JPH118092A - Supporting metal fitting for lightning conducting wire in lightning rod - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain rational work and cost reduction by providing a supporting metal fitting having a function which permits easy fitting from the outside without being welded to a coping. SOLUTION: This device consists of a metal fitting body whose top part is formed with an insertion part 1 which permits a lightening conducting wire B to be inserted and retained so as to be attached and detached freely and whose lower surface is formed with a protruding threaded shaft 2, and a cylindrical nut member 4 provided with a threaded hole 4a which accommodates the threaded shaft 2 and a large-diameter flange 4b which is formed at the outer periphery of a top end. The nut member 4 is constituted of deformable material such as aluminum, and is formed so as to be fixed on the internal edge part of a mounting hole 8 formed at a coping 7 by inserting into the mounting hole 8 from the above and expanding the flesh of a shell part on the hole lower surface side with a tool.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support fitting for supporting a lightning conductor connected from a lightning rod to a grounded copper plate buried in the ground to a fixed wall surface such as a rooftop wall of a building.

[0002]

2. Description of the Related Art Generally, a lightning conductor connected from a lightning rod grounded on the roof of a building to a grounded copper plate buried in the ground is:
It is supported by a support bracket at an appropriate distance from the rooftop wall of the building. This conventional support bracket is made of aluminum or rust-proof iron protection plate attached to the rooftop wall of the building (usually called a protection parapet or kasagi,
(Hereinafter, this is simply referred to as "kasagi"). It is fixed by welding (brazing) or, before attaching the kasagi, a nut is placed on the back surface of the mounting hole provided on the kasagi to screw the bolt of the support bracket. After stopping, the Kasagi was fixed to the fixed wall.

[0003]

However, in the former method using brazing, the work is troublesome and requires a skilled technique, and it is practically difficult to replace the metal fittings. With the means, there was a problem that the work was very troublesome because the Kasagi had to be removed once.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a support fitting having a function that can be easily attached from the outside without welding to a coping, so that the main object is to streamline work and reduce costs. It is assumed that.

[0005]

In order to achieve the above object, the present invention takes the following technical measures. That is, in the metal fitting for supporting a lightning conductor according to the present invention, a metal fitting main body 3 provided with an insertion portion 1 for detachably inserting and holding the lightning conductor B at the upper part and having a screw shaft 2 protruding from the lower surface, and the screw shaft 2 The receiving screw hole 4a and the large diameter flange 4b on the outer periphery of the upper end
And a cylindrical nut member 4 provided with

When the lightning conductor B inserted into the insertion part 1 has a circular cross section, the insertion part 1 is formed of a cylindrical body suitable for inserting and supporting the lightning conductor B. For example, one plate material is bent into two so that the bent portion becomes circular, and the parallel mounting pieces 1a, 1a are removably mounted to the convex mounting portion 2a of the metal fitting body 2 with screws and nuts. Lightning conductor B
Has a flat strip shape, a groove 3b into which the lightning conductor B is fitted may be provided on the upper surface of the support bracket, and the upper surface of this groove may be closed by a removable lid 10.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The cylindrical nut member is formed of a deformable material such as aluminum, and is inserted from above into a mounting hole 8 formed in a heddle 7 to attach a body of meat by a tool. By swelling on the lower surface side of the hole, the structure is such that it can be sandwiched and fixed between the upper flange 4b and the swelling portion 4c with respect to the inner edge of the mounting hole.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below based on an embodiment shown in the drawings. FIGS. 1 to 5 show a first embodiment of a support fitting according to the present invention.
A metal fitting body 3 having an insertion portion 1 for detachably inserting and holding the lightning conductor B and having a screw shaft 2 projecting from the lower surface, a screw hole 4a for receiving the screw shaft 2, and a large-diameter flange 4b on the outer periphery of the upper end. And a cylindrical nut member 4. A waterproof packing 11 is arranged on the lower surface of the metal fitting body 3.

In this embodiment, as shown in FIGS. 1 and 2, the insertion portion 1 is formed in a cylindrical body suitable for inserting and supporting a lightning conductor B having a circular cross section. That is, one plate material is bent into two so that the bent portion becomes circular, and the parallel mounting pieces 1a, 1a are connected to the convex mounting portion 3a of the fitting body 3.
Are removably mounted on a screw 5 and a nut 6.

Further, the cylindrical nut member 4 is formed of a deformable relatively soft metal material such as aluminum, and the screw hole 4a of the cylindrical portion has no screw formed near the opening. It is formed in a thin cylindrical shape, and a screw 4d is formed below it. The nut member 4 is inserted from above into a mounting hole 8 formed in the coping 7 as shown in FIG. 4, and the screw shaft 2 or another nut member 13 with a flange is fitted to the screw 4d by a tool. The screw 4d is pulled up by screwing the nut member 4 in a state where the nut member 4 is pressed down, and the thin cylindrical portion 4e below the casket is compressed to apply a pulling pressure. As shown in FIG. Is bulged on the lower surface side of the mounting hole so as to be sandwiched and fixed between the upper flange 4b and the bulging portion 4c with respect to the inner edge of the mounting hole 8.

As shown in FIG. 3, the supporting bracket thus constructed is screwed with a screw shaft 2 for mounting and a nut member 4 so as to fit into a mounting hole 8 of a coping 7 mounted on a rooftop wall A of a building. Attach by the means described above. In this case, the mounting hole 8
Is drilled in the rooftop wall A in advance. As a result, the nut member 4 can be easily attached from the outside without peeling off the capping member 7. By screwing the screw shaft 2 of the metal fitting main body, the support metal fitting can be easily fixed.

FIG. 6 shows an embodiment of the insertion portion 1 in a case where the lightning conductor B to be supported has the form of a flat strip, and the lightning conductor B is fitted on the upper surface of the fitting body 3. Groove 3
The groove 3b is formed so that the upper surface of the groove 3b is closed by a removable lid 10. In this embodiment, a base 12 made of a corrosion-resistant rubber material is provided on the lower surface of the metal fitting body 3.

Although the embodiments which are considered to be representative of the present invention have been described above, the present invention is not necessarily limited to only the structures of the embodiments, but has the structural requirements and achieves the object of the present invention. However, the present invention can be appropriately modified and implemented within a range in which the following effects can be obtained.

[0014]

As described in detail above, in the present invention,
It is possible to easily attach the lightning conductor support bracket from the outside without welding to the shed or peeling off the shed as in the past, thereby streamlining the work, speeding up the operation, and reducing costs. There is a remarkable effect that it can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a support fitting according to the present invention.

FIG. 2 is a partial cross-sectional side view of the metal fitting of FIG. 1;

FIG. 3 is a partial cross-sectional view showing a state in which the support bracket is attached to a coping.

FIG. 4 is a sectional view showing a step of attaching the nut member to the coping.

FIG. 5 is a cross-sectional view showing a state in which the nut member is attached to a cap.

FIG. 6 is a perspective view showing a second embodiment of the support fitting according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insertion part 2 Screw shaft 3 Metal fitting body 4 Nut member 4a Screw hole of nut member 4b Flange of nut member 7 Kasagi 8 Mounting hole

Claims (1)

[Claims] 1. A fitting body (3) having an insertion portion (1) at an upper portion for detachably inserting and holding a lightning conductor (B) and holding a screw shaft (2) at a lower surface; Screw holes (4)
a) and a cylindrical nut member (4) provided with a large-diameter flange (4b) on the outer periphery of the upper end, wherein the nut member (4) is formed of a deformable material such as aluminum, A lightning arrester that has a structure that can be fixed to the inner edge of the mounting hole (8) by inserting the body of the body into the mounting hole (8) Mounting bracket for lightning conductor.