JP2002371524A - Signpost for safety - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a signpost for safety with excellent safety and workability, easily installed and removed and minimizing damage without being dragged by a wheel or the like even when a passing vehicle contacts or collides with the signpost by accident. SOLUTION: This signpost for safety comprises a plate-like base part 2 and a plate-like marker part 3 formed of an elastic body detachably erected with prescribed fastening force at the base part 2. As a means for applying the prescribed fastening force, there is a combination of a pair of magnets, or a magnet and a ferromagnetic body provided at the contact parts of the base part 2 and marker part 3, or a hook-and-loop fastener fitted to the contact faces of the base part 2 and marker part 3, or fitting between the base part 2 and marker part 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security display device which is arranged and installed on a road surface on a general road or an expressway for the purpose of traffic guidance or danger notification.

[0002]

2. Description of the Related Art In recent years, when performing construction or other work on a general road or an expressway, in order to secure a work area and prevent entry of general vehicles and the like, a synthetic resin or rubber or the like is used. BACKGROUND ART A security indicator called a color cone or a rubber cone in which a plastic material is processed into a hollow substantially conical shape is widely used.

[0003] A conventional security display will be described below. FIG. 5 is an external view showing an example of a conventional security display device. 21 is a display body for security, 21a is a sign section to which a reflector or a luminous body is attached to draw attention to a passing vehicle, 21b is in contact with a road surface at the time of construction,
1 is a foundation for holding the vehicle 1 perpendicular to the road surface.
The security indicator main body 21 is formed in a hollow, substantially conical shape to facilitate stacking, storage, and transportation.
And the base portion 21b are formed in an integral structure. Also,
The base portion 21b is thicker and more rigid than the marker portion 21a in order to lower the center of gravity of the security display device main body 21 and secure stability.

Further, the outer periphery of the base portion 21b is formed in a substantially square shape so that the security display device body 21 does not roll when it falls down.

FIG. 6 is an external view showing an example of a construction in which a conventional security display device is provided with a fall prevention measure. Reference numeral 22 denotes a fall prevention anchor base which is used by fitting to the base portion 21b of the security display device.

However, the configuration of the above-mentioned conventional security display has the following problems.

(1) After installing the security display on the road surface,
If the security indicator falls over due to wind pressure or other causes, or if the location of the security indicator changes significantly,
It hinders passing vehicles.

(2) A sudden change of lane or sudden braking is used in order for a passing vehicle to avoid the traffic, which may cause a secondary accident.

(3) If a passing vehicle collides with a fallen security display or gets caught in a wheel or the like, a serious accident may occur.

(4) There is also a method of arranging a patrol member for detecting and restoring the security display device overturned or misaligned at an early stage and performing patrols. Monitoring personnel must be arranged.

(5) Even if a patrol person is arranged and patrols, if the visibility is poor or the patrol area is wide, such as a curved road,
Discovery is also delayed, especially at night.

(6) Even if the observer finds a fallen security display or a security display that is greatly displaced, the observer must pass through the vehicle to collect them and restore them to their original state. The work must be done between the vehicles, which is extremely dangerous.

(7) In order to make it difficult for the security display to fall down, the anchor base 22 shown in FIG.
There is also a method of installation by fitting to b. In this case, it takes time to install and remove, especially on the road while repeatedly installing and removing security indicators, such as maintenance and inspection work of incidental facilities on expressways. In the case of the work of moving, the workability is remarkably poor.

In order to solve these problems, Japanese Patent Application Laid-Open No.
Japanese Patent No. 42122 discloses a marker that naturally rises even if it falls down. In addition, Japanese Utility Model Laid-Open No. 3-12913 discloses that a rubber cone or the like that has been installed falls down,
An alarm device for notifying by an alarm when the installation posture has changed, and a marker device for notifying the position of a fall with an alarm and a state monitoring system using the same are disclosed in Japanese Patent Application Laid-Open No. Hei 10-18242.

[0015]

However, according to the sign disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 7-42122, if the passing vehicle accidentally comes into contact with or enters the vehicle incorrectly, the sign is displaced. Due to the integral structure, it has the same problems as described above, such as being caught in a vehicle or the like.

Further, the alarm device disclosed in Japanese Utility Model Laid-Open No. Hei 3-12913 and the sign device that issues an alarm disclosed in Japanese Patent Application Laid-Open No. Hei 10-18242 are excellent in that it is not necessary to separately arrange monitoring personnel. However, there is a problem similar to that described above in the case of poor workability and danger in restoration work, and in the case where a passing vehicle collides with a fallen sign device or is caught in a wheel or the like.

Accordingly, the present invention does not require recovery and recovery to the extent that the security display device falls down or is displaced, so that there is no need to take any risks. Even if a passing vehicle accidentally touches or collides with a misaligned security indicator or a properly installed security indicator, it will not be caught in wheels, etc., and damage can be minimized. It is an object of the present invention to provide a security display device that is extremely easy to install and remove, and is excellent in safety and workability.

[0018]

In order to solve this object, a security display device according to the present invention comprises a plate-like base portion and a plate-like member which is detachably mounted on the base portion with a predetermined fixing force. And a sign portion.

In the present invention, in normal handling, the base portion and the sign portion are integrated, and the sign portion does not come off even when a force of the wind level is applied in a state where the vehicle is installed on a road, but the vehicle accidentally hits. When the vehicle receives a large impact, the sign section comes off the base section and the vehicle can pass over it. Further, since the sign portion is plate-shaped, it does not roll in an unexpected direction after the sign portion comes off the base portion. As a result, it is possible to prevent a secondary disaster from occurring for the following vehicle. Also, when the base portion and the sign portion are separated during storage, they are not bulky.

The means for imparting the predetermined fixing force includes: (1) a pair of magnets or a combination of a magnet and a ferromagnetic material provided at a contact portion between the base portion and the sign portion. (2) Fit between the base part and the sign part. (3) A hook-and-loop fastener attached to a contact surface between the base portion and the sign portion. And the like.

[0021] By making the sign portion made of an elastic body, the body and the bumper are not damaged when the vehicle hits.

[0022]

Embodiments of the present invention will be described below. <First Embodiment> FIGS. 1 and 2 show a first embodiment of the present invention. FIG. 1 is an exploded perspective view, and FIG. 2 is a sectional view of a main part. In the drawing, reference numeral 1 denotes a security display device of the first embodiment, which is a plate-like base portion 2 and a sign portion 3 made of a thick synthetic resin.
Consists of

In the first embodiment, a fitting hole 2a is provided at the center of the base 2, and a magnet 2b is fixed to the bottom of the fitting hole 2a. The marking part 3 is made of a soft elastic material such as foamed rubber and has a triangular plate shape. An iron plate 4 is affixed to the bottom of the marker 3 so as to be attracted to the magnet 2b by magnetic force as shown in FIG. The marking portion 3 is provided with a hole 3a for reducing the resistance to wind and forming a pattern. Fluorescent paint is applied to the front and back surfaces of the sign portion 3 so that the vehicle emits fluorescent light at night to make it stand out from a distance.

When using the security indicator 1 of the first embodiment, the lower part of the marker 3 is inserted into the fitting hole 2a of the base 2 and both are fixed by the magnet 2b and the iron plate 4 with a predetermined fixing force. Integrate. The fixing force between the magnet 2b and the iron plate 4 is an attractive force enough to lift the base 2 together when arranging or moving the security display 1 by grasping the upper part of the sign 3, and the vehicle is driven at a constant speed. Marker 3
When it comes into contact with the vehicle, the fixing force is such that it separates.

[0025] As in the conventional case, a large number of security indicators 1 having this configuration are arranged side by side on a construction section on a road or at an accident site. At this time, the sign portion 3 is placed so that the plane side faces the vehicle passing through the road, so that the sign portion 3 stands out from the vehicle.

In the first embodiment, the security display 1
If the security indicator 1 falls over due to wind pressure or some other reason after being installed on the road surface, or if the location of the security indicator 1 changes significantly, it may hinder the passing vehicles, and the vehicle may collide. However, when the vehicle passes over the security indicator 1 without avoiding the security indicator 1, the sign portion 3 separates from the base portion 2 and flies to any place. Since the base part 2 and the sign part 3 are both flat if separated, there is no hindrance for the following vehicle to pass.
There is no urgency to collect the base part 2 and the sign part 3 scattered on the road between the passing vehicles.

As a result of the test, the following numerical values were found to be appropriate as the fixing force between the magnet 2b and the iron plate 4. (1) Approximately 3 kg in total weight equivalent to conventional rubber cones
(2) Marking part Approx. 600 g to 1 kg (3) Base part Approx. 2 kg to 4 kg (4) Test magnet specification: Cap magnet Size: 24 mm x 30 mm x 7 mm (Cap thickness 1.
6 mm) Surface magnetic flux density: 150 mT Attraction force: 11 kg

A test was conducted using the three cap magnets described above. As a result, there was no problem with ease of attachment and detachment and workability. Also, when the separation performance at the time of collision was measured, 10
At a speed of more than km / h, the base 2 and the sign 3 were completely separated, and there was no damage to the vehicle.

<Second Embodiment> FIGS. 3 and 4 show a second embodiment of the present invention. FIG. 3 is an exploded perspective view and FIG.
Is a sectional view of a main part. In the figure, reference numeral 11 denotes a security display according to the second embodiment, which comprises a base part 12 and a sign part 13.

As the material of the base portion 12, synthetic rubber, natural rubber, and recycled rubber from waste are used, and the weight is 2 kg to 4 kg, preferably about 3 kg, as in the first embodiment. The shape is preferably a square plate shape in consideration of the difficulty of rolling and the lack of bulk during storage, but is not limited thereto, and may be an arbitrary shape such as a circle or a polygon.

When viewed from the front, the sign section 13 has an isosceles triangular plate shape that looks the same as a conventional rubber cone. The base member 13a is made of a foamed resin in consideration of giving the elasticity of the mark portion 13 such that the body of the vehicle is not damaged when the vehicle collides, and having such strength that it can be used repeatedly. A reflection sheet 13b that emits fluorescent light is attached to the front and back surfaces of the base member 13a. The foam resin forming the base member 13a can be a PE (polyethylene) foam or a PP (polypropylene) foam.

In one embodiment, PP beads are used as the material of the base member 13a, and the expansion ratio is 5 to 15 times, preferably 15 times, in order to obtain a predetermined elasticity. In the case of foam, the surface of the sheet is subjected to corona discharge treatment to improve the adhesiveness of the reflection sheet 13b,
Printing is easy. In addition to the above-described configuration, a predetermined shape can also be obtained by using a resin or rubber hollow integrally molded product for the sign portion 13 or attaching the foamed resin plate to the surface of a hard core material such as plywood or hard plastic. Those having elasticity and strength can be manufactured.

Returning to FIGS. 3 and 4, a fitting hole 12a is provided at the center of the base portion 12, and a hook-and-loop fastener 12b is fixed to the bottom of the fitting hole 12a. A leg 13c to be attached to the fitting hole 12a is formed at the bottom of the sign portion 13, and a hook-and-loop fastener 13d is attached to a lower portion of the leg 13c so as to be attracted to the hook-and-loop fastener 12b of the base portion 12. I have to.

The marking portion 13 is provided with holes 13e, 13f, and 13g to reduce resistance to wind. The uppermost hole 13e has a function of putting a finger into the hole 13e and placing or carrying the security indicator 11 on a road. The bottom hole 13g is formed in a semicircular shape, and the hook-and-loop fastener 13d of the marker 13 is replaced with the hook-and-loop fastener 12b of the base 12.
At the time of suction, the toe of the shoe is inserted and pressed down with the weight, so that the suction can be surely performed.

When using the security display 11 of the second embodiment, the leg 13c of the marker 13 is inserted into the fitting hole 12a of the base 12, and the hook-and-loop fastener 12 on the side of the base 12 is inserted.
b and the hook-and-loop fastener 13d on the side of the marker 13 are adsorbed.
At this time, the toe of the shoe is inserted into the lower semicircular hole 13g of the marker 13 and the shoe is put on with its weight, so that the hook-and-loop fasteners 12b and 13d are completely attracted to each other.

As in the case of the first embodiment, a large number of security indicators 11 having this configuration are arranged side by side in a construction section on a road or at an accident site. At this time, the sign portion 13 is placed so that the flat side faces the vehicle passing through the road so that the sign portion 13 stands out from the vehicle.

In the second embodiment, the security display 1
If the security indicator 11 falls over due to wind pressure or some other cause after the 1 is installed on the road surface, or if the location of the security indicator 11 changes significantly, it may hinder a passing vehicle, and the vehicle may collide. In some cases, however, the vehicle passes over the security indicator 11 as it is without avoiding, so that the sign 13 is disengaged from the base 12 and flies to any place. Since both the base portion 12 and the sign portion 13 are flat if separated, there is no hindrance for the following vehicle to pass.

In the above embodiment, an example is shown in which the base portion and the marker portion are fixed by the magnetic attraction between the magnet and the iron plate or the attraction between the surface fasteners. Other means may be used as long as the sticking force is within a range where the sign portion does not come off from the base portion under normal handling or wind pressure, and comes off when the vehicle hits.

Although the above embodiment has been described as a security indicator instead of the conventional rubber cone, it can be applied to an arrow guide plate and various road signs. However, one sign unit may be fixed to a plurality of base units and installed on a road.

[0040]

According to the present invention, the following effects can be obtained.

(1) Since the security indicator comprises a plate-shaped base portion and a plate-shaped marker portion which is detachably provided on the base portion with a predetermined fixing force, the security indicator is overturned. If the vehicle hits the vehicle when the vehicle is hit or when the vehicle is displaced or the like, the sign portion is easily detached from the base portion, and a large impact is not applied to the vehicle.

(2) Since both the base part and the sign part are plate-shaped, they do not roll in unexpected directions after the sign part comes off the base part. As a result, it is possible to prevent a secondary disaster from occurring for the following vehicle. Further, when the base part and the sign part are separated during storage, they are not bulky.

(3) Since the base portion and the sign portion are both flat if separated, there is no hindrance to the passage of the following vehicle, and the observer removes the base portion and the sign portion scattered on the road. There is no urgency to work up to the risk of sewing and collecting between passing vehicles.

(4) Even if a passing vehicle accidentally touches or collides with a security display device that has fallen over, a security display device that is displaced, or a security display device that has been properly installed, it may be applied to wheels or the like. It is possible to provide a security display device which can be minimized without being entangled, can be easily installed and removed, and is excellent in safety and workability.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part according to the first embodiment of the present invention.

FIG. 3 is an exploded perspective view showing a second embodiment of the present invention.

FIG. 4 is a sectional view of a main part according to a second embodiment of the present invention.

FIG. 5 is an external view showing an example of a conventional security display device.

FIG. 6 is an external view showing an example of construction in which a conventional security display device is provided with a fall prevention measure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Security indicator (1st Embodiment) 2 Base part 2a Fitting hole 2b Magnet 3 Mark part 3a Hole 4 Iron plate 11 Security indicator (Second Embodiment) 12 Base part 12a Fitting hole 12b Surface fastener 13 Marker Part 13a Base member 13b Reflective sheet 13c Leg 13d Surface fastener 13e to 13g Hole

Continued on the front page (72) Inventor Hisashi Teraoka 3-11-30 Karin-cho, Chuo-ku, Fukuoka City, Fukuoka Prefecture F-term (reference) 2D101 CA11 CB07 DA05 DA06 EA07 FA13 FA33 FA35 FB11 GA22 GA23

Claims (5)

[Claims] 1. A security display device comprising a plate-shaped base portion and a plate-shaped marker portion which is detachably mounted on the base portion with a predetermined fixing force so as to be detachable. 2. The security according to claim 1, wherein the means for applying the predetermined fixing force is a pair of magnets or a combination of a magnet and a ferromagnetic material provided at a contact portion between the base portion and the sign portion. Display device. 3. The security display device according to claim 1, wherein the means for applying the predetermined fixing force is a surface fastener attached to a contact surface between the base portion and the sign portion. 4. The security display device according to claim 1, wherein the means for applying the predetermined fixing force is a fitting between the base portion and the marker portion. 5. The security display device according to claim 1, wherein the marker portion is made of an elastic body.