KR20060009462A - An apparatus of absorbing impact energy for a road and bridge - Google Patents

Abstract

The present invention relates to a shock absorbing device for a road protection comprising a vehicle departure preventing member and a shock absorbing member, in a horizontal direction by a fastening means in front of the plurality of struts 10 and the struts 10 which are placed at predetermined intervals. It is characterized in that it comprises a shock absorbing member that is fixed to the at least one vehicle departure prevention member and the vehicle departure prevention member of the predetermined shape installed in a horizontal direction to absorb the impact energy by the external force. By installing a shock absorber for protection on a road or a bridge, the impact absorbing member plastically deforms and absorbs the impact energy during a vehicle crash, thereby alleviating the impact force of the collision vehicle, and impacting a number of vehicle departure preventing members and plastic deformation coefficients. By providing the absorbing member to the post, overturning or climbing of the crash vehicle is prevented.

Vehicle release prevention member, shock absorbing member, plastic deformation coefficient, irregularities, fastening means, bracket shape, rib

Description

Shock absorber for road protection fence {AN APPARATUS OF ABSORBING IMPACT ENERGY FOR A ROAD AND BRIDGE}

1 is a schematic view showing a state in which a shock absorber for a road protection fence according to a first embodiment of the present invention is installed.

Figure 2 is a cross-sectional view taken along line A-A of Figure 1 when the vehicle departure prevention member and the shock absorbing member of the present invention is installed in three stages.

Figure 3 is a cross-sectional view showing the combination of the vehicle departure prevention member and the shock absorbing member according to a second embodiment of the present invention.

Figure 4 is a cross-sectional view showing the combination of the vehicle departure prevention member and the shock absorbing member according to a third embodiment of the present invention.

5 is a cross-sectional view showing the combination of the vehicle departure prevention member and the shock absorbing member according to a fourth embodiment of the present invention.

6A is a cross-sectional view of the vehicle departure preventing member and the shock absorbing member integrally formed according to the fifth embodiment of the present invention;

6B is a cross-sectional view of the vehicle departure preventing member and the shock absorbing member integrally formed according to the sixth embodiment of the present invention;

7 is a cross-sectional view showing that the shock absorbing member according to the present invention is installed on a concrete fence.

8A and 8B are cross-sectional views illustrating effects before and after a vehicle crash of the shock absorbing device in which the vehicle departure preventing member and the shock absorbing member according to the present invention are provided in two stages.

The present invention relates to a shock absorbing device for a road protection fence, and more specifically, installed on the edges of roads, central lines, bridges and bridge railings or underground roadways to minimize impacts when the vehicle crashes, and the vehicle is overturned or The present invention relates to a shock absorbing device for a road protection fence including a vehicle departure preventing member and a shock absorbing member to prevent the ride.

In general, guard rails are installed on the road where the vehicle is driven to minimize impact of the vehicle by absorbing the impact energy due to the collision of the vehicle and at the same time to prevent the accident. The conventional guardrail is a steel plate with a longitudinal uneven portion is fixed to the ground by a holding rod, so that a slight impact can be tolerated to some extent, but when the vehicle rushes at a high speed and hits hard, the steel guard rail is absorbed. can not do. In addition, as the guardrail is damaged by the vehicle crash, the vehicle is inverted and overturned beyond the guardrail, resulting in large-scale accidents such as car accidents and life-saving accidents. In particular, since there are no shock absorbers in the rigid fences installed on the bridge railings, accidents frequently occur when a vehicle is hit by a fence fence or a vehicle falls over a fence or falls under a bridge.

In addition, many vehicles hit the curved wall of the underground road or barrier or the central separator, but there is a problem that can not prevent damage and personal injury of the vehicle because there is no special shock absorber.

The present invention has been made to solve the above problems, by installing a vehicle departure prevention member and a shock absorbing member in the front of a plurality of struts installed at predetermined intervals on the roadside or bridge to absorb impact energy in the event of a vehicle crash accident The purpose is to provide a shock absorbing device to reduce the damage to the vehicle and the accident of the accident.

It is another object of the present invention to provide a shock absorbing device that prevents the vehicle from overturning or climbing by causing rotation to occur so that the rear portion moves downward based on the center of gravity of the vehicle when the vehicle crashes.

An object of the present invention as described above is a plurality of struts installed at predetermined intervals on a roadside or a bridge, and at least one vehicle departure preventing member of a predetermined shape installed in a horizontal direction by a fastening means on the front side of the strut and the vehicle departure prevention described above. It is achieved by the impact protection device for road protection, characterized in that it comprises a shock absorbing member of a predetermined shape fixed to the member in the horizontal direction to absorb the impact energy by external force.

The vehicle departure prevention member of the present invention is characterized in that the cross-section 'c' shape, the end portion of the upper and lower side is a bracket shape having a jaw formed in the longitudinal direction bent outward.                         

The shock absorbing member of the present invention has a hollow pillar shape in which a plurality of irregularities are bent upward and downward symmetrically and an empty space is formed on the inside thereof, and a fastening work hole is formed on the front side, and the rear side is fixedly coupled to the front side of the vehicle departure preventing member. It is characterized by.

In addition, the shock absorbing member of the present invention is characterized in that a plurality of concave-convex bent symmetrically formed up and down, the predetermined width of the upper and lower sides of the bracket shape coupled to overlap to cover the upper and lower side on the outside of the vehicle departure prevention member. do.

In addition, the shock absorbing member of the present invention is a hollow columnar shape symmetrically curved up and down, characterized in that the predetermined width of the upper and lower side is extended so as to overlap the upper and lower side surfaces of the vehicle departure prevention member to overlap.

In addition, the shock absorbing member of the present invention is characterized in that it comprises any one of aluminum, steel, plastic.

In addition, the vehicle departure preventing member and the shock absorbing member included in the shock absorbing device of the present invention is formed integrally, there is a hollow space formed by bending the rectangular hollow portion and the upper and lower sides are partitioned, the extension surface of the rear to the support Characterized in that the fastening hole is formed to be fastened.

In addition, the vehicle departure prevention member and the shock absorbing member included in the shock absorbing device of the present invention is integrally formed, the inside is divided into a hollow hollow rectangular section and a semi-circular hollow portion, the fastening hole to be fastened to the post Characterized in that formed.

In addition, another object of the present invention is to install the vehicle departure preventing member and the shock absorbing member in at least two stages, the plastic deformation coefficient (k ₂ ) of the shock absorbing member installed on the upper end of the plastic deformation coefficient ( k ₁ ) by a shock absorber for greater road protection.

In addition, an object of the present invention is to provide a shock absorbing device for road protection comprising a shock absorbing member that is fixed in the horizontal direction using a long bolt, etc. installed in the concrete security wall installed at a predetermined interval along the road to absorb the impact energy by external force. Is achieved.

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

1 is a schematic view showing a state in which a shock absorbing device for a road protection fence according to a first embodiment of the present invention is installed, and FIG. 2 is a view illustrating a case in which the vehicle departure preventing member and the shock absorbing member of the present invention are installed in three stages. AA cross-sectional view is shown. As shown in Figures 1 and 2, the road protection shock absorbing device has a plurality of struts 10, and a plurality of vehicle departure prevention member 40 and the shock absorbing member in the struts 10 at approximately predetermined intervals 50 is made of a structure spaced apart in the horizontal direction.

The strut 10 is buried and fixed to the curb 20 through the fastening means 70 and the fixing plate 30 in the shape of a cylindrical column that is placed at a predetermined height.

The fixing plate 30 has a rectangular plate shape and firmly secures the support 10 to the curb 20 by the long bolt and the nut 70 as fastening means.

The curbstone 20 is a cement structure having a predetermined height and width, and is installed at the boundary of the sidewalk and the widthwise end of the bridge.

The vehicle departure preventing member 40 has a cross-section 'c' shape, the end portion of the upper and lower sides is formed in a long bracket shape that is bent outwardly to form a jaw in the longitudinal direction. The jaw of the vehicle departure prevention member 40 is fixed to the support by the long bolt and nut 61, the front is coupled by the shock absorbing member 50 and the bolt nut 60. The vehicle departure prevention member 40 is preferably processed by extruding or drawing steel, which is not easily deformed.

Shock absorbing members (50,501, 502, 503) is a long hollow columnar shape in the horizontal direction is formed in the horizontal direction is formed in the symmetrical up and down symmetrical space, the rear is coupled to the front of the vehicle departure prevention member (40). The shock absorbing member according to the present invention is preferably formed of aluminum, steel, plastic or the like which can absorb the impact energy. In addition, the shock absorbing members (50,501, 502, 503) according to the present invention is easily deformed by the irregularities of the upper and lower sides.

The fastening work hole 509 is formed in a predetermined size on the front surface of the shock absorbing members 50, 501, 502 and 503 so that the vehicle departure preventing member 40 and the shock absorbing members 50, 501, 502 and 503 may be coupled by the bolt nut 60.

As shown in FIG. 2, the combined vehicle departure prevention member 40 and the shock absorbing members 501, 502, and 503 may be installed at least two stages in the support 10 at predetermined intervals. At this time, it is preferable that the shock absorbing member 502 or 503 provided at the upper end has a larger plastic deformation coefficient than the shock absorbing member 501 provided at the lower end. Further, the height L ₁ of the first stage of the shock absorbing device is preferably about 450 mm to 500 mm, which is the bumper height of a small vehicle, and the height L ₂ of the second stage is about 700 mm to 800 mm, which is the bumper height of a large vehicle. Is preferred. The three stages of height (L ₃ ) approximately match the height of the large vehicle.

3 is a cross-sectional view showing the combination of the vehicle departure prevention member 41 and the shock absorbing member 52 according to the second embodiment of the present invention. As shown in FIG. 3, the vehicle departure preventing member 41 has fastening holes 413 formed at both jaws, and a length at which upper and lower sides are fixedly coupled by the shock absorbing member 52 and the bolt nut 62. Long bracket shape.

The shock absorbing member 52 is a long bracket shape having irregularities symmetrically formed up and down, and configured so that a predetermined width of the upper and lower side surfaces can be overlapped from the outside on the upper and lower sides of the vehicle departure preventing member. The overlapped portion is joined by the bolt nut 62.

4 is a cross-sectional view showing the combination of the vehicle departure prevention member 41 and the shock absorbing member 54 according to the third embodiment of the present invention. As shown in FIG. 4, the shock absorbing member 54 has a hollow columnar shape in which the shock absorbing member 54 is symmetrically curved up and down and a hollow space 54a is formed therein so that a predetermined width of the upper and lower sides of the impact absorbing member 54 is extended. It is configured to overlap the upper and lower sides to be covered from the outside. The overlapped portion is joined by the bolt nut 62.

5 is a cross-sectional view showing the combination of the vehicle departure prevention member and the shock absorbing member according to the fourth embodiment of the present invention. As shown in FIG. 5, the shock absorbing member 56 has a long hollow columnar shape installed in a horizontal direction in which a plurality of irregularities are formed symmetrically in the vertical direction and an empty space 56a is formed therein. The bolt nut 60 is coupled to the front surface of the release preventing member 40. A fastening hole 569 may be formed on the front surface.

6A is a cross-sectional view of the vehicle departure preventing member and the shock absorbing member integrally formed according to the fifth embodiment of the present invention. As shown in FIG. 6A, the vehicle departure preventing member and the shock absorbing member 58 integrally formed are separately formed with an empty space 58a formed by bending a rectangular hollow portion 58b and upper and lower sides thereof. A fastening hole 583 may be formed on an extended surface of the rear surface to be fastened to the support 10. In addition, the vehicle departure prevention member and the impact absorbing member 58 formed integrally may be formed of aluminum having good elasticity and ductility.

6B is a cross-sectional view of the vehicle departure preventing member and the shock absorbing member integrally formed according to the sixth embodiment of the present invention. As shown in FIG. 6B, a semi-circular hollow portion 98a and at least two ribs 982 having at least two ribs 981 formed therein are formed inside the vehicle departure preventing member and the shock absorbing member 98. The formed rectangular hollow portion 98b may be partitioned. A fastening hole 983 may be formed at the rear side to be fastened to the post. Each of the ribs 981 and 982 has a predetermined thickness, and at least two or more ribs 981 and 982 spaced at predetermined intervals may be integrally formed with the shock absorbing member in parallel to the upper and lower sides.

7 is a cross-sectional view showing that the shock absorbing member 59 according to the present invention is installed on the concrete fence fence 101 on the road. As shown in FIG. 7, the concrete fence fence 101 is a wide width of the bottom surface and a narrow width of the upper surface, which is installed at a predetermined height, and the shock absorbing member 59 is fixedly installed at a predetermined position (L). The flat portion 103 may be formed.

The shock absorbing member 59 has a rectangular pillar shape in which a plurality of irregularities are formed on the upper and lower sides and an empty space 59a is formed therein, and the rear side thereof is slightly extended to both sides to the long bolt 63 on the concrete fence 101. By fixed installation. Even in this case, the shock absorbing member 59 may be installed at least two steps in the concrete fence fence 101 at predetermined intervals.

8A and 8B are cross-sectional views illustrating effects before and after a vehicle crash when the vehicle departure preventing member 40, the first shock absorbing member 561, and the second shock absorbing member 562 according to the present invention are installed in two stages. . As shown, on the curb 20 is installed on the road strut 10 is fixed and installed by the fixing plate 30 and the long bolt and nut 70. On the support 10, the vehicle release preventing member 40 and the shock absorbing members 561 and 562 having the same shape as the shock absorbing apparatus shown in FIG. 5 are spaced apart and fixed in two stages by the long bolt and the nut 61.

The plastic deformation coefficient k ₂ of the second shock absorbing member 562 provided at the upper end is preferably larger than the plastic deformation coefficient k ₁ of the first shock absorbing member 501 provided at the lower end.

It is preferable that the height of the bumper of the small vehicle is approximately 450 mm to 500 mm, which is increased from the degree of the vehicle separation preventing member 40 and the first shock absorbing member 501 installed at the lower end.

Meanwhile, in the present invention, each of the fastening means is shown and described as a bolt nut fastening structure, but may be fastened by riveting, welding, etc. without being limited thereto.

Hereinafter, with reference to Figures 3 to 8 with respect to the shock absorbing device for road protection according to the present invention configured as described above will be described the operation of the embodiment.

3 to 5 show the combination of the vehicle departure preventing member and the shock absorbing member of the shock absorbing device, the impact absorbing member (52, 54, 56) is the impact energy of the bumps on the upper and lower sides when the vehicle crash It absorbs and plastically deforms. Accordingly, due to sufficient deformation of the shock absorbing members 52, 54, 56, the momentum of the crash vehicle is appropriately reduced, thereby reducing the impact force received by the vehicle.

In addition, even when the impact energy due to excessive collision is large, the collision vehicle is prevented from being rolled over or climbed by the vehicle departure preventing members 40 and 41.

6A and 6B illustrate a vehicle departure preventing member and an impact absorbing member that are integrally formed, and as shown in FIG. 6A, in the impact absorbing member portion in which the empty space 58a of the integrated unit 58 is formed during a vehicle crash. The plastic absorbs the impact energy due to the collision of the vehicle and plastic deformation. Thereafter, the rectangular hollow portion 58b of the vehicle departure preventing member portion secondarily absorbs the impact energy due to the vehicle collision. Accordingly, the momentum of the crash vehicle is reduced by the deformation of the integrated shock absorbing member 58, thereby reducing the impact force of the vehicle and preventing the crash vehicle from overturning.

In addition, as shown in Figure 6b, the vehicle absorbs the impact energy according to the vehicle collision primarily in the shock absorbing member portion formed with the semi-circular hollow portion (98a) of the one-piece (98). At this time, the impact force is dispersed by the ribs 981 formed therein, so that a lot of impact energy can be absorbed. Thereafter, the rectangular hollow portion 98b of the vehicle departure preventing member portion secondarily absorbs the impact energy due to the vehicle collision. At this time as well, the ribs 982 formed therein disperse the impact force and increase the barrier efficiency. Accordingly, the momentum of the crash vehicle is sufficiently reduced, so that the impact force of the vehicle is remarkably alleviated and the crash vehicle can be prevented from overturning.

7 shows that the shock absorbing member 59 is installed in the concrete fence fence 101, and the concrete fence itself prevents the vehicle from being separated, so only the shock absorbing member 59 is installed at a predetermined height L. The impact absorbing member 59 of the vehicle crash is deformed plastically by absorbing the impact energy of the bumps and convex shape of the upper and lower sides. Accordingly, due to sufficient deformation of the shock absorbing member 59, the momentum of the crash vehicle is reduced, thereby reducing the impact force received by the vehicle.

8A and 8B illustrate the effects before and after a vehicle collision of the shock absorbing device in which the vehicle departure preventing member 40 and the shock absorbing member 56 shown in FIG. 5 are installed in two stages, and the height L ₁ at the bottom is Match the bumper height of small vehicles (C). Here, the plastic deformation coefficients k ₁ and k _{2 of} the first shock absorbing member 561 and the second shock absorbing member 562 are k ₂ > k ₁ , and thus, the deformation degree (d ₁ , d ₂ ) is d ₁ > d ₂ . As shown in FIG. 8B, when the vehicle C collides with the impact energy, the impact energy has a larger plastic deformation coefficient k ₁ and thus fires a larger first shock absorbing member 561 having a higher deformation degree d ₁ . It is deformed and absorbed by the shock absorber. At this time,

The center of mass of the collision vehicle C, which proceeds with speed, is higher than the bumper height. Therefore, if the bumper portion is ahead of the top of the collision vehicle C due to the deformation of the shock absorbing member, the second half of the vehicle is instantaneously centered on this point. Rotates downward and the movement direction of the center of mass of the crash vehicle C is directed downward, so that the crash vehicle C is not rolled over or climbed. In addition, since the repulsive force direction due to the collision is not parallel to the road to face the ground, it is possible to prevent the secondary accident with the trailing vehicle when the vehicle crashes.

In the above description, the technical idea of the shock absorbing device for road protection including the vehicle departure preventing member and the shock absorbing member has been described together with the accompanying drawings, but this is by way of example only to illustrate the best embodiment of the present invention. It is not.

In addition, it is obvious that any person skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

As described above, according to the road protection shock absorbing device including the vehicle departure prevention member and the shock absorbing member according to the present invention, the impact force of the collision vehicle by absorbing the impact energy when the impact absorbing member plastic deformation of the vehicle crash Will relax. In addition, by installing a plurality of vehicle escape preventing members and shock absorbing members having different plastic deformation coefficients on the posts, it is possible to prevent the vehicle from overturning or climbing, and to prevent secondary accidents with the following vehicles.

Claims (10)

A plurality of struts 10 installed at predetermined intervals along the road; At least one vehicle departure preventing member (40, 41) of a predetermined shape installed in a horizontal direction by a fastening means (61) on the front surface of the support (10); And The shock absorbing device for road protection, characterized in that it comprises a shock absorbing member (50, 52, 54, 56) fixed to the vehicle departure prevention member (40, 41) in a horizontal direction to absorb the impact energy by external force . The method of claim 1, The vehicle departure preventing member (40, 41) has a cross-section '' 'shape, the end portion of the upper and lower side is bent outwards, the shock absorbing device for road protection, characterized in that the jaw formed in the longitudinal direction. The method of claim 1, The shock absorbing members 50 and 56 have a hollow column shape in which a plurality of irregularities are symmetrically formed up and down and a hollow space is formed on the inside thereof, and fastening work holes 509 and 569 are formed on the front side, and the rear side of the vehicle is separated from the vehicle. Road protection shock absorber, characterized in that fixed to the front of the prevention member (40). The method of claim 1, The shock absorbing member 52 has a plurality of concave-convex bent symmetrically formed up and down, and a predetermined width of the upper and lower side brackets are coupled to overlap the upper and lower side surfaces of the vehicle departure prevention member (41) from outside Road protection shock absorber, characterized in that. The method of claim 1, The shock absorbing member 54 is a hollow columnar shape symmetrically curved up and down, and the predetermined width of the upper and lower sides is extended so that the upper and lower side surfaces of the vehicle departure preventing member 41 are overlapped and coupled to each other. Shock absorbing device for road protection. The method according to any one of claims 1 to 5, The shock absorbing member (50, 52, 54, 56) is a shock absorbing device for road protection, characterized in that it comprises any one of aluminum, steel, plastic. The method of claim 1, The vehicle departure preventing member and the shock absorbing member are integrally formed, and the hollow space formed by bending the rectangular hollow portion 58b and the upper and lower sides inside the vehicle release preventing member and the shock absorbing member 58 formed integrally ( 58a) is partitioned, and the shock absorbing device for road protection, characterized in that the fastening hole (583) is formed on the extension surface of the back to be fastened to the support (10). The method of claim 1, The semi-circular hollow portion 98a in which the vehicle departure preventing member and the shock absorbing member are integrally formed, and at least two ribs 981 and 982 are formed in the interior of the vehicle departure preventing member and the shock absorbing member 98. And rectangular hollow portion (98b) is partitioned, the shock absorbing device for road protection, characterized in that the fastening hole (983) is formed on the rear to be fastened to the support. The method of claim 1, When the shock absorbing members 50, 52, 54, 56 are installed in two or more stages, the plastic deformation coefficient k ₂ at the upper end is greater than the plastic deformation coefficient k ₁ at the lower end. Protective shock absorber. A concrete firewall wall 101 installed at predetermined intervals along the road; It includes a shock absorbing member (50, 52, 54, 56, 58, 59, 98) fixed to the horizontal direction by the fastening means (63) on the front surface of the firewall 101 to absorb the impact energy due to external force Road protection shock absorber characterized in that.

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