JP2544574B2 - Underfloor air introduction device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor air introduction device which can prevent inflow of underfloor cold air into a room at low cost by using a shutter plate which automatically opens and closes.

[0002]

2. Description of the Related Art In recent years, in order to improve the habitability and comfort of a house, an underfloor air introduction device for cooling and ventilating while energy saving is introduced by introducing underfloor air that is cooler in the summer compared to the outside air into the room. It is becoming popular.

Conventionally, such an underfloor air introduction device has been used.
To prevent cold air under the floor from entering the room in winter,
The blower opening was provided with a manual or electric shutter for opening and closing the blower opening.

[0004]

However, while the manual shutter is cumbersome to operate and sometimes forgotten, the electric shutter is expensive and inferior in economic efficiency.

According to the present invention, a shutter plate, which is placed on a cushion material, closes a blower port and is repelled by underfloor air blown from below, is pivotally attached to a shaft body installed at a blower port of a blower device. Based on the above, it is an object of the invention to provide an underfloor air introduction device that can automatically open and close a blower opening at low cost and prevent cold underfloor air from entering the room in winter.

[0006]

In order to achieve the above object, the underfloor air introducing device of the present invention is provided with a blower device having a blower for blowing underfloor air, which is arranged in an underfloor space, and is attached to a floor of a house. It was installed at the air outlet of the blower.
A horizontal shaft, prevents dropping of foreign matter to close the air blowing port by being placed in a substantially horizontal state on the cushion member and the underfloor air
Two sheets that prevent the natural flow of air and are repelled in a V shape by the underfloor air blown from below by the blower.
The shutter plate is attached.

[0007]

[Operation] By placing the cushion member on the shaft body installed in the blower port of the blower device, the blower port is closed and blown.
The shutter plate is pivotally attached to the underfloor air blown from below by the machine . In this way, the shutter plate automatically opens the blower opening by blowing out the underfloor air accompanying the operation of the blower of the blower tool, and closes the blower opening by stopping it, so there is no troublesome operation and it is low cost in winter. together capable of preventing intrusion into the room of the floor cold, such as indoor warm air can also prevents be discharged as blow under the floor space, the natural flow of underfloor air inhibitory
In addition to being able to stop, blow foreign objects to the blower etc. with the blower opening closed.
It can prevent falling and reduce the risk of failure of the blower.

[0008] Also, the shutter plate on substantially the cushion material
Since it is placed in a horizontal state, it can reduce the impact noise when closing the blower opening, and it can be placed in a substantially horizontal and stable state.
Can be closed. Further, the shaft body is flipped up in a V shape.
Since two shutter plates are pivotally attached, each shutter is
The height of the board when it is flipped up can be reduced, and the blower equipment can be made smaller.
it can.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the figure, in the underfloor air introduction device, a blower tool 3 having a blower 2 arranged in an underfloor space S for blowing underfloor air is attached to a floor F of a house and installed on a blower port 5 of the blower tool 3. The cushion member 4 is attached to the shaft body 44
The shutter plate 4 which is placed on 6 closes the blower opening 5 and is repelled by the underfloor air blown from below.
5 is pivoted.

In this embodiment, the blower unit 3 is attached to the floor cover 4 that covers the opening A provided in the floor F so that the floor F can be attached to the floor cover 4 through the floor cover 4. Install it.

A cabinet C having a detachable bottom plate D passing over the floor cover 4 and capable of blowing underfloor air from the lid 9 is arranged on the floor F.

As shown in FIG. 1, the floor F comprises a base plate 13 made of, for example, a gypsum board on the upper surface of a frame in which frame members 11 made of channel steel are joined in a rectangular shape with their groove portions facing each other.
An integrally transportable floor panel 12 in which a wooden floor plate 14 and a wooden floor plate 14 are affixed to each other is horizontally projected onto a support bracket 15 having an L-shaped cross section, which is bolted to an indoor surface of a rising portion B1 protruding from the surface of a cloth foundation B. The lower surface of one end is placed on the piece 15A and the other end is supported by another cloth base parallel to the cloth base B by using an appropriate receiving metal fitting (both not shown), and under the floor plate 13 under the floor. It is formed by forming a space S and horizontally extending it between the cloth foundation B and another cloth foundation.

A plurality of joists 16 ... Receiving the lower surface of the base plate 13 are installed in parallel on the frame of the floor panel 12, and the base plate 13 and the floor plate 14 of the floor panel 12 forming the floor F are formed. Is provided with a rectangular opening A.
Further, the cloth foundation B is a wall panel 1 which forms an outer wall of the house through a base metal fitting 17 having an L-shaped cross section at the upper end of the rising portion B1.
Support the lower end of 9.

A mounting frame 20 for mounting and supporting the floor cover 4 covering the opening A is attached to the periphery of the opening A. The mounting frame 20 is formed of four support fittings 20a, and the support fitting 20a is a horizontal upper piece 2 which is screwed onto the floor plate 14 as shown in FIGS.
0A and the hanging piece 2 that hangs from the edge facing the opening A
0B and a horizontal receiving piece 20C extending in a small length from the lower end of the hanging piece 20B toward the opening A, and made of a long aluminum extruded material. It is to be noted that vertical and small-length projections 21, 21 are provided so as to face each other on the upper and lower surfaces of the hanging piece 20B facing the floor plate 14 and the base plate 13.

The supporting metal fittings 20a extend over the entire length of each side facing the opening A of the rectangle, are screwed to the floor plate 14, and are notched at the ends thereof so that they are abutted to each other and are orthogonal to each other. The two support fittings 20a, 20a are connected to each other by an L-shaped connecting fitting 22 in which one piece is inserted between the protrusions 21, 21 and the hanging piece 20B and screwed together, whereby the peripheral edge of the opening A is formed. A rectangular frame-shaped mounting frame 20 for applying makeup is formed.

The floor cover 4 includes four main body frames 23 mounted on the respective support fittings 20a of the mounting frame 20 and a flat rectangular laminate 24 covering the opening A. Body frame 2
As shown in FIGS. 5 and 6, 3 is a horizontal mounting piece 23A which is mounted on the upper piece 20A of the support fitting 20a and extends toward the opening A, and a lower surface and opening of the mounting piece 23A. A standing piece 23B that hangs along the hanging piece 20B at a position reserved from the edge facing A, and a horizontal piece that extends from the lower end of the standing piece 23B toward the opening A and is placed on the receiving piece 20C. Which is a long piece of aluminum extruded material having a lower piece 23C, and which has vertical and small length projections 25, 25 in a direction facing the opening A of the standing piece 23B and above and below. It is protruding.

The two body frames 23, 23 which are orthogonal to each other abut against each other by notching the ends thereof obliquely, and one piece is inserted between the protrusions 25, 25 and the standing piece 23B. The four body frames 23 ... Are screwed to each other by using an L-shaped connecting fitting 26 that is screwed to form a rectangular frame shape.

The laminated body 24 has a support plate 27 made of a rectangular metal plate having a lower peripheral edge placed on the lower piece 23C of the main body frame 23, and the butyl tape 2 on the upper surface of the support plate 27.
9 and a rectangular plywood 30 placed via 9
A thin surface material 31 made of, for example, a vinyl chloride resin, which is placed on the upper surface and whose peripheral upper surface is in contact with the lower surface of the placing piece 23A, is formed. This laminated body 24 has 4
The four body frames 23, which are arranged on the sides and screwed to each other, are integrally coupled to each other to form the floor cover 4, and the floor cover 4 connects the body frames 23 to the mounting frame. By mounting it on 20, the rectangular opening A can be covered.

The laminate 24 can be removed by taking out the floor cover 4 and removing one body frame 23 as shown in FIG. Therefore, the surface material 31 can be easily replaced according to the desired flooring or the upper surface processing of the floor plate 14. The support plate 27 ensures a sufficient strength of the floor cover 4.

A circular hole 6 is formed in the laminate 24 of the floor cover 4. At the periphery of the hole portion 6, a parting material 32 having an L-shaped cross section is fixed over the entire circumference by using, for example, a double-sided tape, and the support plate 27 is elongated toward the hole portion 6 beyond the parting material 32. It has an extension 27A that extends up.

Further, the floor cover 4 is provided with a blower unit 3 having a blower 2 arranged in the underfloor space S for blowing underfloor air.

As shown in FIGS. 3, 5 and 6, the blower unit 3 is a horizontal and oblong rectangular mounting piece which is bolted to the lower surface of the support plate 27 of the laminated body 24 through an appropriate cushion material 33. 34, a trapezoidal side piece 35 that hangs from the end edge of the attachment piece 34 extending in the longitudinal direction, and a vertically long rectangular projection piece 36 that protrudes by bending at a right angle from the vertical edge of the side piece 35. A pair of parallel side members 37, 3
7. A vertical and rectangular mounting plate 39 which is bridged between the projecting pieces 36, 36 by being screwed to the projecting pieces 36, 36 of the side members 37, 37 and the mounting plate 39. The blower 2 has a suction port 40 for underfloor air, which is connected to the suction plate 40 and is fixed to a mounting plate 39 and arranged between the side members 37. The suction port 40 is covered with an insect-proof net 40A.

Further, the underfloor air outlet provided on the upper surface of the blower 2 of the blower unit 3 has an air introduction portion 4 in the hole portion 6.
The air inlet 5 of the air blower device 3 is provided inside the air introduction portion 41 while communicating with each other.

The air introducing portion 41 is fixed to the horizontal upper surface of the blower 2 and has a lower plate 42 provided with a hanging piece 42A that hangs down along one vertical side surface of the blower 2, and the upper surface of the lower plate 42. And a rising plate 43 in a cylindrical shape that stands up from the blower so as to surround the blower port 5, and the upper end of the rising plate 43 is an extension of the support plate 27 as shown in FIGS. 3, 4, and 7. Since the hole 6 is located near the periphery of the portion 27A,
It communicates with the blower opening 5 of the blower device 3.

As shown in FIGS. 3 and 4, a shaft body 44 is horizontally installed below the inside of the rising plate 43 forming the blower port 5, and the shaft body 44 has a semicircular shape and a pair. The shutter plates 45, 45 are pivotally attached. Shutter plate 45
Is lifted up by the underfloor air blown from below by the operation of the blower 2 into a V-shape as shown by the alternate long and short dash line in FIG. Is placed in a substantially horizontal state on the stand to shield the inside of the riser plate 43 and prevent foreign matter such as small
It prevents the blower 2 from falling and also prevents cold air from entering from under the floor especially in winter. Note shutter plate 45, have a weight which is not splashed a wind of about blown air under the floor in winter, underfloor air when the fan 2 is not operating
Prevent the natural flow of.

In this way, the shutter plates 45, 4 are automatically
The blower opening 5 can be opened and closed by 5 to reduce the cost as compared with the electric type, and the cushion material 46 can reduce the impact sound when the shutter plates 45, 45 close the blower opening 5. Two to further the shutter plate 45,4
5 is used, the stroke when the shutter plates 45, 45 are flipped up can be reduced, and the rising plate 4
The vertical length of 3 can be shortened. Therefore, it is also useful for downsizing the blower device 3.

Since the blower unit 3 is attached to the lower surface of the floor cover 4, the plane size of the opening A covered by the floor cover 4 becomes larger than that of the blower unit 3 as shown in FIG. By appropriately setting the plane dimensions of the opening A,
A blower tool 3 having a large blower 2 can be installed.

Further, the floor cover 4 to which the blower tool 3 is attached is
Since it is arranged by placing it on the mounting frame 20,
All of the installation work can be done on the floor, there is no need to go under the floor, and the construction can be facilitated and labor saving can be achieved.

A lid 9 having an outlet 7 is arranged in the hole 6. The lid 9 is provided with, for example, three outlets 7 on a circular base body 9A whose upper surface is convex and has an arc shape with a large radius of curvature. Further, a mounting surface 47 to be mounted on the extension portion 27A of the support plate 27 is formed on the lower surface of the peripheral edge of the base body 9A, and a falling portion 49 that hangs down along the inner peripheral surface of the upper end of the rising plate 43 is lowered. Further, a spring piece 50 is attached to the outer peripheral surface of the falling portion 49 over the entire circumference thereof.

Two recesses 51, 51 for holding the base body 9A are provided on the upper part of the base body 9A, and the outlets 7 ... Circularly guide the upward direction of the underfloor air at a small angle to the floor surface. Arc-shaped guide plates 52, 52 are arranged.

The guide plate 52 has concave grooves 52A and 52A for fitting the side walls 53 of the base body 9A extending between the adjacent outlets 7 and 7 at the upper end thereof, and as shown in FIG. Fixing pieces 54, 54 which are respectively tacked to the lower surface of the base body 9A located below and the inner surface of the lowering portion 49.
The guide plate 5 is formed by fitting a recessed portion formed at the lower end of the guide plate 52 into a support piece 55 that is slanted across the guide plate 5.
2 is supported.

The lid 9 as described above faces its outer peripheral surface to the parting member 32 fixed to the hole 6 of the floor lid 4,
Moreover, by mounting the mounting surface 47 on the extension 27A of the support plate 27, the mounting surface 47 is covered so as to cover the hole 6 and is rotatable.

The lid 9 is, for example, 30 from the upper surface of the floor lid 4.
Since it has a hemispherical projection with a small projection amount of about mm and blows out the underfloor air at a small angle with the floor surface, it is possible to directly blow the air to a person at a distance. The step that rises vertically from the floor can be eliminated, stumbling can be prevented when walking, and safety can be improved. Note that the lid 9 always protrudes in a hemispherical shape from the floor surface not only during use, but it is possible for a resident to recognize the protrusion of the lid 9 and the stumbling prevention effect can be further enhanced.

Further, the spring piece 50 has the air introduction portion 41.
The lid 9 is pressed against the inner surface of the upper end of the upright plate 43 to prevent the lid 9 from fluctuating, and the lid 9 is rotated by using the recesses 51, 51 as a clue so that the blowing direction of the underfloor air is 360 °. It can be adjusted freely.

The floor body F is provided with a cabinet C capable of blowing underfloor air from the lid body 9. In this example, the cabinet C is a vanity K having a drawer E, as shown in FIGS. 1, 9 and 10, and a vertical back plate 6
It has side plates 61, 61 projecting at a right angle from 0 and forming both side walls of the drawer part E, and the lowermost drawer 62 arranged in the drawer part E is formed by the dowels 63 provided on the side plates 61, 61. It is supported by a horizontal bottom plate D that is detachably arranged.

The opening A is provided in the floor F below the bottom plate D and between the side plates 61, 61.
The floor cover 4 to which the blower unit 3 is attached is placed on the attachment frame 20 attached to the peripheral edge of the bottom plate D, and an opening 64 is provided between the front end of the bottom plate D and the top surface of the floor F. To be
Therefore, the bottom plate D passes over the floor cover 4 and the lid 9
The underfloor air from the room goes through the opening 64 and the vanity K
It can blow out from the bottom.

Since the floor cover 4 is installed below the bottom plate D of the vanity K in this way, the cover 9 can be hidden and the appearance can be enhanced, and by removing the bottom plate D, the cover 9 can be removed.
Can be rotated for convenience, and the blowing direction can be easily changed.

11 and 12 show another example of the cabinet C. In this example, the cabinet C is a storage furniture L having a door 65, and is provided with side plates 69, 69 which project from a vertical back plate 66 at a right angle and form both side walls of a storage part 67 which is opened and closed by the door 65. Together with the storage section 67
The bottom plate D is removable by dowels provided on the side plates 69, 69.

The floor cover 4 is arranged in the opening A provided in the floor F between the side plates 69, 69 below the bottom plate D, and the front end of the bottom plate D and the upper surface of the floor F are connected to each other. An opening 70 that allows the underfloor air from the lid 9 to pass therethrough is formed between the openings.

Therefore, by removing the bottom plate D,
The blower unit 3 can be taken out to the storage unit 67 together with the floor cover 4 without moving the storage furniture L, which facilitates maintenance.

As a cabinet C, a vanity K,
In addition to the storage furniture L, various things such as a kitchen stand and furniture with a counter can be adopted.

13 and 14 show another example of the lid 9.
In this example, the lid 9 is a circular base body 9 whose upper surface is horizontal.
Several outlets 7, ..., 6 facing diagonally upward are provided in A symmetrically with respect to the center line of the base body 9A. Also base 9A
In addition to providing the concave portions 51, 51 for gripping on the upper surface,
On the lower surface of the peripheral edge of the base body 9A placed on the extension portion 27A, a stand-down portion 49 along the circumferential surface of the stand-up plate 43 is raised.

The outlets 7 ... Can be formed in an arc shape only on one side of the lid 9 as shown in FIGS. 15 and 16, and as shown in FIGS. The upper surface of
The circular and concentric outlets 7, ... Opening on the lower surface can be formed by connecting the side walls 57 between the adjacent outlets 7, 7 with a rod-shaped body 59.

[0044]

As described above, the underfloor air introduction device of the present invention is substantially horizontal on the cushion member on the horizontal shaft body installed at the blower port of the blower tool having the blower arranged in the underfloor space.
By placing it in this state, the ventilation port is closed and the ventilation is performed.
Because pivotally connected two shutter plates being splashed into a V-by underfloor air blown from below by the machine, can open and close the low cost and automatically blowing port, moreover shutter plate
Blows foreign matter such as small items in a stable state that is almost horizontal
The natural flow of underfloor air can be prevented as well as the fall of cold air under the floor into the room can be prevented during the winter.
You can prevent this.

Further, the cushion material can reduce the impact noise when the shutter plate closes the blower opening, and can also reduce the V-shape.
Since two shutter plates that jump up are used,
The shutter plate height is the height of one shutter plate.
The size of the blower can be made smaller compared to when using
Can also be useful for

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a cross-sectional view showing a main part thereof.

FIG. 4 is a cross-sectional view showing a main part thereof.

FIG. 5 is an exploded perspective view thereof.

FIG. 6 is a partial cross-sectional view showing the floor cover attachment structure in an enlarged manner.

FIG. 7 is a partial cross-sectional view showing an enlarged attachment structure of a lid body.

FIG. 8 is an exploded perspective view showing a structure of a floor cover.

FIG. 9 is a front view illustrating a cabinet.

FIG. 10 is a partial perspective view showing the main part thereof.

FIG. 11 is a partial front view showing another example of the cabinet.

FIG. 12 is a partial perspective view showing a main part thereof.

FIG. 13 is a plan view showing another example of the lid body.

FIG. 14 is a sectional view thereof.

FIG. 15 is a plan view showing another example of the lid body.

FIG. 16 is a sectional view thereof.

FIG. 17 is a plan view showing another example of the lid body.

FIG. 18 is a sectional view thereof.

[Explanation of symbols]

 2 Blower 3 Blower device 5 Blower port 44 Shaft body 45 Shutter plate 46 Cushion material F Floor body S Underfloor space

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Claims (1)

(57) [Claims] 1. A blower device having a blower arranged in an underfloor space for blowing underfloor air is attached to a floor of a house, and
By placing the cushion member in a substantially horizontal state on a horizontal shaft that is installed at the blower port of the blower device, the blower port is closed to prevent foreign matter from falling and to prevent the natural flow of the underfloor air.
An underfloor air introduction device that pivotally attaches two shutter plates that are stopped and are flipped up in a V shape by the underfloor air blown from below by the blower .