Awning

Abstract

An awning has a support device, a cloth shaft, a cloth, a lead bar and a drive device. The lead bar can be adjusted by means of the drive device between a completely retracted minimum position and a completely extended maximum position. The drive device has at least one first arm member which, at its inner end close to the cloth shaft, is mounted by means of a joint device for pivoting about a pivot axis. The joint device is designed such that an inclination of the pivot axis relative to the vertical changes depending on the pivoting movement of the first arm member and depending on the distance of the lead bar from the cloth shaft. A control part is provided which is connected in an articulated manner to the first arm member at a first joint and is connected in an articulated manner to the support device at a second joint.

Description

[0001] Awning The invention relates to an awning with a support device, a horizontally extending fabric shaft which is rotatably mounted on the support device, a fabric, a horizontally extending projection rod and a drive device, wherein the fabric is connected to the fabric shaft in the area of ​​an inner fabric edge and to the projection rod in the area of ​​an opposite outer fabric edge, wherein the projection rod can be moved by means of the drive device between a fully retracted minimum position P0, in which the fabric is wound up as far as possible on the fabric shaft, and a fully extended maximum position P 100 , in which the cloth is stretched as far as possible, is adjustable, whereby the drop rod can be adjusted between the minimum position P0 and the maximum position P 100 a variety of intermediate positions P i, wherein the drive device has at least one first arm member which is pivotally mounted at its inner end facing the cloth shaft by means of a joint device about a pivot axis S, and wherein each position P0, P 100 , P ithe drop rod is assigned a defined pivot position of the 1st arm link about the pivot axis S, wherein the articulated device is designed such that an inclination of the pivot axis relative to a vertical changes depending on the pivot position of the 1st arm link and depending on the distance of the drop rod from the fabric shaft. An awning with the aforementioned structure can be designed as an open awning or also as a so-called box awning, in which the fabric shaft is accommodated in a box-shaped housing. The support device, which can be brackets, rods or supports, is attached in a suitable manner to a substructure, for example a building wall. Several spring-loaded, multi-section articulated arms can be provided as the drive device. Each articulated arm has a 1stArm link which, in its inner end region facing the fabric shaft, is pivotally mounted directly or indirectly on the support device about the pivot axis S. The pivot axis S runs perpendicular to the longitudinal axis of the 1st arm link. At its opposite outer end, the 1st arm link is articulated to a 2nd arm link, with a spring, usually a tension spring, being provided between the 1st arm link and the 2nd arm link, loading the two arm links into an extended position. The 2nd arm link is articulated to the drop rod at its end facing the drop rod. Alternatively, it is also possible for the drive device to be formed by one or more piston-cylinder units, with the piston-cylinder unit then forming the 1st arm link.In the following, however, it is assumed by way of example that the drive device is formed by at least one multi-part articulated arm of the aforementioned construction; however, the invention is not limited thereto. When the awning is to be extended from the fully retracted minimum position P0, the extension rod is moved away from the fabric shaft as a result of the drive device, whereby the fabric is pulled off the fabric shaft and stretched. The invention relates exclusively to awnings that are in their fully extended maximum position P. 100 and also in their intermediate positions P iproject freely and where the drop rod is not moved by lateral guides on a path of movement predetermined by the guides. All of the following considerations assume that the drop rod, the fabric, the fabric shaft, and the drive mechanism are not subject to deformation or displacement due to their own weight and due to possible assembly inaccuracies or play in the connections, i.e., all statements and information refer to the undeformed, ideal static system. In the extended state, the fabric extends between the drop rod and the fabric shaft, forming a fabric plane. Typically, the fabric plane, starting from the fabric shaft, is inclined downwards at an angle of approximately 10° to 30° relative to a horizontal plane, i.e., the drop rod is at least in its maximum position P 100at a lower height than the fabric roller. In older awnings, the angle of inclination of the fabric roller relative to the horizontal is fixed, but there are also awnings where the user can adjust the angle of inclination using a suitable tool. Tilt angles in an adjustment range of 0° to 30° are common. Once the user has set a suitable angle of inclination, this remains the same until the user adjusts the angle again using the tool. The extent to which an awning must be extended to adequately shade the space below depends largely on the position of the sun. When the sun is very high in the sky, relatively few rays of sunlight fall into the space to be shaded below the awning, so it is often sufficient to extend the awning only partially, rather than fully.However, when the sun is already relatively low, particularly in the evening hours, a lot of sunlight enters the room to be shaded from the side, so the user has to set the fabric plane very diagonally, i.e. the angle of inclination very large, in order to achieve good shading of the space below the awning. This process is very complex. EP 3225 762 A1 describes an awning that gradually lowers when extended. Starting from the fabric roller, the awning initially has a flat, close to horizontal path of movement, which curves further downwards with increasing distance from the fabric roller. In design terms, this is achieved by a wobbling axle bolt, which causes the inclination to change depending on the extension distance. The wobbling bearing of the axle bolt is relatively unstable and does not lead to a precisely defined inclination path.The invention is based on the object of creating an awning of the type mentioned, which simply enables good shading of the space located beneath the awning at different positions of the sun and at different awning extension states, and which has a stable construction and a defined path of movement. This object is also achieved according to the invention by an awning having the features of claim 1. According to the invention, the basic idea is also to adjust the inclination of the fabric plane when the awning is extended between the fully retracted minimum position P0 and the fully extended maximum position P. 100to change at least in sections and preferably continuously, so that the drop rod is moved on a vertically downwardly curved path of movement. This is achieved according to the invention in that the joint device is designed such that an inclination of the pivot axis S relative to a vertical V changes depending on the pivot position of the 1st arm member and depending on the distance of the drop rod from the cloth shaft. A control part is provided which is pivotally connected to the 1st arm member at a 1st joint and to the support device at a 2nd joint. The 1st arm member can have a lateral projection or shoulder on its end region facing the cloth shaft, on which shoulder the 1st joint can be formed. A corresponding shoulder can be provided on the support device, for example a so-called arm support, on which shoulder the 2nd joint can be formed.In one possible embodiment of the invention, it is provided that the control part is rod- or tab-shaped and has at one end the 1st joint with a 1st joint axis G1 and at its opposite end the 2nd joint with a 2nd joint axis G2. The 1st joint axis G1 and the 2nd joint axis G2 can run inclined relative to one another at an angle in the range of 70° to 90°. Preferably, the joint device is designed such that the inclination of the pivot axis S relative to the vertical V, at least in a partial range of the adjustment of the drop rod, lies between the minimum position P0 and the maximum position P. 100 The further the drop rod is from the fabric shaft, the greater the force. Preferably, a change in the inclination of the pivot axis S relative to the vertical V over the entire adjustment movement between the minimum position P0 and the maximum position P 100provided. The first arm member is preferably rod-shaped or bar-shaped and has a longitudinal axis L. The pivot axis S preferably runs perpendicular to the longitudinal axis L. In a preferred embodiment of the invention, it can be provided that the pivot axis S runs vertically in the minimum position P0 and coincides with the vertical V. The inclination of the pivot axis S relative to the vertical V changes depending on the distance of the drop rod from the fabric shaft. It is preferably provided that the inclination of the pivot axis S relative to the vertical V in the maximum position P 100 the dropout bar is at its greatest. In this maximum position P 100of the drop rod, the inclination of the pivot axis S relative to the vertical V is preferably in a range of 9° to 35° and particularly preferably in a range of 10° to 25°. In one possible embodiment of the invention, the articulated device can be designed such that the pivot axis S is formed between the 1st arm member and a bearing part and that the bearing part is mounted on the support device so as to be directly or indirectly pivotable about a tilt axis K. In a preferred embodiment of the invention, the tilt axis K runs horizontally + / - 5°. The articulated device can be connected to the support device via a pivot mechanism, by means of which the articulated device and at least some and preferably all of the components attached thereto can be adjusted in terms of their inclination relative to the horizontal.The bearing part, which is preferably disc- or plate-shaped, can have a console-like extension, wherein the pivot axis S can penetrate the extension. Preferably, a bore is provided in the extension, through which a bolt defining the pivot axis S passes. The bolt can run and be held between two tabs of the first arm member. The following is an example of a possible embodiment of the awning according to the invention, wherein the aforementioned features can be used individually or in combination. The articulated arm awning can have a horizontally running fabric shaft that is rotatably held on a support device, which can be a building wall, a beam, or other support. The fabric is attached to the fabric shaft with its inner end facing the fabric shaft and can be wound onto and unwound from it.At the opposite end, the fabric is connected to the horizontally extending drop rod. The drop rod is connected to the drive device, which can be formed by two spring-loaded, two-link articulated arms. Each articulated arm can have a 1st arm link and a 2nd arm link. The 1st arm link can be articulated directly or indirectly to the support device at its inner end facing the fabric shaft by means of the articulated device. At its opposite end, the 1st arm link can be connected to the 2nd arm link via an intermediate joint. The 2nd arm link can be connected to the drop rod at its end facing the drop rod via a further articulated device. Each articulated arm can be moved into its extended position, i.e. into the maximum position P, by means of a spring (not shown) in a known manner. 100be pre-tensioned in which the cloth is stretched as far as possible. The 1st arm link can have, at its end facing the joint device, two tabs running in the longitudinal direction L of the 1st arm link and spaced apart in the direction of the height of the 1st arm link, as well as a lateral projection which carries a projection extending perpendicularly thereto, for example in the form of a screwed-in eyebolt. The projection can be rotatably or non-rotatably mounted on the projection. The tabs and the lateral projection can be formed on a prefabricated adapter part which is rigidly attached to the 1st arm link. The support device can have a so-called arm support which can carry an adjusting lever which is adjustably mounted on the arm support and whose inclination can be adjusted relative to the arm support. The adjusting lever can have a projection on which a projection can be formed, for example in the form of a screwed-in eyebolt.The extension can be rotatably or non-rotatably mounted on the projection. A disc-shaped bearing part can be pivotally mounted on the arm support about a tilting axis K, wherein the tilting axis K runs horizontally. The bearing part can have a console-like extension which can be designed such that it can be received between the two tabs of the 1st arm link. A bore is formed in the console-like extension, through which a bolt can pass, which can be fastened to the tabs of the 1st arm link. The bolt in the bore defines a pivot axis S about which the 1st arm link can pivot relative to the bearing part and its console-like extension. In addition, the 1st arm link can pivot together with the bearing part about the tilting axis K relative to the arm support. A rod-shaped or bow-shaped control part can be connected at one end to the base of the lateral projection of the 1st joint, forming a 1st joint.arm link must be articulated. The 1st joint defines a 1st joint axis G1. At its opposite upper end, the control part can be articulated to the base of the adjustment lever to form a 2nd joint. The 2nd joint defines a 2nd joint axis G2. In a minimum position P0, in which the fabric is wound up as far as possible on the fabric shaft and the articulated arms are retracted, the pivot axis S can coincide with a vertical V. In this minimum position P0, the 1st arm link runs horizontally. When the drop rod is extended from the retracted minimum position P0 and the fabric is stretched, the 1st arm link can pivot about the pivot axis S. The geometry of the 1st arm link, the control part and the bearing part are coordinated in such a way that the bearing part also pivots about the tilt axis K when the 1st arm link pivots out.This can lead to the console-like extension of the bearing part also pivoting about the tilt axis K, which leads to an inclination of the pivot axis S relative to the vertical V. The inclination of the pivot axis S relative to the vertical V is greater the further the drop rod is extended and away from the fabric shaft. An adapter piece can be attached to the end of the 1st arm link facing the fabric shaft, which adapter piece is rigidly connected to the 1st arm link in all directions, which adapter piece is thereby a component of the 1st arm link and on which the joint device and / or the 1st joint is preferably formed. In an alternative structural embodiment of the invention, it can be provided that the 1st arm link has a lower pivot bearing and an upper pivot bearing at its end region facing the fabric shaft, and that the pivot axis S runs between the lower pivot bearing and the upper pivot bearing.The lower pivot bearing and / or the upper pivot bearing can be designed as a cardan joint. In order to ensure that the inclination of the pivot axis S relative to the vertical changes depending on the pivot position of the first arm link and depending on the distance of the drop rod from the fabric shaft, the upper pivot bearing and / or the lower pivot bearing can be displaced along a guide by means of an adjustment device. The adjustment device can have a curved part with a control curve. The control curve ensures that the upper pivot bearing and / or the lower pivot bearing are displaced along the guide when the first arm link pivots. Displacing the upper pivot bearing and / or the lower pivot bearing changes the orientation and thus the inclination of the pivot axis S relative to the vertical V.Further details and features of the invention will become apparent from the following description of exemplary embodiments with reference to the drawings. Fig. 1 shows a schematic representation of the basic design of an articulated-arm awning; Fig. 2 is a perspective view of the joint device; Fig. 3 shows the joint device according to Fig. 2 in a minimum position P0; Fig. 4 shows the joint device according to Fig. 2 in an intermediate position P. i and Fig. 5 the joint device according to Fig. 2 in the maximum position P 100. Fig. 1 shows a schematic perspective view of an articulated arm awning 10, which has a horizontally running fabric shaft 11 that is rotatably mounted on a support device 18, which can be a building wall, a beam, or other support. A fabric 12 is attached to the fabric shaft 11 with an inner end facing the fabric shaft 11 and can be wound onto and unwound from it. At the opposite end, the fabric 12 is connected to a horizontally running drop rod 13. The drop rod 13 is connected to a drive device 14, which in the illustrated embodiment is formed by two spring-loaded, two-link articulated arms 15. Each articulated arm 15 has a 1st arm link 16 and a 2nd arm link 17. The 1stArm link 16 is connected in an articulated manner to the support device 18 at its inner end 16a facing the fabric shaft 11 by means of a joint device 19, directly or indirectly. At its opposite end, the 1st arm link 16 is connected to the 2nd arm link 17 via an intermediate joint 35. The 2nd arm link 17 is connected to the drop rod 13 at its end facing the drop rod via a further joint device 34. Each articulated arm 15 is biased into its extended position, i.e., into the maximum position P, in a known manner by means of a spring (not shown). 100pre-tensioned, in which the cloth 12 is stretched as far as possible, as shown in Fig. 1. The joint device 19 is shown in detail in Fig. 2. The 1st arm link 16 has, at its right-hand end according to Fig. 2, facing the joint device 19, two tabs 33 running in the longitudinal direction L of the 1st arm link 16 and spaced apart in the direction of the height of the 1st arm link 16, as well as a lateral projection 31 which carries a projection 36 extending perpendicularly thereto, for example in the form of a screwed-in eyebolt. The tabs 13 and the lateral projection 31 can be formed on a prefabricated adapter part which is rigidly attached to the 1st arm link 16. Of the support device 18, a so-called arm support 37 is shown, which carries an adjusting lever 43 which is adjustably mounted on the arm support 37 and whose inclination can be adjusted relative to the arm support 37.The adjusting lever 43 has a projection 32 on which a projection 38 is formed, for example in the form of a screwed-in eyebolt. A disc-shaped bearing part 20 is pivotally mounted on the arm support 37 about a tilt axis K, wherein the tilt axis K runs horizontally. The bearing part 20 has a console-like projection 24 which is designed such that it can be received between the two tabs 33 of the 1st arm link 16. A bore 40 is formed in the console-like projection 24, through which a bolt 39 penetrates, which is fastened to the tabs 33 of the 1st arm link 16. The bolt 39 in the bore 40 defines a pivot axis S, about which the 1st arm link 16 can pivot relative to the bearing part 20 and its console-like projection 24. In addition, the first arm member 16 can pivot together with the bearing part 20 about the tilting axis K relative to the arm support 37.A rod-shaped or bow-shaped control part 21 is articulated at its lower end to the projection 36 of the lateral projection 31 of the 1st arm link 16, forming a 1st joint 22. The 1st joint 22 defines a 1st joint axis G1. At its opposite upper end, the control part 21 is articulated to the projection 38 of the adjusting lever 43, forming a 2nd joint 23. The 2nd joint 23 defines a 2nd joint axis G2. In a minimum position P0, in which the cloth 12 is wound as far as possible onto the cloth shaft 11 and the articulated arms 15 are retracted, the pivot axis S can coincide with a vertical V or assume an angle adjusted by means of the adjusting cable 43, as shown in Fig. 3. In this minimum position P0, the 1st arm link runs horizontally. When the drop rod 13 is extended from the retracted minimum position P0 and the fabric 12 is stretched, the 1stArm link 16 about the pivot axis S. The geometry of the 1st arm link 16, the control part 21 and the bearing part 20 are coordinated with one another in such a way that the bearing part 20 also pivots about the tilt axis K when the 1st arm link 16 pivots out. This causes the console-like extension 24 of the bearing part 20 to also pivot about the tilt axis K, which leads to an inclination of the pivot axis S relative to the vertical V. The inclination of the pivot axis S relative to the vertical V is greater the further the extension rod 13 is extended and away from the cloth shaft 11. In an intermediate position shown in Fig. 4, in which the extension rod 13 is approximately half the maximum distance from the cloth shaft 11, the deviation of the pivot axis S from the vertical V is still relatively small. However, when the dropout rod 13 is fully extended and its maximum position P. 100has taken, the inclination of the swivel axis S relative to the vertical V has increased further, as shown in Fig. 5. In the maximum position P 100 the deviation of the swivel axis S from the vertical V is in the range of 9° to 35°.

Claims

1. Awning (10) with a support device (18), a horizontally extending fabric shaft (11) which is rotatably mounted on the support device (18), a fabric (12), a horizontally extending projection rod (13) and a drive device (14), wherein the fabric (12) is connected to the fabric shaft (11) in the region of an inner fabric edge and to the projection rod (13) in the region of an opposite outer fabric edge, wherein the projection rod (13) can be moved by means of the drive device (14) between a completely retracted minimum position (P0), in which the fabric (12) is wound up as far as possible on the fabric shaft (11), and a completely extended maximum position (P 100 ), in which the cloth (12) is stretched as far as possible, wherein the drop rod (13) is adjustable between the minimum position (P0) and the maximum position (P 100 ) a variety of intermediate positions (P i), wherein the drive device (14) has at least one first arm member (16) which is pivotally mounted at its inner end (16a) facing the cloth shaft (11) by means of a joint device (19) about a pivot axis (S), and wherein each position (P0, P i , P 100 ) the drop rod (13) is assigned a defined pivoting position of the 1st arm member (16) about the pivot axis (S), wherein the joint device (19) is designed such that an inclination of the pivot axis (S) relative to a vertical (V) changes depending on the pivoting position of the 1st arm member (16) and depending on the distance of the drop rod (13) from the cloth shaft (11), characterized in that a control part (21) is provided which is connected in an articulated manner to the 1st arm member (16) at a 1st joint (22) and in an articulated manner to the support device (18) at a 2nd joint (23).

2. Awning according to claim 1, characterized in that the control part (21) is rod-shaped or tab-shaped and has the 1st joint (22) with a 1st joint axis (G1) at one end and the 2nd joint (23) with a 2nd joint axis (G2) at its opposite end.

3. Awning according to claim 2, characterized in that the 1st joint axis (G1) and the 2nd joint axis (G2) are inclined relative to one another at an angle in the range of 70° to 90°.

4. Awning according to one of claims 1 to 3, characterized in that the joint device (19) is designed such that the inclination of the pivot axis (S) relative to the vertical (V) at least in a partial range of the adjustment of the drop rod (13) between the minimum position (P0) and the maximum position (P100 ) is greater, the further the projection rod (13) is from the fabric shaft (11).

5. Awning according to one of claims 1 to 4, characterized in that the pivot axis (S) runs vertically in the minimum position (P0).

6. Awning according to one of claims 1 to 5, characterized in that the inclination of the pivot axis (S) relative to the vertical (V) in the maximum position (P 100 ) of the projection rod (13) is greatest.

7. Awning according to one of claims 1 to 6, characterized in that the inclination of the pivot axis (S) relative to the vertical (V) in the maximum position (P 100) of the projection rod (13) is in the range of 9° to 35°.

8. Awning according to one of claims 1 to 7, characterized in that the pivot axis (S) is formed between the 1st arm member (16) and a bearing part (20) and that the bearing part (20) is pivotally mounted on the support device (18) about a tilt axis (K).

9. Awning according to claim 8, characterized in that the tilt axis (K) runs horizontally + / - 5°.

10. Awning according to one of claims 8 to 9, characterized in that the bearing part (20) has a console-like extension (24) and that the pivot axis (S) penetrates the extension (24).

Images