EP2210994A1 - Modular stairway - Google Patents
Modular stairway Download PDFInfo
- Publication number
- EP2210994A1 EP2210994A1 EP09425011A EP09425011A EP2210994A1 EP 2210994 A1 EP2210994 A1 EP 2210994A1 EP 09425011 A EP09425011 A EP 09425011A EP 09425011 A EP09425011 A EP 09425011A EP 2210994 A1 EP2210994 A1 EP 2210994A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- modular
- fixed
- elbow
- load
- another
- 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.)
- Withdrawn
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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
- E04F11/104—Treads
- E04F11/1041—Treads having means to adjust the height, the depth and/or the slope of the stair steps
Definitions
- the present invention relates to a modular stairway for providing a connection between premises set at different levels of a dwelling unit or the like.
- Modular stairways existing on the market are made up of modules, the assembly of which gives rise to load-bearing structures that may be functional from the mechanical and technical standpoint but are far from satisfactory from the aesthetic point of view.
- the load-bearing structure of stairways of a known type strikes the eye as being in all cases an evident repetition of juxtaposed elements. The end result is a structure that frequently appears redundant and unattractive.
- the object of the present invention is to provide a stairway with a load-bearing structure of a purely tubular and continuous shape, in which the fact that the structure is made up of the repeated assemblage of discrete elements is as imperceptible as possible.
- a further object of the present invention is to provide a stairway in which, at the moment of assemblage, the adjustment of the distance between the steps can be performed in a simple and fast way.
- the above objects are achieved by a stairway in which the load-bearing structure comprises a plurality of modular elements fixed to one another, in which each modular element is tubular and substantially S-shaped, with a first end section and a second end section having a circular shape with respective axes parallel to one another, in which at least one of said end sections is fixed to a corresponding end section of an adjacent modular element by means of a spacer member with adjustable length, which defines the distance in a vertical direction or in a horizontal direction between two successive steps.
- a stairway for dwellings or the like comprising a modular load-bearing structure 12, fixed to which are a plurality of steps 14.
- the load-bearing structure 12 is made up a plurality of modular elements 16 fixed to one another in the way that will be described in what follows.
- each modular element 16 has substantially the shape of a pipe with double elbow, with a longitudinal axis 18 that is substantially S-shaped.
- the end stretches of the longitudinal axis 18, designated by 18a and 18b, are parallel to one another.
- Each modular element 16 comprises a first elbow-shaped tubular section 20 and a second elbow-shaped tubular section 22.
- the first elbow-shaped tubular section 20 has two ends 24, 26 with circular cross section having axes orthogonal to one another.
- the second tubular section 22 also has two ends 28, 30 with circular cross section with axes orthogonal to one another.
- the end 28 of the second tubular section 22 is inserted and fixed in the second end 26 of the first tubular section 20.
- the tubular sections 20, 22 are preferably made of sheet metal, and fixing between the ends 26 and 28 is preferably performed by welding.
- each elbow-shaped tubular section 20, 22 can be made up, respectively, of a first pair of shells 32 and a second pair of shells 34, for example made of stamped sheet metal, which are fixed to one another by welding.
- Each modular element 16 comprises two circular plates 36, 38 fixed, respectively, to the first elbow-shaped tubular section 20 and to the second elbow-shaped tubular section 22.
- the plates 36, 38 have respective holes 40, 42 sharing the respective axes 18a, 18b.
- the plates 36, 38 are fixed, for example by means of welding, in a position corresponding to the respective ends 24, 30.
- the plate 36 is displaced by a certain distance inwards with respect to the edge of the end 24, whilst the plate 38 is located in the immediate vicinity of the edge of the end 30.
- the hole 42 of the plate 38 is threaded or else is associated to a threaded nut, fixed, for example, on the internal face of the plate 38.
- each modular element 16 has a through hole 44 on its curved surface, aligned to the hole 40 of the plate 36.
- Each modular element 16 comprises a member for supporting a step 46 fixed on the curved surface of the first elbow-shaped tubular section 20.
- the member for supporting a step 46 has an annular flange 48 provided with holes 50 for fixing screws (not illustrated).
- the supporting member 46 is fixed, for example by means of welding, in a position corresponding to the hole 44 of the first elbow-shaped tubular section 20.
- the supporting member 46 has a through opening 52 aligned to the hole 44.
- the spacer member 54 comprises a first part 56 and a second part 58 complementary to one another. Both of the parts 56, 58 are preferably made of metal material, for example, aluminium or zama.
- the two parts 56, 58 are able to turn with respect to one another along a common longitudinal axis 60 thereof.
- the two parts 56, 58 are provided with step-like resting surfaces 62, 64 complementary to one another.
- the resting surfaces 62, 64 extend along cylindrical sectors, for example, with angular extension of 120°.
- the two parts 56, 58 are able to assume relative positions angularly staggered with respect to one another.
- FIGs 9A and 9B illustrate the way in which the modular elements 16 are fixed to one another in order to make up the modular load-bearing structure 12 of the stairway according to the present invention.
- the modular elements 16 are arranged with the plates 36, 38 oriented horizontally.
- a spacer member 54 is set between the plate 36 of a modular element 16 overlying the plate 38 of an underlying modular element 16.
- the two modular elements 16 are fixed to one another by means of a screw 70 that extends through the aligned holes 40, 42 of the plates 36, 38 and through the holes 66, 68 of the spacer member 54.
- the screw 70 engages a nut 72 fixed on the bottom face of the plate 38.
- FIGS. 9A and 9B illustrate the spacer member 54, in the position of maximum effective length L1 and in the position of minimum effective length L4, respectively. By varying the effective length of the spacer member 54, the riser of the steps varies from the maximum value H1 to the minimum value H4.
- the modular elements 16 can be assembled both in a rectilinear way (the first two steps at the bottom of the stairway illustrated in Figure 1 ) or else with a relative angle in such a way as to provide a helical load-bearing structure 12, as occurs for the steps from the third one onwards in the stairway illustrated in Figure 1 .
- the circular section of the modular elements 16 enables rotation through any angle of one module with respect to the previous one.
- Figure 10 illustrates a variant in which the spacer members 54 are used for adjusting the tread instead of the riser of the steps.
- the modular elements 16 are arranged with the plates 36, 38 oriented vertically, and a spacer member 54 is set between the plates 36, 38.
- Figures 9A , 9B and in Figure 10 envisaging two spacer members 54 for each modular element 16.
- the spacer members with vertical axis enable adjustment of the riser
- the spacer members with horizontal axis enable adjustment of the tread.
- the modular elements according to the present invention enable a load-bearing structure to be obtained having an aesthetic continuity, characterized by a very essential profile. Unlike existing modular stairways, in the solution according to the present invention the fact that the load-bearing structure is constituted by repeated assemblage of discrete modular elements is almost imperceptible. The assemblage of the individual modular elements is simple and fast.
- the spacer members according to the present invention enable all the standard sizes of riser to be obtained with just two pieces that can be rotated with respect to one another in different positions.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
Description
- The present invention relates to a modular stairway for providing a connection between premises set at different levels of a dwelling unit or the like.
- Modular stairways existing on the market are made up of modules, the assembly of which gives rise to load-bearing structures that may be functional from the mechanical and technical standpoint but are far from satisfactory from the aesthetic point of view. The load-bearing structure of stairways of a known type strikes the eye as being in all cases an evident repetition of juxtaposed elements. The end result is a structure that frequently appears redundant and unattractive.
- The object of the present invention is to provide a stairway with a load-bearing structure of a purely tubular and continuous shape, in which the fact that the structure is made up of the repeated assemblage of discrete elements is as imperceptible as possible.
- A further object of the present invention is to provide a stairway in which, at the moment of assemblage, the adjustment of the distance between the steps can be performed in a simple and fast way.
- According to the present invention, the above objects are achieved by a stairway in which the load-bearing structure comprises a plurality of modular elements fixed to one another, in which each modular element is tubular and substantially S-shaped, with a first end section and a second end section having a circular shape with respective axes parallel to one another, in which at least one of said end sections is fixed to a corresponding end section of an adjacent modular element by means of a spacer member with adjustable length, which defines the distance in a vertical direction or in a horizontal direction between two successive steps.
- The present invention will now be described in detail with reference to the attached drawings, which are provided purely by way of non-limiting example and in which:
-
Figure 1 is a perspective view illustrating an embodiment of a stairway according to the present invention; -
Figure 2 is a perspective view of a modular element designated by the arrow II inFigure 1 ; -
Figure 3 is an exploded perspective view of the modular element ofFigure 2 ; -
Figures 4 and5 are perspective cross-sectional views of two modular elements of different length; -
Figures 6 and7 are perspective views from different angles of a spacer member used in the stairway according to the present invention; -
Figures 8A to 8D are side views illustrating the spacer member ofFigures 6 and7 in different positions; -
Figures 9A and9B are cross sections illustrating two modules of a stairway according to the present invention with the spacer member in different positions; and -
Figure 10 is a cross section illustrating a different mode of mutual connection of the modular elements according to the present invention. - With reference to
Figure 1 , designated by 10 is a stairway for dwellings or the like, comprising a modular load-bearingstructure 12, fixed to which are a plurality ofsteps 14. The load-bearingstructure 12 is made up a plurality ofmodular elements 16 fixed to one another in the way that will be described in what follows. - With reference to
Figures 2 to 5 , eachmodular element 16 has substantially the shape of a pipe with double elbow, with alongitudinal axis 18 that is substantially S-shaped. The end stretches of thelongitudinal axis 18, designated by 18a and 18b, are parallel to one another. - Each
modular element 16 comprises a first elbow-shapedtubular section 20 and a second elbow-shapedtubular section 22. The first elbow-shapedtubular section 20 has twoends tubular section 22 also has twoends end 28 of the secondtubular section 22 is inserted and fixed in thesecond end 26 of the firsttubular section 20. Thetubular sections ends Figure 3 , each elbow-shapedtubular section shells 32 and a second pair ofshells 34, for example made of stamped sheet metal, which are fixed to one another by welding. - Each
modular element 16 comprises twocircular plates tubular section 20 and to the second elbow-shapedtubular section 22. Theplates respective holes respective axes plates respective ends plate 36 is displaced by a certain distance inwards with respect to the edge of theend 24, whilst theplate 38 is located in the immediate vicinity of the edge of theend 30. Thehole 42 of theplate 38 is threaded or else is associated to a threaded nut, fixed, for example, on the internal face of theplate 38. - The elbow-shaped
tubular section 20 of eachmodular element 16 has a throughhole 44 on its curved surface, aligned to thehole 40 of theplate 36. - Each
modular element 16 comprises a member for supporting astep 46 fixed on the curved surface of the first elbow-shapedtubular section 20. The member for supporting astep 46 has anannular flange 48 provided withholes 50 for fixing screws (not illustrated). The supportingmember 46 is fixed, for example by means of welding, in a position corresponding to thehole 44 of the first elbow-shapedtubular section 20. The supportingmember 46 has a through opening 52 aligned to thehole 44. - With reference to
Figures 6 and7 , designated by 54 is a spacer member with adjustable length. Thespacer member 54 comprises afirst part 56 and asecond part 58 complementary to one another. Both of theparts parts longitudinal axis 60 thereof. The twoparts like resting surfaces resting surfaces parts elements resting surfaces spacer member 54 in the direction of theaxis 60 varies. Theparts spacer member 54 are provided withrespective holes axis 60.Figures 8A, 8B, 8C, 8D show one and thesame spacer member 54 with theparts spacer member 54. -
Figures 9A and9B illustrate the way in which themodular elements 16 are fixed to one another in order to make up the modular load-bearingstructure 12 of the stairway according to the present invention. In the embodiment illustrated inFigures 9A and9B , themodular elements 16 are arranged with theplates spacer member 54 is set between theplate 36 of amodular element 16 overlying theplate 38 of an underlyingmodular element 16. The twomodular elements 16 are fixed to one another by means of ascrew 70 that extends through the alignedholes plates holes spacer member 54. Thescrew 70 engages anut 72 fixed on the bottom face of theplate 38. Thescrew 70 is activated by means of a spanner (not illustrated), which is inserted through the opening 52 of thefixing member 46 and through thehole 44 of thesection 20 of the overlyingmodular element 16.Figures 9A and9B illustrate thespacer member 54, in the position of maximum effective length L1 and in the position of minimum effective length L4, respectively. By varying the effective length of thespacer member 54, the riser of the steps varies from the maximum value H1 to the minimum value H4. - As is illustrated in
Figure 1 , themodular elements 16 can be assembled both in a rectilinear way (the first two steps at the bottom of the stairway illustrated inFigure 1 ) or else with a relative angle in such a way as to provide a helical load-bearingstructure 12, as occurs for the steps from the third one onwards in the stairway illustrated inFigure 1 . The circular section of themodular elements 16 enables rotation through any angle of one module with respect to the previous one. - With reference to
Figures 4 and5 , with the modular elements according to the present invention it is possible to vary the tread of the steps by providingmodules 16 with different distances between theaxes sections modular element 16. -
Figure 10 illustrates a variant in which thespacer members 54 are used for adjusting the tread instead of the riser of the steps. In this case, themodular elements 16 are arranged with theplates spacer member 54 is set between theplates Figures 9A ,9B and inFigure 10 , envisaging twospacer members 54 for eachmodular element 16. In this way, the spacer members with vertical axis enable adjustment of the riser, and the spacer members with horizontal axis enable adjustment of the tread. - The modular elements according to the present invention enable a load-bearing structure to be obtained having an aesthetic continuity, characterized by a very essential profile. Unlike existing modular stairways, in the solution according to the present invention the fact that the load-bearing structure is constituted by repeated assemblage of discrete modular elements is almost imperceptible. The assemblage of the individual modular elements is simple and fast. The spacer members according to the present invention enable all the standard sizes of riser to be obtained with just two pieces that can be rotated with respect to one another in different positions.
Claims (7)
- A modular stairway (10) comprising a load-bearing structure (12) and a plurality of steps (14) fixed to the load-bearing structure (12), wherein the load-bearing structure (12) comprises a plurality of modular elements (16) fixed to one another, characterized in that each modular element is tubular and substantially S-shaped with a first end section (24) and a second end section (30) having a circular shape with respective axes (18a, 18b) parallel to one another, in which at least one of said ends (24, 30) is fixed to a corresponding end (24, 30) of an adjacent modular element (16) by means of a spacer member (54) with adjustable length that defines the riser or the tread of the corresponding steps.
- The modular stairway according to Claim 1, characterized in that each modular element (16) comprises two elbow-shaped tubular sections (20, 22).
- The modular stairway according to Claim 2, characterized in that each modular element (16) comprises a pair of circular plates (36, 38) fixed in a position corresponding to the ends (24, 30) of the respective elbow-shaped tubular sections (20, 22).
- The modular stairway according to Claim 2, characterized in that each modular element (16) comprises a member for fixing a step (46) fixed to one of said elbow-shaped tubular sections (20, 22).
- The modular stairway according to Claim 1, characterized in that each of said spacer members (54) comprises two portions (56, 58) provided with respective step-like resting surfaces (62, 64), said portions (56, 58) being able to turn with respect to one another for defining different effective lengths (L1 - L4) of the spacer member (54).
- The modular stairway according to Claim 5, characterized in that said spacer member (54) is fixed between a plate (36) of a first elbow-shaped tubular section (20) of one modular element (16) and a plate (38) of a second elbow-shaped tubular section (22) of an adjacent modular element (16).
- The modular stairway according to Claim 6, characterized in that fixing between adjacent modular elements (16) is performed by means of at least one screw (70) that extends through aligned holes (40, 42, 66, 68) of said plates (36, 38) and of said spacer member (54).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09425011A EP2210994A1 (en) | 2009-01-21 | 2009-01-21 | Modular stairway |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09425011A EP2210994A1 (en) | 2009-01-21 | 2009-01-21 | Modular stairway |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2210994A1 true EP2210994A1 (en) | 2010-07-28 |
Family
ID=40602519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09425011A Withdrawn EP2210994A1 (en) | 2009-01-21 | 2009-01-21 | Modular stairway |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2210994A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107138869A (en) * | 2017-06-27 | 2017-09-08 | 中国冶集团有限公司 | A kind of sectional making method for being conducive to deep camber box-type section to rotate steel ladder |
WO2024014954A1 (en) * | 2022-07-15 | 2024-01-18 | VERBERNE, Gijs | A modular staircase |
NL2032502B1 (en) * | 2022-07-15 | 2024-01-25 | Johannes Cornelis Willemsen | Modular staircase |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2516139A1 (en) * | 1975-04-12 | 1976-10-21 | Frank Gmbh Wilh | Spiral staircase inter-step height-adjustable spacer - has notch-locking spiral surfaces on interfacing part-element end faces |
US4296577A (en) * | 1979-10-22 | 1981-10-27 | Schuette Heinz G | Helical staircase support |
EP0380198A1 (en) * | 1989-01-27 | 1990-08-01 | Keiichirou Yamazaki | A takedown staircase |
EP0866194A2 (en) * | 1997-03-18 | 1998-09-23 | ALBINI & FONTANOT S.p.A. | Modular support for staircase steps |
DE19853524A1 (en) * | 1998-11-20 | 2000-05-25 | Gerhard Wolf Gmbh | Staircase, has side rails made from single pieces of round tubing with horizontal, vertical and intermediate curved sections, joined together by cylindrical intermediate pieces |
WO2004057130A1 (en) * | 2002-12-23 | 2004-07-08 | Abacus S.R.L. | Adjustable modular support for modular staircases |
-
2009
- 2009-01-21 EP EP09425011A patent/EP2210994A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2516139A1 (en) * | 1975-04-12 | 1976-10-21 | Frank Gmbh Wilh | Spiral staircase inter-step height-adjustable spacer - has notch-locking spiral surfaces on interfacing part-element end faces |
US4296577A (en) * | 1979-10-22 | 1981-10-27 | Schuette Heinz G | Helical staircase support |
EP0380198A1 (en) * | 1989-01-27 | 1990-08-01 | Keiichirou Yamazaki | A takedown staircase |
EP0866194A2 (en) * | 1997-03-18 | 1998-09-23 | ALBINI & FONTANOT S.p.A. | Modular support for staircase steps |
DE19853524A1 (en) * | 1998-11-20 | 2000-05-25 | Gerhard Wolf Gmbh | Staircase, has side rails made from single pieces of round tubing with horizontal, vertical and intermediate curved sections, joined together by cylindrical intermediate pieces |
WO2004057130A1 (en) * | 2002-12-23 | 2004-07-08 | Abacus S.R.L. | Adjustable modular support for modular staircases |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107138869A (en) * | 2017-06-27 | 2017-09-08 | 中国冶集团有限公司 | A kind of sectional making method for being conducive to deep camber box-type section to rotate steel ladder |
WO2024014954A1 (en) * | 2022-07-15 | 2024-01-18 | VERBERNE, Gijs | A modular staircase |
NL2032502B1 (en) * | 2022-07-15 | 2024-01-25 | Johannes Cornelis Willemsen | Modular staircase |
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