KR20210003837A - Simple type protective tube inserter - Google Patents

Abstract

It has a lightweight and compact configuration, and provides a protective pipe inserter that can prevent the protective pipe from falling off during insertion. The protective pipe inserter 1 is fixed to the overhead electric wire 100 by the electric wire clamping part 10 which is clamped from two directions. On the side of the fixed clamping piece of the electric wire clamping part 10, an inserting plate 4 to be inserted into the slit of the protective tube is erected and installed. An electric wire receiving part 2 facing the processed electric wire 100 is installed on the fixed fitting support side. On the edge 4b of the insertion plate 4, a guide rail 6 is arranged so that one end, which is the insertion side, is brought close to the electric wire receiving portion 2 and inclined toward the processed electric wire 100. In the corner portion 4a formed with an acute angle between one end of the guide rail 6 and the electric wire receiving portion 2, a width expansion hole 8 for expanding the slit of the protective pipe (8 ) Is installed. On the side of the movable clamping piece 14 of the wire clamping part 10, a support handle 16 is extended and installed toward one end of the guide rail 6 substantially parallel to the wire catching part 2 (延It is written.

Description

Simple type protective tube inserter

[0001] The present invention relates to a simple type protective pipe inserter without a driving device for inserting or removing a protective pipe covering an electric wire installed on a telephone pole or the like.

[0002] A protective pipe is used to protect the overhead wires from damage caused by contact with trees, etc. In addition, when working in the vicinity of an overhead electric wire, a protective pipe is also used in order to prevent an operator or work equipment from touching the electric wire.

6 is a perspective view of the connected protective pipe 101.

[0004] A body portion 102 constituting the protective pipe 101 shown in FIG. 6, and a female fitting portion formed on one end side of the body portion 102 103 and the male fitting portion 104 formed on the other end side are formed of an insulating material having elasticity and flexibility. These have an inner diameter capable of accommodating the overhead electric wire 100 inside, as indicated by a virtual line, and above the main body 102, a slit shape in a straight line in the longitudinal direction. An opening 107 is formed. With such a material and shape, the opening 107 is opened, the processed electric wire 100 is accommodated inside, and the protective pipe 101 is entrusted with a restoring force based on the elasticity of the protective pipe 101 to close the processed electric wire 100. . A pair of fin portions 109 extending parallel to the diameter expansion side of the cylinder, respectively, from the opposite edge portions forming the opening 107 Is formed.

[0005] In addition, as shown in FIG. 6, a male fitting portion 104 is formed at one end in the longitudinal direction of the protective pipe 101, and the other end having the male fitting portion 104 A female fitting portion 103 that can be connected to the protective pipe 101 is formed. Each of these connected protective pipes 101 is set to a predetermined length, and a plurality of them are connected and extended by each of the male and female fitting portions 103 and 104 to cover the long overhead electric wire 100. have.

Here, the male fitting portion 104 has an outer diameter larger than that of the body portion 102. In addition, the female fitting portion 103 is provided with a receiving portion 106 capable of accommodating the male fitting portion 104 during fitting and engaging therein. Accordingly, the receiving portion 106 of the female fitting portion 103 has an outer diameter larger than that of the male fitting portion 104.

In general, when mounting the protective pipe 101 as described above to the overhead wire 100, after first inserting the first protective pipe 101 into the processing wire 100, then the second protective pipe ( The tip of 101) is inserted into the overhead electric wire 100, and in the state of being inserted into the overhead electric wire 100, these two protective pipes 101 are inserted into the male and female fitting portions 103 and 104 of each other. Connected by Then, by repeating such an operation, a plurality of protective pipes 101 are inserted into the overhead electric wire 100.

Next, a device for inserting the protective pipe 101 as described above into the overhead wire 100 will be described.

7 is a front view of a conventional tube inserter 110. This pipe inserter 110 is fixed to the processed electric wire 100 by being fitted by the electric wire pressing angle 111 of the upper end and the guide body 112. The protective pipe 101 guided along the guide rod 113 extending from the guide body 112 passes between the guide body 112 and the driving tire 116. In the protective pipe 101, which has been further displaced, the opening 107 (refer to FIG. 6) is extended by the plate 115 for pipe expansion, and is guided to the overhead electric wire 100.

Here, the guide body 112 is provided with a roller 127 in order to reduce friction with the protective pipe 101 on the side and the lower end side. Thereby, the sliding contact resistance can be reduced, and the protective tube 101 can be smoothly inserted into the processed electric wire 100 without losing the force applied from the driving tire 116. . About the tube inserter 110 as mentioned above, it is described in patent document 1.

Japanese Patent Laid-Open Publication No. H08-182135

The tube inserter 110 as described above requires a driving tire 116 and a device for driving it, so that the total weight is increased by that amount. Further, since the weight of the tube inserter 110 as a whole is increased, and the installation time of the drive system is required, the work efficiency is not good. Therefore, in order to achieve weight reduction, it is most effective to omit the configuration of the drive system including the drive tire 116.

On the other hand, since the guide bar 113 is inclined for the processed wire 100 to be gripped (把持), when hitting the processed wire 100 along the guide bar 113, the protective pipe 101, the room The arc pipe 101 receives a large reaction force from the overhead electric wire 100 side. For this reason, in the configuration in which the drive tire 116 is omitted, it is necessary to work while pressing it toward the processing electric wire 100 so that the protective pipe 101 does not come off from the pipe for expansion 115.

Accordingly, it is an object of the present invention to provide a protective pipe inserter capable of preventing the protective pipe from falling off during insertion while having a lightweight and compact configuration.

[0015] In order to achieve the above object, the simple type protective pipe inserter of the present invention, as a protective pipe inserter for inserting a protective pipe having a slit formed therein from an oblique direction with respect to a processed wire while expanding a part of the slit, An electric wire receiving part facing the overhead electric wire, an insertion plate erected on the electric wire receiving part and inserted into the slit, and a corner part of an acute angle between the electric wire receiving part at one end A guide rail installed at the edge of the insertion plate to form a) and guided by sliding contact with the inner wall of the protective tube, and installed at the edge of the insertion plate, and formed to gradually increase the thickness toward the one end At the same time, it is characterized in that it is provided with a width extension tool having a step extending in a direction that is steeper than the guide rail so as to cross between the guide rail and the wire receiving part. do.

In addition, the simple protective pipe inserter of the present invention, in addition to the above configuration, the processing from two directions by a fixed fitting support piece (挾持片), and a movable fitting support piece in which the insertion plate is integrally installed It characterized in that it is characterized in that it comprises an electric wire clamping part for clamping an electric wire, and a support handle for supporting the whole, extending toward the one end side on the movable clamping piece side of the electric wire clamping part. .

[0017] In addition, the simple protective tube inserter of the present invention, in addition to the above configuration, of the edges forming the step of the width expansion tool, the region at one end is at a gentle angle with respect to the insertion plate It is characterized in that it is formed of.

[0018] As described above, according to the present invention, since the width extension tool installed at the edge of the insertion plate between the guide rail and the wire receiving part has a step extending in a steeper direction than the guide rail, the slit The protective pipe that slides over the width expansion sphere while expanding is guided to the processing wire side along the step. Thereby, since the protective pipe can be pushed toward the overhead electric wire based on the step difference, it becomes possible to prevent the protective pipe from floating against the recoil when the tip hits the overhead electric wire.

[0019] In addition, according to the present invention, in addition to the above effect, since the wire fitting support portion is provided with a support handle on the opposite side of the movable fitting support side with the processing wire interposed between the fixed fitting support piece installed integrally with the insertion plate , It is possible to stabilize the protective pipe inserter shaking by the weight of the protective pipe passing through the position away from the overhead wire. In addition, the support handle extends toward one end of the guide rail, which is the direction in which the installed overhead wire extends, and can maintain a substantially parallel relationship with the overhead wire, so that it can be held at any angle without changing or significantly changing posture. It becomes possible to hold it stably only in

In addition, according to the present invention, in addition to the above effect, the edge formed by the step on the width expansion sphere, one end side of the guide rail, that is, the insertion side of the protective tube, is smooth with respect to the insertion plate It is formed at an angle. Thereby, the expanded protective pipe can smoothly escape from the width expansion port and move to the overhead electric wire side without being hit by a step.

1 is an overall perspective view of the protective tube inserter according to the present embodiment as viewed from the front side.
Fig. 2 is an overall perspective view showing a part of the protective tube inserter of Fig. 1 (a width expansion tool to be described later) in an exploded state.
Fig. 3 shows one of the width expansion spheres, where (a) is a front view, (b) is a plan view, (c) is a bottom view, and (d) is an enlarged right side view.
4 is a view showing a state in which the protective pipe inserter is in use, (a) is a state in which the tip of the protective pipe is located on the insertion plate, and (b) is a diagram showing a state in which the tip of the protective pipe is located on the width expansion hole to be.
Fig. 5 is a view showing a state of a protective pipe passing through a width expansion hole in which (a) is a state in which the tip of the protective pipe passes, and (b) is a diagram showing a state in which an intermediate portion of the protective pipe passes.
6 is a perspective view showing a conventional protective pipe.
7 is a front view showing a conventional tube inserter.

[0022] Hereinafter, a protective tube inserter of the present invention will be described with reference to the drawings.

1 is an overall perspective view of the protective tube inserter 1 according to the present embodiment as viewed from the front side. In addition, FIG. 2 is an overall perspective view showing a partially exploded state of the protective tube inserter 1 of FIG. 1 (a width expansion device 8 described later). Here, the direction in which the protective tube is inserted is referred to as the insertion side. In addition, for the protective pipe shown in the description, the protective pipe 101 in FIG. 6 is appropriately referred to, and the configuration in which the pin portion 109 is formed in the slit 107 as shown in FIG. 6 will be described as an example. .

The protective pipe inserter (1) has a wire fitting support portion (10) for fitting the processed wire (100) from two directions. This electric wire clamping part 10 has an electric wire receiving bracket 2 as a fixed clamping piece at the upper side, and a movable clamping piece 14 opposed to the electric wire receiving fitting 2 is provided on the lower side. I have. The electric wire receiving bracket 2 is formed with a groove in the lower side so that it can run along the outer surface of the processed electric wire 100.

[0025] An insertion plate 4 of an almost triangular plate shape is erected and installed in the electric wire receiving bracket 2. The insertion plate 4 is fitted in the slit 107 of the protective tube 101 and provided to correct distortion (see Fig. 6).

Guide rail 6 is installed along the edge (4b) of the upper end of the insertion plate (4). The guide rail 6 fits into the protective pipe 101 together with the edge 4b of the upper end of the insertion plate 4 and is provided to guide the protective pipe 101 from the inside. In the configuration according to the present embodiment, a resin material having a small coefficient of friction is used for the guide rail 6.

[0027] In the corner portion 4a of an acute angle formed between the one end of the guide rail 6 and the wire receiving bracket 2, a width extension 8 is provided. Although not shown in FIG. 1, this width expansion tool 8 is provided on both sides of the insertion plate 4. The width extension 8 is attached to the insertion plate 4 so as to be detachable. The state removed from the insertion plate 4 is shown in the exploded view of FIG. 2. It can be easily removed by two screws.

As can be seen in Figure 1, the wire receiving bracket 2 described above is formed to increase the width in the vicinity of the width extension (8). Since it is formed in this way, when the protective pipe 101 slides on the guide rail 6 and moves to the processing electric wire 100 side, the outer skin of the processing electric wire 100 is prevented from being damaged by the protective pipe 101 can do.

The width of the width extension unit 8 is defined as a size in which the protective pipe 101 can move smoothly with respect to the processed wire 100. Here, it is set to a size larger than the width of the guide rail 6 and slightly smaller than the width of the electric wire receiving bracket 2. In addition, a step 8e (described later with reference to FIG. 3) inclined in the same direction as the guide rail 6 is formed on the side surface of the width expansion port 8.

Next, it will be described in detail the shape of the width extension (8).

Figure 3 is to show one of the two parts (parts) of the width extension (8), (a) is a front view, (b) is a plan view, (c) is a bottom view, (d) is a right side Is also. In addition, the right side view of (d) is enlarged and shown for convenience of explanation. In addition, the positional relationship is clearly indicated by hatching on the surface indicated by the step 8e mentioned in the above description. The insertion side of the protective pipe 101 is on the left side of the paper.

First, referring to the front view of FIG. 3 (a), four surfaces are shown in the width expansion sphere (8). Among these surfaces, the surface located on the rightmost side of the ground is the scooping portion on which the protective pipe 101, which is conveyed above the guide rail 6 (see Fig. 1), first climbs in order to insert it into the processing electric wire 100 ( It is a surface formed by the scooping portion) 8a. By this scooping part 8a, the slit 107 which is the opening side of the protective pipe 101 which is conveyed from the head is widened as if being taken out.

The surface connected to the insertion side with respect to the scooping portion 8a is a surface formed by the first gradual change portion 8b. The first west-side portion 8b is formed to have a gentler slope than the scooping portion 8a when viewed from the insertion plate 4 (see Fig. 1). The slit 107 at which an opportunity for expansion was obtained by the scooping portion 8a is gradually expanded by getting on the first western edge portion 8b as the protective tube 101 moves toward the insertion side.

The surface shown above the first west side portion 8b is a side surface that is the second west side portion 8c. The 2nd west edge part 8c is formed so that the slope may become slightly larger than the 1st west edge part 8b. Thereby, a step 8e is formed between both. The difference in the magnitude of this inclination angle is shown in Fig. 3B. Here, the inclined surface of the first west side portion 8b is indicated by a dotted line. As described above, the step 8e formed by the difference in the size of the inclination angle is shown by hatching in the bottom view of Fig. 3C. Similarly, also in FIG. 3(d), the surface forming the step 8e is hatched.

Finally, the surface shown on the left side of the second west side portion 8c is an outer surface, which is a width defining portion 8d that regulates the expanded width by the width expansion port 8. Among the width extension openings 8, this width defining portion 8d protrudes most in the width direction. In the configuration according to the present embodiment, the outer surface, which is the width defining portion 8d, is formed substantially parallel to the insertion plate 4.

[0036] Hereinafter, the operation in the state of use will be described.

Figure 4 is a state of use of the protective pipe inserter (1), (a) is a state in which the tip of the protective pipe 101 is located on the insertion plate (4), (b) is a width extension ( 8) It shows a state in which the tip of the protective pipe 101 is located on the top.

Since the slit 107 of the protective tube 101 formed of a resin material is closed in a state where no external force is applied, it is transferred while sliding contact with the insertion surface until it reaches the width expansion port 8 come. Since the guide rail 6 is formed slightly larger than the closed slit 107, it is possible to reach the width expansion port 8 without falling out even in a rough operation.

As shown in Figure 4 (b), when the front end of the protective pipe 101 reaches the width expansion opening 8, as described above, first, the opening side of the slit 107 is the scooping portion (8a) ), and move to the first western part (8b). Here, returning to Fig.3 (a), the ridge line formed between the scooping portion 8a and the first western edge portion 8b is inclined to the same side as the guide rail 6, and further, the guide rail 6 It is formed with a steeper slope. Thereby, when moving from the scooping part 8a to the 1st west side part 8b, the slit 107 which is an opening of the protective pipe 101 is guided to the processing electric wire 100 side along a ridge line. In this way, at least, the protective pipe 101 that has been transported so as not to be removed from the guide rail 6 is at any height by the ridge line between the scooping portion 8a and the first western edge portion 8b as a first step. The position is corrected toward the processing electric wire 100 side.

[0040] Subsequently, when the slit 107 of the protective pipe 101 passes above the first western part 8b, a step 8e between the second western part 8c and the second western part 8c as described above Since it is formed, the end portion of the slit 107 hits this step 8e. The slits 107 hit are guided along the edge formed in the step 8e. Here, with respect to this edge, the edge between the first west edge portion 8b and the second west edge portion 8c is referred to as the first edge 8f, and between the width defining portion 8d and the first west edge portion 8b The edge of will be referred to as a second edge 8g.

That is, the protective pipe 101, which has been moved from the scooping unit 8a, first moves on the first western side 8b along the first edge 8f. Like the ridge line mentioned above, this 1st edge 8f is inclined in the same direction as the guide rail 6, and is formed so that it may extend in a direction steeper than the guide rail 6. However, since the slope is small compared to the ridge line, it is gently guided to the overhead electric wire 100 side.

In the step of sliding the protective pipe 101 on the first west side (8b), a part of the pin portion 109 of the protective pipe 101 starts to be caught on the upper side of the wire receiving bracket (2). At the stage in which the width of the slit 107 is expanded while advancing from the scooping portion 8a to the first west side portion 8b, the pin portion 109 is widening to a sufficient width to follow the outer diameter of the overhead electric wire 100. In this way, gradually, since the expanding action on the side of the overhead electric wire 100 becomes dominant, the protective pipe 101 can be smoothly transferred from the width expansion tool 8 to the side of the processed electric wire 100.

[0043] In the configuration according to the present embodiment, as described above, on the insertion side of the first edge 8f, the slope with respect to the insertion plate 4 is a second edge that is gentler than the first edge 8f ( Since 8g) is connected, in a state in which the pin portion 109 is sufficiently raised on the side of the overhead electric wire 100, the inner wall of the protective pipe 101 can be escaped from the first edge 8f without being caught. In this way, the edge formed in the width expansion hole 8 is formed to be connected from the first edge 8f having a relatively large inclination to the second edge 8g having a small inclination at the insertion side, so that the protective pipe 101 It is a feature of the present invention that the slit 107 at the tip of the can smoothly ride over the processed electric wire 100.

[0044] Next, using FIG. 5, an explanation of the operation according to the front view will be given.

Figure 5 is to compare the state of the protective pipe 101 passing through the width expansion sphere (8), (a) is a state in which the tip of the protective pipe 101 passes, (b) is a protective pipe It shows a state in which the intermediate part of (101) passes. Here, for convenience of explanation, the position of the protective pipe 101 is indicated by a dotted line, and the position of the pin portion 109 is indicated by hatching.

Referring to Figure 5 (a), when the front end of the protective pipe 101 is inserted, the guide rail 6 to a position where the edge of the opening 107 of the tip contacts the processing wire 100 Accordingly, the protective pipe 101 is pushed out linearly. Therefore, the protective pipe 101 which is pushed out and comes into contact with the wire receiving bracket 2 receives a force in a direction away from the overhead electric wire 100 by a reaction force from the wire receiving bracket 2. In this way, in a stage that has not yet sufficiently shifted to the processed electric wire 100 side, the protective pipe 101 is easily removed from the guide rail 6 due to recoil from the electric wire receiving bracket 2 (or the processed electric wire 100). In the state, it has conventionally been a problem. However, in the configuration according to the present embodiment, as described above, until the pin portion 109 is sufficiently caught on the processing wire 100 side, in other words, until the pin portion 109 crosses the processing wire 100 , Since the action of pressing the first edge 8f toward the processing electric wire 100 is effective, it is possible to prevent the protective pipe 101 from falling off.

Next, referring to FIG. 5 (b), the front end of the protective pipe 101 accommodates the processed wire 100, and the intermediate position of the protective pipe 101 is near the width expansion sphere 8 In the passing step, a slight warpage is caused to follow the guide rail 6, but injuries occur at the intersection of the guide rail 6 and the wire receiving bracket 2. However, in this step, since the protective pipe 101 is already firmly holding the processed electric wire 100 on the insertion side, the protective pipe 101 does not come off.

Here, with respect to the positional relationship between the pin portion 109 and the second edge (8g), the states of Figure 5 (a), (b) is compared. In Fig. 5A, the upper end side of the pin portion 109, that is, the position of the slit 107 is shifted from the first edge 8f to the second edge 8g. In other words, it is a stage in which the tip of the protective pipe 101 is being pushed up from the electric wire receiving bracket 2 (the stage in which the resistance is greatest), and it is also a stage in which sufficient force is obtained to suppress injury.

On the other hand, in Figure 5 (b), although the protective pipe 101 slightly rises, in the portion already moving toward the processing wire 100, the open slit 107 is about to be closed by the restoring force The power to do is being applied. That is, since the injury is suppressed by this restoring force, the friction between the width expansion tool 8 and the protective tube 101 becomes a problem in this step. However, as described above, between the pin portions 109 overlapped with the second edge 8g, a jam such as friction with respect to the first edge 8f hardly occurs. Therefore, once the overhead electric wire 100 is accommodated in the protective pipe 101, the friction between the first edge 8f and the first edge 8f is rapidly reduced, so that the protective pipe 101 can be discharged almost without resistance.

As described above, according to the protective pipe inserter 1 according to the present embodiment, while preventing damage to the protective pipe 101, and preventing injury due to bumps to the processed wire 100, and Furthermore, it becomes possible to effectively suppress the jamming and smoothly discharge the protective pipe 101.

In this way, the guide rail 6 is disposed above the overhead wire 100 so that the protective pipe 101 can be inserted smoothly, so that the conventional guide rail 6 is disposed below As adopted in most cases, there is no need to arrange a guide roller or the like opposite to the guide rail 6, and the whole can be configured simply and lightweight.

In addition, even in the case of using the protective tube inserter 1 of the present embodiment by inverting the whole so that the guide rail 6 is located below the processing wire 100, the first edge 8f And the second edge 8g (mainly the first edge 8f) to lift the protective pipe 101 toward the upper processing wire 100 side, so that the protective pipe 101 is removed. It is possible to work safely without work.

By the way, when the operation is performed in a state in which the guide rail 6 is disposed above the processing wire 100, the weight of the protective pipe 101 is applied on the guide rail 6.

For this, the protective pipe inserter 1 is fixed to the processed electric wire 100 by the electric wire fitting support part 10, so one side of the guide rail 6 far away from the processed electric wire 100 (the above The other end side opposite to one end side, which is the side of the corner 4a), tends to become unstable.

However, in the configuration according to the present embodiment, since the support handle 16 is installed on the movable fitting piece 14 side of the wire fitting portion 10 (see FIG. 1), the guide rail 6 side It is possible to effectively suppress the shaking of the protective pipe 101 of.

In addition, since the direction in which the support handle 16 is extended is arranged in a direction along the direction in which the processing wire 100 is extended, the protective pipe inserter 1 is rotated around the processing wire 100 In the case of suppressing the movement to be attempted, a parallel posture with respect to the overhead electric wire 100 is maintained. Thereby, the wrist holding the support handle 16 can be prevented from twisting unnaturally.

Further, the configuration described above is an embodiment of the present invention, and the following modifications are also included.

[0058] In the above embodiment, the edge formed on the side of the width expansion tool 8 is on the insertion side of the first edge 8f having a relatively steep inclination with respect to the insertion plate 4, The configuration in which the two edges 8g are connected and installed is shown as an example. However, this edge may be formed linearly.

[0059] In addition, in the above-described embodiment, a configuration in which the scooping portion 8a is formed by being connected to the first west side portion 8b of the width expansion tool 8 is shown as an example. However, it does not matter if the configuration is directly connected from the insertion plate 4 to the first west side portion 8b. Moreover, by forming the scooping part 8a, it becomes possible to form the inclination of the 1st western edge part 8b smoothly.

In addition, in the above-described embodiment, the support handle 16 is shown as an example of a configuration arranged to extend in a direction substantially parallel to the overhead electric wire 100. However, as long as it extends toward the insertion side, which is one end of the guide rail 6, the support handle 16 may not be completely parallel to the processing electric wire 100.

[0061] In addition, in the above-described embodiment, the electric wire receiving bracket 2 shows an example configured as a fixed fitting support piece installed opposite the movable fitting support piece 14 in the electric wire fitting support portion 10 Done. However, the electric wire receiving bracket 2 provided to protect the processed electric wire 100 and the fixed fitting member for fixing the processed electric wire 100 may be configured as separate entities.

The protective pipe inserter 1 of the present invention can slide the protective pipe 101 smoothly with respect to the processed wire 100, so that not only the use of inserting the protective pipe 101, but also the protective pipe ( It is also useful for pulling out 101).

1: protective tube inserter
2: Electric wire receiving bracket (electric wire receiving part, fixed fitting support piece)
4: insert plate
4a: corner
4b: edge
6: guide rail
8: width extension
8a: scooping part
8b: First Western Division
8c: Second West Bank
8d: width regulation section
8e: step difference
8f: first edge
8g: second edge
10: wire insertion support
14: movable fitting support piece
16: support handle
100: overhead wire
101: Guardian
102: main body
103: female fitting portion
104: male fitting portion
106: receiving part
107: opening (slit)
109: pin part
110: tube inserter
111: angle
112: guide body
113: guide rod
115: expansion plate
116: driving tire
127: roller

Claims (3)

As a protective pipe inserter for inserting a protective pipe having a slit formed therein from an oblique direction with respect to the overhead electric wire while expanding a part of the slit
A wire receiving part facing the processed wire,
An insertion plate erected and installed on the electric wire receiving portion and inserted into the slit;
It is installed at the edge of the insertion plate so as to form an acute angle corner portion between the electric wire receiving portion on the one end side, and sliding contact with the inner wall of the protective pipe (摺接, a guide rail that guides by sliding contact),
It is installed at the corner of the insertion plate, is formed to gradually increase its thickness toward the one end, and is steeply inclined than the guide rail so as to cross between the guide rail and the wire receiving part. A width-extension hole with a step extending in the direction
Simplified protective tube inserter, characterized in that provided with. The method of claim 1,
An electric wire clamping part for holding the processed electric wire from two directions by a fixed fitting support piece in which the insertion plate is integrally installed, and a movable fitting support piece;
A support handle for supporting the whole, extending toward the one end side, on the side of the movable fitting side of the electric wire fitting portion
Simplified protective tube inserter, characterized in that provided with. The method according to claim 1 or 2,
A simplified protective tube inserter, characterized in that, of the edges forming the step of the width expansion tool, a region on the one end side is formed at a gentle angle with respect to the insertion plate.

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