WO2011151633A2 - Device for positioning or stabilising a load attached to a crane - Google Patents
Device for positioning or stabilising a load attached to a crane Download PDFInfo
- Publication number
- WO2011151633A2 WO2011151633A2 PCT/GB2011/050817 GB2011050817W WO2011151633A2 WO 2011151633 A2 WO2011151633 A2 WO 2011151633A2 GB 2011050817 W GB2011050817 W GB 2011050817W WO 2011151633 A2 WO2011151633 A2 WO 2011151633A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- leash
- load
- rotatable member
- positioning
- attached
- Prior art date
Links
- 230000003019 stabilising effect Effects 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 13
- 210000003813 thumb Anatomy 0.000 claims description 3
- 239000000725 suspension Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/10—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for preventing cable slack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/18—Power-operated hoists
Definitions
- the present invention relates to a device and method for positioning or stabilizing a load attached to apparatus capable of lifting and moving suspended loads. More particularly, the present invention relates to a device and method for safely positioning a suspended load attached to a crane hook.
- Cranes are commonly used in a range of industries to lift and move heavy loads. For example, cranes can be found on ship docks and in the construction industry.
- a device for positioning a load attached to apparatus capable of lifting and moving suspended loads comprising:
- a reel comprising a rotatable member
- the leash may be attached to the load being lifted using any suitable mechanical means.
- the leash may be attached to a lower (e.g. bottom) surface of the load by being threaded through an opening (e.g. an eyelet) in the lower surface of the load.
- the leash may be any type of flexible arrangement such as a cable, cord, rope, wire, chain, tape, mesh and the like which is capable of being located around the rotatable member.
- the means for attachment may, for example, be an eyelet, hook, clamp or suction cup.
- the attachment means may be removable from the end of the leash. A range of attachment means may be provided.
- the leash may be of any suitable length and may, for example, be about 1
- the reel comprising the rotatable member may comprise retraction means.
- the retraction means may be spring-loaded so that any slack in the leash may be removed and a certain degree of tension may therefore be maintained in the leash during use. This overcomes the danger of any slack leash lying on the ground and any slack leash wrapping around the operator during use. However, in the event that the tension in the leash extends beyond a certain level so that an operator may accidentally be lifted off the ground then there may be a mechanism in the reel to release the tension in the leash.
- the mechanism may comprise a normally activated but releasable brake.
- the reel may comprise a handle through which the leash may be controlled during use.
- a brake release operating member may be provided at the handle, such as at a position corresponding to a user's palm.
- the device may be configured such that normal holding of the handle releases the brake.
- a second operating member may be provided at the handle.
- the second operating member may be configured to act against the brake release operating member such that the brake is actuated even when the device is being held. By pressing on the second operating member the leash may be held securely held and locked in position.
- the handle may also comprise a thumb lock to fix the leash in place for an extended period.
- the leash located around the rotatable member may be retractable using any suitable means.
- the retraction may also be automatic.
- the reel may comprise a second brake, such as a friction brake, and/or a damper mechanism to avoid retraction occurring too quickly.
- the leash may be coloured and/or fluorescent.
- the present invention therefore relates to a retractable leash which is capable of being attached to a suspended load.
- An operator can maneuver the position of the suspended load on the lifting apparatus (e.g. a crane) by pulling the leash in a particular direction. This not only allows easy maneuvering but is also very safe as there is no slack in the leash.
- a load attached to apparatus capable of lifting and moving suspended loads comprising:
- providing a reel comprising a rotatable member; providing a leash located around the rotatable member;
- the leash located around the rotatable member is retractable and the leash can be moved by an operator to position the load.
- the method of positioning a load may use the device as defined in the first aspect.
- a crane lifting a load attached to a device as defined in the first aspect there is provided a crane lifting a load attached to a device as defined in the first aspect.
- Figure 1 is a diagrammatic representation of a device in use for safely positioning a suspended load attached to a crane hook
- Figure 2 is an embodiment of the device of Figure 1.
- the present invention resides in the provision of a device and method for positioning a suspended load attached to apparatus capable of lifting and moving loads.
- Figure 1 is a representation of a device according to the present invention.
- FIG. 1 shows that there is a crane, generally designated 10.
- the crane comprises a substantially vertical member 12 and a substantially horizontal member 1 .
- the hook 16 is inserted through an opening 20 on top of a load 18 being lifted by the crane 10.
- the operator 24 is holding a device according to the present invention.
- the device is shown to comprise a reel 26 and a retractable leash 28.
- the reel 26 is spring-activated and is shown to tension the leash 28 so that there is no slack.
- the device also comprises a handle and thumb lock which can be used to securely hold the leash in place.
- the load 18 will be lifted by the crane 10 until the leash 28 can be safely attached to the load.
- the leash 28 is attached to a lower surface of the load 18 such as through an eyelet 22.
- the load 18 can then be raised further if necessary to a desired height. As the load 18 is raised more of the leash 28 will be retracted from the reel 26. Once the leash 28 reaches the desired length then the reel 26 which is spring-activated will keep the leash taught so that no slack is present.
- the brake can be operated to hold the leash 28 and the operator 24 can then pull the leash 28 in a required direction to easily maneuver and position the suspended load 18.
- a thumb-lock 30 may be used to lock the leash 28 in place.
- Figure 2 shows an embodiment of the device. Whilst specific embodiments of the present invention have been described above, it will be appreciated that departures from the described embodiments may still fall within the scope of the present invention. For example, any suitable type of retractable leash may be used. Moreover, any suitable type of retraction means may be used to retract and extend the leash.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
There is herein described a device and method for positioning a load (18) attached to apparatus (10) capable of lifting and moving loads in suspension. More particularly, there is described a device and method for safely positioning a suspended load (18) attached to a crane hook (16).
Description
DEVICE FOR POSITIONING OR STABILISING A LOAD
ATTACHED TO A CRANE
FIELD OF THE INVENTION
The present invention relates to a device and method for positioning or stabilizing a load attached to apparatus capable of lifting and moving suspended loads. More particularly, the present invention relates to a device and method for safely positioning a suspended load attached to a crane hook. BACKGROUND OF THE INVENTION
Cranes are commonly used in a range of industries to lift and move heavy loads. For example, cranes can be found on ship docks and in the construction industry.
During the lifting and moving of heavy loads it has been the standard practice to attach a simple cord to the bottom of a load to allow a workman to maneuver the position of the load. These cords are commonly referred to as 'tag lines'. However, there are a number of disadvantages and dangers associated with the use of tag lines. The tag lines can easily become wrapped around a workman attempting to maneuver the load which can be extremely dangerous as the workman can then accidentally be lifted by the crane movements with serious injuries occurring. When a load is lowered this can also result in a large amount of slack in the tag line with this simply lying on the ground. With a large amount of slack tag line lying on the ground this can easily become entangled with other
articles and with the workman maneuvering the load on the crane. The slack tag line can also become entangled with other workmen in the near vicinity who may accidentally walk over the tag line.
It is an object of at least one aspect of the present invention to obviate or mitigate at least one or more of the aforementioned problems.
It is a further object of at least one aspect of the present invention to provide an improved device and method for positioning a load attached to apparatus capable of lifting and moving suspended loads.
It is a further object of at least one aspect of the present invention to provide an improved device and method for safely positioning a suspended load attached to a crane hook.
SUMMARY OF THE INVENTION
According to a first aspect of the present invention there is provided a device for positioning a load attached to apparatus capable of lifting and moving suspended loads, said device comprising:
a reel comprising a rotatable member;
a leash located around the rotatable member and attachable to the load, wherein the leash located around the rotatable member is retractable.
The leash may be attached to the load being lifted using any suitable mechanical means. For example, the leash may be attached to a lower (e.g.
bottom) surface of the load by being threaded through an opening (e.g. an eyelet) in the lower surface of the load.
The leash may be any type of flexible arrangement such as a cable, cord, rope, wire, chain, tape, mesh and the like which is capable of being located around the rotatable member.
At the end of the leash there may be means for attaching the leash to the load to be maneuvered. The means for attachment may, for example, be an eyelet, hook, clamp or suction cup. The attachment means may be removable from the end of the leash. A range of attachment means may be provided.
The leash may be of any suitable length and may, for example, be about 1
- 20 m in length.
The reel comprising the rotatable member may comprise retraction means. The retraction means may be spring-loaded so that any slack in the leash may be removed and a certain degree of tension may therefore be maintained in the leash during use. This overcomes the danger of any slack leash lying on the ground and any slack leash wrapping around the operator during use. However, in the event that the tension in the leash extends beyond a certain level so that an operator may accidentally be lifted off the ground then there may be a mechanism in the reel to release the tension in the leash. The mechanism may comprise a normally activated but releasable brake.
The reel may comprise a handle through which the leash may be controlled during use. A brake release operating member may be provided at the
handle, such as at a position corresponding to a user's palm. The device may be configured such that normal holding of the handle releases the brake.
A second operating member may be provided at the handle. The second operating member may be configured to act against the brake release operating member such that the brake is actuated even when the device is being held. By pressing on the second operating member the leash may be held securely held and locked in position. The handle may also comprise a thumb lock to fix the leash in place for an extended period.
The leash located around the rotatable member may be retractable using any suitable means. The retraction may also be automatic. However, to control the speed and/or rate of retraction the reel may comprise a second brake, such as a friction brake, and/or a damper mechanism to avoid retraction occurring too quickly.
To assist in use the leash may be coloured and/or fluorescent.
The present invention therefore relates to a retractable leash which is capable of being attached to a suspended load. An operator can maneuver the position of the suspended load on the lifting apparatus (e.g. a crane) by pulling the leash in a particular direction. This not only allows easy maneuvering but is also very safe as there is no slack in the leash.
According to a second aspect of the present invention there is provided a method of positioning a load attached to apparatus capable of lifting and moving suspended loads, said method comprising:
providing a reel comprising a rotatable member;
providing a leash located around the rotatable member;
wherein the leash located around the rotatable member is retractable and the leash can be moved by an operator to position the load.
The method of positioning a load may use the device as defined in the first aspect.
According to a third aspect of the present invention there is provided a crane lifting a load attached to a device as defined in the first aspect.
BRIEF DESCRIPTION OF THE DRAWINGS
Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawing in which:
Figure 1 is a diagrammatic representation of a device in use for safely positioning a suspended load attached to a crane hook; and
Figure 2 is an embodiment of the device of Figure 1.
BRIEF DESCRIPTION
Generally speaking, the present invention resides in the provision of a device and method for positioning a suspended load attached to apparatus capable of lifting and moving loads.
Figure 1 is a representation of a device according to the present invention.
Figure 1 shows that there is a crane, generally designated 10. The crane comprises a substantially vertical member 12 and a substantially horizontal member 1 . Located at an end of the substantially horizontal member 14 there is
a hook 16. The hook 16 is inserted through an opening 20 on top of a load 18 being lifted by the crane 10.
Below the load 18 there is shown an operator 24. The operator 24 is holding a device according to the present invention. The device is shown to comprise a reel 26 and a retractable leash 28. The reel 26 is spring-activated and is shown to tension the leash 28 so that there is no slack. Although not shown the device also comprises a handle and thumb lock which can be used to securely hold the leash in place.
In use, the load 18 will be lifted by the crane 10 until the leash 28 can be safely attached to the load. Usually the leash 28 is attached to a lower surface of the load 18 such as through an eyelet 22. The load 18 can then be raised further if necessary to a desired height. As the load 18 is raised more of the leash 28 will be retracted from the reel 26. Once the leash 28 reaches the desired length then the reel 26 which is spring-activated will keep the leash taught so that no slack is present. The brake can be operated to hold the leash 28 and the operator 24 can then pull the leash 28 in a required direction to easily maneuver and position the suspended load 18. A thumb-lock 30 may be used to lock the leash 28 in place. During use if the length of the leash 28 changes then more leash 28 can be extended from the reel 26. Alternatively, if less leash 28 is required then as some slack temporarily occurs then this will automatically be retracted into the reel 26 using the spring-activated means.
Figure 2 shows an embodiment of the device.
Whilst specific embodiments of the present invention have been described above, it will be appreciated that departures from the described embodiments may still fall within the scope of the present invention. For example, any suitable type of retractable leash may be used. Moreover, any suitable type of retraction means may be used to retract and extend the leash.
Claims
1 . A device for positioning a load attached to apparatus capable of lifting and moving suspended loads, said device comprising:
a reel comprising a rotatable member;
a leash located around the rotatable member;
wherein the leash located around the rotatable member is retractable.
2. A device according to claim 1 , wherein the leash is attached to the load being lifted using any suitable mechanical means.
3. A device according to any of claims 1 or 2, wherein the leash is attached to the load by removable attachment means.
4. A device according to any preceding claim, wherein the leash is any type of flexible arrangement such as a cable, cord, rope, wire, chain, tape, mesh and the like which is capable of being located around the rotatable member.
5. A device according to any preceding claim, including a range of removable attachment means.
6. A device according to any preceding claim, wherein the leash is of any suitable length such as about 1 - 20 m in length.
7. A device according to any preceding claim, wherein the reel comprising the rotatable member comprises retraction means capable of retracting or extending the length of the leash.
8. A device according to claim 7, wherein the retraction means are spring- loaded so that any slack in the leash is capable of being removed and a certain degree of tension is therefore maintained in the leash during use.
9. A device according to any preceding claim, wherein the reel comprises a handle through which the leash is capable of being controlled during use, and wherein by pressing an operating member provided at the handle the leash is capable of being held securely in position using a mechanical arrangement to abut against the leash and securely hold it in place
10. A device according to any preceding claim, including a normally activated brake for fixing the leash in place which is releasable by operating an operating member.
1 1 . A device according to any of claims 9 and 10, wherein the handle comprises a thumb lock capable of fixing the leash in place.
12. A device according to any preceding claim, wherein the leash located around the rotatable member is capable of being automatically retracted and/or extended.
13. A device according to any preceding claim, wherein to control the speed and/or rate of retraction the reel comprises a brake and/or damper mechanism to avoid retraction occurring too quickly.
14. A device according to any preceding claim, wherein the leash is coloured and/or fluorescent.
15. A method of positioning a load attached to apparatus capable of lifting and moving suspended loads, said method comprising:
providing a reel comprising a rotatable member;
providing a leash located around the rotatable member;
wherein the leash located around the rotatable member is retractable and the leash can be moved by an operator to position the load.
16. A method according to claim 15 of positioning a load attached to apparatus capable of lifting and moving suspended loads using a device according to any of claims 1 to 14.
17. A crane lifting a load attached to a device according to any of claims 1 to 14.
18. A device for positioning a load attached to apparatus capable of lifting and moving suspended loads as hereinbefore described and/or as shown in the accompanying figures.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11718476.2A EP2576415B1 (en) | 2010-06-04 | 2011-04-26 | Device for positioning or stabilising a load attached to a crane |
US13/701,680 US20150001330A1 (en) | 2010-06-04 | 2011-04-26 | Device for positioning or stabilising a load attached to a crane |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1009358.1A GB2483217A (en) | 2010-06-04 | 2010-06-04 | Retractable tag line |
GB1009358.1 | 2010-06-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011151633A2 true WO2011151633A2 (en) | 2011-12-08 |
WO2011151633A3 WO2011151633A3 (en) | 2012-11-01 |
Family
ID=42471151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2011/050817 WO2011151633A2 (en) | 2010-06-04 | 2011-04-26 | Device for positioning or stabilising a load attached to a crane |
Country Status (4)
Country | Link |
---|---|
US (1) | US20150001330A1 (en) |
EP (1) | EP2576415B1 (en) |
GB (1) | GB2483217A (en) |
WO (1) | WO2011151633A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108861986A (en) * | 2018-08-30 | 2018-11-23 | 鹤壁万丰矿山机械制造有限公司 | Steel cable belt friction type winder |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10392120B2 (en) * | 2016-04-19 | 2019-08-27 | General Electric Company | Propulsion engine for an aircraft |
US10099898B2 (en) | 2016-08-29 | 2018-10-16 | Clayton Quinn | Apparatus includes elastically deformable member having terminal assemblies |
FR3141455A1 (en) | 2022-10-27 | 2024-05-03 | Enedis | Suspended load guidance system |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3062479A (en) * | 1959-09-14 | 1962-11-06 | Mccaffrey Ruddock Tagline Corp | Means for facilitating replacement of springs in spring rewound tagline devices |
US3755725A (en) * | 1972-02-03 | 1973-08-28 | American Chain & Cable Co | Variable speed load balancer |
US4083510A (en) * | 1976-06-14 | 1978-04-11 | Mccaffrey-Ruddock Tagline Corporation | Self-adjusting fairlead for spring rewound tagline device |
US5850928A (en) * | 1989-05-02 | 1998-12-22 | Kahlman; Sture | Arrangement for a vertical and horizontal goods hoist |
US5074483A (en) * | 1990-08-03 | 1991-12-24 | Wang Wen Chang | Recoil windlass |
US5173067A (en) * | 1992-02-11 | 1992-12-22 | Pegasus Products, Inc. | Scuba take-up reel |
US5388877A (en) * | 1993-09-07 | 1995-02-14 | Wenk; Carl J. | Hunting bow retriever |
US5540468A (en) * | 1994-09-12 | 1996-07-30 | Fassman; Arnold | Door opening and closing device for handicapped persons |
US5575517A (en) * | 1994-10-21 | 1996-11-19 | Thomas; Bruce A. | Portable, hand-operated hoist |
SE508011C2 (en) * | 1995-12-14 | 1998-08-10 | Protema Ab | Suspended lifting device with motor driven rope drum |
BE1010027A6 (en) * | 1996-03-04 | 1997-11-04 | Fabert | Automatable tool to maintain in a closed position and notify the cover of a container where the content prevented by its closing its normal dimensions and secure transport such as in the case of a motor vehicle trunk. |
US5865426A (en) * | 1996-03-27 | 1999-02-02 | Kazerooni; Homayoon | Human power amplifier for vertical maneuvers |
JPH10129980A (en) * | 1996-10-29 | 1998-05-19 | Hitachi Constr Mach Co Ltd | Crane having hydraulic tag line device |
US6241462B1 (en) * | 1999-07-20 | 2001-06-05 | Collaborative Motion Control, Inc. | Method and apparatus for a high-performance hoist |
GB2363111A (en) * | 2000-05-24 | 2001-12-12 | Richard Marsh | Self-winding underwater reel |
US20030154931A1 (en) * | 2002-02-19 | 2003-08-21 | Morris Ostrowiecki | Vinyl bag package and storage device therefor |
GB2411776B (en) * | 2004-03-03 | 2007-12-12 | Hugh Michael Oppen Pratt | Tag line insulator |
-
2010
- 2010-06-04 GB GB1009358.1A patent/GB2483217A/en not_active Withdrawn
-
2011
- 2011-04-26 EP EP11718476.2A patent/EP2576415B1/en not_active Not-in-force
- 2011-04-26 WO PCT/GB2011/050817 patent/WO2011151633A2/en active Application Filing
- 2011-04-26 US US13/701,680 patent/US20150001330A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
None |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108861986A (en) * | 2018-08-30 | 2018-11-23 | 鹤壁万丰矿山机械制造有限公司 | Steel cable belt friction type winder |
Also Published As
Publication number | Publication date |
---|---|
WO2011151633A3 (en) | 2012-11-01 |
EP2576415B1 (en) | 2016-02-24 |
GB201009358D0 (en) | 2010-07-21 |
US20150001330A1 (en) | 2015-01-01 |
EP2576415A2 (en) | 2013-04-10 |
GB2483217A (en) | 2012-03-07 |
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