JPH0596283U - Floor material - Google Patents

Abstract

(57) [Summary] [Purpose] In the nailing construction method in which nailing is performed on the male portion of the floorboard and the floorboard is stretched, when a shock is applied to the nailed and fixed male portion in the nailing construction method. Since the male part is fixed, the impact will be transmitted to the base surface. Further, for example, it has been proposed to form a groove on the surface of the flooring material substrate to improve the flexibility and vibration damping action of the flooring material substrate. However, in this case, since the nail is driven obliquely downward from the upper part of the male seed, it penetrates through the groove and causes a crack. It is an object of the present invention to absorb the above-mentioned shock and prevent damage to the groove. [Structure] A back plate 2 having a plurality of grooves 4 formed on the front surface and having fruit at the mouth, an elastic sheet 3 and a front plate 1 are sequentially laminated on the front surface, and a sound insulating sheet 7 is provided on the back surface of the back plate 2. A floor material that is attached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a floor material, particularly a soundproof floor material which is used in an upper part of a house to prevent propagation of solid sound downstairs due to impact on the floor surface.

[0002]

[Prior art]

 In recent years, a direct-adhesion method has been often used in which a floor material is directly adhered to a concrete base material. In addition, in apartments and other condominiums, in order to prevent the sound of daily living on the upper floors from being transmitted to the lower floors, various cushioning materials are attached to the back surface of the floor material so that the soundproofing floor material provides sound insulation performance. The pasting method is used.

However, the sound insulation performance of the foam sheet used as the cushioning material is limited to the sound insulation class L-50 (according to the light weight impact type according to JIS 1418), so that it is always possible to provide sufficient sound insulation performance. Can not.

If the expansion ratio of the foam sheet used is increased, the soundproofing performance can be further improved, but the rigidity of the floor material will be reduced, and if a heavy object such as a closet or a piano is placed, it will be affected by its weight. Sinking occurs, and if an attempt is made to obtain a soundproofing flooring material having L-45 performance, walking on the flooring material causes sinking due to the load accompanying walking, resulting in poor walking feeling and tired feet. That is the problem.

In order to solve such a problem, in addition to attaching a cushioning material to the back surface of the floor material, the floor board itself is configured as shown in FIG. 1 so that the front board 1a, elastic sheet 3a and back board are There is known a soundproof flooring material which is made up of three layers 2a or has a groove 4a formed on the back surface of the floorboard substrate A to improve the flexibility and the vibration damping function as the floorboard substrate.

[0006]

However, although the soundproof flooring having the structure shown in FIG. 1 has no particular problem when it is adhered to the concrete surface by an adhesive, In the nailing method of nailing the male part 5a and stretching the floorboard, the elastic sheet 3a is arranged at the approximate center in the thickness direction of the floor board and is located at the center of the male part. When the nail 5 is fixed by nailing from above, the upper part of the male 5 including the elastic sheet 3a cannot be moved by fixing the nail n at the nailing n portion, and the male 5a fixed by nailing is fixed. If a shock is applied to the surface of the floor material in the vicinity, the shock will be transmitted to the ground surface as it is.

Actually, since the impact applied to the floor material surface is dispersed in the surface direction by the surface 1 of the floor material substrate A, not only the impact applied to the vicinity of the male fruit 5a but also the floor plate surface The impact applied to the part is also transmitted to the back side from this nailing part, and the soundproofing performance as a soundproofing floor material becomes extremely poor.

Further, in nailing for nailing, generally, the nail is struck obliquely downward from the upper part of the male seed, and therefore the tip of the nail penetrates the groove formed in the floor board, and at this time, it cracks near the groove. There was a problem that the strength of the floor board substrate near the male seeds 5a decreased and the cracks caused floor squealing.

In view of the above problems, the present invention has been completed as a result of earnest efforts to provide a floor board whose soundproofing performance does not deteriorate even in the nailing method.

That is, according to the present invention, a back plate 2 having a plurality of grooves 4 formed on a surface thereof and a fruit 5 provided at a wood mouth, an elastic sheet 3 and a front plate 1 are sequentially laminated on the surface of the back plate 2 and It is a flooring material with a sound insulation sheet 7 attached to the back surface.

【Example】

 FIG. 2 shows a sectional view of the flooring material of the present invention. As shown in the figure, the elastic sheet 3 and the front plate 1 are laminated on the surface of the back plate 2, and the sound insulating sheet 7 is attached to the back surface of the back plate 2 to form the flooring of the present invention. A shows a floor material substrate. As the front plate 1 and the back plate 2, plywood, fiber board, particle board, laminated board, wood board and the like can be used. If necessary, the front plate 1 may be one having a decorative sheet, such as a decorative veneer, a decorative paper, a synthetic resin sheet, etc., adhered to the surface thereof, or an optional makeup k applied by a pattern or color coating. Can be used.

Further, as the back plate 2, one having a plurality of grooves 4 cut into the surface thereof toward the back surface side of the floor material is used. As for the cutting direction of the groove 4, it is possible to use a plurality of cuts at appropriate intervals in a direction parallel to, orthogonal to, or oblique to the longitudinal direction of the floor material.

By forming the groove 4 on the front surface side of the back plate 2 as described above, even if the groove 4 is formed up to the vicinity of the male fruit, the nail hitting the male fruit 5 can be prevented from penetrating the groove 4. Therefore, the cut positions of the groove 4 can be formed uniformly regardless of the nailing position. Further, by forming the groove 4 on the surface of the back plate 2, the rigidity of the back plate 2 is reduced and the impact force applied to the surface is reduced. The back plate 2 can absorb energy.

Further, since the back plate 2 is partly divided by the groove 4, it is difficult for sound to propagate, and the soundproof effect can be further improved.

The elastic sheet 3 is made of a material having an appropriate elasticity, and is made of, for example, synthetic resin such as vinyl chloride, polyethylene, polypropylene, acetate, vinylidene chloride, polystyrene, acrylic, or a foam thereof, or rubber or synthetic rubber. Alternatively, those foams and the like are arbitrarily used.

As described above, by interposing the elastic sheet 3 between the front plate 1 and the back plate 2, most of the impact applied to the surface of the floor material can be absorbed by the elastic sheet 3.

The sound insulating sheet 7 attached to the back surface of the back plate 2 has a specific gravity of 1 g / cm ² or more, preferably 1.5 g / cm ² or more. Use resin-based or asphalt-based sheets, and those with mixed heavy substance powder such as lead powder and iron oxide powder, or those with non-woven fabric of the same heavy substance embedded in the sheet. You can

Further, by using the sound insulation sheet 7 with the back surface having the unevenness, the sound energy propagation direction becomes random, and the sound insulation performance is further improved.

Further, in the flooring material of the present invention, a male seed 5 is formed at one end of the mouth in the longitudinal direction and a transverse direction, and a female seed 6 is formed at the end of the mouth of the other side, which can be fitted with the male seed. However, the male seeds 5 and the female seeds 6 are formed only by the openings of the back plate.

As described above, the fruit is formed only by the knurls of the back plate 2, so that even if the male part 5 is nailed as shown in FIG. Since the front plate 1 and the front plate 1 are not fixed to the base material by the nails n, even if an impact is applied to the surface of the upper floor plate of the nailing portion, the front plate 1 is dispersed in the surface direction and the elastic sheet 3 is formed. As a result, most of the shock is absorbed, so the shock transmitted to the underlying surface is greatly suppressed.

[0020]

[Effect of the device]

 In the flooring material of the present invention, by interposing the elastic sheet 3 between the front plate 1 and the back plate 2, most of the impact applied to the surface of the flooring material can be absorbed by the elastic sheet 3. The sound absorbing sheet 7 attached to the back surface of the back plate 2 absorbs or reflects the energy of the impact that cannot be completely absorbed by the elastic sheet 3 to prevent the sound from propagating downstairs.

Further, the groove 4 is provided from the front surface side to the back surface side of the back plate 2 to reduce the synthesis of the back plate 2 and thereby improve the vibration damping effect as the flooring material substrate. Furthermore, since the male seeds 5 and the female seeds 6 formed on the knurled surface of the floor material are formed only by the knurls of the back plate 2, even if the nail n is struck on the male seeds 5 by nailing construction, Only the back plate 2 is fixed to the back plate 2, and the elastic sheet 3 and the front plate 1 on the upper surface of the back plate 2 are not fixed by nailing. Even if the impact is applied, most of the energy is absorbed by the elastic sheet 3 without propagating directly to the base surface, so that the deterioration of the soundproofing performance is within a very small range.

[Brief description of drawings]

FIG. 1 is a sectional view of a conventional flooring material,

FIG. 2 is a sectional view of the flooring of the present invention,

FIG. 3 is a cross-sectional view when nailing a floor material of the present invention,

[Explanation of symbols]

1, 1a: front plate, 2: back plate, k: makeup, 3: elastic sheet, 4: groove, 5: male fruit, 6: female fruit, 7: sound insulation sheet,
n: nail, A: floor material substrate.

Claims (1)

[Scope of utility model registration request] 1. A back plate 2 having a plurality of grooves 4 formed on the surface thereof and a fruit at the mouth of the back plate, an elastic sheet 3 and a front plate 1 are sequentially laminated on the surface, and a sound insulating sheet is provided on the back surface of the back plate 2. A flooring material with 7 attached.