DE10243822C1 - Sunblind has lever mechanisms at either end of rail attached to front end of blind web attached to carrier tube mounted on building wall via lever fittings - Google Patents

Abstract

The sunblind (1) has a carrier tube (3) attached to a building wall (2) via spacers (4), with a bearing block (5) supported at either end of the carrier tube via a pivot mounting allowing rotation about the carrier tube longitudinal axis, a spring device biasing each bearing block in the direction of the building wall. The bearing blocks support a blind shaft (6) which can be rotated via a drive device, with a blind web (10) attached to the blind shaft at one end and attached to a rail (9) at the opposite end, a 2-armed lever mechanism extending between each end of the rail and a lever fitting (7) attached to the carrier tube.

Description

Awnings are known from the prior art, at which the winding shaft within a tubular housing is rotatably mounted. The housing is with a C-shaped wall neck tern attached to the wall, the tube in a circular arc shaped housing. On these wall brackets are below also attached arm joints on which the articulated arms are hinged on the wall. The articulated arms bear on them free ends of the drop rail, which is closed when ner or retracted awning directly at the outlet slits the housing and closes the housing.

This construction has proven itself very well on the market, is priced but in the middle price segment and is therefore significantly more expensive than the simple awnings with Support tube.  

There is a square on the wall of the support tube awnings tube with a square cross-section attached. At the ends of the support tube sit immovable bearing pieces by the Raise the support tube upwards. Is between the bearing pieces the fabric shaft rotatably mounted.

In addition, the two arm joints are on the support tube attached that hold the articulated arms. Over the cloth shaft at least one roof runs around the fabric shaft and there bales on top against weather influences from above to protect to some extent. If with this known Trag tubular awning the angle at which the extended awning fabric compared to the horizontal ver the awning as a whole must move around the axis of the support tubes in the wall-side holders. Only like that can be ensured that the awning track is complete dig can be wound onto the cloth shaft. Would that Articulated arms alone would be adjusted when retracting the awning can possibly raise the drop rail in one distance to the generated cloth bale and be exposed to external weather conditions.

But if the entire arrangement for the purpose of adjusting the Awning inclination must be pivoted away from the wall there is a permanent more or less large gap, the is particularly annoying when the awning is extended. In the Gap enters rainwater when the awning is used as rain protection is used.

Another known embodiment of an awning, uses a closed box, in which retracted NEN state the articulated arms are folded. Within the  The awning box also contains the armrests on the wall joints. These are in order to create an awning pitch move. They will be in the extended position locked. The constructive and the parts effort at the This type of arm joint is very high.

All constructions suffer from another man gel. When the wind is under the extended awning catches, creates a so-called balloon through which the fall rail is pulled up to the building facade. Thereby be because of constantly wrist joints that are correspondingly high be burdened by constant movement over the course of Knock out time.

Based on this, it is an object of the invention to to create new support tube awning, in which the by balloon The shortening of the awning track does not occur the articulated arms must be included as far as the balloon education does not exceed a predetermined level.

This task is according to the invention with the awning solved the features of claim 1.

With the new awning, the bearing pieces over which the Cloth shaft is rotatably connected to the support tube on which Support tube not rigidly attached. Rather, you can look around rotate the longitudinal axis of the support tube at least to a limited extent. When the wind reaches under the extended awning and that Awning cloth inflates to the balloon, it can open length change can be included by the two Bearing pieces that carry the cloth shaft a bit in Swivel towards the drop rail. This will make one Movement of the articulated arms in their arm joints avoided.  

A movement in the arm joint takes place only when the Way is consumed, over which the bearing pieces swung can be. As a rule, one can Movement of the arm joints can be prevented.

The arm joints are particularly sensitive because because when extended they are very kinked be burdened because they carry half the weight of the Awning cover including the drop rail. Furthermore ste hen the arm joints under tension, because their job occasionally consists in stretching the awning fabric hold. So the load conditions on the arm joints particularly unfavorable, especially since the axis length is not particularly good which is big. Constant movements in these wrists lead to premature wear, which is why it is cheap is, these movements in terms of amplitude and number to reduce.

Simple constructive relationships arise when the joint that the respective bearing piece with the support tube connects, is a simple hinge that only one has only one degree of freedom. The hinge pin can be a separate hinge pin that is rigid, for example is connected to the support tube, or a gate sionsstab, the bearing in question in the direction of pre-tensioned the drop rail. In this way, a separate bearing pin clamped what the construction much simplified.

Instead of a torsion bar can also be used for prestressing a clock spring can be used on the support tube sits and one end on the support tube and the other end on the bearing piece is set. Premature weathering of the cloth bale  in the outer layers can be prevented if additional Lich a kind of awning box is provided. That Marki In the simplest case, a box can have a domed roof be attached to the bearing pieces.

The preloaded mobility of the bearings has au also the main advantage that when the Awning the fabric shaft automatically parallel to the drop rail aligns even if the wall-side hinges that hold the articulated arms are not adjusted exactly the same are. The accuracy requirements with which the Win cell position of the two articulated arms is set to reduced this way.

In addition, the new construction of a pivoting cloth shaft particularly well to the Mar to be able to use kise as rain protection for shops NEN. Due to the preload, the bearing pieces pivot Fabric shaft together with the existing roof close to the House facade. This avoids the gap at the well-known supporting tube awnings between the house facade and the bale of cloth gapes. It can therefore be easily at the Awning construction uses a water drain device over the water running down the facade derive the awning box. This can be done on the facade a guide element must also be attached so that a kind of labyrinth together with the awning buttons seal results.

For the rest, further developments of the invention are against stood by subclaims. Such notes should also combinations of colors are considered to be claimed on the no express embodiment is directed.

In the drawing is an embodiment of the Ge the subject of the invention. Show it:

Fig. 1 shows an embodiment of the awning according to the invention in a perspective view;

Fig. 2 shows a detail of the awning of FIG. 1,

Fig. 3 shows an arm bearing for an awning arm in a perspective and partially sectioned and

Fig. 4-6 the awning according to Fig. 1 in different functional positions and

Fig. 7 shows another embodiment for generating the restoring torque for the bearing piece.

Fig. 1 shows a perspective view of an awning 1 designed as a tubular support awning in front of a broken-off building facade.

The awning includes a support tube 3 designed as a square tube, which is attached to the facade via two wall brackets 4 .

At the ends of the support tube 3 sit pivotally gela gert two bearing pieces 5 , between which a cloth shaft 6 is rotatably mounted axially parallel to the support tube 3 .

The awning 1 also includes two arm bearings 7 which can be adjusted in inclination and which serve to accommodate two articulated arms 8 on the wall. A drop rail 9 is pivotally attached to the ends of the articulated arms 8 remote from the winding shaft 6 . An awning fabric 10 is stretched between the drop rail 9 and the fabric shaft 6 .

The wall brackets 4 consist of a plate 11 to be attached to the wall with through holes 12 , through fastening screws. Two plate-shaped legs 13 project from the plate 11 at right angles, which delimit a mouth 14 between them, the cross section of which is adapted to the cross section of the support tube 3 .

In addition, at the free ends of the legs 13 are aligned through holes 15 through which screws pass to move the two legs 13 while clamping the support tube 3 against each other. The two bearing pieces 5 are mirror symmetrical to each other, which is why it is sufficient to explain only one of these in more detail. The description applies mutatis mutandis to the other bearing piece 5 .

The bearing piece 5 which can be seen in FIG. 2 has a lower, solid, cylindrical base body 16 which contains a continuous square opening 17 which is coaxial with the support tube 3 .

From the lower cylindrical base body 16, two struts 18 and 19 project convergingly towards one another and carry a further cylindrical section 21 which contains a bearing bore 22 for a bearing pin (not shown further) of the winding shaft 6 . The bearing bore 22 is axially parallel to the square opening 17 and axially parallel to the axis of the support tube 3 .

From the upper cylindrical body 21 a plurality of struts 23 go out like spokes to connect a circularly curved support flange 24 in one piece with the cylindrical body 21 . The support flange extends over a circular arc of slightly more than 180 ° and mün det in the lower area in the strut 18 , while it ends in the upper area at a spoke 23 .

Abutment devices for an illustrated cure gear mechanism 25 are designed according to the prior art and are therefore to be explained.

Each of the two bearing pieces 5 is connected to the support tube 3 via a hinge-like joint 25 . The hinge 25 includes a cuboid or cube-shaped insert piece 27 which is inserted into the support tube 3 from the front end. With the help of not shown securing devices, the insert 36 is fixed in the axial direction. Through the insert 27 , a coaxial bore 28 passes through, in which a collar bushing is rotatably mounted. The collar bush has a cylindrical shaft 31 and a collar 32 . The cylindrical portion 31 is freely rotatable with little play in the bore 28 while the collar 32 is axially from the outside on the neighboring te flat end face of the insert.

A passage 33 with a square cross section extends coaxially through the collar bushing 29 . The cross section of the passage 33 corresponds to the cross section of the opening 27 in the bearing piece 5 .

The restoring force for the bearing piece 5 generates a torsion bar 35 with a square cross section. The Tor sionsstab 35 is coaxially fixed with its inner end in the support tube 3 , for example with the help of an insert as shown at 36, which is attached to the torsion bar 35 , for example by welding. By selecting the effective length of the torsion bar 35 , the size of the restoring torque can be determined. For this purpose, the insert 36 can be attached to the torsion bar 35 at the appropriate point. The insert 35 fits into the opening of the support tube 3 and is clamped in the support tube by a suitable adjusting screw 37 . The outer end of the square torsion bar 35 leads through the opening 33 in the collar bushing 29 and is finally inserted in the square opening 17 of the end piece 16 . Here, too, the torsion bar 35 is axially secured by a suitable clamping screw. The anti-rotation in the circumferential direction is due to the adaptation of the profile of the opening 17 to the cross section of the torsion bar 35th

In order to set the winding shaft 6 with the bale attached to it in rotation, a drive device 38 is provided, which in the exemplary embodiment shown is formed by a gear 38 driven by a crank, not shown.

The structure of the arm bearing 7 is shown in FIG. 4. The arm bearing 7 has two brackets 41 and 42 which are slipped over the support tube and which, with their free ends, protrude above the support tube 3 so that clamping screws can be inserted through corresponding openings which are not shown in the figures and can be fastened by means of square nuts 43 . In this way, the two brackets 41 and 42 sit frictionally in the longitudinal direction of the support tube 3 , while they are held in a positive manner in the radial direction. Their backs 44 point to the drop rail 9 and they contain mutually cursing bores 45 , of which because of the broken position of the bracket 41 the cylindrical bore present there cannot be seen. A cylinder bolt 46 with a threaded hole 47 for receiving an adjusting screw 48 is inserted in the mutually aligned bores 45 .

An approximately L-shaped arm support 49 is arranged between the two brackets 41 and 42 , which are mounted at a distance from one another. The arm support 49 has a lower forked leg 51 through which a bearing pin 52 passes at the free end. The bearing pin 52 is received in corresponding bores of the lower leg of the bracket 41 and the lower arm of the bracket 42 , which cannot be seen in the figures. In this way, the arm carrier 49 is pivotable about an axis which runs parallel to the longitudinal axis of the support tube 3 and below the underside thereof. Below the cylinder bolt 46 , the arm support 49 contains a transverse bore 53 in which a cylinder bolt 54 is inserted. The cylinder pin 54 contains a wide re through bore 55 with an internal winch, which has an opposite direction of rotation, such as the threaded bore 47 . The grub screw 48 is accordingly equipped with a white thread in the opposite direction of rotation and is seated in both the threaded bore 55 . By turning the threaded bolt 48 , the distance between the at the cylinder pins 46 and 54 can either be reduced or increased, whereby the arm holder 59 is pivoted accordingly about the bearing bolt 52 .

On its side opposite the drop rail 8 , the arm support 59 contains a rectangular forked mouth 56 which is delimited by a lower and an upper leg 57 and 58 . In this mouth 56 , the wall-side part 58 of the articulated arm 8 in question can be pivoted with respect to an essentially vertical axis.

The two bearing pieces 5 not only carry the cloth shaft 6 on which, as is customary with awnings, the awning sheet 10 is fastened with one edge, but also a kind of awning box or roof 61. The awning roof or the awning box 61 has a length over the length by going constant cross-section and is attached to the end of the circularly curved flange 64 . It extends forward to form a kind of front roof 61 with an upwardly curved edge, while an upwardly opening gutter 63 is formed on the back. The gutter 63 extends over the entire length of the awning box 61st

The new awning works as follows:
First of all, it is assumed that the awning according to FIG. 6 is in the extended state. In this state, the articulated arms 8 are largely stretched, as a result of which the drop rail 9 is at a corresponding distance from the fabric shaft 6 . The awning cover 10 extends between the drop rail 9 and the cover shaft 6 . The force with which the articulated arms 8 stretch or are held in the extended position is greater than the restoring moment that the two torsion bars 26 can exert on the associated bearing pieces 5 . The bearing pieces 5 therefore pivot about the axis of the torsion bars 35 in the direction of the facade 2 until their further movement is stopped by the rain gutter 63 abutting the facade 2 , the awning track 10 blocking a further pivoting movement or by others on the support tube 3 and the La gerstücke 5 provided stops limit the pivoting movement be.

In this position, regardless of the pivoting position of the bearing pieces 5, the inclination of the articulated arm 8 relative to the horizontal can be freely changed within the corresponding limits by turning the adjusting screw 48 .

If, in the extended position, the wind gets caught under the awning sheet 10 and the awning sheet 10 inflates upwards, ie creates a balloon, the effective length becomes shorter. This change in length causes ent against the action of the restoring moments, the two torsion bars 35, the bearing pieces 5 are tilted a corresponding distance in the direction of the drop rail 9 . The karme 8 gels can be left alone. As long as the ball formation does not exceed a predetermined dimension, they are not changed in the angular position between their arm parts. To compensate for the change in length due to the balloon formation, no relative movements in the articulated arms 8 between the associated arm parts are required in the new awning 1 .

If the awning is retracted and the two Ge articulated arms 8 are fully folded in, a further rotation of the fabric shaft 6 leads to the fact that this rail as a result of a further shortening of the awning web 10 between the case rail 9 and the fabric shaft 6 according to FIG. 5 in the direction the drop rail 9 is pulled up. For this purpose, the two bearing pieces 5 pivot against the action of the torsion bars 35 in the direction of the drop rail 9 . That is to say that the bearing piece visible in FIG. 5 performs a clockwise rotary movement with respect to FIG. 6. In the retracted state, regardless of the inclination setting of the two articulated arms 8, the bale of awning fabric 10 formed on the fabric shaft 6 always lies directly against the drop rail 9 . It is therefore sufficient the short projecting canopy 62 on the awning box 61 to protect the awning 10 over the entire free length up to the fall rail 9 ge from above against weather conditions.

Even if the carrier 49 of the two arm bearings 6 should not be set exactly the same, which can certainly occur due to Montageto leranzen, the cloth shaft 9 with the bale located thereon lies exactly on the drop rail 9 over its entire length. So that the above-mentioned protective effect is always guaranteed by the canopy-like jump of the awning box 81 .

The pivoting movement of the bearing pieces 5 and thus the relative movement of the fabric shaft 6 can not only be used to compensate for the balloon formation in the awning fabric 9 or to ensure that in the retracted condition the fabric shaft 6 was as close as possible next to the drop rail 9 lies. The pivotal movement can also be used to prevent that on the facade 2 from running rainwater in the gap between the awning box 61 and the facade 2 continues to run down. This measure is particularly important in the case of awnings which serve as rain protection or rain roof for goods presented outdoors in shops. For this purpose, a water drainage screen 64 is fastened to the facade above half of the gutter 63 , as shown in FIGS. 5 and 6. Water that runs down the facade 2 is led directly into the rain gutter 63 via the discharge screen 64 and its drip edge 65 . It can run out of the gutter to the side. Thus, it is prevented that the rain, which makes the house facade 2 further runs and between the facade 2 and the awning 1 to the bottom edge of the window 1 drips situated on the underneath of the awning.

In the embodiment described above, he followed the generation of bias for the bearing pieces 5 using the torsion bars 35th Fig. 8 shows an alternative embodiment. On the support tube 3 is a winding spring 65 , of which one end 66 is fixed in a bearing 67 on the support tube 3 . The clock spring 65 extends with its other angled end 68 in a corre sponding bore 69 of the lower cylindrical portion 16 of the bearing piece 5th The pivoting of the bearing piece 5 takes place on a journal 71 , which projects coaxially from the end of the support tube 3 . On this journal 71 , the bearing piece 5 sits with a corresponding round drilling tion 72nd

The slipping of the journal 71 is achieved with the help of an externally applied washer 73 and a hedging nut 74 .

A limitation of the pivoting movement of the bearing pieces 5 with respect to the support tube 3 can also be realized in that, according to FIGS. 2 and 3, a threaded bore 75 , which is axially parallel to the bore 28 , is made in the insert piece 27 at the side. In this bore sits a grub screw 76 , the outwardly projecting end of which projects into an arcuate elongated slot 77 . The elongated hole 77 is located in the cylindrical base body 16 at the corresponding point.

With a support tube awning, the Wi ckelwelle provided with the support tube two bearing pieces. The both bearing pieces are connected at the end to the support tube the and each bearing piece is in relation to the support tube swiveling.

Claims (12)

1st awning ( 1 )
with a support tube ( 3 ) which is to be connected to a building structure ( 2 ) via wall brackets ( 4 ),
with one bearing piece ( 5 ) at each end of the support tube ( 3 ), the respective bearing piece ( 5 ) being connected to the support tube ( 3 ) via a joint ( 26 ) such that the bearing piece ( 5 ) is opposite the support tube ( 3 ) is pivotable with respect to its longitudinal axis,
with a spring device ( 35 , 65 ), by means of which the bearing pieces ( 5 ) are prestressed in one direction towards the building structure ( 2 ),
with a cloth shaft ( 6 ) which is rotatably mounted between the two bearing pieces ( 5 ) and runs axially parallel to the support tube ( 3 ),
, and that is with an awning cloth (10), which is at one end attached to the cloth shaft (6) on the cloth shaft (6) to be wound,
with a drive device ( 38 ) in order to set the cloth shaft ( 6 ) either in revolutions or to fix it,
with at least two articulated arms ( 8 ),
with at least two arm bearing devices ( 7 ) which are fastened to the support tube ( 3 ) and via which the gels karme ( 8 ) are connected to the support tube ( 3 ), and
with a drop rail ( 9 ) which is connected to the articulated arms ( 8 ) and to which the other end of the awning cover ( 10 ) is fastened, 2. Awning according to claim 1, characterized in that the support tube ( 3 ) is a profile tube which has a constant cross-section over the length. 3. Awning according to claim 1, characterized in that the joint ( 26 ), which connects the bearing piece ( 5 ) to the support tube ( 3 ), is a hinge joint, with only a single degree of freedom, the hinge axis to the axis of the support tube ( 3 ) is coaxial. 4. Awning according to claim 1, characterized in that the hinge has a pin ( 31 , 35 , 71 ) and a pin receptacle ( 16 , 29 , 72 ) which are coaxially and rotatably inserted into one another, one part with the support tube ( 3 ) and the other part is connected to the bearing piece ( 5 ). 5. Awning according to claim 1, characterized in that the spring device ( 35 , 65 ) per bearing piece ( 5 ) has a torsion bar ( 35 ) which is fixed at one end with the bearing piece ( 5 ) and at the other end in the support tube ( 3 ). 6. Awning according to claim 1, characterized in that the torsion bar ( 35 ) forms the hinge axis. 7. Awning according to claim 1, characterized in that the spring device ( 35 , 65 ) per bearing piece ( 5 ) has a coil spring ( 65 ), one leg ( 66 ) with the support tube ( 3 ) and the other leg ( 68 ) interacts with the bearing piece ( 5 ). 8. Awning according to claim 1, characterized in that at least one joint ( 26 ) is assigned a stop which limits the rotational stroke of the respective bearing piece ( 5 ) relative to the support tube ( 3 ). 9. Awning according to claim 1, characterized in that between the two bearing pieces ( 5 ) an awning box ( 61 ) extends, which protects the fabric shaft ( 6 ) and the bales of awning web ( 10 ) located thereon, at least from above, against the weather , 10. Awning according to claim 1, characterized in that the awning box ( 61 ) extends into an area between the fabric shaft ( 6 ) and the building structure ( 2 ). 11. Awning according to claim 10, characterized in that on the awning box ( 61 ) a water drain device ( 63 ) is provided which extends over the length of the awning box ( 61 ) to receive rainwater running off a building facade ( 2 ). 12. Awning according to claim 1, characterized in that the arm joint ( 7 ) with a hinge ( 41 , 42 , 52 ) is seen ver, the hinge axis ( 52 ) is aligned parallel to the support tube ( 3 ), such that the Angle that the extended awning ( 10 ) with the horizontal closes, is adjustable.