EP0942144A2 - Marchepied modulaire pour échelles préfabriquées autoportantes et échelle ainsi obtenue - Google Patents

Marchepied modulaire pour échelles préfabriquées autoportantes et échelle ainsi obtenue Download PDF

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Publication number
EP0942144A2
EP0942144A2 EP99104783A EP99104783A EP0942144A2 EP 0942144 A2 EP0942144 A2 EP 0942144A2 EP 99104783 A EP99104783 A EP 99104783A EP 99104783 A EP99104783 A EP 99104783A EP 0942144 A2 EP0942144 A2 EP 0942144A2
Authority
EP
European Patent Office
Prior art keywords
modular unit
unit according
ladder
elements
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.)
Granted
Application number
EP99104783A
Other languages
German (de)
English (en)
Other versions
EP0942144B1 (fr
EP0942144A3 (fr
Inventor
Massimo Mastella
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.)
MASTELLA, MASSIMO
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0942144A2 publication Critical patent/EP0942144A2/fr
Publication of EP0942144A3 publication Critical patent/EP0942144A3/fr
Application granted granted Critical
Publication of EP0942144B1 publication Critical patent/EP0942144B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • 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
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
    • E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
    • E06C1/10—Sections fitted end to end

Definitions

  • the present invention relates to a prefabricated structure for outward and inward environment and, more specifically, it relates to a modular step unit for making modular ladders.
  • the mentioned prefabricated ladders are provided for use in public and private environments, and they can be of a right plan type, a curved, ellipsoidal, ovoidal and mixed plan type.
  • a lot of prior self-supporting ladders comprise a plurality of prefabricated metal elements of different shapes which are assembled to one another partially in an assembling shop, partially on the installing field, by removable coupling or connecting elements, such as screws, bolts, to allow them to be easily shipped and assembled-disassembled in very short times.
  • Such a construction also allows to reduce to a minimum the number of standardized components, thereby also reducing the managing and storing costs for the makers thereof.
  • a drawback of prior commercially available prefabricated ladders is that said ladders are excessively resilient because they are formed by individual metal sheet elements which are mutually coupled by coupling screws or nails.
  • these prior constructions would be subjected to excessive oscillations and vibrations making said construction unstable and unsafe, and, accordingly, uncomfortable in use.
  • the mentioned highly resilient nature would reduce the structural strength thereof, with the requirement of adding stabilizing middle elements.
  • prior prefabricated ladder constructions A further drawback of prior prefabricated ladder constructions is that in these prior ladders it is not possible to precisely adjust the rise or height of the ladder steps, and, accordingly, of the overall step, mainly on the installing field and, for providing such a fine adjustment, prior ladder constructions usually comprise a lot of specially designed additional elements with a consequent increasing of the assembling time and cost.
  • the aim of the present invention is to overcome or at least alleviate the above mentioned drawbacks, by providing a modular step unit and a prefabricated ladder construction having a highly rigid structure, and which can be simply and quickly assembled and installed, while providing a very good aesthetic aspect.
  • a main object of the present invention is to provide such a step modular allowing to reduce the oscillations and vibrations affecting prior ladder constructions, while enlarging the net distance of the ladder bearing elements, and eliminating the requirements of providing middle supporting elements.
  • Yet another object of the present invention is to provide a modular step unit allowing to easily and quickly adjust the heights of the individual ladder steps.
  • a modular step unit specifically designed for self-supporting metal ladders, comprising a pair of side supporting constructions, which support a flat step element.
  • Connecting means are moreover provided for connecting each unit to an adjoining unit in order to define a self-supporting ladder ramp, said ladder ramp being characterized in that each supporting construction comprises at least a substantially vertical inner element arranged between and rigidly coupled to at least a pair of outer substantially horizontal elements; at least an inner element being adapted to be coupled to at least a pair of outer elements pertaining to an adjoining modular unit by a height adjustable coupling device in order to provide a variable height ladder ramp.
  • a prefabricated self-supporting ladder comprises a series of modular units as above indicated, wherein each modular unit comprises a pair of side supporting constructions supporting a flat step, characterized in that each construction comprises at least a substantially vertical inner element arranged between and rigidly coupled to at least a pair of substantially horizontal outer elements; at least an inner element being coupled to at least a pair of outer elements pertaining to an adjoining modular unit by a height adjustable coupling device.
  • a self-supporting ladder construction which has been generally indicated by the reference number 1, comprises a plurality of modular step units, each indicated by the reference number 2, which are mutually coupled so as to provide a continuous type of construction.
  • Each modular unit 2 comprises a pair of side supporting or bearing structures, indicated by the reference number 3, which, at the end portions thereof support a respective flat ladder step 43, possibly through one or more cross-members 4a.
  • each side supporting structure 3 is a "sandwich" type of structure, including adjoining elements, and comprising at least an inner element 5, which substantially vertically extends between a pair of substantially horizontally extending outer element pair 6.
  • the inner elements 5 are provided in a number of two and are arranged between the pair of outer elements 6.
  • the elements 5, 6 are constituted by essentially flat plates, formed from alloy steel (38NCD4) or stainless steel (AISI 316), having a thickness from about 8 to 12 mm, which have been automatically cut, for example by using a laser cutting apparatus.
  • Both the inner elements 5 and outer elements 6 have a very simple elongated plan configuration, for example of approximatively rectangular shape, thereby allowing very quick and precise cutting operations to be performed.
  • the cut elements could be also subjected to a plurality of surface finishing treatments, for providing said elements with a desired aesthetic final aspect.
  • each outer element 6 is provided with a cross lug 7 extending from a longitudinal end portion of a major side thereof, and facing downwardly, as the element is in a full assembled condition.
  • each structure 3 is rigidly coupled by fixed coupling or connecting elements arranged at adjoining end portions thereof, thereby their middle axes extend in substantially perpendicular directions and their extension planes being substantially vertical.
  • the inner elements 5 are provided with a pair of terminal circular holes 8, cooperating with corresponding circular holes 9 of like diameters, formed at an end of the outer elements 6.
  • the centers of the holes 8, 9 are arranged on a segment which is slanted at about 45° with respect to the middle axes of the elements 5, 6.
  • the fixed coupling elements 10 each comprise a cylindric pin 11, having a diameter slightly less than that of the holes 8, provided with end threads, on which cylindric or tapering head clamping screws 12, 13 are engaged, said clamping screws being provided with respective flat face.
  • the outer elements 6 are provided with counter-shaped cylindric or tapering seats or recesses for housing therein, in a not to the view exposed manner, the corresponding heads or screws 12, 13, thereby their flat outer faces are flush with the outer surfaces of the elements 6, to provide a continuous visual aspect and overcoming any gaps as due to possible projecting screws.
  • an anchoring bracket 15 for anchoring each cross-member 4a could be affixed to a face of the outer elements 6 adjoining the ladder step 4.
  • spacing washers 14 provided for holding the several assembled elements at a set mutual distance. This distance, together with the several adjoining elements, will operate to increase the inertial momentum of the assembled construction 3, thereby providing the overall unit a high constructional stiffness.
  • This high constructional stiffness will provide the unit 2 and assembled ladder construction with a very great resistance to oscillations and vibrations, much greater than in prior ladder constructions, thereby providing a ladder construction which can be comfortably used.
  • each supporting structure 3 and an adjoining supporting structure 3', 3'', 3''' ...3 n a lot of height adjustable coupling devices, generally indicated by the reference number 16, have been provided, in order to change the rise or height of the modular unit 2 and, accordingly, of the overall ladder construction 1.
  • said adjustable coupling or connecting devices which have been generally indicated by the reference number 15, comprise a support element or insert 17, made starting from a cylindric washer provided with milled portions or parallel flat faces 18. Along the end circular edges thereof, the insert 17 is provided with steps 19 defining coupling contours.
  • the insert 17 is provided with a vertical symmetry plane V and a horizontal symmetry plane C, with a central axis A.
  • a slotted hole 20 extending along the direction of the plane V is formed, said slotted hole having a diameter slightly greater than the outer diameter of the pins 11.
  • a plurality of tooth arrangements 21 are provided, including symmetrical and parallel teeth, which are symmetrically arranged with respect to the symmetry plane C.
  • the tooth arrangements 19, 25 can be mutually engaged thereby locking said arrangements after having set their height mutual positions.
  • the mutual position of this components can be displaced, with a maximum degree, either upwardly or downwardly, by turning through 180° the plate 23 about its turning axis B.
  • the elements 6', 6'', 6''' would be provided with respective lugs 7', 7'', 7''' having different heights D', D'', D''', in order to provide different height adjusting ranges.
  • each structure it would be possible to support suitable supporting elements for corresponding uprights 26 of a parapet or guard rail 27.
  • modular step units 2c which, though conceptually similar to the preceding modular units, would be constituted by inner 3i and outer 3e bearing structures of different configuration and length, supporting at the end portions thereof ladder steps 4c having a substantially trapezoidal or circular segment plan configuration.
  • the outer elements 6c will have a different construction, both with respect to the different extension of said elements 6c and due to the provision thereon of bent portions along one or more vertical lines 28, 29.
  • the height of the ladder construction can be easily and quickly varied without affecting the geometrical configuration of the prefabricated components.
  • the modular unit according to the present invention allows to easily made plate-like vertical modular units 5, in which suitable slots 22 delimited by two vertical portions and two curved portions with a convexity respectively facing upward and downward would be formed, thereby providing likewise contoured insert 43 to be provided with corresponding holes at set levels, with respect to the longitudinal extension of said inserts 43.
  • the inserts 43 would be directly formed by shearing or cutting operations on vertical plate-like modular units 5, which would be provided with calibrated housing seats 22 for engaging therein the mentioned inserts 43.
  • Said inserts would be provided with a plurality of holes arranged at the center thereof, or at a top and/or bottom position with respect to the longitudinal extension of said inserts 43 thereby allowing to easily adjust the height of the individual ladder steps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Steps, Ramps, And Handrails (AREA)
EP99104783A 1998-03-12 1999-03-10 Marchepied modulaire pour échelles préfabriquées autoportantes Expired - Lifetime EP0942144B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI980052 1998-03-12
IT98VI000052A ITVI980052A1 (it) 1998-03-12 1998-03-12 Unita' di gradino modulare per scale prefabbricate autoportanti, non che' scala prefabbricata autoportante incorporante tale unita'.

Publications (3)

Publication Number Publication Date
EP0942144A2 true EP0942144A2 (fr) 1999-09-15
EP0942144A3 EP0942144A3 (fr) 2000-06-07
EP0942144B1 EP0942144B1 (fr) 2004-08-04

Family

ID=11426630

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104783A Expired - Lifetime EP0942144B1 (fr) 1998-03-12 1999-03-10 Marchepied modulaire pour échelles préfabriquées autoportantes

Country Status (5)

Country Link
EP (1) EP0942144B1 (fr)
AT (1) ATE272784T1 (fr)
DE (1) DE69919053T2 (fr)
ES (1) ES2226218T3 (fr)
IT (1) ITVI980052A1 (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1243715A3 (fr) * 2001-03-20 2002-12-04 Renato Mastella Structure de poutre lamellaire
EP2025828A1 (fr) * 2007-07-30 2009-02-18 Fondazione di' Persona Escalier
CN100462514C (zh) * 2007-02-09 2009-02-18 陈兆红 一种组合式楼梯支架的连接板及组合式楼梯支架
WO2009153762A3 (fr) * 2008-06-20 2010-04-15 Mast S.R.L. Structure de cage d’escalier et joint structurel pour obtenir des cages d'escalier
ITVR20090085A1 (it) * 2009-06-11 2010-12-12 Mast S R L Elemento strutturale lastriforme per scale modulari e procedimento per l'ottenimento dello stesso nonche' unita' di fiancata per scale ottenuta con tale elemento strutturale.
EP2261439A2 (fr) 2009-06-11 2010-12-15 Mast S.R.L. Composant de plaque structurelle pour escaliers modulaires et son procédé d'obtention
US8499506B2 (en) * 2007-10-02 2013-08-06 Alessandro Maltini Modular element for making fixed ladders
WO2014037968A1 (fr) * 2012-09-05 2014-03-13 Pivetta Daniele Module de limon pour escaliers autoportants
WO2014121344A3 (fr) * 2013-02-11 2014-10-02 John Preston Modules de marche coopérant pour former un escalier temporaire
CN104775750A (zh) * 2015-04-06 2015-07-15 陈超 一种剪叉式梯子
RU178962U1 (ru) * 2017-07-27 2018-04-24 Дмитрий Викторович Кучук Составная косоурная лестница
CN110005150A (zh) * 2019-04-28 2019-07-12 安徽军瑶新型材料有限公司 一种多段平移式装配建筑楼梯
CN111549988A (zh) * 2020-05-31 2020-08-18 长沙新气象自动化技术有限公司 一种用于装配式建筑的组装式楼梯
RU214025U1 (ru) * 2021-11-17 2022-10-07 Дмитрий Викторович Кучук Марш составной косоурной лестницы
CN115596165A (zh) * 2022-10-25 2023-01-13 浙江蓝城卓时建筑环境设计有限公司（Cn） 一种可调节适老化的台阶
AU2017201385B2 (en) * 2017-02-28 2024-03-07 Buildsafe Equipment Sales Pty Ltd Temporary stairway assembly with void cover
EP4644634A1 (fr) * 2024-04-29 2025-11-05 Fondazione di' Persona Escalier en kit avec marche alternative

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006029431B3 (de) * 2006-06-27 2007-10-25 Markus Kynast Treppe mit höhenverstellbaren Stufen
CN109457881A (zh) * 2018-12-14 2019-03-12 成都建工工业化建筑有限公司 一种装配式建筑物的楼梯及其制作工艺

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB151487A (en) 1919-10-14 1920-09-30 William Andrew Sydne Hall Step ladder
FR604662A (fr) 1925-09-16 1926-05-11 Escaliers métalliques
FR893503A (fr) 1941-05-26 1944-07-30 échelle-escalier repliable
FR2065332A5 (fr) 1969-10-13 1971-07-23 Sibenaler Nicolas
CH554998A (de) 1972-10-31 1974-10-15 Arcia Sa Echelle pliante.
BE872495A (fr) 1978-12-04 1979-03-30 Willemsens Albert H Escalier tournant
EP0060014A1 (fr) 1981-01-21 1982-09-15 GRS International Inc., Volée d'escalier autoportante et modulaire
US4355700A (en) 1981-02-17 1982-10-26 Matthews Wesley D Modular stairway system for installation on structures having non-linear walls
DE3505688A1 (de) 1985-02-19 1986-08-21 Otto 5223 Nümbrecht Raschke Tragekonstruktion fuer eine freitragende treppe
FR2597909A1 (fr) 1986-04-25 1987-10-30 Abello Jean Baptiste Escalier demontable en bois et a faux limon

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8322106U1 (it) * 1983-06-13 1984-12-13 Lissidini Sandro Struttura di elemento modulare, per la realizzazione di scale in genere.
DE8913058U1 (de) * 1989-11-04 1989-12-14 Uhl, Alfons, Dr., 8860 Nördlingen Bausatz für den Holm einer freitragenden Treppe
IT1279005B1 (it) * 1995-03-21 1997-12-02 Renato Mastella Scala metallica con struttura portante ad elementi modulari ad elevata semplicita' di assemblaggio

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB151487A (en) 1919-10-14 1920-09-30 William Andrew Sydne Hall Step ladder
FR604662A (fr) 1925-09-16 1926-05-11 Escaliers métalliques
FR893503A (fr) 1941-05-26 1944-07-30 échelle-escalier repliable
FR2065332A5 (fr) 1969-10-13 1971-07-23 Sibenaler Nicolas
CH554998A (de) 1972-10-31 1974-10-15 Arcia Sa Echelle pliante.
BE872495A (fr) 1978-12-04 1979-03-30 Willemsens Albert H Escalier tournant
EP0060014A1 (fr) 1981-01-21 1982-09-15 GRS International Inc., Volée d'escalier autoportante et modulaire
US4355700A (en) 1981-02-17 1982-10-26 Matthews Wesley D Modular stairway system for installation on structures having non-linear walls
DE3505688A1 (de) 1985-02-19 1986-08-21 Otto 5223 Nümbrecht Raschke Tragekonstruktion fuer eine freitragende treppe
FR2597909A1 (fr) 1986-04-25 1987-10-30 Abello Jean Baptiste Escalier demontable en bois et a faux limon

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1243715A3 (fr) * 2001-03-20 2002-12-04 Renato Mastella Structure de poutre lamellaire
CN100462514C (zh) * 2007-02-09 2009-02-18 陈兆红 一种组合式楼梯支架的连接板及组合式楼梯支架
EP2025828A1 (fr) * 2007-07-30 2009-02-18 Fondazione di' Persona Escalier
AU2008306221B2 (en) * 2007-10-02 2014-12-18 Alessandro Maltini Modular element for making fixed ladders
US8499506B2 (en) * 2007-10-02 2013-08-06 Alessandro Maltini Modular element for making fixed ladders
WO2009153762A3 (fr) * 2008-06-20 2010-04-15 Mast S.R.L. Structure de cage d’escalier et joint structurel pour obtenir des cages d'escalier
ITVR20090085A1 (it) * 2009-06-11 2010-12-12 Mast S R L Elemento strutturale lastriforme per scale modulari e procedimento per l'ottenimento dello stesso nonche' unita' di fiancata per scale ottenuta con tale elemento strutturale.
EP2261439A2 (fr) 2009-06-11 2010-12-15 Mast S.R.L. Composant de plaque structurelle pour escaliers modulaires et son procédé d'obtention
WO2014037968A1 (fr) * 2012-09-05 2014-03-13 Pivetta Daniele Module de limon pour escaliers autoportants
WO2014121344A3 (fr) * 2013-02-11 2014-10-02 John Preston Modules de marche coopérant pour former un escalier temporaire
EP2954128A4 (fr) * 2013-02-11 2017-03-22 PRESTON, John Clement Modules de marche coopérant pour former un escalier temporaire
CN105189887A (zh) * 2013-02-11 2015-12-23 约翰·普雷斯顿 配合形成临时楼梯的阶梯模块
US9499991B2 (en) 2013-02-11 2016-11-22 John Preston Stair modules which co operate to form a temporary stair case
CN104775750A (zh) * 2015-04-06 2015-07-15 陈超 一种剪叉式梯子
AU2017201385B2 (en) * 2017-02-28 2024-03-07 Buildsafe Equipment Sales Pty Ltd Temporary stairway assembly with void cover
RU178962U1 (ru) * 2017-07-27 2018-04-24 Дмитрий Викторович Кучук Составная косоурная лестница
CN110005150A (zh) * 2019-04-28 2019-07-12 安徽军瑶新型材料有限公司 一种多段平移式装配建筑楼梯
CN111549988A (zh) * 2020-05-31 2020-08-18 长沙新气象自动化技术有限公司 一种用于装配式建筑的组装式楼梯
RU214025U1 (ru) * 2021-11-17 2022-10-07 Дмитрий Викторович Кучук Марш составной косоурной лестницы
CN115596165A (zh) * 2022-10-25 2023-01-13 浙江蓝城卓时建筑环境设计有限公司（Cn） 一种可调节适老化的台阶
EP4644634A1 (fr) * 2024-04-29 2025-11-05 Fondazione di' Persona Escalier en kit avec marche alternative

Also Published As

Publication number Publication date
DE69919053T2 (de) 2005-07-28
DE69919053D1 (de) 2004-09-09
ATE272784T1 (de) 2004-08-15
EP0942144B1 (fr) 2004-08-04
EP0942144A3 (fr) 2000-06-07
ES2226218T3 (es) 2005-03-16
ITVI980052A1 (it) 1999-09-12

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