JP2025033147A - Covering material and eaves structure - Google Patents

Abstract

To provide a cover material and an eaves edge structure that prevent clogging of a roof gutter with pine needles and small dead leaves blown around by strong winds.SOLUTION: A cover material 1 is provided above a roof gutter 4 and comprises a drainage hole 211 for draining rainwater to the underside, and projections 31 protruding to the surface side above the drainage hole 211.SELECTED DRAWING: Figure 1

Description

The present invention relates to a covering material and eaves structure that can prevent coniferous trees and small dead leaves, etc., that are blown away by strong winds, etc. from clogging eaves gutters.

On the roofs of buildings, various gutters such as eaves gutters and interior gutters are installed as channels for carrying rainwater, but if fallen leaves or dead trees get mixed in with the rainwater, the gutters will become clogged. To prevent this, it has been common to use covering materials on the surfaces of the gutters that have inlets that make it difficult for fallen leaves to get in, or to install covering materials with a mesh pattern on the entire surface.
Patent Document 1 proposes a gutter structure in which multiple gutter covers, both ends of which are folded down, are installed in parallel with gaps in the flow direction, and rainwater flowing down is introduced into the gutter through the "gaps" between adjacent gutter covers.

JP 2021-156151 A

However, in the structure of Patent Document 1, fallen leaves, dead trees, and other vegetation, as well as soil and sand, are mixed with the rainwater flowing down in the direction of flow, so coniferous leaves and small dead leaves may enter (fall into) the gutter through the "gaps" in the gutter cover, and if a large amount of fallen leaves flow along with the rain (large accumulation on the roof), they may block the gaps or become trapped.
In addition, fallen leaves that get into the gutters may accumulate inside the gutters or at the outlet of the downspout depending on the length of the gutter itself, the position of the downspout, and other installation conditions, as well as the amount of rainfall, which may lead to a decrease in drainage performance or overflow.
Furthermore, fallen leaves that get caught in the gutter cover act as a dam, causing more and more leaves to gradually pile up, reducing the drainage function from the gutter cover to the gutter.In addition, dead leaves and other debris accumulate on the gutter cover, which damages the appearance of the area.

The present invention aims to propose a covering material and eaves structure that can prevent clogging of eaves gutters caused by coniferous trees and small dead leaves that are blown away by strong winds, etc.

In light of the above, we have discovered that by providing a drainage hole on the downstream side of the flow gradient of the roof surface to guide rainwater to the back side, and by adopting a structure in which a portion (protrusion) protruding to the front side is provided on the above-water side of the drainage hole, it is possible to stop coniferous trees and small dead leaves, etc., that may mix with the rainwater being guided from the drainage hole to the back side and cause clogging. The present invention also proposes a covering material to which the aforementioned structure is applied, and an eaves structure in which the aforementioned structure is applied to a roof surface including the covering material.

The present invention relates to a covering material that is placed above an eaves gutter and is characterized by having a drainage hole that directs rainwater to the back side and a protrusion toward the front side on the above-water side of the drainage hole.

The present invention also proposes an eaves structure in which a cover material is placed above the eaves gutter at the eaves of the roof surface, the cover material has a drainage hole in its panel portion that directs rainwater to the back side, and the cover material and/or the roof surface have a protrusion toward the front side on the above-water side of the drainage hole.

The covering material of the present invention is positioned above the eaves gutter and has a drainage hole that directs rainwater to the back side, and a protrusion toward the front side on the above-water side of the drainage hole. Therefore, the protrusion on the above-water side can prevent the progression of coniferous trees such as Japanese larch and small dead leaves, which are prone to clogging the gutter, due to the roof slope, and other rainwater can be guided into the eaves gutter through the drainage hole on the below-water side of the protrusion and drained.
This cover material can be provided in two forms: one in which a protrusion is formed on the panel portion itself, and one in which a band-shaped face piece with a protrusion formed thereon is fixed (integrated) to the panel portion of the main body. In either form, the protrusion can be easily formed, so the effort and cost involved can be kept low.

In addition, the eaves structure of the present invention has a covering material placed above the eaves gutter at the eaves of the roof surface, and the covering material has a drainage hole in its panel portion that directs rainwater to the back side, and a protrusion toward the front side is provided on the above-water side of the drainage hole, so that the structure has a protrusion formed on the roof surface etc. including the covering material, but the progression of coniferous trees such as Japanese larch and small dead leaves, which are prone to clogging the gutter, due to the roof slope can be prevented by the protrusion on the roof surface etc. including the covering material, and other rainwater can be guided into the eaves gutter through the drainage hole in the roof surface etc. on the below-water side of the protrusion and drained.
This eaves structure can be implemented in two ways: one in which a protrusion is formed on the roof material that forms the roof surface or on the cover material itself, and one in which a band-shaped surface body with a protrusion formed thereon is fixed (integrated) to the roof surface.In either embodiment, the protrusion can be easily formed, so the effort and cost involved can be kept low.

FIG. 1A is a side cross-sectional view showing an example of an eaves structure using the covering material of the first embodiment of the present invention; FIG. 1B is an enlarged perspective view of a band-shaped surface body to be superimposed on the covering material; and FIG. FIG. 2 is a perspective view of an eaves structure using the covering material of Example 1. FIG. 11 is a perspective view of an eaves structure using the covering material of Example 2. FIG. 13A is a side cross-sectional view showing an example of an eaves structure using the cover material of Example 3, and FIG. 13B is an enlarged perspective view showing a band-shaped surface body to be superimposed on the cover material. FIG. 11 is a perspective view of an eaves structure using the covering material of Example 4.

The covering material of the present invention is characterized in that it is positioned above the eaves gutter, has a drainage hole through which rainwater is guided to the back side, and has a protrusion toward the front side on the above-water side of the drainage hole.
The present invention also proposes an eaves structure in which a covering material is placed above the eaves gutter at the eaves of the roof surface, the covering material having a drainage hole in its panel portion through which rainwater is directed to the back side, and the covering material and/or the roof surface having a protrusion toward the front side on the above-water side of the drainage hole.

As described above, the present invention adopts a structure in which a drainage hole is provided on the downstream side of the flow gradient of the roof surface to guide rainwater to the back side, and a portion (protrusion) is provided on the above-water side of the drainage hole that protrudes to the front side, and proposes a covering material (first specification) to which the above-mentioned structure is applied, and an eaves structure in which the above-mentioned structure is applied to a roof surface including a covering material (second specification).
This first specification cover material comes in two forms: one in which a protrusion is formed on the panel portion itself, and one in which a band-shaped face piece with a protrusion formed thereon is fixed (integrated) to the panel portion of the main body. However, because the protrusion can be easily formed, effort and costs can be kept low in either form.
That is, the first specification cover material has a protrusion as an essential component, whereas the second specification cover material does not necessarily have to have a protrusion.

The drainage hole is a portion through which rainwater is guided from the flat surface plate provided in both the first and second covering materials to the back side, and may be formed only with a plurality of perforations (openings) penetrating the surface plate, or may be formed with a guide portion that slopes continuously from the front side to the back side and an opening portion formed on the downstream side of the guide portion. Note that in the latter specification, the guide portion is at least partially arc-shaped with its center or center of gravity located on the back side, and rainwater is reliably guided from this guide portion in the depth direction to fall into the eaves gutter.
It is desirable that a plurality of these drainage holes are provided in each of the flow direction and the width direction, and that they are arranged in a phased manner in the flow direction.

The protrusion is a part formed on the first specification cover material (main body or band-shaped face body) and protrudes from the panel portion toward the surface side. There are no limitations on the shape or number of the protruding parts, and they may be, for example, needle-shaped or small piece-shaped, and may be selected based on various conditions such as the location of the building and the shape of the roof.
The protruding portion having the small protruding portion is easily formed, for example, by cutting a predetermined shape and folding up the inner portion from the back side to the front side, as shown in the illustrated embodiment described later. In this specification, a through hole is formed by folding up, so if the protruding portion is formed on the main body itself, rainwater can be guided from the through hole to the back side.

Although no other configuration is specified for this cover material, it is desirable for it to have a configuration for being placed above the eaves gutter, and such a configuration may include a configuration in which an attachment portion is provided at at least one of the above-water end or below-water end, and it may be possible to provide an attachment portion at each of the above-water end and below-water end of the cover material, as in the illustrated example described below.
The attachment part to be provided on the underwater side is preferably provided with a U-shaped engagement part that engages with the upper end of the side surface on the eaves side of the eaves gutter, etc., as shown in the figure. In this case, this attachment serves to hold the eaves side of the eaves gutter up.
The mounting part on the water side is preferably fixed to the eaves arabesque etc. fixed to the exterior base with screws as shown in the figure. In this case, the weight of the eaves gutter can be borne by the eaves arabesque on the exterior base by this mounting.

Furthermore, the panel portion of this covering material may be one-plane, i.e., linear when viewed from the side, or it may be two connected planes, i.e., L-shaped when viewed from the side. In the latter case, the surface side may have a valley-shaped bottom, and the valley-shaped bottom may be provided with an eaves-side drainage groove having a concave cross-section.
In addition, when molding into an L-shape when viewed from the side, there is an embodiment in which the cover part is molded into a downward sloping surface toward the eaves, as in the illustrated example described below, and the upper surface of the below-water mounting part (C-shaped engagement part) is molded into an upward sloping surface toward the eaves, and the boundary between these forms the valley-shaped bottom.

When an eaves-side drain groove with a concave cross section that continues in the length direction is provided in this way and is formed in the valley-shaped bottom, rainwater can be reliably collected on the front side of the eaves-side drain groove, and even if there is rainwater that cannot fall to the back side (eaves gutter) through the drainage holes, etc., it can be reliably collected and drained in the length direction. Furthermore, rainwater that does not fall through the drainage holes but flows down the back side of the cover material can be reliably collected on the back side of the eaves-side drain groove and falls to the back side (eaves gutter).

When the drainage hole is formed on the downstream side of a guide section that slopes continuously from the front side to the back side of the cover material, the molding process for the drainage hole is not particularly limited. For example, the desired drainage hole can be formed by combining (simultaneously) slit processing in the width dimension and press processing with the slit processing as the bottom end.

In addition, when the protrusion is formed into a small piece by cutting a predetermined shape and folding the inner part from the back side to the front side, the molding process of the protrusion is not particularly limited, but for example, a roughly triangular piece-shaped protrusion can be formed by cutting a L-shaped cut and folding the inner part up to the front side. As described above, in this specification, a through hole is formed by folding, so if the protrusion is formed in the main body itself, rainwater can be guided from this through hole to the back side. In addition, when a protrusion is provided on the roof surface (various exterior materials), a protrusion in the shape of a protrusion is formed by bending or pressing, or the strip-shaped surface material is integrated into the surface plate of the exterior material. Furthermore, depending on the location of the building, protrusions may be provided on both the roof surface and the cover material.

This cover material is made of metal, synthetic resin, or other materials, but is not particularly limited as long as it is a material that can be processed as described above. For example, materials that are also used as horizontal exterior materials (roofing materials), typically known metal materials such as surface-decorated steel sheets, laminated steel sheets, plated steel sheets, stainless steel sheets, aluminum alloy sheets, titanium alloy sheets, copper sheets, etc., with a thickness of about 0.4 to 1.6 mm, can be used.

When the protrusions are formed on the cover material itself (main body), it is not necessary to use the band-shaped surface body. However, a band-shaped surface body with protrusions may be fixed (integrated) to the face plate of the main body to form multiple stages of protrusions in the flow direction, or it may be attached to the exterior surface (various exterior materials) above the water of the second specification cover material.

In the eaves structure of the present invention, a drainage hole is provided in the first or second specification covering material, and a protrusion is provided above the waterline of the drainage hole, so that the protrusion is formed on the exterior surface. That is, as described above, a protrusion is not necessarily formed in the second specification covering material, so that a protrusion is formed on the various exterior materials that make up the exterior surface.
As described above, the molding process of this protrusion is easy, and therefore it can be easily applied to exterior materials (forming a protrusion on the face plate of the exterior material). However, by using a strip having the aforementioned protrusion formed thereon and integrating this strip with the surface of at least one exterior material in one or more locations, the present invention can also be easily applied to the renovation of an existing roof.

Figures 1(a) and 2 show an eaves structure using a covering material 1 according to a first embodiment of the present invention. The covering material 1 is configured by integrating a main body 2 having a plurality of drainage holes 211 through which rainwater is guided to the back side, and a band-shaped surface body 3 having a plurality of protrusions 31 protruding to the front side, as shown enlarged in Figures 1(b) and (c), in a superimposed manner, and is attached at an angle so as to cover the open upper part of the eaves gutter 4.
This cover material 1 is configured so that the protrusion 31 of the band-shaped surface body 3 is positioned on the above-water side of the drainage hole 211 of the main body 2, and the above-water side protrusion 31 prevents the progression of coniferous trees and small dead leaves, which are prone to clogging the gutter, due to the roof slope, and rainwater that has been removed can be guided into the eaves gutter 4 through the below-water side drainage hole 211 and drained.

The band-shaped surface body 3 used in this Example 1 is a rectangular metal or synthetic resin surface material that is short in the flow direction and long in the left-right direction, and the protrusions 31, which are approximately triangular upright pieces that protrude from the front side, are provided in two rows in the flow direction and in multiple stages in the left-right direction, and are arranged in a phased manner in the flow direction.
In detail, this protrusion 31 is cut in a L-shape and its inner portion is folded up from the back side to the front side, thereby forming an approximately triangular through hole 310 and forming the protrusion 31 which is an approximately triangular upright piece.
More specifically, the upright pieces forming the protrusion 31 are vertically oriented along the flow direction, and the cut pieces are symmetrical with respect to a line perpendicular to the flow direction, as can be seen from the dashed double-dashed line in FIG. 1(c).

A drainage hole 211 is formed in the flat panel portion 21 of the main body 2 of this covering material 1, and this drainage hole 211 consists of a guide portion 211a that slopes continuously from the front side to the back side and an opening 211b formed on the belowwater side of the guide portion 211a, and is provided in multiple locations in both the flow direction and the width direction, and is arranged in a phase pattern in the flow direction.Furthermore, the panel portion 21 of this main body 2 is L-shaped when viewed from the side, with two planes connected: a surface that is arranged above the water and slopes downward in the flow direction, and a surface that is arranged below the water and slopes upward toward the belowwater end, and the front side of the connected part forms a valley-shaped bottom, and a eaves-side drainage groove 212 with a concave cross-section is formed in the valley-shaped bottom.

The main body 2 is also provided with mounting parts 23, 22 at its above-water end and below-water end, respectively, as a structure for covering the open upper part of the eaves gutter 4.
The above-water side mounting portion 23 formed at the above-water end of the main body 2 is the portion to which the above-water end 231, which is the raised tip of the contact surface 232 that is aligned with the horizontal piece of the eaves arabesque 5A fixed to the exterior base (roof board) 6A, is fastened with a screw (screw 2b), and is the portion where the panel portion 21 is extended toward the above-water side.
In addition, the underwater mounting portion 22 formed at the underwater end of the main body 2 is a U-shaped engagement portion whose upper surface portion forms an upwardly sloping surface toward the eaves (eaves edge), and engages with the upper end 421 of the side surface 42 on the eaves edge side of the eaves gutter 4.

In this embodiment 1, the eaves gutter 4, whose upper surface is covered by the main body 2, is a through material having an internal space (drainage section) for draining rainwater, etc., and is formed in an approximately groove-like cross section consisting of a bottom surface 41 and two side surfaces 42, 43, and the side surface 42 on the eaves side is formed in a stepped shape consisting of three inclined surfaces and two horizontal surfaces, and its upper end 421 is an engagement receiving portion that engages in a clamping manner with the U-shaped engagement portion (underwater side mounting portion 22) of the cover material 1.
The side surface 43 on the building side is a generally vertical surface with a support receiving portion 431 formed at its lower end, and the above-water end 231 is supported by a wall exterior material 8A fixed to the outside of a vertically extending wall material 7B. In the drawing, 4b is a fixture for fixing the side surface 43 to the wall material 7B, and 8b is a fixture for fixing the side surface 43 together with the wall exterior material 8A.

The eaves arabesque 5A that secures the above-water mounting part 23 of the main body 2 is configured with a mounting part that is attached in an engaging manner to the eaves part of the exterior base (roof board) 6A, a fixed part that secures the above-water mounting part 23 of the main body 2, a holding part that holds the eaves side molding part of the horizontally laid exterior material 9A that is furthest below the water, and a locking part that locks the below-water end of the backup material 9D arranged on the back side of that, and is fixed integrally to the exterior base (roof board) 6A by the fixing device 5b, so that the main body 2 that is fixed to the eaves arabesque 5A is also firmly attached.

The horizontal exterior material 9A is typically formed using known metal materials such as surface decorative steel sheets, laminated steel sheets, plated steel sheets, stainless steel sheets, aluminum alloy sheets, titanium alloy sheets, copper sheets, etc., with a thickness of approximately 0.4 to 1.6 mm, and a backing material 9b is attached to the back side, and a backup material 9D is further disposed on the back side. The overlapping portions of the backup materials 9D, 9D adjacent to each other in the flow direction and the edge of the horizontal exterior material 9A are fixed to the H-shaped structure 7A with long-legged fixtures 9c.

The building in this construction example has a sheathing board 6A made of a wood-wool cement board or the like laid on an H-shaped structure 7A extending in the inclined direction, the backup material 9D is placed on the top side of the sheathing board 6A via a waterproof sheet 6b, and the horizontal exterior material 9A is attached to the top side of that.

Furthermore, a vertically extending wall material 7B is arranged at the eaves end of the H-shaped structure 7A, and a wall exterior material 8A is fixed to the outside of the wall material 7B, and the lower end (engaged portion 431) of the side surface 43 of the eaves gutter 4 facing the building is supported by an L-shaped support portion 82 formed at the lower end of the vertical surface portion 81. A ceiling material 8B is arranged at the lower end of the wall material 7B.

The eaves structure using the covering material 1 of Example 1 of the present invention having such a configuration has drainage holes 211 that direct rainwater to the eaves gutter 4 on the back side, and a protrusion 31 to the front side on the above-water side of the drainage holes 211, so that the progression of coniferous trees and small dead leaves that tend to clog the gutter due to the roof slope can be prevented by the protrusion 31 on the above-water side, and rainwater that has been removed can be guided from the drainage holes 211 on the below-water side to the eaves gutter 4 and drained. Rainwater can also be guided to the eaves gutter 4 from the through-holes 310.
In addition, since the covering material 1 of this Example 1 has a structure in which a band-shaped surface body 3 having a protrusion 31 formed thereon is fixed (integrated) to the panel portion 21 of the main body 2, the main body 2 may be an existing covering material, and therefore the covering material 1 can be applied to the renovation of an existing eaves structure.
Although not shown in the figure, the band-shaped surface body 3 used in the cover material 1 may be integrally attached to the face plate portion of any one or more stages of the horizontally laid exterior material 9A, and in this embodiment, the function of the aforementioned protrusion 31 can be achieved for multiple stages or more.

Figure 3 shows an eaves structure using the cover material 1II of Example 2. The cover material 1II is configured by integrating a main body 2' having a plurality of drainage holes 211 through which rainwater is guided to the back side, and a band-shaped surface body 3 having a plurality of protrusions 31, which were also used in Example 1, in a superimposed state.
The above-water side mounting portion 23' formed at the above-water end of the main body 2' is the same as the main body 2 in the above-mentioned Example 1, except that it is the part where the above-water end 231, which is the tip of the L-shaped contact surface 232' aligned with the horizontal and vertical pieces 51 of the eaves arabesque 5A, is fixed with a screw (screw 2b).Therefore, the same reference numerals are used in the drawings and the explanation is omitted.

The horizontal roofing exterior material 9A, exterior base (roof board) 6A, eaves arabesque 5A, H-shaped structure 7A, ceiling material 8B, etc. that form the exterior structure are the same as in the first embodiment, so the same reference numerals are used in the drawings and a description is omitted. However, the wall exterior material 8A' that is fixed to the outside of the wall material 7B has a long vertical surface portion 81'.

Therefore, the eaves structure using the covering material 1II of this Example 2 has the same effect as that of the above-mentioned Example 1. In addition, since the L-shaped contact surface 232' is a stepped (step) portion, the lower portion of the step is likely to become a damming portion for coniferous trees and small dead leaves that are prevented from moving in the flow direction by the protruding portion 31.
Although not shown, this is also the case in Example 2, where the band-shaped surface body 3 used in the cover material 1II may be integrally attached to the face plate portion of any one or more stages of the horizontal laying exterior material 9A, and in this embodiment, the function of the aforementioned protrusion 31 can be achieved double or triple or more times.

Figure 4 (a) shows an eaves structure using a covering material 1III according to a third embodiment of the present invention. Covering material 1III is the same as in the first embodiment except that it is configured such that a main body 2 having a plurality of drainage holes 211 for directing rainwater to the back side and a band-shaped surface body 3' having a plurality of protrusions 31a, 31b protruding to the front side, as shown enlarged in Figure 4 (b), are integrated in a superimposed manner. Therefore, the same reference numerals are used in the drawings and the description is omitted.

The strip-shaped surface body 3' used in this Example 3 is the same as the strip-shaped surface material 3 in Example 1 in that it is a rectangular metal or synthetic resin surface material that is short in the flow direction and long in the left-right direction, but two types of protrusions 32a, 32b, which are approximately triangular upright pieces protruding toward the front side, are separated into front and rear rows and arranged in a phase relationship in the flow direction.
In detail, the two types of protrusions 32a, 32b are cut in a L-shape and the inner portion is folded up from the back side to the front side, thereby forming an approximately triangular through hole 320 and forming the protrusions 32a, 32b which are approximately triangular upright pieces.
More specifically, the two types of protrusions 32a, 32b are both inclined in the direction of flow. Since these protrusions 32a, 32b are inclined in both the length direction of the eaves gutter 4 and the direction of flow, they face the wind blowing against them, and are more effective at blocking coniferous trees and small dead leaves that tend to clog the gutter than the protrusion 31 in the first embodiment.

Therefore, the eaves structure using the covering material 1III of this Example 3 has the same effect as that of Example 1, that is, since the drainage hole 211 that guides rainwater to the eaves gutter 4 on the back side and the protrusions 32a, 32b toward the front side are provided on the above-water side of the drainage hole 211, the progress of coniferous trees and small dead leaves that are likely to clog the gutter due to the roof slope can be prevented by the protrusions 32a, 32b on the above-water side, and rainwater other than these can be guided from the below-water side drainage hole 211 to the eaves gutter 4 and drained. Rainwater can also be guided to the eaves gutter 4 from the through hole 320.
Although not shown, this is also the case in Example 3, where the band-shaped surface body 3' used in the cover material 1III may be integrally attached to the face plate portion of any one or more stages of the horizontal laying exterior material 9A, and in this embodiment, the functions of the aforementioned protrusions 32a, 32b can be achieved double or triple or more times.

Figure 5 shows an eaves structure using the cover material 1IV of Example 4. The cover material 1IV is the same as in Examples 2 and 3 except that the main body 2', in which the L-shaped contact surface 232' used in Example 2 forms a stepped (stepped) portion, and the band-shaped surface body 3', which has multiple protrusions 32a, 32b used in Example 3, are integrated in a superimposed manner. Therefore, the same reference numerals are used in the drawings and the description is omitted.

Therefore, the eaves structure using the cover material 1IV of this Example 4 has the same effect as the above-mentioned Example 2 and Example 3.
Although not shown, the band-shaped surface body 3' used in the cover material 1IV may be attached integrally to the face plate portion of any one or more stages of the horizontally laid exterior material 9A, as in this Example 4. In this form, the upper and lower stages of the step face the wind blown by the aforementioned protrusions 32a, 32b, respectively, thereby providing a high blocking effect.

1, 1II, 1III, 1IV Cover material 2, 2' Main body 21 Face plate portion 211 Drain hole 211a Guide portion 211b Opening 212 Eaves side drain groove 22 Below water side mounting portion 221 Top surface portion 23 Above water side mounting portion 231 Above water end 232, 232' Contact surface 3, 3' Belt-shaped surface material 31, 32a, 32b Protruding portion 310, 320 Through hole 4 Eaves gutter 41 Bottom surface 42 (Eaves side) Side surface 421 Top end (engagement receiving portion)
43 (Building side) Side 5A Eaves arabesque 6A Exterior base (slat board)
7A H frame 7B Wall material

Claims (2)

A cover material to be placed above an eaves gutter,
A cover material characterized in that it is provided with a drainage hole for directing rainwater to the back side and a protrusion toward the front side on the water-surface side of the drainage hole. An eaves structure in which a covering material is placed above the eaves gutter at the eaves of the roof surface,
The cover material has a drainage hole in the surface plate portion through which rainwater is guided to the back side,
An eaves structure characterized in that a protrusion toward the surface is provided on the above-water side of the drainage hole, said covering material and/or roof surface.

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