JP2000205455A - Nozzle stub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arrange a protective pipe of cables in an outer pipe without using a roller, a carriage, etc. SOLUTION: A nozzle stub 3 is made to smoothly slide in an outer pipe 20 without using a roller and a carriage by providing a plural number of pipe fitting recessed parts 5, 6, 7, 8, 9 opened to the outside from a peripheral edge of a segmental circular plate type body 4 and a pipe fitting recessed part 10 communicated to the inside of the body 4 by the pipe fitting recessed parts and a communicating part 11 and making at least an outer peripheral shape of the lower side in a shape roughly to run along an inner peripheral shape of an outer pipe 20 in the inside of which a protective pipe 1 is arranged in a state of focusing a plural number of the protective pipes 1 by fitting the protective pipes of cables in each of the fitting recessed parts 5, 6, 7, 8, 9, 10 and winding and installing a string body 3B or a fixing band.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle for collecting a plurality of protective tubes for cables such as optical fibers and communication cables.

[0002]

BACKGROUND OF THE INVENTION In order to dispose the above protective tube underground, a pipe groove is dug at a place where the protective tube is provided, and hand holes are provided at predetermined intervals in the pipe groove. A method is employed in which an outer tube is inserted between the tubes and the protective tube is provided in the outer tube. The backfill of the pipe groove is performed when the outer tube is inserted between the hand holes, when the protection tube is provided in the outer tube, or when cables are provided in the protection tube.

[0003]

2. Description of the Related Art Conventionally, in order to arrange a protective tube (1) in an outer tube (20), as shown in FIG. 23 and FIG. A plurality of unit protection tubes (1) are bundled into a unit tube bundle (205), and the unit tube bundle (205) is connected to the outer tube (2) through a hand hole with a wire (26).
A method is adopted in which the connection is made sequentially within 0). In this case, in order to reduce the pull-in resistance of the tube bundle (205), an iron pipe (204) is laid as a rail at the bottom of the outer pipe (20), and the roller (206) is placed on the iron pipe (204). The tube bundle
The nozzle (203) of (205) is placed and pulled by the wire (26) (JP-A-6-265048). As another method, the tube bundle (20
Put the nozzle (203) of (5) on the cart (207) and pull it with the wire (26).

[0004]

[Problems to be Solved by the Invention] In the above conventional method,
A rail such as an iron pipe (204) is laid in the outer pipe (20), and a roller (206) to roll on it and a bogie (207) must be prepared. In addition, there is a problem that it is necessary to insert them into the outer tube (20).

[0005]

According to the present invention, as a means for solving the above-mentioned conventional problems, a plurality of pipe fitting recesses (5, 6) opened outward from the periphery of the plate-like body (4). , 7,8,9)
Protective tubes for cables are provided in each fitting recess (5, 6, 7, 8, 9).
(1) is fitted, a plurality of the protective tubes (1) are bundled, and a string (3B) is wound around the peripheral surface.At least the outer peripheral shape on the lower side is such that the protective tube (1) is inside. The nozzle (3) and the plate-like body (34) having a shape substantially along the inner peripheral shape of the outer tube (20) to be arranged.
Pipe fitting recesses (3
5, 36, 37, 38, 39, 40, 41), and a fixed band (46) is integrally extended from the periphery of the main body (34), and each pipe fitting concave portion (35,
36, 37, 38, 39, 40, 41) are fitted with a protective tube (1) for cables and the like, a plurality of the protective tubes (1) are bundled, and a fixing band (46) is wound around the outside thereof. Providing a nozzle base (33) in which at least the lower outer peripheral shape of the outer tube (20) in which the protective tube (1) is disposed is substantially in line with the inner peripheral shape of the outer tube (20) disposed therein. It is. The main body (34) is further provided with one or more pipe fitting recesses (42) on the inner side, and the pipe fitting recess (42) is provided in the main body (3).
Pipe fitting recess (38) provided from the periphery of 4) and communication section (4
It may be communicated by 3). According to a preferred embodiment of the present invention, the communication portion (11) is filled with a filling piece (12), and furthermore, an inner periphery of the pipe fitting recess (5, 6, 7, 8, 9, 10). Is set in a range of 190 ° to 300 °, and the protective tube (1) further includes a convex ring portion (1A) and a concave groove portion.
(1B) are alternately arranged corrugated flexible tubes, and the inner periphery of the fitting recesses (5, 6, 7, 8, 9, 10) has a concave groove (1B) of the protective tube (1). This is an embodiment in which ribs (5A, 6A, 7A, 8A, 9A, 10A) which engage with the bosses are formed. The material of the nozzle (3) is preferably a polyolefin resin having a low coefficient of friction.

[0006]

[Function] A protective tube (1) for cables is fitted into each fitting recess (5, 6, 7, 8, 9, 10) provided in the main body (4) of the nozzle (3). 2. A plurality of protective tubes (1) are focused by means of
In the case of the nozzle stub (3), a string body (3B) is wound around the outer periphery, and in the case of the nozzle stub (33) of claim 4, a fixing band is wrapped around the outer periphery.
(46) is wound. In this state, the lower outer peripheral shape of the nozzle (3) conforms to the inner peripheral shape of the outer tube (20) in which the protective tube (1) is disposed. (15) to the outer tube (2
When pulling in 0), the pulling resistance becomes small. The fitting recess
(5,6,7,8,9,10) center angle α of the inner circumference is 190 ° ≦ α ≦ 30
When the angle is set to 0 °, the protection tube (1) can be smoothly fitted into the fitting recess (5, 6, 7, 8, 9, 10), and the protection tube (1) 1) is firmly fixed in the fitting recesses (5, 6, 7, 8, 9, 10). When the protective tube (1) is a corrugated flexible tube in which convex ring portions (1A) and concave groove portions (1B) are alternately arranged, fitting concave portions (5, 6, and 5) of the main body (4) are provided. (7,8,9,10)
Ribs (5A, 6A, 7A, 8A, 9A, 10A) that engage with the concave grooves (1B) of (1)
Is formed, the protective tube (1) is focused and fixed without falling out of the nozzle (3). Further, when the material of the nozzle (3) is a polyolefin resin having a low friction coefficient, the tensile resistance of the tube bundle (15) is further reduced.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to an embodiment shown in FIGS. 1 to 11. The flexible protective tube (1) shown in FIG. A collar (2) is fitted from one end to the rear end of (1), and six pipes are bundled at upper and lower ends by three (3) at both ends and the center.

As shown in FIG. 2, the nozzle (3) is a plate-shaped main body.
(4), a plurality of (five) outer tube fitting recesses (5, 6, 7, 8, 9) provided from the periphery of the plate-shaped body (4); ), One inner pipe fitting recess (1
0), the inner pipe fitting concave portion (10) and the outer pipe fitting concave portion (7) immediately below the inner pipe fitting concave portion (10) communicate with each other by a communication portion (11),
At the center of the inner circumference of each pipe fitting recess (5, 6, 7, 8, 9, 10), a rib (5A,
6A, 7A, 8A, 9A, and 10A). And the communication part (1
A filling piece (12) is fitted into 1), and ribs (12A, 12A) are also formed at the center of the upper and lower surfaces of the filling piece (12). As shown in FIG. 4, a pair of left and right recesses (13, 13) are formed on the upper surface of the nozzle (3).
In 3), banding pins (13A, 13A) are passed.
Further, the plate-shaped main body (4) has a wire through hole (3A, 3A) for preventing elongation.
A) is provided as a pair of left and right.

[0009] Six flexible protective tubes (1) are provided by the nozzle (3).
In order to converge the pipe fitting recesses (5, 6,
The flexible protective tube (1) is fitted to (7, 8, 9, 10). The flexible pipe (1) is fitted into the inner pipe fitting recess (10) from the outer pipe fitting recess (7) immediately below the inner pipe fitting recess (10), and the inner pipe fitting recess ( 10) with the flexible protective tube (1),
The filling piece (12) is fitted to (11).

When fitting the flexible protective tube (1) into each of the pipe fitting recesses (5, 6, 7, 8, 9, 10), the pipe fitting recesses (5, 6, 7, 8, 8, 9, 10), the center angle α of the inner circumference is 190 ° ≦ α ≦ 300 °, preferably 2
If 10 ° ≦ α ≦ 230 °, the flexible protective tube (1) can be smoothly fitted into the tube fitting recess (5, 6, 7, 8, 9, 10), and The fitting recesses (5, 6, 7, 8, 9, 10) are firmly fixed.

After fitting the flexible protective tube (1) into each of the tube fitting recesses (5, 6, 7, 8, 9, 10), a string is formed around the nozzle (3). A band (3B) is wound, and the band (3B) is hung on pins (13A, 13A) of recesses (13, 13) on the upper surface of the nozzle (3),
Its end is fastened by buckle (3C).

Thus, six flexible protective tubes are attached to the nozzle (3).
In a state in which (1) is converged, as shown in FIG. 3, the outer peripheral shape of the lower side of the nozzle (3) has an outer tube (2) on which the flexible protective tube (1) is disposed.
The shape is substantially along the inner peripheral shape of (0).

As shown in FIG. 5, the flexible protective tube (1) is a corrugated flexible tube in which convex ring portions (1A) and concave groove portions (1B) are alternately arranged. ) Are the fitting recesses (5, 6, 7, 8,
9, 10), each pipe fitting recess (5, 6, 7, 8, 9, 1)
The ribs (5A, 6A, 7A, 8A, 9A, 10A) of (0) engage with the concave grooves (1B) of the flexible protective tube (1), and thus the flexible protective tube (1) is It is focused and fixed without falling out to the nozzle (3).

As shown in FIG. 6, both ends of the collar (2) are slightly enlarged in diameter, and an engaging projection ring (2A) is formed inside the center. A packing ring (14) is attached to the concave groove (1B) at the end of the flexible protective tube (1), and the end of the flexible protective tube (1) bisects the convex ring (1A). The end of the flexible protective tube (1) is inserted into the collar (2) until the end surface of the flexible protective tube (1) comes into contact with the central engaging ring (2A) of the collar (2). The collar (2) is fixed to the flexible protective tube (1) by the frictional force between the packing ring (14) of the flexible protective tube (1) and the inner wall of the collar (2). The packing ring (14) is tightly attached to the inner wall of the collar (2) to provide a sealing property to the connection structure as described above, and also the flexible protective tube (1) is inserted into the collar (2) by the frictional force. It also serves to fix it.

[0015] Even if a large number of such unit pipe bundles (15) are accumulated at the construction site, they take up little space and hardly hinder traffic on the side of the road. For example, as shown in FIG. 7, a pipe groove (16) is dug on the side of the highway, and a hand hole (17) is provided at a predetermined interval in the pipe groove (16). The joint (1) is connected to the contact (18) of (17).
The root end of 9) is inserted and fixed, and one hand hole (1
One end of an outer tube (20) is connected to the joint (19) of (7), and another outer tube (2) is connected to the outer tube (20) via a coupling (not shown).
0) is connected, and thus a plurality of outer tubes (20) are connected to reach the other handhole (17).
The end of (20) is connected to the joint (19) of the handhole (17). In this way, the outer tube (20) is inserted between the hand holes (17). The outer tube (20) has a double structure consisting of an outer tube (20C) and an inner tube (20D) as shown in FIG.
The (20C) has a convex ring (20A) and a concave groove (20B), but the inner tube (20D) has no irregularities and the inner circumference is smooth.

As shown in FIG. 7, the most advanced unit tube bundle (15) is connected to one of the hand holes (17) through the outer tube.
Inserted in (20). In that case, the unit tube bundle (15)
As shown in FIG. 9, an elongation preventing wire (21) is inserted between the nozzles (3, 3) at both ends of the wire. As shown in FIG. 10, both ends of the elongation preventing wire (21) are wire loop holes of the nozzles (3, 3) at both ends.
(3A), is folded in two on the outside, is covered with a metal locking collar (22), and is caulked with the locking collar (22) to attach both ends of the wire (21) to the nozzle (3, 3). ).

The state-of-the-art unit tube bundle (15) is provided with pulleys (23, 2).
4) and the slide chute (24A) are introduced into the handhole (17) and the outer tube (20) from the ground via the slide chute (24A). At the tip of the unit tube bundle (15), as shown in FIG. Ingredient
A wire (26) inserted from the other handhole (17) is connected via (25), and the wire (26) is guided by pulleys (27, 28) in the other handhole (17), It is wound on a winch (29).

A state-of-the-art unit tube bundle as described above
(15) is drawn into the outer tube (20) by pulling the wire (26) by the winch (29), but the unit tube bundle (1
The front end of the second unit tube bundle (15) is connected to the rear end of 5). In this case, as shown in FIG. 11, the second unit pipe bundle (15) from the other end of the collar (2) at the rear end of the flexible protective tube (1) of the most advanced unit pipe bundle (15) The distal end of the flexible protective tube (1) is inserted. The collar (2) and the flexible protective tube (1) are fixed to each other by the frictional force of the packing ring (14) of the flexible protective tube (1) at the connecting portion of the unit tube bundle (15) as described above. However, as shown in FIGS. 9 and 10, the elongation preventing wire (21) of the state-of-the-art unit tube bundle (15) is used.
Wire for preventing extension of the rear end of the second unit tube bundle (15)
A retaining wire (30) is inserted between the tip of (21).

As shown in FIG. 10, the retaining wire (30) is attached to the locking collar (22) of the elongation preventing wire (21). That is, the end of the retaining wire (30) is folded in half and inserted into the locking collar (22) attached to the folded end of the elongation preventing wire (21), and the locking collar is inserted. When crimping (22), the wire (30) for retaining is locked and fixed together with the wire (21) for preventing elongation.

In this way, the unit pipe bundles (15) are successively connected, and the six flexible protective tubes (1) are bundled together and drawn into the outer pipe (20) from the handhole (17). At this time, the lower outer peripheral shape of the nozzle (3) of the unit tube bundle (15) is an outer tube (20).
The unit tube bundle (15) smoothly slides on the outer tube (20) without using a track, a roller, a bogie, or the like, since the shape conforms to the smooth inner peripheral shape of the outer tube.

Other than the above method, for example, when connecting and delivering a plurality of outer tubes (20) between the hand holes (17), a unit tube bundle (15) is inserted into each outer tube (20) in advance. The outer tube (2
0) The unit tube bundles (15) inserted in the outer tube (20) may be connected to each other at the same time when they are connected to each other.

FIGS. 12 to 16 show another embodiment of the present invention. As shown in FIG. 12, the nozzle (33) is a plate-shaped main body.
(34) and a plurality (seven) of outer tube fitting recesses (35, 36, 37, 38, 39, 40, 41) provided from the periphery of the plate-shaped main body (34).
And one inner pipe fitting concave portion (42) provided inside the plate-shaped main body (34) and a fixing band (46) integrally extended from a predetermined position of the plate-shaped main body (34). ) And the main body (3
4) The main part of (4) is provided with a recess (34A) through a rib (34B).
The inner pipe fitting concave portion (42) and the outer pipe fitting concave portion (38) immediately below the inner pipe fitting concave portion (42) are communicated by a communication portion (43), and the inner pipe fitting concave portion (42) is A pair of cleavage grooves (44) is provided from the side opposite to the communication portion (43). Each pipe fitting recess (3
5, 36, 37, 38, 39, 40, 41, 42) have a rib (35A, 3
6A, 37A, 38A, 39A, 40A, 41, 42A) are formed, and a screw hole (45) is provided at a predetermined location on the outer periphery of the main body (34).

On the other hand, the fixed band (46) has a hinge portion (4
7, 48) are formed (details are shown in FIG. 13), and the outer tube fitting recesses (35, 36, 3) of the plate-shaped main body (34) are formed.
7,38,39,40,41) and corresponding arcs (49,50,51,52,53,54,
55) are formed, and the arc portions (49, 50, 51, 52, 53, 54, 5) are formed.
A rib (49A, 50A, 51A, 52A, 53A, 54A, 55A) is formed inside 5), and a tip (56) of the fixing band (46) is bent outward and in the vicinity thereof. An engagement hole (57) is provided.

In the nozzle (33), since the fixed band (46) is provided with two hinge portions (47, 48), FIG.
2. As shown in FIG. 14, the fixing band (46) can be bent and made close to the outer periphery of the plate-shaped main body (34) to be injection-molded with the same synthetic resin as in the previous embodiment. The type becomes compact.

Eight flexible protective tubes (1) are provided by the nozzle (33).
15 and 16, the flexible protective tube (1) is fitted into each of the tube fitting recesses (35, 36, 37, 38, 39, 40, 41). The flexible protective tube (1) is fitted into the inner pipe fitting recess (42) from the outer pipe fitting recess (38) immediately below the inner pipe fitting recess (42), and the communication section (43)
The flexible protective tube (1) is fitted into the inner tube fitting concave portion (42) through the hole. At this time, the cleavage grooves (44, 44) on the opposite side of the communication portion (43) of the inner tube fitting concave portion (42) are slightly elastically deformed in the opening direction, and the flexible protective tube (1) is fitted into the inner tube fitting portion. It is easy to fit into the mating recess (42).

Each pipe fitting recess (35, 34, 37, 38, 39, 40, 41, 42)
When the flexible protective tube (1) is fitted to the
36,37,38,39,40,41,42) the center angle α of the inner circumference is 190 ° ≦
If α ≦ 300 °, desirably 210 ° ≦ α ≦ 230 °, the flexible protective tube (1) can smoothly fit into the tube fitting recesses (35, 36, 37,
38, 39, 40, 41, 42) and firmly fixed in the fitting recesses (35, 36, 37, 38, 39, 40, 41, 42). Same as the example.

Each tube fitting recess (35, 36, 37, 38, 39, 40, 41, 42)
After the flexible protective tube (1) is fitted to the fixed band (4), a fixed band (46) is wound around the outside of the nozzle body (34), and the fixed band (4) is
The locking piece (58) standing upright at the root end of the fixing band (46) is engaged with the engaging hole (57) of the tip (56) of (6), and the screw of the main body (34) is screwed. The screw (60) is fixed to the hole (45) through the screw hole (59) of the fixing band (46), and the fixing band (46) is fixed around the outer periphery of the main body (34) in this way. Is done.

Thus, eight flexible protective tubes are attached to the nozzle (33).
In the state where (1) is focused, as shown in FIG. 15, the nozzle (3)
Has an outer peripheral shape substantially in line with the inner peripheral shape of the outer tube (20) in which the flexible protective tube (1) is disposed.

As in the previous embodiment, the flexible protective tube (1) is a corrugated flexible tube in which convex ring portions (1A) and concave groove portions (1B) are alternately arranged. ) Are the fitting recesses (35, 36, 37,
38, 39, 40, 41, 42), and each pipe fitting recess (3
5,36,37,38,39,40,41,42) ribs (35A, 36A, 37A, 38A, 39
A, 40A, 41A, 42A) and each arc (49, 5
0,51,52,53,54,55) ribs (49A, 50A, 51A, 52A, 53A, 54A, 55
A) engages with the concave groove portion (1B) of the flexible protective tube (1), and thus the flexible protective tube (1) is focused and fixed without falling out to the nozzle (33). The tube bundle by the nozzle (33) is also disposed in the outer tube (20) as in the previous embodiment.

FIGS. 17 to 20 show another embodiment of the present invention. As shown in FIG. 17, the nozzle (63) is a plate-shaped main body.
(64), a plurality (five) of outer tube fitting recesses (65, 66, 67, 68, 69) provided from the periphery of the plate-shaped body (64), and the plate-shaped body (64). ) And a fixing band (72) integrally extending from a predetermined location of the plate-shaped main body (64), and the main body ( The main portion of (64) is formed with a recess (64A) through a rib (64B), and the inner pipe fitting recess (70) communicates with the outer pipe fitting recess (67) immediately below. It communicates by the part (71). At the center of the inner periphery of each pipe fitting recess (65, 66, 67, 68, 69, 70), a rib (6
5A, 66A, 67A, 68A, 69A, 70A) are formed.

On the other hand, the fixed band (72) has a hinge portion (73) formed at the root end portion to improve the flexibility by making it thinner, and the outer tube fitting of the plate-shaped main body (64) is performed. Recesses (65, 66, 67, 6
8, 69) are formed corresponding to the arcs (75, 76, 77, 78, 79), and the inside of the arcs (75, 76, 77, 78, 79) has ribs (75A, 7
6A, 77A, 78A, 79A), and the fixed band (72)
The tip (80) is bent inward and has an engagement hole near it.
(81) is provided.

In the nozzle (63), the fixing band (72) is provided with only one hinge portion (73), and as shown in FIG. In the state separated from the main body (64), injection molding is performed using the same synthetic resin as in the previous embodiment.

Six flexible protective tubes (1) are provided by the nozzle (63).
In order to converge, the flexible protective tube (1) is fitted into each of the tube fitting concave portions (65, 66, 67, 68, 69, 70) as shown in FIGS. The flexible tube (1) is fitted into the inner pipe fitting recess (70) from the outer pipe fitting recess (67) immediately below the inner pipe fitting recess (70), and the inner pipe fitting recess ( The flexible protective tube (1) is fitted into 70).

When fitting the flexible protective tube (1) into each of the tube fitting recesses (65, 66, 67, 68, 69, 70), the tube fitting recesses (65, 66, 67,
68,69,70) is 190 ° ≦ α ≦ 300 °
Desirably, if 210 ° ≦ α ≦ 230 °, the flexible protective tube (1) can be smoothly fitted into the tube fitting recess (65, 66, 67, 68, 69, 70). , And the fitting recesses (65, 66, 67, 68, 6
9,70) is the same as in the previous embodiment.

After fitting the flexible protective tube (1) into each of the tube fitting recesses (65, 66, 67, 68, 69, 70), a fixing band is provided around the outside of the nozzle body (64). (72) is wound, and a locking piece (74) standing upright at the distal end of the main body (64) is engaged with the engaging hole (81) of the distal end (80) of the fixing band (72). By doing so, the fixing band (72) is fixed around the outside of the main body (64).

As described above, six flexible protective tubes are attached to the nozzle (63).
In the state where (1) is focused, as shown in FIG.
The outer peripheral shape on the lower side is an outer tube on which the flexible protective tube (1) is disposed.
The shape is substantially in line with the inner peripheral shape of (20).

As in the previous embodiment, the flexible protective tube (1) is a corrugated flexible tube in which convex ring portions (1A) and concave groove portions (1B) are alternately arranged. ) Are concave fittings (65, 66, 67,
68, 69, 70), each pipe fitting recess (65, 66, 6
7,68,69,70) ribs (65A, 66A, 67A, 68A, 69A, 70A) and fixed band (72) arcs (75,76,77,78,79).
A, 76A, 77A, 78A, 79A) are concave grooves (1B) of the flexible protective tube (1).
And the flexible protective tube (1) is thus attached to the nozzle (6).
Focused and fixed without getting out in 3). The tube bundle formed by the nozzle (63) is also disposed in the outer tube (20) as in the previous embodiment.

The present invention does not particularly limit the number of the flexible protective tubes of the nozzle base. In the present invention, for example, a nozzle base (83) for collecting nine tubes as shown in FIG. 21 or as shown in FIG. A nozzle (103) for focusing 12 tubes is also provided.

A plate-shaped main body (84) of a nozzle (83) shown in FIG. 21 has six outer pipe fitting recesses (85, 86, 87, 88, 89, 90) and three inner pipe fittings. Recesses (91, 92, 93) are provided, the outer pipe fitting recess (85), the inner pipe fitting recess (91), the outer pipe fitting recess (90)
And the inner pipe fitting concave portion (92), and the outer pipe fitting concave portion (87) and the inner pipe fitting concave portion (93) are communicated by communication portions (94, 95, 96), respectively. ) Are provided with two thin hinge portions (98, 99) at a root end and an intermediate portion. .

The plate-shaped main body (104) of the nozzle (103) shown in FIG.
Has nine outer tube fitting recesses (105, 106, 107, 108, 109, 110, 1
11, 112, 113) and three inner tube fitting recesses (114, 115, 116) are provided, the outer tube fitting recess (107) and the inner tube fitting recess (114), the outer tube fitting recess (112) and the inner tube fitting Mating recess (1
15), and the outer pipe fitting recess (109) and the inner pipe fitting recess (1
16) are communicated with each other by communicating portions (117, 118, 119), and the fixed band (120) is provided with two thin hinge portions (121, 122) at a root end and an intermediate portion.

The flexible protective tube and the outer tube of the present invention are made of a synthetic resin having a low coefficient of friction such as polyethylene and polypropylene, and the nozzle is made of a synthetic resin such as polypropylene, polyethylene and ABS resin. The synthetic resin may be a recycled product.

[0042]

When the flexible protective tube (1) is drawn into the outer tube (20) from the handhole (17), at least the lower portion is required while the flexible protective tube (1) is focused on the nozzle (3). Since the outer peripheral shape on the side is a lower outer peripheral shape substantially along the inner peripheral shape of the outer tube (20), the flexible protective tube can be used without using a roller or a bogie.
(1) can be smoothly pulled in the outer tube (20). Therefore, a small pulling power is required, and there is no possibility of breakage of a wire or the like for pulling.

[Brief description of the drawings]

 1 to 11 show one embodiment of the present invention.

FIG. 1 is a side view of a unit tube bundle.

FIG. 2 is a front view of a nozzle body.

FIG. 3 is a front view of a tube focused state.

FIG. 4 is a partial upper perspective view of a nozzle in a focused state;

FIG. 5 is a sectional view taken along line AA in FIG. 3;

FIG. 6 is a sectional view of an end portion of a flexible protective tube.

FIG. 7 is an explanatory view of a piping state.

FIG. 8 is a partial sectional side view of the outer tube.

FIG. 9 is an explanatory view showing a connected state of unit tube bundles.

FIG. 10 is a partial explanatory view of a connection between an elongation preventing wire and a detachment preventing wire.

FIG. 11 is a sectional side view of a flexible protective tube connecting portion. FIGS. 12 to 16 show another embodiment of the present invention.

FIG. 12 is a front view of an unmanaged state of the nozzle (injection molding state)

FIG. 13 is an enlarged side view of a hinge portion.

FIG. 14 is a perspective view showing a state where the nozzle is not bundled (injection molding state)

FIG. 15 is a front view of a state in which a nozzle is focused.

FIG. 16 is a perspective view showing a state in which a nozzle is focused. FIGS. 17 to 20 show still another embodiment of the present invention.

FIG. 17 is a front view of a state in which the nozzle is not focused (injection molding state).

FIG. 18 is a perspective view showing a state in which the nozzle is not focused.

FIG. 19 is a front view of a state where a nozzle is focused.

FIG. 20 is a perspective view showing a state in which the nozzle is focused.

FIG. 21 is a front view of still another embodiment of the present invention.

FIG. 22 is a front view of still another embodiment of the present invention.

FIG. 23 is a front view for explaining a pipe state of a conventional example.

FIG. 24 is a side view for explaining a piping state of a conventional example.

[Explanation of symbols]

1 Flexible protection tube 1A Convex ring 1B Concave groove 3 Stub 3A Wire through hole for prevention of elongation 3B Band (string) 4 Plate body 5,6,7,8,9,10,35,36,37, 38,39,40,41,42 Tube fitting recess 5A, 6A, 7A, 8A, 9A, 10A Rib 11,43,71,94,95,96,117,118,119 Communication part 12 Filling piece 35A, 36A, 37A, 38A, 39A , 40A, 41A, 42A Rib 46 Fixing band 65,66,67,68,69,70 Pipe fitting recess 75A, 76A, 77A, 78A, 79A Rib 85,86,87,88,89,90 Pipe fitting recess 105,106,107,108,109,110,111,112,113 Tube fitting recess

Claims (8)

[Claims] 1. A plurality of pipe fitting recesses which are open outward from the peripheral edge of a plate-shaped main body, and a plurality of protection tubes such as cables are fitted into each of the pipe fitting recesses to connect the plurality of protection tubes. In a state where the bundle is bundled and the cord body is wound around the peripheral surface, at least the outer peripheral shape on the lower side has a shape substantially conforming to the inner peripheral shape of the outer tube in which the protective tube is disposed. Nozzle 2. The main body is further provided with one or more pipe fitting recesses on the inner side, and the pipe fitting recess is communicated with a pipe fitting recess provided from a peripheral edge of the main body by a communication portion. The nozzle according to claim 1, wherein 3. The nozzle according to claim 2, wherein the communicating portion is filled with a filling piece. 4. A plurality of tube fitting recesses which are open outward from the periphery of the plate-shaped main body, and a fixing band is integrally extended from the periphery of the main body, and a cable is connected to each tube fitting recess. A plurality of the protective tubes are bundled by fitting a kind of protective tube, and at least a lower outer peripheral shape of an outer tube in which the protective tube is disposed inside in a state in which a fixing band is wound around the protective tube. A nozzle characterized by having a shape substantially along the inner peripheral shape. 5. The body is further provided with one or more pipe fitting recesses on the inner side, and the pipe fitting recess is communicated with a pipe fitting recess provided from a peripheral edge of the main body by a communication portion. The nozzle according to claim 4, wherein 6. A central angle of an inner periphery of the pipe fitting concave portion is 190 ° to
The nozzle according to any one of claims 1 to 5, wherein the nozzle is set in a range of 300 °. 7. The protective tube is a corrugated flexible tube in which convex ring portions and concave groove portions are alternately arranged, and a rib for engaging with the concave groove portion of the protective tube is provided on the inner periphery of the tube fitting concave portion. The nozzle according to claim 1, wherein the nozzle is formed. 8. The nozzle according to claim 1, wherein the material of the nozzle is a polyolefin resin having a low coefficient of friction.