CA2139729C - Flexible shelter - Google Patents

Abstract

The present invention represents a flexible shelter which serves to shelter one or more vehicles, which is retractable using cables and a winch system and which is stored in a storage box fixed to the structure of any building , the box then conceals the shelter and matches the exterior structure of the building for a better aesthetic appearance. The arch-shaped storage box has a hole in the center to allow vehicles or people to pass through the arch to enter the building such as a garage or front door. The shelter moves on wheels at the end of the structure and an inclination system of the structure allows this type of shelter to be used on sidings which are not always at right angles to the wall of the building on to which the shelter is attached. The present invention offers greater ease of use and maintenance than already known systems.

Description

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M>'MOIRE DESCRIPTION i & AI6340.T & E
TITLE: FLEXIBLE SHELTER
FIELD OF THE INVENTION
This invention relates to the field of shelters and more precisely to flexible shelters which can fold when are not used.
PRIOR ART
A number of flexible shelters are now known and available on the market and several patents have retained our Warning:
* US 5,338,084 Wardell, August 16, 1994, illustrates a shelter system for goods on trailer trucks and has a number of straight arches attached to a tarpaulin which forms the periphery of the arches. These arches are then mounted on undercarriages which are themselves mounted on rails to allow their longitudinal rotation. An engine or a winch manual is installed at the rear of the trailer and when put in walk, activate a cable connected to all the arches and deploy them.
Another motor at the start of the trailer does the same when activated and puts away the arches in the front part of the trailer. A control console is present and allows the operator to have a good vision of the operations during use of the shelter.
* US 4,844,109 Navarro, July 4, 1989, illustrates a shelter flexible foldable that moves on rails and also has hoops that form the skeleton of the shelter; these hoops move forward and backward vertically by being linked together by a pantograph system which moves the arches by means of springs arranged throughout the shelter. The shelter deploys using two cables which are located on both sides of the shelter and are wound or relaxed by pulleys connected to a motor or a crank.

-at-2139'729 * US 5,005,896 Li, April 9, 1991, illustrates another system shelter for goods on heavy truck trailers.
This system consists of movable arches on bearings connected to motion rails which are then located on the flat surface of the trailer. The poles are linked together with metal cross-pieces which are movable in part lower and which are all interdependent. For deploy the shelter, you must pull or push the first hoop and the deployment is done alone, as well as for storage.
* US 4,150,682 Ryce, April 24, 1979, illustrates another shelter retractable which is portable and stores in a box having opening panels. The shelter has straight arches which are connected by self-locking slats and retraction cables from the shelter. We also discern a rod for the extraction of the shelter of its container. The slats must be raised one by one to enter the shelter in the storage box and this box closes access to an automobile to pass under the shelter of a opening to the other. Here we can see that the hoops have pads to slide on the ground when deploying the shelter.
* US 3,534,512 Ballas, October 20, 1970, illustrates a shelter flexible and deployable that attaches to the facade of a building and which is actually a multitude of planks arranged in accordion for easier handling. Again here we have to resort to a rail system for additional deployment and storage to have to dig anchor holes in the ground for the maintenance of the shelter in the deployed position. Its rectangular shape allows the accumulation of snow on its top and thus the efforts on the structure are multiplied. The simple nature of mounting admits a risk of buckling on the sides of the shelter during heavy roof loads, the structure itself is heavy and requires a rod to put the shelter in place, which

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3 2139'ï29 represents one more operation in the implementation of the shelter.
The shelter storage cavity is fixed to a wall of a building and is always open, making the shelter unattractive when stored for a period of time.
* US 3,256,896 Cummins, June 21, 1966, illustrates a shelter which is mainly used on military transport trucks.
The shelter consists of a series of arches that move over two rails arranged on either side of the truck body. The Web protective of this shelter fixed on the inside of the arches leaving these exposed to the elements and the shape of these arches allow the accumulation of weight on its summit (snow, etc ...); the arches are set up and held by metal braces, the upper part of which is sliding. Of the more we mention a storage box that stays open for its storage and exposes the canvas or structure even more weather.
OBJECTIVES OF THE INVENTION
The objectives of the invention are to improve the deficiencies of other inventions on the market and mentioned above in addition to provide other benefits that will become more apparent and clear in the description of the invention which follows. As advantages main, we find first:
(a) a retractable shelter which is easy to handle and which can be implemented without too many logistical needs, (b) a shelter which has the shape of an arch and which can be stored in a box when not in use and the box does not interfere the passage of cars entering or leaving a garage or a any discount, (c) a simpler construction method which is made in such a way that the support arches are actually the means of movement of the structure by a pantograph system, this concept _ r. ~
2139? 29 combination of support and movement functions provides decrease in the number of parts, a simplification of the movement mechanism as well as a stronger and more stable structure than other such systems, (d) better curve in the support arches to minimize snow deposits on the structure, (e) a vertical position in the support arches once deployed to obtain maximum resistance to snow deposits which could remain and which could overload the structure and thus risk a rupture, (f) means for adjusting the angle of the complete structure, for users with a siding that may not be flat but have a slight up and down angle, which limits most systems on the market these days, (g) a simplification of the shelter's rolling system which does not consists of a single pair of wheels to allow rolling easier when a siding is not completely flat, (h) a method of fixing the shelter which is simple and solid by ground anchor on either side of the shelter to prevent movement of the latter, (i) a mechanism which raises the canvas of the shelter during its storage and which lowers it during its deployment which prevents the canvas or cables get tangled and break, which would be annoying for the canvas, (j) a shelter deployment mechanism that does not hinder access in the garage because it is located at head level and is easily implemented both manually and with a motor any, (k) A storage box that attaches to a building, which harmonizes with the architecture of this building and which does not require minimal space.

4 2139? 29 All of these benefits add up to provide more shelter solid and easier to use than any other system on the market mainly because of the pantograph mechanism and arches of combined supports.
DRAWINGS:
We will describe in more detail below, for information and in no way limiting, a device in accordance with the present invention with reference to the attached drawing in which:
FIG.1 is a perspective view of a flexible retractable shelter deployed with partial cut.
FIG.2 is a side view of a first section.
FIG.2A is a detail view of a part 98.
FIG.3 is a side view of a middle part.
FIG.4 is a side view of a final section.
FIG.S is a front view of an arch section.
FIG.6 is a view according to arrow 6-6 of FIG.2.
FIG.6A is a view of a detail 6A of FIG.6.
FIG. 7 is a view of the region of arrow 116 FIG.B is a top view of the region of arrow 8.
FIG. 9 is a side view of the shelter in the closed position with partial cut.
FIG. 10 is an alternative for locating a shelter retractable stored.
DESCRIPTION OF THE INVENTION
The preferred embodiment of the invention is illustrated in FIG. 1 where the same characterizing elements are identified by the same numbers and where we see:
a flexible shelter 19 combined with a storage box 20 which houses an alignment system 22 (FIG. 2) of the shelter 19 and which consists of a pivot and structure support 24, located approximately halfway up the height of the storage box 20 and that is

5 2139? 29 held in place on a support point 23 of an external structure 102 like a house or garage, using fixing screws the anchor 25. A pivoting anchor column 26, comprising a sliding groove 28 at the top, a fixed anchor pivot 32 at the bottom and a structure support pivot 104 is fixed to the support pivot and structure 24. This system allows an adjustment of the angle ~ 1 46 which is the angle of inclination of the shelter relative to the horizontal. The sliding groove 28 makes it possible to receive a sliding anchor pivot 34 of a single arch 52 and allows a vertical movement of the latter during deployment or storage of the shelter. The bottom of the pivoting anchor column 26 receives the fixed anchor pivot 32 of a gable arch 50 mistletoe has an angle a 54 and finally an angle o 60 --FIG.5-- which ends the tip of the arch pinion 56. It is this arch pinion which supports the fabric 63 on top of the structure; angle a 54 is also present in symmetry on the other side of the structure.
The pinion arch 50 --FIG.2-- is rotatably attached to the simple arch 52 in the middle --FIG.2-- by a pivot of crosspiece 62. The simple arch 52 can take the form of two poles located face to face, each on one side of the flexible shelter, and connected or not at the top. The pivot pin 62 allows a simultaneous rotation of the two arches, the simple arch 52 and the arch gable 50. An arch spacer 94 --FIG.6-- creates a vacuum between the arches for the installation of a movement cable 38 -FIG. 6--. The 110 cross braces attach to each other as follows: the top of the first gable arch 50a is fixed by an upper pantograph pivot 64, just under angle a 54, at top of the second simple arch 52a '. The bottom of the first arch simple 52b is fixed by a lower pantograph pivot 66 at the bottom of the second gable arch 50b 'and so on arch brace in arch brace to length

6 2139'29 desired.
The cables for upper stroke limit 98 --FIG.2A-- and lower 96, are fixed to the upper pantograph pivots 64 and lower 66 --FIG.6-- to limit the extension length of each arch spider 110 at a predetermined length, at the opposite of an angle 8 106 between the simple arch 52 and the arch at pinion 50, to give an orientation to the arch pinion 56 up to that the vertical is reached. The structure of the shelter 19 -FIG. 4-- ends with a last cross 116 whose part upper is fixed, by a sliding anchor pivot 34b, to a sliding groove 59 of an end of mounting column 58 and of which the lower part attaches to the bottom of the end of mounting column 58 to a second anchor pivot 61. This end column mounting 58 acts as the pivoting anchor column 26 in allowing a vertical displacement of the last cross 116. A
end of structure tubing 76 is fixed to a facade 122 by screw means to the end of mounting column 58. One leg telescopic 78 --FIG.7-- which fits into the tubing and sits on a travel wheel 82. A hook hole 112 is located at any distance from the bottom of the end tubing structure'76 and allows to receive an anchor hook 84 which is connected by a hook tensor 86 to an anchor 88 present in the ground 114.
In terms of moving the shelter, two cables movement 38 --FIG.4-- of shelter 19 are fixed, one on each side, to the end of assembly column 58 and pass into the spaces left by the different arch spacers 94 --FIG.6-- all the way along the shelter structure 19. The movement cables of shelter 38 then pass through the first alignment pulleys 30 --FIG.2-- held in place using anchored pulley pivots 42 on the pivot and structural supports 24. The cables remain

7 _g well aligned at all times with shelter 19 even if there is a inclination, declining or rising of the shelter 19 relative to the vertical of structure 102, which results in an angle ~ 46 not zero between the anchoring column 26 and the structure 102. The cables 38 --FIG.B-- thus straightened are then routed to the high and pass through diverting pulleys 36 which are fixed on the structure 102 by pulley pivots 44 and redirect the cables 38 to a movement winch 90 of the shelter which maybe manual or using any motor means.
The fabric 63 --FIG.1-- is fixed on the structure of the shelter 19 of so as not to interfere with its movement during its deployment or its storage. The canvas 63 has a canvas extension 74, which allows greater sealing of the sides against the wind. A
border 126 --FIG.3-- has a series of canvas bottom ties 72 may include an eyelet and a ring arranged at a rate of one between each crosspiece --FIG.3--, in the middle of the length of the lower stroke limit cable 96. These fasteners allow no longer holding the canvas in place, raising the limit cables lower stroke 96 so that they do not become tangled when storage of the shelter 19. Upper canvas fasteners 92 -FIG. 6-- located on each arch pinion 56 --FIG.5--, at the rate of 4 or 6 per gable and connect the fabric 63 to the structure of the shelter 19, mainly on the sprockets of arches 56.
We also note in FIG. 5 and FIG. 6 that the simple arches 52 may or may not have a retaining beam 100, which does not not significantly change the strength of the structure of shelter 19 but which in certain cases helps to reinforce the structure.
The storage box 20 is in the shape of an arch having a gable 91 --FIG.1-- on its top and has a rigid facade arch 122 which forms the door of the box when it is used for storage for the shelter but which is fixed on the flexible shelter 19. The arch

8 _q _ rigid of front 122 moves in concert with the shelter and is fixed in its end on the end of mounting column 58. When the shelter closes, the rigid facade arch 122 drives the structure of cross and the canvas towards the inside of the box and the arch rigid front 122 then comes to rest on the box 20 and forms then the lid of this box, leaving free passage for an automobile at its center --FIG.1--.
A canvas door 124 is fixed to the rigid facade arch 122 and comes to close the shelter when vehicles are present in the shelter to protect them from the weather and not to admit snow inside the shelter. The junction between perimeter of the shelter and the box is made through a fabric junction 120 --FIG.1-- which is flexible and which prevents also the accumulation of snow in the shelter.
MODE OF OPERATION OF THE INVENTION
The invention works as follows: the shelter is not in function and is stored, as we can see on --FIG.9--, in its storage box. The shelter is contracted using the cables of shelter movement. For its deployment, the brake is released from the winch or put it in neutral position, and pull on the tubing at the end of the structure, which means that the shelter is deployed by its pantograph principle. Each segment of the shelter, which is called cross, deploys simultaneously and reaches its extension maximum when the length of the limit line cable --FIG.2 ==
is reached. The full extension of each spider is reached at the same time. When the shelter is in the storage position, the braces are all closed and form structures substantially vertical except for the upper part of the arches with pinion which forms an angle a 54 --FIG.9-- with the vertical. When from the extension of the shelter, the braces increase the angle to 106 between a simple arch and a gable arch. The angle of

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- 10-21 ~ 9 '~ 29 ; ..
braces is defined by the length of the limit cables of race, in the manufacturing method. The more the pantograph is stretched, the more the arch pinion approaches vertical to a maximum extension position, and the gable arches can then hold the canvas securely and exert a vertical force contrary to any load that may be present on the ridge of the canvas.
Throughout the extension, the displacement wheels support the weight of 1 ~ shelter and allow easier movement of the shelter during its removal or storage and are mounted on legs. A telescopic action is made at the level of the groove of slide 59. The end of assembly column is present for allow the top of the last spider to lift when storing the shelter. Indeed during storage, the braces tend to increase their height coming from the fact that the crosspiece segments are of a certain length and do not may change. We can compare this phenomenon to a triangle rectangle; the brace segment being 1 ~ hypotenuse and its downward projection, side A, and its vertical projection, a side B. During the movement of 1 ~ shelter while storing it, so from movement of the spider segment (hypotenuse), side A tends to decrease. But we know that the hypotenuse remains constant, so we must increase the length of side B --FIG.4--. Finally a hook is fixed on the end of structure tubing to keep it in place and thus prevent any movement of the shelter. This hook is then linked to a ground anchor by a tensor which when stretched allows a solid fixation of the system and when relaxed, allows a easy removal of the hook.
The alignment system allows tilting of the shelter while integer when the entry to be covered is sloping. The whole pivots and keeps the shelter aligned with the grade of slope at all times 21 ~ 97 ~ 9 f without affecting its deployment because the cables of movement are on alignment pulleys --FIG.2-- which always keep parallel to the shelter. >; with canvas junction, which connects the edges of the shelter and the box together, unfolds and helps prevent snow accumulation in the shelter. She does not interfere with the movement of the shelter.
When storing the shelter, the anchor hooks are removed and the operation becomes very simple; the winch is then activated and the motion cables attached to it start to pull on the end of mounting column where they are also attached. This has to bring the pantograph braces back to the storage --FIG.9--; we also note the effect of the lengthening of the structure on its height which results in an elevation of the canvas at the same time. This elevation has two main purposes; the first being to lift the canvas so that it does not drag on the soil and thus does not wear out prematurely or become damaged. The second goal is to lift the limit cables lower 96, through the bottom canvas fasteners 72 -FIG. 3--, so that the cables do not become tangled or damaged. At the end of the pantograph race, the shelter is then put away and the rigid front arch comes to rest on the box and comes then close it. No additional work is necessary.
General objectives: to provide a flexible shelter which is foldable, which ranks and which includes, in combination:
a first support means intended to be mounted at a point support, - a pair of sets of crosses, each set arranged in a plane, the two planes thus formed being face-to-face and parallel, each cross being composed of two segments having a top, a middle and a bottom, the segments joining, pivotally, in their

11 - ~ a -2139'29 middle and each bottom of each segment being connected to the bottom of the neighboring segment in the series, each top of each segment being connected to the top of the neighboring segment of one of the crosses in the series, each series having a first cross, a last cross and a number n of intermediate crosses between the first and last cross, the first cross being attached to the chassis, the chassis comprising a means of alignment of each series of crosses perpendicular to the frame, - each series of crosses being extendable, from a storage position near the chassis to an extended position and each of the series of crosses being retractable towards the frame, by means of movement passing through the center of the cross, the maximum extension being defined by the sum of the elongations between the two segments of each cross, - a second support means intended to support the mass of the series of crosses during its extension, the second means of support being located near the last cross, - a number of tops of crosses from one of the series being connected to corresponding crosses from the series of opposite crosses in the pair, by arches intended to move, in concert, the crosses as well semi-detached, the arches having a raised, arched part, intended to facilitate the support of a load, the raised part arched being oriented at an angle a, when the crosses are in storage position, the cross segments then forming an X
almost vertical; the arched part being oriented vertically when the crosses are deployed, the angle a being obtained by the sine of the elongation between two segments of a cross divided by the length of the segment, the angle a being between 0 and 60 degrees, depending on the applications.
Other realizations are possible and limited only by the scope of the claims which follow the legend below.

12 - t3 2139? 29 LEGEND:

19. Flexible gable shelter 20. Storage box 52. Simple arch 22. Alignment system 52a '. Top of the second arch 23. Simple support point 24. Pivot and 52b support. Bottom of the first arch simple structure 25. 54 fixing screw. Angle a anchor 56. Arch pinion 26. Anchor column 58. End of assembly column swivel 59. Sliding groove 28. Sliding groove 60. Angle a 30. P remirepou 1 ie 61 Second anchor pivot _ alignment 62. Spider pivot 32_ Fixed anchor pivot 62b. Spider pivot 34. Sliding pivot 63. Canvas anchor 64. Pantograph pivot 34b. Upper sliding pivot anchor 66. Pantograph pivot 36_ Lower diverting pulley 38. 68 movement cable.

shelter 70.

40. Central pivot of 72. Attachment of canvas bottom anchor column 74. Extension of the canvas 42_ Pulley pivot 76. End of pipe 44_ Pulley pivot structure 46. Angle ~ 78. Telescopic leg 50. Pinion arch 82_ Travel wheel 50a. Top of the first arch 84. Anchor hook pinion 86. Hook tensor 50b '. Bottom of the second arch 88. Anchoring

13 L.
90. Movement winch 1 ~ shelter 91. Gable 92. Upper clip of canvas 94_ Arch spacer 96. Stroke limit cable inferior 98_ Stroke limit cable superior 100. Support rail 102. External structure 104. Support pivot structure 106. Angle &
110. Arch brace 112. Hook hole 114. Soil 116. Last cross 120. Canvas junction 122. Rigid front arch 124. Canvas door 126. Border

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Claims (15)

CLAIMS: 1. A flexible shelter that is collapsible, stowable and includes, in combination:
- a frame intended to be mounted at a support point, - two series of crosses, each series arranged in a plan, the two planes thus formed being face to face and parallel, each cross being composed of two segments having a top, a middle and a bottom, said segments pivotally joining at their middle and each bottom of each segment being connected to the bottom of the neighboring segment in said series, each top of each segment being connected to the top of the segment adjacent to one of said crosses of said series, each series having a first cross, a last cross and a number n of intermediate crosses between said first and last crosses, said first cross being attached to said chassis, said chassis comprising means alignment of each series of crosses perpendicularly said chassis, - each of said series of crosses being extendable, from from a storage position close to said frame to a position deployed and each of said series of crosses being retractable towards said chassis, by means of movement passing through said center of said cross, the maximum extension being defined by the sum elongations between said two segments of each cross, - a support means intended to support the mass of said series of crosses during its extension, said support means being located near the said last cross, - arches connecting a number of tops of said crosses of a of the said series to the corresponding crosses of the series of crosses opposed and intended to move, in concert, the said crosses as well as paired, said arches having a raised, arched portion, intended to facilitate the support of a load, said part raised arcuate being oriented at an angle .alpha., with respect to said segment vertically, when said crosses are in the position of arrangement, said segments of said crosses then forming an X
quasi-vertical; said arcuate portion being oriented vertically when said crosses are deployed, the angle .alpha. being chosen from such that said arcuate portion is generally vertical when said series of crosses is in the deployed position, the angle .alpha.
between 0 and 60 degrees. 2. A flexible shelter as defined in claim 1 of which said chassis includes:
- an anchor column, having a bottom, a middle and a top and having at its bottom a first pivot means, in its middle a second pivot means and at its top a vertically sliding groove and intended to receive a third pivot means, a first cross of said series of crosses being fixed, from the top of a first segment, by said third pivot means, to said groove sliding vertically, and from the bottom of a second segment corresponding to said bottom of said anchor column by said first pivot means, - a pivot and structure support is attached to said points supports by a means of attachment and is also attached in such a way pivoting to said anchor column - said second pivot means being attached to said pivot support and structure and intended to support and orient said column anchoring and serving as a means of alignment. 3. A flexible shelter as defined in claim 2 of which said point of support is the structure of a building, - said arches comprising a first arch, a series of arches intermediate and a last arch, said last arch coinciding with at least one segment of said last cross, -said shelter being able to be stored in a storage box having the form of an enlarged arch fixed to said fulcrum, said widened arch being intended to receive said shelter during its storage, - said storage box having two parts, rear and complementary frontal, said frontal part being removable and fixed on said last arch and able to rest on said rear part when said shelter is fully retracted, - an opening being located in the center of said box of storage, for the passage of vehicles, that said shelter is in extended position or retracted position. 4. A flexible shelter as defined in claim 1 wherein said second means of support comprises:
- an end-of-assembly structure comprising a single arch mounted on two jambs, themselves mounted on end columns assembly, each of said end of assembly column having an upper part and a lower part, said structure of end of assembly being intended to be arranged according to a plane vertical, - said end of assembly column being attached, in said lower part, pivotally to said bottom of said last cross, and slidably at said top of said last cross, by a groove allowing the longitudinal sliding of said top of said last cross, - said simple arch having a wheel located at the bottom of the said side walls and further having a hook hole for insert a hook intended to anchor to the ground. 5. A flexible shelter as defined in claim 2 wherein said anchor column is rectangular in shape and has a first hole in the center of its length to insert said second means of pivot, a second hole at its lower end to insert said first pivot means, - said anchor column being fixed to said support point by a rigid link in the shape of an "L", fixed by one of the sides of the "L" by screw, the other side having a pivot hole to accommodate said anchor column by means of said second pivot means. 6. A flexible shelter as defined in claim 3 wherein said storage box has:
- a shape significantly larger than that of said arches to pinion, to allow entry and exit from the shelter of said storage box, - sufficient depth to allow full entry said flexible shelter during storage, - a rigid front, in the shape of said storage box, fixed on said end-of-assembly column, and which rests on said storage box, during storage, thus closing said storage box. 7. A flexible shelter as defined in claim 3 of which said means of movement comprises a number of aligned wheels, placed under said bottom of said segments, for rolling on the ground, and intended to allow manual movement of said series of cross of said shelter, when it comes out, by pulling manually by said front part to a deployed position, said means of movement also comprising a mechanical means of movement to said storage position, comprising:
- a cable fixed to the center of said end of assembly column and intended to retract said shelter and to store said shelter during its non-use, said cable passing through a number of pulleys and connected to a winch mounted on the rear part of said gearbox storage, one of said pulleys being fixed to said part rear of said storage box and intended to align said cable and said series of crosses parallel to said shelter, and according to an inclination of the shelter given by said means alignment, - said winch comprising a manual activation means located at an easy-to-reach height for operation. 8. A flexible shelter as defined in claim 7 of which said winch is located under said widened arch, aft at center, including:

- a means of adaptation to a motor - a cable fixed to said column at the end of the structure in the middle of its vertical length, the said middle of each cross being joined by pivotally and having a spacer which creates a space between said segments for the passage of said movement cable between said segments to end on said pulleys and come to attach to said winch. 9. A flexible shelter as defined in claim 1 of which said pairs of crosses define an articulated structure, which operates like a pantograph formed by alternating simple arches and gabled arches that unfold, stow and have a means of canvas on their exterior, to protect against bad weather, and including:

- travel limit cables of pre-determined length and located at said top and bottom of said segments and intended to maintain the system in the deployed position. 10. A flexible shelter as defined in claim 1 wherein said arches include simple arches composed of tubes of rigid material having the shape of an arch generally rectangular with two parallel side walls and vertical, connected or not by a perpendicular horizontal segment, and gabled arches made of rigid material tubing having the shape of an arch which comprises two parallel side walls with on their top, a pinion which makes an obtuse lateral angle to the junctions of said side walls and a central obtuse angle in the tip of said pinion. 11. A flexible shelter as defined in claim 1 wherein said series of crosses includes arches thus joined: a first simple arch is connected in its center with the center of a first gabled arch, this gabled arch having its end upper tied to the upper end of a second arch simple, while its lower end is tied to the end lower of a third simple arch; the first single arch being bonded at its lower end to the lower end of a second gabled arch and at its upper end to the upper end of a third gabled arch and so on suite, the second and third simple arches being connected respectively in their center with the second and third arches gabled through pivot means. 12. A flexible shelter as defined in claim 9 wherein said canvas means comprises a canvas attached to said pantograph on the above said gabled arches by sleeve ties and at the low on travel limit cables by movable ties in form of rings. 13. A flexible shelter as defined in claim 12 wherein said canvas has a canvas rim which is fixed in said box on a perimeter linking said shelter to said box of storage and intended to hide the space between the top of said arches and the interior of said box. 14. A flexible shelter as defined in claim 3 wherein said rigid facade comprises an arch with two side walls, said arch being disposed vertically, a jamb having on its face oriented towards said last cross a rectangular reinforcement vertical having a top and a bottom, said bottom having a pivot intended to receive said bottom segment of said last cross and said top having a vertically oriented slit intended slidably receiving said top segment of said last cross. 15. A flexible shelter as defined in claim 1 wherein said second support means comprises sliding adjustment means of said crosses to a front arch, intended to close said box disturbance.