EP2048106B1 - Straddle carrier with two spreaders arranged next to each other - Google Patents

Straddle carrier with two spreaders arranged next to each other Download PDF

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Publication number
EP2048106B1
EP2048106B1 EP08017473A EP08017473A EP2048106B1 EP 2048106 B1 EP2048106 B1 EP 2048106B1 EP 08017473 A EP08017473 A EP 08017473A EP 08017473 A EP08017473 A EP 08017473A EP 2048106 B1 EP2048106 B1 EP 2048106B1
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EP
European Patent Office
Prior art keywords
straddle carrier
containers
carrier according
spreaders
wheels
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Not-in-force
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EP08017473A
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German (de)
French (fr)
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EP2048106A1 (en
Inventor
Martin Dipl.-Ing. Gredel
Hubert Dipl.-Ing. Foltys
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Noell Mobile Systems GmbH
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Noell Mobile Systems GmbH
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Publication of EP2048106A1 publication Critical patent/EP2048106A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/101—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means for containers
    • B66C1/104—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means for containers for two or more containers side by side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B66C1/663—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof for containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B66C19/007—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries for containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C5/00—Base supporting structures with legs
    • B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods

Definitions

  • the invention relates to a straddle carrier for transporting and stacking freight containers according to the preamble of the first claim.
  • the invention can be used anywhere where multiple containers are deposited by a crane, in harbors close together standing and there is a need to transport these juxtaposed freight containers to stack or set up so that conventional straddle carriers can provide for their onward transport.
  • containers are detected by means of spreaders of gantry cranes at a loading and unloading of ships on the ship or in the port facility, transported and optionally stacked.
  • a gantry crane is for example in DE 197 26 359 A1 described.
  • contrasted containers are then detected by straddle carriers and transported in the port facility on other vehicles, such as road vehicles, loaded or stacked in a suitable manner.
  • a straddle carrier for collecting and transporting containers. These vehicles are suitable to detect stacked containers and therefore have a corresponding height. At two driving carriers at least two, often however also several steerable wheels are arranged on each side. These carriers must be made as narrow as possible, so that the straddle carrier can move into narrow streets between the containers. Therefore, the wheels are often designed so that in them motors, transmissions and other important for locomotion parts are arranged.
  • On the drivers are usually two supports each. On the supports are the hoist, the upper frame, the cab and engines, which are usually internal combustion engines, eg. As diesel engines represent that supply the power for the drive in the wheels.
  • a spreader for collecting and transporting containers on a straddle carrier is in DE 103 55 946.9 described, said spreader is not only laterally displaceable, but also in the longitudinal direction of the container is movable, so that the straddle carrier must not correct incorrect positions by driving movements.
  • Successively arranged spreader with which, for example, two 20-foot containers can be transported, are out WO 01/62657 A1
  • the proposed spreader device is also suitable for detecting and stacking very long containers.
  • tandem spreader systems With these tandem spreader several, preferably two adjacent cargo containers of 40 feet or four 20 feet containers next to and behind each other standing detected and transported from the port facilities to the ship or ship to port facility.
  • WO 2005/090223 A1 describes a spreader system for detecting and transporting containers, with which two containers arranged next to one another can be detected and transported. Both spreaders are firmly connected in the normal state. But it is also possible to separate both spreaders by means of a hydraulic device which is arranged in the upper region, from each other and set up containers at a certain distance. There is also the option of two containers independently from each other to capture and sell. This requires, however, that two independently movable cats are arranged. Furthermore, a hydraulic mechanism is arranged in the upper region of the spreader, with the result that the spreader has a large overall height. This height is not a problem for gantry cranes, but when used on a straddle carrier is a problem, because the height of the straddle carrier increases, which is unfavorable for this particular vehicle, as certain heights should not be exceeded.
  • WO 2006/083230 A1 and WO 03/104132 A1 describe further solutions in which juxtaposed spreader for transporting containers by lifting mechanism are apart and can be moved together. Thus, containers together are detectable and separable from each other and then turned off again. Apart from the fact that such lifting mechanisms consist of a variety of parts and thus have a high weight and are prone to failure, they have the disadvantage that they are located above the spreader so that they are suitable for installation in straddle carriers, their weight and especially their Height are limited, are unsuitable.
  • the solution according to the invention provides a straddle carrier for transporting and stacking freight containers, which consists of two carriers with steerable wheels, supports, the hoist, the upper frame, the cab and motors, wherein the lifting beam at least two independently movable in a horizontal direction spreader are arranged side by side.
  • two portals are based on a right and a left chassis, thus allowing the containers to be transported over.
  • An inserted platform in the head area of the portals provides space for the drive train and the hoist.
  • the device is operated by a driver and is able to grip containers with several attached spreaders, preferably two spreaders, and lift them with a common rope hoist.
  • the spreaders are each mounted in a common lifting beam front and rear and move independently in the lateral direction.
  • the two spreaders can be made flat, so that a small height of the straddle carrier is possible.
  • the mobility to the side is designed so that a departure is possible before settling the container, so that the required tram for a conventional straddle carrier can be opened before settling.
  • parallel containers can also be accommodated and collapsed in a larger area and, for loading ship-to-shore cranes, moved from a pre-stacking area to the location in which the freight containers are detected by the spreader system of the portal lifting crane.
  • the suspension of the spreader in the walking beam is constructive designed so that containers can be taken with a different height, with differences can be up to one foot.
  • the drive system can be designed both electrically and hydraulically.
  • the existing Seilhubwerk is suitable for driving both receiving means, the spreader represent.
  • the spreaders are hung on a common walking beam in front and behind. Due to the gantry design preferably two adjacent containers or four containers, two of which are directly behind each other, can be crossed and transported.
  • the container receiving means, preferably spreaders, are not only independently displaceable in the lifting beam, but also designed so that they are horizontally rotatable.
  • suspensions of the container receiving means are designed so flexible that different container heights and position inaccuracies are compensated.
  • Such solutions are known from conventional spreaders on straddle carriers.
  • the FIG. 1 shows a straddle carrier for transporting and stacking of freight containers, consisting of the two chassis 2, on which springs 6 and four wheels 7 are arranged, all four are steerable, wherein at least two wheels 7 are driven and at least two wheels 7 on each Side are braked.
  • the two chassis 2 support 8 lead to the portal 1, to the cab 9 and the stage 3 are arranged.
  • a diesel engine or an alternative, also independent energy source corresponding power is arranged, which supplies the electrical energy for driving the wheels 7.
  • two spreaders 5 are arranged, which are independently movable in a horizontal direction.
  • the straddle carrier travels over two side-by-side containers 11 set apart from a ship-to-shore crane with a tandem spreader system, picking them up with their spreaders 5, lifting them and moving them to a designated location. Before settling, conveniently during the process, the two spreaders 5 on the walking beam 4, so that the container 11 have a distance from each other and form an alley that can be run over by conventional straddle carriers.
  • FIG. 2 Such a position is in FIG. 2 shown.
  • the proposed solution has the advantage that directly spaced without adjacent container 11 can be gripped, transported and separated from each other or spaced container can be grabbed with an alley, transported and moved together, so that a further transport by Mehrspreadersysteme is readily possible , It can handle different sizes and transported containers.
  • the lifting height allows overrun of standing on the ground containers with battered and lifted containers 16.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Ship Loading And Unloading (AREA)
  • Control And Safety Of Cranes (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

Portal forklift truck comprises spreaders (5) arranged next to each other on a rocker bar (4) and moving independently of each other in the horizontal direction. Preferred Features: The truck has a moving gear (2) with individually sprung wheels (7). The drive system is electrical or hydraulic. The spreaders are hung in front of the rocker bar and behind the rocker bar.

Description

Die Erfindung betrifft einen Portalhubstapler zum Transportieren und Stapeln von Frachtcontainern entsprechend dem Oberbegriff des ersten Patentanspruches.The invention relates to a straddle carrier for transporting and stacking freight containers according to the preamble of the first claim.

Die Erfindung ist überall dort einsetzbar, wo mehrere Container von einem Kran, in Umschlaghäfen dicht nebeneinander stehend abgesetzt werden und die Notwendigkeit besteht, diese nebeneinander stehenden Frachtcontainer zu transportieren, zu stapeln oder so aufzustellen, daß herkömmliche Portalhubstapler für ihren Weitertransport sorgen können.The invention can be used anywhere where multiple containers are deposited by a crane, in harbors close together standing and there is a need to transport these juxtaposed freight containers to stack or set up so that conventional straddle carriers can provide for their onward transport.

Auf Umschlagplätzen, insbesondere in Hafenanlagen, ist es üblich, daß Container mittels Spreader von Portalkranen bei einem Ent- und Beladen von Schiffen auf dem Schiff oder in der Hafenanlage erfaßt, transportiert und gegebenenfalls gestapelt werden.
Ein derartiger Portalkran ist beispielsweise in DE 197 26 359 A1 beschrieben.At terminals, especially in port facilities, it is common that containers are detected by means of spreaders of gantry cranes at a loading and unloading of ships on the ship or in the port facility, transported and optionally stacked.
Such a gantry crane is for example in DE 197 26 359 A1 described.

In der Hafenanlage abgesetzte Container werden dann von Portalhubwagen erfaßt und in der Hafenanlage weiter transportiert, auf andere Fahrzeuge, beispielsweise Straßenfahrzeuge, verladen oder aber auf geeignete Weise gestapelt.In the port facility contrasted containers are then detected by straddle carriers and transported in the port facility on other vehicles, such as road vehicles, loaded or stacked in a suitable manner.

In DE 32 221 49 A1 ist ein Portalhubstapler zum Erfassen und Transportieren von Container beschrieben. Diese Fahrzeuge sind geeignet, übereinander stehende Container zu erfassen und weisen daher eine entsprechende Höhe auf. An zwei Fahrträgern sind auf jeder Seite mindestens zwei, häufig aber auch mehrere lenkbare Räder angeordnet. Diese Fahrträger müssen möglichst schmal ausgeführt sein, damit der Portalhubstapler in enge Gassen zwischen den Containern verfahren kann. Daher werden häufig die Räder so ausgeführt, daß in ihnen Motoren, Getriebe und andere für die Fortbewegung wichtigen Teile angeordnet sind. An den Fahrträgern befinden sich in der Regel jeweils zwei Stützen. Auf den Stützen befinden sich das Hubwerk, der Oberrahmen, das Fahrhaus und Motoren, die in der Regel Verbrennungsmotoren, z. B. Dieselmotoren, darstellen, die den Strom für den Antrieb in den Rädern liefern.In DE 32 221 49 A1 is described a straddle carrier for collecting and transporting containers. These vehicles are suitable to detect stacked containers and therefore have a corresponding height. At two driving carriers at least two, often however also several steerable wheels are arranged on each side. These carriers must be made as narrow as possible, so that the straddle carrier can move into narrow streets between the containers. Therefore, the wheels are often designed so that in them motors, transmissions and other important for locomotion parts are arranged. On the drivers are usually two supports each. On the supports are the hoist, the upper frame, the cab and engines, which are usually internal combustion engines, eg. As diesel engines represent that supply the power for the drive in the wheels.

Ein Spreader zum Erfassen und Transportieren von Containern an einem Portalhubwagen ist in DE 103 55 946.9 beschrieben, wobei dieser Spreader nicht nur seitlich verschiebbar ist, sondern auch in Längsrichtung zum Container bewegbar ist, so daß der Portalhubstapler Fehlpositionen nicht durch Fahrbewegungen korrigieren muß.A spreader for collecting and transporting containers on a straddle carrier is in DE 103 55 946.9 described, said spreader is not only laterally displaceable, but also in the longitudinal direction of the container is movable, so that the straddle carrier must not correct incorrect positions by driving movements.

Hintereinander angeordnete Spreader, mit denen beispielsweise zwei 20-Fuß-Container transportierbar sind, sind aus WO 01/62657 A1 bekannt, wobei die vorgeschlagene Spreadervorrichtung auch geeignet ist, sehr lange Container zu erfassen und zu stapeln.Successively arranged spreader with which, for example, two 20-foot containers can be transported, are out WO 01/62657 A1 The proposed spreader device is also suitable for detecting and stacking very long containers.

Um die Transportkapazität in den Hafenanlagen zu erhöhen, wurden Portalhubstapler entwickelt, die einen Spreader aufweisen, mit dessen Hilfe zwei hintereinander stehende Container aufgenommen und transportiert werden können. Solche Portalkrane wurden beispielsweise in EP 0 960 067 B1 beschrieben.In order to increase the transport capacity in the port facilities, straddle carriers were developed, which have a spreader, with the help of two consecutive containers can be picked up and transported. Such gantry cranes were for example in EP 0 960 067 B1 described.

Um die Transportkapazität in den Hafenanlagen zu erhöhen, wurden Portalhubstapler entwickelt, die einen längeren Spreader aufweisen, so daß mehrere Container hintereinander stehend transportiert werden können. Auch derartige Entwicklungen sind aus der Literatur bekannt. Jüngste Entwicklungen, um noch höhere Umschlagraten von Container abzuarbeiten, sehen vor, daß Portalhub- oder Ship-to Shore-Krane mit sogenannten Tandem-Spreadersystemen ausgerüstet sind. Mit diesen Tandem-Spreadersystemen werden mehrere, vorzugsweise zwei nebeneinander stehende Frachtcontainer von 40 Fuß oder vier 20 Fuß Container neben- und hintereinander stehend erfaßt und von der Hafenanlagen zum Schiff oder vom Schiff zu Hafenanlage transportiert.In order to increase the transport capacity in the port facilities, straddle carriers have been developed, which have a longer spreader, so that several containers can be transported standing behind each other. Such developments are also known from the literature. Recent developments to handle even higher handling rates of containers, provide that portal lift or ship-to-shore cranes are equipped with so-called tandem spreader systems. With these tandem spreader several, preferably two adjacent cargo containers of 40 feet or four 20 feet containers next to and behind each other standing detected and transported from the port facilities to the ship or ship to port facility.

Beim Transport vom Hafen zum Schiff setzt das voraus, daß mehrere Container nebeneinander stehend abgestellt sind, damit sie vom Tandem-Spreadersystem des Ship-to-Shore-Kranes erfaßt werden können. Nachdem gleichzeitigen Transport von mehreren Containern vom Schiff auf die Hafenfläche setzt das voraus, daß ein Weitertransport der abgesetzten Container schnell und zuverlässig erfolgen kann, da sonst der zu langsame Transport im Hafen das Entladetempo des Portalkranes begrenzt. Die bekannten Portalhubstapler zum Transportieren und Stapeln von Frachtcontainern sind allerdings in ihrer derzeitigen Bauweise nicht in der Lage, zwei nebeneinander stehende Container zu transportieren, da sich zwischen diesen keine Gasse befindet, die vom Fahrträger durchfahren werden kann. Weiterhin sind ihre Hubwerke nicht geeignet, zwei nebeneinander stehende Container voneinander zu trennen.When transporting from the port to the ship this requires that several containers are parked next to each other so that they can be detected by the tandem spreader system of the ship-to-shore crane. After simultaneous transport of several containers from the ship to the port area, this requires that a further transport of the dropped container can be done quickly and reliably, otherwise the too slow transport in the port limits the unloading speed of the gantry crane. However, the known straddle carriers for transporting and stacking freight containers are not able to transport two containers standing side by side in their present design, since there is no lane between them which can be passed through by the carrier. Furthermore, their hoists are not suitable to separate two adjacent containers from each other.

WO 2005/090223 A1 beschreibt ein Spreadersystem zum Erfassen und Transportieren von Containern, mit dem zwei nebeneinander angeordnete Container erfaßt und transportiert werden können. Beide Spreader sind im Normalzustand fest miteinander verbunden. Es besteht aber auch die Möglichkeit, beide Spreader mittels einer Hydraulikeinrichtung, die im oberen Bereich angeordnet ist, voneinander zu trennen und Container in einem gewissen Abstand aufzusetzen. Weiterhin besteht auch die Möglichkeit, zwei Container unabhängig voneinander zu erfassen und abzusetzen. Das setzt allerdings voraus, daß zwei unabhängig voneinander verfahrbare Katzen angeordnet sind. Weiterhin ist ein Hydraulikmechanismus im oberen Bereich des Spreaders angeordnet, was dazu führt, daß der Spreader eine große Bauhöhe aufweist. Diese Bauhöhe ist für Portalkrane unproblematisch, stellt aber bei einem Einsatz an einem Portalhubstapler ein Problem dar, denn die Höhe des Portalhubstaplers nimmt zu, was gerade für dieses Fahrzeug ungünstig ist, da bestimmte Bauhöhen nicht überschritten werden sollen. WO 2005/090223 A1 describes a spreader system for detecting and transporting containers, with which two containers arranged next to one another can be detected and transported. Both spreaders are firmly connected in the normal state. But it is also possible to separate both spreaders by means of a hydraulic device which is arranged in the upper region, from each other and set up containers at a certain distance. There is also the option of two containers independently from each other to capture and sell. This requires, however, that two independently movable cats are arranged. Furthermore, a hydraulic mechanism is arranged in the upper region of the spreader, with the result that the spreader has a large overall height. This height is not a problem for gantry cranes, but when used on a straddle carrier is a problem, because the height of the straddle carrier increases, which is unfavorable for this particular vehicle, as certain heights should not be exceeded.

WO 2006/083230 A1 und WO 03/104132 A1 beschreiben weitere Lösungen, bei denen nebeneinander angeordnete Spreader zum Transport von Containern mittels Hebemechanismus auseinander- und zusammenfahrbar sind. Damit sind zusammenstehende Container erfaßbar und voneinander trennbar und dann wieder abstellbar. Abgesehen davon, daß derartige Hebemechanismen aus einer Vielzahl von Teilen bestehen und dadurch ein hohes Gewicht aufweisen und störanfällig sind, haben sie den Nachteil, daß sie oberhalb des Spreaders angeordnet sind, so daß sie für den Einbau in Portalhubstaplern, deren Gewicht und vor allem deren Bauhöhe begrenzt sind, ungeeignet sind. WO 2006/083230 A1 and WO 03/104132 A1 describe further solutions in which juxtaposed spreader for transporting containers by lifting mechanism are apart and can be moved together. Thus, containers together are detectable and separable from each other and then turned off again. Apart from the fact that such lifting mechanisms consist of a variety of parts and thus have a high weight and are prone to failure, they have the disadvantage that they are located above the spreader so that they are suitable for installation in straddle carriers, their weight and especially their Height are limited, are unsuitable.

Ein Überfahren von zwei übereinander stehenden Containern ist aufgrund der Tatsache nicht möglich, daß herkömmliche Portalhubstapler auf Containerbreite ausgelegt sind. Mit dem Entstehen von Tandem-Spreadersystemen an Ship-to-Shore-Kranen und deren Einsatz beim Umschlag von Frachtcontainern ist daher die Notwendigkeit entstanden, eine platzsparende Möglichkeit zu schaffen, Frachtcontainer so zu transportieren und abzustellen, daß sie dicht nebeneinander stehend von Spreadersystemen erfaßt und zuverlässig transportiert und so voneinander getrennt werden können, daß sie mit herkömmlichen Portalhubstaplern verfahr- und transportierbar sind.A crossing of two stacked containers is not possible due to the fact that conventional straddle carriers are designed for container width. With the emergence of tandem spreader systems on ship-to-shore cranes and their use in the handling of cargo containers, therefore, the need has arisen to create a space-saving way to transport cargo containers and turn off so that they are closely spaced from spreader systems detected and reliably transported and can be separated from each other so that they can be moved and transported with conventional straddle carriers.

Diese Aufgabe wird durch einen Portalhubstapler nach den Merkmalen des ersten Patentanspruches gelöst.This object is achieved by a straddle carrier truck according to the features of the first claim.

Vorteilhafte Ausgestaltungen sind in den Unteransprüchen genannt.Advantageous embodiments are mentioned in the subclaims.

Die erfindungsgemäß Lösung sieht einen Portalhubstapler zum Transportieren und Stapeln von Frachtcontainern vor, der aus zwei Fahrträgern mit lenkbaren Rädern, Stützen, dem Hubwerk, dem Oberrahmen, dem Fahrhaus und Motoren besteht, wobei am Hubbalken mindestens zwei unabhängig voneinander in waagerechter Richtung verfahrbare Spreader nebeneinander angeordnet sind. Bei diesem Fahrzeug stützen sich zwei Portale auf ein rechtes und ein linkes Fahrwerk und ermöglichen so das Überfahren der zu transportierenden Containern. Eine eingesetzte Bühne im Kopfbereich der Portale bietet Platz für den Antriebsstrang und das Hubwerk. Das Gerät wird von einem Fahrzeugführer bedient und ist in der Lage, Container mit mehreren angehängten Spreadern, vorzugsweise zwei Spreadern, zu greifen und mit einem gemeinsamen Seilhubwerk zu heben. Die Spreader sind in je einem gemeinsamen Hubbalken vorn und hinten gelagert und unabhängig voneinander in Seitenrichtung zu bewegen. Bei dieser Bauweise können die beiden Spreader flach ausgeführt sein, so daß eine geringe Höhe des Portalhubstaplers möglich ist. Die Beweglichkeit zur Seite ist derart ausgelegt, daß vor dem Absetzen der Container ein Auseinanderfahren möglich ist, so daß die erforderliche Fahrgasse für einen herkömmlichen Straddle Carrier vor dem Absetzen geöffnet werden kann. Entsprechend können auch in größerem Abstrand parallel stehende Container aufgenommen und zusammengefahren und zum Beschicken von Ship-to-Shore-Kranen von einem Vorstapelbereich zu dem Ort verfahren werden, in dem die Frachtcontainer vom Spreadersystem des Portalhubkranes erfaßt werden. Die Aufhängung der Spreader in den Hubbalken ist konstruktiv so ausgeführt, daß Container mit einer unterschiedlichen Höhe aufgenommen werden können, wobei Unterschiede bis einem Fuß betragen können.The solution according to the invention provides a straddle carrier for transporting and stacking freight containers, which consists of two carriers with steerable wheels, supports, the hoist, the upper frame, the cab and motors, wherein the lifting beam at least two independently movable in a horizontal direction spreader are arranged side by side. In this vehicle, two portals are based on a right and a left chassis, thus allowing the containers to be transported over. An inserted platform in the head area of the portals provides space for the drive train and the hoist. The device is operated by a driver and is able to grip containers with several attached spreaders, preferably two spreaders, and lift them with a common rope hoist. The spreaders are each mounted in a common lifting beam front and rear and move independently in the lateral direction. In this construction, the two spreaders can be made flat, so that a small height of the straddle carrier is possible. The mobility to the side is designed so that a departure is possible before settling the container, so that the required tram for a conventional straddle carrier can be opened before settling. Correspondingly, parallel containers can also be accommodated and collapsed in a larger area and, for loading ship-to-shore cranes, moved from a pre-stacking area to the location in which the freight containers are detected by the spreader system of the portal lifting crane. The suspension of the spreader in the walking beam is constructive designed so that containers can be taken with a different height, with differences can be up to one foot.

Vorteilhaft ist es, am Fahrwerk acht gelenkte und einzeln gefederte Räder anzuordnen, wovon mindestens vier Räder angetrieben und mindestens vier Räder gebremst sind. Weiterhin ist es vorteilhaft, als Energiequelle einen einzelnen Dieselmotor zu installieren. Das Antriebssystem kann sowohl elektrisch als auch hydraulisch ausgeführt sein. Das vorhandene Seilhubwerk ist geeignet zum Antrieb beider Aufnahmemittel, die Spreader darstellen. Die Spreader sind an einem gemeinsamen Hubbalken vorn und hinten aufgehängt. Durch die Portalbauweise sind vorzugsweise zwei nebeneinander stehende Container bzw. vier Container, von denen je zwei direkt hintereinander stehen, überfahr- und transportierbar. Die Containeraufnahmemittel, vorzugsweise Spreader, sind nicht nur unabhängig voneinander in den Hubbalken verschiebbar, sondern auch so ausgeführt, daß sie horizontal drehbar sind.It is advantageous to arrange eight steered and individually sprung wheels on the chassis, of which at least four wheels are driven and at least four wheels are braked. Furthermore, it is advantageous to install as an energy source a single diesel engine. The drive system can be designed both electrically and hydraulically. The existing Seilhubwerk is suitable for driving both receiving means, the spreader represent. The spreaders are hung on a common walking beam in front and behind. Due to the gantry design preferably two adjacent containers or four containers, two of which are directly behind each other, can be crossed and transported. The container receiving means, preferably spreaders, are not only independently displaceable in the lifting beam, but also designed so that they are horizontally rotatable.

Vorteilhaft ist es, daß die Aufhängungen der Containeraufnahmemittel derart flexibel ausgeführt sind, daß unterschiedliche Containerhöhen sowie Positionsungenauigkeiten ausgeglichen werden. Derartige Lösungen sind von herkömmlichen Spreadern an Portalhubstaplern bekannt.It is advantageous that the suspensions of the container receiving means are designed so flexible that different container heights and position inaccuracies are compensated. Such solutions are known from conventional spreaders on straddle carriers.

Im Folgenden wir die Erfindung an zwei Figuren und einem Ausführungsbeispiel näher erläutert. Die Figuren zeigen:

Figur 1:
Portalhubstapler mit zwei nebeneinander angeordneten Containern, die angehoben wurden.
Figur 2:
Portalhubstapler mit zwei nebeneinander angeordneten Containern, wobei die Spreader in Richtung auf die Fahrwerke verfahren wurden.
In the following we will explain the invention in two figures and an embodiment in more detail. The figures show:
FIG. 1:
Portal stacker with two side-by-side containers lifted.
FIG. 2:
Portal stacker with two containers arranged side by side, with the spreaders moved in the direction of the bogies.

Die Figur 1 zeigt einen Portalhubstapler zum Transportieren und Stapeln von Frachtcontainern, bestehend aus den zwei Fahrwerken 2, an denen Federn 6 und jeweils vier Räder 7 angeordnet sind, die alle vier lenkbar sind, wobei jeweils mindestens zwei Räder 7 angetrieben sind und mindestens zwei Räder 7 auf jeder Seite gebremst sind. Von den beiden Fahrwerken 2 führen Stützen 8 zum Portal 1, an dem Fahrerhaus 9 und die Bühne 3 angeordnet sind. Auf der Bühne 3 ist ein Dieselmotor oder eine alternative, ebenfalls unabhängige Energiequelle entsprechender Leistung angeordnet, der die elektrische Energie für den Antrieb der Räder 7 liefert. An den Hubbalken 4 sind jeweils zwei Spreader 5 angeordnet, die unabhängig voneinander in waagerechter Richtung verfahrbar sind. Der Portalhubstapler fährt über zwei von einem Ship-to-Shore-Kran mit Tandem-Spreadersystem abgesetzten, nebeneinander angeordneten Containern 11 und nimmt diese mit seinen Spreadern 5 auf, hebt diese an und verfährt sie an einem dafür vorgesehenen Ort. Vor dem Absetzen, günstigerweise während des Verfahrens, verfahren die beiden Spreader 5 am Hubbalken 4, so daß die Container 11 einen Abstand zueinander haben und eine Gasse bilden, die von herkömmlichen Portalhubstaplern überfahren werden können.The FIG. 1 shows a straddle carrier for transporting and stacking of freight containers, consisting of the two chassis 2, on which springs 6 and four wheels 7 are arranged, all four are steerable, wherein at least two wheels 7 are driven and at least two wheels 7 on each Side are braked. Of the two chassis 2 support 8 lead to the portal 1, to the cab 9 and the stage 3 are arranged. On the stage 3, a diesel engine or an alternative, also independent energy source corresponding power is arranged, which supplies the electrical energy for driving the wheels 7. At the lifting beam 4 two spreaders 5 are arranged, which are independently movable in a horizontal direction. The straddle carrier travels over two side-by-side containers 11 set apart from a ship-to-shore crane with a tandem spreader system, picking them up with their spreaders 5, lifting them and moving them to a designated location. Before settling, conveniently during the process, the two spreaders 5 on the walking beam 4, so that the container 11 have a distance from each other and form an alley that can be run over by conventional straddle carriers.

Eine derartige Stellung ist in Figur 2 gezeigt.Such a position is in FIG. 2 shown.

Die vorgeschlagene Lösung hat den Vorteil, daß direkt ohne Abstand nebeneinander abgesetzte Container 11 gegriffen, transportiert und voneinander getrennt werden können oder aber im Abstand stehende Container mit einer Gasse gegriffen, transportiert und zusammengefahren werden können, so daß ein Weitertransport durch Mehrspreadersysteme ohne weiteres möglich ist. Es können unterschiedlich hohe Container gegriffen und transportiert werden. Die Hubhöhe ermöglicht ein Überfahren von am Boden stehenden Containern mit angeschlagenen und abgehobenen Containern 16.The proposed solution has the advantage that directly spaced without adjacent container 11 can be gripped, transported and separated from each other or spaced container can be grabbed with an alley, transported and moved together, so that a further transport by Mehrspreadersysteme is readily possible , It can handle different sizes and transported containers. The lifting height allows overrun of standing on the ground containers with battered and lifted containers 16.

Liste der verwendeten BezugszeichenList of reference numbers used

11
Portalportal
22
Fahrwerklanding gear
33
Bühnestage
44
Hubbalkenwalking beam
55
Spreaderspreader
66
Federnfeathers
77
Räderbikes
88th
StützenSupport
99
Fahrerhausdriver's cab
1010
Dieselmotordiesel engine
1111
ContainerContainer

Claims (12)

  1. Straddle carrier for transporting and stacking freight containers (16), comprising two chassis beams (2) having steerable wheels (7), supports (8), the lifting beam, the overhead frame, the driver's cab (9) and engines (10), characterized in that at least two spreaders (5) that are movable in a horizontal direction independent of each other are disposed in a side-by-side relationship on the lifting beam (4).
  2. Straddle carrier according to claim 1, characterized in that the chassis beam (2) has steerable wheels (7).
  3. Straddle carrier according to claims 1 and 2, characterized in that the wheels (7) are individually spring-mounted.
  4. Straddle carrier according to claims 1 to 3, characterized in that at least four wheels (7) are driven wheels (7).
  5. Straddle carrier according to claims 1 to 4, characterized in that at least four of wheels (7) are configured to be braked.
  6. Straddle carrier according to claims 1 to 5, characterized in that as an energy source a diesel engine (10) or an alternative, also independent energy source of corresponding power is arranged.
  7. Straddle carrier according to claims 1 to 6, characterized in that the drive system is an electrical drive system.
  8. Straddle carrier according to claims 1 to 7, characterized in that the drive system is a hydraulic drive system.
  9. Straddle carrier according to one of claims 1 to 8, characterized in that a common rope hoist is used for both spreaders (5).
  10. Straddle carrier according to one of claims 1 to 9, characterized in that the spreaders (5) are suspended on one of the lifting beams (4) at the front and at the back of the spreaders (5).
  11. Straddle carrier according to one of claims 1 to 10, characterized in that two containers (11) standing directly side by side and two containers (11) standing directly behind each other may be straddled and transported.
  12. Straddle carrier according to one of claims 1 to 11, characterized in that the spreaders (5) are horizontally rotatable.
EP08017473A 2007-10-11 2008-10-06 Straddle carrier with two spreaders arranged next to each other Not-in-force EP2048106B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007049012A DE102007049012A1 (en) 2007-10-11 2007-10-11 Portal forklift with two side-by-side spreaders

Publications (2)

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EP2048106A1 EP2048106A1 (en) 2009-04-15
EP2048106B1 true EP2048106B1 (en) 2011-05-11

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US (1) US7731041B2 (en)
EP (1) EP2048106B1 (en)
KR (1) KR101107745B1 (en)
CN (1) CN101428745A (en)
AT (1) ATE508976T1 (en)
DE (1) DE102007049012A1 (en)

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US7731041B2 (en) 2010-06-08
DE102007049012A1 (en) 2009-04-16
KR101107745B1 (en) 2012-01-20
CN101428745A (en) 2009-05-13
ATE508976T1 (en) 2011-05-15
EP2048106A1 (en) 2009-04-15
KR20090037360A (en) 2009-04-15
US20090097935A1 (en) 2009-04-16

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