JP2017197906A - Soundproof floor material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a soundproof floor material that mitigates a feeling of unstable fluffiness while walking, without compromising soundproof performance.SOLUTION: A soundproof floor material 1 includes a wooden base material 10 having a slit 15 formed on a rear surface, and a cushioning material 20 inserted into each slit 15. The cushioning material 20 has a top part 21 housed inside the slit 15, and a bottom part 22 protruding on the rear surface side of the wooden base material 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a soundproof flooring material having a wood base material having a slit formed on the back surface.

  As this type of soundproof flooring material, various types of cushioning materials laminated on the back surface of a wooden base material on which slits are formed have been proposed (for example, see Patent Document 1). According to such a soundproofing flooring material, the soundproofing performance is achieved by reducing the bending rigidity of the wooden base material by providing slits and improving sound absorption, sound insulation and shock relaxation by providing cushioning materials. Can be improved.

JP 2005-281976 A

  However, in the above-mentioned soundproof flooring material, the cushioning property of the cushioning material provided on the entire back surface of the wooden base material is too good, and the feeling of walking that is fluffy during walking occurs and the walking feeling is poor. There is a risk.

  As described above, in the soundproofing floor material in which the slit and the cushioning material are combined to improve the soundproofing performance, it is necessary to balance the soundproofing property and the cushioning property. This has been done in the past.

  The present invention has been proposed in view of such circumstances, and an object of the present invention is to provide a soundproof flooring material capable of reducing a fluffy feeling during walking while suppressing a decrease in soundproof performance. is there.

  In order to achieve the above object, the soundproof flooring of the present invention is configured to have a cushioning material inserted into each slit in the soundproofing flooring having a wooden base material with slits formed on the back surface. The cushion material is characterized in that the upper part is accommodated in the slit and the lower part protrudes to the back side of the wooden substrate.

  According to the soundproof floor material of the present invention, since it has the above-described configuration, it is possible to reduce a fluffy feeling during walking while suppressing a decrease in soundproof performance.

It is explanatory drawing of the soundproof flooring which concerns on one Embodiment of this invention. (A) is a schematic plan view of a soundproof flooring, (b) is an enlarged longitudinal sectional view corresponding to the AA line of (a). It is an expanded longitudinal cross-sectional view corresponding to the AA line of Fig.1 (a) which shows the construction state of a soundproof flooring.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. First, a schematic basic configuration of a soundproof flooring 1 according to the following embodiment will be described.

  The soundproof flooring 1 is a flooring having a wooden base material 10 with slits 15 formed on the back surface. This soundproof flooring 1 is configured to have a cushioning material 20 inserted for each slit 15. The cushion material 20 has an upper portion 21 accommodated in the slit 15, while a lower portion 22 projects to the back side of the wooden substrate 10 (see FIGS. 1 and 2 above).

  According to such a soundproof flooring 1, since the lower part 22 of the cushioning material 20 protrudes to the back side of the wooden base material 10, the lower end 23 of the cushioning material 20 comes into contact with the floor foundation 5 after the construction, and the damping force Is demonstrated. In this case, since the cushion material 20 is not on the entire back surface of the wooden base material 10, the fluffy feeling during walking can be reduced. Moreover, since the soundproofing flooring 1 has a structure having the slits 15 and the cushioning material 20, the soundproofing effect can be prevented from being lowered by them.

  Next, details of the soundproof flooring 1 will be described.

  As the wooden base material 10 of the soundproof flooring 1, a plywood formed by stacking a plurality of single plates can be used. Various plywoods such as 5 ply and 7 ply can be used. Of course, materials other than plywood may be used as the wood substrate 10.

  In both the longitudinal direction and the short direction of the soundproof flooring 1, a male solid part 13 for actual connection is formed on one side edge part 11 of each direction of the wooden base material 10, and the other side edge. The part 12 is formed with a female real part 14 in which the male real part 13 can be fitted (see FIG. 1). In addition, in FIG.1 (b), the expanded longitudinal cross-sectional view which abbreviate | omitted a part of the longitudinal direction in the soundproof flooring 1 shown to Fig.1 (a) was shown.

  A decorative material 35 made of a veneer or a decorative sheet is attached to the surface of the wooden substrate 10.

  On the other hand, a plurality of slits 15 having substantially the same shape as viewed in a longitudinal section are formed on the back surface of the wooden substrate 10, extending along the longitudinal direction and the lateral direction. These slits 15 are formed by sawing or the like so as to penetrate from the side end of the wooden substrate 10 to the opposite side end (see FIG. 1B). The wood base material 10 has a rigidity lowered by these slits 15 and provides an impact relaxation action.

  As described above, the cushion material 20 is inserted into each of the slits 15 so that the lower portion 22 protrudes toward the back surface side of the wooden base material 10. The material of the cushion material 20 is a porous material such as a soft urethane foam, but is not limited thereto. The cushion material 20 is preferably composed of a thin surface material corresponding to the slit 15 on a one-to-one basis.

  As shown in FIG. 1B, the thin cushion materials 20 are arranged in a state of being erected in a direction orthogonal to the surface of the soundproof floor material 1. That is, the cushion material 20 is arranged so that the thickness direction thereof coincides with a direction parallel to the surface of the soundproof flooring 1 (longitudinal direction in the illustrated example).

  Further, the nailing and fixing portion 30 made of a hard material that does not protrude from the lower end 23 of the cushion material 20 on the back surface corresponding to at least one of the side edge portions 11 and 12 that are opposite to each other in the wood substrate 10. It is desirable to be provided. The soundproof flooring 1 shown in FIG. 1 is provided with a nailing fixing portion 30 made of a hard material on the back surface of the wooden base material 10 corresponding to each of the side edges 11 and 12 in the longitudinal direction. As will be described later, the nailing is performed obliquely downward from the corner of the upper surface of the male part 13 in order to fix the soundproofing flooring 1 to the floor base 5 (see FIG. 2).

  The nail driving fixing part 30 is a fixing member that is laminated and fixed along the male part 13 on the back surface corresponding to the edge part 11 of the wooden base material 10 through which a fixing tool such as the nail 3 is inserted. Similarly, the nail fixing part 30 is laminated and fixed to the back surface of the wooden base material 10 at the edge part 12 on the female part 14 side.

  As shown in FIG. 1A, the soundproofing flooring 1 of the present embodiment is provided with the nail fixing portions 30 corresponding to the short side edges 11 and 12 of the wooden substrate 10, Is not limited, and may be provided at the edge of the long side. Further, the nail fixing portion 30 does not have to be provided on the entire length of the short side edge portions 11 and 12 of the wood base material 10 and corresponds to a portion to be nailed out of the total length of the short side edge portions 11 and 12. You may make it provide only in a site | part.

  The nail fixing portion 30 is attached to exert a subsidence preventing function as in the case of a subsidence prevention member 31 described later, and may be formed of a hard material such as a wood material or a hard urethane foam. Good. The degree of hardness is not particularly limited as long as it hardly deforms (compresses) in the vertical direction when nailing.

  Furthermore, as shown in FIG. 1B, the soundproof flooring 1 of the present embodiment has a subsidence prevention portion 31 made of the same material and having the same shape as the nail fixing portion 30 in a cross-sectional view at the center in the longitudinal direction. It has.

  Both of the nail fixing portions 30 of the both side edge portions 11 and 12 and the sinking prevention portion 31 of the central portion are fitted and fixed in a recess 16 formed by cutting the back surface of the wooden substrate 10. Further, the back surfaces of the nail fixing portion 30 and the sinking prevention portion 31 do not protrude downward from the lower end 23 of the cushion material 20 and are in an upper position. Although the recess 16 may be omitted, if such a recess 16 is formed, the nailing fixing portion 30 and the sinking prevention portion 31 are aligned when the soundproof flooring 1 is manufactured. Can be installed easily.

  The total length of the soundproof flooring 1 illustrated in FIG. 1 in the longitudinal direction is about 1818 mm. Regarding the thickness dimension, when the wood base 10 having a thickness of about 9 mm including the decorative material 35 is used, the thickness T1 from the front surface to the back surface of the nail fixing portion 30 is about 12 mm. The thickness T2 of the nail driving prevention part 30 and the sinking prevention part 31 is about 5 mm. In addition, the depth of the recess 16 to which the nail preventing portion 30 and the sinking preventing portion 31 are attached is about 2 to 3 mm.

  Further, the protruding length T4 from the back surface of the wooden substrate 10 to the lower end 23 of the cushion material 20 is about 3 mm, and the lower end 23 of the cushion material 20 is located slightly below the back surface of the nail driving prevention portion 30. This step is preferably about 2 to 3 mm.

  As can be seen from the above numerical values and as shown in FIG. 1B, the soundproofing flooring 1 has a lower end 23 of the cushioning material 20 and a lowermost end of the soundproofing flooring 1 before construction. It has become.

  Such a soundproof flooring 1 is actually bonded to the existing soundproofing flooring 1A and is fixedly attached to the floor base 5 by nailing the male part 13 side (FIG. 2). reference).

  As shown in FIG. 2, the cushion material 20 is pressed from above and below by nailing and fixing the soundproof floor material 1 to the floor base 5, and the lower portion 22 projecting downward from the cushion material 20 is in a compressed state. The position of the lower end 23 of the cushion material 20 is substantially at the same level as the back surface of the nail fixing portion 30. In addition, when the soundproofing flooring material 1 is constructed, the central part between the edge parts 11 and 12 may be slightly bulged by the elasticity of the cushioning material 20 to the extent that there is almost no sense of incongruity.

  According to the soundproofing flooring 1 as described above, since the lower part 22 of the cushioning material 20 inserted into the slit protrudes on the back side of the wooden base material 10, the lowering 22 of the cushioning material 20 becomes the floor base 5 after construction. Attenuating force is exerted by contact, and fluffy feeling during walking can be reduced. That is, the cushion material 20 is not laminated on the entire back surface of the wooden base material 10, and a plurality of things are in an upright state, so that flexibility is eased. In particular, since the soundproofing flooring 1 of the present embodiment has the nail fixing portions 30 provided on the edge portions 11 and 12, as shown in FIG. 2, the cushioning material 20 is applied to the floor base 5 after construction. The state where the hardness is increased due to deformation by contact is maintained. As a result, the fluffy feeling is further reduced.

  Further, in the present embodiment, since the nail fixing portion 30 is provided on the short side edge portions 11 and 12, the distance between the side edge portions 11 and 12 is long. Therefore, the central portion is easily bent if the flexible cushioning material 20 is laminated on the wooden base material 10, but the submerged sinking can be prevented because the cushioning material 20 is arranged in a standing manner. Is big. Moreover, since the soundproofing flooring 1 of this embodiment is provided with the sinking prevention part 31 in the center of a longitudinal direction, even if it steps on repeatedly, the cushioning material 20 is flatter than the state shown in FIG. Rather, the subsidence prevention unit 31 acts as an emergency limit of subsidence.

  Moreover, since the nail driving | fixing part 30 is distribute | arranged to the edge parts 11 and 12, the sinking in the edge parts 11 and 12 can be prevented naturally. That is, according to the soundproofing flooring 1, a uniform walking feeling without fluffy feeling that does not change so much at any position can be obtained.

  Of course, the soundproofing performance by the slit 15 and the cushion material 20 inserted into the slit 15 is exhibited, and the deterioration of the soundproofing effect can be suppressed.

  In addition, the nailing fixing | fixed part 30 consists of hard materials, and there exists a possibility that soundproof performance may fall to some extent by it. However, since the slits 15 are formed in the wood base material 10 and the cushion material 20 is provided, the deterioration of the soundproof performance can be reduced by them. Moreover, since this soundproofing flooring 1 is predicated on nailing, and the soundproofing performance is sufficiently taken into consideration as described above, it can be assumed that it is used on the upper floor of a detached house. It is not limited to.

  As described above, the soundproofing flooring material 1 has good soundproofing performance and walking performance and a good balance between them. In addition, the cushioning material 20 is provided with the soundproofing flooring 1 having a suitable soundproofing performance and walking performance according to the installation target in a well-balanced manner, for example, by adjusting the downward protruding length and the number of inserted cushioning materials 20. Can be configured.

  In the present embodiment, an example in which nailing is performed on the male real part 13 side is shown. However, since the nail fixing part 30 is laminated on the female real part 14 side, even when nailing is performed on the female real part 14 side. The sinking of the edge portion 12 can be prevented. Further, assuming that the construction as shown in FIG. 2 is performed, the edge portion 12 on the female real portion 14 side is submerged by the nail fixing portion 30 on the male real portion 13 side of the existing soundproof flooring 1A. Since it can prevent, the structure which provided the nail fixing part 30 only in the male part 13 side may be sufficient. As described above, the soundproof flooring 1 may have a configuration in which the nail fixing portion 30 is provided only on one of the edge portions 11 and 12 having the opposite side relationship.

  Moreover, the nail fixing part 30 and the sinking prevention part 31 can also make those back surfaces and the back surface of the wooden base material 10 substantially flush from the relationship with the depth of the recess 16 for attaching them. . If the back surface is made substantially flush in this way, the protruding length of the lower part 22 of the cushion material 20 can be made to be about several mm or less.

  In this case, when walking, the lower portion 22 of the cushioning material 20 is compressed into an extremely thin shape, and the back surface of the wooden substrate 10 comes close to or contacts the floor base 5. Therefore, there is almost no fluffy feeling when walking. Therefore, in such a thing, it is not necessary to provide the sinking prevention part 31 in the center. Moreover, even if it is such a soundproof flooring, since it has the slit 15 and the cushioning material 20, a certain amount of soundproofing performance can be ensured.

  In the above, the soundproof flooring 1 having a male and female connection configuration is shown as an embodiment, but it goes without saying that it can also be applied to a laminar flooring.

DESCRIPTION OF SYMBOLS 1 Sound insulation floor material 10 Wood base material 11, 12 (Short side) Edge part 15 Slit 20 Cushion material 21 Upper part 22 Lower part 23 Lower end 30 Nailing fixed part

Claims (3)

In the soundproofing flooring having a wooden substrate with slits on the back,
It is configured to have a cushion material inserted for each slit,
The cushioning material is characterized in that the upper part is accommodated in the slit, and the lower part protrudes to the back side of the wooden base material. In claim 1,
A soundproofing, in which a nail fixing portion made of a hard material that does not protrude from the lower end of the cushion material is provided on the back surface corresponding to at least one of the two edge portions that are opposite to each other in the wood substrate. Flooring. In claim 2,
The nailing and fixing portion is a soundproof floor material provided corresponding to a short side edge portion of the wooden base material.

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