WO2017086860A1 - Dispositif d'enfilage permettant d'enfiler une ligne ou un câble - Google Patents

Dispositif d'enfilage permettant d'enfiler une ligne ou un câble Download PDF

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Publication number
WO2017086860A1
WO2017086860A1 PCT/SE2016/051106 SE2016051106W WO2017086860A1 WO 2017086860 A1 WO2017086860 A1 WO 2017086860A1 SE 2016051106 W SE2016051106 W SE 2016051106W WO 2017086860 A1 WO2017086860 A1 WO 2017086860A1
Authority
WO
WIPO (PCT)
Prior art keywords
arc
shaped element
threading device
cable
threading
Prior art date
Application number
PCT/SE2016/051106
Other languages
English (en)
Inventor
Eric Carlson
Original Assignee
Hook & Moor Ab
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 Hook & Moor Ab filed Critical Hook & Moor Ab
Publication of WO2017086860A1 publication Critical patent/WO2017086860A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0456—Ladders or other supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/04—Fastening or guiding equipment for chains, ropes, hawsers, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/54—Boat-hooks or the like, e.g. hooks detachably mounted to a pole
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables

Definitions

  • the present invention relates to a threading device for threading a line or cable repeatedly past cross members of a cable ladder.
  • the threading device can also be used when threading a mooring line of a boat through a mooring ring.
  • a cable can be pulled passed the cross beams of the cable ladder in an easy way with the user standing on the floor beneath the cable ladder. In this way, a cable can be installed on the cable ladder without having to thread the cable to pass each cross beam.
  • One advantage of the threading device is that the installation operation can be performed from underneath the cable ladder, without having to reach the upper side of the cable ladder.
  • a cable ladder comprises two longitudinal bars or beams interconnected by cross members or rungs arranged at a specific distance, which may be e.g. between 20 - 50 cm depending on the size of the cable ladder.
  • One problem when installing a cable on a cable ladder is that the cable ladder is often positioned high, close to the ceiling or at least above head height of humans.
  • the electrician When installing a cable, the electrician must stand on a ladder or a platform in order to be able to reach the upper side of the cable ladder, where the cable is installed. Cables may be installed one by one but normally, a cable bundle comprising several cables is pulled over the cable ladder by the use of a pulling line. However, the pulling line must first be positioned on the cable ladder, which is time consuming and difficult due to the high position of the cable ladder.
  • a platform or a ladder In order to reach the upper side of the cable ladder, a platform or a ladder must be used. The platform or ladder may be unstable and must be moved constantly in order to reach into the complete cable ladder. The installation of several cables at the same time is normally performed in new installations.
  • a ladder can be used.
  • a ladder may however be unstable and it has to be moved constantly in order to reach the complete cable ladder.
  • the cable ladder is concealed by a dropped ceiling which consists of a gridwork of metal channels holding ceiling tiles or panels. The panels are removed in order to reach the cable ladder.
  • the installation of a cable is difficult since the cable must be threaded past both the cross members of the cable ladder and the grid work of the ceiling. This is often the case when a new communication line or a fibre is to be installed e.g. in an office building.
  • Different threading devices have been proposed, adapted to thread a wire or line through a single ring shaped member. These threading devices are mainly adapted to simplify the mooring of a boat to a buoy or the like, where a single threading action is enough.
  • US 4,560,098 relates to a device suitable for threading a line through a ring member or the like. This solution is adapted for a single threading action in a predetermined direction.
  • DE 10 2006 029 810 A1 discloses a device for threading a line through a ring member or the like. This device is adapted to a single threading action and the device must be moved in two different directions in order to thread a line through a ring member.
  • GB 287,407 and GB 442,857 show further examples of threading devices. Both are rather complicated and require a specific looped line end to function.
  • WO 2009124934 A1 shows a threading device adapted for a single threading action of a line through a mooring ring.
  • An object of the invention is therefore to provide a threading device for repeatedly threading a cable past cross members of a cable ladder.
  • a threading device for threading a line or cable past a cross member of a cable ladder, comprising a housing, a rotatable arc-shaped element suspended in the body and having an opening, and a line or cable holding means arranged to slide on the arc-shaped element, where the arc- shaped element is adapted to assume a first position with the opening in a first direction and a second position with the opening in a second direction, and further comprising transfer means adapted to transfer a movement of a handle to an outer surface of the arc-shaped element in order to rotate the arc-shaped element between the first position and the second position
  • the object of the invention is achieved in that the threading device further comprises a resilient means adapted to return the arc-shaped element to its starting position, and that the resilient means can be set in a first state adapted to return the arc-shaped element to the first position and in a second state adapted to return the arc-shaped element to the second position.
  • a threading device which is adapted for a repeated threading of a cable over a plurality of cross members of a cable ladder.
  • the arc- shaped element is returned to its starting position by a resilient means, which allows a user to repeatedly perform a plurality of threading actions, e.g. when threading a line or cable past a plurality of cross members of a cable ladder. This allows for a time efficient threading of a line or cable, without the need to use a ladder or platform in order to reach above the cable ladder.
  • the resilient means can be set in a first state or in a second state, allowing for a pulling threading action or a pushing threading action.
  • the resilient means can be set in a third state, in which the arc-shaped element is not returned to its starting position.
  • the threading device can be used for a single threading action, e.g. for the mooring of a boat at a mooring ring.
  • a locking means to lock the arc-shaped element in a fixed position, preferably in the first position. In this way, the threading device can be used e.g. as a conventional boat hook.
  • the outer surface of the arc-shaped element is provided with a plurality of teeth.
  • the teeth are adapted to interact with corresponding teeth of a transfer means, which is used to rotate the arc- shaped element from the first position to the second position or from the second position to the first position.
  • the transfer means comprises several balls and a pusher arranged in an endless ball channel. This gives the threading device a smooth operation and provides low friction for the movement of the arc- shaped element.
  • the use of a pusher to move the balls in the ball channel allows for an operation in both directions.
  • the cable is attached to the cable holding means and the cable is then forwarded past the cross members of the cable ladder from below.
  • the transfer means may also be a chain, a toothed drive belt or a roller chain.
  • the pusher is attached to a handle, such that the arc- shaped element is moved between the first position and the second position by pulling or pushing the handle.
  • the length of the threading device can be adapted to the height of the cable ladder.
  • the handle is preferably telescopic and extendable.
  • the resilient means is an elastic band attached to the handle and to at least one slider, where the elastic band runs over at least one pulley.
  • the pusher of the threading device is a toothed wheel driven by a motor.
  • the motor may be controlled by switches operated by the user.
  • the motor can drive the arc-shaped element from one position to the other position and a resilient means can return the arc-shaped element to its starting position. It is also possible that the motor preloads the resilient means and that the arc-shaped element is returned to the starting position by releasing the resilient means by a switch. It is also possible that the motor drives the arc-shaped element from one position to the other position and that the motor also returns the arc-shaped element to its starting position.
  • FIG. 1 shows a first embodiment of a threading device according to the invention with the arc-shaped element in a first position
  • FIG. 2 shows the threading device according to the invention with the arc-shaped element in a second position
  • Fig. 3a shows a side cut view of a threading device according to the invention with the arc-shaped element in a first position
  • Fig. 3b shows a cut view from above of a threading device according to the invention with the arc-shaped element in a first position
  • Fig. 4 shows a cut view of a second embodiment of a threading device according to the invention
  • Fig. 5 shows a schematic view of the use of a threading device when installing a cable on a cable ladder
  • Figs. 6a - 6f show different steps of a threading action when installing a cable on a cable ladder.
  • Figs. 1 to 3 show a first embodiment of the inventive threading device.
  • the threading device 1 comprises a housing 2 having outer side walls. The side walls are parallel and are positioned apart with a predefined distance.
  • the housing 2 comprises a head 16 and an elongated body 17.
  • a circular arc-shaped element 3 is arranged in the head.
  • the arc-shaped element 3 is provided with teeth 6 on the outer surface 14.
  • the toothed arc-shaped element extends out of the body and is part-circular with an opening 4 having an opening angle preferably extending over a range between 60 and 120 degrees.
  • the diameter of the opening in the arc- shaped element is determined on the size of the cross beams of the cable ladder, and is preferably larger than 6 cm.
  • the arc-shaped element is in the shown example provided with a groove 22 which will slide in correspondingly shaped protrusions in the head. In this way, the arc-shaped element can be held in position in the head and will be able to rotate in the head.
  • the arc-shaped element will rotate with the opening facing inwards towards the head, and the rotation of the arc- shaped element is approximately 270 degrees.
  • the arc-shaped element is further provided with a slit 23.
  • a cable holding means 5 extends through the slit 23 and will slide in the slit when the arc-shaped element rotates.
  • the length of the slit preferably corresponds to the amount of rotation of the arc-shaped element, such that the cable holding means can act as end stops of the rotation.
  • the arc-shaped element 3 is adapted to assume a first position 25 with the opening in a first direction and a second position 26 with the opening in a second direction.
  • the outer surface of the arc-shaped element is in the shown example provided with teeth 6 adapted to interact with a transfer means adapted to rotate the arc-shaped element from the first position to the second position or from the second position to the first position.
  • the transfer means may e.g. consist of balls, a chain, a toothed drive belt or a roller chain. It is however important that the transfer means has a relatively long extension such that it can interact with the arc-shaped element through the complete rotation of the arc-shaped element.
  • the angular opening of the arc-shaped element is approximately 90 degrees and the transfer means extend over approximately 120 degrees. In this way, the transfer means will always be in contact with part of the arc-shaped element during a rotation of the arc-shaped element from one position to the other position.
  • balls are used as the transfer means.
  • an endless ball channel 9 is arranged inside the housing 2.
  • a plurality of balls 7 and a pusher 8 are arranged in the endless ball channel.
  • the pusher is adapted to push the balls in a forward or backward direction in the ball channel, depending on the desired rotational direction of the arc-shaped element.
  • the end surfaces of the pusher may be provided with spherical surfaces adjacent the balls such that an end surface resembles part of a ball. This allows the pusher to push the balls in a smooth and reliable way.
  • the pusher 8 extends out of the ball channel with an attachment section 18 adapted to be attached to a handle 10 with e.g. screws.
  • the attachment section runs in a groove in the ball channel and can move in a longitudinal direction along the elongated body 17.
  • the pusher can move between a forward end position 20 and a rearward end position 21.
  • the distance between the forward end position 20 and the rearward end position 21 preferably corresponds to the amount of rotation of the arc- shaped element, such that the pusher can act as an end stop for the rotation of the arc-shaped element.
  • the length of the body is preferably matched to the distance between the forward end position 20 and the rearward end position 21 .
  • the ball channel is filled with balls apart from the pusher.
  • the toothed outer surface of the arc-shaped element 3 extends into part of the ball channel in the head of the threading device.
  • the attachment section 24 of the pusher 8 is fixedly attached to a handle 10, e.g. by screws or rivets. In this way, the pusher can be moved by pulling or pushing the handle.
  • the pusher In the example shown in Fig. 1 , the pusher is in the forward end position 20, i.e. in the inner position, and the arc- shaped element 3 is in the first position 25. In this position, the inner end of the handle 10 is also at the end position 20.
  • the pusher and the handle will move away from the head of the threading device, towards the rearward end position 21.
  • the balls will rotate the arc-shaped element counter-clockwise from the first position 25 to the second position 26, as shown in Fig. 2.
  • the pusher and the handle By pushing the handle from this extended position, the pusher and the handle will return to the forward end position 20 and the arc-shaped element will return to the first position 25, i.e. the starting position, with a clockwise rotation.
  • the shown threading device is provided with a resilient means 1 1 which is adapted to return the arc-shaped element to the starting position.
  • the resilient means is an elastic band which runs over a front pulley 12 and a rear pulley 13.
  • One end of the elastic band is attached to a first slider 18 and the other end of the elastic band is attached to a second slider 19.
  • the first slider 18 is positioned in the forward end position 20 and is attached to the handle 10, close to the position of the attachment section 24.
  • the second slider 19 is positioned at the rearward end position 21 and bears at the body.
  • the elastic band will run from the second slider 19, over the rear pulley 13, over the front pulley 12 to the first slider 18 which is attached to the handle.
  • the elastic band By pulling the handle, the elastic band is extended at the same time as the arc-shaped element is moved from the first position to the second position.
  • the elastic band When the handle is fully extended, such that the inner end of the handle, the pusher and the first slider is in the rearward end position, the elastic band has been extended by approximately twice its length. This position is shown with dashed lines in Fig. 3b.
  • the inner surface of the arc-shaped element When a cable is threaded over a cross member of a cable ladder, the inner surface of the arc-shaped element will bear on a cross beam of a cable ladder. In this way, the inner surface will slide and rotate on the cross beam, which at the same time will provide the reaction force to the pulling force of the handle when the handle is pulled. In this way, the threading device can be operated with one hand.
  • the elastic band When the arc-shaped element is in the second position and the arc-shaped element is released from the cross beam, the elastic band will pull the handle back to the starting position, i.e. to the inner position, and the arc-shaped element will at the same time return to the first position, i.e. to the starting position.
  • the cable has now passed the cross member and the threading device is ready to thread the cable passed another cross member.
  • the second slider 19 is in the shown example positioned at the rearward end position 21 .
  • the second slider 19 may also be attached to the inner end of the handle when the inner end of the handle and the pusher are positioned at the rearward end position, with the arc-shaped element in the second position 26.
  • the first slider will be positioned at the forward end position 20.
  • the elastic band will in this case run from the second slider 19, over the rear pulley 13, over the front pulley 12 to the first slider 18. In this way, the starting position of the pusher will be the rearward end position 21 .
  • the pusher By pushing the handle inwards, the pusher will move from the rearward end position to the forward end position and the arc-shaped element will move from the second position to the first position.
  • the threading device is preferably provided with a pin or the like that will allow a user to select which slider that is to be attached to the handle. In this way, the user can decide which type of action that the threading device should be operated with.
  • the resilient means can also be set in a third state in which the arc- shaped element is not returned to its starting position. This may be done by releasing the resilient means from the handle, e.g. by leaving both the first slider and the second slider unattached to the handle. In this way, the threading device can be used for a single threading action, e.g. for the mooring of a boat at a mooring ring. It is also possible to use a locking means, e.g. a releasable button, a pin or the like, to lock the arc-shaped element in a fixed position, preferably in the first position. The locking means may act directly on the arc-shaped element, directly on the handle or may block the transfer means. In this way, the threading device can be used e.g. as a conventional boat hook.
  • a locking means e.g. a releasable button, a pin or the like
  • a coil spring may be arranged inside the handle, e.g. between the rear part of the body and a position at the rear end of an elongated handle. Depending on where in the handle the rear end of the coil spring is attached, a pulling force or a pushing force can be provided by the coil spring. When a coil spring is used, it may be preferred to elongate the body somewhat in order to provide a relatively uniform spring force from the coil spring.
  • the housing is preferably made from a reinforced plastic, such as a fibre reinforced polyamide.
  • the arc-shaped element is preferably manufactured from a strong and rigid material. It can be cast or machined from a metal or may also be made from a reinforced plastic, such as a fibre reinforced polyamide.
  • the pusher of the threading device is a toothed wheel 31 driven by a motor 30.
  • the toothed wheel is positioned in the endless ball channel, which in this example is much shorter than in the embodiment described above.
  • the toothed wheel 31 will be rotated by the motor such that the balls are moved in a forward or rearward direction. The balls will rotate the arc-shaped element from one position to another position.
  • the motor is preferably positioned perpendicular to the toothed wheel in order to fit in a handle, which means that the toothed wheel preferably is driven through a worm drive comprising a worm and a worm gear. In this way, the rotational speed of the motor will also be reduced and the torque of the motor will be increased.
  • the motor may be controlled by switches 33 operated by the user.
  • the motor can drive the arc-shaped element from the first position to the second position by e.g. activating a forward switch, and drive the arc- shaped element from the second position to the first position by activating a backward switch. It is also possible that the motor drives the arc- shaped element from the first position to the second position and that a resilient means returns the arc-shaped element to its starting position.
  • the resilient means may in this case be a clock spring arranged at the toothed wheel.
  • the motor may also preload the resilient means such that the resilient means will drive the arc-shaped element from the first position to the second position by releasing a catch, and the motor will then return the arc-shaped element to its starting position.
  • the motor is preferably powered by rechargeable batteries 32, which may be built in or may be exchangeable.
  • Fig. 5 and 6a - 6f demonstrates the installation of a cable on a cable ladder by using the inventive threading device.
  • the cable ladder 40 comprises a plurality of cross members or rungs 41 . Since the cable should be installed on top of the cable ladder, the cable must be threaded over each cross member. The end of the cable is attached to the cable holding means in a secure way.
  • the threading device is then placed at the first cross member with the inner surface of the arc-shaped element resting on the cross member, with the arc-shaped element in the first position, as shown in Fig. 6a and 6f.
  • the threading device is pulled by the handle which causes the arc-shaped element to rotate from the first position to the second position, see Figs 6b - 6d.
  • the handle By pulling the handle, the handle extends outwards and extends the resilient member.
  • the end of the cable will now be on the other side of the cross member and the threading device can be released from the cross member and can be moved to the next cross member.
  • the arc-shaped element is returned to the first position by the resilient means, and the handle is returned to its inner position, as seen in Fig. 6e.
  • the threading device is now ready to thread the cable over the next cross member.
  • the inner surface of the arc-shaped element is again placed bearing on the cross member and the handle is pulled.
  • the end of the cable will now pass the cross member and the process can be repeated until the cable end has passed all cross members.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)

Abstract

L'invention concerne un dispositif d'enfilage (1) permettant d'enfiler une ligne ou un câble pour passer une traverse d'une échelle à câbles, comprenant une enveloppe (2), un élément rotatif en forme d'arc (3) suspendu dans le corps et comportant une ouverture (4), et un moyen de maintien de ligne ou de câble (5) agencé pour coulisser sur l'élément en forme d'arc, où l'élément en forme d'arc est conçu pour adopter une première position (25) lors de l'ouverture dans une première direction et une deuxième position (26) lors de l'ouverture dans une deuxième direction, et où un moyen de transfert (7) est conçu pour transférer un mouvement d'une poignée (10) à l'élément en forme d'arc (3) afin de faire tourner l'élément en forme d'arc entre la première position (25) et la deuxième position (26), et où un élément élastique (11) est conçu pour renvoyer l'élément en forme d'arc (3) à sa position de départ, et où l'élément élastique (11) peut être configuré dans un premier état dans lequel l'élément en forme d'arc (3) est renvoyé à la première position (25) et dans un deuxième état dans lequel l'élément en forme d'arc (3) est renvoyé à la deuxième position (26). L'avantage de l'invention est d'obtenir un dispositif d'enfilage qui peut enfiler répétitivement un câble pour passer une traverse, ce qui permet une installation améliorée de câbles sur une échelle à câbles.
PCT/SE2016/051106 2015-11-20 2016-11-10 Dispositif d'enfilage permettant d'enfiler une ligne ou un câble WO2017086860A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1551504A SE539401C2 (en) 2015-11-20 2015-11-20 Threading device for threading a line or a cable
SE1551504-2 2015-11-20

Publications (1)

Publication Number Publication Date
WO2017086860A1 true WO2017086860A1 (fr) 2017-05-26

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PCT/SE2016/051106 WO2017086860A1 (fr) 2015-11-20 2016-11-10 Dispositif d'enfilage permettant d'enfiler une ligne ou un câble

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SE (1) SE539401C2 (fr)
WO (1) WO2017086860A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021175624A1 (fr) * 2020-03-06 2021-09-10 Svitzer A/S Dispositif d'amarrage, système d'amarrage et navire

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4560098A (en) * 1982-11-09 1985-12-24 Latchways Limited Threading device
GB2206554A (en) * 1987-06-30 1989-01-11 Alan William Tupper Threading and hoisting devices and systems
DE102006029810A1 (de) * 2006-06-28 2008-01-03 Dietmar Simsheuser Vorrichtung zum Führen einer Leine um einen Ring
WO2009132432A1 (fr) * 2008-04-27 2009-11-05 Leon Keith Jantzen Outil télécommandé de passage de corde
WO2015135038A1 (fr) * 2014-03-12 2015-09-17 Winielsen Pty Ltd Attache et dispositif d'installation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4560098A (en) * 1982-11-09 1985-12-24 Latchways Limited Threading device
GB2206554A (en) * 1987-06-30 1989-01-11 Alan William Tupper Threading and hoisting devices and systems
DE102006029810A1 (de) * 2006-06-28 2008-01-03 Dietmar Simsheuser Vorrichtung zum Führen einer Leine um einen Ring
WO2009132432A1 (fr) * 2008-04-27 2009-11-05 Leon Keith Jantzen Outil télécommandé de passage de corde
WO2015135038A1 (fr) * 2014-03-12 2015-09-17 Winielsen Pty Ltd Attache et dispositif d'installation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021175624A1 (fr) * 2020-03-06 2021-09-10 Svitzer A/S Dispositif d'amarrage, système d'amarrage et navire

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SE539401C2 (en) 2017-09-12
SE1551504A1 (en) 2017-05-21

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