JPH0738333U - Soundproof floor structure in wooden houses - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to suppress the propagation of heavy floor impact sound due to children's jumps and the like on the upper floors to the lower floors, and to perform on-site construction with almost no change in appearance and external dimensions from the conventional one. Provide a soundproof floor structure for wooden houses that has little effect on the property. [Structure] A receiving plate 5 is provided between the floor joists 3, and the floor joists 3 are
A floor structure in which an injection hole 8 is formed in the upper floor plywood 6 and a sound insulating layer 2 formed by injecting a heavy fluid material such as mortar and hardening the same through the injection hole 8 onto the receiving plate 5 is formed. And

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a floor structure capable of suppressing the heavy floor impact sound of the upper floor in a two-story or three-story wooden house.

[0002]

[Prior art]

 In recent years, the propagation of floor impact sound from the upper floor to the lower floor has become a problem in 2-story and 3-story wooden houses, especially in multi-story houses. Lightweight floor impact noise caused by walking or moving furniture is related to the cushioning of the floor surface.For example, by laying a carpet on the floor surface, its propagation can be suppressed, but the jumping of children is prevented. The heavy floor impact sound in the low sound range like that mainly relates to the rigidity of the floor structure, and when the sound insulation layer is used to suppress it, the sound insulation effect is larger for airtight and heavier ones. A heavy sound insulation layer is formed on the upper surface of the floor plywood 17 of the wooden floor 16 of the second floor by placing a heavy fluid material such as mortar 18 thickly or by laying a thick board material such as ALC. Measures such as suppressing are taken.

[0003]

[Problems to be solved by the device]

 However, as shown in FIG. 3, when the mortar 18 is cast on the floor plywood 17, the mortar 18 needs to have a thickness of 40 mm or more, which lowers the ceiling height in the room and also in the opening. The lower frame 20 is required for the fitting 19 to be accommodated. In the wall assembly, from the viewpoint of curing the interior plaster board 21, it is necessary to add a lower frame member 23 to the wall panel 22, and further, There was a problem that construction work could not be performed on the floor surface until the mortar 18 that was set hardened. Further, even when a solid plate material such as ALC is laid, there is a problem that the ceiling height becomes low and a lower frame is required for fitting fittings.

In consideration of these problems, the present invention suppresses the propagation of heavy floor impact sound on a wooden floor, prevents the ceiling height from being lowered due to the raised floor surface, and allows the fitting of openings to be used. Providing a soundproof floor structure for wooden houses that does not change the frame, such as installing a lower frame to settle or cure the interior gypsum board, and does not hinder the construction work of other parts. The purpose is.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a receiving plate between floor joists, forms an injection hole in a floor plywood on the floor joist, and through the injection hole, applies heavy flow to the receiving board. We propose a soundproof floor structure in a wooden house with a sound insulation layer formed by pouring and hardening the material.

[0006]

[Action]

 A wooden frame composed of a wooden frame made of floor joists and a floor plywood covering and covering the timber.A support plate is provided between the floor joists inside the wooden floor, and heavy mortar flow from the injection holes of the floor plywood. A sound insulation layer can be formed in the wooden floor by injecting the material and curing it.

Most of the heavy floor impact sound generated on the floor upper surface is blocked by the sound insulation layer, so that it can be prevented from propagating to the lower floor. In addition, since the wooden floor is the same in appearance and external dimensions as the conventional wooden floor, the ceiling height is not lowered and a new lower frame is not required due to the sound insulation layer formation. . Furthermore, the construction work can be continued on the floor without dusting the fluid material such as mortar.

[0008]

【Example】

 Hereinafter, a soundproof floor structure of the present invention will be described with reference to the drawings according to embodiments. FIG. 1 is a perspective view of a main part of a soundproof floor structure according to the first embodiment of the present invention. In this soundproof floor structure, mortar is injected into a wooden floor 1 mounted on a wall structure to serve as a sound insulation layer. The layer 2 is formed.

The wooden floor 1 is mainly composed of a floor panel made of a wooden frame in which the floor joists 3 are combined, and the piers 4 are nailed along both lower side surfaces of each floor joist 3 and supported by the pier 4. The mortar receiving plywood 5 made of structural plywood is attached to the shape, the floor plywood 6 made of structural plywood is nailed to the upper surface of the floor joist 3, and the underground floor board 7 made of plaster board is nailed to the lower surface of the floor joist 3. The floor plywood 6 is provided with holes at a plurality of appropriate positions corresponding to the floor joists 3 to form mortar injection holes 8. This wooden floor 1 is manufactured at the factory, and can be brought into the field and mounted on the wall structure as it is, which has excellent local workability.

After mounting the wooden floor 1 on the wall assembly, mortar is injected into the mortar through the mortar injection hole 8 to cure the mortar, and a sound insulation layer formed by the mortar layer 2 is formed on the mortar receiving plate 5. It is what is done. In this soundproof floor structure, floor finishing is performed by applying carpet or flooring to the upper surface of the floor plywood 6, and ceiling finishing is performed by attaching a decorative sheet or the like to the ceiling base plate 7. Be done.

According to this soundproof floor structure, the heavy floor impact sound generated on the floor surface is propagated from the floor plywood 6 to some extent through the floor joist 3 to the ceiling base plate 7 side, but most of it occupies a large area. The sound is shielded by the mortar layer 2 and the propagation can be blocked.

Further, according to this soundproof floor structure, a bulky sound insulating layer is not provided on the floor surface, and therefore, it is not necessary to join a lower frame or the like for that purpose. In addition, the construction work can be continued on the floor surface without curing the injection mortar. Since the mortar receiving plate 5 and the mortar layer 2 in the wooden floor 1 have a function of supporting the floor joists 3 from both sides, it is not necessary to prevent the floor joists from rolling, which is conventionally required.

FIG. 2 shows a soundproof floor structure according to a second embodiment of the present invention. Instead of the floor joist 3 of the wooden floor 1 of the first embodiment, a wooden I-shaped composite beam 9 called a so-called I-beam is used. There are some differences. That is, the second embodiment is an embodiment in which the floor joists are made of wood I-type composite beams. This wood I-type composite beam 9 is a composite beam in which long rectangular members 9A, 9B are combined to sandwich a strip 9C made of structural plywood, and has the same action as the floor joist 3.

In the wooden floor 10 using the wooden I-type composite beam 9, it is possible to support the mortar receiving plywood 11 by utilizing the shoulder of the lower rectangular member 9B without the need for a splint. It is the same as in the case of the wooden floor 1 that the floor plywood 13 having the mortar injection holes 12 drilled on the upper surface of the wooden I-type composite beam 9 and the ceiling base material 14 on the lower surface are nailed in the same manner as the wooden floor 1. By injecting mortar from the mortar injection hole 12, a mortar layer 15 is formed as a sound insulation layer in the wooden floor 1.

Therefore, even with this soundproof floor structure, most of the heavy floor impact sound generated on the floor upper surface can be shielded by the mortar layer 15, and the work on the floor surface can be performed without being affected by the injection hardening of the mortar. It is possible to obtain the same effects as those of the soundproof floor structure of the first embodiment, such as being able to continue.

In the above examples, the wooden floor was manufactured at the factory, carried in and installed on site, but the same procedure is applied to the case where such a wooden floor is constructed on site. Shaped. Further, an example in which a kneading mortar is used to form a heavy sound insulation layer by injection is shown, but a powdery mortar that hardens by absorbing moisture in the air can also be used as the mortar. Furthermore, in the present invention, the heavy fluid material that is poured to form the hardened sound-insulating layer is not limited to mortar, but may be concrete or lightweight concrete, for example.

[0017]

[Effect of device]

 As is clear from the above description, the soundproof floor structure of the present invention has the same external appearance and external dimensions as those of the conventional floor structure, and has the heavy sound insulation layer formed inside by the injection means. Therefore, it is possible to suppress the propagation of the heavy floor impact sound generated on the floor surface to the lower floor by this heavy sound insulation layer, and relatively, as in the case of providing a bulky sound insulation layer on the conventional floor surface. Without lowering the ceiling height or providing a lower frame due to the fitting of the opening fittings, and without adding a lower frame material because of the need for curing the interior plaster board of the wall structure, Furthermore, after placing the mortar, it is possible to continue the construction work on the floor without waiting for it to harden.Use the construction method in which the wooden floor is manufactured at the factory and assembled on the wall as it is. Has the effect of significantly improving on-site workability. That. Furthermore, according to the present invention, it is possible to obtain an incidental effect that does not require the anti-roll between floor joists, which has been conventionally required.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a soundproof floor structure using a wooden floor according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a main part of a soundproof floor structure using a wooden floor according to a second embodiment of the present invention.

FIG. 3 is a sectional view of a main part of a conventional soundproof floor structure using a wooden floor.

[Explanation of symbols]

 1 …… Wooden floor 2 …… Mortar layer 3 …… Floor joist 4 …… Splints 5 …… Mortar receiving plywood 6 …… Floor plywood 7 …… Ceiling base plate 8 …… Mortar injection hole 9 …… Wooden I type composite beam 10 …… Wooden floor 11 …… Mortar receiving plywood 12 …… Mortar injection hole 13 …… Floor plywood 14 …… Ceiling base plate 15 …… Mortar layer

Claims (1)

[Scope of utility model registration request] 1. A receiving plate is provided between floor joists, an injection hole is formed in a floor plywood on the floor joist, and a heavy fluid material is injected through the injection hole onto the receiving board to be cured. A soundproof floor structure in a wooden house, which is characterized by the formation of a sound insulation layer.