JPH0745634Y2 - Building blocks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention mainly relates to a building block constituting a retaining wall on a slope.

<Prior Art> As a concrete block for construction, there is one disclosed in Japanese Utility Model Publication No. 63-23473 proposed by the present applicant.

This building block has a structure in which vertical reinforcing bar insertion holes are formed on the left and right sides of the block main body, and an inspection hole is formed in the block main body that communicates with the reinforcing bar insertion hole and is open to the surface.

This inspection hole can be used to check the condition of the joints of the vertical reinforcing bars when stacking blocks in multiple stages, and especially to check whether the interlocking concrete is filled up to the reinforcing bar insertion hole of the lower block. it can.

<Problems to be solved by the invention> However, in the above-mentioned conventional block, since the inspection holes are located on the left and right of the center of the block body, the reinforcing bars and metal nets are placed inside the block body for reinforcement. Reinforcing holes must be avoided when the material is embedded. Therefore, when molding the block, it is necessary to sufficiently consider the arrangement of the reinforcing bars and the net material of the metal in the frame, and therefore the productivity is extremely poor and it is not suitable for mass production.

Also, when the block is manufactured, the core for the inspection hole is projected on the bottom of the formwork, and if concrete is poured and cured, the core must be pulled out before demolding, which is extremely troublesome and wasteful. It requires working time and more workers than necessary.

Furthermore, if there is a through hole in the center of the block body, the strength of the block body will decrease.

<Means for Solving the Problems> The present invention has been proposed in view of the above, and in the middle of the thickness direction of the block main body, vertical reinforcing bar insertion holes are formed on the left and right,
On the upper edge or the lower edge of the block body, there is provided an inspection groove whose rear end communicates with the reinforcing bar insertion hole and whose front end opens on the surface of the block body. It is characterized in that it is tapered so that the width becomes gradually wider toward the opening.

<Embodiment> Hereinafter, the present invention will be described in detail based on an embodiment of the drawings.

1 to 4 show a first embodiment of the present invention, in which an upper end surface 2 of a thick block body 1 has a cross section along the length direction in the middle of the thickness direction. A semi-circular ridge 3 is formed, and a groove 5 having a semi-circular cross section is formed on the lower end surface 4 into which the ridge 3 is fitted.

Further, on the left and right side end surfaces 6 of the block body 1, groove portions 7 which are substantially the same as the groove portions 5 described above are formed.

In the block body 1 having the above-described configuration, longitudinal reinforcing bar insertion holes 8 are formed in the middle of the block body 1 in the thickness direction. The left and right reinforcing bar insertion holes 8 are formed in the block body 1
From each side end surface 6 of the block main body 1, the block body 1 is provided with a length of ¼ of the lateral width, and the upper end is tapered with the lateral width being longer than the lower end.

An inspection groove 9 having a rear end communicating with the reinforcing bar insertion hole 8 and a front end opening on the surface of the block body 1 is formed on the upper edge of the block body 1.

In the first embodiment of the present invention, the inspection grooves 9 are formed on the left and right sides of the upper edge at the position corresponding to the reinforcing bar insertion hole 8 and have a groove shape recessed from the upper end surface 2. The left and right side surfaces of each inspection groove 9 are tapered so that the width gradually increases from the bottom surface toward the opening.

A case of stacking a retaining wall using the block main body 1 configured as described above will be described with reference to FIGS. 5 and 6, and a consolidation block 11 in which a vertical rebar 10 having a certain length is extended upward.
Is placed on the cobble stone a, and the floor block 12 inserted into the vertical reinforcing bar 10 is installed on the top surface of the root block 11.

Then, on the upper surface of the floor block 12, the lowermost block main body 1 in which the vertical reinforcing bar 10 is inserted into the reinforcing bar insertion hole 8 is installed side by side in a lateral direction. The block body 1 is installed in the same manner as the lowermost block body.

The bottom block body 1 and the second block body 1 from the bottom are laterally displaced from each other by half the width of the block body 1.

When the block bodies 1 are stacked in order as described above,
Since the block body 1 may be piled up above the upper end of the vertical reinforcing bar 10, the auxiliary vertical reinforcing bar 10 'is added to the vertical reinforcing bar 10 and then the block main body 1 is piled up again.

When the block main bodies 1 are piled up to the required height in this way, whether or not the vertical reinforcing bars 10 are surely inserted into the reinforcing bar insertion holes 8 by the inspection groove 9 of each block main body 1 and the joint portion of the vertical reinforcing bars 10. Check if there is instability or discontinuity, and if there is any defect, repair it. If there is no defect, insert into the rebar insertion hole 8 of each block body 1 that communicates in series in the vertical direction. Fill the stuffed concrete from the top to fill it. Then, after confirming that the reinforcing bar insertion hole 8 of the lowermost block body 1 is also filled with concrete, each inspection groove 9 is filled with concrete or mortar and closed.

By stacking the block main bodies 1 in this manner, the vertical reinforcing bars 10 are surely inserted into the reinforcing bar insertion holes 8 of each block main body 1, and a retaining wall having a strength as designed can be constructed.

In addition, the block main body 1 having the inspection groove 9 is used only at the position where the vertical reinforcing bar 10 has the joint, and the block main body 1 not having the inspection groove 9 is stacked at the position where the vertical reinforcing bar 10 has no joint. You may

7 and 8 show a second embodiment of the present invention in which inspection grooves 9 are formed on the left and right edges of the lower edge of the block body 1. Each inspection groove 9 is the same as the first embodiment described above. The rear end communicates with the reinforcing bar insertion hole 8, the front end opens on the surface of the block body 1, and the left and right side surfaces are tapered so that the width gradually increases from the bottom surface of the groove toward the opening. Therefore, also in the second embodiment, the retaining walls can be stacked in the same manner as in the first embodiment, and in the stacked state, the vertical rebars 10 in each inspection groove 9 are inspected and the filling concrete is in a state of being packed. Can be confirmed.

9 and 10 show a third embodiment of the present invention.
When the inspection groove 9 is formed only at one place so that the rear end of the block body 1 communicates with the reinforcing bar insertion hole 8 on one side, FIGS. 11 and 12 show the fourth embodiment of the present invention. An example is shown, in which the inspection groove 9 is formed only at one location on the lower edge of the block body 1 so that the rear end communicates with the one reinforcing bar insertion hole 8.

Further, FIG. 13 shows a fifth embodiment of the present invention, in which an inspection groove 9 whose rear end communicates with one reinforcing bar insertion hole 8 is formed in the upper edge of the block body 1 and the other is formed in the lower edge. An inspection groove 9 having a rear end communicating with the reinforcing bar insertion hole 8 is formed.

Also in each of the above-described embodiments, the left and right side surfaces of each inspection groove 9 are tapered so that the width gradually increases from the bottom surface of the groove toward the opening, and one side of the inspection groove 9 is provided at the upper edge or the lower edge. Even when the block body 1 is formed so as to communicate with the reinforcing bar insertion hole 8, when the block main body 1 is stacked, the upper and lower block main bodies 1 are displaced from each other.
10 can be surely inspected.

In the second to fifth embodiments described above, the reference numerals not described have the same configurations as the same reference numerals in the first embodiment, and thus the description thereof will be omitted.

<Effects of the Invention> In short, according to the present invention, vertical reinforcing bar insertion holes are formed in the middle of the block body in the thickness direction, and one or both of the upper edge and the lower edge of the block body are provided. Has
A check groove is provided so that the rear end communicates with the reinforcing bar insertion hole and the front end opens on the surface of the block body, and the left and right side surfaces of the check groove are gradually widened from the bottom of the groove toward the opening. Since it is tapered, it is not necessary to take special consideration in manufacturing even when reinforcing reinforcing bars, metal nets, etc. are embedded inside the block body, and a core is used during manufacturing. Since it is not necessary, it is possible to use an extremely simple manufacturing process as in the conventional case, and the productivity is not hindered. Moreover, since the left and right side surfaces of the inspection groove are tapered so that the width gradually increases from the bottom surface of the groove toward the opening, when the block body is manufactured, the protrusion corresponding to the inspection groove is formed on the inner surface of the formwork. It is possible to easily manufacture the block main body with the inspection groove just by providing the portion, and the tapered width of the inspection groove makes the lateral width wider, making it easier to see the inside of the reinforcing bar insertion hole and making it easier to see the joints and spaces between the vertical reinforcing bars. It is possible to reliably check the condition of the stuffed concrete. In addition, since the inspection groove is tapered, concrete etc. can be reliably and quickly packed after the construction of the retaining wall to secure the strength, so that the retaining wall with the predesigned strength can be constructed reliably. It is possible to provide a block with high intellectual value.

[Brief description of drawings]

1 is a perspective view showing a first embodiment of the present invention, FIG. 2 is a partially cutaway front view of the same, FIG. 3 is a partially cutaway plan view of the same, and FIG. Is a sectional view taken along line IV-IV in FIG.
FIG. 5 is a partially cutaway front view of a retaining wall, FIG. 6 is a vertical side view of the same, and FIG. 7 is a second view of the present invention.
FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7, and FIG. 9 is a front view showing a third embodiment of the present invention.
FIG. 10 is a sectional view taken along line X-X of FIG. 9, FIG. 11 is a front view showing a fourth embodiment of the present invention, FIG. 12 is a sectional view taken along line XII-XII of FIG. 11, and FIG. FIG. 8 is a front view of a fifth embodiment of the present invention. 1 is a block main body, 2 is an upper end surface, 4 is a lower end surface, 8 is a reinforcing bar insertion hole, 9 is an inspection groove, and 10 is a vertical reinforcing bar.

Claims (1)

[Scope of utility model registration request] 1. A longitudinally extending reinforcing bar insertion hole is formed in the middle of the block body in the thickness direction, and a rear end of the block body is inserted into one or both of the upper edge and the lower edge of the block body. An inspection groove communicating with the hole, the front end of which opens on the surface of the block body, is provided, and the left and right side surfaces of the inspection groove are tapered so that the width gradually increases from the bottom surface of the groove toward the opening. Building block.