TW267992B - - Google Patents

Info

Publication number
TW267992B
TW267992B TW083109381A TW83109381A TW267992B TW 267992 B TW267992 B TW 267992B TW 083109381 A TW083109381 A TW 083109381A TW 83109381 A TW83109381 A TW 83109381A TW 267992 B TW267992 B TW 267992B
Authority
TW
Taiwan
Prior art keywords
support platforms
nonalignment
raising
alignment
horizontal plane
Prior art date
Application number
TW083109381A
Other languages
Chinese (zh)
Original Assignee
Ravaglioli Spa
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 Ravaglioli Spa filed Critical Ravaglioli Spa
Application granted granted Critical
Publication of TW267992B publication Critical patent/TW267992B/zh

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors
    • 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
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B66F7/20—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by several jacks with means for maintaining the platforms horizontal during movement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Jib Cranes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • General Induction Heating (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Earth Drilling (AREA)
  • Elevator Control (AREA)

Abstract

The present invention proposes a solution to the problem caused by the nonalignment, with respect to a horizontal plane, of the support platforms (1, 2) in an electrohydraulic lifting device equipped with two support platforms. The nonalignment occurs in the raising and lowering stages and the invention allows for controlling continuously the height of the support platforms (1, 2) and for promptly carrying out the necessary adjustment to set again the support platforms (1, 2) in alignment with each other.
TW083109381A 1993-10-22 1994-10-11 TW267992B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT93BO000420A IT1264249B1 (en) 1993-10-22 1993-10-22 "ELECTROHYDRAULIC LIFT"

Publications (1)

Publication Number Publication Date
TW267992B true TW267992B (en) 1996-01-11

Family

ID=11339277

Family Applications (1)

Application Number Title Priority Date Filing Date
TW083109381A TW267992B (en) 1993-10-22 1994-10-11

Country Status (7)

Country Link
EP (1) EP0724541B1 (en)
AT (1) ATE176452T1 (en)
AU (1) AU8114594A (en)
DE (1) DE69416422D1 (en)
IT (1) IT1264249B1 (en)
TW (1) TW267992B (en)
WO (1) WO1995011189A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5597987A (en) * 1995-01-25 1997-01-28 Delaware Capital Formation, Inc. Twin post, telescoping jack hydraulic elevator system
DE19709474A1 (en) * 1997-03-07 1998-09-10 Rexroth Mannesmann Gmbh Hydraulic lifting device
WO1999043954A1 (en) * 1998-02-27 1999-09-02 Voith Hydro Gmbh & Co. Kg Ring gate control system for francis turbine
ITVI980165A1 (en) * 1998-09-07 2000-03-07 Francesco Fiorese HYDRAULIC CIRCUIT FOR THE OPERATION OF SERVICE BRIDGES FOR THE LIFTING OF VEHICLES
SE521586C2 (en) * 2001-08-06 2003-11-18 Norba Ab Arrangement for loading material
US6763916B2 (en) 2002-04-12 2004-07-20 Delaware Capital Formation, Inc. Method and apparatus for synchronizing a vehicle lift
CN1299968C (en) * 2003-08-06 2007-02-14 机械工业部西安重型机械研究所 Pans four-cylinder hydraulic lifting device
US7150073B2 (en) 2004-04-27 2006-12-19 Delaware Capital Formation, Inc. Hinge pin
DE102008021149A1 (en) * 2008-04-28 2009-10-29 Maha Maschinenbau Haldenwang Gmbh & Co. Kg hoist
DE102009056077B4 (en) * 2009-11-30 2020-01-09 Hs Fahrzeugbau Gmbh Disposal vehicle with at least one feed device for two waste containers
DE102010040671A1 (en) * 2010-09-13 2012-03-15 Maha Maschinenbau Haldenwang Gmbh & Co. Kg hydraulic ramp
US10087958B2 (en) 2012-04-19 2018-10-02 Cascade Corporation Fluid power control system for mobile load handling equipment
DE102013103861A1 (en) 2013-04-17 2014-11-06 Herrmann Ag Lifting platform with hydraulic coupling of the lifting rams
CN103708376B (en) * 2013-12-17 2015-09-23 天津大学 Large-scale deck plate Large travel range synchronization of jacking up control structure
JP2016003696A (en) * 2014-06-16 2016-01-12 日本機器鋼業株式会社 Safety device of hydraulic elevator
CN104500486B (en) * 2014-12-31 2017-01-25 中联重科股份有限公司 Dual-way pressure system, pressure equalizing device thereof, double-piston cylinder equipment and lifting system
CN104930002B (en) * 2015-06-12 2017-01-25 中国建筑股份有限公司 Hydraulic synchronous motor hydraulic console
US10227222B2 (en) 2015-07-31 2019-03-12 Vehicle Service Group, Llc Precast concrete pit
US10246313B2 (en) 2015-07-31 2019-04-02 Vehicle Service Group, Llc Precast concrete pit
CA2998893A1 (en) * 2017-03-23 2018-09-23 The Raymond Corporation Systems and methods for mast stabilization on a material handling vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3336713A1 (en) * 1983-10-08 1985-04-25 Mannesmann Rexroth GmbH, 8770 Lohr Synchronous control system for hydraulic multi-cylinder drives
IT1187790B (en) * 1985-06-24 1987-12-23 Corghi Elettromecc Spa HYDRAULIC CONTROL SYSTEM FOR LIFT BRIDGES OF VEHICLES IN GENERAL
AT385466B (en) * 1985-12-30 1988-04-11 Hoerbiger Hydraulik SIMULTANEOUS CONTROL UNIT FOR A HYDRAULIC MULTI-CYLINDER DRIVE
DE3907441A1 (en) * 1989-03-08 1990-09-13 Otto Lift Systeme Gmbh DEVICE FOR EMPTYING IN PARTICULAR WASTE CONTAINERS

Also Published As

Publication number Publication date
AU8114594A (en) 1995-05-08
IT1264249B1 (en) 1996-09-23
WO1995011189A1 (en) 1995-04-27
ITBO930420A0 (en) 1993-10-22
ITBO930420A1 (en) 1995-04-22
EP0724541B1 (en) 1999-02-03
ATE176452T1 (en) 1999-02-15
DE69416422D1 (en) 1999-03-18
EP0724541A1 (en) 1996-08-07

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