JP2007031955A - Wooden house - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wooden house which is proof against an earthquake, excellent in ventilation performance, and exerts sufficient air-conditioning effect in a room by circulating air. <P>SOLUTION: The wooden house is formed of an inner wall 2 and an outer wall 3 erected on a sill 1, floor materials 6 laid on part of the sill 1, a first vent hole 8 formed of a groove formed in an upper surface of the sill 1, and a second vent hole 12 formed in a lower end of the inner wall 2. Thus the house has formed therein a first air passage A1 which allows an underfloor space 9 defined under the floor materials 6 to communicate via the first vent hole 8 with a cavity 11 between the inner and outer walls 2, 3, and a second air passage A2 which allows the cavity 11 between the inner and outer walls 2, 3 to communicate via the second vent hole 12 with an indoor space 13 above the floor materials 6. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wooden house, and more particularly to a ventilation structure of a wooden house.

As shown in FIG. 5, a conventional wooden house has a base 1 placed on a concrete foundation, and an inner wall 2 and an outer wall 3 are supported upright on the base 1 by pillars 4. A plurality of square members called joists 5 are stretched over a pair of bases 1 facing each other, and a floor material 6 is laid on the joists 5. According to this wooden house, a space is generated between the upper surface of the base 1 and the lower surface of the flooring 6 by the thickness of the joist 5, so that the underfloor space below the flooring 6 passes through this space to the inner wall 2 and the inner wall 3. An air passage upward from the space under the floor of the wooden house is secured.
JP 2004-60959 A

  However, in the conventional wooden house, since the flooring 6 was laid on the base 1 via the joists 5, there was a problem that the flooring 6 became unstable during earthquakes and was vulnerable to earthquakes. Moreover, although the ventilation path from the under floor space of a wooden house to the clearance gap between the inner wall 2 and the outer wall 3 is ensured, the ventilation path which passes through the interior is not formed, and the ventilation property of a wooden house is inadequate. There is also a problem that the indoor cooling and heating effect due to air circulation cannot be obtained sufficiently.

  Therefore, in order to solve the above-described problems, the wooden house of the present invention has an inner wall and an outer wall erected on a base or a beam, a floor material laid so as to hang on a part of the base or the beam, A first vent formed by a groove formed on an upper surface of the base; and a second vent opened at a lower end of the inner wall, and the underfloor space below the flooring is the first vent. A first air passage communicating with the gap between the inner wall and the outer wall through the second air passage, and a second air passage communicating with the space between the inner wall and the outer wall through the second air vent to the indoor space above the flooring. Is formed.

  According to the wooden house of the present invention, the first ventilation comprising the groove formed on the upper surface of the base or the beam while improving the seismic strength by laying the flooring directly on the base or the beam without using the joist. A first air passage communicating with the gap between the inner wall and the outer wall can be secured by the mouth. In addition, since the second ventilation path that communicates with the indoor space above the flooring material is formed through the second ventilation opening that is opened in the inner wall, the air permeability is significantly improved as compared with the conventional wooden house, The room can be sufficiently cooled and heated by air circulation.

  Next, a wooden house according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of this wooden house, and FIG. 2 is a perspective view showing a base or a beam portion. FIG. 3 is a partial cross-sectional view showing a first floor portion and a second floor portion of a wooden house.

  A floor formed by bonding a plywood 6A and a floor material 6B so that an inner wall 2 and an outer wall 3 are erected on a foundation 1 or a ceiling beam 10 on a concrete foundation and hang on a part of the foundation 1 or the beam 10. The material 6 is laid directly. A plurality of intermediate pillars 7 are erected on the upper surface of the base 1 or the beam 10 at a predetermined interval, and a first ventilation port 8 made of a groove cut out on the upper surface of the base 1 or the beam 10 between the adjacent intermediate pillars 7 is provided. Is formed.

  Since the upper part of the first ventilation hole 8 formed of the groove formed in the base 1 or the beam 10 is only covered by the floor plate 6, the first ventilation hole 8 is formed in the gap 11 between the inner wall 2 and the outer wall 3. As a result, a first air passage A <b> 1 is formed in which the underfloor space 9 below the floor material 6 communicates with the gap 11 between the inner wall 2 and the outer wall 3 through the first vent 8.

  Further, as shown in FIG. 3, a second vent 12 is opened at the lower end of the inner wall 2 of the first floor portion (a position slightly above the floor board 6), and a gap 11 between the inner wall 2 and the outer wall 3 is formed. A second air passage A <b> 2 that communicates with the indoor space 13 on the first floor above the flooring 6 is formed through the second air vent 12. A third vent 14 is opened at the upper end of the inner wall 2 of the first floor portion (a position slightly below the ceiling plate 22), and the gap 11 between the inner wall 2 and the outer wall 3 is the third vent 14. A third air passage A3 communicating with the indoor space 13 on the first floor is formed. Similarly, the second and third vent holes 12, 14 are formed in the second floor portion, and the second vent path A2 and the third vent path A3 are formed corresponding to these. The outer wall 3 is formed from the inside by bonding together a die light bearing wall 3A, a heat insulating material 3B, which also serves to ensure airtightness, a body edge (not shown), and a finishing material.

  Next, the overall ventilation structure of the wooden house of the present invention will be described with reference to FIG. As shown in FIG. 4A, in a wooden house in summer, an outside air introduction pipe 16 for introducing outside air into the underfloor space 9 is used for cooling. The outside air introduction pipe 16 is provided with an outside air introduction port 30 in the outer wall 3, is piped to the underfloor space 9 through the inner wall 2 and the floor plate 6, and is further partially embedded in the ground below the underfloor space 9. An outside air discharge port 31 of the introduction pipe 16 is directed above the underfloor space 9. The outside air inlet 30 is preferably provided on the north outer wall 3 at a height of 1 m to 1.5 m from the ground in order to take in as cool air as possible.

  The outside air taken into the outside air introduction pipe 16 is further cooled by the ground below the underfloor space 9 and introduced into the underfloor space 9. The outside air introduced into the underfloor space 9 is introduced into the gap 11 between the inner wall 2 and the outer wall 3 through the first air passage A1, and further introduced into the indoor space 13 on the first floor through the second air passage A2. Is done. The warm air that has filled the indoor space 13 before the outside air is introduced is discharged to the gap 11 between the inner wall 2 and the outer wall 3 through the third ventilation path A3. Then, the air from the indoor space 13 on the first floor and the outside air introduced into the gap 11 between the inner wall 2 and the outer wall 3 on the first floor are introduced into the indoor space 15 on the second floor. The The air in the indoor space 15 on the second floor is discharged to the gap 11 between the inner wall 2 and the outer wall 3 through the third ventilation path A3.

  And the air discharged | emitted to the clearance 11 between the inner wall 2 and the outer wall 3 of a 2nd-floor part raises to the attic space 17, and is discharged | emitted outside the wooden house through the exhaust pipe 18. FIG. The tip of the exhaust port 19 of the exhaust pipe 18 is preferably directed downward from the roof of the roof in order to prevent rain. Thus, according to the wooden house of the present invention, the cold outside air introduced into the underfloor space 9 by the outside air introduction pipe 16 passes through the first, second and third ventilation paths A1, A2 and A3, and reaches the first floor. The warm air in the indoor space 13 on the first floor and the indoor space 15 on the second floor is exhausted from the attic space 17 through the exhaust pipe 18 to the outside. Therefore, by continuing such ventilation, the indoor space 13 on the first floor and the indoor space 15 on the second floor can be efficiently cooled by outside air.

  The ventilation as described above is naturally performed by natural convection of air and contributes to low power consumption. However, in order to further promote the flow of air, the exhaust port 19 of the exhaust pipe 18 is electrically driven. It is desirable to install a fan.

  As shown in FIG. 4 (B), in the winter wooden house, the exhaust pipe 18 and the outside air introduction pipe 16 are not used. Instead, a supply / exhaust heat exchanger 21 is installed in the ceiling space on the first floor. Provide ventilation. Then, a heating device 20 such as an electric heater is installed in the underfloor space 9 for heating. The air in the underfloor space 9 heated by the heating device 20 is introduced into the indoor space 13 on the first floor and the indoor space 15 on the second floor through the first, second, and third ventilation paths A1, A2, and A3. Thus, the indoor space 13 on the first floor and the indoor space 15 on the second floor can be efficiently heated.

It is a top view of the wooden house which concerns on embodiment of this invention. It is a perspective view which shows the base or the part of a beam. It is a fragmentary sectional view which shows the 1st floor part and 2nd floor part of a wooden house. It is sectional drawing which shows the whole ventilation structure of the wooden house which concerns on embodiment of this invention. It is a top view of the conventional wooden house.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base 2 Inner wall 3 Outer wall 4 Column 5 joist 6 Floor board 7 Interstitial column 8 1st vent 9 Underfloor space 10 Beam 11 Gap between inner wall and outer wall 12 2nd vent 13 First floor indoor space 14 3rd vent 15 Indoor space 16 on the second floor Outdoor air introduction pipe 17 Attic space 18 Exhaust pipe 19 Exhaust port 20 Heating device 21 Supply / exhaust heat exchanger

Claims (3)

A first ventilation port comprising an inner wall and an outer wall erected on a base or a beam, a flooring laid so as to hang on a part of the base or the beam, and a groove formed on an upper surface of the base or the beam And a second vent opening opened at a lower end of the inner wall, and a first vent which communicates a space under the floor below the floor material to a gap between the inner wall and the outer wall through the first vent hole. A wooden house characterized in that a second ventilation path is formed in which a passage and a gap between the inner wall and the outer wall communicate with the indoor space above the flooring through the second ventilation hole. 2. The wooden structure according to claim 1, further comprising a third ventilation hole formed at an upper end of the inner wall, and a third ventilation path communicating from the indoor space to the gap between the inner wall and the outer wall. house. 2. The wooden house according to claim 1, further comprising an outside air introduction pipe that is piped from the outer wall to the underfloor space and is partially embedded in the ground below the underfloor space and introduces outside air into the underfloor space.

Images