JP2008079432A - Bifocal operating tool capable of indirect live wire work - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a far-and-near work tool capable of working at a position far from an operator or a position near to an operator with an identical top end work tool, and performing indirect hot-line work at the far position. <P>SOLUTION: This far-and-near work tool which can perform indirect hot-line work has the top end work tool constituted by a work portion excepting to a handle of the work tool having the handle, an insulation operating bar used for the indirect hot-line work, and an extension bar which is jointed to the insulation operating bar to be extended. The top end work tool includes a connecting device which can be detachably connected to the top end portion of the insulation operating bar, and the top end portion of the extension bar at a base edge portion. The extension bar includes a connecting device which can be detachably connected to the base end portion of the top end work tool and the base end portion of the insulation operating bar at the top end portion. The insulation operating bar has a connecting device which can be detachably connected to the base end portion of the top end work tool at the top end portion, and a connecting device which can be detachably connected to the top end portion of the extension bar at the base end portion. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a far / near work tool that can work appropriately at either a position far from or close to an operator and that can perform an indirect live-line work at a far position.

  Conventionally, when conducting work on live wires (overhead wires), indirect hot wire work has been carried out from outside the live wire proximity range without directly touching the live parts of the wire. 8, a long insulating operation rod (insulating rod) 101 formed of an insulating material capable of positioning the tip at the working position of the overhead wire (live wire), and its tip An indirect hot wire working tool 100 composed of a tip tool 102 that can be detachably connected (coupled) is used.

  The indirect hot wire working tool 100 is configured such that a tip tool 102 that is detachably connected to the tip portion of one insulating operation rod 101 is replaced with a tip tool 102 corresponding to the purpose, for example, a binding tool. The work was performed by exchanging with a container (see Patent Document 1 and FIG. 8 (a)), a tongue (see FIG. 8 (b)), and the like.

Further, in the indirect hot-line operation, when the length of the insulating operation rod 101 is not sufficient to position the tip tool 102 at the work position, a short rod-shaped adding rod (not shown) is provided at the base end portion of the insulating operation rod 101. ) To extend the length of the insulating operation rod 101 and perform the indirect hot wire operation.
JP 2005-172752 A

  By the way, in the indirect hot line work, there are cases where a tree branch or the like located near the overhead line becomes an obstacle, and in this case, it is necessary to cut the tree branch or the like. However, the indirect hot wire working tool has only a tip tool connected to its tip used as a tool such as a binding hitter or a tongue as described above, and a sickle for cutting a tree branch or the like. There was no tip work tool like.

  Therefore, in the indirect live-line work, the cutting work of the disturbing tree branch located near the overhead line uses a long work tool with a sickle blade connected to the tip of a long rod-like body that does not have insulation. In addition, workers must wear protective gear to perform hot-line work, and therefore, when wearing protective gear, and when wearing the protective gear, the work is very complicated, and the work site is protected. Since it was necessary to carry tools etc., a lot of labor was required for transportation to work sites such as in the mountains.

  Moreover, the sickle has a crescent blade attached to the tip of the handle, and is suitable for felling vegetation in the vicinity of the operator by the operator holding the handle. However, since the long working tool has a sickle blade (working part) connected to the tip of a long rod-shaped body, it is easy to perform a felling operation at a position far from the worker. At a close position, the long rod-like body is in the way and it is difficult to perform the felling operation. Therefore, in order to cut down vegetation around the worker's feet, it is necessary to carry a sickle with a normal handle separately. There was a problem that was necessary.

  Therefore, in view of the above-described problems, the present invention is a far-behind working tool capable of working at a position far from or close to the worker using the same tip work tool and capable of indirect hot-line work at a far position. It is an issue to provide.

  Therefore, in order to solve the above-mentioned problems, the dual-purpose work tool capable of indirect hot-line work according to the present invention can be used for a tip work tool composed of a working unit excluding the handle of the work tool provided with a handle, and indirect hot-line work. A working tool for both near and near, capable of indirect live work, comprising an insulating operating rod used and an adder rod connected to and extending the insulating operating rod, wherein the distal working tool has the proximal end at the base end A connecting means that is detachably connectable to a distal end portion of the insulating operation rod and a distal end portion of the adding rod; the adding rod has a proximal end portion of the distal working tool and a proximal end of the insulating operating rod at the distal end portion; A connecting means that can be detachably connected to the base, and the insulating operating rod has a connecting means that can be detachably connected to the base end of the tip working tool at the tip, and the base at the base end. It is provided with connection means that can be detachably connected to the tip of the adder bar. To.

  According to such a configuration, the distal working tool is provided with a connecting means that can be detachably connected to the distal end portion of the insulating operating rod at the proximal end portion thereof, and the insulating operating rod has a proximal end of the distal working tool at the distal end portion thereof. Since the connecting means is detachably connectable to the part, the tip working tool can be detachably connected to the tip of the insulating operation rod.

  By connecting the proximal end portion of the distal end working tool to the distal end portion of the insulating operation rod in this manner, it is possible to perform work at a position far from the operator (a position away from the worker). In addition, since an insulating operation rod is used, indirect hot wire work can also be performed.

  In addition, the insulation operating rod has a connecting means that can be detachably connected to the distal end of the addition rod at the base end, and the addition rod can be detachably connected to the proximal end of the insulation operation rod at the distal end. Since the connecting means is provided, the addition rod can be detachably connected to the base end portion of the insulating operation rod.

  In this way, by connecting the tip of the addition rod to the base end of the insulation operation rod, the length of the insulation operation rod is extended and work at a position that cannot be reached by the insulation operation rod alone (indirect hot line work) )It can be performed.

  Further, the distal end working tool is provided with connecting means detachably connectable to the distal end portion of the adding rod at the proximal end portion thereof, and the adding rod is detachably attached to the proximal end portion of the distal end working tool at the distal end portion. Since the connecting means that can be connected is provided, the distal end portion of the adding rod can be detachably connected to the proximal end portion of the distal end working tool.

  In this way, by connecting the distal end portion of the addition rod to the proximal end portion of the distal end working tool, it is possible to perform work at a position close to the worker (near position). That is, it can be used in the same manner as a normal work tool with a handle.

  In the present invention, the work tool provided with a handle is a tool for performing work such as cutting, tightening, turning, and driving on a work object such as a sickle, saw, hammer, ratchet wrench, etc. It includes tools other than tools, and the work part is a work object excluding the handle such as a sickle blade, saw blade, hammer hitting a nail, etc., a part engaging with a ratchet wrench bolt, etc. The part that acts directly on

  Further, the connecting means provided at the base end portion of the tip operating tool and the connecting means provided at the base end portion of the insulating operating rod are the same, and the connecting means provided at the tip end portion of the insulating operating rod and the adding It is preferable that the connection means provided at the tip of the rod is the same.

  According to such a configuration, similarly to the above, the distal end working tool can be detachably connected to the distal end of the insulating operation rod, and the additional rod can be detachably connected to the base end portion of the insulating operation rod. Furthermore, the distal end portion of the adding rod can be detachably connected to the proximal end portion of the distal end working tool. As a result, using the same tip work tool, work can be performed at a position far from or close to the worker, and at a position far away, indirect hot-line work can be performed, and by sharing parts, manufacturing costs can be reduced. Reductions can also be achieved.

  Moreover, it is preferable that the said front end working tool is the structure by which the said working part is attached to the front end side of the said connection means so that replacement | exchange is possible.

  According to this configuration, since the working part is attached to the tip side of the connecting means in the tip working tool in a replaceable manner, when one of the working part or the connecting means is damaged, Part or connecting means) can be exchanged, and maintenance costs can be reduced.

  As described above, according to the present invention, there is provided a dual-purpose work tool capable of performing work at a position far from or close to the worker using the same tip work tool and capable of indirect live-line work at a far position. Will be able to.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, the dual-purpose work tool capable of performing indirect hot-line work according to the present embodiment (hereinafter, sometimes simply referred to as “far-and-far work tool”) is used for indirect hot-line work. An operating rod 10, a distal end working tool 40 that is detachably connected to the distal end of the insulating operating rod 10, and a base end portion of the insulating operating rod 10 that is detachably connected to extend the insulating operating rod 10. An adder bar 50 is provided.

  The insulating operating rod 10 is added to an insulating long main shaft (insulating rod) 11, a connecting portion (connecting means) 20 for connecting the distal end working tool 40 to the distal end portion thereof, and a proximal end portion of the main shaft 11. A connection fitting (connection means) 30 for connecting the rod 50 is provided.

  The main shaft 11 is formed in a pipe shape having insulating properties. The main shaft 11 is formed of a member that does not easily deform and does not deteriorate in insulation, such as an epoxy resin-based reinforced plastic and a polyester resin-based reinforced plastic that have low hygroscopicity. Further, the main shaft 11 is subjected to waterproofing treatment such as plugging both ends of the main shaft 11 and coating the surface with an adhesive to prevent water from entering the main shaft 11.

  In the intermediate part of the spindle 11, in order to prevent an electric shock accident in indirect hot wire work (indirect hot wire work), a part that can be gripped (gripped) by an operator and other parts (electrical shock if gripped) A safety limit bar 12 is fitted and fixed to clarify the boundary with a possible part). In this embodiment, the length from the proximal end of the connecting portion 20 at the distal end of the main shaft 11 to the distal end of the safety limit rod 12 is an interval of 600 mm (safety limit distance) or more. In addition, as a measure against rain, a draining scissor (draining scissor or rain scissor) 13 is fitted and fixed at a substantially intermediate position from the proximal end of the connecting portion 20 to the distal end of the safety margin scissor 12. Has been. These safety margin ridges 12 and draining ridges 13 are made of soft synthetic rubber. In the present embodiment, the distal end side refers to the distal end side of the main shaft 11, and the proximal end side refers to the proximal end side of the main shaft 11.

  A grip portion G is formed on the base end side of the main shaft 11 to be gripped when an operator operates the insulating operation rod 10. An extension member (extension member) for extending the main shaft 11 is formed on the base end portion. A connection fitting (joint fitting) 30 for connecting a rod 40 is provided. The surface of the grip part G may be covered with rubber or the like as a slip stopper. The connection fitting 30 is covered with a cap 14 when not in use (when the addition bar 40 is not connected), and the cap 14 is connected to the grip portion G and the string 15.

  As shown in FIG. 2A, the connection portion 20 has locking projections 22 and 22 protruding from the peripheral surface of a cylindrical insertion portion 21 having a cylindrical shape. The locking protrusions 22, 22 are constituted by a pair of columnar protrusions, and protrude radially outward at positions on opposite sides of the peripheral surface of the cylindrical insertion portion 21. In the present embodiment, two (a pair of) locking protrusions 22 are provided (projected), but the present invention is not limited to this, and may be one. It may be more than a book.

  In addition, a hole 23 is formed at the tip of the connecting portion 20 so as to communicate with the storage space S formed inside the connecting portion 20 and in which a convex portion 26 of a convex member 25 described later slides. In the storage space S, a convex member 25 that stores the convex portion 26 so as to protrude from the hole 23, and one end is fixed to the storage space S and the other end is fixed to the convex member 25, thereby forming a convex shape. An elastic body (a spring in the present embodiment) 24 that urges the member 25 toward the distal end side of the insulating operation rod 10 is provided. The convex member 25 is composed of a convex portion 26 and a head portion 27, and the head portion 27 extends from one end (rear end) of the straight cylindrical convex portion 26 radially outward. It is formed in a shape and is inserted so that the peripheral surface of the convex portion 26 slides with the inner peripheral surface of the hole 23.

  The internal space S is a cylindrical space whose diameter is set so that the radially outer peripheral surface of the head portion 27 slides. The spring 24 is an elastic body (so-called helical spring) in which a thin line is formed in a spiral shape.

  Thus, the connecting portion 20 is always urged by the spring 24 so that the tip of the convex portion 26 of the convex member 25 protrudes from the tip of the cylindrical insertion portion 21, and the bias is applied to the convex member. The 25 head portions 27 are restricted by contacting the peripheral portion of the hole 23 on the inner space S side.

  A fixing screw 28 is provided on the proximal end side of the connecting portion 20. The fixing screw 28 is formed in a short cylindrical shape, and is provided so that the shaft core is the same as the main shaft 11. Specifically, the fixing screw 28 has a female screw threaded on the inner peripheral surface thereof and is provided so as to be screwed with a male screw threaded on the outer peripheral surface of the base end side of the connecting portion 20 in the main shaft 11. ing. Further, the fixing screw 28 can be rotated around the axis, and by rotating the fixing screw 28 in the fixing direction, the fixing screw 28 moves in the distal direction of the main shaft 11 (arrow α) and rotates in the opposite direction. It moves to the base end side of the main shaft 11 (in the direction opposite to the arrow α).

  As shown in FIGS. 2 (B) and 2 (C), the connection fitting 30 is formed in a bottomed cylindrical shape into which a cylindrical insertion portion 21 ′ of the connection portion 52 in the adding rod 50 described later can be inserted. Engagement notches 31, 31 are formed on the peripheral wall to engage with the locking projections 22 ', 22' provided on the peripheral surface of the cylindrical insertion portion 21 '.

  The engagement cuts 31, 31 are formed from a first cut part 32 cut in the direction along the axis from the peripheral wall edge of the connection fitting 30 to the tip side of the main shaft 11, and from the tip side end part of the first cut part 32. The second cut portion 33 cut along the circumferential direction of the connection fitting 30, and the second cut portion 33 cut in the direction along the axis from the end opposite to the first cut portion 32 to the base end side. This is a hook-shaped cut formed from the third cut 34. Further, the engagement cuts 31, 31 are respectively formed at opposing positions on the peripheral wall constituting the connection fitting 30.

  Returning to FIG. 1, the tip work tool 40 includes a work part 41 excluding the handle of the work tool provided with a handle, and a connection fitting (connecting means) 42 for connecting to the insulating operation rod 10 and the addition rod 50. The working unit 41 is a part that directly acts on a work object other than the handle in a work tool having a handle such as a sickle, a saw, a hammer, and a ratchet wrench, that is, a sickle blade, a saw blade, and a hammer tip nail. Etc., and a portion that engages with a ratchet wrench bolt. In the present embodiment, the working unit 41 is configured with a sickle blade. Note that the work tool is a tool for performing work such as cutting, tightening, turning, and striking a work target, and includes tools other than general tools.

  The working part (sick blade) 41 is attached to the connection fitting 42 so as to be replaceable by a bolt 43. When the working part 41 is damaged, for example, when the cutting edge of the sickle blade is missing, only the working part 41 is provided. The cost (maintenance cost) can be suppressed by exchanging.

  As shown in FIGS. 2B and 2C, the connection fitting 42 has a cylindrical insertion portion 21 of the connection portion 20 in the insulating operation rod 10 and a cylindrical insertion portion 21 of the connection portion 52 in the addition rod 50 described later. Is formed in a bottomed cylindrical shape that can be inserted, and is engaged with locking protrusions 22 and 22 (22 ′, 22 ′) projecting on the peripheral surface of the cylindrical insertion portion 21 (21 ′) on the peripheral wall thereof Engagement cuts 31 ′ and 31 ′ are formed.

  The engagement cuts 31 ′ and 31 ′ include a first cut part 32 ′ cut in the direction along the axis of the connection fitting 42 from the peripheral wall edge of the connection fitting 42 to the tip side, and the first cut part 32 ′. A second cut portion 33 ′ cut along the circumferential direction of the connection fitting 42 from the distal end side end portion, and the shaft core from the opposite end portion to the proximal end side of the second cut portion 33 ′ opposite to the first cut portion 32 ′. Is a hook-like cut formed by a third cut 34 'cut in a direction along the line. Further, the engagement cuts 31 ′ and 31 ′ are respectively formed at positions facing the peripheral wall of the connection fitting 42.

  Returning to FIG. 1, the adding rod 50 includes an insulating rod-shaped main shaft (insulating rod) 51, and a connecting portion (connecting means) 52 for connecting the insulating operating rod 10 and the tip working tool 30 at the tip. Prepare.

  The main shaft 51 is formed in a pipe shape having insulating properties. The main shaft 51 is formed of a member that is not easily deformed and does not deteriorate in insulation, such as an epoxy resin reinforced plastic having a low hygroscopic property, a polyester resin reinforced plastic, or the like. In addition, the main shaft 51 is subjected to waterproofing processing such as plugging both ends of the main shaft 51 and coating the surface with an adhesive to prevent water from entering the main shaft 51. Further, the length of the main shaft 51 is set to be substantially the same as or longer than the length of the handle of the work tool provided with the handle, but the tip work tool 30 is connected to the tip of the main shaft 51 as will be described later. In this case, the length is set so that it can be handled in the same manner as a work tool having a handle. Furthermore, the surface of the main shaft 51 may be covered with a non-slip rubber or the like.

  As shown in FIG. 2A, the connecting portion 52 has locking projections 22 'and 22' protruding from the peripheral surface of a cylindrical cylindrical insertion portion 21 '. The locking protrusions 22 'and 22' are formed of a pair of columnar protrusions, and protrude radially outward at positions opposite to each other on the peripheral surface of the cylindrical insertion portion 21 '. . In the present embodiment, two (a pair of) locking protrusions 22 ′ are provided (projected). However, as in the above, it is not necessary to be limited to this, and there is only one. 3 or more.

  In addition, a hole 23 ′ is formed at the tip of the connection portion 52 so as to communicate with a storage space S ′ formed inside the connection portion 52 and in which a convex portion 26 ′ of a convex member 25 ′ described later slides. ing. In the storage space S ′, a convex member 25 ′ is stored so that the convex portion 26 ′ protrudes from the hole 23 ′, and one end is fixed to the storage space S ′ and the other end is fixed to the convex member 25 ′. Thus, an elastic body (in this embodiment, a spring) 24 ′ that biases the convex member 25 ′ toward the tip end side of the addition rod 50 is provided.

  The convex member 25 ′ is composed of a convex portion 26 ′ and a head portion 27 ′, and the head portion 27 ′ has one end (rear end) of the straight cylindrical convex portion 26 ′ radially outside. And is inserted so that the circumferential surface of the convex portion 26 ′ slides with the inner circumferential surface of the hole 23 ′. The internal space S ′ is a cylindrical space set so that the radially outer peripheral surface of the head portion 27 ′ slides. The spring 24 ′ is an elastic body (so-called helical spring) in which a thin line is formed in a spiral shape.

  Thus, the connecting portion 52 is always urged by the spring 24 ′ so that the tip of the convex portion 26 ′ of the convex member 25 ′ protrudes from the tip of the cylindrical insertion portion 21 ′. The head portion 27 ′ of the convex member 25 ′ is restricted by contacting the peripheral portion on the inner space S ′ side of the hole 23 ′.

  A fixing screw 28 ′ is provided on the proximal end side of the connecting portion 52. The fixing screw 28 ′ is formed in a short cylindrical shape, and is provided so that the axis is the same as the main shaft 51. Specifically, the fixing screw 28 ′ has a female screw threaded on the inner peripheral surface thereof, and is provided so as to be screwed with a male screw threaded on the outer peripheral surface of the base end side of the connecting portion 52 in the main shaft 51. It has been. Further, the fixing screw 28 ′ can be rotated around the axis, and by rotating the fixing screw 28 ′ in the fixing direction, the fixing screw 28 ′ moves in the direction of the tip of the main shaft 51 (arrow α ′) and rotates in the opposite direction. By moving it, it moves to the base end side of the main shaft 51 (in the direction opposite to the arrow α ′).

  The working tool for both perspective according to the present embodiment has the above configuration. Next, the usage state of the working tool for both perspective will be described. First, the connection between the connection fitting 30 (42) and the connection portion 52 (20). The state will be described with reference to FIG.

  The cylindrical insertion portion 21 ′ (21) of the connection portion 52 (20) is inserted into the opening of the bottomed cylindrical connection fitting 30 (42). At this time, adjustment is made so that the engagement protrusions 31 ′, 22 ′ (22, 22) of the cylindrical insertion portion 21 ′ (21) enter the engagement cuts 31, 31 (31 ′, 31 ′). Specifically, the cylindrical fitting portion 21 ′ (21) is connected to the fitting 30 (42) so that the shaft centers of the fitting 30 (42) and the cylindrical insertion portion 21 ′ (21) are both located on the same straight line. ) Is inserted. At this time, the engagement notches 31, 31 (31 ', 31') are provided with first engagement portions 32, 32 (32 ', 32') protruding from the peripheral surface of the cylindrical insertion portion 21 '(21). The connecting portion 52 (20) is rotated and adjusted so that the cylindrical insertion portion 21 '(21) rotates in the circumferential direction around the axis so that the stop protrusions 22' and 22 '(22, 22) enter. Then, the tip of the cylindrical insertion portion 21 ′ (21) is inserted into the opening of the connection fitting 30 (42) (see FIG. 3 (A)).

  Further, when the cylindrical insertion portion 21 ′ (21) is continuously inserted into the connection fitting 30 (42), the convexity of the convex member 25 ′ (25) protruding from the tip of the cylindrical insertion portion 21 ′ (21). The tip of the portion 26 '(26) abuts on the bottom surface of the connection fitting 30 (42). Further, when the cylindrical insertion portion 21 ′ (21) is inserted, the cylindrical insertion portion 21 ′ (21) is biased in the distal direction by a spring 24 ′ (24) accommodated in the internal space S ′ (S) of the cylindrical insertion portion 21 ′ (21). The convex portions 26 ′ (26) of the convex members 25 ′ (25) are opposed to the elastic force of the springs 24 ′ (24), and the tips of the convex portions 26 ′ (26) and the cylindrical insertion portions 21 ′ ( 21) until the tip of the cylindrical insertion portion 21 ′ (21) is in contact with the bottom surface of the connection fitting 30 (42). It is pushed into. At this time, the locking protrusions 22 ′, 22 ′ (22, 22) are positioned at the tips of the first notches 32, 32 (32 ′, 32 ′) so that the first notches 32, 32 (32 ′) are located. , 32 ′) is set. Further, the cut width is set to be slightly wider than the diameter of the locking projections 22 ′, 22 ′ (22, 22), and the second and third cut portions 33, 34 (33 ′, 34). ') Also has a similar cut width. In this state, the cylindrical insertion portion 21 ′ (21) so that the locking projections 22 ′, 22 ′ (22, 22) move along the second cutout portions 33, 33 (33 ′, 33 ′). The connecting portion 52 (20) is rotated (in the direction of arrow β in FIG. 3B) so as to rotate about the axis (see FIG. 3B).

  When the locking protrusions 22 'and 22' (22 and 22) move to the end portions of the second cut portions 33 and 33 (33 'and 33'), they are accommodated in the cylindrical insertion portion 21 '(21). Since the convex portions 26 ′ (26) of the convex members 25 ′ (25) are urged by the springs 24 ′ (24) in the direction protruding from the tips of the cylindrical insertion portions 21 ′ (21), the urging force As a result, the cylindrical insertion portion 21 ′ (21) is pushed out of the connection fitting 30 (42). Accordingly, the locking projections 22 ′, 22 ′ (22, 22) of the cylindrical insertion portion 21 ′ (21) come into contact with the end portions of the third cutout portions 34, 34 (34 ′, 34 ′). Movement is restricted (regulated). Thereafter, the fixing screw 28 ′ (28) is rotated in the fixing direction (in the direction of arrow γ in FIG. 3C), so that the fixing screw 28 ′ (28) is moved in the distal direction (FIG. ) (In the direction of arrow Γ), the distal end side end surface abuts on the proximal end side end surface of the connection fitting 30 (42). In this way, the fixing screw 28 '(28) abuts the connection fitting 30 (42), so that the cylindrical insertion portion 21' (21) is restricted (restricted) from entering the connection fitting 30 (42). Therefore, the locking projections 22 ′, 22 ′ (22, 22) cannot move to the distal end side of the third notches 34, 34 (34 ′, 34 ′), and the connection portion 52 (20) and the connection fitting 30 are not allowed to move. (42) is firmly connected (fixed) (see FIG. 3C).

  As described above, the connection fitting 30 (42) and the connection portion 52 (20) are connected. However, when the connection fitting 30 (42) and the connection portion 52 (20) are separated from each other, the above procedure is performed. Can be separated by performing the reverse.

  By connecting the connection fitting 42 of the tip work tool 40 and the connection portion 20 of the insulating operation rod 10 by the above procedure, the work is performed at a position far from the operator as shown in FIG. It can be set as the work tool 1b for both ends when performing line work.

  Further, after removing the cap 14 covering the base end portion of the insulating operation rod 10 and exposing the connection fitting 30, the connection fitting 30 and the connection portion 52 at the tip of the addition rod 50 are connected by the above procedure. In this way, it is possible to provide a dual-purpose work tool 1a when working at a position farther from the worker. Since the cap 14 is connected to the grip portion G of the insulating operation rod 10 by the string 15, the cap 14 does not fall when it is removed from the connection fitting 30 and is not lost.

  Further, by connecting the connecting fitting 42 of the tip working tool 40 and the connecting portion 52 at the tip of the adding rod 50 by the above procedure, like a working tool having a normal handle as shown in FIG. It can be set as the near / far working tool 1c when working at a position close to the worker.

  As described above, the proximal end portion of the distal end working tool 40 includes the connection fitting 30 that can be detachably connected to the distal end portion of the insulating operation rod 10 and the distal end portion of the addition rod 50, and the distal end portion of the addition rod 50 is A connecting portion 52 detachably connectable to the proximal end portion of the distal working tool 40 and the proximal end portion of the insulating operating rod 10 is provided, and the proximal end portion of the distal working tool 40 is detachably attached to the distal end portion of the insulating operating rod 10. A position far from the operator using the same tip work tool 40 by providing the connection portion 20 that can be connected and the connection fitting 30 that can be detachably connected to the tip portion of the addition rod 50 at the base end portion. However, work can be performed at close positions, and indirect hot-line work can be performed at remote positions.

  In addition, as described above, since the same tip work tool 40 can be used, the work tool having a long and insulating work tool for indirect hot-line work and a work tool having a normal handle is used for the work site. It is not necessary to carry one work tool, and it is only necessary to carry the tip work tool 40, the insulating operation rod 10 and the adder rod 50, so the amount of luggage (work tool) to be carried (carrying) can be reduced. Worker labor can also be reduced.

  It should be noted that the dual-purpose working tool of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

  In the present embodiment, the working portion 41 of the tip working tool 40 is a sickle blade, but is not limited to this, and as shown in FIG. ) Or a portion engaged with a ratchet wrench bolt, a cutting edge tool, or the like. That is, it is only necessary that the working tool is a tip working tool constituted by a working unit excluding the handle of a working tool (or tool) generally having a handle.

  When the working portion 41 is a portion that engages with the ratchet wrench bolt, it is preferable that the intermediate portion of the shaft portion J is configured to be rotatable as shown in FIG. With such a configuration, as shown in FIG. 6, the bolt can be tightened or loosened only by reciprocating the insulating operation rod 10 along the axial direction.

  Moreover, in this embodiment, although the connection part 20 (52) equips the cylindrical insertion part 21 (21 ') with a pair of small columnar projections 22 (22'), it is limited to this. The locking projections may be flat (see FIG. 7 (a)) or may be provided with three or more (see FIG. 7 (b)). In addition, the locking protrusions do not need to be provided so as to protrude in opposite directions, and can be engaged with the connection metal fittings even if they are provided on one side or asymmetrically about the axis (see FIG. 7C). It is only necessary that the notch is formed (set) in a corresponding position and shape.

  Further, the connection portion and the connection fitting do not need to be configured to engage the locking projection and the engagement cut, and a male screw is threaded on the peripheral surface of the connection portion, and the inner peripheral surface of the connection fitting is formed. A female screw corresponding to the male screw may be threaded, and the connection part in which a thread groove is threaded and the connection fitting may be screwed together.

  That is, each connecting means of the tip work tool, the insulating operation rod, and the adder bar can detachably connect the base end portion of the tip work tool, the tip portion of the insulation operation rod, and the tip portion of the adder rod. The distal end and the proximal end of the distal working tool and the proximal end of the insulating operating rod can be detachably connected, and the distal end of the insulating operating rod and the proximal end of the distal working tool can be detachably connected and insulated. As long as the proximal end portion of the operation rod and the distal end portion of the addition rod can be detachably connected, the connection rod may be configured by various connection means other than the present embodiment. By being configured in this way, similarly to the above, by using the same tip work tool and appropriately connecting the insulating operation bar and the adder bar, it is possible to work at a position far from or close to the operator and far away. In position, indirect hot-line work is possible.

(A) of the bi-directional working tool according to the present embodiment shows a front view of the insulating operation rod, (B) shows a front view of the tip working tool, and (C) shows a front view of the adding rod. . (A) of the bi-directional working tool according to the embodiment shows a partial cross-sectional view of the connection part, (b) shows a perspective view of the connection fitting, and (c) shows a longitudinal sectional view of the connection fitting. Show. (A) thru | or (b) of the bi-directional working tool which concerns on the same embodiment are the figures which show the connection method of a connection part and a connection metal fitting. (A) of the dual-purpose work tool according to the embodiment shows a front view of the state in which the tip work tool, the insulating operation rod, and the add-on rod are connected, and (b) shows the tip work tool and the insulation operation rod. The front view of the state which connected is shown, (c) shows the front view of the state which connected the front-end | tip work tool and the addition rod. (A) of the bi-directional work tool according to another embodiment is a perspective view of a tip work tool in which the work part is configured by a hammer head part, and (b) is a work part with a ratchet wrench bolt. The front view of the front-end | tip work tool comprised by the part to match | combine is shown, (c) shows the front view of the front-end | tip work tool in which the operation | work part is comprised with the blade of the saw. The use condition figure of the bi-directional working tool which concerns on other embodiment is shown. (A) of the working tool for both perspective according to another embodiment shows a perspective view of a connecting portion in which the locking projection is formed of a flat plate, and (B) is provided with three locking projections. The side view of a connection part is shown, (c) shows the front view of the connection part by which the protrusion for latching is arrange | positioned asymmetrically centering on an axis line. (A) shows a front view of a conventional indirect hot wire working tool whose tip tool is a binding hitter, and (B) shows a front view of a conventional indirect hot wire working tool whose tip tool is a tongue. Show.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1, 1a, 1b, 1c ... Work tool for both near and near, 10 ... Insulation operation rod, 11 ... Main shaft (insulation rod), 12 ... Safety limit rod, 13 ... Draining rod, 14 ... Cap, 15 ... String, 20, 52 ... Connection portion (connection means) 21, 21 '... cylindrical insertion portion, 22, 22' ... locking projection, 23, 23 '... hole, 24, 24' ... elastic body (spring), 25, 25 '... Convex-shaped member, 26, 26 '... convex part, 27, 27' ... head part, 28 ... fixing screw, 30, 42 ... connection fitting (connection means), 31, 31 '... engagement cut, 32, 32' ... 1st notch part, 33, 33 '... 2nd notch part, 34, 34' ... 3rd notch part, 40 ... Tip work tool, 41 ... Working part, 43 ... Bolt, S, S '... Internal space

Claims (3)

Indirectly equipped with a tip work tool composed of a working part excluding a handle of a work tool provided with a handle, an insulating operation rod used for indirect hot-line work, and a foot rod connected and extended to the insulation operation rod It is a work tool for both near and near that can perform live work,
The distal end working tool includes connection means detachably connectable to the distal end portion of the insulating operation rod and the distal end portion of the adder bar at a base end portion thereof, and the adder bar is attached to the distal end portion of the distal end work tool. A connecting means that can be detachably connected to the base end portion of the distal end working tool and the base end portion of the insulating operating rod, and the insulating operating rod can be detachably connected to the base end portion of the tip working tool at the distal end portion thereof. A working tool for both near and far, capable of indirect live-line work, characterized in that it comprises a connecting means and a connecting means detachably connectable to the distal end of the adder bar at the base end.   The connecting means provided at the proximal end portion of the distal working tool and the connecting means provided at the proximal end portion of the insulating operating rod are the same, and the connecting means provided at the distal end portion of the insulating operating rod and the adding rod The work tool for both near and far according to claim 1, wherein the connecting means provided at the tip is the same.   The front / rear work tool according to claim 1 or 2, wherein the work part is attached to the front end side of the connection means in a replaceable manner.

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