figure 5shows a state in which the door leaf 14, following the unlocking of the locking device 20, has been displaced, causing the first bearing element 50 to be moved towards the drive rod 36 or the lock faceplate 46 and lifting the sealing element 26 (in Figure 3 (situation shown), opened or pivoted (open position of the door leaf 14; door frame 12 is not shown here).

[0058] When the door leaf 14 pivots into the open position, the plunger 40 is relieved of pressure and, depending on the door opening angle, comes out of contact with the door frame 12. The preload or preload force applied by the plunger 40 to the drive mechanism 34 is thus reduced, possibly even to zero. As a result, the force of the spring element 62 (compression spring) predominates, causing the second bearing element 52 to be moved away from the drive rod 36, or towards the hinge side 16. Since the second bearing element 52 is coupled to the first bearing element 50 via the sealing element 26, the first bearing element 50 is also moved away from the drive rod 36, or towards the hinge side 16, as a result of the displacement of the second bearing element 52. The section 47 of the first bearing element 50 is displaced from the free space 44, at least to the extent that the spacer 42 can penetrate into the free space 44. The sealing element 26 is in the raised position.

[0059] If the door leaf 14 is opened from the side in Figure 5 As the plunger 40 pivots into the closed position shown, it comes into contact with the door frame 12 and is subjected to a force by it. The second bearing element 52 is displaced towards the drive rod 36, i.e., away from the hinge side 16, whereby the spring element 62 (compression spring) is compressed. The first bearing element 50, with its contact section 47, comes into contact with the spacer 42, and the sealing element 26 is displaced into the lowered position. This results in the following: Figure 1 The situation shown is in which the door leaf 14 is in the closed position, the locking device 20 is unactuated (locked) and the sealing element 26 is in the lowered position.

Claims

1. Door arrangement (10) comprising a door frame (12) and a door leaf (14) pivotably mounted on the door frame (12) and pivotable between a closed position and an open position relative to the door frame (12), wherein the door leaf (14) has a locking device (20) for locking the door leaf (14) to the door frame (12) and a door bottom seal (24) with a movable sealing element (26) for sealing a gap (28) on the underside (30) of the door leaf towards the floor (32), wherein the sealing element (26) is movable relative to the underside (30) of the door leaf between a raised position and a lowered position by means of a drive mechanism (34), characterized by the fact thatthe locking device (20) has a drive rod (36) and the locking device (20) is coupled to the door bottom seal (24) via the drive rod (36) in such a way that when the locking device (20) is unlocked in the closed position of the door leaf (14), the sealing element (26) is lifted before the door leaf (14) pivots out of the lowered position.

2. Door arrangement (10) according to claim 1, characterized by the fact thatThe door bottom seal (24) is attached to the underside (30) of the door leaf, the drive mechanism (34) comprising a first bearing element (50) and a second bearing element (52), the bearing elements (50, 52) each being coupled to the sealing element (26) and slidably mounted in the door bottom seal (24) so ​​that the bearing elements (50, 52) can each be displaced along the longitudinal direction (38) of the underside (30) of the door leaf, the drive mechanism (34) being pre-tensioned such that the sealing element (26) is forced into the raised position, a plunger (40) protrudes at least partially from the end face of the door bottom seal (24) facing away from the drive rod (36), the plunger (40) coming into contact with the door frame (12) when the door leaf (14) pivots into the closed position and being subjected to a force by it, thereby the plunger (40) acts on the drive mechanism (34) in such a way,that the sealing element (26) is moved into the lowered position and the drive mechanism (34) is pre-tensioned in the direction of the connecting rod (36).

3. Door arrangement (10) according to claim 2, characterized by the fact thatA spacer (42) is attached to the free end of the drive rod (36) facing the door bottom seal (24), which, in the closed position of the door leaf (14), is arranged in a free space (44) between a lock faceplate (46) of the locking device (20) and a contact section (47) of the first bearing element (50) facing the drive rod (36), wherein the drive rod (36) is coupled to the locking device (20) in such a way that when the locking device (20) is unlocked, the spacer (42) is pulled out of the free space (44), so that, as a result of the preload of the drive mechanism (34) towards the drive rod (36), the first bearing element (50) is displaced towards the lock faceplate (46), whereby the sealing element (26) is lifted from the lowered position.

4. Door arrangement (10) according to claim 2 or 3, characterized by the fact thatEach of the bearing elements (50, 52) has a connecting rod (54, 56) pivotably mounted and pre-tensioned relative to the respective bearing element (50, 52) by means of a spring (58, 60), wherein the connecting rods (54, 56) are pivotably coupled to the sealing element (26) at their free ends.

5. Door arrangement (10) according to one of claims 2 to 4, characterized by the fact that the second bearing element (52) is arranged in a section of the door bottom seal (24) facing away from the drive rod (36) and can be moved along the longitudinal direction (38) of the door bottom seal (24) by applying pressure with the plunger (40).

6. Door arrangement (10) according to one of claims 2 to 5, characterized by the fact that the second bearing element (52) is pre-tensioned by means of a spring element (62), which exerts a force on the second bearing element (52) along the longitudinal direction (38) of the underside of the door leaf (30) away from the drive rod (36).

7. Door arrangement (10) according to one of claims 2, 3, 5 or 6, characterized by the fact that the drive mechanism (34) comprises a spring device, in particular a leaf spring device, wherein the spring device is coupled at one end to the first bearing element (50), at the other end to the second bearing element (52) and is coupled between its two ends to the sealing element (30).

8. Door arrangement (10) according to one of claims 3 to 7, characterized by the fact thatthe connecting rod (36) has a first section (64) which is coupled to the locking device (20) and a separate second section (66) to which the spacer (42) is attached, wherein the first section (64) and the second section (66) each have a rear-engaging section (68, 70) via which the first section (64) and the second section (66) engage each other, wherein a free-running section (72, 74) is connected to each rear-engaging section (68, 70) so that the first section (64) and the second section (66) of the connecting rod (36) are displaceable relative to each other.

9. Door arrangement (10) according to one of claims 3 to 8, characterized by the fact that a compression spring (76) is provided which on one side directly or indirectly rests on the door leaf (14) or on the lock faceplate (46) and on the other side rests on the second section (66) of the drive rod (36) or on the spacer (42).

10. Door arrangement (10) according to one of the preceding claims, characterized by the fact that The door bottom seal (24) has a support profile (25) which is attached to the underside (30) of the door leaf.

11. Door arrangement (10) according to one of the preceding claims, characterized by the fact that the sealing element (26) has a sealing body (27) and a sealing lip (29) attached to it.

12. Door arrangement (10) according to one of the preceding claims, characterized by the fact that the locking device (20) has a main lock which can be operated via a door handle and / or a locking cylinder and is coupled to the drive rod (36) so that the drive rod (36) can be driven when the main lock is operated.

13. Door arrangement (10) according to claim 12, characterized by the fact that the main lock has a latch and / or a bolt as locking elements.

14. Door arrangement (10) according to one of the preceding claims, characterized by the fact thatthe locking device (20) has one or more auxiliary locks (23) which are coupled to the drive rod (36), wherein the auxiliary locks (23) each have a latch bolt (25) and / or a swing bolt.