JPH0336573Y2 - - Google Patents

Description

[Detailed explanation of the invention] <Industrial application field> This invention can be applied even if there are some undulations in the ground.
This invention relates to a flat concrete block equipped with a height adjustment device that allows adjustment of the height of the block being laid.

<Conventional technology> Traditionally, small concrete blocks have been used for construction on slopes, such as river banks.
With the development of civil engineering equipment, large concrete blocks like the one shown in Figure 6 have come to be used to improve construction efficiency. This large concrete block has an area equivalent to several blocks compared to its smaller size, so the work required for each large concrete block requires the same amount of work as several blocks at the same time. It has its advantages.

However, as shown in the figure, in the conventional large concrete block, legs b of a certain height are integrally molded on the lower surface of a flat block a (panel), and these legs are placed on a slope. c.
The construction method used was to pour backfill concrete onto the back side of Block A.

<Problem that the invention seeks to solve> However, in this construction method, crushed stones are laid on slope c, but leg b of block a
Since the slope c is always of a constant length, there is the inconvenience that the slope c itself and the crushed stones laid thereon must be leveled so that there are no undulations at all.

<Means for solving the problem> Therefore, this invention involves embedding a nut-shaped member with a screw hole in the surface of the block body, and embedding the nut-shaped member in the block body continuously at the position where the nut-shaped member is embedded. By drilling a long hole penetrating through the opposite surface, screwing a height adjustment screw into the nut-shaped member, and adjusting the protrusion length of the height adjustment screw from the block body. Even if there are some undulations in the ground, the block plane after installation is made to be flush.

<Example> Next, an example of a flat concrete block equipped with a height adjustment device according to this invention will be described based on a drawing. 1 is a block body, and 2 is a block buried in the surface of this block body 1. It is a nut-shaped member having a screw hole 3. 4 is a cap-shaped member for fixing this nut-shaped member 2, and 5 is a pipe that is fitted and connected to this cap-shaped member 4. This pipe 5 has a length that reaches almost the opposite surface of the nut-shaped member 2 in the block body 1, and communicates with the position where the nut-shaped member 2 is buried through the pipe 5, so that the block A long hole passing through the opposite surface of the main body 1 is formed. 6
is a height adjusting screw screwed onto the nut-shaped member 2, one end of which is rotatably connected to the support plate 7, and a prismatic portion 8 formed at the other end. This height adjusting screw 6 is to be the leg of the block body 1, so the combination of the height adjusting screw 6, nut-shaped member 2, cap-shaped member 4, pipe 5, etc. It is preferable to arrange them not only at one location in 1 but at four locations at appropriate intervals. In the drawing, numeral 9 is a hanging metal fitting having a screw hole 3', and numeral 10 is a reinforcing bar embedded in the block body 1.

Next, the method of forming the flat concrete block according to this invention will be described. Basically, any method may be used, but an example of the concrete block according to the above structure is shown in FIGS. In FIG. 3, 11 is a formwork, and 12 is the pipe 5 in this formwork 11.
This support has a trapezoidal cross-section with a hole and is installed in the part where the support 12 is located. By adsorption, the support 12 is fixed to the formwork 11. Then, on this support 12, a pipe 5 fitted into a cap-like member 4 to which a nut-like member 2 is fixed is erected. In this case, the height adjusting screw 6 may be already screwed on, or it may be screwed on after molding. In this way, formwork 1
All you have to do is pour concrete into 1 and mold it. After molding, the mold is removed, but at the time of demolding, the magnet 13 and support 12 remain attracted to the mold 11, and the support 12 forms a chamfered recess 14 in the block body 1. , this will continue to pipe 5.

<Function> However, when moving the block body 1 molded as described above, the height adjustment screw 6
The block body 1 can be moved as far as possible into the block body 1, a hanging metal fitting 9 can be screwed onto the prismatic portion 8, and the hanging metal fitting 9 can be used to lift it up with a crane or the like. After the moving work is completed, the slope 15 (as in the past, crushed stones are laid in advance on the slope 15 so that the support plate 7 at the tip of the height adjustment screw 6 faces downward). ). In this case, the height adjustment screw 6
The length of the protrusion may be uneven, or there may be undulations on the slope 15. Therefore, if left as is, the surface that will become the surface of the block body 1 will generally have a height difference between it and the adjacent one. Sometimes there are differences. Therefore, using a box range or the like, for example, fit this into the prismatic portion 8 at the other end of the height adjustment screw 6, and turn the height adjustment screw 6. Then, this height adjustment screw 6 moves up and down with the nut-shaped member 2 as a boundary, that is, the protrusion length of this height adjustment screw 6 from the block body 1 changes, and the surface of the block body 1 changes. can be adjusted.
When the block body 1 is made flush in this way, the construction is completed by pouring backfilling concrete and filling the pipe 5 of the block body 1 with mortar as usual. .

<Effects of the invention> As described above, according to the flat concrete block equipped with the height adjustment device according to this invention, the members that are to become the legs of the block body are screw rods, and the protrusion length with respect to the block body is adjusted by using screw rods. Even if there are some undulations on the slope, this can be offset, resulting in an improvement in construction efficiency. The above explanation has mainly been given by illustrating the use for construction on slopes, but for example, it can also be used for building interior and exterior walls, etc.
It can also be used as a variety of retaining walls, so it is not limited to slopes.

[Brief explanation of the drawing]

The drawings show an embodiment of a flat concrete block equipped with a height adjustment device according to this invention. Figure 1 is a sectional view showing the main part of the block body, and Figure 2 is a sectional view showing the main part of the formwork. 3 is a sectional view showing the main part in the molded state, Fig. 4 is a sectional view of the main part in the state where the hanging fittings are connected, Fig. 5 is a side view showing the construction state, and Fig. 6 is a sectional view showing the main part in the molded state. The figure shows a conventional example, of which A is a cross-sectional view of the main part of the block body;
B is a side view of the construction state. 1...Block main body, 2...Nut-shaped member, 3,
3'...screw hole, 4...cap-like member, 5...pipe, 6...
Height adjustment screw, 7... Support plate, 8... Prismatic part, 9
...Hanging fittings, 10...Reinforcing bars, 11...Formwork, 12...Supports, 13...Magnets, 14...Recesses, 15...Slopes.

Claims (1)

[Scope of utility model registration request] A nut-shaped member having a screw hole is buried in the surface of the block body, and a long hole penetrating through the opposite surface of the block body is continuously drilled at the position where the nut-shaped member is buried, and the nut-shaped member is buried in the surface of the block body. A flat concrete block equipped with a height adjustment device, characterized in that a height adjustment screw is screwed onto the member.