JP2005090090A - Sound insulation flooring - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide sound insulation flooring increasing sound insulation property between up-and down-stairs rooms in a double dry type floor structure, preventing the lowering of strength, providing comfortable walking and increasing load resistance. <P>SOLUTION: The sound insulation flooring 1 is formed of a plurality of grooves 3 and 4 at a predetermined interval or a regular interval so as to cross both front and rear sides of a board material 2, projected stripes 5a and 6a of damping sheets 5 and 6 are respectively fitted to the grooves 3 and 4, at the same time, the front and rear sides are coated with the damping sheets 5 and 6 to make them adhere to each other, and the direction of the groove 3 formed in the front side of the board material 2 and the direction of the groove 4 formed in the rear side make a crossing with an overpass or underpass at a proper angle (90° ). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a sound insulation floor board that improves the sound insulation performance of a dry double floor of a floor of a building, particularly a condominium, an apartment house or the like.

  In the trouble occurrence investigation in the condominium, the life manner trouble among the residents is the most, and the cause is the sound problem that accounts for 46.5% of the total. There is a need for a quiet and comfortable lifestyle that eliminates anxious footsteps and other sounds.

  The following invention is proposed regarding the floor material among the sound insulation materials which insulate those sounds.

  The sound insulating material shown in Patent Document 1 uses solid wood, which is a surface plate, with a joist on a slab in order to provide a structure with high soundproofing and vibration isolation effects while using solid wood. A cushioning material is provided between the slab and the joist, and a sound insulating material is provided between the joist and the solid wood. Furthermore, a sound absorbing material is arranged in the air layer between the slab and the solid wood. A moisture-proof sheet can be further disposed between the slab and the cushioning material, and another plate material can be disposed between the sound-insulating material and the joist. By using a sound insulating material having vibration damping performance and a high surface density below the solid wood, the individual propagation sound generated on the solid wood surface is reduced. Furthermore, airborne sound is reduced by arranging joists at a predetermined interval below and providing an air layer. A cushioning material is further provided under the joist to suppress transmission of vibration energy from the floor surface to the slab.

  In the floor structure member for sound insulation shown in Patent Document 2, a pair of beam members are arranged substantially in parallel in a substantially horizontal state, and the sound insulation member is fitted in between the opposed surfaces of these beam members with almost no gap. In addition, the top surface of the sound insulating member and the top surface of the beam member are disposed substantially flush with each other, and wooden receiving members are installed on the opposing surfaces of the pair of beam members, and the sound insulating member is disposed on these wooden receiving members. Is fixed in a state where it is placed. The vibration generated in the sound insulating member is attenuated by the wooden receiving member, and is difficult to be transmitted to the beam member, and as a result, a building that is difficult to vibrate can be obtained.

  The sound insulation floor material shown in Patent Document 3 exhibits excellent sound insulation performance and sound insulation performance, and provides a building board that is suitably used as a base material for a ceiling, wall, floor, etc. of a building. It is a building board characterized by being integrally laminated with wood fiber boards on the front and back surfaces of the density sound insulation sheet, the thickness of the high density sound insulation sheet is less than 1/3 of the total thickness, The density of the high-density sound-insulating sheet is 1.5 times or more the density of the wood fiber board attached to the front and back surfaces.

  The double-floor structure and construction method shown in Patent Document 4 support a stable construction without any deterioration of the floor impact sound insulation performance or sinking of the floor even when a partition is constructed or a heavy object is placed by the floor prior construction method. In order to provide sound insulation performance that can be performed, in a double floor structure in which a floor is formed by supporting a floor component member at a predetermined height on the foundation floor surface by a plurality of support legs, an opening formed in the floor component member The reinforcing support legs that can be adjusted in height are inserted and installed, and the supported object made of partitions or heavy objects is not in direct contact with the floor component. When the supported object is a partition, it is stuck to the lower side of the partition so that the lower end edge of the flexible overhanging piece of the baseboard is in contact with the surface of the floor constituent member. According to a preferred embodiment, a sound insulating or vibration isolating material is loaded into the gap between the opening and the reinforcing support leg and / or the supported object.

  The floor structure of the building shown in Patent Document 5 is a simple structure that improves manufacturability and workability, and reduces noise, so that a pair of OSBs in which a chip chip is formed in a plate shape with a binder such as phenol resin. A sound insulation sheet formed of a member having a large sound insulation characteristic such as natural rubber is integrally bonded and sandwiched between the plates to form a flat floor panel structure. A floor panel structure is supported and spread from a floor to a predetermined position on a mounting portion that can move up and down on a support leg. The floor structure is constructed by throwing away the laminated board on the upper surface of the floor panel structure and then spreading the decorative board material. The floor panel structure is flat like plywood, has high manufacturability and handleability, and has a simple structure capable of improving workability. Noise generated by propagation of impact and vibration to the building can be reduced.

The floating floor shown in Patent Document 6 is a floating floor including a base material that is supported by a support member at a distance from the base of a building, and a floor material that is attached to the front side of the base material to form a floor surface. The material includes a base material supported by the support member, an attenuation hole formed on at least one surface of the base material, and an attenuation member made of a viscoelastic body filling the attenuation hole, and generates noise to the downstairs. It can be prevented.
JP2003-056171 JP2003-041699 JP2002-004454 JP2001-295451 JP2001-132208 JP 11-280246

However, in the double dry floor structure, one of the mechanisms for producing sound during floor impact vibration is that the floor vibrates due to the impact vibration. The other is called the taiko phenomenon, in which the space under the floor becomes like a drum hit and resonates as the floor bends. It is difficult to solve the impact vibration due to these two factors.
Moreover, in patent document 6 which makes a hole in a board | plate material, there exists a problem that the intensity | strength of a board | plate material falls.
In addition, the flooring is generally hard and sometimes has a heavy burden on the knees when walking, such as elderly people, and sinking occurs when the flooring is too soft. Furthermore, the load resistance of the flooring may be insufficient.

  The present invention has been devised in view of the above-described problems, improves the sound insulation performance between the upper and lower floor rooms in the double dry floor structure, prevents a decrease in strength, provides a comfortable walking, It is to provide a sound insulating floor material that enhances load resistance.

  In order to achieve the above object, according to the first aspect of the present invention, a plurality of grooves are formed at predetermined intervals or appropriate intervals so as to cross both the front and back surfaces of the plate material, and a damping sheet made of a viscoelastic body is fitted into the grooves. A sound insulating floor board that covers both the front and back surfaces, and that the direction of the groove formed on the surface of the plate material and the direction of the groove formed on the back surface are three-dimensionally intersected.

  Invention of Claim 2 is a composite material comprised from a base material and the surface layer material bonded together on the surface and / or the back surface of this base material, and several groove | channels are carried out by the said surface layer material by the predetermined gap or appropriate gaps Alternatively, a hole is formed, a portion where the groove or hole is formed is a thin skin portion, a portion where no groove or hole is formed in the surface layer material is a thick material portion, and the thin skin portion and the thick material portion are connected. It is a sound insulation floor board characterized by being made.

  The thickness of the thin skin is preferably about 10% to 35% with respect to the depth of the groove. For example, the groove depth is 4.5 mm with respect to the plate thickness of 5.5 mm (about 18%).

  The core material is preferably particle board, medium fiber board (MDF), oriented strand board (OSB), plywood, etc., but the surface layer material is particle board, medium fiber board (MDF), orientated in addition to plywood. -Strand board (OSB) or resin-based rubber materials are preferred.

  According to a third aspect of the present invention, the thin skin portion and the thick material portion are formed alternately and continuously, and a damping sheet made of a viscoelastic body is fitted into the groove or hole and covers both the front and back surfaces. Sound insulation flooring.

  Invention of Claim 4 is a sound-insulating floor board in any one of Claims 1 thru | or 3 whose outer-diameter dimension is length 550-650mm and width 400-500mm. The outer dimensions are preferably 570 to 630 mm in length and 420 to 480 mm in width, and particularly preferably 580 to 620 mm in length and 430 to 470 mm in width. The thickness is 40 mm to 20 mm, preferably 29 mm to 23 mm, particularly preferably 27 mm to 25 mm. The maximum thickness of the plate material is preferably 35 mm to 18 mm, 30 mm to 19 mm.

  According to a fifth aspect of the present invention, a corner portion is disposed on a vibration isolator formed on a square plate and embedded in a hole of the sound absorbing material, and a plywood and a sound attenuating sheet are disposed on the upper surface. It is a sound insulation floor board in any one of thru | or 4.

  According to the first aspect of the present invention, since the direction of the groove formed on the surface of the plate material and the direction of the groove formed on the back surface are three-dimensionally crossed, a decrease in the strength of the sound insulating floor material is prevented. it can.

  According to a second aspect of the present invention, a plurality of grooves or holes are formed in the surface layer material at a predetermined gap or an appropriate gap, and a portion where the grooves or holes are formed is a thin skin portion, and the groove or hole is formed in the surface layer material. The portion where no is formed is a thick material portion, and since the thin skin portion and the thick material portion are connected, floor rigidity and sound insulation performance can be improved.

  According to the third aspect of the present invention, the thin skin portion and the thick material portion are continuously and alternately formed, so that the floor rigidity and the sound insulation performance can be further enhanced.

  According to the fourth aspect of the present invention, since the outer diameter is 550 to 650 mm in length and 400 to 500 mm in width, noise in the low frequency region can be eliminated.

  According to the fifth aspect of the present invention, the corner portion is disposed on the vibration isolator that is formed in the square plate and embedded in the hole of the sound absorbing material, and the plywood and the sound attenuation sheet are disposed on the upper surface. There is an effect that floor impact sound or lightweight floor impact sound can be reduced.

Hereinafter, a sound insulation flooring 1 which is a preferred embodiment of the present invention will be described with reference to the drawings.
The sound insulating floor material 1 has a plurality of grooves 3 and 4 formed at predetermined intervals or at appropriate intervals so as to cross both the front and back surfaces of the plate material 2, and viscoelastic members (for example, asphalt sheets, rubber sheets, etc.) in the respective grooves 3 and 4. The ridges 5a and 6a of the damping sheets 5 and 6 comprising the above are fitted, and the front and back surfaces are covered and bonded with the damping sheets 5 and 6, and the direction of the grooves 3 formed on the surface of the plate 2 and the back surface The grooves 3 and 4 are three-dimensionally intersected at an appropriate angle, in this case 90 °, with the direction of the grooves 4 formed in the above. The grooves 3 or the grooves 4 are formed in parallel. The interval between the grooves 3 and the gap between the grooves 4 may be the same or different. The outer diameter of the sound insulation flooring 1 is 600 mm in length and 450 mm in width. The sound insulation flooring 1 is formed in a square plate, but the shape can be appropriately changed to another. The plate material 2 is preferably a particle board, medium fiber board (MDF), oriented strand board (OSB), plywood or the like. The damping sheets 5 and 6 are preferably asphalt sheets. The attenuation sheets 5 and 6 include a type in which the damping sheets 5 and 6 are embedded in the grooves 3 and 4 and a type in which an integral object is bonded.

  According to Embodiment 1, the sound transmitted to the surface can be made difficult to be transmitted by the groove. In addition, when the damping sheets 5 and 6 are laminated on the plate member 2, if the grooves are put in the same direction as they are, they are vulnerable to load deformation, so the grooves are cut in the reverse direction on the front and back sides. Further, it is possible to compensate for the strength reduction of the plate member 2 due to the groove formation, and to improve the floor rigidity and the sound insulation performance. This also improves production workability and reduces costs. Furthermore, instead of bonding, the damping sheets 5 and 6 are fitted and tightened, so that the resin can enter the wood fiber and can be closely attached by the anchor effect. Further, by applying reverse taper to the grooves 3 and 4, the anchor effect is further increased. Furthermore, by reducing the size of the conventional 3 x 6, 2 x 6 and 910 mm x 910 mm products to a size of about 450 x 600 mm, the low frequency range that was difficult to reduce with the conventional products Noise can be eliminated.

Next, the sound insulation floor material 51 of Embodiment 2 of this invention is demonstrated with reference to FIG. The second embodiment is generally the same as the first embodiment, and the element numbers are used as the 50s. However, the direction of the grooves 3 and 4 is not limited to the three-dimensional intersection, and is set to an arbitrary direction or an appropriate direction.
The sound insulation flooring 51 according to the second embodiment uses the plate 2 of the first embodiment as a plate 52 that is a characteristic composite material. That is, the plate material 52 includes a base material 57 and surface layer materials 58 and 59 that are bonded to the front and back surfaces of the base material 57 by adhesion or the like. A plurality of grooves 53 and 54 are formed in the surface layer materials 58 and 59 with a predetermined gap or an appropriate gap, respectively, and the portions where the grooves 53 and 54 are formed are the thin skin portions 60 and 61 and the grooves 53 and 54 are not formed. Are thick plate portions 62 and 63, and the thin skin portions 60 and 61 and the thick plate portions 62 and 63 are formed alternately and continuously. The thickness A of the thin skin portions 60 and 61 is preferably about 10% to 35% with respect to the depth B of the grooves 53 and 54. For example, the depth of the grooves 53 and 54 is 4.5 mm with respect to the plate thickness of 5.5 mm (about 18%). Damping sheets 55 and 56 are bonded to the grooves 53 and 54, respectively, and are bonded while covering both the front and back surfaces of the plate 52.

  The base material 57 is preferably particle board, medium fiber board (MDF), oriented strand board (OSB), plywood, etc., but the board for forming the surface material 58, 59 is particle board, medium quality other than plywood. A fiberboard (MDF), an oriented strand board (OSB), or a resin-based rubber material is preferable.

  According to the second embodiment, the plate material 52 is a sandwich-type composite material, in which a plywood having a groove formed on a particle board or the like is pasted on both sides, and this is pasted on both sides with an asphalt sheet. Even if the grooves 53 and 54 are formed, the floor rigidity can be increased. In the structure of Patent Document 6 of the conventional example, the plate material made of particle board or the like has a very hard outer skin and is strong, but if the plate material is cut to form a groove, the strength may be lost. Because.

Next, an application example to the sound insulation systems of the first and second embodiments will be described with reference to FIG.
In this sound insulation system, a small-diameter support plate 114 is horizontally mounted on a vibration isolator 113 embedded in a hole 112 of the sound absorbing material 111, and the sound insulation floor 1 or the sound insulation floor 51 is attached to the support plate 114. Corners are arranged with a predetermined gap. Further, the plywood 115, the damping sheet 116, and the flooring 117 are fixed to the upper surface of the sound insulating floor material 1 or the sound insulating floor material 51. This sound insulation system is applied to dry double floors in apartment buildings. Examples of the vibration isolator 113 include Japanese Patent Publication No. 7-35838 or the invention described in Patent Document 6.
When applied to a double dry floor structure, noise reduction of about 60-70 dB is possible. Moreover, as shown in FIG.6 and FIG.7, the reduction effect of a heavy floor impact sound and a lightweight floor impact sound is recognized. In the case of FIGS. 6 and 7, the floor layer thickness is 166 mm, the floor surface weight is about 75.0 kg / m ² , and the sound insulation performance is a light impact sound. doing. In addition, the division of FIG. 7 is based on a Japanese house performance display standard.

  Next, the sound insulation floor material 201 of Embodiment 3 of this invention is demonstrated with reference to FIG. 8, FIG. The third embodiment is substantially the same as the sound insulating floor material 51 of the second embodiment, and the description is incorporated by assuming that the element number is in the 200s. This sound insulation flooring 201 is applied to only one side in the second embodiment.

  Next, the sound insulation flooring 301 of Embodiment 4 of this invention is demonstrated with reference to FIG. 9, FIG. The fourth embodiment is substantially the same as the second embodiment, and the description is incorporated with the number of elements being in the 200s. Unlike the first embodiment, the sound insulating floor material 301 is formed with grooves in the same direction as the sound insulating floor material 51 of the second embodiment. However, the facing grooves 303 and 304 are shifted from each other by a predetermined gap or an appropriate gap. So that the strength is not lowered.

  As mentioned above, this invention is not limited to the said embodiment, As long as it belongs to the technical scope of this invention, it can take a various form. Modifications and the like can be made without departing from the technical idea of the present invention, and such modifications and equivalents are also included in the technical scope of the present invention.

It is a perspective view of the board | plate material of this invention Embodiment 1. FIG. It is a sound-insulating floor material of Embodiment 1 of this invention. It is a disassembled perspective view of the sound-insulating floor material of Embodiment 1 of this invention. It is a longitudinal cross-sectional view of the sound-insulating floor material of Embodiment 2 of this invention. It is sectional drawing of the sound insulation system to which this invention Embodiment 1 and 2 are applied. It is a graph which shows the frequency VS heavy floor impact sound level reduction amount about the sound insulation system to which this invention Embodiment 1 and 2 are applied, and a comparative example. It is a graph which shows frequency VS lightweight floor impact sound level reduction amount about the sound insulation system to which this invention embodiment is applied, and a comparative example. It is a perspective view (a) of the board | plate material of this invention Embodiment 3, and a perspective view (b) of the sound insulation flooring material. It is a perspective view of the sound insulation material of Embodiment 3 of this invention. It is the perspective view (a) of the board | plate material of this invention Embodiment 4, and the perspective view (b) of the sound insulation flooring. It is a perspective view of the sound insulation material of Embodiment 4 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,51 ... Sound insulation floor material 2, 52 ... Plate material 3, 4, 53, 54 ... Groove
5, 6, 55, 56 ... damping sheet 5a, 6a ... ridge 57 ... substrate
58, 59 ... surface layer material 60, 61 ... thin skin part 62, 63 ... thick plate part
111 ... Sound absorbing material 112 ... Hole 113 ... Vibration isolator
114 ... support plate material 115 ... plywood 116 ... damping sheet
117 ... Flooring

Claims (5)

  A plurality of grooves are formed at predetermined intervals or at appropriate intervals so as to cross both the front and back surfaces of the plate material, and a damping sheet made of a viscoelastic body is fitted into the groove, and the front and back surfaces are covered, and formed on the surface of the plate material. The sound insulating floor board, wherein the direction of the groove and the direction of the groove formed on the back surface are three-dimensionally crossed. A composite material composed of a base material and a surface layer material to be bonded to the front surface and / or back surface of the base material,
A plurality of grooves or holes are formed in the surface layer material with a predetermined gap or an appropriate gap, a portion where the grooves or holes are formed is a thin skin portion, and a portion where no groove or hole is formed in the surface layer material is a thick material portion A sound insulating floor board, wherein the thin skin portion and the thick material portion are connected.   The sound insulating flooring material according to claim 2, wherein the thin skin portion and the thick material portion are alternately and continuously formed, and a damping sheet made of a viscoelastic body is fitted into the groove or hole and the front and back surfaces are covered.   The sound insulation floor board according to any one of claims 1 to 3, wherein the outer diameter is 550 to 650 mm in length and 400 to 500 mm in width.   The sound insulating floor board according to any one of claims 1 to 4, wherein a corner is disposed with a gap on a vibration isolator formed in a square board and embedded in a hole of the sound absorbing material, and a plywood and a sound attenuating sheet are disposed on an upper surface.

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