JP2601769B2 - Lightning arrester method and lightning arrester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightning arrester and a lightning arrester for a concrete building having a flat roof and a flat roof.

[0002]

2. Description of the Related Art In general, a lightning arrester for a building made of steel concrete is generally provided with a lightning rod at a height of a rooftop tower and connected to a lightning copper plate buried underground through a lightning conductor. Since this lightning rod is long and heavy, it requires a sturdy support bracket and a footrest to support it, and its construction is troublesome and costly. In addition, some mining roofs have lightning arresters installed horizontally on the ridge of the roof.In this case, too, strong mounting brackets and legs are used to securely fix the lightning arresters to the peak roof. There is a problem that a table is required, construction is very troublesome, and installation cost is high.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention relates to a steel-framed concrete building having a flat roof made of concrete, and a groove formed on the roof top of the flat roof to avoid concrete expansion and contraction. By providing a lightning arrester over a required length, a lightning arrester can be installed easily and stably without impairing the space used on the upper surface of a flat roof, and a lightning arrester method and a lightning arrester using the lightning arrester as a lightning strike receiving device are provided. The main purpose is to do so.

[0004]

In order to achieve the above object, the present invention takes the following technical measures. That is, the present the invention, the roof is a building concrete building with flat flat roof, the aluminum over the required length of the aluminum lightning arrester in the groove for the concrete expansion and contraction avoidance formed on the roof surface of the flat roof The top surface of the surge arrester made of concrete is on the concrete surface
A lightning arrester method is provided, wherein the aluminum lightning arrester is used as a lightning strike receiver so as to be fitted so as to form a substantially same surface as the surface .

Further, according to the present invention, a concrete building having a flat roof with a flat roof has an aluminum lightning arrester over a required length in a groove for avoiding concrete expansion and contraction formed on the roof of the flat roof. Of the same aluminum surge arrester
So that the upper surface forms almost the same surface as the concrete surface
And a lightning arrester having one end of the lightning arrester connected to a grounded copper plate buried in the ground via a connection terminal and a connection conductor.

[0006]

According to the present invention constructed as described above, when installing an aluminum lightning arrester on a flat roof, the lightning arrester is inserted into a groove formed on the rooftop of the flat roof to avoid the expansion and contraction of concrete. It can be easily and stably installed without using a complicated and strong support bracket as in the past, and can be used to adjust the concrete expansion and contraction formed between the concrete on the flat roof. Since the lightning arrester is inserted into this groove using the pitch embedding groove (joint), the work of machining the groove can be omitted and the lightning arrester does not protrude to the outside. It has a smart appearance and does not impair the space used on the roof roof.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below based on an embodiment shown in the drawings. Reference symbol A denotes a reinforced concrete building having a flat roof 1 with a flat roof, and the top of the flat roof 1, that is, the roof is filled with an oil pitch except for the top to allow concrete expansion and contraction. The formed joint, that is, the groove 2 is formed. In the present invention, this groove 2
An aluminum lightning arrester 3 is laid on the upper part of the groove 2 over the required length by a concrete.
To form a surface almost the same as the
One end is connected to the steel frame 5 of the building via the connection terminal 4 and the lead wire 6. Further, one end of the steel frame 5 is connected to a grounded copper plate (not shown) embedded in the ground.

The lightning arresters 3, 3 fitted in the grooves 2 have, at the corners of the flat roof, a central portion a having a size substantially equal to the outer surface width and height of the square tubes 3 as shown in FIGS. As shown in FIG. 4, an L-shaped aluminum joint 7 having protrusions b, b having widths and heights corresponding to the internal holes of the square tube 3 in two adjacent directions is formed. Then, the end of the square tube 3 is fitted into the protruding portion b and connected and connected via the bolt 8. In the straight line portion, a central portion a as shown in FIG.
The projections b, b are connected to each other by an aluminum joint 9 formed to project in both opposite directions. Also, in the three-way connection portion indicated by reference numeral 10 in FIG. 1, as shown in FIG. 6, the connection is made by a protruding aluminum joint 10 having a protrusion b projecting from the central portion a in three directions, Similarly, in a four-way connection portion indicated by reference numeral 11 in FIG. 1, as shown in FIG. 7, a cross-shaped aluminum joint 11 in which projecting portions b project in four directions from a central portion a in a cross shape, respectively.
Is used to connect and connect the lightning arrester 3. In this way, all the lightning arresters 3 installed on the roof have a piping structure in which they are electrically connected.

If necessary, these joints or a part of the lightning arrestor tube 3 may be fixed to concrete by a suitable fastening means such as an anchor bolt. Further, an appropriate cushioning material such as a rubber sheet may be interposed between the lightning arrester 3 and the groove 2.

In the above-described embodiment, the reinforcing rod 5 in concrete is used as a medium to connect the aluminum surge arrester 3 and the installed copper plate buried in the ground, but, of course, a connecting conductor is separately provided along the building wall. May be provided.

Although the preferred embodiments of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments. For example, as shown in the embodiment, the lightning arrester fitted in the groove is preferably a square pipe sized to fit well in the groove, and can be stably installed in the groove, but instead of this square pipe, A round pipe or a semi-round pipe suitable for the groove width may be used. In addition, the present invention has the above-mentioned constitutional requirements, achieves the object of the present invention, and can be appropriately modified and implemented within the range of achieving the following effects.

[0012]

As described in detail above, in the present invention,
An aluminum lightning arrester is installed on a flat roof, and at the time of installation, a groove is used to prevent concrete expansion and shrinkage formed on the rooftop of the flat roof. This makes it possible to form a lightning strike instead of a lightning rod, so there is no need for a conventional lightning rod that protrudes high above the tower roof, and a complicated and strong support for supporting this lightning rod. easily and stably well can be installed without the need for fitting and supporting device, moreover on lightning arrester is that the groove
Since the surface is fitted so as to form the same surface as the concrete surface , the surge arrester does not protrude to the outside, so the appearance is smart and the use space on the top surface of the flat roof is reduced. There is no loss. In particular, a pitch buried groove (joint) for adjusting concrete expansion and contraction formed between the concrete on the flat roof can be used to fit the lightning arrester into this groove. There is an advantage that the cost can be omitted and the cost can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part showing an example of the arrangement of a lightning arrester.

FIG. 2 is a partially enlarged perspective view of the lightning arrester.

FIG. 3 is a perspective view of a corner joint part.

FIG. 4 is a perspective view showing an example of a corner joint.

FIG. 5 is a perspective view showing an example of a straight joint.

FIG. 6 is a perspective view showing an example of a three-way connection joint.

FIG. 7 is a perspective view showing an example of a four-way connection joint.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flat roof 2 Groove 3 Lightning arrester 4 Connection terminal 5 Steel frame 6 Lead wire

Claims (2)

(57) [Claims] 1. A concrete building having a flat roof with a flat roof, wherein an aluminum lightning arrester is provided over a required length in a groove for preventing concrete expansion and contraction formed on the roof top of the flat roof . The top of the lightning arrester is concrete
To form a surface that is approximately the same as the surface of the
A lightning arrester, wherein the aluminum arrester is used as a lightning strike. 2. A concrete building having a flat roof with a flat roof, wherein an aluminum lightning arrester is formed over a required length in a groove for avoiding concrete expansion and contraction formed on the roof of the flat roof . The top of the lightning arrester is concrete
A lightning arrester fitted into the lightning arrester so as to form substantially the same surface as the heat sink surface, and one end of the lightning arrester connected to a grounded copper plate buried in the ground via a connection terminal and a connection conductor.