KR20200123740A - Rolling guard barrier and menufacturing method thereof - Google Patents

Abstract

The present invention relates to a manufacturing method of a rolling guard barrier and a rolling guard barrier and, more specifically, to a manufacturing method of a rolling guard barrier and a rolling guard barrier which can absorb an impact during a vehicle collision and guide a collision vehicle in a forward direction of a road to prevent large accidents. According to the present invention, the manufacturing method of a rolling guard barrier comprises: 1) a step of manufacturing posts; 2) a step of manufacturing a rail plate fastened to the posts; 3) a step of manufacturing rotary rollers of which the centers are penetrated by the posts; 4) a step of installing the posts on the ground at prescribed intervals; 5) a step of coupling the rail plate to lower portions of the front and rear sides of the posts to form lower rails; 6) a step of vertically stacking and mounting two of the rotary rollers to be supported on the pair of lower rails; and 7) a step of coupling the rail plates to upper portions of the front and rear sides of the posts to form upper rails.

Description

Rolling guard barrier and its manufacturing method {ROLLING GUARD BARRIER AND MENUFACTURING METHOD THEREOF}

The present invention relates to a rolling guard barrier and a method of manufacturing the same, and more particularly, a rolling guard barrier capable of preventing a major accident by absorbing an impact during a vehicle collision and guiding a collision vehicle in the traveling direction of the road, and a manufacturing method thereof It is about.

With the development of the automobile industry, the number of automobiles and the size of automobiles are increasing, and the height of automobiles is increasing.

Guide rails are installed in the middle line of the road or to protect people from vehicles between the roadway where vehicles travel and the sidewalks where people come and go.

Guide rails are installed to notify the driver of rapidly changing road conditions such as sharp curves, underpasses, and overpasses. These guide rails are equipped with reflectors that can alert the driver of danger, so that drivers can drive more safely. There have been many studies to induce.

For example, Korean Utility Model Registration No. 20-227076 relates to a guide rail gaze reflective derivative that alerts the driver's perspective to the outside of a driveway, and includes the lid of a post that supports the guide rail and the gaze reflective derivative. It is easy to install and maintain by forming a set of constituent parts, and there is described a gaze-reflective derivative for guide rails that improves driver's visibility well.

In particular, a guard rail for shock absorption has been disclosed that absorbs the shock caused by the collision of the vehicle in the event of a vehicle collision and stops the vehicle or guides it in a normal traveling direction.

For example, Patent Application No. 10-2009-0136281, Utility Model Registration No. 0281819, and Patent No. 1003368 are applicable. A plurality of rotating rollers are provided on the guard rail for shock absorption.

However, since the rotary roller provided in the conventional shock-absorbing guard rail is generally formed integrally by foaming urethane, there is a problem that it is easily damaged by collision.

In addition, when a vehicle crashes, there is a problem that the vehicle rises above the guard rail and falls to the other side.

Patent application No. 10-2009-0136281 Registered Utility Model No. 0281819 Patent No. 1003368

The present invention was conceived to solve the above-described problems, and an object of the present invention is a rolling guard barrier capable of preventing a large-scale accident by absorbing the impact during a vehicle collision and guiding the collision vehicle in the traveling direction of the road, and its manufacture. In providing a way.

Another object of the present invention is to provide a rolling guard barrier capable of easily cleaning the surface of a rotating roller contaminated by dust or vehicle collision, and a method of manufacturing the same.

Another object of the present invention is to provide a rolling guard barrier capable of easily manufacturing a rotary roller equipped with an impact absorbing roller unit, and a method for manufacturing the same.

Another object of the present invention is to provide a rolling guard barrier and a manufacturing method thereof capable of preventing climbing in a vehicle collision.

Another object of the present invention is to provide a rolling guard barrier with reinforced strength and a method of manufacturing the same, and to easily manufacture a post or reinforcing post.

Another object of the present invention is to provide a rolling guard barrier capable of easily fastening a post and a rail plate and a method of manufacturing the same.

In order to solve the above technical problem, the method for manufacturing a rolling guard barrier according to the present invention comprises the steps of: 1) rolling a metal plate to form a cylindrical shape, and manufacturing a post by welding the opposite ends; 2) manufacturing a rail plate fastened to the holding; 3) manufacturing a rotary roller whose center penetrates the support; 4) installing the posts on the ground at predetermined intervals; 5) forming a lower rail by coupling the rail plate to the lower front and rear sides of the post, respectively; 6) mounting the two rotary rollers by stacking them up and down so as to be supported by the pair of lower rails; And 7) forming an upper rail by coupling the rail plates to the upper front and rear sides of the support, respectively.

In addition, in the step 1), at least one strength reinforcing groove is formed in the longitudinal direction on the surface of the support, and the strength reinforcing groove is preferably located above and below the ground.

In addition, the step 3), 3-1) forming a hollow inner casing by rotationally molding the synthetic resin material; 3-2) forming an opening in the casing; 3-3) injecting a mixture for urethane foaming through the opening; 3-4) forming an impact absorbing roller part by foaming the mixture in the casing; And 3-5) removing the foam protruding outward from the opening.

In addition, in the step 4), it is preferable to insert a reinforcing post into the inside of the post.

In addition, it is preferable that the reinforcing post is inserted in a force-fitting manner by the strength reinforcing groove protruding into the inside of the post.

The rolling guard barrier according to the present invention includes at least one longitudinal strength reinforcing groove formed therein, the strength reinforcing groove installed so as to be located above and below the ground, and the inside of which is hollow; A lower rail coupled in the transverse direction to the lower front and rear sides of the post, respectively; An upper rail coupled in a transverse direction to an upper front and a rear side of the post, respectively; And two rotary rollers having a center penetrating through the support and rotatably provided between the lower rail and the upper rail, wherein the rotary roller is formed to have a larger radius toward the lower or upper rail, and the The two rotary rollers are characterized in that they are mounted symmetrically so as to increase their radius toward the lower and upper portions, respectively, from the surfaces in contact with each other.

In addition, a reinforcing post is inserted into the inside of the post, and the reinforcing post is preferably located above and below the ground, respectively.

In addition, it is preferable that the strength reinforcing groove protrudes to the inside of the post to support the reinforcing post.

In addition, the lower rail or the upper rail is preferably formed in the form of a long hole having a predetermined length in the horizontal direction fastening hole fastened with the support.

In addition, it is preferable that a predetermined distance is spaced between the rotating roller and the upper rail.

In addition, it is preferable that the rotating roller includes a shock absorbing roller part made of a foamed urethane material, and a casing formed of a rigid synthetic resin material surrounding the shock absorbing roller part from the outside.

In addition, it is preferable that the rotary roller is integrated by foaming the impact absorbing roller part inside a casing having a hollow inside.

In addition, the casing is preferably formed to have a round cross section of the side wall.

According to the present invention, it is possible to prevent a large-sized accident by guiding a collision vehicle in the traveling direction of the road by a rotating roller, and by providing a shock absorbing roller made of a foamed urethane material, there is an effect of absorbing a shock during a vehicle collision.

In particular, the rotating roller is provided with a hard casing that surrounds the shock absorbing roller from the outside, so that even if the surface is contaminated by attached dust or a vehicle collision, it is washed with rainwater so that it is easy to clean and does not spoil the beauty of the road.

In addition, by foaming urethane inside the casing, it is possible to easily manufacture a rotary roller equipped with an impact absorbing roller part.

In addition, the two rotary rollers are formed to have a larger radius from the mutually contacting surface to each of the upper and lower portions, thereby preventing the vehicle from climbing over and over.

Further, by rolling and welding a plate-shaped metal plate, it is possible to easily manufacture a post or reinforcing post.

In addition, strength reinforcing grooves are formed in the posts, and the reinforcing posts are built in to increase the strength of the posts.

In addition, since the strength reinforcing groove is in close contact with the reinforcing post to support the reinforcing post, it is possible to support the reinforcing post without using screws.

In addition, by forming the fastening hole of the rail plate in the form of a long hole, it is easy to fasten with the post.

1 to 4 show an embodiment of a rolling guard barrier according to the present invention.
Figure 5 shows a rotary roller and a manufacturing method according to the present invention.
6 and 7 show in detail the structure and operation of the rotary roller according to the present invention.
8 to 11 is a detailed illustration of the structure and action of the support according to the present invention.
Figure 12 shows a method of manufacturing a holding according to the present invention.

Hereinafter, the configuration and operation of an embodiment of the rolling guard barrier according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 3, the rolling guard barrier 1 according to the present invention includes a post 10, a rail plate 20, and a rotating roller 3.

The post 10 is a component installed on the ground at predetermined intervals. In addition, the holding cap 13 is coupled to the upper surface of the holding (1).

In addition, two or four strength reinforcing grooves 15 are formed at equal intervals in the longitudinal direction on the surface of the support 10. It is installed so that the center of the strength reinforcing groove 15 is located on the ground. In this embodiment, the strength reinforcing groove 15 is formed with a length of 20 cm above and below the ground, respectively.

In addition, there is provided a reinforcing post 50 inside the post, and the reinforcing post 50 is also formed over the ground and is positioned above and below the ground, respectively.

The rail plate 20 is coupled to the post 10 in the transverse direction. In particular, in this embodiment, the upper rail 21 coupled to the upper portion of the post and the lower rail 22 coupled to the lower are coupled in parallel. You can see that it is. The upper rail 21 and the lower rail 22 are fastened to the post 10 with screws 11 and 12, respectively. Therefore, the upper rail 21 and the lower rail 22 are formed with fastening holes 14 that are fastened to the posts. In particular, the fastening hole 14 is formed in a long hole shape having a predetermined length in the horizontal direction. This is to give a margin of the fastening space so that the upper rail 21 and the lower rail 22 can be fastened even if the spacing between the posts is not exactly the same.

The rotary roller 30 is a component that is rotatably installed through the support 10 in the center, and is for absorbing an impact when a vehicle crashes, and for returning the crashed vehicle to a normal travel direction. A reflective paper S is attached to the rotating roller 30 to induce a gaze at night. The rotary roller 30 is installed by stacking two vertically on the support, which will be described later in detail.

Referring to FIG. 4, a plurality of auxiliary posts 40 are provided between the posts 10. The auxiliary post 40 is to be provided so as to be able to rotate the rotary roller 30 between the posts 10.

That is, the auxiliary post 40 has fastening holes 41 and 43 formed in the upper and lower portions, and the bolts 42 and 44 pass through the fastening holes 41 and 43 so that the upper rail 21 and the upper rail 21 It is screwed to the lower rail 22, and the pair of rotary rollers 30A and 30B are stacked and installed through the auxiliary post 40 as well. In addition, the holding cap 13 is covered on the upper part of the auxiliary column 40.

Referring to Figure 5, the rotary roller 30 according to the present embodiment (1) is composed of a shock absorbing roller part 32 and a casing 31.

To explain the manufacturing method, first, a molten synthetic resin is injected into a press and rotationally molded to form a hollow inner casing 31 (see (a) and (b)). The casing has a cylindrical shape as a whole and is formed to have a larger radius toward the lower (or upper) portion, and a through hole 31a through which the post 10 or the auxiliary post 40 passes is formed therein. In addition, it can be seen that the casing 31 has a round cross section of the sidewall. If, in the casing 31, the cross section of the side wall is not rounded and is formed in a diagonal line, it is not possible to prevent the vehicle from riding along the diagonal line. That is, the casing 31 is capable of preventing the vehicle from getting on and off by forming a round cross section of the sidewall (see FIG. 7 ).

Next, a circular opening 34 is formed on the upper or lower surface of the casing 31 (see (b) and (c)).

Next, the mixing agent 32a for urethane foaming is injected through the opening 34 of the casing 31 (see (d)).

The mixing agent 32a has a main raw material of PPG (polyol, ether type), and a curing agent and a catalyst are mixed.

In this way, the mixing agent 32a is injected into the casing 31 and foamed to form the shock absorbing roller part 32. The mixing agent 32a is injected into the inside of the casing 31 with a hollow inside, and foamed and molded in this state, thereby not only filling the shock absorbing roller part 32 tightly inside the casing 31, but also the casing 31 ) And the shock absorbing roller part 32 are integrated. In other words, this embodiment (1) is integrated by foam-molding the shock-absorbing roller part 32 by foam-molding urethane, and then foam-molding the urethane inside the casing 31, rather than inserting it into the casing 31. It has the characteristic of forming.

When the impact absorbing roller part 32 is foam-molded with urethane, the opening 34 is open so that the foam 32b protrudes through the opening 34 (see (e)).

As described above, by cutting and removing the foam 32b protruding above the opening 34, the rotary roller 30 is manufactured.

Since the shock absorbing roller part 32 is made of foamed urethane, it can absorb the shock when a vehicle crashes.

In particular, the casing 31 is formed of a hard synthetic resin material such as a PE material.

If the casing is not provided, the vehicle directly collides with the shock absorbing roller part 32, and attachments such as a collision mark are attached to the surface of the shock absorbing roller part 32 due to the collision pressure and friction heat, thereby contaminating the aesthetics. do. Further, even if a collision does not occur, dust adheres to the surface of the shock absorbing roller unit 32.

However, since the rotating roller according to the present invention has a hard casing 31 surrounding the shock-absorbing roller part 32 from the outside, even if the surface is contaminated by dust or vehicle collision, it is washed with rainwater, so it is easy to clean the road and does not harm the beauty of the road Will not be.

That is, according to the present invention, two parts of the rotating roller 30, such as the casing 31 and the shock absorbing roller part 32, are formed of different materials, thereby preventing the impact generated when the shock absorbing roller 32 collides. It absorbs and protects the driver and the vehicle, and is provided with a casing 31 having relatively high hardness and excellent washing power to maintain a clean appearance.

Meanwhile, a groove 33 to which a reflective paper can be attached is formed on the outer circumferential surface of the casing 31.

Referring to FIG. 6, two rotating rollers 30A and 30B stacked up and down are provided between the upper rail 21 and the lower rail 22. However, it can be seen that the distance (space, t3) between the upper rail 21 and the lower rail 22 is installed larger than the sum of the heights (t1) of the pair of rotary rollers 30A and 30B (t3> t1). That is, a predetermined space t2 exists between the upper surfaces of the rotary rollers 30A and 30B and the upper rail 21 in a state in which a pair of rotary rollers 30A and 30B are stacked and installed.

In addition, according to the present invention, the two rotating rollers 30A and 30B are stacked up and down to penetrate the post 10 or the auxiliary post 40.

By the way, it can be seen that the rotary rollers 30A and 30B are stacked symmetrically so that their radii increase from a surface in contact with each other to the top and bottom in the vertical stacked state.

That is, in the rotary rollers 30A and 30B, an inclined surface is formed in the longitudinal section on the whole or part of the side walls, thereby forming a section in which the radius is reduced.

And when the pair of rotary rollers (30A, 30B) are stacked up and down, the sections with reduced radius are stacked so as to contact each other and installed on the post 10 or the auxiliary post 40. Therefore, in the installed state, the pair of rotary rollers 30A and 30B has a shape of a gear. In this way, the radius of the center portion is the smallest, and the radius increases toward the upper and lower portions, thereby effectively preventing a collision vehicle from getting on.

Referring to FIG. 7, when a vehicle collides, the rotating roller 30A stacked on the upper part receives an external force upward and rises until it contacts the upper rail 21. At this time, a predetermined gap G is formed between the pair of rotating rollers 30A and 30B, and this operation allows some of the shock caused by the vehicle collision to be absorbed.

Referring to Figure 8, the support 10 according to the present invention has two (or four) strength reinforcing grooves 15 in the longitudinal direction on the surface to reinforce the bending strength or flexural strength. The strength reinforcing groove 15 is formed by pressing the surface of the support 10 with a press to be depressed.

Therefore, the strength reinforcing groove 15 is formed to protrude inward.

In addition, in order to reinforce the bending strength or flexural strength of the holding column 10, a reinforcing column 50 is inserted into the holding column 10. When the reinforcing post 50 is inserted into the post 10, the reinforcing post 50 is inserted in a force-fitting manner by the strength reinforcing groove 15 protruding to the inside of the post 10. Therefore, the reinforcing column 50 is supported by the strength reinforcing groove 15 (see FIG. 9).

The strength reinforcing groove 15 is located above and below the ground based on the ground (see FIG. 10), and the reinforcing posts 50 are also the same.

Referring to FIG. 11, in the case of the strut 10 in which the strength reinforcing groove 15 is not formed, it is also possible to fasten and fix the strut 10 and the reinforcing column 50 by a screw 51.

12 is a plan view showing a method of manufacturing a post according to the present invention.

First, a plate-shaped metal plate 10a having a predetermined area is prepared (see (a)), and the metal plate 10a is rolled using a pipe forming machine to form a cylindrical shape (see (b)).

Next, the opposite ends of the cylinder are welded and connected (see (c)).

Finally, a post is manufactured by removing the burr (10b) of the welding area (see (d)). The post 10 manufactured in this way is provided with an opinion connection part 10c for welding. By manufacturing the post in this way, it is possible to very simply form the post 10 at low cost without expensive extrusion equipment.

The auxiliary post 40 and the reinforcing post 50 can also be manufactured in the same way.

Hereinafter, a method of manufacturing a rolling guard barrier according to the present invention will be described.

First, to manufacture the post 10 in the order shown in Figure 12. A strength reinforcing groove 15 may be formed on the surface of the post 10, and a reinforcing post 50 may be inserted inside.

Next, the rail plate 20 is manufactured by bending a metal plate having a predetermined length.

Next, the rotating roller 30 is manufactured in the order shown in FIG. 5.

Next, the posts 10 are installed on the ground at predetermined intervals.

Next, the lower rail 22 is formed by coupling the rail plates to the lower front and rear sides of the post 10, respectively.

Next, the two rotary rollers 30 are stacked up and down so that they are supported by the pair of lower rails 22 and mounted. The two rotating rollers stacked up and down are mounted symmetrically so that their radius increases as they go downward and upward.

In addition, the auxiliary pillar 40 is coupled between the pillar and the pillar, and two rotary rollers 30 are stacked up and down on the auxiliary pillar and mounted (see FIG. 4).

Next, an upper rail 21 is formed by coupling the rail plates to the upper front and rear sides of the post, respectively.

1: Example
10: prop
20: rail plate
21: upper rail
22: lower rail
30,30A,30B: Rotary roller
31: casing
32: shock absorbing roller part
40: auxiliary holding
50: reinforcement holding

Claims (2)

1) forming a cylindrical shape by rolling a metal plate, and manufacturing a post by welding the mating ends;
2) manufacturing a rail plate fastened to the holding;
3) manufacturing a rotating roller having an impact absorbing roller part inside the casing and having a center penetrating through the support;
4) installing the posts on the ground at predetermined intervals;
5) forming a lower rail by coupling the rail plate to the lower front and rear sides of the post, respectively;
6) mounting the two rotary rollers by stacking them up and down so as to be supported by the pair of lower rails; And
7) forming an upper rail by coupling the rail plate to the upper front and rear sides of the post, respectively; includes,
Two or four longitudinal strength reinforcing grooves protruding into the inside by pressing the surface by pressurizing the post are formed at equal intervals,
The strength reinforcing grooves are respectively located above and below ground,
A reinforcing post shorter than the post is inserted into the support by a force-fitting method by the strength reinforcing groove,
The strength reinforcing groove is in close contact with the outer circumferential surface of the reinforcing post so that the reinforcing post is supported by the strength reinforcing groove inside the post,
The reinforcing posts are formed across the ground and installed to be located above and below the ground, respectively,
Step 3),
3-1) forming the casing with a hollow inside by rotationally molding the molten synthetic resin;
3-2) forming an opening in the casing;
3-3) injecting a mixture for urethane foaming through the opening;
3-4) foaming the mixture inside the casing to form an impact absorbing roller part until the foam protrudes outside the opening; And
3-5) removing the foam protruding to the outside of the opening; Including,
The casing is a synthetic resin material that is harder than the impact absorbing roller part to facilitate cleaning,
The casing is formed to be rounded so that the cross section of the side wall is concave inward,
The two rotating rollers stacked up and down are stacked symmetrically so that their radius increases as they go upward and downward from the surface in contact with each other,
A method of manufacturing a rolling guard barrier, wherein a distance between the upper rail and the lower rail is greater than the sum of the heights of the two rotating rollers stacked up and down. Two or four strength reinforcing grooves recessed in the longitudinal direction on the outer circumferential surface and protruding into the inside are formed at equal intervals, and the strength reinforcing grooves are installed to be located above and below the ground, respectively, and the inside is hollow;
Reinforcing posts inserted into the posts by force fitting and installed to be respectively located above and below the ground;
A lower rail coupled in the transverse direction to the lower front and rear sides of the post, respectively;
An upper rail coupled in a transverse direction to an upper front and a rear side of the post, respectively; And
Includes; two rotating rollers having a center penetrating through the support so as to be rotatable, formed to have a larger radius toward a lower or upper rail, and stacked between the lower and upper rails
The strength reinforcing groove is in close contact with the outer circumferential surface of the reinforcing post so that the reinforcing post is supported by the strength reinforcing groove inside the post,
The two rotary rollers are mounted symmetrically so that their radius increases from a surface in contact with each other toward the bottom and the top, respectively,
The lower rail and the upper rail are formed in a long hole shape having a predetermined length in a horizontal direction,
The rotary roller includes a casing formed to be rounded so that the inside is hollow and the cross section of the side wall is concave inward, and a shock absorbing roller part made of foamed urethane material foamed and integrated into the casing,
The casing is formed of a synthetic resin material that is harder than the impact absorbing roller part to facilitate cleaning,
A rolling guard barrier, characterized in that the distance between the upper rail and the lower rail is greater than the sum of the heights of the two rotating rollers stacked up and down.

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