DK2435639T3 - Movable exterior wall system and method of incorporating it in an existing building - Google Patents

Description

The present invention relates to an exterior wall system of a building, which includes a movable exterior wall according to the preamble part of claim 1, and to a method of installing an exterior wall system according to the invention into an existing building.

Exterior wall systems are realized in the construction sector in a variety of embodiments, for example from steel or reinforced concrete in a frame construction in newly built blocks of flats. In this type of construction, a load-bearing skeleton of ceilings and vertical supporting posts is produced for transfer of the loads, into which non-load bearing infills are inserted. As a non-load bearing element, the protective exterior wall or the fagade of the building is not mounted to the load-bearing parts of the building until after completion of the carcass of the building.

For this purpose, in most cases individual, prefabricated fagade elements or fagade systems are used which are made, for example, from glass, metal or synthetic material and which are fastened to the load-bearing structure of the building and are connected using sealing elements to form a tight exterior wall. The wall elements are preassembled in the factory and are provided with window elements, thermal insulation and sound absorption, ventilation elements or, for example, shading facilities, so that the assembly at the construction site can be significantly reduced. A variable system of individual exterior wall elements also allows an individual adaptation and design of the exterior wall or of the fagade.

Apart from being employed in the construction of new buildings, exterior wall systems become more and more important also in renovation and refurbishment of existing buildings. In addition to a suitable architectural design, a replacement of existing fagades or exterior walls by new exterior wall systems having enhanced insulating properties allows a better insulation of existing buildings, so that considerable energy savings can be attained.

The generic document FR 2 730 259 A1 discloses an exterior wall system in which a wall is displaceable perpendicularly to its plane of extent by means of linear rails, in order to variably separate the living area and the terrace area. DE 101 02 287 A1 describes a device allowing a permanent displacement of non-load bearing walls in enclosed spaces. DE 10 2009 011 220 A1 shows a building made up of two box-like units fitted into each other, which form the side walls of the house. By fitting the units into each other to a greater or lesser extent, the size of the living space can be changed. A shelf partition wall system mounted on roller bearings is proposed in EP 1 654 958 A1. FR 1 103 510 A discloses an accordion partition that can be shifted on linear guides perpendicularly to its plane of extent. A system similar to this is proposed in WO 2007/083922 A1, where, however, toothed racks are mounted along the side walls for adjustment by a motor and for folding the wall.

The present invention provides an exterior wall system for a building which opens up new possibilities of architectural design.

According to claim 1, the exterior wall system of a building according to the invention includes a movable exterior wall and a bearing for the movable exterior wall, the movable exterior wall separating an interior space from a walkable exterior space, being reversibly adjustable between at least two closing positions and being adapted to be locked in place in each of the closing positions and separating the interior space from the outside in each of the closing positions. The bearing includes at least one rail in which the movable exterior wall is displaceably guided, the rail being designed such that the movable exterior wall is movable between an inner closing position and an outer closing position, and, in the outer closing position at least part of the exterior space transitioning into the interior space, thus increasing the floor area thereof. As viewed in a ground plan view of the building, the rail forms a curved path and runs on the floor and/or on the ceiling. Alternatively thereto, the rails are provided on the opposite side walls and, in a side view, each form a curved path. The movable exterior wall is adapted to be shifted between its closing positions along the curved path and, when passing through the curved path, it can be adjusted to an intermediate position in which it extends along a side wall defining at least sections of the exterior and interior walls or along the ceiling, the exterior space and the interior space completely transitioning into each other in the intermediate position.

The interior space here is a living space of a building, for example, which is separated from the outside by the movable exterior wall. The movable exterior wall fulfils all functional requirements made on an exterior wall, so that the interior space is protected from outside influences such as moisture, wind, temperatures, in each of the closing positions in which the exterior wall can be locked in place. The walkable exterior space more particularly is a balcony, a loggia or a terrace which is accessible from the interior space or also from a different space or room. In the inner closing position, the exterior wall is arranged between the interior space and the exterior space, so that the exterior space is separated from the interior space by the exterior wall and the exterior space is in communication with the environment. In the outer closing position, at least part of the exterior space or the entire exterior space transitions into the interior space, so that it is separated from the outside. In this way, the floor area of the interior space is increased, so that a larger space is available which can be air-conditioned. The exterior wall system according to the invention thus allows a more flexible space utilisation of the building: depending on the closing position, the exterior space may be utilized either as a heated interior space or as a non-heated exterior space. In this way, the balcony, for example, can be utilized as a fully-fledged living space in winter and as an open space in summer. Its simple structure allows the exterior wall system according to the invention to be made use of both in the construction of new buildings and in the renovation and refurbishment of existing buildings. Furthermore, an appropriate insulation of the exterior wall system allows an improvement of the thermal insulation in existing buildings.

As viewed in a ground plan view of the building, the rail forms a curved path and runs on the floor and/or on the ceiling. The exterior wall can be shifted, preferably as a whole, between the two positions along the curved path, so that it can be moved from one closing position to a second closing position in a very space-saving manner. It is only required that the room between the rail on the floor and the rail on the ceiling be kept free. Any furnishings or fittings disposed in the exterior space need not be moved.

As mentioned above, the movable exterior wall can be adjusted to an intermediate position in which it extends along a wall defining at least sections of the exterior wall or the interior wall or along the ceiling. In this intermediate position, the exterior space and the interior space completely transition into each other, so that a completely open space is created which offers a pleasant living climate during summer months.

For a further increase in flexibility and to facilitate the displaceability of the exterior wall, the movable exterior wall preferably includes a plurality of wall elements. These wall elements may be provided separately from one another and may be provided with sealing elements, so that they are movable individually and can be assembled to form a tight exterior wall in each of the closing positions. The wall elements may, however, also be coupled to each other, in particular in a hinged fashion.

In the embodiments illustrated in the later Figures, the operation and use of the system according to the invention is improved in that the inside of the exterior wall in one closing position becomes the outside of the exterior wall in the other closing position, so that the exterior wall is turned between the closing positions, which is made possible by the curved path.

The wall elements may, for example, be coupled to one another such that they can be moved as a unit and a displacement of the exterior wall from one closing position to a second closing position is made easier. The coupling may be effected by means of hinges or other movable connecting elements, for example.

The movable exterior wall preferably includes at least one window and/or a lockable door which selectively opens the interior space to the exterior space. The exterior space may, for example, be accessible from the interior space through a door. In addition, the windows ensure a sufficient admission of light into the space.

The movable exterior wall is mounted to be horizontally or vertically shifted. In this way, the exterior wall can be shifted from one closing position to a second closing position either horizontally, for example over a side wall, or vertically, for example over the ceiling of the space.

Preferably, the bearing includes at least one pair of rails running parallel to each other.

The exterior wall is adapted to be shifted, preferably as a whole, between its closing positions perpendicularly or transversely to its plane of extent.

The rails of the pair of rails are arranged on opposite sides of the exterior wall, so that the exterior wall is securely guided in the pair of rails. The exterior wall can be shifted as a whole, but it is also conceivable that a pair of rails each guides a respective wall element of the exterior wall.

In a preferred embodiment, the curved path runs in a U shape or an arc shape as viewed in a ground plan view of the building. The curved path of the rail is preferably selected here such that part of it runs along a wall adjacent to the displaceable exterior wall, so that the latter can be parked in an intermediate position in which the exterior wall extends along the wall of the space.

In a second embodiment, the rails are provided on or in opposite, stationary walls, and the movable wall can be vertically shifted between the closing positions. The movable exterior wall can be shifted from a first closing position vertically over the ceiling of the space or room to the second closing position. As there are no rails on the floor or on the ceiling, the entire space can be utilized. In addition, no precautions need to be taken to protect the rails, above all the rail on the floor, from soiling.

For an ideal integration of the bearing of the exterior wall system into the space, the bearing terminates towards the space flush with the ceiling and/or the floor of the space. The bearing is completely embedded in the ceiling and/or in the floor without protruding therefrom.

The exterior wall of the exterior wall system can be moved manually from a closing position to a second closing position. But it is also conceivable that a motor drive and a controller are provided to move the movable exterior wall from an outer closing position to the inner closing position.

The controller may be adapted to be activated manually, in a time-controlled fashion, or by sensors. In this way, the exterior wall can be shifted, for example, depending on climatic conditions such as precipitation, wind or particular temperatures, or depending on the time of day.

According to the preferred embodiment, the exterior wall system may include an additional floor plate and ceiling plate which are to be mounted later and which already include the bearing. In this way, the assembly of the exterior wall system is considerably simplified, in particular in the case of renovations, because it is not necessary to fit the bearing into the ceiling provided in the building or into the floor of the space in a complicated manner. It is only necessary to fasten the additional ceiling plate and/or the floor plate to the building. This results in a module which can be assembled quickly and is made up of variable components. The loads which act on the ceiling and/or the floor of the building by the movable exterior wall can be transmitted to the building via the entire surface area of the additional floor plate and/or ceiling plate. The floor plate and/or the ceiling plate also allow(s) a compensation for uneven portions on the ceiling and/or on the floor of the building, for example, so that an even surface is provided for the bearing, and provision is made for the required insulation.

It is furthermore conceivable that the exterior wall system includes two opposite side walls which connect the ceiling plate and the floor plate. The side walls can, for one thing, support the ceiling plate so that no elaborate attachment of the ceiling plate to the ceiling of the building is necessary; for another thing, it is conceivable to arrange additional lines or insulations in the side walls, for example in order to obtain a better thermal insulation of the interior space. The enlargeable space is insulated by means of the retrofitted floor, ceiling and side walls.

Preferably, the floor plate, the ceiling plate and the side walls each form a self-supporting structure and a preassembled unit. This preassembled unit may be configured as a unit which can be placed later on a floor plate, ceiling plate and/or side walls provided in the house, or can be mounted to the outside of the building wall; it is preassembled in the factory, delivered as a unit, and installed in or mounted to the building from the outside using a crane, for example. This allows the time for assembly at the building to be significantly reduced.

The units are preferably of a multilayer design and contain an insulation.

The floor plate, the ceiling plate and the walls together may even form a prefabricated, box-like unit which can be placed on an existing balcony, terrace or loggia later or can be mounted to the outside of a building wall, which facilitates the renovation of big large-panel system buildings.

The floor plate, the ceiling plate and/or the side walls are preferably placed on a floor plate, a ceiling plate and/or side walls existing in the house. This makes any extensive preparatory work at the existing building unnecessary.

But it is also conceivable that beams, girders, supports or other fastening facilities are provided on the outside of the building and the floor plate, the ceiling plate and/or the side walls are fastened thereto, so that the exterior wall system is entirely mounted to the outside of the exterior wall of the building.

To make possible a thermal insulation of the interior space in each of the closing positions, an insulation is provided between the floor plate, the ceiling plate and/or the side walls of the exterior wall system and the floor plate, the ceiling plate and, respectively, the side walls that are part of the house. As the insulation is in this way mounted with the exterior wall system, a simple insulation of the building is possible, without any complicated work on the building.

It is conceivable that the side walls, the ceiling plate or the floor plate include integrated lighting elements and/or electrical connections.

In addition, the exterior wall system may include heating or cooling elements which are integrated in particular in the ceiling plate, the floor plate and/or the side walls.

The exterior wall system also includes water drain channels. In the inner closing position of the exterior wall, these channels allow water to be drained from the exterior space. In the outer closing position of the exterior wall, the water drain channels are closed to the interior space, so that no water can penetrate from outside into the interior space.

The floor plate is configured to be placed on a floor plate provided in the house, for example, and may project outwards in relation thereto. In this way, the exterior wall system according to the invention also allows an enlargement of the existing floor area of the room or of the building.

According to the invention, further provision is made according to claim 13 for a method of installing an exterior wall system according to the invention into an existing building. The method includes the following steps: - fastening of bearings for the respective exterior wall to the existing building adjacent to an and/or in an existing interior space which can be opened to an existing exterior space, and mounting the movable exterior wall in the bearing, so that, depending on the position of the movable exterior wall, the existing interior space can be selectively enlarged, the bearing being attached to a floor plate, a ceiling plate and/or a side wall adapted to be later fastened to the building and being fastened to the existing building (12) via the floor plate, ceiling plate and/or side wall.

In this case, the bearing is fastened to the existing building via this floor plate, ceiling plate and/or side wall.

The method according to the invention may, for one thing, be made use of in constructing new buildings, but it is preferred to make use of the method for the renovation of existing buildings.

In a further development of the method, the bearing along with its associated floor plate, ceiling plate and/or side wall are fastened to one another in advance. The resulting plate-shaped units are mounted to a floor plate, ceiling plate and/or side wall provided in the house. The bearing may, for example, be fastened in or to the floor plate, the ceiling plate and/or the side wall as early as during the production thereof, in order to realize it in a simple manner flush with the floor plate, the ceiling plate and/or the side wall.

In a preferred embodiment of the method, the floor plate, the ceiling plate and the side walls are already preassembled to form a box-like unit. This unit is placed on a floor plate provided in the house and is fastened to the building. In this way, the exterior wall system is completely preassembled, as a result of which the time for assembly at the construction site or at the building can be reduced.

The box-like unit is preferably placed on an existing balcony or an existing loggia.

Further advantages and features will be apparent from the description below in conjunction with the enclosed drawings, in which: - Figure 1 shows a ground plan view of an exterior wall system according to the invention; - Figure 2 shows a sectional view of the exterior wall system of Figure 1; - Figure 3 shows an exterior view of the exterior wall system of Figure 1; - Figure 4 shows a perspective interior view of the exterior wall system of Figure 1 in a first closing position of the exterior wall; - Figure 5 shows the exterior wall system of Figure 4 in a second closing position of the exterior wall; - Figure 6 shows the exterior wall system of Figure 4 in an intermediate position of the exterior wall; - Figures 7a to 7c show schematic ground plan views of the exterior wall system of Figure 1, with different positions of the exterior wall; - Figure 8 shows a further development of the exterior wall system of Figure 7; - Figures 9a and 9b show a vertical sectional view and a ground plan view of the exterior wall system of Figure 1; - Figures 10a to 10c show detailed views of the exterior wall system of Figure 1; - Figures 11a to 11c show a perspective illustration of a part of a building with an exterior wall system of Figure 1 in different positions of the exterior wall; - Figures 12a to 12c show a perspective illustration of a building with a second embodiment of the exterior wall system according to the invention; - Figures 13 to 15 show ground plans of a building with various possibilities of positioning an exterior wall system according to the invention; - Figures 16a and 16b show a further embodiment of the exterior wall system according to the invention; - Figures 17 to 21 show ground plans of different embodiments of an exterior wall system according to the invention; - Figures 22 to 24 show ground plans of the exterior wall system according to the invention with different embodiments of the bearing of the movable exterior wall; - Figures 25 and 26 show two embodiments with a vertically displaceable exterior wall; and - Figures 27a to 27f show exemplary embodiments of the arrangement of the exterior wall system according to the invention in a building.

Figure 1 illustrates a flexible exterior wall system 10 for a building 12 which has an interior space 14 and a walkable exterior space 16. In this case, the exterior space 16 is a balcony which is accessible from the interior space 14. The exterior wall system 10 has a floor plate 18 which occupies substantially the entire ground plan of the exterior space 16 here and is placed on the floor plate 19 belonging to the house, as well as two opposite side walls 20 which are each arranged at and fastened to a side wall 22 of the building 12 parallel thereto. As can be seen in Figure 2, the exterior wall system 10 further has a ceiling plate 24 which is fastened to the ceiling plate 26 of the building 12.

The exterior wall system 10 has a movable exterior wall 28 which here is assembled from three wall elements 30, 32, 34 coupled to each other. As can be seen in particular in Figure 3, the wall element 34 on the right with respect to Figure 3 includes a door 36 here which can open the interior space 14 to the exterior space 16. The other wall elements 30, 32 each include a window 38, 40. Disposed at the building 12 in front of the exterior wall system 10 is a railing 42.

The exterior wall system 10 includes a bearing 44, in this case a pair of rails, in which the movable exterior wall 28 is mounted for displacement in the horizontal direction R (see Figure 1). A first rail 46 of the bearing 44 is provided in the floor plate 18 here, the second rail 48 is arranged in the ceiling plate 24 (see Figure 2). The rails 46 and 48 are each configured in a U-shape, and a first section thereof runs between the interior space 14 and the exterior space 16, a second section thereof runs parallel to a side wall 20 of the exterior space 16, and a third section thereof runs along the outside of the balcony.

The bearing 44 of the exterior wall system 10 here has an inner closing position 50 and an outer closing position 52, in each of which the movable exterior wall 28 can be locked in place. The exterior wall 28 is held in the bearing 44 such that it can be reversibly shifted from one of the closing positions 50, 52 to the respective other closing position 50, 52. Each of the closing positions 50, 52 is characterized in that the movable exterior wall 28 can be locked in place in the closing position 50, 52, and the interior space 14 is partitioned off with respect to an outdoor area 54 by the exterior wall 28 locked in place in a closing position 50, 52 such that the interior space 14 constitutes a space that can be air-conditioned separately from the outdoor area 54.

Owing to the movable exterior wall 28, the size or the floor area of the interior space 14 that can be air-conditioned is variably changeable. In the outer closing position 52, the exterior space 16 fully transitions into the interior space 14 or the space that can be air-conditioned, so that the size or floor area thereof is increased. The area of the exterior space 16 which can not be utilized in bad weather conditions, for example in winter, can in this way transition or merge at least in part into the interior space 14 and can thus be utilized even in bad weather conditions.

The operating principle is illustrated again with reference to Figures 4 to 6: In Figure 4, the movable exterior wall 28 is locked in place in the inner closing position 50, so that the interior space 14 is separated from the exterior space 16. In this case, the space that can be air-conditioned corresponds to the volume of the interior space 14; the exterior space 16 (balcony) is in communication with the outdoor area 54 (surroundings of the building). The exterior space 16 can be accessed from the interior space 14 through the door 36 provided in the wall element 34, so that the exterior space 16 can be utilized as a balcony, terrace or loggia.

The movable exterior wall 28 can be shifted to the outer closing position 52 along the bearing 44 via an intermediate position 56 illustrated in Figure 6. In this intermediate position 56, the interior space 14 and the exterior space 16 continue into each other, so that a large continuous space is created, which in summer provides for a pleasant openness of the flat.

In the outer closing position 52 as illustrated in Figure 5, the movable exterior wall 28 is arranged at the outside of the building 12, that is, between the exterior space 16 and the outdoor area 54. In this closing position, the movable exterior wall 28 separates the interior space 14, enlarged by the former exterior space 16, from the outdoor area 54. The space that can be air-conditioned is increased. In the outer closing position, the exterior space 16 can therefore be utilized as a heatable living space, for example in winter.

Since the movable exterior wall 28 can be simply shifted along the bearing 44 from one closing position 50, 52 to a second closing position 50, 52, the closing position of the movable exterior wall 28 can be quickly adjusted to changes in weather conditions, for example. As can be seen in Figures 4 to 6, the movable exterior wall is displaced along the U-shaped bearing 44, so that the exterior space 16 can be fully utilized during the shifting process. Any furnishings or fittings arranged in the exterior space 16 need not be removed for a displacement of the movable exterior wall 28.

The movable exterior wall 28 can be moved along the bearing 44 manually, but it is also conceivable that a motor drive, not illustrated here, is provided which moves the movable exterior wall 28 along the bearing 44. To this end, the motor drive may include a control which can be activated manually, in a time-controlled fashion or by sensors. A time control allows, for example, a displacement of the movable exterior wall 28 depending on the time of day or an adjustment of the closing position to the position of the sun, depending on the time of day.

It is conceivable that, at noon during the summer, the movable exterior wall 28 is shifted to the inner closing position 52 in a time-controlled fashion, so that the intense solar radiation that is incident at a steep angle merely heats the exterior space 16, but not the interior space 14, as a result of which the interior space 14 can be prevented from being heated up greatly. In the case of a solar radiation incident at a smaller angle, on the other hand, the movable exterior wall 28 can be moved to the outer closing position 52, so that the insolation can be made use of for heating the interior space 14. In addition, the incident daylight allows a better lighting of the interior space 14 to be achieved.

But the control may also be effected depending on various sensors such as light sensors or rain sensors, for example, so that in rainy conditions, for example, the movable exterior wall 28 is moved to the outer closing position 52 to protect any furnishings arranged in the exterior space 16.

Figures 7a to 7c again illustrate, by way of summary, the operating principle of the exterior wall system 10 according to the invention based on the ground plan of the building 12, with the different positions of the movable exterior wall 28. In Figure 7a, the movable exterior wall 28 is locked in place in the inner closing position 50, in which the interior space 14 is partitioned off from the exterior space 16. In Figure 7b, the movable exterior wall 28 has been shifted along a side wall to an intermediate position 56 in which the interior space 14 and the exterior space 16 completely transition into each other. Figure 7c shows the movable exterior wall 28 shifted to the outer closing position, in which the exterior space 16 transitions into the interior space 14.

In addition to the embodiment of the exterior wall system 10 according to the invention as illustrated here, having two closing positions, embodiments having a plurality of closing positions are also conceivable. Figure 8 schematically shows an exterior wall system 10 with a plurality of closing positions, in this case four. Besides the inner closing position 50, the exterior wall system 10 illustrated here has three outer closing positions 52, 58, 60, in each of which the movable exterior wall 28 can be locked in place, so that the interior space 14 is separated from the outside. In either of the closing positions 58, 60, only part of the exterior space 16 continues into the interior space 14. The position and number of the closing positions of the exterior wall system 10 according to the invention may be varied as desired.

The structure of the exterior wall system 10 is illustrated again in Figures 9a and 9b and also in the detailed views of the bearing in Figures 10a to 10c. As can be seen in the sectional view illustrated in Figure 9a and in the ground plan shown in Figure 9b, the ceiling plate 24, the floor plate 18 and the walls 20 of the exterior wall system 10 are each provided with an insulation 62. This insulation is arranged over the entire surface of the floor plate 18, the ceiling plate 24 and the side walls 20 so that in combination with the movable exterior wall 28, a sufficient insulation of the interior space 14 from the outdoor area 54 is ensured, irrespective of the selected closing position 50, 52, 58, 60 of the movable exterior wall 28.

By way of example, the detail views in Figures 10a to 10c show the structure of a possible insulation 62, but, departing therefrom, a different structure of the insulation 62 is also possible, depending on the climatic conditions and local building regulations.

Figure 10a also illustrates sliding members 63 which are mounted to the exterior wall 28 and protrude into the rails.

Furthermore, supply lines may also be provided in the side walls 20, the floor plate 18 and the ceiling plate 24, for example for connecting electric apparatus, heating or cooling elements. It is likewise conceivable that heating or cooling elements, lighting systems, ventilation systems or facilities for electrical connections are integrated in the exterior wall system 10.

Moreover, a water drain 64 illustrated in Figures 10b and 10c is provided on the floor plate 18 of the exterior wall system 10. This water drain allows rainwater to be drained from the exterior space 16 when the movable exterior wall 28 is locked in place in the inner closing position 50. As can be seen in Figure 10c, the movable exterior wall 28 is configured such that it closes the water drain 64 when the exterior wall is locked in place in the outer closing position 52, 58, 60.

Figures 11a to 11c again show perspective illustrations of a portion of a building with an exterior wall system 10 according to the invention in different closing positions of the movable exterior wall 28. In Figure 11a, the movable exterior wall 28 is in the inner closing position 50, in Figure 11b in an intermediate position 56, and in Figure 11c in the outer closing position 52.

As can be seen in Figures 11a to 11c, the floor plate 18, the ceiling plate 24 and the side walls 20 of the exterior wall system 10 constitute a box-like unit. In the present case, this unit is self-supporting, so that the exterior wall system 10 only needs to be placed on the floor plate 19 of the building 12 and fastened to the building 12. The exterior wall system 10 shown here can therefore be completely preassembled and fitted into the building 12 as a preassembled boxlike unit. As a result, the exterior wall system 10 may, for example, be preassembled at the factory and delivered to the construction site as an assembled unit, so that it merely needs to be fitted to the building 12 or into the space or room. A complicated manufacture of the exterior wall system at the construction site or at the building 12 is therefore not necessary. The exterior wall system 10 is excellently suited for the renovation of large-panel system buildings or large residential buildings because the living space is increased and thermal insulation is improved without major constructional expenditure.

In the embodiment shown here, the exterior wall system 10 is inserted so far into the building 12 that the exterior wall system 10 terminates largely flush with the outside of the floor plate 19 of the building 12.

As illustrated by way of example in Figures 12a to 12c, it is, however, also conceivable that the exterior wall system 10 projects outwards over the exterior shell of the building 12 or the floor plate 19, so that the exterior wall system 10 according to the invention allows an increase in the floor area of the building 12.

The exterior wall system 10 may also be mounted completely to the outside of a building wall of the building 12. In this case, the exterior wall system 10 is placed on supports provided on the outside, for example, or is mounted to beams or girders fastened to the building wall. Depending on the installation conditions, the exterior wall system 10 may be fastened to the beams or girders by the ceiling plate 24, the floor plate 18 and/or the side walls 20 here, so that the exterior wall system 10 is mounted to the beams or girders such that it selectively rests thereon or is suspended therefrom. Departing from this, other ways of fastening it to the building wall are also conceivable.

Figures 13 to 15 each show, by way of example, different ways of arranging the exterior wall system 10 at a building 12. In Figure 13, the balcony or loggia is completely roofed over and terminates flush with the exterior shell of the building 12, whereas in Figure 14 the balcony is situated entirely in front of the exterior shell of the building 12. In this case, the exterior wall system 10 may be placed on a balcony jutting out in relation to the building, but it is also conceivable that the entire exterior wall system 10 is fastened to the outside of the building wall. In Figure 15, part of the balcony or loggia is located within the building 12. In each case, the exterior wall system covers the entire balcony or loggia.

Departing from the embodiments shown so far, in which the exterior wall system 10 forms a self-supporting structure or constitutes a preassembled unit which can be mounted as a whole to a building 12, embodiments without side walls 20 or without a ceiling plate 24 or floor plate 18 are also conceivable.

If the exterior wall system is placed on the floor plate 19 of the building in the form of a completely preassembled box-type or box-shaped unit, as mentioned above, an extremely quick on-site assembly can be realized.

As an alternative, for example in order to avoid the use of a crane, the floor plate 18, ceiling plate 24 and side walls 20 may also be prefabricated to form separately preassembled, individual units which are only put together at the building. Furthermore, these plates or walls could be put together on site from individual elements (for example, elements of a width of 1 m).

The plates and walls are, for example, hollow bodies with an insulation inside; stiffeners in the form of trapezium-shaped elements or the like may also be provided in the interior. In addition, an insulation can be possibly preassembled on the outside at the same time.

Apart from the embodiments described so far, it is further conceivable that the exterior wall system 10 merely includes a floor plate 18 and/or a ceiling plate 24 in which the bearing 44 of the movable exterior wall 28 is arranged. The ceiling plate 24 may be anchored in the ceiling 26 of the building 12, so that no supporting side walls 20 are required. The floor plate 18 and the ceiling plate 24 can also compensate any uneven portions of the building ceiling or of the building floor, for example.

The embodiment illustrated in Figure 16 has the special feature that the exterior wall system 10 has no floor plate 18 and no ceiling plate 24. Here, the rails 46, 48 are installed directly into the floor plate 19 and the ceiling plate 26 of the building 12 and terminate flush with them. An insulation 62 is provided on each of the floor plate 19 and the ceiling plate 26 to ensure a sufficient thermal insulation. This embodiment is preferably suitable for new buildings in which the rails 46, 48 can be fastened in the ceiling plate 26 and the floor plate 19 during production thereof.

Further embodiments of the exterior wall system 10 according to the invention are illustrated by way of example below with reference to Figures 17 to 21. Irrespectively of the shape of the exterior wall system 10 in Figures 17 to 21, all of the embodiments have an inner closing position 50 and an outer closing position 52, in each of which the movable exterior wall 28 separates the interior space 14 from the outside. Moreover, in the outer closing position 52, at least a respective part of the exterior space 16 merges into the interior space 14. While the embodiments illustrated here differ from the previously shown illustrations, the reference numbers used so far will be maintained for all embodiments. In the following, only the differences between the various embodiments will be discussed. In each Figure, the exterior wall system 10 is shown with the movable exterior wall 28 in an outer closing position 52 (a) and in an inner closing position 50 (b).

Figure 17 here shows the exemplary embodiment as illustrated up to now with a rectangular exterior wall system 10 which is partly inserted in the building 12.

In Figure 18, the exterior wall system 10 has a round shape in a plan view. The movable exterior wall 28 is formed as a half cylinder here, and the bearing 44 extends on a circular path. This configuration of the exterior wall system 10 allows the movable exterior wall 28 to be formed in one piece and without articulations.

But, rather than the round ground plan, a polygonal ground plan, for example the octagonal ground plan shown in Figure 19, is also possible. The bearing 44 here extends in the shape of an octagon; the movable exterior wall 28 includes a plurality of wall elements 30, 32, 34 which are movable in relation to one another.

The exterior wall system 10 illustrated in Figure 20 closes off a triangular exterior space, the movable exterior wall 28 extending over the complete side of the triangle in each case. The inner closing position 50 defines one side of the triangle here, the outer closing position 52 defines a second side. The third side of the triangle is defined by a side wall 22. The bearing 44 here extends along the side wall 22, but it is also conceivable that the bearing 44 runs over the apex of the triangle.

The exterior wall system 10 illustrated in Figure 21 closes off a rectangular exterior space. Deviating from the embodiments illustrated so far, two movable exterior walls 28 are provided, which border two adjacent sides of the rectangle.

In addition to the embodiments shown up to now, other embodiments of the exterior wall system 10 according to the invention and of the movable exterior wall 28 are also conceivable. The movable exterior wall 28 may be designed in one piece or be made up of a plurality of wall elements 30, 32, 34. These wall elements 30, 32, 34 can be coupled for movement in relation to and/or with one another. It is also conceivable that the wall elements 30, 32, 34 can be separated from each other, so that they are displaceable separately along the bearing 44.

The bearing 44 may be configured as desired, depending on the embodiment and design of the exterior wall system. As examples, Figures 22 to 24 show various embodiments of the bearing 44 of the movable exterior wall 28. In each of them, the movable exterior wall 28 is shown in the outer closing position 52, see Figure (a), in an intermediate position 56, see Figure (b), and in an inner closing position 50, see Figure (c).

Figure 22, for example, illustrates the arc-shaped or U-shaped bearing 44 in which a movable, three-piece exterior wall 28 is mounted. In the intermediate position 56, the movable exterior wall 28 can be completely placed against the side wall 22, so that the interior space 14 and the exterior space 16 completely transition into each other.

The embodiment of the bearing 44 as shown in Figure 23 includes a switch point 65 at each of the corners of the bearing 44. Due to the shape of the rails 46, 48 chosen here, the movable exterior wall 28 can not be shifted to an intermediate position in which it fully rests against the side wall 22 when it is shifted from the closing position 50, 52 to the respective other closing position 50, 52. When the switch point 65 is in a different position, however, the movable exterior wall 28 is shifted to an intermediate position along the side wall 22, in which the movable exterior wall 28 fully rests against the side wall 22.

Figure 24 also shows a movable exterior wall 28 consisting of two wall elements 30, 32. The wall elements 30, 32 can also be separated from each other and each have a U-shaped bearing 44 along the two side walls 22.

Rather than a displacement transversely to the direction of extent of the movable exterior wall 28, it is also conceivable to displace the movable exterior wall 28 perpendicularly to its direction of extent, that is, in the vertical direction. As is apparent from the sectional views in Figures 25 and 26, the rails 46, 48 of the bearing 44 may each be arranged at a side wall 22 and extend from the outer closing position 52 over the ceiling plate 24 of the exterior wall system 10 to the inner closing position 50. In the exemplary embodiment illustrated in Figure 25, the rails 46, 48 include an additional switch point 66 at the ceiling plate 24, the movable exterior wall 28 being adapted to be shifted via this switch point to an intermediate position 56 along the ceiling plate 24.

Departing from this, in the embodiment shown in Figure 26 the rails 46, 48 are formed such that when the movable exterior wall 28 is shifted from the outer closing position 52 to the inner closing position 50, it completely rests against the ceiling plate 24 in an intermediate position 56.

The exterior wall system 10 according to the invention is suitable both for installation in new buildings and for installation in existing, older buildings, for example for renovation or refurbishment of the building. Moreover, appropriately designing the movable exterior wall 28 and/or the elements of the exterior wall system 10 which are visible from outside also allows the fagade of the building 12 to be changed later or redesigned.

Provided that the required ceiling heights and the required load-bearing capacity of the ceiling and the floor plate of the building 12 are available, any desired arrangement of the exterior wall system 10 in a building 12 is conceivable. By way of example, Figures 27a to 27f show various arrangements of the exterior wall system 10 in a building 12. In each of the exemplary embodiments illustrated here, the exterior wall system 10 is shown to terminate flush with the exterior shell of the building 12. But it is obvious that, regardless of its position in the building 12, the exterior wall system 10 according to the invention may also be configured to project over the outer shell of the building 12.

In Figure 27a, for example, the exterior wall system 10 is arranged in the ground floor of the building 12. The exterior space 16 may, for example, merge into a terrace area situated in front of the building here or, when the exterior wall system 10 has a projecting shape, it may form part of the terrace. In Figure 27b, the exterior wall system 10 is arranged in an upper floor of the building 12. In each of the Figures 27c and 27d, the exterior wall system 10 is arranged in the attic floor or top floor of the building 12. In the embodiment illustrated in Figure 27c, part of the roof of the building has been removed here and replaced by the ceiling plate 24 of the exterior wall system 10.

Furthermore, in the exemplary embodiment illustrated in Figure 27e, a ceiling between two floors of the building 12 has been removed, so that the exterior wall system 10 extends over several floors, in this case two, whereas the exemplary embodiment illustrated in Figure 27f is oriented facing an inner courtyard.

Claims (15)

An exterior wall system (10) for a building (12) comprising a movable outer wall (28) and a bearing (44) for the movable outer wall (28), wherein the movable outer wall (28) separates an interior space (14). from an accessible exterior compartment (16), is reversibly adjustable between at least two closure positions (50, 52, 58, 60) and is adjustable in each of the closure positions and in each of the closure positions (50, 52) delimiting the interior compartment (14 ) externally, and wherein the bearing (44) comprises at least one rail (46, 48) in which the movable outer wall (28) is slidably guided, the rail (46, 48) being formed such that the movable outer wall (28) ) is movable between an inner closing position (50) and an outer closing position (52), and in the outer closing position (52, 58, 60) at least a portion of the outer space (16) exits into the interior space (14). thus increasing its base surface, characterized in that the rail (46, 48) forms a path curve and extends along the path. d the floor and / or ceiling or rails are provided at the opposite sidewalls and each form a path curve and the movable outer wall (28) can travel along the path curve between its closing positions (50, 52, 58, 60) and through passage of the web curve can be adjusted in an intermediate position (56) in which it extends along one of the side walls defining at least sectionally the outer and inner walls, or along the ceiling, the outer space (16) and the inner space (14) in the intermediate position (56) completely transitions into each other. Exterior wall system according to claim 1, characterized in that the movable outer wall (28) comprises several movable, especially pivotally connected wall elements (30, 32, 34). Exterior wall system according to any one of the preceding claims, characterized in that the movable outer wall (28) comprises at least one window (38, 40) and / or a closed door (36) which optionally opens the interior space (14). ) to the outer space (16). Exterior wall system according to any one of the preceding claims, characterized in that the movable outer wall (28) is mounted horizontally or vertically displaceable. Exterior wall system according to any one of the preceding claims, characterized in that parallel rails (46, 48) are arranged (22) at the floor and / or the ceiling sectionally along opposite walls which are adjacent to the displaceable outer wall (28) and which at least partially delimiting the interior space (14) and the outer space (16). Exterior wall system according to any one of the preceding claims, characterized in that the outer wall as a whole is slidable along the path curve. Exterior wall system according to any one of the preceding claims, characterized in that the web curve extends U-shaped or curved. Exterior wall system according to any one of the preceding claims, characterized in that the outer wall system (10) comprises a motor drive and a control for moving the movable outer wall (28) from the outer closing position (52, 58, 60) to the inner closing position (50). Exterior wall system according to any of the preceding claims, characterized in that the exterior wall system (10) comprises a floor plate (18) and a ceiling plate (24) and the bearing (44) is provided on the ceiling plate (24) respectively. on the floor plate (22). Exterior wall system according to claim 9, characterized in that the outer wall system (10) comprises two opposing side walls (20) connecting the ceiling plate (24) and the floor plate (18) and / or that the floor plate (18), the ceiling plate (24) and the side walls (20) each form a self-supporting structure and each constitute a pre-assembled unit, which are formed as units which can preferably be subsequently mounted on a floor plate (19), ceiling plate (26) respectively. sidewalls (22) provided in the housing or may be mounted on the outside of the building wall. Exterior wall system according to any one of claims 9 and 10, characterized in that the floor plate (18), the ceiling plate (24) and the side walls (20) together form a prefabricated box-like unit which can subsequently be placed on an existing balcony, terrace or loggia or may be mounted exterior to a building wall, and, depending on the position of the movable outer wall (28), optionally expands an existing interior space (14). Exterior wall system according to any one of claims 9 to 11, characterized in that it comprises heating or cooling elements and / or water drainage channels, which are in particular integrated into the ceiling plate (24), the floor plate (18) and / or the side walls (20). A method of installing an exterior wall system according to any one of the preceding claims in an existing building (12) with the following steps: - fixing bearings (44) for the movable outer wall (28) on the existing building (12) adjacent to and / or in an existing interior compartment (14) which can be opened in the direction of an existing exterior compartment (16) and mounting of the movable outer wall (28) in the bearing (44) so that depending on the position of the movable outer wall (28), the existing interior space (14) can be optionally expanded, the bearing (44) being mounted on a floor plate (18), ceiling plate (24) and / or sidewall (20) which can subsequently be attached to the building (12), and thus attaching to the existing building (12). Method according to claim 13, characterized in that the floor plate (18), the ceiling plate (24) and the side walls (20) are pre-mounted to a box-like unit and this unit is mounted on a floor plate (19) provided in the housing and fixed to the building (12). ). Method according to claim 14, characterized in that the box-like unit is placed on an existing balcony or loggia.