JP6797530B2 - Parapet ventilation structure and ventilation fittings - Google Patents

Description

The present invention relates to a ventilation structure in a parapet used for a rooftop of a building, an outer wall of a veranda, etc., and a cap tree attached to an upper end portion, and a ventilation fitting used for the ventilation structure.

Conventionally, as a ventilation structure of a parapet portion which is erected on the peripheral edge of a rooftop such as a roof or a roof balcony and has a cap tree attached to the upper end, Patent Document 1 (Japanese Unexamined Patent Publication No. 2012-102486) and Patent Document 2 (Japanese Patent Laid-Open No. 2012-102486) are provided. It is illustrated in Kai 2014-31709) and the like.

The ventilation structure described in Patent Document 1 is an exterior material provided via a cap tree provided on the upper surface of a pillar body arranged at a predetermined interval and a vertical furring strip arranged on the side surface at a predetermined interval. And, it is equipped with a ventilation fitting fixed to the cap tree so that the indoor air of the parapet part can be exhausted. Here, the ventilation fitting is configured by bending a metal plate, and includes a horizontal plate protruding from the upper surface of the cap tree to the vertical furring strip and a box-shaped portion located on the outer layer side of the vertical furring strip. The structure is provided with an opening for ventilation in the part.

In this ventilation structure, since the gap of the vertical furring strip communicates with the outside air by the opening of the box-shaped portion located on the side of the vertical furring strip, the indoor air of the parapet portion can be discharged.

Further, the ventilation structure described in Patent Document 2 includes an exterior material provided on the side surface of the parapet portion main body via a vertical furring strip arranged at a predetermined interval, and a ventilation fitting arranged above the exterior material. To be equipped. The ventilation fitting is formed by bending a metal plate, and a fixing plate portion arranged along the side surface of the vertical furring strip is fixed to the parapet portion main body by a nail. Further, the openings for ventilation are provided on the upper surface and the front plate portion, and the upper end gap of the vertical furring strip has a structure to ventilate the outside air through the openings provided on the upper surface and the front surface of the ventilation fitting.

Japanese Unexamined Patent Publication No. 2012-102486 Japanese Unexamined Patent Publication No. 2014-31709

However, each of the ventilation structures described in the above patent documents has the following problems. In the ventilation structure of Patent Document 1, since the side surface of the vertical furring strip is open at the position where the ventilation fitting of the vertical furring strip is provided, it is easy to secure an effective opening area and the efficiency of ventilation with the outside air is good. However, when rainwater or the like infiltrates through the ventilation fittings, there is a problem that it reaches the side surface of the vertical furring strip and the inner wall of the parapet portion gets wet. In order to solve this problem, in the ventilation structure of Patent Document 1, a shielding plate and a rising plate having a burrs at the upper ends are provided in the ventilation fittings to prevent rainwater from entering, but at a position facing the vertical furring strip. As long as the opening is provided, complete waterproofing is impossible.

On the other hand, in the ventilation structure of Patent Document 2, since the side surface of the vertical furring strip is covered with the fixing plate portion, the intrusion of rainwater into the main body of the parapet portion is prevented. However, since the ventilation path between the parapet portion main body and the outside air is only the gap on the upper side of the vertical furring strip, there is a problem that the effective opening area is small and the ventilation volume is small.

Therefore, the technical problem to be solved by the present invention is a parapet portion ventilation structure capable of securing a large effective opening area and preventing water from entering the inner wall, and ventilation used for the ventilation structure. It is to provide metal fittings.

The present invention provides a parapet ventilation structure having the following configuration in order to solve the above technical problems.

According to the first aspect of the present invention, a ventilation path is provided between the inner wall of the parapet portion and the exterior material, and the ventilation portion is provided with a ventilation opening above the exterior material and is fixed to the upper surface of the inner wall. In a parapet ventilation structure that has a ventilation fitting and allows the ventilation path and the outside air to communicate with each other through the ventilation fitting.
The ventilation fitting is formed by bending a metal plate, and includes a baffle plate that hangs down from above the ventilation path to prevent water from reaching the surface of the inner wall.
The baffle plate provides a parapet ventilation structure characterized in that the outer wall side surface is obliquely configured and the outer wall side surface has a vent.

According to the second aspect of the present invention, the ventilation path is formed by vertical furring strips arranged at predetermined intervals on the outer surface of the inner wall of the parapet portion.
The vertical furring strip is provided lower than the inner wall.
The baffle plate provides the parapet ventilation structure of the first aspect, characterized in that the lower end is close to the upper surface of the vertical furring strip.

According to the third aspect of the present invention, the side surface of the outer wall of the baffle plate is inclined so that the separation distance becomes larger toward the upper side, and the vent is continuous with the ventilation opening provided in the ventilation portion. The first or second aspect of the parapet ventilation structure is provided.

According to a fourth aspect of the present invention, the ventilation portion is characterized in that the cross section is formed in a substantially U shape, the ventilation openings are provided on the outer and inner side walls, and a shielding plate is provided on the inner side. A parapet ventilation structure according to any one of the first to third aspects is provided.

According to the fifth aspect of the present invention, a ventilation path is provided between the inner wall of the parapet portion and the exterior material, and the ventilation path is used for a parapet ventilation structure in which the outside air communicates with each other, and is fixed to the upper surface of the inner wall. It ’s a ventilation fitting,
A fixing portion fixed to the upper surface of the inner wall and
A ventilation section arranged above the exterior material and having a ventilation opening,
It is configured by bending a metal plate so as to hang down from the fixed portion, and is provided with an obstructing plate that prevents water from reaching the surface of the inner wall.
The baffle plate provides a ventilation fitting characterized in that the side surface of the outer wall is formed obliquely and the side surface of the outer wall has a vent.

According to the sixth aspect of the present invention, the side surface of the outer wall of the baffle plate is inclined so that the separation distance becomes larger toward the upper side, and the vent is continuous with the ventilation opening provided in the ventilation portion. A fifth aspect of the ventilation fitting is provided.

According to a sixth aspect of the present invention, the ventilation unit in cross section is configured to shape the substantially U, the outer opening and the inner opening is provided on the outer and inner walls, in that it comprises inside the shield The ventilation fitting of the 4th or 5th aspect which is characterized is provided.

According to the present invention, since the baffle plate is provided so as to hang down from above the ventilation path provided between the inner wall and the exterior material, it is possible to block the arrival of moisture to the inner wall. In addition, the baffle plate, which is made by bending a metal plate, has an oblique outer wall side surface in order to reduce processing accuracy and labor, and prevents the effective opening area from being reduced by the diagonally formed outer wall side surface. In order to do so, a vent is provided on the side surface of the outer wall. Therefore, a large effective opening area can be secured, and water can be prevented from entering the inner wall.

Further, by providing the vertical furring strip lower than the inner wall and providing the ventilation fitting so as to approach the upper surface of the vertical furring strip provided lower, it is possible to prevent moisture from reaching the inner wall side of the vertical furring strip. it can.

In addition, the inclination of the side surface of the outer wall should be such that the separation distance becomes larger toward the upper side of the baffle plate, and the ventilation port should be continuous with the ventilation opening provided in the ventilation portion so that the opening to the baffle plate can be easily provided. And the effective opening area can be increased.

Further, by providing a shielding plate in the ventilation section, it is possible to reduce the amount of water passing through the ventilation section.

It is sectional drawing which shows the structure of the parapet part which concerns on embodiment of this invention. It is a perspective view which shows typically the structure of the parapet part main body of the parapet part of FIG. It is an assembly exploded view of the parapet part of FIG. It is a perspective view which shows the structure of the ventilation metal fitting used for the parapet part of FIG. It is a rear view of the ventilation fitting of FIG. It is a bottom view of the ventilation fitting of FIG. It is a partially enlarged sectional view which shows the structure of the ventilation part of the ventilation metal fitting of FIG. It is a partially enlarged exploded view which shows the structure of the ventilation part of the ventilation metal fitting of FIG. It is a figure which shows typically the manufacturing process of the baffle plate of the ventilation metal fitting of FIG. 4, (a) is a figure which shows the state before bending, (b) is a figure which shows the state after bending.

Hereinafter, the ventilation structure of the parapet portion according to the embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing the configuration of the parapet portion according to the present embodiment. As shown in FIG. 1, in the parapet portion according to the present embodiment, a ventilation unit 3 is attached to the upper surface of the wall-shaped parapet portion main body 2, and the air inside the parapet portion main body 2 is communicated with the outside air to ventilate. is there.

The parapet unit 1 is used as an outer wall of a building rooftop or a veranda, has a predetermined height, and has a ventilation unit that functions as a handrail mounted on the parapet unit 1. The ventilation structure of the parapet part 1 ventilates the air inside the parapet part main body 2 with the outside air, but when the parapet part main body 2 is arranged in connection with the outer wall of the building, the inside of the parapet part main body 2 In addition to the air inside the building, the air inside the outer wall of the building can be ventilated.

As shown in FIG. 2, the parapet portion main body 2 includes vertical furring strips 5 arranged on both side surfaces of the inner wall member 4 at predetermined intervals, and the vertical furring strip 5 is provided with an exterior material 6. A cap tree base material 7 is provided above the inner wall member 4.

The inner wall member 4 may be a hollow tubular member, or may have a configuration in which pillar members are arranged at predetermined intervals and panels are arranged around the pillar members. The wall 4p of the inner wall member 4 is provided with a ventilation hole 4h for communicating the inner space 4a with the outside of the wall 4p, and as shown by an arrow 91, the inner space 4a and the outer ventilation path 9 of the inner wall member 4 can be ventilated. It is configured in.

The vertical furring strips 5 are arranged parallel to each other on both side surfaces of the inner wall member 4 at predetermined intervals w. The distance w between the vertical furring strips 5 is not particularly limited, but the ventilation path 9 is a space that can firmly support the exterior material 6 and is surrounded by the vertical furring strip 5 and the exterior material 6. It is preferable that a sufficient passage area can be secured.

Further, the thickness dimension of the vertical furring strip 5 may be determined according to the dimension of the baffle plate 16 of the ventilation fitting 10 described later, and is set to 15 mm in the present embodiment.

The upper surface 5u of the vertical furring strip 5 is configured to be lower than the upper surface of the cap tree base material 7 of the inner wall member. It is preferable that the steps h1 on both sides are substantially equal to the dimensions of the baffle plate 16 of the ventilation fitting 10 described later.

The exterior material 6 is arranged on the surface of the vertical furring strip 5 via the joiner 8. The joiner 8 is a long metal object having the same cross section in the length direction, and is a hook arranged on a plate portion 8a interposed between the vertical furring strip 5 and the exterior material 6 and an upper surface 6u of the exterior material 6. A part 8b is provided.

The upper surface 6u of the exterior material 6 is lower than the upper surface 5u of the vertical furring strip 5, and the step h2 is preferably configured to be larger than the height dimension of the ventilation portion 15 of the ventilation fitting 10 described later. ..

Further, the thickness dimension of the exterior material 6 may be determined according to the dimension of the ventilation portion 15 of the ventilation fitting 10 described later, and is approximately 20 mm in the present embodiment.

FIG. 3 is an assembled exploded view of the parapet portion of the present embodiment. As shown in FIGS. 1 and 3, the ventilation unit 3 includes a ventilation fitting 10, a waterproof tape 11, a cover mounting member 12, and a Kasagi cover 13.

FIG. 4 is a perspective view showing the configuration of a ventilation fitting used in the parapet portion ventilation structure of the present embodiment. FIG. 5 is a rear view of the ventilation fitting, and FIG. 6 is a bottom view of the ventilation fitting. 5 and 6 show a state in which the ventilation fitting 10 shown on the left side of the drawing is viewed from the direction of the arrow.

As shown in FIGS. 4 and 5, the ventilation fitting 10 is a long member, is fixed to the upper surface of the Kasagi base material 7, and is arranged so as to project above the vertical furring strip 5 and the exterior material 6. .. The length dimension of the ventilation fitting 10 is appropriately determined by the length of the parapet portion main body 2 to be attached.

The ventilation fitting 10 is formed by laminating two metal plates bent into each shape on the upper and lower sides and caulking them together, and the fixing portion 14 fixed to the upper surface of the Kasagi base material 7 and the exterior material 6 The ventilation portion 15 located above the vertical furring strip 5 and the baffle plate 16 located above the vertical furring strip 5 are functionally roughly classified. As the metal material used for the ventilation fitting 10, for example, a stainless steel plate, a galvalume steel plate, or the like is preferably used.

The fixing portion 14 is formed in a flat plate shape and is arranged along the surface of the cap tree base material 7. The width dimension L1 of the fixing portion 14 is not particularly limited as long as it can secure a fixing margin that can be firmly fixed to the Kasagi base material 7 without rattling. However, as will be described later, since the waterproof tape 11 is used for the end portion 14a of the fixing portion 14 in order to prevent rainwater and the like from entering, the fixing portion end portions 14a of the left and right ventilation fittings 10 are brought close to each other. , It is preferable to configure it wide.

FIG. 7 is a partially enlarged cross-sectional view showing the configuration of the ventilation unit. FIG. 8 is a partially enlarged exploded view showing the configuration of the ventilation unit. The ventilation portion 15 includes an upper plate 14b continuous with the fixing portion 14, an external shielding plate 17, an upper horizontal plate 18, an external vertical plate 19, a lower horizontal plate 20, and an internal vertical plate 21. The shape is roughly U-shaped. The height dimension of the ventilation portion is preferably configured to be within a step between the upper end of the Kasagi base material 7 and the upper end of the exterior material 6, and is approximately 30 mm in the present embodiment.

When a gap is generated between the lower horizontal plate 20 of the ventilation portion 15 and the upper surface 6u of the exterior material 6, the gap can be filled with the sealing material 15a to prevent foreign matter from entering. Since the hook portion 8b of the joiner 8 is located in the gap, the filling work of the sealing material 15a can be facilitated.

The external shielding plate 17 is continuously provided on the upper plate 14b continuous with the fixing portion 14, extends in the vertical direction from the outermost position of the ventilation portion 15, and the lower end 17a is an open end. The external shielding plate 17 prevents moisture such as rainwater from directly blowing into the outer opening 22 of the upper horizontal plate 18. In the present embodiment, the upper horizontal plate 18 is not directly continuous with the external shielding plate 18, but extends horizontally from an intermediate position thereof, is bent by approximately 90 degrees, and is continuous with the external vertical plate 19.

The upper horizontal plate 18 and the outer vertical plate 19 are provided with outer openings 22 arranged so as to straddle the upper horizontal plate 18 and the outer vertical plate 19. A plurality of outer openings 22 are intermittently arranged in the length direction of the ventilation fitting 10.

Below the external vertical plate 19, a drain hole 23 for draining the water that has entered the ventilation portion 15 to the outside is provided.

The lower horizontal plate 20 is continuously provided by being bent 90 degrees or approximately 90 degrees from the lower end of the outer vertical plate 19. The length of the lower vertical plate 19 can be appropriately determined according to the thickness dimension of the exterior material 6.

The internal vertical plate 21 is continuous by bending the internal side end of the lower horizontal plate by approximately 90 degrees, and is further bent at an acute angle at the upper end to be continuous with the baffle plate 16. An inner opening 24 is provided above the inner vertical plate 21, and a plurality of inner openings 24 are intermittently arranged in the length direction of the ventilation fitting 10.

As shown by the arrow 92, the open region 9 and the outside air communicate with each other by the outer opening 22 and the inner opening 24 provided in the ventilation section 10, and the parapet section 1 can be ventilated.

A shielding plate 25 is provided in the ventilation unit 15. The shielding plate 25 is provided substantially parallel to the outer vertical plate 19 and the inner vertical plate 21 of the ventilation portion 15 and shields the outer opening 22 and the inner opening 24 from being linearly communicated with each other to ventilate moisture and the like. It is made difficult to enter the open area 9 by passing through the portion 15.

The baffle plate 16 is provided continuously with the internal vertical plate 21 of the ventilation portion 15 as described above, and is provided so as to extend downward from the upper plate 14b. The baffle plate 16 is formed by bending the lower end of one metal plate at an acute angle, and includes an outer side wall 16a and an inner side wall 16b.

The lower end 16c of the baffle plate 16 is located near the center in the thickness direction of the ventilation path 9, is very close to the upper surface 5u of the vertical furring strip 5, blocks moisture, and reaches the inner wall 6 or the cap tree base material 7. To prevent.

Since the outer side wall 16a of the baffle plate 16 is inclined and the inner side wall 16b is provided in the vertical direction, the separation distance between the outer side wall 16a and the inner side wall 16b becomes larger toward the upper side. By inclining the outer side wall 16a in this way, the manufacturing process of the baffle plate 16 produced by bending the metal plate becomes easy.

On the other hand, by making the outer side wall 16a slanted, the area 16d between the ventilation portion 15 and the baffle plate 16 becomes smaller, so that the effective opening area becomes smaller. In order to prevent this, in the present embodiment, the vent 26 is provided on the outer side wall 16a so that the effective opening area is increased.

The vent 26 is continuously provided with the inner opening 24 provided in the outer vertical plate 19. On the other hand, the inner side wall 16b has no opening to prevent moisture from entering the inner wall 7 side.

In the ventilation metal fitting 10, the metal plate is bent as shown in FIG. 8 in order to form the fixing portion 14, the ventilation portion 15, and the baffle plate 16, and the two metal plates that have been bent are joined by caulking or the like. It is created by fixing with. The inner opening 24 provided in the outer vertical plate 19 and the vent 26 provided in the outer side wall 16a are continuously provided as described above, and are provided in the metal plate as shown in FIG. It is created at once by bending a metal plate at the middle portion of the through hole 27 as shown by arrow 93. The ventilation fitting 10 can also be created by bending one metal plate. For example, it is also possible to use one metal plate with the end portion of 14a as the bent end portion.

As shown in FIGS. 1 and 3, one ventilation fitting 10 is arranged on each side surface of the parapet portion main body 2, and the ventilation fitting 10 is fixed to the surface of the cap tree base material 7 by using a fixing member 28a such as a nail.

After fixing the ventilation fitting 10, the waterproof tape 11 is attached so as to cover the end portion 14a of the fixing portion 14 of the two ventilation fittings 10, and then the cover mounting member 12 is fixed above the ventilation fitting 10. The cover mounting member 12 is fixed to the Kasagi base material 7 by using a screw 28 together with the ventilation fitting 10.

The cover mounting member 12 includes cover support portions 29 and 30 extending upward, and supports the Kasagi cover 13 from below.

Further, an engaging groove 31 that engages with the fixed arm 33 of the Kasagi cover 13 is provided at the outer root portion of the cover support portion 29.

The Kasagi cover 13 includes a cover main body 32 provided from the upper surface to the side surface of the parapet portion 1 to hide the ventilation fitting 10 and the like, and a fixed arm 33 extending downward from the lower surface of the cover main body 32. The cover main body 32 includes a horizontal portion 32a located on the upper surface of the parapet portion 1 and side portions 32b provided on both sides of the horizontal portion 32a. The side portion 32 extends to a position close to the upper end 6u of the exterior material 6, and the gap with the exterior material 6 serves as a ventilation path.

The fixed arm 33 is provided on the lower surface of the horizontal portion 32a of the cover member, and an engaging hook 34 is provided at the tip of the fixed arm 33 to engage with the engaging groove 31 of the cover mounting member 12. The Kasagi cover 13 is fixed to the cover mounting member 12.

As described above, according to the ventilation structure of the present embodiment, the vertical furring strip 5 is provided lower than the inner wall 7, and is obstructed so as to be in contact with the upper surface 5u of the vertical furring strip 5 provided lower than the inner wall 7. Since the plate 16 is provided, it is possible to prevent moisture from entering the inner wall 7. Further, in the baffle plate 16 formed by bending a metal plate, the outer wall side surface 16a is slanted in order to reduce the processing accuracy and labor, and the effective opening area of the diagonally formed outer wall side surface 16a is increased. In order to prevent the decrease, a vent 26 is provided on the side surface of the outer wall. Therefore, a large area 16d between the ventilation portion 15 and the baffle plate 16 can be secured, and water can be prevented from entering the inner wall.

The present invention is not limited to each of the above embodiments, and can be implemented in various other aspects. For example, in the present embodiment, the ventilation path formed between the inner wall and the exterior material is defined by the vertical furring strip, but the ventilation path may be provided by the horizontal furring strip, metal fittings, or the like.

Further, although the outer vertical plate 19 of the ventilation portion 15 and the outer side wall 16a of the baffle plate 16 are continuously formed, for example, a horizontal plate is provided between them to form the baffle plate 16 as a whole. The configuration may be moved to the edge 5 side. Further, the baffle plate 16 may be configured such that the lower end 16c is in contact with the upper surface 5u of the vertical furring strip 5, and the inner side wall 16b may also be inclined.

1 Parapet part 2 Parapet part body 3 Ventilation unit 4 Inner wall member 5 Vertical furring strip 5u Vertical furring strip upper surface 6 Exterior material 6u Exterior material front 7 Kasagi base material 8 Joiner 8a Plate part 8b Hedge part 9 Ventilation path 10 Ventilation tape 11 12 Cover mounting member 13 Kasagi cover 14 Fixing part 15 Ventilation part 15a Sealing material 16 Baffle plate 16a Outer side wall 16b Inner side wall 16c Binder plate lower end 17 External shielding plate 18 Upper horizontal plate 19 External vertical plate 20 Lower horizontal plate 21 Internal vertical plate 22 Outer opening 23 Drain hole 24 Inner opening 25 Shielding plate 26 Ventilation hole 27 Through hole 28 Screw 28a Fixing member 29,30 Cover support 31 Engagement groove 32 Cover body 33 Fixing arm 34 Engagement hook

Claims (6)

A ventilation path formed by vertical furring strips arranged at predetermined intervals on the outer surface of the inner wall of the parapet portion is provided between the inner wall of the parapet portion and the exterior material, and an outer opening and an inner opening are provided above the exterior material. In a parapet ventilation structure, the parapet ventilation structure is provided with a ventilation portion provided with, and has a ventilation fitting fixed to the upper surface of the inner wall, and the ventilation path and the outside air communicate with each other through the ventilation fitting.
The vertical furring strip is located lower than the inner opening.
The ventilation fitting is formed by bending a metal plate, and is provided with an obstructing plate on the inner wall side of the inner opening that hangs down from above the ventilation path to prevent water from reaching the surface of the inner wall.
The baffle plate includes an outer side wall and an inner side wall, has a lower end located above the vertical furring strip, and is obliquely configured to approach the inner wall as the outer side wall moves downward, and ventilates the outer side wall. A parapet ventilation structure characterized by having a mouth. The parapet ventilation structure according to claim 1, wherein the vent on the outer side wall is continuous with the inner opening provided in the ventilation portion. The ventilation unit is characterized in that the cross section is formed in a substantially U shape, the outer side opening and the inner side opening are provided on the outer side and the inner side wall, and a shielding plate is provided inside. Described parapet ventilation structure. A parapet ventilation structure in which a ventilation path formed by vertical furring strips arranged at predetermined intervals on the outer surface of the inner wall of the parapet portion is provided between the inner wall of the parapet portion and the exterior material, and the ventilation path and the outside air communicate with each other. It is a ventilation fitting used for and fixed to the upper surface of the inner wall.
A fixing portion fixed to the upper surface of the inner wall and
A ventilator located above the exterior material and having an outer opening and an inner opening,
A metal plate is bent so as to hang down from the fixed portion, and a hindrance plate for preventing water from reaching the surface of the inner wall is provided on the inner wall side of the inner opening.
The baffle plate includes an outer side wall and an inner side wall, has a lower end located above the vertical furring strip, and is formed obliquely so as to approach the inner wall as the outer side wall moves downward, and ventilates the outer side wall. Ventilation fittings, characterized by having a mouth. The ventilation fitting according to claim 4, wherein the ventilation port provided on the outer side wall is continuous with the inner opening provided in the ventilation portion. The ventilation unit in cross section is configured to shape the substantially U, provided the outer opening and the inner opening to the outer and inner walls, characterized in that it comprises the inside shield, to claim 4 or 5 Ventilation fittings listed.

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