EP0701963B2 - Motorhubwagen mit teleskopischem Arm - Google Patents

Motorhubwagen mit teleskopischem Arm Download PDF

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Publication number
EP0701963B2
EP0701963B2 EP95402069A EP95402069A EP0701963B2 EP 0701963 B2 EP0701963 B2 EP 0701963B2 EP 95402069 A EP95402069 A EP 95402069A EP 95402069 A EP95402069 A EP 95402069A EP 0701963 B2 EP0701963 B2 EP 0701963B2
Authority
EP
European Patent Office
Prior art keywords
telescopic arm
hydraulic
pivotal shaft
truck
chassis
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.)
Expired - Lifetime
Application number
EP95402069A
Other languages
English (en)
French (fr)
Other versions
EP0701963A1 (de
EP0701963B1 (de
Inventor
Marcel-Claude Braud
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.)
Manitou BF SA
Original Assignee
Manitou BF SA
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26231398&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0701963(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from FR9410953A external-priority patent/FR2724374B1/fr
Priority claimed from FR9500033A external-priority patent/FR2728884A1/fr
Application filed by Manitou BF SA filed Critical Manitou BF SA
Publication of EP0701963A1 publication Critical patent/EP0701963A1/de
Publication of EP0701963B1 publication Critical patent/EP0701963B1/de
Application granted granted Critical
Publication of EP0701963B2 publication Critical patent/EP0701963B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07563—Fork-lift trucks adapted to be carried by transport vehicles
    • 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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/065—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted
    • B66F9/0655—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted with a telescopic boom

Definitions

  • the invention relates to a handling trolley motorized, in particular of the kind capable of being taken on board the rear of a carrier vehicle.
  • carts suitable to be loaded on a carrier vehicle such as a truck, which can be used for loading and unloading the truck and then be attached to the back of it to be so transported.
  • This kind of cart is usually space-saving construction, so as to exceed truck from a short distance, its chassis made so that the front wheels are close to the front end of its loading fork.
  • motorized handling trucks of the aforementioned type generally comprise a chassis having a U-shaped configuration open towards the front, fitted with two front wheels and a steerable rear wheel, so that the lifting means extend thus in their most retracted position between the branches sides of the U-shaped chassis.
  • a general constraint for the design of truck mounted carts is that these carts should be as light as possible so as not to decrease notably the payload of the truck. That's the reason for which the on-board carts are generally free of counterweights and designed to so that the load is placed between the arms of wheels behind the front wheels of the carriage in position transport.
  • Document US 4,826,474 describes a carriage motorized handling unit capable of being taken on board the back of a carrier vehicle, while the document EP 325064 describes a self-propelled forklift which is not suitable for being carried in the rear of a vehicle carrier.
  • the carts embedded of known type are generally carried out in the form of a double-acting vertical mast carriage : this double-effect vertical mast allows handling and transport and also facilitates the loading of the trolley at the rear of the truck using a known technique for example according to document FR 2 298 454.
  • the ancillary devices known for moving the forks at the front of the front wheels in the case of a load in front of the front wheels are of the type with telescopic forks, fork extender, or retractable mast.
  • each telescopic fork has a sliding sleeve on a support guided by slides or rollers and driven by a cylinder synchronized with the deployment of the other fork.
  • this provision leads to high manufacturing costs and significant maintenance costs for reliability relatively weak operation.
  • a deformable scissor structure connects the vertical mast and the apron supporting the forks, thus displacing the forks horizontally forward during deformation of the scissor structure.
  • This system presents on the one hand the disadvantage of increasing the overshoot total carriage at the rear of the truck, a corresponding distance to the length of the deformable structure at scissors in the folded position, which increases the length of the total rolling stock including the vehicle carrier and on-board cart, and presents other share the disadvantage of reducing the payload of the vehicle corresponding carrier of additional weight added by the presence of this deformable structure to scissors.
  • the mast In retractable mast devices, the mast is mounted on a structure that slides inside the carriage chassis.
  • This provision presents the same disadvantages as the extensor system of forks due to the fact that moving towards the front of the assembly comprising the mast and its structure carrier causes a significant shift towards the front of the truck's center of gravity, displacement resulting in a significant reduction in the capacity of load transport and static load stability on the spot.
  • mast carts vertical which is not covered by the present invention, move the load-bearing forks sideways to position in correspondence with the charges to handle.
  • Move side of the entire lifting structure comprising a vertical mast carrying one or more aprons can also be made relative to the supporting frame by appropriate means.
  • the object of the invention is to remedy the drawbacks above from the prior art, by creating a new motorized handling trolley capable of being loaded in the rear of a carrier vehicle in a simple and fast.
  • the invention also aims to apply the principle lateral displacement of the supporting structure trolley with telescopic arm, without significant increase of mechanical organ, while allowing exploitation presenting the same performances as those of prior art.
  • a carriage according to the invention comprises a chassis 1 having a U-shaped configuration opening towards the front, a driving position 2, a powertrain 3 and lifting means 4.
  • a branch 1a of the chassis carries a front wheel 5 while the other branch 1b carried the other front wheel 6.
  • the rear steering wheel 7 is mounted substantially at the middle of the main body of the chassis. Rear wheel steering 7 is controlled by a steering wheel 8 located in the cockpit 2 which also includes all lifting means control members 4.
  • the powertrain 3 is preferably a group comprising an internal combustion engine hydraulic pump, distribution and necessary command being grouped with the group powertrain 3 and controlled directly from the operator station 2.
  • the lifting means 4 comprise a telescopic arm 9 pivotally mounted around a substantially horizontal axis 10 located at the rear of the chassis 1 substantially above the rear wheel director 7.
  • the control and driving position is located on one side of the truck, the powertrain 3 is located on the side opposite the control and driving position, and the telescopic arm 9 in its lowered position and retracted corresponding to the transport of a load goes between operator station 2 and the powertrain 3.
  • the telescopic arm 9 carries at its remote end of the pivot axis 10 a gripping member 11 swiveling around an axis horizontal 12 under the action of an actuating cylinder not shown and of a type known per se.
  • the gripping member 11 is preferably shaped in an apron supporting forks 13a, 13b.
  • the forks 13a, 13b can start from the lowered position and retracted from the telescopic arm 9 corresponding to the transport of a load and shown in solid lines, to move to other horizontal or tilted positions in a direction of digging or a direction of dumping shown in dotted lines.
  • the telescopic arm 9 is extendable under the action an internal cylinder not shown and pivots under the action of a lifting cylinder 14 disposed laterally by relative to the arm and fixed to a bracket fixed to the beam of the telescopic arm 9.
  • the trolley is advantageously fitted according to the invention of a compensation cylinder, able to maintain the forks 13a, 13b horizontal during the transport of the load in the event of movement of the carriage on rough terrain.
  • the lifting cylinder 14 and the compensation cylinder 15 are mounted on the side and on the other side of the beam of the telescopic arm 9, in a position does not interfere with driver visibility when the telescopic arm 9 is in the transport position, fully lowered and retracted.
  • all of the means of lifting 4 is movable transversely from a distance predetermined d so as to allow a precise adjustment of the positioning of the lifting when gripping the load.
  • the lifting means 4 comprising the arm telescopic 9 are movable on the stroke d according to a controlled and preferably controlled movement hydraulically under the action of means of translation arranged in the vicinity of the pivot axis 10.
  • the hydraulic actuation means have at least one hydraulic cylinder, the direction of actuation is substantially parallel to the pivot axis 10.
  • a carriage according to the invention presents a stability diagram without stand corresponding to the lifting of a load of 9000 N at a distance of 1 meter in front of the front wheels: on thus obtains performances equivalent to or better than those of on-board art carts prior.
  • the carts according to the invention have a significantly higher front wheel reach to carts of the prior art.
  • Figure 5 shows a stability diagram with stand further improved compared to the diagram stability without stand in Figure 4 and by compared to the characteristics of the on-board carts of the prior art, in the case where a carriage is fitted according to the invention of retractable stabilizers 16 capable coming to rest on the ground in front of the point of contact P of a front wheel 5 with the ground.
  • the retractable stabilizers 16 able to come in support on the ground in front of the contact points of front wheels 5 with the ground are fixed to the chassis 1 of the trolley according to the invention in a manner known in self for fixing stabilizers on trolleys embedded in the prior art and controlled so similar by an actuating cylinder exerting a substantially vertical thrust.
  • a loading method of a trolley according to the invention and of joining to a carrier vehicle comprises the steps described below.
  • the carriage then rests under the effect of its own weight on the support 21 on which it is applied by the telescopic arm in fully retracted position: the load loading equilibrium position according to the invention on board the rear of the carrier vehicle is perfectly stable and allows transport on long distances.
  • a locking means is provided. complementary to the truck on board carrier vehicle with the support 21 secured to the vehicle carrier.
  • This locking means can for example have two controlled side locks directly by means of a lever arranged in the truck control and control station 2. These side locks can be mechanical locks or hydraulically operated, or alternatively electric.
  • the means of locking is controlled by stopping the carriage motor or the interruption of electrical power to the truck, or interruption of hydraulic power to the truck.
  • the powertrain 3 can advantageously be constituted by an electric group operating on battery in the case of applications prohibiting the use of heat engines.
  • a piston 30 integral with the pivot axis 10 of the telescopic arm is shown diagrammatically by its main beam 9.
  • the piston 30 delimits two chambers 31a and 31b inside a jacket 32.
  • a first drilling 33a practiced substantially coaxial with the pivot axis 10 and a second drilling 33b practiced substantially coaxially with pivot axis 10 allow feeding respectively of each chamber 31a or 31b in fluid hydraulic.
  • the axis 10 is mounted integral with the chassis 1 via of two mounting parts 34a, 34b assembled to chassis 1 by screwing, for example of screws not exceeding 35a, 35b, or by any other means allowing the establishment of the pivot axis 10 and the passage of the piston 30 through an orifice of diameter provided for this effect.
  • the shirt 32 is closed at its ends by two closure rings 38a, 38b carrying seals sealing rings, the rings 38a, 38b being fixed in a manner known per se by screwing or by means equivalent.
  • the structure thus described has a conformation in double rod cylinder, in which the piston 30 is fixed and the shirt 32 moves in the first direction when the chamber 31a is put under hydraulic pressure and in a second direction opposite to said first sense when chamber 31b is pressurized hydraulic.
  • a person skilled in the art can thus determine without difficulty a transverse displacement travel d in function internal dimensions of the jacket 32 and the width of the piston 30 remaining stationary relative to the axis pivot 10 and relative to chassis 1 of the carriage elevator.
  • each support socket 36a or 36b is integral with a bracket 37a or 37b which is itself connected to the main beam of the lifting arm telescopic carriage according to the invention.
  • the invention makes it possible to carry out in a simple manner lateral movement which does not hamper pivoting of the telescopic arm, the means of movement lateral allowing the arm to pivot simultaneously telescopic around the substantially horizontal axis 10.
  • a piston 40 is integral with the pivot axis 10 of the telescopic arm shown diagrammatically by its main beam 9.
  • the piston 40 delimits two chambers 41a and 41b inside a jacket 42.
  • two supply orifices are produced or for discharging hydraulic fluids 43a, 43b directly in the shirt 42.
  • Such tapped holes 43a, 43b of hydraulic fluid supply are type known per se and does not require description more detailed.
  • the axis 10 is mounted integral with the chassis 1 via of two mounting parts 44a, 44b assembled to chassis 1 for example by screwing, screws not exceeding 45a, 45b, or by any other means allowing the establishment of the pivot axis 10 and the passage of the piston 40 through an orifice of diameter provided at this effect.
  • the shirt 42 is closed at its ends by two closure rings 48a, 48b carrying seals suitable sealing, the rings 48a, 48b being fixed in a manner known per se by screwing or by means equivalent.
  • the structure thus described has a conformation in double rod cylinder, in which the piston 40 is fixed and the shirt 42 moves in a first direction when the chamber 41 a is put under hydraulic pressure and in a second direction opposite to said first direction when chamber 41b is pressurized hydraulic.
  • a person skilled in the art can thus determine without difficulty a transverse displacement travel d in function of the internal dimensions of the jacket 42 and of the width of the piston 40 remaining stationary relative to the axis pivot 10 and relative to chassis 1 of the carriage elevator.
  • each support sleeve 46a or 46b is integral with a bracket 47a or 47b which is itself connected to the main beam of the lifting arm telescopic carriage according to the invention.
  • the invention makes it possible to carry out in a simple manner lateral movement which does not hamper pivoting of the telescopic arm, the means of movement lateral allowing the arm to pivot simultaneously telescopic around the substantially horizontal axis 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Handcart (AREA)

Claims (6)

  1. Transportkarren mit einer Antriebseinheit und einem Teleskoparm sowie einem auf einer Mehrzahl von Rädern angeordneten Fahrgestell, wovon wenigstens ein Rad angetrieben ist und das eine Antriebseinheit, eine Kabine und Hubeinrichtungen, die zwischen der Antriebseinheit und der Kabine angeordnet sind, trägt, wobei die Hubeinrichtungen den um eine im wesentlichen waagerechte Achse schwenkbar angeordneten Teleskoparm umfassen, dadurch gekennzeichnet, daß die den Teleskoparm (5) aufweisenden Hubeinrichtungen (4) quer verschiebbar sind, um ein genaues Einstellen der Hubeinrichtungen über eine vorgebbare Strecke (D) zum Aufnehmem einer Last zu erreichen und daß der Teleskoparm (9) in Querrichtung auf seiner Schwenkachse (10) unter der Wirkung von Betätigungsmitteln, die in der Nähe der Schwenkachse (10) angeordnet sind, verschiebbar ist.
  2. Transportkarren nach Anspruch 1, dadurch gekennzeichnet, daß die Betätigungsmittel aus hydraulischen Betätigungsmitteln mit wenigstens einer Hydraulik-Kolben-Zylinder-Einheit bestehen, deren Wirkungsrichtung im wesentlichen parallel zur Schwenkachse (10) des Teleskoparms (9) verläuft.
  3. Transportkarren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Betätigungsmittel im wesentlichen koaxial zur Schwenkachse (10) des Teleskoparms (9) angeordnet sind.
  4. Transportkarren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Betätigungsmittel doppelt wirkend sind.
  5. Transportkarren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Betätigungsmittel aus hydraulischen Mitteln bestehen, die durch im wesentlichen parallel oder koaxial zur Schwenkachse (10) verlaufende Öffnungen beaufschlagt werden.
  6. Transportkarren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Betätigungsmittel aus hydraulischen Mitteln bestehen, die durch im wesentlichen senkrecht zur Schwenkachse (10) verlaufende Öffnungen beaufschlagt werden.
EP95402069A 1994-09-14 1995-09-13 Motorhubwagen mit teleskopischem Arm Expired - Lifetime EP0701963B2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9410953A FR2724374B1 (fr) 1994-09-14 1994-09-14 Chariot de manutention motorise apte a etre embarque a l'arriere d'un vehicule porteur
FR9410953 1994-09-14
FR9500033A FR2728884A1 (fr) 1995-01-04 1995-01-04 Chariot de manutention motorise a bras telescopique
FR9500033 1995-01-04

Publications (3)

Publication Number Publication Date
EP0701963A1 EP0701963A1 (de) 1996-03-20
EP0701963B1 EP0701963B1 (de) 1998-02-04
EP0701963B2 true EP0701963B2 (de) 2004-08-18

Family

ID=26231398

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95402069A Expired - Lifetime EP0701963B2 (de) 1994-09-14 1995-09-13 Motorhubwagen mit teleskopischem Arm

Country Status (4)

Country Link
US (1) US5813821A (de)
EP (1) EP0701963B2 (de)
CA (1) CA2158232C (de)
DE (2) DE69501578T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104444969A (zh) * 2014-11-26 2015-03-25 王马达 一种保障简易叉车随集装箱运行的吊运及固定设备及使用该设备的方法

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2750970A1 (fr) * 1996-07-12 1998-01-16 Fdi Sambron Chariot de manutention comprenant un dispositif de protection du cariste
DE59707518D1 (de) * 1997-11-04 2002-07-18 Schaeff Karl Gmbh & Co Auf Rädern fahrbares querbewegliches Arbeitsgerät
DE69800866T2 (de) * 1998-04-17 2001-11-15 Liftcon Technologies Ltd., Shannon Transportabler Gabelhubwagen mit teleskopischem Hebearm
US6293579B1 (en) 1999-03-08 2001-09-25 Karl Schaeff Gmbh & Co Maschinenfabrik Mobile rig on wheels with transverse motion
FR2837809B1 (fr) 2002-03-29 2004-11-12 Manitou Bf Chariot elevateur a portee variable a trois roues
ES2271763T3 (es) * 2003-11-17 2007-04-16 Moffett Research And Development Limited Carretilla de horquilla elevadora.
US8087868B2 (en) * 2004-01-13 2012-01-03 Moffett Research And Development Limited Forklift truck for mounting on the rear of a carrying vehicle with a fork side shifting attachment
US8308417B1 (en) 2008-12-18 2012-11-13 Joseph Verrochi Method and system for transporting, loading, and unloading various types of goods
EP3152149B1 (de) * 2014-06-05 2018-11-28 Combilift Containerlader/-entlader
GB2543317A (en) * 2015-10-14 2017-04-19 Cargotec Res & Dev Ireland Ltd A Truck mounted forklift
CN110088406A (zh) * 2016-12-16 2019-08-02 克拉克设备公司 具有伸缩式提升臂的装载机
GB2572356B (en) 2018-03-27 2022-09-14 Bamford Excavators Ltd Load-handling vehicle
CN109704237B (zh) * 2019-01-16 2020-09-04 安徽宇锋智能科技有限公司 一种具有智能判定识别感知功能的agv牵引叉车
US12454209B2 (en) * 2021-04-29 2025-10-28 Hol-Mac Corporation Truck carried forklift mounting system

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US4147263A (en) † 1977-01-06 1979-04-03 Lull Engineering Company, Inc. High lift loader with extended transfer
US4396341A (en) † 1981-07-14 1983-08-02 Brouwer Turf Equipment Limited Apparatus for mounting a forklift vehicle on a carrier vehicle
WO1989000972A1 (en) † 1987-07-27 1989-02-09 Merlo S.P.A. Industria Metalmeccanica A lifting truck with a telescopic lifting arm
US4964788A (en) † 1990-03-21 1990-10-23 Tecumseh Products Company Hermetic terminal with terminal pin assemblies having fusible links and motor compressor unit including same
EP0410082A1 (de) † 1989-07-27 1991-01-30 Kidde Industries Inc. Gabelstapler mit einem teleskopischen Hilfsarm, verbunden mit einem teleskopischen Hauptarm
EP0569277A1 (de) † 1992-05-07 1993-11-10 Manitou Bf Elektrischer Hubwagen mit einem teleskopischen Arm
EP0577388A2 (de) † 1992-06-30 1994-01-05 Caterpillar Inc. Erdbewegungsmaschine

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Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1487904A (en) † 1975-01-21 1977-10-05 Kooi Bv Lorry with an attachment for an accompanying fork-lift truck
US4147263A (en) † 1977-01-06 1979-04-03 Lull Engineering Company, Inc. High lift loader with extended transfer
US4396341A (en) † 1981-07-14 1983-08-02 Brouwer Turf Equipment Limited Apparatus for mounting a forklift vehicle on a carrier vehicle
WO1989000972A1 (en) † 1987-07-27 1989-02-09 Merlo S.P.A. Industria Metalmeccanica A lifting truck with a telescopic lifting arm
EP0410082A1 (de) † 1989-07-27 1991-01-30 Kidde Industries Inc. Gabelstapler mit einem teleskopischen Hilfsarm, verbunden mit einem teleskopischen Hauptarm
US4964788A (en) † 1990-03-21 1990-10-23 Tecumseh Products Company Hermetic terminal with terminal pin assemblies having fusible links and motor compressor unit including same
EP0569277A1 (de) † 1992-05-07 1993-11-10 Manitou Bf Elektrischer Hubwagen mit einem teleskopischen Arm
EP0577388A2 (de) † 1992-06-30 1994-01-05 Caterpillar Inc. Erdbewegungsmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104444969A (zh) * 2014-11-26 2015-03-25 王马达 一种保障简易叉车随集装箱运行的吊运及固定设备及使用该设备的方法

Also Published As

Publication number Publication date
US5813821A (en) 1998-09-29
DE69501578T2 (de) 1998-09-17
EP0701963A1 (de) 1996-03-20
EP0701963B1 (de) 1998-02-04
CA2158232C (fr) 2001-08-07
CA2158232A1 (fr) 1996-03-15
DE701963T1 (de) 1996-12-12
DE69501578D1 (de) 1998-03-12
DE69501578T3 (de) 2005-02-03

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