JP7569148B2 - Separator parts, cable protection tubes - Google Patents

Description

This invention relates to a separator member for dividing the inside of a protective tube body to form a cable protective tube, and a cable protective tube.

As is well known, for example, communication cables such as telephone lines are made up of multiple trunk cables that connect telephone exchanges, and multiple drop cables that branch off from the trunk cables and are pulled into buildings such as homes and stores.

In recent years, a technique for maintaining the appearance of roads by storing cables, including such communication cables, in cable protection conduits and burying them under the road surface is becoming common.
When constructing such a cable protection conduit, a single-pipe separate type cable protection pipe that can be buried under the road surface of a narrow road is widely used (for example, see Patent Document 1).

In the one-pipe separate type cable protection pipe, the internal space of the cable protection pipe is divided into a first pipe line and a second pipe line (for example, an upper pipe line and a lower pipe line) by a separator member.
For example, the upper duct accommodates a plurality of lead-in cables (up to about 20 cables) for each customer, and the lower duct accommodates a plurality of trunk cables.

As shown in FIG. 1 of Patent Document 1, the cable protection pipe includes, for example, a cylindrically formed protection pipe body (11) and a plate-like separator member (15) that is disposed in the protection pipe body (11) along the pipe axis, divides the internal space into an upper pipe line (U) and a lower pipe line (D), and is formed in a generally V-shape and protrudes downward.

The separator member (15), when viewed along the tube axis of the cable protection tube (10), is configured to traverse the protection tube body (11) from left to right to separate the upper tube (U) and the lower tube (D).
The upper duct (U) houses a lead-in cable (12), and the lower duct (D) houses a trunk cable (13).
In addition, between the upper part of the inner surface (11a) of the protective tube main body (11) and the upper side of the plate-shaped portion (partition wall portion) (16) of the separator member (15), a storage space large enough to inscribe a circle having a diameter of at least φ100 mm is required in order to store the pull-in cable in the upper conduit (U).

The separator member (15) is structured so that a recess (retained engagement portion) (22) formed in the leaf spring portion (support wall portion) (17) of the separator member (15) engages with a protrusion portion (retaining engagement portion) (23) of the protective tube body (11) to prevent the separator member (15) from rotating around the tube axis within the protective tube body (11) and to attach it firmly to the inner peripheral surface (11a) of the protective tube body (11).

The protrusions (retaining engagement parts) (23) are formed on opposite sides of the tube axis at 180° to ensure production stability of the protective tube body (11) and to avoid limitations on the up and down directions when installing the cable protective tube (10).

As shown in FIG. 3 of Patent Document 1, the separator members (15) are provided with a separator joint (connecting member) (24) on the underside of the plate-shaped portion (partition wall portion) (16) and the separator joint (24) and the separator members (15) are connected using fastening members such as bolt members or rivets, making it possible to connect adjacent separator members (15).

In areas where the number of participating companies and the number of communications supplies are small and the demand for communications is low, the cable protection pipe (10) of this single-pipe separate system is generally applied with a protection pipe body of nominal diameter 175 (inner diameter φ175 mm).

However, in areas where there is a high demand for communication with the protective pipe body, the inner diameter of the protective pipe body (11) needs to be larger than φ175 mm, and for example, it is desirable for the inner diameter of the protective pipe body (11) to be approximately φ225 mm.

For example, in a protective tube body (11) with an inner diameter of φ175 mm, as shown in FIG. 3 of Patent Document 1, the separator joint (24) is held in a groove formed between the lower surface of the plate-shaped portion (partition wall portion) (16) and the upper surface of a recess (retained engagement portion) (22) formed in the plate spring portion (support wall portion) (17), making it possible to connect the separator joint (24) to the separator member (15).

Below, an example of a cable protection tube with an inner diameter of φ225 mm and a single-pipe separation system will be described with reference to FIG. 5. FIG. 5 is a schematic diagram for explaining an example of a cable protection tube with an inner diameter of φ225 mm and a single-pipe separation system, for example, and the reference numeral 500 indicates a cable protection tube.

As shown in FIG. 5, the cable protection tube 500 includes, for example, a cylindrical protection tube body 510 and a separator member 520 that divides the internal space 510S of the protection tube body 510 into an upper pipe line (first pipe line) 511S and a lower pipe line (second pipe line) 512S.

The separator member 520 is formed in a generally V-shaped plate shape when viewed along the tube axis O of the cable protection tube 500, and crosses the inside of the protection tube body 510 from left to right, dividing the internal space of the protection tube body 510 into upper and lower parts, so that a storage space large enough to inscribe a circle with a diameter of φ100 mm is secured in the first pipe 511S.

In addition, the separator member 520 is configured to be held by the protective tube main body 510 by engaging a recess (held engagement portion) 523 formed in the support wall portion 522 with a protrusion portion (holding engagement portion) 511 of the protective tube main body 510.
On the other hand, as described above, the protrusions (retaining engagement portions) 511 are formed on opposite sides of the tube axis O at 180° intervals in order to ensure the stability of the production of the protective tube main body 510 and to avoid limitations on the up and down directions when installing the cable protection tube 500.

JP 2008-017666 A

However, when a separator member 520 is placed in a protective tube main body 510 in which protrusions (retaining engagement parts) 511 are formed at 180° opposite sides of the tube axis O, and which ensures a first pipe interior 511S large enough to inscribe a circle with a diameter of φ100 mm, the distance L0 between the lower surface 521B of the partition wall part 521 and the upper outer surface 523A of the wall part in which the recess (retained engagement part) 523 is formed becomes very large, making it difficult to retain the separator joint 530.

As a result, when connecting the separator members 520 together, it is necessary to reach inside the second pipeline 512S and press the separator joint (connecting member) 530 against the underside of the separator member 520 while connecting them using rivets or the like, making the connection work very difficult.
Furthermore, if a gap is formed between the separator member 520 and the separator joint 530 when connecting them with rivets during the connection work, horseshoe defects such as poor crimping of the rivets may occur, making it impossible to connect them properly.

In addition, if the inner diameter of the cable protection tube is increased, the manufacturing dimensional error will increase, and the width of the separator member will become smaller than the inner diameter of the protection tube body, causing a risk that the engagement between the recess (retained engagement portion) formed in the support wall portion and the protrusion (retaining engagement portion) of the protection tube body will become shallow, making it impossible to stably attach the separator member. Therefore, it is preferable to produce the separator member on a larger size, but in this case, there is a problem that the insertion resistance (friction resistance) increases when the separator member is compressed in the width direction and inserted into the protection tube body.

The present invention was made in consideration of these circumstances, and aims to provide a separator member and cable piping that can be easily and efficiently connected using a separator joint and inserted into the protective pipe body.

In order to solve the above problems, the present invention proposes the following means.
The invention described in claim 1 is a separator member that is arranged along a pipe axis inside a protective pipe body and divides the inside of the protective pipe body into a first pipe line and a second pipe line, and is characterized in that it comprises a partition wall portion that separates the first pipe line and the second pipe line when viewed along the pipe axis, and a pair of support wall portions connected to both ends of the partition wall portion and extending toward the second pipe line along the inner surface of the protective pipe body, and the pair of support wall portions are formed with a retained engagement portion that engages with a retaining engagement portion formed on the protective pipe body and is attached to the protective pipe body, and a convex portion that is arranged on the partition wall portion side of the retained engagement portion and protrudes toward the radially inward direction of the protective pipe body , and a concave portion is formed between the lower surface of the partition wall portion and the convex portion .

According to the separator member of the present invention, when viewed along the pipe axis, it comprises a partition wall portion that separates the first pipe line and the second pipe line, and a pair of support wall portions that are connected to both ends of the partition wall portion and extend toward the second pipe line along the inner surface of the protective pipe body, and since the pair of support wall portions are formed with retained engagement portions, it is possible to efficiently attach the separator member to the protective pipe body by engaging the retained engagement portions formed on the protective pipe body with the retained engagement portions.
In addition, a convex portion is formed which is positioned closer to the partition wall portion than the retained engagement portion and protrudes toward the radially inward direction of the protective tube body, so that when adjacent separator members are connected to each other in the tube axial direction, the separator joint can be stably held between the partition wall portion and the convex portion.
As a result, the separator members can be easily and efficiently connected to each other by the separator joint.
In addition, since a convex portion is formed that protrudes radially inward of the protective tube body, when the separator member is bent inward in the width direction toward the inside of the protective tube body and inserted into the protective tube body, the support wall portion and the retained engagement portion are prevented from deforming in a direction different from the tube axis direction (for example, a direction twisted relative to the tube axis), and the separator member can be easily and efficiently inserted into the protective tube body.

The invention described in claim 2 is the separator member described in claim 1, characterized in that the protrusion has a recess that opens toward the outside in the radial direction of the protective tube body.

According to the separator member of the present invention, a recess is formed in the convex portion which opens radially outwardly of the protective tube body, so that the force that bends the separator member in the width direction toward the inside of the protective tube body can be reduced in the convex portion.
As a result, the separate member can be bent in the width direction with a small force and can be easily and efficiently inserted into the protective tube body.

The invention described in claim 3 is a cable protection pipe including a protection pipe body having a retaining engagement portion formed on the inner peripheral surface, and a separator member disposed inside the protection pipe body along the pipe axis and dividing the inside of the protection pipe body into a first pipe line and a second pipe line, characterized in that the separator member is the separator member described in claim 1 or 2.

The cable protection tube of this invention allows the separator joint to be connected and inserted into the protection tube body easily and efficiently.

The separator member and cable protection tube of this invention allow for easy and efficient connection using the separator joint and insertion into the protection tube body.

1 is a partial cross-sectional view illustrating an example of a schematic configuration of a cable protection tube according to an embodiment of the present invention. 4 is a perspective view illustrating an outline of a separator member and a separator joint at a tube end of a cable protection tube according to one embodiment. FIG. 1 is a schematic configuration diagram illustrating a cable protection tube according to one embodiment, viewed along a tube axis. FIG. 1A and 1B are views illustrating the configuration of a separator member according to one embodiment, viewed along the tube axis, in which (A) is a schematic configuration diagram, and (B) is a diagram illustrating the details of the main parts of a separator joint holding protrusion. 1 is a schematic diagram illustrating an example of a single-pipe separate type cable protection pipe having an inner diameter of φ225 mm. FIG.

<One embodiment>
Hereinafter, a cable protection tube and a separator member according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a partial cross-sectional view illustrating an example of the general configuration of a cable protection tube according to one embodiment, FIG. 2 is an oblique view illustrating the general configuration of a separator member and a separator joint at the tube end of the cable protection tube, FIG. 3 is a schematic configuration diagram viewed along the tube axis illustrating the cable protection tube, FIG. 4 is a diagram viewed along the tube axis illustrating the configuration of the separator member, FIG. 4(A) is a schematic configuration diagram, and FIG. 4(B) is a diagram illustrating the details of the main parts of the separator joint holding protrusion.
1 to 4, reference numeral 100 denotes a cable protection tube, reference numeral 10S denotes an internal space, reference numeral 11S denotes an upper pipe (first pipe), reference numeral 12S denotes a lower pipe (second pipe), reference numeral 110 denotes a protection tube body, reference numeral 120 denotes a separator member, and reference numeral 130 denotes a separator joint.

As shown in Figures 1 to 3, the cable protection conduit is equipped with a single-pipe separate type cable protection pipe 100, and is configured to house cables 150, 160 inside the cable protection pipe 100 and install the cable protection pipe 100 underground 10A, with the aim of protecting the landscape by eliminating utility poles.

The cable protection tube 100 includes, for example, a protection tube main body 110 and a separator member 120 .
Further, the inner space 10S of the cable protection tube 100 is divided by the separator member 120 into an upper pipe line (first pipe line) 11S and a lower pipe line (second pipe line) 12S.

As shown in FIG. 1, the cable protection tube 100 accommodates a communication cable (cable) 150 serving as a lead-in cable in the upper conduit (first conduit) 11S, and a communication cable (cable) 160 serving as a trunk cable arranged in a sheath tube 140 in the lower conduit (second conduit) 12S.

In this embodiment, the protective tube body 110 is formed by extrusion molding a high-strength synthetic resin material such as hard polyvinyl chloride.
In addition, as shown in Figures 1 to 3, the protective tube main body 110 is formed, for example, in a cylindrical shape with a circular cross section when viewed along the tube axis O, and separator retaining protrusions (retaining engagement portions) 112 (112L, 112R) are formed on the inner surface 111 along the tube axis O.

When viewed, for example, along the tube axis O, the separator holding projection (holding engagement portion) 112 has a separator holding projection (holding engagement portion) 112L located on the left side in Figures 2 and 3, and a separator holding projection (holding engagement portion) 112R located on the right side.

The separator holding projections 112L and 112R each protrude from the inner circumferential surface 111 toward the inside in the radial direction of the protective tube body 110, and are rib-shaped protrusions formed along the tube axis O.

The separator holding projection 112L and the separator holding projection 112R are formed, for example, on the inner circumferential surface 111 on opposite sides of the tube axis O at an angle of 180°.
The engaging projection 112 is configured to hold a separator member 120 .
The circumferential positions of the separator holding projection 112L and the separator holding projection 112R on the inner peripheral surface 111 are not limited to circumferential positions 180° opposite each other across the tube axis O, and can be set arbitrarily.

As shown in Figures 2 to 4, when viewed along the tube axis O, the separator member 120 comprises a partition wall portion 121 that separates an upper pipeline (first pipeline) 11S and a lower pipeline (second pipeline) 12S, and a pair of support wall portions 122 that are connected to both ends of the partition wall portion 121 in the width direction and attach the partition wall portion 121 to the inside of the protective tube main body 110.
In this embodiment, the separator member 120 is formed by extrusion molding a flexible and strong synthetic resin material, such as polyvinyl chloride.

When viewed along the tube axis O, the partition wall portion 121 has a flat portion 121A located in the center in the width direction (left-right direction in the figure), and a pair of inclined portions 121 extending diagonally upward (toward the upper pipe line (first pipe line) 11S) from the edges on both sides in the width direction of the flat portion 121A and intersecting with the extension line of the flat portion 121A at an inclination angle θ1.
The flat portion 121A and the inclined portion 121B are formed as elongated rectangular flat plates along the tube axis O.

Further, the end portion of the inclined portion 121 (121L, 121R) opposite to the flat portion 121A is configured to abut against the inner peripheral surface 111 of the protection tube main body 110.
As a result, the partition wall portion 121 is formed into a substantially V-shape that is open to the first pipe line 11S side and has both ends in the width direction in contact with the inner peripheral surface 111 of the protection pipe main body 110 .

The upper surface (first pipe side surface) 121C of the partition wall portion 121 is configured so that, for example, a storage space large enough to inscribe a circle having a diameter of φ100 mm can be secured between the upper surface 111 of the protective pipe body 110 and the inner surface 111 of the protective pipe body 110 in order to store the lead-in cable in the upper pipe (first pipe) 11S.

When viewed along the tube axis O, the pair of support walls 122 are connected, for example, to both ends in the width direction of the partition wall 121 and are formed to extend along the inner circumferential surface 111 of the protective tube body 110 toward the lower pipe (second pipe) 12S.

Furthermore, the pair of support wall portions 122 are formed in a substantially arcuate shape with a curvature slightly smaller than the curvature of the inner circumferential surface 111 of the protection pipe main body 110 when no external force is applied.
As a result, when inserted into the protective tube main body 110, it has the effect of a so-called leaf spring, and an elastic force is generated toward the outside (towards the inner surface 111) of the protective tube main body 110, so that the outer surface of the support wall portion 122 is tightly adhered to the inner surface 111 of the protective tube main body 110.

The pair of support walls 122 are also formed with retained recesses (retained engagement portions) 123 for engaging with the separator retaining protrusions (retaining engagement portions) 112 of the protective tube body 110 to mount the separator member 120 inside the protective tube body 110, and separator joint retaining protrusions (protrusions) 124.

When viewed along the tube axis O, the retained recess (retained engagement portion) 123 protrudes toward the inside of the protective tube body 110 and corresponds complementarily to the outer surface of the separator retaining projection (retaining engagement portion) 112, and is composed of a U-shaped wall portion of the same thickness as the support wall portion 122.

As a result, the retained recess (retained engagement portion) 123 engages with the separator retaining protrusion (retaining engagement portion) 112, thereby firmly attaching the separator member 120 to the inner peripheral surface 111 of the protective tube body 110 and preventing the separator member 120 from rotating around the tube axis O within the protective tube body 110.

The separator joint retaining protrusions (protrusions) 124 (124L, 124R) are positioned closer to the partition wall 121 than the retained recesses (retained engagement portions) 123 (123L, 123R) of the support wall 122 (122L, 122R) and are formed to protrude radially inward of the protective tube body 110.

In addition, by forming a separator joint retaining protrusion (protrusion) 124 on the support wall portion 122, a separator joint retaining recess 125 (125L, 125R) is formed between the lower surface (second pipeline side surface) 121D of the partition wall portion 121 and the separator joint retaining protrusion (protrusion) 124 (124L, 124R).
Then, the separator joint 130 can be inserted into and held in the separator joint holding recesses 125 (125L, 125R).

The depth L1 of the separator joint holding recess 125 is preferably set to 5 mm or more and 20 mm or less, and more preferably set to 5 mm or more and 10 mm or less.
The depth L1 of the separator joint holding recess 125 is expressed as the dimension from the inner surface of the support wall portion 122 to the apex of the separator joint holding protrusion (protrusion) 124 (124L, 124R) as shown in FIG.

The width dimension L2 of the separator joint holding recess 125 is preferably set to be 1 mm or more and 10 mm or less, and more preferably set to be 2 mm or more and 4 mm or less.
As shown in FIG. 4, the width L2 of the separator joint holding recess 125 is represented by the gap width between the lower surface 121D of the partition wall 121 and the separator joint holding protrusions (protrusions) 124 (124L, 124R).

Further, the separator joint holding convex portion (convex portion) 124 ( 124 L, 124 R) has a concave portion 126 U that opens toward the outside in the radial direction of the protection pipe main body 110 formed therein.
The recess 126U is set, for example, so that the separator joint retaining protrusion (protrusion) 124 forms an approximately U-shaped wall portion of the same thickness as the support wall portion 122 from the retained recess (retained engagement portion) 123 toward the partition wall portion 121.

In other words, as shown in FIG. 4B, the separator joint holding protrusion (protrusion) 124 has a pair of first walls 124A, 124A facing each other with the recess 126U therebetween, and a second wall 124B connecting the pair of first walls 124A, 124A. The pair of first walls 124A, 124A extend in the radial direction of the protective tube main body 110. The second wall 124B connects the radially inner ends of the pair of first walls 124A, 124A.

As a result, it is possible to reduce the force required to bend the separator member 120 in the width direction toward the inside of the protective tube main body 110 in the separator joint holding protrusion (protrusion) 124. That is, at this time, the separator joint holding protrusion (protrusion) 124 bends starting from the second wall portion 125B, and the pair of first wall portions 124A, 124A separate from each other, widening the recess 126U.
As a result, the separator member 120 can be bent with a small force.

The thickness of the separator joint holding protrusion (protrusion) 124 can be set arbitrarily. For example, the separator joint holding protrusion (protrusion) 124 may be solid without forming the recess 126U, or the thickness of the separator joint holding protrusion (protrusion) 124 may be set to a different thickness than the support wall portion 122.

The separator members 120 are connected to the separator joints 130 by fastening members (not shown) such as bolts or rivets, and adjacent separator members 120 in the pipe axis O direction are connected to each other.

When connecting the separator member 120 using the separator joint 130, as shown in Figures 2 and 3, the separator joint 130 is placed on the second pipe 12S side of the partition wall portion 121. Then, the partition wall portion 121 and the separator joint 130 are connected by a fastening member (not shown).

The separator joint 130 is, for example, a plate member that is approximately rectangular in plan view and has an approximately V-shape that complementarily fits the lower (second pipeline side) surface of the partition wall portion 121 when viewed along the pipe axis O.
Further, the flat surface portion 121A and the inclined surface portion 121B of the partition wall portion 121 are each formed with an insertion hole (not shown) corresponding to the insertion hole (not shown) of the separator joint 130 .

According to one embodiment of the cable protection tube 100 and separator member 120, a retained recess (retained engagement portion) 123 is formed in the support wall portion 122, so that the retained recess (retained engagement portion) 123 can be engaged with the separator retaining protrusion (retaining engagement portion) 112 of the protection tube main body 110, thereby enabling the separator member 120 to be efficiently attached to the protection tube main body 110.

Furthermore, according to the cable protection tube 100 and separator member 120 of one embodiment, a separator joint holding convex portion (convex portion) 124 that protrudes toward the radially inward direction of the protection tube main body 110 is formed on the support wall portion 122 of the separator member 120, so that the separator joint 130 can be stably held between the partition wall portion 121 and the separator joint holding convex portion (convex portion) 124.
As a result, the separator members 120 can be easily and efficiently connected to each other by the separator joints 130 .

In addition, the separator joint holding protrusion (protrusion) 124 is formed on the support wall 122 and is formed into a generally U-shaped cross section, improving flexibility. When the separator member 120 is bent inward in the width direction toward the inside of the protective tube body 110 and inserted into the protective tube body 110, the support wall 122 and the held recess (held engagement portion) 123 are prevented from deforming in a direction different from the tube axis (for example, a direction twisted relative to the tube axis), allowing the separator member 120 to be easily and efficiently inserted into the protective tube body 110.

Furthermore, according to the cable protection tube 100 and separator member 120 of one embodiment, a recess 126U that opens toward the radially outward side of the protection tube main body 110 is formed in the separator joint holding convex portion (convex portion) 124, so that the force required to bend the separator member 120 in the width direction toward the inside of the protection tube main body 110 can be reduced in the separator joint holding convex portion (convex portion) 124.
Furthermore, the insertion resistance (friction resistance) when inserting the separator member 120 into the protection tube main body 110 can be reduced.
Furthermore, when installing the cable protection tube 100, the twist of the tube ends of the connected protection tube main bodies 110 around the tube axis O can be easily adjusted.
As a result, the separate member 120 can be bent in the width direction with a small force and can be easily and efficiently inserted into the protective tube main body 110 .

In one embodiment of the cable protection tube 100, the protrusions (retaining engagement parts) 112 are formed on opposite sides of the tube axis O at 180°, ensuring the stability of the production of the protection tube body 111 and preventing vertical restrictions when installing the cable protection tube 100.

The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the invention.

For example, in the above embodiment, a case was described in which a recess 126U that opens toward the outside in the radial direction of the protective tube main body 110 is formed in the separator joint holding protrusion (protrusion) 124, and a roughly U-shaped wall portion of the same thickness as the support wall portion 122 is formed from the held recess (held engagement portion) 123 toward the partition wall portion 121. However, it is possible to arbitrarily set whether or not to form the recess 126U in the separator joint holding protrusion (protrusion) 124, and the shape of the recess 126U. For example, a solid separator joint holding protrusion (protrusion) 124 may be applied without forming the recess 126U, or the thickness of the separator joint holding protrusion (protrusion) 124 may be set to a thickness different from that of the support wall portion 122.

In addition, in the above embodiment, the separator member 120 is described as being applied to a protective tube body 110 having an inner diameter of φ225 mm, but the inner diameter of the protective tube body is not limited to φ225 mm, and the inner diameter may be larger than φ225 mm or smaller than φ225 mm.

In the above embodiment, the circumferential positions of the pallet retaining protrusions 112L and the separator retaining protrusions 112R on the inner surface 111 are described as being formed 180° opposite each other across the tube axis O, but the circumferential positions of the pallet retaining protrusions 112L and the separator retaining protrusions 112R on the inner surface 111 can be set arbitrarily.

In the above embodiment, the present invention has been described as being applied to a cable protection tube 100 that protects communication cables (cables) 150, 160 such as telephone lines underground at 10A. However, instead of communication cables 150, 160, the present invention may also be applied to a cable protection tube for guiding, for example, a power cable underground.

In the above embodiment, the holding engagement portion of the protective tube main body 110 and the held engagement portion of the separator member 120 are described as being configured by the separator holding protrusion 112 and the held recess 123, but the form of the holding engagement portion and the held engagement portion is not limited, and for example, instead of the separator holding protrusion 112 and the engagement recess 123, they may be configured by a holding engagement portion configured by a recessed portion and a held engagement portion configured by a convex portion.

In addition, the components in the above embodiments may be replaced with known components as appropriate without departing from the spirit of the present invention, and the above embodiments may be combined as appropriate.

100 Cable protection tube 10S Internal space 11S Upper pipe (first pipe)
12S Lower pipe line (second pipe line)
110 Protective tube body 111 Inner peripheral surface 112, 112L, 112R Separator holding protrusions (holding engagement portions)
120 Separator member 121 Partition wall portion 121A Plane portion 121B Inclined portions 122, 122A, 122B Support wall portions 123, 123A, 123B Recessed portion to be held (engaged portion to be held)
124, 124L, 124R Separator joint holding convex portion (convex portion)
125, 125L, 125R Separator joint holding recess 126U Recess 130 Separator joint 140 Sheath 150, 160 Communication cable (cable)

Claims (4)

A separator member is disposed inside a protective tube body along a tube axis and divides the inside of the protective tube body into a first pipe line and a second pipe line,
a partition wall portion that separates the first pipeline and the second pipeline when viewed along the tube axis, and a pair of support wall portions that are connected to both ends of the partition wall portion and extend toward the second pipeline along an inner circumferential surface of the protection tube main body;
Equipped with
The pair of support walls include
a retained engagement portion that engages with a retaining engagement portion formed on the protection pipe main body to be attached to the protection pipe main body, and a convex portion that is disposed closer to the partition wall portion than the retained engagement portion and protrudes toward the inside in the radial direction of the protection pipe main body,
A separator member, comprising: a recess formed between a lower surface of the partition wall and the protrusion. 2. The separator member of claim 1,
A separator member, wherein the protrusion has a recess formed therein, the recess opening toward an outer side in a radial direction of the protective tube body. A protective tube main body having a holding engagement portion formed on an inner circumferential surface thereof;
a separator member disposed inside the protection tube body along a tube axis and dividing the inside of the protection tube body into a first pipe line and a second pipe line;
A cable protection tube comprising:
A cable protection tube, wherein the separator member is the separator member according to claim 1 or 2. The cable protection tube according to claim 3,
a separator joint that connects the separator members adjacent to each other in a tube axis direction of the protection tube main body,
The cable protection pipe, characterized in that the separator joint is held in the recess formed between the lower surface of the partition wall portion and the protrusion .

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