JP3011016U - Barrier block - Google Patents

Abstract

(57) [Summary] [Purpose] An object of the present invention is to provide a barrier block that is lightweight, easy to load and unload, and easy to carry out on-site, quick to remove, and easy to remove and move. A hollow body 10 having a substantially inverted T-shaped cross section and a cross-section that widens toward the intersection of the T-shape and has a predetermined length is formed from a plastic material. A barrier is formed by connecting the pieces by the first connecting means 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to a barrier block installed to separate roadways.

[0002]

[Prior art]

 As the protective fence 20 used for the median strip of the roadway, there is one disclosed in, for example, Japanese Patent Publication No. 63-8241, which is shown in FIGS. 6 to 7. That is, the upper half portions 21a of both side surfaces 21 facing the roadway 25 are formed into substantially straight walls, and the lower half portions 21b are formed into sloping sloping walls, and the connecting portions 21c of the two walls are formed into curved surfaces. A protective fence 20 is formed as a wall surface against the vehicle. This integrally formed protective fence 20 is formed in a frame shape having a void 22 inside, and vertical grooves 23 are provided in both connecting walls for connecting the protective fence 20 to each other, and a half socket 24 is formed. The projections should be installed at symmetrical positions on both side connecting walls. The half socket 24 allows positioning when the protection fences 20 are connected to each other.

[0003]

[Problems to be solved by the device]

 However, the conventional guard fence 20 for the separator shown in FIGS. 6 to 7 has the following drawbacks.

That is, the separation fence 20 is made of concrete in a factory or the like, and is transported to the construction site as a heavy object, and the separation strip to be the base 27 is dug back to the ground and grounded with the anchor 29 and concrete 28. It is hardened and installed.

Therefore, in the case of this type of protective fence 20, when it is manufactured in a factory or the like, it occupies a valuable manufacturing work place for a long time, and since the product is a large product, it requires a large space for storage.

In the field installation work, a large amount of materials and man-hours were required to make the base 27. In addition, it is difficult to use this kind of protective fence 20 because there are many places where the foundation 27 cannot be built on the bridge road. Furthermore, in the case of an accident in which the road is closed, the protection fence 20 cannot be easily removed due to the concrete attachment, which alleviates the traffic disruption caused by the accident. There was a problem that it took time.

Therefore, the problem to be solved by the present invention is to provide a barrier block that is lightweight, easy to load and unload, and easy to perform on-site construction and quick, and easy to remove and move. The purpose is to.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the invention described in claim 1 is a plastic material having a hollow body having a substantially inverted T-shaped cross section and having a predetermined length in a cross section that widens toward the intersection of the T shapes. It is characterized in that the barrier is formed by filling the hollow body with a filler and connecting a plurality of the hollow bodies with the first connecting means.

According to a second aspect of the invention, in the barrier block according to the first aspect, the hollow body is divided into two as a first hollow member and a second hollow member at a substantially central portion of a substantially T-shaped cross section. The feature is that a reinforcing rib is formed on each inner surface.

According to a third aspect of the invention, in the barrier block according to the second aspect, the reinforcing ribs of the first hollow member and the second hollow member that are opposed to each other in the horizontal direction are connected by the second connecting means. It is characterized by having done.

According to a fourth aspect of the invention, in the barrier block according to the third aspect, the second connecting means forms an engaging portion on each of the opposing ribs, and the pair of engaging portions. Is engaged by an engaging tool.

According to a fifth aspect of the invention, in the barrier block according to the third aspect, the second connecting means extends each of the opposing ribs until they overlap with each other, and provides connecting holes at the overlapping positions. At the same time, the pair of connecting holes are connected by a connecting tool.

According to a sixth aspect of the invention, in the barrier block according to the fifth aspect, the connecting member is a bar member that penetrates through a plurality of pairs of connecting holes formed in a straight line. I am trying.

[0014]

[Action]

 According to the invention of claim 1, the filler is filled in the hollow body formed of the plastic material, and the plurality of members are connected by the first connecting means such as the rod to form the barrier. It is possible to make a barrier by transporting a light plastic hollow body up to and quickly installing it in a predetermined position, filling it with a filling material such as concrete with a concrete mixer car, and solidifying it at the place of installation. become able to.

According to the second aspect of the present invention, the hollow body is divided into the first and second hollow members, and the reinforcing ribs are formed on the inner surfaces of the first and second hollow members, respectively. Also, the shape retention property in a necessary part can be maintained.

According to the inventions of claims 3 and 4, since the engaging portions are formed on the reinforcing ribs of the first and second hollow members which are opposed to each other in the horizontal direction, and the engaging portions are engaged with each other, The two hollow members are integrated so that they do not spread even under the internal pressure from the filling material.

According to the inventions of claims 5 and 6, the ribs facing each other are extended to overlap with each other, and the connecting holes are provided at the overlapping positions, and the ribs are connected by a connecting member such as a rod member. The two hollow body members are integrated so that they do not spread even under the internal pressure from the filling material, and at the same time, when a plurality of pairs of connecting holes are provided in a straight line, they can be easily connected from the outside with a rod member. Become.

[0018]

【Example】

 Hereinafter, the present invention will be described with reference to the drawings showing a preferred embodiment.

First Embodiment FIGS. 1 to 3 are views showing a first embodiment of the present invention.

First, the structure will be described. In the figure, reference numeral 1 is a barrier block 1, which is formed of two types of male mold 1a and female mold 1b and is formed by filling a hollow body 10 with a filler. . In this male block 1a for barriers, the end face portion 3b has a projection shape, while in the female die 1b, the end face portion 3b forms a concave portion complementary to the protrusion 2a of the male die 1a. Other than that, the two types 1a and 1b have the same structure.

This barrier block 1 is a so-called first connecting means for filling a hollow body 10 with a filler and inserting a plurality of rods 2d into a small hole 2c formed in both end face portions 3b of straight or curved rods 2d. A barrier is formed by connecting two.

The upper surface 4 of the hollow body 10 is provided with a plurality of filling ports 4 a, and the corners extending from the lower portions 3 d of both side surface parts to the bottom 8 are provided with a plurality of discharging ports 6. The filling port 4a is used as a working port for inserting a rod and the like when the hollow body 10 is assembled, and is also used for putting concrete, water bag, sand bag, etc., which are fillers, into the barrier block 1. To be done. Further, the discharge port 6 is used for discharging rainwater entering the barrier block 1 through the filling port 4a of the upper surface portion 4 and the like and water coming out when the filling material is solidified.

Next, as shown in FIG. 2, the hollow body 10 has a substantially inverted T-shaped cross section and a cross section that widens toward the intersection of the T-shape. More specifically, the upper and lower side walls 3c of the inverted T-shaped cut surface are formed into a substantially vertical surface with a slightly thicker lower portion and connected to the lower side wall portion 3d, and the lower side wall portion 3d is 45 ° on one side. It is composed of a slope inclined to the front and back and a vertical surface following it.

As a result, there is a geometrical effect that the wheel riding on the lower side wall 3d easily slides down, and at the same time, when the hollow body 10 is filled with the filler, the lower side wall having a high pressing force from the filler. 3d has a structure in which the pushing force becomes a component force by tilting the side surface and the force applied to the side wall 3a is reduced to improve the strength.

Regarding the dimensions of the hollow body 10, it is preferable that the thickness of the hollow member is 3 mm, the height is 0.8 m, and the length is about 2 m, but the length and the like are changed according to the molding apparatus and the like. You can also do it. Further, the material is mainly glass fiber-containing unsaturated polyester resin, so-called FRP, which is used for press molding. The weight of the hollow body 10 is about 22 kg.

Further, as shown in FIGS. 2 and 3, the hollow body 10 is divided into a first hollow member 11 and a second hollow member 12 at a substantially central portion of a substantially T-shaped cross section, and the inner surface of each member is reinforced. Ribs 7 are formed.

The reinforcing ribs 7 are increased in strength at the lower side wall 3d where the filling amount is large and the pressing force from the filling material is large when the filling material is filled, and the rib spacing is increased to increase the strength. The rib spacing is widened to make the overall strength balance even and to withstand the pressure from the filler. In addition, it goes without saying that the height of the ribs should be adjusted depending on the part in order to balance the strength.

The installation of the barrier block 1 having such a configuration will be described.

As shown in FIG. 1, a barrier block, which is a lightweight hollow body 10 of about 22 kg formed by FRP, is transported to the construction site and unloaded.

First, the installation is positioned and the anchor bolt 5a is driven. Then, the holes formed in the bottom portion 8 of the unloaded hollow body 10 are inserted into the anchor bolts 5a, and the male mold 1a and the female mold 1b are alternately combined and arranged. A rod 2d is inserted into the small hole 2c of the end face portion 3b of the hollow body 10 to connect the male and female dies 1a and 1b.

When the hollow bodies 10 have been connected in this way, as a final step, concrete or the like carried by a concrete / mixer truck or the like is poured into the hollow bodies 10 through the filling port 4a of the upper surface portion 4. The barrier construction work is completed when the filled concrete is completely solidified.

In addition, when removing or moving this barrier, the bottom anchor bolt 5a of the barrier block 1 and the connecting rod 2d of both end face portions 3b are cut, and then lifted from the male mold 1a by a crane vehicle or the like to remove it. As a result, the protrusion 2a of the end face portion 3b is disengaged and can be easily moved later.

Further, as the applicable range of the barrier block 1, besides the barrier of the median strip of the road, it can be applied to the guard of the erected road, the guard of the construction site, the sidewalk fence, and the like. At this time, as a filling material to be used, not only concrete but also a water bag or a sand bag is inserted from the filling port 4a of the upper surface portion 4 and the hollow body 10 is fixed, whereby a simple temporary construction can be performed.

Second Embodiment FIG. 4 is a perspective view showing a second embodiment.

Reference numeral 10 is a hollow body, and is composed of a first hollow member 11 and a second hollow member 12 which are symmetrically divided into two at approximately the center of the substantially T-shaped cross section, and these two hollow members 11 and 12 are Installed in opposite directions and assembled together.

The hollow body 10 has reinforcing ribs 13 that are opposed to each other in the horizontal direction between the first hollow member 11 and the second hollow member 12 to improve the strength of the hollow member and to increase the strength of the two hollow members 11. , 12 for assembly. In the partial perspective view of FIG. 4, the reinforcing rib 13 is visible only at one location, but is provided at a plurality of locations in the longitudinal direction of the hollow members 11 and 12.

Then, the second connecting means is provided between the opposing reinforcing ribs 13. The second connecting means is composed of an engaging hole 13a as a locking portion provided on each of the opposing reinforcing ribs 13 and an engaging tool 15 which engages between the engaging holes 13a. The locking portion here may be a hook, a stud bolt, or the like, but here, the locking hole 13a is used.

Then, the engaging tool 15 is fitted into each pair of the engaging holes 13 a of the reinforcing rib 13, and the two hollow members 11 and 12 are engaged and assembled together. Although the engagement in the second embodiment is performed in three steps, the number may be increased or decreased to an appropriate number depending on the type of the filler. The hollow body 10 is assembled by engaging the engaging members 15 having long, medium and short lengths with the engaging holes 13a provided in three steps facing the reinforcing ribs 13 while rotating and inserting them.

The engaging member 15 is made of a steel rod or the like, and both ends of the tip of the rod are symmetrically bent to approximately 90 ° according to the length between the engaging holes 13a, and further at appropriate positions. The engagement tool 15 is bent at about 90 ° to prevent it from falling off. It is needless to say that the engagement tool can be engaged with a wire, a rope or the like other than the illustrated engagement tool.

The other configurations and installations are the same as those in the first embodiment, and the description thereof will be omitted.

Third Embodiment FIG. 5 is a partial perspective view showing a third embodiment.

In the third embodiment, reference numeral 10 is the barrier block 1, and similarly to the second embodiment, the first hollow member 11 and the second hollow member 12 are symmetrically arranged at the substantially center of the substantially T-shaped cross section. It is divided into two parts, and has a structure in which the connecting ribs 14 facing each other are connected by a second connecting means to be integrally assembled.

In this second connecting means, it is conceivable to extend the reinforcing ribs 14 facing each other at a plurality of positions until they overlap with each other, and connect the overlapping parts with nails, rivets, shakoman, etc. As an example of the inside, a connecting method using the connecting tool 16 will be described below.

That is, the connecting hole 14a is penetrated through the overlapping portion, and the plurality of through holes are provided in a straight line, and the connector 16 has the overlapping connecting hole 14a at each position. And / or the connection tool 16 is configured to pass through and be connected to each step collectively. And, the function of stopping the two hollow members 11 and 12 from being expanded is imposed.

The extending connecting ribs 14 are formed in three stages in the third embodiment. Further, although only one place is visible in the partial perspective view of FIG. 5, the connecting rib 14 is provided at a plurality of places in the longitudinal direction of the hollow members 11 and 12. When connecting the connecting ribs 14, the upper and middle stages are easy to work near the filling port 4a. Therefore, bolts and nuts 16a and 16b are used to fasten them in the overlapping connecting holes 14a. However, since the lower one is at the bottom and is in a position where it is difficult to work deeply, the connecting rod 16c is fitted into the connecting hole 14a penetrating straight through the small hole in the end face 3b of the hollow body and the two hollow parts are The structure is such that 11 and 12 cannot be spread.

As the connecting tool 16, a combination of bolts and nuts 16a and 16b is used where it can be connected individually, and a steel bar having both ends threaded is used as a connecting bar 16c in the lower part where workability is poor. To do. The length of this connecting rod 16c is such that it protrudes from the end face of the hollow body to the both sides by the screw amount of the socket nut 16d, and the screw nuts on both ends are screwed with socket nuts 16d that are threaded forward and reverse. It is configured to let.

When the connecting rod 16c is used as a barrier, when the socket nuts 16d are screwed into the screw portions of both the connecting rods 16c between the adjacent hollow bodies 10, the screws are reversed. Since they are cut, both connecting rods 16c are pulled together, and when the side surface portion 3b of the hollow body 10 comes into contact with the side surface of the wrench at the center of the socket nut 16d, the rollers are screwed together and assembled as a barrier.

Incidentally, in consideration of the connecting strength of the hollow body 10 and the like, the connecting rod 16c may be replaced by the connecting rod 16c or 16b, and may be all connecting rods 16c or may be an eclectic rod. Is.

The other configurations and installations are the same as those in the first embodiment, and thus the description thereof will be omitted.

[0050]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects.

According to the invention of claim 1, since the member of the hollow body formed of the plastic material is light in weight, it can be easily loaded and unloaded, and the connection and installation at a predetermined position after transportation to the construction site can be speedy. You can do it. Furthermore, there is no space problem simply by pouring the filling material into the hollow body that is installed in a place where time is not a concern and is not used for other purposes. Can be reduced.

Furthermore, when a hollow body weighing 20 kg or more was filled with concrete, the total amount was about 1,300 kg, which was not broken or deformed even when a vehicle collided and was used for the median strip. In this case, it is possible to reliably prevent the vehicle from jumping out to the oncoming lane.

According to the invention of claim 2, since the reinforcing ribs are provided on the inner surface of the hollow body, the rib interval is narrowed in the lower side surface where the pressure from the filler is large, and the upper side surface where the pressure is low is between the ribs. The space is widened so that the strength of the hollow body can be balanced.

According to the inventions of claims 3 and 4, since the reinforcing ribs of the first and second hollow members facing each other in the horizontal direction are connected by the second connecting means, the two hollow members are made of a filler. It is integrated so that it does not spread even under the filling pressure.

According to the inventions of claims 5 and 6, since the facing ribs are extended to overlap each other, the connecting holes are provided at the overlapping positions, and the ribs are connected by a connecting member such as a rod member. The two hollow body members are integrated so that they do not spread even under the filling pressure from the filling material, and at the same time, they can be connected to the adjacent hollow bodies by the rod member.

[Brief description of drawings]

FIG. 1 is a perspective view of a barrier using a barrier block according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a partial perspective view of a hollow body showing a second embodiment of the present invention.

FIG. 5 is a partial perspective view of a hollow body showing a third embodiment of the present invention.

FIG. 6 is a plan view of a separation-zone protective fence showing a conventional example.

FIG. 7 is a partial side view and CC sectional view of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Barrier block 2 ... Connection means 4a ... Filling port 5 ... Road surface 6 ... Discharge port 7 ... Rib 10 ... Hollow body 13 ... Reinforcing rib 14 ... Connecting rib 15 ... Engaging tool 16 ... Connecting tool

Claims (6)

[Scope of utility model registration request] 1. A hollow body having a substantially inverted T-shaped cross section and having a predetermined length in a cross section that widens toward the intersection of the T-shape is formed from a plastic material, and the hollow body is filled with a filler, A barrier block, characterized in that a barrier is formed by connecting individual pieces with a first connecting means. 2. The hollow body is divided into two parts, a first hollow member and a second hollow member, at a substantially central portion of a substantially T-shaped cross section, and a reinforcing rib is formed on an inner surface of each of the first hollow member and the second hollow member. Barrier block. 3. The barrier block according to claim 2, wherein the reinforcing ribs of the first hollow member and the second hollow member which are opposed to each other in the horizontal direction are connected by the second connecting means. 4. The second connecting means according to claim 3, wherein each of the opposing ribs has a locking portion, and the pair of locking portions are engaged with each other by an engaging tool. Barrier block. 5. The second connecting means is characterized in that the ribs facing each other extend until they overlap with each other, connecting holes are provided at the overlapping positions, and the pair of connecting holes are connected by a connecting tool. Item 5. The barrier block according to Item 3. 6. The barrier block according to claim 5, wherein the connecting member is a bar member that penetrates through a plurality of pairs of connecting holes formed in a straight line.