JP2010268653A - Metal fitting for reinforcing arm supporting part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcing metal fitting for an arm supporting part by which a pressing force to an electric pole is enhanced. <P>SOLUTION: A reinforcing metal fitting body 1 has trapezoidal notches on outer edges of central parts of facing upper and lower pieces of the metal fitting of a channel type and of a fixed length. Through-holes are provided at both ends of a rear piece of the reinforcing metal fitting body 1 in the longitudinal direction, respectively. On the other end of the electric pole A, a U-bolt C and an end of a core bolt 9 are put in a channel groove to fit the upper and lower notches of the horizontal reinforcing metal fitting body 1 to a spot where the U-bolt C is laid substantially horizontally, long bolts 3 are inserted into the through-holes provided on both ends of the rear piece of the reinforcing metal fitting body 1, respectively, and the ends of the long bolts 3 are inserted through the through-holes 21 provided on both ends of an arm B and protruded at th outside of both ends of the U-bolt C, then screwed with nuts 24, thereby fixing the reinforcing metal fitting body 1. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention mainly relates to a brace support reinforcement metal fitting that suppresses the amount of displacement of an arm metal against a rotational force applied to an existing arm metal attached to a utility pole in a strong wind in a pulling-in column. It is.

  A myriad of power poles have been built for power distribution and communication regardless of whether in Japan, in the city, or in the suburbs. Among such utility poles, as shown in FIG. 22, there are those in which a brace F is extended from one side of the utility pole A in the horizontal direction for suspension of electric wires. The arm metal F is inserted from the other side of the arm metal F by fitting both end portions of the U bolt C around the power pole A into the respective through holes provided in advance in the arm metal F at locations where it contacts the power pole A. Nuts are screwed at both ends of the protruding U bolt C to be fixed to the utility pole A. An arm tie D is provided from the utility pole A to the arm metal F to support the arm metal F.

When a strong wind blows on such an electric wire or arm metal F, a complicated load acts on the arm metal F, and as one of the loads, a load P is applied to the arm metal F as shown in FIG. There is a possibility that the U-bolt C and the core bolt 9 may be broken by the generation of a rotational force M that attempts to rotate the arm metal F.
JP 2008-245432 A (see FIG. 11)

  It can be seen that the rotational force M is resisted by a pressing force (indicated by a black arrow in the cross-sectional view of the power pole in FIG. 23) that is generated by the force that the U bolt C clamps the power pole A. Is larger, the frictional force between the U-bolt that resists the rotational force M and the utility pole A becomes larger, the U-bolt does not rotate with respect to the utility pole A, and the displacement amount of the end of the armature F can be suppressed.

  The present invention has been made in view of these points, and provides an armrest support portion reinforcing metal fitting that enhances the pressing force against a utility pole to solve the above-described problems.

  According to the first aspect of the present invention, a base portion of a brace provided with a through hole at a corresponding position in a fixed arrangement on one side and the other side of a rectangular tube having a fixed length is opposed to one side of a utility pole. The both ends of a U-bolt that extends in the horizontal direction and hangs around the outer periphery of the utility pole are inserted from the through-hole on one side of the arm metal and protrude from the other-side through-hole, and the core bolt from the other side of the utility pole Is inserted into the utility pole, and the end portion is inserted into the through hole on one side of the arm metal and protrudes from the through hole on the other side, and the both end portions of the U bolt and the end portion of the core bolt are screwed with nuts, respectively. In addition, in the electric pole in which an arm tie is provided from the electric pole to the arm and the arm is fixed, a trapezoidal cut is formed on each outer edge of the center part of the upper and lower pieces facing each other of the channel type fixed length metal fitting. A reinforcing metal fitting body having a notch is provided, and through holes are provided at both longitudinal ends of the back piece of the reinforcing metal fitting body. Provided on the other side of the utility pole, the upper and lower cutouts of the reinforcing metal fitting body, which is horizontally placed by inserting the U bolt into the channel groove, are provided around the U bolt. Assigned to each, insert a long bolt into each through hole provided at both ends of the back piece of the reinforcing metal fitting body, and insert the end of the long bolt into each through hole provided on both sides of the arm metal, The arm bracket supporting portion reinforcing bracket for fixing the reinforcing bracket main body by projecting at the positions outside the both ends of the U-bolts and screwing the nuts respectively.

  According to the invention of claim 2, a base portion of a brace provided with a through hole at a corresponding position in a fixed arrangement on one side and the other side of a rectangular tube shape having a fixed length is opposed to one side of a utility pole. The both ends of a U-bolt that extends in the horizontal direction and hangs around the outer periphery of the utility pole are inserted from the through-hole on one side of the arm metal and protrude from the other-side through-hole, and the core bolt from the other side of the utility pole Is inserted into the utility pole, and the end portion is inserted into the through hole on one side of the arm metal and protrudes from the through hole on the other side, and the both end portions of the U bolt and the end portion of the core bolt are screwed with nuts, respectively. In addition, in the electric pole in which an arm tie is provided from the electric pole to the arm and the arm is fixed, a trapezoidal cut is formed on each outer edge of the center part of the upper and lower pieces facing each other of the channel type fixed length metal fitting. A reinforcing metal fitting body having a notch is provided, and through holes are provided at both longitudinal ends of the back piece of the reinforcing metal fitting body. A laterally long hole is provided on each side of the back piece sandwiched between oppositely facing upper and lower pieces of a channel type fixed length metal fitting, and a hole is provided between these elongated holes. Auxiliary metal fittings each having a through hole on both sides of a horizontally long elongated hole are provided, and the arrangement of the two through holes of the auxiliary metal fitting is the same position as the arrangement of the two through holes of the reinforcing metal fitting body. Leveling one end to the outside in the longitudinal direction from the base of the arm metal, each elongated hole of the auxiliary metal fitting at the other side of the arm metal and the both ends of the U bolt project, Further, the holes of the auxiliary metal fittings are fitted and covered on the end portions of the core bolts protruding from between both end portions of these U bolts.

  Further, on the other side of the utility pole, the upper and lower cutouts of the reinforcing metal fitting body, which are horizontally placed by placing the U bolt in the channel groove, are respectively provided at the places where the U bolt is hung substantially horizontally. After that, insert a long bolt into each through hole of the reinforcing metal fitting body, and insert the end of one long bolt into the through hole provided on both sides of the arm metal and protrude from the through hole on one side of the auxiliary metal fitting The end of the other long bolt is protruded through the through hole of the auxiliary metal fitting protruding outward from one end of the base of the arm bracket, and a nut is screwed to the end of each long bolt, and the reinforcing metal fitting body A brace support reinforcement metal fixture with a fixed auxiliary metal fixture was used.

  According to a third aspect of the present invention, there is provided a plurality of reinforcing washers by providing a through hole in the approximate center of the back piece sandwiched between the opposed upper and lower pieces of a channel type short metal fitting, and the reinforcement using the auxiliary metal fitting. At the time of mounting the metal fitting body, the position of the through hole of the reinforcing washer is adjusted to the position of each through hole of the reinforcing metal fitting body and the auxiliary metal fitting, and the reinforcing washer is covered, and the long bolt is inserted from above. Further, nuts are screwed onto the ends of the long bolts protruding from the through holes of the reinforcing washers, and the nuts at both ends of the U bolt protruding from the long holes of the auxiliary metal fittings are once removed. The arm washer support portion reinforcing metal fitting according to claim 2, wherein a reinforcing washer was placed on both ends of the armrest, and a nut was screwed onto the washer.

  The invention according to claim 4 is a metal plate having approximately the same width and length as the reinforcing metal fitting body, wherein a substantially central portion in the longitudinal direction is curved, and laterally elongated openings are provided to both sides of the curved portion. When the metal fittings made of thin metal having long holes are provided at both ends of the reinforcing metal fittings, and the reinforcing metal fitting main body is in contact with the power pole and attached, the through holes at both ends of the reinforcing metal fitting main body and the metal fittings of the two metal fittings are used. A long bolt is passed through each of the two long holes, and the abutting metal fitting is interposed between the reinforcing metal fitting body and the utility pole, and the abutting metal fittings are brought into contact with both side corners of the notches of the upper and lower pieces of the reinforcing metal fitting body. The armrest support part reinforcing metal fitting according to any one of claims 1, 2, and 3.

  According to the first, second, and third aspects of the invention, even when an existing armrest is attached to the utility pole, sufficient reinforcement of the attachment of the armrest can be easily performed, Can be suppressed. This is because, in addition to the pressing force to the power pole generated by tightening the U bolt, the pressing force to the power pole generated by tightening the long bolts at both ends of the reinforcing bracket main body also acts.

  In addition, according to the inventions of claims 2 and 3, the end of the base part of the arm metal does not sufficiently protrude outward from the utility pole, and even if the arm metal does not have a through hole corresponding to the reinforcing metal body, By using the reinforcing washer, sufficient and reliable reinforcement can be easily performed.

  According to the invention of claim 3, when attaching the reinforcing metal fitting body using the auxiliary metal fitting, the reinforcing metal fitting body and the auxiliary metal fitting are covered with the reinforcing washer, and the nut is screwed onto the reinforcing metal fitting main body. It can be fixed more strongly than when no washer is used.

  According to the invention of claim 4, when the reinforcing metal fitting body is attached to the electric pole in contact with the electric pole, the metal fitting is interposed between the both side corners of the cutout portions of the upper and lower pieces of the reinforcing metal fitting body and the electric pole. Because the both side corners of the cutouts of the upper and lower pieces of the reinforcing metal fittings are firmly pressed against the power pole, they do not directly hit the power pole, so it is difficult to damage the outer peripheral surface of the power pole and reinforce the brace with peace of mind. I can do it. In addition, when the abutment is interposed in this manner, the frictional force between the abutment and the utility pole acts in addition to the frictional force between the U-bolt and the utility pole, and the amount of displacement of the armrest tip can be further suppressed. . In addition, when this abutment is interposed between the reinforcing metal body and the utility pole, a gap is created between the utility pole and the abutment, but by tightening with a long bolt, the abutment metal is connected to the utility pole by the reinforcement metal body. The gap disappears and it fits into the utility pole and is firmly attached.

  In the present invention, a base of a brace provided with a through hole at a corresponding position in a fixed arrangement on one side and the other side of a rectangular tube having a fixed length is provided on one side of a utility pole in a horizontal direction. The both ends of the U-bolt extended to the outer periphery of the utility pole are inserted from the through hole on one side of the arm metal and protruded from the other through hole, and the core bolt is inserted into the utility pole from the other side of the utility pole. The end of the U-bolt is inserted into the through-hole on one side and protrudes from the other-side through-hole, and both ends of the U-bolt and the end of the core bolt are screwed with nuts, respectively. In the electric pole in which the arm tie is provided on the arm metal and the arm metal is fixed, a trapezoidal notch is formed on each outer edge of the center part of the upper and lower pieces facing each other of the channel type fixed length metal fitting. A reinforcing metal fitting body is provided, and through holes are provided at both ends in the longitudinal direction of the back piece of the reinforcing metal fitting body. The upper and lower cut-out portions of the reinforcing metal fitting body, which is placed on the other side of the utility pole and is horizontally placed by placing the U bolt in a channel groove, are respectively assigned to the portions where the U bolt is hung substantially horizontally. The long bolts are respectively inserted into the through holes provided at both ends of the back piece of the reinforcing metal fitting body, and the ends of the long bolts are inserted into the through holes provided on both sides of the arm metal, and the U bolt The reinforcing metal fitting main body is fixed by projecting at the positions outside the both end portions of the, and screwing the nuts respectively.

  Thereby, even if it is a case where the existing armrest is attached to the utility pole, sufficient reinforcement of the attachment of the armrest can be performed easily.

Embodiment 1 of the present invention will be described below with reference to the drawings.
FIG. 1 is an explanatory plan view of a state in which the armrest support portion reinforcing metal fitting according to the first embodiment of the present invention is attached to a utility pole to which an armrest is attached. FIG. 2 is a plan view of a reinforcing metal fitting body of the same armrest support portion reinforcing metal fitting. FIG. 3 is a front view of the reinforcing metal fitting body. FIG. 4 is a right side view of the same. FIG. 5 is a plan view of the brace of the armrest support portion reinforcing bracket according to the first embodiment of the present invention. FIG. 6 is a front view of the same. FIG. 7 is a right side view of the same. Moreover, FIG. 8 is a front view of the arm bracket to which the arm bracket support portion reinforcing metal fitting according to the first embodiment of the present invention is attached.

  The brace support supporting metal fitting according to the first embodiment of the present invention includes a reinforcing metal fitting body 1 and a contact fitting 2. As shown in FIGS. 2, 3 and 4, the reinforcing metal fitting body 1 has a notch 1a in which the outer edges of the center portions of the upper and lower pieces facing each other of a channel-type metal fitting having a fixed length are cut out in a trapezoidal shape. Through holes 1b are formed in both ends in the longitudinal direction of the back piece of the metal fitting. The positions of the through holes 1b of the reinforcing metal fitting body 1 correspond to the two through holes provided at the base of the arm metal B when the reinforcing metal fitting body 1 described later is attached to the utility pole A with the long bolt 3. It is a position to do.

  Further, as shown in FIGS. 5, 6, and 7, the abutment metal fitting 2 has a slightly wider width than the back piece of the reinforcing metal fitting body 1, and is a thin metal having a length slightly longer than the length of the reinforcing metal fitting body 1. A horizontally elongated rectangular opening 2a is provided at a substantially central portion in the longitudinal direction, and a curved portion 2b is formed by bending the substantially central portion of the opening 2a, and long holes 2c are formed at both ends in the longitudinal direction. Each is provided.

Next, a procedure for using the armrest support portion reinforcing metal fitting of the first embodiment will be described.
First, an existing arm metal B attached to a power pole A (concrete pillar) to which the arm metal support portion reinforcing metal fitting is attached will be described. As shown in FIG. 8, the arm metal B is a rectangular tube shape having a fixed length, and through holes are provided at corresponding positions in a fixed arrangement on the opposite side and the other side of the rectangular tube. Yes. The base portion of the arm metal B that is in contact with the utility pole is provided with two horizontally long through holes 21 with a gap therebetween, and through holes 22 between the through holes 21 and outside both ends.

  As shown in FIG. 1, such an arm metal B is stretched in the horizontal direction by contacting one side of the base of the arm metal B to one side of the power pole A, and a U-bolt hung around the outer periphery of the power pole A Both end portions 23 of C are inserted from the horizontally long through holes 21 on one side of the arm metal B, and protruded from the respective through holes 21 on the other side of the arm metal B, so that the both end portions 23 of these U bolts C are nuts. 24, and the core bolt 9 is passed through the utility pole A from the other side of the utility pole A, the end of the arm bracket B is protruded from the through hole 22, and a nut is screwed to the arm. Gold B is fixed to the utility pole A. Further, two arm ties D are provided from the utility pole A to the arm metal B, and the arm metal B is fixed.

  In this way, the brace support supporting metal fitting is attached to the utility pole A to which the brace B is attached. As shown in FIG. 1, on the other side of the utility pole A, the place where the U-bolt C is hung substantially horizontally and the protruding end of the core bolt 9 are horizontal. The fitting 2 is placed in the opening 2a and applied to the utility pole A, and the upper and lower cutout portions 1a of the horizontal reinforcing metal fitting body 1 are applied to each of them, and the cutout portions 1a face each other. The obtuse corner 1 a ′ is applied to the outer peripheral surface of the utility pole A through the fitting 2. Thereafter, the long bolts 3 are inserted into the through holes 1b provided at both ends of the back piece of the reinforcing metal fitting 1 and passed through the long holes 2c at both ends of the metal fitting 2, respectively. Are inserted into the respective through holes 22 provided on both sides of the arm metal B to project the nuts 4 on the other side of the arm metal B and outside the both ends of the U bolt C, respectively. Screw each one. Thus, the utility pole A is sandwiched and fixed by the reinforcing metal fitting body 1 and the arm metal B.

Next, a second embodiment of the present invention will be described.
FIG. 9 is a plan view of the reinforcing metal fitting body of the armrest support portion reinforcing metal fitting according to the second embodiment of the present invention. FIG. 10 is a front view of the reinforcing metal fitting body. FIG. 11: is a top view of the brace | hook of the armrest support part reinforcement metal fitting of Example 2 of this invention. FIG. 12 is a front view of the contact fitting. FIG. 13: is a top view of the auxiliary | assistant metal fitting of the armrest support part reinforcement metal fitting of Example 2 of this invention. FIG. 14 is a front view of the auxiliary metal fitting. FIG. 15 is a left side view of the auxiliary metal fitting. FIG. 16 is a front view of a reinforcing washer of the armrest support portion reinforcing metal fitting according to the second embodiment of the present invention. FIG. 17 is a left side view of the reinforcing washer. FIG. 18 is a front view of an arm bracket to which the arm bracket support portion reinforcing metal fitting according to the second embodiment of the present invention is attached. FIG. 19 is an explanatory plan view of a state in which the brace support supporting metal fitting of the second embodiment of the present invention is attached to a utility pole to which the brace is attached. FIG. 20 is an enlarged view of the brace support portion reinforcing metal fitting portion in FIG. 19.

  The arm bracket support portion reinforcing metal fitting of the second embodiment includes a reinforcing metal fitting body 5, a metal fitting 6, an auxiliary metal fitting 7, and a reinforcing washer 8. Details will be described below. As shown in FIGS. 9 and 10, the reinforcing metal fitting body 5 has basically the same configuration as that of the first embodiment. The difference is that the reinforcing metal fitting body 5 is longer than the reinforcing metal fitting body 1 of the first embodiment, and the position of the notch 5a is provided at a biased position on one side from the center and on the right side in FIG. ing. In the other structure, as in the first embodiment, through holes 5b are formed at both ends in the longitudinal direction of the back piece.

  Further, as shown in FIGS. 11 and 12, the abutting bracket 6 is also provided longer than the abutting bracket 2 of the first embodiment, similarly to the reinforcing bracket body 5, and the positions of the opening 6a and the curved portion 6b are also illustrated in FIGS. As shown in FIG. 12, it is provided at a position biased to the right side from the center. Other structures are the same as those of the first embodiment, and long holes 6c are provided at both ends in the longitudinal direction.

  The auxiliary metal fitting 7 is sized so that it can be crowned on the armrest E described later. As shown in FIGS. 13, 14 and 15, the auxiliary metal fitting 7 is formed from the center of the rear piece sandwiched between the upper and lower pieces of the channel type fixed length metal fitting. A circular opening 7a is provided slightly on the right side, and horizontally long oval openings 7b are provided on both sides in the longitudinal direction across the opening 7a. Furthermore, through holes 7c are provided on both sides of the two elliptical openings 7b. The arrangement of the two through holes 7 c of the auxiliary metal fitting is the same position as the arrangement of the two through holes 5 b of the reinforcing metal fitting body 5.

  The reinforcing washer 8 is sized so that it can be covered with the auxiliary metal fitting 7 and the reinforcing metal fitting body 5, and as shown in FIGS. 16 and 17, it is an abbreviation of a back piece sandwiched between upper and lower pieces of a channel type short metal fitting. A through hole 8a is formed in the center, and six holes are used here.

Next, a procedure for using the armrest support portion reinforcing metal fitting of the second embodiment will be described.
First, the existing arm E attached to the utility pole A to which the arm support supporting metal fitting is attached will be described. As shown in FIG. 18, the arm metal E has a rectangular tube shape and a fixed length, and through holes are provided in a fixed arrangement on the opposite side and the other side of the rectangular tube. Two base-like through holes 25 are provided at intervals in the base portion of the armor E that contacts the power pole A, and through holes 22 are provided between and on the right side of the through holes 25, respectively.

  As shown in FIGS. 19 and 20, such an arm metal E is stretched in the horizontal direction by contacting the other side of the base portion of the arm metal E to one side of the electric pole A, and hung around the outer periphery of the electric pole A. Both ends of the U-bolts C are inserted from the laterally long through holes 25 on one side of the arm metal E and protruded from the other through-holes 25 on the other side of the arm metal E, and the both ends 23 of these U bolts C are nuts. 24, and the core bolt 9 is passed through the utility pole A from below the central part of the U-bolt C on the other side of the utility pole A, and its end 9a projects from the through hole 22 of the arm metal E. The nut 4 is screwed to fix the arm metal E. Further, two arm ties D are provided from the utility pole A to the arm metal E, and the arm metal E is fixed.

  In this way, the brace support supporting metal fitting is attached to the utility pole A to which the brace E is attached. As shown in FIG. 20, first, the auxiliary metal fitting 7 is leveled, and one end is slightly protruded from the end of the base of the arm metal E to the outside in the longitudinal direction (left side in FIG. 20). Each opening 7b of the auxiliary metal fitting 7 is fitted to both end portions 23 of the U bolt C on the other side of E, and the opening 7a of the auxiliary metal fitting 7 is respectively provided at a position where the end 9a of the core bolt 9 protrudes. Fit it and put it on the arm E.

  The other side of the utility pole A, where the U-bolt C is hung substantially horizontally and the protruding end of the core bolt 9 are placed in the opening 6a of the horizontal fitting 6 The batting metal 6 is applied to the utility pole A, and the upper and lower cutout portions 5a of the reinforcing metal fitting body 5 that is leveled thereon are respectively applied thereto, and the obtuse corner portions 5a 'of the respective cutout portions 5a facing each other. Is applied to the outer peripheral surface of the utility pole A through the metal fitting 6.

  Thereafter, the reinforcing washers 8 are respectively covered with the through holes 8b of the reinforcing washers 8 in the through holes 5b provided at both ends of the back piece of the reinforcing metal fitting body 5. Further, the long bolts 3 are respectively inserted into the through holes 5b and 8a of the reinforcing metal fitting body 5 and the reinforcing washer 8, and are passed through the long holes 6c at both ends of the abutting metal fitting 6. The arm metal E is inserted into through holes 22 provided on one side and the other side of the arm metal E so as to protrude from the through hole 7 c at one end of the auxiliary metal fitting 7. Further, the other long bolt 3b is protruded from a through hole 7c at the other end of the auxiliary metal fitting 7 that protrudes outward from one end of the base of the arm metal E, and each end of each of the long bolts 3a and 3b. The reinforcing washers 8 are respectively covered through the through holes 8a of the reinforcing washers 8. The nuts 4 are screwed from above, and the utility pole A is sandwiched and fixed by the reinforcing metal fitting body 5 and the arm metal E. Thereafter, the nuts 24 at both ends 23 of the U-bolt C are once removed, and the both ends 23 are covered with the reinforcing washers 8 through the through holes 8a of the reinforcing washers 8, and the nuts 24 are screwed onto the nuts 24, respectively. To do.

  Next, the effect when these bracelet support part reinforcing metal fittings were provided was tested and data was measured. For comparison, data in the case where no brace support reinforcing metal fitting is provided is also measured, and these results are shown in the graph of FIG.

  First, as shown in FIG. 1 and FIG. 19, this experiment is performed from the center of the utility pole A when the horizontal load P is loaded on the armature at a position of 1025 mm from the center of the utility pole A. The displacement amount of the arm metal at the position of 575 mm was measured, and these results were graphed.

  In this graph, when the load P = 700 N is loaded on the armature at a position of 1025 mm from the center of the utility pole A, the displacement amount of the armature at a position of 1,575 mm from the center of the power pole is within 10 mm. In such a case, it is assumed that there is a reinforcing effect.

  In the case of each brace support portion reinforcing bracket of Examples 1 and 2 (in FIG. 21, “old type reinforcement is present” indicates the case where the brace support portion reinforcement bracket of Example 1 is attached, and “new type reinforcement is present”. (The case where the brace support part reinforcement metal fitting of Example 2 is attached is shown), The load P is about 800N, and the displacement amount is about 10 mm. And when the load P is 700 N, it is 8.5 mm when the arm bracket support part reinforcing metal fitting of Example 1 is attached, and 6.8 mm when the arm metal support part reinforcing metal fitting of Example 2 is attached. I understand that.

On the other hand, when each bracelet support part reinforcement metal fitting is not attached (in FIG. 21, it shows by "no old type reinforcement" and "no new type reinforcement"), the load P is about 400 to 440 N and the displacement is 10 mm. . And when each bracelet support part reinforcement metal fitting is not attached, when the load P700N is loaded, it is clear that the amount of displacement is 10 mm or more.
From these facts, it can be seen that when the brace support supporting metal fittings of Examples 1 and 2 are attached, the brace is effectively reinforced.

  Moreover, the said metal fittings 2 and 6 consist of a thin metal plate, provide the horizontally long rectangular opening 2a or 6a in the approximate center part of a longitudinal direction, and also provide the long hole 2c or 6c in the both ends of a longitudinal direction, respectively. Therefore, even if the outer shape of the utility pole A and the shape of the curved portion of the contact fitting 2 or 6 do not match when attached by being interposed between the reinforcing bracket body 1 or 5 and the utility pole A, it is flexible. Further, by tightening the reinforcing metal fitting body 1 or 5 with the long bolt 3, the reinforcing metal fitting body 1 or 5 is pressed against the electric pole A by the reinforcing metal fitting body 1 or 5, and the gap is eliminated and the fitting is firmly attached to the electric pole A.

  In the said Example, when the said reinforcement metal fittings main bodies 1 and 5 are contact | abutted and attached to the said electric pole A, the said metal fittings 2 and 6 are interposed between the said reinforcement metal fittings main bodies 1 and 5 and the said electric pole A. FIG. However, these may be omitted.

It is plane explanatory drawing of the state which attached the armrest support part reinforcement metal fitting of Example 1 of this invention to the utility pole to which the armrest was attached. It is a top view of the reinforcement metal fitting body of the armrest support part reinforcement metal fitting of Example 1 of this invention. It is a front view of the reinforcement metal fitting main body of the armrest support part reinforcement metal fitting of Example 1 of this invention. It is a right view of the reinforcement metal fitting body of the armrest support part reinforcement metal fitting of Example 1 of this invention. It is a top view of the metal fitting of the armrest support part reinforcement metal fitting of Example 1 of this invention. It is a front view of the brace of the brace support part reinforcement metal fitting of Example 1 of this invention. It is a right view of the metal fitting of the armrest support part reinforcement metal fitting of Example 1 of this invention. It is a front view of the arm bracket which attaches the arm bracket support part reinforcement metal fitting of Example 1 of this invention. It is a top view of the reinforcement metal fitting main body of the armrest support part reinforcement metal fitting of Example 2 of this invention. It is a front view of the reinforcement metal fitting body of the armrest support part reinforcement metal fitting of Example 2 of this invention. It is a top view of the metal fitting of the armrest support part reinforcement metal fitting of Example 2 of this invention. It is a front view of the metal fitting of the armrest support part reinforcement metal fitting of Example 2 of this invention. It is a top view of the auxiliary metal fitting of the brace support part reinforcement metal fitting of Example 2 of this invention. It is a front view of the auxiliary metal fitting of the brace support part reinforcement metal fitting of Example 2 of this invention. It is a left view of the auxiliary metal fitting of the brace support part reinforcement metal fitting of Example 2 of this invention. It is a front view of the washer for reinforcement of the brace support part reinforcement metal fitting of Example 2 of this invention. It is a left view of the reinforcement washer of the armrest support part reinforcement metal fitting of Example 2 of this invention. It is a front view of the arm bracket which attaches the arm bracket support part reinforcement metal fitting of Example 2 of this invention. It is plane explanatory drawing of the state which attached the armrest support part reinforcement metal fitting of Example 2 of this invention to the utility pole to which the armrest was attached. FIG. 20 is an enlarged view of a brace support part reinforcing metal fitting part in FIG. 19. It is the graph which experimented the reinforcement condition with the case where it does not use the case where the arm bracket support part reinforcement metal fitting of Example 1, 2 of this invention is used. It is a schematic front view of the utility pole which attached the brace. It is explanatory drawing which shows a mode that a load is applied to the utility pole which attached the brace by a strong wind.

A Telephone pole B Arm metal C U bolt D Arm tie E Arm metal F Arm metal 1 Reinforcing bracket body 1a Notch 1b Through hole 2 Bracket 2a Opening 2b Curved portion 2c Long hole 3 Long bolt 4 Nut 5 Reinforcing bracket body 5a Notch Part 5b Through-hole 6 Bracket 6a Opening 6b Curved part 6c Long hole 7 Auxiliary metal fitting 7a Opening 7b Opening 7c Through-hole 8 Reinforcing washer 8a Through-hole 9 Core bolt 9a End 21 Through-hole 22 Through-hole 23 Both ends of U bolt 24 nuts

Claims (4)

On one side of the utility pole, a base part of a brace with a through hole provided at a corresponding position in a fixed arrangement on one side and the other side of the rectangular tube with a fixed length is in contact with and extended in the horizontal direction. Put both ends of the U-bolt hung around the outer circumference of the armor through one side through-hole and project from the other through-hole, and pass the core bolt from the other side of the power pole into the power pole. Ends are inserted from one side through-hole of the arm metal and protruded from the other side through-hole, both ends of the U-bolt and the end of the core bolt are screwed with nuts, respectively, and the arm metal from the utility pole In an electric pole that has an arm tie and fixed the armrest,
Reinforcing metal fittings with trapezoidal cutouts are provided on the outer edges of the center parts of the upper and lower pieces facing each other in a channel type fixed length metal, and both longitudinal ends of the back piece of the reinforcing metal fittings Each has through holes,
On the other side of the utility pole, the upper and lower cutout portions of the reinforcing metal fitting body, which are horizontally placed by placing the U bolt in a channel groove, are respectively applied to the portions where the U bolt is hung substantially horizontally. Long bolts are inserted into the through holes provided at both ends of the back piece of the reinforcing metal fitting body, and the ends of the long bolts are inserted into the through holes provided on both sides of the arm metal. A bracelet supporting portion reinforcing metal fitting, wherein the reinforcing metal fitting main body is fixed by projecting at respective positions outside both ends and screwing nuts respectively. On one side of the utility pole, a base part of a brace with a through hole provided at a corresponding position in a fixed arrangement on one side and the other side of the rectangular tube with a fixed length is in contact with and extended in the horizontal direction. Put both ends of the U-bolt hung around the outer circumference of the armor through one side through-hole and project from the other through-hole, and pass the core bolt from the other side of the power pole into the power pole. Ends are inserted from one side through-hole of the arm metal and protruded from the other side through-hole, both ends of the U-bolt and the end of the core bolt are screwed with nuts, respectively, and the arm metal from the utility pole In an electric pole that has an arm tie and fixed the armrest,
Reinforcing metal fittings with trapezoidal cutouts are provided on the outer edges of the center parts of the upper and lower pieces facing each other in a channel type fixed length metal, and both longitudinal ends of the back piece of the reinforcing metal fittings Each has through holes,
A horizontally long slot is provided on both sides of the back piece sandwiched between the opposed upper and lower pieces of a channel type fixed length metal fitting, and a hole is provided between these elongated holes. Auxiliary metal fittings having through holes on both sides of the hole are provided, and the arrangement of the two through holes of the auxiliary metal fitting is the same position as the arrangement of the two through holes of the reinforcing metal fitting body,
The auxiliary metal fittings are leveled, one end protrudes outward in the longitudinal direction from the base of the arm metal, and each length of the auxiliary metal fitting is located on the other side of the arm metal where both end portions of the U bolt protrude. The holes are covered with the holes of the auxiliary metal fittings on the ends of the core bolts protruding from between both ends of the U bolts,
On the other side of the utility pole, the upper and lower cutouts of the reinforcing metal fitting body, which are horizontally placed by placing the U bolt in a channel groove, are assigned to the portions where the U bolt is hung substantially horizontally. Insert a long bolt into each through-hole of the reinforcing metal fitting body, insert the end of one long bolt into the through-hole provided on both sides of the arm metal, and project from one through-hole of the auxiliary metal fitting, The end of the other long bolt is protruded through the through hole of the auxiliary metal fitting that protrudes outward from one end of the base portion of the arm metal, and a nut is screwed to the end of each long bolt, thereby the reinforcing metal fitting body and auxiliary Arm brace support reinforcement metal fittings characterized by fixing the metal fittings. A plurality of reinforcing washers are provided by providing a through hole at the approximate center of the back piece sandwiched between the opposed upper and lower pieces of a channel type short metal fitting,
When attaching the reinforcing metal fitting body using the auxiliary metal fittings, the through holes of the reinforcing washer are aligned with the positions of the through holes of the reinforcing metal fitting body and the auxiliary metal fittings, and the reinforcing washers are covered. The long bolts are inserted from the ends, and nuts are screwed onto the ends of the long bolts protruding from the through holes of the reinforcing washers, and both ends of the U bolts protruding from the long holes of the auxiliary metal fittings. The brace supporting part reinforcing metal fitting according to claim 2, wherein the nut of the part is once removed, and both ends are covered with a reinforcing washer, and the nut is screwed on the nut. It is a metal plate that has the same width and length as the reinforcing metal fitting body, has a substantially central portion in the longitudinal direction curved, provided with laterally elongated openings to both sides of the curved portion, and elongated holes in both longitudinal end portions. Each provided with a thin metal fitting,
When the reinforcing metal fitting body is attached in contact with the power pole, long bolts are passed through the through holes at both ends of the reinforcing metal fitting body and the two long holes of the aforesaid metal fitting, respectively. 4. The device according to claim 1, wherein the metal fittings are interposed between the metal fittings, and the metal fittings are brought into contact with both side corners of the notched portions of the upper and lower pieces of the reinforcing metal fitting body. The brace support reinforcement metal fitting described in 1.

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