JP2003247328A - Floor decoration material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor decoration material excellent in adhesion to a resin mat and a tile or the like and durability. <P>SOLUTION: In the floor decoration material 1, a surface material 3 is fixedly stuck to a resin mat 2. An adhesion hole 21 on which a rib 2 is put is provided in the resin mat 2. In the decoration floor material 1 to which the resin mat 2 and the surface material 3 are stuck by solidifying an adhesive 4 poured into the adhesion hole 21 in a condition that the adhesive wraps up the rib of the adhesion hole, the both edges of the pour input of the rib are chamfered arcuately. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a floor decorative material in which a surface material such as a tile is adhered and fixed to a surface of a resin mat made of synthetic resin.

[0002]

2. Description of the Related Art Generally, a unit type floor decorative material to be laid on a floor such as a balcony is known in which tiles are adhered to a resin mat surface with an adhesive.

For example, in Japanese Patent No. 2785127, a ring-shaped adhesive reservoir (adhesive hole) having an opening penetrating in the thickness direction for accumulating an adhesive in a resin mat is provided, and a cross is formed in the adhesive hole. -Shaped beam-shaped portion (rib),
There is described a tile mat in which an adhesive injected into an adhesive hole is adhered and cured to a tile in a state in which the adhesive is entangled with a rib, and the cured adhesive is prevented from separating from the injection hole.

In this tile mat, the tiles are first placed inside out, the resin mat is placed inside out so as to be overlaid, and an adhesive is injected into the opening of the adhesive hole of the resin mat from above. Then, the adhesive is cured to manufacture.

[0005]

However, in the floor decorative material such as the tile mat described in the above publication, when the adhesive is poured from above into the opening of the adhesive hole of the resin mat, the adhesive is placed on the rib. It will be poured and run down the back of the tile. However, as the adhesive agent, when the adhesive agent has a viscosity and fluidity such that the adhesive agent does not leak from the space between the tile and the resin mat, a rib having a square cross section is provided in the adhesive hole. , Even if the adhesive injected from above is poured on the upper surface of the rib having a square cross section, the tile side may not be evenly filled.

Further, even if the adhesive injected into the adhesive holes is adhered and hardened to the tile in a state of being entangled with the ribs, a floor decorative material such as a tile mat is laid on the veranda or cleaned during use after the laying. When stress is concentrated and applied to the hardened adhesive at the upper edge of the rib when removing or
It becomes the starting point of material destruction of the adhesive. as a result,
When the cured adhesive is torn and adheres to the tile, it may come off from the adhesive hole and the tile may peel off from the resin mat.

Furthermore, when walking on the floor on which a floor matting material such as a tile mat is laid, or when the surface material and the resin mat having different linear expansion coefficients due to the temperature difference of cold and heat repeatedly undergo thermal expansion and contraction, When a load is applied to the resin mat surface in a sliding direction, the stress concentrates near the adhesive surface between the tile and the adhesive due to shearing force, and this becomes the starting point of the interfacial failure of the adhesive, causing the adhesive to leave the tile. It may peel off.

An object of the present invention is to solve the above-mentioned drawbacks and to provide a floor decorative material which has good adhesiveness between a resin mat and a surface material such as a tile and is excellent in durability.

[0009]

The floor decorative material according to claim 1 is a floor decorative material in which a surface material is adhesively fixed to a resin mat, and the resin mat is provided with an adhesive hole in which ribs are bridged. In the floor decorative material in which the resin mat and the surface material are adhered by solidifying the adhesive injected into the adhesive hole in a state of enclosing the rib of the adhesive hole, both edges of the rib on the injection port side are circular. It is characterized by being chamfered in an arc shape.

The floor decorative material according to claim 2 is a floor decorative material in which a surface material is adhesively fixed to a resin mat, and the resin mat is provided with an adhesive hole having ribs spanned therein, and the adhesive hole is provided in the adhesive hole. In the floor decorative material in which the resin mat and the surface material are adhered by solidifying the injected adhesive while enclosing the rib of the adhesive hole, the diameter of the adhesive hole is expanded from the injection port side to the opening peripheral edge of the adhesive material on the surface material side. It is characterized in that the expanded diameter portion is formed.

In the present invention, the resin mat is polyethylene, polypropylene, ethylene / vinyl acetate copolymer,
Made of resin material such as polystyrene and vinyl chloride, 1
It is formed in such a size that one or a large number of surface materials can be adhered to each other.

In the present invention, the resin mat is molded by the injection molding method using the above resin material. In order to form an arcuate chamfer on both edges of the inlet side of the rib spanned in the adhesive hole of this resin mat, the resin mat is molded with square ribs and the both edges of the inlet side are post-processed. Although it may be cut in an arc shape to be chamfered, it is preferable to perform molding so as to have a chamfered shape in an arc shape simultaneously with injection molding.

In the present invention, the surface material is formed in a rectangular shape having an appropriate thickness. As the surface material, a desired material such as a porcelain tile, a rubber tile, a wooden tile, a resin tile, or an inorganic sintered tile is used according to the construction site.

In the present invention, the adhesive is a flowable one having a viscosity capable of retaining its shape in a raised state when dropped on the bonded portion. For example, a thermoplastic resin such as ethylene / vinyl acetate copolymer or polyamide. A hot-melt adhesive composed of is preferred, but is not limited thereto. For example, in the case of a thermosetting adhesive such as an epoxy resin, a thermosetting adhesive adjusted to have a non-flowing viscosity may be dropped onto the adhesive portion.

[0015]

DETAILED DESCRIPTION OF THE INVENTION

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing the overall structure of a floor decorative material of the present invention. FIG. 1 (a) is a partially cutaway plan view, FIG. 1 (b) is a partially cutaway side view, and FIG. 2 is an adhesive portion on the back surface of a resin mat. 3 is an explanatory view showing an embodiment of an adhesive hole in which the resin mat is seen from the back surface, and FIG. 4 is an AA line in FIG.
5 is an enlarged sectional view of an essential part taken along the line BB, FIG. 5 is an enlarged sectional view of an essential part taken along the line BB in FIG. 3, FIG. 6 is a sectional view illustrating a manufacturing example of a floor decorative material, and FIG. 7 is a floor decorative material. FIG. 3 is an enlarged cross-sectional view of a main part showing a bonded portion of FIG.

In FIGS. 1 (a) and 1 (b), the floor decorative material 1 is made by adhering the front surface 20 of the resin mat 2 to the back surface 30 of the surface material 3 in an overlapping manner.

That is, the floor decorative material 1 is constructed by adhering and fixing the surface material 3 to the adhesive hole 21 of the resin mat 2 via the adhesive 4.

The resin mat 2 is made of polyethylene resin, and is formed in such a size that the surface material 3 of the porcelain tile can be adhered in a state in which nine sheets in total are arranged in three rows and three rows. And
The protrusions 22 are formed on two adjacent sides of the resin mat 2,
The receiving portion 23 is formed on the other two adjacent sides, and the projecting portion 2
The plurality of resin mats 2 can be connected to each other by 2 and the receiving portion 23. Further, with the surface material 3 arranged on the resin mat 2, adhesive holes 21 are formed at positions corresponding to the four corners of each surface material 3.

The adhesive hole 21 has a cross-shaped rib 25 formed inside a cylindrical hole penetrating the resin mat 2.
Both edges of the rib 25 on the inlet side are chamfered in an arc shape. The chamfered shape of both edges 251 of the rib 25 on the inlet side has a cross-sectional shape as shown in FIG. 5 (a) or 5 (b), and the chamfered radius of the arc shape depends on the viscosity of the adhesive 4 and the size of the rib 25. Although depending on the condition, it is preferably 0.6 mm or more.

As the adhesive 4, a thermosetting adhesive such as epoxy is used. As shown in FIG. 6, the surface material 3 of the porcelain tile is used.
Is placed upside down, the resin mat 2 is placed upside down on it, and the thermosetting adhesive 4 having a melted viscosity is poured from the supply nozzle into the adhesive hole 21 by a predetermined amount. At this time, the adhesive 4 poured from above the ribs 25 flows down along both edges 251 on the injection port side and is solidified in a state where the adhesive holes 21 are evenly filled.

The floor decorative material 1 thus obtained is shown in FIG.
As shown in FIG. 5, the adhesive 4 wraps the rib 25 so that there is no gap between it and the rib 25, and is evenly filled in the adhesive hole 21, and the adhesive 4 is solidified because it is attached to the rib 25 of the adhesive hole 21. The adhesive 4 does not come off from the adhesive hole 21, and the surface material 3 is firmly bonded to the surface of the resin mat 2. Moreover, since both the inlet side edges 251 are chamfered in an arc shape, the concentrated stress is relieved.
The adhesive is not destroyed by the ribs 25.

8 to 10 show another embodiment (floor decorative material according to claim 2) of the present invention. In the present embodiment, as apparent from the drawing, in the adhesive hole 21A of the resin mat 2, the opening peripheral edge on the side in contact with the surface material 3 is widened in a taper shape to form the enlarged diameter portion 24. In this way, the adhesive hole 21A
By filling the expanded diameter portion 24 with the adhesive injected therein, the adhesive area between the adhesive 4 and the surface material 3 is increased, and the adhesive strength between the cured adhesive 4 and the surface material 3 is increased by that much. Get higher

Further, when the opening peripheral edge is chamfered in a tapered shape, stress concentration near the interface of the adhesive agent adhered to the tile 2 is relieved, so that even if a shearing force is applied, interface destruction does not occur.

Therefore, even if shearing stress is applied between the adhesive 4 and the surface material 3 due to a difference in temperature during walking or cold / warm, the adhesive 4
Does not come off from the surface material 3.

As the enlarged diameter portion 24 of the adhesive hole 21A used in the present invention, as shown in FIGS. 11 (a) to 11 (c), the peripheral edge of the opening has a stepwise enlarged diameter, or a tapered shape. Examples thereof include those in which the curved surface 24a is formed in the expanded diameter portion 24, and those in which the cylindrical body of the adhesive hole 21A is expanded in diameter.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific form is not limited to this embodiment, and design changes and the like within the scope not departing from the gist of the present invention. Even if it exists, it is included in the present invention.

For example, in the above embodiment, a thermosetting adhesive such as epoxy was used, but a hot-melt adhesive may be used as long as it is a highly viscous, non-flowable adhesive. In addition, although the cross-shaped rib is illustrated as the rib 25 of the adhesive holes 21 and 21A, as shown in FIGS. 12 (a) and 12 (b), a Y-shaped rib 25a or an I-shaped rib 25b may be used. I do not care. Furthermore, the adhesive hole 21 of the resin mat 2 is not limited to the circular shape, but may be a quadrangular shape or a polygonal shape.

[0028]

According to the floor decorative material of the present invention, even if the opening of the adhesive hole of the resin mat is large, the adhesive can be evenly filled in the adhesive hole, the adhesiveness between the resin mat and the surface material is improved, and the durability is improved. It is possible to obtain excellent products and to use a small amount of adhesive.

[Brief description of drawings]

FIG. 1 is a diagram showing the overall structure of a floor decorative material of the present invention.
(a) is a partially broken plan view and (b) is a partially broken side view.

FIG. 2 is a perspective sectional view of an essential part showing an adhesive portion on the back surface of the resin mat in the embodiment of the present invention.

FIG. 3 is an explanatory view showing an example of an adhesive hole of the same resin mat as seen from the back side.

FIG. 4 is an enlarged cross-sectional view of a main part taken along the line AA in FIG.

5 is an enlarged cross-sectional view of a main part taken along the line BB in FIG.

FIG. 6 is a cross-sectional view illustrating a production example of the floor decorative material of the present invention.

FIG. 7 is an enlarged cross-sectional view of a main part showing an adhesive portion of a floor decorative material in an example of the present invention.

FIG. 8 is an explanatory view showing an adhesive hole when a resin mat in another embodiment (floor decorative material according to claim 2) of the present invention is seen from the back surface.

9 is an enlarged cross-sectional view of a main part taken along the line CC in FIG.

FIG. 10 is an enlarged sectional view of an essential part showing a modified example of an adhesive hole of a resin mat according to another embodiment of the present invention.

FIG. 11 is an explanatory view showing a modified example of the rib in the embodiment of the present invention.

[Explanation of symbols]

1: Floor decorative material 2: Resin mat 3: Surface material 4: Adhesive 20: Front side 21, 21A: Bonding hole 24: Expanded part 25, 25a, 25b: rib 251: Both edges on the inlet side 30: Back side

Claims (2)

[Claims] 1. A floor decorative material in which a surface material is adhesively fixed to a resin mat, wherein the resin mat is provided with an adhesive hole in which ribs are bridged, and the adhesive injected into the adhesive hole is an adhesive hole. In the floor decorative material in which the resin mat and the surface material are adhered by being solidified in a state of enclosing the ribs, both edges of the rib on the inlet side are chamfered in an arc shape. . 2. A floor decorative material in which a surface material is adhesively fixed to a resin mat, wherein the resin mat is provided with an adhesive hole in which ribs are bridged, and the adhesive injected into the adhesive hole is an adhesive hole. In the floor decorative material in which the resin mat and the surface material are adhered by being solidified in a state of enclosing the ribs, a diameter-increased portion whose diameter is expanded from the injection port side is formed in the opening peripheral edge of the adhesive hole on the surface material side A floor decorative material characterized by being