JPH0814192B2 - Sound insulation floor material for direct application - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to a flooring material used as an interior material for a building,
In particular, the present invention relates to a sound insulation floor material for direct attachment, which is formed by connecting and fixing a plurality of rectangular members.

<< Prior Art >> Conventionally, a floor material to be joined by a fruit is designed so that a small gap is formed on the back surface along the fruit so that the surface of the floor material is not scratched when the floor material is stuck on a horizontal surface. Further, as a floor construction method for a building, there is a method in which a rectangular wooden member is displaced in the long side direction to form a geese pattern. In recent years, in order to improve its workability, a method of manufacturing a single floorboard by connecting a plurality of rectangular members in advance with the actual processing portion on the long side and then filling the gap in the back surface with an adhesive agent Proposed (for example, Japanese Examined Patent Publication No. 49-35769, Japanese Patent Laid-Open No. 59-59
-85067 and Jitsukai Sho 60-51218).

However, among these, as described in JP-B-49-35769, a method of fixing adjacent rectangular members by filling hot melt adhesive or urethane resin adhesive over the entire length of the gap on the back surface of the connecting portion. In this case, since the amount of adhesive used is large, the manufacturing cost is high.

Further, since the direct-bonding sound-insulating flooring material obtained by the conventional manufacturing method has the connecting portion firmly fixed by the adhesive over the entire length, it is possible to remove the connected rectangular member without damaging the actual portion. Have difficulty. Therefore, for example, in the final setting of floor construction, it is impossible to adjust the vertical displacement of the rectangular member, and when one rectangular member is required, the cutters and the like connected to the male and the like There is also a drawback in construction that the remaining member that has been cut must be cut at, and it cannot be used in other places.

On the other hand, in the case of the method of filling the resin adhesive in the concave portion provided on the lower surface side of the floor material as described in JP-A-59-85067 and JP-A-60-51218, the connecting portion is Although it can be bent in the direction of the upper surface, it is difficult to bend in the direction of the lower surface, and there is a drawback that it lacks flexibility.

Therefore, as a result of extensive studies conducted by the present inventors to solve the above-mentioned drawbacks, as a method for connecting and fixing rectangular members, instead of filling and fixing an adhesive in the connecting portion gap on the back surface of the floor material,
A plurality of linear kerfs having a depth reaching the real part are provided in the width direction of the back surface of the rectangular member, and the vicinity of the center of the floor material thickness where the kerf and the real part intersect is fixed by a flexible fixing means. In this case, it is possible to improve the flexibility of the connecting portion and improve the followability of the concrete slab against unevenness, reduce the amount of adhesive used, and also facilitate the removal of the rectangular member, It has been found that the rectangular member can be adjusted in the width direction and the vertical direction, and the present invention has been reached.

<< Problems to be Solved by the Invention >> Therefore, an object of the present invention is to make it possible to follow the unevenness of the concrete slab without causing a scratch on the surface of the floor material by making the flexibility of the connecting portion sufficient. The purpose of the present invention is to provide a sound-insulating flooring material for direct attachment, in which the fixed rectangular member can be easily removed and the final fitting in floor construction can be easily adjusted.

<< Means for Solving the Problem >> The above object of the present invention is to provide a concave portion formed deeper than the length of the male protrusion provided on one long side and the male protrusion provided on the other long side. A rectangular member having a real part having a gap on the back surface side when joined and a plurality of kerfs linearly provided in the back surface short-side direction at a depth reaching the real part. At least two of the rectangular members are connected by the real part on the long side of each rectangular member so that the kerfs of the rectangular members form a straight line, and the intersecting part of the kerf and the real part. Was achieved by a sound-insulating floor material for direct attachment, characterized in that the vicinity of the center of the thickness of the floor material is fixed by an adhesive and / or a plastic rod-shaped member, and has a cushion in the lower layer.

Hereinafter, the sound-insulating floor material for direct attachment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing an example of a sound insulation floor material for direct attachment of the present invention.

FIG. 2 is a diagram showing an example of a fixing portion of the floor material of FIG.

FIG. 3 is an enlarged sectional view of a real part and a fixed part of the flooring material of the present invention.

 FIG. 4 is an enlarged view of the fixing portion of the flooring material of the present invention.

The floor material of the present invention is a floor material in which at least two rectangular members are connected by a real portion on the long side of the rectangular members, and the shape of the floor material is not particularly fixed.

In the figure, reference numeral (1) is a sound-insulating floor material for direct attachment of the present invention, and four rectangular members (2) that have been actually processed are sequentially shifted in the long side direction so as to form a geese pattern. Are joined together.

Reference numeral (3) denotes a plurality of kerfs linearly provided in the direction of the short side of the rear surface of the rectangular member at a depth reaching the real part, and in each rectangular member (2), the kerfs (3) form a straight line. Are linked together.

The cut grooves (3) may be provided at right angles to the long side of the rectangular member as shown in FIG. 2 (a), but as shown in FIG. 2 (b). It may be provided so as to have an arbitrary angle.

The depth of the kerf (3) is set to reach the real part so that the fulcrum of the bending of the connecting part is located at the projecting end of the male real part. As a result, when the floor material is laid directly on the concrete slab, the floor material follows the unevenness of the concrete slab, and therefore, the surface of the floor material hardly causes eye gaps. This effect is ensured by providing an adhesive and / or a plastic rod upper member (5) described below near the center of the floor material thickness as shown in FIG. That is, without the adhesive and / or the plastic rod-shaped member (5), when bent in a convex shape at the connecting portion, the lower portion of the connecting portion is liable to bend, so that a large eye gap easily occurs on the surface portion. In particular, when the adhesive is embedded in the gap (6) over the entire length of the lower portion in the longitudinal direction of the connecting portion, the gap width at the lower portion of the connecting portion does not decrease, so that a large gap is generated on the upper surface of the floor material.

The number and width of the cut grooves (3) are appropriately determined depending on the material of the floor material, the connecting strength between the rectangular members (2), the flexibility of the connecting portion, the type of fixing means described below, and the like. It is preferably determined in consideration of the vertical followability with respect to unevenness, soundproofing performance, and the like.

Reference numeral (4) is a cushioning material. The cushioning material (4) can be appropriately selected and used from publicly known materials such as polyolefin such as polyethylene and the like, foam such as polystyrene and polyurethane, sound insulation sheet, and plastic felt.

Reference numeral (5) is a fixing means for fixing a portion where the real portion and the cut groove (3) intersect, and various adhesives such as urethane resin adhesive and hot melt adhesive, and a plastic rod-shaped member. It can be used by appropriately selecting from the above.

Further, the fixing means (5) may be provided at all the portions where the connecting portion and the kerf (3) intersect, but in consideration of the connecting strength between the respective rectangular members, the flexibility of the connecting portion, etc. It can be appropriately omitted.

Reference numeral (6) is a gap that is conventionally provided on the back surface along the actual direction.

 Next, the method for manufacturing the flooring material of the present invention will be described in detail.

A rectangular member having a male part in which the length of the convex part is formed shorter than the depth of the concave part of the male and female part, and a real part composed of the female part formed on the other long side deeper than the length of the convex part of the male part. A plurality of kerfs (3) having a depth reaching the real part are linearly provided in the direction of the short side of the back surface of (2), and then each rectangular member (so that the kerfs (3) are located on the same line). While adjusting 2), connect with the real part on the long side.

When forming a geese pattern, as shown in FIG. 2, the rectangular members (2) are sequentially shifted in the long side direction so that the cut grooves (3) of the rectangular members (2) form the same line. Configure.

Next, after fixing the vicinity of the center of the floor material thickness at the portion where the real part and the kerf (3) intersect with each other by the fixing means (5), the cushioning material (4) is attached and the sound insulation for direct attachment of the present invention is attached. Get the floor material.

The obtained sound-insulating floor material for direct attachment can be easily cut without damaging the real part by cutting the cushioning material attached to the back together with the fixing means along the connecting part with a knife or a cutter. You can Therefore, the detached rectangular member can be used at another place, and the vertical displacement of the connected rectangular members can be easily adjusted, which is excellent in workability.

<< Effects of the Invention >> As described in detail above, the sound insulation floor material for direct attachment of the present invention is
Since there is a void inside the actual connection and the bending fulcrum is located at the male tip of the male part, the connecting part is flexible, and the followability of the concrete slab on which the floor material is laid to the solid surface is good. There will be no large gaps in the surface of the material.

Further, the flooring material of the present invention does not require a large amount of the adhesive unlike the conventional flooring material in which a hot melt adhesive or the like is filled over the entire length of the connecting portion, so that the flooring material is easy to manufacture and the production cost is low. Is also cheap.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a sound-insulating floor material for direct attachment of the present invention. FIG. 2 is a diagram showing an example of a fixing portion of the floor material of FIG. FIG. 3 is an enlarged sectional view of a real part and a fixed part of the flooring material of the present invention. FIG. 4 is an enlarged view of the fixing portion of the flooring material of the present invention. 1 ... Floor material 2 ... Rectangular member 3 ... Cutting groove 4 ... Cushioning material 5 ... Fixing means 6 ... Gap

Claims (1)

[Claims] 1. A male fruit provided on one long side and a female fruit having a recess formed deeper than the length of the convex part of the male provided on the other long side, when joined. At least two rectangular members each having a real part having a gap on the back surface side and a plurality of kerfs linearly provided in the direction of the short side of the back surface at a depth reaching the real part are the long sides of each rectangular member. On the side, the cut grooves of each of the rectangular members are connected by the real part so as to form a straight line, and the vicinity of the center of the floor material thickness at the intersection of the cut groove and the real part is adhesive and / or A sound-insulating floor material for direct attachment, which is fixed by a plastic rod-shaped member and has a cushioning material in the lower layer.