Building eaves

Abstract

To provide eaves for buildings that prevent water from penetrating between building eaves and a building frame.SOLUTION: A base frame 20 comprises a vertical piece 26 fixed to a wall 70 of a building frame and a horizontal piece 27 protruding forward from the vertical piece 26. The vertical piece 26 is fixed in contact with the wall 70 of the building frame without any gap, and the horizontal piece 27 comprises a support surface 27g supporting the lower surface of the eave plate 11 so as to incline upward as moving forward, and a gutter groove 27c formed at the rear end 11a of the eave plate 11.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] This invention relates to building eaves that are attached to the eaves of a building, and in particular to building eaves with a so-called reverse gradient that gradually slopes upward toward the front. [Background technology]

[0002] One example of this type of eave is proposed in Patent Document 1. This eave is constructed by holding the base end of the eave plate with a retainer so that the eave plate protrudes forward from the exterior wall surface of the building. The retainer includes a holding frame member with a horizontal plate portion that is integral with a vertical plate portion fixed to the exterior wall surface of the building and supports the underside of the base end of the eave plate over its entire width; a wedge plate that is interposed so that the rear surfaces of the vertical plate portion of the holding frame member and the exterior wall surface of the building contact each other on both the front and rear sides and tilts the vertical plate portion relative to the vertical plane so that the eave plate is inclined downward toward the rear; and a rain gutter that is connected to the lower end of the wedge plate and positioned below the horizontal plate portion of the holding frame member. The horizontal plate portion of the holding frame member has a drainage hole that communicates with the rain gutter. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-77468 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the configuration described in Patent Document 1 tilts the vertical plate portion by inserting a wedge plate behind the vertical plate portion, creating a gap between the back of the vertical plate portion and the exterior wall surface of the building. This gap allows rainwater and other elements to easily seep in, potentially causing deterioration of the building's framework. Furthermore, because the entire holding frame is tilted, rainwater flowing along the surface of the vertical plate portion can seep into the inside of the holding frame in large quantities and cause overflow. To prevent this overflow, the number of drainage holes must be increased, which increases the processing effort and reduces the strength of the structure. In view of the problems of the conventional technology, the present invention aims to provide a building eaves that is less likely to allow water to penetrate between the building eaves and the building frame. [Means for solving the problem]

[0005] In order to solve the above-mentioned problems, the present invention comprises a base frame attached to a building structure and an eave plate supported by the base frame, and when the horizontal direction in which the eave plate protrudes is defined as the front and the building structure side as viewed from the eave plate is defined as the rear, the base frame comprises a vertical piece fixed to the wall surface of the building structure and a horizontal piece protruding forward from the vertical piece, the vertical piece is fixed in abutment with the wall surface of the building structure without any gaps, and the horizontal piece comprises a support surface that supports the underside of the eave plate so that it slopes upward as it goes forward, and a gutter groove formed at the rear end position of the eave plate. [Effects of the Invention]

[0006] The present invention is as described above, and the base frame comprises vertical pieces fixed to the wall surface of the building skeleton and horizontal pieces protruding forward from the vertical pieces. The vertical pieces are fixed in abutting contact with the wall surface of the building skeleton without any gaps, and the horizontal pieces have support surfaces that support the underside of the eaves plate so that they slope upward toward the front, and a gutter formed at the rear end of the eaves plate. With this configuration, there are no gaps between the vertical pieces and the wall surface of the building skeleton, making it difficult for rainwater and other elements to penetrate, preventing deterioration of the building skeleton due to water damage. Furthermore, rainwater that flows down the front of the vertical pieces can be caught by the gutter formed in the horizontal pieces, preventing water damage to the building skeleton. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is an external view of a building eave. [Figure 2] FIG. 2 is a side cross-sectional view of a building eave. [Figure 3] (a) Front view of the middle eave member, (b) front view of the left eave member, and (c) front view of the right eave member. [Figure 4] 10A and 10B are diagrams showing the procedure for placing the pivot shaft portion on the pivot receiving portion and joining the eave material. [Figure 5] 10A and 10B are diagrams showing the procedure for inserting a rotation receiving part into a guide groove and joining a eaves material. [Figure 6] This is a view of the building eaves from the back side. [Figure 7] FIG. 10 is a diagram showing the construction of a building eave. [Figure 8] 10A and 10B are diagrams illustrating a support structure for the eave plate. [Figure 9] (a) is a side view of the base frame, and (b) is a side view of the horizontal gutter bracket. [Figure 10] FIG. 10 is a diagram showing how the drain portion is attached. [Figure 11] This is a view of the eaves material from above. [Figure 12] FIG. 12 is an end view of the line AA shown in FIG. [Figure 13] FIG. 12 is an end view of the line BB shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] An embodiment of the present invention will be described with reference to the drawings. In the following description, the horizontal direction in which the eaves plate 11 protrudes will be referred to as the front, and the side of the building skeleton (the opposite direction from the front) as viewed from the eaves plate 11 will be referred to as the rear. This front-to-rear direction will be referred to as the depth direction D of the building eaves 10, and the horizontal direction perpendicular to the depth direction D will be referred to as the width direction W. The vertical direction will be referred to as the height direction H (up-down direction).

[0009] The building eaves 10 of this embodiment is attached to the eaves of a building to block direct sunlight, rainwater, etc., and as shown in Figures 1 and 2, it comprises an eaves plate 11, a base frame 20, a base angle 21, a base cover 23, a base lid 25, a tip frame 28, a tip cover 29, a tip lid 30, a drain section 31, a gutter bracket 35, a gutter 36, a gutter lid 37, a gutter cover 38, and a downspout 39.

[0010] The eaves plate 11 is formed by joining multiple eaves materials 12 in the width direction W. In this embodiment, the eaves plate 11 is constructed by combining a left eaves material 14 used at the left end of the eaves plate 11, a right eaves material 15 used at the right end of the eaves plate 11, and an intermediate eaves material 13 placed between the left eaves material 14 and the right eaves material 15. The width of the eaves plate 11 can be adjusted by increasing or decreasing the number of intermediate eaves materials 13. These three types of eaves materials 12 are hollow, elongated materials as shown in Figure 3, and are, for example, extruded aluminum profiles. These eaves materials 12 are all formed to the same length, and the height dimensions (thickness) of the top and bottom are also set to be approximately the same.

[0011] The base frame 20 is a member for supporting the eaves plate 11 and other members, and is attached to a wall surface 70 of the building skeleton as shown in FIG. 2. This base frame 20 is a long member with a width equal to or greater than that of the eaves plate 11. As shown in FIG. 2, the base frame 20 according to this embodiment is fixed to the wall surface 70 of the building with mounting bolts 20a and mounting nuts 20b that are attached to the wall surface 70 in advance. The eaves plate 11 is attached to the front of this base frame 20. The base frame 20 according to this embodiment supports the eaves plate 11 so that it slopes upward as it goes forward.

[0012] The base angle 21 is a member that cooperates with the base frame 20 to support the eave material 12. Specifically, as shown in FIG. 2, the eave material 12, whose underside is supported by the base frame 20, is pressed down from above by the base angle 21, and the base frame 20 and the base angle 21 support the eave material 12 by sandwiching it from both the top and bottom. As shown in FIG. 7, one base angle 21 is provided for each eave material 12, and the same number of base angles 21 are used as there are eave materials 12. Note that, since the base angles 21 according to this embodiment are provided so as to straddle adjacent eave plates 11, the number of base angles 21 may be less than the number of eave plates 11 (for example, one for every two eave plates 11).

[0013] The base cover 23 is a cover member attached to cover the top surfaces of the base frame 20 and the base angle 21. The base cover 23 prevents rainwater from falling directly onto the base frame 20 and the base angle 21. The base cover 23 is inclined so that rainwater flows toward the eave member 12 in front. The rear end of the base cover 23 is fixed to the base frame 20 with base cover screws 24, and the front end is hooked between the tip of the base angle 21 and the top surface of the eave plate 11.

[0014] The base lid 25 is a cover member attached to the side end (small edge) of the base frame 20. The base lid 25 is fixed to both ends of the base frame 20 with screws or the like.

[0015] The tip frame 28 is a member for attaching a tip cover 29, which will be described later, to the eaves plate 11. The tip frame 28 according to this embodiment is a long member with a substantially L-shaped cross section. The tip frame 28 is attached to the tip of the eaves plate 11 with tip frame screws 28a.

[0016] The tip cover 29 is a long cover material that covers the tip of the eaves plate 11. The tip cover 29 is attached to the tip frame 28 by tip cover screws 29a.

[0017] The tip lid 30 is a cover member attached to the side end (small edge) of the tip cover 29. The tip lid 30 is fixed to both ends of the tip cover 29 with screws or the like.

[0018] The drain section 31 is used to drain water that accumulates on the upper surface of the eaves plate 11 downward. The eaves plate 11 has a mounting hole 12c that penetrates from top to bottom (see Figure 6. Mounting holes 12c of the same shape are formed in the upper plate section 40 and the lower plate section 41, which will be described later). By attaching the drain section 31 to this mounting hole 12c, water can be drained to the underside of the eaves plate 11. Note that, since the eaves plate 11 in this embodiment is inclined so that the front side is higher, rainwater received by the eaves plate 11 flows rearward. For this reason, as shown in Figure 8, the drain section 31 is provided near the rear end 11a of the eaves plate 11, so that rainwater that flows rearward along the slope of the eaves plate 11 can be drained downward.

[0019] The gutter bracket 35 is a member for attaching a gutter 36 (described later) to the underside of the eaves plate 11. The gutter bracket 35 is fixed to the underside of the eaves plate 11 with screws or the like, with its rear end engaged with the base frame 20.

[0020] The horizontal gutter 36 is for receiving rainwater and the like collected by the eaves plate 11, and is disposed below the eaves plate 11 and extends in the width direction W. The horizontal gutter 36 is set to be at least longer than the width of the eaves plate 11.

[0021] The gutter lid 37 is a cover member attached to the side end (small end) of the gutter 36. The gutter lid 37 is fixed to the gutter 36 with screws or the like. As shown in FIG. 1, the gutter lid 37 is formed with a lid hole 37a to prevent overflow.

[0022] The gutter cover 38 is a covering material that conceals the fixing points between the gutter 36 and the gutter bracket 35 so that they cannot be seen from the outside. The gutter cover 38 is fitted onto the upper end of the front face of the gutter 36.

[0023] The downspout 39 is a pipe for discharging rainwater collected by the horizontal gutter 36 to the ground. The downspout 39 is connected to the horizontal gutter 36 at an arbitrary location in a T-shape (or an inverted L-shape). Next, the specific shape of the above-mentioned canopy member 12 will be described in detail.

[0024] As shown in Fig. 3, the eave member 12 according to this embodiment includes an upper plate portion 40 and a lower plate portion 41 that are parallel to each other, with a hollow space between the upper plate portion 40 and the lower plate portion 41. A plurality of vertical walls extending in the vertical direction are provided between the upper plate portion 40 and the lower plate portion 41. In this embodiment, the vertical walls include side wall portions 42 on both the left and right sides, and an intermediate wall portion 43 between the side wall portions 42.

[0025] Furthermore, these eave members 12 have a first joint 50 or a second joint 60 on their sides. In this embodiment, the middle eave member 13 has a first joint 50 on its right side and a second joint 60 on its left side. The left eave member 14 has a first joint 50 on its right side and a side end gutter 68 on its left side. The right eave member 15 has a side end gutter 68 on its right side and a second joint 60 on its left side. Adjacent eave members 12 are joined to each other by engagement between the first joint 50 on one side and the second joint 60 on the other side. The side end gutter 68 on the left eave member 14 and the right eave member 15 are grooves that open upward and are intended to drain rainwater received by the eave plate 11.

[0026] 3, the first joint portion 50 is a modified, generally U-shaped portion that opens to the side. The first joint portion 50 includes a first side wall portion 52 that is the side wall portion 42 that defines the first joint portion 50, a first upper protrusion 51 that protrudes laterally beyond the first side wall portion 52 by extending the upper plate portion 40, and a first lower protrusion 53 that protrudes laterally beyond the first side wall portion 52 by extending the lower plate portion 41. A rotation shaft portion 51a is formed at the tip of the first upper protrusion portion 51. At least the lower surface of the rotation shaft portion 51a is formed as a curved surface (preferably a semi-cylindrical curved surface).

[0027] An arc-shaped portion 52a is provided at the upper end of the first side wall portion 52 so as to be continuous with the lower surface of the upper plate portion 40. The arc-shaped portion 52a is formed in an arc shape that follows the circumferential surface of the rotation shaft portion 51a. With this configuration, an arc-shaped guide groove 52b is formed between the rotation shaft portion 51a and the arc-shaped portion 52a, and the rotation shaft portion 51a is disposed above this guide groove 52b.

[0028] Furthermore, a straight portion 52d extending substantially vertically downward is connected to the first side wall portion 52 below the guide groove 52b (arcuate portion 52a). An inclined portion 52c is connected below this straight portion 52d. This inclined portion 52c is inclined inward (opposite the opening direction of the first joint portion 50) as it extends downward.

[0029] The first lower protrusion 53 includes a flat plate portion 53a continuous with the lower plate portion 41, a rising portion 53b extending upward from the end of the flat plate portion 53a, and an arc-shaped curved piece 53c extending diagonally upward from the upper end of the rising portion 53b. The curved piece 53c is formed in an arc shape centered on the rotation shaft 51a below the rotation shaft 51a. Note that the curved piece 53c does not have to be completely arc-shaped centered on the rotation shaft 51a, as long as it has a shape that follows the outer periphery of the rotation shaft 51a.

[0030] The space surrounded by the first side wall portion 52 and the first lower protrusion portion 53 is groove-shaped and opens upward, forming an intermediate gutter portion 54 for receiving water that seeps in through the joined joints. This intermediate gutter portion 54 allows water to flow in the longitudinal direction of the eave material 12. In this embodiment, a portion of the first side wall portion 52 is formed at an angle (having an inclined portion 52c), ensuring a large volume for the intermediate gutter portion 54 (the maximum volume of water that can be received in the gutter). Furthermore, because the curved piece 53c protrudes sideways in an arc, the volume of the intermediate gutter portion 54 is further increased.

[0031] Next, the second joint 60 joined to the first joint 50 will be described. As shown in Fig. 3, the second joint 60 is also a modified, generally U-shaped portion that opens to the side. The second joint 60 includes a second side wall 62 that is the side wall 42 that defines the second joint 60, a second upper protrusion 61 that protrudes laterally beyond the second side wall 62 by extending the upper plate 40, and a second lower protrusion 63 that protrudes laterally beyond the second side wall 62 by extending the lower plate 41.

[0032] A pivot receiving portion 61a is formed at the tip of the second upper protrusion 61. The pivot receiving portion 61a has an arc-shaped inner circumferential surface that opens upward. This pivot receiving portion 61a can support the pivot shaft portion 51a of the first joint portion 50 from below. This pivot receiving portion 61a can rotatably support the placed pivot shaft portion 51a. Furthermore, this pivot receiving portion 61a can be inserted into the guide groove 52b of the first joint portion 50. Because the guide groove 52b has the same arc shape as the pivot receiving portion 61a, it can rotatably support the inserted pivot receiving portion 61a. With this configuration, the first joint portion 50 and the second joint portion 60 can be rotated relative to each other, easily joining the eave member 12. This joining method will be described in detail later.

[0033] The second side wall 62 also includes a support groove 62a into which the tip of the curved piece 53c of the first joint 50 is inserted. When the first joint 50 and the second joint 60 are joined, the curved piece 53c is inserted into the support groove 62a, allowing it to withstand loads in the vertical and horizontal directions, thereby increasing the strength of the joint. In other words, support is provided at two points: the pivot receiving portion 61a inserted into the guide groove 52b and the curved piece 53c inserted into the support groove 62a, providing reinforcement against loads in the vertical and horizontal directions. Furthermore, as shown in Figures 4(d) and 5(d), a labyrinth shape is formed at the tip of the intermediate gutter 54, preventing water from leaking to the underside of the eave member 12. The support groove 62a is slightly wider than the thickness of the curved piece 53c, allowing the curved piece 53c to fit loosely within the support groove 62a. In other words, the curved piece 53c is inserted into the support groove 62a with a gap around it. It is desirable that the support groove 62a and the curved piece 53c are formed so that they do not come into contact with each other when the first joint portion 50 and the second joint portion 60 are rotated to join together. By loosely fitting the curved piece 53c into the support groove 62a in this way, no force is required when joining or detaching the eave material 12, making the work easy.

[0034] Additionally, an upwardly bent erected portion 63a is formed at the tip of the second lower protrusion 63. This erected portion 63a abuts against the rising portion 53b when the first joint 50 and the second joint 60 are joined. The abutment of this erected portion 63a against the rising portion 53b supports adjacent eave members 12 in a flat state relative to each other. Furthermore, the formation of this erected portion 63a creates a groove-shaped space surrounded by the second side wall portion 62 and the second lower protrusion 63, forming a secondary gutter 64. As shown in FIGS. 4(d) and 5(d), this secondary gutter 64 is positioned below and overlaps the intermediate gutter 54, and can catch water that leaks outside the intermediate gutter 54. The provision of this secondary gutter 64 allows water to be caught even if it infiltrates behind the curved piece 53c.

[0035] The first bonding portion 50 and the second bonding portion 60 can be bonded together by rotating the first bonding portion 50 as shown in Fig. 4. Alternatively, the second bonding portion 60 can be bonded together by rotating the second bonding portion 60 as shown in Fig. 5.

[0036] When joining the first joint part 50 by rotating it, first, as shown in FIG. 4(b), the first joint part 50 is tilted and inserted from above into the second joint part 60. Then, as shown in FIG. 4(c), the rotation shaft part 51a is placed on the rotation receiving part 61a. After that, as shown in FIG. 4(d), the first joint part 50 is rotated around the rotation shaft part 51a, and the rising part 53b is brought into contact with the erected part 63a. By this operation, two adjacent eaves members 12 are joined flat to each other. At this time, the curved piece 53c is automatically inserted into the support groove 62a.

[0037] When rotating the second joint portion 60 for joining, first, as shown in FIG. 5(a), tilt the second joint portion 60 and insert it into the first joint portion 50 from above. Then, as shown in FIG. 5(b), slide the rotation receiving portion 61a upward along the inclined portion 52c. Then, as shown in FIG. 5(c), the rotation receiving portion 61a fits into and catches in the guide groove 52b. Then, as shown in FIG. 5(d), insert the rotation receiving portion 61a along the guide groove 52b to rotate the second joint portion 60 and bring the erect portion 63a into contact with the rising portion 53b. This operation joins two adjacent eaves members 12 flat to each other. At this time, the curved piece 53c is automatically inserted into the support groove 62a.

[0038] The first joint 50 and second joint 60 described above are formed over the entire longitudinal length of the eaves material 12. Therefore, as shown in Figure 6, after the first joint 50 and the second joint 60 are joined, the eaves material 12 can be slid in the depth direction D of the building eaves 10. Therefore, after joining the eaves material 12, it can be slid to the mounting position (towards the base frame 20) and fixed to the base frame 20, which improves workability.

[0039] As shown in FIG. 6, an irregular wood grain pattern 12a is formed on the underside of these eaves materials 12. This wood grain pattern 12a is formed along the longitudinal direction of the eaves materials 12, and by making the spacing and height irregular, a natural wood grain can be expressed. By forming the wood grain, the design characteristics of the wood grain can be utilized, and the joints between the eaves materials 12 become less noticeable, resulting in a good design. Furthermore, since the wood grain can be formed during extrusion molding, manufacturing is easy. In this embodiment, the wood grain is formed along the direction of extrusion molding, but this is not limited to this, and the wood grain may be formed in a direction perpendicular to the direction of extrusion molding. Next, the specific shapes of the base angle 21 and the base frame 20 will be described in detail.

[0040] The base angle 21 is a member attached to the base frame 20 to support the upper surface of the eaves plate 11, and is formed in the shape of a plate bent in a stepped pattern as shown in FIG. 8. The base angle 21 has a hook portion 21a at its upper end, an arm portion 21b extending diagonally downward and forward from the hook portion 21a, and an attachment portion 21c formed and protruding forward from the tip of the arm portion 21b. The hook portion 21a is a portion that is hooked onto the inside of a locking piece 26a (described below) of the base frame 20. The hook portion 21a is inserted into the inside of the locking piece 26a of the base frame 20 from below and is held down from above by the locking piece 26a. The attachment portion 21c is a portion that abuts against the upper surface of the eaves material 12 and holds down the upper surface of the eaves material 12 from above. The attachment portion 21c is fixed to the eaves material 12 by an eaves fixing device 22 (described below). Furthermore, a cover engaging portion 21d is formed at the tip of the mounting portion 21c for engaging the base cover 23. The arm portion 21b is formed so that the rear is higher and the front is lower, so that rainwater and the like received on the upper surface is guided forward. As shown in FIG. 8, the base frame 20 is a substantially L-shaped member, and includes a substantially vertical vertical piece 26 and a horizontal piece 27 that protrudes forward from the vicinity of the lower end of the vertical piece 26.

[0041] The vertical piece 26 is a plate-like part that is fixed in abutment against the surface (wall surface 70) of the building frame. The vertical piece 26 has a mounting hole pre-drilled therein for the mounting bolt 20a to pass through. The mounting bolt 20a is inserted into this hole and the mounting nut 20b is tightened from the front to fix it to the wall surface 70. At this time, the rear surface of the vertical piece 26 is fixed in a state where it is tightly attached to the surface of the building frame. Since there is no gap between the vertical piece 26 and the surface of the building frame, rainwater and the like can be prevented from entering the gap. A cover mounting piece 26d, a locking piece 26a, and a support piece 26b are formed on the front surface of the vertical piece 26 so as to protrude forward.

[0042] The cover attachment piece 26d is for attaching the upper end of the base cover 23, and is provided near the upper end of the vertical piece 26. The upper surface of this cover attachment piece 26d slopes downward as it goes forward.

[0043] The locking piece 26a protrudes forward to engage the hooking portion 21a of the base angle 21. The locking piece 26a protrudes horizontally in a roughly J-shape and opens downward. The hooking portion 21a can be hooked onto the locking piece 26a. Specifically, with the base angle 21 tilted, the hooking portion 21a is inserted into the inside of the locking piece 26a from below, and the hooking portion 21a can be hooked onto the inside of the locking piece 26a. Then, when the base frame 20 is rotated around the hooked tip, the locking piece 26a can embrace and hold the hooking portion 21a. Note that because the locking piece 26a simply hooks and holds the hooking portion 21a, it can be easily disengaged by tilting the base angle 21. The upper surface of the locking piece 26a slopes downward toward the front, guiding rainwater and other debris forward.

[0044] The support piece 26b is a protruding portion that can be abutted against the rear end 11a of the eaves plate 11. A positioning protrusion 26c is formed at the tip of this support piece 26b, against which the rear end 11a of the eaves plate 11 can abut. When attaching the eaves material 12 to the base frame 20, the rear end 11a of the eaves plate 11 abuts against the positioning protrusion 26c, thereby aligning the position of the eaves material 12. Furthermore, this positioning protrusion 26c protrudes vertically above the gutter groove 27c, which will be described later. Therefore, when the eaves material 12 is attached in a position where it abuts against the positioning protrusion 26c, the lower end 11b of the rear end 11a of the eaves plate 11 (eaves material 12) is positioned inside the gutter groove 27c. In other words, the positioning protrusion 26c supports the rear end 11a of the eaves plate 11, thereby forming a gap between the lower end 11b of the rear end 11a of the eaves plate 11 and the gutter groove 27c. This arrangement allows water that accumulates in the intermediate gutter section 54 and the secondary gutter section 64 to flow smoothly into the gutter groove 27c. The upper surface of this support piece 26b is inclined downward as it goes forward, so that rainwater and the like are guided forward.

[0045] The horizontal piece 27 is a part that protrudes forward from the vertical piece 26 and supports the underside of the eaves plate 11. The horizontal piece 27 in this embodiment has a support surface 27g that supports the underside of the eaves plate 11 so that it slopes upward as it goes forward. This support surface 27g is a flat surface that forms an acute angle with the rear surface of the vertical piece 26 (the surface that contacts the wall surface 70), and by placing the eaves plate 11 on this support surface 27g, the eaves have a so-called reverse slope. In a building eaves 10 with such a reverse slope, rainwater received by the building eaves 10 flows toward the building frame.

[0046] A gutter groove 27c is formed on the upper surface of this horizontal piece 27, as shown in FIG. 8. This gutter groove 27c is located rearward of the support surface 27g. This gutter groove 27c is formed at the rear end 11a of the eave plate 11 and can catch water that has flowed inside the eave plate 11 (the intermediate gutter section 54 and the secondary gutter section 64). As shown in FIG. 9, the gutter groove 27c according to this embodiment is formed with a front gutter front wall 27a and a rear gutter rear wall 27b. The rear gutter wall 27b also functions as reinforcement to support the support piece 26b from below. The bottom surface of this gutter groove 27c is inclined forward, and a drainage hole 27d is formed on the front side of the bottom surface (near the boundary with the gutter front wall 27a). Water collected in the gutter groove 27c passes through the drainage hole 27d and is discharged downward (to the horizontal gutter 36). In addition, a downwardly protruding protrusion 27h is formed on the lower surface of the horizontal piece 27, rearward of the gutter groove 27c. By providing this protrusion 27h, even if water tries to flow from the opening edge of the drain hole 27d along the underside of the horizontal piece 27 toward the vertical piece 26, the water is cut off by the protrusion 27h and falls into the horizontal gutter 36.

[0047] A gutter locking portion 27e that engages with the rear end of the gutter 36 protrudes from the underside of the horizontal piece 27. The gutter locking portion 27e according to this embodiment protrudes downward from a position vertically below the vertical piece 26. The gutter locking portion 27e is formed in a generally horizontal L-shape, with its tip protruding forward.

[0048] A bracket engagement portion 27f is provided at the front end of the horizontal piece 27 for connecting a horizontal gutter bracket 35. The horizontal gutter bracket 35 is a plate-shaped member that is provided to extend the horizontal piece 27 of the base frame 20. This horizontal gutter bracket 35 is formed to be shorter than the base frame 20, and multiple horizontal gutter brackets 35 are attached at intervals in the width direction W. By using this interval to position the drain portion 31, the horizontal gutter bracket 35 and the drain portion 31 do not interfere with each other.

[0049] As shown in Fig. 9, the gutter bracket 35 according to this embodiment includes a flat plate portion 35a, a rear-end engagement portion 35b provided at the rear end of the flat plate portion 35a, an engagement recess 35c provided at the front end of the flat plate portion 35a, and a gutter support piece 35d extending diagonally downward and rearward from the engagement recess 35c. As shown in Fig. 8, this gutter bracket 35 is attached to the eaves plate 11 with fasteners such as screws by abutting the flat plate portion 35a against the underside of the eaves plate 11 with the rear-end engagement portion 35b engaged with the bracket engagement portion 27f. The engagement portion 27f also serves as a screw hole for screwing in gutter covers 37 attached to both sides of the gutter 36.

[0050] A horizontal gutter 36 is attached to the horizontal gutter engaging portion 27e and the gutter support piece 35d described above. This horizontal gutter 36 can collect and drain water discharged from the gutter groove 27c and the drain portion 31. As shown in FIG. 6, a notch 12b is formed on the underside of the eaves material 12 to cut off water that has adhered to the joint between adjacent eaves materials 12. This notch 12b is intended to cut off water droplets that have adhered to the joint between the eaves materials 12, and is formed in a position that is covered by the horizontal gutter 36. By providing this notch 12b, even if water droplets that have adhered to the joint between the eaves materials 12 attempt to rise toward the tip (forward) of the eaves material 12 due to capillary action, the water is cut off by the notch 12b, and the cut-off water evaporates or falls into the horizontal gutter 36.

[0051] The building eaves 10 described above can be attached to the wall surface 70, for example, by the following procedure. Although not specifically explained in the following procedure, appropriate sealing is performed to ensure watertightness of gutters and the like.

[0052] (1) The mounting bolt 20a is attached to the wall surface 70. For example, a base material is attached to the back side of the wall surface 70, and the mounting bolt 20a inserted from the back side is fixed to the base material. This causes the mounting bolt 20a to protrude from the wall surface 70. Note that the mounting bolt 20a does not have to be attached in advance; it may be inserted into the wall surface 70 from the side where the base frame 20 is to be attached, sandwiching the base frame 20, and fixed with the mounting nut 20b on the indoor side of the wall surface 70.

[0053] (2) Attach the base frame 20. Specifically, the attachment bolts 20a are inserted into holes pre-formed in the base frame 20, and the attachment nuts 20b are fastened from the front.

[0054] (3) Attach the end eaves material 12 (either the left eaves material 14 or the right eaves material 15). Specifically, the eaves material 12 is placed on the horizontal piece 27 of the base frame 20 and sandwiched from above by the base angle 21, and the base angle 21, eaves material 12, and base frame 20 are fixed together with the eaves fixing device 22. As shown in Figure 8, the eaves fixing device 22 in this embodiment is a bolt and nut that penetrates all of the mounting portion 21c of the base angle 21, the eaves material 12, and the horizontal piece 27 of the base frame 20, and this eaves fixing device 22 can fix these three components together.

[0055] (4) The remaining eave members 12 are attached in order. That is, adjacent eave members 12 are joined using the procedure described in Figure 4 or Figure 5. Then, as shown in Figure 6, the joined eave members 12 are slid all the way to the back of the base frame 20. Then, they are clamped from above with the base angle 21 and fixed with the eave fixing device 22. At this time, if the eave member 12 has a mounting hole 12c formed in it, the drain section 31 is attached to the mounting hole 12c.

[0056] (5) Once all the eaves materials 12 have been installed, the tip frame 28 is screwed to the tip of the eaves plate 11, and then the tip cover 29 is screwed to the tip frame 28.

[0057] (6) The base cover 23 is attached to the top of the base frame 20. Specifically, first, the front end of the base cover 23 is hooked onto the cover engagement portion 21d provided at the front end of the base angle 21. Then, the rear end of the base cover 23 is placed on the cover attachment piece 26d of the base frame 20 and fixed with the base cover screws 24. (7) The base lid 25 is screwed to both sides of the base frame 20. The tip lid 30 is screwed to both sides of the tip cover 29.

[0058] (8) Screw the gutter bracket 35 to the underside of the eaves plate 11. Then, screw the gutter 36. Attach the gutter cover 38 to the location where the gutter 36 is screwed. (9) Screw the gutter cover 37 to both sides of the gutter 36. (10) Connect the downspout 39 to the horizontal gutter 36. This completes the installation. As shown in FIG. 10, the drain portion 31 according to this embodiment is configured to include a drain member 32 and a drain cover member 33.

[0059] The drainage member 32 is inserted into the mounting hole 12c formed in the eaves material 12. The drainage member 32 is generally U-shaped in plan view, consisting of a rear wall 32a and a pair of side walls 32b extending forward from both ends of the rear wall 32a. The upper ends of the pair of side walls 32b are provided with bent portions 32c extending perpendicular to the side walls 32b. The rear wall 32a and the pair of side walls 32b are shaped to fit snugly along the inner periphery of the mounting hole 12c. The front end of the mounting hole 12c is provided with a positioning shape 12d that engages with the front ends of the side walls 32b. Therefore, the drainage member 32 cannot be mounted in a different orientation (e.g., with the rear wall 32a facing forward) due to interference from the rear wall 32a. When the drainage member 32 is inserted into the mounting hole 12c, the bent portions 32c abut against the upper surface of the eaves material 12.

[0060] The drain cover member 33 is attached above the drain member 32 so as to cover it. This drain cover member 33 has a hole 33a for introducing water into the drain member 32. The drain cover member 33, placed on top of the drain member 32, is fixed to the top surface of the eaves member 12 with a screw 33b. The screw 33b penetrates the drain cover member 33, the bent portion 32c, and the top surface (top plate portion 40) of the eaves member 12 in one go. The hole 33a is sized to prevent the intrusion of foreign matter (other than water), such as fallen leaves. The shape and size of the hole 33a may be varied depending on the application. For example, multiple types of drain cover members 33 (not shown) with different hole shapes and sizes may be manufactured in advance, and the optimal drain cover member 33 may be selected and attached to the drain member 32 depending on the application. This allows the same drain cover member 32 to be used for different applications, thereby reducing the number of parts. 8, the drain portion 31 protrudes from the underside (lower plate portion 41) of the eave material 12, so that water that has entered the inside of the eave material 12 can be reliably drained downward. Note that, although the drain portion 31 in this embodiment is configured as separate bodies, namely, the drain member 32 and the drain cover member 33, this is not limiting, and the drain member and the drain cover member may be integrated.

[0061] As described above, the eave plate 11 has side end gutter portions 68 on both sides. Specifically, as shown in FIG. 11 , the side end gutter portions 68 are formed at the left end of the left-most eave member 12 (left eave member 14) and the right end of the right-most eave member 12 (right eave member 15). As shown in FIG. 12 , these side end gutter portions 68 are generally U-shaped and open upward. Furthermore, as shown in FIGS. 11 and 12 , multiple elongated drainage holes 68a are formed near the rear end of these side end gutter portions 68. These drainage holes 68a are intended to drain water flowing through the side end gutter portions 68 to the horizontal gutter 36 below. As shown in FIG. 12 , the side end gutter portions 68 have rounded corner portions 68b (inner corner portions), and of the multiple drainage holes 68a, the drainage holes 68a provided at both ends are formed to overlap the rounded corner portions 68b. Additionally, a blocking material 68c that blocks the rear end of the side end gutter portion 68 is provided inside the side end gutter portion 68. As shown in Fig. 13, the blocking material 68c has an abutment portion 68d that is adjacent to the rear end position of the drainage hole 68a. The presence of this abutment portion 68d makes it possible to block water from flowing into the side end gutter portion 68 rearward of the drainage hole 68a.

[0062] As described above, in the building eaves 10 according to this embodiment, the base frame 20 includes vertical pieces 26 fixed to the building frame wall 70 and horizontal pieces 27 protruding forward from the vertical pieces 26. The vertical pieces 26 are fixed in abutting contact with the building frame wall 70 without any gaps, and the horizontal pieces 27 include support surfaces 27g that support the underside of the eaves plate 11 and slope upward toward the front, as well as a gutter groove 27c formed at the rear end 11a of the eaves plate 11. With this configuration, there are no gaps between the vertical pieces 26 and the building frame wall 70, making it difficult for rainwater and other elements to penetrate, preventing deterioration of the building frame due to water damage. Furthermore, rainwater flowing down the front of the vertical pieces 26 can be caught by the gutter groove 27c formed in the horizontal pieces 27, preventing the building frame from becoming wet.

[0063] In addition, the base frame 20 includes a base angle 21 that supports the upper surface of the eaves plate 11, and the vertical piece 26 includes a locking piece 26a that protrudes forward to lock the base angle 21, with the upper surface of the locking piece 26a sloping downward as it approaches the front. Therefore, even if water seeps inside the base frame 20, it can be diverted forward and will not flow toward the building frame. This prevents the building frame from getting wet.

[0064] Furthermore, a support piece 26b protrudes from the vertical piece 26, against which the rear end 11a of the eaves plate 11 can abut, and the upper surface of the support piece 26b slopes downward as it approaches the front. Therefore, even if water seeps inside the base frame 20, it can be diverted forward and will not flow toward the building frame. This prevents the building frame from getting wet.

[0065] Furthermore, a positioning protrusion 26c that protrudes vertically above the gutter groove 27c is formed at the tip of the support piece 26b, and the rear end 11a of the eaves plate 11 can be abutted against the positioning protrusion 26c. Therefore, by abutting the rear end 11a of the eaves plate 11 against the positioning protrusion 26c, the eaves plate 11 can be attached to a predetermined position. Furthermore, because the rear end 11a of the eaves plate 11 is positioned vertically above the gutter groove 27c and a gap can be formed between the rear end 11a of the eaves plate 11 and the gutter groove 27c, water discharged from inside the eaves plate 11 can be smoothly flowed into the gutter groove 27c.

[0066] Moreover, the eaves plate 11 is formed by joining multiple eaves materials 12 in the width direction W, and the underside of the eaves materials 12 is formed with a notch 12b to drain water that adheres to the joint between adjacent eaves materials 12. By forming this notch 12b, even if water droplets that adhere to the joint between the eaves materials 12 try to rise toward the tip of the eaves material 12 due to capillary action, the movement of such water droplets can be blocked.

[0067] Furthermore, the eaves plate 11 is formed with a mounting hole 12c that penetrates vertically, and a drain part 31 that discharges water downward is attached to the mounting hole 12c. Therefore, rainwater that flows along the upper surface of the eaves plate 11 toward the building frame can be discharged by the drain part 31.

[0068] In addition, side end gutters 68 are provided on both sides of the eaves plate 11, and the inside corners 68b of the side end gutters 68 are rounded, and elongated drainage holes 68a are formed near the rear ends of the side end gutters 68 so as to overlap the rounded inside corners 68b. As a result, rainwater that has flowed along the side end gutters 68 toward the building frame can be drained from the drainage holes 68a. Furthermore, because the drainage holes 68a are formed as elongated holes so as to overlap the rounded inside corners 68b, water is less likely to pool in the inside corners 68b, allowing for efficient drainage. [Explanation of symbols]

[0069] 10 Building eaves 11 Eave board 11a Rear end 11b Bottom end 12 Eave material 12a Wood grain pattern 12b Notch 12c mounting hole 12d Positioning shape 13 Intermediate eaves 14 Left eaves 15 Right eaves 20 base frame 20a mounting bolt 20b Mounting nut 21 Base Angle 21a Hook part 21b Arm part 21c Mounting part 21d Cover engagement portion 22 Eaves fixing device 23 Base cover 24 Base cover screws 25 Base lid 26 Vertical Piece 26a Locking piece 26b Support piece 26c Positioning protrusion 26d Cover mounting piece 27 Horizontal piece 27a Gutter front wall 27b Gutter back wall 27c Gutter 27d Drain hole 27e Side gutter locking part 27f Bracket engagement part 27g support surface 27h Protrusion 28 Tip Frame 28a Tip frame screw 29 Tip cover 29a Tip cover screw 30 Tip cover 31 Drain section 32 Drainage member 32a Back wall 32b side wall 32c Bending part 33 Drain cover member 33a hole 33b Bis 35 Horizontal gutter bracket 35a Flat plate part 35b Rear end engagement part 35c engagement recess 35d Gutter support piece 36 Horizontal Gutter 37 Gutter Cover 37a Lid hole 38 Gutter cover 39 Downpipe 40 Upper plate 41 Lower plate part 42 Side wall 43 Intermediate wall 50 1st joint 51 1st upper protrusion 51a Rotating shaft 52 First side wall 52a Arc part 52b Guide groove 52c Slope 52d Straight section 53 1st lower protrusion 53a Flat plate part 53b Rising part 53c curved piece 54 Intermediate gutter section 60 Second joint 61 2nd upper protrusion 61a Rotating receiver 62 Second side wall 62a Support groove 63 Second lower protrusion 63a Standing section 64 Secondary gutter section 68 Side end gutter section 68a Drain hole 68b Inside corner 68c sealing material 68d End 70 Wall W width direction D Depth direction H Height direction

Claims

1. A base frame attached to the building frame, an eave plate supported by the base frame; Equipped with When the horizontal direction in which the eaves plate protrudes is the front and the building frame side as seen from the eaves plate is the rear, The base frame includes a vertical piece fixed to a wall surface of a building skeleton and a horizontal piece protruding forward from the vertical piece, The vertical pieces are fixed in a state of abutting tightly against the wall surface of the building skeleton, The horizontal piece includes a support surface that supports the lower surface of the eaves plate so as to slope upward toward the front, and a gutter groove formed at the rear end position of the eaves plate, A base angle is provided to support the upper surface of the eave plate, The vertical piece includes a locking piece that protrudes forward to lock the base angle, The upper surface of the locking piece is inclined downward as it goes forward. Eaves for buildings.

2. A base frame attached to the building frame, an eave plate supported by the base frame; Equipped with When the horizontal direction in which the eaves plate protrudes is the front and the building frame side as seen from the eaves plate is the rear, The base frame includes a vertical piece fixed to a wall surface of a building skeleton and a horizontal piece protruding forward from the vertical piece, The vertical pieces are fixed in a state of abutting tightly against the wall surface of the building skeleton, The horizontal piece includes a support surface that supports the lower surface of the eaves plate so as to slope upward toward the front, and a gutter groove formed at the rear end position of the eaves plate, A support piece is formed protruding from the vertical piece, against which the rear end of the eave plate can abut, The upper surface of the support piece is inclined downward as it goes forward. Eaves for buildings.

3. A positioning protrusion is formed at the tip of the support piece, protruding vertically above the gutter groove, The rear end of the eave plate can be abutted against the positioning protrusion. The canopy for a building according to claim 2.

4. A base frame attached to the building frame, an eave plate supported by the base frame; Equipped with When the horizontal direction in which the eaves plate protrudes is the front and the building frame side as seen from the eaves plate is the rear, The base frame includes a vertical piece fixed to a wall surface of a building skeleton and a horizontal piece protruding forward from the vertical piece, The vertical pieces are fixed in a state of abutting tightly against the wall surface of the building skeleton, The horizontal piece includes a support surface that supports the lower surface of the eaves plate so as to slope upward toward the front, and a gutter groove formed at the rear end position of the eaves plate, The eaves plate is formed by joining a plurality of eaves materials in the width direction, A notch is formed on the lower surface of the eave member at the joint between the adjacent eave members. Eaves for buildings.

5. A base frame attached to the building frame, an eave plate supported by the base frame; Equipped with When the horizontal direction in which the eaves plate protrudes is the front and the building frame side as seen from the eaves plate is the rear, The base frame includes a vertical piece fixed to a wall surface of a building skeleton and a horizontal piece protruding forward from the vertical piece, The vertical pieces are fixed in a state of abutting tightly against the wall surface of the building skeleton, The horizontal piece includes a support surface that supports the lower surface of the eaves plate so as to slope upward toward the front, and a gutter groove formed at the rear end position of the eaves plate, The eaves plate is formed with a mounting hole penetrating vertically, A drain member for discharging water downward is attached to the mounting hole. Eaves for buildings.

6. A base frame attached to the building frame, an eave plate supported by the base frame; Equipped with When the horizontal direction in which the eaves plate protrudes is the front and the building frame side as seen from the eaves plate is the rear, The base frame includes a vertical piece fixed to a wall surface of a building skeleton and a horizontal piece protruding forward from the vertical piece, The vertical pieces are fixed in a state of abutting tightly against the wall surface of the building skeleton, The horizontal piece includes a support surface that supports the lower surface of the eaves plate so as to slope upward toward the front, and a gutter groove formed at the rear end position of the eaves plate, Side end gutters are provided on both sides of the eave plate, The inside corner of the side end gutter portion is rounded, A drain hole having an elongated shape is formed near the rear end of the side end gutter portion so as to overlap with the front corner portion of the R-shape. Eaves for buildings.

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