EP0318823B1 - Flurförderzeug zur seitlichen Lastaufnahme - Google Patents

Flurförderzeug zur seitlichen Lastaufnahme Download PDF

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Publication number
EP0318823B1
EP0318823B1 EP88119544A EP88119544A EP0318823B1 EP 0318823 B1 EP0318823 B1 EP 0318823B1 EP 88119544 A EP88119544 A EP 88119544A EP 88119544 A EP88119544 A EP 88119544A EP 0318823 B1 EP0318823 B1 EP 0318823B1
Authority
EP
European Patent Office
Prior art keywords
load
load carrier
transport vehicle
rollers
arms
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88119544A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0318823A1 (de
Inventor
Ernst-Peter Dr.-Ing. Magens
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 EP0318823A1 publication Critical patent/EP0318823A1/de
Application granted granted Critical
Publication of EP0318823B1 publication Critical patent/EP0318823B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B66F9/08—Masts; Guides; Chains
    • B66F9/10—Masts; Guides; Chains movable in a horizontal direction relative to truck
    • 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
    • B66F9/122—Platforms; Forks; Other load supporting or gripping members longitudinally movable

Definitions

  • the invention relates to an industrial truck for lateral load absorption from the floor and from shelves with two transverse chassis supports, under which steerable and / or drivable wheels are arranged and with a load carrier assembly with load carriers, in particular fork-shaped load arms, which extend over the contour of the truck or the chassis supports can be moved out laterally, guide arrangements being provided on the sides of the chassis supports facing one another, on which the laterally extendable load support is guided on both sides, a feed drive for extending and retracting the load support and a lifting drive for height movement of the load support with respect to at least one Chassis supports are arranged.
  • the reference to a side load pick-up includes handling itself, which also includes the setting down of a load.
  • load carrier assembly generally designates a fork-shaped load carrier, but does not exclude that the load carrier assembly also has a lifting frame, which has fork-shaped load support arms on a slide, which can be moved into shelves at an adjustable height and can be withdrawn from them.
  • Industrial trucks of the type mentioned above are designed for operation with drivers, but preferably for operation without a driver. In this case, they are guided along the guide routes laid in the floor and also aligned with shelves.
  • a side feed of a load carrier is provided in order to also carry out or load loads on the side in narrow rack aisles, problems arise.
  • the back of the load carrier is known to be guided on a guide arrangement with at least one roller and possibly further supports, but laterally extendable load carriers or fork arms are kept free and are undefined in their height. Elastic deformation occurs particularly when loaded with loads.
  • a turntable is arranged on which the guide channels are arranged, in which extendable parts are movably guided.
  • You are inevitably guided in a vehicle-dependent minimum height.
  • ground contact with the wheels is only possible outside the vehicle contour, but now these wheels are also offset laterally. So you are not under the load arms. Loads can be picked up laterally, but picking up or delivering them from or to the floor is not possible.
  • the fork and the fork back must first lie outside a bearing assembly before a lowering to the floor is possible. Then a further lateral movement is excluded, so that with this known design a load can only be picked up from shelves or pedestals or from the second layer of a stack. This limits the possible use as far as possible.
  • FR-A 1 259 944 shows a vehicle with a mast fixed to the front of the vehicle and a load carriage that can be moved vertically on it. Load carrying arms can be pivoted on this, which have rollers which can be extended downwards. However, the entire guide for the lifting device is only supported on one side. This results in bending loads and, in this respect, deformations, especially when extending transversely, so that in this known embodiment there is not a sideloader according to the preamble of claim 1. It is a cantilever truck.
  • a pallet truck according to GB-A 1 377 954 has a supporting part that can be opened and lowered on the mast. This is a conventional front loader with load rollers that can be extended downwards, whereby forward movement is made possible by a scissor linkage.
  • a frontal forklift is known in which a mast-foot unit on the housing can be moved up and down and has arm-shaped feet underneath with roller supports which can be raised and lowered by means of control rods. There is no sideloader and no lateral guidance.
  • This version works with fork-shaped load carriers without their own load or support rollers. The loaded load carrier is kept self-supporting.
  • a front stacker is known, on which the mast carriage is detachably arranged as a separate vehicle and can be moved on a vehicle platform for itself.
  • the control connection is maintained by a cable 102 to the parent vehicle, on which to Load rollers that can be extended below or support rollers for your own vehicle can be extended hydraulically.
  • US-A-4 103 795 shows a satellite vehicle from the above points of view.
  • FR-A-1 252 876 also shows a front forklift with a lifting mast, on the load carrier of which a freely movable satellite vehicle is arranged. This can move from the load carriers on the mast to a loading platform and is then controlled by rollers that can be extended downwards.
  • the problem of guides being able to be lifted off does not arise insofar as the satellite vehicle can travel to another working level without a functional connection.
  • a single vehicle is shown here, which is only approached to certain working levels.
  • FR-A-1 323 373 shows a scissor-type construction for extending the lifting carriage and load carrier, under the fork arms of which there are no extendable rollers. If the side guides 22 are left, the system is no longer stable.
  • the invention has for its object to provide a side loader with and without a mast, i.e. To create a truck for lateral load absorption according to the above considerations so that with a stable design with side guides not only reliably handles loads when the load carrier is extended beyond the contour of the vehicle, but above all loads can be picked up directly next to the vehicle, without one Load carrier precautions can be worked laterally.
  • the load carrier assembly has load rollers which can be extended downward within the vertical projection of the load carrier and which can already be extended in the transport position of the load carrier, ie within the vehicle contour, but can also be retracted within the vertical projection of the load carrier.
  • a rack aisle with rows of shelves 1, 2 is shown. Of these rows of shelves, only the stacking compartments are practically indicated in one level.
  • a guide element 3 is laid in the ground between the rows of shelves 1, 2. This can be a guide element for inductive guidance, optical guidance or also mechanical guidance. Particularly well known in this context is inductive guidance through a guide wire laid in the ground, which develops a field when the power is connected, the intensity of which is picked up by probes of a vehicle on both sides of an actual guide element in order to steer the vehicle.
  • Such an industrial truck 4 is shown. It consists of a vehicle body 5 with chassis supports 6, 7 running transversely to the longitudinal direction of the vehicle.
  • a load support assembly 8 with two fork-shaped load support arms 21, 22 is guided on guide arrangements which are arranged on mutually facing parallel sides of the chassis supports 6, 7. which are arranged on a fork arm back 11, which can also be designed as a housing.
  • a special drive is provided for extending laterally in the direction of arrow 12. Hoist drives are arranged in the same way, as will be described with reference to FIGS. 15 and the following.
  • the load carrier with its fork-shaped load support arms 21, 22 can move into or under a load 13 in the rack row 2, lift this load and retract it into the contour of the industrial truck 4.
  • the invention creates a load carrier assembly with wheel arms and possibly a mast.
  • the load carrier arms 21, 22 belong to this load carrier assembly, but are then wheel arms because load rollers 23, 24, which can be extended downward, are arranged on them.
  • the basic configuration of the load carrier assembly is therefore in an embodiment with such load arms 21, 22 as so-called wheel arms.
  • load carrier assembly 8 when the load carrier assembly 8 is equipped with a lifting frame, for example according to FIG. 10, can special load support arms 109 be arranged on the lifting slide in addition to the fork-shaped load support arms 21, 22 with the load rollers.
  • the arms are then referred to as load carrying arms 21, 22, when they also directly take up the load, on which load rollers 23, 24 are also arranged at the bottom.
  • additional arms with load rollers 23, 24, such arms are designated 110 and 111 in FIG. 10 and are called wheel arms.
  • FIGS. 2 and 3 now show a section along the line II-II, in which the truck 7 can first be seen by the industrial truck, which is connected by the side member 14 to the other chassis carrier 6, so that a chassis is created for the truck at all .
  • the two wheels 15, 16 on which the vehicle can be moved using the drive and steering wheel 17 of the vehicle body 5 can be seen in FIGS. 2 and 3 in the chassis support 7.
  • Guide arrangements 18 are provided in the two chassis supports 6, 7, one of which is shown in the figures 2 and 3 is shown. This can be a career as will be described with reference to FIG. 15. Such guide arrangements are arranged on both sides of the load carrier assembly 8 and fastened to the mutually facing sides of the two chassis supports 6, 7. In the formal representations in FIGS. 2 and 3, the guide rollers 33, 34 are arranged on the guide arrangement, in this case a dashed guideway, but are drawn according to FIG. 2 in the raised position, as is provided in the suspended state of the load carrier assembly.
  • the chassis carrier 7 belongs to the industrial truck, which is not otherwise shown in detail. On it, however, a hook-shaped suspension 19 is provided with a hook that is open at the top and has a cutting edge on which a cutting edge bearing 20 of a suspension or receiving arrangement can be placed on the fork arm back housing 11.
  • the abutment 105 can also be seen at the bottom of the chassis, to which the lower region of the fork arm back 11 or the so-called fork arm back housing can rest when the suspension arrangement engages with the hook-shaped suspension 19 and the cutting edge bearing 20 .
  • load rollers 23, 24 are arranged in pairs on a rocker-like carrier or a rigid carrier. These load rollers 23, 24 or their carrier are extendable or retractable, depending on the respective position of the load carrier assembly 8.
  • the load rollers 23, 24 are on a pivot lever 25, which can be moved in height via a linkage to be described, depending on the height movement of the load carrier assembly relative to the industrial truck or chassis carrier 7, in order to release the area 19, 20 when it is supported on the load rollers 23, 24 while lowering the guide rollers 33 , 34 to effect or a latching in reverse movement of the load and / or guide rollers 33, 34 to effect.
  • the fork arm back housing 11 is shown. It carries the two fork-shaped load-bearing arms 21, 22 at the bottom and has in the side walls 26, 27 longitudinal slots 28, 29, through which a crossmember 30 with axle extensions 31, 32 passes against canting.
  • Guide rollers 33, 34 which run on guide tracks 35, 36 of the chassis supports 6, 7, can be rotated freely on the axles, and can be lifted upwards.
  • a double-acting hydraulic cylinder piston arrangement 37 acts firmly but articulately on the crossbeam, the cylinder of which is connected at the bottom via a pivot bearing 38 to the bottom of the housing 11 and whose piston 39 is pivotably connected to the crossbeam 30. Also pivotable, but guided in a different way in the housing 11 in the vertical direction on the wall parts running parallel to the plane of the drawing in FIG. 15, scenes 40, 41 are arranged, one of which will be explained in more detail with reference to FIG. 17.
  • FIG. 15 shows an arrangement in which the fork-shaped load-bearing arms 21, 22 are inserted into a pallet, to which the parts belonging, which are 42 to 44 are designated, but also include the upper and lower pallet boards, especially the pallet board carried out above, to which the cushions are then added.
  • the load rollers 23, 24 or 45, 46 can be attracted to the wheel arms or, in relation to FIG. 15, the load support arms or be removed from them.
  • the position shown in FIG. 15 shows the load rollers 23, 24; 45, 46 lifted off the floor 47 and the pallet with its parts 42, 43 supported on load supports 48, 49 corresponding to 76-78 in FIGS. 10 and 11 on the chassis supports 6, 7.
  • the cylinder piston arrangement 37 acts on both sides, it is possible to raise the fork arm back housing 11 with respect to the guide rollers 34 and thus also to raise the wheel arms, with the scenes 40, 41 remaining on the vehicle carriers in their vertical position relative to the guide tracks, as shown in FIG. 17 the load rollers 23, 24; 45, 46 are extended.
  • the cross member has a certain width so that it is guided in the side walls, optionally by means of two guide rollers 50, 51 on the side walls of the housing 11.
  • Guide rollers 54, 55; 56, 57 arranged to ensure guidance on the side walls of the housing 11.
  • FIG. 17 The latter can also be seen in FIG. 17, wherein it can be seen that the side walls 52, 53 of the housing 11 on the guide rollers 54, 55; 56, 57 of the backdrop 40, 41 and 50, 51 of the cross member 30 are movable.
  • the scenes have slanted scenery guides, one 58 of which is shown in FIG. 17.
  • a two-armed pivot lever 60 which is pivotably mounted on a pivot bearing 61 of the fork arm back housing 11, is guided in this by means of a roller 59.
  • the other end 62 of this lever is connected via a linkage 63 to an extendable pivot lever 64, on which the load rollers 23, 24 are mounted and, on the other hand, is articulated at 65 above in the fork-shaped load-bearing arms.
  • the guide rollers 33, 34 can be seen.
  • the guideway is not shown in detail.
  • the two chassis supports 6, 7 are indicated.
  • the slot 29 can be seen in the fork arm back housing 11, which is thus guided in the direction of the double arrow 66.
  • two chains 67, 68 are provided which engage the housing 11 and are guided via chain wheels 69, 70 on a shaft 71 and further deflection wheels 123, 124.
  • the chains can be driven by a drive motor 72, namely back and forth in the direction of the arrow 73.
  • the load rollers 23, 24 and 45, 46 can also be seen in FIG. 14.
  • a vertical elongated hole 121 is arranged parallel to the slot 29 on each side in a chain intermediate piece 120 in order to enable such a movement. 14, the chain remains in height even when the guide rollers 33, 34 are lifted off.
  • a pin 122 which is arranged on the axis of the guide rollers 33, 34, engages in the elongated hole 121.
  • FIG. 2 is the initial position in which the load carrier assembly 8 is supported in the rest position and the load rollers 23, 24 are retracted.
  • the guide rollers 33, 34 are lifted off the guide tracks 35, 36 as an embodiment of the guide arrangement 18.
  • the lifting cylinder arrangement is actuated again in the sense of a retraction and with the load rollers 23, 24; 45, 46 and after lowering the guide rollers 33, 34, the load carrier assembly 8 is raised, so that the load can then be retracted into the contour of the industrial truck with stable support of the load.
  • the insert according to FIG. 9 is achieved in the sense of an extension, the load rollers 23, 24.
  • the vehicle is capable of being transported away, especially since the actual load is also deposited on the load supports 48, 49 (FIG. 15) and 76-78 (FIG. 9) according to the above statements.
  • the load supports are arranged edge by edge. They do not extend to the middle but are only short and outside. It is therefore included that the load rollers 23, 24; 45, 46 can drive through between such loads, even if they are extended.
  • Load supports are designated 76 to 78 in a lateral arrangement in FIG. 9. The same applies to FIG. 10.
  • FIG. 10 shows an industrial truck in a special embodiment. It has a mast 79, on which load carrying arms 109 are guided so as to be vertically movable in the embodiment with a lifting carriage.
  • These load-bearing arms 109 are designed in the form of a U which is open at the bottom. They differ from the load arms 21, 22 in that they are designed without load rollers, which are arranged on the wheel arms 110, 111.
  • This arrangement of lifting sledges and Load support arms 109 can be moved up and down in the directions of the double arrow 107 by a lifting device (not shown).
  • the load support arms 109 are shown in a position lifted from the wheel arms 110, 111 for clarity of illustration. In this embodiment, these wheel arms can be made shorter than the load support arms 109. Due to their profile, the load support arms 109 can be placed on the wheel arms 110, 111, so that a low retracted position is achieved.
  • the load carrier assembly 8 thus consists of the wheel arms 110, 111 and the mast 79, with the load carrier arms 109 then being able to be moved in height by means of the carriage of the mast in view of this load carrier assembly.
  • the wheel arms 110, 111 are provided with retractable and extendable load rollers 23, 24 and the load carrier assembly with the lifting frame 79 has guide rollers 33, 34 which are also movable in the sense of the previously described embodiment.
  • lifting drive is on 15, 16 for the guide rollers 33, 34 and the load bearing rollers 23, 24 for movement in the sense of the double arrows 106, 108 shown, the guide rollers relative to the load carrier assembly with the mast 79, comparable to the housing 11 described so far, are movable.
  • FIG. 11 shows a previously described industrial truck 4 with the vehicle body 5, with the drive and steering wheel 17 and the chassis support 7 with the wheels 15, 16.
  • the chassis support 7 is connected to the chassis support 6 through the side member 14 and also with the vehicle body 5 connected, the load carrier assembly 8 being movable outwards in the U-shaped cutout thereby created.
  • the load supports 76 to 78 are also shown on both sides.
  • guide arrangements 80, 81 are arranged in the form of an inwardly open U-shaped rail 82 or a compact carrier 83.
  • two feed rolls 84, 85 (FIG. 12) and 86, 87 (FIG. 13) are given.
  • the two guide rollers run on a swivel slide 88 within the flanks 89, 90 of the U-shaped rail 82, so that they are able to hold the fork-shaped load-bearing arms 21, 22 in their aligned position, even if the load rollers 23, 24; 45, 46 are in the position raised from the ground.
  • the load rollers 23, 24; 45, 46 can be extended by a special drive 98, for example in the form of a spindle drive of your choice, when the running-in process is completed and the load is then taken up.
  • the swivel slide forms the guide for the fork-shaped load-bearing arms 21, 22; it can be rigidly connected to them.
  • the expression swivel carriage expresses a certain degree of adaptability, which is preferred, so that the fork-shaped load bearing arms 21, 22 have a certain possibility of evasion if the load on the load bearing arms occurs higher than normal. In addition, this gives flexibility when moving with a load when the load rollers move over larger bumps.
  • the swivel slide 88 has rigid sensors or stop elements 91 directed outwards, which are supported at their ends by springs 92, 93, which are supported on the other hand in the housing 11.
  • an average horizontal setting remains depending on the strength of the springs 92, 93 the fork-shaped load-bearing arms 21, 22 are maintained. If, as described, or incorrect operation, a housing deviation from this central position would result from heavy loading, end stops 94, 95 for the rigid sensors or stop elements 91, which are likewise arranged in the housing, become effective.
  • a support lever for the load rollers which is articulated on the fork-shaped load support arms 21, 22, is connected to a pull linkage 96, 97, one in each load support arm, and this pull linkage is in turn connected to the drive with its own drive.
  • This can be a hydraulic piston drive or a motor for mother drive, which drives the end of a pull rod, which is designed as a spindle.
  • the compact carrier 83 is provided, on which the guide rollers 86, 87 run at the top. They are located on a carrier 99 corresponding to the swivel slide 88 in Fig. 12. On this carrier a spring-loaded counter pressure roller 101 is arranged at the bottom, which presses the two guide rollers 86, 87 against the top 110 of the compact carrier 83, so that the parallel guidance of in Fig. 13 load fork arms 21, 22, not shown, can be effected.

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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)
EP88119544A 1987-12-03 1988-11-24 Flurförderzeug zur seitlichen Lastaufnahme Expired - Lifetime EP0318823B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3740979 1987-12-03
DE19873740979 DE3740979A1 (de) 1987-12-03 1987-12-03 Flurfoerderzeug zur seitlichen lastaufnahme

Publications (2)

Publication Number Publication Date
EP0318823A1 EP0318823A1 (de) 1989-06-07
EP0318823B1 true EP0318823B1 (de) 1991-06-05

Family

ID=6341808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119544A Expired - Lifetime EP0318823B1 (de) 1987-12-03 1988-11-24 Flurförderzeug zur seitlichen Lastaufnahme

Country Status (3)

Country Link
US (1) US4998858A (enrdf_load_stackoverflow)
EP (1) EP0318823B1 (enrdf_load_stackoverflow)
DE (2) DE3740979A1 (enrdf_load_stackoverflow)

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DE102016125157A1 (de) * 2016-12-21 2018-06-21 Jungheinrich Aktiengesellschaft Flurförderzeug zum Drehen von Paletten
JP6748919B2 (ja) * 2017-01-13 2020-09-02 清水建設株式会社 水平搬送台車
JP6936599B2 (ja) * 2017-03-28 2021-09-15 清水建設株式会社 水平搬送台車
JP2018165197A (ja) * 2017-03-28 2018-10-25 清水建設株式会社 水平搬送台車
JP6936600B2 (ja) * 2017-03-28 2021-09-15 清水建設株式会社 水平搬送台車
WO2019010509A1 (de) * 2017-07-13 2019-01-17 Amx Automation Technologies Gmbh Hub- und transportvorrichtung zum transport von transportgütern
JP6933432B1 (ja) * 2020-04-24 2021-09-08 三菱ロジスネクスト株式会社 フォークリフト用アタッチメント
DE102020206306A1 (de) * 2020-05-19 2021-11-25 Continental Teves Ag & Co. Ohg Fahrerloses Transportfahrzeug mit einer Nutzlast-Hubvorrichtung.
CN112849870A (zh) * 2020-12-25 2021-05-28 北京京东乾石科技有限公司 一种搬运装置、仓储物流系统及托盘搬运方法
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Also Published As

Publication number Publication date
DE3863169D1 (de) 1991-07-11
DE3740979A1 (de) 1989-06-22
DE3740979C2 (enrdf_load_stackoverflow) 1992-07-09
US4998858A (en) 1991-03-12
EP0318823A1 (de) 1989-06-07

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