JPH08105125A - Water drip structure between external wall panels and construction method therefor - Google Patents

Abstract

PURPOSE: To eliminate scaffolds and lessen the works in construction site to save labors and obtain a stable waterproofing function. CONSTITUTION: A water drip structure 1 between external wall panels is composed of a girth 5 attached along the upper end face of the external wall panel 4a of the lower floor, and a water drip member 6 attached along the lower end of the external wall panel 4b of the upper floor and provided with an extended part 24 oppositely positioned against the girth 5. A water-tight material 8 is set in the clearance between the girth 5 and the water drip member 6 and pressed by the extended part 24 of the water drip member 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a draining structure between outer wall panels formed at a joint between a lower floor and an upper floor in a building.

[0002]

2. Description of the Related Art Conventionally, in a wall structure of a building in which an outer wall panel manufactured in a factory is transported to a site and attached to a frame on upper and lower floors, a draining structure between outer wall panels on upper and lower floors is disclosed, for example, in Japanese Patent Laid-Open No. 63-51547. As shown in Fig. 1, a long gasket is inserted in the joint between the upper and lower outer wall panels, and a water receiving member that covers the gasket is installed at the lower end of the gasket. There is known a seal structure or the like in which the outer wall panel of the floor is projected to the outside, the caulking material is filled as necessary, and a cover is attached to the outside of the joint.

However, in this product, gaskets, caulks, covers, etc. are attached from outside the building.
Scaffolding must be installed outdoors, but it is difficult to secure a space for scaffolding in small areas. Further, according to this method, not only the number of on-site work is increased, but also a specialized craftsman is required, which causes a high cost, the waterproof performance varies depending on the craftsman's technique, and the caulk and the gasket are damaged due to aging. There is a drawback that water leakage easily occurs.

The outer wall panel may form the outer wall of a box-shaped building unit manufactured in advance in a factory. Such a building unit transports the upper-floor building unit and the lower-floor building unit to the site, and installs the upper-floor building unit on the lower-floor building unit to build a box-shaped unit building. At the lower end of the outer wall panel of the first-floor building unit, a draining material that extends outward from the outer wall panel and extends downward from the lower end of the upper-floor building unit is attached. There has been proposed a method of covering the gap of from the outside of the room.

According to this method, it is possible to obtain a stable waterproof performance for the draining structure and to suppress the deterioration of the waterproof performance with the passage of time. However, since the draining material projects greatly downward from the lower end of the upper floor building unit,
If it is attached to the building unit on the upper floor in advance at the factory, it may be damaged during transportation, and eventually it will be mounted on the site from outside the building unit. For this reason, a scaffolding and a safety device are required in the same manner as described above, which not only increases the construction cost but also may not be possible to perform the construction on site depending on the location conditions. In the specification of the present application, the upper floor and the lower floor mean two floors vertically adjacent to each other in a building having a plurality of floors, for example, 1
The floor (lower floor) and the second floor (upper floor) or the third floor (lower floor) and the fourth floor (upper floor).

[0006]

DISCLOSURE OF THE INVENTION The present invention provides a draining structure between outer wall panels which eliminates scaffolding, reduces on-site construction to save labor, and provides stable waterproof performance, and a construction method therefor. The purpose is to provide.

[0007]

[Means for Solving the Problems]

[Apparatus] The present invention relates to a draining structure between outer wall panels. The drainage member is attached along the upper end surface of the outer wall panel on the lower floor, and the draining member attached along the lower end edge of the outer wall panel on the upper floor and having a projecting portion facing the barrel difference. A tight material is provided in the longitudinal direction of both members in the gap between the body gap and the drainage material, and the tight material is pressed between the drainage material and the body gap.The tight material is made of an elastic material such as rigid rubber. , A cord-shaped member having a mounting portion and a cushion portion in cross section,
It is for contacting other members and maintaining the contact portion in an airtight and watertight state.

The following configuration may be adopted. The outer wall panel is a component of the building unit, and it must be installed so that the draining material does not protrude below the lower end of the upper floor building unit. Provide a tight material closer to the room in the gap between the body difference and the draining material. Tight material can be attached to the upper surface of the body difference. The tight material is composed of a lower tight material attached to the upper surface of the body difference and an upper tight material attached to the lower surface of the overhanging portion of the draining material, and the lower tight material and the upper tight material are pressed against each other.

A plurality of brackets having positioning protrusions are fixed to the upper end surface of the outer wall panel on the lower floor at appropriate intervals, and protrusions for contacting the positioning protrusions are formed on the body difference to form the positioning protrusions of the brackets. The protrusion should be brought into contact with and the body difference should be placed and fixed on the upper surface of the bracket. A cover for covering the gap between the body difference and the draining material from the outside of the room should be attached to the outer edge of the body difference. Connecting the body differences of the outer wall panels adjacent to each other in the horizontal direction by connecting pieces provided between the upper end portions of the outer wall panels.

[Method] In a factory, a body difference is previously attached along the upper end surface of the outer wall panel on the lower floor. Install draining material along the lower edge of the outer wall panel on the upper floor in advance at the factory. On this occasion,
A tight material is attached to at least one of the body difference and the draining material along the longitudinal direction of both members. Transport the outer wall panels on the lower floor and the outer wall panels on the upper floor to the construction site. The outer wall panels on the upper and lower floors are attached to the body with a tight material pressed between the draining material and the body gap to form a draining structure between the outer wall panel on the lower floor and the outer wall panel on the upper floor.

The following means may be adopted. The outer wall panel on the lower floor is transported to the construction site and then fitted with a body difference, then at least one of the body difference and the drainage material is fitted with a tight material over the longitudinal direction of both members, and then the tight material is used as a drainage material. A means for attaching the outer wall panels on the upper and lower floors to the body while being pressed between the body gaps. The outer wall panel on the lower floor constitutes the outer wall of the lower-floor building unit, the outer wall panel on the upper floor constitutes the outer wall of the upper-floor building unit, and the draining material is from the lower end of the upper-floor building unit. A means to attach so that it does not project downward.

[0012]

[Function] The structure in which the draining material is attached to the outer wall panel on the upper floor of the building and the body difference is attached to the outer wall panel of the lower floor in advance does not require work at a high place from the outside of the building. The configuration in which the tight material is arranged in a pressed state between the body difference and the draining material eliminates variations in watertightness and airtightness between the outer wall panels and stabilizes the waterproof performance. The tight material adds airtightness and watertightness to the drainage structure. The structure in which the tight material is provided closer to the room between the body difference and the draining material keeps the tight material away from the direct influence of the outside air and suppresses the deterioration thereof.

The bracket facilitates positioning of the body difference and mounting work. The cover covers the gap between the body difference and the draining material from the outside of the room, adjusts the appearance of the outer wall, and prevents rain wind from directly blowing into the interior of the draining structure. The connecting piece interconnects the ends of the drainage structure between laterally adjacent outer wall panels. In the construction method of the present invention, the body difference is previously attached along the upper end surface of the outer wall panel on the lower floor in the factory,
The construction in which the draining material is installed in advance along the lower edge of the outer wall panel on the upper floor at the factory, and the tight material is attached to at least one of the body difference and the draining material in the longitudinal direction of both members at the factory, requires less on-site construction. However, it is possible to easily and surely obtain the drainage structure of the outer wall panel.

The outer wall panel on the lower floor constitutes the outer wall of the lower floor building unit, the outer wall panel on the upper floor constitutes the outer wall of the upper floor building unit, and the drainer is the upper floor building unit. The structure that is installed so that it does not project downward from the lower end of the above makes it possible to form a draining structure between the upper and lower outer wall panels simply by assembling the upper floor building unit to the lower floor building unit. , It is possible to prevent the members constituting the draining structure from being damaged during the transportation of the building unit.

[0015]

EXAMPLE FIG. 1 shows that the outer wall panels 4a and 4b are respectively
It relates to an embodiment in which the outer walls of the building units 2 and 3 are configured. The draining structure 1 between outer wall panels includes a beam 13a assembled in a box shape and a lower floor building unit 2 in which an outer wall panel 4a is attached to an outer surface of a column (not shown), and a beam 13b assembled in a box shape. And the outer wall panel 4b is attached to the outer surface of the pillar (not shown) along the joint of the upper floor building unit 3. The draining structure 1 includes a body gap 5 attached along the upper end surface of the outer wall panel 4a of the lower floor building unit 2 and a draining member 6 attached along the lower edge of the outer wall panel 4b of the upper floor building unit 3. The construction method will be described together with the structure.

The body difference 5 is installed over the entire upper periphery of the lower floor building unit 2, and in its cross section, as shown in FIG. 2, a tight material fitting groove 7 is formed near the interior of the upper surface and at the same time. As shown in FIG. 1, a tight material 8 made of an elastic material such as soft rubber is mounted in the tight material fitting groove 7, and a water return wall 9 is erected on the upper surface near the outdoor side. Tight material 8
Is formed to have a hollow cylindrical shape so as to increase elasticity, and a locking projection 8'having a wider tip than the base end is integrally formed at the lower end of the outer peripheral surface thereof along the longitudinal direction. The strip 8 ′ is engaged with the tight material fitting groove 7 with the body difference 5. Further, as shown in FIG. 2, the body difference 5 has an outdoor side edge bent downward to form a drainage guide piece 10, and a support leg 11 is provided on the lower surface toward the inside of the chamber, and at a middle portion of the lower surface. A positioning projection 12 is formed, and a fixing hole 15 a is formed between the projection 12 and the water return wall 9.

The body difference 5 is attached to the upper end surface of the outer wall panel 4a of the lower floor building unit 2 in this embodiment via a plurality of brackets 14 fixed at appropriate intervals in the circumferential direction. As shown in FIG. 3, the bracket 14 is provided with a fixed flat plate 16 near the inside of the bracket 14, and the outdoor side of the fixed flat plate 16 is bent upward to be convex and a positioning projection 17 is formed.
Is formed, a hanging piece 18 is formed which extends the outdoor end of the positioning protrusion 17 downward and contacts the outer surface of the outer wall panel 4a. The hanging piece 18 is placed on the upper surface of the outer wall panel 4a on the indoor side surface of the hanging piece 18. The support piece 19 is projected. Further, the positioning protrusion 17 is provided with a fixing hole 15b corresponding to the fixing hole 15a of the body difference 5, and the fixing plate 15 has the fixing hole 15b.
c is drilled.

The bracket 14 and the body difference 5 are attached along the upper end surface of the outer wall panel 4a of the lower floor building unit 2 as follows. As shown in FIG. 1, the panel frame 20a
The belt-shaped waterproof sheet 21 is covered over the upper surface of the outer wall panel 4a through the upper surface of the. The waterproof sheet 21 is provided so as to extend over the upper surface of the beam 13a of the lower-floor building unit 2. Brackets 14 are arranged on the upper surface of the waterproof sheet 21 at appropriate intervals in the circumferential direction of the lower floor building unit 2, the fixed flat plate 16 of the bracket 14 is on the upper surface of the panel frame 20a, and the support piece 19 is on the upper surface of the outer wall panel 4a. The bracket 14 is positioned by placing the hanging piece 18 on the outer surface of the outer wall panel 4a while being placed on the waterproof sheet 21, respectively. The bracket 22 is screwed into the panel frame 20a from the fixing hole 15c. 14 is fixed.

The body difference 5 is defined by the positioning protrusion 1 of the bracket 14.
7 is placed on the upper surface of the panel frame 20a via the waterproof sheet 21, and the support legs 11 are placed on the upper surface of the panel frame 20a.
The protrusion 12 with the body difference of 5 is used as the positioning protrusion 17 of the bracket 14.
Abutting against the inner side surface of the inside of the body to position the body difference 5, and the fixing hole 1
The body 22 is fixed to the bracket 14 by screwing the screw 22b into the fixing hole 15b and the fixing hole 5b. In addition, the waterproof sheet 2
1 and the bracket 14 are attached to the upper end surface of the outer wall panel 4a of the lower-floor building unit 2 in advance at the factory, but the body difference 5 may be attached at the factory or on-site. Both are construction methods according to the present invention.

Further, in this embodiment, at the connecting ends of the lower floor building units 2 which are horizontally adjacent to each other, the body difference 5 between the adjacent outer wall panels 4a is, as shown in FIG. They are connected via a connecting piece 27 provided so as to straddle them. The connection piece 27 is a connection piece 2 that is placed between the tight material fitting groove 7 on the upper surface of the body difference 5 and the water return wall 9.
8 and a receiving piece 29 which is formed above the outside of the connecting piece 28 and which supports the lower surface of the draining member 6, and the connecting piece 28 is hung between the upper surfaces of the adjacent barrel differences 5 so that the screw 22c is provided at each end. By connecting the parts to each other, the body differences 5 are connected to each other. In addition, at the portion where the bracket 14 is arranged, the connecting piece 28 can be fixed by the screw 22b.

As shown in FIG. 1, the draining member 6 is attached along the lower edge of the outer wall panel 4b of the upper floor building unit 3. The draining member 6 includes a vertical wall 23 attached to the inner surface of the panel frame 20b of the outer wall panel 4b,
Overhanging portion 24 protruding from the lower end of the vertical wall 23 to the outside of the room
And a height positioning piece 25 that is in contact with the lower surface of the panel frame 20b is formed in the middle portion on the outdoor side surface of the vertical wall 23. Pieces 26 and 26a are formed. The draining member 6 is preliminarily used in the factory so as not to project from the lower edge of the outer wall panel 4b of the upper floor building unit 3 from the lower edge of the unit 3, and the projecting portion 24 extends along the lower end surface of the outer wall panel 4b. It is attached so as to extend to the outside of the room.

Draining structure 1 between the outer wall panels 4a and 4b
Is completed by assembling the lower floor building unit 2 and the upper floor building unit 3 in this embodiment as follows. The lower-floor building unit 2 is installed on an appropriately constructed foundation (not shown), and the waterproof sheet 21 extending from the upper end surface of the outer wall panel 4a to the indoor side is spread on the upper surface of the beam 13a, and the upper part The packing 30 is attached along the circumferential direction of the building unit 2. In the case of the field-installed barrel difference 5, this is attached to the upper end surface of the outer wall panel 4a of the lower-floor building unit 2. Next, the body difference 5 comrades of the adjacent lower floor building units 2 are connected by the connecting piece 27.

Next, the upper-floor building unit 3 is installed on the lower-floor building unit 2, the beam 13b is placed on the beam 13a via the packing 30, and the beam 13a and the beam 13b are fixed with bolts or the like. Then, the body difference 5 and the overhanging portion 2 of the draining material 6
4 are opposed to each other and the gap between the body difference 5 and the draining material 6 is set to be smaller than the height of the tight material 8 when there is no load, so that the tight material 8 is pressed by the draining material 6.

If necessary, packing is performed between the lower surface of the overhanging portion 24 of the draining member 6 and the water return wall 9 of the body difference 5, and between the lower surface of the body difference 5 and the upper surface of the fixed plate 16 of the bracket 14. May be attached. In addition, a spacer is attached to the indoor side surface of the drainage guide piece 10 having a body difference of 5, and the spacer is brought into contact with the outer side surface of the outer wall panel 4a so that the body difference of 5
Can also be positioned.

FIG. 5 shows a second embodiment. The difference from the first embodiment is that the tight material 8b is also arranged on the draining material 6 side. That is, a tight material fitting groove 7'is formed near the lower surface chamber of the overhanging portion 24 of the draining material 6, and an upper tight material 8b made of soft rubber or the like is circumferentially formed in the tight material fitting groove 7 '. Have been fitted. On the other hand, a lower tight material 8a similar to the upper tight material 8b is fitted in the tight material fitting groove 7 of the body difference 5, and the upper floor building unit 3
When the lower building unit 2 is assembled, the upper tight member 8b and the lower tight member 8a are pressed against each other.

Further, as shown in FIG. 6, a flat L-shaped corner metal fitting 31a is superposed on the lower surface of the joining corner portion of the body difference 5 which is orthogonal to each other in the projected corner portion and the entered corner portion in the plan view of the lower floor building unit 2. Then, both ends of the corner metal fitting 31a and the ends of the respective barrel differences 5 are screwed with the screws 22d to connect the orthogonal barrel differences 5. Further, also in the corner portion of the upper-floor building unit 3, the flat L-shaped corner metal fitting 31b is superposed on the lower surface of the joining corner portion of the overhanging portion 24 of the orthogonal water draining material 6, and both ends of the corner metal fitting 31b and each draining material 6 are overlapped. The end portions of 2 are screwed together with screws 22e to connect the orthogonal draining members 6 to each other. Since the other configurations and construction methods are almost the same as those of the first embodiment, the same parts are designated by the same reference numerals and the description thereof will be omitted.

FIG. 7 shows a third embodiment. Compared with the first embodiment, the overhanging portion 24 of the draining member 6 is shorter than that of the first and second embodiments, and is curved downward toward the outside of the room, and the body difference 5 forms a bracket. Not using the waterproof sheet 2 on the upper end surface of the outer wall panel 4a of the lower floor building unit 2
1, a plurality of cover attachment members 34 are attached to appropriate positions on the outer surface of the body difference 5, and a cover 35 that covers the gap between the body difference 5 and the draining member 6 from the outdoor side is provided via the cover attachment member 34. It is characterized in that it is attached to the body difference 5.

As shown in FIG. 8, the body difference 5 has an inclined portion 37 that is placed on the upper end surface of the outer wall panel 4a, and an upstanding wall 32 is formed at the indoor side edge of the upright wall 32. The tight material fitting groove 7 is provided at the upper end, the tight material 8 is fitted in the tight material fitting groove 7, and the locking projection 35 is provided on the lower surface of the outdoor side end portion of the tight material fitting groove 7. There is. Further, the outdoor side end of the body difference 5 is bent downward along the outer surface of the outer wall panel 4a to form a mounting piece 33, and a fixing hole 15d is formed in the lower portion of the mounting piece 33. Further, a plurality of convex shapes 36 are provided on the lower surface of the inclined portion 37 as they are closer to the room, and when installed on the upper surface of the lower-floor building unit 2, the inclined portion 37 inclines downward toward the outside of the room to form a water gradient. Are formed.

As shown in FIG. 9, the cover attaching member 34 is provided with an inclined arm 38 along the upper surface of the inclined portion 37 of the body difference 5.
And a rising piece 39 provided on the upper surface of the indoor end of the tilting arm 38 and elastically engaged between the tilting portion 37 of the body difference 5 and the locking projection 35, and the outdoor end of the tilting arm 38. The bulging portion 40 provided on the upper side and the external mounting piece 41 provided on the lower surface of the outdoor side end of the inclined arm 38 and extending along the outer surface of the mounting piece 33, and the body difference 5 is fixed to the lower part of the external mounting piece 41. A fixing hole 15e corresponding to the working hole 15d is formed.

The cover 35 has a recessed groove 42 formed in the middle portion of the interior side surface of the cover 35 for snap-engaging with the bulging portion 40 of the cover mounting member 34, and the upper cover piece bent above the recessed groove 42 to be convex in the outdoor direction. 43 is provided, and below the groove 42, a lower covering piece 44 that is bent to be convex in the outdoor direction and extends below the outer mounting piece 41 of the cover mounting member 34 is provided.

When assembling the upper-floor building unit 3 and the lower-floor building unit 2, at the site or in the factory, the body difference 5 is provided on the upper end surface of the outer wall panel 4a of the lower-floor building unit 2 along the circumferential direction of the building unit 2. The cover mounting member 34 is placed at an appropriate position on the outer surface of the body difference 5, and the fixing hole 15d of the body difference 5 and the fixing hole 15 of the cover mounting member 34 are placed.
A screw 22f is driven into the outer wall panel 4a and the panel frame 20a through e, and the body difference 5 and the cover attaching member 3
4 is attached to the lower floor building unit 2. In the field, the cover groove 35 is snap-engaged with the bulging portion 40 of the cover attaching member 34 to attach the cover 35, and the body cover 5 and the fixing portion of the cover attaching member 34 are hidden by the lower covering piece 44.

Next, the upper-floor building unit 3 is installed on the lower-floor building unit 2 and fixed in the same manner as in Example 1, and the tight member 8 is pressed by the projecting portion 24 of the draining member 6. Then, the gap between the draining member 6 and the body difference 5 is covered by the upper covering piece 43 of the cover 35. Other configurations are almost the same as those of the first and second embodiments, and thus the description thereof will be omitted.

FIG. 10 shows a fourth embodiment. In contrast to the third embodiment, the bulging portion 40 is not formed in the cover mounting member 34, and a locking wall 45 having a locking recess is erected on the upper surface of the outdoor side end of the inclined arm 38, and Mounting piece 4
1 is formed with an insertion groove 46 that opens upward in the middle portion of the outdoor side surface of the No. 1, and the locking groove 42 is formed in the cover 35.
Is not formed, a locking hanging piece 47 having a locking projection is provided from the lower end indoor side end of the upper covering piece 43, and the insertion piece 48 is directed downward from the upper end indoor side end of the lower covering piece 44. It is characterized by being bent.

The cover 35 engages the engaging projection of the engaging hanging piece 47 with the engaging recess of the engaging wall 45, and the insertion groove 4
Insert the insert piece 48 into 6, and attach the cover attaching material 34
Mounted on Other configurations and construction procedures are No. 3
Since it is the same as the embodiment described above, the same parts are designated by the same reference numerals and the description thereof will be omitted.

The above is an embodiment, and the present invention is not limited to the illustrated specific configuration. Although the case where the outer wall panels 4a and 4b form the outer wall of the building unit has been described as an example, the drainer structure 1 of the present invention forms the outer wall by attaching the outer wall panels 4a and 4b to a normal building frame. It goes without saying that it is also applicable to cases. In this case, the indoor side of the waterproof sheet 21 in the embodiment is expanded to the upper surface of the furring strip to which the outer wall panels 4a and 4b are attached.

[0036]

According to the structure of the first aspect, the draining structure between the outer wall panels is separated into the draining member and the body difference on the upper floor side and the lower floor side, and can be completed only by assembling them vertically. Since it can be done, it can be attached to the outer wall panels on the upper and lower floors at the factory beforehand. As a result, it is not necessary to provide a scaffold outside the building in order to construct a drainage structure at the site, and construction can be performed even in a small area. As a result,
The labor and material cost of assembling the scaffolding and safety device can be saved, and the construction cost is greatly reduced.
Since the tight material is provided in a pressed state between the draining material and the body difference, the watertightness and airtightness of the draining structure are improved, and the unevenness of the good or bad construction is eliminated.

According to the second aspect, the draining structure between the upper-floor building unit and the lower-floor building unit is easily formed by mounting and mounting the upper-floor unit on the lower-floor unit. Therefore, it does not require a scaffold, etc.
Moreover, the construction cost can be greatly reduced. The number of members that can be preliminarily attached at the factory to form the draining structure between the outer wall panels is reduced, the number of on-site constructions is reduced, the quality is stabilized, and labor saving is realized. Since the draining material of the upper-floor building unit does not project downward from the building unit, there is no fear that the draining material will be damaged during the manufacturing process in the factory, during transportation, and during field construction.

According to the structure of claim 3, deterioration of the tight material can be prevented and the durability of the draining structure can be improved. According to the structure of claim 4, the tight material can be easily attached, and the on-site inspection can be easily performed. According to the configuration of claim 5, the tightness is high due to the joining of the tight materials,
Moreover, the cushioning property is high at the joint portion, and the waterproof performance is uniformly maintained. According to the structure of claim 6, by attaching the bracket to the outer wall panel on the lower floor in advance, it is possible to accurately and easily attach the barrel difference on site.

According to the structure of claim 7, the cover for covering the gap between the body difference and the draining member blocks the gap between the outer wall panels on the upper and lower floors, which not only improves the appearance but also improves the waterproofness. Further, the durability of the tight material located inside is improved. According to the structure of claim 8, positioning and fixing of the body difference ends can be reliably performed, continuity of adjacent body differences can be ensured, and the design of the outer wall surface of the building can be maintained. According to the configuration of claim 9, the drainer structure is formed between the outer wall panels by locally installing the outer wall panel on the upper floor above the outer wall panel on the lower floor. Is not required. Moreover, scaffolding is not required for construction. According to the configuration of claim 10, after performing a slight installation work on the outer wall panel on the lower floor locally, the outer wall panel on the upper floor is simply installed, so that the amount of construction on the site can be significantly reduced. It

According to the structure of claim 11, the lower floor building unit having the outer wall panel of the upper floor is installed locally above the lower floor building unit having the outer wall panel of the lower floor,
Since a draining structure is formed between the outer wall panel on the lower floor and the building panel on the upper floor, the construction is easy and the construction does not require so much skill. Moreover, scaffolding is not required for construction.
Alternatively, after performing a small amount of work on the outer wall panel on the lower floor locally, the outer wall panel on the upper floor is simply installed, which significantly reduces the amount of work on site. Furthermore, since the draining material of the upper-floor building unit does not project downward from the building unit, there is no concern that the draining material will be damaged during the manufacturing process in the factory, during transportation, or during on-site construction, and the building unit is easy to handle. .

[Brief description of drawings]

FIG. 1 is a sectional view of a central portion of a building unit according to a first embodiment of the present invention.

FIG. 2 is an end view of the body difference according to the first embodiment of the present invention.

FIG. 3 is an end view of the bracket according to the first embodiment of the present invention.

FIG. 4 is a sectional view of an end portion of a building unit according to the first embodiment of the present invention.

FIG. 5 is a sectional view of a central portion of a building unit according to a second embodiment of the present invention.

FIG. 6 is a sectional view of a building unit corner portion according to a second embodiment of the present invention.

FIG. 7 is a sectional view of a central portion of a building unit according to a third embodiment of the present invention.

FIG. 8 is an end view of a barrel difference according to a third embodiment of the present invention.

FIG. 9 is an end view of a cover and a cover mounting member according to a third embodiment of the present invention.

FIG. 10 is a sectional view of a central portion of a building unit according to a fourth embodiment of the present invention.

[Explanation of symbols]

1 Draining structure between outer wall panels 2 Lower floor building unit 3 Upper floor building unit 4a, 4b Outer wall panel 5 Body difference 6 Draining material 7, 7'Tight material fitting groove 8 Tight material 8 'Locking ridge 8a Lower tight material 8b Upper tight material 9 Water return wall 10 Drain guide piece 11 Support leg 12 Protrusion 13a, 13b Beam 14 Bracket 15a, 15b, 15c, 15d, 15e Fixing hole 16 Fixing flat plate 17 Positioning projection 18 Hanging piece 19 Support piece 20a, 20b Panel frame 21 Waterproof sheet 22a, 22b, 22c, 22d, 22e, 22f Screw 23 Vertical wall 24 Overhanging portion 25 Height positioning piece 26, 26a Water return leg piece 27 Connecting piece 28 Connecting piece 29 Receiving piece 30 Packing 31a, 31b Corner bracket 32 Standing wall 33 Mounting piece 34 Cover mounting material 35 Cover 36 Convex 37 Sloping part 38 Sloping arm 39 Rising piece 40 Bulging part 41 External mounting piece 42 Recessed groove 43 Upper covering piece 44 Lower covering piece 45 Locking wall 46 Inserting concave groove 47 Locking hanging piece 48 Inserting piece

Claims (11)

[Claims] 1. A draining member that is attached along the upper end surface of the outer wall panel of the lower floor and a drainage member that is attached along the lower edge of the outer wall panel of the upper floor and that has an overhanging portion that faces the barrel difference. A drainage structure between outer wall panels, characterized in that a tight material is provided in a longitudinal direction of both members in a gap between the body difference and the drainage material, and the tight material is pressed by the drainage material and the body difference. 2. The outer wall panel of the lower floor constitutes the outer wall of the lower building unit, the outer wall panel of the upper floor constitutes the outer wall of the upper building unit, and the draining member is
The draining structure between outer wall panels according to claim 1, wherein the draining structure is mounted so as not to project downward from the lower end of the upper floor building unit. 3. A tight material is provided closer to the interior of the gap between the body difference and the draining material.
Draining structure between outer wall panels described in. 4. The draining structure between outer wall panels according to claim 1, wherein a tight material is attached to the upper surface of the body difference. 5. The tight material is composed of a lower tight material attached to the upper surface of the body difference and an upper tight material attached to the lower surface of the overhanging portion of the draining material, and the lower tight material and the upper tight material are pressed against each other. The draining structure between outer wall panels according to claim 1 or 2. 6. The body difference is fixed to the upper end surface of the outer wall panel on the lower floor by a bracket, and the bracket has a positioning protrusion and a plurality of brackets are fixed to the upper end surface of the outer wall panel at appropriate intervals. The protrusion is formed on the barrel difference, the barrel difference is placed on the upper surface of the bracket, and the protrusion is abutted and fixed to the positioning protrusion of the bracket. Draining structure between outer wall panels. 7. The outer wall panel according to claim 1 or 2, wherein a cover for covering a gap between the body difference and the draining member from the outside is attached to an end portion of the body difference closer to the outside. Drainage structure. 8. The case according to claim 1, wherein the outer wall panels that are horizontally adjacent to each other are connected to each other by a connecting piece provided between the upper end portions of the body differences. Draining structure between outer wall panels described in one. 9. A drainage member attached along the upper end surface of the outer wall panel of the lower floor, and a draining member attached along the lower end edge of the outer wall panel of the upper floor and having a projecting portion facing the barrel difference, A tight material provided in the longitudinal direction of both members in the gap between the body difference and the draining material is provided, and the body difference and the draining material are attached to the outer wall panel on the lower floor and the outer wall panel on the upper floor at the factory in advance, and After attaching the tight material to at least one of the gap and the draining material in the longitudinal direction of both members, it is transported to the construction site, and then the outer wall panels on the upper and lower floors in a state where the tight material is pressed between the draining material and the body gap. Is attached to the frame, and a draining structure is formed between the outer wall panel on the lower floor and the outer wall panel on the upper floor. 10. A drainage member attached along an upper end surface of an outer wall panel on a lower floor, and a draining member attached along a lower end edge of an outer wall panel on an upper floor and having a projecting portion facing the barrel difference, It is equipped with a tight material provided in the longitudinal direction of both members in the gap between the body difference and the draining material, and the draining material is attached to the outer wall panel on the upper floor at the factory in advance and then transported to the construction site, and the outer wall on the lower floor. After transporting the panel to the construction site and installing the body difference, at least one of the body difference and the draining material is attached with the tight material over the longitudinal direction of both members, and after this is completed, the tight material is drained. A construction method in which the outer wall panels of the upper and lower floors are attached to the frame while being pressed by the material and the body gap, and a draining structure is formed between the outer wall panel of the lower floor and the draining panel of the upper floor. 11. The outer wall panel on the lower floor constitutes the outer wall of the lower-floor building unit, the outer wall panel on the upper floor constitutes the outer wall of the upper-floor building unit, and the draining member is the upper floor. The draining structure is provided between the outer wall panel of the lower floor building unit and the outer wall panel of the upper floor building unit according to claim 9 or 10, wherein the draining structure is attached so as not to project downward from the lower end of the building unit. Construction method to be formed.