JP5427427B2 - Drainage structure of building - Google Patents

Description

  The present invention relates to a drainage structure for a building provided with a drainage member.

  Generally, a foundation drainer is provided below the outside of the building. This is because, when rain falls on the outer wall of a building and water flows along the outer wall, the humidity in the underfloor space increases when the water that flows down enters the foundation. The increase in humidity causes corrosion of metals such as wooden flooring, steel frames and metal fittings placed under the floor, and therefore it is necessary to prevent the intrusion. Therefore, if this foundation drainer is installed, the water flowing down the outer wall is discharged to the outdoor side rather than the foundation, so the above-mentioned problem is solved.

  Since this drainage is used every time it rains, corrosion and deterioration may occur after a certain period of time. Moreover, since it is installed near the ground in an exposed state, it may be damaged due to collision of objects. For this reason, in preparation for such a case, an installation structure of a base drainer that can be replaced has been proposed (see, for example, Patent Document 1).

  In this conventional installation structure, it is provided on the building side as a support member for the foundation drainer, and has a plate part protruding toward the outdoors, and a clamping part that is provided on the foundation drainer and sandwiches the plate part up and down. Yes. And when attaching a base drainer, it inserts into a building side from the near side so that a board part may be inserted in the clamping part, and when removing, a base drainer is pulled out to the near side (each figure of patent documents 1) See).

Japanese Patent Laid-Open No. 2005-2790

  By the way, in the structure which clamps the said board part by the side of a building draining like the installation structure mentioned above, the water which flowed down along the outer wall may permeate into the clamping part.

  Nevertheless, since no measures are taken against the ingress of the water, the ingress of water is allowed into the clamping part of the base drainer, and the water is accumulated without being discharged. For this reason, there is a problem that the water accumulated in the holding part causes the drainage of the base and the plate part to be corroded or deteriorated.

  Therefore, the present invention provides a water draining structure for a building that can prevent the water draining member and its supporting member from being deteriorated or corroded by the ingress of water while adopting a configuration in which the water draining member is detachable. The main purpose.

  The present invention employs the following means in order to solve the above problems.

  That is, according to the present invention, there is provided a drainage structure for a building provided with a drainage member that is disposed below the outer wall and discharges water that has flowed down along the surface of the outer wall to the outside of the foundation, and hooks the drainage member. A supporting member having a hooking part to be supported is fixed to a draining attachment portion of the building, and the draining member is attached by being hooked on the hooking part in a state of covering the supporting member from the outside. A waterproof member for preventing water from entering the support portion or discharging water that has entered the support portion to the base side is attached.

  According to such a configuration, the draining member is not directly fixed to the draining attachment point, but the supporting member is fixed to the draining attachment point and the draining member is hooked on the supporting member, so that the draining member can be easily removed. It becomes. As a result, if the draining member is damaged or deteriorated, it can be replaced with a new one. However, when the configuration of the hook support is adopted, there arises a problem that water flowing down along the outer wall easily enters the hook support portion of the draining member. However, in the present invention, since the waterproof measure is taken by the waterproof member, such a problem is solved. For this reason, it can suppress that a draining member and a supporting member deteriorate or corrode by the penetration | invasion of water. Furthermore, since it is also possible to prevent the water that has flowed down from entering the inside of the foundation, it is possible to suppress an increase in the humidity of the underfloor space. If the humidity in the underfloor space is high, it may cause corrosion of the wooden flooring and metal corrosion of the steel frame and the joint hardware placed under the floor.

  In this case, the draining member may be slidably supported by the support member in a direction along the wall surface of the outer wall, and the draining member may be attached to and detached from the support member by the slide.

  According to such a configuration, since the draining member is detachably attached to the support member by sliding in the lateral direction of the building, outdoor equipment (such as an outdoor unit of an air conditioner) is installed near the outer wall, and the equipment and the outer wall are installed. Even if the gap is narrow, it can be easily attached and detached by sliding the draining member.

  Conventionally, the draining member has been fixed with a fixing member such as a screw at every predetermined interval (for example, about 300 mm), so it is difficult to remove the screw disposed behind the outdoor equipment, and it is difficult to replace the draining member. there were. The effect is remarkable in the sense that such a conventional problem can be solved by this configuration in which the draining member is slid and attached.

  As the support structure of the draining member, a groove portion extending in a direction along the wall surface of the outer wall is formed on the support member side, and the insertion portion of the draining member is inserted into the groove portion and hooked. The lateral end of the groove is open, and when the draining member is slid, the insertion part is inserted into or pulled out from the open end of the groove. Is preferred.

  According to this configuration, the draining member can be slid by inserting or pulling out the insertion portion of the draining member from one open end of the groove. In this case, the draining member can be slid with a simple configuration in which the insertion portion is inserted into or pulled out of the groove portion.

  The waterproof member is preferably a seal member that is provided in a gap between a hook support portion of the draining member and a lower end of the outer wall and seals between the two.

  According to such a configuration, the gap between the hook support portion of the draining member and the lower end of the outer wall is sealed by the sealing member, so that it is possible to prevent water flowing down the outer wall from entering the indoor side from between the two. it can.

  In this case, more specifically, regarding the installation of the seal member, the draining member that is hooked and supported by the support member is separated from the lower end surface of the outer wall material and the gap below the outer wall material that is a part of the outer wall. It is preferable that a fixed seal member as the seal member is provided in the gap.

  According to such a configuration, since the fixed sealing member is surface-supported by the horizontal surface portion facing the lower end surface of the outer wall material, the fixed sealing member provided in the gap can be stably held on the draining member.

  The seal member is a fixed seal member made of an elastic material, and is preferably interposed in a compressed state in the gap.

  According to such a configuration, the fixed seal member made of an elastic material is pressed into the gap. Thereby, in addition to the waterproofing effect of the gap by the fixed seal member, the draining member is pressed by the fixed seal member, so that the drainage member supported by the hook can be fixed together.

  In addition, the said draining member may be comprised so that expansion-contraction is possible along the longitudinal direction. According to such a configuration, it is possible to attach and detach the drainer member in a contracted state, and a space area necessary for allowing the member drainer to slide is small. Thereby, even if the slide allowable space that can be secured on the side of the building is small, the draining member can be slid and attached.

  As another preferred configuration, the draining member includes a front hanging portion that protrudes to the outdoor side from the outer wall surface, and a plurality of divided structural bodies are connected, and one or a plurality of divided structural bodies are removed. The outdoor equipment may be installed by inserting the back side of the outdoor equipment into the removed portion formed in this way.

  According to such a configuration, if one or a plurality of divided components are removed in accordance with the width of the outdoor equipment to be installed, the indoor equipment can be installed by inserting the back side into the removed portion. In this case, since the indoor equipment is installed with its rear surface in contact with or close to the outer wall, the space required for installation of the outdoor equipment can be reduced.

The longitudinal cross-sectional view which shows the draining structure of a building, and its peripheral part. The perspective view which shows the draining structure of a building, and its peripheral part. Schematic view of the building as seen from the outside. The perspective view which shows another example of a foundation draining. The longitudinal cross-sectional view which shows another example of the draining structure of a building. The schematic plan view which shows the building unit couple | bonded two or more. The perspective view which shows the draining structure using another example of a foundation draining.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings. In this embodiment, the present invention is embodied in a unit type building having a steel frame ramen structure, and the unit type building is constructed by combining a plurality of building units as is well known. Each of these building units is manufactured in advance at a factory, and then transported to a building site by a truck or the like and coupled at the building site. Briefly describing the building unit, the building unit has four sides of a floor beam and a ceiling beam that are assembled in a rectangular shape, and a column that connects the floor beam and the ceiling beam at four corners. A skeleton (frame) is formed.

  The structure including the draining structure and the peripheral portion thereof in the unit type building will be described with reference to FIG. FIG. 1 is a longitudinal sectional view showing a water draining structure of a building and its peripheral part.

  As shown in FIG. 1, a foundation 11 is provided on the ground portion, and a floor beam 12 of a building unit forming a first floor portion of the building is installed on the foundation 11. The floor girder 12 is made of channel steel having a U-shaped cross section, and is installed with its opening facing the indoor side (right side in the figure). A ventilation gap S is provided between the floor girder 12 and the top end of the foundation 11.

  An outer wall panel 13 is attached to the web portion 12 a of the floor girder 12. The outer wall panel 13 includes a base frame 14 made of a light-weight rope (light groove rope) having a U-shaped cross section, and a rectangular flat outer wall material (ceramic siding board, etc.) 15 fixed to the base frame 14. The base frame 14 and the outer wall material 15 are joined and fixed by a tapping screw or the like. The lower frame portion 14a of the base frame 14 has an inner flange portion F1 and an outer flange portion F2 that face each other. When the inner flange portion F1 is in contact with the web portion 12a of the floor girder 12, both are bolts and Joined and fixed by a fastener such as a nut. Although not shown in the drawing, the upper frame portion of the base frame 14 is fixed to the web portion of the ceiling beam in the same manner. Therefore, the outer wall panel 13 is fixed to the building unit by fixing the base frame 14 to the floor beam 12 and the ceiling beam in this way.

  Incidentally, in the unit type building, a plurality of outer wall panels 13 are assembled side by side. Adjacent outer wall panels 13 are joined by their base frames 14 and are connected and fixed to each other by fasteners such as bolts and nuts. In this case, the upper frame portion and the lower frame portion 14a of the base frame 14 are arranged so as to be aligned in a horizontal row.

  A base drainer 16 (corresponding to a drainer member) that is elongated along the longitudinal direction of the lower frame portion 14a (that is, the direction along the wall surface of the outer wall) is attached to the base frame 14 of the outer wall panel 13. . The foundation drainer 16 is disposed below the outer wall member 15 and is provided over the entire lateral direction on each side surface of the building. The foundation drainer 16 has a front hanging portion 21 that extends in the vertical direction on the outdoor side of the foundation 11 and on the indoor side of the outer wall surface. The front hanging part 21 extends below the top end of the foundation 11 so that the upper end of the foundation 11 is hidden by the lower end part. Then, by installing this foundation drainer 16, rainwater or the like flowing down the outer wall is discharged to the outdoor side from the foundation 11.

  The base drainer 16 will be described in more detail. This is formed from a thin steel plate, and its upper end is bent so as to form a U-shaped cross section. By this bending, a horizontal surface portion 22 extending to the indoor side is formed at the upper end portion of the front hanging portion 21, and a downward hook-like portion 23 (corresponding to the insertion portion) is formed at the end portion of the horizontal surface portion 22. ing.

  On the other hand, a support member 31 having an elongated shape is attached to the outer flange portion F2 of the base frame 14 along the longitudinal direction of the lower frame portion 14a. The support member 31 is formed so that the attachment portion 32 to the outer flange portion F2 and the support portion 33 that supports the horizontal surface portion 22 of the base drainer 16 are substantially L-shaped. And the attachment part 32 is being fixed to the outer side flange part F2 with the screw | thread 34 so that the support part 33 may be arrange | positioned in the state facing the lower end surface of the outer wall material 15 in the outdoor side of the outer side flange part F2. Since the step portion 35 (corresponding to the hook portion) is provided on the upper portion of the attachment portion 32, the longitudinal direction is provided between the outer flange portion F2 and the support portion 33 when attached to the outer flange portion F2. A groove 36 extending along the line is formed. Although not shown in the drawing, the groove 36 is opened outward at both ends of the support member 31. The support portion 33 has substantially the same depth width (width in the left-right direction in the figure) as the lower surface of the horizontal surface portion 22.

  Then, as a support structure of the base drainer 16 by the support member 31, the hook-like portion 23 of the base drainer 16 is inserted into the groove portion 36 on the support member 31 side, and a substantially entire area of the horizontal plane portion 22 is supported by the support portion 33. Supported. Thereby, the foundation drainer 16 is hooked and supported by the support member 31. In the foundation drainer 16 that is hooked and supported by the support member 31, the horizontal surface portion 22 faces the lower end surface of the outer wall material 15 with a gap 41 therebetween. A fixed seal member 42 (corresponding to a waterproof member) is provided in the gap 41 over the entire area in the building lateral direction. The fixed seal member 42 is formed in a long shape with an elastic material such as rubber, and is formed thicker than the vertical width of the gap 41. For this reason, the fixed seal member 42 is provided in the gap 41 in a compressed state. By being interposed in the gap 41 in such a compressed state, the horizontal surface portion 22 is pressed to the support portion 33 side to fix the foundation drainer 16 and the gap 41 is sealed.

  Next, in the above structure, a replacement method for replacing the base drainer 16 due to corrosion or deterioration of the existing base drainer 16, that is, the base drainer 16 is attached to or detached from the support member 31. A method will be described.

  As the premise, the outdoor situation around the base drainer 16 will be described. FIG. 3 shows a schematic view of the building as viewed from the outside. As shown in FIG. 3, there are various types of outdoor units such as an air conditioner, a water heater, and an LPG cylinder outside the unit building T. Outdoor facilities 51 and 52 are installed. These outdoor facilities 51 and 52 are normally installed on the ground G in a state of being close to the outer wall, and have a height higher than at least the installation portion of the base drainer 16. For this reason, in the location where the outdoor equipment 51, 52 is installed, the foundation drainer 16 is hidden from the outside, and the gap with the outer wall behind the outdoor equipment 51, 52 is narrow.

  2. Description of the Related Art Conventionally, as a mounting structure for mounting a foundation drain on the base frame 14, the mounting section for mounting a foundation drain is fixed to the outer flange portion F2 of the lower frame portion 14a with a screw at predetermined intervals (for example, about 300 mm). It was. In the case of such an installation configuration, since the gap between the equipment 51, 52 and the outer wall is narrow at the place where the outdoor equipment 51, 52 is installed, the screw disposed behind the equipment 51, 52 It is difficult to remove. For this reason, it has been difficult to replace the base drainer 16.

  On the other hand, the foundation drainer 16 of the present embodiment having the above-described support structure can be attached to and detached from the support member 31 by sliding in the longitudinal direction (lateral direction of the building T). It will be resolved. Hereinafter, the specific replacement method will be described with reference to FIG. FIG. 2 is a perspective view showing a water draining structure of a building and its peripheral part. In the following description, it is assumed that space areas for sliding the foundation drainer 16 are secured on both sides in the longitudinal direction of the foundation drainer 16.

  When the base drainer 16 installed below the outer wall of the building is replaced, first, the fixed seal member 42 interposed in the gap 41 is removed as shown in FIG. In this case, since the fixed seal member 42 is only press-fitted into the gap 41, it can be easily removed by pulling the end portion out of the gap 41 while pulling.

  In a state where all the fixed seal members 42 are removed, the base drainer 16 is only hooked and supported on the support member 31 by the horizontal surface portion 22 and the flange portion 23. And the groove part 36 by the side of the support member 31 in which the collar-shaped part 23 is inserted has the both ends open | released outside. For this reason, as shown by the arrows in FIGS. 2 and 3, the foundation drainer 16 is slid in the longitudinal direction and pulled out from one side of both ends of the support member 31, thereby removing the foundation drainer 16 from the support member 31. Can be removed. When performing this extraction, the state in which the flange 23 is inserted into the groove portion 36 and the horizontal surface portion 22 is supported by the support portion 33 is maintained in a portion that has not yet been extracted. For this reason, the horizontal plane part 22 functions as a slide plane part, and the support part 33 functions as a support plane part.

  Next, when a new foundation drainer 16 is attached, the reverse of the above-described removal of the foundation drainer 16 is performed. First, the base drainer 16 is slid and inserted in the longitudinal direction from one side of the both ends of the support member 31 while inserting the hook-like portion 23 into the groove portion 36. When this insertion is performed, the horizontal surface portion 22 slides while being supported by the support portion 33 at the portion where the flange-shaped portion 23 is inserted into the groove portion 36, so that the horizontal surface portion 22 serves as a slide flat portion, and the support portion 33 supports the support plane. It functions as a part. After the new foundation drainer 16 is attached to the support member 31, the fixed seal member 42 is press-fitted into the gap 41. As a result, the horizontal drainage 16 is fixed by pressing the horizontal surface portion 22 toward the support portion 33, and the gap 41 is sealed.

  Thus, if the base drainer 16 is pulled out or inserted while sliding in the longitudinal direction, the base drainer 16 can be easily replaced even when the gap behind the outdoor equipment 51 and 52 is narrow.

  By the way, if the outdoor equipment 51, 52 does not exist (for example, at the time of new construction or the non-installation side of the equipment) or if there is a sufficient clearance behind the equipment 51, 52, pulling out to the front side The base drainer 16 can be attached and detached by attaching from the front side. In this case, the base drainer 16 can be detached from the support member 31 by pulling it out to the outdoor side while lifting the base drainer 16 upward using the gap 41. Further, the base drainer 16 is attached by inserting the hook-like portion 23 into the groove portion 36 while inserting the hook-like portion 23 from the front side to the back side using the gap 41.

  As described above, the drainage structure of the present embodiment provides the following advantageous effects.

  (1) Since the base drainer 16 is detachable by sliding, if the base drainer 16 is damaged or deteriorated, it can be replaced with a new one. In this case, the foundation drainer 16 is only hooked and supported, but since the gap 41 between the hook support part of the foundation drainer 16 and the lower end surface of the outer wall member 15 is sealed by the fixed seal member 42, It can prevent the water that flows down from entering between the two. Thereby, deterioration and corrosion of the foundation drainer 16 and the support member 31 can be suppressed. Moreover, since it is possible to prevent water from entering the indoor side from the foundation 11, it is possible to suppress an increase in humidity in the underfloor space that causes corrosion of metals such as wooden floor materials and steel frames under the floor.

  (2) Unlike the conventional case where the screws are fixed at predetermined intervals, the foundation drainer 16 is detachable by sliding it in the lateral direction of the building. For this reason, even when the outdoor equipment 51, 52 is installed in the vicinity of the outer wall and the gap between the equipment 51, 52 and the outer wall is narrow, the base drainer 16 can be easily attached and detached by sliding it. Moreover, the slide can be realized with a simple configuration in which the hook-like portion 23 is inserted or pulled out from one open end of the groove portion 36.

  (3) The foundation drainer 16 has a horizontal plane portion 22 that faces the lower end surface of the outer wall member 15, and the fixed seal member 42 is supported by the horizontal plane portion 22, so that the identification type seal member 42 is stably held. it can.

  (4) Since the fixed seal member 42 is formed of an elastic material and is press-fitted into the gap 41, in addition to the waterproof effect of the gap 41, the horizontal surface portion 22 is pressed toward the support portion 33, and is supported by hooking. Fixing the base drainer 16 can also be realized.

  Note that the present invention is not limited to the embodiment described above, and may be implemented in the form shown as another example below.

  (A) Depending on the width of the side surface of the building, it may be difficult to ensure a space area that allows the sliding of the foundation drainer 16 installed over the entire side surface. Moreover, in the case of a unit type building, the base drainer 16 is previously attached to each building unit at the factory. Therefore, in such a case, a configuration in which the base drainer 16 is divided into a plurality of parts is employed. In this case, the foundation drainer 16 is installed by connecting each divided body so that the end portions thereof are abutted with each other. In this case, joints between the respective divided bodies are generated. If the joints are sealed with a sealing material or the like, water can be prevented from entering the indoor side.

  Further, instead of dividing the base drainer 16, as shown in FIG. 4, it is possible to adopt a configuration in which a telescopic structure is adopted so as to be stretchable. In this case, after the base drainer 61 is slid and attached to the support member 31 in a contracted state, the constituent members 62 are sequentially pulled out and extended. Since the length of the base drainer 16 can be shortened, the required slide allowable space can be reduced even in this configuration.

  (A) In the above embodiment, the fixed seal member 42 is employed as a waterproof member for preventing the ingress of water flowing down the outer wall, but this is omitted, and the foundation of the water infiltrated into the support part of the foundation drainer You may employ | adopt the structure provided with the waterproof member which prevents discharge | emission to the side. A configuration in which such a waterproof member is installed will be briefly described with reference to FIGS. 5 and 6 with a focus on differences from the above embodiment. 5 is a longitudinal sectional view showing another example of the water draining structure of the building, and FIG. 6 is a schematic plan view showing the combined building unit.

  As shown in FIG. 5, the other example has the same structure as that of the above embodiment, but includes a different foundation drainer 71 (corresponding to a drainer member) and a support member 81, and further steel. A water receiving sheet 77 (corresponding to a waterproof member) formed of a thin plate made of metal is provided. The base drainer 71 is formed with a vertical attachment surface 73 and an insertion convex portion 74 (corresponding to an insertion portion) having a downward convex shape by bending the upper end portion of the front hanging portion 72. On the other hand, the support member 81 has an attachment portion 82 and a step portion 83 (corresponding to a hook portion), and is attached to the outer flange portion F2. In this case, the mounting portion 82 is fixed to the outer flange portion F2 by the screw 84 with the upper end portion of the water receiving sheet 77 interposed therebetween, whereby a groove portion 85 is formed between the step portion 83 and the flange portion F2. ing. The groove 85 is opened outward at both ends of the support member 81. As described above, the water receiving sheet 77 is attached to the outer flange portion F2 in conjunction with the attachment of the support member 81, and in the attached state, the upper end portion of the base 11 is hidden by the lower end portion on the outdoor side. It extends below the end.

  The insertion convex portion 74 of the base drainer 71 is inserted into the groove 85 on the support member 81 side, and the base drainer 71 is hooked and supported by the support member 81. Further, in the mounting surface portion 73 of the base drainer 71, the base drainer 71 is fixed to the support member 81 and the outer flange portion F2 of the lower frame portion 14a by screws 75.

  Here, when the screws 75 for fixing the base drainer 71 are provided at predetermined intervals of about 300 mm as in the prior art, it is difficult to remove the outdoor facilities 51 and 52 at the installation location with respect to the replacement of the base drainer 71. The above-mentioned problem is involved. For this reason, as shown in FIG. 6, only the both ends of each building unit Y are fixed places K where the foundation drainer 71 is fixed by screws 75. Since this fixed location K is only a small part of the side of the building, it can be set as a non-installation area for the outdoor facilities 51 and 52.

  Returning to FIG. 5, in this configuration, even when the water flowing down along the outer wall passes along the lower end surface of the outer wall material 15 and enters between the foundation drainer 71 and the outer flange portion F <b> 2, the water is stored in the groove portion 85. Without being discharged, the water receiving sheet 77 is discharged to the outdoor side of the foundation 11 along the outdoor side. For this reason, it can suppress that the foundation drainer 71 and the support member 81 deteriorate or corrode by water permeation.

  When replacing the base drainer 71, after removing the screw 75, the base drainer 71 is slid in the longitudinal direction and pulled out from one side of both ends of the support member 81, thereby removing the base drainer 71 from the support member 81. Can be removed. Conversely, when a new foundation drainer 71 is attached, the foundation drainer 71 is slid in the longitudinal direction of the support member 81 while inserting the insertion protrusion 74 into the groove 85 from one side of the support member 81 and inserted. . Then, the base drainer 71 inserted using the screw 75 is fixed.

  Therefore, even in this other example of the drainer structure, if the base drainer 71 is pulled out or inserted while sliding in the longitudinal direction, the base drainer 71 is removed even when the gap behind the outdoor equipment 51, 52 is narrow. Can be easily replaced.

  (C) In the above embodiment, the base drainer 16 has a structure in which the front hanging portion 21 is disposed on the indoor side with respect to the outer wall surface, but like the base drainer 91 shown in the perspective view of FIG. In addition, a configuration having the front hanging portion 92 disposed at a position protruding to the outdoor side from the outer wall surface may be employed. In this case, if the outdoor equipment 51 is installed close to the outer wall, it interferes with the front hanging portion 92 of the base drainer 91. Therefore, it is preferable to adopt a configuration in which the base drainer 91 is divided into a plurality of parts. Accordingly, it is possible to use the removed portion formed by removing one or the plurality of divided structural bodies 93 and insert the back side into the portion to install the indoor equipment 51. In this case, since the indoor equipment 51 is installed with its rear surface in contact with or close to the outer wall, the space required for the installation of the outdoor equipment can be reduced. And in the state which installed the outdoor equipment 51 in this way, if the sealing material 94 is provided between the side surface of the equipment 51 and the equipment side edge part of the foundation drainer 91, waterproofing can be ensured. it can.

  (D) In the above-described embodiment, the hook-and-drain portion 16 is inserted into the groove portion 36 formed between the step portion 35 and the outer flange portion F2 of the support member 31 as the hook support structure of the base drainer 16. Adopted. In this case, the stepped portion 35 corresponds to the hooking portion of the support member 31, but for example, a configuration in which a groove portion as a hooking portion is formed in the support member 31 itself may be adopted. Moreover, it replaces with the bowl-shaped part 23, the insertion convex part like the said another example (I) is employ | adopted, and it may be made to insert in the groove part 36. FIG.

  (E) In the above embodiment, the base drainer 16 has the horizontal plane portion 22 bent at the upper end of the front hanging portion 21, but an inclined surface portion is formed between the front hanging portion 21 and the horizontal plane portion 22. It may be. Thereby, water becomes easy to be discharged.

  (F) In the above embodiment, the horizontal surface portion 22 that functions as a slide flat surface portion is formed by bending the foundation drainer 16, but such formation of the horizontal surface portion 22 may be omitted. In this case, the support part 33 of the support member 31 is also omitted.

  (G) In the above embodiment, an example of a unit type building has been described. However, for example, the present invention may be applied to a building built by a steel frame construction method or a conventional wooden construction method.

  DESCRIPTION OF SYMBOLS 11 ... Foundation, 15 ... Outer wall material, 16 ... Base drainage (drainage member), 22 ... Horizontal plane part, 23 ... A bowl-shaped part (insertion part), 31 ... Support member, 35 ... Step part (hook part), 41 ... Gap , 42 ... fixed seal member (waterproof member), 71 ... foundation drainer (drainage member), 74 ... insertion convex part (insertion part), 77 ... water receiving sheet (waterproof member), 81 ... support member, 83 ... step part ( Hook).

Claims (10)

A draining structure for buildings is disposed below the outer walls than based falling water along the surface of the outer wall material draining member to discharge to the outside is provided,
A support member having a hook portion for hooking and supporting the draining member is fixed to the drainage mounting location of the building, and in a state of covering the support member from the outside, the hooking member is attached by hooking on the hook portion,
It is possible to release the hook in the hook part, and it is possible to remove the draining member from the draining attachment location by releasing the hook,
The draining member includes a front hanging portion as a water discharging portion that discharges water transmitted through the outer wall material to the outside of the foundation, a hooked portion that is hooked to the hooking portion, the front hanging portion, and the hooked portion. And an intermediate plate portion extending in the thickness direction of the outer wall material,
The support member has a plate-like shape extending along the intermediate plate portion and has a support portion that is overlapped with the intermediate plate portion and supports the intermediate plate portion from below.
Dewatering the building structure, characterized in that the waterproof member is attached to prevent the incoming immersion of water relative to the support portion of the water-shielding member by the hook portion. The waterproof member is a seal member that is provided in a gap between a lower end surface of the outer wall material and an upper plate surface of the intermediate plate portion, and seals between them.
The state in which the lower plate surface of the intermediate plate portion is overlapped with the upper plate surface of the support portion is held by the seal member pressing the intermediate plate portion . Drainage structure of the building. 3. The building draining structure according to claim 2 , wherein the seal member is a fixed seal member made of an elastic material, and is interposed in a compressed state in the gap. 4. The water drainage structure for a building according to claim 1 , wherein the support portion has a length dimension extending from the front hanging portion of the water draining member to the hooked portion. 5. . A base frame is attached to the back side of the outer wall material, and the base frame extends below the lower end of the outer wall material,
The support member is fixed to a portion of the base frame that extends downward from the outer wall material, and the support portion is provided to extend from the base frame toward the outdoor side,
The water drainage structure for a building according to any one of claims 1 to 4 , wherein the hooked portion is supported in a state of being sandwiched between the support member and the base frame . Said draining member by the supporting member is slidably supported in a direction along the wall surface of the outer wall member, said draining member by the slide of the claims 1 to 5, characterized in that it is detachable from the support member The water draining structure of a building according to any one of the above. As the support structure of the draining member, a groove portion extending in a direction along the wall surface of the outer wall material is formed on the support member side, and the draining member has an insertion portion as the hooked portion inserted into the groove portion. It has a structure that can be hooked,
The lateral end of the groove is open, and when the draining member is slid, the insertion part is inserted into or pulled out from the open end of the groove. Item 7. A drainage structure for a building according to item 6 . The draining structure for a building according to any one of claims 1 to 7 , wherein the draining member is configured to be stretchable along a longitudinal direction thereof. The draining member is provided in a state in which the front hanging portion protrudes to the outdoor side from the outer wall surface , and a plurality of divided components are connected,
To remove part one or more of the divided structure is formed is removed by inserting the back side of the outside plant, one of the claims 1 to 8, characterized in that as the outside plant is installed The drainage structure of a building according to item 1. The building is a unit type building constructed by using a building unit manufactured in a factory and transported to a construction site, and placing the building unit on the foundation.
The building unit has a skeleton composed of floor beams, ceiling beams and columns,
The support member is provided at a position above the lower end of the floor beam.
The building drainer structure according to any one of claims 1 to 9, wherein the drainer member is attached to the support member so as to extend below a lower end portion of the floor beam.

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