JPH0532586Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a level adjustment device for attaching a subfloor material of a constant height to a concrete surface or the like.

(Prior art and its problems) Conventionally, as shown in FIG. 1, this type of adjustment device has an adjustment nut 2 fixed at the center of a pedestal plate 1 and protruding from one side. Fix the pedestal plate 1 to the back surface of the flooring material 3 by inserting it into the through hole 4, and then fit a screwdriver (not shown) into the groove 6 provided at the top of the adjustment bolt 5, which is screwed into the adjustment nut 2. Adjust the flooring material 3 accordingly.
The height was adjusted.

However, when using this method, it is necessary to ensure that the top of the adjustment bolt 5 does not protrude above the flooring material 3 even when the flooring material is installed at its lowest level.
In addition, even when the flooring material 3 is installed at the highest level, the degree of threading between the adjustment bolt 5 and the adjustment nut 2 must be 1 cm or more, so in the case of a normal flooring material 3, the adjustment range with the adjustment bolt is an extremely narrow range of about 10 mm. For this reason, it is difficult to deal with variations in the concrete surface, and it is necessary to frequently replace adjustment bolts with different lengths, resulting in poor work efficiency.

(Means for solving the problem) This proposal was researched to eliminate the drawbacks of the conventional adjustment device as described above.The adjustment nut is made removable and protrudes below the flooring material, so that the adjustment bolt can be used. The purpose is to widen the adjustment range, reduce the need for replacing adjustment bolts as much as possible, and make the construction work of the subfloor more efficient.

To explain the present invention with reference to the illustrated embodiment, the nut mounting bracket is made up of a nut mounting bracket 10, an adjustment nut 11 that can be fitted into and removed from the mounting bracket 10, and an adjustment bolt 12 that can be screwed into the adjustment nut 11. 1
0 consists of an insertion hole 14 that can be penetrated through the center of the pedestal plate 13 and a guide plate 15 fixed to the back side of the pedestal plate 13. A slide notch 17 with a female portion 16 is provided, and a gap groove 18 is provided between it and the base plate 13. An insertion rib 19 is provided on the upper edge of the insertion hole 14 so that it can be freely inserted into a through hole in the flooring material, which will be described later.Also, guide plates 15 are provided on both side edges of the base plate 13 in both directions of the slide cut 17.
A reinforcing rib 20 with a height of .

The outer shape of the adjustment nut 11 is the same as that of the female part 16 for preventing rotation.
A male part 21 corresponding to the
is provided so that it can be freely inserted into the gap groove 18, and the adjustment nut 11 is aligned with the insertion hole 14 at the position of the rotation preventing female part 16 of the slide notch 17.

The adjustment bolt 12 is provided with an engaging groove 23 at its top and a support base 24 made of a rubber cushion or the like at its lower end.

In the figure, 25, 25... are auxiliary cuts provided in the guide plate 15 at positions corresponding to the outer periphery of the collar portion 22,
The outside of the auxiliary cut 25 is used as a pressing part 26, and the collar part 22 of the adjustment nut 11 is made into a slide cut 17.
After fitting the pressing part 26 into the gap groove 18 of the pedestal plate 13
to prevent the adjustment nut 11 from falling off. 2
7, 27... are auxiliary holes.

(Function) The present invention is realized as described above. To use this, first, the pedestal board 13 is fixed with adhesive at a factory where the flooring material 28 is produced, and A through hole 29 is bored in the through hole 29, and the insertion rib 19 is inserted into the through hole 29 to connect the through hole 29 and the insertion hole 1.
Match 4. This is carried to the construction site for construction. At the construction site, the flange 22 of the adjustment nut 11, onto which the adjustment bolt 12 has been previously screwed, is inserted into the gap groove 18, and the adjustment bolt 12 is slid into the notch 17.
After pressing the male part 21 into contact with the female part 16 for preventing rotation, the pressing part 26 of the guide plate 15 is pushed into the pedestal plate 13.
to prevent the adjustment nut 11 from falling off. After this, lay it on the concrete slab surface, insert a screwdriver through the through hole 29, engage the engagement groove 23, and adjust the adjustment bolt 1.
Turn 2 to adjust the level.

(Effects) As mentioned above, in this case, the nut mounting bracket and the adjusting nut are provided separately, and the adjusting nut is attached so that it can be freely inserted into the nut mounting bracket.
Even if the nut mounting bracket is attached to the flooring material, it is economical because it does not take up much space during storage and transportation, and the work of inserting the adjustment nut at the site is done by inserting the flange 22 into the gap groove and moving the slide notch. It can be easily done with a chisel, and since the adjustment nut protrudes below the subfloor material, the adjustment range of the adjustment bolt is wider than the thickness of the subfloor material, and can be adjusted to the height of most concrete slabs. The level can be adjusted without replacing the bolts, increasing work efficiency.

[Brief explanation of the drawing]

FIG. 1 is an explanatory sectional view of a conventional level adjusting device, FIG. 2 is an explanatory sectional view of the level adjusting device of the present invention, and FIG. 3 is an explanatory bottom view of a nut mounting bracket. 10 is a nut mounting bracket, 11 is an adjustment nut, 1
2 is an adjustment bolt, 13 is a pedestal plate, 14 is an insertion hole,
15 is a guide plate, 16 is a rotation preventing female part, 17 is a slide notch, 18 is a guide groove, 21 is a male part, 22
is the tsuba.

Claims (1)

[Scope of utility model registration request] Consists of a nut mounting bracket, an adjustment nut that can be fitted into and removed from the mounting bracket, and an adjustment bolt that can be screwed into the adjustment nut.The nut mounting bracket is fixed to an insertion hole that passes through the center of the pedestal plate and to the back side of the pedestal plate. The guide plate is provided with a slide notch with a female part for preventing rotation at the innermost part at a position corresponding to the insertion hole, and a gap groove is provided between the guide plate and the pedestal plate,
The adjustment nut has a male part whose outer shape corresponds to the female part for preventing rotation, and has a flange at the tip so that it can be freely inserted into the gap groove, and a support is provided at the lower end of the adjustment bolt to level the flooring material. Adjustment device.