JPH07238658A - Floor panel - Google Patents

Abstract

PURPOSE:To provide excellent durability by disposing a reinforcing member along the lower surface of a waterproof pan, and integrating the waterproof pan and the reinforcing member together via a joint comprising main and auxiliary joints. CONSTITUTION:A surrounding upright wall 21 is formed by vacuum forming of a vinyl chloride resin, and a waterproof pan 2 having a drainage ditch 23 provided on one side of the cross direction of a floor face 22 is molded. A reinforcing member 3 combined with a plate-shaped body 3a made of a vinyl chloride resin having a hollow part 31 is disposed along the lower surface of the waterproof pan 2. The waterproof pan 2 and the reinforcing member 3 are integrally joined together via a main joint 4 and an auxiliary joint 5 which is lower in modulus of transverse rigidity than the main joint 4, the width of the joint being 1-4% of the distance from the end of the waterproof pan 2 to a center line. Therefore, the waterproof pan and the reinforcing member can be prevented from being peeled from each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to floor panels used for balconies, balconies and the like.

[0002]

2. Description of the Related Art Recently, a floor overhanging an outer wall of a building such as a balcony or a veranda can be easily constructed by laying a floor panel on a foundation material such as joists.
This floor panel is generally composed of a synthetic resin waterproof pan formed by vacuum forming or the like, and a reinforcing member joined to the lower surface of the waterproof pan via a bonding material such as an adhesive (actually, actual product). See Japanese Patent Application No. 2-112755).

[0003]

However, since the reinforcing material is made of plywood or metal and has a different thermal expansion / contraction rate from that of the waterproof pan, it will be reinforced with the waterproof pan due to changes in temperature when used for a long period of time. Thermal stress is generated between the material and the thermal stress, and a shearing force acts on the joint portion to separate the joint portion, and the waterproof pan and the reinforcing material may be separated.

Even if the same synthetic resin as the material of the waterproof pan is used as the reinforcing material, the waterproof pan and the reinforcing material are
Since the temperature of the waterproof pan that receives direct sunlight increases, the elasticity of the waterproof pan and the reinforcing material is different. Therefore, thermal stress is still generated between the waterproof pan and the reinforcing material, and the thermal stress may exert a shearing force on the joint portion, causing the joint portion to peel off and separating the waterproof pan and the reinforcing material.

In view of such circumstances, it is an object of the present invention to provide a floor panel having excellent durability, in which the joint between the waterproof pan and the reinforcing material does not peel off even after long-term use. I am trying.

[0006]

In order to achieve such an object, in the floor panel according to the present invention, a reinforcing material is provided on the lower surface of the waterproof pan, and the waterproof pan and the reinforcing material are connected via a joining material. In the integrated floor panel, the joining material is composed of a main joining material that joins the central portion of the waterproof pan and the reinforcing material, and a sub joining material that joins the peripheral portion of the waterproof pan and the reinforcing material. However, the lateral elastic modulus of the sub-bonding material is lower than that of the main bonding material.

The width of the joint between the waterproof pan and the reinforcing member formed by the auxiliary joint material is preferably about 1 to 4% of the distance from the peripheral edge of the waterproof pan to the center line in both the longitudinal and lateral directions. . Further, in the above structure, the main bonding material is not particularly limited, and examples thereof include a vinyl acetate adhesive having an elastic modulus of about 10 to 20 kgf / mm ² and an epoxy-modified adhesive.

The auxiliary bonding material is not particularly limited,
An acrylic foam tape with a double-sided adhesive having a lateral elastic modulus of about 1 × 10 ⁻³ to 10 × 10 ⁻³ kgf / mm ² can be used. The thickness of the bonding material layer is preferably about 0.1 to 1.0 mm.

[0009]

According to the above construction, the thermal stress applied to the peripheral portion of the floor panel is relieved by the auxiliary bonding material, and the shear stress is reduced. If the width of the joint portion formed by the auxiliary joint material is less than 1% of the distance from the edge of the waterproof pan to its center line, thermal stress may not be sufficiently relaxed, and if it exceeds 4%,
Thermal expansion and contraction of the waterproof pan or the reinforcing material cannot be suppressed, and the waterproof pan and the reinforcing material may be separated from each other at the edge portion.

If the thickness of the bonding material is less than 0.1 mm, the shear stress is large and peeling is likely to occur, and if it exceeds 1.0 mm, the effect of the adhesive takes time and the manufacturing cost increases.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings showing the embodiments thereof. 1 to 4 show a first embodiment of a floor panel according to the present invention. As shown in the figure, the floor panel 1 is composed of a waterproof pan 2 and a reinforcing member 3 as shown in FIGS. 2 and 3.

The waterproof pan 2 is, as shown in FIGS.
It is in the shape of a plate surrounded by a wall 21 that stands up vertically by vacuum forming vinyl chloride resin.
A drainage groove 23 is formed on one side in the widthwise direction. As shown in FIG. 2, the reinforcing member 3 is formed by combining the extruded vinyl chloride resin plate-shaped members 3 a, 3 a having a hollow portion 31.

The waterproof pan 2 and the reinforcing material 3 are integrally joined via two kinds of joining materials, that is, the main joining material 4 and the sub joining material 5. The auxiliary joining material 5 is the main joining material 4
The lateral elastic coefficient (horizontal elastic coefficient in the joint surface) is lower, and the width of the joint is 2.5% of the distance from the edge of the waterproof pan 2 to the center line.

FIG. 5 shows a second embodiment of the floor panel according to the present invention. The floor panel 6 of this embodiment has a so-called folded plate shape in which the reinforcing material 7 has a wavy cross-section and the wave crests 71 and the bottoms 72 are flat along the ridgeline, and the wave crests 71 are the waterproof pan 2. It is the same as that of the first embodiment except that it is integrally joined via the joining materials 4 and 5. In addition, the wave valley portion 73 facing the waterproof pan 2 is a space.

By the way, as shown in FIG. 6, the floor panel 6 is placed on the joists 81 to easily construct a balcony. In FIG. 6, 82 is a handrail, 83 is a make-up area, 84 is a drainage pipe, 85 is a girder, 86 is a pillar, 87 is a window frame (aluminum sash), and 88 is an eaves. Next, the floor panel of the present invention will be described more specifically.

Example 1 Vinyl acetate as the main bonding material 4
0.5mm as a sub-bonding material while using a system adhesive
Acrylic foam tape with thick double-sided adhesive (Sumitomo Su
Floor panel similar to Figures 1 to 4
It was made. The lateral elastic modulus of vinyl acetate adhesive is
16 kgf / mm²Lateral modulus of elasticity of acrylic foam tape
Is 5.5 x 10 ^-3kgf / mm²Met. In addition, the main bonding material layer
The thickness was 0.5 mm.

(Embodiment 2) An epoxy-modified adhesive (made by Cemedine, trade name, Cemedine PM-
210) was used, and a floor panel was produced in the same manner as in Example 1 except that a vinyl chloride resin-coated steel sheet shown in FIG. 5, a so-called vinyl chloride steel plate folding plate, was used as the reinforcing material instead of the extruded sheet material. The lateral modulus of elasticity of the epoxy-modified adhesive was 15 kgf / mm ² .

(Comparative Example 1) A floor panel was prepared in the same manner as in Example 2 except that the waterproof pan and the reinforcing material were joined together by using only the epoxy adhesive as the main joining material without using the auxiliary joining material. did. The thickness of the epoxy adhesive layer was 0.5 mm. (Comparative Example 2) A floor panel was produced in the same manner as in Example 2 except that the waterproof pan and the reinforcing member were joined together by using only the epoxy-modified adhesive as the main joining material without using the sub joining material. The thickness of the epoxy-modified adhesive layer was 0.5 mm.

The floor panels obtained in Examples 1 and 2 and Comparative Examples 1 and 2 were -10 in an atmosphere having a humidity of 80%.
When the adhesiveness between the floor pan 2 and the reinforcing material 3 when the temperature change of 80 ° C. to 80 ° C. was repeated was examined, Examples 1 and 2 were obtained.
In the floor panel of No. 1, the reinforcing material did not peel off from the waterproof pan even after 1000 cycles, but in the floor panels of Comparative Examples 1 and 2, the joint portion at the distance from the edge of the waterproof pan to the central portion at 24 cycles. It was peeled off with a width of 33%, and the bonded portion was completely peeled off after 51 cycles.

The floor panel according to the present invention is not limited to the above embodiments. For example, in the above-mentioned embodiment, the floor surface of the waterproof pan bulges out in a grid pattern, but it may be a flat surface or may have a skid-like anti-slip structure.

[0021]

Since the floor panel according to the present invention is constructed as described above, the thermal stress applied to the peripheral portion of the floor panel is relieved by the auxiliary bonding material, and the shear stress (or peeling stress) is reduced. It Therefore, even if it is used for a long period of time, the waterproof pan and the reinforcing material are not separated from each other, and the durability is excellent.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of a floor panel according to the present invention.

FIG. 2 is a cross-sectional view taken along the line AA of FIG.

3 is a cross-sectional view taken along the line BB of FIG.

FIG. 4 is a cross-sectional view taken along the line CC of FIG.

5 is a cross-sectional view of the first embodiment of the floor panel according to the present invention, which is a portion similar to the line AA in FIG. 1. FIG.

FIG. 6 is a cross-sectional view showing the installed state of the floor panel of FIG.

[Explanation of symbols]

 1 Floor panel 2 Waterproof pan 3 Reinforcement material 4 Main joining material 5 Sub joining material 6 Floor panel 7 Reinforcement material

Claims (2)

[Claims] 1. A floor panel in which a reinforcing member is arranged along the lower surface of a waterproof pan, and the waterproof pan and the reinforcing member are integrated with each other via a joining material, wherein the central portion of the waterproof pan and the reinforcing member are The invention is characterized in that it is joined via a main joining material, and the peripheral edge portion of the waterproof pan and the reinforcing material are joined via an auxiliary joining material having a lateral elastic coefficient lower than that of the main joining material. Floor panel to do. 2. The floor panel according to claim 1, wherein the joint portion made of the auxiliary joint material is provided with a width of 1 to 4% of the distance from the edge of the waterproof pan to the center line.