JP7389596B2 - Separator fittings and separator systems - Google Patents

Description

The present invention relates to separator joints and separator systems.

Conventionally, communication cables such as telephone lines have been buried under the surface of roads in order to protect the landscape by eliminating utility poles and to reduce damage in the event of disasters such as earthquakes. When burying a communication cable, for example, the protective tube bodies disclosed in Patent Documents 1 and 2 are used.
In the protection tube bodies disclosed in Patent Documents 1 and 2, the inside of the protection tube body is partitioned with a separator member in order to accommodate communication cables for each type of communication cable, such as a lead-in cable and a trunk cable. ing.

Inside the protective tube main body, a plurality of separator members are arranged side by side in the tube axis direction of the protective tube. Separator members adjacent in the tube axis direction are connected to each other via a separator joint and a shaft member such as a rivet. The separator member and the separator joint are connected by shaft-shaped members respectively disposed in the main body through hole formed in the separator member and in the joint through hole formed in the separator joint.

Japanese Patent Application Publication No. 2008-017666 JP2008-044037A

However, for example, if the overlapping positions of the separator member and the separator joint are misaligned, it becomes difficult to insert the shaft-shaped member inserted into the main body through-hole of the separator member into the joint through-hole of the separator joint.

The present invention has been made in view of such problems, and an object of the present invention is to provide a separator joint in which a shaft member can be easily inserted from the separator member side, and a separator system equipped with this separator joint. .

In order to solve the above problems, the present invention proposes the following means.
The separator joint of the present invention is a separator joint that is connected to a separator member that partitions the inside of a protective tube main body via a shaft member, and includes a first joint wall that contacts the separator member, and includes a first joint wall that contacts the separator member. A joint through-hole is formed in which the shaft-like member is disposed, the direction along the outer surface of the first joint wall where the joint through-hole opens is defined as the creeping direction, and the direction perpendicular to the outer surface is defined as the thickness direction. The length of the joint through-hole in the longitudinal direction increases from the first side toward the second side in the thickness direction.

According to this invention, the length of the joint through-hole in the creeping direction becomes longer from the first side to the second side in the thickness direction, and the inner surface of the joint through-hole on the first side in the creeping direction and the joint The inner surface of the second side of the through hole in the longitudinal direction is not parallel to each other. In other words, the direction along the inner surface on the first side of the joint through-hole in the creeping direction is different from the direction along the inner surface on the second side of the joint through-hole in the creeping direction. When using this separator joint, the outer surface of the first side of the first joint wall in the thickness direction is brought into contact with the separator member. At this time, when the shaft-like member is inserted from the separator member side, after the shaft-like member passes through the end (opening) on the first side in the thickness direction of the joint through-hole, the shaft-like member is inserted into the joint through-hole. It can be turned around and inserted toward the second side. Specifically, this shaft-shaped member can be inserted along the inner surface of the first side of the joint through-hole in the first orthogonal direction, or can be inserted along the inner surface of the second side of the joint through-hole in the first orthogonal direction. It is also possible to insert along (ie in a different orientation than along the inner surface of the first side in the first orthogonal direction). Therefore, the shaft-like member can be easily inserted into the separator joint from the separator member side.

Further, in the separator joint, one of the inner surfaces of the joint through-hole in the creeping direction extends along the thickness direction in a cross-sectional view taken along the creeping direction and the thickness direction of the joint through-hole, respectively. You can leave it there.
Here, the expression that the inner surface is along the thickness direction means that the inner surface and the thickness direction are parallel, or that the angle between the inner surface and the thickness direction is 10 degrees or less.
According to this invention, the shaft-like member can be easily inserted into the joint through-hole along the thickness direction.

Further, in the separator joint, the joint through hole includes a first opening formed on an outer surface of the first side in the thickness direction of the first joint wall, and the first opening is formed in the outer surface of the first joint wall in the thickness direction. It may have a circular shape when viewed from above.
The first opening having a circular shape as used herein means that the ratio of the diameter of the longest diameter part of the first opening to the diameter of the shortest diameter part of the first opening is 1.0 or more and 1.2. It means that:
According to this invention, since the first opening has a circular shape, the diameter of the first opening depending on the direction around the axis of the joint through hole is approximately constant regardless of the direction. Therefore, it is possible to suppress the wobbling of the shaft-like member within the first opening from changing depending on this orientation.

Further, in the separator joint, when the direction perpendicular to the creeping direction and the thickness direction are orthogonal directions, the joint through hole is formed on the second side of the first joint wall in the thickness direction. The device may include a second opening formed on the outer surface, and the length of the second opening in the orthogonal direction and the length of the first opening in the orthogonal direction may be equal to each other.
According to this invention, the length of the second opening in the orthogonal direction is suppressed to about the length of the first opening in the orthogonal direction. For this reason, for example, when the shaft-like member includes a shaft portion disposed in the joint through-hole and a head portion having a larger diameter than the shaft portion, the shaft portion is placed in the thickness direction with respect to the head portion. When the shaft portion is inserted into the joint through-hole from the second opening while being disposed on the first side, the head portion can be easily locked in the second opening.

Further, in the separator joint, when the directions perpendicular to the creeping direction and the thickness direction are orthogonal directions, when the first joint wall is viewed in the orthogonal direction, The first side in the thickness direction may include a second joint wall forming an angle less than or equal to an obtuse angle.
The second joint wall referred to here also includes forms that are not directly connected to the first joint wall. That is, for example, it also includes a configuration in which a joint connection wall that connects the first joint wall and the second joint wall is disposed between the first joint wall and the second joint wall. When the second joint wall is connected to the first joint wall via a joint connection wall, the angle that the second joint wall makes with respect to the first joint wall is the angle between the second joint wall and the first joint wall. An angle formed by the intersection of extended lines.

For example, a case will be described in which the separator member includes a first body wall and a second body wall that support a communication cable. When the first body wall and the second body wall are viewed in an orthogonal direction, the first body wall and the second body wall form a first angle that is less than or equal to an obtuse angle. For example, the separator member is used by arranging the side forming the first angle upward.
In this state, the outer surface of the first side of the first joint wall in the thickness direction is brought into contact with the lower surface of the first main body wall, and the second joint wall is brought into contact with the lower surface of the second main body wall. Then, the joint through-hole is arranged so that the length in the creeping direction becomes longer as it goes toward the side opposite to the side that forms the angle (downward or diagonally downward). Therefore, the shaft-like member can be easily inserted downward or diagonally downward from the separator member side.

Further, in the separator joint, when the end of the first joint wall that is connected to the second joint wall is a connecting end, the inner surface of the joint through hole on the side of the connecting end in the creeping direction is In a cross-sectional view of the joint through-hole along the creeping direction and the thickness direction, the coupling end portion may be gradually inclined toward the second side in the thickness direction.
According to this invention, it is possible to form a space within the joint through-hole that extends closer in the vertical direction than in the thickness direction. Therefore, the shaft-like member can be more easily inserted downward from the separator member side.

Further, the separator system of the present invention includes the separator joint according to any one of the above, the separator member, and the shaft-like member, and the creeping direction may be the width direction of the separator member. .
According to this invention, a separator system can be constructed using a separator joint in which the shaft member can be easily inserted into the separator joint from the separator member side. In this case, the creeping direction is the width direction of the separator member. For this reason, for example, when inserting a shaft-like member into a joint through-hole, even if the shaft-like member tends to change direction in the width direction, the joint through-hole can make it easier to insert the shaft-like member. can.

According to the separator joint of the present invention, it is possible to easily insert the shaft member from the separator member side.

FIG. 1 is a perspective view of a cable protection conduit in which a separator joint according to an embodiment of the present invention is used. FIG. 2 is a partially cutaway perspective view of a cable protection tube included in the same cable protection conduit. It is a front view of the separator member of the same cable protection tube. It is a longitudinal cross-sectional view of the main part of the same separator member and separator joint. FIG. 3 is a cross-sectional view illustrating a processing jig for forming a main body through hole and the like in the separator member. It is a top view of the same separator joint. It is a front view of the same separator joint. FIG. 3 is a view of the main parts of the separator joint as viewed from below in the thickness direction to the first side. 3 is a sectional view taken along cutting line A1-A1 in FIG. 2. FIG. FIG. 9 is a view of FIG. 9 viewed from below in the thickness direction to the first side. It is a sectional view of the main part of the same separator member and separator joint when the direction in which a rivet is inserted has changed. FIG. 12 is a view of FIG. 11 viewed from below in the thickness direction to the first side. FIG. 2 is a sectional view of main parts of a conventional separator member and separator joint. FIG. 14 is a view of FIG. 13 viewed from below in the thickness direction to the first side. FIG. 2 is a plan view showing a state in which a separator joint according to an embodiment of the present invention is connected to a separator member for a curved pipe.

Hereinafter, one embodiment of a separator joint according to the present invention will be described with reference to FIGS. 1 to 15.
The separator joint of this embodiment is used for the cable protection conduit 1 shown in FIG. The cable protection conduit 1 includes a cable protection pipe 2 of a so-called one-pipe separate type. A communication cable 100 is housed within the cable protection tube 2 . The cable protection pipe 2 is buried underground G, and is for installing the communication cable 100 in the underground G.

As shown in FIGS. 1 and 2, the cable protection tube 2 includes a protection tube main body 10, a separator member 15, and a separator joint 35. In addition, in FIG. 2, some of the separator members 15 are shown by two-dot chain lines.
As shown in FIG. 2, the protection tube main body 10 is formed in a circular tube shape. A pair of convex portions 11 are formed on the inner circumferential surface of the protective tube body 10 and project from the inner circumferential surface toward the inside of the protective tube body 10 in the radial direction (hereinafter simply referred to as the radial direction). The pair of convex portions 11 are arranged so as to sandwich the tube axis O of the protective tube main body 10 . That is, one of the pair of protrusions 11 is located at a position shifted by 180 degrees around the tube axis O with respect to the other protrusion 11.
Note that the arrangement of the pair of protrusions 11 is not limited to this, and the pair of protrusions 11 can be arranged at any position in the circumferential direction of the protection tube main body 10.
The protection tube main body 10 and the pair of protrusions 11 are integrally formed by extrusion molding a high-strength synthetic resin material such as hard vinyl chloride. The protection tube main body 10 is arranged so that the tube axis O is along a horizontal plane. Note that the direction in which the protection tube main body 10 is arranged is not limited to this.

As shown in FIG. 2, the separator member 15 partitions the internal space S of the protective tube main body 10 in the vertical direction. Note that the direction in which the separator member 15 partitions the inside of the protective tube main body 10 is not limited to the vertical direction, but may be the horizontal direction when viewed in the tube axis O direction.
The separator member 15 shown in FIGS. 2 and 3 is a so-called separator member for straight pipes. The separator member 15 includes a plate-shaped portion 16 and a pair of leaf spring portions 25. Note that FIG. 3 is a front view of the separator member 15 when the separator member 15 is viewed along the tube axis O.
The plate-shaped portion 16 includes a main body connecting wall 17, a first main body wall 18, and a second main body wall 19. The main body connecting wall 17, the first main body wall 18, and the second main body wall 19 are each formed into a flat plate shape.
The main body connecting wall 17 is arranged so that the thickness direction of the main body connecting wall 17 runs along the vertical direction.

The first main body wall 18 is a first end portion of the main body connecting wall 17 in the width direction (a direction perpendicular to the thickness direction of the main body connecting wall 17 when viewed in the tube axis O direction; hereinafter simply referred to as the width direction). From there, as the distance from the main body connecting wall 17 increases, it gradually slopes upward. The second main body wall 19 is gradually inclined upward as it moves away from the main body connecting wall 17 from the second end in the width direction of the main body connecting wall 17 .
As shown in FIG. 3, when viewed along the tube axis O, the first angle θ1 formed by the first body wall 18 and the second body wall 19 is less than or equal to an obtuse angle (greater than 0 degrees and less than 180 degrees). .
Here, the first angle θ1 is defined as the extension line L1 of the outer surface of the first body wall 18 and the outer surface of the second body wall 19 when the first body wall 18 and the second body wall 19 are not in contact with each other. It means the angle formed by the extension line L2. When the first body wall 18 and the second body wall 19 are in contact with each other, it actually refers to the angle formed by the outer surface of the first body wall 18 and the outer surface of the second body wall 19.
For example, the separator member 15 is used so that the side forming the first angle θ1 faces upward.

As shown in FIGS. 3 and 4, a main body through hole 18a is formed in the first main body wall 18. As shown in FIGS. Note that FIG. 4 is a cross-sectional view orthogonal to the tube axis O.
The main body through hole 18a extends along the vertical direction. The main body through hole 18a has a circular shape when the first main body wall 18 is viewed in the vertical direction.
A body through hole 19a is formed in the second body wall 19, similar to the body through hole 18a.

As shown in FIG. 3, the leaf spring section 25 includes a spring body 26 and a first recess 27.
The spring body 26 extends downward from each of the radially outer ends of the first body wall 18 and the second body wall 19 . The spring body 26 is curved along the inner circumferential surface of the protection tube body 10 so as to be convex toward the outside in the radial direction.
The first recess 27 is recessed toward the inside in the radial direction. The first recess 27 is provided at the end of the spring body 26 that is connected to the body walls 18 and 19. The first recess 27 fits into the protrusion 11 of the protection tube main body 10 (see FIG. 2).
Second recesses 28 are formed between the main body walls 18 and 19 and the first recesses 27, respectively. The second recess 28 is recessed toward the outside in the radial direction.
The separator member 15 is integrally formed by extrusion molding a high-strength synthetic resin material such as hard vinyl chloride.
Note that the direction in which the separator member 15 is arranged is not limited to this.

As shown in FIG. 2, the separator member 15 partitions the internal space S into an upper conduit S1 above the plate-like part 16 and a lower conduit S2 below the plate-like part 16. .
The upper outer surface of the plate-shaped portion 16 has a diameter such that, for example, a circle with a diameter of 100 mm can be inscribed between it and the inner circumferential surface of the protection tube body 10 in order to accommodate the lead-in cable in the upper conduit S1. The accommodation space is set so that it can be secured.

Note that the main body through holes 18a and 19a are not formed in the separator member 15 immediately after extrusion molding. The main body through holes 18a and 19a are formed by post-processing using a processing jig disclosed in Patent Document 2, for example. The outline of the subsequent processing will be explained below.

For this post-processing, a processing jig 110 shown in FIG. 5 is used. The processing jig 110 includes a lower member 111, an upper member 115, and a slider plate 120.
The top plate portion 112 of the lower member 111 is supported by an upright plate portion (not shown) or the like so as to be inclined with respect to a horizontal plane. A guide hole 112a for drilling is formed in the top plate portion 112.
The inclined portion 116 of the upper member 115 and the top plate portion 112 sandwich the first main body wall 18 of the separator member 15 in the vertical direction. A guide hole 116a for drilling is formed in the inclined portion 116.
The slider plate 120 is provided on the upper member 115 along a horizontal plane. A guide hole 120a for drilling is formed in the slider plate 120. The positions of these guide holes 112a, 116a, and 120a are adjusted so that they are coaxially arranged along the vertical direction.
A drill D1 of an electric drill D is passed through the guide holes 112a, 116a, and 120a. Then, a main body through hole 18a extending in the vertical direction is formed in the first main body wall 18.
The main body through hole 19a is formed similarly to the main body through hole 18a.

As shown in FIGS. 6 and 7, the separator joint 35 includes a joint connection wall 37, a first joint wall 38, and a second joint wall 39. In addition, in FIG. 6, the separator member 15 is shown by a two-dot chain line.
The joint connecting wall 37, the first joint wall 38, and the second joint wall 39 are each formed in a flat plate shape, and each has a rectangular shape in a plan view shown in FIG. The first joint wall 38, the joint connecting wall 37, and the second joint wall 39 are arranged in this order in the width direction.
Connection through holes 42 are formed at each end of the joint connection wall 37 in the longitudinal direction (direction of the tube axis O). The connection through hole 42 extends in the thickness direction of the joint connection wall 37 and has a circular shape when viewed in the thickness direction of the joint connection wall 37.

The first joint wall 38 is gradually inclined upward as the first joint wall 38 moves away from the joint joint wall 37 from the first end in the width direction of the joint joint wall 37 . The length of the first joint wall 38 in the direction of the tube axis O and the length of the joint connection wall 37 in the direction of the tube axis O are equal to each other.
Here, the end of the first joint wall 38 that is connected to the second joint wall 39 via the joint connection wall 37 is referred to as a connection end 38a. Note that when the separator joint 35 does not include the joint connection wall 37, the connection end 38a is the end of the first joint wall 38 that is directly connected to the second joint wall 39.

The second joint wall 39 is gradually inclined upward from the second end of the joint joint wall 37 in the width direction as it becomes further away from the joint joint wall 37 . The length of the second joint wall 39 in the direction of the tube axis O and the length of the joint connection wall 37 in the direction of the tube axis O are equal to each other.
The positions of the centers of the joint connecting wall 37, the first joint wall 38, and the second joint wall 39 in the direction of the tube axis O coincide with each other.
As shown in FIG. 7, when viewed along the tube axis O, the second angle (angle) θ2 formed by the first joint wall 38 and the second joint wall 39 is less than or equal to an obtuse angle.
Here, the second angle θ2 is defined as the extension line L6 of the outer surface of the first joint wall 38 and the outer surface of the second joint wall 39 when the first joint wall 38 and the second joint wall 39 are not in contact with each other. It means the angle formed by the extension line L7. When the first joint wall 38 and the second joint wall 39 are in contact with each other, it actually refers to the angle formed by the outer surface of the first joint wall 38 and the outer surface of the second joint wall 39. The second angle θ2 is approximately the same as the first angle θ1.

The joint through holes 43 and 44 formed in the first joint wall 38 and the second joint wall 39 will be described in detail later.

As shown in FIG. 2, the first ends of the joint connecting wall 37, the first joint wall 38, and the second joint wall 39 in the tube axis O direction are connected to the main body connecting wall 17, the first main body wall 18, and the second main body wall. 19 is in contact with the lower surfaces of the main body connecting wall 17, the first main body wall 18, and the second main body wall 19 from below.
The joint connecting wall 37, the first joint wall 38, and the second joint wall 39 are arranged parallel to the main body connecting wall 17, the first main body wall 18, and the second main body wall 19, respectively.
The first joint wall 38 and the second joint wall 39 are supported from below by the first recess 27 of the separator member 15, respectively.
The separator joint 35 is used so that the side forming the second angle θ2 faces upward.

Here, as shown in FIG. 4, in a cross section perpendicular to the tube axis O, the direction along the outer surface (upper surface) where the joint through hole 43 opens in the first joint wall 38 is defined as the creeping direction Y. The direction perpendicular to this outer surface is defined as the thickness direction X. In the thickness direction X, the side facing upward is defined as a first side X1, and the side facing downward is defined as a second side X2. A direction perpendicular to the creeping direction Y and the thickness direction X is defined as an orthogonal direction Z. The orthogonal direction Z is the direction of the tube axis O. The creeping direction Y is the width direction of the separator member 15 (the direction in which the first body wall 18 and the second body wall 19 are lined up).

As shown in FIGS. 4 and 6, a plurality of joint through holes 43 are formed in the first joint wall 38 along the tube axis O direction.
FIG. 8 is a diagram of the joint through hole 43 viewed from below in the thickness direction X toward the first side X1. FIG. 4 is a cross-sectional view taken along the creeping direction Y and the thickness direction X, respectively.
As shown in FIGS. 4 and 8, the length of the joint through-hole 43 in the creeping direction Y increases as it goes from the first side X1 to the second side X2 in the thickness direction X.
An outer inner surface (inner surface) 43a of the joint through hole 43 on the side opposite to the second joint wall 39 in the creeping direction Y extends along the thickness direction X. The inner inner surface (inner surface) 43b of the joint through-hole 43 on the side of the connecting end 38a in the creeping direction Y is inclined so as to gradually approach the connecting end 38a as it goes toward the second side X2 in the thickness direction X. The cross-sectional shape of the joint through hole 43 is trapezoidal.
The outer surface of the first side X1 in the thickness direction X of the first joint wall 38 is in contact with the lower surface of the first main body wall 18.

In this way, the length of the joint through hole 43 in the creeping direction Y becomes longer from the first side X1 to the second side X2 in the thickness direction X, and the inner inner surface 43b and the outer inner surface 43a of the joint through hole 43 are not parallel to each other. In other words, the direction along the inner inner surface 43b of the joint through hole 43 is different from the direction along the outer inner surface 43a.
The joint through-hole 43 is arranged so that the length in the creeping direction Y becomes longer as it goes diagonally downward. Seen in the orthogonal direction Z, a second angle θ2 is formed on the first side X1 in the thickness direction X with respect to the first joint wall 38 (see FIG. 4).

Here, as shown in FIGS. 4 and 8, the opening of the joint through hole 43 formed on the outer surface of the first side X1 in the thickness direction X of the first joint wall 38 is referred to as a first opening 43c. The opening of the joint through hole 43 formed on the outer surface of the second side X2 in the thickness direction X of the first joint wall 38 is referred to as a second opening 43d. As shown in FIG. 8, the first opening 43c has a circular shape when viewed in the thickness direction X. As shown in FIG. The length of the first opening 43c in the orthogonal direction Z and the length of the second opening 43d in the orthogonal direction Z are equal to each other.
For example, a case will be described in which the second angle θ2 is 140 degrees and the diameter of the rivet 50A, which will be described later, is 4 mm. In this case, as shown in FIG. 4, the length M1 in the width direction of the first opening 43c when viewed along the vertical direction is 4.3 mm.

As shown in FIG. 6, a plurality of joint through holes 44 are formed in the second main body wall 19 along the tube axis O direction. The joint through hole 44 is formed symmetrically with the joint through hole 43 with respect to a vertical plane including the tube axis O.
The separator joint 35 is integrally formed by injection molding of a high-strength synthetic resin material such as hard vinyl chloride. Furthermore, the separator joint 35 can also be manufactured by pressing a vinyl chloride sheet.

The separator member 15 and the separator joint 35 are connected via a rivet (shaft-shaped member) 50 shown in FIGS. 9 and 10. Note that the rivet 50, separator member 15, and separator joint 35 constitute a separator system 55 (see FIG. 2).
The rivet 50 includes a shaft portion 51, and a first head portion 52 and a second head portion 53 having a diameter larger than that of the shaft portion 51.
The shaft portion 51 is formed in a columnar shape and is disposed inside the main body through hole 18a of the separator member 15 and inside the joint through hole 43 of the separator joint 35, respectively.
The shaft portion 51 is arranged along the inner inner surface 43b of the joint through hole 43. The first head 52 is connected to the first end of the shaft portion 51 and is engaged with the upper surface of the first body wall 18 from above. The second head 53 is connected to the second end of the shaft portion 51 and is engaged with the lower surface of the first joint wall 38 from below.

Although not shown, the shaft portion 51 of the rivet 50 is disposed inside the main body through hole 19a of the separator member 15 and inside the joint through hole 44 of the separator joint 35, respectively. The first head 52 is engaged with the upper surface of the second main body wall 19 from above. The second head 53 is engaged with the lower surface of the second joint wall 39 from below.
In this way, the separator member 15 and the separator joint 35 are connected via the rivet 50.

As shown in FIG. 1, a lead-in cable 100a, which is a communication cable 100, is housed in the upper conduit S1 of the cable protection tube 2. As shown in FIG.
A trunk cable 100b, which is a communication cable 100 disposed within the sheath pipe 103, is accommodated in the lower pipe S2.

The cable protection tube 2 configured as described above is constructed as follows.
The protection tube main body 10 is buried underground.
The distal end portion (the end portion in the tube axis O direction) of the separator member 15 is arranged within the protective tube main body 10 . At this time, the pair of first recesses 27 of the separator member 15 are fitted into the pair of protrusions 11 .
A separator joint 35 is connected to the base end of the separator member 15 via a rivet 50. At this time, the rivet 50A (see FIG. 9), which is the rivet 50 before the second head 53 is formed, is inserted into the main body through hole 18a from the separator member 15 side. After the rivet 50A passes through the end (first opening 43c) of the first side X1 in the thickness direction It can be inserted towards the Specifically, as shown in FIGS. 9 and 10, the rivet 50A can also be inserted along the inner inner surface 43b of the joint through hole 43. Furthermore, depending on how the rivet 50 is connected, the rivet 50A can be inserted along the outer inner surface 43a of the joint through hole 43, as shown in FIGS. 11 and 12. Therefore, the rivet 50A can be easily inserted into the separator joint 35 from the separator member 15 side.

Note that since the first joint wall 38 is inclined with respect to the horizontal plane, when inserting the rivet 50A, the direction of the rivet 50A tends to change in the width direction of the separator member 15.
In a cross section perpendicular to the tube axis O, the orientation of the rivet 50 is changed within the joint through hole 43. Therefore, when vibrations such as earthquakes are applied to the protection tube main body 10, this vibration can be absorbed by changing the orientation of the rivet 50 within the joint through-hole 43.

After the above steps, a second head 53 is formed on the rivet 50A to obtain the rivet 50. The separator member 15 and the separator joint 35 are connected via the rivet 50 inserted into the main body through hole 18a and the joint through hole 43.
Similarly, the separator member 15 and the separator joint 35 are connected via the rivet 50 inserted into the main body through hole 19a and the joint through hole 44. Through the above steps, the separator member 15 and the separator joint 35 are connected.
Another separator member 15 is arranged on the proximal end side of the separator joint 35. Then, this other separator member 15 and separator joint 35 are connected via rivets 50. The separator member 15 connected via the separator joint 35 is inserted into the protection tube main body 10.

In the separator joint 35 of this embodiment, the outer inner surface 43a of the joint through hole 43 extends along the thickness direction X. Therefore, the rivet 50 can be easily inserted into the joint through-hole 43 along the thickness direction X.
The first opening 43c of the joint through-hole 43 has a circular shape when viewed in the thickness direction X. As a result, the diameter of the first opening 43c depending on the direction around the axis of the joint through hole 43 becomes substantially constant regardless of this direction. Therefore, it is possible to suppress the rattling of the rivet 50 in the first opening 43c from changing depending on this orientation.

The length of the first opening 43c in the orthogonal direction Z and the length of the second opening 43d in the orthogonal direction Z are equal to each other. The length of the second opening 43d in the first joint wall 38 in the orthogonal direction Z is suppressed to about the length of the first opening 43c in the orthogonal direction Z. Therefore, the second head 53 of the rivet 50 can be easily locked into the second opening 43d.
The separator joint 35 includes a first joint wall 38 and a second joint wall 39. The upper surface of the first joint wall 38 (the outer surface of the first side X1 in the thickness direction Touch the top surfaces. Then, the joint through-hole 43 is arranged so that the length in the creeping direction Y becomes longer as it goes diagonally downward. Therefore, the rivet 50 can be easily inserted diagonally downward from the separator member 15 side.

The inner inner surface 43b of the joint through-hole 43 is inclined toward the second side X2 in the thickness direction X so as to gradually approach the connecting end 38a. Thereby, a space extending closer to the vertical direction than the thickness direction X can be formed in the joint through hole 43. Therefore, the rivet 50 can be more easily inserted downward from the separator member 15 side.
Moreover, according to the separator system 55 of this embodiment, the separator system 55 can be configured using the separator joint 35 in which the rivet 50 can be easily inserted from the separator member 15 side. At this time, the creeping direction Y is the width direction of the separator member 15. Therefore, for example, when inserting the rivet 50A into the joint through-hole 43, even if the rivet 50A tends to change direction in the width direction, the joint through-hole 43 can make it easier to insert the rivet 50A. .

13 and 14 show an example in which a conventional separator joint 125 is connected to a separator member 15 via a rivet 50. A joint through hole 126 is formed in the separator joint 125 in place of the joint through hole 43 of the separator joint 35 . The joint through hole 126 extends along the vertical direction. The joint through hole 126 has a circular shape when viewed in the vertical direction.
For example, a case will be described in which the second angle θ2 is 140 degrees and the diameter of the rivet 50A is 4 mm. As shown in FIG. 13, when inserting the rivet 50A along the thickness direction X, the diameter M2 of the joint through hole 126 when viewed along the vertical direction needs to be 5.0 mm. As described above, in the conventional separator joint 125, the widthwise length of the opening formed in the upper surface of the first joint wall 38 is longer than that of the joint through hole 43 of this embodiment.
In addition, when a joint through-hole is formed along the thickness direction X in a conventional separator joint, the diameter of the joint through-hole when viewed along the thickness direction X is 4.3 mm. However, the orientation of the rivet 50A cannot be changed within this joint through-hole.

As shown in FIG. 15, the connection through hole 42 of the separator joint 35 is used to connect the separator joint 35 to a known separator member 60 for a curved pipe via a rivet 50.

Although one embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and modifications, combinations, and deletions of the configuration within the scope of the gist of the present invention. etc. are also included.
For example, in the embodiment, the outer inner surface 43a does not need to extend along the thickness direction X in the cross-sectional view. The first opening 43c of the joint through-hole 43 may not have a circular shape when viewed in the thickness direction X, but may have an elliptical shape, an elliptical shape, or the like. The length of the first opening 43c in the orthogonal direction Z and the length of the second opening 43d in the orthogonal direction Z may not be equal to each other.

The separator joint 35 may not include the joint connection wall 37 but may include a first joint wall 38 and a second joint wall 39. Furthermore, the separator joint may not include the second joint wall 39.
The separator member 15 does not need to include the main body connecting wall 17 and the pair of leaf spring parts 25.
Although the shaft-like member is the rivet 50, the shaft-like member is not limited to the rivet 50, and may be a bolt, a nut, or the like.

10 Protection tube body 15 Separator member 35 Separator joint 38 First joint wall 38a Connection end 43 Joint through hole 43a Outer inner surface (inner surface)
43b Inner inner surface (inner surface)
43c First opening 43d Second opening 50, 50A Rivet (shaft-shaped member)
55 Separator system X Thickness direction X1 First side X2 Second side Y Creeping direction Z Orthogonal direction θ2 Second angle (angle)

Claims (7)

A separator joint that is connected to a separator member that partitions the inside of a protection tube body via a shaft-like member,
a first joint wall that contacts the separator member;
A joint through hole in which the shaft-like member is disposed is formed in the first joint wall,
When the direction along the outer surface of the first joint wall where the joint through hole opens is defined as the creeping direction, and the direction perpendicular to the outer surface is defined as the thickness direction,
In the separator joint, the length of the joint through-hole in the creeping direction increases from the first side to the second side in the thickness direction. The inner surface of the joint through-hole in the creeping direction extends along the thickness direction in a cross-sectional view taken along the creeping direction and the thickness direction of the joint through-hole, respectively. separator fitting. The joint through hole includes a first opening formed on an outer surface of the first side in the thickness direction of the first joint wall,
The separator joint according to claim 1 or 2, wherein the first opening has a circular shape when viewed in the thickness direction. When the directions perpendicular to the creeping direction and the thickness direction are respectively orthogonal directions,
The joint through hole includes a second opening formed on the outer surface of the second side in the thickness direction of the first joint wall,
The separator joint according to claim 3, wherein a length of the second opening in the orthogonal direction and a length of the first opening in the orthogonal direction are equal to each other. When the directions perpendicular to the creeping direction and the thickness direction are respectively orthogonal directions,
Claims 1 to 4, further comprising a second joint wall forming an angle equal to or less than an obtuse angle to the first side in the thickness direction with respect to the first joint wall when the first joint wall is viewed in the orthogonal direction. The separator joint according to any one of the above. When the end of the first joint wall connected to the second joint wall is a connecting end ,
In a cross-sectional view along the creeping direction and the thickness direction of the joint through-hole, the inner surface of the joint through-hole on the side of the connection end in the creeping direction is as follows toward the second side in the thickness direction. 6. The separator joint according to claim 5, wherein the separator joint is inclined gradually toward the connecting end . A separator joint according to any one of claims 1 to 6,
the separator member;
The shaft-like member;
Equipped with
In the separator system, the creeping direction is the width direction of the separator member.

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