EP1122207B1 - Swivelling reach fork - Google Patents
Swivelling reach fork Download PDFInfo
- Publication number
- EP1122207B1 EP1122207B1 EP01102597A EP01102597A EP1122207B1 EP 1122207 B1 EP1122207 B1 EP 1122207B1 EP 01102597 A EP01102597 A EP 01102597A EP 01102597 A EP01102597 A EP 01102597A EP 1122207 B1 EP1122207 B1 EP 1122207B1
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- EP
- European Patent Office
- Prior art keywords
- carrier
- roller
- reach
- rollers
- roller unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
- B66F9/147—Whole unit including fork support moves relative to mast
Definitions
- the invention relates to a swivel push fork for an industrial truck, comprising at least one carrier for a push slide, the push slide has at least two outer roller units with which the push carriage the carrier is guided horizontally displaceable and the roller units at least in Longitudinal direction of the carrier are spaced apart, and at least one middle roller unit is provided, which - viewed in the longitudinal direction of the carrier - is arranged between the two outer roller units.
- Swivel push forks are used on industrial trucks of various types, used for example in high-bay stackers or high-bay order pickers, wherein the swivel push fork is usually on the front of the vehicle a mast is attached to be raised.
- man-up devices is in common with the swivel push fork can lift a driver's cab along the mast, while with man-down devices, the liftable swivel push fork by an im Ground area driver's seat is controlled from.
- a generic swivel push fork is for example from DE 2 327 047 A. known.
- This document discloses a swivel push fork in which a Push carriage slidably mounted on a carrier by means of two roller units is. Between the roller units mentioned there are two perpendicular to these aligned rollers with which the vertical forces acting on the push slide be supported on the carrier.
- roller units To move the push carriage in the transverse direction of the truck enable, the push slide is guided on the carrier by means of roller units.
- Each roller unit consists of one or two with a vertical axis of rotation arranged rollers. This supports moments acting around a vertical axis can be at least two roller units in the transverse direction of the Truck spaced apart. An optimal support width is achieved if these role units, in the present context as external Roller units are referred to at the lateral end areas of the Push carriage are arranged.
- the carrier In order to be able to support moments that are about a horizontal transverse axis of the Truck are directed, the carrier has two vertically spaced Guide areas, which are assigned roller units of the slide are.
- the push slide thus has upper and lower roller units. Usually two upper and two lower roller units are provided.
- the carrier on which the push slide is guided extends in the Usually across the entire width of the vehicle.
- the carrier points to the side of the
- the shelves located on the truck have a normal safety distance. While When storing objects on the shelves, this safety distance of the load handler is exceeded as completely as possible. This is it required to push the slide at least partially over the lateral boundary of the To move the wearer what is referred to as a thrust in specialist circles.
- the lateral mobility of the push carriage is limited by the fact that the roller units provided on the push slide with which the push slide on Carrier is led, must remain engaged.
- solutions with a to increase the thrust are known two-part carrier, in which the push carriage on a second carrier part is guided, which is displaceable relative to the first, non-movable support part.
- Such solutions are complex to manufacture and increase in size in addition, the front dimension of the swivel push fork in the longitudinal direction of the industrial truck, with which the moment load of the mast and, in the case of man-up devices, also that Distance of the load from the driver's cab is increased.
- the present invention is therefore based on the object of being easy to manufacture Swivel pusher fork with an enlarged stem size that remains the same To provide overflow.
- This object is achieved in that for the movement of the An end position is provided relative to the carrier in which at least one outer roller unit - viewed in the longitudinal direction of the carrier the carrier is spaced, while at least one central roller unit on the Carrier is guided.
- the longitudinal direction of the carrier corresponds to the transverse direction of the Industrial truck.
- the Thrust slide acting moments directed around a vertical axis supported outer roller units.
- the arrangement according to the invention makes it possible however, to move the slide carriage sideways into a position at one of the two outer roller units the guide area of the carrier has left. The sliding carriage is then guided on the carrier via a outer roller unit and the middle roller unit. With this arrangement, a Thrust can be achieved, which is approximately half the width of the slide equivalent.
- the end position can be defined by an end stop, which is the maximum thrust of the slide.
- the roller units can be designed such that the roller unit is a has only role that within a U-shaped guide rail the carrier is arranged. With a single roller, forces can thus be applied in the longitudinal direction and transmitted in the rearward longitudinal direction of the industrial truck become.
- the roller unit has a pair of rollers, the two Rolls of the pair of rolls - viewed in the horizontal transverse direction of the carrier - spaced apart and a common or two separate Guide rails are assigned.
- a roll is provided in the backward longitudinal direction.
- the guide rail is designed as an I-profile, for example, the Roll a pair of rolls on opposite sides of the same profile roll.
- two separate roles can also be used for the two roles Guide rails may be provided.
- the space requirement of the roller units of the swivel push fork in the transverse direction of the Industrial truck can be minimized in that at least one role of middle role unit to at least one role of an outer role unit - in viewed in the vertical direction - is spaced.
- a role is preferably the middle roller unit compared to the neighboring rollers of the outer one Roller units offset in the vertical direction.
- the diameter of the middle roll can be independent of the existing between the two outer roles Free space can be chosen.
- the middle roller unit is at least one guide rail of the carrier assigned, which relate exclusively to a lateral end region of the carrier extends.
- the guide rail for the middle roller unit thus extends only to an area where the middle roller unit is guided is necessary to enable a transfer. If the push slide is in lateral direction completely in the area of the carrier, is the middle Roller unit not guided. This ensures that the push slide is always with the largest possible support width is attached to the beam. At the same time, through the spatial limitation of the guide rail for the middle roller unit Manufacturing costs of the carrier can be minimized.
- the carrier has at least one upper and one lower guide area Has guide rails, the sliding carriage upper and lower Has role units that are assigned to the respective management area.
- the two guide areas are preferably located on the upper and lower End of the carrier.
- the load-side roller of the roller pair a smaller Has diameter than the role of the roller pair facing away from the load. It is equally advantageous if at least one lower roller unit as Is executed pair of rollers, the load-side roller of the pair of rollers is a larger one Has diameter than the role of the roller pair facing away from the load. There are each run those roles with larger diameter, which in the Supporting weight forces of a load experience the greater load.
- FIG. 1 shows a high-rack stacker in as a generic industrial truck Top view.
- the high rack stacker has a drive part standing on the road 1 on which an extendable mast 2 is attached.
- a driver's cab 3 is arranged on which a Carrier 4 of the swivel push fork is attached.
- a Push slide 5 of the swivel push fork is attached along the carrier 4 .
- a load suspension device 6 designed as a load fork is on the Push carriage 5 rotatably mounted about a vertical axis 7.
- the Arrangement according to the invention should be the largest possible overflow of the Slide carriage 5 can be reached. This means that the lateral contour of the Push carriage 5 as far as possible beyond the lateral boundary 4 of the carrier should be moved.
- Starting from the position shown in Fig. 1 is a Overrun reached when the push carriage 5 is shifted further in the direction of arrow 8 becomes.
- FIG 2 shows the arrangement of the carrier 4 and the slide 5 in a section in the longitudinal direction of the industrial truck.
- the carrier 4 has an upper Guide area 10 and a lower guide area 11, each Roller units of the slide 5 are assigned.
- a middle roller unit each consisting of two rollers 12, 13 and 14, 15 consist.
- Each of these roles 12, 13, 14, 15 of the middle role units is one Guide rail 16, 17, 18, 19 assigned to the carrier 4.
- the guide rails 16 and 19 extend here only over the end region of the carrier 4, since the Rolls 12 and 15 are only needed during the transfer.
- the role units of the Rollers 20, 22 belonging to other rolls are in the present view hidden by the rollers 13 and 14 and are together with guided on the continuous guide rails 17, 18.
- the vertical forces acting on the slide 5 are at least one further roller 30, which rolls on a continuous guide rail 38, on the Supported 4.
- Those for moving the sliding carriage 5 along the carrier 4 required force is generated by means of a hydraulic motor 31 which is a shaft 32 drives with two gears 33, 34, which are arranged in two on the carrier 4 Engage racks 35, 36.
- the connection of the carrier 4 with a load-bearing Component of the driver's cab 3 takes place by means of a suspension device 37 of the carrier 4.
- Figure 3 shows a top view of the arrangement of the roller units of the upper one Guide area in the non-overturned position of the slide 5.
- this Position is the push slide 5 on the carrier 4 by means of the two outer ones Roller units guided, the rollers 16 and 40 on the guide rail 24 and unroll the rollers 21 and 41 on the guide rail 17.
- About the middle one No roller forces are transmitted in this position of the slide 5. Due to their greater load, those in the illustration on the left are Guide rails arranged rollers 12, 20, 40 with a larger diameter executed as the rollers 13, 21, 41 to the right of the guide rails.
- FIG. 4 shows the view according to FIG. 3 with the slide 5 pushed over shown.
- the thrust U in this version is approx. 60 mm.
- the roles 20 and 21 are located outside the guide area of the carrier 4. Instead, it is possible to support moments acting in the direction of 42 according to the invention, the roller 12 of the middle roller unit in the guide rail 16 guided.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Description
Die Erfindung betrifft eine Schwenkschubgabel für ein Flurförderzeug, umfassend mindestens einen Träger für einen Schubschlitten, wobei der Schubschlitten mindestens zwei äußere Rolleneinheiten aufweist, mit denen der Schubschlitten an dem Träger horizontal verschiebbar geführt ist und die Rolleneinheiten zumindest in Längsrichtung des Trägers voneinander beabstandet sind, und wobei mindestens eine mittlere Rolleneinheit vorgesehen ist, die - in Längsrichtung des Trägers betrachtet - zwischen den beiden äußeren Rolleneinheiten angeordnet ist.The invention relates to a swivel push fork for an industrial truck, comprising at least one carrier for a push slide, the push slide has at least two outer roller units with which the push carriage the carrier is guided horizontally displaceable and the roller units at least in Longitudinal direction of the carrier are spaced apart, and at least one middle roller unit is provided, which - viewed in the longitudinal direction of the carrier - is arranged between the two outer roller units.
Schwenkschubgabeln werden bei Flurförderzeugen verschiedenen Typs, beispielsweise bei Hochregalstaplern oder Hochregalkommissionierern eingesetzt, wobei die Schwenkschubgabel in der Regel an der Vorderseite des Fahrzeugs mittels eines Hubgerüsts anhebbar befestigt ist. Bei Mann-oben-Geräten ist gemeinsam mit der Schwenkschubgabel eine Fahrerkabine entlang des Hubgerüsts anhebbar, während bei Mann-unten-Geräten die anhebbare Schwenkschubgabel von einem im Bodenbereich befindlichen Fahrerplatz aus gesteuert wird.Swivel push forks are used on industrial trucks of various types, used for example in high-bay stackers or high-bay order pickers, wherein the swivel push fork is usually on the front of the vehicle a mast is attached to be raised. With man-up devices is in common with the swivel push fork can lift a driver's cab along the mast, while with man-down devices, the liftable swivel push fork by an im Ground area driver's seat is controlled from.
Eine gattungsgemäße Schwenkschubgabel ist beispielsweise aus der DE 2 327 047 A bekannt. Diese Druckschrift offenbart eine Schwenkschubgabel, bei der ein Schubschlitten mittels zweier Rolleneinheiten verschiebbar an einem Träger gelagert ist. Zwischen den genannten Rolleneinheiten befinden sich zwei zu diesen senkrecht ausgerichtete Rollen, mit denen die auf den Schubschlitten wirkenden Vertikalkräfte auf dem Träger abgestützt werden.A generic swivel push fork is for example from DE 2 327 047 A. known. This document discloses a swivel push fork in which a Push carriage slidably mounted on a carrier by means of two roller units is. Between the roller units mentioned there are two perpendicular to these aligned rollers with which the vertical forces acting on the push slide be supported on the carrier.
Bei der Handhabung von Lasten werden mit Schwenkschubgabeln folgende Bewegungsvorgänge durchgeführt:
- Verschieben der Last in Querrichtung des Flurförderzeugs, z.B. zum Ein- und Auslagern von Lasten in seitlich des Flurförderzeugs angeordnete Regale. Die Schwenkschubgabel weist hierzu einen Träger auf, der mittels des Hubgerüsts in vertikaler Richtung bewegbar ist. An dem sich in Querrichtung des Flurförderzeugs erstreckenden Träger ist ein Schubschlitten mittels Rolleneinheiten verschiebbar geführt.
- Drehen der Last um eine vertikale Achse, z.B. zum Umsetzen einer Last von der linken auf die rechte Seite des Flurförderzeugs, oder umgekehrt. Hierzu ist an dem Schubschlitten ein Drehwerk befestigt, an dem eine beispielsweise als Lastgabel ausgeführte Lastaufnahmevorrichtung befestigt ist.
- Zusätzlich weisen manche Schwenkschubgabeln eine Initialhubvorrichtung auf, die zwischen dem Drehwerk und der Lastaufnahmevorrichtung angeordnet ist. Schwenkschubgabeln mit einer solchen Initialhubvorrichtung werden insbesondere bei Mann-oben-Geräten eingesetzt, um die Höhe der Last relativ zu der Fahrerkabine einstellen zu können.
- Moving the load in the transverse direction of the industrial truck, e.g. for storing and retrieving loads in shelves arranged on the side of the industrial truck. For this purpose, the swivel push fork has a carrier which can be moved in the vertical direction by means of the mast. On the carrier extending in the transverse direction of the industrial truck, a push slide is guided so as to be displaceable by means of roller units.
- Rotating the load around a vertical axis, e.g. to transfer a load from the left to the right side of the truck, or vice versa. For this purpose, a slewing gear is fastened to the push slide, to which a load-carrying device, for example a load fork, is fastened.
- In addition, some swivel push forks have an initial lifting device, which is arranged between the rotating mechanism and the load suspension device. Swivel push forks with such an initial lifting device are used in particular in man-up devices in order to be able to adjust the height of the load relative to the driver's cabin.
Um eine Bewegung des Schubschlittens in Querrichtung des Flurförderzeugs zu ermöglichen, ist der Schubschlitten an dem Träger mittels Rolleneinheiten geführt. Jede Rolleneinheit besteht hierbei aus einer oder zwei mit senkrechter Drehachse angeordneten Laufrollen. Damit um eine vertikale Achse wirkende Momente abgestützt werden können, sind mindestens zwei Rolleneinheiten in Querrichtung des Flurförderzeugs voneinander beabstandet. Eine optimale Abstützbreite wird erreicht, wenn diese Rolleneinheiten, die im vorliegenden Zusammenhang als äußere Rolleneinheiten bezeichnet werden, an den seitlichen Endbereichen des Schubschlittens angeordnet sind.To move the push carriage in the transverse direction of the truck enable, the push slide is guided on the carrier by means of roller units. Each roller unit consists of one or two with a vertical axis of rotation arranged rollers. This supports moments acting around a vertical axis can be at least two roller units in the transverse direction of the Truck spaced apart. An optimal support width is achieved if these role units, in the present context as external Roller units are referred to at the lateral end areas of the Push carriage are arranged.
Um Momente abstützen zu können, die um eine horizontale Querachse des Flurförderzeugs gerichtet sind, weist der Träger zwei vertikal beabstandete Führungsbereiche auf, denen jeweils Rolleneinheiten des Schubschlittens zugeordnet sind. Der Schubschlitten weist somit obere und untere Rolleneinheiten auf. Üblicherweise sind zwei obere und zwei untere Rolleneinheiten vorgesehen.In order to be able to support moments that are about a horizontal transverse axis of the Truck are directed, the carrier has two vertically spaced Guide areas, which are assigned roller units of the slide are. The push slide thus has upper and lower roller units. Usually two upper and two lower roller units are provided.
Der Träger, an dem der Schubschlitten verschiebbar geführt ist, erstreckt sich in der Regel über die gesamte Breite des Fahrzeugs. Der Träger weist zu den seitlich des Flurförderzeugs befindlichen Regalen einen üblichen Sicherheitsabstand auf. Während des Einlagerns von Gegenständen in die Regale soll dieser Sicherheitsabstand von dem Lastaufnahmemittel möglichst vollständig überschritten werden. Hierzu ist es erforderlich, den Schubschlitten zumindest teilweise über die seitliche Begrenzung des Trägers hinaus zu bewegen, was in Fachkreisen als Überschub bezeichnet wird. Begrenzt wird die seitliche Bewegbarkeit des Schubschlittens jedoch dadurch, daß die am Schubschlitten vorgesehenen Rolleneinheiten, mit denen der Schubschlitten am Träger geführt ist, in Eingriff bleiben müssen.The carrier on which the push slide is guided extends in the Usually across the entire width of the vehicle. The carrier points to the side of the The shelves located on the truck have a normal safety distance. While When storing objects on the shelves, this safety distance of the load handler is exceeded as completely as possible. This is it required to push the slide at least partially over the lateral boundary of the To move the wearer what is referred to as a thrust in specialist circles. However, the lateral mobility of the push carriage is limited by the fact that the roller units provided on the push slide with which the push slide on Carrier is led, must remain engaged.
Zur Vergrößerung des Überschubs sind im Stand der Technik Lösungen mit einem zweiteiligen Träger bekannt, bei dem der Schubschlitten an einem zweiten Trägerteil geführt ist, der gegenüber dem ersten, nicht bewegbaren Trägerteil verschiebbar ist. Derartige Lösungen sind jedoch aufwendig in der Herstellung und vergrößern darüber hinaus das Vorbaumaß der Schwenkschubgabel in Längsrichtung des Flurförderzeugs, womit die Momentenbelastung des Hubgerüsts und bei Mann-oben-Geräten auch der Abstand der Last von der Fahrerkabine vergrößert wird. In the prior art, solutions with a to increase the thrust are known two-part carrier, in which the push carriage on a second carrier part is guided, which is displaceable relative to the first, non-movable support part. Such solutions, however, are complex to manufacture and increase in size in addition, the front dimension of the swivel push fork in the longitudinal direction of the industrial truck, with which the moment load of the mast and, in the case of man-up devices, also that Distance of the load from the driver's cab is increased.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine einfach herstellbare Schwenkschubgabel mit einem bei gleichbleibendem Vorbaumaß vergrößerten Überschub zur Verfügung zu stellen.The present invention is therefore based on the object of being easy to manufacture Swivel pusher fork with an enlarged stem size that remains the same To provide overflow.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß für die Bewegung des Schubschlittens relativ zum Träger eine Endposition vorgesehen ist, bei der mindestens eine äußere Rolleneinheit - in Längsrichtung des Trägers betrachtet -von dem Träger beabstandet ist, während mindestens eine mittlere Rolleneinheit an dem Träger geführt ist. Die Längsrichtung des Trägers entspricht der Querrichtung des Flurförderzeugs. Während des normalen Betriebs des Flurförderzeugs werden auf den Schubschlitten wirkende, um eine vertikale Achse gerichtete Momente durch die äußeren Rolleneinheiten abgestützt. Die erfindungsgemäße Anordnung ermöglicht es jedoch, den Schubschlitten in seitlicher Richtung in eine Position zu verschieben, bei der eine der beiden äußeren Rolleneinheiten den Führungsbereich des Trägers verlassen hat. Die Führung des Schubschlittens am Träger erfolgt dann über eine äußere Rolleneinheit und die mittlere Rolleneinheit. Mit dieser Anordnung kann ein Überschub erreicht werden, der annähernd der halben Breite des Schubschlittens entspricht. Die Endposition kann durch einen Endanschlag definiert sein, der somit den maximalen Überschub des Schubschlittens festlegt.This object is achieved in that for the movement of the An end position is provided relative to the carrier in which at least one outer roller unit - viewed in the longitudinal direction of the carrier the carrier is spaced, while at least one central roller unit on the Carrier is guided. The longitudinal direction of the carrier corresponds to the transverse direction of the Industrial truck. During normal operation of the industrial truck, the Thrust slide acting moments directed around a vertical axis supported outer roller units. The arrangement according to the invention makes it possible however, to move the slide carriage sideways into a position at one of the two outer roller units the guide area of the carrier has left. The sliding carriage is then guided on the carrier via a outer roller unit and the middle roller unit. With this arrangement, a Thrust can be achieved, which is approximately half the width of the slide equivalent. The end position can be defined by an end stop, which is the maximum thrust of the slide.
Die Rolleneinheiten können hierbei derart ausgeführt sein, daß die Rolleneinheit eine einzige Rolle aufweist, die innerhalb einer als U-Profil ausgebildeten Führungsschiene des Trägers angeordnet ist. Mit einer einzigen Rolle können somit Kräfte in Vorwärts-Längsrichtung und in Rückwärts-Längsrichtung des Flurförderzeugs übertragen werden.The roller units can be designed such that the roller unit is a has only role that within a U-shaped guide rail the carrier is arranged. With a single roller, forces can thus be applied in the longitudinal direction and transmitted in the rearward longitudinal direction of the industrial truck become.
Ebenso ist es möglich, daß die Rolleneinheit ein Rollenpaar aufweist, wobei die beiden Rollen des Rollenpaars - in horizontaler Querrichtung des Trägers betrachtet - voneinander beabstandet und einer gemeinsamen oder zwei getrennten Führungsschienen zugeordnet sind. Für die Übertragung von Kräften in Vorwärts-Längsrichtung und in Rückwärts-Längsrichtung ist jeweils eine Rolle vorgesehen. Wenn die Führungsschiene beispielsweise als I-Profil ausgebildet ist, können die Rollen eines Rollenpaars auf den gegenüberliegenden Seiten des selben Profils abrollen. Für die beiden Rollen eines Rollenpaars können aber auch zwei getrennte Führungsschienen vorgesehen sein. It is also possible that the roller unit has a pair of rollers, the two Rolls of the pair of rolls - viewed in the horizontal transverse direction of the carrier - spaced apart and a common or two separate Guide rails are assigned. For the transmission of forces in the longitudinal direction and a roll is provided in the backward longitudinal direction. If the guide rail is designed as an I-profile, for example, the Roll a pair of rolls on opposite sides of the same profile roll. However, two separate roles can also be used for the two roles Guide rails may be provided.
Der Platzbedarf der Rolleneinheiten der Schwenkschubgabel in Querrichtung des Flurförderzeugs kann dadurch minimiert werden, daß mindestens ein Rolle der mittleren Rolleneinheit zu mindestens einer Rolle einer äußeren Rolleneinheit - in vertikaler Richtung betrachtet - beabstandet ist. Vorzugsweise ist eine Rolle der mittleren Rolleneinheit gegenüber den benachbarten Rollen der äußeren Rolleneinheiten in vertikaler Richtung versetzt. Der Durchmesser der mittleren Rolle kann dabei unabhängig von dem zwischen den beiden äußeren Rollen vorhandenen Freiraum gewählt werden.The space requirement of the roller units of the swivel push fork in the transverse direction of the Industrial truck can be minimized in that at least one role of middle role unit to at least one role of an outer role unit - in viewed in the vertical direction - is spaced. A role is preferably the middle roller unit compared to the neighboring rollers of the outer one Roller units offset in the vertical direction. The diameter of the middle roll can be independent of the existing between the two outer roles Free space can be chosen.
Der mittleren Rolleneinheit ist mindestens eine Führungsschiene des Trägers zugeordnet, die sich ausschließlich auf einen seitlichen Endbereich des Trägers erstreckt. Die Führungsschiene für die mittlere Rolleneinheit erstreckt sich somit ausschließlich auf einen Bereich, in dem eine Führung der mittleren Rolleneinheit erforderlich ist um einen Überschub zu ermöglichen. Wenn sich der Schubschlitten in seitlicher Richtung vollständig im Bereich des Trägers befindet, ist die mittlere Rolleneinheit nicht geführt. Hiermit wird sichergestellt, daß der Schubschlitten stets mit der größtmöglichen Abstützbreite am Träger befestigt ist. Gleichzeitig können durch die räumliche Begrenzung der Führungsschiene für die mittlere Rolleneinheit die Herstellkosten des Trägers minimiert werden.The middle roller unit is at least one guide rail of the carrier assigned, which relate exclusively to a lateral end region of the carrier extends. The guide rail for the middle roller unit thus extends only to an area where the middle roller unit is guided is necessary to enable a transfer. If the push slide is in lateral direction completely in the area of the carrier, is the middle Roller unit not guided. This ensures that the push slide is always with the largest possible support width is attached to the beam. At the same time, through the spatial limitation of the guide rail for the middle roller unit Manufacturing costs of the carrier can be minimized.
Um eine horizontale Achse wirkende Momente können aufgenommen werden, wenn der Träger mindestens einen oberen und einen unteren Führungsbereich mit Führungsschienen aufweist, wobei der Schubschlitten obere und untere Rolleneinheiten aufweist, die dem jeweiligen Führungsbereich zugeordnet sind. Vorzugsweise befinden sich die beiden Führungsbereiche am oberen und am unteren Ende des Trägers. Moments acting around a horizontal axis can be recorded if the carrier has at least one upper and one lower guide area Has guide rails, the sliding carriage upper and lower Has role units that are assigned to the respective management area. The two guide areas are preferably located on the upper and lower End of the carrier.
Zweckmäßig ist es, wenn mindestens eine obere Rolleneinheit als Rollenpaar ausgeführt ist, wobei die lastseitige Rolle des Rollenpaars einen geringeren Durchmesser aufweist, als die der Last abgewandte Rolle des Rollenpaars. Gleichermaßen vorteilhaft ist es, wenn mindestens eine untere Rolleneinheit als Rollenpaar ausgeführt ist, wobei die lastseitige Rolle des Rollenpaars einen größeren Durchmesser aufweist, als die der Last abgewandte Rolle des Rollenpaars. Es sind jeweils diejenigen Rollen mit größerem Durchmesser ausgeführt, die bei der Abstützung von Gewichtskräften einer Last die größere Belastung erfahren.It is useful if at least one upper roller unit as a pair of rollers is executed, the load-side roller of the roller pair a smaller Has diameter than the role of the roller pair facing away from the load. It is equally advantageous if at least one lower roller unit as Is executed pair of rollers, the load-side roller of the pair of rollers is a larger one Has diameter than the role of the roller pair facing away from the load. There are each run those roles with larger diameter, which in the Supporting weight forces of a load experience the greater load.
Weitere Vorteile und Einzelheiten der Erfindung werden anhand des in den schematischen Figuren dargestellten Ausführungsbeispiels näher erläutert. Dabei zeigt
Figur 1- ein gattungsgemäßes Flurförderzeug in Draufsicht,
Figur 2- eine erfindungsgemäße Schwenkschubgabel im Längsschnitt,
Figur 3- eine Anordnung der Rolleneinheiten in Grundstellung des Schubschlittens,
Figur 4- die Anordnung der Rolleneinheiten in überschobener Stellung des Schubschlittens.
- Figure 1
- a generic industrial truck in top view,
- Figure 2
- a swivel push fork according to the invention in longitudinal section,
- Figure 3
- an arrangement of the roller units in the basic position of the push slide,
- Figure 4
- the arrangement of the roller units in the pushed-over position of the sliding carriage.
Figur 1 zeigt als gattungsgemäßes Flurförderzeug einen Hochregalstapler in
Draufsicht. Der Hochregalstapler weist einen auf der Fahrbahn stehenden Antriebsteil
1 auf, an dem ein nach oben ausfahrbares Hubgerüst 2 befestigt ist. An einem
ausfahrbaren Teil des Hubgerüsts 2 ist eine Fahrerkabine 3 angeordnet, an der ein
Träger 4 der Schwenkschubgabel befestigt ist. Entlang des Trägers 4 ist ein
Schubschlitten 5 der Schwenkschubgabel in Querrichtung des Flurförderzeugs
verschiebbar. Eine als Lastgabel ausgeführte Lastaufnahmevorrichtung 6 ist an dem
Schubschlitten 5 um eine vertikale Achse 7 drehbar befestigt. Mit der
erfindungsgemäßen Anordnung soll ein möglichst großer Überschub des
Schubschlittens 5 erreicht werden. Dies bedeutet, daß die seitliche Kontur des
Schubschlittens 5 möglichst weit über die seitliche Begrenzung 4 des Trägers hinaus
bewegt werden soll. Ausgehend von der in Fig. 1 dargestellten Stellung wird ein
Überschub erreicht, wenn der Schubschlitten 5 weiter in Pfeilrichtung 8 verschoben
wird. Figure 1 shows a high-rack stacker in as a generic industrial truck
Top view. The high rack stacker has a drive part standing on the
Figur 2 zeigt die Anordnung des Trägers 4 und des Schubschlittens 5 in einem Schnitt
in Längsrichtung des Flurförderzeugs. Der Träger 4 weist einen oberen
Führungsbereich 10 und einen unteren Führungsbereich 11 auf, dem jeweils
Rolleneinheiten des Schubschlittens 5 zugeordnet sind. Zu erkennen sind in dieser
Ansicht jeweils eine mittlere Rolleneinheit, die aus je zwei Rollen 12, 13 und 14, 15
bestehen. Jede dieser Rollen 12, 13, 14, 15 der mittleren Rolleneinheiten ist eine
Führungsschiene 16, 17, 18, 19 des Trägers 4 zugeordnet. Die Führugsschienen 16
und 19 erstrecken sich hierbei lediglich über den Endbereich des Trägers 4, da die
Rollen 12 und 15 nur während des Überschubs benötigt werden. Weiterhin sind in
Figur 2 jeweils eine Rolle 20, 22 zweier äußerer Rolleneinheiten dargestellt, die auf
den durchgehenden Führungsschienen 24, 25 abrollen. Die zu den Rolleneinheiten der
Rollen 20, 22 gehörenden weiteren Rollen (siehe z.B. Pos. 21, Fig. 2) sind in der
vorliegenden Ansicht durch die Rollen 13 und 14 verdeckt und sind gemeinsam mit
diesen an den durchgehenden Führungsschienen 17, 18 geführt.Figure 2 shows the arrangement of the
Die auf den Schubschlitten 5 wirkenden vertikalen Kräfte werden über mindestens eine
weitere Rolle 30, die auf einer durchgehenden Führungsschiene 38 abrollt, an dem
Träger 4 abgestützt. Die zum Verschieben des Schubschlittens 5 längs des Trägers 4
erforderliche Kraft wird mittels eines hydraulischen Motors 31 erzeugt, der eine Welle
32 mit zwei Zahnrädern 33, 34 antreibt, die in zwei am Träger 4 angeordneten
Zahnstangen 35, 36 eingreifen. Die Verbindung des Trägers 4 mit einem tragenden
Bauteil der Fahrerkabine 3 erfolgt mittels einer Einhängevorrichtung 37 des Trägers 4.The vertical forces acting on the
Figur 3 zeigt eine Draufsicht auf die Anordnung der Rolleneinheiten des oberen
Führungsbereichs in nicht überschobener Stellung des Schubschlittens 5. In dieser
Position ist der Schubschlitten 5 an dem Träger 4 mittels der beiden äußeren
Rolleneinheiten geführt, wobei die Rollen 16 und 40 an der Führungsschiene 24 und
die Rollen 21 und 41 an der Führungsschiene 17 abrollen. Über die mittlere
Rolleneinheit werden in dieser Position des Schubschlittens 5 keine Kräfte übertragen.
Aufgrund ihrer größeren Belastung sind die in der Darstellung links der
Führungsschienen angeordneten Rollen 12, 20, 40 mit größerem Durchmesser
ausgeführt, als die Rollen 13, 21, 41 rechts der Führungsschienen.Figure 3 shows a top view of the arrangement of the roller units of the upper one
Guide area in the non-overturned position of the
In Figur 4 ist die Ansicht gemäß Fig. 3 bei überschobenem Schubschlitten 5
dargestellt. Der Überschub U betragt in dieser Ausführung ca. 60 mm. Die Rollen 20
und 21 befinden sich hierbei außerhalb des Führungsbereichs des Trägers 4. Um das
Abstützen von in Richtung 42 wirkenden Momenten zu ermöglichen, ist stattdessen
erfindungsgemäß die Rolle 12 der mittleren Rolleneinheit in der Führungsschiene 16
geführt.FIG. 4 shows the view according to FIG. 3 with the
Claims (9)
- Swivelling reach fork for an industrial truck, comprising at least one carrier (4) for a reach carriage, the reach carriage having at least two outer roller units with which the reach carriage is horizontally displaceably guided on the carrier (4) and the roller units being spaced apart from one another, at least in the longitudinal direction of the carrier (4), and the reach carriage having at least one central roller unit which - as viewed in the longitudinal direction of the carrier (4) - is arranged between the two outer roller units, characterized in that, for the movement of the reach carriage (5) relative to the carrier (4), an end position is provided in which at least one outer roller unit - as viewed in the longitudinal direction of the carrier (4) - is spaced apart from the carrier (4), while at least one central roller unit is guided on the carrier (4).
- Swivelling reach fork according to Claim 1, characterized in that the at least two outer roller units and the at least one central roller unit are designed in such a way that moments acting on the reach carriage (5) and oriented about a vertical axis can be supported on an outer roller unit and on a central roller unit.
- Swivelling reach fork according to Claim 1 or 2, characterized in that at least one roller unit has a single roller which is arranged within a guide rail of the carrier (4) which is formed as a U-shaped profile.
- Swivelling reach fork according to one of Claims 1 to 3, characterized in that at least one roller unit has a pair of rollers, the two rollers of the pair of rollers - as viewed in the horizontal transverse direction of the carrier (4) - being spaced apart from each another and being assigned to one common or two separate guide rail(s).
- Swivelling reach fork according to one of Claims 1 to 4, characterized in that at least one roller of the central roller unit (12) is spaced apart from at least one roller of an outer roller unit (20, 40) - as viewed in the vertical direction.
- Swivelling reach fork according to one of Claims 1 to 5, characterized in that the central roller unit is assigned at least one guide rail (16) belonging to the carrier (4), the said rail extending exclusively over a lateral end region of the carrier (4).
- Swivelling reach fork according to one of Claims 1 to 6, characterized in that the carrier (4) has at least an upper and lower guide region with guide rails, the reach carriage having upper and lower roller units which are assigned to the respective guide region.
- Swivelling reach fork according to one of Claims 1 to 7, characterized in that at least one upper roller unit is designed as a pair of rollers, the roller (13, 21, 41) on the load side of the pair of rollers having a smaller diameter than the roller (12, 20, 40) of the pair of rollers that faces away from the load.
- Swivelling reach fork according to one of Claims 1 to 8, characterized in that at least one lower roller unit is designed as a pair of rollers, the roller on the load side of the pair of rollers having a larger diameter than the roller of the pair of rollers that faces away from the load.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10005318A DE10005318A1 (en) | 2000-02-07 | 2000-02-07 | Swivel push fork |
DE10005318 | 2000-02-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1122207A1 EP1122207A1 (en) | 2001-08-08 |
EP1122207B1 true EP1122207B1 (en) | 2004-08-04 |
Family
ID=7630085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01102597A Expired - Lifetime EP1122207B1 (en) | 2000-02-07 | 2001-02-06 | Swivelling reach fork |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1122207B1 (en) |
DE (2) | DE10005318A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005035631A1 (en) * | 2005-07-29 | 2007-02-01 | Jungheinrich Ag | Three-sided stacker, has guide tracks on side thrust frame parallel to gear rods whilst distance rollers on torsion shaft interact with guide tracks to fix distance of gear wheels from gear rods |
DE102015201098A1 (en) | 2015-01-22 | 2016-07-28 | Jungheinrich Aktiengesellschaft | Truck |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2360407A (en) * | 1943-07-10 | 1944-10-17 | Clark Equipment Co | Industrial truck |
US3106305A (en) * | 1962-08-23 | 1963-10-08 | William F Gehring | Industrial fork lift truck |
US3998346A (en) * | 1975-02-03 | 1976-12-21 | The Raymond Corporation | Material handling apparatus |
US5839873A (en) * | 1996-03-28 | 1998-11-24 | Hk Systems, Inc. | Storage and retrieval machine with pre-tensioned shuttle guides |
-
2000
- 2000-02-07 DE DE10005318A patent/DE10005318A1/en not_active Withdrawn
-
2001
- 2001-02-06 EP EP01102597A patent/EP1122207B1/en not_active Expired - Lifetime
- 2001-02-06 DE DE50103048T patent/DE50103048D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE50103048D1 (en) | 2004-09-09 |
EP1122207A1 (en) | 2001-08-08 |
DE10005318A1 (en) | 2001-08-09 |
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