EP2712971A1 - Fibre insulation element - Google Patents

Abstract

The insulating element has a main portion that is provided with parallel major surfaces (1.1) arranged perpendicular to the side surfaces. A weakened material is provided vertical to the major surfaces. The predetermined breaking point of weakened material is provided in the form of a slit (2.1) and perforation (2.2). The weakened material is arranged parallel to the side surfaces. The weakened material is formed to extend diagonally from one or both major surfaces. The weakened material is formed like a grid. An independent claim is included for a method for producing an insulating element.

Description

The invention relates to an insulating element made of bonded insulating fibers, which has a body with two substantially parallel to each other arranged large surfaces and at right angles to these arranged side surfaces.

Insulating elements of this type of bonded insulating fibers are well known in the art. The insulating fibers may be mineral fibers, organic synthetic fibers, vegetable fibers or animal fibers. These insulation elements find application in the form of plates, mats, rolls, felting, nonwovens or as molded parts. Usually these are used for thermal protection or cold protection, for sound insulation, fire protection or moisture protection. Areas of application include civil engineering, vehicle, machine and equipment construction or even general technical insulation tasks and packaging of sensitive goods.

In order to be able to produce insulation elements both in a uniform size and at the same time to allow adaptation to different room conditions, various embodiments of insulating elements are known in the prior art.

The publication DE 32 03 624 A1 describes, for example, a wedge-shaped insulation board, in particular of mineral fibers, which is intended for heat and / or sound insulation of buildings and for attachment to carriers, in particular for insertion between rafters. For individual adaptation of the insulation panels to the spatial conditions, it is proposed to displace two or more such wedge-shaped insulation panels against each other during insertion between the rafters.

The DE 36 12 857 C2 discloses an insulation sheet of mineral fiber felt, on which transverse to their longitudinal extension modular marking lines are applied, are specified by the lined up in the stretched state of the insulating sheet and separated by cutting the insulation sheet in the region of the marking insulation boards.

Although the solutions known in the prior art already allow a fairly comfortable adaptation of the insulating elements to the respective installation situation, there is nevertheless room for improvement. This concerns in particular the division of the insulating element into several partial insulating elements.

It is therefore an object of the invention to provide an insulating element, which can be easily adapted in terms of its dimensions to individual installation situations and in particular without further aids such as knives or other cutting tools can be divided into several partial insulation elements.

To achieve this object, the invention provides that the insulating element has one or more material weakenings substantially perpendicular to the large surfaces.

The material weakenings of the bonded insulation fibers thereby allow a tool-less subdivision of the insulating element into individual partial insulating elements or alternatively a subdivision with conventional hand-separating tools, with which the insulating element can be divided faster and easier. In contrast to the prior art, the insulation elements thus not only on marking lines, which serve as an orientation aid in the separation of the insulating element, but at the same time introduced industrially into the insulation element material changes, which allow tool-free or performed with hand-separating tools severing the insulation element. As a result, the insulating element can be easily adapted to different spatial conditions such as different sized Sparrenzwischenräume. The insulating element according to the invention can be produced with a uniform standard size, while it can then be subdivided into one or more partial insulating elements depending on the installation situation. The Teüdämmstoffelemente can simply be torn apart or alternatively separated with a knife or other hand-separating tools. The crack edge can be easily processed and clamped by the material weakening according to the invention. Thus, a post-processing of the partial insulation elements is not required. In addition to material weaknesses perpendicular to the large surfaces are of course also possible obliquely to the solder material weakenings.

The invention provides that the material weakening is a predetermined breaking point in the form of a slit. Alternatively, the material weakening can also be a predetermined breaking point in the form of a perforation.

According to the former variant - the slit - the material weakening is introduced by means of a separating cut in the insulating element. The separating cut takes place, for example, with a disk knife, which passively passes during the production process or is actively driven against or with the running direction. The Disk knife is preferably not chip removal and has an adjustable speed of rotation. For elastic products such as insulation elements results in a slot width of approximately 0 mm. Alternatively, the slits can also be made chip removal by very thin Fräsblätter in the insulating element. The milling blades rotate during the production process advantageous against or with the direction of the insulating elements. Here too, an adjustable rotational speed of the milling blades is advantageous. Overall, this variant creates a separation slot width, which corresponds to the thickness of the cutting blade. Furthermore, other methods such as water jet cutting or Heizdrahtschneiden are suitable for introducing the slit in the insulating element.

In contrast to the prior art, the material weakenings according to the invention are not mere cutting aids such as printed on the surface or burned into the surface auxiliary lines, but slits which penetrate the insulating element to a desired depth. As a result, the lines, which are often placed in grid form in and / or on the insulating element, not only visually displayed, but perform the hand-cutting tools thanks to the surface slit. The slit can be carried out both on one side and on both sides of the insulating element. The slit z. B. every 5 cm linear or slotted as a grid, also leads, in addition to a more accurate knife guide, to a faster, easier and more accurate cut and prevents any fraying of the material surface. The slot depth is low, for example, 5 mm, so that the material weakening has a negligible effect on the insulating element as a whole. In all embodiments described here, the material weakenings can also be combined with optical guides.

In the second embodiment, the material weakening by perforation, the material weakening is introduced by a punching by means of stamping tools in the insulating element. The punching can also be done by means of water jet tools or other technologies.

The invention further provides that the material weakening is formed only in the region of one of the large surfaces, advantageously up to the middle of the distance between the large surfaces. Thus, the insulating fibers of the insulating element are separated only over a certain partial thickness of the insulating element. Advantageously, the material weakening is formed up to the middle of the distance between the large surfaces, so that two equally thick superimposed halves of the part Insulation element result, of which the part half, which also includes the upper large surface of the insulating element, for example, is divided by a slot, while the second half of the insulating element, which also includes the lower large surface, is further integrally formed. In addition to a symmetrical separation with respect to the thickness of the insulating element, an asymmetrical separation is alternatively possible, whereby the material weakening can be strengthened or weakened. The dimension of the material weakening can advantageously be varied depending on the insulating material or on the size of the distance between the large surfaces.

As an alternative to the unilateral material weakening of the insulating element, the invention further provides that the weakening of the material is formed opposite in the region of both large surfaces, wherein a material web remains in the area between the large surfaces. According to this embodiment, the insulating element is slotted and / or perforated in opposite areas of the two large surfaces. Between the opposing slots remains a material web, which may be formed more or less large. The material web can be arranged centrally between the large surfaces or be moved to one or the other large surface. The individual position of the material web can be adapted during production to the respective material of the insulating element or the later place of use. The material weakening forming the material web can be a slit within the material of the insulating element or even a perforation.

The weakening of the material - slit or perforation - does not necessarily have to have the same depth of penetration in the insulating element throughout, but can, for example, also approach zero in the region of the edges. This can be z. B. have a beneficial effect on the strength of the edges in the processing of the insulating elements in diagonally introduced material weakening. Alternatively, however, the material weakening in the edge region may also be greater than in other regions. This can produce a better crack pattern after the separation of the insulation elements.

According to the invention, the insulating element can be torn or severed along the material weakening in at least two partial insulating elements. With this configuration, it is possible to separate the insulating element without additional tools or with simple hand-separating tools such as knives in several partial insulation elements. The separation is done by hand.

The material weakening can be arranged according to the invention parallel to the side surfaces of the insulating element or extend diagonally through one or both large surfaces. Furthermore, the insulating element can also have parallel and diagonally arranged material weakening at the same time. This results in a large number of possible formats of the partial insulation elements, so that the insulation element can be brought to a suitable size for almost any installation situation. With regard to the material weakening parallel to the side surfaces of the insulating element, it is possible, for example, to form rectangular partial insulating elements with different side lengths. The material weakenings can be introduced both longitudinally and transversely in the body of the insulating element. In a material weakening diagonally through one or both large surfaces results in a wedge shape of the partial insulation elements. These wedge-shaped partial insulation elements can be moved relative to each other, so that they form - after separation of the projecting tips - rectangles in different lengths and widths.

Finally, it is provided to form the material weakening grid-shaped. In this case, the slit or perforation can be symmetrically introduced into the insulating element. Alternatively, however, the grid may also include asymmetrical elements having different widths of the punched or slotted areas.

In addition to the above-mentioned insulating element, the invention also provides a method for producing such an insulating element, wherein in the insulating element on one side or both sides to a desired distance perpendicular to the large surfaces a slit or perforation is introduced.

Erste Variante:

Schlitzung des Dämmstoffelementes im Bereich nur einer der großen Oberflächen;

Zweite Variante:

Schlitzung des Dämmstoffelementes im Bereich beider großen Oberflächen, wobei zwischen den sich gegenüberliegenden Schlitzungen ein unperforierter, massiver Materialsteg verbleibt;

Dritte Variante:

Schlitzung des Dämmstoffelementes im Bereich beider großen Oberflächen, wobei zwischen den sich gegenüberliegenden Schlitzungen ein perforierter Materialsteg verbleibt;

Vierte Variante:

Perforierung des Dämmstoffelementes im Bereich lediglich einer der großen Oberflächen;

Fünfte Variante:

Perforierung des Dämmstoffelementes im Bereich beider großen Oberflächen, wobei zwischen den sich gegenüberliegenden Perforierungen ein massiver Materialsteg verbleibt;

Sechste Variante:

Perforierung des Dämmstoffelementes über den gesamten Abstand zwischen den großen Oberflächen.

Overall, different embodiments result from the invention. These include in particular:

First variant:

Slitting of the insulating element in the area of only one of the large surfaces;

Second variant:

Slotting of the insulating element in the region of both large surfaces, with an imperforate, solid material web remains between the opposing slits;

Third variant:

Slotting of the insulating element in the region of both large surfaces, with a perforated material web remains between the opposing slits;

Fourth variant:

Perforation of the insulating element in the area of only one of the large surfaces;

Fifth variant:

Perforation of the insulating element in the area of both large surfaces, with a massive material web remains between the opposite perforations;

Sixth variant:

Perforation of the insulating element over the entire distance between the large surfaces.

In addition to these aforementioned variants also mixed variants are possible, for example, the material weakening along the longitudinal extent of the insulating element can vary.

Fig. 1 a, b, c, d:

ein Dämmstoffelement in Draufsicht mit einseitig längs angeordneten Materialschwächungen (a), beidseitig längs angeordneten Materialschwächungen (b), zwei quer angeordneten Materialschwächungen (c), einer diagonal angeordneten Materialschwächung (d);

Fig. 2 a, b:

ein Dämmstoffelement in perspektivischer Seitenansicht mit Schlitzungen in den Bereichen beider großen Oberflächen und dazwischen angeordnetem massivem Materialsteg (a) vor der Trennung, (b) nach der Trennung;

Fig. 3 a, b:

ein Dämmstoffelement in perspektivischer Seitenansicht mit Schlitzungen in den Bereichen beider großen Oberflächen angeordneten Schlitzungen, wobei zwischen den gegenüberliegenden Schlitzungen ein perforierter Materialsteg ausgebildet ist (a) vor der Trennung, (b) nach der Trennung;

Fig. 4:

in Seitenansicht einen Querschnitt durch die Ebene eines Materialsteges eines Dämmstoffelementes mit Schlitzungen im Bereich beider großen Oberflächen;

Fig. 5:

in Seitenansicht einen Querschnitt durch die Ebene eines Materialsteges eines Dämmstoffelementes mit über den gesamten Abstand zwischen den großen Oberflächen ausgebildeter rasterförmiger Perforierung;

Fig. 6:

ein Beispiel einer Keiltabelle für ein Dämmstoffelement mit einem Rohformat von 1220 mm x 580 mm.

Embodiments of the invention will be explained in more detail below with reference to FIGS. Show it:

1 a, b, c, d:

an insulating element in plan view with one side longitudinally arranged material weakenings (a), on both sides longitudinally arranged material weakenings (b), two transverse material weakenings (c), a diagonally arranged material weakening (d);

2 a, b:

an insulating element in a perspective side view with slits in the areas of both large surfaces and arranged therebetween solid material web (a) before the separation, (b) after the separation;

3 a, b:

an insulating element in a perspective side view with slits in the areas of both large surfaces arranged slits, wherein between the opposite slits a perforated web of material is formed (a) before the separation, (b) after the separation;

4:

in side view a cross section through the plane of a material web of an insulating element with slits in the region of both large surfaces;

Fig. 5:

in side view a cross section through the plane of a material web of an insulating element with over the entire distance between the large surfaces formed grid-shaped perforation;

Fig. 6:

an example of a wedge table for an insulating element with a raw format of 1220 mm x 580 mm.

Fig. 1 shows in plan view an insulating element 1 with material weakenings 2. The material weakenings 2 are formed in the region of at least one large surface 1.1. In Fig. 1 a, the material weakening 2 is arranged on one side along the side surface. According to Fig. 1 b the insulating element 1 on both sides along material weakenings 2. Fig. 1 c shows two parallel material weakenings 2 formed transversely in the insulating element 1. Fig. 1 d shows an insulating element 1 with a diagonally arranged material weakening 2. In addition to the in Fig. 1 Variants shown further embodiments are possible, which in particular also include combinations of the aforementioned variants.

Fig. 2 a shows an insulating element 1 in a perspective side view. The insulating element 1 shown here has in the area of both large surfaces 1.1 a material weakening 2 in the form of a respective slit 2.1. The slits 2.1 are arranged opposite each other, with a material web 3 remaining in the insulating element 1 between them. Fig. 2 is limited to a symmetrical design of the slits 2.1 within the insulating element 1. However, other embodiments are conceivable in which the slits 2.1 are introduced to different depths in the insulating element 1. Fig. 2 b shows the insulating element 1 after its separation into two partial insulating 1.2 and 1.3. In order of the insulating element 1 according to Fig. 2 a to the partial insulation elements 1.2, 1.3 according to Fig. 2 b to arrive, the insulating element is torn apart by hand in the area of the slits 2.1. The resulting at the partial insulation elements 1.2, 1.3 edges, in particular of the material web 3, are smooth and do not affect the further processing of the insulating element 1. The clamping capability is retained.

The insulating element 1 according to Fig. 3 has - similar to the insulating element 1 according to Fig. 2 - About two in the range of both large surfaces 1.1 arranged slits 2.1. Between the opposite slits 2.1, a material web 3 is arranged, which has a perforation 2.2. The perforation 2.2 is arranged only in a partial region of the material web 3. In the rest Regions the material web 3 is still solid. Fig. 3 a shows the state before separation of the insulating element. Fig. 3 b shows the state after the separation. The separation of the two partial insulating elements 1.2, 1.3 takes place here again by hand by tearing apart of the insulating element 1 in the region of the slits 2.1.

Fig. 4 shows a cross section through an insulating element 1. The insulating element 1 has two slits 2.1, which are arranged in the areas of the large surfaces 1.1. Between the slots 2.1 is a region within the insulating element 1, which has both perforations 2.2 and material webs 3 formed in partial areas. The material webs 3 and the perforations 2.2 are arranged alternately in a grid pattern. As shown, the perforations 2.2 can be designed symmetrically or alternatively also asymmetrically with different punched images.

Fig. 5 shows a cross section through an insulating element 1, in which the entire area between the large surfaces 1.1 is formed with a grid-shaped arrangement of perforations 2.2 and 3 material webs. This embodiment is particularly suitable for particularly thin insulating elements. 1

Fig. 6 shows a wedge table for an insulating element 1 with a total length of 1220 mm and a width of 580 mm, which is divided diagonally into two partial insulating elements 1.2, 1.3. By mutually displacing the two wedge-shaped partial insulating elements 1.2, 1.3, a rectangular core surface results, which has the area shown in column 3 (m ² ). The sections of the partial insulating elements 1.2, 1.3 projecting beyond the rectangular shape are shown in column 4 (section in m ² ). Column 5 (section in%) shows the percentage of these partial insulating 1.2, 1.3 in relation to the total area of the insulating element 1. Based on the total area of the insulating element 1 according to line 9, namely 1220 mm x 580 mm, the table in the ascending direction shows the Situation with a shortening of the length of the rectangular shape, while the table in descending direction shows the situation with an increase in the length of the rectangular shape.

With the invention, an insulating element 1 is created as a whole, which is present in its initial form, first in a standard format and then can be adapted at the place of use to the corresponding spatial conditions. For this purpose, the insulating element 1 is divided along one or more material weakenings 2 introduced by the manufacturer into several partial insulating elements 1.2, 1.3. The Fragmentation takes place by tearing apart of the insulating element 1 by hand or alternatively by a tool such as a knife.

The material weakening 2 is a predetermined breaking point in the form of a slit 2.1 and / or a perforation 2.2. This can be formed on one side or two sides in the insulating element, d. H. in the area of one of the large surfaces 1.1 or in the area of both large surfaces 1.1. In a two-sided slit 2.1 or perforation 2.2 remains between the large surfaces 1.1 a material web 3 stand, which ensures the necessary stability, processability and clamping ability of the insulating element 1 even in the event that the insulating element 1 is not separated into partial insulating 1.2, 1.3. If this material web 3 additionally has a perforation 2.2, it can be parallel or perpendicular to the large surfaces 1.1 formed larger than in the case of a non-perforated material web 3. A larger material web 3 lends itself in cases where a special rigidity of the insulating element 1 is desired.

For particularly thin insulating elements 1, the embodiment offers according to Fig. 5 according to which the insulating element 1 has a material weakening 2 in the entire distance between the large surfaces 1.1. The material weakening 2 consists of a latch-shaped perforation 2.2, wherein between each two perforations 2.2 each a material web 3 is arranged. Alternatively, the insulating element 1 may also have a material weakening 2, which alternately perforations 2.2 and 2.1 slots includes. The grid can in each case be formed symmetrically or asymmetrically with different widths of the perforations 2.2, slits 2.1 or material webs 3. Furthermore, the insulating element 1 may also have a material weakening 2, which shows a continuous perforation 2.2 perpendicular and parallel to the large surfaces 1.1.

If the insulating element 1 is divided into several partial insulation elements 1.2, 1.3, results from the tearing apart of the insulating element 1, an edge in the area where previously the material web 3 or the perforation 2.2 was arranged. The torn edges in the region of the material web 3 or the perforation 2.2 do not affect the further processing of the partial insulating elements 1.2, 1.3. Likewise, the clamping capacity is maintained. Overall, a post-processing of the partial insulation elements 1.2, 1.3 thus not required.

The invention is generally applicable to all insulation elements 1, which consist of bonded insulation fibers. These may in particular be mineral insulation materials, organic synthetic insulation materials, plant insulation materials or even animal insulation materials. The insulating element 1 can be present as a plate, mat, rolls, felt, fleece and / or molded part. The insulating element 1 or its partial insulating 1.2, 1.3 can be used for the purpose of heat / cold protection, sound insulation, fire protection or moisture protection. The application areas are in the field of civil engineering, technical insulation, vehicle construction or machine and equipment construction.

Bezuaszeichenliste

1

insulating element

1.1

large surface

1.2

Part insulating element

1.3

Part insulating element

2

material weakening

2.1

slitting

2.2

perforation

3

material web

Claims (10)

Insulating element (1) of bonded insulating fibers, which has a body with two substantially parallel arranged large surfaces (1.1) and arranged at right angles to these side surfaces,
characterized,
that the insulating element (1) is substantially perpendicular to the large surfaces (1.1) has one or more material weakenings (2). Insulating element (1) according to claim 1, characterized in that the material weakening (2) is a predetermined breaking point in the form of a slit (2.1). Insulating element (1) according to claim 1 or 2, characterized in that the material weakening (2) is a predetermined breaking point in the form of a perforation (2.2). Insulating element (1) according to one of claims 1 to 3, characterized in that the material weakening (2) is formed only in the region of one of the large surfaces (1.1), advantageously up to the middle of the distance between the large surfaces (1.1). Insulating element (1) according to one of claims 1 to 3, characterized in that the material weakening (2) in the region of both large surfaces (1.1) is formed opposite, wherein in the area between the large surfaces (1.1 a material web (3) remains. Insulating element (1) according to any one of the preceding claims, characterized in that it is rupturable along the material weakening (2) in at least two partial insulating elements (1.2, 1.3) or separable with hand-separating tools. Insulating element (1) according to one of the preceding claims, characterized in that the material weakening (2) is arranged parallel to the side surfaces. Insulating element (1) according to one of the preceding claims, characterized in that the material weakening (2) diagonally is formed through one or both major surfaces (1.1). Insulating element (1) according to any one of the preceding claims, characterized in that the material weakening (2) is formed grid-shaped. A method for producing an insulating element (1) according to any one of the preceding claims, characterized in that in the insulating element (1) on one side or both sides up to a desired distance perpendicular to the large surfaces (1.1) a slit (2.1) and / or perforation (2.2) is introduced.

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