EP1411183A2 - Adjustable metal staircase - Google Patents

Adjustable metal staircase Download PDF

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Publication number
EP1411183A2
EP1411183A2 EP03425570A EP03425570A EP1411183A2 EP 1411183 A2 EP1411183 A2 EP 1411183A2 EP 03425570 A EP03425570 A EP 03425570A EP 03425570 A EP03425570 A EP 03425570A EP 1411183 A2 EP1411183 A2 EP 1411183A2
Authority
EP
European Patent Office
Prior art keywords
members
staircase
staircase according
arms
pair
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Withdrawn
Application number
EP03425570A
Other languages
German (de)
French (fr)
Other versions
EP1411183A3 (en
Inventor
Luigi Fogliani
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.)
Fae Industria Alloggi Prefabbricati SpA
Original Assignee
Fae Industria Alloggi Prefabbricati SpA
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 Fae Industria Alloggi Prefabbricati SpA filed Critical Fae Industria Alloggi Prefabbricati SpA
Publication of EP1411183A2 publication Critical patent/EP1411183A2/en
Publication of EP1411183A3 publication Critical patent/EP1411183A3/en
Withdrawn legal-status Critical Current

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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

Definitions

  • the present invention relates essentially to the field of prefabricated houses and particularly a staircase of metal carpentry consisting of fitted modular units designed to be easily assembled by bolting. This facilitates at most the transport and the assembling on the spot.
  • Stairs to enter prefabricated houses are presently known and have to be made to measure by arranging the requested height, inclination and number of steps beforehand in workshop.
  • One object of the present invention is to provide stairs for the above-mentioned use, characterized in that they consist of fitted modular units to be assembled on the spot, without the need of arranging "ad hoc" parts for any application.
  • a second object of the invention is to provide stairs of different size and types by adding and taking away easily single fitted units.
  • a third object is to allow the rise to be adjusted so that the staircase can be arranged for any difference of height. This is accomplished by providing suitable slotted holes to adjust the height of each step.
  • the modular staircase of the present invention consists essentially of a pair of side base members B, a pair of footpace supporting members PP for each footpace, to which a pillar or upright C provided with upper support arms for such pair of footpace supporting members PP, and a plurality of steps, each of them has in combination: a pair of step supporting end members PG, a step G, one or more side banisters P.
  • base members B are bolted to the lower arms of the step supporting members PG of the lower step of the staircase, after having bolted the corresponding step G thereto.
  • each step supporting member PG is essentially Z-shaped, the central horizontal portion of which supports step G, and the lower and upper arms perpendicular to the central connecting portion are directed downwards and upwards, respectively. At least one of such vertical arms is provided with such pair of elongated holes or vertical slots F adjusting the rise, in which the securing bolts are fitted.
  • each footpace supporting member PP is different from the corresponding step supporting members PG only by the greater length of its horizontal central portion.
  • each pair of modular units (figures 3 and 4) forming the steps and the footpaces of the staircase according to the invention consist of two (right and left, respectively) members specular to each other.
  • banisters P consist of tubular "U"-bent members welded to a lower plate provided with mounting holes
  • the base members B, the step supporting members PG, and the footpace supporting members PP are preferably provided with profiles having a "C"-shaped section to ensure the rigidity.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)

Abstract

The invention relates to a modular, adjustable metal staircase characterized in that it includes fitted modular units to be assembled on the spot without the need of arranging "ad hoc" parts for any application.
In order to allow the rise to be adjusted so that the staircase can be arranged for any difference of height, suitable slotted holes are provided to adjust the height of each step.

Description

  • The present invention relates essentially to the field of prefabricated houses and particularly a staircase of metal carpentry consisting of fitted modular units designed to be easily assembled by bolting. This facilitates at most the transport and the assembling on the spot.
  • Stairs to enter prefabricated houses are presently known and have to be made to measure by arranging the requested height, inclination and number of steps beforehand in workshop.
    One object of the present invention is to provide stairs for the above-mentioned use, characterized in that they consist of fitted modular units to be assembled on the spot, without the need of arranging "ad hoc" parts for any application.
    A second object of the invention is to provide stairs of different size and types by adding and taking away easily single fitted units.
    A third object is to allow the rise to be adjusted so that the staircase can be arranged for any difference of height. This is accomplished by providing suitable slotted holes to adjust the height of each step.
  • A better understanding of the invention will result from the following detailed description with reference to the accompanying drawings that show a preferred embodiment thereof only by way of a not limiting example.
    In the drawings:
  • Figure 1 shows some different types of stairs according to the invention;
  • Figure 2 shows a section view of the base members which the stairs consist of;
  • Figure 3 shows the assembling system of base member, step supporting member, and banisters;
  • Figure 4 similar to the preceding Figure shows the modular footpace supporting member.
  • With reference to the Figures listed above, the modular staircase of the present invention consists essentially of a pair of side base members B, a pair of footpace supporting members PP for each footpace, to which a pillar or upright C provided with upper support arms for such pair of footpace supporting members PP, and a plurality of steps, each of them has in combination: a pair of step supporting end members PG, a step G, one or more side banisters P.
    According to the invention, base members B are bolted to the lower arms of the step supporting members PG of the lower step of the staircase, after having bolted the corresponding step G thereto. Thereafter, the following steps are secured by bolts to such lower step, and the rise is adjusted by suitable slotted holes F according to the requirements and the height to be reached according to the number of steps to be installed. The banister members P are secured to the ends of each step, even if it is evident that only one banister P can be installed for each step in case the flight of the staircase is close to a wall.
    As can be clearly seen in the figures, each step supporting member PG is essentially Z-shaped, the central horizontal portion of which supports step G, and the lower and upper arms perpendicular to the central connecting portion are directed downwards and upwards, respectively. At least one of such vertical arms is provided with such pair of elongated holes or vertical slots F adjusting the rise, in which the securing bolts are fitted.
    In the embodiment shown such securing and adjusting slots F are preferably arranged only in the upper arm directed upwards of each step supporting member PG, the base members B being provided with similar vertical slots.
    It should be noted according to the present invention that each footpace supporting member PP is different from the corresponding step supporting members PG only by the greater length of its horizontal central portion.
    At last, it should appreciated that each pair of modular units (figures 3 and 4) forming the steps and the footpaces of the staircase according to the invention consist of two (right and left, respectively) members specular to each other.
  • Therefore, it is evident that the present invention provides flights and relative banisters with heights that can be easily modified according to specific requirements.
    In the embodiment shown, banisters P consist of tubular "U"-bent members welded to a lower plate provided with mounting holes, and the base members B, the step supporting members PG, and the footpace supporting members PP are preferably provided with profiles having a "C"-shaped section to ensure the rigidity.
    The present invention has been described and illustrated according to a preferred embodiment thereof, however, it should be understood that those skilled in the art can make a number of functionally and/or technically equivalent modifications without departing from the scope of the present industrial invention.

Claims (12)

  1. Modular, adjustable metal staircase characterized in that it includes fitted modular units to be assembled on the spot without the need of arranging "ad hoc" parts for any application.
  2. Staircase according to claim 1, characterized in that in order to allow the rise to be adjusted so that the staircase can be arranged for any difference of height, suitable slotted holes are provided to adjust the height of each step.
  3. Staircase according to any preceding claim, characterized in that it consists essentially of:
    a pair of base side members (B);
    a pair of footpace supporting members (PP) for each footpace, to which a pillar or upright (C) provided with upper supporting arms for said pair of footpace supporting members (PP) is associated; and
    a plurality of steps, each of them has in combination: a pair of step supporting end members (PG), a step (G), one or more side banisters (P).
  4. Staircase according to the preceding claim, characterized in that the base members (B) are bolted to the lower arms of the step supporting members (PG) of the lower step of the staircase, after having bolted the corresponding step (G) thereto, the following steps being then secured by bolts to said lower step, and the rise being adjusted by suitable slotted holes (F) according to the requirements and the height to be reached according to the number of steps to be installed.
  5. Staircase according to the preceding claim, characterized in that the relative banister members (P) are secured to the ends of each step.
  6. Staircase according to any claim from 3 on, characterized in that each step supporting member (PG) is essentially Z-shaped, the central horizontal portion of which supports step (G), and the lower and upper arms perpendicular to the central connecting portion are directed downwards and upwards, respectively.
  7. Staircase according to claims 2 and 6, characterized in that at least one of such vertical arms is provided with a pair of said elongated holes or vertical slots (F) adjusting the rise, in which the securing bolts are fitted.
  8. Staircase according to the preceding claim, characterized in that said securing and adjusting slots (F) are preferably arranged only in the upper arm directed upwards of each step supporting member (PG), and that the base members B are provided with similar vertical slots.
  9. Staircase according to claim 3, characterized in that each footpace supporting member (PP) has a central horizontal elongated portion, from the ends of which two vertical arms are directed upwards and downwards, respectively, said arms being the same as the arms of the step supporting members (PG).
  10. Staircase according to any claim from 3 on, characterized in that each pair of modular units forming the steps and the footpaces consist of two (right and left, respectively) members specular to each other.
  11. Staircase according to any claim from 3 on, characterized in that banisters (P) consist of tubular "U"-bent members welded to a lower plate provided with mounting holes.
  12. Staircase according to any claim from 3 on, characterized in that base members (B), step supporting members (PG), and footpace supporting members (PP) are preferably provided with profiles having a "C"-shaped section to ensure the rigidity.
EP03425570A 2002-10-15 2003-09-04 Adjustable metal staircase Withdrawn EP1411183A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000524A ITRM20020524A1 (en) 2002-10-15 2002-10-15 ADJUSTABLE METAL LADDER.
ITRM20020524 2002-10-15

Publications (2)

Publication Number Publication Date
EP1411183A2 true EP1411183A2 (en) 2004-04-21
EP1411183A3 EP1411183A3 (en) 2004-12-15

Family

ID=11456531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03425570A Withdrawn EP1411183A3 (en) 2002-10-15 2003-09-04 Adjustable metal staircase

Country Status (2)

Country Link
EP (1) EP1411183A3 (en)
IT (1) ITRM20020524A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100359115C (en) * 2005-03-11 2008-01-02 陈兆红 Combined staircase
GB2594035A (en) * 2020-02-11 2021-10-20 The Regent Engineering Co Walsall Ltd Demountable stairs

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2621939A1 (en) * 1987-10-15 1989-04-21 Lenne Haziza Adjustable, modulable staircase with variable dimensions and height
DE8913058U1 (en) * 1989-11-04 1989-12-14 Uhl, Alfons, Dr., 8860 Noerdlingen, De
EP0380198A1 (en) * 1989-01-27 1990-08-01 Keiichirou Yamazaki A takedown staircase
EP0557837A1 (en) * 1992-02-26 1993-09-01 Helmut Ortolf Construction set for staircases
EP1304424A1 (en) * 2001-10-16 2003-04-23 Bernhard Schuster Overhanging stair with a central stringer and with stair elements adjustable in height

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2621939A1 (en) * 1987-10-15 1989-04-21 Lenne Haziza Adjustable, modulable staircase with variable dimensions and height
EP0380198A1 (en) * 1989-01-27 1990-08-01 Keiichirou Yamazaki A takedown staircase
DE8913058U1 (en) * 1989-11-04 1989-12-14 Uhl, Alfons, Dr., 8860 Noerdlingen, De
EP0557837A1 (en) * 1992-02-26 1993-09-01 Helmut Ortolf Construction set for staircases
EP1304424A1 (en) * 2001-10-16 2003-04-23 Bernhard Schuster Overhanging stair with a central stringer and with stair elements adjustable in height

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100359115C (en) * 2005-03-11 2008-01-02 陈兆红 Combined staircase
GB2594035A (en) * 2020-02-11 2021-10-20 The Regent Engineering Co Walsall Ltd Demountable stairs
GB2594035B (en) * 2020-02-11 2024-04-10 The Regent Engineering Co Walsall Ltd Demountable stairs

Also Published As

Publication number Publication date
ITRM20020524A1 (en) 2004-04-16
EP1411183A3 (en) 2004-12-15
ITRM20020524A0 (en) 2002-10-15

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