JP2018096152A - Floor material for direct flooring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor material for direct flooring adaptable to a foundation with concrete or mortar on which the floor material for direct flooring is installed although the foundation does not necessarily have a smooth surface and may include unevenness such as irregularity or wave.SOLUTION: A floor material for direct flooring 1 is a floor material in which a cushioning material 20 is adhered to the underside of a base material 10. The cushioning material 20 has a shape in which both the end parts in a short direction project downward and the center part thereof is depressed, so that it becomes adaptable to the unevenness of the foundation at the time of installation.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a directly pasted flooring used for flooring and the like of an apartment or a general house.

  In this type of direct-attached flooring, the foundation to be installed is a concrete slab or the like, and a cushioning material is usually attached to the back surface of the base material in order to provide sound insulation performance (see, for example, Patent Document 1). .

  As the cushioning material, a material having a uniform thickness such as that of Patent Document 1 is used, or a material having a substantially uniform thickness with continuous irregularities formed on the back surface thereof, such as that of Patent Document 2.

JP 2007-56640 A JP-A-7-150748

  By the way, the ground by concrete or mortar, which is the object of installation of the directly pasted flooring, is not necessarily a smooth surface, and unevenness may occur such as unevenness or undulation.

  However, the conventional direct-attached flooring is assumed to have a smooth surface, and the thickness is uniform or substantially uniform as described in the above-mentioned patent document. It is not something that can be handled.

  The present invention has been proposed in view of such circumstances, and an object of the present invention is to provide a directly pasted flooring material that can cope with unevenness of the ground.

  In order to achieve the above object, the directly pasted floor material of the present invention is a directly pasted floor material in which a cushion material is adhered to the back surface of a base material. It is characterized by having a concave shape.

  According to the directly pasted flooring of the present invention, since it has the above-described configuration, it can cope with the unevenness of the ground when constructed.

(A) is a perspective view of the directly pasted flooring which concerns on one Embodiment of this invention, (b) is an expanded sectional view corresponding to the XX line of (a).

  Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 (a) and 1 (b) are explanatory views of the directly pasted flooring 1. FIG. This figure shows a state in which three directly pasted flooring materials 1 are arranged on the base 5 in the lateral direction of the flooring material.

  The direct pasting flooring 1 is a flooring in which a cushion material 20 is stuck to the back surface of the base material 10. The cushion material 20 has a shape in which both end portions in the short direction protrude downward and the center portion is recessed.

  The directly pasted flooring 1 is a flooring that is directly pasted on a base 5 such as a concrete slab, and a cushioning material 20 for enhancing sound insulation performance is pasted on the back surface. The planar shape of the directly pasted flooring 1 is rectangular, the short dimension is 142 mm, and the long dimension is 895 mm, but of course it is not limited to this.

  As the base material 10 used as the main material of the directly stuck flooring 1, a plywood such as 5 ply or 7 ply can be used. Moreover, materials other than plywood, such as a medium density fiber board (MDF), may be used as the base material 10, and materials other than the wood material may be used as the base material 10. The base material 10 is good also as what had the real part for joining with the direct pasting flooring 1 adjacent to the long side edge part and a short side edge part. A surface decorative material (not shown) made of a veneer or a decorative sheet is attached to the surface of the substrate 10. In addition, joint grooves may be formed on the surface of the directly pasted flooring 1.

  As described above, the cushion material 20 is adhered to almost the entire back surface of the base material 10. As the cushion material 20, a flexible material such as a polyester-based nonwoven fabric, a polyethylene foam, a urethane foam, or a rubber-based elastic body is used.

  As shown in FIGS. 1 (a) and 1 (b), the side surface and the cross-sectional shape of the cushion material 10 have a shape in which the center in the lateral direction is recessed in a curved shape and both end portions protrude downward. As described above, the cushion material 20 has the protruding portions 21 at both ends, and the concave curved portion 22 is formed therebetween. In addition, it is desirable that the thickness (protrusion length) of the protruding portion of the cushion material 20 is substantially the same between both end portions and substantially the same between the cushion materials.

  FIG. 1B shows a state in which the directly pasted flooring 1 is installed on the base 5, and the cross-sectional shapes of the two directly pasted flooring 1 on the left in FIG. The cross-sectional shape of the material 1 is generally represented. In addition, as for the cross-sectional shape of this cushion material 20, it is desirable to make it substantially uniform along a longitudinal direction.

  As shown in FIG. 1B, the surface of the base 5 on which the directly pasted flooring 1 is installed is a wavy uneven surface where the convex portions 7 appear intermittently. As in the two directly pasted flooring materials 1 on the left side of FIG. 1 (b), the directly pasted flooring 1 is arranged so that the convex portion 7 on the surface of the base 5 is arranged in the center in the short direction of the direct pasting flooring 1. If the convex portion 7 is installed, the convex portion 7 enters the concave curved portion 22 of the cushion material 20, so that the convex portion 7 can escape. Moreover, when the convex part 7 of the foundation | substrate 5 is located in the protrusion part 21 of one edge part of the direct sticking flooring 1, like the direct sticking flooring 1 of the right side of FIG.1 (b), the protrusion 21 Is crushed and deformed by the convex portion 7.

  Thus, when the convex portion 7 enters the concave curved portion 22, the convex portion 7 does not push up the directly pasted flooring 1, and when the convex portion 7 contacts the protruding portion 21, the cushion material 20 Since it deform | transforms into flat shape, there is no possibility that the edge part of the direct pasting flooring 1 may protrude upwards. Thus, if this directly pasted flooring 1 is used, it is possible to deal with the unevenness of the base 5 when the directly pasted flooring 1 is constructed, and various problems due to the unevenness can be avoided.

  Moreover, since such a concave curved shape of the cushion material 20 is formed in the center in the short side direction, the bending hardly occurs and the feeling of walking is hardly affected. In addition, it is desirable that the concave portion at the center is formed in a curved shape because it is easier to mold than a step. In addition, it is more convenient for the cushion material 20 to have a concave curved shape and the protruding portions 21 at both ends to have a sharp shape as shown in the figure, so that the protruding portions 21 can be easily deformed when contacting the convex portions 7 of the base 5. Good.

DESCRIPTION OF SYMBOLS 1 Direct pasting floor material 10 Base material 20 Cushion material 21 Protruding part 22 Concave curved part 5 Base | substrate 7 Convex part

Claims (2)

In directly pasted flooring with a cushioning material attached to the back of the substrate,
The cushioning material has a shape in which both end portions in the lateral direction protrude downward and the central portion is recessed. In claim 1,
The directly pasted flooring material, wherein the cushion material has a concavely curved back surface.

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