JPH0571737B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a floorboard material with damping material sandwiched therebetween, and particularly to a floorboard material with excellent sound insulation properties for solid-borne sound.

[Background technology and issues to be solved] Floorboard materials used as interior flooring materials for buildings are:
When sound insulation performance is required, a lead plate or the like is attached to the back side to increase the mass.

However, although the floorboard material to which this lead plate is pasted improves the air sound insulation property, the effect of blocking solid sound generated when walking on the floorboard material cannot be improved very much. For this reason, a floor board material with a sanderch structure in which a damping material such as lead is sandwiched between the base plate and the finishing layer is considered, but in the case of this sanderch structure, the processing of the end surface is complicated and it is difficult to commercialize it. . In other words, when using a saw blade to process a joint with a mating member formed on the end surface of a floorboard, the plate-shaped damping material is usually placed at the center in the thickness direction of the floorboard where the joint is formed. Because of this, when the saw teeth are applied to the butt end surface perpendicularly to the board thickness direction and the saw teeth are moved in the width direction or longitudinal direction of the floorboard material while cutting, the damping material always touches the outer periphery of the saw teeth. It may get tangled when it comes into contact with other objects, making machining difficult. This problem becomes noticeable when rubber-based or asphalt-based materials, which are excellent as vibration damping materials, are used.

Further, for example, as shown in FIG. 6, in the case where the joining part is composed of a female seed 80 and a male seed 82, if a person stands near the male seed 82, the male seed 82 will connect to the female seed 80.
The damping material 84 may peel off from the base plate 88 or the finishing layer 90 by pushing down the U-shaped lower surface of the damping material 84 .

In consideration of the above facts, the present invention has been developed to provide a flooring structure that allows easy processing of the end surface even when the damping material has a sanderch structure, is resistant to peeling of the damping material, and has excellent sound insulation performance against impact noise. The purpose is to obtain board material.

[Summary and operation of the invention] In the floorboard material according to the present invention, in the floorboard material in which a damping material is sandwiched between a base plate and a finishing layer, the damping material is connected to a connecting means for coupling the floorboard materials to each other. It is characterized in that it is disposed on the finishing layer side.

For this reason, for example, when the joining means is a joining structure of female fruit and male fruit, and the female fruit and male fruit are processed with a drum-shaped blade for fruit formation, Even if the sawtooth is pressed against the floorboard material and the sawtooth is moved in the widthwise or longitudinal direction of the floorboard material during cutting, the damping material will not come into contact with the outer periphery of the sawtooth and become entangled, making processing easier.

Furthermore, since the damping material is placed closer to the finishing layer than the coupling means, even if a person is placed near the coupling part and the coupling part bends upward, the damping material will remain in contact with the base plate or the finishing layer. No peeling occurs between the two.

Furthermore, since the damping material is disposed on the finishing layer side and is closer to the impact source, the impact sound insulation performance is improved.

[Example] Fig. 1 shows a floorboard material 10 to which a first example of the present invention is applied.

As shown in FIG.
A damping material 16 is sandwiched between 2 and the finishing layer 14.

The base plate 12 is placed on the floor base, and the finishing layer 14 faces the interior of the room and has a wood-finished surface.

A male fruit 18 and a female fruit 20, which are connection parts with a mating member, are formed on the peripheral butt surface of the floor board material 10. As shown in FIG. 1, male seeds 18 and female seeds 20 are formed on two adjacent sides of the floorboard material 10, respectively. For this reason, the floorboard material 10 has a finish layer 14
From the surface of the male fruit 18 and the female fruit 20 to the upper end surface (dimension L) and from the lower end surface of the male fruit 18 and female fruit 20 to the lower end surface of the base plate 12 (dimension M) are the straight end surfaces 22 and 24, respectively. The male fruit 18 and female fruit 20 portions form a curved end surface portion 26.

To explain the manufacturing procedure of this floor board material 10, the base plate 12 is closely attached to the finish layer 14 via the damping material 16, and the damping material 16 is fixed to the base plate 12 and the finish layer 14 with an adhesive. These base plates 12,
After the finishing layer 14 and the damping material 16 are integrated, the end surface is processed.

Here, the case where the male seed 18 is processed will be explained as an example. As shown in FIG. 2, the floorboard material 10
While pressing the circular saw 28 against the straight end face 22 (from the opposite side of arrow A for the straight end face 24) in the thickness direction (direction of arrow A), move the floorboard material 10 in the longitudinal direction (direction of arrow C). Slide it to form a slit. Next, the male fruit 18 is formed by sliding the circular saw 30 in the longitudinal direction (direction of arrow C) of the floorboard material 10 while pressing it against the end face of the floorboard material 10 in the width direction (direction of arrow B). The outer periphery of this circular saw 30 is drum-shaped with a concave surface that matches the shape of the male fruit 18, and the end surface of the wood end of the base plate 12 is shaved off leaving the male fruit 18 intact.

In the circular saw 28 that is pressed against the butt end surface forming the male fruit 18 of the floorboard material 10 and cuts the damping material 16 in the wall thickness direction, the portion of the sawtooth that comes into contact with the damping material 16 is cut into the damping material 16. Since it is only a portion corresponding to the wall thickness of the damping material 16, it is easy to cut even when the damping material 16 has a component such as rubber or asphalt.

Furthermore, since the damping material 16 is not present in the processed portion of the circular saw 30, the damping material 16 does not get entangled with the outer periphery of the circular saw 30, making processing easy.

In other words, as in the past, when the damping material is located in the male-machined part, when the sawtooth is applied perpendicular to the plate thickness direction, the damping material to be cut always hits the outer periphery of the sawtooth and becomes entangled. Since machining does not become difficult, the period until repair of the saw blade is extended,
Productivity improves.

Further, the forming portion of the female seed 20 is also similar to the forming portion of the male seed 18, and the only difference is that a circular saw that matches the female seed 20 is used. Even when forming a joint structure having a shape other than the actual shape, the saw teeth can be replaced, and various complicated shapes can be accommodated.

A plurality of floorboard materials 10 formed in this manner are connected to each other by the male fruit 18 and female fruit 20, and are laid on the floor and fixed to the floor by driving nails into the male fruit 18 and female fruit 20 portions. Ru. Since the damping material does not protrude from the fruit part, the fruit can easily enter and connection is easy. Even during nailing, since the damping material 16 is not present in the male seed 18 and female seed 20 portions, the strength of the male seed 18 and female seed 20 is high, and accidents such as damage due to nailing do not occur.

Moreover, any material can be selected for the vibration damping material 16 without considering machinability with the circular saw 30, and the sound insulation performance can be improved.

Furthermore, the damping material 16 includes male seeds 18 and female seeds 20.
Since it is arranged on the upper side, even if a person is placed near the male seed 18 and the female seed 20 is warped upward, the vibration damping material 16 will not separate from the base plate 12 or the finishing layer 14. There is no.

Next, FIG. 3 shows a floorboard material 34 according to a second embodiment of the present invention.

In this embodiment, the joining part with the mating member is constituted by a male phase cutout 36 and a female phase cutout 38 (phase cutout refers to a joint in which two pieces of wood are cut out in half and assembled together). . That is, the male phase cutout 36 is formed by the finishing layer 14, the damping material 16, and the base plate 12.
A part of the floor board material 34 is cut by sliding the circular saw 28 forward or backward in the paper while pressing the circular saw 28 in the thickness direction (direction of arrow A).
It is formed by pressing it against the butt end surface in the width direction (direction of arrow B) and sliding it forward or backward in the paper and cutting it. It is preferable that the width of this circular saw 40 is approximately 3 mm or less.
The cutting length in the thickness direction of the plate 2 is also greater than the width dimension of this circular saw 40, so that when cutting with the circular saw 40, the circular saw 40
The damping material 16 is designed to prevent it from getting entangled.

The female phase notch 38 is similar to the male phase notch 36, and the circular saw 2
8. It is formed by cutting out a part of the base plate 12 with a circular saw 40.

Therefore, in this embodiment as well, the male phase defect 3
6. When forming the female phase notch 38, add the damping material 1 to the circular saw 40.
6 does not get tangled, making processing easier.

Next, FIG. 4 shows a floorboard material 42 according to a third embodiment of the present invention.

In this floorboard material 42, a joining part is formed on the end surface of the baseboard 12 as in the first embodiment, but in this embodiment, a joint part is formed between the adjacent floorboard materials 42.
4 is placed for connection. Therefore, female seeds 20 are formed around the base plate 12.

In this embodiment as well, the female fruit 20 is formed on the base plate 12, so the female fruit 20 is
The damping material 16 does not get tangled with the circular saw when forming the zero.

Next, FIG. 5 shows a floorboard material 46 according to a fourth embodiment of the present invention. In this floorboard material 46, a buffer layer 48 is further provided on the back surface of the floorboard material 10 of the first embodiment, and male seeds 18 and female seeds 20
The structure is the same as that of the first embodiment, and vibration absorption is further improved by the buffer layer 48.

[Effects of the Invention] Since the present invention has the above configuration, even when the damping material has a sandwich structure, the end face can be easily processed, the damping material is difficult to peel off, and further,
Excellent sound insulation performance against impact noise.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a first embodiment of the floorboard material according to the present invention, Fig. 2 is a sectional view of Fig. 1, and Figs. 3 to 5 show second to fourth embodiments of the present invention. A sectional view showing an example, FIG. 6 is a sectional view showing the structure of a conventional floor board material. 10, 34, 42, 46...floorboard material, 12...
Base plate, 14... Finishing layer, 16... Damping material, 18...
... Male fruit, 20... Female fruit, 28,30... Circular saw, 3
6... Male phase missing, 38... Female phase missing.

Claims (1)

[Claims] 1. A floorboard material in which a damping material is sandwiched between a base plate and a finishing layer, characterized in that the damping material is disposed closer to the finishing layer than a coupling means for coupling the floorboard materials to each other. Floor board material.