JPH04194167A - Directly stuck woody floor structure and its execution method - Google Patents

Abstract

PURPOSE:To facilitate execution by fixing face fasteners to the bottom of a woody floor board in parallel at specific intervals, sticking sound insulating buffer materials thereon and, at the same time, adhering thereto with the face fasteners fixed to the concrete floor. CONSTITUTION:Face fasteners II having loop-shaped engaging elements are fixed to the bottom of a woody floor board 5 in parallel at specific intervals and, at the same time, sound insulating buffer materials 4 are stuck the face fasteners II. While, face fasteners I having hook-like engaging elements are fixed to the surface of the concrete floor 1 in correspondence to the face fasteners II. The adherence of the woody floor board 5 to the concrete 1 is made at a touch. According to the constitution, a floor board that is easy to execute or reform the floor construction can be obtained.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is directed to floor structures of apartment complexes, single-family houses, hotels, schools, etc., and particularly to directly bonded wood floor structures using wood flooring as the floor finishing material. and its construction method.

(Prior Art) Apartment buildings are the mainstay of urban housing, but in recent years, noise from upper and lower floors and noise from neighbors in residential areas has become a major social problem, and various countermeasures have been taken.

Among them, a direct-attached floor structure in which wood flooring is attached to the subfloor using an adhesive such as epoxy resin through a sound-insulating buffer material such as non-woven fabric or foam is extremely easy and inexpensive to construct, and it also provides a certain level of soundproofing. It is widely used because it is expected to be effective.

(Problem to be solved by the invention) However, although the conventional direct-bonded floor structure is easy and practical to construct, it requires adhesives and has a poor working environment. After installation, it is extremely difficult to modify or replace. Furthermore, a floor structure constructed using this construction method cannot be expected to have sufficient soundproofing effects. In particular, recently there has been a strong desire to use wood-based flooring materials instead of carpets to create a high-quality wood texture. Even if combined, there is little effect on sound insulation from impact sounds on the upper floors, such as footsteps and floor impact sounds caused by movement of furniture. For this reason, various efforts have been made in the past to bring sound insulation effects to wooden flooring materials. When installed on-site, there were problems such as not achieving the desired soundproofing effect.

Therefore, it is an object of the present invention to provide a directly bonded wooden floor structure that is easy to modify and replace the flooring material after construction, and has excellent soundproofing properties.

A further object of the present invention is to provide a method for constructing a directly bonded wooden floor that is extremely easy to construct even by unskilled workers, does not use adhesives, and has excellent workability.

(Means for Solving the Problems) The present inventors conducted a thorough study on conventional directly connected wooden floor structures, and found that in the conventional directly connected construction method, a sound-insulating buffer member is firmly bonded to the entire surface of the floor. Second, we discovered that the cushioning member is bound to the subfloor, resulting in a decrease in sound insulation properties, and we further investigated floor structures and construction methods in which the buffering member is not constrained to the subfloor, and as a result, we arrived at the present invention. . That is, the direct-attached wooden floor structure of the present invention has a hook-and-loop fastener (I) having a large number of hook-shaped engagement elements attached to the subfloor at predetermined intervals and parallel to each other, and a hook-and-loop fastener (1) on the back side. ) A wooden hook-and-loop fastener (■) having loop-shaped engaging elements attached parallel to each other at the same intervals as the hook-and-loop fasteners (■) with a sound-insulating buffer member attached between adjacent hook-and-loop fasteners (n). This is a direct-attached wooden floor structure characterized in that the flooring materials are joined via the hook-and-loop fastener (1) and the hook-and-loop fastener (II).

Furthermore, the method for constructing a directly attached wooden floor of the present invention is to attach hook-and-loop fasteners (1) having a large number of hook-shaped engaging elements at predetermined intervals and parallel to each other on the subfloor surface, and then attach the hook-and-loop fasteners (1) A wooden floor in which a sound-insulating buffer member is attached to the back surface between hook-and-loop fasteners (n) having loop-shaped engagement elements parallel to each other at the same intervals as in 1) and the adjacent hook-and-loop fasteners (It). Place the flooring material on the subfloor so that the hook-and-loop fastener (II) attached to the back side of the flooring comes into contact with the hook-and-loop fastener (r) attached to the subfloor, and then remove the flooring material. This is a construction method for direct-laid wooden floors, which is characterized by pressing from the top.

(Function) According to the present invention, the concrete floor base and the wooden flooring material are joined with hook-and-loop fasteners, and the areas other than the hook-and-loop fasteners are brought into contact with the sound-insulating cushioning member on the subfloor surface, so that construction work can be easily performed. Flooring can be easily modified or replaced. Furthermore, although the wooden floor structure of the present invention has the effect of improving sound insulation as shown in the examples, such findings are completely unexpected from conventional knowledge.

The reason for this effect is not clear, but the hook-shaped engaging element of the hook-and-loop fastener attached to the back side of the wood flooring material (or the concrete flooring surface) is stuck to the concrete flooring material (or the woody flooring material). The sound-insulating cushioning member that engages with the loop-shaped engaging element of the hook-and-loop fastener and is attached to the area other than the hook-and-loop fastener on the wooden flooring material simply adheres to the concrete floor subsurface without being restrained. It is presumed that the formation of a large number of fine voids between the subfloor and the flooring material produces a large dynamic damper effect, resulting in an excellent sound insulation effect.

(Example) Next, an example of the wooden floor structure of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view showing an example of the wooden floor structure of the present invention, in which a hook-and-loop fastener (1) in which a large number of hook-shaped engagement elements 2 are provided on one surface of a base material 3 on a concrete floor base 1, A hook-and-loop fastener (If
) and a wooden flooring material 5 to which a sound-insulating buffer member 4 is attached.

The hook-and-loop fastener (1) having a large number of hook-like engaging elements 2 on one surface of the base material 3 is an integrally molded plastic-family hook-and-loop fastener obtained by a molding method such as plastic extrusion, or a knitted fabric made of filament fibers. A woven hook-and-loop fastener is used.

The hook-shaped engagement element may have any shape as long as it can be easily engaged with the loop-shaped engagement element, and may be hook-shaped, mushroom-shaped, spear-shaped, umbrella-shaped, or the like. The height of such a hook-like engagement element is usually 0.5
-6IIllll, preferably 15-4a+m is suitable.

If the height of the hook-shaped engagement element is high, there is a risk that the engagement element will be deformed when an impact load is applied to the upper part of the flooring, and if it is low, the engagement will be insufficient.

The base material 3 of the hook-and-loop fastener having the hook-shaped engagement element is preferably one that is less deformable in order to be securely fixed to the concrete floor subsurface.

For plastic type hook-and-loop fasteners, the appropriate thickness of the base material is usually 0.3 to 1 mm. With related hook-and-loop fasteners,
It is usually preferable to add a liquid polymer or the like to the back side of the base material to improve its mechanical strength. The width of a hook-and-loop fastener is usually 2 to 6 cm.

The hook-and-loop fasteners (1) are pasted parallel to each other on the concrete floor subsurface. Usually 8-90cm, preferably 1
They are pasted at intervals of 0 to 40 cm. Velcro fastener (I)
If the spacing is too narrow, the sound insulation effect will decrease as the sound insulation will be restricted to the wood flooring material or the subfloor. - If the spacing between the blades is too wide, there will be concerns about the stability of the grip, and the feeling of walking will be poor. The direction of attachment of the hook-and-loop fastener may be arbitrary with respect to the longitudinal direction of the flooring material, but from the viewpoint of workability and walking feel, it is preferable that the hook-and-loop fastener be attached parallel to the end of the flooring material.

The hook-and-loop fastener (
The hook-and-loop fastener (II) having a loop-shaped engaging element that engages with the hook-like engaging element (II) that engages with the above-mentioned hook-shaped engaging element can be used.

The strength and density of the engagement element are adjusted so that the engagement strength with the hook-like engagement element is sufficiently large.

Further, the length of the loop-shaped engagement element is preferably the same as or longer than the length of the hook-shaped engagement element. Generally, a length of 1 to 2 times the length of the hook-like engagement element is suitable.

In order to have excellent shape retention properties due to repeated detachment and to reduce sinking when walking, a nonwoven fabric or knitted fabric with a thickness of 2 to 15 g+, usually 3 to 10 a+m, and a medium diameter of 10 to 50 cm is used. .

The hook-and-loop fastener (II) may be attached directly to the back surface of the wood-based flooring material, or may be attached via a foam or rubber layer. The hook-and-loop fasteners (n) are attached to the back side of the wood-based flooring at the same intervals as the hook-and-loop fasteners (1) attached to the concrete floor subsurface. A sound-insulating buffer member 4 is attached between the hook-and-loop fasteners (1) attached to the back side of the wooden flooring.

The sound-insulating cushioning material 4 may be a foam made of polyethylene, polyurethane, polystyrene, various rubbers, etc. alone or a combination thereof, or a material in which fibers of wood, elastomer, metal, etc. are entangled in a three-dimensional manner. The shape is preferably flat, wavy, uneven, or the like.

In particular, isoprene rubber, butyl rubber, chloroprene rubber,
A rubber foam made of one or more types of synthetic rubber such as butadiene rubber, styrene-butadiene rubber, and nitrile rubber, or natural rubber, usually a textured sheet, is appropriately used. The thickness of such a cushioning material is preferably about the same as the thickness of the engaging element in the engaged state.

As the wooden flooring material 5, various commercially available flooring materials can be used.

For example, parquet flooring with a thickness of 6 to 8 mm called prefinished package flooring, natural wood decorative flooring with a thickness of 6 to 12 mm, or cork tile flooring with a thickness of 3.2 to 15 mm are used. It will be done. Parquet flooring and cork tile flooring have insufficient rigidity, so if they are joined to a concrete floor using hook-and-loop fasteners, there is a risk that the floor will sag when a load is applied to the floor. Therefore, when such a flooring material is used, it is preferable to attach and integrate a plate-like material such as lauan plywood, particle board, or a sound-insulating buffer material to the lower surface of the flooring material in order to increase the rigidity of the flooring material.

When using natural decorative plywood that has sufficient rigidity as a flooring material, there is no need to use a plate-like body such as lauan plywood. In addition, in order to obtain sufficient sound insulation, it is preferable to use a flooring material with a sound insulation structure, such as a sound insulation sheet sandwiched between plywood sheets or grooves formed in the plywood sheets.

Next, the construction method of the wooden floor structure of the present invention will be explained.

First, hook-and-loop fasteners (r) having hook-like engagement elements are pasted on the concrete floor subsurface 1 at intervals of 10 to 40 cm. At this time, if parallel lines are drawn on the floor subfloor in advance, the work will be easier and the hook-and-loop fastener (T) can be reliably attached in parallel.

On the other hand, hook-and-loop fasteners (I
Paste I). At this time, it is preferable that the mating portion of the flooring material be located at the center of the hook-and-loop fastener in the width direction.

Also at this time, it is preferable to draw a line on the back side of the flooring material in advance. Next, a sound-insulating buffer member 4 is pasted between the hook-and-loop fasteners (II).

A flooring material with a hook-and-loop fastener and a cushioning member attached to the back side is placed so that the hook-and-loop fastener (n) attached to the flooring engages with the hook-and-loop fastener (1) attached to the concrete floor base. Attach 5 to the subfloor.

At this time, as shown in Figure 2, with the center part of the flooring material bent upwards, hook the hook-and-loop fasteners (I) and (It) together, and hold the flooring material in front of you with your knee to prevent it from moving. However, by pressing the upwardly bent central portion, the real portions can be reliably fitted.

In addition, to finish the final flooring material 10, as shown in Fig. 3, the end is brought into contact with the book block 11 and the front end is folded upward.
The last real part can be reliably fitted by pressing the adjacent flooring material while holding it down with your knees or the like.

Example 1 Plastic hook-and-loop fastener C with a width of 25 mm and having a large number of hook-shaped engagement elements on a concrete base with a thickness of 150 mm C manufactured by Kuraray Co., Ltd. Product name: Magi Lock L-90
10] were attached at 15 cm intervals using an adhesive. On the other hand, 3cm thick decorative plywood and 4.5mm thick waterproof plywood (7.5cm+n grooves with a depth of 35ffi1 in the width direction at the bottom of the plywood)
8.5mm thick, 30ciX
2 lengths at 25cm intervals on the back side of a 90cm size flooring material
2 mm thick and 4 cm wide with a loop-shaped engagement element of mm
A hook-and-loop fastener (II) made of a nonwoven fabric was attached. A buffer member made of a 6 mm thick uneven sheet of styrene-butadiene foam rubber was attached between adjacent hook-and-loop fasteners (n). The three flooring materials to which the above-mentioned hook-and-loop fasteners (n) and cushioning members are attached are joined to a concrete base so as to engage with the hook-and-loop fasteners (1) attached to the concrete base to create a floor with a size of 90 x 90 cm. It was used as a material. As a result of measuring the floor impact sound of the above floor structure in accordance with the "Measurement method of floor impact sound level at building sites" stipulated in JISA 1418, the light floor impact sound level was L-48 as shown in Figure 4. Met.

Examples 2 to 4 Three types of intervals were used for the hook-and-loop fasteners (I) to be attached to the concrete base: 8 cm (Example 2), 85 cm (Example 3), and 43 cm (Example 4). On the other hand, hook-and-loop fasteners (If) were attached to the back surface of the floor material at the above-mentioned intervals, and the same buffer member as in Example 1 was attached between adjacent hook-and-loop fasteners. When the lightweight floor impact sound level was measured in the same manner as in Example 1 for the above three types of floor structures, it was found that Example 2 was L-50, Example 3 was L-50, and Example 4 was L-50.
-49.

Comparative Example 1 The lightweight floor impact sound level was measured at L-60 for the same floor structure as in Example 1, except that a floor material without a sound-insulating buffer member attached to the back surface was used. In addition, the hook-and-loop fastener had a large sinkage in the middle, giving it a poor walking feel.

Comparative Example 2 The lightweight floor impact sound level was measured for a floor structure in which the flooring material of Example I and a concrete base were bonded together with adhesive via the cushioning member made of the uneven sheet of foam rubber used in Example 1. It was -57.

(Effects of the Invention) The direct-attached wooden floor structure and its construction method of the present invention require skill and are non-trivial, such as applying an adhesive to the entire surface of the subfloor and adhesively fixing the wooden flooring material. Instead of an efficient method that incurs high costs, we have adopted a hook-and-loop fastener that has hook-shaped engagement elements that are affixed to the floor subfloor at required intervals using an adhesive sheet or adhesive, and has cushioning material and loop-shaped engagement on the back side. Unit flooring materials can be assembled one after another by pressing flooring materials to which hook-and-loop fasteners having elements are adhered in parallel.

In addition, by attaching sound-insulating cushioning material and hook-and-loop fasteners in parallel to the back side of the flooring material, a product that is resistant to fatigue and has excellent sound insulation properties can be obtained, and a stable walking feeling and sound insulation effect can be obtained for a long time. Crossed and maintained.

Even if a flooring material in which a hook-and-loop fastener with a hook-shaped engagement element is attached to the back side in parallel with a cushioning material is joined to a hook-and-loop fastener with a loop-shaped engagement element attached to the floor subfloor, basically The effect remains the same.

However, with conventional adhesive construction methods, a curing period of one day or more is required for the adhesive to harden, but the floor structure of the present invention can be used as a floor from the day it is constructed. , and when remodeling, using the adhesive construction method requires tools such as a Sangu to remove the flooring and adhesive, and dust when removing the adhesive becomes a problem. In contrast, according to the present invention, renovation can be easily carried out without such problems.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the directly attached wooden floor structure of the present invention, Fig. 2 is a perspective view showing the method of joining the flooring material to the subfloor, and Fig. 3 is a diagram showing how the ends of the flooring material are arranged. FIG. 4 is a graph showing floor impact sound insulation performance. 1...Concrete floor base 2...Hook-shaped engagement element 3...Base material 4...Buffer member 5...Wood flooring material ■...Loop fastener having hook-shaped engagement element■ ... Hook-and-loop fastener having a loop-shaped engagement element Patent applicant Rira Co., Ltd. Toyo Rubber Industries Co., Ltd. Agent Patent attorney Ken Honda No. 1
figure

Claims (1)

[Claims] 1. A hook-and-loop fastener (
The adjacent hook-and-loop fastener (I) is a hook-and-loop fastener (II) having loop-shaped engagement elements attached on the back side at the same intervals as the hook-and-loop fastener (I) and parallel to each other.
I) Wooden flooring with sound-insulating buffer material stuck between the
A directly attached wooden floor structure characterized by being joined via the hook-and-loop fastener (I) and the hook-and-loop fastener (II). 2. After pasting hook-and-loop fasteners (I) having a large number of hook-shaped engaging elements on the floor subfloor at predetermined intervals and parallel to each other, Velcro fasteners with loop-shaped engagement elements (
II) and the adjacent hook-and-loop fastener (II), a wooden floor material with a sound-insulating buffer member attached to the back surface is placed between the hook-and-loop fastener (II) attached to the back surface of the floor material and the hook-and-loop fastener (II) attached to the back surface of the floor material. A method of constructing a directly attached wooden floor, which is characterized in that the flooring material is placed on the subfloor surface so as to come into contact with the hook-and-loop fastener (I) affixed to the surface of the floor, and then the flooring material is pressed from above.