EP2154309B1 - Spiral staircase - Google Patents

Spiral staircase Download PDF

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Publication number
EP2154309B1
EP2154309B1 EP09010266A EP09010266A EP2154309B1 EP 2154309 B1 EP2154309 B1 EP 2154309B1 EP 09010266 A EP09010266 A EP 09010266A EP 09010266 A EP09010266 A EP 09010266A EP 2154309 B1 EP2154309 B1 EP 2154309B1
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EP
European Patent Office
Prior art keywords
profiles
spiral staircase
tread
staircase according
designed
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.)
Not-in-force
Application number
EP09010266A
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German (de)
French (fr)
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EP2154309A1 (en
Inventor
Michel Petel
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Gantois
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Gantois
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
    • E04F11/032—Spiral stairways supported by a central column
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F11/112—Treads of metal or with an upper layer of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F2011/1046—Miscellaneous features of treads not otherwise provided for
    • E04F2011/1048—Miscellaneous features of treads not otherwise provided for with lighting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/006—General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
    • F21W2111/027—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like for indicating kerbs, steps or stairs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a helical staircase.
  • a spiral staircase of the type comprising a central shaft, a set of steps each having a tread having the shape of a disk sector, at least one mounting plate adapted to connect to the drum a corresponding step.
  • the patent FR 2,712,010 describes a helical staircase of the type described above.
  • This document describes a staircase comprising a device for fixing the steps to the central shaft.
  • the device for fixing the steps comprises a fastener having a curvature adapted to that of the central shaft which is disposed between the plate and the central shaft.
  • this document does not describe a staircase with adjustable steps, that is to say composed of different modules assembled to each other, which may have modifiable dimensions and a different size depending on the location where is arranged the staircase.
  • each step comprises profiles held on the corresponding plate and adapted to support the tread of said step, the plate having two projecting portions, which extend in a plane substantially perpendicular to the shank, on which the profiles are held, the two projecting portions defining between them an angle ⁇ substantially corresponding to the angle of the disk sector formed by the tread.
  • the spiral staircase according to the invention has elements that can be used regardless of the final dimensions of the staircase. These elements have easily adaptable shapes. In addition these elements can easily integrate security means, independently of each other.
  • the spiral staircase according to the invention consists of a set of steps and plates, a step 10 and a plate 12 are shown on the figure 1 appended disposed in a helical direction centered on the axis of the barrel.
  • Each step 10 comprises a tread 14, which extends in a substantially horizontal plane and on which the user bears.
  • the tread 14 has the shape substantially of a disc sector, the arc 16 of which is located on the side opposite to the barrel 13.
  • the tread 14, has on its upper face 18 anti-slip means 20 ensuring a sufficient friction to prevent the user from slipping the step 10.
  • These means 20 are known and may for example have the shape of a perforated or stamped anti-slip surface.
  • the tread 14 is made of a material selected from the group consisting of metal alloys, polymeric materials, composite materials, wood, glass.
  • Each tread 14 rests on two tubular sections 22, 24 hollow made of extruded metal.
  • each tread is fixed on two sections 22a, 22b by rivets 26.
  • the profiles 22a, 22b extend longitudinally between a first end 28a, 28b located on the side of the shaft 13 and a second end 30a, 30b.
  • the first end 28a, 28b of each profile 22a, 22b is held on the plate 12, by screwing.
  • the second ends 30a, 30b of the profiles are connected to each other by means of a closing strip 32 in an arc of a circle, substantially identical to the arc formed by the disk sector sector.
  • the closure band 32 is adapted to support the tread 14.
  • the closing band 32 is fixed to the profiles by a self-tapping threaded socket 34 for quick and easy attachment.
  • Each step 10 constituted at least by a tread 14, two sections 22a, 22b and a closure strip 32 has, after assembly, a symmetry with respect to a substantially vertical median plane.
  • the steps 10 can then be used either for a staircase with left propeller or propeller on the right.
  • Each step 10 is attached to the drum 13 by means of the plate 12.
  • the plate 12 is fixed on one side to the drum 13 by screwing, and is connected on the opposite side to the profiles 22a, 22b of the step 10.
  • each plate 12 has two longitudinal portions 36a, 36b protruding in the opposite direction of the barrel.
  • the longitudinal portions 36a, 36b extend in a substantially horizontal plane, perpendicular to the barrel 13.
  • the two longitudinal portions 36a, 36b are spaced apart angularly by an angle ⁇ and present a substantially tubular hollow shape, opening on the one hand on the side of the barrel 13 and opening on the other side of the profiles 22a, 22b.
  • Each plate 12 is made in one piece by molding. It is thus possible to achieve the desired shape of the plate by modifying the mold. It is in particular possible to modify the angle ⁇ defined between the two longitudinal portions 36a, 36b.
  • the two sections 22a, 22b of a step 10 are respectively nested on the two longitudinal portions 36a, 36b, so that the longitudinal portions 36a, 36b respectively open inside the sections 22a, 22b.
  • the tread 14 is then arranged and fixed on the profiles 22a, 22b which have an angle ⁇ between them. It is then necessary for the angle of the disk sector defined by the tread to be substantially equal to the angle ⁇ .
  • the angular spacing ⁇ between the two longitudinal portions 36a, 36b thus determines the angle of the disk sector delimited by the tread 14.
  • the profile 22a located at the front of the step forms a stair nosing and is adapted to receive signaling means improving the visibility of the march and therefore improving the safety of users.
  • the hollow shape of the profiles 22a, 22b and longitudinal portions makes it possible to insert wiring elements for supplying light systems integrated in the profiles.
  • the profiles 22a, 22b have at least one longitudinal groove 28 adapted to receive light means 40 such as an LED lighting system or a strip of contrasting color material or photoluminescent.
  • the profile may have holes for connecting the LED lighting system with the wiring.
  • the profiles 22a, 22b can receive, on the face facing upwards, an anti-slip element 42 formed of longitudinal ridges and arranged over the entire length of the profile 22a, 22b.
  • the figure 2 represents a sectional view of a profile 22a according to the invention.
  • Each section has two receiving grooves 44, 46 adapted to receive the tread 14 and having a different depth.
  • the profile 22a will be oriented, that is to say will be arranged at the front or rear of the step, depending on the thickness of the tread desired by the manufacturer.
  • each profile 22a, 22b comprises two grooves 38 adapted to receive light means 40.
  • the grooves 38 are disposed substantially symmetrically with respect to a horizontal median plane of the profile.
  • the latter comprises an upwardly directed groove 38 in which a luminous means 40 is inserted.
  • the present invention provides a modular helical staircase, that is to say composed of different modules assembled to each other, the dimensions of each module can be easily modified, so as to obtain adaptable stairs.
  • each module has elements improving the security of the users.
  • the staircase according to the invention thus makes it possible to integrate all the functions recommended by the "Fire safety regulations relating to establishments open to the public".

Abstract

The staircase has a central sleeve (13), a set of steps (10) respectively including treads (14) formed by disk sectors, and a fixation plate (12) connecting each step to the sleeve. Each step includes sections (22a, 22b) maintained on the corresponding plate and supporting each tread. Each plate includes longitudinal portions (36a, 36b) on which the sections of each step are maintained and extending in a plane perpendicular to the sleeve. The longitudinal portions of each plate forms an angle corresponding to an angle of each disk sector.

Description

La présente invention concerne un escalier hélicoïdal.The present invention relates to a helical staircase.

Plus particulièrement, elle porte sur un escalier hélicoïdal du type comportant un fût central, un ensemble de marches comportant chacune un giron présentant la forme d'un secteur de disque, au moins une platine de fixation adaptée à relier au fût une marche correspondante.More particularly, it relates to a spiral staircase of the type comprising a central shaft, a set of steps each having a tread having the shape of a disk sector, at least one mounting plate adapted to connect to the drum a corresponding step.

Le brevet FR 2 712 010 décrit un escalier hélicoïdal du type décrit ci-dessus. Ce document décrit un escalier comportant un dispositif de fixation des marches au fût central. Le dispositif de fixation des marches comporte une pièce de fixation présentant une courbure adaptée à celle du fût central qui est disposé entre la platine et le fût central. Toutefois ce document ne décrit pas un escalier comportant des marches modulables, c'est-à-dire composé de différents modules assemblés les uns aux autres, pouvant présenter des dimensions modifiables et un encombrement différent en fonction de l'endroit où est disposé l'escalier.The patent FR 2,712,010 describes a helical staircase of the type described above. This document describes a staircase comprising a device for fixing the steps to the central shaft. The device for fixing the steps comprises a fastener having a curvature adapted to that of the central shaft which is disposed between the plate and the central shaft. However, this document does not describe a staircase with adjustable steps, that is to say composed of different modules assembled to each other, which may have modifiable dimensions and a different size depending on the location where is arranged the staircase.

Des escaliers similaires sont connus de WO2005/071182 et BE711586 .Similar stairs are known WO2005 / 071182 and BE711586 .

La présente invention a pour but de pallier ces inconvénients. A cet effet l'escalier hélicoïdal du type décrit ci-dessus est caractérisé en ce que chaque marche comporte des profilés maintenus sur la platine correspondante et adaptés à supporter le giron de ladite marche, la platine comportant deux portions en saillie, qui s'étendent dans un plan sensiblement perpendiculaire au fût, sur lesquelles sont maintenus les profilés, les deux portions en saillie définissant entre elles un angle α correspondant sensiblement à l'angle du secteur de disque formé par le giron.The present invention aims to overcome these disadvantages. For this purpose the spiral staircase of the type described above is characterized in that each step comprises profiles held on the corresponding plate and adapted to support the tread of said step, the plate having two projecting portions, which extend in a plane substantially perpendicular to the shank, on which the profiles are held, the two projecting portions defining between them an angle α substantially corresponding to the angle of the disk sector formed by the tread.

Grâce à ces dispositions, l'escalier hélicoïdal selon l'invention présente des éléments qui peuvent être utilisés quelles que soient les dimensions finales de l'escalier. Ces éléments présentent des formes facilement adaptables. De plus ces éléments peuvent intégrer facilement des moyens de sécurité, indépendamment les uns des autres.Thanks to these provisions, the spiral staircase according to the invention has elements that can be used regardless of the final dimensions of the staircase. These elements have easily adaptable shapes. In addition these elements can easily integrate security means, independently of each other.

Selon d'autres caractéristiques

  • les profilés sont reliés entre eux à l'extrémité opposée de la platine au moyen d'une bande de fermeture.
  • les profilés et les portions longitudinales présentent une forme tubulaire creuse réalisée de manière à ce que les profilés s'emboîtent sur les portions longitudinales ;
  • les profilés comportent au moins une rainure adaptée à recevoir des moyens de signalement lumineux ;
  • les profilés comportent deux rainures adaptées à recevoir des moyens de signalement lumineux et disposées symétriquement par rapport à un plan médian sensiblement horizontal ;
  • les profilés comportent au moins un élément anti-dérapant disposé sur toute la longueur du profilé ;
  • la platine est réalisée d'une seule pièce par moulage ;
  • les profilés comportent deux rainures de réception adaptées à recevoir le giron, disposées parallèlement de part et d'autre du plan médian horizontal ;
  • les rainures de réception présentent respectivement des profondeurs différentes ;
According to other characteristics
  • the profiles are connected to each other at the opposite end of the plate by means of a closing band.
  • the profiles and the longitudinal portions have a hollow tubular shape made so that the profiles fit on the longitudinal portions;
  • the profiles comprise at least one groove adapted to receive light signaling means;
  • the profiles comprise two grooves adapted to receive light signaling means and arranged symmetrically with respect to a substantially horizontal median plane;
  • the profiles comprise at least one anti-slip element disposed over the entire length of the profile;
  • the plate is made in one piece by molding;
  • the profiles comprise two reception grooves adapted to receive the tread, arranged parallel on either side of the horizontal median plane;
  • the receiving grooves respectively have different depths;

La présente invention sera mieux comprise à la lecture de la description détaillée qui suit faite en référence aux figures annexées dans lesquelles

  • la figure 1 représente une vue en perspective éclatée d'une marche de l'escalier selon l'invention, d'une platine et d'une partie du fût,
  • la figure 2 représente une vue en section d'un profilé de l'escalier selon l'invention.
The present invention will be better understood on reading the detailed description which follows with reference to the appended figures in which
  • the figure 1 represents an exploded perspective view of a step of the staircase according to the invention, a plate and a part of the drum,
  • the figure 2 represents a sectional view of a section of the staircase according to the invention.

L'escalier hélicoïdal selon l'invention est constitué d'un ensemble de marches et de platines, dont une marche 10 et une platine 12 sont représentées sur la figure 1 annexée disposées selon une direction hélicoïdale centrée sur l'axe du fût.The spiral staircase according to the invention consists of a set of steps and plates, a step 10 and a plate 12 are shown on the figure 1 appended disposed in a helical direction centered on the axis of the barrel.

Chaque marche 10 comporte un giron 14, qui s'étend dans un plan sensiblement horizontal et sur lequel l'utilisateur prend appui. Le giron 14 présente la forme sensiblement d'un secteur de disque, dont l'arc de cercle 16 est situé du côté opposé au fût 13. De préférence le giron 14, présente sur sa face supérieure 18 des moyens anti-dérapant 20 assurant un frottement suffisant pour éviter à l'utilisateur de glisser de la marche 10. Ces moyens 20 sont connus et peuvent par exemple présenter la forme d'une surface antidérapante perforée ou emboutie.Each step 10 comprises a tread 14, which extends in a substantially horizontal plane and on which the user bears. The tread 14 has the shape substantially of a disc sector, the arc 16 of which is located on the side opposite to the barrel 13. Preferably the tread 14, has on its upper face 18 anti-slip means 20 ensuring a sufficient friction to prevent the user from slipping the step 10. These means 20 are known and may for example have the shape of a perforated or stamped anti-slip surface.

Le giron 14 est réalisé en un matériau choisi parmi le groupe constitué des alliages métalliques, des matériaux polymères, des matériaux composites, du bois, du verre.The tread 14 is made of a material selected from the group consisting of metal alloys, polymeric materials, composite materials, wood, glass.

Chaque giron 14 repose sur deux profilés tubulaires 22, 24 creux réalisés en métal extrudé. De préférence chaque giron est fixé sur deux profilés 22a, 22b par des rivets 26. Les profilés 22a, 22b s'étendent longitudinalement entre une première extrémité 28a, 28b située du côté du fût 13 et une deuxième extrémité 30a, 30b. La première extrémité 28a, 28b de chaque profilé 22a, 22b est maintenue sur la platine 12, par vissage. Les deuxièmes extrémités 30a, 30b des profilés sont reliées entre elles au moyen d'une bande de fermeture 32 en arc de cercle, sensiblement identique à l'arc de cercle formé par le secteur de disque. La bande de fermeture 32 est adaptée à supporter le giron 14. La bande de fermeture 32 est fixée aux profilés par une douille filetée autotaraudeuse 34 permettant une fixation rapide et simple.Each tread 14 rests on two tubular sections 22, 24 hollow made of extruded metal. Preferably each tread is fixed on two sections 22a, 22b by rivets 26. The profiles 22a, 22b extend longitudinally between a first end 28a, 28b located on the side of the shaft 13 and a second end 30a, 30b. The first end 28a, 28b of each profile 22a, 22b is held on the plate 12, by screwing. The second ends 30a, 30b of the profiles are connected to each other by means of a closing strip 32 in an arc of a circle, substantially identical to the arc formed by the disk sector sector. The closure band 32 is adapted to support the tread 14. The closing band 32 is fixed to the profiles by a self-tapping threaded socket 34 for quick and easy attachment.

Chaque marche 10 constituée au moins par un giron 14, deux profilés 22a, 22b et une bande de fermeture 32 présente, après assemblage, une symétrie par rapport à un plan médian sensiblement vertical. Les marches 10 peuvent alors être utilisées soit pour un escalier avec hélice à gauche ou hélice à droite.Each step 10 constituted at least by a tread 14, two sections 22a, 22b and a closure strip 32 has, after assembly, a symmetry with respect to a substantially vertical median plane. The steps 10 can then be used either for a staircase with left propeller or propeller on the right.

Chaque marche 10 est attachée au fut 13 au moyen de la platine 12. La platine 12 est fixée, d'un côté, au fût 13 par vissage, et est reliée du côté opposé aux profilés 22a, 22b de la marche 10. A cet effet chaque platine 12 comporte deux portions longitudinales 36a, 36b faisant saillie en direction opposée du fût. Lorsque la platine 12 est mise en place sur le fût 13, les portions longitudinales 36a, 36b s'étendent dans un plan sensiblement horizontal, perpendiculaire au fût 13. Les deux portions longitudinales 36a, 36b sont écartées angulairement d'un angle α et présentent une forme sensiblement tubulaire creuse, débouchant d'une part du côté du fût 13 et débouchant d'autre part du côté des profilés 22a, 22b.Each step 10 is attached to the drum 13 by means of the plate 12. The plate 12 is fixed on one side to the drum 13 by screwing, and is connected on the opposite side to the profiles 22a, 22b of the step 10. At this effect each plate 12 has two longitudinal portions 36a, 36b protruding in the opposite direction of the barrel. When the plate 12 is placed on the barrel 13, the longitudinal portions 36a, 36b extend in a substantially horizontal plane, perpendicular to the barrel 13. The two longitudinal portions 36a, 36b are spaced apart angularly by an angle α and present a substantially tubular hollow shape, opening on the one hand on the side of the barrel 13 and opening on the other side of the profiles 22a, 22b.

Chaque platine 12 est réalisée d'une seule pièce par moulage. II est ainsi possible de réaliser la forme souhaitée de la platine en modifiant le moule. Il est notamment possible de modifier l'angle α défini entre les deux portions longitudinales 36a, 36b.Each plate 12 is made in one piece by molding. It is thus possible to achieve the desired shape of the plate by modifying the mold. It is in particular possible to modify the angle α defined between the two longitudinal portions 36a, 36b.

En position montée, les deux profilés 22a, 22b d'une marche 10 sont respectivement emboîtés sur les deux portions longitudinales 36a, 36b, de manière à ce que les portions longitudinales 36a, 36b débouchent respectivement à l'intérieur des profilés 22a, 22b. Le giron 14 est ensuite disposé et fixé sur les profilés 22a, 22b qui présentent entre eux un angle α. Il est alors nécessaire que l'angle du secteur de disque défini par le giron soit sensiblement égal à l'angle α. L'écartement angulaire α entre les deux portions longitudinales 36a, 36b détermine donc l'angle du secteur de disque délimité par le giron 14. Ainsi si le fabricant souhaite agrandir ou réduire le secteur de disque, c'est-à-dire agrandir ou diminuer la surface supérieure du giron, il est alors nécessaire de modifier la valeur de l'angle α.
Le profilé 22a situé à l'avant de la marche forme un nez de marche et est adapté à recevoir des moyens de signalement améliorant la visibilité de la marche et par conséquent améliorant la sécurité des utilisateurs.In the mounted position, the two sections 22a, 22b of a step 10 are respectively nested on the two longitudinal portions 36a, 36b, so that the longitudinal portions 36a, 36b respectively open inside the sections 22a, 22b. The tread 14 is then arranged and fixed on the profiles 22a, 22b which have an angle α between them. It is then necessary for the angle of the disk sector defined by the tread to be substantially equal to the angle α. The angular spacing α between the two longitudinal portions 36a, 36b thus determines the angle of the disk sector delimited by the tread 14. Thus, if the manufacturer wishes to enlarge or reduce the disk sector, that is to say enlarge or reduce the upper surface of the tread, it is then necessary to change the value of the angle α.
The profile 22a located at the front of the step forms a stair nosing and is adapted to receive signaling means improving the visibility of the march and therefore improving the safety of users.

La forme creuse des profilés 22a, 22b et des portions longitudinales permet d'y insérer des éléments de câblage pour l'alimentation de systèmes lumineux intégrés dans les profilés. A cet effet, les profilés 22a, 22b présentent au moins une rainure longitudinale 28 adaptée à recevoir des moyens lumineux 40 tels qu'un système d'éclairage par LED ou une bande de matériau de couleur contrastée ou photo-luminescente. Le profilé peut présenter des trous permettant de relier le système d'éclairage par LED avec le câblage. De plus les profilés 22a, 22b peuvent recevoir, sur la face dirigée vers le haut, un élément anti-dérapant 42 formé de striées longitudinales et disposé sur toute la longueur du profilé 22a, 22b.The hollow shape of the profiles 22a, 22b and longitudinal portions makes it possible to insert wiring elements for supplying light systems integrated in the profiles. For this purpose, the profiles 22a, 22b have at least one longitudinal groove 28 adapted to receive light means 40 such as an LED lighting system or a strip of contrasting color material or photoluminescent. The profile may have holes for connecting the LED lighting system with the wiring. Moreover the profiles 22a, 22b can receive, on the face facing upwards, an anti-slip element 42 formed of longitudinal ridges and arranged over the entire length of the profile 22a, 22b.

La figure 2 représente une vue en section d'un profilé 22a selon l'invention. Chaque profilé présente deux rainures de réception 44, 46 adaptées à recevoir le giron 14 et présentant une profondeur différente. Le profilé 22a sera orienté, c'est-à-dire sera disposé à l'avant ou à l'arrière de la marche, en fonction de l'épaisseur du giron souhaité par le fabricant.The figure 2 represents a sectional view of a profile 22a according to the invention. Each section has two receiving grooves 44, 46 adapted to receive the tread 14 and having a different depth. The profile 22a will be oriented, that is to say will be arranged at the front or rear of the step, depending on the thickness of the tread desired by the manufacturer.

De préférence chaque profilé 22a, 22b comporte deux rainures 38 adaptées à recevoir des moyens lumineux 40. Les rainures 38 sont disposées sensiblement symétriquement par rapport à un plan médian horizontal du profilé. Ainsi quelle que soit la disposition du profilé 22a, ce dernier comporte une rainure 38 orientée vers le haut dans laquelle on insère un moyen lumineux 40.Preferably each profile 22a, 22b comprises two grooves 38 adapted to receive light means 40. The grooves 38 are disposed substantially symmetrically with respect to a horizontal median plane of the profile. Thus, whatever the arrangement of the profile 22a, the latter comprises an upwardly directed groove 38 in which a luminous means 40 is inserted.

La présente invention permet d'obtenir un escalier hélicoïdal modulaire, c'est-à-dire composé de différents modules assemblés les uns aux autres, les dimensions de chaque module pouvant être aisément modifiables, de manière à obtenir des escaliers adaptables. De plus chaque module comporte des éléments améliorant la sécurité des utilisateurs. L'escalier selon l'invention permet ainsi d'intégrer toutes les fonctions préconisées par le « Règlement de sécurité contre l'incendie relatif aux établissements recevant du public ».The present invention provides a modular helical staircase, that is to say composed of different modules assembled to each other, the dimensions of each module can be easily modified, so as to obtain adaptable stairs. In addition each module has elements improving the security of the users. The staircase according to the invention thus makes it possible to integrate all the functions recommended by the "Fire safety regulations relating to establishments open to the public".

Claims (9)

  1. Spiral staircase comprising:
    a central shaft (13),
    a set of steps (10) each comprising a tread (14) in the form of a sector of a disc,
    at least one fixing plate (12) designed to join a corresponding step (10) onto the shaft (13),
    each step (10) comprising profiles (22a, 22b), which are held on the corresponding support plate (12) and designed to support the tread (14) of the said step, characterised in that the support plate (12) comprises two projecting portions (36a, 36b), which extend in a plane substantially perpendicular to the shaft (13) and onto which the profiles (22a, 22b) are able to be secured, the two projecting portions (36a, 36b) defining between them an angle α corresponding substantially to the angle of the sector of the disc formed by the tread (14).
  2. Spiral staircase according to the preceding claim, in which the profiles (22a, 22b) are joined together at the opposite end (30a, 30b) of the support plate (12) by means of a closing strip (32).
  3. Spiral staircase according to any one of the preceding claims, in which the profiles (22a, 22b) and the longitudinal portions (36a, 36b) have a hollow tubular shape such that the profiles (22a, 22b) fit onto the longitudinal portions (36a, 36b).
  4. Spiral staircase according to any one of the preceding claims, in which the profiles (22a, 22b) comprise at least one groove (38), designed to mount light signalling means (40).
  5. Spiral staircase according to the preceding claim in which the profiles (22a, 22b) comprise two mounting grooves (38) which are designed to mount the light signalling means and are arranged symmetrically in relation to a substantially horizontal median plane.
  6. Spiral staircase according to any one of the preceding claims, in which the profiles (22a, 22b) comprise at least one non-slip element (42) arranged along the entire length of the profile.
  7. Spiral staircase according to any one of the preceding claims, in which the support plate (12) is produced in one piece by moulding.
  8. Spiral staircase according to any one of the preceding claims, in which the profiles (22a, 22b) comprise two mounting grooves (44, 46) which are designed to mount the tread (14) and are arranged in parallel on either side of the horizontal median plane.
  9. Spiral staircase according to the preceding claim, in which the mounting grooves (44, 46) have different depths respectively.
EP09010266A 2008-08-13 2009-08-08 Spiral staircase Not-in-force EP2154309B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0804578A FR2935011B1 (en) 2008-08-13 2008-08-13 HELICOIDAL STAIRCASE

Publications (2)

Publication Number Publication Date
EP2154309A1 EP2154309A1 (en) 2010-02-17
EP2154309B1 true EP2154309B1 (en) 2011-09-21

Family

ID=39933402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09010266A Not-in-force EP2154309B1 (en) 2008-08-13 2009-08-08 Spiral staircase

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Country Link
EP (1) EP2154309B1 (en)
AT (1) ATE525537T1 (en)
FR (1) FR2935011B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105089216A (en) * 2015-09-11 2015-11-25 深圳市深装总装饰股份有限公司 Three-dimensional positioning decoration construction method for spiral staircase stone facing
US10378212B1 (en) * 2018-05-23 2019-08-13 Safe Rack Llc Tread mounting system for spiral staircase

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE711586A (en) * 1968-03-01 1968-07-15
JPS54139222A (en) * 1978-04-20 1979-10-29 Akebono Kikai Kk Spiral staircase
DE9217523U1 (en) * 1992-12-22 1993-03-04 Hamm, Wilhelm, 4330 Muelheim, De
FR2712010B1 (en) 1993-11-05 1995-12-22 Pacemetal Devices for fixing the steps to the central shaft of a helical staircase and staircase comprising such devices.
GR1004891B (en) * 2004-01-21 2005-05-23 Ιερωνυμακης Γεωργιος-Μεταλλικες Κατασκευες Ανωνυμη Βιομηχανικη Και Εμπορικη Εταιρεια Με Δ.Τ. "Γ.Ιερωνυμακης Ινοχ Αβεε" Spiral staircase construction system

Also Published As

Publication number Publication date
ATE525537T1 (en) 2011-10-15
EP2154309A1 (en) 2010-02-17
FR2935011A1 (en) 2010-02-19
FR2935011B1 (en) 2010-09-03

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