JPH074420Y2 - Underfloor ventilation - Google Patents

Description

[Detailed description of the device] "Industrial application field" The present invention relates to an underfloor ventilation port installed in the foundation of a building.

"Conventional technology" Underfloor ventilation openings are required to be installed on the concrete foundation under the foundation at intervals of 5 m or less according to the Building Standards Act.
The effective ventilation area and the function of avoiding mice are specified.

The conventional products were the ones in which the above items were simply installed.

"Problems to be solved by the device" Once the conventional product is installed once, effective ventilation is not performed because the effective area of ventilation is constant. Even if it is possible to prevent the invasion of mice, small insects such as cockroaches Was coming and going, and was unsanitary.

Also, because the ventilation area was constant, outside air became unnecessary under the floor during extremely cold weather, and the warm heat in the room was taken under the floor to reduce the heating effect and consume energy unnecessarily.

Also, when it is hot, even if a large amount of cold air under the floor is taken in and it is desired to put the cold air under the floor or inside the room, it was not possible because the ventilation port had a certain area.

In addition, since the use of coolers is increasing in recent years and the airtightness has improved to enhance its effect, if you do not use the cooler in hot weather, it becomes easy for the inside of the house to become hot and humid immediately, especially if you stop the cooler. When the house is away, the doors are tightened tightly, which accelerates the temperature and humidity inside the room, and the air also stagnates, leaving an unpleasant odor.

Under the floor of the building, temperature and humidity are not constant due to location, geology, surrounding environment, structure and use of the building, climate, meteorological conditions, and other natural phenomena. Is very serious.

Therefore, for ventilation under the floor, it is desired to increase or decrease the number of ventilation openings, that is, to open or close the ventilation openings in accordance with various things as described above.

However, the conventional product did not have that function.

Insufficient ventilation under the floor further causes abnormalities of mold, mites and termites,
It also accelerates the damage of termite control chemicals, and the health hazards and building corrosion caused by these.

As a result of the above, it is necessary not to raise the indoor temperature and humidity too much even when going out with a tight door.

Also, even if you want to open the window on a hot night, you cannot open the window due to various anxieties, so even if you tighten the door tightly, you want to get enough cold air inside. is there.

To make this possible, a ventilation port should be provided on the floor to take in cool air from under the floor.

In this case, the ventilation opening on the floor is adjustable and can be opened and closed with an insect screen.
Moreover, it must be one that does not hinder the living.

However, if the underfloor vents around the building do not have the ability to control ventilation, the effect will be halved.

Therefore, at least the underfloor ventilation port required by this plan must have sufficient ventilation capacity and adjustment capacity.

-It is equipped with an insect screen to prevent even the smallest insects and can be attached and detached, but there are the following problems.

In order to make the opening and closing of the ventilation opening adjustable, it is better to open and close a door-like thing, but because of the relationship with the insect screen installed together, there is a ventilation control on the outside of the insect screen, that is, on the front side. Doors must be provided so that they can be opened and closed regardless of the insect screen.

If the door is opened and closed to the outside, the door will protrude outside the building when opened, which may cause a risk of hitting an infant playing in the vicinity, and the design is not good.

Since the effective area of ventilation will be halved if the door is pulled up, the larger the ventilation opening, the larger the opening in the basic concrete and the weaker the strength of the foundation.

In addition, the finer the mesh, the more easily dust and dirt adhere to the mesh, reducing the effective area of ventilation and reducing the ventilation capacity.
It needs to be easily removed for cleaning, and the fine mesh is extremely susceptible to deformation and damage, so it is recommended to use a mesh door to prevent it.

In order to meet the above wishes, it is better to attach a frame to the opening of the foundation and store a screen door or door in it, but in order to make it removable, it can be done from the outside of the building Must be done.

This proposal was made to solve the above problems.

"Means for Solving Problems" Four-sided frame consisting of left and right vertical frames 6 and a sill-shaped lower frame 4 and a duck-shaped upper frame 5 attached to the rear of them, and the sill-shaped lower frame 4 and duck-shaped upper frame. Mainly consists of a shield door 3 and a screen door 2 that can be stored between 5 doors.

The outer diameter in the horizontal direction between the vertical frames 6 is set to a dimension that can be accommodated inside the base opening 9a of the building in the horizontal direction, which is attached to the present invention.

The space between the sill-shaped lower frame 4 and the duck-shaped upper frame 5 is set so that the foundation opening 9a can be shielded from the rear side together with the housed shielding door 3 and screen door 2.

The sill-shaped lower frame 4 and the duck-shaped upper frame 5 are shield doors 3 that are fully opened.
The length should not fall off.

This proposal is configured as described above.

[Operation] The concrete foundation opening is horizontally long due to the structure of the building, and the main idea of attaching it is naturally horizontally long. As a result, even if this plan is larger than the foundation opening, the height of this plan is smaller than the lateral inner diameter of the foundation opening, so it is easy to make the plan horizontal and insert it from one of the longitudinal directions into the foundation opening. It is placed behind the foundation and attached to the foundation opening from the inside.

For fixing, the vertical frame 4 is attached to the side wall of the base opening. Attachment is optional, such as screwing, nailing, or gluing.

Both the screen door 2 and the shield door 3 can be slid sideways, but the screen door 2 is closed and the shield door 3 is arbitrarily opened and closed.

Ventilation is performed through the screen door 2.

When it is desired to maximize ventilation, the shield door 3 is fully opened, and when ventilation is to be reduced, it is arbitrarily closed.

In order to take out the screen door 2, the shield door 3 is fully opened, and the screen door 2 at the back can be easily taken out like a door from a sill / kamoi.

"Embodiment" FIG. 1 shows an example in which the screen door 2 and the shielding door 3 are formed into two sliding doors, and each of them is arranged as shown in FIG.
Even if it is composed of one sheet, it is arbitrary and does not change the gist of the present invention.

Each of the sill-shaped lower frame 4 and the kamoi-shaped upper frame 5 has a function of a sill / kamoi and has a function of accommodating the screen door 2 and the shielding door 3, respectively, and it is necessary that the fully opened shielding door 3 does not fall off.
The material and shape are arbitrary.

The vertical frame 6 is preferably in an angled shape for the sake of convenience that a part of the vertical frame 6 is a mounting end 6a to the inner wall of the base opening.

The net is preferably made of extra fine stainless steel.

The small frame 2b of the screen door 2 is preferably made of aluminum, but is not limited to this.

The shielding door 3 controls ventilation between the underfloor and the outside, and is preferably waterproof, fireproof, or noncorrosive, and the outer diameter in the lateral direction is slightly larger than the inner diameter between the vertical frames 6.

When the screen door 2 and the shielding door 3 are each composed of two sheets, as shown in FIG. 1, the vertical frame 6 is positioned at a position which is divided from the center of the upper duck frame 5 at the same interval.

That is, the dimension of the duck-up upper frame 5 protruding from the vertical frame 6 is divided into left and right parts.

In addition, when the shielding door 3 and the screen door 2 are each composed of one sheet,
As shown in the figure, one end of the duck-shaped upper frame 5 is not projected from one vertical frame 6 to the outside, but only the multi-ends are projected from the other vertical frame 6 to fix each frame.

The same applies to the threshold lower frame 4.

The above-mentioned portions of the duck-shaped upper frame 5 and the sill-shaped lower frame 4 that project laterally have a function of preventing the shield door 3 and the like from falling off.

The sill-shaped lower frame 4 and the duck-shaped upper frame 5 have no door stop.

In addition, it is advisable to appropriately attach mohairs or the like to both ends of the screen door 2 and the shielding door 3 to close the gaps between the four sides of the frame.

[Usage] As described above, the present invention is applied to the foundation opening 9a from behind, and the vertical frame 4 is attached to the inner wall of the foundation opening 9a with nails 12 and an adhesive agent as shown in FIG. It is convenient to embed the wooden bricks 15 in advance.

In addition to the above, as shown in FIG. 8, an angle member or the like parallel to this may be attached to the entire surface of the duck-shaped upper frame 5, and one end thereof may be attached to an upper base to reinforce it.

A waterproof sealing material 16 may be appropriately applied to the gap between the present invention and the foundation concrete 9 or the like.

The size and shape of the present proposal are arbitrary unless the gist is changed.

The material is the same as above.

"Effect" -Since the shielding door 3 can be arbitrarily opened and closed, the opening is narrowed to restrict the entry of cold air during the extremely cold season, and the warm air in the room is not let out through the underfloor.

-In addition, the high temperature in the room and the dirt of the air in the summer can be relieved by taking the outside air into the room under the floor through the ventilation hole provided on the floor in the room.

-By the above, it is useful for improving unsanitary conditions such as generation of mold and termites due to moisture from under the floor and chemical damage of termite control.

-Even after the foundation is placed on the foundation, the main idea can be attached from the outside of the building and can be freely attached and detached from the outside, so if the main idea is damaged, without dismantling the main idea,
Also, it can be removed without breaking basic concrete.

-By the above, it is easy to clean the screen door 2 which is easily soiled.

-Since the shielding door 3 can be opened and closed behind the basic concrete 9, the shielding door 3 does not go out of the building, and therefore, it does not hit an infant playing near the building.

This plan has the above effects.

[Brief description of drawings]

FIG. 1 is a partial cutaway perspective view of an example of the present invention. FIG. 2 is a front view of the screen door in FIG. FIG. 3 is a front view of the shielding door in FIG. FIG. 4 is a partially cutaway front view of an example showing the relationship between the basic opening and the present invention. FIG. 5 is a partially cutaway overall perspective view of another example of the present invention. FIG. 6 is a front view of the screen door in FIG. FIG. 7 is a front view of the shielding door in FIG. FIG. 8 is an enlarged vertical cross-sectional view of the mounting example of the present invention with some notches and some notations. FIG. 9 is a perspective view of an example of an auxiliary material. 1 is the whole plan. 2 is a screen door. 2a is a net. 2b is a small frame of screen door. 3 is a shielding door. 3a is a puller. 4 is a threshold lower frame.
4a is a groove on the upper surface of the sill-shaped lower frame. 5 is a duck-shaped upper frame. 5a is
Kamoi-shaped upper frame mask groove. 6 is a vertical frame. 6a is the mounting end. 7
Is a square frame. 8 is mohair. 9 is basic concrete. 9a is a foundation opening. 10 is the base. 11 is a nail hole. 12
Is a nail. 13 is a screw nut. 14 is a reinforcing material. 15 is a wooden brick. 16 is a sealing material.

Claims (1)

[Scope of utility model registration request] 1. A four-sided frame consisting of left and right vertical frames, a sill-shaped lower frame and a sill-shaped upper frame attached to the rear of the sill, and a shield which can be stored between the sill-shaped lower frame and the sill-shaped upper frame. Mainly consists of doors and screen doors. The outer diameter in the horizontal direction between the vertical frames is set to a size that can be accommodated inside the foundation opening of the building in which the present invention is mounted. The space between the sill-shaped lower frame and the duck-shaped upper frame is set to a size capable of shielding the foundation opening of the building from the inside together with the housed shielding door and screen door. The sill-shaped lower frame and the duck-shaped upper frame have such a length that the fully opened shielding door does not fall off. The underfloor ventilation port configured as described above.