JPH04309746A - Ducting device - Google Patents

Abstract

PURPOSE:To install the duct easily and inexpensively without imparting to a ceiling larger spaces given over to such ducts by a method wherein upper and lower laminated woods are attached to the upper and lower end faces of floor joists and the ducts are formed in the spaces defined by the laminated woods. CONSTITUTION:A two-storied building 1 has a second story floor 3 installed on the upper part of a first floor wall 2 to divide this building into the rooms on the first and second stories. In this case, the conditioned air by an air conditioner 19 is sent into a main duct 8 laying along the middle of the second story floor 3. After a part of the conditioned air is sent into a subduct 9 provided in communication with both the sides of a main duct 8, it is supplied from air supply openings 17 and 18 formed in the laminated woods 16 and 13, 15 on both the upper and lower parts of the subduct 9 into the rooms on the first and second stories. The upper and lower laminated woods 16 and 13, 15 are attached to both the upper and lower end faces of floor joists 5 and 6 forming a floor framework 4 of the second story floor 3 and the spaces thus defined are used as the main duct 8 and the subduct 9.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a duct system, and more particularly to a duct system suitable for use in prefabricated houses using the frame wall construction method (two-by-four construction method).

0002

[Prior Art] Conventionally, when constructing walls and floors, various housing construction methods have been adopted depending on the structure of the house. To explain the construction method, first, wood with a cross section of 2 x 4 inches or wood with a cross section length that is an integral multiple of 4 inches with the 2 inches intact is used.
A plurality of the timbers (floor joists) are arranged in parallel at predetermined intervals on the upper part of the first floor wall that has already been constructed at the construction site. Next, in the space sandwiched by the floor joists,
A rectangular short rod-shaped anti-rolling material is placed perpendicularly to the floor joist material so that its upper end surface is aligned with the upper end surface of the floor joist material,
Arranged at predetermined intervals. Further, plywood is attached to the upper end surfaces of the floor joists and the anti-rolling material to construct a second floor.

[0003] By the way, when installing an air conditioner having functions such as heating, cooling, and ventilation in such a two-story house, it is necessary to install ducts to feed air into each room.

Conventionally, hose-type or pipe-type ducts have been mainly used as such duct devices, and are installed under the floor joists of the second floor, with each end open toward each room. It was arranged.

[0005]

[Problems to be Solved by the Invention] However, in the above-mentioned duct system, since the duct is passed under the floor joists, the ceiling of the first floor becomes larger and the living space becomes smaller. There was a problem that it was not possible to make effective use of. Therefore, it was not suitable for small-scale buildings such as single-family homes.

[0006] Furthermore, since the ducts are installed separately from the installation of the second floor floor, the installation work is extremely time-consuming, and it is necessary to prepare a large number of ducts leading to each room, or to There was also the problem that the cost of ducts and duct installation was large, leading to high costs, such as preparing branch-type ducts that lead to and branch from.

[0007] The present invention has been made in view of the above-mentioned circumstances, and it is possible to arrange a duct without increasing the size of the ceiling part, and also to keep down the labor and cost required for the installation of the duct. The purpose is to provide a duct device that allows for

[0008]

[Means for Solving the Problems] The present invention provides at least two floor joists arranged in parallel at a predetermined interval at the upper end of a wall of a building, and the upper end surface of the floor joists and The solution is that by pasting an upper plywood and a lower plywood on the lower end surface, a duct is formed in a space surrounded by the upper plywood, the lower plywood, and the floor joist material.

[0009]

[Function] According to the duct device of the present invention, a floor is formed by attaching upper and lower plywood to the upper and lower end surfaces of floor joists, respectively, and at the same time,
A duct serving as an air flow path is formed in a space surrounded by these floor joists, upper plywood, and lower plywood. Therefore, extra space required for duct arrangement is not required, and duct arrangement construction can be simplified.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail by way of examples and with reference to the drawings.

FIGS. 1 and 2 show an embodiment of the duct apparatus of the present invention, and show an example applied to a building constructed by the frame wall construction method (two-by-four construction method).

Reference numeral 1 in FIG. 1 indicates a building such as a residence. The building 1 is a two-story building with at least one room on each of the first and second floors. It is separated by a second floor 3.

[0013] The second floor 3 generally has a floor frame 4 provided on the upper part of the first floor wall 2 as a skeleton.

[0014] In this embodiment, the floor frame 4 has two first floor frames arranged in parallel at a predetermined interval, approximately at the center of the second floor 3, so as to traverse the building 1. Floor joist material 5,5
On both sides of the first floor joists 5, 5, a large number of them were arranged in parallel at a predetermined interval so as to be perpendicular to the first floor joists 5, 5. The second floor joists 6, 6... and the end joists 7 are joined perpendicularly to the ends of these two types of floor joists 5..., 6, and surround the outer periphery of the second floor 3. , 7, and so on. Then, the joints between the ends of the second floor joists 6, 6... and the side surfaces of the first floor joists 5, and the first and second floor joists 5
..., 6... and the inner surface of the end joist material 7 are firmly joined by adhesive, nailing, etc., respectively.

The first and second floor joists 5 and 6 and the end joists 7 are each made of wood having a cross section of 2×4 inches.

In this way, the two first floor joists 5
, 5 is used as a main duct 8, which will be described later.
The space sandwiched between two predetermined adjacent floor joists 6, 6, . In this embodiment, as shown in FIG. 1, one subduct 9, 9 is provided on each side of the main duct 8, and the position where the subducts 9, 9 and the main duct 8 come into contact is The first constituting the main duct 8
The floor joists 5, 5 are cut out so that they communicate with each other.

Furthermore, as shown in FIG. 2, between the two first floor joists 5, 5 constituting the main duct 8,
A heat insulating material 10 such as styrofoam is fitted and fixed. This heat insulating material 10 is made of styrofoam or the like.
It has the same length, width, and height as the main duct 8, and is formed into an elongated rectangular cylindrical shape with a hollow interior and a substantially square-shaped cross section, and its side end surfaces in the width direction are respectively as described above. It is fitted closely into the space between the first floor joists 5, 5 so as to be aligned with the upper and lower end surfaces of the floor joists 5, 5.

[0018] Furthermore, each of the two constituting each of the subducts 9
Similarly, heat insulating materials 11 are fitted and fixed between each of the second floor joists 6, 6. Further, the heat insulating materials 11, 11 fitted into each of these sub-ducts 9, 9 and the heat insulating material 10 fitted into the main duct 8 are fitted into the main duct 8 so that their respective hollow parts communicate with each other. A portion of the side portion of the heat insulating material 10 is cut out.

In addition, rectangular shapes are formed at predetermined intervals between each of the second floor joists 6, 6, . . . Short rod-shaped anti-rolling materials 12, 12... are arranged,
They are joined by means such as nailing.

[0020] Also, on the lower surface of the floor frame 4 constructed in this manner and on the lower surface of the main duct 8, a lower plywood panel is installed so as to cover the heat insulating material 10 fitted in the main duct 8 from below. 13 is attached. The lower plywood 1
3 is a plurality of approximately rectangular plywood sheets that are joined together with their longitudinal ends butted against each other, and each plywood sheet is
Both sides in the width direction are connected to the two first floor joists 5, 5.
It is placed on the lower surface of the floor joist and bonded to the first floor joist materials 5, 5 through sealing materials 14, 14.

Similarly, a lower plywood 15 is attached to the lower surface of the subduct 9 so as to cover the heat insulating material 11 inside the subduct 9 from below.

Further, an upper plywood board 16 is attached to the upper surface of the floor frame 4 to cover the floor frame 4 from above and form a second floor. The upper plywood 16 is made by pasting together a plurality of rectangular plywood sheets, and the periphery of each plywood is formed by the floor joists 5..., 6..., and the end joists 7.
, 7... or the anti-rolling materials 12, 12... etc. are designed so that they are joined to the adjacent plywood on the upper surface.

Further, one of the subducts 9 has a lower plywood 15 cut out, and the other subduct 9 has a part cut out of its upper plywood 16, so that a portion of the upper plywood 16 is cut out from the subducts 9 and 9, respectively. Air blowing holes 17 and 18 are provided that lead to a room on the first floor or a room on the second floor of the building 1.

Furthermore, in this embodiment, an air conditioner 19 is installed outside the building 1 and is connected to one end of the main duct 8.

The duct device of this embodiment thus constructed operates as described below.

That is, the conditioned air that has been subjected to desired air conditioning such as heating, cooling, and ventilation by the air conditioner 19 is
It is sent into the main duct 8 running in the center of the second floor 3 of the building 1. The conditioned air flows within this second floor 3 while partially flowing into subducts 9, 9 provided on both sides of the main duct 8 in communication. The conditioned air flowing into the subducts 9, 9 passes through the lower plywood 15 of the subducts 9, 9.
Or air blow holes 17, 1 provided in the upper plywood 16
8, the air is blown out to a room on the first or second floor to adjust the room to a predetermined harmonious state.

According to the duct apparatus of this embodiment constructed in this manner, as described above, the floor joists 5..., 6... forming the floor frame 4 of the second floor 3, and the floor joists 5... , 6... Since the space surrounded by the upper plywood 16 and the lower plywood 13, 15 attached to the upper and lower end surfaces, respectively, is used as the main duct 8 or the sub-ducts 9, 9, these ducts are There is no need to secure additional space for installation. Therefore, as before,
It is possible to effectively utilize the living space of the building 1 without unnecessarily enlarging the ceiling of the first floor.

Furthermore, as mentioned above, the structure of this duct device is a very simple structure that utilizes a part of the second floor 3, and the main duct 8 is installed at the same time as the second floor 3 is laid.
and sub-ducts 9, 9 can be formed, and the work of newly arranging ducts on site can be omitted. Therefore, on-site construction can be simplified and labor-saving, and installation construction costs can be kept low.

Furthermore, since the space surrounded by the floor joists 5..., 6..., the upper plywood 16, and the lower plywood 13, 15 is used as a duct, a separate hose or pipe for the duct is required. There is no need to prepare one, and costs can be significantly reduced.

It goes without saying that the present invention is not limited to the above-mentioned embodiments, and the specific configurations such as the shapes, dimensions, and materials of each component can be changed as appropriate in practice.

For example, in the embodiment described above, there is a main duct 8 provided vertically across the center of the second floor 3, and two subducts 9 provided on both sides of the main duct 8 perpendicularly thereto. Although an example is shown in which the main duct 8 and the subducts 9 and 9 are installed in other locations, the locations and numbers of the main duct 8 and subducts 9, 9 may, of course, be changed as appropriate according to the floor plan of the building 1, design requirements, etc. It's okay to be. Therefore, the number of floor joists 5..., 6..., how to arrange them, etc. may be appropriately determined in accordance with this.

[0032] Also, upper plywood 1 is pasted on the upper and lower end surfaces of the main duct 8 and sub-ducts 9, 9.
6. For the lower plywood boards 13 and 15, in addition to the method of joining a plurality of plywood boards together as in the above embodiment, a method of arranging long plywood boards seamlessly may be used.

Furthermore, in the above embodiment, heat insulating materials 10, 11, 11 are provided inside the main duct 8 and sub ducts 9, 9, respectively, and extend continuously in the length direction of the main duct 8 and sub ducts 9, 9. Although an example of fitting is shown, anti-rolling materials are fitted and fixed at predetermined intervals inside the main duct 8 and sub-ducts 9, 9.
A heat insulating material may be intermittently fitted into the space partitioned by these anti-rolling materials. In this case, the anti-rolling material needs to be not just a short rectangular rod, but a rectangular receiving framework to ensure an air flow path.

In the above embodiment, a duct was provided between the floor joists 5, 6, which form the second floor floor 3. Of course, it is also possible to provide ducts in the same way on the floors above the third floor.

[0035]

As explained above, according to the duct device of the present invention, since the space between the floor joists constituting the floor is used as a duct, it can be used in addition to the panel construction method. It can also be suitably applied to prefabricated houses using the two-by-four construction method. In addition, the duct can be formed at the same time as the floor is laid, simplifying on-site construction. Further, since extra space required for duct placement is not required, it is possible to avoid increasing the size of the ceiling portion and to make effective use of space within the building. Further, since there is no need to prepare a new duct, the cost for the duct and the arrangement of the duct can be reduced.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional perspective view of main parts showing a state in which the duct device of the present invention is applied to a building constructed using the two-by-four construction method.

FIG. 2 is a sectional view showing a cross section of the main duct in the duct device.

[Explanation of symbols]

1 Building 5 First floor joist material (floor joist material) 6 Second floor joist material (floor joist material) 8 Main duct (duct) 9 Subduct (duct) 13 Lower plywood 15 Lower plywood 16 Upper plywood

Claims (1)

[Claims] Claim 1: At the upper end of the wall of the building, at least two
The upper plywood, lower plywood and A duct device characterized in that a duct is formed in a space surrounded by the floor joists.