Thermal insulation sheet and use thereof

Abstract

A thermal insulation panel (1) comprising: successively placed thermal insulation panel lamellas (2a, 2b, 3a, 3b, 4a, 4b) which are attached to each other alternately at the upper and lower corners of their edge sides in a cross direction with respect to the longitudinal direction (P) of the thermal insulation panel, wherein the uniform thermal insulation panel formed therefrom comprising several thermal insulation panel lamellas can be folded into an accordion-like folded thermal insulation panel stack and unfolded again into one uniform thermal insulation panel having an upper surface and a lower surface. The upper surface of the thermal insulation panel comprises a surface layer (5) which is arranged in the longitudinal direction (P) of the thermal insulation panel to be attached to and detached from the thermal insulation panel lamellas (2a, 2b, 3a, 3b, 4a, 4b) alternately in groups of two consecutive thermal insulation panel lamellas.

Description

Technical Field

[0001] This invention relates to an insulating sheet. The invention also relates to the use of an insulating sheet as a protective covering layer, particularly as a protective covering layer for storing snow. Background Technology

[0002] Nowadays, it is more common to store snow in insulated snow storage facilities during the summer to maintain snow cover on ski slopes or cross-country ski tracks. Summer snow storage requires covering the snow with sufficient insulation suitable for this purpose to prevent melting as efficiently as possible.

[0003] One quick and easy way to install and remove insulation material in a snowplow is to arrange the insulation material into accordion-shaped folded insulation panels. In such panels, the insulation material (such as insulation panels or assemblies of insulation panels) is typically arranged in a bag or sleeve made of waterproof material with two opposing open ends. The insulation panels or assemblies adapted to the inside of the bag or sleeve are hinged together by connections between the bags or sleeves, forming an accordion-shaped folded structure. When the insulation panel is unfolded, the insulation panels or assemblies attached to each other by the bags or sleeves abut tightly against each other. Continuous connections in the insulation panel are alternately located on the planes of the upper and lower surfaces of the insulation panel. Through these formed connections, the insulation panel can be folded into an accordion-shaped stack of folded insulation sheets, and correspondingly, the insulation panel can be easily unfolded and pulled over a snowplow.

[0004] The accumulation of water in the joints between the insulation panels in the folds, opening towards the upper surface of the insulation sheet, is a challenge for accordion-shaped insulation panels. Water accumulated in these joint areas can flow into the snowdrift and thus cause undesirable snow melting. Insulation panels can be placed on the snow that can be stored, depending on the specific circumstances, but they are generally positioned such that the structure restricts rainwater from entering underneath the insulation panels as much as possible. Individual joint protection covers placed on the folded areas of the insulation panels can be used to prevent rainwater from flowing under the insulation panels. Thus, for example, rainwater cannot easily enter under the insulation panels and reach the snowdrift. However, such individual joint protection covers are difficult to install, and rainwater may still enter under the insulation panels from some joint areas. Summary of the Invention

[0005] One object of the present invention is to reduce or even eliminate the aforementioned problems that exist in the prior art.

[0006] The object of the present invention is to provide an accordion-shaped folding heat insulation panel having a structure that reduces or prevents rainwater from entering and accumulating in the folded areas between the heat insulation sheet sheets and thus also prevents rainwater from entering under the heat insulation panel.

[0007] In particular, the object of the present invention is to provide an accordion-shaped folding heat insulation panel that is easy to install and does not require a separate connecting part protective cover to protect the connecting area of ​​the heat insulation panel from rainwater entering the connecting area.

[0008] To achieve this objective, the main features of the heat insulation panel according to the present invention are described below.

[0009] The heat insulation sheet according to the invention comprises: successively placed heat insulation sheets, which are alternately attached to each other at the upper and lower corners of their intersecting edge sides relative to the longitudinal direction of the heat insulation sheet, wherein the resulting uniform heat insulation sheet comprising a plurality of heat insulation sheets is foldable into an accordion-shaped stack of folded heat insulation sheets and unfolded again into a uniform heat insulation sheet having an upper surface and a lower surface. The upper surface of the heat insulation sheet according to the invention comprises a surface layer arranged in the longitudinal direction of the heat insulation sheet in a manner that alternately attaches to and separates from the heat insulation sheets in groups of two consecutive heat insulation sheets.

[0010] The insulating sheet according to the invention can be used as a protective covering layer. According to one embodiment of the invention, the insulating sheet according to the invention is used as a protective covering layer for insulating a snow storage facility during snow storage. Particularly during snow storage, the insulating sheet according to the invention can be easily arranged adjacently and / or successively on the snow pile and / or on the side of the snow pile, and after the snow storage stage, due to the accordion-like structure of the insulating sheet, the insulating sheet according to the invention can be folded into a stack, thus facilitating storage. The insulating sheet according to the invention can also be used as a protective covering layer in other applications. In particular, the use of the insulating sheet is inexpensive in sites requiring a protective covering layer with insulating properties. The accordion-like folding structure of the insulating sheet according to the invention makes it easy to use.

[0011] In the method according to the invention for covering an object to be protected, the object is at least partially covered by an insulating sheet according to the invention. In the method according to the invention for providing insulation for a snow storage facility when storing snow, snowdrifts formed at the location of the snow storage facility are covered with insulating material, at least some of which are insulating sheets, and the insulating sheet according to the invention is used to insulate the snowdrifts.

[0012] The accordion-shaped folding insulation panel according to the invention is based on: a surface layer arranged on the upper surface of the insulation panel in the longitudinal direction, wherein the surface layer is generally arranged substantially over the entire length and width of the insulation panel. The surface layer arranged on the upper surface of the insulation panel is arranged in the longitudinal direction to alternately attach to and detach from the insulation sheet. In the insulation panel according to the invention, the surface layer arranged on the upper surface of the insulation panel is arranged in the longitudinal direction to alternately attach to and detach from the insulation sheet in groups of two consecutive insulation sheets. Thus, the surface layer attached to the insulation sheet receives the load when the insulation panel is moved, and when the insulation panel is unfolded into a uniform sheet, the surface layer forms a uniform surface layer on the upper surface of the insulation panel, thus preventing rainwater from entering the seam area between the insulation sheets. However, the surface layer does not prevent the accordion-like structure of the insulation sheet from functioning, and the insulation sheet can be folded into a stack of accordion-shaped insulation sheets and then unfolded again into a uniform insulation sheet.

[0013] The insulating sheet according to the invention facilitates its use as a protective covering because it eliminates the need for a separate connecting protective covering or other protective covering to prevent rainwater from entering the joint areas between the insulating sheets. The insulating sheet according to the invention provides a simple and cost-effective protective covering, particularly suitable for storing snow and other objects requiring insulation. Attached Figure Description

[0014] The invention will now be described in more detail with reference to the accompanying drawings, in which:

[0015] Figure 1 A cross-section of the insulation panel in the longitudinal direction is shown, according to the prior art, of the insulation panel.

[0016] Figure 2 This illustrates the connection area between the insulation sheets in a prior art insulation panel, which opens towards the upward surface.

[0017] Figure 3 A cross-section of the insulation sheet in the longitudinal direction is shown for an insulation sheet according to an embodiment of the invention, wherein the surface layer is arranged in the longitudinal direction of the insulation sheet in a manner in which two consecutive insulation sheets are alternately attached to and separated from the insulation sheets in a group.

[0018] Figure 4 This illustrates an insulation panel according to an embodiment of the invention, which is unfolded in the longitudinal direction of the insulation panel to form a uniform insulation panel as shown in the cross-sectional view.

[0019] Figure 5 The illustration shows an edge structure of a heat insulation sheet in a heat insulation panel according to one embodiment of the invention, wherein the surface layer includes folds and through-holes and / or attachments disposed in the folds.

[0020] Figure 6 The structure of the connection region between two adjacent heat insulation panels according to one embodiment of the present invention is shown, and

[0021] Figure 7 An insulating sheet according to one embodiment of the present invention is shown, wherein a surface layer is attached to the insulating sheet at the edge of the surface layer in a group of two insulating sheets in the longitudinal direction of the insulating sheet. Detailed Implementation

[0022] The heat insulation panel according to the invention comprises successively placed heat insulation sheets, which are alternately attached to each other at the upper and lower corners of their intersecting edge sides relative to the longitudinal direction of the heat insulation panel, thereby forming an accordion-shaped folded heat insulation panel. The longitudinal direction of the heat insulation panel is the direction in which the heat insulation sheets are successively placed in a hinged manner to obtain the accordion-shaped folded sheet structure. The number of heat insulation sheets in the heat insulation panel can be varied. The heat insulation panel has an upper surface and a lower surface, which are formed by the heat insulation sheets when the heat insulation panel is unfolded into a uniform heat insulation panel.

[0023] The upper surface of the insulation sheet according to the invention further includes a surface layer. Typically, the surface layer is disposed substantially over the entire length and width of the insulation sheet. According to the invention, the surface layer is disposed only on one surface of the insulation sheet. In the insulation sheet according to the invention, the surface layer is arranged in the longitudinal direction of the insulation sheet to be alternately attached to and detached from the insulation sheet in groups of two consecutive insulation sheets. In one embodiment of the invention, in a single insulation sheet, the surface layer is attached substantially to the entire upper surface of the insulation sheet. In another embodiment, the surface layer is attached to the insulation sheet only at the edge side of the insulation sheet in the longitudinal direction. In one embodiment of the invention, the surface layer is removably attached to the insulation sheet. When the surface layer separates from the continuous insulation sheet, the length of the separated surface layer is defined as the length of the insulation sheet corresponding to the distance discussed in the longitudinal direction of the insulation sheet, wherein, when the insulation sheet is unfolded into a uniform sheet, individual regions of the surface layer are closely arranged onto the surfaces of these insulation sheets. This arrangement of the surface layer enables the accordion-like folded structure of the insulation sheet to function, while simultaneously protecting the upward-opening connecting areas.

[0024] In one embodiment of the invention, the surface layer is arranged in the longitudinal direction of the insulation sheet such that it is alternately attached to and separated from the insulation sheet in groups of two consecutive insulation sheets. The surface layer forms a connection region at the upper corner of the edge side where the longitudinal direction of each pair of insulation sheets intersects, and the surface layer separates from the surface of the insulation sheet at each of the upper corner connection regions. Thus, the surface layer can also be arranged uniformly along the entire distance of the upper surface of the insulation sheet, and when the insulation sheet is arranged as a uniform sheet, the surface layer forms a uniform surface layer closely disposed on the surface of the insulation sheet, thereby preventing the formation of rainwater channels leading to the upwardly opening connection regions. In a typical embodiment, the first two and last two insulation sheets in the longitudinal direction of the insulation sheet include a surface layer attached to the insulation sheet.

[0025] In one embodiment of the invention, the heat insulation sheet comprises a heat insulation plate, preferably, all the sheets of the heat insulation sheet are formed from a single heat insulation plate. In another embodiment of the invention, the heat insulation sheet comprises two or more heat insulation plates arranged abutting each other. The heat insulation sheet according to the invention may comprise, for example, a group of heat insulation plates formed by two or more heat insulation plates arranged adjacently and / or successively. When the heat insulation sheet comprises two or more heat insulation plates, the heat insulation plates are typically attached to each other and / or arranged inside a separate bag or sleeve / bag with an open end. In one embodiment, the accordion-like folded structure of the heat insulation sheet is formed by a bag / sleeve, and a surface layer according to the invention is arranged on the upper surface of the bag / sleeve according to the invention.

[0026] In a typical embodiment, the heat insulation plate forming the heat insulation sheet according to the invention is a rectangular heat insulation plate, the rectangular heat insulation plate including a short edge side and a long edge side that is substantially perpendicular to the short edge side.

[0027] In a typical embodiment of the invention, the heat insulation sheet is arranged in the longitudinal direction of the heat insulation sheet such that the long edge side of the heat insulation sheet is perpendicular to the longitudinal direction of the heat insulation sheet.

[0028] Most typically, the insulation board in an insulation sheet is made of, for example, polyurethane or polystyrene. According to one embodiment of the invention, the insulation sheet comprises an insulation board that includes extruded polystyrene (XPS), expanded polystyrene (EPS), polyurethane (PIR / PUR), and / or polyphenols. According to one embodiment of the invention, the insulation board in the insulation sheet may also comprise a biomaterial-based material, such as, for example, polylactide (PLA) foam. Therefore, according to one embodiment of the invention, the insulation sheet comprises one or more insulation boards that include extruded polystyrene (XPS), expanded polystyrene (EPS), polyurethane (PIR / PUR), polyphenols, and / or PLA foam. According to an advantageous embodiment of the invention, the insulation sheet comprises an insulation board made of extruded polystyrene (XPS). XPS material has high strength and does not absorb water, making it durable and a particularly useful material for insulation sheets. Furthermore, XPS possesses excellent insulation properties, ensuring a good snow storage life, especially for snow storage applications. Alternatively, insulation panels or portions thereof can be other insulation panels suitable for this purpose. The outer dimensions of the insulation panels within the insulation sheet can be selected according to specific circumstances, or standard-sized insulation panels can be used. Sufficient thickness of the insulation panel is necessary, taking into full account the climatic conditions at the snowdrift location.

[0029] The surface layer according to one embodiment of the invention is waterproof. Typically, the surface layer is formed of a waterproof material. The surface layer according to one embodiment of the invention comprises a fabric-like material and / or plastic. In an advantageous embodiment of the invention, the surface layer is formed of a material comprising polyvinyl chloride (PVC) or polyethylene (PE). The surface layer may include one or more material layers. In one embodiment of the invention, the surface layer comprises two or more material layers, wherein at least one layer includes a reinforcing material, such as a fiber reinforcement. In the insulation panel according to the invention, the surface layer is disposed only on one side of the insulation panel, wherein a material with higher quality properties can be used as the material of the surface layer, such as a material with good UV resistance.

[0030] In one embodiment of the invention, a surface layer is attached to the surface of the insulation sheet. In another embodiment, the surface layer is directly attached to the surface of the insulation sheet. In one embodiment, a separate reinforcing material attached to both the surface layer and the insulation sheet is arranged between the surface layer and the insulation sheet. The reinforcing material is arranged at least partially between the surface cover and the insulation sheet, typically at least in the edge regions of the insulation sheet. For example, the reinforcing material may be a fiber-reinforced material, such as a woven material. The purpose of the reinforcing material is to strengthen the structure and, when necessary, ensure the attachment of the surface layer to the surface of the insulation sheet. Particularly in the edge regions of the insulation sheet where most forces are directed when the insulation sheet is moved, the reinforcing material strengthens the structure of the insulation sheet according to the invention. The reinforcing material may, for example, be glued to the surface of the insulation sheet and glued and / or sewn to the surface layer. The surface layer and possible reinforcing material may also be attached to the insulation sheet in other ways suitable for this purpose. In one embodiment of the invention, the surface layer or the surface layer and reinforcing layer are removably attached to the insulation sheet.

[0031] In one embodiment of the invention, the lower surface of the insulation sheet in the insulation panel may be coated. The purpose of the coating is to protect the insulation material and thus make the sheet in the insulation panel more durable.

[0032] In a typical insulation panel according to the invention, the connecting regions at least intersecting the longitudinal direction of the insulation panel and on the edge side between the insulation sheets include hinge structures, and the connecting regions excluding the connecting portions form a surface layer. In an embodiment according to the invention, all connecting regions intersecting the longitudinal direction of the insulation panel and on the edge side between the insulation sheets include hinge structures. The hinge structures may include, for example, elastic materials and / or reinforcing materials such as fiber reinforcement, or the hinge structures may be formed in another manner suitable for this purpose. All connecting regions include individual hinge structures, and the surface layer need not be attached to the surface of the insulation sheet. The stresses and loads directed to the insulation panel are received by the surface layer disposed on the upper surface of the insulation panel, thereby diverting relatively little stress to other connecting regions between the insulation sheets in the insulation panel, thus allowing them to be formed in a simpler manner. To form the connecting portions, only suitable materials such as adhesives and / or tapes may be used in the connecting regions, but durability can be increased by also using reinforcing materials, fiber reinforcements, etc., in the connecting regions. In one embodiment of the invention, the connecting regions of the insulation sheets are formed in a separable manner by means of an attachment device. The connecting portions between the insulation sheets are generally arranged along the entire distance of the insulation sheets in the longitudinal direction of the connecting regions.

[0033] In one embodiment of the invention, the hinged attachment of the insulation sheet can be achieved such that at least a portion of the continuous insulation sheet is arranged in a bag or sleeve having two opposing open ends formed of a waterproof fabric-like material, wherein the continuous bags or sleeves of the insulation sheet are connected to each other at one edge by a suitable connection. Thus, the insulation sheets arranged in the bag or sleeve are hinged to each other at their opposing edges via a connection between the bag and sleeve, and furthermore, a separate surface layer is arranged on the upper surface of the insulation sheet, according to the invention, the surface layer being arranged sequentially in the longitudinal direction of the insulation sheet to be attached to and detached from the insulation sheet. In one embodiment of the invention, the surface layer is attached to the bag or sleeve of the insulation sheet only on the edge side of the insulation sheet in the longitudinal direction of the insulation sheet. In another embodiment of the invention, the surface layer is attached to the surface of the bag / sleeve of the insulation sheet, preferably, to the entire surface area. When the insulation sheet according to the invention comprises a separate surface layer, the bag and sleeve of the insulation sheet can be made of a cheaper material and only the surface layer can be made of a more durable material, such as a UV-resistant material.

[0034] In one embodiment of the invention, the insulation sheets are arranged detachably within the insulation sheet, allowing for easy replacement in case of damage. When the insulation sheets are detachably attached to the structure of the insulation sheet, the structure can also be easily disassembled when needed.

[0035] In an insulation panel according to one embodiment of the invention, folds are formed in the surface layer at the end edges of the insulation panel in the direction intersecting the longitudinal direction of the insulation panel and / or at the side edges of the insulation sheet in the longitudinal direction of the insulation sheet. A fold means that the surface layer is arranged to be at least doubly curved over a distance, wherein the folds separating from the surface of the insulation sheet may be formed at the side edges of the insulation sheet and / or at the end edges in the longitudinal direction of the insulation panel. In one embodiment of the invention, through-holes are arranged in the folds on the surface layer so that attachment devices can be attached to the folds on the surface layer, and thus adjacent and / or consecutive insulation panels are connected to each other. In one embodiment of the invention, the folds include, for example, one or more annular through-holes, such as eyelets. In one embodiment of the invention, through-holes (such as eyelets) may be arranged at the edge of the surface layer extending to the outside of the insulation sheet. This edge may be formed by a single layer of the surface layer, or the edge of the surface layer may be at least doubly curved. In one embodiment of the invention, individual attachment devices such as ropes or zippers can be attached to these through-holes, allowing adjacent and / or consecutive insulation panels to be easily and quickly attached to each other and as tightly as possible, without leaving large spaces between adjacent and / or consecutive insulation panels. According to one embodiment of the invention, other attachment devices enabling adjacent and / or successively arranged insulation panels to be attached to each other can also be arranged at one or more edges of the surface layer and / or to folds formed on the surface layer. Attachment can be achieved by a zipper, for example, arranged at one or more edges of the surface layer and / or to folds formed on the surface layer. Thus, the insulation panels according to the invention can form a large surface area of ​​protective covering, and it is not necessary to arrange separate protective coverings for the connection areas between individual insulation panels to ensure adequate sealing.

[0036] Typically, the heat insulation panel according to the invention also includes a traction member for pulling the heat insulation panel to and from its use position. The traction member may be, for example, a traction rope, wire, sling, etc.

[0037] Typically, the insulating panels according to the invention are used as a protective covering layer. In particular, the insulating panels according to the invention are a protective covering layer for insulating snow storage facilities when storing snow.

[0038] A method for insulating a snowplow includes covering a snowdrift formed at the snowplow location with insulating material. In the method according to the invention, insulating panels according to the invention, arranged adjacently and / or successively on the snowdrift, are used for insulating the snowdrift. At least a portion of the insulating body covering the snowdrift is formed of insulating panels according to the invention, which are attached to each other in an accordion-like manner and pulled adjacently and / or successively across the snowdrift or along the sides of the snowdrift during snow storage. After the snow storage phase, when the stored snow is put into use, the insulating panels are folded back into an accordion-like fold for storage and reuse. The surface layer of the insulating panels according to the invention forms a uniform covering layer on the upper surface of the insulating panels when the panels are unfolded into elongated insulating panels, thereby effectively preventing water from entering the snowdrift. The insulating panels are arranged adjacently and / or successively on the snowdrift, wherein adjacent or consecutive insulating panels are attached to each other by through-holes and / or attachments arranged at the edges of the insulating panels. Correspondingly, insulation panels can also be used to protect other objects.

[0039] Detailed description of the attached diagram

[0040] Figure 1 A cross-sectional view of the insulation sheet in the longitudinal direction shows an insulation sheet 1 according to the prior art. The insulation sheet 1 comprises successively placed insulation sheets 2a, 2b, 3a, 3b, 4a, 4b, which are alternately attached to each other at the upper and lower corners of their intersecting edges relative to the longitudinal direction P of the insulation sheet. The resulting uniform insulation sheet, comprising several insulation sheets, can be folded into an accordion-shaped stack of folded insulation sheets and unfolded into a uniform insulation sheet having an upper surface and a lower surface. Typically, in prior art insulation sheets, the insulation sheets are arranged inside a bag, wherein the successively arranged insulation sheets are hinged together by attaching the bag of insulation sheets to each other at their opposite edges via suitable connections to form an accordion-shaped folded structure of the insulation sheet. Typically, insulation sheets are in bags, with a protective insulation material surrounding each insulation sheet.

[0041] Figure 2 This illustrates a challenge in the prior art insulation panel where the connection region between two consecutive insulation sheets 2a, 2b opens toward the upper surface of the insulation sheet. (See diagram below.) Figure 2 As indicated by the arrows, the connecting area can form a so-called groove leading to the insulation panel, through which water enters from the surface of the insulation panel. In this case, water may flow through this groove in the connecting area into the snowdrift covered by the insulation panel, thus causing undesirable snow melting under the insulation panel.

[0042] Figure 3 A cross-sectional view in the longitudinal direction of the heat insulation sheet shows a heat insulation sheet 1 according to an embodiment of the present invention. The heat insulation sheet 1 according to the present invention comprises successively placed heat insulation sheets 2a, 2b, 3a, 3b, 4a, 4b, which are alternately attached to each other at the upper and lower corners of their intersecting edge sides relative to the longitudinal direction P of the heat insulation sheet. The resulting uniform heat insulation sheet comprising a plurality of heat insulation sheets can be folded into an accordion-shaped stack of folded heat insulation sheets and unfolded into a uniform heat insulation sheet having an upper surface and a lower surface. The upper surface of the heat insulation sheet 1 according to the present invention includes a surface layer 5. The heat insulation sheet 1 has an upper surface and a lower surface, wherein when the heat insulation sheet is unfolded into a uniform sheet, the lower surface abuts against the object it covers, and the upper surface forms the outward-facing surface of the heat insulation sheet. The surface layer 5 is alternately attached to and separated from the insulation sheet in the longitudinal direction P of the insulation sheet. Figure 3 In this process, surface layer 5 is attached to two continuous insulation sheets, and surface layer 5 forms a connection region between these continuous insulation sheets at the upper corner of the edge side where the longitudinal direction P of the insulation sheet intersects, such as... Figure 3 The connecting areas of the heat insulation sheets 2a and 2b, and 4a and 4b. Figure 3 In this process, the surface layer 5 is attached to and separates from the insulation sheets 2a and 3a and 3b in the longitudinal direction of the insulation sheet, and is then reattached to the next pair of insulation sheets 4a and 4b. The attachment of the surface layer 5 in the longitudinal direction of the insulation sheet 1 according to an advantageous embodiment of the invention continues in the same manner, grouped in pairs of consecutive insulation sheets, along the entire length of the insulation sheet. Figure 3 As shown, surface layer 5 separates from two continuous insulation sheets between points A and B. The width of a single insulation sheet in the longitudinal direction of the insulation sheet is X, and therefore the length of the separated surface layer between points A and B in the longitudinal direction of the insulation sheet is 2X. The lower surface 7 of the insulation sheet in the insulation sheet can be coated with a coating suitable for this purpose.

[0043] exist Figure 3 In the heat insulation sheet shown according to one embodiment of the invention, the connection between at least the heat insulation sheets 2b and 3a, 3a and 3b, and 3b and 4a is formed by arranging, for example, individual elastic materials and / or fiber reinforcements between the upper or lower edges of the edge sides of the heat insulation sheets to suit this purpose, thus forming a hinge structure. The connection area under the surface layer 5 may also have individual connection portions formed to suit this purpose.

[0044] Figure 4 The invention shows an insulation sheet unfolded into a uniform insulation sheet, wherein the surface layer 5 forms a dense and uniform surface on the upper surface of the insulation sheet in the longitudinal direction P of the entire insulation sheet.

[0045] Figure 5 A fold 8 according to an embodiment of the invention is shown at the edge of the insulation sheet 2a. The fold 8 is formed on the surface layer 5 at the end edge in a direction intersecting the longitudinal direction of the insulation sheet and / or at the side edge of the insulation sheet in the longitudinal direction P of the insulation sheet. The fold 8 is formed by arranging the surface layer 5 in a manner that is at least double-curved over a certain distance. Typically, the fold 8 includes one or more through holes 9a, 9b, such as eyelets or other attachment devices.

[0046] Figure 5 It is also shown that a separate reinforcing material 6 is arranged between the surface layer 5 and the insulation sheet 2a, and the separate reinforcing material is attached to both the surface layer 5 and the insulation sheet 2a. The reinforcing material is arranged between the surface layer 5 and the insulation sheet 2a at least in the edge region of the insulation sheet 2a. In this way, the surface layer can be tightly attached to the insulation sheet, and the structure is durable.

[0047] Figure 6 The structure is illustrated schematically in which two insulating plates 11, 12 according to the invention are placed adjacent to each other with their ends pressed tightly against each other, and the insulating plates 11, 12 are tightly connected to each other by a fold 8 and an attachment device 10 connecting the ends of the insulating plates to the fold 8. Figure 6 In the illustrated embodiment, the folds 8 partially overlap when the insulation panels 11 and 12 are placed abutting each other. Individual attachment devices 10 (such as zipper structures) that allow the insulation panels to be easily and tightly attached to each other can be attached to these folds.

[0048] Figure 7 The diagram illustrates a heat insulation sheet according to one embodiment of the invention described above. In the heat insulation sheet 1, a surface layer 5 is attached to the heat insulation sheet in groups of two sheets along the longitudinal direction P along the entire length of the heat insulation sheet. In the figure, the surface layer is attached to the edges of the heat insulation sheets 2a, 2b, 4a, 4b, and this arrangement continues in groups of two sheets along the entire length of the heat insulation sheet. In this embodiment, the heat insulation sheets 2a, 2b, 3a, 3b, 4a, 4b can be arranged inside individual bags / cases and form accordion-shaped folded heat insulation sheets. The surface layer 5 is arranged on the upper surface of the heat insulation sheet and is attached to the edges of the heat insulation sheets in groups of two sheets via attachment device 13.

Claims

1. A heat insulation panel (1), comprising: A series of heat insulation sheets (2a, 2b, 3a, 3b, 4a, 4b) are placed in succession, the heat insulation sheets being alternately attached to each other at the upper and lower corners of the edge sides of the cross direction relative to the longitudinal direction (P) of the heat insulation sheet, wherein the uniform heat insulation sheet (1) thus formed comprising a plurality of heat insulation sheets (2a, 2b, 3a, 3b, 4a, 4b) can be folded into an accordion-shaped stack of folded heat insulation sheets and unfolded into a uniform heat insulation sheet having an upper surface and a lower surface, characterized in that: the upper surface of the heat insulation sheet includes a surface layer (5), the surface layer being arranged in the longitudinal direction (P) of the heat insulation sheet to be alternately attached to the heat insulation sheet (2a, 2b, 3a, 3b, 4a, 4b) and separated from the heat insulation sheet in groups of two consecutive heat insulation sheets.

2. The heat insulation panel (1) as described in claim 1, characterized in that, The heat insulation sheets (2a, 2b, 3a, 3b, 4a, 4b) are arranged in the longitudinal direction of the heat insulation sheet such that the long edge side of the heat insulation sheet is perpendicular to the longitudinal direction (P) of the heat insulation sheet.

3. The heat insulation panel (1) as described in claim 1 or 2, characterized in that, The heat insulation sheet (2a, 2b, 3a, 3b, 4a, 4b) in the heat insulation sheet includes a heat insulation plate.

4. The heat insulation panel (1) as described in claim 1 or 2, characterized in that, The insulation sheet (2a, 2b, 3a, 3b, 4a, 4b) in the insulation sheet comprises two or more insulation sheets arranged abutting each other.

5. The heat insulation plate (1) as described in claim 1 or 2, characterized in that, The surface layer (5) is formed of a waterproof material.

6. The heat insulation panel (1) as described in claim 1 or 2, characterized in that, The surface layer (5) includes a fabric-like material and / or a plastic material.

7. The heat insulation panel (1) as described in claim 6, characterized in that, The surface layer is formed of a material including polyvinyl chloride (PVC) or polyethylene (PE).

8. The heat insulation panel (1) as described in claim 3, characterized in that, The insulation board includes extruded polystyrene (XPS), expanded polystyrene (EPS), polyurethane (PIR / PUR), polyphenol and / or polylactide (PAL) foam.

9. The heat insulation panel (1) as described in claim 1 or 2, characterized in that, The surface layer (5) is attached to the surface of the heat insulation sheet (2a, 2b, 3a, 3b, 4a, 4b).

10. The heat insulation panel (1) as described in claim 9, characterized in that, The surface layer (5) attached to the surface of the two continuous insulation sheets forms a connection region between the upper corners of the edge sides of the continuous insulation sheets where the longitudinal direction (P) of the insulation sheet is intersecting.

11. The heat insulation panel (1) as described in claim 1 or 2, characterized in that, A separate reinforcing material (6) has been arranged between the surface layer (5) and the insulation sheet (2a, 2b, 3a, 3b, 4a, 4b), and the separate reinforcing material (6) has been attached to the surface layer (5) and the insulation sheet.

12. The heat insulation panel (1) as described in claim 1 or 2, characterized in that, The lower surfaces of the insulation sheets (2a, 2b, 3a, 3b, 4a, 4b) in the insulation sheet (1) are coated.

13. The heat insulation panel (1) as described in claim 1 or 2, characterized in that, The connecting regions at least between the insulation sheets (2a, 2b, 3a, 3b, 4a, 4b) and on the edge side that are intersecting the longitudinal direction (P) of the insulation sheets include a hinge structure, and the connecting regions excluding the connecting portions form the surface layer.

14. The heat insulation panel (1) as described in claim 1 or 2, characterized in that, The fold (8) is formed at the end edge of the surface layer (5) at the intersection direction with the longitudinal direction of the heat insulation plate and / or formed on the side edge of the heat insulation plate sheet in the longitudinal direction of the heat insulation plate sheet, and / or the edge of the surface layer (5) extends to the outside of the heat insulation plate sheet.

15. The heat insulation panel (1) as described in claim 14, characterized in that, The edge of the surface layer (5) extending to the outside of the insulation sheet and / or the fold (8) includes one or more through holes, such as eyelets.

16. Use of the heat insulation sheet (1) as a protective covering layer as described in any of the preceding claims.

17. The use as described in claim 16, characterized in that, The insulation panel (1) is used as a protective covering layer for insulating the snow storage area.

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