Slatted blinds

Abstract

Blind (1) with a number of slats (10) arranged parallel to each other, further comprising an upper box (11) from which tension means (12) are led out, on which the slats (10) are suspended, wherein the slats (10) have a top (10a) and a bottom (10b), characterized in that the slats (10) are made of a metallic material, wherein the top (10a) has a light-absorbing coating (13) and wherein the surface on the bottom (10b) of the slats (10) is formed by the metallic shiny surface of the metallic material.

Description

[0001] The invention relates to a blind with a number of slats arranged parallel to each other, further comprising an upper box from which traction elements are led out, on which the slats are suspended, wherein the slats have a top and a bottom. STATE OF THE ART

[0002] For example, DE 199 26 272 C2 discloses a blind with a number of slats arranged parallel to each other, the inclination of which can be adjusted via a pull cord. The slats are to be made of a translucent material, and the concave and convex outer surfaces of the slats are to have different coatings in order to achieve specific lighting effects in the room, depending on the coating. These lighting effects include, for example, increased reflection, a concentration of light into the room, or a focusing of light, so that different lighting effects can be achieved depending on the inclination of the slats. REVELATION OF THE INVENTION

[0003] The object of the invention is to advantageously utilize different lighting effects of the top and bottom of the slats of a blind, for which the slats should be manufactured in the simplest possible way.

[0004] This problem is solved starting from a louvered blind according to the preamble of claim 1 in conjunction with the characterizing features. Advantageous embodiments of the invention are specified in the dependent claims.

[0005] The invention includes the technical teaching that the lamellae have a metallic material, wherein the top side has a light-absorbing coating and wherein the surface on the underside of the lamellae is formed by the metallic shiny surface of the metallic material.

[0006] With the inventive design of the slats, a blind can be created in which, depending on requirements, light exposure and season, either the light-absorbing upper side of the slats can be aligned towards the incident sunlight or the highly reflective underside of the slats can be aligned towards the incident sunlight and thus used to direct a particularly large amount of light into a room.

[0007] A further special feature of the invention is the simple and cost-effective production of the lamellae from, for example, a pre-coated sheet metal material, from which the lamellae are manufactured, so that they do not need to be coated subsequently in their individual configurations. In particular, if the lamellae are made of aluminum, the metallic, shiny surface of the aluminum can already be used to create a highly reflective underside of the lamellae, while a simple, one-sided coating of the lamellae creates the light-absorbing upper side.

[0008] The light-absorbing coating can be formed by a black or at least dark paint or a black or at least dark surface coating on the upper surface of the louvers. An electrochemical treatment of the upper surface is also conceivable, and a process called anodizing can be used to create a black, anthracite, or otherwise light-absorbing surface. The underside, on the other hand, can be polished, for example.

[0009] The louvers can have a curved cross-section, with the convex side of the curve forming the top and the concave side the bottom. Finally, the light-absorbing coating can be in either the deep black RAL 9005 or the graphite black RAL 9011.

[0010] A particular advantage is that the slats can be manufactured from sheet metal using a punching and bending process, with the sheet metal already having the light-absorbing coating before the slats are produced. Standard aluminum sheets can be used to manufacture the slats, which can already have a coating in the RAL color shown above, as is known per se. If such sheets are used to manufacture the slats for the blind according to the invention, they can be provided in a particularly cost-effective manner, since the slats themselves do not need to be subsequently coated, glued, or painted.

[0011] The blind may have an adjusting mechanism that is located on the upper box and with which the slats can be tilted via a pulling mechanism.

[0012] Finally, the operating mechanism can be a cord, a flat band, or, for example, a steel cable. The blind can be designed for installation on the inside or outside of a building window, or it can be used to shade vehicle interiors, meaning it could also be used in the automotive sector.

[0013] The slats themselves are usually designed with a constant cross-section and run straight, although blinds are also known that can have a curvature, see for example DE 20 2004 019 318 U1.

[0014] The upper box of the blind typically has mounting hardware for attaching it to a wall, window frame, or similar surface. The bottom of the blind may have a bottom rail that can be pulled up using the pull cords, so that the slats lie flat between the bottom rail and the upper box, for example, to raise the blind completely, thus removing any obstructions from the window. PREFERRED EXAMPLE OF THE INVENTION

[0015] Further measures improving the invention are described in more detail below, together with a description of a preferred embodiment of the invention, with reference to the figures. The figures show: Fig. 1 a blind with a number of slats, the underside of which points upwards, and Fig. 2 the blind according to Fig. 1, wherein the slats were twisted so that the top of the slats faces upwards.

[0016] The Fig. 1 and Fig. Figure 2 shows a blind 1 with a number of slats 10 that have a curve or curvature. The outer side of the curvature forms the top 10a, and the inner side forms the bottom 10b of the slat 10. The slats 10 are held in place by pull cords 12 on a headbox 11, which are exemplified by a cord. The pull cord 12 can also be operated manually and is led out of the headbox 11 in front of the slats 10. Pulling the pull cord 12 raises a bottom profile 15, which is also suspended from the pull cord 12. An adjusting element 14, which can be rotated, is used to adjust the tilt of the slats 10. This can be rotated according to the direction of the arrow. Fig. 1 and in Fig. 2 are rotated so that, as shown in the illustration, the slats 10 are also rotated along their respective longitudinal axis. The rotation of the slats 10 is the same for all slats 10, so that all slats 10 can be positioned with either their top 10a or their bottom 10b facing the incident light 16.

[0017] The in Fig. 1. The upward-facing underside 10b has a polished surface of the metallic lamellae 10, and in Fig. 2 the top side 10a is turned upwards so that the coating 13 points upwards.

[0018] In Fig. Figure 1 shows incident light 16 falling on the shiny underside 10b of the louvers 10, and the incident light 16 can be reflected into the room. This occurs according to... Fig. 2. When the incident light 16 falls onto the coating 13 of the slats 10, no reflection occurs (or only a negligible one), so that, for example, in hot summer months the coating 13 can be turned outwards to avoid reflecting the incident light 16. In winter months, the blind 1 can be adjusted so that the shiny underside 10b is exposed according to Fig. 1 is rotated in the opposite direction to the incident light 16, so that the incident light 16 is reflected inwards and in particular towards the ceiling, creating a pleasant light.

[0019] The invention is not limited in its implementation to the preferred embodiment described above. Rather, a number of variants are conceivable, which utilize the solution presented even in fundamentally different designs. All features and / or advantages arising from the claims, the description, or the drawings, including design details or spatial arrangements, can be essential to the invention, both individually and in various combinations. Reference symbol list: 1 blind 10 slats 10a Top 10b Underside 11 Upper case 12 traction elements 13 Coating 14 actuators 15 Final Profile 16 incident light QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 199 26 272 C2

[0002] DE 20 2004 019 318 U1

[0013]

Claims

Blind (1) with a number of slats (10) arranged parallel to each other, further comprising an upper box (11) from which tension means (12) are led out, on which the slats (10) are suspended, wherein the slats (10) have a top (10a) and a bottom (10b), characterized in that the slats (10) are made of a metallic material, wherein the top (10a) has a light-absorbing coating (13) and wherein the surface on the bottom (10b) of the slats (10) is formed by the metallic shiny surface of the metallic material. Blind (1) according to claim 1, characterized in that the light-absorbing coating (13) is formed by a black or at least dark lacquer or a black or at least dark surface coating on the top surface (10a). Blind (1) according to claim 1 or 2, characterized in that the surface on the underside (10b) is polished. Blind (1) according to one of claims 1 to 3, characterized in that the slats (10) have a curvature in their cross-section, wherein the convex side of the curvature forms the top (10a) and the concave side of the curvature forms the bottom (10b). Blind (1) according to one of the preceding claims, characterized in that the light-absorbing coating (13) has the deep black RAL color 9005 or the graphite black RAL color 9011. Blind (1) according to one of the preceding claims, characterized in that the slats (10) are manufactured from a sheet metal material by means of a punching and bending process, which already has the light-absorbing coating (13). Blind (1) according to one of the preceding claims, characterized in that an actuating means (14) is provided which is arranged on the upper box (11) and with which the slats (10) can be tilted via the traction means (12). Blind (1) according to one of the preceding claims, characterized in that the traction means (12) are formed from a cord, a flat band or a steel cable.

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