JPH0296053A - Sound-resisting woody flooring - Google Patents

Abstract

PURPOSE:To increase sound-resisting efficiency by pasting a buffer consisting of a fiber mat with projected and recessed patterns to which natural rubber or synthetic resin is applied directly or through a buffer sheet and an intermediate woody plate on the rear of a woody plate and forming a flooring. CONSTITUTION:A buffer 2 consisting of a fiber mat with projected and recessed patterns 3 to which natural rubber or synthetic resin is applied is pasted on the rear of a woody plate 1. A sheet 4 having sound-resisting efficiency, vibration controlling efficiency or buffer efficiency and an intermediate woody plate 5 may be inserted between the woody plate 1 and buffer 2. A perforated woody plate is used as the intermediate woody plate 5, and the sound-resisting efficiency is further increased. The woody plate 1, sheet 4 and intermediate woody plate 5 are held together as unit, dividing it into scantlings to combine, so that the sound can't be transmitted, and such a constitution as having further sound-resisting efficiency may be available.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a sound-insulating wood-based flooring material that is suitable for being applied directly to a conocret flooring material.

[Prior Art] Conventionally, the floors of mid-to-high-rise residences have often been made by directly pasting carpets to concrete floors through felt. However, carpets tend to get dirty easily, and the occurrence of dust mites has become a problem.

Therefore, instead of pasting carpets, the floor has been constructed by directly pasting a wooden flooring material with a foamed polyurethane sheet about 2cm thick on the back side to the concrete floor. They have the disadvantage of impairing livability because they have poorer sound insulation properties than carpets.

[Problems to be Solved by the Invention] The present inventor completed the present invention as a result of daily research aimed at solving the above-mentioned problems and providing a wood-based flooring material with excellent sound insulation properties.

[Means for Solving the Problems] The present invention provides a sound-insulating wood-based material characterized in that a cushioning material made of a textured fiber mat coated with natural rubber or synthetic resin is adhered to the back side of a wood board. Related to flooring.

Hereinafter, the sound-insulating wooden flooring material of the present invention will be explained in detail with reference to the drawings. In FIG. 1, reference numeral 1 denotes a wooden board, and on the back side of this wooden board 1, a cushioning material 3 made of fiber mat with an uneven pattern 2 coated with natural rubber or synthetic resin is sequentially pasted.

Examples of the wood board 1 include plywood, particle board, hardboard, LVL (parallel plywood), etc., and a decorative layer can be formed by pasting a precious wood veneer or a decorative synthetic resin sheet on its surface, or by painting it. may be formed.

As the cushioning material 3, fibers such as polyester fibers, polypropylene fibers, nylon fibers, etc. are made into a mat shape using a needle punch method, and unevenness is formed thereon, and natural rubber, synthetic rubber, or adhesive material is used on the front, back, or both sides. It is preferable to apply a liquid material such as a synthetic resin having the following properties by spraying or applying with a roll or brush so that the unevenness does not disappear easily, in other words, the elasticity does not disappear during use. To maintain this elasticity,
It is preferable that the liquid material to be applied has elasticity when cured or dried. Further, the above-mentioned mat may be composed of one type of fiber, but it may be composed of two or more types of fiber (for example, 80% polyester fiber, 20% polypropylene fiber).
%) may be used in combination.

Note that the thickness is preferably 2 to 10 mm, but is not limited to this. If the thickness is too thin, the sound insulation effect will be poor, and if it is too thick, there will be economic problems, but when renovating a house, the floorboards are so thick that they become higher than the threshold, making it virtually impossible to install, or the floorboards Another drawback is that the floorboards sink a lot when walking on them.

A sheet 4 having sound insulating, damping, or buffering properties and an intermediate wooden board 5 may be inserted between the wooden board 1 and the buffer material 3.

In this case, the thickness of the wood board 1 and the intermediate wood board 5 is 2.5~
4.0 mm is preferred, but not limited to this. If the thickness is too thin, the rigidity of the floorboard will be a problem, and if it is too thick, it may not only increase the price but also cause problems during transportation and construction.

1. Examples of the sound insulation or vibration damping sheet to be pasted on the back side of the wooden board 1 include powdered PVC sheet, inorganic powder-filled rubber sheet, PVC sheet, etc., with a thickness of 0.8 to 2 mm.
Preferably. Further, the cushioning sheet may be any sheet having cushioning properties such as a natural rubber foam sheet or an olefin foam sheet, and the thickness thereof is preferably 1 to 2 mm.

Furthermore, if a perforated wooden board is used as the intermediate wooden board 5, the sound insulation properties will be further improved. The hole diameter of perforated wood board is 5 to 15
mm is preferable, but is not limited thereto. Although a single perforated wood board is effective, the sound insulation effect can be improved by bonding two perforated wood boards with their holes shifted.

Furthermore, as shown in Figure 3, a wooden board made by combining a surface wooden board, a sheet with sound insulation, vibration damping, or sound insulation properties, and an intermediate wood board, which are divided into smaller pieces, is smaller. It has better sound insulation properties than large-sized wooden boards that do not break.

This is thought to be because it becomes difficult for sound to propagate in the divided parts. The wood board cut into small pieces as described above has a loose tongue processing on the end surface that allows for slight bending, and a flexible hot plate is placed in the groove on the back side created by the tongue joint after hardening. They are joined by pouring melt resin 6, and the cushioning material 3 is pasted on the entire back surface.

[Example 1] On the back side of a decorative plywood board with a size of 30 cm x 80 cm and a thickness of 7.5 mm, polyester fibers were intertwined with a polypropylene base fabric using a needle punch method to create a convex pattern with a concave-convex pattern on the back side (5 mm thick). A desired flooring material was manufactured by pasting together cushioning materials (including the height of the convex portion).

[Example 2] Decorative plywood with size 30cm x 90cm, thickness 2.8mm, natural rubber foam sheet with thickness 2.0H, thickness 2.7m
m, on the back side of a perforated plywood board with a hole diameter of 10 mm, polyester fibers were intertwined with a polypropylene base fabric using a needle punch method, and the thickness was 5 mm (including the height of the bumps), so that a convex part with an uneven pattern appeared on the back side. ) were bonded together to produce the desired flooring material.

[Example 3] The wooden board, foam sheet, and perforated wooden board used in Example 2 were laminated in sequence, and then cut into pieces with a thickness of 7.5 mm.
Elongated rectangular plates with a width EfOmm and a length of 900 mm were manufactured, and five of these plates were slightly shifted in the vertical direction and joined using male and female grooves so that the planar shape became step-like. The male and female grooves are slightly bent at the joint, and are loosely joined to conform to the unevenness of the base.In addition, there is a hot glue that has some flexibility after curing in the groove on the back of the joint. They were joined by injecting melt resin. Then, on the entire back side, polyester fibers are intertwined with a polypropylene base fabric using a needle punch method, so that the back side has a convex pattern with a thickness of 5 mm (including the height of the convex part).
A desired flooring material was manufactured by pasting together the cushioning materials.

[Effect of the invention] The measurement results of the sound insulation properties (lightweight floor impact sound level) of the floor materials obtained in Examples 1 to 3 and the ordinary concrete slab surface are as shown in FIG. 4, and the floor materials of the present invention It has excellent sound insulation properties.

[Brief explanation of the drawing]

1 to 3 are cross-sectional views showing a sound-insulating wooden flooring material according to an embodiment of the present invention, and FIG. 4 is a diagram showing the sound-insulating properties of the flooring material shown in FIGS. 1 to 3. In the drawings, 1 is a wooden board, 2 is an uneven pattern, 3 is a cushioning material, 4 is a sheet having sound insulation, vibration damping or cushioning properties, 5 is an intermediate wooden board, and 6 is a hot melt resin. Patent applicant: Eidai Sangyo Co., Ltd.

Claims (3)

[Claims] (1) A sound-insulating wooden flooring material characterized by having a cushioning material made of a textured fiber mat coated with natural rubber or synthetic resin adhered to the back side of a wooden board. (2) Make sure that a sheet with sound insulation, vibration damping, or cushioning properties is attached to the back of the wooden board, an intermediate wooden board, and a cushioning material coated with natural rubber or synthetic resin to the uneven patterned fiber mat. Sound-insulating wood flooring. (3) The sound-insulating wood flooring material according to claim 2, wherein the intermediate wood board is a perforated wood board.