EP1033343A2 - Ausziehbare Arbeitsbühne - Google Patents

Ausziehbare Arbeitsbühne Download PDF

Info

Publication number
EP1033343A2
EP1033343A2 EP99125641A EP99125641A EP1033343A2 EP 1033343 A2 EP1033343 A2 EP 1033343A2 EP 99125641 A EP99125641 A EP 99125641A EP 99125641 A EP99125641 A EP 99125641A EP 1033343 A2 EP1033343 A2 EP 1033343A2
Authority
EP
European Patent Office
Prior art keywords
platform
central section
section
bottom wall
sideboard
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
EP99125641A
Other languages
English (en)
French (fr)
Other versions
EP1033343B1 (de
EP1033343A3 (de
Inventor
Paolo Merlo
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.)
Treemme Tecnology Srl
Original Assignee
Treemme Tecnology Srl
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 Treemme Tecnology Srl filed Critical Treemme Tecnology Srl
Publication of EP1033343A2 publication Critical patent/EP1033343A2/de
Publication of EP1033343A3 publication Critical patent/EP1033343A3/de
Application granted granted Critical
Publication of EP1033343B1 publication Critical patent/EP1033343B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044—Working platforms suspended from booms
    • B66F11/046—Working platforms suspended from booms of the telescoping type

Definitions

  • This invention relates to an overhead platform destined to be connected to the end of a lifting boom of a lifting vehicle, for example, of the type described in document EP-A-0375705 by this Applicant.
  • Extensible overhead platforms have been proposed, such platforms being capable of assuming a configuration for transportation, which width is contained within the limits of the law, and a configuration for working, which width is greater.
  • the scope of this invention is to provide an extensible overhead platform with a simple structure which can be opened and closed by operating from inside the platform.
  • a lifting vehicle 10 is indicated of the type generally known, equipped with a lifting boom 12 jointed onto the chassis 14 of the vehicle on a crosswise axis 16.
  • a hydraulic jack 18 turns the boom 12 on the joint axis 16.
  • An attachment device 20 of the type known is arranged on the free end of the boom 12, which is generally telescopic.
  • the attachment device is used for attaching tools of various types, such as, for example, a fork, a bucket, a hoisting hook, etc.
  • an overhead platform 22 is connected to the end of boom 12 of the vehicle 10.
  • the overhead platform 22 comprises a central section 24 e and two mobile sections 26.
  • the central section 24 is equipped with an attachment 28 suited to be coupled to the attachment device 20 on the boom 12.
  • the construction details of the attachment 28 are not illustrated in detail herein, since the details lie outside the scope of this invention.
  • the central section 24 has a rectangular shaped bottom wall 30.
  • a pair of sideboards 32 are fastened along the longer sides of the tailboard 30.
  • Each side section 26 comprises a tailboard 34, a pair of fixed sideboards 36 and a foldable sideboard 38.
  • the tailboards 34 of the side sections 26 are jointed onto the tailboard 30 of the central section 24, along the respective axes 40 located on the smaller sides of the tailboard 30.
  • Each of the side sections 26 can turn on an angle of approximately 90° with respect to the central section 24 from a lifted position, corresponding to a closed configuration of the platform 22, to a lowered position, corresponding to an open configuration of the platform, and vice versa.
  • the fixed sideboards 36 of the side sections 26 are solidly fastened to the respective tailboards 34 and, consequently, turn along with the tailboards. As illustrated in particular in figures 3 and 6, the fixed sideboards 36 are arranged internally with respect to the fixed sideboards 32 of the central section 24 in order to allow the sideboards 26 to turn.
  • the side sections 26 are opened and closed manually by an operator from inside the platform by using two pairs of ropes 42 which ends are anchored to a fixed sideboard 36 of a lateral section 26 and to a corresponding sideboard 32 of the central section 24. From the closed configuration illustrated in figure 2, a single operator standing in platform 22 can turn a side section 26 from the lifted position to the lowered position by pulling the ropes 42 with both hands. After opening the first side section 26, the operator can repeat the same manoeuvre on the second side section 26, so to take the platform 22 to the configuration shown in figure 3. In the same way, starting from the open configuration, one operator standing in platform 22 can turn a side section 26 from the lowered position to the lifted position by pulling the ropes 42.
  • each side section 26 is jointed onto the respective tailboard 34 and can move from an erected position, in which it extends orthogonally with respect to the tailboard 34, to a folded position, in which it extends parallelly with respect to the tailboard 34, and vice versa.
  • the sideboards 38 are folded onto the respective tailboards 34 to prevent the space inside the platform being obstructed by the sideboards 38 in the closed configuration of the platform 22.
  • Figure 2 illustrates the platform in a configuration in which the left-hand sideboard 38 is folded down while the sideboard 38 of the right-hand side section 26 is erected, said side section not having been fully lifted in the configuration illustrated in figure 2.
  • each sideboard 38 is held in erected position by a pair of retaining elements 44 (only one of which is visible in the figures) fastened on the fixed sideboards 36.
  • Each retaining element 44 can slide in the direction shown by the double arrow 46 and is pushed elastically towards a position engaging the sideboard 38.
  • the overhead platform is additionally equipped with a locking device which prevents the rotation of each side section 26 from the lifted position to the folded position if the respective sideboard 38 is not erected.
  • the locking device comprises a sliding bolt 48 fastened to the tailboard 34 of each side section 26.
  • the sliding bolt 48 co-operates with a compressed helicoid spring 50 which tends to push the bolt 48 towards an inward disengaged position.
  • the bolt 48 presents a slanted surface 52 which co-operates with a plate 54 fastened to the folding sideboard 38. As shown in figures 7 and 8, when the folding sideboard 38 is erected, the plate 54 does not interfere with the bolt 48.
  • the spring 50 pushes the bolt towards the inside to a position in which it does not interfere with the sideboard 32 of the central section 24.
  • the plate 54 slides on the slanted surface 52 and pushes the bolt 48 outwards, contrasting the action of the spring 50.
  • the bolt 48 interferes with the sideboard 32 and prevents the rotation of the side section 26.
  • This locking device is, consequently, a safety device for the operator since the platform can only be opened after erecting the sideboards 38, preventing the platform from being even only momentarily without protective sideboards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Tents Or Canopies (AREA)
  • Jib Cranes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
EP99125641A 1999-03-03 1999-12-22 Ausziehbare Arbeitsbühne Expired - Lifetime EP1033343B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999TO000161A IT1308404B1 (it) 1999-03-03 1999-03-03 Piattaforma aerea estensibile
ITTO990161 1999-03-03

Publications (3)

Publication Number Publication Date
EP1033343A2 true EP1033343A2 (de) 2000-09-06
EP1033343A3 EP1033343A3 (de) 2000-12-20
EP1033343B1 EP1033343B1 (de) 2004-08-11

Family

ID=11417556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99125641A Expired - Lifetime EP1033343B1 (de) 1999-03-03 1999-12-22 Ausziehbare Arbeitsbühne

Country Status (5)

Country Link
EP (1) EP1033343B1 (de)
AT (1) ATE273235T1 (de)
DE (1) DE69919317T2 (de)
ES (1) ES2226272T3 (de)
IT (1) IT1308404B1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1027507C2 (nl) * 2004-11-15 2006-05-16 Ted Weenink Uitschuifbaar werkplatform, in het bijzonder voor een hoogwerker.
DE202007005306U1 (de) * 2007-04-11 2008-08-21 Weiss, Franz-Joachim Arbeitsbühne
EP1967486A1 (de) 2007-03-07 2008-09-10 Niftylift Limited Mobile Arbeitsplattform
CN101734583A (zh) * 2008-11-24 2010-06-16 徐州重型机械有限公司 高空作业工程车辆及其作业平台
CN102219169A (zh) * 2011-03-29 2011-10-19 浙江鼎力机械有限公司 高空作业平台的活动作业平台锁止装置
JP2012030943A (ja) * 2010-07-30 2012-02-16 Aichi Corp 高所作業車
CN104140063A (zh) * 2014-07-16 2014-11-12 云南三星机械设备制造股份有限公司 伸缩式作业平台
CN104477815A (zh) * 2014-12-25 2015-04-01 哈尔滨工程大学 平台可伸缩式液压升降机
CN105271079A (zh) * 2015-12-01 2016-01-27 江苏柳工机械有限公司 高空作业平台的上平台延伸限位装置
CN105841988A (zh) * 2016-04-05 2016-08-10 广东精铟海洋工程股份有限公司 互为负载的升降试验机、升降试验***及升降试验方法
CN108840290A (zh) * 2018-08-13 2018-11-20 湖州奔野汽车配件厂 一种具有底部扩大功能的升降平台

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105016261A (zh) * 2015-07-23 2015-11-04 浙江鼎力机械股份有限公司 具有易操作式活动平台锁的剪叉式高空作业平台
CN105015569A (zh) * 2015-07-30 2015-11-04 金鹰重型工程机械有限公司 一种作业平台自动翻转护栏

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1481911A1 (de) * 1967-03-03 1969-10-23 Eisenbau Karl Ladwig Fahrbares Hubgeruest
US3825095A (en) * 1972-10-10 1974-07-23 Pac Craft Prod Inc Aerial scaffold for vehicle
US4068737A (en) * 1975-06-16 1978-01-17 American Mobile Corporation Safety device for mobile work platform lift
FR2411796A1 (fr) * 1977-12-15 1979-07-13 Sleziak Ladislas Nacelle destinee a etre portee par la fourche d'un chariot elevateur
FR2466586A1 (fr) * 1979-09-28 1981-04-10 Alquier Jean Claude Passerelle associable a un chariot elevateur a fourche pour constituer un echafaudage
US5555953A (en) * 1995-01-03 1996-09-17 Henderson; Gary R. Portable scaffolding attachment for front end loader or forklift

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1481911A1 (de) * 1967-03-03 1969-10-23 Eisenbau Karl Ladwig Fahrbares Hubgeruest
US3825095A (en) * 1972-10-10 1974-07-23 Pac Craft Prod Inc Aerial scaffold for vehicle
US4068737A (en) * 1975-06-16 1978-01-17 American Mobile Corporation Safety device for mobile work platform lift
FR2411796A1 (fr) * 1977-12-15 1979-07-13 Sleziak Ladislas Nacelle destinee a etre portee par la fourche d'un chariot elevateur
FR2466586A1 (fr) * 1979-09-28 1981-04-10 Alquier Jean Claude Passerelle associable a un chariot elevateur a fourche pour constituer un echafaudage
US5555953A (en) * 1995-01-03 1996-09-17 Henderson; Gary R. Portable scaffolding attachment for front end loader or forklift

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1027507C2 (nl) * 2004-11-15 2006-05-16 Ted Weenink Uitschuifbaar werkplatform, in het bijzonder voor een hoogwerker.
WO2006052131A1 (en) * 2004-11-15 2006-05-18 Weenink, Ted Extendable working platform, particularly for a personnel lift
EP1967486A1 (de) 2007-03-07 2008-09-10 Niftylift Limited Mobile Arbeitsplattform
DE202007005306U1 (de) * 2007-04-11 2008-08-21 Weiss, Franz-Joachim Arbeitsbühne
CN101734583A (zh) * 2008-11-24 2010-06-16 徐州重型机械有限公司 高空作业工程车辆及其作业平台
CN101734583B (zh) * 2008-11-24 2013-09-04 徐州重型机械有限公司 高空作业工程车辆及其作业平台
JP2012030943A (ja) * 2010-07-30 2012-02-16 Aichi Corp 高所作業車
CN102219169A (zh) * 2011-03-29 2011-10-19 浙江鼎力机械有限公司 高空作业平台的活动作业平台锁止装置
CN104140063A (zh) * 2014-07-16 2014-11-12 云南三星机械设备制造股份有限公司 伸缩式作业平台
CN104477815A (zh) * 2014-12-25 2015-04-01 哈尔滨工程大学 平台可伸缩式液压升降机
CN105271079A (zh) * 2015-12-01 2016-01-27 江苏柳工机械有限公司 高空作业平台的上平台延伸限位装置
CN105841988A (zh) * 2016-04-05 2016-08-10 广东精铟海洋工程股份有限公司 互为负载的升降试验机、升降试验***及升降试验方法
CN108840290A (zh) * 2018-08-13 2018-11-20 湖州奔野汽车配件厂 一种具有底部扩大功能的升降平台

Also Published As

Publication number Publication date
ATE273235T1 (de) 2004-08-15
DE69919317D1 (de) 2004-09-16
ES2226272T3 (es) 2005-03-16
DE69919317T2 (de) 2005-08-25
EP1033343B1 (de) 2004-08-11
EP1033343A3 (de) 2000-12-20
IT1308404B1 (it) 2001-12-17
ITTO990161A1 (it) 2000-09-03

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