US20190112832A1

US20190112832A1 - Modular canopy structures that can be fitted with a retractable roof, production methods, assembly methods and corresponding uses

Info

Publication number: US20190112832A1
Application number: US16/074,621
Authority: US
Inventors: Dominic Larin; Alain Bourdages
Original assignee: Lounge Factory Inc
Current assignee: Lounge Factory Inc
Priority date: 2016-02-04
Filing date: 2017-02-06
Publication date: 2019-04-18
Also published as: CA2990284A1; CA2990284C; WO2017132776A1; CA2920207A1

Abstract

The application relates to a canvas comprising:

- members of a first type, said members being inserted into the canvas and comprising, on each of their ends, a means of sliding inserted into a structure, the members having a sliding device that can modify the length of the members during the sliding,
- members of a second type which are inserted into the canvas, said members being flexible so as to allow formation of a flow curve,
- two attachment members to be inserted into the canvas and located on the ends of the canvas, said members comprising a device allowing the canvas to be maintained in the deployed state,
  the members of the first and second type being alternately arranged in parallel when they are inserted in the canvas, so as to form an “accordion” configuration.

The application also includes modular structures, means of attachment as well as assemblies thereof.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

The present patent application claims priority of the Canadian patent application no. 2,920,207 file on Feb. 4, 2016, which is incorporated by reference in its entirety.

FIELD OF THE INVENTION

This invention relates to a modular structure consisting of a small number of structural unit elements, each of the structural unit elements is comprised of at least one longitudinal groove with a similar profile, but potentially of different lengths. The modular structure is self-supporting or can be partially supported by the support of a supporting wall. This modular structure can be equipped with a folding roof to create a cover such as a canopy or pergola.
The present invention also relates to a unitary structural element having a particular profile ensuring multifunctionality and allowing the easy addition of other functionalities. This element, potentially of different lengths, allows creation of a modular and multifunctional structure, with the option of being completely self-supporting.
The invention also relates to a canvas for shade and protection against rain, with a particular form and configuration, which can be installed on a frame-type structure. The canvas is distinctive because of its particular shape, which is characterized by an arrangement of pleats and slopes reminiscent of an accordion.
The invention is also comprised of the modular structure of the invention furnished with at least one canvas of the invention.
The invention also consists of an absorption device allowing the smooth opening/closing of a canvas in a frame, when connected in a frame with lateral and interior grooves on at least two parallel sides of the frame.
The invention is also related to a modular structural assembly comprising at least two modular structures according to the invention and to a modular assembly of canopies comprising a modular assembly of canopies comprising at least two modular structures of the invention of which at least one of the modular structures includes a canvas.
The present invention also relates to a semi-automatic tension system for folded canvases, in particular for canvases of the type of the invention.
The present invention also relates to multifunctional fasteners which allow different removable accessories to be attached to one of the grooves of the modular structure.
The present invention also involves the methods to manufacture at least one of the unit elements of the invention, at least one of the modular structures of the invention, as well as the methods to manufacture at least one of the modular assemblies of the invention.
This invention also relates to the methods to assemble the modular structures of the invention equipped with a retractable or non-retractable canvas, as well as the methods to use the modular assemblies of the invention equipped with a retractable or non-retractable canvas.
The invention also relates to the uses of modular structures and modular assemblies of the invention, and in particular their use in the fields of temporary and permanent covers, decorative or for weather protection, garden shelters, pergola, gazebo, canopies, greenhouses, spa covers, removal spa covers, on frames, solarium, sun covers, rain covers, snow covers, sheds, outdoor kitchens, presentation kiosks, electric generator tents equipped with canvas comprising photoelectric cells, and survival tents in particular for disaster areas and for the army.

PRIOR ART

EP 2565342 describes a canopy which includes a canvas with a plurality of folds (4) substantially parallel that can be moved along a slide direction (Y) substantially orthogonal to the extension direction (X) of the folds (4), between at least one retracted position (A), in which the folds (4) are located near each other, and at least one extended position (B), in which the folds (4) are at least partially extended above the area to be covered (5). Each of the folds (4) is delimited by at least one bottom fold (6) and by at least two first folds (7) between which one drain channel (9) is defined which is oriented transversely to the slide direction (Y) of the canvas (3) and provided with at least one slope toward a lateral side (3′) of the canvas (3). The awning includes at least two pairs of tie rods (10′, 10″), including an upper part (10′) and a lower (10″ tie rod), attached at their ends to the awning support structure (2). The tie rods (10′, 10″), are preferably substantially extended in parallel and arranged one above the other in the slide direction (Y) of the canvas (3) at its side edges (3′). These are connected through sliding with the lateral ends of the first folds (7) with the upper connecting rods (10′) and with the lateral ends of the bottom folds (6) with the lower tie rods (10″). The tie rods (10′ and 10″) are spaced apart, when the cloth (3) is in a collected position (A), to a greater amount than when the cloth (3) is deployed (B) by an average distance creating elastic tension of locations (4) of the canvas in the said extended position (B).
AT 13584 describes an awning (15) with a membrane (16) that can be moved between a surface awning vault position (U) and a storage position (A) at least partially folded in one movement direction (B). It can be moved, with a guide mechanism (17), comprising upper guide rails (18) and upper tension elements (27) and lower tension elements (28), in which the upper tension elements (27) are connected at the two ends equipped with an upper slide (20) that is mounted along one of the upper guide rails (18).
EP 2 284 330 describes a folding awning (1) comprising at least one pair of cross members (5a, 5b), being movable along at least one pair of guides (4) between a first, gathered, position and a second, extended, position, and a canvas (6) extending between said pair of cross members (5a, 5b) and secured thereto, said canvas comprising at least one drainage section (11a, 5b) in which the length of said canvas (6) in a plane (XY) transverse to the pair of cross members (5a, 5b) is greater than the distance between said cross members (5a, 5b) so as to form a drainage channel (12) between the cross members (5a, 5b), and the awning (1) comprising, at least one means of tensioning (20) secured to said canvas (6) at one or more securing points (21) in the region of said drainage channel (12), so as to place the canvas (6) under tension in at least the second, extended, position.
FR 2 840 339 describes a folding modular structure for a cover such as a terrace or pergola. The modular structure consists of a sealed tarpaulin (1) on a support frame (2), extended according to its width (2a) with a constant length (2b). The tarpaulin is folded into pleats (1a-1b) to provide alternative slopes along the width so as to allow for alternating folding of the pleats and the dispersal of rainwater on each side of the frame width, which is placed horizontally. The tarpaulin has eyelets (4) through which pass support cables (3) held along the length of the frame allowing the tarpaulin to slide. Mountings (5a) are connected to a slide (5b) on each of the widths (2a), so that the tarpaulin slides along the cables (3) and the slides (5b) allow it to be spread out
There was a need for a modular shelter structure, in particular one that is foldable and lacks at least one of the shortcomings of structures of prior art

SUMMARY OF THE INVENTION

One object is an accordion-type folding canvas comprising:

- a plurality of members of a first type, said members to be inserted into said canvas, said members of the first type comprising, at each end, a means for sliding or moving to be inserted into a structure. The said members of said first type having a sliding device so as to be able to modify their length during said sliding or movement, in this way preventing blocking.
- a plurality of members of a second type, said members to be inserted into said canvas, said members of the second type being flexible so as to allow formation of a flow curve when said canvas is extended.
- two attachment members, for inserting into the canvas and located on the ends of the canvas, said attachment members comprising a device allowing the canvas to be maintained in a deployed position,

said members of the first type and second type to be alternately arranged, in parallel, when they are inserted in the canvas, so as to form an “accordion” configuration, when the canvas is in a folded or extended position, said attachment members replacing said members of the second type in alternation at said ends of the canvas.
Another object is an accordion-type folding canvas comprising:

- a plurality of members of a first type, said members to be inserted into said canvas, said members of the first type comprising, at each end, a means of movement to be inserted into a structure, the said members of said first type having a sliding device so as to be able to modify their length during said movement,
- a plurality of members of a second type, said members to be inserted into said canvas, said members of the second type being flexible so as to allow formation of a flow curve,
- two attachment members, to be inserted into said canvas and located on the ends of the canvas, said attachment members being attached in a fixed manner to a structure in order to maintain said canvas in a deployed position, and

said members of the first and second types to be alternately arranged in parallel when they are inserted in the canvas, so as to form an “accordion” configuration.
Another object is a structure comprising:

- a canvas; and
- at least two support members, said support members each comprising at least one groove, said groove to receive said means of sliding or moving of said members of said first type of said canvas in order to maintain said canvas and allow it to move between a folded position and an extended position.

Another object is a structure comprising:

- a canvas, as defined in the present application; and
- at least two support members, said support members each comprising at least one groove to receive said means of sliding or moving of said members of the first type of said canvas in order to maintain said canvas and allow it to move between a folded position and an extended position.

Another object is a means of attachment comprising:

- a screw which is generally rectangular comprising two rounded corners at the ends of one diagonal and two right angle corners at the ends of a second diagonal;
- a support comprising a hole for a screw, said screw to be screwed to said nut, passing through said support, so as to attach the object between said support and said screw; and
- a strip to be positioned between said screw and said support, said strip comprising a hole for said screw, said strip being of a size to prevent said support from rotating when said screw is introduced into said support and into the nut

Another object is an assembly comprising:

- at least one support member, one cross member and/or a vertical rod described herein and
- at least one means of attachment described herein, said nut to be inserted in said groove of said support member, cross member and/or vertical rod, between two edges on either side of an opening in said groove, so as to attach the two edges between said nut and said support when said screw is screwed into said nut, said first diagonal of said nut being shorter than the width of said groove, said second diagonal of said nut being longer than the width of said groove.

BRIEF DESCRIPTION OF FIGURES

FIG. 1 represents a perspective view of a canopy device according to one embodiment of the invention, with the canvas extended.

FIG. 2 represents the perspective view of the canopy device of FIG. 1 with the canvas folded.

FIG. 3 represents the perspective view of the canopy device of FIG. 1 without the canvas.

FIG. 4 represents the view of the face and underside of the canopy device of FIG. 1 without the canvas.

FIG. 5 represents a perspective view of a modular assembly of the invention system of the invention, consisting of 2 devices of the invention, as represented in FIG. 1 and in adjacent mode and sharing some elements of the structure.

FIG. 6A: represents a perspective view of a modular frame according to one embodiment of the invention, equipped with connectors at the corners of the invention.

FIG. 6B: represents a perspective view of the modular frame of FIG. 6A and equipped with corner connectors according to another embodiment of the invention.

FIG. 7: represents the view of the face and underside of the canopy device of FIG. 4 with the canvas extended.

FIG. 8: represents the side view and the underside of the canopy device of FIG. 1 with the canvas extended.

FIG. 9: represents the view of the top and the perspective of the canopy device of FIG. 8 with canvas.

FIG. 10: represents the view of the top and the perspective of the canopy device of FIG. 8 with a taut canvas.

FIG. 11: represents a perspective view of a modular assembly of the invention, consisting of 2 modular structures of the type represented in FIG. 1, and in adjacent mode and sharing some elements of the structure and with the 2 canvases extended.

FIG. 12: represents a detailed view of the tension mechanism of the canvas and its elementary components in a perspective view according to the embodiment of FIG. 9.

FIG. 13: represents a detailed view of the tension mechanism of the canvas and its elementary components in a perspective view according to the embodiment of FIG. 12 and with the lateral elements (44) playing the role of return springs (elastic) for semi-automatic closing of the canvas.

FIG. 14: represents a detailed view of the first embodiment of the mechanism of one of the components of the canvas according to FIG. 13 and its lateral tension absorption device for the canvas.

FIG. 15: represents a detailed view of a second embodiment of the mechanism of the canvas according to FIG. 13 and its lateral tension absorption device for the canvas. Representation of the fastening tube (47) at the canvas extremities. This is not a variant of FIG. 14.

FIG. 16A: represents an exploded view of the 3-dimensional connection device according to the invention and the elements with which it will be connected.

FIG. 16B: represents an exploded view of a 3-dimensional connection device according to another embodiment for the invention and the elements with which it will be connected.

FIG. 17A: represents the detail of the exploded view of the 3-dimensional connection device of FIG. 16A and the elements with which it will be connected rods/elements which will make its connection.

FIG. 17B: represents the detail of the exploded view of the 3-dimensional connection device of FIG. 16B and the elements with which it will be connected rods/elements which will make its connection.

FIG. 18A: represents an exploded view of the 4-dimensional connection device according to the invention and the elements with which it will be connected.

FIG. 18B: represents an exploded view of a 4-dimensional connection device according to another embodiment for the invention and the elements with which it will be connected.

FIG. 19A: represents an exploded view of the 5-dimensional connection device according to the invention and the elements with which it will be connected.

FIG. 19B: represents an exploded view of a 5-dimensional connection device according to another embodiment for the invention and the elements with which it will be connected.

FIG. 20: represents a detailed view of the tension mechanism of the canvas and its elementary components, in a perspective view, according to the embodiment of FIG. 12 and without the lateral elements (44) and without the tension mechanism.

FIG. 21: represents a perspective view of the detail of a canopy device according to one embodiment of the simplified structure and supported by a wall. Attachment to the ground using the same piece as the wall attachment is also shown.

FIG. 22: represents an interior, perspective view of one absorption element inserted in the groove of one of the structural elements, as well as a detailed view, inverted and exploded, of the end of the absorption element

FIG. 23: represents the partial view of the top (FIG. 23A), the three-stage action of the guiding and absorption mechanism and without the canvas. The view also represents the lateral absorption mechanism in folded mode (FIG. 23B) and in extended mode (FIG. 23C).

FIG. 24: represents a truncated side view (FIG. 24B), and truncated perspective view (FIG. 24A) of the detail of the absorption head/attachment bar of the sides of the canvas to the side canopy structure in folded mode. Representation of the absorption system/sliding casters which also act as fasteners between the structure and the canvas. Variant of the current system of absorption tubes that use a play between the caster and the screw which hold it in place, thereby allowing sliding of the caster.

FIG. 25: represents the detail of the absorption head/attachment bar of the sides of the canvas alone (FIG. 25A) and positioned in the canopy structure (FIG. 25B) in folded mode. Variant of the current system which uses a different, larger caster which provides play between the form and the caster which will absorb twisting.

FIG. 26: represents a means of fastening (rapid attachment system) according to a embodiment of the invention in its assembled mode (FIG. 26A) and its dismantled mode and exploded view (FIG. 26B).

FIG. 27: represents a top view of a fastener according to the invention positioned with the edges of the groove of a profile of the invention with 4 grooves, one per face (FIG. 27A) and represents the same fastener locked to the same sides of the form groove (FIG. 27B).

FIG. 28: represents a perspective view of the accordion-type canvas according to one embodiment of the invention and the detail of one of the central folds of the canvas.

FIG. 29: represents a sectional view and top view of the detail of the profile according to 6 different embodiments.

FIG. 30: represents a top view and detail view of the profile with hidden profiles shown in dotted lines used to illustrate a preferential method of the invention in the description of the invention.

FIG. 31: represents a perspective view of a canopy device according to another embodiment of the invention, in which the latter is provided with a screen.

FIG. 32: represents a side view (FIG. 32A) of an accordion-type canvas according to one embodiment of the invention and a detail view (FIG. 32B) of one of the central folds of the canvas.

FIG. 33: represents a perspective view of the accordion-type canvas according to one embodiment of the invention and the detail of one of the central folds of the canvas.

FIG. 34: represents a view of the face of a screw (FIG. 34A) which is to be inserted in the groove of the profile as well as a sectional and top view of the detail of the profile (FIG. 34B) according to one embodiment of the invention.

FIG. 35: represents a side view and perspective view (FIG. 35A) and exploded view (FIG. 35B) of a means of attachment comprising a removable notch, according to another embodiment of the invention.

FIG. 36: represents a side view and perspective view of the means of attachment comprising a removable notch according to FIG. 35 which retains an attachment member (snaphook) of a canvas.

FIG. 37: represents a frontal view and detail view of the canvas kept in extended position through the means of the attachment of FIG. 35.

FIG. 38: represents a top view and perspective view of a flat canvas held in a taut position by an attachment mechanism comprising an eyelet according to another embodiment of the invention.

GENERAL DEFINITION OF THE INVENTION

Introduction
The invention is a structure consisting of a minimized number of unit elements constituting the structure after assembly. The constituting unit elements, which have the advantage of a constant rectangular or square section along their length, include in one of its sides at least one interior groove which provides the invention with a plurality of options and/or functionalities that connects with at least one of the faces of the unit element. The structure of the invention is modular, flexible, self-supporting or can be attached to a support, such as a wall.
The modularity of the structure allows for various configurations and positions.
Corner connectors, in particular in the form of a cross and/or a T allow the structure to have different sizes and shapes. Through the originality of their structure, these corner connectors, potentially with decorative and/or protective elements which are added to them, also constitute an object of the invention.
The grooves located in the unit elements allow for positioning of the different decorative and/or functional options/accessories, in particular options/accessories of a type that can be retrofitted, easily or not.
The structure of the invention is easy to install, requires no specialized labour and can be installed in a few minutes.
The corner connectors have the advantage of being structurally reinforced and do not necessarily require the addition of additional stays, particularly to reinforce the structure.
Several types of roofs and curtain walls and/or privacy panels can be easily installed on the modular structure of the invention, whether they are roofs, walls or curtains that are permanent rigid types, flexible or retractable, manual or automatic.
Opening and/or closing the retractable roof can, for example, be done by turning a crank, pulling a cable or by hand.
In the case of a roof positioned and connected with the structure, it is possible to add to the structure an automatic roof closing and/or opening system, according to the invention, e.g. by cable and counterweight, elastic spring, rubber or bent fibreglass and canvas design, whether hidden by the structure or not, or automatically or manually locking at one of the 2 ends or both.
The curve of the roof discharges water from each side or from just one side. A water-collection gutter can be installed optionally. The roof, whether retractable or not, can be dismantled in several sections for compact or maximum packing, also being an original aspect of the invention. The caster system, with or without ball bearings, slides the length of the structural groove.
A side slide system which can be disassembled, provided with rigid support rods, which can fit together or not, also part of the invention, prevents the system from getting jammed during opening and closing movements. The absorption by the rods and/or screws and/or tubes can be operated in combination or independently to correct the trajectory of the canvas.
The adjusted or permissive casters prevent the rod from becoming locked in the groove. The guide cable, runner or rigid rod ensures a functional and/or aesthetic straight line of the canvas.
A first object of the invention consists of a self-supporting structure and by unitary structural elements of the base structure.
The self-supporting structure is comprised of profiles, created, e.g. through aluminum extrusion. The self-supporting structure can in an advantageous embodiment of the invention use only one type of profile to create its entire structure, this profile can potentially vary in terms of its length to accommodate the use desired (feet, beams, cross-elements, reinforcements, supports) The profile uses e.g. a square or rectangular form and has the advantage of a groove, preferably central on each of the large side faces of the profile.
The groove acts as a support element that can receive the options and assemblies anticipated as additions to the structure, being developed specifically for this use. The groove used for an example as illustrated in the preferred embodiment below, a T-insertion principle which allows the hardware developed as part of the project to serve as support
Nevertheless, the necessary use of this groove does not limit the shape, different principles of grooves can be used in the same way with a different profile.
The structure is assembled with a corner principle (connectors) which serve as attachment point between the main profiles of the structure. These original connectors also constitute an aspect of the invention. This assembly (mechanical-welding assembly of the connectors) supports the horizontal beams of the structure while fitting into the feet of the structure. Assembly of the connector has the advantage of being hidden by an ornamental cap which also maintains aesthetics, e.g. cubic, of the structure.
The connector, which contains at least as many rods as directions to be connected with another structural element according to a preferred embodiment is assembled so as to orient its rods in the X, Y and Z axial directions. The rods are then inserted in the centre of the main profile of the structure. According to a preferred embodiment, insertions drawn through each of the rods have the advantage of allowing mechanical assembly of the profiles to the connectors. Different variants of connectors are also part of the invention, invented to allow connection of several modular structures of the invention which would have the advantage of using the same support point (foot). Versions with 3, 4 and 5 branches have been developed to allow multiple arrangements, called assemblies with regard to this invention.
The modular structure of the invention, also called principle structure on which options/accessories are grafted, comprises a very limited quantity of parts, which facilitates inventory management and manufacture. The profile and connectors were developed so as to allow as many arrangements as possible without any modification to the parts, no customized or specialized manufacture is required for a certain type of structural arrangement. The project is entirely modular.
A second aspect of the invention consists of a canvas for shade and protection against rain which can be installed as an option on the structure. The canvas is distinctive because of its particular shape which is characterized by an arrangement of pleats and slopes reminiscent of an accordion.
Structured, e.g. by tubes with sliding casters that are inserted in the upper tips of the accordion as well as by flexible rods that are installed in the lower tips, the canvas offers some rigidity and consistency in shape. The sliding aspect of the canvas allows it to be opened and closed, providing flexibility of use.
In a preferred embodiment, bottom casters have the advantage of sliding within the groove of the main extrusion profile to provide its opening/closing movement The flexible rods inserted in the lower tips of the canvas have guide heads, preferably of eyelet type which slide on a taut cable so as to guide the canvas and avoid twisting as much as possible during movement The flexible rods inserted in the lower tips also serve to structure the canvas with a flow curve that guides water to the sides of the structure to prevent accumulation and ensure the structure is completely waterproof.
Following an advantageous embodiment, the canvas can be entirely assembled and dismantled, and following an advantageous method assembled by inserting tubes and rods in pockets provided for this, to then be slid into the structure which requires no dismantling. Since the project is based on a modular principle, options must be installable after assembly of the structure. The sliding principle of the canvas could function following other cable principles, such as weighted, or a crank system and benefit from a gutter system to collect water that flows thanks to the flow curve.
A third object of the invention consists of a self-supporting or non-self-supporting modular structure according to object 1 of the invention equipped with at least one retractable or non-retractable canvas and by a self-supporting structure according to object 1 of the invention and equipped with at least one canvas according to object 2 of the invention.
A fourth object of the invention consists of an absorption device permitting the smooth opening/closing of a canvas, an “anti-twist” device. This device offers a twist margin that will not block sliding of the guide elements in the lateral parallel grooves of the upper frame of the modular structure. For example, if the guide and sliding elements are casters below, blockage of the casters is avoided when the canvas has been operated in an uneven manner. The absorption principle is characterized by sliding tubes at the ends of the bottom tubes on which casters are installed, the latter permit the necessary extension of the sliding tubes during twisting to avoid any blockage. The absorption device is advantageously installed on the canvas prior to installation on the structure. The advantage of the device is in its simplicity of assembly, limited number of parts and autonomous function which does not require particular maintenance or use. Use of the product is intuitive for the user with simple devices for use.
This device can also be based on a different principle, such as long screws that allow side movement of the casters and which would not require a sliding tube. According to another embodiment of the invention, use of larger casters offering more play once installed in the groove of the main profile.
A fifth object of this invention is a modular structural assembly and a modular assembly of canopies.
The invented principle of modularity allows creation of different variants of the cover.
The concept starts with a base structure which is the ALFA composition. This composition of tubular and connector length is the basis of the shape and functionality of the product This composition of parts can create infinite lengths and different bi- and tri-directional geometric forms. All that is needed to obtain the desired final product, is to add the desired options. Each connector piece must advantageously be installed in a homogeneous fashion, i.e. the connectors of the invention must preferably be attached with the same type of nuts, but especially advantageously at the same level. For example, the foot of a gazebo which is attached to the ground can also be installed on the horizontal beam and attached to a wall. For example, a foot serving as ground anchor can also be used instead of two of the four corner connectors, being inserted at the ends of the horizontal beams and then anchored in a vertical support (such as a wall). Some connectors of different shapes can be installed at any end of the structure and therefore extend the structure itself in several different directions.
Each option/accessory designed must be easily installed on the modular structure both with the initial installation and as a retrofit This means, allow in the context of the invention, installation of a new option or a new type of roof on the base structure without altering the components of the structure and even without taking it apart.
Each option must be therefore conceived in this way. Moreover, each option must be able to be shipped by courier and therefore must be maximized for shipping to the consumer. The product can be installed temporarily since it is very quick to install, or permanently since the product is of commercial quality.
A sixth object of this invention consists of tension mechanisms for retractable canvases.
The canvas is comprised of a waterproof or non-waterproof fabric, with aluminum rods as support, and fibreglass rods providing shape and body to the canvas. The aluminum tubes have casters at the ends and roll in the tube cavity. Opening of the canvas and its closing can be done in several ways.
Side curtains or side screens: to block the view or the wind or simply for aesthetics. Can be opened manually, automatically with a remote, or with a press button or controlled by a cell phone or motor.
Manual: by hand, detach the canvas and manually slide the canvas. With the anti-blocking system, the support rods do not have to be perfectly aligned in parallel. The rods will still slide.
Opening and closing by pulling or rolling a cable: one or several cables can be installed in the structure and activated using a counterweight or spring hidden or not in the structure. The action of pulling or rolling a cord can both open and close in the 2 cases.
A seventh object in this invention consists of multifunctional fasteners
With the goal of adapting several options to the structure, hardware was developed specially for the structure. The attachment system is designed to adapt to all attachment and installation needs and defines the shape of the principal profile of the structure. In the case of the retractable canvas, the fasteners act as supports for the guide cable tension system.
Fasteners consist of a right-angled extrusion profile which is installed on the outside of the groove of the principal profile and act as a support for the options. This support is maintained by a T-nut which is inserted into the groove and, once the assembly is screwed, makes a one-quarter turn to become blocked in the groove, providing pressure which fixes it in place while the screw is tightened. The advantage gained by this principle is the possibility of inserting fasteners into the groove of the structure without the latter being disassembled. The fastener is also equipped with an anti-rotation strip which allows it to stay parallel to the groove at all times, thereby avoiding sliding from starting.
Projected variants:
Nut without rotation which must be inserted by the ends of the structure profiles
Permanent hardware requiring drilling in structure profiles
Motorization: with the help of a motor, closing or opening of the roof and/or side curtains can be done by a manual switch, remote control or cell phone applications.
An eighth object of this invention consists of all processes to manufacture at least one of objects 1 to 7 of the invention as previously defined. Among these processes, in particular those utilizing known techniques of prior art, such as riveting, screwing, connecting, gluing, welding, clipping, etc.
A ninth object of this invention consists of the use of objects 1 to 7 of the invention as previously defined.
As examples, but not limited to, the use of object 1 as: temporary shelters, garden shelters, pergola, gazebo, greenhouse, spa shelters, removable spa cover, with structure, solarium, sun shades, rain shelters, snow shelters, shed, outdoor kitchen, presentation kiosk, electric generator tent equipped with canvas comprising photoelectric cells, and survival tent in particular for the army.

Advantages of Objects 1 to 7 of the Invention

Advantages noted with regard to previous art are the notable simplification of the system and mechanisms involved, in particular with regard to the following points:

- assembly simplified to the point that anyone can rapidly assemble it without problems;
- quick dismantling;
- no specialized labour required;
- the structure can be shipped by courier and is very compact;
- the structure can be ordered in an infinite number of configurations;
- the structure can be modified through retrofitting even several years after set-up
- the system can evolve over time by changing certain components;
- users can change the parts themselves and make repairs as needed;
- for the same model chosen by a client, dozens of versions are possible, e.g. a rigid roof for which the run-off slope can be chosen, components of side walls that can be transformed into handrails;
- side grooves can be used for several options, such as a lighting system with lights, water spray system, for gutters, to hide wires, provide a guide for a slide system;
- universal fasteners, combined with the structure grooves allow for the solid attachment of any kind of product, part or other structure, they are used to solidify the structure, hold cables, install custom components;
- depending on the options chosen, the structure can completely change style, e.g. from contemporary to Victorian, with the same base structure;
- resist very strong winds, perfect for the seashore;
- winter preparation of the product is very quick, taking less than 15 minutes;
- can handle intensive use such as commercial type and is refined enough for the residential market; and
- depending on options, can tolerate rain, glaze ice, and snow loads.

For example, said attachment members replace said members of the first type or second type in alternation at said ends of the canvas.
For example, said members of said first type are upper members and said members of said second type are lower members.
For example, said sliding device includes two cylinders, inserted one into the other.
For example, said sliding device includes two cylinders, inserted one into the other so that, if one end of one of said members of the first type is moved in an uneven fashion at its opposite end in relation to said structure during movement of the canvas in relation to said structure, said member of the first type will get longer thanks to said sliding device, thereby preventing blockage during movement of said canvas.
For example, said means of sliding or movement include casters.
For example, said members of said second type are connected together by at least one guide, to one of said ends of said members of second type, at least one of said guides being arranged in a fashion generally perpendicular to said members of said second type.
For example, said members of said second type are connected together by two guides, one at each of said ends of said members of second second type, said guides being arranged in a fashion generally perpendicular to said members of said second type.
For example, said guides are cables inserted into eyelets located on said ends of said members of said second type.
For example, said support members comprise two support members connected together by two cross members in a fashion generally parallel to said members of the first and second type, said support members and said cross members forming a frame that maintains the canvas.
For example, the structure also includes at least two vertical rods allowing retention of said frame and said canvas at a desired height.
For example, said cross members each include at least one groove.
For example, said vertical rods each include at least one groove.
For example, at least two of said support members are interchangeable with said cross members.
For example, at least two of said support members are interchangeable with said cross members or with at least two of said vertical rods.
For example, said cross members are interchangeable with at least two of said vertical rods.
For example, said support members, said cross members and said vertical rods are to be connected together using connectors, said connectors having branches to be inserted into cavities of said support members, said cross members and/or said vertical rods, said connectors to be located at the corners of said frame and to be sized so that the branches are hidden inside said support members, said cross members and/or said vertical rods when they are inserted into them.
For example, said connectors have three branches, one branch being positioned vertically and two branches being positioned horizontally, and said horizontal branches forming 90-degree angles between them and with said vertical branch.
For example, said connectors have four branches, one branch being positioned vertically and three branches being positioned horizontally, said horizontal branches forming 90-degree angles between them and with said vertical branch.
For example, said connectors have five branches, one branch being positioned vertically and four branches being positioned horizontally, said horizontal branches forming 90-degree angles between them and with said vertical branch.
For example, the structure includes a tension mechanism comprising a system of cables, pulleys and counterweights to permit said movement between a folded position and an extended position.
For example, said nut includes at least one surface allowing engagement by friction with an object to be fastened by said means of attachment.
For example, said support includes at least one surface allowing engagement by friction with said object to be attached by said means of attachment.
For example, said support includes an eyelet to receive a coupling element
For example, said coupling element is a hook, a screw and a nut or a snaphook.
For example, said means includes, at least one removable notch to hold and support an object and to be attached to said support
For example, said support defines a notch to hold and support an object
For example, said strip includes at least one central part and at least one fin sized to be next to a lateral part of said support.
For example, said strip includes at least one central part and two fins located at two opposite ends of said central part, said fins forming a 90-degree angle with said central part and sized to be next to a lateral part of said support.
For example, said support has an L shape.
For example, said first diagonal is shorter than said second diagonal.
For example, said nut of said means of attachment is sized to allow a 90 degree rotation in only one direction in said groove when the screw is inserted into the nut and the nut is inserted into said groove.
For example, the assembly also includes a canvas described herein
For example, the assembly is also comprising a canvas described herein, said canvas to be maintained in said extended position in said frame through said device to be attached in a removable fashion to at least one means of fastening to be inserted into said groove of said support and cross members.
Another object is a modular structure comprising an upper part, self-supporting and in the shape of a rectangular frame formed of 4 structural unit elements joined 2 by 2 at their end by a corner connector, said upper part being supported by at least 2 feet, preferably by at least 4 feet, each of the feet secured by the connector of the corner of the frame of the upper part, each of the 4 elements and the rectangular frame having a rectangular orthogonal section and at least 2 rods forming the rectangular frame and substantially parallel to each other, having a slide groove on at least one part of the face opposite the face of the second rod and facing the interior of the rectangular frame.
For example, at least one of the structural unit elements includes a groove on at least one face, preferably on at least 2 faces, advantageously on at least 3 faces and more advantageously on at least 4 faces.
For example, the structure includes a rigid or non-rigid canvas, folding or not, connected to at least 2 of the structural unit elements of the modular structure.
For example, the structure comprises:

- a) a number n of identical central unit elements, each of the central elements consisting of 2 identical sheets in a substantially rectangular form with 4 ridges, 3 of the ridges being straight and one of them substantially concave and comprising the connecting with a canvas of another adjacent central unit element, of identical length, accomplished by a summit and connecting with an adjacent element at the base with a V-shaped section and of variable size on the length of the element having a concave shape at the summit, each of the 2 points of the concave ridge being connected with a steel cable on the sides and to its summit by a metallic guide ring; the non-concave base of a canvas connected with the base of an adjacent canvas by a rod, each end of this rod penetrating into the internal groove configured for it to slide into;
- b) 2 end elements adjacent to the rectangular frame each consisting of a rectangular canvas, one of the sides being this rectangular canvas connected at the ridge of the adjacent central element and the other ridge connected at 2 support feet;
- c) the bars being connected with the slide groove so as to have a bit of play to avoid blocking and to slide into the groove and guide the canvas when it is moved (manually);
- d) preferably, the guide cable being connected with 2 support feet and at a height located near the support point (self-adhesive type cable fastener system).

Another object is a modular structure consisting of a small number of structural unit elements comprising at least one longitudinal groove, each of the structural unit elements having a profile, preferably similar, but potentially of different lengths.
For example, the modular structures are self-supporting or can be partially supported by a supporting wall type of support.
For example, the modular structure is equipped with a folding roof to create a cover such as a canopy or pergola.
Another object is a unitary structural element with a particular profile ensuring multifunctionality and allowing the easy addition of other functionalities; this unit element, potentially of different lengths, allows creation of a modular and multifunctional structure.
Another object is a canvas for shade and protection against rain, with a particular form and configuration, which can be installed on a frame-type structure, said canvas being characterized by an arrangement of pleats and slopes reminiscent of the accordion principle.
For example, the modular structure is equipped with at least one canvas described herein.
Another object is an absorption device allowing the smooth opening/closing of a canvas in a rectangular frame, when connected to said rectangular frame having lateral and interior grooves on at least two parallel sides of the rectangular frame.
Another object is a rectangular frame supplied with an absorption device described herein.
Another object is a semi-automatic tension mechanism for canvases comprising a system of cables and pulleys or springs/elastics that apply a closing force.
Another object is a modular structure and a modular structure for canopies, comprising an absorption and/of guidance device described herein and/or a semi-automatic tension mechanism described herein and/or a means of attachment described herein.
Another object is a modular structure assembly and a modular assembly of canopies, comprising an absorption device and/of described herein and/or a semi-automatic tension mechanism described herein and/or a means of attachment described herein.
Another object is a process allowing manufacture of at least one of the modular structures of the invention described herein, as well as the processes to manufacture at least one of the modular assemblies described herein and at least one modular element described herein.
Another object is a use method of modular structures described herein, provided with a retractable or non-retractable canvas.
Another object is a use method of modular structures described herein, or use method of modular assemblies described herein, said structures and said modular assemblies provided with a retractable or non-retractable canvas.
Another object is a use method of modular structures described herein or a use method of modular assemblies described herein, and in particular their use in the fields of temporary shelters, garden shelters, pergola, gazebo, greenhouse, spa shelters, removable spa cover, with structure, solarium, sun shades, rain shelters, snow shelters, shed, outdoor kitchen, presentation kiosk, electric generator tent equipped with canvas comprising photoelectric cells, and survival tent in particular for disaster areas and by the army.
For example, the use is as a shelter against bad weather and as a canopy.
Another object is a modular structure comprising an upper part, self-supporting and in the shape of a rectangular frame formed of 4 structural unit elements joined 2 by 2 at their end by a corner connector, said upper part being supported by at least 2 feet, preferably by at least 4 feet, each of the feet being connected by the connector of the corner of the frame of the upper part, each of the 4 elements and the rectangular frame having a rectangular orthogonal section and at least 2 rods forming the rectangular frame and substantially parallel to each other, having a slide groove on at least one part of the face opposite the face of the second rod and facing the interior of the rectangular frame.
For example, at least one of the structural unit elements of the modular structure includes a groove on at least one face, preferably on at least 2 faces, advantageously on at least 3 faces and more advantageously on at least 4 faces.
Another object is a manufacturing process of a canvas described herein.
Another object is a manufacturing process of a support member, a cross member or a vertical rod described herein.
For example, said support member, said cross member and/or said vertical rod are formed by extrusion.
For example, said support member, said cross member and/or said vertical rod are formed by aluminum extrusion.
Another object is a manufacturing process of a nut, a support member, a strip or a screw described herein.
For example, said nut, said support, said strip and/or said screw are formed by extrusion.
For example, said nut, said support, said strip and/or said screw are formed by aluminum and/or plastic extrusion.
Another object is an assembly process of the structure described herein, comprising:

- inserting said members of a first type, of the second type and fasteners in said canvas;
- fastening said means of sliding or moving to each end of said members of a first type;
- inserting each of said means of sliding or moving in said groove of said two support members on both sides of said canvas;
- connecting said support members to said cross members in order to form said frame; and
- connecting said support to said vertical rods,

in which said support members, said cross members and said vertical rods are connected together inserting said branches of said connector in said cavities of said support members, said cross members and said vertical rods.
For example, the assembly process also includes attaching the support fastener described herein, to said support member, cross member or vertical rod, comprising:

- inserting said nut in said groove of said cross bar or said vertical rod, between said edges on either side of said opening of said groove, and
- attaching said support by screwing said screw through said strip, said support and said nut until said nut rotates 90 degrees and is locked in said groove so as to tighten said edges between said nut and said support.

For example, the assembly process includes attaching a coupling element described in the present application.
For example the assembly process includes the implementation of the assembly by known assembly means/methods.
For example, means of assembly are chosen among packing, screwing, riveting, welding and gluing.

DESCRIPTION OF A PREFERENTIAL EMBODIMENT OF THE INVENTION

The following embodiment is given only as a matter of examplification only and does not constitute any sort of limitation to the invention in its generalities.
The parts of the structure and its mechanisms of action are identified by number and listed in the following correspondence table:


Number	Parts	Description

3	Fastener with notch	Fastener comprising a notch to receive a
		canvas attachment member
4	Washer	Nut washer to support pressure from a screw
5	Notch	Notch to hold and support an object
6	Side screens	Side screens that provide shade, a windbreak
		or aesthetics
7	Canvas tension mechanism	Tension mechanism for the canvas return
8	Folds	Folds of the canvas that provide the
		accordion aspect
9	Slopes	Slopes generated by the folds that define the
		accordion aspect
10	Return cable	Return cable that applies a closure force on
		the canvas
11	Wall	Attachment wall for anchoring against the
		structure
12	Upper tips (canvas)	Upper points of the canvas structured by
		sliding tubes
13	Lower tips (canvas)	Lower points of the canvas structured by
		flexible rods
14	Horizontal beams	Principle extrusion of the structure used as
		horizontal beams (support members and
		cross members)
15	Feet of the structure	Principal extrusion of the structure used as
		footing (vertical rod)
16	Centre of profile	Square-shaped profile located in the centre of
		the principal profile in which are placed the
		connector rods for assembly of the structure
17	Groove of the profile	Groove present on each face of the structure
		profile. It is used as support for the fasteners
		and functions on the principle of “T”
		insertions.
18	Nut (T-nut)	Rectangular nut with two chamfers that
		allow a ¼″ rotation once inserted in the
		principal profile of the structure. It is this nut
		that applies the tightening force for that
		keeps the fastener in place during screwing.
19	Right angle support fastener	Aluminum extrusion acting as support/hook
		on which is assembled several of the options
		and accessories
20	Anti-rotation strip	Aluminum strip which prevents forces
		applied to the fastener from causing rotation
21	Fastener	Screw that tightens the fastener on the
		structure, holding it there due to crushing
		produced by tightening
22	Fastener assembly	Assembly of the fastener used as accessory
		support on the structure
23	Structure	Self-supporting structure comprised of
		aluminum extrusion profiles
24	Taut top canvas	Top of canvas held taut by a system of cables
		and which offers protection from the sun
25	3-branch connector	Three-branch mechanical-welding assembly
		that allows the structure to be assembled by
		acting as connector of the corners
26	4-branch connector	Four-branch mechanical-welding assembly
		that allows the structure to be assembled by
		acting as connector of the corners
27	5-branch connector	Five-branch mechanical-welding assembly
		that allows the structure to be assembled by
		acting as connector of the corners
28	Connector branch	Extrusion profile comprising the connectors
29	Connector cube	Ornamental cubic finial that hides and
		protects the mechanical-welding assembly of
		corner connectors.
30	Connector reinforcement rod	Extrusion profile soldered into the connector
		cube acting as reinforcement by insertion in
		the structure profile
31	Threaded insertion	Threaded insertions allowing connectors to
		receive the structure assembly screws
32	Structure profile	Principal profile comprising the shelter
		structure
33	Structure anchoring	Mechanical-welding assembly that allows the
		structure to be attached to the ground or to a
		vertical surface
34	Sliding tube assembly	Assembly of tubes inserted in the canvas
		which slides into the structure profile due to
		casters
35	Sliding tube	Main tube of the sliding tube assembly
36	Torsion absorber	Smaller tube used to eliminate blocking
		caused by certain kinds of twisting, by sliding
		inside the main tube
37	Threaded cap	Small tips inserted in the ends of torsion
		absorbers. They contain a threaded insertion
		that allows casters to be tightened at the tips
		of tubes.
38	Caster	Caster inserted in the structure profile which
		allows the canvas to slide
39	Caster screw	Screw holding the caster in the threaded caps
40	Large caster	Larger caster which provides more play in
		the structure profile which can compensate
		for absence of torsion absorbers
41	Accordion canvas assembly	Assembly of the accordion canvas
42	Pulley	Pulley that allows a cable pulled by a weight
		to automatically close the canvas
43	Return weight	Weight that applies a return force to the
		canvas
44	Return elastic	Elastics that can be sewn to the canvas which
		apply a constant force to close the canvas
45	Flexible curve rod	Flexible rods that provide structure to the
		canvas flow curve
46	Guide tips	Ring-shaped tips that act as a guide for the
		opening/closing of the canvas by sliding on
		the steel cable
47	Canvas fastening tube	Tubes inserted in the ends of the canvas that
		allow it to be attached so as to remain open
48	Canvas	Canvas that holds the curve rods, attachment
		tubes as well as the sliding tubes
49	Attachment rods	Main tube of the attachment tube assembly
50	Attachment tip	Tips inserted in the ends of the fastening tube
		which allows it to be attached on the
		structure
51	SS Cable assembly	Assembly of steel cable and tensioner which
		acts as a guide for the canvas guide tips
52	Strip opening 20	Opening for screw 21
53	Support opening 19	Opening for screw 21
54	Threaded opening of nut 18	Threaded opening to attach screw 21
55	Support eyelet 19	Used to hang coupling devices (hooks,
		snaphooks, screws, etc.)

Structure (23) and Unit Elements (32) of the Base Structure
Referring to FIG. 1, the self-supporting structure (23) is comprised of profiles (32) created through aluminum extrusion. The structure uses a single profile to constitute its structure, the profile varies in length to accommodate the use desired (feet, beams, cross members, reinforcement, support). The profile (32) uses a square form comprised of a central longitudinal groove (17) on each of the faces of the resulting extrusion. As illustrated in FIGS. 29 and 30, the groove (17) acts as a support element that can hold the options and assemblies anticipated as additions to the self-supporting structure (23), the latter was developed specifically for this use. The groove (17) currently uses a T-insertion principle which allows the hardware developed with regard to the project to serve as support. Nevertheless, the necessary use of this groove does not limit its shape, different principles of grooves could be used in the same way with a different profile, for example, those represented in FIG. 29.
The structure (23) is assembled with a corner principle (connectors) (25-26-27) which serve as attachment points between the main profiles (32) of the structure (23) (see, for example, FIGS. 1 to 6B, 8, 9, 11, 16A to 19B, and 31). This mechanical-welding assembly of the connectors may be composed with the aluminum extrusion profiles (28) as illustrated in FIGS. 17A and 17B, in order to support the horizontal beams (support members and cross members) (14) of the structure while fitting into the feet (vertical rods) (15) of the structure (23). For example, assembly of the connector (25-26-27) is hidden by an ornamental cube (29) which also maintains the cubic aesthetic of the structure (FIGS. 17A and 17B). The connector (25-26-27) is assembled so as to orient its rods (28) in the X, Y and Z axial directions. The rods are then inserted in the centre (16) of the main profile (32) of the structure 23). For example, as illustrated in FIG. 17A, threaded insertions (31) can be present in each of the rods (28), which then allows a mechanical assembly of the profiles to the connectors using a screw. Different variants of connectors were developed to allow connection of several structures using the same support point (foot). Versions or assemblies with 3 (25), 4 (26) and 5 (27) branches have been developed to allow multiple arrangements.
The principal structure (23) comprises a very limited quantity of parts which facilitates inventory management and manufacture. The profile and connectors were developed so as to allow as many arrangements as possible without any modification to the constituent parts, no customized or specialized manufacture is required for a particular type of structural arrangement. The structures and the assemblies of the invention are entirely modular. For example, structure members (support and cross members) as well as feet (vertical rods) have an identical profile.
The structure is modular and can be used to support several objects, in particular a canvas for shade and rain protection, as described in the present application. Other types of canvas are envisaged, e.g. a flat or simple canvas for use as shelter against the sun (see for example FIG. 10).
Description of the Canvas (41)
Referring now to FIGS. 1, 2, 7-9 and 11, the shade and rain protection canvas (41) can be easily installed on the structure (23) as an option. The canvas (41) is distinctive because of its particular shape which is characterized by pleats (8) and slopes (9) reminiscent of an accordion principle (see for example FIG. 20). Referring to FIG. 22, the canvas can be, e.g. structured in the frame by tubes (members of the first type) (35) with sliding casters (38) which are inserted in the upper tips (12) of the accordion as well as by flexible rods (members of the second type) (45) which are installed in the lower tips (13). This particular provision provides the canvas with a certain rigidity and consistency of shape. The sliding aspect of the canvas (41) allows it to be opened and closed, providing flexibility of use. Bottom casters (38) slide in the groove (17) of the main extrusion profile (32) to allow the opening/closing movement (see FIG. 22). Referring to FIG. 14, the flexible rods (members of the second type) (45) inserted in the bottom tips (13) of the canvas (41) have guide tips (46) of eyelet type which slide on a taut cable (or a guide) (51) so as to guide the canvas (41) and avoid twisting as much as possible during movement The flexible rods inserted in the bottom tips also serve to structure the canvas (41) with a flow curve that guides water to the sides of the structure to prevent accumulation and ensure the structure is completely waterproof. FIG. 32B illustrates the distance (A) between two lower tips of the canvas, the height (B) between an upper tip and a lower tip of the canvas (41), as well as the angle (C) between the two slopes generated by a fold. FIG. 33 illustrates the flow curve (D) which extends the entire width (E) of the canvas (41).
The canvas (41) can be entirely assembled and dismantled, it is assembled by inserting rigid tubes (35) and flexible rods (45) in pockets provided for this, to then be slid into the structure (23) which requires no dismantling. Since the project is based on a modular principle, options must be installable after assembly of the structure (41). The sliding principle of the canvas (41) could function following other cable principles, such as weighted, or a crank system and benefit from a gutter system located at the ends of the bottom tips (13), which redirects water there thanks to the flow curves created by the flexible rods (45) to collect water.
Absorption Device (36)
Referring now to FIGS. 22 and 23, to allow for smooth opening/closing of the canvas (41), an “anti-twist” device was developed. This device offers a margin of twisting which does not block sliding of the bottom casters (38), if the canvas (41) has been operation in an uneven manner. The absorption principal is characterized, e.g. by sliding tubes (36) at the ends of the bottom tubes (35) on which casters (38) are installed through threaded tips (37) and screws (39). These sliding tubes (36) allow the necessary extension of tubes (35) during twisting to avoid any blockage (see in particular FIGS. 23A, 23B and 32C). The absorption device, comprising elements 36 to 39, is installed on the canvas (41) prior to installation on the structure (23). One of the advantages of the absorption device is in its simplicity of assembly, low number of parts and autonomous function which does not require particular maintenance or use. Use of the product is intuitive for the user with simple devices for use.
This absorption device can, according to a variant of the invention, be based on one of the different mechanical principles, such as long screws (39) that would allow side movement of the casters (38) and would not require a sliding tube (36 a), as shown in FIGS. 24B and 24B.
Another principle explored with success was the use of larger casters which would offer more play once inserted into the groove of the main profile, as illustrated in FIGS. 25A and 25B.
Modularity
The very great modularity of the invention structures allows for the creation of different varieties of shelters.
The concept starts with a base structure (23) which is the ALFA composition. This composition of tubular lengths (32) and connectors (25-26-27) is the basis of the shape and functionality of the project.
This composition of parts can create infinite lengths and different geometric forms. To obtain the desired final product adding the desired options is sufficient Each connector piece (25-26-27) must have homogeneous installation, i.e. they must be attached with the same bolts at the same level. For example, at the foot of a gazebo (33) which is attached to the ground, can also be installed on the horizontal beam (14) and attached to a wall (11). Some connectors of different shapes can be installed at any end of the structure and therefore extend the structure itself in several different directions (see for example FIGS. 11, 18A, 18B, 19A and 19B).
Each designed option must be easily installed on the structure (23) both with the initial installation and as a retrofit. This means permitting installation of a new option or a new type of roof on the base structure, without altering the components of the structure (23) and even without taking it apart. Each option and complementary accessory is designed with this purpose. Moreover, each option and each accessory must advantageously be able to be shipped by courier and therefore must be maximized to reduce costs and complexity of installation for the consumer. The product can be installed temporarily since it is very quick to install and dismantle. It can also be installed permanently, in particular because the product is of commercial quality.
The vertical and horizontal members [see, e.g. feet (15) and beams (14)] can be identical. Thus, the structure members, support members cross members and vertical rods can be used interchangeably. In fact, all these parts can be identical and thus a given piece can be used either as a support member, or as a cross member or as a vertical rod.
Tension Mechanisms for the Retractable Canvas (41)
The retractable canvas (41) is comprised of a waterproof or non-waterproof fabric, with aluminum rods as support The flexible rods (members of the second type) (45) in fibreglass provide shape and body to the canvas (41). The aluminum tubes (members of the first type) (34) have casters (38) at the ends and roll in the groove (17) of the extrusion (32). Opening and closing of the canvas can be done in several ways. As side curtains or side screens (6) (see, e.g. FIG. 31): to block the view or the wind or simply for aesthetics. Can be opened manually, automatically with a remote, or with a press button or controlled by a cell phone or motor.
Operation can be manual: with one or two hands, the operator can detach the canvas (41) and slide it (41) manually, as illustrated in FIG. 2, in which the canvas is in a folded position. With the anti-blocking system (36) the rods (support members) (35) do not have to be perfectly aligned in parallel. The rods will still slide. Several options are possible to keep the canvas in the extended position. For example, attachment tubes (47) positioned at each end of the canvas can include a device, for example hooks, to attach the canvas to the cross members. Hooks can be attached to fasteners that are described herein. Each fastener, being attached in a groove of a cross member, is comprised of a support which includes an eyelet in which the hook has been inserted (e.g. see FIG. 38—a hook or snaphook has been attached in an eyelet).
In another example, the attachment tube does not include a device but is secured to the cross members with a clip held by the fastener (22), which is in turn attached to the groove of the cross members (see for example FIGS. 36 and 37).
Opening and closing by pulling or rolling a cable: For example, referring to FIG. 12, one or more cables (10) can be installed in the structure (23), either by using the grooves of the profiles (17) or the centre of the profiles (16) (see FIG. 30) to run the cable. An external principle of the pulleys could also be added to the system and operated using counterweights (43) positioned inside profiles (32), grooves (17) or, again, exterior to the structure and/or springs (44) hidden or not in the structure (23) (see FIG. 13). The action of pulling or rolling a cord can both open and close in the 2 cases.
Fastener (22)
With the goal of adapting several options to the structure (23) invention hardware was developed specially for the structure. Referring to FIGS. 26, 27 and 34 to 38, the attachment system (or means of fastening) (22) is designed to adapt to all attachment and installation needs and defines the shape of the principal profile (32) of the structure (23). In the case of the retractable canvas (41), the fasteners (22) can act as supports for the guide cable tension system (51).
Fasteners can be comprised of an extrusion profile, for example with a right angle (19), which is installed outside of the groove (17) of the principal profile (32) and which acts as a support for the options/accessories. For example, the fastener (3) can include a notch (5) to hold and support an object, such as an attachment member (47) of a canvas (FIGS. 35 to 37). For example, it is possible to insert a nut washer (4) between the screw and the nut (FIG. 35B). For example, the fastener (22) can include an eyelet (55) in which can be inserted a coupling element, e.g. a hook which can be connected to the canvas in order to support a flat canvas (FIG. 38).
This support is maintained by the T-nut (18) which is inserted inside the groove (17) (see FIG. 27A) and, once the assembly (means of attachment) (22) is screwed, makes a one-quarter turn to become blocked in the groove (17), providing pressure which fixes it in place while the screw is tightened (see FIG. 27B). The nut (18) includes a serrated surface allowing engagement by friction with an object to be fastened by the means of attachment The support (19) includes a serrated surface allowing frictional engagement with an object to be fastened by means of the attachment FIGS. 34A and 27B illustrate more particularly the proportions of the nut (18) next to a groove in a profile (32). The nut (18) is of a generally rectangular shape and has four corners. Two corners connected by a first diagonal are rounded and two corners connected by a second diagonal form right angles. The first diagonal includes a length G which is less than the second diagonal. The dimensions of the nut allow insertion in the groove, between the two edges of the groove (acting as retaining lips for the screw), since one of its sides is narrow, of a smaller dimension than the distance between the two edges. The groove comprises a width F which has a dimension approximately similar to the longest side H of the nut, greater than the length of the first diagonal connecting the rounded corners G but less than the length of the second diagonal connecting the right-angle corners. Thus the nut can be turned no more than 90 degrees only in one direction and then becomes blocked in the groove. The nut is then blocked since the length H prevents additional rotating due to its size and the nut is therefore blocked by frictional engagement with the groove.
The advantage gained by this principle is the possibility of inserting fasteners (22) (means of attachment) in the groove (17) of the structure (23) without the latter being disassembled.
For example, fasteners can be inserted in the grooves of the support members, cross members, as well as the vertical rods. Moreover, there is no need to screw anything at all directly into the profile (i.e. a support/cross member or a vertical rod).
The fastener (22) is also equipped with an anti-rotation strip (20) which allows it to stay parallel to the groove (17) at all times, thereby avoiding sliding from starting. The anti-rotation strip (20) includes one central part and at least one fin, preferably two fins located on both sides of the central part, forming a 90-degree angle with the central part The fins are next to the two side parts of the support, as illustrated in FIGS. 26A and 26B.
Upon installation of the means of attachment (22) in groove (17), the means of attachment (22) is pre-assembled, meaning that the screw (21) is inserted in the opening (52) of the strip (20), then in the opening (53) of the support (19) and finally in the threaded opening (54) of the nut (18). The nut (18) and a part of the screw (21) are then inserted in the groove (17) by placing the nut (18) parallel to the direction of the groove (17) (see FIG. 27A). The screw is then tightened, which potentially caused the 90-degree rotation of the nut which has tightened the lips or edges of the groove (17) (see FIG. 27B). A user may easily do all this and installation does not necessarily require the use of two hands by the user. Indeed, the user can then fasten an attachment (22) in a groove (17) without being obliged to insert fingers into the groove or being obliged to insert another object to hold the attachment (22) during installation since the configuration of the fastener allows the user to use one hand to quickly install it by making a single quarter turn (90-degree rotation) in order to fasten the attachment (22) to the ends of the groove (17). The configuration of the attachment (22) is called “quick fit”.
Several varieties of fasteners (22) providing the same function are envisaged: nut without rotation which must be inserted by the ends of the structure profiles or permanent hardware requiring a piercing of the structure profiles.
For example, fastener (22) may be used to attach guide cables. In this case, it is possible to attach two fasteners (22) in the grooves of the feet of the structure (or vertical rods) at a height corresponding to that of the bottom tips of the canvas.
For example, two fasteners can be attached in the grooves of the structure fee (or vertical rods) at a desired height in order to install a device to hold a curtain support.
Referring again to FIG. 26, several types of screws (21) are envisaged. The screw has a threaded rod (not indicated in FIG. 26B) and a head, for example a head comprising a six-sided opening (for an Allen key).
Motorization: With the help of a motor, closing and opening of the roof and/or side curtains can be done by a manual switch, remote control or cell phone applications.
Possible Variations of the Principal Profile of the Structure
The principal extrusion profile of the structure (32) was developed as part of the project to permit adaptation to different needs of the project Its symmetrical form is justified by the modular aspect which is required of the structure (23), like the insertion grooves (17) which are present on each face. However, while the current profile fulfils its requirements, it could still have different shapes which would respond to the needs of the structure (23).
The centre of the extrusion (16) currently uses a square shape which holds the connector rods (28), its form is defined by that of the connectors (25-26-27). However, the connectors could use circular branches (28), thereby causing the centre of the profile (16) to have a circular or other shape, as illustrated in FIG. 29.
Referring again to FIG. 29, the groove (17) on each face of the profile (32) can also be subject to different variations in size, proportions and even form. Since this form acts as a support to the fasteners (22) its form depends on that of the T-nuts (18) which can also change. The primary aspect of the groove are the edges which act as retaining lips for the nut (18) as well as its opening, which must allow for the latter to be inserted. However, the dimensions and proportions of the groove (17) and their edge can change yet maintain their function, certain aspects of the groove (17) such as the bevels or the rectangular shape can also be modified as long as the retaining edges are still present.
Various aspects of the extrusion (32) were established according to technical or manufacturing constraints or for solidity or the price of raw materials. Therefore, certain thicknesses could vary to increase/reduce solidity and manufacturing costs, the shape of corners could also change to accommodate certain equipment The profile principal is based on its functioning not its shape and dimensions.
This invention was described above in reference to a preferred mode of creation of the invention. Of course, the production which has just been described is only for the purposes of illustration and is in no case restrictive, various modifications can be made to the different objects of which it is comprised without going beyond the scope of this invention.

Claims

1. Accordion-type folding canvas comprising:

a plurality of members of a first type, said members to be inserted into said canvas, said members of the first type comprising, at each end, a means for sliding or moving to be inserted into a structure, the said members of said first type having a sliding device so as to be able to modify their length during said sliding or movement, in this way preventing blocking,

a plurality of members of a second type, said members to be inserted into said canvas, said members of the second type being flexible so as to allow formation of a flow curve when said canvas is in an extended position.

two attachment members, to be inserted into said canvas and located on the ends of the canvas, said attachment members comprising a device allowing maintain said canvas in a deployed position,

said members of the first type and said members of the second type to be alternately arranged, in parallel, when they are inserted in the canvas, so as to form an “accordion” configuration, when the canvas is in a folded or extended position, said attachment members replacing said members of the second type in alternation at said ends of the canvas.

2. Accordion-type folding canvas comprising:

a plurality of members of a first type, said members to be inserted into said canvas, said members of the first type comprising, at each end, a means for moving to be inserted into a structure, the said members of said first type having a sliding device so as to be able to modify their length during said movement,

a plurality of members of a second type, said members to be inserted into said canvas, said members of the second type being flexible so as to allow formation of a flow curve,

two attachment members, to be inserted into said canvas and located on the ends of the canvas, said attachment members to be attached in a fixed manner to a structure in order to maintain said canvas in a deployed position, and

said members of the first type and said members of the second type to be alternately arranged in parallel when they are inserted in the canvas, so as to form an “accordion” configuration.

3. Folding canvas according to claim 2, in which said attachment members replace said members of the first type or second type in alternation at said ends of the canvas.

4. Canvas according to claim 1, in which said members of said first type are upper members and said members of said second type are lower members.

5. Canvas according to claim 1, in which said sliding device includes two cylinders, inserted one into the other.

6. Canvas according to claim 1, in which said sliding device includes two cylinders, inserted one into the other so that, if one end of one of said members of the first type is moved in an uneven fashion at its opposite end in relation to said structure during movement of the canvas in relation to said structure, said member of the first type will get longer thanks to said sliding device, thereby preventing blockage during movement of said canvas.

7. Canvas according to claim 1, in which said means of sliding or movement include casters.

8. Canvas according to claim 1, in which said members of said second type are connected together by at least one guide, to one of said ends of said members of said second type, at least one of said guides being arranged in a fashion generally perpendicular to said members of said second type.

9. Canvas according to claim 8, in which said members of said second type are connected together by two guides, one at each of said ends.

10. Canvas according to claim 9, in which said guides are cables inserted into eyelets located on said ends of said members of said second type.

11. Structure comprising:

a canvas as defined in claim 1; and

at least two support members, said support members each comprising at least one groove to receive said means of sliding or moving of said members of the first type of said canvas in order to maintain said canvas and allow it to move between a folded position and an extended position.

12. Structure according to claim 11, in which said support members comprise two support members connected together by two cross members in a fashion generally parallel to said members of the first and second type, said support members and said cross members forming a frame that maintains the canvas.

13. Structure according to claim 12, which also comprises at least two vertical rods allowing retention of said frame and said canvas at a desired height.

14. Structure according to claim 1, in which said cross members each include at least one groove.

15. Structure according to claim 1, in which said cross members each include at least one groove.

16. Structure according to claim 14, in which at least the two of said support members are interchangeable with said cross members.

17. Structure according to claim 15, in which at least the two of said support members are interchangeable with said cross members or with at least two of said vertical rods.

19. Structure according to claim 1 in which said support members, said cross members and said vertical rods are to be connected together using connectors, said connectors containing branches to be inserted into cavities of said support members, said cross members and/or said vertical rods, said connectors to be located at the corners of said frame and sized so that the branches are hidden inside said support members, said cross members and/or said vertical rods when they are inserted into them.

20. Structure according to claim 19, in which said connectors have three branches, one branch being positioned vertically and two branches being positioned horizontally, said horizontal branches forming a 90-degree angle between them and with said vertical branch.

21-72. (canceled)