EP0558882A1 - Radarmunterstütztes Stapelfahrzeug - Google Patents

Radarmunterstütztes Stapelfahrzeug Download PDF

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Publication number
EP0558882A1
EP0558882A1 EP93100123A EP93100123A EP0558882A1 EP 0558882 A1 EP0558882 A1 EP 0558882A1 EP 93100123 A EP93100123 A EP 93100123A EP 93100123 A EP93100123 A EP 93100123A EP 0558882 A1 EP0558882 A1 EP 0558882A1
Authority
EP
European Patent Office
Prior art keywords
wheel
lifting
fork tines
arms
cover 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Withdrawn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
EP93100123A
Other languages
German (de)
English (en)
French (fr)
Inventor
Rainer Dr.-Ing. Bruns
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
Original Assignee
Jungheinrich AG
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 Jungheinrich AG filed Critical Jungheinrich AG
Publication of EP0558882A1 publication Critical patent/EP0558882A1/de
Withdrawn legal-status Critical Current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
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members

Definitions

  • the invention relates to a radar-supported stacking vehicle according to the preamble of patent claim 1.
  • Such a stacking vehicle has become known, for example, from DE 15 56 713.
  • a lifting frame is attached to the three- or multi-wheeled vehicle, on which in turn a height-adjustable lifting carriage with two fork tines is attached. Due to the dimensions of standard or usual loading aids, the inside and outside distance of the forks is fixed. In such vehicles, it is also common not to hang up the fork tines or arms separately, but directly with the lifting slide connect to. For this purpose, it is known to design the fork tines in a U-shape so that they receive the wheel arms when the lifting carriage is lowered.
  • the legs of the U-profile are usually formed by square profiles, which are connected to the lifting carriage by welding. They take on the supporting function, while the cover plate, on the underside of which the square profiles are welded, only take on the covering function.
  • the fork tines can no longer be attached to the lifting carriage within the profile of the inner mast section. It is therefore necessary to widen the lifting slide by truss sections so that the outer square profile can be welded on. This inevitably increases the length of the mast by the thickness of the crossbar.
  • the invention has for its object to provide a radar-supported stacking vehicle in which the mast can be made very short despite the small width.
  • the fork tines are L-shaped in cross section.
  • the previously used outer support profiles of the U-shaped fork tines are omitted. This means that the load-bearing function is only taken up by the inner profiles, which have to be made thicker and wider than conventional forks, for example roughly twice as wide as with conventional forks.
  • the cover plate provided as before has no essential supporting function and could even be omitted. Appropriate shaping of the sheet can facilitate entry into the pallets.
  • the design of the fork tines according to the invention is associated with considerable advantages.
  • the wheel arms of the forklift truck can be placed further outwards with the outer distance of the fork tines unchanged, since there is no limitation due to the outer support profiles of the fork tines. In this way, the stability and thus the residual load capacity of the truck is significantly increased.
  • FIGS. 1 to 3 only a lifting arm 10, 10a, 10b is shown of a stack arm-supported stacking vehicle, which consists of two spaced profiles 12, 14 of an inner mast section and two profiles 16, 18 of an outer mast section.
  • the structure of the mast is conventional and will not be described in detail.
  • the vehicle, not shown, has wheel arms 20, 22 which are supported in a known manner at the front end by a roller.
  • the lifting carriage 24a is a U-shaped profile in cross section, which is arranged between the profiles 12, 14 of the inner mast section. So that can the mast and the entire truck are very short. However, the width of the mast cannot be reduced below the specified dimension. On the other hand, if the width is to be reduced, as shown in FIG. 1, 24 crossbar sections 26, 28 are to be provided on both sides of the slide so that the fork tines 30, 32 keep the same distance from one another. This external distance is the same in all three versions according to FIGS. 1 to 3.
  • the structure of the fork tines 30 and 32 is shown in FIG. 4 in more detail. It consists of two spaced-apart square profiles 34, 36 which are to be firmly connected to the slide 24 or 24a, preferably by welding. A cover plate 38 is welded to the support profiles 34, 36. In the lowered position of the lifting carriage 24, 24a, the wheel arms 20, 22 are completely absorbed by the prongs 30, 32, with parting lines 40, 42 being formed to the wheel arms 20, 22.
  • a lifting slide 24b is provided, which is similar in construction to the lifting slide 24a according to FIG. 2 and also is arranged between the profiles 12, 14 of the inner mast section.
  • the width of the carriage 24b is significantly reduced compared to that of the carriage 24a, because overall the width of the mast 10 is smaller and corresponds to the width of the mast 10 according to FIG. 1.
  • the structure of the fork tines 44, 46 is shown in FIG. 5.
  • the fork tines 44, 46 have an L-shaped profile in cross section and consist of a support profile 48 with a rectangular cross section, onto which a cover plate 50 is welded on one side.
  • the wheel arm 20 or 22 is also completely received in the lowered state of the lifting carriage.
  • the wheel arms 20, 22, however, can be spaced apart from each other corresponding to the dimension a, because the second support profile of conventional U-shaped fork tines (FIG. 4) has disappeared.
  • a radar-supported stacking vehicle designed in accordance with FIG. 3 can therefore be built extremely small both in width and in length, without having to accept a reduction in the load-bearing capacity of the lifting carriage.
  • maximum stability can be achieved by means of relatively widely spaced wheel arms.

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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)
EP93100123A 1992-03-02 1993-01-07 Radarmunterstütztes Stapelfahrzeug Withdrawn EP0558882A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4206517 1992-03-02
DE19924206517 DE4206517C1 (enrdf_load_stackoverflow) 1992-03-02 1992-03-02

Publications (1)

Publication Number Publication Date
EP0558882A1 true EP0558882A1 (de) 1993-09-08

Family

ID=6453023

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93100123A Withdrawn EP0558882A1 (de) 1992-03-02 1993-01-07 Radarmunterstütztes Stapelfahrzeug

Country Status (2)

Country Link
EP (1) EP0558882A1 (enrdf_load_stackoverflow)
DE (1) DE4206517C1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202019104986U1 (de) * 2019-09-10 2020-12-15 Jungheinrich Aktiengesellschaft Flurförderzeug mit Gabelzinken

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1541473A (en) * 1921-06-29 1925-06-09 Julius M Breitenbach Industrial truck
US1689259A (en) * 1926-05-03 1928-10-30 Shepard Co Lewis Portable load carrying and hoisting machine
DE1078502B (de) * 1958-12-19 1960-03-24 Focke Wulf Ges Mit Beschraenkt Transportgeraet zum Bewegen und Stapeln von Stueckgut
GB1075742A (en) * 1964-03-24 1967-07-12 Lansing Bagnall Ltd Improvements in or relating to industrial trucks
DE1556713A1 (de) * 1967-03-15 1970-03-12 Bygg Och Transportekonomie Ab Hubfahrzeug,insbesondere Gabelstapler
DE2403181A1 (de) * 1973-01-29 1974-08-01 Bushnell Jun Mechanische hubvorrichtung
US4652202A (en) * 1985-04-25 1987-03-24 Kersten Donald J Lift mechanism

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1541473A (en) * 1921-06-29 1925-06-09 Julius M Breitenbach Industrial truck
US1689259A (en) * 1926-05-03 1928-10-30 Shepard Co Lewis Portable load carrying and hoisting machine
DE1078502B (de) * 1958-12-19 1960-03-24 Focke Wulf Ges Mit Beschraenkt Transportgeraet zum Bewegen und Stapeln von Stueckgut
GB1075742A (en) * 1964-03-24 1967-07-12 Lansing Bagnall Ltd Improvements in or relating to industrial trucks
DE1556713A1 (de) * 1967-03-15 1970-03-12 Bygg Och Transportekonomie Ab Hubfahrzeug,insbesondere Gabelstapler
DE2403181A1 (de) * 1973-01-29 1974-08-01 Bushnell Jun Mechanische hubvorrichtung
US4652202A (en) * 1985-04-25 1987-03-24 Kersten Donald J Lift mechanism

Also Published As

Publication number Publication date
DE4206517C1 (enrdf_load_stackoverflow) 1993-08-12

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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