MXPA97004068A

MXPA97004068A - Winding arrangement for rolling an extended and average flexible element of rolling or devan

Info

Publication number: MXPA97004068A
Application number: MXPA/A/1997/004068A
Authority: MX
Inventors: Koskelainen Erkki
Original assignee: Sahlins Maskin Ab
Priority date: 1994-12-02
Filing date: 1997-06-02
Publication date: 1998-02-01

Abstract

The present invention relates to an apparatus for winding and unwinding an elongate flexible element thereon, the flexible element has an outer and an inner end, the apparatus is characterized in that it comprises: at least one end wall having a centralized circular opening in the same and a first and second group of openings positioned radially from the central opening, a first plurality of removable rod members placed around the centralized opening where each respective rod is attached to at least one end wall in each opening in the first group of openings, the rod members are spaced apart equidistantly from each other, each rod member collectively forms a centralized and structurally open core for winding the flexible element around it, the core is coextensive with the circular opening of at least one end wall, the rod members retained in at least one wall after the core is formed and when the flexible element is to be unwound, and a second plurality of flexible rod members placed around the centralized opening and wherein each respective rod of the second plurality is attached to at least one end wall in each opening of the second group of openings, the second plurality of removable rod members are attached to the end wall after the coil is formed, and the second rod members retain and maintain an edge outside of the bobi

Description

FLOATING ARRANGEMENT FOR ROLLING AN EXTENDED AND AVERAGE FLEXIBLE ELEMENT OF ROLLING OR WINDING The present invention relates to a winding system for winding an elongated flexible element, such as a cable, string, rope, hawser, wire, or hose and for unrolling the elongate flexible element, in conjunction with which the flexible element, elongated is rolled on a core, which is removable for the purpose of unwinding the flexible element, elongated by its inner end. A number of different systems are known for placing optical cables and other types of cables and lines in the ground, and all of these have advantages and disadvantages. The technical and / or geographical obstacles affect the way to proceed with this, and a technical obstacle that can be mentioned is the inability of the equipment to be dragged, that is to be fed or blown, the optical cable for the entire proposed distance . So, it is necessary to go to the so-called fold, which as a rule is difficult, especially when long distances are included. Most projects for which cables are required to be placed on the ground also require bending. Also, there is a risk that the cable will suffer damage if it is left above the ground for a long time. In this way, there is a need for a new winding system, which, among other things, allows the aforementioned problems to be solved. There is also the desire to be able to wind or roll in a certain length of the flexible, elongated, desired element of the kind referred to above, which is capable of being unwound from a coil or winding proposed by unwinding both internally and externally and without twisting the flexible element, elongated. For example, it should be possible for a length of the cable to be unwound and withdrawn in each of the two directions, which are mutually opposite each other, from a winding point located in the center, without the need to move the coil or winding. A winding or winding system previously described by means of JP, A, 53-114083 is a winding system for cables, in which a conically processed core is removed, for the purpose of unwinding the cable at its inner end. An external protective device around the coiled cable coil prevents unwinding of the cable at its outer end. The unwinding of the interior is only allowed in this way, which requires the use of a machine that rotates the coil and guides the cable as it unwinds, so that there is no twisting. The core must also be conical, which means that the space available for winding the cable is reduced, compared to that of a constant core diameter. Optional unwinding of the reel is not allowed, and special arrangements are also required in the case of unwinding from inside the center of the reel. SE-B-469228 refers to the packing of the cable inside a box that exhibits a cover and a base, with the cable wound around a tree. The cable is fed from the inside and to an opening in the cover. The winding or winding of the cable takes place around a circular core, which is subsequently removed in conjunction with the package of the coil. Only the packaging box with its cover then serve to jointly retain the resulting cable coil, which excludes the possibility of optional cable feeding by its internal or external end.

US-A-4, 580, 399 discloses a winding or winding system in which a cable is wound or wound on a cylindrical core, in which case the unwinding must take place in a special manner in the axial direction in order to to prevent twisting of the cable. The internal unwinding requires a tonic core, which is removed at least a certain distance before unwinding from the inside in an axial direction. This arrangement does not allow the optional unwinding from the inside or from the outside of one and the same coil. The main object of the present invention is therefore to solve the problems mentioned above by a simple means, still effective. This object is achieved by means of a winding or winding system according to the present invention, which is essentially characterized in that a connection in the form of rods or tubes extending along the coil of an elongated element, wound , deformed so arranged to be capable of the application in such a way as to hold the coil together and thus to be retained during unwinding of the elongate flexible element, in connection with which at least one end wall of the coil is arranged so as to interact with the core for unwinding the flexible element, elongated, by its outer end, and with the external coil connection, to unwind the flexible element, elongated by its inner end. A further object of the invention is to find a winding or winding means for this purpose that is capable of being applied in conjunction with a winding or winding system according to the present invention. This additional object is achieved by means of a winding or winding means according to the present invention, characterized essentially in that the core, which is formed of rods or tubes, is removably joined to at least one displaced terminal wall. radially from a space of the coil proposed for the elongate flexible element, both internally and externally around the coil space. The invention is described below as a number of exemplary embodiments, preferred in conjunction with optical cables, although the invention can equally be applied to other kinds of flexible, sheathed cables and other flexible, elongated elements. Reference is also made in this point to the attached drawings, in which: Figure 1 shows a perspective view of a coil ready to be extracted at its outer end; Figure 2 shows a winding or winding apparatus during the winding phase of a cable; Figure 3 shows a perspective view of a cable coil ready to be extracted at its inner end; Figures 4 and 5 show variants of the core components; Y Figures 6-9 show an additional mode of a coil and its application, in conjunction with which: Figure 6 shows a coil with simultaneous unrolling from the outside and the inside; Figure 7 shows the coil arranged for extraction at its inner end, Figure 8 shows only the empty coil, and Figure 9 shows the coil wound for unwinding at its outer end.

According to the invention, a winding or winding system for the winding of, for example, a cable 1 or some other flexible, elongated element, and for the unwinding of the cable 1, etc. for the purpose of allowing the bending work to be mechanized and to allow the cable, etc. unrolls as it is removed, but without rotation of the winding drum used in conjunction with the winding, comprises the cable, etc., 1, which is made and wound on a core 2, which is removable in the manner illustrated in FIG. Figure 3 for the purpose of unwinding the cable 1, etc., by its inner end. More specifically, a connection 3 for a coil 4 formed in accordance with the aforementioned system is arranged to extend along a cable coil 6, wound externally around it. This connection 3 is arranged to be capable of the application in a manner such as to jointly retain the coil 4 and in this manner to be retained during the unwinding of the cable 1, etc., by its inner end, as shown in the Figure 3. In this way, this is a realistic hope to be able to improve the handling of the cable with respect to quality, and at the same time, achieve the advantages due to the rationalization offered by the winding or winding system. Actually, the test of the system has been carried out in secret, and the control measurements on the cable and its conductive fibers were carried out during and after the laying and handling of the cable. No dangerous changes were revealed by the test. Accordingly, it is now possible to achieve the winding of, for example, an optical cable 1 by subjecting the cable 1, specifically by relative movement between the core 2 of the formed coil, and a winding or winding arrangement 5 provided for this purpose. This winding arrangement 5 can be rotated around the core 2 of the coil with the cable 1 extending axially along a section A in relation to the core 2 before the cable 1 is fed for the tangential distribution to the core 2. , around a section B and also in relation to the proposed and formed cable coil 6, that is, the winding cable that exhibits the rolled shape after coiling on the core 2. Preferably, at least one terminal wall 7 the coil is arranged to interact respectively with the core 2 and the external connection 3 of the coil on the proposed occasion, in order to allow the unwinding of the cable 1 by its inner and outer ends; see Figure 1 and Figure 3. The same element 8, or at least the substantially similar element 8, are appropriately used for this purpose, in order to alternatively form a core 2 and an external connection 3 of the coil. The core 2 is thus preferably formed by an appropriate number of rods 8, for example six, as shown in the illustrative embodiment. These rods 8 are assembled detachably arranged with at least one terminal wall 7 displaced radially by a distance I and II, respectively, inwardly and outwardly., respectively, from a proposed coil space 9, for the cable 1 both internally and externally around the coil space 9, of cable. In order to facilitate the handling of the coil 4 and the cable 1, for example, in order to allow the coil 4 to be able to be wound on a support base, two terminal walls 7, 10 are arranged to be included as the components of the coil 4. a proposed coil 4, of which at least one end wall 10 exhibits an axially extending inlet opening 11 and centrally located for the cable 1, to allow extraction at its inner end IA from the coil 4. Both 7, 10 terminal, disk-shaped walls that are preferably executed peripherally, circularly, are retained at a desired distance L from each other by means of the rods 8 operating respectively as a core 2 and an external coil connection 3. These rods 8 are able to interact with the terminal walls 7, 10 to allow their detachable connection at a distance L established, between the terminal walls 7, 10. The detachable connection is preferably achieved by at least one end 8A of the rods, but preferably both ends 8A, 8B, which exhibit threaded devices 13 by means of which nuts 14-17 or some other safety device are fixed, for example. example a bolt 18, to be able to interact, for the purpose of retaining the walls 7, 10 terminal to the rods 8, with a nut on either side 7A, 7B; 10A, 10B of a terminal wall 7, 10, to secure them after they have been inserted through an appropriate opening. The terminal walls 7, 10 exhibit a number of receiving openings 19, 20 corresponding to the desired number of rods 8 distributed around the periphery of the terminal walls 7, 10. More specifically, a group C of openings 19 evenly distributed around the periphery of the end wall is present directly adjacent to the central opening 12 in the terminal wall. A group D of the openings 20 is similarly present at the outer periphery of the end walls, directly adjacent to the outer peripheral edge 21 of the respective terminal wall. The openings 19, 20 move radially from a coil space 9, exposed, for the cable 1, both internally and externally around the coil space 9, of cable. In the case of the fixing screws 18, it is sufficient to have a screw 18 at either end of a bar 8 or a tube 8 ?, and identical screw 18 can be able to be inserted into the threaded holes 24 in a radial direction between the screws. walls 7, 10 terminals established at a predetermined distance. The function of the invention must have emerged from the embodiment described above, and by winding the optical cable 1 over the detachable core 2 of the coil when preforming during the winding operation, the cable 1 can be removed without rotating the drum 4 the coil This allows the unwinding of the rope 1 of the bobbin drum, by its inner end IA and its outer end IB without the need to apply a pulling force, and the rope can be pulled out by pulling the rope end IA, IB of the rope proposed in FIG. direction 22, 23 of extraction. In this way, there is the possibility of extracting or pulling cable 1 in two directions. Optical cable 1 in long lengths is purchased and stored in a suitable location within the region. The winding or winding arrangement 5 is also located there. Then you can roll lengths or exact lengths by the pre-forming method. This also means less wastage of the optical cable 1. The winding or winding of 4,000 meters of cable is estimated to take approximately 1 hour. The rolled drum and a simple platform are then transported to the laying site. A winding or winding arrangement for use in the field is placed in association with a final feeder along the laying distance. This is controlled in conjunction with the feeders and gradually unwinds the cable 1. This allows the fold to be removed. The economic benefits achieved from the introduction of the winding or winding system include: an improvement in quality in conjunction with the placement through the elimination of the manual unwinding, since the manual unwinding produces a non-uniform unwinding with the risk of pulling. No longer need a drum handler, or those people who are related to the fold, which is sometimes required in a large number. The units achieved in this way are thus easily manageable. According to the second illustrative embodiment of the invention, the winding or winding system can be seen from the drawings in Figures 6-9 which comprises a connection 50 displaced radially outwardly from an internally placed core 102, see specifically the Figure 6, connection extending through 51, the proposed winding direction 52 of the cable for the purpose of jointly managing two sides 107, 110 of terminal walls placed at a mutual distance CL from each other. From the end wall sides 107, 110, at least one end wall side 110 is provided with an inlet opening 112 to allow unwinding of an elongate element 101, flexible at its inner end through the opening 112. This connection 50 is also arranged to be enclosed by an element 101 of the coil 106 wound on a core 102 proposed by the pre-form. This connection 50 may consist of elements 108 identical to those of which the core 102 is constructed, for example rods, tubes or other reinforcement supports. This connection 50 can be movably supported in mounting grooves 54, 55 oriented essentially radially 53, in the end walls 107, 110. The elements 108 can be formed from tubes in which the bolt-like rods, threaded, elongated are capable of being introduced, on which nuts are screwed out of the end walls for the purpose of holding them together. The terminal wall 110 provided with a central opening 112 is also arranged to exhibit a passageway 106, or the terminal wall 110 is capable of being partitioned in some other appropriate manner. A bridge element 57, which may consist of a plate, for example, and may be detachably attached to the terminal wall 110 for the purpose of joining the slot 56, through which a cable 101 may be passed, for example, in the case that the cable 101 is unwound respectively from the outside and from the inside of the coil, before the ring-like operation is left around the cable, etc., 101. A cable 101, for example, can be withdrawn at desired lengths or lengths by placing the aforementioned connection 50 at a radially selected distance from the core 102 in such a way that the length of the cable 101, which is located on either side of the removable connection 50, couples the distance for which it is desired that the cable extends, starting from the point of extraction between the respective ends 101A, 101B of the cable. The coil 104 may have radially displaced slots 54, 55 which allow it to adapt to accommodate the elements 108 in positions such as to form either a core 102, an intermediate connection 50 or an external connection 103. A support 60 can be formed, for example, from two beams detachably joined to the permanent brackets 61 in a terminal wall 100 at an angle X such that the coil 104 is tilted in its upright position in a base 62, for example at arranging the beams so that they are capable of being introduced into hollow brackets 61 arranged on the exterior 110A of a terminal wall 110 adjacent to each other and arranged so that the resulting support 60 extends laterally for a considerable distance seen along the floor 62, to provide a secure erection in the ground, as shown in Figures 6 and 7, thereby allowing unwinding of the cable 101, etc., from the outside without the need for the coil with the rope 101 to be wound to be rolled or lifted for each unrolled turn. The internal unwinding, for example as shown in Figure 7, of the desired amount of the cable 101 can take place after the core for the coil has been replaced by an external connection 103 and / or 50. The essential requirement is that the end walls 107, 110 be held together and separated from each other in such a way that the winding 106 of the complete cable can not be pulled laterally as a collective unit, which will result in tangling and difficulties with cable 101. The invention is not restricted to the illustrative examples described above and illustrated in the drawings, but can be modified within the scope of the patent claims without departing from the idea of the invention. The component parts of the coil may consist of metallic, plastic or fibrous material, for example, aluminum, fiberglass or compressed cardboard. It is noted that in relation to this date, the best method known by the applicant to carry out the present invention, is the conventional one for the manufacture of the objects to which it refers. Having described the invention as above, the content of the following is claimed as property:

Claims

1. Winding or winding system for winding a flexible, elongated element, such as cable, line, rope, hawser, wire or hose, and for unrolling the flexible, elongate element in conjunction with which the elongate flexible element is wound onto a core which is removable for the purpose of unrolling the flexible element, elongated by its inner end, characterized in that a connection in the form of rods or tubes extending along the coil of an elongated, rolled, preformed element is arranged to be capable of being applied in such a manner as to hold the coil together, and in this manner to be retained during unwinding of the elongate flexible element, in connection with which at least one end wall of the coil is arranged to interact with the core to unwind the flexible element, elongated by its outer end, and with the external coil connection to unwind the flexible element, elongated by its inner end.

2. The winding or winding system according to claim 1, characterized in that a connection displaced radially outwardly from the core and extending through the winding direction of the cable is arranged to be enclosed by the cable in a coil formed by the cable, etc.

3. The winding or winding system according to one or other of the preceding claims, characterized in that identical rods or tubes are alternatively used for the core and the external core connection.

4. The winding or winding system according to one or more of the preceding claims, characterized in that two end walls of which one exhibits a central opening, are capable of being joined together by means of the core and the coil connection shifted radially towards outside.

5. The winding or winding system according to one or other of the preceding claims, characterized in that a connection extending externally along the coil of the elongated, wound element is arranged to be capable of the application in such a way as to retain together the coil and in this way to be retained during the unwinding of the flexible element, elongated by its inner end.

6. The winding or winding system according to one or other of the preceding claims, characterized in that a terminal wall provided with a central opening is capable of being divided, preferably a slot capable of being covered by a bridge or link element.

7. The winding or winding system according to one or more of the preceding claims, characterized in that the winding is achieved by the relative movement between the core and a winding or winding arrangement provided for this purpose, in which the winding arrangement can be rotate around the core with the axially extending cable - relative to the core before the flexible, elongate element is fed for tangential distribution to the core and coil formed, and proposed.

8. The winding or winding system according to one or other of the preceding claims, characterized in that the core formed by the rods or tubes can be detachably joined from a coil space proposed for the elongated flexible element, both internally as externally around the coil space.

9. The winding or winding system according to claim 8, characterized in that the core is movably supported in mounting grooves oriented essentially radially on the end, side walls.

10. The winding or winding system according to one or another of claims 8-9, characterized in that two end walls, of which a terminal wall exhibits an axially extending inlet opening., centrally located, for the elongated, flexible element, are retained at a desired distance from one another by means of the rods / tubes functioning respectively as a core and as a coil connection, external, rods / tubes which are able to interact with the end walls to allow their detachable connection at a distance established between the end walls, for example by at least one end of the rods exhibiting threaded devices by means of which nuts, screws, etc. They are capable of being screwed on the outside of a terminal wall for the purpose of securing them.