AWNING

Abstract

An awning that has a support device, a cloth shaft, a cloth, a lead bar and a drive device. The lead bar can be adjusted via the drive device between a fully retracted minimum position and a completely extended maximum position. The drive device has at least one first arm link which, at its inner end facing the cloth shaft, is mounted via a joint device so as to pivot 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 link 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 a first arm link at a first joint and which is connected in an articulated manner to the support device at a second joint.

Claims

1. An awning comprising: a support; a horizontally extending cloth shaft that is rotatably mounted on the support; a cloth; a horizontally extending lead bar; a drive; and a control part, wherein the cloth is connected to the cloth shaft in a region of an inner cloth edge and to the lead bar in a region of an opposite outer cloth edge, wherein the lead bar is adapted to be moved via the drive between a fully retracted minimum position, in which the cloth is wound up as far as possible on the cloth shaft, and a fully extended maximum position, in which the cloth is stretched as far as possible, the lead bar occupying a plurality of intermediate positions between the minimum position and the maximum position during the adjustment, wherein the drive has at least one first arm link which is pivotally mounted at its inner end facing the cloth shaft about a pivot axis via a joint, wherein each position of the lead bar is associated with a defined pivot position of the first arm link about the pivot axis, wherein the joint is designed such that an inclination of the pivot axis relative to a vertical changes depending on the pivot position of the first arm link and depending on the distance of the lead bar from the cloth shaft, and wherein the control part is connected in an articulated manner to the first arm link at a first joint and which is connected in an articulated manner to the support at a second joint.

2. The awning according to claim 1, wherein the control part is rod-shaped or tab-shaped and has, at one end, the first joint with a first joint axis and at its opposite end the second joint with a second joint axis.

3. The awning according to claim 2, wherein the first joint axis and the second joint axis run inclined relative to each other at an angle in the range of 70 to 90.

4. The awning according to claim 1, wherein the joint is designed such that the inclination of the pivot axis relative to the vertical is, at least in a partial range of the adjustment of the lead bar between the minimum position and the maximum position greater the further the lead bar is away from the cloth shaft.

5. The awning according to claim 1, wherein, in the minimum position, the pivot axis runs vertically.

6. The awning according to claim 1, wherein the inclination of the pivot axis relative to the vertical is greatest in the maximum position of the lead bar.

7. The awning according to claim 1, wherein, in the maximum position of the lead bar, the inclination of the pivot axis relative to the vertical is in the range of 9 to 35.

8. The awning according to claim 1, wherein the pivot axis is formed between the first arm link and a bearing part, and wherein the bearing part is pivotally mounted on the support about a tilt axis.

9. The awning according to claim 8, wherein the tilt axis runs horizontally +/5.

10. The awning according to claim 8, wherein the bearing part has a console-formed attachment, and wherein the pivot axis penetrates the attachment.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0044] The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus, are not limitive of the present invention, and wherein:

[0045] FIG. 1 shows the basic structure of an articulated arm awning in a schematic view,

[0046] FIG. 2 is a perspective view of the joint device,

[0047] FIG. 3 shows the joint device according to FIG. 2 in a minimum position P.sub.0,

[0048] FIG. 4 shows the joint device according to FIG. 2 in an intermediate position P.sub.i, and

[0049] FIG. 5 shows the joint device according to FIG. 2 in the maximum position P.sub.100.

DETAILED DESCRIPTION

[0050] FIG. 1 shows a schematic perspective view of an articulated arm awning 10 having a horizontally extending cloth shaft 11 which is rotatably held on a support device 18, which may be a building wall, a beam or other support.

[0051] A cloth 12 is attached to the cloth shaft 11 with an inner end facing the cloth shaft 11 and can be wound up onto and unwound from said roller.

[0052] At the opposite end, the cloth 12 is connected to a horizontally running lead bar 13. The lead bar 13 is connected to a drive device 14, which in the illustrated example is formed by two spring-loaded, two-link articulated arms 15. Each articulated arm 15 has a first arm link 16 and a second arm link 17. The first arm link 16 is directly or indirectly connected at its inner end 16a facing the cloth shaft 11 via a joint device 19 to the support device 18 in an articulated manner. At its opposite end, the first arm link 16 is connected to the second arm link 17 via an intermediate joint 35. The second arm link 17 is connected to the lead bar 13 at its end facing the latter via a further joint device 34. Each articulated arm 15 is pre-tensioned in a known manner via a spring (not shown) into its extended position, i.e., into the maximum position P.sub.100, in which the cloth 12 is stretched as far as possible, as shown in FIG. 1.

[0053] The joint device 19 is shown in detail in FIG. 2. The first arm link 16 has, at its right end (as shown in FIG. 2) facing the joint device 19, two tabs 33 running in the longitudinal direction L of the first arm link 16 and spaced apart in the direction of the height of the first arm link 16, as well as a lateral projection 31 which carries an attachment 36 extending perpendicularly thereto, for example in the form of a screwed-in eyebolt. The tabs 13 and the lateral attachment 31 may be formed on a prefabricated adapter part which is rigidly attached to the first arm link 16.

[0054] 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 an attachment 38 is formed, for example in the form of a screwed-in eyebolt.

[0055] 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.

[0056] The bearing part 20 has a console-like attachment 24 which is designed such that it can be accommodated between the two tabs 33 of the first arm link 16.

[0057] In the console-like attachment 24, a bore 40 is formed, which is penetrated by a bolt 39 which is fastened to the tabs 33 of the first arm link 16. The bolt 39 in the bore 40 defines a pivot axis S about which the first arm link 16 can pivot relative to the bearing part 20 and its console-like attachment 24. In addition, the first arm link 16 can pivot together with the bearing part 20 about the tilt axis K relative to the arm support 37.

[0058] A rod-shaped or bow-shaped control part 21 is connected in an articulated manner at its lower end to the attachment 36 of the lateral projection 31 of the first arm link 16, forming a joint 22. The first joint 22 defines a first joint axis G.sub.1.

[0059] At its opposite upper end, the control part 21 is connected in an articulated manner to the attachment 38 of the adjusting lever 43, forming a second joint 23. The second joint 23 defines a second joint axis G.sub.2.

[0060] In a minimum position P.sub.0, in which the cloth 12 is wound up as far as possible on the cloth shaft 11 and the articulated arms 15 are retracted, the pivot axis S may coincide with a vertical V or assume an angle adjusted via the adjustment cable 43, as shown in FIG. 3. In this minimum position P.sub.0, the first arm link runs horizontally.

[0061] When the lead bar 13 is extended from the retracted minimum position P.sub.0 and the cloth 12 is stretched, the first arm link 16 pivots about the pivot axis S. The geometry of the first arm link 16, the control part 21 and the bearing part 20 are coordinated with one another such that the bearing part 20 additionally pivots about the tilt axis K when the first arm link 16 pivots. This causes the console-like attachment 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 lead bar 13 is extended and away from the cloth shaft 11. In an intermediate position shown in FIG. 4, in which the lead bar 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 lead bar 13 is fully extended and has taken its maximum position P.sub.100, the inclination of the pivot axis S relative to the vertical V has further increased, as shown in FIG. 5. In the maximum position P.sub.100 the deviation of the pivot axis S from the vertical V is in the range of 9 to 35.

[0062] The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are to be included within the scope of the following claims.