JP2015220898A - Cable laying device and cable laying method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify laying work of a cable drawn from a cable drum.SOLUTION: A cable laying device 100 includes: a tractive traveller 120 to which a drawing end of a cable K is fixed in drawing and laying the cable K from a cable drum KD, and which travels along a cable laying track to an end point of the cable laying track while drawing the cable; a plurality of cable pedestal travellers 200 which are provided with cable pedestals 240 on an upper surface thereof for receiving the cable K drawn by the tractive traveller 120 in a longitudinal direction, and are driven to travel along the cable laying track. One of the cable pedestal travellers 200 is joined to the tractive traveller 120 and fed along the cable track with the cable K received by the cable pedestals 240. The remaining cable pedestal travellers 200 are joined to the preceding cable pedestal traveller 200, receive the cable K on the cable pedestals 240, and are successively fed along the cable track.

Description

  The present invention relates to a cable laying device and a cable laying method.

  The cable is indispensable for power supply or signal transmission, and is often used as an optical cable having an optical fiber as a light guide in addition to an electric cable having a body having a highly conductive metal such as copper. Such cables are laid on the outside floors of factories and large-scale stores. In laying the cable, the cable is pulled out from the cable drum around which the cable is wound, and the cable is continuously pulled out so that the cable follows the track of laying. A method of performing cable laying with such cable drawing using a plurality of annular supports has been proposed (for example, Patent Document 1).

JP 2009-201308 A

  In the technique proposed in Patent Document 1, it is necessary to insert a cable into each of a plurality of annular supports required for cable laying. Further, after laying the cables, it is necessary to release the locks of the respective annular supports and take out the cables from the annular supports. For these reasons, a cable laying method that requires simpler work has been requested.

  In order to achieve at least a part of the problems described above, the present invention can be implemented as the following forms.

  (1) According to one aspect of the present invention, a cable laying device is provided. This cable laying device is a cable laying device that draws and lays a cable from a cable drum around which the cable is wound. The cable laying device has a cable drawing end fixed and travels to the cable laying end point. A pulling traveling body that performs drawing, and a cable pedestal that receives the cable drawn by the towing traveling body in the longitudinal direction on the upper surface, and a plurality of cable pedestal traveling bodies that are driven along a cable laying locus, One of the plurality of cable pedestal traveling bodies is connected to the traction traveling body in a state where the cable pedestal receives the cable, and the remaining cable pedestal traveling bodies are connected to the cable pedestal traveling body that travels in advance. The cables are sequentially connected to the cable base while receiving the cables.

  In the cable laying device of the above form, when laying the cable, the cable drawn with the traveling of the towed traveling body is placed on the cable pedestal of the cable pedestal traveling body from above, and the cable pedestal traveling body having received the cable is pulled. Alternatively, it is sufficient to connect to a cable pedestal traveling body that travels in advance and sequentially send it out along the cable trajectory. Moreover, after laying the cable, it is sufficient to drop the cable on the cable pedestal of the cable pedestal traveling body as it is. Therefore, according to the cable laying device of this embodiment, it is possible to easily perform the laying work of the cable drawn from the cable drum.

  (2) In the cable laying device according to the above aspect, the traction traveling body may self-run along the cable laying locus. By doing so, the work of laying the cable drawn from the cable drum becomes easier.

  (3) In the cable laying device according to any one of the above forms, the cable pedestal traveling body includes a traveling body main body that supports the cable pedestal, and a belt-like endless belt having an endless track rotatably held in the traveling body main body. A loop holder for holding the belt-like endless belt in a loop shape along the longitudinal direction of the cable received by the cable base, and an outer surface of the belt-like endless belt so as to divide and cover the outer surface of the belt-like endless belt. A plurality of enclosures fixed to the surface, and the plurality of enclosures are caulked and fixed to the outer surface of the band-like endless belt such that caulking ridges are formed on the outer surface of the band-like endless belt. You may do it. In this way, the belt-like endless belt of the endless track is more reliably rotated by the caulking ridges of the plurality of enclosures fixed to the outer surface of the belt-like endless belt. Thus, the cable laying can be stabilized.

  (4) In the cable laying device according to the above aspect, the cable pedestal traveling body includes a traveling correction mechanism for correcting the traveling locus of the cable pedestal follower to follow the cable locus on the traveling body main body. You may do it. If it carries out like this, driving | running | working along the cable-laying locus | trajectory of a cable base traveling body can be stabilized.

  (5) According to another aspect of the present invention, a cable laying method is provided. This cable laying method is a cable laying method in which a cable is pulled out and laid from a cable drum around which the cable is wound, and a cable pulling end that runs along a cable laying locus is fixed, A cable that travels to the end of the cable laying trajectory, pulls the cable from the cable drum, and has a cable pedestal for receiving the cable in the longitudinal direction on the upper surface, and is driven along the cable laying trajectory. The pedestal traveling body is connected to the traction traveling body in a state where the cable is received by the cable pedestal, and is sent out along the cable trajectory, and the cable pedestal traveling body travels a plurality of the cable pedestal traveling bodies in advance. To the cable pedestal to receive the cable. Sequentially sends out along the. According to the cable laying method of this form, the cable laying work drawn from the cable drum can be easily performed.

  The present invention can be realized in various forms, for example, in the form of a cable pedestal traveling body used in a cable laying device.

It is explanatory drawing which shows schematically the cable laying apparatus 100 of embodiment of this invention. It is a schematic perspective view which shows the cable base traveling body 200 and the mode of the connection. It is a schematic perspective view which shows the cable base traveling body 200 alone. It is explanatory drawing which shows the cable base traveling body 200 seeing from the axial direction of the cable K. FIG. It is explanatory drawing which shows the cable base traveling body 200 by planar view. 3 is an exploded perspective view of a cable pedestal traveling body 200. FIG. It is explanatory drawing which shows the axial support structure of the strip | belt-shaped endless belt 214 in the cross sectional view. It is explanatory drawing which shows the relationship between the cable base traveling body 200 which interposed the strip | belt-shaped endless belt 214, and the laying rail 110. FIG. It is explanatory drawing which shows the mode of the 1st operation | work of cable laying. It is explanatory drawing which shows the mode of the sequential operation | work of cable laying. It is explanatory drawing which shows the cable laying apparatus 100 which uses the laying rail 110 as an accessory part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view schematically showing a cable laying device 100 according to an embodiment of the present invention. As shown in the figure, the cable laying device 100 according to the present embodiment is a device that draws and lays the cable K from the cable drum KD around which the cable K is wound, and includes a towing traveling body 120 and a cable pedestal traveling body 200. The towing vehicle 120 includes drive wheels 122 and a cable gripping mechanism 124 that are electrically driven. In FIG. 1, the towing vehicle 120 is located at the end of the installation track of the installed rail 110 so as to form a cable installation track on the facility floor F of the cable installation target facility. Located in the vicinity of the drum KD. Then, when laying the cable, the towing vehicle 120 grips the cable end by the cable gripping mechanism 124, and self-travels to the end point along the cable laying track of the laying rail 110 by the driving wheel 122 while gripping the cable. . Since the cable drum KD is rotatably held by the drum holder Dh, the cable K is pulled out from the cable drum KD along the cable laying locus by the self-running of the traction traveling body 120 along the cable laying locus.

  2 is a schematic perspective view showing a cable pedestal traveling body 200 and its connection state, FIG. 3 is a schematic perspective view showing the cable pedestal traveling body 200 alone, and FIG. 4 is a cable pedestal traveling body as viewed from the axial direction of the cable K. FIG. 5 is an explanatory view showing the cable base traveling body 200 in plan view. A plurality of cable pedestal traveling bodies 200 are prepared, and are connected to the preceding traction traveling body 120 or the cable pedestal traveling body 200 by a connecting wire 130 having a predetermined length. The cable pedestal traveling body 200 is configured to be driven along the cable laying locus of the laying rail 110, and receives the cable K at the cable pedestal 240 provided on the upper surface of the traveling body main body 210. As shown in FIG. 4, the cable base 240 has an arc shape that follows the circular shape of the cable K, is supported by the traveling body main body 210, and receives the cable K in the longitudinal direction. Accordingly, each cable pedestal traveling body 200 follows the cable laying locus along with the self-running of the traction traveling body 120 along the cable laying locus of the laying rail 110 while receiving the cable K at the cable pedestal 202. To follow.

  In addition, the cable pedestal traveling body 200 includes guide rollers 230 on the left and right sides of the traveling body main body 210 in FIG. 4, and wire engagement arms 212 f and 212 b on the front and rear ends of the traveling body main body 210 in FIG. 3. The guide roller 230 is rotatably held by a holding arm 232 extending from the traveling body main body 210. Therefore, the traveling of the cable pedestal traveling body 200 is corrected to follow the cable laying track of the laying rail 110 by the left and right guide rollers 230 of the traveling body main body 210 coming into contact with the side surfaces of the laying rail 110 and following rotation. . Next, the structure which brings about the driven driving | running | working of the cable base traveling body 200 is demonstrated.

  6 is an exploded perspective view of the cable pedestal traveling body 200, FIG. 7 is an explanatory view showing a shaft support structure of the belt-like endless belt 214, and FIG. 8 is a diagram showing the cable pedestal traveling body 200 with the belt-like endless belt 214 interposed therebetween. It is explanatory drawing which shows the relationship with the installation rail.

  As shown in the figure, the cable pedestal traveling body 200 constitutes a traveling body main body 210 having a lower end opened by caulking and connecting the opposing side body 213, front body 211f, and rear body 211b. The cable pedestal 240 is supported by the traveling body main body 210 at an edge 241 extending from the arc end. The guide roller 230 is rotatably supported by the holding arm 232, and the holding arm 232 is fixed to the side body 213 by caulking or welding to be connected to the traveling body main body 210, as described above. So as to correct running.

  In addition, the cable pedestal traveling body 200 includes a belt-like endless belt 214, a plurality of surrounding bodies 215, a holding shaft 216, a fixed shaft 217, a belt holding roller 218, a bearing 219, and a bearing receiver 220, These parts constitute a driven traveling mechanism. The belt-like endless belt 214 forms an endless track and includes a plurality of surrounding bodies 215 on the belt outer surface. The surrounding body 215 has a width that allows the belt-like endless belt 214 to be divided into multiple portions in the width direction, and is adjacently installed so as to cover the outer surface of the belt-like endless belt 214. Each of the surrounding bodies 215 is fixed to the outer surface of the belt-like endless belt 214 by two rows of caulking and fixing in the width direction of the belt-like endless belt 214. This caulking-fixed caulking mark 215a is raised on the outer surface of the belt-like endless belt 214, and the tip thereof faces the upper surface of the laying rail 110 as shown in FIG.

  As shown in FIG. 6, three pairs of the holding shaft 216, the fixed shaft 217, the belt holding roller 218, and the like are prepared. The fixed shaft 217 passes through the holding shaft 216 and is fixed to the side body 213 with bolts. The holding shaft 216 rotates forward and backward around the axis of the fixed shaft 217 with the bearing receiver 220 and the holding shaft 216 interposed therebetween. It is made free. The holding shaft 216 is provided with a flange-shaped ring receiver 216W bent at the end portion side, and a belt holding roller 218 is sandwiched and fixed to the ring receiver 216W. This roller fixing is performed as follows. The holding shaft 216 extends the shaft end 216f on the end side from the ring receiver 216W while maintaining the shaft shape, and the belt holding roller 218 is inserted to the ring receiver 216W in this state. Thereafter, the shaft end 216f is bent toward the belt holding roller 218, and the belt holding roller 218 is clamped and fixed. In this way, the holding shaft 216 holding the belt holding roller 218 is held on the side body 213 so as to be rotatable forward and backward around the axis of the fixed shaft 217 as described above. As shown in FIG. 8, the holding shaft 216 includes the belt-like endless belt 214 and the surrounding body 215 inside the traveling body main body 210 of the cable pedestal traveling body 200 at the center and the end side. It is rotatably held by a belt holding roller 218. In this case, since the enclosure 215 has a flat plate shape, the belt holding roller 218 and the bearing 219 on the endless belt end side rotate the belt-like endless belt 214 in the forward and reverse directions at the upper and lower plane starting portions of the belt-like endless belt 214. Hold freely. By such a driven traveling mechanism, the cable pedestal traveling body 200 holds the endless belt 214 having an endless track in the traveling body main body 210 so as to be rotatable forward and backward, and is formed in a strip shape along the longitudinal direction of the cable K received by the cable pedestal 240. The endless belt 214 is held in a loop together with the surrounding body 215.

  Next, how the cable K is laid by the cable laying apparatus 100 described above will be described. FIG. 9 is an explanatory view showing the state of the initial work of cable laying, and FIG. 10 is an explanatory view showing the state of sequential work of cable laying.

  As shown in FIG. 9, in the case of a cable facility, first, the towing vehicle 120 is set on the laying rail 110 on the cable drum KD side. Although this set work is one of the laying work of the workers, the towing traveling body 120 is self-propelled, so it is sufficient to self-propell to the initial work position shown in FIG. After the traveling body is set, the operator grips the cable K at its end by the cable gripping mechanism 124 and connects the first cable base traveling body 200 to the towing traveling body 120 with the connecting wire 130. The cable base traveling body 200 is sent to the laying rail 110. By sending out the cable pedestal traveling body 200, the cable K is received by the cable pedestal 240 and the cable weight is applied to the cable pedestal traveling body 200. Then, the cable pedestal traveling body 200 is pressed toward the upper surface of the laying rail 110 by the cable-like amount and the traveling body weight, so that the caulking located on the upper surface side of the laying rail 110 on the outer surface of the belt-like endless belt 214 is pressed. The mark 215 a engages with the laying rail 110. As a result, the cable pedestal traveling body 200 travels while the belt-like endless belt 214 rotates on an endless track along with the self-running of the traction traveling body 120.

  Next, as shown in FIG. 10, the towed traveling body 120 is self-propelled along the cable laying trajectory of the laying rail 110 by approximately the wire length of the connecting wire 130, and during the self-propelled or once once self-propelled. After the stop, the second cable pedestal traveling body 200 is connected to the first cable pedestal traveling body 200 by the connecting wire 130, and the second cable pedestal traveling body 200 is sent to the laying rail 110. Even in the second cable pedestal traveling body 200, the belt-like endless belt 214 is driven in an endless track as the traction traveling body 120 is self-propelled as described above. Hereinafter, the traveling body connection and delivery shown in FIG. 10 are repeated.

In the cable laying device 100 of the present embodiment having the above-described configuration, only the next worker work is required to lay the cable K wound around the cable drum KD on the facility floor F.
Operation 1: Side set of cable drum KD of towing vehicle 120;
Work 2: Connection of towed traveling body 120 and first cable pedestal traveling body 200, self-running traveling of towed traveling body 120, and delivery of first cable pedestal traveling body 200;
Operation 3: Connection of the first cable pedestal traveling body 200 and the second cable pedestal traveling body 200, self-running traveling of the towed traveling body 120, and delivery of the second cable pedestal traveling body 200;
Operation 4 and after: connection of the necessary number of cable pedestal traveling bodies 200, self-running traveling of the towed traveling body 120, and delivery of the cable pedestal traveling body 200;
Final work: self-running stop of the towed traveling body 120, cable gripping release by the cable gripping mechanism 124, lifting and removal of the cable K from each cable pedestal traveling body 200, and recovery of the cable pedestal traveling body 200;
Other work: Lifting and placing the cable K on the cable base 240 when the drawing position of the cable K from the cable drum KD deviates from the cable laying locus of the laying rail 110 in the plan view of the cable drum KD.

  Therefore, according to the cable laying device 100 of the present embodiment, even if the cable K is set on the cable pedestal traveling body 200 in each of the operations 2 to 4, the cable K is lifted and the information is transferred to the cable pedestal 240. No need to open or close the jig. In addition, in each of the operations after operation 2 to operation 4, after the cable K is placed on the cable base 240, the cable base traveling body 200 that has received the cable is connected to the towed traveling body 120 or the cable base traveling body 200 that travels in advance. It is only necessary to connect with the wire 130 and send them out sequentially along the cable trajectory of the laying rail 110 (see FIGS. 9 to 10). In addition, after the cable is laid, it is sufficient to perform the above-described final work. As a result, according to the cable laying device 100 of the present embodiment, the cable K drawn from the cable drum KD can be easily laid on the facility floor F.

  In the cable laying device 100 of the present embodiment, the traction traveling body 120 is configured to self-run along the cable laying track of the laying rail 110. Therefore, the laying work of the cable K drawn from the cable drum KD can be made simpler.

  In the cable laying device 100 of the present embodiment, a plurality of enclosures 215 are caulked and fixed to a belt-like endless belt 214 that is incorporated in the traveling body main body 210 of the cable pedestal traveling body 200 and is driven to rotate on an endless track, and the caulking marks 215 a The belt-like endless belt 214 was formed so as to protrude on the outer surface side. Therefore, in the cable laying device 100 of the present embodiment, the belt-like endless belt 214 of the endless track can be more reliably rotated by the caulking marks 215a of the plurality of enclosures 215 fixed to the outer surface of the belt-like endless belt 214. . As a result, according to the cable laying device 100 of the present embodiment, the traveling of the cable pedestal traveling body 200 along the cable laying locus of the laying rail 110 can be stabilized, thereby stabilizing the cable laying. You can also.

  In the cable laying device 100 of the present embodiment, guide rollers 230 are provided on the left and right sides of the traveling body main body 210, and the traveling trajectory when the cable pedestal traveling body 200 is driven by the guide rollers 230 is shown on the laying rail 110. Correct to follow the cable trajectory. Therefore, according to the cable laying device 100 of the present embodiment, traveling along the cable laying locus of the cable pedestal traveling body 200 can be further stabilized.

  The present invention is not limited to the above-described embodiment, and can be realized with various configurations without departing from the spirit of the present invention. For example, the technical features of the embodiments corresponding to the technical features in each embodiment described in the summary section of the invention are intended to solve part or all of the above-described problems, or part of the above-described effects. Or, in order to achieve the whole, it is possible to replace or combine as appropriate. Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

  In the above-described embodiment, the belt-like endless belt 214 is held on the traveling body main body 210 by the three pairs of the holding shaft 216, the fixed shaft 217, the belt holding roller 218, the bearing 219, and the like. A configuration may be adopted in which the belt holding roller 218 is held between the opposing side bodies 213 so as to be freely rotated forward and backward.

  In the above-described embodiment, the tow traveling body 120 is self-propelled along the cable laying locus of the laying rail 110, but may be driven by an operator.

  Further, if the cable laying locus is a substantially linear locus, the following may be performed. First, the towing vehicle 120 is provided with a magnetic detection sensor on the front body. In addition, a magnetic tape that magnetically stores information necessary for route guidance such as the traveling direction and the route end point is attached to the facility floor F along the cable laying locus. In this way, the towing vehicle 120 is guided by the magnetic tape and runs straight along the cable laying trajectory, so that the laying rail 110 is not necessary and it becomes simple. Further, the cable pedestal traveling body 200 can also be driven straight following the towed traveling body 120 and the preceding cable pedestal traveling body 200, so that the guide roller 230 is not required and the configuration is simplified.

  In the above-described embodiment, the laying rail 110 already installed on the facility floor F is used. However, the laying rail 110 may be an accessory part of the cable laying device 100. FIG. 11 is an explanatory view showing a cable laying device 100 having the laying rail 110 as an accessory part. As shown in the figure, the cable laying device 100 of this embodiment includes a U-shaped steel bar 110K, and this steel bar 110K is used in place of the laying rail 110 shown in FIG. In this way, by disposing the shape steel 110K on the facility floor F, a cable laying locus of the cable K is formed, so that versatility is enhanced. Further, a plurality of section steels 110K having a predetermined length are prepared, and a curved section steel 110K having a curved shape or a flexible path forming body capable of forming a bending path in an accordion type can be used at the connecting portion. By doing so, the degree of freedom of the cable laying trajectory is increased, so that versatility is further enhanced.

DESCRIPTION OF SYMBOLS 100 ... Cable laying apparatus 110 ... Laying rail 110K ... Shape steel 120 ... Traction traveling body 122 ... Drive wheel 124 ... Cable gripping mechanism 130 ... Connecting wire 200 ... Cable base traveling body 202 ... Cable base 210 ... Traveling body main body 211b ... Rear body 211f ... front body 212b, 212f ... wire engaging arm 213 ... side body 214 ... band-like endless belt 215 ... enclosure 215a ... caulking mark 216 ... holding shaft 216W ... ring receiver 216f ... shaft end 217 ... fixed shaft 218 ... belt holding roller 219 ... Bearing 220 ... Bearing receiver 230 ... Guide roller 232 ... Holding arm 240 ... Cable base 241 ... Edge K ... Cable F ... Facility floor KD ... Cable drum Dh ... Drum holder

Claims (5)

A cable laying device that draws and lays a cable from a cable drum wound with a cable,
A pulling traveling body in which the cable drawing end is fixed and the cable runs from the cable drum to the end point of cable laying, and
A cable pedestal for receiving the cable drawn by the traction traveling body in the longitudinal direction on the upper surface, and a plurality of cable pedestal traveling bodies that follow along the cable laying locus;
One of the plurality of cable pedestal traveling bodies is connected to the traction traveling body in a state where the cable pedestal receives the cable, and the remaining cable pedestal traveling bodies are connected to the cable pedestal traveling body that travels in advance. A cable laying device that is sequentially connected to the cable base while receiving the cable.   The cable laying device according to claim 1, wherein the towing traveling body is self-propelled along the cable laying locus. The cable laying device according to claim 1 or 2,
The cable pedestal traveling body is:
A traveling body main body for supporting the cable pedestal;
A loop holding body for holding a belt-like endless belt of an endless track rotatably in the traveling body body, and holding the belt-like endless belt in a loop shape along the longitudinal direction of the cable received by the cable base;
A plurality of enclosures fixed to the outer surface of the belt-like endless belt so as to divide and cover the outer surface of the belt-like endless belt;
The cable laying device, wherein the plurality of enclosures are caulked and fixed to the outer surface of the belt-like endless belt so that caulking ridges are formed on the outer surface of the belt-like endless belt. The cable laying device according to claim 3,
The cable pedestal traveling body is:
A cable laying device comprising a traveling correction mechanism that corrects a traveling locus of the cable base follower to follow the cable locus on the traveling body main body. A cable laying method in which a cable is drawn from a cable drum wound with a cable and laid,
The cable pulling end is fixed to a pulling traveling body that travels along a cable laying trajectory, the pulling traveling body is traveled to an end point of the cable laying trajectory, and the cable is pulled out from the cable drum,
A cable pedestal traveling body that has a cable pedestal that receives the cable in the longitudinal direction and that is driven along the cable laying locus is connected to the traction traveling body while the cable pedestal receives the cable. , Send along the cable trajectory,
A cable laying method in which a plurality of the cable pedestal traveling bodies are connected to the cable pedestal traveling body that travels in advance, and the cables are received on the cable pedestal and sequentially sent out along the cable trajectory.

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