JP5654077B2 - Auxiliary tool for indirect hot-wire work and indirect hot-wire tool equipped with the same - Google Patents

Description

  The present invention relates to an auxiliary tool for indirect hot wire work that prevents an electric shock of an operator in indirect hot wire work, and an indirect hot wire tool equipped with the same.

  In indirect hot wire work, an indirect hot wire tool with an insulating rod as the main axis is used. Since live lines such as charging electric wires are at high voltage, there is a risk that an operator may receive an electric shock unless a predetermined distance from the live line to the worker is secured.

In order to prevent such an electric shock of the operator, the indirect hot wire tool is provided with a limit collar at a position that secures a predetermined distance from the tip of the tool, and the operator grips the tip side of the limit collar. (See Patent Document 1).
In addition, in Patent Document 1, when the distance between a live line other than the live line that is the work target and the worker is shorter than a certain distance, the worker is warned by sound or light to call attention. An indirect hot wire tool that prevents an electric shock of a person is disclosed.

JP 2012-110134 A

  By the way, the tip of the indirect live tool is provided at the tip of the indirect live tool, and this tip tool occupies most of the weight of the indirect live tool, so the center of gravity of the indirect live tool is near the tip. is there. Therefore, the worker has a psychology that he / she wants to work in a state in which the tool is stabilized by having a long and heavy indirect hot-line tool on the tip side (position closer to the center of gravity position). In addition to this situation, the worker concentrates on the tip side of the indirect hot-wire tool while working.

  For this reason, there is a risk of electric shock because the operator concentrates on the work and grasps the tip side of the limit brim to stabilize the indirect hot wire tool. In particular, when the operator has little experience and is unaccustomed to work, there is a problem that the risk of electric shock further increases.

  However, in the indirect hot wire tool of Patent Document 1, it is assumed that the operator grips the end side of the limit brim of the indirect hot wire tool. Such a problem cannot be solved because it prevents electric shock.

  Moreover, indirect hot-line work is often performed from a bucket of an operator at high altitude, and there is a risk that an accident may occur when the worker drops the tool for indirect hot-wire.

  The present invention has been made in view of such circumstances, and prevents an electric shock of an operator during indirect hot line work, and an indirect live line work auxiliary tool for preventing a fall accident of the indirect live line tool, and The main task is to provide a tool for indirect hot-line installation.

In order to achieve the above object, the auxiliary tool for indirect hot-wire work according to the present invention is formed so as to be fixable to a lower bar-like portion that is below a limit brim that defines a safety limit of an indirect hot-wire tool. A fixing part, an attachment part formed so as to be fixable to an operator's arm, and a string-like connection part that connects the fixing part and the attachment part, and the length of the connection part is it is characterized in shorter than the distance from the position where the limit flange indirect hot-line tool is provided to a position where the fixing portion is fixed.

The length of the connecting portion is shorter than the distance from the limit brim of the indirect hot wire tool to the position where the fixing portion is fixed, so that the mounting portion is located on the tip side of the limit brim of the indirect hot wire tool. Nothing will happen. Therefore, when the operator attaches the attachment part to the arm, the movement range of the attachment part is limited to a range in which the length of the connecting part is a radius. It is possible to prevent the side from being gripped.
Further, even when the operator's hand slips and the indirect hot wire tool is separated from the hand, the attachment portion is fixed to the operator's arm, so that a fall accident can be prevented.

The attachment portion may be formed in a band shape, and the inner side surface and the outer side surface may be formed to be fixable to each other by a hook-and-loop fastener.
By forming the inner side surface and the outer side surface of the attachment portion so as to be fixable by a hook-and-loop fastener, the attachment portion can be attached to the operator's arm with a simple operation.

The mounting portion is formed in a clip shape having a housing portion formed so as to surround the operator's arm and a pair of introducing portions formed following the housing portion, and the introducing portion is In addition, an introduction port into which the operator's arm can be inserted is formed, and the introduction port may be formed such that its size can be freely deformed by an elastic force generated in the introduction portion.
The introduction port of the attachment part is formed so that its size can be freely deformed by the elastic force generated in the introduction part, so that the operator can fix the attachment part to the arm simply by inserting the arm into the introduction port. It becomes possible.

  In the indirect hot wire tool equipped with the indirect hot wire work auxiliary tool described above, irregularities may be formed between the limit brim of the indirect live wire tool and the position where the fixing portion is fixed. .

Since the unevenness is formed between the limit brim of the indirect live tool and the position where the fixed part is fixed, the position where the operator holds the indirect live tool can be clarified. It is possible to prevent the person from gripping the indirect hot wire tool at a position where there is a risk of electric shock exceeding the limit collar.
Moreover, since grip force increases by this unevenness | corrugation, it can prevent that the tool for indirect hot-wires slips from an operator's hand.

As described above, according to the auxiliary tool for indirect hot wire work of the present invention, the length of the connecting portion is shorter than the distance from the limit brim of the tool for indirect hot wire to the position where the fixed portion is fixed. Therefore, it is possible to prevent the operator from unexpectedly grasping the tip side of the limit brim of the indirect hot wire tool and receiving an electric shock, thereby ensuring work safety.
In addition, by connecting the operator's arm and the indirect hot wire tool by the indirect hot wire auxiliary tool, it is possible to prevent the indirect hot wire tool from being dropped. It is possible to speed up the work by concentrating only on the work without feeling uneasy.

FIG. 1 is a front view showing an overall configuration of an auxiliary tool for indirect hot wire work. FIG. 2 is a front view illustrating a connection mode between the fixed portion and the connection portion, and (a) is a front view illustrating a mode in which the connection portion is connected to the connection portion by a buckle provided in the fixed portion. (B) is the front view which showed the aspect which connects and connects a connection part to the protrusion part provided in the fixing | fixed part. (C) is the front view which showed the aspect which fixes and connects the snap hook of a connection part to the protrusion part provided in the fixing | fixed part. FIG. 3 is a front view showing the overall configuration of the common operation bar. FIG. 4 is a diagram illustrating an attachment portion in the second embodiment. FIG. 5 is a front view illustrating the overall configuration of the common operation bar according to the third embodiment.

  Hereinafter, the auxiliary tool for indirect hot wire work of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, the indirect hot-wire work auxiliary tool 1 includes a fixing portion 2 that can be fixed to an indirect hot-wire tool, and an attachment portion 3 that can be fixed to an operator's arm, The connecting portion 4 is configured to connect the fixing portion 2 and the mounting portion 3.

  The fixing part 2 is constituted by a band 21 attached to the indirect hot wire tool 5 and a bolt 22 for adjusting the attachment diameter of the band 21.

  The band 21 is formed of an insulating metal such as stainless steel, an insulating plastic, or the like. The outer peripheral surface 23 has two connecting holes (not shown) for fixing the connecting portion 4. Is formed in place.

The connecting portion 4 and the fixing portion 2 are connected by passing the tip of the connecting portion 4 through two connecting holes and then connecting the tip to the connecting portion 4 in the vicinity of the connecting hole.
As another connection mode, for example, as shown in FIG. 2A, a belt mechanism (on the outer peripheral surface 23 of the band 21 can be changed in the length of the connection portion 4 from the fixing portion 2 to the attachment portion 3). (Buckle) 24 may be provided, and as shown in (b), a ring-shaped protruding portion 25 protruding outward is provided on the outer peripheral surface 23 of the band 21, and a connecting portion is connected to the protruding portion 25. 4, and as shown in (c), a snap hook 41 provided at the tip of the connecting portion 4 is fixed to the protruding portion 25 similar to (b). Also good.

The attachment portion 3 is insulative and formed in a band shape. A hook-and-loop fastener 33 is provided on the inner side surface 31 and the outer side surface 32, and can be fixed by pressing each other surface. ing.
The connection portion 4 and the attachment portion 3 are fixed to the connection portion 4 by directly sewing the base end side, or a ring-shaped annular portion formed of an insulating material on the base end side of the attachment portion 3 (see FIG. (Not shown) and a snap hook 41 provided on the connecting portion 4 is fixed to the annular portion.

The connecting portion 4 is made of a resin fiber such as nylon formed in a string shape, and its length (the length from the connecting portion of the fixing portion 2 to the connecting portion of the mounting portion 3) l is an indirect activity described later. It is shorter than the distance (predetermined distance) m from the limit brim that defines the safety limit of the line tool 5 to the position where the fixing part 2 is fixed. Moreover, the snap hook 41 is suitably provided in the both ends according to the connection aspect with each part mentioned above.
In addition, the connection part 4 may be formed of a chain of an insulated metal or plastic other than the resin fiber string.

Various tools such as a common operation bar and a Yatco can be used as the indirect hot wire tool 5, but in this embodiment, the common operation bar will be described as an example.
As shown in FIG. 3, the common operation rod 5 is configured to have a distal end portion 51 formed so that various end tools (not shown) can be attached to the axial end portion of the operation rod main body 50. Yes.

  The operation bar main body 52 is a columnar member extending in the vertical direction, and includes an upper bar portion 53 positioned at an upper portion in the axial direction of the operation bar main body 52, an intermediate bar portion 54 positioned below the upper bar portion 53, A lower bar portion 55 having a diameter that can be grasped by a hand of an operator is integrally formed, and is made of an insulating material such as FRP (fiber reinforced plastic).

  Between the upper bar portion 53 and the intermediate rod portion 54 of the operation rod main body 52, a rain water adhering to the upper rod portion 53 flows along the intermediate rod portion 54 and the lower rod portion 55. A rain-cutting collar 56 is provided to prevent this.

  A limit collar 57 is provided between the intermediate bar portion 54 and the lower bar portion 55 of the operation rod main body 52 to prevent an operator from gripping the operation rod main body 52 in the distal direction from a predetermined position. The limit collar 57 is preferably colored red or the like so as to draw the operator's attention.

Between the upper bar portion 53 and the intermediate bar portion 54 of the operation rod main body 52, a protection display portion 54a for alerting a high voltage is provided. The protective display portion 54a is made of an insulator such as plastic and has a yellow surface.
A flange stopper 54 b is provided between the protection display portion 54 a and the limit collar 57 to prevent the limit collar 57 from shifting in the axial direction.

  The lower bar portion 55 is formed with a joint portion 58 formed at its end so as to be connectable to a connection portion of another indirect hot wire tool. In addition, at a predetermined distance m from the limit collar 57, the fixing part 2 of the auxiliary tool for indirect hot wire work 1 is fixed.

The predetermined distance m is equal to the length of the lower bar portion 55 at the longest, but at least the operator can grasp the tip side from the fixing position of the fixing portion 2 so that the operator can fist from the limit collar 57. It has a distance of one.
The predetermined distance m is from the limit collar 57 to the lower bar portion 55 in consideration of the fact that the center of gravity of the shared operation rod is on the distal end side by attaching the distal tool that occupies most of the weight of the shared operation rod 5 to the distal end. It is better to make it shorter than the distance to the intermediate point S.

When the indirect hot-wire work auxiliary tool 1 described above is used while being attached to the common operation rod 5, the connection portion 4 is first connected to the band 21 of the fixing portion 2, and the fixing portion 2 is used as the common operation rod. 5 is fixed to the lower bar portion 55. At this time, the length 1 of the connecting portion 4 is adjusted so as to be shorter than the predetermined distance m from the limit collar 57 of the common operation rod 5 to the position where the fixing portion 2 is fixed.
Next, the connecting part 4 and the attaching part 3 are connected, the attaching part 3 is wound around the operator's arm, and the attaching part 3 is fixed by the hook-and-loop fastener 33 by pressing the inner side face 31 and the outer face 32.

As described above, according to the auxiliary tool for indirect hot-wire work 1, the length 1 of the connecting portion 4 is longer than the predetermined distance m from the limit collar 57 of the common operation rod 5 to the position where the fixing portion 2 is fixed. Since the movement range of the mounting portion 3 is limited to a range in which the length l of the connecting portion 4 is a radius, the operator unexpectedly grasps the tip end side of the limit collar 57 of the common operation rod 5. It is possible to prevent an electric shock.
Moreover, since the operator's arm and the common operation rod 5 are connected by the indirect hot-line work auxiliary tool 1, it is possible to prevent the common operation rod 5 from being dropped.
Furthermore, since the inner side surface 31 and the outer side surface 32 of the attachment part 3 are formed so as to be fixable by the hook-and-loop fastener 33, the attachment part 3 can be attached to the operator's arm with a simple operation.

  In the above-described embodiment, the attachment portion 3 is to fix the inner side surface 31 and the outer side surface 32 by the hook-and-loop fastener 33 and fix it to the operator's arm. You may make it fix to an arm. In the following description of the embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

As shown in FIG. 4, the mounting portion 3 is formed in a clip shape with an insulating plastic, metal, or the like, and includes a housing portion 35 formed so as to surround the operator's arm, and a housing. And a pair of introduction portions 36 formed subsequent to the portion 35.
The accommodating portion 35 is formed in a hollow and substantially cylindrical shape, and two attachment holes that are connected to the connecting portion 4 are formed on the outer peripheral surface 37 thereof.

  The attachment part 3 and the connection part 4 are connected by passing the tip of the connection part 4 through two attachment holes and then connecting the tip to the connection part 4 in the vicinity of the attachment hole. In addition to this, a connection mode similar to the connection between the fixing part 2 and the connection part 4 shown in the first embodiment can be adopted.

  The introduction portion 36 has both ends 36a and 36b warped outward, and an introduction port 38 into which an operator's arm can be inserted is formed between the both ends 36a and 36b. The introduction port 38 is formed so that its size can be freely changed by the elastic force of the introduction portion 36 (reaction force when both ends 36a, 36b of the introduction portion 36 are moved away from each other). ing.

  As described above, the introduction port 38 of the attachment portion 3 is formed such that its size can be freely deformed by the elastic force generated in the introduction portion 36, so that the operator simply inserts his arm into the introduction port 38. Thus, the attachment portion 3 can be fixed to the arm.

  In the above-described embodiment, the lower bar portion 55 of the common operation bar 5 is formed so that it can be simply operated by an operator, but is formed so as to clarify the position held by the operator. It may be a thing.

As shown in FIG. 5, the unevenness | corrugation 6 which shows the position which an operator grips between the limit collar 57 of the common operation stick | rod 5 and the position where the fixing | fixed part 2 of the lower bar | burr part 55 is fixed is formed.
The concave and convex portions 6 are formed with four concave portions 61 in order from the front end side according to the angles of the index finger, the middle finger, the ring finger, and the little finger when the operator grips the lower bar portion 55 of the insulating operation rod, Furthermore, it is formed from five convex parts 62 which become partition walls of the concave parts 61 according to the interval of each finger.

As described above, the unevenness 6 is formed between the limit collar 57 of the common operation rod 5 and the position where the fixing portion 2 is fixed, thereby clarifying the position where the operator holds the common operation rod 5. Therefore, it is possible to prevent the operator from gripping the common operation rod 5 at a position where there is a risk of electric shock exceeding the limit collar 57.
Further, since the grip force is increased by the unevenness 6, it is possible to prevent the common operation rod 5 from sliding off from the operator's hand.

DESCRIPTION OF SYMBOLS 1 Auxiliary tool for indirect hot wire work 2 Fixing part 3 Attaching part 31 Inner side surface 32 Outer side surface 33 Surface fastener 35 Storage part 36 Introduction part 38 Introduction port 4 Connecting part 5 Indirect hot line tool (common operation stick)
57 Limit collar 6 Concavity and convexity m Predetermined distance l Length of connecting part

Claims (1)

The fixing part formed so as to be fixable to the lower bar-like part below the limit brim that defines the safety limit of the indirect hot wire tool , the mounting part formed so as to be fixable to the operator's arm, and the fixing A string-like connecting part that connects the part and the mounting part,
The length of the connecting portion, an indirect hot working aid, characterized in that shorter than the distance to the position where the fixing portion is fixed from the position where the limit flange of the indirect active line tool is provided.

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