EP0344196A1 - Dispositif pour table de levage hydraulique. - Google Patents

Dispositif pour table de levage hydraulique.

Info

Publication number
EP0344196A1
EP0344196A1 EP88901664A EP88901664A EP0344196A1 EP 0344196 A1 EP0344196 A1 EP 0344196A1 EP 88901664 A EP88901664 A EP 88901664A EP 88901664 A EP88901664 A EP 88901664A EP 0344196 A1 EP0344196 A1 EP 0344196A1
Authority
EP
European Patent Office
Prior art keywords
scissor
scissor arms
section
power transmission
lifting table
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
EP88901664A
Other languages
German (de)
English (en)
Other versions
EP0344196B1 (fr
Inventor
Lars Johansson
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.)
Hymo AB
Original Assignee
Hymo AB
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 Hymo AB filed Critical Hymo AB
Priority to AT88901664T priority Critical patent/ATE80124T1/de
Publication of EP0344196A1 publication Critical patent/EP0344196A1/fr
Application granted granted Critical
Publication of EP0344196B1 publication Critical patent/EP0344196B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Definitions

  • the present invention relates to an arrangement for a hydraulic lifting table of the scissor type with two pairs of mutually 5J attached scissor arms, which at their ends are connected by means of pivots and rollers to a lower frame section and an upper table section, and are mutually and operatively connected to the pivotable connection, comprising a power transmission arrangement for raising and lowering the table section.
  • the lifting capacity of the table is determined by the maximum pressure available from the power transmission arrangement.
  • the power transmission arrangement is pivotally secured to the frame section and is so arranged, on the lifting table being raised, as to exert a separating effect on guide curves which, at the pivotal connection to the frame section, are operatively connected to it and to one of the scissor arms of each pair of 30." scissor arms.
  • the scissor arm concerned Since a turning moment is generated at one end of the respective " - scissor arm in this design, the scissor arm concerned must be designed to withstand the resulting stress along its whole 35. ' length. This means that the lifting table, as a consequence of the dimensions of the scissor arm, is given a minimum height which is unacceptably large for many applications.
  • the power transmission arrangement contains for each pair of scissor arms a hydraulic cylinder pivotally mounted at said connection; the pi-ston rod of the hydraulic cylinder is so arranged as to interact ,du ⁇ ' ng the whole of the raising and lowering movement of the lifting table via rollers with at least two guide curves arranged in conjunction with the common bearing shaft for the scissor arms and operatively connected to the respective scissor arm; and the mutually and operatively connected scissor arms, which are pivotally connected to the frame section, consist of a beam of 'U'—section open towards the top, in which the appropriate power transmission arrangement is arranged.
  • Fig. 1 is a perspective view illustrating an embodiment of a lifting table in accordance with the present invention.
  • Fig. 2 illustrates a plan view from the side showing details of the interaction of the power transmission arrangement with the guide curves.
  • the designations 1a, 1b and 2a, 2b are used in Fig. 1 in respect of scissor arms connected together by means of shafts 1c, 2c for a hydraulic lifting table of the scissor type, which consists of a lower frame section 3 and an upper table section 4.
  • the scissor arms 1a, 2a are mutually connected at their lower ends to a shaft 5 and are pivotally mounted about same relative to the frame section 3.
  • the upper ends of the scissor arms 1b, 2b are pivotally mounted in the table section 4.
  • rollers 6 of which those at the upper end of the scissor arm 2a and at the lower end of the scissor arm 2b are not shown in the drawing.
  • the purpose of the rollers 6 is to facilitate the movement of the aforementioned ends of the scissor arms along the frame sections and table sections, 3 and 4.
  • Each of the scissor arms 1a and 2a consists of a beam of 'U 1 —section open towards the top, in which there is arranged, pivotally mounted on the shaft 5, a hydraulic cylinder 7a and 7b for raising and lowering of the table section 4.
  • Each of the scissor arms 1b and 2b is manufactured from two flat steel profiles connected together at their respective ends by means of cross— ieces.
  • Three rollers 9a, 9b and 9c are arranged on a common shaft 10 at the outer end of the piston rod 8a of the hydraulic cylinder 7a.
  • the roller 9b interacts with a guide curve 11b, which is operatively connected to the scissor arm 1b.
  • the guide curves 11a and 11c constitute a linear gradient, and their primary function is to provide a moment arm, designated by 12 in Fig. 2, between the point of engagement of the roller 9b with the guide curve 11b and the common angle of pivoting 1c of the pair 1a, 1b of scissor arms.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Handcart (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Lubricants (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

Un agencement, destiné à une table de levage hydraulique du type à ciseaux, comprend deux paires de bras de ciseaux (1a, 1b; 2a, 2b) fixées l'une à l'autre qui, à leurs extrémités, sont reliées au moyen de pivots et de cylindres à une section de structure inférieure (3) et à une section de table supérieure (4). Les bras des ciseaux (1a, 1b; 2a, 2b) sont reliés les uns aux autres et de façon fonctionnelle à une connexion pivotante (5) avec la section de structure (3). La table de levage comprend un agencement de transmission de force (7, 8, 9, 11) servant à soulever et à abaisser la section de table (4). La présente invention se caractérise par le fait que l'agencement de transmission de force (7, 8, 9, 11) comporte pour chaque paire de bras de ciseaux (1a, 1b; 2a, 2b) un vérin hydraulique (7a; 7b) monté de façon pivotante sur ladite connexion (5). La bielle (8a, 8b) du vérin est conçue de façon à agir en interaction par l'intermédiaire de cylindres (9a, 9b, 9c) avec des guides incurvés (11a, 11b, 11c) placés en conjonction avec l'arbre de portée commun (1c, 2c) des bras de ciseaux (1a, 1b; 2a, 2b) et reliés de façon fonctionnelle au bras de ciseaux respectif (1a, 1b; 2a, 2b).
EP88901664A 1987-02-04 1988-02-04 Dispositif pour table de levage hydraulique Expired - Lifetime EP0344196B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88901664T ATE80124T1 (de) 1987-02-04 1988-02-04 Anordnung fuer eine hydraulische hebebuehne.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8700418 1987-02-04
SE8700418A SE456499B (sv) 1987-02-04 1987-02-04 Anordning vid ett hydrauliskt lyftbord

Publications (2)

Publication Number Publication Date
EP0344196A1 true EP0344196A1 (fr) 1989-12-06
EP0344196B1 EP0344196B1 (fr) 1992-09-02

Family

ID=20367389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88901664A Expired - Lifetime EP0344196B1 (fr) 1987-02-04 1988-02-04 Dispositif pour table de levage hydraulique

Country Status (8)

Country Link
EP (1) EP0344196B1 (fr)
AT (1) ATE80124T1 (fr)
AU (1) AU1293488A (fr)
DE (1) DE3874328T2 (fr)
DK (1) DK160019C (fr)
NO (1) NO884371L (fr)
SE (1) SE456499B (fr)
WO (1) WO1988005759A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9302967U1 (de) * 1993-03-02 1993-04-22 Hydraulik Techniek, Emmen Scherenhubtisch
JP3435119B2 (ja) * 2000-04-03 2003-08-11 株式会社メイキコウ テーブルリフト装置
CN102963837A (zh) * 2012-11-16 2013-03-13 无锡阳工机械制造有限公司 一种升降机支架结构连接方法
US10244861B1 (en) 2015-01-24 2019-04-02 Nathan Mark Poniatowski Desktop workspace that adjusts vertically
US10618472B2 (en) 2015-08-04 2020-04-14 T-Max (Hangzhou) Technology Co., Ltd. Vehicle and vehicle step apparatus with multiple drive motors
US9961989B2 (en) 2016-03-07 2018-05-08 Marc Stefan Witt Radial scissor lift table and method
US11198394B2 (en) 2018-07-20 2021-12-14 T-Max (Hangzhou) Technology Co., Ltd. Vehicle running board apparatus and retractable device thereof
US10384614B1 (en) 2018-07-20 2019-08-20 T-Max (Hangzhou) Technology Co., Ltd. Vehicle, running board assembly and drive assembly for running board
CN109015005A (zh) * 2018-07-26 2018-12-18 昆明理工大学 一种多维度夹具
BE1026784B1 (fr) 2018-11-13 2020-06-15 Docmans Sprl Table elevatrice
CN110012061B (zh) 2019-02-20 2022-02-08 杭州天铭科技股份有限公司 车用装备的管理装置、车辆及服务器
WO2020177186A1 (fr) 2019-03-05 2020-09-10 杭州天铭科技股份有限公司 Dispositif de barre de marchepied de véhicule et véhicule
WO2020181617A1 (fr) 2019-03-11 2020-09-17 杭州天铭科技股份有限公司 Appareil d'ajustement, dispositif d'ajustement, et absorbeur de chocs
US11584387B2 (en) 2019-09-16 2023-02-21 T-Max (Hangzhou) Technology Co., Ltd. Step apparatus for vehicle and vehicle
WO2021227616A1 (fr) 2020-05-11 2021-11-18 杭州天铭科技股份有限公司 Dispositif de marchepied de véhicule, et véhicule
WO2021227617A1 (fr) 2020-05-11 2021-11-18 杭州天铭科技股份有限公司 Appareil de pédale de véhicule, et véhicule

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2862689A (en) * 1955-11-03 1958-12-02 Southworth Machine Co Paper lift
US2937852A (en) * 1956-10-29 1960-05-24 Jesse E Clarke Lift device
DE1756270A1 (de) * 1968-04-29 1970-03-12 Katt Anton F Hubkolbenantrieb fuer Scherenhubelemente
DE8229071U1 (de) * 1982-10-16 1983-06-23 Flexlift Hubgeräte GmbH, 4800 Bielefeld Hubvorrichtung
SE450486B (sv) * 1983-08-29 1987-06-29 Edmo Torbjoern Ab Lyftbordskonstruktion

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8805759A1 *

Also Published As

Publication number Publication date
WO1988005759A1 (fr) 1988-08-11
NO884371D0 (no) 1988-10-03
DK160019B (da) 1991-01-14
DK160019C (da) 1991-06-17
AU1293488A (en) 1988-08-24
SE8700418D0 (sv) 1987-02-04
DE3874328D1 (de) 1992-10-08
EP0344196B1 (fr) 1992-09-02
SE456499B (sv) 1988-10-10
SE8700418L (sv) 1988-08-05
DK528088D0 (da) 1988-09-22
ATE80124T1 (de) 1992-09-15
DK528088A (da) 1988-09-22
DE3874328T2 (de) 1993-03-04
NO884371L (no) 1988-10-03

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