DE29504366U1 - Door with thermally insulated threshold - Google Patents

Description

Description Door with thermally insulated threshold

The invention relates to a door with a thermally insulated floor threshold, in particular a house, apartment or patio door, consisting of a door frame and at least one door leaf which in the closed position strikes the floor threshold in the floor area, which is attached to the side of the door frame.

Such doors are usually installed or fitted in house and apartment construction after the shell has been completed, firstly so that they can be plastered in during the plastering work and secondly so that the apartment unit can be closed off as early as possible so that the interior can be closed off during further interior work. Both for doors made by hand by a carpenter and for doors manufactured industrially in large quantities, it is usual for the threshold area to be thermally insulated to avoid cold bridges between the inside and outside areas. For this purpose, a polystyrene-based thermal insulation material is generally placed in front of and behind the threshold. However, these edge strips are disadvantageous for some applications, as they can result in unsightly joints, which then have to be filled with silicone compound.

However, the greater disadvantage here is that the door frame with the threshold installed in the shell state is arranged approx. 10 cm above the raw concrete layer, since the screed layer is still applied to the raw concrete. In addition, the raw concrete layer is generally chosen to be somewhat deeper in order to be able to compensate for tolerances or inaccuracies in the construction using the screed layer. After the door has been installed, with the door frame usually supported using wooden wedges, the door threshold is then only attached to the lower end of the door frame, and if necessary supported by further wooden wedges.

IG 25019DE PA Kahler, Käck, Fiener & Sturn\ .17. May£1,995.

During construction work for the interior fittings, the work materials must be transported over the door or floor threshold, which can cause damage and bending of the floor threshold, especially if wheelbarrows or similar heavy loads are driven over it. Many building tradesmen place access ramps directly on the floor threshold, which means that considerable stress is placed on the relatively thin-walled floor threshold, which is generally made of aluminum, leading to twisting and permanent deformation. The floor threshold may then have to be realigned to enable the door to close tightly.

Accordingly, the invention is based on the object of specifying a door with a thermally insulated floor threshold, the installation of which is simplified and, in particular, deformation of the floor threshold is excluded.

This object is achieved with a door according to the features of claim 1.

By arranging a spacer profile under the door or floor threshold when assembling the door in the shell state, it is ensured that the door threshold is supported over its entire length against the raw concrete floor layer. Deflections of the floor threshold when wheelbarrows and the like are driven over are thus prevented. In addition, the spacer profile, particularly in the version as a hollow chamber profile made of extruded plastic material, ensures a complete thermal separation between the inside and outside areas. In addition, the spacer profile, due to its continuous design, also serves as formwork for the internal screed, so that no further formwork is required. The same applies to the spacer profile to be applied to the raw concrete on the outside of the door.

!G 25019DE PA Kahler, Kack, Fiener & Sturrni7.

Outdoor flooring. This means that the floor work inside and outside can be carried out completely independently of each other.

This results in a simpler and faster assembly of the door while at the same time ensuring excellent thermal insulation in the threshold area. This applies in particular to the preferred design of the spacer hollow chamber profile consisting of at least two telescoping profile rails that have a number of horizontal grooves in a grid pattern so that the hollow chamber profile can be adjusted to the distance between the lower edge of the threshold and the upper edge of the raw concrete layer. The grid-like grooves have a pitch of 8 mm each, for example, so that the usual distance between the threshold and the raw concrete layer can be adjusted in stages in the order of approx. 5 cm to 10 cm. This type of construction can also be achieved with telescoping molded foam strips made of rigid foam.

If, for example, a gap of 15 cm is present due to a structural change or inaccuracy in the construction, this gap between the raw concrete and the threshold can be bridged by adding a third or fourth profile rail, so that after installation the door or threshold is supported on the raw concrete along its entire length.

The profile rails are essentially identical parts, so that adjustment can be made on site. In addition, horizontally running, pre-formed separation lines can be provided on the spacer profile, so that the proposed hollow chamber profile can also be used for door installation in old buildings, in which the remaining height between the outside and inside areas is made possible by cutting along the respective hollow chamber profile. This can be done easily using a knife or similar cutting tool.

IG 25019DE PA Kahler, Käck, Fiener & Sturm 17 March 1995

so that an exact adjustment to the existing height difference in the threshold area is achieved, whereby it is particularly advantageous that by putting over this proposed floor threshold the old door threshold can remain, so that no extensive breaking and chiseling work is required.

Further advantageous embodiments are the subject of the further subclaims.

Below, several embodiments are explained and described in more detail using the drawings. Here:

Fig. 1 a sectional view through the lower part of a door with the proposed thermally insulated threshold;

Fig. 2 is a sectional view through a profile rail of the preferably used spacer profile;

Fig. 3 shows a further profile rail interacting with the profile rail according to Fig. 2;

Fig. 4 a modified embodiment of the spacer hollow chamber profile in side section;

Fig. 5 is a side view rotated by 90° of the spacer hollow chamber profile according to Fig. 4; and

Fig. 6 the application of the spacer hollow chamber profile for an old building door.

Fig. 1 shows the floor area of a door 1, which essentially consists of a door frame 2, a door leaf 3 and a threshold 4. The threshold 4 is attached in the usual way to the two side beams of the door frame 2 with brackets 4a, which are shown in the sectional view shown here as hidden, dashed lines. The door 1, as it is used in particular for house, apartment or patio doors, is mounted in the usual way during assembly on the construction site, preferably using heavy-duty dowels (not shown in detail).

IG 25019DE PA Kahler, Käck, Fiener & SturrtU7. March.1995. .

in the masonry and then the gap between the door frame and the masonry is filled with assembly foam. The key factor here is the support of the threshold 4 against a floor layer 5, generally a raw concrete layer.

According to the innovation, a spacer profile 6 is provided under the threshold 4, which extends like a strip between the two side rails of the door frame 1 (see Fig. 5). This spacer profile 6 bridges the gap that would otherwise remain between the threshold 4 and the raw concrete floor layer 5, creating a stable support for the threshold 4 so that the threshold 4 can be walked on and driven over after the door 1 has been installed. In addition, the spacer profile 6 creates excellent thermal insulation between the outside area on the left here and the inside area on the right here, especially in the version as a hollow chamber or molded foam strip profile. In addition, the spacer profile 6 forms an exact vertical separation between the floor layers that still have to be applied to the raw concrete 5, both in the outside area and in the inside area. In the interior area on the right, a layer of poured or flowing asphalt several centimeters thick is generally applied, after which an additional horizontal moisture barrier and thermal insulation, as well as underfloor heating if necessary, is laid on the raw concrete. The upper edge of the screed is designated by the abbreviation FFB (finished floor), which is common in the construction industry.

The same applies to the floor covering on the left in the outdoor area, where paving, tiles or a layer of tar is usually chosen. The external floor covering on the left here ends with the lower edge of the threshold 4, while the inner floor covering on the right here connects to the door threshold 4, leaving a stop free. Preferably, however, the spacer profile 6 is inserted into the threshold 4 in the uppermost area 6' through a groove-like sliding guide 13, so that the door seal 3a on the hollow chamber

IG 25019DE PA Kahler, Kack, Fiener & StuimJ7. March, J995.

Spacer profile 6. Since the spacer profile 6 is preferably made of plastic, this results in a further improvement in thermal insulation and the avoidance of cold bridges. In particular, however, the formation of condensation on the floor sill 4 and thus also the freezing of the door seal 3a on the door or floor sill 4 is reliably avoided by the contact of the rubber profile of the door seal 3a with the plastic part 6' of the hollow chamber spacer profile 6. The profile design of the hollow chamber spacer profile 6 in its uppermost area 6' also creates an air chamber directly below the door sill 4, which improves the insulating effect. This achieves particularly reliable thermal insulation in the area of the floor sill 4 in the transition from the outside to the inside.

In a preferred embodiment, the spacer profile 6 is designed to be height-adjustable, in particular from at least two profile rails 6a, 6b, 6c that can be pushed into one another and thus joined together on top of one another, as shown here. It should be noted that the profile rails 6b and 6c are designed identically, so that if the distance between the threshold 4 and the raw concrete floor layer 5 is even greater, one or more profile rails can be added to bridge this distance and thus to provide reliable thermal separation between the inside and outside areas. The profile rails 6a, 6b, 6c each have a height of approximately 3 to 5 cm (see also Fig. 3), so that depending on the distance between the threshold 4 and the raw concrete layer 5, the spacer profile 6 can be put together from the corresponding number of partial profile rails 6a, 6b, 6c, etc. For any extension, interlocking grooves 7 and matching gripping strips 8 are provided on the profile rails 6a, 6b, 6c, as can be seen in the exploded view in Figures 2 and 3. These grooves 7 and the correspondingly designed, rib-shaped gripping strips 8 are in

IG 25019DE PA Kahler, Käck, Fiener & Sturm.t7.

a uniform vertical pitch a, so that the lower profile rail (here 6b) can be inserted into the upper profile rail (here 6a) in three different positions. This makes it particularly easy to adjust the height and adapt the spacer profile 6 to the respective distance between the threshold 4 and the floor layer 5.

If, for example, the raw concrete layer 5 were slightly higher than in the drawing or the construction plan, with the arrangement otherwise remaining the same, the lower profile rail 6c could be dispensed with, whereby the profile rail 6b shown in Fig. 3 could then be pushed laterally with its uppermost wraparound strip 8 into the lowest or middle groove 7 of the profile rail 6a. This enables easy height adjustment directly on the construction site depending on the installation conditions encountered.

After the spacer profile 6 has been pushed together by two or more profile rails, depending on the distance between the raw concrete layer 5 and the threshold 4, the hollow chamber profile 6 assembled in this way is fixed using adjusting or fixing elements 9. These additional fixing or adjusting elements 9 are preferably formed by angles, so that the hollow chamber spacer profile 6 is also fixed laterally. Screws 9' can also be embedded within the lowest profile rail 6c, so that the corresponding fixing can take place directly in or on the raw concrete layer 5. However, the hollow chamber profile 6 can also be fixed laterally to the raw concrete layer 5 using flat wedges or wedge strips 10, as is indicated here. The spaces between the wedges or wedge strips 10 are also expediently filled with assembly foam to ensure complete thermal separation between the outside and inside areas.

IG 25019DE PA Kahler, Käck, Fiener & Sturm.17. March.3995.

Towards the outside, at least one of the profile rails 6a, 6b, 6c expediently has a fastening groove 11 in which a sealing sheet 12 running to the outside area can be fixed. This creates a secure moisture barrier between the outside area and the inside area. However, it should be noted that the interlocking profiles of the grooves 7 and wraparound strips 8 also form a type of labyrinth seal, so that a very good moisture barrier is already achieved by these multiple interlocking profiles.

In Fig. 2 and 3, the two profile strips 6a and 6b, which can be pushed into one another in cross-section, are shown separately from one another. The upper profile rail 6a here has two groove-shaped engagement profiles 13 on its upper area 6' for plugging into the correspondingly designed underside of the threshold 4. In addition to the additional fixation of the threshold 4, this achieves a secure moisture barrier and thermal separation between the outside and inside areas. In the area of the profile rail 6a pointing downwards, it has a meandering design, whereby the deeper grooves 7 and the raised wraparound strips 8 are formed. This profiling is repeated in the following profile rail 6b according to Fig. 3, offset accordingly. However, it should be noted that two or four such pairs of grooves/wraparound strips 7/8 can also be provided, so that the profile rails 6a and 6b can be assembled accordingly for the height adjustment of the hollow chamber profile 6.

The spacer profile 6 or its profile rails 6a, 6b, 6c are preferably designed as a plastic extrusion profile, so that such profile rails can be carried by the craftsman in the workshop or service vehicle, similar to floorboards, and can then be cut to length, e.g. one meter, depending on the width of the door. Depending on the distance between the threshold 4 and the raw concrete floor layer 5, two or three

IG 25019DE PA Kahler, Käck, Fiener & Sturm.17.

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such profile rails 6a, 6b and here 6c are put together, so that the distance between the floor sill 4 and the raw concrete 5 is practically completely closed. As described above, by moving the groove-wrapping strip pairs 7/8 to the upper, middle or lower position, the vertical distance (total height) can be changed by the pitch a.

Although the spacer profile 6 is preferably designed as a plastic extrusion profile with hollow chambers, such a hollow chamber profile 6 can also be designed in several parts, for example, have a central support profile 15 made of metal, onto which the two adjacent side parts are then pushed by means of a dovetail guide 20, as is indicated in dashed lines in Fig. 3.

Fig. 4 shows a modified form of the spacer profile 6, whereby the individual profile rails 6a, 6b and 6c are dovetail-shaped in comparison to the meandering or labyrinth-shaped design of the grooves 7 and wraparound strips 8. It should be noted that the lower profile rail 6c also has a dovetail guide 20 on the outward-facing surface, so that the lower profile rail 6c can be pushed onto the underside of the profile rail 6b by turning it 90° to the right. This would make it possible to adjust the height of the hollow chamber profile 6 thus formed, provided that the raw concrete floor layer 5 were, for example, a few centimeters higher than the level shown here.

In Fig. 5, a view according to arrow B in Fig. 4 is shown. This shows the continuous design of the profile rails 6a, 6b, 6c, as well as the fastening by means of the fixing and adjusting elements 9 in the form of angles. These angles have elongated holes (not shown in more detail) in order to enable the corresponding height adjustment when fixing the lower profile rail 6c by screwing screws 9' into

IG 25019DE PA Kahler, Käck, Fiener & Sturm47. March.1895. .

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corresponding longitudinal grooves (as indicated by reference numeral 14).

Fig. 6 shows a modified embodiment, which is particularly suitable for doors in old buildings. In this case, the door leaf 3 also has a central seal compared to the overlap seal shown in Fig. 1, so that the angles 4a for supporting the threshold 4 are also offset closer to the outside of the door 1. The threshold 4 here encompasses an angle rail 16, which can be left in the floor of a door to be replaced, so that no complex compressor or chisel work is required. Instead, the door with the "new" threshold 4 can simply be put over the "old" angle rail 16 remaining in the floor. To achieve good thermal insulation between the outside and inside areas and to bridge the gap between the floor layer 5 and the threshold 4, the upper profile rail 6a according to Fig. 2 of the spacer profile 6 is again provided as a plastic part in a hollow chamber design, with the engagement grooves 13 of the upper area 6' of the hollow chamber profile 6 engaging in correspondingly designed, strip-shaped profiles on the underside of the threshold 4. To compensate for the distance between the threshold 4 and the floor layer 5, the profile rail 6a can be shortened according to the stop height, with horizontally running, pre-formed separation lines 14 (see also Fig. 5 with dash-dotted representation) preferably being provided within the longitudinal grooves there. However, these separation lines 14 can also be formed along the grooves 7 according to Fig. 2, since in this groove area there is only a thin material thickness anyway, so that the profile rail 6a, 6b can be evenly separated by pulling a sharp knife along such a groove 7. Due to the relatively small pitch distance a (see Fig. 3), precise guidance of the separating tool and thus exact adaptation to the given soil conditions of the soil layer 5 is possible, even in old buildings.

IG 25019DE PA Kahler, Käck, Fiener & Sturme. MäizJSQS, .

Claims (15)

-1 -Claims 1. Door with thermally insulated floor threshold, in particular house, apartment or patio door, consisting of a door frame and at least one door leaf which, in the closed position, strikes the floor threshold in the floor area, which is attached to the side of the door frame, characterized in that when the door (1) is installed, at least one spacer profile (6) is arranged under the floor threshold (4) to bridge the gap between the floor layer (raw concrete 5) and the floor threshold (4). 2. Door according to claim 1, characterized in that the spacer profile (6) is designed as a hollow chamber profile. 3. Door according to claim 1 or 2, characterized in that the spacer profile (6) consists of at least two telescoping profile rails (6a, 6b, 6c...). 4. Door according to claim 3, characterized in that the profile rails (6a, 6b, 6c...) have several horizontally extending grooves (7) and wrap-around strips (8) designed to match them. 5. Door according to claim 4, characterized in that the grooves (7) and the wraparound strips (8) are arranged at a uniform, vertical pitch (a) in the upper and/or lower region of the profile rails (6a, 6b, 6c...). 6. Door according to one of claims 1 to 5, characterized in that !G 25019DE PA Kahler, Kack, Fiener & Sturm .1.7. Price &Lgr;99£. -2- the spacer profile (6) is designed as a plastic extrusion hollow chamber profile. 7. Door according to one of claims 1 to 5, characterized in that the spacer profile (6) is formed in several parts in the vertical plane. 8. Door according to claim 7,
characterized in that the parts (15) of the spacer profile (6) are inserted into one another with a dovetail guide (20). 9. Door according to one of claims 2 to 8, characterized in that fixing and adjusting elements (9) are provided on the spacer profile (6) for height adjustment. 10. Door according to claim 9,
characterized in that the fixing and adjusting elements (9) are formed by screws (9'). 11. Door according to one of claims 1 to 10, characterized in that at least one fastening groove (11) for inserting a sealing sheet (12) is arranged on the spacer profile (6) towards the outside. 12. Door according to one of claims 1 to 11, characterized in that the spacer profile (6) has on its upper region engagement grooves (13) for plug-in connection with the floor sill (4). 13. Door according to one of claims 1 to 12, characterized in that the uppermost area directed towards the door leaf (3) IG 25019DE PA Kahler, Käck, Fiener & Sturm.t7. March.1995 -3- (6') of the spacer profile (6) is in contact with the door seal (3a) in the door closed position. 14. Door according to one of claims 1 to 13, characterized in that the spacer profile (6) has horizontally running, preformed separation lines (14). 15. Door according to at least one of the preceding claims, characterized in that the spacer profile (6) is designed as a molded foam strip. IG 25019DE PA Kahler, Käck, Fiener & Sturm.17. March.1995. .