Projected corner member and ventilation structure

Abstract

To provide a projected corner member which can be easily installed regardless of the width of a parapet end, and a ventilation structure using the same.SOLUTION: A projected corner member 1 is installed under the coping of the parapet so as to cover a ventilation member 2 installed along the short direction of a substrate skeleton 50 extending in the longitudinal direction and a projected corner part in the longitudinal direction. The projected corner member 1 is provided with a first side plate part 11 extending in the vertical direction, and a second side plate part 12 connected to an outer side end part of the first side plate part and arranged along the longitudinal direction of the substrate skeleton 50. The ventilation member 2 is provided with a side surface part 76 in which a plurality of openings 75 are formed along the short direction of the foundation skeleton 50, and the first side plate part 11 of the projected corner member 1 is arranged so as to overlap a part of the outer surface of the side surface part 76, and is set to a length sufficient to expose the openings 75. With such a configuration, the projected corner member can be easily installed at the parapet end part, and ventilation can be performed through the exposed opening 75 of the ventilation member 2, so that the reliability of the ventilation performance at the parapet end is improved.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a corner member and a ventilation structure, and more particularly to a corner member arranged at a corner portion of a structure having a coping such as a parapet, and a ventilation structure constructed using the corner member. [Background technology]

[0002] Conventionally, there exists a ventilation structure that is installed on the base structure (standing structure) of a fence, balcony railing, parapet, etc., and is used to ventilate the inside of the base structure under a coping.

[0003] FIG. 14 is a schematic perspective view showing the overall structure of a conventional ventilation structure.

[0004] In the conventional ventilation structure 104, a long-shaped under-cap ventilation member 110 is installed along the base structure 100, and inside corner members are installed at the inside corners and outside corner members 111 are installed at the outside corners to cover the corners. Also, an opening 114 that communicates with the internal space of the base structure 100 is formed in the side portion 113 of the under-cap ventilation member 110. This provides excellent ventilation performance inside the base structure under the cap.

[0005] In a parapet roof house with a parapet on three sides other than the eaves side, the opposing corners in the short direction may be close to each other at the ends of the parapet. In the conventional ventilation structure 104, even in such a narrow parapet end, ventilation is possible in the longitudinal direction of the base structure 100 through the openings 114 of the capping ventilation member 110. Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the short side direction of the base structure 100, the openings of the under-coat ventilation members installed on the short side are blocked by the corner members 111a and 111b, so the reliability of the ventilation performance at the parapet edge is not sufficient. Therefore, there is a risk that warm and moist air will stagnate at the parapet edge.

[0007] Furthermore, if one tries to adjust the length of the corner members on-site to match the width of the parapet end, the degree of completion depends on the skill of the contractor.

[0008] This invention has been made to solve the above-mentioned problems, and its object is to provide a corner member that can be easily installed regardless of the width of the parapet end, and a ventilation structure using the same. [Means for solving the problem]

[0009] In order to achieve the above object, the invention described in claim 1 provides a corner member that is installed at a corner between the short and long sides of a base structure under a cap where a ventilation member having a side portion with a plurality of openings formed at predetermined intervals along the short side of a base structure so as to communicate with an internal space of the base structure extending in the long side is installed in the short side of the base structure, and the corner member extends in a vertical direction in an installed state and is arranged so as to overlap a part of the outer surface of the side portion of the ventilation member when the short side of the base structure is defined as the x direction and the long side of the base structure is defined as the y direction. The ventilation member has a first side panel portion having a rectangular flat shape connected to an outer end portion in the x direction of the first side panel portion, a second side panel portion having a rectangular flat shape connected to an outer end portion in the x direction of the first side panel portion and arranged along the longitudinal direction of the underlying structure, a top panel portion connected to an upper end of the first side panel portion and an upper end of the second side panel portion and covering part of the upper surface of the underlying structure, and a bottom panel portion connected to a lower end of the first side panel portion and a lower end of the second side panel portion and extending toward the underlying structure, wherein the length of the first side panel portion in the x direction is shorter than the length of the second side panel portion in the y direction and is set to a length that exposes at least a portion of the multiple openings in the side portion of the ventilation member.

[0010] With this configuration, the corner member can be easily installed on a narrow parapet. Also, ventilation is possible through the exposed opening of the ventilation member.

[0011] The invention described in claim 2 is the same as the invention described in claim 1, in which the top plate portion has a horizontal portion whose inner end is fixed to the upper surface of the underlying structure and an inclined portion extending diagonally downward and outward from the outer end of the horizontal portion, and the bottom plate portion has a downward slope toward the first side plate portion and the second side plate portion.

[0012] With this configuration, rainwater that has entered the inside of the projected corner member is directed outward.

[0013] The invention described in claim 3 is the same as the configuration of the invention described in claim 1 or claim 2, further comprising an attachment portion extending downward from the underside of the bottom plate portion and fixed to the side portion of the underlying structure, and the top plate portion is fixed to the upper surface of the underlying structure.

[0014] With this configuration, the corner member is fixed to the base structure at two points: the top plate portion and the mounting portion.

[0015] The invention as set forth in claim 4 is formed by bending a single metal plate material formed into a predetermined shape in the configuration of the invention as set forth in claim 1 or claim 2.

[0016] Such a configuration reduces the number of parts.

[0017] The invention as set forth in claim 5 is the same as the invention as set forth in claim 3, in which an elastically compressible water-stopping material is disposed in a corner formed by the bottom plate portion and the mounting portion.

[0018] With this configuration, when the exterior material is placed on the surface of the mounting portion, the exterior material compressively deforms the water-stopping material.

[0019] The invention described in claim 6 is a ventilation structure for ventilating an internal space of a base structure extending in a longitudinal direction at a projecting corner portion under a headboard of a parapet, comprising a short-side ventilation member installed in the short-side direction of the base structure, a pair of long-side ventilation members installed in the long-side direction of the base structure, and a first projecting corner member and a second projecting corner member installed so as to cover two projecting corner portions formed by the short-side ventilation member and the pair of long-side ventilation members, respectively, and the short-side ventilation member has a short-side side surface portion in which a plurality of openings are formed at predetermined intervals along the short-side direction of the base structure so as to communicate with the internal space of the base structure, and each of the pair of long-side ventilation members communicates with the internal space of the base structure. The first corner member has a longitudinal side surface portion in which a plurality of ventilation holes are formed at predetermined intervals along the longitudinal direction of the underlying structure, and when the short side direction of the underlying structure is the x direction and the longitudinal direction of the underlying structure is the y direction, the first corner member has a first side panel portion in a rectangular flat plate shape that extends vertically in an installed state and is arranged so as to overlap part of the outer surface of the short side surface portion of the short side ventilation member, and a second side panel portion in a rectangular flat plate shape that is connected to the outer end part of the first side panel portion in the x direction and is arranged along the longitudinal direction of the underlying structure, and the length of the first side panel portion in the x direction is shorter than the length of the second side panel portion in the y direction and is set to a length in a range that exposes at least a portion of the multiple openings of the short side ventilation member.

[0020] With this configuration, even if a corner member is installed on a parapet in which opposing corners in the short side are close to each other, ventilation is possible through the exposed opening of the ventilation member on the short side.

[0021] The invention described in claim 7 is the configuration of the invention described in claim 6, wherein the second protruding corner member, in an installed state, comprises a first side panel portion having a rectangular flat plate shape that extends vertically and is arranged so as to overlap part of the outer surface of the short side side surface portion of the short side ventilation member, and a second side panel portion having a rectangular flat plate shape that is connected to the outer end portion in the x direction of the first side panel portion of the second protruding corner member and is arranged along the longitudinal direction of the underlying structure, and the length in the x direction of the first side panel portion of the second protruding corner member is longer than the length in the y direction of the second side panel portion.

[0022] With this configuration, the inner surfaces of the first side plate portions of the first and second projected corner members are in close contact with the outer surfaces of the shorter side surface portions of the shorter side ventilation members. Effect of the Invention

[0023] As explained above, the invention described in claim 1 makes it easier to install the corner members on narrow parapets, improving usability. In addition, ventilation is possible through the exposed openings of the ventilation members, improving the reliability of the ventilation performance in the short direction of the base structure.

[0024] The invention described in claim 2 has the same effect as the invention described in claim 1, and in addition, it prevents rainwater from penetrating into the interior of the underlying structure by directing rainwater that has penetrated inside the corner member outward.

[0025] The invention described in claim 3 has the same effects as the invention described in claim 1 or 2, in addition to the fact that the corner member is fixed to the underlying structure at two points, the top plate portion and the mounting portion, making the mounting state of the corner member strong and stable.

[0026] The invention as recited in claim 4 has the effects of the invention as recited in claim 1 or 2, and in addition, since the number of parts is reduced, it is advantageous in terms of cost.

[0027] The invention as recited in claim 5 has, in addition to the effect of the invention as recited in claim 3, when the exterior material is placed on the surface of the mounting portion, the exterior material compresses and deforms the water-stopping material, thereby sealing the gap between the corner member and the exterior material in a watertight manner, thereby forming a highly reliable water-stopping structure.

[0028] The invention described in claim 6 improves the reliability of the ventilation performance at the parapet end, because even when a corner member is installed on a parapet in which opposing corners in the short side are close to each other, ventilation is possible through the exposed opening of the ventilation member on the short side.

[0029] The invention described in claim 7 has the effect of the invention described in claim 6, and in addition thereto, the inner surfaces of the first side plate portions of the first and second protruding corner members are in close contact with the outer surfaces of the short-side side surface portions of the short-side ventilation member, thereby ensuring ventilation performance while stabilizing the installation state. [Brief description of the drawings]

[0030] [Figure 1] 1 is a schematic perspective view showing the external shape of a ventilation structure according to an embodiment of the present invention; [Diagram 2] 2 is a schematic perspective view showing the external shape of a longitudinal direction side ventilation member of the ventilation structure shown in FIG. 1. FIG. [Diagram 3] 2 is a development view showing a state before assembly of a first corner member of the ventilation structure shown in FIG. 1. FIG. [Figure 4] 2 is a schematic perspective view showing the external shape of the first corner member shown in FIG. 1. FIG. [Diagram 5] 5 is a view of the corner member shown in FIG. 4 as viewed in the direction of the arrow V. [Figure 6] 6 is a view of the corner member shown in FIG. 4 as viewed in the direction of the arrow VI. [Figure 7] FIG. 5 is an enlarged end view of line VII-VII shown in FIG. [Figure 8] 2 is a schematic perspective view showing the external shape of the second corner member shown in FIG. 1. FIG. [Figure 9] 2 is a schematic diagram showing an installation state of the longitudinal direction side ventilation member shown in FIG. 1. FIG. [Figure 10] 2 is a schematic perspective view showing a state in which the ventilation structure shown in FIG. 1 is used. FIG. [Figure 11] FIG. 2 is a plan view showing the ventilation structure shown in FIG. 1 in use. [Figure 12] 12 is a schematic enlarged cross-sectional view taken along line XII-XII shown in FIG. 11. [Figure 13] 13 is a schematic enlarged cross-sectional view taken along line XIII-XIII shown in FIG. 11. [Figure 14] FIG. 1 is a schematic perspective view showing the overall structure of a conventional ventilation structure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0031] FIG. 1 is a schematic perspective view showing the external shape of a ventilation structure according to an embodiment of the present invention.

[0032] 1, the ventilation structure 4 is installed on a base structure 50 made of wood such as a fence, a balcony railing, a parapet, etc. The base structure 50 extends in the longitudinal direction and has an upper surface portion 51 and a side surface portion 52, the inside of which forms a hollow internal space for ventilation.

[0033] In the following description, for convenience of explanation, the short side direction of the base structure 50 (x direction in FIG. 1) may be referred to as the x direction, and the long side direction of the base structure 50 (y direction in FIG. 1) may be referred to as the y direction.

[0034] The ventilation structure 4 comprises a ventilation member (short-side ventilation member) 2 installed in the short direction of the base structure 50 so as to communicate with the internal space of the base structure 50 extending in the longitudinal direction at a protruding corner portion under a fascia such as a parapet, a pair of longitudinal side ventilation members 3a, 3b installed in the longitudinal direction of the base structure 50, and protruding corner members (a first protruding corner member 1 and a second protruding corner member 10) respectively installed to cover two protruding corner portions formed by the short-side ventilation member 2 and the pair of longitudinal side ventilation members 3a, 3b.

[0035] Before describing the specific installation state of these projected corner members (the first projected corner member 1 and the second projected corner member 10), we will explain the longitudinal direction side ventilation member 3 and the transverse direction side ventilation member 2 that constitute the ventilation structure 4. First, the longitudinal direction side ventilation member 3 will be explained.

[0036] FIG. 2 is a schematic perspective view showing the external shape of a longitudinal direction side ventilation member of the ventilation structure shown in FIG.

[0037] 1 and 2, the longitudinal side ventilation member 3 is formed by bending a flat plate made of a steel material such as galvalume steel plate (registered trademark) having a long rectangular shape when viewed from the front in the short direction, and in the installed state shown in FIG. 1, is mainly composed of a top surface portion 61 attached to the upper surface portion 51 of the underlying structure 50, a main body portion 62 provided at the bottom of the top surface portion 61, having an air passage inside and equipped with an air vent 65 that connects the air passage to the outside air, a barrier portion 63 provided inside the main body portion 62 and against which rainwater that seeps in through the air vent 65 is collided, and an attachment plate portion 64 extending downward from the underside of the main body portion 62.

[0038] The main body 62 comprises a side surface portion (longitudinal side surface portion) 66 hanging down from one end of the top surface portion 61, and a bottom surface portion 67 extending from the lower end of the side surface portion 66 to the upper end of the mounting plate portion 64, and the barrier portion 63 is formed so as to extend from the upper end of the mounting plate portion 64 toward the side surface portion 66 at an acute angle with the bottom surface portion 67. A plurality of ventilation holes 65 are formed in the side surface portion 66 at predetermined intervals along the longitudinal direction of the base structure 50 so as to communicate with the internal space of the base structure 50.

[0039] The top surface portion 61 includes a main portion 68 on the free end side, and an inclined surface portion 69 on the side of the side portion 66 that is bent at a slight angle relative to the main portion 68.

[0040] The angle that the bottom surface portion 67 forms with the mounting plate portion 64 is set to be slightly smaller than a right angle, thereby providing a drainage gradient that slopes gently downward toward the side surface portion 66.

[0041] Next, the short-side ventilation member 2 will be described.

[0042] 1 again, the basic structure of the short-side ventilation member 2 is the same as that of the longitudinal-side ventilation member 3 described above, and a long ventilation member is cut to correspond to the short-side length of the base structure 50. In addition, a plurality of openings 75 are formed at a predetermined interval along the short-side direction of the base structure 50 in the side portion (short-side side portion) 76 so as to communicate with the internal space of the base structure 50. The openings 75 are provided for ventilation so that warm and moist air does not stagnate at the parapet end.

[0043] Next, the projected corner members (the first projected corner member 1 and the second projected corner member 10) will be described.

[0044] Fig. 3 is a development showing the state before assembly of the first projected corner member of the ventilation structure shown in Fig. 1, Fig. 4 is a schematic perspective view showing the external shape of the first projected corner member shown in Fig. 1, Fig. 5 is a view of the projected corner member shown in Fig. 4 as seen in the direction of arrow V, Fig. 6 is a view of the projected corner member shown in Fig. 4 as seen in the direction of arrow VI, and Fig. 7 is an enlarged end view of line VII-VII shown in Fig. 4. The up-down direction of the projected corner member after assembly shown in Figs. 4 to 7 is the same as the up-down direction in the installed state.

[0045] Referring to Figure 3, the corner members (first corner member 1 and second corner member 10) are formed by bending a blank plate (metal plate material) 30 which is punched out from a single metal plate such as a galvalume steel plate into the shape shown in Figure 3.

[0046] First, the first corner member 1 will be described.

[0047] Referring to Figures 1 and 4 to 7, the first corner member 1 is mainly composed of a first side panel portion 11 in the form of a rectangular flat plate that extends vertically in the installed state and is arranged so as to overlap part of the outer surface of the side portion 76 of the short side ventilation member 2, a second side panel portion 12 in the form of a rectangular flat plate that is connected to the outer end portion in the x direction (towards the outdoors in the installed state) of the first side panel portion 11 and is arranged along the longitudinal direction of the underlying structure 50, a top panel portion 13 that is connected to the upper end of the first side panel portion 11 and the upper end of the second side panel portion 12 and covers part of the upper surface portion 51 of the underlying structure 50, a bottom panel portion 14 that is connected to the lower end of the first side panel portion 11 and the lower end of the second side panel portion 12 and extends toward the underlying structure 50, and an attachment portion 15 that extends downward from the lower surface of the bottom panel portion 14. The length W1 in the x-direction of the first side plate portion 11 is shorter than the length W2 in the y-direction of the second side plate portion 12, and is set to a length that exposes at least a portion of the multiple openings 75 in the side portion 76 of the short-side ventilation member 2.

[0048] The top plate portion 13 has an L-shape when viewed from above, and comprises a horizontal portion 16 whose inner (leftward in Figure 7, toward the interior when installed and toward the center of the underlying structure when viewed from above) side end is fixed to the upper surface portion 51 of the underlying structure 50, and an inclined portion 17 extending diagonally downward and outward from the outer (rightward in Figure 7, toward the outdoors when installed) side end of the horizontal portion 16.

[0049] 5 to 7, the angle that the bottom plate portion 14 forms with the mounting portion 15 is set to be slightly smaller than a right angle, and thus the bottom plate portion 14 has a downward inclination toward the first side plate portion 11 and the second side plate portion 12. Moreover, the inclined portion 17 and the bottom plate portion 14 are disposed parallel to each other, and each is inclined obliquely downward toward the outside (toward the outdoors when installed).

[0050] The mounting portion 15 is connected to an inner end (facing the interior of the room when installed) of the bottom plate portion 14 and extends vertically downward.

[0051] A water-stopping material 18 is disposed in the corner formed by the bottom plate portion 14 and the mounting portion 15. The water-stopping material 18 is made of a material that is elastically deformable, impermeable, and resistant to deterioration over a long period of time, and for example, ethylene propylene diene rubber (EPDM) is used.

[0052] The effects of this configuration will be described later.

[0053] Next, the second corner member 10 will be described.

[0054] FIG. 8 is a schematic perspective view showing the external shape of the second corner member shown in FIG.

[0055] The second corner member 10 has basically the same shape as the first corner member, but is installed in a different direction. The second corner member 10 is mainly composed of a first side plate 21 having a rectangular flat plate shape that extends vertically and is arranged so as to overlap a part of the outer surface of the side surface 76 of the short-side ventilation member 2 in the installed state, a second side plate 22 having a rectangular flat plate shape that is connected to the outer end (toward the outdoors in the installed state) of the first side plate 21 in the x direction and arranged along the longitudinal direction of the base structure 50, a top plate 23 that is connected to the upper end of the first side plate 21 and the upper end of the second side plate 22 and covers a part of the upper surface 51 of the base structure 50, a bottom plate 24 that is connected to the lower end of the first side plate 21 and the lower end of the second side plate 22 and extends toward the base structure 50, and an attachment portion 25 that extends downward from the lower surface of the bottom plate 24.

[0056] Also, like the first corner member 1, the top plate portion 23 has an L-shape when viewed in a plane, and is provided with a horizontal portion 26 whose inner end is fixed to the upper surface portion 51 of the underlying structure 50, and an inclined portion 27 extending diagonally downward and outward from the outer end of the horizontal portion 26.

[0057] The angle that the bottom plate portion 24 forms with the mounting portion 25 is set to be slightly smaller than a right angle, so that the bottom plate portion 24 has a downward inclination toward the first side plate portion 21 and the second side plate portion 22. Moreover, the inclined portion 27 and the bottom plate portion 24 are disposed parallel to each other, and each is inclined obliquely downward toward the outside (toward the outdoors when installed).

[0058] The mounting portion 25 is connected to an inner (indoor direction in the installed state) end portion of the bottom plate portion 24 and extends vertically downward.

[0059] An elastically deformable water-stopping material 28 is disposed in the corner formed by the bottom plate portion 24 and the mounting portion 25 .

[0060] As described above, the second projected corner member 10 is installed in a different direction from the first projected corner member 1. That is, the surface of the side corresponding to the first side plate portion 11 of the first projected corner member 1 (the second side plate portion 22 of the second projected corner member 10) is disposed on the longitudinal side of the base structure 50, and the surface of the side corresponding to the second side plate portion 12 of the first projected corner member 1 (the first side plate portion 21 of the second projected corner member 10) is disposed on the lateral side of the base structure 50. The length W3 in the x direction of the first side plate portion 21 of the second projected corner member 10 is longer than the length W4 in the y direction of the second side plate portion 22, and is set to a length in a range that exposes at least a part of the multiple openings 75 of the side surface portion 76 of the lateral direction ventilation member 2.

[0061] Next, a specific procedure for assembling the projected corner members (the first projected corner member 1 and the second projected corner member 10) will be described.

[0062] Referring again to Figures 3 to 6, the blank plate 30 is mainly composed of a first side plate portion equivalent portion 31 corresponding to the first side plate portion of the assembled corner member (first corner member 1 and second corner member 10), a second side plate portion equivalent portion 32 corresponding to the second side plate portion, horizontal portion equivalent portions 36a, 36b corresponding to the horizontal portion of the top plate portion, inclined portion equivalent portions 37a, 37b corresponding to the inclined portion of the top plate portion, bottom plate portion equivalent portions 34a, 34b corresponding to the bottom plate portion, and mounting portion equivalent portions 35a, 35b corresponding to the mounting portion.

[0063] First, the first side plate portion 31 and the second side plate portion 32 of the blank plate 30 shown in Figure 3 are raised vertically along the connection portions with the bottom plate portion corresponding portions 34a, 34b, and the bottom plate portion corresponding portions 34a, 34b are bent so that they are inclined upward by approximately 3° relative to the first side plate portion 31 and the second side plate portion corresponding portion 32.

[0064] Next, the inclined portion corresponding portions 37a, 37b are bent so as to be parallel to the bottom surface corresponding portions 34a, 34b along the connection portions between the first side plate portion corresponding portion 31 and the second side plate portion corresponding portion 32. Then, the horizontal portion corresponding portions 36a, 36b are bent horizontally along the connection portions with the inclined portion corresponding portions 37a, 37b.

[0065] Next, the mounting portion equivalents 35a, 35b are bent vertically downward along the connection portions with the bottom plate equivalents 34a, 34b.

[0066] Next, the first side plate portion 31 is bent in a right angle direction in a plan view along the connection portion with the second side plate portion 32. At this time, the overlapping portion 38 extending from a part of the inclined portion corresponding portion 37b on the side connected to the second side plate portion 32 is disposed on the back side of the inclined portion corresponding portion 37a on the side connected to the first side plate portion 31. Also, the overlapping portion 39 extending from a part of the horizontal portion corresponding portion 36a on the side connected to the first side plate portion 31 is disposed on the back side of the horizontal portion corresponding portion 36b, and the bent piece 43 extending from a part of the horizontal portion corresponding portion 36b on the side connected to the second side plate portion is bent below the overlapping portion 39. Furthermore, the overlapping portion 40 extending from a part of the bottom plate portion corresponding portion 34a on the side connected to the first side plate portion 31 is disposed on the back side of the bottom plate portion corresponding portion 34b on the side connected to the second side plate portion 32. Furthermore, the overlapping portion 41 extending from a part of the mounting portion 35a on the side connected to the first side plate portion equivalent 31 is disposed on the back side of the mounting portion 35b on the side connected to the second side plate portion equivalent 32. Furthermore, the overlapping portions 42a, 42b extending from a part of the mounting portion 35b on the side connected to the second side plate portion equivalent 32 are disposed on the front side of the mounting portion 35a on the side connected to the first side plate portion equivalent 31, and the bent piece 44 extending from a part of the mounting portion 35a on the side connected to the first side plate portion equivalent 31 is bent upward with the overlapping portion 42b in between.

[0067] Finally, the waterproofing material 18 is attached with an adhesive or the like to the corner formed by the bottom plate portion 14 and the mounting portion 15, completing the first projected corner member 1 shown in Figs.

[0068] The above assembly procedure is merely an example and may be rearranged.

[0069] Next, a method for constructing the ventilation structure 4 shown in FIG. 1 will be described.

[0070] Figure 9 is a schematic diagram showing the installation state of the longitudinal side ventilation member shown in Figure 1, Figure 10 is a schematic oblique view showing the use state of the ventilation structure shown in Figure 1, Figure 11 is a plan view showing the use state of the ventilation structure shown in Figure 1, Figure 12 is a schematic enlarged cross-sectional view of line XII-XII shown in Figure 11, and Figure 13 is a schematic enlarged cross-sectional view of line XIII-XIII shown in Figure 11.

[0071] 9 to 13, first, the surface of the side portion 52 of the base structure 50 is covered with a moisture-permeable waterproof sheet 53 such as waterproof paper, and then the upper region including the upper surface portion 51 is covered with a saddle sheet 54 with higher waterproof performance. Then, furring strips 55 are installed on the side portion 52 of the base structure 50 via the waterproof sheet 53 and the saddle sheet 54.

[0072] Next, the longitudinal side ventilation members 3a, 3b are installed in the longitudinal direction of the base structure 50, and the transverse side ventilation member 2 is installed in the transverse direction of the base structure 50. At this time, the top surface parts 61, 71 of the longitudinal side ventilation members 3a, 3b and the transverse side ventilation member 2 are placed on the upper surface part 51 of the base structure 50, and the mounting plate parts 64, 74 are abutted against the surface of the furring strip 55. In this way, two protruding corner parts are formed by the transverse side ventilation member 2 and the pair of longitudinal side ventilation members 3a, 3b.

[0073] The protruding corner members (first protruding corner member 1 and second protruding corner member 10) are respectively installed to cover these two protruding corner portions. First, the first protruding corner member 1 is installed. Referring to Figure 13, at this time, the first side plate portion 11 of the first protruding corner member 1 is placed on the short side of the base structure 50. Then, the top plate portion 13 of the first protruding corner member 1 is placed on the upper surface portion 51 of the protruding corner portion of the base structure 50, and the mounting portion 15 is abutted against the surface of the furring strip 55b.

[0074] Next, the second projected corner member 10 is installed. The first projected corner member 1 and the second projected corner member 10 have the same shape, but the second projected corner member 10 is installed in a different direction from the first projected corner member 1. That is, the surface having the same shape as the first side plate portion 11 of the first projected corner member 1 (the second side plate portion 22 of the second projected corner member 10) is arranged on the longitudinal side of the base structure 50, and the surface having the same shape as the second side plate portion 12 of the first projected corner member 1 (the first side plate portion 21 of the second projected corner member 10) is arranged on the lateral side of the base structure 50. Referring to Figs. 12 and 13, the top plate portion 23 of the second projected corner member 10 is placed on the upper surface portion 51 of the projected corner portion of the base structure 50, and the mounting portion 25 is abutted against the surface of the furring strip 55a. When the first protruding corner member 1 and the second protruding corner member 10 are installed in this manner, as shown in Figure 1, the short-side side ends of the protruding corner members (first protruding corner member 1 and second protruding corner member 10) overlap part of the outer surface of the short-side ventilation member 2, and the long-side side ends overlap part of the outer surfaces of the long-side ventilation members 3a, 3b.

[0075] As shown in Fig. 4, the length W1 in the x direction of the first side plate portion 11 of the first projected corner member 1 is shorter than the length W2 in the y direction of the second side plate portion 12 of the first projected corner member 10. On the other hand, as shown in Fig. 8, the length W3 in the x direction of the first side plate portion 21 of the second projected corner member 10 is longer than the length W4 in the y direction of the second side plate portion 22 of the second projected corner member 10. Even if the length in the x direction of the first side plate portion 11 of the first projected corner member 1 and the length in the x direction of the first side plate portion 21 of the second projected corner member 10 are summed up (W1 + W3) in the installed state shown in Fig. 1, at least a part of the multiple openings 75 of the side surface portion 76 of the short-side ventilation member 2 is exposed.

[0076] Next, a nail or screw 80b is inserted through the mounting plate parts 64b, 74 and the mounting part 15 of the first projected corner member 1 and driven into the furring strip 55b, fixing the mounting plate parts 64b, 74 and the mounting part 15 to the furring strip 55b. Then, a nail or screw 80a is inserted through the mounting plate parts 64a, 74 and the mounting part 25 of the second projected corner member 10 and driven into the furring strip 55a, fixing the mounting plate parts 64a, 74 and the mounting part 25 to the furring strip 55a. As a result, the longitudinal direction side ventilation members 3a, 3b, the lateral direction side ventilation members 2 and the projected corner members (the first projected corner member 1 and the second projected corner member 10) are attached to the predetermined positions of the base structure 50, and the ventilation structure 4 as shown in FIG. 1 can be obtained. By installing the ventilation structure 4 in this manner, even when protruding corner members are installed on a parapet with opposing protruding corners in the short side direction close to each other, ventilation is possible through the exposed openings 75 of the short side ventilation member 2, improving the reliability of ventilation performance at the parapet end. Also, the inner surfaces of the first side plate portions 11, 21 of the first protruding corner member 1 and the second protruding corner member 10 are in close contact with the outer surface of the short side surface portion 76 of the short side ventilation member 2, ensuring ventilation performance and stabilizing the installation state.

[0077] Thereafter, the exterior materials 56a, 56b are attached to the sides of the base structure 50 via the furring strips 55a, 55b. At this time, the water-stopping materials 18, 28 arranged on the surfaces of the mounting parts 15, 25 are elastically compressed and deformed at the upper end faces and upper end sides of the back faces of the exterior materials 56a, 56b. In this way, the water-stopping materials 18, 28 fill the spaces between the exterior materials 56a, 56b and the mounting parts 15, 16 in a watertight manner to form a water-stopping structure, preventing water from entering the base structure 50 from this portion.

[0078] Furthermore, on the upper surface 51 of the base structure 50, the top surface portions 61, 71 of the short-side ventilation members 2 and the long-side ventilation members 3 and the edges of the top plate portions 13, 23 of the projected corner members (the first projected corner member 1 and the second projected corner member 10) are covered with a waterproof material (not shown) such as waterproof tape. This makes it possible to prevent water leakage from gaps between the top surface portions 61, 71 and the top plate portions 13, 23 and the saddle hanging sheet 54 to the base structure 50 side.

[0079] Next, the coping fixture 57 is fixed to the upper surface 51 of the base structure 50 using nails, screws, or the like (not shown).

[0080] Finally, the capping cover 58 is attached to the capping mounting fixture 57 so as to cover the upper surfaces of the short side ventilation member 2, the long side ventilation member 3, and the corner members (the first corner member 1 and the second corner member 10), and the capping end 59 is attached to the long side end of the capping cover 58, completing the construction of the ventilation structure 4.

[0081] Next, the effects of the projected corner members (the first projected corner member 1 and the second projected corner member 10) will be described.

[0082] As described above, the protruding corner member (first protruding corner member 1) is set so that the length W1 in the x direction of the first side plate portion 11 is shorter than the length W2 in the y direction of the second side plate portion 12. This eliminates the need to cut the length of the protruding corner member on-site to match the width of the parapet end when installing the protruding corner member on a narrow parapet. This makes it easier to install the protruding corner member on a narrow parapet, improving usability.

[0083] In the ventilation state, as shown by arrows A1 and A2 in Fig. 12, warm air inside the building flows up the ventilation passage that communicates with the attic space (not shown) and is discharged to the outside through each of the openings 75 in the short-side ventilation member 2. Also, as shown by arrows B1 and B2 in Fig. 13, air inside the building is also discharged to the outside through each of the ventilation openings 65 in the long-side ventilation member 3. On the other hand, when outside air is entering the building, the flow is opposite to that of the arrows in the figure. This prevents air from accumulating inside the coping (above the ventilation passage), and prevents condensation and decay.

[0084] As described above, in the installed state, the x-direction length W1 of the first side plate portion 11 of the projected corner member (first projected corner member 1) is set to a length that exposes at least a portion of the multiple openings 75 in the side surface portion 76 of the short-side ventilation member 2. Therefore, as shown in FIG. 1, the openings 75 of the short-side ventilation member 2 are not completely blocked by the projected corner member (first projected corner member 1 and second projected corner member 10), and ventilation is possible through the exposed openings 75. This improves the reliability of the ventilation performance in the short direction of the base structure 50.

[0085] In other words, the ventilation structure 4 includes a short-side ventilation member 2 installed in the short direction of the base structure 50 extending in the longitudinal direction at the projecting corner portion under the headboard of the parapet, a pair of longitudinal side ventilation members 3a, 3b installed in the longitudinal direction of the base structure 50, and a first projecting corner member 1 and a second projecting corner member 10 installed so as to cover two projecting corner portions formed by the short-side ventilation member 2 and the pair of longitudinal side ventilation members 3a, 3b, and the first projecting corner member 1 has a length W1 in the x direction of the first side plate portion 11 that is shorter than the length W2 in the y direction of the second side plate portion 12, and is set to a length in a range that exposes at least a part of the multiple openings 75 of the short-side ventilation member 2. By configuring in this way, even if a projecting corner member is installed on a parapet in which the projecting corners facing each other in the short direction are close to each other, ventilation is possible through the exposed openings 75 of the short-side ventilation member 2. This improves the reliability of the ventilation performance at the parapet end.

[0086] Meanwhile, rainwater blows into the parapet not only from above, but also from horizontally and diagonally below. As described above, by arranging the elastically compressible waterstop materials 18, 28 in the corners formed by the bottom plate portions 14, 24 and the mounting portions 15, 25, the exterior material 56 arranged on the surfaces of the mounting portions 15, 25 compresses and deforms the waterstop materials 18, 28. As a result, the gap between the projected corner members (the first projected corner member 1 and the second projected corner member 10) and the exterior material 56 is watertightly sealed, forming a highly reliable waterstop structure.

[0087] In addition, rainwater blown in from the horizontal direction or obliquely downward may partially infiltrate into the ventilation members mainly through the openings 75 of the short-side ventilation members 2 and the vents 65 of the long-side ventilation members 3. After that, it also infiltrates into the inside of the corner members (the first corner member 1 and the second corner member 10). However, as described above, the inclined parts 17, 27 and the bottom plate parts 14, 24 of the top plate parts 13, 23 of the corner members (the first corner member 1 and the second corner member 10) are arranged parallel to each other, and each is inclined downward toward the outside (toward the outdoors in the installed state). Therefore, the rainwater that has infiltrated into the corner members (the first corner member 1 and the second corner member 10) heads toward the outside (toward the outdoors in the installed state). This prevents the rainwater from infiltrating into the base structure 50.

[0088] Furthermore, the protruding corner members (first protruding corner member 1 and second protruding corner member 10) are provided with top plate portions 13, 23 fixed to the top surface portion 51 of the base structure 50, and mounting portions 15, 25 fixed to the side surface portion 52 of the base structure 50, so that the protruding corner members (first protruding corner member 1 and second protruding corner member 10) are fixed to the base structure 50 at two points, the top plate portions 13, 23 and the mounting portions 15, 25. Therefore, the mounting state of the protruding corner members (first protruding corner member 1 and second protruding corner member 10) is strong and stable.

[0089] Furthermore, since the corner members (first corner member 1 and second corner member 10) are formed by bending a single metal plate material 30 formed into a predetermined shape, the number of parts is reduced, which is advantageous in terms of cost.

[0090] In the above embodiment, no openings are formed in the first side plate portion, the second side plate portion, and the bottom surface of the projected corner member, but openings may be formed in the first side plate portion, the second side plate portion, and the bottom surface, or in any one of them. If openings are formed in the first side plate portion, the second side plate portion, and the bottom surface, or in any one of them, ventilation is possible through the openings in the projected corner member, further improving the reliability of the ventilation performance at the parapet edge.

[0091] In the above embodiment, the first side plate portion is connected to the second side plate portion in a direction perpendicular to the plan view, but the first side plate portion may have another shape as long as it covers the protruding corner portion. For example, the first side plate portion may be curved in part or in whole in plan view.

[0092] Furthermore, in the above embodiment, the first side plate portion and the second side plate portion have a rectangular flat plate shape, but may have other shapes as long as they are capable of covering the protruding corner portions.

[0093] Furthermore, in the above embodiment, the top plate portion has an L-shape in plan view, but may have another shape as long as it covers part of the upper surface of the protruding corner portion.

[0094] Furthermore, in the above embodiment, the corner members are made of steel plates, but they may be made of other materials, such as aluminum or synthetic resin.

[0095] Furthermore, in the above embodiment, the short-side ventilation members and the long-side ventilation members have a specific configuration, but this is not limiting and other configurations may also be used.

[0096] Furthermore, in the above embodiment, the inclined portion and the bottom plate portion are arranged in parallel, but they do not have to be arranged in parallel.

[0097] Furthermore, in the above embodiment, the top plate portion is composed of a horizontal portion and an inclined portion, but the inclined portion is not necessary. Also, the top plate portion may be entirely horizontal or entirely inclined.

[0098] Furthermore, in the above embodiment, the mounting portion is provided, but the mounting portion may be omitted.

[0099] Furthermore, in the above embodiment, the top plate portion is fixed to the upper surface of the base structure, but it does not have to be fixed thereto.

[0100] Furthermore, in the above embodiment, the gap between the ventilation member and the exterior material is sealed with a waterproof material made of EPDM, but other materials may be used as long as they are elastically deformable. Also, the installation location does not have to be the corner formed by the bottom plate part and the mounting part. Furthermore, the gap between the two may be filled with a caulking material or the like.

[0101] Furthermore, in the above embodiment, the ends of the top plate portion of the corner member and the top surface portion of the ventilation member are covered with waterproof material, but their undersides may also be attached with adhesive, double-sided adhesive tape, or the like.

[0102] Furthermore, in the above embodiment, the corner member is formed from one metal plate, but it may be manufactured by other methods, such as by welding two or more metal plates together.

[0103] Furthermore, in the above embodiment, the ventilation structure is used in the corner portion under the headboard of a narrow parapet, but the ventilation structure can also be used in the corner portion under the headboard of a wide parapet.

[0104] Furthermore, in the above embodiment, the short-side ventilation members may have other configurations as long as they are capable of ventilating the air within the base structure, such as a configuration that ventilates from the bottom surface or a configuration that ventilates from the top surface.

[0105] Furthermore, in the above embodiment, the longitudinal ventilation members are provided in the longitudinal direction of the base structure, but they do not have to be provided. They may be provided only in a part of the longitudinal direction, or may be provided continuously in the longitudinal direction.

[0106] Furthermore, in the above embodiment, the first and second protruding corner members have the same shape, but they do not have to be the same shape. If they are the same shape, the specifications of the first and second protruding corner members can be unified, which is advantageous in terms of cost. If they are not the same shape, for example, a symmetrical shape (a shape in which the first and second protruding corner members are plane-symmetrical along the center line of the base structure) can be mentioned. In that case, the exposed range of the opening of the short-side ventilation member can be further increased, resulting in a ventilation structure with further improved reliability in ventilation performance.

[0107] Furthermore, in the above embodiment, the x-direction length W3 of the first side plate portion of the second corner member is set to be longer than the y-direction length W4 of the second side plate portion of the second corner member, but W3 and W4 may be the same length, and the present invention includes lengths in which the x-direction length W3 of the first side plate portion is in a range that exposes at least a portion of the multiple openings of the short side ventilation member.

[0108] Furthermore, in the above embodiment, the y-direction length W2 of the second side plate portion of the first projected corner member and the x-direction length W3 of the first side plate portion of the second projected corner member are set to be the same length, but they do not have to be the same length. As long as the sum of the x-direction length of the first side plate portion of the first projected corner member and the x-direction length of the first side plate portion of the second projected corner member (W1+W3) is a length that exposes at least a part of the multiple openings of the short-side ventilation member, the difference in length of the second side plate portion relative to the first side plate portion may be different between the first projected corner member and the second projected corner member.

[0109] Furthermore, in the above embodiment, the multiple openings are formed in a specific shape and in a specific arrangement on the short-side side surface of the short-side ventilation member, but they may be formed in other shapes and arrangements. Also, no openings may be formed in the part that overlaps with the corner member in the installed state. In that case, all of the multiple openings on the short-side side surface of the short-side ventilation member will be exposed, and such a case is also included in the present invention. [Explanation of symbols]

[0110] 1…First corner member 2...Ventilation member (short side ventilation member) 3...Longitudinal side ventilation member 4. Ventilation structure 10...Second corner member 11...First side plate part 12…Second side plate part 13…Tabletop 14…Bottom plate part 15…Mounting part 16…Horizontal part 17…Slope part 18...Water-stopping material 21...First side plate part 22…Second side plate part 30…Metal plate material 50…Base structure 51...Top part 52...Side part 65…Ventilation hole 66…Longitudinal side surface 75...Aperture 76…Side part on the short side In addition, the same symbols in each figure indicate the same or corresponding parts.

Claims

1. A corner member is provided at a corner between the short side and the long side of a base structure under a cap board installed in the short side direction of the base structure, the corner member having a side portion with a plurality of openings formed at predetermined intervals along the short side direction of the base structure so as to communicate with an internal space of the base structure extending in the long side direction, the corner member being provided at a corner between the short side and the long side of the base structure, When the short side direction of the base structure is the x direction and the long side direction of the base structure is the y direction, A first side plate portion having a rectangular flat plate shape that extends vertically in an installed state and is arranged so as to overlap a part of an outer surface of the side portion of the ventilation member; a second side plate portion having a rectangular flat plate shape connected to an outer end portion of the first side plate portion in the x direction and arranged along the longitudinal direction of the base structure; a top plate portion connected to an upper end of the first side plate portion and an upper end of the second side plate portion and covering a part of an upper surface of the base structure; a bottom plate portion connected to a lower end of the first side plate portion and a lower end of the second side plate portion and extending toward the base structure; A corner member, wherein the length in the x direction of the first side plate portion is shorter than the length in the y direction of the second side plate portion and is set to a length that exposes at least a portion of the multiple openings in the side portion of the ventilation member.

2. The top plate portion includes a horizontal portion whose inner end is fixed to the upper surface of the base structure, and an inclined portion extending diagonally downward outward from an outer end of the horizontal portion, The corner member according to claim 1 , wherein the bottom plate portion has a downward inclination toward the first side plate portion and the second side plate portion.

3. The base structure further includes an attachment portion extending downward from a lower surface of the bottom plate portion and fixed to a side surface of the base structure, The corner member according to claim 1 or 2, wherein the top plate portion is fixed to an upper surface portion of the base structure.

4. 3. The corner member according to claim 1, which is formed by bending a single metal plate material formed into a predetermined shape.

5. The corner member according to claim 3 , further comprising an elastically compressible water-stopping material disposed in the corner formed by the bottom plate portion and the mounting portion.

6. A ventilation structure for ventilating the internal space of a base structure extending in the longitudinal direction at a corner portion under a parapet, A short-side direction ventilation member installed in the short-side direction of the base structure; A pair of longitudinal side ventilation members installed in the longitudinal direction of the base structure; a first corner member and a second corner member that are respectively installed so as to cover two corner portions formed by the short-side ventilation member and the pair of long-side ventilation members; The short-side ventilation member includes a short-side side surface portion having a plurality of openings formed at predetermined intervals along the short side of the base structure so as to communicate with an internal space of the base structure, Each of the pair of longitudinal side ventilation members has a longitudinal side surface portion in which a plurality of ventilation holes are formed at predetermined intervals along the longitudinal direction of the base structure so as to communicate with an internal space of the base structure, The first corner member includes a first side plate portion having a rectangular flat shape that extends vertically in an installed state when the short side direction of the base structure is defined as an x ​​direction and the long side direction of the base structure is defined as a y direction, and that is arranged so as to overlap a part of the outer surface of the short side side surface portion of the short side ventilation member; a second side plate portion having a rectangular flat shape that is connected to an outer end portion of the first side plate portion in the x direction and that is disposed along the longitudinal direction of the base structure; A ventilation structure, wherein the length of the first side plate portion in the x direction is shorter than the length of the second side plate portion in the y direction and is set to a length that exposes at least a portion of the multiple openings of the short-side ventilation member.

7. The second corner member has a rectangular flat first side plate portion that extends vertically in an installed state and is arranged so as to overlap a part of an outer surface of the short-side side surface portion of the short-side ventilation member; a second side plate portion having a rectangular flat shape that is connected to an outer end portion of the first side plate portion of the second corner member in the x direction and is arranged along the longitudinal direction of the base structure; The ventilation structure according to claim 6 , wherein a length of the first side plate portion of the second corner member in the x direction is longer than a length of the second side plate portion in the y direction.

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