JPS6366988B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the basic structure of a pole for displaying signs such as traffic signs.

When rebuilding traffic signs, which is carried out in response to changes in traffic conditions, it is often necessary to change not only the signs but also the thickness of the poles on which they are posted.

The conventional method of erecting signage poles is, as shown in Figure 1, by digging a hole in the ground and attaching an angle bar A to the bottom end of the pole to prevent it from turning and preventing it from climbing up. Insert pole B, pour concrete C into it, and install pole B.
The area around it was to be solidified and constructed as a foundation.

Therefore, if a pole needs to be replaced as described above, the old pole must first be removed along with its foundation, and then the foundation must be built again in order to erect a new pole, and this series of work is extremely time-consuming. It was complicated, time-consuming, and required a large cost burden.

The present invention was proposed to eliminate the defects of such conventional methods, and makes it possible to freely and easily replace and erect poles of different sizes without removing the already constructed foundation. This is a new basic structure, and an example thereof will be explained below using figures.

As shown in FIG. 2, the present invention is composed of three main parts: a pipe-shaped main body 1, a holding ring 7, and an adjusting ring 10.

That is, a male threaded portion 2 is carved on the outer periphery of the upper end of a pipe-shaped main body 1 whose lower end is closed, and a U-shaped rod groove 4, 4 is formed in the male threaded portion 2 over a non-threaded portion 3. They are placed facing each other.

A rotation prevention protrusion 5 of the main body 1 is provided on the non-threaded portion 3 of the pipe-shaped main body 1, and the rotation prevention protrusion 5 is located in the longitudinal direction of the main body 1.
A flange-like collar 6 for preventing the main body 1 from slipping up is formed on the lower outer periphery of the main body 1 .

Further, a rod holding ring 7 is provided separately from the main body 1, and has a male threaded portion 8 carved inside thereof to be screwed into the male threaded portion 2 of the main body 1, and an upper opening of the rod holding ring 7 is provided. 9 is a separate adjustment ring 1
0 is fitted.

Although the present invention is constructed as described above, parts that require further detailed explanation regarding the structure will be explained in conjunction with the following construction instructions.

First, after digging a hole in the soil and pouring concrete, while the concrete maintains sufficient fluidity, the pipe-shaped body 1 with the adjusting ring 10 and the rod holding ring 7 attached thereto is inserted to prevent the rod grooves 4, 4 from being buried. embedded in concrete.

After the concrete has hardened by supporting the main body 1 or using auxiliary means such as temporary fixing with a piece of board to prevent the main body 1 from sinking or tilting any further, the pole 12 is passed through the adjustment ring 10. and insert it into the main body 1.

The inner bottom of the main body 1 is a pole receiver 11 formed into a tapered shape as shown in FIG. can be supported uniformly.

A horizontal hole 13 is previously drilled through the pole 12 at a position corresponding to the rod grooves 4, 4 of the main body 1, and a rod piece 14 made of round steel is inserted through the rod grooves 4, 4. The rod holding ring 7 is inserted through the horizontal hole 13 of the inserting pole 12.
Tighten the female threaded portion 8 of the presser ring 7 so that the lower end surface 8' of the presser ring 7 rubs the rod piece 14 and presses it downward.

In this case, the axis of the pawl 12 is aligned with the main body 1 by means of the adjustment ring 10 having an inner diameter commensurate with its outer diameter, and the lower end of the pawl 12 is adjusted by the rod piece 14. Since the pole 12 is firmly pressed against the pole receiver 11 of the main body 1, the pole 12 is reliably integrated with the main body 1, and the rod pieces 14 engaged with the rod grooves 4, 4 provide a sufficient countermeasure against rotation. being done.

Furthermore, the main body 1 has measures to prevent rotation and slip-out of the surrounding concrete 15 by means of a protrusion 5 formed in the longitudinal direction of the non-threaded part 3 and a flange-like collar 6, respectively. , this has also been done adequately.

In this way, the pole 12 is attached to the main body 1, the rod holding ring 7, the adjusting ring 10, and the rod piece 14 against the concrete 15 that has been poured into the soil and hardened.
The construction strength of the pole 12 is securely integrated through the concrete, and there is no concern about the practical construction strength of the pole 12 compared to the conventional construction method in which the pole and concrete are directly connected.

Now, when it becomes necessary to rebuild the pole 12 installed in this way with a pole 12 of a different size, first loosen the rod retaining ring 7, then pull out the rod piece 14 and remove the pole 12 from the main body 1.

Next, replace the adjustment ring 10 with one that matches the outer diameter of the newly installed pole 12, fit this into the rod retainer ring 7, and install the new pole 12 in the same manner as described above.

That is, in the present invention, among the three members described above, only the adjustment ring 10 must be replaced with one having an inner diameter suitable for each size of pole, but the other main body 1 and the rod holding ring 7 need not be replaced at all. There was no need to do so, and there was no need to rebuild the foundation from scratch as in the conventional method, making the work of rebuilding the poles much more efficient and significantly reducing the cost burden.

[Brief explanation of drawings]

The drawings relate to the basic structure of the sign pole of the present invention,
Figure 1 is a partially cutaway side view for explaining the conventional pole erection method, Figure 2 is an exploded perspective view of the structure of the present invention, and Figure 3 is a side view for explaining the structure and construction procedure of the present invention. FIG. 3 is a partially cutaway cross-sectional view. A...Angle bar, B...Pole, C...Concrete, 1...Body, 2...Male thread, 3...
...Non-threaded part, 4...Rot groove, 5...Protrusion, 6...
...Brim, 7...Rot retainer ring, 8...Female thread, 8'...Ring bottom end surface, 9...Top opening of ring 7, 10...Adjustment ring, 11...Pole holder, 12...Pole , 13... horizontal hole, 14...
Lot piece, 15... concrete.

Claims (1)

[Scope of Claims] 1 (A) A pole receiver is formed at the closed lower end, and a male threaded portion is carved on the outer periphery of the upper end, and the male threaded portion has opposing rods extending across the lower non-threaded portion. a pipe-shaped body with a groove formed therein and a non-threaded part protruding from a longitudinal projection and a flange-like collar; (B) a female threaded part that is screwed into the male threaded part of the pipe-shaped main body; and (C) an adjustment ring provided to fit into the upper end opening of the retainer ring and to support the pole. structure.