EP3466867A1 - Rope management apparatus - Google Patents
Rope management apparatus Download PDFInfo
- Publication number
- EP3466867A1 EP3466867A1 EP18198682.9A EP18198682A EP3466867A1 EP 3466867 A1 EP3466867 A1 EP 3466867A1 EP 18198682 A EP18198682 A EP 18198682A EP 3466867 A1 EP3466867 A1 EP 3466867A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- redirect
- assembly
- sheave
- sheaves
- mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
- A63G21/00—Chutes; Helter-skelters
- A63G21/22—Suspended slideways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B12/00—Component parts, details or accessories not provided for in groups B61B7/00 - B61B11/00
- B61B12/12—Cable grippers; Haulage clips
- B61B12/122—Cable grippers; Haulage clips for aerial ropeways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
- A62B35/0043—Lifelines, lanyards, and anchors therefore
- A62B35/0068—Anchors
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B27/00—Apparatus for climbing poles, trees, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B12/00—Component parts, details or accessories not provided for in groups B61B7/00 - B61B11/00
- B61B12/12—Cable grippers; Haulage clips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B7/00—Rope railway systems with suspended flexible tracks
- B61B7/02—Rope railway systems with suspended flexible tracks with separate haulage cables
-
- 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
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
-
- 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
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/046—Openable pulley blocks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Description
- This invention relates to rope management apparatus. In particular, it relates to a type of rope handling apparatus commonly known as a "redirect".
- In
EP-A-3 159 052 , the present applicant has disclosed apparatus for moving objects in the manner of a Tyrolean traverse and a number of further configurations that permit a load to be moved. To enable the apparatus to work correctly and efficiently, ropes that it runs along and is controlled by need to be carefully anchored and managed. In known installations, arrangements for anchoring ropes are typically ad hoc, involving attaching pulleys to anchorage points (such as tree trunks) using ropes. They are complex to install, time consuming to set up, and are difficult to maintain in correct operation. A key feature of such an installation is that it is typically necessary for different parts of multiple ropes to extend in different directions (e.g., a generally horizontal part that spans a gap and a generally vertical part that extends to an anchorage, winch, etc.). The installation must allow these ropes to move freely and independently of one another with a minimum of resistance. - An aim of this invention is to provide apparatus that enables installation of a rope system, for example for installation of a Tyrolean traverse.
- To this end, from a first aspect, the present invention provides redirect apparatus comprising:
- a. a sheave assembly comprising a plurality of sheaves disposed for rotation about parallel axes; and
- b. a mounting assembly that is suitable for connection to a support
- Such apparatus enables sheaves to be mounted in a position required to achieve rope redirection in a predictable, convenient manner and in such a way that separation is maintained between the ropes; that is, with clearance between adjacent ropes.
- In some embodiments, the mounting assembly and the sheave assembly can be pivoted with respect to one another about a plurality of axes.
- The sheave assembly may comprise two plates disposed axially to opposite sides of the sheaves. One or all of the sheaves is secured to one plate for free rotation relative to the plate. The plates are typically hinged with respect to one another. One plate can be pivoted between a closed configuration in which it lies adjacent to the sheaves and an open configuration in which it is remote from one or all of the sheaves. This allows ropes to be introduced into the apparatus without the need to free an end of the rope from an anchorage. Most typically, connection components, such as bolts are provided, that are operable to releasably retain the plates in the closed configuration. At least one of the connection components is coaxial with a respective one of the sheaves. This may take the form of an axle bolt that is concentric with one of the sheaves. The plates may be connected to and can pivot around a main axle.
- The mounting assembly may include two mounting members that can pivot with respect to one another. Typically, the mounting members can pivot with respect to one another about the same axis (or other, substantially parallel axes) as the mounting assembly and the sheave assembly pivot with respect to one another.
- One or each mounting member typically includes a plate. One or each mounting member may have a connection formation, such as an eye, that can be used to facilitate connection between the mounting member and a support.
- In embodiments that include a main axle, the mounting members may be connected to the main axle.
- From a second aspect, the invention provides a rigging installation including a redirect assembly embodying the first aspect of the invention and a plurality of ropes that pass through the redirect assembly.
- A typical embodiment includes two redirect assemblies and a plurality of lines, one or more of which pass through both redirect assemblies.
- In a rigging installation embodying this aspect of the invention, one or each redirect assemblies may be disposed with its mounting assembly connected to a support in the form of a rigid object such as a trunk or branch of a tree or an object installed specifically to serve as a support.
- Most advantageously, the lines are maintained in spatial separation within the or each redirect assembly. This allows each line to move independently of the others.
- One type of installation further includes a carriage assembly that can be caused to move along on one or more line. The carriage may include a lifting arrangement suitable for connection to a load that can, under the control of one or more lines, be caused to raise or lower with respect to the carriage.
- At least one line may pass over a single sheave within a redirect assembly. One or more lines may pass over more than one sheave within a redirect assembly. This arrangement serves to spatially separate the lines as they pass through the redirect assembly, ensuring that clearance is maintained between them. It also has the effect of increasing the bend radius that the line will experience, as compared with a line passing over a single sheave, which is beneficial for the mechanical efficiency of the installation.
- An embodiment of the invention will now be described in detail, by way of example, and with reference to the accompanying drawings, in which:
-
Figure 1 shows redirect apparatus embodying the invention in an open configuration; -
Figure 2 shows the apparatus ofFigure 1 in a closed configuration; -
Figures 3 and 4 show the apparatus ofFigure 1 mounted on a cylindrical support; -
Figure 5 show the apparatus mounted on a cylindrical support pivoting to align with ropes; -
Figure 6 shows the apparatus ofFigure 1 mounted on an edge of a block-shaped support; -
Figure 7 shows the apparatus ofFigure 1 mounted on a thin of a support; -
Figure 8 shows the apparatus ofFigure 1 mounted on a flat surface of a support; -
Figure 9 shows the apparatus ofFigure 1 in the open condition with ropes being installed; -
Figure 10 shows a Tyrolean traverse installation using two instances of redirect apparatus of the preceding figures; and -
Figure 11 is a detail of the installation ofFigure 10 . - Redirect apparatus embodying the invention is constructed on a centre axle to which components are pivotally connected. The main components of the redirect apparatus are a
sheave plate 12, aclosure plate 14 and twomounting plates - The
sheave plate 12 has a smooth flat inner surface. Thesheave plate 12 carries fivesheaves 20a ... 20e adjacent to the inner surface of thesheave plate 12 and an outer surface that is generally flat, with ribs and lands formed on it as required to provide thesheave plate 12 with sufficient strength. Each sheave 20 is carried on arespective axle bolt 22 that passes through thesheave plate 12. Each sheave 20 can rotate freely upon itsaxle bolt 22, and theaxle bolts 22 can rotate with respect to thesheave plate 12. Eachaxle bolt 22 has ahead 24 located adjacent to an outer surface of thesheave plate 12 and can rotate within thesheave plate 12. An end portion of eachaxle bolt 22 opposite the head is externally threaded. A respective throughhole sheave plate 12 in an upward extension and a downwardly projecting lug of thesheave plate 12. Threesimilar mounting brackets 30 are carried on thesheave plate 12. Each mounting bracket comprises a plate of metal secured to thesheave plate 12 and extending in a plane perpendicular to that of thesheave plate 12. Each mountingbracket 30 has a circular mounting aperture extending through it, the mounting apertures of the three mountingbrackets 30 being coaxial. - The
closure plate 14 has a smooth flat inner surface and an outer surface that is generally flat, with ribs and lands formed on it as required to provide theclosure plate 14 with sufficient strength. Theclosure plate 14 has a peripheral shape that approximately coincides with that of thesheave plate 12 when the twoplates bushes 36, each located within a respective aperture through theclosure plate 14. A respective through hole is formed through theclosure plate 14 in an upward extension and a downwardly projecting lug of theclosure plate 14, arespective locking pin brackets 44 are carried on theclosure plate 14. Each mountingbracket 44 comprises a plate of metal secured to theclosure plate 14 and extending in a plane perpendicular to that of theclosure plate 14. Each mountingbracket 44 has a circular mounting aperture extending through it, the mounting apertures of the three mountingbrackets 44 being coaxial. - The two mounting
plates plate eyelet 48 being located within each aperture. Three similar mountingbrackets plate plate plate plate bracket brackets - In each case, the mounting apertures of the mounting
brackets - The apparatus further includes two
cylindrical spacing rollers 60, each of which has a concave outer surface and an axial through bore that is provided with a bronze bush. - The components of this embodiment apparatus are hinged together about a main axle. The apparatus is assembled by passing the main axle through the mounting apertures of the mounting
brackets sheave plate 12, theclosure plate 14 and the mountingplates plates brackets bracket sheave plate 12, theclosure plate 14 and the mountingplates respective spacing roller 60 is carried on the main axle to maintain spacing between the groups. End portions of the main axle are externally threaded, and anut 62 is applied to each of these to retain all the components in place on the main axle. Washers are also carried on the main axle, to act as thrust bearings to minimise axial movement of components on the main axle while allowing free pivotal movement. Outwardly from the nuts 62, aswivelling lifting eye 66 is carried on each threaded end portions of the main axle. It will be appreciated that this particular arrangement is just form of hinge that can be implemented to allow theplates plates - The two main functional configurations of the
sheave plate 12 and theclosure plate 14 are shown inFigures 1 and 2 . In the open configuration, shown inFigure 1 , thesheave plate 12 and theclosure plate 14 are pivoted to extend from the main axle 10 in different directions, so spacing theplates sheave plate 12 and theclosure plate 14 are pivoted to a position in which they are parallel with one another, as shown inFigure 2 . - The mounting
brackets sheave plate 12 and theclosure plate 14 are positioned on theplates - the
plates - each of the
axle bolts 22 is in alignment with a respective one of the tappedbushes 36; and - the locking pins 40, 42 are each in alignment with one of the
holes - Therefore, in the closed configuration, each
axle bolt 22 can be turned using thehead 24 to cause its threaded end portion to enter into and be retained within a tappedbush 36 to create a strong and secure shaft on which the corresponding sheave 20 can turn. Each lockingpin hole sheave plate 12 and theclosure plate 14. - Examples of installations of the redirect apparatus will now be described.
- In
Figures 3 to 5 , the apparatus is shown on an uprightcylindrical support 70, such as a tree trunk. The apparatus is placed with inner surfaces of the mountingplates support 70. Flexible fastenings, such as ratchet straps, are passed through theeyelets 48 of the mountingplates support 70 and are tightened to clamp the mountingplates Figures 4 and5 show that theclosed sheave plate 12 andclosure plate 14 can pivot together on the main axle so that the sheaves can move into a suitable alignment without requiring any movement of the mountingplates support 70. - In the example above, the support is a rigid, upright object. However, installations can be envisaged where there is no such object and the apparatus is instead supported from rigging formed of ropes, cables, webbing or other flexible elements.
- Alternatively, a rope can be installed into the redirect apparatus by threading the rope between the
closed sheave plate 12 andclosure plate 14. -
Figure 6 shows an arrangement for mounting on an edge of a horizontal and vertical surface of ablock 74. In this arrangement, screws may be passed through theeyelets 48 of the mountingplates spacers 76 may be located between the mounting plates and theblock 74.Figures 7 and 8 show a similar arrangement for mounting the apparatus on aslim support 78 or aflat surface 80. In each case, the mountingplates - Once the apparatus has been installed as described above, ropes can be installed. This embodiment allows three ropes to be redirected between a generally vertical alignment and a generally horizontal alignment.
- The
spacing rollers 60 have an outside diameter that is greater than the other elements carried on the main axle, so they are the first part of the assembly to come in to contact with a support structure that the redirect apparatus is attached to (wall, tree, etc). Therefore, even if the rollers are unable to rotate due to contact with the structure, theplates - To install the ropes, the
axle bolts 22 and the locking pins 40, 42 are all loosened to allow thesheave plate 12 and theclosure plate 14 to be moved to the open configuration, as shown inFigure 9 . - A first rope 84 (a control line, in this example) is passed over a
first sheave 20a, which is lowermost in the installed apparatus. A second rope 86 (a lifting line, in this example) passes over second andthird sheaves first sheave 20a, and respectively closer to and further from the main axle 10 than thefirst sheave 20a. A third rope 88 (a main line, in this example) passes over fourth andfifth sheaves third sheaves third sheaves closure plate 14 is pivoted to the closed configuration, and theaxle bolts 22 and the locking pins 40, 42 are all secured. - It will be seen that the sheaves 20 are arranged within the apparatus such that they maintain separation between the
ropes - With reference to
Figures 10 and11 , an installation for performing a Tyrolean traverse includes tworedirect apparatus carriage 104, being an embodiment of the invention ofEP-A-3 159 052 . - Each
redirect apparatus plates support redirect apparatus 100 is located at what will be referred to as the "anchor end", and the other at the "drive end". - The three
ropes - The
main line 88 extends from awinch 98 at the drive end, through thesecond redirect apparatus 102, to thefirst redirect apparatus 100 and then to a fixedanchor 118. Themain line 88 passes through thecarriage 104, upper sheaves of thecarriage 104 being carried on themain line 88, which serves as the principal load-bearing line for the installation. The liftingline 86 extends from awinch 96 at the drive end, through thesecond redirect apparatus 102, to the first redirect apparatus and then to a fixedanchor 118. The liftingline 86 passes through thecarriage 104, where it is supported on lower sheaves of thecarriage 104 and where it supports apulley 106 of thecarriage 104. Thecontrol line 84 extends from awinch 94 through thesecond redirect apparatus 102 where it is looped round a lower sheave and returns to a fixed point on thesecond redirect apparatus 102. As themain line 88 is tensioned, thesheave plate 12 and theclosure plate 14 pivot to ensure that the sheaves 20 are properly aligned with the ropes. - Following installation, the
main line 88 may remain fixed, which thelifting line 86 and thecontrol line 84 are shortened or lengthened by thewinches EP-A-3 159 052 and as known to those skilled in the technical field. This can cause thecarriage 104 to move along themain line 88 and can cause thepulley 106 to be raised or lowered with or without a load being attached. - Typically, each of the
redirect apparatus anchors - All examples below show the redirect apparatus set up in a vertical orientation, but all examples shown could be implemented in a horizontal and other orientations as well.
- A redirect embodying the invention does not only have application as part of a Tyrolean traverse; it can be combined with any traditional rigging and hauling system to provide an end-of-line anchoring system.
- The redirects can be used with any rope-based rigging system that would benefit from a pulley with the ability to redirect a line and/or track a load because the efficiency of the system remains the same, even though alignment has changed. Examples include:
- a winching installation using one rope (single or doubled back to a pin) where the winched load moves from-side-to-side whilst being manoeuvred;
- a winching or lifting installation incorporating two lines where, for example, the lines are attached to both ends of a load (such as a log). This allows the orientation of the load to be altered by changing the relative lengths of the two ropes to manipulate the load around an obstacle; or
- any lifting installation which requires the use of a lifting line and a control line. Although the example uses a carriage as disclosed in
EP-A-3 159 052 , embodiments of this invention may be used, for example, with the prior art arrangements disclosed in that application.
Claims (15)
- A redirect apparatus comprising:a. a sheave assembly comprising a plurality of sheaves (20) disposed for rotation about parallel axes; andb. a mounting assembly (16, 18) that is suitable for connection to a support (70)characterised in that the mounting assembly and the sheave assembly are interconnected such that they can be pivoted with respect to one another about one or more axis that is generally normal to the axes of rotation of the sheaves.
- A redirect according to claim 1 in which the sheave assembly comprises two plates (12, 14) disposed axially to opposite sides of the sheaves (20).
- A redirect according to claim 2 in which one or all of the sheaves is secured to one plate (12) for free rotation relative to the plate.
- A redirect according to claim 2 or claim 3 in which a plate (14) can be pivoted between a closed configuration in which it lies adjacent to the sheaves (20) and an open configuration in which it is remote from one or all of the sheaves.
- A redirect according to claim 4 comprising connection components (22, 42) that are operable to releasably retain the plates in the closed configuration.
- A redirect according to claim 5 in which at least one of the connection components is an axial bolt (22) that is concentric with a sheave (20).
- A redirect according to any one of claims 2 to 6 in which the plates are connected to and can pivot around an axle or assembly of axles.
- A redirect according to any preceding claim in which the mounting assembly includes two mounting members that can pivot with respect to one another about the same axis as the mounting assembly and the sheave assembly pivot with respect to one another.
- A redirect according to claim 8 in which one or each mounting member includes a plate (16, 18).
- A rigging installation including a redirect assembly according to any preceding claim and a plurality of lines (84, 86, 88) that pass through the redirect assembly.
- A rigging installation according to claim 10 that includes two redirect assemblies according to any one of claims 1 to 9 and a plurality of lines, one or more of which pass through both redirect assemblies, the lines (84, 86, 88) being maintained in spatial separation within the or each redirect assembly.
- A rigging installation according to any one of claim 10 or 11 further including a carriage assembly (104) that can be caused to move along on one or more line.
- A rigging installation according to claim 12 including a lifting arrangement (106) suitable for connection to a load that can, under the control of one or more line, be caused to rise or to lower with respect to the carriage.
- A rigging installation according to any one of claims 10 to 13 in which at least one line (84) passes over a single sheave (20a) within a redirect assembly.
- A rigging installation according to any one of claims 10 to 14 in which at least one line (86, 88) passes over more than one single sheave (20b, 20c; 20d, 20e) within a redirect assembly.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1716220.7A GB2568860B8 (en) | 2017-10-05 | 2017-10-05 | Rope management apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3466867A1 true EP3466867A1 (en) | 2019-04-10 |
Family
ID=60326654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18198682.9A Withdrawn EP3466867A1 (en) | 2017-10-05 | 2018-10-04 | Rope management apparatus |
Country Status (3)
Country | Link |
---|---|
US (1) | US20190106123A1 (en) |
EP (1) | EP3466867A1 (en) |
GB (1) | GB2568860B8 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2581984B (en) * | 2019-03-06 | 2022-04-27 | Treemagineers Ltd | System and apparatus for moving objects |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2249918A1 (en) * | 1998-10-09 | 2000-04-09 | Enderby Manufacturing Corp. | Self-actuating slack puller |
WO2008118105A1 (en) * | 2007-03-23 | 2008-10-02 | Tajfun Planina Proizvodnja Strojev, D.O.O. | Pulley block |
WO2013180665A1 (en) * | 2012-05-31 | 2013-12-05 | Tajfun Planina Proizvodnja Strojev, D.O.O. | Forestry winch with controlled coiling of a towing cable and preventing the overloading thereof |
EP3159052A1 (en) | 2015-10-23 | 2017-04-26 | Treemagineers Ltd | System and apparatus for moving objects |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6631885B2 (en) * | 2001-10-11 | 2003-10-14 | D. Carl Halas | Arborist limb lowering device and method |
-
2017
- 2017-10-05 GB GB1716220.7A patent/GB2568860B8/en active Active
-
2018
- 2018-10-04 EP EP18198682.9A patent/EP3466867A1/en not_active Withdrawn
- 2018-10-05 US US16/152,647 patent/US20190106123A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2249918A1 (en) * | 1998-10-09 | 2000-04-09 | Enderby Manufacturing Corp. | Self-actuating slack puller |
WO2008118105A1 (en) * | 2007-03-23 | 2008-10-02 | Tajfun Planina Proizvodnja Strojev, D.O.O. | Pulley block |
WO2013180665A1 (en) * | 2012-05-31 | 2013-12-05 | Tajfun Planina Proizvodnja Strojev, D.O.O. | Forestry winch with controlled coiling of a towing cable and preventing the overloading thereof |
EP3159052A1 (en) | 2015-10-23 | 2017-04-26 | Treemagineers Ltd | System and apparatus for moving objects |
Also Published As
Publication number | Publication date |
---|---|
US20190106123A1 (en) | 2019-04-11 |
GB2568860B8 (en) | 2020-07-01 |
GB201716220D0 (en) | 2017-11-22 |
GB2568860A (en) | 2019-06-05 |
GB2568860B (en) | 2020-04-08 |
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