EP0751093A2 - Hebeeinrichtung, insbesondere für grosse Transporttaschen - Google Patents

Hebeeinrichtung, insbesondere für grosse Transporttaschen Download PDF

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Publication number
EP0751093A2
EP0751093A2 EP96109864A EP96109864A EP0751093A2 EP 0751093 A2 EP0751093 A2 EP 0751093A2 EP 96109864 A EP96109864 A EP 96109864A EP 96109864 A EP96109864 A EP 96109864A EP 0751093 A2 EP0751093 A2 EP 0751093A2
Authority
EP
European Patent Office
Prior art keywords
lifting
bags
frame
bag
tine
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Withdrawn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
EP96109864A
Other languages
English (en)
French (fr)
Other versions
EP0751093A3 (de
Inventor
Brian William Poulson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0751093A2 publication Critical patent/EP0751093A2/de
Publication of EP0751093A3 publication Critical patent/EP0751093A3/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Withdrawn legal-status Critical Current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
    • B66F9/18—Load gripping or retaining means

Definitions

  • Fertilizers and other fluent material are often transported from one site to another in bags. Recently, it has been proposed to pack such materials in bags which have a capacity of from 500 to 1500 Kgs or more.
  • Such large bags are handled by a fork lift or other mechanical handling machines, for example a front end loader on a tractor.
  • the bags can be lifted by their base, for example by sliding the tines of a fork lift truck under the outer edges of the base of the bag.
  • this carries the risk that the tines may tear the material of the base of the bag and result in loss of the contents of the bag as it is lifted.
  • any tear or puncture in the bag wall will destroy its weather resistant properties and may result in water damage to the bag contents.
  • the bag is lifted by means of one or more lifting loops attached to the side walls of the bag.
  • the loop(s) extend above the top of the bag to provide upstanding lifting loop(s) into which the tine of a fork lift truck can be engaged. Whilst this reduces the risk of damage to the base of the bag, it may result in a comparatively high lifted structure. As a result, it may not be possible to lift the bag sufficiently to clear loading or truck platforms in low headroom locations.
  • several different lifting mechanisms have hitherto been required to accommodate different bags, adding to the cost and complexity of handling big bags.
  • the present invention provides a device for lifting a selectable number of bags containing a fluent material by means of the engagement of a lifting tine with a lifting loop carried by the bag, characterised in that the device comprises:
  • the term at or adjacent in respect of the location of the means by which the first frame is engaged by the lifting means is used herein to denote that the lifting means engages the frame within the bottom half of the first frame so that the lifting means can raise the frame substantially to the full lifting height of the lifting means.
  • the frame is secured to the lifting means by way of a lug or lugs located substantially at the basal edge of the frame, for example by means of pins passing through trunnions or the like carried by the base member of the frame.
  • a second point of engagement between the two at a point approximately a quarter to halfway up the height of the frame, for example by way of hooks carried by the frame which engage a cross bar or the like carried by the lifting means.
  • Other forms of attachment of the frame to the lifting means may be required with different forms of lifting mechanism and can readily be devised for each case.
  • the frame at the lowest position of the lifting means, the frame rests upon the ground, thus maximising the height to which the lifting device can lift the frame whilst enabling the bags lifted by the device of the invention to be lowered to the ground for disengagement of the lifting tines from the lifting tines of the bag.
  • the invention can be applied to a wide range of sizes and shapes of bags containing a wide range of fluent solid materials, for example resin powders or granules.
  • the invention is of especial application in the lifting of bags containing from 500 to 2000 Kgs of fertilizer which have a generally cylindrical or squared cross-section.
  • Such bags are typically made from a polypropylene fibre woven outer bag with one or more PVC or polyethylene sheet inner liners.
  • the bags also carry one or more lifting loops by which they are lifted. The loops can be affixed to the side walls of the bag or can extend around the base of the bag.
  • the first frame member of the device of the invention is typically a square or rectangular shaped steel box girder or similar frame.
  • the mounting points can be in the form of sockets or the like into which the base portion of the lifting tines engage or can be in the form of the weld joint by which the lifting tine is permanently secured to the frame member.
  • the engagement can be a screw, push, bayonet or any other suitable fit so that the tine can be secured in the mounting point or can be removably mounted for positional adjustment as described below.
  • the mounting points can be located away from the upper edge of the frame within the top quarter of the height of the frame, but this will reduce the height to which the lifting tines can be raised and may limit the locations at which the device can be used. It is therefore preferred that the mounting points be located upon the upper transverse member forming the frame structure.
  • the mounting points are to receive the lifting tines so that the latter project forwardly of the plane of the frame member, with the means by which the frame is mounted on the lifting means being located on the rearward face of the frame.
  • the vertical separation between the mounting points for the lifting tines and the means by which the frame is mounted on the lifting means is as great as is feasible.
  • the lateral spacing between the lifting tines is preferably adjustable so that the device can accommodate different sized bags.
  • the first frame member can be formed in two or more telescopic portions so that the frame can be expanded or contracted laterally to provide the desired lateral spacing between the lifting to tines to ensure that adjacent bags rest against one another when lifted.
  • the operator can provide two spaced apart tines, three closely spaced tines or a single central tine to lift two 1000Kg bags, three 500Kg bags or one 2000Kg bag respectively.
  • the lifting tines By mounting the lifting tines so that they can be demounted and inserted in other mounting points, it is thus possible to manufacture a frame which can accommodate a range of numbers and sizes of bags within a standard sized frame and with the minimum number of lifting tines.
  • the lifting tines can be simple round, squared or other cross-section elongate members, optionally having a basal mount for engagement with the mounting points.
  • the tines are of a round cross section and taper or have a tapered tip to assist engagement with the lifting loop of the bag.
  • the tines will be from 10 to 25% longer than the radius of the bag they are to lift. It desired, the tip of the tines may be curved upwards to reduce the risk of the loop sliding off the tine during use.
  • the mounting point can mount the tine at an angle of from 5 to 15° to the horizontal so that the lifting loops are biassed towards the first frame member.
  • the first frame member may be provided with other features to assist in the operation of the device of the invention.
  • the first frame member may be expansible and contractible vertically, for example by forming it as two telescopic top and bottom portions moveable with respect to one another by means of one or more hydraulic rams.
  • the frame can be collapsed vertically so as to present a small height for insertion through the open side of a curtain side wall truck for removal of bags from the platform of the truck.
  • the frame can then be expanded to assist raising of the bag to a greater height once free from the truck, for example in a store or the like.
  • the first frame extends in a generally vertical sense and has a second transverse frame member attached to it which is to carry the members for providing lateral support to the bags.
  • the second frame can be a simple rigid welded steel box girder frame or similar which is rigidly welded of otherwise secured to the first frame.
  • the lateral adjustment of the spacing between the support members can be achieved by forming the second frame as a laterally expansible and contractible frame operating under the influence of an hydraulic ram or the like and/or by forming the first frame as a laterally expansible and contractible frame which carries the portions of the second frame carrying the support members with it.
  • the second frame carries the support members on it in a manner which allows the lateral space between the support members to be adjusted to accommodate the number of bags which are suspended from the lifting tines of the first frame member.
  • the support members will engage the laterally outward face of the bag or bags suspended from the lifting tines, for example using two support members with the bags suspended between them in side to side touching relationship.
  • intermediate support members can be provided between adjacent bags of desired.
  • this is not usually necessary and that a pair of support members acting on the outward faces of the bag or row of bags will give adequate lateral support.
  • the invention will be described hereinafter in terms of the use of two support members.
  • the support members can take a wide range of sizes and shapes, but it is preferred to round or chamfer that face bearing against the walls of the bags so as to minimise the risk of puncture of the bag wall.
  • the support member comprises a vertical wall extending for 15 to 75 cms along the side wall of the bag and formed with an angled or curved face in contact with the wall of the bag.
  • the support member may have a rubber or other soft surface to reduce the risk of puncturing the wall of the bag and to minimise sliding of the bag past the support member.
  • the support member extends forwardly of the second frame member by any suitable distance, typically from 15 to 50 cms. If desired, the support member can comprise two or more arc shaped members carried by a vertical spacer, which is in turn carried by the second frame member.
  • the support member is slidably mounted upon the second frame member, for example by means of guide rails or channels on the forward face of the second frame member.
  • the position on the support member can thus be selected according to the number and size of the bags suspended from the lifting tines of the first frame.
  • the relative position of the support member upon the second frame can be fixed, for example by a clamping bolt or other releasable locking mechanism.
  • the support member can be moved with respect to the second frame by means of one or more hydraulic rams which lock the support member in the desired position.
  • the second frame member has been described above in terms of a separate frame to the first frame, it will be appreciated that the second frame member can take the form of one or more transverse rails carried by the first frame intermediate the top and bottom of the first frame member and which serve to support the support members.
  • the use of a second frame which provides two transverse rails to support the support members is preferred since this will reduce the risk of the support members twisting, which could occur when a single rail is used.
  • the device of the invention can readily and cheaply be made from steel box girders or the like to provide a simple and rigid framework and associated members which is rugged and easy to use.
  • the device can be used to lift a wide range of sizes and shapes of bags containing a wide range of materials. Due to the demountable nature of the lifting tines and the adjustability of the lateral positions of the support members, a single device can simply and easily be modified to handle different number and sizes of bags without the need for additional components or skilled labour.
  • the device of the invention thus readily lends itself to use on farms in the handling of fertilizer bags.
  • Figure 1 is a diagrammatic perspective view of the device and Figure 2 is a side elevation of the device of Figure 1.
  • the device comprises a generally upright rectangular shaped frame 1 made from horizontal and vertical box girder steel sections welded together.
  • the top section of the frame carries on its front face a series of forwardly projecting tubular sockets 2 into which tubular or solid steel lifting tines 3 are detachably mounted.
  • the sockets and the ends of the tines 3 can have screw threads or inter-engaging bayonet mountings.
  • the tine can be secured in position by a cross pin or bolt passing through the walls of the socket and the tine.
  • other numbers of sockets can be present having regard to the size and weight of the bags to be lifted.
  • the use of five sockets is especially preferred since this can be used to accommodate 500, 1000 and 2000 Kg bags as described above.
  • the frame 1 also carries on its rear face means by which the frame 1 can be connected to a lifting mechanism.
  • the lifting mechanism is a fork lift truck or the front end loader of a tractor.
  • the connection means can take any suitable form, but is mounted as close to the bottom edge of frame 1 as is practical so that the maximum lift from the lifting mechanism can be achieved and so that the bags suspended from the lifting tines 3 can be lowered onto the ground.
  • the connection means shown in Figure 2 comprises a hook member which hooks over a cross bar on the fork lift rise and fall mechanism and a pair of lugs which can be connected by a clevis pin or the like to lock the frame 1 onto the rise and fall mechanism.
  • a transverse second frame member 4 which comprises two parallel transverse rails and upright end members to form a rectangular frame.
  • two metal cheek pieces 5 which have a triangular shape or could have the face opposed to the bags suspended from tines 3 as a curved face. If desired, that face can have rounded corners and/or a rubber or other soft surface to reduce the risk of snagging of the bag wall on member 5 and sliding of the bag upon member 5.
  • the position of member 5 upon the transverse rails can be adjusted by means of a releasable locking mechanism, for example a clamping bolt or the like (not shown).
  • the device is dimensioned to accommodate up to three 1000 Kg bags, with the lifting tines 3 in the position shown in Figure 1, in which case members 5 will be located at or adjacent the end of the transverse rails of frame 4.
  • the device can be adapted to lift a single 2000 Kg bag.
  • the laterally outward ends of the first and second frame members may extend beyond the width of the single bag and present a hazard during use. It may therefore be desirable to form the laterally outward ends of the frames as demountable portions or telescopic portions so that the excessive width of the frames can be reduced to that of the bag.
  • the device is made from steel components and can be sized to suit the intended use of the device. Since several different permutations of sizes and number of bag to be lifted can be accommodated in a single device, the user need only purchase a single standard device which can be readily altered on site to accommodate different loads.

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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)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Fertilizing (AREA)
EP96109864A 1995-06-20 1996-06-19 Hebeeinrichtung, insbesondere für grosse Transporttaschen Withdrawn EP0751093A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9512467.3A GB9512467D0 (en) 1995-06-20 1995-06-20 Forklift bag lifter & transporter attachment
GB9512467 1995-06-20

Publications (2)

Publication Number Publication Date
EP0751093A2 true EP0751093A2 (de) 1997-01-02
EP0751093A3 EP0751093A3 (de) 1998-08-26

Family

ID=10776316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96109864A Withdrawn EP0751093A3 (de) 1995-06-20 1996-06-19 Hebeeinrichtung, insbesondere für grosse Transporttaschen

Country Status (2)

Country Link
EP (1) EP0751093A3 (de)
GB (1) GB9512467D0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115849257A (zh) * 2023-03-03 2023-03-28 河南巨人起重机集团有限公司 一种稳固型物料搬运装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440681A (en) * 1945-10-15 1948-05-04 Roy F Gordon Combined truck and elevator
US4194652A (en) * 1977-07-07 1980-03-25 Super Sack Manufacturing Corporation Collapsible receptacle for flowable materials
DE7920912U1 (de) * 1979-07-21 1987-10-29 Kaup GmbH & Co KG Gesellschaft für Maschinenbau, 8750 Aschaffenburg Vorsatzgerät mit einem Lasthalter
DK148880C (da) * 1979-12-05 1986-04-07 Miller Weblift Ltd Beholder til massegods
GB2161452A (en) * 1984-07-09 1986-01-15 Humber Fabrics Ltd Bulk container bags
IE65093B1 (en) * 1991-01-04 1995-10-04 Grassland Res Palletising method and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115849257A (zh) * 2023-03-03 2023-03-28 河南巨人起重机集团有限公司 一种稳固型物料搬运装置

Also Published As

Publication number Publication date
GB9512467D0 (en) 1995-08-23
EP0751093A3 (de) 1998-08-26

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