JP2019138112A - Eaves edge structure and building - Google Patents

Abstract

To prevent rain water overflowing from an eaves gutter covered mainly with a decorative material from, for example, flowing into an eaves soffit material.SOLUTION: This invention relates to an eaves edge structure in which a support member is provided in a building body, an eaves gutter 3 is attached to an upper part of the support member, an eaves soffit material 62 is attached to a lower part of the support member, and a decorative material 63 is attached to the support member using a decorative material support metal fitting 59. The eaves gutter 3 includes an overflow portion (such as a flange portion 11) in a rising portion 4 formed at an eaves edge side. The decorative material 63 is provided with a throating portion capable of draining rain water 15 overflowing from the overflow portion and a ventilating and throating portion capable of ventilating and draining.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an eaves structure and a building.

  Some buildings, such as detached houses, have an eaves structure in which rain gutters (such as eaves) are provided on the top of the building body.

  Some of the eaves have cosmetics attached to the outside. In many cases, the decorative material has high openness in which the upper side and the lower side of the eaves are released to the atmosphere (Patent Documents 1 to 3). In addition, there are cosmetic materials that cover the eaves in a highly airtight state (Patent Document 4).

JP-A-55-160245 JP 61-191767 A JP-A-7-331824 Japanese Utility Model Publication No. 3-24526

  However, it is necessary to take measures when the rainwater overflows due to drainage trouble such as clogging. In particular, when the eaves bowl is covered with a cosmetic material as in Patent Document 4 so as to have a high sealing property, rainwater overflowing from the eaves bowl can be drained to the outside of the cosmetic material without hindrance. There is a need.

  By the way, in Patent Document 4, ventilation openings were arranged in parallel with the eaves ceiling material on the eaves side of the eaves ceiling material provided at the lower part of the support member for attaching the eaves to the building body. When rainwater overflowed the eaves due to a drainage problem, etc., the rainwater overflowed from the eaves was likely to flow outside the eaves and into the eaves ceiling material located directly under the eaves. For this reason, it is structurally necessary to direct rainwater overflowing from the eaves to the vents located adjacent to the eaves side of the eaves ceiling material and drain it from the vents. was difficult.

  Therefore, the present invention mainly aims to solve the above-described problems.

In order to solve the above-described problems, the present invention provides a support member on a building main body, an eave ridge is attached to an upper part of the support member, an eaves ceiling material is attached to a lower part of the support member, and the support member In an eaves structure in which a decorative material is attached using a decorative material support bracket, the eaves ridge has an overflow portion formed on the eaves side, and the rainwater overflowed from the overflow portion is externally applied to the decorative material. It is characterized by the provision of a drainage section that can be drained into the water.
In the present invention, the building main body is provided with a support member extending in a direction perpendicular to the wall surface of the building main body, an eave ridge is attached to the upper part of the support member, and an eaves ceiling material is attached to the lower part of the support member. In the eaves structure in which a decorative material is attached to the distal end portion of the support member, the eave ridge has an overflow portion at an upright portion formed on the eaves side, and is lower than the eave ridge of the decorative material. A ventilation drainage section capable of draining rainwater overflowing from the ventilation and the overflow section to the outside is provided at a position higher than the ceiling material.

  According to the present invention, the rainwater overflowing from the eaves covered with the decorative material is drained to the outside from the drainage portion or the ventilation drainage portion provided in the decorative material according to the above configuration, so that the rainwater is discharged. For example, it can prevent flowing into the eaves ceiling material.

It is the expanded longitudinal cross-sectional view which shows the upper part of the building provided with the eaves structure concerning this Embodiment. It is a side view which shows a mode that the eaves part of an eaves cup is positioned. FIG. 2 shows a heel-forming arm and a decorative material support bracket, (a) is a side view, (b) is a view of (a) from the left side (front view), and (c) is a decorative material support bracket from the right side. The seen figure (rear view) and (d) are top views. The decorative material support metal fitting is shown, (a) is a side view, (b) is a view (front view) of (a) seen from the left side. It is a whole perspective view of the auxiliary tool for positioning. FIG. 2 is a ventilation route diagram similar to FIG. 1.

Hereinafter, the present embodiment will be described in detail with reference to the drawings.
1 to 6 are for explaining this embodiment.

  <Configuration> The configuration will be described below.

  FIG. 1 is an enlarged cross-sectional view showing an upper portion of a building 1 such as a detached house. A building 1 such as a detached house has an eaves 3 at the position of the lower edge (the edge on the water side) of the roof 2 (outside the building body). The eaves bowl 3 includes an eaves bowl body 6 having raised portions 4 and 5 on the eaves side and the eaves side, respectively.

  Here, the eaves bowl 3 is provided separately from the roof 2 (roof material) at the position of the end of the roof 2 (roof material). The eaves cup 3 is a metal or resin member having a substantially U shape in a side view. Alternatively, the eaves bowl 3 is a long member (drainage member) mainly composed of a groove-shaped portion opened upward. In this embodiment, the eaves eaves 3 has a square shape in which the eaves eaves body 6 integrally has a bottom surface 7, an eaves-up part 4 on the eaves side, and an erect part 5 on the eaves side. The eaves main body 6 has a smooth surface and a uniform thickness. The eaves bowl 3 has a shape that can be formed by bending a single metal plate, for example.

  The eaves bowl 3 is provided with an opening, and the opening is formed on the bottom surface 7 of the eaves bowl body 6. The eaves bowl 3 is connected to the vertical gutter through the outlet. For this purpose, the eaves bowl 3 is installed along the lower edge of the roof 2 so as to incline downward toward the outlet.

  The eaves side is the side away from the building 1. Further, the eaves side is a side close to the building 1. The upright portions 4 and 5 are portions extending substantially upward from both side portions of the bottom surface 7, and are side walls forming the side surfaces of the eaves bowl 3. The eaves-side raised portion 4 and the eaves-side raised portion 5 are formed to have a substantially uniform height over the entire length of the eaves rod 3 in the longitudinal direction.

  Hereinafter, the eaves 3 will be described.

(A) The elevating part 4 on the eaves side is made lower than the erecting part 5 on the eaves side to make it an overflow side erection.
And the collar part 11 extended to the eaves end side is extended from the top part of the standing upper part 4 by the eaves end side. The eaves part 11 is preferably arranged at a position away from the eaves ceiling material 62 of the building 1.

  Here, the eaves portion 4 on the eaves side is made lower than the eaves portion 5 on the eaves side when the rainwater 15 overflows from the eaves main body 6 due to a drainage trouble or the like. This is because the upper part 4 is positively overflowed and the upper part 5 on the eaves side is not overflowed (as much as possible). Thus, the eaves-side uprights 4 need to be sufficiently lower than the eaves-side uprights 5 to ensure that overflowing rainwater 15 overflows only from the eaves-side uprights 4.

  The upright portions 4 and 5 of the eaves bowl 3 are generally side walls for preventing the rainwater 15 from overflowing. For this reason, such a usage that actively overflows the overflowing rainwater 15 from the upright portion 4 on the eaves side (in the case of heavy rain or drainage trouble) is different from the original usage of the upright portions 4 and 5. Is.

  The eaves bowl 3 first collects rainwater 15 on the roof 2 and guides it to the vertical fence, and in order to balance the function in case of drainage trouble that overflows when the rainwater 15 overflows, The upright portion 4 on the side is set to a height (functionally necessary height) that can secure a flow rate substantially equal to that of a general eaves. Next, the upright portion 5 on the eaves side is set to be higher than the upright portion 4 on the eaves side. As a result, the eaves-side raised portion 4 becomes the overflow-side raised portion, and the eaves-side raised portion 5 becomes the non-overflow-side raised portion.

  If necessary, the base of the eaves 3 is made wider than a general eaves so that the upright part 4 on the eaves side is more secure than the general eaves while ensuring the required height. The overall shape balance may be adjusted so that it can be lowered. As a result, the eaves bowl 3 can be attached to the roof 2 in an attractive manner. In this case, the height of the upright portion 5 on the eaves side is set to be optimal according to the height of the upright portion 4 on the eaves side.

  In order to ensure that the rainwater 15 overflows from the eaves 4 on the eaves side, it is most important to optimally set the height difference between the eaves 4 on the eaves side and the eaves 5 on the eaves side. Become. This height difference can be optimally set based on, for example, nationwide rainfall data, rainfall data of the area where the eaves 3 is installed, and the like.

  Specifically, the height difference needs to be secured at least about 10 mm. In order to give more certainty, it is preferable to make the height difference larger, for example, about 20 mm to 40 mm. At this time, it is preferable in terms of balance that the eaves portion 4 on the eaves side is, for example, approximately 60% to 70% higher than the erect portion 5 on the eaves side.

  The eaves portion 11 serves as a water guide plate that smoothly guides the rainwater 15 overflowing from the eaves portion 4 on the eaves side to the eaves side position away from the eaves portion 4 on the eaves side and the eaves ceiling material 62 of the building 1. . The eaves portion 11 is integrally provided on the eaves part 4 on the eaves side (for example, by bending). An overflow portion is constituted by the eaves portion 4 on the eaves side and the flange portion 11. The eaves part 11 is installed at a position separated from the eaves ceiling material 62 (the end part of the eaves side) at least toward the eaves side to the extent that the overflowing rainwater 15 does not reach the eaves ceiling material 62.

  Specifically, the eaves part 11 is formed above the eaves ceiling material 62 and the eaves forming arm 56 of the building 1 and the eaves ceiling material 62 and the eaves formation (within a range in which the tip portion does not hit the decorative material 63 described later). It arrange | positions so that it may be located in the eaves side rather than the front-end | tip part of the arm 56. FIG. The eaves ceiling material 62 and the eaves forming arm 56 will be described later.

  At this time, the eaves part 11 can be substantially horizontal, but it is preferable that the eaves part 11 is provided with a gradient 18 that is inclined downward toward the eaves side. The gradient 18 of the collar portion 11 may be set to the same level as a general drainage gradient. The eaves part 11 is formed in a substantially uniform width over the entire area of the eaves eaves 3 in the longitudinal direction. The eaves portion 11 may be, for example, a relatively wide one having a width dimension of about half or more of the height of the upright portion 4 on the eaves side. Or the collar part 11 is good also as what has a width dimension substantially the same as the height of the upright part 4 by the eaves side, for example.

  (B) You may provide the water return part 21 extended in the eaves side at the top part of the standing upper part 5 at the eaves side.

  Here, the water return part 21 is a restriction part (overflow restriction part) for restricting the rainwater 15 from overflowing from the standing upper part 5 on the eaves side. The water return portion 21 is integrally provided on the upright portion 5 on the eaves side (for example, by bending). The water return portion 21 is extended toward the eaves side so as to be substantially horizontal or slightly up or down, and covers a part of the eaves side in the eaves main body 6. The water return portion 21 is formed to have a substantially uniform width over the entire area of the eaves bowl 3 in the longitudinal direction.

  A thick waterproof material 25 that can be elastically deformed, such as a waterproof tape, can be attached to the upper surface of the water return portion 21 at the time of manufacture or construction, if necessary. When the waterproof material 25 is attached, it is preferable that the water return portion 21 has a width that is substantially the same as or slightly wider than the waterproof material 25 and is at an angle that is substantially horizontal or parallel to the roof 2. By installing the roof 2 via the waterproof material 25, the water return portion 21 becomes a press holding portion (press holding surface) or the like held in a pressed state (from the upper side) by the roof 2.

  (C) You may provide the draining part 31 in the edge part of the eaves side of the collar part 11. FIG.

  Here, the draining part 31 is a flow-down guide part for draining the rainwater 15 guided to the eaves side along the eaves part 11 from the eaves part 11 and flowing down toward the target position. The draining portion 31 is provided integrally with the flange portion 11 (for example, by bending). The draining portion 31 can be a bent edge (downward edge portion) that extends substantially downward from the edge portion of the eaves side of the flange portion 11. The draining portion 31 is formed to have a substantially uniform width over the entire area of the eaves bowl 3 in the longitudinal direction.

  (D) The collar part 11 may have the positioning part 41 with respect to an up-down direction.

  Here, the positioning part 41 positions the collar part 11 in the vertical direction, and installs the collar part 11 so as to be in a substantially horizontal state, an inclined state having a required gradient 18 or the like. belongs to. In this embodiment, the draining portion 31 provided on the eaves side of the collar portion 11 is used as the positioning portion 41.

  For positioning of the collar part 11 by the draining part 31, a positioning auxiliary tool 45 such as a fixed fin member shown in FIG. 2 (FIG. 5) can be used. The auxiliary tool 45 can include, for example, an auxiliary tool main body 45a and a position defining portion 45b provided integrally with the auxiliary tool main body 45a.

  The auxiliary tool main body 45a is, for example, a two-fold shape that can be fitted to the back of the notch 59a provided on the eaves fitting such as the decorative material support metal 59 described later, and the periphery of the back of the notch 59a. For example, a contact surface that can be fixed to contact with the surface. For example, the position defining portion 45b may have a C-shape that is substantially laterally (inward) as viewed from the side and that receives (accommodates and holds) the draining portion 31 (positioning portion 41) and defines the position in the vertical direction. it can. The positioning part 41 provided in the collar part 11 may be used not only for positioning in the vertical direction but also for positioning in the eaves direction or in the longitudinal direction.

  Although the above structure is preferable, the positioning part 41 may be provided exclusively at a position different from the draining part 31. The positioning auxiliary tool 45 may be used or may be configured not to be used. Alternatively, the positioning auxiliary tool 45 may have a shape different from that described above.

  Hereinafter, the building 1 having the eaves 3 will be described with reference to FIG.

  The building 1 can be a general building such as a detached house, but may be a unit building, for example. The unit building is configured such that the building 1 can be built in a short period of time by transporting the building unit 51 manufactured in advance in the factory to the construction site and assembling it at the construction site. There are two types of unit buildings: steel and wooden. In this embodiment, a steel-based unit building is used. However, the building 1 is not limited to a (steel-based) unit building.

  And in the case of a steel-based unit building, the building unit 51 connects the upper ends of the four columns in a rectangular shape with the four ceiling beams 52, and four spaces between the lower ends of the four columns. It has a unit frame with a box ramen structure that is connected in a rectangular shape with floor beams. The unit frame is attached with an outer wall material 53 constituting a wall surface.

  In the building 1, the upper part of the ceiling beam 52 constituting the building unit 51 located on the top floor of the building body (constructed by the building unit 51) is connected to the upper part of the ceiling beam 52 via the mounting frame 55, such as a folded roof with unevenness. A roof 2 using a roofing material is installed. The roof 2 is attached so as to protrude below the building unit 51 from the building unit 51 in a state where the roof 2 is inclined to a downward slope.

  As a supporting member so as to project sideways (that is, in a direction substantially perpendicular to the outer wall material 53) to the upper part of the building body, that is, the side part of the ceiling beam 52 which is the underwater side of the building unit 51 on the top floor. A heel forming arm 56 is attached. The eaves forming arms 56 are cantilever beams longer than the width dimension of the eaves eaves main body 6, and a plurality of eaves forming arms 56 are attached to the longitudinal direction of the eaves eaves 3 with a predetermined interval. A mounting plate 56a for the building main body (ceiling beam 52) is integrally provided at one end of the eaves forming arm 56 on the building unit 51 side.

  Then, the eaves rod 3 described above is installed on the upper portion of the rod forming arm 56 using the rod receiving bracket 57 (see FIG. 2). The hook receiving bracket 57 has a substantially U shape capable of accommodating the lower part (the periphery of the bottom surface 7) of the eaves bowl 3, and is fixed to the upper part of the hook forming arm 56 with a fixing member 58 such as a screw (vertically). The

  The eaves hook 3 is held in a state where the lower part thereof is fitted into the inner side of the hook receiving bracket 57 from above. And, in this state, by locking the positioning portion 41 using the auxiliary tool 45 described above, the decorative material support fitting 59 extending upward attached to the end portion of the eaves side of the eaves forming arm 56, Positioning of the collar part 11 is performed.

  Here, as shown in FIGS. 3 and 4, the decorative material support fitting 59 includes a lower portion 591 that extends substantially in the vertical direction, and an intermediate portion 592 that is bent laterally from the upper end portion of the lower portion 591 and extends substantially in the eaves direction. The intermediate portion 592 is a metal fitting having a substantially S-shaped or crank-shaped surface in a side view having an upper portion 593 extending substantially upward from the end portion on the eaves side. The lower part 591 of the decorative material support fitting 59 is fixed to the tip of the heel forming arm 56. A decorative material 63 (described later) is abutted and fixed to the outer edge and upper edge of the upper portion 593 of the decorative material support fitting 59. The upper part 593 of the decorative material support fitting 59 is formed in an upwardly expanding shape, and the outer edge and the upper edge are formed in the same shape as the inner surface of the decorative material 63. On the outer edge and upper edge of the upper portion 593 of the decorative material support fitting 59, there are mounting flange portions 594 that project in the side (perpendicular direction) or obliquely upward in a shape that matches the shape of the decorative material 63. You may make it install. In addition, it is not always necessary to use the decorative material support fitting 59 for attaching the decorative material 63, and it is structurally possible to use another metal fitting or the like. It is most suitable for mounting 63 and the like.

The intermediate portion 592 extending in the direction of the eaves of the decorative material support fitting 59 has an upper edge that can mount and hold the eaves 11 extending from the upright portion 4 on the eaves side of the eaves 3 to the eaves. Are formed to have the same height and the same gradient 18. By mounting and holding on the upper edge portion of the intermediate portion 592 of the decorative material support fitting 59, the collar portion 11 is supported by a support portion (support surface) supported directly or indirectly (from the lower side) by the building 1. Become. In addition, the upper edge portion of the intermediate portion 592 of the decorative material support fitting 59 serves as a support portion that supports the collar portion 11.
Further, the intermediate portion 592 of the decorative material support fitting 59 is formed at a position where the lower edge portion is higher than the upper edge portion of the heel forming arm 56. And the above-mentioned notch part 59a can prevent interference with the front-end | tip part of the collar part 11 in the corner part of the upper edge part of the intermediate part 592 part of the decorative material support metal fitting 59, and the inner edge part of the upper part 593. It is formed as follows. This notch 59a is mainly composed of a laterally cut portion that receives the tip of the flange 11 from below. This horizontally oriented cut-out portion has a height that allows the positioning portion 41 (drainage portion 31) and the position defining portion 45b of the auxiliary tool 45 to enter. At the back of the horizontally oriented cut-out portion is formed a downward cut-out portion 59a1 that can be accommodated and held in a state where the positioning portion 41 (drainage portion 31) and the position defining portion 45b of the auxiliary tool 45 are dropped. . The lateral cut-out portion constituting the cutout portion 59a and the downward cut-out portion 59a1 are connected in a bent shape.

  After positioning by inserting and locking the collar portion 11 and the positioning portion 41 into the notch portion 59a, as shown in FIG. 1, using a fixing member 60 such as a screw, the decorative material support bracket 59 and the draining portion 31 are You may fix from the outside to the eaves direction.

  Thereby, the eaves bowl 3 is reliably installed in the position (position just under the edge of the underwater side of the roof 2) which can receive the rainwater 15 which flowed down from the roof 2. FIG. At this time, the upright side 4 on the eaves side is located outside the underwater edge of the roof 2, and the upright side 5 on the eaves side is located inside the underwater edge of the roof 2. Is done.

  At this time, the eaves wall 3 has a waterproof material 25 on the upper surface of the water return portion 21 provided on the top of the erecting portion 5 on the eaves side on the lower surface in the vicinity of the lower edge of the roof 2 such as a folded roof. Waterproofing is performed by abutting against it.

  An eaves ceiling material 62 is attached to the lower surface of the eaves forming arm 56 along the eaves eaves 3. The eaves ceiling material 62 is, for example, a fireproof material made of rock wool or the like. The eaves ceiling material 62 has a width that is narrower than the overhanging length of the ridge forming arm 56, and is installed at a substantially central position of the ridge forming arm 56.

  Furthermore, the decorative material 63 may be attached so as to surround the eaves wall 3 from the outside across the upper surface of the roof 2 near the edge on the underwater side and the eaves ceiling material 62. The decorative material 63 is provided separately from the roof 2 (roof material) at the end position of the roof 2 (roof material). This decorative material 63 can be divided into a plurality of parts in the vertical direction. In this embodiment, the decorative material 63 is divided into an upper piece 64, an intermediate piece 65, and a lower piece 66.

  Among these, the upper piece 64 is supported and fixed to the upper end edge of the upper portion 593 of the decorative material support fitting 59 and is connected to the roof 2 by a cover 67 for covering the eaves 3 from above. The intermediate piece 65 is installed between the upper piece 64 and the lower piece 66 and is mainly supported and fixed to the outer edge of the upper portion 593 of the decorative material support fitting 59.

  The lower piece 66 is attached between the eaves side end portion (tip portion) of the eaves forming arm 56 and the eaves ceiling material 62. The lower piece 66 has a step shape when viewed from the side, and an upper portion thereof serves as a contact fixing portion 66 a that can be contacted and fixed to the distal end portion of the flange forming arm 56. The lower piece 66 has a middle portion protruding from the abutment fixing portion 66a toward the eave tip side, and a spacing portion 66b that wraps downward toward the eaves ceiling material 62 in a state of being separated from the distal end portion and the lower portion of the hook forming arm 56, etc. It has become.

  The spacing portion 66b extends upward so that the lower portion thereof extends downward to a position that is the same as or lower than the lower surface of the eaves ceiling material 62 and then rises to a position that is substantially the middle height of the eaves ceiling material 62. It is bent, and further, it is bent substantially horizontally toward the eaves side so as to be connected to the end of the eaves ceiling material 62, and has a substantially downward detoured drainage portion 66c.

  At least the lower part of the intermediate piece 65 and the upper part (the contact fixing part 66a thereof) of the lower piece 66 are at positions below the lower edge part of the intermediate part 592 of the decorative material support bracket 59 in the vertical direction. It is provided so as to partially overlap. Between the overlapping portions, a ventilation portion 68 is provided for ventilating the interior of the decorative material 63 and the back of the hut. The ventilation unit 68 may be a ventilation slit formed by slightly separating the lower part of the intermediate piece 65 and the upper part of the lower piece 66. The ventilation portion 68 is located on the eaves side of the front end portion (upper half portion) of the eaves forming arm 56 and lower than the raised portion 4 (the eave portion 11 on the top) of the eaves side 3. The eaves ceiling material 62 is provided at a higher position (or a position substantially the same as or slightly lower than the bottom surface 7 of the eaves main body 6).

  The ventilation section 68 has a flow guide section 69 (drainage section) that guides the flow (drainage) of the rainwater 15 that has overflowed from the upright portion 4 on the eaves side, or water for preventing rainwater from entering from the outside. A return part can be provided. The ventilation part 68 and the flow guide part 69 constitute a ventilation draining part.

  As the flow-down guide portion 69, the intermediate piece 65 has a substantially horizontal or slight downward slope toward the eaves side (with a length that does not reach the abutment fixing portion 66 a of the lower piece 66). An extending laterally extending portion 69a is provided. Further, as the flow down guide part 69, a position slightly lower than the upper end part of the contact fixing part 66a of the lower piece 66 on the upper side of the lateral extension part 69a has a substantially horizontal or slight downward slope toward the eaves side. A laterally extending portion 69b that has a length that does not reach the intermediate piece 65 and that extends laterally is provided. The laterally extending portion 69b and the laterally extending portion 69a are installed so as to partially overlap in the lateral direction and have an interval in the vertical direction.

  Further, the laterally extending portion 69b is provided with a pair of lower extending portions 69c and 69d extending downward from the front end portion and the intermediate portion, respectively. The lower extension 69c of the tip extends to a length that does not reach the lateral extension 69a and is located above the lateral extension 69a, and the lower extension 69d of the intermediate part extends laterally. It extends to the extent that it reaches the portion 69a or longer, and is located away from the eaves side of the laterally extending portion 69a.

  In addition, the upper end portion of the abutting and fixing portion 66a of the lower piece 66 is an upright extending portion 69e that prevents the overflowing rainwater 15 from entering the eaves ceiling material 62 side. The upper extending portion 69e extends upward until the position becomes higher than the upper portion of the heel forming arm 56. In this embodiment, the upper extension portion 69e is extended to the position of the lower edge portion of the intermediate portion 592 of the decorative material support fitting 59.

  Then, the laterally extending portion 69b and the eaves-end-side lower extending portion 69c are positioned above the laterally extending portion 69a with an interval therebetween, and the eaves-side-side lower extending portion 69d becomes the laterally extending portion 69a. On the other hand, the labyrinth-shaped flow-down guide part 69 is formed by being positioned at an eaves side.

  With respect to the ventilation part 68 and the flow guide part 69 of the decorative material 63, the edge part on the eaves side of the eaves part 11 of the eaves bowl 3 is connected to the eaves guide part 69 (the eaves tip side from the upper extension part 69e). The drainage portion 31 is bent downward toward the ventilation portion 68 (the lateral extension portion 69b). Thereby, the ventilation part 68 can be used also as the discharge port (ventilation water drain part) of the rainwater 15 which overflowed from the eaves bowl 3.

  In contrast to the configuration as described above, this embodiment has the following features.

  (1) The building body is provided with a supporting member (the heel-forming arm 56), the eaves basket 3 is attached to the upper part of the supporting member, the eaves ceiling material 62 is attached to the lower part of the supporting member, and the decorative material support bracket is attached to the supporting member. In contrast to the eaves structure to which the decorative material 63 is attached using 59, the eaves 3 is formed on the eaves side with an overflow part (a raised part 4 lower than the eaves part 5 on the eaves side, The decorative material 63 is provided with a draining portion (downflow guide portion 69) that can drain the rainwater 15 overflowed from the overflow portion to the outside.

  (2) The decorative material support fitting 59 may have a notch 59a that can accommodate and hold the overflow portion.

  (3) A fixing fin member (auxiliary tool 45) capable of positioning and fixing the distal end portion (positioning portion 41) of the overflow portion may be interposed in the notch portion 59a.

  (4) The building body (building unit 51 or the like) is provided with a supporting member (the ridge forming arm 56) extending in a direction orthogonal to the wall surface (outer wall material 53) of the building body, and the eaves bowl 3 is attached to the upper part of the supporting member. In contrast to the eaves end structure in which the eaves ceiling material 62 is attached to the lower part of the support member and the decorative material 63 is attached to the front end of the support member using the decorative material support fitting 59, the eaves rod 3 is formed on the eave end side. The raised portion 4 has an overflow portion (the raised portion 4 lower than the raised portion 5 on the eaves side, the eaves portion 11, etc.), which is lower than the eave wall 3 of the decorative material 63 and lower than the eave ceiling material 62. A ventilation drainage section (ventilation section 68 and flow-down guide section 69) that can drain the rainwater 15 overflowed from the ventilation and overflow section to the outside is provided at a high position.

  Here, the position of the decorative material 63 that is lower than the eaves bowl 3 and higher than the eaves ceiling material 62 is an intermediate height between the eaves bowl 3 and the eaves ceiling material 62.

  (5) At this time, the ventilating drain (such as ventilator 68) may be provided at a position on the distal end side of the support member (the heel forming arm 56).

  (6) In the drainage section (ventilation section 68, etc.), the overflow of the rain water 15 overflowed from the overflow section of the eaves bowl 3 (the upright part 4 lower than the upright part 5 on the eaves side, the eaves part 11, etc.) It is also possible to provide a flow guide part 69 for guiding the above.

  (7) The decorative material 63 may be provided with a ventilation port 71 that is different from the ventilation drainage section (such as the ventilation section 68 and the flow guide section 69).

  Here, another ventilation port 71 can be provided between the upper piece 64 of the decorative material 63 and the intermediate piece 65, for example. For example, the eaves side end 64a of the upper piece 64 and the upper end 65a of the intermediate piece 65 are provided so as to partially overlap in the vertical direction, and a ventilation slit is provided between the overlapping portions to provide another ventilation. A mouth 71 can be provided. According to the above, another ventilation port 71 is installed at a position higher than the eaves wall 3 on the eaves side than the eaves wall 3.

  At this time, the peripheral portion of the end portion 64 a on the eaves side of the upper piece 64 is formed as an inclined portion having a downward slope and extending toward the eaves side until it exceeds the upper end portion 65 a of the intermediate piece 65. An end 64a on the eaves side of the upper piece 64 may be provided with a draining portion that bends downward. In addition, the upper end portion 65a of the intermediate piece 65 is an inclined portion that is positioned below the eaves side of the upper piece 64 with a gap and that extends upward toward the eaves side with an upward slope. Furthermore, a substantially L-shaped enclosing portion 64b that surrounds the inclined portion in a state of being separated from the inclined portion of the upper end portion 65a of the intermediate piece 65 on the lower surface side of the inclined portion on the eaves side of the upper piece 64, etc. It is provided (substantially perpendicular to the inclined portion) so that the ventilation slit has a labyrinth shape.

  Another ventilation port 71 is held by a notch 59 b provided in the decorative material support fitting 59. The upper end portion 65a of the intermediate piece 65 is fixed to the decorative material support bracket 59 from above substantially by a fixing member 72 such as a screw.

  FIG. 6 is a diagram showing a ventilation path. First, in a ventilation drainage section (such as the ventilation section 68), air that has entered the interior of the decorative material 63 from the ventilation drainage section passes under the eaves bowl 3, It is passed to the lower side of the roof 2 (the back of the hut). In addition, when the roof 2 is a folded plate roof having irregularities, the air on the upper side of the roof 2 is passed from the front end of the roof 2 to the lower side of the roof 2.

  In another ventilation port 71, the air that has entered the interior of the decorative material 63 from the other ventilation port 71 passes through the upper side of the eaves wall 3 and is passed to the lower side (the back of the hut) of the roof 2.

  (8) The building 1 described above may have the eaves-end structure described above.

  <Operation> The operation of this embodiment will be described below.

  The rainwater 15 that has fallen on the roof 2 flows downward along the roof 2 and is collected in the eaves 3. The rainwater 15 collected in the eaves basket 3 is normally led to a vertical gutter from a drop provided in the eaves bowl 3 and drained.

  However, for example, when a drainage trouble occurs due to clogging of the downside of the eaves or the eaves 3 or the like, drainage to the eaves 3 becomes impossible, and rainwater 15 is generated on the eaves 3. It will accumulate and the eaves 3 will overflow.

  If the rainwater 15 overflowing from the eaves main body 6 overflows from, for example, the upright portion 5 on the eaves side, the overflowed rainwater 15 may enter the back of the hut. Further, when the overflowing rainwater 15 overflows from the eaves 4 on the eave side, for example, as it flows down the eaves main body 6 as shown by the broken line, it flows down onto the eaves ceiling material 62 or the like. There is a risk of permeating the eaves ceiling material 62.

  Since the eaves ceiling material 62 is made of rock wool or the like having water retention, if it contains water, it may cause rain dripping continuously after the rain stops. Therefore, it is important to be able to specify the path of the rainwater 15 overflowing from the eaves main body 6 and to make the path so that the overflowing rainwater 15 does not go to the back of the hut or the eaves ceiling material 62.

  (A) Therefore, the eaves portion 4 on the eaves side is made lower than the erect portion 5 on the eaves side. Thereby, when the rainwater 15 overflows from the eaves bowl main body 6, the overflowing rainwater 15 can be reliably overflowed from the upright part 4 at the eaves side.

  And the eaves part 11 extended to the eaves side is extended in the top part of the standing part 4 at the eaves side. Thereby, the rain water 15 overflowed from the upright part 4 on the eaves side can be guided to the eaves side along the eaves part 11 and can be smoothly drained to a position sufficiently away from the eaves body 6 toward the eaves side.

  The eaves part 11 is arranged at a position away from the eaves ceiling material 62 of the building 1. Thereby, the drainage path of the rainwater 15 overflowing from the eaves main body 6 can be optimally set so as to be surely separated from the eaves ceiling material 62. For example, the rain water 15 overflowing from the eaves main body 6 overflows from the upright portion 5 on the eaves side and enters the back of the hut, or soaks into the eaves ceiling material 62 and causes rain dripping. It becomes possible to prevent it semipermanently.

  At this time, the drainage path of the overflowing rainwater 15 can be specified or set freely only by devising the cross-sectional shape of the eaves main body 6. Therefore, for example, it is not necessary to provide an overflow pipe or the like in order to provide the drainage path, and accordingly, labor and parts costs for installing the overflow pipe or the like can be reduced. In addition, for example, it is not necessary to provide a portion having a different shape such as a discharge port in the middle of the eaves portion 4 on the eaves side, and accordingly, the eaves main body 6 is formed in a uniform shape in the longitudinal direction. Can be manufactured at low cost without labor.

  In addition, the height difference between the upright part 4 on the eaves side and the upright part 5 on the eaves side is set to a minimum size necessary to prevent an overflow from the upright part 5 on the eaves side. Or it can be set to a size having a margin that can more reliably prevent overflow from the erect upper portion 5 on the eaves side.

  (B) You may provide the water return part 21 extended in the eaves side at the top part of the standing upper part 5 at the eaves side. Thereby, it is possible to effectively prevent the rainwater 15 from overflowing from the upright portion 5 on the eaves side by the water return portion 21.

  (C) You may provide the draining part 31 in the edge part of the eaves side of the collar part 11. FIG. Thereby, it is possible to overflow the rainwater 15 overflowing from the standing upper part 4 on the eaves side and guided to the eaves side through the eaves part 11 from the eaves part 11 by the draining part 31. Therefore, it is possible to promote drainage of the rainwater 15 that has overflowed from the eaves portion 4 on the eaves side, and to prevent the overflowing rainwater 15 from flowing along the outside of the eaves main body 6 (transfer water is generated).

  (D) The collar part 11 may be provided with a positioning part 41 in the vertical direction. The positioning portion 41 accurately defines the vertical position of the flange portion 11. Thereby, by positioning the collar part 11 in the vertical direction using the positioning part 41, the collar part 11 can be reliably and stably attached in a horizontal state or a state having the required gradient 18. it can. For example, even when the wind is strong, the eaves side of the eaves wall 3 (installed on the ventilation path or the like) can be prevented from fluttering. At this time, by using the draining portion 31 provided on the eaves side of the collar portion 11 as the positioning portion 41, the structure can be rationalized or consolidated.

  <Effect> According to this embodiment, the following effects can be obtained.

  (Effect 1) The eaves bowl 3 may have an overflow part (an upright part 4 lower than the eaves part 5 on the eaves side, the eaves part 11 or the like) in the upright part 4 formed on the eaves side. Thereby, when the eaves 3 overflows due to a drainage trouble or the like, the rainwater 15 can be reliably overflowed from the overflow portion toward the eaves side.

  In addition, a drainage portion (such as a flow-down guide portion 69) may be provided in the decorative material 63 attached to the support member (the heel forming arm 56) using the decorative material support bracket 59. As a result, when the eaves 3 overflows due to a drainage problem or the like, the drainer can take out the rainwater 15 overflowed from the overflow part from the drainer to the outside of the decorative material 63 and drain it from the decorative material 63. 15 can be a drainage route for draining without trouble. Therefore, the rainwater 15 overflowing from the eaves wall 3 is prevented from, for example, collecting in the interior of the decorative material 63, flowing into the back of the shed, or flowing into the eaves ceiling, and is strong against drainage troubles. Can be.

  (Effect 2) When the elevating part 4 on the eaves side of the eaves bowl 3 is provided with an overflow part extending toward the eaves side, the overflow part may interfere with the eaves side part of the decorative material support fitting 59. In such a case, the decorative material support fitting 59 may be provided with a notch 59a that can accommodate and hold an overflow portion (particularly, the collar portion 11 or the like). Thereby, the interference between the decorative material support fitting 59 for supporting the decorative material 63 and the overflow portion (such as the flange portion 11) of the upright portion 4 on the eaves side of the eaves rod 3 can be reliably prevented by the cutout portion 59a. it can.

  (Effect 3) A fixing fin member (auxiliary tool 45) capable of positioning and fixing the tip of the overflow portion (positioning portion 41) may be interposed in the notch 59a. Thereby, the front-end | tip part (positioning part 41) of an overflow part can be positioned and fixed now correctly and reliably with respect to the notch part 59a of the decorative material support metal fitting 59 via a fixed fin member.

  (Effect 4) The eaves bowl 3 may have an overflow part (an upright part 4 lower than the eaves part 5 on the eaves side or the eaves part 11) in the upright part 4 formed on the eaves side. Thereby, when the eaves 3 overflows due to a drainage trouble or the like, the rainwater 15 can be reliably overflowed from the overflow portion toward the eaves side.

  Further, a ventilation drainage portion (ventilation portion) is provided at a position lower than the eaves eaves 3 of the decorative material 63 attached to the front end portion of the support member (the eaves forming arm 56) using the decorative material support bracket 59 and higher than the eaves ceiling material 62. 68, flow guide part 69, etc.) may be provided. As a result, the ventilation drainage section provided at the above position is normally used for ventilation, and when the eaves 3 overflows due to drainage troubles, etc., the ventilation drainage section is replaced with the rainwater 15 overflowing from the overflow section. It can be taken out of the decorative material 63 from the ventilation drainage portion and drained from the cosmetic material 63, and the ventilation drainage portion can be effectively used as a drainage path for draining the rainwater 15 without any trouble. Therefore, the rainwater 15 overflowing from the eaves wall 3 is prevented from, for example, collecting in the interior of the decorative material 63, flowing into the back of the shed, or flowing into the eaves ceiling, and is strong against drainage troubles. Can be.

  (Effect 5) You may make it provide the ventilating water drain part (the ventilation part 68, the flow down guide part 69, etc.) in the position of the front end side of a support member (the heel formation arm 56). As a result, a ventilation drainage part for draining rainwater 15 overflowed from the overflow part (the upright part 4 lower than the upright part 5 on the eaves side or the eaves part 11) to the outside of the decorative material 63 is provided. 3 and the eaves ceiling material 62 located directly below the eaves wall 3 can be installed at a position on the front end side of the support member that is further away from the eaves end side. Further, the position of the support member on the front end side is higher than the eaves ceiling material 62. Therefore, the drainage drainage portion is made a drainage path that does not pass through the eaves ceiling material 62, and the rainwater 15 overflowed from the overflow portion is discharged from the ventilating drainage portion before flowing into the eaves ceiling material 62 located directly under the eaves fence 3. It becomes possible to drain.

  (Effect 6) You may make it provide the flow-down guide part 69 in the ventilation draining part (ventilation part 68 etc.). As a result, the rainwater 15 that overflows from the overflow portion of the eaves wall 3 (the upright portion 4 lower than the upright portion 5 on the eaves side, the eaves portion 11, etc.) and is led to the ventilating drainage portion is discharged from the ventilating drainage portion. The flow down guide part 69 smoothly guides the flow down to the outside, and the drainage can be promoted.

  (Effect 7) The decorative material 63 may be provided with a ventilation port 71 other than the ventilation drainage section (such as the ventilation section 68). As a result, even if the ventilating drainage part is used for draining rainwater 15 that has overflowed from the overflow part (the upright part 4 lower than the upright part 5 on the eaves side or the eaves part 11), another vent 71 can be ventilated without hindrance.

  (Effect 8) According to the building 1 of this embodiment, by having the eaves-end structure, it is possible to obtain the same effects as the eaves-end structure. Further, according to the above, even in the case of the building 1 having the eaves cage 3 covered with the decorative material 63, the rainwater overflowed from the upright portion 4 on the eaves side is provided by providing the ventilation material 68 and the flow guide portion 69 on the decorative material 63. 15 can be smoothly drained to the outside through the ventilation part 68, the flow guide part 69, etc. provided on the decorative material 63 semipermanently.

  As mentioned above, although embodiment of this invention has been explained in full detail with drawing, embodiment is only an illustration of this invention. Therefore, the present invention is not limited only to the configuration of the embodiment, and it goes without saying that design changes and the like within a scope not departing from the gist of the present invention are included in the present invention. Further, for example, when each embodiment includes a plurality of configurations, it is a matter of course that possible combinations of these configurations are included even if not specifically described. In addition, in the case where a plurality of examples and modifications are disclosed in the embodiment as those of the present invention, possible combinations of combinations extending over these are included even if not specifically described. Of course. Further, the configuration depicted in the drawings is of course included even if not particularly described. Further, when there is a term of “etc.”, it is used in the sense that the equivalent is included. In addition, when there are terms such as “almost”, “about”, “degree”, etc., they are used in the sense that they include those in the range and accuracy recognized by common sense.

1 building 3 houses 樋 4 houses upright (overflow part)
11 Buttocks (overflow part)
45 Auxiliary tool (fixing fin member)
51 building unit (building itself)
53 Exterior wall material (wall surface)
56 Wrinkle forming arm (support member)
59 Cosmetic material support bracket 59b Notch 62 Eave ceiling material 63 Cosmetic material 68 Ventilation part (ventilation water drainage part)
69 Downflow guide (drainage or ventilation drainage)
71 Another vent

Claims (8)

  A supporting member is provided on the building body, an eaves basket is attached to the upper part of the supporting member, an eaves ceiling material is attached to the lower part of the supporting member, and a decorative material is attached to the supporting member using a decorative material support fitting. In the eaves-end structure, the eaves ridge has an overflow portion at an upright portion formed on the eave-end side, and the decorative material is provided with a draining portion capable of draining rainwater overflowed from the overflow portion to the outside. Characteristic eaves structure. In the eaves structure according to claim 1,
The eaves-end structure, wherein the decorative material support metal fitting has a cutout portion capable of accommodating and holding the overflow portion. In the eaves structure according to claim 2,
An eaves tip structure in which a fixing fin member capable of positioning and fixing the tip of the overflow portion is interposed in the cutout portion.   The building body is provided with a support member extending in a direction perpendicular to the wall surface of the building body, an eave ridge is attached to the upper part of the support member, and an eaves ceiling material is attached to the lower part of the support member. In the eaves structure in which the decorative material is attached using a decorative material support metal fitting at the tip, the eave ridge has an overflow portion formed on the eaves side, and is lower than the eave ridge of the decorative material. An eaves tip structure provided with a ventilation drainage section capable of draining the rainwater overflowed from the ventilation and the overflow section to the outside at a position higher than the eaves ceiling material. In the eaves structure according to claim 4,
The eaves tip structure, wherein the ventilating drainage portion is provided at a position on a tip side of the support member. In the eaves structure according to claim 4 or claim 5,
The eaves tip structure is provided with a flow guide part for guiding the flow of rainwater overflowing from the overflow part of the eaves wall in the ventilation drainage part. In the eaves tip structure according to any one of claims 4 to 6,
An eaves-end structure, wherein the decorative material is provided with a ventilation opening different from the ventilation drainage portion.   A building having the eaves tip structure according to any one of claims 1 to 7.