EP0527331A1 - Appareil adaptable à un gerbeur - Google Patents

Appareil adaptable à un gerbeur Download PDF

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Publication number
EP0527331A1
EP0527331A1 EP92111565A EP92111565A EP0527331A1 EP 0527331 A1 EP0527331 A1 EP 0527331A1 EP 92111565 A EP92111565 A EP 92111565A EP 92111565 A EP92111565 A EP 92111565A EP 0527331 A1 EP0527331 A1 EP 0527331A1
Authority
EP
European Patent Office
Prior art keywords
frame
attachment according
attachment
boom
plate
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.)
Withdrawn
Application number
EP92111565A
Other languages
German (de)
English (en)
Inventor
Rolf Baumann
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.)
R BAUMANN and CO
Original Assignee
R BAUMANN and CO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by R BAUMANN and CO filed Critical R BAUMANN and CO
Publication of EP0527331A1 publication Critical patent/EP0527331A1/fr
Withdrawn legal-status Critical Current

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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
    • B66F9/061—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 characterised by having a lifting jib
    • 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
    • B66F9/18—Load gripping or retaining means
    • B66F9/181—Load gripping or retaining means by suction means

Definitions

  • the invention relates to an attachment for lift trucks, in particular side stackers for stacking and unstacking plates, which have at least two vertically movable fork tines.
  • Lift trucks of the type mentioned have been known for a long time and are used essentially for lifting loads and for transporting them over relatively short distances. Especially in connection with the storage in rack storage it has proven to be useful for the storage of material in the rack spaces as well as the removal of material from forklifts. Forklifts can be used particularly advantageously if the material is packed in containers or arranged on standardized pallets.
  • the problem often arises that of the stack of plates stored in the shelf only one or two plates are needed. So far, in this case the entire stack of plates has been removed from the shelf compartment by an industrial truck and brought to a so-called picking station, where the desired number of plates has been manually removed from the stack of plates. The remaining stack of plates was then placed in the associated shelf compartment again using the forklift.
  • a rack operating device with a separation device has been proposed in DE 40 10 486 A1, which has a vertically movable horizontal support.
  • a telescopic boom which has a suction gripper at its free end, is arranged vertically displaceably on the horizontal support.
  • the shelf operating device is moved to the corresponding shelf position and the horizontal support is raised to the height of the panel stack together with the extension arm.
  • the top plate of the plate stack located in the shelf compartment can then be gripped by means of the suction gripper and placed on the horizontal support.
  • the shelf operating device according to DE 40 10 486 A1 has the disadvantage that it is only for putting together of packages from isolated panels can be used.
  • work of this kind is relatively rare in most, in particular, smaller companies, the rack operating device can hardly be used economically in such companies.
  • the invention has for its object to solve the above problems and to provide an inexpensive way to assemble packages from individual plates with a known forklift.
  • an attachment for forklift trucks which has a frame which can be picked up and fixed on the fork tines and which carries an extendable boom at a distance from the flat upper side of the frame and essentially parallel to it, at its free end a gripping device for gripping at least one plate of a plate stack is arranged.
  • Forklifts in the form of side and forklifts are available in almost every production facility.
  • such stackers can now be converted in a simple manner by gripping the attachment with the fork tines in such a way that they can be used for assembling packages from individual plates. It is possible to have only one attachment for several forklifts, which can be attached to one of the stackers as required. Since the attachment is considerably cheaper than a complete rack operating device, which is specifically designed for separating stacked plates, the invention can also be used for smaller companies to perform the separation of plates or the assembly of packages from separated plates in a cost-effective manner .
  • the frame according to the invention serves as a storage space for the plates removed from the rack storage space and is fed by the extendable boom mounted directly on the frame.
  • the frame serves as a storage space for the plates removed from the rack storage space and is fed by the extendable boom mounted directly on the frame.
  • supports which extend substantially vertically to the frame plane are attached to the frame and guide the boom in a vertically displaceable manner.
  • the boom and thus the gripping device can be displaced in the vertical direction relative to the frame or the package of individual plates located on the frame.
  • this enables the height of the boom to be fine-tuned when a plate of a plate stack is gripped, without having to move the entire frame.
  • the attachment can easily be used for packages of different heights and plates of different thicknesses.
  • a structurally simple structure of the frame can be achieved if it is formed from at least two substantially parallel longitudinal beams and a plurality of substantially transverse beams. It is advantageous that the cross members do not run in the same plane as the side members but above them and form a support level for receiving de-stacked plates or a package of individual plates, since in this way simple connections are formed between the cross members and the side members can.
  • the support for the package of isolated plates is formed only by the cross members, that is to say by a plurality of substantially parallel line bearings, so that a defined load transfer can be achieved.
  • an intermediate space is formed between the support plane for the plates and the upper edge of the longitudinal beams, into which the fork tines can be inserted.
  • the boom and the gripping device can be moved along the supports into a lowered position in which they are completely accommodated in the frame below the support plane.
  • the frame can thus serve as a pallet as a storage and transport area without the boom and the gripping device hindering or restricting the arrangement of the goods to be transported, and they are also protected from possible damage within the frame.
  • additional structures for example side walls and a floor or ceiling plate, as a container which is closed on all sides or at least as a trough-like container, as a result of which the possible uses of the attachment are significantly increased.
  • the attachment In order to convert the forklift to separate plates, the attachment must be attached to the forks of the forklift. A large number of structural configurations are possible for such an attachment.
  • the fork tines engage in pocket-like recesses in the frame and thereby effect the attachment.
  • the fork tines can be locked on the attachment by means of a latching device or by means of additional securing means, for example a pin lock.
  • the fork tines In order to be able to ensure a simple and quick insertion of the fork tines into the recesses of the frame, these should be formed in the side members, i.e. be arranged substantially at the level of the floor. In this way, the fork tines only have to be moved into their fully lowered position in order to receive the attachment and inserted laterally into the recesses. In addition, a defined load transfer from the plate pack via the cross members into the longitudinal members and from these into the fork tines is achieved in this way.
  • the entire attachment is raised to a corresponding height by lifting the fork tines. Then the boom is actuated with the gripping device to pick up the plate.
  • the view of the boom and the gripping device can be obstructed, in particular if individual plates are already stacked on the frame.
  • Such a visual obstruction can be achieved by means of a video surveillance system, ie by means of a video camera arranged on the attachment and a monitor in the driver's cab can be avoided, but such electronic devices are not available in every company and require a great deal of care and routine to work with them.
  • a passenger stand is arranged on an end face of the frame and can be moved vertically together with the frame.
  • a control desk should preferably be arranged on the passenger stand, by means of which the driving and working movements of the forklift, the boom and the gripping device can be controlled.
  • the gripping device serves to grasp and pick up at least the top plate of a plate stack lying in a shelf compartment.
  • Suction cups which are placed on the plate to be separated from above, have proven particularly useful. Subsequently, a negative pressure is generated in the space between the suction pads and the plate, as a result of which the plate and the suction pads are pressed against one another.
  • the plate can be reliably gripped and held securely with a suction gripper, the design effort and the energy requirement are relatively high.
  • the plate to be separated can be gripped in a simplified manner if the gripping device has a puller which engages behind the plate to be separated. The boom is extended and lowered so far that the puller comes to rest behind the plate to be separated.
  • the puller When the boom is then retracted, the puller comes into contact with the plate and pulls it down from the plate stack.
  • the puller can be in various configurations, for example as a transverse rail or as a hook be trained. However, the puller is advantageously formed by a plurality of puller pins. The pins run perpendicular to the plate plane and thus form several points of attack for the pull-off force. If the puller pins are adjustable in their axial length, one or more plates can optionally be pulled off the plate stack. In addition, the puller pins can be optimally adapted to varying plate thicknesses.
  • FIGS. 1 to 3 show an industrial truck in the form of a side loader 1, to which an attachment 20 is attached.
  • the side stacker 1 runs on four wheels 2 and can be moved along a rack aisle 9 by means of a drive device (not shown). During the movement within the rack aisle 9, the sideloader is guided over lateral guides 3, which at the same time form a collision protection.
  • the shelf aisle 9 is formed between two shelves 10 of a shelf warehouse, each shelf 10 having a plurality of shelf compartments 12. According to the illustration in FIG. 3, two of the shelf compartments 12 are each occupied by a stack of plates 11, each stack of plates 11 being formed by a large number of similar plates stacked one on top of the other.
  • the side stacker 1 has the known structure with a laterally arranged driving cabin or a driver's station 5 and a side mast 4 which can be extended to different heights.
  • Lifting forks 7 are mounted on the mast 4 in a known manner and can be displaced vertically both together with the mast 4 and relative thereto.
  • Each lifting fork 7 has an essentially vertical section, by means of which the lifting fork 7 is attached to the mast, and an essentially horizontally extending fork prong 6.
  • the side stacker 1 carries the attachment 20 on its fork tines 6.
  • the attachment 20 has a flat, essentially horizontally extending frame 21 which consists of two longitudinal beams 22 which run in the direction of the rack aisle and are spaced apart from one another and a plurality of cross members 23 which are perpendicular to the side members 22.
  • the cross members 23 are attached above the longitudinal members 22, so that the support plane of the frame 21 is formed by the tops of the cross members 23.
  • the longitudinal members 22 have a plurality of pocket-like recesses 29 near their underside, on which the fork tines 6 can penetrate the longitudinal members 22.
  • the fork tines are inserted into the recesses 29 of the frame 21 or the longitudinal member 22 and fixed or locked there in a manner not shown. In this way, the attachment 20 can be raised and lowered together with the fork tines 6 in the vertical direction.
  • a support frame 19 is attached to the frame 21 on its side facing the driver's cab 5, said support frame 19 having two supports 26 which extend essentially perpendicular to the plane of the frame and which are connected to one another at their upper end by a yoke support 26a are.
  • a vertically arranged spindle 27 is rotatably mounted on the yoke carrier 26a and engages with a boom 24 in such a way that the boom 24 can be raised and lowered in the vertical direction when the spindle 27 rotates. The boom 24 is guided on the supports 26 during a vertical adjustment movement.
  • the cantilever 24 is freely cantilevered and extends in the transverse direction of the frame 21 and thus essentially parallel to the cross beams 23 above them.
  • the boom 24 has a plurality of telescopic members 24a and 24b which extend in the longitudinal direction of the boom 24, i.e. are extendable in the transverse direction of the frame 21, whereby the boom 24 can be extended to a length corresponding to approximately twice the frame width.
  • the boom 24 has a length corresponding to approximately half the frame width, as can be seen from FIG. In this way, the boom 24 can be extended into a shelf compartment 12 if necessary.
  • suction pads 32 In order to pick up the plates stacked in the shelf compartment 12 or to remove them individually from the plate stack 11, there is a gripping device on the front telescopic member 24b 25 attached, which has two suction pads 32, which are arranged on both sides of the boom 24. If necessary, four suction pads 32 can also be provided, as indicated by dashed lines in FIG. 2.
  • the suction pads 32 are mounted on a pipe link 33, which also serves as a vacuum line for the suction pads, which is connected to a pump, not shown, or a similar unit that generates a vacuum. Since suction pads are known per se, their structure will not be discussed in detail.
  • a passenger stand 30 is attached to the side members 22, which has a platform 30a running between the side members 22, which can be walked on by an operator, and a railing 30b surrounding the platform 30a Safety of the operator has.
  • the passenger stand 30 is also raised or lowered, as is also shown in FIG. 3.
  • a control device 31 is also arranged on the passenger stand 30, by means of which the operator can control the movement sequences of the side loader 1, the boom 24 and the gripping device 25. In addition, these movements can also be controlled by a control panel in the driver's cab 5 of the side loader 1.
  • the control panel 31 can be moved along the platform 30a, so that the operator can freely choose the position of the control panel 31.
  • the side stacker 1 is moved next to the implement 20 standing on the floor.
  • the fork tines 6 are inserted into the recess 29 in the side members 22 of the attachment 20 and fixed there.
  • the side stacker 1 with the attachment 20 is moved into a rack aisle 9 in front of or under a shelf compartment 12 in which the plate stack 11 is arranged, from which one or more plates are to be removed individually.
  • the operator then preferably climbs into the passenger stand 30 and controls all movement sequences by means of the control panel 31.
  • the lifting forks 7 together with the attachment 20 are then raised to a height corresponding to the desired shelf compartment 12, as shown in FIG. 3.
  • the boom 24 is arranged above the upper edge of the plate stack 11.
  • the telescopic members 24a and 24b are extended until the suction pads 32 of the gripping device 25 are arranged above the approximately central area of the plate to be picked up.
  • the boom 24 is then lowered so that the suction pads 32 come to rest on the surface of the upper plate of the plate stack 11.
  • the upper plate of the plate stack 11 By generating negative pressure in the suction grippers 32, the upper plate of the plate stack 11 is sucked in, so that the plate can be removed by pulling in the telescopic segments 24a and 24b. If the plates of a plate stack 11 have a sensitive surface, the upper plate can also be raised slightly first by actuating the spindle 27 before it is removed from the rack compartment 12 by retracting the telescopic members 24a and 24b. This state is shown in Figure 3.
  • the boom 24 is lowered by actuating the spindle 27.
  • the suction pads 32 are then released from the plate 13, in which the application of the negative pressure is ended.
  • the side stacker 1 can be used for further use or processing.
  • the attachment 20 is placed on the ground with the plate pack supported on the frame 21 and the fork tines 6 are pulled out of the recesses 29, whereby the connection between the side stacker 1 and the attachment 20 is released and the side stacker 1 can again perform its original functions .
  • the fork tines 6 are inserted into the space 28 which is formed between the upper edge of the side members 22 and the underside of the lower plate of the package 8 in that the cross members 23 are arranged above the side members and the bearing surface of the Define frame 21. By lifting the fork tines 6, the plate pack 8 can then be lifted off the frame 21 and moved away by means of the side stacker 1.

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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)
EP92111565A 1991-08-12 1992-07-08 Appareil adaptable à un gerbeur Withdrawn EP0527331A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4126642 1991-08-12
DE19914126642 DE4126642A1 (de) 1991-08-12 1991-08-12 Anbaugeraet fuer hubstapler

Publications (1)

Publication Number Publication Date
EP0527331A1 true EP0527331A1 (fr) 1993-02-17

Family

ID=6438153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92111565A Withdrawn EP0527331A1 (fr) 1991-08-12 1992-07-08 Appareil adaptable à un gerbeur

Country Status (2)

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EP (1) EP0527331A1 (fr)
DE (1) DE4126642A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9309252U1 (de) * 1993-06-22 1993-11-18 SYSTRAPLAN Gesellschaft für Planung und Bau von materialflußtechnischen Anlagen mbH & Co. KG, 32052 Herford Regalförderzeug zum Einlagern und Auslagern von Plattenstapeln und Einzelplatten in Regalen mit der Zugriffsmöglichkeit auf mehrere hintereinander im selben Regalfach angeordnete Lagerplätze
EP0683131A3 (fr) * 1994-05-16 1995-12-13 Tokushu Paper Manufacturing Co. Ltd Procédé et dispositif pour ramasser des marchandises empaquetées
EP1365975A4 (fr) * 2001-01-26 2007-02-28 Bakvertisi Ltd Procede et appareil de stockage et de recuperation de contenants
WO2009127994A1 (fr) * 2008-04-18 2009-10-22 Luca Toncelli Chariot élévateur mobile équipé de moyens de prise amovible pour réaliser un paquet mélangé de matériau en plaque et procédé associé correspondant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011122137A1 (de) 2011-12-23 2013-06-27 Ulrich Zimmermann Lastaufnahmevorrichtung für ein Flurförderzeug und/oder für ein Hebezeug

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820561A (en) * 1954-04-02 1958-01-21 William G Meagher Vehicular hoist unit
US2873873A (en) * 1957-11-19 1959-02-17 Jesse C Fowler Boom attachment for fork lift truck
DE1292581B (de) * 1963-05-30 1969-04-10 Demag Zug Gmbh Stapelhubgeraet
EP0066182A1 (fr) * 1981-05-26 1982-12-08 Albert Irion Nachfolger Chariot élévateur à fourche transversale
DE3706382A1 (de) * 1986-04-28 1987-10-29 Tampella Oy Ab Vorrichtung zum hantieren von platten
DE4010486A1 (de) * 1989-05-29 1990-12-06 Manitec Ag Vereinzelungsvorrichtung fuer gestapelte platten
FR2661167A1 (fr) * 1990-04-24 1991-10-25 Joulin Aero Distribution Sarl Dispositif de prehension pour chariot elevateur.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820561A (en) * 1954-04-02 1958-01-21 William G Meagher Vehicular hoist unit
US2873873A (en) * 1957-11-19 1959-02-17 Jesse C Fowler Boom attachment for fork lift truck
DE1292581B (de) * 1963-05-30 1969-04-10 Demag Zug Gmbh Stapelhubgeraet
EP0066182A1 (fr) * 1981-05-26 1982-12-08 Albert Irion Nachfolger Chariot élévateur à fourche transversale
DE3706382A1 (de) * 1986-04-28 1987-10-29 Tampella Oy Ab Vorrichtung zum hantieren von platten
DE4010486A1 (de) * 1989-05-29 1990-12-06 Manitec Ag Vereinzelungsvorrichtung fuer gestapelte platten
FR2661167A1 (fr) * 1990-04-24 1991-10-25 Joulin Aero Distribution Sarl Dispositif de prehension pour chariot elevateur.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9309252U1 (de) * 1993-06-22 1993-11-18 SYSTRAPLAN Gesellschaft für Planung und Bau von materialflußtechnischen Anlagen mbH & Co. KG, 32052 Herford Regalförderzeug zum Einlagern und Auslagern von Plattenstapeln und Einzelplatten in Regalen mit der Zugriffsmöglichkeit auf mehrere hintereinander im selben Regalfach angeordnete Lagerplätze
EP0683131A3 (fr) * 1994-05-16 1995-12-13 Tokushu Paper Manufacturing Co. Ltd Procédé et dispositif pour ramasser des marchandises empaquetées
US5630692A (en) * 1994-05-16 1997-05-20 Tokushu Paper Mfg. Co., Ltd. Method and apparatus for picking up packaged sheet
US5749693A (en) * 1994-05-16 1998-05-12 Tokushu Paper Mfg. Co., Ltd. Method and apparatus for picking up packaged sheets
EP1365975A4 (fr) * 2001-01-26 2007-02-28 Bakvertisi Ltd Procede et appareil de stockage et de recuperation de contenants
WO2009127994A1 (fr) * 2008-04-18 2009-10-22 Luca Toncelli Chariot élévateur mobile équipé de moyens de prise amovible pour réaliser un paquet mélangé de matériau en plaque et procédé associé correspondant
US9346618B2 (en) 2008-04-18 2016-05-24 Luca Toncelli Displaceable lift truck equipped with releasable engaging means for making up a mixed pack of slab material and method associated therewith

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Publication number Publication date
DE4126642A1 (de) 1993-02-18

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