JPH0416844Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is designed to be laid on a floor slab by being regularly connected with blocks of the same shape and pressed against mortar. This invention relates to a base material block on which flooring materials such as carpets are laid, and which is mainly used as a heat insulating material.

[Conventional technology]

As this type of floor base material block, for example, those shown in FIGS. 4 and 5 are known (see Japanese Patent Application Laid-open No. 64955/1983).

This block 1 is formed into a rectangular shape by foaming a synthetic resin, etc., and has step portions (joint joint portions 2) formed on two adjacent sides that mesh with other blocks symmetrically on the front and back. A pair of crosspieces 3 for fixing the floorboards are embedded in the lower part, and a cross-shaped groove 4 of constant depth is formed in the lower part. This groove 4 is used for piping.

Then, as shown in FIG. 6, mortar 5 made of cement or resin is placed, for example, in the form of dumplings, on the floor slab 6 at required intervals, and the lower surface of the block 1 is placed on this mortar 5. Press the
The blocks are regularly and densely laid while meshing with other blocks at the joint 2.

In this case, the blocks 1 are pressed against each other so that they are flat, and this pressing of the blocks 1 crushes the mortar 5 and spreads it on the bottom surface 7 of the blocks and in the groove 4, and the block 1 is fixed to the floor slab 6. .

After that, lay the floorboard 9 on the block 1, and
They are fixed by driving fasteners such as nails into them.

[Problem that the invention attempts to solve]

By the way, regarding this conventional block 1,
Blocks 1 may be separated from each other, or adjacent blocks 1 may
There was a problem that it would sink or rise against the surface.

This is because, as shown in Fig. 6, the blocks are only joined at the joining joint part 2, so the binding force in the vertical direction and both directions is weak, and the bottom surfaces of the blocks and the bottom surfaces of the grooves are flat. Therefore, when the blocks are pressed, the mortar tries to spread toward the inside of each block (direction R in the diagram), but since the mortar sticks to the blocks, its frictional resistance prevents the blocks from moving. This is because the object moves in accordance with the .

In addition, to make the blocks flat, push the ends of the blocks or press the joints between the blocks, but since the joints between the blocks are weak, the blocks tend to tilt (for example, in the Q direction in the figure). This is because they tend to be staggered in the vertical direction.

Therefore, the technical problem of the present invention is to strengthen the bond between the blocks.

[Means for solving problems]

The technical means of the present invention to solve such problems is to form grooves that communicate with the adjacent blocks on the lower surface that is pressed against the mortar, and to form grooves on the joint surface side of the adjacent blocks. A wall is formed at the end, and the end of the groove is made shallow.

[Effect]

According to this means, since the wall portion is formed, the peripheral edge of the block has high rigidity, is strong against loads, and is less likely to collapse.

Also, when blocks are connected to other blocks and pressed against mortar and laid regularly and densely, the mortar is pushed against the bottom of the shallow groove and spreads, but when it reaches the part where no wall is formed, It wraps around the inside of the wall and swells toward the bottom of the general part of the groove. The wall portions of adjacent blocks are held together by this raised portion, thereby making the joint between the blocks strong.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS A floor base material block according to an embodiment of the present invention will be described below based on the accompanying drawings.

As shown in FIG. 1, block B according to the embodiment
is formed into a rectangular shape by foaming a synthetic resin, and has stepped portions (joint joint portions 11) that mesh with other blocks symmetrically on two sides adjacent to each other, front and back.
A pair of crosspieces 12 for fixing the floorboards are embedded in the upper surface, and a plurality of grooves 13 that are approximately U-shaped and intersect vertically and horizontally are formed in the lower surface. It is formed into a protrusion shape with a small area.

The end portion 13a of the groove 13 is provided with a wall portion 14 and formed shallowly, and the end portion 13a constitutes a shallow groove portion 15, and the general groove portion inside the wall portion 14 constitutes a deep groove portion 16. There is. and shallow groove part 15
A stepped portion 17 is formed between the deep groove portion 16 and the deep groove portion 16 . In addition, the bottom surface 18 has a plurality of small grooves 19 in the form of stripes.
However, three small grooves 20 passing through the shallow groove portion 15 are further carved around the bottom surface 18.

Therefore, according to this embodiment, since the wall portion 14 is formed, the peripheral edge of the block B has a high rigidity, which makes it strong against loads and also It is less likely to collapse, preventing damage during installation, transportation, etc.
It has become particularly effective in the case of foamed resin.

Also, when laying block B, use cement or resin mortar 2 as shown in Figure 2.
1, for example, in the shape of a dumpling, and install it on the floor slab 22 at required intervals, press the lower surface of the block B onto the installed mortar 21, and attach it to the other block B at the joining joint 11. Lay regularly and densely while interlocking.

In this case, first, the bottom surface 18 of the block B comes into contact with the mortar 21, and since the bottom surface 18 is relatively small, it is buried in the mortar 21, and the mortar 21 pushed away by this is buried in the deep groove part 16.
Alternatively, it enters into the shallow groove portion 15.

Next, paying attention to a pair of adjacent blocks B, as shown in FIG. The deep groove portions 16 are pushed and widened along the bottom surface 18 of each. Then, when pressed further, the stepped portion 1
Mortar 21 that spreads deeper into the groove 16 than 7.
is raised along the step portion 17 toward the bottom surface 16 a of the deep groove portion 16 . As a result, the wall portion 14 is formed by the raised portion 23 of the mortar 21.
It will be held in place. Therefore, when pressed further, the blocks B try to move away from each other in accordance with the movement of the mortar 21, but since they are pressed down by the above-mentioned raised portion 23, their movement in the plane direction is restrained, and they move apart. situations that occur are prevented.

Furthermore, in this case, the extra mortar 21 pushed out from the bottom surface 18 of the peripheral edge of block B enters the shallow groove 15, and since the shallow groove 15 communicates with the shallow groove 15 of the adjacent block B, the shallow groove 15 , the extruded extra mortar 21 cannot escape and blocks, compared to a case where the end portion 13a of the groove 13 is completely closed with a wall portion and no shallow groove portion 15 is formed. This prevents the block from entering the joint surface of B and separating the blocks from each other.

Furthermore, when making the flatness of block B, the end portion of block B is pushed or the joining part of blocks B is pushed. In this case, even if block B is inclined (for example, in the Q direction in the figure), Block B held down by the raised portion 23 of
Since the joints between the blocks B are strong, they are difficult to rotate, and the situation in which the blocks B are alternated in the vertical direction is suppressed.

Furthermore, since small grooves 19 and 20 are carved in the bottom surface 18, movement in the surface direction is further suppressed by the mortar 21 that has entered into these small grooves 19 and 20.

Even when the mortar 21 is hardened, the wall portion 14 is restrained by the raised portion, and the grooves 13 are formed vertically and horizontally, so that the mortar 2
Since block B is difficult to move and maintains the required flat state, the floor plate 24 is placed on top of block B as shown in FIG. The laying can be carried out without any trouble when laying the crosspieces 12 and driving fasteners such as nails into the crosspieces 12 to fix them. Note that 25 is a carpet laid on the floorboard.

In the above embodiment, a large number of grooves were provided, but
However, the present invention is not limited to this, and the wall portion may be formed in a cross-shaped groove as shown in the conventional example.

[Effect of idea]

As explained above, according to the floor base material block of the present invention, the wall portion has a high rigidity around the block's periphery, which is strong against loads and is less likely to collapse, resulting in damage during installation, transportation, etc. is prevented.

Also, if blocks are laid by pressing against mortar while connecting them to other blocks, the walls of adjacent blocks will be sandwiched by the raised part of the mortar that has gone around the inside of the wall. This strengthens the bond between the blocks, thereby preventing blocks from separating from each other, or from sinking or rising relative to neighboring blocks.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the configuration of a floor base material block according to an embodiment of the present invention, FIG. 2 is a sectional view showing the state of laying the floor base material block according to the embodiment together with its function, and FIG. 3 4 and 5 are back and side views showing an example of a conventional floor base material block, and FIG. 6 is a sectional view showing its defects. B...Floor base material block, 13...Groove, 13
a...End part, 14...Wall part, 15...Shallow groove part.

Claims (1)

[Scope of utility model registration request] In a floor base material block that is regularly connected to blocks of the same shape and pressed against mortar and laid on a floor slab, and is formed by foaming synthetic resin, the lower surface that is pressed against the mortar communicates with the adjacent blocks. 1. A floor base material block characterized in that a groove is formed, and a wall is formed at the end of the groove on the joint surface side with an adjacent block to make the end of the groove shallow.