JP2005264615A - Double floor sound insulation structure, double floor sound insulation member installation method, and partition position change method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sound insulation structure for an upper floor, a sound insulation member mounting method for a double floor, and a partition position changing method which have good workability and have a simple structure and a high precision sound insulation effect.
SOLUTION: A sound insulation member 6 installed under a floor of an upper floor 2 constituting a double floor 1 is constituted by a bag body 7 and a urethane foam 8 molded inside the bag body 7. The sound insulation structure of the double floor 1 has a configuration in which the sound insulation member 6 is installed under the floor of the upper floor 2 so as to come into contact with the upper floor 2 with a pressing force capable of suppressing vibration generated in the upper floor 2. Thereby, the vibration generated in the upper floor 2 is absorbed by the sound insulation member 6, and the vibration transmitted to the lower floor 3 via the floor support member 4 is suppressed to exert a sound insulation effect. The sound insulation member 6 is obtained by forming a urethane foam 8 by foaming and curing a urethane foam liquid material under the floor of the upper floor 2, and can thereby exert a pressing force sufficient to suppress vibration generated in the upper floor 2. The sound insulation member 6 can be arranged.
[Selection] Figure 1

Description

  The present invention relates to a sound insulation structure for a double floor, a sound insulation member mounting method for a double floor, and a partition position changing method.

  Conventionally, when installing a sound insulation material on a double floor constructed by a floor advance construction method that constructs a partition wall for partitioning a living room after the floor construction, the sound insulation material and the upper part Sufficient construction accuracy such as a gap between the floor and the floor cannot be obtained, and accordingly, it has been difficult to add a sufficient sound insulation effect to the double floor.

In such a case, as shown in Patent Document 1, when a partition wall for partitioning a living room is installed on the upper floor, an elastic member is disposed on the upper surface of the wall support member that supports the partition wall, and the elastic member A configuration has been devised in which soundproofing (sound insulation) / vibration-proofing effects are obtained by supporting the upper floor and the partition wall via the door.
Japanese Patent Application No. 2001-218596 (see FIG. 1)

  However, since the configuration described above is applied when a partition wall is installed on the upper floor, a sound insulation effect can be imparted with high accuracy even in a double floor where the partition wall is not necessarily arranged on the upper floor. A configuration that can be used is desired.

  In view of the above circumstances, the present invention provides a sound insulation structure for an upper floor, a sound insulation structure for an upper floor, a double floor sound insulation member mounting method, and a partition position changing method that have good workability and a high-accuracy sound insulation effect with a simple configuration. It is aimed.

  The sound insulation structure of the double floor according to claim 1 is constructed by a floor prior construction method for constructing a partition wall for partitioning a living room after floor construction, and a plurality of lower floors, upper floors, and lower floors are arranged. A sound insulation structure of a double floor comprising a floor support member for supporting the upper floor, wherein the sound insulation member abuts the upper floor under the floor of the upper floor with a pressing force capable of suppressing vibration of the upper floor. The sound insulating member is provided with a bag body and a urethane foam formed inside the bag body in a state where the bag body is located below the upper floor, and the foam hardening provided in the bag body. An injection port for injecting a urethane foam liquid material that becomes a urethane foam is disposed in a communication hole that communicates the upper floor and the lower floor of the upper floor.

  The sound insulation structure for a double floor according to claim 2 is characterized in that the urethane foam constituting the sound insulation member is provided with a supporting strength capable of supporting a partition wall for partitioning a living room.

  The sound insulation member mounting method for the double floor according to claim 3, after inserting the bag body under the floor from the communication hole communicating the floor and the floor formed at a predetermined position of the upper floor constituting the double floor, The first step of fixing the injection port of the bag body to the communication hole, and the construction of a sound insulation member by injecting urethane foam liquid material from the injection port of the bag body and foaming and curing the urethane foam material It is characterized by comprising the second step.

  The sound insulation member mounting method for a double floor according to claim 4 is a second step in which the urethane foam liquid material is injected from the injection port of the bag body using an injection device capable of controlling the injection operation of the urethane foam liquid material. It is characterized by doing.

  The partition position changing method according to claim 5, wherein a communication hole that communicates between the floor and the floor is drilled at a new partition position of the upper floor that constitutes the double floor, and the bag body is removed from the communication hole. A first step of fixing the inlet of the bag body to the communication hole, and then injecting urethane foam liquid material from the inlet of the bag body and foaming and curing to form a urethane foam And it is characterized by comprising the 2nd process of constructing a new sound insulation member, and the 3rd process of constructing a partition wall in a new partition position.

According to the sound insulation structure of the double floor according to claim 1, the connection structure of the upper floor and the sound insulation member is a simple configuration in which the sound insulation member is brought into contact with the upper floor with a pressing force capable of suppressing the vibration of the upper floor. Therefore, workability is good and the workability can be greatly improved.
In addition, since the sound insulation member installed under the upper floor is a member constructed under the upper floor, there is no gap between the upper floor and the vibration of the upper floor is accurately suppressed. Since it is the structure which can make the pressing force which can be applied to an upper member, it becomes possible to express the sound insulation performance which a sound insulation member has with a simple structure reliably.
Furthermore, the structure in which the sound insulation member constructed under the upper floor is installed under the upper floor is high because the sound insulation member is always formed in a shape that fits the double floor. It is possible to reliably provide sound insulation performance to the double floor with versatility.

  According to the sound insulation structure of the double floor according to claim 2, since the sound insulation member can also be diverted as the wall support member of the partition wall used when partitioning the living room, it is generally provided under the floor when constructing the partition wall. Since it is not necessary to use a wall-floor support member and construction costs can be significantly reduced along with material costs, it is possible to greatly contribute to the reduction of construction costs.

According to the double-floor sound insulation member mounting method according to claim 3, since the double floor is constructed by applying the floor prior construction method, the sound insulation member can be mounted and constructed. Since it is not affected by the construction such as the installation of the sound insulation member, the material loss can be greatly reduced, and it is possible to perform the work efficiently following the conventional floor advance method.
Further, since the work related to the construction of the sound insulation member can be performed from the floor of the upper floor, workability can be greatly improved, and the construction cost can be greatly reduced and the construction period can be shortened.

According to the double-floor sound insulation member mounting method according to claim 4, since the injection device capable of controlling the work related to the injection of the urethane foam liquid material is applied, the injection amount, the foaming time, etc. without requiring a skilled technique Therefore, the pressing force on the floor by the sound insulating member can be easily adjusted.
For this reason, it becomes possible to construct a structure for connecting the sound insulation member and the upper floor more accurately, for example, by suppressing a phenomenon of pushing up the upper floor due to excessive pressing force, and thus imparting high sound insulation performance to the double floor. It becomes possible.
Furthermore, it is possible to easily attach a high-quality sound insulation member having high versatility without causing material loss to the double floor.

According to the partition position changing method according to claim 5, the sound insulation member that functions as a member that supports the partition wall can be constructed at a desired position by a simpler method on the upper floor. There is no need to perform a complicated operation of constructing a partition wall after constructing a wall support member on the lower floor after being removed.
For this reason, the workability related to the change of the partition position can be greatly improved, the layout of the living room can be changed quickly, and the layout can be changed with a free plan without any restrictions on the construction of the partition wall. Can be carried out.

  The double-floor sound insulation structure, double-floor sound insulation member mounting method and partition position changing method of the present invention are shown in FIGS. The present invention forms a reliable connection structure between the upper floor and the sound insulation member by installing a sound insulation member constructed under the floor of the upper floor with respect to the double floor that has been constructed by the preceding floor construction method. The sound insulation structure of the double floor with high sound insulation performance is constructed.

  As shown in FIG. 1, a sound insulation member 6 is disposed on the double floor 1. Here, the double floor 1 is constructed by a floor advance construction method for constructing a partition wall 5 for partitioning a living room after the floor construction. A plurality of double floors 1 are installed on the lower floor 3 with a predetermined separation interval. The floor support member 4 and the upper floor 2 supported by the floor support member 4 are provided. On the upper floor 2, a floor surface finishing material such as flooring is installed.

A sound insulation member 6 is installed below the partition wall 5 below the upper floor 2 constituting the double floor 1. The sound insulation member 6 includes a bag body 7 formed of a material such as a vinyl sheet that can be freely deformed, and a urethane foam body 8 sealed inside the bag body 7.
The urethane foam 8 is an elastic member generally used as a sound insulating material, and is formed by foaming and curing a liquid urethane foam material. In the present embodiment, for the purpose of forming the urethane foam 8 in a three-dimensional shape, the inside of the bag body 7 is filled with the urethane foam liquid material, and is limited to the horizontal flow of the urethane foam liquid material. Is given.
Note that the sound insulation member 6 does not necessarily have to use the bag body 7, and any structure may be used as long as the three-dimensional urethane foam body 8 can be formed by suppressing the flow of the urethane foam liquid material.

  In the sound insulation structure of the double floor 1 provided with the sound insulation member 6 having such a configuration, the sound insulation member 6 is brought into contact with the upper floor 2 with a pressing force capable of suppressing vibration generated in the upper floor 2 at least. It is configured to be installed under the floor. Such a configuration absorbs vibration generated in the upper floor 2 by the sound insulation member 6, that is, the urethane foam 8 that is an elastic member, and is thereby transmitted to the lower floor 3 through the floor support member 4. It suppresses vibration and exhibits a sound insulation effect.

In the present embodiment, the sound insulating member 6 is formed so that a pressing force sufficient to support the partition wall 5 constructed on the upper floor 2 can be applied to the upper floor 2. Thereby, the sound insulation member 6 has a supporting strength capable of supporting the partition wall 5, and has a structure of not only a sound insulation function but also a wall support function for supporting the partition wall 5.
As described above, the sound insulation member 6 is adjusted as appropriate to the pressing force to the upper floor 2 so as to have a sound insulation function when the partition wall 5 is not present, and when the partition wall 5 is present, It can be used as a member having a wall support function.

  The sound insulation member 6 is installed on the double floor 1 constructed in advance by the floor advance construction method, and the urethane foam liquid material is foam-cured inside the bag body 7 under the floor of the upper floor 2. This is a member formed by molding the urethane foam 8. Therefore, regardless of the height of the upper floor 2 with respect to the lower floor 3, the sound insulation member 6 applies a sufficient pressing force to the upper floor 2 to suppress vibration generated in the upper floor 2. It is the structure which can do.

A sound insulation member mounting method for the double floor 1 using the sound insulation member 6 having the above-described configuration will be described below.
(First step)
As shown in FIG. 2 (a), in the first step, a communication hole 2a for communicating between the floor and the floor is formed at a predetermined position of the upper floor 2 constituting the double floor 1 constructed by the preceding floor construction method. 2 (b), the bag body 7 constituting the sound insulation member 6 is inserted under the floor from the communication hole 2a, and the inlet 7a of the bag body 7 is fixed to the communication hole 2a.
The communication hole 2a is not necessarily drilled after the double floor 1 is constructed, and may be provided in advance at a predetermined position on the upper floor 2.
Further, in the present embodiment, an angle 2b made of vinyl chloride is installed at the opening edge of the communication hole 2a for the purpose of preventing damage to the opening edge of the communication hole 2a that is likely to occur during construction work of the sound insulating member 6. However, it is not always necessary to apply.

(Second step)
As shown in FIG. 2C, in the second step, the sound insulation member 6 is formed by injecting a urethane foam liquid material from the injection port of the bag body 7 and foaming and curing the urethane foam liquid material to form the urethane foam body 8. To construct.
At this time, the injection amount of the urethane foam liquid material that becomes the urethane foam 8 by foam curing so that the sound insulation member 6 can act on the upper floor 2 with a pressing force sufficient to suppress vibration generated in the upper floor 2. And the foaming time are appropriately adjusted. In addition, when it is desired to support the partition wall 5 on the sound insulation member 6 after installation, the sound insulation member 6 is made of urethane by foaming curing so that the pressing force sufficient to support the partition wall 5 can act on the upper floor 2. What is necessary is just to adjust suitably the injection amount and foaming time of the urethane foam liquid material used as the foam 8.

  In addition, in the operation of injecting the urethane foam liquid material, an injection device 9 that can control the operation related to the injection of the urethane foam liquid material such as the injection amount and the injection time is used. A phenomenon in which a pressing force is applied is suppressed, and the urethane foam 8 contained in the bag body 7 can be brought into contact with the sound insulating member 6 with a predetermined pressing force.

  By such a process, the sound insulation structure of the double floor 1 in which the sound insulation member 6 is attached to the double floor 1 with high fitting accuracy is constructed, and high performance sound insulation performance can be imparted to the double floor 1. It can be done.

  By the way, as described above, the sound insulation member 6 functions as a support member for the partition wall 5 by adjusting the pressing force applied to the upper floor 2. Then, the partition position change method using the sound insulation member 6 when it becomes necessary to change the partition position of a room by the layout change of a room, etc. is shown below.

(First step)
As shown in FIG. 3, a communication hole 2c that communicates between the floor and the floor is drilled at a partition position to be changed in the upper floor 2, and a bag body 7 is inserted into the floor of the upper floor 2 from the communication hole 2c. The injection port of the bag body 7 is fixed to the communication hole 2c.
(Second step)
Next, in the same manner as the construction method of the sound insulation structure of the double floor 1, a urethane foam liquid material is injected from the injection port of the bag body 7 and foamed and cured to form a urethane foam 8, and a new sound insulation member 6a. Build up.
At this time, the injection amount and foaming of the urethane foam liquid material that becomes the urethane foam 8 by foaming hardening are applied so that a pressing force sufficient to support the new partition wall 5a can be applied to the new sound insulation member 6a. Adjust the time.
(Third step)
Thereafter, the existing partition wall 5 is removed, and a new partition wall 5a is constructed at the partition position to be changed.

According to the configuration described above, the sound insulation structure of the double floor 1 is such that the structure in which the upper floor 2 and the sound insulation member 6 are joined causes the sound insulation member 6 to contact the upper floor 2 with a pressing force capable of suppressing the vibration of the upper floor 2. Therefore, the workability is good and the workability can be greatly improved.
Moreover, since the sound insulation member 6 installed under the floor of the upper floor 2 is a member constructed under the floor of the upper floor 2, there is no gap between the upper floor 2 and the sound insulation member 6 Since it is the structure which can act on the upper member 2 with the pressing force which can suppress the vibration of the upper floor 2 with sufficient precision, it becomes possible to express the sound insulation performance which the sound insulation member 6 has with a simple structure reliably.
Furthermore, the structure in which the sound insulation member 6 constructed in a state located below the upper floor 2 is installed under the floor of the upper floor is formed into a shape in which the sound insulation member 6 is always arranged with a shape suitable for the double floor 1. Therefore, it is possible to reliably impart sound insulation performance to the double floor 1 with high versatility.

  On the other hand, since the sound insulation member 6 can be used as a wall support member of the partition wall 5 by adopting a configuration in which the pressing force sufficient to support the partition wall 5 can be applied to the upper floor 2, the sound insulation member 6 can also be diverted. In general, when the partition wall 5 is constructed, it is not necessary to use a wall floor support member provided under the floor of the upper floor 2, and the construction cost can be greatly reduced together with the material cost. .

The sound insulation member mounting method for the double floor 1 is that the sound insulation member 6 can be installed after the construction of the double floor 1 by applying the floor prior construction method. Therefore, the material loss can be greatly reduced and the work can be efficiently performed following the conventional floor advance method.
Moreover, since the operation | work which concerns on construction of the sound-insulation member 6 can be implemented from the floor | floor of the upper floor 2, workability | operativity can be improved significantly and it becomes possible to contribute greatly to construction cost reduction and construction period shortening.

In addition, since the injection device 9 that can control the operation related to the injection of the urethane foam liquid material is applied when injecting the urethane foam liquid material, it is possible to appropriately adjust the injection amount, the foaming time, etc. without requiring a skilled technique. Therefore, the pressing force on the floor by the sound insulating member 6 can be easily adjusted.
For this reason, it becomes possible to construct the structure of the sound insulation member 6 and the upper floor 2 more accurately, for example, by suppressing the phenomenon of pushing up the upper floor 2 due to excessive pressing force, and thus double the high sound insulation performance 6. It can be applied to the floor.
Furthermore, it is possible to easily attach a high-quality sound insulation member having high versatility without causing material loss or the like to the double floor 1.

According to the partition position changing method using the sound insulating member 6, the sound insulating member 6 that functions as a member that supports the partition wall 5 can be constructed at a desired position by a simpler method on the upper floor 2. After the upper floor 2 is removed and a wall support member is constructed on the lower floor 3, there is no need to perform a complicated operation such as constructing a new partition wall 5a.
For this reason, the workability related to the change of the partition position can be greatly improved, the layout of the living room can be changed quickly, and the layout can be freely planned without any restrictions on the construction of the partition wall 5. Changes can be implemented.

It is a figure which shows the detail of the sound insulation structure of the double floor which concerns on this invention. It is a figure which shows the sound insulation member attachment construction method of the double floor which concerns on this invention. It is a figure which shows the change method of the partition position using the sound insulation member which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Double floor 2 Upper floor 3 Lower floor 4 Floor support member 5 Partition wall 6 Sound insulation member 7 Bag body 8 Urethane foam 9 Injection apparatus

Claims (5)

A double floor comprising a lower floor, an upper floor, and a plurality of floor support members arranged on the lower floor and supporting the upper floor, which are constructed by a floor advance construction method for building a partition wall for partitioning a living room after floor construction Sound insulation structure of the floor,
Under the floor of the upper floor, a sound insulation member is disposed so as to contact the upper floor with a pressing force capable of suppressing vibration of the upper floor,
The sound insulating member includes a bag body and a urethane foam that is molded inwardly in a state where the bag body is located below the upper floor,
An injection port for injecting a urethane foam liquid material that becomes a urethane foam by foam curing provided in the bag body is disposed in a communication hole that connects the floor above and the floor below provided in the upper floor. Characteristic double floor sound insulation structure. In the sound insulation structure of the double floor according to claim 1,
A double floor sound insulation structure, wherein the sound insulation member is provided with a supporting strength capable of supporting a partition wall for partitioning a living room. First, a bag body is inserted under the floor from a communication hole communicating with the floor above and below the floor formed at a predetermined position of the upper floor constituting the double floor, and then the inlet of the bag body is fixed to the communication hole. Process,
Sound insulation of a double floor characterized by comprising a second step of constructing a sound insulation member by injecting a urethane foam liquid material from the inlet of the bag body and forming a urethane foam by foaming and curing. Member mounting method. In the sound insulation member mounting method of the double floor according to claim 3,
In the second step, the double floor sound insulation member mounting method is characterized in that the urethane foam liquid material is injected from the injection port of the bag body using an injection device capable of controlling the operation of injecting the urethane foam liquid material. A communication hole that communicates between the floor and under the floor is drilled at a new partition position of the upper floor constituting the double floor, and after inserting the bag body under the floor of the upper floor from the communication hole, A first step of fixing the inlet to the communication hole;
A second step of constructing a new sound insulation member by injecting urethane foam liquid material from the inlet of the bag body and foaming and curing to form a urethane foam;
A partition position changing method comprising the third step of constructing a partition wall at a new partition position.

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