EP3508664A1 - Articulated awning with push rod - Google Patents

Abstract

The invention relates to an articulated arm awning (01, 32), with a cloth (02, 33) which is fastened to the rear edge on a winding shaft (03, 36), wherein the cloth (02, 33) by rotational drive of the winding shaft (03 , 36) on the winding shaft (03, 36) is wound, and wherein at the front edge (04) of the cloth (02, 33) a drop rail (05, 34) is provided, and wherein the drop rail (05, 34) at least two articulated arms (06, 35) is mounted extendable, and wherein the articulated arms (06, 35) are articulated, and wherein the articulated arms (06, 35) with the drop rail (05, 34) are hingedly connected, and wherein the articulated arms ( 06, 35) are biased by tension springs and thereby tension the unwound part of the cloth (02, 33) between winding shaft (03, 36) and drop rail (05, 34), wherein on the winding shaft (03, 36) and / or on the Fall rail (05, 34) at least one pressure rod (13, 22, 37) is provided which at least partially outside the neutral bending fiber of the Wickelwe Lle (03, 36) or the drop rail (05, 34) extends, wherein the push rod (13, 22, 37) can be clamped under pressure.

Description

The invention relates to an articulated arm awning according to the preamble of claim 1.

A generic Gelenkarmwnise is for example from the EP 2 009 192 A2 known. Such articulated arm awnings are used for sun protection, for which purpose a cloth provided on the articulated arm awning is unwound from a winding shaft and clamped by means of an extendable drop rail. The drive of the articulated arm awnings is based on prestressed with tension springs articulated arms, which press the drop rail to the outside and thereby tension the extended part of the cloth. Such Gelenkarmmarkisen may have a cloth having a length in the direction of the winding shaft of 6 meters and more. In order to stretch the cloth such a large articulated awnings, correspondingly large tension springs are provided in the articulated arms. Due to the high fabric tension, it comes to the components of the articulated arm awning, which hold the extended part of the cloth to tension, to considerable mechanical stress. This means in other words that the winding shaft on the one hand holds the unwound part of the cloth on the back and on the drop rail, which holds the leading edge of the cloth, large mechanical loads due to the Cloth tension occur that lead to undesirable deformations on the winding shaft or on the drop rail. The bending deformations on the winding shaft and on the drop rail caused by the fabric tension can considerably impair the visual impression of the articulated arm awning.

In the EP 2 009 192 A2 a clamping device is proposed with which the housing of the articulated arm awning can be placed under tension. The loads occurring on the winding shaft or on the drop rail can not be compensated for by such a tensioning device attached to the housing, since the tensile stresses introduced via the housing can not be transmitted to the winding shaft or to the drop rail.

Object of the present invention is therefore to propose a new articulated arm awning, which avoid the disadvantages described above with regard to the mechanical loads and deformations on the winding shaft or the drop rail.

This object is achieved by an articulated arm awning according to the teaching of claim 1.

Advantageous embodiments of the invention are the subject of the dependent claims.

The articulated arm awning according to the invention is based on the basic idea that at least one pressure rod is provided on the winding shaft and / or on the drop rail, which runs at least in sections outside the neutral bending fiber of the winding shaft or the drop rail. The pressure rod is characterized in that it can be clamped under pressure to deform the winding shaft and / or the drop rail by the tensile load occurring as a counter force in the direction transverse to the longitudinal axis. In other words, this means that the length of the pressure rod is selected or adjusted in relation to the clamping length, that due to the difference in length a pressure is exerted on the pressure rod. The pressure forces thus exerted by the pressure rod act on the winding shaft and / or the drop rail, so that corresponding tensile stresses act in the winding shaft or in the drop rail. Since these tensile stresses act outside the neutral bending fiber of the winding shaft or the drop rail, a corresponding deformation of the winding shaft or the drop rail is effected transversely to their respective longitudinal axis. As a result of this deformation caused by the pressure rod, the deformations of the winding shaft or of the drop rail occurring due to the fabric tension or the dead weight can be completely or partially neutralized. In other words, this means that the bending load caused by the fabric tension can be wholly or partially compensated for by the bending bar or drop rail caused by the pressure rod, so that the undesired effects of the bending load on the optics of the articulated arm awning can be completely or partially eliminated.

The type and size of the bending stress exerted by the fabric tension on the winding shaft or the drop rail can be difficult to predict in most cases. In order to make the desired compensation of the bending stress exerted by the cloth tension after mounting the Gelenkarmwnise still, it is particularly advantageous if an adjustment is provided with the length of the push rod or the clamping length of the push rod, in particular the distance between two repositories, changeable is. As a result, when mounting the articulated-arm awning, the installer thus has the possibility of adjusting the pressure load applied by the pressure rod after assembly has been completed in such a way that the bending deformation exerted by the fabric tension is completely or at least substantially compensated by the bending deformation exerted by the compressive load ,

In which way the adjusting element is designed constructively, is basically arbitrary. According to a first embodiment, it is provided that the adjusting element is designed in the manner of an adjusting screw. By turning the adjusting screw, the clamping length of the pressure rod can then be varied so that the undesired deformations on the winding shaft or on the drop rail are compensated.

In order to simplify the assembly of the pressure rod on the winding shaft or on the drop rail, it is particularly advantageous if at least one end bearing is adjustably fixed to the winding shaft or the drop rail. By adjusting the repository then the clamping length between the two repositories can first be adjusted so that the pressure rod is substantially free of play between the two repositories. By adjusting the adjustment then the desired compressive stress can then be applied easily.

The loads caused by the articulated arms on the winding shaft or on the drop rail depend strongly on how far the articulated arm awning is extended or retracted. The farther the articulated arm awning is extended, the stronger the articulated arms press on the drop rail due to the spring preload. It follows that the deformations occurring on the drop rail or on the winding shaft are dependent on the position of the articulated arms. The largest deformations occur when the articulated arms are maximally extended. In order to be able to compensate these position-dependent deformations by installing the pressure rods according to the invention also position-dependent, a coupling member may be provided on at least one articulated arm, which is pivoted together with the articulated arm during retraction and extension of the articulated awning. This coupling member is arranged so that it presses indirectly or directly on one end of the push rod, wherein the pressure exerted by the coupling member on the push rod pressure varies with the pivot angle of the articulated arm. This means with others Words that exerted by the pressure rod on the winding shaft or on the drop rail tensile loads change depending on the position of the articulated arms. The change in the tensile load and the resulting deformations are just chosen so that the deformations caused by the articulated arms themselves are completely or at least largely compensated.

According to a preferred embodiment variant, it is provided that the pressure exerted by the coupling member on the pressure rod pressure reaches a minimum pressure at fully retracted articulated arm awning and a maximum pressure at fully extended articulated arm awning. Due to the minimum pressure at fully retracted articulated arm awning, which can mark, for example, a zero pressure state, it is achieved that the compensation of the bending deformation is minimal with retracted articulated arm awning. The maximum pressure when the articulated arm awning is fully extended causes maximum compensation of the bending deformation when the awning is fully extended.

In which way the coupling member is designed to exert the position-dependent pressure on the push rod is basically arbitrary. This can be realized in a particularly simple and cost-effective manner by virtue of the fact that the coupling element is designed in the manner of a parking cam rigidly fastened to the end of the articulated arm. This rigid adjusting cam pivots together with the articulated arm and presses directly or indirectly on the end of the push rod. Of course, at both ends of the two articulated arms of an articulated arm awning in each case an adjusting cam be present to exert a position-dependent pressure on the pressure rod from both sides.

In which way the pressure rod is held on the winding shaft or on the drop rail in order to apply the desired pressure load on the winding shaft or the drop rail, is basically arbitrary. This can be done in a particularly simple way by virtue of the fact that, on the winding shaft or the drop rail, the neutral bending fiber is inserted is provided parallel to the longitudinal axis extending profile section. In this profile section, which can be easily produced, for example, by extrusion of extruded winding shafts or drop rails, the pressure rod is then absorbed.

In order to avoid unwanted bulging of the pressure rod, it is advantageous if the outer cross section of the pressure rod at least partially coincides with the inner cross section of the profile section. In this way, the pressure rod is supported by the profile section at least partially form-fitting laterally and bulging of the pressure rod is excluded to the effect.

In order to make possible the adjustment to compensate for the deformations occurring due to the fabric tension on the winding shaft or the drop rail as variably as possible, it is particularly advantageous if a plurality of profile sections extending parallel to the longitudinal axis are provided on the winding shaft and / or on the drop rail each of which a push rod is recorded. By exerted by the various pressure bars on the winding shaft or on the drop rail compressive stresses that overlap each other, the Kompensierbarkeit of undesirable deformations can be significantly improved.

As far as several profile sections are provided for receiving a plurality of pressure rods on the winding shaft, it is advantageous if these profile sections are distributed at an equidistant distance over the circumference of the winding shaft.

As far as a cover is attached to the articulated arm awning to protect the winding shaft from the weather, deformations on these covers can also be compensated by appropriate attachment of a push rod in a cover provided on the profile section.

As far as a housing is provided on the articulated arm awning, which protects the cloth, the winding shaft and the articulated arms from the weather, it is particularly advantageous if at least one profile section is provided on the housing, in which a pressure rod is received.

An embodiment of the invention is shown schematically in the drawings and is explained below by way of example.

Fig. 1

eine erfindungsgemäße Gelenkarmmarkise im ausgefahrenen Zustand in seitlicher perspektivischer Ansicht;

Fig. 2

die Gelenkarmmarkise gemäß Fig. 1 im eingefahrenen Zustand in seitlicher perspektivischer Ansicht;

Fig. 3

die Fallschiene der Gelenkarmmarkise gemäß Fig. 1 in seitlicher perspektivischer Ansicht;

Fig. 4

die Fallschiene gemäß Fig. 3 in seitlicher Ansicht;

Fig. 5

die Fallschiene gemäß Fig. 3 in rückseitiger perspektivischer Ansicht;

Fig. 6

die Fallschiene gemäß Fig. 3 mit demontierten Endlagern in rückseitiger Ansicht;

Fig. 7

die Fallschiene gemäß Fig. 3 mit montierten Endlagern in rückseitiger Ansicht;

Fig. 8

die Endlager der Fallschiene gemäß Fig. 3 in vergrößerter Teilansicht;

Fig. 9

die Wickelwelle der Gelenkarmmarkise gemäß Fig. 1 in seitlicher perspektivischer Ansicht;

Fig. 10

die Wickelwelle gemäß Fig. 9 in seitlicher Ansicht;

Fig. 11

die Wickelwelle gemäß Fig. 9 mit demontierten Endlagern in seitlicher perspektivischer Ansicht;

Fig. 12

die Wickelwelle gemäß Fig. 9 mit montierten Endlagern in Ansicht von vorne;

Fig. 13

die Endlager der Wickelwelle gemäß Fig. 9 in einer vergrößerten Teilansicht;

Fig. 14

eine Abdeckung der Gelenkarmmarkise gemäß Fig. 1 in perspektivischer Ansicht;

Fig. 15

die Abdeckung gemäß Fig. 14 in seitlicher Ansicht;

Fig. 16

eine Gehäuse der Gelenkarmmarkise gemäß Fig. 1 in perspektivischer Ansicht;

Fig. 17

das Gehäuse gemäß Fig. 16 in seitlicher Ansicht;

Fig. 18

eine zweite Ausführungsform einer erfindungsgemäßen Gelenkarmmarkise im ausgefahrenen Zustand in seitlicher perspektivischer Ansicht;

Fig. 19

die Fallschiene mit dem vorderen Ende des Gelenkarms der Gelenkarmmarkise gemäß Fig. 18 in seitlicher Ansicht;

Fig. 20

die Fallschiene mit dem vorderen Ende des Gelenkarms der Gelenkarmmarkise gemäß Fig. 19 im demontierten Zustand in perspektivischer Ansicht;

Fig. 21

die Fallschiene mit dem vorderen Ende des Gelenkarms der Gelenkarmmarkise gemäß Fig. 19 in Ansicht von vorne;

Fig. 22

die Fallschiene mit dem vorderen Ende des Gelenkarms der Gelenkarmmarkise gemäß Fig. 21 in vergrößerter Ansicht.

Show it:

Fig. 1

an articulated arm awning according to the invention in the extended state in a lateral perspective view;

Fig. 2

the articulated arm awning according to Fig. 1 in the retracted state in lateral perspective view;

Fig. 3

the drop rail of the articulated arm awning according to Fig. 1 in a lateral perspective view;

Fig. 4

the drop rail according to Fig. 3 in lateral view;

Fig. 5

the drop rail according to Fig. 3 in back perspective view;

Fig. 6

the drop rail according to Fig. 3 with dismantled repositories in back view;

Fig. 7

the drop rail according to Fig. 3 with mounted repositories in back view;

Fig. 8

the repository of the drop rail according to Fig. 3 in enlarged partial view;

Fig. 9

the winding shaft of the articulated arm awning according to Fig. 1 in a lateral perspective view;

Fig. 10

the winding shaft according to Fig. 9 in lateral view;

Fig. 11

the winding shaft according to Fig. 9 with dismantled repositories in lateral perspective view;

Fig. 12

the winding shaft according to Fig. 9 with mounted repositories in front view;

Fig. 13

the repository of the winding shaft according to Fig. 9 in an enlarged partial view;

Fig. 14

a cover of the articulated arm awning according to Fig. 1 in perspective view;

Fig. 15

the cover according to Fig. 14 in lateral view;

Fig. 16

a housing of the articulated arm awning according to Fig. 1 in perspective view;

Fig. 17

the housing according to Fig. 16 in lateral view;

Fig. 18

a second embodiment of an articulated arm awning according to the invention in the extended state in a lateral perspective view;

Fig. 19

the drop rail with the front end of the articulated arm of the articulated arm awning according to Fig. 18 in lateral view;

Fig. 20

the drop rail with the front end of the articulated arm of the articulated arm awning according to Fig. 19 in disassembled state in perspective view;

Fig. 21

the drop rail with the front end of the articulated arm of the articulated arm awning according to Fig. 19 in front view;

Fig. 22

the drop rail with the front end of the articulated arm of the articulated arm awning according to Fig. 21 in enlarged view.

Fig. 1 and Fig. 2 show an articulated arm awning 01 in the extended state (see Fig. 1 ) or in the retracted state (see Fig. 2 ). For sun protection, the articulated arm awning 01 comprises a cloth 02 which can be wound onto a winding shaft 03. The front edge 04 of the cloth 02 is attached to a drop rail 05. The drop rail 05 in turn is mounted on two articulated arms 06 extendable. The articulated arms 06 are hingedly connected to the drop rail 05 at the front and articulated to a wall bracket 07 at the rear. The wall bracket 07 can be fixed with suitable fasteners on a building wall.

The two articulated arms 06 are biased by tension springs. The tension springs are installed so that the articulated arms 06 are pressed apart by the tension springs. The two prestressed articulated arms 06 serve to keep the cloth 02 in the tensioned state during extension. If the winding shaft 03 driven by hand or motor driven rotationally, the unwound part of the cloth 02 is pulled by the drop rail 05 to the outside. This extension movement of the drop rail 05 is based on the spring tension of the prestressed articulated arms 06.

Fig. 2 shows the articulated arm awning in retracted position. The winding shaft 03 is protected by a cover 08 from above from the weather.

FIG. 3 and FIG. 4 show the drop rail 05 in perspective view and in side view. The drop rail 05 comprises a cloth fastening profile 09, in which the front edge 04 of the cloth 02 can be fastened with an adhesive. Further, the drop rail 05 includes a valance attachment profile 10 to which a valance can be attached. In each case immediately adjacent to the Tuchbefestigungsprofil 09 and the Volantbefestigungsprofil 10 profile sections 11 and 12 are provided, in each of which a pressure rod 13 is received. In addition, the circular-segment-shaped drop rail 05 points in the middle of the circular section a profile section 14, in which also a push rod 13 is received.

Fig. 5 shows the drop rail 05 with the profile sections 11, 12 and 14 in rear perspective view. The attached in the profile section 14 push rod 13 is shown in the disassembled state.

Fig. 6 also shows the drop rail 05 with the dismantled from the profile section 14 push rod 13 in rear view. To fix the pressure rods 13 in the profile sections 11, 12 and 14 are each two end bearings 15 and 16, which can be releasably and adjustably fixed in the respective associated profile sections by means of fastening screws 17. The end bearing 15 comprises an adjusting element 18 designed in the manner of an adjusting screw.

Fig. 7 shows the shortened illustrated drop rail 05 after mounting the push rod 13 in the profile section 14. For this purpose, the push rod 13 is first inserted into the form complementary profile section 14 and then the two end bearings 15 and 16 fixed by attaching the mounting screws 17. By adjusting the adjusting member 18, the push rod 13 can then be placed under the risk of bulging under pressure. The corresponding opposing forces, which are transmitted from the end bearings 15 and 16 to the drop rail 05, ensure a corresponding bending deformation of the drop rail 05, by the other bending deformations caused by the fabric tension of the cloth 02, can be compensated.

Fig. 8 shows the repository 15 and 16 after assembly on the profile section 14 in an enlarged section.

FIGS. 9 and 10 show the winding shaft 03 in perspective view and in side view. The extruded winding shaft 03 also contains three profile sections 19, 20 and 21, in each of which a pressure rod 22 is received. The three profile sections 19, 20 and 21 are distributed at an equidistant distance over the circumference of the winding shaft 03, wherein the profile portion 20, the cloth attachment profile 23, on which the lower edge of the cloth 02 can be attached with an adhesive, is arranged opposite.

How out 11, 12 and 13 can be seen, the pressure rods 22 between two releasably and adjustably fastened in the profile sections 19, 20 and 21 end bearings 24 and 25 are clamped, wherein the end bearing 24 again formed in the manner of an adjustment adjustment screw 26 for varying the pressure applied by the pressure rod 22 pressure load is provided.

FIGS. 14 and 15 show the cover 08 in perspective or in side view. Also on the cover 08, a profile section 27 is provided, in which a push rod 28 is received. The assembly of the pressure rod 28 in the profile section 27 is again by inserting corresponding repository in the profile section 27th

FIGS. 16 and 17 show the housing 29 of the articulated arm awning 01 in perspective or in a lateral view. Also on the housing 29, a profile section 30 is provided, in which a pressure rod 31 is received. The assembly of the pressure rod 31 in the profile section 30 again takes place by inserting corresponding end bearing in the profile section 30.

Fig. 18 shows a second embodiment 32 of an articulated arm awning according to the invention in the extended state. The articulated arm awning 32 in turn comprises a cloth 33 which can be tensioned by extending a drop rail 34 by means of two articulated arms 35. The cloth 33 can be wound onto a winding shaft 36.

In the drop rail 34, a push rod 37 is installed, which is held in a profile section 38 (see Fig. 19 ). To pressurize the push rod 37 with a dependent on the position of the articulated arms 35 pressure To be able to, at the front end 39 of the two articulated arms 35 each have a coupling member 40 is provided which is formed in the manner of a rigidly connected to the end 39 of the articulated arms 35 parking cam. The further the articulated arms 35 are extended, the stronger the coupling member 40 is pivoted in the direction of the two ends of the pressure rod 37, and thereby shortens the clamping length of the pressure rod 37 in the profile section 38. By shortening the clamping length of the push rod 37 is compressed. The corresponding opposing forces are introduced via the pivot bearing 41 of the two articulated arms 35 on the drop rail 34 in the drop rail 34 and cause there corresponding tensile loads. As a result of these tensile loads, the drop rail is subjected to a state of tensile stress, so that the bending deformations of the drop rail caused by the extension of the articulated arms are at least partially compensated. The compensation of the bending load takes place depending on the position of the articulated arms, so that the compensation for swiveled articulated arms, that is minimum when retracted articulated arm awning and extended articulated arms, that is maximum when extended Gelenkarmwnise.

Fig. 20 . FIGS. 21 and 22 show the coupling member 40 together with the push rod 37 in different views. The coupling member 40 acts via an intermediate piece 42 indirectly on the end of the push rod 37th

Claims (13)

Articulated arm awning (01, 32), with a cloth (02, 33) which is fixed to the rear edge of a winding shaft (03, 36), wherein the cloth (02, 33) by rotational drive of the winding shaft (03, 36) the winding shaft (03, 36) can be wound up, and wherein at the front edge (04) of the cloth (02, 33) a drop rail (05, 34) is provided, and wherein the drop rail (05, 34) on at least two articulated arms (06 , 35) is mounted extendable, and wherein the articulated arms (06, 35) are articulated, and wherein the articulated arms (06, 35) with the drop rail (05, 34) are hingedly connected, and wherein the articulated arms (06, 35) are prestressed with tension springs and thereby tension the unwound part of the cloth (02, 33) between the winding shaft (03, 36) and the drop rail (05, 34),
characterized,
that at least one pressure rod (13, 22, 37) is provided on the winding shaft (03, 36) and / or on the drop rail (05, 34), at least partially outside the neutral bending fiber of the winding shaft (03, 36) or the drop rail (05, 34) runs, wherein the pressure rod (13, 22, 37) can be clamped under pressure. Articulated arm awning according to claim 1,
characterized,
that an adjusting member is variable (18, 26) is provided, with which the length of the push rod or the clamping of the push rod (13, 22), in particular the distance between two end bearings (15, 16, 24, 25). Articulated arm awning according to claim 2,
characterized,
that the adjusting element (18, 26) is designed in the manner of an adjusting screw. Articulated arm awning according to claim 2 or 3,
characterized,
in that at least one end bearing (15, 16, 24, 25) is adjustably fixable on the winding shaft (03) or the drop rail (05). Articulated arm awning according to one of claims 1 to 4,
characterized,
that a coupling member (40) is on at least one articulated arm (35) is provided, which together with the link arm (35) during retraction and extension of the arm awning (32) is pivoted, wherein the coupling member (40) indirectly or directly on one end of the Push rod (37) presses, and wherein the pressure exerted by the coupling member (40) on the push rod (37) pressure varies with the pivot angle of the articulated arm (35). Articulated arm awning according to claim 5,
characterized,
that the pressure exerted by the coupling member (40) on the pressure rod (37) reaches a pressure minimum when the articulated-arm awning (32) is retracted and reaches a maximum pressure when the articulated-arm awning (32) is extended. Articulated arm awning according to claim 5 or 6,
characterized,
in that the coupling member (40) is designed in the manner of a positioning cam rigidly fastened to the end of the articulated arm. Articulated arm awning according to one of claims 1 to 7,
characterized,
that on the winding shaft (03, 36) and / or on the drop rail (05, 34) outside of the neutral bending fiber a extending parallel to the longitudinal profiled section (11, 12, 14, 19, 20, 21, 38) is provided, in the push rod (13, 22, 37) is received. Articulated arm awning according to claim 8,
characterized,
that the outer cross section of the push rod (13, 22, 37) at least in sections with the inner cross section of the profile section (11, 12, 14, 19, 20, 21, 38) coincides, and the pressure bar (13, 22, 37) from the profile section (11, 12, 14, 19, 20, 21, 38) is at least partially positively supported laterally. Articulated arm awning according to one of claims 1 to 9,
characterized,
in that a plurality of profile sections (11, 12, 14, 19, 20, 21) extending parallel to the longitudinal axis are provided on the winding shaft (03) and / or on the drop rail (05), in each of which a pressure rod (13, 22) is received is. Articulated arm awning according to claim 10,
characterized,
that on the winding shaft (03) a plurality of parallel to the longitudinal axis extending profile sections (19, 20, 21) are provided, in each of which a pressure rod (22) is received, the profile sections (19, 20, 21) with equidistant spacing over the Scope of the winding shaft (03) are distributed. Articulated arm awning according to one of claims 1 to 11,
characterized,
in that a cover (08) can be fastened to the articulated-arm awning (01), which protects the winding shaft (03) from the effects of weather, wherein at least one profile section (27) is provided on the cover, in which a pressure rod (28) is accommodated. Articulated arm awning according to one of claims 1 to 12,
characterized,
in that a housing (29) is provided on the articulated-arm awning (01), which protects the cloth (02), the winding shaft (03) and the articulated arms (06) from the effects of weather, wherein at least one profile section (30) is provided on the housing (29) is, in which a push rod (31) is received.

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