WO2015061863A1 - Nacelle quadruple et structure pour agencement de système d'élévation sur des façades de bâtiments - Google Patents

Nacelle quadruple et structure pour agencement de système d'élévation sur des façades de bâtiments Download PDF

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Publication number
WO2015061863A1
WO2015061863A1 PCT/BR2013/000462 BR2013000462W WO2015061863A1 WO 2015061863 A1 WO2015061863 A1 WO 2015061863A1 BR 2013000462 W BR2013000462 W BR 2013000462W WO 2015061863 A1 WO2015061863 A1 WO 2015061863A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulleys
rocker
lifting
cables
support
Prior art date
Application number
PCT/BR2013/000462
Other languages
English (en)
Portuguese (pt)
Inventor
Alberto Emilio LOPES MOREIRA
Original Assignee
Lopes Moreira Alberto Emilio
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 Lopes Moreira Alberto Emilio filed Critical Lopes Moreira Alberto Emilio
Priority to BR112013029584-8A priority Critical patent/BR112013029584B1/pt
Priority to PCT/BR2013/000462 priority patent/WO2015061863A1/fr
Publication of WO2015061863A1 publication Critical patent/WO2015061863A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/605—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes scaffolding winshes
    • 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
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
    • E04G3/32—Hoisting devices; Safety devices
    • E04G3/325—Safety devices for stabilising the mobile platform, e.g. to avoid it swinging in the wind
    • 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
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G2003/286—Mobile scaffolds; Scaffolds with mobile platforms mobile vertically

Definitions

  • This descriptive report refers to a patent application for an adaptation made to a suspended platform for use in building facades, the structure of which has been designed to have four supports, one at each of its vertices, through sets of pulleys. which support and guide four lifting and supporting steel cables connected to two machines (manual or motorized), each pulling two cables simultaneously, this equipment is called “Quadruple Rocker”.
  • the equipment consists of a platform, lifting system and safety system.
  • the platform is formed by two mullions, two sides and a floor (or association of sides and floors, depending on the desired length).
  • the lifting system consists of two machines that can be manually or motorized, four steel cables responsible for the support and vertical movement of the rocker (one pair connected to each of the machines) and two support and steering ropes, located on the platform mullions.
  • the safety system consists of fall arresters and unique wire ropes (properly fixed to the façade) and acts only in case of any failure in the lifting system to ensure the integrity of the operators and equipment.
  • the four lifting and supporting steel wire ropes are properly secured to the building (top) and stretched along the building's facade.
  • the cables run through the platform through the support and cable routing risers, enter the machines (fixed to the risers) and then protrude off the platform.
  • the four cables reach the platform vertices through the peripheral pulleys of the support and steering rails. These pulleys generate the supports at the platform vertices and direct the cables to the internal pulleys, which in turn direct them two by two to two lifting machines, which pull their two cables simultaneously. After passing through the machines, the cables remain stretched on the facade.
  • the four supported vertices allow the platform to be firm, without oscillations and without limiting width (the width of existing equipment is limited and inadequate for the services and tools used, as will be shown), favoring the safety, quality and speed of the work to be done. be executed.
  • the platform is supported by twice as many cables as existing systems (which have only two lift or lift ropes), they have a smaller diameter (approximately half), enabling a lifting system (machine) considerably more compact and lighter and therefore less expensive.
  • the difference in cost is due to the size of the hoisting machine being made as a function of wire rope diameter, since wire rope has a minimum winding or twisting diameter relative to its own diameter (the smaller the cable diameter smaller its minimum winding diameter) to ensure its integrity over repeated use.
  • the machine can be more compact and lightweight, being more economical in relation to both the raw material and the machining of the parts.
  • the value of the four wire ropes of The support and vertical movement used by the quadruple rocker is equal to the value of the two cables used by the rocker arms on the market, because the diameter is half.
  • the so-called “Quadruple Rocker” equipment is innovative both in terms of its features, which are more suitable and safer for service performed at heights, and in terms of cost, efficiency and practicality due to a lighter and more compact lifting system. .
  • rockers or suspended platforms made up of a platform are used, lifting machines attached to wire ropes which, in turn, are properly fixed to the roof of the building that will have some work performed on its facade (construction, maintenance or installations).
  • lifting machines manual or motorized, the steel cables are relieved or pulled and thus perform the vertical movement of the platform on the façade.
  • a rocker well known by the construction industry is the double machine rocker.
  • This equipment shown in Figure 1 in the state of the art of this patent application, has a stable platform without oscillations, but requires a large number of machines and equipment.
  • Each set consists of two machines, each with its handle, and locks that connect them and support the floor and railing made of wood.
  • the maximum space between sets (span) is one and a half meters and a rocker up to one and a half meters has four machines (two sets) and a seven and a half meter rocker has twelve machines (six sets).
  • This equipment is no longer used due to the large number of machines and the time spent in their vertical movement and assembly and disassembly, and is ecologically incorrect due to the use of wood.
  • a rocker is made up of a platform, lifting system and safety system.
  • the platform consists of two mullions, two sides and one floor (or association of sides and floors).
  • the lifting system consists of two machines that can be manually or motorized and only two lifting and supporting steel cables, each connected to a machine. Each machine is fixed to a platform riser and the wire ropes properly attached to the roof of the building.
  • the safety system is comprised of different types of fall arrest (located on machines or platform headers) and unique wire ropes and acts only in the event of any defect in the lifting system, ensuring the integrity of workers and equipment. Because this system has only two points of support (two lifting and supporting wire ropes), the platform has an equilibrium line formed by the same. This generates oscillations and instability, as shown in Figure 2A, and a platform width limit that is inadequate for the services performed, since the larger the platform width, the greater the instability and oscillations to which it will be subjected. These characteristics are detrimental to both the quality and speed of the services to be performed, as well as the safety of workers and equipment.
  • rocker in question is the formation, made possible by the design of its lifting and support system, of four support points for the platform with two machines, meeting the needs of construction use and respecting the ergonomic and safety standards.
  • the quadruple rocker consists of a platform, the lifting system and the safety system.
  • the platform consists of two mullions, two sides and one floor (or combination of sides and floors, according to the desired platform length).
  • the lifting system consists of two machines (each attached to an upstream), which can be manually or motorized, four wire ropes (lifting and holding, one pair attached to each of the machines) and two slings. cable support and routing (each formed by four pulleys, located two at the ends and two at the center of each mullion).
  • the safety system is comprised of fall arresters (located on the machines or platform risers) and unique wire ropes and only acts in case of any failure of the lifting system, ensuring the integrity of the workers and of equipment.
  • the four lifting and supporting steel wire ropes are properly secured to the building (top) and stretched along the building's facade.
  • the cables run through the platform through the support and routing strips on the risers, enter the machines (attached to the risers) and then protrude out of the platform.
  • the four cables reach the platform vertices through the peripheral pulleys of the support and steering rails. These pulleys generate the supports at the platform vertices and route the cables to the internal pulleys, which in turn direct each pair of cable to the same lifting machine, ensuring that they are pulled simultaneously (two by two).
  • Each machine consists of gears and pulleys with traction grooves for two wire ropes and a drive system. This system allows the baiancim to have four support points located at the vertices of the platform, each lifting and supporting cable being responsible for a support. After passing through the machines, the cables remain stretched on the facade.
  • Baiancim Quadruple Even with all the improvements developed, is lower than the existing equipment. This is due to the four support points (four lifting and supporting steel cables), which make it possible to employ, by the weight distribution obtained, thinner steel cables (diameter), because the cable effort falls in half in relation to the commercial rocker arms (which only have two lift and support cables). These thinner lift and lift cables reduce the cost of the lift system and equipment. Since the cost of the four cables used in the Quadruple Rocker is equivalent to the cost of the two cables used in the existing rocker machines, the machines are significantly more compact and lightweight and therefore more economical in terms of both raw material and machining. This is because lifting machine parts are sized based on the diameter of the wire rope, as they have a minimum winding or twisting diameter that is relative to their own diameter (the smaller the cable diameter, the smaller its minimum cable diameter. winding) to ensure integrity throughout repeated use.
  • the rocker in question also enables, by forming the four support points, that the platform does not have a width limit, and therefore can have an appropriate width, contributing to a better quality work. and speed (existing rockers have a width limit that is inadequate to the services performed, because the larger the platform width the greater the oscillations and instability they present).
  • Quadruple Rocker is a equipment with a more compact lifting system and lower cost of manufacture and that presents significant improvements in the quality and speed of the services performed and also the safety involved in its use, innovating the concept of rockers hitherto known.
  • FIG 1 perspective view of the Double Rocker or Double Machine scaffolding, showing a platform with four support points, but requiring four machines (ratchet type) for the four wire ropes.
  • the maximum spacing between the sets is one and a half meters, and it is necessary for a platform of seven and a half six sets (twelve machines with twelve cables), which makes this equipment heavy, slow and bulky.
  • the platform's work floor and railing are made of wood, making their assembly more laborious and generating waste (rubble);
  • FIG 2 - perspective view of the system of a commercially available hand-operated rocker (hand machine or crank), consisting of a platform (two mullions, two sides and one floor), two hand-operated machines, two lifting cables (one on each machine) and two security cables (one on each machine).
  • Lifting and lifting ropes are shown in black solid line and safety ropes are shown in dashed line, connected to different types of fall arresters (not shown in the figure).
  • the turn (instability) to which the platform is subjected is represented by the curved arrows.
  • the internal dashed nail, along the curved arrows that represent the gyrus, is the transposition of the equilibrium limit offered by the two support points (from one cable to the other), which determines the instability in the existing platforms.
  • Figure 2A schematically shows the platform and how the spin problem occurs (curved arrows).
  • Figure 3 Perspective view of a building, showing two Quadruple Rockers, each with its platform supported by four lifting and supporting steel cables, anchored from suitable points on the building's ceiling (in this figure by means of beams) and stretched along the facade of the building;
  • FIG 4 Perspective view of the Quadruple Rocker, whose structure has, as a new project, the adjacent columns of its two mullions, joined by the support ruler and cable routing. Further down the mullion is the machine support and mounting frame. The steel cables, once attached to the roof of the building, are passed two by two by the cable support and steering strips, which generate the supports at the platform vertices and direct each pair of cables to a single machine fixed upstream.
  • Figure 4A shows schematically the vertices of the Quadruple Rocker structure receiving the four support points (four cables) that converge to two tensile points (two machines), one in each upstream, eliminating the problem of existing platform rotation in existing rockers. in the market;
  • FIG. 5 - view of the previous figure showing, in enlarged detail A, one of the cable support and direction strips that joins two adjacent columns of the upstream, formed by two pairs of peripheral and internal pulleys, which are responsible for generating the supports. at the vertices of the platform and by routing the cables to the machine, fixed to the mullion support frame, below the ruler.
  • Each machine which can be manually or motor-driven, consists of gears and pulleys that simultaneously move both wire ropes.
  • the wire ropes run through the pulleys and are routed centrally and inferiorly, each pair, to their respective machine, and then projecting inferiorly below the rocker floor and extended into the building facade;
  • Figure 6 view according to the previous figure, showing, in enlarged detail B, the cable support and steering strip with one of its parts removed, exposing the two pairs of pulleys.
  • the two steel cables are passed through the peripheral pulleys, converge to the internal pulleys and follow directed centrally and parallel to the pulleys of the machine responsible for their simultaneous movement;
  • Figure 7 perspective view, showing a detached riser of the new structure, whose columns are joined by the support and cable routing ruler, as well as the supporting frame of the machine, also detached.
  • the arrangement of the pairs of pulleys and the lifting machine (double-guide toothed pulleys), in this manual figure, are shown to show the interconnection made by the steel cables, forming the lifting system with four support points to from the vertices of the platform structure.
  • the "QUADRUPLE ROCKER AND STRUCTURE FOR ARRANGEMENT OF PREDIABLE FAILURE LIFTING SYSTEM” the subject matter of this application, It is constituted from a rocker (1) composed of a floor (2) surrounded by the sides (3) and the mullions (4) that have their adjacent columns (5) joined by a support and steering cable ruler (6 ), each ruler (6) housing two pairs of pulleys (7), said pairs (7) arranged in the form of two peripheral pulleys (7a) and two internal pulleys (7b), facing each other.
  • each receiver of a lifting machine composed of double guide pulleys (10) that move the coupled cables to the gears that form the drive system (11), which in this specific example is manual.
  • Quadruple Rocker (1) which, thus constituted, will have its four steel cables (20) fixed in points (P) suitable from the ceiling (T) of the building (E) whose facade will be worked, as shown in the figure.
  • the rocker (1) remains with four support points from each of the vertices, with the passage of the steel cables (20) through the peripheral pulleys (7a) of the support ruler and the cable direction (6) and which, after converging to the central pulleys (7b) are directed to both machines (9) below.
  • the wire ropes (20) are less stringent and may have a smaller thickness (smaller diameter), the four ropes used on the Quadruple Rocker being of equivalent value to the two ropes used on existing rocker arms.
  • Thicker cables allow the pulleys (10) and consequently the drive system gears (11) to be smaller (each cable diameter has a minimum diameter that can be wound), the lifting machine (9) being consequently Rocker (1) has lower manufacturing costs than existing equipment.
  • the width of the floor (2) may be larger, and there is no width limitation, since stabilization and support are guaranteed, since there is no more rotation in the platform.
  • the wire ropes (20) form, in addition to the four support points, a single tensile point at each (4) so that, under the action of the lifting machines (9) they can be pulled or released by raising or lowering the rocker (l).
  • the safety system consisting of fall arrest (21) and safety cables (22) ensures the integrity of the rocker (1), workers and equipment.
  • the number of systems of Security and location may vary depending on platform type and application.
  • the turning problem is eradicated, allowing the worker a better balance, stability and safety and a platform of adequate dimensions, representing a significant change in the execution of the service, regarding time and quality as well as safety. reduce manufacturing costs.
  • Lifting machines can have their motorized lifting system, the gears and pulleys with cable pull grooves are driven by electric motor, or manual, crank driven system, as illustrated equipment.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Jib Cranes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

L'invention concerne une nacelle quadruple et une structure pour agencement de système d'élévation sur des façades de bâtiments, les montants (4) de la nacelle (1) présentant des colonnes adjacentes (5) jointes par une pièce de guidage des câbles (6), dont chacune loge des paires de réas (7) de passage de câbles d'acier (20), lesquels sont guidés de sorte que, en dessous du montant (4), ils entourent les poulies avec des guides doubles (10) reliés aux engrenages (11) et à leurs systèmes d'actionnement. Étant donné qu'il est installé sur les deux montants (4), cet agencement forme quatre points d'appui sur la nacelle (1) avec seulement deux mécanismes d'élévation (9) et quatre câbles (20). Cette structure permet d'utiliser des câbles (20) d'épaisseur réduite (diamètre), de façon que les poulies à guides doubles (10) et, donc, les engrenages (11) présentent un diamètre réduit, d'où une diminution des coûts de fabrication. Il est en outre possible de construire des structures et leurs planchers (2) sans limite de largeur. Par ailleurs, les réas (7) de guidage des câbles d'acier (20) et les poulies avec guides doubles (10) permettent d'obtenir un point unique de traction sur chaque montant (4) de la nacelle (1). Ainsi, sous l'action des mécanismes d'élévation (9) respectifs, ils peuvent être tirés ou libérés en vue d'un mouvement vertical de la nacelle quadruple (1) sans oscillations et plus rapidement.
PCT/BR2013/000462 2013-11-01 2013-11-01 Nacelle quadruple et structure pour agencement de système d'élévation sur des façades de bâtiments WO2015061863A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR112013029584-8A BR112013029584B1 (pt) 2013-11-01 2013-11-01 Balancim quádruplo e estrutura para arranjo de sistema de elevação em fachadas prediais.
PCT/BR2013/000462 WO2015061863A1 (fr) 2013-11-01 2013-11-01 Nacelle quadruple et structure pour agencement de système d'élévation sur des façades de bâtiments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2013/000462 WO2015061863A1 (fr) 2013-11-01 2013-11-01 Nacelle quadruple et structure pour agencement de système d'élévation sur des façades de bâtiments

Publications (1)

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WO2015061863A1 true WO2015061863A1 (fr) 2015-05-07

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PCT/BR2013/000462 WO2015061863A1 (fr) 2013-11-01 2013-11-01 Nacelle quadruple et structure pour agencement de système d'élévation sur des façades de bâtiments

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Country Link
BR (1) BR112013029584B1 (fr)
WO (1) WO2015061863A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109083393A (zh) * 2018-09-11 2018-12-25 中建三局第建设工程有限责任公司 齿条工字型导轨及升降脚手架

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1085607A (en) * 1911-10-12 1914-02-03 John O Neil Hanging scaffold.
US1187060A (en) * 1915-12-16 1916-06-13 Chicago Scaffold Company Scaffold.
GB1375622A (fr) * 1971-03-26 1974-11-27
EP0486126A2 (fr) * 1990-11-13 1992-05-20 Figgie International Inc. Echafaudage pour bâtiment
US20060080904A1 (en) * 2004-10-06 2006-04-20 Shaha Kevin B Ceiling-mounted elevating storage platform
US20100018802A1 (en) * 2008-07-24 2010-01-28 Roberto Ubaldo Arduino Sani Multi-point suspended scaffold

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1085607A (en) * 1911-10-12 1914-02-03 John O Neil Hanging scaffold.
US1187060A (en) * 1915-12-16 1916-06-13 Chicago Scaffold Company Scaffold.
GB1375622A (fr) * 1971-03-26 1974-11-27
EP0486126A2 (fr) * 1990-11-13 1992-05-20 Figgie International Inc. Echafaudage pour bâtiment
US20060080904A1 (en) * 2004-10-06 2006-04-20 Shaha Kevin B Ceiling-mounted elevating storage platform
US20100018802A1 (en) * 2008-07-24 2010-01-28 Roberto Ubaldo Arduino Sani Multi-point suspended scaffold

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109083393A (zh) * 2018-09-11 2018-12-25 中建三局第建设工程有限责任公司 齿条工字型导轨及升降脚手架

Also Published As

Publication number Publication date
BR112013029584A2 (pt) 2017-06-20
BR112013029584B1 (pt) 2021-08-03

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