JP2021025254A - Composite floor material - Google Patents

Abstract

To provide a composite floor material having high degree of freedom in a design pattern and excellent in wind resistance.SOLUTION: A composite floor material A comprises a plurality of floor base materials 10, and a plurality of finishing floor materials 20 arranged on the same. In the floor base material 10, a plurality of engaging holes are formed so as to be distributed in an in-plane direction to each other. On a bottom face of each finishing floor material 20, an engaging protrusion 23 that can engage with selected one of the plurality of engaging holes is formed. An opening ratio of the engaging hole in the floor base material 10 is 20% or higher.SELECTED DRAWING: Figure 1

Description

The present invention relates to a composite floor material in which a floor base material and a finished floor material are combined, and particularly relates to a composite floor material suitable for an outdoor floor provided in an outdoor space such as a balcony, a veranda, a terrace, or an external corridor.

Conventionally, it has been known that flooring materials are installed on balconies and other outdoor floors of buildings such as high-rise condominiums in order to improve the durability and drainage of floor waterproofing materials. In recent years, in addition to the above performance, wind resistance (difficulty of turning, floating, and scattering due to strong winds such as typhoons) and further designability have been required.
Patent Document 1 discloses a composite floor material in which, for example, four finished floor materials are arranged vertically and horizontally on the upper surface of one large-sized floor base material. Each finished flooring material is engaged with the floor substrate via an engaging member.

In the composite floor material of Patent Document 2, the floor base material has a mat-like shape wider and longer than the finished floor material, and a large number of small holes are formed in a certain pattern. The floor base material is cut to an appropriate length according to the size of the balcony and laid. If the width of the floor base material is insufficient, two or more sheets are arranged in parallel. As the finishing floor material, a plurality of tiles having different sizes and shapes are prepared. These tiles are laid on the floor base material in an appropriate arrangement pattern such as through joints, horse tread joints, and net joints. Pins are projected at four points on the lower surface of each tile. Each pin is fitted into the corresponding small hole in the floor substrate.

JP-A-2018-199897 (Fig. 1) Japanese Unexamined Patent Publication No. 8-135147 (FIGS. 1 to 11)

In the composite floor material of Patent Document 1, a specific number of finished floor materials are arranged at specific positions with respect to one floor base material, and the degree of freedom of the design pattern is low.
The composite floor material of Patent Document 2 has a higher degree of freedom in design pattern than Patent Document 1 because the size, position, number, etc. of the finished floor material can be selected. However, when exposed to a strong wind such as a typhoon, it may be turned over or scattered, and there is a problem that the wind resistance is insufficient.
In view of such circumstances, it is an object of the present invention to provide a composite floor material having a high degree of freedom in design patterns and excellent wind resistance.

As a result of diligent studies, the inventors can improve both the degree of freedom of the design pattern and the wind resistance by adjusting the ratio of the engagement holes with the finished floor material to the floor base material, that is, the aperture ratio. I found that.
The present invention has been made based on such findings, and includes one or more floor base materials and a plurality of finished floor materials arranged on the floor base material.
A plurality of engaging holes penetrating in the thickness direction of the floor base material are distributed and formed in the in-plane direction orthogonal to the thickness direction of the floor base material, and are formed on the bottom surface of each finished floor material. Is formed with an engaging protrusion capable of engaging with a selected one of the plurality of engaging holes.
The floor base material is characterized in that the opening ratio of the engaging holes is 20% or more.
For example, the opening ratio is 20% or more by increasing the number of engaging holes or narrowing the arrangement interval. Then, the size, shape, number, etc. of the finished floor material are arbitrarily selected and laid on the floor base material in an appropriate arrangement pattern. By doing so, each engaging projection of each finished flooring material can be engaged to face any one engaging hole in the floor substrate. Therefore, the degree of freedom of the design pattern is high. The material of each finishing floor material can be set as appropriate, and it is possible to arbitrarily construct from a high-class design to a unique design.
Moreover, the floor base material can be prevented from floating or scattering in a strong wind of, for example, 30 m / s or more due to a typhoon or the like (see Examples below), and the wind resistance of the composite floor material is enhanced.
It is considered that the scattering of the floor material at the time of strong wind is caused by the wind blown into the balcony or the like passing over the floor surface and causing a pressure difference between the front and back surfaces of the floor surface. On the other hand, in the present invention, by setting the opening ratio of the floor base material to a specific range, the wind flowing upward from the floor surface can pass through the floor base material, and the composite floor material can be prevented from scattering. It is possible to prevent the composite floor material from scattering due to strong wind without increasing the weight of the composite floor material or fixing the composite floor material to the floor surface.

The opening ratio of the through hole including the engaging hole in the floor base material is preferably 60% or less, more preferably 50% or less.
Thereby, the mechanical strength of the floor base material can be maintained. For example, it can be prevented from cracking even when stepped on.
The shape of the finished floor material is preferably rectangular (square or rectangular). Preferably, the engaging protrusions are provided in the vicinity of the four corners of the rectangular finished floor material.
Preferably, the floor base material is formed so that the support legs project downward. As a result, the floor base material main body (the portion of the floor base material excluding the support legs) can be lifted from the floor surface to improve drainage. The support legs may be displaced from the engagement hole in a plan view, or may be arranged at the same position as the engagement hole in a plan view. It is preferable that the support legs at the same place are formed in a tubular shape, and the internal space thereof is provided as the engagement hole.

The plurality of floor base materials are arranged in the in-plane direction, and one of the plurality of finished floor materials straddles the adjacent floor base material, and the finishing floor material is engaged at a plurality of locations of the one finished floor material. It is preferable that each of the joint protrusions is provided and each engagement protrusion is engaged with the corresponding engagement hole.
As a result, the adjacent floor base materials are connected to each other via the finished floor material of 1. Further, it is preferable that the adjacent floor base materials are connected to each other via a connecting means different from the finished floor material. The connecting means preferably includes a female fitting portion integrally formed on one of the adjacent floor base materials and a male fitting portion integrally formed on the other floor base material.

It is preferable that a plurality of places of the floor base material are covered with different finishing floor materials, and the engaging projections of the finishing floor materials are engaged with the engaging holes of the corresponding places.
As a result, the different finished floor materials are connected to each other via the floor base material.

According to the present invention, it is possible to provide a composite floor material having a high degree of freedom in design patterns and excellent wind resistance.

FIG. 1A is a plan view showing an example of a design pattern of a composite floor material according to an embodiment of the present invention. FIG. 1B is a plan view showing another example of the design pattern of the composite floor material. FIG. 2A is a front view of the composite floor material along the line IIa-IIa of FIG. 1A. FIG. 2B is a front view of the composite floor material along the line IIb-IIb of FIG. 1B. FIG. 3 is a plan view of the floor base material in the composite floor material. FIG. 4A is a cross-sectional view showing a state in which the engaging projections of the finished floor material in the composite floor material are to be fitted into the engaging holes of the floor base material. FIG. 4B is a cross-sectional view taken along the line IVb-IVb of FIG. 1A showing a state in which the engaging protrusion is fitted into the engaging hole. FIG. 5A is a cross-sectional view showing a state in which adjacent floor base materials are to be connected to each other. FIG. 5B is a cross-sectional view taken along the line Vb-Vb of FIG. 1A showing a state in which the adjacent floor base materials are connected to each other. It is a graph which shows the result of Example 1. FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a composite floor material A laid on an outdoor floor such as a balcony, a veranda, a terrace, or an external corridor of a building such as a high-rise condominium. The composite floor material A includes a floor base material laying body 1 (broken line in FIG. 1) and a finished floor laying body 2 (solid line in FIG. 1). As shown in FIG. 2, the floor base material laying body 1 is laid on the floor surface F of the outdoor floor, and the finished floor laying body 2 is laid on the floor base material laying body 1. The laying area of the floor base material laying body 1 and the composite floor material A can be appropriately adjusted, and may be the entire area of the outdoor floor or a part of the outdoor floor. As illustrated in FIGS. 1 (a) and 1 (b), the design pattern of the finished floor laying body 2 and thus the composite floor material A can be freely selected. It will be described in detail below.

The floor base material laying body 1 includes a plurality of floor base materials 10. These floor base materials 10 are laid side by side in the in-plane direction along the floor surface. The material of the floor base material 10 is a resin such as PVC, PP, PE, but rubber may also be used.

As shown in FIG. 3, each floor base material 10 includes a floor base material main body 19 and a plurality of support legs 14. The floor base material main body 19 is formed in the shape of a square (rectangular) perforated plate, and is divided into four vertical and horizontal substrate portions 11. These substrate portions 11 are integrally connected to each other via a connecting portion 12 forming a cross shape in a plan view. A plurality of through-hole-shaped cuts 12c are formed in the connecting portion 12 side by side in the extending direction of the connecting portion 12.
If the connecting portion 12 is cut, the four substrate portions 11 are separated from each other. As a result, the floor base material 10 can be divided and used. For example, the floor base material 10h divided in half is used for the right end side portion of the floor base material laying body 1 in FIGS. 1 (b) and 2 (b).

As shown in FIG. 3, a large number (plurality) of engagement holes 13 are formed in each substrate portion 11 and thus in the floor base material main body 19. The engagement hole 13 penetrates the floor base material main body 19 in the thickness direction. The shape of the engaging hole 13 is quadrangular, but the shape is not limited to this, and it may be circular or a polygon other than a quadrangle such as a hexagon. As shown in FIG. 4A, a chamfered guide slope 13e is formed on the peripheral edge of the upper end portion of the engaging hole 13. A locking step 13d is formed in the middle portion of the engaging hole 13.
As shown in FIG. 3, a plurality of engaging holes 13 are distributed in a constant pattern in the in-plane direction (direction orthogonal to the thickness direction) of the floor base material 10. In FIG. 3, they are distributed in a regular lattice pattern.

The opening ratio of the engaging holes 13 in the floor base material 10 is 20% or more. The opening ratio of the engaging holes 13 is the total area of all the engaging holes 13 (each engaging hole 13) with respect to the apparent area of the floor base material 10 in a plan view (the product of the vertical and horizontal external dimensions of the floor base material 10). The ratio of the opening area x the number of engaging holes 13).
The opening ratio of the through hole including the engaging hole 13 and the cut 12c in the floor base material 10 is preferably 60% or less, more preferably 50% or less. The aperture ratio of the through hole refers to the ratio of the total area of the total through hole to the apparent area of the floor base material 10 in a plan view.
Examples of the through holes other than the engagement hole 13 and the cut 12c include a drain hole, a decorative hole, and a lightening hole.

As shown in FIGS. 3 and 4A, a plurality of support legs 14 are formed on the floor base material 10. The support legs 14 project downward from the floor base material main body 19. Each support leg 14 is arranged at a position deviated from the engagement hole 13 in the floor base material main body 19. Preferably, the support legs 14 are arranged between the four vertical and horizontal engaging holes 13. A plurality of support legs 14 are arranged so as to be dispersed with each other in the in-plane direction of the floor base material main body 19. The arrangement interval of the support legs 14 is larger than that of the engaging holes 13.

As shown in FIG. 5, adjacent floor base materials 10 in the floor base material laying body 1 are connected to each other via a connecting means 30. As shown in FIG. 5A, the connecting means 30 includes a female fitting portion 31 and a male fitting portion 32. The male and female fitting portions 31 and 32 are integrally formed on each floor base material 10. As shown in FIG. 3, the female fitting portion 31 is formed in a substantially annular shape, and projects horizontally and outward from two orthogonal sides of each floor base material 10. A plurality of female fitting portions 31 are arranged apart from each other along the two sides. The male fitting portion 32 projects downward from the remaining two sides of the floor base material 10 and also serves as a support leg. A plurality of male fitting portions 32 are arranged apart from each other along the remaining two sides.
As shown in FIG. 5B, the female fitting portion 31 of one floor base material 10 in the adjacent floor base material 10 is fitted with the corresponding male fitting portion 32 of the other floor base material 10. There is.

As shown in FIG. 1, the finishing floor laying body 2 includes a plurality of finishing floor materials 20. These finished floor materials 20 are arranged in the in-plane direction on the floor base material 10.
The material of the finishing floor material 20 may be tile, resin, or metal.

As the finishing floor material 20, a plurality of types of finishing floor materials 20A, 20B, and 20C having different sizes and shapes are used. For example, a small square finishing floor material 20A, a large square finishing floor material 20B, a rectangular finishing floor material 20C, and the like are used. Even the largest finished floor material 20B is smaller than the floor base material 10 and further smaller than one substrate portion 11.

As shown in FIGS. 1 and 4A, engaging protrusions 23 are formed so as to project downward at a plurality of locations on the bottom surface (lower surface) of each finished floor material 20. Preferably, the engaging protrusions 23 are provided in the vicinity of the four corners of the finished floor material 20, respectively. The planar cross-sectional shape of each engaging protrusion 23 is circular, but it may be a quadrangle that matches the engaging hole 13.
As shown in FIG. 4A, the engaging protrusion 23 includes a cylindrical protrusion base portion 23b and a large-diameter locking portion 23d at the tip end portion (lower end portion) thereof. A tapered tapered surface 23e is formed on the tip end side portion (lower side portion) of the locking portion 23d.

As shown in FIGS. 1 (a) and 1 (b), a plurality of finished floor materials 20 (20A to 20C) are arranged on the floor base material laying body 1 in an appropriate arrangement pattern. Preferably, the adjacent finishing floor materials 20 are substantially in contact with each other. In FIG. 1, for convenience, the adjacent finishing floor materials 20 are shown with a slight interval. A plurality of locations of each floor base material 10 are covered with different finishing floor materials 20. Alternatively, one finishing floor material 20 straddles a plurality of floor base materials 10. Further, as shown in FIG. 4B, the engaging projections 23 of each finished floor material 20 are engaged with the engaging holes 13 at the corresponding locations in the corresponding floor base material 10.

Conversely, when the finished flooring materials 20 (20A to 20C) are arranged in an arbitrary arrangement pattern, each engaging projection 23 can engage with one selected engaging hole 13. The shape of the finished floor material 20, the arrangement of the engaging protrusions 23 on the finished floor material 20, the arrangement of the engaging holes 13 on the floor base material 10, and the like are set.

When the engaging protrusion 23 is fitted into the engaging hole 13, the tapered surface 23e is guided by hitting the guide slope 13e, so that the engaging protrusion 23 and the engaging hole 13 are aligned while the engaging protrusion 23 is aligned. Pushed down. At this time, the peripheral portion of the engaging hole 13 and the engaging projection 23 of the floor base material 10 are elastically deformed.
As shown in FIG. 4B, the locking portion 23d is eventually moved downward from the locking step 13d, so that the peripheral portion of the engaging hole 13 and the engaging projection 23 in the floor base material 10 are elastically restored. Will be done. Moreover, the finished floor material 20 is fixed to the floor base material 10 by being caught by the locking portion 23d on the locking step 13d.

According to the composite floor material A, various sizes and arrangement intervals are set by setting the number of engaging holes 13, the arrangement interval, and the like so that the opening ratio of the engaging holes 13 in the floor base material 10 is 20% or more. The finished floor material 20 (20A to 20C) having a shape can be laid on the floor base material 10 in an appropriate arrangement pattern. Moreover, each engaging projection 23 of each finished floor material 20 can be made to be engaged with the engaging hole 13 of any one of the floor base materials 10 so as to face each other. Not limited to the arrangement patterns shown in FIGS. 1A and 1B, the finishing floor material 20 can be arranged in a wide variety of arrangement patterns, and the finishing floor laying body 2 having a wide variety of design patterns can be configured. Therefore, the degree of freedom of the design pattern of the finished floor laying body 2 and the composite floor material A is high. The material of each finishing floor material 20 can be set as appropriate, and it is possible to arbitrarily construct from a high-class design to a unique design.
Moreover, by setting the opening ratio, the floor base material 10 can be prevented from floating or scattering due to a strong wind of, for example, 30 m / s or more due to a typhoon or the like (see Examples below), and the floor base material laying body. 1 As a result, the wind resistance of the composite floor material A can be improved.
As a result, both the degree of freedom of the design pattern and the wind resistance can be improved.
Further, the opening ratio of the through hole including the engaging hole 13 and the cut 12c in the floor base material 10 is preferably set to 60% or less, more preferably 50% or less, thereby mechanically setting the floor base material 10. The strength can be secured and it can be easily prevented from cracking even when stepped on.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the shape, number, arrangement, and the like of the engagement holes 13 in the floor base material 10 can be appropriately set.
The floor base material 10 may be formed with drain holes, decorative holes, lightening holes, and the like as through holes other than the engagement holes 13 and the cuts 12c.
The support legs 14 may be arranged at the same position as the engaging holes 13 in a plan view. The support legs 14 at the same location may be formed in a tubular shape, and the internal space thereof may be provided as the engagement holes 13.
The number of floor base materials 10 in the floor base material laying body 1 may be only one.
The size and shape of the finishing floor material 20 are not limited to those of the embodiment, and may include, for example, rectangular finishing floor materials of different sizes, and finishing floors other than rectangles (triangle, pentagon, hexagon, circle, etc.). It may contain wood.

Examples will be described below. The present invention is not limited to the following examples.
The wind resistance of the floor base material alone was investigated.
A floor base material having a shape similar to that of the floor base material 10 shown in FIG. 3 was prepared.
The vertical and horizontal sizes of the floor base material were 300 mm × 300 mm.
The height of the entire floor substrate was 15.6 mm.
The height (thickness) of the floor base material main body 19 was 7 mm.
The height of the support legs 14 (distance from the lower surface of the floor base material main body 19 to the lower surface of the support legs 14) was 8.6 mm.
The weight of the floor base material was 320 g.
The plan view shape of each engagement hole 13 was quadrangular, and the vertical and horizontal sizes were 8 mm × 8 mm.
The arrangement of the engagement holes 13 in each substrate portion 11 was 12 in the vertical and horizontal directions × 12.
The number of engaging holes 13 in the entire floor base material was 576.
The total area of the engaging holes 13c in the floor substrate was ^{35864 mm 2.}
By selectively closing a part of the 576 engaging holes 13 with the adhesive tape, the opening ratio of the engaging holes in the floor base material was adjusted in the following seven ways (1) to (7). Note that (1) is a case where the adhesive tape is not attached.
(1) 40.96%
(2) 10.24%
(3) 20.48%
(4) 27.31%
(5) 30.72%
(6) 28.44%
(7) 34.42%

For each of (1) to (7), when the floor base material is placed on the floor surface and a strong wind is formed horizontally along the floor surface with a strong wind blower, and the floor base material floats or scatters. The wind speed was measured.
The results are shown in FIG. The black circles in the figure indicate the wind speed when the floor base material floats or scatters, and the white circles indicate that the floor base material did not float even at the maximum output of the strong wind blower, which is 40 m / s.
It was confirmed that by setting the opening ratio of the engaging holes in the floor base material to 20% or more, it can withstand a wind speed of 30 m / s or more. It is considered that the wind flowing upward from the floor surface can pass through the floor base material, and the anti-scattering property is improved.

The present invention can be applied, for example, as a composite floor material for balconies and balconies of apartment houses.

A Composite floor material F Floor surface 1 Floor base material laying body 10 Floor base material 12c Cut (through hole)
13 Engagement hole (through hole)
14 Support legs 19 Floor base material Main body 2 Finished floor laying body 20 Finished flooring materials 20A, 20B, 20C Finished flooring materials 23 Engagement protrusions 30 Connecting means

Claims (4)

It comprises one or more floor substrates and a plurality of finishing flooring materials arranged on the floor substrate.
A plurality of engaging holes penetrating in the thickness direction of the floor base material are distributed and formed in the in-plane direction orthogonal to the thickness direction of the floor base material, and are formed on the bottom surface of each finished floor material. Is formed with an engaging protrusion capable of engaging with a selected one of the plurality of engaging holes.
A composite floor material having an opening ratio of the engaging holes of 20% or more in the floor base material. The composite floor material according to claim 1, wherein the opening ratio of the through hole including the engaging hole in the floor base material is 60% or less. The plurality of floor base materials are arranged in the in-plane direction, and one of the plurality of finished floor materials straddles the adjacent floor base material, and the finishing floor material is engaged at a plurality of locations of the one finished floor material. The composite flooring material according to claim 1 or 2, wherein each engaging protrusion is provided and each engaging protrusion is engaged with a corresponding engaging hole. Claims 1 to 3 include that a plurality of places of the floor base material are covered with different finishing floor materials, and the engaging projections of the finishing floor materials are engaged with the engaging holes of the corresponding places. The composite flooring material according to any one of the above items.

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