KR20160098003A - Separator for road - Google Patents

Abstract

The present invention provides a separator for a road. The separator for a road includes a horizontal bar (20), wherein at least one separator is individually installed between adjacent pillars (10) and both sides in the longitudinal direction of the horizontal bar (20) are individually connected to the adjacent pillars (10) by a connection unit (30). The connection unit (30) includes: a protrusion unit (32) installed on the outer circumference of the pillar (10); and an insertion unit (34) installed in order for the protrusion unit (32) to be inserted into an end of the horizontal bar (20). Both ends of the horizontal bar (20) has a structure of an open pipe shape, and the insertion unit (34) comprises an open end of the horizontal bar (20). The separator for a road also includes: single or multiple ribs (22) attached to the protrusion unit (32) inserted into the insertion unit (34) and reinforcing the horizontal bar (20) by being formed lengthwise on the inner surface of the horizontal bar (20) in the longitudinal direction of the horizontal bar (20) to both ends. The separator for a road is advantageous to improvement of ease of assembly and stability, and prevention of damage.

Description

SEPARATOR FOR ROAD

The present invention relates to a road safety facility installed on a road.

Generally, on the road such as the center line of the roadway or the boundary line between the roadway and the roadway, a roadside separation unit, which is a kind of road safety facility, is installed for the purpose of preventing the crossing of the pedestrian, preventing the vehicle from penetrating the center line, .

Conventional road separators include a plurality of connecting members connecting a plurality of columns and columns arranged in a line.

The pillar has an empty structure inside. Both ends of the connecting member are positioned inside the support by passing the support through the wall. The connection between the support and the connecting member takes place inside the support.

Such a conventional road separator has a problem in that the coupling process is difficult and complicated and difficult because the connection between the support and the connecting member is performed in the internal space of the support which is inevitably narrow.

Further, since the parts for coupling the support and the connecting member are accommodated in the inner space of the support, the support is deformed by an external force (for example, a force applied by the collision of the vehicle) There is a problem in that it is not easy to configure to have an elastic force. That is, there is a problem that the support is easily damaged or damaged by an external force.

Korean Utility Model Registration No. 20-0418381 (published Jun. 12, 2006) Korean Patent Registration No. 10-2011-0021168 (published on March 4, 2011)

It is an object of the present invention to provide a road separation board which is more advantageous in terms of improvement in assemblability, prevention of damage or breakage, and improvement in stability.

The problems to be solved are not limited thereto, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, there is provided a vehicle comprising: a support base (12) fixed on a road; And a strut body (14) extending upward from the strut base (12) and made of an elastic material and being deformed when an external force is applied and restored when an applied external force is removed. The strut body (14) comprises a hollow upper body 142); Wherein the upper body 142 has a length L11 that is longer than the lower body 144 and the lower body 144 has a thickness The support pillars T12 are thicker than the upper pillars 142 and thus have a greater restoring force than the pillars of the upper pillars 142. [ For example, the total length of the holding body 14 may be 940 to 970 mm, and the length L12 of the lower body 144 may be 250 to 280 mm. The thickness T11 of the upper body 142 may be 4.5 to 5.2t and the thickness T12 of the lower body 144 may be 5.5 to 6.2t.

It is preferable that the outer circumference D2 of the lower body 144 of the holding body 14 is larger than the upper body 142. [ For example, the pillar body 14 may have a top outer circumference of 98 to 100 mm and a bottom outer circumference of 115 to 120 mm, and the outer circumference may be gradually enlarged from the top to the bottom.

The pillar body 14 may be provided with an air hole 146 through which air enters and exits.

According to an embodiment of the present invention, a molded article for a pillar 10 made of polyurethane and having a pillar base 12 and a pillar body 14 extending upward from the pillar base 12 An injection molding step to be performed; At least the outer surface of the strut body 14 among the strut base 12 and the strut body 14 of the obtained molded article is cooled at room temperature to remove the stress generated in the injection molding step, A method for manufacturing a pillar for road use can be provided, which includes a heat treatment step for planarizing.

The heat treatment step may be performed for 0.4 to 1.0 seconds per heated area while maintaining a distance of 8 to 12 cm from the outer surface of the molded article using a flame at a temperature of 900 to 1,100 ° C.

The method of manufacturing a pillar of a road according to an embodiment of the present invention may further include the step of attaching the reflective sheet 16 to the outer surface of the pillar body 14 after the heat treatment step.

According to an embodiment of the present invention, there are provided a plurality of pillars (10) arranged in a line adjacent to each other on a road and having the pillion base (12) and the pillion body (14); And a horizontal bar (20) disposed at least one between the adjacent columns (10) and each of which is coupled to the column bodies (14) of the adjacent columns (10) .

According to an embodiment of the present invention, there are provided a plurality of pillars (10) arranged in a line so as to be adjacent to each other on a road; And a transverse bar 20 disposed at least one between the adjacent struts 10 and both longitudinal sides of which are coupled to the adjacent struts 10 by respective engaging means 30, 30) comprises a protrusion (32) provided on the outer periphery of the support (10); And an insertion part (34) provided at an end of the horizontal bar (20) so that the projection (32) can be fitted therein. The horizontal bar (20) has a tubular structure with both ends open, The horizontal bar 20 is formed on the inner surface of the horizontal bar 20 so as to extend to both ends in the longitudinal direction of the horizontal bar 20, And a plurality of ribs (22) are provided in close contact with the projecting portion (32) fitted to the insertion portion (34).

The horizontal bar 20 has a constant cross section and has a thickness L of the front plate 210 and the back plate 220 and a thickness W of the horizontal bar 20 to determine the length L and the width W of the horizontal bar 20. Can be flattened by the two side plates 230, 240, which determine the thickness T of the substrate.

At least one rib 22 may be provided on the front plate 210, the rear plate 220 and the two side plates 230 and 240.

The two side plates 230 and 240 are respectively provided with reinforcing portions 232 and 242 for increasing the thickness T22 of the two side plates 230 and 240. The thickness T22 of the two side plates 230 and 240, May be thicker than the front plate 210 and the rear plate 220.

The reinforcement portions 232 and 242 are disposed on the outer surfaces of the two side plates 230 and 240 and may be formed in a round shape.

The engaging means 30 may further include at least one bolt 36 and a nut 38 for fastening the engaging protrusion 32 and the inserting portion 34 together.

Means for solving the problems will be more specifically and clarified through the embodiments, drawings, and the like described below. In addition, various solution means other than the above-mentioned solution means may be further proposed.

FIG. 1 is a perspective view showing a road separator according to an embodiment of the present invention. FIG.
2 is an exploded perspective view showing a part of a road separation band according to an embodiment of the present invention.
3 is a cross-sectional view showing the strut shown in Figs. 1 and 2. Fig.
4 is an enlarged view of a portion A in Fig.
Fig. 5 is a cross-sectional view showing the horizontal bar shown in Fig. 4;

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. For a better understanding of the invention, it is to be understood that the size of elements and the thickness of lines may be exaggerated for clarity of understanding. Further, the terms used to describe the embodiments of the present invention are mainly defined in consideration of the functions of the present invention, and thus may be changed depending on the intentions and customs of the user and the operator. Therefore, the terminology should be interpreted based on the contents of the present specification throughout.

The road separator according to the embodiment of the present invention can be mainly used to prevent the unauthorized crossing of the pedestrian, prevent the vehicle from leaking to the center line, or guide the running direction of the vehicle.

A road separator according to an embodiment of the present invention is shown in Figs.

As shown in FIG. 1, a road separator according to an embodiment of the present invention includes a plurality of columns 10 and a plurality of cross bars 20. As shown in FIG.

The pillars 10 are arranged in a line at regular intervals to be adjacent to each other on the road. For example, the posts 10 may be installed on the centerline of the driveway or on the boundary between the driveway and the driveway.

The horizontal bars 20 are disposed in plural numbers between adjacent struts 10 to partially block the spacing between neighboring struts 10. Specifically, the horizontal bars 20 are spaced apart from each other in the vertical direction between adjacent struts 10 at regular intervals. The number of the horizontal bars 20 disposed between the adjacent pillars 10 can be increased or decreased as appropriate. Extremely, only one transverse bar 20 may be disposed between neighboring posts 10.

The struts 10 and the horizontal bars 20 are all made of an elastic material and have a certain level of elasticity (flexibility). The pillars 10 are made of polyurethane and the horizontal bars 20 are made of polycarbonate. Preferably, the transverse bars 20 are made of a mixture of polycarbonate with 4 to 6 parts by weight of acrylic rubber to provide a further improved elasticity. The horizontal bars 20 can be manufactured by extrusion molding.

2 and 3, each strut 10 includes a strut base 12 fixed on the road by a knife block or an anchor bolt (not shown) As shown in Fig.

The support base 12 is formed to have a flat rectangular structure, and the support body 14 is formed to have an elongated bar-shaped structure. The support base (12) and the support body (14) are integrally formed.

Since the support body 14 has elasticity, when the force is applied from the outside, the support body 14 is restored to the original state when the deformed and applied force is removed, for example,

The strut body 14 includes a hollow upper body 142 and a hollow lower body 144 integrally formed with the upper body 142. Of course, the lower body 144 is connected to the upper portion of the support base 12, and the lower body is connected to the upper end of the lower body 144.

The upper body 142 has a longer length L11 than the length L12 of the lower body 144. (L11 > L12)

The lower body 144 is formed so that the thickness T12 is thicker than the thickness T12 of the upper body 142. (T11 < T12)

Since the thickness T12 of the lower body 144 is larger than that of the upper body 142, the standing body 14 is stably maintained. In addition, since the lower body 144 has a relatively greater elastic force as the thickness T12 of the lower body 144 is thicker, the trunk body 14 is bent with respect to the lower side due to the external force, It is quickly restored.

The lower body 144 is formed so that the outer circumference D2 is larger than the outer circumference D1 of the upper body 142. (D1 <D2) According to the configuration in which the outer circumference D2 of the lower body 144 is larger, The standing state of the holding body 14 can be more stably maintained and the elastic force of the holding body 14 can be further improved.

Reference numeral 146 in FIG. 2 denotes an air hole, and air holes 146 are provided in the holding body 14 in a single or plural numbers. Air is introduced into the interior of the holding body 14 or out of the interior of the holding body 14 through the air holes 146. When the holding body 14 is deformed by an external force and the internal space of the holding body 14 is contracted, air flows out from the inside of the holding body 14 through the air hole 146. On the contrary, when the deformed post body 14 is restored to the original shape, the outside air is introduced into the inside of the post body 14 through the air hole 146, thereby promoting the restoration of the post body 14.

Reference numeral 16 in Figs. 1 and 2 is a reflective sheet. The reflecting sheet 16 is attached to the outer surface of the holding body 14 in a single or plural numbers.

As shown in Figs. 1, 2 and 4, the transverse bars 20 are joined to the struts 10 adjacent to each other in the longitudinal direction by engaging means 30, respectively.

The engaging means 30 includes a protruding portion 32 provided on the outer periphery of the column body 14 and an insertion portion 34 provided so that the protruding portion 32 can be fitted to the end portion of the horizontal bar 20. That is, when the protruding portion 32 exposed to the outside is inserted into the insertion portion 34, the support 10 and the horizontal bar 20 are engaged.

4 and 5, the transverse bar 20 has a tubular structure with open ends at both ends, and the insert 34 is composed of the open end of the transverse bar 20.

The transverse bar 20 is formed on the inner surface of the transverse bar 20 so as to extend to both ends in the longitudinal direction of the transverse bar 20 so as to structurally reinforce the transverse bar 20 and to closely contact the protrusions 32, (22).

With such ribs 22, the structural strength of the rib 22 can be greatly improved. Since the ribs 22 are in direct contact with the protrusions 32, the entire inner surface of the inserts 34 comes into contact with the protrusions 32, making it difficult to insert the protrusions 32 into the inserts 34 It is possible to maintain the bonding force while preventing the phenomenon.

The engaging means 30 may further include at least one bolt 36 and a nut 38 for fastening the insertion portion 34 and the projecting portion 32 coupled to each other. In order to fasten the protrusions 32 and the inserts 34 coupled to each other with the bolts 36 and the nuts 38, the protrusions 32 and the end portions of the transverse bars 20 are provided with through holes corresponding to each other.

The transverse bar 20 has a constant cross-section. The transverse bar 20 has two side plates 20a and 20b for determining the thickness T of the front plate 210 and the rear plate 220 and the transverse bar 20 for determining the length L and the width W of the transverse bar 20, (230, 240). At least one rib 22 is provided on the front plate 210, the rear plate 220 and the two side plates 230 and 240 so that the front plate 210, the back plate 220 and the two side plates 230 and 240 are connected to the ribs 22, Respectively. At least one of the front plate 210 and the back plate 220 may be provided with a sheet (sticker) on which warning, advertisement, Since the front panel 210 and the back panel 220 are flat, it is possible to easily display a warning or advertisement text or a sheet on which an advertisement text or the like is printed.

The two side plates 230 and 240 are each provided with reinforcing portions 232 and 242 for increasing the thickness T22 of the two side plates 230 and 240 so that the thickness T22 of the two side plates 230 and 240 is greater than the thickness T22 of the front plate 210 and the thickness T21 of the back plate 220. (T21 < T22)

The reinforcing portions 232 and 242 are disposed on the outer surfaces of the two side plates 230 and 240 and are formed to be convex in a round shape.

When a large external force (strong impact) is applied to the road separator according to the embodiment of the present invention, the horizontal bar 20 can be separated from the support 10 and left on the road. In this case, since the horizontal bars 20 are flat and the outer surfaces of the two side plates 230 and 240 are rounded by the reinforcing portions 232 and 242, they can not be laid on the road, . Therefore, even if the vehicle passes over the horizontal bar 20, only a slight impact is applied to the vehicle, and the horizontal bar 20 is minimized to be damaged or damaged by its own elasticity, the rib 22 and the reinforcing portions 232 and 242 .

The pillar 10 of the roadside separator according to the embodiment of the present invention can be manufactured by the following method.

First, a molded product for the column 10 is obtained by injection molding.

Next, after the molding of the molded article is completed, the holding body 14 of the molded article or the outer surface of the holding base 12 and the holding body 14 are subjected to heat treatment and then cooled gradually at room temperature.

Specifically, the heat treatment is carried out by heating for 0.4 to 1.0 seconds per heating area while maintaining a distance of 8 to 12 cm from the outer surface of the molded article using a flame having a diameter of 60 to 70 mm and a temperature of 900 to 1,100 ° C do.

By performing the heat treatment in this manner, the stress of the molded article generated in the injection molding step can be removed, and the molded article can have a smooth, smooth and glossy outer surface. If the outer surface of the molded article is smooth, scattering dust or the like is not easily adhered, and thus contamination due to dust or the like can be prevented.

Next, the reflective sheet 16 is attached to the outer surface of the columnar body 14. At this time, the outer surface of the molded article is smooth and flat, so that the reflective sheet 16 is firmly attached to the molded article.

The following Table 1 shows Examples and Comparative Examples in which the column 10 was subjected to heat treatment under the different conditions of injection molded products of polyurethane.

[Table 1]

In Table 1, the flame temperature (캜), the distance (㎝) and the heating time (sec) are the temperature of the flame for heat treatment of the molded article, the distance from the outer surface of the molded article to the flame, It is an hour.

The impact resistance and bending resistance were tested for these examples and comparative examples. The test methods are shown in the following [Table 2] and [Table 3], respectively.

[Table 2]

The impact resistance test is intended to measure the extent of damage to the support 10 due to a vehicle collision or the like on the road. In the impact resistance test, a chamber containing temperature and humidity control, a sample holder placed inside the chamber, and a hammering device capable of controlling the impact velocity and impacting the sample mounted on the sample holder were used. The impact resistance test equipment was divided into a high temperature test and a low temperature test. The examples and comparative examples were mounted on a sample holder and maintained at the temperature and relative humidity of [Table 2] for 2 hours, and impact was repeatedly applied at the impact speed and frequency of [Table 2] by a striking device.

[Table 3]

The bendability test is intended to measure the degree of breakage and bending due to bending occurring in the support 10 due to repeated vehicle collisions on the roads. The bending resistance test was conducted using equipment including a stage on which a sample is mounted, a traveling device equipped with a tire capable of controlling impact velocity and load, and impacting a sample mounted on the stage. After mounting the examples and the comparative examples on the stage, the impact was repeatedly applied at the impact speed, load and frequency of [Table 3] by the traveling device.

The results of the test methods for impact resistance and bending resistance are shown in [Table 4] and [Table 5] below.

[Table 4]

[Table 5]

As shown in Table 4, in Examples 1 to 3, cracks of less than 2 cm, which is the evaluation standard of impact resistance test, were detected or cracks were not detected at all. On the other hand, in Comparative Example 1 and Comparative Examples 3 to 5, cracks of 3 cm or more, which exceeded the evaluation criteria of the impact resistance test, were detected.

As can be seen in Table 5, all of Examples 1 to 3 were not damaged as a result of visual inspection and recovered to the original shape. On the other hand, in Comparative Example 1 and Comparative Examples 3 to 5, breakage such as shear fracture occurred, Permanent bending occurred without recovery.

The test results for Comparative Example 1 and Comparative Examples 3 to 5 were not sufficiently heated due to the comparatively low flame temperature (850 ° C) in Comparative Example 1, and in Comparative Examples 3 and 4, The surface temperature of the surface was not sufficiently transferred in a relatively close distance or a distance (6 cm, 13 cm), and in the case of Comparative Example 5, it was not sufficiently heated due to the relatively short heating time (0.3 sec) And the stress is mostly not removed.

On the other hand, in Comparative Examples 2 and 5, no cracks were detected and no breakage or permanent bending occurred. However, this is not preferable because relatively high flame temperature (1,150 ° C) and relatively long heating time (1.2 seconds) are required, which requires relatively long energy and time for heat treatment.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

Further, the technical ideas described in the embodiments of the present invention may be performed independently of each other, or two or more may be implemented in combination with each other.

For example, the pillars 10 may be used as a tubular marker. Alternatively, the pillar 10 may be used to construct a road safety facility other than a road pavement.

10: Holding
12: holding base
14: holding body
142: upper body
144: Lower body
146: air hole
16: reflective sheet
20: Crossbar
22: rib
210: front plate
220: back plate
230, 240: side plate
30: coupling means
32:
34:
36: Bolt
38: Nuts

Claims (4)

A plurality of struts (10) arranged in a row so as to be adjacent to each other on a road; And a horizontal bar (20) disposed at least one between the neighboring struts (10), both sides of which in the longitudinal direction are connected to the adjacent struts (10) by means of coupling means (30)
The strut (10) comprises: a strut base (12) fixed on the road; And a strut body (14) extending upward from the strut base (12) and made of an elastic material and being deformed when an external force is applied and being restored when an applied external force is removed,
The strut body 14 includes a hollow upper body 142; And a hollow lower body (144) integral with the upper body (142)
The length L11 of the upper body 142 is longer than that of the lower body 144 and the thickness T12 of the lower body 144 is thicker than the upper body 142, A large restoring force,
The struts 10 are formed by injection molding with polyurethane and subjected to a heat treatment process in which heat is applied to at least the outer surface of the columnar body 14 after injection molding and then cooled at room temperature to remove stress generated during the injection molding process.
Wherein the heat treatment includes heating the flame at a temperature of 900 to 1,100 DEG C for 0.4 to 1.0 seconds per heating area while maintaining a distance of 8 to 12 cm from the outer surface.
Separators for roads. The method according to claim 1,
The lower body 144 has an outer periphery D2 that is larger than the upper body 142,
Separators for roads. The method according to claim 1 or 2,
The pillar body 14 is provided with an air hole 146 through which air enters and exits,
Separators for roads. A plurality of struts (10) arranged in a row so as to be adjacent to each other on a road; And a horizontal bar (20) disposed at least one between the neighboring struts (10), both sides of which in the longitudinal direction are connected to the adjacent struts (10) by means of coupling means (30)
The strut (10) comprises: a strut base (12) fixed on the road; And a strut body (14) extending upward from the strut base (12) and made of an elastic material and being deformed when an external force is applied and being restored when an applied external force is removed,
The strut body 14 includes a hollow upper body 142; And a hollow lower body (144) integral with the upper body (142)
The length L11 of the upper body 142 is longer than that of the lower body 144 and the thickness T12 of the lower body 144 is thicker than the upper body 142 and the outer diameter D2 Is larger than the upper body (142) and has a larger restoring force than the upper body (142)
The struts 10 are formed by injection molding with polyurethane and subjected to a heat treatment process in which heat is applied to at least the outer surface of the columnar body 14 after injection molding and then cooled at room temperature to remove stress generated during the injection molding process.
Wherein the heat treatment includes heating the flame at a temperature of 900 to 1,100 ° C. for 0.4 to 1.0 seconds per heating area while maintaining a distance of 8 to 12 cm from the outer surface,
The coupling means (30) comprises a protrusion (32) provided on the outer periphery of the strut (10); And an insertion part (34) provided at an end of the horizontal bar (20) so that the projection part (32) can be fitted,
The transverse bar 20 has a tubular structure with both open ends and the insert 34 comprises an open end of the transverse bar 20,
The transverse bar 20 is formed on the inner surface of the transverse bar 20 so as to extend to both ends in the longitudinal direction of the transverse bar 20 to reinforce the transverse bar 20 and to closely contact the protruding portion 32 fitted to the inserting portion 34 The ribs 22 are provided in a single or plural number,
Separators for roads.

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