JPH05171789A - Floor finishing material - Google Patents

Abstract

PURPOSE:To provide a floor finishing material excellent in impulse sound shut- off performance for light-weight floor and giving a heavy feeling. CONSTITUTION:In a floor finishing material with a supporting plate 3 of which lower surface is placed on a floor foundation 1 such as concrete slab, etc., directly or through a cushioning material 2 and on the upper surface of which a surface finishing material 4 is directly or indirectly placed, the supporting plate 3 is composed of a plywood in which the odd number of single plates 3A to 3E with a thickness of 5mm or less is laminated on each other. These single plates are laminated so that one single plate 3C at the center crosses the other multiple single plates 3A, 3B, and 3E at right angle in fiber direction. Thus, when both sides of the supporting plate 3 which are parallel to fiber direction of multiple single plates 3A, 3B, and 3E near to each other, the supporting plate 3 can be bent.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor finishing material that is placed on a floor slab such as a concrete slab of an apartment house or a store directly or through a cushioning material and on the floor slab such as a concrete slab.

[0002]

2. Description of the Related Art In a conventional house, particularly an apartment house, a floor finish material generally has a structure in which jutan is directly adhered to a floor base such as a concrete slab. However, this jutan has a hygiene problem such as occurrence of ticks. Under such circumstances, recently, a wood finishing material which has a feeling of cleanliness and is excellent in cleanability has been attracting attention, and its needs are increasing.

[0003]

However, such a relatively hard finishing material has a large problem that the living noise on the floor, particularly the light floor impact sound, is transmitted to the downstairs, and the sound insulation measure is an important subject. . Therefore, it is proposed that synthetic resin foam or the like is attached to the back surface of the finishing material, but the feeling of foot is too soft and there is no material feeling as wood, and the lightweight floor impact sound insulation performance is also a decisive factor. Not not.

It is an object of the present invention to provide a floor finish material which is excellent in the above-described lightweight floor impact sound insulation performance and has a sense of mass.

[0005]

In order to achieve the above object, the lower surface is placed directly or through a cushioning material on a floor base such as a concrete slab, and the upper surface is directly or indirectly provided with a surface finishing material. In a floor finishing material with a supporting plate, the supporting plate is composed of an odd number of laminated plywood with a thickness of 5 mm or less, and the fiber direction between one central veneer and other plural veneers is The support plates are laminated so as to be orthogonal to each other, and the support plates are configured to bend when the support plates parallel to the fiber direction of the plurality of single plates are brought close to each other.

[0006]

In the present invention, the support plate has an odd number of 5
A support plate that is made of plywood in which mm or less veneers are laminated, and is laminated so that the fiber directions of the central veneer and other veneers are orthogonal to each other, and is parallel to the fiber directions of the veneers. Since the support plate is configured to bend when both sides are brought closer, it is smaller than the plate rigidity of conventional plywood, and the support plate can effectively exert a cushioning effect even when impact force acts on the floor side. Becomes Therefore, the floor finishing material is excellent in lightweight floor impact sound insulation performance and has a sense of mass.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

In the embodiment shown in FIG. 1, a cushioning material 2 is attached to a floor base 1 such as a concrete slab, and the cushioning material 2 is used.
A support plate 3 is attached on the upper surface, a cushioning material 2'is attached on the upper surface of the support plate 3, and a surface finishing material 4 is attached on the cushioning material 2 '. In this embodiment, the support plate 3 is composed of a plywood plate in which five single plates 3A to 3E are laminated as shown in FIG. The thickness of each of the single plates 3A to 3E is 5 mm or less. The support plate 3 is a stack of odd numbered veneers, one central veneer 3C and a plurality of other veneers 3A, 3B, 3
They are laminated so that the fiber directions of D and 3E are orthogonal to each other.
That is, as shown in FIG. 2, the single plates 3A, 3 other than the single plate 3C are
B, 3D and 3E all have the same fiber direction. The cushioning material 2 placed directly on the floor base 1 is made of rubber, plastic foam, plastic sheet or fiber, or a composite of these. The same cushioning material 2'is provided between the support plate 3 and the surface finishing material 4. In the embodiment shown in FIGS. 1 and 2, the overall size is 40 to 500 mm wide and 600 to 600 mm long.
The fiber direction of the single plate 3E on the surface of this one unit member is orthogonal to the longitudinal direction. The support plate 3 is configured to bend when both sides X and Y of the support plate 3 parallel to the fiber direction of the plurality of single plates 3A to 3E are brought close to each other. FIG. 3 shows a state in which the support plates 3 are bent in a bow shape by bringing the two sides X and Y close to each other.

In the embodiment shown in FIG. 4, each single plate 3A to 3E is used.
A sound insulating sheet (or / and a vibration damping sheet) 5 is sandwiched between the sound insulating sheet 5 and the sound insulating sheet 5 is made of a flexible material such as a polymer sheet, a polymer foam or an asphalt sheet. The thickness is preferably 2 mm or less.

The embodiment shown in FIG. 5 shows a sound insulating sheet 5 provided above and below a central single plate 3C.

Further, the support plate shown in FIG. 6 shows an example in which the sound insulating sheet 5 is provided on the upper surface of the single plate 3A and the lower surface of the single plate 3E. The sound insulating sheet 5 may have a structure in which the material and the thickness of the sound insulating sheet 5 are different between the upper one and the lower one. For example, one may have a vibration damping function and the other may have a sound insulation function.

It is also possible to produce one unit member of a rectangular floor finish material in a factory or the like and place it on the floor base 1 with the fiber directions thereof being different at the construction site. As shown in FIG. 1, the members of one unit are subjected to the actual processing or the notch processing and joined.

[0013]

As described above, according to the present invention, the supporting plate is composed of an odd number of laminated veneers having a thickness of 5 mm or less, one central veneer and a plurality of other veneers. The support plates are laminated so that the fiber directions of the plates are orthogonal to each other, and the support plates are configured to bend when both sides of the support plate parallel to the fiber directions of the plurality of veneers are brought close to each other, so that the support plates are flexible and Improves the familiarity with the base and suppresses the occurrence of floor squeal. In other words, the support plate itself has a cushioning function, and has excellent lightweight floor impact sound insulation performance. Furthermore, the soundproof performance is further improved by sandwiching a flexible sound insulating sheet or / and a vibration damping sheet between the single plates of the support plate.
Furthermore, while attaching a cushioning material to the lower surface of the support plate,
A rectangular floor finishing material with a surface finishing material attached to the upper surface, in which the fiber direction of the single plate other than the center of the supporting plate is configured to be orthogonal to the longitudinal direction, these rectangular shapes By placing the unit members on the floor base and changing the fiber direction depending on the location, it is possible to provide a floor structure with more excellent sound insulation performance and also facilitate the construction.

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a stacked state of the support plates used in FIG.

FIG. 3 is a perspective view showing a unit member formed in a rectangular shape.

FIG. 4 is a cross-sectional view showing a support plate having a structure in which a sound insulating sheet and / or a vibration damping sheet is sandwiched between single plates.

FIG. 5 is a cross-sectional view of a support plate having a structure in which a sound insulating sheet and / or a vibration damping sheet is sandwiched in the middle.

FIG. 6 is a cross-sectional view of a support plate having a structure in which a sound insulating sheet and / or a vibration damping sheet is sandwiched above and below.

[Explanation of symbols]

 1 Floor base 2, 2'Cushioning material 3 Support plate 4 Surface finishing material 3A-3E Single plate

Claims (3)

[Claims] 1. A floor finishing material having a support plate, the lower surface of which is directly or indirectly placed on a floor base such as a concrete slab, and the upper surface of which is directly or indirectly provided with a supporting plate. The board consists of plywood with an odd number of laminated veneers with a thickness of 5 mm or less. One veneer in the center and other veneers are laminated so that the fiber directions are orthogonal to each other. A floor finishing material characterized in that the support plate is configured to bend when both sides of the support plate parallel to the fiber direction are brought close to each other. 2. The floor finishing material according to claim 1, wherein a flexible sound-insulating sheet and / or a vibration-damping sheet is sandwiched between the single support plates. 3. A rectangular floor finishing material in which a cushioning material is attached to the lower surface of a support plate and a surface finishing material is attached to the upper surface, and the fiber direction of the single plate other than the center of the support plate is the longitudinal direction. The floor finishing material according to claim 1 or 2, which is orthogonal to the.