CZ25686U1 - Air draught-preventing roller blind - Google Patents

Description

The technical solution concerns anti-draft roller blinds designed for separation of various areas, mainly for reasons of separation of areas and covering of areas against bad weather.

BACKGROUND OF THE INVENTION

Many different roller blind designs are currently known, with the largest number of blinds designed for shading windows, including roof blinds, and various roller blind designs for the automotive industry, whether as window blinds or luggage compartment blinds, especially for cars estate or a compact five-door version of passenger cars.

Much less technical solutions deal with roller shutters for separating large areas, for covering openings, eg in farm buildings and the like. This type of roller shutter is largely provided with a lateral slide guide to ensure proper roller shutter guidance. This kind of construction is described, for example, in patent applications PV 1994-766, where it is stated that the lateral edges of the orifice plate are displaceably mounted in a lateral slide guide. However, this construction has the disadvantage that for larger surfaces several blinds are needed side by side and thus the space to be covered is divided into several parts, which can cause problems, for example, in material handling.

Another solution how to ensure proper guiding of the curtain is described in utility model No. 5507, where a tunnel is created in the lower part of the curtain and a weight is inserted in it, which guards the curtain by its weight when winding or unwinding the curtain. The disadvantage of this solution is that in case of higher wind the weight is insufficient with respect to the aperture surface and the aperture moves and leaks. There is a risk of injury to persons near the roller shutter when rocking this weight.

The essence of the technical solution

The above-mentioned deficiencies are largely solved by the anti-draft roller blind according to this technical solution, which is formed by a roller on which the orifice is wrapped, which unwinds to the ground and creates a barrier. The air curtain can be triggered by the engine or manually. In order to keep the curtain in the wind stable and thus to meet the requirements for covering the rooms against bad weather, it is provided at its lower end with a terminating profile made of solid material, preferably aluminum, which prevents the curtain from deforming vertically. In order to prevent the curtain from moving in the horizontal plane, at least two hooks (preferably about 1 lm / lm blind width) are formed in the corners of the curtain on the end profile, which are snapped into the handrail embedded in the ground. a hook to catch the hook-shaped clip. Rewinding strengthens the screen and it does not move and twist either in vertical or horizontal direction even in strong wind.

To reinforce the edges of the aperture formats, a steel strip prestressed in a transverse arc (similar to a tape measure) is fastened (vulcanized) vertically. When the curtain is wound, the strip is rolled together with the curtain, while the curtain is lowered and the steel strip is straightened, the edge of the curtain is strengthened due to the lateral bending of the strip.

Overview of the drawings

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be explained in more detail with reference to the drawing, in which Fig. 1 shows the whole draft shield from the front view, Fig. 2 shows the clip from the side view, Fig. 3 shows the handle from the top view.

-1 CZ 25686 Ul

Example of technical solution

The anti-draft roller blind is composed of an orifice that unwinds or winds on roller 2. This is done either by the engine or manually. At the bottom of the curtain 1 there is a terminating profile 3 with fasteners 4 attached at both ends of the profile 3. The anti-draft roller blind construction comprises two handles 5 which are sunk into the ground (floor) against the fasteners 4. In order to strengthen the edges of the aperture formats X, a steel strip 12 biased into a transverse arch (similar to a tape measure) is fastened (vulcanized) in a vertical direction. When the curtain 1 is wound, the strip 12 is rolled together with the curtain 1, while the curtain 12 is lowered and the steel strip 12 is straightened due to the lateral bending of the ribbon 12, the edge of the curtain is strengthened

For larger aperture 1 dimensions, the band 12 is located not only at the edges of the aperture 1, but also at predetermined distances from the edges of the aperture 1.

When the visor 1 is pulled off, the clips 4 are fixed to the handles 5 and the winding strength of the visor 1 is also ensured by the winding up. The whole blind is thus stable and can fulfill its intended function.

Industrial applicability

This technical solution can be used wherever it is necessary to separate the premises or to secure the premises against bad weather.

Claims (3)

PROTECTION REQUIREMENTS An anti-draft roller shutter comprising a roll (2) for winding or unwinding the shutter (1), characterized in that the shutter (1) is terminated by a fixed end profile (3) on which at least two clips (4) are attached. are intended to be attached to at least two handles (5). An anti-draft roller blind comprising a roll (2) for winding or unwinding the visor (1) according to claim 1, characterized in that the clip (4) has a hook shape and the handle (5) comprises a cross bar (6) passing through the handle (5) by which the clip (4) is attached. An anti-draft roller blind comprising a roll (2) for winding or unwinding the screen (1) according to claim 1, characterized in that a steel strip (12) is fixed vertically to the edges of the screen (1) to strengthen the edges of the screen (1). ) with lateral deflection.