DE202009003292U1 - External blinds and outdoor blinds range - Google Patents

Abstract

External blind with a plurality of superposed, each about at least one extending in the direction of the longitudinal extent of the slats pivot axis (4) and in the vertical direction (2) adjustable slats (3) with a base body (7) made of a transparent plastic, characterized in that the base body (7) is provided with a heat protection coating (8).

Description

The The invention relates to an external blind with several superimposed arranged, in each case by at least one in the direction of the longitudinal extent of the lamella running (in particular imaginary) pivot axis pivotable and in the vertical direction (stacking direction) adjustable slats, with each a base body made of a transparent plastic. Furthermore, the invention relates to an outdoor blinds range, comprising at least two different in at least one feature External blinds according to claim 9.

From the DE 33 354 29 A1 and the DE 1 980 941 as well as the DE 27 523 88 A1 are different embodiments of generic external blinds, comprising a plurality of superimposed, and known transversely to the vertical direction of the outer blind extending slats. In all, from these publications previously known external blinds is disadvantageous, the outer blinds completely obscure a space behind it in the fully closed state.

Therefore are outside blinds known with Plexiglas lamellas, in which a sunscreen is achieved by reflection of solar radiation, wherein the reflection due to a prismatic structure of Plexiglaslamellen is caused. Such external blinds are from sold by Degussa. The known exterior blinds seem u. a. in terms of their thermal protection properties in need of improvement.

Next the exterior are known indoor blinds, due to the Arrangement within a room no heat protection Provide solar radiation.

One Good thermal insulation can also be achieved by coating windows reached on the inside with a heat protection film are available in different degrees of tint are. The disadvantage here is that the tint, d. H. the reduced transparency is permanently present, which in particular on non-sunny days subjectively be perceived as disadvantageous can.

Of the Invention is the object of a way to create spaces with an optimal, not necessarily permanent Provide heat protection. Preferably, this is for this purpose Use coming exterior blinds be sturdy.

These Task is in a generic outdoor blind achieved in that the example by means of an electric motor vertically adjustable and / or one, in particular imaginary Pivot axis pivotable, a main body of a transparent plastic, such as polymethylmethacrylate having lamellae with a thermal insulation coating are provided. By the arrangement of the heat protection coating not directly on the window, but one on the outside wall of a building can be arranged outside blinds, more precisely on the main body of the slats of the external blind can optimal thermal insulation of the room behind it be ensured without the room completely to have to darken. In addition, the Thermal protection degree by pivoting about a pivot axis and / or adjusting the slats in the vertical direction individually adjusted and completely removed if necessary so that in particular on non-sunny days a clear view outside possible is. Another great advantage of the invention Exterior blinds is that in the production There is no need for a prism structure in the transparent plastic slats rather, it is sufficient to use transparent plastics provided with a suitable thermal insulation coating. In addition, one draws after the concept of the Invention formed external blind by a low weight and a good robustness in terms of on the outside of the building prevailing weather conditions. Under transparent slats For the purposes of the invention not only slats with an increased Translucency understood - rather, the plastic lamellae be made of a clear transparent material to the Outside world - if possible unadulterated -, if necessary through the thermal insulation coating something darkened, to be able to perceive. The basic bodies are preferred comparatively stiff and have a density of more than 3 mm, to be sufficiently robust.

One Another advantage of the invention is an efficient operating cost savings by lowering the air conditioning costs. Optionally, you can the additional installation of cost-intensive Tönungsfensterscheiben be waived.

The Providing an outer blind constructed according to the concept of the invention Effective heat protection can be realized - the Exterior blinds reduce the interior temperature up to 12 ° C compared to a window without such an external blind. In addition, with the exterior blinds Glare protection in accordance with the requirements of the VDU Working Regulation be achieved.

In a further development of the invention is advantageously provided that the heat protection coating exerts a significant UV protection function in addition to the heat protection function. Particularly preferably, the thermal barrier coating absorbs at least 50% of the incident UV radiation, vorzugswei at least 60%, preferably at least 75%, more preferably at least 90%, particularly preferably at least 99% of the incident solar radiation. In this way, working or living people are optimally protected from this harmful Sonnenspektralanteil in the room behind the exterior blinds.

Especially it is preferred if the thermal barrier coating only arranged on a single side of the transparent plastic lamella is - especially on the side facing the building, to the thermal insulation coating from the weather better to protect.

In Development of the invention is provided with advantage that the Sun protection coating, reducing the transparency of the slats is formed by the heat shield coating a tinting effect or obscuring effect causes. For this purpose, the thermal insulation coating absorbs a part of the incoming sunlight. Additionally or alternatively, the thermal barrier coating is preferably one Formed part of the incident sunlight reflective, wherein it is even more preferred, although the transparent plastic lamella even a part of the sunlight reflects.

in the With regard to the concrete formation of the thermal insulation coating There are different possibilities. Especially preferred it is when the thermal barrier coating comprises a foil or is formed as a film, wherein films in different Tint levels, especially for different Exterior blinds can apply.

additionally or preferably alternatively, the sunscreen coating of on a base material evaporated material, in particular be formed by vapor-deposited metal. It is further preferred if the deposited material aluminum and / or silver and / or Comprises gold or consists of aluminum and / or silver and / or gold.

Also with regard to the choice of material for the formation of the slats, d. H. of the lamellae main body, which is then provided with a thermal protection coating provided there are different possibilities. Especially suitable is the use of polymethylmethacrylate, which among other things under the trade name Plexiglas or acrylic glass is available. In addition, it is possible the Slats made of transparent polycarbonate or polyvinyl chloride or Polystyrene, polyphenol oxide or polyethylene form.

in the With regard to the adjusting means for pivoting the slats and / or for adjusting the slats in the vertical direction, there are different Options. It is particularly preferred because the exterior blinds arranged in the exterior of a building, For this purpose, an electric motor, which can be controlled from the inside of the room is. Additionally or alternatively, a cable or a Crank drive can be provided, wherein the cable or the crank preferably in the inner space protrude to an actuation as well to allow with the window closed.

The Invention also leads to an outdoor blinds range, with at least two external blinds designed as described above, wherein the external blinds with respect to at least one feature distinguish the thermal insulation coating. It can For example, external blinds with different degrees of tinting the thermal insulation coating in an outdoor blinds range be summarized. It goes without saying possible the different outside blinds types to provide in different dimensions.

Further Advantages, features and details of the invention will become apparent the following description of preferred embodiments as well as from the drawings.

These show in:

1 an example of an exterior blind, and

2 or a transparent plastic lamella with heat protection coating for an external blind. In the figures, like elements and elements having the same function are denoted by the same reference numerals.

In 1 is an exterior blind 1 shown for mounting on the outside of a building in front of a window or in front of a glass door. The exterior blinds 1 includes a variety of in a vertical direction 2 superimposed slats 3 , where the slats 3 extend transversely to the vertical direction. The slats 3 are adjustable in the vertical direction by means of an electric motor, not shown, in a conventional manner, in which case the distance of the slats 3 is minimized in the vertical direction.

In addition to the possibility of adjusting the slats 3 in the vertical direction is every slat 3 around an imaginary, across the high direction 2 extending pivot axis 4 by means of the electric motor, not shown, pivotable. In the embodiment shown, all the slats 3 each of two main strands 5 in the vertical direction 2 interspersed. For adjusting the slats 3 in the vertical direction are the main strands 5 pulled up.

For pivoting the slats 3 become outer strands 6 adjusted. In addition to the illustrated embodiment of an external blind 1 are further, known per se mechanisms for adjusting and pivoting the slats 3 known, which are additionally or alternatively feasible.

In 2 is a possible, used lamella 3 shown.

The slat 3 includes a main body 7 from a transparent, ie transparent material, here polymethylmethacrylate. At the base body 7 it is a pale body with smooth sides and faces.

On one - here upper - face of the body 7 there is a heat protection coating 8th , For example, in the form of a correspondingly toned, most preferably self-adhesive, foil or alternatively from one to the base body 7 evaporated material.

The heat protection coating 8th is located on only one side of the body 7 Preferably on the side facing the building, around the thermal barrier coating 8th optimally protected from the weather.

1

external blinds

2

vertical direction

3

slats

4

swivel axis

5

main line

6

outside bar

7

body

8th

Thermal barrier coating

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 3335429 A1 [0002]
• - DE 1980941 [0002]
• DE 2752388 A1 [0002]

Claims (10)

External blind with a plurality of superimposed, each at least one extending in the direction of the longitudinal extension of the slats pivot axis ( 4 ) pivotable and in the vertical direction ( 2 ) adjustable blades ( 3 ) with a basic body ( 7 ) made of a transparent plastic, characterized in that the basic body ( 7 ) with a heat protection coating ( 8th ) is provided. External blind according to claim 1, characterized in that the thermal insulation coating ( 8th ) is designed as UV protection, preferably such that it is suitable for at least 50% of the UV radiation, preferably for at least 60% of the UV radiation, preferably for at least 75% of the UV radiation, more preferably for at least 90% of the UV Radiation, particularly preferably for at least 99% of the UV radiation is not permeable. External blind according to one of claims 1 or 2, characterized in that the thermal insulation coating ( 8th ) absorbing and / or reflecting part of the incident sunlight are formed. External blind according to one of the preceding claims, characterized in that the heat-insulating coating ( 8th ) Comprises film or is formed as a film. External blind according to one of the preceding claims, characterized in that the heat-insulating coating ( 8th ) comprises vapor-deposited material or is formed as a vapor-deposited material. External blind according to claim 5, characterized in that that the deposited material aluminum and / or silver and / or Comprises gold or consists of aluminum and / or silver and / or gold. Exterior blinds after one of the previous ones Claims, characterized in that the slats Polymethyl methacrylate, or polycarbonate, or polyvinyl chloride, or polystyrene, polyphenol oxide, polyethylene are formed. External blind according to one of the preceding claims, characterized in that lamellas ( 3 ) are pivotable by means of a crank drive, or a cable or an electric motor and / or adjustable in the vertical direction. Exterior blinds range comprising at least two different external blinds ( 1 ) according to any one of the preceding claims, wherein the thermal protective coatings ( 8th ) of the slats ( 3 ) of the different outer blinds ( 1 ) with regard to at least one property. Outdoor blinds range according to claim 9, characterized in that the thermal insulation coatings ( 8th ) with regard to their Tönungrade differ.