JP2013113686A - Plug pull up tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily pull up a bypass plug which is installed between a watt-hour meter and a power load facility, and inserted into an uninterruptible terminal which stops power supply and releases the stop.SOLUTION: A plug pull up tool includes: a pull up tool body 2 which has a pair of leg parts 5 with an engaging part 6 to engage into an engaged part 357 of a bypass plug 350; an approximately U-shaped slide member 20 which has a pair of slide pieces 21 slidably engaged into the respective leg parts in their longitudinal directions, respectively. The slide direction length of the slide pieces is set as larger than the entire length of the pull up tool body. A base piece 23 is at a position facing the outside surface of a base end connection piece 8 when the slide member is slidably assembled to the pull up tool body.

Description

  The present invention relates to a plug pulling tool, and more particularly to a plug pulling tool for pulling out a plug connected to an integrating wattmeter installed on the power consumer side and inserted into an uninterruptible terminal for stopping and releasing power supply.

When an electric power company collects electricity charges from electricity consumers, it calculates the monthly usage based on the measured value of the electricity meter installed in the customer's residence, etc., and the customer automatically debits Or, settle the fee by transfer.
When the power consumer is in a situation where the usage fee for the power consumption cannot be paid due to economic circumstances or the like, the power supplier may stop supplying power to the power consumer. In that case, an uninterruptible terminal (see, for example, Patent Document 1) is installed on an integrating wattmeter of a power consumer that will be required to stop power supply in the near future. When a fee is not paid for the consumed power amount, an operation of removing a bypass plug inserted into an uninterruptible terminal that is attached in advance is required.

FIG. 4 is an explanatory view showing an attachment state of the uninterruptible terminal. The voltage appropriately stepped down by the pole transformer 100 is input to the integrating wattmeter 210 via the lead-in wire 110 and the power supply side wires 112, 113, 114, and the power consuming device via the load side wires 212, 213, 214. 720 is applied. The amount of power consumed by the power consuming device 220 is measured by the integrating wattmeter 210, a power usage fee is charged according to the measured power consumption, and the power consumer pays the usage fee.
As described above, if the power consumer is unable to pay the usage fee due to economic circumstances, the power supplier stops supplying power to the power consumer. Then, the uninterruptible terminal 300 is electrically installed between the integrating wattmeter 210 and the power consuming device 220. Specifically, as shown in FIG. 4, uninterruptible terminal 300 cuts load side electric wires 212 and 214 and is inserted therebetween. The load-side electric wire 213 remains connected to the integrating wattmeter 210 and the power consuming device 220. Here, the lines connecting the integrating wattmeter 210 and the uninterruptible terminal 300 are denoted as lead wires 212a and 214a.

FIG. 5 is a schematic cross-sectional view (a) of the uninterruptible terminal, a front view (b) of a bypass plug used therefor, and a side view (c). Hereinafter, the uninterruptible terminal 300 will be described, but in order to avoid duplication, only the lead wire 212a and the load-side electric wire 212 will be described, and the lead wire 214a and the load electric wire 214 will be omitted.
The uninterruptible terminal 300 includes a synthetic resin case 311, a synthetic resin cover 312 that closes the opening of the case 311, and two conductive blocks 313 a and 314 a that are insulated and arranged in the case 311. ing. A lead wire 212a is fixed to one conductive block 313a by a set screw 315a.
In the conductive blocks 313a and 314a, plug terminal insertion holes 322a and 323a into which one and the other terminals 351 and 352 of the bypass plug 350 can be inserted are provided in parallel, respectively. Cases 311 corresponding to the plug terminal insertion holes 322a and 323a communicate with the plug terminal insertion holes 322a and 323a, respectively, and plug fitting holes 324a and 315a into which the terminals 351 and 352 of the bypass plug 350 can be inserted. 325a is provided.
The uninterruptible terminal 300 is provided with a lead-in wire insertion hole 326a in the conductive block 314a so that the load-side electric wire 212 can be inserted. The load-side electric wire 212 having a tip inserted into the lead-in wire insertion hole 326a The conductive block 314 a is configured to be held by a set screw 327.

As shown in FIG. 5B, the bypass plug 350 includes a conductive wire bent in a substantially U-shape, and an insulating main body 355 in which portions other than the terminals 351 and 352 of the conductive wire are molded with a synthetic resin. It has. The terminals 351 and 352 extend from one side surface of the insulating main body 355 so that they are substantially parallel. A pair of recesses 357 is formed on the side of the insulating main body 355.
When the operator inserts both terminals 351 and 352 of the bypass plug 350 into the plug terminal insertion holes 322a and 323a of the conductive blocks 313a and 314a through the plug fitting holes 324a and 325a, both terminals 351 and 352 are respectively The plug terminal insertion holes 322a and 323a are electrically connected and are difficult to remove. Accordingly, the lead wire 212a and the load side electric wire 212 are electrically connected via the set screw 315a, the conductive block 313a, the terminal 351, the terminal 352, the conductive block 314a, and the set screw 327. Similarly, the same configuration is adopted for the lead wire 214a and the load-side electric wire 214, and description thereof is omitted.

FIG. 6 is an explanatory view showing the work of the operator pulling out the bypass plug from the uninterruptible terminal. Since the integrating wattmeter 210 and the uninterruptible terminal 300 are installed at a relatively high position of the house 200, for example, in a range of 1.8 m to 2 m from the floor surface, the worker is on a ladder or a stepladder. The operation of extracting the bypass plug 350 inserted into the uninterruptible terminal 300 is performed.
For example, the operator holds the insulating main body 355 of the bypass plug 350 with the thumb H1 and the index finger H2 of the right hand H, and holds the uninterruptible terminal 300 with the left hand h. And in the state which hold | maintained the insulation main-body part 355 and the uninterruptible terminal 300, force is applied to both arms in order to move the right hand H and the left hand h in opposite directions. In this way, the terminals 351 and 352 are gradually pulled out from the plug terminal insertion holes 322a and 323a, respectively, and finally come out completely from the plug terminal insertion holes 322a and 323.
By extracting the bypass plug 350, the lead wire 212a and the load-side electric wire 212 and the lead wire 214a and the load-side electric wire 214 are electrically disconnected, so that the power consumer can use the power consuming device 220. Disappear.

Utility Model Registration No. 3127715 JP 2009-44919 A

The uninterruptible terminal 300 and the bypass plug 350 are maintained in a floating state in the space near the integrated wattmeter 210 and higher than the height of the operator by lead wires 212a and 214a connected to the integrated wattmeter 210. In addition, since both terminals 351 and 352 are inserted in the plug terminal insertion holes 322a and 323a so as to be difficult to remove, it is not easy for the operator to pull out the bypass plug 350 inserted into the uninterruptible terminal 300. Therefore, the worker is forced to pull out the bypass plug 350 inserted into the uninterruptible terminal 300 with a strong clamping force while riding on a ladder or a stepladder, and sometimes the worker has to pull out the bypass plug 350 with pliers. Sometimes it doesn't happen.
Further, when both the terminals 351 and 352 are completely removed from the plug terminal insertion holes 322a and 323a, the frictional force generated between the both terminals 351 and 352 and the plug terminal insertion holes 322a and 323a suddenly disappears. A reaction is exerted on both hands H and h in a direction away from each other. Depending on the state of the worker, for example, the left hand h may hit the integrating wattmeter 210 and the right hand H may hit the worker himself. If such a situation occurs, the integrated wattmeter 210 and the bypass plug 350 may be damaged, and the operator may lose his / her posture and fall from the stepladder or ladder to be injured.

FIG. 7 is a view showing a state in which a conventional drawing tool (torii type) for pulling out the bypass plug is attached to the bypass plug. The extraction tool 400 has convex portions (engaging portions) 402 and 402 that engage with concave portions (engaged portions) 357 and 357 formed on two opposing outer surfaces of the bypass plug 350 on the inner side surfaces, respectively. A pair of leg portions 401, 401, a base end connecting piece 405 for connecting and integrating the base end portions of the pair of leg portions 401, 401, and a pair of leg portions closer to the base end than the recesses 357, 357. An intermediate connecting piece 410 for connecting and integrating the inner side surfaces is provided.
When the extraction tool 400 is used, the legs of the extraction tool are fitted so that the protrusions 402 and 402 are fitted to the recesses 357 and 357 of the bypass plug 350 that is attached to the uninterruptible terminal 300 as shown in the figure. 401 and 401 are assembled. In this state, while grasping the uninterruptible terminal 300 with one hand, the finger of the other hand is inserted into the space S between the base end connecting piece 405 and the intermediate connecting piece 410 to be connected to the base end connecting piece 405. Pull it out in the direction of the arrow while hooking your finger.

However, even in the work of pulling out the bypass plug using the pulling tool 400, it takes a considerable amount of force for the operator to pull out the bypass plug 350, and it can be easily pulled out only with the force of the finger inserted into the space S. The reality is that you can't. In addition, the power meter and bypass plug are often damaged or the operator is injured due to the momentum at the time of pulling out.
Further, the extraction tool 400 can be pulled out by using a tool such as pliers, but this work needs to be performed with both hands, and the workability is poor. Further, a tool such as pliers is not a dedicated tool for pulling out, and there is no clue to be pinched by the pliers on the side of the pulling tool, so that it is not easy to pull out a slippery resin pulling tool 400 with pliers.

Patent Document 2 (Japanese Unexamined Patent Application Publication No. 2009-44919) discloses a bypass plug extraction tool, but there is a risk that the structure is complicated and the cost is increased. Moreover, it is not premised on using the existing drawing tool shown in FIG. 7, and does not eliminate the difficulty of drawing with the existing drawing tools that are frequently used.
The present invention has been made in view of the above problems, and its purpose is to install a bypass plug installed between an integrating wattmeter and a power load facility and inserted into an uninterruptible terminal for stopping and releasing power supply. Another object of the present invention is to provide a plug extraction tool that can be easily extracted by one hand without using a tool such as pliers.
Further, the present invention provides a plug extraction tool having a function of assisting the extraction operation by eliminating the difficulty of the extraction operation with the existing extraction tool shown in FIG.

In order to achieve the above object, a plug extracting tool according to claim 1 is installed between an integrating wattmeter and a power load facility, and extracts a bypass plug inserted into an uninterruptible terminal for stopping and releasing power supply. A pair of leg portions each provided with an engagement portion on an inner side surface for engaging with an engaged portion formed on each of two opposing outer surfaces of the bypass plug, and the pair of leg portions A pulling tool main body having a base end connecting piece for connecting and integrating the base end side and an intermediate connecting piece for connecting and integrating the inner side surfaces of the pair of leg portions closer to the base end portion than the engaging portion A pair of slide pieces slidably engaged with the respective leg portions of the extraction tool main body along the longitudinal direction thereof, and a base piece for connecting and integrating the base end portions of the slide pieces. A substantially U-shaped pulling auxiliary member The sliding direction length of the slide piece of the extraction auxiliary member is set to be larger than the total length of the extraction tool main body, and the base piece when the extraction auxiliary member is slidably assembled to the extraction tool main body Is in a position facing the outer surface of the base end connecting piece.
The difficulty of pulling out the bypass plug can be eliminated by using the pulling tool main body, and it can be easily pulled out by one-handed work.

According to a second aspect of the present invention, the drawing tool body has a slide guide hole having a distal end opening at the distal end of each leg and a proximal end opening on the outer surface of the proximal end connecting piece. Each slide piece of the pull-out auxiliary member formed is inserted into the slide guide hole from the base end opening and is slidably supported, and the front end of each slide piece can be projected to the outside from the tip opening. It is configured.
Since the slide piece of the extraction assisting member is slidably supported in the slide guide hole formed through the leg, the movement path and posture of the extraction assisting member at the time of extraction can be stabilized.
According to a third aspect of the present invention, each slide piece of the pull-out assisting member is provided with a slide guided portion that is slidably engaged with each leg portion, and each slide piece tip portion is connected to the leg tip end. It is configured to be able to protrude outward.
It is not necessary to process the extraction tool body at all, and the existing extraction tool body can be used as it is.

According to a fourth aspect of the present invention, the outer surface of each leg portion has a slide engagement portion formed along the longitudinal direction, and each slide piece of the extraction assisting member includes the extraction tool body. A slide engaged portion that is slidably engaged with each slide engaging portion is provided.
The degree of processing on the leg can be reduced.
The invention according to claim 5 is characterized in that one length of each slide piece of the pull-out auxiliary member is made equal or one slide piece is made shorter than the other.
It is possible to cope with a step on the uninterruptible terminal side.

According to the plug pulling tool of the present invention, the bypass plug can be removed by one-handed operation by applying a pulling auxiliary member to the existing pulling tool itself or by applying some deformation to the existing pulling tool. It can be pulled out.
With the existing extraction tool (extraction tool body) set to the bypass plug, the extraction auxiliary member is slidably inserted into the slide guide hole provided on the extraction tool body side, etc. Therefore, the plug can be pulled out by one-handed operation without requiring a strong force.

(A) thru | or (d) is a figure explaining the structure of the plug extraction tool which concerns on one Embodiment of this invention, and a plug extraction procedure. (A), (b) and (c) are the exploded perspective view, XX sectional drawing, and YY sectional drawing which show the structure of the plug extraction tool which concerns on other embodiment of this invention. (A) And (b) is a disassembled perspective view which shows the structure of the plug extraction tool which concerns on other embodiment of this invention, and ZZ sectional drawing. It is explanatory drawing which shows the attachment state of an uninterruptible terminal. (A) is a schematic sectional drawing of an uninterruptible terminal, (b) is a front view of a bypass plug, and (c) is a side view. It is explanatory drawing which shows the operation | work which an operator pulls out a bypass plug from an uninterruptible terminal. It is a figure which shows the state which attached the conventional extraction tool to the bypass plug.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The uninterruptible terminal and the bypass plug are assumed to be the same as those described with reference to FIGS. Therefore, each component in FIGS. 4 to 7 will be described using the same reference numerals.
FIG. 1A to FIG. 1D are diagrams for explaining the configuration of a plug extraction tool and a plug extraction procedure according to an embodiment of the present invention.
The plug extracting tool 1 of the present invention is installed between an integrating wattmeter and a power load facility, and is a means for extracting a bypass plug inserted into a plug terminal insertion hole of an uninterruptible terminal 300 for stopping and releasing power supply. It is. A plug mounting portion 321 having a plug terminal insertion hole projects from the upper surface of the uninterruptible terminal.
The plug extraction tool 1 includes an extraction tool main body 2 that directly engages the bypass plug 350, a slide member (extraction auxiliary member) 20 that is slidably engaged with the extraction tool main body 2 and assists manual extraction operation. , Is composed of.

The extraction tool main body 2 has convex portions (engaging portions) 6 and 6 that engage with concave portions (engaged portions) 357 and 357 formed on two opposed outer surfaces of the bypass plug 350 on the inner side surfaces, respectively. The pair of leg portions 5, 5, the base end connection piece 8 that connects and integrates the base end portions of the pair of leg portions 5, 5, and the pair of legs closer to the base end than the convex portions 6, 6 And an intermediate connecting piece 10 for connecting and integrating the inner surfaces of the parts 5 and 5.
The slide member (drawing auxiliary member) 20 includes a pair of slide pieces 21 and 21 that are slidably engaged with the leg portions 5 and 5 of the drawing tool main body along the longitudinal direction thereof, and a base of each slide piece. It is a substantially U-shaped member having a base piece 23 for connecting and integrating the end side.
The slide direction length (longitudinal direction length) L1 of the slide pieces 21 and 21 of the slide member 20 is set to be longer than the total length L2 of the extraction tool main body, and the base when the slide member 20 is slidably assembled to the extraction tool main body 2. The piece 23 is in an outer position facing the outer side surface (upper surface in the drawing) of the base end connecting piece 8.

There can be various configurations in which the slide pieces 21 and 21 of the slide member are slidably engaged with the legs 5 and 5 of the extraction tool body, respectively.
In the plug extraction tool 1 according to the embodiment of FIG. 1, the extraction tool main body 2 has distal end openings 11 a and 11 a at the distal ends of the leg portions 5 and 5, and a proximal end on the outer surface of the proximal end connecting piece. Slide guide holes 11 and 11 having openings 11b and 11b are formed through.
Each slide piece 21, 21 of the slide member 20 has its distal end portion inserted into the slide guide holes 11, 11 through the base end openings 11 b, 11 b, and is slidably supported. Each slide piece front end portion is configured to protrude outward (forward) from the openings 11a and 11a.

When pulling out the bypass plug 350 inserted into the uninterruptible terminal 300 using the plug pulling tool 1, the pulling tool body 2 shown in FIG. 1A is assembled to the bypass plug 350. If the projections 6 and 6 of the drawing tool body 2 are attached so as to fit into the recesses (engaged portions) 357 and 357 of the bypass plug, the assembly is completed.
In this state, as shown in (b), the distal ends of the slide pieces 21 and 21 of the slide member are inserted from the proximal end openings 11b and 11b of the slide guide holes 11 and 11, and the distal ends of the slide pieces are opened at the distal ends. It is set as the state which contacted the upper surface of the uninterruptible terminal 300 via 11a and 11a.
In addition, it is also possible to assemble the extraction tool main body to the bypass plug in a state in which each slide piece is inserted into the slide guide hole in advance.

Subsequently, as shown in (d), the operator's index finger or the like is inserted into the space S between the base end connecting piece 8 and the intermediate connecting piece 10 and a part of the palm is brought into contact with the outer surface of the base piece 23. In this state, the index finger is pulled upward (in the direction of pulling out the plug), and the outer surface of the base piece 23 is pushed toward the plug by the palm. In other words, force is applied so as to grasp the hand in the state of (d). Then, as shown in (c), since the tip of the slide member protrudes from the tip opening and comes into contact with the upper surface of the uninterruptible terminal, the extraction tool body 2 starts to rise while sliding along the slide pieces 21 and 21. Then, the bypass plug 350 held by the convex portions 6 and 6 is raised integrally. As the bypass plug rises, the plug terminals 351 and 352 begin to be pulled out from the plug terminal insertion hole, and finally are completely pulled out.
This pull-out operation can be performed with only one hand and with a small force (grip force), and it is not necessary to hold the uninterruptible terminal 300 with the other hand. This eliminates the need for the operator to pull out the bypass plug 350 with a considerable arm force in an unreasonable posture as in the prior art. For this reason, it is possible to avoid a situation in which peripheral equipment is damaged or an operator is injured by the momentum when the bypass plug is pulled out.

In addition, as shown with the broken line in FIG. 1, by providing the protrusion part 23a to the horizontal direction in the upper part of the slide member 20, ie, the upper part of each slide piece 21 and 21, a bypass plug is used like (c). When the slide member is detached from the extraction tool main body 2 after being pulled out, the projecting portion 23a can be used as a clue, and the removal work is facilitated.
In short, as long as the slide member is configured to slide each slide piece in a slide guide hole provided in the leg portion, other portions can be gripped and variously deformed so as to be easily operated. This applies to the other embodiments as well.

Next, FIGS. 2A, 2B, and 2C are an exploded perspective view, a cross-sectional view taken along the line XX, and a cross-sectional view taken along the line Y-Y showing the configuration of the plug extracting tool according to another embodiment of the present invention. is there. The same parts as those in the embodiment of FIG.
In this plug extraction tool 1, the extraction tool body 2 is not processed at all, but on the slide pieces 21 and 21 side of the slide member 20 with respect to the outer surfaces of the legs 5 and 5 of the extraction tool body. Slide guided portions 25, 25 that are slidably engaged are provided.
As shown in the figure, the slide guided portions 25 and 25 are formed in a U shape so that the shapes of the slide pieces 21 and 21 are in contact with and surround the outer three surfaces of the leg portions 5 and 5.
When pulling out the bypass plug 350 mounted on the uninterruptible terminal, the outer surfaces (three U-shaped surfaces) of the legs 5 and 5 of the extraction tool body 2 with the extraction tool body 2 set in the bypass plug in advance. Are assembled so that the slide guided portions 25, 25 having a U-shaped cross section are covered.

In this state, as shown in FIG. 1 (d), the finger of one hand is inserted into the space S and force is applied in the direction of pulling out the plug, and at the same time, the outer surface of the base piece 23 of the slide member is pushed toward the plug with the palm. Thus, the bypass plug can be pulled out with a small force with one hand.
The slide direction length (longitudinal direction length) L1 of the slide pieces 21 and 21 of the slide member 20 is set to be longer than the total length L2 of the extraction tool main body, and the base when the slide member 20 is slidably assembled to the extraction tool main body 2. The piece 23 is in an outer position facing the outer side surface (upper surface in the drawing) of the base end connecting piece 8. Since the length is set as described above, when the extraction tool main body is slid along the slide piece, the tip of each slide piece can be protruded outward (toward the tip) from the tip of each leg. That is, in the extraction operation as shown in FIG. 1C, the extraction tool body holding the bypass plug is separated from the uninterruptible terminal surface along the slide piece in a state where the tip of the slide piece is in contact with the uninterruptible terminal surface. It becomes possible to move in the direction.

Next, FIGS. 3A and 3B are an exploded perspective view and a ZZ cross-sectional view showing a configuration of a plug extracting tool according to another embodiment of the present invention. The same parts as those in the embodiment of FIG.
In the plug extraction tool 1, slide engaging portions 13 and 13 extending in the longitudinal direction are formed on the outer surfaces of the leg portions 5 and 5 of the extraction tool main body 2, while the slide pieces 21 and 21 of the slide member 20 are formed. Further, slide engaged portions 30, 30 that are slidably engaged with the slide engaging portions 13, 13 are provided.
The slide engaging portions 13 and 13 are grooves having a quadrangular cross section, and the slide engaged portions 30 and 30 are ridges having a quadrangular cross section that fit into the slide engaging portions 13 and 13 and slide in the longitudinal direction. It is. The slide engaging portions 13 and 13 may be protrusions and the slide engaged portions 30 and 30 may be grooves. Moreover, the cross-sectional shape of a groove | channel and a protrusion may be arbitrary shapes other than a rectangle.

When pulling out the bypass plug 350 attached to the uninterruptible terminal, the slide engagement portion 13 provided on the legs 5 and 5 of the extraction tool main body 2 with the extraction tool main body 2 set in the bypass plug in advance, 13, the slide member 20 is assembled so that the slide engagement portions 30, 30 provided on the slide pieces are fitted. In this state, as shown in FIG. 1 (d), the finger of one hand is inserted into the space S and force is applied in the direction of pulling out the plug, and at the same time, the outer surface of the base piece 23 of the slide member is pushed toward the plug with the palm. Thus, the bypass plug can be pulled out with a small force with one hand.
The slide direction length (longitudinal direction length) L1 of the slide pieces 21 and 21 of the slide member 20 is set to be longer than the total length L2 of the extraction tool main body, and the base when the slide member 20 is slidably assembled to the extraction tool main body 2. The piece 23 is in an outer position facing the outer side surface (upper surface in the drawing) of the base end connecting piece 8. Since the length is set as described above, when the extraction tool main body is slid along the slide piece, the tip of each slide piece can be protruded outward (toward the tip) from the tip of each leg. That is, in the extraction operation as shown in FIG. 1C, the extraction tool body holding the bypass plug is separated from the uninterruptible terminal surface along the slide piece in a state where the tip of the slide piece is in contact with the uninterruptible terminal surface. It becomes possible to move in the direction.

Note that the embodiment of FIG. 3 and the embodiment of FIG. 2 may be combined. That is, the slide engaged portions 30 and 30 shown in FIG. 3 project from the inner surfaces of the slide guided portions 25 and 25 shown in FIG. 2 and the slide engaging portions 13 and 13 are provided on the leg portions 5 and 5. It is good also as a provided structure.
2 and 3, the slide pieces 21 and 21 of the slide member 20 are positioned outside the leg portions 5 and 5 of the extraction tool body, unlike the embodiment shown in FIG. If there is an obstacle such as a protrusion in the vicinity of the upper surface of the uninterruptible terminal 300 with which the front end of the terminal contacts, it may be an obstacle when the front end of one of the slide pieces abuts. That is, if the lengths of the slide pieces 21 and 21 are equal as shown in the figure, and the height positions of the contact surfaces of the slide piece tips are different, the tips of the slide pieces are equally uninterrupted. Pulling out work while abutting against the terminal surface becomes difficult, which may hinder the work.
However, in this case, the length of the slide piece can be dealt with by changing it in advance according to the step (height difference) of the uninterruptible terminal surface. That is, when the uninterruptible terminal surfaces with which the tip portions of both slide pieces abut are different in height, the two slide pieces are configured to be shorter (longer) than the other by setting the tip portion of one slide piece to a different height. The drawing work can be performed while the tip of each piece is in contact with the uninterruptible terminal surface evenly.

As described above, according to the plug pulling tool of the present invention, by applying a slight deformation to the existing torii-shaped pulling tool, or by applying a slide member to the existing pulling tool itself, it is possible to perform by one-handed work. The bypass plug can be pulled out.
That is, a configuration in which a slide member slide piece is slidably inserted into a slide guide hole provided on the side of the extraction tool main body with an existing extraction tool (extraction tool main body) set in the bypass plug, etc. Therefore, the plug can be pulled out without requiring a strong force using the arm strength of both arms by the operation of only the gripping force with one hand.

DESCRIPTION OF SYMBOLS 1 ... Plug extraction tool, 2 ... Extraction tool main body, 5 ... Leg part, 6 ... Engagement part, 8 ... Base end connection piece, 10 ... Intermediate connection piece, 11 ... Slide guide hole, 11a ... Tip opening part, 11b ... Base end opening, 13 ... slide engagement part, 20 ... slide member (withdrawal auxiliary member), 21 ... slide piece, 23 ... base piece, 23a ... projection part, 25 ... slide guided part, 30 ... slid engagement 300, uninterruptible terminal, 321 ... plug mounting part, 350 ... bypass plug, 351, 352 ... plug terminal, 357 ... engaged part

Claims (5)

In the plug extraction tool for extracting the bypass plug that is installed between the integrating wattmeter and the power load equipment and that is inserted into the uninterruptible terminal for stopping and releasing the power supply,
A pair of leg portions each having an engaging portion engaging with an engaged portion formed on each of two opposing outer side surfaces of the bypass plug on the inner side surface, and connecting the base end side of the pair of leg portions A drawing tool body having a base end connecting piece to be integrated, and an intermediate connecting piece for connecting and integrating the inner side surfaces of the pair of leg portions closer to the base end than the engaging portion;
A pair of slide pieces slidably engaged with the leg portions of the extraction tool main body along the longitudinal direction thereof, and a base piece for connecting and integrating the base end portions of the slide pieces. A drawing auxiliary member,
The sliding direction length of each slide piece of the drawing auxiliary member is set to be larger than the total length of the drawing tool main body, and the base piece is slidable when the drawing auxiliary member is slidably assembled to the drawing tool main body. A plug pulling tool characterized by being at a position facing the outer surface of the end connecting piece. In the extraction tool body, a slide guide hole having a distal end opening at the distal end of each leg and a proximal end opening on the outer surface of the proximal end connecting piece is formed through,
Each slide piece of the pull-out auxiliary member is inserted into the slide guide hole from the base end opening and is slidably supported, and is configured to be able to project the slide piece tip from the tip opening to the outside. The plug extracting tool according to claim 1, wherein   Each slide piece of the pull-out auxiliary member is provided with a slide guided portion that is slidably engaged with each leg portion, and each slide piece tip portion is configured to protrude outward from each leg portion tip. The plug extracting tool according to claim 1, wherein The outer surface of each leg has a slide engagement portion formed along the longitudinal direction,
2. The slide engaged portion that is slidably engaged with each slide engaging portion of the extraction tool main body is provided in each slide piece of the extraction assisting member. Plug extraction tool as described.   The length of one side of each slide piece of the said drawing-out auxiliary member is made equal, or the length of one slide piece is made shorter than the other, The Claim 1 thru | or 4 characterized by the above-mentioned. Plug removal tool.

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