JP5833080B2 - Cutting method of cable housing tube - Google Patents

Cutting method of cable housing tube Download PDF

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JP5833080B2
JP5833080B2 JP2013213947A JP2013213947A JP5833080B2 JP 5833080 B2 JP5833080 B2 JP 5833080B2 JP 2013213947 A JP2013213947 A JP 2013213947A JP 2013213947 A JP2013213947 A JP 2013213947A JP 5833080 B2 JP5833080 B2 JP 5833080B2
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cable
cutting
housing tube
tube
cable housing
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JP2015074077A (en
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亮 瀬田
亮 瀬田
田中　宏司
宏司 田中
克実 榊
克実 榊
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Nippon Telegraph and Telephone Corp
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Description

本発明は、内部に収容されたケーブルの損傷を防止しながら、ケーブルが収容された管路（ケーブル収容管）を輪切り切断する方法に関する。   The present invention relates to a method of cutting and cutting a pipe line (cable housing pipe) in which a cable is housed while preventing damage to the cable housed therein.

従来、地下に埋設されているケーブル収容管や橋梁に添架されているケーブル収容管の補修作業は、図４のフローチャートに示す手順で行われている。すなわち、先ず、専用の孔開け機を用いてケーブルの有無を確認するための小孔を管路に開け、内部にケーブルが確認された場合には、管路内に収容されているケーブルを損傷させないよう専用の切管工具を使用して管路を輪切り切断する。そして、輪切り切断した部分を起点に管路を長手方向に縦切りし、縦切りした管路を開いて切断部分を撤去した後、FRP製半割管等の取替え補修部材を取付ける。   Conventionally, repair work of a cable housing pipe buried in a basement or a cable housing pipe attached to a bridge has been performed according to the procedure shown in the flowchart of FIG. That is, first of all, a small hole for checking the presence or absence of a cable is opened in a pipeline using a dedicated drilling machine, and if the cable is confirmed inside, the cable accommodated in the pipeline is damaged. Use a special cutting tool to cut the pipe in a circle. Then, the pipe line is longitudinally cut in the longitudinal direction starting from the part that has been cut and cut, and after the cut pipe is opened and the cut part is removed, a replacement repair member such as an FRP half pipe is attached.

このような補修作業の過程において、管路を輪切り切断する際には、管路を切断する工具の刃の先端がケーブルに接触しないように、事前に刃先調整を行うことで安全性を確保しており、ケーブルに対する特別な防護処理は実施されていなかった。しかし、この刃先調整は現場作業者の判断で行われるため、管路断面に錆、腐食などによる減肉部分がある場合や、刃先調整の人為ミスにより、刃先がケーブルに達してケーブルを損傷させる虞があった。   In the course of such repair work, when cutting the pipe in a circular cut, safety is ensured by adjusting the cutting edge in advance so that the tip of the blade of the tool that cuts the pipe does not touch the cable. As a result, no special protective treatment for cables was implemented. However, since this blade edge adjustment is performed at the discretion of the field worker, the blade edge reaches the cable and damages the cable when there is a thinned part due to rust or corrosion on the pipe cross section or due to human error in blade edge adjustment. There was a fear.

そこで近年、半割可能な構造を有する円筒状のケーブル防護部材を用いてケーブルを保護する方法が提案されている（例えば、特許文献１参照）。このケーブル防護部材を使用する場合には、例えばマンホールのダクト口やビルへの引き込み口など、ケーブル収容管の開口部から防護部材を挿入する必要がある。またその使用方法は、先ず、ケーブル防護部材でケーブルを挟み込んで設置し、ケーブル防護部材に接続された挿入ロッドを用いて管路内に挿入していく。そして、挿入ロッドに付加された目盛によって位置を確認しながら、ケーブル防護部材を切管位置まで到達させた後、ケーブル収容管を切断する。   Therefore, in recent years, a method of protecting a cable using a cylindrical cable protection member having a structure that can be divided in half has been proposed (see, for example, Patent Document 1). When this cable protection member is used, it is necessary to insert the protection member from the opening of the cable housing pipe, such as a manhole duct port or a building entrance. In addition, the cable is first installed by inserting the cable with the cable protection member, and then inserted into the pipeline using the insertion rod connected to the cable protection member. Then, while confirming the position with the scale added to the insertion rod, the cable protection member is made to reach the cut tube position, and then the cable housing tube is cut.

特開２０１３−１３２１３号公報JP2013-13213A

しかしながら、上記のケーブル防護部材には収容ケーブル径などの適用制限があり、さらに、収容ケーブルが摩擦による悪影響を受ける虞がある。また、マンホールへの入溝を伴う場合には水汲みや清掃工程が必要となり、施工性が悪化するという問題があった。   However, the above-mentioned cable protection member has application restrictions such as the diameter of the accommodation cable, and the accommodation cable may be adversely affected by friction. In addition, when it is accompanied by a groove in the manhole, it is necessary to draw water and clean it, resulting in a problem that workability is deteriorated.

それゆえ本発明は、施工性に優れ、収容されたケーブルの損傷を防止することが可能なケーブル収容管の切断方法を提供することを目的とする。   Therefore, an object of the present invention is to provide a method for cutting a cable housing pipe that is excellent in workability and that can prevent damage to a housed cable.

本発明は、上記課題を解決するためになされたものであり、本発明に係るケーブル収容管の切断方法は、内部にケーブルが収容されているケーブル収容管の切断方法であって、
前記ケーブル収容管の外周面に孔部を形成するステップと、
可撓性を有する板状の防護部材を、前記孔部から前記ケーブル収容管の内部に挿入し、該ケーブル収容管の内周面に沿わせながら周方向に該ケーブル防護部材を挿入していき、前記ケーブルの外側を取り囲むように配置する防護部材配置ステップと、
前記ケーブル収容管における前記防護部材を配置した部分を、該ケーブル収容管の外周面側から周方向に切断する切断ステップと、を含み、
前記防護部材は、差込み工具を挿入可能な差込み孔を有し、
前記防護部材配置ステップは、前記孔部から前記ケーブル収容管の内部に挿入した防護部材の前記差込み孔に差込み工具を挿入し、前記防護部材の挿入方向に該差込み工具をハンマーで打ち込むことを特徴とする。
The present invention has been made in order to solve the above-mentioned problem, and the cutting method of the cable housing tube according to the present invention is a cutting method of a cable housing tube in which a cable is housed.
Forming a hole in the outer peripheral surface of the cable housing tube;
A plate-shaped protective member having flexibility is inserted into the cable housing tube from the hole, and the cable protective member is inserted in the circumferential direction along the inner peripheral surface of the cable housing tube. , A protective member arranging step for arranging so as to surround the outside of the cable;
The portion of arranging the protective member in the cable accommodating tube, seen including a cutting step of cutting the outer circumferential surface of the cable receiving tube in the circumferential direction, and
The protective member has an insertion hole into which an insertion tool can be inserted,
In the protective member arranging step, an insertion tool is inserted into the insertion hole of the protective member inserted into the cable housing tube from the hole, and the insertion tool is driven with a hammer in the insertion direction of the protective member. And

本発明によれば、施工性に優れ、収容されたケーブルの損傷を防止することが可能なケーブル収容管の切断方法を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, it is excellent in workability | operativity and can provide the cutting method of the cable accommodation pipe | tube which can prevent the damage of the accommodated cable.

（ａ）は、本発明の一実施形態に係るケーブル収容管の切断方法を示す図であり、（ｂ）は、本実施形態のケーブル収容管の切断方法で用いるケーブル防護部材の一例を示す斜視図である。(A) is a figure which shows the cutting method of the cable accommodation pipe | tube which concerns on one Embodiment of this invention, (b) is a perspective view which shows an example of the cable protection member used with the cutting method of the cable accommodation pipe | tube of this embodiment. FIG. （ａ）は、本発明の一実施形態に係るケーブル収容管の切断方法を示す図であり、（ｂ）は、従来のケーブル収容管の切断方法を示す図である。(A) is a figure which shows the cutting method of the cable accommodation pipe | tube which concerns on one Embodiment of this invention, (b) is a figure which shows the cutting method of the conventional cable accommodation pipe | tube. ケーブル収容管にケーブル防護部材を挿入する方法の一例を示す図である。It is a figure which shows an example of the method of inserting a cable protection member in a cable accommodating pipe. ケーブル収容管の補修作業の手順を示すフローチャートである。It is a flowchart which shows the procedure of the repair work of a cable accommodation pipe | tube.

以下に、本発明の一実施形態に係るケーブル収容管の切断方法について例示説明する。図１（ａ）は、通信用等のケーブル１が収容されたケーブル収容管２に形成した孔部３から、ケーブル防護部材４を挿入する様子を示したものである。   Below, the cutting method of the cable accommodation pipe | tube which concerns on one Embodiment of this invention is illustrated and demonstrated. FIG. 1A shows a state in which a cable protection member 4 is inserted from a hole 3 formed in a cable housing tube 2 in which a cable 1 for communication or the like is accommodated.

ここで、図１（ｂ）は、図１（ａ）のケーブル防護部材４を単独で示したものである。ケーブル防護部材４は、一定の厚さを有する細長い板状の部材であって、図示のように先端部は徐々に厚さが小さくなり、その先端は丸みを帯びている。本実施形態のケーブル防護部材４には、後述する差込み工具を挿入可能な複数の差込み孔５が形成されている。本実施形態において差込み孔５は、ケーブル防護部材４における幅方向の中央部に、長手方向に等間隔で配置されているが、孔の数、径、および間隔等は適宜定めることができる。   Here, FIG.1 (b) shows the cable protection member 4 of Fig.1 (a) independently. The cable protection member 4 is an elongated plate-like member having a constant thickness. As shown in the figure, the tip portion gradually decreases in thickness, and the tip is rounded. The cable protection member 4 of the present embodiment is formed with a plurality of insertion holes 5 into which insertion tools to be described later can be inserted. In the present embodiment, the insertion holes 5 are arranged at equal intervals in the longitudinal direction at the center in the width direction of the cable protection member 4. However, the number, diameter, interval, and the like of the holes can be determined as appropriate.

ここで、本実施形態において、ケーブル収容管２は、内周面の直径が８０．７ｍｍの鋼管とし、孔部３は、直径２５ｍｍの円形状としている。また、本実施形態のケーブル防護部材４の材料としては、例えば、三井化学ファブロ株式会社製の商品名：パロニアスーパーＨＤ等を用いることができる。また、本実施形態のケーブル防護部材４は、長さＬを３００ｍｍ、幅Ｗを２０ｍｍ、厚さＴを５ｍｍとしている。また、ケーブル防護部材４において、厚さＴが徐々に減少する先端部４ａの長さＥを２．５〜５．０ｍｍとし、差込み孔の間隔Ｐを３０ｍｍとしているが、これに限られるものではない。ここで、切断するケーブル収容管２の内周面から、切管工具６の切断刃７が到達する径方向最内端までの径方向長さを刃先食込み長さとすると、ケーブル防護部材４の厚さＴは、刃先食込み長さ以上となっている。   Here, in the present embodiment, the cable housing tube 2 is a steel tube having an inner peripheral surface diameter of 80.7 mm, and the hole 3 has a circular shape having a diameter of 25 mm. Moreover, as a material of the cable protection member 4 of the present embodiment, for example, trade name: Palonia Super HD manufactured by Mitsui Chemicals Fabro Co., Ltd. can be used. Further, the cable protection member 4 of the present embodiment has a length L of 300 mm, a width W of 20 mm, and a thickness T of 5 mm. Further, in the cable protection member 4, the length E of the tip portion 4a at which the thickness T gradually decreases is set to 2.5 to 5.0 mm, and the interval P between the insertion holes is set to 30 mm. Absent. Here, when the radial length from the inner peripheral surface of the cable housing tube 2 to be cut to the radially innermost end reached by the cutting blade 7 of the cutting tube tool 6 is the cutting edge biting length, the thickness of the cable protection member 4 The length T is equal to or longer than the cutting edge biting length.

本実施形態において、ケーブル収容管２を切断する際には、先ず、図１（ａ）に示すように、ケーブル収容管２の切断箇所に孔部３を形成する。孔部３を形成する方法は特に限定されるものではないが、例えば、手動式又は電動式の孔あけ機具等を用いた切削等とすることができる。この孔あけ機具としては、例えば、エクシオ物流サービス株式会社製のケーブル確認機を用いることができる。ここで、ケーブル収容管２の内部でケーブル１は自重により下方に位置することが多いため、孔部３はケーブル収容管２における上側に形成してケーブル１の損傷を防止することが好ましい。   In this embodiment, when the cable housing tube 2 is cut, first, as shown in FIG. 1A, the hole 3 is formed at the cut portion of the cable housing tube 2. Although the method of forming the hole 3 is not particularly limited, for example, cutting using a manual or electric drilling machine can be used. As this drilling device, for example, a cable checker manufactured by Excio Logistics Service Co., Ltd. can be used. Here, since the cable 1 is often positioned below inside the cable housing tube 2 due to its own weight, the hole 3 is preferably formed on the upper side of the cable housing tube 2 to prevent the cable 1 from being damaged.

次いで、孔部３からケーブル収容管２の内部を目視確認して、ケーブル１の有無を判定する。ケーブル収容管２にケーブル１が収容されていない場合には、従来方法等によりケーブル収容管２の切断を行うことができる。ケーブル収容管２にケーブル１が収容されている場合には、図示のように当該孔部３からケーブル防護部材４を挿入していく。そして、ケーブル収容管２の内周面に沿わせながらケーブル防護部材４を挿入していき、図１（ａ）に示すように、ケーブル１の外側を取り囲むようにケーブル防護部材４を配置する。すなわち、ケーブル防護部材４を、ケーブル１と、ケーブル収容管２の内周面との間に配置する。このとき、ケーブル１は、ケーブル防護部材４の厚さＴの分だけ、ケーブル収容管２の内周面から浮いた状態となっている。   Next, the inside of the cable housing tube 2 is visually confirmed from the hole 3 to determine the presence or absence of the cable 1. When the cable 1 is not accommodated in the cable accommodation tube 2, the cable accommodation tube 2 can be cut by a conventional method or the like. When the cable 1 is accommodated in the cable accommodation tube 2, the cable protection member 4 is inserted from the hole 3 as shown in the figure. Then, the cable protection member 4 is inserted along the inner peripheral surface of the cable housing tube 2, and the cable protection member 4 is arranged so as to surround the outside of the cable 1 as shown in FIG. That is, the cable protection member 4 is disposed between the cable 1 and the inner peripheral surface of the cable housing tube 2. At this time, the cable 1 is in a state of floating from the inner peripheral surface of the cable housing tube 2 by the thickness T of the cable protection member 4.

ここで、ケーブル防護部材４の先端には、孔部３への挿入前に、予め潤滑剤を塗布しておくことが好ましい。これにより、ケーブル防護部材４と、ケーブル１およびケーブル収容管２の内面との間に生じる摩擦が低減するので、ケーブル防護部材４の挿入をより容易にするとともに、各部材の損傷を防止することができる。潤滑剤としては、例えば住友スリーエム株式会社製の商品名「ポリウォーターJタイプ」等を用いることができる。   Here, it is preferable to apply a lubricant to the tip of the cable protection member 4 in advance before insertion into the hole 3. Thereby, since the friction which arises between the cable protection member 4 and the inner surface of the cable 1 and the cable accommodating pipe 2 is reduced, the cable protection member 4 can be more easily inserted and damage to each member can be prevented. Can do. As the lubricant, for example, trade name “Polywater J type” manufactured by Sumitomo 3M Limited may be used.

ここで、例えばケーブル布設時に用いる高分子系潤滑剤や流入した土砂がケーブル１とケーブル収容管２の間で凝固して、ケーブル１とケーブル収容管２の内周面とが付着している場合など、ケーブル防護部材４の挿入が難しいことがある。このような場合には、図３に示すように、ポンチ等の差込み工具９をケーブル防護部材４の差込み孔５に挿入し、この差込み工具９を、ケーブル防護部材４の挿入方向にハンマー１０等で打ち込むことが好ましい。これにより、上記のようにケーブル１とケーブル収容管２の内周面とが付着している場合でも、ケーブル１とケーブル収容管２の間に、確実にケーブル防護部材４を挿入することができる。   Here, for example, when the polymeric lubricant used when laying the cable or the earth and sand that has flowed in is solidified between the cable 1 and the cable housing tube 2, the cable 1 and the inner peripheral surface of the cable housing tube 2 adhere to each other. For example, it may be difficult to insert the cable protection member 4. In such a case, as shown in FIG. 3, an insertion tool 9 such as a punch is inserted into the insertion hole 5 of the cable protection member 4, and the insertion tool 9 is inserted into the insertion direction of the cable protection member 4 with a hammer 10 or the like. It is preferable to drive in. Thereby, even when the cable 1 and the inner peripheral surface of the cable housing tube 2 are adhered as described above, the cable protection member 4 can be reliably inserted between the cable 1 and the cable housing tube 2. .

ケーブル防護部材４の配置が完了した後、ケーブル収容管２を切断する。このとき、ケーブル防護部材４を配置した部分に切断刃７が位置するように切管工具６を設置する。図２（ａ）は、専用の切管工具６をケーブル収容管２に設置して、ケーブル収容管２を切断する様子を示している。切管工具６は円環状であり、ケーブル収容管２の外周面を全周にわたって囲むように配置される。また、切管工具６は、１個の円盤状の切断刃７と、切断刃７に対向する２個の円筒状のローラ８とを有し、ケーブル収容管２は切断刃７とローラ８との間に挟持される。この状態で切管工具６をケーブル収容管２の外周面に沿って回転させると、切断刃７によってケーブル収容管２が外側から周方向に切断される。上述したように、ケーブル１は、ケーブル収容管２の内周面から少なくともケーブル防護部材４の厚さＴ以上離れた位置にあるため、切断刃７の先端がケーブル１に接触することはない。   After the arrangement of the cable protection member 4 is completed, the cable housing tube 2 is cut. At this time, the cutting tool 6 is installed so that the cutting blade 7 is positioned at the portion where the cable protection member 4 is disposed. FIG. 2A shows a state in which the dedicated cutting tube tool 6 is installed in the cable housing tube 2 and the cable housing tube 2 is cut. The cutting tube tool 6 has an annular shape and is arranged so as to surround the outer peripheral surface of the cable housing tube 2 over the entire circumference. Moreover, the cutting tube tool 6 has one disk-shaped cutting blade 7 and two cylindrical rollers 8 facing the cutting blade 7, and the cable housing tube 2 includes the cutting blade 7, the roller 8, and the like. Is sandwiched between. When the cutting tube tool 6 is rotated along the outer peripheral surface of the cable housing tube 2 in this state, the cable housing tube 2 is cut from the outside in the circumferential direction by the cutting blade 7. As described above, since the cable 1 is located at least the thickness T of the cable protection member 4 from the inner peripheral surface of the cable housing tube 2, the tip of the cutting blade 7 does not contact the cable 1.

以上のような本実施形態のケーブル収容管２の切断方法によれば、施工前にケーブル１を目視確認するための孔部３を利用して、内部に収容されたケーブル１の損傷を防止しながら、簡易かつ効率的にケーブル収容管２を切断することができる。すなわち、従来は、図２（ｂ）に示すように、ケーブル収容管２の切断の際に、切管工具６の切断刃７がケーブル１に接触してケーブル１を損傷する虞があったものの、本実施形態の方法によれば、図２（ａ）に示すように、ケーブル収容管２の内周面からケーブル１までの距離を切断刃７の刃先食込み長さ以上確保し、切管工具６の切断刃７の先端がケーブル１に到達することを防ぐことができる。これにより、ケーブル収容管２に錆、腐食による減肉部分がある場合や、刃先調整の調整ミスがあった場合にも、切断作業時の切断刃７によるケーブル１の損傷を防止することができる。   According to the cutting method of the cable housing tube 2 of the present embodiment as described above, damage to the cable 1 housed inside is prevented by utilizing the hole 3 for visually confirming the cable 1 before construction. However, the cable housing tube 2 can be cut easily and efficiently. That is, conventionally, as shown in FIG. 2B, when the cable housing tube 2 is cut, the cutting blade 7 of the cutting tube tool 6 may come into contact with the cable 1 to damage the cable 1. According to the method of the present embodiment, as shown in FIG. 2 (a), the distance from the inner peripheral surface of the cable housing tube 2 to the cable 1 is ensured to be longer than the cutting edge biting length of the cutting blade 7, and the cutting tube tool It is possible to prevent the tip of the six cutting blades 7 from reaching the cable 1. Thereby, even when there is a thinned part due to rust or corrosion in the cable housing tube 2 or when there is an adjustment error in blade edge adjustment, it is possible to prevent the cable 1 from being damaged by the cutting blade 7 during the cutting operation. .

また、本実施形態におけるケーブル収容管２の切断方法によれば、切管工具６の複雑な刃先調整が不要であるため施工時間が短縮することに加え、刃先調整が不要となることで電動の輪切り切管工具も使用できるため、さらに作業時間を短縮することが可能となる。また、複雑な刃先調整が不要となるため、作業者の技術レベルに関わらず、ケーブル１を損傷させることなくケーブル収容管２の切断作業を行うことができる。   Moreover, according to the cutting method of the cable housing tube 2 in the present embodiment, since the complicated cutting edge adjustment of the cutting tube tool 6 is unnecessary, the construction time is shortened, and the cutting edge adjustment is not necessary, so Since a ring cutting tube tool can also be used, the working time can be further reduced. Moreover, since complicated blade edge adjustment is not necessary, the cable housing tube 2 can be cut without damaging the cable 1 regardless of the technical level of the operator.

また、本実施形態におけるケーブル収容管２の切断方法は、ケーブル１の種類、本数、直径等に関わらず、様々な形態のケーブル１を収容するケーブル収容管２に適用可能である。また、本実施形態におけるケーブル収容管２の切断方法は、ケーブル収容管２の材質、大きさ等によって特に適用が制限されず、様々な種類のケーブル収容管２に適用することができる。さらに、本実施形態におけるケーブル収容管２の切断方法によれば、マンホールのダクト口やビルへの引き込み口等に限らず、所望の場所でケーブル収容管２の切断を行うことができる。   Moreover, the cutting method of the cable housing tube 2 in the present embodiment is applicable to the cable housing tube 2 that houses various types of cables 1 regardless of the type, number, diameter, and the like of the cables 1. The method for cutting the cable housing tube 2 in the present embodiment is not particularly limited by the material, size, etc. of the cable housing tube 2 and can be applied to various types of cable housing tubes 2. Furthermore, according to the cutting method of the cable housing tube 2 in the present embodiment, the cable housing tube 2 can be cut at a desired place, not limited to the duct hole of the manhole or the entrance to the building.

なお、孔部３への挿入を容易にするため、本実施形態におけるケーブル防護部材４の幅Ｗは、孔部３の直径よりも小さいことが好ましい。また、ケーブル防護部材４の長さＬは、ケーブル収容管２の内周面の円周長以上であることが好ましく、これによれば、ケーブル１の外側を全周にわたって取り囲むことができるので、より確実にケーブル１の損傷を防止することができる。また、ケーブル防護部材４の厚さＴは、切管工具６の切断刃７を、刃先調整により最大まで突出させた場合の切断刃７の長さよりも大きいことが好ましく、これによれば、より確実にケーブル１の損傷を防止することができる。ケーブル防護部材４の材質としては、ケーブル収容管２の内周面に沿って湾曲可能な程度の可撓性を有するとともに、挿入時に破損しない強度を有することが望ましく、これによれば、ケーブル防護部材４のケーブル収容管２への配置がより容易となる。また、より確実にケーブル１の損傷を防止するため、ケーブル防護部材４は、ケーブル１の重量によって厚さが減少しない程度の強度を有することが望ましい。   In order to facilitate insertion into the hole 3, the width W of the cable protection member 4 in this embodiment is preferably smaller than the diameter of the hole 3. In addition, the length L of the cable protection member 4 is preferably equal to or greater than the circumferential length of the inner peripheral surface of the cable housing tube 2, and according to this, the outside of the cable 1 can be surrounded over the entire circumference. Damage to the cable 1 can be prevented more reliably. The thickness T of the cable protection member 4 is preferably larger than the length of the cutting blade 7 when the cutting blade 7 of the cutting tube tool 6 is projected to the maximum by adjusting the blade edge. Damage to the cable 1 can be reliably prevented. As a material of the cable protection member 4, it is desirable that the cable protection member 4 is flexible enough to be bent along the inner peripheral surface of the cable housing tube 2 and has a strength that does not break at the time of insertion. The arrangement of the member 4 on the cable housing tube 2 becomes easier. In order to prevent damage to the cable 1 more reliably, it is desirable that the cable protection member 4 has a strength that does not reduce the thickness due to the weight of the cable 1.

本発明を諸図面や実施例に基づき説明してきたが、当業者であれば本開示に基づき種々
の変形や修正を行うことが容易であることに注意されたい。従って、これらの変形や修正
は本発明の範囲に含まれることに留意されたい。例えば、各部材、各ステップなどに含まれる機能などは論理的に矛盾しないように再配置可能であり、複数の構成部やステップなどを１つに組み合わせたり、或いは分割したりすることが可能である。 Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, the functions included in each member, each step, etc. can be rearranged so that there is no logical contradiction, and a plurality of components, steps, etc. can be combined into one or divided. is there.

１ ケーブル
２ ケーブル収容管
３ 孔部
４ ケーブル防護部材（防護部材）
５ 差込み孔
６ 切管工具
７ 切断刃
８ ローラ 1 Cable 2 Cable receiving tube 3 Hole 4 Cable protection member (protection member)
5 Insertion hole 6 Cutting tube tool 7 Cutting blade 8 Roller

Claims (2)

内部にケーブルが収容されているケーブル収容管の切断方法であって、
前記ケーブル収容管の外周面に孔部を形成するステップと、
可撓性を有する板状の防護部材を、前記孔部から前記ケーブル収容管の内部に挿入し、該ケーブル収容管の内周面に沿わせながら周方向に該ケーブル防護部材を挿入していき、前記ケーブルの外側を取り囲むように配置する防護部材配置ステップと、
前記ケーブル収容管における前記防護部材を配置した部分を、該ケーブル収容管の外周面側から周方向に切断する切断ステップと、を含み、
前記防護部材は、差込み工具を挿入可能な差込み孔を有し、
前記防護部材配置ステップは、前記孔部から前記ケーブル収容管の内部に挿入した防護部材の前記差込み孔に差込み工具を挿入し、前記防護部材の挿入方向に該差込み工具をハンマーで打ち込むことを特徴とするケーブル収容管の切断方法。 A method for cutting a cable housing pipe in which a cable is housed.
Forming a hole in the outer peripheral surface of the cable housing tube;
A plate-shaped protective member having flexibility is inserted into the cable housing tube from the hole, and the cable protective member is inserted in the circumferential direction along the inner peripheral surface of the cable housing tube. , A protective member arranging step for arranging so as to surround the outside of the cable;
The portion of arranging the protective member in the cable accommodating tube, seen including a cutting step of cutting the outer circumferential surface of the cable receiving tube in the circumferential direction, and
The protective member has an insertion hole into which an insertion tool can be inserted,
In the protective member arranging step, an insertion tool is inserted into the insertion hole of the protective member inserted into the cable housing tube from the hole, and the insertion tool is driven with a hammer in the insertion direction of the protective member. A method for cutting the cable housing tube. 前記防護部材配置ステップに先立ち、前記防護部材に潤滑剤を塗布する潤滑剤塗布ステップを含む、請求項１に記載のケーブル収容管の切断方法。   The method for cutting a cable housing tube according to claim 1, further comprising a lubricant application step of applying a lubricant to the protection member prior to the protection member arranging step.
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