EP2969891B1 - Mast assembly for an industrial truck - Google Patents
Mast assembly for an industrial truck Download PDFInfo
- Publication number
- EP2969891B1 EP2969891B1 EP14708023.8A EP14708023A EP2969891B1 EP 2969891 B1 EP2969891 B1 EP 2969891B1 EP 14708023 A EP14708023 A EP 14708023A EP 2969891 B1 EP2969891 B1 EP 2969891B1
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- European Patent Office
- Prior art keywords
- mast
- rear section
- connection plate
- rails
- connection
- 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.)
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- 125000006850 spacer group Chemical group 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims 9
- 238000010276 construction Methods 0.000 description 3
- 244000208734 Pisonia aculeata Species 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/08—Masts; Guides; Chains
Definitions
- the present invention relates to a mast for an industrial truck, in particular for a reach truck.
- the mast has a load supporting means and three mast frames, each having at least two cross members interconnected rails.
- the mast frames are at least partially arranged inside each other so that they are formed as an inner mast, a center mast and an outer mast.
- the inner mast is supported in the center mast and the center mast is supported in the outer mast.
- the outer mast is held by a mast holder on the vehicle.
- the mast holder is arranged displaceably in the vehicle longitudinal direction.
- Masts with three mast frames are well known. So describes US 7,398,859 B2 a mast with three mast frame, in which a sprocket of the lifting device is arranged on the center mast transversely in front of the inner mast. This results in a compact design of the mast, which allows an arrangement of the center mast completely within the outer mast.
- Out JP 10 152 298 a mast is known in which a C-shaped outer mast has an integrated lifting cylinder and engages a equipped with a double T-beam profile of the middle mast in the profile of the outer mast.
- Out JP 2001/247298 A is the construction of a mast known in which the profiles of the stationary mast are connected by a U-shaped bracket at the top and a lower end arranged frame construction, wherein the frame construction with rear side, perpendicular to the profiles frame members, the cross members with each other are connected.
- the mast In order to be able to load masts even at high altitudes with an acceptable load, the mast must be stiffened. It must also be ensured that, when the forces are introduced into the mast holder, there is a flow of force that is as uniform as possible without force and voltage peaks.
- the invention has for its object to provide a mast, which can accommodate large loads stable even at high lifting heights and at the same time has a compact design.
- the mast according to the invention is provided and intended for an industrial truck, in particular for a reach truck.
- the mast is equipped with a load support and three mast frames, each having two interconnected via at least two cross members rails.
- the mast frames are formed as an inner mast, a center mast and an outer mast, of which the inner mast is supported in the center mast and this in the outer mast.
- the outer mast is designed to be held in a mast holder.
- each rail of the outer mast is provided on its side facing away from the load bearing means with a connecting plate and a rear pull.
- Each rear pull extends along the profile rail and is connected at its lower, pointing to the mast holder end with the corresponding connection plate of the rail.
- the upper end of the rear pull preferably extends to the upper end of the outer mast.
- a cross member is disposed between the connection plates.
- a pull-back is provided for each of the rails, which runs along the rail and spaced from this.
- the pull-out is arranged at its end facing the mast holder on the connecting plate and connected thereto.
- the provided in the mast holder cross member, which receives the transverse forces acting between the rails, is also connected via the connecting plates with the rails.
- both the forwarded by the pull of the outer mast forces and the transverse forces acting between the rails are introduced via the connecting plates in the rails.
- each of the connection plates has a greater width than the profile rail of the outer mast, wherein the connection plates extend into the region between the profile rails.
- the connecting plates are each wider than the profile rails of the outer mast on the side facing away from the load supporting means.
- the rails are arranged on the outer mast that they project into the area between the rails of the outer mast.
- the connecting plates can protrude laterally outward beyond the profiled rails or can be flush with the profiled rails on their outer sides.
- the cross member between connecting plates and the rear train is connected in a common height with the connecting plates.
- the connecting plates In this way, spatially widely spaced introduction points for the attacking forces are avoided and it takes place in a spatially compact manner, the introduction of the forces acting on the outer mast forces.
- the introduction of the forces from each of the rear links into the connecting plate is assisted by connecting each of the rear links with a flat side and in particular with its largest flat side with the associated connecting plate.
- each of the connecting plates tapers at its end pointing to the rear end in its width.
- the pointing to the rear End of the connecting plate is the upward-facing end of the connecting plate.
- the width here refers to the plane spanned by the rails of the outer mast.
- the tapered end of the connection plate causes the surface with which the connection plate is connected to the profile rail of the outer mast to decrease along the connection plate.
- the force over the entire width of the connecting plate or over the entire width of the rail can be introduced into the connecting plate, in the tapered region of the connecting plate is only connected to the rail portion of the connecting plate for the introduction of the force available , As a result, a uniform force flow is effected, can be avoided with the force and voltage peaks on the outer mast.
- the rear end of the connecting plate is formed with a triangular shape.
- the pull from above initially strikes a very narrow area of the connecting plate in the region of a tip of the triangle.
- the connecting surface between the rear draw and connecting plate in the direction down to the crossbar steadily increases.
- an edge of the rear strip coincides with an edge of the connecting plate, wherein the rear strip connected to the connecting plate is connected to its end over its entire width with the connecting plate.
- transverse struts are each arranged with their ends between the rear train and rail. This means that in the cross struts, the connection of the rear pull on the back of the rail via the cross struts.
- the ends of the transverse struts are provided with a spacer.
- Fig. 1 shows in a perspective view of the mast 10 in a front view.
- the mast 10 has a provided with a pair of tines load support means 12 and three nested mast frames 14, 16, 18.
- the outer mast frame 14 carries the central mast frame 16 lying in the middle and the mast frame 18 is formed as an inner mast.
- the load supporting means 12 is adjustable in height along the inner mast.
- the outer mast 14 is formed laterally with a projecting bearing pin 20 which cooperates with a mast holder (not shown).
- the load supporting means 12 is moved along the inner mast via the free-lifting cylinder 22.
- the free-lifting cylinder 22 has a sprocket 24, over which a lifting chain 26 runs.
- the Freihubzylinders 22 is the Sprocket 24 is raised and the load supporting means 12 moves along the inner mast 18 in its height.
- the total acting on the mast forces are introduced via the load supporting means 12 and the mast frame in the outer mast. About the mast holder, which cooperates with the protruding pin 20, these forces are then introduced into the vehicle.
- Fig. 3 shows the outer mast 14 with its rails 28, 30.
- the rails 28, 30 are connected by cross braces 32 and a head portion 34 together.
- the head portion 34 has, as in Fig. 4 shown, two laterally extending cheeks 36 which are interconnected via two cross members 38, 40.
- each of the profile rails 28, 30 is equipped with a connecting plate 42, 44.
- the connecting plates 44 and 42 are approximately aligned with the outer edge 46, 48 of the respective rail 28, 30.
- the inner edges 50, 52 of the connecting plates 42 and 44 project inwardly into the space between the rails 28, 30.
- the connecting plates 42 and 44 are respectively welded to the rails 28 and 30 on the side facing away from the load supporting means.
- Between the connecting plates 44, 42 a cross member 54 is arranged.
- the cross member 54 is welded at its ends, in shock, in each case with the edges 50, 52 of the connecting plates.
- the connecting plates 42, 44 components along their edge on impact, ie without overlap, welded together.
- the connecting plates 42, 44 each have a triangular section 56, 58.
- the triangular tips 56, 58 are defined by the rear links 60, 62 as in FIG Fig. 4 represented, hidden. In Fig. 3 the triangular tips are indicated by dot-dash lines for a better overview.
- the triangular areas 56, 58 begin immediately above the cross member 54.
- the backs 60, 62 are connected to the connecting plate.
- the triangular shape of the connecting plates causes the flat connection between the rear 60 and connecting plate 42 after a first contact point 64 initially increases steadily before there is a full-surface connection of the rear pull with the connecting plate. Likewise the connection to the profile rail.
- a further cross member 66 is provided, which is not connected via the connecting plates with the rails 28, 30, but is directly connected thereto.
- the connection of the rear trains 60, 62 takes place not only via the connecting plates 42, 44, but in addition via the cross struts 32.
- the cross struts 32 have at their ends a spacer 66.
- the cross member 32 each has a widened end 33 which is provided with a trough-shaped recess 35. The recess 35 is partially contaminated by the spacer 66.
- the cross member 32 is connected to each rail of the outer mast in two areas and the spacer 66 with the respective rear train 60, 62. In this case, the connection of the spacer 66 is located between the connecting portions of the cross member 32 with the rail. In this way, the rear trains 60, 62 are guided at a defined distance from the profile rails. It is expedient if the thickness of cross member 32 and spacer 66 and the thickness of the connecting plates 42, 44 corresponds.
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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)
- Support Devices For Sliding Doors (AREA)
Description
Die vorliegende Erfindung betrifft ein Hubgerüst für ein Flurförderzeug, insbesondere für einen Schubmaststapler. Das Hubgerüst besitzt ein Lasttragmittel und drei Mastrahmen, die jeweils über mindestens zwei Querträger miteinander verbundene Profilschienen aufweisen. Die Mastrahmen sind mindestens teilweise ineinander angeordnet, so dass sie als ein Innenmast, ein Mittelmast und ein Außenmast ausgebildet sind. Der Innenmast stützt sich in dem Mittelmast und der Mittelmast stützt sich in dem Außenmast ab. Der Außenmast wird über einen Masthalter an dem Fahrzeug gehalten. Bei einem Schubmaststapler ist der Masthalter in Fahrzeuglängsrichtung verschieblich angeordnet.The present invention relates to a mast for an industrial truck, in particular for a reach truck. The mast has a load supporting means and three mast frames, each having at least two cross members interconnected rails. The mast frames are at least partially arranged inside each other so that they are formed as an inner mast, a center mast and an outer mast. The inner mast is supported in the center mast and the center mast is supported in the outer mast. The outer mast is held by a mast holder on the vehicle. In a reach truck, the mast holder is arranged displaceably in the vehicle longitudinal direction.
Hubgerüste mit drei Mastrahmen sind hinlänglich bekannt. So beschreibt
Aus
Aus
Um Hubgerüste auch in großer Höhe noch mit einer akzeptablen Last beladen zu können, muss das Hubgerüst versteift werden. Auch muss sichergestellt sein, dass beim Einleiten der Kräfte in den Masthalter ein möglichst gleichmäßiger Kraftfluss ohne Kraft- und Spannungsspitzen vorliegt.In order to be able to load masts even at high altitudes with an acceptable load, the mast must be stiffened. It must also be ensured that, when the forces are introduced into the mast holder, there is a flow of force that is as uniform as possible without force and voltage peaks.
Der Erfindung liegt die Aufgabe zugrunde, ein Hubgerüst bereitzustellen, das auch bei großen Hubhöhen große Lasten stabil aufnehmen kann und zugleich über eine kompakte Bauweise verfügt.The invention has for its object to provide a mast, which can accommodate large loads stable even at high lifting heights and at the same time has a compact design.
Erfindungsgemäß wir die Aufgabe durch ein Hubgerüst mit den Merkmalen aus Anspruch 1 gelöst. Vorteilhafte Ausgestaltungen bilden den Gegenstand der Unteransprüche.According to the invention, we achieved the object by a mast with the features of claim 1. Advantageous embodiments form the subject of the dependent claims.
Das erfindungsgemäße Hubgerüst ist vorgesehen und bestimmt für ein Flurförderzeug, insbesondere für einen Schubmaststapler. Das Hubgerüst ist mit einem Lasttragmittel und drei Mastrahmen ausgestattet, die jeweils zwei über mindestens zwei Querträger miteinander verbundene Profilschienen aufweisen. Die Mastrahmen sind als ein Innenmast, ein Mittelmast und ein Außenmast ausgebildet, von denen sich der Innenmast in dem Mittelmast und dieser in dem Außenmast abstützt. Der Außenmast ist ausgebildet, um in einem Masthalter gehalten zu werden. Erfindungsgemäß ist jede Profilschiene des Außenmasts auf ihrer von dem Lasttragmittel fortweisenden Seite mit einer Verbindungsplatte und einem Hinterzug versehen. Jeder Hinterzug erstreckt sich entlang der Profilschiene und ist an seinem unteren, zum Masthalter weisenden Ende mit der entsprechenden Verbindungsplatte der Profilschiene verbunden. Das obere Ende des Hinterzugs erstreckt sich bevorzugt bis zum oberen Ende des Außenmastes. Ein Querträger ist zwischen den Verbindungsplatten angeordnet. Bei der erfindungsgemäßen Ausgestaltung des Außenmastes ist für jede der Profilschienen ein Hinterzug vorgesehen, der entlang der Profilschiene und beabstandet von dieser läuft. Der Hinterzug ist an seinem zum Masthalter weisenden Ende an der Verbindungsplatte angeordnet und mit dieser verbunden. Der im Bereich des Masthalters vorgesehene Querträger, der die zwischen den Profilschienen angreifenden Querkräfte aufnimmt, ist ebenfalls über die Verbindungsplatten mit den Profilschienen verbunden. Im Bereich des Masthalters werden also sowohl die durch den Hinterzug des Außenmastes weitergeleiteten Kräfte als auch die zwischen den Profilschienen wirkenden Querkräfte über die Verbindungsplatten in die Profilschienen eingeleitet. Erfindungsgemäß erfolgt die Anbindung der kraftleitenden Komponenten an die Profilschiene über die Verbindungsplatte.The mast according to the invention is provided and intended for an industrial truck, in particular for a reach truck. The mast is equipped with a load support and three mast frames, each having two interconnected via at least two cross members rails. The mast frames are formed as an inner mast, a center mast and an outer mast, of which the inner mast is supported in the center mast and this in the outer mast. The outer mast is designed to be held in a mast holder. According to the invention, each rail of the outer mast is provided on its side facing away from the load bearing means with a connecting plate and a rear pull. Each rear pull extends along the profile rail and is connected at its lower, pointing to the mast holder end with the corresponding connection plate of the rail. The upper end of the rear pull preferably extends to the upper end of the outer mast. A cross member is disposed between the connection plates. In the embodiment of the outer mast according to the invention a pull-back is provided for each of the rails, which runs along the rail and spaced from this. The pull-out is arranged at its end facing the mast holder on the connecting plate and connected thereto. The provided in the mast holder cross member, which receives the transverse forces acting between the rails, is also connected via the connecting plates with the rails. In the area of Mast holder so both the forwarded by the pull of the outer mast forces and the transverse forces acting between the rails are introduced via the connecting plates in the rails. According to the invention, the connection of the force-conducting components to the rail via the connection plate.
Erfindungsgemäß besitzt jede der Verbindungsplatten eine größere Breite als die Profilschiene des Außenmastes, wobei die Verbindungsplatten sich in den Bereich zwischen den Profilschienen erstrecken. Die Verbindungsplatten sind jeweils breiter als die Profilschienen des Außenmastes an der von dem Lasttragmittel fortweisenden Seite. Zudem sind die Profilschienen so an dem Außenmast angeordnet, dass diese in den Bereich zwischen den Profilschienen des Außenmastes vorstehen. Je nach Ausgestaltung können dabei die Verbindungsplatten seitlich, nach außen über die Profilschienen vorstehen oder bündig mit den Profilschienen an deren Außenseiten abschließen.According to the invention, each of the connection plates has a greater width than the profile rail of the outer mast, wherein the connection plates extend into the region between the profile rails. The connecting plates are each wider than the profile rails of the outer mast on the side facing away from the load supporting means. In addition, the rails are arranged on the outer mast that they project into the area between the rails of the outer mast. Depending on the configuration, the connecting plates can protrude laterally outward beyond the profiled rails or can be flush with the profiled rails on their outer sides.
In einer bevorzugten Ausgestaltung des erfindungsgemäßen Hubgerüsts ist der Querträger zwischen Verbindungsplatten und dem Hinterzug in einer gemeinsamen Höhe mit den Verbindungsplatten verbunden. Auf diese Weise werden räumlich weit voneinander beabstandete Einleitpunkte für die angreifenden Kräfte vermieden und es erfolgt in räumlicher kompakter Art und Weise die Einleitung der an dem Außenmast angreifenden Kräfte. Die Einleitung der Kräfte aus jedem der Hinterzüge in die Verbindungsplatte wird unterstützt, indem jeder der Hinterzüge mit einer Flachseite und insbesondere mit seiner größten Flachseite mit der zugehörigen Verbindungsplatte verbunden ist.In a preferred embodiment of the mast according to the invention, the cross member between connecting plates and the rear train is connected in a common height with the connecting plates. In this way, spatially widely spaced introduction points for the attacking forces are avoided and it takes place in a spatially compact manner, the introduction of the forces acting on the outer mast forces. The introduction of the forces from each of the rear links into the connecting plate is assisted by connecting each of the rear links with a flat side and in particular with its largest flat side with the associated connecting plate.
In einer bevorzugten Weiterbildung verjüngt sich jede der Verbindungsplatten an ihrem zum Hinterzug weisenden Ende in ihrer Breite. Das zum Hinterzug weisende Ende der Verbindungsplatte ist das nach oben weisende Ende der Verbindungsplatte. Die Breite bezieht sich hierbei auf die von den Profilschienen des Außenmastes aufgespannte Ebene. Das sich verjüngende Ende der Verbindungsplatte bewirkt, dass die Fläche, mit der die Verbindungsplatte mit der Profilschiene des Außenmastes verbunden ist, entlang der Verbindungsplatte abnimmt. In einem nicht verjüngten Bereich kann die Kraft über die gesamte Breite der Verbindungsplatte bzw. über die gesamte Breite der Profilschiene in die Verbindungsplatte eingeleitet werden, im verjüngten Bereich der Verbindungsplatte steht nur der mit der Profilschiene verbundene Bereich der Verbindungsplatte für das Einleiten der Kraft zur Verfügung. Hierdurch wird ein gleichmäßiger Kraftfluss bewirkt, mit dem Kraft- und Spannungsspitzen an dem Außenmast vermieden werden können.In a preferred embodiment, each of the connecting plates tapers at its end pointing to the rear end in its width. The pointing to the rear End of the connecting plate is the upward-facing end of the connecting plate. The width here refers to the plane spanned by the rails of the outer mast. The tapered end of the connection plate causes the surface with which the connection plate is connected to the profile rail of the outer mast to decrease along the connection plate. In a non-tapered region, the force over the entire width of the connecting plate or over the entire width of the rail can be introduced into the connecting plate, in the tapered region of the connecting plate is only connected to the rail portion of the connecting plate for the introduction of the force available , As a result, a uniform force flow is effected, can be avoided with the force and voltage peaks on the outer mast.
In einer bevorzugten Weiterbildung ist das zum Hinterzug weisende Ende der Verbindungsplatte mit einer dreieckigen Form ausgebildet. Bei der dreieckigen Form trifft der von oben kommende Hinterzug zunächst auf einen sehr schmalen Bereich der Verbindungsplatte im Bereich einer Spitze des Dreiecks. Mit zunehmender Verbreiterung des Dreiecks nimmt die Verbindungsfläche zwischen Hinterzug und Verbindungsplatte in Richtung nach unten auf die Querstrebe stetig zu. In einer bevorzugten Ausgestaltung fällt eine Kante des Hinterzugs mit einer Kante der Verbindungsplatte zusammen, wobei der mit der Verbindungsplatte verbundene Hinterzug zu seinem Ende hin über die gesamte Breite mit der Verbindungsplatte verbunden ist.In a preferred development, the rear end of the connecting plate is formed with a triangular shape. In the case of the triangular shape, the pull from above initially strikes a very narrow area of the connecting plate in the region of a tip of the triangle. With increasing broadening of the triangle, the connecting surface between the rear draw and connecting plate in the direction down to the crossbar steadily increases. In a preferred embodiment, an edge of the rear strip coincides with an edge of the connecting plate, wherein the rear strip connected to the connecting plate is connected to its end over its entire width with the connecting plate.
In einer bevorzugten Ausgestaltung sind oberhalb der Verbindungsplatten angeordnete Querstreben mit ihren Enden jeweils zwischen Hinterzug und Profilschiene angeordnet. Dies bedeutet, dass bei den Querstreben die Verbindung des Hinterzugs an der Rückseite der Profilschiene über die Querstreben erfolgt. In einer bevorzugten Ausgestaltung sind die Enden der Querstreben mit einem Distanzstück versehen.In a preferred embodiment, arranged above the connecting plates transverse struts are each arranged with their ends between the rear train and rail. This means that in the cross struts, the connection of the rear pull on the back of the rail via the cross struts. In In a preferred embodiment, the ends of the transverse struts are provided with a spacer.
Ein bevorzugtes Ausführungsbeispiel des erfindungsgemäßen Hubgerüsts wird anhand der nachfolgenden Figuren erläutert. Es zeigen:
- Fig. 1
- ein Hubgerüst in einem ausgefahrenen Zustand in einer perspektivischen Ansicht von schräg vorne,
- Fig. 2
- das Hubgerüst aus
Fig. 1 in angehobener Position, - Fig. 3
- den Außenmast in einer Ansicht von hinten,
- Fig. 4
- den Außenmast in einer perspektivischen Ansicht von schräg hinten, und
- Fig. 5
- eine Querstrebe des Außenmastes in einer perspektivischen Ansicht.
- Fig. 1
- a mast in an extended state in a perspective view obliquely from the front,
- Fig. 2
- the mast out
Fig. 1 in raised position, - Fig. 3
- the outer mast in a view from behind,
- Fig. 4
- the outer mast in a perspective view obliquely from behind, and
- Fig. 5
- a cross strut of the outer mast in a perspective view.
Die insgesamt an dem Hubgerüst angreifenden Kräfte werden über das Lasttragmittel 12 und die Mastrahmen in den Außenmast eingeleitet. Über den Masthalter, der mit dem vorstehenden Zapfen 20 zusammenwirkt, werden diese Kräfte dann in das Fahrzeug eingeleitet.The total acting on the mast forces are introduced via the
Im Bereich des Zapfens 20 für den Masthalter ist jede der Profilschienen 28, 30 mit einer Verbindungsplatte 42, 44 ausgestattet. Wie in
Die Verbindungsplatten 42, 44 besitzen jeweils einen dreieckigen Bereich 56, 58. Die dreieckigen Spitzen 56, 58 sind durch die Hinterzüge 60, 62, wie in
Unterhalb der Verbindungsplatten 42, 44 ist ein weiterer Querträger 66 vorgesehen, der allerdings nicht über die Verbindungsplatten mit den Profilschienen 28, 30 verbunden ist, sondern direkt mit diesen verbunden ist.Below the connecting
Die Anbindung der Hinterzüge 60, 62 erfolgt nicht nur über die Verbindungsplatten 42, 44, sondern zusätzlich über die Querstreben 32. Die Querstreben 32 besitzen an ihren Enden ein Distanzstück 66. Wie in
Claims (7)
- A mast for an industrial truck, for a reach truck in particular, with a load carrying means and three mast frames, each of them having at least two profile rails connected to each other via at least two crossbeams, wherein the mast frames are realised as an inner mast (18), a central mast (16) and an outer mast (14), from which the inner mast (18) is supported in the central mast (16) and the latter in the outer mast (14), wherein each profile rail (28, 30) of the outer mast (14) is provided with a connection plate (42, 44) and a rear section reinforcement (60, 62) on the side facing away from the load carrying means (12), wherein each rear section reinforcement (60, 62) is connected to the corresponding connection plate (42, 44) at one end, and a crossbeam (54) is arranged between the connection plates,
characterised in that
each connection plate (42, 44) has a larger width than the profile rail (28, 30) of the outer mast (14), wherein the connection plates (42, 44) extend in the region between the profile rails (28, 30). - The mast according to claim 1, characterised in that the crossbeam (54) and the rear section reinforcements (60, 62) are connected at a common height with the connection plate (42, 44).
- A mast according to claim 1 or 2, characterised in that each connection plate (42, 44) tapers in its width at the end facing the rear section reinforcement.
- A mast according to any one of claims 1 to 3, characterised in that the end of each of the connection plates (42, 44) facing one of the rear section reinforcements (60, 62) changes to a triangular shape (56, 58).
- The mast according to claim 4, characterised in that one edge of the rear section reinforcement coincides with one edge of the connection plate, and the rear section reinforcement is connected towards its end with the connection plate over its entire width.
- A mast according to any one of claims 1 to 5, characterised in that the cross braces (32) arranged above the connection plate (42, 44) are each arranged between the rear section reinforcement and the profile rails with their ends.
- The mast according to claim 6, characterised in that each cross brace (32) has a superimposed spacer (66) at its ends, by which the cross brace is arranged between the rear section reinforcement and the profile rail.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013004434.0A DE102013004434A1 (en) | 2013-03-15 | 2013-03-15 | Mast for a truck |
PCT/EP2014/054243 WO2014139843A1 (en) | 2013-03-15 | 2014-03-05 | Mast assembly for an industrial truck |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2969891A1 EP2969891A1 (en) | 2016-01-20 |
EP2969891B1 true EP2969891B1 (en) | 2018-01-03 |
Family
ID=50231167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14708023.8A Active EP2969891B1 (en) | 2013-03-15 | 2014-03-05 | Mast assembly for an industrial truck |
Country Status (4)
Country | Link |
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EP (1) | EP2969891B1 (en) |
CN (1) | CN105246820B (en) |
DE (1) | DE102013004434A1 (en) |
WO (1) | WO2014139843A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104355271B (en) * | 2014-10-23 | 2017-01-25 | 安徽合力股份有限公司 | Hoisting system capable of implementing high hoisting of reach truck |
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DE7712146U1 (en) * | 1977-04-19 | 1978-02-09 | Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg | OPEN LIFTING FRAME |
DE3041910C2 (en) * | 1980-11-06 | 1986-01-23 | Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg | Mast for lifters |
US5326217A (en) * | 1990-09-24 | 1994-07-05 | Clark Material Handling Company | Lift truck with negative drop upright |
JP3355965B2 (en) * | 1996-11-22 | 2002-12-09 | 日産自動車株式会社 | Mast device for forklift truck |
JP3325552B2 (en) * | 2000-03-08 | 2002-09-17 | ティー・シー・エム株式会社 | Mast structure |
JP2004284761A (en) * | 2003-03-24 | 2004-10-14 | Komatsu Forklift Co Ltd | Outer mast lower stay device |
US7096999B2 (en) | 2003-08-05 | 2006-08-29 | The Raymond Corporation | Mast construction for a lift truck |
JP5233218B2 (en) * | 2007-09-20 | 2013-07-10 | 株式会社豊田自動織機 | Mast device in forklift |
CN202594724U (en) * | 2012-02-29 | 2012-12-12 | 台励福机器设备(青岛)有限公司 | Three-section wide-view mast assembly device for forklift |
-
2013
- 2013-03-15 DE DE102013004434.0A patent/DE102013004434A1/en not_active Withdrawn
-
2014
- 2014-03-05 CN CN201480013448.5A patent/CN105246820B/en active Active
- 2014-03-05 EP EP14708023.8A patent/EP2969891B1/en active Active
- 2014-03-05 WO PCT/EP2014/054243 patent/WO2014139843A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP2969891A1 (en) | 2016-01-20 |
CN105246820B (en) | 2018-08-03 |
DE102013004434A1 (en) | 2014-09-18 |
CN105246820A (en) | 2016-01-13 |
WO2014139843A1 (en) | 2014-09-18 |
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