JP4018553B2 - Balcony drainage equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drainage device for a balcony in which members requiring strength such as end beams and front girders are aluminum alloy hollow materials.
[0002]
[Prior art]
Many members that require strength, such as timber beams, front girders, and joists on the balcony, use an aluminum alloy hollow material that is excellent in strength, ease of forming, light weight, and appearance. On the other hand, since the aluminum alloy hollow material has high thermal conductivity, the outside air temperature decreases in the morning and evening, especially in spring, summer, autumn, etc., dew condensation water may be generated in the hollow portion.
[0003]
There are two types of balconies that protrude from the building frame: a pillar type that supports the tip corner of the balcony by a pillar standing on the ground, and a no-column type that does not have such a pillar. In either case, a drainage device is provided to guide and drain rainwater that has fallen on the deck from the bottom surface of the deck without being dropped.
[0004]
The drainage device on the balcony has a rain gutter (rear) provided on the joist hanging rainwater flowing out from the driver side end (rear end) on the top surface of the deck or a rain gutter (rear surface) provided on the rear end of the deck top surface ), Then let it flow down to the rain gutter (side gutter) provided on the girder, receive rainwater flowing out from the end side (side edge) of the top surface of the deck on the side girder, and the front girder side of the top surface of the deck Rainwater flowing out from the end (front end) is received by a rain gutter (front gutter) provided at the front end of the top surface of the deck, joined from the front gutter to the side gutter, One that drains to the ground via a rainwater guide member such as a vertical shaft or a water guide chain (see Patent Document 1), a collecting rod is provided at a position one level lower than the side rod of the fuselage, and further collects rainwater collected on both sides There is known one that collects in a collecting rod and drains it to the ground via a rainwater guiding member (see Patent Document 2). Also, all the rainwater that has flowed down from the deck side end to the side gutter is gathered on the front gutter provided in the front girder and drained from the front gutter to the ground via the rainwater guiding member (Patent Document 3) Is also known.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 58-40618
[Patent Document 2]
JP-A-8-209870
[Patent Document 3]
JP-A-12-27383
[0006]
In particular, a pillarless balcony can be installed with the top surface of the deck, and therefore the girder, tilted so that the front girder side is slightly higher than the joisting side (hereinafter referred to as “upward”). is there. The reason is that the front spar side is somewhat lowered due to aging or deterioration, and is designed to be horizontal when it is lowered in anticipation of it. If it is installed horizontally from the beginning, the rain gutter of the girder will incline so that the front girder side is lower than the joisting side due to secular change or deterioration (this is hereinafter referred to as the first descent).
[0007]
[Problems to be solved by the invention]
However, the conventional deck is not provided with any drainage means for the condensed water generated in the hollow portion of each component. At best, a cap made of resin is fitted into the hollow portion at the end portion on the outdoor side of the end beam. And since the cap does not have water tightness, in the conventional balcony, dew condensation water may drip below the balcony from the end in the longitudinal direction of a metal member having a hollow portion such as a girder, front girder and joist. There were various problems when hanging laundry under the balcony or working or reading under the balcony.
[0008]
Conventionally, the girder rain gutter, the front girder gutter, and the girdle gutter are all integrally formed with the girder, front girder, and joist hanger. Therefore, on the balcony that is set up first, (a) much of the rain that falls on the top of the deck gathers in the joist hanging gutter, but the joist hanging gutter is usually thin. There is a problem of overflowing and dripping down the deck. In addition, (b) when a standing ledge is coupled near the outdoor side end of the tsum girder, rainwater accumulates in the gutter of the tsum girder and is not completely drained early after the rain ends. Therefore, if the watertightness of the end of the rain gutter of the Tsumara is not good, water leakage is likely to occur from the end of the end of the tsum girdle. When the deck becomes horizontal due to secular change or the like, the drainage performance of the gutters on the top surface of the deck and the girder decreases.
In addition, when a deck is installed horizontally in which the vertical frame is connected to the end of the end of the Tsumago, after the gutter of the Tsumara has fallen down due to aging or deterioration, There is a problem that rainwater accumulates in the front girder side of the gutter, the drainage performance is similarly reduced, and water leaks or drops from the front girder side end of the girder.
[0009]
The present invention has been made in view of the above circumstances, and the first problem is that the condensed water generated in at least the twill beam and the front girder is dropped on the ground via the rainwater guiding member without dripping down the deck. It is to provide a drainage device for a deck that can drain water.
The second problem is to allow at least condensate water generated in the beam and front girder to be drained with a minimum of processing on the beam and front beam.
A third problem is to allow at least condensed water generated in the twill beam and the front girder to merge with rain water that has fallen on the upper surface of the deck so that it can be drained through the minimum number of dredging members.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a drainage device for a deck according to the present invention of claim 1 is provided with a condensation collecting groove for collecting condensation generated on the inner wall surface of the hollow portion in the deck side portion of the hollow portion of the common beam. An auxiliary rain gutter projecting to the deck side is provided at the lower end of the front girder, the condensation collecting groove is communicated with the auxiliary gutter, and the lower end of the hollow portion of the front girder is connected to the auxiliary gutter at the longitudinal end of the front girder. The dew condensation water that has flowed into the auxiliary rain gutter from inside the girder and front girder is drained to the ground via a rain water guiding member.
With the above configuration, the condensed water generated on the inner wall surface of the hollow portion of the end beam gathers in the condensation collecting groove and flows out to the auxiliary rain gutter. Condensed water generated on the inner wall surface of the hollow portion of the front girder flows through the lower end portion of the hollow portion to the longitudinal end portion of the front girder and flows out from the end portion to the auxiliary rain gutter. The condensed water that has flowed out to the auxiliary rain gutter is drained to the ground via the rain water guiding member. Accordingly, it is possible to prevent dew condensation from dripping from the end of the end beam or front girder.
[0011]
According to a second aspect of the present invention, there is provided a drainage device for a deck according to the present invention, wherein a bottom end portion of a deck-side vertical wall forming a condensate collecting groove of a beam is bent to the opposite side of the deck, and the condensation collecting groove is formed on the bent wall. A hole for communicating with the auxiliary rain gutter is provided, and the longitudinal end surface at the lower end portion of the hollow portion of the front beam connected to the deck side vertical wall of the end beam is connected between the longitudinal end surface and the bent wall. A gap is formed, and the hole of the bent wall and the lower end of the hollow portion of the front girder are communicated with the auxiliary rain gutter in the gap.
With the above configuration, the condensate collecting groove of the end beam communicates with the gap formed by the bent wall of the end beam by the hole, and the lower end of the hollow portion of the front girder that is connected with the longitudinal end surface contacting the deck side surface of the end beam The part faces the gap formed by the bending wall of the wife beam. The gap is connected to the auxiliary gutter. Therefore, the dew condensation water generated on the inner wall surface of the hollow portion of the end beam and the inner wall surface of the hollow portion of the front girder gathers together in the auxiliary rain gutter. The minimum processing is sufficient to provide a hole in the bending wall of the end beam.
[0012]
The bottom wall forming the hollow portion of the front girder is cut and raised downward in the vicinity of the longitudinal end thereof to form a locking piece, and the hole or notch that opens the hollow portion of the front girder downward is formed, The locking piece is used for positioning and temporary holding by locking the girder to the girder auxiliary gutter when connecting the front girder to the girder, and the hole or notch is used to condensate water generated in the hollow part of the front girder. When it is used to let it flow into the auxiliary gutters of the Tsumara, the connection work between the front girder and the Tsumara can be performed stably and quickly, and the condensed water generated in the hollow part of the front girder The drainage performance to the auxiliary rain gutter is improved.
[0013]
With the rain gutter provided on the inner surface of the deck of the Tsumarabe facing the front edge direction of the deck, the front girder side end of the deck faces the gutter provided on the inner surface of the deck of the front girder, Rainwater that flows out from the edge of the deck upper surface is allowed to flow into the rain gutter (hereinafter referred to as the “tsumage rain gutter”) of the girder, and rainwater that flows out from the front girder side edge of the deck top surface is Flowing into a rain gutter (hereinafter referred to as a pre-rain gutter), joining the Tsumage Gutter from a notch or hole formed in a longitudinal end of the front gutter, and rainwater merged with the Tsumage Gutter, When the condensed water that has flowed into the auxiliary gutters of the Tong Liang is merged into the merger and drained from the merger to the ground via the rainwater guiding member, the rain that has fallen on the upper surface of the deck and at least the wife Condensation water generated in beams and front girders can be drained through a common rain gutter, Lowering appearance can be prevented by increasing wood.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 to FIG. 10 are for explaining the components of the balcony along the order of the installation process. FIG. 1 is a perspective view showing the state of attachment of the front fitting to the housing, and FIG. FIG. 3 is a perspective view illustrating a process of attaching a joist hook between the proximal ends of the attached beam, and FIG. 4 is a diagram illustrating a positioning structure of the joist hook with respect to the beam. FIG. 5 is a perspective view for explaining the positional relationship between the end of the end beam and the joist hanging, FIG. 6 is a perspective view for explaining the process of attaching the front girder between the ends of the end beam, and FIG. FIG. 8 is a cross-sectional view of the front girder, FIG. 9 is a cross-sectional view showing the moving direction and positional relationship when the front girder is attached to the girder, and FIG. 10 is the shape of the gutter. FIG. 2 is a perspective view showing a partially broken structure.
11 is a cross-sectional view of a main part of a balcony provided with a drainage device according to the present invention, FIG. 12 is a cross-sectional view taken along line XX of FIG. 11, FIG. 13 is a cross-sectional view taken along line YY of FIG. FIG. 15 is a perspective view for explaining the attachment of the merger to the Tsumagoge.
[0015]
[Composition of balcony]
First, each component is demonstrated according to the installation order of a balcony.
As shown in FIG. 1, two left and right tip fittings 2 projecting in the outdoor direction are fixed to the housing 1 by screwing on a fixing plate 2 a with a distance corresponding to the frontage dimension of the balcony. In this case, the leading metal fitting 2 is fixed to the front, the horizontal, or the front, depending on whether the balcony is installed in the upward state, in the horizontal state, or in the downward direction. .
[0016]
Next, as shown only in the right-hand metal fitting 2 in FIG. 2, each metal fitting 2 is inserted into the beam 3 and screw s1 is screwed in, so that the beam 3 is fixed to the housing. More specifically, the main beam 3 is mainly formed in a rectangular tube shape and has a hollow portion 3 a, and each end fitting 2 is connected to the fixing plate 2 a of the end fitting 2 with the housing side end surface thereof. Insert into the hollow portion 3a of the beam 3 until it abuts, and insert the screw s1 through the screw insertion hole 3c provided in the inner wall 3b forming the hollow portion 3a of the beam 3 and screw into the tip fitting 2 To fix. After fixing, in order to prevent rainwater from entering the screw insertion hole 3c, a hole closing seal 4 is attached. An auxiliary rain gutter 3e, which is dictated, protrudes integrally from the lower end of the inner wall 3b of the end beam 3.
[0017]
Subsequently, as shown in FIG. 3, a joist hook 5 is fitted between the frame side end portions (which may be referred to as base ends) of the left and right end beams 3 fixed to the frame 1, and the coach screw It is fixed to the housing 1 by a screw s2 such as. In this case, as shown in FIGS. 2, 3, and 4, the frame-side end of the inner wall 3 b of the end beam 3 is horizontally cut to form a rectangular locking piece 3 d, and FIGS. As shown in FIG. 5, the joist 5 is a vertical wall 5a that is in close contact with the housing, and extends substantially horizontally from the upper end of the vertical wall 5a in the outdoor direction to cover the housing side end of the deck upper surface, which will be described later. The cover 5b and the joist support 5c extending stepwise in the outdoor direction from the lower end of the vertical wall 5a are formed in a substantially U-shaped cross section as a whole. The joist hook 5 is placed on the locking piece 3d so that it can be easily held in a horizontal state, and the screw s2 can be easily screwed into an accurate position while being held in a horizontal state.
[0018]
After the beam 3 and the joist 5 are fixed to the housing 1, as shown in FIG. 5, a seal such as filling the caulking material 6 between the upper end of the joist 3 and the joist 5 and the wall surface of the housing. Processing is performed.
[0019]
After the joist 5 is attached, as shown in FIG. 6, the front girder 7 is placed between the ends of the left and right end beams 3 (this may be referred to as the tip), and the longitudinal end surface of the end beam is the end beam. 3 are connected in contact with the opposing surface on the tip side, that is, the inner wall 3b. More specifically, as shown in FIG. 7, the front girder 7 is formed in a rectangular tube shape and has a hollow portion 7a, and is opened on the upper surface of the inner wall 7b forming the hollow portion, A front rain gutter 7c that opens in the longitudinal direction is integrally formed, and a joist support 7d is formed in the lower portion of the inner wall 7b.
[0020]
Then, the inner wall 7b is directed toward the housing as shown in FIG. 6, and one side 8a of the L-shaped front girder mounting bracket 8 is inserted into the end of the hollow portion 7a as shown in FIG. The side 8b is fixed to the inner wall 7b with a screw s3 in a state where the side 8b is positioned on the opening surface of the hollow portion 7a (see FIG. 6), and the front girder 7 is interposed between the ends of the end beam 3 as shown in FIG. It is lowered and fitted from above and placed on the auxiliary rain gutter 3e protruding from the lower part of the inner wall 3b of the end beam 3.
At this time, as shown in FIG. 8, the longitudinal end portion of the lower wall 7e formed in the hollow portion 7a of the front beam 7 is cut downward to form the locking piece 7f. As shown, when lowering the front beam 7, the locking piece 7 f is fitted and locked in the auxiliary rain gutter 3 e of the end beam 3 before the front beam 7 is connected to the end beam 3. It can be stably held at an accurate position between the end beams 3 on both sides.
[0021]
As shown in FIG. 6, the longitudinal end surface of the front beam 7 and the other side 8b of the bracket 8 positioned on the end surface are brought into contact with the opposite surface of the tip end of the cross beam 3, that is, the inner wall 3b. The holes provided in 3b are matched, the screw s4 is passed through the hole on the inner wall from the hollow portion 3a of the end beam 3, and is screwed into the screw hole on the other side 8b of the bracket 8, whereby the front girder 7 is connected to the both end beams 3 Connected to
[0022]
In addition, the sealing material 11 is affixed on the longitudinal direction both end surfaces of the front girder 7 before the connection, and in the connected state, high water tightness is obtained on the contact surface of the beam 3 and the front girder 7. Moreover, after the sealing material 11 is affixed also to the front end surface of each end beam 3, the end beam cap 9 is fitted in the hollow portion 3a of the end beam 3, and the end of the end portion 3a of the end beam is sealed. High water tightness has been obtained.
[0023]
As described above, the left and right end beams 3, the joist hooks 5 and the front girders 7 are connected in a rectangular frame shape to the outdoor side surface of the housing 1, and then the opposite surfaces of both the end beams 3, that is, the inner wall 3 b surface, As shown in FIGS. 10 and 11, the gutter gutter 12 formed separately from the gable beam 3 is attached so that the front girder side is lower than the gutter side, that is, in a tip-down state.
[0024]
As shown in FIGS. 10, 12, 13, and 14, the Tsumage Girder 12 includes an outer vertical wall 12 a, a bottom wall 12 b that extends horizontally inward from a lower end portion of the outer vertical wall, and a bottom wall 12 b The inner end portion has an inner vertical wall 12c extending in the vertical direction, and the outer vertical wall 12a stands up to a position higher than the inner vertical wall 12c. And the groove | channel 12d opened upward by the upper part rather than the bottom wall of the outer vertical wall 12a, the bottom wall 12b, and the inner vertical wall 12c, and opening in the longitudinal direction of the gutter is formed. Further, support edges 10e; 10f, 12g extending horizontally inward are provided at the upper end of the outer vertical wall 12a and the upper and lower ends of the inner vertical wall 12c. Screw holes 12h and 12i are provided in the outer vertical wall 12a and the inner vertical wall 12c forming the groove 12d.
[0025]
As one method for facilitating the mounting of the wife gutter 12 in a lowered state, the height from the upper surface of the auxiliary gutter 3e of the girder 3 to the upper surface of the joist support 5d of the joist 5 is 3 is designed to be larger than the height from the upper surface of the auxiliary rain gutter 3e to the upper surface of the joist support 7d of the front girder 7.
Then, a gutter gutter 12 is spanned between the joist hung 5d and the front girder 7 connected in a rectangular frame shape, the outer vertical wall 12a of the gutter gutter is in contact with the inner wall 3b of the girder 3, and The lower supporting edge 10g of the inner vertical wall 12c at both ends in the longitudinal direction of the wife rain gutter 12 is placed on the joist support 5d of the joist 5 and the joist support 7d of the front girder 7, and the joists 5d of those , 7d, both ends of the wife rain gutter are fixed by screws s5 screwed into these from below. Therefore, the wife gutter 12 is attached in a downward-falling state.
[0026]
In this case, as shown in FIG. 10, at both ends in the longitudinal direction of the twilight gutter 12, twill gutter fore mouth closures 13a, 13b having the same shape and size are screwed into screws s6 screwed into the screw holes 12h, 12i. Installed. The wife rain gutter blockages 13a and 13b are formed of a rectangular plate 13, and the height thereof is slightly larger than the depth of the groove 12d, that is, the distance from the bottom wall 12b to the support edge 10f.
As shown in FIG. 10 and FIG. 12, the lower end of the wife rain gutter 13a attached to the end of the rain gutter 12 is attached with its lower side coincident with the bottom wall 12b. The end in the longitudinal direction of the groove 12d is sealed, and the upper end portion of the wife rain gutter blockade 13a projects upward from the support edge 10f. Further, as shown in FIG. 10 and FIG. 13, the top of the wife rain gutter closing block 13b attached to the front girder side end of the wife rain gutter 12 is attached with its upper side aligned with the support edge 10f. The end in the longitudinal direction of the groove 12d is sealed.
[0027]
When the twill gutter 12 abuts against the inner surface of the twill beam 3 and is spanned between the joist 5 and the front girder 7 and fixed at the supporting edge 12g by the screw s5, the supporting edge 12f is attached to the deck material. It is used to place and support 14 deck front ends.
[0028]
Next, a plurality of known joists 13 that are long in the direction perpendicular to the joist hook 5 and the front beam 7 are parallel to the beam 3 at a predetermined interval at the intermediate position in the longitudinal direction of the joist hook 5 and the front beam 7. It is stretched and fixed. The joist 13 has a height equal to the height of the inner vertical wall 12c of the wife gutter 12, and both longitudinal ends thereof are respectively mounted on the joist support 5d of the joist hook 5 and the joist support 7d of the front girder 7, and screws s5 and It is fixed with the same screw. Therefore, the upper surface of the support edge 12f of the wife rain gutter 12 and the upper surface of each joist 13 are all on one common front-facing inclined surface.
[0029]
Then, the known deck members 14 are sequentially attached on the common inclined surface in the direction from the housing side to the front beam side as follows. That is, the first deck material is placed on the joist 13 and the support edge 12f of the Tsumago 12 and slides in the direction of the frame 1. At this time, as shown in FIG. 11, the end of the end of the rain gutter 12 is provided with a wife rain gutter closing block 13a that protrudes upward from the support edge 12f. It is stopped by the rain gutter blockade 13a. In other words, the Tsumago-gama fortress 13a functions as a starter for installing the deck material, and by simply sliding the first deck material in the frame direction, the deck material is accurately positioned, and the other deck materials following the joist 13 are sequentially placed. Simply place it on the support edge 12f of the Tsumage Gutter 12 and slide it in the direction of the frame 1 to easily and quickly position all deck materials at the specified positions as designed and insert them between each deck material. The deck material 14 can be smoothly fixed by screwing the screw s6 to be screwed into a screw hole that is previously opened in the joist 13.
[0030]
And the frame side edge part of the first deck material is coat | covered with the cover part 5b of the joist hook 5 (refer FIG. 11). Further, as described above, the deck edge direction end of each deck material 14 is placed on the support edge 12f and faces the groove 12d of the Tsumage rain gutter 12, and the deck edge direction end of the deck material and The groove 12d is covered by fixing the deck cover 15 to the support edge 12e formed at the upper end of the outer vertical wall 12a of the gutter 12 with the decorative screw s7 (see FIGS. 12 and 13). Further, the end of the last deck member on the outdoor side faces the front gutter 7c of the front girder 7.
[0031]
[Configuration of drainage equipment]
The balcony is provided with a drainage device as described below. That is, both end portions of the deck upper surface in the deck front direction face the grooves 12d of the Tsumago Gutter 12, and the housing side end and the outdoor side end of the Tsumage Gutter groove 12d are sealed by the Tsumage Gutter fortifications 13a and 13b. Has been. In the vicinity of the outdoor side end of the gutter 12, a rain water dropping hole 12 j is provided at the bottom of the groove 12 d, and the upper end of the rain water dropping cylinder 16 is coupled to the hole. Accordingly, rainwater flowing out from both ends in the frontage direction of the deck flows in the tipping rain gutter 12 toward the end of the outdoor side, and then flows down from the rainwater falling hole 12j to the rainwater dropping cylinder 16.
[0032]
On the other hand, the outdoor side end of the top surface of the deck faces the front gutter 7c of the front girder 7 (see FIG. 11), and as shown in FIGS. 7 and 9, at least one end in the longitudinal direction of the front gutter 7c. Is cut out over a length not exceeding the width of the groove 12d of the rain gutter to form a rainwater dropping hole 7e. And since the bottom of the rain gutter 7c exists in a position slightly higher than the support edge 12f of the wife rain gutter (see FIG. 11 and FIG. 13), the rain water flowing into the rain gutter 7c from the top of the deck passes through the hole 7e. It flows down into the groove 12d of the Tsumago 12 and merges with the rainwater that flows in from the edge direction end of the deck, and flows down from the rainwater falling hole 12j to the rainwater dropping cylinder 16. The rainwater flowing down to the rainwater dropping cylinder 16 falls into the merger 16a as illustrated in FIG.
[0033]
The bottom wall 3f of the hollow portion 3a of the end beam 3 is inclined downward toward the deck side, and a condensation collecting groove 3g is formed in the deck side portion, and the condensed water generated on the inner wall surface of the hollow portion 3a is condensed and collected. It gathers in the groove 3g. The auxiliary rain gutter 3e protrudes from the deck side end of the bottom wall 3f to the deck side, and a bent wall 3h recessed in the direction opposite to the deck is formed at the lower end of the inner vertical wall 3a of the end beam 3. A gap 3i is formed outside the bent wall, and holes 3j are formed at a plurality of positions spaced apart in the longitudinal direction of the bent wall 3h so as to connect the condensation collecting groove 3g to the auxiliary rain gutter 3e. Accordingly, the condensed water accumulated in the condensation collecting groove 3g flows out to the auxiliary rain gutter 3e through the hole 3j.
[0034]
The front girder 7 is connected with its longitudinal end face in contact with the inner vertical wall 3b of the cross beam, but the lower end of the front end 7 of the front girder 7 faces the gap 3i. Therefore, the lower end portion of the hollow portion 7a of the front girder communicates with the auxiliary rain gutter 3e through the gap 3i. Further, as described above, since the locking piece 7f is engaged in the auxiliary rain gutter 3e, the hole 7g adjacent to the locking piece also communicates with the auxiliary rain gutter 3e. Therefore, the dew condensation water generated on the inner wall surface of the hollow portion of the front beam 7 also flows out to the auxiliary rain gutter 3e through the hole 7g and the gap 3i.
Note that both ends of the auxiliary rain gutter 3e in the longitudinal direction are sealed with watertight fore edge members 9 '.
[0035]
The merger 16a is formed in a front L-shaped cylindrical shape, and is open to the upper surface of the L-shaped vertical portion, the upper surface and the lower surface of the horizontal portion. The horizontal top surface opening is coupled to the hole formed in the bottom of the auxiliary rain gutter 3e via the packing 16b by the screw s8, and the vertical bottom surface opening is joined to the bottom end of the rain water dropping cylinder 16 Is inserted. In this way, the rainwater flowing down from the Tsumage rain gutter 12 through the rain water dropping cylinder 16 and the dew condensation water generated in the girder 3 and the front girder 7 and flowing out to the auxiliary gutter 3e are merged into the merger 15b.
And since the lower end part of the merger 16a is couple | bonded with the vertical rod 19 via the elbow 17a, the call rod 18, and the other elbow 17b, it will flow down in the vicinities of a housing like before, and will be drained on the ground. .
[0036]
Since FIG. 11 illustrates the case of a columnar type balcony, in order to drain the rainwater dropping cylinder 16 provided near the front girder 7 to the ground, the rainwater falling cylinder 16 is connected to the elbow 17a, the call 18 and Although it is desirable to connect to the vertical frame 19 provided near the frame through the elbow 17b for the appearance and the prevention of the obstacle, even in the case of a columnar type balcony or a columnar type balcony In particular, the lower end portion of the rain water dropping cylinder 16 may be coupled to a vertical shaft or a water guide chain provided vertically below the rain water dropping tube 16 or close to the pillar.
[0037]
Further, FIG. 11 exemplifies a case where the top surface of the deck is first lowered. However, even in the first-up deck, since the Tsumago is attached to the first descending, it goes without saying that good drainage can be obtained. Nor.
[0038]
As described above, the Tsumago 12 is formed separately from the Tsumago 3 so that the Tsumage Girder can be moved down to the Tsum Liang regardless of whether the balcony is uphill, horizontal, or downhill. Therefore, even if the installation angle of the balcony changes due to aging, etc., the rain that always falls on the top surface of the deck is allowed to flow toward the outdoor side end of the Tsumage Gutter, and the outdoor side end thereof It can be drained to the ground from the vicinity, and even when there is a lot of rainfall, it can be surely prevented from overflowing from the end of the frame side of the Tsumara. However, the present invention can also be applied to a form in which the girder rain gutter is formed integrally with the girder.
Moreover, if the depth of the auxiliary rain gutter is set appropriately, there is a risk of leakage from the auxiliary rain gutter even if the rain water dropping cylinder 16, the hole 3i, and the junction 16a are provided at arbitrary positions in the longitudinal direction of the girder. There is no.
[0039]
【The invention's effect】
As described above, according to the first aspect of the present invention, the deck side portion of the hollow portion of the end beam is provided with the condensation collecting groove for collecting the condensation generated on the inner wall surface of the hollow portion, and protrudes toward the deck side at the lower end portion of the end beam. An auxiliary rain gutter is provided to communicate the condensation collecting groove with the auxiliary rain gutter, while the lower end of the hollow portion of the front girder is communicated with the auxiliary gutter at the longitudinal end of the front girder so that the inside of the front girder and the front girder Condensed water that has flowed into the auxiliary rain gutter from the inside is drained to the ground via the rainwater guiding member, so at least the condensed water that is generated in the span beam and front girder is dripped from the end of the cross beam or front girder It can be drained to the ground without causing it.
[0040]
According to the second aspect of the present invention, the bottom wall of the vertical wall on the deck side of the beam is provided with a hole in the bent wall formed to bend on the opposite side of the deck so that the condensation collecting groove communicates with the auxiliary rain gutter. A gap is formed between the longitudinal end surface and the bending wall at the lower end of the hollow portion of the front beam connected to the vertical wall by contacting the longitudinal end surface, and the hole of the bending wall and the hollow of the front beam are formed in the gap. Since the lower end of the section is in communication with the auxiliary gutter, when the condensed water generated on the inner wall surface of the hollow part of the twill beam and the inner wall surface of the hollow part of the front girder are gathered together in the auxiliary gutter, Since it is only necessary to provide a hole in the bent wall, the number of processes can be reduced.
[0041]
Further, according to the invention of claim 3, the locking piece is formed on the bottom wall forming the hollow portion of the front girder, and the hole or the notch for opening the hollow portion of the front girder downward is formed. When the front girder is connected to the girder, it is used for positioning and temporary holding by locking it to the girder's auxiliary gutter, and the hole or notch is used for condensate water generated in the hollow part of the front girder. Since it is used to flow into the auxiliary gutter, the connection work between the front girder and the girder can be performed stably and quickly. Also, the auxiliary gutter of the condensed water generated in the hollow part of the front girder Improves drainage performance.
[0042]
Then, let the edge of the deck facing the rain gutter on the front edge of the deck, and face the edge of the front girder side of the front girder to the rain gutter of the front girder, and let the rainwater flowing out from the edge of the front edge of the deck face the gutter. The rainwater flowing out from the end of the front girder on the top surface of the deck is allowed to flow into the rain gutter of the front girder, and the notch or hole formed in the longitudinal end of the gutter of the front girder The rainwater that joins the rain gutter of the Tsumago, the rainwater that joins the rain gutter of the Tsumago and the condensed water that flows into the auxiliary rain gutter of the Tsumago joins the merger, and the rainwater guiding member from the merger Because the rain that has fallen on the top surface of the deck and the condensed water generated at least in the girder and front girder can be drained through a common rain gutter, Even if it has a drainage function, it does not impair the beauty of the balcony.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which a front fitting is attached to a housing.
FIG. 2 is a perspective view for explaining a process of attaching the end beam using a tip fitting.
FIG. 3 is a perspective view for explaining a step of attaching a joist hook between the proximal ends of the attached end beams.
FIG. 4 is a cross-sectional view of a main part showing a positioning structure for joisting with respect to a end beam.
FIG. 5 is a perspective view illustrating the positional relationship between the end of the end beam and the joist hanging.
FIG. 6 is a perspective view for explaining a process of attaching a front beam between the ends of the end beam.
FIG. 7 is a perspective view showing a structure of a front beam.
FIG. 8 is a cross-sectional view of the front beam.
FIG. 9 is a cross-sectional view showing the mounting position relationship of the front beam with respect to the end beam.
FIG. 10 is a perspective view showing the shape and structure of a wife rain gutter partially broken.
FIG. 11 is a cross-sectional view of a main part of a balcony provided with a drainage device according to the present invention.
12 is a sectional view taken along line XX in FIG.
13 is a sectional view taken along line YY in FIG.
14 is an enlarged sectional view taken along the line ZZ in FIG.
FIG. 15 is a perspective view for explaining attachment of a dropping cylinder and a merger to a wife gutter.

Claims (4)

In the deck side portion of the hollow portion of the end beam, a condensation collecting groove that collects condensation generated on the inner wall surface of the hollow portion is provided, and an auxiliary rain gutter protruding to the deck side is provided at the lower end portion of the end beam, Condensation collecting grooves are communicated with the auxiliary rain gutter, and the lower end of the hollow portion of the front girder is communicated with the auxiliary rain gutter at the longitudinal end of the front girder. A drainage device for a balcony characterized in that the condensed water that has flowed in is drained to the ground via a rainwater guiding member. The lower end of the deck-side vertical wall that forms the condensate collecting groove of the end beam is bent to the opposite side of the deck, and a hole is provided in the bent wall to communicate the condensing set groove to the auxiliary rain gutter. A gap is formed between the longitudinal end surface and the bent wall at the lower end of the hollow portion of the front beam connected to the side vertical wall by contacting the longitudinal end surface. 2. The balcony drainage device according to claim 1, wherein a lower end portion of a hollow portion of the girder is communicated with the auxiliary rain gutter. The bottom wall forming the hollow portion of the front girder is cut and raised downward in the vicinity of the longitudinal end thereof to form a locking piece, and the hole or notch for opening the hollow portion of the front girder downward is formed, The locking piece is used for positioning and temporary holding by locking the front girder to the girder auxiliary gutter when the front girder is connected to the girder, and the hole or notch is used for condensate generated in the hollow part of the front girder. 3. The drainage device for a balcony according to claim 1 or 2, wherein the drainage device is used for flowing into an auxiliary rain gutter of a tsum girder. Let the front edge of the deck face the rain gutter provided on the inner surface of the deck of the Tsumago, and let the front girder side end of the deck face the rain gutter provided on the inner surface of the front girder deck, Rain water flowing out from the end of the deck upper surface in the front-end direction flows into the gutter of the girder, and rain water flowing out from the front girder side end of the deck upper surface is allowed to flow into the rain gutter of the front girder. From the notch or hole formed in the longitudinal end of the girder gutter, it merged with the rain gutter of the Tsumara, and it flowed into the rainwater merged with the gutter of the tsum girder and the auxiliary gutter of the tsum girder The drainage device for a balcony according to claim 1, 2 or 3, characterized in that the condensed water is joined to a junction and drained from the junction through the rainwater guiding member to the ground.

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