Water stop structure around arm in vertical joint

Abstract

To provide a water cut-off structure around an arm in a vertical joint, capable of preventing water leakage to the indoor side, even when the water cut-off structure in the vertical joint is divided by the arm overhanging to the indoor side from an outer column, without restricting an overhang level of the arm.SOLUTION: Inside the vertical L1 25, a first vertical piece 35 of the lower hardware 30 and a third vertical piece 43 of the upper hardware 40 partially overlap each other in the vertical direction to form a primary water cut-off line L2, and a second vertical piece 36 of the lower hardware 30 and a fourth vertical piece 44 of the upper hardware 40 partially overlap each other in the vertical direction to form a secondary water cut-off line joint.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a waterproof structure around a bracket in a vertical joint. [Background technology]

[0002] In conventional buildings, for example, a curtain wall-type fastening method is sometimes used, in which mounting hardware is fixed to exterior wall panels and eaves, balconies, etc. are bolted to the mounting hardware, but in such fastening structures for eaves, etc., the mounting hardware and the eaves, etc. are generally fastened with bolts. However, there is a natural limit to the load that can be supported by bolts, which presents a problem in that the load on the eaves, etc. is easily restricted.

[0003] Therefore, by fixing arms to the building frame and having them extend outdoors, and using the arms to support eaves, balconies, etc., it is possible to increase the load bearing capacity. However, because it is common for the arms to be fixed to the girths between floors, which are components of the building frame, a new problem can arise in that the extension level of the arms is limited to the level of the girths.

[0004] To solve this new problem, instead of joining the arms to the girths between floors, the end of the arms can be joined to the exterior columns, which solves the problem of limiting the arm overhang level. However, because the arms overhang the exterior through the vertical joints between the exterior wall panels lined up on the left and right, the arms can disrupt the watertight structure made up of gaskets or the like placed in the vertical joints, which can lead to new problems such as water leakage to the indoor side at the point where the watertight structure is disrupted.

[0005] For the above reasons, there is a need for a water-stopping structure around the arms at vertical joints that does not restrict the extension level of the arms and can prevent water leakage to the indoor side even when the water-stopping structure at the vertical joints is interrupted by arms that extend from the outer column to the outdoors.

[0006] Patent Document 1 proposes a building in which waterproof brackets are attached to brackets that extend from vertical joints in exterior walls to the outdoors. In this building, the bracket waterproof brackets enter the vertical joints where the brackets extend from the outdoors side to close the vertical joints, and are equipped with a vertical joint closing section that allows water to flow downward between the upper and lower gaskets separated by the bracket, and a bracket fixing section that is fixed to the bracket on the outdoors side of the vertical joint, and the girth section that supports the bracket is covered by the lower side of the exterior wall panel. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Patent No. 7391316 Summary of the Invention [Problem to be solved by the invention]

[0008] According to the building described in Patent Document 1, the waterproof bracket bracket fixing part of the bracket bracket is fixed to the bracket on the outdoor side of the vertical joint, so even though it is a bracket, it does not need to be fixed to the inter-floor water-repellent board, making the inter-floor water-repellent board unnecessary. However, even in this building, because it is based on the bracket being fixed to the girth, the above-mentioned problem of the overhang level of the bracket being limited to the level of the girth is inherent.

[0009] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a water-stopping structure around an arm at a vertical joint that does not restrict the overhang level of the arm and can prevent water leakage to the indoor side even when the water-stopping structure at the vertical joint is interrupted by an arm that overhangs from the outer column toward the indoor side. [Means for solving the problem]

[0010] In order to achieve the above object, one aspect of the waterproof structure around the bracket in the vertical joint according to the present invention is as follows: A waterproof structure is formed around an arm in a vertical joint, in which an arm joined to an exterior column of a building and extending laterally projects outdoors from a vertical joint between exterior wall panels located on the left and right of the arm, and an upper gasket and a lower gasket extend in the vertical direction above and below the arm within the vertical joint, and the waterproof structure is formed around the arm in the vertical joint, a lower metal fitting attached to the arm from below; an upper metal fitting attached to the arm from above, The lower hardware is a first U-shaped piece that is open upward and has a first insertion groove therein into which the arm is inserted from below; a first vertical piece extending laterally from an outdoor end of the first U-shaped piece; and a second vertical piece extending laterally from the indoor end of the first U-shaped piece, wherein one side piece constituting the first U-shaped piece is a horizontal piece extending from the first vertical piece to the outdoor side, The upper metal fittings are: a second U-shaped piece that is open downward and has a second insertion groove formed therein into which the arm is inserted from above; a third vertical piece fitted to a midpoint of the outer periphery of the second U-shaped piece; and a fourth vertical piece located at the indoor end of the second U-shaped piece, the arm, the horizontal piece, and the second U-shaped piece are joined together by inserting bolts into bolt holes provided at positions corresponding to each other, Inside the vertical joint, A portion of the first vertical piece and a portion of the third vertical piece overlap each other in the vertical direction to form a primary watertight line, The second vertical piece and a portion of the fourth vertical piece overlap each other in the vertical direction to form a secondary water blocking line.

[0011] According to this aspect, because the arm is joined to the exterior column of the building, the overhang level of the arm is not limited to the level of the girth, and the arm can be fixed to the desired level of the exterior column and overhang the exterior side. Furthermore, the first vertical piece and the third vertical piece of the upper metal fitting inserted from above the arm and the lower metal fitting inserted from below overlap each other vertically to form a primary watertight line within the vertical joint, and the second vertical piece and the fourth vertical piece overlap each other vertically to form a secondary watertight line within the vertical joint, so that water leakage to the indoor side can be effectively prevented even when the upper gasket and the lower gasket are separated by the arm.

[0012] Rainwater and other water flowing down through the upper gasket, which is separated by the arm, flows downward through the outdoor side of the primary water stop line and the first and second U-shaped pieces between the primary and secondary water stop lines, and then flows further down through the lower gasket.

[0013] The upper and lower gaskets also have a shape that includes a primary water stop line and a secondary water stop line. Therefore, in the vertical joint, in addition to the area where the upper gasket and the area where the lower gasket are located, the primary water stop line and the secondary water stop line are secured by the upper metal fittings and lower metal fittings unit in the area where these are separated by the bracket, so that two continuous water stop lines are formed throughout the entire vertical joint.

[0014] Another aspect of the waterproof structure around the bracket in the vertical joint according to the present invention is as follows: The fourth vertical piece is characterized by having a water receiving portion that receives water flowing down from the upper gasket and directs it to the third vertical piece side.

[0015] According to this aspect, the fourth vertical piece located at the indoor end of the L-shaped piece of the upper metal fitting is equipped with a water receiving portion that receives water flowing down from the upper gasket and directs it to the third vertical piece located on the outdoor side, thereby preventing the flowing water from leaking from the fourth vertical piece that forms the secondary water-stopping line to the indoor side, and allowing the water to flow downward smoothly.

[0016] In another aspect of the waterproof structure around the arm in the vertical joint according to the present invention, The second vertical piece further includes a bottom piece extending laterally below the second vertical piece, and a lower vertical piece extending vertically downward from an end of the bottom piece.

[0017] According to this aspect, a bottom piece extending horizontally and a lower vertical piece extending vertically downward from the end of the bottom piece are further provided below the second vertical piece provided on the indoor side of the lower metal fitting, so that flowing water can be smoothly guided through the bottom piece and the lower vertical piece to the lower gasket.

[0018] In another aspect of the waterproof structure around the arm in the vertical joint according to the present invention, A feature of the present invention is that the bottom piece of the first U-shaped piece has a drain hole at a position on the indoor side of the secondary water stop line to guide downward water that has flowed indoors beyond the secondary water stop line.

[0019] According to this aspect, a water drain hole is provided in the bottom piece of the first L-shaped piece at a position on the indoor side of the secondary water stop line to guide water that has flowed indoors beyond the secondary water stop line downward.Therefore, even if water flows indoors beyond the secondary water stop line, the water can be guided downward through the water drain hole, thereby reliably preventing water leakage (infiltration) into the room.

[0020] In another aspect of the waterproof structure around the arm in the vertical joint according to the present invention, The upper surface of the lower gasket is provided with a notch, The lower vertical piece is fitted into the notch.

[0021] According to this aspect, a notch is provided on the upper surface of the lower gasket and the lower vertical piece is fitted into the notch, so that water flowing downward through the lower vertical piece can be smoothly guided to the lower gasket.

[0022] Another aspect of the waterproof structure around the bracket in the vertical joint according to the present invention is as follows: The arm is characterized in that it is used to support any one of a eaves, a fascia board, a hanging balcony, and an outdoor unit stand.

[0023] According to this aspect, since the arms are fixed to the outer columns and extend indoors, they can support a variety of load-bearing objects, such as eaves, fascia boards, hanging balconies, and outdoor unit stands. [Effects of the Invention]

[0024] As can be understood from the above explanation, the water-stopping structure around the bracket in the vertical joint of the present invention does not limit the extension level of the bracket, and can prevent water leakage to the indoor side even when the water-stopping structure in the vertical joint is interrupted by the bracket extending from the exterior column toward the indoor side. [Brief explanation of the drawings]

[0025] [Figure 1] FIG. 10 is a perspective view showing an example of a water-stopping structure around a bracket in a vertical joint according to an embodiment before it is formed. [Figure 2] FIG. 10 is a perspective view of an example of a waterproof structure around a bracket in a vertical joint according to an embodiment. [Figure 3] FIG. 3 is a view taken along the line III-III in FIG. 2. [Figure 4] FIG. 10 is a perspective view showing the upper side of the lower gasket. DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, an example of a waterproof structure around a bracket in a vertical joint according to an embodiment will be described with reference to the accompanying drawings. Note that in this specification and the drawings, substantially identical components may be designated by the same reference numerals to avoid redundant description.

[0027] [Water-stopping structure around the bracket in the vertical joint according to the embodiment] An example of a waterproof structure around an arm in a vertical joint according to an embodiment will be described with reference to Figures 1 to 4. Here, Figure 1 is a perspective view showing the state before formation of an example of a waterproof structure around an arm in a vertical joint according to an embodiment, and Figure 2 is a perspective view of an example of a waterproof structure around an arm in a vertical joint according to an embodiment. Also, Figure 3 is a view taken along the arrows III-III in Figure 2, and Figure 4 is a perspective view showing the upper side of the lower gasket.

[0028] The waterproof structure 70 around the arm in the vertical joint shown in Figure 2 is a waterproof structure formed around the arm 15 that protrudes to the outdoors from the vertical joint 25 between exterior wall panels 20 located side by side in the width direction of the exterior wall.

[0029] As shown in Fig. 1, which illustrates the state before the waterproof structure 70 is formed, the steel bracket 15 has its end 17 welded to the side of the outer column 10 formed from a square steel pipe, and extends to the outdoors. Here, the outer column 10 may be made of shaped steel material such as an H-beam instead of the square steel pipe shown in the illustration.

[0030] The arm 15 is attached to the exterior side of the building's exterior wall panel 20 and serves to support eaves, a fascia board, a hanging balcony, an outdoor unit stand, etc. (not shown).

[0031] As shown in the example, unlike the conventional mounting configuration in which the arm 15 is joined to the girths between floors that form the building frame, it is joined at any longitudinal position on the side of the exterior column 10, so the extension level of the arm 15 is no longer limited by the level of the girths, and the arm 15 can be fixed to the desired level of the exterior column 10 and extended outdoors.

[0032] Furthermore, since the arms 15 are welded to the highly rigid outer columns 10, a high load can be supported by the arms 15.

[0033] The specific configuration of the exterior wall panel 20 in the illustrated example is omitted from the perspective of making it easier to understand the characteristic configuration of the waterproof structure 70, but one specific example can be one in which the panel has a panel frame made of vertical and horizontal bars made of shaped steel, with exterior materials such as siding boards attached to the outer surface of the panel frame, and the inside of the panel frame filled with insulation material, etc. For example, various design patterns can be applied to the wide surface 21 of the exterior wall panel 20 facing the outdoors.

[0034] A vertical joint 25 is formed between opposing edges 23 of two exterior wall panels 20 located on the left and right sides of the exterior column 10 on the outdoor side, and an arm 15 extending from the exterior column 10 to the outdoor side projects to the outdoor side via the vertical joint 25 with its pair of wide faces 16 facing vertically.

[0035] In Figures 1 and 2, an upper gasket 60A is attached above the arm 15 inside the vertical joint 25, and a lower gasket 60B is attached below the arm 15 (see Figure 3 for both), but these gaskets 60 are not shown in Figures 1 and 2.

[0036] In other words, because the arm 15 extends outside across the vertical joint 25, the gasket, which would normally be arranged continuously from top to bottom inside the vertical joint 25, is divided in the middle by the arm 15.

[0037] This separation of the gasket at the top and bottom of the bracket 15 raises concerns about a decrease in watertightness, as rainwater and other water may leak into the indoor side along the periphery of the bracket 15. The illustrated waterproof structure 70 is a structure that solves this problem.

[0038] In the area of ​​the edge 23 of the exterior wall panel 20 corresponding to the bracket 15, a recess 24 is provided into which the lower metal fitting 30 and the upper metal fitting 40 are fitted.

[0039] That is, the lower metal fittings 30 and the upper metal fittings 40 are installed around the brackets 15 of the vertical joints 25 after the left and right exterior wall panels 20 have been erected, which improves the ease of installation of the lower metal fittings 30 and the upper metal fittings 40. Furthermore, because the lower metal fittings 30 and the upper metal fittings 40 are not attached around the brackets 15 prior to erecting the exterior wall panels 20, there is no risk of the exterior wall panels 20 being erected with the edges 23 having to be properly abutted against the lower metal fittings 30 and the upper metal fittings 40, which would reduce the ease of erecting the exterior wall panels 20.

[0040] As shown in Figure 1, using the left and right recesses 24 around the arm 15, the lower metal fitting 30 is fitted below the arm 15 in the vertical joint 25 in the Y1 direction, and then the upper metal fitting 40 is fitted above the arm 15 in the vertical joint 25 in the Y2 direction.

[0041] Here, the lower metal fitting 30 comprises a first U-shaped piece 31 that is open upward and has a first insertion groove 32 inside that is inserted from below the arm 15, a first vertical piece 35 that is located at the outdoor end of the first U-shaped piece 31 and extends laterally, and a second vertical piece 36 that is located at the indoor end of the first U-shaped piece 31 and extends laterally, and one of the side pieces that make up the first U-shaped piece 31 forms a horizontal piece 33 that extends outdoors from the first vertical piece 35.

[0042] The second vertical piece 36 further includes a bottom piece 37 extending laterally (diagonally) below it, and a lower vertical piece 38 extending vertically downward from an end of the bottom piece 37.

[0043] A water drain hole 39 is provided in the bottom piece 31a of the first U-shaped piece 31 at a position closer to the indoor side than the secondary water blocking line L2 (see FIG. 3).

[0044] On the other hand, the upper metal fitting 40 has a second U-shaped piece 41 that is open downward and has a second insertion groove 42 inside that is inserted from above the arm 15, a third vertical piece 43 that is fitted into the middle of the outer periphery of the second U-shaped piece 41, and a fourth vertical piece 44 that is located at the indoor end of the second U-shaped piece 41.

[0045] The fourth vertical piece 44 is provided with a water receiving portion 45 that receives water flowing down from the upper gasket 60A (see FIG. 3) and guides it to the third vertical piece 43 side.

[0046] The lower hardware 30 and the upper hardware 40 are fitted into the recess 24, and the lower hardware 30 and the upper hardware 40 are assembled so that the second U-shaped piece 41 accommodates the horizontal piece 33. When the lower hardware 30 and the upper hardware 40 are installed in the installation position, the wide surface 16, the horizontal piece 33 and the second U-shaped piece 41 have bolt holes 26, 34 and 46 at their corresponding positions.

[0047] As shown in Figure 2, bolts 50 are inserted into the interconnected bolt holes 26, 34, and 46, and by tightening nuts, etc., the lower metal fittings 30 and the upper metal fittings 40 are joined to the arm 15, forming a watertight structure 70 (a watertight structure around the arm at the vertical joint).

[0048] Figure 4 shows the lower gasket 60B, but the upper gasket (not shown) also has a similar configuration and is a standard rubber member, and specifically, on the left and right sides of a central core material 61, there are provided a pair of flanges 62, another pair of flanges 63, another pair of flanges 64, and another pair of flanges 65, and each pair of flanges 62, 63, 64, 65 is pressed against the left and right small edges 23 to form a primary water-stopping portion 66 and a secondary water-stopping portion 67.

[0049] The lower gasket 60B shown in FIG. 4 has a notch 69 at its upper end into which a part of the lower vertical piece 38 of the second vertical piece 36 of the lower metal fitting 30 fits.

[0050] As shown in Figure 2, when the lower hardware 30 and the upper hardware 40 are assembled, portions of the first vertical piece 35 and the third vertical piece 43 overlap each other vertically, thereby forming a primary water-stopping line L1 together with the primary water-stopping portions 66 of both the upper gasket 60A and the lower gasket 60B, as shown in Figure 3. Furthermore, by portions of the second vertical piece 36 and the fourth vertical piece 44 overlapping each other vertically, a secondary water-stopping line L2 is formed together with the secondary water-stopping portions 67 of both the upper gasket 60A and the lower gasket 60B, as shown in Figure 3.

[0051] As shown in Figures 2 and 3, water flowing downward in the X1 direction through the secondary water-stopping portion 67 of the upper gasket 60A is guided by the water receiving portion 45 to the third vertical piece 43 located on the outdoor side, and then flows further down in the X2 direction, and is guided to the secondary water-stopping portion 67 of the lower gasket 60B via the bottom piece 37 and the lower vertical piece 38.

[0052] Furthermore, as shown in Figure 3, even if water flows into the indoor side beyond the secondary water stop line L2, a water drain hole 39 is provided in the bottom piece 31a of the first U-shaped piece 31 at a position on the indoor side beyond the secondary water stop line L2, so that water can be guided downward in the X3 direction through the water drain hole 39, thereby reliably preventing water from leaking into the indoors.

[0053] In this way, by having the bracket 15 cross the vertical joint 25, even if the upper gasket 60A and the lower gasket 60B are separated, the lower metal fittings 30 and the upper metal fittings 40 are disposed between them in an assembled state, thereby securing the primary watertight portion 66 and the secondary watertight portion 67 of both the upper gasket 60A and the lower gasket 60B, as well as the primary watertight line L1 and the secondary watertight line L2. This forms two continuous watertight lines throughout the entire vertical joint 25, effectively preventing water leakage along the bracket 15 to the indoor side.

[0054] From the above, according to the water-stopping structure 70 around the arm in the vertical joint in the illustrated example, the extension level of the arm 15 is not restricted, and the arm 15 has a high support load to support the object being supported, and even when the water-stopping structure in the vertical joint is interrupted by the arm 15 extending from the outer column 10 toward the indoor side, it is possible to effectively prevent water leakage toward the indoor side.

[0055] It should be noted that the present invention is not limited to the configurations shown here, and other embodiments may be possible in which other components are combined with the configurations described in the above embodiments. In this regard, the present invention can be modified within the scope of the present invention, and can be appropriately determined depending on the application form. [Explanation of symbols]

[0056] 10: Outer pillar 15: Arm 16: Wide surface 17:End 20: Exterior wall panel 21: Wide surface 23: Small amount 24: Recess 25:Vertical joint 30: Lower hardware 31: First U-shaped piece 31a: Bottom piece 32: First insertion groove 33: Horizontal piece (side piece) 34: Bolt hole 35: First vertical piece 36: Second vertical piece 37: Bottom piece 38: Lower vertical piece 39: Water drain hole 40: Upper metal fittings 41: Second U-shaped piece 42: Second insertion groove 43: Third vertical piece 44: 4th vertical piece 45: Water receiving part 46: Bolt hole 50: Bolt 60: Gasket 60A: Upper gasket 60B: Lower gasket 61: Core material 62, 63, 64, 65: Flanges 66: Primary water stop section 67: Secondary water stop section 69: Cut 70:Water-stopping structure (water-stopping structure around the arms in vertical joints) L1: Primary water stop line L2: Secondary water stop line

Claims

1. A waterproof structure is formed around an arm in a vertical joint, in which an arm joined to an exterior column of a building and extending laterally projects outdoors from a vertical joint between exterior wall panels located on the left and right of the arm, and an upper gasket and a lower gasket extend in the vertical direction above and below the arm within the vertical joint, and the waterproof structure is formed around the arm in the vertical joint, a lower metal fitting attached to the arm from below; an upper metal fitting attached to the arm from above, The lower hardware is a first U-shaped piece that is open upward and has a first insertion groove formed therein into which the arm is inserted from below; a first vertical piece located at an outdoor end of the first U-shaped piece and extending laterally; a second vertical piece located at an indoor end of the first U-shaped piece and extending laterally, and one side piece constituting the first U-shaped piece is a horizontal piece extending from the first vertical piece to the outdoor side, The upper metal fittings are: a second U-shaped piece that is open downward and has a second insertion groove formed therein into which the arm is inserted from above; a third vertical piece fitted to a midpoint of the outer periphery of the second U-shaped piece; and a fourth vertical piece located at the indoor end of the second U-shaped piece, the arm, the horizontal piece, and the second U-shaped piece are joined together by inserting bolts into bolt holes provided at positions corresponding to each other, Inside the vertical joint, A portion of the first vertical piece and a portion of the third vertical piece overlap each other in the vertical direction to form a primary watertight line, A watertight structure around a bracket at a vertical joint, characterized in that a portion of the second vertical piece and a portion of the fourth vertical piece overlap each other vertically to form a secondary watertight line.

2. 2. A waterproof structure around a bracket in a vertical joint as described in claim 1, characterized in that the fourth vertical piece has a water receiving portion that receives water flowing down from the upper gasket and directs it to the third vertical piece side.

3. The water-stopping structure around a bracket in a vertical joint as described in claim 1, characterized in that the second vertical piece further has a bottom piece extending horizontally below it and a lower vertical piece extending vertically downward from the end of the bottom piece.

4. A water-stopping structure around a bracket in a vertical joint as described in claim 3, characterized in that a water drain hole is provided at a position on the indoor side of the secondary water-stopping line in the bottom piece of the first U-shaped piece to guide water that has flowed indoors from the secondary water-stopping line downward.

5. The upper surface of the lower gasket is provided with a notch, 5. A waterproof structure around a bracket in a vertical joint according to claim 3, wherein the lower vertical piece is fitted into the notch.

6. 6. A waterproof structure around a bracket in a vertical joint according to claim 5, wherein the bracket is used to support any one of a eaves, a fascia board, a hanging balcony, and an outdoor unit stand.

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