RU2228419C2 - Curtain, particularly mosquito curtain - Google Patents

Abstract

FIELD: building industry, particularly protective devices for windows or doors. SUBSTANCE: curtain, particularly mosquito curtain for window or door opening has wind-up shaft, curtain guiders and web of mosquito fabric, which may be winded on shaft and un-winded from shaft. Guiders are connected to window or door opening sides and are opened towards web. Curtain has at least one rotary bar, which enters curtain guiders for stepless web fixation. Rotary bar may be moved against spring action from blocking position into curtain lowering position. EFFECT: increased efficiency. 9 cl, 5 dwg

Description

The invention relates to a curtain, in particular a mosquito curtain, for closing a window or doorway containing a web unwound from the winding shaft and wound around it, for example, mosquito net, as well as curtain rails located on the sides of the window or doorway and open in the direction of the web.

A similar curtain is described, for example, in DE 19639478 A1. Here the curtain rails are equipped with elastically deformable stopping elements, which are stiff-elastic bristles. Thus, reliable and reliable lateral guiding without the risk of gaps or tearing of the web or mosquito net should be ensured at no cost during the manufacture and installation.

To actuate the known curtains, a handle is used, which can be fixed on the lower transverse bar of the corresponding window frame. Therefore, intermediate positions of the curtain, for example a half-open position, are not possible.

To realize stepless fixing of the curtains, the prior art has proposed, inter alia, disengaged brakes, described, for example, in US 6142211. Such actions determine the relative cantilever design of the corresponding winding shaft, which, in particular, is a disadvantage when such a curtain should be installed existing devices in which only a limited installation volume is available. As an example of this, mention should be made of a casing for placing a web of a roller shutter or an additional curtain, in particular a net curtain of flies. Similar problems arise when such a curtain needs to be combined with a window for summer caravans, residential vehicles, etc. (see DE 19651618 A1).

The objective of the invention is to create such a curtain, in particular a mosquito curtain, the above-described form of execution, which provides stepless fixation with a compact and simple design.

To solve this problem, the invention for the birth curtain for steplessly fixing the canvas or curtain, at least one rotary bolt included in the corresponding curtain guide, which can be moved against the spring force from the lock position to the release position. This pivot bolt is attached to a tire placed on the web, in most cases at the end, and enters the curtain guide. Usually, two rotary crossbars are realized, which are located opposite each other on both sides of the tire located at the end of the blade and enter the corresponding curtain rails.

The curtain rail is in most cases a U-shaped profile tire, which is made in the form of a plastic or metal profile tire. This curtain rail can be combined with the roller shutter guide provided as an addition if the described curtain is installed in or on the roller shutter casing. In this case, the roller guide or the roller shutter guide can form a common structural part, or they can be interconnected by a fixing connection, as described in DE 199464057.

The curtain, in particular the mosquito curtain, is predominantly a “jump” curtain, in which the web to be wound must be unwound from the winding shaft against the spring force and which, when the web is released, spontaneously wound or wound onto the winding shaft. Such a "jump" curtain is described in detail in the publication DE 19640846 A1, to which reference is made.

To realize the locking and releasing position in the curtain according to the invention, a single actuating element is predominantly used, which is mounted on a tire located at the end of the web, which, in addition, carries both opposite pivot bolts. In principle, it is also possible for a tire-independent joint of a single actuator element.

This actuator is an actuator or traction unit. The latter makes a mainly linear movement in the direction of winding the web to translate the pivot bolt to various positions (at least the blocking position and the releasing position). At the same time, a rotary handle is also suitable as an actuating element, if it is guaranteed that the rotary bolts, which in most cases enter the corresponding guide rail of the curtain at the end of the tire, can be translated into different positions.

In more detail, the actuator acts on at least two swing arm levers corresponding to these curtain rails. These swinging levers transform the linear movement of the actuating element in the direction of winding the web into a combined rotational-traction movement perpendicular to it. This combined rotational-traction movement passes, like the winding direction, in the plane formed by the web, only mainly perpendicular to the winding direction. This is explained in more detail in the context of the description of the figures.

In any case, the linear movement of the actuating element ensures the translation of the corresponding rotary bolt against the spring force from the lock position to the release position.

The pivot bolt includes in most cases an anchor and a lamb mounted with the possibility of rotation relative to it. This lamb is preferably a two-shouldered lamb, which at both ends with the corresponding blocking enters the open curtain rail. In this case, the lamb or two-shouldered lamb passes uniformly collinearly in the release position of the pivot bolt in comparison with the end plate of the anchor or in comparison with the longitudinal length of the slot corresponding to this curtain guide. This ensures that the web, and thus also the tire located at the end of the web, can freely reciprocate in the open curtain guide in the slot when the pivot bolt is in the release position.

On the contrary, in the locked position, the lamb or two-shouldered lamb forms a predetermined angle with said end plate or a longitudinally extending slot of the curtain rail. The consequence of this is that both ends of the lamb are adjacent with a wedge action to both knees, made in most cases in section by a U-shaped curtain rail. In the locked position of the rotary bolt, the curtain, therefore, is jammed securely in the guides. It is only necessary to ensure that the applied wedging force exceeds the available return force, so that the web remains in position.

When moving from the lock position to the release position, the lamb performs in most cases a combined rotational-linear movement against the force of the spring. To realize this movement, the lamb is connected to an actuating pin, which, in turn, is loaded with a connecting device connected to the actuating element. This connecting device may be a rod, cable, suitable twine, etc.

The curtain, in particular the mosquito curtain, has a particularly simple and compact design. For disengaged brakes of complex design, as they are disclosed in the prior art, are not required (see US 6142211). Nevertheless, stepless fixing of the curtain or the canvas is ensured and, thus, a flexible and variable closure of the corresponding window or doorway. For this purpose, it is only necessary to load the actuator so that the pivot bolt is moved from its normally occupied lock position to the release position. Since for the most part on both ends of the web or on both sides of the tire there are two pivoting bolts at the end, skews of the web can be reliably eliminated. While the actuator is loaded, both pivoting bolts are in their release position, so that the web, tire at the end, and thus the curtain, can generally move up and down freely in both rails.

Only when the actuator is released again, the pivoting bolts move to their locking position, since they are loaded with a spring, which in most cases covers the actuator pin attached to the wing and rests on the anchor base. Thus, the curtain and the canvas can be continuously fixed, so that, for example, you can close the sliding door located behind the curtain, water the flowers on the windowsill or control the shutter. Therefore, it is no longer necessary to open the entire curtain for such actions, which is a noticeable advantage, especially in the summer with a large number of insects.

Due to the compact and simple design, it is possible to combine a curtain with a roller shutter casing without problems, in particular to integrate it into it. Special measures on curtain rails are also not required, so that retrofitting is possible without problems. This should be seen as significant advantages.

The invention is explained in more detail below using only one example of a drawing, which shows:

- figure 1: curtain, according to the invention, in perspective;

- figure 2: a schematic section of figure 1 along the line aa;

- figure 3: view of the actuating element in figure 2 with the removed sheet from the direction X;

- figure 4: rotary bolt in perspective in disassembled form;

- figure 5: front view of the rotary bolt in various functional positions.

The figures depict a curtain, in accordance with an exemplary embodiment of a mosquito curtain. It serves to close the window or doorway 1. The curtain design 2 refers to the winding shaft 2, on which the web 3. Unwound from it and wound around it, is located. Cloth 3 is a mosquito net 3 made as an example. Of course, a more or less transparent sun screen can also be used here. Combinations are also possible. In addition, the web 3 can be made in the form of a polymer film or upholstery fabric. In addition, the curtain shown is suitable not only for closing window or doorways 1 in buildings, but also for combining, for example, with exposed windows in caravans, residential vehicles, etc.

The winding shaft 2 is surrounded by a torsion spring 4, which is only indicated. This torsion spring 4 is tensioned in the process of unwinding the web 3 from the winding shaft 2. Winding takes place automatically by unloading the tensioned torsion spring 4, as is well known in the “jump” curtain (see also GB-A 927567). In any case, the torsion spring 4 takes care that the web 3 unwound from the winding shaft 2 is again spontaneously wound onto the winding shaft 2, if the web 3 is not fixed.

This fixation is carried out in the framework of the invention with the help of rotary bolts 5, which are included in the curtain rails 6 that extend from the sides of the window or doorway 1. For this purpose the curtain rails 6 are made open in the direction of the web 3 and have a generally U-shaped cross-section. A tire 7 is adjacent to the web 3 at the end, moving in the corresponding curtain guide 6 passing along the slot 8. For this purpose, the two curtain guides 6 extend respectively from both sides of the window or doorway 1 and are made in the form of U-shaped curtain rail 6.

The brushes not shown on both sides of the knees of the respective curtain guide 6 provide their insect-proof closure of the blade 3 in the curtain guide 6 with their respective bristles directed towards the blade 3, as described in principle in the already-cited application DE 19639478 A1.

At both ends of the tire 7 there is a corresponding pivoting bolt 5, shown in enlarged view in figure 4. Both pivot bolts 5 are diametrically opposite to each other with respect to the actuating element 16 located in the middle of the tire 7. The corresponding pivot bolt 5 provides stepless fixation of the curtain and, thereby, the blade 3 when moving it to the locked position. The pivot bolt 5 usually occupies this functional position, since due to the spring 9, the pivot bolt 5 is in the lock position indicated by the solid line in FIG. 5. In contrast, the release position of the pivot bolt 5 is indicated in FIG. 5 by a dot-dash line.

This is implemented in more detail so that the pivot bolt 5 is equipped with an anchor 10 and, in addition, contains a wing 11. A tire 7 moves with the help of the anchor 10 or its end plate 19 in the corresponding slot 8 of the curtain rail 6. The wing 11 is in as part of an example of a two-shouldered lamb 11, which is placed in the landing element 12 at the end of the actuating pin 13.

The actuating pin 13 is provided with guide pins 14 arranged diametrically to its axis of rotation D, which fit into the guide 15 of the anchor 10. This guide 15 extends in a helical fashion, so that the actuating pin 13, the guiding pins 14, the landing element 12, and finally the two-armed wing 11 make a combined rotational linear motion against the force of the spring 9 when a linear or combined rotational-linear force is applied in the direction of the axis of rotation D, as indicated by the double arrow L. in FIG. 4

As part of this combined rotational-linear motion against the force of the spring 9, the two-shouldered lamb 11 is moved from its normally occupied locking position (indicated by a solid line in FIG. 5) to the released position (indicated by a dash-dot line in FIG. 5). The forces indicated in FIG. 4 by the double arrow 4 are created by the actuating element 16, which is connected through the connecting device 17 to the actuating pin 13.

The actuating element 16 in the framework of the exemplary embodiment is an actuating engine, which, in accordance with the arrow shown in FIG. 2, is lowered with the finger down in the winding direction W and which from this position, with the support of the spring, spontaneously latches up again. In principle, upward triggering and latching down are also possible — both movements also in the winding direction W. In any case, this actuation of the actuating element 16 by hand helps to ensure that both rotary bolts 5, or both two-shouldered lamb 11, respectively located at the end of the tire 7, are moved from their normally occupied lock position to the release position.

In the locked position, the corresponding two-shouldered lamb 11 abuts with its ends 18, respectively, from the inside, to the knees of the U-shaped curtain rail 6, as shown in Fig. 5. In this case, the two-shouldered lamb 11 forms with an slot 8 or a longitudinal extension of the corresponding curtain guide 6 an acute angle α fluctuating between 40 and 90 °. Of course, a two-arm lamb 11 and an end plate 19 of the anchor 10 also occupy a comparable angle α.

When a finger is pressed on the actuating element 16, the force exerted by this to the connecting device 17 causes it to pull the actuating pin 13 shown in Fig. 4 with rotation to the right. This traction movement is converted by the guide pins 14 and the corresponding guide 15 in the anchor 10 into a combined rotational-linear movement, after which the corresponding two-shouldered lamb 11 occupies the release position indicated in FIG. 5 by a dash-dot line.

It is directly seen that the tire 7 and, thereby, the web 3 flexibly move then in the corresponding curtain guide 6 in the longitudinal direction, namely, until the actuating element 16 is pressed with a finger. As soon as, however, the actuator 16 is released, the connecting device 17 is unloaded and the corresponding pivoting bolts 5 return to the locked position. Canvas 3 is fixed.

The actuator 16 converts the linear motion associated with the loaded in the winding direction W to a linear motion perpendicular to it in the longitudinal length of the tire 7. This vertical direction is indicated in FIG. 1 by the double arrow L. For this purpose, the actuator 16 is provided in FIG. 3 with two corresponding data curtain rails 6 swinging levers 20. These swinging levers 20 rotate each around axis 21. Along the swinging levers 20 in the direction of winding W moves U-shaped covering the swinging lever 2 0 guide pin, when the actuator 16 is pressed with a finger in this direction. This leads to the fact that the swing arm 20 is deflected, namely in the longitudinal direction L of the tire 7. This is indicated by the corresponding arrows in figure 3. It is in this longitudinal direction L that the actuating pin 13 is loaded to move the pivot bolt 5, so that the flow of force from the actuating element 16 through the connecting device 17 to the actuating pin 13 and, finally, to the two-arm lamb 11 becomes clear.

In conclusion, from figure 2 it is seen that the actuating element 16, in General, is placed in the locking housing 22, which is fixed in the tire 7 or put on it. Technologically, it is especially simple. Of the two holes 23 on both sides of this locking body 22, a connecting device 17 protrudes, which provides the described loading of the actuating pin 13 by the actuating element 16. The connecting device 17 is in this example a cable.

Claims (9)

1. A curtain, in particular a mosquito curtain, for closing a window or doorway, comprising a sheet unwound from a winding shaft and a winding onto it, for example a mosquito net, as well as curtain rails located on the sides of the window or doorway and open towards the canvas, characterized in that for stepless fixing of the web, at least one rotary bolt included in the corresponding curtain guide is provided, which can be translated against the spring force from position b okirovki in the release position. 2. The curtain according to claim 1, characterized in that the pivot bolt comprises an anchor and a wing rotating relative to it, in particular a two-shoulder wing. 3. The curtain according to claim 1 or 2, characterized in that the lamb in the releasing position of the pivot bolt extends in the same direction with the slot of the curtain guide and, in the locked position, forms a predetermined angle (α) with the slot. 4. The curtain according to any one of claims 1 to 3, characterized in that when moving from the lock position to the position of releasing the lamb, it makes a combined rotational-linear movement against the force of the spring. 5. A curtain according to any one of claims 1 to 4, characterized in that the lamb is attached to an actuating pin, which, in turn, is loaded with a connecting device in connection with the actuating element. 6. Curtain according to any one of claims 1 to 5, characterized in that for the implementation of the locking and releasing provisions, a single actuating element is provided, which is fixed mainly to a tire located at the end of the web, which, in addition, carries a rotary bolt. 7. The curtain according to any one of claims 1 to 6, characterized in that the actuating element is made in the form of an actuating engine or traction member and, for translating the pivot bolt to various positions, performs mainly linear motion in the direction (W) of winding the web. 8. Curtain according to any one of claims 1 to 7, characterized in that the actuating element loads at least two swinging levers corresponding to these curtain guides, which transform the linear movement of the actuating element in the direction (W) of winding the web into a combined rotary traction the movement is perpendicular to it, with the help of which the rotary bolt against the spring force is transferred from its blocking position to the release position. 9. The curtain according to any one of claims 1 to 8, characterized in that on both sides of the tire two rotary bolts are attached to it.

Images