JP7391636B2 - Exterior wall panels with gaskets and gaskets - Google Patents

Description

The present invention relates to gaskets and gasketed exterior wall panels.

For example, when constructing a steel-framed building in an urban area, there is often not enough space between the outer wall of the building to be constructed and the border of the neighboring property to assemble scaffolding. Alternatively, even if scaffolding could be erected, there may not be a space between the scaffolding and the exterior wall installation position for the exterior wall panel to fit in, or furthermore, there may not be space for installing the exterior wall panel.

Normally, if there is sufficient space between the scaffold and the location where the exterior wall is installed, the exterior wall panel lifted by a crane or other heavy equipment is dropped into this space, and the worker on the scaffold can move the exterior wall panel into place. Position it diagonally with the lower side facing the exterior wall installation location, and first insert the mounting bolts attached to the bottom end of the exterior wall panel into the grooves of the lower mounting brackets installed below the exterior wall installation location on each floor. Install. Then, using the engagement portion between the mounting bolt and the groove as a fulcrum, raise the upper part of the outer wall panel toward the outer wall installation position side, and rotate the upper part of the outer wall panel in an out-of-plane direction from the outdoor side to the indoor side. Align the bolt holes at the top of the panel with the bolt holes in the upper mounting bracket at the outside wall installation location. A through hole is formed by aligning both bolt holes, and the outer wall panel is attached by inserting a bolt into this through hole and tightening a nut.

In other words, in this construction, the lower end of the exterior wall panel is fixed, and the upper part of the exterior wall panel is installed by rotating out of plane in an arc from the outdoor side to the indoor side, using this as a fulcrum. A certain amount of space is required between the installation location and the scaffolding.

Therefore, as described above, a construction method has been proposed that allows exterior wall panels to be suitably constructed even on narrow sites where there is no space for installing scaffolding. Specifically, guide rails are provided to extend in the longitudinal direction of the lower floor ceiling beam and the upper floor ceiling beam that constitute the building frame. On the other hand, hangers that can be hung on the guide rails are attached to the upper ends of the lower and upper floor outer wall panels. Then, by hooking each hanger to the guide rail of each ceiling beam, each outer wall panel becomes suspended from each ceiling beam. By sliding the hanger along the guide rail in this suspended state, each exterior wall panel is moved to a predetermined mounting position. This is a construction method in which each external wall panel is fixed from the indoor side with bolts or the like at this mounting position (see, for example, Patent Document 1).

For example, as in the construction method described in Patent Document 1, by installing the exterior wall panel on the building frame while pulling it horizontally (or sliding it), it becomes possible to install the exterior wall panel even on a narrow site. By the way, in general, in factory-produced (industrialized) exterior walls, the facing materials (exterior wall surface materials), exterior wall frames, heat insulating materials, waterproof sheets, vertical rims (ventilation base), etc. are assembled at the factory to form exterior wall panels. is manufactured and transported to the site. For example, an exterior wall panel suspended by a crane is sequentially installed horizontally and vertically with respect to the building frame while being pulled horizontally as described above.

Instead of the conventional general method of installing exterior wall panels, that is, the installation method by pulling them horizontally, the lower part of the exterior wall panel is engaged with the exterior wall installation position, and the upper part of the exterior wall panel is raised while rotating toward the outdoors. In this installation method, after the exterior wall panels are installed, waterproof gaskets are installed at the joints (vertical joints, horizontal joints (including inter-floor joints)) between the exterior wall panels.

This gasket generally has a cross-sectional shape perpendicular to its longitudinal direction that is symmetrical with respect to the central axis. As an example of such a gasket, a gasket has been proposed that can properly perform the roles of a rain barrier section and a wind barrier section. More specifically, it is a joint between the core located at the center of the joint formed between adjacent exterior wall panels and the vertical rim provided on the back side of the exterior wall material of the exterior wall panel. A third fin part (rain barrier part) that protrudes from the core part in the joint width direction within the space and catches and drains water that has entered the space; This gasket is provided with a second fin (wind barrier part) that protrudes from the core in the joint width direction at a location between the edge surfaces of the plate material and seals the gap between the location and the space (for example, see Patent Document 2). ).

Japanese Patent Application Publication No. 2008-127927 Japanese Patent Application Publication No. 2016-132953

According to the gasket described in Patent Document 2, the work efficiency when attaching the gasket to the joint can be improved, and the roles of the rain barrier part and the wind barrier part can be properly performed. In addition, in the gasket described in Patent Document 2, fourth to sixth fins are further arranged between the outer wall surface materials, these fins and the outer wall surface materials constitute primary waterproofing, and the wind barrier part and the plate material This constitutes secondary waterproofing.

However, since these symmetrical gaskets are installed at the joints between the exterior wall panels installed in the building's frame by post-installation, the exterior wall panels must be installed horizontally as described above. If the site is narrow and the gasket cannot be installed, there is no space to install the gasket afterwards, making installation difficult. Additionally, installing gaskets at the joints between exterior wall panels on the second floor or higher is difficult because scaffolding cannot be installed.

Therefore, for example, there is a method of attaching a gasket in advance to the edge side of the exterior wall panel using double-sided tape, etc. However, when installing a horizontally drawn exterior wall panel, if the gasket has a symmetrical cross section, the rain barrier part should be attached to the exterior wall surface. It is difficult to precisely arrange the wind barrier part in the space between the two plates, and also to precisely arrange the wind barrier part between the edges of the plates. Furthermore, although a chamfer is often provided on the edge surface of an exterior wall panel, when gluing a long gasket to the edge surface of an exterior wall panel, a long gasket is often placed along the line of this chamfer. It is difficult and time-consuming to adhere long gaskets with high precision.

The present invention has been made in view of the above-mentioned problems, and even in construction work in which external wall panels are installed one after another on the building frame while pulling horizontally on a narrow site where there is no space for installing scaffolding, it is possible to reduce the gap between adjacent external wall panels. The purpose is to provide a gasket that can be installed accurately and efficiently at joints, and an exterior wall panel with a gasket.

In order to achieve the above object, one aspect of the gasket according to the present invention is as follows:
A gasket in which a primary waterproofing material and a secondary waterproofing material are integrated through a connecting part,
The primary waterproofing material and the secondary waterproofing material have different cross-sectional shapes perpendicular to the longitudinal direction of the gasket.

According to this aspect, the primary waterproofing material and the secondary waterproofing material, which are integrated through the connecting part, have different cross-sectional shapes perpendicular to the longitudinal direction, so that the primary waterproofing material and the secondary waterproofing material Each can perform a unique function depending on its unique cross-sectional shape. Moreover, specifically, the primary waterproofing material is disposed on the edge surface forming vertical joints or horizontal joints among the exterior wall panels constituting the exterior wall panel, and forms primary waterproofing together with the exterior wall panel. The cross-sectional shape of the primary waterproofing material can be a variety of shapes, such as circular, rectangular, polygonal, or rectangular or polygonal shapes with curved corners.In addition to solid blocks, hollow Applicable to the body etc. On the other hand, the secondary waterproofing material is placed on the back side of the exterior wall material and is fitted into the space formed by the back side, the vertical rim and the waterproof sheet that make up the exterior wall panel, and covers the entire gasket at the joint. While fixed around the area, it forms secondary waterproofing together with the tarpaulin sheet. The cross-sectional shape of the secondary waterproofing material may be a block shape such as a circle or a rectangle, or a shape in which a plurality of fins protrude from a rectangular cross-section, for example. For example, a region with a rectangular cross section constituting the secondary waterproofing material can function as a fixing part that fixes the entire gasket around the joint, and fins protruding from the rectangular cross section can function together with the waterproof sheet as secondary waterproofing.

In this way, the gasket of this embodiment can be fixed in advance to the vertical joints and horizontal joints of the exterior wall panels, so even in construction where the exterior wall panels are installed one after another on the building frame while horizontally pulling, the gaskets can be fixed in advance to the vertical joints and horizontal joints of the exterior wall panels. It is installed accurately and efficiently at the joints between the parts. That is, the gasket of this embodiment may be attached to an exterior wall panel in a factory, or the gasket of this embodiment may be attached to an exterior wall panel delivered to the site, and then the exterior wall panel may be installed. In any case, after the exterior wall panels are installed on the building frame, it is possible to eliminate the need for post-installation of gaskets at vertical joints and horizontal joints.

Further, another aspect of the gasket according to the present invention is characterized in that the primary waterproofing material has a plurality of hollows.

According to this aspect, since the primary waterproofing material has a plurality of hollows, the primary waterproofing material can have appropriate rigidity and appropriate deformation performance. Therefore, when the gasket of this embodiment is attached to, for example, the vertical joints of an exterior wall panel that has already been installed on the building frame, a separate exterior wall panel that has been pulled horizontally is installed on the building frame with the gasket sandwiched between them. Due to its rigidity and deformability, the gasket can form a sealing structure (primary waterproofing and secondary waterproofing) while being crushed appropriately. In addition, the secondary waterproofing material fitted into the space formed by the back surface of the exterior wall material, the vertical edge, and the waterproof sheet may also have one or more hollows, and this hollow allows the secondary waterproofing to be completed. Appropriate deformability is imparted to the material, making it easier to fit into spaces.

Further, in another aspect of the gasket according to the present invention, the secondary waterproofing material is
A fixing part that is fixed to the back of the exterior wall surface material that constitutes the exterior wall panel;
a rainwater drainage part extending from a side surface of the fixed part and located on the primary waterproofing material side;
The rainwater shielding part is characterized in that it has a rainwater shielding part that overhangs from the side surface of the fixing part and is located on the indoor side.

According to this aspect, since the secondary waterproofing material includes the fixing part, the rainwater drainage part, and the rainwater shielding part, the entire gasket can be fixed to the outer wall panel at the fixing part, and the primary waterproofing material can be fixed to the outer wall panel by the fixing part. Rainwater leaking into the room through the rainwater drain can be drained in the longitudinal direction of the joint (vertical joint or horizontal joint). Furthermore, secondary waterproofing can be formed by the rainwater shielding part coming into contact with, for example, a waterproof sheet forming an adjacent outer wall panel and a heat insulating board on the indoor side thereof. Here, both the rainwater drainage part and the rainwater shielding part can be formed by fins extending in the longitudinal direction of the joint.

Further, another aspect of the gasket according to the present invention is that the gasket has a bent part at an intermediate position,
It is characterized in that it is bent via the bending portion and can freely change its posture in a linear L-shape when viewed from above.

According to this aspect, the gasket has a bending part in the middle of the gasket, and is bent through the bending part to be able to change its posture in an L-shape in a plan view. A gasket can be installed in advance.

Further, one aspect of the gasketed exterior wall panel according to the present invention is as follows:
An exterior wall material, a vertical rim attached to the back of the exterior wall material, a waterproof sheet and a heat insulating board attached to the back of the vertical rim, and an outer wall attached to the back of the heat insulating board. An exterior wall panel having a frame,
The primary waterproofing material of the gasket is disposed on the edge surface of the exterior wall material forming vertical joints and/or horizontal joints, and is formed by the back surface of the exterior wall material, the vertical rim, and the waterproof sheet. The secondary waterproofing material is fitted into the space where the secondary waterproofing material is provided.

According to this aspect, by providing the gasket according to the present invention on the edge surface forming vertical joints and/or horizontal joints of the exterior wall material, it is possible to perform construction in which exterior wall panels are sequentially installed on the building frame while being horizontally pulled. , gaskets can be automatically placed at vertical and horizontal joints according to the installation of exterior wall panels. Furthermore, gaskets can be placed accurately at joints between adjacent exterior wall panels.

For example, in the case where the upper end of the exterior wall panel is located between floors, if the horizontal joint, which is the joint between floors, is formed using the gasket of this embodiment, the gasket should be configured over the entire length of the exterior wall panel in the width direction. While the primary waterproofing material is placed on top of the exterior wall paneling, it is preferable to leave only the edges of the secondary waterproofing material, separate the secondary waterproofing material in the center from the primary waterproofing material, and attach a gasket to the top edge of the exterior wall panel. . By processing the gasket with such a configuration, the gasket can be attached to the outer wall panel while preventing the ventilation layer at the center of the outer wall panel from being blocked by the secondary waterproofing material.

Further, other aspects of the gasketed exterior wall panel according to the present invention include:
An exterior wall material, a vertical rim attached to the back of the exterior wall material, a waterproof sheet and a heat insulating board attached to the back of the vertical rim, and an outer wall attached to the back of the heat insulating board. An exterior wall panel forming a corner cover, comprising: a frame;
When the gasket is bent through the bending portion to take an L-shaped linear posture in plan view, the primary waterproofing material is disposed on the edge surface forming the horizontal joint of the outer wall surface material constituting the corner cover. The secondary waterproof material is fitted into a space formed by the back surface of the corner cover, the vertical rim, and the waterproof sheet.

According to this aspect, by providing the gasket according to the present invention on the edge surface forming the horizontal joint of the outer wall panel forming the corner cover, the outer wall panels forming the corner cover can be stacked upward while being pulled horizontally. During installation, gaskets can be automatically placed at side joints according to the installation of exterior wall panels.

As can be understood from the above explanation, the gasket and gasketed exterior wall panel of the present invention can be used in construction work where exterior wall panels are sequentially installed on the building frame while being horizontally pulled, even in narrow sites where there is no space for installing scaffolding. , gaskets can be installed accurately and efficiently at joints between adjacent exterior wall panels.

It is a perspective view of an example of the gasket concerning a 1st embodiment. FIG. 2 is a cross-sectional view illustrating a state in which a separate outer wall panel is drawn horizontally and adjacent to an example of the outer wall panel with a gasket according to the first embodiment. FIG. 3 is a cross-sectional view illustrating a state in which a separate horizontally drawn external wall panel is installed following FIG. 2 and vertical joints are formed. It is a front view of the outer wall formed by the outer wall panel with a gasket according to the second embodiment near the floors. 5 is a view taken along the line V-V in FIG. 4. FIG. 5 is a view taken along the line VI-VI in FIG. 4. FIG. 5 is a view taken along the line VII-VII in FIG. 4. FIG. It is a perspective view explaining the state in the middle of formation of an example of the gasket concerning a 2nd embodiment. It is a perspective view of an example of the outer wall panel with a gasket based on 3rd Embodiment.

Hereinafter, an example of a gasket and an outer wall panel with a gasket according to each embodiment will be described with reference to the accompanying drawings. Note that in this specification and the drawings, substantially the same constituent elements may be given the same reference numerals to omit redundant explanation.

[Gasket according to the first embodiment]
First, with reference to FIG. 1, an example of a gasket according to a first embodiment will be described. Here, FIG. 1 is a perspective view of an example of the gasket according to the first embodiment.

In the gasket 40, the primary waterproofing material 10 and the secondary waterproofing material 30 are integrally formed via the connecting portion 20. As will be described later, the primary waterproofing material 10 is a sealing member that forms primary waterproofing together with the exterior wall surface material, and the secondary waterproofing material 30 provides secondary waterproofing together with the waterproof sheet while fixing the entire gasket 40 to the exterior wall panel. This is a sealing member that constitutes the.

The gasket 40 is integrally molded as a whole and is a dry water-stopping material that is a compressible elastic body. More specifically, it is molded from EPDM rubber (ethylene propylene rubber), chlorinated polyethylene rubber, or the like.

In addition, there are some areas where a foamed structure with a high expansion ratio is added. Specifically, the main body 11 of the primary waterproofing material 10 and the fixing part 31, connecting part 20, etc. of the secondary waterproofing material 30 are made of solid rubber, while the cushioning materials 15, 36, and 37 are made of EPDM with a high foaming ratio. Molded from rubber. In addition, the molding material for the gasket 40 may be a thermoplastic elastomer such as an olefin elastomer, polyvinyl chloride (PVC), or the like.

The gasket 40 is disposed on the edge surface forming the vertical joints and the edge surface forming the horizontal joints of the exterior wall material constituting the exterior wall panel, and therefore corresponds to the width or length of the exterior wall material. It has a length of

The primary waterproofing material 10 has a substantially rectangular cross-sectional shape perpendicular to the longitudinal direction, and has a plurality of (two in the illustrated example) hollows 12 extending in the longitudinal direction. Moreover, a core wire 14 extending in the longitudinal direction of the main body 11 is buried above the central vertical piece that separates the two hollow spaces 12, and this core wire 14 allows the primary waterproofing material 10 to be exposed to external force. This is designed to prevent excessive stretching.

Because the primary waterproof material 10 has a plurality of hollow spaces 12, it can have appropriate rigidity and appropriate deformation performance, and can be appropriately crushed when squeezed by external wall materials from left and right or above and below. A seal joint of a predetermined width can be formed while

Furthermore, a decorative material 13 having a different color from that of the main body 11 is fixed to the ceiling surface of the main body 11. For example, while the main body 11 of the primary waterproofing material 10 and the secondary waterproofing material 30 are black, the decorative material 13 is pale grayish white, and gaskets 40 are arranged at the joints between the outer wall panels. When the design material 13 is visually recognized from the outside in a state where the design material 13 is in a state where the design material 13 is in a state where the design material 13 is in a state where the design material 13 is in a state where the design material 13 is viewed from outside, it has a color or a pattern that gives off an excellent appearance design. For example, the gasket 40 can be formed as a whole by extrusion molding, but the decorative material 13 is fixed to the surface of the main body 11 by extrusion molding so that the decorative material molding material overlaps the surface of the primary waterproof material molding material. The primary waterproof material 10 (and thus the gasket 40) can be manufactured in this manner.

A cushioning material 15 having a substantially semicircular cross section and extending in the longitudinal direction of the main body 11 is also formed by extrusion at a portion of the main body 11 that is pressed against an external wall surface material constituting an adjacent external wall panel. .

A connecting portion 20 extends downward from the lower end of one vertical piece of the primary waterproofing material 10, and the secondary waterproofing material 30 is continuous with the connecting portion 20. The secondary waterproof material 30 has a fixing portion 31 whose cross-sectional shape perpendicular to the longitudinal direction is rectangular (the illustrated example is approximately square). The fixing part 31 has one hollow 32 extending in the longitudinal direction therein. Since the fixing part 31 has the hollow 32, the fixing part 31 can deform appropriately in the space formed by the back surface of the outer wall material, the vertical rim, and the waterproof sheet, as described later. It is designed to fit smoothly.

A fin-shaped rainwater drainage part 33 is provided so as to protrude to the side from one vertical piece of the fixed part 31 at a position directly below the primary waterproofing material 10, and at a position below the rainwater drainage part 33 (at a joint). A fin-shaped rainwater shielding portion 34 is similarly provided so as to protrude laterally at a position that will be on the indoor side when attached.

The rainwater drainage section 33 is located below the main body 11 of the primary waterproofing material 10, and dams up rainwater that has passed between the primary waterproofing material 10 and the outer wall surface material of the outer wall panel sandwiching it, and drains the rainwater. It has a function of draining water along the section 33. Therefore, the rainwater drainage part 33 is provided so that its protruding tip is inclined upward toward the main body 11 side than the root position of the fixing part 31.

Further, a core bar 35 extending in the longitudinal direction of the secondary waterproofing material 30 is buried in the joining part between the fixing part 31 and the rainwater drainage part 33 (the base of the rainwater drainage part 33). This core metal 35 increases the strength at the joint between the fixing part 31 and the rainwater drainage part 33.

On the other hand, in the direction in which the rainwater shielding part 34 extends laterally, the vicinity of the center thereof is upwardly protruding, and the tip thereof is curved so as to hang downward. The rainwater shielding part 34 is displaced when it comes into contact with the waterproof sheet or heat insulation board of the exterior wall material of the adjacent exterior wall panel, and forms secondary waterproofing here, so the above-mentioned linear shape is formed so that it is likely to be displaced downward. have.

Further, a buffer material 36 is attached to the joint between the fixing part 31 and the rainwater shielding part 34, and a separate buffering material 37 is attached to the upper surface of the tip of the rainwater shielding part 34.

As is clear from FIG. 1, in the gasket 40, the cross-sectional shapes of the primary waterproofing material 10 and the secondary waterproofing material 30 are completely different. The primary waterproofing material 10 is disposed on the edge surface of the exterior wall panel 51 that forms vertical joints or horizontal joints, and forms primary waterproofing together with the exterior wall panel 51 . On the other hand, the secondary waterproofing material 30 is disposed on the back surface of the exterior wall material, and is fitted into the space formed by the back surface, the vertical rim and the waterproof sheet that constitute the exterior wall panel, and covers the entire gasket 40. It forms secondary waterproofing together with the waterproof sheet while being fixed around the joints. In this way, since the primary waterproofing material 10 and the secondary waterproofing material 30 each have a unique function, their cross-sectional shapes are completely different.

[Exterior wall panel with gasket according to the first embodiment]
Next, an example of the gasketed outer wall panel according to the first embodiment will be described with reference to FIGS. 2 and 3. Here, FIG. 2 is a cross-sectional view illustrating a state in which a separate external wall panel is pulled horizontally and adjacent to an example of the gasketed external wall panel according to the first embodiment, and FIG. FIG. 3 is a cross-sectional view illustrating a state in which a separate horizontally drawn external wall panel is installed following FIG. 2 and vertical joints are formed.

The gasketed exterior wall panel 60 is an exterior wall panel in which a gasket 40 is attached to one vertical end surface of the exterior wall panel 50 which is rectangular in front view. In FIG. 2, the gasket 40 included in the gasketed exterior wall panel 60 located on the right side is shown, and the other exterior wall panel 50 that has been pulled horizontally from the left side in the X2 direction also has a gasket (not shown) on the left side. It is attached to form an exterior wall panel 60 with a gasket.

The exterior wall panel 50 includes an exterior wall panel 51, a vertical rim 52 on the back of the exterior wall 51, a moisture-permeable waterproof sheet 53 (an example of a waterproof sheet) on the back of the vertical rim 52, and a moisture-permeable waterproof sheet. 53 is attached, and an outer wall panel frame 55 is fixed to the back surface (indoor side) of the heat insulating board 54. The outer wall panel 50 and the vertical rim 52, the vertical rim 52 and the insulation board 54, the insulation board 54 and the outer wall panel frame 55, etc. are fixed to each other by fixing means (not shown) such as screws or nails. . Further, the inside of the outer wall panel frame 55 may be filled with a heat insulating material made of glass wool, rock wool, or the like.

The outer wall surface material 51 is formed from a siding material, and has a plurality of vertical joints and horizontal joints on its surface. Examples of this siding material include ceramic siding, metal siding made of aluminum or steel plates, wood siding made of processed natural wood, and resin siding made of vinyl chloride resin.

A ventilation layer 56 is formed on the back side of the outer wall material 51 by disposing the outer wall material 51, the moisture-permeable waterproof sheet 53, and the heat insulating board 54 via the vertical rim 52. The vertical rim 52 is disposed at a position slightly inward from the end surface (edge surface) of the outer wall material 51, and the space is closed by the back surface of the outer wall material 51, the vertical rim 52, and the moisture-permeable waterproof sheet 53. G is formed.

As shown in FIG. 2, the primary waterproofing material 10 is brought into contact with the edge surface of the exterior wall surface material 51 of the exterior wall panel 50, and the fixing part 31 of the secondary waterproofing material 30 is fitted into the space G in the X1 direction. , an outer wall panel 60 with a gasket is formed in which the gasket 40 is fixed to the vertical joints of the outer wall panel 50. When the fixing part 31 is fitted into the space G, the cushioning material 36 at the corner of the fixing part 31 is positioned at the corner of the moisture permeable waterproof sheet 53 and the heat insulating board 54, and with this configuration, This prevents the fixing part 31 from coming into direct contact with this corner and being damaged.

The gasketed exterior wall panel 60 may be formed at a factory and then transported to the site, or may be formed by fixing the gasket 40 to the exterior wall panel 50 at the site. The gasketed outer wall panel 60 can be easily formed by simply fitting the fixing portion 31 of the secondary waterproof material 30 into the space G of the outer wall panel 50.

Furthermore, since the long gasket is not fixed to the edge surface of the outer wall panel by adhesive or the like, the gasket 40 can be placed at the vertical joints of the outer wall panel 50 with high precision.

In a narrow site where there is no space to install scaffolding, the gasketed exterior wall panel 60 (the left exterior wall panel in Fig. 2), which has been suspended by heavy equipment such as a crane, is pulled horizontally in the By placing the gasket 40 in close proximity to the gasket-equipped exterior wall panel 60 (the right-hand exterior wall panel in FIG. 2) and installing it at a predetermined installation position, as shown in FIG. A vertical joint 58 is formed.

As shown in FIG. 3, in a state where the gasket 40 is compressed between the left and right exterior wall panels 50 to form a vertical joint 58, the cushioning material 15 of the primary water stop material 10 is applied to the edge surface of the opposite exterior wall panel 50. This structure prevents the main body 11 from directly contacting and being pressed against the opposing outer wall panel 50 and damaging it, and further ensures water-tightness.

Further, in a state where the vertical joint 58 is formed in the gasket 40, the rainwater drainage section 33 extends inside the gap G of the outer wall panel 50 on the other side. On the other hand, the rainwater shielding part 34 is in contact with the edge surfaces of the moisture permeable waterproof sheet 53 and the heat insulating board 54 of the outer wall panel 50 on the other side, with the buffer material 37 interposed therebetween. The displaced rainwater shielding part 34 is brought into contact with the edge surface of the heat insulation board 54 etc. of the outer wall panel 50 on the other side via the buffer material 37, so that the rainwater shielding part 34 is brought into direct contact with the edge surface of the heat insulation board 54 etc. This prevents them from being damaged due to being pressed against each other, and further ensures water-tightness.

As shown in FIG. 3, primary waterproofing of the external wall is formed by the external wall surface materials 51 of the left and right external wall panels 50 and the primary waterproofing material 10 compressed by these. In addition, secondary waterproofing of the outer wall is formed by the left and right moisture-permeable waterproof sheets 53 and heat insulating boards 54, and the secondary waterproofing material 30 that connects them.

As shown in the figure, the rainwater drainage section 33 extends inside the gap G of the outer wall panel 50 on the other side, thereby creating a gap between the gasket 40 and the outer wall surface material 51 of the outer wall panel 50 on the other side. The rainwater that has passed through can be dammed up by the rainwater drainage section 33 and allowed to flow downward through the rainwater drainage section 33.

Moreover, even if rainwater intrudes further into the indoor side than this rainwater drainage part 33, the secondary waterproofing can reliably prevent rainwater from infiltrating into the indoor side.

[Exterior wall panel with gasket according to second embodiment]
Next, an example of an outer wall panel with a gasket according to the second embodiment will be described with reference to FIGS. 4 to 7. Here, FIG. 4 is a front view of the outer wall formed by the gasketed outer wall panel according to the second embodiment near the floor. Moreover, FIG. 5, FIG. 6, and FIG. 7 are a VV arrow view, a VI-VI arrow view, and a VII-VII arrow view of FIG. 4, respectively. In addition, in FIG. 4, only a part of each outer wall panel is illustrated.

FIG. 4 shows, for example, the vicinity of the second floor, and more specifically, shows outer wall panels 60A with gaskets on the upper, lower, right, and left sides of the vertical joints 58 and horizontal joints 59 near the floor. This gasket-equipped outer wall panel 60A includes gaskets 40 on the upper end face and the right end face of the outer wall panel 50, respectively.

As shown in FIG. 4, on the back surface of the outer wall panel 50, a vertical rim 52 (dotted line) is provided at a position slightly inward from the right edge face. As shown in FIG. 5, which shows a cross section of the end of the vertical furrow 52, the fixing part 31 of the secondary water stop material 30 that constitutes the gasket 40 is fitted here.

On the other hand, as shown in FIG. 6, in the secondary water stop material 30 of the gasket 40, the fixing part 31 that buffers against the vertical rim 52 is cut out at a position corresponding to the vertical rim 52, and the rainwater drainage section 33 and a rainwater shielding part 34 are placed on the upper end of the vertical rim 52.

On the other hand, as shown in FIG. 7, the secondary water stop material 30 is completely cut out from the gasket 40 on the inner side of the vertical furrow 52. With this configuration, the ventilation layers 56 can be communicated vertically on the back surfaces of the outer wall panels 50 arranged above and below.

In this way, especially when the gasket 40 is applied to the horizontal joint 59 between the upper and lower exterior wall panels 50, the part where the secondary water stop material 30 is completely left, or a part of the secondary water stop material 30 is By applying the gasket 40 having the cut-out portion and the portion where the secondary water stop material 30 is completely cut out, the gasket 40 can be fixed to the outer wall panel 50 while ensuring the ventilation layer 56. .

[Gasket according to second embodiment and outer wall panel with gasket according to third embodiment]
Next, an example of the gasket according to the second embodiment and the gasket-equipped outer wall panel according to the third embodiment will be described with reference to FIGS. 8 and 9. Here, FIG. 8 is a perspective view illustrating a state in the middle of formation of an example of a gasket according to the second embodiment, and FIG. 9 is a perspective view of an example of an outer wall panel with a gasket according to the third embodiment. .

The illustrated gasket 40A has the same basic configuration as the gasket 40 illustrated in FIG. 1, but has a bent portion 41 at an intermediate position. FIG. 8 shows a state in which the left and right pieces are being bent through the bending part 41, but by completely bending the left and right pieces in the X3 direction, which is the direction in which they approach each other, the left and right pieces are bent as shown in FIG. A gasket 40A whose posture is changed linearly in an L-shape in plan view is formed.

This gasket 40A is applied when the outer wall panel 50A is a corner cover and a horizontal joint of the corner cover 50A is formed.

The basic configuration of the corner cover 50A is also basically the same as that of the general exterior wall panel 50, but is different in that its planar view shape has an L-shaped linear shape.

Returning to FIG. 8, the gasket 40A is similar to the content described with reference to FIGS. A gasket is applied that has a part where the secondary water stop material 30 is completely cut out (the part t1) and a part where the secondary water stop material 30 is completely cut out (the part t3).

Then, as shown in FIG. 9, the first water-stopping material 10 of the gasket 40 is arranged on the edge surface of the upper end of the corner cover 50A, and the fixing part 31 of the second water-stopping material 30 is attached to the inside of the vertical rim 52. By fitting into the space, an outer wall panel 60B with a gasket in which the ventilation layer 56 is secured is formed. At the corner of the outer wall, the gasket 40A shown in FIG. Form a horizontal joint in the section.

It should be noted that other embodiments may be adopted in which other components are combined with the configurations listed in the above embodiments, and the present invention is not limited to the configurations shown here. In this regard, changes can be made without departing from the spirit of the present invention, and can be appropriately determined depending on the application form.

10: Primary waterproofing material 11: Main body 12: Hollow 13: Design material 14: Core wire 15: Cushioning material 16: Guide engagement groove 20: Connecting section 30: Secondary waterproofing material 31: Fixed section 32: Hollow 33: Rainwater drainage section 34: Rainwater shielding part 35: Core metal 36, 37: Cushioning material 40, 40A: Gasket 41: Bending part 50: Exterior wall panel 50A: Exterior wall panel (corner cover)
51: Exterior wall material 52: Vertical rim 53: Waterproof sheet (moisture permeable waterproof sheet)
54: Heat insulation board 55: External wall panel frame 56: Ventilation layer 58: Vertical joint (joint)
59: Horizontal joint (joint)
60, 60A, 60B: External wall panel with gasket G: Space

Claims (5)

A gasket in which a primary waterproofing material and a secondary waterproofing material are integrated through a connecting part,
The primary waterproofing material and the secondary waterproofing material have different cross-sectional shapes perpendicular to the longitudinal direction of the gasket ,
The gasket has a bent part in the middle thereof,
A gasket characterized in that it is bent through the bending portion and can change its posture linearly in an L-shape in plan view. The gasket according to claim 1, wherein the primary waterproofing material has a plurality of hollows. The secondary waterproofing material is
A fixing part that is fixed to the back of the exterior wall surface material that constitutes the exterior wall panel;
a rainwater drainage part extending from a side surface of the fixed part and located on the primary waterproofing material side;
The gasket according to claim 1 or 2, further comprising: a rainwater shielding portion extending from the side surface of the fixing portion and located on the indoor side. An exterior wall material, a vertical rim attached to the back of the exterior wall material, a waterproof sheet and a heat insulating board attached to the back of the vertical rim, and an outer wall attached to the back of the heat insulating board. An exterior wall panel having a frame,
The primary waterproofing material and the secondary waterproofing material have different cross-sectional shapes perpendicular to the longitudinal direction of the gasket, in which the primary waterproofing material and the secondary waterproofing material are integrated through a joint, A waterproofing material is disposed on the edge surface of the exterior wall material forming a vertical joint and/or a horizontal joint, and is provided in a space formed by the back surface of the exterior wall material, the vertical rim, and the waterproof sheet. An exterior wall panel with a gasket, characterized in that the secondary waterproofing material is fitted. An exterior wall material, a vertical rim attached to the back of the exterior wall material, a waterproof sheet and a heat insulating board attached to the back of the vertical rim, and an outer wall attached to the back of the heat insulating board. An exterior wall panel forming a corner cover, comprising: a frame;
The gasket according to any one of claims 1 to 3 is bent through the bending portion to take an L-shaped linear posture when viewed from above, at a horizontal joint of the outer wall material constituting the corner cover. The primary waterproofing material is disposed on the edge surface forming the corner cover, and the secondary waterproofing material is fitted into the space formed by the back surface of the corner cover, the vertical rim, and the waterproof sheet. Exterior wall panels with gaskets.

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