EP3379968B1 - Foldable head-type parasol, and method for folding the head of such a parasol - Google Patents

Foldable head-type parasol, and method for folding the head of such a parasol Download PDF

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Publication number
EP3379968B1
EP3379968B1 EP16813081.3A EP16813081A EP3379968B1 EP 3379968 B1 EP3379968 B1 EP 3379968B1 EP 16813081 A EP16813081 A EP 16813081A EP 3379968 B1 EP3379968 B1 EP 3379968B1
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EP
European Patent Office
Prior art keywords
parasol
hoop
head
peripheral
support structure
Prior art date
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Application number
EP16813081.3A
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German (de)
French (fr)
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EP3379968A1 (en
Inventor
Xavier Aubry
Cyrille JOURDAIN
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Individual
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Individual
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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B11/00—Umbrellas characterised by their shape or attachment
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B19/00—Special folding or telescoping of umbrellas
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B23/00—Other umbrellas
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B25/00—Details of umbrellas
    • A45B25/02—Umbrella frames
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B11/00—Umbrellas characterised by their shape or attachment
    • A45B2011/005—Umbrellas characterised by their shape or attachment characterised by their shape
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B19/00—Special folding or telescoping of umbrellas
    • A45B2019/007—Special folding or telescoping of umbrellas without stretchers
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B23/00—Other umbrellas
    • A45B2023/0012—Ground supported umbrellas or sunshades on a single post, e.g. resting in or on a surface there below
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B23/00—Other umbrellas
    • A45B2023/0093—Sunshades or weather protections of other than umbrella type

Definitions

  • the invention relates to the field of devices for shelter against the sun's rays and relates more particularly to a parasol of the type with a folding head.
  • the invention also relates to a method of folding the head of such a parasol.
  • parasols are known, that is to say devices provided with a foot intended to be fixed to the ground, and bearing a head at a distance from the ground.
  • the head typically consists of a plurality of ribs extending radially around a central axis, to which is fixed a fabric capable of at least partially filtering the sun's rays when it is struck by said rays.
  • the ribs are generally fixed in an articulated manner, on the one hand, to the foot, and on the other hand, to a sliding ring, fitted on the foot, capable of occupying two extreme positions. According to a first extreme position of the ring, the ribs are folded over the foot, as is the canvas, and according to a second extreme position the ribs are deployed radially around the foot, exerting forces on the canvas in order to stretch it and to give it the shape of a spherical cap. When the canvas is stretched, it projects a shaded surface on the ground, thus forming a shelter from the rays of the sun.
  • wind resistance is meant the surface on which pressure forces are exerted by the wind. These pressure forces generate moments of force on the whales. These moments of force can generate mechanical stresses in the parasol head, and cause damage to said head due to the low resistance of the ribs to mechanical stresses.
  • the pressure forces exerted on the parasol's fabric can, if the mast is poorly fixed to the ground or if said forces are sufficiently large, generate a lift phenomenon displacing the pole. parasol in the direction of the wind, posing obvious safety problems.
  • Parasols are disclosed, for example, in documents WO 2005/084480 A1 , US 2011/099692 A1 , US 6,202,659 B1 , US 4 836 232 A or FR 2 700 802 A1 .
  • the object of the present invention is to provide a parasol suitable for use when the wind is blowing, without presenting danger problems or deteriorating.
  • Another objective of the invention is to provide a parasol capable of projecting a shaded surface onto the ground, which can be fully exploited by a user.
  • An additional objective of the present invention is to provide a parasol which is quick and easy to use.
  • the present invention relates, according to a first aspect, to a parasol comprising a foot comprising a mast, and a head, integral with one end of said mast, comprising a fabric capable of filtering at least part of the sun's rays and a support structure. of said canvas.
  • Said support structure is deformable between a first so-called deployed configuration, in which the canvas is stretched, and a second so-called folded configuration, in which the canvas is folded.
  • the support structure comprises a first arch closed on itself, called a “peripheral arch”, forming part of a plane in the deployed configuration of the support structure, and the canvas is fixed inside the peripheral arch. such that said canvas is stretched inside said peripheral arch in the deployed configuration of the support structure.
  • the support structure also comprises a second arch, called an “internal arch”, closed on itself, the internal arch being arranged inside the peripheral arch, contiguous at a point of internal tangency, and substantially coplanar with it. the latter when the support structure occupies its deployed configuration.
  • the parasol When the support structure occupies its deployed configuration, the parasol is in the position of use, that is to say the fabric is able to project a shaded surface on the ground.
  • the parasol head advantageously has a substantially planar geometric shape, capable of being placed substantially parallel to the direction of the wind.
  • the head thus placed therefore has little or no wind resistance, the wind pressure forces on said head are therefore absent or relatively low. Thanks to these characteristics of the parasol head, the parasol can be used when the wind is blowing, without presenting any danger problems or deteriorating.
  • the internal arch makes it possible to provide mechanical resistance against the forces exerted on the support structure, in particular generated by the wind following its direction.
  • the invention also meets the following characteristics, implemented separately or in each of their technically operative combinations.
  • the peripheral arch is elastically deformable between a position, called “free position”, in which it is deployed so as to stretch the canvas, and a position called “constrained position”, in which it is folded over on itself in a substantially planar conformation.
  • the free position of the peripheral arch corresponds to the deployed configuration of the support structure, and the constrained position of said peripheral arch corresponds to the folded configuration of the support structure.
  • the peripheral arch being elastically deformable, once deformed, it tends to resume the shape it occupied before deformation and generates forces for this purpose.
  • the mechanical stresses to which the peripheral arch is subjected in the constrained position oppose these forces so as to cancel them and to maintain said arch in the constrained position.
  • the peripheral arch is therefore adapted to resume its initial shape spontaneously when it is no longer subjected to mechanical stresses, and therefore to deploy and stretch the canvas. Therefore, it is easy and fun to put the parasol in the use position.
  • the canvas is deployed faster than that of state-of-the-art parasols.
  • the parasol is configured such that, when the peripheral hoop occupies its constrained position, said peripheral hoop is elastically deformed so as to fold the canvas back on itself and to have a substantially planar shape.
  • the parasol then occupies a position of storage in which it is able to be easily transported and stored.
  • the head is made integral with said end of the mast by an articulation system comprising a first articulation means fixed on the head and a second articulation means fixed on the mast, said first and second articulation means cooperating with each other.
  • first and second articulation means are adapted to form an articulation thanks to which the head is able to adopt different positions relative to the mast.
  • the first articulation means is arranged at the periphery of the head.
  • the canvas when the parasol is in the position of use, the canvas is able to project a shaded surface on the ground, entirely usable by a user, insofar as the mast is placed outside said shaded surface.
  • the first articulation means is fixed to a spacer, fixed inside the internal arch so as to extend between two diametrically opposed points of the internal arch.
  • the parasol is easy to design and install.
  • the cost of the parasol is relatively low, and any maintenance operations are facilitated, such as the replacement of parts.
  • the first articulation means and the second articulation means are configured so as to allow the head to be movable relative to the foot according to at least one degree of freedom in rotation.
  • the articulation means are preferably configured so that the head is movable in rotation relative to the mast according to a mechanical connection of the ball joint type, in order to be able to modify the orientation of the head relative to the mast according to three axes of rotation.
  • the head can easily be arranged substantially parallel with respect to the direction of the wind so that it has little or no wind resistance.
  • the head can advantageously be attached to the foot in a removable manner, so as to be able to be detached from the foot.
  • the support structure comprises a third arch closed on itself, called an “intermediate arch”, arranged between the peripheral and internal arches, fixed at a point of internal tangency of the arches. peripheral, and fixed to the canvas on at least a portion of its periphery.
  • the intermediate arch is elastically deformable between a position, called “free position”, in which it is deployed, and a position called “constrained position”, in which it is folded back on itself in a substantially planar configuration.
  • the free position of the intermediate arch corresponds to the deployed configuration of the support structure, and the constrained position of said intermediate arch corresponds to the folded configuration of the support structure.
  • the intermediate arch is substantially coplanar with the peripheral arch.
  • the intermediate arch makes it possible to provide additional resistance against the forces exerted by the weight of the head on the support structure, more or less high according to its dimensions, and, if necessary, by the wind on the structure Support.
  • the mast is of adjustable length.
  • the length of the mast can be minimal, and the head folded against the mast, so as to reduce the size of the parasol.
  • the parasol can therefore be transported and stored easily.
  • the mast comprises a means for fixing in the ground.
  • the support structure comprises an intermediate arch and the peripheral arch is manipulated during the implementation of the method of folding the parasol head, this manipulation causes deformations of the intermediate arch which are substantially similar to those undergone. by the peripheral arch.
  • the present invention also relates to a method of unfolding the head comprising a step of releasing the support structure in which the user acts on the attachment means in order to restore mobility to the support structure so that it regains spontaneously its deployed configuration.
  • the present invention relates to a parasol 10, as represented by the figures 1 to 3 in a non-limiting exemplary embodiment, comprising a head 20 of parasol 10, referred to as “head” in the remainder of the text, secured to a foot 30 of parasol 10, referred to as “foot” in the remainder of the text. More precisely, the foot 30 comprises a mast 32 extending between two opposite ends, the head 20 being integral with one of these ends.
  • the head 20 is formed by a support structure 21 comprising at least a first peripheral arch 210 closed on itself, elastically deformable.
  • the term “peripheral arch closed on itself” is understood to mean that the peripheral arch 210 has a geometric shape, the contour of which is closed, as represented by the figure. figure 1 , so as to define an interior area.
  • the peripheral arch 210 is able to be elastically deformed, from a position called “free position”, to a position called “constrained position”, when it is subjected to forces of sufficient intensity, that is to say. say greater than a given value.
  • the peripheral hoop 210 is advantageously able to spontaneously resume its free position.
  • the free position is the position occupied by the peripheral arch 210 before deformation, that is to say, a position in which it is deployed. When it occupies its deployed position, the peripheral arch is inscribed in a plane.
  • a fabric 22 capable of filtering at least part of the sun's rays is fixed inside the peripheral arch 210.
  • the peripheral arch 210 occupies its free position, and the canvas 22 is stretched.
  • said peripheral arch 210 preferentially exerts tension forces over the entire periphery of the fabric 22.
  • the peripheral hoop 210 is engaged in one or more housings developing along the periphery of the canvas 22.
  • the peripheral hoop 210 can be fixed to the canvas 22 by any known fixing means. of the person skilled in the art, permanent or removable.
  • the canvas 22 comprises a face 221 called “upper face”, which is intended to receive the sun's rays when the parasol 10 is in the position of use, and a face 222 called “lower face”, which is intended to remain opposite. from the ground when the parasol 10 is in the use position.
  • the support structure 21 also comprises a second arch, called an “internal arch” 211, closed on itself so as to define an interior area, and fixed to the canvas 22, for example, against a face 221 or 222 of the canvas. 22.
  • an internal arch 211 is disposed inside the peripheral arch 210, contiguous at an internal point of tangency 23, and is substantially coplanar with the latter.
  • the internal arch 211 is preferably of circular shape.
  • the internal arch 211 can be made of any elastically deformable material.
  • the support structure 21 may include a third hoop called an “intermediate hoop” 212 disposed between the peripheral 210 and internal 211 hoops.
  • the intermediate hoop 212 is closed on itself, so so as to form an interior area, and fixed to the canvas 22, for example, against one of its faces 221 or 222.
  • the intermediate arch makes it possible to provide additional resistance against the forces exerted by the weight of the head on the support structure, more or less high according to its dimensions, and, if necessary, by the wind on the structure Support.
  • the intermediate hoop 212 is elastically deformable between a position, called “free position”, in which it is deployed so as to stretch a portion of the canvas, and a position called “constrained position”, in which it is folded back on itself in a substantially flat conformation.
  • the intermediate arch 212 can be made from any elastically deformable material.
  • the area of the interior area delimited by the intermediate arch 212 is twice as large as the area of the interior area delimited by the internal arch 211.
  • the hoops 210, 211 and 212 are disposed with respect to each other contiguously at a point of internal tangency 23.
  • the point of tangency 23 is called “point of internal tangency” insofar as the intermediate hoops 212 and interior 211 are respectively arranged inside the peripheral arch 210.
  • the peripheral hoop 210 is the hoop most subject to mechanical stresses, such as the forces generated by the weight of the head and / or the forces generated by the wind. It is therefore dimensioned to have greater mechanical strength than the intermediate 212 and inner 211 hoops.
  • the cross section of the peripheral hoop 210 therefore has larger dimensions than the cross section of the intermediate hoop 212.
  • the cross section of the peripheral hoop 210 can be dimensioned to have a greater mechanical strength than the internal arch 211, its cross section may therefore have dimensions greater than the dimensions of the cross section of the internal arch 211.
  • the peripheral 210 and intermediate 212 arches are substantially of ovoidal geometric shape. More precisely, said peripheral 210 and intermediate 212 arches develop respectively in two transverse portions joined together by two longitudinal portions symmetrical with respect to an axis of symmetry S. The two transverse portions each have the geometric shape of a circular arc, the radii of said arcs being of different values from one another.
  • the peripheral 210 and intermediate 212 hoops are fixed to one another, at the internal point of tangency 23, by one of their transverse portions. More particularly, as illustrated by figure 1 , said peripheral 210 and intermediate 212 hoops are fixed to the internal point of tangency 23 by their respective transverse portion, the radius value of which is the smallest.
  • the head 20 is made integral with the mast 32 by an articulation system 24.
  • the articulation system 24 can be fixed at the periphery of the peripheral arch 210.
  • the articulation system 24 comprises a first articulation means 243 fixed on the head 20 and a second articulation means 31 fixed on the mast 32.
  • the first articulation means 243 is fixed to a spacer 240 fixed inside the internal hoop 211 so as to connect two points of the diametrically opposed internal hoop 211.
  • the spacer 240 extends along a longitudinal axis, and comprises two opposite ends each respectively comprising an end face. Each end face advantageously comprises a notch 241, 242, intended to receive a portion of the internal arch 211.
  • the spacer 240 adjoins the internal tangent point 23 of the internal 211, intermediate 212 and peripheral 210 arches, via one of its ends called the “proximal end”, its other end, called the “distal end” being distant from said point of tangency interior 23, so that the mast 32 is eccentric with respect to the head 20.
  • the spacer 240 may not be contiguous to the internal point of tangency 23.
  • the notch 242 made on the face of the proximal end of the spacer 240 comprises several indentations so as to receive successively, juxtaposed to each other, the internal arch 211, the intermediate arch 212 and the peripheral arch 210.
  • the indentations are dimensioned so as to correspond to the dimensions of the straight sections of the peripheral 210, intermediate 212 and internal 211 arches.
  • the notch 241 made on the face of the distal end preferably comprises only a single indentation insofar as it is intended to receive only the internal arch 211.
  • the notches 241, 242, of the end faces may comprise only one indentation each.
  • the spacer 240 and the internal arch 211 are mechanically linked by an adjustment of the tight type, produced, for example, by a slight deformation of the internal arch 211, generating a tension for maintaining the spacer 240.
  • the spacer 240 can be mechanically linked to the internal arch 211 by any other fixing means known per se.
  • the second articulation means 31 is located at one of the ends of the mast 32, called the “upper end”.
  • the first articulation means 243 can comprise a sphere 244.
  • the sphere 244 is kept at a distance from the spacer 240 by means of a shaft 245 whose longitudinal axis extends, for example, perpendicularly to the longitudinal axis of the spacer 240, as shown. by the detail view of the figure 4 .
  • the shaft 245 is arranged in the vicinity of the proximal end of the spacer 240.
  • the spacer 240, the shaft 245 and the sphere 244 can be obtained in one piece, by molding.
  • the shaft 245 may be attached to the spacer 240 by a screw / nut type assembly or by any known assembly means, and the sphere 244 may be permanently attached to the shaft 245, for example. example, by collage.
  • the second articulation means 31 is intended to cooperate with the first articulation means 243, so that the head 20 is able to be movable relative to the foot 30 according to at least one degree of freedom in rotation.
  • first and second articulation means 243, 31 can form between them a mechanical link of the pivot type or a mechanical link comprising two degrees of freedom in rotation.
  • the articulation system 24 allows the articulation of the head 20 relative to the foot 30 according to a mechanical connection of the ball joint type.
  • the second articulation means 31 comprises a housing of complementary shape to the sphere 244, so that said sphere 244 is able to pivot in the housing along at least one axis of rotation.
  • the second articulation means 31 also comprises means for locking said sphere 244 in rotation.
  • the housing is provided with a clamping member capable of deforming said housing, within the limits of its elastic limit, so as to applying a clamping force on the sphere 244 sufficient to block said sphere 244 in rotation.
  • the head is attached to the foot in a removable manner, so that it can be detached from the mast.
  • a user can in particular use heads of different dimensions with a single foot.
  • the mast 32 is provided, at its other end, called the “lower end”, with a means 33 for fixing in the ground.
  • the fixing means 33 in the ground consists of a thread on a portion of the length of the mast 32, the cross section of which decreases towards the lower end of the mast 32.
  • the parasol 10 can be screwed into the ground. furniture or in any suitable housing so as to achieve a screw / nut assembly.
  • the fixing means 33 can be formed by any arrangement or device known to those skilled in the art, such as the conformation of the lower end in the form of a point.
  • the length of the mast 32 can be adjustable between two extreme minimum and maximum lengths, respectively represented by the figures 1 and 4 .
  • the mast 32 can be telescopic, so that it can be divided into at least two coaxial portions nested one inside the other and able to slide with respect to one another.
  • the mast 32 then comprises means for stopping the portions in translation from one another.
  • one of the portions is provided with a clamping member capable of deforming said portion so as to apply a clamping force on the other portion sufficient to block the portions in translation.
  • the mast 32 is divided into four portions, three of which are provided with clamping members.
  • the portions of the mast 32 can be fixed in an articulated manner to each other, so as to be able to respectively occupy a folded position in which they are contiguous to each other, over their entire length, and an unfolded position in which they are coaxial and adjoining each other at each of their ends.
  • the parasol 10 can advantageously occupy a position of use, in which the support structure 21 occupies its deployed configuration, as shown in figure 1 , the canvas 22 being deployed.
  • the canvas 22 is deployed and is intended to project a shaded surface on the ground, when struck by rays of the sun, in order to provide shelter to a user against said rays.
  • FIG 3 shows the parasol 10 in the storage position, the support structure 21 occupying a second configuration, called “folded configuration” and the mast 32 being adjusted so that its length is minimal.
  • the peripheral hoop 210 and the intermediate hoop 212 are elastically deformed, in the constrained position, so as to fold the canvas 22 back on itself, as described more precisely in the following section. text.
  • the parasol 10 is intended to be transported or stored.
  • the figures 5 to 8 respectively represent an embodiment of the successive steps of a method for folding the head 20 according to the invention.
  • the figure 5 shows a first step which consists in folding a point of each longitudinal portion of the peripheral arch 210 against one another.
  • the points are preferably chosen so that their projection orthogonal with respect to the axis of symmetry S passes through the interior area defined by the intermediate arch 212, and are preferably substantially symmetrical with respect to one another along the axis of symmetry S.
  • a torsional force is applied to the peripheral arch 210 so that respective portions of the upper 221 and lower 222 faces of the fabric 22 are simultaneously visible in the same plane.
  • Part of the head 20 is thus pivoted, substantially over one hundred and eighty degrees relative to another part of said head (20). These two parts correspond respectively to each of the upper 221 and lower 222 faces of the canvas 22.
  • the head then takes substantially the form of a lemniscate.
  • the two parts of the head 20 are then folded against one another, so that the portions of the upper 221 and lower 222 faces are arranged facing each other. , as represented by the figure 6 .
  • An intermediate arrangement is thus formed, in which the peripheral hoop 210, as it is deformed following these steps, forms two rings superimposed one against the other, as does the intermediate hoop 212.
  • the hoops 210, 211 and 212 are handled so that the intermediate hoop 212 is substantially concentric with the internal hoop 211 and that their diameter is substantially identical.
  • a third step consists in repeating the first and second steps carried out above, the two points to be folded against one another being two diametrically opposed points of the peripheral hoop 210, as illustrated by figure 7 .
  • the head 20 then has the shape of a disc, the diameter of which is substantially equal to the diameter of the internal arch 211, formed by a superposition of portions of arches.
  • peripheral 210 and intermediate arches 212 when the peripheral 210 and intermediate arches 212 are in the constrained position, they exert tension forces insofar as said peripheral 210 and intermediate arches 212 seek to return to their free position, that is to say say their initial, unfolded form.
  • the figure 8 shows a fourth step consisting in immobilizing the support structure 21 in its folded configuration resulting from the previous folding steps. Indeed, it is necessary to immobilize the peripheral 210 and intermediate 212 hoops to keep this shape.
  • This step of immobilizing the support structure 21 is carried out by an attachment means 25 opposing the tension forces exerted by the peripheral 210 and intermediate arches 212 aiming to bring them back to the free position.
  • the attachment means 25 comprises a strap fixed to the periphery of the head 20, intended to be placed on either side of the head 20 so that it diametrically surrounds said head 20.
  • the strap can be fixed at one of its ends to the internal tangent point 23 of the hoops 210, 211 and 212, and can include a means for removable fixing of the strap on itself at an attachment point.
  • the head 20 has reference means allowing a user to determine the position of the points of the peripheral arch 210 to be folded against one another during at least one of the steps described above.
  • These marker means can be colored marks fixed, for example, on the housing (s) developing along the periphery of the fabric 22.
  • peripheral 210 and intermediate 212 hoops are determined so that said hoops do not deform beyond their elastic limit during steps of folding the head 20.
  • deformation of these peripheral 210 and intermediate 212 hoops is always reversible.
  • the unfolding of the head 20 is carried out without any intervention by the user other than that consisting in releasing said support structure 21 from the means of tie 25.
  • the material constituting the peripheral arch 210 are such that it has a sufficiently high rigidity. to maintain the head 20 in a substantially planar shape when the support structure 21 is deployed, without an intermediate hoop 212. It is within the competence of those skilled in the art, on the basis of their general knowledge, to make such a choice of material and dimensions of the appropriate peripheral arch 210.

Description

Domaine de l'inventionField of the invention

L'invention s'inscrit dans le domaine des dispositifs d'abri contre les rayons du soleil et concerne plus particulièrement un parasol du type à tête repliable. L'invention concerne également un procédé de pliage de la tête d'un tel parasol.The invention relates to the field of devices for shelter against the sun's rays and relates more particularly to a parasol of the type with a folding head. The invention also relates to a method of folding the head of such a parasol.

État de l'artState of the art

Parmi les dispositifs d'abri contre les rayons du soleil existants, on connaît les parasols, c'est-à-dire les dispositifs pourvus d'un pied destiné à être fixé au sol, et portant une tête à distance du sol.Among the existing devices for shelter against the sun's rays, parasols are known, that is to say devices provided with a foot intended to be fixed to the ground, and bearing a head at a distance from the ground.

La tête est typiquement constituée d'une pluralité de baleines se déployant radialement autour d'un axe central, sur lesquelles est fixée une toile apte à filtrer au moins en partie les rayons du soleil lorsqu'elle est frappée par lesdits rayons. Les baleines sont généralement fixées de manière articulée, d'une part, au pied, et d'autre part, à un anneau coulissant, emmanché sur le pied, apte à occuper deux positions extrêmes. Selon une première position extrême de l'anneau, les baleines sont repliées sur le pied, de même que la toile, et selon une seconde position extrême les baleines sont déployées radialement autour du pied, exerçant des efforts sur la toile afin de la tendre et de lui donner la forme d'une calotte sphérique. Lorsque la toile est tendue, elle projette une surface ombragée sur le sol, formant ainsi un abri contre les rayons du soleil.The head typically consists of a plurality of ribs extending radially around a central axis, to which is fixed a fabric capable of at least partially filtering the sun's rays when it is struck by said rays. The ribs are generally fixed in an articulated manner, on the one hand, to the foot, and on the other hand, to a sliding ring, fitted on the foot, capable of occupying two extreme positions. According to a first extreme position of the ring, the ribs are folded over the foot, as is the canvas, and according to a second extreme position the ribs are deployed radially around the foot, exerting forces on the canvas in order to stretch it and to give it the shape of a spherical cap. When the canvas is stretched, it projects a shaded surface on the ground, thus forming a shelter from the rays of the sun.

Ces parasols ont notamment pour inconvénient de ne pas être utilisables lorsque le vent souffle à des vitesses relativement élevées, typiquement à quelques dizaines de kilomètres par heure, à cause de l'importante prise au vent de la toile. On entend par prise au vent, la surface sur laquelle des efforts de pression sont exercés par le vent. Ces efforts de pression génèrent des moments de force sur les baleines. Ces moments de force peuvent générer des contraintes mécaniques dans la tête de parasol, et causer des dommages à ladite tête du fait d'une faible résistance des baleines aux contraintes mécaniques. De plus, les efforts de pression exercés sur la toile du parasol peuvent, si le mât est mal fixé au sol ou si lesdits efforts sont suffisamment importants, générer un phénomène de portance déplaçant le parasol dans la direction du vent, posant alors d'évidents problèmes de sécurité.These parasols have the particular drawback of not being usable when the wind blows at relatively high speeds, typically at a few tens of kilometers per hour, because of the significant wind resistance of the canvas. By wind resistance is meant the surface on which pressure forces are exerted by the wind. These pressure forces generate moments of force on the whales. These moments of force can generate mechanical stresses in the parasol head, and cause damage to said head due to the low resistance of the ribs to mechanical stresses. In addition, the pressure forces exerted on the parasol's fabric can, if the mast is poorly fixed to the ground or if said forces are sufficiently large, generate a lift phenomenon displacing the pole. parasol in the direction of the wind, posing obvious safety problems.

Des parasols sont divulgués, par exemple, dans les documents WO 2005/084480 A1 , US 2011/099692 A1 , US 6 202 659 B1 , US 4 836 232 A ou FR 2 700 802 A1 .Parasols are disclosed, for example, in documents WO 2005/084480 A1 , US 2011/099692 A1 , US 6,202,659 B1 , US 4 836 232 A or FR 2 700 802 A1 .

Exposé de l'inventionDisclosure of the invention

Selon un premier aspect, la présente invention a pour objectif de proposer un parasol apte à être utilisé lorsque le vent souffle, sans présenter des problèmes de danger, ni se détériorer.According to a first aspect, the object of the present invention is to provide a parasol suitable for use when the wind is blowing, without presenting danger problems or deteriorating.

Un autre objectif de l'invention est de proposer un parasol apte à projeter une surface ombragée sur le sol, entièrement exploitable par un utilisateur.Another objective of the invention is to provide a parasol capable of projecting a shaded surface onto the ground, which can be fully exploited by a user.

Un objectif supplémentaire de la présente invention est de proposer un parasol dont l'utilisation est simple et rapide.An additional objective of the present invention is to provide a parasol which is quick and easy to use.

La présente invention concerne, selon un premier aspect, un parasol comprenant un pied comportant un mât, et une tête, solidaire d'une extrémité dudit mât, comportant une toile apte à filtrer au moins une partie des rayons du soleil et une structure de soutien de ladite toile. Ladite structure de soutien est déformable entre une première configuration dite déployée, dans laquelle la toile est tendue, et une seconde configuration dite repliée, dans laquelle la toile est repliée. La structure de soutien comporte un premier arceau refermé sur lui-même, dit « arceau périphérique », s'inscrivant dans un plan dans la configuration déployée de la structure de soutien, et la toile est fixée à l'intérieur de l'arceau périphérique de telle sorte que ladite toile est tendue à l'intérieur dudit arceau périphérique dans la configuration déployée de la structure de soutien. La structure de soutien comprend également un deuxième arceau, dit « arceau interne », refermé sur lui-même, l'arceau interne étant disposé à l'intérieur de l'arceau périphérique, contigu en un point de tangence intérieure, et sensiblement coplanaire avec ce dernier lorsque la structure de soutien occupe sa configuration déployée.The present invention relates, according to a first aspect, to a parasol comprising a foot comprising a mast, and a head, integral with one end of said mast, comprising a fabric capable of filtering at least part of the sun's rays and a support structure. of said canvas. Said support structure is deformable between a first so-called deployed configuration, in which the canvas is stretched, and a second so-called folded configuration, in which the canvas is folded. The support structure comprises a first arch closed on itself, called a “peripheral arch”, forming part of a plane in the deployed configuration of the support structure, and the canvas is fixed inside the peripheral arch. such that said canvas is stretched inside said peripheral arch in the deployed configuration of the support structure. The support structure also comprises a second arch, called an “internal arch”, closed on itself, the internal arch being arranged inside the peripheral arch, contiguous at a point of internal tangency, and substantially coplanar with it. the latter when the support structure occupies its deployed configuration.

Lorsque la structure de soutien occupe sa configuration déployée, le parasol est en position d'utilisation, c'est-à-dire que la toile est apte à projeter une surface ombragée sur le sol.When the support structure occupies its deployed configuration, the parasol is in the position of use, that is to say the fabric is able to project a shaded surface on the ground.

Dans cette configuration déployée, la tête de parasol présente avantageusement une forme géométrique sensiblement plane, apte à être placée sensiblement parallèlement à la direction du vent. La tête ainsi placée ne présente donc pas ou peu de prise au vent, les efforts de pression du vent sur ladite tête sont donc absents ou relativement faibles. Grâce à ces caractéristiques de la tête de parasol, le parasol peut être utilisé lorsque le vent souffle, sans présenter des problèmes de danger, ni se détériorer.In this deployed configuration, the parasol head advantageously has a substantially planar geometric shape, capable of being placed substantially parallel to the direction of the wind. The head thus placed therefore has little or no wind resistance, the wind pressure forces on said head are therefore absent or relatively low. Thanks to these characteristics of the parasol head, the parasol can be used when the wind is blowing, without presenting any danger problems or deteriorating.

En outre, l'arceau interne permet d'apporter une résistance mécanique à l'encontre des efforts exercés sur la structure de soutien, notamment générés par le vent suivant sa direction.In addition, the internal arch makes it possible to provide mechanical resistance against the forces exerted on the support structure, in particular generated by the wind following its direction.

Suivant des modes de réalisation particuliers, l'invention répond en outre aux caractéristiques suivantes, mises en œuvre séparément ou en chacune de leurs combinaisons techniquement opérantes.According to particular embodiments, the invention also meets the following characteristics, implemented separately or in each of their technically operative combinations.

Dans des modes de réalisation particuliers de l'invention, l'arceau périphérique est élastiquement déformable entre une position, dite « position libre », dans laquelle il est déployé de sorte à tendre la toile, et une position dite « position contrainte », dans laquelle il est replié sur lui-même dans une conformation sensiblement plane.In particular embodiments of the invention, the peripheral arch is elastically deformable between a position, called “free position”, in which it is deployed so as to stretch the canvas, and a position called “constrained position”, in which it is folded over on itself in a substantially planar conformation.

La position libre de l'arceau périphérique correspond à la configuration déployée de la structure de soutien, et la position contrainte dudit arceau périphérique correspond à la configuration repliée de la structure de soutien.The free position of the peripheral arch corresponds to the deployed configuration of the support structure, and the constrained position of said peripheral arch corresponds to the folded configuration of the support structure.

L'arceau périphérique étant élastiquement déformable, une fois déformé, il tend à reprendre la forme qu'il occupait avant déformation et génère des efforts à cet effet. Les contraintes mécaniques auxquelles l'arceau périphérique est soumis en position contrainte s'opposent à ces efforts de façon à les annuler et à maintenir ledit arceau en position contrainte. L'arceau périphérique est donc adapté à reprendre sa forme initiale spontanément lorsqu'il n'est plus soumis à des contraintes mécaniques, et donc se à déployer et à tendre la toile. Par conséquent, il est facile et ludique de mettre le parasol en position d'utilisation. De plus, le déploiement de la toile est réalisé plus rapidement que celui des parasols de l'état de l'art.The peripheral arch being elastically deformable, once deformed, it tends to resume the shape it occupied before deformation and generates forces for this purpose. The mechanical stresses to which the peripheral arch is subjected in the constrained position oppose these forces so as to cancel them and to maintain said arch in the constrained position. The peripheral arch is therefore adapted to resume its initial shape spontaneously when it is no longer subjected to mechanical stresses, and therefore to deploy and stretch the canvas. Therefore, it is easy and fun to put the parasol in the use position. In addition, the canvas is deployed faster than that of state-of-the-art parasols.

Le parasol est configuré de telle sorte que, lorsque l'arceau périphérique occupe sa position contrainte, ledit arceau périphérique est élastiquement déformé de sorte à replier la toile sur elle-même et à présenter une forme sensiblement plane. Le parasol occupe alors une position de rangement dans laquelle il est apte à être aisément transporté et stocké.The parasol is configured such that, when the peripheral hoop occupies its constrained position, said peripheral hoop is elastically deformed so as to fold the canvas back on itself and to have a substantially planar shape. The parasol then occupies a position of storage in which it is able to be easily transported and stored.

Avantageusement, la tête est rendue solidaire de ladite extrémité du mât par un système d'articulation comprenant un premier moyen d'articulation fixé sur la tête et un second moyen d'articulation fixé sur le mât, lesdits premier et second moyen d'articulation coopérant l'un avec l'autre.Advantageously, the head is made integral with said end of the mast by an articulation system comprising a first articulation means fixed on the head and a second articulation means fixed on the mast, said first and second articulation means cooperating with each other.

Ces premier et second moyens d'articulations sont adaptés à former une articulation grâce à laquelle la tête est apte à adopter différentes positions par rapport au mât.These first and second articulation means are adapted to form an articulation thanks to which the head is able to adopt different positions relative to the mast.

Dans des modes particuliers de réalisation de l'invention, le premier moyen d'articulation est disposé en périphérie de la tête.In particular embodiments of the invention, the first articulation means is arranged at the periphery of the head.

De par cette caractéristique, lorsque le parasol est en position d'utilisation, la toile est apte à projeter une surface ombragée sur le sol, entièrement exploitable par un utilisateur, dans la mesure où le mât est disposé à l'extérieur de ladite surface ombragée.By virtue of this characteristic, when the parasol is in the position of use, the canvas is able to project a shaded surface on the ground, entirely usable by a user, insofar as the mast is placed outside said shaded surface. .

Dans des modes particuliers de réalisation de l'invention, le premier moyen d'articulation est fixé à une entretoise, fixée à l'intérieur de l'arceau interne de sorte à s'étendre entre deux points diamétralement opposés de l'arceau interne.In particular embodiments of the invention, the first articulation means is fixed to a spacer, fixed inside the internal arch so as to extend between two diametrically opposed points of the internal arch.

De par ces caractéristiques, le parasol est simple de conception et de mise en œuvre. Ainsi, le coût du parasol est relativement faible, et les éventuelles opérations de maintenance sont facilités, telles que la rechange de pièces.Due to these characteristics, the parasol is easy to design and install. Thus, the cost of the parasol is relatively low, and any maintenance operations are facilitated, such as the replacement of parts.

Dans des modes particuliers de réalisation de l'invention, le premier moyen d'articulation et le second moyen d'articulation sont configurés de sorte à permettre que la tête soit mobile par rapport au pied selon au moins un degré de liberté en rotation.In particular embodiments of the invention, the first articulation means and the second articulation means are configured so as to allow the head to be movable relative to the foot according to at least one degree of freedom in rotation.

Les moyens d'articulation sont préférentiellement configurés de sorte que la tête soit mobile en rotation par rapport au mât selon une liaison mécanique de type rotule, afin de pouvoir modifier l'orientation de la tête par rapport au mât selon trois axes de rotation.The articulation means are preferably configured so that the head is movable in rotation relative to the mast according to a mechanical connection of the ball joint type, in order to be able to modify the orientation of the head relative to the mast according to three axes of rotation.

Ainsi, la tête peut facilement être disposée sensiblement parallèle par rapport à la direction du vent de sorte qu'elle ne présente pas ou peu de prise au vent.Thus, the head can easily be arranged substantially parallel with respect to the direction of the wind so that it has little or no wind resistance.

La tête peut avantageusement être solidaire du pied de manière amovible, de sorte à pouvoir être désolidarisée du pied.The head can advantageously be attached to the foot in a removable manner, so as to be able to be detached from the foot.

Dans des modes particuliers de réalisation de l'invention, la structure de soutien comporte un troisième arceau refermé sur lui-même, dit « arceau intermédiaire », disposé entre les arceaux périphérique et interne, fixé en un point de tangence intérieure de l'arceaux périphérique, et fixé à la toile sur au moins une portion de sa périphérie.In particular embodiments of the invention, the support structure comprises a third arch closed on itself, called an “intermediate arch”, arranged between the peripheral and internal arches, fixed at a point of internal tangency of the arches. peripheral, and fixed to the canvas on at least a portion of its periphery.

Avantageusement, l'arceau intermédiaire est élastiquement déformable entre une position, dite « position libre », dans laquelle il est déployé, et une position dite « position contrainte », dans laquelle il est replié sur lui-même dans une conformation sensiblement plane. La position libre de l'arceau intermédiaire correspond à la configuration déployée de la structure de soutien, et la position contrainte dudit arceau intermédiaire correspond à la configuration repliée de la structure de soutien. L'arceau intermédiaire est sensiblement coplanaire avec l'arceau périphérique.Advantageously, the intermediate arch is elastically deformable between a position, called “free position”, in which it is deployed, and a position called “constrained position”, in which it is folded back on itself in a substantially planar configuration. The free position of the intermediate arch corresponds to the deployed configuration of the support structure, and the constrained position of said intermediate arch corresponds to the folded configuration of the support structure. The intermediate arch is substantially coplanar with the peripheral arch.

L'arceau intermédiaire permet d'apporter une résistance supplémentaire à l'encontre des efforts exercés par le poids de la tête sur la structure de soutien, plus ou moins élevés suivant ses dimensions, et, le cas échéant, par le vent sur la structure de soutien.The intermediate arch makes it possible to provide additional resistance against the forces exerted by the weight of the head on the support structure, more or less high according to its dimensions, and, if necessary, by the wind on the structure Support.

Dans des modes particuliers de réalisation de l'invention, lequel le mât est de longueur ajustable.In particular embodiments of the invention, which the mast is of adjustable length.

Ainsi, lorsque le parasol occupe sa position de rangement, la longueur du mât peut être minimale, et la tête repliée contre le mât, de sorte à diminuer l'encombrement du parasol. Le parasol peut donc être transporté et stocké aisément.Thus, when the parasol occupies its storage position, the length of the mast can be minimal, and the head folded against the mast, so as to reduce the size of the parasol. The parasol can therefore be transported and stored easily.

Dans des modes particuliers de réalisation de l'invention, le mât comprend un moyen de fixation dans le sol.In particular embodiments of the invention, the mast comprises a means for fixing in the ground.

La présente invention concerne, selon un second aspect, un procédé de pliage de la tête d'un parasol comprenant :

  • une première étape consistant à rabattre l'un contre l'autre deux points opposés de l'arceau périphérique, tout en appliquant un effort de torsion sur ledit arceau périphérique, de manière à faire pivoter une partie de la tête, sensiblement sur cent quatre-vingt degrés par rapport à une autre partie de ladite tête,
  • une deuxième étape consistant à rabattre les deux parties de la tête l'une contre l'autre, de sorte à former un agencement intermédiaire dans lequel l'arceau périphérique forme deux anneaux superposés l'un contre l'autre,
  • une troisième étape consistant à réitérer les première et deuxième étapes sur l'agencement intermédiaire ainsi formé, de sorte à contraindre la structure de soutien dans sa configuration repliée,
  • une quatrième étape consistant à immobiliser la structure de soutien dans ladite configuration repliée par un moyen d'attache.
The present invention relates, according to a second aspect, to a method of folding the head of a parasol comprising:
  • a first step consisting in folding two opposite points of the peripheral arch against one another, while applying a torsional force on said peripheral arch, so as to cause part of the head to pivot, substantially over one hundred and four- twenty degrees from another part of said head,
  • a second step consisting in folding the two parts of the head against each other, so as to form an intermediate arrangement in which the peripheral hoop forms two rings superimposed one against the other,
  • a third step consisting in repeating the first and second steps on the intermediate arrangement thus formed, so as to constrain the support structure in its folded configuration,
  • a fourth step consisting in immobilizing the support structure in said folded configuration by means of attachment.

Préférentiellement, quand la structure de soutien comprend un arceau intermédiaire et que l'arceau périphérique est manipulé lors de la mise en œuvre du procédé de pliage de la tête de parasol, cette manipulation provoque des déformations de l'arceau intermédiaire sensiblement analogues à celles subies par l'arceau périphérique.Preferably, when the support structure comprises an intermediate arch and the peripheral arch is manipulated during the implementation of the method of folding the parasol head, this manipulation causes deformations of the intermediate arch which are substantially similar to those undergone. by the peripheral arch.

La présente invention concerne également un procédé de dépliage de la tête comprenant une étape de libération de la structure de soutien dans laquelle l'utilisateur agit sur le moyen d'attache afin de rendre la mobilité à la structure de soutien de sorte qu'elle retrouve spontanément sa configuration déployée.The present invention also relates to a method of unfolding the head comprising a step of releasing the support structure in which the user acts on the attachment means in order to restore mobility to the support structure so that it regains spontaneously its deployed configuration.

Présentation des figuresPresentation of figures

L'invention sera mieux comprise à la lecture de la description suivante, donnée à titre d'exemple nullement limitatif, et faite en se référant aux figures qui représentent :

  • figure 1 : une vue en perspective d'un parasol selon l'invention, dont une structure de soutien est dans une configuration déployée,
  • figure 2 : une vue en perspective du parasol selon la figure 1, dont la structure de soutien est dans une configuration repliée,
  • figure 3 : une vue en perspective du parasol selon la figure 1 en position de rangement,
  • figure 4 : une vue en perspective d'une entretoise fixée de manière articulée au pied du parasol selon la figure 1, et une vue de détail d'un système d'articulation de la tête de parasol au pied de parasol fixé à ladite entretoise,
  • figures 5 à 8 : des étapes successives de pliage de la tête du parasol selon la figure 1.
The invention will be better understood on reading the following description, given by way of non-limiting example, and made with reference to the figures which represent:
  • figure 1 : a perspective view of a parasol according to the invention, a support structure of which is in a deployed configuration,
  • figure 2 : a perspective view of the parasol according to the figure 1 , whose support structure is in a folded configuration,
  • figure 3 : a perspective view of the parasol according to the figure 1 in storage position,
  • figure 4 : a perspective view of a spacer fixed in an articulated manner to the foot of the parasol according to the figure 1 , and a detail view a system of articulation of the parasol head to the parasol base fixed to said spacer,
  • figures 5 to 8 : successive stages of folding the head of the parasol according to the figure 1 .

Description détaillée de l'inventionDetailed description of the invention

La présente invention concerne un parasol 10, tel que représenté par les figures 1 à 3 dans un exemple de réalisation non limitatif, comprenant une tête 20 de parasol 10, dite « tête » dans la suite du texte, solidaire d'un pied 30 de parasol 10, dit « pied » dans la suite du texte. Plus précisément, le pied 30 comporte un mât 32 s'étendant entre deux extrémités opposées, la tête 20 étant solidaire d'une de ces extrémités.The present invention relates to a parasol 10, as represented by the figures 1 to 3 in a non-limiting exemplary embodiment, comprising a head 20 of parasol 10, referred to as “head” in the remainder of the text, secured to a foot 30 of parasol 10, referred to as “foot” in the remainder of the text. More precisely, the foot 30 comprises a mast 32 extending between two opposite ends, the head 20 being integral with one of these ends.

La tête 20 est formée par une structure de soutien 21 comprenant au moins un premier arceau périphérique 210 refermé sur lui même, élastiquement déformable. Par « arceau périphérique refermé sur lui-même », on entend que l'arceau périphérique 210 présente une forme géométrique dont le contour est fermé, tel que représenté par la figure 1, de sorte à définir une aire intérieure.The head 20 is formed by a support structure 21 comprising at least a first peripheral arch 210 closed on itself, elastically deformable. The term “peripheral arch closed on itself” is understood to mean that the peripheral arch 210 has a geometric shape, the contour of which is closed, as represented by the figure. figure 1 , so as to define an interior area.

L'arceau périphérique 210 est apte à être déformé élastiquement, d'une position dite « position libre », à une position dite « position contrainte », lorsqu'il est soumis à des efforts d'intensité suffisante, c'est-à-dire supérieure à une valeur donnée. Lorsque les efforts ne sont plus appliqués sur ledit arceau périphérique 210, ou lorsque leur intensité est insuffisante, c'est-à-dire inférieure à une valeur donnée, l'arceau périphérique 210 est avantageusement apte à reprendre spontanément sa position libre. La position libre est la position qu'occupe l'arceau périphérique 210 avant déformation, c'est-à-dire, une position dans laquelle il est déployé. Lorsqu'il occupe sa position déployée, l'arceau périphérique est inscrit dans un plan.The peripheral arch 210 is able to be elastically deformed, from a position called “free position”, to a position called “constrained position”, when it is subjected to forces of sufficient intensity, that is to say. say greater than a given value. When the forces are no longer applied to said peripheral hoop 210, or when their intensity is insufficient, that is to say less than a given value, the peripheral hoop 210 is advantageously able to spontaneously resume its free position. The free position is the position occupied by the peripheral arch 210 before deformation, that is to say, a position in which it is deployed. When it occupies its deployed position, the peripheral arch is inscribed in a plane.

Une toile 22 apte à filtrer au moins une partie des rayons du soleil est fixée à l'intérieur de l'arceau périphérique 210.A fabric 22 capable of filtering at least part of the sun's rays is fixed inside the peripheral arch 210.

Dans une première configuration de la structure de soutien 21, dite « configuration déployée », tel qu'illustré par la figure 1, l'arceau périphérique 210 occupe sa position libre, et la toile 22 est tendue. Lorsque la toile 22 est tendue par l'arceau périphérique 210, ledit arceau périphérique 210 exerce préférentiellement des efforts de tension sur l'ensemble de la périphérie de la toile 22.In a first configuration of the support structure 21, called the “deployed configuration”, as illustrated by figure 1 , the peripheral arch 210 occupies its free position, and the canvas 22 is stretched. When canvas 22 is tensioned by the peripheral arch 210, said peripheral arch 210 preferentially exerts tension forces over the entire periphery of the fabric 22.

A titre d'exemple, l'arceau périphérique 210 est engagé dans un ou des logements se développant le long de la périphérie de la toile 22. Alternativement, l'arceau périphérique 210 peut être fixé à la toile 22 par tout moyen de fixation connu de l'homme du métier, permanent ou amovible.By way of example, the peripheral hoop 210 is engaged in one or more housings developing along the periphery of the canvas 22. Alternatively, the peripheral hoop 210 can be fixed to the canvas 22 by any known fixing means. of the person skilled in the art, permanent or removable.

La toile 22 comprend une face 221 dite « face supérieure », qui est destinée à recevoir les rayons du soleil lorsque le parasol 10 est en position d'utilisation, et une face 222 dite « face inférieure », qui est destinée à demeurer en regard du sol lorsque le parasol 10 est en position d'utilisation.The canvas 22 comprises a face 221 called “upper face”, which is intended to receive the sun's rays when the parasol 10 is in the position of use, and a face 222 called “lower face”, which is intended to remain opposite. from the ground when the parasol 10 is in the use position.

La structure de soutien 21 comprend également un deuxième arceau, dit « arceau interne » 211, refermé sur lui-même de sorte à définir une aire intérieure, et fixé à la toile 22, par exemple, contre une face 221 ou 222 de la toile 22. Comme représenté par la figure 1, lorsque la structure de soutien 21 occupe sa configuration déployée, l'arceau interne 211 est disposé à l'intérieur de l'arceau périphérique 210, contigu en un point de tangence intérieure 23, et est sensiblement coplanaire avec ce dernier.The support structure 21 also comprises a second arch, called an “internal arch” 211, closed on itself so as to define an interior area, and fixed to the canvas 22, for example, against a face 221 or 222 of the canvas. 22. As represented by figure 1 , when the support structure 21 occupies its deployed configuration, the internal arch 211 is disposed inside the peripheral arch 210, contiguous at an internal point of tangency 23, and is substantially coplanar with the latter.

L'arceau interne 211 est préférentiellement de forme circulaire. L'arceau interne 211 peut être réalisé en tout matériau élastiquement déformable.The internal arch 211 is preferably of circular shape. The internal arch 211 can be made of any elastically deformable material.

La structure de soutien 21 peut comprendre un troisième arceau dit « arceau intermédiaire » 212 disposé entre les arceaux périphérique 210 et interne 211. De manière analogue aux arceaux périphérique 210 et interne 211, l'arceau intermédiaire 212 est refermé sur lui-même, de sorte à former une aire intérieure, et fixé à la toile 22, par exemple, contre une de ses faces 221 ou 222.The support structure 21 may include a third hoop called an “intermediate hoop” 212 disposed between the peripheral 210 and internal 211 hoops. In a similar way to the peripheral 210 and internal 211 hoops, the intermediate hoop 212 is closed on itself, so so as to form an interior area, and fixed to the canvas 22, for example, against one of its faces 221 or 222.

L'arceau intermédiaire permet d'apporter une résistance supplémentaire à l'encontre des efforts exercés par le poids de la tête sur la structure de soutien, plus ou moins élevés suivant ses dimensions, et, le cas échéant, par le vent sur la structure de soutien.The intermediate arch makes it possible to provide additional resistance against the forces exerted by the weight of the head on the support structure, more or less high according to its dimensions, and, if necessary, by the wind on the structure Support.

Avantageusement, de manière analogue à l'arceau périphérique 210, l'arceau intermédiaire 212 est élastiquement déformable entre une position, dite « position libre », dans laquelle il est déployé de sorte à tendre une portion de la toile, et une position dite « position contrainte », dans laquelle il est replié sur lui-même dans une conformation sensiblement plane.Advantageously, analogously to the peripheral hoop 210, the intermediate hoop 212 is elastically deformable between a position, called "free position", in which it is deployed so as to stretch a portion of the canvas, and a position called "constrained position", in which it is folded back on itself in a substantially flat conformation.

L'arceau intermédiaire 212 peut être réalisé dans tout matériau élastiquement déformable.The intermediate arch 212 can be made from any elastically deformable material.

A titre d'exemple non limitatif, la surface de l'aire intérieure délimitée par l'arceau intermédiaire 212 est deux fois grande que la surface de l'aire intérieure délimitée par l'arceau interne 211.By way of nonlimiting example, the area of the interior area delimited by the intermediate arch 212 is twice as large as the area of the interior area delimited by the internal arch 211.

Préférentiellement, les arceaux 210, 211 et 212 sont disposés les uns par rapports aux autres de manière contigus en un point de tangence intérieure 23. Le point de tangence 23 est dit « point de tangence intérieure » dans la mesure où les arceaux intermédiaire 212 et intérieur 211 sont respectivement disposés à l'intérieur de l'arceau périphérique 210.Preferably, the hoops 210, 211 and 212 are disposed with respect to each other contiguously at a point of internal tangency 23. The point of tangency 23 is called “point of internal tangency” insofar as the intermediate hoops 212 and interior 211 are respectively arranged inside the peripheral arch 210.

L'arceau périphérique 210 est l'arceau le plus soumis aux contraintes mécaniques, tels que les efforts générés par le poids de la tête et/ou les efforts générés par le vent. Il est donc dimensionné pour présenter une résistance mécanique supérieure aux arceaux intermédiaire 212 et intérieure 211. La section droite de l'arceau périphérique 210 présente donc des dimensions plus importantes que la section droite de l'arceau intermédiaire 212. De la même manière, l'arceau intermédiaire 212 peut être dimensionné pour présenter une résistance mécanique supérieure à l'arceau intérieur 211, sa section droite peut donc présenter des dimensions supérieures aux dimensions de la section droite de l'arceau interne 211.The peripheral hoop 210 is the hoop most subject to mechanical stresses, such as the forces generated by the weight of the head and / or the forces generated by the wind. It is therefore dimensioned to have greater mechanical strength than the intermediate 212 and inner 211 hoops. The cross section of the peripheral hoop 210 therefore has larger dimensions than the cross section of the intermediate hoop 212. Likewise, the cross section of the peripheral hoop 210 The intermediate arch 212 can be dimensioned to have a greater mechanical strength than the internal arch 211, its cross section may therefore have dimensions greater than the dimensions of the cross section of the internal arch 211.

Dans l'exemple de réalisation non limitatif illustré par les figures 1 et 5, les arceaux périphérique 210 et intermédiaire 212 sont sensiblement de forme géométrique ovoïdale. Plus précisément, lesdits arceaux périphérique 210 et intermédiaire 212 se développent respectivement selon deux portions transversales jointes entre elles par deux portions longitudinales symétriques par rapport à un axe de symétrie S. Les deux portions transversales présentent chacune la forme géométrique d'un arc de cercle, les rayons desdits arcs étant de valeurs différentes l'un de l'autre.In the non-limiting example of embodiment illustrated by the figures 1 and 5 , the peripheral 210 and intermediate 212 arches are substantially of ovoidal geometric shape. More precisely, said peripheral 210 and intermediate 212 arches develop respectively in two transverse portions joined together by two longitudinal portions symmetrical with respect to an axis of symmetry S. The two transverse portions each have the geometric shape of a circular arc, the radii of said arcs being of different values from one another.

Préférentiellement, les arceaux périphérique 210 et intermédiaire 212 sont fixés l'un à l'autre, au point de tangence intérieure 23, par une de leurs portions transversales. Plus particulièrement, comme illustré par la figure 1, lesdits arceaux périphérique 210 et intermédiaire 212 sont fixés au point de tangence intérieure 23 par leur portion transversale respective dont la valeur du rayon est la plus faible.Preferably, the peripheral 210 and intermediate 212 hoops are fixed to one another, at the internal point of tangency 23, by one of their transverse portions. More particularly, as illustrated by figure 1 , said peripheral 210 and intermediate 212 hoops are fixed to the internal point of tangency 23 by their respective transverse portion, the radius value of which is the smallest.

La tête 20 est rendue solidaire du mât 32 par un système d'articulation 24. Avantageusement, le système d'articulation 24 peut être fixé en périphérie de l'arceau périphérique 210.The head 20 is made integral with the mast 32 by an articulation system 24. Advantageously, the articulation system 24 can be fixed at the periphery of the peripheral arch 210.

Le système d'articulation 24 comprend un premier moyen d'articulation 243 fixé sur la tête 20 et un second moyen d'articulation 31 fixé sur le mât 32.The articulation system 24 comprises a first articulation means 243 fixed on the head 20 and a second articulation means 31 fixed on the mast 32.

Le premier moyen d'articulation 243 est fixé à une entretoise 240 fixée à l'intérieur de l'arceau interne 211 de sorte à relier deux points de l'arceau interne 211 diamétralement opposés.The first articulation means 243 is fixed to a spacer 240 fixed inside the internal hoop 211 so as to connect two points of the diametrically opposed internal hoop 211.

L'entretoise 240 s'étend selon un axe longitudinal, et comprend deux extrémités opposées comprenant chacune respectivement une face d'extrémité. Chaque face d'extrémité comprend avantageusement une encoche 241, 242, destinée à recevoir une portion de l'arceau interne 211.The spacer 240 extends along a longitudinal axis, and comprises two opposite ends each respectively comprising an end face. Each end face advantageously comprises a notch 241, 242, intended to receive a portion of the internal arch 211.

Dans l'exemple de réalisation illustré par les figures 1 et 5, l'entretoise 240 est attenante au point de tangence intérieure 23 des arceaux interne 211, intermédiaire 212 et périphérique 210, par une de ses extrémités dite « extrémité proximale », son autre extrémité, dite « extrémité distale » étant distante dudit point de tangence intérieure 23, si bien que le mât 32 est excentré par rapport à la tête 20.In the exemplary embodiment illustrated by the figures 1 and 5 , the spacer 240 adjoins the internal tangent point 23 of the internal 211, intermediate 212 and peripheral 210 arches, via one of its ends called the “proximal end”, its other end, called the “distal end” being distant from said point of tangency interior 23, so that the mast 32 is eccentric with respect to the head 20.

De manière alternative, l'entretoise 240 peut ne pas être attenante au point de tangence intérieure 23.Alternatively, the spacer 240 may not be contiguous to the internal point of tangency 23.

Dans l'exemple de réalisation illustré par la vue de détail de la figure 4, l'encoche 242 pratiquée sur la face de l'extrémité proximale de l'entretoise 240 comprend plusieurs empreintes de sorte à recevoir successivement, juxtaposés les uns aux autres, l'arceau interne 211, l'arceau intermédiaire 212 et l'arceau périphérique 210. Les empreintes sont dimensionnées de façon à correspondre aux dimensions des sections droites des arceaux périphérique 210, intermédiaire 212 et interne 211.In the exemplary embodiment illustrated by the detail view of the figure 4 , the notch 242 made on the face of the proximal end of the spacer 240 comprises several indentations so as to receive successively, juxtaposed to each other, the internal arch 211, the intermediate arch 212 and the peripheral arch 210. The indentations are dimensioned so as to correspond to the dimensions of the straight sections of the peripheral 210, intermediate 212 and internal 211 arches.

L'encoche 241 pratiquée sur la face de l'extrémité distale ne comprend, de préférence, qu'une seule empreinte dans la mesure où elle est destinée à recevoir uniquement l'arceau interne 211.The notch 241 made on the face of the distal end preferably comprises only a single indentation insofar as it is intended to receive only the internal arch 211.

Alternativement, dans d'autres exemples de réalisation non représentés sur les figures, les encoches 241, 242, des faces d'extrémité peuvent ne comprendre qu'une seule empreinte chacune.Alternatively, in other exemplary embodiments not shown in the figures, the notches 241, 242, of the end faces may comprise only one indentation each.

Avantageusement, l'entretoise 240 et l'arceau interne 211 sont liés mécaniquement par un ajustement de type serré, réalisé, par exemple, par une légère déformation de l'arceau interne 211, générant une tension de maintien de l'entretoise 240. Alternativement, l'entretoise 240 peut être liée mécaniquement à l'arceau interne 211 par tout autre moyen de fixation connu en soi.Advantageously, the spacer 240 and the internal arch 211 are mechanically linked by an adjustment of the tight type, produced, for example, by a slight deformation of the internal arch 211, generating a tension for maintaining the spacer 240. Alternatively, , the spacer 240 can be mechanically linked to the internal arch 211 by any other fixing means known per se.

Préférentiellement, le second moyen d'articulation 31 est situé à une des extrémités du mât 32, dite « extrémité supérieure ».Preferably, the second articulation means 31 is located at one of the ends of the mast 32, called the “upper end”.

Tel que représenté par la figure 4 à titre d'exemple non limitatif, le premier moyen d'articulation 243 peut comprendre une sphère 244.As represented by the figure 4 by way of non-limiting example, the first articulation means 243 can comprise a sphere 244.

Préférentiellement, la sphère 244 est maintenue à distance de l'entretoise 240 par l'intermédiaire d'un arbre 245 dont l'axe longitudinal s'étend, par exemple, perpendiculairement à l'axe longitudinal de l'entretoise 240, tel que représenté par la vue de détail de la figure 4.Preferably, the sphere 244 is kept at a distance from the spacer 240 by means of a shaft 245 whose longitudinal axis extends, for example, perpendicularly to the longitudinal axis of the spacer 240, as shown. by the detail view of the figure 4 .

Préférentiellement, l'arbre 245 est agencé au voisinage de l'extrémité proximale de l'entretoise 240. L'entretoise 240, l'arbre 245 et la sphère 244 peuvent être obtenus d'un seul tenant, par moulage.Preferably, the shaft 245 is arranged in the vicinity of the proximal end of the spacer 240. The spacer 240, the shaft 245 and the sphere 244 can be obtained in one piece, by molding.

Toutefois, alternativement, l'arbre 245 peut être fixé à l'entretoise 240 par un assemblage du type vis/écrou ou par tout moyen d'assemblage connu, et la sphère 244 peut être fixée à l'arbre 245 de manière permanente, par exemple, par collage.However, alternatively, the shaft 245 may be attached to the spacer 240 by a screw / nut type assembly or by any known assembly means, and the sphere 244 may be permanently attached to the shaft 245, for example. example, by collage.

Le second moyen d'articulation 31 est destiné à coopérer avec le premier moyen d'articulation 243, de sorte que la tête 20 soit apte à être mobile par rapport au pied 30 selon au moins un degré de liberté en rotation.The second articulation means 31 is intended to cooperate with the first articulation means 243, so that the head 20 is able to be movable relative to the foot 30 according to at least one degree of freedom in rotation.

Dans d'autres exemples de réalisation non représentés par les figures, les premier et second moyens d'articulation 243, 31 peuvent former entre eux une liaison mécanique de type pivot ou une liaison mécanique comportant deux degrés de liberté en rotation.In other embodiments not shown in the figures, the first and second articulation means 243, 31 can form between them a mechanical link of the pivot type or a mechanical link comprising two degrees of freedom in rotation.

Préférentiellement, le système d'articulation 24 permet l'articulation de la tête 20 par rapport au pied 30 selon une liaison mécanique de type rotule.Preferably, the articulation system 24 allows the articulation of the head 20 relative to the foot 30 according to a mechanical connection of the ball joint type.

Préférentiellement, le second moyen d'articulation 31 comprend un logement de forme complémentaire à la sphère 244, de sorte que ladite sphère 244 soit apte à pivoter dans le logement selon au moins un axe de rotation.Preferably, the second articulation means 31 comprises a housing of complementary shape to the sphere 244, so that said sphere 244 is able to pivot in the housing along at least one axis of rotation.

Le second moyen d'articulation 31 comprend également des moyens de blocage en rotation de ladite sphère 244. Par exemple, le logement est doté d'un organe de serrage apte à déformer ledit logement, dans les limites de sa limite élastique, de sorte à appliquer une force de serrage sur la sphère 244 suffisante pour bloquer ladite sphère 244 en rotation.The second articulation means 31 also comprises means for locking said sphere 244 in rotation. For example, the housing is provided with a clamping member capable of deforming said housing, within the limits of its elastic limit, so as to applying a clamping force on the sphere 244 sufficient to block said sphere 244 in rotation.

Dans un exemple non limitatif de réalisation, la tête est solidaire du pied de manière amovible, de sorte qu'elle puisse être désolidarisée du mât. Ainsi, un utilisateur peut notamment utiliser des têtes de dimensions différentes avec un unique pied.In a non-limiting example of an embodiment, the head is attached to the foot in a removable manner, so that it can be detached from the mast. Thus, a user can in particular use heads of different dimensions with a single foot.

Comme représenté en figures 1 et 4, le mât 32 est doté, à son autre extrémité, dite « extrémité inférieure », d'un moyen de fixation 33 dans le sol.As shown in figures 1 and 4 , the mast 32 is provided, at its other end, called the “lower end”, with a means 33 for fixing in the ground.

Avantageusement, le moyen de fixation 33 dans le sol consiste en un filetage sur une portion de la longueur du mât 32, dont la section droite est décroissante vers l'extrémité inférieure du mât 32. Ainsi, le parasol 10 peut être vissé dans les sols meubles ou dans tout logement adéquat de sorte à réaliser un assemblage vis/écrou.Advantageously, the fixing means 33 in the ground consists of a thread on a portion of the length of the mast 32, the cross section of which decreases towards the lower end of the mast 32. Thus, the parasol 10 can be screwed into the ground. furniture or in any suitable housing so as to achieve a screw / nut assembly.

Alternativement, le moyen de fixation 33 peut être formé par tout arrangement ou dispositif connu de l'homme du métier, tel que la conformation de l'extrémité inférieure en forme de pointe.Alternatively, the fixing means 33 can be formed by any arrangement or device known to those skilled in the art, such as the conformation of the lower end in the form of a point.

De manière avantageuse, la longueur du mât 32 peut être ajustable entre deux longueurs extrêmes minimale et maximale, respectivement représentées par les figures 1 et 4.Advantageously, the length of the mast 32 can be adjustable between two extreme minimum and maximum lengths, respectively represented by the figures 1 and 4 .

A cet effet, le mât 32 peut être télescopique, de sorte qu'il peut être divisé en au moins deux portions coaxiales emboitées l'une dans l'autre et aptes à coulisser l'une par rapport à l'autre.For this purpose, the mast 32 can be telescopic, so that it can be divided into at least two coaxial portions nested one inside the other and able to slide with respect to one another.

Le mât 32 comprend alors des moyens d'arrêt en translation des portions entre elles. Par exemple, une des portions est dotée d'un organe de serrage apte à déformer ladite portion de manière à appliquer une force de serrage sur l'autre portion suffisante pour bloquer les portions en translation.The mast 32 then comprises means for stopping the portions in translation from one another. For example, one of the portions is provided with a clamping member capable of deforming said portion so as to apply a clamping force on the other portion sufficient to block the portions in translation.

Dans l'exemple de réalisation non limitatif représenté par les figures 1 à 4, le mât 32 est divisé en quatre portions, dont trois sont dotées d'organes de serrage.In the non-limiting example of embodiment represented by the figures 1 to 4 , the mast 32 is divided into four portions, three of which are provided with clamping members.

Alternativement, dans d'autres exemples de réalisation non représentés sur les figures, les portions du mât 32 peuvent être fixées de manière articulée les unes aux autres, de sorte à pouvoir occuper respectivement une position pliée selon laquelle elles sont attenantes les unes aux autres, sur l'ensemble de leur longueur, et une position dépliée selon laquelle elles sont coaxiales et attenantes les unes aux autres par chacune de leurs extrémités.Alternatively, in other exemplary embodiments not shown in the figures, the portions of the mast 32 can be fixed in an articulated manner to each other, so as to be able to respectively occupy a folded position in which they are contiguous to each other, over their entire length, and an unfolded position in which they are coaxial and adjoining each other at each of their ends.

Le parasol 10 peut avantageusement occuper une position d'utilisation, dans laquelle la structure de soutien 21 occupe sa configuration déployée, comme représenté en figure 1, la toile 22 étant déployée.The parasol 10 can advantageously occupy a position of use, in which the support structure 21 occupies its deployed configuration, as shown in figure 1 , the canvas 22 being deployed.

Dans cette position, la toile 22 est déployée et est destinée à projeter une surface ombragée sur le sol, lorsqu'elle est frappée par des rayons du soleil, afin de fournir un abri à un utilisateur contre lesdits rayons.In this position, the canvas 22 is deployed and is intended to project a shaded surface on the ground, when struck by rays of the sun, in order to provide shelter to a user against said rays.

La figure 3 représente le parasol 10 en position de rangement, la structure de soutien 21 occupant une seconde configuration, dite « configuration repliée » et le mât 32 étant ajusté de sorte que sa longueur soit minimale. Dans cette configuration repliée de la structure de soutien 21, l'arceau périphérique 210 et l'arceau intermédiaire 212 sont élastiquement déformés, en position contrainte, de sorte à replier la toile 22 sur elle-même, comme décrit plus précisément dans la suite du texte.The figure 3 shows the parasol 10 in the storage position, the support structure 21 occupying a second configuration, called “folded configuration” and the mast 32 being adjusted so that its length is minimal. In this folded configuration of the support structure 21, the peripheral hoop 210 and the intermediate hoop 212 are elastically deformed, in the constrained position, so as to fold the canvas 22 back on itself, as described more precisely in the following section. text.

Dans cette position, le parasol 10 est destiné à être transporté ou stocké.In this position, the parasol 10 is intended to be transported or stored.

Afin de modifier la position du parasol 10, d'une position d'utilisation à une position de rangement, l'utilisateur doit réaliser des étapes afin de conformer la structure de soutien 21 en configuration repliée. Les figures 5 à 8 représentent respectivement un exemple de réalisation des étapes successives d'un procédé de pliage de la tête 20 selon l'invention.In order to modify the position of the parasol 10, from a position of use to a storage position, the user must carry out steps in order to conform the support structure 21 in the folded configuration. The figures 5 to 8 respectively represent an embodiment of the successive steps of a method for folding the head 20 according to the invention.

La figure 5 montre une première étape qui consiste à rabattre l'un contre l'autre un point de chaque portion longitudinale de l'arceau périphérique 210. Les points sont préférentiellement choisis de sorte que leur projection orthogonale par rapport à l'axe de symétrie S passe par l'aire intérieure définie par l'arceau intermédiaire 212, et sont préférentiellement sensiblement symétriques l'un par rapport à l'autre selon l'axe de symétrie S.The figure 5 shows a first step which consists in folding a point of each longitudinal portion of the peripheral arch 210 against one another. The points are preferably chosen so that their projection orthogonal with respect to the axis of symmetry S passes through the interior area defined by the intermediate arch 212, and are preferably substantially symmetrical with respect to one another along the axis of symmetry S.

Dans le même temps, un effort de torsion est appliqué sur l'arceau périphérique 210 de sorte que des portions respectives des faces supérieure 221 et inférieure 222 de la toile 22 soient simultanément apparentes dans un même plan. Une partie de la tête 20 est ainsi faite pivotée, sensiblement sur cent quatre-vingt degrés par rapport à une autre partie de ladite tête (20). Ces deux parties, correspondent respectivement avec chacune des faces supérieure 221 et inférieure 222 de la toile 22. La tête prend alors sensiblement la forme d'une lemniscate.At the same time, a torsional force is applied to the peripheral arch 210 so that respective portions of the upper 221 and lower 222 faces of the fabric 22 are simultaneously visible in the same plane. Part of the head 20 is thus pivoted, substantially over one hundred and eighty degrees relative to another part of said head (20). These two parts correspond respectively to each of the upper 221 and lower 222 faces of the canvas 22. The head then takes substantially the form of a lemniscate.

Il y a lieu de noter que la manipulation de l'arceau périphérique par l'utilisateur, lors de la mise en œuvre du procédé de pliage, provoque des déformations de l'arceau intermédiaire sensiblement analogues à celles subies par l'arceau périphérique.It should be noted that the manipulation of the peripheral hoop by the user, during the implementation of the folding method, causes deformations of the intermediate hoop substantially similar to those undergone by the peripheral hoop.

Lors d'une deuxième étape, les deux parties de la tête 20 sont ensuite rabattues l'une contre l'autre, de manière à ce que les portions des faces supérieure 221 et inférieure 222 soient disposées en regard l'une de l'autre, tel que représenté par la figure 6. Un agencement intermédiaire est ainsi formé, dans lequel l'arceau périphérique 210, tel qu'il est déformé suite à ces étapes, forme deux anneaux superposés l'un contre l'autre, de même que l'arceau intermédiaire 212.During a second step, the two parts of the head 20 are then folded against one another, so that the portions of the upper 221 and lower 222 faces are arranged facing each other. , as represented by the figure 6 . An intermediate arrangement is thus formed, in which the peripheral hoop 210, as it is deformed following these steps, forms two rings superimposed one against the other, as does the intermediate hoop 212.

Préférentiellement, mais non limitativement, les arceaux 210, 211 et 212 sont manipulés de sorte que l'arceau intermédiaire 212 soit sensiblement concentrique avec l'arceau interne 211 et que leur diamètre soit sensiblement identique.Preferably, but without limitation, the hoops 210, 211 and 212 are handled so that the intermediate hoop 212 is substantially concentric with the internal hoop 211 and that their diameter is substantially identical.

Une troisième étape consiste à réitérer les première et deuxième étapes réalisées ci-avant, les deux points à rabattre l'un contre l'autre étant deux points diamétralement opposés de l'arceau périphérique 210, tel qu'illustré par la figure 7. La tête 20 présente alors une forme de disque dont le diamètre est sensiblement égal au diamètre de l'arceau interne 211, formé par une superposition de portions d'arceaux.A third step consists in repeating the first and second steps carried out above, the two points to be folded against one another being two diametrically opposed points of the peripheral hoop 210, as illustrated by figure 7 . The head 20 then has the shape of a disc, the diameter of which is substantially equal to the diameter of the internal arch 211, formed by a superposition of portions of arches.

Il y a lieu de noter que lorsque les arceaux périphérique 210 et intermédiaire 212 sont en position contrainte, ils exercent des efforts de tension dans la mesure où lesdits arceaux périphérique 210 et intermédiaire 212 cherchent à reprendre leur position libre, c'est-à-dire leur forme initiale, déployée.It should be noted that when the peripheral 210 and intermediate arches 212 are in the constrained position, they exert tension forces insofar as said peripheral 210 and intermediate arches 212 seek to return to their free position, that is to say say their initial, unfolded form.

La figure 8 représente une quatrième étape consistant à immobiliser la structure de soutien 21 dans sa configuration repliée résultant des étapes de pliage précédentes. En effet, il est nécessaire d'immobiliser les arceaux périphérique 210 et intermédiaire 212 à conserver cette forme. Cette étape d'immobilisation de la structure de soutien 21 est réalisée par un moyen d'attache 25 s'opposant aux efforts de tension exercés par les arceaux périphérique 210 et intermédiaire 212 visant à les ramener en position libre.The figure 8 shows a fourth step consisting in immobilizing the support structure 21 in its folded configuration resulting from the previous folding steps. Indeed, it is necessary to immobilize the peripheral 210 and intermediate 212 hoops to keep this shape. This step of immobilizing the support structure 21 is carried out by an attachment means 25 opposing the tension forces exerted by the peripheral 210 and intermediate arches 212 aiming to bring them back to the free position.

Tel que représenté par la figure 8 dans un exemple de réalisation non limitatif, le moyen d'attache 25 comprend une sangle fixée en périphérie de la tête 20, destinée à être disposée de part et d'autre de la tête 20 de sorte qu'elle entoure diamétralement ladite tête 20. La sangle peut être fixée à l'une de ses extrémités au point de tangence intérieure 23 des arceaux 210, 211 et 212, et peut comporter un moyen de fixation amovible de la sangle sur elle-même en un point d'attache.As represented by the figure 8 in a nonlimiting exemplary embodiment, the attachment means 25 comprises a strap fixed to the periphery of the head 20, intended to be placed on either side of the head 20 so that it diametrically surrounds said head 20. The strap can be fixed at one of its ends to the internal tangent point 23 of the hoops 210, 211 and 212, and can include a means for removable fixing of the strap on itself at an attachment point.

Préférentiellement, la tête 20 dispose de moyens de repère permettant à un utilisateur de déterminer la position des points de l'arceau périphérique 210 à rabattre l'un contre l'autre au cours d'au moins une des étapes décrites précédemment.Preferably, the head 20 has reference means allowing a user to determine the position of the points of the peripheral arch 210 to be folded against one another during at least one of the steps described above.

Ces moyens de repère peuvent être des marques de couleur fixées, par exemple, sur le ou les logements se développant le long de la périphérie de la toile 22.These marker means can be colored marks fixed, for example, on the housing (s) developing along the periphery of the fabric 22.

Il y a lieu de noter que le matériau constituant les arceaux périphérique 210 et intermédiaire 212, ainsi que leurs dimensions, sont déterminés de sorte que lesdits arceaux ne se déforment pas au delà de leur limite d'élasticité lors des étapes de pliage de la tête 20. Dans ce cadre, la déformation de ces arceaux périphérique 210 et intermédiaire 212 est toujours réversible.It should be noted that the material constituting the peripheral 210 and intermediate 212 hoops, as well as their dimensions, are determined so that said hoops do not deform beyond their elastic limit during steps of folding the head 20. In this context, the deformation of these peripheral 210 and intermediate 212 hoops is always reversible.

Pour modifier la position du parasol 10, d'une position de rangement à une position d'utilisation, le dépliage de la tête 20 est réalisé sans autre intervention de l'utilisateur que celle consistant à libérer ladite structure de soutien 21 du moyen d'attache 25.To modify the position of the parasol 10, from a storage position to a position of use, the unfolding of the head 20 is carried out without any intervention by the user other than that consisting in releasing said support structure 21 from the means of tie 25.

En effet, les efforts de tension exercés par les arceaux périphérique 210 et intermédiaire 212 tendent à ramener spontanément la structure de soutien en configuration déployée.Indeed, the tensile forces exerted by the peripheral 210 and intermediate 212 hoops tend to spontaneously return the support structure to the deployed configuration.

Dans d'autres exemples de réalisation de l'invention, le matériau constituant l'arceau périphérique 210, ainsi que les dimensions de sa section droite et de l'aire intérieure qu'il définit, sont tels qu'il présente une rigidité suffisamment importante pour maintenir la tête 20 dans une forme sensiblement plane lorsque la structure de soutien 21 est déployée, sans arceau intermédiaire 212. Il est du ressort de l'homme du métier, sur la base de ses connaissances générales, de réaliser un tel choix de matériau et de dimensions de l'arceau périphérique 210 adéquat.In other embodiments of the invention, the material constituting the peripheral arch 210, as well as the dimensions of its cross section and of the interior area which it defines, are such that it has a sufficiently high rigidity. to maintain the head 20 in a substantially planar shape when the support structure 21 is deployed, without an intermediate hoop 212. It is within the competence of those skilled in the art, on the basis of their general knowledge, to make such a choice of material and dimensions of the appropriate peripheral arch 210.

Claims (10)

  1. Parasol (10) comprising:
    - a leg (30) having a pole (32),
    - a head (20) secured to one end of said pole (32) and having a canvas (22) capable of filtering at least part of the sun's rays and a support structure (21) of said canvas (22), said support structure (21) being deformable between a first configuration, referred to as the "deployed configuration", in which the canvas (22) is stretched, and a second configuration, referred to as the "folded configuration", in which the canvas (22) is folded, the support structure (21) having a first hoop, referred to as a "peripheral hoop" (210), which is closed in on itself and lies in a plane in the deployed configuration of the support structure (21), the canvas (22) being fixed to the interior of the peripheral hoop (210) such that said canvas (22) is stretched in the interior of said peripheral hoop (210) in the deployed configuration of the support structure (21), the parasol (10) being characterized in that the support structure (21) comprises a second hoop, referred to as the "internal hoop" (211), which is closed in on itself, the internal hoop (211) being arranged in the interior of the peripheral hoop (210), contiguous at an inner tangential point (23), and substantially coplanar with said tangential point when the support structure (21) is in its deployed configuration.
  2. Parasol (10) according to claim 1, wherein the peripheral hoop (210) is resiliently deformable between a position referred to as the "free position", in which it is deployed so as to stretch the canvas (22), and a position referred to as the "constrained position", in which it is folded over itself in a substantially planar conformation.
  3. Parasol (10) according to either claim 1 or claim 2, wherein the head (20) is secured to said end of the pole (32) by an articulation system (24) comprising a first articulation means (243) which is fixed on the head (20) and a second articulation means (31) which is fixed on the pole (32), said first and second articulation means (243, 31) engaging with one another.
  4. Parasol (10) according to claim 3, wherein the first articulation means (243) is arranged at the periphery of the head (20).
  5. Parasol (10) according to either claim 3 or claim 4, wherein the first articulation means (243) and the second articulation means (31) are configured so as to allow the head (20) to be rotatable relative to the pole (31) by at least one degree of freedom.
  6. Parasol (10) according to any of claims 3 to 5, wherein the first articulation means (243) is fixed to a strut (240) which is fixed in the interior of the internal hoop (211) so as to extend between two diametrically opposite points of the internal hoop (211).
  7. Parasol (10) according to claim 1, wherein the support structure (21) has a third hoop, referred to as an "intermediate hoop" (212), which is closed in on itself, arranged between the peripheral hoop (210) and internal hoop (211) and fixed at an inner tangential point (23) of the peripheral hoop (210).
  8. Parasol (10) according to any of claims 1 to 7, wherein the pole (32) has an adjustable length.
  9. Parasol (10) according to any of claims 1 to 8, wherein the pole (32) comprises means (33) for fixing the parasol in the ground.
  10. Method for folding the head (20) of a parasol (10) according to any of claims 2 to 9, comprising:
    - a first step consisting in folding back two opposite points of the peripheral hoop (210) against one another, while applying a torsional force on said peripheral hoop so as to cause part of the head (20) to pivot substantially over one hundred and eighty degrees relative to a different part of said head (20),
    - a second step consisting in folding back the two parts of the head (20) against one another so as to form an intermediate arrangement in which the peripheral hoop (210) forms two rings superimposed one against the other,
    - a third step consisting in repeating the first and second steps on the intermediate arrangement thus formed so as to constrain the support structure (21) in its folded configuration, and
    - a fourth step consisting in locking the support structure (21) in said folded configuration by means of an attachment means (25).
EP16813081.3A 2015-11-26 2016-11-24 Foldable head-type parasol, and method for folding the head of such a parasol Active EP3379968B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1561412A FR3044207B1 (en) 2015-11-26 2015-11-26 FOLDING HEAD-TYPE UMBRELLA AND METHOD OF FOLDING THE HEAD OF SUCH AN UMBRELLA
PCT/FR2016/053080 WO2017089713A1 (en) 2015-11-26 2016-11-24 Foldable head-type parasol, and method for folding the head of such a parasol

Publications (2)

Publication Number Publication Date
EP3379968A1 EP3379968A1 (en) 2018-10-03
EP3379968B1 true EP3379968B1 (en) 2021-03-03

Family

ID=55300576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16813081.3A Active EP3379968B1 (en) 2015-11-26 2016-11-24 Foldable head-type parasol, and method for folding the head of such a parasol

Country Status (7)

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US (1) US10694823B2 (en)
EP (1) EP3379968B1 (en)
AU (1) AU2016358871B2 (en)
CA (1) CA3033139A1 (en)
FR (1) FR3044207B1 (en)
WO (1) WO2017089713A1 (en)
ZA (1) ZA201805709B (en)

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US10212996B2 (en) * 2015-02-05 2019-02-26 Theo Andreas Stewart-Stand Asymmetrical umbrella
USD925211S1 (en) * 2019-11-15 2021-07-20 Landscape Forms, Inc. Metal shade
USD925210S1 (en) * 2019-11-15 2021-07-20 Landscape Forms, Inc. Metal shade
USD925212S1 (en) * 2019-11-15 2021-07-20 Landscape Forms, Inc. Metal shade
FR3127102B1 (en) * 2021-09-17 2024-01-12 Carrefour Parasol with a flexible structure
USD1018017S1 (en) 2021-10-08 2024-03-19 Daniel Diaz Multi-tier umbrella canopy
FR3137701A1 (en) 2022-07-05 2024-01-12 Bruno Pluchard Portable folding shelter

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US10271622B2 (en) * 2017-07-31 2019-04-30 Ryan C. Fleming Portable sunshade
US20190053587A1 (en) * 2017-08-18 2019-02-21 Anton Auth Hand-held sun visor system

Also Published As

Publication number Publication date
EP3379968A1 (en) 2018-10-03
US20180343994A1 (en) 2018-12-06
AU2016358871A1 (en) 2018-07-12
ZA201805709B (en) 2019-11-27
CA3033139A1 (en) 2017-06-01
AU2016358871B2 (en) 2022-03-10
WO2017089713A1 (en) 2017-06-01
US10694823B2 (en) 2020-06-30
FR3044207A1 (en) 2017-06-02
FR3044207B1 (en) 2020-02-07

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