EP1627846B1 - Chariot élévateurun avec un champ de vision agrandi - Google Patents

Chariot élévateurun avec un champ de vision agrandi Download PDF

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Publication number
EP1627846B1
EP1627846B1 EP05017917A EP05017917A EP1627846B1 EP 1627846 B1 EP1627846 B1 EP 1627846B1 EP 05017917 A EP05017917 A EP 05017917A EP 05017917 A EP05017917 A EP 05017917A EP 1627846 B1 EP1627846 B1 EP 1627846B1
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EP
European Patent Office
Prior art keywords
deflection
piston
cable
industrial truck
lifting
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.)
Not-in-force
Application number
EP05017917A
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German (de)
English (en)
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EP1627846A2 (fr
EP1627846A3 (fr
Inventor
Carsten Dipl.-Ing. Schöttke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jungheinrich AG
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Jungheinrich AG
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Publication date
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Publication of EP1627846A2 publication Critical patent/EP1627846A2/fr
Publication of EP1627846A3 publication Critical patent/EP1627846A3/fr
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Publication of EP1627846B1 publication Critical patent/EP1627846B1/fr
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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
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems
    • 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 industrial trucks with the features of the preamble of claim 1 or of claim 2 in general and in particular relates to industrial trucks with a displaceable together with the load-receiving means driver's seat carrier.
  • the mast comprises a truck frame fixed lifting stand and a guided on Hubmenr and adjustable relative to this in the longitudinal direction of the first lifting frame.
  • At least one piston-cylinder unit is provided as a drive for the displacement of the load-receiving means, wherein the piston is connected to two deflection rollers for deflecting the force applied by the piston-cylinder unit and wherein the deflection rollers are in the longitudinal extension region of the piston-cylinder unit.
  • the driver's seat is at the industrial trucks GB 2 046 705 A stationary with respect to the lifting stand.
  • the solution of the problem underlying the invention relates to the management of cables on the truck, in particular of a cable with which control commands from a control panel, such as a driver station carrier, can be transmitted to a control unit on the truck frame. It should not be ruled out that more signals or drive energy can be transmitted in both directions via such a cable.
  • the leadership of such cables is particularly important for industrial trucks with movable, in particular lift and lowerable driver station carrier of great importance, since in this case changes in operation, the distance between the control panel or the driver's seat carrier and the frame-fixed control unit.
  • the present invention relates to an industrial truck with a load-carrying means displaceably supporting mast, which comprises a truck frame fixed lifting stand and at least one guided on Hubmenr and adjustable relative to this in the longitudinal direction lifting frame, wherein a cable for transmitting control signals between a truck frame fixed control unit and a control unit runs, which is provided on a on the lifting frame relative to this movably guided driver's seat carrier.
  • control cable is so far the last time at an upper end cross bar of a driver's seat carrier adjustable stored Huburers down, d. H. towards the footprint of the truck, led to the driver's seat carrier. Therefore, the cable penetrates part of the field of vision of the driver.
  • the driver's field of vision can be largely kept free of this cable, if the power transmission means deflection is provided so that the cable starting from its end frame fixed end up to a first cable deflection on the HubInstitutr, from there down to a second Jardinumlenkstelle on the lifting frame and from there up to the driver's seat carrier runs.
  • the same inventive idea is also applicable to an industrial truck with a mast from a lifting stand and two movably guided lifting frame, more precisely to an industrial truck with a lifting device carrying a lifting mast, which is a truck frame fixed lifting stand, a first guided on Hubmenr and relative to this in the longitudinal direction comprises adjustable lifting frame and a second lifting frame, which is guided on the first lifting frame relative to this for movement substantially in Hubstanderlteilsraum, wherein a cable for transmitting control signals between a truck frame fixed control unit and an operating unit, which at one of the second lifting frame relative to this is provided in the Hubêtrlteilsraum movably guided driver's seat carrier.
  • the cable can be arranged in an advantageous manner without significant field of view impairment of the driver when the cable, starting from its end of the truck frame solid up to a first cable deflection on the lift stand, from there down to a second Jardinumlenkstelle on the first lifting frame and from there upwards to a third deflection point on a motion in a fixed movement relative to the driver space carrier moving movement part and from there to the driver place carrier runs.
  • trucks with lift stand, a lifting frame and a movable frame on the lifting frame driver carrier are designed such that the movement of the driver station carrier has a fixed movement relationship to the movement of the lifting frame. This is often 2: 1, so that the cable can be deflected at each deflection by 180 °, which allows a meandering placement of the cable in a very small space.
  • This movement relationship is realized by selecting appropriate dimensioning of the piston surfaces of the respective components for movement driving piston-cylinder units.
  • the different piston-cylinder units are fluidly connected in parallel, so that the same fluid pressure in the different piston-cylinder units leads to different forces.
  • the driver's seat carrier can be guided by the second lifting frame in a very advantageous manner independent of movement, d. H. the vehicle carrier is displaceable independently of the movement of the lifting frame.
  • the movements of the lifting frame relative to the lifting stand generally have a fixed movement relationship. This is often 2: 1, so that the first and second lifting frame are always adjusted simultaneously, the second lifting frame compared with the first travels the double displacement path. This also makes 180 ° deflections of the cable at the respective deflection points possible, so that the retained cable length can be provided in a meandering manner in a very small volume of construction.
  • these deflection points should be arranged in such a way that the first deflection point is located above the second deflection point relative to the lifting support footprint when the lifting frame is fully extended relative to the lifting stand.
  • the concrete arrangement of the deflection is freely selectable.
  • the second deflection point is arranged as far as possible at the (first) lifting frame, preferably below the longitudinal center of the (first) lifting frame, more preferably below the upper 75% of the total length of the (first) lifting frame or even better below the upper 85%. the total length of the (first) lifting frame. It should also not be ruled out that the second deflection point is placed at the bottom of the (first) lifting frame, d. H. that it is located outside and below the actual longitudinal extent of the (first) lifting frame.
  • the deflection point can therefore be arranged on any element of the designated component or on a rigidly connected to the designated component element, such as a carrier.
  • the third deflection point is always located above the second deflection point.
  • the movement part carrying the third deflection point is part of a piston-cylinder unit driving the driver's seat carrier relative to the second lifting frame for movement, more preferably the piston movable relative to a cylinder fixed on the second lifting frame.
  • a piston-cylinder unit driving the driver's seat carrier By means of the deflection determined by the movement relationship of the movement of a moving part, preferably a piston, the driver's seat carrier driving piston-cylinder unit for moving the driver's seat carrier can easily be calculated in advance, the required cable requirements and the cable is always kept taut during operation.
  • a compact, the field of view of a truck driver little impairing construction is obtained when the moving part of the fixed relative to a cylinder on the second lifting frame cylinder movable piston of the piston-cylinder unit, to which a power transmission deflection with at least one of the below in connection with a feature described power transmission means deflection means is provided.
  • the cable deflection axis of the third cable deflection point to the deflection axis of the power transmission means deflection means is substantially parallel, preferably collinear. Due to the parallelism, it can be ensured that the cable is only subjected to tension during a movement of the piston, d. H. no shear forces occur.
  • the cable deflection means and the power transmission means deflection means may for example be rotatably mounted on a common axis of rotation, which keeps the required number of components low.
  • strain relief is provided on at least one longitudinal end, preferably on both longitudinal ends of the cable.
  • a further strain relief of the cable can be provided between two successive Jardinumlenkstellen to prevent excessive acting on the cable tensile stresses.
  • This strain relief between two deflection is especially useful when using a flat cable, as this may need to be rotated between two deflection points around its longitudinal axis. An increase in the load imposed by the twisting of the cable due to tensile stress with simultaneous twist-fixing of the cable can be prevented or at least mitigated by this strain relief. Such a rotation of a flat cable may be necessary in particular between the second and the third deflection point.
  • the strain relief for example, be designed constructively such that the cable is held ruffled between two connected by at least one tension spring clamping points. If a tensile stress then occurs on the cable, the cable section gathered between the clamping points is stretched against the force of the at least one spring, so that to a certain extent a stretching reserve for the cable is provided and a cable break can thus be prevented.
  • At least one Jardinumlenkstelle preferably at all Jardinumlenkstellen, a Jardinumlenkrolle.
  • the cable can roll off almost without slippage, so that during the deflection hardly any wear occurs.
  • an inventive truck in which further on the second lifting frame a cylinder of a piston-cylinder unit is set and the movable relative to this movable piston movement transmitting with a second lifting frame relative to this substantially in Hubêtrlteilsplatz guided driver station carrier is coupled, wherein a working fluid conveying flexible working fluid line between a truck frame fixed fluid delivery unit and the cylinder extends.
  • the field of view of the truck driver can be kept substantially free from the interference of the flexible working fluid line, if the working fluid line starting from its end of the truck frame solid up to a first line deflection on the HubInstitutr, from there down to a second line deflection point on the first Lifting frame and from there to the cylinder runs.
  • a particularly favorable in terms of the field of view because the field of view hardly interfering arrangement of cable and working fluid line is obtained when the mast at least two mutually parallel substantially extending in mast longitudinal direction column assemblies, the cable in the region of a column assembly and the working fluid line in the range of another Column arrangement, preferably viewed from the truck driver from at least partially covered by the respective column arrangements, are arranged.
  • only the cable or only the working fluid line viewed at least in sections from the truck driver be arranged concealed by at least one column assembly of the mast.
  • An advantageous development of the present invention relates to an inventive truck with a load receiving means displaceably carrying load transfer means, wherein the truck as a drive for a displacement of the load receiving means comprises a piston-cylinder unit which comprises as components a retractable from a cylinder and retractable into these pistons , wherein for the force transmission of a force from the piston-cylinder unit to a movable member of the load transfer means or on the load receiving means itself a flexible Provided power transmission means and the deflection of which at least one of the power transmission means about a deflection deflecting force transmission means deflection means with one of the components: piston and cylinder, is connected.
  • a longitudinal end of the flexible power transmission means is fixed to the piston-cylinder unit supporting component of the truck, while the respective other longitudinal end of the flexible power transmission means is fixed to a relative to the piston-cylinder unit supporting member movable further component. Then, a relative movement of the piston and cylinder of the piston-cylinder unit leads to a depending on the type of deflection, about the amount of deflection, translated movement of the other component relative to the movement of the deflecting means supporting member of the piston-cylinder unit.
  • Example a piston-cylinder unit, in which at the free longitudinal end of the piston rod, a so-called head piece is mounted, arranged by which deflection rollers for deflecting lamella chains in the longitudinal direction of the piston-cylinder unit of the piston-cylinder unit with distance are, wherein the known Kettenumlenkrollen are rotatable about an orthogonal to the piston-cylinder unit deflection axis.
  • Such known assemblies of piston-cylinder unit and head piece therefore have a length extended by the diameter of the deflection rollers and a portion of their bearing means overall length, so that the piston-cylinder unit projects with the deflection rollers with greater probability in the field of view of a truck driver.
  • the development of the present invention described below aims to remove as far as possible flexible power transmission means and their deflection means from the driver's field of vision.
  • the deflection means for a force transmission means for transmitting a force from the piston-cylinder unit to a movable component of the load displacement means is provided such that at least a portion of the deflection means is in the longitudinal extension region of the piston-cylinder unit to increase the driver's field of view.
  • a section of the deflection means should be considered as lying in the longitudinal extension region when an imaginary radial beam orthogonal to the longitudinal axis of the piston-cylinder unit starts from the longitudinal axis both the piston or the cylinder of the piston-cylinder unit and the cylinder Passed through section of the deflection or at least touched.
  • the piston-cylinder unit may be intended as a radially infinitely extended geometric cylinder, wherein according to the basic idea of the first aspect of the present invention, at least a portion of the deflection means projects into the imaginary cylinder.
  • the entire deflection means is arranged in the longitudinal extension region of the piston-cylinder unit.
  • the deflection can be arranged to achieve the shortest possible overall length of the assembly of piston-cylinder unit and the deflection such that in the direction of the piston-cylinder unit out extended imaginary deflection axis of the power transmission means deflection means the piston-cylinder unit crosses or cuts.
  • cutting is meant that the piston-cylinder unit extended towards imaginary deflection axis penetrates a component of the piston-cylinder unit, such as the piston and / or the cylinder, or at least touched.
  • crossing it is meant that the deflecting axis, which has been extended to the piston-cylinder unit, passes the piston-cylinder unit at a distance orthogonal to the longitudinal axis of the piston-cylinder unit without penetrating the latter, a projection of which extends imaginary deflection axis in a projection direction orthogonal to the deflection axis and orthogonal to the longitudinal axis of the piston-cylinder unit, a projection of the piston-cylinder unit in the same projection direction intersects.
  • the at least one deflection means is provided such that the deflection axis is substantially orthogonal to the longitudinal axis of the piston-cylinder unit. Since the piston is movable relative to the cylinder along said longitudinal axis, it can be ensured by a deflection axis orthogonal to the longitudinal axis of the piston-cylinder unit that the flexible force transmission means can run parallel to the longitudinal axis of the piston-cylinder unit, so that one possible a large proportion of the force supplied by the piston-cylinder unit is transferable by the power transmission means as a pulling force on the associated with this movable component of the truck.
  • An easily assembled assembly of piston-cylinder unit and power transmission deflection means can be obtained by providing a head piece with holding means for supporting the power transmission means deflection means at the free longitudinal end of the piston protruding from the cylinder. It is ensured in orthogonal course of the deflection axis with respect to the longitudinal axis of the piston-cylinder unit that the deflection only slightly over the length of Piston-cylinder unit protrudes. If, for example, a chain deflection roller is used as the deflection means, in this arrangement the chain deflection roller protrudes at most with its half diameter in the longitudinal direction of the piston-cylinder unit over its entire length.
  • the deflection means is arranged such that the deflection axis is offset in the longitudinal direction of the piston-cylinder unit to the cylinder, so that only a very small part of the deflection extends beyond the free piston end or even more preferably the deflection completely within the longitudinal extent of Piston-cylinder unit is located.
  • the latter provides a very short assembly of piston-cylinder unit and deflection or head piece ready.
  • deflecting means holders project parallel to the longitudinal axis of the piston-cylinder unit towards the side of the cylinder.
  • Such Umlenkstoffitzhalterung can clamp the deflection axially on one side.
  • the deflection means is preferably held in the direction of the deflection axis at both axial ends, so that essentially tensile forces but no bending moments act on the holder of the deflection means.
  • At least two power transmission means deflection means are provided on two opposite sides of the piston-cylinder unit.
  • the at least two deflection means are arranged symmetrically with respect to the longitudinal axis of the piston-cylinder unit, so that the bearing forces to be absorbed by the holders of the respective deflection means are substantially equal and equidistant from the longitudinal axis, so that the piston-cylinder unit is not or hardly subjected to bending by the bearing forces.
  • the power transmission means may be a chain, such as a lamella chain. Such chains can be almost slip-free lead in complementary gears trained.
  • the power transmission means deflection means may be a Kettenumlenkrolle, possibly with teeth, in which case the axis of rotation of the Kettenumlenkrolle represents the deflection axis of the chain.
  • ropes as a flexible power transmission means for transmitting a force from a drive to a driven component of the load transfer means is conceivable.
  • Fig. 1 is an assembly of a piston-cylinder unit and a deflection means for power transmission means generally designated 10.
  • the assembly 10 is preferably provided on an industrial truck as a drive unit for a displacement of a movable component of a load transfer device.
  • the assembly 10 comprises a piston-cylinder unit 12 with one at a in Fig. 2 illustrated lifting frame 62 fixed cylinder 14 and a longitudinal axis L of the piston-cylinder unit 12 relative to the cylinder 14 movable piston 16.
  • the movability of the piston 16 is indicated by the extending in the longitudinal direction L double arrow V.
  • a generally designated 18 head piece is attached at the free protruding from the cylinder 14 longitudinal end 16a of the piston.
  • the headpiece 18 comprises a planar mounting plate 20 extending essentially orthogonal to the longitudinal axis L of the piston-cylinder unit 12, on which two holders 22 and 24 for chain deflection rollers 26 and 28 are arranged.
  • the brackets 22 and 24 are symmetrical to a longitudinal axis L containing and orthogonal to the plane of Fig. 1 oriented plane of symmetry arranged on opposite sides of the piston-cylinder unit 12. Since the holders 22 and 24 do not differ, only the holder 22 will be described below, this description also being applicable to the holder 24.
  • the chain guide pulley mount bracket 26 includes two substantially parallel discs 30 and 32 spaced apart a distance slightly greater than the axial dimension of the chain guide roller 26 to be positioned between the discs 30 and 32.
  • the substantially planar discs 30 and 32 are attached by welding, screwing, riveting and the like on a side facing toward the piston-cylinder unit 12 side 20 a of the mounting plate 20 and stand from this in each case substantially parallel to the longitudinal direction L of the piston-cylinder Unit 12 in the direction of the cylinder 14 down from.
  • Bolts 34 and 40 are substantially collinear, i. H. the longitudinal center axis M34 of the bolt 34 and the longitudinal center axis M40 of the bolt 40 lie substantially on a common straight line.
  • the longitudinal center axes M34 and M40 of the bolts 34 and 40 also form the deflection axes for the chains (not shown), which are deflected about the respective chain rollers 26 and 28, and the axes of rotation of the respective chain deflection rollers 26 and 28.
  • the piston 16 ends at its free longitudinal end 16 a flush with the surface 20 b of the mounting plate 20, so that in Fig. 1 It can easily be seen that the Kettenumlenkrollen 26 and 28 are arranged completely within the longitudinal extension region E of the piston-cylinder unit 12.
  • Fig. 2 is an inventive material handling vehicle, which realizes all three aspects of the present invention, generally designated 50.
  • Fig. 1 designated components are in Fig. 2 denoted by the same reference numerals.
  • the truck 50 has a wheels 52 and 54 movable on a substrate U truck body 56, which is constructed on a truck frame, not shown.
  • the drive unit for driving the truck 50 a hydraulic fluid reservoir, a hydraulic pump, a control device for controlling the truck drive and the hydraulic drive, a steering drive, which can also be controlled by a control device, and the like.
  • a mast 58 is mounted, which has a truck frame fixed lifting stand 60, one on the Hubmenr 60 in Direction of the double arrow V relative to this movably guided first lifting frame 62 and on the first lifting frame 62 also in the direction of the double arrow V relative to this movable second lifting frame 64 includes.
  • the first lifting frame 62 and the second lifting frame 64 are driven by not shown hydraulic piston-cylinder units for relative movement against each other.
  • the hydraulic piston-cylinder units are designed such that the second lifting frame 64 always covers the double actuating travel as the first lifting frame 62 with respect to the truck frame fixed lifting stand 60 in a lifting operation.
  • the previously described piston-cylinder unit 12 is fixed to the cylinder 14 on the second lifting frame 64.
  • On the second lifting frame 64 is in turn in the direction of the double arrow V in Fig. 2 not shown, in the direction of the Fig. 2 located in front of the mast 58 located driver seat carrier relative to this movable.
  • the piston-cylinder unit 12 forms the drive of the driver's seat carrier.
  • lamellae chains are firmly connected with their one longitudinal end to the second lifting frame 64 and with their respective other longitudinal end to the driver's seat carrier, wherein the extending between the longitudinal ends of the guide section is guided around the pulleys 26 and 28.
  • One pulley is used for each pulley. Due to the self-weight of the driver's seat carrier, the chain is always taut.
  • the driver's station carrier By extending the piston 16 out of the cylinder 14, the driver's station carrier can be raised and lowered accordingly by retracting the piston, the distance traveled by the driver's seat carrier being always twice the distance covered by the piston 16 due to the described chain ratio.
  • the main traversing direction of the industrial truck 50 is indicated by an arrow HV in FIG Fig. 2 characterized. It corresponds to the viewing direction of the viewer orthogonal to the plane of the drawing Fig. 2 , As in Fig. 2 it can be seen
  • the truck 50 has a particularly large field of view SB, which is limited to the right and left and up through the second lifting frame 64 and down substantially through the head piece 18.
  • This viewing area SB is essentially free of power transmission means, deflecting means, cables and hoses, so that the driver can see in the main traversing direction HV as far as possible.
  • a flat cable 66 which extends between the truck body 56 and the driver's seat carrier, not shown, exits at a point 68 from the truck body 56, for example, from a connector plugged into a corresponding socket on the truck.
  • the cable 66 is provided in a conventional manner with a strain relief 70.
  • the cable is clamped with two terminals 72 and 74, wherein the two terminals 62 and 74 are connected to tension springs 76.
  • the clamped between the terminals 72 and 74 cable length of the cable 66 is longer than the tension springs 76 in the relaxed state.
  • the cable 76 can be stressed against the force of the springs 76 with tensile force without the risk of cable breakage.
  • the cable 66 extends up to a first Jardinumlenkrolle 78, which is arranged on the lifting frame 60.
  • the arrangement can take place at a suitable location of the lifting frame.
  • the cable deflection roller 78 is arranged on a column arrangement 60 a of the lifting stand 60.
  • the cable 66 is located behind the mast 58 by the driver on the driver's seat carrier, so that it is concealed by the latter and does not impair the driver's view.
  • the cable 66 is deflected by almost 180 ° down to a second cable deflection roller 80 which is arranged rotatably about an axis 82 on the first lifting frame 62.
  • the second cable deflection roller 80 like the first cable deflection roller 78, can be arranged on a column arrangement 62 a of the first lifting frame 62. In the example shown, however, the second deflection roller is connected to a transverse strut 62b of the first lifting frame.
  • the ribbon cable to approach the third Jardinumlenkrolle 42 which already in connection with Fig. 1 has been described, is rotated about 90 ° about its longitudinal axis.
  • This rotation is fixed by means of a further strain relief device 84, which essentially corresponds to the strain relief device 70.
  • the in Fig. 2 lower terminal of the strain relief 84 attached to a cross member 64b of the second lifting frame 64, so that the 90 ° rotation of the ribbon cable is ensured.
  • a cable with a round, in particular circular cross-section the mechanical securing of the rotation by 90 ° would not be necessary, so that the second strain relief 84 does not need to be provided.
  • the axes of rotation of the first two Jardinumlenkrollen 78 and 80 are in Fig. 2 essentially parallel to one another and parallel to the plane of the drawing Fig. 2 shown. Although this is not absolutely necessary, in the use of ribbon cables to avoid unnecessary twisting of the cable about its longitudinal axis, a use of angular not to very divergent deflection axes advisable.
  • the said in connection with the cable 66 also applies to a hydraulic hose 86, which exits on the other side of the truck body 56 relative to a longitudinal center plane of the truck 50. After its exit from the truck body 56 of the hydraulic hose 86 extends up to a first Schlauchumlenkrolle 88. At this Schlauchumlenkrolle 88 of the hydraulic hose 86 is deflected by about 180 ° and then runs down to a second Schlauchumlenkrolle 90, from where he after another redirection 180 ° upward to a hydraulic oil port 92 of the hydraulic cylinder 14 of the piston-cylinder unit 12 extends.
  • the driver's seat carrier can only be moved along the second lifting frame 64, it is easy to see that a deflection of cables and hoses carried out in a lower region of the first lifting frame 62 always lies below the driver's seat carrier and thus always outside the field of vision of the driver.
  • the driver thus has a comparatively clear view in the main travel direction HV.

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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)
  • Chemical & Material Sciences (AREA)
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  • Forklifts And Lifting Vehicles (AREA)
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Claims (16)

  1. Chariot de manutention, comportant une structure de levage (58), qui supporte de manière mobile un moyen de réception de charge et qui comporte un support de levage (60), solidaire du châssis du chariot de manutention, et au moins un châssis de levage (62, 64), guidé sur le support de levage (60) et mobile par rapport à celui-ci dans la direction longitudinale (V) de celui-ci, un câble (66) pour la transmission de signaux de commande s'étendant entre une unité de commande, solidaire du chariot de manutention, et une unité de manoeuvre qui est prévue sur un poste de conduite, monté sur le châssis de levage (62, 64) de manière mobile par rapport à celui-ci,
    caractérisé en ce que le câble (66) s'étend à partir de son extrémité (68), solidaire du châssis du chariot de manutention, vers le haut vers un premier point de renvoi du câble (78) sur le support de levage (60), à partir de là vers le bas vers un deuxième point de renvoi du câble (80) sur le châssis de levage (62) et à partir de là vers le haut vers le poste de conduite.
  2. Chariot de manutention, comportant une structure de levage (58), qui supporte de manière mobile un moyen de réception de charge et qui comporte un support de levage (60), solidaire du châssis du chariot de manutention, un premier châssis de levage (62), guidé sur le support de levage (60) et déplaçable par rapport à celui-ci dans la direction longitudinale (V) de celui-ci, ainsi qu'un deuxième châssis de levage (64), qui est guidé sur le premier châssis de levage (62) pour effectuer par rapport à celui-ci un mouvement sensiblement dans la direction longitudinale (V) du support de levage, un câble (66) pour la transmission de signaux de commande s'étendant entre une unité de commande, solidaire du chariot de manutention, et une unité de manoeuvre qui est prévue sur un poste de conduite, monté sur le deuxième châssis de levage (64) de manière mobile par rapport à celui-ci sensiblement dans la direction longitudinale (V) du support de levage,
    caractérisé en ce que le câble (66) s'étend à partir de son extrémité (en 68), solidaire du châssis du chariot de manutention, vers le haut vers un premier point de renvoi du câble (78) sur le support de levage (60), à partir de là vers le bas vers un deuxième point de renvoi du câble (80) sur le premier châssis de levage (62) et à partir de là vers le haut vers un troisième point de renvoi (42) sur un élément mobile (16), se déplaçant dans un rapport de mouvement fixe par rapport au poste de conduite, et à partir de là vers le poste de conduite.
  3. Chariot de manutention selon la revendication 1 ou 2, caractérisé en ce que le premier point de renvoi (78) et le deuxième point de renvoi (80) sont prévus de telle sorte que le premier point de renvoi (78) est situé au-dessus du deuxième point de renvoi (80) lorsque le châssis de levage (62, 64) est complètement déployé par rapport au support de levage (60).
  4. Chariot de manutention selon la revendication 2, le cas échéant en intégrant la revendication 3, caractérisé en ce que le troisième point de renvoi (42) est toujours situé au-dessus du deuxième point de renvoi (80).
  5. Chariot de manutention selon la revendication 2, le cas échéant en intégrant la revendication 3 ou 4, caractérisé en ce que l'élément mobile (16) est un élément d'une unité à cylindre et piston (12), actionnant le poste de conduite pour un mouvement par rapport au deuxième châssis de levage (64), cet élément étant de préférence le piston (16) de l'unité à cylindre et piston (12), lequel est mobile par rapport à un cylindre (14) fixé sur le deuxième châssis de levage (64).
  6. Chariot de manutention selon l'une des revendications 1 à 5, caractérisé en ce que, entre deux points de renvoi (80, 42), de préférence entre le deuxième (80) et le troisième point de renvoi (42), est prévu un élément de décharge de traction (84) du câble (66), en particulier lorsque le câble (66) est un câble plat.
  7. Chariot de manutention selon l'une des revendications 1 à 6, caractérisé en ce qu'il est prévu une poulie de renvoi (78, 80, 42) du câble au niveau d'au moins un, de préférence au niveau de tous les points de renvoi (78, 80, 42).
  8. Chariot de manutention selon l'une des revendications 1 à 7, caractérisé en ce qu'il comporte un moyen de déplacement de charge (58), portant de manière mobile un moyen de réception de charge, le chariot de manutention comportant comme composants une unité à cylindre et piston (12), qui forme le système d'entraînement pour un déplacement du moyen de réception de charge, et qui comporte un piston (16) apte à se déployer hors d'un cylindre (14) et à se rétracter vers l'intérieur de celui-ci, tandis que pour transmettre une force depuis l'unité à cylindre et piston (12) sur un élément mobile (62, 64) du moyen de déplacement de charge (58) ou sur le moyen de réception de charge lui-même, un élément de transmission de force flexible et, pour le renvoi de celui-ci, au moins un moyen de renvoi (26, 28) déviant le moyen de transmission de force autour d'un axe de renvoi (M34, M40) sont reliés avec un des éléments : piston et cylindre, au moins une partie du moyen de renvoi (26, 28), de préférence la totalité du moyen de renvoi (26, 28), étant située dans la zone d'extension longitudinale (E) de l'unité à cylindre et piston (12).
  9. Chariot de manutention selon la revendication 8, caractérisé en ce que le moyen de renvoi (26, 28) du moyen de transmission de force est prévu de telle sorte que l'axe de renvoi (M34, M40) imaginaire, prolongé dans la direction vers l'unité à cylindre et piston (12), du moyen de renvoi (26, 28) croise ou coupe l'unité à cylindre et piston (12).
  10. Chariot de manutention selon la revendication 8 ou 9, caractérisé en ce que l'axe de renvoi (M34, M40) du moyen de renvoi (26, 28) du moyen de transmission de force s'étend sensiblement orthogonalement à l'axe longitudinal (L) de l'unité à cylindre et piston (12).
  11. Chariot de manutention selon l'une des revendications 8 à 10, caractérisé en ce que, au niveau de l'extrémité longitudinale (16a) libre du piston (16), laquelle s'avance hors du cylindre (14), il est prévu une partie de tête (18) avec un moyen de retenue (22, 24) pour le maintien du moyen de renvoi (26, 28) du moyen de transmission de force, laquelle partie de tête s'avance vers le cylindre (14) sensiblement parallèlement à l'axe longitudinal (L) de l'unité à cylindre et piston (12).
  12. Chariot de manutention selon l'une des revendications 8 à 11, caractérisé en ce qu'il est prévu au moins deux moyens de renvoi (26, 28) du moyen de transmission de force sur deux côtés opposés de l'unité à cylindre et piston (12).
  13. Chariot de manutention selon l'une des revendications 8 à 12, caractérisé en ce que le moyen de transmission de force est une chaîne, à savoir une chaîne à lamelles, et le moyen de renvoi (26, 28) du moyen de transmission de force est une poulie de renvoi (26, 28) de la chaîne, l'axe de rotation de la poulie de renvoi de la chaîne étant alors l'axe de renvoi (M34, M40).
  14. Chariot de manutention selon l'une des revendications 5 à 7, en intégrant l'une des revendications 8 à 13, caractérisé en ce que l'élément mobile (16) est le piston (16) de l'unité à cylindre et piston (12), lequel est mobile par rapport à un cylindre (14), fixé sur le deuxième châssis de levage (64), et sur lequel est prévu le moyen de renvoi (26, 28) du moyen de transmission de force, un axe de renvoi (M34) du troisième point de renvoi (42) du câble étant sensiblement parallèle à l'axe de renvoi (M34, M40) du moyen de renvoi (26, 28) du moyen de transmission de force, de préférence sensiblement colinéaire à celui-ci.
  15. Chariot de manutention selon la revendication 2, le cas échéant en intégrant l'une des revendications 3 à 14, caractérisé en ce que, en outre, un cylindre (14) d'une unité à cylindre et piston (12) est fixé sur le deuxième châssis de levage (64), et le piston (16), mobile par rapport audit cylindre, est couplé, de manière à transmettre un mouvement, avec le poste de conduite guidé sur le deuxième châssis de levage (64) de manière mobile par rapport à celui-ci sensiblement dans la direction longitudinale (V) du support de levage, une conduite flexible (86), transportant un fluide de travail, étant disposée entre une unité de manoeuvre du chariot de manutention, solidaire du chariot de manutention, et le cylindre (14), ladite conduite de fluide de travail (86) s'étendant à partir de son extrémité solidaire du chariot de manutention vers le haut vers un premier point de renvoi (88) de la conduite situé sur le support de levage (60), à partir de là vers le bas vers un deuxième point de renvoi (90) de la conduite situé sur le premier châssis de levage (62) et à partir de là vers le cylindre (14).
  16. Chariot de manutention selon la revendication 15, caractérisé en ce que la structure de levage (58) comporte au moins deux ensembles de colonnes (60a, 62a, 64a ; 60c, 62c, 64c) parallèles entre eux s'étendant sensiblement dans la direction longitudinale (V) du support de levage, le câble (86) étant disposé dans la zone d'un ensemble de colonnes (60a, 62a, 64a) et la conduite de fluide de travail (86) étant disposée dans la zone d'un autre ensemble de colonnes (60c, 62c, 64c), de préférence en étant masqués au moins par zones, vus à partir du poste de conduite, par les ensembles de colonnes (60a, 62a, 64a ; 60c, 62c, 64c) respectifs.
EP05017917A 2004-08-19 2005-08-17 Chariot élévateurun avec un champ de vision agrandi Not-in-force EP1627846B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004040298A DE102004040298A1 (de) 2004-08-19 2004-08-19 Flurförderzeug mit vergrößertem Fahrersichtfeld

Publications (3)

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EP1627846A2 EP1627846A2 (fr) 2006-02-22
EP1627846A3 EP1627846A3 (fr) 2007-05-16
EP1627846B1 true EP1627846B1 (fr) 2010-02-03

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US (1) US20060104780A1 (fr)
EP (1) EP1627846B1 (fr)
CN (1) CN1736846B (fr)
DE (2) DE102004040298A1 (fr)

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US9457433B2 (en) * 2007-02-27 2016-10-04 Illinois Tool Works, Inc. System and method for coordinating welding and gouging operations
US9527711B2 (en) * 2014-06-04 2016-12-27 Jungheinrich Aktiengesellschaft Lift frame for an industrial truck
CN107416730A (zh) * 2015-08-12 2017-12-01 重庆市合川区均恒金属加工厂 汽配件集装装卸用广视野叉车
CN107337151A (zh) * 2017-06-16 2017-11-10 安徽宇锋仓储设备有限公司 一种侧提升叉车
JP7548119B2 (ja) * 2021-05-14 2024-09-10 株式会社豊田自動織機 リーチ型フォークリフト

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Also Published As

Publication number Publication date
CN1736846B (zh) 2010-11-03
EP1627846A2 (fr) 2006-02-22
US20060104780A1 (en) 2006-05-18
DE102004040298A1 (de) 2006-02-23
EP1627846A3 (fr) 2007-05-16
DE502005008968D1 (de) 2010-03-25
CN1736846A (zh) 2006-02-22

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