JP4707616B2 - Rotary operation tool - Google Patents

Description

  The present invention includes a tip tool used when constructing an overhead electric wire installed on a power pole or the like and an edge operation rod (hot stick) for enabling an operator to operate the overhead electric wire separately from the overhead electric wire. More specifically, the present invention relates to a rotary operation tool provided with a fixing portion that fixes a base end portion of a tip tool and a rotary portion that fixes an insulating operation rod.

  In order to construct an overhead electric wire installed on a power pole or the like in a state where there is no power failure, that is, in a live line state, an operator must work away from the overhead electric wire, and therefore, an insulating operation rod is used. A common insulating operation rod rotating tool attached to such an insulating operation rod is disclosed in Patent Document 1.

  This common insulating operation rod rotating tool is provided with a short cylindrical body, a handle member, and a grip member so that the rotational torque and rotation speed of the insulating operation rod can be adjusted. At the upper end of the short cylindrical body, a connecting fitting to be coupled to the base of the insulating operation rod is provided. A handle member is fixed to the lower end portion of the short cylinder so as to be able to advance and retract in the horizontal direction. The gripping member is fitted around the short cylinder so as to be idle. In this common insulated operation rod rotating tool, the operator grasps the grip member and rotates the handle member in a state where the base of the insulation operation rod is coupled to the connection fitting provided at the upper end of the short cylindrical body. Thus, the insulating operating rod rotates with an appropriate torque and rotation speed.

  Further, Patent Document 2 discloses an indirect work device (bolt turning operation tool) for tightening a bolt of a holding fitting provided on a utility pole. This bolt turning operation tool is a biaxial rotation operation rod, and includes an insulation operation rod and a bolt turning tool.

  The insulating operation rod includes an operation rod main body, a drive shaft, and a handle. The operating rod body is provided with a bearing member and a gripping member. The bearing member is formed by integrally forming a base side bearing portion and a tip side bearing portion that are coaxially separated from each other, and a U-shaped coupling body that couples both bearing portions, and the both drive shafts pass through the drive shaft. An engagement hole is provided. And the said holding member is connected to the said base side bearing part.

  A gear housing portion is provided at a distal end portion where the gripping member is connected to the base side bearing portion. In the gear housing portion, the base end portion of the drive shaft passing through the engagement hole and the tip end portion of the handle are located. A meshing bevel gear is provided at the proximal end portion of the drive shaft and the distal end portion of the handle, and the drive shaft is rotated in the circumferential direction by rotating the handle.

  Moreover, the case main body is attached to the front part side bearing part of the said bearing member. In the case main body, the driven shaft and the working shaft are accommodated in a right angle direction, and both inner ends of the driven shaft and the working shaft are connected by meshing bevel gears. A box spanner that fits into the bolt head of the bolt is provided at the outer end of the work shaft.

  In order to use such a bolt turning operation tool, an operator fits a bolt head of a bolt into a box spanner, and while holding the grip portion with one hand, turns the handle with the other hand. Then, the drive shaft rotates in the circumferential direction and the bolt is tightened, whereby the overhead electric wire is fixed to the armrest. Further, since the worker is separated from the overhead electric wire by the insulating operation rod, the worker can work safely without electric shock.

JP-A-2005-245111 JP 2000-175321 A

  The biaxial rotary operation rod such as the bolt turning operation tool disclosed in Patent Document 2 is provided with an operation rod main body, a drive shaft, and a handle and is not only heavy but also long. The work of fixing to the arm of the electric wire is not easy, and the physical burden on the operator is large. This is not limited to a bolt-turning tool, but a PDC terminal stripper, a wire stripping tool, a wire cutting tool, an insulating tape winding tool, a wire gripping tool, or an electric resistance measuring device, etc. The same applies to the two-axis rotary operation rod to which the tip tool is attached.

  In addition, the common insulated operation rod rotating tool disclosed in Patent Document 1 is not provided with an operation rod body or a drive shaft, and is lighter than a biaxial rotation operation rod. The connecting fitting provided is coupled to the base end portion of the insulating operation rod, and the operator uses the handle member by rotating the handle member while grasping the grip member. Even if the tip of the insulation operation rod is hooked to the overhead wire, the common insulation operation rod rotating tool is attached to the insulation operation rod, so that the handle member operated by the operator becomes far from the overhead wire, and Stable work.

  Then, this invention makes it a subject to provide the rotary operation tool which reduced the physical burden of an operator and was able to work on an overhead electric wire in the stable state.

A rotational operation tool according to the present invention is a rotational operation tool for connecting a distal tool whose operation shaft passes through a proximal end portion in which a through hole is formed and an insulating operation rod, and the proximal end portion of the distal tool. A cylindrical fixing portion for fixing the operation shaft, a connector inserted in the fixing portion to fix the operation shaft at the tip, and a holder for fixing the insulating operation rod at the base end Are arranged in series, the outer periphery of the holder and the outer periphery of the base end side of the fixed part have the same outer diameter, and the front end side end surface of the holder and the base end side end surface of the fixed part are rotatable in the circumferential direction by a joint It is characterized by being connected to.

  According to this rotary operation tool, the fixed portion and the rotating portion are connected in a freely rotatable manner in the circumferential direction, and the fixed portion fixes the proximal end portion of the distal tool, whereby the proximal end portion of the distal tool is fixed. The rotation axis connector fixes the operation axis of the tip tool, and the holder of the rotation section fixes the insulation operation rod, so that the operation axis of the tip tool is interlocked with the circumferential rotation of the insulation operation rod. Rotate in the circumferential direction. Therefore, the operator can operate the tip tool connected to the rotary operation tool by rotating the insulating operation rod in the circumferential direction.

In the rotary operation tool according to the present invention, the joint preferably includes a bearing.

  According to this rotary operation tool, since the bearing is interposed on the joint surface between the fixed part and the rotating part, the rotating part smoothly rotates without generating a frictional force between the fixed part and the rotating part. Can be. In the rotary operation tool in which the base end side end face of the fixed part and the front end side end face of the rotating part holder face each other, a thrust bearing is interposed between the both end faces.

Further, the rotary operation tool according to the present invention, the joint is preferably provided with a ratchet mechanism.

  According to this rotary operation tool, since the fixed portion and the rotary portion are connected by the ratchet mechanism, the rotary portion rotates only in one direction, and the operation shaft fixed to the rotary portion also rotates only in one direction. . Therefore, this rotary operation tool can improve the usability of the tip tool operated so as to rotate the operation shaft only in one direction.

  In the rotary operation tool according to the present invention, it is preferable that the connector has a coupling hole into which the operation shaft is inserted.

  According to this rotary operation tool, since the coupling hole for inserting the operation shaft is formed in the connector, the operation shaft with a standardized outer diameter can be easily fixed to the connector, Can be improved.

  In the rotary operation tool according to the present invention, the tip tool may be an electric wire stripping tool, an electric wire cutting tool, an insulating tape winding tool, an electric wire gripping tool, a bolt turning operation tool, or an electric resistance measuring instrument.

  The rotary operation tool according to the present invention can be attached to a wide variety of tip tools, but as a tip tool having a base end portion that is fixed by forming a through hole and a rotating operation shaft, a wire stripping tool, an electric wire A cutting tool, a wire gripping tool, a bolt driver, or an electric resistance measuring instrument can be used.

  According to the present invention, the fixing portion that fixes the base end portion of the tip tool and the rotating body that fixes the operation shaft and the insulating operation rod of the tip tool are connected in a freely rotating manner in the circumferential direction, thereby reducing the weight. Therefore, not only the physical load of the worker who constructs the overhead electric wire is reduced, but also the operation can be simplified. Therefore, working efficiency can be improved by using the rotary operation tool according to the present invention.

  An embodiment of a rotary operation tool according to the present invention will be described with reference to FIGS. In this rotary operation tool, the fixed portion 10 and the rotary portion 20 are connected in series in order to connect the tip tool 110 and the insulating operation rod 120.

  The tip tool 110 includes, but is not limited to, a wire stripping tool, a wire cutting tool, an insulating tape winding tool, a wire gripping tool, a bolting operation tool, or an electric resistance measuring instrument. An operation shaft 112 passes through the inside. A head 113 that is hooked on the overhead electric wire is attached to the front side of the base end portion 111. In addition, a rotating member 114 whose direction is changed by the rotation of the operation shaft 112 is attached to the distal end portion of the operation shaft 112. The rotating member 114 is a cutter or the like if the tip tool 110 is a wire stripping tool or a wire cutting tool, a tape holder if it is an insulating tape winding tool, or a bolt head if it is a bolting operation tool. If it is a resistance measuring instrument, it is a measuring terminal. In addition, the operation shaft 112 of the tip tool 110 is formed in a quadrangular prism shape standardized to a predetermined size, and protrudes from the base end portion 111.

  Then, the base end portion 111 of the tip tool 110 is fixed to the fixing portion 10 of the main rotation operation tool, and the operation shaft 112 of the tip tool 110 is fixed to the rotation portion 20 of the main rotation operation tool. The fixing portion 10 has a cylindrical shape into which the proximal end portion 111 of the distal end tool 110 is inserted, and a lock screw 11 is attached to the distal end portion. That is, the distal end portion of the lock screw 11 protrudes from the inner peripheral surface of the cylindrical fixing portion 10 and presses the proximal end portion 111 of the distal end tool 110 inserted into the fixing portion 10. If the base end portion 111 of the tip tool 110 is cylindrical, the fixed portion 10 of the rotary operation tool is also formed in a cylindrical shape. The fixed portion 10 is also formed in a rectangular tube shape.

On the other hand, the rotating portion 20 is formed by integrally forming a bottomed cylindrical holder 21 and a connector 22 protruding coaxially from the bottom of the holder 21, and the connector 22 is inserted into the fixed portion 10. . The connector 22 is formed with a coupling hole 22a into which the operation shaft 112 is inserted. If the operation shaft 112 is a quadrangular prism, the coupling hole 22a is also formed in a square cross section.

  And the holder 21 is formed in the bottomed cylindrical shape which inserts the front-end | tip part of the insulation operating rod 120. As shown in FIG. Since the engagement protrusion 121 is projected from the distal end portion of the insulating operation rod 120, the holder 21 is formed with a bowl-shaped groove 21 a for locking the engagement protrusion 121.

  The outer periphery of the holder 21 and the outer periphery on the base end side of the fixing portion 10 have the same outer diameter, and the bottom portion of the holder 21 and the base end side end surface of the fixing portion 10 are connected by a joint 30. The joint 30 includes a connecting plate 31 that fixes the bottom portion of the holder 21 and a connecting plate 31 that fixes the proximal end surface of the fixing portion 10, and includes a thrust bearing and a ratchet mechanism (not shown). With the thrust bearing, the rotating part 20 can be smoothly rotated in a state where the fixed part 10 does not rotate. Further, the rotation part 20 can be rotated only in a certain direction by the ratchet mechanism.

  The rotary operation tool is configured as described above. Next, a usage method will be described. The operator hooks the head 113 of the tip tool 110 fixed to the fixing portion 10 of the rotary operation tool on the overhead wire 100 as shown in FIG. Since the rotary operation tool is lighter than the biaxial rotary operation rod as disclosed in Patent Document 2, the operator can easily hook the head 113 to the overhead wire 100. The worker grips the base end portion and the intermediate portion of the insulating operation rod 120 and rotates the insulating operation rod 120 in the circumferential direction, unlike the shared insulating operation rod rotating tool disclosed in Patent Document 1.

  Then, since the head 113 of the tip tool 110 is hooked to the overhead electric wire 100, the insulating operation rod 120 is not rotated without the rotation of the base end portion 111 to which the head 113 is attached and the fixed portion 10 of the rotary operation tool. The rotating unit 20 of the main rotation operation tool with the fixed position rotates. Accordingly, the operation shaft 112 of the tip tool 110 fixed to the connector 22 of the rotating unit 20 rotates in the circumferential direction.

  Since the rotating part 20 and the fixed part 10 are connected to be freely rotatable in the circumferential direction via a joint 30 provided with a thrust bearing, the rotating part 20 smoothly rotates in the circumferential direction. Further, since the joint 30 is provided with the ratchet mechanism, the operation shaft 112 rotates only in one direction. As the operating shaft 112 rotates in the circumferential direction, the rotating member 114 is operated, and the construction of the overhead electric wire 100 proceeds.

  When the work is completed, the tip tool 110 is removed from the overhead wire 100. Since this rotary operation tool is reduced in weight, the head 113 of the tip tool 110 can be easily detached from the overhead wire 100.

  In addition, this invention can be variously changed within the range of the invention specific matter described in the claim, without being limited to the said embodiment. For example, in the case where the operation shaft 112 may rotate in any direction like the tip tool 110 is an electric resistance measuring device, the ratchet mechanism may not be provided.

Further, when a pin is protruded from the operation shaft 112, the connector 22 provided in the rotating portion 20 may be formed with a groove for engaging this pin instead of the coupling hole 22a .

It is a front view which shows one Embodiment of the rotary operation tool which concerns on this invention. It is a section front view showing one embodiment which fixed a tip tool and an insulating operation stick to a rotary operation tool concerning the present invention. It is the schematic which shows the state which is using the rotary operation tool which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Fixed part 20 ... Rotating part 21 ... Holder 22 ... Connector 22a ... Coupling hole 110 ... Tip tool 111 ... Base end part 112 ... Operation shaft 120 ... Insulating operation rod

Claims (5)

It is a rotary operation tool that connects a tip tool through which an operation shaft passes through a base end portion in which a through hole is formed, and an insulating operation rod,
A cylindrical fixing portion for fixing the base end portion of the tip tool, and a connector inserted into the fixing portion to fix the operation shaft at the tip end, and a holder for fixing the insulating operation rod at the base end The provided shaft-shaped rotating part is arranged in series, the outer periphery of the holder and the outer periphery of the base end side of the fixing part have the same outer diameter, and the tip end side end face of the holder and the base end side end face of the fixing part are A rotating operation tool characterized by being connected in a circumferentially rotatable manner by a joint . The joint is rotating operation tool of claim 1, characterized in that it comprises a bearing. The joint is rotating operation tool of claim 1 or 2, characterized in that it comprises a ratchet mechanism.   The rotary operation tool according to any one of claims 1 to 3, wherein the connector is formed with a coupling hole into which the operation shaft is inserted.   5. The tool according to claim 1, wherein the tip tool is a wire stripping tool, a wire cutting tool, an insulating tape winding tool, a wire gripping tool, a bolt turning operation tool, or an electric resistance measuring instrument. The described rotary operation tool.

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