JP3838698B2 - Laying or carrying device using compressed air - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a laying or carrying device using compressed air. More specifically, the present invention relates to a device for laying an object to be laid such as a cable with compressed air, or a device for handling a flammable substance such as an organic solvent and transporting an object in a place where an electric motor cannot be used with compressed air.
[0002]
[Prior art]
As this type of compressed air laying or transporting device, the present applicant has formed a cut in the longitudinal direction over the entire length of the pipe, and a movable body that can move in the pipe by the compressed air fed into the pipe. A laying or transporting device in which the base end of a wire is connected to a moving body in a pipe and this wire passes through the cut and the object to be laid is connected to the tip located outside the pipe is designated as a designated country in Japan. Including international applications (international application number PCT / JP95 / 00137). In this apparatus, a sealing wire capable of closing a cut is disposed in the pipe over the entire length of the pipe, and a guide groove for guiding the sealing wire is provided in the moving body so as to close the cut when the moving body moves.
[0003]
In the apparatus configured as described above, when the moving body is inserted into the pipe, the wire is taken out of the pipe from the cut, and the object to be laid is connected to the tip of the pipe, and then the compressed body is introduced into the pipe. Is promoted. At this time, the wire whose proximal end is connected to the moving body moves the cut wire from the cut and advances the cut, and after the wire passes, the guide groove guides the seal wire to the cut. The laying object outside the pipe connected to the tip of the wire is pulled by the moving body and laid at a predetermined place. As a result, it can be laid or transported by a small number of people, and the laying or transporting time can be greatly shortened.
[0004]
[Problems to be solved by the invention]
However, in the laying or transporting apparatus using the compressed air, the wire advances the cut while shifting the sealing wire from the cut, so the frictional resistance between the wire, the sealing wire, and the periphery of the cut is large, and the sealing wire or There was a risk that the wire would wear early. Although a method using a suspension plate instead of a wire is also conceivable, in this case, since the suspension plate moves forward while shifting the sealing wire from the cut line, the sealing wire is scraped by the edge of the suspension plate. There was a risk of damage.
An object of the present invention is a laying or transporting device using compressed air that can be laid or transported smoothly and in a short time even if the weight of the laying or transported material is large, without damaging or damaging the sealing wire. Is to provide.
[0005]
[Means for Solving the Problems]
As shown in FIG. 1, the invention according to claim 1 is movable in the pipe 11 by a pipe 11 having a cut 11 a on the lower surface in the longitudinal direction over the entire length, and compressed air inserted into the pipe 11 and fed into the pipe 11. The internal moving body 12 and the upper end connected to the internal moving body 12 in the pipe 11, projecting below the pipe 11 a through the cut line 11 a, and the suspended object 26, 36 or the transported object can be suspended at the lower end. A lowering plate 13, a sealing wire 14 that is disposed in the entire length of the pipe 11 in the pipe 11 and can close the cut 11 a, and a sealing wire 14 that is formed on the internal moving body 12 or the hanging plate and faces the hanging plate 13. The pipe 11 Radial center of pipe And a wire lead-in portion 16g to be drawn into.
In the apparatus according to claim 1, the sealing wire 14 is connected to the pipe 11 by the wire drawing portion 16 g at a position where the hanging plate 13 passes. Radial center of pipe Therefore, the sealing wire 14 is hardly worn or damaged. Further, the cut 11a of the pipe 11 is closed with the sealing wire 14, the sealing wire 14 is inserted into the wire drawing portion 16g, and the suspension plate 13 is passed through the cut 11a, and the internal moving body 12 is inserted into the pipe 11. Is inserted and the object to be laid is connected to the lower end of the suspension plate 13, and then the compressed air is introduced into the pipe 11, the internal moving body 12 is driven, and at the same time, the object to be laid outside the pipe 11 is pulled. Laid.
[0006]
The invention according to claim 2 is the invention according to claim 1, and further, as shown in FIG. 1, a moving shaft 16 in which the internal moving body 12 extends parallel to the axis of the pipe 11, and the inner surface of the pipe 11. And a first rotating body 21 that is rotatably attached to the moving shaft 16 and capable of rolling on the inner bottom surface of the pipe 11. The suspension plate 13 is connected to the lower surface of the moving shaft 16, and the wire drawing portion 16g is formed on the moving shaft 16 or the hanging plate.
In the apparatus according to the second aspect, since the first rotating body 21 rolls on the inner bottom surface of the pipe 11, the internal moving body 12 can smoothly move in the pipe 11. Further, even when the sealing wire 14 is drawn into the pipe 11 by the wire drawing portion 16g and the cut 11a of the pipe 11 is opened, the positions where the cut 11a is opened are the seal portions 17 provided at both ends of the moving shaft 16. , 17, the compressed air introduced into the pipe 11 does not leak at other portions.
[0007]
As shown in FIGS. 15 and 16, the invention according to claim 3 includes a pipe 11 having a notch 11 a on the lower surface in the longitudinal direction over the entire length, and compressed air inserted into the pipe 11 and fed into the pipe 11. An external moving body 91 that is fitted in the pipe 11 and is connected to the internal moving body 12 via a connecting plate 92 that passes through the cut line 11a and that can move together with the internal moving body 12, and an upper end that is external A hanging tool 93 which is fixed to the moving body 91 and can suspend an object to be laid or a conveyed object at the lower end, a sealing wire 14 which is disposed in the pipe 11 along the entire length of the pipe 11 and can close the cut 11a, The sealing wire 14 formed on the moving body 12 or the connecting plate and facing the connecting plate 92 is connected to the pipe 11. Radial center of pipe And a wire lead-in portion 16g to be drawn into.
In the apparatus according to the third aspect, the load of the object to be transported is received by the external moving body 91 and the load of the object to be transported is not applied to the internal moving body 12, so that the internal moving body 12 further smoothly moves inside the pipe 11. I can move.
[0008]
The invention according to claim 4 is the invention according to claim 3, further comprising a moving shaft 16 in which the internal moving body 12 extends parallel to the axis of the pipe 11, as shown in FIGS. A seal portion 17 that is in contact with the inner surface of the pipe 11 so as to keep airtightness and is fixed to both ends of the moving shaft 16, and a first rotating body 21 that is rotatably attached to the moving shaft 16 and can roll on the inner bottom surface of the pipe 11. The pipe 11 is provided with a first rail 101 extending in the longitudinal direction of the pipe 11 at an upper part of the outer surface of the pipe 11 and a second rail 102 extending in the longitudinal direction of the pipe 11 at a lower part of the outer surface of the pipe 11 An outer cylinder 96 whose body 91 has a notch 96a on the upper surface, a second rotating body 112 attached to the outer cylinder 96 and capable of rolling on the upper surface of the first rail 101, and a second rail 102 attached to the outer cylinder 96. Rolling the protruding surface of And a capacity of third rotating member 113, the connecting plate 92 is connected to the lower surface of the moving shaft 16, characterized in that the wire pull portion 16g is formed on the moving shaft 16 or the coupling plate.
In the apparatus according to claim 4, the load of the transported object is received by the first rail 101 via the second rotating body 112, and the load of the transported object is not applied to the internal moving body 12. Can move through the pipe 11 more smoothly. Further, since the third rotating body 113 rolls on the projecting surface of the second rail 102, the outer cylinder 96 does not come off the pipe 11.
[0009]
The invention according to claim 5 is the invention according to claim 1 or 3, and further, as shown in FIG. 5 or FIG. 17, the pipe 11 is connected to the connected pipe 11d and the base end of the connected pipe 11d. A connecting pipe 11e having a tip connected by a connecting pipe 22, and the connecting pipe 22 closes the joint 11f of both pipes 11d and 11e, leaving a cut 11a between the connected pipe 11d and the connecting pipe 11e. It was configured as described above.
In the apparatus according to the fifth aspect, it is possible to prevent the compressed air introduced into the pipe 11 from leaking at the connecting portion between the pipe 11d for connection and the pipe 11e for connection.
[0010]
The invention according to claim 6 is the invention according to claim 5, and as shown in FIG. 5 or FIG. 17, one end of the connection pipe 22 is welded to the connected pipe 11 d or the proximal end of the connection pipe. The first pedestal 31 is provided on the outer surface of the other end of the connection pipe 22, the second pedestal 32 is provided on the outer surface of the end of the connecting pipe 11e or the pipe to be connected, and the first pedestal 31 or the second pedestal is screwed. The base end of the screw 24 is pivotally attached, and the screw 24 is installed between the pedestals 31 and 32 by fastening the tip of the screw 24 to the second pedestal 32 or the first pedestal.
In the apparatus according to the sixth aspect, the connecting portion between the connected pipe 11d and the connecting pipe 11e is brought into close contact with the screw 24, so that the compressed air introduced into the pipe 11 leaks through the connecting portion. Can be prevented more reliably.
[0011]
The invention according to claim 7 is the invention according to claim 1 or 3, characterized in that the laying objects 26 and 36 are cables as shown in FIG.
The invention according to claim 8 is the invention according to claim 7, and as shown in FIGS. 9 and 10, after the first cable 53 is laid on the guide roller 29, the second cable 54 is newly added. A device for laying on the guide roller 29, wherein the second cable 54 is provided at the lower end of the suspension plate 13 or the suspension tool, and engages with the first cable 53 to bring the first cable 53 from above the guide roller 29. The deflecting tool 51 for removing and moving to a predetermined laying position is attached to the hanging plate 13 or the lower end or the vicinity of the lower end of the hanging tool.
In the apparatus according to claim 8, since the second cable 54 is laid on the guide roller 29 while moving the first cable 53 laid on the guide roller 29 from the guide roller 29 to a predetermined laying position, The cables 53 and 54 can be efficiently laid at a predetermined laying position.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 to 4, the pipe 11 is a pipe for propelling jet-pulling, and has a cut 11 a on the lower surface in the longitudinal direction over the entire length of the pipe 11. An internal moving body 12 that can move (jet pull) by compressed air fed into the pipe 11 is inserted into the pipe 11, and the upper end of the suspension plate 13 is connected to the lower surface of the internal moving body 12. . The plate 13 protrudes below the pipe 11 through the cut 11a. Further, a sealing wire 14 made of a rubber wire having a circular cross section capable of closing the cut line 11 a is disposed in the pipe 11 over the entire length of the pipe 11. The cut 11a has a first cut 11b that faces the outer bottom surface of the pipe 11, and a second cut 11c that faces the inner bottom surface of the pipe 11 (FIGS. 2 and 3). The first cut 11b has a width smaller than the outer diameter of the sealing wire 14 and slightly larger than the thickness of the suspension plate 13, and the second cut 11c has a width substantially equal to the outer diameter of the sealing wire 14 or for sealing. The width is slightly larger than the outer diameter of the wire 14, and the lower portion of the sealing wire 14 is accommodated in the second cut 11 c. The cross-sectional shape of the sealing wire is not limited to a circle, and may be an ellipse, a quadrangle, or other polygons. The cross-sectional shape of the second cut may be a shape corresponding to the cross-sectional shape of the lower portion of the sealing wire. Further, the cut may have only the first cut narrower than the outer diameter of the sealing wire without having the second cut, or the depth of the second cut may be substantially the same as the outer diameter of the sealing wire. The whole sealing wire may be formed and accommodated in the second cut. Further, the cut may be formed by machining at the same time as or after the pipe is formed, or by forming a second cut in the pipe and welding a plate having the first cut to the outer bottom surface of the pipe. May be.
[0013]
The internal moving body 12 has a moving shaft 16 extending parallel to the axis of the pipe 11, seal portions 17 and 17 that are in contact with the inner surface of the pipe 11 so as to keep airtight and are fixed to both ends of the moving shaft 16, A first rotating body 21 that is rotatably attached to the shaft 16 and can roll on the inner bottom surface of the pipe 11 is provided. An insertion hole 16 a is formed along the axis of the moving shaft 16, and a pair of seal holding shafts 16 b that close both ends of the insertion hole 16 a and coincide with the axis of the moving shaft 16 at both ends of the moving shaft 16. 16b is fixed. The seal portion 17 includes a disk-shaped cored bar 17a and an elastic body 17b attached to the outer peripheral surface and one side surface of the cored bar 17a. The outer peripheral surface of the elastic body 17b is slidable along the inner surface of the pipe 11 and contacts so as to keep the inner surface of the pipe 11 airtight. Two seal portions 17 are fitted into the seal holding shaft 16b and fixed by screwing a nut 17c to the holding shaft 16b (FIGS. 1 and 4). As the elastic body 17b, soft or hard synthetic rubber, soft plastics, or a sponge or the like is used if the inner surface of the pipe is kept airtight. A guide groove 17d having a shape corresponding to the upper portion of the sealing wire 14 protruding into the pipe 11 is formed at the lower end of the sealing portion 17, that is, the portion facing the sealing wire 14 with the lower portion accommodated in the second cut 11c. The upper portion of the sealing wire 14 is accommodated in the guide groove 17d (FIG. 3). Note that the number of seal portions fitted into the seal holding shaft is not limited to two, and may be one or three or more. In addition, the synthetic rubber and sponge are alternately arranged on the seal part to form a composite plate, and iron plates are placed on both sides of the composite plate, fitted into the seal holding shaft, and fixed by screwing a nut onto this holding shaft. May be.
[0014]
Four first counterbore portions 16c are formed on one lower side surface of the moving shaft 16 at predetermined intervals in the longitudinal direction of the moving shaft 16, and the first counterbore portion on the other lower side surface of the moving shaft 16 is formed. Four second counterbore portions 16d are formed so as to face the portion 16c, and four rotary body holding portions 16e are formed under the moving shaft 16 by forming the first and second counterbore portions 16c and 16d facing each other. (FIGS. 2 and 4). A through hole 16f (FIG. 1) penetrating from the first counterbore part 16c to the second counterbore part 16d is formed in the center of the rotating body holding part 16e. The first rotating body 21 is four needle bearings that are rotatably fitted to the four shafts 18 respectively. The four first rotating bodies 21 are respectively inserted into the four through holes 16f so that the rotating bodies 21 are alternately accommodated in the first and second counterbore portions 16c and 16d. Then, the nut 19 is screwed to be attached to the lower part of the moving shaft 16. The first rotating body 21 is configured such that one outer peripheral edge thereof abuts against the inner bottom surface of the pipe 11 and rolls (FIG. 2). In addition, the number of the 1st rotary body may be 2, 3, or 5 or more, and the 1st rotary body may be inserted in the both ends of the shaft inserted in the through-hole. Moreover, in order to enlarge a contact area with the pipe inner bottom face of a 1st rotary body, you may form in a plane in a pipe inner bottom face. In this case, it is necessary to form the bottom of the elastic body of the seal portion on a plane corresponding to the bottom surface of the pipe.
[0015]
The suspension plate 13 is connected to the moving shaft 16 by welding its upper end to the lower surface of the moving shaft 16, and a locking hole 13a is formed at the lower end of the plate 13 projecting below the pipe 11 (FIG. 1, FIG. 1). 2 and 4). Further, a wire rod drawing portion 16g is formed on the moving shaft 16 (FIG. 1R> 1 and FIG. 2). The wire lead-in portion 16g includes an insertion hole 16a formed in the moving shaft 16, and a pair of communication holes 16h and 16h that extend in directions obliquely upward from the lower ends of both ends of the moving shaft 16 and communicate with the insertion hole 16a. Composed. The sealing wire 14 facing the suspension plate 13 is inserted into the pipe 11 by inserting the sealing wire 14 through the wire drawing portion 16g. Radial center of pipe Configured to retract. In addition, in order to reduce the frictional resistance between the sealing wire and the inner surface of the insertion hole and the communication hole, the inner surface of the insertion hole and the communication hole is coated with a friction reducing material such as fluororesin or is in contact with the sealing wire. You may embed the ball | bowl and roller which can rotate at predetermined intervals in the inner bottom part of an insertion hole and a communicating hole.
[0016]
A plurality of pipes 11 are connected according to the cable laying distance. As shown in FIGS. 5 to 7, the distal end of the coupling pipe 11 e is connected to the proximal end of the coupled pipe 11 d by a connection pipe 22. The connecting pipe 22 is configured to close the joint 11f between the pipes 11d and 11e, leaving the cut 11a between the pipe 11d to be connected and the connecting pipe 11e (FIG. 5). Specifically, the connection pipe 22 has a wide cut 22a having a width wider than the cut 11a over the entire length of the connection pipe 22 (FIG. 6). One end of the connecting pipe 22 is welded to the base end of the connected pipe 11d so that the cut line 11a is positioned at the center of the wide cut line 22a. A first pedestal 31 is provided on the outer surface of the other end of the connection pipe 22, and a second pedestal 32 is provided on the outer surface of the tip of the connection pipe 11e. The first and second pedestals 31 and 32 are each formed in a U shape, and are welded to the outer surface of the connecting pipe 22 and the outer surface of the connecting pipe 11e, respectively. A base end of a screw 24 is pivotally attached to the first pedestal 31 via a pin 23. The screw 24 has such a length that the distal end reaches the second pedestal 32 in a state where the proximal end of the pipe 11d and the distal end of the pipe 11e are connected. In order to connect both the pipes 11d and 11e by the connecting pipe 22, the connecting pipe 11e is inserted into the open end of the connecting pipe 22 welded to the connected pipe 11d. With the pipes 11 d and 11 e connected to each other, the tip of the screw 24 is inserted into the second pedestal 32 and the screw 24 is installed between the first and second pedestals 31 and 32, and then the nut 25 is attached to the tip of the screw 24. Screw together. By tightening the nut 25, the connected pipe 11d and the connecting pipe 11e are brought into close contact with each other, and there is no gap in the joint 11f. A second pedestal may be provided on the outer surface of the other end of the connecting pipe, and a first pedestal on which the base end of the screw is pivotally connected may be provided on the outer surface of the distal end of the connecting pipe.
[0017]
The usage method of the laying apparatus using the compressed air configured as described above will be described with reference to FIGS.
First, a large number of guide rollers 29 are attached to a rack 27 for laying the cable 26 at intervals of about 2 meters from the cable laying start point to the end point via a fixture 28 (FIG. 8). The guide roller 29 is for pulling the cable 26 with a small resistance, and includes a pair of swingable horizontal rollers 29a and 29a and a pair of vertical rollers 29b spaced apart from each other. The horizontal roller 29a and the vertical roller 29b are configured to freely rotate. Next, a large number of pipes 11 are attached along the rack 27 from the cable laying start point to the end point via the pipe holder 33 and the pipe fixture 34. The pipe 11d and the pipe 11e are connected by the connection pipe 22 described above. At this time, all the pipes 11 are laid so that the cut line 11a is the lowest in the cross section of the pipe 11 (FIGS. 1 to 3, 6, and 7).
[0018]
After all the pipes 11 have been laid, the sealing wire 14 is inserted into the wire drawing portion 16g of the internal moving body 12 before being inserted into the pipe 11, and the tip of the sealing wire 14 is connected to one seal of the internal moving body 12. The inner moving body 12 is inserted into the base end of the pipe 11 from the hook side (not shown) provided at the distal end of the holding shaft 16b. At this time, the sealing wire 14 is accommodated in the guide groove 17d of the seal portion 17 and the second cut 11c of the pipe 11, and the suspension plate 13 is inserted into the cut 11a. After grasping the suspension plate 13 protruding from the pipe 11 by hand and moving the internal moving body 12 toward the tip of the pipe 11, the sealing wire 14 is inserted into the pipe 11 over the entire length of the pipe 11, and then the tip of the pipe 11. The wire 14 for sealing is removed from the hook of the internal moving body 12 that has reached the point, and the internal moving body 12 is returned to the proximal end of the pipe 11. On the other hand, the height of the guide roller 29 and the pipe 11 is adjusted by an adjustment tool (not shown) provided on the fixture 28. Reference numeral 36 in FIG. 8 denotes a cable laid on the rack 27.
[0019]
Next, the drum 37 around which the compressor 37 and the cable 26 are wound is disposed in the vicinity of the proximal end of the pipe 11, the air hose 37 b is connected to the compressor 37 via the air adjustment valve 37 a, and further, the locking hole 13 a of the suspension plate 13 is connected. After locking the distal end of the cable 26, the distal end of the air hose 37b is connected to the proximal end of the pipe 11 via a connector 37c. When the air adjustment valve 37a is opened in this state and the compressed air of the compressor 37 is introduced into the pipe 11, the internal moving body 12 is propelled by the compressed air pressure.
[0020]
When the internal moving body 12 is propelled, the suspension plate 13 pulls the cable 26. When the suspending plate 13 passes through the cut 11a, the sealing wire 14 closing the cut 11a passes through the wire drawing-in portion 16g. Radial center of pipe Be drawn into. For this reason, the suspending plate 13 moves smoothly through the cut line 11 without being obstructed by the sealing wire 14. The sealing wire 14 is a pipe 11. Radial center of pipe It is only when the sealing wire 14 is positioned between the seal portions 17, 17 at both ends of the moving shaft 16 that the lead 11 is opened. Radial center of pipe The sealing wire 14 drawn in is guided into the second cut 11c by the guide groove 17d of the seal portion 17, and the seal wire 14 positioned other than between the seal portions 17 and 17 is brought into close contact with the cut 11 by the compressed air. The joint 11f between the pipes 11d and 11e is sealed by the connecting pipe 22 (FIG. 5). As a result, the airtightness in the pipe 11 from the coupler 37c of the air hose 37b to the internal moving body 12 is enhanced, and the compressed air does not leak out of the pipe 11. During the movement of the internal moving body 12, the air pressure is maintained and the internal moving body 12 advances smoothly.
[0021]
When pulled by the suspension plate 13, the cable 26 is drawn out from the drum 38 and is laid on the guide roller 29 by the guide roller 29 with a small resistance. At this time, it is desirable to prevent the back tension from being applied to the cable 26 by rotating the drum 38 by an operator's hand. Further, by gradually opening the air adjustment valve 37a, the internal moving body 12 is accelerated and pulls the cable 26 to a target location. When the cable 26 attached to the internal moving body 12 reaches the distal end of the pipe 11, that is, the cable laying end point, an operator at the end point reaches the base end of the pipe 11, that is, the cable laying start point by communication means such as a telephone. The operator is contacted, the air adjustment valve 37a is closed, the exhaust valve (not shown) provided in the air hose 37b is opened to discharge the compressed air in the pipe 11, and then the cable 26 from the suspension plate 13 is discharged. And the internal moving body 12 is returned to the starting point of the pipe 11.
[0022]
In addition, when returning an internal moving body from the front-end | tip of a pipe to a base end, you may carry out by introduce | transducing compressed air in a pipe from the front-end | tip of a pipe.
Moreover, although the apparatus which lays a cable was demonstrated in the said embodiment, this invention is not restricted to this, The apparatus which handles the flammable substance, such as an organic solvent, and conveys the object in the place where an electric motor cannot be used with compressed air It can also be applied to.
Moreover, if a plurality of pipes are provided, it is possible to move objects over a wide range or to transport a plurality of objects at intervals.
Furthermore, by installing the apparatus of the present invention in a place where a rail cannot be installed, an object can be moved to a complicated route, and its application is very wide.
[0023]
9 and 10 show a second embodiment of the present invention. In both figures, the same reference numerals as those in FIGS. 1 to 4 and 8 denote the same components.
The characteristic configuration of this embodiment is that a deflecting tool 51 is attached in the middle of the hanging plate 13 outside the pipe 11. The deflecting tool 51 is made of a small metal pipe, and the base end of the deflecting tool 51 is curved toward the outside of the guide roller 29 as shown in FIG. The deflecting tool 51 is attached to the suspension plate 13 by a U bolt 52. In FIGS. 9 and 10, reference numeral 53 denotes a cable that has been laid, and reference numeral 54 denotes a cable that is newly laid.
If the laid cable 53 is left on the guide roller 29, the horizontal roller 29a does not rotate freely, so that the traction resistance of the second cable 53 to be laid next increases. For this reason, first, the cable 53 already laid in the deflecting tool 51 is inserted, and then the tip of the cable 54 newly laid at the lower end of the suspension plate 13 is locked as in the first embodiment, and the first The compressed air is introduced into the pipe 11 as in the embodiment. As a result, when the internal moving body 12 is propelled, the cable 53 already laid by the deflector 51 is removed from the guide roller 29 and directly laid on the rack 27, so that the guide roller 29 can freely rotate. In this state, a new cable 54 is then laid on the guide roller 29. Although not shown, when laying the third cable, the second cable is inserted into the deflecting tool, and the third cable is locked to the lower end of the suspension plate, and laid in the same manner.
[0024]
11 to 14 show a third embodiment of the present invention. 11 to 14, the same reference numerals as those in FIGS. 1 to 4 denote the same components.
In this embodiment, the moving shaft 76 of the internal moving body 72 is formed in a prismatic shape, the seal portion 77 has a core metal 77a and an elastic body 77b fitted to the core metal 77a, and the first rotating body. 81 is formed in a substantially hemispherical shape, and a wire drawing portion 73 a is further formed in the hanging plate 73. The seal portion 77 is fitted into a seal holding shaft 76a fixed to both end surfaces of the moving shaft 76 and fixed by nuts 77c (FIGS. 11, 13, and 14). A shaft 78 that is orthogonal to the axis of the shaft and extends in the horizontal direction is inserted (FIGS. 11 and 12). Ball bearings 79 (FIG. 12) are fitted to both ends of the shaft 78, and the first rotating body 81 is fitted to the ball bearings 79. The first rotating body 81 has a smaller radius of curvature than the inner diameter of the pipe 11 and rolls on the inner bottom surface of the pipe 11. In addition, as long as the 1st rotary body can roll the inner bottom face vicinity of a pipe, you may form in a substantially truncated cone shape or another shape.
The suspension plate 73 has a substantially Y-shaped cross section (FIG. 12), and a wire lead-in portion 73 a into which the sealing wire 14 is loosely inserted is formed on the plate 73. Reference numeral 77d in FIG. 13 is a guide groove. In order to reduce the frictional resistance between the sealing wire and the inner surface of the wire drawing-in portion, the inner surface of the wire drawing-in portion is coated with a friction reducing material such as fluororesin, or the wire drawing-in portion in contact with the sealing wire. You may embed the ball | bowl and roller which can rotate at predetermined intervals in an inner bottom part.
Since the usage method of the laying apparatus using the compressed air configured as described above is the same as that of the first embodiment, repeated description is omitted.
[0025]
15 to 18 show a fourth embodiment of the present invention. 15 to 18, the same reference numerals as those in FIGS. 1, 2, 5, and 6 denote the same components.
The characteristic configuration of this embodiment is that an external moving body 91 is fitted into the pipe 11 and the external moving body 91 is connected to the internal moving body 12 via a connecting plate 92 passing through the cut 11a of the pipe 11. It is configured to be movable together with the internal moving body 12, and the hanging tool 93 is fixed to the external moving body 91. Similarly to the first embodiment, the internal moving body 12 is in contact with the moving shaft 16 extending parallel to the axis of the pipe 11 and is in contact with the inner surface of the pipe 11 so as to keep airtightness, and is fixed to both ends of the moving shaft 16. And a first rotating body 21 rotatably attached to the moving shaft 16 and capable of rolling on the inner bottom surface of the pipe 11 (FIGS. 15 and 16). The pipe 11 has a pair of first rails 101 and 101 extending in the longitudinal direction of the pipe 11 on both sides of the upper surface of the pipe 11 and a pair of second rails 102 and 102 extending in the longitudinal direction of the pipe 11 on both sides of the lower surface of the pipe 11. (FIGS. 15 and 17). The pair of first rails 101 and 101 are welded to both sides of the upper part of the outer surface of the pipe 11, and the upper surfaces thereof are formed horizontally. The first rail 101 is supported by a prismatic support member 94 welded to the lower surface of the first rail 101 and the outer surface of the pipe 11 in order to prevent deformation. The pair of second rails 102 and 102 are formed by welding square bars on both sides of the lower part of the outer surface of the pipe 11. In addition, you may use the internal moving body of 3rd Embodiment instead of the internal moving body of 1st Embodiment.
[0026]
The external moving body 91 includes an outer cylinder 96 having a notch 96 a on the upper surface, a second rotating body 112 attached to the outer cylinder 96 and capable of rolling on the upper surface of the first rail 101, and a second attached to the outer cylinder 96. A third rotating body 113 capable of rolling on the protruding surface of the rail 102. The outer cylinder 96 is formed larger in diameter than the pipe 11. The second rotating body 112 is rotatably attached to the lower end of a stay 97 (FIG. 15) suspended from both side edges of the notch 96 a of the outer cylinder 96, and the third rotating body 113 is attached to the lower part of the inner surface of the outer cylinder 96. It is rotatably attached to a bracket 98 (FIGS. 15 and 16) attached to face the protruding surface of the rail 102. A total of four first and second rotating bodies 112, 113 are attached to the front, rear, left, and right of the outer cylinder 96, respectively. The upper end of the connecting plate 92 is fixed to the moving shaft 16 of the internal moving body 12, and a through hole 92 a extending in the vertical direction is formed at the lower end protruding from the pipe 11 into the outer cylinder 96. A substantially U-shaped plate holder 99 is erected on the inner bottom surface of the outer cylinder 96 facing the connection plate 92, and the plate receiver 99 and the connection plate 92 are inserted with the connection plate 92 inserted into the plate receiver 99. The movable shaft 16 and the outer cylinder 96 are connected by inserting the pin 103 into the through hole 92a. The reason why the through hole 92a of the connecting plate 92 is formed as a long hole extending in the vertical direction is to allow the outer cylinder 96 to move in the vertical direction relative to the moving shaft 16. If there is no relative vertical movement between the moving shaft and the outer cylinder, the connecting plate and the plate holder may be tightened with bolts and nuts.
[0027]
Two suspension members 93 are welded to the lower surface of the outer cylinder 96 along the hole core of the outer cylinder 96 at a predetermined interval (FIGS. 15 and 16). A flat bar 104 is attached to these suspenders 93, and a pair of ropes 106 and 106 (FIG. 16) are suspended from both ends of the flat bar 104. An object (not shown) is suspended from the lower ends of the ropes 106 and 106. As in the first embodiment, the pipe 11 has a connected pipe 11d and a connecting pipe 11e connected by a connecting pipe 22, and one end of the connecting pipe 22 is a base of the connected pipe 11d. It is welded to the end (FIGS. 17 and 18). A first pedestal 31 is provided on the outer surface of the other end of the connection pipe 22, and a second pedestal 32 is provided on the outer surface of the tip of the connection pipe 11e. The base end of the screw 24 is pivotally attached to the first pedestal 31, and the screw 24 is installed between the pedestals 31 and 32 by fastening the tip of the screw 24 to the second pedestal 32. A pair of connection rails 111 and 111 are welded to both sides of the upper surface of the connection pipe 22, and the upper surfaces of the rails 111 and 111 coincide with the upper surfaces of the pair of first rails 101 and 101 welded to the pipe 11. The distance from the center of the connection pipe 22 to the outer surface coincides with the distance from the center of the pipe 11 to the protruding surface of the second rail 102 welded to the pipe 11. Reference numeral 107 in FIGS. 17 and 18 denotes an eyebolt for holding the connection pipe 22 and the pipe 11. A magnet 108 is attached to one outer surface of the outer cylinder 96, and a proximity switch (not shown) is attached to the outside near the tip of the pipe 11. Although not shown, the air hose connecting the base end of the pipe 11 and the air compressor is provided with an electromagnetic opening / closing valve in addition to the air adjustment valve.
[0028]
In the transport device using the compressed air configured as described above, the load of the transported object is received by the first rail 101 and the connection rail 111 via the second rotating body 112, and the internal moving body 12 receives the transported object. Since no load is applied, the internal moving body 12 moves more smoothly in the pipe 11 than in the case of the first embodiment. Further, since the third rotating body 113 rolls on the protruding surface of the second rail 102 and the outer surface of the connection pipe 22, the outer cylinder 96 is not detached from the pipe 11. Further, when the external moving body 91 moves along the pipe 11 together with the internal moving body 92 and the magnet 108 attached to the outer cylinder 96 passes near the proximity switch (not shown), this switch is externally applied by the magnetic force of the magnet 108. It is detected that the moving body 91 has reached the vicinity of the tip of the pipe 11, and a control means (not shown) closes an electromagnetic opening / closing valve (not shown) based on this detection output. As a result, the introduction of compressed air into the pipe 11 is stopped, and the internal moving body 12 is automatically stopped at the tip of the pipe 11.
[0029]
【The invention's effect】
As described above, according to the present invention, the suspension plate is formed with a cut in the lower surface in the longitudinal direction of the pipe, the internal moving body that moves in the pipe by compressed air is inserted into the pipe, and is connected to the internal moving body. The object to be laid or transported is suspended at the lower end of the pipe protruding below the pipe, the sealing wire that can close the cut is disposed in the pipe, and further sealed to the internal moving body or the suspension plate Wire for pipe Radial center direction Since the wire rod lead-in part is formed, the sealing wire is piped by the wire lead-in portion at the position where the hanging plate passes. Radial center direction Be drawn into. As a result, the present invention hardly wears or damages the sealing wire as compared with the conventional laying or conveying device in which the sealing wire is scraped by the edge of the suspension plate and may be worn or damaged. Absent. Also, the pipe break is closed with a sealing wire, the inner wire is inserted into the pipe with the sealing wire inserted into the wire lead-in portion and the suspension plate passed through the cut, and the lower end of the suspension plate When compressed air is introduced into the pipe after connecting the object to be laid, the internal moving body is propelled, and at the same time, the object to be laid or transported outside the pipe is pulled and laid or transported. As a result, the object to be laid or the object to be transported can be laid or transported in a short time.
[0030]
The internal moving body is attached to the moving shaft extending parallel to the axis of the pipe, the seal portion that is in contact with the inner surface of the pipe so as to keep airtight, and is fixed to both ends of the moving shaft, and is rotatably attached to the moving shaft. A first rotating body capable of rolling on the inner bottom surface of the pipe, a suspension plate is connected to the lower surface of the moving shaft, and a wire rod drawing portion is formed on the moving shaft or the hanging plate. Since the inner bottom rolls, the internal moving body can move smoothly in the pipe. Even if the wire for sealing is drawn into the pipe by the wire drawing portion and the cut of the pipe is opened, the position where the cut is opened is only between the seal portions provided at both ends of the moving shaft. The compressed air introduced into the inside does not leak in other parts.
[0031]
Also, a cut is formed on the lower surface in the longitudinal direction of the pipe, an internal moving body that moves inside the pipe by compressed air is inserted into the pipe, and an external moving body that is connected to the internal moving body through a connection plate that passes through the cut is moved internally. Inserted into the pipe so that it can move with the body, suspends the object to be laid or transported on the hanging tool fixed to the external moving body, arranges the sealing wire that can close the cut in the pipe, and further moves inside Pipe for sealing wire on body or connecting plate Radial center direction If the wire rod drawing portion to be drawn into is formed, the load of the transported object is received by the external moving body, and the load of the transported object is not applied to the internal moving body. Therefore, the internal moving body can move more smoothly in the pipe.
[0032]
The internal moving body is attached to the moving shaft extending parallel to the axis of the pipe, the seal portion that is in contact with the inner surface of the pipe so as to keep airtight, and is fixed to both ends of the moving shaft, and is rotatably attached to the moving shaft. A first rotating body capable of rolling on the inner bottom surface of the pipe, and a first rail extending in a longitudinal direction of the pipe at an upper portion of the outer surface of the pipe and a second rail extending in a longitudinal direction of the pipe at a lower portion of the outer surface of the pipe An outer cylinder having a notch on the upper surface thereof, a second rotating body attached to the outer cylinder and capable of rolling on the upper surface of the first rail, and a projecting surface of the second rail attached to the outer cylinder If the connecting plate is connected to the lower surface of the moving shaft and the wire rod drawing portion is formed on the moving shaft or the connecting plate, the load of the object to be transported is passed through the second rotating body. The first rail receives and moves internally as described above. It can move in the pipe further smoothly. Moreover, since the 3rd rotary body rolls on the protrusion surface of a 2nd rail, an outer cylinder does not remove | deviate from a pipe.
[0033]
The pipe has a pipe to be connected and a connecting pipe whose tip is connected to the base end of the pipe to be connected by a connecting pipe, and the connecting pipe leaves a cut between the connecting pipe and the connecting pipe. Thus, if the joint between the two pipes is closed, it is possible to prevent the compressed air introduced into the pipe from leaking at the connecting portion between the pipe to be connected and the pipe for connection.
[0034]
Also, one end of the connecting pipe is welded to the connected pipe or the proximal end of the connecting pipe, a first pedestal is provided on the outer surface of the other end of the connecting pipe, and a second pedestal is provided on the outer end of the connecting pipe or the connected pipe. If a base is provided, the base end of the screw is pivotally attached to the first base or the second base, and the tip of the screw is fastened to the second base or the first base, the screw is installed between both bases. Since the connecting portion between the connecting pipe and the connecting pipe is brought into close contact with the screw, the compressed air introduced into the pipe can be more reliably prevented from leaking at the connecting portion of the pipe.
[0035]
Furthermore, when the object to be laid is a cable and the second cable is newly laid on the guide roller after the first cable is laid on the guide roller, the second cable is provided on the lower end of the hanging plate or the hanging tool. If a deflecting tool for engaging the first cable and removing the first cable from the guide roller and moving it to a predetermined laying position is attached to the hanging plate or the lower end of the hanging tool or near the lower end, the guide roller Since the first cable laid on the first cable is moved to a predetermined laying position at the same time as the second cable is laid on the guide roller, the cable can be efficiently laid at a predetermined place.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view taken along line AA of FIG. 2 showing a laying or carrying device using compressed air according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line BB in FIG.
3 is a cross-sectional view taken along the line CC of FIG.
FIG. 4 is a side view of an internal moving body of the apparatus.
FIG. 5 is a side view showing a connection state of pipes of the apparatus.
6 is a cross-sectional view taken along the line DD of FIG.
7 is a cross-sectional view taken along line EE in FIG.
FIG. 8 is a fragmentary side view showing a cable laying state by the apparatus.
FIG. 9 is a cutaway side view of an essential part corresponding to FIG. 8 showing a second embodiment of the present invention.
10 is a cross-sectional view taken along line FF in FIG. 9;
FIG. 11 is a cross-sectional view taken along the line GG of FIG. 12 showing a third embodiment of the present invention.
12 is a cross-sectional view taken along line HH in FIG.
13 is a cross-sectional view taken along the line II of FIG.
FIG. 14 is a side view of the internal moving body of the apparatus.
FIG. 15 is a cross-sectional view taken along line JJ of FIG. 16 showing a fourth embodiment of the present invention.
16 is a sectional view taken along line KK in FIG.
FIG. 17 is a side view showing a pipe connection state of the apparatus.
18 is a cross-sectional view taken along line LL in FIG.
[Explanation of symbols]
11 Pipe
11a Pipe break
11d Pipe to be connected
11e Pipe for connection
11f Pipe seam
12,72 Internal moving body
13,73 Hanging plate
14 Wire for sealing
16,76 movement axis
16g, 73a Wire lead-in part
17, 77 Seal part
21, 81 First rotating body
22 Connection pipe
24 screws
26 Cable to be laid
29 Guide roller
31 First base
32 Second pedestal
36 Pre-installed cable
51 Deflector
53 Pre-installed cable (first cable)
54 Cable to be laid (second cable)
91 External moving body
92 Connecting plate
93 Suspension
96 outer cylinder
96a Notch of outer cylinder
101 First rail
102 2nd rail
112 Second rotating body
113 3rd rotating body

Claims (8)

A pipe (11) having a cut (11a) on its lower surface in the longitudinal direction over its entire length;
The pipe (11) to be inserted is movable the pipe (11) the pipe (11) feeding Ri by compressed air to be written into the internal moving body (12,72),
An upper end is connected to the internal moving body (12, 72) in the pipe (11), protrudes below the pipe (11) through the cut (11a), and an object to be laid (26, 36) or A suspension plate (13, 73) capable of hanging the object to be transported;
A wire rod for sealing (14) arranged in the pipe (11) and disposed on the entire length of the pipe (11) and capable of closing the cut (11a),
The sealing wire (14) formed on the internal moving body (12) or the suspension plate (73) and opposed to the suspension plate (13, 73) is connected to the central portion in the radial direction of the pipe of the pipe (11). With wire rod retraction part (16g, 73a) to be pulled in the direction ,
該線material retraction part (16g, 73a), said pipe (11) inside the moving body moving in the insertion hole (16 a) formed on the inside of the moving shaft (16,76) of the (12,72) , consists insertion hole (16 a) in communication with the sealing wire pair of communication holes for pulling in a diagonal direction (14) in the insertion hole (16 a) (16 h) (16 h), said insertion passage hole (16 a) is formed in a pipe axis of movement extending parallel to the axis (11) (16,76) inwardly position within the moving body (12,72) (central axis direction position), Further, the communication hole (16 h) (16 h) is in the extend towards each other obliquely longitudinal from the bottom to the radius of the center direction of the pipe respective movement axes (16,76) and the insertion hole (16 a) A laying or conveying device using compressed air, wherein the sealing wire ( 14 ) is inserted in communication . The internal moving body (12, 72) is in contact with the moving shaft (16, 76) extending parallel to the axis of the pipe (11) so as to keep airtight on the inner surface of the pipe (11) and the moving shaft ( 16, 76) and seal portions (17, 77) fixed to both ends, and a first rotating body rotatably attached to the moving shaft (16, 76) and capable of rolling on the inner bottom surface of the pipe (11) (21,81)
A suspension plate (13, 73) is connected to the lower surface of the movement shaft (16, 76), and a wire rod drawing portion (16g, 73a) is formed on the movement shaft (16) or the suspension plate (73). The apparatus of claim 1. A pipe (11) having a cut (11a) on its lower surface in the longitudinal direction over its entire length;
The pipe (11) to be inserted is movable the pipe (11) the pipe (11) feeding Ri by compressed air to be written into the internal moving body (12),
An external moving body (91) fitted into the pipe (11) and connected to the internal moving body (12) via a connecting plate (92) passing through the cut (11a) and movable together with the internal moving body (12). )When,
A hanging tool (93) having an upper end fixed to the external moving body (91) and capable of hanging an object to be laid or a carried object at the lower end,
A wire rod for sealing (14) arranged in the pipe (11) and disposed on the entire length of the pipe (11) and capable of closing the cut (11a),
A wire rod drawing portion for drawing the sealing wire rod (14) formed on the internal moving body (12) or the coupling plate and facing the coupling plate (92) in the radial center portion direction of the pipe of the pipe (11) ( 16g) and equipped with a,
該線material retraction part (16g, 73a), said pipe (11) inside the moving body moving in the insertion hole (16 a) formed on the inside of the moving shaft (16,76) of the (12,72) , consists insertion hole (16 a) in communication with the sealing wire pair of communication holes for pulling in a diagonal direction (14) in the insertion hole (16 a) (16 h) (16 h), said insertion passage hole (16 a) is formed in a pipe axis of movement extending parallel to the axis (11) (16,76) inwardly position within the moving body (12,72) (central axis direction position), Further, the communication hole (16 h) (16 h) is in the extend towards each other obliquely longitudinal from the bottom to the radius of the center direction of the pipe respective movement axes (16,76) and the insertion hole (16 a) A laying or conveying device using compressed air, wherein the sealing wire ( 14 ) is inserted in communication . The internal moving body (12) is in contact with the moving shaft (16) extending parallel to the axis of the pipe (11) so as to keep airtightness on the inner surface of the pipe (11) and both ends of the moving shaft (16). And a first rotating body (21) rotatably attached to the moving shaft (16) and capable of rolling on the inner bottom surface of the pipe (11),
The pipe (11) has a first rail (101) extending in the longitudinal direction of the pipe (11) at the upper part of the outer surface of the pipe (11), and a longitudinal direction of the pipe (11) at the lower part of the outer surface of the pipe (11). A second rail (102) extending to
An outer cylinder (96) having a notch (96a) on the upper surface of the external moving body (91), and a second rotating body attached to the outer cylinder (96) and capable of rolling on the upper surface of the first rail (101) (112) and a third rotating body (113) attached to the outer cylinder (96) and capable of rolling on the protruding surface of the second rail (102),
The apparatus according to claim 3, wherein a connecting plate (92) is connected to a lower surface of the moving shaft (16), and a wire rod drawing portion (16g) is formed on the moving shaft (16) or the connecting plate. The pipe (11) has a coupled pipe (11d) and a coupling pipe (11e) having a distal end connected to the proximal end of the coupled pipe (11d) by a connecting pipe (22),
The connecting pipe (22) is configured to close the joint (11f) of both pipes (11d, 11e) leaving the cut (11a) of the connected pipe (16d) and the connecting pipe (16e). The apparatus according to claim 1 or 3.   One end of the connecting pipe (22) is welded to the connected pipe (11d) or the base end of the connecting pipe, and the first pedestal (31) is provided on the other end outer surface of the connecting pipe (22), A second pedestal (32) is provided on the outer surface of the distal end of the connecting pipe (11e) or the connected pipe, and a base end of a screw (24) is pivotally attached to the first pedestal (31) or the second pedestal. The screw (24) is installed between both pedestals (31, 32) by fastening the tip of the screw (24) to the second pedestal (32) or the first pedestal. apparatus.   The device according to claim 1 or 3, wherein the laying object (26, 36, 53, 54) is a cable. An apparatus for laying a second cable (54) on the guide roller (29) after laying the first cable (53) on the guide roller (29),
The second cable (54) is provided at a lower end of a suspension plate (13) or a suspension tool, and engages with the first cable (53) to connect the first cable (53) to the guide roller (29). 8. The apparatus according to claim 7, wherein a deflecting tool (51) for removing from the top and moving to a predetermined laying position is attached to the suspension plate (13) or to the lower end of the suspension or near the lower end.

Images