WO2019177480A1 - Procédure et dispositif pour la manipulation par une corde d'un équipement difficile à approcher - Google Patents

Procédure et dispositif pour la manipulation par une corde d'un équipement difficile à approcher Download PDF

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Publication number
WO2019177480A1
WO2019177480A1 PCT/RS2019/000011 RS2019000011W WO2019177480A1 WO 2019177480 A1 WO2019177480 A1 WO 2019177480A1 RS 2019000011 W RS2019000011 W RS 2019000011W WO 2019177480 A1 WO2019177480 A1 WO 2019177480A1
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WO
WIPO (PCT)
Prior art keywords
rope
interlock
hanging object
manipulation
stick
Prior art date
Application number
PCT/RS2019/000011
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English (en)
Inventor
Milun RADIVOJEVIC
Original Assignee
Radivojevic Milun
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 Radivojevic Milun filed Critical Radivojevic Milun
Publication of WO2019177480A1 publication Critical patent/WO2019177480A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/36—Hoisting or lowering devices, e.g. for maintenance
    • F21V21/38—Hoisting or lowering devices, e.g. for maintenance with a cable

Definitions

  • a technical problem that is solved by the concerned procedure and device is detachment and attachment of the equipment mounted in hard to access areas only by a rope.
  • the other problem that is solved by this procedure and device is the manipulation with the equipment that is mounted at the same heights in a row, such as public streetlight lamps or indoor halls lighting, whereby implementing this procedure a stick with a rope is moved from one lamp to the other without folding the stick.
  • This solution helps to overcome the problem of manipulation with equipment that has complicated configuration and large span (joists or constructions that require three or more points of hanging), using two or more devices while accessing all devices carrying the equipment from one position.
  • bringing down of the pillars to the level accessible to the operator is applied.
  • the pillars are brought down so that the rotation axis is in the pillar base, and sometimes the rotation axis is at approximately half of the pillar’s height.
  • a procedure and device are used for easier access to and manipulation with an equipment (a hanging object) that needs to be mounted in places so hard to access that their mounting, maintaining, cleaning or replacement would require scaffolding, ladders, a truck mounted crane or even hiring a professional with alpinist skills.
  • the equipment has to be mounted in the zones inaccessible for humans due to toxicity or temperature.
  • the device consists of three basic parts necessary for its functioning:
  • the fixed part does not necessarily need to exist as a separate part but it can be carried out as a specially shaped supporting construction by perforation of a pillar or joist on which the hanging object is planned to be attached,
  • the following elements are not necessary for the basic functioning of the device, however they significantly contribute to its functionality, safety and reliability, such as: a stick, a brake, a safety guard against uncontrolled unlatching of the bolt, a device lid and a manual or motorized rope winch.
  • a doubled rope assures that the hanging object is precisely placed in a desired position.
  • the devices can operate using gravitational force to lower the hanging object and, in this case, the operator must stand at a level lower than that of the hanging object, however he does not need to stand right underneath the device but he can be standing quite away from the side of the device. If the operator is at the level higher than the hanging object and the device cannot use the gravitational force, he must be equipped with an additional interlock and simulate the gravitational force with the other rope.
  • the doubled rope can be used as a support for the hanging object to slide along when being lowered or lifted to be brought straight in front of the operator.
  • Components of the mobile part of the device also use gravitational force, as it reduces the number of components of the device and probability of failures of the device.
  • the device can also be carried out by using springs or other technical solutions to achieve the same effect given by the gravitational force.
  • the device is accessed by a rope from the direction that is nearly at a 90 degree angle relative to the longitudinal axis of the interlock.
  • the procedure and device are conceived in such manner that the fixed part of the device, that is already mounted on the structure, does not further need immediate physical access during the entire time of the exploitation life of the equipment, and the mobile part is accessed from the distance with the rope and stick (and finally drone and the like).
  • the fixed part of the device that is already mounted on the structure, does not further need immediate physical access during the entire time of the exploitation life of the equipment, and the mobile part is accessed from the distance with the rope and stick (and finally drone and the like).
  • the device is simple and can be made of easily available and eco-friendly materials.
  • the procedure of manipulation with the device can be divided into three procedures as follows:
  • B) lowering of the hanging object for the intervention and returning it to the original position consists of putting the rope on the interlock, loosening of the rope and lowering the fixed part together with the hanging object to a position predefined by the brake, and then after the intervention of pulling through the rope is done, lifting and fastening of the mobile part of the device, together with the hanging object, to the fixed part of the device, C) complete dismantling of the mobile part together with the hanging object consisting of putting the rope on the interlock, loosening of the rope and lowering of the mobile part of the device together with the hanging object to the ground, detachment of the rope from the mobile part and removing the rope.
  • FIGURE 1 (FIGURE la and FIGURE lb): A view of the basic model of the device including a detail of the safety guard against uncontrolled unlatching of the bolt.
  • FIGURE 2 A view of Variant I of the device for vertical mounting (on a wall),
  • FIGURE 3 A view of Variant I of the device for horizontal mounting (on a ceiling),
  • FIGURE 4 A view of Variant II of the device for vertical mounting (on a wall),
  • FIGURE 5 A view of Variant II of the device for horizontal mounting (on a ceiling),
  • FIGURE 6 A view of Variant III of the device for vertical mounting (on a wall),
  • FIGURE 7 A view of Variant III of the device for horizontal mounting (on a ceiling),
  • FIGURE 8 (FIGURE 8a to FIGURE 8h) Lowering of the hanging object for Variant III of the device for vertical mounting in 8 stages
  • FIGURE 9 (FIGURE 9a to FIGURE 9f) Lowering of the hanging object for Variant III for horizontal mounting in 5 stages
  • FIGURE 10 (FIGURE 10a to FIGURE lOe) Lifting of the hanging object for Variant III for horizontal mounting in 5 stages,
  • FIGURE 11 (FIGURE 11a to FIGURE lib) Figure of the brake position before lowering of the hanging object starts and at the end of lowering of the hanging object,
  • FIGURE 12 (FIGURE 12a to FIGURE 12b) Replacing of the light rope with a heavy rope, initial stage and final stage,
  • FIGURE 13 (FIGURE 13a to FIGURE 13b) Figure of the lid, in open and closed position, side view, FIGURE 14: View of the guideways perfonned as a perforation in the fixed part of the device, orthogonal projection,
  • FIGURE 15 (FIGURE 15a to FIGURE 151) Placing of the rope in guideways in 6 stages, horizontal mounting,
  • FIGURE 16 (FIGURE 16a to FIGURE 16f) Putting of the rope on a hook in 6 stages when the interlock is “behind” the fixed part of the device,
  • FIGURE 17 (FIGURE 17a to FIGURE 171) Putting of the rope on a hook in 6 stages when the interlock is “in front of’ the fixed part of the device,
  • FIGURE 18 (FIGURE 18a and FIGURE 18b) View of manipulation when the rope is used as a support to the hanging object in two stages, when the interlock is“in front of’ the fixed part of the device,
  • FIGURE 19 (FIGURE 19a and FIGURE 19b) View of manipulation when the rope is used as a support to the hanging object in two stages, when the interlock is“behind” the fixed part of the device, without additional support,
  • FIGURE 20 View of manipulation when the rope is used as a support to the hanging object when the interlock is“behind” the fixed part of the device, with additional support,
  • FIGURE 21 View of manipulation when the equipment is at a lower level than the operator.
  • FIGURE 1 Description of the device In each of the variants, the device consists of three basic parts (FIGURE 1):
  • a mobile part 2 consisted of: a supporting element 10, a slide bolt 4 and an interlock 3.
  • the supporting element 10 carries the slide bolt 4.
  • a strip 11 connects the supporting element 10 with a hanging object 8 and the interlock 3,
  • FIGURE 1 shows a basic model of the device on which, among others, all the above-mentioned basic elements of the device can be observed.
  • the device for the mounting on the ceiling is shown (supporting construction 9).
  • the rope 6 is used for the manipulation with the hanging object 8 and mobile part 2.
  • Putting on and detaching of the rope 6 from the interlock 3 is carried out by a rope bracket 15 placed on the top of a stick 5 managed by the operator as described further in the text, shown in the FIGURE 17.
  • FIGURE la shows the situation when the rope 6 is already put on the interlock 3.
  • the operator holds the rope 6 tightened.
  • a rope 80 connects one end of the interlock 3 and the safety guard 25.
  • the tightened rope 6 has pulled the rope 80 to the interlock 3.
  • Pulling of the rope 80 rotates the safety guard against uncontrolled unlatching of the bolt 25 and it is lifted and enters the dent 81 in the slide bolt 4.
  • the slide bolt 4 is therewith released for unbolting.
  • FIGURE lb shows, in dotted lines, the safety guard in the dent 81 in a position 25a. It is the position in which the unlatching of the slide bolt 4 is possible, since the rope 80, which passes through a groove 79 in the slide bolt 4, is tightened towards the interlock 3.
  • the next step in this procedure of detachment of the hanging object 8 is that the operator is using the hook 30 on the stick 5 to pull the lever of the bolt 43 and it rotates around the bracket 10 pulling out of the bolt slots 19 and releases from the pressure and contact with the mobile part 1.
  • the operator eases up the tension of the rope 6 and under the weight of the hanging object 8 everything attached to the interlock 3 under gravity starts lowering to the operator.
  • the stick 5 can be put aside.
  • This manipulation can also be carried out without the hook 30 for unbolting of the slide bolt 4 in such a way that the operator puts the rope 6 both at the bolt lever 43 and the interlock 3 at the same time (in FIGURE 1 the rope 6 between the lever 43 and the interlock 3 is shown in dotted lines), so pulling the rope 6 first tightens the rope 80 as its tightening and rotation of the safety guard 25 to the position 25a requires a very small force.
  • the slide bolt 4, released from the blockage of the safety guard 25, is rotated and unlatched.
  • the hanging object 8 starts lowering by its own weight, and the rope 6 in a certain position of the slide bolt 4 is removed from the bolt lever 43 and switched only to the interlock 3. When switched, the hanging object 8 falls through a little. None hinders further lowering.
  • Lifting (raising) of the hanging object 8 is carried out when the operator pulls in the rope 6.
  • the mobile part 2, thanks to the shape of the interlock 3, the supporting element 10 and the strip 11, is without option to hook itself, thanks to the guideways 17, it is precisely entered onto the starting position.
  • the slide bolt 4 with its own weight falls into the slots on the bolt 19 and therewith the device is bolted and the hanging object 8 remains attached to the ceiling.
  • the device can be used for the mounting on both vertical surfaces (walls, pillars%) and horizontal surfaces (ceiling, joist%), and it can also be adjusted to the mounting under any other angle between the two final positions.
  • the description mostly relates to the situation when the device is located at the level higher than the position of the operator, however with the help of an additional hook 70 it can be used for positions lower than that of the operator, where gravitational force must be simulated by the other rope 71, as shown in FIGURE 21.
  • the interlock 3 (FIGURE 1) is a part which creates contact between the mobile part of the device 2 and the rope 6, and it is supposed to secure safe attachment of the rope 6 during the entire time of the manipulation without the risk of being disconnected due to some jouncing or unwanted hooking to the construction.
  • This patent presents the interlock 3 of a cylindrical shape bound to the supporting element 10 and the hanging object 8 with the flexible strip 1 1.
  • the width of the strip 11 should suffice for it to smoothly slide over the guideways 17 and other elements of the fixed part 1.
  • the supporting element 10 and the hanging object 8 instead of the strip two ropes can be used, however such connection is weaker.
  • the strip 11 is tied to the central part of the roller shield.
  • the width of the strip at the attachment point with the interlock 3 is equal to the distance between the guideways 17 which secures that the rope 6 goes through the guideways 17.
  • the length of the interlock 3 is greater than the width of the strip 11, so that towards the ends of the roller, free parts of the roller are big enough for the rope 6 to be put over them. Loose ends of the interlock 3 remove the risk of the rope 6 being disconnected even at the small bevels of the interlock 3.
  • the cylindrical shape of the interlock 3 reduces the possibility for the rope 6 to attach to the interlock 3 when putting and removing the rope 6.
  • the rope 6 when put and tightened with the strip 11 looks like and behaves similar to the once doubled rope in continuity.
  • a brake 7 can be mounted on the rope 6 that is, in fact, a piece of solid material shaped and affixed to the rope 6 that, when loosening the rope 6, the brake 7 is brought to the entrance hole 14 of the fixed part 1 of the device, and then due to its dimensions that are bigger than the hole 14, it cannot go through and therefore blocks further movement of both the rope 6 and the mobile part 2 as well as the hanging object 8 in that direction.
  • a practical solution that the brake 7 be in a shape of a roller, the same shape and manner of attachment to the rope 6 as the interlock 3 is.
  • the brake 7 is attached to the rope 6 so that it does not hinder bypassing the hanging object 8, as shown in the FIGURE 1 and FIGURE 19.
  • the rope 6 can be attached to the interlock 3 in several ways, at low heights it can be done even with the hand tools, and at very high heights a drone or any other way that the user may find appropriate may be used.
  • This description shows the use of the stick 5 with the rope bracket 15 as a way of manipulation that is most widely applied.
  • the stick 5 can be of any cross section, telescopic or not, however it must be light and rigid enough for the operator to be able to precisely and without much effort easily lead the rope 6 through the slots 18 and holes 13 and 14 of the fixed part 1 of the device.
  • FIGURE 16 shows, in stages, putting of the rope 6 onto the interlock 3 when the interlock is“behind” the mobile part 2.
  • FIGURE 17 shows in stages, putting of the rope 6 onto the interlock 3 when the interlock is“in front of’ the mobile part 2.
  • the figure gives an overview how it is done. It is indicated with arrows in each figure in which direction the stick 5 should be moved to reach the position given in the next figure. What requires attention is that when the interlock 3 goes though the fixed part 1 of the device the rope 6 should always be in contact with the fixed part 1.
  • the rope bracket 15 is a light construction (it can be wired) that is installed on the top of the stick 5, and it can be rotated in relation to the points of contact with the stick 5 and thus be adjusted to the position of the operator in relation to the device, rotation direction as indicated in FIGURE la.
  • the grooves 31 and 44 prevents slightly tightened rope 6 from getting off the bracket 15.
  • part of the bracket 15 between the grooves 44 and 31 must be of an adequate size to provide smooth attachment and detachment of the rope 6 from the interlock 3, whereas part of the rope bracket 15 from the grooves 44 to the stick 5 must have the width and shape that fits the width of the slot 18 and enables precise guiding of the bracket 15 through the slot 18 for the needs of the first guiding of the rope 6 through the fixed part 1 of the device and placing in the guideways 17. How the support looks like can be seen in several figures of which the most detailed one is the FIGURE la.
  • the rope 6 put on the interlock 3 by the operator is enough to do all the required manipulations if the hanging object 8 is light.
  • the rope 6 should be light, flexible, non-stretchable, and of course strong enough to withstand the total weight hung on it.
  • Material that these ropes can be made of is any material that fulfills the above mentioned criteria: from nylon used for fishing lines, thin metal cords to ropes made of natural or synthetic fibers.
  • the procedure is as follows: at one end of the light rope 6 that is already attached on the interlock 3 the operator attaches the stronger rope 16 by means of a coupling 63, making a smooth transition between the two ropes. It is best that the coupling 63 be shaped as a truncated cone, as shown in FIGURE 12. Then the other free end of the light rope 6 is pulled and thus lifts the stronger rope 16 that, following the light rope 6, is put on the interlock 3. Finally, when the stronger rope 16 is pulled towards the operator it fully replaces the light rope 6, both in its place and role.
  • the interlock 3 remains in its position, which can be achieved either with the sufficient weight of the interlock 3 or by shape of the carrier of the interlock 3 in which it is protected from movement. Or simply another light rope 6 can be put on the interlock 3 that the operator holds tight and protects the interlock from displacement during the manipulation of replacement of the light rope 6 with the heavy rope 16.
  • the rope 6 can be used as a support to hanging object 8, as shown in FIGURES 18, 19 and 20. This is particularly useful in case of manipulation with equipment that cannot be accessed vertically from beneath, such as the lighting fixtures above swimming pools.
  • the hanging object 8 in some cases must be added special supports 12 (shown in the FIGURES la, 18 and 20) wherewith the hanging object would lean on the rope of the operator.
  • the device lid 73 can be mounted on the mobile part 2 of the device as shown in FIGURE 13. The shape of the lid 73 should be adjusted to the concrete needs.
  • the components that can be recognized on the lid are as follows: a hinge 74 that connects it to the mobile part 2 of the device and around which the lid 73 can have limited rotation; and a hook support 75 that the hook 30 rests upon, which serves to the operator to, by pulling the hook 30, open the lid by bending the elastic tab 76 and pulling it out of the strike plate 77.
  • the strike plate is actually a groove in which the tab 76 enters, as shown in FIGURE 13a. Inversely, when the lid closes, the operator pushes the lid 73 until the elastic tab enters the strike plate 77, as shown in FIGURE l3b.
  • the practical role is to prevent birds and insects from entering, and it can also provide good IP protection (against rain and dirt).
  • IP protection againstst rain and dirt.
  • the advantage of mounting the lid 73 on the mobile part 2 is the possibility that it is fixed or replaced when lowered together with the hanging object.
  • the fixed part 1 of the device consists of the following elements described in the text below:
  • FIGURES 2, 3, 4 and 5 a slot 18, spanning from the entry hole 14 to the exit hole 13, serving for the conduction of the stick 5 with the rope bracket 15 and the rope 6 used for the first hanging of the mobile part 2 to the fixed part 1 or in case it had to be demounted for some reason and then mounted again.
  • the slot 18, at the entry of the hole 14, is widened and rounded so that it would be easier for the stick 5 to be conducted into the slot 18. See FIGURES 2, 3, 4 and 5.
  • the attaching is carried out by the operator manually, and in others automatically,
  • the rope guideways 17, over which the interlock 3 passes consists of two semi-circular or semi-elliptical elements 72 connected to the base with their cross sectional part, at a distance between them approximate to the thickness of the rope 6, which enables precise guiding of the rope 6. In the upper part, these elements 72 are moved apart which makes the first conduction of the rope 6 easier. For this manipulation to be precise the already mentioned shape of the rope support 15 is important. Roundness of the guideway 17 elements enables traversing of the interlock 3 over the guideway 17 without major resistance.
  • the guideway 17, carried out as a perforation of the fixed part 1, is shown in three orthogonal projections in the FIGURE 14.
  • at least two guideways 17 need to exist along one strand of the doubled rope 6, because when the interlock 3 comes along one guideway 17 the rope 6 will be lifted and removed from that guideway 17, however it will still be in the other guideway 17 so that the movement of the rope is always controlled.
  • the space between the entry hole 14 and the exit hole 13 is large it is useful to have even three or more guideways 17 for the better guidance control of the rope 6,
  • a safety stop 46 in case of the falling out of the rope from the guideway 17, prevents the falling out of the rope 6 through the slot 18 and the uncontrolled falling of the hanging object 8.
  • This safety stop is placed at the edges of the slot 18. Shape and size of the stop 46 is the same as one strand of the guideway 17, and it is placed at a sharp angle in relation to the base to which it is attached. The stop 46 is shown in FIGURES 2 and
  • this device (same as devices described in the patents US2798680, US5105349 A, US20080037264 Al, US6634901 B2...), enables that the hanging object 8 is supplied by electrical energy via electrical contacts 24 placed on the end stops 21. This is enabled by using doubled rope and strip that put the hanging object 8 precisely in a predefined position. Also, the manipulation with the electrical hanging object 8 is safe because when suspended, the hanging object 8 is automatically detached from the voltage. In FIGURE 3, the manner of setting up electrical contacts can be seen. The conductors 64 conduct the electricity to the contacts 24 of the fixed part 1, whereas the conductors 65 conduct the electricity from the contacts 24 to the electrical hanging object 8.
  • FIGURE 2 shows a view of the vertical surface (wall) mounting device
  • FIGURE 3 shows a view of the horizontal surface (ceiling) mounting device.
  • the device in this variant is the simplest in its construction, however it is the most robust one.
  • This variant requires an additional engagement of the operator to perform locking of the slide bolt 4, from the distance (by a hook 30 on a stick or rope), which prolongs the procedure insignificantly, however it makes a very firm connection of the hanging object 8 to the base that could be compared to the screw connection, protected from an incidental detachment by safety guards against uncontrolled unlatching of the bolt 25. Without safety means, the detachment could be caused by vibrations, an earthquake and the like.
  • This variant does not comprise rotating elements.
  • the fixed part 1 of the device also in this variant does not have to be a separate element but it could be carried out as a perforation of the supporting construction 9 as shown in FIGURES 2 and 3.
  • FIGURE 2 shows a solution where the interlock 3 is attached“behind” the mobile part 2 of the device and hanging object 8, which is mostly a more practical solution.
  • FIGURES 2 and 3 show differences in carrying out of elements when the device is mounted on a wall or a ceiling, thereby the differences in details of operation and manipulation.
  • the slot 18, that spans from the entry hole 14 to the exit hole 13; then the entry hole 14 accessed by the rope 6 and where the interlock 3 is placed; then the exit hole 13 through which the interlock 3 passes when leaving the fixed part 1; then the bolt slot 19 in which the slide bolt 4 is inserted, which can be carried out as a perforation shown in FIGURE 2 or as the bolt support 20 shown in FIGURE 3; rope guideways 17 that can be carried out by perforation; and the stop 46 preventing the rope 6 from falling through the slot 18.
  • the stops 21 ensure precise position of the slide bolt 4 necessary for proper latching.
  • the stop 23 is also needed as, although the safety guard against uncontrolled unlatching of the bolt 25 prevents unlatching, a possibility that the whole mobile part 2 is removed from the fixed part 1 of the device by pulling the hook 27 to the side is not prevented.
  • the mobile part 2 consists of the basic elements as follows: the supporting element 10, slide bolt 4 and interlock 3.
  • the supporting element 10 carries the hanging object 8, slide bolt 4 and safety guard against uncontrolled unlatching of the bolt 25.
  • the stops 83 prevent the supporting element 10 from uncontrolled movement in relation to the safety guard 25.
  • the latching interlock 26 and unlatching interlock 27 should also be noticed, as well as latching - unlatching ropes 28, latching - unlatching rope supports, then the strip 11 that connects the interlock 3 and supporting element 10.
  • Unlatching interlock 27 and latching interlock 26 are shaped as the Latin letter“V” which ensures equal tension forces on both ropes 28 when pulled.
  • interlocks 26 and 27 have the same shape as .the interlock 3 which enables that it is pulled not only by the hook 30, but also with the other light rope 6. Pulling by the rope is needed during manipulation with a massive device where the necessary pulling force cannot be accomplished by a thin and light rope.
  • Further process includes loosening of the rope 6 and lowering of the hanging object 8.
  • the operator pulls in the rope 6 and brings the mobile part 2 to the final position allowed by the stops 21, said position being when the slide bolt 4 is next to the bolt hole 19 (or bolt support 20).
  • the operator holds that position by tightening the rope 6 (by braking the winding winch 45 or the operator manually holds the rope 6 tight).
  • FIGURE 4 shows a view of the vertical surface (wall) mounting device
  • FIGURE 5 shows a view of the horizontal surface (ceiling) mounting device.
  • Variant II is primarily intended for the hanging of objects in places without surveillance in which the equipment would be exposed to unauthorized estrangement because it can be easily disinstalled.
  • This variant differs from the basic variant and Variant I in it that the latching of the slide bolt 4 is done with the cylindrical lock 32 and the key 33 placed on top of the stick 5.
  • the mobile part 1 of the device consists of the interlock 3, strip 11 and supporting element 10, the difference being in the method in which the latching is done and in parts that enable it. Latching and unlatching is done from the distance with the key 33 installed on top of the stick 5.
  • a key guide 34 is used for access with the key 33 to the keyhole 35 on the cylindrical lock 32 .
  • the key guide 34 is, in fact, a wrap of a truncated pyramid of big enough the base that the operator is able to enter the key 33 inside it from the distance with the stick.
  • a joist 39 around which the whole locking mechanism can rotate in a limited rotation (up to 90 degrees), and it is made of: the mechanism support 67, the cylinder 32, the key guide 34, the cam 36 and the paddle 37.
  • the arrow 66 shows the direction of rotation around a horizontal axis.
  • the two plates 38 that are mutually firmly connected with a connection 38a and carrying the slide bolt 4 can move translationally on the same joist 39.
  • the plates 38 move by two paddles 37 affixed to the cam 36.
  • the key guide 33 is affixed to the cam 36.
  • a mobile plate 40 with the bolt support 20 can be used (FIGURE 4).
  • the mobile plate 40 carries bolt supports 20 on it, affixed to the strip 11 in one line 41 transversally to the strip 11, so that during the manipulation it can easily go across the bends 42.
  • the non-extensible strip 11 of precisely dimensioned length must be used, and the latching is to be done in the position when the strip 11 is tightened to the maximum. Under such conditions the hanging object 8 will entirely adhere to the fixed part 2.
  • This solution shows that the bolt supports 20, which can be deformed by the forces that are exerted upon them, do not need to be at the remote fixed part 1 of the device. This type of solution is also possible for other variants described in this patent.
  • the device in this variant functions similarly as in the Variant I.
  • the difference is the method of latching and unlatching, which is done in the following way: while the operator holds the rope 6 tight, with the other hand (or other operator) with the stick 5 he inserts the key 33 into the key guide 34 shaped as the truncated pyramid and guides the key 33 straight to the keyhole 35 on the cylinder 32.
  • the key 33 By turning the key 33 the entire assembly is turned, made of the key guide 34 connected to the cam 36 that has 2 paddles 37 on itself mutually moved by 90 degrees.
  • By turning the cylinder by 90 degrees the paddles 37 push the two plates 38 mutually connected by the connection 38a sliding along the joist 39.
  • the slide bolt 4 comes across the supports 20 and performs the latching, and in the opposite direction the unlatching of the slide bolt 4.
  • a mutual distance between the plates 38 should be greater than the semi-diameter of the paddles 37 multiplied by 1,41, and smaller than two semi-diameter of the paddles 37.
  • the entire locking mechanism, made of the cylinder 32, key guide 34, cam 36 and paddles 37, is attached to the joist 39 and can, to a limited extent (up to 90 degrees) rotate around its longitudinal axis. Thanks to the wide surface of the plates 38, the forces from the paddles 37 can be transferred to the plates 38, accessing the device by the stick 5 from different angles.
  • the described mechanism with the cylindrical lock and key 33 on the stick 5 can be used for the locking of any equipment installed in a remote place, even unrelated to the device described in the patent herein. If the point of access to the device is defined in advance neither the plates 38, the paddles 37 nor rotation around the joist 39 are needed, so the whole mechanism with cylinder could be significantly simplified.
  • This variant represents a simple and, above all, a compact solution in which all that is needed is on the interlock 3 itself.
  • This variant has the potential to be most widely used, primarily intended for the lighter hanging objects 8, however not limited only to that segment of use.
  • the mobile part 2 of the device without special adjustments is applicable both for horizontal and vertical mounting as well as for the placing of the interlock“in front of’ and“behind” the mobile part of the device.
  • FIGURE 6 shows a view of the vertical surface (wall) mounting device.
  • FIGURE 7 shows a view of the horizontal surface (ceiling) mounting device.
  • the fixed part 1 contains all the elements described in the basic variants and Variants I and II with addition of the lever slot 63 (the same slot is on the strip 11) and the end stop for the movement of the hook 47.
  • This stop 47 ensures precise positioning of the interlock 3 above the bolt slot 19, and its dimensions should not hinder the manipulation with the rope 6.
  • the mobile part 2 looks like a cylinder with a round or elliptical base.
  • the interlock 3 performs the fimction of the supporting element 10 as well, consisting of the following parts: the slide bolt 4 which rotates it around the axis 48. Movement of the slide bolt 4 is limited with the stops 49 and 50.
  • the barycenter of the bolt is marked with a full circle 68 in FIGURES 6, 8, 9 and 10.
  • the lever 51 rotates on the same axis 48, and its movement is limited by the slide bolt 4 on one side and the stop 52 on the other.
  • the barycenter of the lever is marked with a filled square 69 in FIGURES 6, 8, 9 and 10. A part accepting the rope 53 and part for pushing the bolt 54 can be seen on the lever 51.
  • the position of the barycenter 68 and barycenter 69 is important for understanding of the device operation.
  • the next element is the strip 11 that connects the interlock 3 and hanging object 8. On the strip 11 we can also see the hole needed for the movement of the part accepting the rope 53.
  • the interlock 3 consists of two straight cylinders, the end cylinders 55, carrying the stops 49, 50 and 52 to which the strip 11 is attached, and between them is the axis 48 that connects them and gives them firmness, carrying the slide bolt 4 and the lever 51 that can rotate around the axis 48 to a limited extent.
  • the cylinders 55 may have dents 56 in order to facilitate easier removal of the rope 6 from the interlock 3 at the end of the manipulation procedure.
  • the length of the interlock 3 is greater than the length of the bolt hole 19 and the lever slot 63, so they do not hinder its movement.
  • the space between the further ends of the two parts accepting the rope 19 is greater than the width of the slot 18 so the slot does not hinder the movement of the lever 51.
  • the additional rope 58 is attached to its two ends and it is thrown over the interlock 3 so that when the additional interlock 57 is pulled the additional rope 58 performs the same role as the rope 6.
  • the additional rope 58 is returned to its starting position, there is the weight 60 placed tightening the additional rope 58 via the ropes 62 all the way to the stops 59 that are attached to the strip 11.
  • FIGURE 6 shows the other method of returning the additional rope 58 into the starting position by being tied by the rope 62 to one end of the elastic strip 61.
  • the elastic strip 61 is affixed to the strip 11 with the other end. In the other case the elastic force changes the gravitational force that is transferred by the weight 60 via ropes 62 to the rope 58.
  • FIGURE 8 for the vertical mounting with the interlock 3“behind” the mobile part 2, a side view is shown on the elements of the mobile part 2, by stages:
  • FIGURE 8a shows an initial view of the device with the rope 6 attached on the interlock 3.
  • the elements of the device important for the procedure monitoring are shown and the same applies for the FIGURES 8, 9 i 10,
  • FIGURE 8b shows a view after the pulling of the rope 6 and rotating of the lever 51 that pulls out the slide bolt 4 when it is not out of the bolt slot 19 yet,
  • FIGURE 8c the slide bolt 4 is released from the pressure by the bolt slot 19 and suddenly rotates towards the stop 49, and the rope 6 is shown at the moment of being removed from the lever 51
  • FIGURE 8d the rope 6 is removed from the lever 51, the interlock 3 moved from the bolt slot 19 under the weight of the hanging object 8, so there is no possibility for the re-locking, and the rope 6 is attached to the strip 11 and it is positioned in the dents for the rope 56,
  • FIGURE 8e the interlock 3 is additionally rotated until it reaches the balance position conditioned by mutual influence of the mentioned three forces
  • FIGURES 8f, 8g and 8h the position of the elements of the interlock 3 can be followed conditioned by the mentioned forces, also by following the positions of the barycenter 68 and barycenter 69.
  • FIGURE 9 is a side view of the elements of the mobile part in stages for the lowering manipulation in case of the horizontal mounting and when the interlock 3 is“in front of’ the mobile part 2:
  • FIGURE 9a is an initial view of the device with the rope 6 attached to the interlock 3,
  • FIGURE 9b shows the moment when the slide bolt 4 is pulled out of the bolt slot 19 and the rope 6 still on the lever 51 ,
  • FIGURE 9c shows the interlock 3 that is moved by the weight of the hanging object 8 and disabled the slide bolt 4 to fall into the bolt slot 19 again, and the rope switched to the strip 11 and in the rope dents 56.
  • FIGURES 9d and 9e show continuation of the movements of the mobile parts of the interlock 3 conditioned by the mentioned forces and following the positions of the barycentre 68 and 69.
  • FIGURE 10 shows a side view of the elements of the mobile part 2 in stages for the manipulation of lifting in horizontal mounting and the interlock 3“in front of’ the mobile part 2:
  • FIGURES 10a and 10b we can follow the conduct of the elements of the interlock 3,
  • FIGURE 10c shows a moment when the interlock 3 reaches the final stop of the interlock movement 47 and when the slide bolt 4 slides into the bolt hole 19.
  • FIGURE lOd shows detachment of the rope 6 from the interlock 3 when it pushes the lever 51, moved by the bracket 15, until the rope 6 is released from the lever 51 and remains free for the rope bracket 15 to detach it from the interlock 3.
  • the lever 51 under its own weight, returns to the balanced position shown in the FIGURE lOe, or the position in which the device is ready for the next detachment manipulation.
  • the procedure of manipulation with the device can be divided into three procedures as follows:
  • Procedure A Mounting of the hanging object 8 together with the mobile part 2 of the device into the fixed part 1 of the device.
  • Procedure B Lowering of the already mounted mobile part 2 of the device, together with the hanging object 8, for servicing and re-lifting and fastening into the fixed part 1 of the device,
  • Procedure C Demounting of the mobile part 2 of the device together with the hanging object 8.
  • the stops 46 will prevent the rope from falling through the slot 18 and thus prevent the hanging object 8 from falling down uncontrollably.
  • the procedure is to put the mobile part 2 on the ground, holding the ends of the rope 6 in parallel, then put the rope 6 on the ground too, and then according to the procedure A for the first mounting, everything is lifted.
  • the bracket 15 is pulled in with the rope 6 towards the operator and removes the rope 6 from the bracket 15 so that both ends of the doubled rope attached to the fixed part 1 are with the operator. This part of manipulation is shown in the FIGURE 15.
  • the operator pulls the end of the doubled rope 6 coming out of the entry hole 14 of the fixed part 1, manually or by device such as the winding winch 45.
  • the rope 6 through the guideways 17 precisely guides the mobile part 2 of the device into the fixed part 1 to the position when the mobile part 2 reaches the final position (the final position is determined by the stop 21 or when the hanging object 8 touches the construction 9).
  • the latching of the mobile part 2 in the present position is done.
  • the latching depending on the variant of the device, is done manually or automatically.
  • Removing the rope 6 is a reverse procedure to that shown in FIGURES 16 and 17.
  • the other method of removing the rope is applicable only for the light rope 6 and it is more favorable when installation of other same hanging objects 8 that are nearby and at the same height should be continued (such as for example the installation of the new year’s decoration on the street light poles in a row alongside streets).
  • the advantage of this method is that the rope 6 stays on the rope bracket 15 and it is enough for the operator to bring the entire set (a stick 5 with the bracket 15 and the rope 6) to the next device.
  • Removing the stronger rope 16 is done when the operator pulls one strand of the rope until its position replaces the light rope 6, and then the light rope 6 is removed in the already described manner.
  • the operator brings the doubled light rope 6 to the fixed part 1 of the device with the rope bracket 15 and the light stick 5 (or drone and the like) so that it is above the interlock 3.
  • the distance between the two strands of the doubled rope 6 is greater than the length of the interlock 3 so that it does not touch it during its placement.
  • Dimensions and position of the interlock 3 define the dimensions, shape and position of the rope bracket 15. FIGURE 17b.
  • FIGURE 1 shows the method of placing the brake 7 on the rope 6
  • FIGURE 11a shows the position of the brake 7 before the manipulation starts
  • FIGURE 1 lb is a view of the brake 7 performing the braking function.
  • the slide bolt is unlatched either automatically (in Variant III of the device), or manually (in Variant I and II by the operator using the hook 30 or key 33 on the stick 5).
  • the intervention may follow on the hanging object hung on the rope, or the hanging object 8, together with the mobile part 2 of the device is detached by taking the interlock 3 off the rope 6, and continuing to carry out the servicing at any place.
  • Removing of the rope 6 follows, which can be done in two ways.
  • the first way is by simple pulling of one end of the doubled rope 6 towards the operator until the other end is put over the interlock 3.
  • the other way of removing the rope 6 can be followed in FIGURES 16f to 16a and FIGURES 17F to 17A, and it is done by taking over the rope 6 with the stick 5 and the rope bracket 15 by leaning the grooves 31 on one strand of the doubled rope 6, slightly tightening the rope 6; then the stick 5 is moved to the side so much to make space between the two strands of the doubled rope 6 so that the other strand could be attached to the other groove 31 of the rope bracket 15; then the stick 5 is moved to slide over the rope 6 strands until it reaches the interlock 3 and end of the rope 6 so that it is tightened over the bracket 15. Further on the operator moves the stick 5 and the rope bracket 15 with the rope 6 and takes it off the interlock 3.
  • This other method of removing the rope is applicable only with the light rope 6 and it is useful in case when the servicing needs to done on the same other hanging objects 8 that are nearby and at the same height (for example changing the bulbs of the indoor lighting systems inside a hall).
  • the advantage of this method is that the rope 6 stays on the rope bracket 15 and it is enough that the operator just brings the whole set (the stick 5 with the rope bracket 15 and the rope 6 to the next hanging object 8). Removal of the stronger rope 16 is done by the operator pulling one end of the stronger rope until its position is replaced by the light rope 6, and then the light rope 6 is removed as already described.
  • the steps are the same as in the Procedure B from point 1 to point 10, followed by the rope removal.
  • the operator is free to remove the rope 6 from the fixed part 1 of the device by pulling to himself either the strands of the doubled rope 6 coming out of the hole 14 or the strands coming out of the hole 13 until the rope 6 falls off the fixed part 1 of the device.
  • the light pilot rope 6 that would similarly to the placing of the stronger rope 16 serve as the additional rope, holding the heavy rope 16 when pulled through the fixed part 1 , until it is lowered.
  • the device and procedure can be applied for industrial, home or communal needs where it is necessary to install the equipment in places that are difficult for direct access and/or needing to be accessed periodically for servicing, periodic inspections, cleaning or frequent installing or de-installing of the equipment.
  • the fixed part of the device could be installed on the outside of high buildings and serve for evacuation of people or equipment in emergency situations, as well as to lift firemen or rescuers to high floors.
  • the device and procedure may be used also in cases when de-installing of the equipment is not planned however it makes easier, faster and cheaper the first mounting such as installation of above ground electrical network that would first be formed on the ground along lines of pillars and then by such devices the complete line together with insulators and conductors carriers would be lifted up on the pillars. This solution is acceptable considering the reliability and price of the device, working speed and workplace safety.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Emergency Lowering Means (AREA)
  • Supports Or Holders For Household Use (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour la manipulation par une corde d'un équipement difficile à approcher, qui permettent un ancrage sans danger de l'équipement (8) sur des plafonds, des murs ou des piliers à des hauteurs dont il est difficile de s'approcher. Le dispositif peut être facilement approché à l'aide d'un manche (5) et d'une corde (6) avec laquelle l'équipement (8) peut être abaissé et fixé à la hauteur requise. Le dispositif est constitué de trois parties de base : une partie fixe, une partie mobile et une corde. La partie fixe (1) est constituée d'une seule pièce, et est fixée à une structure de support (9). La partie mobile (2) est constituée d'un crochet (3) et d'un verrou coulissant (4), et porte le poids d'un objet suspendu (8). Le résumé de la procédure est le suivant : une corde double (6) est placée sur le crochet (3) au moyen du manche (5), après quoi un déverrouillage est effectué, automatiquement ou avec le manche (5), et en détendant la corde, l'équipement est abaissé jusqu'à la hauteur requise où il reste fixé par un frein (7). En tirant sur la corde (6), l'équipement est soulevé et un verrouillage est effectué, puis la corde (6) est détachée par le manche (5). Si l'équipement est lourd, une corde légère (6) est utilisée pour tirer une corde lourde (16).
PCT/RS2019/000011 2018-03-13 2019-02-27 Procédure et dispositif pour la manipulation par une corde d'un équipement difficile à approcher WO2019177480A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RSP-2018/0311 2018-03-13
RS20180311A RS61382B1 (sr) 2018-03-14 2018-03-14 Postupak i uređaj za manipulaciju teško pristupačnom opremom pomoću užeta

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WO2019177480A1 true WO2019177480A1 (fr) 2019-09-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113685787A (zh) * 2021-10-26 2021-11-23 深圳市润格光电科技有限公司 一种对意外坠落灯具进行防护的悬挂装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798680A (en) 1951-07-05 1957-07-09 Thompson Electric Company Lowering hanger with constant tension
US3686498A (en) 1971-01-20 1972-08-22 Meyer Mfg Inc Remote fixture lowering device
US4149230A (en) * 1977-09-22 1979-04-10 Gar Design Research, Inc. Visual latching condition indicating system for tall pole carrier assembly
US5105349A (en) 1990-09-24 1992-04-14 Falls John W Motorized chandelier lift system
US5299952A (en) * 1992-07-27 1994-04-05 Hinds Jr Richard A Overhead electrical fixture and portable lowering tool therefor
US5975726A (en) 1997-09-19 1999-11-02 Quality Lighting High mast lighting system
US6634901B2 (en) 2002-02-04 2003-10-21 Angelo Fan Brace Licensing, Llc Quick connect device for electrical fixture
US20080037264A1 (en) 2006-08-08 2008-02-14 Craig Delane Bennett Fixture lowering device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798680A (en) 1951-07-05 1957-07-09 Thompson Electric Company Lowering hanger with constant tension
US3686498A (en) 1971-01-20 1972-08-22 Meyer Mfg Inc Remote fixture lowering device
US4149230A (en) * 1977-09-22 1979-04-10 Gar Design Research, Inc. Visual latching condition indicating system for tall pole carrier assembly
US5105349A (en) 1990-09-24 1992-04-14 Falls John W Motorized chandelier lift system
US5299952A (en) * 1992-07-27 1994-04-05 Hinds Jr Richard A Overhead electrical fixture and portable lowering tool therefor
US5975726A (en) 1997-09-19 1999-11-02 Quality Lighting High mast lighting system
US6634901B2 (en) 2002-02-04 2003-10-21 Angelo Fan Brace Licensing, Llc Quick connect device for electrical fixture
US20080037264A1 (en) 2006-08-08 2008-02-14 Craig Delane Bennett Fixture lowering device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113685787A (zh) * 2021-10-26 2021-11-23 深圳市润格光电科技有限公司 一种对意外坠落灯具进行防护的悬挂装置
CN113685787B (zh) * 2021-10-26 2021-12-31 深圳市润格光电科技有限公司 一种对意外坠落灯具进行防护的悬挂装置

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RS20180311A1 (sr) 2019-09-30

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