EP1291314A3 - Aerial work platform with a hydraulic control - Google Patents

Aerial work platform with a hydraulic control Download PDF

Info

Publication number
EP1291314A3
EP1291314A3 EP02020147A EP02020147A EP1291314A3 EP 1291314 A3 EP1291314 A3 EP 1291314A3 EP 02020147 A EP02020147 A EP 02020147A EP 02020147 A EP02020147 A EP 02020147A EP 1291314 A3 EP1291314 A3 EP 1291314A3
Authority
EP
European Patent Office
Prior art keywords
hydraulic control
aerial work
work platform
horizontal
angle
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.)
Withdrawn
Application number
EP02020147A
Other languages
German (de)
French (fr)
Other versions
EP1291314A2 (en
Inventor
Reinhard Brügger
Hermann Leusder
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.)
B Teupen Maschinenbau GmbH
Original Assignee
B Teupen Maschinenbau 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 B Teupen Maschinenbau GmbH filed Critical B Teupen Maschinenbau GmbH
Publication of EP1291314A2 publication Critical patent/EP1291314A2/en
Publication of EP1291314A3 publication Critical patent/EP1291314A3/en
Withdrawn legal-status Critical Current

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
    • F15B11/003—Systems with load-holding valves
    • 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
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
    • B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50545—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using braking valves to maintain a back pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Hubarbeitsbühne mit Hydraulik-Steuerung sowie mit einem Ausleger, bestehend aus zwei, mit einem Basiselement (8) eine Z-Konfiguration bildenden, an dem Basiselement (8) beweglich angeordneten Auslegerarmen (1, 2), von denen der Unterarm (1) einen ersten Winkel (α) mit der Horizontalen und der Oberarm (2) einen Winkel (β) mit der Horizontalen bildet. Die Hubarbeitsbühne ist mit einer Reichweitenbegrenzungseinheit (RE) ausgestattet, bei der in Abhängigkeit von einer mathematischen Funktion der beiden Winkel (α, β) ein Hebel (271) betätigbar ist, der die Hydraulik- anhält oder nur noch lastmoment-verkleinernde Bewegungen der Auslegerarme (1, 2) zuläßt.

Figure 00000001
Lifting platform with hydraulic control and with a boom, consisting of two, with a base member (8) forming a Z-configuration, on the base member (8) movably arranged cantilever arms (1, 2), of which the lower arm (1) has a first Angle (α) with the horizontal and the upper arm (2) forms an angle (β) with the horizontal. The aerial work platform is equipped with a range limiting unit (RE) in which, depending on a mathematical function of the two angles (α, β), a lever (271) is actuatable, which stops the hydraulic or only load torque-reducing movements of the extension arms ( 1, 2) permits.
Figure 00000001
EP02020147A 2001-09-11 2002-09-09 Aerial work platform with a hydraulic control Withdrawn EP1291314A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10144501A DE10144501A1 (en) 2001-09-11 2001-09-11 Aerial work platform with hydraulic control
DE10144501 2001-09-11

Publications (2)

Publication Number Publication Date
EP1291314A2 EP1291314A2 (en) 2003-03-12
EP1291314A3 true EP1291314A3 (en) 2005-03-23

Family

ID=7698485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020147A Withdrawn EP1291314A3 (en) 2001-09-11 2002-09-09 Aerial work platform with a hydraulic control

Country Status (2)

Country Link
EP (1) EP1291314A3 (en)
DE (1) DE10144501A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8187045B2 (en) 2007-01-19 2012-05-29 Thibodaux Ronald J Air-propelled vessel with articulating member
DE102012106222A1 (en) * 2012-07-11 2014-01-16 Ruthmann Gmbh & Co. Kg Method for automatically limiting width range in aerial work platform, involves measuring angle of elevation of forearm and adjusting maximum permitted pressure values depending on angle of elevation to stability limit of platform
DE102015104679C5 (en) 2015-03-26 2023-09-07 Open Mind Technologies Ag Process for removing material from flat surfaces of a workpiece
US10519014B2 (en) 2017-06-30 2019-12-31 Mezzanine Safeti-Gates, Inc. Safety barrier for loading dock lift
CN113685397B (en) * 2021-08-25 2023-11-17 国网福建省电力有限公司泉州供电公司 Hydraulic control system applied to 10kV live working platform

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2408405A1 (en) * 1973-02-21 1974-08-22 Simon Eng Dudley Ltd HYDRAULICALLY OPERATED LIFTING DEVICE
GB2072137A (en) * 1980-02-20 1981-09-30 Cella Spa Limiting the range of lifting apparatus
GB2078197A (en) * 1980-06-04 1982-01-06 Hiab Foco Ab Load limiting device
EP0047726A2 (en) * 1980-09-08 1982-03-17 Ab Kranlyft A safety device in hydraulically operated working-platform elevators
EP0117120A2 (en) * 1983-02-16 1984-08-29 Aerial Access Equipment Limited Control mechanism for access equipment
DE3807966A1 (en) * 1988-03-10 1989-09-21 Ruthmann Anton Gmbh & Co Lifting platform with processor control
EP1026120A2 (en) * 1999-02-04 2000-08-09 Snorkel International, Inc. Aerial platform apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19939496C2 (en) * 1999-08-20 2003-02-13 Bison Stematec Maschb Und Huba Automatic range limitation procedure for aerial work platforms

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2408405A1 (en) * 1973-02-21 1974-08-22 Simon Eng Dudley Ltd HYDRAULICALLY OPERATED LIFTING DEVICE
GB2072137A (en) * 1980-02-20 1981-09-30 Cella Spa Limiting the range of lifting apparatus
GB2078197A (en) * 1980-06-04 1982-01-06 Hiab Foco Ab Load limiting device
EP0047726A2 (en) * 1980-09-08 1982-03-17 Ab Kranlyft A safety device in hydraulically operated working-platform elevators
EP0117120A2 (en) * 1983-02-16 1984-08-29 Aerial Access Equipment Limited Control mechanism for access equipment
DE3807966A1 (en) * 1988-03-10 1989-09-21 Ruthmann Anton Gmbh & Co Lifting platform with processor control
EP1026120A2 (en) * 1999-02-04 2000-08-09 Snorkel International, Inc. Aerial platform apparatus

Also Published As

Publication number Publication date
EP1291314A2 (en) 2003-03-12
DE10144501A1 (en) 2003-04-03

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