JP2003082781A - Dry waterproofing method for outer wall panel joint, waterproofing device for joint and outer wall panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dry waterproofing method for joint performed from the inside of a building, and a waterproofing device for joint conformable to dispersion of joint width. SOLUTION: In this dry waterproofing method, an outer wall panel erecting process for raising and fixing outer wall panels 20 provided with gaskets 30 so that the gaskets 30 are mutually opposed through a joint M is performed. A water stopping plate inserting process for inserting a water stopping plate 10 to the opposed gaskets 30 is then performed. The water stopping plate 10 is installed between the outer wall panels 20 through the gaskets 30, whereby the joint M is waterproofed. In this waterproofing device for joint, the gasket 30 is formed of a gasket base part 31 and a water stopping bead 32, and fixed with an opening part 31a being turned to the side end part of the outer wall panel 20. The gaskets 30 of the outer wall panels 20 are arranged opposite to each other, and the stopping plate 10 is installed to the gasket 30 arranged in the opposed positions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dry waterproofing method for an outer wall panel joint, a joint waterproofing device and an outer wall panel, and more particularly to an outer wall panel provided with a gasket and a water blocking plate for waterproofing the joint on the outer wall panel of a building. The present invention relates to a dry waterproofing method, a joint waterproofing device, and an outer wall panel to be used.

[0002]

2. Description of the Related Art When constructing a building such as a house,
The panel construction method is being introduced in order to improve the completeness of parts in the factory as much as possible and reduce the work items at the construction site. For example, the outer wall of a building made by panel construction is
It is formed by arranging a plurality of outer wall panels at predetermined positions. The outer wall thus formed needs to be waterproofed at joints between adjacent outer wall panels.

As a method of waterproofing the joint, there is a method of filling the joint with caulking material on site. In this method, first, a backup material made of urethane foam rubber or the like is pressed into the joint from the surface side of the joint to a predetermined position, and a primer is applied. Next, the caulking material is filled from the joint surface side, and finally the caulking material surface side is shaped with a spatula or the like. The backup material has a cross section that is wider than the width dimension of the joint, and is compressed and deformed by being press-fitted into the joint to perform self-holding. The backup material elastically holds the adjacent outer wall panel, absorbs the impact on the fore edge to secure the two-sided adhesion of the caulking material, and prevents the caulking material from flowing out to the back side of the joint.

However, in the technique of filling the joint with caulking material and treating the joint, press-fitting work of the backup material,
A lot of work such as primer coating work, caulking material filling work and caulking material shaping work is required, and high construction efficiency cannot be obtained. In particular, in the work of press-fitting the backup material, if the backup material is pushed too far in the thickness direction of the outer wall panel, the backup material may fall off from the back of the joint, so that skill is required. Also,
There are restrictions on workable time, curing time, etc. in the application of the primer and the filling of the caulking material.

In addition to the method of filling the joint with the caulking material, there is a dry waterproofing method of inserting a dry joint gasket previously formed of a synthetic resin or the like into the joint in order to perform the waterproof treatment of the joint more easily. The dry joint gasket has an engaging portion having a width dimension larger than the joint width, and the joint is filled by press-fitting the engaging portion into the joint. Thus, since the dry joint gasket can be waterproofed by simply inserting it into the joint, workability can be improved without requiring skill.

However, in the method of waterproofing by inserting the dry joint gasket into the joint, since a fixed type according to the width of the joint is used, when an error occurs in the joint width when the outer wall panel is mounted, There was a problem that we could not respond.

In the conventional waterproof treatment of joints,
Whether using caulking material or dry joint gaskets, work on the front side of the outer wall panel,
That is, since the work is performed from the outside of the building, it is necessary to secure a work space in which at least a worker can work outside the building. However, in recent years, with the increasing density of buildings, especially in urban areas, there has been a problem that it is difficult to secure a work space on the front side of the building because the location intervals between the buildings are narrow. Further, in order to perform the joint treatment work on the upper floors of the building, a larger space is required to construct a work scaffold on the outer wall surface side or to arrange a mobile work scaffold.

In order to solve the above-mentioned problems, techniques for improving the joint structure have been proposed. For example, in FIGS.
There is a joint material 102 shown in FIG. As shown in FIG. 14, the joint material 102 is roughly composed of a joint base material 106, a sealing material 108, a core material 110, and a lid 112. Then, as shown in FIG. 13, at the mouth portion 116 between the side plates 114, 114 of the joint base material 106, the sealing material 10 filled between the side plates 114, 114 is provided.
A lid 112 for preventing the outflow of the fluid 8 is inserted.

Then, after the joint base material 106 is filled with the sealing material 108 from the inside of the outer wall panel 20 of the building into the joint groove opening portion, the core material 110 is inserted between the both side plates 114 of the joint base material 106. By press-fitting, the joint base material 106 is firmly locked between both inner side walls W of the joint groove,
With the press-fitting of the core material 110, the side plate 11 of the joint base material 106
The sealing material 108 is extruded from the large number of holes 122, 122 ... Created in the nozzle 4 to waterproof the joints (FIG. 14). Here, the sealing material 1
08 is filled in the space S1 surrounded by the pair of seal tongues 120a and 120b and the inner wall W of the joint groove, and the remaining sealing material 108 is the seal tongue 12 on the mouth side of the joint groove.
0a is spread and flows into the space S2 between the locking flange 123 of the joint base material 106 and the seal tongue 120a,
The sealing material 108 does not protrude to the outside of the joint material 102 due to the variation in the joint width. (See, for example, JP-A-11-140997.)

According to the above-mentioned prior art, since the joint material is waterproofed by inserting the joint material 102 in the direction from the inside to the outside of the building, a work space in which at least an operator can work is provided outside the building. There is no need to secure it. Further, since an extra accommodating area for the sealing material 108 is ensured corresponding to the variation in the joint width, the sealing material 108 does not protrude to the outside of the joint material 102 due to the press-fitting of the core material 110, and the sealing material 108 is prevented. Can flow and the joints can be waterproofed even if the joints have a slight variation in width.

[0011]

However, according to the method of inserting a fixed size joint base material into the joint from the indoor side to the outdoor side, for example, a mounting error of the outer wall panel occurs and the outer wall panel is viewed from the outdoor side. When the joint has a C-shape or an inverted C-shape and the upper width and the lower width of the joint are significantly different, the seal tongues 120a and 120b and the inner wall of the joint groove are not provided. There are places where the supporting pressure with W cannot be obtained sufficiently. In such a state, there is a disadvantage that a sufficient waterproof effect cannot be obtained and it is not possible to sufficiently cope with an attachment error of the outer wall panel. Furthermore, when the joint base material 106 made of a soft synthetic resin is directly exposed to sunlight,
There was a problem that durability was difficult due to aging.

An object of the present invention is to provide a dry waterproofing method for joints on outer wall panels which can be easily carried out from the inside of a building. Another object of the present invention is to provide a joint waterproofing device for an outer wall panel, which can sufficiently cope with a variation in joint width caused by a mounting error of the outer wall panel. Yet another object of the present invention is to provide a uniform and higher quality exterior wall panel with a gasket.

[0013]

According to the dry waterproof method according to claim 1 of the present invention, the above-mentioned problem is a dry waterproof method for waterproofing joints between outer wall panels. An outer wall panel standing step of standingly fixing the outer wall panel provided with the gaskets so that the gaskets face each other and facing a joint, and a water blocking plate inserting step of inserting a water blocking plate into the facing gasket of the outer wall panel, ,
And the water blocking plate is mounted between the outer wall panels via the gasket.

As described above, only by mounting the water blocking plate on the gasket, the outdoor side and the indoor side are completely cut off, and the waterproof treatment can be performed on the joints of the outer wall panel. Therefore, the joints can be easily waterproofed from the indoor side, so that it is not necessary to construct a scaffolding outdoors, and the waterproofing can be performed even when a small site or an obstacle is right next to the building. Further, since the water blocking plate inserting step does not require any special skill, it is possible to exert a stable waterproof effect without being affected by the skill of the builder.

Further, in the water blocking plate inserting step, the water blocking plate is inserted from the upper end of the gasket positioned on the upper end side of the outer wall panel toward the lower end of the gasket positioned on the lower end side of the outer wall panel. In the step, an engaging portion is formed in the vicinity of the lower end when the mounting of the water blocking plate is completed, the tension member is locked to the engaging portion, and the tension member is pulled downward along the joint. It is suitable to carry out.

That is, by performing the water blocking plate inserting step using the tension member, the water blocking plate can be easily inserted into the gasket even when the resistance from the gasket at the time of inserting the water blocking plate is large.

Further, according to the joint waterproofing device of the third aspect of the present invention, there is provided a joint waterproofing device for waterproofing joints between outer wall panels, the waterproofing device being an outer wall panel. A gasket and a water blocking plate, the gasket having an opening on a side surface, and a gasket base having a U-shaped cross section, and a flexible base projecting from each of the facing inner surfaces of the gasket base. A water blocking bead, and an opening in the gasket base portion is fixed in the vicinity of a side end of the outer wall panel facing the side end direction of the outer wall panel, and the outer wall panel is arranged at a position where the gaskets face each other. The water blocking plate can be solved by mounting the water blocking bead in a state where the water blocking bead is bent and attached to the gaskets which are arranged at opposing positions.

That is, since this is a waterproof device in which the water blocking plates are attached to the gaskets arranged at the opposite positions, it is possible to exert a sufficient waterproof effect even when the joint width largely deviates from the reference value. It is possible.

Further, according to the outer wall panel of the present invention, the above object is to provide a face material which constitutes the front surface of the outer wall panel, a base fixed to the back surface of the face material, and a base fixed to the base. An outer wall panel including a panel frame and a gasket, wherein the base is fixed to the back surface of the face material such that an end portion of the base material is located inside an end portion of the face material. Is fixed to the back surface of the base,
The gasket has an opening on a side surface, and is composed of a gasket base portion having a U-shaped cross section, and flexible water blocking beads protruding from each of the facing inner side surfaces of the gasket base portion. This is solved by the fact that the opening in the gasket base faces the side edge direction of the outer wall panel and is fixed near the side edge of the outer wall panel.

That is, according to the outer wall panel of the present invention,
Since the gasket can be installed in a manufacturing facility such as a factory as one member that composes the outer wall panel together with the surface material, the base, and the panel frame, compared to the case where the gasket is installed at the site where the outer wall panel is installed in a building or the like. It is possible to provide a uniform and higher quality outer wall panel with a gasket.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a dry waterproofing method for waterproofing joints M between outer wall panels 20, a waterproofing device for joints M for waterproofing joints M between outer wall panels 20, and an outer wall. It relates to the panel 20.

The steps in the dry waterproofing method are as follows. First, an outer wall panel erection step is performed in which the outer wall panel 20 provided with the gasket 30 near the side end is erected and fixed so that the gaskets 30 face each other and face the joint M. Next, a water blocking plate inserting step of inserting the water blocking plate 10 into the gaskets 30 of the outer wall panel 20 facing each other is performed. Then, the joint M between the outer wall panels 20 is waterproofed by mounting the water blocking plate 10 between the outer wall panels 20 via the gasket 30.

In the water blocking plate inserting step, the water blocking plate 10 is inserted from the upper end of the gasket 30 located on the upper end side of the outer wall panel 20 toward the lower end of the gasket 30 located on the lower end side of the outer wall panel 20. As the engaging portion 1 near the lower end when the water blocking plate 10 is completely attached.
1 is formed, the tension member 60 is locked to the engaging portion 11, and the tension member 60 is pulled downward along the joint M.

Furthermore, the joint waterproofing device of the present invention comprises an outer wall panel 20, a gasket 30, and a water blocking plate 10.
, And the gasket 30 has an opening 31a on the side surface.
And a gasket base 31 having a U-shaped cross section, and inner side surfaces 31 b, 31 of the gasket base 31 facing each other.
b, and the opening 31a in the gasket base 31 faces the side end direction of the outer wall panel 20, and is fixed near the side end of the outer wall panel 20. The gaskets 30 are arranged at positions facing each other, and the water blocking plate 10 is attached to the gaskets 30 arranged at the facing positions with the water blocking beads 32 bent.

Further, the outer wall panel 20 of the present invention includes a face material 21 constituting the front surface of the outer wall panel 20, a base 22 fixed to the back surface of the face material 21, and a panel frame 23 fixed to the base. An outer wall panel 20 including a gasket 30 and a base material 22 such that an end portion 22a of the base material 22 is located inside an end portion 21a of the surface material 21.
, The panel frame 23 is fixed to the back surface of the base 22, the gasket 30 has an opening 31a on the side surface, and a gasket base 31 having a U-shaped cross section, and an inner surface 31b facing each other in the gasket base 31, 31 b, each of which is formed of a flexible water blocking bead 32, and the opening 3 in the U-shaped gasket base 31.
The outer wall panel 2 is provided with 1a facing the side end direction of the outer wall panel 20.
It is fixed near the side edge of 0.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The members, arrangements, and the like described below do not limit the present invention and can be variously modified within the scope of the gist of the present invention.

1, FIG. 2, FIG. 3, and FIG. 4 show an embodiment according to the present invention. FIG. 1 is an explanatory view showing a dry waterproof method for joints, and FIG. 2 is an explanation for a waterproof device for joints. 3 and 4 are perspective views of the outer wall panel 20, and FIG. 4 is a plan view of the outer wall panel 20 as viewed from the indoor side.

The outer wall panel 20 of this embodiment is shown in FIGS.
As shown in, the face material 21 that constitutes the surface of the outer wall panel
, Base 22, panel frame 23, and gasket 3
It is composed of 0 and 0. In this embodiment, the base 22
Is fixed to the back surface of the face material 21 such that the end portion 22a of the base 22 is located inside the end portion 21a of the face material 21.
The panel frame 23 is an end portion 23a of the panel frame 23.
Is fixed to the back surface of the base 22 so as to be located inside the end 21 a of the face material 21 and outside the end 22 a of the base 22. The gasket 30 includes a face material 21 and a base 22.
And the outer wall panel 20 in contact with the panel frame 23.
Is fixed near the side edge of the.

In this embodiment, the face material 21 and the panel frame 23 are fixed to each other via the base 22 by a joining means such as a screw or an adhesive. The face material 21 is formed of a ceramic outer wall material, a waterproof plywood, or the like. The panel frame 23 is formed, for example, by frame-forming a metal long member having a U-shaped cross section into a rectangular shape by welding or the like. A space surrounded by the panel frame 23 framed in a rectangular shape is filled with a heat insulating material such as glass wool or urethane foam.

As shown by the broken line in FIG. 4, a brace 24, which is a long metal member, is fixed to the inside of the panel frame 23 framed in a rectangular shape by welding or the like to improve the strength of the panel frame 23. Is suitable. In the above embodiment, the panel frame 23 is fixed so that the end portion 23a of the panel frame 23 is located inside the end portion 21a of the face material 21, but the outer wall panel standing step described below is performed. The fixing position of the panel frame 23 can be changed according to the fixing method of the outer wall panel 20 in the above.
For example, when the outer wall panel 20 is viewed from the indoor side, the end portion 23a of the panel frame 23 and the end portion 21a of the face material 21 may be fixed so as to be disposed at substantially the same position.

The gasket 30 is a member for mounting the water blocking plate 10 for waterproofing the joints M between the outer wall panels 20 to the outer wall panels, and is made of a soft synthetic resin such as PVC.

As shown in FIG. 3, the gasket 30 of this embodiment has an opening 31a on its side surface, a gasket base 31 having a U-shaped cross section, and a gasket base 31 having a U-shaped cross section.
And a plurality of flexible water blocking beads 32 projecting from it. The water blocking bead 32 protrudes from each of the facing inner side surfaces 31b, 31b of the gasket base 31, and has a length that is at least half the distance between the inner side surfaces 31b, 31b and shorter than the distance between the inner side surfaces. Is formed so as to project. The length of the water-stopping bead 32 is the inner surface 31b, 31b.
The reason why the length is more than half of the distance is to widen the contact area between the water blocking bead 32 and the water blocking plate 10 to enhance the water blocking capability. In this embodiment, the inner surface 31b of the gasket base 31 which faces the gasket 31 is
3 pieces of water-stop beads 3 from 2 pieces each from 31b
2 is provided so as to project.

Therefore, in the present embodiment, the four water-stop beads 32 protrude from the alternating positions so that the water-stop beads 32 protruding from the opposing inner side surfaces 31b, 31b do not come into contact with each other. The inner surface 31b which opposes,
The water blocking beads 32 projecting from 31b may project so as to slightly contact each other. Further, instead of projecting from alternate positions, they may project from opposing positions of the opposing inner side surfaces 31b, 31b.

The water-stopping bead 32 of this embodiment has a tapered shape, but may have a rectangular cross section. Further, the length of the water stop bead 32 is determined by the inner side surface 31.
Even if the length is less than half the distance between b and 31b,
Considering the thickness of the water blocking plate 10, it is sufficient that the four water blocking beads 32 have such a length that they can surely have contact points with the water blocking plate 10.

The gasket 30 including the gasket base 31 and the water blocking bead 32 having the above-described structure is the gasket base 31.
Is fixed to the vicinity of the side end of the outer wall panel 20 while being in contact with the face material 21, the base 22, and the panel frame 23 so that the opening 31a of the outer wall panel 20 faces the side end of the outer wall panel 20. The gasket 30, the face material 21, the base 22, and the panel frame 23 are fixed to each other with an adhesive, a tape, or the like. In this embodiment, the gasket 30 is fixed to the face material 21, the base 22 by the butyl tape. The water between the panel frame 23 and the panel frame 23 is stopped.

In this embodiment, the gasket 30 is the face material 2
1, the base 22, the panel frame 23 and the outer wall panel 2
It is incorporated in a manufacturing facility such as a factory as one member constituting 0. Therefore, the outer wall panel 20 is attached to a building or the like.
It is possible to provide the uniform and higher quality outer wall panel 20 including the gasket 30 as compared with the case where the gasket 30 is mounted on the site where the gasket 30 is installed.

As shown in FIG. 7, the gasket base 3
A water blocking bead 32 may be provided on the surface contacting the face material 21 of 1 and the surface contacting the panel frame 23 to prevent water from flowing between the gasket 30 and the base 22. In addition, as shown in FIG.
The gasket 33 may be provided with an extending portion 33 extending along a, and the panel frame 23 and the gasket 30 may be formed so that the extending portion can be fixed to each other by a fixing tool such as a screw. By forming in this way, the gasket 30 is firmly fixed to the panel frame 23, and it is possible to prevent the gasket 30 from coming off due to aging. Also, in the above embodiment, 4
Although the gasket 30 including the water blocking beads 32 is shown, the waterproof effect may be further enhanced by increasing the number of the water blocking beads 32 as shown in FIG. 9.

The water blocking plate 10 is a strip-shaped plate material having a thickness capable of withstanding insertion resistance when it is inserted into the gasket 30. In the present embodiment, the material of the water blocking plate 10 is stainless steel, but other than that, a material obtained by subjecting another metal to rust prevention, a synthetic resin, or the like may be used. Further, the water blocking plate 10 of this embodiment has a smooth convex shape.
As described above, since the water blocking plate 10 has the convex shape, even if the water blocking plate 10 is relatively thin, the rigidity in the convex direction of the water blocking plate 10 can be improved and the handling property at the time of construction can be improved. It can be rolled, which is convenient for transportation.

By bending the upper end of the water blocking plate 10 as shown in FIG. 6, when the water blocking plate 10 is inserted into the gasket 30, the water blocking plate 10 is fixed at the upper end of the outer wall panel 20. Can be hung. Further, in the above embodiment, the example in which the water blocking plate 10 is bent in one direction to form a convex shape is shown, but in consideration of designability,
Water stop plate 1 having a cross-sectional shape shown in FIGS. 10 and 11.
It may be 0. Further, as shown in FIG. 12, the processing cost of the water blocking plate 10 may be suppressed as a simple plate having a rectangular cross section.

As shown in FIG. 1, the dry waterproofing method for waterproofing the joints M between the outer wall panels 20 in this embodiment includes the following steps of the outer wall panel standing step and the water blocking plate inserting step. Is done like.

First, an outer wall panel standing step of standing and fixing the outer wall panel 20 provided with the gasket 30 having the above structure is performed. In the outer wall panel standing step in this embodiment,
The outer wall panel 20 and the pillar member 40 are fixed to each other by bolts so that both side surfaces of the pillar member 40 fixed in advance to a building or the like are sandwiched by the panel frames 23 of the plurality of outer wall panels 20, but other jigs may be used. It may be fixed by using it. At this time, as shown in FIG. 1, the outer wall panels 20 are vertically fixed so that the gaskets 30 of the adjacent outer wall panels 20 face each other and face the joint M.

In the step of standing the outer wall panel in the present embodiment, an example of fixing the outer wall panel 20 by the method of fixing the pillar member 40 and the outer wall panel 20 which are fixed to the building in advance has been shown. The outer wall panel 20 may be fixed by a method. For example, a runner for supporting the top and bottom of the outer wall panel 20 is fixed in advance to a building or the like, and after the outer wall panel 20 is temporarily fixed to the runner, a column member fixed to the building or the like between the panel frames 23. There is a method of fixing the outer wall panel 20 to a building or the like by inserting 40 and fixing the column member 40 and the panel frame 23 with a fixing tool such as a bolt. In addition, a pillar member 40 is provided between the outer wall panels 20.
There is a method in which the outer wall panel 20 is fixed to a building or the like only by a runner without providing the above, and the panel frames 23 of the outer wall panels 20 adjacent to each other are directly fixed by fasteners such as bolts.

In the outer wall panel standing step, the outer wall panel 20 is not completely fixed to a building or the like, but only temporarily fixed, and after the water blocking plate inserting step, which will be described later, is completed, the pillar member 40 and the panel frame 23. The outer wall panel 20 may be completely fixed to a building or the like by fixing.

Next, a water blocking plate inserting step of inserting the water blocking plate 10 into the opposed gaskets 30 is performed. In the water blocking plate inserting step in the present embodiment, the water blocking plate 10 is inserted from the upper end of the gasket 30 positioned on the upper end side of the outer wall panel 20 which is already fixed upright to the gasket 30 positioned on the lower end side of the outer wall panel 20. Toward the bottom edge of. At this time, it is performed so that the convex side of the water blocking plate 10 faces the indoor side of the outer wall panel 20.

According to the above-mentioned dry waterproofing method, only by inserting the water blocking plate 10 into the gasket 30, the outdoor side and the indoor side of the joint are completely cut off, and the joint M of the outer wall panel 20 can be waterproofed. Therefore, joint M
Because the waterproof treatment of can be easily done from the indoor side,
There is no need to build scaffolding outdoors, and even if there is a small site or an obstacle near the building, it can be waterproofed. Further, since the water blocking plate inserting step does not require any special skill, it is possible to exert a stable waterproof effect without being affected by the skill of the builder. Furthermore, since the water blocking plate 10 is simply inserted into the gasket 30, the outer wall panel 20 and the water blocking plate 10 can be easily removed during reforming, for example.

The water blocking plate 10 may be manually inserted, but when the outer wall panels 20 are continuously installed at a long distance in the vertical direction, the water blocking plate 10 may be inserted.
Since the resistance from the gasket 30 at the time of inserting is increased, it is efficient to use a tool for inserting the water blocking plate 10. For example, as shown in FIG.
The engaging portion 11 is formed in the vicinity of the lower end when the device is used as a gasket, and the tension member 60 is locked to the engaging portion 11. Then, the pulling member 60 is passed from the upper end to the lower end of the joint M, and the pulling member 60 is easily pulled by the tensioner 51 downward from the lower side of the outer wall panel 20 along the joint. Can be attached. Of course, the wire drawing machine 5
The pulling member 60 may be pulled by manual force instead of 1.

In this embodiment, the engaging portion 11 is formed by fixing an L-shaped hook member to the water blocking plate 10 by welding, an adhesive, a bolt, or the like, but in addition, a part of the end portion of the water blocking plate is used. May be bent to form the engaging portion 11. A known stainless wire is used for the tension member 60. The tensioning machine 51 may be of any type as long as it can pull the tension member 60. However, considering that the construction site is a narrow space, it is preferable to use the smallest possible size. For example, there is a known wire tensioner 51 having a ratchet function for drawing a stainless steel wire.

Further, it is advisable to use a wire drawing device so that the work of pulling the wire can be performed easily. For example, in FIG.
There is a wire tension assisting tool 50 including a wire tensioning machine 51, a rod member 52, a roller 53, and a rod supporting member 54 as shown in FIG.
The wire-stretching support tool 50 has a configuration in which a roller 53 is pivotally mounted near the tip of a rod member 52, and a small wire-stretching machine 51 is fixed near the hand of the rod member 52. The support member 54 is provided.

In this embodiment, the wire support tool 50 is mounted on the mounting member 41 on which the outer wall panel 20 is mounted by using the rod supporting member 54 so that the roller 53 is arranged near the lower end of the joint.
Is fixed. The wire drawing assist tool 50 may be fixed to the panel frame 23. Then, the pulling member 60 whose one end is locked to the engaging portion 11 is pulled by being wound up by the wire tensioner 51 via the roller 53, and the water blocking plate 10 is inserted from the upper end to the lower end of the gasket 30. To do. By performing the water blocking plate inserting step using the tension member 60 in this manner, the water blocking plate 10 is attached to the gasket 30.
Even if the resistance from the gasket 30 at the time of inserting into the gasket is large, the water blocking plate 10 can be easily inserted into the gasket 30.

The joint M between the outer wall panels 20 can be waterproofed by a method other than the dry waterproofing method described above. In the dry waterproofing method described above, the outer wall panel standing step is followed by the water blocking plate inserting step, but in the present embodiment, the work of standing one outer wall panel 20 and one stopping step. The work of inserting the water plate 10 into the gasket 30 is alternately performed as follows.

First, one outer wall panel 20 is vertically fixed. Also in this case, the outer wall panel 20 may be fixed to the pillar member 40 that is previously fixed to the building or the like as described above, or a runner for supporting the upper and lower sides of the outer wall panel 20 may be temporarily provided in the building or the like. After fixing and temporarily fixing the outer wall panel 20 to the runner, the panel frame 2
The column member 40 fixed to a building or the like may be inserted beside 3 to fix the column member 40 and the panel frame 23 together. Alternatively, the column member 40 may not be provided on the outer wall panel 20, and the outer wall panel 20 may be formed only by the runner. May be fixed to a building or the like. The difference from the above embodiment is that a plurality of outer wall panels 20 are not fixed to a building or the like at a time, but only one outer wall panel 20 is fixed.

Next, one end of the water blocking plate 10 is inserted into the gasket 30 of the fixed outer wall panel 20 from the opening 31a side of the gasket base 31. Then, after the insertion of the water blocking plate 10 is completed, another outer wall panel 20 is fixed to the side of the already fixed outer wall panel 20, and at the same time, the other side end of the water blocking plate 10 is newly fixed. Insert into the gasket 30 of. In this embodiment,
By repeating this operation, the water blocking plate 10 is attached to the joint M between the outer wall panels 20 to perform the waterproof treatment.

As described above, by inserting the water blocking plate 10 from the lateral direction of the gasket 30, compared with the case of performing the work of inserting the water blocking plate 10 from the upper end to the lower end of the gasket 30, one sheet of water blocking plate is inserted. The time required for the work of inserting the water plate 10 can be shortened.

The joint waterproofing device in this embodiment, which is formed by the dry waterproofing method described above, has the structure shown in FIG. 2, for example. That is, the waterproof device according to the present embodiment includes the outer wall panel 20 and the gasket 30 having the above configuration.
And the water stop plate 10.

The water blocking plate 10 is attached to the gasket 30 with the water blocking beads 32 protruding from the gasket base 31 bent. At this time, the water blocking plate 10 has the first water blocking bead 32a and the second water blocking bead 32b protruding from the facing inner side surfaces 31b, 31b of the gasket base 31.
And the third water blocking bead 32c and the fourth water blocking bead 32d. By mounting the water blocking plate 10 on the gasket 30 in this manner, a supporting pressure is generated between the water blocking bead 32 and the water blocking plate 10, and this supporting pressure causes a space between the water blocking plate 10 and the gasket 30. Control the inflow of water.

In the waterproof device according to this embodiment, the second water blocking bead 32b projecting farthest from the opening 31a of the gasket base 31 comes into contact with the water blocking plate 10 at the position closest to the end of the water blocking plate 10. To do. Therefore,
The clearance C1 from the contact portion between the second water blocking bead 32b and the water blocking plate 10 to the end of the water blocking plate 10, and the protruding position of the second water blocking bead 32b from the inner surface of the gasket base 31 facing the opening 31a. Even if a large difference in the width of the joint M occurs due to an attachment error of the outer wall panel 20, it is possible to exhibit a stable waterproofing effect sufficiently corresponding to the error by increasing the clearance C2 up to.

For example, when the outer wall panel 20 is viewed from the outside of the room, the joint M may have a V shape, and an error may occur such that the upper width and the lower width of the joint M are significantly different from each other. In this case, the width of the joint M becomes wider near the lower end of the joint M, but the second water blocking bead 32b and the water blocking plate 10 can contact each other within the range of the clearance C1. Further, the width of the joint M becomes narrow near the upper end of the joint M, but the water blocking plate 10 can be inserted into the joint M within the range of the clearance C2. That is, the clearance C
1. By designing the clearance C2 to be wide, a sufficient waterproof effect can be exerted even when the joint width largely deviates from the reference value.

Further, the water blocking plate 10 is replaced by the gasket 3.
In the state of being inserted in 0, the primary decompression space 34a, the secondary decompression space 34b, and the tertiary decompression space 34c surrounded by the water stop plate 10, the gasket base 31 and the water stop bead 32.
With the formation of water, even if water tries to enter the room from the contact portion between the gasket 30 and the water blocking plate 10, it is possible to prevent the water from entering the room due to the pressure reducing action of the three decompression spaces. , High waterproof effect can be obtained.

Here, the pressure reducing action of the primary decompression space 34a, the secondary decompression space 34b, and the tertiary decompression space 34c will be described. Consider, for example, a case where rainwater blown from the outdoor side to the water blocking plate 10 at high pressure enters the primary depressurized space 34a by breaking a minute gap at the contact portion between the first water blocking bead 32a and the water blocking plate 10. In this case, the rainwater entering through the minute gap enters the primary decompression space 34a, which is much wider than the gap, thereby reducing the pressure.

That is, the pressure of rainwater sprayed from the outside with high pressure is reduced in the primary decompression space 34a. Even if the rainwater that has entered the primary decompression space 34a further maintains a pressure that enters the secondary decompression space 34b from the contact portion between the second water blocking bead 32b and the water blocking plate 10, the rainwater pressure Will enter the two-dimensional pressure space, and will be reduced by the same principle as when rainwater enters the primary decompression space. Three-dimensional pressure space 3
4c also exhibits the same pressure reducing action as the primary decompression space 34a and the two-dimensional pressure space 34b. That is, in this embodiment, 3
A high waterproof effect can be obtained by the pressure reducing action of the two decompression spaces.

Further, since the gasket 30 made of a soft synthetic resin such as PVC of this embodiment is fixed to the back surface side of the face material 21 and is constructed so as not to receive sunlight directly, there is little fear of deterioration over time. .

[0062]

As described above, according to the joint dry waterproofing method of the present invention, only by mounting the water blocking plate on the gasket, the exterior side and the interior side are completely cut off, and the joint treatment of the outer wall panel is performed. be able to. Therefore, the joints can be easily waterproofed from the indoor side, so that it is not necessary to construct a scaffolding outdoors, and the waterproofing can be performed even when a small site or an obstacle is right next to the building. In addition, since the construction method does not require any special skill, it is possible to exert a stable waterproof effect without being affected by the skill of the builder. Furthermore, by using a tensile member when attaching the water blocking plate to the gasket, even if the resistance from the gasket when inserting the water blocking plate into the gasket is large, the water blocking plate can be easily inserted into the gasket. it can.

Further, since the joint waterproofing device of the present invention is a waterproofing device in which the gaskets provided at the opposite positions are fitted with the water blocking plates, even when the joint width largely deviates from the reference value. It is possible to exert a sufficient waterproof effect. Further, since the gasket is fixed to the back surface side of the face material and is configured not to receive sunlight directly, there is little fear of deterioration over time.

Further, according to the outer wall panel of the present invention, the gasket can be incorporated in a manufacturing facility such as a factory as a member constituting the outer wall panel together with the face material, the base, and the panel frame. It is possible to provide a uniform and higher quality outer wall panel provided with a gasket, as compared with a case where a gasket mounting operation is performed at a site where the gasket is installed.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a dry waterproofing method for joints of the present invention.

FIG. 2 is an explanatory view showing a joint waterproofing device of the present invention.

FIG. 3 is a perspective view of an outer wall panel of the present invention.

FIG. 4 is a plan view of the outer wall panel of the present invention.

FIG. 5 is an explanatory view showing a dry waterproofing method for joints of the present invention.

FIG. 6 is an explanatory view showing a water blocking plate having another shape.

FIG. 7 is an explanatory view showing a gasket having another shape.

FIG. 8 is an explanatory view showing a gasket having another shape.

FIG. 9 is an explanatory diagram showing a gasket having another shape.

FIG. 10 is an explanatory view showing a water blocking plate having another shape.

FIG. 11 is an explanatory view showing a water blocking plate having another shape.

FIG. 12 is an explanatory view showing a water blocking plate having another shape.

FIG. 13 is an explanatory diagram showing a conventional example.

FIG. 14 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

10 Water stop plate 11 Engagement part 20 exterior wall panels 21 Face material 21a Edge of face material 22 Base 22a Edge of base 23 panel frame 23a Edge of panel frame 24 braces 30 gasket 31 Gasket base 31a opening 31b inner surface 32 still water bead 32a 1st water stop bead 32b 2nd still water bead 32c 3rd still water bead 32d 4th still water bead 33 Extension 34a Primary decompression space 34b Secondary decompression space 34c Third decompression space 40 pillar members 41 Placement member 50 Zhang Line Support Tool 51 wire tension machine 52 Rod member 53 Roller 54 Rod support member 60 Tension member 102 joint material 106 joint base material 108 Sealant 110 core material 112 lid 114 side plate 116 mouth 120a, 120b seal tongue 122 holes 123 Locking collar C1, C2 clearance M joint S1 space S2 space W inner wall

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 2E001 DA01 FA04 FA52 MA02 MA04                       MA13                 2E002 UA01 UA02 UB03 UB04                 2E162 BA02 BB10 CA00 CC01

Claims (4)

[Claims] 1. A dry waterproofing method for waterproofing joints between outer wall panels, wherein outer wall panels having gaskets in the vicinity of side ends are erected and fixed so that the gaskets face each other and face the joints. An outer wall panel standing step and a water stop plate inserting step of inserting a water stop plate into the facing gaskets of the outer wall panel are provided, and the water stop plate is mounted between the outer wall panels via the gasket. A dry waterproof method characterized by that. 2. The water blocking plate inserting step is to insert the water blocking plate from an upper end of the gasket located on an upper end side of the outer wall panel toward a lower end of the gasket located on a lower end side of the outer wall panel. In the step, an engaging portion is formed in the vicinity of the lower end when the mounting of the water blocking plate is completed, the tension member is locked to the engaging portion, and the tension member is pulled downward along the joint. The dry waterproofing method according to claim 1, which is performed. 3. A joint waterproofing device for waterproofing joints between outer wall panels, the waterproofing device comprising an outer wall panel, a gasket, and a water blocking plate, wherein the gasket is provided on a side surface. The gasket base portion is provided with an opening and has a U-shaped cross section, and a flexible water blocking bead protruding from each of the opposing inner side surfaces of the gasket base portion, and the opening in the gasket base portion is closer to the outer wall panel side. It is fixed near the side end of the outer wall panel facing the end direction, the outer wall panel is arranged at a position where the gaskets face each other, and the water blocking plates face each other in a state where the water blocking beads are bent. A joint waterproofing device, characterized in that the waterproofing device is attached to the gasket arranged at a certain position. 4. An outer wall panel comprising a face material constituting a front surface of the outer wall panel, a base fixed to the back surface of the face material, a panel frame fixed to the base, and a gasket. The base is fixed to the back surface of the face material so that the end portion of the base material is located inside the end portion of the face material, the panel frame is fixed to the back surface of the base material, and the gasket has an opening on a side surface. The gasket base has a U-shaped cross section, and the flexible water blocking beads projecting from the inner surfaces of the gasket base facing each other, and the opening in the U-shaped gasket base has an outer wall panel side. An outer wall panel, which faces the end direction and is fixed near a side end of the outer wall panel.