JP2007231651A - Reproduction cover for road sign post - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide technology for restoring a road sign post quickly and easily without removing it from a road surface when the road sign post is damaged or soiled. <P>SOLUTION: The reproduction cover 2 composed of a white-colored elastic cylindrical body 2a having inside diameter D and fitted slidably into an existing road sign post 1 of outside diameter d is constituted in advance. The reproduction cover 2 is constituted by winding a retroreflection tape 2b around an outer peripheral face of the white-colored elastic cylindrical body 2a and drilling a pin hole 2c on its cylindrical wall. The white-colored elastic cylindrical body 2a of the reproduction cover 2 is externally fitted into a column-like sign body 1a of the worn road sign post 1, the pin hole 2c is aligned with a pin hole 1e, and a connection pin 3 is inserted into them to prevent it from coming off. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cover member that repairs and regenerates a road sign post when it is damaged or soiled.

The appliance indicated by reference numeral 1 in the lower half of FIG. 1 is an example of a road sign post.
The road sign pillar generally has a pedestal 1b attached to the lower end portion of the pillar-shaped sign 1a, and is installed on the road surface by an attaching screw 1c fixed to the pedestal 1b.
Usually, a member having a female screw hole (not shown) is embedded and fixed on the road surface, and the mounting screw is fitted into the female screw hole of the member and fixed by fastening.

The retroreflective tape 1d is wound around the outer periphery of the columnar marker 1a to improve visibility. Specifically, a retroreflective tape having a pressure-sensitive adhesive applied to the back surface is wound and adhered.
The columnar marker 1a is often damaged because it receives a collision with a passing vehicle. However, if this columnar marker is constructed ruggedly, not only the vehicle that has collided will be significantly damaged, but also the driver will be injured.
For this reason, the columnar marker is made of a flexible material (generally polyurethane), and is considered so as to reduce the impact at the time of collision.
JP-A-10-102438 JP-A-9-1000051

Road sign pillars are damaged by the collision of a passing vehicle. Further, visibility is deteriorated due to contamination with exhaust gas or the like.
Road sign pillars play an important role in traffic safety and must be restored when worn out. However, since the economic burden is too great if it is replaced with a new one, road maintainers are partially repairing damaged parts or cleaning contaminated sign surfaces.

A great deal of time and labor is spent on the repair work and cleaning work. Although this cannot increase the cost of maintaining the road, the traffic on the road must be restricted for the construction, which hinders road traffic. In addition, work on the road is dangerous even if traffic is restricted.
In order to shorten the work time on the road, if the road sign pillar is removed from the road surface and repaired, it will be necessary to remove and attach the sign pillar, and it will be necessary to attach an alternative sign pillar during the repair work. Will increase.

  In order to shorten the work time on the road, a road sign pillar improved so that a columnar sign body can be easily attached to and detached from a pedestal is known. However, technical improvements that enable the repair work itself to be performed quickly and easily are still insufficient.

The present invention has been made in view of the circumstances described above, and the object is as follows.
It is an object of the present invention to provide a technique for repairing and regenerating a road sign pillar quickly and easily at a low cost in a state where a damaged or soiled road sign pillar is installed on a road surface.

The basic principle of the present invention created to achieve the above object will be briefly described with reference to FIG. 1 corresponding to one embodiment thereof.
When the road sign pillar 1 depicted in the lower half of the figure is damaged or soiled, a cylindrical regeneration cover 2 prepared in advance is placed on the pillar-shaped sign body 1 a and is prevented from coming off by the connecting pin 3.
Said reproduction | regeneration cover is comprised with the white material which has the elasticity comparable as the existing columnar marker 1a, and the retroreflection tape 2b is wound around it. The visibility of the retroreflective tape stands out because the ground color of the playback cover is white.
The pin hole 1e of the existing road sign post is better if it is provided in advance.

As a specific configuration based on the above-described principle, the regeneration cover for road sign pillars according to the invention of claim 1 (see FIG. 1) is a cover member that repairs and regenerates damage or fouling of the pillar sign body (1a). And
A white cylinder (2a) formed of an elastic material having an inner diameter that is slidably inserted into and removed from the columnar marker, and retroreflective attached to the outer peripheral surface of the white cylinder A tape (2b) and a pin hole (2c) formed in the cylindrical wall of the white cylindrical body are provided.

In addition to the constituent features of the invention of claim 1, the white elastic cylinder (2a) is made of styrene rubber plastic. It is surface-treated with a solvent having a solubility parameter value SP8-10,
The retroreflective tape (2b) is characterized in that after being left to stand for 3 to 15 minutes after the surface treatment, it is adhered to the white elastic cylinder.

When the invention of claim 1 is applied, when an existing road sign pillar is damaged or soiled, it can be quickly and easily repaired by covering with a white elastic cylinder.
Since the retroreflective tape is wound around the white elastic cylinder, it has good visibility, and since the ground color is white, the retroreflective tape is conspicuous and good visibility is obtained.
Since the white elastic cylinder has elasticity, the impact can be mitigated even if it receives a collision of a passing vehicle after being repaired.

When the invention of claim 2 is applied together with the invention of claim 1, the elastic cylinder is formed of styrene rubber plastic (for example, Rheostomer LQR7950N manufactured by Riken Technos Co., Ltd.), so that it has appropriate elasticity and is white. It is easy to construct, has good weather resistance, and is not expensive.
In addition, the retroreflective tape is securely and firmly adhered because the surface is appropriately treated and an appropriate standing time is set.

A road sign pillar 1 drawn in the lower half of FIG. 1 is an instrument described in paragraphs 0002 and 0003 as a conventional example. An example of repairing and regenerating the road sign post when the present invention is applied or damaged will be described below.
Let d be the outer diameter dimension of the pillar-shaped sign 1a of the road sign pillar. A reproduction cover 2 as described below is prepared in advance in accordance with the existing road sign pillar.

The reproduction cover 2 of this example has a white elastic cylinder 2a as a main structural member, and a retroreflective tape 2b is wound around the outer periphery thereof.
The inner diameter D of the white elastic cylinder 2a is set so as to be slidably fitted to the outer diameter d of the columnar marker 1a.

A pin hole 2c is formed at an appropriate location of the white elastic cylinder 2a. The location of the pin holes is not limited, but is preferably a location that is easy for the installer to work (for example, the height of the knee or more and the height of the shoulder or less).
A connecting pin 3 suitable for the pin hole 2c is prepared in advance. Although the structure of the connecting pin is not limited, it is preferable to configure it in the shape of an arrow or a hook as in this embodiment because it is easy to insert and is not easily dropped off. The effective length dimension of the connecting pin is set longer than the wall thickness dimension of the white elastic cylinder 2a.

  The white elastic cylinder 2a of the present embodiment is composed of Rheostomer LQR7950N manufactured by Riken Technos.

According to the study by the present inventors, the above-mentioned Rheostomer LQR7950N manufactured by Riken Technos Co., Ltd. has moderate elasticity as a columnar marker and is strong and excellent in weather resistance. The adhesive affinity for the applied adhesive) is not always sufficient.
Therefore, in this example, an additive having a tendency to improve adhesive affinity was added, and surface treatment was performed with a solvent. As the solvent, those having a SP (solubility parameter) value of 8 to 10 are preferable, and a range of 8.6 to 9.7 is more desirable.
The standing time after application of the solvent is also important, and it is suitably 3 to 10 minutes at around room temperature (18 to 25 ° C.), more preferably 3 to 6 minutes. More than 15 minutes is not preferable.

The regeneration cover 20 and the connecting pin 3 as described above are prepared, and when the existing road sign pillar is worn out or contaminated, the regeneration cover 2 is put on the pillar-shaped sign body 1a. This covering work process is performed almost immediately. Next, the white elastic cylinder 2a is prevented from coming off as will be described later.
That is, the pin hole 2c provided in the white elastic cylinder 2a and the pin hole 1e provided in the columnar marker 1a of the road sign pillar 1 are combined, and the connecting pin 3 is inserted therein.
In this case, since the outer dimension of the columnar marker 1a and the inner diameter of the white elastic cylinder 2a are properly fitted, the play between the two is small and the insertion operation of the connecting pin 3 is easy.
The pin hole 1e of the columnar marker 1a, which is the object to be repaired, is preferably drilled in advance, but even if drilled with a drill during repair work, it does not require much time and labor.

The recycled cover repaired as described above is also damaged and / or fouled again over time.
In order to repair this again, the connecting pin 3 is removed, the worn reproduction cover is removed, the new reproduction cover 2 is put on, and the connecting pin 3 is attached. The connection pin can be easily removed by cutting the connection pin.
In the second and subsequent repairs, the existing columnar marker 1a has already been drilled with the pin holes 1e, so that the work is further facilitated.

1 is a perspective view illustrating one embodiment of the present invention, with one part broken away

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Road sign pillar 1a ... Column-shaped sign 1b ... Base 1c ... Mounting screw 1d ... Retroreflective tape 1e ... Pin hole 2 ... Reproduction cover 2a ... White elastic cylinder 2b ... Retroreflective tape 2c ... Pin hole 3 ... Connection pin

Claims (2)

A regenerative cover that regenerates damage or fouling of a columnar sign,
A white cylinder having an inner diameter that is slidably inserted into and removed from the columnar marker, and a retroreflective tape attached to the outer peripheral surface of the white cylinder, A regeneration cover for road sign pillars, comprising a pin hole drilled in a cylindrical wall of the white cylindrical body. The white cylinder is made of styrene rubber plastic and surface-treated with a solvent having a solubility parameter value SP8-10,
2. The reproduction cover for a road sign pillar according to claim 1, wherein the retroreflective tape is left to stand for 3 to 15 minutes after the surface treatment and then adhered to the white cylinder.

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