JP2017115396A - Draining member and draining structure of outer wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a draining member and a draining structure of outer wall capable of ensuring a ventiduct without exposing the ventiduct to the outside, free from staining on an opening, and capable of preventing degradation of outer wall over time while maintaining satisfactory appearance of a building.SOLUTION: The draining member is disposed to the upper edge of an opening which is formed in an outer wall, and which has the uppermost part on the upper edge of the opening and the lowermost part below the uppermost part. The draining member includes: a body part disposed along the opening; and a back board provided to the body part. The back board, which has an up-rising part rising upward along a thickness direction of the outer wall, is provided to the body part.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a draining member and a draining structure of an outer wall.

Conventionally, on the outer wall, an air passage is formed between the wall casing and the outer wall material, and the wall casing and the outer wall material are protected from corrosion due to moisture and condensation. On the other hand, in a wall case having an arch-shaped opening at the lower end, a parting material is attached so that the air passage is not exposed to the outside.
For example, in an outer wall having an opening serving as an entrance / exit provided on the outer periphery of a building as described in Patent Document 1, a lower end is connected to an arch-shaped wall case and an end of the arch of the wall case. And a wall housing. These wall housings form an opening having a vertical line on the opening side and an arch-shaped opening on the upper part of the opening. In addition, outer wall materials are provided apart from each other on the outer periphery of these wall housings, and the separated gaps serve as ventilation paths.
And the arch-shaped parting material of the same shape is attached to the wall housing and the arch-shaped lower end part of the outer wall material.
Specifically, the parting material is in contact with the lower end surface of the wall case and is spaced apart below the lower end of the outer wall material, and the parting material is provided between the outer wall material and the parting material. A gap is provided to fill the gap, and this gap serves as a vent for communicating between the ventilation path and the outside air.

Japanese Patent No. 5333465

However, in the wall frame ventilation structure described in Patent Document 1, for example, rainwater adhering to the outer wall material during rainy weather is transmitted to the lower end portion of the outer wall material and remains at the lower end portion due to surface tension. And since the lower end part is formed in the arch shape, it flows along the arch to the opening side part of the perpendicular line shape formed in the outer wall.
For this reason, since rainwater flows intensively through the opening side portion, the opening side portion is soiled by scales of rainwater or the like.
Therefore, the appearance of the outer wall formed by the wall frame and the outer wall material is detrimental, and particularly when the opening is the entrance of a building, it is easy to touch the human eye, so the influence of the contamination becomes extremely high. There is a problem.
Moreover, since rainwater flows intensively to the opening side portion, the opening side portion is exposed to more rainwater than other portions.
In particular, when water is immersed in a connecting portion between a wall housing having an arch-shaped lower end and a wall housing connected to the arch end, the housing structure of the outer wall is affected.
For this reason, the connection part also has a problem that deterioration with time such as corrosion due to rainwater becomes more severe than other parts.

  The present invention has been made in view of the above problems, and ensures a ventilation path, the ventilation path is not exposed to the outside, there is no fouling in the opening, the aesthetics of the building is maintained, and the aging of the outer wall is prevented. An object of the present invention is to provide a draining member to prevent and a draining structure of an outer wall.

  In order to solve the above-mentioned problem, the invention according to claim 1 is directed to the opening 31 on the outer wall 3 in which an opening 32 having an uppermost portion at the upper edge of the opening 31 and a lowermost portion below the uppermost portion is formed. A draining member 4 disposed at an edge, wherein the draining member 4 includes a body portion 41 provided along the opening 32 and a water return 44 provided in the body portion 41, and the water return 44 is characterized in that a rising portion 441 that rises upward along the thickness direction of the outer wall 3 is provided in the main body portion 41.

According to the first aspect of the present invention, the draining member disposed at the upper edge of the opening 31 of the outer wall 3 in which the opening 32 having the uppermost portion at the upper edge of the opening 31 and the lowermost portion below the uppermost portion is formed. 4, the draining member 4 includes a main body 41 provided along the opening 32, and a water return 44 provided on the main body 41. The water return 44 extends along the thickness direction of the outer wall 3. In addition, since the rising portion 441 that rises upward is provided in the main body portion 41, for example, it adheres to the outer wall 3 when it rains and travels to the side of the opening 31 along the upper edge 31 of the lower end of the outer wall 3. The rainwater is stopped from flowing by the water return 44, and flows out from the space surrounded by the outer wall 3, the main body 41, and the water return 44 to the outside of the wall surface.
For this reason, the opening 31 is not soiled by scales of rain water, and the appearance of the outer wall 3 is not liable to impair the aesthetics, and the appearance of the outer wall 3 can be maintained.
In particular, when the opening 31 of the outer wall 3 is an entrance / exit of the building 2, it is easy to touch the human eye, so that the effect of maintaining the aesthetics of the building 2 by eliminating the risk of contamination can be greatly enhanced.
Further, since the rainwater flow is stopped by the water return 44, rainwater does not adhere to the side of the opening 31. In particular, when the water is submerged from the side of the opening 31, the housing structure of the outer wall 3 will be affected, but the location is not exposed to more rainwater than other locations.
For this reason, the side part of the opening 31 does not have a risk that deterioration over time such as corrosion due to rainwater becomes more severe than in other parts.

  The invention according to claim 2 is, for example, as shown in 2-6-8, in the draining member 4 according to claim 1, the rising portion 441 is along the thickness direction of the outer wall 3, and A folding portion 441b that folds back to the uppermost side of the opening 32 is provided.

According to the invention described in claim 2, in the draining member 4 described in claim 1, the rising portion 441 rises along the thickness direction of the outer wall 3 and toward the top of the opening 32. Since 441b is provided, the rainwater traveling through the opening portion 32 can be stopped by the turn-back portion 441b and pushed away in the direction opposite to the side portion of the opening 31.
For this reason, rainwater does not flow to the side part of the opening 31, and the outer wall 3 can be more reliably protected from contamination by rainwater.

  The invention described in claim 3 is, for example, as shown in FIGS. 2-5 and 9, in the draining member 4 according to claim 1 or 2, the water return 44 follows the shape of the outer wall 3 to be attached. It is a shape.

According to the invention described in claim 3, in the draining member 4 according to claim 1 or 2, the water return 44 has a shape that follows the shape of the outer wall 3 to be attached, and therefore the water return 44 is attached to the outer wall 3. When this is done, it is not necessary to change the shape of the outer wall 3 in order to attach the water return 44, and the water return 44 can be easily attached.
For this reason, the draining member 4 can be easily attached to the outer wall 3.

  The invention according to claim 4 is the draining member 4 according to any one of claims 1 to 3, for example, as shown in FIG. 9, wherein the draining member 4 is the outer wall 3 of the opening 32. Further, a water stop plate 443 is provided which is in contact with the wall surface of the outer wall 3 and is provided integrally with the rising portion 441.

  According to the invention described in claim 4, in the draining member 4 according to any one of claims 1 to 3, the draining member 4 is formed at the end of the outer wall 3 of the outer wall 3 of the opening 32. Since there is a water stop plate 443 that comes into contact with the wall surface and is provided integrally with the rising portion 441, for example, when there is a lot of rain such as heavy rain or typhoon, there is a lot of rainwater that is transmitted to the side of the opening 31, and the rainwater is vigorous. The water stop plate 443 can prevent the rainwater splashed in the air passage V from hitting the water return 44 and adhering to the outer wall 3.

  The invention according to claim 5 is the draining member 4 according to any one of claims 1 to 4, for example, as shown in FIGS. 41 is provided with a hanging part 442 that hangs downward from 41.

According to the invention described in claim 5, in the draining member 4 according to any one of claims 1 to 4, the water return 44 is provided with a hanging part 442 that hangs downward from the main body part 41. As a result, rainwater adhering to the main body 44 travels to the side of the opening 31, the flow is stopped by the hanging part 442, and flows downward through the hanging part 442.
For this reason, rainwater adhering to the main body portion 41 can flow out downward from the hanging portion 442.
Therefore, the side part of the opening 31 is not fouled by scales of rainwater, and the appearance of the outer wall 3 can be maintained without the risk of impairing the aesthetics.
Furthermore, since the drooping portion 442 is provided, for example, when the condensation freezes in the vicinity of the drooping portion 442 in winter, the outer wall 3 is not directly damaged by frost.

  The invention according to claim 6 is, for example, a wall housing in which an opening 32 having an uppermost portion at the upper edge of the opening and a lowermost portion below the uppermost portion is formed as shown in FIGS. 7, an outer wall material 6 in which an opening 32 having an uppermost portion at the upper edge of an opening provided apart from the wall surface of the wall housing 7 and a lowermost portion below the uppermost portion is formed, and the opening 32. A draining structure 1 of the outer wall 3 provided with a draining member 4 attached to the outer wall 3, wherein the draining member 4 is provided in a long main body 41 provided along the opening 32 and the main body 41. The water return 44 is characterized in that the main body 41 is provided with a rising portion 441 that rises in the thickness direction of the wall housing 7 and rises upward.

According to the sixth aspect of the present invention, the wall housing 7 in which the opening 32 having the uppermost portion at the upper edge of the opening and the lowermost portion below the uppermost portion is formed, and the wall surface of the wall housing 7 is separated from the wall surface. A draining structure for the outer wall 3, comprising an outer wall member 6 having an opening 32 having an uppermost portion at the upper edge of the opening and a lowermost portion below the uppermost portion, and a draining member 4 attached to the opening 32. 1, the draining member 4 includes a long main body 41 provided along the opening 32, and a water return 44 provided on the main body 41. The water return 44 is a thickness of the wall housing 7. Since the rising portion 441 rising in the direction and rising upward is provided in the main body portion 41, for example, rainwater adhering to the outer wall material 6 during raining is along the opening 31 at the lower end portion of the outer wall material 6 on the opening 31 side. The gap between the outer wall material 6 and the protruding portion 42 Rainwater adhering to go along to the side of the opening 31 along the opening 31 of the main body portion 41.
Then, the rainwater transmitted to the side of the opening 31 is stopped by the water return 44 and flows out of the wall surface from the space surrounded by the wall housing 7, the main body 41, and the water return 44.
For this reason, the side part of the opening 31 and the connecting part J (the connecting part J is a boundary part between the opening part 32 and the other part of the opening 31) may be soiled by scales caused by rainwater. In addition, the appearance of the outer wall 3 formed by the wall housing 7 and the outer wall material 6 can maintain the aesthetic appearance of the outer wall 3 without fear of impairing the aesthetics.
In particular, when the opening 31 of the outer wall 3 is an entrance / exit of the building 2, it is easy to touch the human eye, so that the effect of maintaining the aesthetics of the building 2 by eliminating the risk of contamination can be greatly enhanced.
In addition, since the rainwater flow is stopped by the water return 44 separated from the connection portion J, rainwater does not adhere to the connection portion J and the side portions of the opening 31. In particular, when the water is flooded from the connection portion J, it will affect the frame structure of the outer wall, but the location is not exposed to more rainwater than other locations.
For this reason, there is no fear that the side portion of the connection portion J and the opening 31 will become more severely deteriorated over time, such as corrosion due to rainwater than other portions.
Furthermore, since the wall housing 7 and the water return 44 are provided apart from each other, for example, in the case where dew condensation freezes in the vicinity of the water return 44 in winter, the wall housing 7 is not provided in a separated state. However, even if the water return 44 is frozen, there is no possibility that the wall housing 7 is affected by the freezing damage.

  As for invention of Claim 7, as shown to FIGS. 2-5, 10 in the draining structure 1 of the outer wall 3 of Claim 6, the said main-body part 41 is the wall surface direction of the said wall housing 7, for example. A mounting portion 43 is provided that rises in contact with the wall surface.

According to the seventh aspect of the present invention, in the draining structure 1 of the outer wall 3 according to the sixth aspect, the main body portion 41 has the mounting portion 43 that is a rising portion that abuts against the wall surface along the wall surface direction of the wall housing 7. Since the mounting portion 43 is located outside the wall housing 7 in the gap between the outer wall material 6 and the main body portion 41, the joint between the main body portion 41 and the wall housing 7 is not exposed to the gap.
For this reason, there is no possibility that the infiltrated rainwater will infiltrate between the main body 41 and the wall housing 7, and the wall housing 7 can be more reliably protected from corrosion.

  The invention according to claim 8 is the draining structure 1 of the outer wall 3 according to claim 6 or 7, for example, as shown in FIGS. Is characterized by being integrally formed without a seam.

  According to the eighth aspect of the invention, in the draining structure 1 of the outer wall 3 according to the sixth or seventh aspect, the main body portion 41 and the attachment portion 43 are integrally formed without a seam. And the attachment part 43 is not exposed in the gap, and there is no fear that the infiltrated rainwater will infiltrate between the main body part 41 and the attachment part 43, and the wall housing 7 is more reliably protected from corrosion. can do.

  The invention according to claim 9 is, for example, as shown in FIG. 10, in the draining structure 1 of the outer wall 3 according to any one of claims 6 to 8, an edge portion along the wall surface direction of the wall casing 7. A projecting portion 42 projecting downward from the outer wall member 6 is provided, and the upper surface of the projecting portion 42 has an inclined surface that goes down in the projecting direction.

According to invention of Claim 9, in the draining structure 1 of the outer wall 3 as described in any one of Claim 6 to 8, it protrudes below the outer wall material 6 from the edge part along the wall surface direction of the wall housing 7. And the upper surface of the projecting portion 42 has an inclined surface that goes down in the projecting direction, and rainwater that has entered the gap between the outer wall material 6 and the projecting portion 42 is caused by the inclination of the upper surface of the projecting portion 42. It can be transmitted outward.
For this reason, rainwater that has entered the gap does not remain on the upper surface of the projecting portion 42, and the air passage V can be in a dry state in fine weather, thereby reliably protecting the wall frame 7 and the outer wall material 6 from corrosion. be able to.
Therefore, for example, it is not necessary to fill a part of the gap between the outer wall material 6 and the projecting portion 42 with a sealing material to arbitrarily limit the flow between the air passage V and the outside air, and only the draining member 4 is attached. Thus, the wall housing 7 and the outer wall material 6 can be protected from corrosion.

  According to the present invention, an air passage is secured, the air passage is not exposed to the outside, the opening is not fouled, the aesthetic appearance of the building is maintained, and the aging of the outer wall can be prevented.

It is an external view which shows the draining structure of the outer wall which concerns on embodiment of this invention. It is a perspective view which shows each member of the draining member which concerns on embodiment of this invention. It is a fragmentary perspective view which shows the water return which concerns on embodiment of this invention. It is a fragmentary perspective view which shows the water return which concerns on embodiment of this invention. It is a fragmentary perspective view which shows the water return which concerns on embodiment of this invention. It is a front view which shows the water return which concerns on embodiment of this invention. It is a side view which shows the water return which concerns on embodiment of this invention. It is a partial front view showing the state where the draining member concerning the embodiment of the present invention was attached to the wall frame. It is a fragmentary perspective view showing the state where the draining member concerning the embodiment of the present invention was attached to the wall frame. It is sectional drawing which shows the state in which the draining member which concerns on embodiment of this invention was attached to the wall frame. It is a perspective view which shows the state before the outer wall material is attached in the draining structure of the outer wall which concerns on embodiment of this invention. It is a figure which shows the variation of the structure of the wall housing and the column by which the draining structure of the outer wall which concerns on embodiment of this invention is employ | adopted.

  Embodiments of the present invention will be described below with reference to the drawings. However, the present embodiment described below includes various technically preferable limitations for carrying out the present invention. However, the technical scope of the present invention is limited to the following embodiments and illustrated examples. is not.

As shown in FIG. 1, the outer wall 3 that is provided so as to protrude outward from the building 2 is an entrance of the building 2 and has an opening 31 through which people can go. The outer wall 3 is provided with a wall housing 7 which is a hanging wall, and the lower end portion of the wall housing 7 has an uppermost portion located above the lowermost portion between one end and the other end which are the lowermost portions. The arch part 32 formed in the arch shape which is a shape is provided. Thereby, the upper edge of the opening 31 is similarly arched. The draining member 4 is attached to the arch portion 32.
The outer wall 3 is provided with a support 5 that is connected to the wall housing 7 at the end of the arch portion 32. The support body 5 is a wall housing or a pillar, and extends vertically from the ground to the wall housing 7. A location where the wall housing 7 and the support 5 are connected is referred to as a connection portion J.
Further, as shown in FIG. 8, the outer wall material 6 having a lower end portion having the same shape as the arch portion 32 is provided on the wall surface of the wall housing 7, and this separated space is used as the air passage V.

[Configuration of draining member]
The configuration of the draining member 4 according to the embodiment of the present invention will be described.
As shown in FIGS. 2 to 5, the draining member 4 includes a main body portion 41, a protruding portion 42, a mounting portion 43, a water return 44, and a draining drainer 45.
The main body 41 is a long plate material formed in an arch shape substantially the same as the arch portion 32 at the lower end of the wall housing 7.
The main body 41 can be made of, for example, an aluminum extruded shape, and can be formed into an arch shape substantially the same as the arch portion 32 at the lower end of the outer wall 3 by bending it.

The protruding portion 42 protrudes from the edge portion along the longitudinal direction of the main body portion 41, the thickness dimension is substantially the same as the thickness dimension of the main body portion 41, the lower surface is a horizontal plane, and the upper surface is directed downward in the protruding direction. It has an inclined surface that goes down.
Further, as shown in FIG. 10, the projecting portion 42 is provided so as to project from both side surfaces of the main body portion 41 with the center line along the longitudinal direction of the main body portion 41 as line symmetry, and outward from the outer surface of the outer wall material 6. Protruding to

Moreover, as shown in FIG. 10, the protrusion part 42 is formed in the hollow shape, and the protrusion-shaped engagement part 421 extended along the elongate direction is provided in the inside. The engaging portion 421 can be attached and fixed to the water return 44 by inserting a screw 444 through a water return 44 described later and engaging the screw 444 with the engagement portion 421.
Further, the protruding portion 42 is provided with a concave groove 422 on the lower surface along the longitudinal direction.

The attachment portion 43 is vertically aligned along the longitudinal direction at the boundary between the main body portion 41 and the projecting portion 42, in other words, when the draining member 4 is attached to the outer wall 3, at a position corresponding to the wall surface of the wall housing 7. And stand up.
Specifically, the attachment portion 43 is a pair of rail-like members that are provided at positions symmetrical with respect to the center line along the longitudinal direction of the main body portion 41 and are in contact with both surfaces of the wall surface of the wall housing 7. The mounting portion 43 provided on the outer side of the housing has a height dimension larger than that provided on the inner side.
Note that the attachment portion 43 is not fixed to the main body portion 41 and the protruding portion 42 with screws or the like, but is molded by the same member as the main body portion 41 and the protruding portion 42. In other words, the attachment portion 43 is formed integrally with the main body portion 41 and the projecting portion 42 without a seam.

  The water return 44 is provided at both ends of the longitudinal ends of the main body portion 41 and the protruding portion 42, and includes a rising portion 441, a hanging portion 442, a water stop plate 443, a screw 444, and a relay portion 445. I have.

The rising portion 441 is a member that rises from the main body portion 41 and the protruding portion 42, and includes a vertical portion 441a that rises in the vertical direction, and a folded portion 441b that folds back from the upper end of the vertical portion 441a to the top of the arch portion 32.
Note that the folded portion 441b is formed so that the width in the width direction of the main body 41 and the protruding portion 42 is substantially the same as the thickness of the spacer S described later, and is provided close to the inner side (wall surface side) of the vertical portion 441a. It has been. That is, when the outer wall material 6 is attached to the folded-back portion 441b with the side portion being in contact with the wall surface, the folded-back portion 441b fits inside the outer wall material 6 without a gap.

The hanging part 442 is a member that hangs down from the main body part 41 and the protruding part 42 toward the center of the opening.
The water stop plate 443 is a plate material that extends along the wall surface of the wall case 7 from the vertical portion 441 a and the folded portion 441 b on the outdoor side of the building 2. In addition, the water stop plate 443 is provided without a gap from the upper side of the adjacent attachment portion 43.
The screw 444 passes through the water return 44 and engages with the engagement portion 421 of the protrusion 42 described above, so that the water return 44 can be attached and fixed to both ends of the end portion in the longitudinal direction of the protrusion 42. It has become.

  The relay part 445 is a member located in the center of the water return 44 and relays the rising parts 441 on both the indoor and outdoor sides of the building 2. Further, the relay portion 445 is formed so as to abut on the side surface of the end portion of the main body portion 41 and rise in the vertical direction from the end portion of the main body portion 41. The rising dimension is smaller than that of the rising part 441. Due to the difference in dimension, the center of the water return 44 is notched, and the notched portion is fitted to the wall housing 7.

The draining drainer 45 is a metal member provided at both ends of the upper end of the arch shape of the opening 31, and is sandwiched between the wall housing 7 and the support body 5 and the draining member 4. Specifically, it is sandwiched between the upper surface of the main body portion 41, the attachment portion 43, the water return 44 and the wall case 7.
In addition, the draining member 4 is appropriately sealed at the joint of each member so that water can be prevented from entering between the members.
Further, a waterproof sheet A, which is a waterproof tape, is provided outside the mounting portion 43 so as to cover the boundary with the wall surface of the outer wall 3 that comes in contact with the boundary with the protruding portion 42, and the outer wall 3 is attached to the outer surface of the waterproof sheet A. An outer wall waterproof sheet B, which is a waterproof and moisture permeable sheet, is provided so as to cover the boundary between the outer wall 3 and the attachment portion 43.

Moreover, as shown in FIG. 12, the draining structure 1 of the outer wall 3 which concerns on this embodiment is employable when the support body 5 of the both sides of the arch part 32 of the outer wall 3 is a pillar (pillar-pillar). Also, it is possible to adopt a case where one side portion of the arch portion 32 is a wall frame and the other side portion is a column (wall-column or column-wall).
In addition, it is employable also when the support parts 5 on both sides of the arch part 32 are wall frames (wall-wall).

[Draining member installation method]
Next, a method for attaching the draining member 4 to the wall housing 7 will be described.
As shown in FIGS. 8 to 11, first, the outer wall waterproof sheet B is attached to the support 5 in the vicinity of both ends of the arch portion 32, and a draining drainer 45 is provided along the wall housing 7 or the support 5 from the outside. . The draining drainer 45 may be formed by combining a plurality of plate materials.
Thereafter, the draining member 4 has the main body portion 41 in contact with the arch portion 32 of the wall housing 7, the inner surfaces of the pair of attachment portions 43 abut on both surfaces of the wall surface of the wall housing 7, and the contact between the wall surface and the attachment portion 43. At the contact surface, the screw is attached to the wall housing 7 by, for example, screwing the screw into the wall housing 7. And the waterproof sheet A is affixed over the attachment part 43 and a wall surface so that the screw head of the screw screwed in the wall housing 7 may be covered.
Moreover, both ends of the longitudinal direction end portion of the draining member 4 are not provided to both end portions of the arch portion 32, respectively, and both end portions of the arch portion 32 and the draining member 4 are provided apart from each other. That is, the outer surface of the water return 44 does not abut against the wall housing 7 or the support 5 at both ends of the arch portion 32, and is disposed separately.

Next, as shown in FIG. 11, the outer wall waterproof / breathable sheet B continuous from the upper wall surface of the waterproof sheet A is attached to the wall casing 7, the support 5, and the attachment portion 43. A plurality of spacers S are appropriately attached to the outside. And by attaching the outer wall material 6 from the outside of these spacers S, the wall surface of the wall housing 7 and the outer wall material 6 are separated from each other in the thickness dimension of the spacer S. In the water return 44, the folded portion 441 b having a width dimension substantially the same as the thickness dimension of the spacer S is sandwiched between the wall surface and the inner surface of the outer wall material 6, and the vertical portion 441 a protrudes from the outer surface of the outer wall material 6.
Further, the space between the wall surface of the wall housing 7 and the outer wall material 6 separated by the spacer S serves as a ventilation path V for preventing corrosion of the wall housing 7, the support body 5, and the outer wall material 6.
In addition, as shown in FIG. 10, the lower end of the outer wall material 6 and the protrusion 42 are provided apart from each other, and this separated gap serves as a vent for the ventilation path V and the outside air. Further, the spacer S may be large or small, and may be appropriately adjusted so that the ventilation state of the ventilation path V is good.

[Operation of draining structure on outer wall]
Next, the operation of draining the outer wall draining structure will be described.
When rain falls on the building 2 in which the draining structure 1 of the outer wall 3 is adopted, rainwater adheres to the outer wall material 6, and the rainwater travels downward along the outer wall material 6. In this case, rainwater adhering to the outer wall material 6 above the arch portion 32 is transmitted to the arch portion 32. This rainwater travels along the arch portion 32 to the side of the arch portion 32, or raindrops that have flowed down from the arch portion 32 adhere to the lower protruding portion 42, and follow the arch shape of the protruding portion 42. It goes to the side of the protrusion 42.
Then, the rainwater that has traveled to the side of the projecting portion 42 is stopped by the rising portions 441 of the water return 44 provided at both ends of the longitudinal end portion of the draining member 4, and the wall housing 7 and the projecting portion It flows out of the wall surface from the space surrounded by 42 and the water return 44.
Further, the main body portion 41 and the projecting portion 42 do not extend to both ends in the longitudinal direction of the arch portion 32, and the wall housing 7 and the main body portion 41 are provided apart from each other at both ends. When the water whose flow is stopped by flowing out flows outward, it does not adhere to the wall housing 7 or the support 5 and falls to the ground.
In addition, since the folding part 441b is provided at the upper end of the vertical part 441a, for example, when there is a lot of rain, rainwater hits the water return 44 vigorously, and the folding part 441b does not get over the vertical part 441a. The flow is stopped. Further, when rainwater hits the water return 44 vigorously, the rainwater splashed in the air passage V is prevented from adhering to the wall housing 7 by the water stop plate 443.

In addition, rainwater that has entered the gap between the outer wall material 6 and the protruding portion 42 travels along the upper surface of the protruding portion 42 to the side of the protruding portion 42. Moreover, since the upper surface of the protrusion part 42 is an inclined surface that goes down toward the outside of the wall surface, the rainwater is transferred to the outside of the wall surface along the inclined surface while propagating the upper surface of the protrusion part 42 to the side of the protrusion part 42. Go to the direction.
Further, rainwater adhering to the side surface of the projecting portion 42 travels to the side of the projecting portion 42 along the vicinity of the lower surface of the projecting portion 42, and the flow is stopped by the drooping portion 442 of the water return 44. It flows down along the inner surface of 442.
In this case, since the hanging part 442 hangs down toward the center of the opening 31, rainwater does not adhere to the wall housing 7 or the support body 5 more reliably.

As described above, in this embodiment, for example, as shown in FIGS. 2 and 8-10, the wall housing 7 having the arch-shaped arch portion 32 at the lower end portion and the wall surface of the wall housing 7 are provided apart from each other. The drainage structure 1 of the outer wall 3 includes an outer wall member 6 having an arch-shaped arch portion 32 at a lower end portion, and a draining member 4 attached to the arch portion 32, wherein the draining member 4 includes the arch portion. 32, and a water return 44 provided at the longitudinal end of the main body 41. The main body 41 extends to both ends of the arch 32. The both ends are separated from the wall housing 7, the main body 41 is separated from the lower end of the outer wall material 6, and the water return 44 is separated from the longitudinal end of the main body 41. Because it has a rising part 441 that rises For example, rainwater adhering to the outer wall material 6 during rainy weather travels to the side of the arch portion 32 along the arch portion 32 at the lower end of the outer wall material 6 and adheres to the gap between the outer wall material 6 and the protruding portion 42. Rainwater travels along the arch part 32 of the main body part 41 to the side of the arch part 32.
Then, the rainwater transmitted to the side portion of the arch portion 32 is stopped by the water return 44 and flows out of the wall surface from the space surrounded by the wall housing 7, the main body portion 41 and the water return 44. .
Further, the main body 41 does not extend to both ends of the arch portion 32, and the both ends are separated from the connection portion J between the side portion and the upper portion of the opening 31, and therefore flow out to the outside of the wall surface. Rainwater does not adhere to the connection part J or the side part of the opening 31.
For this reason, the side part of the opening 31 and the connection part J are not soiled by scales or the like due to rain water, and the appearance of the outer wall 3 formed by the wall housing 7 and the outer wall material 6 is not likely to impair the aesthetics. 3 aesthetics can be maintained.
In particular, when the opening 31 of the outer wall 3 is an entrance / exit of the building 2, it is easy to touch the human eye, so that the effect of maintaining the aesthetics of the building 2 by eliminating the risk of contamination can be greatly enhanced.
In addition, since the rainwater flow is stopped by the water return 44 separated from the connection portion J, rainwater does not adhere to the connection portion J and the side portions of the opening 31. In particular, when the water is flooded from the connection portion J, it will affect the frame structure of the outer wall, but the location is not exposed to more rainwater than other locations.
For this reason, there is no fear that the side portion of the connection portion J and the opening 31 will become more severely deteriorated over time, such as corrosion due to rainwater than other portions.

In this embodiment, for example, as shown in FIGS. 2-5 and 9, the water return 44 has a shape that conforms to the shape of the wall housing 7 to be attached. Therefore, when the water return 44 is attached to the wall housing 7. In order to attach the water return 44, it is only necessary to cut the outer wall material 6 in accordance with the shape of the water return 44, and it is not necessary to change the shape of the wall housing 7, and the water return 44 can be easily attached.
For this reason, the draining member 4 can be easily attached to the outer wall 3.

  Further, in the present embodiment, the draining member 4 is in contact with the wall surface of the wall case 7 at the end in the longitudinal direction of the main body 41 on the outdoor side, and is a water stop provided integrally with the mounting portion 43 and the water return 44. Since the plate 443 is provided, for example, when there is a lot of rain such as heavy rain or typhoon, there is a lot of rain water that is transmitted to the side of the arch portion 32, and the rain water hits the water return 44 vigorously, and the rain water splashed in the ventilation path V is the wall The water stop plate 443 can be prevented from adhering to the housing 7.

In the present embodiment, the water return 44 is provided with a hanging portion 442 that hangs downward from the main body portion 41, so that rainwater adhering to the main body portion 41 follows the arch shape of the lower end portion of the main body portion 41. Therefore, the flow is transmitted to the side of the arch portion 32, the flow is stopped by the hanging portion 442, and flows downward through the hanging portion 442.
For this reason, rainwater adhering to the main body portion 41 can flow out downward from the hanging portion 442.
Therefore, the side portion of the opening 31 and the connecting portion J are not soiled by scales of rainwater, and the appearance of the outer wall 3 formed by the wall case 7 and the outer wall material 6 is not likely to impair the aesthetics. Can maintain its aesthetic.
Furthermore, since the drooping portion 442 is provided, for example, when the condensation freezes in the vicinity of the drooping portion 442 in winter, the outer wall 3 is not directly damaged by frost.

Further, in the present embodiment, the main body portion 41 includes the mounting portion 43 that rises in contact with the wall surface along the longitudinal direction, so that the gap between the outer wall material 6 and the main body portion 41 is outside the wall housing 7. The attachment portion 43 is positioned, and the joint between the main body portion 41 and the wall housing 7 is not exposed in the gap.
For this reason, there is no possibility that the infiltrated rainwater will infiltrate between the main body 41 and the wall housing 7, and the wall housing 7 can be more reliably protected from corrosion.

  In the present embodiment, the main body portion 41 and the attachment portion 43 are integrally formed without a seam, so that the seam between the main body portion 41 and the attachment portion 43 is not exposed in the gap, and intruded rainwater There is no fear of infiltration between the main body portion 41 and the attachment portion 43, and the wall housing 7 can be more reliably protected from corrosion.

Moreover, in this embodiment, the protrusion part 42 which protrudes in the downward direction of the outer wall material 6 from the edge part along the elongate direction of the main-body part 41 is provided, and the upper surface of the protrusion part 42 has the inclined surface which goes to a protrusion direction and falls. Therefore, rainwater that has entered the gap between the outer wall member 6 and the protruding portion 42 can be transmitted outward by the inclination of the upper surface of the protruding portion 42.
For this reason, rainwater that has entered the gap does not remain on the upper surface of the projecting portion 42, and the air passage V can be in a dry state in fine weather, thereby reliably protecting the wall frame 7 and the outer wall material 6 from corrosion. be able to.
Therefore, for example, it is not necessary to fill a part of the gap between the outer wall material 6 and the projecting portion 42 with a sealing material to arbitrarily limit the flow between the air passage V and the outside air, and only the draining member 4 is attached. Thus, the wall housing 7 and the outer wall material 6 can be protected from corrosion.

In the present embodiment, for example, as shown in FIGS. 2 and 3-9, the water return 44 is provided with a folded portion 441b that rises toward the center of the arch at the upper end of the vertical portion 441a. .
In this way, for example, when there is a large amount of rain such as a typhoon, there is no risk that rainwater flowing into the water return 44 will get over the vertical portion 441a and flow into the wall frame 7 or the support 5. The turn-back portion 441b can stop the flow even in rainwater that gets over the vertical portion 441a.

In this embodiment, before the main body portion 41 is attached to the arch portion 32, the draining drainer 45 is provided along the wall housing 7 or the support body 5 in the vicinity of both ends of the arch portion 32.
By doing so, the waterproof property can be further enhanced at both ends of the arch portion 32, that is, at the side portion of the opening 31, and it is possible to protect from corrosion due to water intrusion.

Moreover, in this embodiment, the attachment part 43 provided in the outer side of the building 2 shall be formed higher in height than what is provided in an inner side.
By doing so, more rainwater adheres to the outside of the building 2 than to the inside. In other words, the rainwater flowing to the side of the opening 31 is more on the outside than on the inside. Since the height of the mounting portion 43 is higher on the outer side than on the inner side, it is possible to prevent water from entering the wall housing 7 over the mounting portion 43.
In addition, for example, when the wind is strong like a typhoon and exposed to rain such as lying on the ground, there is a possibility that raindrops may jump into the gap between the outer wall material 6 and the protruding portion 42. However, since the height dimension of the attachment portion 43 is formed large, there is no possibility that raindrops may enter the wall housing 7.

As mentioned above, although this invention was concretely demonstrated based on this embodiment, this invention is not limited to the said embodiment, It can change in the range which does not deviate from the summary.
In the present embodiment, the draining structure 1 of the outer wall 3 is adopted as the variation of the column-column, wall-column, and column-wall. However, the present invention is not limited to this, and the wall-wall pattern may be employed.

In the present embodiment, the upper edge of the opening 31 is the arch-shaped arch portion 32, but the present invention is not limited to this. For example, it may have a shape that linearly inclines as it goes to the other end with one end of the opening 31 as the uppermost part, and inclines linearly as it goes to both ends with the approximate center of the opening 31 as the uppermost part. It may be a thing.
Furthermore, it may have a shape in which a plurality of arcs such as a three-leaf clover are combined, and may have a shape in which not only the upper edge of the opening 31 but also the substantially entire opening 31 has an arc shape.

DESCRIPTION OF SYMBOLS 1 Outer wall draining structure 2 Building 3 Outer wall 4 Draining member 5 Support body 6 Outer wall material 7 Wall housing 31 Opening 32 Arch part 41 Main body part 42 Projection part 43 Mounting part 44 Drainage draining 421 Engaging part 422 Groove 441 Standing part 441a Vertical portion 441b Folded portion 442 Dropped portion 443 Water stop plate 444 Screw 445 Relay portion A Waterproof sheet B Outer wall waterproof sheet J Connection portion S Spacer V Air passage

According to the invention described in claim 2, in the draining member 4 described in claim 1, the rising portion 441 is folded back 441 b along the thickness direction of the outer wall 3 and folded back to the uppermost side of the opening 32. Therefore, the rainwater traveling through the opening 32 can be stopped by the folded portion 441b and can be pushed away in the direction opposite to the side of the opening 31.
For this reason, rainwater does not flow to the side part of the opening 31, and the outer wall 3 can be more reliably protected from contamination by rainwater.

Claims (9)

A draining member disposed on the upper edge of the opening of the outer wall in which an opening having an uppermost portion on the upper edge of the opening and a lowermost portion below the uppermost portion is formed,
The draining member is
A main body provided along the opening;
A water return provided in the main body,
The draining member is characterized in that a rising portion that rises upward along the thickness direction of the outer wall is provided in the main body portion. The draining member according to claim 1,
The draining member, wherein the rising portion includes a folded portion that rises along the thickness direction of the outer wall and toward the uppermost portion of the opening. In the draining member according to claim 1 or 2,
The draining member according to claim 1, wherein the water return has a shape along the shape of the outer wall to be attached. In the draining member according to any one of claims 1 to 3,
The water draining member is provided with a water stop plate that comes into contact with the wall surface of the outer wall and is provided integrally with the rising portion. In the draining member according to any one of claims 1 to 4,
The draining member according to claim 1, wherein the water return is provided with a hanging part that hangs downward from the main body part. A wall housing in which an opening having an uppermost portion at the upper edge of the opening and a lowermost portion below the uppermost portion is formed;
An outer wall material in which an opening having an uppermost portion at the upper edge of the opening provided apart from the wall surface of the wall case and a lowermost portion below the uppermost portion is formed;
A draining structure of the outer wall comprising a draining member attached to the opening,
The draining member is
A main body provided along the opening;
A water return provided in the main body,
The draining structure of the outer wall is characterized in that the water return is provided with a rising portion rising in the thickness direction of the wall housing and rising upward. In the draining structure of the outer wall according to claim 6,
The water draining structure for an outer wall, wherein the main body portion includes an attachment portion that is a rising portion that abuts against the wall surface along a wall surface direction of the wall housing. In the draining structure of the outer wall according to claim 6 or 7,
The draining structure of the outer wall, wherein the main body portion and the attachment portion are integrally formed without a seam. In the draining structure of the outer wall according to any one of claims 6 to 8,
Protruding portions that protrude downward from the outer wall material from the edge along the wall surface direction of the wall housing are provided,
The draining structure of the outer wall, wherein the upper surface of the projecting portion has an inclined surface that goes down in the projecting direction.

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