EP0595611B1 - Lasthandhabungsfahrzeug - Google Patents

Lasthandhabungsfahrzeug Download PDF

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Publication number
EP0595611B1
EP0595611B1 EP93308552A EP93308552A EP0595611B1 EP 0595611 B1 EP0595611 B1 EP 0595611B1 EP 93308552 A EP93308552 A EP 93308552A EP 93308552 A EP93308552 A EP 93308552A EP 0595611 B1 EP0595611 B1 EP 0595611B1
Authority
EP
European Patent Office
Prior art keywords
carriage
mast
load handling
rollers
spigot
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
EP93308552A
Other languages
English (en)
French (fr)
Other versions
EP0595611A1 (de
Inventor
Neville Sir Bowman Shaw
James Clarke
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.)
BOSS UK HOLDING COMPANY LIMITED
Original Assignee
Boss Group Ltd
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 Boss Group Ltd filed Critical Boss Group Ltd
Publication of EP0595611A1 publication Critical patent/EP0595611A1/de
Application granted granted Critical
Publication of EP0595611B1 publication Critical patent/EP0595611B1/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
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/18—Load gripping or retaining means
    • B66F9/186—Container lifting frames
    • 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 a load handling vehicle of the kind comprising a lifting mast and a carriage movable up and down the mast, the carriage having mounted thereon a load engaging means.
  • Load handling vehicles of this kind are utilised in a wide variety of load handling applications with the load engaging means which is mounted on the carriage having a variety of different configurations depending upon the particular application of the load handling vehicle.
  • Load handling vehicles may be designed to handle large freight containers and similar standardised loads which can be stored in a stack. For example, empty freight containers are frequently stored in stacks of up to eight containers high. When such containers are stacked, it is necessary that the containers are accurately aligned one above the other. When a load handling vehicle is being operated to place a container onto the top of the stack, it is essential that the container is accurately aligned both translationally and rotationally with the container underneath. In some known load handling vehicles this requires the operator of the vehicle accurately to align the entire vehicle relative to the stack and this can be a time consuming operation requiring the vehicle to be moved a number of times so as to locate the container squarely above the container underneath. This is a particular problem with very large containers, for example containers about 12 meters (40 feet) long, since a small rotational movement of the vehicle will cause a large rotational movement of the container.
  • the present invention aims to provide a load handling vehicle which is capable of at least partly alleviating the problems in the prior art discussed hereinabove by providing a slewing system for a load handling vehicle which can be utilised in a wide variety of load handling applications and load handling vehicle constructions.
  • the present invention provides a load handling vehicle including a lifting mast, a carriage which is mounted for movement up and down the mast, the carriage incorporating or being adapted to mount thereon a load engaging means, and a roller or slider assembly comprising a plurality of rollers or sliders mounted on each upright side of the carriage and received in the mast for movement of the carriage therealong; characterised in that slewing means are provided for slewing the carriage relative to the mast about a substantially vertical axis, and the slewing means comprises means for moving the rollers or sliders forwards or backwards relative to the carriage on at least one upright side of the carriage.
  • the slewing means comprises translationally movable rollers eccentrically mounted on a spigot which is rotatably mounted in the carriage, whereby rotation of the spigot causes eccentric translational movement of the roller mounted thereon.
  • the slewing means includes a hydraulic cylinder assembly which is arranged to rotate each spigot.
  • the hydraulic cylinder assembly is connected to each spigot by a respective operating arm fixed to the respective spigot and a link rod pivotally mounted to the piston of the hydraulic cylinder assembly and to the operating arm.
  • two rollers are mounted on the at least one upright side of the carriage and the hydraulic cylinder assembly is a double acting hydraulic cylinder which is arranged simultaneously to rotate both of the two rollers.
  • the carriage has mounted thereon load engaging means such as a gantry or a side lift attachment for freight container handling.
  • load engaging means such as a gantry or a side lift attachment for freight container handling.
  • a load handling vehicle 2 comprises a chassis 4 supported on front and rear wheels 6,8.
  • a telescopic lifting mast assembly 10 which may be of any known construction, such as a simplex, duplex, triplex or quadruple mast, is fitted to the chassis 4 and a carriage 12 is mounted between a pair of mast uprights 14 of the mast assembly 10 so as to be movable up and down the mast uprights 14 in known manner.
  • mast-mounted carriages for example fork carriages, gantrys for supporting containers, fork frames, carriages for supporting load engaging attachments, such as side lift attachments or front lift attachments, or any other mast-mounted carriers.
  • this shows a carriage 12 (which is a modification of that shown in Figure 1) to which is mounted a load engaging means 16 in the form of a freight container side lift attachment instead of the lifting forks shown in Figure 1.
  • the carriage 12 has mounted thereon a roller or slider assembly which in the illustrated embodiment comprises, on each vertical side of the carriage 12, a pair of vertically spaced rollers 20,20' which are free rolling and are received in a respective channel 22 defined in each of the pair of mast uprights 14.
  • the rollers may alternatively be replaced by sliders in the form of slider shoes.
  • the carriage 12 is adapted to be slewed, i.e.
  • a slewed position of the load 24 is shown in phantom in Figure 2.
  • the carriage 12 is not shown in its slewed position.
  • the slewing causes at least one upright side of the carriage 12 to be moved forwards or backwards relative to the mast assembly 10. It will be apparent that a relatively small distance of rotational movement of the carriage 12 as a result of the slewing movement will cause a relatively large movement of the end of the load 24 when the load 24 is long, for example, when the load 24 is a freight container. This enables the load 24 readily to be correctly oriented in position by slewing movement of the carriage 12 rather than by movement of the entire vehicle 2.
  • the construction and operation of slewing carriage 12 is described below in greater detail with reference to Figures 3 to 5.
  • the carriage 12 is, in the illustrated embodiment, of substantially rectangular form comprising a pair of horizontally spaced upright members 28,30 connected together by a pair of vertically spaced horizontal members 32,34.
  • One of the upright members 28, in Figure 3 the left-hand upright member carries one of the pairs of vertically spaced rollers 20 which are, in use, received in the channel 22 of one of the mast uprights 14.
  • the other upright member 30 similarly carries the second pair of rollers 20' which are, in use, received in the channel 22 of the other mast upright 14.
  • Each roller 20' of the second pair is mounted for free rolling rotational movement on a fixed axle 35 carried on the upright member 30.
  • Each roller 20 of the said one pair is mounted for free rolling rotational movement on a respective spigot 36 with the rollers 20 both being disposed on the outwardly directed vertical side 37 of the upright member 28.
  • Each spigot 36 extends through and is rotatably mounted in the upright member 28.
  • Figure 4 which is a part sectional view on line A-A of Figure 3, at the inwardly directed vertical side 39 of the upright member 28 each spigot 36 has an operating arm 38 mounted thereon.
  • Each operating arm 38 is rotationally fixed relative to the respective spigot 36.
  • Each operating arm 38 has pivotally mounted by means of a pivot joint 43 thereon a link rod 40 which in turn is pivotally mounted by means of a pivot joint 41 to a respective end 42 of a common piston 44 of a double acting hydraulic cylinder assembly 46, of known construction, which is mounted by a mounting device 48 to the inwardly directed surface 50 of the upright member 28 of the carriage 12.
  • the pivot connections between the double acting hydraulic cylinder assembly 46 and the two operating arms 38 are of opposite rotational directions for each of the two spigots 36.
  • each spigot 36 includes at one end thereof a cylindrical portion 52 constituting an axle for carrying a respective roller 20.
  • a shoulder portion 54 is adjacent to the cylindrical portion 52 and a thrust washer 56 is mounted on the spigot 36 between the shoulder portion 54 and the upright member 28.
  • a second cylindrical portion 58 shown in phantom in Figure 5, extends through the upright member 28 and is rotatably supported therein by a pair of bushes 60,62 located on opposed sides of the upright member 28.
  • the second cylindrical portion 58 constitutes an axle of the spigot 36 in the upright member 28.
  • An end portion 64 for mounting an operating arm 38 thereto is spaced from the upright member 28 by a second thrust washer 66 and the operating arm 38 is fixed thereto.
  • the operating arm 38 is rotationally fixed relative to the spigot 36 by a pin connection (not shown).
  • Figure 5 also shows the pivot joint 43 between the operating arm 38 and the link rod 40, and the pivot joint 41 between the link rod 40 and the piston 44.
  • An example of the off-set distance between the common axis 68 of the roller 20 and the cylindrical portion 52 and the axis of rotation 70 of the spigot 36 is 21 mm.
  • This eccentric mounting of the roller 20 on the spigot 36 in the upright member 28 enables the roller 20 to be moved by a camming-type action translationally forwards or backwards relative to the upright member 28 thereby to enable the carriage 12 to be slewed relative to the mast uprights 14.
  • each roller 20 mounted on the upright member 28 may be disposed in a neutral position (position N) with the axis 68 of the roller 20 being located vertically above the axis 70 of the spigot 36. In this orientation the carriage 12 is parallel to and aligned with the mast assembly 10.
  • rollers 20 are held captive in the channel 22, translational movement of the rollers 20 relative to the carriage 12 causes the side of the carriage 12 carrying the rollers 20 to be moved forwards or backwards relative to the respective mast upright 14 thereby causing slewing of the carriage 12 on the mast assembly 10.
  • Such a camming-type action of the rollers 20 in the respective mast upright 14 enables the slewing position of the carriage 12 reliably and rapidly to be controlled by the operator.
  • the total angular movement X shown in Figure 4 of each operating arm 38 between the forward and backward positions of the rollers 20 is preferably 90°. This corresponds to an angular movement of the operating arms 38 of +/- 45° about the neutral position of the operating arm 38.
  • this corresponds to +/- 21 mm forwards and backwards movement of the upright member 28 of the carriage 12 relative to the respective mast upright 14.
  • this corresponds to a slew at the ends of the container of +/- 150 mm (represented by the distance d in Figure 2).
  • the present invention provides an elegant and simple construction for enabling slewing of a carriage in a mast of a load handling vehicle.
  • a hydraulic cylinder assembly 46 is employed to drive the operating arms 38, it will be readily understood by the man skilled in the art that other driving devices can be employed instead of a hydraulic cylinder assembly.
  • the illustrated embodiment enables the carriage to be slewed by translational movement of one side of the carriage relative to the mast assembly whilst the other side of the carriage remains translationally fixed relative to the mast assembly.
  • the present invention has been illustrated with reference to a load handling vehicle having a mast-mounted carriage in the form of a fork frame which carries forks, the present invention has application in the provision of a slewable mast-mounted carriage for a wide variety of uses.
  • the present invention could be used on general purpose load handling vehicles which employ a set of forks, in container handling wherein a top lift attachment is mounted on forks or a side lift attachment is mounted on the carriage.
  • the present invention could also be used in conjunction with a carriage in the form a gantry for container handling.
  • the carriage may be a fork carriage or a fork frame or any other mast-mounted carriage which is mounted between the mast uprights.
  • the present invention has particular application in handling of particularly long loads, for example empty freight containers. It will be apparent to the man skilled in the art that the provision of a slewing facility for a load handling vehicle provides advantages over known load handling vehicles in a wide variety of applications.
  • a slider assembly may be provided instead of the roller assembly.
  • the slider assembly includes sliders or shoes which are mounted on the carriage and are arranged to slide up and down the channels in the mast uprights, at the same time being translationally movable in a manner similar to the rollers shown herein.

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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)

Claims (7)

  1. Lasthandhabungsfahrzeug mit einem Hubmast (10), einem Schlitten (12), der am Mast (10) auf- und abbewegbar gelagert ist, wobei der Schlitten (12) eine Lastgreifeinrichtung (16) enthält oder zum Halten einer solchen geeignet ist, und mit einer Roll- oder Gleitanordnung (36), die eine Anzahl von Rollen oder Gleitern (20,20') aufweist, die an jeder aufrechten Seite (28,30) des Schlittens (12) angebracht und im Mast (10) zur Ausführung einer Bewegung des Schlittens längs desselben aufgenommen sind; dadurch gekennzeichnet, daß eine Schwenkeinrichtung zum Schwenken des Schlittens (12) bezüglich des Mastes (10) um eine im wesentlichen vertikale Achse vorgesehen ist, wobei die Schwenkeinrichtung eine Einrichtung (38,40,46) zum Verschieben der Rollen oder Gleiter (20) vorwärts und rückwärts bezüglich des Schlittens (12) an wenigstens einer aufrechten Seite (28) des Schlittens (12) aufweist.
  2. Lasthandhabungsfahrzeug nach Anspruch 1, bei welchem die Schwenkeinrichtung verschiebbare Rollen (20) aufweist und jede Rolle exzentrisch auf einem Zapfen (52) gelagert ist, der im Schlitten (12) drehbar gelagert ist, wobei eine Drehung des Zapfens (52) eine exzentrische Verschiebung der daran gelagerten Rolle (20) bewirkt.
  3. Lasthandhabungsfahrzeug nach Anspruch 2, bei welchem die Schwenkeinrichtung eine Hydraulikzylinderanordnung (46) aufweist, die zum Drehen jedes Zapfens (52) vorgesehen ist.
  4. Lasthandhabungsfahrzeug nach Anspruch 3, bei welchem die Hydraulikzylinderanordnung (46) mit jedem Zapfen (52) jeweils durch einen am entsprechenden Zapfen (52) befestigten Befestigungsarm (38) und eine Verbindungsstange (40) verbunden ist, die am Kolben (44) der Hydraulikzylinderanordnung (46) schwenkbar und am Betätigungsarm (38) angelenkt ist.
  5. Lasthandhabungsfahrzeug nach Anspruch 3 oder 4, bei welchem zwei Rollen (20) an der wenigstens einen aufrechten Seite (28) des Schlittens (12) gelagert sind und die Hydraulikzylinderanordnung (46) ein doppeltwirkender Hydraulikzylinder ist, der geeignet ist, beide Zapfen (52), welche die zwei Rollen (20) tragen, gleichzeitig zu drehen.
  6. Lasthandhabungsfahrzeug nach einem der vorangehenden Ansprüche, bei welchem der Schlitten (12) ein Bockgerüst oder Tor (gantry) bildet.
  7. Lasthandhabungsfahrzeug nach Anspruch 6, bei welchem am Schlitten (12) eine Seitenliftbefestigung zur Frachtbehälterhandhabung angebracht ist.
EP93308552A 1992-10-28 1993-10-27 Lasthandhabungsfahrzeug Expired - Lifetime EP0595611B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9222753 1992-10-28
GB9222753A GB2271979B (en) 1992-10-28 1992-10-28 Improvements in load handling vehicles

Publications (2)

Publication Number Publication Date
EP0595611A1 EP0595611A1 (de) 1994-05-04
EP0595611B1 true EP0595611B1 (de) 1999-02-10

Family

ID=10724263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93308552A Expired - Lifetime EP0595611B1 (de) 1992-10-28 1993-10-27 Lasthandhabungsfahrzeug

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Country Link
EP (1) EP0595611B1 (de)
DE (1) DE69323469T2 (de)
ES (1) ES2129501T3 (de)
GB (1) GB2271979B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102030287A (zh) * 2009-09-24 2011-04-27 周超 用于搬运袋装物堆垛的设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB862146A (en) * 1958-10-13 1961-03-01 Yale & Towne Mfg Co Industrial lift trucks
DE8005631U1 (de) * 1980-03-01 1989-12-28 Kaup GmbH & Co KG Gesellschaft für Maschinenbau, 8750 Aschaffenburg Containertraggerät für einen Hublader

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2059150A (en) * 1933-07-08 1936-10-27 Yale & Towne Mfg Co Truck
FR1038163A (fr) * 1951-06-06 1953-09-25 Cie Gen De Constr De Fours Dispositif de manoeuvre de l'élément porteur de charge pour chariots élévateurs
US3083853A (en) * 1960-06-06 1963-04-02 Clark Equipment Co Load engaging apparatus for lift trucks
GB1423513A (en) * 1972-02-02 1976-02-04 Lancer Boss Group Ltd Load lifting attachments
US4019786A (en) * 1975-04-30 1977-04-26 Towmotor Corporation Shielded side thrust roller assembly for lift truck mast units
DE8005629U1 (de) * 1980-03-01 1989-12-07 Kaup GmbH & Co KG Gesellschaft für Maschinenbau, 63741 Aschaffenburg Lastaufnahmeeinrichtung für Hublader
FR2537120B1 (fr) * 1982-12-03 1986-08-01 Manitou Bf Dispositif d'auto-alignement de conteneurs pour chariot de manutention

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB862146A (en) * 1958-10-13 1961-03-01 Yale & Towne Mfg Co Industrial lift trucks
DE8005631U1 (de) * 1980-03-01 1989-12-28 Kaup GmbH & Co KG Gesellschaft für Maschinenbau, 8750 Aschaffenburg Containertraggerät für einen Hublader

Also Published As

Publication number Publication date
GB9222753D0 (en) 1992-12-09
GB2271979A (en) 1994-05-04
DE69323469D1 (de) 1999-03-25
GB2271979B (en) 1996-06-19
EP0595611A1 (de) 1994-05-04
ES2129501T3 (es) 1999-06-16
DE69323469T2 (de) 1999-08-05

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