WO2021005385A1 - Modular staircase unit - Google Patents

Modular staircase unit Download PDF

Info

Publication number
WO2021005385A1
WO2021005385A1 PCT/HU2020/000023 HU2020000023W WO2021005385A1 WO 2021005385 A1 WO2021005385 A1 WO 2021005385A1 HU 2020000023 W HU2020000023 W HU 2020000023W WO 2021005385 A1 WO2021005385 A1 WO 2021005385A1
Authority
WO
WIPO (PCT)
Prior art keywords
holes
staircase unit
staircase
elongated holes
fitting plates
Prior art date
Application number
PCT/HU2020/000023
Other languages
French (fr)
Inventor
Sándor SZILÁGYI
Original Assignee
AKM Metal Plusz Kft.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AKM Metal Plusz Kft. filed Critical AKM Metal Plusz Kft.
Publication of WO2021005385A1 publication Critical patent/WO2021005385A1/en

Links

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
    • E04F11/025—Stairways having stringers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F11/112—Treads of metal or with an upper layer of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F11/16—Surfaces thereof; Protecting means for edges or corners thereof
    • E04F11/163—Protecting means for edges or corners
    • 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
    • E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
    • E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
    • E04F2011/0209—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of metal

Definitions

  • the subject of the invention is a modular staircase unit, the configuration of which staircase unit allows the easy and quick assembling of staircase units to form staircase flights with adjustable length and stair rise with adjustable height according to the requirements.
  • staircase structures are being used in practice. Most of them are installed permanently, and are made of concrete, wood or steel. The construction of these staircases needs qualified personnel, while requiring large amounts of building material and time. In addition to that, an individual solution is necessary for each installation site.
  • the Australian patent AU 2015200568 makes known a staircase unit.
  • the stair units can be assembled in a modular fashion, so that the lateral supporting parts of the stair units are fastened to one another in a staggered configuration.
  • the Chinese patent CN 108590057 makes known a staircase structure which can be assembled and has a low mass.
  • the staircase structure is assembled from staircase units, so that the profiled ends of the lateral supporting parts of the staircase units are fitted and fastened together, and the treads are fixed between them.
  • the German patent DE 3214744 makes known a staircase structure established from IJ- shaped consoles. The U-shaped consoles are shifted relative to one another before fastening them together, so that the height difference between the U-shaped consoles determine the rise of the stair.
  • a modular staircase unit which can be assembled together easily and quickly with the help of elongated holes prepared in the connecting extensions of the staircase units and with the help of holes in their fastening parts, so that the rise of stair and the length of flight of stairs can be adjusted with the help of the elongated holes within a certain range, then the set out goal can be achieved.
  • the invention is modular staircase unit, which is established form fitting plates and stair tread.
  • the staircase unit is formed with stair tread fixed between identical fitting plates having an edge, the axis tl of the connecting extensions of whose fitting parts has an angle a relative to the edge, and two holes having diameter D are formed in each connecting extensions in a way, that the centers of holes aligned in parallel with axis tl are located at a distance K2 relative to each other, while the centers of holes are aligned perpendicularly to the axis tl and are located at a distance K1 relative to each other, furthermore, the lower elongated holes are formed with a length LI and a width S in the fastening parts of the fitting plates, where the distance between the axes of elongated holes is Kl, and the axes are aligned at an angle a relative to the edges of the fitting plates, furthermore, the upper elongated holes having a width S and a length L2 are formed beneath the edges of the fitting plates, and the stair tread is fastened in parallel with the edges of the fitting plates
  • the stair tread is made as a grating.
  • a leading safety edge with antiskid elements is fastened to the outside edge of the stair tread.
  • the length LI of the lower elongated holes is larger than or equal to the cumulative length of distance K2 and diameter D of the holes.
  • the diameter D of the holes is identical to the width S of the lower elongated holes.
  • the inclination angle a is 40°-50°, preferably 45°.
  • Fig. 1 shows a possible embodiment of the staircase unit according to the invention with perspective view.
  • Fig. 2 shows the lateral view of the staircase unit introduced in Fig. 1.
  • Fig. 3 shows the top view of the staircase unit introduced in Fig. 1.
  • Fig. 4 shows the front view of the staircase unit 1 introduced in Fig. 1.
  • Fig. 5 shows a possible embodiment of the flight of stairs assembled from staircase units 1 according to the invention.
  • Fig. 1 shows a possible embodiment of the staircase unit 1 according to the invention with perspective view.
  • the figure shows the staircase unit 1 formed with fitting plates 2, 3 at its two sides, and stair tread 4 is fastened in a known manner between the fitting plates 2, 3.
  • the stair tread 4 has a grated arrangement.
  • a leading safety edge 5 with antiskid elements 11 is located at the outside edge 33 of the stair tread 4.
  • the figure furthermore shows the two holes 10 in each of the connecting extensions 12, 13 of the fitting plates 2, 3, and there are elongated holes 8, 9 in their fastening parts 22, 23, and upper elongated holes 6, 7 are formed in parallel with the plane of the stair tread 4. If required, railing elements can be fastened in the upper elongated holes 6, 7 with the help of bolts 24.
  • Fig. 2 shows the lateral view of the staircase unit 1 introduced in Fig. 1.
  • the figure shows the staircase unit 1 together with the fitting plate 3 and the stair tread 4.
  • the leading safety edge 5 established with antiskid elements 11 can be seen at the outside edge 33 of the stair tread 4.
  • the figure further shows the that there are two holes 10 having diameter D formed in the connecting extension 13 of the fitting plate 3 with axis tl , the centers of which holes 10 are located at a distance K1 in a direction perpendicular to the axis tl, and are located at a distance K2 in a direction parallel with the axis tl .
  • the distance K2 of the holes 10 is determined in a way that K2+D ⁇ LI.
  • the figure shows the lower elongated holes 8, 9, which have a length LI and a width S with axes t2, t3 formed in the fastening part 23 where the axes t2 and t3 have a distance K1 from each other.
  • the figure shows the upper elongated holes 6, 7, which are aligned in parallel with the stair tread 4 and have a length L2 and a width S.
  • the figure shows that the lower elongated holes 8, 9 and the axis tl of the connecting extension 13 are aligned with an inclination angle a relative to the horizontal plane of the stair tread 4 and the edge 14, which inclination angle a determines the angle of the flight of stairs.
  • Fig. 3 shows the top view of the staircase unit 1 introduced in Fig. 1.
  • the figure shows the staircase unit 1 and the fitting plates 2, 3 together with the connecting extensions 12, 13, as well as the leading safety edge 5 formed with antiskid elements 11 on the stair tread 4.
  • Fig. 4 shows the front view of the staircase unit 1 introduced in Fig. 1.
  • the figure shows the staircase unit 1 together with the fitting plates 2, 3, as well as the leading safety edge 5 with antiskid elements 11.
  • Fig. 5 shows a possible embodiment of the flight of stairs assembled from staircase units 1 according to the invention.
  • the figure shows a flight of stairs which consists of five staircase units fastened together with the help of bolts 24.
  • the figure shows that the lower initial staircase unit 1 is attached to the lower fastening elements 25 by means of bolts 24, and the lower fastening elements 25 are attached to the horizontal support 31 in a known manner, e.g. by means of bolting with the help of holes 29 formed in it.
  • the upper staircase unit 1 is attached to the fastening parts 27 of the upper fastening elements 26 by means of bolts 24, while the upper fastening elements 26 are attached to the recipient vertical surface 32 in a known manner, e.g. by means of bolts passed through holes 30 formed in them.
  • staircase units 1 are attached to one another, so that the connecting extensions 12, 13 formed in the fitting plates 2, 3 of the lower staircase unit 1 having holes 10 are oriented towards the lower elongated holes 8, 9 formed in the fastening parts 23 of the staircase unit 1 located above, and are fixed together with the help of bolts 24.
  • the figure furthermore shows the bolts 24 are screwed into the upper elongated holes 6, 7 formed in the fitting plate 3.
  • the identically configured fitting plates 2, 3 are established first.
  • the fitting plate 3 is formed with edge 14, connecting extension 13 and fastening part 23, so that two holes 10 having diameter D are prepared in each connecting extension 13, and two parallel lower elongated holes 8, 9 having a length LI and a width S are created in the fastening part 23.
  • the axis tl of the connecting extension 13 is aligned with an angle a relative to the edge 14 and the upper elongated holes 6, 7.
  • the centers of each two holes 10 are located at a distance K1 from each other, and the distance between the axes of lower elongated holes 8, 9 is also Kl .
  • the two upper elongated holes 6, 7 having length L2 are formed in parallel with the edge 14 of the fitting plate 3, where the width S of the upper elongated holes 6, 7 is preferably identical to the width S of the lower elongated holes 8, 9.
  • the fitting plate 2 is formed similarly to the fitting plate 3. Following this the stair tread 4 is formed preferably with a grating. The leading safety edge 5 is created with antiskid elements 11 and is fastened to the outside edge 33 of the stair tread 4.
  • the stair tread 4 having a leading safety edge 5 is fixed with known method, preferably by means of welding between the fitting plates 2, 3.
  • the stair tread 4 is fixed at the area below the upper elongated holes 6, 7 in parallel with the edges 14 of the fitting plates 2, 3.
  • the flight of stairs is established from the staircase units 1 in a way, that the lower initial staircase unit 1 is attached first in a known manner to the lower fastening elements 25 by means of bolts 24 passed through the lower elongated holes 8, 9 formed in the fastening parts 22, 23.
  • the lower fastening element 25 is attached in a known manner to the horizontal support 31.
  • the subsequent staircase unit 1 is attached to the lower staircase unit 1 so that the connecting extensions 12, 13 formed in the fitting plates 2, 3 of the staircase unit 1 with holes 10 are oriented towards the lower elongated holes 8, 9 formed in the fastening parts 22, 23 of the staircase unit 1 situated above, and are fixed by means of bolts 24.
  • Each of the subsequent staircase unit 1 is fastened according to the above method.
  • the topmost staircase unit 1 is attached by means of bolts 24 to the upper fastening elements 26 with the help of its holes 10, while the upper fastening elements 26 are fixed to the vertical surface.
  • the height of the stair together with the height of the flight of stairs can be determined during the assembling of the staircase units 1, so that the holes 10 of the lower staircase unit 1 can be shifted to the desired distance up to a length L1-(K2+D) along the lower elongated holes 8, 9 having a length LI of the staircase unit 1 situated above when the staircase units 1 are fastened to each other.
  • the material of the staircase unit 1 according to the invention is steel, preferable structural steel.
  • the dimensions of the staircase unit 1 according to the invention can be selected according to the requirements, the preferred dimensions being 800x270 and 600x270 mm.

Abstract

The subject of the invention is a modular staircase unit, the configuration of which staircase unit allows the easy and quick assembling of staircase units to form staircase flights with adjustable length and stair rise with adjustable height according to the requirements. The invention is modular staircase unit, which is established form fitting plates and stair tread. It is characterised by that the staircase unit (1) is formed with stair tread (4) fixed between identical fitting plates (2, 3) having an edge (14), the axis (tl) of the connecting extensions (12, 13) of whose fitting parts (2, 3) has an angle a relative to the edge (14), and two holes (10) having diameter D are formed in each connecting extensions (12, 13) in a way, that the centers of holes (10) aligned in parallel with axis (tl) are located at a distance K2 relative to each other, while the centers of holes (10) are aligned perpendicularly to the axis (tl) and are located at a distance K1 relative to each other, furthermore, the lower elongated holes (8, 9) are formed with a length LI and a width S in the fastening parts (22, 23) of the fitting plates (2, 3), where the distance between the axes (t2, t3) of elongated holes (8, 9) is Kl, and the axes (t2, t3) are aligned at an angle a relative to the edges (14) of the fitting plates (2, 3), furthermore, the upper elongated holes (6, 7) having a width S and a length L2 are formed beneath the edges (14) of the fitting plates (2, 3), and the stair tread (4) is fastened in parallel with the edges (14) of the fitting plates (2, 3) beneath the upper elongated holes (6, 7).

Description

Modular staircase unit
The subject of the invention is a modular staircase unit, the configuration of which staircase unit allows the easy and quick assembling of staircase units to form staircase flights with adjustable length and stair rise with adjustable height according to the requirements.
Many different staircase structures are being used in practice. Most of them are installed permanently, and are made of concrete, wood or steel. The construction of these staircases needs qualified personnel, while requiring large amounts of building material and time. In addition to that, an individual solution is necessary for each installation site.
It is often a requirement in the case of bridging small heights, however, that the staircase structure should be deployed quickly and easily. Such requirements occur for example in case of terraces, access shafts, theater stages or in case of temporary stairs used at construction sites.
According to the state of art the Australian patent AU 2015200568 makes known a staircase unit. The stair units can be assembled in a modular fashion, so that the lateral supporting parts of the stair units are fastened to one another in a staggered configuration.
The Chinese patent CN 108590057 makes known a staircase structure which can be assembled and has a low mass. The staircase structure is assembled from staircase units, so that the profiled ends of the lateral supporting parts of the staircase units are fitted and fastened together, and the treads are fixed between them. The German patent DE 3214744 makes known a staircase structure established from IJ- shaped consoles. The U-shaped consoles are shifted relative to one another before fastening them together, so that the height difference between the U-shaped consoles determine the rise of the stair.
The drawback of the solutions described above is that the shape of the staircase unit is complicated, and their configuration and their mode of assembling do not allow the adjustment of the rise of the assembled flight of stairs to the given conditions of the site.
When developing the solution according to the invention we had the aim to create a flight of stairs made of units, which allow the quick and easy assembling of a flight of stairs without the use of additional supporting elements, and which allows the harmonization with the conditions of the site due to its adjustable length.
While creating the staircase units according to the invention we recognized that if a modular staircase unit is formed, which can be assembled together easily and quickly with the help of elongated holes prepared in the connecting extensions of the staircase units and with the help of holes in their fastening parts, so that the rise of stair and the length of flight of stairs can be adjusted with the help of the elongated holes within a certain range, then the set out goal can be achieved. The invention is modular staircase unit, which is established form fitting plates and stair tread. It is characterised by that the staircase unit is formed with stair tread fixed between identical fitting plates having an edge, the axis tl of the connecting extensions of whose fitting parts has an angle a relative to the edge, and two holes having diameter D are formed in each connecting extensions in a way, that the centers of holes aligned in parallel with axis tl are located at a distance K2 relative to each other, while the centers of holes are aligned perpendicularly to the axis tl and are located at a distance K1 relative to each other, furthermore, the lower elongated holes are formed with a length LI and a width S in the fastening parts of the fitting plates, where the distance between the axes of elongated holes is Kl, and the axes are aligned at an angle a relative to the edges of the fitting plates, furthermore, the upper elongated holes having a width S and a length L2 are formed beneath the edges of the fitting plates, and the stair tread is fastened in parallel with the edges of the fitting plates beneath the upper elongated holes.
In preferred embodiment of the solution according to the invention the stair tread is made as a grating.
In another preferred embodiment of the solution according to the invention a leading safety edge with antiskid elements is fastened to the outside edge of the stair tread.
In further another preferred embodiment of the solution according to the invention the length LI of the lower elongated holes is larger than or equal to the cumulative length of distance K2 and diameter D of the holes.
In further another preferred embodiment of the solution according to the invention the diameter D of the holes is identical to the width S of the lower elongated holes.
In further another preferred embodiment of the solution according to the invention the inclination angle a is 40°-50°, preferably 45°. The staircase unit according to the invention is described below with reference to the following drawings:
Fig. 1 shows a possible embodiment of the staircase unit according to the invention with perspective view.
Fig. 2 shows the lateral view of the staircase unit introduced in Fig. 1.
Fig. 3 shows the top view of the staircase unit introduced in Fig. 1.
Fig. 4 shows the front view of the staircase unit 1 introduced in Fig. 1.
Fig. 5 shows a possible embodiment of the flight of stairs assembled from staircase units 1 according to the invention.
Fig. 1 shows a possible embodiment of the staircase unit 1 according to the invention with perspective view. The figure shows the staircase unit 1 formed with fitting plates 2, 3 at its two sides, and stair tread 4 is fastened in a known manner between the fitting plates 2, 3. In this case the stair tread 4 has a grated arrangement. A leading safety edge 5 with antiskid elements 11 is located at the outside edge 33 of the stair tread 4.
The figure furthermore shows the two holes 10 in each of the connecting extensions 12, 13 of the fitting plates 2, 3, and there are elongated holes 8, 9 in their fastening parts 22, 23, and upper elongated holes 6, 7 are formed in parallel with the plane of the stair tread 4. If required, railing elements can be fastened in the upper elongated holes 6, 7 with the help of bolts 24.
Fig. 2 shows the lateral view of the staircase unit 1 introduced in Fig. 1. The figure shows the staircase unit 1 together with the fitting plate 3 and the stair tread 4. The leading safety edge 5 established with antiskid elements 11 can be seen at the outside edge 33 of the stair tread 4.
The figure further shows the that there are two holes 10 having diameter D formed in the connecting extension 13 of the fitting plate 3 with axis tl , the centers of which holes 10 are located at a distance K1 in a direction perpendicular to the axis tl, and are located at a distance K2 in a direction parallel with the axis tl . The distance K2 of the holes 10 is determined in a way that K2+D< LI. The figure shows the lower elongated holes 8, 9, which have a length LI and a width S with axes t2, t3 formed in the fastening part 23 where the axes t2 and t3 have a distance K1 from each other.
The figure shows the upper elongated holes 6, 7, which are aligned in parallel with the stair tread 4 and have a length L2 and a width S.
The figure shows that the lower elongated holes 8, 9 and the axis tl of the connecting extension 13 are aligned with an inclination angle a relative to the horizontal plane of the stair tread 4 and the edge 14, which inclination angle a determines the angle of the flight of stairs.
Fig. 3 shows the top view of the staircase unit 1 introduced in Fig. 1. The figure shows the staircase unit 1 and the fitting plates 2, 3 together with the connecting extensions 12, 13, as well as the leading safety edge 5 formed with antiskid elements 11 on the stair tread 4.
Fig. 4 shows the front view of the staircase unit 1 introduced in Fig. 1. The figure shows the staircase unit 1 together with the fitting plates 2, 3, as well as the leading safety edge 5 with antiskid elements 11.
Fig. 5 shows a possible embodiment of the flight of stairs assembled from staircase units 1 according to the invention. The figure shows a flight of stairs which consists of five staircase units fastened together with the help of bolts 24. The figure shows that the lower initial staircase unit 1 is attached to the lower fastening elements 25 by means of bolts 24, and the lower fastening elements 25 are attached to the horizontal support 31 in a known manner, e.g. by means of bolting with the help of holes 29 formed in it. The upper staircase unit 1 is attached to the fastening parts 27 of the upper fastening elements 26 by means of bolts 24, while the upper fastening elements 26 are attached to the recipient vertical surface 32 in a known manner, e.g. by means of bolts passed through holes 30 formed in them.
The figure shows that staircase units 1 are attached to one another, so that the connecting extensions 12, 13 formed in the fitting plates 2, 3 of the lower staircase unit 1 having holes 10 are oriented towards the lower elongated holes 8, 9 formed in the fastening parts 23 of the staircase unit 1 located above, and are fixed together with the help of bolts 24.
The figure furthermore shows the bolts 24 are screwed into the upper elongated holes 6, 7 formed in the fitting plate 3.
In a possible embodiment of the staircase unit according to the invention the identically configured fitting plates 2, 3 are established first. The fitting plate 3 is formed with edge 14, connecting extension 13 and fastening part 23, so that two holes 10 having diameter D are prepared in each connecting extension 13, and two parallel lower elongated holes 8, 9 having a length LI and a width S are created in the fastening part 23.
The axis tl of the connecting extension 13 is aligned with an angle a relative to the edge 14 and the upper elongated holes 6, 7. The centers of each two holes 10 are located at a distance K1 from each other, and the distance between the axes of lower elongated holes 8, 9 is also Kl . The holes 10 and the lower elongated holes 8, 9 are formed in a way that the diameter D of holes 10 is identical to the width S of the lower elongated holes 8, 9, i.e. D = S.
The two upper elongated holes 6, 7 having length L2 are formed in parallel with the edge 14 of the fitting plate 3, where the width S of the upper elongated holes 6, 7 is preferably identical to the width S of the lower elongated holes 8, 9.
The fitting plate 2 is formed similarly to the fitting plate 3. Following this the stair tread 4 is formed preferably with a grating. The leading safety edge 5 is created with antiskid elements 11 and is fastened to the outside edge 33 of the stair tread 4.
Then the stair tread 4 having a leading safety edge 5 is fixed with known method, preferably by means of welding between the fitting plates 2, 3. The stair tread 4 is fixed at the area below the upper elongated holes 6, 7 in parallel with the edges 14 of the fitting plates 2, 3.
In a possible embodiment of the staircase unit according to the invention the flight of stairs is established from the staircase units 1 in a way, that the lower initial staircase unit 1 is attached first in a known manner to the lower fastening elements 25 by means of bolts 24 passed through the lower elongated holes 8, 9 formed in the fastening parts 22, 23. The lower fastening element 25 is attached in a known manner to the horizontal support 31.
The subsequent staircase unit 1 is attached to the lower staircase unit 1 so that the connecting extensions 12, 13 formed in the fitting plates 2, 3 of the staircase unit 1 with holes 10 are oriented towards the lower elongated holes 8, 9 formed in the fastening parts 22, 23 of the staircase unit 1 situated above, and are fixed by means of bolts 24.
Each of the subsequent staircase unit 1 is fastened according to the above method.
The topmost staircase unit 1 is attached by means of bolts 24 to the upper fastening elements 26 with the help of its holes 10, while the upper fastening elements 26 are fixed to the vertical surface.
The height of the stair together with the height of the flight of stairs can be determined during the assembling of the staircase units 1, so that the holes 10 of the lower staircase unit 1 can be shifted to the desired distance up to a length L1-(K2+D) along the lower elongated holes 8, 9 having a length LI of the staircase unit 1 situated above when the staircase units 1 are fastened to each other.
Elements of the railing can be attached as required with the help of bolts 24 screwed into the upper elongated holes 6, 7 formed in the fitting plates 2, 3.
The material of the staircase unit 1 according to the invention is steel, preferable structural steel.
The dimensions of the staircase unit 1 according to the invention can be selected according to the requirements, the preferred dimensions being 800x270 and 600x270 mm. The a inclination angle can be 40°-50°, preferably 45°, Kl= 45 mm, K2 =50 mm, Ll= 86,5 mm, L2= 77 mm, S= 16 mm.
Advantages of the staircase unit 1 according to the invention:
- can be assembled quickly and easily,
- assembling does not require professionally qualified personnel,
- moderate weight,
- adjustable length and stair rise with adjustable height,
- can be used at outdoor location, as it does not hold snow,
- corrosion resistant and durable because of its material
- does not require cladding. List of reference items
1 - staircase unit
2 - fitting plate
3 - fitting plate
4 - stair tread
5 - leading safety edge
6 - upper elongated hole
7 - upper elongated hole
8 - lower elongated hole
9 - lower elongated hole 10 - hole
11 - antiskid element
12 - connecting extension
13 - connecting extension
14 - edge
22 - fastening part
23 - fastening part
24 - bolt
25 - lower fastening element
26 - upper fastening element
27 - fastening part
28 - connecting extension
29 - hole
30 - hole
31 - horizontal support
32 - vertical surface
33 - outside edge

Claims

1. Modular staircase unit, which is established form fitting plates (2, 3) and stair tread
(4), characterized by that the staircase unit (1) is formed with stair tread (4) fixed between identical fitting plates (2, 3) having an edge (14), the axis (tl) of the connecting extensions (12, 13) of whose fitting parts (2, 3) has an angle a relative to the edge (14), and two holes (10) having diameter D are formed in each connecting extensions (12, 13) in a way, that the centers of holes (10) aligned in parallel with axis (tl) are located at a distance K2 relative to each other, while the centers of holes (10) are aligned perpendicularly to the axis (tl) and are located at a distance K1 relative to each other, furthermore, the lower elongated holes (8, 9) are formed with a length LI and a width S in the fastening parts (22, 23) of the fitting plates (2, 3), where the distance between the axes (t2, t3) of elongated holes (8, 9) is Kl, and the axes (t2, t3) are aligned at an angle a relative to the edges (14) of the fitting plates (2, 3), furthermore, the upper elongated holes (6, 7) having a width S and a length L2 are formed beneath the edges (14) of the fitting plates (2, 3), and the stair tread (4) is fastened in parallel with the edges (14) of the fitting plates (2, 3) beneath the upper elongated holes (6, 7).
2. Staircase unit according to claim 1, characterized by that the stair tread (4) is made as a grating.
3. Staircase unit according to claims 1 or 2, characterized by that a leading safety edge
(5) with antiskid elements (11) is fastened to the outside edge (33) of the stair tread (4).
4. Staircase unit according to any of the claims 1 - 3, characterized by that the length LI of the lower elongated holes (8, 9) is larger than or equal to the cumulative length of distance K2 and diameter D of the holes (10).
5. Staircase unit according to any of the claims 1 - 4, characterized by that the diameter D of the holes (10) is identical to the width S of the lower elongated holes (8, 9).
6. Staircase unit according to any of the claims 1 - 5, characterized by that the inclination angle a is 40°-50°, preferably 45°.
PCT/HU2020/000023 2019-07-11 2020-07-10 Modular staircase unit WO2021005385A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HUU1900136 2019-07-11
HUU1900136U HU5149U (en) 2019-07-11 2019-07-11 Modular stair element

Publications (1)

Publication Number Publication Date
WO2021005385A1 true WO2021005385A1 (en) 2021-01-14

Family

ID=71138476

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU2020/000023 WO2021005385A1 (en) 2019-07-11 2020-07-10 Modular staircase unit

Country Status (2)

Country Link
HU (1) HU5149U (en)
WO (1) WO2021005385A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3505688A1 (en) * 1985-02-19 1986-08-21 Otto 5223 Nümbrecht Raschke Load-bearing structure for a self-supporting stairway
US20090205267A1 (en) * 2008-02-19 2009-08-20 I-Stair Systems Stair stringer assembly
EP2261439A2 (en) * 2009-06-11 2010-12-15 Mast S.R.L. Structural plate component for modular staircases and method of obtaining the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3505688A1 (en) * 1985-02-19 1986-08-21 Otto 5223 Nümbrecht Raschke Load-bearing structure for a self-supporting stairway
US20090205267A1 (en) * 2008-02-19 2009-08-20 I-Stair Systems Stair stringer assembly
EP2261439A2 (en) * 2009-06-11 2010-12-15 Mast S.R.L. Structural plate component for modular staircases and method of obtaining the same

Also Published As

Publication number Publication date
HU5149U (en) 2020-06-29

Similar Documents

Publication Publication Date Title
AU2018203036B2 (en) Stair modules which co operate to form a temporary stair case
EP0022874B1 (en) Suspended scaffolding
US3299590A (en) Prefabricated, adjustable stairway, ramp or bridge
AU770926B2 (en) Adjustable stairway for use with an overcast in a mine
US20090293385A1 (en) Boltless Metal Stair Step System for Indoor/Outdoor Staircase Installation
BRPI0713495A2 (en) ladder for use in construction
US20050284043A1 (en) Stair system with expandable center
US4631880A (en) Adjustable staircases
WO2021005385A1 (en) Modular staircase unit
WO1989002506A1 (en) Step forming method and means
ES2358942B1 (en) ADJUSTABLE ENTREPLANTA.
US3307653A (en) Demountable stairway unit
US3994113A (en) Stairs and railing system for multi-floored buildings and method of constructing same
CA1178773A (en) Stair structure for storage bins
RU144122U1 (en) LADDER (OPTIONS)
US4050203A (en) Stairs and railing system for multi-floored buildings and method of constructing same
WO2020198786A1 (en) Step module for stairs
US11725391B2 (en) Modular staircase and method of constructing same
AU2021209261A1 (en) Stair Stringer
US20160024800A1 (en) Bracket for use in construction of a balustrade
CN216380733U (en) Telescopic stair
WO2020035658A1 (en) Safety barrier
JP3626242B2 (en) Multi-stage construction method of temporary staircase with landing in shaft
GB2064615A (en) Prefabricated metal steps
AU2017201385B2 (en) Temporary stairway assembly with void cover

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20775924

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20775924

Country of ref document: EP

Kind code of ref document: A1