JP2017024121A - Polishing tool for electric wire surface, and method for polishing electric wire line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently polish an electric wire surface.SOLUTION: A polishing tool 10 has a property such that a shape of the tool is stable in a first state of linearly extending in a longer direction and a second state of being spirally curled. The tool has a belt-like elastic material layer 11, and a polishing member layer 12 which is formed on an inner peripheral surface side of the elastic material layer 11. A cross-sectional shape of the elastic material layer 11 becomes an arc shape curved in an outer peripheral direction toward the polishing member layer 12 in the first state, and becomes a flat shape in the second state. The elastic material layer 11 is so reformed as to be spirally curled in the second state. The polishing member layer 12 is configured from at least any one of a brush, a polishing material and a sandpaper. For example, the polishing tool 10 is used in such a manner that the tool is attached to a tip of an indirect live line tool in an indirect live line work.SELECTED DRAWING: Figure 9

Description

  The present invention relates to an electric wire surface polishing tool and an electric wire surface polishing method.

  In Patent Document 1, as a technique for easily and safely polishing an electric wire surface, electric wire polishing is performed not by reciprocating movement of a metal brush by human power but by rotating movement of a metal brush driven by a driving device, preferably an electric motor. An apparatus for performing work is disclosed. The above apparatus includes two rotating brushes that are arranged in a substantially parallel manner so that they can approach and separate, a power unit that rotates the two rotating brushes in the same direction, at least the front and rear side surfaces of the rotating brush, and the rotating brush And a pair of protective covers that expose only the hair tips to the wire polishing side, and the surface of the wire is polished by holding the wire between the rolling brushes.

  Patent Document 2 discloses a polishing tool for facilitating electric wire connection work. The polishing tool includes a gripping unit that grips a target object by a pair of rotating members that rotate relative to each other about a rotation axis and a distal end portion contacts and separates, and the rotating member of the gripping unit A remote operation tool comprising: an operation unit that operates to rotate the operation unit; and a transmission unit that transmits a manipulation force applied to the operation unit by connecting the grip unit to a position separated from the operation unit. The mounting member is a pair of mounting devices that are respectively mounted on the tip of the rotating member, and the mounting tool is detachably attached to the tip of the rotating member of the remote work tool, and the tip of the rotating member And a polishing member provided on the opposite surface of the attachment portion that can be attached to and separated from the attachment portion.

  Patent Document 3 is composed of a bag-shaped night-time reflecting material made of a synthetic resin material and an elastic material attached to the reflecting material, and the elastic material is a thin plate-like or belt-like hard or soft material that is flat or warped. A nocturnal reflection band is formed by forming a flat or warped elastic material in a horizontal or curved shape at normal times and instantly forming a curl shape depending on the elastic properties of the material when used. Has been.

  In Patent Document 4, a shrinking force of a rubber-like elastic body is used instead of a restoring force of a spring-like elastic body, and a retroreflective sheet is bonded to the stretched rubber-like elastic body to process it into a bag-like retroreflective tool. And a reflection band formed by inserting a plastic flat plate.

JP-A-61-2226257 JP 2008-125294 A JP 2000-47614 A JP 2000-172204 A

  When interconnecting wires such as overhead wires, the surface of the wire is polished and the oxide film layer on the surface is scraped off to expose a new metal surface, thereby reducing the contact resistance. Here, the polishing work is performed using an electric wire brush or the like. However, in a work with a poor footing such as a utility pole or a bucket of an aerial work vehicle, securing safety and improving work efficiency are problems.

  In particular, when performing a polishing operation using an indirect hot wire tool, an operator uses, for example, an indirect hot wire tool 212 (insulation operation rod or the like) having a wire brush 211 having a structure shown in FIG. As shown in FIG. 13, it is necessary to operate an indirect hot wire tool 212 that is a heavy object on a bucket 131 of an aerial work vehicle with a limited movement range, which is a heavy physical burden. Moreover, in order to grind | polish the whole surface of the electric wire 80 uniformly, it is necessary to apply the electric wire brush 211 to the electric wire 80 uniformly from many directions, and workability | operativity is also not good.

  The present invention has been made in view of these problems, and an object of the present invention is to provide an electric wire surface polishing tool and an electric wire surface polishing method capable of efficiently polishing an electric wire surface with a light load. .

  One of the present invention for achieving the above object is a wire surface polishing tool, which is stable in a first state extending linearly in the longitudinal direction and in a second state curled in a spiral shape. And a polishing member layer formed on the inner peripheral surface side of the elastic material layer in the second state.

  According to the present invention, the operator can easily attach the polishing tool to the electric wire simply by causing the polishing tool to collide with the portion to be polished of the electric wire with a predetermined strength (impact force). By moving back and forth in the tangential direction of the electric wire, the surface of the electric wire can be polished efficiently with a light load.

  The elastic material layer has a cross-sectional shape perpendicular to the longitudinal direction in the first state that is curved in an arc shape with the polishing member layer as an outer peripheral direction, and the cross-sectional shape is flat in the second state. It becomes a shape.

  The elastic material layer is brazed so as to curl spirally in the second state.

  Further, in the second state, the elastic material layer is brazed so that a portion having a predetermined length from one end in the longitudinal direction thereof is not curled in a spiral shape, but is linearly formed. Is a handle for polishing electric wires.

  The abrasive member layer is composed of, for example, at least one of a brush, an abrasive, and sand paper.

  By attaching the polishing tool to the tip of the indirect hot wire tool and polishing the surface of the electric wire, the indirect hot wire work can be carried out easily and efficiently.

  In addition, the subject which this application discloses, and its solution method are clarified by the column of the form for inventing, and drawing.

  According to the present invention, the surface of the electric wire can be polished efficiently with a light load.

It is a perspective view of the polishing tool 10 in a 1st state. It is a top view of the polishing tool 10 in a 1st state. It is a side view of the polishing tool 10 in the first state. It is sectional drawing of the polishing tool 10 in the case of a 1st state. It is a perspective view of the polishing tool 10 in a 2nd state. It is sectional drawing of the polishing tool 10 in a 2nd state. It is a perspective view which shows another example of the polishing tool 10 in the case of a 2nd state. It is a figure explaining the method of grind | polishing the electric wire surface using the polishing tool. It is a figure explaining the method of grind | polishing the electric wire surface using the polishing tool. It is an example of an indirect hot wire tool. It is a figure which shows a mode that polishing operation | work is performed using the polishing tool. It is a perspective view which shows an example of the electric wire brush. It is a figure which shows a mode that the grinding | polishing operation | work is performed using the indirect hot wire tool 212 which attached the electric wire brush 211. FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1 is a perspective view of a polishing tool 10 shown as an embodiment, FIG. 2 is a plan view of the polishing tool 10, FIG. 3 is a side view of the polishing tool 10, and FIG. 4 is a polishing cut along the line AA 'in FIG. 2 is a cross-sectional view of the tool 10. FIG. As shown in these drawings, the polishing tool 10 has a layered structure in which an elastic material layer 11 and an abrasive member layer 12 are laminated, and the whole is a flat strip shape. In the following description, the surface of the polishing tool 10 on which the elastic material layer 11 is formed is referred to as “front surface”, and the surface on which the polishing member layer 12 is formed is referred to as “back surface”. is there.

  The polishing tool 10 has a property that the form is stable in any one of a first state linearly extending in the longitudinal direction and a second state curled in a spiral shape with the back surface inside. 1 to 4 show a case where the polishing tool 10 is in the first state. On the other hand, FIG. 5 is a perspective view of the polishing tool 10 in the second state, and FIG. 6 is a cross-sectional view of the polishing tool 10 in the second state cut along the line AA ′ in FIG. .

  As shown in FIG. 4, in the first state, the polishing tool 10 has a shape in which a cross section when cut along a plane perpendicular to the longitudinal direction is curved in an arc shape (a crescent shape) with the polishing member layer 12 as an outer peripheral direction. Present. Thus, the polishing tool 10 maintains a state where the whole of the polishing tool 10 is linearly extended in the longitudinal direction by having a cross-sectionally curved shape in the first state.

  On the other hand, as shown in FIG. 5, in the second state, the cross section of the polishing tool 10 exhibits a flat shape (planar shape) (in addition, the shape of other parts of the polishing tool 10 is omitted in the figure). ). Thus, the polishing tool 10 maintains a state in which the whole is curled in a spiral shape (the state shown in FIG. 6) by having a flat cross section in the second state. For example, as shown in FIG. 7, the polishing tool 10 may have a structure in which, in the second state, a portion having a predetermined length from one end in the longitudinal direction is maintained in a straight shape without curling in a spiral shape. . For example, the linear portion functions as a handle (gripping portion) when the polishing tool 10 is used as a tip tool attached to the tip of an indirect live wire tool in an indirect live wire work described later.

  The elastic material layer 11 has a flat strip shape, and is made of, for example, stainless steel, aluminum, resin, or the like. The property of the polishing tool 10 in the first state or the second state, that is, the property that the form is stable in the first state or the second state, is expressed by the characteristics of the elastic material layer 11.

  The elastic material layer 11 is brazed to curl in a spiral shape when the polishing tool 10 is in the second state, that is, when the cross-sectional shape is a flat shape. When the polishing tool 10 is in the first state, the elastic body layer 11 is subjected to an external force that causes the cross section of the elastic body layer 11 to be flat (for example, the outer periphery of the arcuate portion of the elastic body layer 11). When an external force acts from the direction), the elastic material layer 11 curls in a spiral shape and the polishing tool 10 shifts from the first state to the second state.

  The polishing member layer 12 is composed of, for example, a brush, an abrasive, sandpaper, which is configured by arranging a plurality of wires (wires) made of a material such as brass, iron, stainless steel, etc. adjacent to each other. Etc. The polishing member layer 12 is bonded to the elastic material layer 11 using, for example, an adhesive. The polishing member layer 12 can be easily attached to and detached from the elastic material layer 11 by, for example, a mechanical attachment / detachment mechanism or a hook-and-loop fastener so that it can be easily replaced when it becomes necessary to be replaced due to wear or damage. It is good also as a structure which can be performed.

<Polishing method of electric wire surface>
Next, a method for polishing the surface of the electric wire using the polishing tool 10 having the above configuration will be described.

  As shown in FIG. 8, the worker first grasps the vicinity of the end of the polishing tool 10 in the first state, and directs the back side (side on which the polishing member layer 12 is formed) toward the electric wire 80. Then, the polishing tool 10 is made to collide with the portion to be polished of the electric wire 80 with a predetermined strength. As a result, the arc-shaped warping of the elastic layer 11 in the first state is released and the cross section becomes a flat shape, and the polishing tool 10 transitions to the second state, curls in a spiral shape and entangles with the electric wire 80.

  FIG. 9 shows a state where the polishing tool 10 is tangled with the electric wire 80. Depending on how the polishing tool 10 collides, the entire polishing tool 10 may not be tangled with the electric wire 80 cleanly. In such a case, for example, a part of the polishing tool 10 may be attached to the electric wire 80. If the end of the entangled polishing tool 10 is gripped and the polishing tool 10 is moved back and forth in the tangential direction of the electric wire 80, the entire polishing tool 10 can be entangled with the electric wire 80 neatly. As described above, the operator can easily attach the polishing tool 10 to the electric wire 80 simply by causing the polishing tool 10 to collide with the electric wire 80.

  Subsequently, the operator holds the end portion of the polishing tool 10 and expands and contracts the polishing tool 10 in the tangential direction of the electric wire 80. Here, when the operator adjusts the speed of expansion and contraction, the polishing member layer 12 of the polishing tool 10 and the surface of the electric wire 80 are rubbed (rubbed), and the surface of the electric wire 80 is polished. In this way, the operator can easily polish the surface of the electric wire 80 simply by expanding and contracting the polishing tool 10 in the tangential direction of the electric wire 80. In addition, the surface of the electric wire 80 can be efficiently polished over a wide range by performing the polishing operation while gradually moving the polishing tool 10 in the lateral direction against the electric wire 80. In addition, since the polishing tool 10 in the second state is entangled over the entire circumference of the electric wire 80, the operator can lightly load the surface of the electric wire 80 to be polished over the entire circumference without being forced to take an unreasonable posture. And it can grind | polish efficiently and uniformly.

<Use for indirect hot-line work>
By the way, the polishing tool 10 demonstrated above can be used as a tip tool attached to the front-end | tip of an indirect hot wire tool, for example in indirect hot wire work.

  FIG. 10 shows a configuration of an insulating Yatco 100 shown as an example of an indirect hot wire tool. As shown in the figure, the insulating jacket 100 includes an operation rod 101, an auxiliary operation rod 102, a grip operation portion 103, a clamping portion 104, one or more draining portions 111, a grip rod portion 116, and the like. The gripping bar portion 116 serves as a handle when the operator supports the indirect hot wire tool 100 during construction. The grip operation unit 103 is provided in the vicinity of the proximal end portion of the operation rod 101. The grip operation unit 103 includes a configuration such as an operation lever 131, a pin (not shown) that pivotally supports the operation lever 131, a support fitting (not shown), a release lever (not shown), and the like. An auxiliary operating rod 102 is connected to the operating lever 131, and the auxiliary operating rod 102 is lowered and the holding unit 104 is opened by an operator performing an operation of grasping and tightening the operating lever 131. The clamping unit 104 includes two opening / closing pieces, that is, a fixed piece 141 and a movable piece 142. Both the fixed piece 141 and the movable piece 142 have a substantially arc shape. The base of the fixed piece 141 is fixed to the tip of the operation rod 100. One end of the movable piece 142 is connected to the auxiliary operation rod 102.

  In the indirect hot wire operation, for example, as shown in FIG. 11, the operator brings the polishing tool 10 close to the electric wire 80 while holding the polishing tool 10 between the holding portions 104 of the insulating Yatco 100, and follows the procedure described above. Polishing.

  Here, as described above, the polishing tool 10 can be easily attached to a portion to be polished by simply colliding with the electric wire 80. Further, the operator can efficiently polish the surface of the electric wire 80 by moving the indirect hot wire tool back and forth in the tangential direction of the electric wire 80 so as to extend and contract the polishing tool 10. Further, since the polishing tool 10 is entangled over the entire circumference of the electric wire 80, the surface of the electric wire 80 can be uniformly polished over the entire circumference. In this way, by using the polishing tool 10 as a tip tool of an indirect hot wire tool, the polishing work on the surface of the electric wire 80 performed as an indirect hot wire work can be efficiently performed with a light load.

  By the way, the above description is for facilitating the understanding of the present invention, and does not limit the present invention. It goes without saying that the present invention can be changed and improved without departing from the gist thereof, and that the present invention includes equivalents thereof.

  For example, the above-described curling of the elastic material layer 11 that curls into a spiral shape may be performed uniformly over the entire elastic material layer 11, or for example, can be easily and reliably wound around the electric wire 80. In addition, the brazing state may be changed for each position along the longitudinal direction of the polishing tool 10.

  Moreover, when the grinding | polishing object site | part of the electric wire 80 is wide, you may use the thing wide (the length of the X direction is wide) as the polishing tool 10, for example.

  Further, for example, the elastic material layer 11 may be accommodated in a flat case or cover made of a raw material such as an insulating resin for the purpose of ensuring insulation and preventing cut accidents.

  The polishing tool 10 described above can also be applied to uses for polishing the surface of various wires other than electric wires.

DESCRIPTION OF SYMBOLS 10 Polishing tool, 11 Elastic material layer, 12 Abrasive member layer, 80 Electric wire, 100 Insulating yarn

Claims (6)

A wire surface polishing tool,
A belt-like elastic material layer having a property that the form is stable in a first state linearly extending in the longitudinal direction and a second state curled in a spiral shape;
A polishing member layer formed on the inner peripheral surface side of the elastic material layer in the second state.
Electric wire surface polishing tool. The wire surface polishing tool according to claim 1,
The elastic material layer has a shape in which the cross-sectional shape perpendicular to the longitudinal direction in the first state is curved in an arc shape with the polishing member layer as an outer peripheral direction, and the cross-sectional shape is flat in the second state. Become a wire surface polishing tool. A wire surface polishing tool according to claim 1 or 2,
The elastic material layer is brazed so as to curl in a spiral shape in the second state. A wire surface polishing tool according to any one of claims 1 to 3,
In the second state, the elastic material layer is brazed so that a portion having a predetermined length from one end in the longitudinal direction is not curled in a spiral shape but is linearly curled. A wire surface polishing tool according to any one of claims 1 to 4,
The polishing member layer is composed of at least one of a brush, an abrasive, and sand paper. A method for polishing an electric wire surface, wherein the polishing tool according to any one of claims 1 to 5 is attached to a tip of an indirect hot wire tool to polish an electric wire surface.

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