EP2058455A2 - Awning with articulated arms - Google Patents

Abstract

The jointed-arm awning (10) has a winding shaft for a cloth hanging (14), where a failure profile (16) is provided at the free end of the winding shaft. A blocking device is provided with a roll-bar which extends over the distance of central joints (26) of an outer side of a hinged bracket (20) in the extended position. The central joints lock mutually together in the blocking device.

Description

The present invention is concerned with an articulated arm awning with a winding shaft for a Tuchbehang, at the free end of a front rail is provided, between the front rail and a support bracket at least two articulated arms are each arranged with a center joint, which support the front rail, wherein between the front rail and a support bracket at least two articulated arms, each having a central joint are arranged, which support the front rail, the central hinges are blocked in the extended position of the blind against folding by means of a blocking device.

Articulated arm awnings without lockable middle joints are widely used, but reach their limits when long extension lengths, usually over 4m are required. In addition, there is a certain vulnerability to wind and rain in the extended state, with weatherproof versions then usually have shorter extension lengths must have to build up the necessary strong streamlining the Tuchbehangs and let the leverage forces are not too large.

In the areas where a sunscreen is to be used as weather protection, for example, the gastronomy, so-called pergola awnings are often used, in which the front rail and possibly other support profiles are guided in lateral guide rails. These allow extension lengths of more than 4m and can easily withstand wind and weather. However, a problem with this pergola awning is that the support frame with the guide rails remains visible even when retracted and requires a high installation effort. In addition requires the establishment of such pergola awnings an approval process, because the overall appearance of pedestrian zones, for example, is adversely affected by the permanently erected guide rail scaffold.

From the DE 91 08 602 U1 an articulated arm awning of the type mentioned is known.

This solution offers the advantage that, due to the stiffened center hinges in the extended position after blocking, the front profile can no longer bounce back under the action of wind. However, it has been shown that by the immediate locking of the joints, even at high loads no satisfactory support results, especially since the joints must transmit under wind action correspondingly higher loads and be overstressed.

The 92 08 343 describes a solution in which the Tuchbehang is arranged on a winding shaft with a return spring, while the electric actuator is provided in the region of the central joints of the articulated arms. Although in this solution, the joints stiffened depending on the nature of the drive in the extended positions, however, there is no improvement in terms of bulging of Tuchbehangs under wind, because of the trained as a spring shaft winding shaft, as already normal gusts pull forces on the Tuchbehang cause the restoring force exceed the spring wave.

From the DE 20 2005 006 037 Finally, an articulated arm awning is known, in which the usually provided in the articulated arms, elastically acting clamping elements are replaced by a stretching device between the joints, which builds up the spring forces in the direction of stretching of the joints.

Also, this solution has the usual Gelenkarmmarkisen adhering disadvantage that under wind action, the spring forces of the stretching device can be overcome, the folding arms fold back and can flip over the cloth.

From the DE 20 2004 009 75 U1 as well as from the aforementioned DE 91 08 602 U1 Finally, it is known to provide support elements on the front rail of an awning to stabilize it.

The object of the present invention is to improve an articulated arm awning in that it has a better wind and weather resistance, without having to resort to stationary guide rails.

According to the invention the object is achieved by an articulated arm awning of the type mentioned above, which provides that the blocking device comprises a cross strut which extends at least over the distance of the center joints of the outermost articulated arms in the extended position and locked in the blocking position, the middle joints each other and that in an operating position the Tuchbehang by operating the winding shaft in the retraction in the blocking position of the blocking device or by pressing apart the center hinges when the winding shaft is blocked and then blocking the middle joints by means of an adjusting device in the cross profile is additionally streamlined.

According to the invention it is provided that the blocking device comprises a transverse strut, which extends at least over the distance of the central joints of the outermost articulated arms in the extended position. Such a cross brace or purlin provides additional reinforcement and can even form the blocking device or in addition to this available be. For example, connected to the middle joints, preferably with the center pivot pin, connected elements in a guide groove in the transverse strut or at least partially comprise the cross strut with a suitable guide cross-section.

The additional stiffening of the extended system is carried out by pressing the winding shaft in the Aufholrichtung, the Tuchbehang can be very tight so that it is less affected by wind less and less humidified when moistened, so that, for example, no water bags can be formed , Alternatively, an actuator in the cross brace can push the two middle joints apart, d. H. move into their extended position and thereby increase the fabric tension considerably. During this tensioning process, the winding shaft is blocked, z. B. by an engine brake, which provides after switching off the buoyancy for the blockade.

The adjusting device preferably has a self-locking drive, which blocks the center hinges against each other at a standstill. With such a drive, it is possible to stretch the Tuchbehang beyond the normal clamping force addition, the self-locking automatically prevents a return movement of the center hinges in their folded position. As a simple example of such a self-locking drive threaded spindles may be mentioned, which are arranged for example in the transverse strut and act on the middle joints. The threaded spindles can be rotated by means of an electric motor or by means of a hand crank to be used to tension the Tuchbehang accordingly and possibly the center hinges for recovering the blind again to move to a release position, in which by rotation of the winding shaft of the curtain can be obtained. It is therefore expedient to carry out the threaded spindles in such a way that after a certain distance they disengage from the middle joints and allow their free movement.

The blocking of the middle joints can be realized in various ways.

In a particularly simple embodiment of the invention, it is provided that, when the extended position is reached, the center hinges move into or over a dead center, so that an automatic collapse of the center hinges upon application of a drape suspension tension is prevented. The corresponding design of the middle joints can be realized simply by being able to move them into an extended position, in which the two arm halves are, for example, essentially aligned with one another. To retrieve the Tuchbehanges it is necessary in this variant to move the joints manually from the dead center, so that they can then be moved by winding the Tuchbehangs and corresponding retrieval of the drop profile back to its retracted position. With an adjusting device in the transverse strut, this can cause the movement from the dead center of the joints.

As an alternative, it can be provided that the middle joints can be blocked in the extended position by means of a mechanical locking device. Such a blocking device may, for example, automatically latching locking elements or manually operable locking elements, with which the two hinge halves can be locked to each other. Automatically spring-latching latching elements lock automatically when extending the Tuchbehangs and must before re-obtaining be unlocked while the manually operated locking elements for tensioning the Tuchbehangs locked and must be released to re-enter the hangings again. The purely manual operation can have the advantage that the user is more aware by the manual locking, that he must also cancel the catch before catching the blind, so that incorrect operation can be avoided.

A blockage of the central joints can also be achieved by inserting a transverse strut between the central hinges in the extended end position, which prevents the middle hinges from collapsing inwardly by mutual support.

Embodiments are possible in which the transverse strut is parallel to the frontal profile and / or the transverse strut is retractable and extendable, so that it does not have to be designed as a separate part.

Particularly preferred is an embodiment in which the transverse strut is arranged above the central hinges and forms a support for the Tuchbehang. Especially with large extension lengths, the additional support offers the possibility of largely avoiding bulging of the drapery curtain, which can not be avoided at very long extension lengths alone via the fabric tension, in particular during rainfall. Especially in articulated arm awnings, which are designed with low inclination of the extended Tuchbehangs, also improves the Abfließverhalten of precipitation, which occurs on the extended Tuchbehang. A still further, particularly preferred embodiment of the invention provides that at least one, preferably two bottom anchors are provided, by means of which the drop profile in the extended position can be fixed via support elements at least in the vertical direction.

Due to the increased extension lengths, which are made possible by the measures described above, the bending moments acting under wind action on the support brackets increase considerably. By anchoring the bottom-side support elements and the repeal of the vertical degree of freedom of the drop profile bending moments are virtually completely avoided, which can be derived via the support elements in the soil by the additional support in the field of failure profile of its weight. The ground anchoring should ideally not protrude, as this would be unacceptable for example in pedestrian areas. Expediently can be depressions, as they are used, for example, for attachment of street bollards, which should be closed in larger cross-sections, when the articulated arm awning is retracted and the supports are removed.

To avoid separate support elements, it may be advantageous to arrange these articulated on the front rail and / or extendable, so that they can be stowed on or in the front rail when the Gelenkarmwnise is not used. In a combination solution could for example be provided to insert the dropouts with rod ends in the profile to stow them while they can be pulled out so far for use until the support members are then hinged down and fixed in the bottom anchors.

A further expedient embodiment of the invention can provide that a Volantrollo is arranged on the front rail, which prevents, for example, in windy rainy weather, that people lying on the edge under the articulated arm awning get wet. The Volantrollo can have a transparent drapery, so that the view of the persons under the articulated arm awning is not restricted.

The Volantrollo preferably has a drop profile, which can be fixed to the anchorages in the extended end position. In this way, the curtain of Volantrollos is very well stabilized in the extended end position, so that it is also suitable for stronger wind loads.

Alternatively or additionally, it is also possible to determine the front section of the Volantrollos in the extended end position or in partially extended positions on the unfolded support elements, which may be formed, for example, as guide rails for the front section of the Volantrollos.

Fig. 1

eine Schrägansicht einer Gelenkarmmarkise

Fig. 2

eine Schrägansicht einer Gelenkarmmarkise mit Volantrollo;

Fig. 3

eine Detailansicht aus Fig. 2.

Fig. 4

eine Detailansicht eines Mittelgelenks;

Fig. 5

eine Detailansicht einer weiteren Ausführungsform eines Mittelgelenks

Fig. 6

eine Teilansicht einer eingefahrenen Gelenkarmmar- kise mit angeklappter Stützvorrichtung.

Hereinafter, reference will be made to embodiments of the invention with reference to the accompanying drawings. Show it:

Fig. 1

an oblique view of an articulated arm awning

Fig. 2

an oblique view of an articulated arm awning with Volantrollo;

Fig. 3

a detailed view Fig. 2 ,

Fig. 4

a detailed view of a middle joint;

Fig. 5

a detailed view of another embodiment of a middle joint

Fig. 6

a partial view of a retracted Gelenkarmmar- kise with hinged support device.

The oblique view according to Fig. 1 shows an articulated arm awning 10 in a partially extended position. In this case, a aufwickelbarer on a fabric shaft 12 Tuchbehang 14, at its free end a frontal rail 16 is provided, extended maximum. The canvas shaft 12 is supported on a support bracket 18, to which at least two articulated arms 20 are articulated. The articulated arms 20 consist of an upper arm half 22, a lower arm half 24 and a middle joint 26, via which they are hinged together. The lower arm half 24 is pivotally mounted in each case via a hinge on the front rail 16.

The middle joints have the peculiarity that they in the extended end position (see also Fig. 2 ) of the Tuchbehangs are blocked against re-folding, which can be achieved, for example, that the center joint is moved to a dead center, so acting on the front rail 16 forces in the retraction, which are applied by the Tuchbehang 14 by operating the winding shaft 12, Do not lead to a re-folding of the articulated arms. In this way, a particularly high tension of the drapery curtain 14 can be deliberately built up, so that this wind forces and weight forces, which are caused by impinging precipitation, can withstand low bulging.

The blockage of the central hinges 26 in the extended end position of Tuchbehangs 14 can also be achieved by separate blocking devices, for example by self-latching locking elements, which then have to be manually released before re-entering, or manual locking elements, which are manually operated before tensioning the Tuchbehangs 14 to block the middle joints.

As a special support measure for the Tuchbehang 14 not only in the extended end position is provided above this arranged transverse profile 32 in the region of the center joints 26, which supports the Tuchbehang 14 in particular in the extended end position centrally. Thus, a lower bulging of the curtain is to be feared especially at shallower angles of inclination under precipitation, which is stabilized even with acting wind forces of the curtain and, for example, performs less strong flapping movements. The transverse profile 32 can either be designed as a separate element which is attached to the middle joints 26 after reaching the extended end position, but it is also possible, for example, to connect the pivot pins of the central hinges 26 with support elements which are guided on a guide cross section of the transverse profile 32 are. The cross profile 32 is retrieved in such a case with the folding hinge arms 20 and moved in the vicinity of the winding shaft 12.

4 and 5 show simple examples of how the cross profile 32 and support members 50, 51 cooperate leader. The transverse profile 32 has a simple square or rectangular cross-section and may be formed for example as a simple square tube. In the embodiment according to Fig. 4 the upper half of the arm 22 and the lower arm half 24 are each articulated to the support element 50 via separate hinge pins. The support element itself has a fork-shaped guide 52, which is adapted to the cross section of the transverse profile 32, so that it is movably guided therein. The transverse profile 32 may remain in the guide receptacle 52 during the movement, but it is also possible for the transverse profile 32 to use only in the extended end position of the awning in the fork guide 52. To block the joints comes in this simple embodiment, a locking pin 54 is used, which can be inserted through a bore 56 in the fork wall and corresponding holes in the cross-section 32. After both middle joints have been fixed against the transverse profile 32 in this way, can be tightened by operating the drive motor of the awning in the retraction of the Tuchbehang in the desired manner.

In the embodiment according to Fig. 5 a similar guidance of the transverse profile 32 by a fork-shaped guide 53 of the support member 51 is provided. Unlike the in Fig. 4 In the embodiment shown, the two arm halves 22, 24 have a common hinge pin which is fixed to the underside of the support element 51. The locking of the center joints of the articulated arm awning takes place in the same manner as in the previously described embodiment in which a locking pin 54 is inserted into a bore 57 in the fork wall and provided in the transverse profile 32 bore.

It is also possible to form the support elements and the transverse profile 32 as a one-piece, rigid element, which also serves to block the middle joints 26 in the extended end position, that a rigid connection between the two middle joints is made.

In order to relieve the support bracket 18 of bending moments, which are generated by impinging on the very large blind surface wind, two support elements 28 are provided in the region of the dropout profile, which can be fixed in a bottom anchorage 30 such that the degree of freedom of the dropout profile 16 in the vertical direction will be annulled.

In principle, however, a single support element, which is preferably to be arranged centrally in the middle, is sufficient for canceling out the bending moments; to avoid tilting of the outflow profile, however, a solution with two support elements 28 which are arranged in the region of the ends of the outflow profile 16 is recommended.

The supports 28 may be provided, for example hingedly hinged to the front rail 16, so that they are displaced when retrieving the Tuchbehangs with the front rail in the direction of the support bracket 18. Also possible are embodiments in which the supports 28 are formed as separate elements, which can be stored, for example, in the interior of the dropout profile 16 when the awning 10 is in the retracted state. In the Fig. 2 and Fig. 3 shown supports 28 are telescopically equipped.

On the front rail 16 a Volantrollo 36 is mounted, which is extendable between the supports 28. The frontal profile 38 of the Volantrollos can be anchored, for example, in the region of the ground anchoring 30, it also being possible to guide it in the support elements 28, which are then designed as guide rails. At the in Fig. 3 Shown embodiment shown on the extendable element 40 of the support 28 a bow-like support provided on which the front rail 38 of the Volantrollos 36 can be suspended.

Fig. 6 shows the articulated arm awning 10 in the retracted end position with hinged supports 28. The Ausklappstellung the supports 28 with extended extendable element 40 is illustrated by the dashed line. Recognizable are in Fig. 6 in addition to the Tuchbehang 14, the canvas shaft 12 and the support bracket 18 and the front rail 16 with a hinge 60 for articulation of the support member 28 and a lock 62, which secures the folded support member in this position against unfolding.

Claims (15)

Articulated arm awning with a winding shaft (12) for a Tuchbehang (14), at the free end of a frontal profile (16) is provided, between the front rail (16) and a support bracket (18) at least two articulated arms (20) each having a middle joint ( 26) are arranged, which support the front profile (16), wherein the central hinges (26) in the extended position of the blind (14) are blocked against folding by means of a blocking device, characterized in that the blocking device comprises a cross-strut (32) extends at least over the distance of the center joints (26) of the outermost articulated arms (20) in the extended position and locked in the blocking position, the middle hinges (26) against each other and that in an operating position of the Tuchbehang (14) by operating the winding shaft (12) in the retraction direction in the blocking position of the blocking device or by pressing apart of the center hinges (26) blocked at r winding shaft and subsequent blocking of the central hinges (26) by means of an adjusting device in the transverse profile (32) is additionally tightened. Articulated arm awning according to claim 1, characterized in that the center hinges (26) when reaching the extended position to move into or over a dead center, so that the blocking position is reached automatically and folding when applying a Tuchbehangspannung is prevented. Articulated arm awning according to claim 1, characterized in that the central hinges (26) are blockable in the extended position by means of a mechanical locking device. Articulated arm awning according to claim 1, characterized in that the adjusting device has a self-locking drive, which blocks the central hinges against each other at a standstill. Articulated arm awning according to claim 4, characterized in that the self-locking drive via threaded spindles in the transverse strut (32) acts on the central hinges (26). Articulated arm awning according to one of the preceding claims, characterized in that the transverse strut (32) is parallel to the frontal profile (16). Articulated arm awning according to one of the preceding claims, characterized in that the transverse strut with the middle joints (26) is movable. Articulated arm awning according to one of the preceding claims, characterized in that the transverse strut (32) is removable. Articulated arm awning according to one of the preceding claims, characterized in that the transverse strut (32) above the central hinges (26) is arranged and forms a support for the Tuchbehang (14). Articulated arm awning according to one of the preceding claims, characterized in that at least one bottom anchoring (30) is provided by means of which the frontal profile (16) in the extended position via support members (26) is fixable at least in the vertical direction. Articulated arm awning according to claim 10, characterized in that the support elements (28) on the front rail (16) are arranged articulated and / or extendable. Articulated arm awning according to one of the preceding claims, characterized in that on the front rail (16) a Volantrollo (36) is arranged. Articulated arm awning according to claim 12, characterized in that the Volantrollo has a frontal profile (38) which can be fixed in the extended end position of the Volantrollos (36) on the bottom anchoring. Articulated arm awning according to claim 12, characterized in that the outgoing profile (38) of the Volantrollos (36) in the extended end position and / or in partially extended position on the unfolded support elements (26, 40) guided and / or can be fixed. Articulated arm awning according to claim 14, characterized in that the support elements are designed as guide rails for the Volantrollo.

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