EP1185478B1 - Plate-forme de travail - Google Patents

Plate-forme de travail Download PDF

Info

Publication number
EP1185478B1
EP1185478B1 EP00945632A EP00945632A EP1185478B1 EP 1185478 B1 EP1185478 B1 EP 1185478B1 EP 00945632 A EP00945632 A EP 00945632A EP 00945632 A EP00945632 A EP 00945632A EP 1185478 B1 EP1185478 B1 EP 1185478B1
Authority
EP
European Patent Office
Prior art keywords
arm members
pair
scissor arms
scissor
working platform
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.)
Expired - Lifetime
Application number
EP00945632A
Other languages
German (de)
English (en)
Other versions
EP1185478A1 (fr
Inventor
Siegfried Winter
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.)
JLG Industries Inc
Original Assignee
Liftlux Potain GmbH
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 Liftlux Potain GmbH filed Critical Liftlux Potain GmbH
Publication of EP1185478A1 publication Critical patent/EP1185478A1/fr
Application granted granted Critical
Publication of EP1185478B1 publication Critical patent/EP1185478B1/fr
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
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/22—Lazy-tongs mechanisms
    • 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
    • B66F11/042—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 actuated by lazy-tongs mechanisms or articulated levers

Definitions

  • the invention relates to a working platform, which has a scissors mechanism with a lower pair of scissor arms, which with at least one upper arranged above Pair of scissor arms is connected, retractable and extendable.
  • Such work platforms are known, for example from FR 2 197 397 A. They are in the Usually arranged on a chassis and can be extended hydraulically on site persons or objects on the platform to the desired level Height to convey.
  • the object of the invention is thus to provide a working platform, wherein the transport height is minimal, without sacrificing stability and load bearing capacity Need to become.
  • a working platform which has a Scissors mechanism with a lower pair of scissor arms, which with at least connected to an upper pair of scissor arms disposed thereon, on and can be extended, solved by the fact that the cross section of the scissor arms decreases towards the top and that the upper pair or the upper pairs of scissor arms on the insides to their the upper end has an outwardly directed bevel, or by having an obliquely attached upper end of the scissor arms is formed.
  • the length of the chamfered upper end of the scissor arms relative to the total length of the scissor arms of a pair of scissor arms the overlying pair of scissor arms increases.
  • the work platform according to the invention on several superimposed arranged pairs of scissor arms 1, which has a in the range of lower pair of scissor arms I arranged and attacking at this Hydraulic drive 2 is extendable and collapsible.
  • the pairs of scissor arms are 1 each pivotable about a central axis 3 and at its upper end 4 with the lower ends 5 of the overlying pair of scissor arms 1 connected.
  • the upper pairs (II, III, IV and V) of scissor arms 1 at its upper inner sides 6 to the upper end 4 towards the outside 7 directed Bevel 8 have.
  • This bevel 8 allows the folding of the Scissor arms 1 (Fig. 2), without that between the superimposed scissor arms 1 a Gap remains free.
  • this can Be made chamfer 8 without loss of stability.
  • For the same reason can also be reduced in cross-section of the scissor arms 1 from bottom to top, resulting in a further weight and transport height reduction leads.
  • Fig. 3 shows the formation of the scissor arms 1 from the lower pair (I) to the uppermost Couple (V). It can be seen that the lower pair (1) one over the entire course having constant cross-section.
  • the overlying pair (II) is connected to the upper inner sides 6 to the upper end 4 toward an outside 7 directed Bevel 8 is provided, i. on the upper inside 6 material was removed or reduced the cross section. The outside 7, however, remains unchanged.
  • the bevel achieved in that the upper end 4 of the scissor arm 1 obliquely to the outside 7 of Scherenarmes 1 directed to the remaining part of the scissor arm 1 is attached.
  • the attached upper end 4 have a smaller cross-section than the remaining part of the Scissor arm 1.
  • the bevel 8 expediently takes place (i.e., the angle between the remainder of the scissor arm 1 and the bevelled one upper end 4) towards the top, as well as the length of the chamfered upper end 4 of the scissor arm 1 in relation to the total length of the scissor arm 1 upwards increases.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Agricultural Machines (AREA)
  • Pallets (AREA)
  • Vehicle Body Suspensions (AREA)
  • Gloves (AREA)

Claims (4)

  1. Plate-forme de travail qui peut être montée et descendue au moyen d'un mécanisme de pantographe ayant une paire inférieure de bras qui est reliée avec au moins une paire supérieure de bras située au-dessus, caractérisée en ce que la section transversale des bras diminue vers le haut et en ce que la paire supérieure ou les paires supérieures (II, III, IV, V) de bras (1) est / sont munie(s) sur la face interne (6) en direction de leur extrémité supérieure (4) d'un biseautage (8) dirigé vers l'extérieur qui est formé par une extrémité supérieure (4) disposée obliquement.
  2. Plate-forme de travail selon la revendication 1, caractérisée en ce que l'extrémité supérieure (4) disposée obliquement des bras (1) a une section transversale plus faible que le reste du bras (1).
  3. Plate-forme de travail selon la revendication 1, caractérisée en ce que le biseautage (8) d'une paire (I, II, III, IV) de bras (1) augmente par rapport à la paire (II, III, IV, V) de bras (1) située au-dessus.
  4. Plate-forme de travail selon la revendication 1, caractérisée en ce que la longueur de l'extrémité supérieure biseautée (4) du bras (1) augmente par rapport à la longueur totale du bras (1) d'une paire (II, III, IV) de bras (1) à la paire (III, IV, V) de bras (1) située par dessus.
EP00945632A 1999-06-15 2000-06-15 Plate-forme de travail Expired - Lifetime EP1185478B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19927310 1999-06-15
DE19927310A DE19927310C2 (de) 1999-06-15 1999-06-15 Arbeitsbühne
PCT/DE2000/001893 WO2000076903A1 (fr) 1999-06-15 2000-06-15 Plate-forme de travail

Publications (2)

Publication Number Publication Date
EP1185478A1 EP1185478A1 (fr) 2002-03-13
EP1185478B1 true EP1185478B1 (fr) 2003-04-02

Family

ID=7911335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00945632A Expired - Lifetime EP1185478B1 (fr) 1999-06-15 2000-06-15 Plate-forme de travail

Country Status (8)

Country Link
US (1) US6595322B2 (fr)
EP (1) EP1185478B1 (fr)
AT (1) ATE236073T1 (fr)
AU (1) AU771429B2 (fr)
DE (2) DE19927310C2 (fr)
ES (1) ES2194752T3 (fr)
PT (1) PT1185478E (fr)
WO (1) WO2000076903A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111302279A (zh) * 2020-02-19 2020-06-19 南京林业大学 一种楼道安防监控摄像头安装辅助装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2875383C (fr) 2004-05-17 2016-08-02 Stertil B.V. Dispositif et systeme de levage d'un vehicule a moteur
DE102006028946B4 (de) * 2006-06-23 2008-09-04 Camera Dynamics Gmbh Scherenpantograph
CN201598148U (zh) * 2009-02-05 2010-10-06 崔侃 结构紧凑型剪叉式高空作业举升车
US9296596B2 (en) 2012-10-15 2016-03-29 Cameron Lanning Cormack Hybrid wedge jack/scissor lift lifting apparatus and method of operation thereof
CN103224209A (zh) * 2013-04-24 2013-07-31 山东力高升降机械有限公司 升降平台坑洼保护装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US214224A (en) * 1879-04-08 Improvement in fire-escape ladders
US552531A (en) * 1896-01-07 Fire-escape
US461682A (en) * 1891-10-20 Fire-escape
FR608007A (fr) * 1925-12-16 1926-07-13 échelle pliante transportable pour pose de fils aériens ou autres applications
US2862689A (en) * 1955-11-03 1958-12-02 Southworth Machine Co Paper lift
US2945551A (en) * 1957-08-05 1960-07-19 Mark H Annin Portable platform elevating device
US3596735A (en) * 1969-10-30 1971-08-03 Howard H Denier Portable elevator working and load-lifting platform
US3672104A (en) * 1970-12-23 1972-06-27 Trw Inc Nesting three dimensional lazy tong structure
AU4668572A (en) * 1971-10-14 1974-03-21 Delmar Engineering Laboratories Stress balanced extendible boom structure
US3817346A (en) * 1972-08-21 1974-06-18 D Wehmeyer Mobile scaffolding
US4175644A (en) * 1973-10-15 1979-11-27 Robert Staines Scissors lift
DE3713927A1 (de) * 1987-04-25 1988-11-10 Ernst Langewellpott Scherenhebebuehne
JPH02164653A (ja) * 1988-12-19 1990-06-25 Koichi Nishikawa リンク式リフトを有するターンテーブル型自動車整備装置
US5429210A (en) * 1994-01-21 1995-07-04 Hansen, Deceased; Elmer K. Adjustable height wagon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111302279A (zh) * 2020-02-19 2020-06-19 南京林业大学 一种楼道安防监控摄像头安装辅助装置

Also Published As

Publication number Publication date
ATE236073T1 (de) 2003-04-15
DE19927310A1 (de) 2001-11-29
WO2000076903A1 (fr) 2000-12-21
AU771429B2 (en) 2004-03-18
US6595322B2 (en) 2003-07-22
PT1185478E (pt) 2003-08-29
DE19927310C2 (de) 2002-12-05
ES2194752T3 (es) 2003-12-01
DE50001627D1 (de) 2003-05-08
EP1185478A1 (fr) 2002-03-13
US20020043425A1 (en) 2002-04-18
AU5964800A (en) 2001-01-02

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