JP2014100007A - Wire cutting tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire cutting tool which is capable of cutting both of an aluminum wire and a copper wire and in which, even when it is necessary to cut both of the aluminum wire and the copper wire through consistent work, the need to use both of a bolt clipper adaptive to the aluminum wire and a cable cutter adaptive to the copper wire is eliminated.SOLUTION: A wire cutting tool 1 comprises a wire cutting mechanism 2 and a pair of connection members 7 to be a handle. In the wire cutting mechanism 2, a blade body 3 and a blade body 4 are connected via a support shaft 5, such that a cutting blade 311 and a cutting blade 411 oppose each other and a cutting blade 321 and a cutting blade 421 oppose each other. By rotating the blade body 3 and the blade body 4 around the support shaft 5, the cutting blade 311 and the cutting blade 411 get away from and close to each other and at the same time, the cutting blade 321 and the cutting blade 421 get away from and close to each other. Therefore, by changing a direction of the wire cutting mechanism 2, the cutting blades 311 and 411 and the cutting blades 321 and 421 can be switched.

Description

  The present invention is used, for example, for cutting an aerial wire, and relates to a structure of a wire cutting tool capable of switching a cutting blade to be used according to the type of the wire.

  For the types of electric wires, there were coating on the outside, aluminum strands in the middle part, electric wires with a steel core in the center (hereinafter referred to as aluminum wires), coating on the outside, and copper strands in the center. There are copper wires (hereinafter referred to as copper wires). And it is common that the electric wire used as a high voltage distribution line is an aluminum wire, and in order to cut | disconnect the aerial state aluminum wire containing such a steel core, the bolt shown by patent document 1, for example is shown. A cutting tool such as a clipper is used. On the other hand, a cutting tool such as a cable cutter disclosed in Patent Document 2 is used to cut an aerial copper wire used other than the high-voltage distribution line.

  And depending on the indirect hot wire operation, it may be necessary to cut both the cutting of the high-voltage distribution line and the electric wires other than the high-voltage distribution line in a consistent work flow.

Japanese Patent Laid-Open No. 5-38615 Japanese Unexamined Patent Publication No. 2011-78497

  However, when an operator uses both a cutting tool such as a bolt clipper and a cutting tool such as a cable cutter to cut both high-voltage distribution lines and non-high-voltage distribution lines, the vehicle Has a disadvantage that the mounting space is taken by these cutting tools. And, if the site of the indirect hot line work is a place where the vehicle cannot enter, both the cutting tool such as the bolt clipper and the cutting tool such as the cable cutter will be carried to the work site by the human power of the worker. Because cutting tools such as bolt clippers and cutting tools such as cable cutters are heavy, it is heavy labor for workers to transport both cutting tools, and the workers become tired and other tasks, and this is the main task of indirect hot-line work. May cause trouble.

  Here, in order to use only one cutting tool, it is considered to cut the aluminum wire using a cutting tool compatible with copper wire such as a cable cutter, but since the aluminum wire has a steel core, The cutting blade of a cutting tool such as a cable cutter may be damaged due to spillage or chipping, or a large force may be required to cut a hard steel core, and the aluminum wire may not be cut well. Conceivable. In this respect, the bolt clipper can appropriately cut the aluminum wire even if the aluminum wire has a steel core due to its structure.

  In addition, in order to use only one cutting tool, it is considered to cut copper wire using a cutting tool compatible with aluminum wire such as a bolt clipper, but the cutting tool such as bolt clipper is the base of the cutting blade. Since the line from the tip to the tip is straight, if a soft copper wire is cut with a cutting tool such as a bolt clipper, the cut surface of the copper wire will be crushed, making post-processing work such as reconnection difficult. Have In this respect, a cutting tool such as a cable cutter has an arcuate portion in the line of the blade edge from the base to the tip of the cutting blade, and cuts in a substantially oval space formed by both cutting blades. The cut surface of the wire is clean and suitable for cutting a copper wire for reconnection.

  Therefore, the present invention makes it possible to cope with both an aluminum wire and a copper wire by switching the cutting blade to be used according to the type of electric wire to be cut. It is an object of the present invention to provide an electric wire cutting tool that eliminates the need to use both a cutting tool such as a bolt clipper and a cutting tool such as a cable cutter even when both of them must be cut by a consistent operation.

  In the electric wire cutting tool according to the present invention, the first blade body and the second blade body intersect at an intersection, and the first blade body and the second blade body can rotate around the intersection. A wire cutting tool comprising: a wire cutting mechanism connected to the wire cutting mechanism; and a pair of connecting members connected to the wire cutting mechanism and serving as a handle, wherein the wire cutting mechanism includes the first blade body. A first portion having a first cutting blade extending linearly, and a second cutting blade bent inward in an arc shape, and the first portion from an extension line extending in the longitudinal direction of the first portion. A second portion shifted in the width direction of the portion, and a connecting portion connecting the first portion and the second portion, wherein the second blade body extends linearly. An extension line having a first part having a cutting blade and a second cutting blade bent inward in an arc shape and extending in the longitudinal direction of the first part A second portion shifted from the first portion in the width direction, and a connecting portion connecting the first portion and the second portion, and the first blade body and the second portion. The first cutting blade of the first blade body and the first cutting blade of the second blade body face each other, and the second cutting of the first blade body. The blade and the second cutting blade of the second blade body face each other, and the first blade body and the second blade body rotate around the intersection, whereby the first blade body The first cutting blade of the second blade and the first cutting blade of the second blade body at the same time, the second cutting blade of the first blade body and the second cutting blade of the second blade body Are characterized by being far and near (claim 1). The first cutting blade is suitable for cutting an aluminum wire with a steel core because the cutting edge has a line extending linearly. Since the second cutting blade has a line in which the cutting edge is bent inwardly in an arc shape, a substantially oval space is formed when the second cutting blades face each other, so that the soft copper wire is cut. It is suitable for. The first blade body and the second blade body are substantially S-shaped by a first portion, a connected portion, and a second portion, respectively. And the electric wire cutting mechanism has comprised the substantially X shape by connecting a 1st blade body and a 2nd blade body.

  As a result, when the electric wire in the aerial state is an aluminum wire, the first cutting blade of the first blade body and the first cutting blade of the second blade body are directed to the electric wire in the aerial state. By arranging the first cutting blade of the first blade body and the first cutting blade of the second blade body so as to sandwich this electric wire, the cutting blades are brought close to each other until they overlap each other. Even if the overhead wire is an aluminum wire, it is cut without spilling or chipping. And when the electric wire in the aerial state is a copper wire, the second cutting blade of the first blade body and the second cutting blade of the second blade body are directed to the electric wire in the aerial state, After placing the second cutting blade of the first blade body and the second cutting blade of the second blade body in the form of sandwiching this electric wire, by bringing them close to each other until the cutting blades overlap each other, Even if the electric wire in the aerial state is a copper wire, the cut surface is cut without being crushed.

And in the electric wire cutting tool which concerns on this invention, the said electric wire cutting mechanism is the 1st site | part of the said 1st blade body, the 2nd site | part, the 1st site | part of the said 2nd blade body, and the 2nd site | part. In addition, each of the connecting members is connected to the connecting member, and the connecting member has a rod-like shape, and has a first portion of the first blade body at one end in the longitudinal direction, A connecting means for connecting the first part of the second blade body, the second part of the first blade body, and the connecting means of the 21st part of the second blade body are provided. (Claim 2).
More specifically, as a connecting means of the connecting member, a groove portion and one or more through holes through which the fixing member is inserted are formed at one end in the longitudinal direction, and the groove width of the groove portion is the first width. The first part of the first blade body, the second part, and the first part of the second blade body, and the first part, the dimensions of the second part of the second blade body can be fixed and sandwiched, and the first When the first member, the second member, and the first member of the second blade member, and the first member of the second blade member are connected by the groove of the connecting member, One or more through-holes through which the fixing member is inserted are formed at positions communicating with the first through-holes of the connecting member, the first portion of the first blade body, and the second blade body. The through hole of the first part or the through hole of the connecting member, the second part of the first blade body, and the through hole of the second part of the second blade body are fixed. By inserting the tool, and the connecting member and the wire cutting mechanism is connected (claim 3). The fixture is, for example, a lock pin.

  Thereby, when the wire cutting tool wants to cut the aluminum wire, the first part of the first blade body and one end in the longitudinal direction of the connecting member are connected and the first part of the second blade body is connected to the first part. By connecting one end in the longitudinal direction of the connecting member, a wire cutting tool suitable for cutting an aluminum wire is formed. When it is desired to cut a copper wire, the second part of the first blade body and the connecting member An electric wire cutting tool suitable for cutting copper wires is formed by connecting one end in the longitudinal direction and connecting the second portion of the second blade body and one end in the longitudinal direction of the connecting member. . The wire cutting tool has a handle portion by connecting a connecting member to the wire cutting mechanism, so it cuts an aerial wire in a position close to the worker, When cutting, an operator can open and close the wire cutting mechanism of the wire cutting tool with a pair of connecting members.

  Furthermore, in the wire cutting tool according to the present invention, a connector for connecting to an indirect hot wire tool capable of extending the entire length is provided at the other end in the longitudinal direction of the connecting member. An indirect hot wire tool that can extend the entire length is, for example, a common operation rod.

  As a result, the indirect hot wire tool is provided with a handle portion, and the distance from the handle portion to the wire cutting mechanism is secured, so that the electric wire in an aerial state at a position remote from the worker is obtained. When cutting a wire or cutting a charged wire as an indirect hot wire operation, an operator can remotely open and close the wire cutting mechanism of the wire cutting tool with an indirect hot wire tool .

  As described above, when the wire cutting tool is cut with an aluminum wire, the first cutting blade of the first blade body and the first cutting blade of the second blade body are made of aluminum wire. Then, after placing the first cutting blade of the first blade body and the first cutting blade of the second blade body in the form of sandwiching the aluminum wire, they are brought close to each other until the cutting blades overlap each other. By cutting, the aluminum wire can be cut without spilling or chipping, and when cutting is a copper wire, the second cutting blade and the second blade of the first blade After the second cutting blade of the first blade body and the second cutting blade of the second blade body are arranged in such a manner that the second cutting blade is directed to the copper electric wire and the copper wire is sandwiched therebetween, By bringing the cutting blades close to each other until they overlap each other, the copper wire can be cut without breaking the cut surface.

  That is, since the wire cutting tool can suitably cut both the aluminum wire and the copper wire alone by switching between the first cutting blade and the second cutting blade, a cutting tool such as a bolt clipper. It is possible to eliminate the use of both a cutting tool such as a cable cutter and a cable cutter, and it is possible to reduce the labor when the cutting tool is transported by an operator and to reduce the mounting space on the vehicle.

  In particular, according to the second and third aspects of the invention, when the aluminum wire is to be cut, the first portion of the first blade body and one end in the longitudinal direction of the connecting member are connected and the second blade body is connected. By connecting one end of the connecting portion and the longitudinal direction of the connecting member, a wire cutting tool suitable for cutting an aluminum wire can be formed, and when it is desired to cut a copper wire, the first blade body The second part of the connecting member and one end in the longitudinal direction of the connecting member are connected, and the second part of the second blade body and the one end in the longitudinal direction of the connecting member are connected to cut the copper wire. A suitable wire cutting tool can be formed. That is, it is possible to easily switch between an electric wire cutting tool suitable for cutting an aluminum wire and an electric wire cutting tool suitable for cutting a copper wire.

  And especially according to invention of Claim 2, 3, since a connection member is connected with a wire cutting mechanism and a wire cutting tool is equipped with a handle part, it exists in the position close | similar to a worker. When cutting an aerial wire or cutting a wire in a power failure operation, an operator can open and close the wire cutting mechanism of the wire cutting tool with a pair of connecting members.

  In particular, according to the invention described in claim 4, the wire cutting tool is an indirect hot wire tool provided with a handle portion, and a distance from the handle portion to the wire cutting mechanism is ensured. When cutting an aerial wire at a remote location or cutting a charged wire as an indirect hot wire operation, the worker can hold the indirect hot wire tool remotely and use the wire of the wire cutting tool. The cutting mechanism can be opened and closed.

FIG. 1 is an explanatory view showing a configuration of a wire cutting mechanism of the wire cutting tool of the present invention, FIG. 1 (a) is a front view of the wire cutting mechanism, and FIG. 1 (b) is an A- of the wire cutting mechanism. FIG. 1C is a cross-sectional view taken along line B-B of the wire cutting mechanism, and FIG. 1D is a side view of the wire cutting mechanism. FIG. 2 is an explanatory view showing a first blade body and a second blade body constituting the wire cutting mechanism shown in FIG. Drawing 3 is an explanatory view showing the composition mode which enabled use of the cutting blade suitable for cutting an aluminum wire about an electric wire cutting tool. Drawing 4 is an explanatory view showing the composition mode which enabled use of the cutting blade suitable for cutting a copper wire about an electric wire cutting tool. FIG. 5 is an explanatory view showing a process of forming a wire cutting tool by connecting a connecting member to the wire cutting mechanism shown in FIG. FIG. 6 is an explanatory view showing the structure of the tip of the connecting member shown in FIG. FIG. 7 is an explanatory diagram showing a process of connecting the connecting portion of the common operation rod to the connector of the connecting member shown in FIG. 5 to make the wire cutting tool an indirect hot wire tool specification.

  Embodiments of the present invention will be described below with reference to the drawings.

  In FIG.1 and FIG.2, the electric wire cutting mechanism 2 which comprises the main components of the electric wire cutting tool 1 is shown. This wire cutting tool 1 is configured to have a blade body 3 and a blade body 4 shown in FIG.

  As shown in FIGS. 1B to 1D, the blade body 3 is a thin member, and includes a first part 31, a second part 32, a first part 31, and a first part 31. The connection part 33 which connects the 2 part 32 is formed.

  The first part 31 of the blade body has a linear shape, and has a cutting blade 311 and two through holes 312 for connecting to the connecting member 7 described below. The cutting blade 311 is formed on one side of the first part 31 of the blade body, and the cutting edge line of the cutting blade 311 is connected to the connecting part 33 from the vicinity of the tip of the first part 31 of the blade body. It extends linearly toward the vicinity. Further, as shown in FIGS. 1B and 1C, the cross section of the cutting blade 311 tapers toward the edge on the side of the first portion 31 of the blade body, and has an acute triangular shape. It has become. In this embodiment, the through holes 312 and 312 are arranged along the longitudinal direction of the first portion 31 of the blade body. The cutting blade 311 is thicker than the cutting blade 321 described below so that the blade does not lose the steel core of the aluminum wire P1. The same applies to the cutting blade 411 described below.

  The second portion 32 of the blade body has a curvilinear shape, and includes a cutting blade 321 and two through holes 322 for connecting to the connecting member 7 described below. And the 2nd site | part 32 of a blade body is in the position which shifted | deviated to the width direction (short direction) of the 1st site | part 31 of the said blade body from the extension line extended in the longitudinal direction of the 1st site | part 31 of a blade body. is there. The cutting blade 321 is a curved inner peripheral side of the second portion 32 of the blade body (a side continuous with the side opposite to the side where the cutting blade 311 of the first portion 31 of the blade body is formed). Is formed. The line of the cutting edge of the cutting blade 321 extends in an arc shape from the vicinity of the tip of the second portion 32 of the blade body toward the vicinity of the connecting portion 33. Further, as shown in FIGS. 1B and 1C, the cross section of the cutting blade 321 tapers toward the edge on the side of the second portion 32 of the blade body, and has an acute triangular shape. It has become. In this embodiment, the through holes 322 and 322 extend in a manner parallel to the straight line connecting the through holes 312 and 312 of the first part 31 of the blade body in the width direction of the first part 31 of the blade body. It is arranged side by side on a straight line. The reason why the cutting blade 321 is relatively thin is to make it easier to insert the blade into the coating of the copper wire P2. The same applies to the cutting blade 421 described below.

  The connecting portion 33 of the blade body includes a first portion 31 of the blade body and a second portion of the blade body which is shifted in the width direction of the first portion 31 of the blade body with respect to the first portion 31 of the blade body. In order to connect the part 32, it has a shape extending obliquely with respect to the longitudinal direction of the first part 31 of the blade body. And the through-hole 331 for inserting the below-mentioned support shaft 5 is formed in the connection part 33 of a blade body.

  As shown in FIG. 2, the blade body 4 is a rotationally symmetric object (the same form) with respect to the blade body 3. For convenience, the blade body 4 will be described below with reference numerals different from those of the blade body 3. .

  As shown in FIGS. 1B to 1D, the blade body 4 is a thin member, like the blade body 3, and includes a first portion 41, a second portion 42, The first part 41 and the second part 42 are connected to each other and a connecting part 43 is formed.

  The first part 41 of the blade body has a linear shape, and has a cutting blade 411 and two through holes 412 for connecting to a connecting member 7 described below. The cutting blade 411 is formed on one side of the first part 41 of the blade body, and the cutting edge line of the cutting blade 411 is connected to the connection part 43 from the vicinity of the tip of the first part 41 of the blade body. It extends linearly toward the vicinity. Further, as shown in FIGS. 1B and 1C, the cross section of the cutting blade 411 tapers toward the edge on the side of the first portion 41 of the blade body, and has an acute triangular shape. It has become. In this embodiment, the through holes 412 and 412 are arranged along the longitudinal direction of the first portion 41 of the blade body.

  The second portion 42 of the blade body has a curvilinear shape, and has a cutting blade 421 and two through holes 422 for connecting to the connecting member 7 described below. And the 2nd site | part 42 of a blade body has shifted | deviated to the width direction (short direction) of the 1st site | part 41 of the said blade body from the extension line extended in the longitudinal direction of the 1st site | part 41 of a blade body. is there. The cutting blade 421 has a curved inner peripheral side of the second portion 42 of the blade body (a side continuous with the side opposite to the side where the cutting blade 411 of the first portion 41 of the blade body is formed). Is formed. The line of the cutting edge of the cutting blade 421 extends in an arc shape from the vicinity of the tip of the second portion 42 of the blade body toward the vicinity of the connecting portion 43. Further, as shown in FIGS. 1B and 1C, the cross section of the cutting blade 421 tapers toward the side edge of the second portion 42 of the blade body and becomes an acute triangular shape. It has become. In this embodiment, the through-holes 422 and 422 extend in a manner parallel to the straight line connecting the through-holes 412 and 412 of the first part 31 of the blade body in the width direction of the first part 41 of the blade body. It is arranged side by side on a straight line.

  The connection part 43 of the blade body includes a first part 41 of the blade body and a second part of the blade body that is shifted in the width direction of the first part 41 of the blade body with respect to the first part 41 of the blade body. In order to connect the portion 42, the shape extends obliquely with respect to the longitudinal direction of the first portion 41 of the blade body. And the through-hole 431 for inserting the below-mentioned support shaft 5 is formed in the connection part 43 of a blade body.

  As shown in FIG. 1 (d), the support shaft 5 for connecting the blade body 3 and the blade body 4 to be relatively rotatable is based on the inner diameter dimensions of the through holes 331 and 431 of the connecting portions 33 and 43. The head 51 has a larger outer diameter, and the shaft 52 extends from the head 51 and has an inner diameter slightly smaller than the inner diameter of the through holes 331 and 431 of the connecting portions 33 and 43. The shaft bar 52 is threaded at a portion where the nut 6 is extrapolated, and is not threaded at the portions which are in the through holes 331 and 431. As shown in FIG. 1 (d), the nut 6 has an outer shape larger than the inner diameter of the through holes 331 and 431 of the connecting portions 33 and 43, and an inner diameter that can be inserted into the shaft 52 of the support shaft 5. And a threaded hole having a ring shape.

  The blade body 3 and the blade body 4 having such a configuration are overlapped in an intersecting manner, the through hole 331 and the through hole 431 are communicated, and a support shaft is inserted into the through holes 331 and 431, and the support shaft 5. When the wire cutting mechanism 2 is formed by screwing the nut 6 into the portions protruding from the through holes 331 and 431 and connecting the blade body 3 and the blade body 4 in a rotatable manner, FIG. 4, the cutting blade 311 of the blade body 3 and the cutting blade 411 of the blade body 4 face each other, the cutting blade 321 of the blade body 3 and the cutting blade 421 of the blade body 4 face each other, and the blade body 3 When the blade body 4 rotates about the support shaft 5, the cutting blade 311 of the blade body 3 and the cutting blade 411 of the blade body 4 are brought close to each other, and at the same time, the cutting blade 321 of the blade body 3 and the cutting of the blade body 4 are cut. The blade 421 is in perspective.

  Moreover, when the blade body 3 and the blade body 4 are closed as shown in FIG. 1A, the object (the aluminum wire P1 and the copper wire P2 described below) can be completely cut. The cutting edge of the cutting blade 311 and the cutting edge of the cutting blade 411 slightly overlap as shown in FIG. 1B, and the cutting edge of the cutting blade 321 and the cutting edge of the cutting blade 421 are shown in FIG. 1C. A little overlap.

  As shown in FIG. 2 in particular, the cutting blade 311 has a cutting edge line extending linearly from the vicinity of the tip of the first portion 31 of the blade body toward the vicinity of the connecting portion 33 and cutting. The blade 411 has a cutting edge line that extends linearly from the vicinity of the tip of the first portion 41 of the blade body toward the vicinity of the connecting portion 43, and therefore, as shown in FIG. After the aluminum wire P1 is interposed between the blades 311 and 411, the blade body 3 and the blade body 4 are rotated around the support shaft 5, and the cutting blades 311 and 411 are closed. Even if it enters, the aluminum wire P1 can be reliably cut without spilling or chipping.

  In particular, as shown in FIG. 2, the cutting blade 321 has a cutting edge line extending in an arc shape from the vicinity of the distal end of the second portion 32 of the blade body toward the vicinity of the connecting portion 33. 421 has a cutting edge line extending in an arc shape from the vicinity of the tip of the second part 42 of the blade body toward the vicinity of the connecting part 43, and the cutting blade 321 and the cutting blade 421 are substantially between them. Since an oval space is formed, as shown in FIG. 4, after interposing the copper wire P <b> 2 in the substantially oval space between the cutting blades 321 and 421, the support shaft 5 is the center. By rotating the blade body 3 and the blade body 4 and closing the cutting blades 321 and 421, even if the copper wire P2 is soft, the copper wire P2 can be reliably cut without crushing its cross-sectional shape. .

  Next, as the wire cutting tool 1 having the wire cutting mechanism 2, blade bodies 3, 4 for forming the wire cutting tool 1 for cutting the aluminum wire P1 and the wire cutting tool 1 for cutting the copper wire P2, respectively. The configuration of the connecting member 7 and the connecting process will be described with reference to FIGS. 5 and 6.

  The connecting member 7 is a rod-like member such as a long circular bar, for example, and as shown in FIG. 5, two through holes 72 are formed on one end side in the longitudinal direction. The distance between the through hole 72 and the through hole 72 of the connecting member 7 is the distance between the through hole 312 and the through hole 312 of the first part 31 of the blade body, and the through hole 322 of the second part 32 of the blade body. Between the through hole 322, the distance between the through hole 412 and the through hole 412 of the first part 41 of the blade body, and the through hole 422 and the through hole 422 of the second part 42 of the blade body. It is the same as the interval.

  Further, as shown in FIG. 6, the connecting member 7 has a groove 71 extending in the longitudinal direction (axial direction) of the connecting member 7 on the side where the through hole 72 is formed at one end in the longitudinal direction. ing. The groove portion 71 has a shape perpendicular to both the through holes 72, and the groove width along the short direction is determined by the first portions 31, 41 and the second portion 32 of the blade bodies 3, 4; It is substantially the same as the thickness of 42. And the depth from the one end of the longitudinal direction of the groove part 71 is the groove part 71 in the 1st site | part 31 of a blade body, the 2nd site | part 32 of a blade body, the 1st site | part 41 of a blade body, or the blade body. When the second portion 42 is inserted until it hits the bottom surface of the groove portion 71, it is set so as to communicate with the through holes 312, 322, 412, 422.

  Configuration of the first part 31 of the blade body, the second part 32 of the blade body, the first part 41 of the blade body, and the through holes 312, 322, 412 and 422 of the second part 42 of the blade body. And by setting it as the structure of the connection member 7, the connection member 7 is connected with the blades 3 and 4 of the wire cutting mechanism 2 by passing through a required process, and the wire cutting tool 1 is formed.

  As shown by the white arrow in FIG. 5, one of the connecting members 7 is moved, and the second portion 32 of the blade body is extrapolated by the groove 71, and the through holes 72 and 72 and the through holes 322 and 322 are further inserted. Then, the fixture 8 such as a lock pin is inserted into the through-hole 72 and the through-hole 322, and the other connecting member 7 is moved so that the second 71 of the blade body is moved by the groove 71. After the part 42 is extrapolated and the through holes 72 and 72 and the through holes 422 and 422 are communicated with each other, the fixture 8 such as a lock pin is inserted into the through hole 72 and the through hole 422. Thereby, the connecting member 7 functions as a handle portion, and the wire cutting tool 1 suitable for cutting the aluminum wire P1 by the cutting blades 311 and 411 is formed. The lock pin has a structure in which, for example, a bolt is pressed against a spring and is fastened by being screwed into a screw hole on the opposite side.

  In order to form the wire cutting tool 1 suitable for cutting the copper wire P2 by the cutting blades 321 and 421, although not shown, the connecting member 7 is moved, and the first portion 31 of the blade body is moved by the groove 71. And, further, the through holes 72 and 72 and the through holes 312 and 312 are communicated with each other, and then, for example, the fixing tool 8 such as a lock pin is inserted into the through hole 72 and the through hole 312, and the connecting member 7. , The first portion 41 of the blade body 4 is extrapolated by the groove 71, and the through holes 72, 72 and the through holes 412, 412 are communicated with each other, and then the fixture 8 such as a lock pin, for example. What is necessary is just to let it pass through the through hole 72 and the through hole 412.

  Thereby, the connection member 7 is connected to the second part 32 of the blade body and the second part 42 of the blade body, or the connection member 7 is connected to the first part 31 of the blade body and the second part 41 of the blade body. Are switched between the cutting blades 311 and 411 suitable for cutting the aluminum wire P1 and the cutting blades 321 and 421 suitable for cutting the copper wire P2, and consequently the wire cutting tool 1 corresponding to the cutting of the aluminum wire P1. And the wire cutting tool 1 corresponding to the cutting of the copper wire P2 can be switched. Moreover, this electric wire cutting tool 1 is significant for use in a power failure operation or the like.

  Furthermore, the structure and process of the connection member 7 and the common operation rod 9 for making this electric wire cutting tool 1 a tool suitable for indirect hot wire work are demonstrated using FIG.5 and FIG.6.

  The connecting portion 91 of the common operation rod 9 is known per se, and a protruding portion 93 protruding from the top of the head 92 and two side protrusions protruding so as to be symmetrical from the side surface of the head 92. Part 94. Reference numeral 95 indicates a lock nut. By rotating the lock nut 95 in a predetermined direction, the lock nut 95 can be firmly fastened to the connector 73 of the connecting member 7 described below.

  The connector 73 also has a well-known structure, and is provided on the side opposite to the side having the groove 71 in the longitudinal direction of the connecting member 7 as shown in FIGS. The connector 73 has a bottomed hole portion (not shown) into which the head 92 constituting the connection portion 91 of the common operation rod 9 can be inserted along the axial direction from the lower end side. Then, two slit portions 74a are formed at positions so that this hole portion is substantially a target with the center of the hole portion as a reference. These slits 74 extend from the opening end of the hole portion along the axial direction of the hole portion to the middle thereof (the same dimension as the lower end of the connection portion 91 to the projection portion 93), and then both sides in the radial direction of the hole portion. It has a substantially T-shaped shape extending toward. That is, the slit 74 includes a slit portion 74a extending along the axial direction of the hole portion and a slit portion 74b extending along the radial direction of the hole portion.

  With such a configuration of the connector 73 of the connecting member 7 and the connection portion 91 of the common operation rod 9, the side protrusion 94 is passed through the slit portion 74 a of the slit 74 and the hole of the connector 73 is connected to the hole of the connector 73. By inserting the head 92 and rotating one of the common operation rod 9 or the connector 73, the side projection 94 of the head 92 is accommodated in the recess of the slit portion 74 b of the slit 74, and the connection portion of the common operation rod 9. 91 will be in a connection state and the full length of the wire cutting tool 1 will be extended.

  Thereby, since the distance from the electric wire cutting mechanism 2 to the handle part of the common operation rod 9 is ensured, the electric wire cutting tool 1 in which the common operation rod 9 is connected to the connector 73 of the connecting member 7 is used as an indirect hot wire tool. It can be used.

DESCRIPTION OF SYMBOLS 1 Electric wire cutting tool 2 Electric wire cutting mechanism 3 Blade body 31 The 1st site | part of a blade body 311 Cutting blade 312 Through-hole (connection means)
32 2nd part of blade body 321 Cutting blade 322 Through-hole (connection means)
33 connection part 331 through-hole 4 blade body 41 first part of blade body 411 cutting blade 412 through-hole (connection means)
42 2nd part of blade body 421 Cutting blade 422 Through-hole (connection means)
43 connecting part 431 supporting shaft hole 5 supporting shaft 6 nut 7 connecting member 71 groove portion 72 through hole 73 connector 74 slit 74a slit portion 74b slit portion 8 lock pin 9 common operation rod 91 connecting portion 92 head portion 93 protruding portion 94 side protrusion Part P1 Aluminum wire P2 Copper wire

In the electric wire cutting tool according to the present invention, the first blade body and the second blade body intersect at an intersection, and the first blade body and the second blade body can rotate around the intersection. An electric wire cutting tool that is used for indirect live work that cuts an overhead electric wire that is in a charged state, and a wire cutting mechanism that is connected to the electric wire cutting mechanism and a pair of connecting members that are connected to the electric wire cutting mechanism. In the wire cutting mechanism, the first blade body includes a first portion having a first cutting blade having a line in which the blade edge extends linearly, and a second portion bent inward in an arc shape. A second part having a cutting blade and connecting the first part and the second part to the second part shifted in the width direction of the first part from the extension line extending in the longitudinal direction of the first part and a connecting portion that, the second blade body, a first cutting blade edge is a line extending linearly A first part having a second cutting blade bent inward in an arc shape, and a second part shifted in the width direction of the first part from an extended line extending in the longitudinal direction of the first part And a connecting portion that connects the first portion and the second portion, and connecting the first blade body and the second blade body, By facing the first cutting blade and the first cutting blade of the second blade body, for cutting an aluminum wire containing a steel core , the second cutting blade of the first blade body and the By facing the second cutting blade of the second blade body, for cutting the copper wire, the first blade body and the second blade body are rotated around the intersection, At the same time as the first cutting blade of the first blade body and the first cutting blade of the second blade body are close to each other, the second cutting blade of the first blade body and the second blade body Second of With a cutting blade to perspective, the first and second sites of the first blade, and, in the first and second sites of the second blade, and the connecting member The connecting member is in the form of a rod, and at one end in the longitudinal direction, the first part of the first blade and the first of the second blade are provided. Or a connecting means for connecting the second part of the first blade body and the connecting means for the second part of the second blade body, and the connecting members forming a pair are: The first blade body and the second blade body to be attached are connected so as to extend in parallel in the same direction from the parts of the first blade body and the second blade body (Claim 1). The first blade body and the second blade body are substantially S-shaped by a first portion, a connected portion, and a second portion, respectively. And the electric wire cutting mechanism has comprised the substantially X shape by connecting a 1st blade body and a 2nd blade body.

And in the electric wire cutting tool which concerns on this invention , the groove part and the 1 or 2 or more through-hole which a fixing member penetrates are formed in the one end of a longitudinal direction as a connection means of the said connection member, The groove | channel of the said groove part The width is such that the first part, the second part, and the first part and the second part of the second blade body of the first blade body can be sandwiched and sandwiched. In addition, when the first part of the first blade body, the second part, and the first part of the second blade body, as a connecting means of the second part, is sandwiched by the groove portion of the connecting member In addition, one or two or more through-holes through which the fixing member is inserted are formed at positions communicating with the through-holes, and the through-hole of the connecting member and the first part of the first blade body, A through hole of the first part of the second blade body or a through hole of the connecting member and a second part of the first blade body, the second blade body By inserting the fastener into the through holes of the second portion, and the connecting member and the wire cutting mechanism is connected (claim 2). The fixture is, for example, a lock pin.

Further, wire cutting tool according to the invention, the longitudinal direction of the other end of the coupling member, a connector for coupling with indirect hot tool capable of extending the entire length is provided (claim 3). An indirect hot wire tool that can extend the entire length is, for example, a common operation rod.

According to this invention , when it is desired to cut the aluminum wire, the first part of the first blade and the one end in the longitudinal direction of the connecting member are connected and the first part of the second blade and the connecting member. By connecting one end in the longitudinal direction, an electric wire cutting tool suitable for cutting an aluminum wire can be formed. When it is desired to cut a copper wire, the second part of the first blade body and the connecting member The one end in the longitudinal direction is connected and the second part of the second blade body and the one end in the longitudinal direction of the connecting member are connected to form a wire cutting tool suitable for cutting copper wires. be able to. That is, it is possible to easily switch between an electric wire cutting tool suitable for cutting an aluminum wire and an electric wire cutting tool suitable for cutting a copper wire.

And according to this invention, since the connecting member is connected to the electric wire cutting mechanism and the handle is provided with the handle portion, the electric wire cutting tool can cut an aerial wire in a position close to the worker. When cutting an electric wire in a power failure operation, an operator can open and close the electric wire cutting mechanism of the electric wire cutting tool with a pair of connecting members.

In particular, according to the invention described in claim 3 , the wire cutting tool is an indirect hot wire tool provided with a handle portion, and a distance from the handle portion to the wire cutting mechanism is secured. When cutting an aerial wire at a remote location or cutting a charged wire as an indirect hot wire operation, the worker can hold the indirect hot wire tool remotely and use the wire of the wire cutting tool. The cutting mechanism can be opened and closed.

Claims (4)

An electric wire cutting mechanism in which a first blade body and a second blade body intersect at an intersection, and the first blade body and the second blade body are rotatably connected around the intersection point; A wire cutting tool comprising a pair of connecting members connected to the wire cutting mechanism and serving as a handle,
The wire cutting mechanism is
The first blade body has a first portion having a first cutting blade extending linearly, and a second cutting blade bent inward in an arc shape, and extends in the longitudinal direction of the first portion. A second portion shifted in the width direction of the first portion from the extension line, and a connecting portion connecting the first portion and the second portion;
The second blade body has a first portion having a first cutting blade extending linearly and a second cutting blade bent inward in an arc shape, and extends in the longitudinal direction of the first portion. A second portion shifted in the width direction of the first portion from the extension line, and a connecting portion connecting the first portion and the second portion;
By connecting the first blade body and the second blade body, the first cutting blade of the first blade body and the first cutting blade of the second blade body face each other, While the second cutting blade of the first blade body and the second cutting blade of the second blade body face each other,
The first cutting blade of the first blade body and the first cutting blade of the second blade body by rotating the first blade body and the second blade body around the intersection. And the second cutting blade of the first blade body and the second cutting blade of the second blade body are brought close to each other at the same time. The wire cutting mechanism is
In the first part, the second part and the first part of the second blade body, and the second part of the first blade body are provided with connection means with the connection member, respectively.
The connecting member is
It is a rod-shaped one, and at one end in the longitudinal direction, the first part of the first blade body, the connecting means of the first part of the second blade body, or the first blade body The wire cutting tool according to claim 1, further comprising a connecting means for connecting the second part and the connecting means for the 21st part of the second blade body. As a connecting means of the connecting member, a groove portion and one or more through holes through which the fixing member is inserted are formed at one end in the longitudinal direction, and the groove width of the groove portion is the first width of the first blade body. The first part, the second part and the first part of the second blade body, and the size of the second part can be sandwiched and sandwiched,
When the first part of the first blade body, the second part and the first part of the second blade body, as a connecting means of the second part, when sandwiched by the groove portion of the connection member, One or more through-holes through which the fixing member is inserted are formed at positions communicating with the through-holes,
The through hole of the connecting member and the first part of the first blade body, the through hole of the first part of the second blade body, or the through hole of the connecting member and the second part of the first blade body. The wire cutting mechanism and the connecting member are connected to each other by inserting a fixing tool through this part and the through hole of the second part of the second blade body. The electric wire cutting tool described.   The connector for connecting with the indirect hot wire tool which can extend full length is provided in the other end of the longitudinal direction of the said connection member, The Claim 1 characterized by the above-mentioned. Wire cutting tool.

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