EP0290351B1 - Tent canvas support frame for a light shelter - Google Patents

Tent canvas support frame for a light shelter Download PDF

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Publication number
EP0290351B1
EP0290351B1 EP88401117A EP88401117A EP0290351B1 EP 0290351 B1 EP0290351 B1 EP 0290351B1 EP 88401117 A EP88401117 A EP 88401117A EP 88401117 A EP88401117 A EP 88401117A EP 0290351 B1 EP0290351 B1 EP 0290351B1
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EP
European Patent Office
Prior art keywords
frame
sides
pole
framework
arms
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Expired - Lifetime
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EP88401117A
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German (de)
French (fr)
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EP0290351A1 (en
Inventor
Jean Dalo
Pierre Dalo
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Individual
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Individual
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Priority to AT88401117T priority Critical patent/ATE54709T1/en
Publication of EP0290351A1 publication Critical patent/EP0290351A1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
    • E04H15/34—Supporting means, e.g. frames
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S135/00—Tent, canopy, umbrella, or cane
    • Y10S135/908—Super tent or canopy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S135/00—Tent, canopy, umbrella, or cane
    • Y10S135/909—Fitting

Definitions

  • the present invention relates to a frame forming a support for a tent fabric of a light shelter which is stretched in a substantially pyramidal shape.
  • US Pat. No. 3,810,481 has proposed a support frame for tent fabric, the central pole of which does not bear on the ground, but is held at its base in height, by rafters 30 and a guy system 44 , 47 located below these.
  • the present invention seeks to remedy these drawbacks by providing a frame of particularly simple design and making it possible to eliminate the descent of the central mast to the ground, while allowing tight connections of the frames in difficulties.
  • this frame forming a support for a substantially pyramidal tent canvas of a light shelter which is stretched between the top of a vertical central pole, and a polygonal base, said frame comprising a rigid frame, in the shape of a first regular polygon, alongside which the canvas is hung, the mast being held by inclined rigid arms whose ends are coupled, in common, to the mast, is characterized in that the lower end of the central mast is located at a level higher than the horizontal plane of the polygonal frame, the lower end of the mast is rigidly coupled to the upper part of said inclined rigid arms, the lower parts of which are coupled to the sides of the polygonal frame, at connection points spaced from the tops of the polygonal frame, the connecting points of two neighboring inclined arms with two adjacent sides of the frame being symmetrical with respect to the angle bisector formed by these two sides, and crosspieces extend respectively across the angles of the frame, between attachment points on the sides of the frame which are symmetrical with respect to the bisector of each angle, thus forming a second
  • the frame according to the invention comprises at its base a frame in the shape of a regular polygon (triangular, square, hexagonal, etc.), it is possible to juxtapose several frames, so as to increase the total area covered, the polygonal frames of two neighboring reinforcements then being joined by two of their adjacent sides held tight against one another by any appropriate means.
  • a regular polygon triangular, square, hexagonal, etc.
  • the polygonal frame of the frame can rest on the ground by means of posts, low walls etc ... or even it can simply cover a work. In all cases there is no transfer of internal forces to the support structure and the only forces to which this support structure of the armature is subjected, are limited to the weight of this armature and to the load due the effects of snow or wind.
  • the light shelter which is shown in Figure 1, comprises a tent fabric 1 of pyramidal shape which is stretched over a frame 2 according to the invention.
  • This frame 2 essentially comprises a horizontal lower frame 3, in the form of a regular polygon, of a square in the particular case illustrated, a central vertical mast 4, on the upper end of which bears the top of the pyramid tent fabric 1 , inclined rigid arms 5 ensuring the connection between the lower end of the central mast 4 and the sides of the frame 3, and cross members 6 extending in the corners of the frame 3.
  • the central vertical mast 4 consists of two tubes 7 and 8 fitted one inside the other and forming a telescopic assembly, namely an upper tube 7 of small diameter engaged in a lower tube 8 of larger diameter, and it is provided with a device making it possible to vary the total height of the telescopic mast consisting of the two tubes 7, 8 and consequently the tension of the fabric 1.
  • the lower tube 8 of the mast 4 is closed, at its lower end, by a transverse circular flange 9 which is crossed by a screw 11 forming part of a device for adjusting the tension of the fabric. This screw 11 is screwed into the lower bottom 12, forming a nut, of the upper tube 7, or else into a suitable nut integral with this tube and placed higher.
  • the circular flange 9 which forms the bottom of the lower tube 8, has a diameter greater than that of this tube and it carries, on its cylindrical lateral surface 9a, end pieces 13 distributed around the vertical axis of the mast and in number equal to that of the arms 5.
  • the axis of each of the end pieces 13 is inclined downward so as to coincide with that of the rigid connecting arms 5 once these have been mounted.
  • Each of the arms 5 is constituted by a section of tube whose internal diameter corresponds to the external diameter of a nozzle 13, so as to be able to be fitted thereon.
  • Each arm 5 is also fitted, by its lower end part, onto a cylindrical end piece 14, of external diameter equal to the internal diameter of the tubular arm 5 and which is fixed to one side 15 of the frame, each end piece 14 being inclined, with respect to at side 15, so that its axis coincides with that of the rigid link arm 5 once it is mounted.
  • Each side 15 of the frame 3 is advantageously constituted by a hollow section, for example having a square cross section, and in this case each end piece 14 is fixed, for example by welding, to the internal vertical face 15a of the section 15.
  • the end pieces 14 fixed to two adjacent sides 15, that is to say perpendicular to the frame 3, are symmetrical with respect to the bisector of the angle formed by these two sides , in other words the two rigid link arms 5, connected to these two end pieces 14, are themselves symmetrical to one another with respect to a vertical plane containing the bisector of the angle formed by the two adjacent sides 15 . Therefore the frame comprises a number of inclined arms 5 double that of the sides 15 of the frame 3, in other words, in the particular case where the frame 3 is square, it comprises four pairs of arms 5 associated respectively with the four angles of the frame 3.
  • each horizontal crosspiece 6 extends, across an angle of the frame 3, between two symmetrical attachment points relative to the bisector of the angle. These attachment points are located in the immediate vicinity of the end pieces 14, as can best be seen in FIG. 4.
  • Each attachment point can be constituted, for example, by a vertical screw 16 fixed, for example by welding, on the upper horizontal face 15b of the profile 15 constituting the side of the frame 3, this screw being intended to extend through a hole 17 provided in the end part of the cross-member 6.
  • a nut 18 which is screwed onto the screw 16, ensures then the locking of the cross-member 6 on the upper face 15b on the side 15.
  • the frame 3 can simply rest on its own on an appropriate support structure, or alternatively by means of corner posts 19 as shown in FIGS. 1 and 2.
  • Each post 19 can have, at its upper end , a horizontal bracket 21, the two branches 21a and 21b of which have a square cross section smaller than the internal cross section of each profile 15, so as to be able to fit closely into these profiles 15.
  • the frame according to the invention lends itself particularly well to its juxtaposition, in a sealed manner, with another frame of the same type. It suffices in fact to attach the two base frames of the two frames and to assemble them, along two adjacent sides 15, by any suitable means.
  • this assembly can be achieved by means of horizontal and transverse bolts 22 passing through holes drilled opposite in the two adjoining sides 15. The lower end parts of the two tent fabrics 1 are thus tightly packed against each other.
  • the two adjacent sides 15 are held tight against one another by means of a stirrup 23 extending under the two sides 15, the two of which vertical wings, directed upwards, enclose the two sides 15 and which is locked by means of a screw 24.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Tents Or Canopies (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

1. Framework forming support for a substantially pyramidal tent canvas of a light shelter which is stretched between the top of a vertical central pole and a polygonal base, said framework comprising a rigid frame in the form of a first regular polygon, to the sides (15) of which the canvas (1) is hooked, the pole being maintained by inclined rigid arms of which the ends are coupled, in common, to the pole, characterized in that the lower end of the central pole (4) is located at a level higher than the horizontal plane of the polygonal frame (3), the lower end of the pole (4) is rigidly coupled to the upper part of said inclined rigid arms (5) of which the lower parts are coupled to the sides (15) of the polygonal frame (3), at points of connection (14) spaced apart from the apices of the polygonal frame (3), the points of connection (14) of two adjacent inclined arms (5) with two adjacent sides (15) of the frame (3) being symmetrical with respect to the bisectrix of the angle formed by these two sides (15), and crosspieces (6) extending respectively across the angles of the frame, between points of hooking (16) on the sides of the frame (3) which are symmetrical with respect to the bisectrix of each angle, thus forming a second polygon inscribed in the first with a number of sides double that of the first polygon, the high part of the pole (4) being connected to the canvas (1) which is stretched between this upper part and the first polygon.

Description

La présente invention concerne une armature formant support pour une toile de tente d'un abri léger laquelle est tendue sous une forme sensiblement pyramidale.The present invention relates to a frame forming a support for a tent fabric of a light shelter which is stretched in a substantially pyramidal shape.

Là plupart des structures textiles tendues qui constituent des «toiles de tente», sont généralement bordées, le long de leur périmètre inférieur par lequel elles sont raccordées à des éléments d'accrochage de la toile, par des câbles appelés «ralingues» qui reprennent les efforts dus à la tension de la toile, et qui résultent soit de la tension de mise en forme de celle-ci soit des effets de la neige et du vent sur la toile. Les charges de traction sont reportées d'une part sur un mât central prenant appui au sol et d'autre part sur un ensemble de matériaux en compression et de haubans en traction.Most of the stretched textile structures which constitute “tent fabrics” are generally bordered, along their lower perimeter by which they are connected to hanging elements of the canvas, by cables called “ropes” which take up the stresses due to the tension of the fabric, and which result either from the formatting tension thereof or from the effects of snow and wind on the canvas. The tensile loads are transferred on the one hand to a central mast resting on the ground and on the other hand to a set of materials in compression and shrouds in traction.

Une telle structure présente plusieurs inconvénients. En premier lieu la présence du mât central en appui sur le sol est très souvent une cause de gêne pour la circulation à l'intérieur de l'abri et elle limite les possibilités d'utilisation. Par ailleurs les câbles «ralingues» prennent, sous l'effet de la tension de la toile, une forme courbe entre deux points d'accrochage, ce qui rend très difficile les raccordements étanches de deux ou plusieurs structures entre elles.Such a structure has several drawbacks. Firstly, the presence of the central mast resting on the ground is very often a cause of discomfort for circulation inside the shelter and it limits the possibilities of use. In addition, the “roping” cables take, under the effect of the tension of the fabric, a curved shape between two attachment points, which makes it very difficult to tightly connect two or more structures to each other.

On a proposé dans le brevet US-3 810 481 une armature support pour toile de tente, dont le mât central ne prend pas appui sur le sol, mais est maintenu à sa base en hauteur, par des arbalétriers 30 et un système de haubanage 44, 47 situé en-dessous de ces derniers.US Pat. No. 3,810,481 has proposed a support frame for tent fabric, the central pole of which does not bear on the ground, but is held at its base in height, by rafters 30 and a guy system 44 , 47 located below these.

Or un tel système de haubanage ne permet pas l'obtention d'une forme pyramidale curviligne très marquée et très pointue.However, such a guying system does not make it possible to obtain a very marked and very pointed curvilinear pyramidal shape.

La présente invention vise à remédier à ces inconvénients en procurant une armature de conception particulièrement simple et permettant de supprimer la descente du mât central jusqu'au sol, tout en autorisant des raccordements étanches des armatures dans difficultés.The present invention seeks to remedy these drawbacks by providing a frame of particularly simple design and making it possible to eliminate the descent of the central mast to the ground, while allowing tight connections of the frames in difficulties.

A cet effet cette armature formant support pour une toile de tente sensiblement pyramidale d'un abri léger qui est tendue entre le sommet d'un mât central vertical, et une base polygonale, ladite armature comportant un cadre rigide, en forme d'un premier polygone régulier, aux côtés duquel est accrochée la toile, le mât étant maintenu par des bras rigides inclinés dont les extrémités sont accouplées, en commun, au mât, est caractérisée par le fait que l'extrémité inférieure du mât central est située à un niveau supérieur au plan horizontal du cadre polygonal, l'extrémité inférieure du mât est accouplée rigidement à la partie supérieure desdits bras rigides inclinés dont les parties inférieures sont accouplées aux côtés du cadre polygonal, en des points de liaison écartés des sommets du cadre polygonal, les points de liaison de deux bras inclinés voisins avec deux côtés adjacents du cadre étant symétriques par rapport à la bissectrice de l'angle formé par ces deux côtés, et des traverses s'étendent respectivement en travers des angles du cadre, entre des points d'accrochage sur les côtés du cadre qui sont symétriques par rapport à la bissectrice de chaque angle, formant ainsi un second polygone inscrit dans le premier à nombre de côtés double de celui du premier polygone, la partie haute du mât étant liée à la toile qui est tendue entre cette partie haute et le premier polygone.To this end, this frame forming a support for a substantially pyramidal tent canvas of a light shelter which is stretched between the top of a vertical central pole, and a polygonal base, said frame comprising a rigid frame, in the shape of a first regular polygon, alongside which the canvas is hung, the mast being held by inclined rigid arms whose ends are coupled, in common, to the mast, is characterized in that the lower end of the central mast is located at a level higher than the horizontal plane of the polygonal frame, the lower end of the mast is rigidly coupled to the upper part of said inclined rigid arms, the lower parts of which are coupled to the sides of the polygonal frame, at connection points spaced from the tops of the polygonal frame, the connecting points of two neighboring inclined arms with two adjacent sides of the frame being symmetrical with respect to the angle bisector formed by these two sides, and crosspieces extend respectively across the angles of the frame, between attachment points on the sides of the frame which are symmetrical with respect to the bisector of each angle, thus forming a second polygon inscribed in the first with number of sides double that of the first polygon, the upper part of the mast being linked to the fabric which is stretched between this upper part and the first polygon.

Du fait que l'armature suivant l'invention comporte à sa base un cadre en forme de polygone régulier (triangulaire, carré, hexagonal etc...) , il est possible de juxtaposer plusieurs armatures, de manière à augmenter la surface totale couverte, les cadres polygonaux de deux armatures voisines étant alors accolés par deux de leurs côtés adjacents maintenus serrés l'un contre l'autre par tous moyens appropriés.Because the frame according to the invention comprises at its base a frame in the shape of a regular polygon (triangular, square, hexagonal, etc.), it is possible to juxtapose several frames, so as to increase the total area covered, the polygonal frames of two neighboring reinforcements then being joined by two of their adjacent sides held tight against one another by any appropriate means.

Le cadre polygonal de l'armature peut reposer sur le sol par l'intermédiaire de poteaux, murets etc... ou bien encore il peut simplement coiffer un ouvrage. Dans tous les cas il n'y a aucun report d'efforts internes sur la structure d'appui et les seuls efforts auxquels est soumise cette structure d'appui de l'armature, sont limités au poids de cette armature et à la charge due aux effets de la neige ou du vent.The polygonal frame of the frame can rest on the ground by means of posts, low walls etc ... or even it can simply cover a work. In all cases there is no transfer of internal forces to the support structure and the only forces to which this support structure of the armature is subjected, are limited to the weight of this armature and to the load due the effects of snow or wind.

On décrira ci-après,à titre d'exemple non limitatif, une forme d'exécution de la présente invention,en référence au dessin annexé sur lequel :

  • La figure 1 est une vue en perspective d'un abri léger comportant une toile de tente tendue sur une armature suivant l'invention.
  • La figure 2 est une vue en perspective éclatée de l'armature suivant l'invention.
  • La figure 3 est une vue en perspective, à plus grande échelle, illustrant un mode de liaison des bras rigides inclinés avec l'extrémité inférieure du mât vertical central.
  • La figure 4 est une vue en perspective d'un dispositif de liaison d'un côté du cadre avec un bras incliné et une traverse.
  • La figure 5 est une vue en perspective, avec arrachement partiel, d'un dispositif de liaison de deux côtés adjacents d'un même cadre.
  • Les figures 6 et 7 sont des vues en coupe verticale de deux cadres accolés de deux armatures adjacentes maintenus assemblés par différents dispositifs de blocage.
An embodiment of the present invention will be described below, by way of non-limiting example, with reference to the appended drawing in which:
  • Figure 1 is a perspective view of a light shelter comprising a tent canvas stretched over a frame according to the invention.
  • Figure 2 is an exploded perspective view of the frame according to the invention.
  • Figure 3 is a perspective view, on a larger scale, illustrating a method of connecting the inclined rigid arms with the lower end of the central vertical mast.
  • Figure 4 is a perspective view of a connecting device on one side of the frame with an inclined arm and a cross member.
  • Figure 5 is a perspective view, partially broken away, of a connecting device of two adjacent sides of the same frame.
  • Figures 6 and 7 are vertical sectional views of two adjoining frames of two adjacent frames kept assembled by different locking devices.

L'abri léger qui est représenté sur la figure 1, comprend une toile de tente 1 de forme pyramidale qui est tendue sur une armature 2 suivant l'invention. Cette armature 2 comporte essentiellement un cadre inférieur horizontal 3, en forme de polygone régulier, d'un carré dans le cas particulier illustré, un mât vertical central 4, sur l'extrémité supérieure duquel prend appui le sommet de la toile de tente pyramidale 1, des bras rigides inclinés 5 assurant la liaison entre l'extrémité inférieure du mât central 4 et les côtés du cadre 3, et des traverses 6 s'étendant dans les angles du cadre 3.The light shelter which is shown in Figure 1, comprises a tent fabric 1 of pyramidal shape which is stretched over a frame 2 according to the invention. This frame 2 essentially comprises a horizontal lower frame 3, in the form of a regular polygon, of a square in the particular case illustrated, a central vertical mast 4, on the upper end of which bears the top of the pyramid tent fabric 1 , inclined rigid arms 5 ensuring the connection between the lower end of the central mast 4 and the sides of the frame 3, and cross members 6 extending in the corners of the frame 3.

Comme on peut mieux le voir sur les figures 2 et 3, le mât vertical central 4 est constitué de deux tubes 7 et 8 emboîtés l'un dans l'autre et formant un ensemble télescopique, à savoir un tube supérieur 7 de petit diamètre engagé dans un tube inférieur 8 de plus grand diamètre, et il est pourvu d'un dispositif permettant de faire varier la hauteur totale du mât télescopique constitué des deux tubes 7,8 et par conséquent la tension de la toile 1. Le tube inférieur 8 du mât 4 est fermé, à son extrémité inférieure, par un flasque circulaire transversal 9 qui est traversé par une vis 11 faisant partie d'un dispositif de réglage de la tension de la-toile. Cette vis 11 est vissée dans le fond inférieur 12, formant écrou, du tube supérieur 7, ou bien dans un écrou approprié et solidaire de ce tube et placé plus haut. Le flasque circulaire 9 qui forme le fond du tube inférieur 8, a un diamètre supérieur à celui de ce tube et il porte, sur sa surface latérale cylindrique 9a, des embouts 13 répartis autour de l'axe vertical du mât et en nombre égal à celui des bras 5. L'axe de chacun des embouts 13 est incliné vers le bas de manière à coinci- der avec celui des bras rigides de liaison 5 une fois ceux-ci montés. Chacun des bras 5 est constitué par un tronçon de tube dont le diamètre interne correspond au diamètre externe d'un embout 13, de manière à pouvoir être emboîté sur celui-ci. Chaque bras 5 est par ailleurs emboîté, par sa partie extrême inférieure, sur un embout cylindrique 14, de diamètre externe égal au diamètre interne du bras tubulaire 5 et qui est fixé à un côté 15 du cadre, chaque embout 14 étant incliné, par rapport au côté 15, de manière que son axe coincide avec celui du bras de liaison rigide 5 une fois celui-ci monté. Chaque côté 15 du cadre 3 est avantageusement constitué par un profilé creux, ayant par exemple une section droite carrée, et dans ce cas chaque embout 14 est fixé, par exemple par soudure, à la face verticale interne 15a du profilé 15.As can be better seen in Figures 2 and 3, the central vertical mast 4 consists of two tubes 7 and 8 fitted one inside the other and forming a telescopic assembly, namely an upper tube 7 of small diameter engaged in a lower tube 8 of larger diameter, and it is provided with a device making it possible to vary the total height of the telescopic mast consisting of the two tubes 7, 8 and consequently the tension of the fabric 1. The lower tube 8 of the mast 4 is closed, at its lower end, by a transverse circular flange 9 which is crossed by a screw 11 forming part of a device for adjusting the tension of the fabric. This screw 11 is screwed into the lower bottom 12, forming a nut, of the upper tube 7, or else into a suitable nut integral with this tube and placed higher. The circular flange 9 which forms the bottom of the lower tube 8, has a diameter greater than that of this tube and it carries, on its cylindrical lateral surface 9a, end pieces 13 distributed around the vertical axis of the mast and in number equal to that of the arms 5. The axis of each of the end pieces 13 is inclined downward so as to coincide with that of the rigid connecting arms 5 once these have been mounted. Each of the arms 5 is constituted by a section of tube whose internal diameter corresponds to the external diameter of a nozzle 13, so as to be able to be fitted thereon. Each arm 5 is also fitted, by its lower end part, onto a cylindrical end piece 14, of external diameter equal to the internal diameter of the tubular arm 5 and which is fixed to one side 15 of the frame, each end piece 14 being inclined, with respect to at side 15, so that its axis coincides with that of the rigid link arm 5 once it is mounted. Each side 15 of the frame 3 is advantageously constituted by a hollow section, for example having a square cross section, and in this case each end piece 14 is fixed, for example by welding, to the internal vertical face 15a of the section 15.

Comme on peut mieux le voir sur les figures 1 et 2 les embouts 14 fixés à deux côtés adjacents 15, c'est-à-dire perpendiculaires du cadre 3, sont symétriques par rapport à la bissectrice de l'angle formé par ces deux côtés, autrement dit les deux bras de liaison rigides 5, raccordés à ces deux embouts 14, sont eux-mêmes symétriques l'un de l'autre par rapport à un plan vertical contenant la bissectrice de l'angle formé par les deux côtés 15 adjacents. De ce fait l'armature comprend un nombre de bras inclinés 5 double de celui des côtés 15 du cadre 3, autrement dit, dans le cas particulier où le cadre 3 est carré, elle comprend quatre paires de bras 5 associées respectivement aux quatre angles du cadre 3.As can best be seen in FIGS. 1 and 2 the end pieces 14 fixed to two adjacent sides 15, that is to say perpendicular to the frame 3, are symmetrical with respect to the bisector of the angle formed by these two sides , in other words the two rigid link arms 5, connected to these two end pieces 14, are themselves symmetrical to one another with respect to a vertical plane containing the bisector of the angle formed by the two adjacent sides 15 . Therefore the frame comprises a number of inclined arms 5 double that of the sides 15 of the frame 3, in other words, in the particular case where the frame 3 is square, it comprises four pairs of arms 5 associated respectively with the four angles of the frame 3.

Par ailleurs chaque traverse horizontale 6 s'étend, en travers d'un angle du cadre 3, entre deux points d'accrochage symétriques par rapport à la bissectrice de l'angle. Ces points d'accrochage sont situés à proximité immédiate des embouts 14, comme on peut mieux le voir sur la figure 4. Chaque point d'accrochage peut être constitué, par exemple, par une vis verticale 16 fixée, par exemple par soudure, sur la face horizontale supérieure 15b du profilé 15 constituant le côté du cadre 3, cette vis étant destinée à s'étendre à travers un trou 17 prévu dans la partie extrême de la traverse 6. Un écrou 18 qui est vissé sur la vis 16, assure alors le blocage de la traverse 6 sur la face supérieure 15b du côté 15.Furthermore each horizontal crosspiece 6 extends, across an angle of the frame 3, between two symmetrical attachment points relative to the bisector of the angle. These attachment points are located in the immediate vicinity of the end pieces 14, as can best be seen in FIG. 4. Each attachment point can be constituted, for example, by a vertical screw 16 fixed, for example by welding, on the upper horizontal face 15b of the profile 15 constituting the side of the frame 3, this screw being intended to extend through a hole 17 provided in the end part of the cross-member 6. A nut 18 which is screwed onto the screw 16, ensures then the locking of the cross-member 6 on the upper face 15b on the side 15.

On voit, d'après la description qui précède, que la reprise de la charge du mât central 4 est assurée, au-dessus du niveau du cadre 2, par les bras de liaison rigides 5 qui prennent appui directement sur le cadre 3. Par ailleurs les traverses 6 qui s'étendent entre les côtés 15 adjacents, ont pour effet d'annuler les poussées exercées par les bras 5 sur les côtés 15 du cadre 3. Les positions des embouts 14 sur les côtés 15 du cadre 3, c'est-à-dire les points d'application des efforts exercés par les bras 5, sont déterminés de manière à obtenir des moments fléchissants maximaux égaux sur le cadre 3, par suite de la tension de la toile 1, d'un bras 5 à l'autre et d'un bras 5 à l'angle du cadre. Cette disposition permet de diminuer l'importance des profilés 15 constituant le cadre 3 et d'obtenir des flèches compatibles avec la réalisation d'une bonne étanchéité.We see, from the above description, that the resumption of the load of the central mast 4 is ensured, above the level of the frame 2, by the rigid connecting arms 5 which bear directly on the frame 3. By elsewhere the crosspieces 6 which extend between the adjacent sides 15, have the effect of canceling the thrusts exerted by the arms 5 on the sides 15 of the frame 3. The positions of the end pieces 14 on the sides 15 of the frame 3, c ' that is to say the points of application of the forces exerted by the arms 5, are determined so as to obtain equal maximum bending moments on the frame 3, as a result of the tension of the fabric 1, of an arm 5 to the other and an arm 5 at the corner of the frame. This arrangement makes it possible to reduce the importance of the sections 15 constituting the frame 3 and to obtain arrows compatible with the achievement of good sealing.

Le cadre 3 peut reposer simplement de lui-même sur une structure support appropriée, ou bien encore par l'intermédiaire de poteaux d'angle 19 comme il est représenté sur les figures 1 et 2. Chaque poteau 19 peut comporter, à son extrémité supérieure, une équerre horizontale 21 dont les deux branches 21 a et 21 b, ont une section droite carrée plus petite que la section droite interne de chaque profil 15, de manière à pouvoir s'emboîter étroitement dans ces profilés 15.The frame 3 can simply rest on its own on an appropriate support structure, or alternatively by means of corner posts 19 as shown in FIGS. 1 and 2. Each post 19 can have, at its upper end , a horizontal bracket 21, the two branches 21a and 21b of which have a square cross section smaller than the internal cross section of each profile 15, so as to be able to fit closely into these profiles 15.

L'armature suivant l'invention se prête particulièrement bien à sa juxtaposition, d'une manière étanche, avec une autre armature du même type. Il suffit en effet d'accoler les deux cadres de base des deux armatures et de les assembler, le long de deux côtés 15 adjacents, par tous moyens appropriés.The frame according to the invention lends itself particularly well to its juxtaposition, in a sealed manner, with another frame of the same type. It suffices in fact to attach the two base frames of the two frames and to assemble them, along two adjacent sides 15, by any suitable means.

Comme on peut mieux le voir sur la figure 6, cet assemblage peut être réalisé au moyen de boulons horizontaux et transversaux 22 traversant des trous percés en regard dans les deux côtés accolés 15. Les parties extrêmes inférieures des deux toiles de tente 1 se trouvent ainsi serrées l'une contre l'autre d'une manière étanche.As can be better seen in Figure 6, this assembly can be achieved by means of horizontal and transverse bolts 22 passing through holes drilled opposite in the two adjoining sides 15. The lower end parts of the two tent fabrics 1 are thus tightly packed against each other.

Dans la variante d'exécution de l'invention représentée sur la figure 7, les deux côtés 15 adjacents sont maintenus serrés l'un contre l'autre au moyen d'un étrier 23 s'étendant sous les deux côtés 15, dont les deux ailes verticales, dirigées vers le haut, enserrent les deux côtés 15 et qui est bloqué au moyen d'une vis 24.In the variant embodiment of the invention shown in FIG. 7, the two adjacent sides 15 are held tight against one another by means of a stirrup 23 extending under the two sides 15, the two of which vertical wings, directed upwards, enclose the two sides 15 and which is locked by means of a screw 24.

Claims (9)

1. Framework forming support for a substantially pyramidal tent canvas of a light shelter which is stretched between the top of a vertical central pole and a polygonal base, said framework comprising a rigid frame in the form of a first regular polygon, to the sides (15) of which the canvas (1) is hooked, the pole being maintained by inclined rigid arms of which the ends are coupled, in common, to the pole, characterized in that the lower end of the central pole (4) is located at a level higher than the horizontal plane of the polygonal frame (3), the lower end of . the pole (4) is rigidly coupled to the upper part of said inclined rigid arms (5) of which the lower parts are coupled to the sides (15) of the polygonal frame (3), at points of connection (14) spaced apart from the apices of the polygonal frame (3), the points of connection (14) of two adjacent inclined arms (5) with two adjacent sides (15) of the frame (3) being symmetrical with respect to the bisectrix of the angle formed by these two sides (15), and crosspieces (6) extending respectively across the angles of the frame, between points of hooking (16) on the sides of the frame (3) which are symmetrical with respect to the bisectrix of each angle, thus forming a second polygon inscribed in the first with a number of sides double that of the first polygon, the high part of the pole (4) being connected to the canvas (1) which is stretched between this upper part and the first polygon.
2. Framework according to claim 1, characterized in that the lower tube (8) of the pole (4) is closed, at its lower end, by a transverse circular plate (9) which bears on its cylindrical lateral surface (9a) a plurality of connecting pieces (13) distributed about the vertical axis of the pole, and the axis of each of the connecting pieces (13) is inclined downwardly so as to merge with that of the rigid connecting arms (5) once the latter are mounted.
3. Framework according to claim 2, characterized in that each of the arms (5) is constituted by a section of tube of which the inner diameter corresponds to the outer diameter of a connecting piece (13), so as to be able to be fitted thereon, and it is furthermore fitted, by its lower end part, on a cylindrical connecting piece (14), of outer diameter equal to the inner diameter of the tubular arm (5) and which is fixed to one side (15) of the frame, each connecting piece (14) being inclined, with respect to side (15), so that its axis merges with that of the rigid connecting arm (5) once the latter is mounted.
4. Framework according to either one of claims 2 and 3, characterized in that the lower transverse circular plate (9) of the lower tube (8) of the pole (4) is traversed by a screw (11) forming part of a device for adjusting the tension of the canvas and this screw (11) is screwed in the lower bottom (12), forming nut, of the upper tube (7), or in an appropriate nut fast with this tube and placed higher.
5. Framework according to either one of claims 3 and 4, characterized in that each side (15) of the frame (3) is constituted by a hollow section, and each connecting piece (14) is fixed to the inner vertical face (15a) of the section (15).
6. Framework according to claim 5, characterized in that the connecting pieces (14), fixed to two adjacent sides (15) of the frame (3), are symmetrical with respect to the bisectrix of the angle formed by these two sides.
7. Framework according to any one of the preceding claims, characterized in that each point of hooking of a crosspiece (6) is constituted by a vertical screw (16) fixed on the upper horizontal face (15b) of the side of the frame (3), this screw being adapted to extend through a hole (17) provided in the end part of the crosspiece (6), and a nut (18), which is screwed on the screw (16), ensures blocking of the crosspiece (6) on the upper face (15b) of the side (15).
8. Framework according to any one of the preceding claims, characterized in that its frame (3) is assembled with the frame (3) of an adjacent framework, along two adjacent sides (15), by means of horizontal and transverse bolts (22) traversing holes pierced opposite in the two attached sides (15).
9. Framework according to any one of claims 1 to 7, characterized in that its frame (3) is assembled with the frame (3) of an adjacent framework, along two adjacent sides (15), by means of a stirrup element (23) extending beneath the two sides (15), of which the two vertical sides, directed upwardly, encompass the two sides (15) and which is blocked by means of a screw (24).
EP88401117A 1987-05-07 1988-05-06 Tent canvas support frame for a light shelter Expired - Lifetime EP0290351B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88401117T ATE54709T1 (en) 1987-05-07 1988-05-06 CANOPY SUPPORT FRAME FOR A LIGHT SHELTER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8706477 1987-05-07
FR8706477A FR2614920B1 (en) 1987-05-07 1987-05-07 SUPPORT FRAME FOR A TENT CANVAS OF A LIGHT SHELTER

Publications (2)

Publication Number Publication Date
EP0290351A1 EP0290351A1 (en) 1988-11-09
EP0290351B1 true EP0290351B1 (en) 1990-07-18

Family

ID=9350894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88401117A Expired - Lifetime EP0290351B1 (en) 1987-05-07 1988-05-06 Tent canvas support frame for a light shelter

Country Status (8)

Country Link
US (1) US4890634A (en)
EP (1) EP0290351B1 (en)
AT (1) ATE54709T1 (en)
AU (1) AU598668B2 (en)
CA (1) CA1301586C (en)
DE (1) DE3860324D1 (en)
ES (1) ES2017011B3 (en)
FR (1) FR2614920B1 (en)

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US6134844A (en) 1990-02-14 2000-10-24 Steelcase Inc. Method and apparatus for displaying information
US6170200B1 (en) 1990-02-14 2001-01-09 Steelcase Development Inc. Furniture system
US6003275A (en) 1990-02-14 1999-12-21 Steelcase Development Inc. Furniture system
US5259077A (en) * 1992-04-17 1993-11-09 Ronald Hager Swimming pool cover elevation device
AU674408B2 (en) * 1993-04-15 1996-12-19 Tentnology Limited A structure
US5490532A (en) * 1994-07-08 1996-02-13 Colorado Mineral Strike, Inc. Adjustable tension shelter assembly
US6250322B1 (en) * 1999-02-16 2001-06-26 William H. Porter Umbrella-shaped shelter
US7409963B2 (en) * 2004-11-05 2008-08-12 Go Papa, Lllp Corner molding and stop assembly for collapsible shelter
CN100348828C (en) * 2005-09-30 2007-11-14 徐千里 Garret tent
US7814921B1 (en) * 2006-12-08 2010-10-19 Hendee Enterprises, Inc. Mast supported shade canopy
JP2015025238A (en) * 2013-07-24 2015-02-05 株式会社キャラバンジャパン Tent
US10161146B2 (en) * 2013-12-20 2018-12-25 Sitecover Aps On-site mobile facility
CN106677603A (en) * 2017-01-04 2017-05-17 简震 Tent structure and putting up method thereof

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US988401A (en) * 1909-12-23 1911-04-04 Charles H Stonebridge Tent.
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US1642267A (en) * 1923-11-24 1927-09-13 Rush Outing Co Inc Folding tent
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GB8700911D0 (en) * 1987-01-16 1987-02-18 Aquila Shelters Ltd Tent structure

Also Published As

Publication number Publication date
CA1301586C (en) 1992-05-26
FR2614920A1 (en) 1988-11-10
FR2614920B1 (en) 1989-08-11
AU1561088A (en) 1988-11-10
ATE54709T1 (en) 1990-08-15
US4890634A (en) 1990-01-02
EP0290351A1 (en) 1988-11-09
ES2017011B3 (en) 1990-12-16
DE3860324D1 (en) 1990-08-23
AU598668B2 (en) 1990-06-28

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