WO2002072464A2 - Force exerting device amongst others employable for lifting purposes - Google Patents

Force exerting device amongst others employable for lifting purposes Download PDF

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Publication number
WO2002072464A2
WO2002072464A2 PCT/ZA2002/000028 ZA0200028W WO02072464A2 WO 2002072464 A2 WO2002072464 A2 WO 2002072464A2 ZA 0200028 W ZA0200028 W ZA 0200028W WO 02072464 A2 WO02072464 A2 WO 02072464A2
Authority
WO
WIPO (PCT)
Prior art keywords
force
urging member
carrier
exerting
along
Prior art date
Application number
PCT/ZA2002/000028
Other languages
French (fr)
Other versions
WO2002072464A3 (en
Inventor
Colin Christie
Original Assignee
Joubert, Hendrik, Petrus
Van Schalkwyk, Johan
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 Joubert, Hendrik, Petrus, Van Schalkwyk, Johan filed Critical Joubert, Hendrik, Petrus
Priority to EP02719545A priority Critical patent/EP1425240A2/en
Priority to CA002461850A priority patent/CA2461850A1/en
Publication of WO2002072464A2 publication Critical patent/WO2002072464A2/en
Publication of WO2002072464A3 publication Critical patent/WO2002072464A3/en
Priority to ZA200401863A priority patent/ZA200401863B/en

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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
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads

Definitions

  • the exertion of a force in achieving displacement or for holding objects apart is a common activity.
  • Such force can thus be exerted to, amongst others, displace an item, for example the lifting of an item such as a vehicle or a container or for the winching of an item.
  • the displacement brought about by the exertion of such force can be in any direction depending on the way equipment used to such end is constituted.
  • a typical example where objects are held apart in response to the exertion of a force is a mine prop for holding up a mine wall. While the exertion of a force can be brought about by involving driven equipment, often such equipment is of a manually manipulable kind.
  • This invention relates to a manually operable force-exerting device amongst other employable for lifting purposes. It is thus useful in jacking vehicles or any other load and can be used in appropriate multiples to lift and lower containers or the like. Although useful in performing a lifting function the invention, as suitably adapted, can also be used to displace items in other directions. While useful in performing a lifting function its application is not limited thereto but finds further application where a force is desired to be stationarily exerted.
  • Figure 1 shows a manually operable force-exerting device, according to the invention, in the form of a jack, in side elevation,
  • Figure 2 shows the device along arrow A in figure 1 however omitting the jacking lip providing member of the urging member, forming part of the jack,
  • Figure 3 shows the use of the handle forming part of the displacing mechanism of the jack
  • Figure 4 shows in three-dimensional disassembled view the urging member of the device as constituted from a runner and the jacking lip providing member
  • Figure 5 shows the device as fitted with a force exerting position transferring member in the form of a post for exerting a force beyond the outer position of displacement of the runner along the carrier,
  • Figure 6 shows guide means employable in conjunction with the post of figure 5, as releasably attachable to the carrier, in plan view,
  • Figure 7 diagrammatically shows the device as adapted for use as a winch, in side elevation, and
  • Figure 8 diagrammatically shows the device as adapted for use as a container manipulator for lifting or removing containers onto or from load carrying vehicles.
  • a manually operable force-exerting device is generally indicated by reference numeral 10.
  • the device 10 comprises an urging member in the form of a runner 12 that runably engages with a carrier in the form of a rectangularly profiled runner guide 16, and a manually manipulable urging member displacing mechanism 18 fitted in a fixed relationship to the runner guide 16.
  • the mechanism 18 cooperates with the runner 12 in causing its displacement in its direction of force exertion via linking means in the form of a belt 20 (shown in broken lines in figure 2) extending sling-fashion from the mechanism 18 along the runner 12 to a belt free end anchor 22.
  • the linking means can alternatively be in the form of a cable 21.
  • the guide 16 is constituted from a runner engaging section 16.1 and an urging member displacing mechanism carrying section 16.2 bolted to one another, as more clearly shown in figures 1 to 3.
  • the urging member displacing mechanism 18, as in the form of a ratchet facility 18.1 incorporates a drum (not shown) onto which the belt 20 is releasably reliable.
  • the belt 20 becomes progressively rolled onto the drum.
  • the facility 18.1 is also fitted with a release mechanism (not shown in detail) that permits the controlled unwinding of the belt 20 from the drum under the action of a force that remains once the runner 12 is caused to be lowered as, for example, when using the device 10 as a jack, as discussed below.
  • the release mechanism thus enables the controlled lowering of an item such as a jacked vehicle.
  • the facility 18.1 can typically be in the form of an ABSTM ratchet manufactured by the German firm SpanSet.
  • the body portion 12.1 of the runner 12 is formed from opposing side plates 24 suitably spaced by spacers 26 and fitted with a roller layout 27 comprising set of gap spanning rollers 28 and caged rollers 30 fitted to emerge from the inner faces of the side plates 24.
  • the runner 12 thus engages rollably on all sides with the section 16.1 of the carrier 16 promoting its smooth displacement there along.
  • the runner 12 is also fitted with a guide roller 32 below which the belt 20 passes.
  • the task performed by the caged rollers 30 can also be performed by lubricating strips (not shown) fitted along the inner walls of the side-plates 24.
  • the runner 12 also incorporates a force exerting lip providing member 34 that engages releasably with the runner 12 by means of a locking pin (not shown) passing along registering apertures 36 in the runner 12 and the member 34.
  • the apertures 36 come into registration once the backing plate 42 of the member 34 lies flush against the edges 24.1 of the side plates 24 thus ensuring a firm engagement of the member 34 and the runner 12.
  • the facility 18.1 is situated on the opposite side of the runner guide 16 as that to which the member 34 is fitted to the body 12.1 of the runner 12 to limit interference between the operation of the runner 12 and the facility 18.1.
  • the belt 20 passes along the guide roller 32 on the same side as that to which the member 34 is fitted. To this effect the belt 20 thus passes through the section 16.2, over an upper guide roller 38 and thence below the runner mounted guide roller 32.
  • section 20.1 of the belt 20 extending between the roller 38 and the anchor 22 causes the section 20.1 of the belt 20 extending between the roller 38 and the anchor 22 to be at least substantially parallel to the axis 40 of the carrier 6.
  • span of the section 20.1 of the belt 20 also lies closely adjacent the central line of force exertion 42 of the member 34.
  • the force exerting lip providing member 34 serves the function of jacking lip providing member when the device 10 is used as jack involving displacement of the runner 12 in the direction of arrow 44.
  • the lip 34.1 of the member 34 is simply positioned below or into the lifting position of a vehicle that is thereafter jacked in response to the operation of the ratchet facility 18.1.
  • the lip 34.1 is only shown diagrammatically and will be adapted for the specific application.
  • the device 10 is supplementable with a force exerting position transferring member in the form of a post 48 that is releasably engaged with the lip 34.1 of the member 34 by means of a locking pin (not shown) that passes along registering apertures 50 in the lip 14.1 and legs 52 forming part of the post 48 that fit straddlably onto the lip 34.1.
  • the post 48 is constrained to be displaced in parallel with the axis 40 of the guide 26 by passing along a post guide 56 formed with a post engaging aperture 58 and a carrier engaging aperture 60.
  • the post guide 56 is releasably fitted to the upper end of the carrier 16 by being simply bolted thereto.
  • Supplementation of the member 34 with the post 48 is useful in the case where force exertion is desired to be done at a high elevation location.
  • the device 10 can even be used as a permanent support such as a prop.
  • the post 48 is shown in figure 5 as being releasably fitted to the member 34 it can naturally also form an integral part of the runner 12.
  • the device 10 can also serve as a winch. Adaptation of the device for such purpose involves as first step the removal of the pedestal 46. In using the device 10 as winch the runner 12 must thus exert a drawing or pulling force via a cord conventionally in the form of a winch belt 62. The belt 62, as presenting a leading end securing loop, is thus secured to the member 34 via a securing lug extending between an apertures set 64 in the member 34.
  • Stabilisation of the device 10 in exerting a pulling force via the belt 62 is achieved via a guide 66 that is releasably fitted to the end of the carrier 16 and along which the belt 62 is threaded.
  • a guide 66 that is releasably fitted to the end of the carrier 16 and along which the belt 62 is threaded.
  • the end of the guide 16 remote from that from which the belt 62 trails must necessarily be properly anchored.
  • the outer end of the guide section 16.2 is fitted with an anchoring lug 68 used for securing an anchoring belt 70 to the guide 16 and of which the other end is suitably anchorable. Winching is achieved by simply operating the facility 18 once the belts 62 and 70 are appropriately secured.
  • the device 10 is adapted for the lifting and lowering of containers thus serving as container manipulator.
  • the runner 12 extends laterally from the position of carrier engagement by incorporating an engagement beam 72 secured to the body 12.1 of the runner 12 with the beam 72 presenting locations of load securing 74 at its opposite ends.
  • the locations 74 are in the form of a conventional bracket facility including an overhead catch 76 and a bolting member 78 used for securely engaging a shipping container 80.
  • the beam 72 is naturally of adequate length while the runner 12 is to a suitable extent displaceable along the guide 16 to also enable location of the lower load securing position 74.1 on the ground for suitable container engagement.
  • the cable 21 of the device 10 of this embodiment is convoluted a number of times along the guide 16 to obtain the desired leverage.
  • the cable 21 consequently extends between its anchor 22 and the mechanism 18 via pulleys 82 on either side of the runner 12 and along an overhead pulley cluster 84.
  • the mechanism 18 can also be in the form of the facility 18.1 as discussed above, a more robust mechanism 18 will often be required such as a conventional winch type reel 86 incorporating a locking facility and a controlled releasing mechanism to enable the controlled lowering of a container.
  • the figure 8 embodiment is subject to variation such as a smaller distance between the locations of load securing 74 and different securing layouts depending on the kind of load desired to be lifted.
  • force-exerting equipment is provided that is manually operable from a fixed position while the relaxation of force exerted can be done in a controlled fashion.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

A manually operable force exerting device 10 comprises an urging member in the form of a runner 12 that smoothly engages with a carrier in the form of a runner guide 16, and a manually manipulable urging member displacing mechanism 18 in the form of a ratchet facility 18.1 fitted in a fixed relationship to the runner guide 16. The facility 18.1 cooperates with the runner 12 in causing its displacement via linking means in the form of a belt 20 extending sling-fashion from the facility 18.1 along the runner 12 to an anchor 22. The facility 18.1 is also fitted with a release mechanism that permits the controlled unwinding of the belt 20, as rollable onto a drum, in controllably lowering a vehicle jacked by means of the device 10. The belt 20 passes along a guide roller 32 forming part of the runner 12.

Description

(1) TITLE OF THE INVENTION
FORCE EXERTING DEVICE AMONGST OTHERS EMPLOYABLE FOR LIFTING PURPOSES
(2) BACKGROUND TO THE INVENTION
The exertion of a force in achieving displacement or for holding objects apart is a common activity. Such force can thus be exerted to, amongst others, displace an item, for example the lifting of an item such as a vehicle or a container or for the winching of an item. The displacement brought about by the exertion of such force can be in any direction depending on the way equipment used to such end is constituted. A typical example where objects are held apart in response to the exertion of a force is a mine prop for holding up a mine wall. While the exertion of a force can be brought about by involving driven equipment, often such equipment is of a manually manipulable kind.
(3) FIELD OF THE INVENTION
This invention relates to a manually operable force-exerting device amongst other employable for lifting purposes. It is thus useful in jacking vehicles or any other load and can be used in appropriate multiples to lift and lower containers or the like. Although useful in performing a lifting function the invention, as suitably adapted, can also be used to displace items in other directions. While useful in performing a lifting function its application is not limited thereto but finds further application where a force is desired to be stationarily exerted.
(4) PRIOR ART DESCRIPTION
Manually manipulable force exerting equipment is commonly known in the art, whether for lifting or moving purposes or for exertion of force on a stationary position. When used for lifting or otherwise item displacing purposes the devices known to the applicants, where such displacement involves the movement of a displacer along a carrier, involves the movement of the manipulating equipment as well. In the case of a lifting action release is often uncontrolled involving a dangerous situation for the user as well as the possibility of lifted item damage. Such known equipment is also designed to perform a singular function only. It is, amongst others an object of this invention to address these issues. (5) BRIEF DESCRIPTION OF THE DRAWING
The invention is now described, by way of example, with reference to the accompanying drawings. In the drawings
Figure 1 shows a manually operable force-exerting device, according to the invention, in the form of a jack, in side elevation,
Figure 2 shows the device along arrow A in figure 1 however omitting the jacking lip providing member of the urging member, forming part of the jack,
Figure 3 shows the use of the handle forming part of the displacing mechanism of the jack,
Figure 4 shows in three-dimensional disassembled view the urging member of the device as constituted from a runner and the jacking lip providing member,
Figure 5 shows the device as fitted with a force exerting position transferring member in the form of a post for exerting a force beyond the outer position of displacement of the runner along the carrier,
Figure 6 shows guide means employable in conjunction with the post of figure 5, as releasably attachable to the carrier, in plan view,
Figure 7 diagrammatically shows the device as adapted for use as a winch, in side elevation, and
Figure 8 diagrammatically shows the device as adapted for use as a container manipulator for lifting or removing containers onto or from load carrying vehicles.
(6) DETAILED DESCRIPTION OF THE DRAWINGS
Referring to the drawings a manually operable force-exerting device is generally indicated by reference numeral 10. The device 10 comprises an urging member in the form of a runner 12 that runably engages with a carrier in the form of a rectangularly profiled runner guide 16, and a manually manipulable urging member displacing mechanism 18 fitted in a fixed relationship to the runner guide 16. The mechanism 18 cooperates with the runner 12 in causing its displacement in its direction of force exertion via linking means in the form of a belt 20 (shown in broken lines in figure 2) extending sling-fashion from the mechanism 18 along the runner 12 to a belt free end anchor 22. In the case of the figure 8 embodiment the linking means can alternatively be in the form of a cable 21. The guide 16 is constituted from a runner engaging section 16.1 and an urging member displacing mechanism carrying section 16.2 bolted to one another, as more clearly shown in figures 1 to 3.
Referring more particularly to figures 1 to 5 and figure 7 the urging member displacing mechanism 18, as in the form of a ratchet facility 18.1 , incorporates a drum (not shown) onto which the belt 20 is releasably reliable. When the device 10 is thus used to exert a force that is brought about by a shortening of the length of the belt 20 in response to reciprocation of the handle 24 of the facility 18.1 , the belt 20 becomes progressively rolled onto the drum. The facility 18.1 is also fitted with a release mechanism (not shown in detail) that permits the controlled unwinding of the belt 20 from the drum under the action of a force that remains once the runner 12 is caused to be lowered as, for example, when using the device 10 as a jack, as discussed below. The release mechanism thus enables the controlled lowering of an item such as a jacked vehicle. Although not in any way limiting the facility 18.1 to such equipment it can typically be in the form of an ABS™ ratchet manufactured by the German firm SpanSet.
Referring more particularly to figure 4 the body portion 12.1 of the runner 12 is formed from opposing side plates 24 suitably spaced by spacers 26 and fitted with a roller layout 27 comprising set of gap spanning rollers 28 and caged rollers 30 fitted to emerge from the inner faces of the side plates 24. The runner 12 thus engages rollably on all sides with the section 16.1 of the carrier 16 promoting its smooth displacement there along. The runner 12 is also fitted with a guide roller 32 below which the belt 20 passes. The task performed by the caged rollers 30 can also be performed by lubricating strips (not shown) fitted along the inner walls of the side-plates 24.The runner 12 also incorporates a force exerting lip providing member 34 that engages releasably with the runner 12 by means of a locking pin (not shown) passing along registering apertures 36 in the runner 12 and the member 34. The apertures 36 come into registration once the backing plate 42 of the member 34 lies flush against the edges 24.1 of the side plates 24 thus ensuring a firm engagement of the member 34 and the runner 12.
Referring again to figures 1 to 5 and 7 the facility 18.1 is situated on the opposite side of the runner guide 16 as that to which the member 34 is fitted to the body 12.1 of the runner 12 to limit interference between the operation of the runner 12 and the facility 18.1. To limit the force exerted by the belt 20 in causing the runner 12 to perform its force exerting action and the opposing force acting on the force exerting lip providing member 34, once so exerting a force, from forming a couple, thus urging the runner 12 into exerting an unbalanced force on the guide 16, the belt 20 passes along the guide roller 32 on the same side as that to which the member 34 is fitted. To this effect the belt 20 thus passes through the section 16.2, over an upper guide roller 38 and thence below the runner mounted guide roller 32. This causes the section 20.1 of the belt 20 extending between the roller 38 and the anchor 22 to be at least substantially parallel to the axis 40 of the carrier 6. In addition the span of the section 20.1 of the belt 20 also lies closely adjacent the central line of force exertion 42 of the member 34.
Referring more specifically to figures 1 to 3 and in an embodiment the force exerting lip providing member 34 serves the function of jacking lip providing member when the device 10 is used as jack involving displacement of the runner 12 in the direction of arrow 44. To this effect the lip 34.1 of the member 34 is simply positioned below or into the lifting position of a vehicle that is thereafter jacked in response to the operation of the ratchet facility 18.1. It will be appreciated that the lip 34.1 is only shown diagrammatically and will be adapted for the specific application. When using the device 10 to exert a force in which its one end is required to seat against a base, such as in the case of a jack, the guide 16 is naturally fitted with a pedestal 46 that can also be releasably secured to the guide 16.
In a development of the figures 1 to 3 embodiment and referring in addition to figures 5 and 6 the device 10 is supplementable with a force exerting position transferring member in the form of a post 48 that is releasably engaged with the lip 34.1 of the member 34 by means of a locking pin (not shown) that passes along registering apertures 50 in the lip 14.1 and legs 52 forming part of the post 48 that fit straddlably onto the lip 34.1. The post 48 is constrained to be displaced in parallel with the axis 40 of the guide 26 by passing along a post guide 56 formed with a post engaging aperture 58 and a carrier engaging aperture 60. The post guide 56 is releasably fitted to the upper end of the carrier 16 by being simply bolted thereto.
Supplementation of the member 34 with the post 48 is useful in the case where force exertion is desired to be done at a high elevation location. When so supplemented the device 10 can even be used as a permanent support such as a prop.
Although the post 48 is shown in figure 5 as being releasably fitted to the member 34 it can naturally also form an integral part of the runner 12. As yet a further development of the figures 1 to 3 embodiment while referring specifically to figure 7 the device 10 can also serve as a winch. Adaptation of the device for such purpose involves as first step the removal of the pedestal 46. In using the device 10 as winch the runner 12 must thus exert a drawing or pulling force via a cord conventionally in the form of a winch belt 62. The belt 62, as presenting a leading end securing loop, is thus secured to the member 34 via a securing lug extending between an apertures set 64 in the member 34. Stabilisation of the device 10 in exerting a pulling force via the belt 62 is achieved via a guide 66 that is releasably fitted to the end of the carrier 16 and along which the belt 62 is threaded. When so used as winch the end of the guide 16 remote from that from which the belt 62 trails must necessarily be properly anchored. To this effect the outer end of the guide section 16.2 is fitted with an anchoring lug 68 used for securing an anchoring belt 70 to the guide 16 and of which the other end is suitably anchorable. Winching is achieved by simply operating the facility 18 once the belts 62 and 70 are appropriately secured.
In a final embodiment and referring to figure 8 the device 10 is adapted for the lifting and lowering of containers thus serving as container manipulator. To this end the runner 12 extends laterally from the position of carrier engagement by incorporating an engagement beam 72 secured to the body 12.1 of the runner 12 with the beam 72 presenting locations of load securing 74 at its opposite ends. The locations 74 are in the form of a conventional bracket facility including an overhead catch 76 and a bolting member 78 used for securely engaging a shipping container 80. The beam 72 is naturally of adequate length while the runner 12 is to a suitable extent displaceable along the guide 16 to also enable location of the lower load securing position 74.1 on the ground for suitable container engagement.
As the mass involved is normally substantial while a plurality of devices 10, positioned at the various corners of a container desired to be manipulated, are used, the cable 21 of the device 10 of this embodiment is convoluted a number of times along the guide 16 to obtain the desired leverage. The cable 21 consequently extends between its anchor 22 and the mechanism 18 via pulleys 82 on either side of the runner 12 and along an overhead pulley cluster 84. Although the mechanism 18 can also be in the form of the facility 18.1 as discussed above, a more robust mechanism 18 will often be required such as a conventional winch type reel 86 incorporating a locking facility and a controlled releasing mechanism to enable the controlled lowering of a container. It will be appreciated that the figure 8 embodiment is subject to variation such as a smaller distance between the locations of load securing 74 and different securing layouts depending on the kind of load desired to be lifted.
While the device is described with reference to the specific applications of jack, winch, prop or high lifting equipment and container manipulator it will be appreciated that it can be used under all appropriate circumstances where force exertion is required and especially where relaxing of such force must take place under controlled circumstances. The device need not be used in the vertical position only, as clearly shown in the winch application and even not when used as winch.
It is an advantage of the invention as specifically described that force-exerting equipment is provided that is manually operable from a fixed position while the relaxation of force exerted can be done in a controlled fashion.

Claims

(1) A manually operable force-exerting device (10) amongst others employable for exerting a force that results in item displacement comprising
an urging member (12) arranged to at least indirectly exert an urging force on a location required to be so exposed while being mounted to be smoothly displaced along a linear carrier (16) of which at least one end, at least in the case where use of the device (10) involves the exertion of a thrusting force against a support base, is formed to firmly seat against such support base, and
a manually manipulable urging member displacing mechanism (18,18.1 ,86) that is mounted to the carrier (16) and constituted to cause displacement of the urging member (12) in its direction of force exertion via linking means (20,21) extending at least between and cooperating suitably with the displacing mechanism (18,18.1 ,86) and the urging member (12) to result in a change in the length of the linking means (20, 21) extending between the displacing mechanism (18,18.1 , 86) and the urging member (12), as brought about by appropriate manipulation of the displacing mechanism(18,18.1 ,86), causing the appropriate displacement of the urging member (12) with the displacing mechanism (18,18.1 ,86) in at least the case where a relaxation of the force exerted by the urging member (12) is required, once the device (10) is in use, while the mechanism (18,18.1 ,86) is arranged to require such , incorporating a releasing facility for the at least controlled release of the linking means (20,21 );
characterised in that the displacing mechanism (18,18.1 ,86) is stationarily fitted to the carrier (16) while the linking means (20,21) is of flexible nature with the displacing mechanism (18, 18.1 ,86) thus being constituted to displace the urging member (12), as runnably engaging with the carrier (16), in its direction of force exertion in response to a shortening of the appropriate length of the linking means (20,21).
(2) A force-exerting device as claimed in claim 1 that is arranged to cause the linking means (20,21) to exert its urging member displacement force in at least substantially the direction of urging member displacement along the carrier (16) thereby to promote the smooth movement of the urging member (12) along the carrier (16).
(3) A force-exerting device as claimed in claim 1 or claim 2 in which the urging member (12) is formed to fully circumferentially fit the carrier (16), as matchingly formed.
(4) A force-exerting device as claimed in claim 3 in which the urging member (12) is at least fitted with a roller layout (27) that contributes in promoting the smooth displacement of the urging member (12) along the carrier (16).
(5) A force-exerting device as claimed in any one of the preceding claims in which the linking means (20, 21) is in the form of a flexible tie.
(6) A force-exerting device as claimed in claim 5 in which the tie is suitably convoluted between the urging member displacing mechanism (18,18.1,86) and the urging member (12) to give device (10) the desired leverage to enable it to manually manipulably exert its intended force.
(7) A force-exerting device as claimed in claim 6 in which the tie extends between the displacing mechanism (18,18.1 ,86) and a fixed position (22) along the carrier (16) thus being tensionably slung along the urging member (12), at least when exerting an urging force.
(8) A force-exerting device as claimed in any one of the preceding claims in which the displacing mechanism (18,18.1) incorporates a reciprocating action handle (24) of which the motion is transferred via a ratchet mechanism to a linking means manipulator in causing the length of linking means (20,21) extending between the displacing mechanism (18,18.1 ,86) and the urging member (12) to shorten on causing the latter to exert a force.
(9) A force-exerting device as claimed in claim 8 in which the displacing mechanism
(18,18.1 ,86) is fitted with a drum, as linking means manipulator, onto which the linking means (20,21), as of suitable conformation, is releasably woundable, the displacing mechanism (18,18.1,86) also incorporating a release mechanism that permits the controlled release of the urging member (12) along the carrier (16) once die device (10) is used for exerting a force to which the urging member (12) remains subjected once released.
(10) A force-exerting device as claimed in any one of the preceding claims in which the linking means (20,21) is in the form of a belt.
(11) A force-exerting device as claimed in any one of the preceding claims in which the urging member (12), even if supplemented by position of force exertion transferring equipment (48), is configured to provide an urging surface via which an urging force is exerted by the device (10), once in use.
(12) A force-exerting device as claimed in claim 11 in which the urging surface extends to a suitable extent and generally transverse thereto from the axis (40) of the carrier (16) to, amongst others, enable the use of the device (10) as vehicle jack with the displacing mechanism (18,18.1) being appropriately fitted to the carrier (16) to promote the use of the device (10) for such jacking function.
(13) A force-exerting device as claimed in claim 11 or claim 12 that includes position of force exertion transferring equipment (48) in the form of a force exerting position transferring member releasably securable to the urging member (12) to guidably extend adjacent the carrier (16) and along guide means (56), also releasably attachable to the carrier (16), and to the extent of transferring the position of force exertion beyond the outer limit of displacement of the force exerting member (12) along the carrier (16), once the force exerting position transferring member and the guide means (56) are operatively fitted.
(14) A force-exerting device as claimed in any one of the preceding claims in which the urging member (12) presents an urging member securing facility (64) for the releasable securing of a drawing force exerting cord thereto in a way that enables it to extend trailingly with respect to the direction of motion of the force exerting member (12) on operation of the displacing mechanism (18,18.1), once so fitted, while the carrier (16) presents a carrier securing facility (68) for the securing of its leading end to an anchoring position to enable its use in conjunction with such cord thereby to, amongst others, permit the use of the device (10) as winch.
(15) A force-exerting device as claimed in claim 14 in which the carrier (16) presents a guide securing facility for the fitting of a cord guide thereto to cause the direction of displacement of such cord, once fitted to the device (10), to at least generally be along the line of displacement of the urging member (12) in so far as extending adjacent the carrier (16).
(16) A force-exerting device as claimed in any one of claims 1 to 10 in which the urging member (12) is formed with a force exerting position transferring member guidably extending adjacent the carrier (16) and along guide means fitted to the carrier thereby to transfer the position of force exertion beyond the outer limit of displacement of the urging member (12) along the carrier (16) with the displacing mechanism (18,18.1 ,86) being appropriately fitted to the carrier (16) to promote the use of the equipment (10) incorporating the transferring member.
(17) A force-exerting device as claimed in any one of claims 1 tot 7 in which the urging member (12), as extending laterally (72) alongside the carrier (16) from the position of carrier engagement and guidably there alongside, provides at least two locations of load securing (74) spaced from one another to enable the securing of a load requiring such.
(18) A force-exerting device as claimed in claim 17 in which the urging member (12) is arranged while being displaceable to an adequate extent alongside the carrier (16) to enable displacement of its one location of load securing (74.1) to be at least substantially at the level of a device support base when so located.
(19) A force-exerting device as claimed in 18 in which the locations of load securing (74) are adequately spaced while being suitably arranged, at least once ready for such use, to enable use of the device (10), in conjunction with an adequate number of similar devices, in lifting" and lowering a crate or container fitted with an engaging arrangement complementary to those provided by the locations of load securing (74) along the urging member (12).
(20) A force-exerting device as claimed in claim 19 in which the urging member (12) displacing mechanism (86) is in the form of a conventional winch type reel incorporating a locking facility and a controlled releasing mechanism to enable the controlled lowering of an item.
PCT/ZA2002/000028 2001-03-11 2002-03-11 Force exerting device amongst others employable for lifting purposes WO2002072464A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02719545A EP1425240A2 (en) 2001-08-08 2002-03-11 Force exerting device amongst others employable for lifting purposes
CA002461850A CA2461850A1 (en) 2001-03-11 2002-03-11 Force exerting device amongst others employable for lifting purposes
ZA200401863A ZA200401863B (en) 2002-03-11 2004-03-08 Force exerting device amongst others employable for lifting purposes.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ZA200100001 2001-03-11
ZA01/0001 2001-03-11
ZA200106556 2001-08-08
ZA01/6556 2001-08-08

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WO2002072464A2 true WO2002072464A2 (en) 2002-09-19
WO2002072464A3 WO2002072464A3 (en) 2003-03-06

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WO (1) WO2002072464A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113942952A (en) * 2021-10-29 2022-01-18 上海振华重工(集团)股份有限公司南通分公司 End beam jacking jig frame
KR102628167B1 (en) * 2023-06-21 2024-01-23 황하준 Manual heavy weight vertical transport support

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1521646A (en) * 1921-12-27 1925-01-06 Yellow Jack It Mfg Co Lifting jack for automobiles
US4093181A (en) * 1977-05-09 1978-06-06 Ivins Raymond W Powered vehicle jack
FR2606004A1 (en) * 1986-11-04 1988-05-06 Azzopardi Georges System for vertical handling and towing of standardised containers
US4757975A (en) * 1987-05-28 1988-07-19 Wesley Gordon Long travel beam jack
DE9419669U1 (en) * 1994-12-08 1995-03-02 Breit, Eugen, 54441 Wawern Lifting jack (energy-free)
EP0822157A1 (en) * 1996-07-31 1998-02-04 Elephant Chain Block Company Limited Belt hoist

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1135294A (en) * 1997-07-16 1999-02-09 Kensuke Otsubo Manual operation type lightweight elevator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1521646A (en) * 1921-12-27 1925-01-06 Yellow Jack It Mfg Co Lifting jack for automobiles
US4093181A (en) * 1977-05-09 1978-06-06 Ivins Raymond W Powered vehicle jack
FR2606004A1 (en) * 1986-11-04 1988-05-06 Azzopardi Georges System for vertical handling and towing of standardised containers
US4757975A (en) * 1987-05-28 1988-07-19 Wesley Gordon Long travel beam jack
DE9419669U1 (en) * 1994-12-08 1995-03-02 Breit, Eugen, 54441 Wawern Lifting jack (energy-free)
EP0822157A1 (en) * 1996-07-31 1998-02-04 Elephant Chain Block Company Limited Belt hoist

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 05, 31 May 1999 (1999-05-31) & JP 11 035294 A (OTSUBO KENSUKE), 9 February 1999 (1999-02-09) *
See also references of EP1425240A2 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113942952A (en) * 2021-10-29 2022-01-18 上海振华重工(集团)股份有限公司南通分公司 End beam jacking jig frame
KR102628167B1 (en) * 2023-06-21 2024-01-23 황하준 Manual heavy weight vertical transport support

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WO2002072464A3 (en) 2003-03-06
CA2461850A1 (en) 2002-09-19

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