JPH0130560Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to an improvement in the mounting fittings for scaffolding bolts provided in metal pipe poles such as steel pipe poles used as utility poles in order to facilitate the lifting and lowering of the metal pipe poles.

Explaining with reference to the drawings, the metal fitting according to the invention basically includes a pair of vertical flanges 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a, 12a,.
2b, and a web 1 having a vertical notch 16 at the center in the width (horizontal) direction that extends from the upper end to the center in the vertical direction and has a width exceeding the diameter of the scaffolding bolt 42.
4, a front protrusion 22 that can be fitted into the vertical notch 16 of the web 14 of the groove-shaped seat 10 is provided at the center, and a portion of the front protrusion 22 is provided on the back surface (rear surface) of the web 14 of the groove-shaped seat 10. A plate-like nut 20 having a scaffolding bolt engagement screw hole 24 extending back and forth through the groove-shaped seat 10 is brought into contact with the front protrusion 22 being locked to the bottom of the vertical notch 16 of the web 14. on the front of the
Holding plate 3 having a scaffolding bolt insertion hole 32 in the center
0 are in contact with each other.

In this tool, the groove-shaped seat 10 is generally integrated with the metal tube column 40 by welding, and the plate-shaped nut 20 is integrated with the metal tube column 40 by welding.
The holding plate 30 is brought to the site where the metal tube column 40 is to be erected in a state where it is separated from the metal tube column 40, and the plate nuts 20 are attached to the front and rear of the groove-shaped seat 10 at the site where the metal tube column 40 is to be erected. While assembling the holding plate 30 in contact with each other as described above, insert the tip of the scaffolding bolt 42 through the scaffolding bolt insertion hole 32 of the holding plate 30,
After the plate nut 20 is screwed into the scaffolding bolt engagement screw hole 24, the retainer nut 44- attached to the scaffolding bolt 42 and the spring washer 4 as necessary.
6- by tightening the scaffolding bolt 4.
It is used for attachment to the metal pipe column 40 of No. 2.

According to the metal fitting according to this invention, the plate-shaped nut 20
Since the front surface of the nut 20 is brought into contact with the back surface of the groove-shaped catch seat 10 and the front protrusion 22 is engaged with the bottom of the vertical notch 16, the plate nut 20 resists the external force acting through the scaffolding bolt 42. Accept with a stable posture.
That is, according to this metal fitting, the scaffolding bolt 42 can be supported in a stable manner.

In addition, the stability of supporting the scaffolding bolt 42 as described above in this metal fitting is due to the structure of the grooved seat 1.
Even if the height of the protrusion from the metal pipe column 40 is kept low, it will not be substantially damaged.
For example, if the height of the groove is formed to be low enough to accommodate the plate nut 20 behind the web 14 as shown in the figure, the metal tube column 40 welded thereon can be transported and stored almost entirely in this groove. Shaped catch 10
In particular, when the metal tube column 40 has a tapered shape, it is possible to carry out the process without being disturbed by the metal tube column 40 by stacking a plurality of metal tube columns 40 to which grooved seats 10 are welded together in a nested manner. , transportation efficiency and storage efficiency can be improved.

Furthermore, since this metal fitting has a simple structure, it is easy not only to manufacture it but also to attach the scaffolding bolt 42 to the metal tube column 40.

In the metal fitting of this invention, the plate-shaped nut 20 constituting the metal fitting can generally have a length equivalent to the length in the longitudinal direction of the groove-shaped seat 10, as shown in the figure, and the holding plate 30 As shown in the figure, the flanges 3 are in contact with the upper and lower end surfaces of the groove-shaped seat 10.
4a, 34b can be formed in a groove shape.

[Brief explanation of the drawing]

The drawings show one embodiment of the metal fitting according to this invention, and FIG. 1 is a partially cutaway front view, FIG. 2 is a partially cutaway plan view, and FIG. 3 is a side sectional view. . 10...Groove catch, 12a, 12b...Vertical flange, 14...Web, 16...Vertical notch, 20
... Plate nut, 22 ... Front projection, 24 ... Scaffolding bolt engagement screw hole, 30 ... Holding plate, 32 ...
Scaffolding bolt insertion hole.

Claims (1)

[Scope of utility model registration request] A pair of vertical flanges spaced apart to be welded to the outer peripheral surface of the metal pipe column, and a vertical notch in the center of the width direction that extends from the top end to the center of the vertical direction and has a width that exceeds the diameter of the scaffolding bolt. On the back side of the web of the groove-shaped catch, the web has a front protrusion in the center that can fit into the vertical notch of the web of the groove-shaped catch, and a scaffolding bolt that extends back and forth through the front protrusion. A plate-shaped nut having an engagement screw hole is brought into contact with the front protrusion being locked to the bottom of the vertical notch of the web, and a scaffold bolt insertion hole is provided in the center of the front surface of the groove-shaped catch. A scaffolding bolt attachment fitting for a metal pipe column, which is made by abutting a retaining plate.