DE19807916C2 - Awning with adjustable reel - Google Patents

Description

The invention relates to an awning with a cloth, the one on the one hand on a cloth roll and on the other hand due to a failure rod is attached, with a tension element, by means of which one Tensile force acts on the cloth in its unwinding direction, and with a winding element, on the bottom of which the tension element is wound, the tension element on the winding element is wrapped when the cloth is unwound from the cloth roll and vice versa, the winding element being an adjustable Has bottom diameter.

The invention further relates to a winding roll for use in an awning.

An awning of the type mentioned at the outset is known from EP 0 208 103 A1 known.

If the fabric is unwound with such an awning, at the same time the tension element is opened by a winding element wraps. If the cloth is unwound by turning the cloth roll, the tension element is simultaneously unwound from the winding element.  

In the awning mentioned at the beginning, there is the winding element from a truncated cone firmly connected to the cloth shaft towards the winding core, the winding surface being designed that when winding the tension element around the winding core, the Win of the tension element towards the smaller truncated cone surface wander, and the slope of the generatrix of the truncated cone gene winding surface is chosen such that when turning the Cloth shaft and thus the circumference of the two outer winding cores the outermost layer of cloth to the extent of the queue corresponds to the next winding on each winding core.

With such awnings the problem arises that when Ab wrap the awning cover the diameter of the cover shaft gradually decreases while the outer diameter of the simultaneously on usually cylindrical winding cores winding traction elements increases continuously. A complete one The rotation of the cloth shaft also has one complete rotation of the winding cores. As a result of the different through knife of the turns of the cloth wave on the one hand and the turns on the other hand, there is a path difference on the winding cores between tension element and fabric, which either sag of the cloth or leads to large cloth tensions. By the out design with conical winding surfaces should this path difference can be compensated for by the fact that the individual turns next to each other and not wound up on each other. To do this corresponding grooves cut in on the outside of the cone.

This configuration has the considerable disadvantage that, in particular especially for awnings with large drop lengths, corresponding to bul angular, conical winding cores with a very long side have to be. But it is an effort in awning construction,  if possible, the entire width of the area to be shaded to cover the cloth, for example balconies or the like, which is no longer the case with very long, lateral winding cores is possible d. H. only certain central areas can be be shadowed.

In one embodiment it is described that the conical up winding area of the winding cores by four truncated cones Partial shells is formed, the surface of each Man is limited by its four lateral edges one arc each of the two circular truncated cone bases surfaces as well as by two dividing lines to the neighboring jacket shell-representing surface lines. The inclination of at least one Coat shell along its coat line is changeable. Through the Adjustment of the inclination can depend on the thickness of the awning cover be adjusted.

The inclination is adjusted using set screws, whereby ver each of the truncated cone shells using three setscrews is adjustable.

This construction is technically extremely complex and is over to handle constantly, because the inclination al four shells can be adjusted accordingly to ensure a safe Entry of the tension element into the grooves on the outside of the Ensure surface area. Only then will the goal be achieved at all reached, the path compensation by the increasing or decreasing To achieve cone diameter. The over the numerous Stell screw-supported four jacket shells transferred over this the total radial pulling force, which with awnings large downtimes is significant.  

Therefore, another technology has come through in this area set, namely the tension element is on winding rolls with zy lindrian core wound in such a way that a Loop on the underlying one of the previously opened wrapped tension element formed loop is wound.

Such an awning is known from DE 43 06 498 C2.

The tension element can be in the form of ropes, metal strips or tex tilbänder available.

The coverage described in this document is ge indicates that the diameter of the bottom of the reel roll on which the first turn of the tension element to the system comes at least as large as the diameter of the full on wound cloth roll.

The aim of this measure is that the tension in the cloth at awning is as low as possible, and fully rolled out state is highest. The tension line increases ar with the processing of the cloth.

Such a course of the fabric tension is therefore sought to ensure that the fabric of the awning even with large Failure lengths is always sufficiently tensioned. This should ver be prevented that the cloth sagging bulbous, which is little is talking and in the rain as a pool for the rain water acts. At the same time, however, the cloth must not be over be tensioned, because in such a case the warp threads of the Tu ches can be overstretched and there is a risk that the cloth is stretched out.  

It has now been shown that with relatively low failure lengths the awning, so up to about 2 m, you don't have a rising one Course of the cloth tension required. Rather, in this Be rich, d. H. if only a comparatively small, extended one Cloth surface should actually be stretched, another Ausle cloth tension can be selected. In particular you can for example in favor of a greater increase in the fabric tension large drop lengths initially decrease the fabric tension accept small outages.

Especially in those constructions where the barrel difference between fabric and tension element when winding or unwinding done by a spring-loaded displacement, e.g. B. DE 36 10 635 A1, DE 38 06 621 C1 or EP 0 208 103 A1, the chip is enough the spring to create a basic tension of the cloth that prevent sagging in the case of drop lengths of up to approx. 2 m different.

It is important that the awning cover on the one hand is always so far excited that it is in the extended zu did not sag, and on the other hand that the maximum on tensile stress that occurs for the awnings used permissible maximum values. This must be the case with the Design of the assembly of each individual awning is taken into account become.

Because with increasing drop lengths, a stronger chipboard per se voltage is required, the design of the awning in particular depending on the maximum failure lengths and the resulting maximum fabric tension.  

With different lengths of the cloth then the correspondingly more or fewer windings on cloth or train element can be taken up by the cloth or winding roll.

The object of the present invention is therefore an awning to create the kind mentioned that simple and therefore ko be adapted to the maximum drop lengths in a cost-effective manner can to a respective favorable fabric tension characteristics receive.

The task is carried out by an awning of the type mentioned solved in that the winding element is designed as a winding roll det, which has a minimum bottom diameter, and that additional components are provided on the winding roll can be applied, and with which the bottom diameter of the Winding roll can be enlarged, depending on the ma ximal drop lengths of the cloth.

This measure has the advantage that under awnings different drop lengths always one and the same winding roll can be used and that the adaptation to the individual Failure lengths due to the additional components provided looks. In this way, a single type of winding can be made roll for awnings with different drop lengths produ be decorated. Since the winding rolls are usually an integral part of cloth rolls, identical modules can now be made from and roll of fabric for a variety of different awnings Dropouts are used. Adaptation to longer ones The length of the fabric is ensured by the additional components for ver enlargement of the bottom diameter. This adjustment leads to  most advantageously to comparable cloth tension characteristics with different cloth lengths, so that a and the same cloth material for different cloth lengths uni is universally applicable. Would the winding roll diameter at increasing the cloth roll would remain the same, the running difference between cloth and tension element always larger, so that each their cloth tension characteristics are available, which refer to Be can cause damage.

This is now excluded by the invention in that the bottom diameter can be enlarged and the changed Cloth roll diameter can be adjusted without the complete winding reel replaced and another one must be set.

The winding roll with a minimal bottom diameter is for one be agreed minimum length of cloth, e.g. 2 m, can be used. Are then longer cloth lengths are provided, the minimum Bottom diameter gradually increased, i.e. the increasing Adjusted cloth roll diameter with completely wound cloth.  

In a preferred embodiment of the invention, the wic roll two side windows, between which the tension element is wound up, with the two side windows facing each other opposite aligned openings are provided, wherein first openings at a first radial distance from the rotary with telpunkt the winding roll are arranged and with further public at a greater radial distance from the lathe telpunkt the winding roll are arranged, and that for enlargement the bottom diameter of the winding roller bolt into the ent speaking openings can be inserted.

This measure has the advantage that the original Manufacturing the winding roll vorese the appropriate openings can be hen, in which then according to the failure length of the Cloth the bolts are inserted, around which the cable ment is wound up. This process is simple and can be done at the assembly can be carried out on site, namely by the Bol zen are inserted into the corresponding openings and then the tension element is not wound around the bottom of the winding roll is, but is wrapped around the inserted bolts whose outer circumferential envelope then the new adapted diam represent larger soil.  

In a further embodiment of the invention, the openings are with increasing radial distance from the center of rotation offset to each other.

This arrangement has the advantage that the stability of the winding roll is not affected by the holes.

In a further embodiment of the invention, openings are several times with the same radial distance arranges.

This measure has the advantage that extensive by numerous arranged openings, for example six or more, through the bolts a floor is created that is always "rounder" and the Concentric movements of the awning is increasingly adapted.

In a further embodiment of the invention, the winding roll up a basic body and two side windows, between which the tension element is wound, and for enlargement the bottom diameter of the winding roll is at least a magnification ßerungsring provided between the two side windows is mountable.

This measure has the advantage that a through the ring body each round bottom with a larger diameter, which the previously mentioned concentricity is beneficial.

In a further embodiment of the invention there is a Ver magnification ring from at least two circular ring sections.  

This measure has the advantage that the ring sections laterally on the central body, i.e. on the original floor the winding roll, for example, can be clipped on.

This is easy to do on site Installation measures that are carried out very easily and quickly can.

In a further embodiment of the invention is for assembly a magnification ring at least one of the side windows from Removable body.

This measure has the advantage that only for enlargement briefly removed a side window, the enlargement ring on the body must be pushed on and then the Side window can be reattached. This process too is easy to carry out on site at the construction site.

In a further embodiment of the invention, the floor diameter of the winding roll selected so that this min at least 10% smaller than the diameter of the cloth roll completely wrapped cloth.

This measure has the advantage that it is a special one cloth-friendly tension characteristic is achieved, each also with the different diameter sizes of the winding roller le is obtained.

With this characteristic, the first settlement turns more cloth unwound than tension element, because the diameter of the cloth roll is larger than the diameter of the  Winding roll together with the wound tension element. This takes first of all the fabric tension, which, as mentioned at the beginning, is harmless with small drop lengths up to approx. 2 m. First then when the diameter of the cloth roll plus is wound on it cloth becomes smaller than the diameter of the winding roll plus the tension element wound on it, becomes less per revolution ger cloth unwound as a tension element. From this Zu then the fabric tension rises, which is the case with a longer off case lengths is advantageous because then a higher fabric tension be is necessary to a bulbous sag due to the Eigenge to completely prevent the weight of the unwound cloth.

In a further embodiment of the invention, as is per se known, winding roll and cloth roll arranged coaxially to each other net, and the tension element is at the outermost via a deflection roller Dropout redirected.

This measure has the advantage that a particularly com compact awning in the area of the driven fabric roll is available. The corresponding manipulations for change of the diameter of the winding roll can be pre-selected during assembly be taken and then, for example, the awning box in which the Cloth roll is included, closed accordingly on all sides become.

The invention also relates to a winding roll as such, since the Invention also in the case of an independently tradable winding roll is realized. The same applies to modular components from Wickel roll and cloth roll, which, for example, with a spring mechanism rela tiv are mutually displaceable and as a compact module unit are trained.  

It is understood that the above and the next Features to be explained not only in the respective given combination, but also in other combinations or can be used alone, without the scope of the to leave the present invention.

The invention is based on some selected Aus management examples in connection with the enclosed drawing described and explained in more detail. Show it:

Fig. 1 is a schematic side view of an awning,

Fig. 2 is a side view of a winding roll,

Fig. 3 is a section along the line III-III in Fig. 2,

Fig. 4 is a partial side view of an awning with a small cloth length,

Fig. 5 is a Fig. 4 similar view of an awning cloth with great length,

Fig. 6 is a diagram in which the fabric tension TS is plotted against the cloth length, the cloth showing voltage characteristics,

Fig. 7 is a section of FIG. 3 comparable presen- tation of another embodiment of a Wic kelrolle with magnification ring applied to it

Fig. 8 is a plan view of another embodiment of such an enlargement ring, which is composed of two Hal bring.

In Fig. 1 an awning is designated in its entirety with the reference number 10 .

The awning 10 has a housing 12 which is mounted on a building 14 .

In the housing 12 , a cloth roll 16 is accommodated, on which an en de of a cloth 18 is fastened and onto which the cloth 18 is wound up or unwound. The opposite end, the so-called dropout of the cloth 18 is connected to a failure rod 20 .

The drop rod 20 is connected to a tension element 22 in the form of a textured band, which is guided to a deflection roller 24 at the outermost dropout, deflected there and returned to a winding roller 26 which is seated on a lateral journal 17 of the cloth roller 16 .

The axis of rotation 39 of cloth roll 16 and winding roll 26 coincide here.

On the other side of the cloth roll 16 opposite the representation of FIG. 1, a winding roll is again arranged in mirror image; Accordingly, a second train element is arranged on the other side of the cloth 18 .

The deflection roller 24 is mounted in a guide rail, not shown here.

If the cloth roll 16 in the embodiment shown in FIG. 1 is rotated clockwise, for example by a motor or by a crank mechanism, the pulling element 22 is wound onto the winding roll 26 and pulls the extension rod 20 from the cloth roll 16 ; the cloth 18 is unwound.

In the reverse direction of rotation, the cloth 18 is wound on the cloth roll 16 and the tension element 22 from the winding roll 26 unwound.

Since the diameter of the cloth roll 16, including wound thereon cloth 18 and the diameter of the winding roller 26 along with it, change continuously on coiled tension member 22, the cloth roll can be, for example, 16 of unequal length per revolution. The cloth 18 wound as simultaneously roll on the tension member 22 onto the winding 26 is wound up. To compensate for the voltage differences associated therewith, for example, cloth roll 16 and winding roll 26 can be rotated relative to one another against the force of a spring, as is known per se.

In FIGS. 2 and 3, the detailed configuration of a first embodiment of a reel is shown in detail 26th

The winding roll 26 consists of a central round body 29 by 29 , which is limited on both sides by larger diameter side windows 30 . The peripheral surface of the base body 29 forms a bottom 28 of the winding roll 26 .

A central, continuous opening, not designated here, serves to mount the winding roll 26 on the lateral axis pin 17 of the cloth roll 16 .

In the side windows 30 through, mutually cursing openings 31 , 32 , 33 and 34 are provided.

The radial distance between the openings 31 , 32 , 33 and 34 to the axis of rotation 39 is continuously increasing.

The openings 31 , 32 , 33 and 34 are circumferentially offset from one another.

A total of six openings 31 arranged circumferentially offset from one another by 60 ° are provided; this applies equally to openings 32 , 33 and 34 , so that six groups of openings 31 , 32 , 33 and 34 are present.

The openings 31 , 32 , 33 and 34 are provided so that 39 bolts 40 are pushed through a series of openings with the same radial distance from the axis of rotation.

In Fig. 2, six bolts 40 are inserted into the openings 34 .

This serves to change the diameter of the bottom of the winding roll 26 , which originally has a diameter 36 , into a larger diameter, namely the diameter 38 , as is indicated in FIG. 3. This means that the tension element 22 is no longer placed around the base 28 , but rather is wound around the six bolts 40 inserted into the openings 31 , 32 , 33 and 34 , as a result of which a new base with a hexagonal contour is created.

From the side view of Fig. 2 it can be seen that the series of openings 31 is provided for cloth lengths of approximately 2 m, the series 32 for cloth lengths of 3 m, the series 33 for cloth lengths of 4.5 m and the series 34 for cloth lengths of 6 m can be fitted with bolts 40 .

That is, depending on the length of the fabric, the bolts 40 are then inserted into the corresponding series of holes.

A practical example is shown in FIGS. 4 and 5.

In Fig. 4, the tension element 22 is placed around the original floor 28 ge.

The diameter 36 of the winding roll 26 or of the base 28 is in a certain size ratio to the diameter 42 of the cloth roll 16 with the cloth 18 fully wound.

The ratio of diameter 42 to diameter 36 is approximately 1.1-1.2. This achieves a fabric tension characteristic as described below in FIG. 6.

The proportions are not true to scale but from presented for illustrative purposes.

In Fig. 5 a variant is shown in which the cloth 18 has a much larger drop lengths.

The pins 40 are now inserted into the series of holes 33 and the tension element 22 is wound around the outside of the six bolts 40 .

The diameter of the newly created "bottom" of the winding roll is designated 37 and is larger in comparison to the original bottom 28 (see FIG. 2).

Since the cloth 18 is also longer in this case, namely 4.5 m, the diameter 43 of the cloth roll 16 together with the wound cloth is correspondingly larger.

The ratio between the diameters 43 and 37 remains approximately the same, ie approximately 1.1-1.2.

This also results in a comparable fabric tension characteristics when you consider the fabric tension and fabric lengths or compares the failure route.

In Fig. 6 a number of such cloth tension characteristics are now graphically represented. These curves are based on the following relationships.

From Fig. 6 it can be seen that each time the cloth tension decreases (up to about 1.5 m drop lengths) and then increases continuously. The basic tension G is reached again after a drop length of 2 m. All fabric tension characteristics are comparable.

In Fig. 7 a further embodiment of a Wickelrol 44 is shown le.

The winding roller 44 has a base body 46 , the order of which represents a bottom 48 . A side window 50 is fixedly connected to the base body 46 ; the other side window 52 is detachably connected by screws 54 .

If the diameter of the bottom 48 is now to be increased, the side window 52 can be removed, a enlargement ring 46 can be pushed on and then the side window 52 can be screwed on again. This creates a new bottom, the outer diameter of which corresponds to the outer diameter of the enlargement ring 56 .

In Fig. 8, a further variant of a magnifying ring 60 is shown, which is composed of two half rings 62 and 64 which can be connected to one another via a clip catch 66 .

In this case, the winding roller 44 does not need to be dismantled, but the half rings 62 and 64 can be slid directly onto the original base body of a winding roller and clipped together, thereby increasing the diameter of the body.

Claims (12)

1. Awning with a cloth ( 18 ), which is fastened on the one hand to a cloth roll ( 16 ) and on the other hand to a drop bar ( 20 ), with a tension element ( 22 ), by means of which a tensile force on the cloth ( 18 ) in its unwinding direction acts, and is wound onto the winding element with a winding element, on whose bottom (28, 48) the tension element (22) can be wound, wherein the train element (22) when it is unwound the cloth (18) from the cloth roller (16) and vice versa, and wherein the winding member has an adjustable bottom diameter (36, 37, 38), characterized in that the winding element (26, 44) is designed as a winding roller (26, 44) having a minimum bottom diameter (36) , And that additional components ( 40 , 56 , 60 ) are provided, which can be applied to the winding roller ( 26 , 44 ), and with which the bottom diameter of the winding roller ( 26 , 44 ) can be enlarged, depending on the maximum extent length of the cloth ( 18 ). 2. Awning according to claim 1, characterized in that the winding roller ( 26 ) has two side windows ( 30 ), between which the tension element ( 22 ) is wound, that the two side windows ( 30 ) with mutually opposite aligned openings ( 31 , 32nd , 33 , 34 ), first openings ( 31 ) being arranged at a first radial distance from the center of rotation ( 39 ) of the winding roller ( 26 ) and further openings ( 32 , 33 , 34 ) at a respective greater radial distance from the center of rotation ( 39 ) of the winding roller ( 26 ) are arranged, and that to enlarge the bottom diameter of the winding roller ( 26 ), bolts ( 40 ) can be inserted into the openings ( 31 , 32 , 33 , 34 ). 3. Awning according to claim 2, characterized in that the openings ( 31 , 32 , 33 , 34 ) are offset circumferentially from one another with increasing radial distance from the center of rotation ( 39 ). 4. Awning according to claim 2 or 3, characterized in that the openings ( 31 , 32 , 33 , 34 ) are circumferentially arranged several times with the same radia lem distance. 5. Awning according to claim 1, characterized in that the winding roller ( 44 ) has a base body ( 46 ) and two side discs ( 50 , 52 ), between which the tension element ( 22 ) is wound, and that to enlarge the bottom diameter Winding roll ( 44 ) at least one enlargement ring ( 46 , 60 ) is provided, which can be mounted between the two side windows ( 50 , 52 ) coaxially to the base body ( 46 ). 6. Awning according to claim 5, characterized in that the enlarging ring ( 60 ) consists of at least two circular ring sections ( 62 , 64 ). 7. Awning according to claim 5, characterized in that for mounting the enlarging ring ( 56 ) at least one of the side windows ( 52 ) from the base body ( 46 ) is removable. 8. Awning according to one of claims 1 to 7, characterized in that the bottom diameter of the winding roll ( 26 , 44 ) is selected so that it is at least 10% smaller than the diameter of the cloth roll ( 16 ) with the cloth completely wound up ( 18 ). 9. Awning according to one of claims 1 to 8, characterized in that the winding roller ( 26 , 44 ) and the cloth roller ( 16 ) are arranged coaxially to one another and that a deflection roller ( 24 ) is provided on the outer dropout via which the tension element ( 22 ) its traction on the cloth ( 14 ) carries over. 10. winding roll for use in an awning according to one of claims 1 to 9, characterized in that the winding roll ( 26 , 44 ) has a minimum bottom diameter ( 36 ), and that additional components ( 40 , 56 , 60 ) see easily are, which can be applied to the winding roller ( 26 , 44 ), and with which the bottom diameter of the winding roller ( 46 , 44 ) can be enlarged, depending on the maximum length of the sheet ( 18 ). 11. winding roll according to claim 11, characterized in that they have the characterizing features of claims 2 to 7 has.   12. winding reel according to claim 10 or 11, characterized in that it is connected as a module component with a core of a cloth roll ( 16 ), the core being rotatable relative to the winding reel against the force of a spring about its common longitudinal axis.