JP2008072853A - Arm metal reinforcing method and plate implement for arm metal reinforcement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily reinforce an arm metal with sufficient work efficiency and without power interruption. <P>SOLUTION: A plate implement 111 is made abut on a side opposite to a side on which the arm metal 102 abuts in a telegraph pole 101 in a state where a head of a sewing bolt 103 projected from the telegraph pole 101 is avoided by an aperture 111d. A plate implement 115 is made abut on a side opposite to a side on which the telegraph pole 101 abuts in the metal arm 102 in a state where a screw part 103a of the sewing bolt 103 projected from the arm metal 102 is avoided by an aperture 115b. Line members 112 are hung on right and left ends of the arm metal 102. Ring parts at both ends of the line members 112 are restrained by hooks arranged on the other ends of bolt members 113. Nuts 114 are screwed to screw parts of the bolt members 113 in a state where they are made to pass through bolt insertion holes drilled in the extension parts 111b of the plate implement 111. The right and left ends of the arm plate 102 are pulled to a telegraph pole 101-side by the line members 112 with sufficient balance, and the arm plate 102 is pressed to the telegraph pole 101. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a bracelet reinforcement method for bracing a brace that is fixed to a utility pole using a sewing bolt and a brace for reinforcing a bracelet.

  FIG. 11 shows the configuration of the distribution column portion of the low voltage distribution. A brace 202 is attached to the utility pole 201 using a so-called sewing bolt 203. In this case, a nut 204 is screwed into the threaded portion 203a in a state where the threaded portion 203a of the sewing bolt 203 is penetrated by the utility pole 201 and the arm metal 202.

  A low pressure retaining insulator 205 is fixed to the arm metal 202, and a low voltage distribution line W is supported on the low pressure retaining insulator 205. The illustrated example shows a single-phase three-wire distribution line. Note that a cap 206 for protecting the utility pole is attached to the top of the utility pole 201.

  FIG. 12 shows a view of the distribution pole portion shown in FIG. 11 as viewed from above. However, the distribution line W is not shown, and the utility pole 201 is shown in a cut state. In addition, although not shown in FIG. 11, actually, a washer 207 is interposed between the arm metal 202 and the nut 204 as shown in FIG. 12. The same applies to the same kind of figures shown below.

  In such a distribution pole portion, as described above through the distribution line W, such as when the distribution line W is beaten by strong winds such as a typhoon, or a tree collapsed by such wind is caught on the distribution line W. In addition, an inhomogeneous force is applied to the arm metal 202 fixed to the utility pole 201. In this case, for example, as shown in FIG. 13, the sewing bolt 203 may be bent, and in the worst case, the sewing bolt 203 breaks due to metal fatigue, and the arm metal 202 falls off the utility pole 201. There is also.

  Therefore, conventionally, in order to prevent the arm bracket 202 from falling off from the utility pole 201, for example, when the sewing bolt 203 is bent, the fixing method of the arm bracket 202 at that portion may be replaced with a band method. Has been done.

  14 and 15 show a state in which the arm metal 202 is fixed by a band method. 14 and 15, the same reference numerals are given to the portions corresponding to those in FIGS. 11 and 12, and the description thereof is omitted as appropriate. In this case, the brace 202 is fixed to the utility pole 201 by using the band-shaped metal fitting 211, the pair of bolts 212, and the pair of nuts 213. The abutting bracket 211 is connected to a contact portion 211a that is in contact with the power pole 211 in a state of being wound by a predetermined angular range in the circumferential direction of the power pole 201, and is connected to both ends in the circumferential direction of the contact portion 211a. It has a pair of extension part 211b by which the bolt insertion hole (not shown) for letting it pass is drilled.

In this case, the metal fitting 211 is disposed so that the contact portion 211a contacts the side opposite to the side where the arm metal 202 of the power pole 201 is contacted, and the pair of bolts 212 are respectively connected to the metal plate 211. By sequentially passing through the bolt insertion holes 202a of the pair of extension portions 211b and the bolt insertion holes 202a of the arm metal 202, a pair of nuts 213 are respectively screwed into the screw portions 212a protruding from the arm metal 202 of the pair of bolts 212. The arm bracket 202 is fixed to the utility pole 201. A washer 214 is interposed between the arm metal 202 and the nut 213. Patent Document 1 discloses a bracelet fixing method using a band method as described above.
JP-A-9-84243

  When the fixing method of the arm metal 202 is changed from the method using the sewing bolt 203 to the band method as described above, it is necessary to remove the sewing bolt 203 and to perform a work after a power failure. There are problems such as inefficiency and power failure. In addition, this band method cannot be used when the bolt insertion hole 202a is not provided in the arm metal 202, corresponding to the bolt insertion hole provided in the pair of extension portions 211b of the metal fitting 211. is there.

  An object of the present invention is to provide a bracelet reinforcing method that can easily reinforce a bracelet and a reinforcing metal fitting used for the same.

The concept of this invention is
A bracelet reinforcing method for reinforcing a brace fixed to a utility pole using a sewing bolt,
There is a contact avoiding portion for avoiding the contact of the end of the sewing bolt attached to the power pole, and the contact is made to contact the power pole in a state where it is wound by a predetermined angular range in the circumferential direction of the power pole. A first metal fitting having a contact portion and a pair of extension portions respectively connected to both ends in the circumferential direction of the corresponding contact portion and each having a bolt insertion hole for passing a bolt;
A pair of linear members each having a first hook at each end;
A pair of bolt members each having a threaded portion that is threaded at one end and a second latching portion that is latched to the first latching portion of the linear member at the other end;
Using a pair of nuts that are screwed into the threaded portions of the bolt members,
The above-mentioned contact part is in contact with the side opposite to the side where the arm of the power pole is in contact, with one end of the sewing bolt protruding from the power pole aligned with the contact avoiding part. Place the first brace,
A second holding portion having a first hooking portion at each end of the pair of linear members at the other end of the pair of bolt members in a state where the pair of linear members are respectively hung on the left and right ends of the arm metal. Hang at the latching part of
The pair of nuts are screwed together in a state where the bolt insertion holes formed in the pair of extension portions of the first batting bracket are passed through the bolt portions at one end of the pair of bolt members. There is a method for reinforcing a bracelet, characterized by reinforcing the wire.

  In the present invention, a metal fitting that has a contact avoidance portion that avoids contact between the ends of the sewing bolts attached to the power pole and that contacts the power pole, and a pair of wires that are hung on the left and right ends of the armrest The brace is reinforced by using the shaped member, and the reinforcement can be easily performed. That is, since the contact fitting has a contact avoidance portion that avoids contact of the bolt end portion, it is possible to perform the reinforcing work without removing the sewing bolt from the utility pole and without any power failure. Further, the arm metal is reinforced by using a pair of linear members hung on the left and right ends of the arm metal, and the arm metal can be reinforced even when the arm metal has no bolt insertion hole. .

  For example, a second abutting member having a contact avoiding portion for avoiding abutting of an end of the sewing bolt protruding from the arm metal and further contacting the arm metal is used. With the other end of the sewing bolt protruding from the arm metal in contact with the contact avoiding portion on the side opposite to the side where the power pole of the arm metal is in contact with the pair of wires. The shaped member may be hung on the left and right ends of the brace. In this case, it is possible to prevent the linear member from being bent at right angles by the second metal fitting, and it is possible to reduce the strength required for the linear member. Further, in this case, for example, even when a thin wire material such as a wire is used as the linear member, a large force is not applied to the narrow range of the arm metal by the thin wire material, and deformation of the arm metal can be prevented. .

  For example, at the left and right ends of the second metal fitting, a detachment prevention portion is formed to prevent the linear members from coming off to the left and right in a state where a pair of linear members are hung on the left and right ends of the brace. Also good. In this case, even if the position of the second metal fitting is shifted over time, the pair of linear members does not come off the left and right from the second metal fitting, and the position on the second metal fitting is stabilized. Can be maintained.

  For example, the contact avoidance portion of the first batting bracket and the contact avoidance portion of the second batting bracket may be bag-shaped recesses into which the end portions of the sewing bolts can be inserted. The contact avoiding portion can be an opening. In that case, when the sewing bolt breaks due to metal fatigue, the sewing bolt may fall from the utility pole. By making this contact avoidance portion a bag-shaped recess, even if the sewing bolt is broken due to metal fatigue, the sewing bolt is held in the recess, so it does not fall from the utility pole, and safety is improved. improves.

  According to the present invention, it is possible to easily reinforce the brace with good work efficiency and without a power failure.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1-4 has shown the structure of the distribution pole part of a low voltage | pressure distribution. FIG. 1 shows a perspective view of a distribution pole portion. FIG. 2 shows a view of the fixed portion of the arm bracket 102 as viewed from above. However, the distribution line W is not shown, and the utility pole 101 is shown in a cut state. FIG. 3 shows a view of the fixed portion of the arm metal 102 as viewed from the side. However, illustration of the distribution line W is omitted. FIG. 4 is a cross-sectional view taken along the line AA in FIG.

  A brace 102 is attached to the utility pole 101 using a so-called sewing bolt 103. In this case, a nut 104 is screwed into the threaded portion 103a in a state where the threaded portion 103a of the sewing bolt 103 is passed through the utility pole 201 and the arm metal 202. In this case, as shown in FIG. 2, a washer 107 is interposed between the arm metal 102 and the nut 104.

  In the distribution pole portion shown in FIGS. 1 to 4, the brace 102 is reinforced. Here, reinforcement is performed using a metal fitting 111, a pair of linear members 112, a pair of bolt members 113, a pair of nuts 114, and a metal fitting 115. The metal fitting 111 constitutes a first metal fitting, and the metal fitting 115 constitutes a second metal fitting.

  The batten 111 is in contact with the electric pole 101 in a state where it is wound around the electric pole 101 in the circumferential direction by a predetermined angular range, and is connected to both ends of the abutting portion 111a in the circumferential direction. It has a pair of extension parts 111b in which bolt insertion holes 111c for passing are formed.

  In addition, a quadrangular opening 111d is formed in the contact portion 111a of the metal fitting 111. The opening 111d is for avoiding contact of the end of the sewing bolt 103 attached to the utility pole 101, and constitutes a contact avoiding portion. Note that the shape of the opening 111d is not limited to a quadrangular shape, and may be other shapes such as a circle as long as the end of the sewing bolt 103 can be avoided. .

  As for the linear member 112, the whole is comprised with the wire and the ring part 112a is formed in the both ends. The ring portion 112a is for hooking a hook portion provided at the other end of a bolt member 113 described later, and constitutes a first hook portion.

  The bolt member 113 has a threaded portion 113a threaded at one end, and a hooked portion 113b at the other end. Here, the hook portion 113b is for hooking on the ring portion 112a of the linear member 112 as described above, and constitutes a second hooking portion. In addition, this hook part 113b is provided with the opening-and-closing piece 113c, and the ring part 112a hooked on one end does not come off easily.

  As shown in FIG. 4, the surface of the abutting bracket 115 that is in contact with the arm metal 102 is a flat surface, but the surface opposite to the surface is an arc. In addition, projecting ridges 115a are formed on the left and right ends of the surface opposite to the surface that contacts the arm metal 102 of the metal fitting 115. The protruding portion 115a prevents the linear member 112 from coming off to the left and right in a state where the linear member 112 is hung on the left and right ends of the arm metal 102, and constitutes a detachment preventing portion. .

  In addition, a square-shaped opening 115b is formed in the metal fitting 115, similarly to the opening 111d formed in the contact portion 111a of the metal fitting 111 described above. The opening 115b is for avoiding contact of the end of the sewing bolt 103 protruding from the arm metal 102, and constitutes a contact avoiding portion. The shape of the opening 111b is not limited to a square shape, and may be other shapes such as a circle.

  1 to 4 show a state after the brace 102 is reinforced using the above-described reinforcing members (the metal fitting 111, the linear member 112, the bolt member 113, the nut 114, and the metal fitting 115). Here, the procedure of the reinforcement work will be described. FIG. 5 shows each reinforcing member in an exploded manner.

  First, on one side of the utility pole 101 opposite to the side on which the arm metal 102 is in contact, one end of the sewing bolt 103 protruding from the utility pole 101, in this embodiment, the head is aligned with the opening 111d. The batting bracket 111 is arranged so that the abutting portion 111a abuts. By aligning the opening 111d with one end of the sewing bolt 103 protruding from the utility pole 101 in this way, one end of the sewing bolt 103 is not brought into contact with the contact portion 111a. 101 is in close contact.

  Next, an opening 115 is formed in the other end of the sewing bolt 103 protruding from the arm metal 102 on the side opposite to the side on which the power pole 101 is in contact with the arm metal 102, in this embodiment, the screw portion 103a. The fitting 115 is abutted so as to fit. In this state, the pair of linear members 112 are hung on the left and right ends of the arm metal 102.

  Next, as described above, the ring portions 112 a at both ends of the pair of linear members 112 hung on the left and right ends of the arm metal 102 are hooked by the hook portions 113 b having the other ends of the pair of bolt members 113. In this case, the hook portion 113b of each bolt member 113 is in a state of hooking together the two ring portions 112a that the corresponding one linear member 112 has at both ends.

  Next, a pair of nuts 114 is screwed into a threaded portion 113a provided at one end of the pair of bolt members 113 in a state where the bolt insertion holes 111d provided in the pair of extension portions 111b of the fitting 111 are passed through.

  In this case, since the left and right ends of the arm metal 102 are pulled to the power pole 101 side with a good balance by the tightening by the pair of nuts 114, the arm metal 102 is pressed against the power pole 101. Thus, the arm metal 102 is reinforced. A washer 116 is interposed between the arm metal 102 and the nut 114 to prevent the nut 114 from loosening.

  1 to 4, the brace metal reinforcing method shown in FIGS. 1 to 4 has an opening 111d that avoids contact between the ends of the sewing bolt 103, and the left and right sides of the arm metal 102. The arm metal 102 is reinforced by using a pair of linear members 112 hung on the ends, and the reinforcement can be easily performed.

  That is, since the brace 111 has the opening 111d that avoids contact of the sewing bolt 103, the reinforcing work can be performed without removing the sewing bolt 103 from the utility pole 101 and without a power failure. Also, the arm metal 102 is reinforced by using a pair of linear members 112 that are hung on the left and right ends of the arm metal 102. Unlike the conventional band system (see FIGS. 14 and 15), the arm metal 102 is used. Even if there is no bolt insertion hole in the case, or even if there is no bolt insertion hole at an appropriate position, the arm metal 102 can be easily reinforced.

  In addition, in the brace reinforcement method shown in FIGS. 1 to 4, the brace metal 102 having an opening 115 b for avoiding the end of the sewing bolt 103 protruding from the brace 102 from coming into contact with the brace 102 is used. With the other end of the sewing bolt 103 protruding from the arm metal 102 in contact with the opening 115b on the side opposite to the side on which the power pole 101 is in contact, the pair of linear members 112 are The arm bracket 102 is hung on the left and right ends.

  Therefore, since the linear member 112 is not bent at a right angle at the arm metal 102 by the metal fitting 115 and is gently bent, the strength required for the linear member 112 can be suppressed to a low level. The thickness of the wire constituting the member 112 can be reduced. Further, due to the presence of the metal fitting 115, for example, even when the linear member 112 uses a thin wire material such as a wire, a large force is not applied to the narrow range of the arm metal 102 by the thin wire material. Deformation of the arm metal 102 can be prevented.

  The linear member 112 is not a thin wire material such as a wire but a wide belt-like wire material, which does not give a large force to the narrow area of the arm metal 102, and is sufficient to cause no problem even if it is bent at a right angle. In the case where the strength is high, the fitting 115 is not always necessary, and can be omitted.

  Moreover, in the brace reinforcement method shown in FIGS. 1 to 4, protrusions 115 a are formed at the left and right ends of the metal fitting 115. Therefore, even if the position of the abutting metal 115 is shifted from side to side over time, the linear member 112 does not come off the left and right from the abutting metal 115, and the linear member 112 stabilizes the position on the abutting metal 115. Can be maintained.

  In addition, in the brace reinforcement method shown in FIGS. 1 to 4, the metal fittings 111 and 115 each have the openings 111 d and 115 b as the contact avoidance portions, but instead of the openings 111 d and 115 d, As shown in FIGS. 6-8, it is good also as bag-shaped recessed part 111e, 115c. In these FIGS. 6-8, the same code | symbol is attached | subjected and shown to the part corresponding to FIGS. 1-4.

  In this case, since the bag-shaped recesses 111e and 115c can avoid the end of the sewing bolt 103 attached to the utility pole 101 from coming into contact with the metal fittings 111 and 115, the arm shown in FIGS. Similar to the gold reinforcement method, the reinforcement work can be performed without removing the sewing bolt 103 from the utility pole 101 and without a power failure.

  Moreover, even if the sewing bolt 103 is broken due to metal fatigue, the sewing bolt 103 is held by the recesses 111e and 115c so that the contact avoiding portion is made of the bag-shaped recesses 111e and 115c. Safety can be improved.

  6-8, although the bottom part of the bag-shaped recessed parts 111e and 115c showed the flat thing, you may form in a gentle mountain shape.

  In addition, in the brace reinforcement method shown in FIGS. 1 to 4, a brace 115 having protrusions 115 a formed at the left and right ends is used. Instead, as shown in FIG. You may use the metal fitting 115A in which the passage part 115d for letting a linear member pass was formed. The linear member 112A in the reinforcing method shown in FIG. 9 is wider than the linear member 112 in the reinforcing direction shown in FIGS. 1 to 4 formed of a thin wire material such as a wire. It is formed of a belt-shaped wire.

  In the case of using the brace 115A, when the brace 115A is brought into contact with the arm metal 102 and the pair of linear members 112A are hung on the left and right ends of the arm metal 102, the linear member 112A serves as a through portion of the batten 115A. 115d. About others, it is the same as that of the case where the metal fitting 115 is used as shown in FIGS.

  Even when using the metal fitting 115A in this way, as in the case of using the metal fitting 115 as shown in FIGS. 1 to 4, even if the position of the metal fitting 115A is shifted to the left and right over time, The linear member 112A does not come off the left and right from the fitting 115A, and the linear member 112A can stably maintain the position on the fitting 115A.

  Here, although not shown in the drawing, at least the portion of the through-hole 115d of the metal fitting 115A has an arcuate surface opposite to the surface abutting on the arm metal 102, similarly to the metal fitting 115 described above. (Refer to FIG. 4), the linear member 112A does not bend at a right angle at the arm metal 102, and is gently bent, so that the strength required for the linear member 112A is kept low. be able to.

  In addition, in the reinforcing method shown in FIGS. 1 to 4, a bolt member 113 having a threaded portion 113a threaded at one end and a hook portion 113b at the other end is used. In place of the bolt member 113, as shown in FIG. 10, a bolt member having a threaded portion 113a threaded at one end and a hooking portion 113c having two J-shaped hooking pieces at the other end. 113A may be used. The two hook pieces of the hook portion 113c of the bolt member 113A are hooked on the two ring portions 112a at both ends of the linear member 112, respectively.

  In addition, the latching part provided in a bolt member and the latching part provided in a linear member are not limited to the example mentioned above, Other structures may be sufficient, In short, the both ends of a linear member The screw member of the bolt member may have a structure that can be hooked on the opposite side.

  Further, in the above-described arm metal reinforcement method, the linear members 112 and 112A and the metal fittings 115 and 115A are used independently, but these linear members and the metal fittings are integrally formed, although not shown. You may make it use what was comprised.

  The present invention can easily reinforce the arm metal without removing the sewing bolt, and can be applied to reinforce the arm metal fixed to the utility pole using the sewing bolt.

It is a perspective view which shows the structure of the distribution pole part of the low voltage | pressure distribution which performed the brace reinforcement by this invention. It is the figure which looked at the fixed part of a brace from the upper part. It is the figure which looked at the fixed part of a brace from the side. It is sectional drawing which cut | disconnected the principal part of the bracelet. It is the perspective view which exploded and showed the reinforcing member. It is a perspective view which shows the structure of the distribution pole part of the low voltage | pressure distribution which performed the brace reinforcement by this invention. It is the figure which looked at the fixed part of a brace from the upper part. It is the figure which looked at the fixed part of a brace from the side. It is a figure for demonstrating the other example of a metal fitting and a linear member. It is a figure for demonstrating the other example of a bolt member. It is a perspective view which shows the structure of the distribution pole part of the low voltage | pressure distribution which has not performed armrest reinforcement. It is the figure which looked at the fixed part of the arm metal with a sewing bolt from the upper part. It is a figure which shows the state in which the sewing volt | bolt bent by the strong wind. It is a figure for demonstrating fixation of the arm bracket by a band system. It is a figure for demonstrating fixation of the arm bracket by a band system.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 101 ... Electric pole, 102 ... Arm metal, 103 ... Sewing bolt, 103a ... Screw part, 104 ... Nut, 105 ... Low pressure retention insulator, W ... Low voltage distribution line 111 ································································································································································· 111 · Linear member, 112a ··· Ring portion, 113, 113A · · · Bolt member, 113a · · · Screw portion, 113b · · · Hook portion, 113c · · · Hook portion, 114 · · · Nut, 115 · ..Batch metal fittings 115, 115A ... Batch metal fittings, 115a ... ridges, 115b ... openings, 115c ... bag-like recesses, 115d ... through parts

Claims (5)

A bracelet reinforcing method for reinforcing a brace fixed to a utility pole using a sewing bolt,
There is a contact avoiding portion for avoiding the contact of the end of the sewing bolt attached to the power pole, and the contact is made to contact the power pole in a state where it is wound by a predetermined angular range in the circumferential direction of the power pole. A first metal fitting having a contact portion and a pair of extension portions respectively connected to both ends in the circumferential direction of the corresponding contact portion and each having a bolt insertion hole for passing a bolt;
A pair of linear members each having a first hook at each end;
A pair of bolt members each having a threaded portion that is threaded at one end and a second latching portion that is latched to the first latching portion of the linear member at the other end;
Using a pair of nuts that are screwed into the threaded portions of the bolt members,
The above-mentioned contact part is in contact with the side opposite to the side where the arm of the power pole is in contact, with one end of the sewing bolt protruding from the power pole aligned with the contact avoiding part. Place the first brace,
A second holding portion having a first hooking portion at each end of the pair of linear members at the other end of the pair of bolt members in a state where the pair of linear members are respectively hung on the left and right ends of the arm metal. Hang at the latching part of
The pair of nuts are screwed together in a state where the bolt insertion holes formed in the pair of extension portions of the first batting bracket are passed through the screw portions provided at one ends of the pair of bolt members. A method of reinforcing a bracelet, comprising: reinforcing the arm. A contact avoiding portion for avoiding contact of the end of the sewing bolt protruding from the arm metal, and further using a second metal fitting that contacts the arm metal,
The second metal fitting is brought into contact with the side opposite to the side on which the power pole of the arm metal is in contact, with the other end of the sewing bolt protruding from the arm metal aligned with the contact avoiding portion. 2. The armrest reinforcing method according to claim 1, wherein the pair of linear members are hung on the left and right ends of the armrest in a state of being performed. 3. The contact avoidance portion of the first metal fitting and the contact avoidance portion of the second metal fitting are respectively bag-shaped recesses into which the end portions of the sewing bolts can be inserted. The bracelet reinforcement method as described in 2. At the left and right ends of the second metal fitting, a detachment prevention portion is formed to prevent the linear members from coming off to the left and right when the pair of linear members are hung on the left and right ends of the arm metal. The bracelet reinforcing method according to claim 2. A brace used to reinforce a brace that is fixed to a utility pole using sewing bolts,
There is a contact avoiding portion for avoiding the contact of the end of the sewing bolt attached to the power pole, and the contact is made to contact the power pole in a state of being wound around the power pole in a predetermined angular range. The tangent,
A brace for reinforcing an armature, comprising: a pair of extension portions connected to both ends of the contact portion in the circumferential direction, each having a bolt insertion hole for allowing a bolt to pass therethrough.

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