ATE66172T1 - Foerdersystem mit selbstaendigen und selbstangetriebenen wagen. - Google Patents

Foerdersystem mit selbstaendigen und selbstangetriebenen wagen.

Info

Publication number
ATE66172T1
ATE66172T1 AT88420073T AT88420073T ATE66172T1 AT E66172 T1 ATE66172 T1 AT E66172T1 AT 88420073 T AT88420073 T AT 88420073T AT 88420073 T AT88420073 T AT 88420073T AT E66172 T1 ATE66172 T1 AT E66172T1
Authority
AT
Austria
Prior art keywords
independent
self
actuated
switch
conveying system
Prior art date
Application number
AT88420073T
Other languages
English (en)
Inventor
Etienne Maurice Teissler
Bruno Alexis Eugene Marie
Original Assignee
Etienne Maurice Teissler
Bruno Alexis Eugene Marie
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 Etienne Maurice Teissler, Bruno Alexis Eugene Marie filed Critical Etienne Maurice Teissler
Application granted granted Critical
Publication of ATE66172T1 publication Critical patent/ATE66172T1/de

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D65/00Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/02Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
    • B62D65/18Transportation, conveyor or haulage systems specially adapted for motor vehicle or trailer assembly lines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/14Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
    • B23Q7/1426Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices
    • B23Q7/1442Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices using carts carrying work holders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66Arrangements of batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00Type of vehicles
    • B60L2200/26Rail vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00Type of vehicles
    • B60L2200/40Working vehicles
    • B60L2200/44Industrial trucks or floor conveyors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00Operating Modes
    • B60L2260/20Drive modes; Transition between modes
    • B60L2260/28Four wheel or all wheel drive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00Operating Modes
    • B60L2260/20Drive modes; Transition between modes
    • B60L2260/32Auto pilot mode
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/60Electric or hybrid propulsion means for production processes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
  • Non-Mechanical Conveyors (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Control Of Conveyors (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Vending Machines For Individual Products (AREA)
AT88420073T 1987-03-04 1988-03-02 Foerdersystem mit selbstaendigen und selbstangetriebenen wagen. ATE66172T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8703129A FR2611557B1 (fr) 1987-03-04 1987-03-04 Machine de transfert libre a chariots independants et motorises
EP19880420073 EP0285527B1 (de) 1987-03-04 1988-03-02 Fördersystem mit selbständigen und selbstangetriebenen Wagen

Publications (1)

Publication Number Publication Date
ATE66172T1 true ATE66172T1 (de) 1991-08-15

Family

ID=9348716

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88420073T ATE66172T1 (de) 1987-03-04 1988-03-02 Foerdersystem mit selbstaendigen und selbstangetriebenen wagen.

Country Status (8)

Country Link
US (2) US4966080A (de)
EP (1) EP0285527B1 (de)
JP (1) JPS63262004A (de)
AT (1) ATE66172T1 (de)
DE (1) DE3864171D1 (de)
ES (1) ES2026680T3 (de)
FR (1) FR2611557B1 (de)
GR (1) GR3002809T3 (de)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2641511A1 (fr) * 1989-01-12 1990-07-13 Margery Alain Installation automatique de transfert a chariots automoteurs
DE4014695C2 (de) * 1990-05-08 1993-11-25 Bosch Gmbh Robert Werkstücktransportsystem
DE4014697A1 (de) * 1990-05-08 1991-11-14 Bosch Gmbh Robert Einrichtung zum transportieren von werkstuecken
DE4014701A1 (de) * 1990-05-08 1991-11-14 Bosch Gmbh Robert Transportvorrichtung
DE4042380A1 (de) * 1990-05-08 1992-01-30 Bosch Gmbh Robert Transportvorrichtung
DE4042352A1 (de) * 1990-05-08 1991-11-14 Bosch Gmbh Robert Einrichtung zum transportieren von werkstuecken
DE4014696C3 (de) * 1990-05-08 2003-07-17 Bosch Gmbh Robert Anordnung und Verfahren zum Laden eines Akkumulators einer Transportvorrichtung mit eigenem Elektro-Antrieb
DE4042369C1 (en) * 1990-05-08 1992-10-22 Robert Bosch Gmbh, 7000 Stuttgart, De Workpiece transport system with self-propelled carriages - has switch on carriage activated by flap having two positions depending on applied force
DE4014700C2 (de) * 1990-05-08 1993-12-23 Bosch Gmbh Robert Transportvorrichtung mit einem Werkstückträger
DE4014698A1 (de) * 1990-05-08 1991-11-14 Bosch Gmbh Robert Einrichtung zum transportieren von werkstuecken
US5191838A (en) * 1991-06-30 1993-03-09 Pandrol Jackson, Inc. Rail clip applicator and method of applying rail clips
FR2719011B1 (fr) * 1994-04-22 1996-07-12 Pomagalski Sa Installation de transport à câble tracteur et à moteur embarqué.
AT406030B (de) * 1994-11-24 2000-01-25 Wolfgang Dipl Ing D Stubenvoll Autonome, selbstfahrende, spurungebundene, koppelbare werkstückträgerwagen
US5857413A (en) * 1997-01-16 1999-01-12 Ward; Glen N. Method and apparatus for automated powered pallet
ATE209999T1 (de) * 1998-09-12 2001-12-15 Urs Bucher Werkstückträger mit speicherantrieb
EP1197422A3 (de) * 2000-10-18 2002-10-02 VA TECH Transport- und Montagesysteme GmbH & Co Einrichtung und Verfahren zum Positionieren von Transportfahrzeugen in Arbeitsstationen
JP2002348081A (ja) * 2001-05-16 2002-12-04 Inventio Ag 直接駆動されるステップ本体を備えた人用搬送装置及びそのような装置のステップ本体
ITMI20020786A1 (it) * 2002-04-12 2003-10-13 Sandvik Sorting Systems S P A Dispositivo per trasferire energia meccanica a bordo di un treno di carrelli di una macchina smistatrice
ATE337247T1 (de) * 2002-09-23 2006-09-15 Metso Paper Ag Transportanlage für papierrollen, verfahren zu ihrem betrieb sowie fahrzeug
DE20315815U1 (de) * 2003-10-10 2005-02-17 Grob-Werke Burkhart Grob E.K. Vorrichtung zum Stoppen von Transportgut
US8701736B2 (en) 2005-01-18 2014-04-22 Android Industries Llc Inflation work station
CA2591674C (en) * 2005-01-18 2012-09-25 Android Industries Llc A system for transporting and manipulating tires and wheels
US8365794B2 (en) * 2005-01-18 2013-02-05 Android Industries Llc Inflation work station
US7220222B2 (en) * 2005-01-19 2007-05-22 Multi-Shifter Inc. Cart for die transportation
FR2937938A1 (fr) * 2008-11-05 2010-05-07 Sommital Installation de remontee mecanique
KR20130041940A (ko) * 2010-07-09 2013-04-25 포리 오토메이션, 인코포레이티드 무인 반송차 시스템
US9475649B2 (en) 2010-12-15 2016-10-25 Symbolic, LLC Pickface builder for storage and retrieval systems
KR102256081B1 (ko) * 2010-12-15 2021-05-26 심보틱 엘엘씨 저장을 위한 상품 유니트들의 그룹을 만들기 위한 장치
US8397320B2 (en) 2010-12-23 2013-03-19 Guido Capaldi Patient lifting device
US9290057B2 (en) 2011-10-31 2016-03-22 Innovative Technologies, Llc All season safety tire
US9278584B2 (en) 2011-10-31 2016-03-08 Innovative Technologies, Llc All-weather tire
GB2496162A (en) * 2011-11-03 2013-05-08 Vestas Wind Sys As Datum transfer apparatus for work piece
DE102012211455A1 (de) * 2012-07-02 2014-01-02 Wobben Properties Gmbh Handhabungsvorrichtung zum Handhaben einer Rotorblattform zum Fertigen eines Rotorblattes einer Windenergieanlage
US8983740B2 (en) * 2013-03-14 2015-03-17 Arthur Eidelson Driven loadable construct system and method for using the same
CA2901633C (en) * 2013-03-14 2020-12-01 Kuka Systems Corporation North America Flexible conveyance system
US9132873B1 (en) 2013-03-14 2015-09-15 Kuka Systems Corporation North America Flexible conveyance system
TWI594933B (zh) 2013-03-15 2017-08-11 辛波提克有限責任公司 自動化貯藏及取放系統
DK3031334T3 (da) * 2014-12-11 2019-09-16 Buehler Gmbh Transportvogn til et transportsystem for forme
DE102017106731A1 (de) 2017-03-29 2018-10-04 Eisenmann Se Verfahren und Fahrzeug zum Fördern eines elektrisch angetriebenen Kraftfahrzeugs während dessen Montage
DE102017007420A1 (de) * 2017-08-05 2019-02-07 Audi Ag Fertigungsanlage mit fahrerlosen Transportfahrzeugen und verbesserter Werkstückpositionierung in den Fertigungsstationen
CA3039328A1 (en) 2018-04-06 2019-10-06 Sst Systems, Inc. Conveyor system with automated carriers
DE112019006645A5 (de) * 2019-01-11 2021-10-14 Dürr Systems Ag Fördervorrichtung, Bearbeitungsanlage, Verfahren zum Fördern und/oder Bearbeiten von Gegenständen
JP7562399B2 (ja) * 2020-12-11 2024-10-07 長野日本無線株式会社 ワーク生産システムの異物処理装置

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2555854A (en) * 1945-07-21 1951-06-05 Jeffrey Mfg Co Tramming locomotive
CA677258A (en) * 1959-10-01 1963-12-31 Arthur M. Barrett, Jr. Battery charging system for vehicles
FR1456102A (fr) * 1965-09-10 1966-05-20 Sigma Perfectionnements apportés aux appareils électromagnétiques à disques de friction, du genre des embrayages et freins
US3532060A (en) * 1966-12-29 1970-10-06 Alden Self Transit Syst Transportation system and vehicle
US3583328A (en) * 1969-04-18 1971-06-08 Atlas Bolt & Screw Co Alignment of motor-driven machines
US3941202A (en) * 1970-04-30 1976-03-02 Trw Inc. Digital speed control
US3696756A (en) * 1971-02-01 1972-10-10 Teledyne Mid America Corp Car retaining cushioned latch mechanism
US3718097A (en) * 1971-06-30 1973-02-27 Clark Equipment Co Automatic vehicle stop mechanism
US3796327A (en) * 1972-07-14 1974-03-12 R Meyer Manufacturing system
US3845718A (en) * 1973-02-16 1974-11-05 Dexion Comino Int Ltd Transporter systems
LU78204A1 (de) * 1977-09-29 1979-05-25 Bleichert Foerderanlagen Gmbh Einschienenfoerderanlage
US4137984A (en) * 1977-11-03 1979-02-06 Jennings Frederick R Self-guided automatic load transporter
JPS5556403A (en) * 1978-10-20 1980-04-25 Toshiba Corp Automatic charging system for unmanned conveying truck
JPS5911922B2 (ja) * 1980-08-13 1984-03-19 株式会社日立製作所 無人搬送装置
CH631939A5 (en) * 1980-12-31 1982-09-15 Oehler Wyhlen Lagertechnik Owl Method and device for controlling load transfer apparatuses.
US4416202A (en) * 1981-05-15 1983-11-22 Industrial Management Co. Conveyor bench/work station with shunt
JPS58113020A (ja) * 1981-12-28 1983-07-05 Rhythm Watch Co Ltd 移送系の位置決め停止装置
JPS596168A (ja) * 1982-06-30 1984-01-13 株式会社椿本チエイン 搬送装置
JPS59110522A (ja) * 1982-12-17 1984-06-26 Tsubakimoto Chain Co 多目的パレツト
DE3318469A1 (de) * 1983-05-20 1984-11-22 Eisenmann Fördertechnik GmbH, 7031 Holzgerlingen Mehrspuriges schienensystem
US4597709A (en) * 1983-08-01 1986-07-01 Aioi Seiki K.K. Transferring device for dies and the like
JPS61134811A (ja) * 1984-12-05 1986-06-21 Mitsubishi Electric Corp 自動搬送車の制御装置
FR2585008A1 (fr) * 1985-07-17 1987-01-23 Sysmo Sa Dispositif de transfert automatique de supports

Also Published As

Publication number Publication date
ES2026680T3 (es) 1992-05-01
GR3002809T3 (en) 1993-01-25
EP0285527A1 (de) 1988-10-05
FR2611557A1 (fr) 1988-09-09
EP0285527B1 (de) 1991-08-14
FR2611557B1 (fr) 1994-02-25
US4966080A (en) 1990-10-30
DE3864171D1 (de) 1991-09-19
JPS63262004A (ja) 1988-10-28
US5115747A (en) 1992-05-26

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