EP0313461A1 - Flexible shaft for use to join two openings, and particularly to canalize a luminous flux from a light catching opening to a light spreading opening, and building-room natural lighting system using said flexible shaft - Google Patents

Flexible shaft for use to join two openings, and particularly to canalize a luminous flux from a light catching opening to a light spreading opening, and building-room natural lighting system using said flexible shaft Download PDF

Info

Publication number
EP0313461A1
EP0313461A1 EP88402638A EP88402638A EP0313461A1 EP 0313461 A1 EP0313461 A1 EP 0313461A1 EP 88402638 A EP88402638 A EP 88402638A EP 88402638 A EP88402638 A EP 88402638A EP 0313461 A1 EP0313461 A1 EP 0313461A1
Authority
EP
European Patent Office
Prior art keywords
sheath
light
conduit
frame
flexible conduit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88402638A
Other languages
German (de)
French (fr)
Other versions
EP0313461B1 (en
Inventor
Patrice Chefson
Jean-Claude Maillet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siplast SA
Spiragaine SA
Original Assignee
Siplast SA
Spiragaine SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siplast SA, Spiragaine SA filed Critical Siplast SA
Priority to AT88402638T priority Critical patent/ATE57561T1/en
Publication of EP0313461A1 publication Critical patent/EP0313461A1/en
Application granted granted Critical
Publication of EP0313461B1 publication Critical patent/EP0313461B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03Sky-lights; Domes; Ventilating sky-lights
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/32Translucent ceilings, i.e. permitting both the transmission and diffusion of light
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/14Junctions of roof sheathings to chimneys or other parts extending above the roof
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/03Sky-lights; Domes; Ventilating sky-lights
    • E04D2013/034Daylight conveying tubular skylights
    • E04D2013/0345Daylight conveying tubular skylights with skylight shafts extending from roof to ceiling

Definitions

  • the invention relates to a flexible conduit usable for connecting two openings and more particularly for channeling a light flux from an opening capturing light towards an opening diffusing the light thus channeled, said openings being located in parallel planes or forming between them an acute angle. It also relates to a system for natural lighting of a room in a building using said duct to channel the light.
  • the securing of the conduit to the sheath associated with the sensor or light-diffusing element supposes that the wire of the spiral spring and the fabric wound on the spring are made integral with a frame, which is not easy to achieve. Finally, it is difficult to carry out such securing once the elements of the system are in place and since, moreover, this operation can only be carried out from the outside of the duct, that is to say in the attic of the building, it becomes practically impossible if the attic is inaccessible.
  • This flexible conduit allows in particular to connect two openings, which can be distant for example from 0.80 m to 3 m and be practiced in planes making one with respect to the other an angle which can range from 0 to about 45 ° .
  • the flexible conduit according to the invention which can be used to connect two openings located in parallel planes or forming an acute angle with each other and in particular for channeling a light flux from one of the openings acting as a sensor for light towards the other opening acting as a light diffuser, is characterized in that it is formed of a flexible sheath, with a smooth wall, of a material capable of deforming elastically both in the longitudinal direction of the sheath and transversely, so that the wall of said sheath remains smooth, without having to cut or cut the sheath, when the straight sections at the ends of the stretched duct are in parallel planes or at an angle of up to 45 ° about.
  • the material constituting the sheath of the flexible conduit advantageously has an elastic elongation of at least 10% in the longitudinal direction of the sheath and of at least 5% transversely.
  • Said material can be chosen from the various known materials having the required elasticity characteristics indicated above as well as good resistance to aging.
  • the material constituting the sheath of the flexible conduit may consist of a complex membrane formed of a fabric, for example of the jersey type, coated, in particular by coating, on one side at the by means of an elastomer, for example of the polyurethane type, the fabric of the membrane constituting the external wall of the sheath and preferably having its weft in the longitudinal direction of said sheath.
  • the fabric and the elastomer constituting said complex membrane preferably have comparable performances of elastic elongation.
  • the internal wall of the sheath of the flexible conduit can be surfaced with a reflective material having elongation performance comparable to that of the sheath.
  • the internal wall of the sheath can carry, at least over part of its length, a system capable of preventing any loss of light, said system possibly consisting, for example, of a layer of glass beads forming a system reflector.
  • the sheath forming the flexible conduit can be associated with one or more rigid spacer rings having the desired shape, for example square or rectangular, and disposed between the two ends of the sheath, said ring or rings being either fixed, for example sewn, to the sheath outside of the latter is arranged inside the sheath so that said sheath is stretched over the inner ring or rings serving as a frame.
  • said rings are fixed to the latter so that there is a ring disposed at each end of the sheath and one or more rings arranged intermediate.
  • At least one of the ends of the sheath forming the flexible conduit carries a collar of a flexible or rigid material, which is fixed to said end of the sheath on the outer wall of the latter and which has on its periphery a male clipping profile surrounding said sheath, said profile can be in one piece or, if necessary, to facilitate its insertion into the housing which it will be associated with it, consisting of a plurality of male profile elements which may or may not be joined.
  • At least one of the ends of the sheath forming the flexible conduit has a frame-like frame that is both rigid and deformable so as to have the capacity to turn on itself, while retaining the shape of the sheath section, and make it possible to wind the sheath on this frame continuously.
  • a winding of the sheath on the frame-shaped frame allows the storage of the excess lengths of sheath before fixing the flexible conduit brought by winding to the length required for its use.
  • the aforementioned frame comprises a spiral spring, which has a length sufficient to go around the sheath and the ends of which are secured, said spiral spring being housed in a hem formed at the relevant end of the sheath and being traversed axially.
  • rectilinear stiffening elements for example tubular rectilinear elements, arranged one after the other in said spring so as to give the desired section at the end of the conduit while providing a portion of spiral spring free of 'stiffening element between any two successive stiffening elements.
  • rectilinear stiffening elements for example tubular rectilinear elements, arranged one after the other in said spring so as to give the desired section at the end of the conduit while providing a portion of spiral spring free of 'stiffening element between any two successive stiffening elements.
  • four straight non-contiguous straightening elements suitable for giving the spiral spring are inserted into the spiral spring, and therefore at the end of the flexible conduit carrying said spring, the desired rectangular or square configuration while providing at each corner of the rectangle or square thus formed a spiral spring part free of stiffening element, said part playing the role of universal joint.
  • the flexible conduit according to the invention can be used to connect two openings situated in parallel planes or forming an acute angle with each other, for example up to approximately 45 °, and in particular for channeling a luminous flux from one of the openings playing the role of light sensor towards the other opening playing the role of light diffuser.
  • said flexible duct can be used in a natural lighting system for a room in a building.
  • a natural lighting system is of the type comprising a light sensor element incorporated into the roof of the building, a light diffusing element arranged in the ceiling of the room to be lit and a flexible duct connected by one of its ends to the light sensor element and by its other end to the diffuser element, and it is characterized in that the flexible duct is formed of a flexible sheath with a smooth wall according to the invention as defined above.
  • connection of the ends of the sheath forming the flexible conduit respectively to the light-sensing element and to the light-diffusing element can be carried out simply by stapling each of said ends to a wooden frame of suitable shape forming part, according to the case, the light sensor element or the light diffusing element.
  • connection of the ends of the sheath forming the flexible conduit respectively to the light sensor element and to the light diffusing element by means of an attachment means provided at the end of the sheath and cooperating with an additional attachment member associated, as the case may be, with the light sensor element or with the light diffuser element.
  • the sheath forming the flexible conduit carries a spacer ring at its ends and possibly one or more intermediate spacer rings or else is fitted with a spiral spring frame at its ends
  • said duct is fixed on the one hand to the light sensor element by one of its rings or by the spiral spring frame cooperating with a first attachment member associated with the light sensor element, and on the other hand with the light diffusing element by the other of its extreme rings or by a ring intermediate or by the spiral spring frame cooperating with a second attachment member associated with said light-diffusing element, so that the wall of the sheath of said conduit located between said first and second attachment members is kept in tension sufficient to be smooth and ensure the subjection to the attachment members, of the rings or coils with spiral spring cooperating with said members.
  • the attachment member associated with the light sensor element and cooperating with the end ring or the corresponding spiral spring frame of the flexible conduit to ensure the connection of said conduit to said light sensor element may consist of an integral frame. of the light sensor element and having directed upwards a housing having a shape complementary to that of said ring or of the spiral spring frame and such that this ring or this frame is applied in this housing as a result of the setting in tension of the sheath forming the flexible conduit.
  • the attachment member associated with the light-diffusing element and cooperating with the extreme or intermediate ring or with the corresponding spiral-spring frame of the flexible conduit to ensure the connection of said conduit to said light-diffusing element may consist of a frame integral with the light diffusing element and having a housing directed downwards shape complementary to that of said ring or said frame and such that this ring or this frame is applied in this housing as a result of the tensioning of the sheath of the conduit.
  • the sheath forming the flexible conduit carries a spacer ring at each of its ends and one or more intermediate spacer rings, it is possible, between the light-diffusing element and the attachment member associated with it, to provide an annular space around the light-diffusing element, said space forming a reservoir for the part of the flexible duct, if it exists, situated below the ring maintained by the attachment member secured to the light-diffusing element.
  • the sheath forming the flexible conduit carries at at least one of its ends a collar externally having a protruding male profile of clipping surrounding said sheath, said profile being in one piece or being formed of a plurality of elements of non-contiguous male profiles
  • the connection of the end of the sheath to, as the case may be, the light-sensing element or the light-diffusing element is produced by clipping or embedding said male profile in an elastic slot formed in the inner lateral surface of a frame associated, as the case may be, with the light-sensing element or the light-diffusing element and having a shape complementary to the section of the sheath at the relevant end of the latter, the insertion of said male profile into the slot leading to an assembly of the profile to the frame by locking.
  • the flexible conduit 5 is formed of an extensible and retractable sheath 6, of a material capable of deforming elastically both in the longitudinal direction of the sheath and in the transverse direction, associated to a plurality of rigid spacer rings (7a to 7g) made of a sufficiently resistant material such as steel.
  • the spacer rings are independent of each other and surround the sheath by being fixed to the latter so that there is a ring (7a, 7b) disposed at each end of the sheath and one or more rings (7c to 7g ) arranged intermediately, said rings having in the present case a square shape but being able to have any other desired shape, for example rectangular, circular or even polygonal.
  • the attachment of the rings to the sheath is for example carried out by sewing said rings to the sheath.
  • the material constituting said sheath consists, in the present embodiment, of a complex or composite membrane having an elastic elongation of approximately 15% in the longitudinal direction of the sheath and concomitantly an elastic elongation of approximately 8% in the transverse direction sheath.
  • This complex membrane is made of a fabric, for example of the jersey type, coated by coating on one of its faces by means of an elastomer of polyurethane type, the fabric and the elastomer having comparable performances of elastic elongation corresponding substantially to those given above for the complex membrane.
  • the fabric of said membrane constitutes the outer wall of the sheath and has its weft in the longitudinal direction of said sheath.
  • a light sensor element 1 incorporated into the roof 2 of the building is connected, by means of a flexible conduit 5 as described with reference to FIG. 1, to a light diffusing element 3 arranged in the ceiling 4 of the room to be lit, the roof 2 making with the ceiling 4 an acute angle equal to approximately 30 °.
  • the light sensor element 1 consists for example of a glass tile 14 mounted in a square frame 15 fixed in known manner to the rafters 16 of the roof.
  • a first attachment member 8 consisting of a rigid metal frame whose internal edge carries a portion 17 bent upward so as to define a housing 10 turned upward and of complementary shape to that of the duct rings 5.
  • the light diffusing element 3 which can be of any known type, consists for example of a square porthole comprising a frame 18 incorporated in the ceiling 4 of the room to be lit and associated with a double window 19, which is mounted so watertight at the bottom of said chassis.
  • a second fastening member 9 consisting of a rigid metal frame, the internal edge of which carries a part 20 bent downwards so as to define a housing 11 turned downwards and of complementary shape. that of the rings of the conduit 5.
  • the frame 18 is arranged to define an annular space 12 forming a reservoir for the flexible conduit, the internal diameter of said space 12 being slightly lower than that of the flexible duct rings.
  • the flexible conduit 5 is connected on the one hand to the light sensor element 1 by its end ring 7a which is applied in the complementary housing 10 of the first attachment member 8 and on the other hand to the light diffusing element 3 by that of the rings other than the ring 7a, which makes it possible to put the sheath in sufficient tension so that its wall remains smooth, said ring, in this case intermediate ring 7f, being applied in the complementary housing 11 of the second member d 'hooking 9.
  • the tension of the sheath of the flexible conduit ensures the securing of the rings 7a and 7f to the fastening members 8 and 9 with which they cooperate respectively.
  • the non-stretched excess part 13 of the flexible conduit, which is between the rings 7f and 7b is received in the reservoir 12 provided for this purpose.
  • the assembly of the natural lighting system shown diagrammatically in FIG. 2 can be carried out as follows. First of all, the installation of the light sensor element 1, equipped with the fastening member 8, is carried out in the roof of the building as well as the mounting of the frame 18 of the light diffuser element 3, equipped with the organ hanging 9, in the ceiling 4 of the room to be lit. These operations being carried out, the flexible conduit 5 is then put in place. To do this, the extreme ring 7a of said conduit is first inserted in the complementary housing 10 of the first attachment member 8 associated with the sensor element. from light.
  • the flexible conduit thus laid has a stretched wall without wrinkles and therefore makes it possible to ensure optimal transmission of the light flux from the light sensor element to the light diffusing element, which the known systems did not allow. natural lighting with flexible duct.
  • the flexible pipe according to the invention prevents the entry of dust and insects into the lighting system.
  • the flexible conduit 5 shown in FIG. 3a in cutaway view is formed of an extensible and retractable sheath 6 with a smooth wall, made of a material identical to that constituting the sheath of the flexible conduit of FIG. 1, said sheath 6 having a cross section rectangular.
  • the sheath carries a hem 31 into which is inserted a spiral spring 32 having a length sufficient to surround the sheath and the ends of which are secured.
  • the spiral spring 32 is traversed axially by four straight stiffening elements such as 33a and 33b, for example four rigid tube segments, which are arranged one after the other in said spring so as to give the spring the shape of a rectangle while providing a part 34 of a spiral spring free of stiffening element between any two successive stiffening elements such as 33a and 33b, said part 34 playing the role of universal joint.
  • the assembly formed by the hem 31 in which is inserted the spiral spring 32 held in shape by the stiffeners such as 33a and 33b constitutes a frame having the shape of a rectangular frame which can rotate on itself, the four angles 34 of said frame, free of stiffening element, playing the role of universal joints.
  • Said frame can be used as a mandrel for winding the sheath, the rolled sheath can be deployed to the length required for use by rotating the frame in opposite directions.
  • the first hooking member 8 associated is eliminated.
  • the wooden frame 15 of the light sensor element 1 and the chassis 18 comprising the annular space 12 of the light diffusing element 3 is replaced by a chassis similar to the chassis 35 shown in FIG. 3b, the upper edges, respectively 36a to 36d, are equipped with semi-cylindrical housings, respectively 37a to 37d, having a shape complementary to that of the section of the frame comprising the hem 31 of the flexible conduit and turning their concavity downwards.
  • the flexible conduit 5, wound on its frame 31, is firstly connected to the light sensor element 1 by stapling of the upper end 38 of the sheath 6 constituting the conduit 5 to the frame 15 of said light sensor, then the necessary length of the sheath is deployed by rotation of the frame and then the cylindrical edges of the rectangular frame, on which the excess sheath part remains wound, in the semi-cylindrical housings 37a to 37d corresponding to the frame 35, operating in such a way that the sheath is put under sufficient tension so that its wall remains smooth.
  • the flexible conduit 5 shown in FIG. 4, in half-section through a longitudinal plane, is formed of an extensible and retractable sheath 6 with a smooth wall, made of a material identical to that constituting the sheath of the flexible conduit of FIG. 1 , said sheath having a square cross section and carrying at each of its ends, respectively 40a and 40b, a collar, respectively 41a and 41b, of a flexible material such as flexible PVC, which is sewn, by seams such as 42a and 42b respectively, to the extreme outer wall of the sheath 6.
  • a flexible material such as flexible PVC
  • Each of said collars 41a and 41b carries on its periphery, in the vicinity of the free end, respectively 40a and 40b, of the sheath 6, a male clipping profile, respectively 43a and 43b, surrounding said sheath, said profile being in one piece or else being incised at each of its angles to form four male profile elements contiguous or not.
  • the flexible conduit 5 is firstly connected to the light sensor element 1 by fitting the male section 43a, present at the end 40a of the sheath 6, in the complementary slot of the attachment frame 50a associated with said sensor. light 1.
  • the flexible conduit 5 is then connected to the light diffusing element by fitting the male section 43b, present at the end 40b of the sheath 6, into the complementary slot of the hanging frame 50b associated with said diffusing element. lumen 3, operating in such a way that the sheath is tensioned enough so that its wall remains smooth.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

1. Flexible conduit (5) for the lighting of a room of a building and intended to connect two openings located in planes which are parallel or make an acute angle with one another and to channel a luminous flux from one of the openings acting as light pickup toward the other opening acting as light diffuser, characterised in that it is formed by a smooth-walled flexible sheath (6) of a material which is elastically deformable in both the longitudinal direction of the sheath and transversely such that the wall of said sheath remains smooth without the need to shape or cut the sheath when the straight sections at the ends of the taut conduit are in planes which are parallel or form an angle of up to about 45 degrees.

Description

L'invention se rapporte à un conduit souple utilisable pour relier deux ouvertures et plus particulièrement pour canaliser un flux lumineux d'une ouverture captant la lumière vers une ouverture diffusant la lumière ainsi canalisée, lesdites ouvertures étant situées dans des plans parallèles ou faisant entre eux un angle aigu. Elle concerne également un système d'éclairement naturel d'une pièce d'un bâtiment utilisant ledit conduit pour canaliser la lumière.The invention relates to a flexible conduit usable for connecting two openings and more particularly for channeling a light flux from an opening capturing light towards an opening diffusing the light thus channeled, said openings being located in parallel planes or forming between them an acute angle. It also relates to a system for natural lighting of a room in a building using said duct to channel the light.

Pour apporter un éclairement naturel à certaines pièces d'un bâtiment, dont celles qui sont dépourvues de fenêtres sur l'extérieur, on fait quelquefois appel à un éclairage naturel capté sur la toiture du bâtiment. Cet éclairage obtenu à partir d'un élément capteur de lumière, notamment tuile de verre, lucarne ou dôme plastique, incorporé à la toiture du bâtiment, est le plus souvent canalisé par un conduit, dont la forme reprend celle de l'ouverture en toiture, jusqu'à une ouverture agencée en élément diffuseur de lumière et arrangée dans le plafond de la pièce à éclairer. La réalisation du conduit canalisant la lumière est mal aisée du fait de l'exiguité d'un tel conduit et bien souvent également de l'inacessibilité du comble séparant le plafond de la pièce à éclairer de la toiture du bâtiment. En outre, les parois du conduit réalisées en matériaux courants ont un rendement faible eu égard à la réflexion de la lumière et de ce fait une partie non négligeable de la lumière à canaliser est perdue lors de la traversée dudit conduit.To provide natural light to certain rooms in a building, including those that do not have windows on the outside, we sometimes use natural light captured on the roof of the building. This lighting obtained from a light sensor element, in particular glass tile, skylight or plastic dome, incorporated into the roof of the building, is most often channeled by a conduit, the shape of which takes that of the opening in the roof. , up to an opening arranged as a light diffusing element and arranged in the ceiling of the room to be lit. The realization of the conduit channeling the light is difficult because of the smallness of such a conduit and very often also of the inaccessibility of the roof space separating the ceiling from the room to be lit from the roof of the building. In addition, the walls of the conduit made of common materials have a low efficiency with regard to the reflection of light and therefore a non-negligible part of the light to be channeled is lost during the crossing of said conduit.

Pour remédier à ces difficultés, on a proposé, comme indiqué dans le brevet US-A-4 339 900, d'utiliser un conduit flexible cylindrique ou rectangulaire réalisé par enroulement d'un tissu réflectorisé sur un ressort spirale, ledit conduit ayant chacune de ses extrémités fixée, par cimentation ou à l'aide d'un collier de serrage, sur un fourreau solidaire, suivant le cas, de l'élément capteur de lumière ou de l'élément diffuseur de lumière.To overcome these difficulties, it has been proposed, as indicated in patent US-A-4 339 900, to use a flexible cylindrical or rectangular conduit produced by winding a reflectorized fabric on a spiral spring, said conduit each having its ends fixed, by cementing or using a clamp, on a sheath secured, as the case may be, to the light sensor element or the light diffusing element.

L'utilisation d'un tel conduit pour convoyer la lumière depuis l'élément capteur jusqu'à l'élément diffuseur présente encore certains inconvénients. Tout d'abord la flexibilité de ce conduit est contrainte par sa géométrie. Pour une section donnée de fil spirale, plus l'intervalle entre spires est important, plus souple est le conduit. Ensuite, les déformations du conduit précité se traduisent, à chaque angulation, par l'apparition, sur sa face intérieure, de plis ou rides généralement orientés selon des sections droites dudit conduit, lequel se met en accordéon. Ces plis constituent des obstacles au déplacement du flux lumineux à l'intérieur du conduit avec comme résultat une diminution substantielle du coefficient de transmission du flux lumineux par le conduit par suite de pertes de lumière par réflexion et diffraction au niveau des plis. De plus, l'assujettissement du conduit au fourreau associé à l'élément capteur ou diffuseur de lumière suppose que le fil du ressort spirale et le tissu enroulé sur le ressort soient rendus solidaires d'un cadre, ce qui n'est pas aisé à réaliser. Enfin il est malaisé de réaliser un tel assujettissement une fois les éléments du système en place et comme, en outre, cette opération ne peut être effectuée que de l'extérieur du conduit, c'est-à-dire dans les combles du bâtiment, elle devient pratiquement impossible si les combles sont inaccessibles.The use of such a conduit for conveying light from the sensor element to the diffuser element still has certain drawbacks. First of all, the flexibility of this conduit is constrained by its geometry. For a given section of spiral wire, the larger the interval between turns, the more flexible the conduit. Then, the deformations of the aforementioned conduit are reflected, at each angulation, by the appearance, on its inner face, of folds or wrinkles generally oriented along straight sections of said conduit, which is arranged in accordion. These folds constitute obstacles to the movement of the light flux inside the duct, with the result of a substantial reduction in the coefficient of transmission of the light flux through the duct as a result of light losses by reflection and diffraction at the folds. In addition, the securing of the conduit to the sheath associated with the sensor or light-diffusing element supposes that the wire of the spiral spring and the fabric wound on the spring are made integral with a frame, which is not easy to achieve. Finally, it is difficult to carry out such securing once the elements of the system are in place and since, moreover, this operation can only be carried out from the outside of the duct, that is to say in the attic of the building, it becomes practically impossible if the attic is inaccessible.

On a maintenant trouvé que l'on pouvait pallier ces inconvénients en faisant appel à un conduit souple rétractable et extensible, dont les déformations n'altèrent pas la paroi intérieure, laquelle reste toujours tendue et souple, et dont la fixation aux éléments capteur et diffuseur de lumière est réalisée simplement, y compris de l'intérieur du système une fois en place.We have now found that these drawbacks could be overcome by using a flexible retractable and extensible conduit, the deformations of which do not alter the inner wall, which always remains taut and flexible, and the attachment of which to the sensor and diffuser elements. of light is carried out simply, including from inside the system once in place.

Ce conduit souple permet notamment de relier deux ouvertures, qui peuvent être distantes par exemple de 0,80 m à 3 m et être pratiquées dans des plans faisant l'un par rapport à l'autre un angle pouvant aller de 0 à environ 45°. Pour les petites distances entre ces ouvertures, on prévoit suivant l'invention de ranger la partie non utile du conduit de manière que la paroi utile dudit conduit reste dans sa totalité tendue et lisse.This flexible conduit allows in particular to connect two openings, which can be distant for example from 0.80 m to 3 m and be practiced in planes making one with respect to the other an angle which can range from 0 to about 45 ° . For small distances between these openings, provision is made according to the invention to store the non-useful part of the conduit so that the useful wall of said conduit remains in its entirety taut and smooth.

Le conduit souple suivant l'invention, utilisable pour relier deux ouvertures situées dans des plans parallèles ou faisant l'un avec l'autre un angle aigu et en particulier pour canaliser un flux lumineux de l'une des ouvertures jouant le rôle de capteur de lumière vers l'autre ouverture jouant le rôle de diffuseur de lumière, se caractérise en ce qu'il est formé d'une gaine souple, à paroi lisse, en un matériau susceptible de se déformer élastiquement tant dans le sens longitudinal de la gaine que transversalement, de telle sorte que la paroi de ladite gaine reste lisse, sans avoir recours a une taille ou découpe de la gaine, lorsque les sections droites aux extrémités du conduit tendu sont dans des plans parallèles ou faisant un angle allant jusqu'à 45° environ.The flexible conduit according to the invention, which can be used to connect two openings located in parallel planes or forming an acute angle with each other and in particular for channeling a light flux from one of the openings acting as a sensor for light towards the other opening acting as a light diffuser, is characterized in that it is formed of a flexible sheath, with a smooth wall, of a material capable of deforming elastically both in the longitudinal direction of the sheath and transversely, so that the wall of said sheath remains smooth, without having to cut or cut the sheath, when the straight sections at the ends of the stretched duct are in parallel planes or at an angle of up to 45 ° about.

Le matériau constituant la gaine du conduit souple possède avantageusement un allongement élastique d'au moins 10 % dans le sens longitudinal de la gaine et d'au moins 5 % transversalement. Ledit matériau peut être choisi parmi les divers matériaux connus présentant les caractéristiques requises d'élasticité indiquées plus haut ainsi qu'une bonne résistance au vieillissement. En particulier, le matériau constituant la gaine du conduit souple peut consister en une membrane complexe formée d'un tissu, par exemple du type jersey, revêtu, notamment par enduction, sur une face au moyen d'un élastomère, par exemple du type polyuréthanne, le tissu de la membrane constituant la paroi externe de la gaine et présentant, de préférence, sa trame dans le sens longitudinal de ladite gaine. Lorsque le matériau constituant la gaine du conduit souple est constitué d'une membrane complexe formée comme indiqué ci-dessus, le tissu et l'élastomère constituant ladite membrane complexe ont de préférence des performances comparables d'allongement élastique.The material constituting the sheath of the flexible conduit advantageously has an elastic elongation of at least 10% in the longitudinal direction of the sheath and of at least 5% transversely. Said material can be chosen from the various known materials having the required elasticity characteristics indicated above as well as good resistance to aging. In particular, the material constituting the sheath of the flexible conduit may consist of a complex membrane formed of a fabric, for example of the jersey type, coated, in particular by coating, on one side at the by means of an elastomer, for example of the polyurethane type, the fabric of the membrane constituting the external wall of the sheath and preferably having its weft in the longitudinal direction of said sheath. When the material constituting the sheath of the flexible conduit consists of a complex membrane formed as indicated above, the fabric and the elastomer constituting said complex membrane preferably have comparable performances of elastic elongation.

Avantageusement la paroi interne de la gaine du conduit souple peut être surfacée avec une matière réfléchissante ayant des performances d'élongation comparables à celles de la gaine.Advantageously, the internal wall of the sheath of the flexible conduit can be surfaced with a reflective material having elongation performance comparable to that of the sheath.

De même, la paroi interne de la gaine peut porter, au moins sur une partie de sa longueur, un système susceptible d'éviter toute perte de lumière, ledit système pouvant consister, par exemple, en une couche de billes de verre formant un système catadioptre.Likewise, the internal wall of the sheath can carry, at least over part of its length, a system capable of preventing any loss of light, said system possibly consisting, for example, of a layer of glass beads forming a system reflector.

La gaine formant le conduit souple peut être asociée à un ou plusieurs anneaux entretoises rigides présentant la forme désirée, par exemple carrée ou rectangulaire, et disposés entre les deux extrémités de la gaine, ledit ou lesdits anneaux étant soit fixés, par exemple cousus, à la gaine à l'extérieur de cette dernière soit disposés à l'intérieur de la gaine de telle sorte que ladite gaine soit tendue sur le ou les anneaux intérieurs servant d'armature. En particulier lorsque des anneaux entretoises extérieurs sont associés à la gaine, lesdits anneaux sont fixés à cette dernière de telle sorte qu'il y ait un anneau disposé à chacune des extrémités de la gaine et un ou plusieurs anneaux disposés intermédiairement.The sheath forming the flexible conduit can be associated with one or more rigid spacer rings having the desired shape, for example square or rectangular, and disposed between the two ends of the sheath, said ring or rings being either fixed, for example sewn, to the sheath outside of the latter is arranged inside the sheath so that said sheath is stretched over the inner ring or rings serving as a frame. In particular when external spacer rings are associated with the sheath, said rings are fixed to the latter so that there is a ring disposed at each end of the sheath and one or more rings arranged intermediate.

Dans une forme de réalisation, au moins l'une des extrémités de la gaine formant le conduit souple porte un collier en un matériau souple ou rigide, qui est fixé à ladite extrémité de la gaine sur la paroi extérieure de cette dernière et qui présente sur sa périphérie un profilé male de clipsage entourant ladite gaine, ledit profilé pouvant être d'un seul tenant ou bien, si besoin est pour faciliter son insertion dans le logement qui lui sera associé, être constitué d'une pluralité d'éléments de profilé males jointifs ou non.In one embodiment, at least one of the ends of the sheath forming the flexible conduit carries a collar of a flexible or rigid material, which is fixed to said end of the sheath on the outer wall of the latter and which has on its periphery a male clipping profile surrounding said sheath, said profile can be in one piece or, if necessary, to facilitate its insertion into the housing which it will be associated with it, consisting of a plurality of male profile elements which may or may not be joined.

Dans une autre forme de réalisation, au moins l'une des extrémités de la gaine formant le conduit souple comporte une armature en forme de cadre à la fois rigide et déformable pour avoir la capacité de tourner sur lui-même, tout en conservant la forme de la section de la gaine, et rendre possible l'enroulement de la gaine sur ce cadre de façon continue. Un tel enroulement de la gaine sur l'armature en forme de cadre permet le stockage des longueurs excédentaires de gaine avant la fixation du conduit souple amené par enroulement à la longueur requise pour son utilisation. Avantageusement l'armature précitée comporte un ressort spiralé, qui présente une longueur suffisante pour faire le tour de la gaine et dont les extrémités sont solidarisées, ledit ressort spiralé étant logé dans un ourlet réalisé à l'extrémité concernée de la gaine et étant traversé axialement par des éléments raidisseurs rectilignes, par exemple des éléments rectilignes tubulaires, disposés à la suite l'un de l'autre dans ledit ressort de manière à donner la section désirée à l'extrémité du conduit tout en ménageant une partie de ressort spiralé exempte d'élément raidisseur entre deux éléments raidisseurs successifs quelconques. Par exemple, pour obtenir une armature de forme carrée ou rectangulaire à l'extrémité du conduit souple, on insère dans le ressort spiralé quatre éléments raidisseurs rectilignes non jointifs propres à donner au ressort spiralé, et par conséquent à l'extrémité du conduit souple portant ledit ressort, la configuration rectangulaire ou carrée désirée tout en ménageant à chaque coin du rectangle ou du carré ainsi formé une partie de ressort spiralé exempte d'élément raidisseur, ladite partie jouant le rôle de joint de cardan.In another embodiment, at least one of the ends of the sheath forming the flexible conduit has a frame-like frame that is both rigid and deformable so as to have the capacity to turn on itself, while retaining the shape of the sheath section, and make it possible to wind the sheath on this frame continuously. Such a winding of the sheath on the frame-shaped frame allows the storage of the excess lengths of sheath before fixing the flexible conduit brought by winding to the length required for its use. Advantageously, the aforementioned frame comprises a spiral spring, which has a length sufficient to go around the sheath and the ends of which are secured, said spiral spring being housed in a hem formed at the relevant end of the sheath and being traversed axially. by rectilinear stiffening elements, for example tubular rectilinear elements, arranged one after the other in said spring so as to give the desired section at the end of the conduit while providing a portion of spiral spring free of 'stiffening element between any two successive stiffening elements. For example, to obtain a square or rectangular reinforcement at the end of the flexible conduit, four straight non-contiguous straightening elements suitable for giving the spiral spring are inserted into the spiral spring, and therefore at the end of the flexible conduit carrying said spring, the desired rectangular or square configuration while providing at each corner of the rectangle or square thus formed a spiral spring part free of stiffening element, said part playing the role of universal joint.

Comme indiqué précédemment, le conduit souple suivant l'invention est utilisable pour relier deux ouvertures situées dans des plans parallèles ou faisant l'un avec l'autre un angle aigu, allant par exemple jusqu'à 45° environ, et en particulier pour canaliser un flux lumineux de l'une des ouvertures jouant le rôle de capteur de lumière vers l'autre ouverture jouant le rôle de diffuseur de lumière.As indicated above, the flexible conduit according to the invention can be used to connect two openings situated in parallel planes or forming an acute angle with each other, for example up to approximately 45 °, and in particular for channeling a luminous flux from one of the openings playing the role of light sensor towards the other opening playing the role of light diffuser.

En particulier, on peut utiliser ledit conduit souple dans un système d'éclairement naturel d'une pièce d'un bâtiment. Un tel système naturel d'éclairement est du type comportant un élément capteur de lumière incorporé à la toiture du bâtiment, un élément diffuseur de lumière arrangé dans le plafond de la pièce à éclairer et un conduit souple connecté par l'une de ses extrémités à l'élément capteur de lumière et par son autre extrémité à l'élément diffuseur, et il se caractérise en ce que le conduit souple est formé d'une gaine souple à paroi lisse selon l'invention telle que définie plus haut.In particular, said flexible duct can be used in a natural lighting system for a room in a building. Such a natural lighting system is of the type comprising a light sensor element incorporated into the roof of the building, a light diffusing element arranged in the ceiling of the room to be lit and a flexible duct connected by one of its ends to the light sensor element and by its other end to the diffuser element, and it is characterized in that the flexible duct is formed of a flexible sheath with a smooth wall according to the invention as defined above.

La connexion des extrémités de la gaine formant le conduit souple respectivement à l'élément capteur de lumière et à l'élément diffuseur de lumière peut être réalisée simplement par agrafage de chacune desdites extrémités sur un cadre en bois de forme appropriée faisant partie, selon le cas, de l'élément capteur de lumière ou de l'élément diffuseur de lumière.The connection of the ends of the sheath forming the flexible conduit respectively to the light-sensing element and to the light-diffusing element can be carried out simply by stapling each of said ends to a wooden frame of suitable shape forming part, according to the case, the light sensor element or the light diffusing element.

On peut encore réaliser la connexion des extrémités de la gaine formant le conduit souple respectivement à l'élément capteur de lumière et à l'élément diffuseur de lumière par le biais d'un moyen d'accrochage prévu à l'extrémité de la gaine et coopérant avec un organe complémentaire d'accrochage associé, selon le cas, à l'élément capteur de lumière ou à l'élément diffuseur de lumière. Lorsque la gaine formant le conduit souple porte un anneau entretoise à ses extrémités et éventuellement un ou plusieurs anneaux entretoises intermédiaires ou bien est équipée d'une armature à ressort spiralé à ses extrémités, ledit conduit est fixé d'une part à l'élément capteur de lumière par l'un de ses anneaux extrêmes ou par l'armature à ressort spiralé coopérant avec un premier organe d'accrochage associé à l'élément capteur de lumière, et d'autre part à l'élément diffuseur de lumière par l'autre de ses anneaux extrêmes ou par un anneau intermédiaire ou encore par l'armature à ressort spiralé coopérant avec un second organe d'accrochage associé audit élément diffuseur de lumière, de telle sorte que la paroi de la gaine dudit conduit située entre lesdits premier et second organes d'accrochage soit maintenue en tension suffisante pour être lisse et assurer l'assujettissement aux organes d'accrochage, des anneaux ou armatures à ressort spiralé coopérant avec lesdits organes. L'organe d'accrochage associé à l'élément capteur de lumière et coopérant avec l'anneau extrême ou l'armature à ressort spiralé correspondant du conduit souple pour assurer la connexion dudit conduit audit élément capteur de lumière, peut consister en un cadre solidaire de l'élément capteur de lumière et présentant dirigé vers le haut un logement ayant une forme complémentaire de celle dudit anneau ou de l'armature à ressort spiralé et telle que cet anneau ou cette armature s'applique dans ce logement par suite de la mise en tension de la gaine formant le conduit souple. De même, l'organe d'accrochage associé à l'élément diffuseur de lumière et coopérant avec l'anneau extrême ou intermédiaire ou avec l'armature à ressort spiralé correspondant du conduit souple pour assurer la connexion dudit conduit audit élément diffuseur de lumière, peut consister en un cadre solidaire de l'élément diffuseur de lumière et présentant dirigé vers le bas un logement de forme complémentaire de celle dudit anneau ou de ladite armature et telle que cet anneau ou cette armature s'applique dans ce logement par suite de la mise en tension de la gaine du conduit. Lorsque la gaine formant le conduit souple porte un anneau entretoise à chacune de ses extrémités et un ou plusieurs anneaux entretoises intermédiaires, on peut, entre l'élément diffuseur de lumière et l'organe d'accrochage qui lui est associé, ménager un espace annulaire autour de l'élément diffuseur de lumière, ledit espace formant réservoir pour la partie du conduit souple, si elle existe, située en-dessous de l'anneau maintenu par l'organe d'accrochage solidaire de l'élément diffuseur de lumière.It is also possible to make the connection of the ends of the sheath forming the flexible conduit respectively to the light sensor element and to the light diffusing element by means of an attachment means provided at the end of the sheath and cooperating with an additional attachment member associated, as the case may be, with the light sensor element or with the light diffuser element. When the sheath forming the flexible conduit carries a spacer ring at its ends and possibly one or more intermediate spacer rings or else is fitted with a spiral spring frame at its ends, said duct is fixed on the one hand to the light sensor element by one of its rings or by the spiral spring frame cooperating with a first attachment member associated with the light sensor element, and on the other hand with the light diffusing element by the other of its extreme rings or by a ring intermediate or by the spiral spring frame cooperating with a second attachment member associated with said light-diffusing element, so that the wall of the sheath of said conduit located between said first and second attachment members is kept in tension sufficient to be smooth and ensure the subjection to the attachment members, of the rings or coils with spiral spring cooperating with said members. The attachment member associated with the light sensor element and cooperating with the end ring or the corresponding spiral spring frame of the flexible conduit to ensure the connection of said conduit to said light sensor element, may consist of an integral frame. of the light sensor element and having directed upwards a housing having a shape complementary to that of said ring or of the spiral spring frame and such that this ring or this frame is applied in this housing as a result of the setting in tension of the sheath forming the flexible conduit. Likewise, the attachment member associated with the light-diffusing element and cooperating with the extreme or intermediate ring or with the corresponding spiral-spring frame of the flexible conduit to ensure the connection of said conduit to said light-diffusing element, may consist of a frame integral with the light diffusing element and having a housing directed downwards shape complementary to that of said ring or said frame and such that this ring or this frame is applied in this housing as a result of the tensioning of the sheath of the conduit. When the sheath forming the flexible conduit carries a spacer ring at each of its ends and one or more intermediate spacer rings, it is possible, between the light-diffusing element and the attachment member associated with it, to provide an annular space around the light-diffusing element, said space forming a reservoir for the part of the flexible duct, if it exists, situated below the ring maintained by the attachment member secured to the light-diffusing element.

Lorsque la gaine formant le conduit souple porte à l'une au moins de ses extrémités un collier présentant extérieurement un profilé male saillant de clipsage entourant ladite gaine, ledit profilé étant d'un seul tenant ou bien étant formé d'une pluralité d'éléments de profilé males non jointifs, la connexion de l'extrémité de la gaine à, selon le cas, l'élément capteur de lumière ou l'élément diffuseur de lumière est réalisée par clipsage ou encastrement dudit profilé male dans une fente élastique ménagée dans la surface latérale intérieure d'un cadre associé, selon le cas, à l'élément capteur de lumière ou à l'élément diffuseur de lumière et présentant une forme complémentaire de la section de la gaine à l'extrémité concernée de cette dernière, l'insertion dudit profilé male dans la fente conduisant à un assemblage du profilé au cadre par verrouillage.When the sheath forming the flexible conduit carries at at least one of its ends a collar externally having a protruding male profile of clipping surrounding said sheath, said profile being in one piece or being formed of a plurality of elements of non-contiguous male profiles, the connection of the end of the sheath to, as the case may be, the light-sensing element or the light-diffusing element is produced by clipping or embedding said male profile in an elastic slot formed in the inner lateral surface of a frame associated, as the case may be, with the light-sensing element or the light-diffusing element and having a shape complementary to the section of the sheath at the relevant end of the latter, the insertion of said male profile into the slot leading to an assembly of the profile to the frame by locking.

L'invention sera mieux comprise à la lecture de la description suivante de plusieurs de ses formes de réalisation illustrées par les figures du dessin annexé, sur lesquelles :

  • la figure 1 représente schématiquement un conduit souple selon l'invention comportant une gaine associée à des anneaux entretoises extérieurs à la gaine ;
  • - la figure 2 donne, en coupe, un schéma d'un système d'éclairement naturel d'une pièce d'un bâtiment utilisant le conduit souple de la figure 1 ;
  • -les figures 3a et 3b montrent respectivement une gaine équipée, à l'une de ses extrémités, d'une armature à ressort spiralé et un chassis utilisable pour l'accrochage de ladite gaine ;
  • - la figure 4 représente schématiquement une gaine sans anneau entretoise et pourvue à chacune de ses extrémités d'un collier présentant un profilé male de clipsage ; et
  • -la figure 5 représente schématiquement un système d'éclairement naturel d'une pièce d'un bâtiment utilisant le conduit souple selon la figure 4.
The invention will be better understood on reading the following description of several of its embodiments illustrated by the figures of the appended drawing, in which:
  • Figure 1 schematically shows a flexible conduit according to the invention comprising a sheath associated with spacer rings external to the sheath;
  • - Figure 2 gives, in section, a diagram of a natural lighting system of a room in a building using the flexible duct of Figure 1;
  • FIGS. 3a and 3b respectively show a sheath fitted, at one of its ends, with a spiral spring frame and a frame usable for hooking said sheath;
  • - Figure 4 shows schematically a sheath without spacer ring and provided at each of its ends with a collar having a male profile of clipping; and
  • FIG. 5 schematically represents a natural lighting system for a room in a building using the flexible duct according to FIG. 4.

En se référant à la figure 1, le conduit souple 5 suivant l'invention est formé d'une gaine 6 extensible et rétractable, en un matériau susceptible de se déformer élastiquement tant dans le sens longitudinal de la gaine que dans le sens transversal, associée à une pluralité d'anneaux entretoises rigides (7a à 7g) en un matériau suffisamment résistant tel qu'un acier. Les anneaux entretoises sont indépendants les uns des autres et entourent la gaine en étant fixés à cette dernière de manière qu'il y ait un anneau (7a, 7b) disposé à chacune des extrémités de la gaine et un ou plusieurs anneaux (7c à 7g) disposés intermédiairement, lesdits anneaux ayant dans le cas présent une forme carrée mais pouvant avoir toute autre forme désirée, par exemple rectangulaire, circulaire ou même polygonale. La fixation des anneaux à la gaine est par exemple réalisée en cousant lesdits anneaux à la gaine. Le matériau constituant ladite gaine consiste, dans la présente forme de réalisation, en une membrane complexe ou composite présentant un allongement élastique d'environ 15 % dans le sens longitudinal de la gaine et concomitamment un allongement élastique d'environ 8 % dans le sens transversal de la gaine. Cette membrane complexe est formée d'un tissu, par exemple du type jersey, revêtu par enduction sur l'une de ses faces au moyen d'un élastomère de type polyuréthanne, le tissu et l'élastomère ayant des performances comparables d'allongement élastique correspondant sensiblement à celles données ci-dessus pour la membrane complexe. Le tissu de ladite membrane constitue la paroi externe de la gaine et présente sa trame dans le sens longitudinal de ladite gaine.Referring to Figure 1, the flexible conduit 5 according to the invention is formed of an extensible and retractable sheath 6, of a material capable of deforming elastically both in the longitudinal direction of the sheath and in the transverse direction, associated to a plurality of rigid spacer rings (7a to 7g) made of a sufficiently resistant material such as steel. The spacer rings are independent of each other and surround the sheath by being fixed to the latter so that there is a ring (7a, 7b) disposed at each end of the sheath and one or more rings (7c to 7g ) arranged intermediately, said rings having in the present case a square shape but being able to have any other desired shape, for example rectangular, circular or even polygonal. The attachment of the rings to the sheath is for example carried out by sewing said rings to the sheath. The material constituting said sheath consists, in the present embodiment, of a complex or composite membrane having an elastic elongation of approximately 15% in the longitudinal direction of the sheath and concomitantly an elastic elongation of approximately 8% in the transverse direction sheath. This complex membrane is made of a fabric, for example of the jersey type, coated by coating on one of its faces by means of an elastomer of polyurethane type, the fabric and the elastomer having comparable performances of elastic elongation corresponding substantially to those given above for the complex membrane. The fabric of said membrane constitutes the outer wall of the sheath and has its weft in the longitudinal direction of said sheath.

Lorsqu'un tel conduit ou une portion d'un tel conduit est mis en tension entre ses deux anneaux extrêmes (7a, 7b) dans le cas du conduit ou entre un anneau extrême (7a) et un anneau intermédiaire (7f) dans le cas d'une portion dudit conduit, les déformations auxquelles est alors soumis le conduit n'altèrent pas sa paroi, qui reste lisse et tendue. Chacune des faces du conduit soumis aux déformations peut se déformer du fait de l'élasticité de la gaine en restant une surface sans ride.When such a duct or a portion of such a duct is tensioned between its two end rings (7a, 7b) in the case of the duct or between an end ring (7a) and an intermediate ring (7f) in the case of a portion of said duct, the deformations to which the duct is then subjected do not alter its wall, which remains smooth and taut. Each of the faces of the conduit subjected to deformation can deform due to the elasticity of the sheath, remaining a wrinkle-free surface.

Dans le système d'éclairement naturel d'une pièce d'un bâtiment, qui est schématisé sur la figure 2, un élément capteur de lumière 1 incorporé à la toiture 2 du bâtiment est relié, par l'intermédiaire d'un conduit souple 5 tel que décrit en référence à la figure 1, à un élément diffuseur de lumière 3 arrangé dans le plafond 4 de la pièce à éclairer, la toiture 2 faisant avec le plafond 4 un angle aigu égal à environ 30°. L'élément capteur de lumière 1 consiste par exemple en une tuile de verre 14 montée dans un cadre carré 15 fixé de manière connue aux chevrons 16 de la toiture. Sur la partie inférieure du cadre 15 est monté un premier organe d'accrochage 8 consistant en un cadre métallique rigide dont le bord interne porte une partie 17 recourbée vers le haut de manière à définir un logement 10 tourné vers le haut et de forme complémentaire de celle des anneaux du conduit 5.In the natural lighting system of a room in a building, which is shown diagrammatically in FIG. 2, a light sensor element 1 incorporated into the roof 2 of the building is connected, by means of a flexible conduit 5 as described with reference to FIG. 1, to a light diffusing element 3 arranged in the ceiling 4 of the room to be lit, the roof 2 making with the ceiling 4 an acute angle equal to approximately 30 °. The light sensor element 1 consists for example of a glass tile 14 mounted in a square frame 15 fixed in known manner to the rafters 16 of the roof. On the lower part of the frame 15 is mounted a first attachment member 8 consisting of a rigid metal frame whose internal edge carries a portion 17 bent upward so as to define a housing 10 turned upward and of complementary shape to that of the duct rings 5.

L'élément diffuseur de lumière 3, qui peut être de tout type connu, consiste par exemple en un hublot carré comportant un chassis 18 incorporé dans le plafond 4 de la pièce à éclairer et associé à une double vitre 19, qui est montée de manière étanche à la partie inférieure dudit chassis. A l'extrémité supérieure du chassis est monté un second organe d'accrochage 9 consistant en un cadre métallique rigide, dont le bord interne porte une partie 20 recourbée vers le bas de manière à définir un logement 11 tourné vers le bas et de forme complémentaire de celle des anneaux du conduit 5. En outre, entre l'organe d'accrochage 9 et la double vitre 19, le chassis 18 est arrangé pour définir un espace annulaire 12 formant réservoir pour le conduit souple, le diamètre intérieur dudit espace 12 étant légèrement inférieur à celui des anneaux du conduit souple.The light diffusing element 3, which can be of any known type, consists for example of a square porthole comprising a frame 18 incorporated in the ceiling 4 of the room to be lit and associated with a double window 19, which is mounted so watertight at the bottom of said chassis. At the upper end of the chassis is mounted a second fastening member 9 consisting of a rigid metal frame, the internal edge of which carries a part 20 bent downwards so as to define a housing 11 turned downwards and of complementary shape. that of the rings of the conduit 5. In addition, between the fastening member 9 and the double window 19, the frame 18 is arranged to define an annular space 12 forming a reservoir for the flexible conduit, the internal diameter of said space 12 being slightly lower than that of the flexible duct rings.

Le conduit souple 5 est connecté d'une part à l'élément capteur de lumière 1 par son anneau extrême 7a qui est appliqué dans le logement complémentaire 10 du premier organe d'accrochage 8 et d'autre part à l'élément diffuseur de lumière 3 par celui des anneaux autres que l'anneau 7a, qui permet de mettre la gaine en tension suffisante pour que sa paroi reste lisse, ledit anneau, dans le cas présent anneau 7f intermédiaire, étant appliqué dans le logement complémentaire 11 du second organe d'accrochage 9. La tension de la gaine du conduit souple assure l'assujettissement des anneaux 7a et 7f aux organes d'accrochages 8 et 9 avec lesquels ils coopèrent respectivement. La partie excédentaire 13 non tendue du conduit souple, qui est comprise entre les anneaux 7f et 7b est reçue dans le réservoir 12 prévu à cet effet.The flexible conduit 5 is connected on the one hand to the light sensor element 1 by its end ring 7a which is applied in the complementary housing 10 of the first attachment member 8 and on the other hand to the light diffusing element 3 by that of the rings other than the ring 7a, which makes it possible to put the sheath in sufficient tension so that its wall remains smooth, said ring, in this case intermediate ring 7f, being applied in the complementary housing 11 of the second member d 'hooking 9. The tension of the sheath of the flexible conduit ensures the securing of the rings 7a and 7f to the fastening members 8 and 9 with which they cooperate respectively. The non-stretched excess part 13 of the flexible conduit, which is between the rings 7f and 7b is received in the reservoir 12 provided for this purpose.

Le montage du système d'éclairement naturel représenté schématiquement sur la figure 2 peut être réalisé comme suit. On effectue tout d'abord la pose de l'élément capteur de lumière 1, équipé de l'organe d'accrochage 8, dans la toiture du bâtiment ainsi que le montage du chassis 18 de l'élément diffuseur de lumière 3, équipé de l'organe d'accrochage 9, dans le plafond 4 de la pièce à éclairer. Ces opérations étant réalisées, on met alors en place le conduit souple 5. Pour ce faire, on insère tout d'abord l'anneau extrême 7a dudit conduit dans le logement complémentaire 10 du premier organe d'accrochage 8 associé à l'élément capteur de lumière. En opérant à travers le chassis et depuis l'intérieur du conduit souple, on tire ensuite sur ledit conduit pour le tendre, sans aller cependant à la limite de ses capacités d'allongement, de manière à amener l'un des anneaux autres que 7a, dans le cas présent anneau 7f, au niveau du second organe d'accrochage 9 associé à l'élément diffuseur de lumière 3, puis on insère la partie dudit anneau 7f, du côté où le développement du conduit est le plus faible, dans la partie correspondante du logement complémentaire 11 dudit second organe d'accrochage et enfin on fait pivoter l'anneau 7f autour de son côté déjà fixé pour réaliser l'assujettissement du conduit souple 5 au second organe d'accrochage, l'extensibilité de la gaine du conduit souple autorisant cette opération. Le conduit souple étant en place, on monte alors la double vitre 19 à la partie inférieure du chassis 18.The assembly of the natural lighting system shown diagrammatically in FIG. 2 can be carried out as follows. First of all, the installation of the light sensor element 1, equipped with the fastening member 8, is carried out in the roof of the building as well as the mounting of the frame 18 of the light diffuser element 3, equipped with the organ hanging 9, in the ceiling 4 of the room to be lit. These operations being carried out, the flexible conduit 5 is then put in place. To do this, the extreme ring 7a of said conduit is first inserted in the complementary housing 10 of the first attachment member 8 associated with the sensor element. from light. By operating through the chassis and from inside the flexible conduit, one then pulls on said conduit to tension it, without however going to the limit of its elongation capacities, so as to bring one of the rings other than 7a , in the present case ring 7f, at the level of the second attachment member 9 associated with the light-diffusing element 3, then the part of said ring 7f is inserted, on the side where the development of the duct is the weakest, in the corresponding part of the complementary housing 11 of said second attachment member and finally the ring 7f is pivoted around its already fixed side to secure the flexible conduit 5 to the second attachment member, the extensibility of the sheath of the flexible conduit allowing this operation. The flexible conduit being in place, the double window 19 is then mounted to the lower part of the frame 18.

Le conduit souple ainsi posé présente une paroi tendue sans ride et permet donc d'assurer une transmission optimale du flux lumineux depuis l'élément capteur de lumière jusqu'à l'élément diffuseur de lumière, ce que ne permettaient pas les systèmes connus d'éclairement naturel à conduit flexible. De plus comme pour lesdits systèmes connus à conduit flexible, le conduit souple suivant l'invention prévient l'entrée des poussières et des insectes dans le système d'éclairement.The flexible conduit thus laid has a stretched wall without wrinkles and therefore makes it possible to ensure optimal transmission of the light flux from the light sensor element to the light diffusing element, which the known systems did not allow. natural lighting with flexible duct. In addition, as for said known flexible pipe systems, the flexible pipe according to the invention prevents the entry of dust and insects into the lighting system.

Le conduit souple 5 représenté sur la figure 3a en vue arrachée est formé d'une gaine 6 extensible et rétractable à paroi lisse, en un matériau identique à celui constituant la gaine du conduit souple de la figure 1, ladite gaine 6 ayant une section transversale rectangulaire. A l'une de ses extrémités, à savoir l'extrémité 30, la gaine porte un ourlet 31 dans lequel est inséré un ressort spiralé 32 ayant une longueur suffisante pour entourer la gaine et dont les extrémités sont solidarisées. Le ressort spiralé 32 est traversé axialement par quatre éléments raidisseurs rectilignes tels que 33a et 33b, par exemple quatre segments de tube rigides, qui sont disposés à la suite l'un de l'autre dans ledit ressort de manière à conférer au ressort la forme d'un rectangle tout en ménageant une partie 34 de ressort spiralé exempte d'élément raidisseur entre deux éléments raidisseurs successifs quelconques tels que 33a et 33b, ladite partie 34 jouant le rôle de joint de cardan. L'ensemble formé par l'ourlet 31 dans lequel est inséré le ressort spiralé 32 maintenu en forme par les raidisseurs tels que 33a et 33b constitue une armature ayant la forme d'un cadre rectangulaire qui peut tourner sur lui-même, les quatre angles 34 dudit cadre, exempts d'élément raidisseur, jouant le rôle de joints de cardan. Ledit cadre peut être utilisé comme mandrin pour enrouler la gaine, la gaine enroulée pouvant être déployée à la longueur requise pour l'utilisation par rotation du cadre en sens inverse.The flexible conduit 5 shown in FIG. 3a in cutaway view is formed of an extensible and retractable sheath 6 with a smooth wall, made of a material identical to that constituting the sheath of the flexible conduit of FIG. 1, said sheath 6 having a cross section rectangular. At one of its ends, namely the end 30, the sheath carries a hem 31 into which is inserted a spiral spring 32 having a length sufficient to surround the sheath and the ends of which are secured. The spiral spring 32 is traversed axially by four straight stiffening elements such as 33a and 33b, for example four rigid tube segments, which are arranged one after the other in said spring so as to give the spring the shape of a rectangle while providing a part 34 of a spiral spring free of stiffening element between any two successive stiffening elements such as 33a and 33b, said part 34 playing the role of universal joint. The assembly formed by the hem 31 in which is inserted the spiral spring 32 held in shape by the stiffeners such as 33a and 33b constitutes a frame having the shape of a rectangular frame which can rotate on itself, the four angles 34 of said frame, free of stiffening element, playing the role of universal joints. Said frame can be used as a mandrel for winding the sheath, the rolled sheath can be deployed to the length required for use by rotating the frame in opposite directions.

Pour réaliser un système d'éclairement naturel d'une pièce d'un bâtiment d'un type analogue à celui schématisé sur la figure 2, en utilisant le conduit souple représenté sur la figure 3a, on supprime le premier organe d'accrochage 8 associé au cadre en bois 15 de l'élément capteur de lumière 1 et l'on remplace le chassis 18 comportant l'espace annulaire 12 de l'élément diffuseur de lumière 3 par un chassis analogue au chassis 35 représenté sur la figure 3b, dont les bords supérieurs, respectivement 36a à 36d, sont équipés de logements hémicylindriques, respectivement 37a à 37d, ayant une forme complémentaire de celle de la section de l'armature comportant l'ourlet 31 du conduit souple et tournant leur concavité vers le bas. Le conduit souple 5, enroulé sur son armature 31, est tout d'abord connecté à l'élément capteur de lumière 1 par agrafage de l'extrémité haute 38 de la gaine 6 constituant le conduit 5 au cadre 15 dudit capteur de lumière, puis l'on déploie la longueur nécessaire de la gaine par rotation de l'armature et l'on engage alors les bords cylindriques de l'armature rectangulaire, sur laquelle la partie de gaine excédentaire reste enroulée, dans les logements hémicylindriques 37a à 37d correspondants du chassis 35, en opérant de telle sorte que la gaine soit mise en tension suffisante pour que sa paroi reste lisse.To produce a natural lighting system for a room in a building of a type similar to that shown diagrammatically in FIG. 2, using the flexible duct shown in FIG. 3a, the first hooking member 8 associated is eliminated. to the wooden frame 15 of the light sensor element 1 and the chassis 18 comprising the annular space 12 of the light diffusing element 3 is replaced by a chassis similar to the chassis 35 shown in FIG. 3b, the upper edges, respectively 36a to 36d, are equipped with semi-cylindrical housings, respectively 37a to 37d, having a shape complementary to that of the section of the frame comprising the hem 31 of the flexible conduit and turning their concavity downwards. The flexible conduit 5, wound on its frame 31, is firstly connected to the light sensor element 1 by stapling of the upper end 38 of the sheath 6 constituting the conduit 5 to the frame 15 of said light sensor, then the necessary length of the sheath is deployed by rotation of the frame and then the cylindrical edges of the rectangular frame, on which the excess sheath part remains wound, in the semi-cylindrical housings 37a to 37d corresponding to the frame 35, operating in such a way that the sheath is put under sufficient tension so that its wall remains smooth.

Le conduit souple 5 représenté sur la figure 4, en demi-coupe par un plan longitudinal, est formé, d'une gaine 6 extensible et rétractable à paroi lisse, en un matériau identique à celui constituant la gaine du conduit souple de la figure 1, ladite gaine ayant une section transversale carrée et portant à chacune de ses extrémités, respectivement 40a et 40b, un collier, respectivement 41a et 41b, en un matériau souple tel que PVC souple, qui est cousu, par des coutures telles que 42a et 42b respectivement, à la paroi externe extrême de la gaine 6. Chacun desdits colliers 41a et 41b porte sur sa périphérie, au voisinage de l'extrémité libre, respectivement 40a et 40b, de la gaine 6, un profilé male de clipsage, respectivement 43a et 43b, entourant ladite gaine, ledit profilé étant d'un seul tenant ou bien étant incisé à chacun de ses angles pour former quatre éléments de profilé males jointifs ou non.The flexible conduit 5 shown in FIG. 4, in half-section through a longitudinal plane, is formed of an extensible and retractable sheath 6 with a smooth wall, made of a material identical to that constituting the sheath of the flexible conduit of FIG. 1 , said sheath having a square cross section and carrying at each of its ends, respectively 40a and 40b, a collar, respectively 41a and 41b, of a flexible material such as flexible PVC, which is sewn, by seams such as 42a and 42b respectively, to the extreme outer wall of the sheath 6. Each of said collars 41a and 41b carries on its periphery, in the vicinity of the free end, respectively 40a and 40b, of the sheath 6, a male clipping profile, respectively 43a and 43b, surrounding said sheath, said profile being in one piece or else being incised at each of its angles to form four male profile elements contiguous or not.

Pour réaliser le système d'éclairement naturel d'une pièce d'un bâtiment schématisé sur la figure 5, dans lequel un élément capteur de lumière 1 réalisé comme décrit en liaison avec la figure 2 est relié à un élément diffuseur de lumière analogue à celui schématisé sur la figure 2, à l'aide d'un conduit souple 5 tel que représenté sur la figure 4, on remplace le premier organe d'accrochage 8 associé à l'élément capteur de lumière 1 ainsi que le chassis 18 de l'élément diffuseur de lumière 3 portant l'espace annulaire 12 et le second organe d'accrochage 9, par un cadre, respectivement 50a et 50b, de forme carrée dans la surface latérale intérieure duquel est ménagée une fente élastique présentant une configuration telle que le profilé male situé à l'extrémité correspondante de la gaine puisse s'y encastrer de manière à réaliser un assemblage du profilé au cadre portant la fente, ledite cadre étant en un matériau rigide tel que PVC rigide ou aluminium. Le conduit souple 5 est tout d'abord connecté à l'élément capteur de lumière 1 par encastrement du profilé male 43a, présent à l'extrémité 40a de la gaine 6, dans la fente complémentaire du cadre d'accrochage 50a associé audit capteur de lumière 1. On connecte ensuite le conduit souple 5 à l'élément diffuseur de lumière par encastrement du profilé male 43b, présent à l'extrémité 40b de la gaine 6, dans la fente complémentaire du cadre d'accrochage 50b associé audit élément diffuseur de lumière 3, en opérant de telle sorte que la gaine soit mise en tension suffisante pour que sa paroi reste lisse.To produce the natural lighting system for a room in a building shown diagrammatically in FIG. 5, in which a light sensor element 1 produced as described in connection with FIG. 2 is connected to a light diffusing element similar to that shown schematically in Figure 2, using a flexible conduit 5 as shown in Figure 4, we replace the first attachment member 8 associated with the light sensor element 1 and the frame 18 of the light-diffusing element 3 carrying the annular space 12 and the second attachment member 9, by a frame, respectively 50a and 50b, of square shape in the surface inner side of which is provided an elastic slot having a configuration such that the male profile located at the corresponding end of the sheath can be embedded therein so as to assemble the profile to the frame carrying the slot, the said frame being made of a material rigid such as rigid PVC or aluminum. The flexible conduit 5 is firstly connected to the light sensor element 1 by fitting the male section 43a, present at the end 40a of the sheath 6, in the complementary slot of the attachment frame 50a associated with said sensor. light 1. The flexible conduit 5 is then connected to the light diffusing element by fitting the male section 43b, present at the end 40b of the sheath 6, into the complementary slot of the hanging frame 50b associated with said diffusing element. lumen 3, operating in such a way that the sheath is tensioned enough so that its wall remains smooth.

Dans cette forme de réalisation, on pourrait encore opérer en utilisant un conduit souple 5 possédant un seul collier 41a à l'extrémité haute 40a de la gaine et en remplaçant le cadre 50b à fente par un cadre en bois, la connexion de l'extrémité 40b sans collier de la gaine à l'élément diffuseur de lumière 3 étant alors réalisée par agrafage en opérant toujours de manière à ce que la paroi de la gaine reste lisse.In this embodiment, one could also operate by using a flexible conduit 5 having a single collar 41a at the upper end 40a of the sheath and replacing the slot frame 50b with a wooden frame, the connection of the end 40b without collar of the sheath to the light-diffusing element 3 then being produced by stapling while still operating so that the wall of the sheath remains smooth.

Bien entendu, l'invention ne se limite pas aux formes de réalisation décrites et représentées, mais elle en englobe au contraire les diverses variantes, qui sont accessibles à l'homme de métier en restant dans le cadre de l'invention.Of course, the invention is not limited to the embodiments described and shown, but on the contrary encompasses the various variants thereof, which are accessible to those skilled in the art while remaining within the scope of the invention.

Claims (27)

1 - Conduit souple (5), utilisable pour relier deux ouvertures situées dans des plans parallèles ou faisant l'un avec l'autre un angle aigu et en particulier pour canaliser un flux lumineux de l'une des ouvertures jouant le rôle de capteur de lumière vers l'autre ouverture jouant le rôle de diffuseur de lumière, se caractérisant en ce qu'il est formé d'une gaine (6) souple, à paroi lisse, en un matériau susceptible de se déformer élastiquement tant dans le sens longitudinal de la gaine que transversalement de telle sorte que la paroi de ladite gaine reste lisse, sans avoir recours à une taille ou découpe de la gaine, lorsque les sections droites aux extrémités du conduit tendu sont dans des plans parallèles ou faisant un angle allant jusqu'à 45°environ.1 - Flexible duct (5), usable for connecting two openings located in parallel planes or forming an acute angle with each other and in particular for channeling a luminous flux from one of the openings acting as a sensor for light towards the other opening acting as a light diffuser, characterized in that it is formed of a flexible sheath (6), with smooth wall, in a material capable of deforming elastically both in the longitudinal direction of the sheath only transversely so that the wall of said sheath remains smooth, without having to cut or cut the sheath, when the straight sections at the ends of the stretched duct are in parallel planes or at an angle up to 45 ° approximately. 2 - Conduit souple selon la revendication 1, caractérisé en ce que le matériau constituant la gaine dudit conduit possède concomitamment un allongement élastique d'au moins 10 % dans le sens longitudinal de la gaine et d'au moins 5 % transversalement.2 - flexible conduit according to claim 1, characterized in that the material constituting the sheath of said conduit concomitantly has an elastic elongation of at least 10% in the longitudinal direction of the sheath and at least 5% transversely. 3 - Conduit souple selon la revendication 1 ou 2, caractérisé en ce que le matériau constituant la gaine dudit conduit est une membrane complexe formée d'un tissu enduit sur une face au moyen d'un élastomère, le tissu de la membrane constituant la paroi externe de la gaine et présentant, de préférence, sa trame dans le sens longitudinal de ladite gaine.3 - flexible conduit according to claim 1 or 2, characterized in that the material constituting the sheath of said conduit is a complex membrane formed of a fabric coated on one side by means of an elastomer, the fabric of the membrane constituting the wall external of the sheath and preferably having its frame in the longitudinal direction of said sheath. 4 - Conduit souple selon la revendication 3, caractérisé en ce que le tissu et l'élastomère, qui constituent la membrane complexe formant la gaine dudit conduit, ont des performances comparables d'allongement élastique.4 - Flexible conduit according to claim 3, characterized in that the fabric and the elastomer, which constitute the complex membrane forming the sheath of said conduit, have comparable performances of elastic elongation. 5- Conduit souple selon l'une des revendications 1 à 4, caractérisé en ce que la paroi interne de la gaine dudit conduit est surfacée avec une matière réfléchissante ayant des performances d'élongation comparables à celles de la gaine.5- flexible conduit according to one of claims 1 to 4, characterized in that the inner wall of the sheath of said conduit is surfaced with a reflective material having elongation performance comparable to that of the sheath. 6 - Conduit souple selon l'une des revendications 1 à 5, caractérisé en ce que la paroi interne de la gaine porte, au moins sur une partie de sa longueur, un système susceptible d'éviter toute perte de lumière, ledit système étant constitué, par exemple, d'une couche de billes de verre formant un système catadioptre.6 - flexible duct according to one of claims 1 to 5, characterized in that the internal wall of the sheath carries, at least over part of its length, a system capable of preventing any loss of light, said system being constituted , for example, a layer of glass beads forming a reflector system. 7 - Conduit souple selon l'une des revendications 1 à 6, caractérisé en ce que la gaine (6) est associée à un ou plusieurs anneaux entretoises rigides (7c à 7g) indépendants les uns des autres et disposés entre les deux extrémités de la gaine, le ou lesdits anneaux étant soit fixés à la gaine à l'extérieur de cette dernière (7c à 7g) soit disposés à l'intérieur de la gaine de manière à sous-tendre ladite gaine sans être solidarisés à celle-ci.7 - flexible conduit according to one of claims 1 to 6, characterized in that the sheath (6) is associated with one or more rigid spacer rings (7c to 7g) independent of each other and arranged between the two ends of the sheath, the said ring or rings being either fixed to the sheath outside of the latter (7c to 7g) or arranged inside the sheath so as to underpin said sheath without being integral with it. 8 - Conduit souple selon la revendication 7, caractérisé en ce que la gaine est associée à des éléments entretoises fixés à la gaine (6) à l'extérieur de cette dernière de telle sorte qu'il y ait un anneau (7a, 7b) disposé à l'une au moins des extrémités de la gaine et un ou plusieurs anneaux (7c à 7g) disposés intermédiairement.8 - flexible conduit according to claim 7, characterized in that the sheath is associated with spacer elements fixed to the sheath (6) outside of the latter so that there is a ring (7a, 7b) arranged at at least one of the ends of the sheath and one or more rings (7c to 7g) arranged intermediately. 9 - Conduit souple selon l'une des revendications 1 à 8, caractérisé en ce qu'au moins l'une des extrémités de la gaine (6) formant ledit conduit porte un collier (41a, 41b) en un matériau souple ou rigide, qui est fixé à ladite extrémité de la gaine sur la paroi externe de cette dernière et qui présente à sa périphérie un profilé male de clipsage (43a, 43b) entourant ladite gaine, ledit profilé étant d'un seul tenant ou bien étant constitué d'une pluralité d'éléments de profilé males de clipsage jointifs ou non.9 - Flexible duct according to one of claims 1 to 8, characterized in that at least one of the ends of the sheath (6) forming said duct carries a collar (41a, 41b) made of a flexible or rigid material, which is fixed to said end of the sheath on the external wall of the latter and which has at its periphery a male clipping profile (43a, 43b) surrounding said sheath, said profile being in one piece or else consisting of a plurality of male profile elements of clipping whether joined or not. 10 - Conduit souple selon l'une des revendications 1 à 9, caractérisé en ce qu'au moins l'une des extrémités de la gaine (6) formant ledit conduit comporte une armature en forme de cadre (31) à la fois rigide et déformable pour avoir la capacité de tourner sur lui-même, tout en conservant la forme de la section de la gaine.10 - flexible conduit according to one of claims 1 to 9, characterized in that at least one of the ends of the sheath (6) forming said conduit comprises a frame-shaped frame (31) both rigid and deformable to have the ability to turn on itself, while retaining the shape of the sheath section. 11 - Conduit souple selon la revendication 10, caractérisé en ce que ladite armature comporte un ressort spiralé (32), qui présente une longueur suffisante pour faire le tour de la gaine et dont les extrémités sont solidarisées, ledit ressort étant logé dans un ourlet (31) réalisé à l'extrémité concernée (30) de la gaine (6) et étant traversé axialement par des éléments raidisseurs rectilignes (33a, 33b) disposés à la suite l'un de l'autre dans ledit ressort de manière à donner la section désirée, par exemple carrée ou rectangulaire, à l'extrémité (30) du conduit, tout en ménageant une partie (34) de ressort spiralé exempte d'élément raidisseur entre deux éléments raidisseurs successifs (33a, 33b) quelconques.11 - Flexible conduit according to claim 10, characterized in that said frame comprises a spiral spring (32), which has a sufficient length to go around the sheath and whose ends are secured, said spring being housed in a hem ( 31) produced at the end concerned (30) of the sheath (6) and being traversed axially by rectilinear stiffening elements (33a, 33b) arranged one after the other in said spring so as to give the desired section, for example square or rectangular, at the end (30) of the duct, while providing a portion (34) of spiral spring free of stiffening element between any two successive stiffening elements (33a, 33b). 12 - Système d'éclairement naturel d'une pièce d'un bâtiment, comportant un élément (1) capteur de lumière incorporé à la toiture (2) du bâtiment, un élément (3) diffuseur de lumière arrangé dans le plafond (4) de la pièce à éclairer et un conduit souple (5) connecté par l'une de ses extrémités à l'élément capteur de lumière et par son autre extrémité à l'élément diffuseur, caractérisé en ce que le conduit souple (5) consiste en une gaine (6) souple, à paroi lisse, en un matériau susceptible de se déformer élastiquement tant dans le sens longitudinal de la gaine que transversalement de telle sorte quela paroi de ladite gaine reste lisse, sans avoir recours à une taille ou découpe de la gaine, lorsque les sections droites aux extrémités du conduit tendu sont dans des plans parallèles ou faisant un angle allant jusqu'à 45°environ, ledit conduit étant en tension entre lesdits éléments capteur de lumière (1) et diffuseur de lumière (3).12 - Natural lighting system of a room in a building, comprising an element (1) light sensor incorporated into the roof (2) of the building, an element (3) light diffuser arranged in the ceiling (4) of the room to be lit and a flexible conduit (5) connected by one of its ends to the light sensor element and by its other end to the diffuser element, characterized in that the flexible conduit (5) consists of a flexible sheath (6), with smooth wall, made of a material capable of deforming elastically both in the longitudinal direction of the sheath and transversely so that the wall of said sheath remains smooth, without having to cut or cut the sheath, when the straight sections at the ends of the stretched conduit are in parallel planes or at an angle of up to approximately 45 °, said conduit being in tension between said light sensor (1) and light diffuser (3) elements. 13 - Système d'éclairement selon la revendication 12, caractérisé en ce que le matériau constituant la gaine du conduit souple possède un allongement élastique d'au moins 10 % dans le sens longitudinal de la gaine et d'au moins 5 % transversalement.13 - Lighting system according to claim 12, characterized in that the material constituting the sheath of the flexible conduit has an elastic elongation of at least 10% in the longitudinal direction of the sheath and of at least 5% transversely. 14 - Système d'éclairement selon la revendication 12 ou 13, caractérisé en ce que le matériau constituant la gaine du conduit souple est une membrane complexe formée d'un tissu enduit sur une face au moyen d'un élastomère, le tissu de la membrane constituant la paroi externe de la gaine et présentant, de préférence, sa trame dans le sens longitudinal de ladite gaine.14 - Lighting system according to claim 12 or 13, characterized in that the material constituting the sheath of the flexible conduit is a complex membrane formed of a fabric coated on one side with an elastomer, the fabric of the membrane constituting the outer wall of the sheath and preferably having its frame in the longitudinal direction of said sheath. 15 - Système d'éclairement selon la revendication 14, caractérisé en ce que le tissu et l'élastomère, qui constituent la membrane complexe formant la gaine du conduit souple, ont des performances comparables d'allongement élastique.15 - Illumination system according to claim 14, characterized in that the fabric and the elastomer, which constitute the complex membrane forming the sheath of the flexible conduit, have comparable performances of elastic elongation. 16 - Système d'éclairement selon l'une des revendications 12 à 15 caractérisé en ce que la paroi interne de la gaine du conduit souple est surfacée avec une matière réfléchissante ayant des performances d'élongation comparables à celles de la gaine.16 - Lighting system according to one of claims 12 to 15 characterized in that the internal wall of the sheath of the flexible conduit is surfaced with a reflective material having elongation performance comparable to that of the sheath. 17 - Système d'éclairement selon l'une des revendications 12 à 16, caractérisé en ce que la paroi interne de la gaine du conduit souple porte, au moins sur une partie de sa longueur, un système susceptible d'éviter toute perte de lumière, ledit système étant, par exemple, constitué d'une couche de billes de verre formant un système catadioptre.17 - Lighting system according to one of claims 12 to 16, characterized in that the internal wall of the sheath of the flexible conduit carries, at least over part of its length, a system capable of avoiding any loss of light , said system being, for example, constituted by a layer of glass beads forming a reflector system. 18 - Système d'éclairement selon l'une des revendications 12 à 17, caractérisé en ce que la connexion d'au moins l'une des extrémités de la gaine (6) du conduit souple (5) à l'élément capteur de lumière (1) ou à l'élément diffuseur de lumière (3) est réalisée par agrafage de ladite extrémité sur un cadre approprié faisant partie de l'élément capteur de lumière (1) ou de l'élément diffuseur de lumière (3).18 - Lighting system according to one of claims 12 to 17, characterized in that the connection of at least one of the ends of the sheath (6) of the flexible conduit (5) to the light sensor element (1) or to the light diffusing element (3) is produced by stapling said end to a suitable frame forming part of the light sensing element (1) or of the light diffusing element (3). 19 - Système d'éclairement selon l'une des revendications 12 à 18, caractérisé en ce que la connexion d'au moins l'une des extrémités de la gaine (6) du conduit souple (5) à l'élément capteur de lumière (1) ou à l'élément diffuseur de lumière (3) est réalisée par le biais d'un moyen d'accrochage prévu à l'extrémité de la gaine (6) et coopérant avec un organe complémentaire d'accrochage associé, selon le cas, à l'élément capteur de lumière (1) ou à l'élément diffuseur de lumière (3).19 - Lighting system according to one of claims 12 to 18, characterized in that the connection of at least one of the ends of the sheath (6) of the flexible conduit (5) to the light sensor element (1) or to the light-diffusing element (3) is produced by means of an attachment means provided at the end of the sheath (6) and cooperating with an associated additional attachment member, depending on the case, the light sensor element (1) or the light diffuser element (3). 20 - Système d'éclairement selon l'une des revendications 12 à 19, caractérisé en ce que la gaine (6) est associée à un ou plusieurs anneaux entretoises rigides (7c à 7g) indépendants les uns des autres et disposés entre les deux extrémités de la gaine, le ou lesdits anneaux étant soit fixés à la gaine à l'extérieur de cette dernière (7c à 7g) soit disposés à l'intérieur de la gaine de manière à sous-tendre ladite gaine sans être solidarisés à celle-ci.20 - Lighting system according to one of claims 12 to 19, characterized in that the sheath (6) is associated with one or more rigid spacer rings (7c to 7g) independent of each other and arranged between the two ends of the sheath, the said ring or rings being either fixed to the sheath on the outside of the latter (7c to 7g) or arranged inside the sheath so as to underpin said sheath without being integral with it . 21 - Système d'éclairement selon la revendication 19, caractérisé en ce que la gaine (6) porte un anneau entretoise (7a, 7b) à au moins l'une des ses extrémités et éventuellement un ou plusieurs anneaux entretoises intermédiaires (7c à 7g), ledit anneau extrême (7a, 7b) ou l'un des anneaux intermédiaires (7f) constituant le moyen d'accrochage prévu à l'extrémité de la gaine (6) et coopérant avec l'organe d'accrochage associé au capteur de lumière (1) ou au diffuseur de lumière (3) pour réaliser la connexion du conduit (5) auxdits éléments capteur de lumière (1) et diffuseur de lumière (3).21 - Lighting system according to claim 19, characterized in that the sheath (6) carries a spacer ring (7a, 7b) at at least one of its ends and possibly one or more intermediate spacer rings (7c to 7g ), said end ring (7a, 7b) or one of the intermediate rings (7f) constituting the attachment means provided at the end of the sheath (6) and cooperating with the attachment member associated with the light sensor (1) or the light diffuser (3) to connect the conduit (5) to said light sensor elements (1) and light diffuser (3). 22 - Système d'éclairement selon la revendication 21, caractérisé en ce que l'organe d'accrochage (8) associé à l'élément capteur de lumière (1) et coopérant avec l'anneaux extrême (7a) correspondant du conduit souple (5) pour assurer la connexion dudit conduit audit élément capteur de lumière, consiste en un cadre solidaire de l'élément capteur de lumière et présentant dirigé vers le haut un logement (10) ayant une forme complémentaire de celle dudit anneau et telle que cet anneau s'applique dans ce logement par suite de la mise en tension de la gaine du conduit souple.22 - Lighting system according to claim 21, characterized in that the fastening member (8) associated with the light sensor element (1) and cooperating with the corresponding end ring (7a) of the flexible conduit ( 5) to ensure the connection of said conduit to said light sensor element, consists of a frame integral with the light sensor element and having directed upwards a housing (10) having a shape complementary to that of said ring and such that this ring applies in this housing as a result of the tensioning of the sheath of the flexible conduit. 23 - Système d'éclairement selon la revendication 21 ou 22, caractérisé en ce que l'organe d'accrochage (9) associé à l'élément (3) diffuseur de lumière et coopérant avec l'anneau extrême (7b) ou intermédiaire (7f) correspondant du conduit souple (5) pour assurer la connexion dudit conduit audit élément diffuseur de lumière, consiste en un cadre solidaire de l'élément diffuseur de lumière et présentant dirigé vers le bas un logement (11) ayant une forme complémentaire de celle dudit anneau et telle que cet anneau s'applique dans ce logement par suite de la mise en tension de la gaine du conduit souple.23 - Lighting system according to claim 21 or 22, characterized in that the fastening member (9) associated with the element (3) light diffuser and cooperating with the extreme ring (7b) or intermediate ( 7f) corresponding to the flexible conduit (5) for ensuring the connection of said conduit to said light diffusing element, consists of a frame integral with the light diffusing element and having directed downwards a housing (11) having a shape complementary to that of said ring and such that this ring is applied in this housing as a result of the tensioning of the sheath of the flexible conduit. 24 - Système d'éclairement selon l'une des revendications 21 à 23, caractérisé en ce qu'entre l'élément diffuseur de lumière (3) et l'organe d'accrochage (9) qui lui est associé, est ménagé un espace annulaire (12) autour de l'élement diffuseur de lumière, ledit espace formant réservoir pour la partie (13) du conduit souple (5), si elle existe, située en-dessous de l'anneau (7f) maintenu par l'organe d'accrochage (9) solidaire de l'élément (3) diffuseur de lumière.24 - Lighting system according to one of claims 21 to 23, characterized in that between the light diffusing element (3) and the attachment member (9) which is associated with it, a space is provided annular (12) around the light-diffusing element, said space forming a reservoir for the part (13) of the flexible conduit (5), if it exists, situated below the ring (7f) held by the fastening member (9) integral with the light diffusing element (3). 25 - Système d'éclairement selon la revendication 19 ou 20, caractérisé en ce qu'au moins l'une des extrémités de la gaine (6) porte un collier (41a, 41b) en un matériau souple ou rigide, qui est fixé à ladite extrémité de la gaine sur la paroi externe de cette dernière et qui présente à sa périphérie un profilé male de clipsage (43a, 43b) entourant ladite gaine, ledit profilé étant d'un seul tenant ou bien étant constitué d'une pluralité d'éléments de profilé males de clipsage jointifs ou non, ce profilé formant le moyen d'accrochage dont est pourvue ladite extrémité de la gaine et en ce que l'organe d'accrochage associé au capteur de lumière (1) ou au diffuseur de lumière (3) et coopérant avec ledit moyen d'accrochage pour réaliser la connexion du conduit (5) auxdits éléments capteur de lumière et diffuseur de lumière consiste en un cadre (50a, 50b) qui présente une forme complémentaire de la section de la gaine (6) à l'extrémité concernée de cette dernière et dans la surface latérale interne duquel est ménagée une fente élastique dans laquelle le profilé male s'insère pour réaliser un assemblage du profilé (43a, 43b) au cadre (50a, 50b).25 - Lighting system according to claim 19 or 20, characterized in that at least one of the ends of the sheath (6) carries a collar (41a, 41b) of a flexible or rigid material, which is fixed to said end of the sheath on the external wall of the latter and which has at its periphery a male clipping profile (43a, 43b) surrounding said sheath, said profile being in one piece or consisting of a plurality of male profile elements of clipping whether joined or not, this profile forming the attachment means which is provided with said end of the sheath and in that the attachment member associated with the light sensor (1) or with the light diffuser ( 3) and cooperating with said attachment means for making the connection of the conduit (5) to said light sensor and light diffuser elements consists of a frame (50a, 50b) which has a shape complementary to the section of the sheath (6 ) at the relevant end of the latter and in the lateral surface e internal of which an elastic slot is formed in which the male section is inserted in order to assemble the section (43a, 43b) to the frame (50a, 50b). 26 - Système d'éclairement selon la revendication 19 ou 20, caractérisé en ce qu'au moins l'une des extrémités de la gaine (6) comporte une armature en forme de cadre (31) à la fois rigide et déformable pour avoir la capacité de tourner sur lui-même tout en conservant la forme de la section de la gaine, ladite armature formant le moyen d'accrochage dont est pourvue l'extrémité concernée de la gaine et en ce que l'organe d'accrochage associé au capteur de lumière (1) ou au diffuseur de lumière (3) et coopérant avec ledit moyen d'accrochage pour réaliser la connexion du conduit (5) auxdits capteur et diffuseur de lumière consiste en un cadre (35) dont les bords (36a à 36d) comportent un logement (37a à 37d). ayant une forme complémentaire de celle de l'armature et telle que cette armature s'applique dans ce logement par suite de la mise en tension de la gaine (6) du conduit (5) lorsque la connexion est réalisée.26 - Lighting system according to claim 19 or 20, characterized in that at least one of the ends of the sheath (6) has a frame-shaped frame (31) that is both rigid and deformable to have the ability to turn on itself while maintaining the shape of the section of the sheath, said armature forming the attachment means which is provided with the relevant end of the sheath and in that the attachment member associated with the light sensor (1) or the light diffuser ( 3) and cooperating with said attachment means for making the connection of the conduit (5) to said sensor and light diffuser consists of a frame (35) whose edges (36a to 36d) include a housing (37a to 37d). having a shape complementary to that of the frame and such that this frame is applied in this housing as a result of the tensioning of the sheath (6) of the conduit (5) when the connection is made. 27 - Système d'éclairement selon la revendication 26, caractérisé en ce que ladite armature comporte un ressort spiralé (32), qui présente une longueur suffisante pour faire le tour de la gaine et dont les extrémités sont solidarisées, ledit ressort étant logé dans un ourlet (31) réalisé à l'extrémité concernée (30) de la gaine et étant traversé axialement par des éléments raidisseurs rectilignes (33a, 33b) disposés à la suite l'un de l'autre dans ledit ressort de manière à donner la configuration désirée, par exemple carrée ou rectangulaire, à l'extrémité (30) du conduit tout en ménageant une partie (34) de ressort spiralé exempte d'élément raidisseur entre deux éléments raidisseurs successifs (33a, 33b) quelconques.27 - Lighting system according to claim 26, characterized in that said frame comprises a spiral spring (32), which has a length sufficient to go around the sheath and whose ends are secured, said spring being housed in a hem (31) produced at the relevant end (30) of the sheath and being traversed axially by rectilinear stiffening elements (33a, 33b) arranged one after the other in said spring so as to give the configuration desired, for example square or rectangular, at the end (30) of the duct while providing a part (34) of spiral spring free of stiffening element between any two successive stiffening elements (33a, 33b).
EP88402638A 1987-10-19 1988-10-19 Flexible shaft for use to join two openings, and particularly to canalize a luminous flux from a light catching opening to a light spreading opening, and building-room natural lighting system using said flexible shaft Expired - Lifetime EP0313461B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88402638T ATE57561T1 (en) 1987-10-19 1988-10-19 FLEXIBLE PIPE FOR CONNECTING TWO OPENINGS AND IN PARTICULAR FOR CHANNELING A LIGHT FLOW FROM A LIGHT-RECEIVING OPENING TOWARDS A LIGHT-emitting OPENING AND PROCESSING NATURAL LIGHTING OF A ROOM IN A BUILDING BY USING THIS FLEXIBLE PIPE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8714365 1987-10-19
FR8714365A FR2621940A1 (en) 1987-10-19 1987-10-19 FLEXIBLE CONDUIT USEFUL FOR CONNECTING TWO OPENINGS AND ESPECIALLY FOR PIPING A BRIGHT FLOW FROM A LIGHT-CAPTURING OPENING TO A LIGHT-EMERGING OPENING AND A NATURAL LIGHTING SYSTEM OF A BUILDING PART USING SUCH A SOFT CONDUIT

Publications (2)

Publication Number Publication Date
EP0313461A1 true EP0313461A1 (en) 1989-04-26
EP0313461B1 EP0313461B1 (en) 1990-10-17

Family

ID=9355924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88402638A Expired - Lifetime EP0313461B1 (en) 1987-10-19 1988-10-19 Flexible shaft for use to join two openings, and particularly to canalize a luminous flux from a light catching opening to a light spreading opening, and building-room natural lighting system using said flexible shaft

Country Status (4)

Country Link
EP (1) EP0313461B1 (en)
AT (1) ATE57561T1 (en)
DE (1) DE3860830D1 (en)
FR (1) FR2621940A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU624750B2 (en) * 1989-11-17 1992-06-18 Skydome Industries Limited Skylight system
AU654822B2 (en) * 1990-08-24 1994-11-24 Abey Australia Pty Ltd Improvements in skylights
GB2374111A (en) * 2001-03-20 2002-10-09 Monodraught Ltd Diffuser apparatus for internally reflective light pipe
WO2005068744A1 (en) * 2004-01-09 2005-07-28 Vkr Holding A/S Skylight with displacement absorber and interlocking telescoping tubes
WO2005100871A1 (en) * 2004-04-19 2005-10-27 Vkr Holding A/S Roof light system comprising optional elements and interchangeable parts
GB2425134A (en) * 2005-04-14 2006-10-18 Monodraught Ltd Diffuser arrangement
EP1536079A3 (en) * 2003-11-28 2007-09-19 Litforme Ltd Light directing duct
FR2939460A1 (en) * 2008-12-04 2010-06-11 Keala Sarl Openings joining device for use at e.g. roof of building, has frames cooperated with openings and skirt stretched on circumference of reinforcement between frames and fixed on frames
EP2896762A1 (en) * 2014-01-20 2015-07-22 FAKRO PP Sp. z o.o. Mounting method of a flexible light-bearing tunnel in a tunnel skylight
EP3789556A1 (en) * 2019-09-06 2021-03-10 VKR Holding A/S Roof light system comprising a roof module, a ceiling module and a shaft arrangement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2949956A1 (en) * 1979-12-12 1981-06-19 Werner Ing Grad Esslinger Universal pitched tiled roof opening cover panel - has deformable metal bars and flexible base piece fitting like folding bellows
US4339900A (en) * 1980-09-29 1982-07-20 Freeman William T Sky-light structure having a flexible-tube shaft
GB2102051A (en) * 1981-07-17 1983-01-26 Woodroffe Roofing Pty Limited Dome light unit
EP0131086A2 (en) * 1983-06-09 1985-01-16 Hans Klöber KG Vent pipe for a roof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1113613A (en) * 1953-12-15 1956-04-03 flexible element forming a tubular connector usable in particular on motor vehicles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2949956A1 (en) * 1979-12-12 1981-06-19 Werner Ing Grad Esslinger Universal pitched tiled roof opening cover panel - has deformable metal bars and flexible base piece fitting like folding bellows
US4339900A (en) * 1980-09-29 1982-07-20 Freeman William T Sky-light structure having a flexible-tube shaft
GB2102051A (en) * 1981-07-17 1983-01-26 Woodroffe Roofing Pty Limited Dome light unit
EP0131086A2 (en) * 1983-06-09 1985-01-16 Hans Klöber KG Vent pipe for a roof

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU624750B2 (en) * 1989-11-17 1992-06-18 Skydome Industries Limited Skylight system
AU654822B2 (en) * 1990-08-24 1994-11-24 Abey Australia Pty Ltd Improvements in skylights
GB2374111A (en) * 2001-03-20 2002-10-09 Monodraught Ltd Diffuser apparatus for internally reflective light pipe
EP1536079A3 (en) * 2003-11-28 2007-09-19 Litforme Ltd Light directing duct
WO2005068744A1 (en) * 2004-01-09 2005-07-28 Vkr Holding A/S Skylight with displacement absorber and interlocking telescoping tubes
US8555571B2 (en) 2004-01-09 2013-10-15 Vkr Holding A/S Skylight with displacement absorber and interlocking telescoping tubes
WO2005100871A1 (en) * 2004-04-19 2005-10-27 Vkr Holding A/S Roof light system comprising optional elements and interchangeable parts
GB2425134A (en) * 2005-04-14 2006-10-18 Monodraught Ltd Diffuser arrangement
FR2939460A1 (en) * 2008-12-04 2010-06-11 Keala Sarl Openings joining device for use at e.g. roof of building, has frames cooperated with openings and skirt stretched on circumference of reinforcement between frames and fixed on frames
EP2896762A1 (en) * 2014-01-20 2015-07-22 FAKRO PP Sp. z o.o. Mounting method of a flexible light-bearing tunnel in a tunnel skylight
EP3789556A1 (en) * 2019-09-06 2021-03-10 VKR Holding A/S Roof light system comprising a roof module, a ceiling module and a shaft arrangement
EP3789558A1 (en) * 2019-09-06 2021-03-10 VKR Holding A/S Light guiding system comprising a shaft arrangement, and method of providing such a shaft arrangement in a mounted condition
EP3789557A1 (en) * 2019-09-06 2021-03-10 VKR Holding A/S Kit for providing a roof light system comprising a roof module, a ceiling module and a shaft arrangement, and a method of installing a roof light system in a roof

Also Published As

Publication number Publication date
DE3860830D1 (en) 1990-11-22
EP0313461B1 (en) 1990-10-17
FR2621940A1 (en) 1989-04-21
ATE57561T1 (en) 1990-11-15

Similar Documents

Publication Publication Date Title
EP0313461B1 (en) Flexible shaft for use to join two openings, and particularly to canalize a luminous flux from a light catching opening to a light spreading opening, and building-room natural lighting system using said flexible shaft
EP2486199B1 (en) Collapsible lattice beam, truss and construction including such a beam
EP0207040B1 (en) Sun protecting device for glazed constructions
FR2932709A1 (en) DEPLOYABLE ARTICULATED STRUCTURE
EP2024587B1 (en) Temporary construction and associated method of assembly
CA1306849C (en) Device for holding temporarily together the ends of two structures, at least one of which in flexible
FR2637929A1 (en) Flexible conduit which can be used for connecting two openings and in particular for channelling a light flux from an opening capturing light towards an opening diffusing light, and a system for natural lighting of a room of a building making use of the said flexible conduit.
EP0001948B1 (en) Fastening device for glazing elements or the like
WO2015044380A1 (en) Protection device with symmetry mechanism
FR2781249A1 (en) Shutter slat hinge comprises C-section connector engaging with hook shaped edges of adjacent slats
FR2866908A1 (en) Surface cover for vehicle, has consecutive plates articulated with each other by connection unit having ends which are connected to plates, where connection unit has section which is formed of two circles connected by bridging
WO2007051921A1 (en) Mast for fixing or tensioning a cloth panel for protecting from sun and rain
FR2907492A1 (en) END PROFILE OF PROTECTIVE DEVICE APRON
FR2534299A1 (en) Flanged interlocking roofing or wall cladding panel
EP1820177B1 (en) Decorative structure which is intended, for example, for buildings or engineering structures
BE897990Q (en) MODULAR WALL PARTITION
EP1405964B1 (en) Rollable pool cover
FR2786218A1 (en) Parasol for use in outdoor congregational areas, comprises a central support to which is affixed individual canvas assemblies
FR2976011A1 (en) MODULAR PROTECTION DEVICE
FR2901742A1 (en) Roller sunshade for motor vehicle, has reinforcing strip extending in direction perpendicular to axis of roller tube and rolled on tube simultaneously with fabric, where strip has rectilinear shape
EP0323940A1 (en) Wind screen
FR2705718A1 (en) Installation having an arched tubular structure covered with at least one tarpaulin with incorporated cables and corresponding tarpaulin with incorporated cables
FR2818507A1 (en) DECORATIVE CYLINDRICAL BODY
FR2965739A1 (en) Metallic tissue panel for covering e.g. frontage of building, has spiral meshes that are connected with each other by rod in rods direction, where opening part of eye is greater than spiral meshes
FR3053380B1 (en) TEXTILE PROVIDED WITH A GUIDE DEVICE AND STORE ASSEMBLY EQUIPPED WITH SUCH A DEVICE

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19881026

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19900117

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19901017

Ref country code: GB

Effective date: 19901017

Ref country code: SE

Effective date: 19901017

Ref country code: AT

Effective date: 19901017

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19901017

REF Corresponds to:

Ref document number: 57561

Country of ref document: AT

Date of ref document: 19901115

Kind code of ref document: T

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19901025

Year of fee payment: 3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19901026

Year of fee payment: 3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19901029

Year of fee payment: 3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19901030

Year of fee payment: 3

Ref country code: ES

Payment date: 19901030

Year of fee payment: 3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19901031

REF Corresponds to:

Ref document number: 3860830

Country of ref document: DE

Date of ref document: 19901122

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19901130

Year of fee payment: 3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19910128

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19911031

Ref country code: CH

Effective date: 19911031

Ref country code: BE

Effective date: 19911031

BERE Be: lapsed

Owner name: S.A. SIPLAST

Effective date: 19911031

Owner name: S.A. SPIRAGAINE

Effective date: 19911031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920701

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19930907

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19950630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST