JP3034768B2 - Drainage structure between outer wall panels and its construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage structure between outer wall panels formed at a junction 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 the upper and lower floors, a draining structure between the outer wall panels on the upper and lower floors is disclosed in, for example, JP-A-63-51547. A long gasket is inserted into the joint between the upper and lower outer wall panels, and a water receiving member for covering the lower end of the gasket is installed. A seal structure or the like is known in which a floor extends outward from an outer wall panel, a caulking material is filled as necessary, and a cover is attached to the outside of a joint.

[0003] However, since the gasket, caulking, cover and the like are mounted from outside the building,
Scaffolding must be installed outdoors, but it is difficult to secure space for scaffolding on narrow terrain. Further, according to this method, not only the on-site work is increased, but also a special craftsman is required, which is a factor of high cost. The waterproof performance differs depending on the skill of the craftsman, and the caulking and gasket are damaged by aging. There is a disadvantage that water leakage easily occurs.

In some cases, the outer wall panel constitutes an outer wall of a box-shaped building unit manufactured in a factory in advance. In such a building unit, the upper-floor building unit and the lower-floor building unit are carried to the site, and the upper-floor building unit is installed on the lower-floor building unit to construct a box-type unit building. At the lower end of the outer wall panel of the floor building unit, a draining material extending beyond the outer wall panel and extending below the lower end of the upper floor building unit is attached, and the upper floor building unit and the lower floor building unit are attached with the draining material. A method of covering the gap from outside of the room has been proposed.

[0005] According to this method, a stable waterproof performance can be obtained for the draining structure, and a decrease in the waterproof performance over time can be suppressed. However, since the draining material protrudes greatly downward from the lower end of the upper-floor building unit,
If the building unit is attached to an upper floor building unit in advance in a factory, it may be damaged during transportation, and eventually the building unit is installed from the outside of the building unit at the site. Therefore, as described above, scaffolding and equipment for safety are required, which not only increases construction costs but also makes it impossible to perform on-site construction depending on location conditions. In the specification of the present application, the upper floor and the lower floor mean two floors which are vertically adjacent to each other in a building having a plurality of floors.
The floor (lower floor) and the second floor (upper floor) or the third floor (lower floor) and the fourth floor (upper floor).

[0006]

SUMMARY OF THE INVENTION The present invention relates to a drainage structure between outer wall panels and a method for constructing the same, which eliminates scaffolding, reduces on-site construction, saves labor, and provides stable waterproof performance. The purpose is to provide.

[0007]

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

[0008] The exterior panel is outside the so-called unit building
When it is a wall , the drainer is attached so that it does not project below the lower edge of the upper-floor building unit. The tight material is composed of a lower tight material attached to the upper surface of the waist and an upper tight material attached to the lower surface of the overhang portion of the draining material, and the lower tight material and the upper tight material are pressed against each other and arranged .

The following configuration may be adopted. Above the body
Set up a water return wall on the surface, under the overhang of draining material
Drain legs are hanging on the surface, and the outer wall panel on the lower floor and the upper
Draining legs when draining structures are formed between floor exterior panels
The piece and the drain wall are between the lower floor outer wall panel and the upper floor outer wall panel
Placed on the outside of the tight material pressed against
Constitution. The upper end face of the lower floor of the outer wall panel, fixed at appropriate intervals a plurality of brackets, the protrusions positioning projection of the bracket provided with projections abutting the positioning projection in the barrel difference those having positioning protrusions A structure in which the body difference is placed and fixed on the upper surface of the bracket. Attach a cover to cover the gap between the body gap and the draining material from the outside of the room at the outside end of the body gap. Connecting the body difference between the horizontally adjacent outer wall panels by connecting pieces provided between the upper end portions thereof.

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

The following means may be employed. Exterior panel
When the floor is the outer wall of a so-called unit building,
Must not project below the lower edge of the upper-floor building unit.
Must be installed in the same way.

[0012]

The construction in which the body gap is attached to the upper end surface of the outer wall panel on the lower floor in advance eliminates the need for work from a high place from outside the building. At this time, the outer wall panel is a so-called unit type
When it is the outer wall of the building, if the draining material is attached to the outer wall panel on the upper floor of the building so that it does not project below the lower edge,
Just assemble the upper floor panel to the lower floor panel
To form a drainage structure between the upper and lower outer wall panels.
Allows for drainage during transport of building units
Is prevented from being damaged. The configuration in which the tight material is arranged between the body gap and the draining material in a pressed state eliminates variations in watertightness and airtightness between the outer wall panels and stabilizes waterproof performance. The tight material is airtight in the draining structure,
Provides a watertight function. Lower floor outer panel and upper floor outer panel
Draining of draining material on the outside of tight material pressed between flannels
The configuration to place the leg piece and the drain wall of the body at an interval,
Prevents rain and dust from reaching the tight material directly,
Improves tightness and airtightness, and suppresses deterioration of tight materials.
Can be controlled.

[0013] The bracket facilitates the positioning and mounting of the body gap. The cover covers the gap between the waist and the draining material from the outdoor side, adjusts the appearance of the outer wall, and also prevents rain wind from directly blowing into the interior of the draining structure. The connecting pieces interconnect the ends of the drainage structure between laterally adjacent outer wall panels. In the construction method of the present invention, the body difference is attached in advance at the factory along the upper end surface of the outer wall panel on the lower floor,
A configuration in which a draining material is attached in advance at the factory along the lower edge of the outer wall panel on the upper floor, and a tight material is attached to at least one of the body difference and the draining material in the longitudinal direction of both members, which reduces on-site construction. In addition, it is possible to easily and surely obtain a draining structure of the outer wall panel.

The lower-floor outer wall panel constitutes the outer wall of the lower-floor building unit, and the upper-floor outer wall panel constitutes the outer wall of the upper-floor building unit. The structure that is mounted so as not to protrude below the lower end of the lower floor building unit makes it possible to form a drainage structure between the upper and lower outer wall panels only by assembling the upper floor building unit with the lower floor building unit, and In addition, it is possible to prevent members constituting the drainage structure from being damaged during transportation of the building unit.

[0015]

FIG. 1 shows an outer wall panel 4a, 4b,
The present embodiment relates to an embodiment in which the outer walls of the building units 2 and 3 are configured. The draining structure 1 between the outer wall panels includes a lower beam building unit 2 in which an outer wall panel 4a is attached to an outer surface of a box (not shown) and a beam 13a assembled in a box shape, and a beam 13b assembled in a box shape. And it is comprised along the joint part of the upper-floor building unit 3 in which the outer wall panel 4b was attached to the outer surface of the pillar (not shown). The drain 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 drainer 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 gap 5 is mounted around the entire upper end of the lower-floor building unit 2, and in a cross section thereof, as shown in FIG. 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 provided upright toward the outdoor on the upper surface. Tight material 8
Is formed in a hollow cylindrical shape in cross section so as to increase elasticity, and at the lower end of the outer peripheral surface, a locking ridge 8 ′ whose tip is wider than the base end is integrally formed along the longitudinal direction. The ridge 8 ′ is engaged with the tight material fitting groove 7 of the body difference 5. Also, as shown in FIG. 2, the outside edge of the body difference 5 is bent downward to form a drainage guide piece 10, a support leg 11 is provided on the lower surface near the room, and an intermediate portion of the lower surface is provided. A positioning projection 12 is formed, and a fixing hole 15 a is formed between the projection 12 and the return wall 9.

In this embodiment, the body difference 5 is mounted on the upper end surface of the outer wall panel 4a of the lower floor building unit 2 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 room, and the outside of the fixed flat plate 16 is bent upward to protrude into the positioning projection 17.
Is formed, and a hanging piece 18 is formed by extending the outdoor end of the positioning projection 17 downward and abutting on the outer surface of the outer wall panel 4a. The hanging piece 18 is mounted on the indoor side surface of the hanging piece 18 on the upper surface of the outer wall panel 4a. The support piece 19 is extended. Further, a fixing hole 15b corresponding to the fixing hole 15a of the body gap 5 is formed in the positioning projection 17, and the fixing plate 15 is formed in the fixing plate 16.
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
Of the outer wall panel 4a is covered with a belt-shaped waterproof sheet 21 through the upper surface of the outer wall panel 4a. The waterproof sheet 21 is provided so as to straddle the upper surface of the beam 13 a 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 brackets 14 is on the upper surface of the panel frame 20a, and the support pieces 19 are on the upper surface of the outer wall panel 4a. Each of the brackets 14 is placed via the waterproof sheet 21 and the hanging piece 18 abuts on the outer surface of the outer wall panel 4a to position the bracket 14. 14 is fixed.

The positioning protrusion 1 of the bracket 14 is attached to the body difference 5.
7 and the tip of the support leg 11 is placed on the upper surface of the panel frame 20a via the waterproof sheet 21.
The protrusion 12 of the body difference 5 is positioned on the positioning protrusion 17 of the bracket 14.
The body gap 5 is positioned in contact with the indoor side surface of the
A screw 22b is screwed into the fixing hole 15b and the fixing hole 15b to fix the trunk difference 5 to the bracket 14. Note that the waterproof sheet 2
The bracket 1 and the bracket 14 are previously attached to the upper end surface of the outer wall panel 4a of the lower-floor building unit 2 at the factory, but the trunk difference 5 may be attached at the factory or at the site. All are the construction methods according to the present invention.

In this embodiment, at the connection end of the lower floor building unit 2 adjacent in the horizontal direction, the trunk difference 5 between the adjacent outer wall panels 4a is, as shown in FIG. It is connected via a connecting piece 27 provided over the bridge. The connecting piece 27 is provided between the tight material fitting groove 7 on the upper surface of the body gap 5 and the water return wall 9.
8 and a receiving piece 29 formed above the outdoor side of the connecting piece 28 and supporting the lower surface of the draining material 6. The connecting piece 28 is bridged between the upper faces of the adjacent body differences 5, and screws 22 c are attached to each end. By screwing into the part, the body difference 5 is connected. In the portion where the bracket 14 is disposed, the connecting piece 28 can be fixed by the screw 22b.

The drainer 6 is attached along the lower edge of the outer wall panel 4b of the upper floor building unit 3, as shown in FIG. The draining material 6 includes a vertical wall 23 attached to the indoor side surface of the panel frame 20b in the outer wall panel 4b,
Projecting portion 24 projecting from the lower end of vertical wall 23 to the outside of the room
A height positioning piece 25 is formed at an intermediate portion of the outdoor surface of the vertical wall 23 so as to be in contact with the lower surface of the panel frame 20b. Pieces 26 and 26a are formed. In the factory, the draining material 6 is formed in advance at the lower end edge of the outer wall panel 4b of the upper floor building unit 3 so as not to protrude from the lower edge of the unit 3 and the overhang portion 24 is formed along the lower end surface of the outer wall panel 4b. It is attached so as to extend to the outside of the room.

Drainage structure 1 between outer wall panels 4a, 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. Then, the packing 30 is attached along the circumferential direction of the building unit 2. In the case of the on-site attached body gap 5, it is mounted on the upper end surface of the outer wall panel 4a of the lower-floor building unit 2. Next, the body differences 5 of the adjacent lower-floor building units 2 are connected by the connection pieces 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 overhang portion 2 of the body gap 5 and the draining material 6
The tight material 8 is pressed by the draining material 6 because 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 no load is applied. Also,
Water return pieces 26, 26a of draining material 6 and water return wall 9 of body gap 5
Are located outside of the tight material 8 and
They will be spaced apart in the outward direction.

If necessary, packing is performed between the underside of the overhanging portion 24 of the draining material 6 and the return wall 9 of the trunk 5 and between the underside of the trunk 5 and the upper surface of the fixed flat 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 of the body gap 5, and the spacer is brought into contact with the outdoor side surface of the outer wall panel 4a to make the body gap 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 projecting portion 24 of the draining material 6, and an upper tight material 8b made of soft rubber or the like is formed in the tight material fitting groove 7' along the circumferential direction. It is fitted. On the other hand, the 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-floor building unit 2 and the lower-floor building unit 2 are assembled, the upper tight material 8b and the lower tight material 8a are pressed against each other.

Further, as shown in FIG. 6, a flat L-shaped corner metal fitting 31a is superimposed on the lower surface of the junction corner of the perpendicular body difference 5 at the outside corner and the inside corner of the lower floor building unit 2 in plan view. Then, the both ends of the corner fitting 31a and the ends of the respective trunk differences 5 are screwed together with the screws 22d to connect the perpendicular trunk differences 5 to each other. Also at the corners of the upper-floor building unit 3, a plane L-shaped corner fitting 31 b is superimposed on the lower surface of the junction corner of the projecting portion 24 of the orthogonal draining material 6, and both ends of the corner fitting 31 b and each draining material 6 Are screwed together with the screws 22e to connect the orthogonal drainage members 6 to each other. Since other configurations and construction methods are almost the same as those of the first embodiment, the same portions are denoted by the same reference numerals and description thereof will be omitted.

FIG. 7 shows a third embodiment. In contrast to the first embodiment, the overhanging portion 24 of the drainer 6 is shorter than those of the first and second embodiments, and is curved downward toward the outside of the room. The waterproof sheet 2 is not used on the upper end surface of the outer wall panel 4a of the lower-floor building unit 2.
1, a plurality of cover mounting members 34 are attached to appropriate locations on the outer surface of the trunk difference 5, and a cover 35 that covers the gap between the trunk difference 5 and the drainage material 6 from the outside of the room is provided via the cover mounting member 34. It is characterized in that it is attached to the body difference 5.

As shown in FIG. 8, the waist gap 5 has an inclined portion 37 mounted on the upper end surface of the outer wall panel 4a, and an upright wall 32 is formed at the indoor side edge of the outer wall panel 4a. A tight material fitting groove 7 is provided at the upper end, a tight material 8 is fitted into the tight material fitting groove 7, and a locking projection 35 is provided on the lower surface of the outdoor end of the tight material fitting groove 7. I have. The outdoor 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 below the mounting piece 33. Further, a plurality of protrusions 36 are provided on the lower surface of the inclined portion 37 as they are closer to the room, and the longer convex portions 36 are installed on the upper surface of the lower-floor building unit 2. Is formed.

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

The cover 35 is formed with a concave groove 42 at the middle part of the indoor side surface, which snap-engages with the bulging portion 40 of the cover attaching member 34, and an upper covering piece bent to the outdoor direction above the concave groove 42. A lower cover piece 44 is provided below the concave groove 42 and is bent below the concave groove 42 so as to be convex in the outdoor direction and extends below the external mounting piece 41 of the cover mounting member 34.

When assembling the upper-floor building unit 3 and the lower-floor building unit 2, at the site or in the factory, the height difference 5 is attached to the upper end surface of the outer wall panel 4 a of the lower-floor building unit 2 along the circumferential direction of the building unit 2. The cover mounting member 34 is disposed at an appropriate position on the outer surface of the body difference 5, and the fixing holes 15 d of the body difference 5 and the fixing holes 15
e into the outer wall panel 4a and the panel frame 20a by screwing the screws 22f to form the body gap 5 and the cover mounting member 3.
4 is attached to the lower-floor building unit 2. Further, at the site, the cover 35 is attached by snap-engaging the concave portion 42 with the bulging portion 40 of the cover attaching member 34, and the lower portion 5 and the fixed portion of the cover attaching member 34 are hidden by the lower cover 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 the first embodiment, and the tight material 8 is pressed by the overhanging portion 24 of the draining material 6. Then, the gap between the draining material 6 and the body difference 5 is covered by the upper cover piece 43 of the cover 35. Other configurations are almost the same as those of the first and second embodiments, and thus the description is omitted.

FIG. 10 shows a fourth embodiment. In contrast to the third embodiment, the swelling portion 40 is not formed in the cover attaching member 34, and a locking wall 45 having a locking concave portion is provided upright on the upper surface of the outdoor end of the inclined arm 38, so that the outside is formed. Mounting piece 4
1 is formed with an insertion groove 46 which opens upward in the middle part of the outdoor surface, and the cover 35 has a locking groove 42.
Is formed, a locking hanging piece 47 having a locking convex portion 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 with the locking concave portion of the locking wall 45 with the locking convex portion of the locking hanging piece 47.
6, the insertion piece 48 is inserted, and the cover attaching material 34 is inserted.
Mounted on Other construction and construction procedures are 3rd
Therefore, the same reference numerals are given to the same parts and the description is 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 constitute the outer wall of the building unit has been described as an embodiment, the drainage structure 1 of the present invention constitutes the outer wall by attaching the outer wall panels 4a and 4b to a normal building frame. Needless to say, it can be applied to the case. In this case, the indoor side of the waterproof sheet 21 in the embodiment is spread on the upper surface of the body edge to which the outer wall panels 4a and 4b are attached.

[0036]

According to the first aspect of the present invention, a so-called unit is provided.
Draining structure between the outer wall panels in Tsu DOO formula buildings is separated into the upper story building unit side and the lower story building unit <br/> side as draining material and cylinder difference and be completed only by combining the upper and lower since it is, upper and lower floors of the building in advance factory
It can be attached to the outer wall panel of the unit . In addition, there is no need to provide a scaffold outside the building to form a drainage structure at the site, and construction is possible even on a small land. As a result, the labor and material costs for assembling the scaffolding and safety equipment can be reduced, and the application cost can be greatly reduced. Since the tight material is provided in a pressed state between the drainage material and the body difference, the watertightness and airtightness of the drainage structure are improved, and the quality of the construction is not uneven.

Since the drainage material of the upper-floor building unit does not protrude downward from the building unit, there is no fear that the drainage material will be damaged during the manufacturing process at the factory, during transportation, and during on-site construction.

According to the configuration of the second aspect, the tightness of the tight material is high, the airtightness is high, the cushioning property is high at the joint, and the waterproof performance is maintained uniformly. Claim 3
According to the configuration described in the above, the drainage structure between the outer wall panels
Watertightness and airtightness are improved.
Can be suppressed. According to the configuration of the fourth aspect, deterioration of the tight material can be prevented, and the durability of the drainage structure can be improved.

According to the configuration of claim 5, by attaching the bracket to the outer wall panel on the lower floor in advance, it is possible to accurately and easily attach the trunk difference on site.
According to the configuration of claim 6, the gap between the outer wall panels on the upper and lower floors is closed by the cover that covers the gap between the body difference and the draining material, so that not only the appearance is good but also the waterproofness is increased. Further, the durability of the tight material located inside is improved. According to the configuration of claim 7, it is possible to reliably perform positioning and fixing of the body difference end portion, to secure continuity of the adjacent body difference, and to maintain the design of the building outer wall surface.

According to the configuration of claim 8, the drainage structure is formed between the outer wall panels simply by installing the upper floor outer wall panel above the lower floor outer wall panel at the site, which facilitates the construction and facilitates the construction. Less skill is required. Also, no scaffolding is required for construction. Furthermore, since the draining material of the upper floor building unit does not protrude downward from the building unit,
There is no fear that the draining material will be damaged during the manufacturing process, transportation and on-site construction at the factory.

[Brief description of the drawings]

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

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

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

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

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

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

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

[Explanation of symbols]

Reference Signs List 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 Drainage guide piece 11 Support leg 12 Projection 13a, 13b Beam 14 Bracket 15a, 15b, 15c, 15d, 15e Fixing hole 16 Fixed flat plate 17 Positioning projection 18 Hanging piece 19 Supporting piece 20a, 20b Panel frame 21 Waterproof sheet 22a, 22b, 22c, 22d, 22e, 22f Screw 23 Vertical wall 24 Overhanging part 25 Height positioning piece 26, 26a Water return leg piece 27 Connection piece 28 Connection piece 29 Receiving piece 30 Packing 31a, 31b Corner fitting 32 Upright wall 33 Mounting piece 34 Cover mounting material 35 Cover 36 Convex 37 Inclined part 38 Inclined arm 39 Rise piece 40 Swelling part 41 External mounting piece 42 Depression groove 43 Upper covering piece 44 Lower covering piece 45 Locking wall 46 Inserting groove 47 Locking hanging piece 48 Insertion piece

Continuation of the front page (56) References JP-A-63-35942 (JP, A) JP-A-59-80004 (JP, U) JP-A-63-169602 (JP, U) (58) Fields investigated (Int) .Cl. ⁷ , DB name) E04B 1/62-1/64 E04B 1/348

Claims (8)

(57) [Claims] 1. A trunk which is attached along the upper end surface of an outer wall panel of a building unit on a lower floor, and a projection which is attached along a lower edge of an outer wall panel of a building unit on an upper floor and which faces the trunk. An outer wall comprising a draining material having a tight material pressed between the body gap and the draining material, wherein the draining material is attached so as not to protrude below the lower edge of the upper-floor building unit. Drainage structure between panels. 2. A lower-floor building unit and an upper-floor building unit are arranged such that a lower tight member attached to an upper surface of a waist and an upper tight member attached to a lower surface of an overhang portion of a drainer are pressed against each other. The draining structure of an outer wall panel according to claim 1, wherein: 3. A drainage member attached along an upper end surface of a lower-floor outer wall panel, and a drainage member attached along a lower edge of the upper-floor outer wall panel and having an overhang portion facing the trunk difference, The body difference is raised on the upper surface and has a water return wall, the draining material has a draining leg piece hanging down on the lower surface of the overhanging part,
A tight material is pressed between the outer wall panel on the lower floor and the outer wall panel on the upper floor between the trunk and the drainer, and the drainer of the drainer and the drainer wall of the trunk are spaced apart on the outside of the tight material. A draining structure between outer wall panels, which is formed by disposing. 4. The draining structure between outer wall panels according to claim 1, wherein the tight material is provided in the gap between the body difference and the draining material, closer to the room. 5. An upper wall of a lower floor outer wall panel is fixed by a bracket, and the bracket has a positioning protrusion, and a plurality of brackets are fixed to an upper end surface of the outer wall panel at appropriate intervals. The projection is formed on the body difference, the body difference is placed on the upper surface of the bracket, and the projection is abutted on the positioning projection of the bracket and is fixed. Draining structure between open outer wall panels. 6. The cover according to claim 1, wherein a cover for covering a gap between the body gap and the draining material from the outside of the room is attached to an end of the body gap on the outdoor side. Drainage structure between painted exterior wall panels. 7. The method according to claim 1, wherein the body difference between the outer wall panels adjacent in the horizontal direction is connected by connecting pieces provided across the upper end portions. Drainage structure between outer wall panels described in the above. 8. The outer wall panel forms an outer wall of a building unit.
And a dewatering member having a cylinder difference mounted along the top surface of the lower floor of the outer wall panel, a projecting portion that faces the mounting Rutotomoni <br/> cylinder difference along the lower edge of the upper floor of the outer wall panel, A tight material provided in the gap between the waist and the draining material in the longitudinal direction of both members is provided, and the shank and the draining material are respectively applied to the lower floor outer wall panel and the upper floor outer wall panel at the factory in advance , and the draining material is Floor unit
Attach so that it does not protrude below the bottom line of
After attaching the tight material to at least one of the body difference and draining material in the longitudinal direction of both members, transport it to the construction site,
A construction method in which the outer wall panels on the upper and lower floors are attached to the frame while the tight material is pressed between the drainer and the body gap, and a drainage structure is formed between the outer wall panels on the lower floor and the upper floor panel.