JP6914096B2 - Underfloor ventilation structure - Google Patents

Description

The present invention relates to an underfloor ventilation structure.

In the underfloor ventilation structure of Patent Document 1, in a basic insulated house having an underfloor space provided with a heat insulating material and airtightly sealed from the outside, an air supply port that guides indoor air to the underfloor and an exhaust port that guides the underfloor air to the outside. The room air is forcibly circulated in the underfloor space by connecting a forced ventilation means to the exhaust port.

Japanese Unexamined Patent Publication No. 10-331277

However, in the above technique, the underfloor space can be seen through the air supply port facing the entrance, which spoils the appearance of the entrance.

An object of the present invention is to obtain an underfloor ventilation structure capable of suppressing spoiling the appearance of the entrance.

The underfloor ventilation structure according to the first aspect includes a foundation forming an underfloor space of a building, a storage unit provided adjacent to the entrance of the building and ventilated to the entrance through the entrance, and the storage unit. A ventilation portion formed on the wall of the storage portion that allows ventilation from the storage portion to the underfloor space, excluding the portion of the storage portion wall facing the entrance in the opening direction of the entrance. It has the ventilation portion formed in the non-opposing portion.

In the underfloor ventilation structure according to the first aspect, the underfloor space is ventilated by the air flowing from the entrance to the storage portion flowing to the underfloor space through the ventilation portion. Here, the ventilation portion is formed in a non-opposing portion of the storage portion wall excluding the facing portion facing the inlet in the opening direction of the inlet. Therefore, when the inside of the storage portion is viewed from the entrance through the entrance of the storage portion, the ventilation portion is not visible, so that the underfloor space is not visually visible through the ventilation portion. As a result, it is possible to prevent the appearance of the entrance from being spoiled.

The ventilation portion of the underfloor ventilation structure according to the second aspect is formed in a non-adjacent portion of the storage portion wall except for an adjacent portion adjacent to the entrance.

In the underfloor ventilation structure according to the second aspect, since the ventilation portion is formed in the non-adjacent portion, the ventilation portion is not arranged near the entrance of the storage portion, and the underfloor space is not visible through the ventilation portion. It is possible to suppress the spoiling of the appearance of the.

The ventilation portion of the underfloor ventilation structure according to the third aspect is formed in the non-front portion of the storage portion wall except for the front portion arranged in the opening direction.

In the underfloor ventilation structure according to the third aspect, since the ventilation portion is formed in the non-front portion, the underfloor space is not visible through the ventilation portion, so that it is possible to suppress spoiling the appearance of the entrance.

The underfloor ventilation structure according to the fourth aspect includes a foundation forming an underfloor space of a building, a storage unit provided adjacent to the entrance of the building and ventilated to the entrance through the entrance, and the storage unit. A ventilation portion formed on the wall of the storage portion forming the above and capable of ventilating from the storage portion to the underfloor space is arranged between the entrance and the ventilation portion to block the line of sight from the entrance to the ventilation portion. It has a shielding member.

In the underfloor ventilation structure according to the fourth aspect, the underfloor space is ventilated by the air flowing from the entrance to the storage portion flowing to the underfloor space through the ventilation portion. Here, the shielding member arranged between the entrance and the ventilation portion blocks the line of sight from the entrance to the ventilation portion. Therefore, when the inside of the storage portion is viewed from the entrance through the entrance of the storage portion, the ventilation portion is hidden by the shielding member, so that the underfloor space is not visually recognized through the ventilation portion. As a result, it is possible to prevent the appearance of the entrance from being spoiled.

The storage portion wall of the underfloor ventilation structure according to the fifth aspect partitions the storage portion and the living room of the building, and the inside of the living room and the storage are above the storage portion wall in the height direction of the building. An auxiliary vent is formed to communicate with the inside of the portion, and the storage portion wall is an auxiliary visual shielding member that allows the flow of air from the auxiliary vent and blocks the line of sight from the inlet to the auxiliary vent. Is provided.

In the underfloor ventilation structure according to the fifth aspect, air flows from the living room into the storage portion through the auxiliary ventilation port. As a result, the ventilation efficiency in the storage unit can be improved because the number of air paths flowing in the storage unit is increased as compared with the configuration in which the air flows in the storage unit only from the entrance. Since the auxiliary shielding member allows the air flow from the auxiliary vent to the inside of the storage portion, the air flow from the auxiliary vent to the inside of the storage portion is not blocked. In addition, the auxiliary vent is not visible from the entrance because the line of sight is blocked by the auxiliary shielding member. Therefore, it is possible to suppress spoiling the appearance of the entrance.

The underfloor ventilation structure according to the sixth aspect includes a foundation forming an underfloor space of the building, a storage unit provided adjacent to the entrance of the building and ventilated to the entrance through the entrance, and the storage unit. In the closed state of the ventilation portion formed on the wall of the storage portion constituting the storage portion and allowing ventilation from the storage portion to the underfloor space, a door that opens and closes the entrance on the entrance side of the storage portion, and a door that opens and closes the entrance. It has a hanging lower portion that suspends the door so as to be movable in the opening / closing direction so that a ventilable space is formed between the door and the floor of the storage portion.

In the underfloor ventilation structure according to the sixth aspect, the underfloor space is ventilated by the air flowing from the entrance to the storage portion flowing to the underfloor space through the ventilation portion. Here, the door that opens and closes the entrance blocks the line of sight from the entrance to the ventilation portion in the closed state of the entrance. Therefore, even if an attempt is made to look inside the storage unit from the entrance through the entrance of the storage unit, the ventilation portion is hidden by the door, so that the underfloor space cannot be visually recognized through the ventilation portion. As a result, it is possible to prevent the appearance of the entrance from being spoiled. In the closed state of the door, a ventilable space is formed between the door and the floor of the storage portion. Therefore, even if the door is closed, air flows from the entrance through the space to the inside of the storage. As a result, it is possible to suppress a decrease in the amount of air flowing into the underfloor space as compared with the configuration in which the space portion is not formed.

In the underfloor ventilation structure according to the seventh aspect, in the depth direction of the building or the frontage direction orthogonal to the depth direction, a doorway is provided on the side opposite to the entrance side, and the doorway is provided on the foundation. A wall body that separates the space on the side and the space under the floor is provided, and the wall body is formed with a wall body ventilation portion that allows ventilation from the space on the side of the door to the space under the floor.

In the underfloor ventilation structure according to the seventh aspect, air flows from the ventilation portion on the entrance side and the wall ventilation portion on the self-propelled entrance side to the underfloor space. In other words, air flows into the underfloor space from both the front side and the back side (or one side and the other side in the frontage direction) in the depth direction of the building. As a result, it is possible to suppress the accumulation of air in a part of the underfloor space in the depth direction or the frontage direction, as compared with the configuration in which the air flows to the underfloor space only from the ventilation portion on the entrance side.

In the underfloor ventilation structure according to the eighth aspect, an exhaust portion for exhausting air from the underfloor space to the outside is provided, and the distance from the ventilation portion to the exhaust portion and the distance from the wall body ventilation portion to the exhaust portion are set. equal. It should be noted that the fact that the distances are equal includes not only that the distances are completely the same, but also that they are substantially the same. Approximately the same means that the difference between the distance from the ventilation part to the exhaust part and the distance from the wall ventilation part to the exhaust part is about the width of the exhaust part in the horizontal direction when viewed from the exhaust direction. Means.

In the underfloor ventilation structure according to the eighth aspect, the exhaust portion is located at the apex portion of a virtual isosceles triangle whose apex on the base side is the position where the ventilation portion and the wall ventilation portion are arranged. Here, since the distance from the ventilation part to the exhaust part is equal to the distance from the wall body ventilation part to the exhaust part, air flows evenly from the ventilation part side and the wall body ventilation part side toward the exhaust part. .. As a result, the ventilation efficiency of the underfloor space can be improved.

As described above, the underfloor ventilation structure according to the present invention can suppress the appearance of the entrance from being spoiled.

It is a top view which shows the layout of the main part of the building which concerns on 1st Embodiment. It is explanatory drawing which shows the state which the air flows in the underfloor space which concerns on 1st Embodiment. It is explanatory drawing which shows the state which the air flows in the shoe cloak according to 1st Embodiment. It is explanatory drawing which shows the division of the storage part wall which concerns on 1st Embodiment. It is explanatory drawing of the underfloor ventilation structure which concerns on 2nd Embodiment. It is explanatory drawing of the underfloor ventilation structure which concerns on 3rd Embodiment. It is explanatory drawing of the underfloor ventilation structure which concerns on 4th Embodiment. It is explanatory drawing of the underfloor ventilation structure which concerns on 5th Embodiment. It is a top view which shows the layout of the main part of a building which concerns on a modification. It is explanatory drawing which shows the state which the air flows in the underfloor space which concerns on a modification.

[First Embodiment]
An example of the underfloor ventilation structure 30 according to the first embodiment will be described.

〔overall structure〕
FIG. 1 shows the first floor portion of the building 10 of the first embodiment. As an example, the building 10 has a two-story structure and faces the road 11. In the following description, the girder direction of the building 10 will be referred to as the Y direction, the wife direction will be referred to as the X direction, and the height direction will be referred to as the Z direction. The X, Y and Z directions are orthogonal to each other. The Y direction corresponds to the depth direction when the building 10 is viewed from the road 11 side. The X direction corresponds to the frontage direction of the building 10. An underfloor ventilation structure 30 (see FIG. 2), which will be described later, is applied to the building 10.

Further, in the following description, the road 11 side with respect to the center of the building 10 in the Y direction is referred to as the front side, and the side opposite to the road 11 side with respect to the center in the Y direction is referred to as the back side. Further, the side of the building 10 in the X direction in which the entrance 16 described later is provided is referred to as one side, and the side opposite to the center in the X direction is referred to as the other side. The illustration and description of the second floor of the building 10 will be omitted.

As shown in FIG. 2, the first floor portion of the building 10 is composed of four building units 14 assembled on the foundation 12 side by side in the Y direction as an example. Although not shown, the building unit 14 includes four columns, two sets of long and short floor girders arranged parallel to each other, and two sets of long and short ceiling girders arranged parallel to these floor girders. Is configured to include.

As shown in FIG. 1, the building 10 has an outer wall 18. The outer wall 18 divides the living space inside the building 10 and the space outside the building 10. Further, as an example, the building 10 includes an entrance 16, a shoe cloak 32, a floor floor 33, a living room 22, a kitchen 24, a bathroom 26, and a garbage storage area 27. Details of the shoe cloak 32 will be described later.

The entrance 16 is arranged on the front side of the building 10 with respect to the center in the Y direction and on one side of the building 10 with respect to the center in the X direction. The opening / closing door 16A of the entrance 16 is opened toward the road 11 side. A shoe cloak 32, which will be described later, is provided on the back side of the entrance 16. A partition wall 17 is provided on one side of the entrance 16 with respect to the center in the X direction and between the entrance 16 and the shoe cloak 32. A floor floor 33 is arranged on the other side of the entrance 16 with respect to the center in the X direction. Floor The floor 33 extends along the Y direction. Floor On the other side of the floor 33, a staircase 29 connecting the first floor portion and the second floor portion is arranged. In the present embodiment, the floor floor 33 is included in the living room 22 as an example.

A living room 22 is arranged behind the floor floor 33 and the shoe cloak 32. The living room 22 has a floor plate 22A extending along the XY plane. The floor plate 22A is arranged on the upper side in the Z direction with respect to the foundation 12 (see FIG. 2) described later. A kitchen 24 is arranged on the back side of the living room 22 with respect to one side. A self-propelled door 25 is provided on the back side of the kitchen 24. In other words, the kitchen door 25 is provided on the side of the building 10 opposite to the entrance 16 side with respect to the center in the Y direction. Further, a garbage storage area 27 is arranged on the back side of the kitchen 24 and on one side of the self-propelled door 25. A sliding door 27A is provided between the kitchen 24 and the garbage storage area 27. A bathroom 26 is arranged on the back side of the living room 22 with respect to the other side.

[Main part composition]
Next, the underfloor ventilation structure 30 will be described.

The underfloor ventilation structure 30 shown in FIG. 2 has a foundation 12, a shoe cloak 32 (see FIG. 1) as an example of a storage portion, and a ventilation portion 34.

<Basics>
The foundation 12 is formed by placing concrete on the ground 13. Further, as an example, the foundation 12 has a first foundation portion 12A, a second foundation portion 12B arranged on the front side and one side with respect to the first foundation portion 12A, and a back side and one side with respect to the first foundation portion 12A. It is configured to include a third foundation portion 12C arranged on the side. Further, a heat insulating material (not shown) is attached to the foundation 12.

The first foundation portion 12A has a first bottom portion 15A extending in the Y direction on the other side of the foundation 12 with respect to the center in the X direction and a first bottom portion 15A in the Y direction when viewed in a plan view (viewed from the upper side in the Z direction). It is formed in a substantially T shape having a second bottom portion 15B extending from the central portion of the above to one side in the X direction. The height of the upper surface of the first bottom portion 15A and the height of the upper surface of the second bottom portion 15B are aligned. Further, the first foundation portion 12A forms a lower portion of the underfloor space K in the Z direction.

The second foundation portion 12B is arranged on the front side with respect to the second bottom portion 15B, and is formed in a quadrangular shape when viewed in a plan view. The height of the upper surface of the second foundation portion 12B is higher than the height of the upper surface of the first foundation portion 12A. That is, a step 37 (see FIG. 3) is formed between the first foundation portion 12A and the second foundation portion 12B. Further, the second foundation portion 12B is used as an example of "tapping" of the entrance 16 (see FIG. 1).

The third foundation portion 12C is arranged on the back side with respect to the second bottom portion 15B, and is formed in a quadrangular shape when viewed in a plan view. The height of the upper surface of the third foundation portion 12C is higher than the height of the upper surface of the first foundation portion 12A, and is substantially the same as the height of the upper surface of the second foundation portion 12B. That is, a step (not shown) is formed between the first foundation portion 12A and the third foundation portion 12C. Further, the third foundation portion 12C is used as, as an example, as a "tapping" of the kitchen door 25 (see FIG. 1).

At the outer edge of the first foundation portion 12A and the step 37 (see FIG. 3) in the foundation 12, a vertical wall portion 38 surrounding the first foundation portion 12A and the step 37 stands along the Z direction in a plan view. It is installed.

(Vertical wall)
The vertical wall portion 38 includes a back wall 42, a wall body 44, and a side wall 46. The back wall 42 will be described later.

The wall body 44 is provided on the foundation 12 on the front side in the Y direction of the third foundation portion 12C along the Z direction, and includes a space on the side of the kitchen door 25 (see FIG. 1) and an underfloor space K in the building 10. Is partitioned. Further, the wall body 44 extends in the X direction with the Y direction as the thickness direction. Further, a part of the wall body 44 extends upward from the upper surface of the third foundation portion 12C, and divides the kitchen 24 and the garbage storage area 27 (see FIG. 1) in the Y direction. In addition, the wall body 44 is formed with a wall body vent 57 that penetrates in the Y direction.

The wall vent 57 is an example of the wall vent 57. Further, as an example, the wall vent 57 is formed in a rectangular shape with the X direction as the longitudinal direction and the Z direction as the lateral direction when viewed from the Y direction. The wall vent 57 is provided with a glass (not shown). At the wall vent 57, air can flow (ventilate) from the space on the side of the kitchen vent 25 to the underfloor space K. Then, in the wall vent 57, air flows from the space on the side of the self-propelled opening 25 to the underfloor space K by the exhaust operation of the ventilation fan 36 described later.

The side wall 46 is opposite to the side where the entrance 16 and the doorway 25 (see FIG. 1) are provided with respect to the center of the foundation 12 in the X direction (the other side of the first foundation portion 12A in the X direction with respect to the center). It is provided on the foundation 12 of the above along the Y direction and the Z direction (X direction is the thickness direction). The side wall 46 constitutes the lower part of the outer wall 18 (see FIG. 1). Further, the side wall 46 extends from the front side to the back side of the building 10 in the Y direction. In addition, an exhaust port 58 that penetrates the side wall 46 in the X direction is formed at a portion of the side wall 46 that is substantially central in the Y direction.

As an example, the exhaust port 58 is formed in a rectangular shape with the Y direction as the longitudinal direction and the Z direction as the lateral direction when viewed from the X direction. Further, the exhaust port 58 is provided on the side opposite to the side where the entrance 16 and the kitchen door 25 are arranged with respect to the center of the building 10 in the Y direction. The exhaust port 58 is provided with a ventilation fan 36, which will be described later. At the exhaust port 58, air can flow from the underfloor space K to the space outside the building 10. Then, at the exhaust port 58, air is forcibly flowed (exhaust is performed) from the underfloor space K to the space outside the building 10 by the exhaust operation of the ventilation fan 36 described later.

Here, the underfloor space K includes a first foundation portion 12A, a vertical wall portion 38, a floor plate 21 of the living room 22 (see FIG. 3), and a floor plate of the bathroom 26 and the floor floor 33 (see FIG. 1) (not shown). It is surrounded and formed. As described above, the lower portion of the underfloor space K in the Z direction is formed by the first foundation portion 12A. The central portion and the upper portion of the underfloor space K in the Z direction are formed by the vertical wall portion 38 and the floor plate 21. A sensor 39 is provided at a portion of the underfloor space K facing the side wall 46 in the X direction. As an example, the sensor 39 measures the temperature in the underfloor space K. The temperature information measured by the sensor 39 is sent to the control unit 40, which will be described later.

<Shoe cloakroom>
As shown in FIG. 1, the shoe cloak 32 is provided adjacent to the entrance 16. Further, the shoe cloak 32 is formed in a rectangular shape with the X direction as the longitudinal direction and the Y direction as the lateral direction in a plan view, and is a space portion in which a plurality of footwear S (see FIG. 3) and the like are stored. Has been done. Specifically, the shoe cloak 32 is configured to be surrounded by a storage portion wall 35. In a plan view, the storage wall 35 extends in the X direction on the front side in the Y direction, the back wall 42 extending in the X direction on the back side in the Y direction, and extends in the Y direction on one side in the X direction. It has an outer wall 43 and an inner wall 45 extending in the Y direction on the other side in the X direction. The floor 32A of the shoe cloak 32 is composed of a foundation 12 (see FIG. 2). Further, a ceiling wall 32B (see FIG. 3) is provided on the upper side of the shoe cloak 32 in the Z direction.

The partition wall 17 is arranged to face the opening / closing door 16A of the entrance 16 in the Y direction. Further, as an example, the partition wall 17 has a wall portion 17A that covers the entire Z direction from the center to one end of the shoe cloak 32 in the X direction and Z from the center to the other end in the X direction when viewed from the Y direction. It has a wall portion 17B (see FIG. 3) that covers only the upper end portion in the direction. The space between the partition wall 17 and the inner wall 45 in the X direction is the entrance 41 for entering the shoe cloak 32 from the entrance 16. That is, a part of the shoe cloak 32 is open toward the entrance 16. As a result, the shoe cloak 32 can be ventilated to the entrance 16 through the entrance 41. The back wall 42 divides (divides) the shoe cloak 32 and the living room 22.

FIG. 4 schematically shows a plan view of the back wall 42, the partition wall 17, the outer wall 43, and the inner wall 45 of the shoe cloak 32. Of the regions of the back wall 42, the region facing the inlet 41 in the opening direction (Y direction) of the inlet 41 is referred to as a region SA, and the region not facing the inlet 41 is referred to as a region SB to distinguish them. The region of the partition wall 17 is referred to as a region SC, the region of the outer wall 43 is referred to as a region SD, and the region of the inner wall 45 is referred to as a region SE.

Here, in each wall constituting the shoe cloak 32, a portion located in the region SA is referred to as a facing portion 47A, and is located in a portion (region SB, region SC, region SD, and region SE excluding the facing portion 47A). The portion) is referred to as a non-opposing portion 47B. Further, among the non-opposing portions 47B, the portions arranged in the X direction orthogonal to the Y direction and adjacent to the inlet 41 are referred to as adjacent portions 48A, and the portions excluding the adjacent portion 48A (region SB, region SC and region SD). The portion located inside) is referred to as a non-adjacent portion 48B. In addition, among the non-adjacent portions 48B, the portion arranged in the Y direction (the portion located in the region SB) is referred to as the front portion 49A, and the portion excluding the front portion 49A (in the region SD and the region SC). The located portion) is referred to as a non-frontal portion 49B.

<Ventilation part>
As an example, the ventilation portion 34 shown in FIG. 2 is composed of a ventilation port 56 formed in a non-opposing portion 47B and a non-adjacent portion 48B (see FIG. 4) of the back wall 42. As an example, the vent 56 is formed in a rectangular shape with the X direction as the longitudinal direction and the Z direction as the lateral direction when viewed from the Y direction. As shown in FIG. 3, the vent 56 is provided with a garage 51 (see FIG. 3). The vent 56 allows air to flow (vent) from the space on the shoe cloak 32 and the entrance 16 (see FIG. 1) side to the underfloor space K. At the vent 56, air is forcibly flowed from the space on the shoe cloak 32 and the entrance 16 side to the underfloor space K by the exhaust operation of the ventilation fan 36 (see FIG. 2) described later.

As shown in FIG. 2, the arrangement of the ventilation holes 56 is, as an example, an arrangement in which the ventilation holes 56 are arranged (opposed) to the wall ventilation holes 57 in the Y direction. Further, when viewed from the X direction, the vent 56 is arranged on the front side in the Y direction with respect to the exhaust port 58, and the wall vent 57 is on the back side in the Y direction with respect to the exhaust port 58. Is located in. Here, the position at the center of the exhaust port 58 in the X direction and the Y direction is defined as the point A. Further, the position at the center of the vent 56 in the X direction and the Y direction is defined as the point B. Further, a position at the center of the wall vent 57 in the X direction and the Y direction is defined as a point C. In the present embodiment, as an example, the length L1 (distance L1) of the line segment AB and the length L2 (distance L2) of the line segment AC are equal. In other words, the exhaust port 58, the vent 56, and the wall vent 57 are arranged so that the triangle ABC has an isosceles triangle shape when viewed from the Z direction, for example. The fact that the distance L1 and the distance L2 are equal includes not only that the distance L1 and the distance L2 are completely the same, but also that the distance L1 and the distance L2 are substantially the same. Approximately the same means that the difference between the distance L1 from the vent 56 to the exhaust port 58 and the distance L2 from the wall vent 57 to the exhaust port 58 is the exhaust port 58 when viewed from the exhaust direction (X direction). It means that the width of the Y direction (horizontal direction) is included.

<Shelf board>
As shown in FIG. 3, a plurality of shelf boards 52 are provided on the back wall 42 in the shoe cloak 32 at intervals in the Z direction. Each shelf board 52 extends from the back wall 42 toward the front side in the Y direction with the Z direction as the thickness direction. In the first embodiment, the plurality of shelf boards 52 are provided at positions of the back wall 42 facing the portion above the central portion in the Z direction in the Y direction. A plurality of footwear S are placed on the shelf board 52. In each figure, the air flow is indicated by the dotted line Af.

<Ventilation fan>
The ventilation fan 36 and the exhaust port 58 shown in FIG. 2 are examples of the exhaust unit. The ventilation fan 36 is provided at the exhaust port 58. Further, the ventilation fan 36 has a fan 36A and a motor (not shown), and exhausts air from the underfloor space K to the outside by the rotation of the fan 36A. The drive control of the motor (not shown) is performed by the control unit 40 provided on the side wall 46. The control unit 40 includes a CPU, a memory, and a non-volatile storage unit, and drives a motor (not shown) when the temperature measured by the sensor 39 exceeds a set temperature (25 ° C. as an example). It is configured to rotate the fan 36A. Further, the control unit 40 is configured to stop the driving of a motor (not shown) to stop the rotation of the fan 36A when the temperature measured by the sensor 39 becomes equal to or lower than the set temperature.

As described above, the exhaust port 58, the vent 56, and the wall vent 57 are arranged so that the triangular ABC has an isosceles triangle shape. In other words, the ventilation fan 36 is provided on the side wall 46 so that the distance from the ventilation port 56 to the ventilation fan 36 (length L1) and the distance from the wall vent 57 to the ventilation fan 36 (length L2) are equal. Has been done. It should be noted that the fact that the length L1 and the length L2 are equal includes not only that they are completely the same but also that they are substantially the same. Approximately the same means that the difference between the length L1 and the length L2 is about the width of the exhaust port 58 in the horizontal direction when viewed from the X direction.

[Action]
Next, the operation of the underfloor ventilation structure 30 of the first embodiment will be described with reference to FIGS. 1 to 3.

In the underfloor ventilation structure 30, when the temperature measured by the sensor 39 exceeds the set temperature, the ventilation fan 36 starts the exhaust operation. As a result, the air in the underfloor space K is exhausted to the outside of the building 10 through the exhaust port 58. Further, since the air in the underfloor space K is exhausted, the inside of the underfloor space K becomes a negative pressure state, so that the air in the shoe cloak 32 in the atmospheric pressure state passes through the vent 56 and is in the underfloor space. It is forced to flow to K. Even when the ventilation fan 36 is not performing the exhaust operation, the air in the shoe cloak 32 may flow to the underfloor space K through the vent 56 due to a pressure difference due to a temperature difference or the like. The dotted arrow Af shown in the figure schematically shows a part of the air flow.

As the air in the shoe cloak 32 flows into the underfloor space K, the air flows from the living room 22 into the shoe cloak 32 through the entrance 16 and the entrance 41. In this way, the air in the living room 22 flows to the underfloor space K via the entrance 16, the shoe cloak 32, and the vent 56, and is exhausted to the outside by the ventilation fan 36. Therefore, the air is exhausted to a part of the underfloor space K. The retention is suppressed and the underfloor space K is ventilated. Since the humidity of the air in the living room 22 is generally lower than the humidity in the underfloor space K, the humidity in the underfloor space K decreases as the air in the living room 22 flows into the underfloor space K.

Here, the vent 56 (ventor 34) is formed at the lower end of the non-opposing portion 47B of the back wall 42 of the shoe cloak 32, excluding the facing portion 47A facing the inlet 41 in the Y direction. Therefore, when the inside of the shoe cloak 32 is viewed from the entrance 16 through the entrance 41, the vent 56 is not visible, so that the underfloor space K is not visible through the vent 56. As a result, it is possible to suppress the appearance of the entrance 16 from being spoiled as compared with the configuration in which the vent 56 is exposed to the entrance 16.

Further, in the underfloor ventilation structure 30, since the vent 56 is formed in the non-adjacent portion 48B, the vent 56 is not arranged near the entrance 41 of the shoe cloak 32, and the underfloor space K is visually recognized through the vent 56. There will be no such thing. Therefore, it is possible to prevent the entrance 16 from being spoiled in appearance.

Further, in the underfloor ventilation structure 30, air is forcibly flowed from the vent 56 on the entrance 16 side and the wall vent 57 on the self-propelled port 25 side to the underfloor space K by the exhaust operation of the ventilation fan 36. In other words, air flows from both the front side and the back side in the Y direction to the underfloor space K. As a result, it is possible to suppress the accumulation of air in a part of the underfloor space K as compared with the configuration in which the air flows to the underfloor space K only from the ventilation port 56 on the entrance 16 side.

In addition, in the underfloor ventilation structure 30, the ventilation fan 36 is located at the apex portion of a virtual isosceles triangle whose apex on the base side is the position where the vent 56 and the wall vent 57 are arranged. Here, the distance from the vent 56 to the ventilation fan 36 (length L1) and the distance from the wall vent 57 to the ventilation fan 36 (length L2) are equal. Therefore, air flows substantially evenly from the vent 56 side and the wall vent 57 side toward the ventilation fan 36. Further, the ventilation fan 36 is located on the side opposite to the side where the vent 56 and the wall vent 57 are formed with respect to the center in the X direction. Therefore, the distance from the vent 56 and the wall vent 57 to the ventilation fan 36 is longer than that in the configuration in which the ventilation fan 36 is arranged on the same side as the vent 56 and the wall vent 57. As a result, the operation of the ventilation fan 36 causes air to flow in a wide range of the underfloor space K, so that the ventilation efficiency of the underfloor space K can be improved. The ventilation efficiency of the underfloor space K increases as the size of the virtual isosceles triangle increases.

[Second Embodiment]
Next, an example of the underfloor ventilation structure 50 according to the second embodiment will be described. The same members and parts as those in the first embodiment are designated by the same reference numerals as those in the first embodiment, and the description thereof will be omitted.

FIG. 5 shows the underfloor ventilation structure 50 according to the second embodiment. The underfloor ventilation structure 50 has a configuration in which the underfloor ventilation structure 30 (see FIG. 1) of the first embodiment is provided with a lower shelf plate 54 as an example of a shielding member on the back wall 42.

The lower shelf board 54 is one of the plurality of shelf boards 52, and is located at the lowermost side in the Z direction. Further, the lower shelf plate 54 extends with the X direction as the longitudinal direction and the Y direction as the lateral direction. The length of the lower shelf board 54 in the X direction, the length in the Y direction, and the installation position in the Z direction allow a person standing at the entrance 16 to visually recognize a portion of the back wall 42 below the lower shelf board 54 in the Z direction. It is set so that it cannot be done. In other words, the lower shelf board 54 is arranged between the entrance 41 and the vent 56 (vent section 34), and blocks the line of sight from the inlet 41 to the vent 56 when the back wall 42 is viewed from the entrance 16. It is configured to (conceal the vent 56). Here, since a space is formed between the floor 32A of the shoe cloak 32 and the lower shelf plate 54, the flow of air to the vent 56 is allowed.

[Action]
Next, the operation of the underfloor ventilation structure 50 of the second embodiment will be described.

In the underfloor ventilation structure 50, the air flowing from the entrance 16 into the shoe cloak 32 flows to the underfloor space K through the vent 56, so that the underfloor space K is ventilated. Here, the lower shelf plate 54 arranged between the inlet 41 and the vent 56 blocks the line of sight from the inlet 41 to the vent 56. Therefore, even if the line of sight may be lowered when the inside of the shoe cloak 32 is viewed from the entrance 16 through the entrance 41, the vent 56 is hidden by the lower shelf plate 54, so that the underfloor space K can be visually recognized through the vent 56. There will be no such thing. As a result, it is possible to prevent the entrance 16 from being spoiled in appearance.

[Third Embodiment]
Next, an example of the underfloor ventilation structure 60 according to the third embodiment will be described. The same members and parts as those in the first and second embodiments described above are designated by the same reference numerals as those in the first and second embodiments, and the description thereof will be omitted.

FIG. 6 shows the underfloor ventilation structure 60 according to the third embodiment. The underfloor ventilation structure 60 is configured such that the auxiliary vent 62 is formed in the upper part of the back wall 42 in the underfloor ventilation structure 50 (see FIG. 5) of the second embodiment.

The auxiliary vent 62 is formed on one side of the center of the back wall 42 in the X direction and above the center of the back wall 42 in the Z direction (for example, near the upper end of the back wall 42). Further, as an example, the auxiliary vent 62 is formed in a rectangular shape with the X direction as the longitudinal direction and the Z direction as the lateral direction when viewed from the Y direction. The auxiliary vent 62 is provided with a gallery 63. The auxiliary vent 62 communicates the inside of the living room 22 with the inside of the shoe cloak 32.

Further, a cover member 64 as an example of the auxiliary shielding member is provided on the side surface of the back wall 42 on the shoe cloak 32 side. As an example, the cover member 64 includes a bottom plate 64A extending toward the front side in the Y direction from a portion of the peripheral edge portion of the auxiliary vent 62 that is lower in the Z direction, and a front end portion of the bottom plate 64A in the Y direction. It has a vertical plate 64B that stands upright in the Z direction. A distribution portion 66, which is a space through which air flows, is formed between the upper end portion of the vertical plate 64B in the Z direction and the ceiling wall 32B. In this way, the cover member 64 allows the flow of air from the auxiliary vent 62 into the shoe cloak 32 and blocks the line of sight from the inlet 41 to the auxiliary vent 62. In other words, the cover member 64 hides the auxiliary vent 62 from the front side (entrance 16 side) in the Y direction.

[Action]
Next, the operation of the underfloor ventilation structure 60 of the third embodiment will be described.

In the underfloor ventilation structure 60 shown in FIG. 6, air flows from the entrance 16 into the shoe cloak 32 along with the operation of the ventilation fan 36 (see FIG. 2), and the living room 22 passes through the auxiliary vent 62 of the back wall 42. Air flows into the shoe cloak 32. As a result, the air passages in the shoe cloak 32 are increased as compared with the configuration in which the air flows in the shoe cloak 32 only from the entrance 16, so that the ventilation efficiency in the shoe cloak 32 is increased even if the inlet 41 has a narrow structure. Can be enhanced.

Further, in the underfloor ventilation structure 60, since the cover member 64 blocks the line of sight to the auxiliary vent 62, the cover member 64 is visible when the back wall 42 is viewed from the entrance 16, but the auxiliary vent 62 Is not visible. As a result, it is possible to prevent the entrance 16 from being spoiled in appearance. The cover member 64 allows the flow of air from the auxiliary vent 62 into the shoe cloak 32 by forming the circulation portion 66. Therefore, the air flow from the living room 22 to the shoe cloak 32 through the auxiliary vent 62 is not blocked.

Further, in the underfloor ventilation structure 60, since the auxiliary vent 62 is formed near the upper end portion of the back wall 42, the auxiliary vent 62 is compared with the configuration formed in the central portion of the back wall 42. The distance from 62 to the vent 56 becomes longer. As a result, since air flows in a wide range in the shoe cloak 32, it is possible to prevent a part of the shoe cloak 32 from becoming difficult to ventilate. In addition, since the auxiliary vent 62 is formed near the upper end of the back wall 42, the air flow path from the living room 22 can be secured even when furniture such as a chest of drawers and shelves is arranged in the living room 22. Can be done.

[Fourth Embodiment]
Next, an example of the underfloor ventilation structure 70 according to the fourth embodiment will be described. The same members and parts as those in the first, second, and third embodiments described above are designated by the same reference numerals as those in the first, second, and third embodiments, and the description thereof will be omitted. ..

FIG. 7 shows the underfloor ventilation structure 70 according to the fourth embodiment. The underfloor ventilation structure 70 has a configuration in which the door 72 and the hanging lower portion 74 are provided at the entrance 41 of the shoe cloak 32 in the underfloor ventilation structure 50 (see FIG. 5) of the second embodiment. In FIG. 7, in order to show the underfloor ventilation structure 70 in an easy-to-understand manner, the door 72, the hanging lower portion 74, and the ventilation port 56 are shown side by side in the Y direction.

The door 72 is formed in a plate shape extending along the X direction and the Z direction. The width of the door in the X direction is wider than the width of the entrance 41 in the X direction. The height of the door 72 in the Z direction is lower than the height of the entrance 41 in the Z direction. As a result, a ventilable space 76 is formed between the door 72 and the floor 32A of the shoe cloak 32. Here, in a state where the door 72 is suspended by the hanging lower portion 74 described later, the height position of the lower end of the door 72 in the Z direction is, for example, about the same as the height position of the upper end of the vent 56 in the Z direction. It is said that. Further, the door 72 opens and closes the entrance 41 on the entrance 16 side of the shoe cloak 32 by being moved in the X direction.

As an example, the suspended lower portion 74 includes a guide rail 74A extending in the X direction, a guided portion 74B that engages with the guide rail 74A and is guided (guided) in the X direction, and a guided portion 74B and a door 72. It has a connecting portion 74C for connecting to the upper end.

The cross section of the guide rail 74A when viewed from the X direction is formed in an inverted U shape that opens downward in the Z direction. Further, as an example, the guide rail 74A is provided on the shoe cloak 32 side adjacent to the wall portion 17B. The guided portion 74B is engaged with the guide rail 74A in the Z direction and is supported by a stopper (not shown) to prevent the portion from falling. Further, the guided portion 74B is movable in the X direction along the guide rail 74A. The connecting portion 74C extends downward from the lower surface of the guided portion 74B in the Z direction, and the lower end portion is fixed to the upper end surface of the door 72 to connect the guided portion 74B and the door 72. ..

Here, the hanging lower portion 74 opens and closes the door 72 so that a ventilable space 76 is formed between the door 72 and the floor 32A of the shoe cloak 32 in the closed state in which the door 72 closes the entrance 41. It is suspended so that it can be moved in the direction (X direction as an example).

[Action]
Next, the operation of the underfloor ventilation structure 70 of the fourth embodiment will be described.

In the underfloor ventilation structure 70 shown in FIG. 7, the air flowing from the entrance 16 into the shoe cloak 32 flows to the underfloor space K through the vent 56 to ventilate the underfloor space K. Here, the door 72 that opens and closes the inlet 41 blocks the line of sight from the inlet 41 to the vent 56 in the closed state of the inlet 41. Therefore, even if an attempt is made to look inside the shoe cloak 32 from the entrance 16 through the entrance 41, the vent 56 is hidden by the door 72, so that the underfloor space K is not visible through the vent 56. As a result, it is possible to prevent the entrance 16 from being spoiled in appearance. In the closed state of the door 72, a ventilable space 76 is formed between the door 72 and the floor 32A. Therefore, even when the door 72 is closed, air flows from the entrance 16 through the space 76 into the shoe cloak 32. As a result, it is possible to suppress a decrease in the amount of air flowing into the underfloor space K as compared with a configuration in which the space portion 76 is not formed (a configuration in which the entire entrance 41 is sealed by a door (not shown)).

[Fifth Embodiment]
Next, an example of the underfloor ventilation structure 80 according to the fifth embodiment will be described. The same members and parts as those in the first to fourth embodiments described above are designated by the same reference numerals as those in the first to fourth embodiments, and the description thereof will be omitted.

FIG. 8 shows the underfloor ventilation structure 80 according to the fifth embodiment. The underfloor ventilation structure 80 has a configuration in which the shoe cloak 32 is arranged on one side of the X direction with respect to the entrance 16 with the Y direction as the longitudinal direction in the underfloor ventilation structure 30 (see FIG. 1) of the first embodiment. Further, a partition wall 82 extending in the X direction and partitioning the entrance 16 and the living room 22 is provided. The position of the vent 56 is the same as that of the first embodiment.

The shoe cloak 32 of the fifth embodiment is configured to be surrounded by the storage portion wall 35. The storage portion wall 35 has a partition wall 84, a partition wall 86, a back wall 42, and an outer wall 43 along the X direction in a plan view. The partition wall 84 extends in the Y direction from one end of the partition wall 82 in the X direction. The partition wall 86 extends along the X direction from the rear end of the partition wall 84 in the Y direction. The back wall 42 forms a part of the outer wall 43 along the Y direction, and extends from one end of the partition wall 86 in the X direction toward the front side along the Y direction. The outer wall 43 along the X direction extends from the front end of the back wall 42 in the Y direction to the opening / closing door 16A. Further, the space between the other end of the outer wall 43 in the X direction along the X direction and one end of the partition wall 82 is an entrance 41 for entering the shoe cloak 32 from the entrance 16. The shoe cloak 32 is ventilated to the entrance 16 through the entrance 41.

In the shoe cloak 32, among the regions of the back wall 42, the region facing the entrance 41 in the opening direction (X direction) of the inlet 41 is referred to as a region SA, and the region not facing the inlet 41 is referred to as a region SB to distinguish them. The region of the outer wall 43 along the X direction is referred to as SC, the region of the partition wall 84 is referred to as region SD, and the region of the partition wall 86 is referred to as region SE.

Here, in each wall constituting the shoe cloak 32, a portion located in the region SA is referred to as a facing portion 87A, and is located in a portion (region SB, region SC, region SD, and region SE excluding the facing portion 87A). The portion) is referred to as a non-opposing portion 87B. Further, among the non-opposing portions 87B, a portion arranged in the Y direction orthogonal to the X direction, which is the opening direction of the inlet 41, and adjacent to the inlet 41 is referred to as an adjacent portion 88A. Further, among the non-opposing parts 87B, the parts (the parts located in the area SB, the area SD and the area SE) excluding the adjacent part 88A are referred to as the non-adjacent part 88B. In addition, among the non-adjacent portions 88B, the portion arranged in the X direction (the portion located in the region SB) is referred to as the front portion 89A, and the portion excluding the front portion 89A (in the region SE and the region SD). The located portion) is referred to as a non-frontal portion 89B.

The ventilation portion 34 (vent 56) is formed in the non-front portion 89B of the non-adjacent portion 88B of the storage portion wall 35. The arrangement of the vents 56 is the same as that of the first embodiment. The ventilation portion 34 may be provided in the region SD.

[Action]
Next, the operation of the underfloor ventilation structure 80 of the fifth embodiment will be described.

In the underfloor ventilation structure 80, the vent 56 (ventilation portion 34) is formed in the partition wall 86 which is the non-opposing portion 87B, the non-adjacent portion 88B, and the non-front portion 89B of the storage portion wall 35 in the shoe cloak 32. .. Therefore, when the inside of the shoe cloak 32 is viewed from the entrance 16 through the entrance 41, the vent 56 is not visible, so that the underfloor space K (see FIG. 2) is not visible through the vent 56. As a result, it is possible to suppress the appearance of the entrance 16 from being spoiled as compared with the configuration in which the vent 56 is exposed to the entrance 16.

The present invention is not limited to the above embodiment.

<Modification example>
FIG. 9 shows a modified building 90 having a wider frontage than the building 10 (see FIG. 1). The same components as those of the building 10 (see FIG. 1) are given the same reference numerals as those of the building 10, and the description thereof will be omitted.

In the building 90, the living room 92 extends in the X direction on the back side in the Y direction with respect to the road 11. A kitchen 24 is arranged at the other end in the X direction with respect to the living room 92. A shoe cloak 94 is arranged on the front side of the living room 92 and at one end in the X direction. The entrance 96 is located on the other side of the shoe cloak 94 in the X direction. The bathroom 26 is arranged on the other side of the entrance 96 in the X direction, and the door 25 is arranged on the other side of the bathroom 26 in the X direction. The self-propelled door 25 and the kitchen 24 are separated by a sliding door 27A.

As shown in FIG. 10, in the building 90, the first foundation portion 12A is arranged on the back side in the Y direction, and the second bottom portion 15B extends from the center of the first bottom portion 15A in the X direction to the front side in the Y direction. ing. The second foundation portion 12B is arranged on one side in the X direction with respect to the second bottom portion 15B. The third foundation portion 12C is arranged on the other side in the X direction with respect to the second bottom portion 15B. A back wall 102 is arranged along the X direction between the first bottom portion 15A and the second foundation portion 12B. A wall body 104 is arranged along the X direction between the first bottom portion 15A and the third foundation portion 12C. A side wall 106 is arranged on the back side in the Y direction with respect to the first foundation portion 12A. The wall including the back wall 102, the wall body 104, and the side wall 106 and surrounding the first foundation portion 12A is referred to as a vertical wall portion 101.

A vent 56 that penetrates the back wall 102 in the Y direction is formed at the lower end of the back wall 102. The wall body 104 is formed with a wall body vent 57 that penetrates the wall body 104 in the Y direction. An exhaust port 58 that penetrates the side wall 106 in the Y direction is formed at the center of the side wall 106 in the X direction. A ventilation fan 36 is provided at the exhaust port 58. Here, the underfloor space K is formed by being surrounded by the first foundation portion 12A, the vertical wall portion 101, and the floor plate 21 (see FIG. 3). A sensor 39 is provided in the underfloor space K. In the building 90, the foundation 12, the ventilation fan 36, the shoe cloak 94 (see FIG. 9), the vent 56, the lower shelf board 54 (see FIG. 5), the sensor 39, and the control unit 40 (see FIG. 2). As a result, the underfloor ventilation structure 100 is configured.

In the underfloor ventilation structure 100, when the temperature measured by the sensor 39 exceeds the set temperature, the ventilation fan 36 starts the exhaust operation. As a result, the air in the underfloor space K is exhausted to the outside of the building 90 through the exhaust port 58. When the air in the underfloor space K is exhausted, the inside of the underfloor space K is in a negative pressure state, so that the air in the shoe cloak 94 (see FIG. 9), which is in an atmospheric pressure state, passes through the vent 56. Flows into the underfloor space K.

As the air in the shoe cloak 94 flows into the underfloor space K, air flows from the living room 92 (see FIG. 9) through the entrance 96 into the shoe cloak 94. In this way, the air in the living room 92 flows to the underfloor space K via the entrance 96, the shoe cloak 94, and the vent 56, and is exhausted to the outside by the ventilation fan 36, so that the air in a part of the underfloor space K. Is suppressed and the underfloor space K is ventilated.

Further, in the underfloor ventilation structure 100, a vent 56 is formed at the lower end of the back wall 102 of the shoe cloak 94. Further, the line of sight of the vent 56 is blocked by the lower shelf plate 54 (see FIG. 5). That is, the vent 56 is not visible from the entrance 96. As a result, in the underfloor ventilation structure 100 that ventilates the underfloor space K by using the ventilation fan 36, it is possible to suppress the appearance of the entrance 96 from being spoiled as compared with the configuration in which the vent 56 is exposed to the entrance 96.

Further, in the underfloor ventilation structure 100, air flows from the vent 56 on the entrance 96 side and the wall vent 57 on the self-propelled port 25 side to the underfloor space K. In other words, air flows from both one side and the other side in the frontage direction of the building 90 to the underfloor space K. As a result, it is possible to suppress the accumulation of air in a part of the underfloor space K in the frontage direction, as compared with the configuration in which the air flows to the underfloor space K only from the ventilation port 56 on the entrance 96 side.

In addition, in the underfloor ventilation structure 100, since the distance from the ventilation port 56 to the exhaust port 58 is equal to the distance from the wall body ventilation port 57 to the exhaust port 58, the ventilation port 56 side toward the exhaust port 58. , Air flows evenly from the wall vent 57 side. Further, the exhaust port 58 is located on the side opposite to the side where the entrance 96 and the kitchen door 25 are arranged with respect to the center in the depth direction. As a result, air flows over a wide range of the underfloor space K, so that the ventilation efficiency of the underfloor space K can be improved.

<Other variants>
In the underfloor ventilation structure 30, the distance from the vent 56 to the ventilation fan 36 and the distance from the wall vent 57 to the ventilation fan 36 may be different. Further, the wall vent 57 may not be formed on the wall 44. Further, the vent 56 may be formed in the adjacent portion 48A of the non-opposing portion 47B.

In the underfloor ventilation structure 50, the lower shelf plate 54 may not be provided. Further, the distance from the vent 56 to the ventilation fan 36 and the distance from the wall vent 57 to the ventilation fan 36 may be different. Further, the wall vent 57 may not be formed on the wall 44. In addition, the vent 56 may be formed in the adjacent portion 48A of the non-opposing portion 47B.

In the underfloor ventilation structure 60, the lower shelf plate 54 may not be provided. Further, the distance from the vent 56 to the ventilation fan 36 and the distance from the wall vent 57 to the ventilation fan 36 may be different. Further, the wall vent 57 may not be formed on the wall 44.

In the underfloor ventilation structure 70, an auxiliary ventilation port 62 may be formed on the back wall 42. Further, the distance from the vent 56 to the ventilation fan 36 and the distance from the wall vent 57 to the ventilation fan 36 may be different. Further, the wall vent 57 may not be formed on the wall 44.

In the underfloor ventilation structure 80, the distance from the ventilation port 56 to the ventilation fan 36 and the distance from the wall body ventilation port 57 to the ventilation fan 36 may be different. Further, the wall vent 57 may not be formed on the wall 44. Further, the vent 56 may be formed in the non-adjacent portion 88B of the partition wall 84 or the back wall 42.

In the underfloor ventilation structure 100, the distance from the ventilation port 56 to the ventilation fan 36 and the distance from the wall body ventilation port 57 to the ventilation fan 36 may be different. Further, the wall vent 57 may not be formed on the wall 44.

A floor portion made of a material different from the material constituting the foundation 12 may be provided on the first foundation portion 12A. For example, a floor portion made of moisture-proof concrete, which is a material different from the material constituting the foundation 12, may be provided only on the first foundation portion 12A.

The storage portion is not limited to the shoe cloakrooms 32 and 94, and may be a storage unit. The ventilation portion 34 is not limited to the configuration formed at one location on the back wall 42 like the ventilation port 56, and may be formed at a plurality of locations on the back wall 42. The exhaust means is not limited to one such as the ventilation fan 36, and a plurality of exhaust means may be provided.

The sensor 39 is not limited to the one that measures the temperature, and may be the one that measures the humidity. Further, the sensor 39 may measure temperature and humidity. In this case, a reference value may be set for at least one of the temperature and humidity, and the ventilation fan 36 may be operated when the reference value is exceeded.

10 Building 12 Foundation 16 Entrance 22 Living room 25 Self-propelled door 30 Underfloor ventilation structure 32 Shoe cloakroom (example of storage)
32A Floor 34 Ventilation 35 Storage wall 36 Ventilation fan (example of exhaust)
41 Entrance 44 Wall 47A Opposing part 47B Non-opposing part 48A Adjacent part 48B Non-adjacent part 49A Front part 49B Non-front part 50 Underfloor ventilation structure 54 Lower shelf board (example of shielding member)
57 Wall vent (an example of wall vent)
58 Exhaust port (example of exhaust part)
60 Underfloor ventilation structure 62 Auxiliary vent 64 Cover member (auxiliary shielding member)
70 Underfloor ventilation structure 72 Door 74 Suspended lower part 76 Space part 80 Underfloor ventilation structure 87A Opposing part 87B Non-opposing part 88A Adjacent part 88B Non-adjacent part 89A Front part 89B Non-front part 90 Building 92 Living room 94 Shoe cloak (example of storage part)
96 Entrance 100 Underfloor ventilation structure 102 Storage wall 104 Wall body K Underfloor space

Claims (8)

The foundation that forms the underfloor space of the building and
A storage unit that is provided adjacent to the entrance of the building and is ventilated to the entrance through the entrance.
A ventilation portion formed on a storage portion wall constituting the storage portion and capable of ventilating from the storage portion to the underfloor space, and is a portion of the storage portion wall facing the entrance in the opening direction of the entrance. It has the ventilation part formed in the non-opposing part excluding the above , and has.
The vertical wall portion that separates the underfloor space from the other space is formed in a convex shape in a plan view.
Vents that allow ventilation to the underfloor space are formed in the vertical wall portions located in a pair of recesses bent inside the building on both sides of the convex protrusion in the direction of the building girder.
An exhaust portion that automatically exhausts air from the underfloor space to the outside is formed in a substantially intermediate portion in the building girder direction of the side wall forming the long side of the convex shape.
Underfloor ventilation structure. The underfloor ventilation structure according to claim 1, wherein the ventilation portion is formed in a non-adjacent portion of the storage portion wall except for an adjacent portion adjacent to the entrance. The underfloor ventilation structure according to claim 2, wherein the ventilation portion is formed in the non-adjacent portion of the storage portion wall except for the front portion arranged in the opening direction. The foundation that forms the underfloor space of the building and
A storage unit that is provided adjacent to the entrance of the building and is ventilated to the entrance through the entrance.
A ventilation portion formed on the storage portion wall constituting the storage portion and capable of ventilating from the storage portion to the underfloor space, and a ventilation portion.
It said inlet and said disposed between the vent portion, have a, and Saegishi member that blocks the line of sight to the vent from said inlet,
The vertical wall portion that separates the underfloor space from the other space is formed in a convex shape in a plan view.
Vents that allow ventilation to the underfloor space are formed in the vertical wall portions located in a pair of recesses bent inside the building on both sides of the convex protrusion in the direction of the building girder.
An exhaust portion that automatically exhausts air from the underfloor space to the outside is formed in a substantially intermediate portion in the building girder direction of the side wall forming the long side of the convex shape.
Underfloor ventilation structure. The storage section wall separates the storage section from the living room of the building.
An auxiliary vent is formed in the upper part of the storage portion wall in the height direction of the building to communicate the inside of the living room and the inside of the storage portion.
Any of claims 1 to 4, wherein the storage portion wall is provided with an auxiliary visual shielding member that allows the flow of air from the auxiliary ventilation port and blocks the line of sight from the inlet to the auxiliary ventilation port. The underfloor ventilation structure according to item 1. The foundation that forms the underfloor space of the building and
A storage unit that is provided adjacent to the entrance of the building and is ventilated to the entrance through the entrance.
A ventilation portion formed on the storage portion wall constituting the storage portion and capable of ventilating from the storage portion to the underfloor space, and a ventilation portion.
A door that opens and closes the entrance on the entrance side of the storage unit,
As ventable space is formed between the floor of the housing part and the door in the closed position of the door, have a, a lower hanging hung movably the door opening and closing direction,
The vertical wall portion that separates the underfloor space from the other space is formed in a convex shape in a plan view.
Vents that allow ventilation to the underfloor space are formed in the vertical wall portions located in a pair of recesses bent inside the building on both sides of the convex protrusion in the direction of the building girder.
An exhaust portion that automatically exhausts air from the underfloor space to the outside is formed in a substantially intermediate portion in the building girder direction of the side wall forming the long side of the convex shape.
Underfloor ventilation structure. In the depth direction of the building or the frontage direction orthogonal to the depth direction, a doorway is provided on the side opposite to the entrance side.
On the foundation, a wall body for partitioning the space on the side of the kitchen and the space under the floor is provided.
The underfloor ventilation structure according to any one of claims 1 to 6, wherein a wall ventilation portion that allows ventilation from the space on the side of the kitchen to the underfloor space is formed on the wall body. The underfloor ventilation structure according to claim 7, wherein the distance from the ventilation portion to the exhaust portion is equal to the distance from the wall ventilation portion to the exhaust portion.

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