JP6694257B2 - Drainage structure and waterway components - Google Patents

Description

  The present invention is intended to prevent water from entering a joint between a member disposed inside an outer wall member and a protrusion portion protrudingly joined to a member disposed inside the outer wall member. The present invention relates to a drainage structure and a waterway component that can discharge water on a waterproof member installed so as to cover at least an upper portion of the joint.

  In Patent Document 1, a waterproof cover covers a joint between an outer wall of a building and a projecting wall attached so as to be substantially orthogonal to the outer wall to prevent rainwater or the like from permeating to the joint. Possible waterproof structures are described. In the waterproof structure described in Patent Document 1, since only the waterproof cover is installed at the joint between the outer wall and the protruding wall, the waterproof treatment process for the joint can be easily performed.

JP, 2003-96936, A

  However, in the waterproof structure described in Patent Document 1 described above, although it is possible to prevent rainwater or the like from permeating to the joint between the outer wall and the protruding wall by the waterproof cover, rainwater or the like that is prevented from permeating is waterproof. It may stay on the cover and flow in an unintended direction, causing water to pass through to an unexpected location or water leakage from an unexpected location, and there is still room for improvement in terms of waterproofness.

  The present invention has been made in view of the above, and it is an object of the present invention to satisfactorily prevent water from stagnation on a waterproof member and prevent water permeation to an unexpected location or leakage from an unexpected location. ..

  The drainage structure and the waterway component of the present invention employ the following means in order to achieve the above object.

According to a preferred form of the drainage structure according to the present invention, a member disposed on the inner side of the building of the outer wall member, joined to protrude with respect to member disposed inside of the outer wall member of the building projects There is provided a drainage structure capable of discharging water on a waterproof member installed so as to cover at least an upper portion of the joint so as to prevent water from entering the joint. In the drainage structure, the member disposed inside the outer wall member of the building is at least one of a main pillar, a stud, a corner pillar, a furring strip, and a face material, and the projecting portion is an outer wall member of the building. The inside corner of the outer wall member of the building and the inside corner of the building, and penetrates between the outer wall member of the building and the member inside the outer wall member of the building . A discharge passage portion having a discharge port configured to discharge water to the outside and a guide passage portion configured to guide the water on the waterproof member to the discharge passage portion are provided.

  Here, the "member disposed inside the outer wall member" in the present invention typically corresponds to a main pillar, a stud, a corner pillar, a main pillar or a stud, and a furring strip attached and fixed to the corner pillar. However, it is a concept including a face material attached to these. The “waterproof member” in the present invention typically corresponds to a waterproof cover, but includes waterproof paper and waterproof tape. Further, as the aspect of "penetration between the outer wall member and the member disposed inside the outer wall member" in the present invention, typically, the outer wall member and the outer wall member are joined from the joint portion between the outer wall members. A mode in which water enters between the member arranged inside corresponds to this. The term “on the waterproof member” in the present invention is a concept that includes not only the upper surface of the waterproof member itself but also the upper surfaces of other members installed on the waterproof member.

  According to the present invention, for example, it has penetrated between the outer wall member and the member disposed inside the outer wall member from the joint portion between the outer wall members, and has flowed to the waterproof member along the back surface of the outer wall member. Since the water is guided to the discharge passage by the guide passage, the water stays on the waterproof member and flows in an unintended direction, which allows good penetration of water to unexpected places and leakage of water from unexpected places. Can be prevented.

According to a further aspect of the drainage structure of the present invention, the outer wall member of the building is configured to be installed on the waterproof member via the seal member. Then, at least a part of the guide passage portion is formed by the seal member.

  According to this aspect, at least a part of the guide passage is formed by the seal member that seals between the outer wall member and the waterproof member, which is rational.

  According to a further aspect of the drainage structure of the present invention, a plurality of discharge passage portions are provided. The guide passage portion is configured to guide water to the shortest discharge passage portion having the shortest distance to the discharge port among the plurality of discharge passage portions.

  According to this aspect, since water can be discharged through the shortest discharge passage portion having the shortest passage length, there is a risk of water leakage in the discharge process as compared with the case where water is discharged through the discharge passage having a long passage length. Can be reduced.

  According to a further aspect of the drainage structure of the present invention, the guide passage portion is configured to have a passage bottom surface that is inclined downward toward the discharge passage portion.

  According to this aspect, the inductivity to the discharge passage can be improved.

According to the preferred embodiment of the waterway component according to the present invention, the flat plate portion, the horizontal piece portion extending in a direction orthogonal to the flat plate portion, and the vertical piece extending in a direction perpendicular to the horizontal piece portion. A main pillar, a stud, and a waterproof member having a main body part having a piece part, an auxiliary part attached to the flat plate part, and a main part attached to the horizontal piece part and the vertical piece part. A member disposed inside the outer wall member of the building that is at least one of a corner post, furring strip, and face material, and a member disposed inside the outer wall member of the building inside the outer wall member of the building and when installed on a waterproof member for covering at least the upper portion of the joint portion between the projecting portion constituting the inner corner portion, between the flat-plate portion and the main portion, the inside of the outer wall member and the outer wall member of the building It is configured such that a water channel through which the invading water flows is formed between the disposed member and the member.

  According to the present invention, it is possible to favorably prevent water from accumulating on the waterproof member and causing water to pass to an unexpected location or leaking water from an unexpected location.

It is a perspective view which shows the construction state of the handrail wall 1 which applied the drainage structure which concerns on embodiment of this invention. It is a perspective view showing the outline of composition of discharge passage composition member 9. It is a perspective view which shows the outline of a structure of the waterway component 11. It is the top view which looked at the waterway component 11 from the upper part. It is explanatory drawing which shows a mode that the water which infiltrated into the clearance gap between the outer wall member 34 and the surface material 5 is discharged | emitted from the junction part of outer wall members 34 comrades. It is the front view which looked at the waterway constituent member 111 of a modification from the front.

  Next, the best mode for carrying out the present invention will be described using examples.

  In the drainage structure according to the embodiment of the present invention, for example, when a balcony is projected on the outer wall of a building, rainwater or the like is applied to a joint portion between the handrail wall 1 forming the balcony and the face material 5 attached to the pillar 3. Is a structure used for draining rainwater and the like accumulated on the waterproof cover 7 arranged so as to cover the upper part of the joint in order to prevent water permeation, and as shown in FIG. The discharge passage constituting member 9 and the water passage constituting member 11 arranged on the waterproof cover 7 are constituted. In the embodiment of the present invention, the front side (right side) of FIG. 1 with the handrail wall 1 in between is the inside of the balcony. The handrail wall 1 is an example of the “projection portion” in the present invention, and the pillar material 3 and the face material 5 are an example of the “member disposed inside the outer wall member” in the present invention.

  As shown in FIG. 2, the waterproof cover 7 is composed of a flat plate portion 7a that comes into contact with the face material 5 and a saddle-shaped portion 7b that comes into contact with the handrail wall 1. The saddle-shaped portion 7b is formed in a substantially inverted U shape when viewed from the front, and is connected to the flat plate portion 7a at one longitudinal end thereof so that the longitudinal direction of the saddle-shaped portion 7b is orthogonal to the flat plate portion 7a. .. The waterproof cover 7 is an example of the "waterproof member" in the present invention.

  As shown in FIG. 2, the waterproof cover 7 is arranged so that the connection corners between the flat plate portion 7a and the saddle-shaped portion 7b are aligned with the joint portion between the handrail wall 1 and the face material 5, It is attached to the handrail wall 1 and the face material 5 with a waterproof tape or the like. Although not shown, waterproof paper is attached to the handrail wall 1 and the face material 5 by stapling or the like. Therefore, the waterproof cover 7 is installed on the waterproof paper.

  The discharge passage constituting member 9 is composed of a base portion 9a formed in a substantially L shape in a plan view when viewed from above, and a waterproof material 9b attached to the base portion 9a, as shown in FIG. In addition, the handrail wall 1 and the face material 5 are installed in the entering corner portion (in FIG. 2, only the inside corner portion side of the inside corner of the balcony is shown). ..

  The base portion 9a is formed in an elongated shape and is configured to have a length that is substantially the same as the height of the handrail wall 1. The waterproof material 9b is provided on each side of the base portion 9a forming the L shape, and is attached along the longitudinal direction of the base portion 9a. The waterproof material 9b is formed of, for example, ethylene propylene diene rubber (EPDM).

  In this way, the space sandwiched between the two waterproof members 9b attached to each side of the base portion 9a constitutes a discharge passage 90 as shown in FIG. More specifically, as shown in FIG. 5, the outer wall member 32 attached to the handrail wall 1 in contact with one of the waterproof members 9b and the face member 5 in contact with the other waterproof member 9b. The discharge passage 90 is configured by closing the space sandwiched between the two waterproof members 9b except the upper and lower ends by the outer wall member 34 attached to the. The discharge passage 90 is an example of the “discharge passage portion” in the present invention, and the discharge passage 90 configured by the discharge passage constituting member 9 arranged at the inside corner of the balcony is the “shortest discharge” in the present invention. It is an example of a passage.

  The waterway component 11, as shown in FIGS. 3 and 4, includes a main body 13 and a waterproof material 15. As shown in FIG. 3, the main body portion 13 is composed of a flat plate portion 13a and a protruding portion 13b provided in a protruding shape with respect to the flat plate portion 13a. The flat plate portion 13a has a substantially L-shaped cutout that is substantially tilted in a front view.

  As shown in FIG. 3, the projecting portion 13b has a shape along the notch of the flat plate portion 13a, that is, a horizontal piece portion 23 that extends horizontally in the longitudinal direction of the flat plate portion 13a (left and right direction in FIG. 3), A vertical piece 25 extending in a direction perpendicular to the horizontal piece 23 is formed into a substantially L-shape in a front view, and extends from the cut edge in a direction orthogonal to the flat plate portion 13a. Existence

  As shown in FIG. 3, the waterproof material 15 includes an auxiliary portion 17 attached to the flat plate portion 13a and a main portion 19 attached to the protruding portion 13b. The auxiliary portion 17 is located on one end side of the flat plate portion 13a in the longitudinal direction (horizontal direction in FIG. 3), more specifically, on one of the side portions orthogonal to the longitudinal direction, which is farther from the bent portion of the cutout. It is attached along the side portion (the side portion having the shorter length, the side portion on the left side in FIG. 3). The waterproof material 15 is an example of the “sealing material” in the present invention.

  As shown in FIG. 4, the main part 19 has one end connected to the auxiliary part 17 and one end connected to the other end of the connection part 19a and extending in a direction perpendicular to the connection part 19a. And a vertical portion 19c connected to the other end of the linear portion 19b and extending in a direction perpendicular to the connecting portion 19a and the linear portion 19b.

  As shown in FIG. 4, the connecting portion 19a has a length that extends from the auxiliary portion 17 in the protruding direction of the horizontal piece portion 23 (downward in FIG. 4) to almost the center of the horizontal piece portion 23. There is. The straight portion 19b has a length that is substantially the same as the length of the lateral piece 23 in the protruding portion 13b in the longitudinal direction (the left-right direction in FIG. 4). The vertical portion 19c has a length that is substantially the same as the length in the extending direction (vertical direction in FIG. 3) of the vertical piece portion 25 in the protruding portion 13b.

  Here, by attaching the waterproof material 15 to the main body portion 13, as shown in FIGS. 3 and 4, a gutter-shaped water channel 92 is formed between the main portion 19 and the flat plate portion 13a. In addition, since the bottom surface 92a of the water channel 92 is configured by the protruding portion 13b, the cross-sectional shape of the water channel 92 taken along a plane along the longitudinal direction is substantially L-shaped.

  The waterway component 11 configured in this way is installed on the waterproof cover 7 attached to the handrail wall 1 and the face material 5 so as to cover the joint portion between the handrail wall 1 and the face material 5, as shown in FIG. It More specifically, in the waterway component 11, the horizontal piece 23 is placed on the saddle-shaped portion 7b of the waterproof cover 7, and the vertical piece 25 is the inside corner of the inside corner of the balcony. It is attached so that it is placed on the base portion 9a of the discharge passage constituting member 9 installed in the section.

  As a result, the vertical portion 19c of the main portion 19 of the waterproof material 15 corresponds to the space between the two waterproof materials 9b of the discharge passage forming member 9 installed at the inside corner of the balcony, as shown in FIG. The waterproof member 9b is disposed at a position and overlaps the waterproof member 9b disposed on the water channel 92 side of the two waterproof members 9b in the extending direction (vertical direction, vertical direction in FIG. 1). That is, the water passage 92 and the discharge passage 90 are communicatively connected.

  The waterway component 11 is fixed by bringing the flat plate portion 13a into contact with the furring strip 60 attached to the column member 3 via the face material 5 and driving a fastening member such as a nail into the flat plate portion 13a. It

  After the waterway component 11 is thus installed on the waterproof cover 7, the outer wall member 32 is attached to the handrail wall 1 via the furring strip 62 by a support tool (not shown) (see FIGS. 1 and 5), and the outer wall member 34. Is attached to the pillar 3 through the furring strip 60 by a support tool (not shown) (see FIG. 1). At this time, the outer wall member 32 is brought into contact with one of the waterproof members 9b of the discharge passage forming member 9 and the vertical portion 19c of the waterproof member 15 of the water channel forming member 11 as shown in FIG. As shown in FIG. 1, the waterproof part 15 of the water channel component 11 is brought into contact with the auxiliary part 17, the connecting part 19a and the straight part 19b.

  In this embodiment, the outer wall member 34 is attached by a horizontal lining method in which the longitudinal direction of the outer wall member 34 is horizontal, and one of the joints 82 of the outer wall members 34 is attached in the width direction of the handrail wall 1 ( It is constructed so as to be arranged in a substantially central portion in the left-right direction of FIGS. 1 and 5. That is, one of the joint portions 82 of the outer wall members 34 is arranged at a position facing the flat plate portion 13 a of the water channel component 11.

  Next, the operation of the drainage structure thus configured will be described with reference to FIG. Rainwater that has infiltrated from the joint portion 82 between the outer wall members 34 and dew condensation water that has occurred on the indoor side wall surface of the outer wall member 34 travels down the indoor side wall surface of the outer wall member 34 in the vertical downward direction toward the handrail wall 1. Flowing. Rainwater and dew condensation water flowing in the vertically downward direction are received by the water channel 92 formed by the water channel component 11.

  The rainwater and the condensed water received in the water channel 92 flow toward the white arrow D direction in FIG. 5 and flow into the discharge passage 90 (see the broken line arrow in FIG. 1), and from the discharge passage 90 through a draining member (not shown) or the like. Are discharged to the outside. Here, since the rainwater and the condensed water received in the waterway 92 are prevented from flowing out of the waterway 92 by the waterproof material 15, the rainwater and the condensed water received in the waterway 92 are directed in an unintended direction. It is possible to favorably prevent water permeation to unexpected places and leakage of water from unexpected places.

  Moreover, among the discharge passage constituent members 9 in which the water channel 92 is formed by the handrail wall 1 and the face material 5, the discharge passage constituent member 9 is installed in the corner portion inside the balcony. Since it is configured to communicate with the discharge passage 90 configured by, it is compared with the case where the discharge passage 90 configured by the discharge passage constituting member 9 installed in the entry corner on the outside of the balcony is communicated. The passage length to the discharge port is short, and the risk of water leakage during the discharge process can be reduced.

  The joint between the handrail wall 1 and the face material 5 is waterproofed and protected by the waterproof cover 7, waterproof paper (not shown) and waterproof tape (not shown) in addition to the water channel component 11. It is possible to prevent water permeation to the joint portion more reliably.

  In the present embodiment, the water channel 92 is configured by attaching the waterproof material 15 to the main body portion 13 installed on the waterproof cover 7, but it is not limited to this. For example, the water channel 92 may be configured by directly mounting the waterproof material 15 on the waterproof cover 7.

  In the present embodiment, a structure is provided in which the upper part of the joint is covered with a waterproof cover 7 in order to prevent rainwater and the like from permeating the joint between the handrail wall 1 forming the balcony and the face material 5 attached to the pillar 3. However, the joint portion may be waterproofed only with waterproof paper and waterproof tape. In this case, the waterway component 11 may be arranged on the waterproof paper and the waterproof tape.

  In the present embodiment, the lateral piece 23 of the protruding portion 13b forming the bottom surface 92a of the water channel 92 is configured to extend in the horizontal direction, but as illustrated in the water channel constituent member 111 of the modified example of FIG. The lateral piece 123 of the protrusion 13b forming the bottom surface 92a of the water channel 92 may have a downward slope toward the discharge passage 90. In this case, the straight portion 119b of the main portion 19 of the waterproof material 15 also has a configuration inclining downward toward the discharge passage 90.

  In the present embodiment, the water passage 92 is communicatively connected to the discharge passage 90 constituted by the discharge passage constituent member 9 arranged on the inside corner portion inside the balcony, but the present invention is not limited to this. For example, when the shortest discharge passage having a shorter passage length than the discharge passage 90 is provided, the water passage 92 may be connected to the shortest discharge passage. Alternatively, the water passage 92 may be communicatively connected to the discharge passage 90 constituted by the discharge passage constituent member 9 arranged on the side of the entry corner on the outside of the balcony.

  The present embodiment shows an example of a mode for carrying out the present invention. Therefore, the present invention is not limited to the configuration of this embodiment.

1 handrail wall (projection)
3 Pillars (members placed inside the outer wall members)
5 Face material (member placed inside the outer wall member)
7 Waterproof cover (waterproof member)
7a Flat plate portion 7b Saddle-shaped portion 9 Discharge passage constituent member 9a Base portion 9b Waterproof material 11 Water channel constituent member (water channel constituent member)
13 Main Body 13a Flat Plate 13b Projection 15 Waterproof Material (Seal Member)
17 Auxiliary part 19 Main part 19a Connection part 19b Straight part 19c Vertical part 23 Horizontal piece part 25 Vertical piece part 60 Furnace edge 62 Furnace edge 82 Joint part 90 Discharge passage (discharging passage part)
92 waterway (guidance passage part)
92a bottom (passage bottom)
111 Waterway components (waterway components)
119b Straight part 123 Horizontal piece

Claims (5)

A member disposed on the inner side of the outer wall member of a building, in order to prevent flooding of the projecting portion joined to protrude relative to the member disposed on the inner side of the outer wall member of the building, to the junction A drainage structure capable of discharging water on a waterproof member installed so as to cover at least an upper portion of the joint portion,
The member disposed inside the outer wall member of the building is at least one of a main pillar, a stud, a corner pillar, a furring strip, and a face material,
The projecting portion, on the inner side of the outer wall member of the building, constitutes a member and an inner corner portion arranged inside the outer wall member of the building,
A discharge passage portion having a discharge opening which penetrates the water configured to discharge to the outside between the member disposed on the inner side of the outer wall member and the building of the outer wall member of said building,
A guide passage portion configured to guide the water on the waterproof member to the discharge passage portion;
Drainage structure with.
The outer wall member of the building is configured to be installed on the waterproof member via a seal member,
The drainage structure according to claim 1, wherein at least a part of the guide passage portion is formed by the seal member.
A plurality of the discharge passage portions are provided,
The drainage structure according to claim 1 or 2, wherein the guide passage portion is configured to guide the water to the shortest discharge passage portion having the shortest distance to the discharge port among the plurality of discharge passage portions. The drainage structure according to any one of claims 1 to 3, wherein the guide passage portion has a passage bottom surface that is inclined downward toward the discharge passage portion. A main body having a flat plate portion, a horizontal piece portion extending in a direction orthogonal to the flat plate portion, and a vertical piece portion extending in a direction perpendicular to the horizontal piece portion; A waterproof material having an attached auxiliary portion and a main portion attached to the horizontal piece portion and the vertical piece portion, and at least one of a main pillar, a stud, a corner pillar, a furring strip, and a face material. a member disposed on the inner side of the outer wall member of the building, the joint portion between the projecting portion constituting the member and the inner corner portion of the inside of the outer wall member of該建thereof is disposed inside the outer wall member of the building when installed in at least the upper covering waterproofing member, between the main portion and the flat portion, flows water entering between the member disposed on the inner side of the outer wall member and the outer wall member該建product A waterway component in which a waterway is formed .

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