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WO1988005759A1 - Dispositif pour table de levage hydraulique - Google Patents

Dispositif pour table de levage hydraulique Download PDF

Info

Publication number
WO1988005759A1
WO1988005759A1 PCT/SE1988/000036 SE8800036W WO8805759A1 WO 1988005759 A1 WO1988005759 A1 WO 1988005759A1 SE 8800036 W SE8800036 W SE 8800036W WO 8805759 A1 WO8805759 A1 WO 8805759A1
Authority
WO
WIPO (PCT)
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.)
Ceased
Application number
PCT/SE1988/000036
Other languages
English (en)
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 DE8888901664T priority Critical patent/DE3874328T2/de
Priority to AT88901664T priority patent/ATE80124T1/de
Publication of WO1988005759A1 publication Critical patent/WO1988005759A1/fr
Priority to DK528088A priority patent/DK160019C/da
Priority to NO884371A priority patent/NO884371D0/no
Anticipated expiration legal-status Critical
Ceased 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

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Handcart (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Lubricants (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).
PCT/SE1988/000036 1987-02-04 1988-02-04 Dispositif pour table de levage hydraulique Ceased WO1988005759A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8888901664T DE3874328T2 (de) 1987-02-04 1988-02-04 Anordnung fuer eine hydraulische hebebuehne.
AT88901664T ATE80124T1 (de) 1987-02-04 1988-02-04 Anordnung fuer eine hydraulische hebebuehne.
DK528088A DK160019C (da) 1987-02-04 1988-09-22 Hydraulisk loeftebord af saksetypen
NO884371A NO884371D0 (no) 1987-02-04 1988-10-03 Anordning ved hydraulisk loeftebord.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8700418A SE456499B (sv) 1987-02-04 1987-02-04 Anordning vid ett hydrauliskt lyftbord
SE8700418-0 1987-02-04

Publications (1)

Publication Number Publication Date
WO1988005759A1 true WO1988005759A1 (fr) 1988-08-11

Family

ID=20367389

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1988/000036 Ceased WO1988005759A1 (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) NO884371D0 (fr)
SE (1) SE456499B (fr)
WO (1) WO1988005759A1 (fr)

Cited By (13)

* 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
JP2001278586A (ja) * 2000-04-03 2001-10-10 Meikikou:Kk テーブルリフト装置
US10618472B2 (en) 2015-08-04 2020-04-14 T-Max (Hangzhou) Technology Co., Ltd. Vehicle and vehicle step apparatus with multiple drive motors
EP3653170A1 (fr) 2018-11-13 2020-05-20 Docmans SPRL Table elevatrice
US10682960B2 (en) 2018-07-20 2020-06-16 T-Max (Hangzhou) Technology Co., Ltd. Vehicle, running board assembly and drive assembly for running board
US11198394B2 (en) 2018-07-20 2021-12-14 T-Max (Hangzhou) Technology Co., Ltd. Vehicle running board apparatus and retractable device thereof
US11376918B2 (en) 2019-03-11 2022-07-05 T-Max (Hangzhou) Technology Co., Ltd. Adjustment device, adjustor and shock absorber
US11414017B2 (en) 2019-03-05 2022-08-16 T-Max (Hangzhou) Technology Co., Ltd. Vehicle step apparatus and vehicle
US11577653B2 (en) 2020-05-11 2023-02-14 T-Max (Hangzhou) Technology Co., Ltd. Step apparatus for vehicle and vehicle
US11584387B2 (en) 2019-09-16 2023-02-21 T-Max (Hangzhou) Technology Co., Ltd. Step apparatus for vehicle and vehicle
US11590897B2 (en) 2020-05-11 2023-02-28 T-Max (Hangzhou) Technology Co., Ltd. Step apparatus for vehicle and vehicle
US11800927B1 (en) 2015-01-24 2023-10-31 Office Kick, Inc. Desktop workspace that adjusts vertically
US11881063B2 (en) 2019-02-20 2024-01-23 T-Max (Hangzhou) Technology Co., Ltd. Management apparatus for a vehicle device, vehicle and server

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US9961989B2 (en) 2016-03-07 2018-05-08 Marc Stefan Witt Radial scissor lift table and method
CN109015005A (zh) * 2018-07-26 2018-12-18 昆明理工大学 一种多维度夹具

Citations (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
US4534544A (en) * 1982-10-16 1985-08-13 Flexlift Hubgerate GmbH Lift
SE450486B (sv) * 1983-08-29 1987-06-29 Edmo Torbjoern Ab Lyftbordskonstruktion

Patent Citations (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
US4534544A (en) * 1982-10-16 1985-08-13 Flexlift Hubgerate GmbH Lift
SE450486B (sv) * 1983-08-29 1987-06-29 Edmo Torbjoern Ab Lyftbordskonstruktion

Cited By (40)

* 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
JP2001278586A (ja) * 2000-04-03 2001-10-10 Meikikou:Kk テーブルリフト装置
US12082696B1 (en) 2015-01-24 2024-09-10 Office Kick, Inc. Desktop workspace that adjusts vertically
US11864654B1 (en) 2015-01-24 2024-01-09 Office Kick, Inc. Desktop workspace that adjusts vertically
US12342937B1 (en) 2015-01-24 2025-07-01 Office Kick, Inc. Desktop workspace that adjusts vertically
US12318002B1 (en) 2015-01-24 2025-06-03 Office Kick, Inc. Desktop workspace that adjusts vertically
US12318003B1 (en) 2015-01-24 2025-06-03 Office Kick, Inc. Desktop workspace that adjusts vertically
US12256842B1 (en) 2015-01-24 2025-03-25 Office Kick, Inc. Desktop workspace that adjusts vertically
US12226015B1 (en) 2015-01-24 2025-02-18 Office Kick, Inc. Desktop workspace that adjusts vertically
US12193569B1 (en) 2015-01-24 2025-01-14 Office Kick, Inc. Desktop workspace that adjusts vertically
US12121149B1 (en) 2015-01-24 2024-10-22 Office Kick, Inc. Desktop workspace that adjusts vertically
US12102229B1 (en) 2015-01-24 2024-10-01 Office Kick, Inc. Desktop workspace that adjusts vertically
US11857073B1 (en) 2015-01-24 2024-01-02 Office Kick, Inc. Desktop workspace that adjusts vertically
US12082695B1 (en) 2015-01-24 2024-09-10 Office Kick, Inc. Desktop workspace that adjusts vertically
US11980289B1 (en) 2015-01-24 2024-05-14 Office Kick, Inc. Desktop workspace that adjusts vertically
US11950699B1 (en) 2015-01-24 2024-04-09 Office Kick, Inc. Desktop workspace that adjusts vertically
US11944196B1 (en) 2015-01-24 2024-04-02 Office Kick, Inc. Desktop workspace that adjusts vertically
US11925264B1 (en) 2015-01-24 2024-03-12 Office Kick, Inc. Desktop workspace that adjusts vertically
US11800927B1 (en) 2015-01-24 2023-10-31 Office Kick, Inc. Desktop workspace that adjusts vertically
US11849843B1 (en) 2015-01-24 2023-12-26 Office Kick, Inc. Desktop workspace that adjusts vertically
US11910926B1 (en) 2015-01-24 2024-02-27 Office Kick, Inc. 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
US12115940B2 (en) 2015-08-04 2024-10-15 T-Max (Hangzhou) Technology, Co., Ltd. Vehicle and vehicle step apparatus with multiple drive motors
US11208043B2 (en) 2015-08-04 2021-12-28 T-Max (Hangzhou) Technology Co., Ltd. Vehicle and vehicle step apparatus with multiple drive motors
US11021108B2 (en) 2015-08-04 2021-06-01 T-Max (Hangzhou) Technology Co., Ltd. Vehicle and vehicle step apparatus with multiple drive motors
US11292390B2 (en) 2018-07-20 2022-04-05 T-Max (Hangzhou) Technology Co., Ltd. Vehicle, running board assembly and drive assembly for running board
US11702012B2 (en) 2018-07-20 2023-07-18 T-Max (Hangzhou) Technology Co., Ltd. Vehicle running board apparatus and retractable device thereof
US10682960B2 (en) 2018-07-20 2020-06-16 T-Max (Hangzhou) Technology Co., Ltd. Vehicle, running board assembly and drive assembly for running board
US12017614B2 (en) 2018-07-20 2024-06-25 T-Max (Hangzhou) Technology Co., Ltd. Vehicle, running board assembly and drive assembly for running board
US11577654B2 (en) 2018-07-20 2023-02-14 T-Max (Hangzhou) Technology Co., Ltd. Vehicle, running board assembly and drive assembly for running board
US11198394B2 (en) 2018-07-20 2021-12-14 T-Max (Hangzhou) Technology Co., Ltd. Vehicle running board apparatus and retractable device thereof
US11318889B2 (en) 2018-07-20 2022-05-03 T-Max (Hangzhou) Technology Co., Ltd. Vehicle, running board assembly and drive assembly for running board
BE1026784A1 (fr) 2018-11-13 2020-06-10 Docmans Sprl Table elevatrice
EP3653170A1 (fr) 2018-11-13 2020-05-20 Docmans SPRL Table elevatrice
US11881063B2 (en) 2019-02-20 2024-01-23 T-Max (Hangzhou) Technology Co., Ltd. Management apparatus for a vehicle device, vehicle and server
US11414017B2 (en) 2019-03-05 2022-08-16 T-Max (Hangzhou) Technology Co., Ltd. Vehicle step apparatus and vehicle
US11376918B2 (en) 2019-03-11 2022-07-05 T-Max (Hangzhou) Technology Co., Ltd. Adjustment device, adjustor and shock absorber
US11584387B2 (en) 2019-09-16 2023-02-21 T-Max (Hangzhou) Technology Co., Ltd. Step apparatus for vehicle and vehicle
US11577653B2 (en) 2020-05-11 2023-02-14 T-Max (Hangzhou) Technology Co., Ltd. Step apparatus for vehicle and vehicle
US11590897B2 (en) 2020-05-11 2023-02-28 T-Max (Hangzhou) Technology Co., Ltd. Step apparatus for vehicle and vehicle

Also Published As

Publication number Publication date
AU1293488A (en) 1988-08-24
EP0344196B1 (fr) 1992-09-02
SE456499B (sv) 1988-10-10
DK160019C (da) 1991-06-17
DE3874328D1 (de) 1992-10-08
SE8700418D0 (sv) 1987-02-04
DK160019B (da) 1991-01-14
NO884371L (no) 1988-10-03
ATE80124T1 (de) 1992-09-15
EP0344196A1 (fr) 1989-12-06
DK528088A (da) 1988-09-22
DE3874328T2 (de) 1993-03-04
NO884371D0 (no) 1988-10-03
SE8700418L (sv) 1988-08-05
DK528088D0 (da) 1988-09-22

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