EP3406821A1 - Staircase module for spiral staircase with hexagonal section, assembly with at least one such module and staircase comprising at least one such assembly - Google Patents

Staircase module for spiral staircase with hexagonal section, assembly with at least one such module and staircase comprising at least one such assembly 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
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
EP18173589.5A
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German (de)
French (fr)
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EP3406821B1 (en
Inventor
Fabrice Fay
Michel Gobert
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.)
Mills SA
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Mills SA
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Publication date
Priority claimed from FR1754501A external-priority patent/FR3066516B1/en
Application filed by Mills SA filed Critical Mills SA
Publication of EP3406821A1 publication Critical patent/EP3406821A1/en
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Publication of EP3406821B1 publication Critical patent/EP3406821B1/en
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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
    • E04F11/035—Stairways consisting of a plurality of assembled modular parts without further support
    • 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

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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Abstract

Le module (1) pour un escalier modulaire hélicoïdal hexagonal, à six montants d'angle verticaux autour d'un montant central vertical, comporte un poteau central (2) vertical et deux marches (3, 4) horizontales triangulaires, dont une basse et une haute, solidarisées au poteau central (2), à un limon (7) et à deux poteaux d'angle (10, 11) parallèles au poteau central (2), et dont l'un dit poteau d'angle avant (10) est solidaire du limon (7) et de la marche basse (3), et dont l'autre dit poteau d'angle arrière (11) est solidaire du limon (7) et de la marche haute (4), les trois poteaux (2, 10, 11) du module comportant chacun une extrémité femelle et une extrémité mâle aptes à recevoir une extrémité mâle et à être reçue dans une extrémité femelle des poteaux de module (1) identiques pour contribuer avec ces derniers à la constitution du montant central et des montants d'angle de l'escalier.

Figure imgaf001
The module (1) for a modular hexagonal spiral staircase, with six vertical corner uprights around a vertical central upright, comprises a vertical central post (2) and two horizontal triangular steps (3, 4), one of which is low and one high, secured to the central post (2), a stringer (7) and two corner posts (10, 11) parallel to the central post (2), and one of which said front corner post (10) ) is integral with the stringer (7) and the low step (3), and the other said rear corner post (11) is integral with the stringer (7) and the top step (4), the three poles (2, 10, 11) of the module each having a female end and a male end adapted to receive a male end and to be received in a female end of the identical module posts (1) to contribute with the latter to the constitution of the amount central and corner uprights of the stairs.
Figure imgaf001

Description

L'invention concerne le domaine des escaliers modulaires hélicoïdaux ou tournants, d'intérieur ou d'extérieur, permettant le déplacement de personnes entre une zone basse et une zone haute d'installation de l'escalier, qui n'est pas du type intégré ou associé à un échafaudage, et, d'une manière générale, ne constitue pas un poste de travail, ou n'est pas associé à un tel poste, mais permet seulement un accès depuis le sol, ou un niveau bas, pour desservir un seul niveau haut, ou inversement.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.

Plus particulièrement, l'invention se rapporte à un escalier modulaire hélicoïdal de section transversale horizontale hexagonale, qui peut être monté, par des personnes non professionnelles, à partir d'un ensemble d'éléments modulaires, l'ensemble comprenant notamment au moins un module d'escalier à deux marches, et de préférence une pluralité de tels modules identiques les uns aux autres, tous les éléments modulaires de l'ensemble permettant la construction de l'escalier étant suffisamment légers pour pouvoir être aisément manipulés par un personnel non spécialisé pour le montage d'un escalier modulaire hélicoïdal d'une structure simple et économique, par la mise en oeuvre d'un procédé de montage simple par cycles répétés.More particularly, 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.

L'escalier selon la présente invention ne comporte pas de moise ni de clavette à taper, comme pour la plupart des échafaudages, et son montage ne nécessite pas que le personnel de montage ait suivi une formation, sans que cela nuise à la sécurité, au cours du montage comme lors de l'utilisation de l'escalier hélicoïdal, qui n'est pas un escalier provisoire.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.

A cet effet, l'invention propose un module d'escalier pour un escalier modulaire hélicoïdal de section transversale horizontale hexagonale, délimitée par six montants d'angle verticaux autour d'un montant central vertical, ledit module comportant un poteau central d'axe sensiblement vertical et deux marches de forme sensiblement triangulaire, dont une marche basse et une marche haute, s'étendant dans des plans horizontaux perpendiculaires à l'axe du poteau central et radialement depuis ledit poteau central, auquel les marches sont chacune solidarisées par un bord étroit d'extrémité radiale interne, lesdites deux marches étant solidarisées chacune par un bord large d'extrémité radiale externe à un unique limon sous la forme d'une plaque sensiblement plane et parallèle à l'axe du poteau central, le limon présentant une partie basse et une partie haute solidarisées à la tranche du bord large respectivement de la marche basse et de la marche haute, et le module comprenant deux poteaux d'angle d'axes parallèles à l'axe du poteau central, de sorte que les extrémités supérieures des trois poteaux du module sont dans un même plan transversal perpendiculaire aux axes des trois poteaux du module, dont l'un des deux poteaux d'angle, dit poteau d'angle avant, est solidaire de la partie basse du limon à l'extrémité avant de ce dernier, du nez de la marche basse à son extrémité radiale externe, et du bord large de la marche basse, à son extrémité avant, et dont l'autre poteau d'angle, dit poteau d'angle arrière est solidaire de la partie haute du limon à l'extrémité arrière de ce dernier, du bord arrière de la marche haute à son extrémité radiale externe, et du bord large de la marche haute à son extrémité arrière, le poteau central et les deux poteaux d'angle du module comportant chacun une extrémité femelle et une extrémité mâle qui sont aptes respectivement à recevoir une extrémité mâle et à être reçue dans une extrémité femelle de poteaux analogues de modules identiques à deux marches, de sorte à contribuer avec lesdits poteaux analogues à la constitution dudit montant central et desdits montants d'angle de l'escalier, l'un au moins des trois poteaux du module présentant au moins un organe d'un dispositif de verrouillage, apte à coopérer avec au moins un autre organe dudit dispositif de verrouillage qui équipe un poteau d'un autre module d'escalier ou d'un poteau de montant d'angle de l'escalier pour verrouiller la liaison dudit module avec ledit autre module ou poteau de montant d'angle.For this purpose, 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 module, one of the two corner posts, said post front corner, is integral with the lower part of the silt at the front end of the latter, the nose of the low step at its outer radial end, and the wide edge of the low step, at its front end, and the other corner post, said rear corner post is secured to the upper part of the silt at the rear end of the latter, the rear edge of the high step at its outer radial end, and the broad edge of the walking high to his extr emitted back, the central post and the two corner posts of the module each having a female end and a male end which are respectively adapted to receive a male end and to be received in a female end of similar posts of identical modules with two steps , so as to contribute with said posts similar to the constitution of said central post and said corner posts of the staircase, at least one of the three posts of the module having at least one member of a locking device, adapted to cooperating with at least one other member of said locking device that equips a pole of another stair module or an angle post of the staircase to lock the connection of said module with said other module or post of corner post.

Avantageusement, dans une réalisation qui procure une grande résistance pour un poids limité, et d'une grande facilité de montage, le module d'escalier est tel que le poteau central et les deux poteaux d'angle sont trois poteaux tubulaires, solidarisés aux deux marches et au limon commun, et dont les extrémités inférieures sont constituées chacune par l'un respectivement de trois manchons, dont celui du poteau d'angle arrière est plus long que ceux de sensiblement même longueur des deux autres poteaux et présente une lumière en baïonnette s'ouvrant dans le bord inférieur dudit manchon, d'un dispositif de verrouillage correspondant à un pion radial sur l'extrémité supérieure du poteau d'angle avant ou d'un poteau de montant d'angle de l'escalier. En particulier, pour limiter le poids tout en favorisant un montage durable de l'escalier, le module est avantageusement tel que les trois poteaux dudit module sont en métal ou alliage léger et solidarisés aux marches et au limon qui sont dans le même métal ou alliage.Advantageously, in an embodiment that provides a high resistance for a limited weight, and a great ease of assembly, 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. In particular, to limit the weight while promoting a durable assembly 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.

De préférence, pour faciliter le montage des modules les uns sur les autres et sur les autres éléments modulaires de l'escalier, il est avantageux que le manchon du poteau d'angle arrière fasse saillie en-dessous du plan sensiblement horizontal perpendiculaire à l'axe de l'extrémité inférieure du poteau central et du poteau d'angle avant dont les manchons sont de hauteur sensiblement identique.Preferably, to facilitate the mounting of the modules on each other and on the other modular elements of the staircase, it is advantageous that 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.

Avantageusement également, pour assurer une bonne résistance au module d'escalier sans gêner une sortie latérale ou une entrée latérale à un utilisateur au sommet de l'escalier, le limon présente une partie basse sensiblement rectangulaire à bords inférieur et supérieur sensiblement parallèles à la marche basse, et une partie haute en forme sensiblement de U retourné, à bord supérieur sensiblement parallèle à la marche haute. Cette réalisation du limon permet de plus de présenter, à la liaison entre la partie basse du limon et la branche adjacente du U retourné de la partie haute de ce limon, une surface suffisamment grande pour l'affichage, par tout moyen approprié (collage, peinture ou autre marquage) d'instructions de montage.Advantageously also, to ensure good resistance to the stair module without hindering a side exit or side entrance to a user at the top of the staircase, 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.

Afin que l'escalier hélicoïdal de section hexagonale n'occupe qu'un encombrement limité, par exemple dans un cylindre de section circulaire de diamètre inférieur à 2 mètres, tout en permettant d'empiler des modules identiques les uns sur les autres de sorte que simultanément, les deux marches de chaque module présentent une surface de support ou d'appui confortable, les axes parallèles des trois poteaux du module passent chacun par l'un respectivement des trois sommets d'un triangle équilatéral dans un plan de coupe transversale du module perpendiculairement aux axes desdits poteaux, et chaque marche a une forme en plan sensiblement de triangle rectangle.So that 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.

L'invention concerne aussi, dans un deuxième temps, un ensemble d'éléments modulaires, pour réaliser l'escalier modulaire hélicoïdal de section transversale horizontale hexagonale délimitée par six montants d'angle verticaux autour d'un montant central vertical, l'ensemble comprenant une embase trapézoïdale pour la mise en place au sol des éléments modulaires, cet ensemble se caractérisant en ce qu'au moins un élément modulaire parmi lesdits éléments modulaires de l'ensemble est un module d'escalier à deux marches tel que présenté ci-dessus, au moins un deuxième élément modulaire parmi les éléments modulaires de l'ensemble étant un garde-corps comprenant deux montants verticaux tubulaires de longueur inégale, entretoisés, en partie basse, par une traverse et en partie haute par au moins une, mais de préférence deux, traverse(s) inclinée(s) formant lisse(s) de protection, le montant le plus long des deux montants de garde-corps supportant, en saillie latérale vers l'extérieur, une plaque en partie basse et chacun des deux montant supportant un manchon en saillie vers le haut en partie haute, qui sont parallèles au montant de garde-corps, ladite plaque étant apte à coulisser autour de l'extrémité supérieure du poteau d'angle arrière d'un module d'escalier ou sur un poteau d'un montant d'angle constituant un autre élément modulaire dudit ensemble, lesdits manchons étant aptes à recevoir des tenons latéraux de poteaux de montant d'angle de l'ensemble. Un tel garde-corps ainsi monté dans une face latérale de l'escalier hexagonal qui est délimitée par le poteau d'angle arrière sur lequel l'un de ses deux manchons est monté, et par le poteau de montant d'angle sur lequel l'autre de ses manchons est monté, permet d'empêcher la chute d'un utilisateur par-dessus le limon venant se positionner dans cette face latérale de l'escalier, lorsqu'un module d'escalier suivant a été monté sur celui dont le poteau d'angle arrière supporte la plaque du garde-corps.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 a post of a corner post constituting another modular element of said assembly, said sleeves being adapted to receive lateral posts of corner post posts of the assembly. 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.

En outre, le montant le plus court des deux montants de garde-corps supporte, en saillie latérale vers l'extérieur, un crochet en partie basse. Ce crochet facilite l'assemblage du garde-corps aux autres éléments modulaire et conditionne l'enchainement des étapes de montage des différents éléments formant l'escalier.In addition, the shorter amount of the two amounts of railing supports, projecting outwardly, a hook at the bottom. 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.

L'ensemble d'éléments modulaires selon l'invention comprend avantageusement de plus une pluralité de poteaux de montant d'angle comprenant :

  • un premier poteau, de sensiblement même structure et dimensions que le poteau d'angle avant du module d'escalier à deux marches, et ayant une extrémité mâle compatible avec ll'extrémité femelle du poteau d'angle arrière dudit module, mais avec, de plus, une collerette annulaire formant butée limitant le coulissement d'une plaque de garde-corps sur ledit premier poteau,
  • un deuxième poteau, de même structure que le premier poteau de montant d'angle, mais de hauteur double de celle dudit premier poteau de montant d'angle, et comprenant une attache en saillie latérale externe, apte à une liaison amovible avec une extrémité libre d'une lisse articulée par son autre extrémité à l'embase,
  • un troisième poteau, de même structure que le premier poteau de montant d'angle mais de hauteur triple de celle dudit premier poteau de montant d'angle, et
  • au moins un quatrième poteau, également sensibement de même structure que le premier poteau de montant d'angle, mais de hauteur quadruple de celle dudit premier poteau de montant d'angle, etles troisième et quatrième poteaux de montant d'angle ayant de plus une lisse rectiligne, articulée par une extrémité à pivotement autour d'un axe horizontal sur ledit poteau de montant d'angle, sensiblement à la longueur du premier poteau depuis son extrémité supérieure, et apte à être liée de manière amovible, par son autre extrémité, en entretoise inclinée, à ladite attache d'un poteau de montant d'angle voisin délimitant une même face de l'escalier hexagonal, et ledit au moins un quatrième poteau de montant d'angle ayant de plus, en saillie latérale de part et d'autre d'une portion dudit poteau dans sa moitié inférieure, deux tenons, parallèles audit quatrième poteau, et aptes à s'engager chacun dans un manchon de garde-corps, de sorte que ladite lisse en entretoise inclinée d'un quatrième poteau de montant d'angle est apte à faire fonction de lisse de sécurité supplémentaire s'ajoutant à la ou aux deux lisses inclinées d'un garde-corps préalablement monté sur l'escalier.
The set of modular elements according to the invention advantageously furthermore comprises a plurality of corner post posts comprising:
  • a first post, of substantially the same structure and dimensions as the front corner post of the two-step stair module, and having a male end compatible with the female end of the rear corner post of said module, but with, moreover, an annular collar forming a stop limiting the sliding of a guardrail plate on said first post,
  • a second post, of the same structure as the first post of corner post, but of double height of that of said first post of corner post, and comprising an external lateral projecting fastener, adapted for a removable connection with a free end a smooth articulated by its other end to the base,
  • a third post, of the same structure as the first post of corner post but of height triple that of said first post of corner post, and
  • at least one fourth post, also substantially of the same structure as the first post of corner post, but four times that of said first post of corner post, and the third and fourth posts of corner post having a further rectilinear smooth, articulated at one end to pivot about a horizontal axis on said post post, substantially the length of the first post from its upper end, and removably attachable at its other end, in inclined strut, to said fastener of a post of neighboring corner post delimiting the same face of the hexagonal staircase, and said at least one fourth post of corner post having, in lateral projection of side and side other of a portion of said post in its lower half, two posts, parallel to said fourth post, and able to engage each in a railing sleeve, so that said rail spacer inclined of a fourth post of corner post is able to act as additional safety rail adding to the one or both inclined smooth railing previously mounted on the stairs.

En outre, le deuxième et/ou le troisième poteau peut comprendre un pion d'un dispositif de verrouillage, apte à coopérer avec au moins une lumière dudit dispositif de verrouillage qui équipe un poteau d'un module d'escalier.In addition, 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.

Afin d'assurer également la sécurité des utilisateurs à l'extrémité supérieure de l'escalier hélicoïdal, l'ensemble d'éléments modulaires pour la construction de l'escalier comprend aussi un élément modulaire supplémentaire agencé en garde-corps de fermeture de l'escalier, comprenant deux montants de garde-corps tubulaires, et de même hauteur, entretoisés par au moins deux lisses rectilignes horizontales, rigidement liées, par chacune de leurs deux extrémités, à l'un respectivement des deux montants de garde-corps, dont une lisse supérieure raccordant les deux extrémités supérieures des deux montants de garde-corps, et au moins une lisse médiane, de sorte à former un cadre ouvert entre les extrémités inférieures de ces deux montants, ledit garde-corps de fermeture comportant également, en partie basse des montants et en saillie latérale vers l'extérieur, deux colliers liés chacun à l'un des deux montants, et aptes à être montés amoviblement l'un autour du montant central et l'autre autour d'un montant d'angle de l'escalier, en partie médiane des montants et en saillie latérale vers l'extérieur, deux plaques liées chacune à l'un des deux montants et d'axe parallèle à ce dernier, et aptes à coulisser de manière amovible sur les poteaux central et d'angle arrière d'un autre module d'escalier dudit ensemble.In order to also ensure the safety of the users at the upper end of the spiral staircase, 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 rear corner posts of another stair module of said assembly.

L'autre module d'escalier sur lequel le garde-corps de fermeture est monté par ses deux manchons est le dernier module à deux marches de l'escalier, dans le sens de la montée, c'est-à-dire le plus haut, la sortie de l'escalier ou son entrée, à l'extrémité supérieure de cet escalier, se faisant par-dessus le limon de ce dernier module d'escalier.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.

Pour assurer un bon montage horizontal des marches, en particulier des premiers modules d'escalier qui sont montés, et une excellente rigidité de l'escalier à sa base, il est avantageux que l'ensemble d'éléments modulaires selon l'invention comprenne également, comme éléments modulaires supplémentaires, sept vérins de pied, dont chacun est apte à régler en hauteur l'un respectivement des deux poteaux d'angle d'un premier module d'escalier à deux marches, ainsi que l'embase trapézoïdale sensiblement horizontale, dont la petite base et les deux côtés inclinés sont d'une même longueur correspondant à un côté de la section hexagonale de l'escalier, et réalisée par l'assemblage de tronçons rectilignes constituant au moins les deux bases et les deux côtés inclinés de l'embase trapézoïdale, qui est apte à recevoir un vérin de pied à chacun de ses quatre sommets, et apte à régler en hauteur des poteaux de montant d'angle délimitant trois faces adjacentes de la section transversale horizontale hexagonale de l'escalier modulaire hélicoïdal, un vérin de pied équipant le milieu de la grande base de l'embase.To ensure a good horizontal mounting of the steps, in particular the first stair modules which are mounted, and excellent rigidity of the staircase at its base, it is advantageous that 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.

L'invention concerne, dans un troisième temps, un escalier modulaire hélicoïdal de section transversale horizontale hexagonale, délimitée par six montants d'angle verticaux autour d'un montant central vertical, et comportant un ensemble d'éléments modulaires propre à l'invention et tel que défini ci-dessus, dont les éléments modulaires sont assemblés les uns aux autres.Thirdly, 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.

L'invention concerne, dans un quatrième temps, un procédé avantageux de montage d'un escalier modulaire hélicoïdal selon l'invention, ce procédé se caractérisant en ce qu'il comprend une succession de cycles comportant chacun trois étapes, dont la première est la disposition d'un poteau de montant d'angle, sur un vérin ou sur un autre module identique préalablement disposé, dont la deuxième étape consiste à monter un garde-corps, dont sa plaque coulisse autour du poteau de montant d'angle, puis par rotation autour dudit poteau de montant d'angle jusqu'à ce que le crochet vienne en butée contre le poteau d'angle arrière dudit module d'escalier, de sorte que le garde-corps s'étend dans ladite face adjacente de l'escalier hexagonal, de telle sorte que ledit poteau de montant d'angle délimite avec le garde-corps une face adjacente de l'escalier hexagonal, et dont la troisième étape est la disposition d'un module d'escalier à deux marches sur des vérins ou sur un module identique et un poteau de montant d'angle préalablement disposés, et tel que les deux poteaux d'angle dudit module d'escalier définissent une face de l'escalier de section transversale horizontale hexagonale.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.

L'avantage de ce procédé est qu'à chaque cycle, un garde-corps de protection est monté avant même que soit monté le module à deux marches dont le limon vient se placer dans la même face latérale de l'escalier que le garde-corps considéré.The advantage of this process is that every cycle a guardrail is mounted before the two-step module is mounted, the silt of which is placed in the same side of the staircase as the guard. body considered.

En outre, au cours de la deuxième étape, le garde-corps est au préalable orienté de sorte que le montant le plus long des deux montants du garde-corps est à proximité du poteau central, puis, le montant le plus long des deux montants du garde-corps est pivoté autour du poteau de montant d'angle sous-jacent jusqu'à ce que le crochet vienne en butée contre le poteau d'angle arrière dudit module d'escalier.In addition, during the second step, 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.

Le procédé comprend en outre une étape préalable au premier cycle qui consiste à placer sur l'embase une première marche.The method further comprises a step prior to the first cycle which consists in placing on the base a first step.

Ainsi, dans un exemple de réalisation, l'escalier hélicoïdal comprend douze modules à deux marches, soit vingt-cinq marches en tout, et s'élève sur une hauteur maximum d'environ 5 mètres.Thus, in one exemplary embodiment, 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.

Le procédé de montage d'un tel escalier est tel qu'à partir du quatrième cycle, tous les poteaux de montant d'angle montés dans la première étape des cycles sont identiques au quatrième poteau de montant d'angle, et chaque poteau de montant d'angle est monté sur et dans le prolongement d'un poteau d'angle avant d'un module d'escalier sous-jacent.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.

De même, à partir du sixième cycle, les deux tenons latéraux de chaque poteau de montant d'angle s'engagent dans les manchons verticaux en saillie latérale de deux garde-corps voisins sous-jacents préalablement montés, de sorte à rigidifier la structure de l'escalier.Likewise, starting from the sixth cycle, 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.

Enfin, à partir du sixième cycle, il est avantageux que la lisse de chaque poteau de montant d'angle soit fixée par son extrémité libre sur le poteau de montant d'angle précédemment monté en entretoise inclinée sensiblement parallèle à la ou aux lisse(s) inclinée(s) d'un garde-corps sous-jacent préalablement monté, de sorte à faire fonction de troisième lisse inclinée.Finally, from the sixth cycle, it is advantageous for the rail of each corner post post to be 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.

D'autres avantages et caractéristiques de l'invention ressortiront de la description donnée ci-dessous, à titre non limitatif, d'un exemple de réalisation décrit en référence aux dessins annexés sur lesquels :

  • les figures 1a et 1b sont des vues en perspective d'un module d'escalier à deux marches selon l'invention,
  • les figures 2 et 3 sont des vues en plan respectivement de la marche basse et de la marche haute du module des figures la et 1b,
  • la figure 4 est une vue en élévation latérale du module de la figure 1, du côté du limon dans la face externe de ce module, qui correspond à une face latérale de l'escalier hélicoïdal de section hexagonale selon l'invention,
  • les figures 5a, 5b et 5c sont des vues en élévation latérale respectivement des poteaux d'angle avant, d'angle arrière et central du module des figures 1a, 1b et 4,
  • la figure 6 est une vue en élévation latérale d'un garde-corps, qui est un élément modulaire d'un ensemble d'éléments modulaires pour réaliser un escalier hélicoïdal de section transversale horizontale hexagonale délimitée par six montants d'angle verticaux autour d'un montant central vertical selon l'invention,
  • la figure 7 est une vue en élévation latérale d'un premier poteau de montant d'angle dudit ensemble d'éléments modulaires selon l'invention, ce premier poteau de montant d'angle ayant sensiblement la même structure et les mêmes dimensions que le poteau central du module d'escalier à deux marches
  • la figure 8a est une vue analogue à la figure 7 pour un deuxième poteau de montant d'angle dudit ensemble d'éléments modulaires selon l'invention, ce deuxième poteau étant sensiblement de même structure que le premier poteau de montant d'angle de la figure 7, mais de hauteur double de celle dudit premier poteau de montant d'angle,
  • la figure 8b est une vue analogue aux figures 7 et 8a pour un troisième poteau de montant d'angle, sensiblement de même structure que le premier poteau de montant d'angle de la figure 7, mais de hauteur triple de celle dudit premier poteau de montant d'angle de la figure 7, et avec en plus une lisse articulée par une extrémité sur le troisième poteau,
  • la figure 8c est une vue analogue à la figure 8b pour un quatrième poteau de montant d'angle, appartenant à l'ensemble d'éléments modulaires selon l'invention, également sensiblement de même structure que le troisième poteau de montant d'angle de la figure 8b, mais de hauteur quadruple de celle du premier poteau de montant d'angle de la figure 7, et avec deux tenons en saillie latérale de part et d'autre du quatrième poteau de montant d'angle, ces tenons étant parallèles à ce quatrième poteau et aptes à être reçu chacun dans un manchon de garde-corps, comme ceux montés en partie haute sur les montants du garde-corps de la figure 6,
  • la figure 9 est une vue analogue à la figure 6 pour un garde-corps de fermeture, apte à se monter à l'extrémité supérieure d'un escalier selon l'invention, au niveau du bord arrière de la marche haute du dernier module d'escalier monté, pour border la sortie ou l'entrée haute de l'escalier, par-dessus le limon dudit dernier module d'escalier monté,
  • la figure 10 représente schématiquement en élévation latérale un vérin de pied, pour supporter et régler en hauteur une embase, une première marche ainsi que les poteaux d'angle du premier module d'escalier installé,
  • la figure 11 est une vue en perspective de sept vérins de pied indépendants selon la figure 10, dont cinq de ces sept vérins sont associés à une embase trapézoïdale dont les quatre sommets, aux extrémités de ses petite et grande bases, ainsi que le milieu de la grande base, sont équipés de cinq vérins de pied,
  • la figure 12 est une vue en perspective de l'embase équipée d'une première marche et d'un support,
  • la figure 13 est une vue en perspective du montage d'un premier module d'escalier sur l'embase de la figure 12, dans une étape préalable aux cycles de montage.
  • les figures 14a, 14b et 14c représentent successivement trois étapes d'un cycle simple du montage d'un deuxième module d'escalier selon l'invention, ce cycle se répétant très sensiblement et en partie pour tous les modules d'escalier utilisés, mais ne se répétant pas lors du montage du garde-corps de fermeture et des adaptations nécessaires pour aménager en toute sécurité la sortie ou entrée haute de l'escalier par-dessus le limon du dernier module d'escalier assemblé,
  • les figures 15a, 15b et 15c représentent les trois étapes successives du cycle de montage du troisième module d'escalier,
  • les figures 16a, 16b et 16c sont analogues aux figures 15a, 15b et 15c pour les trois étapes du cycle de montage du quatrième module d'escalier,
  • les figures 17a, 17b, 17c représentent de manière analogue les trois étapes des cycles de montage successifs respectivement du cinquième module d'escalier,
  • les figures 18a, 18b et 18c représentent les étapes successives du montage du dernier module de marches, et
  • la figure 19 est une figure analogue aux précédentes et représentant l'escalier dont le montage est terminé, dans une dernière étape au cours de laquelle des quatrième poteaux de montant d'angle sont installés.
Other advantages and characteristics of the invention will emerge from the description given below, without limitation, of an exemplary embodiment described with reference to the accompanying drawings in which:
  • the Figures 1a and 1b are perspective views of a staircase module with two steps according to the invention,
  • the Figures 2 and 3 are plan views respectively of the low and high steps of the module of Figures la and 1b,
  • the figure 4 is a side elevation view of the module from the figure 1 on the side of the stringer in the external face of this module, which corresponds to a lateral face of the spiral staircase of hexagonal section according to the invention,
  • the Figures 5a, 5b and 5c are side elevation views respectively of the front, rear corner and center corner posts of the Figures 1a, 1b and 4 ,
  • the figure 6 is a side elevation view of a railing, which is a modular element of a set of modular elements for making a helical staircase of hexagonal horizontal cross section delimited by six vertical corner posts around a central post vertical according to the invention,
  • the figure 7 is a side elevational view of a first corner post post of said set of modular elements according to the invention, said first post of angle post having substantially the same structure and dimensions as the central post of the module staircase with two steps
  • the figure 8a is a view similar to the figure 7 for a second post of angle post of said set of modular elements according to the invention, this second post being substantially of the same structure as the first column of corner post of the figure 7 but twice as high as that of said first post of corner post,
  • the figure 8b is a view similar to Figures 7 and 8a for a third corner post post, substantially of the same structure as the first corner post post of the figure 7 , but of triple height of that of said first corner post of the figure 7 , and in addition to a smooth articulated by one end on the third pole,
  • the figure 8c is a view similar to the figure 8b for a fourth post of corner post, belonging to the set of modular elements according to the invention, also substantially of the same structure as the third column of corner post of the figure 8b but four times the height of the first corner post of the figure 7 , and with two studs protruding laterally on either side of the fourth post of angle post, these tenons being parallel to the fourth post and able to be received each in a railing sleeve, such as those mounted in part high on the railing posts of the figure 6 ,
  • the figure 9 is a view similar to the figure 6 for a closing railing, adapted to be mounted at the upper end of a staircase according to the invention, at the rear edge of the high step of the last mounted stair module, to border the exit or the high entrance of the staircase, over the slime of said last mounted stair module,
  • the figure 10 schematically shows in side elevation a foot jack, for supporting and adjusting in height a base, a first step and the corner posts of the first stair module installed,
  • the figure 11 is a perspective view of seven independent foot cylinders according to the figure 10 , five of these seven cylinders are associated with a trapezoidal base whose four vertices, at the ends of its small and large bases, and the middle of the large base, are equipped with five foot jacks,
  • the figure 12 is a perspective view of the base equipped with a first step and a support,
  • the figure 13 is a perspective view of mounting a first stair module on the base of the figure 12 , in a step prior to the mounting cycles.
  • the Figures 14a, 14b and 14c represent successively three steps of a simple cycle of mounting a second stair module according to the invention, this cycle being repeated very substantially and in part for all the stair modules used, but not repeated during assembly the closing railing and the necessary adaptations to safely fit the exit or high entrance of the staircase over the stringer of the last assembled stair module,
  • the Figures 15a, 15b and 15c represent the three successive stages of the assembly cycle of the third stair module,
  • the figures 16a , 16b and 16c are similar to Figures 15a, 15b and 15c for the three stages of the assembly cycle of the fourth stair module,
  • the Figures 17a, 17b , 17c represent analogously the three stages of the successive mounting cycles respectively of the fifth stair module,
  • the figures 18a , 18b and 18c represent the successive stages of the assembly of the last step module, and
  • the figure 19 is a figure similar to the previous ones and representing the staircase whose assembly is completed, in a last step during which fourth posts of corner post are installed.

Pour réaliser un escalier modulaire hélicoïdal de section transversale horizontale hexagonale et délimité par six montants d'angle verticaux autour d'un montant central vertical, l'invention propose un module de base 1, tel que représenté sur les figures 1a, 1b et 4, à trois poteaux cylindriques tubulaires 2, 10 et 11, d'axes parallèles, supportant deux marches 3 et 4 dont les surfaces d'appui s'étendent dans des plans perpendiculaires aux axes des poteaux cylindriques tubulaires 2, 10 et 11, et un limon 7 bordant les marches 3 et 4 sur un côté correspondant à une des six faces latérales externes de l'escalier. L'un des poteaux est appelé poteau central 2, car il participe à la constitution du montant central vertical d'un escalier par l'empilage vertical et dans le prolongement les uns des autres des poteaux centraux 2 de tous les modules 1 utilisés pour le montage d'un escalier, comme décrit ci-après en référence aux figures 13 à 19.To achieve a modular helical staircase of hexagonal horizontal cross section and delimited by six vertical corner uprights around a vertical central upright, 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. 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 .

Les deux marches sont une marche basse 3 et une marche haute 4, chacune en forme de triangle rectangle, vue en plan, comme représentées respectivement sur les figures 2 et 3, et s'étendant chacune dans l'un respectivement de deux plans parallèles, radialement par rapport à l'axe Z, vertical en position d'utilisation, du poteau central 2, auquel chaque marche 3, 4 est solidarisée par son extrémité radiale interne au niveau d'un bord étroit 5 en arc de cercle correspondant au diamètre externe du poteau central 2. Chaque marche 3, 4 est aussi solidarisée par un bord large 6, à son extrémité radiale externe, au limon 7, constitué d'une plaque plane parallèle à l'axe Z du poteau central 2, et ayant une partie basse 8, sensiblement rectangulaire à bords inférieur et supérieur sensiblement parallèles à la marche basse 3, et solidarisée à la tranche du bord large 6 de la marche basse 3, et une partie haute 9, en forme sensiblement de U retourné, à bord supérieur sensiblement parallèle à la marche haute 4, et solidarisée à la tranche du bord large 6 de la marche haute 4.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.

L'ensemble constitué du poteau central 2, des deux marches 3 et 4 et du limon 7 est aussi solidarisé aux deux autres poteaux, qui sont des poteaux d'angle, contribuant à la constitution des montants d'angle d'un escalier hexagonal, lors du montage de la pluralité de modules 1 que comporte cet escalier, comme également décrit ci-après en référence aux figures 14a à 19.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 .

L'un de ces deux poteaux d'angle est appelé poteau d'angle avant 10, et l'autre poteau d'angle arrière 11, car ils sont solidaires, le premier 10 à l'avant de la marche basse 3, le second 11 à l'arrière de la marche haute 4, et tous les deux au limon 7. Plus précisément, le poteau d'angle avant 10 est solidaire du nez ou bord avant 12 de la marche basse 3 à son extrémité radiale externe ainsi que du bord large 6 de cette marche basse 3 à son extrémité avant, et ce poteau d'angle avant 10 est également solidaire de la partie basse 8 du limon 7, à l'extrémité avant de ce dernier. Le poteau d'angle arrière 11 est solidaire du bord arrière 13 de la marche haute 4 à son extrémité radiale externe, ainsi que du bord large 6 de cette marche haute 4 à son extrémité arrière, et ce poteau d'angle arrière 11 est également solidaire de la partie haute 9 du limon 7 à l'extrémité arrière de ce dernier, au niveau d'un petit bord en arc de cercle qui coupe l'autre sommet non droit du triangle rectangle correspondant sur la figure 2 pour la marche basse 3 et sur la figure 3 pour la marche haute 4.One of these two corner posts 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.

Les trois poteaux 2, 10 et 11 de chaque module 1 comprennent des tronçons identiques de tube métallique cylindrique de section circulaire, par exemple de 380 mm de longueur, d'un diamètre externe de 48,6 mm et d'une épaisseur de 3,5 mm. Les extrémités inférieures des deux poteaux 2 et 10 sont situées dans un même plan perpendiculaire aux axes des poteaux, ce plan étant horizontal en position d'utilisation et, éventuellement, aussi de stockage, du module 1. Les extrémités supérieures des tronçons de tube des poteaux 2, 10 et 11 sont dans un même plan perpendiculaire aux axes de ces poteaux. Chaque poteau 2, 10, 11 comprend à son extrémité inférieure un manchon 14, 16, fixé à l'extrémité inférieure du poteau par un rivet 15. Selon un autre exemple, le manchon 14, 16 est soudé au reste du poteau 2, 10, 11. Selon un autre exemple, le manchon 14, 16 est soudé au reste du poteau 2, 10, 11. Le manchon 16 est agencé à l'extrémité inférieure du poteau 11 illustré à la figure 5b. Le manchon 14 est agencé à l'extrémité inférieure de chacun des poteaux 2, 10 tel qu'illustré aux figures 5a et 5c.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. In another example, 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 .

Le manchon 16 du poteau 11 est de longueur supérieure à la longueur du manchon 14. Par exemple, le manchon 14 a une longueur de 80 mm alors que le manchon 16 a une longueur de 125 mm. Alternativement, les manchons 14 des poteaux 2 et 10 sont de longueur sensiblement différente. Par exemple, leur longueur diffère de 0,1 mm à 15 mm.
En outre, le manchon 16 comprend une lumière 17, en forme de baïonnette. La lumière 17 comprend deux parties 17a et 17c s'étendant axialement le long du poteau 11. La partie axiale 17a de la lumière 17 débouche dans le bord inférieur du manchon 16. Les deux parties axiales 17a et 17c sont reliées par une partie intermédiaire 17b perpendiculaire à ces deux parties 17a et 17c. La forme de la lumière 17 conditionne le mouvement requis pour la mise en place du module 1 sur les poteaux du module sous-jacent ou les poteaux de montant d'angle décrit ci-aprèsThe sleeve 16 of the post 11 is longer than the length of the sleeve 14. For example, the sleeve 14 has a length of 80 mm while the sleeve 16 has a length of 125 mm. Alternatively, 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.
In addition, 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.

Le poteau d'angle avant 10 comprend à proximité de son extrémité supérieure un pion 66 en saillie radiale vers l'extérieur. Le pion 66 est apte à coopérer avec une lumière semblable à la lumière 17 à l'extrémité inférieure d'un poteau de montant d'angle tel que décrit ci-après.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.

La lumière 17 peut recevoir un pion analogue au pion 66 à l'extrémité supérieure du poteau de montant d'angle 10 évoqué ci-dessous.The lumen 17 may receive a pin-like pin 66 at the upper end of the corner post post 10 discussed below.

Le manchon 14 du poteau d'angle avant 10 constitue une extrémité inférieure femelle apte à recevoir l'extrémité supérieure mâle du poteau d'angle arrière 11 d'un autre module 1.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.

Le manchon 14 du poteau central 2 constitue une extrémité inférieure femelle apte à recevoir l'extrémité supérieure mâle du poteau central 2 d'un autre 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.

Le limon 7 et les marches 3 et 4 sont réalisés en un métal ou alliage léger, par exemple en aluminium, les poteaux 2, 10 et 11 étant solidarisés aux marches 3, 4 et au limon 7 par exemple par soudage, le limon 7 étant par exemple une tôle d'aluminium de 3 mm d'épaisseur et les marches 3 et 4 étant réalisées dans une tôle à damier d'aluminium d'une épaisseur de 3 à 4,5 mm.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.

Un module de base 1 ainsi réalisé peut avoir un poids limité à 8 kg, facile à transporter, manipuler et positionner pour le montage de l'escalier.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.

Les axes parallèles des trois poteaux 2, 10, 11 de chaque module 1 passent chacun par l'un respectivement des trois sommets d'un triangle équilatéral, dans un plan de coupe transversale du module 1, perpendiculairement aux axes de ces poteaux 2, 10, 11. L'ensemble selon l'invention d'éléments modulaires pour réaliser un escalier modulaire hélicoïdal conforme à l'invention comprend également, en plus des modules 1 d'escalier à deux marches 3, 4, au moins un, et en général une pluralité, de garde-corps tels que représentés sur la figure 6.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 .

Ce garde-corps 18 comprend deux montants 19a et 19b tubulaires et parallèles, verticaux en position d'utilisation du garde-corps 18, de mêmes diamètres externe et interne, et donc de même épaisseur, par exemple d'une épaisseur de 1, 5 mm et d'un diamètre externe de 30 mm, dont le plus grand 19a a une longueur de 1720 mm et le plus petit une longueur de 1256 mm, les deux montants 19a et 19b étant entretoisés, en partie basse, par une traverse 20a. En partie haute, les deux montants 19a et 19b sont entretoisés par deux traverses 20b et 20c inclinées parallèlement l'une à l'autre, du montant 19a le plus long vers le bas et vers l'autre montant 19b le plus court, l'une des traverses 20c reliant les extrémités supérieures des deux montants 19a et 19b. Les deux traverses 20b et 20c sont tubulaires, avec les mêmes dimensions de diamètres interne et externe et d'épaisseur que les montants. A un niveau légèrement inférieur à celui de la traverse supérieure 20c, chacun des deux montants 19a et 19b supporte, en saillie latérale vers l'extérieur, un manchon 23a, 23b cylindrique de section circulaire, les axes des manchons 23a et 23b étant parallèles aux montants 19a et 19b.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. In the upper part, 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. At a slightly lower level than that of the upper cross member 20c, 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.

La traverse inférieure 20a est une plaque ou plinthe, ayant sensiblement la même forme que le limon 7 du module 1, de sorte que la traverse 20a se superpose au limon 7 du module 1 posé après la pose du garde-corps 18 lors de l'assemblage de l'escalier.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.

En outre, à un niveau légèrement inférieur à la traverse 20a, chaque montant 19a, 19b comprend un élément de maintien 52. L'élément de maintien 52 renforce la tenue du garde-corps par appui contre le limon 7. Chaque élément de maintien 52 a la forme d'une collerette entourant le montant 19a, 19b et comprenant une extrémité libre repliée en équerre.In addition, at a slightly lower level than the crossbar 20a, 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.

A un niveau inférieur à celui de la traverse inférieure 20a, le montant 19a comprend une plaque 21a en saillie radiale. La plaque 21a comprend une ouverture 21b prévue pour laisser passer un poteau de montant d'angle tel décrit ci-après. En outre, l'ouverture présente une encoche 21c permettant le passage d'un pion analogue au pion 66 situé à l'extrémité supérieure du poteau de montant d'angle.At a level lower than that of the lower cross member 20a, 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. In in addition, 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.

A l'extrémité inférieure, le montant 19a présente une autre plaque 22b en saillie radiale se terminant par un arc de cercle de centre confondu avec le centre de l'ouverture 21b. La plaque 22b sert de guide et d'appui au garde-corps 18 lorsque celui-ci est assemblé le long d'un poteau de montant d'angle.At the lower end, 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.

A l'extrémité inférieure, le montant 19b présente un crochet 22c en saillie radiale prévu pour venir en butée contre l'extrémité supérieure du poteau d'angle arrière 11 d'un module 1, après rotation du garde-corps 18 autour du poteau de montant d'angle sur lequel est assemblé le montant 19a.At the lower end, 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.

La position de la plaque 21a, de la plaque 22b et du crochet 22c le long des montants 19a ou 19b et leur forme permettent de faciliter l'assemblage du garde-corps 18 avec les autres éléments formant l'escalier.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.

Le garde-corps 18 est réalisé par assemblage, par exemple par soudage, de ses composants qui sont tous métalliques, de préférence en un métal ou alliage léger.The railing 18 is made by assembling, for example by welding, its components which are all metallic, preferably of a metal or light alloy.

L'ensemble d'éléments modulaires selon l'invention comprend également d'autres éléments modulaires qui sont des poteaux de montant d'angle selon les figures 7 à 8c.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 .

Parmi la pluralité de poteaux de montant d'angle de l'ensemble d'éléments modulaires selon l'invention, un premier 24a, représenté sur la figure 7, est un poteau rectiligne tubulaire, sensiblement de même structure et dimensions que le poteau d'angle avant 10 ou du poteau central 2 du module 1 à deux marches 3 et 4, et ayant une extrémité inférieure femelle et une extrémité supérieure mâle qui sont compatibles avec respectivement l'extrémité supérieure mâle d'un vérin de pied 40 selon la figure 10 et l'extrémité inférieure femelle du poteau d'angle arrière 11 du module 1. On retrouve donc un embout 14' sous la forme d'un manchon qui constitue l'extrémité inférieure du premier poteau de montant d'angle 24a. Le manchon 14' peut être en métal ou alliage léger, par exemple aluminium ou acier.Among the plurality of corner post columns of the set of modular elements according to the invention, a first 24a, shown on the figure 7 , 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. There is therefore 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.

Le corps tubulaire 25a du premier poteau 24a de montant d'angle comprend en partie supérieure une collerette annulaire 28a, qui forme une butée périphérique en saillie radiale vers l'extérieur, pour limiter le coulissement du montant 19a d'un garde-corps 18 sur ce premier poteau 24a de montant d'angle.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.

Le deuxième poteau 24b de montant d'angle comprend, comme le premier poteau 24a de montant d'angle, un corps tubulaire 25b, dont la longueur est le double de celle du premier poteau 24a, donc environ 760 mm, comprenant une extrémité supérieure mâle analogue à l'extrémité supérieure mâle du poteau d'angle arrière 11, et présente une attache latérale 26b en saillie dans sa partie haute, et percée d'un trou 27b pour une liaison articulée autour d'un axe perpendiculaire à l'axe longitudinal du deuxième poteau 24b sur une extrémité libre 31c d'une lisse 29c articulée sur le troisième poteau 24c de montant d'angle de la figure 8b. Le deuxième poteau 24b comprend en outre une attache latérale 30b en saillie dans sa partie médiane, et comprenant un verrou 31b du type à gravité pour une liaison articulée autour d'un axe perpendiculaire à l'axe longitudinal du deuxième poteau 24b sur une extrémité libre 41b d'une lisse 29b articulée sur l'embase de la figure 12, comme décrit ci-après. Le deuxième poteau 24b de montant d'angle comprend également une collerette annulaire 28b, analogue à la collerette annulaire 28a du premier poteau 24a. Ainsi, le premier et le deuxième poteaux 24a et 24b de montant d'angle ont sensiblement la même structure et les mêmes dimensions sauf que le deuxième 24b est d'une longueur double du premier 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. Thus, 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.

La figure 8b représente un troisième poteau 24c de montant d'angle, dont la structure et les dimensions sont sensiblement les mêmes que pour le deuxième poteau 24b de montant d'angle, sauf que la longueur du troisième poteau 24c est le triple de celle du premier poteau 24a, alors que son attache 26c est à la même distance de son extrémité supérieure que l'attache 26b de l'extrémité supérieure du deuxième poteau 24b, de sorte que les différents éléments et composants du troisième poteau 24c sont repérés sur la figure 8b par des références identiques à celles repérant les mêmes éléments ou composants sur la figure 8a mais affectées d'un indice "c" pour les distinguer des éléments et composants analogues repérés par des références affectées d'un indice "a" sur la figure 7 pour le premier poteau 24a et de l'indice "b" pour le poteau 24b de la figure 8a. Le troisième poteau 24c comprend de plus une lisse 29c, de structure tubulaire, articulée autour de l'axe 30c sur le corps tubulaire 25c, sensiblement au niveau de l'attache 26c mais sur le côté opposé du corps 25c, et dont l'extrémité libre 31c est apte à être raccordée de façon amovible à l'attache 26b du deuxième poteau 24b de montant d'angle.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.

La figure 8c représente un quatrième poteau 24d de montant d'angle, dont les éléments et composants identiques ou analogues à ceux des trois poteaux précédemment décrits sont repérés par les mêmes références affectées d'un indice "d", la longueur du quatrième poteau 24d étant le quadruple de celle du premier poteau 24a, et ce quatrième poteau 24d ayant la particularité de comporter en plus, par rapport aux trois autres, deux tenons 32d, en saillie latérale de part et d'autre du corps tubulaire 25d dans sa moitié inférieure, et parallèles à l'axe du corps tubulaire 25d, ces tenons 32d étant aptes à s'engager chacun dans un manchon de garde-corps, tel qu'un manchon 23a ou 23b du garde-corps 18 de la figure 6, comme décrit ci-dessous pour le montage de l'escalier, et de sorte que la lisse 29d du quatrième poteau 24d de montant d'angle puisse faire fonction, lorsqu'elle est montée en entretoise inclinée entre deux poteaux de montant d'angle, de lisse de sécurité supplémentaire s'ajoutant aux deux lisses 20b et 20c d'un garde-corps 18 monté sur l'escalier préalablement au quatrième poteau 24d de montant d'angle considéré, comme décrit ci-dessous.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.

En outre, le quatrième poteau 24d comprend à son extrémité inférieure un manchon 16 analogue au manchon 16 du poteau d'angle arrière 11 d'un module 1 et avec une lumière 17 en baïonnette. L'extrémité supérieure du quatrième poteau 24d comprend un pion 66 tel que celui de l'extrémité supérieure du poteau d'angle avant 10 d'un module 1, à la différence des autres poteaux 24a, 24b et 24c qui comprennent un manchon 14' mais ne comprennent ni manchon à lumière en baïonnette ni pion.In addition, 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.

Alternativement, le deuxième et/ou le troisième poteau 24b et 24c comprennent un pion 66 tel que celui tel que celui de l'extrémité supérieure du quatrième poteau 24d.Alternatively, 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.

L'ensemble d'éléments modulaires pour la construction d'un escalier selon l'invention comprend encore un garde-corps de fermeture 33, tel que représenté sur la figure 9, pour empêcher le passage au-delà de la marche haute du dernier module d'escalier à deux marches monté à l'extrémité supérieure de l'escalier, dont la sortie s'effectue alors latéralement, par-dessus le limon dudit dernier module à deux marches.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.

Le garde-corps de fermeture 33 de la figure 9 comprend deux montants 34 tubulaires de même longueur, verticaux en position d'utilisation du garde-corps 33, et tels que leurs extrémités inférieures sont dans un même plan horizontal. La largeur du garde-corps 33 dans sa partie inférieure est inférieure à la largeur du garde-corps 33 dans sa partie supérieure. Chaque montant 34 s'étend de façon non rectiligne. Chaque montant 34 comprend trois portions 34a, 34b, 34c. La première portion 34a, située en partie inférieure, est rectiligne et s'étend selon un premier axe longitudinal. La troisième portion 34c, située en partie supérieure, est rectiligne et s'étend selon un deuxième axe longitudinal, parallèle au premier axe longitudinal. La seconde portion 34b s'étend de façon oblique entre la première portion 34a et la troisième portion 34c. Les deux montants 34 sont entretoisés par trois lisses 35a, 35b, 35c rectilignes et perpendiculaires aux deux montants 34, et rigidement liées, par chacune de leurs deux extrémités à l'un respectivement des deux montants 34, une lisse 35a supérieure raccordant les deux extrémités supérieures des deux montants 34, une lisse 35b médiane raccordant les deux montants 34 sensiblement aux deux tiers de leur hauteur, et la troisième lisse 35c inférieure raccordant les deux montants sensiblement au tiers de leur hauteur. La troisième lisse 35c est réalisée sous la forme d'une plaque ou plinthe. La troisième lisse 35c se superpose au module 1 après la pose du garde-corps 33 lors de l'assemblage de l'escalier. Plus précisément la troisième lisse 35c se superpose à l'extrémité arrière 13 de la marche haute 4. Le garde-corps 33 a ainsi la forme d'un cadre dont l'extrémité supérieure est plus large que l'extrémité inférieure, ouvert entre les extrémités inférieures des deux montants 34. En partie médiane des deux montants 34, en dessous de la traverse inférieure, le garde-corps 33 comporte également deux plaques 36 en saillie latérale vers l'extérieur, chaque plaque 36 étant semblable à la plaque 21a du montant 19a. Chaque plaque 36 est agencée sur l'un respectivement des deux montants 34. Ces plaques 36 sont aptes à coulisser de manière amovible sur les poteaux central 2 et d'angle arrière 11 du dernier module 1 à deux marches de l'escalier. En partie basse de chacun des deux montants 34, et en saillie latérale vers l'extérieur et vers l'arrière, chaque montant 34 supporte un collier 38, du type à deux mâchoires pivotantes l'une par rapport à l'autre autour d'un axe sensiblement parallèle à l'axe du montant 34 correspondant, les deux mâchoires pouvant se refermer l'une contre l'autre par vissage, de sorte que le collier 38 soit apte à être monté amoviblement l'un autour du montant central et l'autre autour d'un montant d'angle de l'escalier, ou autour d'un quatrième poteau 24d de montant d'angle monté sur un poteau d'angle arrière 11 et dans le prolongement vertical de ce dernier sur un module 1 de marches de l'escalier. L'ensemble d'éléments modulaires selon l'invention comprend encore, comme représenté sur la figure 11, sept vérins de pied 40 indépendants, tel que celui de la figure 10, ainsi qu'une embase trapézoïdale sensiblement horizontale 41, dont chacune des deux extrémités de la grande base 42 comme de la petite base 43 de l'embase 41, ainsi que le milieu de la grande base 42 sont aptes à être équipés de l'un respectivement des sept vérins de pied 40 analogues, la structure d'un vérin de pied étant schématiquement représentée sur la figure 10. Chaque vérin de pied 40, d'une structure bien connue, comprend une plaque 44 d'appui au sol, supportant une tige 45 filetée verticale, sur laquelle est vissé un écrou 46 à ailettes 47, avec un point d'arrêt 48 sur la tige 45 qui limite vers le haut la plage de réglage en hauteur de l'écrou 46, sur les ailettes 47 duquel peuvent venir en appui les extrémités inférieures femelles des poteaux d'angle avant 10 et arrière 11 d'un module 1 à deux marches ou les extrémités inférieures femelles des premier, deuxième, troisième et quatrième poteaux de montant d'angle 24a, 24b, 24c et 24d précédemment décrits, afin de compenser un défaut de planéité et/ou d'horizontalité de la surface du sol où un escalier selon l'invention doit être monté. Le vérin 40 comprend en outre une partie cylindrique 45'. La partie cylindrique 45' entoure la tige 45 dans sa partie basse, à proximité de la plaque d'appui 44. La partie cylindrique 45' est donc de plus grand diamètre que la tige 45. En outre, l'extrémité de la partie cylindrique 45' qui est opposée à l'extrémité la plus proche de la plaque d'appui 44 sert de surface d'appui aux parties intérieures correspondant au rétrécissement situé entre les extrémités inférieures femelles et le reste des poteaux d'angle avant 10 et arrière 11 d'un module 1 à deux marches ou les extrémités inférieures femelles des premier, deuxième, troisième et quatrième poteaux de montant d'angle 24a, 24b, 24c et 24d afin de reprendre les charges issues de l'assemblage. Sur l'embase 41, la petite base 43 et les deux côtés inclinés 49, qui relient la petite base 43 à la grande base 42, sont chacun d'une même longueur qui correspond à la longueur d'un côté de la section hexagonale de l'escalier. L'embase 41 est réalisée par assemblage, par exemple par soudage, de tronçons tubulaires rectilignes qui constituent, dans cet exemple, non seulement les deux bases 42 et 43 et les deux côtés inclinés 49 de l'embase 41 trapézoïdale, mais également deux entretoises 50 dont chacune relie l'une respectivement des deux extrémités de la petite base 43 au centre de la grande base 42.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. More specifically, the third rail 35c is superimposed on the rear end 13 of the high step 4. 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. In the middle part of the two uprights 34, below the lower rail, 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. In the lower part of each of the two uprights 34, and projecting outward and rearwardly, 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. figure 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. In addition, 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. On the base 41, 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.

Une lisse articulée 29b est en outre articulée entre la grande base 42 et un des deux côtés inclinés 49. La lisse 29b, de structure tubulaire, est articulée par une extrémité autour d'un axe 41a agencé sur l'un des deux côtés incliné 49 de l'embase 41 et perpendiculaire à l'axe des vérins 40 lorsque assemblés avec l'embase 41 sur celle-ci, et dont l'extrémité libre 41b est apte à être articulée de façon amovible sur l'attache 30b du deuxième poteau 24b.
La figure 12 illustre également l'embase 41, ainsi qu'une première marche 62 et un support 60.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.

Le support 60 est de forme triangulaire. Chaque côté du support 60 correspond à la longueur d'un côté de la section hexagonale de l'escalier. Le support 60 est réalisé par assemblage, par exemple par soudage, de tronçons rectilignes. Ces tronçons peuvent par exemple être tubulaires, ou rectangulaires.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.

La première marche 62 est de forme triangulaire, complémentaire à la forme triangulaire du support 60. La première marche 62 peut être réalisée sous la forme d'une plaque mince dont les bords sont repliés à angle droit pour venir recouvrir une partie de la grande base 42 et un coté du support 60. La première marche est par exemple réalisée en métal ou alliage léger.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.

Le procédé de montage d'un escalier est décrit ci-après en référence aux figures 13 à 19.The method of mounting a staircase is described below with reference to Figures 13 to 19 .

La figure 13 illustre deux étapes préalables au premier cycle de montage décrit ci-après.The figure 13 illustrates two steps prior to the first editing cycle described below.

Dans une première étape préalable, une première marche 62 et le support 60 sont montés sur deux vérins 40 et assemblés à l'embase 41. Par exemple, le support 60 est d'abord monté sur les deux vérins 40 et assemblé à l'embase 41, puis la première marche 62 est assemblée sur le support 60 et l'embase 41. Alternativement, la première marche 62 est d'abord assemblée au support 60, puis l'ensemble formé de la première marche 62 et du support 60 est monté sur les deux vérins 40 et assemblé à l'embase 41. La première marche 62 définit ainsi la première des six faces de l'escalier de section transversale horizontale hexagonale à monter.In a first preliminary step, a first step 62 and the support 60 are mounted on two jacks 40 and assembled to the base 41. For example, 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. Alternatively, 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.

Dans une deuxième étape préalable, un premier module 1 à deux marches est monté par son poteau central 2 sur le vérin de pied 40 au milieu de la grande base 42 de l'embase horizontale 41, et les deux poteaux d'angle avant 10 et arrière 11 du module 1 sont chacun montés sur l'un respectivement des deux vérins de pied 40, en définissant ainsi la deuxième des six faces de l'escalier de section transversale horizontale hexagonale à monter.In a second preliminary step, 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.

Le premier cycle de trois étapes est représenté sur les figures 14a, 14b et 14c. A la première étape du premier cycle (figure 14a), le premier poteau 24a de montant d'angle est monté verticalement par emmanchement sur le vérin de pied 40 à l'extrémité de la grande base 42 de l'embase 41 vers laquelle le module 1 de l'escalier tourne en montant, et de sorte que le premier poteau 24a de montant d'angle délimite avec le poteau d'angle arrière 11 du module 1 d'escalier la troisième face de l'escalier hexagonal.The first three-stage cycle is represented on the Figures 14a, 14b and 14c . At the first stage of the first cycle ( figure 14a ), 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 la deuxième étape de ce premier cycle (figure 14b), un garde-corps 18 est monté dans cette troisième face de l'escalier. Le montant 19a du garde-corps 18 est glissé le long du premier poteau 24a en faisant passer le premier poteau 24a dans l'ouverture 21b de la plaque 21a.At the second stage of this first cycle ( figure 14b ), 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 la troisième étape (figure 14c), un deuxième module 1 à deux marches est monté par son poteau central 2 sur le poteau central 2 du module 1 monté sur le vérin de pied 40 au milieu de la grande base 42 de l'embase horizontale 41, et les deux poteaux d'angle avant 10 et arrière 11 du deuxième module 1 sont montés respectivement sur le poteau d'angle arrière 11 du premier module 1 et sur le premier poteau 24a, en définissant ainsi la troisième des six faces de l'escalier de section transversale horizontale hexagonale à monter.At the third stage ( figure 14c ), 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.

A la première étape du deuxième cycle de montage de l'escalier (figure 15a), le deuxième poteau 24b de montant d'angle est emmanché sur le vérin de pied 40 à l'extrémité la plus proche de la petite base 43 de l'embase 41, et la lisse articulée 29b de ce deuxième poteau 24b est fixée en entretoise entre ce deuxième poteau 24b et l'embase 41 par liaison de cette lisse 29b avec l'attache 41a de l'embase, dans la quatrième face de l'escalier hexagonal.At the first stage of the second assembly cycle of the staircase ( figure 15a ), 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 la deuxième étape du deuxième cycle (figure 15b), un garde-corps 18 est monté dans cette quatrième face de l'escalier selon le même principe que celui décrit à la deuxième étape du premier cycle. Alternativement, lorsque le deuxième poteau 24b comprend un pion 66, le garde-corps 18 est au préalable orienté de sorte que le montant 19b est à proximité du poteau central 2. Puis, le garde-corps 18 est pivoté autour du deuxième poteau 24b vers le poteau arrière 11, jusqu'à ce que le crochet 22c vienne en butée contre le poteau arrière 11.At the second stage of the second cycle ( figure 15b ), 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. Alternatively, when the second post 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 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 la troisième étape de ce second cycle (figure 15c), un troisième module 1 de marches est monté en emmanchant son poteau central 2 sur celui du deuxième module 1, son poteau d'angle avant 10 sur la partie de l'extrémité supérieure mâle du poteau 11 d'angle arrière du deuxième module 1, et son poteau 11 d'angle arrière sur la partie de l'extrémité supérieure mâle du deuxième poteau 24b de montant d'angle qui dépasse au-dessus de la plaque 21a du garde-corps 18.At the third stage of this second cycle ( figure 15c ), 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.

A la première étape du troisième cycle (figure 16a), le troisième poteau 24c de montant d'angle de la figure 8b est monté sur le vérin de pied 40 à l'autre extrémité de la petite base 43 de l'embase 41, et la lisse articulée 29c de ce troisième poteau 24c de montant d'angle est montée en entretoise entre les deuxième et troisième poteaux 24b et 24c de montant d'angle par la fixation de son extrémité libre 31c à l'attache 26b du deuxième poteau 24b de montant d'angle (voir figure 8a).At the first stage of the third cycle ( figure 16a ), 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 la deuxième étape de ce troisième cycle (figure 16b), un troisième garde-corps 18 est monté dans la cinquième face latérale de l'escalier délimité par les deuxième et troisième poteaux 24b, 24c de montant d'angle, selon le même principe que celui décrit à la deuxième étape du deuxième cycle. Alternativement, lorsque le troisième poteau 24b comprend un pion 66, le garde-corps 18 est au préalable orienté de sorte que le montant 19b est à proximité du poteau central 2. Puis, le garde-corps 18 est pivoté autour du troisième poteau 24c vers le poteau arrière 11, jusqu'à ce que le crochet 22c vienne en butée contre le poteau arrière 11.At the second stage of this third cycle ( figure 16b ), 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. Alternatively, when 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 la troisième étape du troisième cycle (figure 16c), un quatrième module 1 de marches est monté en emmanchant son poteau central 2 sur celui du troisième module 1, son poteau 10 d'angle avant sur la partie de l'extrémité supérieure mâle du poteau d'angle arrière 11 du troisième module 1, et son poteau d'angle arrière 11 est emmanché sur la partie de l'extrémité supérieure mâle du troisième poteau 24c de montant d'angle. Ainsi, à la troisième étape de ce troisième cycle, le quatrième module 1 de marches est monté sur le troisième comme le troisième l'a été sur le deuxième, et ce dernier l'a été sur le premier, par empilement vertical de son poteau central 2 sur celui du troisième module 1, de son poteau d'angle arrière 11 sur la partie de l'extrémité supérieure mâle du troisième poteau 24c de montant d'angle qui dépasse au-dessus de la plaque 21a du troisième garde-corps 18, et du poteau d'angle avant 10 sur la partie de l'extrémité supérieure mâle du poteau d'angle arrière 11 du troisième module 1.At the third stage of the third cycle ( figure 16c ), 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. Thus, in the third stage of this third cycle, 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 la première étape du quatrième cycle (figure 17a), un quatrième poteau 24d de montant d'angle selon la figure 8c est monté sur le vérin de pied 40 à la deuxième extrémité de la grande base 42 de l'embase 41, et sa lisse articulée 29d est montée en entretoise inclinée entre les deux poteaux 24c et 24d de montant d'angle, délimitant la sixième face latérale de l'escalier, par fixation de l'extrémité libre 31d (voir figure 8c) de cette lisse 29d sur l'attache 26c du troisième poteau 24c de montant d'angle.At the first stage of the fourth cycle ( figure 17a ), 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 la deuxième étape de ce quatrième cycle, un quatrième garde-corps 18 (voir figure 17b) est monté selon le même principe que celui décrit à la deuxième étape du premier cycle, et à la deuxième étape du troisième cycle. Cependant ici, le quatrième poteau 24d comprenant un pion 66, le garde-corps 18 est au préalable orienté de sorte que le montant 19b est à proximité du poteau central 2. Puis, le garde-corps 18 est pivoté autour du deuxième poteau 24b vers le poteau arrière 11, jusqu'à ce que le crochet 22c vienne en butée contre le poteau arrière 11.At the second stage of this fourth cycle, 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. However, here, 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. Then, 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.

Ce quatrième cycle se termine, à la troisième étape (figure 17c), par l'installation d'un cinquième module 1 de marches. Ici, à la différence des autres cycles, la pose du module 1 consiste d'abord à la mise en prise du manchon 16 du poteau 11 avec l'extrémité supérieure mâle du quatrième poteau 24d. Le pion 66 de l'extrémité supérieure mâle du quatrième poteau 24d vient ainsi se loger dans la partie axiale 17a de la lumière 17 du manchon 16 du poteau 11. Puis, le pion 66 coopère avec la partie intermédiaire 17b et se déplace le long de cette partie intermédiaire 17b. Le module 1 pivote ainsi autour du quatrième poteau 24d, le mouvement de pivot étant limité par la dimension de la partie intermédiaire 17b. A la fin du mouvement de pivot, les manchons 14 des poteaux central et avant 2, 10 sont en regard des extrémités mâles respectivement des poteaux central 2 et arrière 11 du module 1 sous-jacent, c'est-à-dire du quatrième module 1. Le pion 66 coopère enfin avec la partie axiale 17c de la lumière 17 du manchon 16 du poteau 11. Le poteau d'angle avant 10 du cinquième module 1 vient alors s'emmancher sur la partie de l'extrémité supérieure mâle du poteau d'angle arrière 11 du quatrième module 1 et le poteau central 2 vient s'emmancher sur la partie de l'extrémité supérieure mâle du poteau central 2 sous-jacent.This fourth cycle ends at the third stage ( figure 17c ), by the installation of a fifth module 1 of steps. Here, unlike the other cycles, 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. At the end of the pivoting movement, 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.

Après le quatrième cycle et jusqu'à obtention de la hauteur souhaitée, chaque cycle est une répétition du quatrième cycle, avec un décalage de niveau correspondant au module 1 de marches rajouté à chaque cycle, pour réaliser un second tour de l'escalier, à l'aplomb au-dessus du premier tour, les nouveaux poteaux de montant d'angle incorporés dans l'assemblage étant tous identiques au quatrième poteau 24d de la figure 8c. La première étape de chacun de ces cycles concerne toujours la mise en place d'un quatrième poteau 24d de montant d'angle. En résultat, le pion 66 du poteau d'angle avant 10 du module 1 sous-jacent vient se loger dans la lumière 17 du poteau 24d de montant d'angle, et le pion 66 du poteau 24d vient se loger dans la lumière 17 du poteau d'angle arrière 11 sus-jacent. La deuxième étape concerne la mise en place d'un garde-corps 18 supplémentaire, et la dernière étape de chaque cycle correspond toujours à la mise en place d'un module 1 de marches supplémentaire.After the fourth cycle and until the desired height is obtained, 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. As a result, 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.

Suite au dernier cycle, la première étape concerne, de façon identique au quatrième cycle, la mise en place d'un quatrième poteau 24d de montant d'angle supplémentaire, la deuxième étape concerne la mise en place d'un module 1 de marches supplémentaires et la troisième étape concerne la mise en place du garde-corps de fermeture 33, pour permettre la sortie de l'escalier au niveau du dernier module 1 de marches. Dans l'exemple illustré à la figure 19, l'escalier hélicoïdal est limité à 2 tours, le dernier module de marches 1 correspondant ainsi au douzième module 1 de marches installé.Following the last cycle, 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. In the example shown in figure 19 , the spiral staircase is limited to 2 turns, the last step module 1 corresponding to the twelfth step module 1 installed.

Dans ces cycles de montage, à partir du quatrième cycle, non seulement tous les poteaux de montant d'angle montés dans la première étape de chaque cycle sont identiques au quatrième poteau 24d de montant d'angle, mais chacun d'eux est monté sur un poteau d'angle avant 10 d'un module 1 d'escalier sous-jacent, et dans le prolongement vertical du poteau d'angle avant 10 de ce module 1.In these mounting cycles, starting from the fourth cycle, not only all the corner post posts mounted in the first step of each cycle are identical to the fourth post of corner post 24d, but each of them is mounted on a front corner post 10 of an underlying stair module 1, and in the vertical extension of the front corner post 10 of this module 1.

De plus, à partir du sixième cycle de montage, les tenons 32d latéraux de chaque poteau 24d de montant d'angle s'engagent dans les manchons 23a et 23b verticaux en saillie latérale de deux garde-corps 18 voisins et sous-jacents, préalablement montés. De même, à partir du sixième cycle de montage, la lisse 29d de chaque poteau 24d de montant d'angle est fixée par son extrémité libre 31d sur le poteau 24d de montant d'angle précédemment monté en entretoise inclinée sensiblement parallèle aux deux lisses inclinées 20b et 20c d'un garde-corps 18 préalablement monté et sous-jacent, en faisant ainsi fonction de troisième lisse inclinée, renforçant la sécurité pour les utilisateurs dans le deuxième tour de l'escalier.In addition, from the sixth mounting cycle, the lateral tenons 32d of each post 24d of angle post engage in the vertical sleeve 23a and 23b lateral projection of two guard rails 18 adjacent and underlying, previously mounted. Likewise, starting from the sixth mounting cycle, 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.

On rappelle que, lors de la troisième étape d'un nouveau cycle de montage, le poteau d'angle avant 10 d'un module 1 de marches se monte sur le poteau d'angle arrière 11 du module 1 monté dans la troisième étape du cycle précédent.It will be recalled that, in the third step of a new assembly cycle, 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.

A partir de l'escalier inachevé de la figure 18a, on parvient à l'escalier achevé de la figure 19 par le montage d'un onzième et dernier garde-corps, correspondant au garde-corps de fermeture 33, suite au montage d'un douzième module 1, , sans le montage préalable d'un nouveau poteau 24d de montant d'angle. Ainsi, les poteaux d'angle avant 10 et arrière 11 du dernier module 1 sont mis en place directement et respectivement sur le poteau d'angle arrière 11 du onzième module 1 et sur le nouveau poteau 24d de montant d'angle, sans interposition de manchons de garde-corps.From the unfinished staircase of the figure 18a we reach the completed staircase of the figure 19 by mounting an eleventh and last railing, corresponding to the closing railing 33, following the mounting of a twelfth module 1, without the prior assembly of a new post 24d angle post. Thus, the front corner posts 10 and rear 11 of the last module 1 are placed directly and respectively on the rear corner post 11 of the eleventh module 1 and on the new post 24d angle post, without interposition of railing sleeves.

Le garde-corps de fermeture 33 de la figure 9 est monté derrière la marche haute 4 du dernier module 1 et le long du bord arrière de cette marche haute 4, et emmanché par ses plaques 36 sur les extrémités supérieures des poteaux central 2 et d'angle arrière 11 du dernier module 1, et retenu par l'un de ses colliers 38 autour du poteau central 2 de l'avant-dernier module 1 et par l'autre collier 38 autour du poteau 24d de montant d'angle supportant le poteau d'angle arrière 11 du dernier module 1.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.

En outre, cinq autres poteaux 24e de montant d'angle sont montés verticalement le long des côtés des cinq derniers garde-corps 18 et entre ces derniers. Selon un premier exemple, les poteaux 24e sont identiques aux poteaux 24d. Les poteaux 24e sont montés par emmanchement sur les extrémités supérieures mâles des poteaux d'angle avant 10 et arrière 11 des onzième, dixième, neuvième, huitième et septième modules 1, les lisses 29d de ces cinq poteaux 24e étant fixées inclinées entre ces poteaux 24e, pour sécuriser l'accès de l'escalier à ces cinq derniers modules 1 de marches, et les tenons 23a et 23b des garde-corps 18 sont engagés dans des manchons 32d de ces poteaux 24e pour rigidifier la partie haute de l'escalier à sortie latérale par-dessus le limon 7 du dernier module 1 de marches.In addition, five other 24th corner post posts are mounted vertically along the sides of the last five railings 18 and in between. In a first example, 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.

Alternativement, ces cinq derniers poteaux 24e sont de longueur inférieure aux autres poteaux 24d constituant l'escalier. Plus précisément, leur extrémité supérieure est raccourcie par rapport à l'extrémité supérieure des autres poteaux 24d. en outre leur extrémité supérieure ne comprend pas de pion 66. A titre d'exemple, les cinq derniers poteaux 24d ont une longueur de 1,3 m tandis que les autres poteaux 24d ont une longueur de 1,52 m. La différence de hauteur entre ces cinq derniers poteaux et les autres poteaux 24d permet de les différencier et d'identifier facilement les cinq derniers poteaux, utiles pour sécuriser l'utilisation de l'escalier.Alternatively, 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. By way of example, 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.

Claims (19)

Module (1) d'escalier pour un escalier modulaire hélicoïdal de section transversale horizontale hexagonale, délimitée par six montants d'angle verticaux autour d'un montant central vertical, ledit module (1) comportant un poteau central (2) d'axe (Z) sensiblement vertical et deux marches (3, 4) de forme sensiblement triangulaire, dont une marche basse (3) et une marche haute (4), s'étendant dans des plans horizontaux perpendiculaires à l'axe (Z) du poteau central (2) et radialement depuis ledit poteau central (2), auquel les marches (3, 4) sont chacune solidarisées par un bord étroit (5) d'extrémité radiale interne,
lesdites deux marches (3, 4) étant solidarisées chacune par un bord large (6) d'extrémité radiale externe à un unique limon (7) sous la forme d'une plaque sensiblement plane et parallèle à l'axe (Z) du poteau central (2), le limon (7) présentant une partie basse (8) et une partie haute (9) solidarisées à la tranche du bord large (6) respectivement de la marche basse (3) et de la marche haute (4), et le module comprenant deux poteaux d'angle (10, 11) d'axes parallèles à l'axe (Z) du poteau central (2), de sorte que les extrémités supérieures des trois poteaux (2, 10, 11) du module sont dans un même plan transversal perpendiculaire aux axes des trois poteaux (2, 10, 11) du module, dont l'un des deux poteaux d'angle, dit poteau d'angle avant (10), est solidaire de la partie basse (8) du limon (7) à l'extrémité avant de ce dernier, du nez (12) de la marche basse (3) à son extrémité radiale externe, et du bord large (6) de la marche basse (3), à son extrémité avant, et dont l'autre poteau d'angle, dit poteau d'angle arrière (11) est solidaire de la partie haute (9) du limon (7) à l'extrémité arrière de ce dernier, du bord arrière (13) de la marche haute (4) à son extrémité radiale externe, et du bord large (6) de la marche haute (4) à son extrémité arrière, le poteau central (2) et les deux poteaux d'angle (10, 11) du module (1) comportant chacun une extrémité femelle et une extrémité mâle qui sont aptes respectivement à recevoir une extrémité mâle et à être reçue dans une extrémité femelle de poteaux analogues de modules (1) identiques à deux marches, de sorte à contribuer avec lesdits poteaux analogues à la constitution dudit montant central et desdits montants d'angle de l'escalier,
caractérisé en ce que l'un au moins des trois poteaux (2, 10, 11) du module (1) présente au moins un organe d'un dispositif de verrouillage (66, 17), apte à coopérer avec au moins un autre organe dudit dispositif de verrouillage (17, 66) qui équipe un poteau d'un autre module d'escalier (1) ou d'un poteau de montant d'angle (24d) de l'escalier pour verrouiller la liaison dudit module avec ledit autre module (1) ou poteau de montant d'angle (24d).Stair module (1) for a modular helical staircase of hexagonal horizontal cross-section, delimited by six vertical corner posts around a vertical central upright, said module (1) having a central pole (2) with an axis ( Z) substantially vertical and two steps (3, 4) of substantially triangular shape, including a low step (3) and a high step (4), extending in horizontal planes perpendicular to the axis (Z) of the central post (2) and radially from said central post (2), to which the steps (3, 4) are each secured by a narrow edge (5) of internal radial end,
said two steps (3, 4) being each secured by a wide outer edge (6) of outer radial end to a single stringer (7) in the form of a substantially flat plate and parallel to the axis (Z) of the post central (2), the stringer (7) having a lower part (8) and an upper part (9) secured to the edge of the wide edge (6) respectively of the low step (3) and the high step (4) , and the module comprising two corner posts (10, 11) with axes parallel to the axis (Z) of the central post (2), so that the upper ends of the three posts (2, 10, 11) of the module are in the same transverse plane perpendicular to the axes of the three posts (2, 10, 11) of the module, one of the two corner posts, said front corner post (10), is secured to the lower part (8) the silt (7) at the front end of the latter, the nose (12) of the low step (3) at its outer radial end, and the wide edge (6) of the low step (3), at its front end, and whose other corner post, said rear corner post (11) is secured to the upper part (9) of the stringer (7) at the rear end thereof, the rear edge (13) of the high step (4) at its outer radial end, and the wide edge (6) of the high step (4) at its rear end, the central post (2) and the two corner posts (10, 11) of the module (1) each having a female end and a male end which are respectively adapted to receive a male end and to be received in a female end of similar posts of modules (1) identical to two steps, so as to contribute with said analog posts at the constitution of said central upright and said corner uprights of the staircase,
characterized in that at least one of the three posts (2, 10, 11) of the module (1) has at least one member of a locking device (66, 17), able to cooperate with at least one other member of said locking device (17, 66) which equips a post of another stair module (1) or a corner post post (24d) of the staircase to lock the connecting said module with said other module (1) or corner post post (24d). Module (1) d'escalier selon la revendication 1, caractérisé en ce que le poteau central (2) et les deux poteaux d'angle (10, 11) sont trois poteaux tubulaires, solidarisés aux deux marches (3, 4) et au limon commun (7), et dont les extrémités inférieures sont constituées chacune par l'un respectivement de trois manchons (14, 16), dont celui du poteau d'angle arrière (11) est plus long que ceux de sensiblement même longueur des deux autres poteaux et présente une lumière (17) en baïonnette s'ouvrant dans le bord inférieur dudit manchon (16), d'un dispositif de verrouillage correspondant à un pion radial (66) sur l'extrémité supérieure du poteau d'angle avant (10) ou d'un poteau de montant d'angle (24b, 24c, 24d) de l'escalier.Module (1) staircase according to claim 1, characterized in that the central post (2) and the two corner posts (10, 11) are three tubular posts, secured to the two steps (3, 4) and the common slime (7), and whose lower ends are each constituted by one respectively of three sleeves (14, 16), the one of the rear corner post (11) is longer than those of substantially the same length of the two other posts and has a bayonet lumen (17) opening in the lower edge of said sleeve (16), a locking device corresponding to a radial pin (66) on the upper end of the front corner post ( 10) or a corner post post (24b, 24c, 24d) of the staircase. Module (1) d'escalier selon la revendication 2, caractérisé en ce que les trois poteaux (2, 10, 11) dudit module sont en métal ou alliage léger et solidarisés aux marches (3, 4) et au limon (7) qui sont dans le même métal ou alliage.Module (1) staircase according to claim 2, characterized in that the three posts (2, 10, 11) of said module are metal or light alloy and secured to the steps (3, 4) and the stringer (7) which are in the same metal or alloy. Module (1) d'escalier selon la revendication 3, caractérisé en ce que le manchon (16) du poteau d'angle arrière (11) fait saillie en-dessous du plan sensiblement horizontal perpendiculaire à l'axe (Z) de l'extrémité inférieure du poteau central (2) et du poteau d'angle avant (10) dont les manchons (14) sont de hauteur sensiblement identique.Stair module (1) according to claim 3, characterized in that the sleeve (16) of the rear corner post (11) projects below the substantially horizontal plane perpendicular to the axis (Z) of the lower end of the central pole (2) and the front corner post (10) whose sleeves (14) are of substantially identical height. Module selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le limon (7) présente une partie basse (8) sensiblement rectangulaire à bords inférieur et supérieur sensiblement parallèles à la marche basse (3), et une partie haute (9) en forme sensiblement de U retourné, à bord supérieur sensiblement parallèle à la marche haute (4).Module according to any one of claims 1 to 4, characterized in that the stringer (7) has a substantially rectangular lower part (8) with lower and upper edges substantially parallel to the lower step (3), and an upper part ( 9) substantially U-shaped returned, upper edge substantially parallel to the high step (4). Module (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les axes parallèles des trois poteaux (2, 10, 11) du module passent chacun par l'un respectivement des trois sommets d'un triangle équilatéral dans un plan de coupe transversale du module (1) perpendiculairement aux axes desdits poteaux (2, 10, 11), et chaque marche (3, 4) a une forme en plan sensiblement de triangle rectangle.Module (1) according to any one of claims 1 to 5, characterized in that the parallel axes of the three posts (2, 10, 11) of the module each pass through one respectively of the three vertices of an equilateral triangle in a cross-sectional plane of the module (1) perpendicular to the axes of said posts (2, 10, 11), and each step (3, 4) has a substantially rectangular plane shape. Ensemble d'éléments modulaires, pour réaliser un escalier modulaire hélicoïdal de section transversale horizontale hexagonale délimitée par six montants d'angle verticaux autour d'un montant central vertical, l'ensemble comprenant une embase (41) trapézoïdale pour la mise en place au sol des éléments modulaires, caractérisé en ce qu'au moins un élément modulaire parmi lesdits éléments modulaires de l'ensemble est un module (1) d'escalier à deux marches (3, 4) selon l'une quelconque des revendications précédentes, au moins un deuxième élément modulaire parmi les éléments modulaires de l'ensemble étant un garde-corps (18) comprenant deux montants (19a, 19b) verticaux tubulaires de longueur inégale, entretoisés, en partie basse, par une traverse (20a) et en partie haute par au moins une, mais de préférence deux, traverse(s) (20b, 20c) inclinée(s) formant lisse(s) de protection, le montant (19a) le plus long des deux montants (19a, 19b) de garde-corps supportant, en saillie latérale vers l'extérieur, une plaque (21a) en partie basse et chacun des deux montant (19a, 19b) supportant un manchon (23a, 23b) en saillie vers le haut en partie haute, qui sont parallèles au montant (19a, 19b) de garde-corps, ladite plaque (21b) étant apte à coulisser autour de l'extrémité supérieure du poteau d'angle arrière (11) d'un module (1) d'escalier ou sur un poteau (24a, 24b, 24c, 24d) de montant d'angle constituant un autre élément modulaire dudit ensemble, lesdits manchons (23a, 23b) étant aptes à recevoir des tenons (32d) latéraux de poteaux (24d) de montant d'angle de l'ensemble.Set of modular elements, to realize a modular spiral staircase of hexagonal horizontal cross section delimited by six uprights vertical angle around a vertical central upright, the assembly comprising a trapezoidal base (41) for the placing on the ground of the modular elements, characterized in that at least one modular element among said modular elements of the assembly is a module (1) staircase with two steps (3, 4) according to any one of the preceding claims, at least a second modular element among the modular elements of the assembly being a railing (18) comprising two uprights (19a, 19b) vertical tubular unequal length, braced, at the bottom, by a cross member (20a) and at the top by at least one, but preferably two, crosses (s) (20b, 20c) inclined ( s) forming a protective rail (s), the longer post (19a) of the two rail support posts (19a, 19b) supporting, in lateral outward projection, a bottom plate (21a) and each two uprights (19a, 19b) supporting a projecting sleeve (23a, 23b) upwards in the upper part, which are parallel to the railing post (19a, 19b), said plate (21b) being able to slide around the upper end of the rear corner post (11) of a module (1) staircase or on a post (24a, 24b, 24c, 24d) corner post constituting another modular element of said assembly, said sleeves (23a, 23b) being adapted to receive pins (32d) lateral of corner post uprights (24d) of the assembly. Ensemble d'éléments modulaires selon la revendication 7, caractérisé en ce que le montant (19b) le plus court des deux montants (19a, 19b) de garde-corps (18) supporte, en saillie latérale vers l'extérieur, un crochet (22c) en partie basse.Set of modular elements according to claim 7, characterized in that the shortest post (19b) of the two railing posts (19a, 19b) carries, in lateral outward projection, a hook ( 22c) in the lower part. Ensemble d'éléments modulaires selon la revendication 8, caractérisé en ce qu'il comprend de plus une pluralité de poteaux de montant d'angle comprenant : - un premier poteau (24a), de sensiblement même structure et dimensions que le poteau d'angle avant (10) du module (1) d'escalier à deux marches, et ayant une extrémité mâle compatible avec l'extrémité femelle (16) du poteau d'angle arrière (11) dudit module (1), mais avec, de plus, une collerette annulaire (28a) formant butée limitant le coulissement d'une plaque (21a) de garde-corps (18) sur ledit premier poteau (24a), - un deuxième poteau (24b) étant sensiblement de même structure que le premier poteau (24a) de montant d'angle, mais de hauteur double de celle dudit premier poteau (24a) de montant d'angle, et comprenant une attache (30b) en saillie latérale externe, apte à une liaison amovible avec une extrémité libre (31b) d'une lisse (29b) articulée par son autre extrémité à l'embase (41), - un troisième poteau (24c), de sensiblement même structure que le premier poteau (24a) de montant d'angle mais de hauteur triple de celle dudit premier poteau (24a) de montant d'angle, et - au moins un quatrième poteau (24d), également sensiblement de même structure que le premier poteau (24a) de montant d'angle, mais de hauteur quadruple de celle dudit premier poteau (24a) de montant d'angle, le quatrième poteau (24d) comprenant en outre au moins un organe d'un dispositif de verrouillage (66, 17), apte à coopérer avec au moins un autre organe dudit dispositif de verrouillage (17, 66) qui équipe un poteau d'un module d'escalier, et les troisième (24c) et quatrième (24d) poteaux de montant d'angle ayant de plus une lisse (29c, 29d) rectiligne, articulée par une extrémité à pivotement autour d'un axe horizontal (30c, 30d) sur ledit poteau (24c, 24d) de montant d'angle, sensiblement à la longueur du premier poteau (24a) de montant d'angle depuis l'extrémité supérieure dudit poteau (24c, 24d), et apte à être liée de manière amovible, par son autre extrémité (31c, 31d), en entretoise inclinée, à ladite attache (26b, 26c, 26d) d'un poteau de montant d'angle voisin délimitant une même face de l'escalier hexagonal, et ledit au moins un quatrième poteau (24d) de montant d'angle ayant de plus, en saillie latérale de part et d'autre d'une portion dudit poteau (24d) dans sa moitié inférieure, deux tenons (32d), parallèles audit quatrième poteau (24d), et aptes à s'engager chacun dans un manchon (23a, 23b) de garde-corps (18), de sorte que ladite lisse (29d) en entretoise inclinée d'un quatrième poteau (24d) de montant d'angle est apte à faire fonction de lisse de sécurité supplémentaire s'ajoutant à la ou aux deux lisses (20b, 20c) inclinées d'un garde-corps (18) préalablement monté sur l'escalier.Modular element assembly according to claim 8, characterized in that it further comprises a plurality of corner post posts comprising: a first post (24a) of substantially the same structure and dimensions as the front corner post (10) of the two-step stair module (1), and having a male end compatible with the female end (16) the rear corner post (11) of said module (1), but with, in addition, an annular flange (28a) forming a stop limiting the sliding of a railing plate (21a) (18) on said first post (24a) a second post (24b) being substantially of the same structure as the first post (24a) of the corner post, but twice the height of said first post (24a) of the corner post, and comprising a fastener (30b) external lateral projection, adapted to a detachable connection with a free end (31b) of a rail (29b) articulated by its other end to the base (41), a third post (24c) of substantially the same structure as the first post (24a) of angle post but of height triple that of said first posts post (24a), and at least one fourth pole (24d), also substantially of the same structure as the first post (24a) of the corner post, but four times the height of said first post (24a) of the corner post, the fourth post ( 24d) further comprising at least one member of a locking device (66, 17) adapted to cooperate with at least one other member of said locking device (17, 66) which equips a post of a stair module , and the third (24c) and fourth (24d) post posts having in addition a rectilinear rail (29c, 29d) articulated by a pivot end about a horizontal axis (30c, 30d) on said post (24c). , 24d) of the corner post, substantially the length of the first post post (24a) angle post from the upper end of said post (24c, 24d), and removably attachable, at its other end (31c, 31d), in inclined strut, to said fastener (26b, 26c, 26d) of a neighboring corner stud post delimiting the same face of the hexagonal staircase, and said at least one fourth post (24d) angle post having further, projecting laterally on either side of a portion of said post (24d) in its lower half, two pins (32d), parallel to said fourth post (24d), and adapted to s each engage in a railing sleeve (23a, 23b), so that said smooth (29d) inclined spacer of a fourth oteau (24d) corner post is adapted to act as additional safety rail adding to the one or both smooth (20b, 20c) inclined guardrail (18) previously mounted on the stairs. Ensemble d'éléments modulaires selon la revendication 9, caractérisé en ce que le deuxième (24b) et/ou le troisième (24c) poteau comprend en outre un pion (66) d'un dispositif de verrouillage (66, 17), apte à coopérer avec au moins une lumière (17) dudit dispositif de verrouillage (17, 66) qui équipe un poteau d'un module d'escalier.Set of modular elements according to claim 9, characterized in that the second (24b) and / or the third (24c) post further comprises a pin (66) of a locking device (66, 17), adapted to cooperate with at least one lumen (17) of said locking device (17, 66) which equips a pole of a stair module. Ensemble d'éléments modulaires selon l'une quelconque des revendications 8 à 10, caractérisé en ce qu'il comprend aussi un élément modulaire supplémentaire agencé en garde-corps (33) de fermeture de l'escalier, comprenant deux montants (34) de garde-corps tubulaires, et de même hauteur, entretoisés par au moins deux lisses (35a, 35b) rectilignes horizontales, rigidement liées, par chacune de leurs deux extrémités, à l'un respectivement des deux montants (34) de garde-corps (33), dont une lisse supérieure (35a) raccordant les deux extrémités supérieures des deux montants (34) de garde-corps, et au moins une lisse (35b) médiane, de sorte à former un cadre ouvert entre les extrémités inférieures de ces deux montants (34), ledit garde-corps (33) de fermeture comportant également, en partie basse des montants (34) et en saillie latérale vers l'extérieur, deux colliers (38) liés chacun à l'un des deux montants (34), et aptes à être montés amoviblement l'un autour du montant central et l'autre autour d'un montant d'angle de l'escalier, en partie médiane des montants (34) et en saillie latérale vers l'extérieur, deux plaques (36) liées chacune à l'un des deux montants (34) et d'axe parallèle à ce dernier, et aptes à coulisser de manière amovible sur les poteaux central (2) et d'angle arrière (11) d'un dernier module d'escalier dudit ensemble.Set of modular elements according to any one of claims 8 to 10, characterized in that it also comprises an additional modular element arranged in railing (33) for closing the staircase, comprising two uprights (34) of tubular railings, and of the same height, braced by at least two straight (35a, 35b) rectilinear horizontal, rigidly connected, by each of their two ends, one respectively of the two rails (34) guardrail (33), including an upper rail (35a) connecting the two upper ends of the two rails (34) guardrail, and at least one smooth (35b) so as to form an open frame between the lower ends of these two uprights (34), said guard rail (33) also comprising, in the lower part of the uprights (34) and laterally projecting towards the door. outside, two collars (38) each connected to one of the two uprights (34), and able to be removably mounted one around the central upright and the other around a corner upright of the staircase , in the median part of the uprights (34) and projecting outwards, two plates (36) each connected to one of the two uprights (34) and having an axis parallel to the latter, and able to slide removable on the central post (2) and rear corner (11) of a last stair module of said set. Ensemble d'éléments modulaires selon l'une quelconque des revendications 8 à 11, caractérisé en ce qu'il comprend également, comme éléments modulaires supplémentaires, sept vérins de pied (40) indépendants, dont chacun est apte à régler en hauteur l'un respectivement des deux poteaux d'angle (10, 11) d'un premier module (1) d'escalier à deux marches, ainsi que l'embase (41) trapézoïdale sensiblement horizontale, dont la petite base (43) et les deux côtés inclinés (49) sont d'une même longueur correspondant à un côté de la section hexagonale de l'escalier, et réalisée par l'assemblage de tronçons rectilignes constituant au moins les deux bases (42, 43) et les deux côtés inclinés (49) de l'embase (41) trapézoïdale, qui est apte à recevoir un vérin de pied (40) à chacun de ses quatre sommets, et apte à régler en hauteur des poteaux (24a, 24b, 24c, 24d) de montant d'angle délimitant trois faces adjacentes de la section transversale horizontale hexagonale de l'escalier modulaire hélicoïdal, un vérin de pied (40) équipant le milieu de la grande base (42) de l'embase (41).Set of modular elements according to one of Claims 8 to 11, characterized in that it also comprises, as additional modular elements, seven independent foot jacks (40), each of which is capable of adjusting one of the height respectively the two corner posts (10, 11) of a first module (1) staircase with two steps, and the base (41) trapezoidal substantially horizontal, including the small base (43) and both sides slants (49) 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 (42, 43) and the two inclined sides (49 ) of the trapezoidal base (41), which is adapted to receive a foot cylinder (40) at each of its four vertices, and adapted to adjust the height of the posts (24a, 24b, 24c, 24d) angle delimiting three adjacent faces of the hexagonal horizontal cross-section the helical modular staircase, a foot jack (40) equipping the middle of the large base (42) of the base (41). Escalier modulaire hélicoïdal de section transversale horizontale hexagonale, délimitée par six montants d'angle verticaux autour d'un montant central vertical, caractérisé en ce qu'il comporte un ensemble d'éléments modulaires selon l'une quelconque des revendications 8 à 12.Modular spiral staircase of hexagonal horizontal cross-section, delimited by six vertical uprights around a vertical central upright, characterized in that it comprises a set of modular elements according to any one of claims 8 to 12. Procédé de montage d'un escalier modulaire hélicoïdal selon la revendication 13, caractérisé en ce qu'il comprend une succession de cycles comportant chacun trois étapes, dont la première est la disposition d'un poteau (24a, 24b, 24c, 24d) de montant d'angle, sur un vérin (40) ou sur un autre module (1) identique préalablement disposé, dont la deuxième étape consiste à monter un garde-corps (18), dont sa plaque (21a) coulisse autour du poteau (24a, 24b, 24c, 24d) de montant d'angle, de sorte que le garde-corps (18) s'étend dans ladite face adjacente de l'escalier hexagonal, de telle sorte que ledit poteau (24a, 24b, 24c, 24d) de montant d'angle délimite avec le garde-corps (18) une face adjacente de l'escalier hexagonal, et dont la troisième étape est la disposition d'un module (1) d'escalier à deux marches sur des vérins (40) ou sur un module (1) identique et un poteau (24a, 24b, 24c, 24d) de montant d'angle préalablement disposés, et tel que les deux poteaux d'angle (10, 11) dudit module (1) d'escalier définissent une face de l'escalier de section transversale horizontale hexagonale.A method of mounting a helical modular staircase according to claim 13, characterized in that it comprises a succession of cycles each comprising three stages, the first of which is the disposition of a pole (24a, 24b, 24c, 24d) of corner post, on a jack (40) or on another module (1) previously arranged, the second step of which consists in mounting a railing (18), whose plate (21a) slides around the post (24a, 24b, 24c, 24d) angle post, so that the keeper body (18) extends into said adjacent face of the hexagonal staircase, so that said post post (24a, 24b, 24c, 24d) delimits with the railing (18) an adjacent face of the hexagonal staircase, the third stage of which is the arrangement of a module (1) of staircase with two steps on jacks (40) or on an identical module (1) and a post (24a, 24b, 24c, 24d) previously disposed, and such that the two corner posts (10, 11) of said stair module (1) define a face of the hexagonal horizontal cross section staircase. Procédé de montage d'un escalier modulaire hélicoïdal selon la revendication 14, dans lequel, au cours de la deuxième étape, le garde-corps (18) est au préalable orienté de sorte que le montant (19b) le plus long des deux montants (19a, 19b) du garde-corps (18) est à proximité du poteau central (2), puis, le montant (19a) le plus long des deux montants (19a, 19b) du garde-corps (18) est pivoté autour du poteau de montant d'angle (24b, 24c, 24d) sous-jacent jusqu'à ce que le crochet (22c) vienne en butée contre le poteau d'angle arrière (11) dudit module (1) d'escalier.A method of mounting a helical modular staircase according to claim 14, wherein in the second step the railing (18) is previously oriented so that the longer post (19b) of the two posts ( 19a, 19b) of the railing (18) is close to the central post (2), then, the upright (19a) the longer of the two uprights (19a, 19b) of the railing (18) is rotated around the corner post post (24b, 24c, 24d) until the hook (22c) abuts against the rear corner post (11) of said stair module (1). Procédé de montage d'un escalier modulaire hélicoïdal selon la revendication 14 ou 15, caractérisé en ce qu'une étape préalable au premier cycle consiste à placer sur l'embase (41) une première marche (62).A method of mounting a helical modular staircase according to claim 14 or 15, characterized in that a step prior to the first cycle is to place on the base (41) a first step (62). Procédé de montage d'un escalier modulaire selon la revendication 16, caractérisé en ce qu'à partir du quatrième cycle, tous les poteaux de montant d'angle montés dans la première étape des cycles sont identiques au quatrième poteau (24d) de montant d'angle, et chaque poteau (24d) de montant d'angle est monté sur et dans le prolongement d'un poteau d'angle avant (10) d'un module (1) d'escalier sous-jacent.Method of mounting a modular staircase according to claim 16, characterized in that from the fourth cycle, all the corner post posts mounted in the first step of the cycles are identical to the fourth post (24d) of the post. angle, and each corner post post (24d) is mounted on and in the extension of a front corner post (10) of an underlying stair module (1). Procédé de montage d'un escalier modulaire selon l'une quelconque des revendications 14 à 15, caractérisé en ce qu'à partir du sixième cycle, les tenons (32d) latéraux de chaque poteau (24d) de montant d'angle s'engagent dans les manchons (23a, 23b) verticaux en saillie latérale de deux garde-corps (18) voisins sous-jacents préalablement montés.Method of mounting a modular staircase according to one of Claims 14 to 15, characterized in that from the sixth cycle the lateral tenons (32d) of each post (24d) of the corner post engage in the vertical lateral projections (23a, 23b) of two adjacent pre-mounted adjacent guardrails (18). Procédé de montage d'un escalier modulaire selon l'une quelconque des revendications 14 à 18, caractérisé en ce qu'à partir du sixième cycle, la lisse (29d) de chaque poteau (24d) de montant d'angle est fixée par son extrémité libre (31d) sur le poteau (24d) de montant d'angle précédemment monté en entretoise inclinée sensiblement parallèle à la ou aux lisse(s) inclinée(s) (29b, 29c) d'un garde-corps (18) sous-jacent préalablement monté, de sorte à faire fonction de troisième lisse inclinée.Method of mounting a modular staircase according to one of Claims 14 to 18, characterized in that from the sixth cycle the beam (29d) of each post (24d) of the corner post is fixed by its free end (31d) on the post (24d) angle post previously mounted inclined spacer substantially parallel to the inclined beam (s) (s) (29b, 29c) of an underlying rail (18) previously mounted, so to act as a third inclined smooth.
EP18173589.5A 2017-05-22 2018-05-22 Staircase module for spiral staircase with hexagonal section, assembly with at least one such module and staircase comprising at least one such assembly Active EP3406821B1 (en)

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FR1754501A FR3066516B1 (en) 2017-05-22 2017-05-22 HEXAGONAL HELICOIDAL STAIRCASE STAIRCASE MODULE, TOGETHER WITH AT LEAST ONE SUCH MODULE AND STAIRCASE COMPRISING AT LEAST ONE SUCH ASSEMBLY
FR1760355A FR3066517B1 (en) 2017-05-22 2017-11-03 STAIR MODULE FOR HELICOIDAL STAIRCASE WITH HEXAGONAL SECTION, ASSEMBLY WITH AT LEAST ONE SUCH MODULE AND STAIRCASE INCLUDING AT LEAST ONE SUCH ASSEMBLY

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DE29721616U1 (en) * 1997-12-06 1999-04-08 Ammann oHG, 86830 Schwabmünchen Cantilevered stairs
US6108988A (en) * 1998-12-07 2000-08-29 Soft Play, L.L.C. Spiral climb in surrounding enclosure
CN2637618Y (en) * 2003-04-30 2004-09-01 郑亚莉 Combined indoor stairs
FR2921398A1 (en) * 2007-09-25 2009-03-27 Campenon Bernard Regions Snc Temporary staircase constructing module, has peripheral edges that are straight so that steps are susceptible to form boarding stage boarded with sill of lateral access zone arranged on vertical wall of building
CN201460069U (en) * 2009-06-26 2010-05-12 李金喜 Rotating combined stairs
KR101423736B1 (en) * 2013-03-15 2014-08-01 주식회사 디케이에스코리아 Vertical supporter for scaffold
WO2017191391A1 (en) * 2016-05-02 2017-11-09 Entrepose Echafaudages Module for creating a spiral staircase for a building site, assembly comprising at least one such module and staircase for a building site comprising at least one such assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29721616U1 (en) * 1997-12-06 1999-04-08 Ammann oHG, 86830 Schwabmünchen Cantilevered stairs
US6108988A (en) * 1998-12-07 2000-08-29 Soft Play, L.L.C. Spiral climb in surrounding enclosure
CN2637618Y (en) * 2003-04-30 2004-09-01 郑亚莉 Combined indoor stairs
FR2921398A1 (en) * 2007-09-25 2009-03-27 Campenon Bernard Regions Snc Temporary staircase constructing module, has peripheral edges that are straight so that steps are susceptible to form boarding stage boarded with sill of lateral access zone arranged on vertical wall of building
CN201460069U (en) * 2009-06-26 2010-05-12 李金喜 Rotating combined stairs
KR101423736B1 (en) * 2013-03-15 2014-08-01 주식회사 디케이에스코리아 Vertical supporter for scaffold
WO2017191391A1 (en) * 2016-05-02 2017-11-09 Entrepose Echafaudages Module for creating a spiral staircase for a building site, assembly comprising at least one such module and staircase for a building site comprising at least one such assembly

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