FR2704590A1 - Garden shed with canvas with two rollable slopes. - Google Patents

Abstract

The light shelter is of the type comprising a fixed structure and mobile elements, the fixed structure being composed essentially of substantially vertical masts (1 and 2), optionally provided with feet (3 and 4), supporting the mobile elements associated with means control, in particular for turning and stopping the cylindrical tube (5). The shelter is characterized in that the movable elements comprise two arms (11-13 and 10-12) and two of these of the same pair are articulated on a part (31-32) which is mounted to slide longitudinally by relative to the mast (1-2), mechanical means kinematically connected to the mobile elements being provided to move the sliding parts (31 and 32) relative to the masts (1 and 2).

Description

GARDEN SHELTER WITH TWO-SLOPE CANVAS

WIND-UP

  Light shelters are already known comprising a

structure and at least one canvas.

  The word "canvas" is commonly used in practice to designate panels and sheets of any kind and not just canvas in the strict sense. It can be, in particular, synthetic fabrics, or even non-woven products such as sheets of

synthetic materials.

  This is why we will use here the word "canvas" in

  also giving it the broadest meaning.

  The shelters to which the invention relates have their own stability and are not fixed to a construction,

unlike blinds.

  They are intended for the sun protection of outdoor spaces: gardens and terraces, poolsides, market stalls, cafes and restaurants terraces, pedestrian streets, fairs, etc. The structure generally comprises two masts supporting in height a support which joins them together and which carries the canvas. Most often, the masts have feet,

  sometimes weighted, to rest on the ground.

  You can easily change their layout and orientation and they can be disassembled to be

stored during winter.

  However, it is advantageous to be able to modify the surface of the deployed fabric other than by disassembly

  total for a period of several months.

  We understand, in fact, that it is useful to be able to deploy the canvas when there is a big sun and to be able to remove it when the sun has turned and that we

found in the shade.

  However, originally, the light shelters of this type called "garden sheds", were comparable to very large umbrellas with two feet, with adjustable rectangular canvas

but not eclipsable.

  To improve this somewhat primitive set, we have

  thought to give it the characteristics of a banne,

  ie to stretch the fabric between a winding tube and a

  load bar supported and guided by articulated arms.

  The only real difference between such a shelter and a conventional awning comes from the fact that a awning is fixed to a construction and has only one slope of canvas while a garden shed has two roof slopes, the canvas s '' winding and unwinding the tube symmetrically from

each side of it.

  The disadvantage of such a solution is that it requires a very rigid structure allowing the articulation of the articulated arms and ensuring the stability of the assembly separately from the winding tube, the independence of which is preserved, in particular so that it can be controlled

  rotation by means of a crank winch for example.

  In other words, such a shelter must have a self-supporting structure to which two

  awning mechanisms sharing a single winding tube.

  We thus obtain a product of much better quality than the large parasols which are only mobile and foldable around a single central pole but, as simplified and lightened as such a pole can be,

the set has a high cost.

  The present invention provides a new solution which makes it possible to produce a product having both

  the qualities of the banners while reducing the cost.

  To this end, the subject of the invention is a light shelter, of the type comprising a fixed structure and mobile elements, the fixed structure essentially consisting of substantially vertical masts, possibly provided with feet, supporting the mobile elements, which include: * a cylindrical tube supported in height by the masts and rotatably mounted along its axis, * two divergent deployable canvas panels secured to the cylindrical tube by one of their edges, * two lateral load bars located on either side of the cylindrical tube, parallel to the latter, and each subject to one of the two canvas panels by that of the edges thereof which is opposite to the previous one, * rigid support and guide arms associated in two pairs, each of them being formed of two arms located in a vertical plane and coupled in compass whose close ends are articulated with respect to the same mast, while the other two extr emitted from each pair are connected to two different load bars, these being likely to be between two extreme positions called "closing" respectively in which the load bars are raised and close to the cylindrical tube and the canvas panels erased , and "opening" in which the load bars are lowered and away from the cylindrical tube and the canvas panels deployed, these mobile elements being associated with control means, in particular for the rotation and stopping of the tube cylindrical, shelter characterized in that the two arms of the same pair are articulated on a part which is slidably mounted longitudinally relative to the mast, mechanical means kinematically connected to the mobile elements being provided for moving the sliding parts

compared to the masts.

  According to other characteristics of the invention: - the means intended to move the sliding parts consist of at least one independent assembly comprising a link and at least one reference located on a mast, the link being subject to the sliding part of said mast ; - The means for moving the sliding parts consist of at least one assembly located near a mast, comprising a link engaged on a pulley kinematically connected to the cylindrical tube and one end of which is subject to the sliding part of said mast; - The means intended to move the sliding parts consist of the arms themselves, each pair of which is associated with at least one link, one end of which is articulated to a fixed pivot of the same mast while the opposite end is articulated to one of the two support arms, themselves articulated on the same sliding part of said mast; - The means for moving the sliding parts constituted by the arms themselves comprises an assembly composed of two links, two ends of which are articulated with two different fixed pivots, while the opposite ends are articulated with the two support arms; - the two ends of the two links are articulated between them and at a common pivot; - the sliding parts are associated with rectilinear guides distinct from the masts themselves; - The shelter comprises means for immobilizing the sliding parts with respect to the masts, these means being constituted by at least one stop integral with each mast at the top of the latter, so that the sliding part is blocked against it when the load bars are in their open position; - The stop is constituted by a part on which are articulated the ends of the two rods which connect a mast to two support arms of the load bars; - the stop is located at least at the level of a virtual line which joins the two load bars when these are in their open position; - the means to immobilize the parts

  are formed by the support arms themselves

  same which are of the self-locking type.

  The invention will be better understood by the

  description below made with reference to the accompanying drawing.

  Of course, the description and the drawing are not given

  as an indicative and non-limiting example.

  Figure 1 is a schematic perspective view of a shelter according to the invention in the position of

deployment.

  Figure 2 is a partial schematic view showing a kinematic connection between the canvas tube and a sliding part, by means of a strap engaged on

a pulley.

  Figure 3 is a schematic side view

  showing the shelter of Figure 1 in the closed position.

  Figure 4 is a schematic profile view showing the shelter of Figure 3 in an intermediate position between its closed position and its position

deployment.

  Figure 5 is a schematic profile view showing the shelter of Figures 3 and 4 in the deployed position. Figure 6 is a schematic perspective view of a shelter according to the invention, according to another embodiment, the shelter being in the deployed position. FIG. 7 is a partial schematic view showing a kinematic connection between a load bar and a sliding part, by means of rods which

  connect the support arms to a mast.

  Figure 8 is a schematic side view

  showing the shelter of Figure 6 in the closed position.

  Figure 9 is a schematic profile view showing the shelter of Figure 8 in an intermediate position between its closed position and its deployed position. Figure 10 is a schematic profile view showing the shelter of Figures 8 and 9 in the deployed position. Referring to Figure 1, we see that a shelter according to the invention comprises a fixed structure which is composed of two masts 1 and 2 secured to feet 3 and 4 and which supports movable elements. These include a horizontal tube 5 joining the two masts 1 and 2 at their upper part, a tube which is rotatably mounted in bearings fixed to the masts 1 and 2 and of any known type of

  those skilled in the art, so they will not be described.

  Two canvas panels 6 and 7 are rolled up and fixed to the tube 5 in such a way that they deploy together when the tube 5 is driven in a direction of rotation and that they fold back together when the tube is

  driven in the opposite direction of rotation.

  It can be two independent panels and fixed together to the tube 5 or a single panel folded in half in the width direction and fixed to the tube 5 near its fold. The free edge of the panels 6 and 7 is connected to a load bar, respectively 8 and 9 supported and guided by rigid arms 10-11 and 12-13 articulated on the one hand to the masts 1 and 2 and on the other hand to the load bars 8 and 9. The arms 10 and 12 form a pair articulated by a vertex common to the mast 2, while the opposite free ends of the arms 10 and 12 are articulated at one of the

  ends of load bars 8 and 9.

  A person skilled in the art knows how to produce different mechanisms allowing the tube 5 to be rotated: cord and pulley, crank and winch, electric motor, etc. Here, the device known per se has been chosen consisting in subjecting the tube 5 to the permanent stress of a spring 20 which is placed inside the tube 5 and which is mounted so that it recalls the tube 5 towards its winding position, that is to say in the position shown in Figure 3. The spring 20 is therefore strongly tensioned in the position of Figures 1, 2 and 5

  and slightly stretched in the position of Figure 3.

  It is then only possible to keep the canvas panels 6 and 7 deployed if the shelter is provided with members

holding.

  Any known mechanism can be used, including that which makes it possible to automatically block the tube 5 to neutralize the spring 20 although it is tensioned, the

  unlocking is also done automatically.

  Such a mechanism requires control means

  (also well known) such as a cord.

  In principle, the force due to the spring 20 is sufficient to maintain the shelter in the closed position of FIG. 3. Nevertheless, one may wish for greater security, in particular when the shelter remains outside and that

  we fear strong gusts of wind.

  It is observed that the arms 10-12 on the one hand and 11-13 on the other hand are articulated on a part respectively 31

  and 32 sliding mounted on the corresponding mast 1-2.

  Sliding parts control means 31 and 32 are provided in coordination with the rotation of the tube 5. The operation of the shelter is done, with this example, by means of a crank 40 engaged with a winch 41 of known type , fixed to mast 2 and engaged with the tube

winding 5.

  The tube 5 is rotatably mounted in bearings of known type (not shown) integral with the masts 1 and 2,

  which is shown schematically by a simple pin 50.

  Between the end of the tube 5 and the mast 1, there is a pulley 51 linked to the tube 5 in order to rotate with it and receiving one end of a strap 52 the other end of which is fixed to the sliding part 31 by a rivet 53. The passage from the closed position of FIG. 3 to the open position of FIG. 5 takes place in the following manner: By actuating the crank 40, the tube 5 is driven in rotation according to arrow F1 and the canvas panels 6 and 7 take place according to arrows F2 and, due to the weight of the load bars 8 and 9, the parts 31 and 32, the arms 11-13 and 10-12 and the load bars 8 and 9

go down according to the arrows F3.

  The operation of the tube 5 by the crank 40 and the winch 41 to drive said tube 5 according to arrow F1 simultaneously causes the rotation of the pulleys 51 located at the two ends of the tube 5 and, consequently, the rise of the sliding parts 31 and 32 according to the arrow F4 by the traction exerted on them by the straps 52 which are wound on the pulleys 51, while the panels of

  canvas 6 and 7 are deployed according to arrow F2.

  In the open position of Figures 1 and 5, the shelter is fully extended and must, of course, be

stable.

  To this end, it is useful, or even essential, to provide means suitable for immobilizing the sliding parts 31 and 32 when they are in

  high position, against stops 37 and 38.

  Many known means can be used which are within the reach of those skilled in the art. One can thus provide hooks capable of joining a sliding part and a stop, or place a screw in a tapped hole radially in each stop 31-32 in order to be able to tighten it against the corresponding mast, etc. We see in Figures 4 and 5 that we have provided the stop 37 on the mast 1 (and therefore also the stop 38 on the mast 2) but this may be unnecessary if the winch 41 and / or the crank 40 can be blocked because, then, the sliding parts 31 and 32 as well as the arms 11-13 and

  -14 are held stationary by the straps 52.

  We know that there are so-called "irreversible" winches on the market because if they allow the movement of the crank 40 to be transmitted to the tube 5 (indifferently in one of the two opposite directions of rotation), they are opposed by however the transmission of any movement from tube 5 to the

crank 40.

  Note that this embodiment makes it possible to adjust the deployment of the canvas panels 6 and 7 since it is possible to immobilize the tube 5 and the pulleys 51 in any intermediate position between the fully closed position and the position of

maximum deployment.

  It is also possible not to permanently fix such a stop but to provide blocking means allowing height adjustment of the stops, in particular to compensate for any dimensional variations of the panels 6 and 7, due to the lack of precision in the manufacturing operations or else coming from the different canvas thicknesses, thicknesses which can vary from one production to another or which can result from a choice in a range of fabrics of different qualities. In fact, the more stretched the canvas panels 6 and 7, the greater the force they exert on the load bars 8 and 9 and the more the sliding parts 31 and 32 are biased towards the stops 37 and 38, the more the canvas panels 6 and 7 are

  distended, the more it is necessary to reassemble the stops 37 and 38.

  To ensure the stability of the canvas panels 6 and 7 when they are deployed (in particular so that the shelter remains insensitive to the wind), it is possible to provide a winch 41 of irreversible type as said above or arms of

  self-locking type 10-12 and 11-13 support.

  Arms of this type are well known in themselves and will therefore not be described in detail. They present, in pairs, an angular end-of-travel stop which gives them, two by two, a stiffness opposing their

accidental folding.

  In this case, the self-locking arms cooperating two by two would be on the one hand the arms 10 and 12 and

on the other hand the arms 11 and 13.

  The embodiment which has just been described provides both means for moving the sliding parts 31 and 32 relative to the masts 1 and 2 and the kinematic connection of these means with the tube.

winding 5.

  In a simplified version, the winding tube 5 remains independent and the traction links (cables, cords, straps, etc.) fixed by one of their ends to the sliding parts 31 and 32 pass over pulleys independent of the tube 5 , the other end constituting a descending strand on which we can act at the

  hand to hoist the sliding parts 31 and 32.

  Referring now to Figures 6 to 10, we see another embodiment of the invention which also provides means for automatically moving the sliding parts 31 and 32 when rotated

the tube 5.

  Instead of taking the generator movement on the tube 5 itself as described with reference to Figures 1

  at 5, we take it on arms 11-13 and 10-12 since these

  these necessarily move, by pivoting, when the load bars 8 and 9 move because of their weight as soon as the tension of the canvas panels 6 and 7 is released. On the masts 1 and 2 are fixed parts 61 and 62 to which are connected two assemblies each composed of two links respectively 63-65 and 64-66 constituting two compasses, the free ends of which are articulated to the arms 10, 11, 12 and 13. To maneuver the shelter in order to do so move from its closed position to its open position (Figures 8 to 10) the tube 5 is actuated by means of the crank 40 and the winch 41, which has the effect of unwinding the canvas panels 6 and 7, releasing thus the load bars 8 and 9 due to their weight. These force the arms 11-13 and 10-12 to pivot so that their ends articulated to the load bars 8 and 9 deviate from their original position, which they can only do here if the sliding parts 31 and 32 rise along the masts 1 and 2, due to the presence of

rods 63-65 and 64-66.

  When the tube 5 rotates in the direction of the arrow F1, the canvas panels 6 and 7 deploy in the direction of the arrows F2, the load bars 8 and 9 as well as the arms 11-13 and 10-12 pivot in the direction of arrows F3, the sliding parts 31 and 32 rise according to arrow F4, the rods 63-65 and 64-66 are

straighten according to arrows F5.

  The open position is positively determined when the sliding parts 31 and 32 reach the fixed parts 61 and 62 which are positioned in such a way that they constitute stops when the arms 11-13 and 10-12 are in their desired orientation,

  that is to say substantially horizontal.

  In the shelter open position (Figures 6 and), the rigid rods interposed between the fixed parts 61 and 62 and the arms 11-13 and 10-12 are real flying buttresses, or struts, which

  oppose accidental folding of the shelter.

  To move the shelter from its open position (Figure 10) to its closed position (Figure 8), the tube 5 is pivoted in the opposite direction to the arrow 1 by means of the crank 40 and the winch 41 , which causes the winding of the canvas panels 6 and 7, which exert a traction on the load bars 8 and 9 and all the movements which have been described above

  occur exactly in reverse.

  Sliding parts 31 and 32 have been described above directly engaged on masts 1 and 2 assumed to be cylindrical. One can also provide separate guides from the masts themselves, such as profiles or straight rails fixed to the masts by welding, riveting, bonding.

or other means.

  It is, of course, advantageous to produce the masts 1 and 2 in the form of hollow sections according to all

  desired section, including circular.

  These profiles, when they are of open section or have a groove, can be used as guides for sliding parts having a part

engaged inside.

R E V E ND I C A T IONS

  1- Light shelter, of the type comprising a fixed structure and mobile elements, the fixed structure consisting essentially of substantially vertical masts (1 and 2), possibly provided with feet (3 and 4), supporting the mobile elements, which include: * a cylindrical tube (5) supported in height by the masts (1 and 2) and rotatably mounted along its axis, * two divergent deployable canvas panels (6 and 7) secured to the cylindrical tube (5) by one of their edges, * two lateral load bars (8 and 9) located on either side of the cylindrical tube (5), parallel to the latter, and each subject to one of the two canvas panels (6 and 7) by that of edges of these which is opposite to the previous one, * rigid support and guide arms associated in two pairs, each of which being formed by two arms (11-13 and 10-12) situated in a vertical plane and coupled as a compass whose close ends are articulated with respect to a same mast (1-2), while the other two ends of each pair are connected to two different load bars (8 and 9), these being likely to be between two extreme positions called respectively "closing" in which the load bars (8 and 9) are raised and close to the cylindrical tube (5) and the canvas panels (6 and 7) erased, and "opening" in which the load bars (8 and 9) are lowered and away from the cylindrical tube (5) and the canvas panels (6 and 7) deployed, these mobile elements being associated with control means, in particular for the rotation and stopping of the cylindrical tube (5), shelter characterized in that the two arms (11-13 and

  -12) of the same pair are articulated on a part (31-

  32) which is slidably mounted longitudinally relative to the mast (1-2), mechanical means (51 to 53, 61 to 66) kinematically connected to the mobile elements being provided for moving the sliding parts (31 and 32) by

compared to the masts (1 and 2).

  2- Shelter according to claim 1, characterized in that the means for moving the sliding parts (31 and 32) are constituted by at least one independent assembly comprising a link and at least one reference located on a mast (1-2) , the link being subject to the

  sliding part (31-32 of said mast (1-2).

  3- shelter according to claim 1, characterized in that the means for moving the sliding parts (31 and 32) consist of at least one assembly located near a mast (1-2), comprising a link (52) engaged on a pulley (51) kinematically connected to the cylindrical tube (5) and one end of which is subject to the

  sliding part (11-13, 10-12) of said mast (1-2).

  4- Shelter according to claim 1, characterized in that the means for moving the sliding parts (31 and 32) are constituted by the arms (11-13 and 10-12) themselves, each pair of which is associated with at least a link (63-65, 64-66), one end of which is articulated to a fixed pivot of the same mast (1-2) while the opposite end is articulated to one of the two support arms (11- 10 or 13-12), themselves articulated on the same

  sliding part (31-32) of said mast (1-2).

  - Shelter according to claim 4, characterized in that the means intended to move the sliding parts (31 and 32) constituted by the arms (11-13 and -12) themselves comprise an assembly composed of two links (63-65 and 64-66) whose two ends are articulated to two different fixed pivots, while the opposite ends are articulated to the two arms of

support (11-13 and 10-12).

  6- Shelter according to claim 5, characterized in that the two ends of the two links (63-65 and 64-66) are hinged together and to a common pivot. 7- Shelter according to claim 1, characterized in that the sliding parts (31 and 32) are associated with rectilinear guides separate from the masts (1 and 2)

proper.

  8- Shelter according to claim 1, characterized in that it comprises means for immobilizing the sliding parts (31 and 32) relative to the masts (1 and 2), these means being constituted by at least one stop (37-38 ) secured to each mast (1-2) at the top of it, so that the sliding part (31-32) is locked against it when the load bars (8 and 9)

  are in their open position.

  9- Shelter according to claims 4 and 8

  characterized in that the stop is constituted by a part (61-62) on which the ends are articulated

  two links (63-65 and 64-66) which connect a mast (1-

  2) two support arms (11 and 13, 10 and 12) bars

load (8 and 9).

  - Shelter according to claim 8, characterized in that the stop (37- 38) is located at least at the level of a virtual line (x) which joins the two load bars (8 and 9) when these are in their open position. 11- Shelter according to claim 8, characterized in that the means for immobilizing the sliding parts (31 and 32) are constituted by the support arms (11-13

  and 10-12) themselves which are of the self-locking type.