DOOR PLACEMENT

Description

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

[0002] Door assemblies of the type mentioned above with attached door bottom seals are known from the prior art, for example from EP 0 509 961 B1. The sealing device described therein comprises a U-shaped rail, a sealing strip which can be moved therein, an actuating rod which protrudes from the end face of the U-shaped rail, and leaf springs which preload the sealing strip into the retracted position. When the actuating rod comes into contact with the door frame when the door leaf is closing, the leaf springs are compressed and the sealing strip is lowered. When the door leaf is opened, the leaf springs are released again and the sealing strip is raised. The disadvantage here is that the displacement of the sealing strip is forcibly coupled to the pivoting movement of the door leaf. As a result, the sealing strip is not raised sufficiently when the door leaf is opened at small angles and therefore scrapes the floor.In addition to damaging the floor in the area of ​​the door assembly, this also damages the sealing strip, thus impairing the sealing effect.

[0003] To mitigate these disadvantages, door floor seals have been designed with delays in lowering the sealing strip when the door leaf is closed. This delays the sealing strip's contact with the floor when the door leaf is closed, possibly only when the door leaf is in the closed position. This reduces wear on the floor when the door leaf is closed. However, these delays have no effect when the door leaf is opened, so damage can still occur if the sealing strip rubs against the floor.

[0004] US 10,167,666 B2 shows a sealing system for windows with a latch, a connecting rod, and a gear acting on a first rod connected via triangular elements to a second rod with a sealing element. If the first rod is moved relative to the second rod, the second rod with the sealing element lowers to the floor. JP H09 78958 A shows a door assembly according to the preamble of claim 1 and shows a shield for the lower door edge with a similar structure. There, the movement of a rod is converted via two movement conversion mechanisms into the movement of a sealing element sealing a door gap. EP 2 063 060 A2 discloses a seal with a lowerable sealing strip, wherein a horizontal movement of a coupling element is converted into a vertical movement of a sealing strip.

[0005] The invention is based on the object of reducing wear on door assemblies with door bottom seals. In particular, wear on the bottom and door bottom seal when opening a door leaf of the door assembly is to be reduced or completely eliminated.

[0006] The invention solves this problem by a door arrangement having the features of claim 1.

[0007] The door assembly comprises a door frame and a door leaf pivotably mounted on the door frame and pivotable relative to the door frame 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 door bottom seal with a movable sealing element for sealing a gap on the underside of the door leaf to the floor or subsurface. The sealing element can be moved relative to the underside of the door leaf or the door bottom seal between a raised position and a lowered position by means of a drive mechanism.

[0008] 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 raised before the door leaf pivots from the lowered position.

[0009] In particular, 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 raised from the lowered position before the door leaf can be pivoted. For this purpose, the locking device can be designed such that when the locking device is unlocked, the sealing element is raised from the floor, for example, with an air gap of one or more millimeters, before one or more locking elements of the locking device, which lock the door leaf to the door frame, release the door leaf for pivoting (door opening) or move into their release position.

[0010] The proposed design of the door assembly has the advantage that the sealing element is raised from the lowered position before the door is opened or before the door leaf pivots from the closed position and the associated unlocking, thus removing it from contact with the floor or the subsurface. This eliminates any abrasion marks on the floor and thus also eliminates any wear on the sealing element or a sealing lip caused by the opening process.

[0011] The door bottom seal can also be referred to as a bottom door seal. The door bottom seal is a sealing arrangement used to seal a gap between the underside of the door leaf and the floor or subfloor ("underdoor gap"). This gap is a door gap or air gap on the underside of the door leaf.

[0012] The door bottom seal is in particular designed and / or intended to be attached to the underside of a door leaf, for example butt-mounted (attachment to a blunt door leaf underside) or in a groove formed on the underside of the door leaf.

[0013] In the raised position, the sealing element no longer has contact with the floor or substructure (no sealing), and the door leaf can be pivoted. This raised position can also be referred to as the door leaf pivot position.

[0014] In the lowered position, the sealing element rests against the floor or subsurface (sealing is achieved). This lowered position can also be referred to as the sealing position.

[0015] Further according to the invention, the door bottom seal is attached to the underside of the door leaf, wherein the drive mechanism has a first bearing element and a second bearing element. The bearing elements are each coupled, in particular indirectly, to the sealing element and displaceably 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 preloaded 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 front side.When the door leaf is pivoted into the closed position, the plunger comes into contact with the door frame and is subjected to a force by this, whereby the plunger acts on the drive mechanism in such a way that the sealing element is moved into the lowered position and the drive mechanism is preloaded towards the drive rod (i.e. for displacement in the direction of the drive rod). The movable mounting of the bearing elements and the preload of the drive mechanism in the direction of the drive rod promotes later lifting of the sealing element. The plunger can be firmly connected to the second bearing element. The plunger can optionally be formed integrally with the second bearing element (the plunger forms a section of the second bearing element). The door bottom seal is, in particular, fixedly attached to the underside of the door leaf.

[0016] As previously indicated, the door bottom seal can be arranged and / or attached flush to the underside of the door leaf. Alternatively, the door bottom seal can be arranged and / or attached in a groove formed on the underside of the door leaf.

[0017] Optionally, a damping device can be installed between the tappet and the drive mechanism, particularly between the tappet 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 base and sealing element when the door leaf closes.

[0018] The damping device can be, for example, a hydraulic or pneumatic damper.

[0019] 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 in the closed position, this spacer is arranged in a free space between a lock face of the locking device 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 device in such a way that when the locking device is unlocked, the spacer is pulled out of the free space. As a result of the pretensioning of the drive mechanism towards the drive rod, the first bearing element is displaced towards the lock face, whereby the sealing element is raised from the lowered position. The sealing element is thus raised from the lowered position independently of any pivoting of the door leaf.Rather, this lifting is caused by the pre-tensioned drive mechanism, which displaces the first bearing element after the spacer is pulled out of the free space, whereby the sealing element is lifted from the lowered position.

[0020] When installed, the contact section of the first bearing element extends along the longitudinal direction of the underside of the door leaf in the direction of the drive rod. The first bearing element rests against the spacer with its contact section (with the drive mechanism preloaded and the locking device not yet unlocked). Optionally, an adjustment device can be provided on the contact section, by means of which the length of the contact section can be adjusted along the longitudinal direction of the underside of the door leaf. The adjustment device can, for example, have an adjusting element, e.g. a cap, which can be adjusted relative to a fixed part of the contact section using an adjusting screw. This allows the length of the contact section to be varied and, if necessary, the preload prevailing in the drive mechanism to be influenced.

[0021] Specifically, a coupling rod can be pivotally mounted on each of the bearing elements and preloaded relative to the bearing element by a spring. The coupling rods are each pivotally coupled to the sealing element at the free end (the end facing away from the bearing element). This is a structurally robust design, since the displacement of the sealing element and the preload are achieved by different components. The springs can each be designed as tension springs.

[0022] As already indicated above, the first bearing element (facing the drive rod) can be arranged in particular in a section of the door bottom seal facing the drive rod and can be designed as a loose bearing (first bearing element displaceably mounted).

[0023] Advantageously, the second bearing element (facing away from the drive rod) can be arranged in a section of the door bottom seal facing away from the drive rod (and guided therein as a loose bearing). By being acted upon by the tappet, the second bearing element can be displaced along the longitudinal direction of the door bottom seal (the second bearing element is displaceable relative to the door bottom seal or its housing). This contributes to a simple and uniform lowering of the sealing element. This lowering is brought about in particular by the tappet, as this displaces the second bearing element towards the first bearing element and, by connecting the coupling rods, whose coupling to the sealing element (distance between the pivot axes on the sealing element) in particular has a constant distance, pivots both coupling rods and thus lowers the sealing element.When the sealing element is lowered, the springs, each of which is coupled at one end to one of the coupling rods and at the other end to one of the bearing elements, are preloaded. The second bearing element can be slidably guided in a corresponding profile section of the door bottom seal housing, e.g., a support profile.

[0024] The second bearing element (facing away from the drive rod) can expediently be preloaded by means of a spring element, which applies a force to the second bearing element along the longitudinal direction of the underside of the door leaf, away from the drive rod. This forces the plunger coupled to the second bearing element into a position further pushed out from the door bottom seal. This promotes a resetting of the drive mechanism or the bearing elements when the door leaf is opened. If the door leaf is pivoted from the closed position to an open position, the spring element forces or pushes the second bearing element along the longitudinal direction of the underside of the door leaf, away from the drive rod (towards the hinge side). Since the two bearing elements are coupled to one another via the sealing element, the first bearing element is also moved towards the hinge side when the second bearing element is moved.This releases the space in which the system section was previously located, so that the spacer can (again) penetrate into the space.

[0025] For example, the spring element can be coupled at one end to the door bottom seal or the door leaf and at the other end to the second bearing element. Specifically, a stop can be provided that is immovably attached to or in the door bottom seal and is arranged on the side of the second bearing element facing away from the tappet or on the side of the second bearing element facing the drive rod. The spring element can be arranged between the stop and the second bearing element. The spring element can be a compression spring.

[0026] In an alternative embodiment, the drive mechanism (instead of coupling rods and springs) can comprise a spring device, in particular a leaf spring device. The spring device can be coupled at one end to the first bearing element (facing the drive rod or opposite the hinge side), at the other end to the second bearing element (facing away from the drive rod or opposite the hinge side), and between its two ends (or in an intermediate region) to the sealing element. This is a structurally simple design with comparatively few components, since the spring device assumes both the preload of the sealing element into the raised position and its displacement (raising and lowering).

[0027] In a preferred embodiment, the drive rod can have a first section coupled to the locking device and a separate second section to which the spacer is attached. The first section and the second section each have a rear engagement section, via which the first section and the second section engage one another. A freewheel section is connected to the rear engagement section, so that the first section and the second section of the drive rod are movable relative to one another. Thus, starting from the position in which the rear engagement sections (e.g., under tension load) are in positive contact with one another (maximum length of the drive rod), the two sections can be pushed in relative to one another over a certain distance (length of the freewheel section) (the drive rod shortens).This allows the locking device and the first section of the drive rod to be actuated even if the spacer is not in the free space.

[0028] Advantageously, a compression spring can be provided, one end of which rests directly or indirectly on the door leaf or the lock faceplate, and the other end on the second section of the drive rod or the spacer. The compression spring pretensions the second section of the drive rod relative to the door leaf or the first section (in the extension direction). This pushes the spacer into the free space. The sections of the drive rod are forced into the extended position relative to each other.

[0029] Specifically, the door bottom seal can have a support profile that is attached to the underside of the door leaf. This allows for simple and stable connection of the door bottom seal to the underside of the door leaf, e.g., by screwing. 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 profile side facing the underside of the door leaf). As indicated above, the support profile can have guide sections inside it to guide the bearing elements. The bearing elements can be accommodated predominantly in the support profile (regardless of their displacement position). The sealing element can also be accommodated largely or almost entirely inside the support profile when raised.

[0030] Specifically, the sealing element can comprise a sealing body and a sealing lip attached to it. The sealing lip is easily mounted within the sealing body by the sealing body, to which the sealing lip is held, so that the sealing element or sealing lip can be raised and lowered. The sealing body can be designed as an extruded profile, e.g., made of light metal. The sealing body can have a receptacle for the sealing lip, to 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 exerts a sealing effect. In the lowered position of the sealing element, the sealing lip rests on the floor or subsurface.

[0031] The locking device can expediently comprise a main lock, which can be actuated via a door handle and / or a locking cylinder and is coupled to the drive rod, in particular via a lock mechanism, so that the drive rod can be driven when the main lock is actuated. The door handle can be coupled to a lock follower rotatably mounted in the main lock. The locking cylinder can be a profile cylinder arranged in the main lock.

[0032] Specifically, the main lock can have a latch and / or a deadbolt as locking elements. This allows for reliable locking of the door leaf to the door frame.

[0033] Advantageously, the locking device can have one or more secondary locks coupled to the drive rod, with the secondary locks each having a latch bolt (pre-tensioned with respect to the locking position) and / or a pivot bolt. This contributes to a particularly secure and stable locking of the door leaf to the door frame. The secondary locks can be coupled to the main lock by means of the drive rod, so that the secondary locks can be actuated by means of the main lock, in particular for unlocking the locking device.

[0034] The locking device can optionally be designed as a multi-point locking system.

[0035] The invention is explained in more detail below with reference to the figures, in which identical or functionally identical elements are provided with identical reference numerals, if necessary, but only once. They show: Fig.1 shows an embodiment of a door arrangement in a partial and sectional view with the locking device unactuated and the sealing element lowered (door leaf in the closed position); Fig.2 shows a section of the locking device of the door arrangement from Figure 1 in a perspective exploded view Fig.3 the door arrangement from Figure 1 in a partial and sectional view with the locking device actuated and the sealing element raised (door leaf in closed position); Fig.4 the door arrangement from Figure 1 in a partial and sectional view with the locking device deactivated 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 sectional view with the locking device not actuated and the sealing element raised (door leaf in the open position).

[0036] Figure 1shows a door assembly, designated overall by reference numeral 10 (shown only in a partial sectional view). The door assembly 10 has a door frame 12 and a door leaf 14 pivotally mounted on the door frame 12. The door leaf 14 can be pivoted 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 on a hinge side 16 by means of door hinges (not shown).

[0037] The door leaf 14 has a locking device 20 for locking the door leaf 14 in the closed position to the door frame 12. The locking device 20 is arranged on a hinge side 22 of the door leaf 14.

[0038] The door leaf 14 also has a door bottom seal 24 with a movable sealing element 26 for sealing a gap 28 on the door leaf underside 30 to the floor 32. Although a "butt" installation of the door bottom seal 24 on the door leaf underside 30 is possible, in the example, the door bottom seal 24 is arranged in a groove 31 formed on the door leaf underside 30.

[0039] The sealing element 26 of the door bottom seal 24 is movable by means of a drive mechanism 34 relative to the door leaf underside 30 between a raised position (door leaf pivot position; cf. Fig. 3 or 5 ) and a lowered position (sealing position; see Fig.1 ) can be relocated.

[0040] 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 raised from the lowered position before the door leaf 14 is pivoted (cf. Fig.3 ).

[0041] In the example, the door bottom seal 24 is immovably attached to the door leaf underside 30, with the drive mechanism 34 having a first bearing element 50 and a second bearing element 52. The bearing elements 50, 52 are each indirectly coupled to the sealing element 26 and displaceably 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 door leaf underside 30. The drive mechanism 34 is preloaded 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 latter. As a result, the plunger 40 acts on the drive mechanism 34 in such a way that the sealing element 26 is displaced into the lowered position and the drive mechanism 34 is preloaded toward the drive rod 36 (i.e., toward the opposite hinge side 22). In the example, the plunger 40 is firmly connected to the second bearing element 52.

[0042] Optionally, a damping device for delaying the lowering action 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 for the plunger 40 to be displaceably mounted relative to the second bearing element 52, and for the delaying action to be integrated into this displaceable mounting.

[0043] A spacer 42 is attached to the free end of the drive rod 36 facing the door bottom seal 24. When the door leaf 14 is in the closed position, the spacer 42 is arranged in a free space 44 between a lock face 46 of the locking device 20 and a contact section 47 of the first bearing element 50 facing the drive rod 36 (opposite 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 raised), the spacer 42 is pulled out of the free space 44, so that, as a result of the pretension of the drive mechanism 34 toward the drive rod 36, the first bearing element 50 is displaced toward the lock face 46, whereby the sealing element 26 is raised from the lowered position.

[0044] The contact section 47 of the first bearing element 50 extends in the assembled state along the longitudinal direction 38 of the door leaf underside 30 in the direction of the drive rod 36 (cf. Fig.1 ). The first bearing element 50 rests with its contact section 47 against the spacer 42 (with the drive mechanism 34 preloaded and the locking device 20 not yet unlocked). Optionally, an adjustment device can be provided on the contact section 47, as described above.

[0045] A coupling rod 54, 56 is pivotally mounted on each of the bearing elements 50, 52 and preloaded relative to the respective bearing element 50, 52 by means of a spring 58, 60. The coupling rods 54, 56 are each pivotally coupled to the sealing element 26 at their free ends (the end facing away from the bearing element 50, 52). In the 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 coupling rod 54, 56.

[0046] 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 loose 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 loose bearing. By being acted upon by the tappet 40, the second bearing element 52 can be displaced along the longitudinal direction 38 of the door bottom seal 24. In the 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).

[0047] The second bearing element 52 is preloaded by a spring element 62, which applies a force to the second bearing element 52 along the longitudinal direction 38 of the door leaf underside 30 away from the drive rod 36 (towards the hinge side 16). The spring element 62 is coupled at one end at least indirectly to the door bottom seal 24 or the door leaf 14 and at the other end to the second bearing element 52. In the example, a stop 63 is immovably fastened in the door bottom seal 24 and is arranged on the side of the second bearing element 52 facing away from the tappet 40 or on the side of the second bearing element 52 facing the drive rod 36. The spring element 62 is arranged between the stop 63 and the second bearing element 52. In the example, the spring element 62 is designed as a compression spring.

[0048] As an alternative to the design of the drive mechanism 34 described here, it can have a leaf spring device (instead of coupling rods and springs), as described above.

[0049] The drive 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.2). The first section 64 and the second section 66 each have a rear engagement section 68, 70, via which the first section 64 and the second section 66 engage one another. A freewheel section 72, 74 is connected to the rear engagement section 68, 70, so that the first section 64 and the second section 66 of the drive rod 36 are movable relative to one another. Thus, starting from the position in which the rear engagement sections 68, 70 (e.g., under tension load) are in positive contact with one another (maximum length of the drive rod 36), the two sections 64, 66 can be pushed in relative to one another over a certain distance (length of the freewheel section 72, 74) (the drive rod 36 shortens).

[0050] A compression spring 76 is provided, which at one end bears directly or indirectly against the door leaf 14 or the lock face 46 and at the other end bears against the second section 66 of the drive rod 36 or the spacer 42 (cf. Fig.1 and 2 ). The compression spring 76 pretensions the second section 66 of the drive rod 36 relative to the door leaf 14 or the first section 64 (in the extension direction). In the example, the compression spring 76 is arranged in a corresponding receptacle 77, which is fastened to the face plate 46 by means of a screw 78.

[0051] 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 screwing. In the example, the support profile 25 has a U-shaped cross-section, the open end of which is oriented toward the bottom 32 (closed profile side facing the underside of the door leaf). The support profile 25 has guide sections inside it for guiding the bearing elements 50, 52 (not shown).

[0052] The sealing element 26 has a sealing body 27 and a sealing lip 29 attached thereto (cf. Fig.1 ). The sealing body 27 can be formed as an extruded profile, for example, 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 fastened. The sealing lip 29 can be made of plastic or rubber.

[0053] The locking device 20 can have a main lock (not shown) that can be actuated via a door handle and / or a locking cylinder and is coupled, in particular via a lock mechanism, to the drive rod 36, so that the drive rod 36 can be driven upon actuation of the main lock. The main lock can have a lock latch and / or a lock bolt as locking elements (not shown).

[0054] The locking device 20 may have one or more secondary 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 a locking element. The secondary lock 23 is coupled to the main lock, so that the secondary lock 23 can be actuated by means of the main lock (not shown), in particular for unlocking the locking device 20.

[0055] The operation of the device is explained with reference to Fig.1 to Fig.5 explained in more detail.

[0056] 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. Due to the action of the plunger 40 on the drive mechanism 34, the latter is pretensioned toward the drive rod 36 or the opposite hinge side 22 (springs 58, 60 are tensioned). The spacer 42 is located in the free space 44 between the lock face 46 and the contact section 47 of the first bearing element 50.

[0057] If the locking device 20 is unlocked when the door leaf 14 is in the closed position, e.g., by operating a door handle of the main lock, the drive rod 36 is retracted or raised by the locking device 20, whereby the rear engagement sections 68, 70 engage behind one another and the sections 64, 66 of the drive rod are raised. As a result, the spacer 42 is pulled out of the free space 44 (see Fig. Fig.3 ). Since the drive mechanism 34 is under preload, the first bearing element 50 is displaced toward the drive rod 36 or the lock face 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.

[0058] Would, based on the Figure 3shown position of the door leaf 14, but the locking device 20 (without opening the door leaf 14), for example by releasing the door handle (cf. Fig.4 ), are brought into the locked position, the section 64 of the drive rod 36 moves relative to the section 66 of the drive rod 36, in that the rear grip sections 68, 70 move relative to one another along the freewheel sections 72, 74 (cf. Fig.2 ). The spacer 42 cannot penetrate into the free space 44 because the plunger 40 rests against the door frame 12 and still acts on the drive mechanism 34, so that a corresponding preload is created and the contact section 47 of the first bearing element 50 projects into the free space 44 (cf. Fig.4 ). The spacer 42 cannot thus penetrate into the free space 44. The sealing element 26 is in the raised position.

[0059] Figure 5shows a state in which the door leaf 14 following an unlocking of the locking device 20, whereby the first bearing element 50 is displaced towards the drive rod 36 or the lock face 46 and the sealing element 26 is raised (in Figure 3 situation shown) was opened or pivoted (open position of the door leaf 14; door frame 12 is not shown here).

[0060] When the door leaf 14 is pivoted into the open position, the tappet 40 is relieved of pressure and, depending on the door opening angle, comes out of contact with the door frame 12. The preload or prestressing force applied by the tappet 40 to the drive mechanism 34 is thus reduced, possibly even reduced to 0. As a result, the force of the spring element 62 (compression spring), which displaces the second bearing element 52 away from the drive rod 36 or towards the hinge side 16, predominates. 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 displaced 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 contact 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.

[0061] If the door leaf 14 is moved from the Figure 5 shown position into the closed position, the plunger 40 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 or away from the hinge side 16, whereby the spring element 62 (compression spring) is compressed. The first bearing element 50 comes into contact with the contact section 47 with the spacer 42 and the sealing element 26 is displaced into the lowered position. This then results in the Figure 1 illustrated situation in which the door leaf 14 is in the closed position, the locking device 20 is not actuated (locked) and the sealing element 26 is in the lowered position.

Claims

1. Door assembly (10) comprising a door frame (12) and a door leaf (14) which is pivotally mounted on the door frame (12) and can be pivoted 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 drop seal (24) having a movable sealing element (26) for sealing a gap (28) on the underside (30) of the door leaf toward the floor (32), wherein the sealing element (26) can be moved, by means of a drive mechanism (34), between a raised position and a lowered position relative to the underside (30) of the door leaf, wherein the locking device (20) has a drive rod (36) and the locking device (20) is coupled to the drop seal (24) via the drive rod (36) such that when the locking device (20) is unlocked in the closed position of the door leaf (14), the sealing element (26) is raised from the lowered position before the door leaf (14) is pivoted, wherein the drop seal (24) is fastened to the underside (30) of the door leaf, wherein the drive mechanism (34) has a first bearing element (50) and a second bearing element (52), wherein the bearing elements (50, 52) are each coupled to the sealing element (26) and movably mounted in the drop seal (24) so that the bearing elements (50, 52) can each be moved along the longitudinal direction (38) of the underside (30) of the door leaf, wherein the drive mechanism (34) is preloaded such that the sealing element (26) is forced into the raised position, characterized in that a tappet (40) protrudes at least partially from the end of the drop seal (24) facing away from the drive rod (36), wherein the tappet (40) comes into contact with the door frame (12) when the door leaf (14) is pivoted into the closed position, and is subjected to a force thereby, as a result of which the tappet (40) acts on the drive mechanism (34) such that the sealing element (26) is moved into the lowered position and the drive mechanism (34) is preloaded in the direction of the drive rod (36).

2. Door assembly (10) according to claim 1, characterized in that a spacer (42) is fastened to the free end of the drive rod (36) facing the drop seal (24), which spacer, when the door leaf (14) is in the closed position, is arranged in a free space (44) between a lock faceplate (46) of the locking device (20) and a contact portion (47) of the first bearing element (50) facing the drive rod (36), wherein the drive rod (36) is coupled to the locking device (20) such 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) toward the drive rod (36), the first bearing element (50) is moved toward the lock faceplate (46), wherein the sealing element (26) is raised from the lowered position.

3. Door assembly (10) according to claim 1 or 2, characterized in that a coupling rod (54, 56) is pivotally mounted on each of the bearing elements (50, 52) and is preloaded toward relative to the relevant bearing element (50, 52) by means of a spring (58, 60), wherein the coupling rods (54, 56) are each pivotally coupled to the sealing element (26) at the free end.

4. Door assembly (10) according to any of the preceding claims, characterized in that the second bearing element (52) is arranged in a portion of the drop seal (24) facing away from the drive rod (36) and can be moved along the longitudinal direction (38) of the drop seal (24) by being acted upon by the tappet (40).

5. Door assembly (10) according to any of the preceding claims, characterized in that the second bearing element (52) is preloaded by means of a spring element (62) which subjects the second bearing element (52) to a force along the longitudinal direction (38) of the underside (30) of the door leaf, away from the drive rod (36).

6. Door assembly (10) according to any of claims 1, 2, 4 or 5, characterized in that the drive mechanism (34) has a spring device, in particular a leaf spring device, wherein the spring device is coupled at one end to the first bearing element (50), is coupled at the other end to the second bearing element (52) and is coupled between its two ends to the sealing element (30).

7. Door assembly (10) according to any of claims 2 to 6, characterized in that the drive rod (36) has a first portion (64) which is coupled to the locking device (20), and a separate, second portion (66) to which the spacer (42) is fastened, wherein the first portion (64) and the second portion (66) each have an engagement portion (68, 70) via which the first portion (64) and the second portion (66) engage behind one another, wherein a freewheel portion (72, 74) is connected to the engagement portion (68, 70) in each case, so that the first portion (64) and the second portion (66) of the drive rod (36) are movable relative to one another.

8. Door assembly (10) according to any of claims 2 to 7, characterized in that a compression spring (76) is provided, which, at one end, rests directly or indirectly on the door leaf (14) or on the lock faceplate (46) and, at the other end, rests on the second portion (66) of the drive rod (36) or on the spacer (42).

9. Door assembly (10) according to any of the preceding claims, characterized in that the drop seal (24) has a carrier profile (25), which is fastened to the underside (30) of the door leaf.

10. Door assembly (10) according to any of the preceding claims, characterized in that the sealing element (26) has a sealing body (27) and a sealing lip (29) attached thereto.

11. Door assembly (10) according to any of the preceding claims, characterized in that the locking device (20) has a main lock which can be actuated via a door handle and / or a lock cylinder and is coupled to the drive rod (36) so that the drive rod (36) can be driven when the main lock is actuated.

12. Door assembly (10) according to claim 11, characterized in that the main lock has a lock latch and / or a lock bolt as locking elements.

13. Door assembly (10) according to any of the preceding claims, characterized in that the locking device (20) has one or more secondary locks (23) which are coupled to the drive rod (36), wherein the secondary locks (23) each have a latch bolt (25) and / or a pivot bolt.