WO2009117760A1 - Mobile lifting assembly - Google Patents

Mobile lifting assembly Download PDF

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Publication number
WO2009117760A1
WO2009117760A1 PCT/AU2009/000068 AU2009000068W WO2009117760A1 WO 2009117760 A1 WO2009117760 A1 WO 2009117760A1 AU 2009000068 W AU2009000068 W AU 2009000068W WO 2009117760 A1 WO2009117760 A1 WO 2009117760A1
Authority
WO
WIPO (PCT)
Prior art keywords
lifting assembly
mobile lifting
body frame
mobile
structural member
Prior art date
Application number
PCT/AU2009/000068
Other languages
French (fr)
Inventor
Symond Anthony Carr
Original Assignee
Carr, Andrew Laurence
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
Priority claimed from AU2008901428A external-priority patent/AU2008901428A0/en
Priority to AU2009227971A priority Critical patent/AU2009227971B2/en
Priority to US12/747,493 priority patent/US20110002756A1/en
Priority to CN200980101410.2A priority patent/CN101903281B/en
Priority to PL09725676T priority patent/PL2231500T3/en
Priority to JP2011501060A priority patent/JP5762946B2/en
Priority to NZ585955A priority patent/NZ585955A/en
Priority to SI200930721T priority patent/SI2231500T1/en
Priority to DK09725676.2T priority patent/DK2231500T3/en
Priority to CA2708402A priority patent/CA2708402C/en
Priority to EP09725676.2A priority patent/EP2231500B1/en
Application filed by Carr, Andrew Laurence filed Critical Carr, Andrew Laurence
Priority to ES09725676T priority patent/ES2428718T3/en
Publication of WO2009117760A1 publication Critical patent/WO2009117760A1/en
Priority to ZA2010/04083A priority patent/ZA201004083B/en
Priority to HK11103257.9A priority patent/HK1148996A1/en
Priority to US13/757,551 priority patent/US9273478B2/en
Priority to HRP20130894AT priority patent/HRP20130894T1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/02—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with parallel up-and-down movement of load supporting or containing element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2202/00—Indexing codes relating to type or characteristics of transported articles
    • B62B2202/62—Tiles, bricks, paving slabs or the like

Definitions

  • the present invention broadly relates to a mobile lifting assembly for manipulating structural members, such as an I-beam. More particularly, the invention relates to a mobile lifting assembly for lifting and transporting structural members in construction or mining applications.
  • Structural members such as I-beams are often required to reinforce structures in a construction site or a mining site.
  • the angle and placement of the structural members are crucial to the reinforcement, which necessitates the accurate positioning of the structural members.
  • the structural members when being installed for structural reinforcement, can be manipulated to be placed at various positions and orientations.
  • one or more forklifts are used for manipulating structural members.
  • One of the disadvantages of using forklifts is the height restrictions in a construction site or a mining site. For example, when a mirtli-level car park is to be converted into a shopping complex, every second floor of the car park may need to be knocked down to satisfy the height requirements for a shopping complex. Fn this situation, structural members may be required for structural reinforcement The use of forklifts in this situation may not be possible because the forklifts may be too tall to enter a car park level.
  • Other disadvantages of using forklifts also include the need for a number of forklifts and a number of forklift operators. Height restrictions in a mining site may be even more stringent that those for a car park.
  • a mobile lifting assembly comprising: a body frame with one or more wheels for transporting a structural member; and four individually controllable lifting devices connected to the body frame for repositioning of the structural member.
  • the lifting devices each include a hydraulic ram.
  • the four lifting devices are arranged as two (2) pairs of lifting devices spaced longitudinally along the body frame which is generally rectangular. More preferably the mobile lifting assembly includes two (2) cradles connected to respective of the two (2) pairs of lifting devices. Even more preferably the two (2) cradles are each operatively coupled to the hydraulic rams of the corresponding pair of lifting device for repositioning of the structural member. Preferably at least one of the four lifting devices includes a load monitoring device, such as a load cell.
  • the four individually controllable lifting devices may be controlled by a single control device.
  • the body frame includes a first pair and a second pair of wheels and the body frame is in the form of a trailer. More preferably at least one of the pairs of wheels is coupled to a turntable. Even more preferably the turntable is rotatable by 360 degrees.
  • the mobile lifting assembly includes an idler roller to assist with sliding of the structural member across the mobile lifting assembly. More preferably the mobile lifting assembly includes a winch for pulling the structural member across the mobile lifting assembly on the idler roller.
  • the mobile lifting assembly is arranged to couple with at least one other mobile lifting assembly to form a train of mobile lifting assemblies.
  • a mobile lifting assembly comprising: a body frame being adapted to locate on a supporting surface; a lifting device connected to the body frame for raising or lowering a structural member; and a skid resting on the supporting surface underneath the body frame and being arranged to contact the body frame to distribute forces imparted by the structural member on the body frame across the supporting surface.
  • the skid includes a hydraulic ram for adjusting the height of the skid for contacting the body frame. More preferably said hydraulic ram is one of a plurality of hydraulic rams.
  • the skid includes an upper frame for contacting the body frame. More preferably the plurality of hydraulic rams are arranged for adjusting the tilt of the upper frame such that the load exerted by the mobile lifting assembly on the supporting surface is adjustably distributed.
  • the body frame includes supporting members. More preferably the supporting members are wheels, and the body frame is in the form of a trailer.
  • the skid includes another load monitoring device, such as a load cell.
  • another load monitoring device such as a load cell.
  • FIG. 1 Perspective view of a first embodiment of the mobile lifting assembly, and a forklift.
  • Fig.2 End view of a second embodiment of the mobile lifting assembly.
  • Fig. 3 End view of a third embodiment of the mobile lifting assembly with a winch and a idler roller.
  • Fig.4 Partial end view of the third embodiment of the mobile lifting assembly with a cradle being positioned at an angle.
  • FIG. 5 Perspective view of an example of a skid.
  • FIG.6 Perspective view of the first embodiment of the mobile lifting assembly including a skid. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • the present invention relates to a mobile lifting assembly for transporting and manipulating structural members, such as an I-beam, in construction or mining applications.
  • the mobile lifting assembly comprises a primary unit or a body frame 2 with one or more wheels 4 for transporting a structural member (which is not shown in Fig. 1 ), and at least two lifting devices 6 connected to the body frame 1 for repositioning of the structural member.
  • Figure 1 shows an embodiment with four lifting devices 6, arranged as two pairs (8 and 10) of lifting devices 6 spaced longitudinally along the body frame 2, which, in the embodiment shown in Fig. 1, is rectangular.
  • the lifting devices 6 may each include a hydraulic ram for raising or lowering the corresponding lifting device.
  • the lifting devices 6 may be individually controllable such that the structural member can be repositioned, such as raised, towered, rolled or tilted, at an angle relative to the ground or a supporting surface on which the mobile lifting assembly rests.
  • the lifting devices 6 and hydraulic rams may be controlled collectively by a single control device with control over individual lifting devices and hydraulic rams.
  • each of the two pairs (8 and 10) of lifting devices 6 is connected to a cradle 12, in which the structural member may rest.
  • the two cradles 12, which are shown as having a U-shape, are each operatively coupled to the hydraulic rams of the corresponding pair (8 and 10) of lifting devices 6.
  • At least one of the lifting devices 6 may include a load monitoring device, such as a load cell.
  • the body frame 2 includes a first pair and a second pair of wheels 4 (only three wheels can be seen in Fig. 1 , with a forth wheel being blocked by the body frame 2).
  • FIG. 1 shows the end view of another embodiment of the mobile lifting assembly and shows a pair of wheels 4 .
  • This embodiment is similar to the one shown in Fig. 1 , except that the body frame 2 in this embodiment includes a drawbar 16, and is in the form of a trailer.
  • the pair of wheels 4 shown in Fig. 2 is coupled to a turntable 18.
  • the turntable 18 may be rotatable by 360 degress. The turntable 18 may allow the mobile lifting assembly to turn, whereby the mobile lifting assembly is not restricted to movement in a single direction.
  • Fig. 3 shows an end view of another embodiment of the mobile lifting assembly.
  • Fig. 3 shows the mobile lifting assembly together with a structural member 24 in one of the cradles 12, where the cradle and the structural member 24 have been raised, exposing two hydraulic rams 26.
  • the mobile lifting assembly includes an idler roller 20 to assist with, when the structural member 24 is lowered to the level of the idler roller 20, sliding of the structural member 24 across the mobile lifting assembly.
  • the mobile lifting assembly may also include a winch 22 for pulling the structural member across the mobile lifting assembly on the idler roller 20.
  • Fig.4 shows a partial end view of a mobile lifting assembly, where one of the cradles 12 is positioned at an angle, allowing sliding movement or rolling of the structural member (structural member not entirely shown in Fig. 4), as in the roll manoeuvre of airplanes. This may be achieved by individually controlling the extension of the two hydraulic rams 26 connected to the cradle 12.
  • Fig. 4 also shows at least one other mobile lifting assembly.
  • the two or more mobile lifting assemblies may be arranged, in such a way as shown, to couple with one another to form a train of mobile lifting assemblies.
  • This arrangement of more than one mobile lifting assembly allows for structural members that are substantially longer than the separation distance of the two cradles 12 on a mobile lifting assembly to be supported and repositioned or manipulated (raised, lowered, rolled or tilted).
  • the mobile lifting assembly includes a secondary unit or a skid to distribute the point load of the mobile lifting assembly on a supporting surface, such as a concrete floor in a building site or any ground surface in a mine.
  • a supporting surface such as a concrete floor in a building site or any ground surface in a mine.
  • An example of a skid 28 is shown in Fig. 5.
  • the skid 28 may also include an upper frame 32 that may be lowered or raised with respect to the supporting surface, thereby adjusting the overall height of the skid 28.
  • the mobile lifting assembly generally comprises, as shown in Fig. 6 and Fig. 7 which are the same embodiment of different views, a body frame 2 being adapted to locate on the supporting surface 30, a lifting device 6 connected to the body frame 2 for raising or towering a structural member (not shown in Fig. 6 and Fig. 7), and a skid 28 resting on the supporting surface 30 underneath the body frame 2 and being arranged to contact the body frame 2 to distribute forces imparted by the structural member on the body frame 2 across the supporting surface 30.
  • the skid 28 as shown in Fig. 6 and Fig. 7 is not in contact with the body frame 2.
  • the skid 28 may include at least one hydraulic ram for adjusting the height of the skid 28, by adjusting the height of the upper frame 32 relative to the supporting surface, for contacting the body frame 2.
  • the at least one hydraulic ram is one of a plurality of hydraulic rams (such as a ram in each corner) arranged for adjusting the tilt or plane of the upper frame 32 of the skid 28 such that the load exerted by the mobile lifting assembly on the supporting surface 30 is adjustably distributed, preferably evenly distributed.
  • the skid 28 may also include another load monitoring device, such as a load cell at each of the hydraulic rams.
  • the skid 28, as shown in Fig. 5, may also include caster wheels 34 for the movement of the skid 28.
  • the body frame 2 and the skid 28 may be required to move to a supporting surface that does not have a particularly high point loading capacity.
  • the upper frame 32 of the skid 28 may first be raised to make contact with the body frame 2, and appropriately tilted to evenly distribute the load among the wheels 4 of the body frame 2 and caster wheels 34 of the skid 28.
  • the load cells of each of the hydraulic rams may assist in measuring and determining a suitable height and tilt or plane of the upper frame 32 to evenly distribute the load.
  • the skid 28 together with the body frame 2 may then move to the desired location of the supporting surface, thereby reducing the risk of localised failure of the supporting surface.
  • the body frame 2 may also be in the form of a trailer. All features mentioned in the aspect without a skid may also apply to the aspect that includes a skid.
  • the mobile lifting assembly with the underlying skid or secondary unit can be positioned on a relatively weak supporting surface or floor by distribution the load between the primary and the secondary units without compromising the integrity of the floor.
  • Structural members may be manipulated in various ways, including being raised, lowered, slid, rolled and tilted, for the accurate placement of the structural members, which is often required for structural reinforcement.
  • the mobile lifting assembly may be custom built with a variety of heights, after considering height restrictions for a specific application.
  • the mobile lifting assembly may be operated with one person or only limited number of personnel.
  • the mobile lifting assembly may include any number of lifting devices as required.
  • Both the first and the second pair of wheels on the body frame may be connected to their respective turntable, providing 360° rotation of both pairs of wheels.
  • Th ⁇ cradles may be V-shaped, with multiple furrows or channels, or any shape other than a U-shape.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Handcart (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Abstract

According to one aspect of the invention there is provided a mobile lifting assembly comprising a body frame with one or more wheels for transporting a structural member, and four individually controllable lifting devices connected to the body frame for repositioning (such as raising, lowering, tilting or rolling) of the structural member. According to another aspect of the invention there is provided a mobile lifting assembly comprising a body frame being adapted to locate on a supporting surface, a lifting device connected to the body frame for raising or lowering a structural member, and a skid resting on the supporting surface underneath the body frame and being arranged to contact the body frame to distribute forces imparted by the structural member on the body frame across the supporting surface.

Description

Mobile lifting assembly FIELD OF THE INVENTION
The present invention broadly relates to a mobile lifting assembly for manipulating structural members, such as an I-beam. More particularly, the invention relates to a mobile lifting assembly for lifting and transporting structural members in construction or mining applications.
BACKGROUND TO THE INVENTION
Structural members such as I-beams are often required to reinforce structures in a construction site or a mining site. The angle and placement of the structural members are crucial to the reinforcement, which necessitates the accurate positioning of the structural members. Ideally the structural members, when being installed for structural reinforcement, can be manipulated to be placed at various positions and orientations.
Often, one or more forklifts are used for manipulating structural members. One of the disadvantages of using forklifts is the height restrictions in a construction site or a mining site. For example, when a mirtli-level car park is to be converted into a shopping complex, every second floor of the car park may need to be knocked down to satisfy the height requirements for a shopping complex. Fn this situation, structural members may be required for structural reinforcement The use of forklifts in this situation may not be possible because the forklifts may be too tall to enter a car park level. Other disadvantages of using forklifts also include the need for a number of forklifts and a number of forklift operators. Height restrictions in a mining site may be even more stringent that those for a car park.
SUMMARY OF THE INVENTION
According to one aspect of the invention there is provided a mobile lifting assembly comprising: a body frame with one or more wheels for transporting a structural member; and four individually controllable lifting devices connected to the body frame for repositioning of the structural member.
Preferably the lifting devices each include a hydraulic ram.
Preferably the four lifting devices are arranged as two (2) pairs of lifting devices spaced longitudinally along the body frame which is generally rectangular. More preferably the mobile lifting assembly includes two (2) cradles connected to respective of the two (2) pairs of lifting devices. Even more preferably the two (2) cradles are each operatively coupled to the hydraulic rams of the corresponding pair of lifting device for repositioning of the structural member. Preferably at least one of the four lifting devices includes a load monitoring device, such as a load cell.
Preferably the four individually controllable lifting devices may be controlled by a single control device. Preferably the body frame includes a first pair and a second pair of wheels and the body frame is in the form of a trailer. More preferably at least one of the pairs of wheels is coupled to a turntable. Even more preferably the turntable is rotatable by 360 degrees.
Preferably the mobile lifting assembly includes an idler roller to assist with sliding of the structural member across the mobile lifting assembly. More preferably the mobile lifting assembly includes a winch for pulling the structural member across the mobile lifting assembly on the idler roller.
Preferably the mobile lifting assembly is arranged to couple with at least one other mobile lifting assembly to form a train of mobile lifting assemblies.
According to another aspect of the invention there is provided a mobile lifting assembly comprising: a body frame being adapted to locate on a supporting surface; a lifting device connected to the body frame for raising or lowering a structural member; and a skid resting on the supporting surface underneath the body frame and being arranged to contact the body frame to distribute forces imparted by the structural member on the body frame across the supporting surface.
Preferably the skid includes a hydraulic ram for adjusting the height of the skid for contacting the body frame. More preferably said hydraulic ram is one of a plurality of hydraulic rams.
Preferably the skid includes an upper frame for contacting the body frame. More preferably the plurality of hydraulic rams are arranged for adjusting the tilt of the upper frame such that the load exerted by the mobile lifting assembly on the supporting surface is adjustably distributed.
Preferably the body frame includes supporting members. More preferably the supporting members are wheels, and the body frame is in the form of a trailer.
Preferably the skid includes another load monitoring device, such as a load cell. BRIEF DESCRIPTION OF THE ACCOMPANYING FIGURES
Fig. 1 Perspective view of a first embodiment of the mobile lifting assembly, and a forklift. Fig.2 End view of a second embodiment of the mobile lifting assembly. Fig. 3 End view of a third embodiment of the mobile lifting assembly with a winch and a idler roller. Fig.4 Partial end view of the third embodiment of the mobile lifting assembly with a cradle being positioned at an angle.
Fig. 5 Perspective view of an example of a skid.
Fig.6 Perspective view of the first embodiment of the mobile lifting assembly including a skid. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The present invention relates to a mobile lifting assembly for transporting and manipulating structural members, such as an I-beam, in construction or mining applications.
In one aspect of the invention, as shown in Fig. 1, the mobile lifting assembly comprises a primary unit or a body frame 2 with one or more wheels 4 for transporting a structural member (which is not shown in Fig. 1 ), and at least two lifting devices 6 connected to the body frame 1 for repositioning of the structural member. Figure 1 shows an embodiment with four lifting devices 6, arranged as two pairs (8 and 10) of lifting devices 6 spaced longitudinally along the body frame 2, which, in the embodiment shown in Fig. 1, is rectangular.
In some embodiments, the lifting devices 6 may each include a hydraulic ram for raising or lowering the corresponding lifting device. The lifting devices 6 may be individually controllable such that the structural member can be repositioned, such as raised, towered, rolled or tilted, at an angle relative to the ground or a supporting surface on which the mobile lifting assembly rests. The lifting devices 6 and hydraulic rams may be controlled collectively by a single control device with control over individual lifting devices and hydraulic rams. In the embodiment shown in Fig. 1 , each of the two pairs (8 and 10) of lifting devices 6 is connected to a cradle 12, in which the structural member may rest. The two cradles 12, which are shown as having a U-shape, are each operatively coupled to the hydraulic rams of the corresponding pair (8 and 10) of lifting devices 6.
In some embodiments, at least one of the lifting devices 6 may include a load monitoring device, such as a load cell.
In the embodiment shown in Fig. 1 , the body frame 2 includes a first pair and a second pair of wheels 4 (only three wheels can be seen in Fig. 1 , with a forth wheel being blocked by the body frame 2).
For comparison purposes, a typically sized forklift 13 is also shown in Fig. 1. As shown, this embodiment of the mobile lifting assembly is only about half the height of the forklift. The use of a mobile lifting assembly may therefore allow transportation and manipulation of a structural member in an environment, such as a mine or construction site, with a height restriction that would exclude the use of a forklift. Figure 2 shows the end view of another embodiment of the mobile lifting assembly and shows a pair of wheels 4 . This embodiment is similar to the one shown in Fig. 1 , except that the body frame 2 in this embodiment includes a drawbar 16, and is in the form of a trailer. The pair of wheels 4 shown in Fig. 2 is coupled to a turntable 18. The turntable 18 may be rotatable by 360 degress. The turntable 18 may allow the mobile lifting assembly to turn, whereby the mobile lifting assembly is not restricted to movement in a single direction.
Fig. 3 shows an end view of another embodiment of the mobile lifting assembly. Fig. 3 shows the mobile lifting assembly together with a structural member 24 in one of the cradles 12, where the cradle and the structural member 24 have been raised, exposing two hydraulic rams 26. In this embodiment, the mobile lifting assembly includes an idler roller 20 to assist with, when the structural member 24 is lowered to the level of the idler roller 20, sliding of the structural member 24 across the mobile lifting assembly. The mobile lifting assembly may also include a winch 22 for pulling the structural member across the mobile lifting assembly on the idler roller 20.
Fig.4 shows a partial end view of a mobile lifting assembly, where one of the cradles 12 is positioned at an angle, allowing sliding movement or rolling of the structural member (structural member not entirely shown in Fig. 4), as in the roll manoeuvre of airplanes. This may be achieved by individually controlling the extension of the two hydraulic rams 26 connected to the cradle 12.
Fig. 4 also shows at least one other mobile lifting assembly. The two or more mobile lifting assemblies may be arranged, in such a way as shown, to couple with one another to form a train of mobile lifting assemblies. This arrangement of more than one mobile lifting assembly allows for structural members that are substantially longer than the separation distance of the two cradles 12 on a mobile lifting assembly to be supported and repositioned or manipulated (raised, lowered, rolled or tilted).
In another aspect of the present invention, the mobile lifting assembly includes a secondary unit or a skid to distribute the point load of the mobile lifting assembly on a supporting surface, such as a concrete floor in a building site or any ground surface in a mine. An example of a skid 28 is shown in Fig. 5. The skid 28 may also include an upper frame 32 that may be lowered or raised with respect to the supporting surface, thereby adjusting the overall height of the skid 28.
In this aspect of the invention, the mobile lifting assembly generally comprises, as shown in Fig. 6 and Fig. 7 which are the same embodiment of different views, a body frame 2 being adapted to locate on the supporting surface 30, a lifting device 6 connected to the body frame 2 for raising or towering a structural member (not shown in Fig. 6 and Fig. 7), and a skid 28 resting on the supporting surface 30 underneath the body frame 2 and being arranged to contact the body frame 2 to distribute forces imparted by the structural member on the body frame 2 across the supporting surface 30. The skid 28 as shown in Fig. 6 and Fig. 7 is not in contact with the body frame 2. The skid 28 may include at least one hydraulic ram for adjusting the height of the skid 28, by adjusting the height of the upper frame 32 relative to the supporting surface, for contacting the body frame 2. In general, the at least one hydraulic ram is one of a plurality of hydraulic rams (such as a ram in each corner) arranged for adjusting the tilt or plane of the upper frame 32 of the skid 28 such that the load exerted by the mobile lifting assembly on the supporting surface 30 is adjustably distributed, preferably evenly distributed. The skid 28 may also include another load monitoring device, such as a load cell at each of the hydraulic rams.
The skid 28, as shown in Fig. 5, may also include caster wheels 34 for the movement of the skid 28.
In practice, the body frame 2 and the skid 28 may be required to move to a supporting surface that does not have a particularly high point loading capacity. In this situation, the upper frame 32 of the skid 28 may first be raised to make contact with the body frame 2, and appropriately tilted to evenly distribute the load among the wheels 4 of the body frame 2 and caster wheels 34 of the skid 28.
The load cells of each of the hydraulic rams may assist in measuring and determining a suitable height and tilt or plane of the upper frame 32 to evenly distribute the load. The skid 28 together with the body frame 2 may then move to the desired location of the supporting surface, thereby reducing the risk of localised failure of the supporting surface.
The body frame 2 of the embodiment shown in Fig. 6 and Fig. 7, like some of the previously mentioned embodiments, has supporting members or wheels 4. The body frame 2 may also be in the form of a trailer. All features mentioned in the aspect without a skid may also apply to the aspect that includes a skid.
Now that several preferred embodiments of the present invention have been described it will be apparent to those skilled in the art that the mobile lifting assembly has the following advantages:
• The mobile lifting assembly with the underlying skid or secondary unit can be positioned on a relatively weak supporting surface or floor by distribution the load between the primary and the secondary units without compromising the integrity of the floor.
• Structural members may be manipulated in various ways, including being raised, lowered, slid, rolled and tilted, for the accurate placement of the structural members, which is often required for structural reinforcement. • The mobile lifting assembly may be custom built with a variety of heights, after considering height restrictions for a specific application.
• If the lifting devices are all controlled by a single control device with control over individual lifting devices, the mobile lifting assembly may be operated with one person or only limited number of personnel. Those skilled in the art will appreciate that the invention described herein is susceptible to variations and modifications other than those specifically described. For example, the mobile lifting assembly may include any number of lifting devices as required. Both the first and the second pair of wheels on the body frame may be connected to their respective turntable, providing 360° rotation of both pairs of wheels. Thθ cradles may be V-shaped, with multiple furrows or channels, or any shape other than a U-shape.
All such variations and modifications are to be considered within the ambit of the present invention the nature of which is to be determined from the foregoing description.

Claims

1. A mobile lifting assembly comprising: a body frame with one or more wheels for transporting a structural member; and four individually controllable lifting devices connected to the body frame for repositioning of the structural member.
2. A mobile lifting assembly as claimed in claim 1 wherein the lifting devices each include a hydraulic ram.
3. A mobile lifting assembly as claimed in either of claims 1 or 2 wherein the four lifting devices are arranged as two (2) pairs of lifting devices spaced longitudinally along the body frame which is generally rectangular.
4. A mobile lifting assembly as claimed in claim 3 further comprising two (2) cradles connected to respective of the two (2) pairs of lifting devices.
5. A mobile lifting assembly as claimed in claim 4 wherein the two (2) cradles are each operatively coupled to the hydraulic rams of the corresponding pair of lifting device for raising, lowering, tilting or rolling of the structural member.
6. A mobile lifting assembly as claimed in any one of the preceding claims wherein at least one of the four lifting devices includes a load monitoring device.
7. A mobile lifting assembly as claimed claim 6 wherein the load monitoring device is a load cell.
8. A mobile lifting assembly as claimed in any one of the preceding claims wherein the four individually controllable lifting devices may be controlled by a single control device.
9. A mobile lifting assembly as claimed in any one of the preceding claims wherein the body frame includes a first pair and a second pair of wheels and the body frame is in the form of a trailer.
10. A mobile lifting assembly as claimed in claim 9 wherein at least one of the pairs of wheels is coupled to a turntable.
11. A mobile lifting assembly as claimed in claim 10 wherein the turntable is rotatable by 360 degrees.
12. A mobile lifting assembly as claimed in any one of the preceding claims further comprising an idler roller to assist with sliding of the structural member across the mobile lifting assembly.
13. A mobile lifting assembly as claimed in claim 12 wherein the mobile lifting assembly includes a winch for pulling the structural member across the mobile lifting assembly on the idler roller.
14. A mobile lifting assembly comprising: a body frame being adapted to locate on a supporting surface; a lifting device connected to the body frame for raising or lowering a structural member; and a skid resting on the supporting surface underneath the body frame and being arranged to contact the body frame to distribute forces imparted by the structural member on the body frame across the supporting surface.
15. A mobile lifting assembly as claimed in claim 14 wherein the skid includes a hydraulic ram for adjusting the height of the skid for contacting the body frame.
16. A mobile lifting assembly as claimed in claim 15 wherein the skid includes an upper frame for contacting the body frame.
17. A mobile lifting assembly as claimed in claim 16 wherein the hydraulic ram is one of a plurality of hydraulic rams.
18. A mobile lifting assembly as claimed in claim 17 wherein the plurality of hydraulic rams are arranged for adjusting the tilt of the upper frame such that the load exerted by the mobile lifting assembly on the supporting surface is adjustably distributed.
19. A mobile lifting assembly as claimed in any one of claims 14 to 18 wherein the body frame includes supporting members.
20. A mobile lifting assembly as claimed in claim 19 the supporting members are wheels, and the body frame is in the form of a trailer.
21. A mobile lifting assembly as claimed in any one of claims 14 to 20 wherein the skid includes a load monitoring device.
22. A mobile lifting assembly as claimed in claim 21 wherein the load monitoring device is a load cell.
PCT/AU2009/000068 2008-03-25 2009-01-22 Mobile lifting assembly WO2009117760A1 (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
ES09725676T ES2428718T3 (en) 2008-03-25 2009-01-22 Mobile lift set
EP09725676.2A EP2231500B1 (en) 2008-03-25 2009-01-22 Mobile lifting assembly
CA2708402A CA2708402C (en) 2008-03-25 2009-01-22 Mobile lifting assembly
PL09725676T PL2231500T3 (en) 2008-03-25 2009-01-22 Mobile lifting assembly
US12/747,493 US20110002756A1 (en) 2008-03-25 2009-01-22 Mobile lifting assembly
NZ585955A NZ585955A (en) 2008-03-25 2009-01-22 Mobile lifting assembly with one or more wheels and four individually controllable lifting devices connected to body for repositioning structural member
SI200930721T SI2231500T1 (en) 2008-03-25 2009-01-22 Mobile lifting assembly
AU2009227971A AU2009227971B2 (en) 2008-03-25 2009-01-22 Mobile lifting assembly
CN200980101410.2A CN101903281B (en) 2008-03-25 2009-01-22 Mobile lifting assembly
JP2011501060A JP5762946B2 (en) 2008-03-25 2009-01-22 Mobile lift assembly
DK09725676.2T DK2231500T3 (en) 2008-03-25 2009-01-22 MOBILE LIFTING DEVICE
ZA2010/04083A ZA201004083B (en) 2008-03-25 2010-06-08 Mobile lifting assembly
HK11103257.9A HK1148996A1 (en) 2008-03-25 2011-03-30 Mobile lifting assembly
US13/757,551 US9273478B2 (en) 2008-03-25 2013-02-01 Mobile lifting assembly
HRP20130894AT HRP20130894T1 (en) 2008-03-25 2013-09-20 Mobile lifting assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2008901428A AU2008901428A0 (en) 2008-03-25 Mobile lifting assembly
AU2008901428 2008-03-25

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/747,493 A-371-Of-International US20110002756A1 (en) 2008-03-25 2009-01-22 Mobile lifting assembly
US13/757,551 Division US9273478B2 (en) 2008-03-25 2013-02-01 Mobile lifting assembly

Publications (1)

Publication Number Publication Date
WO2009117760A1 true WO2009117760A1 (en) 2009-10-01

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ID=41112845

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Application Number Title Priority Date Filing Date
PCT/AU2009/000068 WO2009117760A1 (en) 2008-03-25 2009-01-22 Mobile lifting assembly

Country Status (16)

Country Link
US (2) US20110002756A1 (en)
EP (1) EP2231500B1 (en)
JP (1) JP5762946B2 (en)
CN (1) CN101903281B (en)
AU (1) AU2009227971B2 (en)
CA (1) CA2708402C (en)
DK (1) DK2231500T3 (en)
ES (1) ES2428718T3 (en)
HK (1) HK1148996A1 (en)
HR (1) HRP20130894T1 (en)
NZ (1) NZ585955A (en)
PL (1) PL2231500T3 (en)
PT (1) PT2231500E (en)
SI (1) SI2231500T1 (en)
WO (1) WO2009117760A1 (en)
ZA (1) ZA201004083B (en)

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WO2020077402A1 (en) * 2018-10-16 2020-04-23 Technological Resources Pty. Limited A rotable bucket wheel assembly and a method for refurbishing an associated bucket wheel reclaimer

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PL2231500T3 (en) 2013-12-31
AU2009227971B2 (en) 2015-10-29
CA2708402C (en) 2017-02-28
HRP20130894T1 (en) 2013-11-22
HK1148996A1 (en) 2011-09-23
CN101903281A (en) 2010-12-01
JP5762946B2 (en) 2015-08-12
CN101903281B (en) 2015-07-22
EP2231500B1 (en) 2013-06-26
JP2011517648A (en) 2011-06-16
AU2009227971A1 (en) 2009-10-01
EP2231500A1 (en) 2010-09-29
NZ585955A (en) 2012-12-21
EP2231500A4 (en) 2012-04-25
SI2231500T1 (en) 2013-11-29
DK2231500T3 (en) 2013-10-07
US9273478B2 (en) 2016-03-01
ES2428718T3 (en) 2013-11-11
US20130149074A1 (en) 2013-06-13
PT2231500E (en) 2013-09-30
CA2708402A1 (en) 2009-10-01
US20110002756A1 (en) 2011-01-06
ZA201004083B (en) 2011-08-31

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