JPH02311659A - Wooden floor member - Google Patents

Abstract

PURPOSE:To suppress the warp and vibration and improve the using feeling by forming a number of parallel cut grooves, specifying interval, onto the bottom surface of a wooden basic plate and laminating a wooden decoration plate onto the upper surface and a soft sheet onto the undersurface. CONSTITUTION:A wooden decoration plates 2 is laminated through a soft vibrationproof sheet 5 onto the surface of a wooden basic plate 1 made of plywood. Then, a number of parallel cut grooves 3 are formed on the bottom surface of a basic plate 1, so that the interval between the grooves is 5-30mm or twice the thickness of the basic plate 1 or less. Then, a soft sheet 4 having the less elongation for tensile strength is laminated onto the undersurface of the basic plate 1, and a cut groove 3 is prevented from being opened. Therefore, the cut groove 3 prevents warp, and the proper deflection performance is provided by eliminating rigidity, and the using feeling can be improved, and the propagation of vibration can be suppressed markedly.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a wood-based flooring material, and more specifically, although it is made of wood, its warpage is suppressed, rigidity is greatly reduced, and flexibility is also imparted. This is related to the technology to be used.

[Prior Art] In recent years, concrete single-unit housing units such as condominiums have been transitioning from carpets to wood-based flooring materials as floor finishing materials. This is thought to be due to reasons such as hygienic and health problems such as the growth of dust mites on carpets, troublesome maintenance such as cleaning, and people's admiration for wood. demand is increasing.

[Problem to be solved by the invention] By the way, wood-based flooring materials tend to warp,
In addition, there was a problem in that the high rigidity made it easy for sound to propagate.

The present invention was made in view of such problems,
The aim is to create a wood-based flooring material that can suppress warping, greatly reduce rigidity, and provide flexibility, even though it is made of wood, and can solve the problems associated with wood-based flooring materials. Our goal is to provide the following.

[Means for Solving the Problems] The wooden flooring material of the present invention has one wooden decorative board 2 on the surface layer of the wooden substrate 1! A large number of grooves 3 are formed on the bottom side of the wooden substrate 1.
are arranged in parallel, and the interval between these grooves 3 is equal to the thickness T of the wooden substrate 1.
It is characterized by laminating a soft sheet 4 which is approximately twice the size of the wood substrate 1 and prevents the cut groove 3 from being opened on the bottom surface of the wooden substrate 1.

Further, the cut grooves 3 are characterized in that the intervals between them are approximately 5.0 to 30 mm.

[Function] In this way, the wooden decorative board 2 is laminated on the surface layer of the wooden substrate 1, and a large number of grooves 3 are arranged in parallel on the bottom side of the wooden substrate 1,
By making the intervals between these kerfs 3 approximately twice the thickness T of the wooden substrate 1, warping of the wooden substrate 1 is prevented by the multiple kerfs 3, and the intervals between the kerfs 3 The thickness is approximately twice the thickness T, which eliminates the rigidity of the wooden substrate 1, but rather gives flexibility to the wooden substrate 1, suppresses the propagation of vibrations, and provides a comfortable usability even though it is made of wood. By laminating a soft sheet 4 that increases the height and also suppresses the opening of the kerf 3 on the bottom surface of the wooden substrate 1, the kerf 3 is prevented from widening without imparting sufficient flexibility to the wooden substrate 1. , the deformation of the flooring material caused by arranging a large number of grooves 3 in parallel is suppressed.

Furthermore, by setting the intervals between the kerfs 3 to be approximately 5.0 to 30 mm, warping at the kerfs 3 is suppressed, and while the rigidity of the flooring material is suppressed, flexibility is suitably achieved, and the usability is improved. It turned out to be good.

[Example] Embodiments of the present invention will be described in detail below based on the drawings.

A wooden decorative board 2 such as a veneer (sliced veneer) having wood grains obtained by thinly slicing wood is laminated on the surface layer of a wooden substrate 1 with a soft damping sheet 5 interposed therebetween that absorbs vibrations. The wooden board 1 is made of plywood, and the plywood has 3 ply and 5 ply.
A material such as ply or 7 ply is used. The thickness T of such a wooden board 1 made of aluminum is 2.51 to 15II.
A material with a thickness of about III+ can be used. On the bottom surface of the wooden substrate 1, cut grooves 3 are arranged substantially parallel to each other using saw blades.

This kerf 3 has a thickness of about 1.61 to 3.2 mm, and the opening distance between the kerfs 3 is about 5.0 LII to 30 mm. The most preferable value is about 10 am.

Further, the thickness of the wood plywood 1 of the cut groove 3 is approximately 1!2 of f8T. In other words, the interval between the kerfs 3 is the thickness T of the wooden substrate 1.
About twice as many people have done so. For example, a soft sheet 4 having a high sound insulation function is laminated on such a wooden substrate 1, and this soft sheet 4 suppresses the opening of the kerf 3.

The soft sheet 4 is preferably a peeled sheet or a low foam sheet with a rubber hardness of about 10° to 90".
A rubber hardness of approximately 70° to 70° is preferable, and the soft sheet 4 is preferably as soft as possible and has little elongation under tension. That is, as shown in FIG. 2, although pressure is applied to the wooden substrate 1 through the wooden decorative board 2 and the damping sheet 5, the grooves 3 of the wooden substrate 1 are not opened against the load from above. It is fixed with a soft sheet 4.

Therefore, the warping of the flooring material A is prevented by the multiple kerfs 3, and the gap between the kerfs 3 is approximately twice the thickness T of the wooden substrate 1. This eliminates the rigidity of the flooring material A, eliminates the stiffness of the flooring material A, and rather imparts flexibility to the wooden substrate 1, thereby greatly suppressing the propagation of vibrations. In this way, although it is made of wood, it enhances the feeling of use, and by laminating the soft sheet 4 that prevents the cut grooves 3 from being opened on the bottom surface of the wooden substrate 1, sufficient flexibility is imparted to the wooden substrate 1. This prevents the kerfs 3 from widening, thereby suppressing the deformation of the floor material A caused by arranging a large number of kerfs 3 in parallel.

By the way, the soft sheet 4 is a mixed sheet in which a high specific gravity substance such as valume sulfate, valume bicarbonate, lead powder, copper powder, etc. is mixed into a base material such as polyethylene, EVA, urethane, natural rubber, etc. is preferably 1.0 or more, that is, a specific gravity of about 1.5 to 3.0 is used.

The sheet thickness is about 11 to 5 m, but usually 2
~3II11 is used. However, by using such a flexible sheet 4, it can be laid so that it blends better into the flooring, such as a concrete slab.

Then, as shown in FIG. 3, the back surface of the soft sheet 4 is embossed to form an embossed part, and the depth of the embossed part is about 0.1 mm - 0.7 to 0.8 mm, that is, the soft sheet 4 The thickness T is about 50% to 10%, and a fiber sheet 6 such as non-woven fabric, cloth, or net is adhered to the back side of the soft sheet 4 to absorb unevenness of the flooring such as a concrete slab. Alleviates and absorbs walking noise (squeaks),
This is to improve the soundproofing effect. Such a fiber sheet 6 provides a reinforcing function, thereby further preventing the floor material A from warping.

FIG. 4 shows another embodiment, in which a foam sheet 7 made of foamed resin, polyethylene resin, EVA resin, natural rubber, etc., made of LAM-101, is laminated and adhered to the lower layer of the soft sheet 4 to provide sound insulation and This improves the feeling of walking, and to do this, as shown in Figure 5, use Air Step 8 [Star Rubber Industries Co., Ltd.]. ! ], natural rubber, open foam embossed sheets, etc. 4.0 to 8.0III11 may be laminated and bonded. 9 may be laminated and bonded.

FIGS. 7 and 8 show still another embodiment, in which small pieces 10 of a piece-like wooden substrate 1 are connected by a soft sheet 4. The shape can be changed in various designs.

Figures 9 and 10 show the other side of the construction, where the wooden substrates 1 were actually joined together, that is, the flooring A was connected without nailing or gluing, and the construction of the entire floor surface was completed. by the way,
Construction is carried out by inserting the booklet 11 into the opening between the wall 12 and the wall 12. Then, when the adhesive is injected during the actual connection,
Can be constructed as if it were a single piece. If the excess adhesive is allowed to enter the groove 3, the adhesive does not need to come out on the surface.

When installing the flooring material A, if a gap is created between it and the flooring substrate, a spacer 13 as shown in FIG. 11 may be inserted into the gap. The spacer 13 has a thickness of 0.
．． 1-1. A Czom sound insulating sheet of approximately 30a+a+X150mm may be pasted with double-sided adhesive tape 14 (indicated by diagonal lines) on the entire back surface as shown in FIG. 12, or it may be partially pasted as shown in FIG. Figure F114 shows yet another construction example, in which flooring material A is laid on top of the existing carpet 15 by actual bonding. In the method, the soft sheet 4 may be omitted. This construction method can be applied to general wood-based flooring materials that do not have the cut grooves 3.

[Effect of the invention 1] In short, the present invention has a wooden decorative board laminated on the surface layer of a wooden substrate, a large number of kerfs are arranged in parallel on the bottom side of the wooden substrate, and the intervals between these kerfs are set according to the thickness of the wooden substrate. Since the thickness of the wood substrate is approximately twice that of the wood substrate, the warping of the wood substrate is prevented by the multiple cut grooves, and the interval between the cut grooves is made approximately twice the thickness of the wood substrate, thereby eliminating the rigidity of the wood substrate. Rather, it is a soft sheet that gives flexibility to the wooden substrate, can greatly suppress the propagation of vibrations, enhances the usability despite being made of wood, and also suppresses changes in the spacing of the grooves on the bottom of the wooden substrate. 8tNI
Therefore, while imparting sufficient flexibility to the wooden substrate, widening of the kerf grooves is suppressed, and there is an advantage that deformation of the flooring material caused by arranging a large number of kerf grooves in parallel can be suppressed.

In addition, since the spacing between the kerfs is approximately 5.0 to 3011 IIO, the kerfs suppress warpage and the rigidity of the flooring material, while providing suitable flexibility and providing a good feeling of use. be.

[Brief explanation of drawings]

Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is an enlarged sectional view of the same as above, Fig. 3 is a sectional view of another embodiment of the same as above, Figs. 4, 5, and 6 is a sectional view of another embodiment same as above, No. 7
8 and 8 are plan views of other embodiments of the above, FIG. 9 is a sectional view of another construction example of the above, FIG. 10 is a partially enlarged sectional view of the same, and FIG. 11 is a plane of the spacer of the same. 12 is a rear view of the same as above, FIG. 13 is a rear view of another embodiment of the same as above, and FIG. 14 is a sectional view of another construction example of the same as above, 1 is a wooden substrate, 2 is a wooden decorative The board, 3 is a cut groove, and 4 is a soft sheet. Agent Patent Attorney Ishi 1) Chief 7 Figure 7 Figure 8 Figure 11! Figure 12 Diagram Z+3 procedural amendment (
spontaneous) 1. Display of the case 1999 patent JEiff H31967 No. 2, name of the invention Wood flooring 3, person making the amendment Relationship to the case Patent applicant address Address 1048 Kadoma, Kadoma City, Osaka Prefecture Name (58
3) Matsushita Electric Works Co., Ltd. Representative: Toshio Miyoshi 4, Agent postal code: 530 5, Date of amendment order: 6, Number of claims increased by amendment: None 7, Subject of amendment 1) Scope of claims in the description We will correct it as follows. (1) A wooden decorative board is laminated on the surface layer of the wooden substrate, and a large number of grooves are arranged in parallel on the bottom side of the wooden substrate, and the intervals between these grooves are set to m, which is the thickness of the wooden substrate. A wood-based flooring material characterized by laminating soft sheets that suppress the formation of kerfs on the bottom surface of the floor. 2) The wooden flooring material according to claim 1, characterized in that
Delete "approximately twice" and insert "less than twice" in lines 15 and 16 of page 3 of the above, line 5 of page 5 of the above, and line 15 of page 9 of the above. I will. 3) Delete "Usable." and insert "Usable." on page 4, line 18 of the same page. 4) Delete "Thickness" and insert "Medium groove" in the 20th line of page 4 of the same page. 5) Insert "Depth" after "Groove 3" in the third line of page 5 of the same page. 6) “no” after “specific weight” on page 6, line 15 of the same page.
I will insert. 7) Delete "0.1-1.0" and insert "0.1-3.0" on page 4, line 18 of the same page.

Claims (2)

[Claims] (1) A wooden decorative board is laminated on the surface layer of the wooden substrate, and a large number of grooves are arranged in parallel on the bottom side of the wooden substrate, and the interval between these grooves is approximately twice the thickness of the wooden substrate, A wood-based flooring material characterized by laminating soft sheets that suppress the formation of kerfs on the bottom surface of a wood substrate. (2) The wood-based flooring material according to claim 1, characterized in that the intervals between the kerfs are approximately 5.0 to 30 mm.