JPH11252764A - Pipe for extending cable and sleeve pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve working efficiency, by embedding, within the pipe wall, an insert which may be engaged with an engaging portion provided to a hook for extending a cable or a sleeve pipe. SOLUTION: In the case of extending and laying a communication and power cables or a sleeve pipe for accommodating communication and power cables within the pipe 1, the pipe 1 in which the insert 3 is embedded in the pipe wall 1a is coupled and laid so that the position of insert 3 is continuously arranged at the time of forming the pipe 1 at the factory, a hook 2 is then engaged and fixed with the insert 3 and the cable for communication and power or the sleeve pipe for accommodating such communication and power cables are inserted to this hook 2 to extend these cable and pipe. When the pipe 1 has a large diameter, a worker 1 enter the pipe 1 to engage the hook 2 to the insert 3 for extending the cable and sleeve pipe. When the pipe 1 has a small diameter, the hook 2 is engaged with the insert 3 with a robot which can move and work within the pipe 1 in order to extend the cable and sleeve pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication and power cable or a sheath tube for accommodating the communication and power cable, which is suspended and laid in a pipe for water supply and sewerage buried in the ground. The present invention relates to a suspension tube for a cable and a sheath tube.

[0002]

2. Description of the Related Art Conventionally, when an optical fiber cable is suspended in a pipe for water supply and sewerage buried in the ground, a bolt 51 is previously embedded in a pipe wall 1a as shown in FIG. Received by the saddle 53 and the saddle
The bolt 51 is inserted into a hole provided in the bolt 53, and the nut 54 is screwed and fastened to the bolt 51 to suspend the bolt.

A small-diameter pipe employs a robot that travels in the pipe instead of a worker. As shown in FIG. 20 (a), the robot drills a pilot hole 1b in a pipe wall 1a.
Is opened, the optical fiber cable 52 is received by the L-shaped anchor 61, and a plunger pin 62 slidable with respect to the main body of the anchor 61 abuts against the bottom surface of the pilot hole 1b, and the main body of the anchor 61 is lowered. (Fig. 20 (b)
reference).

[0004] An adhesive 63 is accommodated between the plunger pin 62 and the anchor 61 main body.
When the adhesive slides into the anchor 61 body
63 is pushed by the plunger pin 62 and the plunger pin
Overflow along 62, the outer periphery of anchor 61 body and pilot hole 1
The anchor 61 and the tube wall 1a are adhered and fixed by penetrating between the wall surfaces b (see FIG. 20 (c)).

[0005]

However, in the above-described conventional example, as shown in FIG. 19, an optical fiber cable 52 is supported by using a saddle 53, and a nut 54 is mounted on a bolt 51 previously embedded in the tube wall 1a. In the case of suspension by screwing and fastening, the saddle 53 and the nut 54 are separate parts, so it is necessary to screw and fasten the nut 54 to the bolt 51 in a state where the saddle 53 is supported. For large-diameter pipes that can be installed by workers, installation work can be performed, but for small-diameter pipes, nuts by a robot
Since the screwing work of 54 becomes difficult, the robot must be equipped with a complicated mechanism, which causes an increase in cost and a problem that the mounting work takes time.

When an optical fiber cable 52 is supported by using an anchor 61 having a plunger pin 62 slidably incorporated therein as shown in FIG. 20, although the work can be performed by a robot even with a small diameter pipe, the structure of the anchor 61 itself However, there is a problem that the fixing of the anchoring portion of the anchor 61 must be more reliably performed.

[0007] The present invention is to solve the above-mentioned problems,
Its purpose is to provide a cable and sheath tube suspension tube that has good workability even when a worker attaches a large-diameter tube, can easily work with a small-diameter tube using a robot, has a simple structure, and reduces parts costs. Is to be provided.

[0008]

According to the present invention, there is provided a cable for connecting a cable and a sheath pipe for communication and electric power in a pipe for water supply and sewerage buried in the ground. Alternatively, in a cable for suspending and laying a sheath tube for accommodating the communication and power cables, a suspending tube for the sheath tube may be engaged with an engaging portion provided on a hook for suspending the cable or the sheath tube. The insert is embedded in the pipe wall.

According to the above construction, the insert which can be engaged with the engaging portion provided on the hook for suspending the cable or the sheath tube is buried in the tube wall. The hook can be easily attached to the tube wall only by engaging the engaging portion.

When a flange is provided at the outer end of the insert and the flange is engaged with a contact portion provided on the outer wall surface of the pipe, the insert is firmly attached to the pipe wall. It is supported and can be stably supported even when the weight of the cable or the sheath tube is large.

In the case where a reinforcing member for increasing the wall thickness of the tube wall is provided at a position where the insert is embedded in the tube wall, the insert can be firmly attached to the tube wall even when the tube wall is thin. , And can be stably supported even when the weight of the cable or the sheath tube is large.

Further, the reinforcing member is constituted by a bolt member which can be screwed and fastened to the pipe wall or an insert embedded in the pipe wall, and can be engaged with an engaging portion provided on the hook. In this case, a bolt member serving as a reinforcing member can be easily attached.

When the engaging portion provided on the hook is a bolt and the insert is a nut which can be screwed to the bolt, the hook is fastened to the insert by screwing the bolt and the nut together. It can be easily installed.

In the case where the insert is expanded by inserting an engaging portion provided on the hook and is locked on the tube wall, the locking of the insert with respect to the tube wall is performed by the hook inserting operation. Easy installation with one touch operation.

When the hook has a ring-shaped suspension, the cable and the sheath tube can be reliably and easily suspended on the ring-shaped suspension.

When the hook is formed by an I-bolt having a ring-shaped suspension, a commercially available hook having a simple structure can be used, and the cost of parts can be reduced.

When the ring-shaped suspension portion of the hook is configured to be openable and closable, the suspension portion can be opened and the cable or the sheath tube can be easily suspended on the hook. It can be closed to securely support the cable or sheath tube on the hook.

The hook may have a flat or rod-shaped suspension, and if the flat suspension is configured to be housed in a position near the inner wall surface of the pipe, no cable or sheath tube is suspended. Sometimes, the flat-shaped suspension portion is stored at a position near the inner wall surface of the pipe so that the flow of rainwater or the like flowing through the pipe is not hindered. The cable and the sheath can be suspended from the suspension by projecting the suspension from the position near the inner wall surface of the tube toward the inside of the tube.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
One embodiment of a sheath tube suspension tube will be specifically described. FIG.
(A), (b) is a diagram showing the configuration of a first embodiment of a cable and a sheath tube suspension tube according to the present invention, and FIGS.
FIG. 3 is a diagram showing a configuration of a main part of the first embodiment, FIG. 3 is a diagram showing a configuration of a cable and a sheath tube according to a second embodiment of the present invention, and FIGS. A cable according to the invention,
FIG. 5 is a view showing a configuration of a third embodiment of a suspension tube for a sheath tube, FIG.
(A), (b) is a diagram showing a configuration of a fourth embodiment of a cable and a sheath tube suspension tube according to the present invention, and FIGS. 6 (a) to (c).
FIG. 7A is a diagram showing a configuration of a main part of the fourth embodiment, and FIGS.
FIGS. 8 (b) and 8 (a) and 8 (b) show the structure of a fifth embodiment of a cable and a sheath tube according to the present invention. FIGS. 9 (a) and 9 (b) show the present invention. FIG. 10 (a) shows a configuration of a sixth embodiment of such a cable or sheath tube suspension tube.
FIG. 11B shows a configuration of a main part of the sixth embodiment, and FIG.
(A), (b) is a diagram showing the configuration of a seventh embodiment of a cable and a sheath tube suspension tube according to the present invention, and FIGS. 12 (a), (b)
FIG. 13A is a diagram showing a configuration of a main part of the seventh embodiment.
(B) shows the eighth embodiment of the suspension tube for the cable and the sheath tube according to the present invention.
FIGS. 14 (a) and 14 (b) are views showing a configuration of a main part of the eighth embodiment, and FIGS. 15 (a) and (b) are views of a cable and a sheath tube according to the present invention. FIGS. 16 (a) and 16 (b) show the configuration of a main part of the ninth embodiment of the suspension tube, and FIGS. 17 (a) and 17 (b) show the present invention. FIG. 18A and FIG. 18B are diagrams showing a configuration of a tenth embodiment of such a cable and a tube for suspending a sheath tube, and FIGS. 18A and 18B are diagrams showing a configuration of a main part of the tenth embodiment.

First, the configuration of a first embodiment of a cable and a sheath tube suspension tube according to the present invention will be described with reference to FIGS. 1 (a) and 1 (b), reference numeral 1 denotes a fume pipe, a hard vinyl chloride pipe, an FRP (fiber reinforced pipe),
It is a cable composed of steel pipes and the like, buried in the ground and constituting a pipeline for water supply and sewage, etc.It is a suspension pipe of a sheath pipe, and in each of the figures shown below, an example of a round pipe is shown. Alternatively, the present invention can be applied to a cable formed of a tube having an elliptical cross section, an oval tube, or a square tube, or a suspension tube of a sheath tube.

An optical fiber cable for communication and a cable for power or a sheath tube for accommodating the cable for communication and power can be suspended and laid by the hook 2 in the pipe 1.

As shown in FIG. 2C, an engaging portion 2 is provided at one end of a hook 2 for suspending a cable or a sheath tube (not shown).
a on the other hand, an insert 3 which can be engaged with an engaging portion 2 a provided on the hook 2 in the tube wall 1 a of the tube 1.
Is buried.

Various means can be used for the engagement between the engaging portion 2a and the insert 3. For example, the hook 2 and the engaging portion 2a are formed by an I-bolt having a ring-shaped suspension portion, and the insert 3 is The I-bolt can be constituted by a nut which can be screwed and fastened.

As shown in FIGS. 2A to 2C, the tube wall 1
A thread groove 3a, 3b is formed on each side of the insert 3 having a length corresponding to the thickness of the hook 3a, and an I bolt of the hook 2 is screwed into the thread groove 3a arranged inside the tube wall 1a. They are to be fastened together.

When the pipe 1 is made of a concrete pipe, a bolt provided on the mold side at the time of manufacturing the pipe 1 is screwed and fastened to the thread groove 3b of the insert 3 to form the pipe 1. And the insert 3 are fixed.
Are integrally buried inside the tube wall 1a.

On the outer peripheral surface of the insert 3, there is formed a projection 3c consisting of a rib arranged in the axial direction and a bush arranged in a direction perpendicular to the axis. The projection 3c cuts into the tube wall 1a. The insert 3 is firmly locked and fixed to the tube wall 1a.

When the pipe 1 is a steel pipe, a screw groove is formed in the pipe wall 1a so as to penetrate the pipe wall 1a, and is screwed into the outer peripheral portion of the insert 3 with a screw groove provided in the pipe wall 1a. It is also possible to form an obtained screw thread.

A flange 2b is provided at a position corresponding to the end of the insert 3 of the hook 2 made of an I-bolt. When the hook 2 is screwed to the insert 3, the flange 2b is inserted. 3 and the inner wall surface 1b of the tube wall 1a to define the position of the hook 2, and the hook 2 is firmly joined to the insert 3 and the tube wall 1a.

In the above configuration, when a cable for communication and power or a sheath tube for accommodating the cable for communication and power is suspended and laid in the pipe 1, the pipe 1 must be formed in advance in a factory or the like. 1 with insert 3 embedded in tube wall 1a
Are connected and laid so that the positions of the inserts 3 are substantially continuous, and the hooks 2 are screwed and fastened to the inserts 3 and fixed to the hooks 2 for communication and power cables or It is suspended and laid by inserting a sheath tube containing the communication and power cables.

When the pipe 1 is a large-diameter pipe, the worker
The cable or the sheath tube can be inserted and suspended by screwing the hook 2 into the insert 3 while entering the inside, but if the tube 1 is a small-diameter tube, it travels in the tube 1 instead of an operator. The working robot makes it easy to insert and suspend the cable or sheath tube by screwing the hook 2 to the insert 3.

Further, the cable can be easily inserted through the sheath tube by air feeding with the sheath tube suspended from the hook 2.

According to the above configuration, the insert 3 that can be engaged with the engaging portion provided on the hook 2 for suspending the cable or the sheath tube is embedded in the tube wall 1a, so that the insert 3 is embedded in the tube wall 1a. The hook 2 can be easily attached to the tube wall 1a only by engaging the engaging portion of the hook 2 with the insert 3.

When the engaging portion provided on the hook 2 is a bolt and the insert 3 is formed of a nut which can be screwed to the bolt, the hook 2 is inserted by tightening the bolt and the nut. 3 can be easily attached.

When the hook 2 is formed of an I-bolt having a ring-shaped suspension, a commercially available hook 2 having a simple structure can be used, and the cost of parts can be reduced.

Next, the cable according to the present invention will be described with reference to FIG.
The configuration of the second embodiment of the suspension tube of the sheath tube will be described. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the first embodiment, the hook 2 is constituted by a ring-shaped closed suspension portion. In this embodiment, however, the work for suspending the communication and power cables or the sheath tube for accommodating the communication and power cables. In order to facilitate the above, a part of the ring-shaped suspension portion of the hook 2 is configured to be openable and closable.

In FIG. 3, a part of the ring-shaped suspension portion of the hook 2 is opened, and a lid member 2d rotatable about a shaft 2c is always attached in the direction of arrow a in FIG. The lid member 2d is engaged with the end 2f of the hook 2 and is held in the state shown in FIG.

When suspending the communication / power cable or the sheath tube for accommodating the communication / power cable on the hook 2, the lid member 2 d is attached through the opening of the ring-shaped suspension portion of the hook 2. Pushing around the shaft 2c in the direction opposite to the arrow a in FIG. 3 to suspend the cable or sheath tube on the hook 2, the lid member 2d rotates about the shaft 2c in the direction of the arrow a in FIG. The lid member 2d is locked to the end 2f of the hook 2 and held in the state shown in FIG.

According to the above configuration, the ring-shaped suspension portion of the hook 2 is configured to be openable and closable, so that the suspension portion can be opened and a cable or a sheath tube can be easily suspended on the hook 2. In the suspension work of the embodiment, it is necessary to insert a cable or a sheath tube into the hook 2, but in the present embodiment, the suspension can be performed only by fitting the cable or the sheath tube through the opening of the hook 2, so that the workability is improved. After the suspension, the suspension portion of the hook 2 can be closed to reliably support the cable and the sheath tube on the hook 2.

In the above embodiment, the lid member 2d is connected to the shaft 2c.
The hook 2 which turns into a ring-shaped suspension part by opening and closing is opened and closed. However, as another configuration, a part of the hook 2 slides along the hook 2 and expands and contracts, thereby forming a ring-shaped suspension. Can be configured to open and close the hook 2 serving as a suspension portion of the vehicle, and various other configurations of the opening and closing portion are conceivable. Other configurations are the same as those of the first embodiment, and similar effects can be obtained.

Next, referring to FIG. 4, the cable according to the present invention,
The configuration of the third embodiment of the suspension tube of the sheath tube will be described. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In this embodiment, the hook 2 has a flat or rod-shaped suspension. FIG. 4 shows an example of a flat suspension. The hook 2 shown in FIGS. 4 (a) and 4 (b) has a flat plate 2g arranged in contact with the inner wall surface 1b of the tube wall 1a, and a communication / power cable or a sheath for accommodating the communication / power cable. Flat plate 2 for suspending pipes
h is fixed by welding or the like, and the flat plate 2g is screwed and fastened to the thread groove 3a of the insert 3 embedded in the tube wall 1a by a countersunk bolt 2i. In addition, flat plate 2h
Is formed with a through hole 2j through which the countersunk bolt 2i can pass. In the present embodiment, the flat plates 2g and 2h are each made of a material having rigidity.

In place of the flat plate 2h, a bar-shaped suspension portion such as a reinforcing bar is arranged at a position avoiding the path where the flat head bolt 2i advances when the flat head bolt 2i is screwed into the screw groove 3a of the insert 3, and the flat plate 2g is formed. It may be fixed by welding or the like. Other configurations are configured in the same manner as in the first embodiment, and similar effects can be obtained.

Next, referring to FIGS. 5 and 6, the construction of a fourth embodiment of the cable and sheath tube suspension tube according to the present invention will be described. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In this embodiment, a flange 3d is provided at the outer end of the insert 3, and the flange 3d is abutted and engaged with a concave contact portion 1d provided on the outer wall surface 1c of the tube 1. According to the above configuration, the insert 3 is more firmly supported on the tube wall 1a, and can be stably supported even when the weight of the cable or the sheath tube is large. Other configurations are the same as those of the first embodiment, and similar effects can be obtained.

Next, the structure of a fifth embodiment of a cable and sheath tube suspension tube according to the present invention will be described with reference to FIGS. The same components as those in the first and third embodiments are denoted by the same reference numerals, and description thereof is omitted.

In the present embodiment, the third type shown in FIG.
The flat plate 2h of the embodiment is constituted by an elastic leaf spring 2k, and the leaf spring 2k is configured to be housed in a position near the inner wall surface 1b of the tube 1.

The leaf spring 2k and the flat plate 2g are connected and joined by a pin 21. The leaf spring 2k has a through hole 2j through which a countersunk bolt 2i can pass, as in the third embodiment. Then, the flat plate 2g is screwed and fixed to the screw groove 3a of the insert 3 embedded in the tube wall 1a by the flathead bolt 2i.

When a communication / power cable or a sheath tube for accommodating the communication / power cable is suspended from the hook 2, as shown in FIGS.
8 (a) and 8 (b), the leaf spring 2k stored in the vicinity of the flat plate 2b is bent back against its elastic force.
The cable or the sheath tube can be inserted into a suspension provided between g and the leaf spring 2k to suspend the cable.

When the cable or the sheath tube is not suspended, the leaf spring 2k projecting from the inner wall surface 1b of the tube 1 to the inside of the tube 1 as shown in FIGS. 7 (a) and 7 (b), the leaf spring 2k is stored in a position in the vicinity of the inner wall surface 1b of the pipe 1 to prevent rainwater or the like flowing through the pipe. Without interrupting the flow, if necessary, the leaf spring 2k is projected from the position near the inner wall surface 1b of the tube 1 toward the inside of the tube 1 when suspending the cable or the sheath tube as described above. Can be suspended on a leaf spring 2k serving as a suspension portion.

Other configurations are the same as those of the first and third embodiments, and similar effects can be obtained.

Next, referring to FIGS. 9 and 10, a description will be given of a configuration of a sixth embodiment of a cable and sheath tube suspension tube according to the present invention. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In this embodiment, as shown in FIGS. 9 (a) and 9 (b) and FIGS. 10 (a) and 10 (b), when the wall thickness of the tube wall 1a of the tube 1 is small, A reinforcing member 4 for increasing the wall thickness of the tube wall 1a is provided at a position where the tube wall 3 is embedded.

When the pipe 1 is a fume pipe, the reinforcing member 4 of the present embodiment is formed by bonding and reinforcing mortar or the like in an appropriate amount. When the pipe 1 is a resin pipe such as a hard vinyl chloride pipe, A reinforcing member 4 made of a hard vinyl chloride material or the like is bonded and joined with an adhesive such as an epoxy resin, and when the pipe 1 is a steel pipe, the reinforcing member 4 made of a steel material is fixed by welding or the like,
A screw groove is formed in the reinforcing member 4 and the pipe wall 1a, and a screw thread which can be screwed into the screw groove is formed in an outer peripheral portion of the insert 3.

According to the above configuration, even when the tube wall 1a of the tube 1 is thin, the insert 3 is firmly supported on the tube wall 1a, and can be stably supported even when the weight of the cable or the sheath tube is large. Other configurations are the same as those of the first embodiment, and similar effects can be obtained.

Next, referring to FIGS. 11 and 12, the structure of a seventh embodiment of a cable and sheath tube suspension tube according to the present invention will be described. The same components as those in the first and sixth embodiments are denoted by the same reference numerals, and the description is omitted.

In this embodiment, the bolt member 5 also serves as a reinforcing member for increasing the wall thickness of the tube wall 1a of the tube 1 and an insert capable of engaging with the engaging portion 2a provided on the hook 2. The bolt member 5 is detachably provided by being screwed into an outer insert 6 embedded in the tube wall 1a of the tube 1 from outside the tube 1.

A thread groove 6a is formed inside the outer insert 6 so as to penetrate the outer insert 6. When the pipe 1 is formed of a fume pipe, a hard vinyl chloride pipe, or FRP, the pipe 1 At the time of manufacturing the tube, a bolt provided on the mold side is screwed and fastened to the thread groove 6a to fix the mold of the tube 1 and the outer insert 6, and the outer insert 6 is integrally formed when the tube 1 is formed. It is designed to be buried inside the wall 1a.

On the outer peripheral surface of the outer insert 6, there is formed a projection 6b consisting of a rib arranged in the axial direction and a bush arranged in a direction perpendicular to the axis.
As a result, the outer insert 6 is firmly locked and fixed to the tube wall 1a.

At one end of the bolt member 5, there is provided an insert 3 consisting of a bolt which can be screwed into the screw groove 6a of the outer insert 6, and the hook 2 is inserted into the screw groove 3a formed inside the insert 3. Engaging portion 2a composed of bolts
Are screwed together and fixed.

When the hook 2 is attached to the pipe wall 1a of the pipe 1 in the above configuration, first, the rubber packing 7 and the washer 8 are inserted into the outer periphery of the bolt portion which becomes the insert 3 of the bolt member 5 at a factory or a site. And the pipe wall 1 of the pipe 1
After the bolts are screwed into the thread groove 6a of the outer insert 6 buried in a from the outside of the pipe 1 and fixed, the pipe 1 is connected and the bolt of the hook 2 is screwed into the thread groove 3a of the insert 3. Is fixed by screwing.

According to the above configuration, the wall thickness of the pipe wall 1a of the pipe 1 can be increased and reinforced only by the operation of screwing the bolt member 5 also serving as a reinforcing member to the outer insert 6.
The work of attaching the reinforcing member is easier than in the sixth embodiment. Other configurations are the same as those of the first and sixth embodiments, and the same effects can be obtained.

Next, referring to FIGS. 13 and 14, a description will be given of a configuration of an eighth embodiment of a cable and sheath tube suspension tube according to the present invention. The same components as those in the first and seventh embodiments are denoted by the same reference numerals, and description thereof is omitted.

In this embodiment, when the pipe 1 is a hard vinyl chloride pipe or a steel pipe, the outer insert 6 of the seventh embodiment is used.
Are omitted, and a thread groove 1f penetrating through the tube wall 1a is formed in the tube wall 1a of the tube 1 itself.

When the hook 2 is attached to the pipe wall 1a of the pipe 1 in the above configuration, first, the rubber packing 7 and the washer 8 are inserted into the outer periphery of the bolt portion which becomes the insert 3 of the bolt member 5 at a factory or a site. And the pipe wall 1 of the pipe 1
After the bolt portion is screwed and fixed to the thread groove 1f formed from the outside of the tube 1 by screwing, the tube 1 is connected and engaged with the thread groove 3a of the insert 3 by the bolt of the hook 2. The portion 2a is fixed by screwing.

With the above structure, the wall thickness of the pipe wall 1a of the pipe 1 can be increased and reinforced only by screwing the bolt member 5 also serving as a reinforcing member into the thread groove 1f of the pipe wall 1a. Compared with the sixth embodiment, the number of parts can be reduced by omitting the outer insert 6, so that the cost of parts and the number of assembling steps can be reduced, and the cost can be reduced. Other configurations are the same as those of the first and seventh embodiments, and similar effects can be obtained.

Next, the configuration of a ninth embodiment of a cable and sheath tube suspension tube according to the present invention will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the present embodiment, a through hole 1g is formed in the tube wall 1a of the tube 1, and the insert 3 is inserted and buried in the through hole 1g. The outer peripheral surface of the engaging portion 2a of the hook 2 is formed as a flat surface, and when the engaging portion 2a is inserted into the through hole 3f provided inside the insert 3, the insert 3 expands. It is adapted to be locked to the tube wall 1a.

The insert 3 is provided on the inner wall surface 1b of the tube wall 1a.
The end on the side is integrally formed in a cylindrical shape, and the end on the outer wall surface 1c side is divided into a plurality of pieces 3d. A tapered surface 3e formed so as to become higher toward the outside in the direction is formed.

A tapered surface 1h extending radially outward of the tube 1 is formed at a position corresponding to the plurality of pieces 3d of the insert 3 at a part of the through hole 1g radially outside the tube 1. ing.

When the hook 2 is attached to the pipe wall 1a of the pipe 1 in the above configuration, first, the insert 3 is inserted from the outside of the pipe 1 into a through hole 1g previously provided in the pipe wall 1a of the pipe 1 at a factory or site. Is inserted and fitted, and the engaging portion 2a of the hook 2 is inserted into the through hole 3f of the insert 3 and fitted.

At this time, the engaging portion 2a of the hook 2 slides in contact with the tapered surface 3e of the piece 3d to expand the piece 3d, and the back surface of the piece 3d is pressed against the tapered surface 1h of the through hole 1g. It is locked and fixed.

According to the above configuration, the hook 2 can be fixed by one touch only by pushing the hook 2 into the insert 3, so that the mounting workability is improved. Other configurations are the same as those of the first embodiment, and the same effects can be obtained.

Next, referring to FIGS. 17 and 18, a description will be given of a configuration of a tenth embodiment of a cable and sheath tube suspension tube according to the present invention. Note that the same components as those in the first and ninth embodiments are denoted by the same reference numerals, and description thereof is omitted.

In this embodiment, as in the ninth embodiment, a through hole 1g is formed in the tube wall 1a of the tube 1, and a recess contact portion 1d is formed on the outer wall surface 1c of the tube 1 in the through hole 1g. Is formed. In the same manner as in the ninth embodiment, flanges 3g are provided at positions corresponding to the concave contact portions 1d formed on the outer wall surface 1c of the pipe 1 at the outer ends of the plurality of divided pieces 3d of the insert 3 respectively. Is provided.

When the hook 2 is attached to the pipe wall 1a of the pipe 1 in the above configuration, first, the insert 3 is inserted from the outside of the pipe 1 into a through hole 1g previously provided in the pipe wall 1a of the pipe 1 at a factory or a site. 3g on the piece 3d of the insert 3
Is inserted into the recess abutment portion 1d until it is locked. The engagement portion 2a of the hook 2 is inserted into the through hole 3 of the insert 3.
Insert and fit into f.

At this time, the engaging portion 2a of the hook 2 comes into contact with and slides on the tapered surface 3e of the piece 3d, thereby expanding the piece 3d. The back surface of the piece 3d is pressed against the side wall of the through hole 1g and the flange is pressed. Part 3
g is pressed into contact with the side wall of the recess abutment portion 1d to be locked and fixed.

According to the above structure, the hook 2 can be fixed by one-touch only by pushing it into the insert 3, so that the mounting workability is improved and the insert 3 is inserted into the through hole 1 of the pipe 1.
g, the flange 3g provided on the piece 3d of the insert 3 is brought into contact with the recess abutment 1d provided on the outer wall surface 1c of the tube 1 to regulate the insertion position of the insert 3, The insert 3 can be inserted at a stable position.

The other configuration is the same as in the first and ninth embodiments, and the same effects can be obtained.

[0080]

Since the present invention has the above-described configuration and operation, it has good workability even when a worker attaches a large-diameter pipe, and can easily work with a small-diameter pipe using a robot.
It is possible to provide a cable having a simple structure and a reduced cost of parts and a suspension tube for a sheath tube.

[Brief description of the drawings]

FIGS. 1A and 1B are diagrams showing a configuration of a first embodiment of a cable and a sheath tube suspension tube according to the present invention.

FIGS. 2A to 2C are diagrams showing a configuration of a main part of the first embodiment.

FIG. 3 shows a second embodiment of a suspension tube for a cable and a sheath tube according to the present invention.
It is a figure showing composition of an embodiment.

FIGS. 4A and 4B are diagrams showing a configuration of a third embodiment of a cable and a sheath tube suspension tube according to the present invention.

FIGS. 5A and 5B are diagrams showing a configuration of a fourth embodiment of a cable and a sheath tube suspension tube according to the present invention.

FIGS. 6A to 6C are diagrams showing a configuration of a main part of a fourth embodiment.

FIGS. 7A and 7B are diagrams showing a configuration of a fifth embodiment of a cable and a sheath tube suspension tube according to the present invention.

FIGS. 8A and 8B are diagrams showing a configuration of a fifth embodiment of a cable and a sheath tube suspension tube according to the present invention.

FIGS. 9A and 9B are diagrams showing a configuration of a sixth embodiment of a cable and a sheath tube suspension tube according to the present invention.

FIGS. 10A and 10B are diagrams illustrating a configuration of a main part of a sixth embodiment.

11A and 11B are diagrams showing a configuration of a seventh embodiment of a cable and a sheath tube suspension tube according to the present invention.

12A and 12B are diagrams illustrating a configuration of a main part of a seventh embodiment.

FIGS. 13A and 13B are diagrams showing a configuration of an eighth embodiment of a suspension pipe for a cable and a sheath pipe according to the present invention.

FIGS. 14A and 14B are diagrams illustrating a configuration of a main part of an eighth embodiment.

FIGS. 15A and 15B are diagrams showing a configuration of a ninth embodiment of a cable and a sheath tube suspension tube according to the present invention.

FIGS. 16A and 16B are diagrams illustrating a configuration of a main part of a ninth embodiment.

FIGS. 17 (a) and (b) are diagrams showing a configuration of a tenth embodiment of a cable and a sheath tube suspension tube according to the present invention.

FIGS. 18A and 18B are diagrams illustrating a configuration of a main part of a tenth embodiment.

FIG. 19 is a diagram illustrating a conventional example.

FIG. 20 is a diagram illustrating a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pipe 1a ... Pipe wall 1b ... Inner wall surface 1c ... Outer wall surface 1d ... Concave contact part 1f ... Screw groove 1g ... Through hole 1h ... Tapered surface 2 ... Hook 2a ... Engaging part 2b ... Flange part 2c ... Shaft 2d ... Lid member 2f ... end 2g, 2h ... flat plate 2i ... countersunk bolt 2j ... through hole 2k ... leaf spring 2l ... pin 3 ... insert 3a, 3b ... screw groove 3c ... projection 3d ... piece 3e ... taper surface 3f ... through hole 3g ... Flange part 4 ... Reinforcing member 5 ... Bolt member 6 ... Outer insert 6a ... Screw groove 6b ... Protrusion 7 ... Rubber packing 8 ... Washer

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Yu Murase 1-22-2, Nishi-Shinjuku, Shinjuku-ku, Tokyo Haneda Hume Kanko Co., Ltd. (72) Inventor: Akira Nobunaga 1-22-2, Nishi-Shinjuku, Shinjuku-ku, Tokyo No. Haneda Hume Pipe Co., Ltd. (72) Inventor Yoshiaki Ishii 5-33-11 Shimbashi, Minato-ku, Tokyo Inside Japan Hume Pipe Co., Ltd.

Claims (11)

[Claims] 1. A cable for suspending and laying a cable for communication and power or a sheath for accommodating the cable for communication and power in a pipeline for water supply and sewerage buried in the ground. A pipe for suspending a cable or a sheath tube, wherein an insert capable of engaging with an engaging portion provided on a hook for suspending the cable or the sheath tube is embedded in a tube wall. 2. The cable according to claim 1, wherein a flange portion is provided at an outer end portion of the insert, and the flange portion is engaged with an abutting portion provided on an outer wall surface of the pipe. Sheath tube suspension tube. 3. The cable or sheath according to claim 1, wherein a reinforcing member for increasing the wall thickness of the tube wall is provided at a position where the insert is embedded in the tube wall. Pipe suspension tube. 4. The reinforcing member comprises a bolt member which can be screwed to the pipe wall or an insert embedded in the pipe wall and can be engaged with an engaging portion provided on the hook. The suspension pipe for a cable and a sheath pipe according to claim 3, wherein the cable and the sheath pipe are suspended. 5. An engaging portion provided on the hook is a bolt, and the insert is constituted by a nut which can be screwed to the bolt.
The cable or sheath tube according to the above item. 6. The pipe insert according to claim 1, wherein the insert is expanded and locked to the tube wall by inserting an engaging portion provided on the hook. Cable, sheath tube suspension tube. 7. The suspension tube for a cable or a sheath tube according to claim 1, wherein the hook has a ring-shaped suspension portion. 8. The cable / sheath suspension tube according to claim 7, wherein the hook is formed of an I-bolt having a ring-shaped suspension portion. 9. A suspension tube for a cable or a sheath tube according to claim 7, wherein the ring-shaped suspension portion of the hook is configured to be openable and closable. 10. The cable or sheath tube suspension tube according to claim 1, wherein the hook has a flat or rod-shaped suspension portion. 11. The flat suspension portion is configured to be housed in a position near an inner wall surface of a pipe.
4. The suspension tube of the cable and the sheath tube according to 1.