JP6488747B2 - Electric wire fixing tool and electric wire fixing method - Google Patents

Description

  The present invention relates to an electric wire fixing tool and an electric wire fixing method for fixing a plurality of electric wires.

  It is stipulated that facilities should be installed so that no tension is applied to the connection point between the branching source wire (main line) and the branched wire (branch line) in the construction of the intermediate span of the span of the overhead wire work. Conventionally, when branching halfway between spans in overhead wire construction, a vinyl-coated aluminum binding wire with a diameter of 2.0 mm is wrapped around the trunk line and the branch line at a location about 15 cm away from the connection point five times or more. The branch lines were fixed to each other.

  As for the vinyl-coated aluminum binding wire, one of the binding wires folded in half was held by an insulating Yatco, and another one was wound using a binding hammer. For this reason, two workers are required to perform the work, and the two workers need to work together.

  For example, when fixing a trunk line and a branch line by a line spacer method, the connection point between the branch source wire (main line) and the branched wire (branch line), and the branch line and the branch destination wire (trunk line) ) Was tied and fixed at two places of connection points. As a method of fixing the electric wires, there is a method of winding a lashing wire in addition to a method of winding a vinyl-coated aluminum binding wire.

  Conventionally, as a related technique, for example, a loop portion at the center is wound around the neck portion of the insulator, and the loop from the loop portion to both ends is spirally supported by a single arm brace. In addition, there has been a technique that enables the electric wire to be securely fixed to the insulator (see, for example, Patent Document 1 below).

  Further, as a related technique, conventionally, for example, a branching sleeve clip provided with a sleeve gripping part that sandwiches a branching sleeve and a wire gripping part that can simultaneously hold a trunk wire and a branching wire between a pair of sandwiching members. There has been a technique for preventing the branch sleeve from falling (for example, see Patent Document 2 below).

JP 2012-28053 A JP 2014-147141 A

  However, since the work by the method of winding the vinyl-coated aluminum bind wire as in the conventional technique described above uses a dedicated indirect hot wire tool such as a bind hammer, it takes time to work depending on the skill level. There is a problem that the efficiency of the work varies depending on the skill level of the worker, not the work that can be easily performed.

  Further, the work by the method of winding the vinyl-coated aluminum binding wire as in the conventional technique described above has a problem that the worker's fatigue is great, such as the operator's arm holding the binding wire folded in half becomes slack. It was. In particular, branching over the span of overhead wire work is an operation that is performed outdoors, and there is a problem that the work takes a long time depending on the weather, such as during a strong wind, and the worker's fatigue is further increased.

  In order to perform the work by the method of winding the vinyl-coated aluminum binding wire, it is necessary for two or more workers to work together, and the number of workers involved in the work increases, resulting in poor work efficiency. There was a problem.

  An object of the present invention is to provide an electric wire fixing tool and an electric wire fixing method capable of improving work efficiency related to an operation of fixing an electric wire in order to solve the above-described problems caused by the prior art.

  In order to solve the above-described problems and achieve the object, an electric wire fixture according to the present invention includes a pair of pinch members that are pivotally provided at one end with a fulcrum as a fulcrum. A pinch portion sandwiching a fixed object therebetween, one end portion of the pair of pinch members, and a hook portion having a hook-like shape provided parallel to the rotational axis direction of the pair of pinch members, A guide portion is provided that extends along a direction parallel to the rotational axis direction and connects the hook portion and the pinch portion.

  In addition, the electric wire fixing method according to the present invention includes a pair of pinch members provided so that one end portion thereof is rotatable with the fulcrum portion serving as a fulcrum, and a pinch portion that sandwiches an object to be fixed between the pair of pinch members; One end portion of the pair of pinch members, a hook portion having a hook-like shape provided parallel to the rotation axis direction of the pair of pinch members, and a direction parallel to the rotation axis direction An electric wire fixing method using an electric wire fixing tool provided with an induction part that connects the hook part and the pinch part, and hooks the hook part to the fixing object, By pinching the other end of the pinch member, the gap between the pair of pinch members is opened, and in the state where the hook part is hooked on the fixed object, the pinch part is pressed against the fixed object, Interval is opened Positioning the object to be fixed between the pair of pinch members, to release the holding of the other end, characterized in that.

  According to the wire fixing tool and the wire fixing method according to the present invention, there is an effect that it is possible to improve the work efficiency related to the work of fixing the wire.

It is explanatory drawing which shows the electric wire fixing tool of embodiment concerning this invention. It is explanatory drawing (the 1) which shows the example of attachment object. It is explanatory drawing (the 2) which shows the example of attachment object. It is explanatory drawing (the 3) which shows the example of attachment object. It is explanatory drawing (the 4) which shows the example of attachment object. It is explanatory drawing (the 1) which shows the work procedure which fixes an electric wire with the electric wire fixing method concerning this invention using the electric wire fixing tool of embodiment concerning this invention. It is explanatory drawing (the 2) which shows the operation | work procedure which fixes an electric wire with the electric wire fixing method concerning this invention using the electric wire fixing tool of embodiment concerning this invention. It is explanatory drawing (the 3) which shows the operation | work procedure which fixes an electric wire with the electric wire fixing method concerning this invention using the electric wire fixing tool of embodiment concerning this invention. It is explanatory drawing (the 4) which shows the operation | work procedure which fixes an electric wire with the electric wire fixing method concerning this invention using the electric wire fixing tool of embodiment concerning this invention. It is explanatory drawing (the 5) which shows the operation | work procedure which fixes an electric wire with the electric wire fixing method concerning this invention using the electric wire fixing tool of embodiment concerning this invention. It is explanatory drawing which shows an example of the attachment state of the wire fixing tool of embodiment concerning this invention.

  Exemplary embodiments of a wire fixing tool and a wire fixing method according to the present invention will be described below in detail with reference to the accompanying drawings.

(Configuration of wire fixing tool)
First, the configuration of the electric wire fixture according to the embodiment of the present invention will be described. Drawing 1 is an explanatory view showing the electric wire fixture of an embodiment concerning this invention.

  In FIG. 1, an electric wire fixture 100 according to an embodiment of the present invention includes a hook part 110, a pinch part 120, and a guide part 130. The hook portion 110 includes a hook member that is curved like a hook and a pressing member that faces the hook. The hook member and the pressing member face each other along the diameter direction of the electric wire to be fixed by the electric wire fixing tool 100 of this embodiment. The tip 111 of the hook member protrudes toward the pinch portion 120 side.

  The pinch part 120 includes a pair of pinch members 121 whose one end is curved like a bowl. One end of each pinch member 121 constituting the pair of pinch members 121 (the end on the upper side in FIG. 1) is curved in a hook shape toward each other. The other end of each pinch member 121 (the end on the lower side in the drawing in FIG. 1) is bent in a direction opposite to the bending direction of the one end. Each of the pair of pinch members 121 is provided so as to be swingable about a fulcrum part 122 provided between one end and the other end. The positional relationship between the fulcrum parts 122 is not fixed.

  In the pinch part 120, one end part side from the fulcrum part 122 is urged so that one end parts approach each other and the other end parts separate from each other by the elastic force of the members forming the pair of pinch members 121. . The pinch members 121 are arranged in a state of being arranged along the length direction of the electric wire to which the electric wire fixture 100 is attached, and constitute the pinch portion 120. In each pinch member 121, a portion from the fulcrum portion 122 to one end portion is a grip portion that grips an electric wire to be fixed. The gripping portion has a shape in which a portion between the fulcrum portion 122 and one end portion is curved away from each other, and holds the electric wire in a space formed by the bending.

  The pair of pinch members 121 swings around the fulcrum part 122 as a fulcrum so that the one end part is separated when an external force is applied closer to the other end part than the fulcrum part 122. When the pair of pinch members 121 are released from the external force, the pair of pinch members 121 swings so that the one end portions come close again and the other end portions are separated from each other by its own elastic force. That is, the pair of pinch members 121 are so-called clothespins that swing around the fulcrum portion 122 when the other end portions are pinched together from the outside and open one end portion only while being pinched. The configuration of

  The hook part 110 and the pinch part 120 are connected by a guide part 130. In the electric wire fixture 100 of this embodiment, the guide part 130 is integrally formed with the hook part 110 and the pinch part 120 using a single continuous wire-like member.

  In the electric wire fixing device 100, the maximum value of the thickness of the electric wire that can be gripped by the pinch portion 120 (see symbol A in FIG. 1) is the position of the apex and the fulcrum portion due to the pinch portion 120 being bent like a bowl. It is determined by the length between 122. That is, the pinch part 120 can fix an electric wire whose value obtained by adding the diameters of two electric wires to be fixed is equal to or less than the dimension A.

  Further, the length between the end portion of the hook portion 110 on the pinch portion 120 side and the end portion of the pinch portion 120 on the hook portion 110 side (see symbol B in FIG. 1), that is, the pinch portion 120 and the hook portion. The separation distance from 110 is preferably about the same as dimension A. By setting the dimension A and the dimension B to be comparable, as will be described later, when the hook part 110 of the wire fixture 100 is hooked on the electric wire, the hook part 110 can be stably hooked on the electric wire. . The dimension B is not necessarily the same length as the dimension A, and is preferably equal to or greater than the dimension A.

(Example of attachment target of the wire fixing tool 100)
Below, the example of attachment object used as the attachment object of the wire fixing tool 100 of embodiment concerning this invention is demonstrated. 2, FIG. 3, FIG. 4 and FIG. 5 are explanatory views showing examples of attachment targets.

  2 and 3, as examples of attachment targets, branch positions between a branch line branched in the middle of the horizontal line and a branching source electric wire (trunk line) of the branch line are shown. In FIG. 2, the example of attachment object branched horizontally in the middle using the high pressure horizontal intermediate branch polymer spacer 201 is shown. In FIG. 3, the example of attachment object branched horizontally in the middle using the high pressure support metal 301 is shown.

  2 and FIG. 3, conventionally, a vinyl-coated aluminum bind wire 204 having a predetermined thickness (for example, about 2.0 mm) is provided at a branch position between the branch line 202 and the trunk line 203. The branch line 202 and the trunk line 203 are fixed by winding a predetermined number of times (for example, five times) or more.

  In FIG. 4, the branch position of the branch line 202 and the trunk line 203 at the time of branching on the way between spans using the line spacer 401 is shown as an example of attachment object. As shown in FIG. 4, when branching in the middle of the span using the line spacer 401, two locations on the both ends of the line spacer 401 are set as attachment targets for one branch line 202.

  Conventionally, a vinyl-coated aluminum binding wire 204 having a predetermined thickness (for example, about 2.0 mm) is also provided at two branch positions on both ends of the line spacer 401, for an attachment target illustrated in FIG. Is wound a predetermined number of times (for example, 5 times) or more to fix the branch line 202 and the trunk line 203.

  In FIG. 5, the example of attachment object in case the high voltage | pressure branch sleeve cover 501 is given to the branch position of the branch line 202 and the trunk line 203 is shown. In this case, outside the high-pressure branch sleeve cover 501, the branch line 202 and the trunk line 203 drawn from the high-pressure branch sleeve cover 501 to the high-pressure intermediate support metal 502 are fixed. For such work objects, conventionally, the branch line 202 and the trunk line 203 have been fixed using a predetermined bind-type electric wire fixing tool 100.

(Installation procedure of the wire fixing tool 100)
Next, a procedure for attaching the wire fixing tool 100 according to the embodiment of the present invention will be described. 6, 7, 8, 9, and 10 show work procedures for fixing the wires 202 and 203 by the wire fixing method according to the present invention using the wire fixing tool 100 according to the embodiment of the present invention. It is explanatory drawing shown. The electric wire fixture 100 is attached in the vicinity of a position where the two electric wires 202 and 203 (the branch line 202 and the main line 203) are connected in advance. When attaching the wire fixing tool 100, first, using an indirect hot wire tool, the hook member in the hook portion 110 of the wire fixing device 100 is fixed to the wires 202, 203 to be fixed above the wires 202, 203. (See FIG. 6). At this time, the worker can stand on the lower side of the electric wires 202 and 203 and only hook the hook member in the hook portion 110 to the electric wires 202 and 203, and can hook the hook member on the electric wires 202 and 203 from the upper side. .

  As an indirect hot wire tool used for hooking the hook member in the electric wire fixture 100 to the electric wires 202 and 203, for example, an indirect hot wire tool called an insulating Yatco can be used (see reference numeral 601 in FIG. 6). . Or as an indirect hot wire tool used in order to hook the hook member in the electric wire fixing tool 100 to the electric wires 202 and 203, the holding fitting attached to the front-end | tip of the insulation operation rod and the said insulation operation rod can be used, for example. Or as an indirect hot wire tool used in order to hook the hook member in the electric wire fixing tool 100 to the electric wires 202 and 203, for example, an insulation operation rod and a hook-shaped attachment tool attached to the tip of the insulation operation rod may be used. Good.

  In the electric wire fixing device 100, the tip of the hook member protrudes toward the pinch portion 120, and the hook portion 110 and the pinch portion 120 are integrated, so the hook portion 110 is hooked on the electric wires 202 and 203. In the state, the hook member can be reliably hooked on the electric wires 202 and 203 by its own weight (particularly the weight of the pinch portion 120). Specifically, in the wire fixing tool 100, since the hook part 110 and the pinch part 120 are connected to both ends of the guide part 130, the hook part 110 in a state of being hooked on the electric wires 202 and 203 is A force pulling downward in the vertical direction acts by the weight of the pinch part 120 and the guide part 130. Thereby, the hook part 110 can be reliably hooked on the electric wires 202 and 203.

  In addition, since the tip of the hook member protrudes toward the pinch portion 120, the hook member can be reliably hooked on the electric wires 202 and 203 regardless of the posture of the electric wire fixture 100. That is, when the weights of the pinch unit 120 and the guide unit 130 are added, the posture of the hook unit 110 is inclined so that the pinch unit 120 side is directed downward with respect to the posture in which the attachment of the electric wire fixing device 100 is completed. In this case, the hook portion 110 can be reliably hooked to the electric wires 202 and 203 by the tip protruding to the pinch portion 120 side.

  As described above, the wire fixing device 100 according to the present embodiment hooks the wire fixing device 100 temporarily and reliably on the electric wires 202 and 203 without performing any special fixing work, and the wire fixing device 100 is connected to the electric wires 202, 203. It can be temporarily fixed to 203. Thereby, the operator can calmly prepare for moving to the next work after hooking the electric wire fixture 100 on the electric wires 202 and 203.

  Next, in a state where the electric wire fixing device 100 is hooked on the electric wires 202 and 203, the other end portions of the pinch portion 120 are put together from the outside by using an indirect hot wire tool (insulating YATCO). When the other end portions of the pinch portion 120 are collectively sandwiched from the outside, the pair of pinch members 121 swing around the fulcrum portion 122 so that the one end portions are separated from each other. Thereby, the space | interval of the one end parts in a pair of pinch member 121 opens, and the space of a holding part is open | released via one end part.

  The operator holds the other end portions so that the one end portions are separated from each other and the space of the gripping portion is opened, and the electric wires 202 and 203 to be attached are placed between the one end portions. In FIG. 7, an opening 801 that opens the space of the gripping part is pressed (see FIGS. 7 and 8). And until the electric wires 202 and 203 are introduced into the space in the gripping part through the opening 801, the electric wire fixture 100 is pressed as it is against the electric wires 202 and 203 (see FIGS. 8 and 9). In FIG. 8, a cross section of the electric wire fixing tool 100 in a state where the electric wires 202 and 203 are introduced into the space in the gripping part and a portion of the electric wires 202 and 203 fixed by the electric wire fixing tool 100 is cut. , 203 as viewed along the length direction.

  In the wire fixing tool 100, since the hook part 110 is first hooked on the electric wires 202 and 203 and temporarily fixed, the hook part 110 hooked on the electric wires 202 and 203 is rotated around the pinch part 120 side. Can be easily introduced into the space in the gripping portion by simply pressing the wire 202, 203 from below to the wire 202, 203 upward. Moreover, since the one end part of the pinch member 121 is curving in the shape of a bowl, the electric wires 202 and 203 can be smoothly introduced into the space in the gripping part simply by pressing the opening 801 against the electric wires 202 and 203.

  Moreover, in the electric wire fixing tool 100, since the hook part 110 is hooked on the electric wires 202 and 203 first and fixed temporarily, even if it is work by an indirect hot wire construction method, an operator should work calmly. Can do. Specifically, even when working alone, the indirect hot line tool used to fix the hook part 110 is replaced with an indirect hot line tool that grips the other end without rushing, and the pinch part It is possible to shift to an operation of gripping 120.

  Then, the indirect hot-wire tool is removed from the other end portion in a state where the two electric wires 202 and 203 to be fixed are accommodated in the space of the pinch portion 120. When the pair of pinch members 121 are released from the external force by the elastic force of the material forming the pair of pinch members 121, the ends of the pair of pinch members 121 are brought close to each other as they are (see FIG. 9). Thereby, the electric wires 202 and 203 can be securely sandwiched and fixed by the pinch portion 120.

  Thereafter, the pinch part 120 in a state where the electric wires 202 and 203 are sandwiched is sandwiched from outside by using an indirect hot wire tool to be gripped (see FIG. 10). It is preferable that the pinching position is one end of the pinch member 121 that is curved like a bowl. Thereby, the gap between the pinch member 121 and the electric wires 202 and 203 can be eliminated, the pinch portion 120 can be securely attached to the electric wires 202 and 203, and the pinch portion 120 can be easily attached to the electric wires 202 and 203. Can be confirmed.

  Depending on the site, the diameter of the branch line 202 may be smaller than the diameter of the trunk line 203. The electric wire fixture 100 according to the embodiment of the present invention can easily and reliably fix the branch line 202 and the trunk line 203 by the same simple operation as described above even in such a field.

  FIG. 11 is an explanatory diagram showing an example of an attachment state of the wire fixing device 100 according to the embodiment of the present invention. As described above, in the electric wire fixture 100 according to the embodiment of the present invention, the positional relationship between the fulcrum portions 122 in the pair of pinch members 121 is not fixed. For this reason, when the value obtained by adding the diameters of the two electric wires 202 and 203 to be fixed is smaller than the dimension A, the electric wire fixing device 100 has the electric wires 202 and 203 in the space of the gripping portion as shown in FIG. The position of the fulcrum portion 122 can be relatively shifted in accordance with the diameter of the fulcrum.

  In the pinch part 120, an urging force is applied to maintain the shape by the elastic force of the wire-like member forming the electric wire fixture 100. With this urging force, in the pinch portion 120 in a state where the two electric wires 202 and 203 are gripped, a force that urges one end side of the fulcrum portion 122 in the direction of opening each other acts. And since the positional relationship of the fulcrum part 122 in a pair of pinch member 121 is not fixed, the force urged | biased in the opening direction acts as a force urged | biased in the direction which cross | intersects the fulcrum part 122. FIG. Thereby, even if an operator does not perform special work, the electric wires 202 and 203 can be easily and reliably fixed regardless of the thickness of the electric wires 202 and 203 to be fixed.

  As described above, the wire fixing device 100 according to the embodiment of the present invention includes the pair of pinch members 121 having one end portion rotatably provided with the fulcrum portion 122 as a fulcrum, and the pair of pinch members 121. A pinch part 120 that sandwiches the object to be fixed, a hook part having a hook-like shape provided on one end of the pair of pinch members 121 and parallel to the rotational axis direction of the pair of pinch members 121 110 and a guide portion 130 that extends along a direction parallel to the rotational axis direction and connects the hook portion 110 and the pinch portion 120 to each other.

  According to the wire fixing tool 100 of the embodiment according to the present invention, the electric wires 202 and 203 can be sandwiched by the pinch portion 120 while the hook portion 110 is hooked on the electric wires 202 and 203. Even so, the electric wires 202 and 203 can be fixed easily and reliably.

  Further, according to the wire fixing tool 100 of the embodiment of the present invention, after the hook portion 110 is hooked on the electric wires 202 and 203, the electric wire fixing device 100 is rotated with the hook portion 110 as a fulcrum, and the pinch portion 120 is turned into the electric wire 202. , 203 can be fixed to each other simply by pressing them, so that anyone can easily attach even in a place where the space available for attachment work is narrow.

  Moreover, according to the electric wire fixing tool 100 of this embodiment, since the electric wires 202 and 203 can be fixed by being pinched like a clothespin by the pinch portion 120, the force of the operator is reduced. Adjustment is unnecessary, and the electric wires 202 and 203 can be fixed without depending on the operator.

  Further, according to the wire fixing tool 100 of the embodiment according to the present invention, the wires 202 and 203 are firmly fixed without being influenced by the operator because the fixing is performed by the elastic force of the material forming the wire fixing device 100. Can be fixed.

  Moreover, since the electric wire fixing tool 100 according to the embodiment of the present invention can easily fix the electric wires 202 and 203 by simply hooking the hook portion 110 on the electric wires 202 and 203 and sandwiching the hooks by the pinch portion 120, the electric wires An operator's burden (fatigue etc.) in the operation | work which fixes 202,203 can be reduced.

  As described above, the electric wire fixing tool and the electric wire fixing method according to the present invention are useful for the electric wire fixing tool used for the operation of fixing two electric wires. It is suitable for the wire fixing tool used for the work which fixes the electric wire.

DESCRIPTION OF SYMBOLS 100 Electric wire fixture 110 Hook part 120 Pinch part 121 Pinch member 130 Guide part

Claims (5)

A pair of pinch members provided so that one end of the fulcrum portion is pivotable, and a plurality of electric wires are sandwiched between the pair of pinch members;
A hook portion that is provided on one end of the pair of pinch members and parallel to the rotational axis direction of the pair of pinch members and has a hook-like shape to hook the plurality of electric wires;
A guide portion extending along a direction parallel to the rotational axis direction, and connecting the hook portion and the pinch portion;
An electric wire fixture characterized by comprising:   The electric wire fixture according to claim 1, wherein the plurality of electric wires includes a main line and a branch line. An electric wire fixing method for fixing a plurality of electric wires using an electric wire fixing tool,
The electric wire fixing device includes a pair of pinch members having one end portion rotatably provided with a fulcrum portion as a fulcrum, and a pinch portion for sandwiching the plurality of electric wires between the pair of pinch members, and the pair of pinches A hook portion having a hook-like shape provided on one end of the member and parallel to the rotational axis direction of the pair of pinch members, and extending along a direction parallel to the rotational axis direction; A guide part for connecting the hook part and the pinch part;
A first step of hooking the hook portion onto the plurality of electric wires;
A second step of opening the gap between the pair of pinch members by sandwiching the other end of the pair of pinch members;
A third step of positioning the plurality of electric wires between the pair of pinch members spaced apart by pressing the pinch portion against the plurality of electric wires in a state where the hook portion is hooked on the plurality of electric wires. When,
A fourth step of releasing the clamping of the other end,
An electric wire fixing method comprising: Wherein the plurality of wires, wire fixed method according to claim 3, characterized in that it consists of a trunk and branch lines.   The wire fixing method according to claim 3 or 4, wherein at least one of the first step, the second step, and the third step is performed using an indirect hot wire tool.

Images