Sun Shade Device

Abstract

The invention relates to an awning device 1, 20, 40, comprising an awning 3 with at least one arch element 5 stabilizing an arch, at least one winding shaft 2 for winding up and off the awning 3, and at least one traction rope 4. To obtain an approx. central arch to the top to securely discharge water, according to the invention, at least one traction rope 4 is connected with a first region 6 of the awning 6, wherein this first region 6 is tightly tensioned between the winding shaft 2 and the traction rope 4 in the wound-off state of the awning 3 due to the tensile stress of the traction rope 4, and within this first regions 6, a section of at least one arch element 5 is arranged, the arch element being arranged there approx. in parallel to the winding shaft 2, the awning 3 comprises, at least on one side of the first region 6, a second region 7 into which the at least one arch element 5 extends, the second region being mounted on the at least one arch element 5 in a loosely hanging manner, and the at least one arch element 5 is, in the non-loaded state, essentially straight or comprises, at least in one section, an arch facing to the bottom, wherein the second region of the awning 3 comprises a smaller surface tension in the pulling direction between the traction rope 4 and the winding shaft 2 than the first region 6.

Claims

1. Awning device (1, 20, 40), comprising an awning (3) with at least one arch element (5) stabilizing an arch, at least one winding shaft (2) for winding up and off the awning (3), and at least one traction rope (4), characterized in that the at least one traction rope (4) is connected with a first region (6) of the awning (3) which is tightly tensioned in the wound-off state of the awning (3) and within which a section of the at least one arch element (5) is arranged, the awning (3) comprises a second region (7) at least on one side of the first region (6) into which the at least one arch element (5) extends, wherein the second region is mounted on the at least one arch element (5) so as to hang loosely, and the at least one arch element (5) is essentially straight in a non-loaded state or comprises an arch facing downwards at least in one section.

2. Awning device (1, 20, 40) according to claim 1, characterized in that the awning (3) comprises at least one additional piece of fabric (8) in the second region (7).

3. Awning device (1, 20, 40) according to claim 2, characterized in that a plurality of arch elements (5) and a plurality of additional pieces of fabric (8) are provided and arranged on one or both sides of the arch elements (5).

4. Awning device (1, 20, 40) according to claim 2, characterized in that an additional piece of fabric (8) is provided adjacent to the winding shaft (2).

5. Awning device (1, 20, 40) according to claim 2, characterized in that the additional pieces of fabric (8) essentially have a triangular shape.

6. Awning device (1, 20, 40) according to claim 1, characterized in that the awning (3) has a higher elasticity in the second region (7) than in the first region (6) at least in the pulling direction of the traction rope.

7. Awning device (1, 20, 40) according to claim 6, characterized in that the second region (7) has a unidirectional or bidirectional elasticity.

8. Awning device (1, 20, 40) according to claim 1, characterized in that an outer arch element (9) is embodied to be bending or has an arched shape.

9. Awning device (1, 20, 40) according to claim 2, characterized in that in the second region (7) of the awning (3), at least one spring element (11) extending essentially in the winding direction is embedded.

10. Awning device (1, 20, 40) according to claim 9, characterized in that the spring element (11) is embedded in the margin of the second region (7) of the awning (3).

11. Awning device (1, 20, 40) according to claim 9, characterized in that the spring element (11) consists of spring steel.

12. Awning device (1, 20, 40) according to claim 2, characterized in that the winding shaft (2) comprises a plurality of sections, wherein that section which is provided for winding up the second region (7) has a larger diameter than that section which is provided for winding up the first region (6).

13. Awning device (1, 20, 40) according to claim 2, characterized in that the winding shaft (2) comprises a plurality of sections, wherein that section which is provided for winding up the second region (7) is designed to rotate at a higher winding speed than that section which is provided for winding up the first region (6).

14. Awning device (1, 20, 40) according to claim 13, characterized in that the sections can be driven by a driving means which cooperates with one or several transmissions arranged within or outside the winding shaft (2), or that the sections can be driven by independent driving means.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In the drawings:

[0028] FIG. 1 shows an embodiment of the awning device according to the invention in a perspective view,

[0029] FIG. 2 shows the embodiment of the awning device according to the invention in a plan view,

[0030] FIG. 3 shows the embodiment of the awning device according to the invention in a front view,

[0031] FIG. 4 shows the first embodiment of the awning device in a side view,

[0032] FIG. 5 shows a second embodiment of the awning device in a top view,

[0033] FIG. 6 shows a third embodiment of the awning device in a top view,

[0034] FIG. 7 shows the third embodiment in a frontal view,

[0035] FIG. 8 shows the sections (fabric blanks) from which the awning of the third embodiment is formed in a detailed view,

[0036] FIG. 9 shows a first embodiment of a bending profile in a side view and an enlarged view,

[0037] FIG. 10 shows the first embodiment of the bending profile in straight shape,

[0038] FIG. 11 shows a second embodiment of a bending profile in a side view and an enlarged view, and

[0039] FIG. 12 shows the second embodiment of the bending profile in a bend shape in a side view and an enlarged view.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0040] FIG. 1 shows, in a perspective view, a first embodiment of the awning device 1 according to the invention, comprising a winding shaft 2, an awning 3, traction ropes 4 which are deflected over non-depicted end supports, a plurality of arch elements 5 and an outer arch element 9. The awning consists of a first region 6 and two second regions 7 which are disposed on either side of the first region 6. The transitions between the first region and the second regions 7 are indicated as lines 14. The arch elements 5 are arranged in the first region 6 of the awning 3 and extend on both sides into the second regions 7 which each comprise closer additional pieces of fabric 8. The additional pieces of fabric 8 are arranged on both sides of the sections of the arch elements 5 extending into the second regions 7. The arch elements 5 themselves in this embodiment have a non-arched shape in a forceless, i.e. non-loaded state, and they only arch due to the weight acting on the sections of the arch elements 5 extending into the second regions 7. This effect is achieved in the first region 6 of the awning 3 due to the tension of the first region 6 which is exerted by the traction ropes 4 on the one hand, and by the fact that the second regions 7 are not tightly tensioned on the other hand.

[0041] The outer arch element 9 is also non-arched in this embodiment in a non-loaded state and only assumes a shape arched to the top due to the tension within the first region 6, wherein the outer arch profile 9 may have a smaller cross-section to this end. It is, of course, also possible to use an outer arch element 9 which has a shape arched to the top already in a non-loaded state. It is furthermore possible to use a bending outer arch element 9. For the winding-up of the awning 3 onto the winding shaft 2 to be uniform, a spring steel wire is embedded in the margin 10 of every second region 7 which, due to its resilient elasticity, causes an increase of the winding diameter on the sections of the winding shaft 2 associated with the second regions 7. In the process, the spring steel wire is spirally wound around the winding shaft 2, wherein the winding layers of the spring steel wire do not rest upon each other due to the restoring force acting against its bending but are spaced apart from each other, which in turn results in the illustrated increase of the winding diameter.

[0042] In each one of the second regions 7, one spring element 11 is provided which is a spring steel wire and which increases the winding diameter in the second regions 7 so that these may be uniformly wound up together with the first region 6.

[0043] FIG. 2 shows the first embodiment of the awning device 1 according to the invention in a plan view. The additional pieces of fabric 8 are embodied in a triangular shape in the second regions 7 and are arranged on either side of the sections of the arch elements 5 projecting into the second regions 7, wherein the length of the additional pieces of fabric 8 increases in the winding direction, starting from the sides of the second regions 7 facing the first region 6 towards the sides of the second regions 7 facing away from the first region 6. Furthermore, in every second region 7, an additional piece of fabric 8 is provided adjacent to the winding shaft 2 and is also embodied in a triangular shape.

[0044] FIG. 3 shows a front view of the first embodiment of the awning device 1 according to the invention. The first region 6 is tightly tensioned due to the pulling force exerted by the traction ropes 4. The second regions 7 are not tightly tensioned due to the additional pieces of fabric 8 arranged therein, so that the sections of the arch elements 5 projecting into the second regions 7 move downwards due to the weight acting on them, and thus the arch elements 5 assume a shape arched to the top. The outer arch element 9 adapts to the arched shape of the first region 6, but it may also have an arched shape already in the non-loaded state. By the weight acting on the end sections of the arch elements 5, these move downwards whereby an arch of the arch elements 5 facing upwards is achieved. Point 15 acts as a center of motion for the movement 19 directed downwards and the movement 16 directed upwards. Both movements of each arch element 5 result from the weight acting on the end sections of the arch elements 5.

[0045] FIG. 4 shows the first embodiment of the awning device in a side view.

[0046] In FIG. 5, a second embodiment of the awning device 20 according to the invention is shown. In contrast to the first embodiment, it additionally has a spring angle 30 acting as a ramp for the arch elements 5. It consists of an elastic material, for example of spring steel, and supports the erection of the arch elements 5 when they approach the winding shaft 2, so that the first region 6 is relieved during the winding-up and vibrations of the arch elements 5 during the winding-up are moreover avoided. The spring angle may be fixed to a wall near the winding shaft 2. Furthermore, the second regions 7 comprise recesses facing the winding shaft 2.

[0047] FIG. 6 shows a third embodiment of the awning device 40 according to the invention. It only has one arch element 5 and a different shape of the second regions. The regions A, B, C, D, E and F are regions where sections of the awning overlap. In these regions, the different sections of the awning are sewn together.

[0048] FIG. 7 shows the third embodiment in a front view.

[0049] FIG. 8 shows the sections (fabric blanks) 27, 28, 29 from which the awning of the third embodiment is formed by sewing. The regions indicated by A overlap each other in the completed awning and are sewn together. The same applies to the regions indicated at B, C, D, E and F.

[0050] FIGS. 9 and 10 show a first embodiment of a bending profile 50 which may be used as an outer arch element 9. The bending profile consists of two straight legs 22 and a joint 21 connecting the two legs 22. In the front faces of the inclined legs 22 facing each other, a mount 23 for magnets 24 is arranged. The magnets 24 may be neodymium magnets which are particularly suited due to their high magnetization. The magnets 24 take care that the bent shape is maintained and the bending profile only assumes its straight shape again when it approaches the winding shaft during the winding process which may be supported by the aforementioned spring angles 30.

[0051] FIGS. 11 and 12 show a second embodiment of a bending profile 60 which may be used as an outer arch element 9. The bending profile 60 consists of two arched legs 62 and a joint 61 connecting the two legs 62. In the front faces of the inclined legs 62 facing each other, a mount 63 for magnets 64 is arranged.

LIST OF REFERENCE NUMERALS

[0052] 1 awning device [0053] 2 winding shaft [0054] 3 awning [0055] 4 traction rope [0056] 5 arch element [0057] 6 first region [0058] 7 second region [0059] 8 additional piece of fabric [0060] 9 outer arch element [0061] 10 margin [0062] 11 spring element [0063] 14 transition line [0064] 15 center of motion [0065] 16 movement [0066] 19 movement [0067] 20 awning device [0068] 21 joint [0069] 22 leg [0070] 23 mount [0071] 24 magnet [0072] 27 section [0073] 28 section [0074] 29 section [0075] 30 spring angle [0076] 40 awning device [0077] 50 bending profile [0078] 60 bending profile [0079] 61 joint [0080] 62 leg [0081] 63 mount [0082] 64 magnet