JP2022159185A - Ventilation device - Google Patents

Abstract

To provide a ventilation device capable of reducing the possibility of water leakage on a roof.SOLUTION: A ventilation device 1 installed so as to cover a ventilation opening G formed in a ridge portion of a roof Y includes: a base member 30 including a pair of supports 31 and a pair of connecting pieces 32; a body member 40 having a bottom plate portion 41 having an opening 41a facing the ventilation port G and a drooping portion 42 hanging from the bottom plate portion 41; and a cover member 60 having a top plate portion 61 disposed above the body member 40 and forming an air passage R between itself and the bottom plate portion 41. The body member 40 is attached to the base member 30 by a fixture N2 penetrating through the drooping portion 42 of the body member 40 and an upright portion 31b of the support 31 in a state of being overlapped. Since the fixture N2 penetrates in a horizontal direction and does not penetrate a roof material J, the possibility of water leakage in a ventilation ridge M is reduced.SELECTED DRAWING: Figure 1

Description

There is an application for exception to loss of novelty

The present invention relates to a ventilation system for constructing a ventilation ridge on the ridge portion of a roof.

FIG. 17 is a cross-sectional view showing a ventilation building using the conventional ventilation device disclosed in Patent Document 1. As shown in FIG.

The ventilation ridge m is provided on a ridge portion of a mountain-shaped roof y such as a gable roof having two slanted roof surfaces f, and serves to ventilate the attic. In this conventional example, the ventilation ridge m is constructed by the ventilation device 100 installed so as to cover the ventilation opening g formed in the ridge portion.

The ventilator 100 includes a waste water drain member 110 protruding upward from an opening edge k of a ventilation opening g formed by cutting out a part of the roof material j, and a main body member 120 having an opening 121 facing the ventilation opening g. , a ventilation member 130 attached to the upper surface of the body member 120 , a waterproof plate member (not shown) covering the edge of the ventilation member 130 , and a cover member 140 covering the upper surface of the body member 120 .

Drainage members 110 are a pair of members positioned at respective opposing opening edges k along the ridge of the vent g, thus having a gap between each other in the installed state. Each waste water draining member 110 includes an attachment portion 111 fixed to the surface of the base material h, a drain portion 112 standing from one end of the attachment portion 111 and protruding upward from the ventilation port g, and an upper end of the drain portion 112. It has a water stop material 113 attached to it. The attaching portion 111 and the draining portion 112 are made of a metal plate and have a shape of an elongated object extending in the direction along the ridge, and the side view shape on the short side is substantially L-shaped.

The body member 120 has an opening 121 formed in its central portion, a pair of flat portions 122 extending outward from the edges of the opening 121, and a pair of hanging portions 123 extending downward from the outer edges of each flat portion 122. , has a flange portion 124 extending outwardly from the lower end of each depending portion 123 . A pair of flat portion 122 and flange portion 124 are formed on an inclined surface along the slope of the roof surface f. The body member 120 is formed by pressing a metal plate.

The ventilation member 130 has a rectangular cross section, has a rod-like shape extending in the direction along the ridge, and has air permeability in the direction of the eaves. It is fixed by a band body 131 made of a plate. The band body 131 is provided with a nut member (not shown) for screwing a bolt 150 for attaching the cover member 140 to an upper surface portion 131a facing the upper surface of the ventilation member 130 . Further, the flat portion 122 and the foot portion 131b fixed to the flat portion 122 are formed with mounting holes through which the fasteners 160 for fixing the main body member 120 to the roof surface f are inserted.

The waterproof plate members (not shown) are a pair of members arranged at each end edge of the ventilation member 130 . and a substrate fixed with rivets or the like.

The cover member 140 hangs down from each of the top plate portion 141 including two sloped surfaces abutting at an angle substantially equal to the angle formed by the pair of flat portions 122 of the main body member 120 and the edge of the top plate portion 141. and a hanging portion 142 . A plurality of through holes for inserting bolts 150 to be screwed into the nut members provided on the band body 131 are formed in appropriate places of the top plate portion 141 .

To construct the ventilation ridge m using this ventilation system 100, first, the base material h and a part of the roofing i are notched in the ridge portion of the roof y to form the ventilation opening g. Then, a pair of waste water draining members 110 are attached to positions sandwiching the ventilation opening g on the roofing i with nails, screws, or the like. Next, the roofing material j is installed so as to cover the mounting portion 111 of the draining member 110 . Subsequently, the main body member 120 having the ventilation member 130 and the waterproof plate member preliminarily fixed to the upper surface of the flat portion 122 is attached. In this operation, the waterproof packing 170 is arranged below the mounting hole of the main body member 120, and the fixture 160 such as a nail or course thread is driven into the roofing material while the waterproof packing 170 is inserted. Thereby, the main body member 120 is fixed on the roof surface f. Subsequently, the cover member 140 is placed on the body member 120 , and the bolt 150 inserted through the through hole of the cover member 140 is screwed into the nut member provided on the upper surface of the band body 131 . Thereby, the cover member 140 is attached so as to cover the main body member 120 .

The ventilation device 100 installed in this way communicates with the ventilation port g at the central portion between the top plate portion 141 of the cover member 140 and the main body member 120, passes through the ventilation member 130 in the middle, and An air passage 180 is formed through a vent hole 181 formed between the drooping portion 142 of the cover member 140 and the flange portion 124 of the body member 120 to open to the outside air. Therefore, the air rising from the ventilation port g can pass through the ventilation member 130 and then be discharged from the ventilation port 181 at the end of the ventilation path 180 to the outside air.

JP 2011-69138 A

In the conventional ventilator 100 described in Patent Document 1, the fixture 160 that fixes the main body member 120 to the roof surface f has a structure that penetrates from the surface of the roof material j to the lower surface of the base material h. . For this reason, if the waterproof packing 170 interposed in the middle of the fixture 160 is defective, or if the waterproof packing deteriorates due to aging, there is a risk that rainwater or the like will flow through the fixture 160 and enter the attic. rice field.

SUMMARY OF THE INVENTION An object of the present invention is to provide a ventilation system capable of reducing the possibility of water leakage on the roof.

In order to achieve the above object, the invention according to claim 1 is a ventilation device installed so as to cover a ventilation opening formed in a ridge portion of a roof having two inclined roof surfaces, A pair of support members each fixed at a position on both sides of the ventilation opening on the roof surface and extending along the ridge; Each of the supports has a fixed part fixed to the roof surface and an upright part rising from the eaves side edge of the fixed part, and the connecting piece is bent in a mountain shape at the center part and the bending angle can be changed. a body member having a member, a bottom plate portion disposed on the base member and having openings facing the ventilation openings, and a pair of depending portions depending from respective opposing edges of the bottom plate portion and superimposed on the uprights. and a cover member disposed above the body member and having a top plate portion forming a ventilation path between the body member and the bottom plate portion, and the body member includes the hanging portion and the standing portion in a state where they are overlapped. It is attached to the base member by fasteners that pass through it.

With this configuration, the pair of support members are aligned so that the central portion of the connecting piece of the base member is directly above the ridge, and the pair of support members are fixed at positions sandwiching the ventilation opening on the roof surface, and the hanging portion of the main body member is fixed. The body member is attached to the base member by superimposing it on the upright portion of the base member and passing the fixture through the hanging portion and the upright portion in this state. Next, by arranging and attaching the cover member above the main body portion, an air passage is formed between the bottom plate portion and the top plate portion, and a ventilation ridge is constructed.

According to the invention of claim 2, in the structure of the invention of claim 1, the supporting member of the base member further has connecting portions extending from the upper edge of the upright portion toward the ridge at least at two locations separated in the longitudinal direction. Both ends of the connecting piece are fixed to the connecting portion.

With this configuration, the connection piece and the support are connected at the connection portion of the support of the base member.

According to the invention of claim 3, in the configuration of the invention of claim 1 or claim 2, the air vents are arranged at respective opposing opening edges in the direction along the ridge of the ventilation opening and have a gap therebetween. A pair of draining members having a draining portion projecting upward from the opening edge, and a shield disposed at each end edge of the pair of draining portions in the direction across the ridge and covering the gap between the pair of draining portions It further comprises a pair of end members forming a water surface, the end members comprising a plate-like upper support piece, a pair of impermeable pieces that hang down from the upper support piece and have a gap between them, and a pair of and a pair of fixed pieces formed by bending the lower ends of the respective impermeable pieces, and by bending the upper support piece at positions corresponding to the cuts so that the pair of impermeable pieces approach each other, the Part of the water pieces overlap to form a water impermeable surface.

With this configuration, a pair of waste water draining members are arranged at the opposite opening edge portions in the direction along the ridge of the ventilation opening, and the draining portions protrude upward from the opening edge portions. The upper supporting piece of the end member is bent in accordance with the slope of the roof so that the pair of impermeable pieces are partially overlapped. Then, the pair of end members are arranged at the opposite edge portions in the direction across the ridge in the draining portion of each waste water draining member, and the fixing pieces are fixed to the roof surface. The impermeable piece of the end member forms a impermeable surface covering the gap of the draining part of the waste water draining member, and together with the draining part constructs a waterproof wall structure rising from the ventilation opening.

The invention according to claim 4, in the configuration of the invention according to claim 3, further includes a water stop material attached to the upper end of the draining part of the waste water draining member and the upper surface of the upper support piece of the end member, wherein the water stop material , to abut against the lower surface of the bottom plate portion of the body member.

With this configuration, a pair of waste water draining members and a pair of end members are arranged at the opening edge of the ventilation port, and when the main body member is placed on the base member fixed to the roof surface, the waste water draining member and the end members are arranged. A water stop material attached to each member abuts against the lower surface of the bottom plate portion of the main body member to close the gap therebetween.

The invention according to claim 5 is the structure of the invention according to any one of claims 1 to 4, and is arranged between the main body member and the cover member, allowing ventilation in the direction of the eaves and inhibiting water flow. and a ventilation member having a baffle portion for

This arrangement allows ventilation in the direction of the eaves and prevents the inflow of water.

According to the first aspect of the invention, the main body member is attached to the roof surface via the base member, and the fasteners for fixing the main body member to the base member are constructed so as to pass through the upright portion and the drooping portion in the lateral direction. As a result, the fasteners do not penetrate through the roof material as in the past. Therefore, the possibility of water leakage in the ventilation building is reduced. In the base member, at least two connecting pieces that connect a pair of supports are capable of changing the bending angle of the central portion. It can be held on the roof surface in the optimum posture that matches the

According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, since the supporting body and the connecting piece can be composed of separate members, the strength of the supporting body is prioritized and the bending property of the connecting piece is prioritized. be able to. The strength of the connection between the support and the connecting piece is ensured, and the connection work is facilitated.

According to the invention of claim 3, in addition to the effect of the invention of claim 1 or claim 2, by adjusting the bending angle of the upper support piece of the end member, each of the pair of fixed pieces is attached to the surface of the roof material. It can be properly aligned, and a reliable waterproof structure can be obtained.

According to the invention of claim 4, in addition to the effect of the invention of claim 3, even if water blows up the roof surface, the waste water draining member and the water stop material of the end member prevent water from entering the ventilation opening. can be prevented.

In the invention according to claim 5, in addition to the effect of the invention according to any one of claims 1 to 4, even if water blows up the roof surface, the baffle plate part of the ventilation member prevents the water from entering the ventilation opening. of water can be blocked.

1 is a cross-sectional view showing the overall structure of a ventilation building constructed using a ventilation system according to an embodiment of the present invention; FIG. FIG. 2 is a cross-sectional view showing the ventilation device shown in FIG. 1 disassembled into constituent members; 1. It is a figure which shows the waste-water draining member used for the ventilator of FIG. 1, (A) is a perspective view, (B) is a side view of a short side. 1. It is a figure which shows the form before use of the end member used for the ventilator of FIG. 1, (A) is a front view, (B) is a side view, (C) is a top view. 1. It is a figure which shows the end member used for the ventilation apparatus of FIG. 1, (A) is a perspective view which shows the form before use, (B) is a perspective view which shows a form at the time of use. FIG. 2 shows a base member used in the ventilator of FIG. 1, where (A) is a perspective view, (B) is a lateral side view, and (C) is a drainage hole in the center of the support. It is a figure which expands and shows . FIG. 2 is a view showing a body member used in the ventilator of FIG. 1, (A) being a perspective view and (B) being a cross-sectional view taken along line XX of (A); It is a figure which shows the cover member used for the ventilator of FIG. 1, (A) is a perspective view, (B) is sectional drawing in the YY line of (A). FIG. 10 is a perspective view showing a procedure for constructing a ventilation ridge using the ventilation system of FIG. 1 and showing a state of preparing a waste water draining member and an end member; 1. It is a figure which shows the procedure which constructs a ventilation ridge using the ventilation apparatus of FIG. 1, and is a perspective view which shows the condition which matched the ventilation opening formed in the ridge|ridge part of a roof, and attached a waste water drain member and an edge member. It is a figure which shows the procedure which constructs a ventilation ridge using the ventilation apparatus of FIG. FIG. 4 is a diagram showing the procedure for constructing a ventilation ridge using the ventilation system of FIG. 1, and is a perspective view showing a situation in which a base member is arranged on a waste water draining member. FIG. 4 is a diagram showing the procedure for constructing a ventilation ridge using the ventilation system of FIG. 1, and is a perspective view showing a state in which a main body member is arranged on a base member; FIG. 4 is a diagram showing the procedure for constructing a ventilation ridge using the ventilation system of FIG. 1, and is a perspective view showing a state in which a cover member is arranged on the main body member; FIG. 4 is a cross-sectional view showing the overall structure of a ventilation building constructed using ventilation devices according to different embodiments of the present invention; FIG. 16 is a cross-sectional view showing the ventilation device shown in FIG. 15 disassembled into constituent members; FIG. 3 is a cross-sectional view showing the structure of a ventilation building constructed using the conventional ventilation device described in Patent Document 1;

<Configuration of ventilation device>
FIG. 1 is a sectional view showing the overall structure of a ventilation building constructed using a ventilation system according to an embodiment of the present invention, and FIG. 2 is a sectional view showing the ventilation system shown in FIG. 1 disassembled into constituent members. FIG. 3 is a diagram showing a waste water draining member used in the ventilation system, FIG. 4 is a diagram showing the form of the end member before use used in the ventilation system, and FIG. FIG. 6 is a perspective view showing the form of the end member used before use, (B) is a perspective view showing the form during use, FIG. 6 is a view showing the base member used in the ventilator, and FIG. 7 is the ventilator. FIG. 8 shows a main body member used in a ventilator, and FIG. 8 shows a cover member used in a ventilator.

The ventilation system 1 of this example is installed so as to cover a ventilation opening G formed in the ridge portion of a roof Y having two inclined roof surfaces F to construct a ventilation opening M. A pair of waste water draining members 10 arranged at each of the opposing opening edges K along the ridge direction, and a pair of ends placed at each end edge of the pair of waste water draining members 10 in the direction crossing the ridge It comprises a member 20, a base member 30 arranged above the waste water draining member 10, a body member 40 attached on the base member 30, and a cover member 60 attached on the body member 40. - 特許庁

Referring to FIG. 3, the draining member 10 has the form of an elongated object, and includes a rectangular mounting portion 11 and a draining portion 12 standing from the edge of the mounting portion 11 that will be on the ridge side during construction. , an upper piece portion 13 folded back from the upper end of the draining portion 12 in parallel with the mounting portion 11, and a rod-shaped water stop material 14 attached to the upper surface of the upper piece portion 13. As shown in FIG. A central mark line C2 for positioning is provided at the central position of the attachment portion 11 .

4 and 5, the end member 20 is arranged at the edge of the short side of the draining member 10, and includes a plate-like upper support piece 21 and a plate-like upper support piece 21, and A pair of water impermeable pieces 22 having a cut 23 therebetween, a pair of fixed pieces 24 formed by bending the lower ends of the pair of water impermeable pieces 22, and attached to the upper surface of the upper support piece 21. It has a water stop material 25 attached. The upper support piece 21 can be bent at a position corresponding to the cut line 23. By bending the upper support piece 21 so that the pair of impermeable pieces 22a and 22b approach each other, one of the impermeable pieces 22a and 22b is bent. It is configured such that the portions overlap to form a water impermeable surface S.

Referring to FIG. 6 , base member 30 includes a pair of supports 31 having the form of elongated objects and at least two connecting pieces 32 connecting the pair of supports 31 . The support body 31 includes a long and narrow rectangular fixed portion 31a, an upright portion 31b that rises from an edge of the fixed portion 31a that becomes the eaves side during construction, and an upper end edge of the fixed portion 31a at both ends in the longitudinal direction of the upright portion 31b. and a connecting portion 31c extending in the same direction. The support 31 thus has a cross-section perpendicular to the longitudinal direction which is approximately U-shaped at the edges and L-shaped for the most part. The fixing part 31a is provided with a fixing tool guide part 31d such as a through hole or a burring for indicating a position for driving a fixing tool for fixing the base member 30 to the roof surface. The position of the fixture guide part 31d is set based on the arrangement of the rafters constructing the roof. Further, water stop materials 34 and 35 are provided on the upper surface near the ridge and on the lower surface near the eaves side of the fixed portion 31a, respectively. Further, a central drainage hole 31e, which also serves as a positioning mark, is formed in the central portion of the standing portion 31b.

The connecting piece 32 is made of a band plate-like member, and is bent in a mountain shape at the central portion 32a, and the bending angle can be changed. Both ends 32b are fixed to connecting portions 31c of the pair of supports 31 by fixing means 33 such as screws and rivets. The connecting piece 32 is designed to be parallel to the fixed portion 31 a of the support 31 . Therefore, by adjusting the bending angle of the central portion 32a of the connecting piece 32, the inclination of the fixing portion 31a of the support 31 can be adapted to the inclination of the roof on which the base member 30 is installed.

In this example, since the connecting piece 32 is connected to the connecting portion 31c of the support body 31, the strength of the connection between them is ensured, and the connecting work is easy. In addition, since the support 31 and the connecting piece 32 are composed of separate members, a thick member is used for the support 31 in order to increase the strength, and a thin member is used for the connecting piece 32 in order to impart bendability. can be used. Specifically, for example, the thickness of the member forming the support 31 may be set to 0.8 mm, and the thickness of the member forming the connecting piece 32 may be set to 0.35 mm. Furthermore, the support 31 and the connecting piece 32 may be made of different materials.

Referring to FIG. 7, a main body member 40 includes a bottom plate portion 41 which has an opening 41a facing the ventilation port in the center and is arranged to cover the base member 30, and the top surface of the bottom plate portion 41 sandwiches the opening 41a. A pair of rod-shaped ventilation members 45 arranged at positions, waterproof plate members 47 arranged at both longitudinal ends of the ventilation members 45, and water return members arranged between the openings 41a and the ventilation members 45. 48.

The bottom plate portion 41 has two inclined surfaces 41b that are bent in a mountain shape at the top portion 41c and that follow the slope of the roof. Further, the bottom plate portion 41 has a pair of drooping portions 42 extending downward from each of its longitudinally opposite edges, and a flange portion 43 extending outward from the lower end of each drooping portion 42 in parallel with the inclined surface 41b. have. Each drooping portion 42 is provided with an attachment hole 44 for inserting a fastener such as a screw or a screw for attaching the main body member 40 to the base member 30 . At least one of the two drooping portions 42 is formed with a central opening 49 serving as a positioning mark at its central position.

The ventilation member 45 is a bar-shaped body having a rectangular cross section, and has air permeability in the eaves direction (direction perpendicular to the longitudinal direction). That is, the ventilation member 45 is formed by laminating a plurality of synthetic resin sheets having a large number of irregularities and integrating them by heat sealing, thereby forming a large number of communication passages that communicate between the ridge-side end surface and the eaves-side end surface. is formed. By designing the opening dimensions of the communication passages so that the flow of gas is easy, but the flow of liquid is difficult, the ventilation member 45 enables the attic to be ventilated through the ventilation openings. Demonstrates a waterproof function that prevents rainwater from entering.

The means for fixing the ventilation member 45 to the bottom plate portion 41 is the same as that in Patent Document 1, and uses a band body 46 formed by bending a strip-shaped metal plate into a convex shape. That is, the band member 46 is placed on the ventilation member 45 arranged at a predetermined position on the bottom plate portion 41, and the foot portion 46a on the lower end side of the band member 46 extending to the side of the ventilation member 45 is attached to the bottom plate portion 41 with a rivet or the like. By fixing, the ventilation member 45 is attached. An upper surface portion 46b of the band body 46 facing the upper surface of the ventilation member 45 is provided with a nut member 50 into which a bolt for attaching a cover member, which will be described later, is screwed.

The waterproof plate members 47 are a pair of members arranged at both ends of the ventilation member 45 in the longitudinal direction. and a substrate portion 47b. In this example, the waterproof plate portion 47a is configured by partially overlapping two plate-like members. As a result, even if the bending angle of the bottom plate portion 41 is changed, the overlapping state of the two waterproof plate portions 47a is changed accordingly, thereby preventing the gap from occurring in the waterproof plate portions 47a.

The water return member 48 is an elongated member having an L-shaped cross section arranged along the edge of the opening a of the bottom plate portion 41 along the longitudinal direction. It consists of an upper mounting portion and a water return portion rising from one end of the mounting portion. In this example, along with the band body 46 for fixing the ventilation member 45 , the attachment portion of the water return member 48 is also configured to be attached to the bottom plate portion 41 .

A water stop material 51 is arranged on the upper surface of the bottom plate portion 41 at a position between the opening 41 a and the waterproof plate material 47 . Further, on the back surface of the bottom plate portion 41, a water stop material 52 is arranged along the longitudinal edge of the opening 41a.

Referring to FIG. 8, cover member 60 includes a top plate portion 61 including two inclined surfaces 61a having a slope matching the shape of bottom plate portion 41 of main body member 40, and an end portion along the longitudinal direction of top plate portion 61. It has a long-side hanging part 62 hanging down from the edge and a short-side hanging part 63 hanging down from the edge along the short side direction of the top plate part 61 . A plurality of through holes 64 for inserting bolts to be screwed into the nut members 50 provided on the band body 46 are formed at appropriate positions of the top plate portion 61 .

A heat insulating material 70 for preventing dew condensation is provided on the lower surface of the top plate portion 61 of the cover member 60 . Furthermore, on the lower surface of the top plate portion 61, water stop materials 71 and 72 are provided at positions corresponding to the upper end portions of the ventilation member 45 and the waterproof plate member 47 when the cover member 60 is arranged on the main body member 40. It is

Main portions of the waste water draining member 10, the base member 30, the main body member 40, and the cover member 60, which constitute the ventilator 1, are formed by bending a metal plate. As the metal plate, for example, a Galvalume steel plate (registered trademark), a Galvalume color steel plate obtained by coating a Galvalume steel plate, or the like is used. The water stop material is made of a material that is elastically deformable and impermeable to water. For example, a plastic foam such as EPDM (ethylene propylene diene rubber) is used.

<Construction procedure for ventilation building>
A procedure for constructing a ventilation ridge on the roof using the ventilation system configured as described above will be described below.

9 to 14 are diagrams showing the procedure for constructing a ventilation building using the ventilation system of FIG. FIG. 11 is a perspective view showing a state in which a waste water draining member and an end member are attached in accordance with a ventilation opening formed in a ridge portion of a roof, and FIG. 11 is a perspective view showing a state in which a roof material is arranged on the waste water draining member. 12 is a perspective view showing a state in which the base member is arranged on the wastewater draining member, FIG. 13 is a perspective view showing a state in which the main body member is arranged on the base member, and FIG. 14 is a perspective view of the main body member. FIG. 11 is a perspective view showing a situation in which a cover member is arranged thereon;

Referring to FIG. 9, first, in the ridge portion, a portion of the base material H and the roofing I before the roof material is attached is cut by a predetermined size to form a ventilation opening G. As shown in FIG. A first center marking line C1 is marked on the surface of the roofing I as a mark indicating the center position of the ventilation opening G in the longitudinal direction (direction along the ridge). The long side dimension of the ventilation opening G formed in the roof Y is matched with the length dimension of the waste water draining member 10 to be used. The short side dimension of the ventilation opening G is set based on the dimension of the body member 40 .

Next, the prepared waste water draining member 10 and the end member 20 are attached around the ventilation opening G. Each of the pair of waste water draining members 10 has the draining portion 12 along the opening edge of the ventilation port G, and the center mark line C2 marked on the surface of the mounting portion 11 is aligned with the first center marking line C1. After matching and positioning on the roofing I, screws, nails, etc. (not shown) are driven in and fixed to the base material H. In the pair of end members 20, the upper support piece 21 is bent in accordance with the inclination of the surface of the roofing I, and the two impermeable pieces 22a and 22b are partially overlapped to form the impermeable surface S, and in this state, the water is drained off. It is arranged so as to abut on both ends in the longitudinal direction of the member 10 and fixed with screws, nails, or the like.

Referring to FIG. 10, once the waste water draining member 10 and the end member 20 are attached around the ventilation opening G, a caulking material or the like is applied to the overlapping portions of the water impermeable pieces 22a and 22b of the end member 20 to provide waterproofness. ensure

Referring to FIG. 11, once a watertight wall structure consisting of the drainage member 10 and the end member 20 is built around the ventilation opening G, the surface of the roofing I is covered with the underlaying material L and the roofing material J. As shown in FIG. At that time, a part of the underlaying material L and the roofing material J is partially notched in accordance with the draining member 10 and the end member 20.例文帳に追加A second center marking line C3 is drawn on the surface of the roofing material J in accordance with the center mark line C2 marked on the drainage member 10. - 特許庁The underlaying material may be omitted depending on the situation.

Referring to FIG. 12, the base member 30 is attached to the surface of the roof material J so as to sandwich the draining member 10 between a pair of supports 31 . At that time, the base member 30 is positioned by aligning the central drain hole 31e of the base member 30 with the second center marking line C3 of the roof material J. Also, the bending angle of the connecting piece 32 is adjusted according to the slope of the roof surface F. After that, the base member 30 is fixed to the roof material J by driving a fastener N1 such as a coarse thread or a nail into the position of the fastener guide portion 31d of the fixing portion 31a.

Referring to FIG. 13, the base member 30 fixed to the roof material J is then used to attach the main body member 40 . Specifically, the main body member 40 is placed over the upper surface of the base member 30, and the central opening 49 of the hanging portion 42 is aligned with the second center marking line C3 of the roof material J and positioned. Also, the bending angle of the bottom plate portion 41 is adjusted according to the slope of the roof surface F. After that, a fixture N2 such as a sheet metal screw is screwed into the mounting hole 44 and the central opening 49 provided in the drooping portion 42 . Furthermore, a combing material or the like is applied to the overlapping portions of the two waterproof plate portions 47a of the waterproof plate member 47 to ensure waterproofness. As a result of this work, the hanging portion 42 of the main body member 40 and the upright portion 31b of the base member 30 are joined by the fixture N2, and the main body member 40 is fixed on the roof surface F via the base member 30. FIG.

Referring to FIG. 14, finally, cover member 60 is attached to main body member 40 . That is, the cover member 60 is arranged on the body member 40, the bending angle of the top plate portion 61 is adjusted according to the slope of the roof surface F, and the through hole 64 is provided in the band member 46 of the body member 40. Align with nut member 50 . Then, by screwing a fastener N3 such as a bolt onto the nut member 50 through the through hole 64, the attachment of the cover member 60 is completed, and the ventilation ridge is constructed. At this time, a portion of the bottom plate portion 41 of the main body member 40 is exposed without being covered by the cover member 60, and this exposed portion can be used when constructing a ridge member (not shown).

Referring again to FIG. 1, the ventilation ridge M constructed as described above has a pair of supports 31 aligned so that the central portion 32a of the connecting piece 32 of the base member 30 is directly above the ridge. is fixed at a position sandwiching the ventilation opening G on the roof surface F, and the hanging portion 42 of the main body member 40 is superimposed on the standing portion 31b of the base member 30, and the fixture N2 is attached to the hanging portion 42 and the standing portion 31b. By penetrating, the body member 40 is attached to the base member 30 . The direction in which the fastener N2 is passed through the upright portion 31b and the hanging portion 42 is the lateral direction, and the fastener does not pass through the roof material as in the conventional case. Therefore, the risk of water leakage in the ventilation ridge M can be reduced. However, the fixture N1 such as a course thread that attaches the base member 30 to the roof surface F extends from the surface of the roofing material J through the underlaying material L, the draining member 10, the roofing I, and the base material H. , and the rafters P, and it is thought that there is a risk that the waterproofness will be reduced at this penetrating portion. However, in this example, the upper part of the fixture N1 is covered with the bottom plate portion 41 of the main body member 40, and the water stop material 35 is arranged between the roof material J and the fixing part 31a of the base member 30, so that the fixture N1 can be installed. By adopting a structure in which water does not reach the penetrating portion, the risk of water leakage at this penetrating portion is eliminated.

In addition, the periphery of the ventilation port G is surrounded by the waste water draining member 10 and the end member 20, and the water stop materials 14 and 25 attached to the upper parts of the waste water draining member 10 and the end member 20 are attached to the lower surface of the bottom plate portion 41 of the main body member 40. abutting. As a result, the posture of the main body member 40 is stabilized, and the structure is such that no gap is formed between the main body member 40 and the waste water draining member 10 and the end member 20 . Therefore, there is no danger of rainwater entering into the ventilation opening G from the outside beyond the draining member 10 and the end member 20. - 特許庁

In this ventilation ridge M, a ventilation path R passing through the ventilation member 45 is formed between the bottom plate portion 41 of the main body member 40 and the top plate portion 61 of the cover member 60 . The air passage R communicates with the ventilation opening G through the opening 41a at the central portion corresponding to the ridge position, and communicates with the outside air between the flange portion 43 and the long-side drooping portion 62 at both ends on the eaves side. there is Further, the ventilation member 45 allows gas to flow in the eaves ridge direction. Therefore, the ventilation ridge M exerts a ventilation function of discharging the air in the attic from the ventilation port G through the ventilation path R to the outside air. In addition, the heat insulating material 70 arranged on the lower surface of the top plate portion 61 of the cover member 60 prevents dew condensation from occurring on the lower surface of the top plate portion 61 due to the temperature difference between the attic and the outside air.

The ventilation member 45 arranged in the middle of the ventilation path R is designed such that the opening size of the communication path facilitates the flow of gas but makes it difficult to flow the liquid. Moreover, the upper surface of the band member 46 fixing the ventilation member 45 and the lower surface of the top plate portion 61 of the cover member 60 are sealed by a water stop material 71, and the waterproof plate member 47 and the top plate portion 61 are sealed. It is sealed with a water stop material 72 . Therefore, even if wind and rain blow up the roof Y and rainwater enters the air passage R from the end side of the cover member 60, the movement of the rainwater is blocked at the position of the ventilation member 45. There is no danger of it getting inside. Even if rainwater passes through the ventilation member 45, it can be prevented from entering the ventilation opening G by the water return member 48. - 特許庁

In short, the ventilation system 1 of the present embodiment provides a ventilation ridge M that can reliably ventilate the attic without the risk of water leakage from the roof or rainwater entering the ventilation openings.

15 is a cross-sectional view showing the overall structure of a ventilation building constructed using a ventilation system according to a different embodiment of the present invention, and FIG. 16 is a cross-sectional view showing the ventilation system shown in FIG. 15 disassembled into constituent members. is.

Since the basic configuration and construction procedure of the ventilation system of this embodiment are common to those of the above-described embodiments, the differences therefrom will be mainly described. In this example, the member attached to the upper surface of the main body member 40 and for forming the ventilation path R between itself and the cover member 60 is changed to a ventilation member 80 having a so-called baffle structure. The ventilation member 80 is made of a metal plate or the like, has a length in the longitudinal direction equal to that of the ventilation member 45 of the above-described embodiment, and has upper surface portions 81a and 81b and a lower surface formed substantially parallel to each other. A plurality of baffle plate portions 82a to 82d having openings X1 to X3 and crossing the eaves ridge direction are provided between the portions 83a and 83b. In this example, three baffle plate portions 82a, 82c, 82d are formed at right angles to upper surface portions 81a, 81b and lower surface portions 83a, 83b, and one baffle plate portion 82b is formed to be inclined. However, all may be perpendicular or inclined, and the ratio between the perpendicular and the inclined may be changed. Also, the number of baffle plates may be increased or decreased.

Of the openings X1 to X3 formed in the baffle plate portions 82a to 82d, the openings X1 and X3 are positioned above, and the opening X2 is positioned below. With this configuration, it is possible to prevent water from flowing into the ventilator 1 from the outside while allowing air to flow in the direction of the eaves through the openings X1 to X3. That is, the ventilation member 80 is provided with the baffle plate portions 82a to 82d having the openings X1 to X3, so that the ventilation function can be exhibited without allowing the water blowing up on the roof surface to enter the ventilation opening G. It has become.

The ventilation member 80 of this example can be manufactured by forming openings X1 to X3 in advance in a metal plate such as a galvalume steel plate and bending the metal plate. In addition, it is also possible to manufacture by different methods such as aluminum extrusion molding.

When assembling the ventilator 1, the top plate portion 61 of the cover member 60 is fixed to the upper surface portion 81b of the ventilation member 80 with fasteners N4 such as screws. Further, the lower surface portions 83a and 83b are fixed to the bottom plate portion 41 of the main body member 40 in advance by brazing, adhesion, or the like.

By the way, in this example, the main body member 40 is also modified as follows. First, a relatively short second water return portion 41 d was formed at the intersection of the bottom plate portion 41 and the drooping portion 42 of the body member 40 . A third water return portion 43a projecting in a mountain shape is formed at the eaves side edge portion of the flange portion 43. As shown in FIG. Furthermore, the height dimension of the water return member 48 formed along the ridge-side edge of the bottom plate portion 41 is set larger than in the above embodiment. In this way, since the water return structure is reinforced in this example, even if rainwater blows up the roof during a storm, rainwater is reliably prevented from reaching the ventilation opening G through the ventilation member 80 of the ventilation device 1. be able to.

In the above embodiment, the connecting pieces connecting the pair of supports in the base member are connected at both ends of the supports, but may be connected at two separate locations other than both ends. Also, the number of connecting pieces may be three or more. Also, the support and the connecting piece may be integrally formed from the same material.

In each of the above-described embodiments, each component of the ventilation system is configured symmetrically with respect to the ventilation opening. It may be structured.

The nut member into which the bolt for attaching the cover member is screwed may be provided on a portion other than the band body for fixing the ventilation member.

A part of the members constituting the ventilator may be made of synthetic resin.

The plan view shape of the ventilator may be a shape other than a rectangle.

DESCRIPTION OF SYMBOLS 1... Ventilation device 10... Waste water draining member 11... Attachment part 12... Draining part 13... Upper piece part 14... Water stop material 20... End member 21... Upper support piece 22... Impermeable piece 22a... Impermeable piece 22b... Interceptor Water piece 23... Cut 24... Fixed piece 25... Waterproof material 30... Base member 31... Support body 31a... Fixed part 31b... Standing part 31c... Connection part 31d... Fixture guide part 31e... Central drain hole 32... Connection piece 32a Central portion 32b Both ends 33 Fixing means 34 Water stop material 35 Water stop material 40 Body member 41 Bottom plate portion 41 a Opening 41 b Inclined surface 41 c Top portion 41 d Second water return portion 42 Drooping portion 43 Flange portion 43a Third water return portion 44 Mounting hole 45 Ventilation member 46 Band body 46a Foot portion 46b Upper surface portion 47 Waterproof plate member 47a Waterproof plate portion 47b Base plate portion 48 Water Return member 49 Center opening 50 Nut member 51 Water stop material 52 Water stop material 60 Cover member 61 Top plate portion 61a Inclined surface 62 Long side drooping portion 63 Short side drooping portion 64 Through hole 70 Heat insulating material 71 Water stop material 72 Water stop material 80 Ventilation members 81a, 81b Upper surface parts 82a to 82d Baffle plate parts 83a, 83b Lower surface part 100 Ventilator 110 Drainage drain member 111 Mounting portion 112 Draining portion 113 Water stop material 120 Body member 121 Opening 122 Flat portion 123 Drooping portion 124 Flange portion 130 Ventilation member 131 Band body 131a Upper surface portion 131b Foot portion 140 Cover Member 141 Top plate portion 142 Drooping portion 150 Bolt 160 Fixing tool 170 Waterproof packing 180 Air passage 181 Vent C1 First center mark line C2 Center mark line C3 Second center mark Lead line F... Roof surface G... Ventilation opening H... Backing material I... Roofing J... Roofing material K... Opening edge L... Underlaying material M... Ventilation ridge N1... Fixing tool N2... Fixing tool N3... Fixing tool N4... Fixing tool P... Rafters Q... Ridge R... Ventilation path S... Water impermeable surfaces X1 to X3... Opening Y... Roof f... Roof surface g... Ventilation opening h... Base material i... Roofing j... Roofing material k... Opening edge m... Ventilation ridge y... Roof In addition, the same code|symbol in each figure shows the same or a corresponding part.

Claims (5)

A ventilation device installed to cover a ventilation opening formed in a ridge portion of a roof having two sloping roof surfaces,
A pair of supports extending along the ridge and fixed at positions sandwiching the ventilation opening on the two roof surfaces, and at least two connections connecting the pair of supports at at least two longitudinally separated locations. each of the supports has a fixed portion fixed to the roof surface and an upright portion rising from the eaves-side edge of the fixed portion; a base member having a variable bending angle;
A main body disposed on the base member and having a bottom plate portion having an opening facing the ventilation port, and a pair of hanging portions hanging from opposite edges of the bottom plate portion and superimposed on the standing portion. a member;
a cover member disposed above the main body member and having a top plate portion that forms an air passage with the bottom plate portion;
The ventilating device, wherein the body member is attached to the base member by a fixture penetrating the hanging portion and the standing portion in an overlapping state. The support of the base member further has connecting portions extending from the upper edge of the rising portion toward the ridge at at least two longitudinally spaced locations, and both ends of the connecting pieces are connected to the connecting portions. 3. The ventilator of claim 1, wherein the ventilator is fixed. A pair of draining members disposed at respective opposing opening edges in the ridge direction of the ventilation opening and having draining portions protruding above the opening edges with a gap therebetween. When,
a pair of end members arranged at respective end edges of the pair of draining portions in the direction across the ridges and forming a water impermeable surface covering the gap of the pair of draining portions;
The end member is formed by a plate-shaped upper support piece, a pair of impermeable pieces that hang down from the upper support piece and have a gap between them, and a lower end of each of the pair of impermeable pieces that is bent. and a pair of fixed pieces,
2. The impermeable surface is formed by partially overlapping the impermeable pieces by bending the upper support piece at a position corresponding to the cut so that the pair of impermeable pieces approach each other. 3. Ventilation device according to claim 2. further comprising a water stop material attached to the upper end of the draining portion of the draining member and the upper surface of the upper support piece of the end member;
4. The ventilator according to claim 3, wherein the water stop material contacts the lower surface of the bottom plate portion of the body member. 5. Any one of claims 1 to 4, further comprising a ventilation member disposed between the main body member and the cover member and provided with a baffle plate portion that allows ventilation in the direction of the eaves and blocks water flow. Ventilation as described.

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