JPS6111379Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a level adjuster for floor impact countermeasures aimed at reducing floor impact noise of buildings and improving vibration isolation effects.

For example, in apartment complexes, there is a need for space for plumbing such as drain pipes and water pipes under the floor, so the floor is often raised to create an appropriate space between it and the concrete surface.

However, in the Floor Impact Sound Insulation Classification Table of the Architectural Institute of Japan's Recommended Standards for Acoustic Performance, concrete with carpet etc. directly attached has a floor impact sound rating of L-55 due to tires; Those that have been raised have dropped one rank to L-60 due to the effect of structural materials or space amplification.

By the way, according to the ``floor sound insulation rating table'', the evaluation of this in apartment buildings is that the former is grade 2 (acceptable), while the latter is grade 3 (minimum).

This idea was made to solve the above situation, and by combining a pair of level adjustment pieces and using them under the raised floor, the floor impact sound rating is L-60.
The object of the present invention is to provide a level adjuster for floor impact countermeasures that is improved to L-55 or higher, has easy level adjustment, has good workability, is inexpensive, and does not shift in the width direction.

An embodiment of this invention will be described below with reference to the drawings.

FIG. 1 shows one piece 11 of this embodiment, in which two inclined surfaces 12 having a step on the upper surface 12 are shown.
a, 12b, and these inclined surfaces 12a, 12
b has a plurality of sawtooth-shaped irregularities 13a, 13;
b is formed. In the figure, reference numeral 14 denotes a central portion, that is, a vertical surface formed between the inclined surfaces 12a and 12b and connecting these inclined surfaces 12a and 12b, with the inclined surface 12b being formed at a higher position than the inclined surface 12a. .

The elemental piece 11 has a generally wedge-shaped hexahedron shape as a whole, and is made of an elastic material such as rubber.

FIG. 2 shows the other piece 21, in which 22 is an upper surface, 22a and 22b are two inclined surfaces provided on this upper surface, 23a and 23b are a plurality of sawtooth-shaped unevenness, Reference numeral 24 denotes a vertical surface formed at the center, that is, between the inclined surfaces 22a and 22b so as to connect these inclined surfaces 22a and 22b, and the inclined surface 22a is formed at a higher position than the inclined surface 22b. There is. The fact that the elemental piece 21 has a generally wedge-shaped hexahedral shape as a whole and is made of an elastic material such as rubber is different from the elemental piece 1.
This is the same as in case 1. In the embodiment shown in FIGS. 1 and 2, these pieces 11 and 21 are combined to form a level adjustment body. That is, during construction, for example, as shown in Fig. 3, first one of the pieces 11 is fixed to the concrete surface 1 with nails or adhesive, and then the subfloor of the main drawer 2 and joist 3 is leveled to the required level. will be constructed.

Next, the other piece 21 is turned over in the gap between the concrete surface 1 and the large drawer 2, and the thin part side and wall of the other piece 21 are The piece 21 is press-fitted from the thinner side while applying a pressing force so that the thicker side faces each other. In this way, elemental piece 11,
Since 21 is made of an elastic material, it is inserted while being deformed by its elastic force, and at the limit of pressure, the sawtooth-like unevenness 13a, 23a, 13b is formed.
and 23b are engaged with each other, and the vertical surface 14
and 24 are in contact with each other, the pieces 11, 2
1 are stacked on top of each other to securely support the joists 3 and 2.

At this time, the sawtooth-like unevenness 13a, 13b, and 23a23b on the element pieces 11, 21 have directionality and can be deformed and inserted when pushed in, but when pulled out, the unevenness 13a, 1
3b and 23a23b are shaped to prevent this. Furthermore, by applying adhesive to the inclined surfaces 22a and 22b of the elemental piece 21 before inserting it and integrating it with the elemental piece 11 after insertion, support can be made even more reliable.

Finally, finish the plywood board 4 on the upper surface of the joist 3.

In addition, when using the anchor bolt 5 to fix the main puller 2 as shown in FIG.
After passing through the cap and covering the top with a vibration-proof cap 7, it is tightened with a nut 8.

Furthermore, this adjustment body can be used not only in the case shown in FIG. 3 or 4, but also by using, for example, a relatively thick integral plate-like material in the parts corresponding to the main drawer 2, the joist 3, and the plywood board 4. It can also be used when supporting, or when constructing a concrete floor surface on a base material such as a deck plate.

This level adjuster for floor impact countermeasures can be easily installed by fixing one piece as described above and press-fitting the other piece between this piece and, for example, the flooring. It has the advantage of being simple and easy to install. Furthermore, since the pair of pieces are made of an elastic material, they deform during press-fitting and can easily change the engagement position, making it easy to finely adjust the level.

Especially in this level regulator, a pair of elemental pieces 1
1 and 21, the vertical planes 14 and 2
4 are in contact with each other and act as a stopper, so that the pieces 11 and 21 can be reliably supported without shifting. In the case of a pair of pieces each having only one inclined surface, when they are joined, they may shift in the width direction or the center lines may intersect, but this level adjustment body In this case, by having the vertical surfaces 14 and 24, there is no such fear and reliable holding can be achieved.

Furthermore, this level adjuster has the advantage that the amount of deflection of the floor can be easily adjusted by changing the hardness of the elastic material used for the pieces and the number of pieces installed. In particular, this level adjuster has the advantage of significantly improving floor impact sound performance.

According to the inventor's experiments, two cases were found: one using a 6-tatami Western-style room and placing the subfloor directly on the concrete surface, and the other using a level adjuster of this invention with a rubber hardness of 55° to 85° placed under the subfloor. When compared, the former has a weight floor impact sound rating of L60, while the latter has a result of L55 or above this. In this case, it can be seen that even though a space is formed, the improvement is at least one rank higher.

Therefore, since it is possible to block the transmission of shocks from above and below, it is possible to eliminate the discomfort caused by the transmission of shocks from the floors above or below, even in the case of apartment buildings, and to prevent the occurrence of troubles due to this. It can be resolved.

Next, in the embodiment shown in FIG. 5, as shown in FIG.
A, 32b, 32c, by creating second level inclined surfaces 32d, 32e, recessed portions 34d, 34e.
, and a plurality of serrated projections and recesses 33a to 33e are formed on these inclined surfaces. Therefore, overlapping surfaces that connect these inclined surfaces are formed between adjacent inclined surfaces of each of the inclined surfaces 32a to 32e.

This embodiment has the same configuration for the element piece 31a. A level adjustment body is constructed by combining the elemental pieces 31b as shown in FIG.
Since e is in mesh and the vertical surfaces are in contact,
Support can be made even more reliable. In this embodiment, it goes without saying that the level can be finely adjusted by changing the engagement state of the unevenness.

Note that this invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without changing the gist.

Further, the material of the piece is not limited to rubber, but other elastic materials such as felt or glass wool can be used.

Furthermore, auxiliary fittings 40a to 4 as shown in FIG.
By using 0c, the usage of this level adjuster can be expanded.

Further, in the above description, the adjustment body is mainly used for height adjustment, but it goes without saying that this invention can be applied to other spacings such as in the lateral direction.

As mentioned above, according to this invention, by combining a pair of level adjustment pieces and using them under the raised floor, the floor impact sound rating of L-60 can be adjusted to
It is possible to provide a level adjuster for floor impact countermeasures that is improved to -50 or more, is easy to adjust, has good workability, is inexpensive, and does not particularly shift in the width direction.

[Brief explanation of the drawing]

Figures 1 a to c show one piece of the first embodiment of this invention, in which a is a plan view, b is a front view, and c
2 is a side view, FIGS. 2 a to 2 c show the other piece of the first embodiment of this invention, in which a is a plan view, b is a front view, c is a side view, and FIGS. 3 and 4. are an explanatory diagram of the state in which the first embodiment is constructed, and the fifth embodiment is an explanatory diagram of the construction state, respectively.
Figures a and b show the second embodiment of this invention, in which a is a plan view of the elemental piece, b is a side view of a pair of elemental pieces combined, and Figures 6a to c are respectively this It is an explanatory view showing a state where an auxiliary metal fitting is attached to a level adjustment body. 1... Concrete surface, 2... Large pull, 3... Joist, 4... Plywood board, 5... Anchor bolt, 6
... Hole, 7 ... Vibration isolation cap, 8 ... Nut, 1
1, 21...Elementary piece, 12, 22...Top surface, 12
a, 12b, 22a, 22b...slanted surface, 13
a, 13b, 23a, 23b... unevenness, 14, 2
4...Vertical surface, 31a, 31b...Elementary piece, 32...
...Top surface, 33a-32e...Slope surface, 33a-3
3e...Irregularities, 34a, 34e...Recessed portions, 40
a~40c...Auxiliary metal fittings.

Claims (1)

[Claims for Utility Model Registration] (1) A device having a plurality of sloped surfaces with steps, and a vertical surface that connects the adjacent sloped surfaces, and the overall shape is a substantially wedge-shaped hexahedron. It is made of a pair of elemental pieces made of an elastic material such as rubber and has a plurality of parallel sawtooth-like unevenness formed on each of the inclined surfaces, and one of the pair of elemental pieces. Turn the inclined surface of each piece over so that the thick side and thin side of one piece are facing the thin side and thick side of the other piece, respectively. The above 1.
A level adjustment body for floor impact countermeasures characterized by overlapping and joining a pair of pieces. (2) The level adjuster for floor impact countermeasures as set forth in claim 1, wherein the inclined surface having the steps is composed of two pieces. (3) The above-mentioned sawtooth-shaped unevenness has directionality and has a shape that allows it to slide against the unevenness of the other element from one direction, but is locked and cannot slide from the other direction. A level adjuster for floor impact countermeasures according to claim 1 or 2 of the utility model registration claim, characterized in that: