JP2014114660A - Drainage structure of building, and building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drainage structure of a building that can secure a drainage path even for an inset sash, and the building.SOLUTION: A head jamb 52 of a sash 50 is provided with a hollow part 64, and the head jamb 52 has a communication port 52B formed to communicate with a hollow part 38A formed in an upper floor-side outer wall panel 30A. Further, a jamb 54 has a hollow part 72 formed to communicate with the hollow part 64 of the head jamb 52 through the communication port 52D formed at the head jamb 52, and a sill 58 is provided with a drainage part 76 which communicates with the hollow part 72 of the jamb 54 to drain water flowing in the hollow part 72 to an outdoor side. Consequently, the water flowing in the hollow part 38A of an outer wall panel 30 is guided to the drainage part 76 through the hollow part 72 of the jamb 54 after being guided into the hollow part 64 of the head jamb 52 through the communication port 52B of the head jamb 52 to be drained to the outdoor side through the drainage part 76. Therefore, a drainage path can be secured even for an inset sash.

Description

  The present invention relates to a building drainage structure and a building.

  Patent Document 1 discloses a secondary drainage structure for an outer wall sash opening frame. Specifically, the secondary waterproofing material portion of the opening lower side arranged along the lower side of the opening base frame of the sash (frame body) is continued to the lower side portion of the secondary waterproofing material of the left and right sides, and the left and right sides of the opening The lower end of the secondary water-stopping material portion is separated from the secondary water-stopping material portion on the lower side of the opening.

  And from the sash peripheral space between the opening left and right side secondary waterproofing material part and the sash, the separation part between the opening right and left side secondary waterproofing material part and the opening lower side secondary waterproofing material part, and the left and right sides A drainage path that opens to the vertical joint ground space that is outside of the left and right sides of the panel outer peripheral frame is provided via a distant portion between the secondary waterproof material upper part and the left and right side secondary waterproof material lower parts. ing.

JP 2008-127790 A

  However, in this prior art, since the drainage path is provided in the back space of the vertical joint provided on the outside of the sash, it is applied to a so-called inset sash in which the sash is arranged indoors rather than the outer wall surface. In this case, the space behind the vertical joint does not exist and it is difficult to secure a drainage path.

  An object of the present invention is to obtain a drainage structure of a building and a building that can secure a drainage path even with an inset sash in consideration of the above facts.

  The drainage structure for a building according to the first aspect of the present invention includes a hollow outer wall material in which a first hollow portion is formed along a vertical direction of an outer wall, and at least a part of the outer wall surface on the indoor side of the outer wall surface of the hollow outer wall material. And a drainage means that is provided on the frame and communicates with the first hollow portion and discharges water flowing in the first hollow portion to the outdoor side.

  The drainage structure for a building according to the first aspect of the present invention includes a hollow outer wall member in which a first hollow portion is formed along the vertical direction of the outer wall, and at least a part of the hollow outer wall member is more than the outer wall surface of the hollow outer wall member. A frame is arranged inside (so-called inset sash). Thereby, even if it does not provide unevenness in the design surface (outer wall surface) of the outer wall, the shadow of the building can be emphasized, and the appearance of the building is improved.

  Further, in the present invention, the frame body is provided with a discharging means, and the water flowing in the first hollow portion in communication with the first hollow portion is discharged to the outdoor side. Here, generally, the horizontal joint and the vertical joint of the outer wall are sealed with a sealing material such as an irregular seal. However, the sealant is broken in the vertical joint and the horizontal joint due to the sealing material being cut off. It is assumed that water (rain water or the like) enters the inner side and the water flows in the first hollow portion formed in the hollow outer wall material. In the present invention, the water flowing through the first hollow portion of the hollow outer wall material can be discharged to the outdoor side by the drainage means provided on the frame. That is, it is not necessary to provide a drainage channel that connects the frame body and the outer wall surface of the outer wall, and the appearance is improved.

  A building drainage structure according to a second aspect of the present invention is the building drainage structure according to the first aspect, wherein the drainage means constitutes an upper portion of the frame and communicates with the first hollow portion. A vertical frame in which a second hollow portion is formed along the horizontal direction and a side portion of the frame body, and a third hollow portion communicating with the second hollow portion is formed along the vertical direction. A frame and a lower frame that constitutes a lower portion of the frame body, is communicated with the third hollow portion, and is provided with a discharge portion that discharges water flowing in the third hollow portion to the outdoor side. ing.

  In the building drainage structure according to the second aspect of the present invention, the drainage means includes an upper frame constituting the upper part of the frame, a vertical frame constituting the side part of the frame, and a lower part constituting the lower part of the frame. And a frame. In the upper frame, a second hollow portion communicating with the first hollow portion formed in the hollow outer wall material is formed along the horizontal direction. Moreover, the 3rd hollow part connected with the 2nd hollow part formed in the upper frame is formed in the vertical frame along the perpendicular direction. Furthermore, the lower frame is provided with a discharge portion that communicates with the third hollow portion formed in the vertical frame and discharges the water flowing in the third hollow portion to the outdoor side.

  For this reason, the water flowing through the first hollow portion formed in the hollow outer wall material is guided into the second hollow portion formed in the upper frame of the frame body. Since the second hollow portion communicates with the third hollow portion formed in the vertical frame, the water guided into the second hollow portion is guided into the third hollow portion. Since this 3rd hollow part is connected with the discharge part provided in the lower frame of the frame, the water guided in the 3rd hollow part is discharged | emitted to the outdoor side through the said discharge part.

  The building according to a third aspect of the present invention is the building drainage structure according to the second aspect, wherein a portion of the lower end portion of the hollow outer wall member is opposed to a first hollow portion formed in the hollow outer wall member. In addition, a draining member into which another part is inserted into the second hollow portion is provided.

  In the building which concerns on this invention of Claim 3, the draining member is provided in the lower end part of the hollow outer wall material. The draining member is formed so that a part thereof is opposed to the first hollow part formed in the hollow outer wall member and the other part is inserted into the second hollow part. Can be reliably guided into the second hollow portion of the upper frame.

  According to a fourth aspect of the present invention, in the building drainage structure according to the second or third aspect, the drainage portion is provided on the outdoor side of the vertical frame.

  In the building which concerns on this invention of Claim 4, since the drainage part is provided in the outdoor side rather than the vertical frame, through the 3rd hollow part of the vertical frame arrange | positioned indoors rather than the outer wall surface of a hollow outer wall material The flowing water can be guided to the outdoor side by the drainage part.

  The building which concerns on this invention of Claim 5 discharges the water which flows in the hollow outer wall material of any one of Claims 1-4, and the 1st hollow part with which the said hollow outer wall material is equipped to the outdoor side. The drainage means according to any one of claims 1 to 4 is provided.

  In the building according to the fifth aspect of the present invention, the water flowing in the first hollow portion of the hollow outer wall material is discharged to the outdoor side by the drainage means, thereby ensuring the drainage path of the building. it can.

  As described above, the building drainage structure according to the first aspect of the present invention has an excellent effect that a drainage path can be secured even with an inset sash.

  The drainage structure for a building according to the present invention according to claim 2 has an excellent effect that the waterproof performance of the building can be improved with a simple configuration.

  The drainage structure for a building according to the third aspect of the present invention has an excellent effect that water flowing in the hollow portion of the hollow outer wall material can be guided into the inset sash.

  The drainage structure for a building according to the present invention described in claim 4 has an excellent effect that the water in the inset sash can be guided to the outdoor side.

  The building according to the present invention described in claim 5 has the excellent effect that the maintenance cost of the building can be reduced by securing the drainage path of the building, and the economic burden on the user can be reduced. Have.

It is a perspective view which shows the sash to which the drainage structure of the building which concerns on this Embodiment was applied. It is a disassembled perspective view which shows the principal part of the sash to which the drainage structure of the building which concerns on this Embodiment was applied. It is sectional drawing which shows the state cut | disconnected along the 3-3 line of FIG. It is an expanded sectional view which shows the upper part of FIG. It is an expanded sectional view which shows the lower part of FIG. It is a perspective sectional view showing the outer wall where an extrusion-molded cement board was used. It is a front view which shows the sash to which the drainage structure of the building which concerns on this Embodiment was applied. It is a front view which shows the sash as a comparative example.

The building drainage structure according to the present embodiment will be described below with reference to the drawings.
First, the building 10 will be described. As shown in FIG. 6, for example, an extruded cement board (ECP) is used for the outer wall panel 30 constituting the outer wall 11 of the building 10, and the outer wall panel 30 is divided for each layer. The outer wall panel 30 includes an outer wall portion 32 that is disposed on the outdoor 17 side and forms a design surface, and an inner wall portion 34 that is disposed in parallel to the outer wall portion 32. A plurality of connecting portions 36 that vertically connect the outer wall portion 32 and the inner wall portion 34 are provided between the inner wall portion 34 and the inner wall portion 34 at a predetermined pitch.

  That is, the outer wall panel 30 has a plurality of hollow portions 38 as first hollow portions extending along the height direction at a predetermined pitch. The hollow portion 38 includes a hollow portion 38A of an outer wall panel on the upper floor side (hereinafter referred to as “upper floor side outer wall panel”) 30A and an outer wall panel on the lower floor side (hereinafter referred to as “lower floor side outer wall panel”) 30B. The hollow portions 38B are arranged so as to communicate with each other continuously in the building height direction.

  On the other hand, a horizontal joint 40 is provided between the upper floor side outer wall panel 30A and the lower floor side outer wall panel 30B. In the outer wall panel 30 on the same floor, the vertical wall between the left and right outer wall panels 30 is provided. A joint 42 is provided. These horizontal joints 40 and vertical joints 42 are provided with joint seal backers 43 for ensuring the waterproof performance of the building 10, and the joint seal sticker 43 has an irregular seal on the outdoor 17 side. 44 is filled. However, when a so-called seal breakage occurs in the horizontal joint 40 and the vertical joint 42, rainwater enters the indoor 15 side through the horizontal joint 40 and the vertical joint 42, and the inside of the hollow portion 38 </ b> A formed in the outer wall panel 30. The water may flow.

(Structure of the drainage structure of the building)
Here, the structure of the drainage structure of the building which concerns on this Embodiment is demonstrated.

  As shown in FIGS. 1 and 3, at least a part of the building 10 (a vertical frame 54 described later) is recessed from the outer wall surface 11 </ b> A of the outer wall panel 30 toward the indoor 15 side (disposed on the indoor 15 side). ) In the state is provided with a sash 50 as a frame (so-called inset sash). A rail 50A is provided inside the sash 50, and the glass 51 is movable along the rail 50A. Of course, it may be a glass of the type of slaughter.

 The sash 50 includes an upper frame 52 that constitutes an upper portion of the sash 50 and extends along the horizontal direction, and a pair of vertical frames 54 that respectively constitute side portions of the sash 50 and extend along the vertical direction. And a lower frame 58 that forms the lower part of the sash 50 and extends in the horizontal direction.

  As described above, the vertical frame 54 is disposed at the back of the inner edge wall 62 of the opening 60 of the outer wall panel 30 in a state of being recessed from the outer wall surface 11A toward the indoor 15 side. For this reason, in the part in which the vertical frame 54 is provided, the inner edge wall 62 of the opening 60 is exposed on the external appearance of the building 10. On the other hand, the positions of the front surfaces of the upper frame 52 and the lower frame 58 are substantially flush with the outer wall surface 11 </ b> A of the outer wall panel 30.

  As shown in FIGS. 2 and 4, the upper frame 52 of the sash 50 has a rectangular tube shape, and a hollow portion 64 as a second hollow portion is provided along the horizontal direction. The upper wall 52A of the upper frame 52 has a rectangular communication port 52B that communicates the hollow portion 38A formed in the upper floor side outer wall panel 30A and the hollow portion 64 along the longitudinal direction of the upper frame 52. Is formed. A reinforcing piece 66 formed in a crank shape is provided in the upper frame 52 to reinforce the upper frame 52.

  Here, the bracket 68 whose cross-sectional shape cut | disconnected along the perpendicular direction comprises L shape is being fixed to the lower end part of the back surface of 30 A of upper floor side outer wall panels. On the back surface of the bracket 68 and the outer wall panel 30, a draining member 70 having a crank-shaped cross section cut along the vertical direction is disposed.

  The draining member 70 includes a vertical wall 70A that opposes the vertical wall 68A of the bracket 68, a horizontal wall 70B that is a part of the draining member 70 that opposes the horizontal wall 68B of the bracket 68, and a vertical direction from the tip of the horizontal wall 70B. And a hanging wall 70 </ b> C as another part of the draining member 70 that hangs down.

  The vertical wall 70 </ b> A of the draining member 70 is disposed between the vertical wall 68 </ b> A of the bracket 68 and the back surface of the outer wall panel 30. Further, the horizontal wall 70B of the draining member 70 is disposed between the horizontal wall 68B of the bracket 68 and the lower end surface of the upper floor side outer wall panel 30A, and is opposed to the lower end surface of the upper floor side outer wall panel 30A and partly. It faces the hollow portion 38A. Further, the hanging wall 70 </ b> C of the draining member 70 is inserted into the hollow portion 64 through a communication port 52 </ b> B formed in the upper frame 52.

  On the other hand, a pair of vertical frames 54 are provided at both ends of the upper frame 52 in the longitudinal direction. Each of the vertical frames 54 has a rectangular tube shape, and a hollow portion 72 as a third hollow portion having a rectangular tube shape communicating with the hollow portion 64 formed in the upper frame 52 is formed along the vertical direction. Has been. Further, rectangular communication ports 52D are formed at both ends in the longitudinal direction of the lower wall 52C of the upper frame 52, and the hollow portion 64 of the upper frame 52 and the hollow portion 72 of the vertical frame 54 are formed through the communication port 52D. And communicate with each other.

  As shown in FIGS. 2 and 5, a lower frame 58 is disposed at the lower ends of the pair of vertical frames 54 so as to connect the lower ends of the vertical frames 54. The lower frame 58 has a rectangular tube shape, and includes a cover 74 whose cross-sectional shape cut along the vertical direction forms a substantially inverted L shape. Further, both ends of the lower frame 58 are provided with discharge portions 76 that communicate with the hollow portion 72 formed in the vertical frame 54 and discharge water flowing in the hollow portion 72 to the outdoor 17 side. The upper part of the lower frame 58 including the discharge part 76 is covered with a cover 74 so that the discharge part 76 is not exposed to the outside.

(Operation and effect of the drainage structure of the building)
Next, functions and effects of the building drainage structure according to the present embodiment will be described.

  As shown in FIG. 1 and FIG. 3, a sash 50 as a frame body is provided in a state of being recessed from the outer wall surface 11 </ b> A of the outer wall panel 30 toward the indoor 15 side (so-called inset sash). Thereby, even if it does not provide unevenness in the design surface (outer wall surface 11A) of the outer wall 11, the shadow of the building 10 can be emphasized, and the appearance of the building 10 can be improved.

  In general, the horizontal joint 40 and the vertical joint 42 of the outer wall 11 are sealed by an irregular shaped seal 44, and the irregular shaped seal 44 is cut off at the horizontal joint 40 and the vertical joint 42 due to the seal breakage of the irregular shaped seal 44. It is assumed that water (rainwater or the like) enters the back (indoor 15 side) and water flows in the hollow portion 38A formed in the outer wall panel 30.

  In this case, as shown in FIG. 8, the water flowing in the hollow portion 100 flows to the vertical joint 104 through the horizontal joint 102. As a result, water can be discharged to the outdoor side. However, in this embodiment, as shown in FIGS. 3 and 7, the water flowing in the hollow portion 38 </ b> A of the outer wall panel 30 is once taken into the sash 50 by providing drainage means (described later) in the sash 50. It can be discharged to the outdoor 17 side.

  In the case of the inset sash, the sash 50 is provided in a state of being recessed from the outer wall surface 11 </ b> A of the outer wall panel 30 toward the indoor 15 side. For this reason, in order to discharge the water taken into the sash 50 to the outdoors 17, it is necessary to provide a drainage channel that connects the sash 50 and the outer wall surface 11A of the outer wall panel 30 (not shown).

  However, in this embodiment, since the water once taken into the sash 50 can be discharged to the outdoor 17 side, even if it is an inset sash, the drainage channel that connects the sash 50 and the outer wall surface 11A of the outer wall panel 30. Therefore, the appearance of the building 10 can be improved. Moreover, in the building 10 according to the present embodiment, since the drainage path can be secured, the maintenance cost of the building 10 can be reduced, and the economic burden on the user can be reduced.

  The above-described drainage means will be described more specifically. As shown in FIGS. 2 and 4, a hollow portion 64 is provided in the upper frame 52 of the sash 50. The upper wall 52A of the upper frame 52 is formed with a communication port 52B that allows the hollow portion 38A formed in the upper floor side outer wall panel 30A to communicate with the hollow portion 64.

  On the other hand, a draining member 70 is disposed at the lower end of the back surface of the upper floor side outer wall panel 30A. The horizontal wall 70B of the draining member 70 faces the lower end surface of the upper floor side outer wall panel 30A and is partially hollow. It faces the portion 38A. The hanging wall 70 </ b> C of the draining member 70 is suspended from the front end portion of the lateral wall 70 </ b> B and is inserted into the hollow portion 64 through the communication port 52 </ b> B formed in the upper frame 52. That is, the water flowing in the hollow portion 38A formed in the upper floor side outer wall panel 30A can be guided into the sash 50.

  As shown in FIGS. 2 and 5, the vertical frame 54 has a hollow portion 72 that communicates with the hollow portion 64 of the upper frame 52 through a communication port 52 </ b> D formed in the upper frame 52. Yes. Further, the lower frame 58 is provided with a discharge portion 76 that communicates with the hollow portion 72 formed in the vertical frame 54 and discharges the water flowing in the hollow portion 72 to the outdoor 17 side.

  Therefore, as shown in FIG. 3, the water flowing in the hollow portion 38A formed in the upper floor side outer wall panel 30A passes through the communication port 52B formed in the upper wall 52A of the upper frame 52 of the sash 50. Guided into the hollow portion 64 of the upper frame 52. Since the hollow part 64 communicates with the hollow part 72 formed in the vertical frame 54 through the communication port 52D formed in the lower wall 52C of the upper frame 52, the water guided into the hollow part 64 is It moves to the end of the upper frame 52 in the longitudinal direction and is guided into the hollow portion 72 through the communication port 52D. Since the hollow portion 72 communicates with the discharge portion 76 provided in the lower frame 58 of the sash 50, the water guided into the hollow portion 72 falls in the hollow portion 72 and the discharge portion 76. It is discharged to the outdoor 17 side.

  That is, the water flowing in the hollow portion 38A of the outer wall panel 30 is guided into the hollow portion 64 of the upper frame 52 through the communication port 52B of the upper frame 52, and then the vertical frame 54 through the communication port 52D of the upper frame 52. Is guided to the hollow portion 72. And it guides to the discharge part 76 through the hollow part 72 of the vertical frame 54, and is discharged | emitted to the outdoor 17 side through the said discharge part 76. FIG. Thus, the waterproof performance of the building 10 can be improved with a simple configuration.

(Other embodiments)
In the present embodiment, as shown in FIG. 3, the water flowing in the hollow portion 38 </ b> A formed in the upper floor side outer wall panel 30 </ b> A is guided into the sash 50 to constitute a part of the lower portion of the sash 50. The shape of the frame constituting the sash 50 is not limited to this as long as it can be discharged to the outdoor 17 side through the discharge portion 76.

  Moreover, in this embodiment, although the draining member 70 is arrange | positioned at the lower end part of 30 A of upper floor side outer wall panels, this draining member is not necessarily required. For example, a sealing member may be used instead of the draining member 70.

  As mentioned above, although one embodiment of the present invention was described, the present invention is not limited to such an embodiment, and one embodiment and various modifications may be used in combination as appropriate, and the gist of the present invention will be described. Of course, various embodiments can be implemented without departing from the scope.

10 building 11 outer wall 11A outer wall 15 indoor 17 outdoor 30 outer wall panel (outer wall, hollow outer wall material)
30A Upper floor side outer wall panel (outer wall, hollow outer wall material)
38 hollow part 38A hollow part (first hollow part)
50 Sash (frame)
52 Upper frame (drainage means)
54 Vertical frame (drainage means)
58 Lower frame (drainage means)
64 Hollow part (second hollow part)
70 Draining member 72 Hollow part (third hollow part)
76 Discharge section

Claims (5)

A hollow outer wall material in which a first hollow portion is formed along the vertical direction of the outer wall;
A frame body at least partially disposed on the indoor side of the outer wall surface of the hollow outer wall material;
A drainage means that is provided in the frame body, communicates with the first hollow portion, and drains the water flowing in the first hollow portion to the outdoor side;
Building drainage structure. The drainage means is
An upper frame that forms an upper part of the frame body and a second hollow part that communicates with the first hollow part is formed along a horizontal direction;
A vertical frame that forms a side portion of the frame body and a third hollow portion that communicates with the second hollow portion is formed along a vertical direction;
A lower frame that constitutes a lower part of the frame body, communicates with the third hollow portion, and is provided with a discharge portion that discharges water flowing in the third hollow portion to the outdoor side;
The building drainage structure according to claim 1, comprising:   At the lower end portion of the hollow outer wall material, a draining member is provided, part of which faces the first hollow part formed in the hollow outer wall material and the other part is inserted into the second hollow part. The building drainage structure according to claim 2.   The building drainage structure according to claim 2 or 3, wherein the drainage portion is provided on the outdoor side of the vertical frame. The hollow outer wall material according to any one of claims 1 to 4,
The drainage means according to any one of claims 1 to 4, wherein the water flowing in the first hollow portion provided in the hollow outer wall material is discharged to the outdoor side,
Having a building.

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