EP3406821A1 - Treppenmodul für wendeltreppe mit sechseckigem querschnitt, anordnung mit mindestens einem solchen modul und treppe, die mindestens eine solche anordnung umfasst - Google Patents

Treppenmodul für wendeltreppe mit sechseckigem querschnitt, anordnung mit mindestens einem solchen modul und treppe, die mindestens eine solche anordnung umfasst Download PDF

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Publication number
EP3406821A1
EP3406821A1 EP18173589.5A EP18173589A EP3406821A1 EP 3406821 A1 EP3406821 A1 EP 3406821A1 EP 18173589 A EP18173589 A EP 18173589A EP 3406821 A1 EP3406821 A1 EP 3406821A1
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EP
European Patent Office
Prior art keywords
post
module
staircase
corner
posts
Prior art date
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Granted
Application number
EP18173589.5A
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English (en)
French (fr)
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EP3406821B1 (de
Inventor
Fabrice Fay
Michel Gobert
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Mills SA
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Mills SA
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Publication date
Priority claimed from FR1754501A external-priority patent/FR3066516B1/fr
Application filed by Mills SA filed Critical Mills SA
Publication of EP3406821A1 publication Critical patent/EP3406821A1/de
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Publication of EP3406821B1 publication Critical patent/EP3406821B1/de
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02Stairways; Layouts thereof
    • E04F11/022Stairways; Layouts thereof characterised by the supporting structure
    • E04F11/035Stairways consisting of a plurality of assembled modular parts without further support
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02Stairways; Layouts thereof
    • E04F11/022Stairways; Layouts thereof characterised by the supporting structure
    • E04F11/032Spiral stairways supported by a central column

Definitions

  • the invention relates to the field of modular helical or rotating staircases, indoor or outdoor, allowing the movement of people between a low area and a high area of installation of the staircase, which is not of the integrated type or associated with scaffolding, and, generally speaking, does not constitute a workstation, or is not associated with such a workstation, but only allows access from the ground, or a low level, to serve a only high level, or vice versa.
  • the invention relates to a modular spiral staircase of hexagonal horizontal cross section, which can be mounted by non-professional persons, from a set of modular elements, the assembly including in particular at least one module staircase with two steps, and preferably a plurality of such modules identical to each other, all the modular elements of the assembly allowing the construction of the staircase being light enough to be easily handled by non-specialized personnel to the assembly of a helical modular staircase of a simple and economical structure, by the implementation of a simple assembly process by repeated cycles.
  • the staircase according to the present invention does not comprise a wedge or key to be struck, as for most scaffolding, and its assembly does not require that the assembly staff has followed a training, without this jeopardizing the security, the course of assembly as when using the helical staircase, which is not a temporary staircase.
  • the invention proposes a stair module for a modular spiral staircase of hexagonal horizontal cross section, delimited by six vertical corner uprights around a vertical central upright, said module comprising a central pole of substantially axis. vertical and two substantially triangular shaped steps, including a low step and a high step, extending in horizontal planes perpendicular to the axis of the central post and radially from said central post, to which the steps are each secured by a narrow edge radially internal end, said two steps being each secured by a wide edge of outer radial end to a single slime in the form of a plate substantially flat and parallel to the axis of the central post, the stringer having a lower portion and an upper portion secured to the edge of the wide edge respectively of the low step and the high step, and the module comprising two angle poles d axes parallel to the axis of the central pole, so that the upper ends of the three columns of the module are in the same transverse plane perpendicular to the axes of the three columns of
  • the stair module is such that the central post and the two corner posts are three tubular posts, secured to both steps and with the common stringer, and whose lower ends are each constituted by one respectively of three sleeves, including that of the rear corner post is longer than those of substantially the same length of the other two poles and has a bayonet light opening in the lower edge of said sleeve, a locking device corresponding to a radial pin on the upper end of the front corner post or a corner post post of the staircase.
  • the module is advantageously such that the three posts of said module are made of metal or light alloy and secured to the steps and the slime which are in the same metal or alloy.
  • the sleeve of the rear corner post protrudes below the substantially horizontal plane perpendicular to the axis of the lower end of the central pole and the front corner post whose sleeves are of substantially identical height.
  • the stringer has a substantially rectangular bottom portion with lower and upper edges substantially parallel to the step low, and an upper portion substantially U-shaped returned, upper edge substantially parallel to the high step.
  • This realization of the silt also allows to present, at the connection between the lower part of the silt and the adjacent branch of the U returned from the upper part of this silt, a sufficiently large surface for the display, by any appropriate means (gluing, painting or other marking) of assembly instructions.
  • the spiral staircase hexagonal section takes up a limited space, for example in a circular cylinder diameter of less than 2 meters, while allowing to stack identical modules on each other so that simultaneously, the two steps of each module have a support surface or comfortable support, the parallel axes of the three columns of the module each pass through one respectively of the three vertices of an equilateral triangle in a cross sectional plane of the module perpendicular to the axes of said posts, and each step has a substantially rectangular plane shape.
  • the invention also relates, in a second step, a set of modular elements, to achieve the modular helical staircase hexagonal horizontal cross section delimited by six vertical corner uprights around a vertical central upright, the assembly comprising a trapezoidal base for the placing on the ground of the modular elements, this assembly being characterized in that at least one modular element among said modular elements of the set is a staircase module with two steps as presented above , at least one second modular element among the modular elements of the assembly being a railing comprising two vertical tubular uprights of unequal length, braced, at the bottom, by a cross member and at the top by at least one, but preferably two, cross (s) inclined (s) forming smooth (s) protection , the longer upright of the two railing posts supporting, projecting outwardly, a plate at the bottom and each of the two uprights supporting a sleeve projecting upwardly at the top, which are parallel to the upright railing, said plate being slidable around the upper end of the rear corner post of a stair module or on
  • Such railing thus mounted in a side face of the hexagonal staircase which is delimited by the rear corner post on which one of its two sleeves is mounted, and the corner post post on which l other of its sleeves is mounted, prevents the fall of a user over the silt coming to be positioned in this side face of the staircase, when a next stair module has been mounted on the one whose rear corner post supports the railing plate.
  • This hook facilitates the assembly of the railing to other modular elements and conditions the sequence of assembly steps of the various elements forming the staircase.
  • the second and / or third pole may comprise a pin of a locking device, adapted to cooperate with at least one light of said locking device that equips a pole of a stair module.
  • the set of modular elements for the construction of the staircase also comprises an additional modular element arranged as a railing for closing the staircase.
  • staircase comprising two tubular railing posts, of the same height, braced by at least two horizontal straight rails, rigidly connected, by each of their two ends, to one respectively of the two railing posts, one of which upper smooth connecting the two upper ends of the two railing posts, and at least one middle rail, so as to form an open frame between the lower ends of these two uprights
  • said closing railing also comprising, in the lower part amounts and outwardly projecting outwardly, two collars each connected to one of the two uprights, and able to be removably mounted one to the one of the central uprights and the other around a corner post of the staircase, in the middle part of the uprights and projecting outwards, two plates each connected to one of the two uprights and to the axis parallel to the latter, and able to slide removably on the central and
  • the other stair module on which the closing railing is mounted by its two sleeves is the last module with two steps of the staircase, in the direction of the climb, that is to say the highest , the exit of the staircase or its entrance, at the top end of this staircase, being over the mud of this last stair module.
  • the set of modular elements according to the invention also comprises , as additional modular elements, seven foot cylinders, each of which is capable of adjusting in height one respectively of the two corner posts of a first stair module with two steps, and the substantially horizontal trapezoidal base, whose small base and two inclined sides are of the same length corresponding to one side of the hexagonal section of the staircase, and produced by the assembly of rectilinear sections constituting at least the two bases and the two inclined sides of the trapezoidal base, which is adapted to receive a foot cylinder at each of its four vertices, and adapted to adjust in height angle post posts delimiting three adjacent faces of the hexagonal horizontal cross section of the helical modular staircase, a foot jack equipping the middle of the large base of the base.
  • the invention relates to a modular spiral staircase of hexagonal horizontal cross-section, delimited by six vertical uprights around a vertical central upright, and comprising a set of modular elements specific to the invention and as defined above, whose modular elements are assembled to each other.
  • the invention relates, in a fourth time, to an advantageous method of mounting a helical modular staircase according to the invention, this method being characterized in that it comprises a succession of cycles each comprising three stages, the first of which is the provision of an angle post pole, on a cylinder or on another identical module previously arranged, the second step is to mount a railing, whose plate slides around the corner post post, then by rotating about said corner post post until the hook abuts against the rear corner post of said stair module, so that the guard rail extends into said adjacent face of the staircase hexagonal, of such that said post post delimits with the guardrail an adjacent face of the hexagonal staircase, and the third stage is the arrangement of a staircase module with two steps on jacks or on a module identical and an angle post post previously arranged, and such that the two corner posts of said stair module define a face of the hexagonal horizontal cross section staircase.
  • the guardrail is previously oriented so that the longer amount of the two amounts of the guardrail is close to the central post, then, the longer amount of the two amounts the railing is pivoted around the underlying corner post post until the hook abuts against the rear corner post of said stair module.
  • the method further comprises a step prior to the first cycle which consists in placing on the base a first step.
  • the helical staircase comprises twelve modules with two steps, or twenty-five steps in all, and rises to a maximum height of about 5 meters.
  • the method of mounting such a staircase is such that from the fourth cycle, all the corner post posts mounted in the first stage of the cycles are identical to the fourth corner post post, and each post post angle is mounted on and in the extension of a corner post before an underlying stair module.
  • the two lateral tenons of each post of corner post engage in the vertical lateral projection sleeves of two adjacent underlying railings previously mounted, so as to stiffen the structure of the staircase.
  • each corner post post prefferably fixed by its free end to the previously mounted angle post post in an inclined spacer substantially parallel to the one or more smooth slope (s) of an underlying railing previously mounted, so as to act as third inclined smooth.
  • the invention proposes a basic module 1, as shown in FIG. Figures 1a, 1b and 4 , with three tubular cylindrical posts 2, 10 and 11, of parallel axes, supporting two steps 3 and 4 whose bearing surfaces extend in planes perpendicular to the axes of the tubular cylindrical posts 2, 10 and 11, and a silt 7 bordering the steps 3 and 4 on one side corresponding to one of the six outer lateral faces of the staircase.
  • central post 2 One of the posts is called central post 2, because it participates in the constitution of the vertical vertical column of a staircase by the vertical stack and in the extension of each other of the central posts 2 of all the modules 1 used for the mounting a staircase, as described below with reference to Figures 13 to 19 .
  • the two steps are a low step 3 and a high step 4, each in the shape of a right triangle, seen in plan, as shown respectively on the Figures 2 and 3 , and each extending in one respectively of two parallel planes, radially with respect to the vertical axis Z, in the position of use, of the central post 2, to which each step 3, 4 is secured by its internal radial end at a narrow edge 5 in an arc corresponding to the outer diameter of the central post 2.
  • Each step 3, 4 is also secured by a wide edge 6, at its outer radial end, to the slime 7, consisting of a plate plane parallel to the Z axis of the central pole 2, and having a lower portion 8, substantially rectangular with lower and upper edges substantially parallel to the low step 3, and secured to the edge of the wide edge 6 of the low step 3, and an upper part 9, substantially U-shaped returned, to upper edge substantially parallel to the high step 4, and secured to the edge of the wide edge 6 of the high step 4.
  • the assembly consisting of the central post 2, the two steps 3 and 4 and the stringer 7 is also secured to the other two posts, which are corner posts, contributing to the constitution of the corner posts of a hexagonal staircase, when mounting the plurality of modules 1 that includes this staircase, as also described below with reference to Figures 14a to 19 .
  • front corner post 10 is called the front corner post 10, and the other rear corner post 11, because they are integral, the first 10 at the front of the low step 3, the second 11 to the rear of the upper step 4, and both to the stringer 7. More specifically, the front corner post 10 is integral with the nose or front edge 12 of the low step 3 at its outer radial end and the wide edge 6 of this low step 3 at its front end, and the front corner post 10 is also secured to the lower portion 8 of the stringer 7, at the front end thereof.
  • the rear corner post 11 is integral with the rear edge 13 of the upper step 4 at its outer radial end, and the wide edge 6 of the upper step 4 at its rear end, and the rear corner post 11 is also secured to the upper portion 9 of the stringer 7 at the rear end thereof, at a small arcuate edge which intersects the other non-right vertex of the corresponding right triangle on the figure 2 for low walking 3 and on the figure 3 for high walking 4.
  • the three posts 2, 10 and 11 of each module 1 comprise identical sections of cylindrical metal tube of circular section, for example 380 mm in length, with an outer diameter of 48.6 mm and a thickness of 3, 5 mm.
  • the lower ends of the two posts 2 and 10 are located in the same plane perpendicular to the axes of the columns, this plane being horizontal in the use position and, possibly also storage, of the module 1.
  • the upper ends of the pipe sections of the Posts 2, 10 and 11 are in the same plane perpendicular to the axes of these poles.
  • Each post 2, 10, 11 comprises at its lower end a sleeve 14, 16, fixed to the lower end of the post by a rivet 15. In another example, the sleeve 14, 16 is welded to the rest of the post 2, 10 , 11.
  • the sleeve 14, 16 is welded to the rest of the post 2, 10, 11.
  • the sleeve 16 is arranged at the lower end of the post 11 illustrated in FIG. figure 5b .
  • the sleeve 14 is arranged at the lower end of each of the posts 2, 10 as illustrated in FIGS. Figures 5a and 5c .
  • the sleeve 16 of the post 11 is longer than the length of the sleeve 14.
  • the sleeve 14 has a length of 80 mm while the sleeve 16 has a length of 125 mm.
  • the sleeves 14 of the posts 2 and 10 are of substantially different length. For example, their length differs from 0.1 mm to 15 mm.
  • the sleeve 16 comprises a bayonet-shaped slot 17.
  • the light 17 comprises two parts 17a and 17c extending axially along the pole 11.
  • the axial portion 17a of the lumen 17 opens into the lower edge of the sleeve 16.
  • the two axial portions 17a and 17c are connected by an intermediate portion 17b perpendicular to these two parts 17a and 17c.
  • the shape of the light 17 conditions the movement required for the placement of the module 1 on the columns of the underlying module or the corner post columns described below.
  • the front corner post 10 comprises near its upper end a pin 66 projecting radially outwardly.
  • the pin 66 is adapted to cooperate with a light-like light 17 at the lower end of an angle post post as described below.
  • the lumen 17 may receive a pin-like pin 66 at the upper end of the corner post post 10 discussed below.
  • the sleeve 14 of the front corner post 10 constitutes a female lower end adapted to receive the male upper end of the rear corner post 11 of another module 1.
  • the sleeve 14 of the central pole 2 constitutes a female lower end adapted to receive the male upper end of the central pole 2 of another module 1.
  • the stringer 7 and the steps 3 and 4 are made of a metal or light alloy, for example aluminum, the posts 2, 10 and 11 being secured to the steps 3, 4 and the stringer 7 for example by welding, the stringer 7 being for example an aluminum sheet 3 mm thick and the steps 3 and 4 being made in a checkered aluminum sheet with a thickness of 3 to 4.5 mm.
  • a metal or light alloy for example aluminum
  • the posts 2, 10 and 11 being secured to the steps 3, 4 and the stringer 7 for example by welding
  • the stringer 7 being for example an aluminum sheet 3 mm thick
  • the steps 3 and 4 being made in a checkered aluminum sheet with a thickness of 3 to 4.5 mm.
  • a basic module 1 thus produced can have a weight limited to 8 kg, easy to transport, manipulate and position for the assembly of the staircase.
  • the parallel axes of the three posts 2, 10, 11 of each module 1 each pass through one respectively of the three vertices of an equilateral triangle, in a transverse sectional plane of the module 1, perpendicular to the axes of these columns 2, 10 11.
  • the assembly according to the invention of modular elements for producing a helical modular staircase according to the invention also comprises, in addition to modules 1 staircase with two steps 3, 4, at least one, and in general a plurality of guardrails as represented on the figure 6 .
  • This railing 18 comprises two uprights 19a and 19b tubular and parallel, vertical in position of use of the railing 18, of the same external and internal diameters, and therefore of the same thickness, for example of a thickness of 1.5. mm and an outer diameter of 30 mm, the largest 19a has a length of 1720 mm and the smallest a length of 1256 mm, the two uprights 19a and 19b being braced at the bottom by a cross member 20a.
  • the two uprights 19a and 19b are braced by two crosspieces 20b and 20c inclined parallel to each other, the upright 19a the longest down and the other 19b the shortest amount, the one of the crosspieces 20c connecting the upper ends of the two uprights 19a and 19b.
  • the two crosspieces 20b and 20c are tubular, with the same dimensions of internal and external diameters and thickness as the amounts.
  • each of the two uprights 19a and 19b supports, outwardly projecting outwards, a cylindrical sleeve 23a, 23b of circular section, the axes of the sleeves 23a and 23b being parallel to the amounts 19a and 19b.
  • the bottom rail 20a is a plate or plinth, having substantially the same shape as the stringer 7 of the module 1, so that the cross 20a is superimposed on the stringer 7 of the module 1 placed after the installation of the railing 18 during the assembly of the staircase.
  • each upright 19a, 19b comprises a holding member 52.
  • the holding member 52 reinforces the holding of the railing by bearing against the stringer 7.
  • Each holding member 52 in the form of a flange surrounding the upright 19a, 19b and comprising a free end folded at right angles.
  • the upright 19a comprises a plate 21a projecting radially.
  • the plate 21a includes an opening 21b provided to pass a post angle post as described below.
  • the opening has a notch 21c allowing the passage of a pin similar to the pin 66 located at the upper end of the corner post pole.
  • the upright 19a has another plate 22b projecting radially ending in an arc of center circle coincides with the center of the opening 21b.
  • the plate 22b serves as a guide and support railing 18 when it is assembled along a post angle post.
  • the upright 19b has a radially projecting hook 22c intended to abut against the upper end of the rear corner post 11 of a module 1, after rotation of the guard rail 18 around the post of angle post on which is assembled the amount 19a.
  • the position of the plate 21a, the plate 22b and the hook 22c along the uprights 19a or 19b and their shape make it easier to assemble the railing 18 with the other elements forming the staircase.
  • the railing 18 is made by assembling, for example by welding, its components which are all metallic, preferably of a metal or light alloy.
  • the set of modular elements according to the invention also comprises other modular elements which are angle post posts according to the Figures 7 to 8c .
  • a first 24a is a tubular rectilinear post, substantially of the same structure and dimensions as the front corner post 10 or the central post 2 of the module 1 with two steps 3 and 4, and having a female lower end and a male upper end which are compatible with respectively the male upper end of a foot jack 40 according to the figure 10 and the lower female end of the rear corner post 11 of the module 1.
  • a tip 14 'in the form of a sleeve which constitutes the lower end of the first post of corner post 24a.
  • the sleeve 14 ' may be of metal or light alloy, for example aluminum or steel.
  • the tubular body 25a of the first corner post post 24a comprises in the upper part an annular flange 28a, which forms a circumferential stop protruding radially outwards, to limit the sliding of the upright 19a of a railing 18 on this first corner post post 24a.
  • the second post of angle post 24b comprises, like the first post of angle post 24a, a tubular body 25b, the length of which is twice that of the first post 24a, so about 760 mm, comprising a male upper end analogous to the upper male end of the rear corner post 11, and has a side fastener 26b projecting in its upper part, and pierced with a hole 27b for a link articulated about an axis perpendicular to the longitudinal axis second post 24b on a free end 31c of a smooth 29c articulated on the third post 24c of the corner post of the figure 8b .
  • the second post 24b further comprises a lateral attachment 30b projecting in its median part, and comprising a latch 31b of the gravity type for a link articulated about an axis perpendicular to the longitudinal axis of the second post 24b on a free end 41b of a smooth articulated 29b on the base of the figure 12 as described below.
  • the second post 24b angle post also comprises an annular flange 28b, similar to the annular flange 28a of the first post 24a.
  • the first and second post uprights 24a and 24b have substantially the same structure and dimensions except that the second 24b is a double length of the first 24a.
  • the figure 8b represents a third post 24c of angle post, the structure and dimensions of which are substantially the same as for the second stud post 24b, except that the length of the third post 24c is triple that of the first post 24a , while its fastener 26c is at the same distance from its upper end as the fastener 26b of the upper end of the second post 24b, so that the various elements and components of the third post 24c are marked on the figure 8b by identical references to those identifying the same elements or components on the figure 8a but assigned an index "c" to distinguish them from similar elements and components identified by references assigned an index "a" on the figure 7 for the first post 24a and the index "b" for the post 24b of the figure 8a .
  • the third post 24c further comprises a smooth 29c, of tubular structure, articulated around the axis 30c on the tubular body 25c, substantially at the level of the attachment 26c but on the opposite side of the body 25c, and whose end free 31c is adapted to be removably connected to the fastener 26b of the second stud post 24b angle.
  • the figure 8c represents a fourth post 24d of angle post, whose elements and components identical or similar to those of the three columns previously described are marked by the same references assigned an index "d", the length of the fourth post 24d being the quadruple that of the first post 24a, and this fourth post 24d having the particularity of comprising in addition, relative to the other three, two pins 32d, projecting laterally on either side of the tubular body 25d in its lower half, and parallel to the axis of the tubular body 25d, these tenons 32d being able to engage each in a guardrail sleeve, such as a sleeve 23a or 23b of the railing 18 of the figure 6 , as described below for mounting the staircase, and so that the smooth 29d of the fourth corner post pole 24d can function, when mounted in inclined spacer between two corner post posts , additional safety rail added to the two rails 20b and 20c of a railing 18 mounted on the staircase prior to the fourth stud post 24d considered, as described below.
  • the fourth pole 24d comprises at its lower end a sleeve 16 similar to the sleeve 16 of the rear corner post 11 of a module 1 and with a bayonet slot 17.
  • the upper end of the fourth pole 24d comprises a pin 66 such as that of the upper end of the front corner post 10 of a module 1, unlike the other posts 24a, 24b and 24c which comprise a sleeve 14 ' but do not include bayonet light sleeves or pions.
  • the second and / or third pole 24b and 24c comprise a pin 66 such as that of the upper end of the fourth pole 24d.
  • the set of modular elements for the construction of a staircase according to the invention also comprises a closing railing 33, as shown in FIG. figure 9 , to prevent the passage beyond the top step of the last two-step stair module mounted at the upper end of the staircase, whose output then takes place laterally, over the slime of said last module to two steps.
  • the closing railing 33 of the figure 9 comprises two tubular uprights 34 of the same length, vertical in the position of use of the railing 33, and such that their lower ends are in the same horizontal plane.
  • the width of the railing 33 in its lower part is less than the width of the railing 33 in its upper part.
  • Each upright 34 extends non-rectilinearly.
  • Each amount 34 comprises three portions 34a, 34b, 34c.
  • the first portion 34a, located in the lower part, is rectilinear and extends along a first longitudinal axis.
  • the third portion 34c, located in the upper part is rectilinear and extends along a second longitudinal axis, parallel to the first longitudinal axis.
  • the second portion 34b extends obliquely between the first portion 34a and the third portion 34c.
  • the two uprights 34 are braced by three smooth 35a, 35b, 35c rectilinear and perpendicular to the two uprights 34, and rigidly connected, by each of their two ends to one respectively of the two uprights 34, a top 35a upper connecting the two ends upper of the two uprights 34, a median smooth 35b connecting the two uprights 34 substantially two-thirds of their height, and the third smooth 35c lower connecting the two uprights substantially one-third of their height.
  • the third smooth 35c is made in the form of a plate or plinth.
  • the third smooth 35c is superimposed on the module 1 after the installation of the railing 33 during assembly of the staircase.
  • the railing 33 thus has the form of a frame whose upper end is wider than the lower end, open between the lower ends of the two uprights 34.
  • the railing 33 also comprises two plates 36 projecting outwardly, each plate 36 being similar to the plate 21a of the amount 19a.
  • Each plate 36 is arranged on one respectively of the two uprights 34. These plates 36 are able to slide removably on the central posts 2 and the rear corner 11 of the last module 1 with two steps of the staircase.
  • each upright 34 supports a collar 38, of the type with two jaws pivoting relative to each other around each other. an axis substantially parallel to the axis of the upright 34 corresponding, the two jaws can close against each other by screwing, so that the collar 38 is adapted to be removably mounted one around the central upright and the another around a corner post of the staircase, or around a fourth stud post 24d mounted on a rear corner post 11 and in the vertical extension thereof on a module 1 of stairs of the stairs.
  • the set of modular elements according to the invention further comprises, as shown in FIG.
  • FIG 11 seven foot cylinders 40 independent, such as that of the figure 10 , as well as a trapezoidal base substantially horizontal 41, each of the two ends of the large base 42 as the small base 43 of the base 41, and the middle of the large base 42 are adapted to be equipped with one respectively seven foot jacks 40 analogous, the structure of a foot jack being schematically represented on the figure 10 .
  • Each foot jack 40 of a well-known structure, comprises a ground support plate 44, supporting a vertical threaded rod 45, on which is screwed a wing nut 46, with a stopping point 48 on the rod 45 which limits upward the range of adjustment of the height of the nut 46, on the fins 47 of which can bear the lower female ends of the front corner posts 10 and rear 11 of a module 1 with two steps or the lower female ends of the first, second, third and fourth corner posts 24a, 24b, 24c and 24d previously described, in order to compensate for a lack of flatness and / or horizontality of the ground surface where a staircase according to the invention must be mounted.
  • the jack 40 further comprises a cylindrical portion 45 '.
  • the cylindrical portion 45 ' surrounds the rod 45 in its lower part, close to the support plate 44.
  • the cylindrical portion 45' is therefore larger in diameter than the rod 45.
  • the end of the cylindrical portion 45 ' which is opposed to the nearest end of the backing plate 44 serves as a bearing surface to the inner portions corresponding to the narrowing between the lower female ends and the rest of the front and rear corner posts 10 and 11 a module 1 with two steps or the lower female ends of the first, second, third and fourth corner post columns 24a, 24b, 24c and 24d to take the loads from the assembly.
  • the small base 43 and the two inclined sides 49, which connect the small base 43 to the large base 42 are each of the same length which corresponds to the length of one side of the hexagonal section of the staircase.
  • the base 41 is made by assembling, for example by welding, rectilinear tubular sections which constitute, in this example, not only the two bases 42 and 43 and the two inclined sides 49 of the trapezoidal base 41, but also two spacers 50 each of which connects one respectively of the two ends of the small base 43 in the center of the large base 42.
  • a hinged rail 29b is further articulated between the large base 42 and one of the two inclined sides 49.
  • the rail 29b of tubular structure, is hinged at one end about an axis 41a arranged on one of the two inclined sides 49 of the base 41 and perpendicular to the axis of the jacks 40 when assembled with the base 41 thereon, and whose free end 41b is able to be articulated removably on the fastener 30b of the second pole 24b.
  • the figure 12 also illustrates the base 41, and a first step 62 and a support 60.
  • the support 60 is of triangular shape. Each side of the support 60 corresponds to the length of one side of the hexagonal section of the staircase.
  • the support 60 is made by assembling, for example by welding, rectilinear sections. These sections may for example be tubular, or rectangular.
  • the first step 62 is of triangular shape, complementary to the triangular shape of the support 60.
  • the first step 62 can be made in the form of a thin plate whose edges are bent at right angles to cover a part of the large base 42 and one side of the support 60.
  • the first step is for example made of metal or light alloy.
  • the figure 13 illustrates two steps prior to the first editing cycle described below.
  • a first step 62 and the support 60 are mounted on two jacks 40 and assembled to the base 41.
  • the support 60 is first mounted on the two jacks 40 and assembled to the base 41, then the first step 62 is assembled on the support 60 and the base 41.
  • the first step 62 is first assembled to the support 60, then the assembly formed by the first step 62 and the support 60 is mounted on the two cylinders 40 and assembled to the base 41.
  • the first step 62 thus defines the first of the six faces of the hexagonal horizontal cross section staircase to be mounted.
  • a first module 1 with two steps is mounted by its central post 2 on the foot jack 40 in the middle of the large base 42 of the horizontal base 41, and the two front corner posts 10 and Rear 11 of the module 1 are each mounted on one respectively of the two foot cylinders 40, thereby defining the second of the six faces of the hexagonal horizontal cross-section staircase to be mounted.
  • the first three-stage cycle is represented on the Figures 14a, 14b and 14c .
  • the first pole 24a of angle post is vertically mounted by fitting on the foot jack 40 at the end of the large base 42 of the base 41 towards which the module 1 of the staircase turns upward, and so that the first post 24a of angle upright delimits with the rear corner post 11 of the staircase module 1 the third face of the hexagonal staircase.
  • a guard rail 18 is mounted in this third face of the staircase.
  • the amount 19a of the guard rail 18 is slid along the first post 24a by passing the first post 24a in the opening 21b of the plate 21a.
  • a second module 2 with two steps is mounted by its central post 2 on the central post 2 of the module 1 mounted on the foot jack 40 in the middle of the large base 42 of the horizontal base 41, and the two poles d front angle 10 and rear 11 of the second module 1 are respectively mounted on the rear corner post 11 of the first module 1 and on the first post 24a, thus defining the third of the six faces of the hexagonal horizontal cross section staircase to rise.
  • the second post of angle post 24b is fitted on the foot jack 40 at the end closest to the small base 43 of the base 41, and the articulated rail 29b of the second post 24b is fixed in spacer between this second post 24b and the base 41 by connecting this smooth 29b with the fastener 41a of the base, in the fourth face of the hexagonal staircase.
  • a railing 18 is mounted in this fourth face of the staircase according to the same principle as that described in the second step of the first cycle.
  • the railing 18 is previously oriented so that the amount 19b is close to the central post 2. Then, the guard rail 18 is pivoted around the second post 24b to the rear post 11, until the hook 22c abuts against the rear post 11.
  • a third module 1 of steps is mounted by engaging its central post 2 on that of the second module 1, its front corner post 10 on the part of the upper male end of the rear corner post 11 of the second module 1 , and its rear corner post 11 on the part of the upper male end of the second post of angle post 24b protruding above the plate 21a of the guard rail 18.
  • the third post 24c of corner post of the figure 8b is mounted on the foot jack 40 at the other end of the small base 43 of the base 41, and the articulated arm 29c of the third post 24c of the corner post is mounted as a spacer between the second and third posts 24b and 24c of angle post by fixing its free end 31c to the fastener 26b of the second post 24b of angle post (see figure 8a ).
  • a third railing 18 is mounted in the fifth side face of the staircase defined by the second and third posts 24b, 24c angle post, according to the same principle as that described in the second step of the second cycle.
  • the third pole 24b comprises a pin 66
  • the railing 18 is previously oriented so that the amount 19b is close to the central post 2. Then, the railing 18 is pivoted around the third pole 24c to the rear post 11, until the hook 22c abuts against the rear post 11.
  • a fourth module 1 of steps is mounted by engaging its central post 2 on that of the third module 1, its post 10 front angle on the part of the upper male end of the rear corner post 11 of the third module 1 , and its rear corner post 11 is fitted on the part of the upper male end of the third column post 24c angle.
  • the fourth module 1 of steps is mounted on the third as the third was on the second, and the latter was on the first, by vertical stacking of its pole central 2 on that of the third module 1, its rear corner post 11 on the part of the upper male end of the third column post 24c which protrudes above the plate 21a of the third guard rail 18 , and the front corner post 10 on the part of the upper male end of the rear corner post 11 of the third module 1.
  • a fourth corner post 24d according to the figure 8c is mounted on the foot jack 40 at the second end of the large base 42 of the base 41, and its articulated arm 29d is mounted as an inclined spacer between the two posts 24c and 24d angle post, defining the sixth side face of the staircase, by fixing the free end 31d (see figure 8c ) of this smooth 29d on the attachment 26c of the third column post 24c angle.
  • a fourth railing 18 (see figure 17b ) is mounted according to the same principle as that described in the second step of the first cycle, and in the second step of the third cycle.
  • the fourth pole 24d comprising a pin 66
  • the railing 18 is previously oriented so that the amount 19b is close to the central post 2.
  • the railing 18 is pivoted around the second pole 24b to the rear post 11, until the hook 22c abuts against the rear post 11.
  • This fourth cycle ends at the third stage ( figure 17c ), by the installation of a fifth module 1 of steps.
  • the laying of the module 1 consists firstly in the engagement of the sleeve 16 of the post 11 with the male upper end of the fourth post 24d.
  • the pin 66 of the upper male end of the fourth pole 24d is thus housed in the axial portion 17a of the slot 17 of the sleeve 16 of the post 11. Then, the pin 66 cooperates with the intermediate portion 17b and moves along this intermediate part 17b.
  • the module 1 thus pivots around the fourth pole 24d, the pivoting movement being limited by the size of the intermediate portion 17b.
  • the sleeves 14 of the central and front posts 2, 10 are opposite the male ends respectively of the central columns 2 and rear 11 of the underlying module 1, that is to say of the fourth module 1.
  • the pin 66 finally cooperates with the axial portion 17c of the lumen 17 of the sleeve 16 of the post 11.
  • the front angle post 10 of the fifth module 1 then comes to slip on the portion of the male upper end of the post rear corner 11 of the fourth module 1 and the central post 2 is engangcher on the part of the upper male end of the central post 2 underlying.
  • each cycle is a repetition of the fourth cycle, with a level offset corresponding to the module 1 of steps added at each cycle, to make a second turn of the stairs, to above the first tower, the new corner post posts incorporated in the assembly being all identical to the fourth post 24d of the figure 8c .
  • the first step of each of these cycles is always setting up a fourth corner stud post 24d.
  • the pin 66 of the front corner post 10 of the underlying module 1 is housed in the slot 17 of the stud post 24d, and the pin 66 of the post 24d is housed in the light 17 of the rear corner post 11 overlying.
  • the second step concerns the installation of an additional railing 18, and the last step of each cycle always corresponds to the introduction of an additional module 1 of steps.
  • the first step concerns, in the same way as in the fourth cycle, the installation of a fourth post 24d of additional corner post, the second stage concerns the introduction of a module 1 of additional steps and the third step relates to the establishment of the closing railing 33, to allow the exit of the staircase at the last module 1 steps.
  • the spiral staircase is limited to 2 turns, the last step module 1 corresponding to the twelfth step module 1 installed.
  • each post 24d of angle post engages in the vertical sleeve 23a and 23b lateral projection of two guard rails 18 adjacent and underlying, previously mounted.
  • the rail 29d of each post 24d of corner post is fixed by its free end 31d to the corner post post 24d previously mounted in inclined spacer substantially parallel to the two inclined rails 20b and 20c of a guard rail 18 previously mounted and underlying, thereby acting as third inclined smooth, reinforcing the safety for users in the second tower of the stairs.
  • the front corner post 10 of a module 1 of steps is mounted on the rear corner post 11 of the module 1 mounted in the third stage of the previous cycle.
  • the closing railing 33 of the figure 9 is mounted behind the top step 4 of the last module 1 and along the rear edge of this upstand 4, and fitted by its plates 36 on the upper ends of the central posts 2 and rear angle 11 of the last module 1, and retained by one of its collars 38 around the central post 2 of the penultimate module 1 and the other collar 38 around the corner post post 24d supporting the rear corner post 11 of the last module 1.
  • the posts 24e are identical to the posts 24d.
  • the posts 24e are mounted by fitting on the upper male ends of the front and rear corner posts 10 11 of the eleventh, tenth, ninth, eighth and seventh modules 1, the rails 29d of these five posts 24e being fixed inclined between these posts 24th , to secure the access of the staircase to the last five modules 1 steps, and the posts 23a and 23b of the railings 18 are engaged in sleeves 32d of these posts 24e to stiffen the upper part of the stairs to lateral exit over the slime 7 of the last module 1 of steps.
  • these last five posts 24e are of shorter length than the other posts 24d constituting the staircase. More specifically, their upper end is shortened relative to the upper end of the other posts 24d. in addition, their upper end does not include a pin 66.
  • the last five poles 24d have a length of 1.3 m while the other poles 24d have a length of 1.52 m. The difference in height between these last five poles and the other posts 24d makes it easy to differentiate and identify the last five poles, useful for securing the use of the stairs.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)
EP18173589.5A 2017-05-22 2018-05-22 Treppenmodul für wendeltreppe mit sechseckigem querschnitt, anordnung mit mindestens einem solchen modul und treppe, die mindestens eine solche anordnung umfasst Active EP3406821B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1754501A FR3066516B1 (fr) 2017-05-22 2017-05-22 Module d'escalier pour escalier helicoidal de section hexagonale, ensemble avec au moins un tel module et escalier comportant au moins un tel ensemble
FR1760355A FR3066517B1 (fr) 2017-05-22 2017-11-03 Module d'escalier pour escalier helicoidal de section hexagonale, ensemble avec au moins un tel module et escalier comportant au moins un tel ensemble

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EP3406821A1 true EP3406821A1 (de) 2018-11-28
EP3406821B1 EP3406821B1 (de) 2020-04-01

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29721616U1 (de) * 1997-12-06 1999-04-08 Ammann oHG, 86830 Schwabmünchen Freitragende Treppe
US6108988A (en) * 1998-12-07 2000-08-29 Soft Play, L.L.C. Spiral climb in surrounding enclosure
CN2637618Y (zh) * 2003-04-30 2004-09-01 郑亚莉 组合式室内楼梯
FR2921398A1 (fr) * 2007-09-25 2009-03-27 Campenon Bernard Regions Snc Module pour la construction d'un escalier provisoire, escalier et procede d'installation d'un tel escalier
CN201460069U (zh) * 2009-06-26 2010-05-12 李金喜 旋转组合楼梯
KR101423736B1 (ko) * 2013-03-15 2014-08-01 주식회사 디케이에스코리아 비계용 수직지지대
WO2017191391A1 (fr) * 2016-05-02 2017-11-09 Entrepose Echafaudages Module pour réaliser un escalier de chantier tournant, ensemble comportant au moins un tel module et escalier de chantier comportant au moins un tel ensemble

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29721616U1 (de) * 1997-12-06 1999-04-08 Ammann oHG, 86830 Schwabmünchen Freitragende Treppe
US6108988A (en) * 1998-12-07 2000-08-29 Soft Play, L.L.C. Spiral climb in surrounding enclosure
CN2637618Y (zh) * 2003-04-30 2004-09-01 郑亚莉 组合式室内楼梯
FR2921398A1 (fr) * 2007-09-25 2009-03-27 Campenon Bernard Regions Snc Module pour la construction d'un escalier provisoire, escalier et procede d'installation d'un tel escalier
CN201460069U (zh) * 2009-06-26 2010-05-12 李金喜 旋转组合楼梯
KR101423736B1 (ko) * 2013-03-15 2014-08-01 주식회사 디케이에스코리아 비계용 수직지지대
WO2017191391A1 (fr) * 2016-05-02 2017-11-09 Entrepose Echafaudages Module pour réaliser un escalier de chantier tournant, ensemble comportant au moins un tel module et escalier de chantier comportant au moins un tel ensemble

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