pergola

Abstract

To provide a pergola with a roof that can reduce rain leakage from the roof. [Solution] A pergola in which the roof is erected between front and rear beams 3 with multiple louvers 8 that are long in the front-to-back direction and adjacent to each other on the left and right. The louvers 8 are shaped like an ∩ with one half side 8c in the left-to-right width direction bulging upward, and a U with the other half side 8d bulging downward, forming a fallen S shape with the tip of one half positioned higher than the tip of the other half. The louvers 8 are inclined so that they are low in the front and high in the rear, and the adjacent tips of one half and the other half are arranged so that they overlap with a gap between them above and below, thereby reducing rainwater falling into the pergola 1 and allowing it to fall to the ground from the rear edge.

Description

[Technical Field]

[0001] This invention relates to the technical field of pergolas with roofs made of louvers. [Background technology]

[0002] Today, covered pergolas are sometimes erected to provide shade in sunny outdoor locations such as parks, gardens, and bus stops. Such pergolas generally consist of four pillars erected at four angles (front, back, left, and right), beams connecting the upper edges of the pillars, and a roof attached to the beams. However, the roof is not a single plate that is completely sealed to prevent rain from falling, but rather a pergola with a plurality of long louvers (slats) installed between opposing beams (for example, between the front and rear beams) and arranged at an angle so that one end in the width direction is lower, resulting in a pergola with a light-blocking, breathable roof that provides a refreshing feeling (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2025-14291 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the roof portion of the conventional pergola is inclined so that one end of the louvers in the width direction is lower. Therefore, when it rains, rainwater that falls on the louvers turns into droplets and runs down the other end of the louvers in the width direction, at the lower sloping edge, into the pergola. As a result, it has to be said that the roof portion of the pergola has almost no rain protection function, and this problem is the issue that the present invention aims to solve. [Means for solving the problem]

[0005] The present invention was created in view of the above-mentioned circumstances and with the aim of solving these problems. The invention of claim 1 relates to a pergola comprising four pillars erected at the front, rear, left and right, beams on the front, rear and left sides provided between the upper end edges of the opposing pillars, and a roof section provided on the beams, the roof section being constructed by erecting a plurality of louvers adjacent to each other on the left and right between the front and rear beams, the front beams being configured so that the front beams are higher than the rear beams, and the louvers have an ∩ shape with one half of the side in the left and right width direction bulging upward and the other half of the side in the left and right width direction bulging downward. The louvers are configured to have a U-shape bulging out to the sides, with the tip of one half of one side positioned higher than the tip of the other half of the other side, forming a fallen S-shape; the louvers are installed between the front and rear beams with a gap between adjacent louvers that is narrower than the left-right width of the louvers, so that the louvers are inclined in the front-to-back direction so that the rear beam is lower than the front beam, and the tip of one half of an adjacent louver is adjacent to the tip of the other half of the adjacent louver in an overlapping state with a gap between them above and below. The invention of claim 2 is a pergola as described in claim 1, characterized in that the louvers are installed between the front and rear beams by attaching the top portion of the ∩-shaped half-side portion in a hanging manner to the underside of the front and rear side beams. The invention of claim 3 is a pergola according to claim 2, characterized in that the front and rear end edges of the louvers extend further in the front-to-rear direction than the front and rear beams. The invention of claim 4 is a pergola described in claim 2, characterized in that the louvers are made of a hollow tubular material with an upper plate portion and a lower lower portion, and an attachment groove portion is formed at the top portion of one half side portion provided on the upper plate portion for attaching the louvers in a hanging manner to the lower portion of the front and rear beams. The proposed claim 5 is a pergola as described in claim 4, characterized in that the mounting groove portion is a long groove that is long in the front-to-back direction, and a groove entrance portion is formed on the upper surface where the groove width is narrower than the inside of the groove, and the heads of bolts hanging down from the undersides of the front and rear side beams with gaps are engaged in the groove entrance portion in a state where they can slide in the front-to-back direction. The invention of claim 6 is a pergola as described in claim 1, characterized in that between at least one of the remaining front and rear or left and right pillars, excluding the space between the front left and right pillars, multiple louvers are erected in a state where they are erected in the width direction and adjacent to each other in the vertical direction. [Effects of the Invention]

[0006] By using the device of claim 1, the roof of the pergola is constructed using fallen S-shaped louvers, but in this case the louvers are installed on front and rear beams with the front beam set higher than the rear beam, with adjacent louvers spaced apart at a distance narrower than the left-to-right width of the louvers.As a result, the installed louvers are inclined in the front-to-back direction with the rear beam side lower than the front beam side, and the tip portion of one half side is overlapped with the tip portion of the other half side of the adjacent louver with a gap above and below. As a result, of the rainwater that falls on the louvers, the rainwater that is closer to the tip of the one half than the top of the one half flows down from the tip edge of the one half to the other half of the adjacent louver that overlaps with a gap below, and flows rearward along the slope of the louver together with the rainwater that fell from the top of the one half to the other half, and then flows down from the rear edge to the ground, thereby preventing or reducing rainwater from flowing down into the pergola. By adopting the invention of claim 2, the louvers are attached in a suspended manner to the underside of the front and rear beams at the top portion of one half of the ∩-shaped section, and are thus erected on the front and rear beams. As a result, the front and rear beams are hidden above the roof and are difficult to see, creating the impression of a suspended ceiling without beams and improving the appearance. By adopting the invention of claim 3, the front and rear end edges of the louvers extend further in the front-to-rear direction than the front and rear beams, so that rainwater flowing down from the louvers flows down from the rear end edges, which are behind the rear beam, thereby providing a more effective shelter from the rain. By using the device of claim 4, the louver is made up of a hollow tubular material having an upper piece and a lower piece, and an attachment part for attaching the louver in a suspended state to the underside of the front and rear side beams is formed at the top part of one half side portion provided on the upper piece.As a result, the louver is hollow and has a high heat-shielding effect, but the louver can be easily and reliably attached in a suspended state to the front and rear side beams by the attachment part provided on the upper piece. By adopting the proposal of claim 5, the mounting groove portion is a long groove that is long in the front-to-rear direction and has a narrow groove entrance portion formed on the upper surface, and by using a bolt whose head is locked and prevented from coming out by the groove entrance portion, the louvers can be mounted easily and reliably, thereby improving workability. By adopting the invention of claim 6, the louvers are installed not only on the roof portion but also between at least one of the front and rear, left and right support columns excluding the front left and right support columns. As a result, in addition to the shading and ventilation effects provided by the louvers installed not only on the roof portion but also between the support columns, it is possible to expect protection from strong winds and rain. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a perspective view of a pergola. [Figure 2] FIG. 1 is a front view of a pergola. [Figure 3] FIG. 1 is a side view of a pergola. [Figure 4] FIG. 1 is a plan view of a pergola. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. 4 is a side view showing the installation state of the louvers. [Figure 8] (A) and (B) are a side view and a perspective view of the louver. [Figure 9] FIG. 10 is an explanatory diagram showing the state of rainwater flowing down. [Figure 10]FIG. 10 is a side view of a pergola showing a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] The following describes an embodiment of the present invention with reference to the drawings. In the drawings, the reference numeral 1 denotes a pergola. The pergola 1 is composed of four upright posts 2, four beams (upper horizontal frames) 3 and 4, which are provided between the upper edges of the posts 2 facing each other in the front, rear, and left and right directions, and a roof 5 provided on the front and rear beams 3.

[0009] The pillars 2 are rectangular tubular and erected from foundations 2a buried in the ground below the ground surface (floor surface) F. Connecting fittings 6 for connecting and attaching the front-rear and left-right beams 3, 4 are attached to the mutually opposing inner left-right side surfaces 2b and front-rear side surfaces 2c of the upper edge of each pillar 2, and the front-rear and left-right beams 3, 4 are connected and attached via the connecting fittings 6. Of these beams 3, 4, the two front and rear beams 3 (3F, 3R) on both the front and rear sides are attached via the connecting fittings 6 to the mutually opposing inner left-right side surfaces 2b of the upper edge of the left and right pillars 2, with the front beam 3F at a higher position and the rear beam 3R at a lower position, while the two left and right beams 4 are attached via the connecting fittings 6 to the mutually opposing inner front-rear side surfaces 2c of the front and rear pillars 2, so that they are at the same height as the front beam 3a.

[0010] Specifically, the connecting fitting 6 is L-shaped and comprises one piece 6a that is fastened to the upper edge of the inner side surface portion 2b in the left-right direction and the inner side surface portion 2c in the front-to-back direction of the support 2 via a bolt 7, and another piece 6b that extends from the inner side surface portion 2b in the left-to-right direction and the inner side surface portion 2c in the front-to-back direction. In contrast, the front, rear, left and right beams 3, 4 are open on the inside in the front-to-back and left-to-right directions and are U-shaped with upper and lower leg pieces 3a, 3b and a spanning piece 3c.The spanning piece pieces 3c, 4c are placed against the other piece 6b of the connecting fitting 6 from the outside in the front-to-back and left-to-right directions and are fastened to the other piece 6b via bolts 7, so that they can be attached between the posts 2. In this case, the front and rear beams 3F, 3R are set to be attached at a low position so that the rear beam 3R has a slope of, for example, 2% relative to the front beam 3F.

[0011] Of the front, rear, left and right beams 3 (3F, 3R) and 4 attached to the support 2 in this manner, louvers 8 are installed between the front beam 3F and the rear beam 3R. The louvers 8 are made of long materials that are long in the front-to-back direction and narrow in the left-to-right direction, and the front and rear end edges 8i, 8j extend beyond the front beam 3F and the rear beam 3R in the front-to-back direction, so that these extending portions function as so-called "eaves" and are attached to the undersides of the front and rear beams 3F, 3R.

[0012] Specifically, the louver 8 is formed into a long shape by molding a material such as a metal such as aluminum or a hard resin material, but the louver 8 in this embodiment has an upper piece 8a and a lower piece 8b, and is formed as a hollow tubular material in which the left and right tip edges of the upper and lower pieces 8a, 8b are connected together. In this case, the louver 8 has one half side 8c curved upward in an ∩ shape in the left-right direction, and the other half side 8d curved downward in a U shape, and the left-right tip edge 8ca of the one half side 8c is formed in a fallen S shape that is positioned higher than the tip edge 8da of the other half side 8d.

[0013] Furthermore, the louver 8 is configured so that reinforcing pieces 8e, 8f, and 8g are provided at appropriate intervals in the left-right direction to connect and reinforce the upper and lower hollow cylindrical pieces 8a and 8b, respectively, thereby reinforcing the louver 8. Of the reinforcing pieces 8e, 8f, and 8g, the reinforcing pieces 8e and 8g on both the left and right sides are provided with screw pockets 8ea and 8ga, and the front and rear end edges 8i and 8j of the louver 8 can be sealed by attaching cap material 9 that is placed against the front and rear end edges 8i and 8j of the louver 8 with screws.

[0014] Furthermore, at the top portion of the upper plate material 8a on one half side portion 8c of the louver 8, a concave groove-shaped mounting groove portion 8h is formed for hanging the louver 8 from the lower leg portion 3b of the front and rear beam materials 3F, 3R. This mounting groove portion 8h has a dovetail shape with the inside of the lower groove being wider in the left-right direction and the upper groove entrance portion 8ha being narrower, and is configured so that the bolt head 10a of the bolt 10 for attaching the louver 8 to the front and rear beam material 3 is engaged in the groove entrance portion 8ha in a non-slip manner and can be inserted and assembled into the mounting groove portion 8h so as to be freely movable in the front and rear directions.

[0015] On the other hand, a plurality of mounting holes 3d are drilled in the lower leg portions 3b of the front and rear beam members 3F, 3R at a left-right interval X narrower than the left-right width W of the louver 8 (W>X). The louver 8 is positioned in the fore-and-aft direction on the underside of the lower leg piece 3b and attached from below, and the threaded portion 10b of the bolt 10 is inserted into the mounting hole 3d from below and fastened with a nut 10c, so that the louver 8 can be attached in a suspended manner to the front and rear beam members 3F, 3R.

[0016] The louvers 8 installed in this manner are installed with an installation interval (installation pitch) X that is narrower than the left-right width W of the louvers 8, so that the tip side portion 8ca of one half side portion 8c of adjacent louvers 8 facing each other and the tip side portion 8da of the other half side portion 8d of adjacent louvers 8 are arranged in an overlapping state with a difference width Y (=WX) with a gap between them above, with the tip side portion 8ca of the one half side portion 8c positioned on top.

[0017] Rainwater Z that falls on the one-half side tip edge 8ca portion of one-half side portion 8c of the louver 8 from the top portion flows along the arc of the ∩ shape toward the one-half side tip edge 8ca, falls from the one-half side tip edge 8ca onto the other-half side portion 8d of the adjacent louver 8 that overlaps with it with a gap below, and joins with rainwater Z that falls on the other end side in the left-right direction from the top portion of the one-half side portion 8c at the other-half side portion 8d of the adjacent louver 8, and is then guided by the front-to-back slope of the louver 8 and falls from the rear edge 8j to the ground F.

[0018] In this embodiment configured as described above, the roof portion 5 of the pergola 1 is configured as a plurality of fallen S-shaped louvers 8 arranged in the left-right direction. In this case, the louvers 8 are installed on the front and rear beams 3F, 3R, with the front beam 3F set higher than the rear beam 3R, with adjacent louvers 8 spaced apart at a distance X narrower than the left-right width W of the louvers 8. As a result, the installed louvers 8 are inclined in the front-to-rear direction with the rear beam 3R side lower than the front beam 3F side, and are configured such that the tip edge 8ca of one half side portion 8c is overlapped (laminated) with a gap between the top and bottom relative to the tip edge 8da of the other half side portion 8d of the adjacent louver 8. For this reason, of the rainwater that falls on the louvers 8, the rainwater Z that is closer to the one-half tip edge 8ca than the top portion of the one-half side portion 8c flows down from the one-half tip edge 8ca and is received by the other half side portion 8d of the adjacent louver 8 that overlaps with the gap below, and then flows rearward along the slope of the louvers 8 together with the rainwater Z that falls on the other half side 8d side than the top of the one-half side 8c, and then flows down from the rear edge 8j to the ground F, thereby preventing or reducing rainwater from flowing down into the pergola.

[0019] In this case, the louver 8 is erected on the front and rear beams 3F, 3R with the top portion of the ∩-shaped half side portion 8c attached in a suspended manner to the lower leg portion 3b of the front and rear side beams 3F, 3R.As a result, the roof portion 5 is difficult to see as the front and rear beams 3F, 3R are hidden above the roof portion 5, creating the impression of a suspended ceiling without these beams 3F, 3R, improving the appearance. Furthermore, the front and rear edge portions 8i, 8j of the louvers 8 extend further forward and backward than the front and rear beam portions 3F, 3R to form eaves, which effectively restricts rainwater Z that falls on the louvers 8 from falling into the pergola 1, and instead flows down from the rear edge portion 8j, which is behind the rear beam member 3R, thereby providing a more effective shelter from the rain.

[0020] Furthermore, the louvers 8 are formed as hollow tubular members having an upper plate member 8a and a lower portion 8b, and an attachment groove portion 8h is formed at the top portion of one half side portion 8c provided on the upper and lower portions 8a, for attaching the louvers 8 in a suspended state to the underside portions of the front and rear side beam members 3F, 3R. As a result, the louvers 8 are hollow and have a high heat-shielding effect, and the louvers 8 can be easily and reliably attached in a suspended state to the front and rear side beam members 3F, 3R by the attachment groove portion 8h provided in the upper plate member 8a. In this case, the mounting groove portion 8h is a long groove that is long in the front-to-rear direction, with a narrow groove entrance portion 8ha formed on the upper surface, and by using a bolt 10 whose bolt head 10a is locked and prevented from coming out by the groove entrance portion 8ha, the louver 8 can be mounted easily and reliably, thereby improving workability.

[0021] Of course, the present invention is not limited to the above-described embodiments. For example, as in the second embodiment shown in Figure 10, the louvers 8 can be installed not only on the roof portion 5 but also between at least one of the front and rear, left and right support columns 2, excluding the space between the front left and right support columns 2. In this case, in addition to the shading and ventilation effects provided by the louvers 8 installed not only on the roof portion 5 but also between the support columns 2, it is possible to expect the effect of preventing strong winds and rain from blowing in. Furthermore, the surface of the louver 8 (the surface of at least one of the upper and lower plate members 8a, 8b) may be patterned by applying a process such as blasting, roulette processing, etching, or alumite processing. [Industrial Applicability]

[0022] The present invention can be used as a pergola with a roof made of louvers. [Explanation of symbols]

[0023] 1. Pergola 2 pillars 3 Front and rear beams 3d mounting slot 3F front beam material 3R rear beam material 4Left and right beam materials 5 Roof 6 Connecting fittings 8 louvers 8a Upper plate material 8b Lower plate 8c one half side 8ca Tip edge 8d Other side 8da Tip edge 8h Mounting groove 8ha ditch entrance 8i, 8j front and rear edges 10 volts 10a bolt head W Louver width X Left and right spacing of mounting holes

Claims

1. The structure comprises four support columns erected on the front, back, left and right sides, beam members on the front, back, left and right sides provided between the upper end edges of the opposing support columns, and a roof portion provided on the beam members, In a pergola, the roof portion is configured by a plurality of louvers that are long in the front-rear direction and are adjacent to each other on the left and right sides and are installed between the front and rear beams, The front and rear beam members are configured so that the front beam member is higher than the rear beam member, The louvers are configured such that one half of the side in the left-right width direction is bulged upward in a ∩ shape, and the other half of the side is bulged downward in a U shape, and the tip of one half of the side half is positioned higher than the tip of the other half of the side half, forming a fallen S shape; The louvers are installed between the front and rear beams with the adjacent louvers spaced apart at a distance narrower than the left-right width of the louvers. This pergola is characterized in that the louvers are inclined in the front-to-back direction so that the rear beam side is lower than the front beam side, and the tip portion of one half of an adjacent louver is adjacent to the tip portion of the other half of an adjacent louver in an overlapping state with a gap between them above and below.

2. 2. The pergola according to claim 1, wherein the louvers are installed between the front and rear beams by attaching the top portion of the ∩-shaped half portion to the underside of the front and rear beams in a suspended manner.

3. 3. The pergola according to claim 2, wherein the front and rear end edges of the louvers extend further in the front-rear direction than the front and rear beam members.

4. The louver is composed of a hollow tubular member having an upper plate portion and a lower portion, 3. A pergola according to claim 2, characterized in that an attachment groove is formed at the top of one half side portion of the upper plate portion for attaching the louvers in a suspended state to the lower portions of the front and rear beams.

5. A pergola as described in claim 4, characterized in that the mounting groove portion is a long groove that is long in the front-to-back direction, and a groove entrance portion is formed on the upper surface where the groove width is narrower than the interior of the groove, and the heads of bolts hanging down from the undersides of the front and rear side beams with gaps are engaged in the groove entrance portion while sliding in the front-to-back direction.

6. A pergola as described in claim 1, characterized in that between at least one of the remaining front and rear, left and right support posts excluding the front left and right support posts, multiple louvers are installed, standing upright in the width direction, adjacent to each other in the vertical direction.

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