JP2010248862A - Floor structure, its construction method and its regeneration method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a soundproof floor structure for a wooden building capable of minimizing lamination on an upstairs floor, exerting an effect of eliminating a floor impact sound even if a space between a ceiling and upstairs is small, and lowering a lightweight-floor impact sound mainly and effectively without affecting the height of the building. <P>SOLUTION: The soundproof floor structure is characterized by a multilayer structure including: a base material 4 laid on an underfloor material 10; spacer materials 7 formed of band plate materials bonded almost in parallel with the upper surface of the base material 4 at intervals; air layers 5 formed between the spacer materials 7; and an upper-floor material 6 bonded to the upper surface of the spacer materials 7. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a floor structure of a building, in particular, a soundproof floor structure useful as a floor board of a wooden house having a plurality of floors of two or more floors, a construction method thereof, and a regeneration method thereof.

  Noise (impact sound) generated in the house includes, for example, heavy floor soft sound caused by the impact of heavy and soft things such as children jumping and running, high heel walking, furniture movement, or the falling sound of a spoon dropped from a table. There are light floor impact sounds due to the impact of relatively light and hard objects such as, and air-borne sound that propagates in the air, such as TV and speaking voices, especially in wooden houses with multiple floors above the second floor It is necessary to make various measures to avoid the adverse effects caused by the generated floor impact sound being transmitted to the lower floor.

  In heavy buildings such as reinforced concrete, it is easy to lay a floor made of heavy concrete between the upper and lower floors, making the concrete floor thicker, and with a floor structure incorporating cushioning materials Therefore, it is possible to ensure sufficient sound insulation performance. As such a sound insulation floor structure, there exists a structure as described in following patent document 1. FIG.

  The soundproof floor structure described in Patent Document 1 is a structure in which a damping steel plate is attached to the lower surface of a flooring and a dynamic damper is provided below the damping steel plate. In the structure of Patent Document 1, a damping steel plate exhibits a vibration reducing effect for vibrations in a high frequency region, and a dynamic damper exhibits a vibration reducing effect for vibrations in a low frequency region.

Japanese Patent No. 2683447

However, for example, laying heavy objects such as concrete boards or the above-mentioned braking steel sheets in a lightweight building such as a wooden house is a special process, so that the construction cost increases and only the floor surface is composed of the above heavy objects. In the structure, there is a drawback that it is difficult to eliminate vibration sound propagating through beams and columns.
In addition, the above-described conventional structure that suppresses the occurrence of impact itself by increasing the rigidity of the floor structure of the upper floor room has a problem that the structure is excessively designed and the cost is increased.

  Therefore, in the wooden house, various floor structures combining a cushioning material and a sound absorbing material have been developed, and attempts have been made to eliminate vibration noise. However, in general, heavy floor impact sound has many low-frequency components, so vibration suppression is effective, and lightweight floor impact sound has many components in the mid-high range, so cushioning members are effective. The conventional soundproof floor structure cannot be an effective means as a floor structure for effectively reducing the lightweight floor impact sound.

  In addition, the ceiling space plays an effective role as a means of reducing such floor impact noise, but conventionally, there was a limited dimension between this ceiling and the upper floor, so that cushioning material and sound absorbing material The floor structure combined with the floor has little effect on the overall height of the building, but recently there is a tendency to increase the ceiling height, and there is no room for the limited dimension between the ceiling and the upper floor. Combining by stacking on floors has become difficult. Furthermore, the wider the space between the ceiling and the upper floor, the more effective the floor impact sound is. However, the space is narrowed due to the tendency to increase the ceiling height, and the effect on the floor impact sound is diminished.

  Therefore, the present invention solves the above-mentioned problems, and the object of the present invention is to minimize the stacking on the upper floor and to generate floor impact sound even if the space between the ceiling and the upper floor is small. Soundproof floor structure of wooden structure that can effectively reduce light floor impact sound mainly without affecting the height of the building, especially in multiple floors of two or more floors. The object is to provide an optimum floor structure as a soundproof floor structure between upper and lower floors in a wooden house.

  Furthermore, an object of the present invention is to provide a construction method and a regeneration method capable of effectively performing the construction and renovation of the floor structure.

  The floor structure according to the first aspect of the present invention includes a base material 4 laid on the upper surface of the underfloor material 10, and a band provided by adhering to the upper surface of the base material 4 in a substantially parallel manner with a space therebetween. A multi-layer structure comprising: a spacer material 7 made of a plate material; an air layer 5 formed within the space of the spacer material 7; and a floor material 6 installed by being adhered to the upper surface of the spacer material 7. It is characterized by being.

  Due to the multilayer structure and the presence of the air layer 5 formed in the intermediate layer, it is possible to effectively reduce or insulate mainly light floor impact sound and air propagation sound by a structure having a relatively thin upper and lower thickness.

  The invention of claim 2 is characterized in that the spacer material 7 is formed of a band plate-like plywood or a wood fiber board having an adhesive 7a layer covered with release paper 7b on both sides.

  By using such a spacer material 7, construction and regeneration construction described later are easy and efficient, and the formation of the air layer 5 is facilitated. Further, since the formation of the air layer 5 is formed by the interval between the adjacent strip-like spacer materials 7, the load on the floor is received in a distributed manner by the surface of the spacer material 7, and the air layer 5 is crushed even by use. The soundproofing effect will be sustained.

  In the invention of claim 3, the base material 4 and the spacer material 7 are formed of a wood fiber board, and the base material is formed of a low density fiber board in which the density of the wood fibers is lower than that of the spacer material. It is characterized by that.

  The invention of claim 4 is characterized in that the spacer material 7 is formed of a medium density fiber board (MDF), and the base material is formed of an insulation fiber board.

  Here, the fiber board is a wooden board obtained by mixing digested wood fibers with an adhesive and hot pressing. Insulation board (density: less than 0.35 / cm 3), MDF (density: 0.35 g / cm 3 or more, less than 0.80 g / cm 3), hard board (density: 0.80 g / cm 3 or more) It becomes.

  According to a fifth aspect of the present invention, the air layer 5 has a vertical width of about 3 mm to about 5 mm, preferably about 4 mm, and a horizontal width of about 250 mm to about 450 mm, preferably about 300 mm.

  By forming the multilayer buffer layer and the air layer in the middle layer portion of the floor structure by using the structure according to the third to fifth aspects, mainly light floor impact sound and air propagation sound can be more efficiently reduced or Sound insulation can be achieved.

  In the construction method of the floor structure according to the present invention, the base material 4 is laid on the upper surface of the underfloor material 10, and the adhesives 7a and 7a previously formed on the upper and lower surfaces are covered with the upper and lower release papers 7b and 7b. A plurality of spacer materials 7 are provided by adhering to the upper surface of the base material 4 with the lower release paper 7b peeled off, and an air layer 5 is formed in the space of the spacer material 7 to form a spacer material. While the upper release paper 7 b is peeled off, the floor material 6 is adhered to the upper surfaces of the spacer material 7 and the air layer 5.

  According to the above construction method, the base material 4, the spacer material 7, and the floor top material 6 are adhered while peeling the release paper 7 b above and below the spacer material 7, and the adhesive is applied to the adhesive surface of each member on site. Therefore, the work is easy, the time for curing the adhesive is saved, and it is efficient. In particular, the upper release paper 7b is peeled off halfway, the long plate-like floor top material 6 is adhered to the peeled adhesive surface, and after the adhesion, the upper release paper 7b is further peeled to obtain the next long plate shape. By adhering the flooring material 6 to the previous flooring material 6 and adhering the flooring material 6 in sequence, the floor finishing surface is constituted, so that there is no stickiness due to the adhesive during the floor finishing operation, The construction work of the floor finish surface becomes easy. Moreover, according to this construction method, since the intermediate air layer 5 is formed within the space between the adjacent spacer materials 7, the formation of the air layer 5 is easy and reliable.

  In the method for regenerating a floor structure according to the present invention, the floor material 6 and the spacer material 7 constituting the existing floor structure that has become obsolete are peeled while being adhered to each other, and then the base material 4 Is peeled from the underfloor material 10. Recycled floor treatment is performed on the top surface of the peeled floor material 10. As the reclaimed floor treatment, various reclaimed floor treatments such as the construction of a new multi-layered soundproof floor structure as described above or a normal flooring process on the upper surface of the underfloor material 10 can be performed.

  In the recycling method, as shown in the third to fifth aspects, since the base material 4 is formed of a low-density fiber board in which the density of wood fibers is lower than that of the spacer material 7, the floor top material 6 and the spacer material The base material 4 is stronger than the adhesive strength between the spacer material 7 and the base material 4 and the surface layer of the base material 4 is somewhat cut off when the flooring material 6 is peeled off during renovation. Since the spacer material 7 is peeled off integrally with the floor covering 6, the peeling work becomes efficient.

  As described above, according to the floor structure of the present invention, due to the presence of the multilayer structure and the air layer formed in the intermediate layer, the light floor impact sound and the air propagation sound are mainly produced by the structure having a relatively thin upper and lower thickness. Efficient reduction or sound insulation can be achieved.

  By forming the multilayer buffer layer and the air layer in the middle layer of the floor structure with the structure according to claims 3 to 5, mainly light floor impact sound and air propagation sound are more efficiently reduced or sound-insulated. be able to.

  According to the construction method of the present invention, the work is easy, the time for curing the pressure-sensitive adhesive can be saved, there is no stickiness due to the pressure-sensitive adhesive, and it is efficient. In addition, since the intermediate air layer is formed within the interval between the adjacent spacer materials, the formation of the air layer is easy and reliable.

  In addition, according to the regeneration method of the present invention, the floor structure remodeling work of the present invention is easy and efficient, and waste materials can be treated at a time.

It is sectional drawing which shows the structure of the floor structure concerning this invention. It is the II-II sectional view taken on the line of FIG. It is an exploded perspective view of the floor structure concerning the present invention. It is a top view explaining the construction process of the floor structure concerning the present invention.

Next, an embodiment of a floor structure according to the present invention will be described with reference to the examples of the drawings.
The floor structure according to the embodiment includes a base material 4 laid on the upper surface of the underfloor material 10 and a spacer material 7 made of a band plate material provided by being adhered to the upper surface of the base material 4 at a distance in parallel. And the air layer 5 formed within the space of the spacer material 7 and the floor material 6 installed by being adhered to the upper surface of the spacer material 7.
The floor structure according to the embodiment forms, for example, a multi-layered soundproof floor board on the upper floor of a wooden house having two or more floors, and is fixed to the upper part of the floor beam of the house.

  The underfloor material 10 has a structure in which the structural plywood 1, the gypsum board 2, and the hard gypsum board 3 are sequentially laminated from the lower layer. The underfloor material 10 may be composed of a single structural plate material.

  As described above, the base material 4 and the spacer material 7 on the upper surface of the underfloor material 10 are formed of a wood fiber board, and the base material is formed of a low density fiber board in which the density of the wood fibers is lower than that of the spacer material. Has been. Specifically, the spacer material 7 is formed of a medium density fiber board (MDF), and the base material is formed of an insulation fiber board.

  The base material 4 constitutes a buffer layer, and in addition to the insulation board, a sound insulation mat or the like can be used.

  The spacer material 7 is formed of a strip-like plywood having a flexible structure or the wood fiber board having an adhesive 7a layer covered with a release paper 7b on both sides.

  The spacer material 7 has a vertical width of about 3 mm to about 5 mm, preferably about 4 mm, and a horizontal width of about 50 mm to about 150 mm, preferably about 100 mm. The air layer 5 has a vertical width of about 3 mm to about 5 mm, preferably about 4 mm, and a horizontal width of about 250 mm to about 450 mm, preferably about 300 mm. By experimenting with the spacer material 7 and the air layer 5 having an upper and lower width of about 4 mm, there is a sufficient soundproofing effect, and even if used for many years, the air layer 3 is not easily crushed and the soundproofing effect is sustained by experiments. It has been confirmed.

  The floor covering 6 is a floor finish and can be subjected to normal flooring. Depending on the place and the place of use, it is possible to apply a floor finishing material made of a synthetic resin material.

Next, the construction method of the floor structure will be described.
The underfloor material 10 is placed and fixed on the upper part of the floor beam on the upper floor of a wooden house having two or more floors. The base material 4 is laid on the upper surface of the underfloor material 10. Next, as shown in FIG. 4, a plurality of spacer materials 7 in which adhesive layers 7 a and 7 a previously formed on the upper and lower surfaces are covered with upper and lower release papers 7 b and 7 b on the upper surface of the base material 4, and the lower release paper 7 b are attached. In the peeled state, the air layer 5 is formed in the space of the spacer material 7 by providing the adhesive in parallel with an interval. The upper release paper 7b of the spacer material 7 thus adhered is peeled from the tip by a predetermined width, and the plate of the top floor material 6 is stuck on the adhesive 7a appearing on the peel surface. After the top floor material 6 is adhered, the upper release paper 7b is further peeled back by a predetermined width, and the next floor material 6 is placed on the adhesive 7a appearing on the release surface. It is made to adhere and adhere to the board of the floor top material 6 of. In this manner, the floor finishing surface is formed by sequentially adhering the plate of the floor material 6 to the upper surface of the base material 4.

  Next, a reforming reproduction method performed when the above floor structure becomes old will be described. In the method for regenerating the floor structure, the floor material 6 and the spacer material 7 constituting the existing floor structure that has become obsolete are peeled in a state where they are adhered to each other, and then the base material 4 is removed from the floor floor. Peel from material 10. A reclaimed floor treatment is applied to the upper surface of the peeled floor material 10. As the reclaimed floor treatment, various reclaimed floor treatments such as the construction of a new multi-layered soundproof floor structure as described above or a normal flooring process on the upper surface of the underfloor material 10 can be performed.

  In the above regeneration method, the spacer material 7 is relatively strongly adhered to the lower part of the floor material 6, and the base material 4 is formed of a low-density fiber board having a lower density of wood fibers than the spacer material 7. When the flooring material 6 is peeled off, the spacer material 7 is peeled off integrally with the flooring material 6 and is easily peeled off to the extent that the surface layer of the base material 4 is somewhat cut off, so that the peeling work becomes efficient. Thereafter, the base material 4 is peeled off.

  In the above-described embodiment, a description has been given of a configuration example in which the floor structure of the present invention is a soundproof floor structure on the upper floor of a wooden house having two or more floors. However, the floor structure of the present invention is also applicable to a soundproof floor structure on the first floor. The floor structure of the present invention has a cushion function in addition to the above-described soundproofing function, and is effectively used as a floor structure for an infant facility such as a kindergarten. It is also used as a sound insulation outer wall structure such as an acoustic room.

DESCRIPTION OF SYMBOLS 10 Underfloor material 1 Plywood for structure 2 Gypsum board 3 Hard gypsum board 4 Base material 5 Air layer 6 Floor material 7 Spacer material 7a Adhesive 7b Release paper

Claims (7)

A base material laid on the upper surface of the underfloor material, a spacer material made of a band plate material provided by being adhered substantially parallel to the upper surface of the base material, and formed within the space of the spacer material A floor structure comprising an air layer and a floor material installed by adhering to an upper surface of a spacer material, and having a multilayer structure. 2. The floor structure according to claim 1, wherein the spacer material is formed of a strip-like plywood or a wood fiber board, and has an adhesive layer covered with release paper on both sides. The base material and the spacer material are formed of a wood fiber board, and the base material is formed of a low density fiber board in which the density of the wood fibers is lower than that of the spacer material. The floor structure described. The floor structure according to claim 1 or 3, wherein the spacer material is formed of a medium density fiber board (MDF), and the base material is formed of an insulation fiber board. 5. The air layer according to claim 1, wherein the air layer has a vertical width of about 3 mm to about 5 mm, preferably about 4 mm, and a horizontal width of about 250 mm to about 450 mm, preferably about 300 mm. The floor structure described. The floor structure construction method according to any one of claims 1 to 5, wherein the base material is laid on the upper surface of the underfloor material, and a plurality of pre-formed adhesive layers are covered with upper and lower release papers. The spacer material is provided by adhering the upper surface of the base material with a gap with the lower release paper peeled off, forming an air layer within the space of the spacer material, and peeling the upper release paper of the spacer material The floor structure construction method is characterized in that the floor material is adhered to the upper surface of the spacer material and the air layer. The floor structure regeneration method according to any one of claims 1 to 5, wherein the floor material and the spacer material constituting the multilayer floor structure are peeled in a state of being adhered to each other, and A method for regenerating a floor structure, wherein a material is peeled from the underfloor material, and a reclaimed floor treatment is applied to an upper surface of the peeled underfloor material.

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