Building eaves

Abstract

To provide a building eaves that further facilitates work of joining eaves materials.SOLUTION: Adjacent eaves materials 12 are joined to each other by engaging a first joint portion 50 provided on one side with a second joint portion 60 on the other side. The first joint portion 50 comprises an arc-shaped guide groove 52b and a turning shaft 51a positioned above the guide groove 52b. The second joint portion 60 comprises a turning receiving portion 61a that can support the turning shaft 51a from below and can be inserted into the guide groove 52b, and the turning receiving portion 61a can rotatably support the mounted turning shaft 51a. The guide groove 52b can rotatably support the inserted turning receiving portion 61a.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a building eaves that is attached to the eaves of a building, and more particularly to a building eaves in which a plurality of eaves members are connected in the width direction to form an eaves plate. [Background technology]

[0002] The present applicant has proposed a building eaves according to Patent Document 1. This building eaves can be joined by simply pressing adjacent eaves materials together in a substantially horizontal direction, making it easy to join the eaves materials. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-95889 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the configuration described in Patent Document 1 above, there are cases where the engagement does not go smoothly due to intersections or deformations between the components, or where the engagement is too stiff to be performed by hand alone, requiring the use of tools. Therefore, an object of the present invention is to provide a building eave that makes it easier to join eave materials. [Means for solving the problem]

[0005] In order to solve the above-mentioned problems, the present invention provides a building eave in which multiple eave materials are joined in the width direction to form an eave plate, wherein adjacent eave materials are joined to each other by engagement between a first joint provided on one side and a second joint provided on the other side, the first joint having an arc-shaped guide groove and a pivot shaft portion arranged above the guide groove, the second joint having a pivot receiving portion that can support the pivot shaft portion from below and that can be inserted into the guide groove, the pivot receiving portion being able to rotatably support the pivot shaft portion placed on it, and the guide groove being able to rotatably support the inserted pivot receiving portion. [Effects of the Invention]

[0006] As described above, the present invention relates to adjacent eave members that are joined together by engaging a first joint provided on one of the eave members with a second joint provided on the other. The first joint includes an arc-shaped guide groove and a pivot shaft portion disposed above the guide groove. The second joint includes a pivot receiving portion that can support the pivot shaft portion from below and that can be inserted into the guide groove. The pivot receiving portion can rotatably support the placed pivot shaft portion, and the guide groove can rotatably support the inserted pivot receiving portion. This configuration allows adjacent eave members to be easily joined together by rotating them relative to each other during construction of the building eave.

[0007] For example, adjacent eave members can be easily joined by first placing the pivot shaft on the pivot receiver and then rotating the eave member on the first joint side around the pivot shaft. Alternatively, adjacent eave members can be easily joined by inserting the pivot receiver into the guide groove and then rotating the eave member on the second joint side.

[0008] The work is easy because the pivot shaft can be placed on the pivot receiving part (or the pivot receiving part can be inserted into the guide groove) while being visually checked from above. Also, because the eaves materials can be joined by rotation, the work can be easily done by one worker even with long eaves materials. [Brief explanation of the drawings]

[0009] [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 underside (without gutters). [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] 10 is a diagram showing a first bonding portion and a second bonding portion according to Modification 1. FIG. [Figure 11] 10A is a front view of a left eave member and FIG. 10B is a front view of a right eave member according to a second modified example. [Figure 12] FIG. 10 is an external view of a building eaves according to a second modification. [Figure 13] 10A and 10B are diagrams illustrating engagement of the eave members according to the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] 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).

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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).

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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).

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] As shown in FIG. 13, the first side wall portion 52d according to this embodiment includes a linear portion 52d between the guide groove 52b and the inclined portion 52c. The linear portion 52d extends vertically with almost no inclination and extends at an angle closer to the vertical than the inclined portion 52c. The linear portion 52d is formed so as not to protrude laterally (toward the right in FIG. 13) beyond the pivot shaft 51a. Furthermore, it is desirable that the width S2 of the linear portion 52d, as viewed vertically, be greater than the width S1 of the inner peripheral surface of the rotation receiving portion 61a. This configuration allows the second joint portion 60 to be inserted into the first joint portion 50 from above with the second joint portion 60 tilted at an angle, without the corner of the base end of the rotation receiving portion 61a getting caught in the guide groove 52b, resulting in smooth insertion, which improves workability.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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 hooking portion 21a is embraced and held by the locking piece 26a. 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.

[0047] 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.

[0048] 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.

[0049] 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 protrusion 27h that protrudes downward 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] (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, and 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. The mounting method is not limited to these, and any method can be selected depending on the material and conditions of the building frame.

[0056] (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.

[0057] (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.

[0058] (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.

[0059] (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.

[0060] (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.

[0061] (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.

[0062] As described above, in the building eaves 10 according to this embodiment, adjacent eaves members 12 are joined together by engaging the first joint 50 on one side with the second joint 60 on the other side. The first joint 50 includes an arc-shaped guide groove 52b and a pivot shaft 51a positioned above the guide groove 52b. The second joint 60 includes a pivot receiver 61a that can support the pivot shaft 51a from below and can be inserted into the guide groove 52b. The pivot receiver 61a can rotatably support the placed pivot shaft 51a, and the guide groove 52b can rotatably support the inserted pivot receiver 61a. This configuration allows adjacent eaves members 12 to be easily joined together by rotating them relative to each other during construction of the building eaves 10.

[0063] For example, adjacent eave materials 12 can be easily joined by first placing the pivot shaft 51a on the pivot receiving portion 61a and then rotating the eave material 12 on the first joint portion 50 side around the pivot shaft 51a. Alternatively, adjacent eave materials 12 can be easily joined by inserting the pivot receiving portion 61a into the guide groove 52b and then rotating the eave material 12 on the second joint portion 60 side.

[0064] At that time, the rotation shaft portion 51a can be placed on the rotation receiving portion 61a (or the rotation receiving portion 61a can be inserted into the guide groove 52b) while being visually checked from above, making the work easy. Also, since the eaves material 12 can be joined by rotation, the work can be easily performed by one worker even with long eaves material 12. Furthermore, when it is desired to release the connection, it is only necessary to rotate it in the opposite direction, so that it is easy to perform work such as replacing only a part of the eave material 12, for example.

[0065] Furthermore, the first joint 50 has an arc-shaped curved piece 53c located below the rotation shaft 51a and having its center approximately at the rotation shaft 51a, and the tip of the curved piece 53c is inserted into the interior (support groove 62a) of the second joint 60. With this configuration, not only can the rotation shaft 51a and the guide groove 52b engage with the rotation receiving part 61a, but the number of engagement points can also be increased, providing reinforcement against loads in the up, down, left, and right directions.

[0066] The second joint 60 also has a support groove 62a into which the tip of the curved piece 53c is inserted, and the curved piece 53c is loosely fitted inside the support groove 62a. Therefore, no force is required for joining or removing, and the work can be easily done by one person.

[0067] In addition, the first joint 50 is provided with an intermediate gutter 54 for receiving water that seeps in through the joined joint, and the intermediate gutter 54 can guide the water in the longitudinal direction of the eave material 12. With this configuration, even if rainwater or the like seeps in through the joint on the upper surface of the eave material 12, the water can be received by the intermediate gutter 54, preventing the water from seeping out from the joint on the underside of the eave material 12.

[0068] In addition, the second joint 60 includes a secondary gutter 64 that is arranged to overlap the lower side of the intermediate gutter 54. Therefore, even if water flows outside the intermediate gutter 54, the water can be received by the secondary gutter 64, preventing water from seeping out from the joint on the underside of the eave material 12.

[0069] The first joint 50 also includes a first sidewall 52 that continues below the guide groove 52b. The first sidewall 52 forms an intermediate gutter 54, and the first sidewall 52 includes an inclined portion 52d that slopes inward as it extends downward. The inclined portion 52c allows the pivot receiver 61a to be guided into the guide groove 52b when performing work such as that shown in FIG. 5(b). The inclined portion 52c also increases the capacity to accommodate rainwater and other liquids that have seeped into the eave member 12.

[0070] Furthermore, the first side wall portion 52 is formed so as not to protrude laterally beyond the rotation axis 51a. Therefore, when the second joint portion 60 is inserted into the first joint portion 50, the corner of the base end of the rotation receiving portion 61a does not get caught in the guide groove 52b, improving workability.

[0071] Furthermore, the first joint 50 and the second joint 60 are joined so as to be slidable in the depth direction D of the building eaves 10. Therefore, the eaves plate 11 can be completed simply by sliding the joined eaves material 12, making the construction work easy.

[0072] In addition, an irregular wood grain pattern 12a is formed on the underside of the eaves material 12. By forming the irregular wood grain pattern 12a, the joints of the joined eaves materials 12 can be made less noticeable, making it possible to provide a building eaves 10 with excellent design. In addition, since the wood grain pattern 12a can be formed during extrusion molding, post-processing is not required.

[0073] The configuration of the first joint portion 50 and the second joint portion 60 is not limited to the above, and various configurations are possible. For example, as shown in Fig. 10, a vertical protrusion 53d protruding upward from the middle of the curved piece 53c may be provided, and a locking portion 61b that engages with the vertical protrusion 53d may be provided on the underside of the second upper protrusion 61. In the example shown in Fig. 10, when the first joint portion 50 and the second joint portion 60 are joined together, the vertical protrusion 53d comes into contact with the inner surfaces of the second side wall portion 62 and the upper plate portion 40, stabilizing the engagement.

[0074] Furthermore, in the above-described embodiment, the left eave material 14 and the right eave material 15 are provided with side end gutter portions 68, but this is not limited to this, and as shown in Figures 11 and 12, a left eave material 14' and a right eave material 15' that do not have side end gutter portions 68 may also be used.

[0075] Furthermore, in the above-described embodiment, a building eaves 10 was described in which the eaves have a so-called reverse slope, but this is not limited to this. As shown in Figure 12, the eaves may be horizontal, or the building eaves 10' may have a forward slope (the tip of the eaves slopes downward). [Explanation of symbols]

[0076] 10 Building eaves 10' Canopy 11 Eave board 11a Rear end 11b Bottom end 12 Eave material 12a Wood grain pattern 12b Notch 12c mounting hole 13 Intermediate eaves 14 Left eaves 14' left eaves 15 Right 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 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 part 52d Straight section 53 1st lower protrusion 53a Flat plate part 53b Rising part 53c curved piece 53d vertical protrusion 54 Intermediate gutter section 60 Second joint 61 2nd upper protrusion 61a Rotating receiver 61b Locking part 62 Second side wall 62a Support groove 63 Second lower protrusion 63a Standing section 64 Secondary gutter section 68 Side end gutter section 70 Wall W width direction D Depth direction H Height direction

Claims

1. A building eaves in which a plurality of eaves materials are joined in the width direction to form an eaves plate, The adjacent eave members are joined to each other by engagement between a first joint portion provided on one of the eave members and a second joint portion provided on the other of the eave members, The first joint portion includes an arc-shaped guide groove and a rotation shaft portion disposed above the guide groove, the second joint portion includes a rotation receiving portion that can support the rotation shaft portion from below and can be inserted into the guide groove, The rotation receiving portion can rotatably support the rotation shaft portion placed thereon, The guide groove can rotatably support the inserted rotation receiving portion, the first joint portion includes an arc-shaped curved piece located below the rotation shaft portion and having a center substantially at the rotation shaft portion, The tip of the curved piece is inserted into the second joint portion. Eaves for buildings.

2. the second joint portion has a support groove into which a tip of the curved piece is inserted, The curved piece is loosely fitted into the support groove. The canopy for a building according to claim 1.

3. A building eaves in which a plurality of eaves materials are joined in the width direction to form an eaves plate, The adjacent eave members are joined to each other by engagement between a first joint portion provided on one of the eave members and a second joint portion provided on the other of the eave members, The first joint portion includes an arc-shaped guide groove and a rotation shaft portion disposed above the guide groove, the second joint portion includes a rotation receiving portion that can support the rotation shaft portion from below and can be inserted into the guide groove, The rotation receiving portion can rotatably support the rotation shaft portion placed thereon, The guide groove can rotatably support the inserted rotation receiving portion, The first joint portion includes an intermediate gutter portion for receiving water that seeps in through the joined joint, The intermediate gutter portion can guide water in the longitudinal direction of the eave material. Eaves for buildings.

4. The second joint portion includes a secondary gutter portion arranged below the intermediate gutter portion so as to overlap the secondary gutter portion. The canopy for a building according to claim 3.

5. the first joint portion includes a side wall portion that is continuous with a lower portion of the guide groove, The intermediate trough portion is formed by utilizing the side wall portion, The side wall portion has an inclined portion that slopes inward as it extends downward. The canopy for a building according to claim 3 or 4.

6. The side wall portion is formed so as not to protrude laterally beyond the rotation axis. The canopy for a building according to claim 5.

7. A building eaves in which a plurality of eaves materials are joined in the width direction to form an eaves plate, The adjacent eave members are joined to each other by engagement between a first joint portion provided on one of the eave members and a second joint portion provided on the other of the eave members, The first joint portion includes an arc-shaped guide groove and a rotation shaft portion disposed above the guide groove, the second joint portion includes a rotation receiving portion that can support the rotation shaft portion from below and can be inserted into the guide groove, The rotation receiving portion can rotatably support the rotation shaft portion placed thereon, The guide groove can rotatably support the inserted rotation receiving portion, The first joint portion and the second joint portion are joined so as to be slidable in the depth direction of the building eaves, Eaves for buildings.

8. An irregular wood grain pattern is formed on the underside of the eaves material. The canopy for a building according to any one of claims 1 to 7.

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