JP5165022B2 - Support for wire installation member - Google Patents

Description

  The present invention relates to a support for a wire erection member spanned between a pin insulator attached to a brace and a tension insulator attached to a retention clamp.

  As shown in FIG. 11, in order to install the overhead wire 100 between the arm brackets 102 fixed to the utility pole 101, a pin insulator 110 is attached to the arm bracket 102, and the overhead wire 100 is separated from the arm bracket 102 and the overhead wire 100 is attached to the retention clamp 120. A support tool (hereinafter, mainly referred to as “support tool”) 130 and a tension insulator 140 are bridged between the arm metal 102 and the retaining clamp 120.

  The pin insulator 110 has a shaft portion 112 protruding from the lower surface of the main body portion 111 having a constricted portion at the upper portion, and a flange portion 113 is provided at an intermediate portion of the shaft portion 112, and a bolt portion is provided at a lower end portion of the shaft portion 112. 114 is formed. The pin lever 110 is in a vertical orientation, the shaft portion 112 is inserted into a communication hole formed in the upper surface and the lower surface of the arm metal 102, and the flange portion 113 is directed to the upper surface of the arm metal 102. The lower end portion of the portion 113 protrudes from the lower surface of the arm metal 102. The nut 115 is fastened to the bolt part 114 protruding from the lower surface of the arm metal 102, and the pin insulator 110 is fixed to the arm metal 102 by the hook part 113 and the nut 115 sandwiching the arm metal 102. Note that an insulator binding 116 that holds the overhead electric wire 100 is hooked on the constricted portion of the pin insulator 110.

  Further, the tension insulator 140 is in a horizontal orientation, and a retaining metal 141 and a support 130 are attached to one end and the other end. One end of the retaining metal 141 is connected to the retaining clamp 120. Note that the retaining clamp 120 and the retaining member 141 are covered with a protective cover (not shown) in order to prevent birds and the like from coming into contact with each other.

  The support 130 is generally referred to as a strap and is formed by molding an elongated rectangular plate-like member, and is spanned between the arm metal 102 and the tension insulator 140. Therefore, the other end portion of the tension insulator 140 is formed with a pre-cracked groove portion, and one end portion of the support tool 130 is sandwiched between the groove portions. A communication hole is formed in the other end portion of the tension insulator 140 and one end portion of the support tool 130, and the support tool 130 and the tension insulator 140 are connected by inserting a cotter pin into the communication hole. Is done.

  In addition, the other end of the support 130 is applied to the upper surface and the lower surface of the arm metal 102, respectively. The support 130 is formed with a connection hole communicating with the communication hole formed on the upper surface and the lower surface of the arm metal 102, and the shaft portion 112 of the pin lever 110 is inserted into the connection hole. , Supported by the brace 102. Thus, the support 130 is twisted (twisted) at the intermediate portion because one end is oriented vertically and the other end is oriented horizontally. Further, the support tool 130 is used in a set of two, the other end of which is sandwiched between the upper surface of the arm metal 102 and the flange 113 of the pin lever 110 and the other of the support tool 130 is sandwiched between the lower surface of the arm metal 102 and the nut 115. Is done.

  In short, the overhead electric wire 100 is installed between the arm brackets 102 fixed to the electric pole 101 by the pin insulator 110, the retention clamp 120, the tension insulator 140, the anchor fitting 141, and the support tool 130.

  Patent Document 1 discloses an arm metal that can be attached with a support (described as “mounting bracket” in Patent Document 1) without removing an existing pin lever attached to the arm metal from the arm metal. An attachment device is described.

  As shown in FIG. 12, the armrest attachment device includes a plate-like attachment fitting 200 and bolts (not shown) that are stacked on the upper and lower surfaces of an armrest (not shown in FIG. 12). The mounting bracket 200 is provided with an engagement notch 201 into which a shaft portion of a pin insulator (not shown) is fitted at a central portion, and through holes 202 through which bolts pass are provided at both ends. Therefore, the mounting bracket 200 is used as a set of two pieces, and two sets, that is, four pieces are used in combination.

  Each set (two pieces) of the mounting brackets 200 has the engagement notches 201 in the opposite directions, and is placed on the upper and lower surfaces of the arm metal with the shaft portion of the pin lever interposed therebetween. A bolt passes from the through hole 202 of the pair of mounting brackets 200 superimposed on the upper surface of the arm metal to the through holes 202 of the two mounting brackets 200 superimposed on the lower surface of the arm metal, and the nut is fastened to the bolt. Then, the bracelet mounting device is fixed to the bracelet.

Japanese Utility Model Publication No. 6-17310

  The overhead wire 100 is basically bridged between the arm metal 102 and the arm metal 102. Therefore, the support tool 130 is directed in a direction protruding from both side surfaces of the arm metal 102, and the shaft portion 112 of the pin lever 110 is inserted into the connection hole of the support tool 130. However, there is a case where the overhead wire 100 is erected up to a certain arm 102 and is not erected from the arm 102 to the front. In such a case, the support 130 is directed toward the side without the overhead wire 100. It is not attached to the brace. In some cases, the aerial wire 100 erected up to a certain brace 102 is further extended at a later date. In such a case, an operation of attaching a newly added support tool 130 to the arm metal 102 is performed.

  In order to newly attach the support tool 130 shown in FIG. 11 to the arm metal 102, after a power failure, the shaft portion 112 of the pin insulator 110 is removed from the communication hole of the arm metal 102, and the support tool 130 to be added is added. The shaft portion 112 of the pin insulator 110 must be inserted through the connecting hole. However, it is not preferable to cause a power failure, and the insulator binding 116 holding the overhead electric wire 100 is hooked on the constricted portion of the pin insulator 110, and a large load is applied to the pin insulator 110. Since the pin insulator 110 must be lifted by the length of the shaft portion 112 of the pin, the additional support 130 is attached to the arm metal 102 by removing the shaft portion 112 from the communication hole of the arm metal 102. Work is not easy.

  In addition, in order to attach the support 130 to the brace 102 without causing a power failure, a limited contractor possessing a specific license uses special tools, or attaches protective equipment for preventing a ground fault. It must be done and cannot be dealt with early.

  Moreover, although the armrest attachment apparatus described in Patent Document 1 can be attached without removing the shaft portion of the pin insulator from the communication hole of the armrest, After fitting the shaft portion of the pin insulator into the engagement notch 201, an operation such as passing a bolt through each through hole 202 is required. Therefore, this arm bracket attachment device cannot easily attach the mounting bracket 200 to the arm bracket.

  Therefore, the present invention mainly aims to provide a support for a wire erection member that can be easily attached to the shaft portion of the pin insulator even if the pin insulator is already attached to the armrest. To do.

The support fitting for the electric wire erection member according to the present invention is bridged between the shaft part of the pin insulator inserted through the armhole communication hole and the tension insulator connected to the retaining clamp for holding the overhead electric wire. A support for an electric wire erection member, wherein a rectangular board portion on the tension insulator side and a first flange portion on the pin insulator side are integrally provided, and the first flange portion includes continuously to the short side of the substrate portion, and folded a first stick portion protruding pin insulators side a narrower width than the base plate portion, the distal end side of the first stick part to the substrate side first a first hook portion, said a first opening provided between the first engaging portion and the substrate portion is provided with a second hook swingably supported on the substrate portion And a second base portion that is pivotally supported by the substrate portion, a second stick portion that protrudes from the base portion, and the second stick portion. A second hooking portion in which the tip side of the tick portion is folded back to the base side, and a second opening provided between the second hooking portion and the base portion. In the state where the second latching portion is separated from the first latching portion, the first opening and the second opening are opposed to each other, and the first opening is opened. And the second hooking portion overlaps the distal end side of the first stick portion, and the second stick portion swings so as to close the first opening, thereby The first opening is opened and closed, and the second hook-like portion closes the first opening on the side surface of the first stick portion and the side surface of the second stick portion. Each of the latching portions is provided with a latching portion for latching the first latching portion and the latching portion .

According to the support for the wire erection member, even after the pin insulator is fixed to the arm, the pin insulator is slightly raised from the arm by the thickness of the first flange, By exposing the shaft portion of the lever, the first hook-like portion of the newly added support member for the wire laying member can be hooked on the shaft portion of the pin lever. That is, the support for the wire erection member is an opening in which the shaft portion of the pin insulator is provided in the first hook-like portion of the support for the wire erection member with the pin insulator slightly raised. The first hook-shaped portion hooks the shaft portion of the pin lever by being relatively passed through and positioned within the hook portion.

Further , according to the support for the wire erection member, the second hook-shaped portion pivotally supported by the substrate portion includes a base portion pivotally supported by the substrate portion and a second stick portion protruding from the base portion. And a second latching portion in which the tip end side of the second stick portion is folded back to the base side, and a second opening provided between the second latching portion and the base portion. With the second latching portion being separated from the first latching portion and facing the first opening and the second opening, the shaft portion of the pin insulator is formed in the opened opening. The second hook-shaped part turns, the second hooking part overlaps the tip end side of the first stick part, and the second stick part is the first opening. parts in a state of closing the shaft portion of the pin insulator is sandwiched between the first stick and a second stick part, rigidly to the first hook portion and the second hook portion It is locked.

Further, according to the support for the wire installation member, on the side of the first stick part and the side surface of the second stick part, the first and second shock stop portion, respectively it is provided Accordingly, by turning the second hook element, when closing the first opening, the second hook portion is衝止the first衝止portion, the first hook portion is first The second hook-shaped portion is prevented from turning too much by hitting the second hitting portion. The first hook portion is衝止the second衝止part, that the second engagement portion is衝止the first衝止portion, the shaft portion of the pin insulator is first hooks Jo portion and also by applying a load to the second hook-like, and the first hook portion and the second hook portion not spread, the second hook-like portion and the first hook-shaped portion of the pin insulators Maintain the state where the shaft is hooked.

  Further, in the support for an electric wire erection member according to the present invention, the base plate portion has a central portion so that the short side portion on one end side faces the vertical direction and the short side portion on the other end side faces the horizontal direction. It may be twisted with.

According to the support for the wire erection member, the portion to which the tension insulator is fixed is directed in the vertical direction, and the portion to be fixed to the brace is directed in the horizontal direction, so that the short side portion on one end side is Fit into the vertical groove portion of the tension insulator and place the first hook-shaped portion provided on the short side of the other side to the upper surface of the armature to connect the shaft portion of the pin insulator be able to.

  Further, in the support for an electric wire erection member according to the present invention, the substrate portion may be bent at a central portion.

  According to the support for the wire erection member, even if the tension insulator is positioned below the upper surface of the arm metal and faces the side surface of the arm metal, the tension insulator and the shaft portion of the pin insulator are connected to each other. It can connect suitably.

  According to the present invention, an arm is provided by providing a support for a wire erection member in which a base portion and a hook-like portion are provided integrally, and the hook-like portion includes a stick portion, a hooking portion, and an opening portion. By slightly raising the pin insulator already attached to the gold by the thickness of the support for the wire erection member, a new support for the wire erection member can be added. A new overhead wire can be easily extended from the end of the overhead wire.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a first embodiment of a support for a wire erection member according to the present invention, wherein (a) is a plan view, (b) is a front view, (c) is a left side view, and (d) is a perspective view. . The state before the operation | work which extends an overhead electric wire using the support tool for electric wire construction members which concerns on this invention is shown, (a) is a principal part top view, (b) is a front view. The state of the first operation | work which extends an aerial electric wire using the support tool for electric wire construction members which concerns on this invention is shown, (a) is a principal part top view, (b) is a front view. The state of the next operation | work which extends an overhead electric wire using the support tool for electric wire construction members which concerns on this invention is shown, (a) is a principal part top view, (b) is a front view. The state of the next operation | work which extends an overhead electric wire using the support tool for electric wire construction members which concerns on this invention is shown, (a) is a principal part top view, (b) is a front view. The state of the final operation | work which extends an aerial wire using the support tool for electric wire construction members which concerns on this invention is shown, (a) is a front view, (b) is the support tool used additionally in this operation | work. FIG. It is a perspective view which shows 2nd Embodiment of the support tool for electric wire construction members which concerns on this invention. It is a perspective view which shows 3rd Embodiment of the support tool for electric wire construction members which concerns on this invention. It is a perspective view showing the 1st reference example of the support for electric wire construction members concerning the present invention. It is a perspective view which shows the 2nd reference example of the support tool for electric wire construction members concerning the present invention. It is a front view which shows the state of the overhead electric wire constructed by the support for the conventional electric wire construction members on the brace. It is a perspective view which shows the support for conventional electric wire construction members (attachment bracket of a brace attachment apparatus).

  A first embodiment of a support for an electric wire construction member according to the present invention (hereinafter referred to as “support”) will be described with reference to FIGS. 1 to 6. In addition, the same part as the past is attached | subjected and demonstrated with the same code | symbol.

  This support is bridged between the shaft portion 112 of the pin lever 110 inserted into the communication hole of the arm metal 102 and the tension lever 140 connected to the tension clamp 120. In the case where the end of the already installed overhead wire 100 is further extended, it can be suitably used.

  That is, as shown in FIG. 1, the support has a rectangular plate-like substrate portion 1 on the tension insulator 140 side and a hook-like portion on the pin insulator 110 side (hereinafter referred to as “first hook-like portion”) 10. Are integrally provided by integral molding or the like. In FIG. 1, the lower surface side of the support member that is directed to the upper surface of the arm metal 102 is drawn upward. Here, the surface drawn on the upper side is referred to as the inner surface, and the surface drawn on the lower side. Is called the outer surface.

  And one short side part of the board | substrate part 1 is inserted | pinched by the groove part of the tip crack of the tension insulator 140, and the connection hole 2 is formed. Since the groove portion of the tension insulator 140 is formed in the vertical direction, one short side portion of the substrate portion 1 is also directed in the vertical direction. Moreover, since the first hook-shaped part 10 is addressed to the upper surface of the arm metal 102, it is directed in the horizontal direction.

  Accordingly, the substrate portion 1 of this support is twisted at the intermediate portion, directed in the vertical direction at one short side portion, and oriented in the horizontal direction at the other short side portion on the bowl-shaped portion side. ing. Furthermore, since the tension insulator 140 is disposed lower than the upper surface of the arm metal 102 so as to face the side surface of the arm metal 102, the support is bent at the center and formed into a square shape when viewed from the front. .

  The first hook-like portion 10 is continuous with the other short side portion of the substrate portion 1 and has a narrower width than the base end portion and protrudes toward the pin insulator 110 (hereinafter referred to as “first pin”). A stick portion) 12, a hook portion 13 (hereinafter referred to as a “first hook portion”) 13 in which the distal end side of the first stick portion 12 is folded back to the substrate portion 1 side, and the first portion. And an opening (hereinafter referred to as “first opening”) 14 provided between the latching portion 13 and the substrate portion 1. Further, the first stick portion 12 has a stop portion 15 (hereinafter referred to as “first stop portion”) protruding from the outer surface at the side edge opposite to the first opening portion 14. .

  And this support is made to pivotally support the hook-like part 20 on the outer surface of the other short side part of the substrate part 1 so as to be swingable. The second bowl-shaped portion 20 includes a base portion 21 that is pivotally supported on the substrate portion 1 by pins or the like, a second stick portion 22 protruding from the base portion 21, and a distal end side of the second stick portion 22. A second hooking portion 23 folded back to the base 21 side and a second opening 24 provided between the second hooking portion 23 and the base 21 are provided. Further, the second stick portion 22 has a second stop portion 25 protruding from the inner surface at the side edge opposite to the second opening 24.

  However, the first hook-shaped portion 10 and the second hook-shaped portion 20 are such that the base portion 21 of the second hook-shaped portion 20 is a substrate so that the first opening portion 14 and the second opening portion 24 face each other. The other short side part of the part 1 is pivotally supported. Therefore, the second hooking portion 23 of the second hook-shaped portion 20 is the first hooking portion 23 in the state where the second hook-shaped portion 20 is turned and overlaps the first hook-shaped portion 10. The first hooking portion 13 of the first hook-shaped portion 10 is hooked to the second hooking portion 25.

  The support tool of the first embodiment is configured as described above, and a method for fixing the support tool to the brace 102 will now be described with reference to FIGS.

  Before fixing the support tool to the arm metal 102, as shown in FIG. 2, a pin insulator 110 is fixed to the arm metal 102, and only one pair of general support tools 130 and 130 are attached to the pin insulator 110. It is supported. The pair of general support tools 130 and 130 are provided between a tension insulator 140 connected to a retention clamp 120 (see FIG. 11) holding the overhead electric wire 100 and a pin insulator 110 fixed to the arm metal 102. It is laid over. Further, the overhead electric wire 100 is erected from one side (left side in the drawing) to the pin insulator 110, and the tip (right side in the drawing) is not erected and is disconnected.

  In order to further extend the overhead electric wire 100 from the tip, the support is attached to the brace 102. Therefore, as shown in FIG. 3, the nut 115 is loosened and the pin insulator 110 is slightly raised by the thickness of the present support tool, and the existing support tool 130 that is addressed to the upper surface of the flange 113 and the arm metal 102 is provided. A space is provided between the two. The nut 115 is not removed from the bolt part 114 of the shaft part 112, and the pin insulator 110 is raised by the amount of being loosened and moving downward.

  And this support tool is brought close to the pin insulator 110 vicinity. In the initial stage of the support, the second hook-shaped portion 20 is separated from the first hook-shaped portion 10 and the first opening 14 and the second opening 24 are opened. .

  Next, as shown in FIG. 4, the first opening portion 14 and the second opening portion 24 of the present support tool are placed so that the shaft portion 112 is sandwiched between the flange portion 113 and the upper surface of the arm metal 102. Move the support.

  Next, as shown in FIG. 5, the second hook-shaped portion 20 is turned to be overlapped with the first hook-shaped portion 10. When the second hooking portion 23 of the second hook-shaped portion 20 hits the first hooking portion 15 and the first hooking portion 13 hits the second hooking portion 25, The second bowl 20 does not turn too much. Therefore, the shaft portion 112 of the pin lever 110 is accurately sandwiched between the first stick portion 12 and the second stick portion 22.

  When the support is pulled away from the arm metal 102 (right side in the drawing), the first hook 13 and the second hook 23 sandwich the shaft 112 of the pin lever 110. . Subsequently, the pin insulator 110 that has been raised is lowered so that the flange 113 is placed on the second flange 20 of the support. At this time, the nut 115 that is still attached to the shaft portion 112 of the pin lever 110 is positioned below the existing support member 130 that is addressed to the lower surface of the arm metal 102, and the nut 115 is disposed between the support member and the nut 115. Are spaced apart.

  Next, as shown in FIG. 6A, another support tool 30 is superimposed on the existing support tool 130 on the lower surface of the arm metal 102. As shown in FIG. 6 (b), the support 30 is formed by twisting and bending a rectangular plate-shaped member 31 at the center, and one end thereof is fitted into the cut portion of the tension insulator 140. The other end is overlapped with the existing support 130 on the lower surface of the arm metal 102. Therefore, this support tool 30 is provided with a connection hole 31a that communicates with the communication hole of the tension insulator 140 at one end and an engagement hole 32 that engages with the shaft 112 of the pin insulator 110 at the other end. It is said that.

  The engaging hole 32 is provided with a reduced diameter portion 32a having an inner diameter that is the same as or slightly larger than the outer diameter of the shaft portion 112 of the pin insulator 110 on the tip edge side, and an enlarged diameter portion 32b having an inner diameter larger than the nut 115 on the center portion side. The shape is different. Therefore, this support tool 30 contracts the shaft portion 112 of the pin lever 110 by pulling the diameter-expanded portion 32b of the engagement hole 32 in a direction away from the arm metal 102 (rightward in the drawing). It can be located in the diameter part 32a.

  Then, by tightening the nut 115, the present support tool, the new support tool 30, and the existing support tools 130 and 130 are fixed to the arm metal 102.

  Then, when one end of the present support tool and the new support tool 30 are fitted into the groove portion of the tension insulator 140 and the cotter pin is inserted into the communication hole and the connection hole, the mounting operation of the support tool is completed. . After that, a new overhead wire 100 is fixed to the retaining clamp 120 attached to the tension insulator 140, and the end of this overhead wire 100 and the tip of the already installed overhead wire 100 are connected. Is finished.

  Even if a force is applied to the support tool from the newly installed overhead electric wire 100 to expand the first latching portion 13 and the second latching portion 23, The first latching portion 13 and the second latching portion 25 are latched by the second latching portion 25 and the second latching portion 23 is latched by the first latching portion 15. The latch part 23 continues to latch the shaft part 112 of the pin insulator 110 without expanding.

  In addition, this invention can be variously changed without being limited to the said embodiment. For example, as shown in FIG. 7, the present support tool is one in which the substrate portion 1 is only twisted at the center portion and is not bent in a hem shape, or the substrate portion 1 is twisted at the center portion as shown in FIG. 8. In addition, a flat plate that is neither bent nor bent can be implemented.

In addition, as shown in FIG. 9, the support tool of the first reference example is configured such that the second hook-shaped portion 20 is inclined toward the first stick portion 12 side like a carabiner and opens the opening. The single opening / closing lever 26 may be pivotally supported on the substrate unit 1.

Further, as shown in FIG. 10, the present support tool of the second reference example may be provided with no opening / closing part and the opening part 14 may be left open. However, the support tool of FIG. 10 must be such that the strength of the base plate portion 1 is less likely to be deformed than that provided with the second hook-like portion 20, and therefore the base plate portion 1 and the lock portion 10 are made thicker. It is necessary to use a material with high rigidity.

Further, although not shown, the substrate portion 1 is also viewed from the front in the support of the first reference example provided with the open / close lever 26 such as a carabiner and the support of the second reference example not provided with the open / close lever 26. It may be twisted without being bent in a letter shape, or may be a flat plate that is neither twisted nor bent.

  Further, the substrate unit 1 and the bowl-shaped unit may be integrated separately. That is, the first screw-shaped portion 10 may be integrated by forming a male screw portion at the base end portion, forming a female screw portion on the substrate portion 1, and screwing both screws together.

  Furthermore, the main object of this support tool is to be able to be fixed to the pin insulator 110 attached to the arm metal 102 later, but in addition, for example, parts can be replaced by rust or the like. You may use it when you have to.

DESCRIPTION OF SYMBOLS 1 ...... Board | substrate part 10 ... 1st hook-shaped part 12 ... 1st stick part 13 ... 1st latching part 14 ... 1st opening part 15 ... 1st stopper part 20 ...... Second hook-shaped part 21 ...... Base part 22 ...... Second stick part 23 ...... Second hooking part 24 ...... Second opening part 25 ...... Second stopper part 26 ...... Opening and closing lever

Claims (3)

A support for a wire erection member that is spanned between a shaft portion of a pin insulator inserted into a communicating hole of a bracelet and a tension insulator connected to a retention clamp that holds an aerial wire,
A rectangular substrate portion on the tension insulator side and a first flange portion on the pin insulator side are integrally provided, and the first flange portion is continuous with the short side portion of the substrate portion, and a first stick portion protruding pin insulators side a narrower width than the base plate portion, a first hook portion for the distal end side of the first stick part folded on the substrate side, the first A first opening provided between the latch portion and the substrate portion ,
A second hook-like part pivotally supported by the substrate part is provided, and the second hook-like part includes a base part pivotally supported by the board part and a second part protruding from the base part. A second latching portion in which the tip end side of the second stick portion is folded back to the base side, and a second opening provided between the second latching portion and the base portion The second hook portion is spaced apart from the first hook portion so that the first opening portion and the second opening portion are opposed to each other. A state in which the first opening is opened and a state in which the second hooking portion overlaps the tip end side of the first stick portion and the second stick portion closes the first opening portion. Swinging to open and close the first opening,
On the side surface of the first stick portion and the side surface of the second stick portion, the second hook portion and the first hook portion are closed with the second hook-shaped portion closing the first opening portion. A support for a wire laying member, wherein a stop for stopping the hook is provided . The substrate unit, the orientation of the short sides in the vertical direction of the one end side, as the short side of the other end horizontally oriented, as claimed in claim 1, characterized in that it is twisted in the central portion Support for wire erection member. The said board | substrate part is bent in the center part, The support tool for electric wire construction members of Claim 2 characterized by the above-mentioned.

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