DE102020133393A1 - Door leaf, plastic hollow profile and method for subsequent production of a door leaf - Google Patents

Abstract

The invention relates to a door leaf for a front door (100) comprising a door frame made from plastic hollow profiles (20), the visible surfaces (21, 22) of the plastic hollow profiles (20) being covered on at least one of the two door sides with a cover plate (40, 40'), are preferably covered with a cover plate (40) forming the entire visible surface of the door leaf, in which at least one fastening recess (25) is arranged in the covered visible surface (22) of at least one of the plastic hollow profiles (20), preferably all plastic hollow profiles (20) forming the door frame at least one push element (30) is fastened in the at least one fastening recess (25) and is slidably mounted in the fastening recess (25), preferably slidably mounted in two mutually perpendicular directions, the cover plate (40) being mounted indirectly via the at least one sliding element (30) is connected to the door frame, in particular in a materially bonded manner pushing element (30). The invention also relates to a plastic hollow profile for forming a door frame and a method for the subsequent production of a door leaf from an existing door leaf.

Description

The invention relates to a door leaf for a front door comprising a door frame made of plastic hollow profiles, the visible surfaces of the plastic hollow profiles being covered on at least one of the two sides of the door with a cover plate, preferably with a cover plate forming the entire visible surface of the door leaf. The invention also relates to a plastic hollow profile for forming a door frame and a method for the subsequent production of a door leaf from an existing door leaf.

In such generic door leaves, a door frame is first formed from hollow plastic profiles. Insulating material can preferably be arranged between the plastic hollow profiles, in particular in relation to their thickness in the direction between the inside and outside of the door leaf. With such door leaves, it is known to date to connect at least one of the cover plates, e.g. only the outer cover plate facing the outside, to the plastic hollow profiles, in particular also to an insulating material between the profiles, in a shear-resistant manner, e.g. by screwing or gluing.

On the other side, in particular the inside of the room, the cover plate can also be fastened or at least one cover plate can be provided which is only fastened to the insulating material and is preferably arranged between the plastic hollow profiles like the insulating material. The visible surfaces of the plastic hollow profiles that are not covered by the cover plate on such a side can be covered by facings that are visually identical to the cover plate.

The visible surfaces of the plastic hollow profiles are understood to mean the surface areas that lie parallel to the plane of the cover plate or the plane of the door leaf. These surface areas of the plastic hollow profiles thus point outwards to the surroundings or inwards to the room. The visible surfaces are thus part of the outer and/or inner profile walls of the respective plastic hollow profile.

Since front doors and especially their door leaves are usually exposed to different ambient temperatures or weather conditions on their two surfaces, the different thermal expansions of the inner and outer door frame and the respective cover panel result in stresses that can lead to deformation of these doors. In particular, cover panels that extend over the entire height and width of the door panel can experience severe dimensional changes due to temperature or weather conditions, e.g. moisture-related, and can be transferred to the plastic hollow profiles of the frame construction. As a result, it can happen that the doors no longer close, or only with difficulty, or no longer close properly.

The stresses in the door are usually also transferred to the adjoining areas, which are also undesirable there and can lead, among other things, to leaks due to the then defective attachment of seals.

The effect can occur in particular when the door or the door leaf is exposed to solar radiation, since the door or the cover plate of the door leaf is then very strongly heated on the outside. The warping of the front door due to the temperature difference can cause the door leaf to curve towards the warmer side in the event of large temperature differences. Such behavior is also referred to as "bowling".

Plastic has a higher twistability, so permanent distortion is possible here due to the soft material. This results in the disadvantage of deformation of PVC profiles due to thermal expansion caused by internal stresses as a result of different temperature effects, which must be eliminated / counteracted.

In order to eliminate these effects or at least to significantly reduce them, various proposals have already been made.

The utility model DE 203 14 017 U1 proposes a filler panel which is provided on one side with a stress-absorbing balancing layer arranged between the cover layer and the core. The panel of a front door is designed in such a way that the warping of the panel due to temperature differences is substantially reduced. The compensating layer has a correspondingly stabilizing effect on the infill panel, since it only absorbs stresses or forces when the infill panel warps due to temperature differences. However, the filling panel of the type described here cannot prevent thermal influences between the cover panel and door frame profiles, and these problems do not arise here. Thermally induced movement of a cover layer in relation to a filling of insulating material also appears to be less critical than thermally induced movements in relation to the door frame profiles, since insulating materials are inherently flexible.

The invention is therefore based on the object to improve a door leaf of the type mentioned and to be used for plastic hollow profiles so that due to the different Temperature influences on the front door occurring deformations and resulting stresses are at least reduced, preferably eliminated. In particular, a thermally induced influence of a large-area cover plate of a door leaf on the frame construction of the door leaf should be reduced or preferably avoided.

This object is achieved with a plastic hollow profile for the door frame construction of a door leaf, in which at least one fastening recess is arranged in the visible surface to be covered by a cover plate of the door leaf, in particular in the wall of the plastic hollow profile that encompasses the visible surface, with at least one fastening recess being provided in the at least one fastening recess , Preferably exactly one pusher element is fastened, that is displaceably mounted in the fastening recess, preferably displaceably mounted parallel to the visible surface in two mutually perpendicular directions. The invention can then provide that, in the case of a door leaf formed from such plastic hollow profiles, a cover plate of a door leaf is fastened to the at least one sliding element.

The result is a door leaf according to the invention, in which at least one fastening recess is arranged in the visible surface covered by the cover plate, at least one of the hollow plastic profiles forming the door frame, preferably all hollow plastic profiles forming the door frame, with at least one push element being fastened in the at least one fastening recess, that is displaceably mounted in the fastening recess, preferably displaceably mounted in two mutually perpendicular directions, the cover plate being connected indirectly to the door frame via the at least one sliding element.

The cover plate can be fixed to the respective push element in a shear-resistant manner, i.e. fixed in place, e.g. by screwing or preferably by gluing or other material connection. A displaceability between the cover plate and the plastic hollow profile then results from the displaceable mounting of the respective pusher element in the plastic hollow profile.

The respective pusher element is preferably mounted in the plastic hollow profile in such a way that it cannot move in a direction perpendicular to the visible surface of the plastic hollow profile, or only within a flexibility of the material.

A named fastening recess can be designed as an opening in the visible profile wall of the plastic hollow profile, which delimits/covers a hollow chamber. The concept of the hollow chamber is intended to include the fact that the hollow chamber in an individual profile which is not yet connected to others to form a frame is open to the environment in the longitudinal direction of the profile, ie at both of its ends. At least in the cross section perpendicular to the longitudinal extension, such a hollow chamber results in a closed cross section.

Such a fastening recess can already be introduced into a plastic hollow profile during the manufacture thereof, ie at a point in time before the actual door leaf is manufactured. As will be described later, this is also possible retrospectively with an existing door leaf.

Regardless of whether a door leaf of the type according to the invention is produced originally or subsequently from an existing door leaf, the invention opens up the advantage that the provided sliding element allows different thermal expansion of the cover plate on the inside of the building and the cover plate on the outside of the building, or that thermal expansion of the at least one cover plate is opposite the plastic profiles of the door frame is possible without causing tension between the cover plates or the cover plate and the door frame. The cover plate can make any changes in length in any possible direction parallel to the plane of the cover plate in relation to the hollow plastic profile, since the cover plate displaces the respective sliding element to which the cover plate is attached in the respective hollow plastic profile. There is therefore no effect of the cover plate dimensional change on the plastic hollow profile.

The sliding element for the front door or the door leaf also has a deformation-reducing effect if the plastic profiles are deformed due to temperature differences. Stresses both in the transverse and in the longitudinal direction of an element (cover plate / hollow plastic profile), in particular parallel to the plane of the cover plate, are diverted into the shear element without being transferred to the other element (hollow plastic profile / cover plate).

The sliding element thus assumes the function of equalizing tension, with the aim that tension is not transferred to the frame construction of the door. The front door is thus protected from weather-related deformations.

The invention can provide for the plastic hollow profiles of the door frame, which are later assembled to form the door leaf or door leaf, to be machined on the visible surface on the outside of the building and/or on the inside of the building are preferably machined, eg drilled or milled.

In principle, a fastening recess can have any shape. For example, the fastening recess can form a round opening or a square opening in the profile wall of the plastic hollow profile that includes the visible surface.

It can be provided, for example, that in at least one of the plastic hollow profiles, preferably in several or all, several fastening recesses spaced apart from one another, in particular in the direction of the longitudinal extension of the plastic hollow profile with a distance, preferably an equidistant distance, are arranged next to one another, whereby in each fastening recess at least one preferably exactly one pusher element is displaceably mounted. In such an embodiment, a cover plate can be connected to the hollow plastic profile indirectly via this at a number of discrete locations, where there is a sliding element in each case, or can be connected in the finished door leaf.

A fastening recess can also extend in a longitudinal direction, e.g. in the sense of a slot in the visible surface. Such a fastening recess can form a fastening groove in connection with the edge of the recessed profile wall which surrounds the recess. Such a groove can preferably extend in the longitudinal direction of the plastic hollow profile, but also perpendicular thereto, or in any other direction. In a single plastic hollow profile that is not yet connected to other profiles, such a fastening groove can be open at the end of the profile. The opening can, for example, be in the miter cutting plane of the hollow plastic profile. With such a fastening groove, there are thus two opposing edges of the groove, in particular which can be formed on the remainder of the profile wall encompassing the visible surface.

The groove edges or generally edges of the fastening recess preferably have a thickness according to the opened profile wall and, viewed at least in cross section, form opposite guide webs for a respective push element, on which the push element rests displaceably, in particular with the push element encompassing these guide webs. For this purpose, a pusher element can have one groove, e.g. surrounding the pusher element, or two opposing grooves open in opposite directions, with a said guide web lying in such a groove.

In the preferred extension of the fastening groove in the longitudinal direction of the profile, the invention can provide that several grooves are arranged one behind the other at a distance, in each of which at least one push element, preferably exactly one single push element, is slidably fastened or preferably that in a plastic hollow profile exactly one Fastening groove is provided, in particular which extends over the entire length of the plastic hollow profile, wherein preferably in such a single fastening groove at least one thrust element, preferably exactly a single thrust element is arranged. In the longitudinal direction, this single thrust element can have the length of the plastic hollow profile minus the displacement path to be taken into account in this direction.

The invention can provide, particularly in connection with a fastening groove, that the visible surface is completely removed except for areas forming lateral guide webs. Alternatively, it is possible to produce the hollow plastic profiles forming the door frame directly in the desired shape with a fastening recess/groove.

Provision can be made for the pushing element to be pushed from the open end into the existing fastening groove, in particular in such a way that the open visible surface is closed, preferably the stability of the profile is restored.

In the case of a fastening recess of a general type, in particular one that has a peripherally closed edge, it can be provided that the push element is inserted into the plastic hollow profile from the visible side. For example, a thrust element can be attached to the fastening recess in a direction perpendicular to the visible surface and pressed into it, in particular with reversible deformation of the edge of the fastening recess and/or the thrust element at least on its side facing the recess.

In one possible embodiment, the invention can provide that the cover plate is connected to the plastic hollow profiles in some areas in fixed bearings and in some areas (in other areas) in loose bearings. In the fixed bearing areas, the cover plate can preferably be screwed or glued, in particular directly to the plastic hollow profile or indirectly via spacers that simulate the distance between plate and plastic hollow profile at the location of a thrust element.

Accordingly, according to the invention, the at least one cover plate covering the visible surfaces of the hollow plastic profiles is partially und slidably connected to the frame-forming plastic hollow profiles and partially indirectly slidably connected to the plastic hollow profiles via push elements. The thrust elements thus form the floating bearing.

Provision can be made, for example, for the cover plate to be immovably connected, preferably by gluing, to a subset of all the frame-forming plastic hollow profiles, preferably to a single vertically or horizontally running plastic hollow profile.

Furthermore, the cover plate can also be immovably connected to an insulating material arranged between the plastic hollow profiles, more preferably with the area or areas between the plastic hollow profiles being/are filled with the insulating material, in particular with the insulating material being bonded to the plastic profiles, preferably by gluing .

The invention can provide that the respective thrust element is designed as a plastic element, comprising two spaced, preferably at least partially parallel spaced plates, which are connected by at least one spacer running between them in the direction of spacing, with the plates between them at their peripheral edge at least one Form groove, of which the opening edge / guide bar of the at least one fastening recess is enclosed.

It is particularly preferred if at least one hollow chamber is formed in the thrust element between the plates, in particular in connection with the at least one spacer. Such a hollow chamber can produce an improved insulating effect of the thrust element, which is particularly advantageous since the opening of the visible surface may reduce an insulating effect of the hollow chamber of the hollow plastic profile lying underneath. In this way, the thrust element can compensate for this lost insulating effect.

As already described above, a hollow chamber in the thrust element is also understood to mean when the hollow chamber is open at two ends that are spaced apart in a longitudinal direction of the thrust element. The invention can provide for these ends of the thrust element to be closed, e.g. by means of wall areas or plugs which are inserted into the open ends of the hollow chamber.

The invention can also provide that an insulating material is introduced into a hollow chamber of the sliding element. This can particularly preferably be a foaming material that is injected into the hollow chamber, e.g. a polyurethane foam. Injection can be through either or both open ends.

The invention can also provide for the areas in the plastic hollow profile of the hollow chamber opened by the at least one fastening recess to be filled with an insulating material, in particular after the creation of the at least one fastening recess or groove. This can preferably be a resilient insulating material, e.g. insulating wool, such as glass wool or rock wool, in particular such that the insulating material can adapt well to the sliding element used and does not impede mobility.

As far as a thrust element is viewed in cross-section, its plates form two main webs spaced apart from one another. These main webs are connected to one another by intermediate webs formed by the at least one spacer, preferably with the main webs having the greater wall thickness/larger cross-section than the intermediate webs.

The main webs are preferably parallel next to one another at least in regions, in particular in a central region of their overall extension. A guide groove is formed between the free ends of the two main webs, in particular on each end region of the main webs, in which a guide web forming the edge of the opening of the fastening recess, in particular the fastening groove, lies. The depth of the guide groove corresponds, preferably at least, to the thickness of the profile wall on the outside of the building or on the inside of the building that encompasses the visible surface of the plastic hollow profile. Both free ends preferably make contact with the guide web or edge of the fastening recess, preferably thereby avoiding play of the pusher element perpendicular to the visible surface.

The thrust element can preferably be designed as an elongate plastic hollow profile, in particular as an extruded plastic hollow profile.

It has turned out to be advantageous that the original visible surface of the plastic hollow profile acts as a guide profile after the, preferably machining, processing, in which the pushing element rests and is displaceably guided. The sliding element then forms at least part of the new visible surface of the door frame profile.

Provision is preferably made for the guide webs on the plastic hollow profile to protrude at least 10% and at most 90% into the guide groove on the push element. This ensures adequate fixing of the pusher element in the plastic hollow profile and at the same time there is sufficient space to allow the sliding movement of the pusher element and the cover plate connected or to be connected to it.

It is also advantageous for the invention if the opposite sliding elements have a gap between them at the corners of the frame. This is particularly intended for push elements which are the only ones to extend in a fastening groove of the plastic hollow profile over its entire length except for the gap (or twice the gap dimension).

Furthermore, the invention can provide that, viewed in cross section, the main web of the thrust element located in the plastic hollow profile is set back in length at the location of at least one of its free ends, preferably at the location of both free ends, compared to the free end of the other main web. This makes it easier to insert a push element into the opening through the fastening recess/groove.

More preferably, the main web of the pusher element located in the plastic hollow profile can run at least partially in the direction of the other main web at the location of at least one of its free ends, preferably both free ends, in particular from a course previously parallel to the other main web, e.g. in the area of the center of the main web, be bent towards this. This also facilitates assembly through the visible surface, particularly if the distance between the main webs, particularly in the middle area, is greater than the distance between the free ends.

The cover plate on the inside of the building, which forms the inside visible surface of the front door, can only completely cover the insulating material, but preferably not the visible surfaces of the plastic hollow profiles, and is preferably connected to the insulating material in a materially bonded manner, preferably as an adhesive bond.

On the outside of the building, the cover plate covers the insulating material and the plastic hollow profiles of the door frame in particular completely and is cohesively, preferably adhesively, connected both to the insulating material and to the at least one sliding element, preferably to all sliding elements used. Since the cover plate on the outside of the building is usually exposed to greater temperature fluctuations, it can undergo the associated dimensional changes without transferring forces to the plastic hollow profiles of the frame, since the cover plate is connected to the respective profile via the sliding element or elements. In a preferred embodiment, the cover plates consist of aluminium, plastic or GRP plates or composite plates. It is provided that the frame accommodating the at least one push element is preferably made of plastic hollow profiles.

The invention can provide that when the cover plate is installed, the dead weight of the cover plate bears at least predominantly on the lower plastic hollow profile of the door frame. The cover plate can be immovably attached to these and slidably to all others via at least one push element. In general, the cover plate can be fixed to a single plastic hollow profile of the frame invariably and can be slidably fixed in sliding elements to all the others.

The invention also opens up the possibility, already mentioned at the outset, of a method for the subsequent production of a door leaf from an existing door leaf according to claim 15.

For this purpose, the design provides that a front door can also be retrofitted after the conventional design, without the use of stress-compensating sliding elements. Even in the event of damage, the front door can be retained in this way and the front door or its door leaf can be repaired using the variant described below.

For this purpose, for example, the weather-side cover plate of the front door is removed and the exposed frame surfaces are then milled, removing material, so that a recess is created in each plastic hollow profile that takes on the function of a fastening groove. The recesses of all plastic hollow profiles can merge into one another in the corner areas. In such a case, a frame-shaped, self-contained fastening recess or fastening groove results.

The material is cut back to such an extent that longitudinal guide webs on both sides are retained. Since it is not possible to slide the free profile ends onto the fully welded door frame here, the sliding elements for retrofitting are designed in such a way that they can be inserted into the recess from the outside.

The two main webs are at a greater distance from one another in an area between their free ends, in particular a central area which is arranged as at the free ends and the free ends of the main web on the inside of the building, which is therefore located in the plastic hollow profile, end in a course angled towards the other main web, each in a clamping area. The opposite free ends of the main web on the outside of the building and the main web on the inside of the building can preferably have ends of the same length on one side. On the other hand, the free end of the main web running on the inside of the building is shorter than the free end on the outside of the building.

The edge of the pusher element with the free ends of the pusher element of the same length can be pushed onto a guide bar and the pusher element pivoted into the fastening groove to close it. The free end of the shortened main web on the inside of the building can swivel past the guide web. Finally, the push element is securely seated by a transverse push by the fitter, so that the guide bar is firmly fixed between the free end of the main bar on the outside of the building and the inner clamping area of the shortened main bar on the inside of the building.

The construction of the free ends of the main webs of the pusher element is preferably dimensioned/designed/designed in such a way by the tapering/oblique profile progression up to the clamping area that the open ends form the guide groove between them in such a way that the guide webs are at least 10% and at most 90% % protrude into the guide groove. This ensures a minimum gap, which the sliding element uses as a compensation path in order to compensate for the stresses caused by the effects of temperature.

The invention is explained in more detail below with reference to the drawings.

• 1 zeigt eine Haustür 100, bestehend aus Blendrahmenprofil 10 und einem Türrahmenprofil 20 mit Deckplatten 40, 40' und zwischenliegendem Dämmmaterial 50 im Schnitt und in geschlossenem Zustand, mit eingeschobenem Schubelement 30
• 1a zeigt eine Detailansicht des montierten Schubelements 30 zu 1 im Schnitt,
• 1 b zeigt eine weitere Ausführungsform in der Detailansicht des montierten Schubelements 30 im Schnitt
• 2 zeigt eine Haustür 100 nach 1, in einer weiteren Ausführungsform, bei der der Blendrahmen 10 beidseitig mit Aluminiumvorsatzschalen 60 beplankt ist,
• 3 zeigt eine Haustür 100 nach 1 in der Draufsicht im Gehrungsbereich
• 4 zeigt eine Haustür 100 nach 1 in der isometrischen Ansicht im Gehrungsbereich.

The figures show in detail:

• 1 shows a front door 100, consisting of a window frame profile 10 and a door frame profile 20 with cover plates 40, 40' and insulating material 50 in between, in section and in the closed state, with the sliding element 30 pushed in
• 1a shows a detailed view of the assembled pusher element 30 1 on average,
• 1 b shows a further embodiment in the detailed view of the mounted sliding element 30 in section
• 2 shows a front door 100 after 1 , in a further embodiment, in which the window frame 10 is planked on both sides with aluminum facing shells 60,
• 3 shows a front door 100 after 1 in the plan view in the miter area
• 4 shows a front door 100 after 1 in the isometric view in the miter area.

In 1 a house door 100 comprising a window frame profile 10 and a plastic hollow profile 20 forming the door frame with cover plates 40, 40' and with intermediate insulating material 50 is shown in section and in the closed state according to the invention. The door leaf according to the invention results from the frame with cover plates and insulation.

This version for a front door can be seen as an example. The invention is not limited to the illustrated embodiment. The outer frame 10 can consist of a plastic hollow profile with a steel reinforcement 11. The plastic hollow profile 20 has a fastening groove 25 in its outer visible surface as a fastening recess, e.g. which is formed by milling away the originally closed visible surface 22 of the plastic hollow profile on the outside of the building or originally formed during the manufacture of the profile became. The visible surface 22 on the outside of the building, which is open in the longitudinal direction, forms an undercut groove, which preferably extends at least in certain areas, preferably essentially over the entire length of a plastic hollow profile 22, preferably on all four circumferential plastic hollow profiles 22. The groove can open up an original hollow chamber in the plastic hollow profile .

The push element 30 is pushed onto the guide webs 23, 24 delimiting the fastening groove 25, which are part of the visible surface 22, and forms a form fit with the plastic hollow profile 20. The pushing element is preferably cut to length at 45 degrees at the ends. More preferably, it extends almost over the entire length of a door frame profile, ie in particular over the length of a door frame profile minus a (possibly twice) gap dimension for forming an expansion gap 26 between adjacent push elements in the corners. The pushed-in sliding elements therefore do not meet flush in the corners, but are spaced apart from one another by a gap 26 .

The sliding element 30 is designed in such a way that it rests in the fastening groove 25 so that it can be displaced in at least one direction, preferably two directions, in particular in two directions that correspond to the direction of longitudinal extension and a direction perpendicular thereto of the respective door frame profile, i.e. preferably in a plane parallel to the face. Dimensional changes associated with the respective thrust element 30 Cover plate 40 are therefore not transferred to the plastic hollow profiles, since the position of the sliding element in the door frame changes accordingly by displacement in the fastening groove 25 in the event of a dimensional change.

A distortion of the door frame 20 due to temperature differences can be minimized or preferably prevented. In the production of a door according to the invention, the cover plate 40 on the outside of the building, in particular after the introduction of the insulating material into the door frame 100, is cohesively connected, preferably glued, to the at least one sliding element preferably mounted in each of the door frame profiles. A material connection, e.g. by gluing, can preferably also be provided between the cover plate 40 and the insulating material 50.

The combination of a cover plate 40, which is usually made of aluminum, for example, with a PVC blind frame profile 10 can optionally be provided with decorative foils in order to achieve the same color for visual uniformity.

1a shows a detailed view of the mounted pusher element 30 1 on average. In the cross-sectional view, the thrust element 30 has two main webs 31, 32 spaced parallel to one another, which are connected to one another via at least one intermediate web 33, preferably via a plurality of intermediate webs 33 extending between the main webs 31, 32. As a result, the pushing element can have a ladder-like shape in cross section. In the three-dimensional element, the main webs correspond to the plates mentioned and the intermediate webs to the spacer element, which here also encloses two hollow chambers in the thrust element. The hollow chambers can be filled with an insulating material, for example foamed.

The free ends 34, 34', 35, 35' of the main webs form a guide groove 36 between them, in which the guide webs 23, 24 of the profile wall of the plastic hollow profile including the visible surface lie, preferably with a positive fit. The free ends of the main webs of the pusher element thus engage around the guide webs 23, 24. As a result, the pusher element is attached to the guide webs 23, 24 in a displaceable manner.

It is preferably provided that the distance between the two intermediate webs located furthest to the outside in the push element is smaller than the distance between the end faces of the opposite guide webs 23, 24 pointing towards one another. The difference between these distances defines the possible displacement path transverse to the longitudinal direction of extension of the door frame profile. The displacement path in the longitudinal direction is preferably defined by the distance between the push elements that are adjacent in the corners.

1b shows a further embodiment in the detailed view of the mounted sliding element 30 in section. In the case of retrofitting or repairs, this embodiment provides a variant of the sliding element that can be pivoted into the existing door frame.

The two main webs 31, 32 are arranged at a distance from one another by the intermediate webs which is greater than the thickness of the guide webs 23, 24, with the free ends of the main web 34", 35" on the inside of the building being angled towards the opposite main web, in particular so that at the narrowest point between the straight free end of one main web 32 and the angled free end of the other 31 there is a clamping area 37, 37' in cross section, or a clamping line over the extension of the push element. It can preferably be provided that, viewed in the direction perpendicular to the longitudinal extension of the push element, the opposing free ends of the main web 34 on the outside of the building and the main web 34" on the building inside are of the same length on one side of the push element and on the other side the free end 35 on the building side " is shorter than the free end 35 on the outside of the building.

The edge or guide groove of the pusher element with the free ends of the pusher element 34, 34" of the same length is pushed onto a guide bar 23 and the pusher element 30 is pivoted into the fastening groove to close it. The free end of the shortened main bar 35" on the inside of the building can be attached to the guide bar 24 pan past. Finally, the pusher element is securely seated by a transverse push by the fitter, so that the guide bar 24 is firmly fixed between the open end of the main bar 35 on the outside of the building and the inner clamping point 37' of the shortened main bar 35" on the inside of the building.

The construction of the free ends of the pusher element 34", 35" is preferably dimensioned/designed by the course pointing in the direction of the opposite main web up to the clamping areas 37, 37' such that the free ends 34", 35" hold the guide groove 36 between develop in such a way that the guide webs 23, 24 protrude into the guide groove 36 by at least 10% and at most 90%. The guide groove 36 is preferably between an intermediate web and the free end of the (possibly shorter) main looked at. This ensures a minimum gap between the guide bar 23, 24 and the intermediate bar, which the pusher element 30 uses as a compensation path in order to compensate for the stresses resulting from the effects of temperature.

2 10 shows a frame system 100. FIG 1 , in a further embodiment, in which the outer frame is clad on both sides with aluminum shells 60. This creates a decisive advantage of a uniform overall appearance of the front door, since the cover plate 40 and the aluminum facing shell 60 of the frame 10 are made of aluminum. This results in a further option of powder coating in the full color spectrum, which can be used on aluminum surfaces both for the cover plate 40 and for the facing shell 60 on the frame profile 10, and leads to an attractive overall appearance with visible surfaces that are uniform in color and feel.

the 3 and 4 show a front door 100 after 1 in the plan view in the corner or miter area. The provided sliding element allows different thermal expansion of the cover plate on the inside of the building and the cover plate on the outside of the building, without stresses occurring as a result. In the longitudinal direction, a displacement path results here in the pushing element, which corresponds to the gap width between the pushing elements 30 lying opposite one another in the corners, viewed in the longitudinal direction of the respective pushing element 30 .

The sliding element has a deformation-reducing effect on the front door if the plastic profiles or the cover plates are deformed due to temperature differences. Tensions both in the transverse and in the longitudinal direction are reduced or prevented by the ability to slide between the sliding element and the plastic hollow profile of the door frame.

Reference List

100

front door

10

frame profile

10'

frame

11

steel reinforcement

20

Plastic hollow profile of the door frame

21

Visible surface on the inside of the building

22

Visible surface on the outside of the building

23

Guide bar / edge of the mounting recess

24

Guide bar / edge of the mounting recess

25

Fastening recess/groove

26

gap

27

exterior surfaces

30

sliding element

31

Main walkway on the inside of the building / panel of the sliding element

32

Main walkway on the outside of the building / panel of the sliding element

33

Dividers / spacers

34

free ends

34'

free ends

34"

free ends

35

free ends

35'

free ends

35"

free ends

36

guide groove

37

clamping area

37'

clamping area

40

Cover plates (building inside, building outside)

40'

Cover plates (building inside, building outside)

41

underside of cover plate

50

insulation material

60

aluminum shells

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 20314017 U1 [0010]

Claims (16)

Door leaf for a house door (100) comprising a door frame made of plastic hollow profiles (20), the visible surfaces (21, 22) of the plastic hollow profiles (20) being covered on at least one of the two door sides with a cover plate (40, 40'), preferably with a die cover plate (40) forming the entire visible surface of the door leaf, characterized in that at least one fastening recess (25) is arranged in the covered visible surface (22), at least one of the hollow plastic profiles (20), preferably all hollow plastic profiles (20) forming the door frame, wherein in the at least one fastening recess (25) at least one pusher element (30) is fastened, which is slidably mounted in the fastening recess (25), preferably slidably mounted in two mutually perpendicular directions, wherein the cover plate (40) is mounted indirectly via the at least one Push element (30) is connected to the door frame, in particular cohesively to the shoe element (30). door leaf after claim 1 , characterized in that the at least one fastening recess (25) is designed as a fastening groove (25) in the visible surface (22) of at least one of the plastic hollow profiles (20), preferably all plastic hollow profiles (20) forming the door frame, in particular wherein the at least one Fastening groove (25) extends in the longitudinal direction of the plastic hollow profile (20). Door leaf according to one of the preceding claims, characterized in that in at least one of the plastic hollow profiles (20) there are a plurality of fastening recesses (25) spaced apart from one another, in particular in the direction of the longitudinal extension of the plastic hollow profile (20) at a distance, preferably an equidistant distance, next to one another are, wherein in each fastening recess (25) at least one pusher element, preferably exactly a single pusher element (30) is displaceably mounted. Door leaf according to one of the preceding claims, characterized in that exactly one single fastening groove (25) is arranged as fastening recess (25) in a plastic hollow profile (25) having a fastening recess (25), preferably extending over the entire length of the plastic hollow profile (25) at least one thrust element (30), in particular precisely one single thrust element (30), is arranged in the fastening groove (25), preferably which is mounted in the fastening groove (25) so as to be displaceable in the longitudinal direction of the fastening groove (25) and perpendicular thereto. Door leaf according to one of the preceding claims, characterized in that a fastening recess (25), in particular a fastening groove (25), viewed in particular in cross section, has two opposite guide webs (23, 24) which form part of the visible surface (21, 22) of the plastic hollow profile (20) and which between them at least partially delimit the opening of the fastening recess (25), in particular the fastening groove (25), with each guide web (23, 24) lying in a groove on the push element (30). Door leaf according to one of the preceding claims, characterized in that the area or areas between the hollow plastic profiles (20) is filled with an insulating material (50), in particular which is firmly bonded to the plastic profiles (20), preferably by gluing. Door leaf according to one of the preceding claims, characterized in that the at least one cover plate (40, 40') covering the visible surfaces (21, 22) of the plastic hollow profiles (20) is connected immovably to the frame-forming plastic hollow profiles (20) in some areas and indirectly via push elements in some areas (30) is slidably connected to the plastic hollow profiles (20). door leaf after claim 7 , characterized in that the cover plate (40, 40') is immovably connected, preferably by gluing with: a. a partial number of all frame-forming hollow plastic profiles (20), preferably a single vertically or horizontally extending hollow plastic profile (20) and/or b. an insulating material (50) which is arranged between the plastic hollow profiles (20) and is itself fastened immovably to the plastic hollow profiles (20), preferably in a materially bonded manner. Plastic hollow profile for forming a door frame, characterized in that at least one fastening recess (25) is arranged in the visible surface (21, 22) to be covered by a cover plate (40, 40') of a door leaf, a. preferably in the visible surface (21, 22) a plurality of fastening recesses (25) are arranged spaced apart next to one another in the longitudinal direction of the plastic hollow profile (25), or b. preferably in the visible surface (21, 22) a single extending in the longitudinal direction, as a fastening groove (25) formed fastening recess (25) is arranged, wherein in the at least at least one, preferably exactly one, sliding element (30) is arranged in a fastening recess (25), which is slidably mounted in the fastening recess, preferably slidably mounted in two mutually perpendicular directions parallel to the visible surface (21, 22), in particular wherein on the at least a sliding element (30), a cover plate (40, 40') of a door leaf can be fastened. Door leaf or plastic hollow profile according to one of the preceding claims, characterized in that the push element (30) is designed as a plastic element, comprising two spaced, preferably at least partially parallel spaced plates (31, 32) which run between them in the direction of spacing by at least one spacers (33), the plates (31, 32) forming a groove (36) between them at their peripheral edge, by which the opening edge/guide web (23, 24) of the at least one fastening recess (25) is enclosed. Door leaf or plastic hollow profile according to one of the preceding claims, characterized in that at least one hollow chamber is formed in the push element (30) between the plates (31, 32), in particular in connection with the at least one spacer (33). Door leaf or plastic hollow profile according to one of the preceding claims, characterized in that the push element (30) is designed as an elongate plastic hollow profile, in particular as an extruded plastic hollow profile, in particular which, viewed in cross section, has two main webs (31, 32) which are kept at a distance by intermediate webs (33), wherein between the free ends (34, 34' / 35, 35') of the two main webs (31, 32) a guide groove (36) is formed in which a guide bar (23, 24) forming the edge of the opening of the fastening recess (25), in particular the fastening groove (25), rests, in particular the free ends (34, 34' / 35, 35') make contact with the guide bar (23, 24). . Door leaf or plastic hollow profile according to one of the preceding claims, characterized in that viewed in cross section, the main web (31) of the push element (30) lying in the plastic hollow profile (20) is at the location of at least one of its free ends (34', 35'), preferably both free ends Ends (34 ', 35'), relative to the free end (34, 35) of the other main web (32) is set back in length. door leaf or plastic hollow profile Claim 13 , characterized in that viewed in cross section, the main web (31) of the pusher element (30) lying in the plastic hollow profile (20) at the location of at least one of its free ends (34', 35'), preferably both free ends (34', 35') , at least in some areas in the direction of the other main web (32). Method for the subsequent production of a door leaf according to one of the preceding claims from an existing door leaf, characterized in that the cover plate (40, 40') of the existing door leaf is removed, in at least a partial number of all plastic hollow profiles (20) forming the door frame or in all plastic hollow profiles (20 ) in each case in the visible surface (21, 22) previously covered by the cover plate (40, 40'), at least one fastening recess (25), preferably a fastening groove (25) extending in the longitudinal direction of the respective plastic hollow profile (20), is introduced, preferably by Milling, at least one pusher element (30) is inserted into the respective fastening recess/groove (25), which slides in the fastening recess/groove (25), preferably in two directions perpendicular to one another, and the cover plate (40, 40') of the Existing door leaf or another cover plate at the location of the sliding elements (30) mi can be connected via this to the plastic hollow profile (20). procedure after claim 15 , characterized in that the introduction of the at least one fastening recess/groove (25) in the visible surface (21, 22) opens a hollow chamber of the plastic hollow profile (20) which is located under the profile wall having the visible surface (21, 22).

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