JP2719491B2 - Lightning arrester mounting unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention is a lightning protection insulator for power lines are those concerning the mounting <br/> Units lightning insulator for attachment to the support arm of the tower.

[0002]

2. Description of the Related Art Conventionally, the present applicant has made various proposals as a mounting device for a lightning arrester of this type.
No. 160621, No. 5-25613, No. 5
No. 25614, Japanese Utility Model Laid-Open No. 5-65018, etc.).

For example, Japanese Unexamined Utility Model Publication No. 1-160621 discloses a mounting device as shown in FIGS. That is, the mounting adapter 111 for mounting and supporting the lightning arrester 110 is a fixed mounting plate 113 disposed on the bottom surface of the horizontal portion 112a of the angle member 112 of the tower arm.
A locking member 114 locked to the vertical portion 112b of the angle member 112; a fastening member 115 disposed on the upper surface of the horizontal portion 112a; and a position adjustable in the horizontal direction with respect to the fastening member 115. Movable mounting plate 1 for supporting lightning arrester
16 is included.

The upper end of the locking member 114 is formed in a U-shape so as to engage with the upper edge of the vertical portion 112b of the angle member 112. One end of the clamp 115 is bent by an amount corresponding to the thickness of the horizontal portion 112 a of the angle member 112, and the horizontal portion 112 is fixed to the fixed mounting plate 113.
a can be pinched.

[0005] A fixed mounting plate 113 is disposed on the bottom surface of the horizontal portion 112a of the angle member 112, and a locking member 114 is connected to the vertical portion 112 of the angle member 112.
b. In this state, the locking fitting 114 is tightened and fixed to the fixed mounting plate 113 with the bolt 117. Also,
A fastener 115 is disposed on the upper surface of the horizontal portion 112a of the angle member 112, and a bolt 118 is attached to the fixed mounting plate 113.
Tighten and fix with. Further, the movable mounting plate 116 is mounted on the fixed mounting plate 113 with bolts 119, and the lightning arrester insulator 110 is suspended and supported at the tip of the movable mounting plate 116.

In Japanese Utility Model Laid-Open Publication No. Hei 5-25613,
A mounting device as shown in FIG. 25 is disclosed. That is, using the mounting plate 120, the first L-shaped clamping member 121 and the second L-shaped clamping member 122, the two clamping members 12 are used.
1 and 122, the angle member 112 is sandwiched and the bolt 1
At 23, the two clamps 121, 122 are tightened. Then, the attachment plate 120 is attached to the extension of the first L-shaped clamping metal member 121 with bolts 124. The lightning arrester is supported on the tip of the mounting plate 120.

[0007]

However, in the former mounting device, one end of the fastener 115 is connected to the bolt 11.
At 8, it is fastened and fixed to the fixed mounting plate 113, and the bent engaging portion presses the horizontal portion 112 a of the angle member 112. For this reason, it is necessary to match the degree of bending of the fastener 115 with the thickness of the horizontal portion 112a, and the production of the fastener 115 is troublesome. Then, the fastener 115
If the degree of bending does not match the thickness of the horizontal portion 112a, there is a problem that the clamping force against the fixed mounting plate 113 is not sufficient, and rattling occurs.

In addition, the vertical portion 112 of the angle member 112
If the thickness of b and the horizontal portion 112a are different, there is a problem that the locking fitting 114 and the fastening fitting 115 cannot be used as they are.

On the other hand, in the latter mounting device, first,
After attaching the two clamps 121, 122 to the angle member 112, the mounting plate 120 must be attached to the extension of the first L-shaped clamp 121, and there are many places to attach with bolts. For this reason, there are problems that the structure is complicated, mounting is troublesome, and the number of parts is large, and handling is inconvenient. For this reason, there has been troublesome preparation of various types of fasteners 115 according to the thickness of the horizontal portion 112a.

The present invention has been made in view of such a problem existing in the prior art. And has an object to be firmly assembled, together with a backlash can be prevented, and to provide a mounting unit of the arrester insulators can cope with variations in the thickness of the angle member. Further, it is an another object, the structure is simple, the mounting is easy and the number of components is to provide a mounting unit for convenient lightning protection insulator to less handling. Furthermore, it is an other object, easy transportation is, manufacture is to provide a mounting unit of simple lightning protection insulator.

[0011]

Means for Solving the Problems In order to achieve the above object, in the invention of the lightning arrester attachment unit according to the first aspect, the lightning arrester is disposed on the bottom surface of the horizontal rib of the angle material constituting the support arm of the tower, A board supporting the lightning arrester at one end, a first metal fitting provided at the other end of the board, and fixed to an upper end of a vertical rib of the angle material;
In a mounting unit for a lightning arrester, which is provided at a substantially intermediate portion of a substrate and is provided with a second fitting engaged with an upper surface of an end of a horizontal rib, an end of the second fitting opposite to the engagement side. And a spacer provided between the portion and the substrate, and a spacer provided between the spacer and the end of the horizontal rib, and the second metal fitting is fastened to the substrate so that the engaging portion of the second metal fitting is connected to the horizontal rib. And crimping means for crimping.

According to a second aspect of the present invention, in the first aspect, a substantially hook-shaped hook is formed at an upper end of the first metal fitting, and the hook is formed by a vertical rib. Is fixed to the upper end portion of the housing.

Further, according to a third aspect of the present invention, in the first or second aspect of the invention, the first metal fitting is constituted by a plurality of bolts connected to each other. Is what you do.

In addition, according to a fourth aspect of the present invention, in the third aspect of the present invention, the plurality of bolts are connected at an upper end thereof, and a hook is formed at the connecting portion. It is assumed that.

According to a fifth aspect of the present invention, in the third aspect of the present invention, the plurality of bolts are connected via a connecting rod at an intermediate portion.

According to the sixth aspect of the present invention, there is provided the third to fifth aspects.
In the invention described in the above, the bolt has a portion which is pressed against the outer surface of the vertical rib between the straight portion or the straight portion and the hook portion, and the end of the vertical rib is formed on the inner peripheral surface of the hook portion. An inclined portion to be pressed against the edge is formed, and the pressure-contact portion of the engaging portion is configured to be different depending on the thickness of the vertical rib.

According to the seventh aspect of the present invention, the third to fifth aspects are provided.
In the invention described in (1), an elongated hole is formed in the substrate, and the bolt is foldably inserted into the elongated hole.

[0018] In the invention according to claim 8, claims 1 to 7 are provided.
In the invention described in the above, the spacer is a second metal fitting or a bolt screwed to the substrate, the head of which is connected to the second metal fitting or the substrate.
And a metal fitting.

According to the ninth aspect of the present invention, the first to seventh aspects are provided.
In the invention described in (1), the spacer is formed integrally with the second metal fitting. Claim 10
To the invention described, the invention according to claims 1 to 7, the spacer is a bolt which is screwed to the substrate or the second metal fitting, it abuts the tip of the substrate or the second fitting <br / > It is characterized by having.

[0020] According to the eleventh aspect of the present invention, in the first aspect,
In the invention described in Item 10, an interval maintaining member for maintaining an interval between the engaging portion of the second metal fitting and the substrate is provided.

[0021] According to the twelfth aspect, in the eleventh aspect,
In the invention described in (1), the spacing member is a member that is deformed by the pressing by the pressing unit.

According to the thirteenth aspect, in the eleventh aspect,
In the invention described in the above, a long hole is formed in the substrate or the second metal fitting, a bolt is inserted through the long hole, and the head of the bolt is positioned between the substrate and the second metal fitting to maintain the interval. At the end of the elongated hole of the substrate or the second metal fitting, a passing portion through which the head of the bolt serving as the spacing member can pass is formed, and the second portion is formed by the bolt forming the crimping means.
Is fixed to the substrate by tightening.

[0023]

[0024]

[0025]

[0026]

According to the first aspect of the present invention, in the lightning arrester mounting unit, the spacer is provided between the end of the second metal fitting and the substrate, and the second metal fitting is provided between the spacer and the horizontal rib. Crimping means for clamping to the substrate is provided. For this reason, when the crimping means operates, the engaging portion of the second metal fitting presses the horizontal rib of the angle material to the substrate with the spacer as a fulcrum, the predetermined crimping strength is secured, and the assembly is performed firmly. Will be Moreover, when the second metal fitting is arranged on the horizontal rib of the angle material, the engaging portion of the second metal fitting can be lifted up with the spacer as a fulcrum and arranged on the horizontal rib, so that the mounting operation can be easily performed. .

Further, in the mounting unit according to the second aspect, a substantially U-shaped engaging portion is provided at an upper end portion of the first metal fitting. For this reason, the hooking portion may be hooked and fixed on the upper end of the vertical rib of the angle material, and the mounting operation is easy.

Further, according to the third aspect of the present invention, the first
Are connected to each other by a plurality of bolts. For this reason, the first metal fitting does not move such as rotation, and can be securely mounted, and a plurality of bolts can be integrally handled, which facilitates mounting and handling.

According to the fourth aspect of the present invention, a plurality of bolts are connected at the upper end thereof, and a hook is formed at the connection. Accordingly, it is only necessary to hook the hooked portion at the upper end of the bolt to the upper end of the vertical rib of the angle material, and mounting and handling are easy.

Further, in the invention of the mounting unit according to the fifth aspect, the plurality of bolts are connected at the intermediate portion by the connecting rod. In this case, a plurality of bolts may be joined by a connecting rod by welding or the like, and the manufacture is easy. Moreover, it is possible to prevent the first metal fitting from being detached from the substrate by the connecting rod, or to restrict the movement of the first metal fitting so as to reduce the size.

In addition, in the mounting unit according to the sixth aspect, the bolt as the first metal fitting has a straight portion,
A hook portion at the tip is formed. An inclined portion is provided on the inner peripheral surface of the hook. For this reason, the outer surface of the vertical rib of the angle material is pressed against the straight portion or the straight portion of the bolt and the hook portion, and at the same time, the edge of the vertical rib is attached to the slanted portion of the inner peripheral surface of the hook portion. Is pressed. Therefore, the assembly is sturdy and there is no play after the assembly. Moreover, even if the vertical ribs of the angle members have different thicknesses, the edges are pressed against the oblique portions of the bolts, so that it is possible to cope with angle members having different thicknesses.

In the mounting unit according to the seventh aspect, a long hole is formed in the substrate, and the bolt is inserted into the long hole so as to be foldable. Therefore, when not in use, folding the bolts is convenient for transportation and storage.

Further, in the mounting unit according to the present invention, the head of the second metal fitting or the bolt screwed to the substrate is interposed between the substrate and the second metal fitting to form a spacer. I have. Therefore, the head of the bolt can be used as a spacer, and the configuration is simplified.

In the mounting unit according to the ninth aspect, since the spacer is formed integrally with the second fitting, the number of parts is reduced, and the configuration is simplified. Claim 10
In mounting unit according to the bolt as a spacer is screwed to the substrate or the second metal fitting, the tip of the bolt into the second fitting or the substrate is in contact with. Therefore, by inserting or removing the bolt, the distance between the substrate and the second metal fitting can be easily adjusted.

The mounting unit according to the eleventh aspect is provided with a spacing member for maintaining a spacing between the engaging portion of the second metal fitting and the substrate. Therefore, it is easy to attach the second metal fitting to the horizontal rib of the angle material.

[0036] In the attachment unit according to the twelfth aspect, the spacing member is a deformable member such as a coil spring that is deformed by the pressing by the pressing means. Then, due to the deformation action of the spacing member, it is not necessary to remove the spacing member, and the second metal fitting is easily mounted.

According to the thirteenth aspect of the present invention, a long hole is formed in the substrate or the second metal member, a bolt as a spacing member is inserted into the long hole, and the second metal member is mounted on the substrate. Are arranged on the horizontal ribs of the angle material while maintaining an interval with respect to. Next, the bolt is extracted from the passage portion of the end of the long hole of the substrate or the second metal fitting. afterwards,
The second metal fitting is fastened and fixed to the substrate by the crimping means.

[0038]

[0039]

[0040]

[0041]

EXAMPLES (First Embodiment) Hereinafter, a first embodiment embodying the mounting unit of the lightning protection insulator of the present invention will be described in detail with reference to FIGS. 1-7.

As shown in FIGS. 4 and 5, the fixing bracket 1 is fixedly arranged on the lower surface of the support arm 2 of the steel tower.
, A supporting bracket 3 is rotatably mounted. The insulator series 5 to which a plurality of insulators 4 are usually connected is suspended and supported at the lower end of the support bracket 3 via a suspension bracket 6. The electric wire clamp 7 is attached to the lower end of the insulator string 5, and the power transmission line 8 is supported by the electric wire clamp 7. Charging side arc horn 9
Are attached to the transmission line 8.

As shown in FIGS. 1 to 3, the substrate 11 of the mounting unit 10 of this embodiment is disposed on the bottom surface of a horizontal rib 12a of an angle member 12 having an L-shaped cross section. First
In the metal fitting 13, the upper ends of a pair of J bolts are integrally connected by a U-shaped connecting portion 13a, and the lower end is formed with a male screw 13b. The lower part of the first metal fitting 13 is a straight part 14, and the upper part is a hook-shaped engaging part 15. The hooking portion 15 is inclined outward by an angle θ with respect to the linear portion 14, and an inclined portion 16 is formed on the inner peripheral surface of the hooking portion 15. On the other hand, one end of the substrate 11 has a pair of long holes 17.
Is transparently provided.

The hook 15 of the first metal fitting 13 is hooked on the upper end of the vertical rib 12 b of the angle member 12, and the lower end is fitted in the long hole 17 of the substrate 11. Then, one end of the substrate 11 is fastened to the angle member 12 by the double nut 19 on the male screw 13 b with the washer 18 interposed from below the substrate 11. At this time, the straight portion 14 of the first metal fitting 13, particularly, the upper end thereof is a vertical rib 12 b of the angle material 12.
And the slanted portion 1 of the hook 15
6 is pressed against the upper end of the vertical rib 12b, and is firmly assembled.

The second fitting 20 has a rectangular plate shape, and one end thereof is engaged with the upper surface of the horizontal rib 12 a of the angle member 12.
The other end of the second metal fitting 20 is provided with a pair of mounting holes 21. A fulcrum bolt 22 as a spacer is attached to the attachment hole 21. That is,
The head of the fulcrum bolt 22 is connected to the substrate 11 and the second metal fitting 2.
0, so that the fulcrum bolt 22 is
1 and is fastened and fixed by a nut 24 via a washer 23. A crimping bolt 25 as a crimping means is inserted from below into a through hole 26 formed in the substrate 11 and an insertion hole 27 formed substantially at the center of the second metal fitting 20. Then, the double nut 29 screwed to the crimping bolt 25 tightens the second metal fitting 20 via the washer 28, whereby the second metal fitting 20 is connected to the angle material 12.
Is pressed to the horizontal rib 12a.

The adapter 30 having a substantially V-shaped tip is superposed on the substrate 11. A support bolt 33 is inserted from below into a support hole 31 of the adapter 30 and a mounting hole 32 of the board 11, and a double nut 35 is tightened and fixed to the adapter 30 via a washer 34. The arc-shaped long hole 36 is formed at the tip of the substrate 11, and an insertion hole 37 is provided in the adapter 30. Then, a positioning bolt 38 is inserted from below into a predetermined position of the elongated hole 36, and a double nut 40 is inserted through an insertion hole 37 of the adapter 30 and a washer 39 to fasten and fix the adapter 30.
At this time, by loosening the double nut 40, the adapter 30 can be turned by a predetermined amount in the lateral direction about the support bolt 33 with respect to the substrate 11, and the direction of the adapter 30 can be changed.

As shown in FIGS. 4 and 5, the lightning arrester 41 is attached obliquely to the tip of the adapter 30 by bolts 42. The lightning arrester 41 contains a resistance element 43 mainly composed of zinc oxide and having a non-linear voltage-current characteristic. The arc horn mounting bracket 44 is mounted and supported on the lower end of the lightning arrester 41, and a grounding-side arc horn 45 is mounted on the arc horn mounting bracket 44. The ground-side arc horn 45 is disposed so as to face the power-supply-side arc horn 9 provided on the transmission line 8, and an air discharge distance G is formed therebetween.

When a lightning surge current enters the transmission line 8 due to the lightning strike, the current flashes over the air discharge distance G and flows through the resistance element 43 in the lightning arrester 41. Further, current flows to the support arm 2 via the adapter 30 and the substrate 11, and is discharged from the steel tower to the ground. Further, the subsequent flow due to the operating voltage generated thereafter is suppressed and cut off by the resistance element 43 in the lightning arrester 41 and the air discharge distance G.

The mounting unit 10 of the lightning arrester 41 according to the present embodiment, when not in use, has the first metal fitting 13 folded down along the substrate 11 as shown in FIG. For this reason, the mounting unit 10 is made compact and transportation and handling become easy. Then, at the time of use, as shown in FIG.
The horizontal ribs 12a are arranged on the bottom surface of the second horizontal ribs 12a, and the horizontal ribs 12a are sandwiched between the substrate 11 and the engaging portions of the second metal fittings 20.
On the other hand, the first metal fitting 13 is raised, and the hook 15
On the upper end of the vertical rib 12b of the angle member 12.
Then, the double nut 19 of the first metal fitting 13 is tightened.

At this time, the upper end of the linear portion 14 of the first metal fitting 13 is pressed against the outer surface of the vertical rib 12 b of the angle member 12, and at the same time, the upper end of the linear portion 14 is perpendicular to the inclined portion 16 of the inner peripheral surface of the hook 15. The edge of the rib 12b is pressed. Therefore, this first
The metal fittings 13 are pressed against both sides of the vertical ribs 12b of the angle member 12, so that the assembling is firm and the rattling after the assembling is prevented. In addition, as shown by a two-dot chain line in FIG. 7, even if the thickness of the vertical rib 12b of the angle member 12 is different, the edge is pressed against the oblique portion of the first metal fitting 13, so that the thickness is different. It is possible to easily cope with the angle member 12.

Subsequently, crimping bolt 2 as crimping means
When the nut 5 is tightened, the engaging portion of the second metal fitting 20 clamps the horizontal rib 12a between the fulcrum bolt 22 and the substrate 11 with a strong force. Therefore, the substrate 11 has the horizontal ribs 12a.
On the other hand, a required crimping strength is secured at the end by the first metal fitting 13 and at the intermediate part by the second metal fitting 20, and the assembly is performed firmly.

Further, the second metal fitting 20 is connected to the angle material 12.
When the second metal fitting 20 is disposed on the horizontal rib 12a, the end of the second metal fitting 20 can be lifted up using the fulcrum bolt 22 as a fulcrum and disposed on the horizontal rib 12a, so that the mounting operation can be easily performed. (Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. Note that, in this embodiment, parts different from the first embodiment will be mainly described.

The first metal fitting 13 has a pair of bolts 13c each having a hook-like tip. The connecting rod 50 is welded between the linear portions 14 of the pair of bolts 13c. The fulcrum bolt 22 is inserted into the female screw hole 51 provided at the end of the second metal fitting 20, and the head is attached to the substrate 11 and the second metal fitting 20.
It is screwed so as to be located between them.

In this embodiment, since the connecting rod 50 is located at an intermediate portion of the first fitting 13, the first fitting 13 moves downward in the long hole 17 of the substrate 11. Is restricted by the connecting rod 50. Therefore, the mounting operation can be performed by gripping the upper part of the first metal fitting 13 from the connecting rod 50, and the mounting can be easily performed. Moreover, since the connecting rod 50 is joined to the bolt 13c by welding, manufacture is easy. Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIGS.

The second metal fitting 20 is formed in a substantially horizontal L-shape, and the curved portion 60 at the end serves as a spacer. Then, the crimping bolt 25 is tightened to secure the second metal fitting 2.
When pressing 0 to the horizontal rib 12a of the angle material 12,
With the curved portion 60 as a fulcrum, the second metal fitting 20 is effectively pressed against the horizontal rib 12a. Note that the adapter 30 is arranged linearly with respect to the substrate 11.

In this embodiment, since the spacer serving as a fulcrum when the second metal fitting 20 is crimped is integrated with the second metal fitting 20, the number of parts is small and the configuration is simple. (Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIGS.

A pair of female screw holes 70 are provided on the substrate 11 at positions corresponding to the ends of the second metal fittings 20 on the adapter 30 side. It is screwed so as to be located between the metal fittings 20. Then, tighten the crimping bolt 25 to secure the second
Is pressed against the horizontal rib 12a. At this time, the fulcrum bolt 71 serves as a fulcrum, and the second fitting 20 is effectively pressed against the horizontal rib 12a.

In this embodiment, since the spacer serving as a fulcrum when the second metal fitting 20 is crimped is screwed into the female screw hole 70 of the substrate 11, the configuration is simple. (Fifth Embodiment) Next, a fifth embodiment of the present invention will be described with reference to FIGS.

In this embodiment, similarly to the fourth embodiment, a pair of female screw holes 70 are provided in the substrate 11, and long supporting bolts 71 serving as spacers are screwed into the female screw holes 70 from below the substrate 11. Have been combined. The tip of the screw portion of the fulcrum bolt 71 is in contact with the lower surface of the second metal fitting 20. The nut 80 is screwed to the fulcrum bolt 71 to prevent the fulcrum bolt 71 from loosening.

According to this embodiment, by adjusting the screwing amount of the fulcrum bolt 71, the substrate 11 and the second metal fitting 2 are adjusted.
Since the distance between the second metal fitting 20 and the substrate 11 can be adjusted optimally according to the thickness of the horizontal rib 12 a of the angle member 12 because the distance between the substrate 11 and the second fitting 20 can be adjusted. (Sixth Embodiment) Next, a sixth embodiment of the present invention will be described with reference to FIG.

A mounting hole 21 is formed at the end of the second metal fitting 20 on the adapter side. An insertion hole 90 is provided in the substrate 11 at a position corresponding to the mounting hole 21 and the substrate 1
A spacer 91 is interposed between the first and second metal fittings 20. Then, a bolt 92 is inserted from below the substrate 11 into the insertion hole 90 and the hole 91a of the spacer 91, and further inserted into the mounting hole 21 and protrudes upward. And the second
Is fastened with a double nut 93 via a washer 23.

In this embodiment, by changing the spacer 91 to one having a different thickness, the substrate 11 and the second
The distance between the horizontal rib 12a and the metal fitting 20 can be suitably adapted to the thickness of the horizontal rib 12a. (Seventh Embodiment) Next, a seventh embodiment of the present invention will be described with reference to FIGS.

As shown in FIGS. 18 and 19, the long hole 100 is provided at the center of the second metal fitting 20 and its adapter 30 is provided.
A bolt passing portion 100a formed in a round hole is provided at the end on the side. The space holding bolt 101 as a space holding member has a long hole 10 below the second metal fitting 20 so that its head is located between the substrate 11 and the second metal fitting 20.
0, and a nut 102 for retaining the screw is screwed into the spacing holding bolt 101. The fulcrum bolt 103 serving as a spacer is screwed and fixed to the female screw hole 104 of the substrate 11 so that the head is located between the substrate 11 and the second metal fitting 20.

Further, a pair of crimping bolts 105 as a crimping means is inserted into the insertion hole 1 of the substrate 11 from below the substrate 11.
06, the mounting hole 107 of the second metal fitting 20 is inserted. The second metal fitting 20 is tightened with a nut 108.

Then, with the nut 102 and the nut 108 loosened, when the mounting unit 10 is mounted, the substrate 11 and the second metal fitting 20 are integrally moved to the horizontal rib 12a side of the angle material 12, 2 bracket 20
Is placed on the horizontal rib 12a. At this time, the head of the spacing holding bolt 101 is connected to the substrate 11 and the second metal fitting 20.
Is maintained, the engaging portion of the second metal fitting 20 can be easily placed on the horizontal rib 12a. Then, the head of the spacing bolt 101 is pushed by the edge of the horizontal rib 12 a of the angle member 12 and slides in the elongated hole 100.

Further, when the substrate 11 and the second metal fitting 20 are moved to the angle member 12 side, as shown in FIGS.
At this position, the distance maintaining bolt 101
Can be extracted upward. Next, crimping bolt 1
Then, the horizontal rib 12a is clamped between the second metal fitting 20 and the substrate 11 by tightening 05. Note that the second metal fitting 20 is connected to the horizontal rib 1.
Before attaching to the 2a, the nut 102 is tightened to prevent the gap maintaining bolt 101 from falling out of the bolt passage portion 100a.

As described above, in this embodiment, the second metal fitting 20 is provided with the long hole 100, and the space holding bolt 101 is slidably mounted in the long hole 100. The space between the metal fittings 20 is maintained, and the mounting unit 10 can be easily mounted on the horizontal rib 12a. (Eighth Embodiment) Next, an eighth embodiment of the present invention will be described with reference to FIG.

In this embodiment, the fulcrum bolt 10
3, a coil spring 109 serving as a deformable member is interposed between the substrate 11 and the second metal fitting 20.
The space between the metal fittings 20 is maintained.

Therefore, similarly to the seventh embodiment, the mounting unit 10 can be easily mounted on the horizontal rib 12a.
Then, as the second metal fitting 20 is pressed against the horizontal portion 12a, the coil spring 109 is compressed and deformed, and the coil spring 109 does not hinder the compression. Therefore, it is not necessary to remove the coil spring 109 when the second metal fitting 20 is pressed against the horizontal portion 12a.

It should be noted that the present invention is not limited to the configuration of the above-described embodiment, and can be embodied by changing the configuration as follows without departing from the spirit of the present invention. (1) In the first embodiment, the fulcrum bolt 22 is
1 or the fulcrum bolt 71 in the fifth embodiment
Or to be provided on the metal fitting 20. (2) In the eighth embodiment, a deformable member such as a leaf spring, rubber, or foam is used instead of the coil spring 109. With such a configuration, the engaging portion of the second metal fitting 20 can be more easily engaged with the horizontal rib 12a of the angle member 12 by these deformable members. (3) As the first metal fitting 13, a pair of J bolts is used without being connected to each other. (4) In the seventh embodiment, the long hole 100 is provided in the substrate 11. In this case, when the distance maintaining bolt 101 reaches the bolt passage portion 100a, the distance maintaining bolt 1
It is desirable to provide a fall prevention piece on the substrate 11 so that the 01 does not fall.

[0071]

Since the present invention is configured as described above, it has the following excellent effects. According to the mounting unit of the lightning protection insulator of the invention, can be firmly assembled to the support arm of the tower, with a backlash can be prevented, corresponding to variations in the thickness of the angle member constituting the supporting arm that Can be. Further, the structure is simple, the mounting to the support arm is easy, and the number of parts is small, which is convenient for handling. Furthermore, it is easy to transport and can be manufactured easily.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a mounting unit of a lightning arrester insulator according to a first embodiment of the present invention is mounted on an angle member.

FIG. 2 is a bottom view showing a state where the mounting unit is mounted on an angle member.

FIG. 3 is a side view showing a state where the mounting unit is mounted on an angle member.

FIG. 4 is a plan view showing a state in which the lightning arrester device is mounted on a support arm of a steel tower by a mounting unit.

FIG. 5 is a front view showing a state in which the lightning arrester device is mounted on a support arm of a steel tower by a mounting unit.

FIG. 6 is a partially broken front view showing the mounting unit in a transport state.

FIG. 7 is a cross-sectional view showing, in an enlarged manner, a mounting state of a mounting bracket to an angle member.

FIG. 8 is a sectional view showing a mounting unit according to a second embodiment of the present invention.

FIG. 9 is a side view showing a state where the mounting unit is mounted on the angle member.

FIG. 10 is a sectional view showing a mounting unit according to a third embodiment of the present invention.

FIG. 11 is a bottom view showing a state where the attachment unit is attached to the angle member.

FIG. 12 is a side view showing a state where the attachment unit is attached to the angle member.

FIG. 13 is a sectional view showing a mounting unit according to a fourth embodiment of the present invention;

FIG. 14 is a bottom view showing a state where the attachment unit is attached to the angle member.

FIG. 15 is a sectional view showing a mounting unit according to a fifth embodiment of the present invention.

FIG. 16 is a bottom view showing a state where the attachment unit is attached to the angle member.

FIG. 17 is a sectional view showing a mounting unit according to a sixth embodiment of the invention.

FIG. 18 is a partial cross-sectional view showing a state in which a second metal fitting of the mounting unit according to the seventh embodiment of the present invention is hooked on a horizontal rib of an angle member.

FIG. 19 is a plan view showing a state in which the second metal fitting of the mounting unit is hooked on a horizontal rib of the angle member.

FIG. 20 is a partial cross-sectional view showing a state where the mounting unit is slid in the direction of the horizontal rib.

FIG. 21 is a plan view showing a state where the mounting unit is slid in the direction of the horizontal rib.

FIG. 22 is a partial cross-sectional view showing a state where a second metal fitting of the mounting unit is hooked on a horizontal rib of an angle member according to an eighth embodiment of the present invention.

FIG. 23 is an exploded perspective view showing a conventional lightning arrester attachment unit.

FIG. 24 is a cross-sectional view showing a state in which a conventional lightning arrester mounting unit is mounted on a support arm of a tower.

FIG. 25 is a sectional view showing a state in which another conventional lightning arrester mounting unit is mounted on a support arm of a steel tower.

[Explanation of symbols]

2 ... Support arm, 10 ... Mounting unit, 11 ... Substrate, 1
2 ... Angle material, 12a ... Horizontal rib, 12b ... Vertical rib, 13 ... First bracket as mounting bracket, 13a ... Coupling section, 14 ... Linear section, 15 ... Hook section, 16 ... Sloped section, 1
7 ... long hole, 20 ... second metal fitting, 22 ... bolt for fulcrum as spacer, 25 ... bolt for crimping constituting crimping means, 41 ... lightning insulator, 60 ... curved portion as spacer,
Reference numeral 71 denotes a fulcrum bolt as a spacer, 91 denotes a spacer, 101 denotes a spacing bolt as a spacing member,
103: fulcrum bolts as spacers, 109 ... coil springs as spacing members.

Claims (13)

(57) [Claims] 1. A substrate which is arranged on the bottom surface of a horizontal rib of an angle member constituting a support arm of a tower and supports an arrester at one end, and a vertical rib of the angle member which is provided at the other end of the substrate A first metal fitting fixed to an upper end of the horizontal rib, and a second metal fitting provided substantially at an intermediate portion of the substrate and engaged with the upper end surface of the horizontal rib. A spacer provided between the end of the second metal fitting on the side opposite to the engagement side, the substrate, and an end of the spacer and the horizontal rib;
And a crimping means for clamping the fitting of the second fitting to the horizontal rib by fastening the fitting to the substrate. 2. The lightning arrester according to claim 1, wherein a substantially hook-shaped hook is formed at an upper end of the first metal fitting, and the hook is fixed to an upper end of a vertical rib. Mounting unit. 3. The mounting unit for a lightning arrester according to claim 1, wherein said first metal fitting is constituted by a plurality of bolts connected to each other. 4. The mounting unit for a lightning arrester according to claim 3, wherein the plurality of bolts are connected at an upper end thereof, and a hook is formed at the connecting portion. 5. The mounting unit for a lightning arrester according to claim 3, wherein the plurality of bolts are connected via a connecting rod at an intermediate portion. 6. The bolt has a portion that is pressed against the outer surface of the vertical rib between the straight portion or the straight portion and the hook portion, and the edge of the vertical rib is formed on the inner peripheral surface of the hook portion. The lightning arrester according to any one of claims 3 to 5, wherein a slanted portion is formed so as to be pressed into contact with the lightning arrestor, and the pressure contact portion of the engaging portion is different depending on the thickness of the vertical rib. unit. 7. The lightning arrester attachment unit according to claim 3, wherein an elongated hole is formed in the substrate, and a bolt is foldably inserted into the elongated hole. 8. The spacer according to claim 1, wherein the spacer is a bolt screwed to the second metal fitting or the substrate, and its head is interposed between the substrate and the second metal fitting. A mounting unit for the lightning arrester as described. 9. The lightning arrester insulator mounting unit according to claim 1, wherein the spacer is formed integrally with the second metal fitting. 10. The lightning arrester according to claim 1, wherein the spacer is a bolt screwed to the substrate or the second metal fitting , and the tip of the spacer is in contact with the substrate or the second metal fitting. Mounting unit. 11. A space holding member for holding a space between an engaging portion of the second metal fitting and the substrate.
0. A mounting unit for a lightning arrester according to any one of the above items. 12. The mounting unit for a lightning arrester according to claim 11, wherein the spacing member is a member that is deformed as a result of crimping by crimping means. 13. A spacing member, wherein a long hole is formed in a substrate or a second metal fitting, a bolt is inserted into the long hole, and a head of the bolt is positioned between the substrate and the second metal fitting. At the end of the long hole of the substrate or the second metal fitting, a passage portion through which the head of the bolt serving as the space holding member can pass is formed, and the second metal fitting is fixed to the substrate by the bolt constituting the crimping means. The lightning arrester insulator mounting unit according to claim 11, wherein the lightning arrester is fixed to the lightning arrester.