JP-2026075507-A - Flooring for indoor exhaust

Abstract

[Problem] To provide an indoor exhaust flooring material that improves the manageability and exhaust performance of a system that exhausts air into the underfloor space in a room without an underfloor space. [Solution] The indoor exhaust floor material 1 is characterized by comprising: a first main plate 2f on the indoor side of a plurality of main plates 2 forming a closed space Q, through which ventilation holes 3 are drilled; a second main plate 2b on the outdoor side facing the first main plate 2f and spaced downward apart from it; a rectifier section 4 provided on the inner surface of the second main plate 2b and having a first inclined surface that widens in diameter as it goes downward; an exhaust pipe 5 connecting the closed space Q and the outside, positioned above the rectifier section 4, with its open end on the closed space Q side oriented downward toward the rectifier section 4; and a first hood section 6 extending downward from the open end 51 of the exhaust pipe 5, having a second inclined surface that widens in diameter as it goes downward, and spaced apart from the rectifier section 4. [Selection Diagram] Figure 2

Inventors

• 中野 恭男

Assignees

• 中野 恭男

Dates

Publication Date

20260508

Application Date

20241022

Claims (1)

1. An indoor exhaust flooring material for exhausting indoor air to the outside, Among the multiple main plates that are spaced apart from each other and facing each other to form a closed space, the first main plate on the interior side, in which ventilation holes are drilled, Of the plurality of main plates, the second main plate on the outdoor side, which is spaced downwards and facing the first main plate, A flow straightening section is provided on the inner surface of the second main plate and has a first inclined surface that widens in diameter as it goes downwards, An exhaust pipe connecting the enclosed space and the outside, positioned above the rectifier, with its open end on the enclosed space side oriented downward toward the rectifier, The exhaust pipe has a second inclined surface that extends downward from the open end and widens in diameter as it extends downward, and a first hood portion that is spaced apart from the rectifying portion, An indoor exhaust flooring material characterized by having the following features.

Description

This invention relates to flooring material for indoor exhaust systems installed within buildings. Currently, technologies are being researched to exhaust air from buildings by utilizing spaces such as under the floor and behind the walls. In recent years, there are many highly airtight residences and facilities, such as reinforced concrete and steel frame systems, commercial facilities, and high-rise condominiums. These are buildings where many people gather, and there is a growing awareness of the need for ventilation within buildings, such as the problem of infectious disease spread. On the other hand, almost all ventilation methods rely on exhaust fans installed on the ceiling or at high places. Tiny viruses and bacteria that become the focal points of infectious diseases fall to the floor below after being dispersed, forming a dense layer of lesions that accumulates at the feet, and are repeatedly dispersed by people walking. For these reasons, even in the sterile environment of operating rooms in medical facilities, which are the most stringent in terms of infection prevention, the CDC (Centers for Disease Control and Prevention) guidelines for preventing surgical site infections (1999) stipulate that ventilation measures should include "supplying air from the ceiling and exhausting air from near the floor." Furthermore, for similar reasons, not only is infection by viruses and bacteria a concern, but so-called dust, such as house dust generated in human living spaces, also accumulates downwards after being dispersed, contributing to illnesses such as asthma. Moreover, conventional underfloor ventilation holes in buildings were intended for exhausting the underfloor space, not the interior space. Given this situation, the need for ventilation through means other than ceilings, such as floor or wall exhaust, is strongly desired as part of creating a healthier environment. Furthermore, while the global trend towards segregated smoking areas is progressing, it can be said that smokers themselves are exposed to the risk of exposure to secondhand smoke and other forms of secondhand smoke in designated smoking rooms. Meanwhile, as a measure against the global risk of infectious diseases such as COVID-19, the construction of properly managed ventilation systems in places where people gather is recommended. Smoking rooms, in particular, are enclosed spaces where multiple people congregate, thus posing a significant risk of infection in addition to the risks associated with smoking. Therefore, indoor ventilation methods that address both of these risks are required in smoking rooms and similar indoor spaces. Patent Document 1 discloses a floor material for indoor exhaust with a closed space formed inside. Patent No. 7508149 Figure 1 is a schematic diagram showing an example of an indoor exhaust floor material in this embodiment.Figure 2 is a schematic cross-sectional view showing an example of an indoor exhaust floor material in this embodiment.Figure 3 is a schematic enlarged view showing an example of an indoor exhaust floor material in this embodiment.Figure 4 is a top perspective view corresponding to Figure 3.Figures 5(a) and 5(b) are schematic enlarged views showing modified examples of the flow straightening section of the indoor exhaust floor material in this embodiment.Figure 6 is a schematic plan view showing an example of an indoor exhaust floor material in this embodiment, with the first main plate omitted.Figure 7 is a schematic enlarged view showing a modified example of the exhaust pipe among the floor materials for indoor exhaust in this embodiment.Figure 8 is a schematic diagram showing an example of an indoor exhaust floor structure using the indoor exhaust floor material in this embodiment.Figure 9 is a schematic diagram showing a modified example of an indoor exhaust floor structure using the indoor exhaust floor material in this embodiment.Figure 10 is a schematic diagram showing an example of simulation results for the indoor exhaust flooring material of Example 1 of the present invention.Figure 11 is a schematic diagram showing an example of simulation results for the indoor exhaust flooring material of Example 2 of the present invention.Figure 12 is a schematic diagram showing an example of simulation results for the indoor exhaust flooring material of Comparative Example 1.Figure 13 is a schematic diagram showing an example of simulation results for the indoor exhaust flooring material of Comparative Example 2.Figure 14 is a schematic diagram showing an example of simulation results for the indoor exhaust flooring material of Comparative Example 3. The following describes in detail an example of an indoor exhaust floor material 1 as an embodiment of the present invention, with reference to the drawings. In each figure, the first direction is designated as X, the second direction as Y is one direction perpendicular to the first direction X, and the downward direction as Z is the directi