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WO2009033287A1 - Système d'élévation de puissance - Google Patents

Système d'élévation de puissance Download PDF

Info

Publication number
WO2009033287A1
WO2009033287A1 PCT/CA2008/001617 CA2008001617W WO2009033287A1 WO 2009033287 A1 WO2009033287 A1 WO 2009033287A1 CA 2008001617 W CA2008001617 W CA 2008001617W WO 2009033287 A1 WO2009033287 A1 WO 2009033287A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
upright member
upright
power lift
vertical
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.)
Ceased
Application number
PCT/CA2008/001617
Other languages
English (en)
Inventor
Joseph Teberah
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.)
Individual
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
Priority to US12/998,664 priority Critical patent/US20120018253A1/en
Application filed by Individual filed Critical Individual
Publication of WO2009033287A1 publication Critical patent/WO2009033287A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/18—Scaffolds primarily resting on the ground adjustable in height
    • E04G1/20—Scaffolds comprising upright members and provision for supporting cross-members or platforms at different positions therealong
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure
    • B66B9/187—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure with a liftway specially adapted for temporary connection to a building or other structure
    • 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/38—Scaffolds partly supported by the building
    • 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

Definitions

  • the present invention relates to power lift systems and in particular relates to a power lift system for lifting heavy materials for example masonry or stone products.
  • the system can be erected and dismantled in a straightforward and time efficient manner.
  • Power lift systems that operate on the basis of a stabilized vertical upright with a moveable platform that slides on the vertical upright are known. Examples of such systems are shown in United States Patent 6,883,643, United States Patent 5,884,725 and Unites States Patent 4,382,488.
  • United States Patent 4,382,488 discloses a pump jack pole system having a hydraulic pump jack used to move a slide member up and down a pole upright.
  • Vertical lift systems that are effectively powered by the workmen are desirable in that the cost of a manual pump jack or a manual crank for lifting of a platform is inexpensive, however there is a problem with respect to providing a safe and cost-effective system that is easy and convenient to use.
  • the purpose of such a lift system includes lifting often heavy material to a higher level. As the weight of this product substantially increases the convenience of a manually driven system is severely compromised.
  • the present invention is directed to a lifting system that is suitable for lifting of a substantial weight for example in excess of 2,000 lbs. but is also useful in lifting lighter loads and providing an adjustable height work platform.
  • the system is based on an upright member having a rack portion of one side that cooperates with a gear drive carried and the carrier that slides up and down the upright member.
  • An electric motor is used to drive the gear drive and determine the position of the carrier on the upright.
  • the vertical upright can be used in pairs for larger platforms and work surfaces however it is also possible to use a single upright system.
  • a power lift system comprises at least one vertical lift combination with each vertical lift combination comprising an upright member and an associated carrier.
  • the upright member has a rack portion on an exterior surface thereof with the rack portion extending in a length of the upright member.
  • the carrier is mounted on and moveable in the length of the upright member with the carrier sleeving the upright member.
  • the carrier includes an open slot on a surface thereof opposite the rack portion with the open slot extending in the length of the carrier.
  • the vertical lift combination includes a self braking motor drive and gear train mounted on the carrier,
  • the carrier includes a drive port on a surface of the carrier opposite the open slot with a gear of the gear train extending through the drive port and engaging the rack portion.
  • the carrier above and below the motor drive includes means for releasably receiving load arms with the load arms supporting a work surface outwardly of the carrier.
  • the power lift system includes at least two vertical lift combinations spaced apart from each other and maintained in a parallel manner.
  • the system has two power lift combinations and the carriers jointly secure a work platform between the upright members.
  • each upright member includes a series of securement ports aligned with the open slot of the associated carrier.
  • the system includes a tie off member to releasably engagable with any of the securement ports to form a mechanical connection with the upright member.
  • the tie off member is elongate and extends through the open slot of the carrier as the carrier moves past the tie off member.
  • the tie off member is a rigid member and includes means for fixedly securing the rigid member to a building structure to maintain the upright in a vertical orientation.
  • the system includes guide wire securing members engagable with the uprights adjacent an upper edge of the uprights.
  • the system includes two uprights with two carriers and the drive motors of the carrier are commonly controlled to operate in a synchronized manner.
  • the means for releasably receiving load arms includes two pairs of carrier bars on opposite sides of the carrier.
  • Each pair of carrier bars is rigidly secured to the carrier and generally perpendicular to a length of the carrier.
  • the pairs of carrier bars define parallel securing slots on opposite sides of the carrier sized to slidably receive a securing fork of the load arms.
  • the system includes means for releasably maintaining the securing fork between the pairs of carrier bars.
  • the load arms extends forwardly and rearwardly of the carrier.
  • Figure 1 is a perspective view of the system using a single upright member
  • Figure 2 is a perspective view of the system using two vertical members;
  • Figure 3 is a partial perspective view of a single pole lifting system showing additional details of the slideable carrier;
  • Figure 4a is a partial exploded perspective view of the slideable carrier, the drive thereof and the cooperation with the vertical upright member;
  • Figure 4b is a sectional view through the vertical pole member
  • Figure 5 is a sectional view showing the slideable carrier, the motor drive thereof and the gears associated with the motor and the rack provided on the upright member;
  • Figure 6 is a partial perspective view showing the securement of a work platform to one side of the carrier
  • Figure 7 is a partial perspective view showing an extension member used for lifting of a further upright member to a first upright member
  • Figure 8 is a side view showing the extension member secured on one upright member and the process for lifting and securing a second upright member;
  • Figures 9 and 10 are perspective view of an alternate embodiment of the slidable carrier.
  • the power lift system 2 shown in Figure 1 is in an erected position adjacent the house 1.
  • the power lift system 2 includes one or more vertical uprights 4, a powered lift platform 6, side stabilizing cables 8 and vertical standoffs 10.
  • the vertical upright 4 can be stacked one on top of the other by means of a connector extension 12.
  • a connector extension 12 In the example shown in Figure 1, there is a base vertical upright 10a connected to a second vertical upright 10b.
  • the intermediate connector 12 extends the vertical uprights and also includes spigot portions that are received within each of the vertical uprights to add stability.
  • a connecting spigot is provided at an upper end of the vertical upright. This spigot receives a base of an upright whereby a separate intermediate connector is not required.
  • the connecting spigot is welded to partially extend from the vertical upright.
  • a one tier work platform 18a is shown that is attached to and moves with the slidable carrier 20.
  • This platform 18 can be used as a working surface for the workmen and/or to lift material to a desired height.
  • the power lift system 2 is shown with two vertical uprights 4 generally positioned at opposite sides of the work platform 18b.
  • the work platform includes hinged or removable sections 19 to allow the work platform 18b to slide onto the carrier.
  • two rigid vertical standoffs 10 are shown in combination with a rigid cross brace member 14 provided between the uprights.
  • FIG. 3 shows additional details of a single vertical upright in this case supporting a two tier work platform 18c. Also visible in this figure is the intermediate connector 12 joining a base upright 4a and a first raised upright 4b.
  • the two-tier work platform 18c includes the first work surface 21 (suitable as a walk surface for workmen) and a raised or table work surface 23.
  • the vertical upright 4 includes on a rear surface thereof the rack 30 for cooperation and engagement with gear 28 associated with the drive gear 26 powered by the motor 27.
  • the gear 28 extends through the port 29 provided in the slidable carrier 20.
  • the front face of the slidable carrier 20 includes an open slot portion 22 that allows the carrier 20 to slide past various structural members that are used to connect the pole and stabilize the pole such as the vertical standoffs 10. In this way the slidable carrier 20 can pass upwardly along the connected uprights and move past any vertical standoffs 10.
  • the hinged sections 19 of the work platform 18 can be opened to allow the platform to move past the standoffs 10.
  • the slidable carrier 20 includes upper carrier bars 40 on opposite sides of the slide carrier and these will receive and engage structural members associated with the work platform or lifting arms.
  • the carrier bars 40 are provided in pairs with a first pair of carrier bars on one side of the carrier and a second pair of carrier bars are provided on an opposite side of the carrier.
  • the retaining plates 42 engage of these structural members and retain the structural members at the sides of the slidable carrier (see Figure 6).
  • a lower set of carrier bars 50 are provided near the base of the slidable carrier 20 and include retaining plates 52.
  • Bearings 62 are provided on the rear face of the slidable carrier 20 and a similar set of bearings 64 are provided on the front face 51 of the slidable carrier 20. These bearings are located top and bottom of the slidable carrier and oppose binding of the slide carrier with the upright member.
  • the slidable carrier 20 is extended and side bearings are provided above the upper carrier bars 40 on each side of the carrier and below the lower carrier bars 50 on each side of the carrier. These additional bearings counter any side loads that may occur for example due to non equally distributed loads being lifted. Also this alternate embodiment is more robust and durable (see Figures 9 and 10).
  • the motor 27 is an electric reversible motor that includes its own brake system. There are various manufacturers of these motors but the motor locks when not operating and therefore the carrier is maintained in a fixed location unless the motor is operating.
  • One example of a suitable electric motor is sold by Nord Gear as UNICASE TM, Helical worm gear box 3hp SK3210Q- 100LH. This provides a positive brake mechanism for the slidable carrier 20.
  • the slidable carrier 20 includes a series of reinforcing wraps 60 that are welded to the slidable carrier. These reinforcing wraps oppose any tendency of the carrier to open or spread and thereby increase the size of the open slot 22. These wraps provide positive reinforcement that avoids any force tending to open the slidable carrier. The reinforcing wraps are typically welded to the slidable carrier 20.
  • the rack 30 is a separate member as shown in Figure 4b that has been secured within the vertical upright 4. It is desirable to cut a slot in the vertical member and weld the separate rack member 30 into the slot. This two part assembly simplifies manufacture of the rack and the upright.
  • Various ports are provided at the side of the upright members as well as on the front face for securement of structural members or accessories.
  • FIG. 6 shows securement of the walker arm 70 to the slidable carrier 20.
  • the walker arm 70 includes opposed members 72 and 74 that are spaced to closely engage the slidable carrier 20 and to be positioned between the upper or lower carrier bars and secured therebetween.
  • a series of tabs 76 include threaded ports for effectively securing of the work platform 78 to the walker arms.
  • the large open 'U' shaped opening 80 provided between the two members 72 and 74, allow the walker arm to extend to the front and to the rear of the slidable carrier 20.
  • One portion of the arms will receive the rear part of the work surface 78 and the forwardly extending portion of the walker arms, defined by members 72 and 74, will receive the work surface 80.
  • work surface 80 includes a slidable portion that allows it to be positioned either side of the slidable carrier 20 and allows movement past standoff members 10.
  • Figures 7 and 8 show one particular embodiment where the extension member 100 includes securing arms 102, 104, having securing hooks 106 and 108. These securing hooks 106 and 108 can be placed within the ports 110, provided in the side of the vertical uprights 4. Two sets of hooks are provided to opposite sides of member 100 to allow it to be positioned to either side of the vertical upright member.
  • a large pulley 112 is provided at one end of the extension member and a rope and hook arrangement passes therethrough and allows a second vertical member to be drawn up and placed on top of a lower vertical member; this aspect is generally shown in Figure 8. This provides a simple mechanism for initially erecting the desired vertical members one on top of the other and using appropriate standoff members and stabilizing cables for securing of the structure.
  • This extension member 100 is also helpful in taking the system down. An intermediate connector has not been shown but would be present to provide the connection between the upright members or the upright would include an integral spigot.
  • Figures 9 and 10 are perspective views of an alternate slidable carrier 120 having a modified arrangement for mounting of the electric motor drive 124 as well as including side bearings 132, 134, 136 and 138 provided in pairs to opposite sides of the slidable carrier.
  • the alternate slidable carrier is in contrast to the slidable carrier 20 of the earlier figures that included slide plates provided on the sides of the carrier.
  • a slidable carrier with slide plates can be vvn.-ijzcs»iv_ ⁇ 10 - iii -
  • the additional bearings 132, 134, 136 and 138 are preferred particular for applications where side loads are higher.
  • the electric motor drive 124 has a two-way electrical motor 150 in combination with a transmission drive 152 that drives the drive gear 154 that is in mesh with the rack 30 of the vertical upright.
  • the electric motor 150 and transmission 152 are mounted on a mounting plate 160 that extends to one side of the slidable carrier 120 and is secured preferably by welding to the slidable carrier on two sides thereof. This provides a strong "L" shaped mounting plate for the electric motor 150 and transmission 152 that overlaps with the slidable carrier. As can be appreciated due to the extra bearings provided on the alternate slidable carrier the length of the carrier has increased.
  • the electric motor and transmission are provided to one side of the carrier and generally are in close proximity and extend in the length of the slidable carrier. This provides a compact and space efficient design that is rugged and less subject to damage.
  • the power lift system of the present invention provides a simple arrangement for raising of various loads to different elevations and can quickly be erected and dismantled as required.
  • the components are relatively rugged and cost effective to manufacture.
  • the slidable carrier 20 is adapted to allow for a single level work surface or a multi- level work surface as may required for different jobsite applications. For example, some projects may have a users walk platform using the lower carrier bars 50 and a raised or table type platform using the upper bars 50 and provided to the rear of the carrier.
  • the system also allows easy conversion from a one post system to a two post system or more. This provides versatility as may be required from job to job for lifting of different weights and/or applications.
  • the system is particularly designed for lifting of weights in excess of 2000 lbs. that may be required for certain jobs, particularly masonry or replacement window applications.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

L'invention concerne un système d'élévation de puissance destiné à être utilisé en association avec des systèmes de type échafaudage. Le système est conçu pour être érigé à proximité immédiate du mur de bâtiments ou de tout autre structure de support et il est utilisé pour élever des charges substantielles jusqu'à une hauteur souhaitée. Le système d'élévation possède une application particulière en vue d'une utilisation en association avec la construction et/ou la réparation d'une structure où une grue ou un élévateur ne convient pas ou n'est pas disponible. Le système d'élévation de puissance comprend au moins une combinaison d'élévation verticale qui comprend un élément montant et un porteur associé, l'élément montant possède une partie de bâti sur sa surface extérieure qui s'étend sur la longueur de l'élément montant, le porteur est monté sur toute la longueur de l'élément montant et y est mobile, le porteur enveloppant l'élément montant, une fente ouverte est ménagée dans le porteur à l'opposé de la partie de bâti et cette fente étend la longueur du porteur, la combinaison d'élévation verticale inclut un entraînement par moteur à rupture automatique et un train d'engrenages montés sur le porteur et incluant un orifice d'entraînement dans le porteur sur une surface du porteur opposée à la fente ouverte, un engrenage du train d'engrenages s'étendant au travers de l'orifice et venant se mettre en prise avec la partie de bâti, le porteur au-dessus et en dessous de l'entraînement par moteur inclut le moyen pour recevoir de manière amovible des bras de charge, et ces bras de charge sont conçus pour supporter une surface de travail vers l'extérieur du porteur. Le système d'élévation de puissance inclut de préférence au moins deux combinaisons d'élévation verticale espacées l'une de l'autre et maintenues parallèle. Un plateau de travail peut être supporté entre les deux combinaisons d'élévation verticale.
PCT/CA2008/001617 2007-09-14 2008-09-15 Système d'élévation de puissance Ceased WO2009033287A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/998,664 US20120018253A1 (en) 2007-09-14 2008-08-15 Power lift system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2602739A CA2602739C (fr) 2007-09-14 2007-09-14 Systeme de levage electromecanique
CA2,602,739 2007-09-14

Publications (1)

Publication Number Publication Date
WO2009033287A1 true WO2009033287A1 (fr) 2009-03-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2008/001617 Ceased WO2009033287A1 (fr) 2007-09-14 2008-09-15 Système d'élévation de puissance

Country Status (3)

Country Link
US (1) US20120018253A1 (fr)
CA (1) CA2602739C (fr)
WO (1) WO2009033287A1 (fr)

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GB2478612A (en) * 2010-07-28 2011-09-14 Bersche Rolt Ltd An access system
NO20160389A1 (en) * 2016-03-07 2017-09-08 Helijo As A foldable platform lift
CN107923186A (zh) * 2015-07-27 2018-04-17 阿尔贝特私人有限公司 施工平台设备以及安装施工平台设备的方法
CN108374552A (zh) * 2018-03-12 2018-08-07 东莞市松研智达工业设计有限公司 一种基于电磁伸缩杆控制的防滚动式高楼吊篮
EP3816083A1 (fr) * 2019-10-30 2021-05-05 Motto Elevation S.L. Procédure d'ensemble descendant de systèmes d'élévation et mât pré-tendu
CN112936095A (zh) * 2020-02-05 2021-06-11 苏丽 一种基于机械加工工件提升避免卡住的提升机构

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IT1400029B1 (it) * 2009-10-09 2013-05-17 Rossi De Sistema modulare per il sollevamento di carichi, in particolare per edilizia, e corrispondente metodo.
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USD724288S1 (en) 2013-05-28 2015-03-10 Matthew Gross Building edge mount lifting apparatus
US9347603B2 (en) 2013-06-20 2016-05-24 Taggart Global, Llc Counterweight hoisting apparatus
RU2579376C1 (ru) * 2015-04-03 2016-04-10 Общество с ограниченной ответственностью "Единая фасадная компания" Подъемно-транспортная система для обслуживания фасадов зданий
US10173875B2 (en) * 2015-10-13 2019-01-08 Mass Electric Construction Co. Platform truck for catenary wire installation and method of use
CN109179271B (zh) * 2018-09-13 2024-02-02 平湖普英特高层设备有限公司 一种大角度斜爬式擦窗机
CN111005614B (zh) * 2019-12-15 2021-02-02 陕西通信规划设计研究院有限公司 一种垂直起降式通信维修设备
CN112376881A (zh) * 2020-11-17 2021-02-19 浙江铠甲建筑科技有限公司 一种爬升式脚手架支座增长组件
CN113356549A (zh) * 2021-05-14 2021-09-07 云南庞通建筑工程有限公司 一种节能型建筑施工升降机
CN113250434B (zh) * 2021-06-24 2022-09-09 安徽长青建筑制品有限公司 一种多功能复合型脚手架体系
CN113585692A (zh) * 2021-07-20 2021-11-02 山东昆嵛路桥工程有限公司 一种道路施工用脚手架
CN113697628B (zh) * 2021-08-31 2023-04-25 铜陵有色金属集团股份有限公司 副井提升系统重故障应急机械开车方法
CN114436100B (zh) * 2021-12-30 2024-05-14 上海建工集团股份有限公司 一种超高层自升降附着悬挑式层间物料转运方法

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Cited By (10)

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Publication number Priority date Publication date Assignee Title
GB2478612A (en) * 2010-07-28 2011-09-14 Bersche Rolt Ltd An access system
GB2478612B (en) * 2010-07-28 2012-02-22 Bersche Rolt Ltd Access systems
CN107923186A (zh) * 2015-07-27 2018-04-17 阿尔贝特私人有限公司 施工平台设备以及安装施工平台设备的方法
NO20160389A1 (en) * 2016-03-07 2017-09-08 Helijo As A foldable platform lift
WO2017155413A1 (fr) 2016-03-07 2017-09-14 Helijo As Plate-forme élévatrice pliable
NO341549B1 (en) * 2016-03-07 2017-12-04 Helijo As A foldable platform lift
CN108374552A (zh) * 2018-03-12 2018-08-07 东莞市松研智达工业设计有限公司 一种基于电磁伸缩杆控制的防滚动式高楼吊篮
CN108374552B (zh) * 2018-03-12 2019-09-20 无锡北大建筑工程有限公司 一种基于电磁伸缩杆控制的防滚动式高楼吊篮
EP3816083A1 (fr) * 2019-10-30 2021-05-05 Motto Elevation S.L. Procédure d'ensemble descendant de systèmes d'élévation et mât pré-tendu
CN112936095A (zh) * 2020-02-05 2021-06-11 苏丽 一种基于机械加工工件提升避免卡住的提升机构

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