WO2017208917A1 - Gripping tool for indirect hot wire construction - Google Patents

Gripping tool for indirect hot wire construction Download PDF

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Publication number
WO2017208917A1
WO2017208917A1 PCT/JP2017/019305 JP2017019305W WO2017208917A1 WO 2017208917 A1 WO2017208917 A1 WO 2017208917A1 JP 2017019305 W JP2017019305 W JP 2017019305W WO 2017208917 A1 WO2017208917 A1 WO 2017208917A1
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Prior art keywords
gripping
movable
fixed
grip
contact
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PCT/JP2017/019305
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French (fr)
Japanese (ja)
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寛大 織川
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株式会社永木精機
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Application filed by 株式会社永木精機 filed Critical 株式会社永木精機
Priority to JP2018520828A priority Critical patent/JP6791958B2/en
Priority to KR1020187033122A priority patent/KR102334725B1/en
Priority to CN201780028429.3A priority patent/CN109075543B/en
Publication of WO2017208917A1 publication Critical patent/WO2017208917A1/en

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/12Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B9/00Hand-held gripping tools other than those covered by group B25B7/00
    • B25B9/02Hand-held gripping tools other than those covered by group B25B7/00 without sliding or pivotal connections, e.g. tweezers, onepiece tongs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J1/00Manipulators positioned in space by hand
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J1/00Manipulators positioned in space by hand
    • B25J1/04Manipulators positioned in space by hand rigid, e.g. shelf-reachers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Electric Cable Installation (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Abstract

A gripping tool for indirect hot wire construction is provided which enables gripping a linear body, plate body or cloth-like body having a diameter or thickness of 2-5mm, reliably without injury. This gripping tool 10 for indirect hot wire construction is characterized by being provided with an insulating operation rod 14, a gripping unit 12 comprising a movable gripping part 20 and a fixed gripping part 22, an auxiliary insulating operation rod 24, a gripping operation unit 26 and a pivot 30, wherein the fixed gripping part 22 and the movable gripping part 20 are provided with a base part 22d, 20d, an arm part 22b, 20b and a contact part 22a, 20a; both the contact parts 22a, 20a are configured to have multiple ridges W provided therein and such that, when an electric wire 84 is gripped by the contact portion 22a of the fixed gripping part 22 and the contact portion 20a of the movable gripping part 20, said contact parts 22a, 20a grip the electric wire 84 leaving an interval that is the same as the diameter of the gripped electric wire 84 or close to the diameter of the gripped electric wire 84.

Description

間接活線工事用把持工具Gripping tool for indirect hot wire construction
 本発明は、間接活線工事用把持工具に関する。特に、無停電状態の高圧配電線を間接的に活線作業できる間接活線工事用把持工具であって、電線等を把持できる間接活線工事用把持工具に関する。 The present invention relates to a gripping tool for indirect hot wire construction. In particular, the present invention relates to a gripping tool for indirect hot-wire work that can indirectly hot-work a high-voltage distribution line in an uninterruptible state, and relates to a gripping tool for indirect hot-wire work that can grip an electric wire or the like.
 従来、高圧配電線を無停電で配電工事を行う活線作業には、直接活線工法と間接活線工法の二通りがある。直接活線工法は、作業者が高圧ゴム手袋等の保護具を着用して、通電中の高圧配電線に直接触れて配電工事を行うものであるが、作業者の感電事故発生の危険があった。一方、間接活線工法は、作業者が間接活線工事用把持工具を用いて、通電中の高圧配電線に直接触れることなく配電工事を行うものである。 Conventionally, there are two types of hot-line work in which high-voltage distribution lines are distributed without power interruption: direct hot-wire method and indirect hot-wire method. In the direct hot wire construction method, workers wear protective equipment such as high-pressure rubber gloves and directly touch the high-voltage distribution lines that are energized to perform power distribution work. However, there is a risk of electric shock accidents. It was. On the other hand, the indirect hot wire method is a method in which an operator uses a holding tool for indirect hot wire work to perform power distribution work without directly touching a high-voltage power distribution line that is energized.
 一般に、間接活線工事用把持工具には、絶縁ヤットコといわれる間接活線工事用把持工具がある。この絶縁ヤットコは、先端部に取り付けた先端工具の交換ができない構造となっている。即ち、絶縁ヤットコは、1つの専用工具であり、電線を把持することを主な用途とする工具である。絶縁ヤットコは、比較的太い電線を把持する作業に使用されることが通常であるが、電線に限らず鳥の巣や蛇等の多様な把持対象物にも用いられる。さらに、絶縁ヤットコは、活線工事に用いられる掴線器の周辺作業に使用される他、比較的細い電線を把持する作業に使用されることもある。 Generally, indirect hot-line work gripping tools include an indirect hot-line work gripping tool called an insulating Yatco. This insulating Yatco has a structure in which the tip tool attached to the tip cannot be replaced. That is, the insulating Yatco is one dedicated tool, and is a tool whose main application is to grip an electric wire. Insulating yarns are usually used for gripping relatively thick electric wires, but are not limited to electric wires and are also used for various objects to be grasped such as bird's nests and snakes. Furthermore, the insulating Yatco is used not only for the work around the gripper used for the hot wire work but also for the work of gripping relatively thin electric wires.
特開平7-298436号公報Japanese Patent Laid-Open No. 7-298436
 従来、作業者は、間接活線工事用把持工具を用いて高圧配電線の引下げ線の切断作業等をする場合において、多様な対象物を把持する可能性がある場合には、把持すべき対象物に応じて作業ができるよう、複数の絶縁ヤットコ又は絶縁クイック等の間接活線工事用把持工具を用意する必要があった。
 しかし、絶縁ヤットコの把持腕の2つの先端部は、把持腕を完全に閉じたときに当接するようにその角度を定められていることから、線状体、板状体又は布状体を従来の絶縁ヤットコ(例えば、特許文献1記載のホットハンド)で把持しようとした場合、先端部間が回転軸から外側に向かって開いた角度となる。これにより、把持対象物内において、各当接部から把持対象物へ作用する圧力が相殺せず、当接部の長手方向への力が発生する。したがって、把持対象物が把持腕の先端部から内側又は外側に脱落するおそれがあった。
 また、把持腕の先端部における把持対象物との当接部は複数の突条形状に形成されていることが多いが、突条の間隔、形状又は位置によっては、把持対象物にかかる圧力が過大となり、把持対象物が損傷するおそれがあった。例えば、把持対象物が電線である場合、従来の絶縁ヤットコは、電線の被覆を剥がしてしまうおそれや切断してしまうおそれがあった。
Conventionally, when a worker performs a cutting operation of a pull-down line of a high-voltage distribution line using a gripping tool for indirect hot wire construction, if there is a possibility of gripping various objects, the object to be gripped In order to be able to work in accordance with the object, it was necessary to prepare a plurality of gripping tools for indirect hot-wire work such as an insulating jacket or insulating quick.
However, since the two tip portions of the gripping arm of the insulating Yatco are angled so as to contact when the gripping arm is completely closed, a linear body, a plate-shaped body, or a cloth-shaped body is conventionally used. When it is going to hold | grip with an insulating Yatco (for example, hot hand of patent document 1), it becomes the angle which opened between the front-end | tip parts toward the outer side from the rotating shaft. As a result, in the gripping object, the pressure acting on the gripping object from each contact portion does not cancel out, and a force in the longitudinal direction of the contact portion is generated. Therefore, there is a possibility that the object to be grasped may fall out from the tip end portion of the grasping arm to the inside or the outside.
In addition, the contact portion of the grip arm with the gripping object is often formed in a plurality of ridge shapes, but depending on the interval, shape, or position of the ridges, the pressure applied to the gripping object may be increased. There was a risk that the object to be grasped would be damaged. For example, when the object to be grasped is an electric wire, the conventional insulating jacket has a risk of peeling off the coating of the electric wire or cutting it.
 本発明は、このような問題を解決するためになされたもので、特に直径又は厚みが2mm~5mmである線状体、板状体又は布状体を、確実に損傷することなく把持することを可能とする間接活線工事用把持工具を提供することを目的とする。 The present invention has been made to solve such problems, and in particular, grips a linear body, a plate-shaped body, or a cloth-shaped body having a diameter or thickness of 2 mm to 5 mm without being damaged. An object of the present invention is to provide a gripping tool for indirect hot-line construction that makes it possible.
 この発明の請求項1にかかる間接活線工事用把持工具は、電線と人体との間に安全を保つための安全距離以上の長さを有する絶縁性の絶縁操作棒と、絶縁操作棒の軸線方向の先端に設けられ、絶縁操作棒に設けられた把持操作部の操作によって接離動作される可動把持部と固定把持部とを有する把持部と、先端に接続した把持部の接離動作を補助する絶縁性の補助絶縁操作棒と、絶縁操作棒の基端部近傍に取り付けられ補助絶縁操作棒の基端部に回動可能に接続し梃子の作用で補助絶縁操作棒をその長さ方向に往復移動させて把持部を操作する把持操作部と、固定把持部と可動把持部とを連結するための枢軸と、を備える間接活線工事用把持工具であって、把持部の固定把持部及び可動把持部は、基部と、絶縁操作棒の軸線方向を含む面上で外側に凸の略円弧状に形成されたアーム部と、アーム部の先端に接続される当接部と、を備え、固定把持部は、その基部で絶縁操作棒の先端に接続され、可動把持部は、その基部で補助絶縁操作棒の先端に回動可能に連結され、アーム部の基端部近傍で固定把持部の基部上方に枢軸を介して回動可能に連結され、把持操作部による操作に応じて、固定把持部に向かって回動可能であり、固定把持部及び可動把持部の当接部は、ともに、絶縁操作棒の軸線方向と交差する方向に延びる複数の突条が平行に並列するように設けられており、固定把持部及び可動把持部の複数の突条の高さは略同一であり、固定把持部の突条の稜線と可動把持部の突条の稜線とは対向し、固定把持部の当接部と可動把持部の当接部とが閉じたとき、基部とは反対側の先端側において当接し、且つ、固定把持部の当接部における突条の頂点と可動把持部の当接部における突条の頂点とは、基部に向かうに従って離間するように構成され、固定把持部の当接部と可動把持部の当接部とが電線を把持したとき、把持された電線の径と同一又は把持された電線の径に近い間隔をおいて電線を把持するように構成されたことを特徴とする。
 この発明の請求項2にかかる間接活線工事用把持工具は、固定把持部及び可動把持部の各々の当接部における突条の並列する方向の間隔が2mmであることを特徴とする。
 この発明の請求項3にかかる間接活線工事用把持工具は、固定把持部及び可動把持部の各々の当接部における複数の突条の並列する方向の断面形状が正弦波形であるように形成されていることを特徴とする。
 この発明の請求項4にかかる間接活線工事用把持工具は、固定把持部及び可動把持部の各々の当接部における複数の突条が、その並列する方向においてその先端の稜線を互いに突き合うような位置に設けられていることを特徴とする。
A gripping tool for indirect hot wire construction according to claim 1 of the present invention includes an insulating insulating operation rod having a length equal to or longer than a safe distance for maintaining safety between an electric wire and a human body, and an axis of the insulating operation rod. A gripping part having a movable gripping part and a fixed gripping part, which are provided at the distal end of the direction and are moved toward and away by an operation of the gripping operation part provided on the insulating operation rod, and a gripping part connected to the tip end Auxiliary auxiliary insulation operating rod to be supported, and attached to the base end of the insulation operation rod in the vicinity of the base end of the auxiliary insulation operation rod. A gripping tool for indirect hot-line construction comprising a gripping operation unit that reciprocally moves the gripping part to operate the gripping part, and a pivot for connecting the fixed gripping part and the movable gripping part. And the movable gripping portion on the surface including the base portion and the axial direction of the insulating operation rod. An arm portion formed in a substantially arc shape convex to the side, and an abutting portion connected to the tip of the arm portion, and the fixed grip portion is connected to the tip of the insulating operation rod at its base portion, and is movable gripping The part is pivotally connected to the tip of the auxiliary insulation operating rod at the base, and is pivotally connected to the upper part of the fixed gripping part via the pivot near the base end of the arm part. Depending on the operation, it can be turned toward the fixed gripping part, and the abutment part of the fixed gripping part and the movable gripping part are both parallel with a plurality of protrusions extending in the direction intersecting the axial direction of the insulating operation rod. The height of the plurality of ridges of the fixed grip portion and the movable grip portion is substantially the same, and the ridge line of the fixed grip portion and the ridge line of the movable grip portion are When the abutting part of the fixed gripping part and the abutting part of the movable gripping part are closed, the opposite side of the base part The apex of the ridge at the abutting portion of the fixed gripping portion and the apex of the ridge at the abutting portion of the movable gripping portion are configured to be separated from each other toward the base, When the contact portion of the movable gripping portion and the contact portion of the movable gripping portion grip the electric wire, the electric wire is gripped at an interval that is the same as the gripped wire diameter or close to the gripped wire diameter. It is characterized by that.
The holding tool for indirect hot wire construction according to claim 2 of the present invention is characterized in that the interval in the direction in which the ridges are juxtaposed at the contact portions of the fixed holding portion and the movable holding portion is 2 mm.
A gripping tool for indirect hot-wire work according to claim 3 of the present invention is formed so that the cross-sectional shape in the direction in which a plurality of ridges are arranged in parallel in each contact portion of the fixed gripping portion and the movable gripping portion is a sine waveform. It is characterized by being.
In the gripping tool for indirect hot-wire work according to claim 4 of the present invention, the plurality of ridges in each contact portion of the fixed gripping portion and the movable gripping portion abut each other on the ridgeline at the tip in the parallel direction. It is provided in such a position.
 請求項1に係る間接活線工事用把持工具によれば、直径又は厚みが2mm~5mmである把持対象物を固定把持部及び可動把持部が把持したときには、固定把持部及び可動把持部の当接部における複数の突条の稜線が形成する平面は、略平行となる。これにより、把持対象物は、各当接部から、互いに相殺する圧力のみを受け、当接部の長手方向に移動させるような力は受けない。したがって、直径又は厚みが2mm~5mmである把持対象物が把持部の内側又は外側に脱落するおそれはない。
 請求項2の発明に係る間接活線工事用把持工具によれば、固定把持部及び可動把持部の各当接部における突条の並列する方向の間隔は、2mmである。これにより、間接活線工事用把持工具は、直径又は厚みが2mm~5mmである把持対象物を各当接部間に把持した時に、把持対象物を損傷するおそれがない。つまり、前記間隔が2mmより広い場合には、把持対象物に対して当接する突条が少数となり、突条からの圧力は微小領域においてのみ把持対象物に作用することとなる。したがって、把持対象物の狭い領域に圧力が集中し、その結果、把持対象物が損傷するおそれがある。例えば、把持対象物が直径2mmの電線であり前記間隔が3mmである場合には、電線と当接する突条は、いずれかの当接部側で1点となり、電線の被覆を剥がしてしまうおそれ又は電線を切断してしまうおそれがある。よって、前記間隔が2mmであれば、把持対象物が直径2mmの電線であっても、電線と当接する突条は、いずれかの当接部側で2点となり、電線を損傷するおそれがない。一方、前記間隔が2mmより狭い場合には、突条間に異物が詰まりやすくなり、突条が有する摺動防止の機能が果たせなくなるおそれがある。また、前記間隔が狭くなればなるほど、突条の数が多くなることにつながり、加工の困難性が増すことにつながる。
 請求項3の発明に係る間接活線工事用把持工具によれば、固定把持部及び可動把持部の各当接部における複数の突条の並列する方向の断面形状は、鋭く尖っている形状ではなく、正弦波形である。これにより、直径又は厚みが2mm~5mmである把持対象物を各当接部が把持した時に、把持対象物が損傷するおそれがない。つまり、突条の先端部が鋭い形状である場合は、突条からの圧力は微小領域においてのみ把持対象物に作用することとなる。したがって、把持対象物の狭い領域に圧力が集中し、その結果、把持対象物が損傷するおそれがある。例えば、把持対象物が電線である場合には、鋭い形状である突条の先端部は、電線の被覆を剥がしてしまうおそれ又は電線を切断してしまうおそれがある。一方、複数の突条の断面形状が正弦波形であれば、把持対象物に作用する圧力が分散し、把持対象物が損傷するおそれがなくなる。
 請求項4の発明に係る間接活線工事用把持工具によれば、固定把持部及び可動把持部の各当接部における複数の突条は、その並列する方向においてその先端の稜線を互いに突き合う様な位置に設けられている。これにより、直径又は厚みが2mm~5mmである把持対象物を各当接部が把持した時に、把持対象物が損傷するおそれがない。つまり、各当接部の突条が歯合するような位置に各当接部に設けられている場合は、突条は、せん断するような圧力を把持対象物に作用する。本発明は直径又は厚みが2mm~5mmである線状体、板状体又は布状体を確実に損傷することなく把持できることを特に目的とするものであるが、突条が歯合するような位置に設けられている場合は、このような細い又は薄い把持対象物は、容易にせん断されるおそれがある。一方、前記突条が、その並列する方向においてその稜線を互いに突き合うような位置で各当接部に設けられている場合は、突条はせん断力を把持対象物に作用することはない。
According to the gripping tool for indirect hot wire construction according to claim 1, when the fixed gripping part and the movable gripping part grip a gripping object having a diameter or thickness of 2 mm to 5 mm, The plane formed by the ridge lines of the plurality of protrusions at the contact portion is substantially parallel. As a result, the gripping object receives only pressures that cancel each other out from each contact part, and does not receive a force that moves the object in the longitudinal direction of the contact part. Therefore, there is no possibility that the object to be grasped having a diameter or thickness of 2 mm to 5 mm falls off inside or outside the grasping portion.
According to the gripping tool for indirect hot-wire work according to the invention of claim 2, the interval in the direction in which the ridges are juxtaposed at each contact portion of the fixed gripping portion and the movable gripping portion is 2 mm. As a result, the gripping tool for indirect hot-line work does not damage the gripping object when the gripping object having a diameter or thickness of 2 mm to 5 mm is gripped between the contact portions. That is, when the interval is wider than 2 mm, the number of protrusions that come into contact with the object to be grasped is small, and the pressure from the protrusions acts on the object to be grasped only in a minute region. Therefore, pressure concentrates on a narrow area of the gripping object, and as a result, the gripping object may be damaged. For example, when the object to be grasped is an electric wire having a diameter of 2 mm and the interval is 3 mm, the protrusion that contacts the electric wire becomes one point on either abutting portion side, and the covering of the electric wire may be peeled off. Or there is a possibility of cutting the electric wire. Therefore, if the distance is 2 mm, even if the object to be grasped is an electric wire having a diameter of 2 mm, the ridges that come into contact with the electric wire are two points on either contact portion side, and there is no possibility of damaging the electric wire. . On the other hand, when the interval is narrower than 2 mm, foreign matter is likely to be clogged between the protrusions, and the function of preventing the sliding of the protrusions may not be performed. In addition, the narrower the interval, the greater the number of protrusions and the greater the difficulty of processing.
According to the gripping tool for indirect hot-wire construction according to the invention of claim 3, the cross-sectional shape in the direction in which the plurality of protrusions are arranged in parallel in each contact portion of the fixed gripping portion and the movable gripping portion is a sharply sharp shape. Not a sine waveform. Thus, there is no possibility that the gripping object is damaged when each contact portion grips the gripping object having a diameter or thickness of 2 mm to 5 mm. That is, when the tip of the ridge has a sharp shape, the pressure from the ridge acts on the object to be grasped only in a minute region. Therefore, pressure concentrates on a narrow area of the gripping object, and as a result, the gripping object may be damaged. For example, when the object to be grasped is an electric wire, the tip of the ridge having a sharp shape may peel off the coating of the electric wire or cut the electric wire. On the other hand, if the cross-sectional shapes of the plurality of protrusions are sinusoidal, the pressure acting on the grasped object is dispersed, and there is no possibility that the grasped object is damaged.
According to the gripping tool for indirect hot wire construction according to the invention of claim 4, the plurality of protrusions in each contact portion of the fixed gripping portion and the movable gripping portion abut each other on the ridgeline at the tip in the parallel direction. It is provided in various positions. Thus, there is no possibility that the gripping object is damaged when each contact portion grips the gripping object having a diameter or thickness of 2 mm to 5 mm. That is, when each contact part is provided at a position where the protrusions of the contact parts mesh with each other, the protrusions apply a shearing pressure to the grasped object. The present invention has a particular object of reliably gripping a linear body, plate-shaped body, or cloth-shaped body having a diameter or thickness of 2 mm to 5 mm without damaging it. When provided in a position, such a thin or thin object to be gripped may be easily sheared. On the other hand, when the ridges are provided at the contact portions at positions where the ridge lines abut each other in the parallel direction, the ridges do not apply a shearing force to the grasped object.
 請求項1の発明に係る間接活線工事用把持工具によれば、直径又は厚みが2mm~5mmである線状体、板状体又は布状体を、確実に把持することができる。
 請求項2の発明に係る間接活線工事用把持工具によれば、直径又は厚みが2mm~5mmである線状体、板状体又は布状体を、損傷することなく把持することができる。
 請求項3の発明に係る間接活線工事用把持工具によれば、直径又は厚みが2mm~5mmである線状体、板状体又は布状体を、損傷することなく把持することができる。
 請求項4の発明に係る間接活線工事用把持工具によれば、直径又は厚みが2mm~5mmである線状体、板状体又は布状体を、損傷することなく把持することができる。
According to the holding tool for indirect hot wire construction according to the invention of claim 1, a linear body, plate-like body or cloth-like body having a diameter or thickness of 2 mm to 5 mm can be reliably gripped.
According to the gripping tool for indirect hot wire construction according to the invention of claim 2, it is possible to grip a linear body, plate-shaped body, or cloth-shaped body having a diameter or thickness of 2 mm to 5 mm without being damaged.
According to the gripping tool for indirect hot-wire work according to the invention of claim 3, it is possible to grip a linear body, plate-shaped body, or cloth-shaped body having a diameter or thickness of 2 mm to 5 mm without being damaged.
According to the gripping tool for indirect hot-wire work according to the invention of claim 4, it is possible to grip a linear body, plate-shaped body, or cloth-shaped body having a diameter or thickness of 2 mm to 5 mm without being damaged.
 この発明の上述の目的、その他の目的、特徴及び利点は、図面を参照して行う以下の発明を実施するための形態の説明から一層明らかとなろう。 The above-described object, other objects, features, and advantages of the present invention will become more apparent from the following description of embodiments for carrying out the invention with reference to the drawings.
本発明に係る間接活線工事用把持工具を示す正面図解図である。It is a front illustration solution figure which shows the holding tool for indirect hot wire construction which concerns on this invention. 図1の間接活線工事用把持工具の把持部が閉じている状態での把持部付近の拡大正面図解図である。It is an enlarged front view solution figure of the holding part vicinity in the state where the holding part of the holding tool for indirect hot wire construction of FIG. 1 is closed. (A)は、間接活線工事用把持工具の固定把持部の拡大斜視図解図であり、(B)は、間接活線工事用把持工具の可動把持部の拡大斜視図解図である。(A) is an expansion perspective view solution figure of the fixed holding part of the holding tool for indirect hot wire construction, (B) is an expansion perspective view solution figure of the movable holding part of the holding tool for indirect hot wire work. 間接活線工事用把持工具の把持部が把持対象物(直径2mm~5mmの電線)を把持している状態を示した、把持部付近の拡大正面図解図である。FIG. 5 is an enlarged front view solution view in the vicinity of the gripping portion showing a state where the gripping portion of the gripping tool for indirect hot wire construction is gripping a gripping object (an electric wire having a diameter of 2 mm to 5 mm).
 本発明の実施形態に係る間接活線工事用把持工具を図面に基づいて説明する。以下では、絶縁操作棒14の軸線方向を上下方向と、絶縁操作棒14の中心軸線から離れる向きを外向きと定義する。なお、以下に示す実施の形態は本発明を具体化した一例であって、本発明の技術的範囲を限定するものではない。 A gripping tool for indirect hot wire construction according to an embodiment of the present invention will be described with reference to the drawings. Hereinafter, the axial direction of the insulating operation rod 14 is defined as the vertical direction, and the direction away from the central axis of the insulating operation rod 14 is defined as the outward direction. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.
 図1に示した間接活線工事用把持工具10は、把持対象物84を把持する把持部12と、先端部に把持部12が取り付けられた絶縁操作棒14と、把持操作部26による操作を把持部12に伝達する補助絶縁操作棒24と、絶縁操作棒14の基端部近傍に設けられた把持操作部26と、枢軸30と、を有する。把持操作部26は把持部12の接離動作を操作する。以下、各構成要素について詳述する。 The indirect hot-line work gripping tool 10 shown in FIG. 1 is operated by a gripping part 12 that grips a gripping object 84, an insulating operation rod 14 having the gripping part 12 attached to the tip, and a gripping operation part 26. The auxiliary insulation operating rod 24 that transmits to the gripping portion 12, the gripping operation portion 26 provided in the vicinity of the base end portion of the insulation operating rod 14, and the pivot 30. The grip operation unit 26 operates the contact / separation operation of the grip unit 12. Hereinafter, each component will be described in detail.
 絶縁操作棒14は、絶縁性の材料で構成された円柱状の棒状部材であり、電線と人体との間に安全を保つための安全距離以上の長さを有する。絶縁操作棒14は、沿面放電や漏電を避けるために、雨切16や鍔18が設けられている。前述のように、絶縁操作棒14の先端部には、把持部12が取り付けられており、基端部近傍には把持操作部26が設けられている。作業者は、この絶縁操作棒14の基端部を握って、先端部に取り付けられた把持部12を作業位置に位置決めし、把持操作部26により把持部12の接離操作を行う。 The insulating operation rod 14 is a cylindrical rod-shaped member made of an insulating material, and has a length equal to or longer than a safe distance for keeping safety between the electric wire and the human body. Insulation operating rod 14 is provided with rain gutter 16 and eaves 18 in order to avoid creeping discharge and leakage. As described above, the grip portion 12 is attached to the distal end portion of the insulating operation rod 14, and the grip operation portion 26 is provided in the vicinity of the base end portion. The operator grasps the proximal end portion of the insulating operation rod 14 to position the grip portion 12 attached to the distal end portion at the work position, and performs the contact / separation operation of the grip portion 12 by the grip operation portion 26.
 補助絶縁操作棒24は、絶縁操作棒14と同じ材質で構成され、同様に漏電、沿面放電を防止するため雨切16が設けられている。補助絶縁操作棒24の先端部は、後述する可動把持部20の基部20dと回動可能に連結している。補助絶縁操作棒24の基端部は、後述する把持操作部26の作動片26eと回動可能に連結している。 The auxiliary insulation operation rod 24 is made of the same material as the insulation operation rod 14, and is similarly provided with a rain drain 16 to prevent leakage and creeping discharge. The distal end portion of the auxiliary insulating operation rod 24 is rotatably connected to a base portion 20d of the movable gripping portion 20 described later. A base end portion of the auxiliary insulating operation rod 24 is rotatably connected to an operating piece 26e of a grip operation unit 26 described later.
 把持部12は、可動把持部20と固定把持部22とを有する。
 図3(A)に示すように、固定把持部22は、穴22eと、基部22dと、孔22cと、アーム部22bと、当接部22aと、を有する。固定把持部22は、硬質材料、例えば金属材料で形成されている。固定把持部22の基部22dは絶縁操作棒14の先端部に嵌合され固定されている。固定把持部22の基部22dに、略上向きに延びかつ外向きに凸の略円弧状に全体形状を形成されたアーム部22bが接続されている。アーム部22bは、第1曲線部22b1と、第2曲線部22b2と、第3曲線部22b3と、を有する。第1曲線部22b1は、基部22dに略上向きに接続されている。第2曲線部22b2は、第1曲線部22b1から略上向きかつ外向きに、滑らかに接続されている。第3曲線部22b3は、第2曲線部22b2から略上向きかつ内向きに、滑らかに接続されている。さらに、把持対象物84と当接する当接部22aが、アーム部22bの第3曲線部22b3から略上向きに接続されている。当接部22aには、把持対象物84が摺動しないように機能する突条であって、後述する枢軸30の軸線方向と同一方向に延びる複数の突条Wが基部22d側から平行に並列するように設けられている。固定把持部22の当接部22aの複数の突条Wの高さは略同一である。固定把持部22は、基部22dから、アーム部22bの第1曲線部22b1、第2曲線部22b2、第3曲線部22b3、そして当接部22aにかけて、枢軸30の軸線方向に対して直交する方向に、徐々に幅が狭くなるように、全体形状が形成されている。アーム部22bの第1曲線部22b1には、枢軸30を通すための孔22cが形成されている。アーム部22bの第1曲線部22b1から、第2曲線部22b2、及び第3曲線部22b3の中程まで、連続して、後述する可動把持部のアーム部20bを通すための穴22eが、枢軸30の軸線と直交する方向に形成されている。
The grip part 12 includes a movable grip part 20 and a fixed grip part 22.
As shown in FIG. 3A, the fixed gripping portion 22 has a hole 22e, a base portion 22d, a hole 22c, an arm portion 22b, and a contact portion 22a. The fixed grip portion 22 is formed of a hard material, for example, a metal material. The base 22 d of the fixed grip 22 is fitted and fixed to the tip of the insulating operation rod 14. Connected to the base portion 22d of the fixed grip portion 22 is an arm portion 22b that is formed in a substantially arc shape that extends substantially upward and protrudes outward. The arm portion 22b includes a first curved portion 22b1, a second curved portion 22b2, and a third curved portion 22b3. The first curved portion 22b1 is connected substantially upward to the base portion 22d. The second curved portion 22b2 is smoothly connected substantially upward and outward from the first curved portion 22b1. The third curved portion 22b3 is smoothly connected to the second curved portion 22b2 substantially upward and inward. Furthermore, the contact portion 22a that contacts the grasped object 84 is connected substantially upward from the third curved portion 22b3 of the arm portion 22b. The abutment portion 22a is a ridge that functions so that the object to be grasped 84 does not slide, and a plurality of ridges W extending in the same direction as the axial direction of the pivot 30 described later are arranged in parallel from the base portion 22d side. It is provided to do. The heights of the plurality of protrusions W of the contact portion 22a of the fixed grip portion 22 are substantially the same. The fixed gripping portion 22 extends from the base portion 22d to the first curved portion 22b1, the second curved portion 22b2, the third curved portion 22b3, and the contact portion 22a of the arm portion 22b, and a direction orthogonal to the axial direction of the pivot 30. In addition, the overall shape is formed so that the width gradually decreases. A hole 22c for passing the pivot 30 is formed in the first curved portion 22b1 of the arm portion 22b. A hole 22e for passing the arm portion 20b of the movable gripping portion to be described later continuously from the first curved portion 22b1 of the arm portion 22b to the middle of the second curved portion 22b2 and the third curved portion 22b3 is a pivot. It is formed in a direction orthogonal to 30 axes.
 図3(B)に示すように、可動把持部20は、基部20dと、孔20cと、アーム部20bと、当接部22aと、を有する。可動把持部20は、固定把持部22と同様に硬質材料、例えば金属材料で形成されている。可動把持部20の基部20dから、略上向きに延びかつ外向きに凸の略円弧状に全体形状を形成されたアーム部20bが接続されている。アーム部20bは、基部20d近傍において、枢軸30を通すための孔20cが形成されている。さらに、把持対象物84と当接する当接部20aが、可動把持部20のアーム部20bの先端から、略上向きに接続されている。当接部20aには、把持対象物84が摺動しないように機能する突条であって、枢軸30の軸線方向と同一方向に延びる複数の突条Wが基部20d側から平行に並列するように設けられている。可動把持部20の当接部20aの複数の突条Wの高さは略同一である。可動把持部20は、枢軸30の軸線方向に対して直交する方向に、基部20dから孔20cにかけては徐々に幅が広くなり、孔20cから、アーム部20b、そして当接部20aにかけては徐々に幅が狭くなるように、全体形状が形成されている。アーム部20bは、枢軸30の軸線方向に、可動把持部20の軽量化のための複数の穴が形成されている。また、アーム部20bは、枢軸30の軸線方向に、固定把持部22のアーム部22bに形成された穴22eに可動把持部20を通すため、穴22eの幅と略同一の幅で、狭く形成されている。
 可動把持部20は、基部20dにおいて補助絶縁操作棒24の先端部と回動可能に連結されている。可動把持部20は、孔20cにおいて枢軸30を介して固定把持部22のアーム部22bの第1曲線部22b1と回動可能に連結されている。可動把持部20は、把持操作部26の操作レバー26aの動きに応じて、枢軸30の軸心を中心として矢印B方向に回動可能となっている。可動把持部20が軽量化されることにより、可動把持部20の慣性質量が小さくなり、操作レバー26aの操作のために必要となる力が軽減されることになる。
As shown in FIG. 3B, the movable gripping portion 20 includes a base portion 20d, a hole 20c, an arm portion 20b, and a contact portion 22a. The movable grip 20 is formed of a hard material, for example, a metal material, like the fixed grip 22. An arm portion 20b is connected from the base portion 20d of the movable gripping portion 20 and has an overall shape formed in a substantially arc shape extending substantially upward and protruding outward. The arm portion 20b has a hole 20c through which the pivot 30 is passed in the vicinity of the base portion 20d. Further, the abutting portion 20 a that abuts on the grasped object 84 is connected substantially upward from the tip of the arm portion 20 b of the movable grasping portion 20. The abutment portion 20a is a ridge that functions so that the gripping object 84 does not slide, and a plurality of ridges W extending in the same direction as the axial direction of the pivot 30 are arranged in parallel from the base portion 20d side. Is provided. The height of the plurality of protrusions W of the contact portion 20a of the movable gripping portion 20 is substantially the same. The movable gripping portion 20 gradually increases in width from the base portion 20d to the hole 20c in a direction orthogonal to the axial direction of the pivot 30, and gradually from the hole 20c to the arm portion 20b and the contact portion 20a. The overall shape is formed so that the width becomes narrower. The arm portion 20 b has a plurality of holes for reducing the weight of the movable gripping portion 20 in the axial direction of the pivot 30. In addition, the arm portion 20b is formed narrow in the axial direction of the pivot 30 so that the movable grip portion 20 is passed through the hole 22e formed in the arm portion 22b of the fixed grip portion 22, so that the width is substantially the same as the width of the hole 22e. Has been.
The movable gripping portion 20 is rotatably connected to the distal end portion of the auxiliary insulating operation rod 24 at the base portion 20d. The movable gripping portion 20 is rotatably connected to the first curved portion 22b1 of the arm portion 22b of the fixed gripping portion 22 through the pivot 30 in the hole 20c. The movable gripping part 20 is rotatable in the direction of arrow B about the axis of the pivot 30 in accordance with the movement of the operation lever 26 a of the gripping operation part 26. By reducing the weight of the movable gripper 20, the inertial mass of the movable gripper 20 is reduced, and the force required for operating the operation lever 26a is reduced.
 枢軸30は、固定把持部22と可動把持部20とを連結する。固定把持部22のアーム部22bの第1曲線部22b1には枢軸30を通すための孔22cが形成されている。可動把持部20のアーム部20bの基部20d近傍には枢軸30を通すための孔20cが形成されている。そして、枢軸30は、絶縁操作棒14の軸線方向と直交する方向、かつ、固定把持部22と可動把持部20とが接離する方向と直交する方向に、孔22c及び孔20cに通される。よって、固定把持部22の孔22c及び可動把持部20の孔20cに枢軸30を通すことで、固定把持部22と可動把持部20とは、回動可能に連結される。 The pivot 30 connects the fixed grip portion 22 and the movable grip portion 20. A hole 22c through which the pivot 30 is passed is formed in the first curved portion 22b1 of the arm portion 22b of the fixed grip portion 22. In the vicinity of the base portion 20d of the arm portion 20b of the movable gripping portion 20, a hole 20c for passing the pivot 30 is formed. Then, the pivot 30 is passed through the hole 22c and the hole 20c in a direction orthogonal to the axial direction of the insulating operation rod 14 and in a direction orthogonal to the direction in which the fixed gripping portion 22 and the movable gripping portion 20 come in contact with and away from each other. . Therefore, by passing the pivot 30 through the hole 22c of the fixed grip portion 22 and the hole 20c of the movable grip portion 20, the fixed grip portion 22 and the movable grip portion 20 are rotatably connected.
 図2に示すように、可動把持部20の当接部20aにおける複数の突条Wの稜線が形成する平面(以下、「平面20a1」という。)が、枢軸30の軸心から最も近い可動把持部20の突条Wの稜線に向かって、枢軸30の軸心より延ばした直線方向から、対向する固定把持部22の当接部22a側に略3度傾斜しており(図2のθ1)、例えば3.17度傾斜している。同様に、固定把持部22の当接部22aにおける複数の突条Wの稜線が形成する平面(以下、「平面22a1」という。)が、枢軸30の軸心から最も近い固定把持部22の突条Wの稜線に向かって、枢軸30の軸心より延ばした直線方向から、対向する可動把持部20の当接部20a側に略3度傾斜しており(図2のθ2)、例えば3.17度傾斜している。これにより、図4に示すように、直径又は厚みが2mm~5mmである把持対象物84を当接部20a及び22aが把持したときには、各当接部20a及び22aにおける平面20a1及び平面22a1は、略平行となる。これにより、把持対象物84は、当接部20a及び22aから、互いに相殺する圧力のみを受け、当接部20a及び22aの長手方向に移動させるような力は受けない。したがって、直径又は厚みが2mm~5mmである把持対象物84が把持部12の内側又は外側に脱落するおそれはない。 As shown in FIG. 2, the movable gripper whose plane (hereinafter referred to as “plane 20 a 1”) formed by the ridgelines of the plurality of protrusions W in the contact portion 20 a of the movable gripper 20 is closest to the axis of the pivot 30. Inclined approximately 3 degrees toward the contact portion 22a side of the opposing fixed grip portion 22 from the linear direction extending from the axis of the pivot 30 toward the ridge line of the protrusion W of the portion 20 (θ1 in FIG. 2) For example, it is inclined 3.17 degrees. Similarly, the projection of the fixed grip 22 that the plane (hereinafter referred to as “plane 22a1”) formed by the ridgelines of the plurality of protrusions W in the contact portion 22a of the fixed grip 22 is closest to the axis of the pivot 30 is the same. Inclined approximately 3 degrees (θ2 in FIG. 2) from the linear direction extending from the axis of the pivot 30 toward the abutment portion 20a side of the movable gripping portion 20 facing the ridgeline of the strip W (for example, θ2). It is inclined 17 degrees. Accordingly, as shown in FIG. 4, when the contact portions 20a and 22a grip the gripping object 84 having a diameter or thickness of 2 mm to 5 mm, the flat surfaces 20a1 and 22a1 of the contact portions 20a and 22a are: It becomes almost parallel. As a result, the gripping object 84 receives only pressures that cancel each other from the contact portions 20a and 22a, and does not receive a force that moves the contact portions 20a and 22a in the longitudinal direction. Therefore, there is no possibility that the gripping object 84 having a diameter or thickness of 2 mm to 5 mm falls off inside or outside the grip portion 12.
 固定把持部22の突条Wの稜線と可動把持部20の突条Wの稜線とは対向する。固定把持部22の当接部22aにおける突条Wの頂点と可動把持部20の当接部20aにおける突条Wの頂点とは、固定把持部22の当接部22aと可動把持部20の当接部20aとが閉じたとき、基部22d、20d側とは反対側の先端側において当接し、且つ、基部22d、20d側に向かうに従って離間する。そして、固定把持部22の当接部22aと可動把持部20の当接部20aとは、電線84を把持するとき、電線84の径と同一又は電線84の径に近い間隔をおいて電線84を把持する。 The ridge line of the ridge W of the fixed grip part 22 and the ridge line of the ridge W of the movable grip part 20 face each other. The apex of the ridge W at the contact portion 22a of the fixed grip portion 22 and the apex of the ridge W at the contact portion 20a of the movable grip portion 20 are the contact between the contact portion 22a of the fixed grip portion 22 and the movable grip portion 20. When the contact portion 20a is closed, it comes into contact with the distal end side opposite to the base portions 22d and 20d side, and is separated toward the base portions 22d and 20d side. The contact portion 22a of the fixed grip portion 22 and the contact portion 20a of the movable grip portion 20 are the same as the diameter of the wire 84 or at an interval close to the diameter of the wire 84 when the wire 84 is gripped. Grip.
 当接部20a及び22aの突条Wの並列する方向の間隔(図3のh1、h2)は、2mmである。これにより、間接活線工事用把持工具10は、直径又は厚みが2mm~5mmである把持対象物84を当接部20a及び22aが把持した時に、把持対象物84を損傷するおそれがない。つまり、前記間隔が2mmより広い場合には、把持対象物84に対して当接する突条Wが少数となり、突条Wからの圧力は微小領域においてのみ把持対象物84に作用することとなる。したがって、把持対象物84の狭い領域に圧力が集中し、その結果、把持対象物84が損傷するおそれがある。例えば、把持対象物84が直径2mmの電線であり前記間隔が3mmである場合には、電線と当接する突条Wは、いずれかの当接部側で1点となり、電線の被覆を剥がしてしまうおそれ又は電線を切断してしまうおそれがある。よって、突条W間の間隔が2mmであれば、把持対象物84が直径2mmの電線であっても、電線と当接する突条Wは、いずれかの当接部側で2点となり、電線を損傷するおそれがない。一方、前記間隔が2mmより狭い場合には、突条W間に異物が詰まりやすくなり、突条Wが有する摺動防止の機能が果たせなくなるおそれがある。また、前記間隔が狭くなればなるほど、突条Wの数が多くなることにつながり、加工の困難性が増すことにつながる。 The interval (h1, h2 in FIG. 3) in the direction in which the protrusions W of the contact portions 20a and 22a are arranged in parallel is 2 mm. As a result, the gripping tool 10 for indirect hot wire construction does not cause damage to the gripping object 84 when the gripping object 84 having a diameter or thickness of 2 mm to 5 mm is gripped by the contact portions 20a and 22a. That is, when the interval is wider than 2 mm, the number of protrusions W that come into contact with the gripping object 84 is small, and the pressure from the protrusion W acts on the gripping object 84 only in a minute region. Therefore, the pressure concentrates on a narrow region of the gripping object 84, and as a result, the gripping object 84 may be damaged. For example, when the gripping object 84 is an electric wire having a diameter of 2 mm and the interval is 3 mm, the protrusion W that comes into contact with the electric wire becomes one point on either abutting portion side, and the covering of the electric wire is peeled off. There is a risk of cutting or cutting the electric wire. Therefore, if the interval between the ridges W is 2 mm, even if the gripping object 84 is an electric wire having a diameter of 2 mm, the ridge W that contacts the electric wire becomes two points on either abutting portion side. There is no risk of damage. On the other hand, when the interval is narrower than 2 mm, foreign matter is likely to be clogged between the ridges W, and the function of preventing the sliding of the ridges W may not be performed. In addition, the narrower the interval, the greater the number of ridges W and the greater the difficulty of processing.
 図3(A)(B)に示すように、当接部20a及び22aに設けられる複数の突条Wの並列する方向の断面形状は、鋭く尖った波型ではなく、正弦波形であるように形成されている。これにより、直径又は厚みが2mm~5mmである把持対象物84を当接部20a及び22aが把持した時に、把持対象物84が損傷するおそれがない。つまり、突条Wの先端部が鋭い形状である場合は、突条Wからの圧力は微小領域においてのみ把持対象物84に作用することとなる。したがって、把持対象物84の狭い領域に圧力が集中し、その結果、把持対象物84が損傷するおそれがある。例えば、把持対象物84が電線である場合には、鋭い形状である突条の先端部は、電線の被覆を剥がしてしまうおそれ又は電線を切断してしまうおそれがある。一方、複数の突条Wの並列する方向の断面形状が正弦波形であるように形成されていれば、突条Wが把持対象物84に作用する圧力が分散し、把持対象物84が損傷するおそれがなくなる。 As shown in FIGS. 3A and 3B, the cross-sectional shape of the plurality of protrusions W provided in the contact portions 20a and 22a in the parallel direction is not a sharp wave shape but a sinusoidal waveform. Is formed. Thereby, there is no possibility that the gripping target object 84 is damaged when the gripping target object 84 having a diameter or thickness of 2 mm to 5 mm is gripped by the contact portions 20a and 22a. That is, when the tip of the ridge W has a sharp shape, the pressure from the ridge W acts on the grasped object 84 only in a minute region. Therefore, the pressure concentrates on a narrow region of the gripping object 84, and as a result, the gripping object 84 may be damaged. For example, when the gripping object 84 is an electric wire, the tip of the ridge having a sharp shape may peel off the electric wire or may cut the electric wire. On the other hand, if the plurality of protrusions W are formed so that the cross-sectional shape in the parallel direction is a sine waveform, the pressure acting on the gripping object 84 by the protrusions W is dispersed, and the gripping object 84 is damaged. No fear.
 図4に示すように、当接部20a及び22aに設けられる複数の突条Wは、その並列する方向においてその先端の稜線を互いに突き合う様な位置に設けられている。これにより、直径又は厚みが2mm~5mmである把持対象物84を当接部20a及び22aが把持した時に、把持対象物84が損傷するおそれがない。つまり、仮に、当接部20a及び22aの複数の突条Wが、その並列する方向においてその先端の稜線を歯合するような位置に設けられている場合は、突条Wは、せん断するような圧力を把持対象物84に作用する。このような場合は、本発明は直径又は厚みが2mm~5mmである線状体、板状体又は布状体を把持できることを特に目的とするものであることから、このような細い又は薄い把持対象物84は、容易にせん断されるおそれがある。一方、突条Wが、その並列する方向においてその先端の稜線を互いに突き合うような位置に各当接部20a及び22aに設けられている場合は、突条Wはせん断力を把持対象物84に作用することはない。 As shown in FIG. 4, the plurality of ridges W provided on the contact portions 20a and 22a are provided at positions where the ridge lines at the tips thereof abut each other in the parallel direction. Thereby, there is no possibility that the gripping target object 84 is damaged when the gripping target object 84 having a diameter or thickness of 2 mm to 5 mm is gripped by the contact portions 20a and 22a. In other words, if the plurality of ridges W of the contact portions 20a and 22a are provided at positions where the ridge lines at the tips thereof are meshed in the parallel direction, the ridges W shear. Pressure is applied to the object 84 to be grasped. In such a case, the present invention is particularly intended to be able to grip a linear body, a plate body or a cloth body having a diameter or thickness of 2 mm to 5 mm. The object 84 may be easily sheared. On the other hand, when the ridge W is provided at each of the contact portions 20a and 22a at a position where the ridge lines at the tips thereof abut each other in the parallel direction, the ridge W exerts a shearing force on the object to be grasped 84. Does not act on.
 把持操作部26は、絶縁操作棒14の基端部近傍に設けられる。把持操作部26は、操作レバー26aと、支持金具26bと、解除レバー26cと、操作用回動軸26dと、作動片26eと、を有する。支持金具26bには、操作レバー26aが操作用回動軸26dで軸支されている。操作レバー26aと絶縁操作棒14に対して同一側に突出した作動片26eは、補助絶縁操作棒24の基端部に回動可能に連結されている。したがって、作業者が操作レバー26aを握る操作を行うと、梃子の作用で補助絶縁操作棒24が下向きに引っ張られ、把持部12の可動把持部20が固定把持部22に向かって閉じるように動作する。これにより、可動把持部20と固定把持部22との間で把持対象物84を把持することが可能となる。 The grip operation part 26 is provided in the vicinity of the base end part of the insulating operation rod 14. The grip operation unit 26 includes an operation lever 26a, a support fitting 26b, a release lever 26c, an operation rotation shaft 26d, and an operating piece 26e. An operation lever 26a is pivotally supported on the support fitting 26b by an operation rotation shaft 26d. The operating piece 26e that protrudes to the same side with respect to the operating lever 26a and the insulating operating rod 14 is rotatably connected to the base end portion of the auxiliary insulating operating rod 24. Accordingly, when the operator performs an operation of grasping the operation lever 26a, the auxiliary insulating operation rod 24 is pulled downward by the action of the lever, and the movable gripping portion 20 of the gripping portion 12 is closed toward the fixed gripping portion 22. To do. Thereby, it becomes possible to hold | grip the holding | grip target object 84 between the movable holding part 20 and the fixed holding part 22. FIG.
 また、支持金具26bと操作レバー26aの間には、操作レバー26aを開く向きに付勢するバネ28が取り付けられている。バネ28により、作業者が操作レバー26aを操作していないときには、操作レバー26aが開状態となる。それに伴って、可動把持部20も固定把持部22に対し離間した開状態に保持される。 Also, a spring 28 is attached between the support fitting 26b and the operation lever 26a to bias the operation lever 26a in the opening direction. When the operator is not operating the operation lever 26a by the spring 28, the operation lever 26a is opened. Along with this, the movable gripper 20 is also held in an open state separated from the fixed gripper 22.
 前記支持金具26bにはロック機構が備えられており、このロック機構は、前述の特許文献1に詳細に示されている周知のものであるので、以下に簡単に説明する。前記ロック機構は、操作レバー26aの梃子の支点位置に取り付けたころ(図示せず)を使用するベアリング状のワンウェイクラッチ(図示せず)と、このワンウェイクラッチを軸支する操作用回動軸26dと、この操作用回動軸26dの回動を任意の位置で固定・開放する複数の系止機構(図示せず)とを備えている。この系止機構は、図示省略しているが、操作用回動軸26dに固定した係止歯車と、係止歯車を係止する係止ピンと、係止ピンを係止歯車の向きに付勢する係止スプリングと、係止ピンのピンを押し上げて係止ピンの係止を解除する解除レバー26cと、解除レバー26cを回動可能に支持するレバー支持軸と、解除レバー26cを係止解除位置に保持または開放する係止解除つまみと、係止解除つまみを回動可能に支持するつまみ支持軸とを備えている。 The support fitting 26b is provided with a lock mechanism, which is a well-known one shown in detail in the above-mentioned Patent Document 1, and will be briefly described below. The lock mechanism includes a bearing-like one-way clutch (not shown) that uses a roller (not shown) attached to a lever fulcrum position of the operation lever 26a, and an operation rotation shaft 26d that pivotally supports the one-way clutch. And a plurality of system stop mechanisms (not shown) for fixing and releasing the rotation of the operation rotation shaft 26d at an arbitrary position. Although not shown in the drawings, this locking mechanism is fixed to the operation rotation shaft 26d, a locking pin that locks the locking gear, and the locking pin is biased toward the locking gear. A locking spring, a release lever 26c that pushes up the pin of the locking pin and releases the locking of the locking pin, a lever support shaft that rotatably supports the release lever 26c, and a release of the release lever 26c An unlocking knob that is held or released at a position and a knob support shaft that rotatably supports the unlocking knob are provided.
 そして、係止機構を開放位置にセットしてロック機構を開放した場合には、操作用回動軸26dが自由に回動可能となり、ワンウェイクラッチの作用が操作レバー26aの操作と無関係となって操作レバー26aが自由に回動し、操作レバー26aの開閉操作が補助絶縁操作棒24に伝わり、可動把持部20が操作レバー26aの開閉操作に応じて開閉する。一方、係止機構を係止位置にセットしてロック機構が作用するようにした場合には、操作用回動軸26dが係止されて、ワンウェイクラッチの作用により操作レバー26aが閉じる向き、つまり補助絶縁操作棒24を下向きに引っ張る様にしか回動せず、且つ無段階で任意の位置に操作レバー26aがロックされる。 When the locking mechanism is set to the open position and the lock mechanism is opened, the operation rotation shaft 26d can freely rotate, and the operation of the one-way clutch becomes independent of the operation of the operation lever 26a. The operation lever 26a freely rotates, and the opening / closing operation of the operation lever 26a is transmitted to the auxiliary insulating operation rod 24, and the movable gripper 20 is opened / closed according to the opening / closing operation of the operation lever 26a. On the other hand, when the locking mechanism is set at the locking position so that the locking mechanism operates, the operation rotating shaft 26d is locked and the operation lever 26a is closed by the action of the one-way clutch, that is, The operation lever 26a can be locked in an arbitrary position without any step by rotating as if the auxiliary insulation operation rod 24 is pulled downward.
 したがって、作業者が操作レバー26aを閉じる向きに操作すると、操作レバー26aは、作業者が閉じる向きに操作した位置に停止する。同時に、可動把持部20は補助絶縁操作棒24を介して操作レバー26aの閉じ位置に応じた位置でロックされる状態となる。この際、把持対象物84の大きさの如何に関らず、作業者が把持対象物84を作業に適した力で把持できたと判断した時点で操作レバー26aから手を離せば、その状態で、操作レバー26aがロックされるようになっている。 Therefore, when the operator operates to close the operation lever 26a, the operation lever 26a stops at the position operated by the worker in the closing direction. At the same time, the movable gripper 20 is locked at a position corresponding to the closed position of the operation lever 26a via the auxiliary insulating operation rod 24. At this time, regardless of the size of the gripping object 84, when the operator determines that the gripping object 84 can be gripped with a force suitable for the work, if the hand is released from the operation lever 26a, the state is maintained. The operation lever 26a is locked.
 つぎに、本発明の他の実施形態を説明する。
 前記実施例では、絶縁操作棒14の中ほどにおいて雨切16を設けていたが、雨切16は降雨による沿面放電や漏電を防止するための構成要素である。したがって、前記実施例における絶縁操作棒14において雨切16を設けない構成としても、前記実施例と同様に、本発明の効果を得ることができる。
 また、図4においては把持対象物84が直径2mm~5mmの電線である場合を図解したが、把持対象物84が厚み2mm~5mmの板状体又は布状体であっても、本発明の効果を得ることができる点は、何ら変わりがない。
Next, another embodiment of the present invention will be described.
In the above embodiment, the rain stopper 16 is provided in the middle of the insulating operation rod 14, but the rain stopper 16 is a component for preventing creeping discharge and electric leakage due to rain. Therefore, even if it is the structure which does not provide the rain drain 16 in the insulation operating rod 14 in the said Example, the effect of this invention can be acquired similarly to the said Example.
4 illustrates the case where the object to be grasped 84 is an electric wire having a diameter of 2 mm to 5 mm. However, even if the object to be grasped 84 is a plate or cloth having a thickness of 2 mm to 5 mm, There is no change in the point where the effect can be obtained.
 以上のように、本発明の実施の形態は、前記記載で開示されているが、本発明は、これに限定されるものではない。
 すなわち、本発明の技術的思想及び目的の範囲から逸脱することなく、以上説明した実施の形態に対し、機序、形状、材質、数量、位置又は配置等に関して、様々の変更を加えることができるものであり、それらは、本発明に含まれるものである。
As described above, the embodiment of the present invention has been disclosed in the above description, but the present invention is not limited to this.
That is, various modifications can be made to the embodiment described above with respect to the mechanism, shape, material, quantity, position, arrangement, etc., without departing from the scope of the technical idea and object of the present invention. Which are included in the present invention.
10 間接活線工事用把持工具
12 把持部
14 絶縁操作棒
16 雨切
18 鍔
20 可動把持部(開閉片)
20a 可動把持部の当接部
20b 可動把持部のアーム部
20c 可動把持部の孔
20d 可動把持部の基部
22 固定把持部(開閉片)
22a 固定把持部の当接部
22b 固定把持部のアーム部
22c 固定把持部の孔
22d 固定把持部の基部
22e 固定把持部の穴
W  可動把持部の当接部及び固定把持部の当接部に設けられた突条
20a1 可動把持部の当接部20aにおける複数の突条Wの稜線が形成する平面
22a1 固定把持部の当接部22aにおける複数の突条Wの稜線が形成する平面
θ1 平面20a1が、枢軸30の軸心から最も近い可動把持部20の突条Wの稜線に向
   かって枢軸30の軸心より延ばした直線方向から、対向する固定把持部22の当接
   部22a側に傾斜する角度
θ2 平面22a1が、枢軸30の軸心から最も近い固定把持部22の突条Wの稜線に向
   かって枢軸30の軸心より延ばした直線方向から、対向する可動把持部20の当接
   部20a側に傾斜する角度
h1 可動把持部の当接部に設けられた突条の並列する方向の間隔
h2 固定把持部の当接部に設けられた突条の並列する方向の間隔
24 補助絶縁操作棒
26 把持操作部
26a 操作レバー
26b 支持金具
26c 解除レバー
26d 操作用回動軸
26e 作動片
28 バネ
30 枢軸
84 把持対象物(電線)
10 Grasping tool for indirect hot-line work 12 Grasping part 14 Insulating operation rod 16 Rain gutter 18 鍔 20 Movable gripping part (open / close piece)
20a Contact part 20b of the movable gripping part Arm part 20c of the movable gripping part Hole 20d of the movable gripping part Base 22 of the movable gripping part Fixed gripping part (opening / closing piece)
22a Fixed gripping portion contact portion 22b Fixed gripping portion arm portion 22c Fixed gripping portion hole 22d Fixed gripping portion base portion 22e Fixed gripping portion hole W On the movable gripping portion contact portion and the fixed gripping portion contact portion Provided ridges 20a1 Plane 22a1 formed by ridgelines of a plurality of ridges W in the abutment portion 20a of the movable gripping portion Plane θ1 plane 20a1 formed by ridgelines of the plurality of ridges W in the contact portion 22a of the fixed gripping portion Is inclined from the linear direction extending from the axis of the pivot 30 toward the ridgeline of the ridge W of the movable grip 20 closest to the axis of the pivot 30 toward the contact portion 22a of the opposing fixed grip 22. The abutting portion 20a of the movable gripping portion 20 facing the angle θ2 plane 22a1 from the linear direction extending from the shaft center of the pivot 30 toward the ridgeline of the protrusion W of the fixed gripping portion 22 closest to the shaft center of the pivot 30. ~ side Inclination angle h1 Interval in parallel direction of ridges provided at the abutting portion of the movable gripping portion h2 Interval in parallel direction of ridges provided at the abutting portion of the fixed gripping portion 24 Auxiliary insulation operating rod 26 Operation part 26a Operation lever 26b Support metal fitting 26c Release lever 26d Operation rotating shaft 26e Actuating piece 28 Spring 30 Axis 84 Object to be grasped (electric wire)

Claims (4)

  1.  電線と人体との間に安全を保つための安全距離以上の長さを有する絶縁性の絶縁操作棒と、
     前記絶縁操作棒の軸線方向の先端に設けられ、前記絶縁操作棒に設けられた把持操作部の操作によって接離動作される可動把持部と固定把持部とを有する把持部と、
     先端に接続した前記把持部の接離動作を補助する絶縁性の補助絶縁操作棒と、
     前記絶縁操作棒の基端部近傍に取り付けられ前記補助絶縁操作棒の基端部に回動可能に接続し梃子の作用で前記補助絶縁操作棒をその長さ方向に往復移動させて前記把持部を操作する把持操作部と、
     固定把持部と可動把持部とを連結するための枢軸と、
    を備える間接活線工事用把持工具であって、
     前記把持部の前記固定把持部及び前記可動把持部は、基部と、前記絶縁操作棒の軸線方向を含む面上で外側に凸の略円弧状に形成されたアーム部と、前記アーム部の先端に接続される当接部と、を備え、
     前記固定把持部は、その基部で絶縁操作棒の先端に接続され、
     前記可動把持部は、その基部で補助絶縁操作棒の先端に回動可能に連結され、アーム部の基端部近傍で前記固定把持部の基部上方に枢軸を介して回動可能に連結され、前記把持操作部による操作に応じて、前記固定把持部に向かって回動可能であり、
     前記固定把持部及び前記可動把持部の前記当接部は、ともに、前記絶縁操作棒の軸線方向と交差する方向に延びる複数の突条が平行に並列するように設けられており、
     前記固定把持部及び前記可動把持部の前記複数の突条の高さは略同一であり、
     前記固定把持部の突条の稜線と前記可動把持部の突条の稜線とは対向し、
     前記固定把持部の当接部と前記可動把持部の当接部とが閉じたとき、基部とは反対側の先端側において当接し、且つ、前記固定把持部の前記当接部における前記突条の頂点と前記可動把持部の前記当接部における前記突条の頂点とは、基部に向かうに従って離間するように構成され、
     前記固定把持部の当接部と前記可動把持部の当接部とが電線を把持したとき、把持された電線の径と同一又は把持された電線の径に近い間隔をおいて電線を把持するように構成されたことを特徴とする、間接活線工事用把持工具。
    An insulative insulating operation rod having a length greater than a safe distance for keeping safety between the electric wire and the human body;
    A gripping portion provided at a tip end in the axial direction of the insulating operation rod, and having a movable gripping portion and a fixed gripping portion that are moved toward and away by an operation of a gripping operation portion provided in the insulating operation rod;
    An insulative auxiliary insulation operating rod for assisting the contact / separation operation of the grip portion connected to the tip;
    The gripping portion is mounted near the base end portion of the insulation operating rod and pivotally connected to the base end portion of the auxiliary insulation operation rod, and the auxiliary insulation operation rod is reciprocated in the length direction by the action of an insulator. A gripping operation unit for operating
    A pivot for connecting the fixed gripping part and the movable gripping part;
    A gripping tool for indirect hot wire construction comprising:
    The fixed gripping portion and the movable gripping portion of the gripping portion include a base, an arm portion formed in a substantially arc shape protruding outward on a surface including the axial direction of the insulating operation rod, and a tip of the arm portion A contact portion connected to,
    The fixed gripping portion is connected to the tip of the insulating operation rod at its base portion,
    The movable gripping portion is pivotally connected to the distal end of the auxiliary insulating operation rod at the base portion, and is pivotally connected to the upper portion of the fixed gripping portion near the base end portion of the arm portion via a pivot. In response to an operation by the grip operation unit, it can be rotated toward the fixed grip unit,
    Both the fixed grip portion and the abutment portion of the movable grip portion are provided such that a plurality of protrusions extending in a direction intersecting the axial direction of the insulating operating rod are arranged in parallel.
    The heights of the plurality of protrusions of the fixed grip portion and the movable grip portion are substantially the same,
    The ridge line of the fixed grip part and the ridge line of the movable grip part are opposed to each other,
    When the contact portion of the fixed grip portion and the contact portion of the movable grip portion are closed, they contact at the distal end side opposite to the base portion, and the protrusions at the contact portion of the fixed grip portion The apex of the protrusion and the apex of the protrusion at the contact portion of the movable gripping part are configured to be separated from each other toward the base part.
    When the abutting portion of the fixed gripping portion and the abutting portion of the movable gripping portion grip the electric wire, the electric wire is gripped at an interval equal to the gripped electric wire diameter or close to the gripped electric wire diameter. A gripping tool for indirect hot wire construction, characterized in that it is configured as described above.
  2.  請求項1に記載の間接活線工事用把持工具であって、前記固定把持部及び前記可動把持部の各々の前記当接部における突条の並列する方向の間隔が2mmであることを特徴とする、間接活線工事用把持工具。 It is the holding tool for indirect hot-wire work of Claim 1, Comprising: The space | interval of the direction where the protrusion in the said contact part of each of the said fixed holding part and the said movable holding part is parallel is 2 mm, It is characterized by the above-mentioned. A gripping tool for indirect hot wire construction.
  3.  請求項1に記載の間接活線工事用把持工具であって、前記固定把持部及び前記可動把持部の各々の前記当接部における前記複数の突条の並列する方向の断面形状が正弦波形であるように形成されていることを特徴とする、間接活線工事用把持工具。 It is a holding tool for indirect hot-wire construction of Claim 1, Comprising: The cross-sectional shape of the direction where the said several protrusion parallels in each said contact part of the said fixed holding part and the said movable holding part is a sine waveform. A gripping tool for indirect hot wire construction, characterized in that it is formed in a certain manner.
  4.  請求項1に記載の間接活線工事用把持工具であって、前記固定把持部及び前記可動把持部の各々の前記当接部における前記複数の突条が、その並列する方向においてその先端の稜線を互いに突き合うような位置に設けられていることを特徴とする、間接活線工事用把持工具。 The indirect hot-wire construction gripping tool according to claim 1, wherein the plurality of protrusions at each of the contact portions of the fixed gripping portion and the movable gripping portion are ridge lines at the tips thereof in a direction in which they are arranged in parallel. A gripping tool for indirect hot-wire construction, characterized in that they are provided at positions that face each other.
PCT/JP2017/019305 2016-05-30 2017-05-24 Gripping tool for indirect hot wire construction WO2017208917A1 (en)

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JP2018520828A JP6791958B2 (en) 2016-05-30 2017-05-24 Gripping tool for indirect live-line work
KR1020187033122A KR102334725B1 (en) 2016-05-30 2017-05-24 Gripping tool for indirect live wire construction
CN201780028429.3A CN109075543B (en) 2016-05-30 2017-05-24 Holding tool for indirect live-wire work

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