WO2007147210A1 - Escalier destiné à être utilisé sur des sites de construction - Google Patents

Escalier destiné à être utilisé sur des sites de construction Download PDF

Info

Publication number
WO2007147210A1
WO2007147210A1 PCT/AU2007/000863 AU2007000863W WO2007147210A1 WO 2007147210 A1 WO2007147210 A1 WO 2007147210A1 AU 2007000863 W AU2007000863 W AU 2007000863W WO 2007147210 A1 WO2007147210 A1 WO 2007147210A1
Authority
WO
WIPO (PCT)
Prior art keywords
run section
stair run
stair
building
landings
Prior art date
Application number
PCT/AU2007/000863
Other languages
English (en)
Inventor
John Clement Preston
Original Assignee
John Clement Preston
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
Priority claimed from AU2006903316A external-priority patent/AU2006903316A0/en
Application filed by John Clement Preston filed Critical John Clement Preston
Priority to AU2007262663A priority Critical patent/AU2007262663A1/en
Priority to CA002655377A priority patent/CA2655377A1/fr
Priority to JP2009515674A priority patent/JP2009541612A/ja
Priority to US12/308,537 priority patent/US20100293875A1/en
Priority to EP07719102A priority patent/EP2029835A4/fr
Priority to BRPI0713495-9A priority patent/BRPI0713495A2/pt
Publication of WO2007147210A1 publication Critical patent/WO2007147210A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G27/00—Temporary arrangements for giving access from one level to another for men or vehicles, e.g. steps, ramps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F1/00—Ground or aircraft-carrier-deck installations
    • B64F1/30—Ground or aircraft-carrier-deck installations for embarking or disembarking passengers
    • B64F1/315—Mobile stairs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • 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

Definitions

  • the present invention relates to stairs, in particular to stairways suitable for temporary erection and use on a building site during construction of a building.
  • Temporary stairways are often required on building sites during construction of a multistorey building to allow construction workers to move from one storey of the building to another.
  • stairways are typically provided at or within the scaffolding structure present on the outside faces of the building.
  • US patent 3,684,057 discloses a portable stairway comprised of step- ladder-like sections which are releasably lockably mounted onto outrigger supports which in turn are releasably lockably secured to the scaffolding's upright struts.
  • Safety side guard rails are hingedly attached to supporting posts which in turn are pivotedly mounted to the step-ladder side frame members.
  • stairways lack floor-height adjustability, ie they are designed for a discrete storey height between the floor levels of a lower and adjacent upper storey.
  • the inclination angle of the stair run section being that part of the stairway which incorporates the plurality of individual steps (each defined by a vertical rise and horizontal run) with regard to the horizontal is mostly confined to discrete values, given that building codes require minimum dimensional safety standards for each step in the stair run.
  • the rise and tread of each individual step may be fixed such that the rise shall not exceed 215mm, whereas the tread shall not have an extension of less than 215mm; industry practice is to use stair rise to tread ratio formulae in making the stair run sections.
  • a portable, modular stairway unit for use on a building site during construction of a multistorey building, the stairway unit including: a stair run section with a plurality of rise-separated stair treads, the stair run section having an upper and a lower end; an upper landing connected to the stair run section at, or at a distance from, the upper end of the stair run section; a lower landing connected to the stair run section at, or at a distance from, the lower end of the stair run section; wherein each of the landings have portions that extend laterally beyond a width of the stair run section, the landings being devised to extend inwardly into respective upper and lower storey levels of the building when the stairway unit is situated adjacent to a face of the building; and anchoring means arranged to removeably secure the landings, in use, at the upper and lower storey levels thereby to provide a double-cantilevered mounting of the stair run section extending between the two store
  • Modular stairways in accordance with the present invention achieve significant cost savings with regards to erection time given that the stairway can be positioned as a pre-assembled unit at an outside location adjacent to the building face, whereupon suitable anchoring of the landings at the upper and lower storeys secure the stairway module in place.
  • At least one of the landings is pivotably secured to the stair run section, to allow the incline of the stair run section, when in use, to be varied. More preferably, each of the landings is hinged to the stair run section, as this will allow the landings to be folded back onto the step section for ease of transport, when the stairway module is not in use.
  • Stairway embodiments incorporating landings that are articulated or hinged at both an upper and lower end of the stair run section allow deployment and use of the same stairway unit at buildings having storey heights (ie distance between floor to floor of adjoining storeys of the building) that vary within a predefined narrow range.
  • some multilevel buildings incorporate floor levels with varying floor to ceiling heights, eg lower levels having a floor to ceiling height of 2,700mm, whereas upper floor levels might have an increased floor-ceiling height of eg 2,900mm.
  • At least one of the landings is secured to the stair run section in such a manner as to allow linear movement along a longitudinal axis of the stair run section, and further including fixing means to secure the landing at a desired position along the stair run section, whereby a distance between the upper and lower landings at the stair run section can be varied and fixed in a desired position.
  • the lower landing is arranged to be held at a fixed angle of inclination with respect to the longitudinal axis of the stair run section, such that the tread and rise of each step are allowed to remain horizontal and vertical, respectively, as the stair run section is moved relative to the landing.
  • the stair run section is devised with a plurality of treads whose incline with respect to the longitudinal axis of the stair run section may be selectively varied and fixed in such a manner that the treads will remain substantially horizontal irrespective of the angle of incline which the stair run section has when extending between adjacent building storeys.
  • the variation of step tread incline is preferentially achieved by providing a linkage mechanism articulating the individual treads to one another in such a manner that variation of the incline angle of the stair run section will resolve in self-adjustment of the treads into a horizontal attitude.
  • the present invention contemplates use of known adjustable stair run section construction principles as illustrated in the aforementioned US patents of Cornell, Lister, Mason and others.
  • the anchoring means are provided by adjustable-height props arranged for loading in compression when extending between the floor and ceiling of a respective storey where the respective landing is to be secured.
  • Use of compression props rather than more conventional anchoring bolts, hooks and loops avoids damage to the building structure, as there is no need to drill into the building structure to provide a fixing point or attachment for the landings of the modular stairway unit.
  • Height adjustable props are known in the construction industry for securing form work prior to and subsequent to casting of building storey slabs. It should be noted, however, that conventional fasteners such as bolts can also be used, eg to temporarily secure the landings in deploying the modular stairway.
  • Figure 1 is a schematic side view of a modular stairway according to one embodiment of the present invention, installed against an exterior face of and between two storeys of a building;
  • Figure 2 is a top view along direction of arrow Il of the stairway of Figure 1 ;
  • Figure 3 is an end view along direction of arrow III of the stairway of
  • Figure 4 is a side view of the stairway of Figure 1 when in a transport or non-deployed position;
  • Figure 5 is a schematic, partial side view, of a height adjustable, modular stairway in accordance with another embodiment of the present invention. DESCRIPTION OF PREFERRED EMBODIMENT
  • Figure 1 shows a modular stairway unit 10 in position at the external face and between an upper storey 12 and a lower storey 14 of a building.
  • the modular stairway unit 10 consists of an upper landing 16, a lower landing 18, a stair run section 20 extending between and connected to the landings 16, 18 and four anchoring members 22a to 22d per landing as described in more detail below.
  • the stair run section 20 essentially includes a plurality of individual treads 24 in the form of boards, with optional risers 26 extending therebetween.
  • the treads 24 are suitably secured and supported at their widthward ends at opposed, tread support bar panels (not shown) in a known manner, for example, that described in US patent 3,788,028.
  • a tread-rise adjustable stair run assembly can be employed, such as that described in US patent 3, 593,821 or US patent 4,768,617, allowing, of course, for the necessary modifications required for incorporation of such type of adjustable stair run assemblies into the concept of the present invention.
  • Figure 1 also illustrates schematically at 28 safety fence structures which are secured to each widthward side of the stair run section 20, thereby providing added security to users of the modular stairway unit; a conventional hand rail can be replaced.
  • the stair run section 20 is manufactured and assembled from materials and components commonly used in portable stairway manufacture.
  • the components are made from sheet and section steel, allowing the stairway 10 to be weatherproof and strong enough to withstand significant loads as experienced during building construction.
  • the two landings 16, 18, essentially rectangular steel plates each have a portion, identified at 16a, 18a, respectively, that protrudes to one side in widthward extension beyond the width of the stair run section 20, ie the landings have outrigger portions that serve to secure the stairway 10 to a building.
  • the landing portions 16a, 18a extend into the building in substantially coplanar horizontal relation with the floor 12a, 14a of the respective floor levels 12 and 14.
  • Both the upper and lower landings 16, 18, are secured in articulated manner (eg using axle hinges) to the upper and lower ends of the stair run section 20, respectively, thereby allowing the entire modular unit to be deployed between building storeys having varying floor 14a to ceiling 14b heights, whilst maintaining horizontal orientation of the lower and upper landings, 18, 16, respectively. It will be appreciated that, depending on the height between ceiling and floor, the inclination angle (i) of the stair run section 20 varies.
  • the entire modular stairway 10 is removably secured such as to be cantilevered at two locations, namely the upper and lower floors 12, 14 by means of a total of eight longitudinally adjustable compression props 22a to 22d of such type as commonly employed in the building trade, for example screw props.
  • the props 22a to 22c consist essentially of a tubular strut with plate footings at the lower terminal end, the opposite upper hollow end of the prop tubes having an internal tread into which externally threaded stems of prop headers are inserted. It is preferred to have the mechanism which allows height adjustment (and tensioning/wedging) of the props to be located at the upper end (header) of the units, to prevent accidental de-tensioning of the props during use of the stairway.
  • a total of four props 22a to 22d is provided per landing 16,18, thereby providing a stable anchoring arrangement at the bottom and top of the stairway unit at the building levels, whereby one prop each is situated close to the comers of the landing platform sections 16a, 18a, thereby to ensure potential bending and deformation of the landings due to the weight of the stairway or the load on the stairway being minimised.
  • the entire arrangement creates a double-cantilever mount of the stair run section 20 at the building.
  • the individual props can be secured to the landings 16, 18 in a known manner, for example by passing the props through suitably dimensioned through holes in the platforms, and then securing the relative position of the platforms 16, 18 with respect to the tubular prop struts. It is preferred that the props will be welded to the landings during manufacture of the system, to provide a wholly prefabricated unit to minimise erection times. It will be immediately appreciated that using props to secure and fix/anchor the modular stairway unit 10 between building storeys makes installation of the entire unit location independent, since there is no need to provide for fixed anchoring/fixing locations in the building structure, for example in the floor slabs.
  • each landing is provided with a L-shaped fence structure 30, 32 on the sides facing away from the building, thereby to ensure safety of the users of the stairway unit, whereby it is noted that the fence 30, 32 extends into the building storeys once the unit is mounted and secured in place.
  • Figure 4 shows the modular stairway in a transport position, where the stair run section 20 extends parallel and horizontal with the landings 16 and 18, thereby facilitating transport of the modular stairway unit on a flatbed truck.
  • the modular, articulated construction of the stairway unit 10 enables the unit to be transported in pre-assembled manner to the building site, where a crane lift may be used to hoist the unit into place at the exterior face of the building.
  • the stair run section 20 is of such type having height adjustable treads to allow use of the same modular unit 10 for varying floor level heights.
  • the hinged arrangement of the top and bottom landings 16, 18 at either end of the stair run section 20 itself is capable of providing a certain degree of adjustability to different floor level heights (within construction tolerances) given that a change in the angle of inclination (i) of the stair run's incline position, where the treads are essentially horizontal, can be varied by a certain amount without making the entire stairway unit unsafe.
  • the widths and angles of the treads and the distances between the treads should preferably abide by relevant building code or standards.
  • the Australian Standard AS 1657-1992 states that stairways shall not be less than 600mm wide, and the angle of slope of the stairway should not be less than 26.5 degrees and not greater than 45 degrees, height of each rise shall be between 150mm-215mm, and length of each tread shall be between 215mm-305mm.
  • Figure 5 illustrates a modified embodiment of that illustrated in Figures 1 to 4. Similar reference numerals are used in Figure 5 to refer to similar components, which will thus not be described in further detail here.
  • the upper landing 16 is hinged to the upper end of stair run section 20, thereby allowing variation of the angle (ii) between the platform 16 and the notional longitudinal plane (or axis) of section 20.
  • the lower landing 18 is secured to the stair run section 20 in such a manner as to allow displacement along the longitudinal axis of section 20 whilst maintaining a generally horizontal attitude of the landing platform 18.
  • the landing platform 18 is provided with a support section 32 defining a sleeve in which the lower terminal end of the stair run section 20 is received for sliding engagement therewith, thereby allowing the entire platform structure 18 to be moved up and down along arrows (iii) along the length of unit 20.
  • Sleeve member 32 is suitably attached to the side plates or bars 34 of stair run section 20, wherein a roller connected to the landing 18 is positioned to allow the landing 18 to move relative to and along bar members 34.
  • a roller connected to the landing 18 is positioned to allow the landing 18 to move relative to and along bar members 34.
  • the landing 18 is immobilised with respect and fixed to the stair run section 20, for example using nut and bolt clamps, locating pins or bolts, etc.
  • a series of holes 36 are present in the side bars of 34 stair run section 20 at different positions, wherein a bolt is inserted through the support section 32 and into at least one hole 36, thereby securing the landing 18 in the desired position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Ladders (AREA)
  • Movable Scaffolding (AREA)

Abstract

L'invention concerne une unité d'escalier portable, modulaire, destinée à être utilisée sur un site de construction pendant la construction d'un bâtiment à plusieurs étages, l'unité d'escalier comprenant : une section de gravissement de marches avec une pluralité de girons séparés selon une progression en hauteur, la section de gravissement de marches ayant une extrémité supérieure et une extrémité inférieure; un palier supérieur relié à la section de gravissement de marches à l'extrémité supérieure de la section de gravissement de marches ou à une certaine distance de cette extrémité; un palier inférieur relié à la section de gravissement de marches à l'extrémité inférieure de la section de gravissement de marches ou à une certaine distance de cette extrémité; chacun des paliers ayant des parties qui s'étendent latéralement au-delà d'une largeur de la section de gravissement de marches, les paliers étant disposés pour s'étendre vers l'intérieur dans les niveaux respectifs des étages supérieur et inférieur du bâtiment lorsque l'unité d'escalier est située de manière adjacente à une façade du bâtiment; et des moyens d'ancrage agencés pour fixer de manière amovible les paliers, en utilisation, aux niveaux d'étage supérieur et inférieur de manière à fournir un montage en double porte-à-faux de la section de gravissement de marches s'étendant entre les deux niveaux d'étage du bâtiment.
PCT/AU2007/000863 2006-06-20 2007-06-20 Escalier destiné à être utilisé sur des sites de construction WO2007147210A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2007262663A AU2007262663A1 (en) 2006-06-20 2007-06-20 Stairway for use on building sites
CA002655377A CA2655377A1 (fr) 2006-06-20 2007-06-20 Escalier destine a etre utilise sur des sites de construction
JP2009515674A JP2009541612A (ja) 2006-06-20 2007-06-20 建設現場用階段
US12/308,537 US20100293875A1 (en) 2006-06-20 2007-06-20 Stairway for Use on Building Sites
EP07719102A EP2029835A4 (fr) 2006-06-20 2007-06-20 Escalier destiné à être utilisé sur des sites de construction
BRPI0713495-9A BRPI0713495A2 (pt) 2006-06-20 2007-06-20 escada para uso na construção civil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2006903316A AU2006903316A0 (en) 2006-06-20 Stairway For Use On Building Sites
AU2006903316 2006-06-20

Publications (1)

Publication Number Publication Date
WO2007147210A1 true WO2007147210A1 (fr) 2007-12-27

Family

ID=38832999

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2007/000863 WO2007147210A1 (fr) 2006-06-20 2007-06-20 Escalier destiné à être utilisé sur des sites de construction

Country Status (12)

Country Link
US (1) US20100293875A1 (fr)
EP (1) EP2029835A4 (fr)
JP (1) JP2009541612A (fr)
KR (1) KR20090028716A (fr)
CN (1) CN101473097A (fr)
AU (1) AU2007262663A1 (fr)
BR (1) BRPI0713495A2 (fr)
CA (1) CA2655377A1 (fr)
RU (1) RU2009101481A (fr)
TW (1) TW200809061A (fr)
WO (1) WO2007147210A1 (fr)
ZA (1) ZA200810634B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3127183A1 (fr) * 2021-09-22 2023-03-24 Speedinnov Dispositif d’ajustement d’un escalier entre deux étages d’une structure

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130001841A (ko) * 2011-06-28 2013-01-07 삼성전자주식회사 이동 로봇용 단차 승월장치 및 이동 로봇 승월 시스템과 이동 로봇의 단차 승월방법
CN102363483A (zh) * 2011-06-29 2012-02-29 苏州新达电扶梯部件有限公司 一种电梯护栏斜挡板
WO2013152389A1 (fr) * 2012-04-12 2013-10-17 Natform Pty Ltd Module d'écran
US9758981B2 (en) 2014-10-14 2017-09-12 Emeh, Inc. Stair expansion joint system with freedom of movement between landings
US9869084B2 (en) * 2014-10-14 2018-01-16 Emeh, Inc. Stair expansion joint system with freedom of movement between landings
TWI589332B (zh) * 2015-03-13 2017-07-01 Adjustable lifting angle of the ladder machine
DE202016008947U1 (de) * 2015-08-11 2021-01-29 Zev BIANCHI Eine einklappbare Treppe
CN105600176A (zh) * 2015-10-20 2016-05-25 张跃 梯板运组
TWI620705B (zh) * 2017-05-02 2018-04-11 He cheng yu 升降式樓梯結構
US10968636B2 (en) * 2017-05-15 2021-04-06 Emeh, Inc. Moveable stair systems and methods
US11332923B2 (en) 2018-06-28 2022-05-17 Emeh, Inc. Rotational connections for stairs
US10745919B1 (en) * 2019-07-26 2020-08-18 Big Time Investment, Llc Method and apparatus for installing a staircase assembly into a building
CN112081320A (zh) * 2020-08-27 2020-12-15 衡东县佳时鸿丰建材有限责任公司 一种可调节式木楼梯及其使用方法
US20220235562A1 (en) * 2021-01-26 2022-07-28 Commercial Scaffolding Companies, Inc. Scaffolding stair system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684057A (en) * 1971-06-04 1972-08-15 Horace Eppinette Portable stairway
DE10307087A1 (de) * 2003-02-19 2004-09-09 Pröbst, Christian Querelement für eine Bautreppe

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299590A (en) * 1964-06-01 1967-01-24 Carter Lavoy Prefabricated, adjustable stairway, ramp or bridge
US3626438A (en) * 1969-12-15 1971-12-07 Ozark Metal Products Inc Adjustable stairs
US3593821A (en) * 1969-12-22 1971-07-20 Unit Step Farm Co Inc Adjustable stairstep unit
SE374068B (fr) * 1973-01-30 1975-02-24 Welin Ab
SE419736B (sv) * 1978-03-17 1981-08-24 Welin Ab Embarkeringsanordning vid fartyg
US4606431A (en) * 1984-03-19 1986-08-19 Ruder Sr Fred A Evacuation slides for multi-story buildings
US4642953A (en) * 1986-02-10 1987-02-17 Degood David A Moveable stair apparatus
US4768617A (en) * 1987-07-16 1988-09-06 Wenger Corporation Adjustable stairway having retractable wheel carriage
IT1222227B (it) * 1988-04-01 1990-09-05 Georgel Valentin Stanescu Scala per l'imbarco e lo sbarco di passeggeri da imbarcazioni,con mezzi attuatori per il posizionamento ed il ritiro
US5189854A (en) * 1992-09-14 1993-03-02 The United States Of America As Represented By The Secretary Of The Army Adjustable height stairway
AUPN087395A0 (en) * 1995-01-31 1995-02-23 Preston, John Clement Suspendable container
US6003270A (en) * 1998-04-16 1999-12-21 Macintyre; James R. Variable riser seating system
US6415891B1 (en) * 2000-11-08 2002-07-09 Yates Westley Hayman Scaffold stair
US6527081B1 (en) * 2001-05-30 2003-03-04 Aluminum Ladder Company, Embankment stairway
CN100357548C (zh) * 2001-12-28 2007-12-26 日本轻金属株式会社 楼梯
US7637350B2 (en) * 2003-05-23 2009-12-29 Interstate Equipment Corporation Portable barge access ladder
US6923140B1 (en) * 2004-03-03 2005-08-02 Aluminum Ladder Company Boat access stairway
US7377080B2 (en) * 2004-03-29 2008-05-27 The Boeing Company Stowable spiral staircase system for overhead space access
US20080190049A1 (en) * 2007-02-08 2008-08-14 David Muti Portable construction staircase

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684057A (en) * 1971-06-04 1972-08-15 Horace Eppinette Portable stairway
DE10307087A1 (de) * 2003-02-19 2004-09-09 Pröbst, Christian Querelement für eine Bautreppe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2029835A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3127183A1 (fr) * 2021-09-22 2023-03-24 Speedinnov Dispositif d’ajustement d’un escalier entre deux étages d’une structure
EP4155157A1 (fr) * 2021-09-22 2023-03-29 SpeedInnov Dispositif d'ajustement d'un escalier entre deux étages d'une structure

Also Published As

Publication number Publication date
EP2029835A1 (fr) 2009-03-04
ZA200810634B (en) 2009-08-26
BRPI0713495A2 (pt) 2012-01-24
AU2007262663A1 (en) 2007-12-27
JP2009541612A (ja) 2009-11-26
CN101473097A (zh) 2009-07-01
RU2009101481A (ru) 2010-07-27
CA2655377A1 (fr) 2007-12-27
KR20090028716A (ko) 2009-03-19
EP2029835A4 (fr) 2010-08-18
US20100293875A1 (en) 2010-11-25
TW200809061A (en) 2008-02-16

Similar Documents

Publication Publication Date Title
US20100293875A1 (en) Stairway for Use on Building Sites
US7971408B2 (en) Stairtower and method for erecting the same
CA2567141A1 (fr) Plate-forme d'acces multiniveau modulaire et son procede d'erection
US6527081B1 (en) Embankment stairway
US3927518A (en) Site assembled multi-story stair
KR20100055605A (ko) 개량형 조립식 계단
EP1206611B1 (fr) Echafaudage
JP3981604B2 (ja) 仮設階段用踊り場
JP4011722B2 (ja) 吊り階段
RU2022117C1 (ru) Лестница-стремянка для строительно-монтажных работ
AU2017100527A4 (en) A portable adjustable staircase
JP2004044298A (ja) 組立式作業足場およびその組立方法
EP3957807B1 (fr) Une structure de support d'échafaudage et une méthode d'assemblage d'échafaudages
CA2980829A1 (fr) Systeme d'echafaudage pour toiture
FI130533B (en) Scaffolding system resting on the ground
US20220412022A1 (en) Monorail system and related scaffold structures, systems and methods of use
AU2006202497B2 (en) A Scaffolding Assembly
Champion Access Scaffolding
JPH0620779U (ja) スライド式仮設階段
JP3477256B2 (ja) 渡り足場構造
JPH09268756A (ja) 踊場付き仮設階段、及び踊場付き仮設階段の立坑内での多段構築方法
CN118056054A (zh) 脚手架塔和脚手架以及塔和脚手架的用途
JP2021130952A (ja) 防護構台およびその構築方法
CA2295679C (fr) Systeme d'echafaudage unilateral
JP2004060246A (ja) 法面用階段

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200780022936.2

Country of ref document: CN

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

Ref document number: 07719102

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2007262663

Country of ref document: AU

Ref document number: 2007719102

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2655377

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 2699/MUMNP/2008

Country of ref document: IN

Ref document number: 1020087030880

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 2009515674

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2007262663

Country of ref document: AU

Date of ref document: 20070620

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2009101481

Country of ref document: RU

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 12308537

Country of ref document: US

ENP Entry into the national phase

Ref document number: PI0713495

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20081222