EP0053009A2 - A load lifting attachment for use with a fork lift truck, hoist, crane or the like - Google Patents

A load lifting attachment for use with a fork lift truck, hoist, crane or the like Download PDF

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Publication number
EP0053009A2
EP0053009A2 EP81305472A EP81305472A EP0053009A2 EP 0053009 A2 EP0053009 A2 EP 0053009A2 EP 81305472 A EP81305472 A EP 81305472A EP 81305472 A EP81305472 A EP 81305472A EP 0053009 A2 EP0053009 A2 EP 0053009A2
Authority
EP
European Patent Office
Prior art keywords
forks
attachment
engaged
load
fork
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Withdrawn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
EP81305472A
Other languages
German (de)
French (fr)
Other versions
EP0053009A3 (en
Inventor
John Henry Davis
Garry Lee Davis
Original Assignee
DAVIS GARRY LEE
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 DAVIS GARRY LEE filed Critical DAVIS GARRY LEE
Publication of EP0053009A2 publication Critical patent/EP0053009A2/en
Publication of EP0053009A3 publication Critical patent/EP0053009A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
    • 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

  • This invention relates to an attachment capable of being quickly and easily fitted to the forks of a fork lift truck so as to enable a load to be suspended from the said forks and lifted or lowered by raising and lowering the forks which serve as a jib.
  • the attachment may also with advantage be used separately with a hoist or crane. With both its uses the load is spread evenly between lifting points on the attachment so as to be evenly balanced and manipulated and controlled.
  • a load lifting attachment for use with the fork lifts of a fork lift truck, or with a hoist or crane, that comprises a main member adapted at each of its two ends to be engaged with the forks of a fork lift truck and provided at each of said ends with a shackle or the equivalent to which load lifting chains, ropes or the like can be engaged and the load spread and distributed, said main member being fitted centrally between said ends with a hook mounted in such a manner that in one position in which it can depend from said member, it can be used as a lifting hook, or in an alternative position into which it can be swung upwardly to extend above said member, can be engaged with a hoist or crane and a load raised by chain or ropes connected with said shackles.
  • the attachment thus enables a load to be lifted in say one of three different ways viz, by connecting the attachment to the fork lifts of a fork lift truck and coupling the load to the two end shackles; by coupling the attachment to said forks and using said centrally disposed hook in its downwardly directed position, or using the attachment separately from a fork-lift truck with the hook in an upwardly directed position and engaged with a hoist or crane and a load coupled to said two end shackles on the attachment.
  • tie members are provided that facilitate fixing of the attachment to the forks of a fork-lift truck to prevent unintended movement of the attachment relatively to said forks, and also facilitate use of the attachment with varying sizes of forks of different fork-lift trucks.
  • the invention basically consists in providing a main member consisting of two laterally spaced apart angle section parallel beams 1 which are adapted, as hereinafter fully explained, to be quickly and esily securely attached, in a readily removable manner, to the forks 2 of a fork lift truck so as to enable said forks to be utilized as a jib and raise or lower a load connected to the attachment.
  • the beams 1 are formed centrally between their ends with aligned holes 3 for receiving a pivot pin 4 from which can be suspended a hook 5, preferably a swivel hook, with which a load (according to one use of the attachment) can be engaged.
  • These beams 1 can be of angle, channel or other suitable section metal members to bear a load and spread the latter over the fork area to give stability.
  • Plates 6 are fixed to the ends of the beams 1 and serve to hold the beams together and act as load spreaders, these plates 6 depending from the beams and each being formed adjacent to its lower end with a hole 7 through which can pass a suitable hook or shackle 8, the hole 7 preferably being triangular to take the pin end of the shackle 8 with which is engaged a load lifting chain or rope 8a.
  • two angle-section members 9 are used to join the plates 6 to the beams 1 where they meet to form sleeves that can be slid on to the forks 2.
  • Two angle section plates 10 ( Figure 4) are fixed to the back of the beams 1 and these plates 10 are formed with bolt holes 10a through which bolts can be engaged and passed through holes 15 at the front ends of ties 11 about to be referred to.
  • This Figura 4 illustrates how the attachment, by its hook 5 (which is reversed so as to extend upwardly from the beams), can be suspended from a hoist, or crane, so as to serve as a load spreader as diagrammatically illustrated by Figure 7.
  • the side plates 6 and the angle plates 9 are formed with holes 6a and 9a respectively for the reception of bolts that can tighten the attachment sideways and vertically on the forks 2 where they pass through said sleeves.
  • ties 11 ( Figures 5 (rear view) and 6 (front vieu)) are provided that are formed at their rear ends with abutments 12 that engage behind the forks to prevent the attachment sliding forwards and a bar 13 is fixed to the ties near the heel of the fork to prevent the tie 11 dropping down.
  • a transverse member 14 at the front of each tie is formed with the bolt hole 15 (previously referred to) to faciliatate fixing of the angle plates 10 of the attachment to the ties and for adjustment purposes.
  • the ties 11 When used the ties 11 are first placed over the forks 2 of a fork lift truck and the attachment is then slid over the forks and the attachment bolted to said forks and tightened to fit the attachment to different sizes of forks.
  • the fork lift can then be used as a crane by raising and lowering the forks.
  • attachment of this invention is that (a) it can be safely used in all industries where fork lift trucks are used; (b) it is ideal for use on occasions where the odd lift has to be made and where fork lift forks themselves are not suitable; (c) it is light in weight and can be quickly and easily fitted to, and subsequently removed from, a fork lift truck and (d) by reversing the hook 5, i.e. swinging it upwardly from its downwardly directed position shown in Figures 1, 2 and 6 to its upwardly directed position shown in Figures 4 and 7, the attachment can be used as a load spreader for general purpose work on a crane or hoist in a workshop, warehouse or elsewhere.
  • attachment has been described as being constructed from beams, end plates and angle pieces it will be appreciated that it may be designed to form these parts integrally as castings.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Jib Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

This invention relates to a load lifting attachment serving as a jib for use with fork lift trucks. Existing attachments are either intended to replace the forks of a truck or involve sliding a jib on to the forks. The drawbacks of both known arrangements are that they are heavy, cumbersome and expensive. These drawbacks are eliminated by the present invention that provides an attachment comprising a member adapted to each end to be engaged with a fork of a truck and fitted between said ends with a swivel hook that can be engaged with a hoist or crane or have a load suspended therefrom, each end of said member being provided with a shackle to which lifting ropes, chains or the like can be engaged and the load evenly spread, balanced and controlled.

Description

  • This invention relates to an attachment capable of being quickly and easily fitted to the forks of a fork lift truck so as to enable a load to be suspended from the said forks and lifted or lowered by raising and lowering the forks which serve as a jib.
  • As will hereinafter become apparent the attachment may also with advantage be used separately with a hoist or crane. With both its uses the load is spread evenly between lifting points on the attachment so as to be evenly balanced and manipulated and controlled.
  • According to the present invention there is provided a load lifting attachment for use with the fork lifts of a fork lift truck, or with a hoist or crane, that comprises a main member adapted at each of its two ends to be engaged with the forks of a fork lift truck and provided at each of said ends with a shackle or the equivalent to which load lifting chains, ropes or the like can be engaged and the load spread and distributed, said main member being fitted centrally between said ends with a hook mounted in such a manner that in one position in which it can depend from said member, it can be used as a lifting hook, or in an alternative position into which it can be swung upwardly to extend above said member, can be engaged with a hoist or crane and a load raised by chain or ropes connected with said shackles.
  • The attachment thus enables a load to be lifted in say one of three different ways viz, by connecting the attachment to the fork lifts of a fork lift truck and coupling the load to the two end shackles; by coupling the attachment to said forks and using said centrally disposed hook in its downwardly directed position, or using the attachment separately from a fork-lift truck with the hook in an upwardly directed position and engaged with a hoist or crane and a load coupled to said two end shackles on the attachment.
  • According to a preferred embodiment of the invention tie members are provided that facilitate fixing of the attachment to the forks of a fork-lift truck to prevent unintended movement of the attachment relatively to said forks, and also facilitate use of the attachment with varying sizes of forks of different fork-lift trucks.
  • To enable the invention to clearly be understood and readily carried into effect a preferred embodiment thereof will now be described by way of example with reference to the accompanying drawings, wherein:-
    • Figure 1 is a perspective view illustrating the general principle of the invention and one way of using the attachment,
    • Figure 2 is a perspective view of the attachment drawn to a larger scale,
    • Figure 3 illustrates how the attachment is formed with sleeves to enable it to be slid into position on the forks of a fork-lift truck,
    • Figure 4 shows how the attachment may be used independently of a fork lift and solely. in conjunction with a hoist or crane,
    • Figure 5 is a rear perspective view of tie members by which the attachment may be securely held in position on lift forks,
    • Figure 6 illustrates how the ties are fitted to lift forks and connected to the attachment after the latter is slid on to the forks, and
    • Figure 7 is a view showing the attachment used separately and engaged with a hoist or crane.
  • Referring firstly to Figure 1 which shows the attachment applied to a fork lift, the invention basically consists in providing a main member consisting of two laterally spaced apart angle section parallel beams 1 which are adapted, as hereinafter fully explained, to be quickly and esily securely attached, in a readily removable manner, to the forks 2 of a fork lift truck so as to enable said forks to be utilized as a jib and raise or lower a load connected to the attachment. The beams 1 are formed centrally between their ends with aligned holes 3 for receiving a pivot pin 4 from which can be suspended a hook 5, preferably a swivel hook, with which a load (according to one use of the attachment) can be engaged. These beams 1 can be of angle, channel or other suitable section metal members to bear a load and spread the latter over the fork area to give stability.
  • Plates 6 (Figure 2) are fixed to the ends of the beams 1 and serve to hold the beams together and act as load spreaders, these plates 6 depending from the beams and each being formed adjacent to its lower end with a hole 7 through which can pass a suitable hook or shackle 8, the hole 7 preferably being triangular to take the pin end of the shackle 8 with which is engaged a load lifting chain or rope 8a.
  • As shown in Figure 3, two angle-section members 9 are used to join the plates 6 to the beams 1 where they meet to form sleeves that can be slid on to the forks 2.
  • Two angle section plates 10 (Figure 4) are fixed to the back of the beams 1 and these plates 10 are formed with bolt holes 10a through which bolts can be engaged and passed through holes 15 at the front ends of ties 11 about to be referred to. This Figura 4 illustrates how the attachment, by its hook 5 (which is reversed so as to extend upwardly from the beams), can be suspended from a hoist, or crane, so as to serve as a load spreader as diagrammatically illustrated by Figure 7.
  • To enable the attachment to be secured to the forks 2 of a fork lift truck the side plates 6 and the angle plates 9 are formed with holes 6a and 9a respectively for the reception of bolts that can tighten the attachment sideways and vertically on the forks 2 where they pass through said sleeves. Due to the taper on the forks 2, ties 11 (Figures 5 (rear view) and 6 (front vieu)) are provided that are formed at their rear ends with abutments 12 that engage behind the forks to prevent the attachment sliding forwards and a bar 13 is fixed to the ties near the heel of the fork to prevent the tie 11 dropping down. A transverse member 14 at the front of each tie is formed with the bolt hole 15 (previously referred to) to faciliatate fixing of the angle plates 10 of the attachment to the ties and for adjustment purposes.
  • When used the ties 11 are first placed over the forks 2 of a fork lift truck and the attachment is then slid over the forks and the attachment bolted to said forks and tightened to fit the attachment to different sizes of forks. The fork lift can then be used as a crane by raising and lowering the forks.
  • Existing known attachments for use with fork lift trucks are adapted to replace the forks with a jib attachment, or involve sliding of another jib, with sleeves attached, on to existing forks. Both these known attachments are heavy, cumbersome and expensive.
  • Advantages of the attachment of this invention are that (a) it can be safely used in all industries where fork lift trucks are used; (b) it is ideal for use on occasions where the odd lift has to be made and where fork lift forks themselves are not suitable; (c) it is light in weight and can be quickly and easily fitted to, and subsequently removed from, a fork lift truck and (d) by reversing the hook 5, i.e. swinging it upwardly from its downwardly directed position shown in Figures 1, 2 and 6 to its upwardly directed position shown in Figures 4 and 7, the attachment can be used as a load spreader for general purpose work on a crane or hoist in a workshop, warehouse or elsewhere.
  • Although the attachment has been described as being constructed from beams, end plates and angle pieces it will be appreciated that it may be designed to form these parts integrally as castings.

Claims (5)

1. A load lifting attachment for use with the fork lifts of a fork lift truck, or with a hoist or crane, characterised in that it comprises a main member (1) adapted at each of its two ends (9) to be engaged with the forks (2) of a fork lift truck and provided at each of said ends with a shackle or the equivalent (8) to which load lifting chains, ropes or the like (8a) can be engaged and the load spread and distributed, said main member (1) being fitted centrally between said ends with a hook (5) mounted in such a manner that in one position in which it can depend from said member, it can be used as a lifting hook, or in an alternative position into which it can be swung upwardly to extend above said member, can be engaged with a hoist or crane and a load raised by chain or ropes 8a connected with said shackbs 8.
2. A load lifting attachment according to Claim 1, characterised in that tie members (11) are provided that facilitate fixing of the attachment to the forks (2) of a fork-lift truck to prevent unintended movement of the attachment relatively to said forks, and also to facilitate use of the attachment with varying sizes of forks of different fork-lift trucks.
3. A load lifting attachment according to Claim 1 or 2, further characterised in that said main member (1) comprises two laterally spaced apart parallel beams bridged between their ends by a pivot pin (4) on which is mounted a swivel hook (5) that when positioned to depend from said main member can be engaged with a suspended load and when raised to extend above said member can be engaged and suspended from a hoist or crane.
4. A load lifting attachment according to Claim 1, 2 or 3, characterised in that the main member (1) is formed with sleeves (9) that can be slid on to and engaged with the forks (2) of a fork lift truck.
5. A load lifting attachment according to Claim 3 and 4, characterised in that said beams constituting the main member (1) are connected together at each end by a plate, (6) said plate (6) and the adjacent sleeve (9) each being formed with a hole (6a and 9a respectively) for reception of bolts for tightening the attachment to said forks (2) where the latter pass through said sleeves (9).
EP81305472A 1980-11-21 1981-11-19 A load lifting attachment for use with a fork lift truck, hoist, crane or the like Withdrawn EP0053009A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8037368 1980-11-21
GB8037368 1980-11-21

Publications (2)

Publication Number Publication Date
EP0053009A2 true EP0053009A2 (en) 1982-06-02
EP0053009A3 EP0053009A3 (en) 1983-08-17

Family

ID=10517466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81305472A Withdrawn EP0053009A3 (en) 1980-11-21 1981-11-19 A load lifting attachment for use with a fork lift truck, hoist, crane or the like

Country Status (2)

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EP (1) EP0053009A3 (en)
GB (1) GB2089762B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2659950A1 (en) * 1990-03-26 1991-09-27 Longometal Sa DEVICE FOR HANDLING AND TRANSPORTING PROFILES, PARTICULARLY METALLURGICAL PROFILES.
EP0561921A1 (en) * 1990-12-10 1993-09-29 Panama Engineering Pty Limited Fork-lift attachment
FR2882351A1 (en) * 2005-02-24 2006-08-25 Tractionnaires Icaunais Lti Sa Lifting appliance e.g. power lift truck, accessory for transporting e.g. metal door, has slide with unit for maintaining and blocking plane object to be manipulated, and gripping unit gripped by lifting appliance and integrated to slide
CN103863972A (en) * 2013-12-18 2014-06-18 浙江吉利控股集团有限公司 Forklift hoisting tool and hoisting method thereof
JP2019014599A (en) * 2017-07-11 2019-01-31 オリエンタル白石株式会社 Carriage mounting jig for forklift and member carriage mounting method using the same
US10280055B2 (en) * 2017-05-02 2019-05-07 William von Eberstein Ball joint lifting assembly and method
JP2023061640A (en) * 2021-10-20 2023-05-02 大貫木材工業株式会社 Formwork hanging tool

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2489307C1 (en) * 2012-03-13 2013-08-10 Открытое акционерное общество "Конструкторское бюро специального машиностроения" Device for loading container-launchers on to ship launching unit
CN103030084A (en) * 2012-11-01 2013-04-10 宁波平海建材有限公司 Special hanging tool for multi-building-block once shaping mould
US10301157B1 (en) 2018-06-29 2019-05-28 Shane Kramer Tree carrying apparatus and method

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558388A (en) * 1949-11-29 1951-06-26 Lewis A Richardson Fork truck lift frame attachment
GB662560A (en) * 1949-03-30 1951-12-05 Ransomes & Rapier Ltd Improvements relating to fork trucks
FR1193943A (en) * 1959-11-05
US3019929A (en) * 1959-04-30 1962-02-06 Merrill Brothers Automatically locking lift fork attachment
GB892613A (en) * 1958-04-14 1962-03-28 Alfred Leslie Stopps Improvements in or relating to lift trucks
US3067889A (en) * 1960-09-13 1962-12-11 Leonard J Okonek Method for handling meat carcasses
US3409156A (en) * 1966-10-05 1968-11-05 Mills Sam Coil lifter
GB1342087A (en) * 1971-04-29 1973-12-25 Fisons Ltd Lifting devices
DD109602A1 (en) * 1974-02-11 1974-11-12
FR2272022A1 (en) * 1974-05-20 1975-12-19 Lynch Jack
EP0002523A1 (en) * 1977-12-14 1979-06-27 Helmut Lange Complementary device for forklift trucks

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1193943A (en) * 1959-11-05
GB662560A (en) * 1949-03-30 1951-12-05 Ransomes & Rapier Ltd Improvements relating to fork trucks
US2558388A (en) * 1949-11-29 1951-06-26 Lewis A Richardson Fork truck lift frame attachment
GB892613A (en) * 1958-04-14 1962-03-28 Alfred Leslie Stopps Improvements in or relating to lift trucks
US3019929A (en) * 1959-04-30 1962-02-06 Merrill Brothers Automatically locking lift fork attachment
US3067889A (en) * 1960-09-13 1962-12-11 Leonard J Okonek Method for handling meat carcasses
US3409156A (en) * 1966-10-05 1968-11-05 Mills Sam Coil lifter
GB1342087A (en) * 1971-04-29 1973-12-25 Fisons Ltd Lifting devices
DD109602A1 (en) * 1974-02-11 1974-11-12
FR2272022A1 (en) * 1974-05-20 1975-12-19 Lynch Jack
EP0002523A1 (en) * 1977-12-14 1979-06-27 Helmut Lange Complementary device for forklift trucks

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2659950A1 (en) * 1990-03-26 1991-09-27 Longometal Sa DEVICE FOR HANDLING AND TRANSPORTING PROFILES, PARTICULARLY METALLURGICAL PROFILES.
EP0449755A1 (en) * 1990-03-26 1991-10-02 LONGOMETAL, Société Anonyme Apparatus for handling and transporting profiles, especially metallurgical profiles
EP0561921A1 (en) * 1990-12-10 1993-09-29 Panama Engineering Pty Limited Fork-lift attachment
EP0561921A4 (en) * 1990-12-10 1994-02-23 Panama Engineering Pty Limited
FR2882351A1 (en) * 2005-02-24 2006-08-25 Tractionnaires Icaunais Lti Sa Lifting appliance e.g. power lift truck, accessory for transporting e.g. metal door, has slide with unit for maintaining and blocking plane object to be manipulated, and gripping unit gripped by lifting appliance and integrated to slide
CN103863972A (en) * 2013-12-18 2014-06-18 浙江吉利控股集团有限公司 Forklift hoisting tool and hoisting method thereof
US10280055B2 (en) * 2017-05-02 2019-05-07 William von Eberstein Ball joint lifting assembly and method
JP2019014599A (en) * 2017-07-11 2019-01-31 オリエンタル白石株式会社 Carriage mounting jig for forklift and member carriage mounting method using the same
JP2023061640A (en) * 2021-10-20 2023-05-02 大貫木材工業株式会社 Formwork hanging tool

Also Published As

Publication number Publication date
GB2089762B (en) 1984-05-23
EP0053009A3 (en) 1983-08-17
GB2089762A (en) 1982-06-30

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