KR101351197B1 - Shock-absorbing Apparatus for Guard Rail - Google Patents

Abstract

The present invention is installed on the longitudinal end of the guard rail to absorb the impact in a number of stages during the collision of the vehicle, guard to improve the safety by minimizing the damage of the vehicle and occupants by the edge (edge) of the end A shock absorbing device for a rail, the shock absorbing device for a guard rail according to the present invention, is fixedly coupled to the ends of the rail plate of the guard rail, bent laterally to cover the end of the rail plate at one end A cover member having a cover portion; Round rails each of which is fixedly coupled to an end of the rail plate to conceal between the ends of the rail plates and deform in a vehicle collision, and thus have a primary shock absorbing effect; Both ends are fixedly coupled to the ends of the rail plates, respectively, and disposed between the end of the rail plates and the round rail includes a buffer plate of the 'W' shape that acts as a secondary shock absorber in a vehicle crash It is characterized by.

Description

Shock Absorber for Guard Rails {Shock-absorbing Apparatus for Guard Rail}

The present invention relates to a guard rail, and more particularly, is installed at the longitudinal end of the guard rail to absorb shocks in various stages during a collision of the vehicle, and damage to the vehicle and the occupant by the edge portion of the end It relates to a shock absorbing device for the guard rail that can improve the safety by minimizing.

In general, guardrails are installed along the center line of a road, ie, along the center yellow line, which limits the driving width of the road. The guardrail strictly distinguishes the paths of vehicles facing each other and suppresses the invasion of lanes opposite to the vehicle. It prevents accidents in advance, or is installed on the edge of roads or bridges to prevent departure of the driving vehicle.

Since the guardrail extends horizontally along the driving direction of the vehicle, when the vehicle collides with the end of the guardrail, the end of the guardrail acts as a sharp blade, digging into the vehicle, causing catastrophic damage to the vehicle and the occupant. There was a case.

Therefore, in order to solve such a problem, a semi-circular round rail is installed at the end of the guard rail to effectively prevent disordered exposure of the internal parts constituting the guard rail to the outside, and at the same time, the round rail is crushed during a vehicle crash. It absorbs shock and improves safety.

However, although the conventional round rail installed at the end of the guardrail can be expected to partially absorb the impact when the vehicle crashes, it is insufficient to resist a desired collision, and the end of the guardrail still has a sharp blade action. As a result, the phenomenon of digging into the vehicle was not sufficiently suppressed. Therefore, the conventional shock absorbing structure, such as the round rail, the situation was to achieve aesthetic purposes rather than shock absorption.

In addition, it was used as an alternative function to prevent accidents, such as installing a buffer structure with a separate waste tire, such as at the junction of roads, but this also damages the city's aesthetics since the facilities are exposed to the road unorderedly. There is a problem.

The present invention is to solve the above problems, an object of the present invention is to be installed at the end of the guardrail to effectively absorb the impact in various stages during the collision of the vehicle, and the edge portion of the end of the guardrail It is to provide a shock absorbing device for the guardrail that can suppress the action of the blade to minimize the damage of the vehicle and the occupant, and significantly improve the safety.

According to an aspect of the present invention for achieving the above object, a plurality of posts are provided at any interval at the center of the road or on the side of the road, and coupled to both sides of the post and extending in parallel along the driving direction of the vehicle In the shock absorbing device for the guard rail is installed at the end of the guard rail having a pair of rail plates to absorb the impact during a vehicle crash, both ends are fixedly coupled to the end of the rail plates to A round rail which conceals between end portions and at the same time deforms in a vehicle collision to perform primary shock absorption; Both ends are fixedly coupled to the ends of the rail plates, respectively, and disposed between the end of the rail plates and the round rail includes a buffer plate of the 'W' shape that acts as a secondary shock absorber in a vehicle crash It provides a shock absorbing device for a guard rail, characterized in that.

According to another aspect of the invention, at the end of the guardrail having a plurality of posts provided at arbitrary intervals at the center of the road or on the side of the road, and a rail plate coupled to both sides of the post and extending along the driving direction of the vehicle In the shock absorbing device for guardrails installed to absorb shocks during a vehicle collision, both ends are fixedly coupled to the end and the post of the rail plate, respectively, concealing between the end and the post of the rail plate A round rail that deforms during impact and acts as a primary shock absorber; Both ends are fixedly coupled to the end and the post of the rail plate, respectively, disposed between the end of the rail plate and the round rail is a buffer plate of the 'W' shape that acts as a secondary shock absorption when the vehicle crashes It provides a shock absorbing device for a guardrail comprising a.

According to another aspect of the invention, the shock absorbing device for guard rails of the present invention is fixed to the end of the rail plate, the cover having a cover portion bent in the lateral direction to cover the end of the rail plate at one end The member may further include.

According to yet another aspect of the present invention, the guardrail shock absorbing device of the present invention is mounted between the mounting plate fixed to the outer surface of the buffer plate, the central portion of the buffer plate and the mount plate elastic force during a vehicle collision It may further include an auxiliary buffer member to provide an additional buffering action.

According to the present invention, when the vehicle collides with the guardrail end, the round rail and the cushioning plate, etc. absorb shocks while causing deformation, which is sequentially crushed or shrunk over several steps with a predetermined time difference. Thus, a very good shock absorption performance can be obtained with a simple configuration and cost.

In addition, when the sharp end of the rail plate is covered by the cover member, the edge of the rail plate is suppressed from performing a sharp blade action and the end of the rail plate is bent inward. Therefore, the end of the rail plate can be minimized to damage the vehicle by digging into the vehicle.

1 is an exploded perspective view showing a shock absorbing device for a guard rail according to an embodiment of the present invention.
FIG. 2 is a perspective view of a coupled state of the shock absorbing device for guard rail of FIG. 1.
3 is a cross-sectional view of the shock absorbing device for guard rail of FIG.
Figure 4 is a cross-sectional view corresponding to Figure 3 showing a shock absorbing device for a guardrail according to another embodiment of the present invention.
FIG. 5 is a cross-sectional view illustrating a shock absorbing device for a guard rail according to another embodiment of the present invention in a view corresponding to FIG. 3.
FIG. 6 is a cross-sectional view illustrating a shock absorbing device for a guardrail according to still another embodiment of the present invention in a view corresponding to FIG. 3.
7 is a plan view schematically showing a state in which the shock absorbing device for guard rails of the present invention is installed on a road.
8 is a cross-sectional view showing a shock absorbing device for a guardrail according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of a shock absorbing device for guard rails according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 show a shock absorbing device for a guardrail according to a first embodiment of the present invention. The guardrail of this embodiment is a guardrail installed at a central part of the road and functioning as a median separator, which is coupled to both sides of the post 1 and posts 1 installed at predetermined intervals along the center of the road. A pair of rail plates 2 extending parallel to each other along the running direction is provided. Coupling members 1a in the form of hollow circular pipes for fixing the rail plates 2 are fixed to both sides of the post 1. The coupling member 1a is a component that is composed of the post 1 and is fixed by fastening means such as bolts on both sides of the upper end of the post 1, but it would be reasonable to regard it as a part of the post 1.

The rail plates 2 are formed of a continuous bent in an 'S' shape along an elongated flat plate. The longitudinal end of the rail plate 2 is formed in a straight line continuous with the other part to have a sharp edge.

1 to 3, the shock absorbing device for guard rails according to the present invention includes a cover member 10 fixedly coupled to an outer surface of an end of each of the rail plates 2, and both ends thereof respectively. A round rail 20 fixedly coupled to an end of the rail plate 2 of the rail plate 2, and a buffer plate having a substantially 'W' shape disposed between the end portions of the rail plates 2 and the round rail 20 ( 30), the mounting plate 40 is fixed to the outer surface of the buffer plate 30, and the auxiliary buffer member 50 is installed between the central portion of the buffer plate 30 and the mount plate 40 Consists of the configuration.

The cover member 10 has a substantially rectangular shape and has a cover portion 11 bent at right angles inward to cover an end portion of the rail plate 2 at an outer end portion thereof. When the cover member 10 has the cover portion 11 as described above, the end of the rail plate 2 by the cover portion 11 is suppressed to act like a blade so that the end of the rail plate 2 The phenomenon of digging into the vehicle can be prevented.

Corresponding portions and lower ends of the cover member 10 are formed to be inclined at a predetermined angle so as to be in contact with each of the upper end and the lower end of the rail plate 2. The cover member 10 is formed with a plurality of bolt fastening holes 12 for fastening the bolt with the rail plate 2.

The cover member 10 is fixed to the outer surface of the rail plate 2 by a fastening means such as a bolt while overlapping with the round rail 20 and the buffer plate 30. When the cover member 10 and the round rail 20 and the buffer plate 30 are overlapped with each other as described above, the assembly work is facilitated and the number of parts can be reduced.

The round rail 20 has a flat plate shape curved in a substantially 'U' shape, and both ends thereof are fixedly coupled to ends of the respective rail plates 2. A plurality of bolt fastening holes 22 for bolting with the rail plate 2 are formed at both ends of the round rail 20. The round rail 20 conceals the space between the ends of the rail plates 2 to prevent the structures between the rail plates 2 from being exposed to the outside, and at the same time, the vehicle deforms in the event of a vehicle collision. It acts as a shock absorber.

Both ends of the buffer plate 30 are fixedly coupled to the ends of the rail plates 2 together with the cover member 10 and the round rail 20. A plurality of bolt fastening holes 32 for bolt fastening with the rail plate 2 are formed at both ends of the buffer plate 30. As described above, the buffer plate 30 is fixed to the rail plate 2 while overlapping with the cover member 10 and the round rail 20, and the bolt fastening hole 32 of the buffer plate 30 is fixed. The bolt fastening hole 22 of the round rail 20 and the bolt fastening hole 12 of the cover member 10 are formed at positions corresponding to each other.

The buffer plate 30 has a substantially 'W' shape when viewed from above, and is disposed between the end portions of the rail plates 2 and the round rails 20 so as to absorb a secondary impact during a vehicle collision. Will be Here, the inner side of the central portion of the buffer plate 30 is preferably installed in contact with the outer surface of the post (1).

The mount plate 40 is coupled to the outer surface of the buffer plate 30 by fastening means such as bolts. In this embodiment, the mount plate 40 has a flat surface in the center portion, but as shown in FIG. 4, the mount plate 40 may be made of an arc-shaped plate with convexly curved outwards. When the mount plate 40 is formed of an arc-shaped plate as described above, it is possible to obtain an advantage that the shock absorbing effect of the mount plate 40 can be increased in the event of a vehicle crash.

The auxiliary buffer member 50 is installed in the space between the central portion of the buffer plate 30 and the mount plate 40 to provide a third cushioning action while providing an elastic force during a vehicle collision. In this embodiment, the auxiliary shock absorbing member 50 is formed in the form of a multi-stage bent plate in the 'S' shape, and the shock absorbing action by applying an elastic force while shrinking and deforming during a vehicle crash. The auxiliary buffer member 50 is coupled to the outer end is fixed to the mount plate 40 by a fastening means such as a bolt.

In order to double the buffering effect by the auxiliary buffer member 50, a hollow rectangular buffer pipe 60 is added between the central portion of the buffer plate 30 and the auxiliary buffer member 50 as shown in FIG. You can also install Since the buffer pipe 60 is made of a hollow tube structure, it can absorb the impact load by deformation.

자 형태를 갖도록 할 수도 있을 것이다. 또한, 도면에 도시하지는 않았으나, 상기 보조완충부재(50)로서 공기가 채워진 쿠션 등을 사용할 수도 있을 것이다. On the other hand, in this embodiment, the auxiliary buffer member 50 is made of a 'S'-shaped winding plate, such as bellows, but can be made in any shape that can absorb the impact load by elastic deformation in addition to. For example, as shown in FIG. 6, the auxiliary buffer member 50 is formed by joining curved middle portions of a pair of arc-shaped plates to each other.

You might have a child. In addition, although not shown in the drawings, as the auxiliary buffer member 50 may be used, such as a cushion filled with air.

The shock absorbing device for guard rails of the present invention configured as described above acts as follows.

As shown in FIG. 7, when the traveling vehicle collides with the end of the guard rail in any direction while the shock absorber of the present invention is installed at the end of the rail plate 2 of the guard rail, the bumper portion of the vehicle is shock absorbed. It will first hit the round rail 20 of the device.

At this time, the round rail 20 is first crushed to absorb the shock, and then the shock absorbing plate 30 and the auxiliary buffer member 50 inside the round rail 20 are sequentially deformed to absorb the shock. do. Therefore, when the vehicle crash, the shock is absorbed several times at a time difference, it is possible to obtain an excellent buffering effect.

At this time, since the sharp end of the rail plate 2 is covered by the cover portion 11 of the cover member 10, the end of the rail plate 2 is suppressed from having a sharp blade action. Thus, the end of the rail plate 2 can minimize the effect of digging into the vehicle and damaging the vehicle.

On the other hand, the shock absorbing device for the guardrail of the above-described embodiment illustrates that a pair of rail plates (2) is applied to the guard rail for the central separator installed side by side in two rows along the road, but as shown in FIG. Likewise, it can be applied in a similar manner to the guard rails in which the rail plates 2 are installed in one row on roadsides or bridges.

That is, as shown in Figure 7, one cover member 10 is fixedly coupled to the end of a single rail plate 2, both ends of the round rail 20 made of 'U' shape each rail plate End of (2) and the post (1), strictly speaking one side of the coupling member (1a) of the post (1) is fixed to the 'W' shaped buffer plate 30 of the secondary shock absorbing action Both ends may be configured to be fixed to the end of the rail plate 2 and the coupling member (1a) of the post (1). In addition, as in the shock absorbing device of the first embodiment described above, the mounting plate 40 is fixed to the outer surface of the buffer plate 30, the secondary buffer between the central portion of the buffer plate 30 and the mount plate 40 Member 50 is installed to provide additional cushioning effect.

As described above, according to the present invention, when the vehicle collides with the guard rail end, the round rail 20, the buffer plate 30, and the auxiliary buffer member 50 are sequentially arranged at various stages with a predetermined time difference. As a result, the shock absorbed while causing the deformation to be crushed or contracted. Thus, a very good shock absorption performance can be obtained with a simple configuration and cost.

In addition, since the sharp end of the rail plate 2 is covered by the cover portion 11 of the cover member 10, the edge of the rail plate 2 is suppressed from the sharp blade action and the rail plate 2 The end of is bent inward. Thus, the end of the rail plate 2 can minimize the effect of digging into the vehicle and damaging the vehicle.

In the above-described embodiment, the rail plate 2 is applied to the guard rail of the structure arranged in two rows side by side on the top of the post 1, or arranged in only one row, the rail plate 2 is a post ( The same or similar applies to the guard rail of the structure arranged in two rows or one row at each of the upper part and the lower part of 1). For example, when the rail plate 2 is installed in two layers, respectively, in two rows at the top and the bottom of the post 1, the shock absorbing device is mounted at the ends of the rail plate 2 at the upper and lower parts as in the above-described embodiments. Although individually installed in each, the shock absorbing device may be installed while connecting the ends of the upper and lower rail plates 2 integrally with each other. That is, both ends of one round rail 20 are simultaneously coupled to the ends of the upper and lower rail plates 2, and both ends of one buffer plate 30 are connected to the ends of the upper and lower rail plates 2. It may be combined at the same time to configure the shock absorber.

Embodiments of the shock absorbing device for guard rails according to the present invention described above are presented for illustrative purposes only to help understanding of the present invention, the present invention is not limited thereto, and those skilled in the art to which the present invention pertains. Various modifications and implementations may be made without departing from the spirit and scope of the technical spirit set forth in the appended claims.

1: Post 2: Rail Plate
10: cover member 11: cover
20: round rail 30: buffer plate
40: mount plate 50: auxiliary buffer member
60: buffer pipe

Claims (10)

It has a plurality of posts (1) are installed at any distance at the center of the road or on the side of the road, and a pair of rail plates (2) coupled to both sides of the post (1) and extending in parallel along the driving direction of the vehicle In the shock absorbing device for the guard rail provided at the end of the guard rail to absorb the impact during a vehicle crash,
Round rails 20 having both ends fixedly coupled to the ends of the respective rail plates 2 to conceal between the ends of the rail plates 2 and deform at the time of a vehicle collision, thereby acting as a primary shock absorber;
'W both ends are fixedly coupled to the ends of the rail plates 2, respectively, and disposed between the ends of the rail plates 2 and the round rails 20 to absorb secondary shocks during a vehicle collision. A shock absorbing device for a guardrail, comprising a buffer plate (30) shaped, wherein the inner surface of the central portion of the buffer plate (30) is connected to the post (1). At the end of the guardrail having a plurality of posts (1) which are provided at an arbitrary distance at the center or side of the road, and a rail plate (2) coupled to both sides of the post (1) and extending along the driving direction of the vehicle In the shock absorbing device for guard rails installed to absorb shocks during a vehicle crash,
Both ends are fixedly coupled to the end of the rail plate 2 and the post 1, respectively, to conceal between the end of the rail plate 2 and the post 1 and to deform during a vehicle collision, thereby acting as a primary shock absorber. Round rail 20 and;
Both ends are fixedly coupled to the end of the rail plate (2) and the post (1), respectively, disposed between the end of the rail plate (2) and the round rail (20) to absorb secondary shock when a vehicle crash Shock absorbing device for a guardrail comprising a buffer plate (30) of the 'W' shape, the inner surface of the central portion of the buffer plate 30 is connected to the post (1). delete The cover part (1) according to claim 1 or 2, having a cover portion (11) fixedly coupled to an end of the rail plate (2) and bent laterally so as to cover an end of the rail plate (2) at one end thereof. Shock absorbing device for a guardrail, characterized in that it further comprises a cover member (10). The shock absorber for a guard rail according to claim 4, wherein the cover member (10), the round rail (20), and the buffer plate (30) overlap each other and are coupled to an outer surface of the end of the rail plate (2). Device. According to claim 1 or claim 2, Mounting plate 40 is fixed to the outer surface of the buffer plate 30, and installed between the central portion of the buffer plate 30 and the mount plate 40 to collide with the vehicle The shock absorbing device for a guardrail, characterized in that it further comprises an auxiliary buffer member (50) that provides an additional buffering action while providing an elastic force. [7] The shock absorbing device of claim 6, wherein the auxiliary buffer member 50 is formed by bending a flat plate in an 'S' shape. The shock absorbing device of claim 6, wherein the auxiliary buffer member (50) is formed by joining curved middle portions of a pair of arc-shaped plates to each other. The shock absorbing device of claim 6, wherein the mount plate (40) comprises an arc-shaped plate that is convexly curved outward. The shock absorbing device of claim 6, further comprising a hollow buffer pipe (60) installed between the central portion of the buffer plate (30) and the auxiliary buffer member (50).

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