JP2006265824A - Ventilation tower for building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation tower for a building, capable of effectively imparting a cool feeling by ventilation, while avoiding intrusion of rainwater. <P>SOLUTION: This ventilation tower 10 for the building is composed of a body cylindrical part 20 having a hollow part 19 communicating with a ceiling exhaust port 18 opening on a ceiling surface 16 and projecting above a roof part 12, and a lateral stripe-shaped cylindrical part 22 continuously arranged in an upper end part of the body cylindrical part 20 and formed by laminating a frame member 21 annularly arranged along a cross-sectional shape of the body cylindrical part 20 at an interval. A top light member 23 is arranged inside the lateral stripe-shaped cylindrical part 22 for opening and closing the ventilation tower 20 by lifting between the upper end parts of the lateral stripe-shaped cylindrical part 22 from a state of blocking up an upper end opening 20a of the body cylindrical part 20. When opening the ventilation tower 10 by lifting the top light member 23, wind is made to go through in the lateral direction via an interval part 22a of the lateral stripe-shaped cylindrical part 22 between the body cylindrical parts 20 under the top light member 23. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a ventilation tower for buildings and a building provided with the ventilation tower.

  A building with 24-hour ventilation that uses power from a ventilator, etc. to ventilate the inside of the building because the inside and outside of the building are easily shut off as the building is highly insulated and airtight. Have been developed. Buildings aimed at improving ventilation and exhaust heat action by effectively using natural energy and reducing resource energy and power consumption have also been developed (for example, patent documents). 1). In the building of Patent Document 1, an exhaust heat tower is provided so as to protrude upward from the roof, and the air intake opening provided on the outer wall of the lower floor is utilized by utilizing the natural rise of warmed air. A flow path of air from the exhaust to the exhaust heat tower is formed, for example, heat accumulated in the room is exhausted together with air from the exhaust heat tower by natural convection.

In addition, when a chimney-shaped structural part such as a heat exhaust tower is provided in a building by projecting upward from the roof, as shown in FIGS. 7A and 7B, considering the design of the building, etc. In addition, a horizontal stripe-shaped cylindrical portion 51 having a louver structure is preferably attached as a blinding material to the upper part of the chimney main body 50, and an exhaust port 52 is opened inside the horizontal stripe-shaped cylindrical portion 51, and an interval portion of the louver structure is provided. Generally, a structure that exhausts air accompanied by exhaust heat is adopted. Further, in order to avoid the intrusion of rainwater or the like into the room through the exhaust port 52, a top surface portion 53 is provided so as to cover the upper side of the horizontal striped tubular part 51, and the exhaust port 52 is opened in the horizontal direction and discharged. A device has been devised to open the exhaust port 52 with an opening area suitable for discharging air accompanied by heat.
JP 2004-285705 A

  However, according to the waste heat tower as the chimney-shaped structure portion provided with the above-mentioned conventional horizontal stripe-like cylindrical portion 51, the air with exhaust heat sent from the indoor by natural convection is discharged. Since it is intended for ventilation, the amount of air passing through it is very small.For example, it is difficult to smoothly discharge a sufficient amount of air enough to generate a sensitive airflow indoors that lowers the sensible temperature. is there. Therefore, in highly insulated and airtight buildings, for example, when the indoor temperature on the top floor rises once due to solar radiation, and the increased temperature is difficult to decrease, natural energy is used without using an air conditioner or the like. Therefore, it is difficult to effectively obtain a cool feeling by ventilation. In addition, it may be possible to increase the area of the exhaust port to increase the amount of air discharged from the chimney-shaped structure, but it is easy for rainwater to enter the indoors from the exhaust port during rainy weather, etc. Even if the area of the mouth is increased, it is difficult to ensure sufficient ventilation unless the air volume due to natural convection generated indoors increases.

  The present invention has been made by paying attention to such a conventional problem, and enables to obtain a considerable amount of ventilation while avoiding the intrusion of rainwater, and also in the summer, it is highly insulated and highly airtight. An object of the present invention is to provide a ventilation tower for buildings and a building provided with the ventilation tower which can effectively give a cool feeling by ventilation to the indoors on the top floor of the building.

  The present invention includes a hollow portion that communicates with a ceiling exhaust opening that opens in a ceiling surface of a building (a detached house, a store-use housing, an apartment house, etc.) and projects upward from the roof portion of the building. A plurality of frame members arranged in an annular shape along the cross-sectional shape of the main body cylindrical portion and arranged at intervals in the vertical direction. A ventilation tower for buildings consisting of a horizontal striped cylindrical portion formed by the inner side of the horizontal striped cylindrical portion, installed at the upper end of the main body cylindrical portion, A toplight member that opens and closes the ventilation tower by moving up and down between the upper end portion of the horizontal striped cylindrical portion from a state in which the upper end opening is closed is provided, and the toplight member is raised to raise the ventilation tower Between the main body cylindrical portion below the top light member, By providing a building ventilation tower to the wind escapes laterally through the spacing portion of the serial horizontal stripe tubular portion is obtained by achieving the above object.

  According to the ventilation tower for a building of the present invention, the frame member arranged in an annular shape along the cross-sectional shape of the main body cylindrical portion is made of a blade, and the horizontal stripe-shaped cylindrical portion has a louver structure. Is preferred.

  Moreover, according to the ventilation tower for buildings of the present invention, when the top light member rises to the top of the horizontal striped cylindrical portion, the top surface thereof is in close contact with the inner peripheral edge of the horizontal striped cylindrical portion. It is preferable that they come into contact with each other.

  And this invention achieves the said objective by providing the building provided with the ventilation tower for said buildings in communication with the ceiling exhaust port opened to a ceiling surface.

  According to the building of the present invention, it is preferable that the ceiling exhaust port is opened in the ceiling surface of the blow-off portion, and the building ventilation tower is disposed immediately above the blow-off portion.

  Moreover, according to the building of this invention, it is preferable that the said ventilation tower for buildings is provided above the stairs, and illuminates the stairs through the said top light member.

  According to the building ventilation tower of the present invention and the building provided with the ventilation tower, it is possible to obtain a considerable amount of ventilation while avoiding the intrusion of rainwater. A cool feeling by ventilation can be effectively given indoors on the top floor of the building.

  As shown in FIGS. 1A to 1C, a building aeration tower 10 is provided so as to protrude upward from a roof portion 12 of a two-story building 11, for example. While avoiding rainwater intrusion at the time, it is possible to generate a considerable amount of ventilation indoors from the inside of the building 11 to the outside as needed.

  Here, according to the present embodiment, as shown in FIG. 1C, the first floor portion 13 of the building 11 includes an entrance 13a, an entrance hall 13b, a Japanese-style room 13c, a bathroom 13d, a washroom 13e, and a kitchen 13f. A living dining room 13g and the like are provided. The living dining room 13g is provided with a lift for the staircase 14 leading to the upper floor. Further, the corner area of the living dining room 13g including the staircase 14 located substantially in the center of the first floor portion 13 has a hollow portion 17 that is a space reaching the ceiling surface 16 (see FIG. 2) of the second floor portion 15. It has become.

  On the other hand, as shown in FIG. 1 (b), the second floor portion 15 of the building 11 is arranged around a second floor hall 15a that is continuous with the lift of the stairs 14, and has three child rooms 15b and 15c. 15d, a bedroom 15f with a walk-in closet 15e, a washroom 15g, etc. are provided, and a balcony 15h is provided outside the bedroom 15f.

  Further, according to the present embodiment, in order to exhaust indoor air through the building ventilation tower 10, the ceiling is provided in the ceiling surface 16 of the second floor portion 15 so as to communicate with the ventilation tower 10. The exhaust port 18 (see FIG. 2) is formed in the ceiling surface 16 of the atrium portion 17, and the building ventilation tower 10 is provided immediately above the atrium portion 17. Furthermore, the ventilation tower 10 for buildings is provided above the staircase 14 disposed in the atrium 17 and can illuminate the staircase 14 through the top light member 23.

  And the ventilation tower 10 for buildings of this embodiment equips the inside with the hollow part 19 connected to the ceiling exhaust port 18 opened to the ceiling surface 16 of the building 11, as shown in FIG.2 and FIG.3, and is built. The main body cylindrical portion 20 projecting upward from the roof portion 12 of the object 11 and the upper end portion of the main body cylindrical portion 20 are arranged continuously and arranged in an annular shape along the cross-sectional shape of the main body cylindrical portion 20. The horizontal striped cylindrical portion 22 is formed by laminating a plurality of frame members 21 with a space in the vertical direction, and is installed at the upper end of the main body cylindrical portion 20 inside the horizontal striped cylindrical portion 22. A top light member 23 that opens and closes the ventilation tower 10 by moving up and down from the upper end portion of the horizontal striped cylindrical portion 22 from the state in which the upper end opening 19a of the main body cylindrical portion 20 is closed is provided. When the light member 23 is raised and the ventilation tower 10 is opened, the top Between the lower main cylindrical portion 20 of the light member 23, so that the wind escapes laterally through the spacing portion 22a of the horizontal stripe tubular portion 22 (see FIG. 6).

  Further, according to the present embodiment, the frame member 21 arranged in an annular shape along the cross-sectional shape of the main body cylindrical portion 20 is made of a blade, and the horizontal striped cylindrical portion 22 has a louver structure or a louver structure. Yes.

  According to this embodiment, the main body cylindrical portion 20 of the building aeration tower 10 preferably has a square cross-sectional shape with an inner dimension of about 450 to 1500 mm in length, and the side walls surrounding the four sides are For example, a heat insulating material 20c made of high-performance glass wool is disposed between an inner face plate 20a made of a gypsum board and an outer face plate 20b made of a multi-balance wall panel, and has a thickness of about 150 to 250 mm. Yes. Also, the main body cylindrical portion 20 is provided so as to surround the ceiling exhaust port 18 so as to stand upward from the ceiling panel 24 that constitutes the ceiling surface 16 of the second floor portion 15, penetrates the roof portion 12, and projects upward therefrom. It is attached. Further, a cap 20 d serving as a support for the horizontal striped cylindrical portion 22 and the top light member 23 is attached to the upper end portion of the main body cylindrical portion 20. Further, a moisture permeable waterproof sheet is laid on the portion of the main body cylindrical portion 20 that protrudes from the roof portion 12 so as to cover the outer surface plate 20b, and a siding 20e is attached with a vertical trunk edge interposed therebetween.

  The horizontal striped cylindrical portion 22 arranged continuously at the upper end portion of the main body cylindrical portion 20 has a frame member 21 formed by forming a blade in a square ring shape as a shape along the cross-sectional shape of the main body cylindrical portion 20. For example, it is formed by stacking and arranging a plurality of pieces (four in the present embodiment) integrally while supporting the interval portion 22a while being supported by frame support brackets arranged at the four corners inside the frame. Yes. Further, the horizontal striped cylindrical portion 22 is fixed to the headboard 20d at the upper end of the main body cylindrical portion 20 through, for example, the base portion of the support metal fitting, and has a height of, for example, about 150 to 500 mm so as not to be blown away by the wind. It is firmly attached. The upper end surface 22b of the horizontal striped cylindrical portion 22 is preferably an open surface so as not to interfere with the lighting through the top light member 23 attached inside, but the upper surface of the uppermost frame member 21 It is possible to close the upper end surface 22b by attaching a transparent glass or the like having translucency, thereby preventing the intrusion of rainwater through the ventilation tower 10 when the top light member 23 is raised or lowered more effectively. It becomes possible.

  As the top light member 23 provided on the inner side of the horizontal striped cylindrical portion 22, various known commercial products can be used as the top light provided on the skylight of the building. According to the present embodiment, as shown in FIG. 4, the top light member 23 includes a fixed frame 23 a having a rectangular frame shape that can be placed and fixed on the upper end surface of the main body cylindrical portion 20, and an X leg. The top light body 23c is attached to the fixed frame 23a so as to be movable up and down with respect to the fixed frame 23a. The top light main body 23c is configured by fitting a flat and transparent tempered glass 23e, preferably vertically, into the inside of an elevating frame 23d having a rectangular frame shape. Then, for example, by remote operation from the inside, the top light body 23c is moved up and down with respect to the fixed frame 23a while changing the crossing angle of the X legs 23b, and the lift frame 23d is brought into close contact with the fixed frame 23a. The upper end opening 19a is opened from the state in which the upper end opening 19a of the main body cylindrical portion 20 is closed (see the broken lines in FIGS. 2 and 3), and the lifting frame 23d is in close contact with the inner surface of the upper end portion of the horizontal striped cylindrical portion 22. Until then, the top light main body 23c can be moved up and down.

  Further, according to the present embodiment, the water stop packing 25 that is continuous in a square ring shape is attached to the upper surface of the lifting frame 23d along the upper surface. On the other hand, an overhanging contact portion 21a is provided on the frame member 21 made of a blade located at the uppermost stage of the horizontal striped tubular portion 22 by projecting the inner peripheral edge of the upper end thereof inward (FIG. 3). reference). When the toplight main body 23c of the toplight member 23 is raised to the uppermost part of the horizontal striped tubular part 22, the upper surface of the elevating frame 23d is brought into contact with the uppermost frame member 21 through the water-stopping packing 25. Even when the upper end surface 22b of the horizontal striped cylindrical portion 22 is used as an opening surface by closely contacting the inner peripheral edge of the portion 21a, the upper end surface of the horizontal striped cylindrical portion 22 is firmly closed by closing the opening surface. It is possible to effectively avoid rainwater and the like from entering the main body cylindrical portion 20 from 22b.

  Note that the top light main body 23c is not necessarily formed in a flat shape. For example, as shown in FIGS. 5A to 5C, various three-dimensional shapes such as a pyramid shape, a dome shape, and a dormitory roof shape can be used. It can also be formed into a shape.

  And according to the ventilation tower 10 for a building of this embodiment which has the above-mentioned structure, while avoiding invasion of rainwater, it becomes possible to obtain a considerable amount of ventilation as needed, and especially in summer. It is possible to effectively give a cool feeling by ventilation to the interior of the top floor of a highly heat-insulated and air-tight building.

  That is, according to the present embodiment, the horizontal striped cylindrical portion 22 formed by laminating the frame members 21 at intervals in the vertical direction is continuously arranged at the upper end portion of the main body cylindrical portion 20. The ventilation tower 10 exhibits an excellent aesthetic appearance as a structural portion protruding above the roof portion 12. Further, the top light main body portion 23c of the top light member 23 arranged inside the horizontal stripe-shaped cylindrical portion 22 is lifted and lowered in a vertical opening / closing manner, for example, by the top light main body portion 23c at the upper end of the main body cylindrical portion 20 in rainy weather. By closing the opening 19a, intrusion of rainwater can be easily avoided. Further, when the weather is fine, the toplight body 23c of the toplight member 23 is preferably raised to the upper end of the horizontal striped tubular portion 22 to open the ventilation tower 10, and as shown in FIG. It is possible to allow the wind to escape in the lateral direction between the main body cylindrical portion 20 below the main body portion 23c via the spacing portion 22a of the horizontal striped cylindrical portion 22, and thus the top Due to the chimney effect when the wind passes laterally below the light main body portion 23 c, the indoor air is sucked and a considerable amount of air is discharged to the outside through the ventilation tower 10. This makes it possible to generate a considerable amount of ventilation that can provide a cool sensation indoors, and especially in the summer, the ventilation on the top floor of a highly insulated and airtight building without relying on an air conditioner. It is possible to effectively impart a cool feeling. In addition, since the top light member 23 has high heat insulation and high airtight specifications, the high heat insulation and high airtightness of the building 11 are maintained by always closing in the winter.

  Moreover, according to the building 11 of this embodiment, since the ventilation tower 10 for buildings is provided just above the blow-off part 17, the chimney effect at the time of a wind passing through the lower direction of the top light main-body part 23c laterally. As a result, the indoor air can be sucked more efficiently, and the ventilation tower 10 including the toplight member 23 is provided directly above or near the top of the staircase 14. It is possible to effectively shine light on the stairs. Further, for example, by closing the ventilation tower 10 with the top light member 23 in winter, it is possible to suppress heat loss to the outside.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the main body cylindrical portion and the horizontal striped cylindrical portion of the ventilation tower do not necessarily have a square cross-sectional shape, and may be a ventilation tower having other cross-sectional shapes such as a circular shape and a hexagonal shape. In addition, the horizontal striped cylindrical portion does not necessarily have a louver structure or a galley structure, and the frame member constituting the horizontal striped cylindrical portion is, for example, a hollow rectangular cross-section rod-shaped member or belt-shaped member in addition to the blades. A flat plate or the like can be formed into a frame shape to form a frame member.

The building provided with the ventilation tower for buildings which concerns on preferable one Embodiment of this invention is illustrated, (a) is a front view, (b) is a floor plan of 2 floors, (c) is a floor plan of 1 floor. . It is sectional drawing which shows the ventilation tower for buildings which concerns on preferable one Embodiment of this invention. It is a partially broken side view which shows the principal part of the ventilation tower for buildings which concerns on preferable one Embodiment of this invention. It is a perspective view of the toplight member attached to the ventilation tower for buildings concerning one desirable embodiment of the present invention. (A)-(c) is a perspective view which illustrates the other form of a toplight member. It is explanatory drawing of the state which open | released the ventilation tower and was made to wind in the horizontal direction through the space | interval part of a horizontal striped cylindrical part between a toplight member and a main body cylindrical part. A conventional chimney-shaped structural portion provided protruding from the roof will be described. (A) is a partial front view of a building, and (b) is a cross-sectional view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Building ventilation tower 11 Building 12 Roof part 13 First floor part 14 Stairs 15 Second floor part 16 Ceiling surface 17 of second floor part Blow part 18 Ceiling exhaust port 19 Hollow part 19a of main body cylindrical part of main body cylindrical part Upper end opening 20 Main body cylindrical portion 21 Frame member 22 Horizontal stripe cylindrical portion 22a Spacing portion 23 of horizontal stripe cylindrical portion Top light member 23a Fixed frame 23b X leg portion 23c Top light main body portion 23d Lifting frame 23e Tempered glass 25 Water stop Packing

Claims (6)

A hollow portion that communicates with a ceiling exhaust opening that opens on the ceiling surface of the building is provided inside, and a main body cylindrical portion that protrudes upward from the roof portion of the building, and an upper end portion of the main body cylindrical portion. Ventilation tower for buildings comprising a horizontally striped cylindrical portion formed by laminating a plurality of frame members arranged in an annular shape along the cross-sectional shape of the main body cylindrical portion at intervals in the vertical direction Because
From the state where the upper end opening of the main body cylindrical portion is closed at the upper end portion of the main body cylindrical portion inside the horizontal striped cylindrical portion, between the upper end portion of the horizontal striped cylindrical portion. There is provided a top light member that moves up and down to open and close the ventilation tower, and when the top light member is raised to open the ventilation tower, the top light member is spaced from the main body cylindrical portion below the top light member. And the ventilation tower for buildings which let the wind escape in the horizontal direction through the space | interval part of the said horizontal striped cylindrical part.   The ventilation tower for buildings according to claim 1, wherein a frame member arranged in an annular shape along a cross-sectional shape of the main body cylindrical portion is formed of a blade, and the horizontal striped cylindrical portion has a louver structure.   The ventilation of a building according to claim 1 or 2, wherein when the top light member rises to the uppermost part of the horizontal striped tubular part, the top surface thereof is in close contact with the inner peripheral edge of the horizontal striped tubular part. Tower.   The building in which the ventilation tower for buildings according to any one of items 1 to 3 is provided in communication with a ceiling exhaust opening that opens in the ceiling surface.   5. The building according to claim 4, wherein the ceiling exhaust port is open to a ceiling surface of the atrium portion, and the building ventilation tower according to any one of claims 1 to 3 is provided immediately above the atrium portion. object. The building according to any one of claims 1 to 3, wherein the building ventilation tower according to any one of claims 1 to 3 is provided above the stairs, and the stairs are illuminated with light through the top light member. .

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