NL2019789B1 - LAYERED INSULATION STRUCTURE - Google Patents

Abstract

A layered insulation structure comprising a first foil, a second foil, and a third foil, which has a flat state and an operative state, wherein an intermediate portion of the second foil, in the flat state, comprises at least one fold extending longitudinally, in the operative state, the second foil is below the first foil and an intermediate portion of the first foil can extend entirely and outer portions of the first foil at least partially in the horizontal plane, while the second foil intermediate portion and the outer portions of the second foil in a concave shape, viewed from the first foil, hang below the first foil intermediate portion and the outer portions of the first foil, respectively, to provide a first layer of three air chambers between the first foil and the second foil form.

Description

P33237NL00 / YGR / PGI

Brief indication: LAYERED INSULATION STRUCTURE

The present invention relates to a layered insulating structure comprising a plurality of films, the plurality of films comprising a first film, a second film, and a third film, which first film is intended for attachment to the underside of a substantially horizontal part of a building, such as a floor or flat roof.

A layered insulation structure that is currently commercially available is traded under the name TONZON ®. With reference to Figures 1A and 1B of the present application, this insulation (1000) comprises a first film (100), a second film (110), and a third film (120). A flat state and an active state can be defined for this insulation. Viewed in the flat state shown in Figure 1A, the films (100, 110, 120) are interconnected by means of a plurality of connecting lines (L11, L12, L13, L21, L22). The first foil (100) is attached to the second foil (110) by means of a plurality of first foil connecting lines (L11, L12, L13), which comprises three connecting lines (L11, L12, L13). The second film (110) is attached to the third film (120) by a plurality of second film connection lines (L21, L22), which comprises two connection lines (L21, L22). When viewed in the operative condition shown in Figure 1B, the second film (110) is located below the first film (100) with the ends of the first film (100) hanging down. Because the ends of the first film hang down in the operative condition, an upper layer of two air chambers (K1, K2) can form between the first film (100) and the second film (110). The third film (120) hangs under the second film (110) in the operative condition so that there is a lower layer with a third air chamber (K3) below the top layer of two air chambers (K1, K2). Stagnant air trapped in the air chambers (K1, K2, K3), i.c.m. the reflective foil ensures insulation of the structure under which the insulation is applied. The lower layer with the third air chamber (K3) herein forms an insulating buffer between the upper layer of the first (K1) and second air chamber (K2) on the one hand and the environment under the third air chamber (K3) on the other hand. A common application of the insulation is, for example, in crawl spaces.

It is an object of the invention to provide an improved layered insulation structure.

To that end, a layered insulation structure is provided according to claim 1.

On the one hand, the fold in the intermediate portion of the second foil provides the layered insulation structure according to the invention in the operative state - compared to the state of the art described with reference to Figure 1 - in one or more additional insulation chambers in the relevant layer of insulation chambers, while on the other hand, the fold allows the flat state to still be realized and thus, in the flat state, rollability of the layered structure according to the invention is still guaranteed. The additional insulation chamber in the relevant layer allows a higher insulation value, while in the active state the total height of the layered insulation structure does not increase significantly or only increases to a limited extent. The rollability in flat condition is of great importance for not only storage and transport, but also processability and manageability of the insulation structure. The insulation structure can be unrolled on location and cut or cut into strips of suitable length for placement under a horizontal part of a building.

The layered insulation structure comprises a plurality of reflective films, such as one-sided reflective films or two-sided reflective films. The films may, for example, be made partially or wholly from aluminum or another reflective material. The films may, for example, be made of polyester on which a layer of aluminum has been deposited. The films are preferably designed to be reflective at the top and at the bottom, but it is also possible that only the top or only the bottom is reflective. Preferably, all films are made of the same material, which preferably has a relatively low density. Preferably the films are relatively thin, such as thinner than 0.03 mm, more in particular thinner than 0.02 mm.

The foils extend in a longitudinal direction and are mutually connected by means of a plurality of longitudinally extending connecting lines. The connecting lines may, for example, be welded seams, or may comprise an adhesive layer, such as an adhesive layer.

A flat state and an active state can be defined for the layered insulation structure. In the operative condition, for example, stationary air can be present between the different layers of film, so as to provide a better insulation effect, while in the flat condition the films can for example lie flat against each other in order to occupy as little space as possible and be transported easily could be.

In the flat condition, the films lie essentially flat on each other and the films can be rolled up in a roll. The provision of a plurality of films which form air chambers in the active state but lie substantially flat on top of each other in the flat state can cause difficulties in the design of the layered insulating structure. The locations of the connecting lines should preferably be chosen such that the films lie tightly and flat one above the other in the flat state of the layered insulating structure, preferably without wrinkles in the films and preferably with longitudinal sides of the films that align above each other . Then different sheets of the layered insulating structure can be attached to each other with longitudinal sides, and for example be rolled up in a roll. Such a layer with a layered insulating structure allows a large amount of layered insulating structures to be easily transported, and when applying the layered insulating structure, for example in a crawl space or under a roof construction, to cut or cut a web off the roll whenever necessary cut off.

The plurality of films comprises an upper first film intended for attachment to the underside of a substantially horizontal part of a building, such as a floor, a garage, a cellar, or flat roof, a second film, and a third film. Viewed in the flat state, the second foil is provided between the first foil and the third foil.

Viewed in the flat state, the plurality of connecting lines includes first foil connecting lines along which the first foil is attached to a lower foil, second foil connecting lines along which the second foil is attached to an upper foil, and third foil connecting lines along which the third foil is attached to an upper foil. The connecting lines are preferably relatively flat, for example with a thickness that is smaller than the thickness of the foil, in order to reduce the space occupied by the layered insulating structure in the flat state. As mentioned earlier, the connecting lines can be weld seams or tack seams. According to the invention, the connecting lines will in particular be continuous connecting lines so that heat leakage along a connecting line is prevented, but also interrupted connecting lines are conceivable in particular in the case of internal connecting lines where heat leakage between the chambers is limited.

In certain embodiments, the third foil is directly attached to the second foil. In other embodiments, the third foil can be directly attached to the first foil.

In certain embodiments, the second film is directly attached to the first film. In other embodiments, a film, for example a sixth film, may be arranged between the first and the second film, the second film being attached to the sixth film and the sixth film being attached to the first film.

The first film connection lines, considered in the flat state, comprise two outer first film connection lines and at least one intermediate first film connection line, which, viewed in the flat state, is provided between the outer first film connection lines.

The second film connection lines, considered in the flat state, comprise at least four connection lines, which can be subdivided into two outer second film connection lines and at least two intermediate second film connection lines. The at least two intermediate second-film connection lines are then provided, viewed in the flat state, between the outer second-film connection lines.

In certain embodiments, for example when the second foil is arranged directly below the first foil, the first foil connecting lines and the second foil connecting lines can be the same connecting lines, such connecting lines securing the first foil to the second foil on the one hand, and on the other attach the second foil to the first foil.

The third-film connection lines, considered in the flat state, comprise at least two connection lines: two outer third-film connection lines. The two outer second foil connection lines and the two outer third foil connection lines can lie on top of each other and then, as it were, coincide.

Two neighboring intermediate second-film connecting lines each bound a second-film intermediate part, while each of said outer first-film connecting line and the adjacent intermediate first-film connecting line each bound an outer part of the first film, and while each of said outer second-film connection lines and an adjacent second-film connection line adjacent thereto in each case bound an outer part of the second film.

Viewed in the flat condition, the second film intermediate portion comprises at least one fold, which fold extends in the longitudinal direction. By providing a fold in the second film intermediate part, the second film intermediate part can be relatively wide, for example with respect to a first film intermediate part, while, seen in a direction transverse to the longitudinal direction, the ends of the the first foil and the second foil can be provided in a flat state one above the other. The width of the second film can be wider than the width of the first film. In the operative state, the fold unfolds, so that the second film intermediate portion hangs in a concave shape with respect to the first film intermediate portion, and forms an air chamber.

In the operative state, the second foil is below the first foil and the outer portions of the first foil can extend at least partially in the horizontal plane, while the second foil intermediate portion (or, if present, the second foil intermediate portions and the outer portions of the second film in a concave shape, viewed from the first film, hang below the first or overlying film to form a layer of air chambers between the first film and the second film. The concave shape of the second film intermediate portions can be formed by the fold unfolding in the operative condition, the intermediate portion hanging out, and forming a concave shape. The second film intermediate part thus has, as it were, a surplus of material, viewed in the width direction, which, under the influence of gravity, starts to hang in the operative condition and forms a concave shape. The concave shapes of the outer portion of the second foil can be formed in that, in the operative condition, the outer portions of the first foil extend only partially in the horizontal plane, and hang down with another portion.

In one embodiment, a fourth air chamber forms between the second film and the third film in the operative condition. The third foil can also hang out and assume a concave shape. In another embodiment, a plurality of air chambers can form, for example, between the second and third films.

In further embodiments, apart from the second film intermediate part, other parts of the layered insulating structure in the flat state can also be provided with a fold extending in the longitudinal direction, for example one or both outer parts of the second film can be of one or more such folds are provided. In that case it is preferable if the different folds, viewed in a direction transverse to the longitudinal direction and transverse to the width direction, ie in a thickness direction, in the flat state of the layered insulating structure, are provided at a mutual distance from each other, that that is, when the different folds, viewed in a thickness direction in the flat state of the layered insulating structure, are not arranged one above the other.

On the one hand, the layered insulation structure provides more and smaller air chambers than the well-known layered insulation structure of TONZON ®. On the other hand, slightly more film can be provided per unit width, because the second film intermediate part is relatively wide with respect to the first film. Due to each of these effects and / or a combination thereof, a higher insulation value, expressed in m2W / K, is provided than with the layered insulation structure of TONZON ®.

The stationary air trapped in a preferably reflective film insulates the structure from which the layered insulating structure is suspended. The air chambers provided near the warm side of the layered insulation structure contain warmer air, while air chambers provided more near the cold side of the layered insulation structure contain colder air. Because the air chambers are separated by a foil, heat transfer from the cold air chambers to the warm air chambers is made more difficult, and an insulation is formed. This way, multiple buffer layers of air chambers can arise. When the air chambers are smaller, the air flow through the air chambers can be less, and heat exchange between the air chambers can be reduced, resulting in a higher insulation value.

In one embodiment, the second foil is located directly below the first foil and is thus fixed along the second foil connecting lines, two adjacent, intermediate second foil connecting lines define a first foil intermediate part, measured transversely to the longitudinal direction, the width of the second film intermediate part greater than the width of the first film intermediate part and, in the active state, the first film intermediate part (or, if present, the first film intermediate parts) can be entirely extend in the horizontal plane.

A first outer portion of the first foil and a first outer portion of the second foil, for example a right outer portion, may be bounded by one of the two outer second-foil joining lines and an adjacent intermediate second-foil joining line, and a second outer portion of the first foil and a second outer portion of the second foil, for example a left outer portion, may be bounded by the other of the two outer second-foil joining lines and an adjacent intermediate second-foil joining line. A first film intermediate part and a second film intermediate part are then bounded by two adjacent intermediate second film connecting lines. Depending on the number of intermediate second film connecting lines, there may be more or fewer first film intermediate sections and second film intermediate sections.

In one embodiment, the layered insulating structure comprises two intermediate second-film connecting lines, one first-film intermediate part, and one second-film intermediate part.

In another embodiment, the layered insulating structure comprises three intermediate second-film connecting lines, two first-film intermediate sections, and two second-film intermediate sections.

In yet another embodiment, the layered insulation structure comprises four intermediate second-film connecting lines, three first-film intermediate parts, and three second-film intermediate parts.

In one embodiment, in the operative state, a first air chamber can form between a first outer portion of the first foil and a first outer portion of the second foil, a second air chamber between the first foil intermediate portion and the second foil intermediate portion, and a third air chamber between a second outer portion of the first foil and a second outer portion of the second foil.

In a further embodiment, the at least one fold in the second film intermediate section is a zigzag fold. In the flat state, then, at the location of the fold, three layers of the film are arranged one above the other in the second film intermediate part, in a section in the thickness direction of the layered insulating structure. A zigzag fold can be easier to produce than other types of folds, and moreover is relatively easy to unfold when the layered insulation structure is brought into the operative state.

In a further embodiment, the at least one fold is provided in the second-film intermediate section at a said intermediate second-film connection line. In this way, the weight of the second film intermediate part, and the air that forms between the layers during the active state of the layered insulation structure, contribute maximally to the second film intermediate part hanging out in the convex shape.

In a further embodiment, the at least one fold in the second film intermediate section comprises two of those folds. Two folds in the second film intermediate section provides a more even distribution of overlap zones when the layered insulation structure is in the flat state. For example, a first of the two folds may be provided near a first one of the at least two intermediate second-film joining lines, while a second of the two folds may be provided near a second one of the at least two intermediate second-film joining lines.

In a further embodiment, the third-film connection lines further comprise at least one intermediate third-film connection line, which, viewed in a flat state, is provided between the outer third-film connection lines, which at least one intermediate third-film connection line is the third foil attached to an upper foil. By providing at least one intermediate third foil connecting line, in the operative state, two air chambers can be formed between the second foil and the third foil, so that a fourth air chamber and a fifth air chamber are formed between the second foil and the third foil. Such an additional air chamber contributes to a higher insulation value of the layered insulation structure.

In a further embodiment, the at least one intermediate third film connecting line fixes the third film to the center of said second film intermediate part. This has at least two advantages. Firstly, as already mentioned above, in the operative condition two air chambers will be formed between the second foil and the third foil. In this embodiment, these two air chambers between the second foil and the third foil are preferably of substantially the same size, so that a uniform insulation value is obtained, viewed in a direction transverse to the longitudinal direction of the layered insulation structure. Secondly, the weight of the third film in this embodiment, wherein the third film is attached to the second film intermediate part, ensures that the second film intermediate part in the operative condition of the layered insulating structure will hang out in the desired concave shape, in that the third foil, when it starts to hang, pulls the second foil intermediate part, as it were, in a direction away from the first foil.

In a further embodiment, viewed in a direction transverse to the longitudinal direction and measured between the outer third-film connection lines, the width of the third film is equal to the width of the first film. In a flat state of the layered insulating structure, it is then not necessary to provide folds in the first foil and / or the third foil, which makes it easier to bring the layered insulating structure into a flat state, for example during its production. .

In a further embodiment, the outer second foil connection line is always above the outer third foil connection line, on each longitudinal side of the insulation structure, viewed in the flat state and in a direction transverse to the longitudinal direction and transversely to the width direction of the insulation structure. In such an embodiment, the third foil can be connected to the second foil, and the longitudinal sides of the first foil, the second foil, and the third foil, viewed in a direction transverse to the longitudinal direction, can lie approximately one above the other.

In another embodiment, the outer second-film connection line is in each case offset in the direction of the intermediate second-film connection line relative to the outer third-film connection line, on each longitudinal side of the insulation structure, viewed in the flat state and in a direction transverse to the longitudinal direction and transverse to the width direction of the insulation structure. In such an embodiment, the third foil can be connected to the first foil, and the ends of the first foil and the third foil, viewed in a direction transverse to the longitudinal direction, can lie approximately above each other, while ends of the second foil, seen in a direction transverse to the longitudinal direction, may have been more shifted in the direction of the intermediate second film connecting lines.

In a further embodiment, the plurality of foils further comprises a fourth foil, wherein, viewed in the flat state, the third foil is provided between the second foil and the fourth foil, the plurality of connecting lines, viewed in the flat state, furthermore a plurality of fourth comprises foil connecting lines along which the fourth foil is attached to an upper foil, and wherein the fourth foil connecting lines, when viewed in a flat state, comprise two outer fourth foil connecting lines. By applying a fourth film, more film material is provided, and a higher insulation value can be achieved. Also, in further embodiments, in the operative state of the layered insulating structure, an additional air chamber can be formed between the third foil and the fourth foil. This will be the case, for example, when the third film with at least one intermediate third film connection line is connected to a second film intermediate part, and the fourth film hangs below the third film in a concave shape. A higher insulation value can be achieved by forming an additional air chamber and thus an additional buffer layer.

In a further embodiment, the width of the fourth foil is equal to the width of the third foil and / or the first foil, viewed transversely to the longitudinal direction and measured between the outer fourth-foil connecting lines. If the fourth film is the same width as the third film and / or the first film, then it is not necessary to make folds in the third film and / or the fourth film in the flat state of the layered insulating structure.

In another embodiment, the width of the fourth film is greater than the width of the third film, viewed transversely of the longitudinal direction. The outer third-film connection lines may then, for example, be somewhat shifted in the direction of the intermediate first-film connection lines and / or the intermediate third-film connection lines, with respect to the outer fourth-film connection lines. The fourth foil can then for instance be attached to the second foil or to the first foil. Preferably, the third and fourth films are shorter than or as wide as the first film, measured in a direction transverse to the longitudinal direction of the layered insulating structure, in order to be able to store the first, third and fourth film all without fold in the flat condition.

In a further embodiment, the outer third-film connection line, on each longitudinal side of the insulation structure, lies above the outer fourth-film connection line, viewed in the flat state and in a direction transverse to the longitudinal direction and transversely to the width direction of the insulation structure.

In a further embodiment, the plurality of foils further comprises a fifth foil, wherein, viewed in the flat state, the fifth foil is provided between the third foil and the fourth foil, and wherein the plurality of connecting lines, viewed in the flat state, furthermore fifth foil connecting lines, which comprises at least two upper fifth foil connecting lines along which the fifth foil is attached to the third foil. The provision of a fifth film between the third and fourth film makes it possible to provide additional air chambers in the operative condition, whereby a higher insulation value can be achieved. The addition of an extra layer of foil can also result in higher insulation values. More specifically, by providing a fifth foil between the third foil and the fourth foil, in the operative state, at least one air chamber can be formed between the third foil and the fifth foil, at least one air chamber between the fifth foil and the fourth foil foil, and at least two air chambers between the third foil, the fourth foil, and the fifth foil. An additional buffer layer is also provided, which can increase the insulation value of the layered insulation structure.

In a further embodiment, viewed in the flat state, two of those at least two upper fifth-film connection lines are provided on either side of said intermediate third-film connection line and the distance measured transversely to the longitudinal direction between an adjacent set of said at least two upper fifth-film connecting lines, along the surface of the third film, equal to the distance, along the surface of the fifth film. In other words, the foil portions of the third foil and the fifth foil can be of the same length between the two upper fifth foil connecting lines.

In a further embodiment, the fifth foil connecting lines further comprise two outer lower fifth foil connecting lines along which the fifth foil is attached to the fourth foil and the at least two upper fifth foil connecting lines, viewed in the flat state, are between the two outer lower fifth-film connecting lines, and the fifth foil, viewed in the flat state, is provided in each case between each of the outer lower fifth-foil connecting lines and the neighboring upper fifth-foil connecting line with a longitudinally extending fold , such as a zigzag fold. Such a fold provides additional material to the fifth film, viewed in a width direction, and can make it easier to bring the layered film structure into a flat state.

In a further embodiment, the plurality of fifth foil connecting lines further comprises at least one intermediate lower fifth foil connecting line along which the fifth foil is attached to the fourth foil and the at least one intermediate lower fifth foil connecting line is situated, viewed in the flat state between two of the at least two upper fifth film connecting lines. By providing an intermediate lower fifth film connection line, an additional air chamber can be provided between the fourth film and the fifth film in the operative condition, as a result of which the insulation value of the layered insulation structure can be further increased.

In a further embodiment, the plurality of films comprises a sixth film which, viewed in the flat condition, is provided between the first film and the second film. The sixth film can, for example, be located directly below the first film and directly above the second film. The plurality of connecting lines, considered in the flat state, comprise sixth foil connecting lines along which the sixth foil is attached to an upper foil, for example the first foil. The sixth foil connecting lines and the first foil connecting lines can be the same connecting lines.

In embodiments, the sixth foil connecting lines comprise one intermediate sixth foil connecting line, whereby in the operative state two chambers can be formed between the first foil and the sixth foil.

Further embodiments are conceivable in which, by displacing connecting lines and / or adding films and / or adding one or more longitudinally extending folds in sections of one or more films, a larger number of air chambers can be formed and / or a higher insulation value can be achieved.

The invention further relates to an assembly of a floor and an insulation structure according to the above, wherein the insulation structure is attached to the underside of the floor.

The invention further relates to an assembly of a flat roof and an insulation structure according to the above, wherein the insulation structure is attached to the underside of the flat roof.

The present invention is explained in more detail below with reference to drawings. Herein: - Figure 1A schematically shows a cross-section in flat condition of an insulation structure according to the prior art; Figure 1B schematically shows a cross-section of the insulation structure according to Figure 1A in an active state; Figure 2A schematically shows a cross-section in flat condition of an insulation structure according to a first embodiment of the invention; Figure 2B schematically shows a cross-section of the insulation structure according to Figure 2A in an active state; Figure 3A schematically shows a cross-section in flat condition of an insulation structure according to a second embodiment of the invention; Figure 3B schematically shows a cross-section of the insulation structure according to Figure 3A in an active state; Figure 4A schematically shows a cross-section in flat condition of an insulation structure according to a third embodiment of the invention; Figure 4B schematically shows a cross-section of the insulation structure according to Figure 4A in an active state; Figure 5A schematically shows a cross-section in flat condition of an insulation structure according to a fourth embodiment of the invention; Figure 5B schematically shows a cross section of the insulation structure according to Figure 5A in an operative state; Figure 6A schematically shows a cross-section in flat condition of an insulation structure according to a fifth embodiment of the invention; Figure 6B schematically shows a cross-section of the insulation structure according to Figure 6A in an active state; Figure 7 shows diagrammatically in cross-section the insulation structure according to figures 3A and 3B mounted under a horizontal part of a building.

Figures 1A and 1B show a known layered insulation structure 1000. This insulation structure 1000 comprises three layers 100, 110, 120. A first layer 100 is connected to a second layer 110 and the second layer by first-foil connecting lines L11, L12, L13 110 is connected to the third layer 120 by second film connecting lines L21, L22. Figure 1A shows a flat state of the insulation structure 1000, in which the films 100, 110, 120 lie flat on top of each other. Figure 1B shows an active state of the insulation structure 1000, with air chambers K1, K2, K3 being formed between the films 100, 110, 120.

Figures 2A, 2B, 3A, 3B, 4A, 4B, 5A, 5B, 6A, and 6B show different embodiments of the layered insulation structure 2000, 3000, 4000, 5000, 6000 according to the invention. The layered insulating structure has a flat state, always shown in Figures 2A, 3A, 4A, 5A 6A for the different embodiments, and an active state, always shown in Figures 2B, 3B, 4B, 5B, 6B for the different embodiments. It should be noted that, for the sake of clarity of the figures, not all reference numerals are always drawn in all figures. It should further be noted that the same reference numerals always refer to the same or a comparable part of the insulation structure.

With reference to Figs. 2A, 2B, 3A, 3B, 4A, 4B, 5A, and 5B, 6A, 6B, a layered insulation structure 2000, 3000, 4000, 5000, 6000 is shown, comprising a plurality of reflective films 1, 2 3, 4, 5, 6, 7, 8 which extend in a longitudinal direction and are mutually connected by means of a plurality of longitudinal connecting lines. Although the connecting lines in the cross-sections shown appear to be point connections, in the shown embodiments the connecting lines extend uninterruptedly over the entire length of the films 1, 2, 3, 4, 5, 6, 7, 8 so that each connecting line, over the length of the films, is tight and prevents heat leakage via the connecting line. Optionally, one or more of the connecting lines, possibly even all connecting lines, may be interrupted connecting lines. The connecting lines are preferably arranged in a straight line.

In the figures shown, the connecting lines are always shown at a distance from the nearby respective foil. This is done to clarify the figures.

In practice, a connecting line will be attached to a film directly above and a film directly below.

It is further noted that the connecting lines are drawn relatively thick relative to the thickness of the foil. This too is for clarification of the figures. In practice, a connecting line can also be thinner than a foil. The connecting line is preferably thinner than the foil.

It is further noted that connection techniques of films are known in which no clear connection line can be identified. Such connections between the films also fall under the invention, for example connections in which the films are fused together along a connecting line.

In the flat state, the films 1, 2, 3, 4, 5, 6, 7, 8 lie essentially flat on each other. Although this is not shown, the films can be rolled into a roll. A web of the layered insulating material can for instance be connected along a transverse side to a next web of the layered insulating material, for example via a tear line, whereby a row of webs of laminated insulating material is created. This row of jobs can be rolled into a roll.

The plurality of films 1, 2, 3, 4, 5, 6, 7, 8 comprises an upper first film 1 intended for attachment to the underside of a substantially horizontal part of a building, such as a floor or flat roof. This is shown in Fig. 7, which is discussed later. The plurality of films 1, 2, 3, 4, 5, 6, 7, 8 further comprises a second film 2 and a third film 3.

Viewed in the flat condition, the second foil 2 is provided between the first foil 1 and the third foil 3.

The plurality of connecting lines, viewed in the flat state, comprise first foil connecting lines P11, P12, P13, P14 along which the first foil is attached to an underlying foil 2, 6; second film connecting lines P21, P22, P23, P24 along which the second film 2 is attached to an upper film 1, 9; and third film connecting lines P31, P32, P33 along which the third film 3 is attached to an upper film 1, 2, 6, 7, 8).

Viewed in the flat state, the first foil connecting lines comprise two outer first foil connecting lines P11, P12 and at least one intermediate first foil connecting line P13, P14, which, viewed in the flat state, between the outer first foil connecting lines P11, P12 are provided.

The second film connection lines P21, P22, P23, P24 comprises, viewed in the flat state, two outer second film connection lines P21, P22 and at least two intermediate second film connection lines P23, P24 which, viewed in the flat state, between the outer second-film connecting lines P21, P22 are provided.

As can be seen in Figures 2-5, the first film connection lines P11, P12, P13, P14 and the second film connection lines P21, P22, P23, P24 can be the same connection lines. The second foil 2 is then, for example, located directly below the first foil 1

As can be seen in Figure 6, the first film connection lines P11, P12, P13, P14 and the second film connection lines P21, P22, P23, P24 can also be different connection lines. For example, a sixth film 6 can then be located between the first film 1 and the second film 2. The sixth film 6 is located here directly below the first film 1 and directly above the second film 2. In this case, the first film is connecting lines P11, P12, P13 and the sixth foil connecting lines P61, P62, P63 the same.

Two neighboring, intermediate second-film connecting lines P23, P24 in each case define a second-film intermediate part 10.

Each of said outer second film connecting lines P21, P22 and the adjacent second film connecting line P23, P24 adjacent thereto in each case defines an outer portion 13, 14 of the second foil 2, while each of said outer first foil lines connecting line P11, P12 and the adjacent first-foil connecting line P13, P14 adjoining in each case an outer portion 11, 12 of the first foil.

The third film connecting lines P31, P32, P33 comprises, viewed in the flat state, two outer third film connecting lines P31, P32.

Figures 2A, 2B, 3A, 3B, 4A, 4B, 5A, 5B, 6A, 6B show how the third film 3 is attached to the second film 2, with longitudinal sides of the second film 2 and the third film 3 at the top lie in the flat state. It is however conceivable that longitudinal sides of the second foil 2 do not extend all the way to the longitudinal sides of the first foil 1 and the third foil 3, but more towards the center of the insulation structure 2000, 3000, 4000, 5000 in the direction of the intermediate second film connection line P23, P24, and that the outer second film connection lines P21, P22 are shifted more inwards relative to the outer third film connection lines P31, P32. The third foil 3 can then be connected to the first foil 1 with the outer third foil connecting lines P31, P32.

Viewed in the flat state of Figures 2A, 3A, 4A, 5A, and 6A, the second film intermediate portion 10 comprises at least one fold 15, 16 extending longitudinally.

In Figs. 2A, 3A, 4A, 5A, and 6A, the at least one fold 15, 16 in the second film intermediate portion 10 is a zigzag fold. More in particular, the at least one fold 15, 16 in the second film intermediate section comprises two of those zigzag folds.

In Figs. 2A, 3A, 4A, 5A, and 6A, both folds 15, 16 are provided in the second-film intermediate section 10 near a said intermediate second-film connection line P23, P24.

In the operative condition shown in Figures 2B, 3B, 4B, 5B, and 6B, the second film 2 is located below the first film 1, inner parts of the outer parts 11, 12 of the first film extend in the horizontal plane while the outer portions of the outer portions 11, 12 of the first foil are hanging vertically and the second foil intermediate portion 10 and the outer portions 13, 14 of the second foil 2 in a concave shape as seen from the first foil 1 the upper film, that is the first film 1 or the sixth film 6, hang out to form a layer of air chambers C11, C12, C13 between the first film 1 and the second 2 film.

With reference to Figs. 2A, 2B, 3A, 3B, 4A, 4B, 5A, 5B, it is visible how the second foil 2 is located directly below the first foil 1 and is thus attached along the second foil connecting lines P21, P22, P23, P24.

Two adjacent, intermediate second-film connecting lines P23, P24 define a first-film intermediate portion 9.

Measured transversely to the longitudinal direction of the insulation structure, the width of the second foil intermediate portion 10 is greater than the width of the first foil intermediate portion 9.

In the operative condition shown in Figures 2B, 3B, 4B, 5B, the intermediate portions 9 of the first foil 1 can extend entirely in the horizontal plane.

The first air chamber C11 is thus bounded by an outer part 11 of the first film 1 and an outer part 13 of the second film 2. Alternatively, the first air chamber C11 is defined by the film parts 11,13 between an outer second film connection line P21 and an adjacent intermediate second film joining line P23.

The second air chamber C12 is thus bounded by a first foil intermediate section 9 and a second foil intermediate section 10. Alternatively, the second air chamber C12 is defined by the foil sections 9, 10 between a first intermediate second foil connecting line P23 and a second intermediate second film connection line P24.

The third air chamber C13 is thus bounded by an outer part 12 of the first film 1 and an outer part 14 of the second film 2. Alternatively, the third air chamber C13 is defined by the film parts 12, 14 between an outer second film connection line P22 and an adjacent intermediate second film joining line P24.

In the embodiment according to Figure 2, below the first air chamber layer with air chambers C11, C12, C13 a second air chamber layer with a single air chamber, called fourth air chamber C2, is formed between the second foil 2 and the third foil 3. Viewed from the first film 1 hangs the third film 3 in a concave shape to form a second layer with an air chamber C2. The fourth air chamber C2 is bounded by the first foil 2 and the third foil 3. In other words, the fourth air chamber C2 is defined between the outer third foil connecting lines P31, P32 and the intermediate second foil connecting lines P23, P24.

Viewed transversely to the longitudinal direction and measured between the outer third-film connection lines P31, P32, the width of the third film 3 is equal to the width of the first film 1.

Viewed in the flat state and in a direction transverse to the longitudinal direction and transverse to the width direction of the insulation structure, the outer second-film connection line P21, P22 is in each case above the outer third-film connection line P31, P32 on each longitudinal side of the insulation structure 2000, 3000, 4000, 5000.

Referring to Figures 3A, 3B, 4A, 4B, 5A, and 5B, the third-film connection lines P31, P32, P33 further include an intermediate third-film connection line P33 which, viewed in the flat state, between the outer thirds foil connecting lines P31, P32 is provided, which intermediate third foil connecting line P33 fixes the third foil 3 to a said second foil intermediate part 10.

Thus, the insulation structure 3000, 4000, 5000 obtains a second air chamber layer with two air chambers, viz. A fourth air chamber C21 and a fifth air chamber C22. The fourth air chamber C21 is bounded by an outer portion 13 of the second foil 2, a second foil intermediate portion 10, and the third foil 3. The fifth air chamber C22 is bounded by an outer portion 14 of the second foil 2, a second foil intermediate portion 10, and the third foil 3. In other words, the fourth air chamber C21 is defined by the foil portions between an outer third foil connecting line P31, an intermediate third foil connecting line P33, and an intermediate second foil connecting line P23 and the fifth air chamber C22 is defined by the film portions between an outer third-film connecting line P32, an intermediate third-foil connecting line P33, and an intermediate second-foil connecting line P24.

The intermediate third film connection line P33 fixes the third film 3 to the center of the second film intermediate part 10, so that the fourth air chamber C22 and the fifth air chamber C23 are of the same size.

The plurality of foils 1, 2, 3, 4, 5 further comprises a fourth foil 4, wherein, viewed in the flat condition, the third foil 3 is provided between the second foil 2 and the fourth foil 4, the plurality of connecting lines considered in the flat state, further comprises a plurality of fourth film connecting lines P41, P42 along which the fourth film 4 is attached to the third film 3, and wherein the fourth film connecting lines P41, P42, viewed in the flat state, are two outer fourth include foil connecting lines P41, P42.

Thus, the insulation structure 3000, 4000, 5000 comprises a third air chamber layer with one or more air chambers formed between the third foil 3 and the fourth foil 4.

In the embodiment according to Figure 3, the third air chamber layer comprises a single air chamber, called the sixth air chamber C3, which is bounded by the third foil 3 and the fourth foil 4. In other words, the sixth air chamber C3 can be defined by the foil portions between the fourth film connection lines P41, P42 and the intermediate third film connection line P33.

Incidentally, the fourth foil 4 can also be attached to the second foil 2 or to the first foil 1, instead of to the third foil 3, for example in a manner comparable to how the third foil 3 can be attached to the first foil 1 , and what has been described in more detail above.

Viewed across the longitudinal direction and measured between the outer fourth film connection lines P41, P42, the width of the fourth film 4 is equal to the width of the third film 3.

Viewed in the flat state and in a direction transverse to the longitudinal direction and transverse to the width direction of the insulation structure, the outer third-film connection line P31, P32 is in each case above the outer fourth-film connection line P41, P42 on each longitudinal side of the insulation structure 3000, 4000, 5000.

Referring to Figures 4A, 4B, 5A, and 5B, the plurality of films 1,2,3,4,5 further comprises a fifth film 5, wherein, viewed in the flat condition, the fifth film 5 is provided between the third film 3 and the fourth foil 4, and wherein the plurality of connecting lines, viewed in the flat state, further comprises a plurality of fifth foil connecting lines P51, P52, P53, P54, P55, comprising at least two upper fifth foil connecting lines P53, P54 along which the fifth foil 5 is attached to the third foil 3. By means of this fifth foil 5 the third air chamber layer can be subdivided into several air chambers C31, C32, C33, C34, C35, C36.

The embodiment according to Figure 4 thus has a sixth air chamber C31, a seventh air chamber C32, an eighth air chamber C33, and a ninth air chamber C34, all of which are formed between the third film 3 and the fourth film 4. More specifically, the sixth air chamber C31 formed at an angle of the insulating structure 4000, 5000 between the third foil 3, the fourth foil 4, and the fifth foil 5, the seventh air chamber C32 is formed between the third foil 3 and the fifth foil 5, the eighth air chamber is C33 formed at an angle of the insulation structure 4000, 5000 between the third film 3, the fourth film 4, and the fifth film 5, and the ninth air chamber C34 is formed between the fourth film 4 and the fifth film 5.

Viewed in the flat state, two of those at least two upper fifth-film connecting lines P53, P54 are provided on either side of said intermediate third-foil connecting line P33, and the distance measured transversely to the longitudinal direction between an adjacent set of said at least two upper fifth-film connecting lines P53, P54 along the surface of the third film 3 equal to the distance along the surface of the fifth film 5.

The plurality of fifth film connection lines P51, P52, P53, P54, P55 further comprises two outer lower fifth film connection lines P51, P52 along which the fifth film 5 is attached to the fourth film 4. The at least two upper fifth-film connecting lines P53, P54 are located, viewed in the flat state, between the two outer lower fifth-film connecting lines P51, P52, wherein, viewed in the flat state, the fifth foil 5, in each case between each of the outer lower fifth film connection lines P51, P52 and the neighboring upper fifth film connection line P53, P54 are provided with a longitudinally extending fold 17, such as a zigzag fold.

With reference to the embodiment according to Figures 5A and 5B, the plurality of fifth film connecting lines P51, P52, P53, P54, P55 can further comprise an intermediate lower fifth film connecting line P55 along which the fifth film 5 is attached to the fourth film 4 . The at least one intermediate lower fifth-film connection line P55 is situated, viewed in the flat state, between two of the at least two upper fifth-film connection lines P53, P54.

Because the fifth film is attached to the fourth film along two connecting lines and is attached to the third film along two connecting lines, the hanging of the films in the active state is promoted. The fourth foil pulls the third foil and the fifth foil down, as it were, and the third foil in turn pulls the second foil downwards.

Thus, in the third air chamber layer, an additional air chamber is created by splitting the air chamber 34 of the embodiment according to Figure 4 into a ninth air chamber C35 and a tenth air chamber C36. The ninth air chamber C35 is formed by the film portions between the intermediate lower fifth film connecting line P55, the outer lower fifth foil connecting lines P52, and the outer upper fifth foil connecting lines P54 and the tenth air chamber C36 is formed by the foil sections between the intermediate lower fifth foil connecting line P55, the outer lower fifth foil connecting lines P51, and the outer upper fifth foil connecting lines P53. Because the fifth film is now attached to the fourth film along 3 connecting lines, the correct hanging of the films in the active state is further promoted.

Referring now to Figures 6A and 6B, an embodiment of the insulation structure is shown in which the plurality of films 1, 2, 3, 4, 5, 6, 7, 8 comprises a sixth film 6 which, viewed in the flat state, is arranged between the first foil 1 and the second foil 2. The plurality of connecting lines, considered in the flat state, comprises sixth foil connecting lines P61, P62, P63 along which the sixth foil 6 is attached to the first foil 1. Thus, two air chambers C61, C61 are formed between the first film 1 and the sixth film 6.

In Figures 6A and 6B, the sixth foil 6 is connected to the first foil 1 with a single intermediate sixth foil connecting line P63. However, the sixth foil 6 can be attached to the first foil 1 with several intermediate sixth foil connecting lines. A fold (shown), or multiple folds (not shown) can be arranged in the flat state in the sixth film 6.

Also visible in Figures 6A and 6B is a seventh foil 7, which is arranged between the second foil 2 and the third foil 3. In other words, the seventh film 7 is located between the first film 1 and the third film 3.

More specifically, the seventh film 7 is attached to the sixth film 6 and the third film 3 by seventh film connection lines P71, P72, P73, P74. The plurality of connection lines comprises seventh film connection lines P71, P72, P73, P74; two outer seventh foil connecting lines P71, P72 along which the seventh foil 7 is attached to the third foil 3 and two intermediate seventh foil connecting lines P73, P74, along which the seventh foil is connected to the second foil 2.

The seventh foil 7 is connected to outer portions of the second foil 2 by means of two intermediate seventh-foil connecting lines P73, P74. It is conceivable, but not shown, that the seventh foil 7 is provided by a third intermediate seventh-foil connecting lines, or by a a few intermediate seventh film connecting lines, is attached to an intermediate part of the second film 2.

Additional air chambers C71, C72, C73 are formed in Figures 6A and 6B between the seventh film 7 and the second film 2.

Also visible in Figures 6A and 6B is an eighth film 8, which is arranged between the seventh film 7 and the third film 3. In other words, the eighth film 8 is located between the second film 2 and the third film 3.

More specifically, the eighth foil 8 is attached to the seventh foil 7 and the third foil 3 by means of eighth foil connecting lines P81, P82, P83. The plurality of connecting lines comprises eighth foil connecting lines P81, P82, P83; two outer eighth foil connecting lines P81, P82 along which the eighth foil 8 is attached to the third foil 3 and one intermediate eighth foil connecting lines P83, along which the eighth foil is connected to the seventh foil 7.

The eighth film 8 comprises a single fold, in Figure 6A, 6B to the right of the intermediate eighth film connection line P83. The eighth foil 8 may further comprise a second fold, for example in Figs. 6A, 6B to the left of the intermediate eighth foil connecting line P83.

Additional air chambers C81, C82 are formed in figures 6A and 6B between the eighth film 8 and the seventh film 7.

Further visible in Figures 6A and 6B is that the seventh film 7 and the eighth film 8 are somewhat shorter than the other films 1, 2, 3, 6. The longitudinal sides of the third film 3 are for instance connected to the second film 2 while the end of the seventh film 7 has been shifted somewhat inwards relative to the third film 3 and the second film 2. Relative to the seventh film 7, the ends of the eighth film 8 are shifted further inwards.

Shown are only a few possible exemplary embodiments of the insulation structure. Many other embodiments are conceivable by adding, removing and / or moving connecting lines, folds, and / or films.

With reference to Figure 7, an assembly of two layered insulation structures 3000 as shown in Figure 3 is shown. The two layered insulating structures 3000 are interconnected at their longitudinal sides and attached to each other by means of fastening means 26, such as 2-sided adhesive tape or an adhesive strip. These fixing means 26 are preferably arranged relatively low with respect to the horizontal construction 25. It can further be seen that the insulation structures are each attached to the underside of a horizontal construction 25, for example of a house, such as a floor, a roof or a foundation. The attachment to the underside of the horizontal structure will take place with the aid of fastening means (not shown), such as staples, nails, screws (in case the horizontal structure is of a staple, nail or screwable material), 2-sided adhesive tape, glue, plugs, film enhancers, or otherwise. Preferably, two adjacent insulating structures are superimposed at the top on the bottom of the horizontal structure.

Claims (19)

A layered insulation structure (2000, 3000, 4000, 5000, 6000, 7000) comprising a plurality of reflective films (1-8) extending in a longitudinal direction and interconnected by a plurality of longitudinally extending connecting lines; wherein the layered insulation structure has a flat state and an active state; wherein in the flat state the films (1-8) lie substantially flat on each other and can be rolled up in a roll; the plurality of films (1-8) comprising: - an upper first film (1) intended for attachment to the underside of a substantially horizontal part of a building, such as a floor or flat roof; - a second film (2); and - a third film (3); wherein, viewed in the flat state, the second film (2) is provided between the first film (1) and the third film (3); the plurality of connecting lines, considered in the flat state, comprising: - first foil connecting lines (P11, P12, P13, P14) along which the first foil is attached to an underlying foil (2, 6); - second film connection lines (P21, P22, P23, P24) along which the second film (2) is attached to an upper film (1, 6); - third foil connection lines (P31, P32, P33) along which the third foil (3) is attached to an upper foil (1, 2, 6, 7, 8); wherein the first foil connecting lines, viewed in the flat state, comprise two outer first foil connecting lines (P11, P12) and at least one intermediate first foil connecting line (P13, P14) which, viewed in the flat state, between the outer first foil connection lines (P11, P12) are provided; wherein the second film connection lines, viewed in the flat state, comprise two outer second film connection lines (P21, P22) and at least two intermediate second film connection lines (P23, P24) which, viewed in the flat state, between the outer second film connection lines (P21, P22) are provided; wherein the third foil connecting lines (P31, P32, P33), viewed in the flat state, comprise two outer third foil connecting lines (P31, P32); wherein two adjacent, intermediate second-film connecting lines (P23, P24) in each case define a second-film intermediate part (10); wherein each of said outer first foil joining line (P11, P12) and the adjacent first foil joining line (P13, P14) adjacent thereto in each case define an outer portion (11, 12) of the first foil; each of said outer second film joining line (P21, P22) and the adjacent second film joining line (P23, P24) adjacent thereto in each case defines an outer portion (13, 14) of the second film (2); wherein, viewed in the flat state, the intermediate portion (10) of the second film comprises at least one fold (15, 16) extending longitudinally; and wherein, in the operative condition, the second foil (2) is below the first foil (1) and the outer portions (11, 12) of the first foil can extend at least partially in the horizontal plane, while the intermediate portions ( 10) and outer portions (13, 14) of the second film in a concave shape, viewed from the first film (1), hang below the upper film (1, 6) about a layer of air chambers (C11, C12, C13) to form between the first (1) and second (2) film. An insulation structure according to claim 1, wherein the second foil (2) is located directly below the first foil (1) and is attached thereto along the second foil connection lines (P21, P22, P23, P24), wherein two adjacent, intermediate second foil connecting lines (P23, P24) in each case define a first foil intermediate part (9), wherein, measured transversely to the longitudinal direction, the width of the second foil intermediate part (10) is larger than the width of the first film intermediate part (9), and wherein, in the active state, the intermediate parts (9) of the first film (1) can extend entirely in the horizontal plane. Insulation structure according to claim 1 or 2, wherein the at least one fold (15, 16) in the second film intermediate section (10) is a zigzag fold. Insulation structure according to any of the preceding claims 1-3, wherein the at least one fold (15, 16) is provided in the second foil interlayer (10) at a said intermediate second foil joining line (P23, P24). Insulation structure according to one of the preceding claims 1-4, wherein the at least one fold (15, 16) in the second foil intermediate section (10) comprises two of those folds. The insulation structure according to any of the preceding claims 1-5, wherein the third-film connection lines (P31, P32, P33) further comprise at least one intermediate third-film connection line (P33) which, viewed in the flat state, between the outer third foil connecting lines (P31, P32) is provided, which at least one intermediate third foil connecting line (P33) fixes the third foil (3) to an upper foil (1, 2, 6, 7, 8). The insulation structure of claim 6, wherein the at least one intermediate third-film bonding line (P33) fixes the third film (3) to the center of said second-film intermediate portion (10). Insulation structure according to any of claims 1-7, wherein, viewed transversely to the longitudinal direction and measured between the outer third-film connection lines (P31, P32), the width of the third film (3) is equal to the width of the first film (1). Insulation structure according to any of claims 1-8, wherein, viewed in the flat state and in a direction transverse to the longitudinal direction and transversely to the width direction of the insulation structure, on each longitudinal side of the insulation structure the outer second-foil connection line (P21, P22) in each case lies above the outer third foil connection line (P31, P32). Insulation structure according to any of claims 1-9, wherein the plurality of films (1-8) further comprises a fourth film (4), wherein, viewed in the flat condition, the third film (3) is provided between the second film (2) and the fourth film (4); wherein the plurality of connecting lines, viewed in the flat state, further comprises a plurality of fourth film connecting lines (P41, P42) along which the fourth film (4) is attached to an upper film (1, 2, 3, 6, 7, 8) is; and wherein the fourth film connection lines (P41, P42), viewed in the flat state, comprise two outer fourth film connection lines (P41, P42). Insulation structure according to claim 10, wherein, viewed transversely to the longitudinal direction and measured between the outer fourth-film connection lines (P41, P42), the width of the fourth film (4) is equal to the width of the third film (3) ). Insulation structure according to any of claims 10-11, wherein, viewed in the flat condition and in a direction transverse to the longitudinal direction and transversely to the width direction of the insulation structure, on each longitudinal side of the insulation structure the outer third-film connection line (P31, P32) in each case lies above the outer fourth-film connecting line (P41, P42). The insulation structure according to any of claims 10-12, wherein the plurality of films (1-8) further comprises a fifth film (5), wherein, viewed in the flat condition, the fifth film (5) is provided between the third film (3) and the fourth film (4); wherein the plurality of connecting lines, viewed in the flat state, further comprises a plurality of fifth-film connecting lines (P51, P52, P53, P54, P55), comprising at least two upper fifth-foil connecting lines (P53, P54) along which the fifth foil (5) is attached to the third foil (3). An insulation structure according to claim 13, wherein, viewed in the flat state, two of said at least two upper fifth-film connection lines (P53, P54) are provided on either side of said intermediate third-film connection line (P33); and wherein the distance, measured transversely to the longitudinal direction, between an adjacent set of said at least two upper fifth film connection lines (P53, P54) along the surface of the third film (3) is equal to the distance along the surface of the fifth film (5). The insulation structure of any one of claims 13-14, wherein the plurality of fifth film connection lines (P51, P52, P53, P54, P55) further comprises two outer lower fifth film connection lines (P51, P52) along which the fifth film (5) is attached to the fourth film (4); and wherein the at least two upper fifth-film connecting lines (P53, P54), viewed in the flat state, are located between the two outer lower fifth-film connecting lines (P51, P52); and wherein, viewed in the flat state, the fifth foil (5) is each provided with a respective one between the outer lower fifth foil connecting lines (P51, P52) and the neighboring upper fifth foil connecting line (P53, P54) longitudinally extending fold (17), such as a zigzag fold. The insulation structure of any one of claims 13-15, wherein the plurality of fifth film connection lines (P51, P52, P53, P54, P55) further comprises at least one intermediate lower fifth film connection line (P55) along which the fifth film ( 5) is attached to the fourth foil (4); and wherein the at least one intermediate lower fifth film connecting line (P55), viewed in flat condition, is located between two of the at least two upper fifth film connecting lines (P53, P54). The insulation structure of claim 1, wherein the plurality of films (1-8) comprises a sixth film (6) which, viewed in the flat condition, is provided between the first film (1) and the second film (2), the multitude of connecting lines, viewed in the flat state, comprises sixth foil connecting lines (P61, P62, P63) along which the sixth foil (6) is attached to an upper foil (1). An assembly of a floor and an insulation structure according to any of claims 1-17, wherein the insulation structure is attached to the underside of the floor. An assembly of a flat roof and an insulation structure according to any of claims 1-17, wherein the insulation structure is attached to the underside of the flat roof.