JPH09105108A - Concrete boundary block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To greatly save labors and facilitate a mechanical execution, by forming respective square pedestal-form recession and protrusion provided with a hollow at the bottom face at the right and left side faces of a block body 1A and forming the right and left lengths of the body to have a nearly specified length. SOLUTION: Mutually fitted square pedestal-form recess 1A41 and the same shape protrusion 1A51 are formed at the right and left side faces 1A5, 1A4 of a block body 1A. A hollow 1A6 for suspension is formed at the bottom face and the length of the body 1A is formed about 2000mm. The receive rod of a hanging tool is inserted in the hollow 1A and the block is installed while a wire connected between shackles is hoisted by a heavy construction machine. In this way, the finish density can be kept constant only by engaging the recess and the protrusion even by an inexperienced person. And hence, the work is made efficient and labors are saved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete boundary block suitable for use as a partition stone for roads and sidewalks on roads and as a paving stop for roads. At present, the matters that require the most improvement in civil engineering work are the construction methods that require labor saving and special skills, but the present invention seeks to solve these two points.

[0002]

2. Description of the Related Art Conventionally, this type of curb is as follows. 1. It has a so-called short shape (600 mm to 1000 mm). 2. The connection is a vertical surface. 3. The foundation is constructed to be constructed separately.

[0003]

The above-mentioned prior art has the following problems. 1. Since it is a so-called short type (600 mm to 1000 mm), it requires a large amount of labor for construction and a special (masonry) technique. That is, since the length of one piece is short, the number of connecting portions is large and the workability is very poor. 2. Workability is poor in construction because the connection part is a vertical surface. That is, since the connection is a plane connection, it is difficult to fit the connection portions, and the finish of the connection portions is often ugly. To avoid this, special (masonry) technology is required. 3. Since the foundation will be constructed separately, at least two people will have to work, which requires a long construction period. 4. The laying work is carried out by hoisting a curb, but such work is dangerous to an unfamiliar person, and there are many corner chips due to contact during work, resulting in poor workability. In particular, in order to avoid such problems as curb corner chipping, it takes time and labor, and workability is extremely poor.

[0004] The present application has been made in view of such problems of the prior art, and an object thereof is to provide the following. Conventional short block is long (2000 mm)
At the same time, by forming a new connection structure, it is possible to greatly save labor and facilitate machine construction.

[0005]

In order to achieve the above object, the present invention is as follows. That is, according to the present invention, in the block main body 1A in which the front surface portion 1A2 of the horizontally long rectangular columnar body 1A1 is formed into an inclined surface, and the lower surface is provided with the downwardly-substantially U-shaped recess portion 1A3. Left side 1 of body 1A
A4 and the right side surface 1A5 have a truncated pyramid-shaped concave portion 1 that engages with each other when the block main body 1A is continuously provided in the left-right direction.
A41 and a truncated pyramid-shaped convex portion 1A51 are formed, and at the bottom surface of the block main body 1A, there is formed a recessed portion 1A6 for lifting which is arranged in a downwardly oriented substantially U-shape at the left and right positions, and the block main body 1A. The left and right sides of the concrete boundary block are configured to have a length of about 2000 mm.

The present invention operates as follows. 1. The hoisting tool 2 is locked to the left and right hoisting depressions 1A6 of the concrete boundary block, and hoisting work is carried out horizontally. Referring to FIGS. 6 and 7, the suspending tool 2 includes a left and right frame 2A having a substantially inverted L shape, upper and lower horizontal pipes 2B stretched between the left and right frames, and a horizontal portion at the lower ends of the left and right frames. Left and right receiving rods 2C, which are connected in a certain direction, and left and right frames 2
It is composed of a shackle locking small hole 2A1 opened at the upper end of A. Therefore, the left and right receiving rods 2C of the hanging device 2
Is inserted into the left and right hoisting recesses, and a wire (not shown) connected between shackles (not shown) is hoisted by a heavy machine to perform the laying work. 2. Pull the concrete boundary block 1 located on the left side to the concrete boundary block 1 located on the right side,
The convex portion of the latter is fitted into the concave portion of the former and connected. The same operation is repeated in the following order.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. Reference numeral 1 is a concrete boundary block of the present invention, which is a front surface portion 1 of a horizontally long prismatic body 1A1.
A block main body 1A in which A2 is formed into an inclined surface and a downwardly facing generally U-shaped concave portion 1A3 is formed on the lower surface.
In the left side surface 1A4 and the right side surface 1A5 of the block body 1A, when the block body 1A is connected in the left-right direction, they are engaged with each other by a truncated pyramid-shaped recess 1A41 and a truncated pyramid-shaped projection. 1A51 is formed. Further, the bottom surface of the block body 1A is formed with a recessed portion 1A6 for lifting, which is formed in a downward substantially U-shape at the left and right positions. Further, the left and right lengths of the block body 1A are configured to be about 2000 mm. Height is about 2
The depth of the bottom surface is about 50 mm and about 260 mm.

[0008]

Since the present invention is configured as described above, it has the following effects. A. By setting the length to about 2000 mm, the work efficiency per 1000 mm can be further improved and it can contribute to the labor saving of the work. B. By engaging the concave portion and the convex portion of the connection surface, the finish can be made constant even by an inexperienced person, so that no special skill is required and the workability can be improved and the finish can be improved. Moreover, the concave portion and the convex portion of the connecting surface are smoothly connected, and no correction is required. In addition, work efficiency and labor saving can be achieved. C. Work and transportation have been greatly improved by installing the recess for lifting. That is, at the time of laying work, the concrete boundary block 1 can be carried out while maintaining the horizontal level in good balance, so that the connection can be made smoothly and safely. D. Since it can be manufactured by the instant demolding method of highly flexible concrete, it can be mass-produced with one mold.

[Brief description of the drawings]

FIG. 1 is a front view of the present invention.

FIG. 2 is a right side view.

FIG. 3 is a left side view.

FIG. 4 is a bottom view.

FIG. 5 is a front view showing a connected state.

FIG. 6 is a plan view of a suspender.

FIG. 7 is a sectional view taken along line AA.

[Explanation of symbols]

 1 Concrete boundary block 1A Block main body 1A41 Pyramidal trapezoidal recess 1A51 Pyramidal trapezoidal projection 1A6 Lifting recess

Claims (1)

[Claims] 1. A block main body in which a front surface portion (1A2) of a horizontally long rectangular columnar body (1A1) is formed into an inclined surface, and a downward substantially U-shaped recess portion (1A3) is formed on a lower surface. In (1A), the left side surface (1A4) and the right side surface (1A5) of the block body (1A) are pyramidal trapezoidal shapes that engage with each other when the block body (1A) is connected in the left-right direction. Of the block main body (1A41) and the truncated pyramid-shaped convex portion (1A51) are formed.
The bottom surface in A) has a recessed portion (1A6) for lifting which is formed in a substantially U-shape downward at the left and right positions, and the left and right lengths of the block body (1A) are configured to be about 2000 mm. Concrete boundary block characterized by being.