EP1043268B1 - Lift truck, in particular fork lift truck equipped with a positioning device - Google Patents
Lift truck, in particular fork lift truck equipped with a positioning device Download PDFInfo
- Publication number
- EP1043268B1 EP1043268B1 EP99810268A EP99810268A EP1043268B1 EP 1043268 B1 EP1043268 B1 EP 1043268B1 EP 99810268 A EP99810268 A EP 99810268A EP 99810268 A EP99810268 A EP 99810268A EP 1043268 B1 EP1043268 B1 EP 1043268B1
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- European Patent Office
- Prior art keywords
- mast
- lift truck
- lift
- positioning means
- vehicle according
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- 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.)
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Classifications
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- 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
- B66F9/12—Platforms; Forks; Other load supporting or gripping members
- B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
- B66F9/142—Movements of forks either individually or relative to each other
- B66F9/143—Movements of forks relative to each other - symmetric
Definitions
- the invention relates to a novel embodiment of a forklift vehicle according to the characteristics of the preamble of independent claim 1.
- a truck is already known from US-A-1,878,995.
- Forklift vehicles in particular forklift trucks with driver's seat, are in various designs known and in use. The function requires that when picking up and taking off the load the forklift truck with the Load forward headed towards the respective loading position must become. The entire device for moving or Raising the load considerably hinders the driver's view. From this known problem, the state of the Technique made a number of improvements to the design the lifting device on the forklift.
- the lifting device generally consists of one in front of the driver's cab attached mast, often as a frame-shaped double mast designed on which by rails or a telescopic device the fork can be lifted vertically.
- the carrying fork consists of a end face formed by support struts and the vertical arranged horizontal support arms or tines to whom the load rests.
- the carrying fork usually has an L shape; the vertical end face is used for attachment to the lifting device of the mast.
- EP 283 637 and DE 296 06 840 describe technical solutions that aim in the driver's line of sight to reduce the cross-sectional profile of the fork.
- EP 283 637 is described for lifting the load integrate the necessary hydraulics into the lifting rod.
- the fork becomes conventional, i.e. with the face upright and transverse to the longitudinal axis of the vehicle on the mast attached.
- the mast is at the front of the vehicle, in front of the wheel axle.
- DE 296 06 840 shows a single one in the middle of the vehicle front attached mast of small width. His inside Profile serves as a guide rail for a sled and the carrying fork attached to it with the end face.
- EP 572 846 proposes a modified arrangement of the lifting device in front. Instead of a conventional fork with a fix a complicated lifting device attached to the forklift Push fork supported over several axes is provided, which enables the load to be loaded laterally. there the actual mast is laterally at the front in the fork integrated and thus removed from the driver's field of vision.
- the handling is disadvantageous due to the additional Joint axes. Through the additional lever arms the permissible load is reduced. The lifting height is low.
- WO 88/0656 describes a construction principle that the lifting mast moved to the rear of the forklift.
- the telescopic lifting device is designed with conventional an upright mast, but behind the vehicle cabin and is mounted in front of the rear axle of the vehicle.
- extendable, horizontal cross beams connect this lifting device with the actual fork, which is in front of the cab Front of the vehicle is stored.
- the attachment of the carrying fork on the lifting device is done by the vertically arranged Face of the fork.
- the visual impairment of the Driver through the lifting system is eliminated, but not the Visual impairment due to elements attached to the actual Carrying fork are attached.
- the system also allows during no need to leave the driver's cab during use.
- Advantageous is the arrangement of the mast in the rear of the vehicle, because so an improved center of gravity of the vehicle is reached when the load is picked up.
- this task is performed according to the characteristics of Claim 1 solved.
- the positioning device inclined towards the horizontal and the mast behind the Front axle relocated.
- As a positioning device in the sense the entire unit of Hydraulic elements, guide and support elements, which the Connect the arms of the carrying device to the mast.
- the outer limitation of the positioning device has Cross section about the shape of a rectangle.
- the long side is arranged transversely to the direction of travel of the stacking vehicle. According to the invention, this results in a flat surface to the horizontal inclined positioning unit.
- the Tilt angle a is at least 30 °.
- Advantage of this arrangement is that the positioning device is less Dimensionally blocked the view to the front. According to the invention this allows the mast to be behind the front axle Reset center of vehicle.
- the one behind the front axle arranged mast and the positioning device act not as a load in front of the front axle, which reduces the center of gravity is improved.
- the weight spanis can be 25% of the Lifting capacity.
- the stacking vehicle can either be shorter build or the counterweight may be lighter. This improves the maneuverability of the vehicle e.g. in tight Warehouses, as well as acceleration and fuel consumption.
- the driver's field of vision is crucial enlarged, especially in the direction of travel forward.
- a positioning device in the sense of this invention includes mechanical and hydraulic devices as they for tine adjustment devices, sideshift, barrel and bale clamps, Clamping forks or a combination of such Functions are necessary.
- a sideshift allows that lateral displacement of the support device relative to the vehicle. This allows the support arms to be precisely positioned, without having to change the vehicle position again.
- a Adjustment device for individual arms of the carrying device relative to each other allows exact adjustment of the carrying device to the load, e.g. to the bottom guide of pallets. Both positioning devices mentioned are in practice expedient and common, but require a large number additional components. These are the elements primarily around telescopic and support struts as well as Hydraulic cylinder.
- Positioning device The entirety of these elements is in arranged in a rectangular cross section and forms the Positioning device.
- the individual components can apart from the necessary connections, exposed, contained in a frame or with screens be boarded up. Only the arrangement according to the invention Positioning device allows the visual impairment by the latter, especially when loading a truck to minimize half height.
- the driver has so when loading at half height clear view of the fork arms while moving the positioning device above outside of the viewing direction located.
- This feature of the invention will also by any other arrangement that deviates from the vertical this connecting element, provided it is vertical Relocation of the positioning device in relation to the Arms of the carrying device causes.
- a positioning device arranged in this way is advantageous arranged above the front axle, so that neither by the Expansion in the direction of the longitudinal axis of the vehicle still due to their own weight, the leverage of the carrying device to reinforce the absorbed load. The burden will be picked up by the front wheels.
- the inventive Arrangement of the positioning device is improved both the forward view and the center of gravity of the Vehicle.
- a carrying device in the sense of this invention comprises one or multiple arms with one side on the positioning device are attached and, arranged in parallel, point forward in the longitudinal direction of the vehicle.
- the carrying device can also be used as a barrel or bale clamp, supporting mandrel or as a similar gripping or support device, as is usually the case with forklifts used, be trained.
- a positioning device in the sense of this invention is, based on the arrangement according to the invention on the vehicle, a significantly larger length extension (in the direction of the Vehicle longitudinal axis) as height.
- a significantly larger length extension in the direction of the Vehicle longitudinal axis
- Figure 1 shows the side view of a forklift vehicle F with the features of the invention. It is a four-wheeler Version with two front and parallel arranged Wheels 2.
- An operating unit 1 for a driver H is in the middle M of the forklift vehicle F.
- a vertical arranged mast 3, the guide of a fork 5th serves, is placed behind the front axis of rotation 9a.
- a conventional hydraulic lifting unit 4 is preferably in Integrated mast. Attached to the mast 3 or the lifting unit 4, there is a carrying fork 5 which over to the front the end face 10 protrudes. The carrying fork 5 is either in shown in raised position I and in lowest position II.
- a positioning aid 6 includes all Elements necessary for the hydraulic adjustment of the support arms 5a are necessary, namely hydraulic cylinders 8 and adjustable Support struts 7.
- the horizontal portion of the support fork 5, the support arms 5a is through a vertical element 5b with the Positioning aid 6 connected.
- FIG. 2 shows a top view of the forklift vehicle F. according to Fig. 1.
- the mast 3 is laterally offset from the longitudinal axis A of the vehicle in the front area arranged, namely between control unit 1 and front axle 9a. This will improve the center of gravity.
- the mast 3 is out of the driver's field of vision H removed.
- the forklift vehicle F via at least one mast 3.
- the control unit 1 of the driver H also relocated be arranged from the longitudinal axis L (in the case of a two-masted Execution should be stored approximately in the middle).
- the order of the elements mast 3 and control unit 1 of Driver H for a single mast version is again in 3, front view of the vehicle F according to FIGS. 1 and 2, shown.
- a main advantage of the invention is that clear view, which the driver H through the flat arrangement of the Positioning aid 6 is granted to the support arms 5a.
- the horizontal support arms 5a are the Carrying fork 5 through a vertical element 5b from the positioning device 6 set down.
- Figure 4 shows the positioning device 6 in a detail and in a slightly enlarged representation with the carrying fork 5 in half profile.
- the invention can also be used with a smaller one Realize relationships of v: b. Most of all ratios from 1: 3 to 1: 6 have also proven successful.
- the angle of inclination ⁇ between the longitudinal axis of the positioning device A and the vertical is opposite for better illustration the previous figures 1 to 3 changed.
- the embodiment shown is that of a clamp fork.
- the invention is of course not limited to embodiment described in the figures, the only exemplary Has character.
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- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
Die Erfindung betrifft eine neuartige Ausführung eines Stapler-Fahrzeugs
gemäss den Merkmalen des Oberbegriffs des
unabhängigen Patentanspruchs 1. Ein derartiges Staplerfahrzeug ist
bereits aus der US-A-1,878,995 bekannt.The invention relates to a novel embodiment of a forklift vehicle
according to the characteristics of the preamble of
Der industrielle Umschlag von Gütern, insbesondere Palettengütern, erfordert geeignete Maschinen zur Bewegung und zum Einlagern dieser Güter. Stapler-Fahrzeuge, insbesondere Gapelstapler mit Fahrersitz, sind in verschiedensten Ausführungsformen bekannt und gebräuchlich. Die Funktion bedingt, dass beim Auf- und Abnehmen der Last der Gapelstapler mit der Last voran frontal auf die jeweilige Ladeposition hingesteuert werden muss. Die gesamte Vorrichtung zum Bewegen bzw. Anheben der Last behindert dabei die Sicht des Fahrers erheblich. Aus diesem bekanntem Problem heraus kennt der Stand der Technik eine Reihe von Verbesserungen, die auf die Konstruktion der Hubvorrichtung am Gabelstapler abzielen. Die Hubvorrichtung besteht im allgemeinen aus einem vor der Fahrerkabine angebrachten Mast, oft als rahmenförmiger Doppelmast ausgelegt, an dem durch Schienen oder eine Teleskopvorrichtung die Traggabel vertikal angehoben werden kann. Weiterhin ist an dem Mast die dafür erforderliche Hydraulik oder eine Kettenmechanik angebracht. Die Traggabel besteht aus einer durch Stützstreben gebildeten Stirnfläche und den dazu vertikal angeordneten, horizontalen Tragarmen oder Zinken, auf denen die Last aufliegt. Die Traggabel hat so meist L-Form; die vertikale Stirnfläche dient der Befestigung an der Hubvorrichtung des Hubmastes.The industrial handling of goods, especially pallet goods, requires suitable machines for movement and Storage of these goods. Forklift vehicles, in particular forklift trucks with driver's seat, are in various designs known and in use. The function requires that when picking up and taking off the load the forklift truck with the Load forward headed towards the respective loading position must become. The entire device for moving or Raising the load considerably hinders the driver's view. From this known problem, the state of the Technique made a number of improvements to the design the lifting device on the forklift. The lifting device generally consists of one in front of the driver's cab attached mast, often as a frame-shaped double mast designed on which by rails or a telescopic device the fork can be lifted vertically. Farther is the required hydraulic system or a Chain mechanics attached. The carrying fork consists of a end face formed by support struts and the vertical arranged horizontal support arms or tines to whom the load rests. The carrying fork usually has an L shape; the vertical end face is used for attachment to the lifting device of the mast.
EP 283 637 und DE 296 06 840 beschreiben technische Lösungen die darauf abzielen, das in der Blickrichtung des Fahrers liegende Querschnittprofil der Traggabel zu verringern. In EP 283 637 wird beschrieben, die für das Heben der Last erforderliche Hydraulik in die Hubstange zu integrieren. Die Traggabel wird dabei konventionell, d.h. mit der Stirnfläche aufrecht und quer zur Längsachse des Fahrzeugs am Hubmast befestigt. Der Hubmast ist an der Vorderseite des Fahrzeugs, vor der Radachse, angebracht.EP 283 637 and DE 296 06 840 describe technical solutions that aim in the driver's line of sight to reduce the cross-sectional profile of the fork. In EP 283 637 is described for lifting the load integrate the necessary hydraulics into the lifting rod. The The fork becomes conventional, i.e. with the face upright and transverse to the longitudinal axis of the vehicle on the mast attached. The mast is at the front of the vehicle, in front of the wheel axle.
DE 296 06 840 zeigt einen einzelnen, mittig an der Fahrzeugfront angebrachten Hubmast geringer Breite. Sein inneres Profil dient als Führungsschiene für einen Schlitten und die daran mit der Stirnfläche befestigte Traggabel.DE 296 06 840 shows a single one in the middle of the vehicle front attached mast of small width. His inside Profile serves as a guide rail for a sled and the carrying fork attached to it with the end face.
EP 572 846 schlägt eine modifizierte Anordnung der Hubvorrichtung vor. Statt einer konventionellen Gabel mit einer fix am Gabelstapler befestigten Hubvorrichtung wird eine komplizierte, über mehrere Achsen getragene Schubgabel vorgesehen, die zum seitlichen Aufladen der Last befähigt. Dabei wird der eigentliche Hubmast seitlich vorne in die Traggabel integriert und somit aus dem Gesichtsfeld des Fahrers entfernt. Nachteilig ist dabei die Handhabung durch die zusätzlichen Gelenkachsen. Durch die zusätzlichen Hebelarme wird die zulässige Traglast reduziert. Die Hubhöhe ist gering.EP 572 846 proposes a modified arrangement of the lifting device in front. Instead of a conventional fork with a fix a complicated lifting device attached to the forklift Push fork supported over several axes is provided, which enables the load to be loaded laterally. there the actual mast is laterally at the front in the fork integrated and thus removed from the driver's field of vision. The handling is disadvantageous due to the additional Joint axes. Through the additional lever arms the permissible load is reduced. The lifting height is low.
WO 88/0656 beschreibt ein Konstruktionsprinzip, das den Hubmast in den hinteren Teil des Gabelstaplers verlegt. Die teleskopische Hubvorrichtung ist konventionell ausgelegt mit einem aufrechten Hubmast, der aber hinter der Fahrzeugkabine und vor der Hinterachse des Fahrzeugs gelagert ist. Ausfahrbare, horizontale Querträger verbinden diese Hubvorrichtung mit der eigentlichen Traggabel, die vor der Fahrerkabine in Front des Fahrzeugs gelagert wird. Die Befestigung der Traggabel an der Hubvorrichtung erfolgt durch die vertikal angeordnete Stirnfläche der Traggabel. Die Sichtbehinderung des Fahrers durch das Hubsystem wird beseitigt, nicht jedoch die Sichtbehinderung durch Elemente, die an der eigentlichen Traggabel angebracht sind. Zudem erlaubt das System während der Benutzung kein Verlassen der Fahrerkabine. Vorteilhaft ist die Anordnung des Hubmasts im hinteren Teil des Fahrzeugs, da so eine verbesserte Schwerpunktlage des Fahrzeugs bei aufgenommener Last erreicht wird.WO 88/0656 describes a construction principle that the lifting mast moved to the rear of the forklift. The telescopic lifting device is designed with conventional an upright mast, but behind the vehicle cabin and is mounted in front of the rear axle of the vehicle. extendable, horizontal cross beams connect this lifting device with the actual fork, which is in front of the cab Front of the vehicle is stored. The attachment of the carrying fork on the lifting device is done by the vertically arranged Face of the fork. The visual impairment of the Driver through the lifting system is eliminated, but not the Visual impairment due to elements attached to the actual Carrying fork are attached. The system also allows during no need to leave the driver's cab during use. Advantageous is the arrangement of the mast in the rear of the vehicle, because so an improved center of gravity of the vehicle is reached when the load is picked up.
Grundsätzlich ist allen diesen beschriebenen Lösungen gemeinsam, dass sie nicht die Sichtbehinderung des Fahrers durch die vertikale Stirnfläche der Traggabel, insbesondere durch Traggabeln mit daran angebrachten Zusatzvorrichtungen, beseitigen. Derartige Zusatzvorrichtungen sind vor allem Positionierungshilfen, mit deren Hilfe die Arme der Traggabel relativ zum Fahrzeug seitlich verstellt werden können oder durch die der relative Abstand der Arme der Traggabel verringert oder vergrössert werden kann. Eine derartige Vorrichtung heisst in der Fachsprache Gabel-Seitenschieber bzw. Zinkenverstelleinrichtung. Diese Positionierungseinrichtungen werden meist hydraulisch betrieben, werden einzeln oder in Kombination angebracht und sind zusammen mit zusätzlichen Führungselementen in die Traggabel integriert, und zwar in die vertikale Stirnfläche. Die aus dem Stand der Technik bekannten Gabelstapler werden vorwiegend zum Be- und Entladen von Pritschentransportern (LKWs) bei Warenlagern und Produktionseinrichtungen benutzt. Genau auf Pritschenhöhe ist beim Beladen die Sicht durch die dem Stand der Technik entsprechende Standardkonstruktion der Traggabel mit vertikaler Stirnfläche massiv beeinträchtigt.Basically, all of the solutions described are common that they are not obstructing the driver's vision the vertical end face of the fork, in particular by Remove support forks with attached attachments. Such additional devices are primarily positioning aids, with the help of the arms of the fork relative can be adjusted to the side of the vehicle or by which reduces the relative distance between the arms of the fork or can be enlarged. Such a device In technical terms it means fork sideshift or tine adjustment device. These positioning devices are usually operated hydraulically, are used individually or in Combination attached and are together with additional Guide elements integrated in the fork, namely in the vertical face. The state of the art Known forklifts are mainly used for loading and unloading of flatbed transporters (trucks) at warehouses and production facilities used. Is exactly at platform level Load the view through the state of the art Standard construction of the fork with vertical End face massively affected.
Erfindungsgemäss wird diese Aufgabe gemäss Kennzeichen von
Anspruch 1 gelöst. Dabei wird die Positionierungseinrichtung
zur Horizontalen hin geneigt und der Hubmast hinter die
Vorderachse verlegt. Als Positionierungseinrichtung im Sinne
der Patentansprüche gilt dabei die gesamte Baueinheit von
Hydraulikelementen, Führungs- und Stützelementen, welche die
Arme der Tragvorrichtung mit dem Hubmast verbinden. Die
äussere Begrenzung der Positionierungseinrichtung hat im
Querschnitt etwa die Form eines Rechtecks. Die Längsseite ist
quer zur Fahrtrichtung des Stapelfahrzeuges angeordnet.
Dadurch ergibt sich erfindungsgemäss eine flache, zur Horizontalen
geneigte Lagerung der Positionierungseinheit. Der
Neigungswinkela beträgt mindestens 30°. Vorteil dieser Anordnung
ist, dass die Positionierungseinrichtung damit in geringerem
Ausmass die Sicht nach vorne versperrt. Erfindungsgemäss
erlaubt dies, den Hubmast hinter die Vorderachse zur
Fahrzeugmitte hin zurückzusetzen. Der hinter der Vorderachse
angeordnete Hubmast und die Positionierungseinrichtung wirken
nicht als Last vor der Vorderachse, wodurch die Schwerpunktlage
verbessert wird. Ausgehend von einem Fahrzeug konventioneller
Bauart, mit 3,5 - 4 Tonnen Hubkraft und einem Mastgewicht
von ca. 900 kg, kann die Gewichterspanis 25% der
Hubkraft betragen. Das Stapelfahrzeug kann so entweder kürzer
gebaut werden oder das Gegengewicht kann leichter sein. Dies
verbessert die Manövrierbarkeit des Fahrzeugs z.B. in engen
Lagerhäusern, sowie die Beschleunigung und den Treibstoffverbrauch.
Weiterhin wird durch Zurücksetzen des Hubmastes nach
seitlich hinten, und eine dem Stand der Technik gemässe
kompakte Ausführung des Hubmastes mit innenliegender hydraulischer
Hubvorrichtung, das Sichtfeld des Fahrers entscheidend
vergrössert, insbesondere in Fahrtrichtung nach vorn.According to the invention, this task is performed according to the characteristics of
Eine Positionierungseinrichtung im Sinne dieser Erfindung umfasst mechanische und hydraulische Vorrichtungen, wie sie für Zinkenverstellgeräte, Seitenschieber, Fass- und Ballenklammern, Klammergabeln oder eine Kombination derartiger Funktionen notwendig sind. Ein Seitenschieber erlaubt das seitliche Verschieben der Tragvorrichtung relativ zum Fahrzeug. Dies erlaubt exaktes feines Positionieren der Tragarme, ohne erneut die Fahrzeugposition verändern zu müssen. Eine Verstellvorrichtung für einzelne Arme der Tragvorrichtung relativ zueinander erlaubt exaktes Anpassen der Tragvorrichtung an die Last, z.B. an die Unterseitenführung von Paletten. Beide genannten Positionierungseinrichtung sind in der Praxis zweckmässig und gebräuchlich, erfordern aber eine Vielzahl zusätzlicher Bauelemente. Bei diesen Elementen handelt es sich vornehmlich um Teleskop- und Stützstreben sowie um Hydraulikzylinder. Die Gesamtheit dieser Elemente ist in einem rechteckigem Querschnitt angeordnet und bildet die Positionierungseinrichtung. Die einzelnen Bauelemente können dabei, abgesehen von funktionsnotwendigen Verbindungen, offenliegen, in einem Rahmen gefasst oder mit Sichtblenden verschalt sein. Erst die erfindungsgemässe Anordnung der Positionierungseinrichtung erlaubt, die Sichtbehinderung durch letztere, insbesondere beim Beladen eines Lkw's auf halber Höhe zu minimieren.A positioning device in the sense of this invention includes mechanical and hydraulic devices as they for tine adjustment devices, sideshift, barrel and bale clamps, Clamping forks or a combination of such Functions are necessary. A sideshift allows that lateral displacement of the support device relative to the vehicle. This allows the support arms to be precisely positioned, without having to change the vehicle position again. A Adjustment device for individual arms of the carrying device relative to each other allows exact adjustment of the carrying device to the load, e.g. to the bottom guide of pallets. Both positioning devices mentioned are in practice expedient and common, but require a large number additional components. These are the elements primarily around telescopic and support struts as well as Hydraulic cylinder. The entirety of these elements is in arranged in a rectangular cross section and forms the Positioning device. The individual components can apart from the necessary connections, exposed, contained in a frame or with screens be boarded up. Only the arrangement according to the invention Positioning device allows the visual impairment by the latter, especially when loading a truck to minimize half height.
Vorteilhaft wird die Positionierungseinrichtung in einem Winkel von mehr als α=60° zwischen der Vertikalen des Hubmastes und der Längsachse der Positionierungseinrichtung gelagert, da dann das in Blickrichtung liegende Profil der Positionierungseinrichtung eine sehr geringe Querschnittfläche aufweist.The positioning device in one is advantageous Angle of more than α = 60 ° between the vertical of the Lift mast and the longitudinal axis of the positioning device stored, because then the profile of the Positioning device has a very small cross-sectional area having.
Vorteilhaft verbindet ein zusätzliches, vorzugsweise vertikales Verbindungselement die Arme der Tragvorrichtung und die Positionierungseinrichtung. Der Fahrer hat so beim Laden in halber Höhe freie Sicht auf die Gabelarme, während sich die Positionierungseinrichtung oben ausserhalb der Blickrichtung befindet. Dieses Merkmal der Erfindung wird auch durch jede andere, von der Vertikalen abweichende Anordnung dieses Verbindungselementes erfüllt, sofern es eine vertikale Verlagerung der Positionierungseinrichtung in Relation zu den Armen der Tragvorrichtung bewirkt.An additional, preferably vertical, one advantageously connects Connecting element the arms of the support device and the positioning device. The driver has so when loading at half height clear view of the fork arms while moving the positioning device above outside of the viewing direction located. This feature of the invention will also by any other arrangement that deviates from the vertical this connecting element, provided it is vertical Relocation of the positioning device in relation to the Arms of the carrying device causes.
Vorteilhaft wird eine so angeordnete Positionierungseinrichtung über der Vorderachse angeordnet, um so weder durch die Ausdehnung in Richtung der Längsachse des Fahrzeugs noch durch ihr Eigengewicht die Hebelwirkung der mit der Tragvorrichtung aufgenommenen Last zu verstärken. Die Last wird dabei von den Vorderrädern aufgenommen. Die erfindungsgemässe Anordnung der Positionierungseinrichtung verbessert also sowohl die Sicht nach vorn wie auch die Schwerpunktlage des Fahrzeugs.A positioning device arranged in this way is advantageous arranged above the front axle, so that neither by the Expansion in the direction of the longitudinal axis of the vehicle still due to their own weight, the leverage of the carrying device to reinforce the absorbed load. The burden will be picked up by the front wheels. The inventive Arrangement of the positioning device is improved both the forward view and the center of gravity of the Vehicle.
Eine Tragvorrichtung im Sinne dieser Erfindung umfasst eine oder mehrere Arme, die mit einer Seite an der Positionierungseinrichtung befestigt sind und , parallel angeordnet, nach vorne in Längsrichtung des Fahrzeugs weisen. Üblicherweise wird es sich um eine Traggabel mit mindestens zwei Zinken rechteckigen Querschnitts handeln, die das einfache Transportieren von auf Paletten gelagerten Gütern erlauben. Erfindungsgemäss kann die Tragvorrichtung aber auch als Fass- oder Ballenklammer, Tragdorn oder als eine ähnliche Greif- oder Stützvorrichtung, wie sie üblicherweise bei Gabelstaplern zum Einsatz kommt, ausgebildet sein.A carrying device in the sense of this invention comprises one or multiple arms with one side on the positioning device are attached and, arranged in parallel, point forward in the longitudinal direction of the vehicle. Usually it will be a carrying fork with at least two Act prongs of rectangular cross-section, which is the easy one Allow goods stored on pallets to be transported. According to the invention, the carrying device can also be used as a barrel or bale clamp, supporting mandrel or as a similar gripping or support device, as is usually the case with forklifts used, be trained.
Eine Positionierungseinrichtung im Sinne dieser Erfindung wird, bezogen auf die erfindungsgemässe Anordnung am Fahrzeug, eine deutlich grössere Längenausdehung (in Richtung der Fahrzeuglängsachse) als Höhe besitzen. Vorzugsweise wird das Verhältnis Länge:Höhe 3:1 bis 7:1 betragen.A positioning device in the sense of this invention is, based on the arrangement according to the invention on the vehicle, a significantly larger length extension (in the direction of the Vehicle longitudinal axis) as height. Preferably that is Ratio length: height 3: 1 to 7: 1.
Bevorzugte Ausführungsform der Erfindung ist ein Gabelstapler mit flach über der Vorderachse gelagerter Positionierungshilfe und einem einzelnen, hinter der Vorderachse seitlich versetzten Hubmast. Bei grösseren Hubkräften kann ein zweiter Hubmast auf der entgegengesetzten Fahrzeugseite, symmetrisch zum ersten, angebracht werden. Der Gabelstapler hat in der Regel zwei Vorderräder. Es sind jedoch auch Ausführungsformen mit einem Vorderrad bekannt. Der Mast ist in der Regel vertikal angeordnet. Es sind aber auch leicht geneigte Mastanordnungen bekannt. Die Erfindung ist im folgenden in einem Ausführungsbeispiel anhand von Zeichnungen näher erläutert. Es zeigen:
Figur 1- eine Seitenansicht des Fahrzeugs mit Anordnung der Elemente des Hubsystems,
Figur 2- eine Aufsicht auf das Fahrzeug,
Figur 3- eine Frontalansicht des Fahrzeugs und
- Figur 4
- Positionierungseinrichtung im Ausschnitt.
- Figure 1
- a side view of the vehicle with arrangement of the elements of the lifting system,
- Figure 2
- a supervision of the vehicle,
- Figure 3
- a front view of the vehicle and
- Figure 4
- Positioning device in the cutout.
Figur 1 zeigt die Seitenansicht eines Stapler-Fahrzeugs F mit
den Merkmalen der Erfindung. Es handelt sich um eine vierrädrige
Ausführung mit zwei frontseitig und parallel angeordneten
Rädern 2. Eine Bedienungseinheit 1 für einen Fahrer H
ist in der Mitte M des Stapler-Fahrzeugs F. Ein vertikal
angeordneter Hubmast 3, der der Führung einer Traggabel 5
dient, ist hinter der vorderen Drehachse 9a plaziert. Eine
konventionelle hydraulische Hubeinheit 4 ist vorzugsweise im
Mast integriert. Am Hubmast 3 bzw. der Hubeinheit 4 befestigt,
befindet sich eine Traggabel 5, die nach vorne über
die Stirnseite 10 hinausragt. Die Traggabel 5 ist entweder in
angehobener Position I sowie in tiefsten Position II dargestellt.
Die Kopfhöhe des Fahrers H ist bezeichnet, um die
beim Ausführungsbeispiel erreichte freie Durchsicht auf die
Tragarme 5a bei in halber Höhe angehobener Traggabel 5 zu
verdeutlichen. Eine Positionierungshilfe 6 umfasst sämtliche
Elemente, die für die hydraulische Verstellung der Tragarme
5a notwendig sind, nämlich Hydraulikzylinder 8 und verstellbare
Stützstreben 7. Der horizontale Anteil der Traggabel 5,
die Tragarme 5a, ist durch ein vertikales Element 5b mit der
Positionierungshilfe 6 verbunden. Die Positionierungshilfe 6
ist flach im Winkel α = 60° aus der Vertikalen B relativ zu
ihrer Längsachse A geneigt. Sie dient so als Verbindungselement
der Tragarme 5a mit dem Hubmast 3.Figure 1 shows the side view of a forklift vehicle F with
the features of the invention. It is a four-wheeler
Version with two front and parallel arranged
Figur 2 zeigt eine Draufsicht auf das Stapler-Fahrzeug F
gemäss Fig.1. Im Grundriss ist der Hubmast 3 seitlich versetzt
von der Längsachse A des Fahrzeugs im vorderen Bereich
angeordnet, nämlich zwischen Bedienungseinheit 1 und Vorderachse
9a. Dadurch wird eine bessere Schwerpunktlage erzielt.
Gleichzeitig wird der Hubmast 3 aus dem Sichtfeld des Fahrers
H entfernt. Erfindungsgemäss verfügt das Stapler-Fahrzeug F
über mindestens einen Hubmast 3. Bei dieser Ausführung sollte
die Bedienungseinheit 1 des Fahrers H gleichfalls versetzt
von der Längsachse L angeordnet sein (bei einer zweimastigen
Ausführung sollte sie etwa mittig gelagert sein). Die Anordnung
der Elemente Hubmast 3 und Bedienungseinheit 1 des
Fahrers H für eine einmastige Ausführung ist nochmals in
Figur 3, Frontansicht des Fahrzeugs F gemäss Fig. 1 und 2,
dargestellt.FIG. 2 shows a top view of the forklift vehicle F.
according to Fig. 1. In the floor plan, the
In dieser Darstellung wird das geringe Querschnittsprofil der
Positionierungeinrichtung 6 in Fahrtrichtung hervorgehoben.
Gemäss der Figur 1 ist ein Hauptvorteil der Erfindung die
freie Sicht, die dem Fahrer H durch die flache Anordnung der
Positionierungshilfe 6 auf die Tragarme 5a gewährt wird. Die
Positionierungshilfe 6 wird nur mit ihrer Schmalseite S dem
Fahrer zugewandt. Sie ist um α=60° relativ zur Vertikalen B
geneigt. Zusätzlich sind die horizontalen Tragarme 5a der
Traggabel 5 durch ein vertikales Element 5b von der Positionierungseinrichtung
6 nach unten hin abgesetzt.In this representation, the small cross-sectional profile of the
Positioning device 6 highlighted in the direction of travel.
According to FIG. 1, a main advantage of the invention is that
clear view, which the driver H through the flat arrangement of the
Positioning aid 6 is granted to the support arms 5a. The
Positioning aid 6 is only with its narrow side S.
Driver facing. It is around α = 60 ° relative to the vertical B
inclined. In addition, the horizontal support arms 5a are the
Carrying fork 5 through a
Figur 4 zeigt die Positionierungseinrichtung 6 im Ausschnitt
und in leicht vergrösserter Darstellung mit der Traggabel 5
im Halbprofil. Die um den Faktor 8 grössere Längenausdehnung
1 als die Höhe v der Positionierungseinrichtung 6 wird so
deutlich. Vor allem lässt sich die Erfindung auch mit kleinerem
Verhältnissen von v:b verwirklichen. Vor allem haben sich
auch Verhältnisse von 1:3 bis 1:6 bewährt. Der Neigungswinkel
α zwischen der Längsachse der Positionierungseinrichtung A
und der Vertikalen ist zwecks besserer Darstellung gegenüber
den vorangegangenen Figuren 1 bis 3 verändert. Die Elemente
der Positionierungseinrichtung 6, verstellbare Stützstreben 7
und Hydraulikzylinder 8, bilden einen rechteckigen Querschnitt.
Die gezeigte Ausführungsform ist die einer Klammergabel.
Die Erfindung beschränkt sich natürlich nicht auf die
in den Figuren beschriebene Ausführungsform, die nur exemplarischen
Charakter hat.Figure 4 shows the positioning device 6 in a detail
and in a slightly enlarged representation with the carrying fork 5
in half profile. The length extension greater by a factor of 8
1 as the height v of the positioning device 6 becomes so
clear. Above all, the invention can also be used with a smaller one
Realize relationships of v: b. Most of all
ratios from 1: 3 to 1: 6 have also proven successful. The angle of inclination
α between the longitudinal axis of the positioning device A
and the vertical is opposite for better illustration
the previous figures 1 to 3 changed. The Elements
the positioning device 6, adjustable support struts 7
and
Claims (8)
- A lift truck vehicle, in particular a fork lift truck, with an operating unit (1) for a driver, with wheels with rotating axles (9), wherein at least one wheel, preferably two wheels are mounted parallel to one another and neighbouring the end-face side (10), with at least one lift mast (3) which is mounted behind the rotating axle (9a) of the front wheels (2) in the direction towards the vehicle middle (M), with a lift unit (4) for lifting a carrier device (5) in the vertical direction along the lift mast (3), wherein the carrier device (5) is fastened at approximately right angles to the lift unit (4) on this by way of a positioning means (6), and whereby the positioning means (6) in the longitudinal direction of the vehicle has a larger longitudinal extension (1) than in the vertical direction (v)
characterised inthat the lift mast (3) is mounted laterally displaced to the longitudinal axis (L) of the vehicle (4) and in front of the operating unit (1),and that the positioning means (6) in its longitudinal axis (A) is inclined at an angle (α) to the vertical axis (B) of the lift mast (3). - A lift truck vehicle according to claim 1, characterised in that the positioning means (6) is formed for the lateral, horizontal adjustment of the carrier device (5).
- A lift truck vehicle according to claim 1 or 2, characterised in that the positioning means (6) is formed for the relative relocation of the arms (5a) of the carrier device (5) or of groups of arms to one another, which preferably comprises hydraulic adjusting means, preferably piston arrangements (8).
- A lift truck vehicle according to one or more of the preceding claims, characterised in that the longitudinal axis (A) of the positioning means is inclined at an angle (α) of more than 60° to the vertical axis (B) of the mast (3).
- A lift truck vehicle according to one or more of the preceding claims, characterised in that between the positioning means (6) and the carrier arms (5a) there is provided a roughly vertically arranged connection element (5b).
- A lift truck vehicle according to one or more of the preceding claims, characterised in that the positioning means (6) is arranged over the front wheels (2).
- A lift truck vehicle according to one or more of the preceding claims, characterised in that the carrier device (5) comprises a carrier fork (5).
- A lift truck vehicle according to one or more of the preceding claims, characterised in that the length (1) of the positioniong means (6) is at least 3 times, preferably at least 8 times larger than the height in the vertical direction (v).
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES99810268T ES2174584T3 (en) | 1999-03-29 | 1999-03-29 | LIFTING VEHICLE FOR STACKING, IN SPECIAL LIFTING TRUCK, POSITIONING CONDITIONING. |
| AT99810268T ATE214349T1 (en) | 1999-03-29 | 1999-03-29 | STACKER VEHICLE, IN PARTICULAR FORKLIFT, WITH POSITIONING DEVICE |
| EP99810268A EP1043268B1 (en) | 1999-03-29 | 1999-03-29 | Lift truck, in particular fork lift truck equipped with a positioning device |
| PT99810268T PT1043268E (en) | 1999-03-29 | 1999-03-29 | A stacking vehicle, in particular a fork stacker, with positioning device. |
| DK99810268T DK1043268T3 (en) | 1999-03-29 | 1999-03-29 | Lift truck vehicle, especially forklift truck, with positioning device |
| DE59900977T DE59900977D1 (en) | 1999-03-29 | 1999-03-29 | Forklift vehicle, in particular forklift truck, with positioning device |
| US09/505,780 US6241454B1 (en) | 1999-03-29 | 2000-02-17 | Lift truck vehicle, with a positioning means |
| JP2000059774A JP2000289996A (en) | 1999-03-29 | 2000-03-06 | Lift vehicle, particularly, fork lift truck with positioning means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99810268A EP1043268B1 (en) | 1999-03-29 | 1999-03-29 | Lift truck, in particular fork lift truck equipped with a positioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1043268A1 EP1043268A1 (en) | 2000-10-11 |
| EP1043268B1 true EP1043268B1 (en) | 2002-03-13 |
Family
ID=8242744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99810268A Expired - Lifetime EP1043268B1 (en) | 1999-03-29 | 1999-03-29 | Lift truck, in particular fork lift truck equipped with a positioning device |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6241454B1 (en) |
| EP (1) | EP1043268B1 (en) |
| JP (1) | JP2000289996A (en) |
| AT (1) | ATE214349T1 (en) |
| DE (1) | DE59900977D1 (en) |
| DK (1) | DK1043268T3 (en) |
| ES (1) | ES2174584T3 (en) |
| PT (1) | PT1043268E (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE523505C2 (en) * | 2000-03-03 | 2004-04-27 | Smv Lifttrucks Ab | Device for counterbalance trucks |
| US6672823B2 (en) * | 2001-09-11 | 2004-01-06 | Cascade Corporation | Fork positioner for facilitating replacement of forks on lift trucks |
| DE10305901B4 (en) * | 2003-02-13 | 2006-11-30 | Jungheinrich Aktiengesellschaft | Reach truck |
| GB0312343D0 (en) † | 2003-05-30 | 2003-07-02 | Translift Engineering Ltd | Fork lift truck |
| US6991961B2 (en) * | 2003-06-18 | 2006-01-31 | Medtronic, Inc. | Method of forming a high-voltage/high-power die package |
| AU2015318258B2 (en) | 2014-09-15 | 2019-02-14 | Crown Equipment Corporation | Lift truck with optical load sensing structure |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1878995A (en) * | 1931-06-19 | 1932-09-27 | Elwell Parker Electric Co | Industrial truck |
| US3050206A (en) * | 1958-11-18 | 1962-08-21 | James W Mccracken | Load handling system |
| US3289872A (en) * | 1964-04-20 | 1966-12-06 | Shepard Co Lewis | Order picking and stacking truck |
| DE1431503A1 (en) * | 1964-12-23 | 1968-10-31 | Steinbock Gmbh | Side loader with lifting mast and load carrier |
| JPS4833577B1 (en) * | 1969-09-27 | 1973-10-15 | ||
| US3850322A (en) * | 1973-04-03 | 1974-11-26 | Cooperloy Corp | Side loading device for fork lift trucks |
| US4290729A (en) * | 1978-11-20 | 1981-09-22 | Cary Arthur P | Angular detachable extensions to the forks of fork lift trucks |
| DE3017456C2 (en) * | 1980-05-07 | 1986-08-28 | Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg | Freely movable high-bay stacker |
| JPS58212597A (en) * | 1982-06-01 | 1983-12-10 | 日産自動車株式会社 | Side shift device for forklift |
| DE3301595C2 (en) * | 1983-01-19 | 1985-01-31 | Hans H. Meyer GmbH Maschinenbau, 3320 Salzgitter | Attachment for mobile forklifts in the form of a fork positioner with sideshift and four prongs |
| US4688981A (en) * | 1985-09-03 | 1987-08-25 | Ravnsborg Jerry K | Low load lift adapter |
| DE3618526A1 (en) | 1986-01-24 | 1987-12-03 | Weiner Rudolf | MEDICAL LIFE AND TRANSPORTATION DEVICE |
| DE3602105A1 (en) * | 1986-01-24 | 1987-07-30 | Weiner Rudolf | Lifting and transporting device for patients |
| US4688982A (en) * | 1986-08-01 | 1987-08-25 | Smart Robert L | Motorized operator unit for manually adjustable fork mechanism |
| IT213665Z2 (en) | 1987-03-13 | 1990-01-22 | Bozzi Giovanni | MAST IN PARTICULAR FOR TROLLEYS, WITH LIFTING CYLINDERS BUILT IN THE PROFILES |
| US4949816A (en) * | 1988-11-03 | 1990-08-21 | Clark Equipment Company | Upright for lift truck |
| JPH02178200A (en) * | 1988-12-28 | 1990-07-11 | Toyota Autom Loom Works Ltd | Fork lift truck |
| JPH0759477B2 (en) * | 1989-04-19 | 1995-06-28 | 日産自動車株式会社 | Forklift shift fork device |
| JPH03138298A (en) * | 1989-10-20 | 1991-06-12 | Toyota Autom Loom Works Ltd | Side shift device for forklift |
| DE4218412C2 (en) | 1992-06-04 | 1994-07-21 | Jakob Lach Gmbh & Co Kg | Process for the production of diamond jewelry |
| US5401134A (en) * | 1994-03-25 | 1995-03-28 | Helmut Habicht | Telescoping apparatus for lifting and discharging of containers |
| DE29606840U1 (en) | 1996-04-16 | 1996-06-27 | Jungheinrich Ag, 22047 Hamburg | Forklift |
-
1999
- 1999-03-29 DK DK99810268T patent/DK1043268T3/en active
- 1999-03-29 ES ES99810268T patent/ES2174584T3/en not_active Expired - Lifetime
- 1999-03-29 DE DE59900977T patent/DE59900977D1/en not_active Expired - Fee Related
- 1999-03-29 AT AT99810268T patent/ATE214349T1/en not_active IP Right Cessation
- 1999-03-29 EP EP99810268A patent/EP1043268B1/en not_active Expired - Lifetime
- 1999-03-29 PT PT99810268T patent/PT1043268E/en unknown
-
2000
- 2000-02-17 US US09/505,780 patent/US6241454B1/en not_active Expired - Fee Related
- 2000-03-06 JP JP2000059774A patent/JP2000289996A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| PT1043268E (en) | 2002-09-30 |
| ATE214349T1 (en) | 2002-03-15 |
| DE59900977D1 (en) | 2002-04-18 |
| EP1043268A1 (en) | 2000-10-11 |
| US6241454B1 (en) | 2001-06-05 |
| ES2174584T3 (en) | 2002-11-01 |
| DK1043268T3 (en) | 2002-07-01 |
| JP2000289996A (en) | 2000-10-17 |
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