JP2019172460A - Cable drawing jig - Google Patents

Abstract

To provide a cable drawing jig which allows a person on a basket to pull out the cable smoothly and easily from the cable winding, also easily send out the drawn cable downward while eliminating the twist.SOLUTION: The cable drawing jig 1 is used to attach a cable winding 8 that is a wound cable to an elevator wire rope 7 so that the cable 9 can be pulled out from the cable winding 8. The cable drawing jig 1 is provided with a fixing portion 29 fixed to the wire rope 7 and first and second rollers 50 and 55 which are hook portions for hooking the cable winding 8.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a cable drawing jig for attaching a cable winding, which is a wound cable, to a wire rope so that the cable can be pulled out.

  Conventionally, there is an elevator power supply system (hereinafter simply referred to as a power supply system) described in Patent Document 1. The power supply system includes a power receiving device and a power supply cable, and the power receiving device is installed in an upper part of a machine room or a hoistway. The power supply cable includes a main cable and a branch cable that branches from the main cable at predetermined intervals.

  One end of the main cable is electrically connected to the power receiving device. The main cable extends vertically downward from the power receiving device, and each branch cable is electrically connected to a plurality of landing installation devices installed at each floor landing. The power receiving device supplies power to each hall installation device via the main cable and the branch cable. The plurality of hall devices include a hall push button device and a hall display device.

JP 2006-182462 A

  When the power supply cable is replaced by renewal of an elevator or the like, for example, the operation is performed according to the following procedure. First, one end of the power feeding cable is electrically connected to the power receiving device. Subsequently, two workers move onto the cage, one of them pulls out the main cable from the cable winding, which is a wound power supply cable, and the other twists the main cable and branch cable. While feeding the cable, feed the power cable downward. The feeding to the lower side of the power feeding cable is executed until there is no more cable winding. Then, after that, when the branch cable is electrically connected to the corresponding hall installation device on the floor, the operation is completed.

  In order to pull out the feeding cable from the cable winding, the heavy cable winding must be arranged vertically. Further, if the power feeding cable is twisted, the branch cable cannot be smoothly connected to the hall installation device, which may cause disconnection. Moreover, the space on the cage is very narrow, and there are many parts removed from the hoistway, tools necessary for construction, etc., and it is difficult to perform the work.

  Therefore, it is extremely difficult for one person to perform the work of pulling out the power supply cable from the cable winding and feeding it downward while correcting the twist of the drawn power supply cable on a narrow cage. I need it. In addition, this work occupies a considerable amount of time for the entire construction, and many other works cannot be performed without completing this work. Therefore, if this work is delayed, it tends to lead to a large delay in the entire work time.

  Therefore, the purpose of the present disclosure is to enable cable pullout for one person on the basket to smoothly and easily pull out the cable from the cable winding, and to easily send out the pulled-out cable while eliminating twisting. It is in providing tools.

  In order to solve the above-described problems, a cable drawing jig according to the present invention is a cable drawing tool for attaching a cable winding, which is a wound cable, to an elevator wire rope so that the cable can be pulled out from the cable winding. It is a jig | tool, Comprising: The fixing | fixed part fixed to the said wire rope and the hook part which hooks the said cable winding are provided.

  According to the present invention, for example, after fixing the fixing portion of the cable drawing jig to the wire rope, the cable winding having one end electrically connected to the power receiving device can be hooked on the hooking portion. Therefore, the worker can pull out the other end side of the cable winding to the lower side by simply pulling the other end side of the cable winding hung on the hooking portion downward. Therefore, it becomes easy for one worker on the basket to pull out the other end side of the cable winding in order and send it out to the lower side while correcting the twist of the drawn cable. As a result, the replacement work of the cable can be performed by one person much more easily.

  Moreover, in this invention, you may provide the disconnection prevention part which prevents that the said cable winding remove | deviates from the said hook part.

  According to the said structure, since a cable winding does not remove | deviate from a hook part during an operation | work, an operation | work can be performed safely and rapidly.

  In the present invention, the hook portion includes a first roller and a second roller having outer peripheral surfaces on which the cable winding is hung, and further includes a long flat plate portion and a normal direction from the flat plate portion. A first roller mounting portion that includes a first shaft portion that extends substantially in parallel; the first roller mounting portion to which the first roller is rotatably mounted; and the first shaft portion that is spaced from the longitudinal direction of the flat plate portion. A second roller attachment portion including a second shaft portion extending substantially parallel to the normal line direction from the flat plate portion, and the second roller being rotatably attached thereto. It may be rotatably attached so as to straddle one roller and the second roller.

  According to the said structure, a cable winding can be arrange | positioned so that it may span over a 1st roller and a 2nd roller, and when pulling out a cable from a cable winding, a 1st and 2nd roller can be rotated. Therefore, the cable can be pulled out easily and smoothly from the cable winding.

  In the present invention, the flat plate portion has one or more long holes extending in the longitudinal direction, and the first roller mounting portion includes one end portion of the first shaft portion and the long hole. The second roller mounting portion may include a first mounting portion to be mounted, and the second roller mounting portion may include a second mounting portion that includes one end portion of the second shaft portion and is mounted to the elongated hole.

  According to the said structure, the attachment position of the 1st and 2nd axial part with respect to a flat plate part can be changed freely according to the diameter of a cable winding. Therefore, a cable winding of any diameter can be attached to the first roller and the second roller without a gap. Therefore, even if the cable winding has any diameter, the first and second rollers can be smoothly rotated when the cable is pulled out from the cable winding, and the cable can be smoothly pulled out from the cable winding.

  Moreover, in this invention, it attaches to the edge part on the opposite side to the said flat plate part in the said 1st axial part and the said flat part in the said 2nd axial part, and the said cable winding is a said 1st. An integral detachment preventing plate for preventing the roller and the second roller from detaching may be provided.

  According to the said structure, since a cable winding does not remove | deviate from a 1st and 2nd roller during an operation | work, an operation | work can be performed safely and rapidly.

  In the present invention, the detachment prevention plate is formed of an elongated plate, and is opposed to the flat plate portion with an interval in the extending direction of the first shaft portion, and the detachment prevention plate is extended. You may have the inclination part which inclines in the direction which leaves | separates from the said flat plate part as it goes to an end at the both ends of a direction.

  If the cable has a main cable and a branch cable that branches from the main cable, if all of the detachment prevention plates extend in the vertical direction, the cable winding is caught against the detachment prevention plate when the cable winding is rotated. Is likely to occur. On the other hand, according to the said structure, a fall prevention plate has an inclination part which leaves | separates from a flat plate part as it goes to an end at the both ends of the extension direction. Therefore, the cable portion that is blown away from the flat plate portion during the rotation of the cable winding can be released to the space generated by the formation of the inclined portion. Therefore, the cable can be restrained or prevented from being caught with respect to the detachment prevention plate when the cable winding is rotated, and the rotation of the cable winding can be executed more smoothly.

  In the present invention, the first shaft portion is configured integrally with an end portion of the first shaft portion opposite to the flat plate portion, and prevents the cable winding from being detached from the first roller, The second shaft portion may include a second detachment preventing portion configured integrally with an end portion of the second shaft portion opposite to the flat plate portion to prevent the cable winding from being detached from the second roller.

  According to the above configuration, the cable winding jig can be prevented from being detached from the cable drawing jig without preparing a separate prevention part which is a separate member, and the cable drawing jig can be easily attached to the wire rope. . Furthermore, since there is a gap between the first detachment prevention portion and the second detachment prevention portion, the material cost of the detachment prevention mechanism can be reduced compared to the case where an integral detachment prevention plate is used, and the cable is pulled out. The jig can be reduced in weight.

  Further, in the present invention, the first detachment preventing portion has an inclined portion that inclines in a direction away from the flat plate portion as it goes to a side opposite to the second detachment preventing portion side in the longitudinal direction, The two detachment preventing portions may have an inclined portion that inclines in a direction away from the flat plate portion as going to the side opposite to the first detachment preventing portion side in the longitudinal direction.

  According to the said structure, the cable part skipped away in the direction away from a flat plate part during rotation of a cable winding can be escaped to the space produced by formation of an inclined part. Therefore, the cable can be restrained or prevented from being caught with respect to the detachment prevention plate when the cable winding is rotated, and the rotation of the cable winding can be executed more smoothly.

  Moreover, in this invention, the said fixing | fixed part is connected to each of the both ends of the said longitudinal direction of the said flat plate part, and side view has a substantially L-shaped L-shaped board part, The said L-shaped board part is the said flat plate The mounting plate portion is disposed substantially parallel to the portion and provided with a U-bolt mounting hole, and the fixing portion is in a state where both the mounting plate portion and the wire rope are accommodated in a U-shaped space. May further include a U-bolt inserted through the U-bolt mounting hole, and nuts that are tightened into both ends of the U-bolt protruding from the U-bolt mounting hole.

  According to the above configuration, the cable drawing jig can be reliably fixed to the wire rope with a simple configuration.

  In the present invention, the fixing portion includes a wedge chamber defining member that covers a wedge and a part of the wire rope over the entire circumference and defines a wedge insertion chamber into which the wedge is inserted. May be inserted between the inner surface of the wedge insertion chamber and a part of the wire rope, and a part of the wire rope may not be moved by frictional force with respect to the inner surface of the wedge insertion chamber.

  According to the said structure, the static frictional force which acts on a wire rope with respect to a fixing | fixed part can be enlarged, and the jig for cable drawing can be fixed to a wire rope more reliably.

  In the present invention, the hook portion may include a roller rotatably fixed to each of the one or more shaft portions protruding from the outer surface of the wedge chamber defining member.

  According to the said structure, the jig | tool for cable drawing | extracting containing the roller which can be rotated can be comprised compactly.

  In the present invention, at least one of the shaft portions is fixed to or integrally formed with an end opposite to the wedge chamber defining member side, and the cable winding is fixed to the at least one shaft portion. There may be provided a detachment prevention portion for preventing the detachment from the roller.

  According to the said structure, since a cable winding does not remove | deviate from the jig for cable drawing | extracting during work, work can be performed safely and rapidly.

  According to the cable drawing jig according to the present invention, one person on the basket can smoothly and easily pull out the cable from the cable winding, and it is easy to send the drawn cable downward while eliminating the twist. Become.

It is a front view of the main-body part of the jig for cable drawing concerning 1st Embodiment of this invention. It is a side view of the said main-body part. It is a top view of the U bolt used when fixing the said main-body part to a wire rope. It is a front view of the detachment prevention plate of the cable drawing jig. It is a figure including the side view of the said prevention board, and is a figure explaining attachment of a prevention board. It is a side view of the mounting structure of the said cable extraction jig | tool with respect to a wire rope. It is a front view of the said attachment structure. It is a front view of the jig part which shows all the attachment structures of the said jig for cable drawing. It is a figure explaining an example of the procedure of fixation of the said cable extraction jig | tool with respect to a wire rope, and fixation of the cable winding with respect to the said jig | tool. It is a figure explaining an example of the procedure of fixation of the said cable extraction jig | tool with respect to a wire rope, and fixation of the cable winding with respect to the said jig | tool. It is a figure explaining an example of the procedure of fixation of the said cable extraction jig | tool with respect to a wire rope, and fixation of the cable winding with respect to the said jig | tool. It is a side view when the 1st jig | tool of the jig for cable drawing concerning 2nd Embodiment of this invention is seen from the side surface. It is a side view when the 2nd jig of the jig for cable drawing of a 2nd embodiment is seen from the side. It is a schematic cross section when the fixing | fixed part of the jig for cable drawing of 2nd Embodiment is cut | disconnected by the cross section perpendicular | vertical to a height direction. It is a schematic cross section when the fixing | fixed part of the jig for cable drawing of 2nd Embodiment is cut | disconnected by the cross section perpendicular | vertical to a height direction.

  Embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. In the following, when a plurality of embodiments and modifications are included, it is assumed from the beginning that a new embodiment is constructed by appropriately combining those characteristic portions. Further, in the following examples and drawings, the X direction indicates the extending direction of the first shaft portion 31 of the first roller mounting portion 30 described below, and the Y direction is a long flat plate described below. The width direction of the part 11 is shown. The Z direction indicates the height direction of the cable drawing jigs 1, 101 and coincides with the extending direction of the long flat plate portion 11. The X direction, the Y direction, and the Z direction are orthogonal to each other. Further, in the following embodiments, the same reference numerals are given to the same components in the drawings, and duplicate descriptions are omitted.

(First embodiment)
FIG. 1 is a front view of the main body 10 of the cable drawing jig 1 according to the first embodiment of the present invention, and FIG. 2 is a side view of the main body 10. FIG. 3 is a plan view of the U bolt 5 used when the main body 10 is fixed to the wire rope.

  As shown in FIGS. 1 and 2, the main body portion 10 of the cable drawing jig (hereinafter simply referred to as a jig) 1 includes a plate member 20, a first roller mounting portion 30, a second roller mounting portion 40, A roller 50 and a second roller 55 are provided. The first roller mounting portion 30 and the second roller mounting portion 40 are substantially the same, and the first roller 50 and the second roller 55 are also substantially the same. The plate member 20 is an integrated member made of metal or hard resin, and has a long flat plate portion 11 and two first and second L-shaped portions 12 and 13, and the first L-shaped portion. 12 is connected to one end portion of the flat plate portion 11 in the longitudinal direction, and the second L-shaped portion 13 is connected to the other end portion of the flat plate portion 11 in the longitudinal direction.

  As shown in FIG. 1, the flat plate part 11 has one or more long holes extending in the Z direction. For example, in the embodiment shown in FIG. 1, the flat plate portion 11 includes two long holes 11 a and 11 b that are located at an interval in the Z direction and extend in the Z direction, and the one long hole 11 a is a flat plate portion. 11, the other long hole 11b is located on the other side of the flat plate portion 11 in the Z direction. Moreover, each long hole 11a, 11b is arrange | positioned in the center part of the flat plate part 11 regarding the Y direction.

  As shown in FIG. 2, the first L-shaped portion 12 is a plate-shaped portion having a substantially L shape in a side view, and includes an X-direction extending portion 12 a and a Z-direction extending portion 12 b as a mounting plate portion. . The X-direction extending portion 12a extends from one end portion in the Z direction of the flat plate portion 11 to one side in the X direction, and the Z direction extending portion 12b extends from the end portion on the one side in the X direction of the X direction extending portion 12a to the Z direction. Extends in one direction. The Z-direction extending portion 12b is disposed substantially parallel to the flat plate portion 11 and has a U-bolt mounting hole 12c.

  Similarly, the second L-shaped portion 13 is a plate-shaped portion having a substantially L shape in a side view, and includes an X-direction extending portion 13a and a Z-direction extending portion 13b as a mounting plate portion. The X-direction extending portion 13a extends from the other end portion in the Z direction of the flat plate portion 11 to one side in the X direction, and the Z direction extending portion 13b extends from the end portion on the one side in the X direction of the X direction extending portion 12a. It extends to the other side in the Z direction. The Z-direction extending portion 13b is disposed substantially parallel to the flat plate portion 11 and has a U bolt mounting hole 13c.

  The first roller mounting portion 30 has a first shaft portion 31, one or more rolling bearings 32, and a first nut 33, as shown in FIG. 1, and has a second nut 34, as shown in FIG. . The 1st axial part 31 is a cylindrical member, and has an external thread in the outer peripheral surface of both ends. Moreover, the outer diameter of the 1st axial part 31 is smaller than the dimension of the Y direction of the long hole 11a. One side in the X direction of the first shaft portion 31 is inserted into the long hole 11a, and one end portion in the X direction of the first shaft portion 31 protrudes from the flat plate portion 11 to one side in the X direction as shown in FIG. By tightening the second nut 34 to the male screw at one end of the first shaft portion 31 in the X direction, the first shaft portion 31 extends in the normal direction (matches the X direction) of the flat plate portion 11. It is fixed to the flat plate part 11. The one end portion of the first shaft portion 31 and the second nut 34 constitute a first attachment portion 38 of the first roller attachment portion 30.

  The rolling bearing 32 includes an inner ring, an outer ring, and rolling elements. The inner ring is externally fitted and fixed to the outer peripheral surface of the first shaft portion 31, and the outer ring is rotatably attached to the inner ring via rolling elements. The first roller 50 is fixed by being fitted onto the outer peripheral surface of the outer ring, and as a result, is fixed rotatably with respect to the first shaft portion 31. The first nut 33 is fastened to the other end portion of the first shaft portion 31 in a state where the first roller 50 is fixed to the outer ring. Thereby, detachment of the rolling bearing 32 with respect to the first shaft portion 31 is prevented.

  Similarly, the second roller mounting portion 40 has a second shaft portion 41, one or more rolling bearings 42, and a first nut 43 as shown in FIG. 1, and as shown in FIG. 2 nuts 44 are provided. The second shaft portion 41 is a columnar member and has external threads on the outer peripheral surfaces of both ends. Further, the outer diameter of the second shaft portion 41 is smaller than the dimension in the Y direction of the long hole 11b. One side in the X direction of the second shaft portion 41 is inserted into the long hole 11b, and one end portion in the X direction of the second shaft portion 41 projects from the flat plate portion 11 to one side in the X direction as shown in FIG. By tightening the second nut 44 on the male screw at one end of the second shaft portion 41 in the X direction, the second shaft portion 41 is fixed to the flat plate portion 11 in a state extending in the normal direction of the flat plate portion 11. The The one end portion of the second shaft portion 41 and the second nut 44 constitute a second attachment portion 48 of the second roller attachment portion 40.

  The rolling bearing 42 includes an inner ring, an outer ring, and rolling elements. The inner ring is externally fitted and fixed to the outer peripheral surface of the second shaft portion 41, and the outer ring is rotatably attached to the inner ring via a rolling element. The second roller 55 is fixed by being fitted onto the outer peripheral surface of the outer ring, and as a result, is fixed rotatably with respect to the second shaft portion 41. The first nut 43 is fastened to the other end portion of the second shaft portion 41 in a state where the second roller 55 is fixed to the outer ring. Thereby, the separation of the rolling bearing 42 with respect to the second shaft portion 41 is prevented. The main body 10 is fixed to the elevator wire rope at two locations spaced in the Z direction using U bolts 5 shown in FIG. The fixing structure using the U bolt 5 will be described in detail later.

  Next, the structure of the detachment prevention plate 60 for the jig 1 will be described. FIG. 4 is a front view of the detachment prevention plate 60 of the jig 1. FIG. 5 is a view including a side view of the detachment prevention plate 60, and is a view for explaining attachment of the detachment prevention plate 60. The detachment prevention plate 60 is an integral elongate plate made of metal or hard resin. As shown in FIG. 4, the detachment prevention plate 60 includes a long flat plate portion 61, a first inclined portion 62, and a second inclined portion 63, and the first inclined portion 62 is a longitudinal direction of the flat plate portion 61. The second inclined portion 63 is connected to the other end portion in the longitudinal direction of the flat plate portion 61.

  As shown in FIG. 4, the flat plate portion 61 has one or more long holes extending in the Z direction. For example, in the embodiment shown in FIG. 4, the flat plate portion 61 includes two long holes 61 a and 61 b that are spaced apart from each other in the Z direction and extend in the Z direction. 61 is located on one side in the Z direction, and the other long hole 61 b is located on the other side in the Z direction of the flat plate portion 61. In addition, each of the long holes 61a and 61b is disposed at the central portion of the flat plate portion 11 with respect to the Y direction.

  As shown in FIG. 2, the first inclined portion 62 is inclined at an acute angle θ1 with respect to the flat plate portion 61 so as to move away from the flat plate portion 61 as it goes to one side in the extending direction of the flat plate portion 61. The second inclined portion 63 is inclined at an acute angle θ2 with respect to the flat plate portion 61 so as to move away from the flat plate portion 61 as it goes to the other side in the extending direction of the flat plate portion 61. The first inclined portion 62 and the second inclined portion 63 are inclined to the same side in the thickness direction of the flat plate portion 61.

  The detachment prevention plate 60 is fixed to the main body 10 as follows. Specifically, as shown in FIG. 1, the first shaft portion 31 has a screw hole 37 at the end on the other side in the X direction, and the second shaft portion 41 has a screw hole 47 at the end on the other side in the X direction. Have As shown in FIG. 5, the shaft portion of the bolt 67 is inserted into the elongated hole 61a from the inclined side of the inclined portions 62, 63 in the thickness direction of the flat plate portion 61 in the direction indicated by the arrow A, and the elongated hole 61a is further inserted. The passed shaft portion tip side is tightened into the screw hole 37 of the first shaft portion 31. Similarly, the shaft portion of the bolt 68 is inserted into the long hole 61b from the inclined side of the inclined portions 62 and 63 in the thickness direction of the flat plate portion 61 in the direction indicated by the arrow B, and further passed through the long hole 61a. The tip end side of the shaft portion is tightened into the screw hole 47 of the second shaft portion 41. The detachment preventing plate 60 is fixed to the shaft portions 31 and 41 by tightening the bolts 67 and 68.

  Next, fixing of the jig 1 to the wire rope 7 will be described. The jig 1 is fixed to a wire rope 7 extending in the vertical direction. 6 to 11 are diagrams illustrating an example of a procedure for fixing the jig 1 to the wire rope 7 and fixing the cable winding 8 to the jig 1. 6 is a side view of the attachment structure of the jig 1 to the wire rope 7, and FIG. 7 is a front view of the attachment structure shown in FIG. First, referring to FIG. 6 and FIG. 7, after the U bolt 5 (see also FIG. 3) is arranged substantially parallel to the horizontal plane, a part of the wire rope 7 is accommodated in the internal space of the U bolt 5. Thereafter, the two end portions 5 a of the U bolt 5 are inserted into the U bolt mounting holes 12 c (see FIG. 1) of the first L-shaped portion 12, and the nut 19 is inserted into the male screw provided at each end portion 5 a of the U bolt 5. Tighten. In this way, the Z-direction extending portion 12 b of the first L-shaped portion 12 is fixed to the wire rope 7 using the U bolt 5 and the two nuts 19. As shown in FIG. 8, that is, a front view of a part of the jig showing the entire attachment structure of the jig 1, the first and second L-shaped portions 12 and 13 are attached to the wire rope 7 using the U bolt 5. Is executed in the same manner at both ends of the jig 1 in the Z direction, and the jig 1 is fixed to the wire rope 7 at two locations. The first and second L-shaped parts 12 and 13, the two U bolts 5, and the four nuts 19 constitute a fixing part 29 of the jig 1. According to the present embodiment, the main body 10 of the jig 1 is fixed to the wire rope 7 by using the U bolt 5 and the two nuts 19, so that the jig 1 is simply fixed to the wire rope 7 with a simple configuration. it can. In the example shown in FIGS. 6 to 8, the plate member 20 in a state where the roller mounting portions 30 and 40 and the rollers 50 and 55 are temporarily fixed is fixed to the wire rope 7. However, the plate member 20 may be fixed to the wire rope 7 in a state where the roller attachment portions 30 and 40 and the rollers 50 and 55 are not fixed.

  Next, as shown in FIG. 9, the position adjustment of the attachment positions of the roller attachment portions 30 and 40 with respect to the plate member 20 is performed. Specifically, first, the rollers 50 and 55 are fixed to the roller mounting portions 30 and 40. Further, the diameter (inner diameter) a (see FIG. 10) of the cable winding 8 (see FIG. 10), which is a wound cable, is roughly measured using a ruler or the like. Then, the distance b (see FIG. 9) from the one end in the Z direction of the first roller 50 to the other end in the Z direction of the second roller 55 is slightly smaller than the inner diameter a of the cable winding 8. The first roller mounting portion 30 is fixed to the long hole 11a, and the second roller mounting portion 40 is fixed to the long hole 11b. The roller attachment portions 30 and 40 may be fixed to the long holes 11 a and 11 b before the plate member 20 is fixed to the wire rope 7.

  Subsequently, as shown in FIG. 10, the cable winding 8 is attached so as to span the first and second rollers 50 and 55. If the cable winding 8 has a large X-direction dimension and a part of the cable winding 8 protrudes from the first and second rollers 50 and 55 in the X-direction, the cable winding 8 has a larger inner diameter and the X-direction. Rewind so that the dimensions are smaller. Alternatively, the jig 1 may include a set of a plurality of roller mounting portions 30 and 40 and rollers 50 and 55, and the set of the plurality of roller mounting portions 30 and 40 and rollers 50 and 55 has an axial length. May be different. Then, a set of roller mounting portions 30 and 40 and rollers 50 and 55 having an appropriate axial length corresponding to the X-direction dimension of the cable winding 8 may be fixed to the plate member 20. In the example shown in FIG. 10, the drawing position of the cable 9 in the cable winding 8 is on the lower side. However, when workability is improved, the drawing position of the cable 9 in the cable winding 8 is set on the upper side. Good.

  Finally, as shown in FIG. 11, the detachment prevention plate 60 is fixed to the shaft portions 31 and 41 of the roller mounting portions 30 and 40 by the method described above. As shown in FIG. 11, fixing of the jig 1 to the wire rope 7 and fixing of the cable winding 8 to the jig 1 are performed by a single worker 3 in a space 6 on the cage 4 in the cage 4. After fixing the jig 1 and the cable winding 8 appropriately, the worker 3 can perform the operation by simply pulling out the cable 9 from the cable winding 8 while correcting the twist. When the operator 3 pulls out the cable 9 from the cable winding 8 in the direction of arrow C, the cable winding 8 rotates in the direction indicated by arrow D. By this rotation, the cable 9 can be smoothly pulled out from the cable winding 8. FIG. 11 shows a state in which the cable 9 has a main cable 9a and one branch cable 9b branched from the main cable 9a. However, the cable 9 may have a plurality of branch cables 9b for each floor, and the plurality of branch cables 9b can be used for, for example, a landing push button, a landing door switch, a landing display, and a power supply unit that performs control. Electric power may be supplied.

  As mentioned above, according to the said 1st Embodiment, after fixing the fixing | fixed part 29 of the jig | tool 1 to the wire rope 7, the cable winding 8 by which one end part was electrically connected to the power receiving apparatus is a 1st hook part. And can be hooked on the second rollers 50 and 55. Therefore, the worker can pull out the other end side of the cable winding 8 sequentially downward by simply pulling the other end side of the cable winding 8 hung on the hooking portion downward. Therefore, one worker on the cage can sequentially pull out the other end side of the cable winding 8 and send it out to the lower side while correcting the twist of the drawn cable 9, and the jig 1 is not used. In this comparison, the replacement work of the cable 9 can be performed by one person and remarkably easily.

  The hook portion includes first and second rollers 50 and 55 that are rotatably attached to the roller attachment portions 30 and 40 that are stationary with respect to the fixed portion 29. Therefore, the cable winding 8 can be attached so as to span the first and second rollers 50 and 55, and when the cable 9 is pulled out from the cable winding 8, the first and second rollers 50 and 55 are rotated. Can do. Therefore, the cable 9 can be pulled out from the cable winding 8 remarkably easily and smoothly.

  Further, the flat plate portion 11 has one or more long holes 11a and 11b extending in the longitudinal direction, and the first attachment portion 38 of the first roller attachment portion 30 is attached to the long hole 11a, and the second roller attachment The second attachment portion 48 of the portion 40 is attached to the long hole 11b with a space in the Z direction with respect to the first attachment portion 38. Therefore, the attachment positions of the shaft portions 31 and 41 with respect to the flat plate portion 11 can be freely changed according to the diameter of the cable winding 8. Therefore, the cable winding 8 having any diameter can be attached to the first roller 50 and the second roller 55 without any gap. As a result, the cable 9 can be smoothly pulled out from the cable winding 8 with any diameter of the cable winding 8, and the versatility of the jig 1 can be enhanced.

  Further, since the jig 1 is provided with a detachment prevention plate 60 for preventing the cable winding 8 from coming off from the first and second rollers 50 and 55, the cable winding 8 is not detached during the operation, and the operation is safe. And it can be executed quickly.

  Furthermore, since the cable 9 has the main cable 9a and the branch cable 9b branched from the main cable 9a, when all the disconnection prevention plates 60 extend in the vertical direction, when the cable winding 8 is rotated, The cable winding 8 is likely to be caught on the detachment prevention plate 60. On the other hand, according to the above configuration, the detachment prevention plate 60 has the inclined portions 62 and 63 that move away from the flat plate portion 61 toward the ends at both ends in the extending direction. Therefore, the cable portion that is blown away from the flat plate portion 61 during the rotation of the cable winding 8 can escape to the space generated by the formation of the inclined portions 62 and 63. Therefore, the cable 9 can be restrained or prevented from being caught with respect to the detachment prevention plate 60 when the cable winding 8 is rotated, and the rotation of the cable winding 8 can be executed more smoothly.

  In the first embodiment, the flat plate portion 11 has one or more long holes 11a and 11b extending in the longitudinal direction, and the first and second roller mounting portions 30 and 40 are formed in the long holes 11a and 11b. The case where the fixed position is variably attached has been described. However, the flat plate portion may not have a long hole, and the shaft portions of the first and second roller mounting portions may be formed integrally with the flat plate portion. Or you may provide two or more screw holes in the flat plate part at intervals in the Z direction. Then, the first and second roller mounting portions can be mounted by tightening the male screw provided on the outer peripheral surface of one end portion of each shaft portion of the first and second roller mounting portions into one of the screw holes of the flat plate portion. The part may be fixed to the flat plate part.

(Second Embodiment)
Next, the jig | tool 101 which concerns on 2nd Embodiment is demonstrated using FIGS. In the second embodiment, the same reference numerals as those in the first embodiment are assigned to the same components as those in the first embodiment, and the description thereof is omitted. In the second embodiment, descriptions of the same effects and modifications as in the first embodiment are omitted. In the second embodiment, the X direction indicates the extending direction of the rollers 160 and 195 described below, the Z direction indicates the height direction of the jig 101, and the Y direction indicates the X direction and the Z direction. The orthogonal direction is shown. Also in the second embodiment, the X direction, the Y direction, and the Z direction are orthogonal to each other.

  12 and 13 are views for explaining the jig 101 of the second embodiment, and FIG. 12 is a side view of the first jig 110 of the jig 101 as viewed from the side. 13 is a side view when the second jig 180 of the jig 101 is viewed from the side surface.

  With reference to FIGS. 12 and 13, the jig 101 includes a first jig 110 and a second jig 180. The first jig 110 and the second jig 180 are attached to the wire rope 7 extending in the vertical direction. The first jig 110 is fixed to the upper side of the second jig 180 with the second jig 180 spaced from the second jig 180 in the Z direction. As shown in FIGS. 12 and 13, the second jig 180 is different from the first jig 110 only in the inclination direction of the inclined portion 182 of the detachment preventing portion 190. The configuration of the second jig 180 will be briefly described after the configuration of the first jig 110 is described.

  As shown in FIG. 12, the first jig 110 includes a fixing part 120, a roller attachment part 140, and a roller 160. The fixing portion 120 includes a wedge chamber defining member 121 and a wedge 126. The wedge chamber defining member 121 includes a main body portion 122 having a U-shaped cross section, a hinge 123, and a door portion 124 as shown in FIGS. The door part 124 is fixed to a side wall part 122b located on one side in the Y direction of the main body part 122 via a hinge 123, and opens and closes an opening 128 on one side in the X direction of the main body part 122. As shown in FIG. 14, the wire rope 7 is accommodated in a U-shaped space of the main body 122 with the door 124 opened, and then the door 124 is closed as shown in FIG. 15.

  A screw hole 122d is provided in the side wall portion 122c located on the other side of the main body portion 122 in the Y direction. As shown in FIG. 15, the door portion 124 has an attachment portion 129 that covers the X-direction front end side of the side wall portion 122c from the outside in a state where the door portion 124 is closed. The attachment portion 129 has a screw hole 129a in a portion overlapping with the screw hole 122d when viewed from the Y direction in a state where the door portion 124 is closed. When the screw 159 is tightened into the screw hole 129a and the screw hole 122d, the attachment portion 129 is fixed to the side wall portion 122c, and the main body portion 122 and the door portion 124 define the wedge insertion chamber 131.

  As shown in FIG. 12, the wedge insertion chamber 131 penetrates in the Z direction. The wedge 126 is pressed by hand, and the pulling portion 137 provided on one side in the Z direction of the main body 122 (the lower side in the vertical direction when the first jig 110 is installed) is pulled downward. By this tension, the wedge 126 is inserted between the inner surface 177 of the wedge insertion chamber 131 and a part of the wire rope 7, and a part of the wire rope 7 is not moved by frictional force with respect to the inner surface 177 of the wedge insertion chamber 131. It becomes possible. In this way, the fixing part 120 is fixed to the wire rope 7.

  The roller mounting part 140 has a structure similar to that of the first roller mounting part 30. The main body portion 122 has a flat plate portion 122a disposed substantially parallel to the YZ plane. The roller mounting portion 140 is different from the first roller mounting portion 30 only in that the shaft portion 141 is fixed to the flat plate portion 122a so as not to be detached by welding or the like and is configured integrally with the flat plate portion 122a. The roller 160 is externally fitted and fixed to the outer ring of a rolling bearing (not shown) of the roller mounting portion 140.

  The first jig 110 further includes a detachment prevention unit 150. The detachment prevention unit 150 includes a flat plate portion 151 and an inclined portion 152. The inclined portion 152 extends from the plate end portion of the flat plate portion 151 to be inclined to the flat plate portion 151. The flat plate portion 151 and the shaft portion 141 have screw holes. In a state where the extending direction of the flat plate portion 151 coincides with the height direction of the wedge chamber defining member 121, the bolt 155 is tightened into the screw hole of the flat plate portion 151 and the screw hole of the shaft portion 141. In this way, the detachment preventing portion 150 is attached to the roller attaching portion 140. When the first jig 110 is appropriately fixed to the wire rope 7, the inclined portion 152 extends away from the wedge chamber defining member 121 in the X direction as it goes upward in the Z direction.

  In the second jig 180, the detachment preventing portion 190 is provided on the shaft portion 192 of the roller mounting portion 191 so that the inclined portion 182 extends away from the wedge chamber defining member 121 in the X direction as it goes downward in the Z direction. It is different from the first jig 110 in that it is attached. A cable winding (not shown) is wound around the roller 160 of the first jig 110 and the roller 195 of the second jig 180. In this state, the first jig 110 is appropriately fixed to the wire rope 7. Thereafter, the second jig 180 is moved downward until the cable winding is stretched. When the second jig 180 is fixed to the wire rope 7 with the cable winding stretched, the installation of the jig 101 and the cable winding on the wire rope 7 is completed.

  According to the second embodiment, the wedge 126 makes the wire rope 7 immovable with a frictional force with respect to the inner surface of the wedge insertion chamber 131 by the wedge 126, so that the static frictional force acting on the wire rope 7 with respect to the fixed portion 120 The jig 101 can be more securely fixed to the wire rope 7. Moreover, since the roller attaching part 140 is comprised integrally with the fixing | fixed part 120, the jig | tool 101 can be comprised compactly. In addition, since the jig 101 has the detachment prevention portions 150 and 190 that prevent the jig 101 from being detached from the rollers 160 and 195, the cable winding is not detached from the rollers 160 and 195 during the operation, and the operation is executed safely and quickly. it can.

  In the second embodiment, the case where the jig 101 includes the first jig 110 and the second jig 180 has been described. However, the jig may be configured by only the first jig 110. Moreover, although the case where the detachment prevention portions 150 and 190 are fixed to the shaft portions 141 and 192 of the roller attachment portions 140 and 191 has been described, the detachment prevention portion may be configured integrally with the shaft portion of the roller attachment portion. Good.

  Further, as described at the beginning of the examples, a modification may be constructed by combining a part of the jig 1 of the first embodiment and a part of the jig 101 of the second embodiment. . For example, instead of fixing the detachment prevention plate 60 to the shaft parts 31 and 41 of the first embodiment, the detachment prevention parts 150 and 190 described in the second embodiment may be fixed. Alternatively, the shaft portions 31 and 41 of the first embodiment and the detachment preventing portions 150 and 190 of the second embodiment may be integrated.

  According to this modification, since there is a gap between the detachment prevention unit 150 and the detachment prevention unit 190, the material cost of the detachment prevention mechanism can be reduced compared to the case where the integral detachment prevention plate 60 is employed. The jig 101 can be reduced in weight. Further, when the shaft portions 31 and 41 of the first embodiment and the detachment preventing portions 150 and 190 of the second embodiment are integrated, the cable winding can be prevented from being detached from the jig. Can be easily mounted on the wire rope.

  Also, unlike the first and second embodiments, the jig does not have a detachment prevention portion or a detachment prevention plate that prevents the cable winding from detaching from the hooking portion, and an inclined portion that reduces the catching of the cable winding. May be. Moreover, the jig does not need to have a detachment prevention portion or a detachment prevention plate that prevents the cable winding from being detached from the hook portion. Further, the hooking portion may include only one roller, or may include three or more rollers. The hook portion may not have a rotatable roller on the shaft portion, and the hook portion is, for example, one or more cylindrical shaft portions that protrude in the horizontal direction in a state where a jig is properly installed. It may be constituted by. In this case, the detachment preventing portion may be fixed or integrally formed with at least one of the one or more shaft portions, and the detachment preventing portion may or may not have an inclined portion. May be.

  DESCRIPTION OF SYMBOLS 1,101 Jig, 7 Wire rope, 8 Cable winding, 9 Cable, 11 Flat plate part, 12 1st L-shaped part, 12b, 13b Z direction extension part, 12c, 13c U bolt attachment hole, 13 2nd L shape 11a, 11b oblong hole, 19 nut, 29, 120 fixing part, 30 first roller mounting part, 31 first shaft part, 38 first mounting part, 40 second roller mounting part, 41 second shaft part, 48 Second mounting portion, 50 first roller, 55 second roller, 60 slip-off prevention plate, 62 first inclined portion, 63 second inclined portion, 121 wedge chamber defining member, 126 wedge, 131 wedge insertion chamber, 141, 192 shaft Part, 150,190 detachment prevention part, 152,182 inclined part, 160,195 roller, 177 inner surface of wedge insertion chamber.

Claims (12)

A cable drawing jig for attaching a cable winding, which is a wound cable, to an elevator wire rope so that the cable can be pulled out from the cable winding,
A fixing part fixed to the wire rope;
A hook for hooking the cable winding;
A cable drawing jig.   The cable drawing jig according to claim 1, further comprising a detachment preventing portion that prevents the cable winding from being detached from the hook portion. The hook portion includes a first roller and a second roller having an outer peripheral surface on which the cable winding is hung,
Furthermore, a long flat plate part,
A first roller mounting portion including a first shaft portion extending substantially parallel to the normal line direction from the flat plate portion, the first roller being rotatably mounted;
The second roller is rotatable, including a second shaft portion that is spaced apart from the first shaft portion with respect to the longitudinal direction of the flat plate portion and extends substantially parallel to the normal direction from the flat plate portion. A second roller attachment portion attached to
The cable drawing jig according to claim 1, wherein the cable winding is rotatably attached so as to straddle the first roller and the second roller. The flat plate portion has one or more long holes extending in the longitudinal direction;
The first roller attachment portion includes a first attachment portion that includes one end portion of the first shaft portion and is attached to the elongated hole.
The cable drawing jig according to claim 3, wherein the second roller attachment portion includes a second attachment portion that includes one end portion of the second shaft portion and is attached to the elongated hole.   The first shaft portion is attached to an end portion of the second shaft portion opposite to the flat plate portion and an end portion of the second shaft portion opposite to the flat plate portion, and the cable winding is connected to the first roller and the second roller. The jig for cable drawing | extracting of Claim 3 or 4 provided with the integral disconnection prevention board which prevents that it remove | deviates from. The detachment prevention plate is configured by an elongated plate, and is opposed to the flat plate portion with an interval in the extending direction of the first shaft portion,
The cable pulling jig according to claim 5, wherein the detachment prevention plate has inclined portions that are inclined in a direction away from the flat plate portion toward both ends in the extending direction. A first disengagement preventing portion configured integrally with an end portion of the first shaft portion opposite to the flat plate portion, and preventing the cable winding from coming off from the first roller;
5. A second detachment preventing portion configured integrally with an end portion of the second shaft portion opposite to the flat plate portion to prevent the cable winding from being detached from the second roller. The cable drawing jig as described in 1.   The first detachment prevention part has an inclined part that inclines in a direction away from the flat plate part as going to the side opposite to the second detachment prevention part side in the longitudinal direction, and the second detachment prevention part is The cable drawing jig according to claim 7, further comprising an inclined portion that inclines in a direction away from the flat plate portion as it goes to a side opposite to the first detachment preventing portion side in the longitudinal direction. The fixing portion includes an L-shaped plate portion that is connected to each of both ends in the longitudinal direction of the flat plate portion and has a substantially L-shaped side view,
The L-shaped plate portion has a mounting plate portion that is disposed substantially parallel to the flat plate portion and provided with a U-bolt mounting hole.
The fixing portion protrudes from the mounting plate portion, a U bolt in which both ends are inserted into a U bolt mounting hole in a state where a part of the wire rope is accommodated in a U-shaped space, and the U bolt mounting hole. The cable drawing jig according to any one of claims 3 to 8, further comprising nuts that are tightened into the both ends of the U-bolt. The fixing portion has a wedge chamber and a wedge chamber defining member that covers a part of the wire rope over the entire circumference and defines a wedge insertion chamber into which the wedge is inserted,
The wedge is inserted between an inner surface of the wedge insertion chamber and a part of the wire rope, and makes a part of the wire rope immovable with a frictional force with respect to the inner surface of the wedge insertion chamber. The jig for pulling out a cable according to 1.   The cable pulling jig according to claim 10, wherein the hook portion includes a roller rotatably fixed to each of the one or more shaft portions protruding from the outer surface of the wedge chamber defining member.   The end of the at least one shaft portion opposite to the wedge chamber defining member side is fixed or integrally formed, and the cable winding is detached from the roller fixed to the at least one shaft portion. The cable drawing jig according to claim 11, further comprising a detachment preventing portion that prevents the detachment.

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