JPH022766Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention connects the connecting fittings embedded in the sides of the L-shaped main body with bolts and nuts, and at the same time connects the connecting fittings embedded in the sides of the L-shaped main body through the gap created between the main bodies. The present invention relates to a block for a retaining wall, which is characterized by forming a strong retaining wall forever by draining rainwater that has permeated into the earth and sand to the outside and preventing the earth from softening.

``Prior art'' Conventional methods for connecting the left and right sides of this type of block include joining adjacent blocks with mortar interposed between the sides, or forming protrusions on one side and recesses on the other side. Strips were provided and mortar was interposed between the sides of adjacent blocks to connect them. However, with this type of joint, ground subsidence and vibration can cause the mortar to peel off, or the protrusions to disengage from the grooves, causing the blocks to sink or tilt, causing individual blocks to become damaged. It had the disadvantage that it could easily fly out and collapse, making it impossible to achieve its original purpose. Therefore, the applicant of the present invention first applied for Utility Application No. 57-127085.
No. (Utility Model Application Publication No. 59-31645), both pieces of U-shaped connecting fittings are embedded in the vertical part and inner corner of the main body with an L-shaped cross section, and the upper corner of the horizontal part, and We devised a structure in which the concave portion is flush with the side surface of the main body, an oblique long hole is provided in the center in the same direction as viewed from the side surface, and an opening is provided inside the connecting fitting. This means that when adjacent bodies are brought together, both sides are in close contact with each other.
Then, the connecting fittings abut, and the elongated hole made in it intersects the adjacent one in an X shape, so even if there is a slight difference in the front and back and up and down, the width of the elongated hole will pass through, and the bolt can be inserted into this. It can be inserted through and tightened with nuts, creating a strong retaining wall.

``Problem that the invention aims to solve'' With the above configuration, the sides between the bodies are in close contact with each other, and during rain, etc., the dirt on the back of the body is
They contain a large amount of water, and there is no place for this water to escape, which increases the pressure of the soil containing water, which has the disadvantage of making the retaining wall more likely to collapse. Therefore, this idea is
By configuring protrusions on one side of the vertical and horizontal parts of the main body, when this is constructed, a gap is created between the main bodies, which allows moisture contained in the earth and sand on the back of the main body to be discharged to the outside. This prevents earth and sand from softening, reduces earth pressure, and provides a strong retaining wall over a long period of time.

"Means for Solving Problems" To explain the structure with reference to the drawings, 1 is a main body, with a cross section L formed by a vertical part 2 and a horizontal part 3.
formed into a shape. Reference numeral 4 denotes a protrusion provided at an appropriate position on one side of the vertical portion 2 of the main body 1. 5 is a protrusion provided at an appropriate position on one side of the horizontal portion 3. Reference numeral 6 denotes a connecting fitting, which is formed into a U-shape consisting of a central portion 7 and both pieces 8.
is provided with an oblique long hole 9 which runs in the same direction, and is provided with both pieces 8 at the inner corner of the protrusion 4 on one side of the vertical part 2 and at the upper corner of the protrusion 5 of the horizontal part 3. ，
8, and the outer surface of the protrusion 4 of the central part 7 and the protrusion 5
The surface is the same as the top surface of. An opening 10 is provided between both pieces 8 of the connecting fitting 6. The connecting fitting 6 has at least (on one side) a vertical part 2 and a horizontal part 3.
In the drawing, the vertical part 2
Two pieces are provided in the horizontal part 3, and one piece is provided in the horizontal part 3. And on the other side of the vertical part 2 and horizontal part 3 of the main body 1,
A connecting fitting 6 is similarly provided at a position symmetrical to the connecting fitting 6 on one side. If necessary, protrusions 4 and 5 may be provided on both sides. Reference numeral 11 denotes a reinforcing bar buried inside the main body 1, to which the connecting fitting 6 is welded. 12 is a bolt inserted into the elongated holes 9, and 13 is a nut.

"Function" Since the present invention has the above-mentioned structure, the third
As shown in FIG. At the same time, when the protrusions 4 and 5 abut, gaps are created between the vertical parts 2 and 2 and between the horizontal parts 3 and 3, and the elongated holes 9 and 9 provided in the center part 7 of the connecting fitting 6 intersect. The width of the elongated hole 9 communicates with each other, and the bolt 12 is inserted through this and the nut 13 is tightened. Then, if necessary, the hole 10 is filled with mortar for construction. Next, fill the back of the vertical part 2 and the horizontal part 3 with backfill earth and sand or concrete, and if necessary, place the lower part of the vertical part 2 of the upper block on the vertical part 2 and carry out the construction in the same way. It is something to do.

"Effects of the invention" In the present invention, since the long holes 9 are provided in the central part 7 of each connecting fitting 6 in the same direction, the adjacent main body 1,
1 butt against each other, the elongated holes 9 and 9 intersect in an X shape, and the widths of the elongated holes 9 match. Subject 1
Even if the bolts are slightly shifted up or down or back or forth due to manufacturing errors or some kind of obstacle, they will always match.
2 can be inserted extremely easily, speeding up the connection work and shortening the construction period. Therefore, since the adjacent main bodies 1, 1 are connected by connecting fittings 6, 6 with bolts 12 and nuts 13, the main bodies 1, 1 are firmly connected, and individual blocks do not protrude due to disturbances due to ground subsidence or vibration. There's nothing to do. In addition, in the present invention, since the vertical part 2 and the horizontal part 3 are provided with protrusions 4 and 5,
A gap is created between the sides of the main body 1, and when it rains, water contained in the earth and sand is discharged to the outside through this gap, which reduces the earth pressure generated on the back side of the main body 1 and prevents the backfill earth and sand from softening. As a result, the collapse of the block pile is prevented, a strong retaining wall can be constructed forever, and the present invention has the effect of being inexpensive.

If the connecting fittings 6 are welded to the reinforcing bars 11 buried inside the main body 1, the connecting fittings 6 can be securely attached to the main body 1, thereby making the retaining wall even stronger. Moreover, if the openings 10 are filled with mortar after connecting the connecting fittings 6, 6 with the bolts 12 and nuts 13, corrosion of the bolts 12 and nuts 13 can be prevented.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Fig. 1 is a slope view, Fig. 2 is a side view seen from the opposite side, Fig. 3 is a front view of the products of this invention side by side, and Fig. 4 is a side view from the opposite side.
5 is a partially enlarged perspective view showing the connected state, FIG. 6 is a partially enlarged side view, and FIG. 7 is a partially enlarged longitudinal sectional front view showing the connected state. 1...Main body, 2...Vertical part, 3...Horizontal part,
4, 5...Protrusion, 6...Connection fitting, 7...Center portion, 8...Both pieces, 9...Elongated hole, 10...Opening portion.

Claims (1)

[Scope of utility model registration request] Protrusions 4 and 5 are provided at appropriate positions on one side of the vertical part 2 and the horizontal part 3 of the main body 1 having an L-shaped cross section, and the inside of the protrusion 4 of the vertical part 2 and the upper corner of the protrusion 5 of the horizontal part 3 are provided. Both pieces 8 of the U-shaped connecting fitting 6 are buried in the hole, the center part 7 thereof is flush with the outer surface of the protrusions 4 and 5, and a slanted elongated hole 9 is provided in the central part 7. A retaining wall block characterized in that an opening 10 is provided in the main body 1, and the retaining wall block is embedded in the other sides of the vertical part 2 and horizontal part 3 of the main body 1 at positions symmetrical to the connecting fittings 6 on one side.