EP0000321B1 - Dispositif de manutention d'objets destiné au chargement et déchargement de véhicules de transport - Google Patents

Dispositif de manutention d'objets destiné au chargement et déchargement de véhicules de transport Download PDF

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Publication number
EP0000321B1
EP0000321B1 EP78850004A EP78850004A EP0000321B1 EP 0000321 B1 EP0000321 B1 EP 0000321B1 EP 78850004 A EP78850004 A EP 78850004A EP 78850004 A EP78850004 A EP 78850004A EP 0000321 B1 EP0000321 B1 EP 0000321B1
Authority
EP
European Patent Office
Prior art keywords
conveyer
load
goods
supporting
handling
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
Application number
EP78850004A
Other languages
German (de)
English (en)
Other versions
EP0000321A1 (fr
Inventor
Claes Fredrik Nordström
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.)
APL SYSTEM AKTIEBOLAG TE GOTENBURG, ZWEDEN.
Original Assignee
Claes Fredrik Nordström
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 Claes Fredrik Nordström filed Critical Claes Fredrik Nordström
Publication of EP0000321A1 publication Critical patent/EP0000321A1/fr
Application granted granted Critical
Publication of EP0000321B1 publication Critical patent/EP0000321B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G67/00—Loading or unloading vehicles
    • B65G67/02—Loading or unloading land vehicles
    • B65G67/04—Loading land vehicles
    • B65G67/20—Loading covered vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G13/00—Roller-ways
    • B65G13/11—Roller frames
    • B65G13/12—Roller frames adjustable

Definitions

  • This invention relates to a load-handling apparatus for loading and unloading of transport vehicles, particularly palletized goods but also other goods which like palletized goods permit the insertion of lift arms beneath the goods between said goods and a base.
  • the problem underlying the invention is that the loading and unloading systems utilized at present require an expensive and relatively heavy equipment which is fixedly mounted on the vehicle platform; besides they are relatively slow and require heavy manual work. By their fixed mounting on the vehicle they restrict the usefulness of the vehicle for transporting goods of varying kind, such as gravel in alternation with palletized goods.
  • a loading device has been suggested in GB-A-1 316 267 in which a so-called “slipper device”, provided with rollers on its upper and lower surfaces can be positioned beneath palletized goods, and its upper roller carrying surface can be raised to allow goods to be rolled along it.
  • a mobile conveyer comprising a frame and a longitudinally extensible, so-called “bellows type” structure, viz.
  • This device can also be used for unloading and then requires that the goods are lifted onto the "bellows type" conveyer.
  • a variant of this loading apparatus includes instead of the "bellows type” conveyer a pivotally mounted belt conveyer, the loading apparatus being positioned laterally of the vehicle with the conveyer pivoted so as to extend inwardly over the platform.
  • This conveyer requires that the vehicle platform is accessible from the side and necessitates heavy manual work for lifting off and lifting on goods, on loading and unloading.
  • belt conveyers which can be moved in over a vehicle platform longitudinally thereof either with a cantilever arm or an arm supported on the vehicle platform. Also in this case heavy manual work is required for lifting the goods at least when unloading is to be effected.
  • the object of the present invention is to provide an apparatus which may be used in a load handling system for relatively rapid and easy loading and unloading of goods of the kind indicated in the foregoing. Another object is to provide an apparatus which will eliminate heavy manual work and does not bind the vehicle to the transport of unitized goods, such as palletized goods or goods equivalent from the view point of handling.
  • the apparatus comprises, for lifting and moving palletized or other goods, a pair of load-handling members which are insertable from a supporting surface in a pair of through channels or equivalent openings of restricted width and height existing or arranged between the goods and the supporting surface for permitting insertion of the lift forks of a forklift truck of other lifting means beneath the goods, said load-handling members having the form of two substantially identical elongated parallel units each of which consists of a lower supporting section and an upper lifting section raisably and lowerably mounted on said supporting section, the lower supporting section (15) having supporting rollers (18) for supporting said apparatus movably on said supporting surface and said upper lifting section (16) having rollers (17) forming its upper surface for conveying goods along said upper surface, and is characterized in that the supporting sections of the two units are interconnected at their one end portions by a transverse connecting device so that the load-handling apparatus forms a fork-like structure with the two units extending from the transverse connecting device in parallel with and laterally spaced from one another, that the lifting
  • loaded pallets or other goods can be easily lifted and moved in relation to a supporting surface, for example from a load carrying platform of a lorry onto a loading dock, a conveyer or another load carrying vehicle.
  • An apparatus according to the invention can be supported on a load carrying platform of a vehicle for loading or unloading of goods or can be positioned at a loading or unloading station, such as a loading dock.
  • Fig. 1 illustrates a load-handling apparatus according to the invention, which in the embodiment illustrated comprises two relatively movable parts.
  • One part is a conveyer such as a roller conveyer 1 which has a fork-shaped front end conveyer section 2 comprising two or three parallel conveyor arms 2a, 2b, 2c which define a space or a pair of intervening grooves 3 for a fork-shaped conveyer extension 4 of the main conveyer 1.
  • the conveyer extension 4 can be protracted and retracted with regard to the conveyer 1 and is in the form of a fork-shaped conveyer which preferably comprises a pair of connected conveyer units of the type which is illustrated in Fig. 2 and 3 and will be described in detail.
  • the arms of the conveyer extension are movable in the space or spaces between the arms of the main conveyer 1.
  • the main conveyer 1 has, for example at the outer end portions of its arms 2a, 2b raisable and lowerable abutments 5 which can be protracted to stop the conveyance of pallets or other goods and can be retracted for allowing the goods to advance to the conveyer extension 4.
  • This conveyer extension 4 is movable in relation to the main conveyer 1 by means of a piston and cylinder unit 6 which may be of the hydraulic type and may have the form of a telescoping cylinder, if a large stroke length is desired.
  • the arms 4a, 4b of the conveyer extension 4 are provided at their front ends with retractable abutments which may be the front rollers of the conveyer extension 4.
  • the main conveyer 1 can be of decreasing height towards the front end thereof, which applies also to the conveyer extension 4 which, however, as will be explained with reference to Fig. 2 and 5 in an embodiment can be lowered more at one end if an inclination is desired when the goods are discharged.
  • said paller By raising the fork-shaped conveyer extension 4 to bring it to lift a pallet from the rollers 8 at the fork-shaped section 2 of the main conveyer 1, said paller can then be moved from the conveyer section 2 by means of the fork-shaped conveyer extension 4 by moving the latter forward by activation of the piston and cylinder unit 6.
  • the front abutments 5 on the main conveyer section 2 can be retractable or the abutments 5 may be sufficiently low to permit the conveyer extension 4 to lift the pallet over these abutments 5.
  • Fig. 2 shows an example of a conveyer and load-handling unit which may be used in the load-handling apparatus in Fig. 1.
  • the unit in Fig. 2 comprises s subframe 15 and a conveyer 16 which is raisable and lowerable in relation to the subframe and may be in the form of a roller conveyer.
  • One or more or all rollers 17 may be driven, e.g. by electric motors, and should preferably be drivable in opposite directions to permit both loading and unloading.
  • the subframe 15 may be in the form of a carriage having a number of supporting rollers or wheels 18, which advantageously may also be arranged to be driven.
  • the subframe 15 may include two laterally spaced beams 19 which should be interconnected only at the rear ends and not at the front (right-hand) ends shown in Fig. 2.
  • the raisable conveyer 16 may fundamentally be of the same construction as its supporting subframe 15 and two units according to Fig. 4 may be connected at one end with means such as connecting means 9 in Fig. 4 to form the fork-shaped conveyer extension 4.
  • the subframe 1 5 and the raisable conveyer 16 are interconnected by means of a number of longitudinally spaced levers or links 21 which are pivotally connected to both the subframe and the conveyer.
  • links 21 constitute draw links by means of which the conveyer 16 may be raised and lowered in relation to the subframe 15 5 by exerting a force on the conveyer 16 in the longitudinal direction with respect to the subframe 15.
  • said force can be exerted by means of one or more hydraulic cylinders 22 which are supported in one or both beams 19 (which may be for example inverted U beams).
  • the piston rod 23 has a head 24 which extends upwardly for exerting pressure against the underside of the corresponding conveyer beam 20 when the piston and the piston rod 23 are retracted into the cylinder 22.
  • the head 24 of the piston rod is accommodated between the flanges of the corresponding U beam 20 of the conveyer 16, and the stop means 26 can be accommodated in a similar way or can lie at the outer side of the opposite beam 20.
  • the means 24 and 26 shall not reach with their upper ends above the rollers 17 when the load-handling apparatus 19 is collapsed, in order not to preclude using the load-handling apparatus in the manner described in the following.
  • a pair of load-handling units according to Fig. 1 are intended to be connected to form the fork-shaped conveyer extension in Fig. 1 and should preferably be so dimensioned that the total height thereof, i.e. the height between the undersides of the wheels 18 of the subframe 15 and the upper sides of the rollers 17 of the conveyer 16, allows the introduction of the load-handling conveyer extension 4 in Fig. 1 with its arms 4a, 4b into such channels as are usually arranged in the subframes of pallets to facilitate handling of the pallets by forklift trucks, and more preferably the height is such that it will be possible to realize this introduction of the "fork" 4 of the load-handling apparatus in Fig. 1 when the pallets are positioned on a base.
  • the conveyer 16 i.e. each arm 4 of the conveyer extension 4 of the load-handling apparatus in Fig. 1, should be raised relative to the subframe 15 to a height sufficient to allow the pallets to go free from the vehicle platform when they are transferred to it.
  • the apparatus can simultaneously transfer two double rows of pallets with goods thereon.
  • the conveyers 16, i.e. the arms 4a, 4b of the load-handling apparatuses in Fig. 1 are then lowered onto the respective subframes 15.
  • the arms 4a, 4b of the conveyer extension of the load-handling apparatus can easily be withdrawn from the underside of a pallet, and it is even conceivable for the load-handling apparatuses to be withdrawn from the vehicle platform on their own support wheels 18 or by the conveyer rollers 17 if these are driven.
  • the rollers 17 in Fig. 2 that is the rollers 7 in Fig. 1 are to be used as transportation rollers
  • the height positions of the conveyers 16, Fig. 2 or arms 4a, 4b, Fig. 1 are first so adjusted that the respective rollers 17 or 7 only engage the undersides of the pallets with driving friction while the pallets with the majority of their weight rest on the vehicle platform.
  • loading and unloading may be carried out by means of the apparatus which is moved such that the fork-shaped conveyer extension 4 when protracted is moved in over the platform.
  • the upper conveyers 16 which forms upper part of the arms 4a, 4b, is lowered so that the pallets will stand on the platform and the apparatus or its fork-shaped extension 4 can be withdrawn.
  • For moving the load-handling apparatus in over the vehicle platform and for returning the load-handling apparatus use may be made of for example a rack transmission, a hydraulic cylinder or other suitable means, instead of the wheels 18 of rollers 17.
  • the fork-shaped conveyer extension 4 preferably is of a construction which will permit articulation of its arms 4a, 4b so as not to jam when introduced into the channels beneath the pallets. It may also be suitable to use electronic guards, such as electromagnets or photocells, for guiding the load-handling apparatus onto the vehicle platform so that the pallets with goods or unitized loads thereon when transferred to the vehicle platform move in predetermined paths.
  • electronic guards such as electromagnets or photocells
  • a supervising system for example photoelectrical
  • obstacles such as the operator's feet, legs etc.
  • the load-handling apparatus described in the foregoing is very flexible as it can be adapted to most of the goods conveyance systems on the market for transport vehicles of various kinds, including so-called trailer trains (tractors with trailers or semi-trailers), for unitized load-handling on pallets of the type "Europa-pall", railway waggons etc.
  • the full effective loading height of the transport vehicles can be exploited because the pallets can be moved only some centimetres above the surface of the vehicle platform during the loading and unloading operations.
  • the upper conveyer sections of the arms 4a, 4b, that is the upper conveyers 16 of the unit in Fig. 2 or Fig. 3, of the extension 4 are lowered with respect to the subframe, that is the subframe 15 in Fig. 2 or 3, for delivery of the goods.
  • the pallet can in this case rest on the conveyer extension 4 with the longitudinal axis of the pallet extending transversely of the conveyer extension 4.
  • the arms 4a, 4b of the conveyer extension can of course be used in the same way as has been described for the conveyers or units in Figs. 2 and 3.
  • any suitable drive means and transmission means such as chains, racks, gear wheels etc. and the conveyer described need not be roller conveyers.

Claims (1)

  1. Dispositif de chargement comprenant une paire d'éléments de chargement allongées qui pour le levage et le déplacement d'objets pallet- tisés ou similaires peuvent être introduits à partir d'une surface de support dans une paire de passages ou ouvertures équivalentes de largeur et de hauteur limitées qui ont prévus entre les objets et la surface de support afin de permettre l'introduction des fourches d'un chariot élévateur à fourches ou autre moyen élévateur par-dessous les objets, lesdits éléments de chargement étant sous forme de deux unités (15, 16) sensiblement identiques, allongées et parallèles dont chacune est constituée d'une partie de support inférieure (15) et d'une partie de levage supérieure (16) montée sur ladite partie de support de façon à pouvoir être élevée et abaissée, ladite partie de support inférieure (15) comportant des rouleaux (18) pour supporter ledit dispositif de façon déplaçable sur ladite surface de support et ladite partie de levage supérieure (16) comportant des rouleaux (17) formant sa surface supérieure pour permettre de transporter des objets le long de cette surface supérieure, caractérisé par le fait que les parties de support (15) des deux unités (15, 16) sont reliées entre elles à l'une de leurs portions d'extrémité par un moyen de liaison transversal de façon que le dispositif de chargement forme une construction similaire à une fourche, les deux unités (15, 16) s'étendant à partir dudit moyen de liaison transversal parallèlement et espacées latéralement l'une par rapport à l'autre, que les parties de levage (16) des deux unités (15, 16) peuvent être élevées et abaissées ensemble et que le dispositif de chargement en fourche (16c) forme une partie d'allongement d'un convoyeur (16a, 16b, 16c) susceptible d'être alongé téle- scopiquement.
EP78850004A 1977-06-27 1978-06-26 Dispositif de manutention d'objets destiné au chargement et déchargement de véhicules de transport Expired EP0000321B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7707375 1977-06-27
SE7707375A SE414019B (sv) 1977-06-27 1977-06-27 Lasthanteringsanordning

Publications (2)

Publication Number Publication Date
EP0000321A1 EP0000321A1 (fr) 1979-01-10
EP0000321B1 true EP0000321B1 (fr) 1982-12-08

Family

ID=20331692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78850004A Expired EP0000321B1 (fr) 1977-06-27 1978-06-26 Dispositif de manutention d'objets destiné au chargement et déchargement de véhicules de transport

Country Status (6)

Country Link
EP (1) EP0000321B1 (fr)
JP (1) JPS5442774A (fr)
AU (1) AU3750478A (fr)
BR (1) BR7804101A (fr)
DE (1) DE2862115D1 (fr)
SE (1) SE414019B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3247126A1 (de) * 1982-12-20 1984-06-20 Gebhardt Fördertechnik GmbH, 6920 Sinsheim Kombiniertes verteilergeraet fuer stueckgut
FR2575446B1 (fr) * 1984-12-27 1990-02-23 Loir Atel Chaudron Tolerie Ind Dispositif de chargement-dechargement rapide de vehicule
GB9015557D0 (en) * 1990-07-14 1990-08-29 Matthews Robin Palletised loading
DE9203913U1 (fr) * 1992-03-24 1992-07-02 Haro-Foerderelemente Hacklaender Rollen Gmbh, 5632 Wermelskirchen, De
NL2013797B1 (en) * 2014-11-14 2016-10-07 Tnt Holdings B V Cross-docking warehouse with loading bays.
US10894674B2 (en) 2017-03-20 2021-01-19 Berkshire Grey, Inc. Systems and methods for processing objects including transport vehicles
CN107651356A (zh) * 2017-10-17 2018-02-02 贵州莱利斯机械设计制造有限责任公司 一种阳极托盘输送机及输送方法
CN108163437A (zh) * 2018-01-22 2018-06-15 浙江恒天凡腾科技股份有限公司 一种染料粉末立体式仓储称量系统
CA3130153A1 (fr) 2019-02-27 2020-09-03 Berkshire Grey, Inc. Systemes et procedes permettant de commander le degorgement d'objets dans des recipients par mouvement vibratoire
CN115352905B (zh) * 2022-10-19 2023-02-07 四川藏区高速公路有限责任公司 可变距离公路物料输送装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1316267A (en) * 1969-07-15 1973-05-09 Sieder J S Load handling devices
BE757092A (nl) * 1969-10-07 1971-03-16 Pluimveeslachterij Wezep N V Transportbaan
FR2122015A5 (fr) * 1971-01-12 1972-08-25 Chapuis Transports
JPS5237419Y2 (fr) * 1973-02-22 1977-08-25

Also Published As

Publication number Publication date
AU3750478A (en) 1980-01-03
DE2862115D1 (en) 1983-01-13
SE7707375L (sv) 1978-12-28
EP0000321A1 (fr) 1979-01-10
JPS5442774A (en) 1979-04-04
BR7804101A (pt) 1979-01-16
SE414019B (sv) 1980-07-07

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