JPH0768687B2 - How to repair the sign post - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of repairing a marker column such as a line-of-sight guide (a delineator, a snow pole) for guiding a driver's line-of-sight by clearly indicating a road alignment along a side of a road.

[0002]

2. Description of the Related Art If an existing sign post is damaged, old, or the reflector breaks and it no longer serves as a sign, a new sign post is rebuilt from the concrete foundation and rebuilt. It was FIG. 10 shows an existing marker column (derinator) 1. The lower end of the existing sign post 1 is fixed to the ground by a concrete foundation 2. 3 is a sign.

[0003]

However, in the case of this prior art, since the portion of the concrete foundation 2 of the sign post 1 is redone, floor dug, formwork, concrete pouring,
It required a lot of machinery and manpower such as backfilling.

It takes a lot of time to cure the placed concrete and the construction cost is high. Also, during construction, traffic restrictions must be imposed for a long time,
It caused traffic congestion and was annoying to traffic.

[0005]

According to the method of repairing a marker strut of the present invention, the root of an existing marker pillar is cut by cutting the root of the existing marker pillar at an appropriate height position and expanding the lower end of the added pillar. It is to be connected and fixed to the stanchions remaining in the section.

Further, as one of the concrete connecting and fixing means of the support pillar to be added to the support pillar, a reinforcing pipe to be fitted into the support pillar is provided inside the expanded diameter portion of the lower end of the support pillar, and the reinforcement pipe is fitted to the support pillar. At the same time, there may be mentioned one in which the lower end expanded diameter portion is inserted so as to cover the support pillar, and the additional support pillar provided with a new mark and the support pillar are fixed via a fixing metal fitting.

As another specific means for connecting and fixing the post-supporting column to the support column, a plurality of slit grooves are formed from the lower end surface in the lower-diameter expanded portion of the supplementary supporting column, and the bottom-end expanding diameter is formed in this way. An example is one in which the support pillar is inserted so as to cover the support pillar, and the support pillar provided with a new mark and the support pillar are fixed by a fastener wound around the outer peripheral surface of the lower diameter expanded portion.

[0008]

[Operation] Existing marker columns, which are old or have broken reflectors, can be repaired with a single touch without starting over from the concrete foundation.

[0009]

EXAMPLE The method of repairing a marker strut of the present invention is such that the root of the existing marker strut 1 is at an appropriate height (about 5 to 15c from the ground surface GL).
By cutting it at the position m), it is left as a short support pillar 11, and the short support pillar 11 is connected and fixed to the additional support pillar 5 provided with a new mark. The marker strut 1 and the additional strut 5 are plastic tubes made of ABS, PVC, PE or the like.

The diameter of the additional support column 5 and the diameter of the support column 11 are the same. Therefore, the appropriate length of the lower end portion of the added support column 5 (about 5 to 15 cm from the lower end surface) is expanded to a size that can be fitted into the support column 11. The lower end expanded diameter portion 51 is used as the support post 11
Then, the support column 5 is attached to the support column 11 so as to be fixed thereto. Note that the diameter expanding means is performed by using a sleeve or the like, but it is preferable to manufacture the pillar 5 by expanding the diameter in advance and adding it at the factory.

When the reinforcement pipe 6 is provided in the expanded diameter portion 51 of the lower end of the supplemental support column 5 and the supplemental support column 5 is connected to the support column 11, the reinforcement pipe 6 is fitted into the support column 11. Therefore, when the additional support column 5 is connected to the support column 11, the support column 11 is sandwiched in the gap 52 between the reinforcing pipe 6 and the lower end enlarged diameter portion 51 of the additional support column 5. The reinforcing pipe 6 may be either a plastic pipe or a metal pipe.

The upper end 61 of the reinforcing pipe 6 is inserted up to the non-expanded additional support column 5 and fixed to the additional support column 5 using a plurality of screws 62. The reinforcing pipe 6 is fitted in the support column 11. The center axis of the reinforcement pipe 6 and the support pillar 5 are made the same, and the support pillar 1 is provided between them.
A gap 52 into which 1 is inserted is formed.

The lower end 63 of the reinforcing pipe 6 is added to support the pillar 5.
Of the lower end surface 53 of each of the above. The length of this protruding portion may be substantially the same as the length of the lower end expanded diameter portion 51 formed on the post 5 which is added. Therefore, when the additional support column 5 is connected to the support column 11, the lower end surface 53 of the additional support column 5 is connected.
Is almost in contact with the ground surface GL, and the lower end 6 of the reinforcing pipe 6
3 is fitted in the underground portion of the support pillar 11. Of course, at the same time, the post 11 projecting upward from the ground surface GL is fitted into the above-mentioned gap 52.

Next, a fixing metal fitting used for fixing the additional support column 5 and the support column 11 will be described.

The fixing metal fitting 7 shown in FIG. 1 comprises a support rod 71 arranged along the central axis of the reinforcing pipe 6 and a retaining spring 73 attached to the lower end 72 thereof. Upper end 7 of support rod 71
4 is a reinforcing pipe 6 through a fastening member 75 arranged in a T shape.
Is stuck to. The lower end 72 of the support rod 71 projects downward from the lower end 63 of the reinforcing pipe 6, and the pull-out prevention spring 73 is attached to the projecting end.

The fall prevention spring 73 is made of spring steel,
The spring steel plates are arranged in a cross shape in a plan view, and the intersections thereof are attached to the lower end 72 of the support rod 71. Fall prevention spring 7
The shape of 3 is not limited to that shown here. For example, it may be a disc or a square plate when viewed in a plane. However, the slip-out prevention spring 73 must be formed into a shape having a function of being forcibly fitted into the support post 11 and being replenished to prevent the support post 5 from easily slipping out of the support post 11.

The fixing metal fitting 8 shown in FIGS. 3 and 4 is composed of a telescopic rod which is laterally fixed in the support pillar 11. The structure of the telescopic rod is, for example, a screw rod 81 having a sharp tip, a tension rod 82, and a nut body 83 provided on the tension rod 82.
Consists of. When the nut body 83 is rotated, the screw rod 81
And the tension rod 82 expands and contracts in the directions opposite to each other. Therefore, when the fixing metal fitting 8 is inserted into the support pillar 11 and the nut body 83 is rotated and extended, the fixing metal fitting 8 is fixed.
It is fixed horizontally across the inside.

The reinforcing pipe 6 is formed with two symmetrical hook-shaped locking grooves 64 extending upward from the lower end 63. That is, as shown in FIG. 5, one of the locking grooves 64 is composed of a groove 65, a lateral groove 66, and a stop groove 67 in order from the bottom. Two locking grooves 64 are formed at the lower end of the reinforcing pipe 6 so as to face each other, and are formed symmetrically to each other. When the additional support column 5 is connected to the support column 11, the reinforcing pipe 6 is fitted into the support column 11. At this time, the above-mentioned fixing metal fitting 8 horizontally fixed in the support pillar 11 enters the two engaging grooves 64, 64 formed in the reinforcing pipe 6.

The vertical groove 65, which constitutes the locking groove 64 of the reinforcing pipe 6, is added in accordance with the position of the fixing member 8 to lower the column 5 downward. The fixing metal fitting 8 extends along the vertical groove 65, and the horizontal groove 6
Reach the bend to 6. In this state, the columns are added to rotate the column 5. Then, the fixing metal fitting 8 reaches the inner end of the lateral groove 66, and in this state, when the supporting metal fitting 8 is further added and the pillar 5 is lowered downward, the fixing metal fitting 8 is locked in the inside of the stop groove 67, and the additional metal fitting 5 is inserted through the fixing metal fitting 8. It is fixed to the support pillar 11. In addition, when removing the support column 5 from the support column 11
The reverse operation is recommended.

Another embodiment of the method of repairing the marker column of the present invention will be described with reference to FIGS. 6 and 7.

A plurality of slit grooves 52 are formed in the lower end enlarged diameter portion 51 of the additional support column 5 from the lower end surface. The lower end enlarged diameter portion 51 thus formed is inserted so as to cover the support column 11 and is connected. Fastener 9 wrapped around the outer peripheral surface of the lower diameter expanded portion
By appropriately tightening bolts and nuts, the additional support column 5 provided with a new mark and the support column 11 are fixed.

This embodiment is preferably used when a telescopic snow pole is fitted inside the upper end of the additional support column 5.

Next, a means for cutting the root of the existing marker strut 1 at an appropriate position will be described.

For this cutting, a cutting jig 20 shown in FIGS. 8 and 9 may be used. The cutting jig 20 is composed of a support column 21 and a grip 22, and a saw blade insertion hole 23 is formed horizontally from the tip of the support column 21 toward the grip 22.

The support column 21 is U-shaped when seen in a plan view, and a stopper 24 is formed at the inner rear portion thereof. It is advisable to set the dimension L between the saw blade insertion hole 23 and the lower end of the support column 21 to be equal to the length of the support column 11 left above the ground surface GL.

When the base of the existing marker strut 1 is cut at an appropriate position, the grip holder 22 of the cutting jig 20 is used to fit the strut holder 21 into the marker strut 1. When the grip 22 is pressed by hand and the saw blade is inserted into the saw blade insertion hole 23, the marker strut 1 is cut.

By using this cutting jig 20,
The height positions of the support pillars 11 can be aligned and the cut can be cut horizontally and neatly.

[0028]

According to the method of repairing the marker pillar of the present invention, the marker pillar that needs repair can be replaced with one touch without redoing from the portion of the concrete foundation.

Therefore, it is possible to economically repair the marker pillar in a short time without the need for concrete pouring or curing.

Also, there is no need to regulate traffic during construction, which is a great social advantage.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an embodiment of a method of repairing a marker strut according to the present invention.

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

FIG. 3 is a vertical cross-sectional view showing an embodiment of a method of repairing a marker strut according to the present invention.

FIG. 4 is a sectional view taken along line BB of FIG.

FIG. 5 is a vertical cross-sectional view of a lower end portion of a reinforcing pipe showing a locking groove.

FIG. 6 is a vertical cross-sectional view showing an embodiment of a method of repairing a marker strut according to the present invention.

FIG. 7 is a partially enlarged front view showing the lower end shape of the additional support column of the embodiment shown in FIG.

FIG. 8 is a front view of a cutting jig.

FIG. 9 is a plan view of a cutting jig.

FIG. 10 is a front view showing an example of a marker strut.

[Explanation of signs] 1 Marking pillar 2 Concrete foundation 3 Marking 5 Addition pillar 51 Lower end expanded part 52 Gap 6 Reinforcing pipe 7, 8 Fixing metal fitting 9 Fastening tool 11 Support pillar

Claims (3)

[Claims] 1. A short support pole is formed by cutting the base of an existing marker strut at an appropriate height position, and the lower end enlarged diameter portion of the supplementary strut with the appropriate length of the lower end portion expanded. A method of repairing a marker strut, characterized by inserting the existing marker strut so as to cover the supporting pillar, which is the base of the existing pillar, and fixing the additional pillar having a new marker and the supporting pillar. 2. A reinforcing pipe to be fitted into the support pillar is added to be provided inside the expanded diameter portion at the lower end of the support pillar, the reinforcing pipe is fitted into the support pillar and is inserted so as to cover the expanded support portion at the lower end,
The method of repairing a marker strut according to claim 1, wherein the support pillar having a new marker and the support pillar are fixed to each other via a fixing member. 3. A plurality of slit grooves are formed from the lower end surface in the lower expanded diameter portion of the additional support column, and the lower expanded diameter portion thus formed is inserted so as to cover the support column, and the outer peripheral surface of the lower expanded diameter portion is formed. The method for repairing a marker strut according to claim 1, wherein the support pillar having a new marker and the support pillar are fixed by a fastener wound around the marker pillar.