Closing structure for drainage openings in horizontal gutters

Abstract

To provide a closing structure of a drain opening of a horizontal gutter capable of easily attaching a closing member to the drain opening of the horizontal gutter while securing cut-off performance.SOLUTION: Closing structure 8 of a drain opening 44 of a horizontal gutter 41 includes the horizontal gutter 41 having the drain opening 44 and a closing member 81 for closing the drain opening 44, and the closing member 81 has a plug-like part 82 which can be press-fitted into the drain opening 44 from below the drain opening 44.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present disclosure relates to a structure for closing a drainage opening of a horizontal gutter.

Background Art

[0002] Conventionally, in a roof structure such as a terrace, a drainage opening to which a vertical gutter is connected is provided in the horizontal gutter of the roof body. In such a roof body, in order to provide freedom in the installation position of the vertical gutter, the drainage openings may be provided at multiple locations in the horizontal gutter. Among the plurality of drainage openings, the drainage openings that are not connected to the vertical gutter and are not used are closed by a closing member having a water-stopping performance (see, for example, Patent Document 1).

[0003] The closing structure described in Patent Document 1 is a structure in which a closing member is fixed to the lower surface of the horizontal gutter with screws in a state where a sealing material such as packing is sandwiched so as to close the drainage opening from below the horizontal gutter.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the case of a closing structure in which a closing member is fixed with screws from below the horizontal gutter, the attachment work for fixing with screws is likely to be troublesome. Therefore, there is a need for a closing structure that can easily attach a closing member to the drainage opening of the horizontal gutter while ensuring water-stopping performance.

[0006] An object of the present disclosure is to provide a structure for closing a drainage opening of a horizontal gutter that can easily attach a closing member to the drainage opening of the horizontal gutter while ensuring water-stopping performance.

Means for Solving the Problems

[0007] This disclosure relates to a drainage opening closing structure for a gutter, comprising a gutter having a drainage opening and a closing member for closing the drainage opening, wherein the closing member has a plug-shaped portion that can be pressed into the drainage opening from below. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of a terrace according to one embodiment. [Figure 2] This is a perspective view of the sealing structure for the drainage opening of the horizontal gutter, seen from above the terrace. [Figure 3] This is a perspective view of the sealing structure for the drainage opening of the horizontal gutter, seen from below the terrace. [Figure 4] This is an exploded perspective view of the sealing structure for the drainage opening of a horizontal gutter. [Figure 5] This is a plan view of the sealing structure for the drainage opening of a horizontal gutter. [Figure 6] This is a cross-sectional view along line AA in Figure 5. [Figure 7] Figure 5 is a cross-sectional view along line BB. [Figure 8] Figure 5 is a cross-sectional view along the CC line. [Modes for carrying out the invention]

[0009] The following describes a sealing structure 8 for the drainage opening 44 of a gutter 41 according to one embodiment of the present disclosure, with reference to the drawings. The sealing structure 8 for the drainage opening 44 of the gutter 41 is applied to the gutter of a roof structure. In this embodiment, an example in which the roof structure is applied to a terrace 1 will be described. However, for example, the roof structure may also be applied to structures other than terraces, such as carports, bicycle parking areas, shelters, rest areas, bus stops, etc.

[0010] In this description of the embodiment, in the terrace 1, the side of the building 10 with the wall portion 10a is referred to as the rear side, and the side of the building 10 with the support column 11 opposite the wall portion 10a is referred to as the front side. The direction in which the rafter hanger 3 and the front frame 4 extend is referred to as the left-right direction.

[0011] As shown in Figure 1, the terrace 1 of this embodiment comprises a roof body 2 and two support columns 11. The rear side of the roof body 2 is connected to the wall portion 10a of the building 10, and the front end of the roof body 2 is supported by the two support columns 11. The roof body 2 comprises a rafter hanger 3 (rear member) fixed to the wall portion 10a of the building 10, a front frame 4 (front member) positioned away from the rafter hanger 3 on the opposite side from the wall portion 10a of the building 10, a plurality of rafters 5 extending between the rafter hanger 3 and the front frame 4 and arranged side by side in the left-right direction, a plurality of panel members 6 attached between adjacent rafters 5 and arranged side by side in the left-right direction, and a downpipe 7. The roof body 2 slopes downward from the rafter hanger 3 side toward the front frame 4 side.

[0012] A horizontal gutter 41 that opens upward is formed in the front frame 4. The horizontal gutter 41 extends in the left-right direction. Two drainage openings 42 are provided in the bottom plate portion 411 of the horizontal gutter 41. The two drainage openings 42 are spaced apart in the left-right direction of the horizontal gutter 41 and are each formed by a circular opening that penetrates the bottom plate portion 411 of the horizontal gutter 41 in the vertical direction. In this embodiment, the two drainage openings 42 are provided at multiple locations in the longitudinal direction of the horizontal gutter 41 to allow for flexibility in the installation position of the downpipe 7. The number of drainage openings 42 is not limited. Three or more drainage openings 42 may be provided.

[0013] As shown in Figure 1, a downpipe 7 is connected to one of the two drainage openings 42, drainage opening 43. The drainage opening 43 communicates with the interior of the downpipe 7. The downpipe 7 has a horizontal portion 71 that extends from one drainage opening 43 through the lower part of the horizontal pipe 41 to one of the support columns 11, and a vertical portion 72 that is connected to the end of the horizontal portion 71 opposite to the drainage opening 43.

[0014] Of the two drainage openings 42, the unused drainage opening 44 is blocked by the drainage opening 44 blocking structure 8 of the gutter 41, as shown in Figures 1 to 4.

[0015] As shown in Fig. 2, a pair of small holes 45 are provided at positions adjacent to the drainage opening 42 in the bottom plate portion 411 of the horizontal gutter 41. The small holes 45 have a smaller opening area than the drainage opening 42. A pair of small holes 45 are provided with the drainage opening 42 interposed therebetween. The pair of small holes 45 are respectively arranged apart from one side and the other side in the longitudinal direction of the horizontal gutter 41 with respect to the drainage opening 42.

[0016] In the case where the vertical gutter 7 is connected to the drainage opening 42, when the pair of small holes 45 are used, screws for fixing the upper end portion of the vertical gutter 7 connected to the drainage opening 42 are inserted. When the pair of small holes 45 are not used, they are blocked by the blocking member 81 of the blocking structure 8 of the drainage opening 44 of the horizontal gutter 41.

[0017] The blocking structure 8 of the drainage opening 44 of the horizontal gutter 41 will be described. As shown in Figs. 2 to 4, the blocking structure 8 of the drainage opening 44 of the horizontal gutter 41 is a structure in which the unused drainage opening 44 among the two drainage openings 42 is blocked by the blocking member 81.

[0018] As shown in Fig. 5, the blocking member 81 is formed in an oval shape extending in the direction in which the horizontal gutter 41 extends in plan view. As shown in Figs. 4 and 5, the blocking member 81 includes a plug-shaped portion 82, a circumferential sealing portion 85, a receiving portion 86, and two pin members 87.

[0019] The plug-shaped portion 82 is configured to be press-fitted into the drainage opening 44 from below the drainage opening 44. The plug-shaped portion 82 is configured to be elastically deformable. As shown in Figs. 4 and 5, the plug-shaped portion 82 has a plug-shaped portion main body 83 and a plurality of plug-shaped portion engaging portions 84.

[0020] The plug-shaped portion main body 83 is formed in a cylindrical shape and has a bottom portion 831 and a peripheral wall portion 832. The bottom portion 831 is disposed below the drainage opening 44 of the horizontal gutter 41 and is formed in a disc shape. The peripheral wall portion 832 is formed in a peripheral wall shape protruding from the outer peripheral edge of the bottom portion 831 toward the horizontal gutter 41 side.

[0021] As shown in Figures 6 and 7, the peripheral wall portion 832 is formed in the shape of a double wall with the upper end closed and the lower end open. As shown in Figures 6 and 7, when the sealing member 81 is attached to the drainage opening 44 of the gutter 41, the peripheral wall portion 832 is positioned to penetrate the drainage opening 44.

[0022] The peripheral wall portion 832 has an inner peripheral wall 833, an outer peripheral wall 835, and an annular closing upper end 834 that connects the upper ends of the inner peripheral wall 833 and the outer peripheral wall 835. The inner peripheral wall 833 rises from the entire outer peripheral edge of the bottom portion 831 towards the gutter 41. The upper end of the inner peripheral wall 833 is connected to the inner peripheral end of the annular closing upper end 834. The upper end of the outer peripheral wall 835 is connected to the outer peripheral end of the annular closing upper end 834, extends downward toward the receiving portion 86, and its lower end is connected to the receiving portion 86.

[0023] As shown in Figure 4, the outer surface of the outer wall 835 has an intermediate outer surface portion 832a and an upper inclined outer surface portion 832b.

[0024] The intermediate outer peripheral surface portion 832a extends vertically in the middle of the outer peripheral wall 835 in the vertical direction, with an outer diameter approximately the same as the diameter of the drainage opening 44. When the sealing member 81 is attached to the drainage opening 44 of the gutter 41, the intermediate outer peripheral surface portion 832a is positioned in contact with or close to the drainage opening 44. The upper inclined outer peripheral surface portion 832b extends upward from the upper end of the intermediate outer peripheral surface portion 832a and is inclined such that its outer diameter decreases from the lower side to the upper side.

[0025] Multiple plug-shaped engagement portions 84 are intermittently provided at circumferential distances on the upper inclined outer peripheral surface portion 832b (outer peripheral surface) of the plug-shaped body 83. In this embodiment, as shown in Figure 5, six plug-shaped engagement portions 84 are provided at circumferential distances.

[0026] As shown in Figure 6, the multiple plug-shaped engaging portions 84 are formed to protrude radially outward at the lower end of the upper inclined outer peripheral surface portion 832b. When the sealing member 81 is attached to the drainage opening 44 of the gutter 41, each of the multiple plug-shaped engaging portions 84 is press-fitted into the drainage opening 44 and engaged.

[0027] As shown in Figures 4 and 6, the multiple plug-shaped engagement portions 84 are formed along the upper inclined outer peripheral surface portion 832b of the plug-shaped body 83. Each of the multiple plug-shaped engagement portions 84 is formed in a triangular shape, as shown in Figure 4, where the circumferential length increases from the top to the bottom when viewed from diagonally above, and protrudes radially outward from the upper inclined outer peripheral surface portion 832b at the lower end of the upper inclined outer peripheral surface portion 832b to the plug-shaped body 83. When the sealing member 81 is attached to the drainage opening 44 of the gutter 41, the multiple plug-shaped engagement portions 84 are press-fitted and engaged with the peripheral edge of the drainage opening 44 on the bottom plate portion 411 of the gutter 41.

[0028] As shown in Figures 4 and 5, the circumferential seal portion 85 is formed in an oval ring shape surrounding the plug-shaped portion 82. As shown in Figures 6 and 7, the circumferential seal portion 85 is pressed against the lower surface of the gutter 41 in a state inclined so as it moves from the receiving portion 86 side toward the gutter 41 side toward the radially outward direction of the drainage opening 44. The circumferential seal portion 85 is configured to be elastically deformable. Outside the drainage opening 44, the circumferential seal portion 85 is positioned in a state of elastic deformation and pressed against the lower surface of the gutter 41.

[0029] The receiving portion 86 connects the lower end of the outer peripheral wall 835 of the circumferential wall portion 832 of the plug-shaped portion 82 to the lower end of the circumferential sealing portion 85. The receiving portion 86 is formed as a horizontally extending plate shape at the lower end of the sealing member 81 so as to fill the gap between the lower end of the outer peripheral wall 835 of the circumferential wall portion 832 and the lower end of the circumferential sealing portion 85.

[0030] The two pin members 87 are formed in the shape of pins that protrude from the receiving portion 86 toward the gutter 41. As shown in Figure 7, the pin members 87 are formed in the shape of cylinders with a closed upper end and an open lower end. The two pin members 87 are formed to be elastically deformable and are press-fitted into two small holes 45 provided on either side of the drainage opening 44 of the gutter 41. The two pin members 87 are provided on either side of the plug-shaped portion 82. The two pin members 87 are positioned apart from the plug-shaped portion 82, on one side and the other side in the longitudinal direction of the plug-shaped portion 82.

[0031] By inserting the pin member 87 into the small hole 45, the pin member 87 is installed in a press-fitted state within the small hole 45. The pin member 87 has an upper frustoconical cylindrical portion 871 and an intermediate cylindrical portion 872.

[0032] The intermediate cylindrical portion 872 is formed to have an outer diameter slightly larger than the diameter of the small hole 45 at the middle of the pin member 87 in the vertical direction, so that the pin member 87 can be press-fitted into the small hole 45 without excessively hindering its insertion into the small hole 45. The upper frustoconical portion 871 extends upward from the upper end of the intermediate cylindrical portion 872. The upper end of the upper frustoconical portion 871 is formed to be horizontal, and it has an inclined surface that slopes so that its outer diameter decreases as it moves upward from the upper end of the intermediate cylindrical portion 872.

[0033] Each pin member 87 has three protrusions 873 formed on its outer circumferential surface. Each of the three protrusions 873 is pressed into the small hole 45 by the pin member 87, overcoming the bottom plate portion 411 of the gutter 41, and engaging with the small hole 45. Each of the three protrusions 873 is spaced apart in the circumferential direction of the pin member 87 on its outer circumferential surface. The three protrusions 873 consist of two first protrusions 873a and one second protrusion 873b.

[0034] The two first protrusions 873a are provided on the outer circumferential surface of the pin member 87, on one side and the other side in the short direction of the blocking member 81. The two first protrusions 873a are provided in the middle of the protruding direction of the pin member 87.

[0035] The two first projections 873a engage with the upper surface of the bottom plate portion 411 of the gutter 41 when the sealing member 81 is attached to the drainage opening 44 of the gutter 41. When the two first projections 873a engage with the upper surface of the bottom plate portion 411 of the gutter 41, the circumferential seal portion 85 is in a state of being pressed against the lower surface of the bottom plate portion 411 of the gutter 41.

[0036] One second projection 873b is provided on the inner side of the longitudinal direction of the sealing member 81 on the outer circumferential surface of each of the two pin members 87. The one second projection 873b is provided partway along the protruding direction of the pin member 87, and is located closer to the tip than the first projection 873a.

[0037] The pin member 87 is configured to be press-fitted into the small hole 45, and the three protrusions 873 are also configured to be press-fitted into the small hole 45, while the three protrusions 873 make it difficult for the pin member 87 to come loose from the bottom plate portion 411 of the gutter 41. Furthermore, when two of the three protrusions 873, the first protrusions 873a, are engaged with the upper surface of the bottom plate portion 411 of the gutter 41, the circumferential seal portion 85 is pressed against the lower surface of the bottom plate portion 411 of the gutter 41.

[0038] The material of the sealing member 81 configured as described above is, for example, an elastically deformable resin material. Because the sealing member 81 is made of, for example, an elastically deformable resin material, the plug-shaped portion 82 can be deformed into the drainage opening 44 and press-fitted, the pin member 87 can be deformed into the small hole 45 and press-fitted, and the circumferential sealing portion 85 can be deformed into the lower surface of the gutter 41 and pressed against it.

[0039] In the above-described sealing structure 8 for the drainage opening 44 of the gutter 41, the sealing member 81 is moved from below the gutter 41 and the plug-shaped portion 82 is pressed into the drainage opening 44 of the gutter 41, thereby ensuring watertight sealing performance and allowing the sealing member 81 to be easily attached to the drainage opening 44 without using screws.

[0040] Furthermore, the receiving portion 86 can receive water even if water leaks from between the plug-shaped portion 82 and the drainage opening 44 when the sealing member 81 is attached to the drainage opening 44 of the gutter 41 and the plug-shaped portion 82 is pressed into the drainage opening 44. It can also receive water even if water leaks from between the pin member 87 and the small hole 45 when the pin member 87 is pressed into the small hole 45.

[0041] According to this embodiment, the following effects are achieved. The sealing structure 8 for the drainage opening 44 of the gutter 41 in this embodiment comprises a gutter 41 having a drainage opening 44 and a sealing member 81 that seals the drainage opening 44. The sealing member 81 has a plug-shaped portion 82 that can be pressed into the drainage opening 44 from below. Therefore, by moving the sealing member 81 to the drainage opening 44 from the lower side of the gutter 41 and pressing the plug-shaped portion 82 into the drainage opening 44, the sealing member 81 can be easily attached to the drainage opening 44 from the lower side of the gutter 41 while ensuring water-stopping performance.

[0042] Furthermore, in this embodiment, the plug-shaped portion 82 is configured to be elastically deformable and includes a cylindrical plug-shaped portion body 83 having a bottom portion 831, and a plurality of plug-shaped portion engaging portions 84 provided on the outer circumferential surface of the plug-shaped portion body 83 that are press-fitted into and engaged with the drainage opening 44. This ensures the water-stopping performance of the plug-shaped portion 82. In addition, in this embodiment, since the plurality of plug-shaped portion engaging portions 84 are provided spaced apart in the circumferential direction on the outer circumferential surface of the plug-shaped portion body 83, it is easy to press-fit the plug-shaped portion 82 into the drainage opening 44 and to engage the plug-shaped portion 82 with the drainage opening 44. Therefore, the plug-shaped portion 82 can be attached to the drainage opening 44 more easily while ensuring the water-stopping performance of the plug-shaped portion 82.

[0043] Furthermore, in this embodiment, the sealing member 81 has a circumferential sealing portion 85 which is formed in an annular shape surrounding the plug-shaped portion 82 and is positioned in a state of being pressed against the lower surface of the gutter 41 on the outside of the drainage opening 44, and a receiving portion 86 which connects the plug-shaped portion 82 and the circumferential sealing portion 85. As a result, the plug-shaped portion 82 is surrounded by the circumferential sealing portion 85, so that the drainage opening 44 is sealed by the plug-shaped portion 82, and furthermore, the circumferential sealing portion 85 is positioned in a state of being pressed against the lower surface of the gutter 41 on the outside of the plug-shaped portion 82. As a result, the sealing is performed at two locations, the plug-shaped portion 82 provided on the inside of the sealing member 81 and the circumferential sealing portion 85 provided on the outside, so the water-stopping performance can be further improved.

[0044] Furthermore, in this embodiment, the horizontal gutter 41 has a small hole 45 positioned adjacent to the drainage opening 44 and having a smaller opening area than the drainage opening 44, and the sealing member 81 is formed to protrude from the receiving portion 86 toward the horizontal gutter 41 and includes a pin member 87 that is press-fitted into the small hole 45. By pressing the pin member 87 into the small hole 45, the water-stopping performance can be improved and displacement of the sealing member 81 can be suppressed.

[0045] Furthermore, in this embodiment, two small holes 45 are provided on either side of the drainage opening 44, and two pin members 87 are provided on either side of the plug-shaped portion 82, and are press-fitted into the small holes 45. By press-fitting at two locations on either side of the plug-shaped portion 82, displacement of the sealing member 81 due to rotation can be prevented. Thus, by preventing displacement of the sealing member 81 due to rotation, the water-stopping performance can be further improved.

[0046] Furthermore, in this embodiment, the circumferential sealing portion 85 is configured to be elastically deformable. The circumferential sealing portion 85 is inclined so as it moves from the receiving portion 86 side toward the gutter 41 side toward the radially outward direction of the drainage opening 44. As a result, even if water leaks from between the plug-shaped portion 82 and the drainage opening 44 and accumulates in the receiving portion 86, the circumferential sealing portion 85 prevents water from falling from the sealing member 81.

[0047] While a preferred embodiment of the present disclosure has been described above, the present disclosure is not limited to the embodiment described above and can be modified as appropriate.

[0048] For example, in the above embodiment, the sealing member 81 is configured to have a plug-shaped portion 82, a circumferential sealing portion 85, and a receiving portion 86, but it is not limited to this. The sealing member 81 only needs to have at least a plug-shaped portion 82, and does not need to have a circumferential sealing portion 85 and a receiving portion 86.

[0049] Furthermore, in the above embodiment, a plurality of plug-shaped engagement portions 84 are provided on the outer circumferential surface of the plug-shaped body 83, but the embodiment is not limited to this. The plug-shaped engagement portions 84 may be provided around the entire circumference of the outer circumferential surface of the plug-shaped body 83.

[0050] Furthermore, in the above embodiment, a pair of small holes 45 are formed in the bottom plate portion 411 of the gutter 41, and a pin member 87 is provided on the sealing member 81, but the embodiment is not limited to this. If the small holes 45 are not formed in the bottom plate portion 411 of the gutter 41, the pin member 87 does not need to be provided on the sealing member 81.

[0051] Furthermore, although a projection 873 is provided on the outer circumferential surface of the pin member 87 in the above embodiment, the invention is not limited to this. The pin member 87 may be configured so that only the pin member 87 itself can be press-fitted into the small hole 45 without providing a projection 873 on the outer circumferential surface of the pin member 87. [Explanation of Symbols]

[0052] 8. Closing structure for drainage opening of horizontal gutter, 41. Horizontal gutter, 44. Drainage opening, 45. Small hole, 81. Closing member, 82. Plug-shaped part, 83. Plug-shaped part body, 84. Plug-shaped part engaging part, 85. Circumferential seal part, 86. Receiving part, 87. Pin member, 831. Bottom part

Claims

1. A drainage opening closing structure for a horizontal gutter, comprising a horizontal gutter having a drainage opening and a closing member that closes the drainage opening, The sealing member has a plug-shaped portion that can be pressed into the drainage opening from below the drainage opening, and a receiving portion that extends outward from the outer circumference of the plug-shaped portion below the gutter. The receiving portion has a water receiving portion that receives water from between the drainage opening and the sealing member. The water receiving portion has a horizontal surface. A structure for blocking the drainage opening of a horizontal gutter.

2. The horizontal surface is formed in an oval shape when viewed from above. A structure for blocking the drainage opening of a horizontal gutter, as described in claim 1.

3. The drainage opening blocking structure for a gutter according to claim 1 or 2, wherein the horizontal plane is positioned below the lower surface of the gutter, parallel to the lower surface of the gutter, and extends in a planar shape.

4. The plug-shaped portion comprises a cylindrical plug-shaped body having a bottom and configured to be elastically deformable, and a plug-shaped engaging portion provided on the outer circumferential surface of the plug-shaped body which is pressed into and engaged with the drainage opening, the drainage opening closing structure for a horizontal gutter according to any one of claims 1 to 3.

5. The aforementioned sealing member is, A circumferential seal portion is formed in an annular shape surrounding the plug-shaped portion and is positioned in a state of being pressed against the lower surface of the gutter on the outside of the drainage opening, A drainage opening sealing structure for a gutter according to any one of claims 1 to 4, comprising a receiving portion that connects the plug-shaped portion and the circumferential sealing portion below the gutter.

6. The drainage opening sealing structure for a gutter according to claim 5, wherein the circumferential sealing portion is configured to be elastically deformable and is inclined to move radially outward from the receiving portion side toward the gutter side.

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