JPH02183046A - Floor panel - Google Patents

Abstract

PURPOSE:To improve lightweight and impact sound insulation characteristics by forming a soft and air flowable buffer layer, a non-softening air flowable layer capable of flowing the air discharged from the buffer layer side and a hard finish flooring layer together as a unit with a specific size. CONSTITUTION:A non-softening air flowable layer 3 capable of flowing the air discharged from a buffer layer 1 side is held between a soft and air flowable buffer layer 1 and a hard finish flooring layer 2 to form together as a unit. For the buffer layer 1, it is constituted of a soft and air flowable material such as nonwoven fabric or foam materials and others using synthetic, natural, glass and other fibers. For the finish flooring layer 2, a relatively hard material consisting of woody system or synthetic resin system is used. Further, for the air flowable layer 3, such a material capable of flowing the air discharged from the buffer layer 1 as thermoplastic hard urethane foam or a hard network and the like is used.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a floor panel used in a floor structure that is directly installed on a floor base such as a concrete slab.

(Conventional technology) The floor finish in conventional houses, especially apartment buildings such as condominiums, was generally constructed by pasting carpet directly onto the floor base such as a concrete slab.However, this carpet However, there are hygiene issues, such as the appearance of dust mites.

Under these circumstances, hard floor finishing materials such as wood-based materials that have a clean appearance and are easy to clean have recently attracted attention, and the need for them is increasing.

(Problem to be solved) However, with such relatively hard floor finishing materials, noise from upstairs, especially light floor impact sound, is transmitted to downstairs to a large extent, making sound insulation measures an important issue. .

Therefore, floor finishing materials in which a synthetic resin foam or the like is pasted on the back side have been proposed, but they have not yet achieved a performance level of sound insulation grade L-55 or higher, which is the level supplied by users. It has also been considered to use a thicker synthetic resin foam that satisfies the specified sound insulation requirements, but in this case the foam itself would become soft and furniture, etc., would sink if placed on top of it. It has problems such as being too large, feeling too soft underfoot and lacking in the texture of wood, and being prone to floor noise, so it has not been a sufficient deciding factor.

In view of the above-mentioned circumstances, it is an object of the present invention to provide a floor panel that is lightweight, has excellent impact sound insulation properties, has a hard feel, and is used to form a floor structure that does not generate floor noise. be.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a soft, air-permeable buffer layer that is placed directly on a floor base or serves as an intermediate layer, and a buffer layer that is provided on this buffer layer or is placed on a floor base. A non-flexible air circulation layer that is placed directly on top and can circulate air discharged from the buffer layer side, and a rigid air circulation layer that is placed on top of this air circulation layer or provided on the buffer layer. 3F! are integrally molded to a predetermined size.

[Effect]

In this invention, when the cushioning layer is compressed by impact, the air held within the cushioning layer is compressed and acts like a spring, making it impossible for the cushioning layer to fully exert its shock-absorbing effect. With this in mind, when the buffer layer is compressed, the air held therein escapes into the air flow layer. For example, even if an impact force is applied to the floor surface by dragging a chair, etc., the shock absorbing layer effectively generates a shock absorbing and vibration-proofing effect to effectively absorb and reduce the impact force. Improves sound isolation properties.

〔Example〕

Preferred embodiments of the present invention will be described below with reference to the drawings.

The first embodiment shown in FIG. 1 is a non-woven material that allows air discharged from the buffer layer 1 side to flow between the soft buffer layer N1 and the hard floor covering layer 2. It is shown that it is integrally molded with a flexible air flow N3 in between. 1st
Although not shown in the figure, the buffer layer 1 is placed directly on a floor base 10 such as a concrete slab. The buffer layer 1 is made of a material that is soft and has good air circulation, such as a nonwoven fabric or foam material using synthetic resin fibers, natural fibers, glass fibers, or other fibers. This buffer layer 1 contracts due to the impact force acting on the floor surface side, and absorbs and reduces the impact force by its shock absorbing and vibration-proofing effect. As the floor finishing material layer 2, a relatively hard material made of wood or synthetic resin is used. Further, the air circulation layer 3 is made of a material that can circulate the air discharged from the buffer layer 1, such as a thermoplastic hard urethane foam or a hard net-like body. In the first embodiment shown in FIG. 1, a slab of thermoplastic rigid urethane foam was used as the air circulation layer 3.

The thickness of the entire floor panel is preferably 50+n or less.

In the second embodiment shown in FIG. 2, the air circulation layer 3 is a hard net-like body constructed by assembling round bars made of synthetic resin material, metal material, etc. in a lattice shape.

In the third embodiment shown in FIG. 3, an air circulation layer 3 made of a hard network is disposed at the bottom layer, and a buffer layer 1 and a buffer layer 1 are arranged as intermediate layers.
A hard floor finishing material 2 is formed on this buffer FJl, and these three layers are integrally molded.

In the fourth embodiment shown in FIG. 4, a base plate 5 and a damping material 6 are provided between the floor finishing material layer 2 and the air circulation layer 3 of the second embodiment shown in FIG. 2, resulting in a total of five layers. Shown is the formation on the floor panel of the structure. Note that it is desirable that the base plate 5 be made of the same material as the floor finishing material layer 2.

The graph shown in FIG. 5 is based on the assumption that the entire thickness of the floor panel of the fourth embodiment shown in FIG. 4 is 50 mm or less, and the width is 50 to 30 mm.
0 u, the length is about 300 to 1800 mm, and a comparison is made between one selected from within this range and one of similar size but with the air circulation layer 3 made of a hard reticular body removed. The fourth embodiment is indicated by the symbol ■, and the one without the air circulation layer 3 is indicated by the symbol I. At this time, a rubber material was used as the damping material 6, and a veneer base plate was used as the base plate 5. Note that the damping material 6 is preferably formed of a polymeric material such as rubber, asphalt, or olefin. The graph shown in FIG. 5 shows the results of the floor impact sound level measured based on JISA1418, and a lightweight floor impact source was used as the impact source.

It can be seen that in the embodiment 1u11 of the present invention having the air circulation layer N3, the lightweight floor impact sound insulation performance is improved compared to that without the air circulation layer 3. The sound insulation grades in the graph, such as -40, are as follows.

In the fifth embodiment shown in FIG. 6, the air circulation layer 3 is constituted by a recess 2A formed on the lower surface of the floor covering layer 2. In this embodiment, the side surfaces of the floor finishing material layer 2 are cut out so that the panels can be fitted together in a concave-convex manner.

Such a phase-cutting process is also a preferable process in other embodiments. What is shown in FIGS. 7 and 8 shows a modification of the shape of the recess 2A in the fifth embodiment shown in FIG. 6, that is, a modification of the air circulation layer 3 formed here.

9 to 12 are also bottom views of the lower surface side of the finishing material layer 2, respectively showing modifications of the air circulation layer 3 shown in FIG. 6. The cross-hatched portions shown in FIGS. 9 to 12 constitute the air circulation layer 3.

The sixth embodiment shown in FIG. 13 has basically the same configuration as the fifth embodiment, but a damping material 6 is provided on the lower surface of the floor finishing material layer 2.
, and a base plate 5 is provided on the lower surface of the damping material 6, and a recess 5A is formed in the base plate 5 to form the air circulation layer 3.

The embodiment shown in FIG. 14 is a modification of the sixth embodiment shown in FIG. 13, in which a recess is also formed in the buffer layer 1 and communicated with the recess 5A of the base plate 5.

The graph shown in FIG. 15 is similar to the graph shown in FIG. 5, and the symbol ■ in the figure indicates the embodiment shown in FIG. An example is shown. As is clear from this graph, the present invention can improve the performance by two ranks compared to the case where the air circulation layer 3 is not provided.

〔effect〕

As explained above, according to the present invention, there is provided a soft and air-permeable buffer layer that is placed directly on the floor base or serves as an intermediate layer, and a buffer layer that is provided on the buffer layer or is placed on the floor base. A non-flexible air circulation layer that is placed directly on top and can circulate air discharged from the buffer layer side, and a rigid air circulation layer that is placed on top of this air circulation layer or provided on the buffer layer. Since the three layers are integrally molded to a predetermined size, if a floor structure is constructed using this floor panel, the impact sound insulation performance of the lightweight floor can be improved.

Also, lay a large number of such floor panels on a floor base such as a concrete slab.

Construction is also extremely easy.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing a first embodiment of the invention, FIG. 2 is a partially cutaway perspective view showing a second embodiment, and FIG. 3 is a perspective view showing a third embodiment. Fig. 4 is a partially cutaway perspective view showing the fourth embodiment, and Fig. 5 is the experimental result of lightweight floor impact sound isolation performance of the fourth embodiment of the present invention and one without an air circulation layer. 6 is a partially cutaway perspective view showing the fifth embodiment, FIGS. 7 and 8 are end views showing the deformation σII of the air circulation layer, and FIGS. 9 to 12 are graphs showing the air circulation layer. Bottom view of the floor covering layer showing various variants of the layer, 1st
Fig. 3 is a perspective view showing the sixth embodiment, Fig. 14 is a perspective view showing the seventh embodiment, and Fig. 15 shows the light floor impact sound of the seventh embodiment of the present invention and one without an air circulation layer. It is a graph comparing interrupting performance. 1...Buffer layer, 2...Floor finishing material layer, 3...Air circulation layer.

Claims (1)

[Claims] 1. In a floor panel that is installed directly on a floor base such as a concrete slab, a soft and air-permeable buffer layer that is placed directly on the floor base or serves as an intermediate layer; A non-flexible air circulation layer provided on the buffer layer or placed directly on the floor base and capable of circulating air discharged from the buffer layer, and a non-flexible air circulation layer provided on the air circulation layer. or a hard floor finishing material layer provided on a buffer layer, the three layers being integrally molded to a predetermined size. 2. The floor panel according to claim 1, wherein a rigid foam or a rigid mesh is used as the air circulation layer. 3. The floor panel according to claim 1 or 2, characterized in that a damping material or a damping material and a base plate are provided between the air circulation layer and the floor finishing material layer. 4. The floor panel according to claim 1, wherein the air circulation layer is formed as a concave portion on the lower surface of the floor finishing material layer.