JP2018150711A - Ventilation structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation structure which is provided on a roof ridge, surely prevents intrusion of rainwater, and can appropriately allow intrusion of wind.SOLUTION: The present invention is a ventilation structure disposed with respect to an opening part O provided in a roof ridge, and comprising an inner cover 1 mainly for cutting off water, and an outer cover 2 mainly for shielding wind. The inner cover 1 is provided with water cut-off walls 11, and an opening 10 communicating with an interior. The outer cover 2 covers the inner cover 1, and comprises opening holes 201 for exhaust formed below the opening 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a ventilation structure that is provided in a roof wing to reliably prevent the intrusion of rainwater and appropriately allow wind to enter.

A ventilation device provided in a building ridge needs to be considered “waterproof” in the case of wind, and has a structure that prevents or reduces the invasion of wind and the intrusion of rainwater.
Wind can be blown on the roof surface from various directions, but it is particularly important to take measures against rainwater blown from the eaves to the building.

  For example, in a ventilator described in Patent Document 1 or the like, a portal-type ventilation port, a mountain-shaped ventilation port, a bent-portion ventilation port, or the like is provided in the internal structure of the ventilation building, and a wind and rain intrusion path in the flow direction (gradient direction) This makes it difficult to blow.

Japanese Patent Publication No.7-84783

  However, in the ventilator of Patent Document 1, as described above, the intrusion route of wind and rain is prevented to prevent the blowing of wind and rain, but on the other hand, there is a problem that it is difficult for air to escape from the inside to the outside. It happened. In addition, in order to make the intrusion route complicated, there is also a problem that the processing of the member forming the intrusion route is complicated and the cost tends to be high.

  Therefore, an object of the present invention is to propose a ventilation structure that is provided in a roof wing and can reliably prevent the intrusion of rainwater and appropriately allow the invasion of wind.

The present invention has been proposed in view of the above, and is a ventilation structure including an inner cover mainly composed of waterstop and an outer cover mainly composed of windbreaks, which is disposed with respect to the open portion provided in the roof ridge. The inner cover has a water blocking wall and an opening communicating with the inside, and the outer cover covers the inner cover, and an exhaust opening hole is formed below the opening. It relates to the characteristic ventilation structure.
In addition, the opening part provided in a roof ridge refers to the upper end of the opening part connected to the internal space of a building, and as shown in the illustrated embodiment described later, the “opening part (10) of the inner cover”. This open part (O)) is located below in communication with "."

  The present invention also proposes a ventilation structure in which the opening hole of the outer cover is opened upward in the ventilation structure.

  Further, the present invention is characterized in that, in the ventilation structure, the outside air cover is provided with a plurality of ventilation protrusions, and the ventilation protrusions include a guide portion toward the upper end and an opening hole formed at the upper end. A ventilation structure is also proposed.

  The ventilation structure of the present invention is arranged for an open portion provided in a roof ridge, and includes an inner cover mainly for water stop and an outer cover mainly for windbreak, and is formed on the outer cover. The opening hole to be formed is formed below the opening of the inner cover, that is, the water blocking wall is formed higher than the opening hole, so that rainwater that has entered from the opening hole flows down reliably outside the water blocking wall. Without entering the inside (inside the opening), the wind can enter as appropriate, and the air can be easily released from the inside to the outside.

  In addition, when the opening hole of the outer cover is opened upward, it prevents rainwater from being mixed with the blowing wind from the eaves side and directly entering the opening hole, and the blowing air itself is difficult to directly enter the outer cover. Therefore, scattering of rainwater in the outer cover can be minimized.

  In addition, the outside air cover is provided with a plurality of ventilation convex portions, and when the ventilation convex portion is composed of a guide portion toward the upper end and an opening hole formed at the upper end, the above-described opening hole is formed in a slit shape. It can be easily formed by performing processing and pressing. And in this ventilation convex part, since the rain water which permeated from the opening hole is guide | induced downward by the guide part and flows down, it does not permeate in an internal cover.

It is a sectional side view which shows the ventilation structure of 1st Example of this invention. (A) Side sectional view showing the flow of air from the indoor side in the ventilation structure of the first embodiment, (b) Side cross section showing the flow of wind and rainwater from the outdoor side in the ventilation structure of the first embodiment. FIG. (A) It is a perspective view which shows the external cover used for 1st Example, (b) It is a perspective view which shows an internal cover. (A) The perspective view which shows the external cover used for 2nd Example, (b) It is a perspective view which shows an internal cover.

The ventilation structure of the present invention is a ventilation structure comprising an internal cover mainly for water stop and an external cover mainly for windbreak, which is disposed with respect to an open portion provided in a roof ridge, Has a water blocking wall and an opening communicating with the inside, and the outer cover covers the inner cover, and an opening hole for exhaust is formed below the opening.
The opening hole formed in the outer cover is formed below the opening part of the inner cover, that is, the water blocking wall is formed higher than the opening hole, so that rainwater that has entered from the opening hole can surely flow down outside the water blocking wall. The inside of the water blocking wall (inside the opening) is not permeated, the wind can be appropriately invaded, and the air can be easily released from the inside to the outside.

The inner cover that forms the ventilation structure is mainly water-stopping as described above, and has a specific configuration as long as it has a water-stopping wall and an opening communicating with the inside. The configuration other than is not limited.
This inner cover may be a single member or a plurality of members straddling the open portion. In the case of a single member, the opening is formed in the connecting portion (lateral surface portion) that connects the upper (upper end) of the left and right water blocking walls. What is necessary is just to form, and in the case of a plurality of members, the right and left water blocking walls may be formed as separate members, and the upper end of the facing interval between these water blocking walls may be the opening in the installed state.

The water blocking wall has a vertical surface shape that is continuous in the vertical direction, and prevents further intrusion of rainwater that has entered the inside of the outer cover.
Moreover, the said opening part is a site | part which can connect with the inside of a building and can discharge | emit the exhaust gas from the inside.

  By forming the water blocking wall higher, it is possible to prevent rainwater from entering the opening more reliably, but the lower end of the water blocking wall is formed continuously and extends outward from the lower end of the outer cover. It is preferable to provide a supporting surface portion. By arranging this support surface portion along the roof surface, even if rainwater enters the inside of the outer cover, it can be discharged from the support surface portion onto the roof surface along the outer surface side of the water blocking wall. it can.

The outer cover that forms the ventilation structure is mainly for windbreak as described above, and covers the inner cover, and if an exhaust opening hole is formed below the opening, The specific configuration and other configurations are not limited.
The outer cover may be a single member or a plurality of members as long as it covers the inner cover, but all the opening holes are located below the opening portions of the inner cover, so that they penetrated from the opening holes. Rainwater does not enter the opening.

  It is desirable that the exhaust opening hole is opened upward, preventing rainwater from being mixed into the blowing wind from the eaves side and directly entering the opening hole, and the blowing air itself directly into the outer cover. Since it becomes difficult to enter, the scattering of rainwater in the outer cover can be minimized. That is, by forming the opening hole so as to face upward, the inside of the outer cover is structured to be hardly affected by the wind. Note that it is desirable to provide a plurality of opening holes both in the height direction and in the length direction.

Preferably, the outer cover is provided with a plurality of ventilation protrusions, and the ventilation protrusions include a guide portion toward the upper end and an opening hole formed at the upper end. In this case, the shape in which the opening hole faces upward can be easily formed by performing slit processing and press processing. In addition, it is desirable to provide a large number of the opening holes (ventilation convex portions) as in the illustrated embodiment described later, and this processing is also desirable from this viewpoint.
Specifically, first, slitting is performed with a width corresponding to the opening hole. Next, press work is performed so that the male mold is pressed from the back side so that the formed slit is the upper end. By such processing, it is possible to easily form a ventilation convex portion having a shape in which the opening hole faces upward and the guide portion extends from the opening hole. And in each ventilation convex part, since the rain water which permeated from the opening hole contacts the guide part which protrudes on the surface side, and is guide | induced below, it does not permeate in an internal cover.

  The lower end of such an outer cover may be anything as long as it does not prevent rainwater flowing down along the outer surface side of the water blocking wall of the inner cover from being drained from the support surface portion onto the roof surface. The specific configuration is not limited. For example, as shown in the illustrated embodiment to be described later, it is only necessary that the lower end is disposed above the support surface part with a slight gap.

The inner cover and the outer cover are preferably connected via a support member so as to be disposed at a predetermined interval.
The support member is fixed along the outer surface side of the inner cover and supports along the inner surface of the outer cover, and includes an interval forming member for forming a predetermined interval as described above. I also serve.

  The ventilating structure of the present invention configured as described above forms the water blocking wall higher than the opening hole as described above, so that the rainwater that has entered from the opening hole flows down reliably outside the water blocking wall. The inside of the inside (inside the opening) is not permeated, the wind can enter as appropriate, and the air can be easily released from the inside to the outside.

  As a roof building to which the ventilation structure of the present invention is applied, the roof itself is not limited in any way as long as it has an open space at the top of the building, even if it is a known roof such as tile, slate, metal, Even if it has rain performance as a roof on the back side of the solar cell, the specification is not questioned, and a waterproof layer made of a waterproof sheet such as polyvinyl chloride may be used. Also, the roof type may be any of a horizontal shape, a vertical shape (a tiled rod shape, a smooth shape, etc.), a folded plate, and the like.

The ventilation structure of the first embodiment of the present invention shown in FIG. 1 (a) is arranged with respect to the water stop as shown in FIG. 2 (b), which is arranged with respect to the open portion O provided in the roof wing. As shown in FIG. 2 (a), the cover 1 and the outer cover 2 mainly for windbreak are included.
The inner cover 1 has a water blocking wall 11 and an opening 10 communicating with the inside, and the outer cover 2 covers the inner cover 1 and has an exhaust opening 201 below the opening 10. To form.

As described above, the inner cover 1 is mainly used for water stopping, and as shown in FIG. 3 (b), left and right water blocking walls 11, 11 that are vertically continuous in the vertical direction are separated. It is formed by the members 1A and 1B, and the upper end of the facing interval between the water blocking walls 11 and 11 in the arrangement state is the opening 10.
At the lower ends of the left and right water blocking walls 11, 11 are formed continuously so as to be refracted outward, and support surface portions 12, 12 are provided so as to extend outward from the lower end of the outer cover 2. Each support surface part 12 is fixed on the roof 5 in the vicinity of the open part O by the fixtures 4b and 4b together with the auxiliary material 4 having a rectangular cross section. The support surface portion 12 is formed in a substantially W shape from the lower end of the water blocking wall 11 and is disposed along the upper surface and the side surface of the auxiliary material 4 so as to fix the fixtures 4b and 4b from above and from the side. It is firmly fixed with.

As described above, the outer cover 2 is mainly for windbreaking, covers the inner cover 1, and has all the exhaust opening holes 201 formed below the opening 10.
The outer cover 2 according to the first embodiment includes two inclined surface portions 21 and 21 having a water return piece 211 formed at the lower end, and a connection upper surface 22 that connects the upper ends thereof. By interposing a support member (interval forming member) 3 to be described later, the connecting upper surface 22 is disposed above the opening 10 of the inner cover -1 with the water blocking wall 11 of the inner cover 1 spaced from the outer wall 11. It is arranged to be located in.

The opening hole 201 in the first embodiment is opened upward, and the opening hole 201 is a ventilation convexity formed by a guide portion 202 that extends toward the upper end and an opening hole 201 that is formed at the upper end. It is formed in the part 20. A plurality of the ventilation convex portions 20 are provided in the height direction and the length direction of the inclined surface portion 21, respectively. Specifically, as shown in FIG. 3A, there are five rows in the height direction and six rows in the length direction. The three groups are provided in the length direction at three places, a total of 90 ventilation protrusions 20 are formed, and the opening hole 201 is formed upward in each of them.
Such a ventilation convex part 20 first performs slit processing with a lateral width (several centimeters) corresponding to the opening hole 201, and secondly, a male mold is formed from the back side so that the formed slit is the upper end. The ventilating convex part 20, that is, the guide part 202 and the opening hole 201 were formed by pressing (projecting several millimeters) so as to press.

The internal cover 1 having the above-described configuration and the external cover 2 having the above-described configuration are connected via a substantially gate-shaped support member 3 so as to be spaced apart from each other.
The support material 3 is a short molding material, and a plurality of the support materials 3 are attached at predetermined intervals as shown in FIG. The support member 3 is formed by forming a vertical surface portion 31 forming a facing interval between the covers 1 and 2 into a mountain shape, forming a support surface portion 32 in a flange shape on the outer edge of the vertical surface portion 31, and the vertical surface portion 31. The fixed surface portion 33 is formed in a flange shape on the inner edge portion of the rim, and also serves as a gap forming member. The outer cover 2 is supported on the support surface portion 32, and the inner cover 1 is fixed to the fixed surface portion 33. That is, the support member 3 is fixed with screws 3b along the fixing wall portion 33 along the water blocking wall 11 of the inner cover 1 fixed to the roof 5 as described above, and the outer cover 2 is fixed to the support surface portion 32. The two covers 1 and 2 are attached to the roof 5 in an opposing manner with the width of the vertical surface portion 31 by fixing the inclined surfaces 21 and 21 with screws 2b.

  Although the roof 5 is shown in the form of a board in FIG. 1, the roof material and the roof type used are not specified at all as described above, and any kind of roof may be used. The roof 5 is laid on the upper surface of a structural material (base) 8 disposed in an inclined manner via a waterproof material 7 and a heat insulating material (layer) 6, and the open portion O communicates with the internal space of the building. Located at the top of the opening.

  The ventilation structure of the present invention configured as described above can form the water blocking wall 11 of the inner cover 1 higher as shown in the figure, and can form a plurality of opening holes 201 of the outer cover 2, thereby rainwater. Intrusion can be prevented more reliably and wind can be appropriately entered, and air can easily escape from the inside to the outside. This situation will be described below with reference to FIGS. 2 (a) and 2 (b). In addition, in the said drawing, in order to make it easy to understand the flow of rainwater, the support material 3 and the like are omitted, and only the reference numerals are used.

In FIG. 2A, the flow of air from the indoor side is shown, but the flow of air heated indoors is indicated by a solid arrow. As shown in the drawing, the indoor air rises through the opening O, passes through the opening 10 of the inner cover 1 and flows between the inner cover 1 and the outer cover 2, and then the outer cover 2. Each of the plurality of ventilation convex portions 20 provided on the slope portion 21 is discharged (discharged) to the outside through the upward opening holes 201.
Fig. 2 (b) shows the wind flow and rainwater flow from the outdoor side, and wind is blown from various directions on the roof surface. Among them, particularly important winds are indicated by dotted arrows. ing. As shown in the drawing, the opening hole 201 does not face downward or sideward but faces upward with respect to the blowing air, so that it is difficult to directly enter the outer cover 2. Rainwater entering from the opening hole 201 facing upward is indicated by a solid arrow, but is guided downward by the water blocking wall 11 of the guide portion 202 and the inner cover 1 and discharged from the support surface portion 12 to the roof surface 5. ing.
In addition, since all the opening holes 201 formed in the outer cover 2 are positioned below the opening 10 of the inner cover 1, rainwater that has entered from the opening holes 201 forms a space between the outer cover 2 and the water blocking wall 11. Alternatively, since it flows down through the water blocking wall 11, it can be discharged without entering the opening 10.

  Further, as described above, the support surface portion 12 of the inner cover 1 is firmly fixed on the roof 5 via the auxiliary material 4, the support material 3 is fixed to the water blocking wall 11 of the inner cover 1, and the support material 3 Since the outer cover 2 is supported and fixed outside, the inner cover 1, the support member 3 and the outer cover 2 are integrally fixed on the roof 5.

In the second embodiment shown in FIG. 4, the outer cover 2 and the support member 3 are exactly the same as those in the first embodiment. Is a single member, and is different from the first embodiment in that an opening 10 'is formed in a connecting portion (lateral surface portion) 13 that connects the upper (upper ends) of the left and right water blocking walls 11', 11 '. To do.
In the second embodiment, the opening 10 ′ is a plurality of circular holes 131 formed in the substantially flat lateral surface portion 13, but is the upper end of the facing interval between the water blocking walls 11, 11. The same function as that of the opening 10 is achieved.

DESCRIPTION OF SYMBOLS 1, 1 'Inner cover 10, 10' Opening part 11, 11 'Water blocking wall 12, 12' Support surface part 13 Horizontal surface part 2 External cover 20 Ventilation convex part 201 Opening hole 202 Guide part 21 Inclined surface part 22 Connection upper surface 3 Support material (Spacing material)
4 Auxiliary material 5 Roof 6 Base plate 7 H frame O Open part

Claims (3)

A ventilation structure comprising an inner cover mainly for water stop and an outer cover mainly for windbreaks, which is arranged for the open part provided in the roof wing,
The inner cover has a water blocking wall and an opening communicating with the inside.
The outer cover covers the inner cover and forms an exhaust opening below the opening.   The ventilation structure according to claim 1, wherein the opening hole of the outer cover is opened upward.   The ventilation structure according to claim 1 or 2, wherein the outside air cover is provided with a plurality of ventilation protrusions, and the ventilation protrusions include a guide portion toward the upper end and an opening hole formed at the upper end.

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