SK500072009A3 - Stabilizer of screen roller shutter - Google Patents

Abstract

A device for stabilizing the movement of the blind (2) of the roller shutter comprises a spring arm (6) of the stabilizer (5), of which one end is through the base (7) of the stabilizer (5) by the threads (9) fastened to the mounting rail (4) or bolted (16) into the wall and its second, free end contains the shaped recess (12) or recesses into which it is inserted a set of guide rollers (8) freely rotatable therein recesses (12) around their axes that are parallel with the horizontal axis of the roller tube (1), the rollers (8) are permanently pressed from above by the spring arm (6) the part of the blind (2) of the roller shutter wound in the coil (15) around the roller tube (1), thereby stabilizing the screen (2) laterally in its winding and unwinding.

Description

Obiasť technikv

BACKGROUND OF THE INVENTION The present invention relates to a device for stabilizing roller blind shutter movement, comprising a flexible stabilizer arm, one end of which is attached to a mounting rail or screwed to a wall via a rivet stabilizer base and its other free end comprises a shaped recess. recesses in which a plurality of guide rollers are inserted freely rotatable in these recesses about their axes parallel to the horizontal axis of the roller tube, the rollers being elastically pushed from above onto a portion of the roller blind blind wound in the roll around the roller tube, thereby stabilize when winding and unwinding.

BACKGROUND OF THE INVENTION

The reason for the need for additional stabilization of the blind of the roller blind is especially the fact that if the specific weight of the curtain material in conjunction with the weight of the lower curtain rod under gravity is not sufficient to ensure reliable winding of the curtain in the vertical direction without lateral deviations. consoles respectively. o Roller shutter and roller shutter blind, or in the worst case, damage to the curtain.

There is known a solution for stabilizing the movement of the blind of a long roller blind during its winding, where on both sides of the blind are vertically stretched two guide steel cables, guided through the side openings in the lower curtain rod attached to the lower edge of the curtain, both firmly anchored into the wall above the lower diaphragm rod (for the upper anchorage) and below the lower dead center (for the lower anchorage) of the lower diaphragm rod, together limiting its lateral movement. The disadvantage of this solution is that it places increased demands on the work of the fitter at the client, but mainly the fact that for the use of steel ropes this solution is often undesirable for safety reasons in areas with massive public access - schools, entertainment centers, canteens etc.

There is also a known solution wherein the lower diaphragm rod is provided on both sides with shaped projections engaging corresponding vertical grooves in profiled guide bars anchored vertically along the vertical edges of the diaphragm, thereby limiting its lateral movement. The disadvantage of this solution is its laboriousness and high cost of assembly due to the use of side guides.

A solution according to SK280957 is also known, wherein the lower diaphragm rod is guided in vertical guide rails and at the same time utilizes guide steel cables which are guided inside the lower diaphragm rod, which are mounted mirror-inverted to one another.

For a certain similarity of some parts with my solution, I present a solution in the field of slatted roller shutters according to WO9819038A1, which uses similar wheels respectively. the rollers cooperating with the orifice plate formed here, as I use in my solution, with the difference that these wheels are attached to the drive shaft and their only task is to transmit the torque from the shaft to the plate assembly. The stabilization of the curtain is in this case solved by a pair of lateral guides and laterally also by the weight of the lamella system.

SUMMARY OF THE INVENTION

The aforementioned drawbacks are eliminated by a roller shutter mounted on a mounting rail, comprising a flexible stabilizer arm, one end of which is fixed to the mounting rail via the base of the rivet stabilizer while the other, the free end comprises a shaped recess respectively. recesses in which a plurality of guide rollers are freely rotatable in said recesses about their axes parallel to the horizontal axis of the roller tube, the rollers being resiliently pressed from above by a spring arm on a portion of the orifice which is wound at that moment in the roll around the roller tube; at a point as close as possible to the point at which the diaphragm vertically leaves the coil, thereby stabilizing the diaphragm both during winding and unwinding. By permanently contacting the flexible arm with the diaphragm, it is ensured that the diaphragm does not laterally change its position on the roller tube during its vertical movement, thereby preventing the diaphragm from accidentally coming into contact with the winding or mounting brackets, otherwise leading to blinds and damaging the diaphragm. This solution is particularly suitable for (long) blinds with a blind made of hard, rigid fabric as well as narrow roller shutters.

Advantageously, additional longitudinal screw holes are provided substantially for the stabilizer for situations where the roller shutter is mounted directly to the wall without the mounting rail. These longitudinal openings are located on a circle with a center placed in the center of the base and shaped so that the stabilizer can be further rotated around the center of its base after a slight loosening of the screws.

BRIEF DESCRIPTION OF THE DRAWINGS

In FIG. 1 is a transparent side view of a roller shutter arrangement with a stabilizer for mounting using a mounting rail

In FIG. 2 is a perspective view of a roller shutter arrangement with a stabilizer for mounting using a mounting rail

In FIG. 3 is a perspective view of the roller shutter arrangement with stabilizer for alternative mounting without mounting rail

In FIG. 4 is a perspective view of a stabilizer

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT (Fig. 1) A shutter 2 is wound on the roller shutter tube J. lowered depending on the direction in which the winder 10 is turned. The roller shutter is fixed in the mounting rail by means of two side mounting brackets 11 into which it is removably anchored. (Fig. 2) In the same mounting rail 10, two stabilizers 5 of the curtain 2, each on the opposite edge of the roller shutter 2, are attached from below by the rivets 9, just before the mounting brackets 11. (Fig. 4) the spring arm 6 and the guide roller assembly 8 wound into the C-shaped recess 12 at the end of the spring arm 6. The guide rollers 8 are freely rotatable about their axes, which are parallel to the horizontal axis of the roller tube 1. 7 of the stabilizer 5 there are circular holes 13 for the rivets 10 which are the stabilizers 5 connected to the mounting rail 1.1. Advantageously (Fig. 3), two additional longitudinal holes 14 for the screws 16 are provided in addition to the holes 13 for the threads 9, in the case that the roller blind is mounted directly into the wall without the mounting rail 4. These longitudinal openings 14 are located on a circle centered in the center of the base 7 and shaped to allow the base t of the stabilizer 11 to be rotated around its center slightly after loosening the previously screwed screws 16, to better "fit" the stabilizer 5 in the roll 15. stabilizers 5 of the orifice 2 positioned so that their guide rollers 8, which are pushed by the elastic arms 4 on the part of the orifice 2, which is wound in a roll 15 around the roller tube 7, are constantly in contact with this orifice. 6 resp. the legs of the stabilizer 5 are made of flexible steel sheet of a thickness of about 0.6mm, whereby at those points of the base 7 in which the stabilizer 5 of the visor 2 is mounted threaded 9 to the mounting rail 4 resres. By bolts 16 screwed directly into the wall, the steel sheet is folded in two, thereby achieving sufficient rigidity in these joints while maintaining the flexibility of the arms 6.

Claims (2)

PATENT CLAIMS A device for stabilizing a blind of a roller blind mounted on a mounting rail, characterized in that it comprises a flexible arm (6) of the stabilizer (5), one end of which is attached to the mounting rail (9) via the base (7). 4), while the second, free end thereof comprises a shaped recess (12) and 12, respectively. recesses in which a plurality of guide rollers (8) are freely rotatable in said recesses (12) about their axes parallel to the horizontal axis of the roller tube (1), the rollers (8) being permissively pressed from above on the elastic arm (6) the upper part of the orifice (2), which at that moment is wound in a roll (15) around the roller tube (1), at a point as close as possible to the point where the orifice (2) vertically leaves the roll (15) thereby stabilizing the orifice (2) during its winding and unwinding. Apparatus according to claim 1, characterized in that longitudinal holes (14) for screws (16) are provided in the base (7) of the stabilizer (5) to allow direct mounting of the stabilizer (5) without the mounting bar (4), the longitudinal holes (14) are placed on a circle centered on the center of the base (7).