Rain cover structure

The rain protection structure addresses the issue of rainwater contamination on the underside of rain-repellent structures by incorporating an inclined water drain plate that directs rainwater away from the lower surface, effectively preventing contamination.

JP2025066566APending Publication Date: 2025-04-23OHBAYASHI GUMI LTD
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Patent Information

Application Number
JP2023176261
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-10-11
Publication Date
2025-04-23

AI Technical Summary

Technical Problem

Conventional rain-repellent structures in buildings suffer from rainwater overflowing from gutters or splashing from gutters flowing down to the underside of the rain-repellent body, leading to contamination of the lower surface.

Method used

A rain protection structure featuring a rain protection body with a gutter and a water drain plate attached to the tip of the rain protection body, where the drain plate extends along the longitudinal direction and protrudes downward from the bottom surface, inclined to guide rainwater away from the outer wall.

Benefits of technology

This configuration effectively prevents rainwater from flowing to the lower surface of the rain protection body, thereby preventing contamination and ensuring the underside remains clean.

✦ Generated by Eureka AI based on patent content.

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  • Figure 2025066566000001_ABST
    Figure 2025066566000001_ABST
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Abstract

To provide a rain cover structure capable of preventing an under surface of a rain cover body from being smeared.SOLUTION: A rain cover structure 10 arranged on a building 1 comprises: a rain cover body 5 (eaves, awnings) projecting outward further than an outer wall 3 of the building 1; a rain gutter 11 attached on a tip of the rain cover body 5; and a drain board 13 attached on the tip of the rain cover body 5 and extending in a longitudinal direction of the rain gutter 11 to project downward from a lower surface 5e1 of the rain cover body 5.SELECTED DRAWING: Figure 3
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Description

[Technical field]

[0001] The present invention relates to a rain protection structure provided on a building. [Background technology]

[0002] In buildings such as houses and student dormitories, rain guards are often installed to prevent rainwater from entering the building through windows or entrances on the exterior walls. For example, eaves that protrude outward from the exterior walls are installed on the roof of a building as rain guards, and overhanging eaves are installed above the windows and entrances as rain guards.

[0003] Such rain guards generally have a rain guard body, such as an eaves or overhang that protrudes outward from the exterior wall of a building, and a rain gutter attached to the end of the rain guard body, with the rainwater that flows down from the end of the rain guard body being caught in the rain gutter (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2022-77075 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the above-mentioned conventional rain guard structure, when rainwater overflows from the gutter or splashes out from the gutter and falls on the tip surface of the rain guard body, the rainwater flows around from the tip surface of the rain guard body to the underside of the rain guard body, causing the underside to become dirty with the rainwater.

[0006] The present invention has been made in consideration of such problems, and its purpose is to provide a rain guard structure that can prevent the underside of the rain guard body from becoming dirty. [Means for solving the problem]

[0007] The rain protection structure of the present invention is a rain protection structure installed on a building, characterized in having a rain protection main body protruding outward from the exterior wall of the building, a rain gutter attached to the end of the rain protection main body, and a water drip plate attached to the end of the rain protection main body, extending along the longitudinal direction of the rain gutter and protruding downward from the underside of the rain protection main body.

[0008] In the rain protection structure of the present invention, in the above-mentioned configuration, it is preferable that the portion of the drip board protruding downward from the underside of the rain protection body is inclined so as to gradually move downward away from the outer wall.

[0009] In the rain protection structure of the present invention, in the above-mentioned configuration, it is preferable that the rain protection main body is an eaves that constitutes part of the roof of the building. Effect of the Invention

[0010] According to the present invention, it is possible to provide a rain guard structure capable of preventing the underside of the rain guard body from becoming dirty. [Brief description of the drawings]

[0011] [Figure 1] 1 is a front view of a portion of a building equipped with a rain protection structure according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a cross-sectional view taken along line AA in FIG. [Diagram 3] 3 is an enlarged cross-sectional view of a range B in FIG. 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A rain shield structure according to an embodiment of the present invention will now be described in detail with reference to the drawings.

[0013] A building 1 shown in Fig. 1 is a building to which a rain protection structure 10 according to one embodiment of the present invention is applied. This building 1 is made of reinforced concrete and has multiple floors, and can be used, for example, as a residence or a student dormitory. The building 1 has a hipped roof 2, and an exterior wall 3 is provided with windows 4 corresponding to each floor.

[0014] The building 1 to which the rain protection structure 10 of this embodiment is applied is not limited to a multi-story reinforced concrete structure, but may be of other structures such as wood or steel frame, and the number of stories can be changed in various ways. The use of the building 1 is also not limited to the above. Furthermore, the roof 2 of the building 1 is not limited to a hipped roof structure, but may be of other styles or types such as a gabled roof structure.

[0015] As shown in Fig. 2, the roof 2 has integral eaves 5 that protrude outward beyond the exterior wall 3. The eaves 5 form the rain protection main body of the rain protection structure 10 of this embodiment. That is, in this embodiment, the rain protection main body is the eaves 5 that forms part of the roof 2 of the building 1. The eaves 5 protrude above the windows 4 on the top floor, thereby preventing rainwater from entering the building 1 through the windows 4.

[0016] The eaves 5 have a structural portion 5a supported by the roof 2 or the framework of the building 1, and a sheathing board 5b is fixed above the structural portion 5a. The sheathing board 5b is inclined so that its height from the ground gradually decreases from the base end (the end on the side of the exterior wall 3) of the eaves 5 to the tip (the end away from the exterior wall 3), and multiple roof materials 5c are arranged on top of it. In other words, the top surface 5d of the eaves 5 is inclined so that its height from the ground gradually decreases from the base end of the eaves 5 to the tip.

[0017] Meanwhile, a lower plate material 5e made of a metal plate such as stainless steel is fixed to the lower side of the structural portion 5a. The lower plate material 5e is arranged horizontally between the exterior wall 3 and the tip of the eaves 5. The surface of the lower plate material 5e facing downward constitutes the lower surface 5e1 of the eaves 5, i.e., the eaves ceiling. The lower surface 5e1 of the eaves 5 does not have to be horizontal, and may be inclined.

[0018] In this embodiment, the lower plate material 5e that constitutes the underside 5e1 of the eaves 5 has a fixed portion 5e2 that is fixed to the structural part 5a by a fastening member (not shown) such as a screw, and an inclined portion 5e3 that is provided between the fixed portion 5e2 and the underside 5e1, bends at an acute angle with respect to the underside 5e1, and gradually inclines downward so as to move away from the exterior wall 3.

[0019] A tip plate 5f made of a metal plate such as stainless steel is fixed to the tip side of the structural part 5a. The tip plate 5f is disposed vertically between the sheathing board 5b and the lower board 5e, and is connected at its upper end to the sheathing board 5b and at its lower end to the lower board 5e. The surface of the tip plate 5f facing away from the exterior wall 3 constitutes the tip surface 5f1 of the eaves 5.

[0020] In this embodiment, the lower end of the tip plate material 5f is bent in a stepped shape toward the outer wall 3, and the stepped fixing portion 5f2 is fixed to the structural part 5a together with the fixing portion 5e2 of the lower plate material 5e by a fastening member such as a screw (not shown).

[0021] As shown in Figures 1 and 2, a rain gutter 11 is attached to the tip of the eaves 5, which is the rain guard main body. The rain gutter 11 is a so-called horizontal gutter, and has a gutter main body 11a that extends horizontally along the entire range of the tip of the eaves 5 with its opening facing upward, and multiple mounting fixtures 11b that each support the gutter main body 11a and are fixed to the tip surface 5f1 of the eaves 5. The multiple mounting fixtures 11b are arranged at intervals from each other, and between adjacent mounting fixtures 11b, a gap is provided between the gutter main body 11a and the tip surface 5f1 of the eaves 5.

[0022] As shown in Fig. 1, both ends of the gutter body 11a are connected to downpipes 12. Rainwater that accumulates in the gutter body 11a is discharged through the downpipes 12 to the outside.

[0023] 2, a guide plate 5g extending downward from the tip of the sheathing board 5b may be attached to the tip of the sheathing board 5b. By attaching the guide plate 5g to the tip of the sheathing board 5b, rainwater flowing down the upper surface 5d of the eaves 5 can be efficiently guided to the gutter body 11a of the rain gutter 11 by the guide plate 5g.

[0024] As shown in FIG. 3, a water drip board 13 is attached to the tip of the eaves 5, which is the rain guard body. The water drip board 13 is formed in a plate shape extending along the longitudinal direction of the rain gutter 11 by a metal plate such as stainless steel, and is fixed to the structural part 5a at the tip of the eaves 5 at the attachment part 13a. In this embodiment, the attachment part 13a is overlapped with the fixing part 5f2 of the tip plate material 5f and the fixing part 5e2 of the lower plate material 5e, and is fixed to the structural part 5a together with the fixing part 5f2 and the fixing part 5e2 by a fastening member (not shown) such as a screw. The water drip board 13 has a water drip main body part 13b extending downward from the attachment part 13a as an integral part, and the lower end of the water drip main body part 13b protrudes downward from the lower surface 5e1 of the eaves 5.

[0025] In this embodiment, the portion of the drain board 13 that protrudes downward from the underside 5e1 of the eaves 5 is inclined so as to gradually move downward away from the exterior wall 3. More specifically, the drain board main body portion 13b of the drain board 13 is longer in the vertical direction than the inclined portion 5e3 of the lower plate material 5e, and is arranged overlapping the inclined portion 5e3 of the lower plate material 5e so as to gradually move downward away from the exterior wall 3 in the same manner as the inclined portion 5e3, while its lower end portion protrudes downward from the underside 5e1 of the eaves 5 while maintaining the inclination.

[0026] The amount or length of downward projection of the drainage board 13 from the underside 5e1 of the eaves 5 may be set by conducting experiments or the like in advance so that rainwater flowing along the outer side surface facing the opposite side to the underside 5e1 of the drainage board 13 does not flow from the lower end of the drainage board 13 around the inner side facing the underside 5e1 of the drainage board 13 and reach the underside 5e1. It is preferable that the drainage board 13 projects downward from the underside 5e1 of the eaves 5 over the entire range in the longitudinal direction of the gutter 11, but the range can be changed as appropriate.

[0027] In this way, in the rain protection structure 10 according to the present embodiment, a drip board 13 is provided at the tip of the eaves 5, which is the rain protection main body, extending along the longitudinal direction of the rain gutter 11 and protruding downward from the underside 5e1 of the eaves 5. As a result, even if rainwater overflowing from the rain gutter 11 or rainwater splashing from the rain gutter 11 falls on the tip surface 5f1 of the eaves 5 and flows downward along the tip surface 5f1, the rainwater is guided from the tip surface 5f1 to the drip board 13 and flows downward from the lower end of the drip board 13 below the underside 5e1 of the eaves 5. Therefore, the rainwater overflowing from the rain gutter 11 or rainwater splashing from the rain gutter 11 does not flow around the tip surface 5f1 of the eaves 5 to the underside 5e1, and the underside 5e1 of the eaves 5 is prevented from being soiled by rainwater.

[0028] In addition, in the rain protection structure 10 of this embodiment, the drainage board 13 can prevent rainwater overflowing from the rain gutter 11 or splashing out from the rain gutter 11 from directly hitting the underside 5e1 of the eaves 5, which also helps to prevent the underside 5e1 of the eaves 5 from being soiled by rainwater.

[0029] Furthermore, in the rain protection structure 10 according to this embodiment, the portion of the drainage board 13 that protrudes downward from the underside 5e1 of the eaves 5 is configured to be inclined so as to gradually move downward away from the exterior wall 3, so that the rainwater guided from the tip surface 5f1 to the drainage board 13 flows obliquely from the lower end of the drainage board 13 toward the opposite side to the underside 5e1, and it is possible to more reliably prevent the rainwater from flowing around the underside 5e1 of the eaves 5. Therefore, with this configuration, it is possible to more reliably prevent the underside 5e1 of the eaves 5 from being soiled by rainwater.

[0030] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the present invention.

[0031] For example, in this embodiment, a rain protection structure 10 has been described in which the eaves 5 is used as the rain protection main body. However, as shown in FIG. 1, in a configuration in which a eaves 20 protruding outward from the exterior wall 3 is provided between a window 4 on the top floor and a window 4 on a lower floor, and a rain gutter 11 is attached to the tip of the eaves 20, the eaves 20 may be used as the rain protection main body, and a drip board 13 of the same configuration as described above may be attached to the tip of the eaves 20 to form the rain protection structure 10.

[0032] In addition, in this embodiment, the drain board 13 is configured so that the portion protruding downward from the underside 5e1 of the eaves 5 is inclined so that it gradually moves away from the exterior wall 3 in the downward direction, but this is not limited to the above. For example, the portion protruding downward from the underside 5e1 of the eaves 5 may be inclined so that it gradually moves closer to the exterior wall 3 in the downward direction, or the portion protruding downward from the underside 5e1 of the eaves 5 may extend vertically downward.

[0033] Furthermore, in this embodiment, the portion of the drain board 13 that protrudes downward from the underside 5e1 of the eaves 5 is a flat plate, but this is not limited to this, and the shape can be modified in various ways, for example, to a curved plate, as long as its lower end is located below the underside 5e1 of the eaves 5. [Explanation of symbols]

[0034] 1. Building 2. Roof 3. Exterior Wall 4. Windows 5 Eaves (rain cover body) 5a Structural part 5b Field board 5c Roofing materials 5d top 5e Lower plate 5e1 Bottom side 5e2 Fixed part 5e3 Inclined section 5f Tip plate material 5f1 Tip surface 5f2 Fixed part 5g signboard 10 Rain protection structure 11 Rain gutters 11a Gutter body 11b Mounting fixture 12 Downpipe 13 Draining board 13a Mounting part 13b Drainer body 20 Eaves (rain cover body)

Claims

1. A rain protection structure provided on a building, A rain cover body protruding outward from the exterior wall of the building; A rain gutter attached to the tip of the rain guard body; A rain guard structure characterized by having a drip plate attached to the tip of the rain guard body, extending along the longitudinal direction of the rain gutter, and protruding downward from the underside of the rain guard body.

2. The rain protection structure according to claim 1 , wherein a portion of the drip board that protrudes downward from the underside of the rain protection body is inclined so as to gradually move away from the outer wall in a downward direction.

3. The rain protection structure according to claim 1 or 2, wherein the rain protection body is an eave that constitutes part of the roof of the building.

Citation Information

Patent Citations

  • Rain gutter system

    JP2022077075A