EP2045204A1 - Scherenlift - Google Patents

Scherenlift Download PDF

Info

Publication number
EP2045204A1
EP2045204A1 EP08165753A EP08165753A EP2045204A1 EP 2045204 A1 EP2045204 A1 EP 2045204A1 EP 08165753 A EP08165753 A EP 08165753A EP 08165753 A EP08165753 A EP 08165753A EP 2045204 A1 EP2045204 A1 EP 2045204A1
Authority
EP
European Patent Office
Prior art keywords
pivot
leg
centre
rotatable roller
load carrying
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
EP08165753A
Other languages
English (en)
French (fr)
Other versions
EP2045204B1 (de
Inventor
Trevor Piggott
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.)
Kone Corp
Original Assignee
UK Lift Co Ltd
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 UK Lift Co Ltd filed Critical UK Lift Co Ltd
Publication of EP2045204A1 publication Critical patent/EP2045204A1/de
Application granted granted Critical
Publication of EP2045204B1 publication Critical patent/EP2045204B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/08Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement hydraulically or pneumatically operated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/06Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
    • B66F7/065Scissor linkages, i.e. X-configuration

Definitions

  • This invention relates to a scissor lift.
  • the prior art scissor lift in Figure 1 is shown in the open, raised position with the platform and scissor legs superimposed, in dashed lines, in the lowered position. It comprises an inner scissor leg 1 comprising a pair of leg members spaced apart by rigid connecting member 5 and attached at one end to a lower frame 7 by fixed pivot 12 and at the opposite end is provided with a freely rotatable roller 15 which contacts an upper load carrying platform 8 and an outer scissor leg 2, comprising a pair of leg members spaced apart by rigid connecting member 4 and attached at one end to the upper load carrying platform 8 by a fixed pivot 13 and at the opposite end is provided with a freely rotatable wheel 14 which contacts the lower frame 7.
  • the inner and outer legs 1 and 2 are interconnected by a common pivot 3.
  • At least one extendable force member or ram 6 connected at one end by a pivot means 17 to the inner scissor leg connecting member 5 and connected at the other end by a pivot means 16 to the outer scissor leg connecting member 4 such that when the force member 6 is extended or retracted the legs 1 and 2 rotate in opposite directions about the central pivot 3 causing the load carrying platform 8 to raise and lower.
  • a scissor lift comprising a load carrying platform, a base frame, a first and second leg unit situated between the platform and the frame, the leg units crossing each other at an axis and being pivotally interconnected at said axis, the first leg being connected at one end to the load carrying platform by first fixed pivot means and provided at the other end with first freely rotatable roller means contacting the base frame; the second leg unit being connected at one end to the base frame by second fixed pivot means and provided at the other end with second freely rotatable roller means contacting the underside of the load carrying platform, wherein the distance between the first fixed pivot means and the interconnecting pivot and the distance between the first freely rotatable roller means and the interconnecting pivot are different and the centre of the first fixed pivot being above the line of an axis passing through the centre of the first freely rotatable roller means and the centre of the said interconnecting pivot, and wherein the distance between the second fixed pivot means and the interconnecting pivot and the second rot
  • the invention provides a scissor lift comprising one or more of the novel features and/or combinations of features herein disclosed.
  • a scissor lift embodying the invention is shown in Figures 2a , 2b and 3 .
  • Components having similar functions to those of the lift of Figure 1 have been given like reference numerals.
  • the scissor lift in Figures 2a and 2b comprises a load carrying platform with bracing members 8 and with an upright member 9 housing a force member 10 and a base frame 7.
  • a first leg 1 comprising two spaced apart parallel outer leg members with a connecting member 4, each outer leg member being connected at one end to the load carrying platform 8 by means of a fixed pivot 13 and at the other end provided with freely rotating roller 14 rotating on a central pivot and contacting the base frame 7
  • a second leg 2 comprising two spaced apart parallel inner leg members with a connecting member 5 each inner leg being connected at one end to the base frame by a fixed pivot 12 and at the other end provided with a freely rotatable roller 15 rotating on a central pivot and contacting the load carrying platform 8.
  • the outer leg 1 and the inner leg 2 are connected to and rotate about a common pivot 3 and at least one extending force member, ram 16 is pivotally connected between connecting members 4 and 5 by pivots 16 and 17 respectively.
  • ram 16 is pivotally connected between connecting members 4 and 5 by pivots 16 and 17 respectively.
  • Figure 3 shows the arrangement of the pivots 13, 14 of the inner leg 1 and pivots15, 16 of the outer leg 2 and connected to each other by a common pivot 3. It can be seen that the pivot 13 is off set from the projected line of an axis passing through pivots 14 and 3 respectively and that pivot 15 is off set from the projected line of an axis passing through pivots 12 and 3 respectively. Furthermore, the distance between the pivots 14 and 3 of outer leg 1 are greater than the distance between the pivots 13 and 3 and the distance between the pivots 12 and 3 of the inner leg 2 are greater than the distance between the pivots 15 and 3.
  • the offsetting in this embodiment is done by mounting the pivots 13 and 15 on projecting or protruding parts 21, 22 respectively at the ends of the legs remote from pivots 14 and 12 respectively. These may extend generally outwardly as shown from the elongate direction of each leg, preferably at 90° although they may be at other non-zero angles to the longitudinal leg axis. They may be protruding bosses or protrusions as shown.
  • inner and outer legs could of course be varied or transposed so that references to an 'inner' leg could be an outer leg and vice versa, ie the arrangement could be reversed or otherwise altered.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP20080165753 2007-10-02 2008-10-02 Scherenlift Not-in-force EP2045204B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0719106A GB0719106D0 (en) 2007-10-02 2007-10-02 Scissor lift

Publications (2)

Publication Number Publication Date
EP2045204A1 true EP2045204A1 (de) 2009-04-08
EP2045204B1 EP2045204B1 (de) 2012-06-20

Family

ID=38738964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080165753 Not-in-force EP2045204B1 (de) 2007-10-02 2008-10-02 Scherenlift

Country Status (2)

Country Link
EP (1) EP2045204B1 (de)
GB (1) GB0719106D0 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103762520A (zh) * 2014-02-21 2014-04-30 国网湖南省电力公司带电作业中心 用于10千伏配电线路旁路作业的电动移动平台
CN105217514A (zh) * 2015-10-20 2016-01-06 四川长虹电器股份有限公司 自动升降台
CN105337211A (zh) * 2015-11-20 2016-02-17 国家电网公司 一种具备远程指挥功能的带电作业操作台
CN107324241A (zh) * 2017-08-01 2017-11-07 苏州大激自动化科技有限公司 布卷升降承运小车
CN108115576A (zh) * 2018-01-03 2018-06-05 广东东箭汽车科技股份有限公司 一种承载平台升降机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167434A1 (de) * 1984-06-06 1986-01-08 Société Industrielle d'Equipement Technique d'Appareils de Manutention Hebebühne, insbesondere für schwere Lasten
GB2178276A (en) 1983-04-14 1987-02-04 Control Data Corp Method and apparatus for detecting the channel to which a television receiver system is tuned
GB2178726A (en) 1985-08-03 1987-02-18 Uk Lift Company Limited The Scissor lift
DE9205900U1 (de) * 1992-05-07 1992-10-01 Otto Nussbaum Gmbh & Co Kg, 7640 Kehl, De
DE9413187U1 (de) * 1994-08-16 1994-10-13 Haldenwang Gmbh & Co Kg Scheren-Hebebühne

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178276A (en) 1983-04-14 1987-02-04 Control Data Corp Method and apparatus for detecting the channel to which a television receiver system is tuned
EP0167434A1 (de) * 1984-06-06 1986-01-08 Société Industrielle d'Equipement Technique d'Appareils de Manutention Hebebühne, insbesondere für schwere Lasten
GB2178726A (en) 1985-08-03 1987-02-18 Uk Lift Company Limited The Scissor lift
DE9205900U1 (de) * 1992-05-07 1992-10-01 Otto Nussbaum Gmbh & Co Kg, 7640 Kehl, De
DE9413187U1 (de) * 1994-08-16 1994-10-13 Haldenwang Gmbh & Co Kg Scheren-Hebebühne

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103762520A (zh) * 2014-02-21 2014-04-30 国网湖南省电力公司带电作业中心 用于10千伏配电线路旁路作业的电动移动平台
CN105217514A (zh) * 2015-10-20 2016-01-06 四川长虹电器股份有限公司 自动升降台
CN105337211A (zh) * 2015-11-20 2016-02-17 国家电网公司 一种具备远程指挥功能的带电作业操作台
CN105337211B (zh) * 2015-11-20 2017-08-25 国家电网公司 一种具备远程指挥功能的带电作业操作台
CN107324241A (zh) * 2017-08-01 2017-11-07 苏州大激自动化科技有限公司 布卷升降承运小车
CN107324241B (zh) * 2017-08-01 2022-11-01 常熟市中捷台板厂 布卷升降承运小车
CN108115576A (zh) * 2018-01-03 2018-06-05 广东东箭汽车科技股份有限公司 一种承载平台升降机

Also Published As

Publication number Publication date
GB0719106D0 (en) 2007-11-14
EP2045204B1 (de) 2012-06-20

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