JP6191964B2 - Filter member and drain - Google Patents

Description

  The present invention relates to a filter member for collecting garbage in an eaves and a drain attached to the eaves.

  Patent Document 1 discloses that a drain is attached to the bottom of the eaves in order to discharge rainwater from the eaves to the eaves. This drain has an upper inner cylinder and a lower outer cylinder. The upper inner cylinder includes a hemispherical dust net, a male screw extending the lower end of the dust net, and a flange formed on the outer surface of the upper edge of the male screw. The dust net, the male screw, and the collar portion are integrally formed. The male screw of the upper inner cylinder is inserted from above into a drain hole formed in the bottom of the eaves bowl.

  The lower outer cylinder includes a cylindrical main body and a flange formed on the outer surface of the upper end portion of the cylindrical main body. An internal thread is formed on the inner surface of the cylindrical main body. The female screw of the lower outer cylinder is screwed to the male screw of the upper inner cylinder. Thereby, the peripheral part of the drainage hole in the bottom part of the eaves bowl is sandwiched between the eaves part of the upper inner cylinder and the eaves part of the lower outer cylinder, and the drain is attached to the eaves bowl.

JP-A-9-279784

  The drain disclosed in Patent Document 1 can collect garbage such as fallen leaves by a hemispherical dust screen. However, since the dust net is formed so as to surround the entire circumference of the drain hole, the material cost is likely to increase.

  This invention is made | formed in view of the said situation, Comprising: It aims at providing the filter member and drain which can suppress the increase in material cost.

  In order to solve the above problems, the filter member of the present invention is a filter member that is provided on the bottom of the eaves and collects dust, and is formed at two locations separated in the length direction of the eaves, A wall along the inner surface of the first wall that is one of the walls of the eaves, and has water permeability, and is formed at an intermediate portion between the walls along the other wall of the eaves And a filter portion projecting toward a certain second wall portion side.

  In addition, the drain of the present invention is disposed on the lower side of the eaves and has a drain tube communicating with a dropping port formed on the bottom of the eaves, and has water permeability, and is disposed on the upper side of the bottom of the eaves. A water passage member that is fixed to the drain tube and sandwiches the bottom of the eaves with the drain tube, and a filter member that is provided above the bottom of the eaves and collects dust. The filter member is formed at two locations spaced in the longitudinal direction of the eaves wall, and has water permeability along a wall along the inner surface of the first wall part which is one wall part of the eaves wall. And a filter portion formed at an intermediate portion along the both walls and projecting toward the second wall portion side which is the other wall portion of the eaves wall.

  In addition, the drain is fixed to the water passage member so that the position of the eave ridge in the longitudinal direction is determined, and the drain is locked to the second wall portion of the eave ridge. It is preferable to include a locking portion that restricts movement of the bag toward the second wall portion and movement in the vertical direction.

  Moreover, it is preferable that a drain is along the inner surface of the 1st wall part where the both wall side part is a wall part by the side of the building of the eaves.

  In the present invention, dust such as fallen leaves can be appropriately collected without providing a filter part on the first wall part side of the filter member, and an increase in cost of the filter member can be suppressed.

It is a perspective view of the drainage structure containing the drain of an example of an embodiment of the present invention. It is a partially cutaway perspective sectional view of a drainage structure including a drain of an example of an embodiment of the present invention. It is a disassembled perspective view of the drain of an example of embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 and 2 show a drainage structure of the eaves ridge 2 in which the drain 1 of the present embodiment is attached to the eave ridge 2. Hereinafter, the longitudinal direction of the eaves 2 will be described as the left-right direction, the building side as viewed from the eaves 2 will be described as the rear, and the outdoor side will be described as the front.

  The eaves rod 2 is suspended by an eaves rod hanging tool (not shown) attached to the building. The eaves bowl 2 is a square bowl, and includes a bottom part 20, a front wall part 21, and a rear wall part 22. The bottom 20 of the eaves basket 2 is substantially horizontal. The front wall portion 21 located on the outdoor side rises from the front end portion of the bottom portion 20 and is inclined so as to be located on the front side as it goes upward. The rear wall portion 22 rises from the rear end portion of the bottom portion 20 and is perpendicular to the bottom portion 20.

  A front ear portion 210 is formed at the upper end portion of the front wall portion 21 so as to protrude rearward and then be folded back to the front side. A rear ear portion 220 is formed at the upper end portion of the rear wall portion 22 and protrudes forward and then bent downward.

  As shown in FIG. 2, the bottom 20 of the eaves 2 is formed with a pit 200 that penetrates vertically. The pit 200 is formed in a circular shape in plan view using, for example, a hole saw. The pit 200 may be formed in a non-circular shape in plan view.

  The drain 1 includes a drain tube 3, a protruding member 4, a water passage member 5, a screw member 6, and a filter member 8. The drain tube 3 includes a tubular portion 30 and a contact portion 31 provided at the upper end portion of the tubular portion 30.

  The cylindrical part 30 is formed in a cylindrical shape. The axial direction of the cylindrical portion 30 is inclined so as to be located on the rear side (building side) as it goes downward. A downstream portion (a lower portion in the axial direction) of the cylindrical portion 30 is a connecting portion 300 that can connect a downstream pipe such as a caller.

  The abutting portion 31 includes a substantially vertical vertical plate portion 310 and a substantially horizontal horizontal plate portion 311. As for the upper edge part of the cylindrical part 30, the rear-end part protrudes upwards rather than the front part. The vertical plate portion 310 protrudes downward from the rear end portion of the upper edge portion of the tubular portion 30. The vertical plate portion 310 is parallel to the rear wall portion 22 of the eaves bowl 2 and is arranged substantially vertically. The horizontal plate portion 311 protrudes forward from the lower edge portion of the vertical plate portion 310. The left and right sides of the horizontal plate portion 311 are connected to the upper edge portion excluding the rear end portion of the tubular portion 30. The rear portion of the upper end portion of the cylindrical portion 30 is closed by the contact portion 31.

  At the front part of the upper end of the drain tube 3, an upper opening 32 penetrating vertically is formed, surrounded by the upper edge of the tubular part 30 and the horizontal plate part 311. The space in the drain tube 3 is opened upward via the upper opening 32.

  The protruding member 4 protrudes upward from the upper end of the drain tube 3. As shown in FIG. 3, the protruding member 4 includes a cylindrical portion 45 and a plurality of support portions 46. A plurality of support columns 46 are provided side by side so as to be arranged on the same virtual circle with a gap in plan view. In the present embodiment, a total of two column portions 46 are provided, and both column portions 46 are arranged in the front-rear direction with a gap therebetween. Each column 46 has a plate shape that is long in the vertical direction. In addition, the protrusion member 4 may be provided with three or more support | pillar parts 46 arrange | positioned on a virtual circle. Moreover, each support | pillar part 46 may be rod-shaped.

  Each column 46 protrudes above the drain tube 3 from the inner surface of the upper opening 32 of the drain tube 3. On both the left and right sides of the lower end of each support column 46 are formed recesses 460 that penetrate back and forth and are recessed inward in the left-right direction.

  On the inner surface of the upper opening 32 of the drain tube 3, projections 35 are formed at portions corresponding to the recesses 460 of the support columns 46. Corresponding protrusions 35 are fitted in the recesses 460 of the respective column portions 46, and the respective column portions 46 are connected to the drain tube 3 in this state. In addition, each support | pillar part 46 may be connected with the drain tube 3 only by inserting the protrusion 35 in the recess 460, and may be connected with the drain tube 3 using other means, such as adhesion | attachment. .

  The cylinder part 45 is formed in a substantially cylindrical shape that is opened up and down. The upper end portion of each column portion 46 is integrally connected to the tube portion 45. The lower portions of the respective column portions 46 are integrally connected through a connection portion 47.

  A threaded portion 411 is formed on the outer peripheral surface of the cylindrical portion 45. The screw part 411 is a male screw.

  As shown in FIG. 2, the drain tube 3 is disposed below the eaves 2. The horizontal plate portion 311 of the drain tube 3 is in contact with the lower surface of the bottom portion 20 of the eaves bowl 2. Thereby, the upward movement of the drain tube 3 is regulated. The vertical plate portion 310 of the drain tube 3 is in surface contact with the rear surface of the rear wall portion 22 of the eaves bowl 2. Thereby, the movement to the front of the drain tube 3 is regulated. In addition, the said surface contact means that a surface and the surface along this contact with a wide contact area.

  The protruding member 4 protrudes upward from the bottom 20 of the eaves 2 through the drop opening 200 from below the eaves 2.

  As shown in FIG. 3, the water flow member 5 is obtained by integrally connecting upper and lower plate portions 50, 51 with a plurality of connecting portions 52, 53. The upper and lower plate portions 50 and 51 are parallel to the bottom portion 20 of the eaves 2 and are arranged substantially horizontally. In the center of the upper and lower plate portions 50 and 51, insertion holes 500 and 510 penetrating in the vertical direction are formed, respectively.

  The water flow member 5 includes a total of two connecting portions 52 and 53. The connecting portion 52 is provided on the front side of the water passing member 5, and the connecting portion 53 is provided on the rear side of the water passing member 5. Each of the connecting portions 52 and 53 is formed in a rectangular plate shape that is vertically long and has a thickness direction in the front-rear direction. The front connecting portion 52 connects the front end portions of the upper and lower plate portions 50 and 51 and is located on the front side of the insertion holes 500 and 510. The rear connection portion 53 connects the rear end portions of the upper and lower plate portions 50 and 51 and is located on the rear side of the insertion holes 500 and 510.

  As shown in FIG. 2, a positioning cylinder portion 511 that protrudes downward from the peripheral edge portion of the insertion hole 510 is formed in the lower plate portion 51. The positioning cylinder portion 511 is formed in a cylindrical shape whose outer peripheral surface is along the inner peripheral surface of the pit 200 of the eaves 2.

  The lower plate portion 51 constituting the lower surface portion of the water flow member 5 is placed on the bottom portion 20 of the eaves bowl 2 with the positioning cylinder portion 511 fitted in the drop opening 200. The insertion hole 510 of the plate part 51 communicates with the inside of the drain tube 3. The plate portion 51 is restricted from moving in the horizontal direction with respect to the eaves 2 by the positioning cylinder portion 511 being fitted into the drop opening 200.

  The rear surface of the connecting portion 53 on the rear side of the water flow member 5 and the rear end surfaces of the upper and lower plate portions 50 and 51 are disposed along the front surface of the rear wall portion 22 of the eaves 2 and face the rear wall portion 22. ing. Thereby, the backward movement of the water flow member 5 is restricted by the eaves rod 2. The rear surface of the connecting portion 53 on the rear side of the water-permeable member 5 and the rear end surfaces of the upper and lower plate portions 50 and 51 may be in contact with the front surface of the rear wall portion 22 of the eaves cage 2 or in a non-contact manner. It may be arranged near the front surface of the rear wall portion 22 of the eaves 2.

  Both support column portions 46 of the protruding member 4 protruding upward from the drop port 200 are inserted into the insertion hole 510 on the lower side of the water passing member 5. The cylindrical portion 45 of the protruding member 4 protruding upward from the drop opening 200 is inserted into the insertion hole 500 on the upper side of the water passing member 5.

  In addition, the operation | work which penetrates the protrusion member 4 to the upper and lower insertion holes 500 and 510 of the water member 5 makes the protrusion member 4 provided in the drain tube 3 protrude on the bottom part 20 of the eaves 2, and this protrusion member 4. Alternatively, the water flow member 5 may be moved relative to the water flow. Further, by inserting the protruding member 4 provided in the drain tube 3 into the water passing member 5 placed on the bottom portion 20 of the eaves 2, the upper and lower insertion holes 500, 510 of the water passing member 5 are inserted. You may pass through.

  As shown in FIG. 3, a plurality of protrusions 450 projecting outward are formed at the lower end portion of the cylindrical portion 45. In the present embodiment, protrusions 450 are formed on both the left and right sides of the cylindrical portion 45. These protrusions 450 are fitted into recesses 501 formed at the hole edges of the insertion holes 500 of the upper plate part 50. Thereby, the circumferential position of the upper plate portion 50 is determined, and the water passage member 5 is restricted from rotating about the vertical axis with respect to the eaves 2.

  The screw member 6 is formed in a substantially cylindrical shape opened up and down. A female screw 63 is formed on the inner peripheral surface of the substantially cylindrical screw member 6. On the upper part of the screw member 6, a grip portion 61 is formed that is gripped by the installer when the screw member 6 is rotated.

  The female screw 63 of the screw member 6 is screwed into the screw portion 411 of the cylindrical portion 45 protruding further upward than the upper plate portion 50 constituting the upper surface portion of the water passage member 5. The screw member 6 is fastened to the screw portion 411 until the lower end surface thereof is in contact with the upper surface of the upper plate portion 50 of the water passage member 5.

  The screw member 6 screwed into the protruding member 4 presses the upper plate portion 50 of the water passage member 5 downward. Thereby, the bottom part 20 of the eaves bowl 2 is sandwiched between the lower surface of the lower plate part 51 of the water passage member 5 and the upper end surface of the drainage pipe 3, and the drainage pipe 3, the protruding member 4, the water passage member 5, The screw member 6 is fixed to the eaves 2.

  The filter member 8 is detachably fixed to the water passage member 5. As shown in FIG. 3, the filter member 8 includes a filter portion 80 and a protrusion 81. The filter unit 80 is formed in a bowl shape that opens rearward and downward. A large number of rectangular water passage holes 804 each having a mesh (lattice) are formed in the filter unit 80 so as to extend over the entire filter unit 80.

  The filter unit 80 is configured by a half-cylindrical wall portion 800 and a ceiling portion 801 disposed above a space surrounded by the wall portion 800.

  The wall portion 800 is formed in a net shape (lattice shape) with a large number of vertical piece portions 808 and a large number of horizontal piece portions 806. The wall portion 800 includes a front surface portion 802 that constitutes the front surface of the filter portion 80 and side surfaces 803 on both the left and right sides that constitute the side surfaces of the filter portion 80. Both side surface portions 803 protrude from the left and right end portions of the front surface portion 802 toward the rear side. Both side surface portions 803 are inclined so as to be separated from each other as going rearward.

  The ceiling 801 has a front end connected to the upper end of the front surface 802 and both side ends connected to the upper end of the side surface 803.

  The filter member 8 is placed on the bottom 20 of the eaves 2 with the lower end surface of the wall 800 in surface contact with the bottom 20 of the eaves 2. The wall portion 800 of the filter member 8 covers the periphery except the rear of the water flow member 5, and the ceiling portion 801 covers the water flow member 5 and the screw member 6.

  An opening 805 that penetrates in the front-rear direction and opens downward is formed in the front surface portion 802 of the wall portion 800. The opening 805 is larger than the water passage hole 804, and is formed in a substantially rectangular shape that substantially matches the connecting portion 52 on the front side of the water passage member 5.

  As shown in FIG. 2, the connecting portion 52 on the front side of the water passage member 5 is fitted into the opening 805 of the filter portion 80. Further, the lower end portion of the opening 805 of the filter unit 80 is wider in the left-right width than the upper portion, and the front end portion of the lower plate portion 51 is fitted into this portion. Thus, the movement of the filter member 8 in the left-right direction with respect to the water passage member 5 is restricted. That is, the peripheral edge portion of the opening 805 of the filter member 8 constitutes a positioning portion for determining the position of the filter member 8 with respect to the water passage member 5. The positioning portion is not limited to the peripheral portion of the opening 805 of the filter member 8.

  As shown in FIG. 3, the rear end surfaces of the side surface portions 803 on both sides of the filter member 8 constitute wall side portions 807, respectively. Each wall side portion 807 is configured by protruding end surfaces of a plurality of upper and lower horizontal piece portions 806 protruding rearward at the rear end portion of the side surface portion 803.

  Both wall side portions 807 are spaced apart in the left-right direction, which is the longitudinal direction of the eaves 2, and are disposed on both sides of the pit 200 in the left-right direction as shown in FIG. 1. In the filter member 8, the filter portion 80 (that is, the front surface portion 802 and the both side surface portions 803) located at the intermediate portion between both wall side portions 807 protrudes toward the front side opposite to the rear wall portion 22 of the eaves wall 2. ing.

  The wall side portions 807 on both sides of the filter member 8 are arranged along the front surface of the rear wall portion 22 of the eaves 2 and face the rear wall portion 22. For this reason, the backward movement of the filter member 8 is restricted by the eaves 2. The side walls 807 on both sides of the filter member 8 may be in contact with the front surface of the rear wall portion 22 of the eaves 2 or arranged in the vicinity of the front surface of the rear wall portion 22 of the eaves 2 without contact. Also good.

  Among the plurality of upper and lower horizontal piece portions 806 constituting the rear end portion of the side surface portion 803 on both sides of the filter portion 80, the rear ear portion 220 between the two horizontal piece portions 806 located at the upper end portion is provided. Is arranged. As a result, when the filter member 8 moves upward, the horizontal piece 806 disposed below the rear ear portion 220 hits the rear ear portion 220 and the upward movement of the filter member 8 is restricted.

  The protruding portion 81 protrudes forward from the ceiling portion 801 constituting the upper surface portion of the filter portion 80. The protrusion 81 includes a locking portion 810 that is long on the left and right, and a plurality of connection piece portions 811 that protrude rearward from the locking portion 810. A rear end portion of each connection piece portion 811 is connected to the ceiling portion 801. A locking groove portion 812 having a triangular side cross section is formed on the front surface of the locking portion 810.

  The locking part 810 is detachably locked to the eaves bowl 2 by fitting the locking groove part 812 into the front ear part 210 of the eaves bowl 2. Thereby, the movement of the front end portion of the filter member 8 in both the vertical direction and the forward direction is restricted by the eaves rod 2.

  In other words, the filter member 8 has the water passage member 5 fitted in the opening 805, the both wall side portions 807 are along the rear wall portion 22 of the eaves 2, and the locking portion 810 of the protrusion 81 is located in front of the eaves 2. By being locked to the ear portion 210, it is fixed to both the eaves 2 and the water-permeable member 5 attached thereto.

  In the filter member 8, the upper space 10 of the drop port 200 of the eaves 2 is surrounded by the filter 80 located in the middle portion between the both side walls 807 and the rear wall 22 of the eaves 2. The water passage member 5 and the screw member 6 are disposed in the space 10.

  The filter member 8 can be detached from the water flow member 5 and the eaves rod 2 while the screw member 6 is screwed to the protruding member 4 and the drain tube 3 and the water flow member 5 are attached to the eaves wall 2. In order to remove the filter member 8, the locking portion 810 is removed from the front ear portion 210, the filter member 8 is pulled upward, and the water passage member 5 is removed from the opening 805.

  For example, the upstream end portion of the call is directly connected to the connecting portion 300 of the drain tube 3 shown in FIG. The drain tube 3 is attached to the eaves wall 2 with its axial direction inclined with respect to the vertical direction. For this reason, pipe materials, such as an elbow, for connecting the call to the eaves 2 can be omitted. Moreover, when pipe materials, such as an elbow, are abbreviate | omitted in this way, it can be set as the drainage structure which has a simple external appearance. The downstream end portion of the call is connected to the upper end portion of the basket through an elbow.

  In a state where the drain 1 is attached to the eaves 2, the rainwater flowing through the eaves 2 passes through the water holes 804 of the wall portion 800 of the filter member 8. This rainwater passes between the connecting portions 52 and 53 of the water passage member 5 and the lower insertion hole 510 in order, and then flows into the drain tube 3 from the outlet 200 of the eaves wall 2, so Is discharged through.

  When rainwater flowing through the eaves 2 passes through the water passage hole 804 of the filter member 8, dust such as fallen leaves contained in the rainwater is collected by the net-like filter portion 80 of the filter member 8. For this reason, in the drain tube 3 downstream of the water flow member 5 and the pipe material disposed on the downstream side of the drain tube 3, dust and the like are hardly clogged.

  The filter member 8 of the present embodiment described above is provided on the bottom 20 of the eaves 2 and collects garbage. The filter member 8 includes a wall side portion 807 and a filter portion 80. The wall side portions 807 are formed at two locations separated in the length direction of the eaves wall 2, and extend along the inner surface of the first wall part (rear wall part 22) that is one wall part of the eaves wall 2. The filter part 80 has water permeability, is formed in an intermediate part between both wall side parts 807, and projects toward the second wall part (front wall part 21) side which is the other wall part of the eaves wall 2.

  The filter member 8 can collect dust such as fallen leaves without providing the filter portion 80 on the first wall portion (rear wall portion 22) side, and suppresses an increase in the cost of the filter member 8. it can.

  Further, the drain 1 of this embodiment includes a drain tube 3, a water passage member 5, and a filter member 8. The drain tube 3 is arranged on the lower side of the eaves wall 2 and communicates with a pit 200 formed in the bottom portion 20 of the eaves wall 2. The water passage member 5 has water permeability, is disposed on the upper side of the bottom portion 20 of the eaves cage 2, is fixed to the drain tube 3, and sandwiches the bottom portion 20 of the eave cage 2 between the drain tube 3. The filter member 8 is provided on the upper side of the bottom 20 of the eaves bowl 2 and collects garbage. The filter member 8 includes a wall side portion 807 and a filter portion 80. The wall side portions 807 are formed at two locations spaced in the longitudinal direction of the eaves wall 2 and extend along the inner surface of the first wall part (rear wall part 22), which is one wall part of the eaves wall 2. The filter part 80 has water permeability, is formed in an intermediate part between both wall side parts 807, and projects toward the second wall part (front wall part 21) side which is the other wall part of the eaves wall 2.

  This drain 1 can collect dust such as fallen leaves without providing the filter part 80 on the first wall part (rear wall part 22) side of the filter member 8, and suppresses an increase in the cost of the filter member 8. can do.

  Moreover, it is preferable that the filter member 8 is provided with the positioning part (opening part 805) and the latching | locking part 810 like this embodiment. The positioning portion is fixed to the water passage member 5 and the position of the eaves rod 2 in the longitudinal direction is determined. The locking part 810 is locked to the second wall part (front wall part 21) of the eaves bowl 2, and movement of the eaves bowl 2 to the second wall part side and movement in the vertical direction are restricted. By doing in this way, the filter member 8 can be fixed firmly.

  Moreover, it is preferable that both wall side part 807 is along the inner surface of the 1st wall part (rear wall part 22) which is a wall part by the side of the building of the eaves 2 like this embodiment. In this way, when removing the dust collected by the filter member 8 from the front side of the eaves 2, the dust is collected at the front side (opposite side of the building) of the filter member 8 and the places where the left and right hands can easily reach. Thus, dust attached to the filter member 8 can be easily removed.

  In the present embodiment, the side wall portions 807 on both sides of the filter member 8 are arranged along the inner surface of the rear wall portion 22 of the eaves wall 2. However, the filter member 8 may be such that both wall side portions 807 extend along the front wall portion 21 of the eaves wall 2 and the filter portion 80 between both wall side portions 807 protrudes toward the rear wall portion 22 side. . That is, the filter member 8 includes a second wall portion 807 along the inner surface of the first wall portion which is one wall portion of the eaves wall 2, and the filter portion 80 therebetween is the second wall portion of the eave wall 2. What protruded toward the wall part side should just be.

  Further, the filter member 8 may be fixed only to the eaves 2 without being positioned on the water passage member 5. Moreover, in this embodiment, although the axial direction of the drain tube 3 inclines with respect to the direction perpendicular | vertical to the bottom part 20 of the eaves wall 2, it may be parallel. Further, in the present embodiment, the downstream pipe connected to the drain tube 3 is not limited to a caller, and may be a joint such as an elbow or a rod. Moreover, the water flow member 5 in this embodiment may be formed integrally with the screw member 6. In addition, the drain 1 in the present embodiment can be changed in design without departing from the spirit of the present invention.

1 drain 2 eaves 20 bottom 21 front wall (second wall)
22 Rear wall (first wall)
200 Drainage port 3 Drain tube 5 Water flow member 6 Screw member 8 Filter member 80 Filter part 807 Wall side

Claims (4)

A filter member provided on the bottom of the eaves to collect garbage,
Formed at two locations spaced apart in the longitudinal direction of the eaves wall, along the wall along the inner surface of the first wall part which is one wall part of the eaves wall,
A filter having water permeability, and having a filter portion formed at an intermediate portion along the both walls and projecting toward the second wall portion which is the other wall portion of the eaves wall. Element. A drain tube disposed on the underside of the eaves and communicating with a pit formed at the bottom of the eaves, and
A water-permeable member that has water permeability, is disposed on the upper side of the bottom of the eaves bowl, is fixed to the drainage cylinder, and sandwiches the bottom of the eaves bowl with the drainage cylinder,
A filter member provided on the upper side of the bottom of the eaves to collect garbage;
The filter member is
Formed at two locations spaced apart in the longitudinal direction of the eaves wall, along the wall along the inner surface of the first wall part which is one wall part of the eaves wall,
A drain having a water permeability, and formed at an intermediate portion along the both walls, and extending toward the second wall side, which is the other wall portion of the eaves wall. . The filter member is
A positioning part fixed with respect to the water flow member and determining a position in the longitudinal direction of the eaves;
3. A locking portion that is locked to the second wall portion of the eaves wall and is provided with a locking portion that restricts movement of the eaves wall toward the second wall portion and movement in the vertical direction. The drain described. The drain according to claim 2 or 3, wherein the both side walls are along an inner surface of a first wall portion which is a wall portion on the building side of the eaves.

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