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WO1999003715A1 - Industrial truck - Google Patents

Industrial truck Download PDF

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Publication number
WO1999003715A1
WO1999003715A1 PCT/EP1998/004396 EP9804396W WO9903715A1 WO 1999003715 A1 WO1999003715 A1 WO 1999003715A1 EP 9804396 W EP9804396 W EP 9804396W WO 9903715 A1 WO9903715 A1 WO 9903715A1
Authority
WO
WIPO (PCT)
Prior art keywords
industrial truck
steering
driver
seat
gas spring
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.)
Ceased
Application number
PCT/EP1998/004396
Other languages
German (de)
French (fr)
Inventor
Stephan Ballhausen
Caspar Tügel
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.)
STILL GmbH
Original Assignee
STILL 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 STILL GmbH filed Critical STILL GmbH
Publication of WO1999003715A1 publication Critical patent/WO1999003715A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D1/00Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16Steering columns
    • B62D1/18Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/187Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustment; with tilt and axial adjustment
    • B62D1/189Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustment; with tilt and axial adjustment the entire column being tiltable as a unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D1/00Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16Steering columns
    • B62D1/18Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/184Mechanisms for locking columns at selected positions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices 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
    • B66F9/075Constructional features or details
    • B66F9/07568Steering arrangements

Definitions

  • the invention relates to an industrial truck, in particular a forklift, with at least one pivotable fastening element for a steering device, in particular with at least one steering column.
  • pivotable fastening elements for steering devices have already been proposed in which, after a locking device has been released, the fastening element is automatically swiveled forward or pivoted by means of a spring. It is also known to fix the swivel angle of the fastening element with the aid of a mechanical clamp or a detent.
  • the present invention is based on the object of specifying an industrial truck, in particular a forklift, with at least one pivotable fastening element for a steering device, in which the ease of use is improved compared to the known constructions for pivoting the fastening elements.
  • the production costs of the construction for pivoting such fasteners and thus the production costs for an industrial truck are to be reduced.
  • pivotable fastening element is connected directly or indirectly to the industrial truck, preferably to its frame, via a damping and / or spring force-generating element.
  • the pivotable fastener which, for. B. can be pivoted away from the working position into a position that makes it easier for the driver to dismount, and this pivoting movement can be automatically damped. If the driver has returned to his working position in the industrial truck, he can use the pivotable fastening element pull continuously to the body and lock in any position without z. B. a clamping of the pivotable fastener must be made.
  • the damping and / or spring force-generating element is advantageously designed as at least one gas spring, preferably as a lockable gas spring.
  • Gas springs or lockable gas springs are mature and inexpensive large-scale components, so that the production costs can be reduced by using such components.
  • the gas spring has means for force limitation.
  • This configuration further increases the ease of use and safety for the driver or the operating personnel.
  • gas springs have usually been locked by means of an integrated valve, which closes due to the acting gas pressure.
  • a strong support of the driver on the pivotable fastener such as. B. is the case in a head-on collision
  • the gas in the gas spring is very strongly compressed on one side.
  • the seat valve is opened because the area under pressure on the valve seat increases in comparison to the valve stem area, and energy is reduced in this way.
  • the maximum tension blocking force depends on the gas spring pressure and thus on the extension force of the gas spring.
  • the tensile blocking force thus corresponds to the mechanical limitation of the force limitation on the pivotable fastening element.
  • the invention is further developed, that the industrial truck has means for releasing the locking of the damping and / or spring force generating element.
  • These means for releasing the lock can, for. B. with an operable by foot and / or hand control device or with an actuatable via the driver's seat or the seat hood device in operative connection.
  • FIG. 1 shows a pivotable fastening element designed as a pivotable steering column 5.
  • a seat cover 2 On the frame 1 of the truck is a seat cover 2, on which usually a driver's seat and under the z. B. in the case of an electric truck, the batteries are provided.
  • the steering column 4, on which the steering wheel 3 is fastened, can be pivoted about an axis of rotation 5.
  • the pivotable steering column 4 is connected to the industrial truck, preferably to its frame, via a gas spring 6, preferably a lockable gas spring. represented by the attachment 7.
  • the industrial truck according to the invention does not require any further catches or locking elements. This results in a comparatively space-saving arrangement.
  • a pedal 8 is shown, via which the locking of the lockable gas spring 6 can be released.
  • the seat cover 2 it would also be conceivable to equip the seat cover 2 with a device which, for. B. whenever the driver rises from the seat cover 2 or when the seat cover 2 has to be opened for maintenance purposes - often the steering column in the driver position hinders the opening of the cover - which releases the gas spring 6 and thus an automatic pivoting of the Steering column 4 causes.
  • FIG. 2 shows the driver's seat of a vehicle with a pivotable fastening element for a steering device, consisting of a steering wheel 3 'and a steering valve 9, wherein the steering wheel 3' and steering valve 9 form a structural unit.
  • a steering device consisting of a steering wheel 3 'and a steering valve 9, wherein the steering wheel 3' and steering valve 9 form a structural unit.
  • the assembly of steering wheel 3 'and steering valve 9 is fastened to a bracket 4' which is pivotable relative to the driver's seat 2 about an axis 5 '.
  • the axis 5 ' extends in the transverse direction of the driver's seat.
  • the hydraulic lines connected to the steering valve 9 - which are not shown in the figure for the sake of clarity - are arranged in or on the bracket 4 '.
  • the hydraulic lines can be designed as hoses or pipes.
  • a rotary movement of the steering wheel 3 'or a torque acting on the steering wheel 3' is converted into a hydraulic signal by means of a steering valve.
  • This signal of the steering valve is fed via a hydraulic line to a hydraulic steering cylinder which is connected to the steerable wheels of the vehicle and generates a steering movement or a steering force.
  • Steering valves of the type mentioned generally consist of a pump and a servo valve.
  • a steering shaft is often located between the steering wheel 3 'and the steering valve for transmitting a rotary movement, the steering valve being arranged outside a driver's cabin of the vehicle.
  • the steering shaft is usually located in front of a driver's seat and partially within the footwell of a driver sitting on the driver's seat. The footwell is thus reduced by the steering shaft, so that the driver's legroom is restricted.
  • the steering wheel 3 'and steering valve 9 form a structural unit, which leads to an enlargement of the foot space and also makes it easier for the driver to get on and out of the driver's seat.
  • the pivotable bracket 4 ' is connected to the industrial truck, preferably to its frame, via a gas spring 6', which is preferably designed as a lockable gas spring; represented by the attachment 7 '.

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

Abstract

The invention relates to an industrial truck, in particular a fork lift truck, with at least one pivoted fastening element for a steering device, in particular with at least one steering column (4). In accordance with the invention, the pivoted fastening element is directly or indirectly connected to the industrial truck, preferably to the chassis, via an element which damps pivoting or generates elastic force. The damping and/or elasticity-generating element can be configured as a gas-filled spring device (6), preferably as an arresting gas-filled spring device. The gas-filled spring device (6) preferably has means for force limitation.

Description

Beschreibung description

FlurförderzeuQIndustrial TrucksQ

Die Erfindung betrifft ein Flurförderzeug, insbesondere einen Gabelstapler, mit wenigsten einem schwenkbaren Befestigungselement für eine Lenkvorrichtung, insbesondere mit wenigsten einer Lenksäule.The invention relates to an industrial truck, in particular a forklift, with at least one pivotable fastening element for a steering device, in particular with at least one steering column.

Um dem Bedienpersonal das Verlassen bzw. Absteigen von einem Flurförderzeug zu erleichtern, sind bereits schwenkbare Befestigungselemente für Lenkvorrichtungen vorgeschlagen worden, bei denen nach dem Lösen einer Arretierung ein selbsttätiges Vor- bzw. Verschwenken des Befestigungselementes mittels einer Feder erfolgt. Ferner ist bekannt, den Schwenkwinkel des Befestigungselementes mit Hilfe einer mechanischen Klemmung oder einer Rastung zu fixieren.In order to make it easier for the operating personnel to leave or dismount an industrial truck, pivotable fastening elements for steering devices have already been proposed in which, after a locking device has been released, the fastening element is automatically swiveled forward or pivoted by means of a spring. It is also known to fix the swivel angle of the fastening element with the aid of a mechanical clamp or a detent.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Flurförderzeug, insbesondere einen Gabelstapler, mit wenigstens einem schwenkbaren Befestigungselement für eine Lenkvorrichtung anzugeben, bei dem der Bedienkomfort gegenüber den bekannten Konstruktionen zum Verschwenken der Befestigungselemente verbessert ist. Zudem sollen die Produktionskosten der Konstruktion zum Verschwenken derartiger Befestigungselemente und damit die Produktionskosten für ein Flurförderzeug gesenkt werden.The present invention is based on the object of specifying an industrial truck, in particular a forklift, with at least one pivotable fastening element for a steering device, in which the ease of use is improved compared to the known constructions for pivoting the fastening elements. In addition, the production costs of the construction for pivoting such fasteners and thus the production costs for an industrial truck are to be reduced.

Diese Aufgabe wird bei dem erfindungsgemäßen Flurförderzeug, dadurch gelöst, daß das schwenkbare Befestigungselement über ein seine Schwenkbewegung dämpfendes und/oder federkrafterzeugendes Element mit dem Flurförderzeug, vorzugsweise mit dessen Rahmen, direkt oder indirekt verbunden ist.This object is achieved in the industrial truck according to the invention in that the pivotable fastening element is connected directly or indirectly to the industrial truck, preferably to its frame, via a damping and / or spring force-generating element.

Gemäß der Erfindung kann das schwenkbare Befestigungselement, das z. B. durch den Fahrer aus der Arbeitsposition in eine Position, die ein erleichtertes Absteigen für den Fahrer ermöglicht, weggeschwenkt werden, wobei diese Schwenkbewegung automatisch gedämpft erfolgen kann. Hat der Fahrer in dem Flurförderzeug wieder seine Arbeitsposition eingenommen, kann er das schwenkbare Befestigungselement stufenlos an den Körper heranziehen und in jeder beliebigen Position arretieren, ohne daß z. B. eine Klemmung des schwenkbaren Befestigungselementes vorgenommen werden muß.According to the invention, the pivotable fastener, which, for. B. can be pivoted away from the working position into a position that makes it easier for the driver to dismount, and this pivoting movement can be automatically damped. If the driver has returned to his working position in the industrial truck, he can use the pivotable fastening element pull continuously to the body and lock in any position without z. B. a clamping of the pivotable fastener must be made.

In vorteilhafter Weise ist das dämpfende und/oder federkrafterzeugende Element als wenigstens eine Gasfeder, vorzugsweise als arretierbare Gasfeder, ausgebildet. Gasfedern bzw. arretierbare Gasfedern sind ausgereifte und kostengünstige Großserienbauteile, so daß die Produktionskosten durch die Verwendung derartiger Bauteile gesenkt werden können.The damping and / or spring force-generating element is advantageously designed as at least one gas spring, preferably as a lockable gas spring. Gas springs or lockable gas springs are mature and inexpensive large-scale components, so that the production costs can be reduced by using such components.

Gemäß einer weiteren Ausgestaltung des erfindungsgemäßen Flurförderzeuges weist die Gasfeder Mittel zur Kraftbegrenzung auf. Mittels dieser Ausgestaltung wird der Bedienkomfort sowie die Sicherheit für den Fahrer bzw. das Bedienpersonal weiter erhöht. Die Arretierung von Gasfedern erfolgt bisher üblicherweise mittels eines integrierten Ventiles, wobei dieses durch den einwirkenden Gasdruck schließt. Bei einem starken Abstützen des Fahrers an dem schwenkbaren Befestigungselement, wie dies z. B. bei einer Frontalkollision der Fall ist, wird das Gas in der Gasfeder einseitig sehr stark komprimiert. Dadurch wird das Sitzventil geöffnet, weil sich die druckbeaufschlagte Fläche am Ventilsitz im Vergleich zu der Ventilschaftfläche vergrößert, und auf diese Weise Energie abgebaut. Die maximale Zugblockierkraft ist abhängig vom Gasfederdruck und damit von der Ausschubkraft der Gasfeder. Die Zugblockierkraft entspricht also über die mechanische Übersetzung der Kraftbegrenzung an dem schwenkbaren Befestigungselement.According to a further embodiment of the industrial truck according to the invention, the gas spring has means for force limitation. This configuration further increases the ease of use and safety for the driver or the operating personnel. Up to now, gas springs have usually been locked by means of an integrated valve, which closes due to the acting gas pressure. With a strong support of the driver on the pivotable fastener, such as. B. is the case in a head-on collision, the gas in the gas spring is very strongly compressed on one side. As a result, the seat valve is opened because the area under pressure on the valve seat increases in comparison to the valve stem area, and energy is reduced in this way. The maximum tension blocking force depends on the gas spring pressure and thus on the extension force of the gas spring. The tensile blocking force thus corresponds to the mechanical limitation of the force limitation on the pivotable fastening element.

Die Erfindung weiterbildend wird vorgeschlagen, daß das Flurförderzeug Mittel zum Lösen der Arretierung des dämpfenden und/oder federkrafterzeugenden Elements aufweist. Diese Mittel zum Lösen der Arretierung können z. B. mit einer per Fuß- und/oder Handbedienung betätigbaren Vorrichtung oder mit einer über den Fahrersitz oder die Sitzhaube betätigbaren Vorrichtung in Wirkverbindung stehen.The invention is further developed, that the industrial truck has means for releasing the locking of the damping and / or spring force generating element. These means for releasing the lock can, for. B. with an operable by foot and / or hand control device or with an actuatable via the driver's seat or the seat hood device in operative connection.

Die Erfindung sowie weitere vorteilhafte Ausgestaltungen derselben seien anhand der Figuren 1 und 2, die lediglich prinzipielle Darstellungen der Erfindung zeigen, näher erläutert. Figur 1 zeigt hierbei ein als schwenkbare Lenksäule 5 ausgebildetes schwenkbares Befestigungselement. Auf dem Rahmen 1 des Flurförderzeuges ist eine Sitzhaube 2, auf der im Regelfall ein Fahrersitz und unter der z. B. im Falle eines Elektro- Flurförderzeuges die Batterien angeordnet sind, vorgesehen. Die Lenksäule 4, auf der das Lenkrad 3 befestigt ist, ist um eine Drehachse 5 schwenkbar. Über eine Gasfeder 6, vorzugsweise eine arretierbare Gasfeder, ist die schwenkbare Lenksäule 4 mit dem Flurförderzeug, vorzugsweise mit dessen Rahmen, verbunden; dargestellt durch die Befestigung 7.The invention and further advantageous embodiments thereof are explained in more detail with reference to FIGS. 1 and 2, which only show basic representations of the invention. FIG. 1 shows a pivotable fastening element designed as a pivotable steering column 5. On the frame 1 of the truck is a seat cover 2, on which usually a driver's seat and under the z. B. in the case of an electric truck, the batteries are provided. The steering column 4, on which the steering wheel 3 is fastened, can be pivoted about an axis of rotation 5. The pivotable steering column 4 is connected to the industrial truck, preferably to its frame, via a gas spring 6, preferably a lockable gas spring. represented by the attachment 7.

Das erfindungsgemäße Flurförderzeug benötigt außer der Gasfeder 6, die sehr schlank baut, keine weiteren Rasten oder Arretierelemente. Daraus resultiert eine vergleichsweise raumsparende Anordnung.Apart from the gas spring 6, which is very slim, the industrial truck according to the invention does not require any further catches or locking elements. This results in a comparatively space-saving arrangement.

Wie bereits erwähnt, können die Mittel zum Lösen der Arretierung z. B. mit einer per Fuß- und/oder Handbedienung betätigbaren Vorrichtung oder mit einer über den Fahrersitz oder die Sitzhaube betätigbaren Vorrichtung in Wirkverbindung stehen. In der Figur ist ein Pedal 8, über das die Arretierung der arretierbaren Gasfeder 6 gelöst werden kann, dargestellt. Denkbar wäre jedoch auch, die Sitzhaube 2 mit einer Vorrichtung auszustatten, die z. B. immer dann, wenn sich der Fahrer von der Sitzhaube 2 erhebt oder wenn die Sitzhaube 2 für Wartungszwecke geöffnet werden muß - oftmals behindert die Lenksäule in der Fahrerposition das Öffnen der Haube -, die Arretierung der Gasfeder 6 löst und damit ein automatisches Verschwenken der Lenksäule 4 bewirkt.As already mentioned, the means for releasing the locking z. B. with an operable by foot and / or hand control device or with an actuatable via the driver's seat or the seat hood device in operative connection. In the figure, a pedal 8 is shown, via which the locking of the lockable gas spring 6 can be released. However, it would also be conceivable to equip the seat cover 2 with a device which, for. B. whenever the driver rises from the seat cover 2 or when the seat cover 2 has to be opened for maintenance purposes - often the steering column in the driver position hinders the opening of the cover - which releases the gas spring 6 and thus an automatic pivoting of the Steering column 4 causes.

Selbstverständlich ist ein Lösen der Arretierung der Gasfeder 6 auch mittels z. B. eines Seilzuges möglich.Of course, releasing the locking of the gas spring 6 is also by means of z. B. a cable pull possible.

Figur 2 zeigt den Fahrerplatz eines Fahrzeugs mit einem schwenkbaren Befestigungselement für eine Lenkvorrichtung, bestehend aus einem Lenkrad 3' sowie einem Lenkventil 9, wobei Lenkrad 3' und Lenkventil 9 eine Baueinheit bilden. Bei einer solchen Anordnung ist keine Lenkweile erforderlich, da sich das Lenkventil direkt unterhalb des Lenkrads befindet, und die beiden Bauteile unmittelbar miteinander verbunden werden können. Die Baueinheit aus Lenkrad 3' und Lenkventil 9 ist an einem Bügel 4' befestigt, der relativ zu dem Fahrersitz 2 um eine Achse 5' schwenkbar ist. Die Achse 5' erstreckt sich in Querrichtung des Fahrerplatzes. In oder an dem Bügel 4' sind die an dem Lenkventil 9 angeschlossen Hydraulikleitungen - die der Übersichtlichkeit halber in der Figur nicht dargestellt sind - angeordnet. Die Hydraulikleitungen können als Schlauchoder Rohrleitungen ausgebildet sein.Figure 2 shows the driver's seat of a vehicle with a pivotable fastening element for a steering device, consisting of a steering wheel 3 'and a steering valve 9, wherein the steering wheel 3' and steering valve 9 form a structural unit. With such an arrangement, no steering shaft is required since the steering valve is located directly below the steering wheel and the two components can be connected directly to one another. The assembly of steering wheel 3 'and steering valve 9 is fastened to a bracket 4' which is pivotable relative to the driver's seat 2 about an axis 5 '. The axis 5 'extends in the transverse direction of the driver's seat. The hydraulic lines connected to the steering valve 9 - which are not shown in the figure for the sake of clarity - are arranged in or on the bracket 4 '. The hydraulic lines can be designed as hoses or pipes.

Bei Lenkbetätigungsvornchtungen der genannten Art werden eine Drehbewegung des Lenkrads 3' oder ein auf das Lenkrad 3' wirkendes Drehmoment mittels eines Lenkventils in ein hydraulisches Signal umgesetzt. Dieses Signal des Lenkventils wird über eine Hydraulikleitung einem hydraulischen Lenkungszylinder zugeführt, der mit den lenkbaren Rädern des Fahrzeugs verbunden ist und eine Lenkbewegung bzw. eine Lenkkraft erzeugt. Lenkventile der genannten Art bestehen in der Regel aus einer Pumpe und einem Servoventil.In steering actuation devices of the type mentioned, a rotary movement of the steering wheel 3 'or a torque acting on the steering wheel 3' is converted into a hydraulic signal by means of a steering valve. This signal of the steering valve is fed via a hydraulic line to a hydraulic steering cylinder which is connected to the steerable wheels of the vehicle and generates a steering movement or a steering force. Steering valves of the type mentioned generally consist of a pump and a servo valve.

Oftmals befindet sich zwischen dem Lenkrad 3' und dem Lenkventil zur Übertragung einer Drehbewegung eine Lenkwelle, wobei das Lenkventil außerhalb einer Fahrerkabine des Fahrzeugs angeordnet ist. Die Lenkwelle befindet sich dabei in der Regel vor einem Fahrersitz und teilweise innerhalb des Fußraums eines auf dem Fahrersitz sitzenden Fahrers. Der Fußraum wird somit durch die Lenkwelle verkleinert, so daß die Beinfreiheit des Fahrers eingeschränkt wird. Bei der in der Figur 2 dargestellten Lenkbetätigungsvornchtungen bilden Lenkrad 3' und Lenkventil 9 jedoch eine Baueinheit, was zu einer Vergrößerung des Fußraums führt und dem Fahrer zudem das Aufsteigen auf den sowie das Verlassen des Fahrerplatzes erleichtert.A steering shaft is often located between the steering wheel 3 'and the steering valve for transmitting a rotary movement, the steering valve being arranged outside a driver's cabin of the vehicle. The steering shaft is usually located in front of a driver's seat and partially within the footwell of a driver sitting on the driver's seat. The footwell is thus reduced by the steering shaft, so that the driver's legroom is restricted. In the steering actuation device shown in FIG. 2, however, the steering wheel 3 'and steering valve 9 form a structural unit, which leads to an enlargement of the foot space and also makes it easier for the driver to get on and out of the driver's seat.

Über eine Gasfeder 6', die vorzugsweise als arretierbare Gasfeder ausgebildet ist, ist der schwenkbare Bügel 4' mit dem Flurförderzeug, vorzugsweise mit dessen Rahmen, verbunden; dargestellt durch die Befestigung 7'.The pivotable bracket 4 'is connected to the industrial truck, preferably to its frame, via a gas spring 6', which is preferably designed as a lockable gas spring; represented by the attachment 7 '.

Nachfolgend seien nochmals die Vorteile der Erfindung aufgelistet:The advantages of the invention are listed again below:

Kostensenkung durch den Einsatz ausgereifter und kostengünstiger Großserienbauteile Mehr Sicherheit durch bewährtes GroßserienbauteilCost reduction through the use of sophisticated and cost-effective large series components Proven high-volume component for more safety

Erhöhter Komfort durch einfache und stufenlose VerstellmöglichkeitIncreased comfort through simple and stepless adjustment

Erhöhter Komfort sowie Sicherheit durch DämpfungIncreased comfort and safety through cushioning

Raumsparende AnordnungSpace-saving arrangement

Zusätzliche Sicherheit durch Kraftbegrenzung Additional safety through force limitation

Claims

Patentansprüche claims 1. Flurförderzeug, insbesondere Gabelstapler, mit wenigsten einem schwenkbaren Befestigungselement für eine Lenkvorrichtung, insbesondere mit wenigsten einer Lenksäule (4), dadurch gekennzeichnet, daß das schwenkbare Befestigungselement über ein seine Schwenkbewegung dämpfendes und/oder federkrafterzeugendes Element mit dem Flurförderzeug, vorzugsweise mit dessen Rahmen, direkt oder indirekt verbunden ist.1. Industrial truck, in particular forklift truck, with at least one pivotable fastening element for a steering device, in particular with at least one steering column (4), characterized in that the pivotable fastening element via a pivoting damping and / or spring force generating element with the industrial truck, preferably with its frame , is directly or indirectly connected. 2. Flurförderzeug nach Anspruch 1 , dadurch gekennzeichnet, daß das dämpfende und/oder federkrafterzeugende Element als wenigstens eine Gasfeder (6), vorzugsweise als arretierbare Gasfeder, ausgebildet ist.2. Industrial truck according to claim 1, characterized in that the damping and / or spring force generating element is designed as at least one gas spring (6), preferably as a lockable gas spring. 3. Flurförderzeug nach Anspruch 2, dadurch gekennzeichnet, daß die Gasfeder (6) Mittel zur Kraftbegrenzung aufweist.3. Industrial truck according to claim 2, characterized in that the gas spring (6) has means for limiting the force. Flurförderzeug nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß das Flurförderzeug Mittel zum Lösen der Arretierung des dämpfenden und/oder federkrafterzeugenden Elements aufweist.Industrial truck according to one of the preceding claims, characterized in that the industrial truck has means for releasing the locking of the damping and / or spring force generating element. 5. Flurförderzeug nach Anspruch 4, dadurch gekennzeichnet, daß die Mittel zum Lösen der Arretierung mit einer per Fuß- und/oder Handbedienung betätigbaren Vorrichtung (8) in Wirkverbindung stehen.5. Industrial truck according to claim 4, characterized in that the means for releasing the lock with an operable by foot and / or hand control device (8) are in operative connection. Flurförderzeug nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Mittel zum Lösen der Arretierung mit einer über den Fahrersitz oder die Sitzhaube (2) betätigbaren Vorrichtung in Wirkverbindung stehen. Industrial truck according to Claim 4 or 5, characterized in that the means for releasing the locking device are operatively connected to a device which can be actuated via the driver's seat or the seat hood (2).
PCT/EP1998/004396 1997-07-16 1998-07-15 Industrial truck Ceased WO1999003715A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19730508.3 1997-07-16
DE1997130508 DE19730508A1 (en) 1997-07-16 1997-07-16 Industrial truck

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WO1999003715A1 true WO1999003715A1 (en) 1999-01-28

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WO (1) WO1999003715A1 (en)

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CN110406587A (en) * 2019-09-04 2019-11-05 三一重机有限公司 A kind of steering column incidence regulating mechanism and steering wheel

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CH664331A5 (en) * 1983-08-16 1988-02-29 Orenstein & Koppel Ag Adjustable vehicle steering column
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