CA2823887A1 - Improvements to tension systems for flexible roofs - Google Patents

Description

Improvements to tension systems for flexible roofs Object of the invention The present invention, as expressed in this descriptive report, refers to a mechanism or settlement saver, tensioning materials of all types that are commonly used to build the structures that support the roof and does not lose its efficiency, even on very large roofs and it has been perfected in order to avoid the classic problems caused by the construction due to height.
The device incorporates within its own nature the versatility that allows you to make deductions from the physical laws of elasticity of the materials with a mechanical arrangement. The ability to retain and even vary its own linear geometry is scheduled for that through time and climatic variations keep its tension required to deal with the various natural forces that are a common plague to roofs.
This general design for roofs is flexible based on the fact that interlocking mainly through elastic coupling to the three elements that are composed, which are, a protective membrane that could be canvas, rubber for greenhouses or sheets of high strength plastic, ribs, and ropes or cables. That will lower the building costs for high quality large roofs. The improvements to tension systems for flexible roofs have been carried out in order to obtain numerous and significant advantages compared to other means existing in similar purposes.

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d,gthry IL invort011 Currently rooftops are conventionally integrated with a very high number of parts or components that are corked of simple bens Of rafters of heavy arid Expensive mtEri8i, even these roofs have the disadvantage of high cost materials used to support the roof and in the construction, more simple are the common tents, they are constrained by the need to make a very hasty or steep roof structure. As might be imagined, the large number of elements raises the cost of the finished roof, which also is increased by the amount of labor required for assembly of so many parts and in the case of the common tent, its nature limits its use to temporary sites.
With the purpose of suppressing and overcoming these and other disadvantages, it was thought in the development of improvements to tension systems for flexible roofing, which is intended to protect by means of this application.
Description of the Invention The device of the invention presents a new structure and mechanics of work able to be adapted in roofs of different sizes; all from a single model that will be able to overcome the forces that are generated by the nature of interlocking elements of these devices, without adding any additional weight on the protective membrane, it can perform the task of a permanent standing roof.

More specifically, the device of the invention is formed by a single piece of material, resistant to the weather, and its physical feature resistant to stretching or tension which in turn holds enough elasticity to maintain its shape, also ribs that are internal and external, these ribs vary in length to fit the curves and lines that define our third element which is comprised of tension ropes or tension cables.
To improve its function and to avoid possible separation of the parts that make up these roofs, it has been envisaged that the three elements are united within itself on a permanent basis, although you can incorporate inwardly insulating material such as fiberglass which is applicable with a mesh material to avoid separation of the fiberglass.
The function or mechanical device working is the following: due to the properties of rigidity that acquire the elements of its devise in its relative position of stretching are used as permanent roofing. By what has been said above, we can affirm that these features of simplicity have not been achieved in any other design because it is a device consisting of lust three elements that work more efficiently, than others formed by greater number of pieces or parts.
To complement the description that will be performed, in order to help a better understanding of the characteristics of the invention, the accompanying descriptive report on a set of plans based on figures in perspective; is easier to understand the innovations, advantages, and object of the invention.

Brief description of the drawings Figure 1, Is a plan of a canvas stretched on a totally smooth surface and large enough to cut it to the desired size of the roof. (dotted lines) Figure 2, Is a plan of the mechanics to mark on the canvas, the calculated curves for the ropes or cables.
Figure 3. Is also a plan that shows the proper way to mark the direction and final positioning of the solid elements or ribs made on the canvas, greenhouse oilcloth, or other flexible materials being worked with, Figure 4. Is a plan that displays the working material stretched to the desired position, and the solid elements or ribs distributed in a fixed position to the canvas, greenhouse oilcloth, or other flexible materials being worked with.
Figure 5. Is a consecutive plan that shows in this situation the ropes or cables are passed through the ribs, and are tensioned leaving additional rope or cable at both ends.
Figure 6. Are conventional perspectives of a solid straight type rib on the exterior part of the roof.
Figure 7. Are prospects of a conventional spinal or straight type rib.
Figure S. Is a conventional perspective of one of the sides of a rib positioned on its cable and clearly shows the situation in which they correspond to in the structure of a flexible roof.

Figure 9. ls a perspective view in which a flexible roof displays its two sectors that appear in its elevated open position, but this time showing only the solid elements or ribs located in FiRure 10. Shows a nersn FtC_ _Ve= view ryf thcs