KR101010003B1 - apparatus for preventing vehicles from breaking away from road - Google Patents

Abstract

Disclosed is a vehicle road departure prevention structure characterized in that the unit structures having rollers are connected to each other in a chain manner and fixed to an installation unit. In this structure, the roller may be formed by fixing the roller to the upper and lower supports of the unit structure to form a cone or truncated cone so that the narrow portion goes down.

According to the present invention, a plurality of unit structures having rollers may be prepared, and these unit structures may be combined with each other and installed at the center of a road or on a side of the road, or may be combined with an installation. In addition, a reverse slope may be formed to effectively prevent the wheels of the vehicle from leaving the road beyond the side of the roller.

Description

Vehicle for preventing vehicles from breaking away from road}

The present invention relates to a device for preventing road departure of a vehicle, and more particularly to a vehicle road departure prevention device using a roller.

Guard rails were used as a tool to prevent the vehicle from being derailed. Guardrails originally meant additional rails to prevent the train from derailing on railroads, but the term guardrail is also used in vehicle roads as a means of preventing road departures.

Tools to prevent vehicles from deviating from the road or invading the centerline include lane markings, plastic caps, and fixed plastic guide rods that serve as guidelines as a means of simply perceiving a driver without providing physical deterrence. There is a means to give physical deterrent. As a means of providing physical deterrence, a planting tree such as a separating jaw or a wall-type central partition, a guard rail installed on the central partition or a roadside, or a roadside tree is common.

As a means of providing physical deterrence, the existing guardrail or separating jaw is mainly composed of a concrete wall or pile-type pillar and a metal frame such as a steel plate, a metal cable, or a metal bar that connects it. Other problems were likely to occur even if they were difficult to prevent and were strong and robust. That is, in the past, they have little function of absorbing shocks, and the vehicle tends to roll over due to the frictional force in contact with the vehicle during a collision, or to cause an accident by blocking another vehicle.

Therefore, when the vehicle collides with the road departure preventing means having these physical deterrent forces, a means for effectively guiding the direction of the vehicle and reducing impact force and friction is desired. In response to this demand, a structure has been proposed in which a roller is attached to the guard rail to absorb some of the impact as the roller rotates when the vehicle collides with the guard rail and allow the vehicle to slide on the guard rail. Application No. 20-1997-0030942, Republic of Korea Registration 20-0323064)

However, safety devices, such as guard rails employing the rollers proposed in the past, are difficult to actually use because they are more difficult to fix and install in structure than conventional guard rails.

In addition, these structures are made in consideration of the collision with the vehicle body, and in order to fully apply the deterrent force in the collision with the vehicle body, it is necessary to increase the installation height of the roller to prevent the vehicle from crossing the guard rail, but the installation height of the roller In order to increase the height, in order for the frame supporting the roller to sufficiently support the top and bottom of the roller, the installation must be more robust and there is a problem in that the installation cost is high.

The present invention is to improve the problems of the conventional vehicle road departure prevention structure described above, the installation is simpler than the conventional, and provides a vehicle road departure prevention structure that can prevent the road departure of the vehicle more efficiently than its size. It aims to do it.

Vehicle road departure prevention structure of the present invention for achieving the above object is characterized in that the unit structure having a roller is formed by connecting and fixing each other in a chain manner.

In the present invention, the roller may be made by fixing the roller to the upper and lower supports of the unit structure so that the narrow portion of the cone or truncated cone. In this case, the roller may be coupled to the unit structure so as to be rotatable through a rotating shaft protruding up and down, or a hole or a groove in the center of the roller may be inserted into and fixed to the fixed shaft of the upper and lower supports.

When the roller forms a cone or a truncated cone, the angle between the cone side and the central axis of the cone is 15 degrees to 30 degrees, and the angle formed with the ground may be 60 to 75 degrees with a reverse slope.

In the present invention, when the unit structures are connected to each other in a chain manner, the ends of the upper and lower supports for supporting the rollers in the unit structures may be connected to each other by a pin coupling rotatable with each other.

According to the present invention, a plurality of unit structures having rollers may be prepared, and these unit structures may be combined with each other and installed at the center of a road or on a side of the road, or may be combined with an installation. It becomes easy.

In addition, the roller side in the present invention can have a reverse slope can effectively prevent the wheels of the vehicle off the road beyond the side of the roller.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is an installation conceptual diagram illustrating a state in which unit structures having rollers are coupled to each other in a chain manner and installed at a center of a road and a side of a road according to an embodiment of the present invention.

2 is a view showing a unit structure according to an embodiment of the present invention.

3 is a cross-sectional view illustrating a unit structure in which unit structures are coupled to each other and fixed at a corresponding position on a road according to another embodiment of the present invention.

4 and 5 are cross-sectional views schematically showing a state in which the roller of the unit structure is coupled to the upper and lower supports in the embodiments of the present invention.

Figure 6 is a cross-sectional view showing a form in which the roller is installed in a position in which the unit structure is bonded to each other in an embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a connection structure between unit structures that are not fixed to a road installation portion in one embodiment of the present invention. FIG.

Referring to Figure 1, the vehicle road departure prevention apparatus 200 of the present invention is installed on the center separation line and the outer periphery where the curvature is severe on the road. That is, the present invention device 200 is installed on the roadside and the center line of the position where the vehicle can be pushed out due to the sharp curve as in the conventional guardrail.

In this embodiment, the unit structures 20 are connected to each other in a similar form to the chain, which is the power transmission means of the bicycle, to serve as a device for preventing the vehicle from leaving the road as a whole. Unlike the chain of the bicycle, in the present invention, the roller is installed in the unit structure.

The size of the roller may vary slightly, for example, 10 to 15 centimeters in length in the direction of the axis of rotation, 20 centimeters in the wide upper diameter, 10 to 15 centimeters in the narrow lower diameter. The length of such a roller is such that in this embodiment, when the roller collides with the vehicle, the part which contacts the vehicle is mainly a wheel.

Looking at the unit structure 20 in more detail, as shown in Figure 2, if the mounting surface of the installation portion, such as the road surface is horizontal, the rotating shaft is provided with a roller 23 is installed in the vertical direction perpendicular to the installation surface. The roller 23 is rotatably fixed to the center of the rotation shaft to the upper support 21 in the form of a plate, the upper side is formed to one side is arranged in the longitudinal direction of the support. The lower side of the roller 23 is fixedly arranged on the lower support 25 such that the upper side of the roller is fixed and arranged on the upper support, the lower support 25 is formed in the same shape as the upper support 21, the roller 23 is If the upper and lower diameters are the same cylindrical unit structure may be used without distinguishing the upper and lower.

However, in this embodiment, as shown in FIG. 2, the reflecting plate 213 is attached to the upper surface of the upper support 21, and as can be clearly seen in the embodiment of FIG. Has

The roller has an inverted truncated cone so that the side of the roller that comes into contact with the wheel of the vehicle in the event of a collision or contact has a reverse slope with respect to the road surface on which the vehicle is traveling. Even in the case of a guardrail, even if the vehicle collides, even if the longitudinal direction in which the guardrail is installed and the vehicle traveling direction are perpendicular to each other, even if the vehicle does not collide in front, some vertical components exist. In a collision, the guardrail prevents the vehicle from proceeding in this component direction, so that the impact force is generated and the kinetic energy due to the vehicle speed can be momentarily accumulated in the form of elastic energy and move the vehicle in the open direction. . In this case, the open direction may be an upward direction based on the collision point, and thus, the vehicle may be partially lifted upward by being forced to bounce upward by the impact. In this state, when the wheel touches the guardrail, the vehicle can jump over the guardrail by using the force that the vehicle wants to continue and the force that bounces up. However, as shown in the present embodiment, if the roller side is inclined with the installation surface which is usually the road surface, when the apparatus of the present invention collides with the vehicle, even if the front part of the vehicle is bounced upward, the wheel or the body of the vehicle is roller The phenomenon of riding over the device along the side of the can be suppressed. In this case, the reverse slope may be formed at an angle of 15 to 30 degrees on a reference line (an imaginary line in the drawing) in which the conical surface is parallel to the central axis of rotation installed in the vertical direction of the roller 23. If the angle of reverse inclination is too small, it is difficult to act as reverse inclination, and even if the angle of reverse inclination is too large, the corners formed by the upper surface of the roller and the side of the roller become sharp, and it is easy to damage the wheels of the vehicle.

In order to have the side of the roller which comes into contact with the vehicle to have a reverse slope with the road surface on which the vehicle travels, in addition to manufacturing the roller itself in the form of a truncated cone, the roller itself has a cylindrical shape with the same upper and lower diameters, It is also possible to use a method in which the installation surface of the plate constituting the support is inclined with the road surface. In such a case, since the vehicle is generally out of the curve of the road, it is preferable to raise the outside so that the outside of the road curve is higher than the inside of the installation surface so that the installation surface is inclined with the road surface. However, in this case, in the apparatus installed in the center line, if the vehicle invades the center line from the outer lane to the inner line, the reverse slope may not be achieved and the vehicle may be prevented from falling off due to the net inclination. It is preferable to adopt inverted conical or truncated rollers.

In the embodiment as shown in FIG. 1, when the vehicle driver does not accurately recognize the curvature of the road and does not sufficiently reduce the speed of the vehicle and the vehicle tries to deviate out of the curve of the road by inertia, the wheel of the vehicle collides with the roller of the apparatus of the present invention. , Contact. At this time, the roller is applied to the vehicle to move away from the road through the wheel impact force in the opposite direction to the departure to physically prevent the vehicle departure and at the same time to reduce the speed of the vehicle while absorbing some of the impact through the rotation of the roller. In addition, the device of the present invention is faster than the middle of the left and right sides of the vehicle due to the friction at the time of the collision compared to the case without the roller as in the conventional guard rail to prevent the vehicle from rotating, and to slip at the collision site during the collision By doing so, the vehicle continues to collide with the chained rollers until the direction of the vehicle is sufficiently changed in the direction of the road, thereby acting as a guide to reduce the speed and direction of the vehicle.

2, 3, 6 and 7 show an example of the binding form between the unit structures constituting the device of the present invention and the form in which the binding portion of the unit structure is fixed to the installation portion 10 such as a road or a central separator.

In FIG. 2, there are two unit structures, each having three unit structures in FIG. 3 having upside down conical rollers 23 with the larger diameter upwards. Both the upper support 21 and the lower support 25 are formed in a substantially rectangular or elliptical plate shape having a large eccentricity, and holes 211 and 251 are formed at both ends in the longitudinal direction of the plate. Therefore, the two upper structures 21 and the lower support 25 of adjacent unit structures are made to overlap the holes 211 and 251, and the two unit structures are connected by passing through the rivets 31, bolts, and pins.

Some of the binding portions of the two unit structures are riveted as a means for connecting adjacent upper supports 521 and 721 and lower supports 525 and 725 in two adjacent unit structures as shown in the embodiment of FIG. 31) the two unit structures are bound to each other, but this binding unit may not be fixed to the installation part such as a road.

On the other hand, in the binding unit where two adjacent unit structures are bound, as shown in the embodiment of FIG. 3, the upper support 21 is bound through the rivet 31, and the lower support 25 is fixed to the mounting unit together. It may be coupled with the adjacent lower support through the fixing bolt 33 to serve.

6 is a cross-sectional view showing a binding portion of another two adjacent unit structures. In this embodiment, the two upper supports 421 and 521 and the two lower supports 425 and 525 are both penetrated by one fixing bolt 35 and bound to each other at the binding portion. The fastening bolt 35 not only binds the two unit structures together, but also secures this binding unit together with the lower mounting portion and also penetrates the roller 623 to rotatably fix the rollers together. The roller thus has a through hole so that the center can be fitted to the fixing bolt 35. A washer or bearing 37 may be interposed between the roller 623 and the lower support 425 in order to prevent the roller from turning against the lower support 425 when the roller rotates.

4 and 5 illustrate a structure in which the rollers 23 and 323 are rotatably fixed to the lower supports 25 and 325 or the upper supports 21 and 321 in the unit structure. The roller 23 may be inserted into and fixed in the grooves of the upper support 21 and the lower support 25 through the portions 231 and 233 protruding from the upper and lower surfaces of the roller as shown in FIG. 4. In contrast, grooves may be formed in the roller 323 as shown in FIG. At this time, the roller receives and fixes the protruding rods 3211 and 3251 installed in the upper support 21 and the lower support 25 in the groove portion, and the protruding rods 3211 and 3251 serve as the rotational central axis, so that the roller 23 , 323 may rotate.

Of course, instead of the protruding rod of FIG. 5, similarly to FIG. 6, a connecting shaft connecting the lower support and the upper support is installed, and the roller is penetrated through the connecting shaft to fix and rotate the roller.

Although not clearly shown in the part where the roller is coupled to the unit structure as shown in Figs. 4, 5 and 6, means such as bearing surface formation for facilitating the rotation of the roller may be used.

The roller is not made of rust like stainless steel and is made of high strength metal, and it has a cushioning effect on the surface, causing friction on contact with the vehicle, so that the roller rotates well and deprives the speed of the vehicle. It may have a coating layer. Such a coating layer may also serve to prevent corrosion and oxidation of the metal.

It is preferable that the upper surface of the upper support includes a reflector 213 or a luminous display panel so that the driver can easily recognize the driving direction at night or in rainy weather. When the car is formed at the center separation line, the vehicle can block the light of the other vehicle. Slag or other milestones may be installed.

The apparatus of the present invention can be easily installed on both curved roads and straight roads. In the case of a guard rail using a conventional roller or the like, a plurality of rollers are installed between the fixed column and the fixed column, so it is difficult to use them in a curved line.In case of fixing the rollers individually to the ground, the location of the fixed part increases accordingly. This will always grow. However, in the present invention, the unit structure having one or more rollers can be easily attached to each other by using a connection pin, etc., and the connected parts can be easily installed by fixing together with a fixing bolt or the like to an installation unit such as a road or a median separator. have. For example, if the road curve is severe, all connections can be secured to the installation. If the road curve is not severe, only one per three unit structures can be secured to the installation. When fastening, it is also possible to differentiate the diameter or depth of the fastening bolt to adjust its rigidity. The binding part between the unit structures may have a gap between the groove and the inner surface of the pin or bolt penetrating the hole so that the angle formed between the unit structures can be easily adjusted according to the curvature of the road. In addition, depending on the installation form of the fixing bolt can be installed deeply and permanently in the foundation concrete, it can be installed relatively easy to remove as well as easy to remove and reinstall as needed.

Therefore, the apparatus of the present invention is a vehicle delivery means that is simpler than a guardrail to prevent an accident on a road temporarily formed among road construction sections, particularly in a section where the degree and direction of the curve is difficult to predict, and the vehicle is separated from the road. It can be physically prevented, and can be easily demolished as needed to be reused at other construction sites.

The device of the present invention is mainly made to be in contact with the wheel portion of the vehicle, and is made relatively low, so that the strength of physically preventing the vehicle departure may be weak compared to the conventional guardrail, so the road has a sharp curve. It is also possible to use the existing guard rails closer to the road than the guard rail in the frequent accident area.

In the present invention, a case in which holes are formed on both sides of the support for the connection of adjacent upper and lower supports is mainly exemplified. It is a matter of course that other coupling means may be used, such as to be fitted into the hole of the upper support or the lower support of the unit structure.

1 is an installation conceptual diagram illustrating a state in which unit structures having rollers are coupled to each other in a chain manner and installed at a center of a road and a side of a road according to an embodiment of the present invention.

2 is a view showing a unit structure according to an embodiment of the present invention.

3 is a cross-sectional view illustrating a unit structure in which unit structures are coupled to each other and fixed at a corresponding position on a road according to another embodiment of the present invention.

4 and 5 are cross-sectional views schematically showing a state in which the roller of the unit structure is coupled to the upper and lower supports in the embodiments of the present invention.

Figure 6 is a cross-sectional view showing a form in which the roller is installed in a position in which the unit structure is bonded to each other in an embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a connection structure between unit structures that are not fixed to a road installation portion in one embodiment of the present invention. FIG.

Claims (7)

A roller having a rotating shaft installed vertically, the upper support having the roller upper side and having at least one end a connecting hole or a groove, and having a lower support having the lower side of the roller and having at least one side a connecting hole or a groove. It has a plurality of unit structures, The unit structure is coupled to each other by using the hole or the groove, is fixed to the installation portion using the hole or groove, The upper support and the lower support in the unit structure has holes in both side ends, In at least one portion of the unit structure in which the unit structures are bound to each other, the two bodies of the upper support and the lower support overlap each other, and the same rigid body penetrates the two overlapping holes. And the upper support and the lower support are rotatably coupled so as to change an angle formed between the unit structures bound. The method of claim 1, The roller is made of a conical or truncated roller having a radius of the upper radius than the radius of the lower side of the roller, characterized in that the side of the roller has a reverse slope with respect to the plane of the installation portion. The method of claim 2, The side surface of the roller is a vehicle road departure prevention device, characterized in that it is installed to form an angle of 15 to 30 degrees with the central axis of rotation of the roller. The method of claim 1, The unit structure is a vehicle road departure prevention device, characterized in that having two or less rollers. delete The method of claim 1, And at least one of the unit structures in which the unit structures are bound to each other, a rigid body passing through the two holes overlapping at least the lower support among the rigid bodies is fixed to the installation unit. The method of claim 1, In at least one of the portions in which the unit structure is bound to each other, the rigid body simultaneously passes through the lower support and the upper support, The vehicle road departure prevention device, characterized in that the roller is penetrated by the rigid body.

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