EP3048213B1 - Awning with tissue counter-movement system - Google Patents

Description

The invention relates to an awning with a rotatably mounted in a housing roller tube, from which a cloth is unwound, the front end is attached to an extension profile, wherein the Ausfahrprofil is guided on guide rails in the extension direction movable, wherein the Ausfahrprofil means of a Gegenzugmittels in the extension direction means a tensile force is applied and wherein the fabric shaft has at least one portion for winding the Gegenzugmittels, which is wound up during extension of the Ausfahrprofils and unwound when retracting the Ausfahrprofils, the Gegenzugmittel is coupled to the Ausfahrprofil and stretched by means of at least one Zugkraftspeichers.

Such awnings are known. Such awnings, in which the extension profile is guided extendable on guide rails in the extension direction, are used in particular as conservatory awnings respectively interior shading in conservatories.

In order to extend the extension profile and to ensure optimum cloth level for winter awnings and interior shading, it is necessary to apply a tensile force in the extension direction on the extension profile. From the EP 0 595 959 B1 is a clamping device for a flexible, flat cover means is known in which a clamping system for tensioning the awning fabric is arranged in the Ausfahrprofil.

From the DE 20 2013 103 538 U1 is an awning with a Gegenzugsystem known in which the winding portion for the Gegenzugmittel has laterally delimiting cheeks, wherein at least one of the cheeks has an inside projecting bead. As a result, a winding of several rope sections to be avoided one above the other, since such a winding of several cable sections one above the other results in that the live rope slips down and thereby produces an undesirable noise.

The disadvantage here is that even by such a bead, at least a brief winding of several cable sections one above the other and a subsequent slide down the live rope is not completely excluded.

From the DE 93 09 350 U1 an awning for shading conservatories is known in which a Gegenzugmittel is provided in the form of a belt. The belt is guided over several pulleys and twisted several times by 90 °, since the orientation of the winding of the belt on the roller tube is perpendicular to the direction of deflection of the belt at the front end and the clamping system.

From the EP 1 273 734 is an awning with a Gegenzugsystem known in which straps are provided, which are elastically formed in sections, to provide a construction without clamping elements and yet to ensure that the awning fabric has a tight fit regardless of the extended position.

From the EP 1 304 423 A2 is also known as a return awning, this document describes an object having all the features of the preamble of claim 1.

A disadvantage of the known awnings, which have a belt as traction means is that the belt is subject to the necessary twisting a high wear and does not reach a satisfactory service life, but quickly has unsightly fraying and in the worst case can even break.

The object of the invention is therefore to further develop an awning of the type mentioned above, so that the mentioned disadvantages are overcome and the awning has a high reliability and durability.

This object is achieved by an awning according to claim 1. Advantageous developments of the invention are specified in the subclaims.

Particularly advantageous in the awning with a rotatably mounted in a housing roller tube from which a cloth is unwound, the front end is attached to an extension profile, the Ausfahrprofil is guided on guide rails in the extension direction movable, wherein the Ausfahrprofil by means of a Gegenzugmittels in the extension direction means a tensile force is applied and wherein the fabric shaft has at least one portion for winding the Gegenzugmittels, which is wound up during deployment of the Ausfahrprofils and unwound when retracting the Ausfahrprofils, wherein the Gegenzugmittel is coupled to the Ausfahrprofil and tensioned by means of a tension accumulator, it is that the Gegenzugmittel is formed by a hose, in particular by a woven tube.

Such as a hose, in particular as a woven tube formed Gegenzugmittel combines the extremely positive for the operation of a rope on the one hand and on the other hand a belt. In that region of the counter-agent, which is guided under tension on deflection rollers engages the Ausfahrprofil, the under tension standing hose with a circular cross-section, which can be performed easily and without high wear on pulleys. That portion of the counteracting means, which is wound up on the corresponding sections of the cloth shaft, flatly deposits the counter-tensioning means formed by a hose, so that the counter-tensioning means can easily be wound up in several layers one above the other.

In particular, for this purpose, one or both sides laterally next to the cloth on the fabric shaft in each case a winding area for the Gegenzugmittel be provided. In particular, this take-up area can be designed in such a way that its clear width corresponds to half the circumference of the hose or is greater than half the circumference of the hose. In particular, each winding region can have lateral cheeks, between which the tube is laid flat when being wound up in several layers one above the other.

Particularly preferably, the counter-tensioning agent is formed by a woven tube. A woven hose combines a high tensile strength in the longitudinal direction of the Gegenzugmittels with a high flexibility of the woven tube perpendicular to the longitudinal direction, so that such a woven tube can be easily laid flat and wound up, while at the same time such a woven tube under train in the longitudinal direction with a represents circular cross-section.

A first portion of the Gegenzugmittels, which is wound up during the extension of the awning, thus laying down in several layers on each other flat, without the risk of lateral slipping, as would be the case when winding a round rope. The flat laying of the tube in each double position allows a rolling up of the tube over several layers, without the risk of lateral slipping exists. That portion of the counteracting means, which is not wound up and under pulling force during extension and retraction, is in the longitudinal direction of the counteracting means, arises as a result of the acting tensile force with a circular cross section. As a result, a guide and deflection of this portion of the Gegenzugmittels over pulleys is easily possible.

The operation of this Gegenzugmittels formed by the hose is understandable when one thinks of a wound fire hose. Rolled up forms such a tube in several layers over one another wound package whose width corresponds to half the circumference of the hose. However, the unwound region of the tube is such that this region has a circular cross-section. Likewise, the invention behaves by a hose, preferably a woven tube formed Gegenzugmittel the awning. In this case, a woven tube shows particularly advantageous properties due to its strength in the longitudinal direction and its flexibility perpendicular to the longitudinal direction. The term longitudinal direction refers to the Gegenzugmittel as such.

The extension direction indicates the direction from the fabric shaft to the front end of the guide rails. With the front end of the guide rails is meant that end of the guide rails, which has the maximum distance in the extension direction of the housing of the awning. The housing of the awning is accordingly arranged at the rear end of the guide rails and can be inserted in particular via corresponding locking pins in the guide rails to allow easy mounting of housing and guide rails to each other. The terms rear and front end of the guide rails are accordingly used regardless of the type of awning and the intended installation of the awning, that is both in horizontal or at a slight inclination extending conservatory awnings or interior shading.

Accordingly, the roller tube has at least one section for winding up the counter-tensioning means, in particular in the form of a belt pulley. Preferably, the cloth shaft on both sides laterally next to the winding area for the cloth each have a section for winding the Gegenzugmittels, in particular in the form of a Gurtscheibe.

Characterized in that that region of the Gegenzugmittels, which is wound on extension of the Ausfahrprofils in the extension direction on the fabric shaft, laid flat in several layers and wound up, the construction of multiple layers of a rope connected to the problem of unwanted noise is reliably avoided. Instead, that area which is wound up during the extension of the extension profile, is formed by a flat double-layer wound hose, which can be easily wound in several layers one above the other. It does also no problem that the Gegenzugmittel is under a tensile stress.

In particular, a cylindrical roller can be arranged in front of the belt pulley, over which the counter-tensioning means is guided, in order to bring about the double-layered flat lying on one another of the hose before winding on the belt pulley.

The section (s) of the cloth shaft for winding up the belt is / are preferably designed as a belt pulley. Preferably, the portion of the cloth shaft for winding the belt on side cheeks whose distance is equal to or greater than half the circumference of the hose. As a result, a lateral slippage of the wound in several layers one above the other Gegenzugmittels is prevented. Furthermore, the flat wound tube is passed through these lateral cheeks and can be wound in several layers one above the other.

A second portion of the counteracting means, which is unwound from the take-up area on the cloth shaft, raises under tension with a circular cross-section. Due to the flexibility of the material can of course under the gravitational force and other influences set a deviating from an ideal circular cross-section, thereby the desired property of being able to perform the Gegenzugmittel over pulleys without the Gegenzugmittel is thereby kinked, is not affected.

This second portion of the counteracting means, which is unwound from the roller tube, is preferably guided over one or more deflection rollers and or one or more loose rollers in or on the guide rails and / or the Ausfahrprofil. Because this second portion of the Gegenzugmittels sets up with a circular cross section, a guide of the Gegenzugmittels on the required pulleys is easily possible, whereas when using a belt in this second section difficulties in the deflection of the Gegenzugmittels and a would result in increased wear. These disadvantages are reliably avoided by virtue of the fact that the counter-tensioning means is formed by a hose.

Accordingly, it is a particular advantage of the invention that the region of the counter-agent that is wound up during extension of the extension profile can be laid flat on top of each other in several layers, whereas a second, unwound portion of the counter-tensioning agent, which is guided over deflection rollers, by itself automatically under a corresponding tensile force with a circular cross section. Therefore, in contrast to, for example, a belt, the counter-tensioning means designed as a hose can easily be guided over deflection rollers in any desired manner, without a problem occurring, for example, due to buckling of the counter-tensioning means in the longitudinal direction or twisting of a belt or the like, as may be the case with deflection rollers could happen led strap. In particular, by the use of a hose as a counter-tensioning means, which is guided over deflection rollers, the wear is avoided, as it inevitably occurs in guided over pulleys belts.

In a preferred embodiment, the counter-tensioning means is formed completely or in sections by an elastic fabric and forms a traction accumulator. In this case, the tension accumulator, which serves to tension the counter-tensioning means to apply a corresponding tensile force in the extension direction on the Ausfahrprofil and to produce an optimal cloth state of the awning, in particular in the extended state, formed by an elastic Gegenzugmittel itself.

Such elasticity can be produced by the use of elastic fibers for the production of the fabric, that is, by the selection of an elastic material. Alternatively or cumulatively, such an elasticity can be generated by the application of a corresponding weaving method for producing a fabric tube, which in itself is elastic in the longitudinal direction of the woven tube.

In a sectional or complete formation of the Gegenzugmittels of elastic material, the Gegenzugmittel simultaneously serves as distance compensation, since the decrease in size of the wound on the winding shaft cloth during unwinding and the increase in circumference of the wound during deployment Gegenzugmittels are opposite proportional, but it may happen that possibly occurring Deviations must be compensated.

Particularly preferably, a second portion of the Gegenzugmittels, guided over at least one loose role, wherein the loose roller is kinematically coupled to the spring accumulator.

By such a kinematic coupling of a loose roll, over which the Gegenzugmittel is guided, with the spring accumulator, the Gegenzugmittel is biased accordingly, so that always the required tensile force is applied to the Gegenzugmittel resulting in the desired optimum tension of the cloth, so that the cloth the awning also has an optimum cloth level even when the extension profile is extended and does not sag.

The arrangement of a spring accumulator as traction accumulator can thus be carried out alternatively to an elastic Gegenzugmittel, in particular partially elastic Gegenzugmittel, or cumulatively to an elastic Gegenzugmittel, in particular partially elastic Gegenzugmittel.

The tension accumulator, which serves to apply a corresponding tensile force in the extension direction on the Ausfahrprofil, can thus be formed by the Gegenzugmittel itself and / or by at least one spring accumulator. By means of this tension accumulator can be compensated in particular the explained distance differences during extension and retraction of the awning between the winding cloth and the unwinding Gegenzugmittel when retracting or vice versa the unwinding cloth and the winding Gegenzugmittel during extension of the awning. Of the Distance compensation can thus be realized by means of an elastic Gegenzugmittels and / or by means of a spring accumulator.

Particularly preferably, the awning on a symmetrical structure with two Gegenzugmitteln. In particular, the counter-tensioning means can be coupled to one another on the extension profile, in particular both counter-tensioning means can be made in one piece. This means that on both sides of the cloth on the cloth shaft in each case a Gurtscheibe particular side cheeks having arranged for winding that portion of the Gegenzugmittels on each side of the cloth, which is wound up during extension of the awning. Both Gegenzugmittel on both sides of the cloth further have a second portion which is guided over pulleys in or on the guide rails and / or the Ausfahrprofil, wherein particularly preferably both Gegenzugmittel are designed in one piece, that they merge within the Ausfahrprofils, one another. Preferably, at least one spring store is arranged within the extension profile, by means of which the counter-tensioning means are tensioned. It can also be arranged for each of the two sides of the Gegenzugmittels each have a spring accumulator.

Particularly preferably, the counter-tensioning means are tensioned by a spring accumulator acting directly or indirectly on the counter-tensioning means. The spring accumulator may in particular be one or more tension springs and / or compression spring (s).

Alternatively or cumulatively, the counter-tensioning means are tensioned by a spring mechanism acting directly or indirectly on a loose roller over which the respective counter-tensioning means is guided. In such a spring memory may in particular be one or more tension springs and / or compression spring / s.

In a particularly preferred embodiment corresponding Gegenzugmittel are arranged in a symmetrical structure of the awning on both sides of the cloth, which within the Ausfahrprofils merge into each other and are thus coupled to each other, each guided by the side via pulleys in the Ausfahrprofil in Gegenzugmittel is guided via a respective loose role on which the spring acts, so that due to the coupling of the two Gegenzugmittel and the arrangement of the spring accumulator on both Side of the cloth, the same tensile force is applied to the Ausfahrprofil, so that there is a symmetrical tensile force and an optimal cloth level.

Several sections of the counteracting agent may be formed by different materials and / or types of fabric or by identical materials and / or types of fabric, in particular a homogeneous fabric.

With a homogeneous tissue, in particular, a tissue is referred to, which has the same materials throughout and was woven throughout using the same weaving technique.

By combining different materials, the respective desired material properties can be combined. However, it is also possible to use counter-tensioning means in which the counter-tensioning means is formed continuously by the same material. In particular, portions of the counteracting agent may be formed by a fabric. In this case, a plurality of sections of the counteracting means may in particular be formed in one piece by a fabric. This can be generated by the fact that when weaving the Gegenzugmittels a change between different weaving techniques is carried out, which can produce sections of different elasticities of the fabric even with a continuous use of the same material.

When the awning is designed such that it has a symmetrical construction, a counter-tensioning means can be produced in such a way that a homogeneous fabric hose is used throughout. By producing such a fabric running in one piece, the required counter-tensioning means can thus be produced in one piece, which then, on both sides of the awning cloth, the respectively arranged counter-tensioning means comprise each having a portion which is wound flat on the cloth shaft on extension of the Ausfahrprofils on the Gurtscheiben on both sides of the cloth, and each having a second portion in the form of a circle having a cross-section hose, which is guided over pulleys and loose rollers , where attack on the loose roles of / the spring memory.

One or more portions of the counteracting agent may be formed by a thermoplastic. In particular, the plurality of sections may be coupled together by welding.

Alternatively or cumulatively, the two sections of the counter-tensioning means can be coupled to one another by means of a coupling part, in particular by means of a pressing part.

Further, the two portions of the counteracting means may be coupled together by means of a belt buckle or by interlocking loops. For this purpose, at the respective ends of individual sections of the Gegenzugmittels loops may be formed which are fixed by pressing parts. By one loop is passed through the other loop before pressing the pressed part, a permanent connection of the two portions of the Gegenzugmittels can be formed.

In a preferred embodiment, the distances of the coiling retracting means and the unwrapping wipe are opposite proportional and vice versa due to the increase in circumference in the winding of the retraction means and the circumferential decrease in the unwinding of the wipe.

Particularly preferably, the hose forming the counter-tensioning means has a material thickness which corresponds to half the material thickness of the cloth and / or half the material thickness of cloth spaces arranged on the cloth. By selecting such a material thickness of the hose has this through the respective double tray of the flat wound Hose the same material thickness, as the cloth or as the cloth in the region of longitudinal seams or as a cloth arranged on the cloth pockets.

The term longitudinal seam designates a seam running parallel to the extension direction in the awning fabric, which occurs when the awning fabric is sewn together from several sections. Furthermore, the cloth may have at its outer edges repackaged and / or glued cloth chambers.

Fig. 1

eine perspektivische Ansicht einer Markise mit Gegenzugmittel;

Fig. 2

das Gegenzugmittel der Markise gemäß Fig. 1 als solches.

An embodiment of the invention is illustrated in the figures and will be explained below. Show it:

Fig. 1

a perspective view of an awning with Gegenzugmittel;

Fig. 2

the Gegenzugmittel the awning according to Fig. 1 as such.

Fig. 1 shows a perspective view of an awning with a fabric shaft 1. From the rotatably mounted fabric shaft 1, the cloth 3 is unwound, the front edge of which in the illustration in accordance with FIG. 1 extended extension profile 2 is attached. The extension profile 2 is movably guided on guide rails in the extension direction. For better clarity are in the schematic representation according to Fig. 1 neither the housing in which the roller shaft 1 is rotatably mounted, nor the guide rails on which the extension profile 2 is movably guided, shown. In the illustration according to Fig. 1 the extension profile 2 is extended, so that the cloth 3 is stretched between the extension profile 2 and the fabric shaft 1.

On both sides of the cloth shaft 1 belt pulleys 4, 5 are arranged, on which the counter-tension means 6, 6 'is wound on both sides of the cloth shaft 1 during extension of the extension profile 2. For the purposes of the invention, the terms counteracting means and traction means are used interchangeably.

In the front area of the awning, the counter-tensioning means 6 is guided over deflecting rollers 10, 10 ', 11, 11' and guided further into the extension profile 2. there two stationary pulleys 10, 10 'arranged at the front ends of the guide rails, not shown, while on the Ausfahrprofil 2 two together with the Ausfahrprofil 2 traversing pulleys 11, 11' are arranged, via which the Gegenzugmittel 6, 6 'on both sides in the Ausfahrprofil 2 are guided into it.

The counteracting means 6, 6 'is formed as an integral traction means such that it extends along both sides of the cloth 3 and is guided into the extension profile 2 via deflecting rollers 11, 11'. Within the extension profile 2, the traction means 6, 6 'guided over two pulleys 7, 7', which are arranged stationary in relation to the Ausfahrprofil 2. Further, the traction means 6 is guided over two loose rollers 8, 8 ', on which act on both sides symmetrically arranged spring accumulator 9, 9' and thereby exert a tensile force on the counter tension means 6.

Fig. 2 shows the counter-tension means 6, 6 'of the awning according to Fig. 1 in a schematic representation without the deflection rollers over which the opponent means 6, 6 'is guided and deflected. Overall, the Gegenzugmittel 6, 6 'integrally formed and thus engages on both sides of in Fig. 2 Not shown awning fabric 3 to the also in Fig. 2 not shown 2 extension profile. Because of that in Fig. 1 recognizable front pulleys 10, 10 'are fixedly arranged on the guide rails, not shown, thus a tensile force can be exerted in the extension direction on the Ausfahrprofil, resulting in an optimal cloth level of the awning fabric 3 results.

As in Fig. 2 can be seen, the traction means 6 during extension of the extension profile in the extended position according to Fig. 1 wound on the belt pulleys 4, 5. Accordingly, in the schematic illustration according to Fig. 2 shown in the wound-up first portion 61 of the traction means 6 as a flat-laid hose. That second section 62 of the traction means 6, which is guided over the deflection rollers, however, forms a hose with a circular cross section as a result of the tensile forces acting on it.

Accordingly, the first section 61 of the traction means 6 is wound on the pulley shaft 1 in the form of layers lying flat on one another on the belt pulley 5. This is followed by a second section 62, which forms with a circular cross section under train. This second region 62 of the traction means 6 is as in Fig. 2 recognizable on the stationary pulleys 10, 10 'and further guided over the pulleys 11, 11' on the extension profile 2 in the extension profile 2.

The transition region A is in the schematic representation according to Fig. 2 exaggerated. In fact, it is not a sudden transition from a circular cross-section of the traction means in the region 62 to a flat package in the wound-up region 61, but a smooth transition.

In order to bring about optimum winding and the formation of a flat strip of the width corresponding to half the circumference of the tube, one or more cylindrical rollers can also be arranged in the transition region A, over which the traction means is guided. Such cylindrical rollers are not shown in the embodiment.

When extending the extension profile 2, a winding of the traction means 6, 6 'takes place on the corresponding sections 4, 5 on the roller tube. As a result, due to the kinematic coupling, a tensile force in the extension direction is brought about on the extension profile 2, whereby the extension profile 2 is moved in the extension direction and the unwinding of the awning fabric 3 takes place from the fabric shaft 1.

The coupling of the Gegenzugmittels 6, 6 'with the Ausfahrprofil 2 takes place as in Fig. 1 represented by the fact that the counter-tension means 6, 6 'on the stationary rollers 10, 10' at the front end of the guide rails, not shown, and then via the arranged on the Ausfahrprofil 2 guide rollers 11, 11 'in the Ausfahrprofil are guided, so that thereby a tensile force can be applied to the extension profile by the counter-tension means 6, 6 'in the extension direction. The Gegenzugmittel 6, 6 'itself is again below the Preload the spring accumulator 9, 9 ', so that always a corresponding tensile force in the extension is applied to the Ausfahrprofil 2 and an optimal cloth fabric of the awning fabric 3 is brought about.

The traction means 6, 6 'is formed in the illustrated embodiment by a textile fabric tube. It has been found that such a textile fabric hose with a diameter of 5 mm to 6 mm and a wall thickness of 1 mm has sufficient tensile strength to ensure optimum cloth level and a long service life.

Claims (11)

1. Awning with a fabric shaft (1) which is rotatably mounted in a housing and from which a piece of fabric (3) can be unrolled, the front end of which piece of fabric is attached to an extending profile (2), wherein the extending profile (2) is movably guided along guide rails in the extension direction, wherein the extending profile (2) is loaded with a tensile force by means of tensioning means (6, 6') in the extension direction, and wherein the fabric shaft (1) comprises at least one section (4, 5) for winding up the tensioning means (6, 6') which are wound up when the extending profile (2) is extended and unrolled when the extending profile (2) is retracted, wherein the tensioning means (6, 6') are coupled to the extending profile (2) and loaded by means of at least one tensile force accumulator (9, 9'), characterized in that the tensioning means (6, 6') are formed by a tube, in particular by a woven tube.
2. Awning according to claim 1, characterized in that the tensioning means formed by the tube form a circular cross-section under tension.
3. Awning according to claim 1 or 2, characterized in that the section (61) of the tensioning means (6, 6') that is wound up when the extending profile is extended is placed flat and in multiple layers on top of each other on a winding roller.
4. Awning according to any of the preceding claims, characterized in that a second section (62) of the tensioning means (6, 6') is guided via one or more pulleys (7, 7', 10, 10', 11, 11') and/or via one or more free rollers (8, 8') in or along the guide rails and/or the extending profile (2).
5. Awning according to any of the preceding claims, characterized in that the tensioning means (6, 6') are fully or partially formed by an elastic fabric and form a tensile force accumulator.
6. Awning according to any of the preceding claims, characterized in that a second section (62) of the tensioning means (6, 6') is guided via at least one free roller (8, 8'), wherein the free roller (8, 8') is kinematically coupled to a spring mechanism (9, 9').
7. Awning according to any of the preceding claims, characterized in that the awning has a symmetrical structure with two tensioning means (6, 6'), in particular that the tensioning means (6, 6') are coupled to each other on the extending profile (2), in particular that both tensioning means (6, 6') are formed by a tube in one piece.
8. Awning according to any of the preceding claims, characterized in that the one or more tensioning means (6, 6') are loaded by a spring mechanism (9, 9') acting on the one or more tensioning means (6, 6'), in particular by one or more tension springs and or compression springs.
9. Awning according to any of the preceding claims, characterized in that the one or more tensioning means (6, 6') are loaded by a spring mechanism (9, 9') acting on a free roller (8, 8') via which the respective tensioning means (6, 6') are guided, in particular by one or more tension springs and or compression springs.
10. Awning according to any of the preceding claims, characterized in that multiple sections (61, 62) of the tensioning means (6, 6') are formed of different materials and/or types of fabric or of identical materials and/or types of fabric, in particular homogeneous tissue.
11. Awning according to any of the preceding claims, characterized in that the tube forming the tensioning means (6, 6') has a material thickness that corresponds to half of the material thickness of the fabric (3) and/or half of the material thickness of fabric hems arranged on the fabric (3).

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