CN112154583B - Simple protective tube inserter - Google Patents
Simple protective tube inserter Download PDFInfo
- Publication number
- CN112154583B CN112154583B CN201980034060.6A CN201980034060A CN112154583B CN 112154583 B CN112154583 B CN 112154583B CN 201980034060 A CN201980034060 A CN 201980034060A CN 112154583 B CN112154583 B CN 112154583B
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- electric wire
- guide rail
- wire
- width
- overhead
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
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- Suspension Of Electric Lines Or Cables (AREA)
- Electric Cable Installation (AREA)
- Cable Accessories (AREA)
- Joints With Sleeves (AREA)
Abstract
Provided is a protective tube inserter which is light and compact and can prevent a protective tube from falling off when inserted. The shield tube inserter (1) is fixed to an overhead wire (100) by a wire clamping section (10) that clamps from two directions. An incision plate (4) for incising the slit of the protective tube is vertically arranged on the fixed clamping piece side of the electric wire clamping part (10). An electric wire receiving part (2) which is attached to the overhead electric wire (100) is provided on the fixed clamping piece side. A guide rail (6) is disposed on the edge (4b) of the cut-in plate (4) so that the end on the insertion side is close to the wire receiving section (2) and is inclined toward the overhead wire (100). A width-enlarging member (8) for enlarging the slit of the shield pipe is provided at a corner (4a) formed between one end of the guide rail (6) and the electric wire receiving part (2) to form an acute angle. A support handle (16) is provided on the movable clamping piece (14) side of the wire clamping section (10) so as to extend toward one end of the guide rail (6) substantially parallel to the wire receiving section (2).
Description
Technical Field
The present invention relates to a simple shield pipe inserter for pulling on or pulling out a shield pipe covering an electric wire installed on a utility pole or the like, which does not include a driving device.
Background
In order to protect the overhead electric wire from damage due to contact with trees and the like, a protective pipe is used. In addition, when work is performed near the overhead wire, a protective pipe is also used to prevent a worker or work equipment from touching the wire.
FIG. 6 is a perspective view of the connected shielding tube 101.
The main body 102 constituting the protection tube 101 shown in fig. 6, the female fitting 103 formed on one end side of the main body 102, and the male fitting 104 formed on the other end side are formed using an elastic and flexible insulating material. These have an inner diameter as shown by the imaginary line, which accommodates the overhead wire 100 inside, and a slit-shaped opening 107 is formed linearly in the longitudinal direction above the main body 102. With such a material and shape, the overhead wire 100 can be covered by opening the opening 107 to accommodate the overhead wire 100 inside and closing the opening 107 by the restoring force due to the elasticity of the shield pipe 101. A pair of fin portions 109 extending in parallel to the diameter-expanded side of the cylinder are formed from opposite end edges forming the opening 107.
As shown in fig. 6, a male fitting portion 104 is formed at one end of the shield tube 101 in the longitudinal direction, and a female fitting portion 103 is formed at the other end, and the female fitting portion 103 is connectable to another shield tube 101 having the male fitting portion 104. The connected protective pipes 101 are set to have a predetermined length, and a plurality of the connected protective pipes are connected by the male fitting portions 104 and the female fitting portions 103, so that the long overhead wire 100 can be covered.
Here, the outer diameter of the male fitting 104 is larger than the outer diameter of the body 102. In the female fitting portion 103, a receiving portion 106 is formed, and the receiving portion 106 can receive the male fitting portion 104 at the time of fitting and can internally couple the male fitting portion 104. Therefore, the outer diameter of the receiving portion 106 of the female fitting portion 103 is larger than the outer diameter of the male fitting portion 104.
In general, when the protective pipe 101 is attached to the overhead wire 100, the first protective pipe 101 is first fitted to the overhead wire 100, and then the second protective pipe 101 is fitted at its tip to the overhead wire 100, and the two protective pipes 101 are connected to each other by the female fitting part 103 and the male fitting part 104 in a state fitted to the overhead wire. By repeating the above-described operation, the plurality of protection pipes 101 are fitted to the overhead wire 100.
Next, an apparatus for fitting the shield pipe 101 to the overhead wire 100 will be described.
Fig. 7 is a front view of a conventional tube inserter 110. The pipe inserter 110 is fixed to the overhead wire 100 so as to be sandwiched between the wire pressing angle 111 at the upper end and the guide body 112. The shield tube 101 passing along the guide rod 113 extending from the guide body 112 passes between the guide body 112 and the drive tire 116. Next, the shield pipe 101 further advanced is expanded by the pipe expanding plate 115 at the opening 107 (see fig. 6), and then guided to the overhead wire 100.
Here, in order to reduce friction with the protection tube 101, rollers 127 are provided on the side and lower end sides of the guide main body 112. This allows the protective tube 101 to be smoothly fitted to the overhead wire 100 with a reduced sliding contact resistance without losing the force applied from the driving tire 116. Patent document 1 describes the tube inserter 110 of this type.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 8-182135
Disclosure of Invention
Technical problem to be solved by the invention
In such a tube inserter 110 as described above, a driving tire 116 and a device for driving the driving tire 116 are required, and the overall weight increases accordingly. In addition, the weight of the entire tube inserter 110 increases, and the time required for setting the drive system is also required, and therefore, the work efficiency is not high. Therefore, in order to achieve weight reduction, it is most effective to omit the structure of the drive system including the drive tire 116.
On the other hand, the guide rod 113 is inclined with respect to the gripped overhead wire 100, and therefore, when the shield pipe 101 is abutted against the overhead wire 100 along the guide rod 113, the shield pipe 101 receives a large reaction force from the overhead wire 100 side. Therefore, in the configuration in which the driving tire 116 is omitted, it is necessary to perform work while pressing the protection pipe 101 against the overhead wire 100 side so that the protection pipe 101 does not fall off the pipe expanding plate 115.
Accordingly, an object of the present invention is to provide a shield tube inserter that is lightweight and compact and can prevent the shield tube from coming off during insertion.
Technical scheme for solving technical problem
In order to achieve the above object, the present invention provides a simple shield pipe inserter for inserting a shield pipe having a slit formed therein from an oblique direction with respect to an overhead wire while expanding a part of the slit, the simple shield pipe inserter comprising: an electric wire receiving part which is attached to the overhead electric wire; a cutting plate vertically provided on the electric wire receiving portion and cut into the slit; a guide rail provided at an edge of the cutting plate so as to form an acute-angled corner between one end side and the electric wire receiving portion, the guide rail being guided by sliding contact with an inner wall of the shield pipe; and a width expanding member provided at the corner portion of the cut-in plate, the width expanding member being formed so as to gradually increase in thickness toward the one end side, and having a step formed so as to cross between the guide rail and the electric wire receiving portion, the step extending in a direction of a steeper gradient than the guide rail.
In addition, the simple protective tube inserter of the present invention is characterized by comprising, in addition to the above-described structure: an electric wire holding portion that holds the overhead electric wire from two directions by a fixed holding piece and a movable holding piece, the fixed holding piece being integrally provided with the cut-in plate; and a support handle extending from the movable clamping piece of the wire clamping portion to the one end side and supporting the entire wire clamping portion.
In addition, in the simple catheter inserter according to the present invention, in addition to the above-described configuration, the width-enlarged member is formed such that an area of the edge forming the step on the one end side is formed at a gentler angle than the cut-in plate.
Effects of the invention
As described above, according to the present invention, since the step extending in the direction of the steeper gradient than the guide rail is formed in the width-enlarging member provided at the corner portion of the cut-in plate between the guide rail and the electric wire receiving portion, the shield pipe which is brought into sliding contact with the width-enlarging member while expanding the slit is guided toward the overhead electric wire side along the step. Therefore, the protective tube can be pushed to one side of the overhead wire by taking the layer difference as a vertical footpoint, and the protective tube can be prevented from floating by resisting the back push when the front end abuts against the overhead wire.
Further, according to the present invention, in addition to the above-described effects, since the support handle is provided on the side of the movable clamping piece located on the opposite side of the fixed clamping piece on which the cutting-in plate is integrally provided, across the overhead wire, in the wire clamping portion, it is possible to stabilize the protective tube inserter that swings due to the weight of the protective tube passing through the position away from the overhead wire. Further, since the support handle is extended toward the extending direction of the installed overhead wire, that is, one end side of the guide rail, the support handle can maintain a substantially parallel relationship with the overhead wire, and therefore, the support handle can be stably gripped at any angle without changing hands or changing posture greatly.
Further, according to the present invention, in addition to the above-described effects, one end side of the guide rail, that is, the insertion side of the protection tube, among the sides formed by the level difference on the width-enlarging member is formed at a gentler angle than the cut-in plate. Thus, the expanded shield pipe can be smoothly separated from the width-enlarging member without being caught by the step, and can be moved to the overhead wire side.
Drawings
Fig. 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 state in which a part of the shield tube inserter of fig. 1 (a width-enlarging member described later) is disassembled.
Fig. 3 is a view showing one side of the width enlarging element, in which (a) is a front view, (b) is a plan view, (c) is a bottom view, and (d) is an enlarged right side view.
Fig. 4 is a view showing a state of use of the shield tube inserter, in which (a) is a view showing a state in which the tip of the shield tube is positioned on the incision plate, and (b) is a view showing a state in which the tip of the shield tube is positioned on the width-enlarging member.
Fig. 5 is a diagram comparing states of the guard pipe passing through the width-enlarging member, in which (a) is a diagram showing a state where the tip end of the guard pipe passes through and (b) is a diagram showing a state where the intermediate portion of the guard pipe passes through.
Fig. 6 is a perspective view showing a conventional shield tube.
Fig. 7 is a front view showing a conventional tube inserter.
Detailed Description
The following describes the protective tubing inserter of the present invention with reference to the drawings.
Fig. 1 is an overall perspective view of the protective tube inserter 1 of the present embodiment as viewed from the front side. Fig. 2 is an overall perspective view showing a state in which a part of the shield tube inserter 1 of fig. 1 (a width expansion piece 8 described later) is disassembled. Here, the direction in which the protection tube is inserted is referred to as the insertion side. The guard tube 101 of fig. 6 is appropriately referred to as a guard tube appearing in the description, and the structure shown in fig. 6 in which the fin 109 is formed in the slit 107 will be described as an example.
The shield tube inserter 1 has a wire holding portion 10 that holds the overhead wire 100 from two directions. The wire clamping portion 10 has a wire receiving metal fitting 2 as a fixed clamping piece on the upper side and a movable clamping piece 14 on the lower side so as to face the wire receiving metal fitting 2. The wire receiving metal fitting 2 is formed with a groove below so as to be able to abut along the outer surface of the overhead wire 100.
A substantially triangular plate-shaped cut-in plate 4 stands on the wire receiving metal fitting 2. The cutting plate 4 is provided to cut into the slit 107 of the protection tube 101 to correct the twist (see fig. 6).
A guide rail 6 is provided along the edge 4b of the upper end of the cutting plate 4. The guide rail 6 is provided to enter the protection tube 101 together with the edge 4b of the upper end of the cut-in plate 4, and to guide the protection tube 101 from the inside. In the structure of the present embodiment, a resin material having a small friction coefficient is used for the guide rail 6.
A width-enlarging member 8 is provided at an acute-angled corner 4a formed between one end of the guide rail 6 and the wire-receiving metal fitting 2. The width enlarging members 8 are not shown in fig. 1, but are provided on both sides of the cut-in plate 4. The width enlarging member 8 is attached to be detachable with respect to the cut-in plate 4. The state of detachment from the incision plate 4 is shown in the exploded view of fig. 2. Can be easily removed by two screws.
As is apparent from fig. 1, the wire receiving metal fitting 2 is formed so that the width thereof increases in the vicinity of the width enlarging member 8. Formed in the above manner, therefore, when the protective tube 101 is transferred to the overhead wire 100 side by sliding on the guide rail 6, the sheath of the overhead wire 100 can be prevented from being damaged by the protective tube 101.
The width of the width enlarging member 8 is defined as a size in which the shield pipe 101 can be smoothly transferred toward the overhead wire 100. Here, the dimension is set to be larger than the width of the guide rail 6 and slightly smaller than the width of the wire-receiving metal fitting 2. Further, a step 8e (described later using fig. 3) is formed on a side surface of the width enlarging member 8, and the step 8e is inclined in the same direction as the guide rail 6.
Next, the shape of the width enlarging member 8 will be described in detail.
Fig. 3 is a view showing one width-enlarging member 8 of two parts, in which (a) is a front view, (b) is a top view, (c) is a bottom view, and (d) is a right side view. The right view of (d) is enlarged for convenience of explanation. In addition, the positional relationship is clearly shown by hatching the surface indicated by the level difference 8e described above. The insertion side of the protection tube 101 is the left side of the paper.
First, referring to the front view of fig. 3 (a), four faces are shown in the width-enlarging member 8. Of these surfaces, the surface located on the rightmost side of the paper surface is a surface formed by the scooped portion 8a that the shield pipe 101 conveyed on the guide rail 6 (see fig. 1) first climbs up in order to be inserted into the overhead wire 101. The slit 107 on the opening side of the shield pipe 101 fed from the head is lifted and expanded by the lift portion 8 a.
The surface continuous with the insertion side of the rising portion 8a is a surface formed by the first gradually varying portion 8 b.
When viewed with reference to the cutting plate 4 (see fig. 1), the first gradually-varying portion 8b is formed at a gentler inclination than the lift portion 8 a. The slit 107 expanded by the scooping portion 8a gradually expands while climbing the first gradually-changing portion 8b as the protection tube 101 moves toward the insertion side.
The surface displayed above the first gradation portion 8b is the side surface of the second gradation portion 8 c. The second gradually varying portion 8c is formed to have a slightly larger inclination than the first gradually varying portion 8 b. Thereby, a step 8e is formed between the both. The magnitude of the above-described inclination angle is shown in (b) of fig. 3. Here, the inclined surface of the first gradually-varying portion 8b is indicated by a broken line. In this way, the level difference 8e formed by the difference in the magnitude of the inclination angle is indicated by hatching in the bottom view of fig. 3 (c). Similarly, in fig. 3 (d), a surface on which the step 8e is formed is also hatched.
Finally, the surface displayed on the left side of the second gradually varying portion 8c is the outer surface of the width defining portion 8d defining the expanded width of the width expander 8. In the width enlarging tool 8, the width determining portion 8d is most protruded in the width direction. In the configuration of the present embodiment, the outer surface of the width determining section 8d is formed substantially parallel to the cutting plate 4.
From this point on, the operation in the use state will be explained.
Fig. 4 shows a state of use of the protective tube inserter 1, in which (a) shows a state in which the tip of the protective tube 101 is positioned on the incision plate 4, and (b) shows a state in which the tip of the protective tube 101 is positioned on the width-enlarging member 8.
Since the slit 107 of the shield tube 101 made of a resin material is closed in a state where no external force is applied, the slit is fed while sliding in contact with the cut surface until it reaches the width-enlarging member 8. Since the guide rail 6 is formed slightly larger than the closed slit 107, it does not come off even by a rough operation and can reach the width enlarging tool 8.
When the tip of the protection pipe 101 reaches the width-enlarging member 8 as shown in fig. 4 (b), the opening side of the slit 107 first climbs the raising portion 8a and moves to the first gradually-changing portion 8b as described above. Here, returning to fig. 3 (a), the ridge formed between the pick-up portion 8a and the first gradually-changing portion 8b is inclined to the same side as the guide rail 6 and is formed at a steeper gradient than the guide rail 6. Thus, when moving from the pick-up portion 8a to the first gradually-changing portion 8b, the slit 107 of the opening of the shield pipe 101 is guided along the ridge line toward the overhead wire 100. In this way, the guard pipe 101 fed so as not to be detached from at least the guide rail 6 is positioned toward the overhead wire 100 by the ridge line between the raised portion 8a and the first gradually-changing portion 8b being corrected in the first stage regardless of the height.
Next, when the slit 107 of the protection pipe 101 passes over the first gradually varying portion 8b, since the step 8e is formed between the first gradually varying portion 108b and the second gradually varying portion 8c as described above, the end portion of the slit 107 abuts against the step 8 e. The abutted slit 107 is guided along the edge formed at the step 8 e. Here, regarding the above-described edge, the edge between the first gradation portion 8b and the second gradation portion 8c is referred to as a first edge 8f, and the edge between the width regulation portion 8d and the first gradation portion 8b is referred to as a second edge 8 g.
That is, the protection pipe 101 moved from the pick-up portion 8a first moves on the first gradation portion 8b along the first edge 8 f. The first edge 8f is inclined in the same direction as the guide rail 6, and extends in a direction having a steeper gradient than the guide rail 6, similarly to the ridge line. However, since the slope is smaller than the ridge line, the overhead wire 100 is smoothly guided.
In a stage where the protection tube 101 is in sliding contact on the first gradually varying portion 8b, a part of the fin portion 109 of the protection tube 101 starts to hang on the upper side of the wire receiving metal piece 2. In a stage where the width of the slit 107 gradually expands as it goes from the raised portion 8a to the first gradually varying portion 8b, the fin portion 109 expands to a width sufficient to adhere to the outer diameter of the overhead wire 100. In this way, the expansion action on the overhead wire 100 side gradually becomes dominant, and therefore, the shield pipe 101 can be smoothly transferred from the width expanding piece 8 to the overhead wire 100 side.
In the configuration of the present embodiment, since the second edge 8g having a gentler inclination than the first edge 8f with respect to the cut-in plate 4 as described above is continuous with the insertion side of the first edge 8f, the fin 109 can be separated from the first edge 8f without catching the inner wall of the protection pipe 101 in a state of sufficiently climbing to the overhead wire 100 side. As described above, the edge formed on the width-enlarged piece 8 is formed so as to extend from the first edge 8f having a relatively large inclination toward the second edge 8g located on the insertion side and having a small inclination, whereby the slit 107 at the tip of the shield pipe 101 can smoothly pass over the overhead wire 100, which is a feature of the present invention.
Next, the operation of the front view will be described with reference to fig. 5.
Fig. 5 is a diagram for comparing states of the shield pipe 101 passing through the width-enlarging member 8, in which (a) shows a state where the tip of the shield pipe 101 passes through, and (b) shows a state where the middle portion of the shield pipe 101 passes through. Here, for convenience of explanation, the position of the protection tube 101 is indicated by a dotted line, and the position of the fin 109 is indicated by oblique lines.
Referring to fig. 5 (a), when the tip of the shield pipe 101 is inserted, the shield pipe 101 is linearly pushed out along the guide rail 6 to a position where the edge of the opening 107 at the tip abuts against the overhead wire 100. Therefore, the shield pipe 101 pushed out and brought into contact with the wire receiving metal fitting 2 receives a force in a direction away from the overhead wire 100 due to a reaction force from the wire receiving metal fitting 2. In this way, in a stage where the overhead wire 100 is not sufficiently transferred, the shield pipe 101 is easily detached from the guide rail 6 by pushing back from the wire receiving metal fitting 2 (or the overhead wire 100), which has been a conventional technical problem. However, in the configuration of the present embodiment, as described above, the pressing action of the first edge 8f toward the overhead wire 100 side works until the fin 109 is sufficiently caught on the overhead wire 100 side, in other words, until the fin 109 intersects with the overhead wire 100, and therefore, the protective tube 101 can be prevented from falling off.
Next, referring to fig. 5 (b), when the front end of the shield pipe 101 is fitted over the overhead wire 100 and the intermediate position of the shield pipe 101 passes near the width-enlarging member 8, the shield pipe slightly bends and follows the guide rail 6, but floats up at the intersection position between the guide rail 6 and the wire-receiving metal fitting 2. However, in the above stage, the shield pipe 101 has already taken the overhead electric wire 100 in at the insertion side, and therefore, the shield pipe 101 does not fall off.
Here, the states of (a) and (b) of fig. 5 are compared with respect to the positional relationship between the fin 109 and the second edge 8 g. In fig. 5 (a), the upper end side of the fin 109, that is, the position of the slit 107 is shifted to the second edge 8g away from the first edge 8 f. That is, the tip of the shield pipe 101 is gradually pushed up from the wire-receiving metal fitting 2 (the stage where the maximum resistance is increased), and the stage where a force sufficient to suppress the floating-up is obtained.
In contrast, in fig. 5 (b), the shield pipe 101 slightly floats up, but a force to close the slit 107 that has been opened by the restoring force is applied to the portion that has been shifted to the overhead wire 100 side. That is, since the floating-up can be suppressed by the restoring force, the friction between the width-enlarging member 8 and the protection pipe 101 becomes a problem in the above-described stage. However, as described above, such a hook as to rub against the first edge 8f hardly occurs between the protective tube 101 and the second edge 8g where the fin 109 overlaps. Therefore, once the overhead wire 100 is pulled over by the protection tube 101, the friction between the protection tube 101 and the first edge 8f is drastically reduced, and therefore, the protection tube 101 can be sent out with almost no resistance.
As described above, according to the shield pipe inserter 1 of the present embodiment, it is possible to prevent the shield pipe 101 from being damaged, prevent the shield pipe from floating up due to abutting against the overhead wire 100, and effectively suppress hooking and smoothly feed the shield pipe 101.
In this way, since the guide rail 6 can be disposed above the overhead wire 100 and the shield pipe 101 can be smoothly put on, it is not necessary to dispose guide rollers or the like opposite to the guide rail 6 as in most of the conventional configurations in which the guide rail 6 is disposed below, and the entire structure can be simply and lightweight.
Further, even when the entire shield pipe inserter 1 of the present embodiment is used by being turned upside down so that the guide rail 6 is positioned below the overhead wire 100, since the first edge 8f and the second edge 8g (mainly the first edge 8f) act to lift the shield pipe 101 toward the overhead wire 100 side, a force acts, and therefore, the work can be safely performed without dropping the shield pipe 101.
However, when the work is performed in a state where the guide rail 6 is disposed above the overhead wire 100, the weight of the protection pipe 101 is applied to the guide rail 6.
On the other hand, since the shield tube inserter 1 is fixed to the overhead wire 100 by the wire holding portion 10, one side (the other end side opposite to the one end on the side of the corner portion 4a) of the guide rail 6, which is far from the overhead wire 100, is likely to become unstable.
However, in the configuration of the present embodiment, since the support handle 16 (see fig. 1) is provided on the movable clamping piece 14 side of the wire clamping portion 10, the vibration of the shield pipe 101 on the guide rail 6 side can be effectively suppressed.
Further, since the extending direction of the support handle 16 is arranged in the direction along the extending direction of the overhead wire 100, the parallel posture of the shield tube inserter 1 with respect to the overhead wire 100 is maintained while suppressing the rotation of the shield tube inserter 1 about the overhead wire 100. This prevents the wrist gripping the support handle 16 from being twisted unnaturally.
In addition, the above-described structure is an embodiment of the present invention, and includes the following modifications.
In the above embodiment, the edge formed on the side surface of the width-enlarging member 8 is exemplified as a structure in which the second edge 8g having a gentler gradient than the first edge 8f is continuously provided on the insertion side of the first edge 8f having a relatively steeper gradient with respect to the cut-in plate 4. However, the edge may be formed linearly.
In the above embodiment, the structure in which the raised portion 8a is formed continuously with the first gradually-varying portion 8b of the width-enlarging member 8 is exemplified. However, the first gradually-changing portion 8b may be directly connected to the incision plate 4. Further, by forming the pick-up portion 8a, the inclination of the first gradually-changing portion 8b can be set gentle.
In the above embodiment, the support handle 16 is disposed to extend in a direction substantially parallel to the overhead wire 100. However, if the support handle 16 is configured to extend toward the insertion side, which is one end side of the guide rail 6, the support handle may not be completely parallel to the overhead wire 100.
In the above embodiment, the wire-receiving metal fitting 2 is exemplified as a fixed clamping piece provided in the wire clamping portion 10 so as to face the movable clamping piece 14. However, the electric wire receiving metal fitting 2 provided for protecting the overhead electric wire 100 may be provided separately from the fixed clamping piece for fixing the overhead electric wire 100.
Industrial applicability of the invention
The shield pipe inserter 1 of the present invention can smoothly slide the shield pipe 101 with respect to the overhead wire 100, and is therefore useful not only for the purpose of pulling the shield pipe 101 but also for the operation of pulling out the shield pipe 101.
(description of symbols)
1, a protective tube inserter;
2 electric wire receiving metal member (electric wire receiving part, fixed clamping piece);
4, cutting into a plate;
4a corner portion;
4b an edge;
6, a guide rail;
8a width enlarging member;
8a pick-up part;
8b a first gradually changing portion;
8c a second transition portion;
8d width stipulating part;
8e layer difference;
8f a first edge;
8g of a second edge;
10 a wire holding portion;
14 a movable clamping part;
16 supporting the handle;
100 overhead electrical wires;
101 a protective tube;
102 a main body portion;
103 a female fitting portion;
104 a male fitting portion;
106 a receiving part;
107 opening portions (slits);
109 a fin portion;
a 110-tube inserter;
111 angle steel;
112 a guide body;
113 a guide rod;
115 a tube expansion plate;
116 driving the tire;
127 rollers.
Claims (3)
1. A simple shield pipe insertion device, which inserts a shield pipe formed with a slit from an oblique direction with respect to an overhead wire while expanding a part of the slit,
it is characterized by comprising:
an electric wire receiving part which is attached to the overhead electric wire;
a cutting plate vertically provided on the electric wire receiving portion and cut into the slit;
a guide rail provided at an edge of the cutting plate so as to form an acute-angled corner between one end side and the electric wire receiving portion, the guide rail being guided by sliding contact with an inner wall of the shield pipe; and
a width expanding piece provided at the corner portion of the cut-in plate, the width expanding piece being formed so as to gradually increase in thickness toward the one end side in a range smaller than the width of the electric wire receiving portion, and a step extending in a direction along a steeper gradient than the guide rail being formed so as to cross between the guide rail and the electric wire receiving portion.
2. The compact cannula guard inserter of claim 1 comprising:
an electric wire holding portion that holds the overhead electric wire from two directions by a fixed holding piece and a movable holding piece, the fixed holding piece being integrally provided with the cut-in plate; and
and a support handle extending from the movable clamping piece of the wire clamping portion to the one end side and supporting the entire wire clamping portion.
3. The plain guard tube inserter of claim 1 or 2,
an area of the width-enlarging member on the one end side, of the edge forming the level difference, is formed at a gentle angle with respect to the cut-in plate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018097089A JP6970411B2 (en) | 2018-05-21 | 2018-05-21 | Simple protective tube inserter |
| JP2018-097089 | 2018-05-21 | ||
| PCT/JP2019/019525 WO2019225478A1 (en) | 2018-05-21 | 2019-05-16 | Simple protective tube inserter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112154583A CN112154583A (en) | 2020-12-29 |
| CN112154583B true CN112154583B (en) | 2022-06-03 |
Family
ID=68616672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980034060.6A Active CN112154583B (en) | 2018-05-21 | 2019-05-16 | Simple protective tube inserter |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6970411B2 (en) |
| KR (1) | KR102555943B1 (en) |
| CN (1) | CN112154583B (en) |
| TW (1) | TWI809105B (en) |
| WO (1) | WO2019225478A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2022239532A1 (en) | 2021-05-11 | 2022-11-17 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08182135A (en) | 1994-12-26 | 1996-07-12 | Nishi Nippon Densen Kk | Tube fitting device |
| JP4150457B2 (en) * | 1998-12-25 | 2008-09-17 | 米沢電線株式会社 | Protective tube insertion machine |
| JP2002199528A (en) * | 2000-12-22 | 2002-07-12 | Kandenko Co Ltd | Protective pipe attaching/detaching device |
| CN2520601Y (en) * | 2001-11-12 | 2002-11-13 | 霍晓林 | Warning protection sleeve of overhead cable |
| JP4355595B2 (en) * | 2004-03-12 | 2009-11-04 | 中国電力株式会社 | Protective tube desorption device |
| DE102006062545B4 (en) * | 2006-12-29 | 2008-09-18 | Flexa Gmbh & Co. Produktion Und Vertrieb Kg | Auxiliary tool, set with an auxiliary tool, a protective tube and a closure element and arrangement with a supply of a protective tube and an auxiliary tool |
| JP5033846B2 (en) * | 2009-07-23 | 2012-09-26 | 西日本電信電話株式会社 | Mounting aid, mounting method, and detaching method |
| JP5738717B2 (en) * | 2011-08-30 | 2015-06-24 | 中国電力株式会社 | Protective tube insertion machine |
| JP5997628B2 (en) * | 2013-02-18 | 2016-09-28 | 株式会社永木精機 | Protective tube inserter |
| JP2016111737A (en) * | 2014-12-02 | 2016-06-20 | 住友電装株式会社 | Corrugated tube mounting jig |
| JP6468834B2 (en) * | 2014-12-19 | 2019-02-13 | 株式会社永木精機 | Protective tube inserter |
| JP6710010B2 (en) * | 2016-07-11 | 2020-06-17 | 西日本電線株式会社 | Protective tube mounting machine |
-
2018
- 2018-05-21 JP JP2018097089A patent/JP6970411B2/en active Active
-
2019
- 2019-05-16 WO PCT/JP2019/019525 patent/WO2019225478A1/en active Application Filing
- 2019-05-16 CN CN201980034060.6A patent/CN112154583B/en active Active
- 2019-05-16 KR KR1020207033369A patent/KR102555943B1/en active IP Right Grant
- 2019-05-20 TW TW108117351A patent/TWI809105B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019205232A (en) | 2019-11-28 |
| JP6970411B2 (en) | 2021-11-24 |
| KR20210003837A (en) | 2021-01-12 |
| CN112154583A (en) | 2020-12-29 |
| TW202013844A (en) | 2020-04-01 |
| WO2019225478A1 (en) | 2019-11-28 |
| TWI809105B (en) | 2023-07-21 |
| KR102555943B1 (en) | 2023-07-13 |
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