JP2912942B2 - Reinforcement metal fittings for lightning conductors and metal fittings for lightning conductors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rebar connection fitting for connecting a lightning conductor to a reinforcing steel bar buried or buried in a wall or a pillar of a building, and a plurality of lightning conductors. The present invention relates to a lightning conductor collecting metal fitting used for gathering and connecting to a lightning conductor.

[0002]

2. Description of the Related Art Conventionally, at a building site such as a building, a lightning conductor drawn from a lightning rod is embedded in a wall or a pillar (hereinafter simply referred to as a wall) of a building or the like, or near an upper end of a reinforcing reinforcing bar to be embedded. By connecting a lightning conductor connected to a ground plate at a portion near the lower end of the reinforcing bar, that is, on the first floor or underground floor, the reinforcing bar inside the building wall is used as a lightning conductor. Attempts are being made to eliminate lightning conductors on roofs and outside walls of buildings by using them to save lightning conductors and to beautify the appearance of buildings.

However, in order to connect the lightning conductor 3 to the reinforcing steel bar 2 in the building wall, the only general means is to directly braze the reinforcing steel bar 2 to brass. From the viewpoint of ensuring safety
The lightning conductors 3, 3 are brassed to the plurality of reinforcing bars 2, 2, or as another means, for example, as shown in FIG. The connecting iron plate 30 is welded 31 in the horizontal direction, and the connecting iron plate 30 is welded.
The end of the lightning conductor 3 is inserted into a lightning conductor connecting tubular metal fitting 32 which has been welded in advance to an intermediate portion of the cylindrical fitting 3.
A lightning conductor 3 was connected to and fixed to 2 by brazing or the like. One end of the lightning conductor 3 connected to the reinforcing steel bar 2 is connected to an earth copper plate 34 buried underground via an earth box 33. In this way, the lightning current received by the lightning rod (not shown) is discharged into the ground through the reinforcing steel bar 2 in the building wall.

[0004]

In such a conventional method for lightning arrest using a reinforcing bar in a building wall, the lightning conductor 3 is directly connected to the reinforcing bar 2 at the building site. Or the connecting iron plate 30
After welding, it is necessary to brass the lightning conductor 3 to the cylindrical metal fitting 32 of the connecting iron plate 30. Therefore, a connection work of the lightning conductor can be performed only by a skilled technician having welding technology. However, there is a problem that time and labor are required and work efficiency cannot be improved. In addition, welding equipment must be transported to the top floor of the building, and welding work must be performed on scaffolds with poor stability. Was. Furthermore, if the number of lightning conductors 3 connected to the reinforcing steel bar 2 is more than one or many depending on the size of the building, it is necessary to connect the lightning conductors 3 to each other. There is a problem that the mounting work is required, and the number of work is further increased.

The present invention has been made to solve these problems, and does not require a welding technician, does not require any skill, and simply and smoothly connects a lightning conductor to a reinforcing reinforcing bar. The purpose of the present invention is to provide a lightning conductor rebar connecting metal fitting and a lightning conductor collecting metal fitting that can reliably perform high-safety work and can quickly and reliably connect a plurality of lightning conductors. It is.

[0006]

Means for Solving the Problems The structure of the present invention adopted to achieve the object will be described with reference to the reference numerals used in the description of the embodiment. A metal fitting 1 for connecting the lightning conductor 3 to a reinforcing steel bar 2 buried in the reinforcing bar 2, the holding member 5 for contacting the reinforcing steel bar 1 with a part of the outer surface of the reinforcing steel bar 2, A sandwiching member 6 which contacts the other outer surface;
A pivot 4 for pivotally opening and closing the opening and closing freely, and these two members 5,
6 comprises a bolt 7 and a nut 8 for fastening the open / close free end of the holding member 6. The holding members 5 and 6 have reinforcing bar contact portions 5 a and 6 a which contact the reinforcing bar 2 at their respective intermediate portions.
And a pivot fitting portion 5b, 6b fitted to the pivot 4 at one end, and a bolt engaging portion 5c, 6c engaged with the bolt 7 at the other end. Either the holding member 5 or the holding member 6 is integrally formed with a split tube 9 for connecting a lightning conductor having a screw 9a formed on the outer periphery thereof. Screw 1
The tapered nut 10 provided with Oa is screwed, and the inner diameter of the split cylinder 9 is reduced by screwing and fastening the tapered nut 10.

[0007] The lightning conductor collection metal fitting is constituted by a metal fitting 11 for connecting a plurality of lightning protection conductors 3 to each other and concentrating on one lightning protection conductor 3A. 3A, a cylindrical main body 12 into which the 3A is inserted and fitted;
And a plurality of split cylinders 13, 14.
At least the left and right of each nut body outer circumferential surface thereof 22
Are formed on their outer peripheral surfaces with screws 23, 24,..., And each of the split tubes 13, 14,. 21 are screwed into each split cylinder 1 by screwing these taper nuts 20 together.
The structure is such that the inner diameter of 3, 14,... Is reduced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The former reinforcing bar connection fitting 1 connects a lightning conductor 3 connected to a lightning rod to a reinforcing steel bar 2 and connects a lightning conductor 3 connected to a ground plate to the reinforcing steel bar 2. Mainly used in some cases. Further, depending on the form of the building or the like, it is also used when changing the electric path from the reinforcing steel bar 2 connected to the lightning rod to another reinforcing steel bar 2.
The lightning conductor collecting metal fitting 11 of the latter is formed by projecting two split tubes 13 and 14 in two directions on the same plane from the tube main body 12 or by forming three split tubes 13 and 13 in three directions.
14 and 15 can be implemented as protrusions. Three split cylinders 13, 14, and 15 project in these three directions
The formed cylindrical body 12 has a left and right outer peripheral surface.
With a nut body 22 also formed on the lower side
It can be implemented as

An embodiment of the present invention will be described below with reference to the drawings. In a building, department store, or the like, a lightning conductor 3 is connected to a plurality of reinforcing bars 2 in a building wall connected to a lightning rod installed on the roof, and a plurality of the lightning conductors are gathered to form one main lightning conductor. 3A is connected to an earth box, and further connected to a grounded copper plate buried underground from the earth box to discharge lightning current into the ground. As shown in FIGS. 1 and 2, the reinforcing bar connection fitting 1 for connecting the reinforcing reinforcing bar 2 and the lightning conductor 3 is fixed to the reinforcing bar 2 by tightening a nut 7, and connects one end of the lightning conductor 3. . The other end of the lightning conductor 3 connected to the rebar connection fitting 1 is connected to a lightning conductor collecting metal fitting 11. As shown in FIGS. 1, 11, and 12, the lightning conductor collecting metal fitting 11 also connects other lightning conductors in the same manner, and also connects one end of one main lightning conductor 3A connected to an earth box. doing.

As shown in FIGS. 1 to 9, the rebar connection fitting 1 includes a holding member 5 for holding the reinforcing bar 2, a holding member 6 for holding the reinforcing bar, and the holding member 5 and the holding member 6. It comprises a bolt 7 and a nut 8 for tightening a reinforcing bar sandwiched between the pivot 4 holding member 5 and the holding member 6 to be connected, and a taper nut 10 for connecting and pinching the lightning conductor 3 to the holding member 5. The holding member 5 has an arc-shaped reinforcing bar contact portion 5a extending along the outer wall of the reinforcing bar between the inner wall sandwiching the reinforcing bar 2, a pivot fitting portion 5b that supports the holding member 6, and a bolt 7 for the reinforcing bar 2. It is made of a conductive material integrally formed with a bolt engaging portion 5c tightened with a nut 8 and a split tube 9 obtained by cutting a plurality of screws 9a on an outer periphery for inserting and connecting one end of the lightning arrester conducting wire 3 to each other.

The pivot fitting portion 5b of the holding member 5 is shown in FIGS.
As shown in the figure, the left end is formed in a tubular shape at the center and folded, and the bolt fitting portion 5c is formed by cutting out the center of the right end symmetric with the pivot fitting portion 5b. The split cylinder 9 of the holding member 5 is shown in FIG.
As shown in FIG. 7, one end is formed integrally with the outer end of the reinforcing bar contact portion 5a, and the other end is a free end. As shown in FIG. 6, the split grooves 18, 18 of the split cylinder 9 are cut at four places, but may be two places or more. Although the split tube 9 is formed integrally with the holding member 5, it may be formed integrally with the holding member 6.

The holding member 6 includes a reinforcing bar contact portion 6a for holding the reinforcing bar 2, a pivot fitting portion 6b for supporting the holding member, and a bolt engaging portion 6c for fastening the reinforcing bar with bolts 7 and nuts 8. And a conductive material. As shown in FIG. 8, the inside of the reinforcing member contacting portion 6a of the holding member has a mountain shape so that the reinforcing steel can be securely held. As shown in FIG. 9, the pivot fitting portion 6b of the clamping member is divided into upper and lower portions so that the pivot fitting portion 5b of the clamping member enters the center of the left end, and is formed into a cylindrical shape. The inner diameter of the shape is the same as the inner diameter of the cylindrical shape of the pivotal fitting portion 5b of the combined holding member. As shown in FIG. 9, the bolt fitting portion 5c of the holding member has an elongated hole 19 formed at the center on the right side so as to communicate with the cutout portion at the center of the bolt engaging portion 5c of the combined holding member. I have to.

As shown in FIG. 4, the tapered nut 10 has an octagonal outer shape at one end as shown in FIG. 4, and the cylindrical inner wall is provided with an inner screw 10a tapered toward one end of the octagonal shape. ing. When connecting the lightning conductor, the taper nut 10 may be first inserted into the lightning conductor 3 from the octagonal end. Nipping member 5 and nipping member 6
As shown in FIG. 3, the pivot fitting portion 5b of the clamping member is inserted into the center of the pivot fitting portion 6b of the clamping member, and the pivot 4 is inserted from above into the cylinder of the pivot fitting portions 5b, 6b. A cotter pin is inserted into a pin hole at an end protruding from below to be joined.

The reinforcing bar 2 is connected to the reinforcing bar 2 by the reinforcing bar fitting 1 by passing a reinforcing bar between the reinforcing bar contacting portion 5a of the holding member 5 and the reinforcing bar contacting portion 6a of the holding member 6, and connecting the bolts of the holding member. The bolt 7 is inserted into the bolt engaging portion 6 of the holding member from above the joint portion 5c.
c through the long hole 19 and insert the tip of the nut 8
It is completed by tightening. The position of the bolt 7 penetrating through the bolt engaging portion 5c and the bolt engaging portion 6c only moves in the long hole 19 of the bolt engaging portion 6c, and as shown in FIG. Can be tightened in response to

In order to connect the lightning conductor 3 to the reinforcing bar connection fitting 1 fixed to the reinforcing steel, the lightning conductor 3 must be connected to the taper nut 10 in advance from the octagonal end of the taper nut 10.
Is inserted, and the terminal of the lightning arrester wire 3 into which the taper nut 10 is inserted is inserted into the split tube 9 of the holding member 5, and in this state, the taper nut 10 is screwed into the split tube 9. a screw 9a of the outer periphery of the screw 10a and the split cylinder 9 is tightening firmly lightning conductor 3 narrowed the separation grooves 18 of the split tube 9 by screwing.

The lightning conductor collecting metal fitting 11 for collecting a plurality of lightning conductors 3 connected to the reinforcing steel with the reinforcing steel connection metal fitting 1 and leading it to the earth box as one main lightning conductor is shown in FIGS. Thus, the central cylinder body 12
Screw 23 engraved around the cylinder body and divided into multiple parts 1
3, 14 and 15 are integrally formed, and each split cylinder 1
Each taper nut 20 screwed to each of 3, 14, 15
It consists of

The right and left sides of the outer shape and the lower side of the cylindrical body 12 of the lightning conductor collecting bracket 11 are respectively formed in an octagonal nut body 22 , and one end of each of the split tubes 13, 14, 15 is integrated with the cylindrical body. And the other end is a free end. The split groove 28a of each split tube 13, 14, 15 is cut at four places, but may be at two places or more. Taper nut 20
Has an octagonal outer diameter at one end, and a cylindrical inner wall is provided with a screw 21 tapered toward one end of the octagonal shape. When connecting the lightning arrester to the lightning arrester concentrating metal fitting 11, the lightning arrester may be inserted from the octagonal end of the taper nut 20 first.

In order to connect the lightning conductor 3 to the lightning conductor concentrator 11, a taper nut is inserted into each lightning conductor in advance from the octagonal end of the taper nut 20.
Insert the terminal on the side where the taper nut of the lightning conductor is inserted into the split cylinder 1
3 and the tapered nut 20
And securely with the corresponding nut body 22
If strongly screwing, the screw 21 of the tapered nut and split sleeve 13
Narrowing the split groove 28a of the split sleeve and the screw 23 is screwed,
The lightning conductor 3 will be tightly tightened. Similarly, the lightning conductor 3 is sequentially fixed to each split tube, and one of the split tubes may be similarly connected for the main lightning conductor 3A for connecting to the earth box. Fix the main lightning conductor 3A to the split cylinder.
To set the nut, the nut formed on the lower side
You can tighten the taper nut 20 using the
No.

The split tubes 13 and 14 of the lightning conductor collecting bracket 11
15 and the tapered nut 20 screwed to it are completely common to the split tube 9 of the holding metal fitting 5 of the rebar connection metal fitting and the tapered nut 10 screwed to the same, and the cost reduction and work efficiency are made effective by this commonality. be able to. When the number of the lightning conductors 3 is one, the lightning conductors shown in FIG. 12 are used. When the number of the lightning conductors 3 is two or more, a plurality of the lightning conductors shown in FIG. 11 can be used. It has become.

[0020]

As described above, according to the present invention, a tool with one spanner is required for attaching the reinforcing bar connection fitting to the reinforcing bar, and it can be easily fixed only by tightening with the spanner. Also, since the lightning conductor can be securely connected to the rebar connection fittings only by tightening the taper nut with a spanner to the split cylinder into which the terminal of the lightning conductor is inserted. A lightning conductor can be connected, and work can be performed easily and safely without troublesome work. Furthermore, for the lightning conductor connected to the reinforcing bar, insert a terminal into each of the split tubes of the lightning conductor consolidation fitting, and connect the terminals on the outer peripheral surface of the tube main body.
By simply tightening the individual taper nuts with a spanner using the nut bodies formed in the respective directions, it is possible to quickly and reliably connect the plurality of lightning arresters. In addition,
The cylindrical body into which the lightning conductor is inserted and fitted is a cylindrical body, integrated with the split cylinder
Since it is formed as
Because it can be used, there is no need to drill the hole of the split tube
Easy to manufacture, yet reduce the overall length of the bracket
Even if the length of the lightning conductor is too long,
Can that and be Rukoto, lightning conductors gathered gold not bulky in small
Tools can be obtained.

[Brief description of the drawings]

FIG. 1 is a diagram showing a connection state of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a right side view of the rebar connection fitting of the present invention.

FIG. 4 is an exploded perspective view of the rebar connection fitting of the present invention.

FIG. 5 is a perspective view showing a partially assembled state of the rebar connection fitting of the present invention.

FIG. 6 is a bottom view of a holding member of the rebar connection fitting of the present invention.

FIG. 7 is a left side view of a holding member of the rebar connection fitting of the present invention.

FIG. 8 is a bottom view of the holding member of the rebar connection fitting of the present invention.

FIG. 9 is a left side view of a holding member of the rebar connection fitting of the present invention.

FIG. 10 is a plan view showing another embodiment of the reinforcing bar connection fitting of the present invention.

FIG. 11 is an exploded plan view of the lightning conductor collecting metal fitting of the present invention.

FIG. 12 is a plan view showing another embodiment of the lightning conductor bundle of the present invention.

FIG. 13 is a perspective view showing a conventional structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Rebar connection metal fitting 2 ... Reinforcing rebar 3 ... Lightning conductor 3A ... Main lightning conductor 4 ... Axis 5 ... Clamping member 5a ... Rebar contact part 5b ... Axis fitting part 5c ... Bolt engaging part 6 ... Clamping member 6a ... Reinforcing bar contacting part 6b ... Pivot fitting part 6c ... Bolt engaging part 7 ... Bolt 8 ... Nut 9,13,14,15 ... Split cylinder 9a, 23,24,25 ... Split cylinder screw 10,20 ... Taper nut 10a , 21 ... Inner screw of taper nut 11 ... Lightning conductor collecting metal fitting 12 ... Cylinder body 18,28a ... Split groove 19 ... Elongated hole

Claims (3)

(57) [Claims] Reinforcing reinforcing bars embedded in a building wall (2)
Metal fittings (1) for connecting the reinforcing rod (3) to the lightning conductor (3), the reinforcing metal fittings (1) being in contact with a part of the outer surface of the reinforcing steel bar (2); A clamping member (6) for contacting the other outer surface of the reinforcing steel bar (2), and a pivot (4) for pivotally connecting the two members (5) and (6) so as to be able to open and close in a wide and narrow manner.
And a bolt (7) and a nut (8) for fastening the open / close free ends of these members (5) and (6). The holding member (5) and the holding member (6) A reinforcing bar contact portion (5a) that contacts the reinforcing bar (2) at an intermediate portion,
(6a), each of which has pivot fitting portions (5b) and (6b) fitted to the pivot (4) at one end, and a bolt engaged with the bolt (7) at the other end. Engaging portion (5c),
(6c), and these holding members (5)
Alternatively, one of the clamping members (6) has a screw (9
A split tube (9) for connecting a lightning arrester wire formed with a) is integrally formed with the split tube (9), and a tapered nut (10) having a tapered internal thread (10a) is screwed into the split tube (9). And
The split cylinder (9) is screwed together with the tapered nut (10).
Reinforcing metal fittings whose inner diameter is reduced. A plurality of lightning conductors (3) are connected to each other to form a single lightning conductor (3A), and the lightning conductor (11) is a single lightning conductor. A cylindrical main body (12) into which the lightning conductor (3A) is inserted and fitted; and a plurality of split cylinders (13), (14), ... integrally formed from the cylindrical main body (12) in the circumferential direction. The cylinder main body (12) has at least left and right outer peripheral surfaces formed in a nut body (22), respectively, and the split cylinders (13), (1)
4) are formed with screws (23), (24)... On their outer peripheral surfaces, and each of the split cylinders (13), (14). 20) are screwed together, and these taper nuts (20) are
, The inner diameter of each of the split tubes (13), (14)... Is reduced. 3. Three split cylinders (13), (14), and (3) extending in three directions on the same plane from the cylinder main body (12).
(15) is formed so as to protrude, and the cylindrical body (12) has an outer peripheral surface thereof.
The lightning conductor bundle according to claim 2, wherein the left and right sides and the lower side are formed on the nut body (22), respectively .