JP6393605B2 - Joint structure - Google Patents

Description

  The present invention relates to a joint structure at a location where a horizontal joint between an upper wall panel on the floor of a building outer wall and an outer wall panel on the lower floor intersects with a vertical joint between the outer wall panels on the floor and between the outer wall panels on the lower floor.

  In Patent Document 1, an outer wall panel is composed of an outer wall surface material and a heat insulating material having a structure in which the outer wall surface material is overlapped with the outer wall surface of both sides of the outer wall surface material. A building exterior wall structure is disclosed. In this outer wall structure, an interstory part is provided between an outer wall panel on the floor and an outer wall panel on the lower floor, and an interstory member different from the upper panel or the lower panel is installed in the interstory part.

  In Patent Document 2, an outer wall panel is assembled vertically and laterally on a building outer wall, and a secondary waterproofing material is installed indoors and a primary waterproofing material is installed outdoors on a vertical joint between the outer wall panels assembled in the horizontal direction. At the horizontal joint between the upper and lower outer wall panels, install the secondary waterproof material on the indoor side and the primary waterproof material on the outdoor side across the vertical joint. The vertical joint and the horizontal joint intersect in a cross shape. The thing of the structure where the vertical joint tertiary water stop material in which a vertical cross section makes a substantially Z shape was interposed in the crossing part which is made is disclosed.

Japanese Patent No. 4890218 Patent No. 3891731

  The waterstop structure disclosed in Patent Document 1 is provided with an interstory part between an outer wall panel on the floor and an outer wall panel on the lower floor, and the interstory member different from the upper panel or the lower panel in the interstory part It has a structure to install.

The joint structure disclosed in Patent Document 2 is a double water-stop structure of a primary water-stop material and a secondary water-stop material for both vertical joints and horizontal joints, and at the intersection where the vertical joint and the horizontal joint intersect. Further, a tertiary water-stopping material is provided, but a water-stopping material having a special structure called a tertiary water-stopping material has to be prepared, which increases the number of parts, makes the structure complicated, and increases the number of steps.

  The present invention relates to a structure between the upper floor and the lower floor, and does not provide an interfloor between the upper outer wall panel and the lower outer wall panel. It is easy to stop water at the intersection where the vertical joint and the horizontal joint intersect with the primary waterproof material that is loaded on the outdoor side and the secondary waterproof material that is arranged on the back side. It is an object of the present invention to provide a joint structure that can be reliably and easily constructed with a simple structure.

  The invention according to claim 1 is a joint structure at a location where a horizontal joint between the upper outer wall panel and the lower outer wall panel of the building outer wall intersects with the vertical joint between the upper outer wall panel and the lower outer wall panel. The outer wall panel includes an outer wall surface material, a heat insulation board that is stacked on the outer wall surface material via the trunk edges on both side edges of the outer surface material, and a ventilation layer between the trunk edges, and the horizontal joint has an outdoor side. A horizontal water stop primary waterproof material is attached to the back side of the water stop plate across the vertical joint, and the water drain plate has a horizontal part and a vertical part, and the horizontal part is an upper and lower outer wall panel. The vertical part is inserted from above into the vertical slit of the water sealant for vertical joints loaded in the vertical joints between the outer wall panels assembled downstairs. The rising piece of the vertical joint water stop material on the indoor side is pushed against the trunk edge. Vignetting in characterized by forming a structure in which the water stop.

According to a second aspect of the present invention, in the first aspect of the invention, the outer side surface of the trunk edge is cut out from the upper side by a certain length to form an insertion groove between the outer wall surface material and the insertion edge. The vertical portion of the draining plate is inserted into the groove,
The invention according to claim 3 is characterized in that, in the invention according to claim 1 or 2, the heat insulation boards are in close contact with each other on the upper and lower adjacent outer wall panels.

The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the draining plate has an inclined portion that covers the ventilation layer between a horizontal portion and a vertical portion, and an inclination on the ventilation layer. The part is characterized in that a vent is formed,
The invention according to claim 5 is the invention according to any one of claims 1-4, wherein the primary water stop material for the horizontal joint provided on the outdoor side of the horizontal joint is the indoor side of the outer wall surface material in the outer wall panel of the downstairs and It has a hanging piece covering the corner on the outdoor side, and covers the small edge surface by covering the small edge surface of the outer wall panel below the floor.

  According to the first aspect of the present invention, the horizontal joint formed between the upper and lower outer wall panels includes a crossing portion intersecting with the vertical joint, and the primary waterproof material for the horizontal joint and the water drainage plate are used to stop the water. It has a double water-stop structure, but the draining plate is installed by placing the horizontal part on the heat insulation board of the downstairs outer wall panel, assembling the outer wall panel on the upper floor from above, and sandwiching it with the heat insulation board from above and below There is no need to make the outer wall panel special structure or special fixture for mounting the draining board, the structure is simple and construction is easy, the upper and lower outer wall panels are on the outdoor side Horizontal joints are formed on the indoor side, but water can be stopped indoors by sandwiching the horizontal part of the draining board with a heat insulating board, and the vertical part of the water stopping board is loaded on the outdoor side of the vertical joint The vertical part of the drainage plate is inserted into the slit of the water sealant for vertical joints Does not (does not reach) the water stopping structure by longitudinal joints for the water stopping material falls below the slit can be maintained also in place which established the draining board. Also, even if the rising piece or the seal lip collapses when the vertical joint is mounted, the rising piece on the indoor side from the slit deforms with its position regulated by the insertion of the vertical part of the water stop plate As a result of this, the seal lip is also regulated and the position of the seal lip is corrected. Similar to the water stop structure where the vertical part of the water stop plate below the slit does not exist (not reachable), Pressed to close the gap between the trunk edges and maintain the water stop structure. And the water stop in the intersection of a vertical joint and a horizontal joint is performed with a draining board. In other words, the water drainage plate is provided with a slit in the vertical joint water-stopping material, and by inserting a vertical portion into the slit, the position of the seal lip of the vertical joint water-stopping material is regulated, While providing the same water-stop function, it can be installed at the intersection of the vertical joint and the horizontal joint, and water can be stopped at the intersection. By being attached to the horizontal joint across the vertical joint without being divided at the vertical joint, there are effects such as excellent design properties seen from the outside.

  According to the invention which concerns on Claim 2, a draining board is arrange | positioned across a vertical joint between the trunk | rim edges of the outer wall panel adjacent to right and left, and the vertical joint water stop is performed between trunk | drums.

According to the invention which concerns on Claim 3, the outer wall panel which forms a vertical joint makes it possible to perform the water stop between heat insulation boards by sticking a heat insulation board.
The vertical joint between the upper and lower outer wall panels is loaded with a vertical joint water-proofing material on the outdoor side. In claim 4, the vertical joint water-proofing material enters the vertical joint water-proofing material, The water that falls down drops on the drainage board, and the water that has entered through the primary waterstop material for the horizontal joint reaches the drainage board, and then travels through the insertion groove on the trunk edge from the end of the insertion groove or on the drainage board. It is dripped in a ventilation layer from a ventilation hole, and comes to be discharged.

  According to the invention which concerns on Claim 5, the positioning at the time of attaching the primary waterstop material for horizontal joints on the small edge surface of an outer wall surface material with the hanging piece provided in the indoor side and the outdoor side of the primary waterstop material for horizontal joints is carried out. In addition, the penetrating pieces covering the corners of the small edge surface can prevent water from entering the small edge surface.

The front view of the principal part of the joint structure which this invention makes object. AA sectional view taken on the line AA of FIG. FIG. 3 is a sectional view taken along line BB in FIG. The perspective view of the edge part of a vertical joint gasket. The perspective view of a draining board. The CC sectional view taken on the line of FIG. The DD sectional view taken on the line of FIG.

Hereinafter, a joint structure according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a joint structure to which the present invention is directed. The outer wall panel 2 shown in FIGS. 2 and 3 is assembled to a beam (not shown) on the upper and lower floors, and a vertical wall is provided between the left and right outer wall panels. A horizontal joint 4 is formed between the upper and lower outer wall panels.

  As shown in FIGS. 2 and 3, the outer wall panel 2 is composed of an outer wall material 5, a heat insulating board 7 that is overlapped via a trunk edge 6 that is attached to both left and right edges of the outer wall material 5, and a panel frame 1. These are integrated to form a ventilation layer 8 penetrating vertically between the trunk edges 6.

  As for the trunk edge 6 which comprises the outer wall panel 2, the side end surface of the vertical direction is preferably aligned with the outer wall surface material 5, as shown in FIG. In the example shown in FIG. 3, the trunk edge 6 of the outer wall panel 2 on the floor is flush with the outer wall material 5 of the outer wall panel 2 on the floor, but protrudes slightly below the outer wall material 5. Or may be formed by being drawn upward.

  The outer wall panel 2 of the downstairs has a trunk edge whose upper end is lowered from the outer wall material 5, but this is to prevent a hindrance when installing a water draining plate 19 having an inclined portion 19 c described later. It is possible to make the upper end of the trunk edge flush with the outer wall panel 2 by reducing the gradient of the portion 19c or by eliminating the inclined surface 19c.

  The outer wall panel 2 to be assembled vertically is also cut at least at the trunk edge 6 of the outer wall panel 2 to be assembled downstairs, with the upper end surface being lowered from the outer wall surface material 5 and the outdoor side surface being cut by a certain length from above. The insertion groove 9 is formed downward with respect to the outer wall surface material 5.

  The heat insulating board 7 constituting the outer wall panel 2 is elastic, and as shown in FIG. 2, a part of the heat insulating board 7 protrudes to the left and right sides of the outer wall surface material 5 and protrudes and is assembled vertically. 2, at least the outer wall panel 2 assembled below the floor is protruded and partially protrudes upward as shown in FIG. 3, and the heat insulation board 7 of the outer wall panel 2 assembled on the left and right is as shown in FIG. 2. And the heat insulation boards 7 of the upper and lower outer wall panels 2 are also in pressure contact and intimate contact (in FIG. 3, the secondary waterproofing material for horizontal joints to be described later is illustrated between the upper and lower heat insulation boards. Although a gap corresponding to the thickness of 21 is formed, the secondary waterstop material 21 is compressed and buried in the heat insulation board 7 after the construction, and the upper and lower heat insulation boards 7 are in close proximity or in close contact with each other). In the illustrated example, the heat insulating board 7 of the outer wall panel 2 on the floor has a lower end surface that is flush with the outer wall surface material 5, but may protrude slightly below the outer wall surface material 5. In this case, the heat insulation board 7 of the outer wall panel 2 on the lower floor is retracted downward accordingly. Even if the heat insulation board 7 is not elastic, the same assembling is possible by assembling the heat insulation board 7 in a pressed state.

  The vertical joint 3 between the left and right outer wall panels is loaded with a vertical joint gasket 11 as a water-proof material for the vertical joint. As shown in FIGS. 2 and 4, the vertical joint gasket 11 is formed to protrude left and right at the column portion 12, the design lip 13 integrally formed at one end of the column portion 12, and the column portion intermediate portion near the design lip. And a sealing lip 15 formed integrally with the other end of the column portion 12, and a core material is inserted into the column portion 12 as necessary. Of the outer wall panels 2 to be assembled vertically, at least the vertical joint gasket 11 loaded in the vertical joint 3 between the outer wall panels of the downstairs is, as shown in FIG. 12, a slit 16 having a constant depth is formed downward, and an indoor side portion of the slit 16 is a rising piece 17. The upper end surface of the rising piece 17 shown in the figure is lower than the others, but it may be the same height as the others without being lowered.

  When the vertical joint gasket 11 is loaded into the vertical joint 3, a predetermined amount is pushed into the vertical joint 3 from the outdoor side as usual, and the design lip 13 and the hollow lip 14 are pressed against the outer wall material 5 on both the left and right sides, and the seal lip 15 is pressed against the barrel edge 6 on both sides and the seal lip 15 is pressed against the barrel edge 6 to prevent water from entering the indoor space from the joint 18 of the heat insulating board 7 (see FIG. 2).

  After assembling the outer wall panel 2 below the floor to a beam (not shown), the draining plate 19 is attached to the outer wall panel 2. As shown in FIG. 5, the draining plate 19 is formed by bending a horizontally long steel plate in a vertical direction to form a horizontal portion 19a, a vertical portion 19b, and an inclined portion 19c connecting the horizontal portion 19a and the vertical portion 19b. On the horizontal portion, for example, a secondary waterproof material 21 for horizontal joint made of foamed sponge material or the like is attached by, for example, a double-sided tape, and a ventilation hole 22 is formed in the inclined portion 19c. The vent hole 22 is rectangular in the illustrated example, but may be circular, elliptical, or any other shape.

  The above-described draining plate 19 may be attached to the upper end surface of the outer wall panel 2 by using an adhesive means such as an adhesive or an adhesive tape, or by using a physical fastening means such as a fastener such as a nail. It may be done or simply left without such means.

  The ventilation holes 22 are formed at a constant pitch, and when the draining plate 19 is attached to the outer wall panel 2, the ventilation holes 22 are not positioned at the vertical joint 3 and the trunk edge 6, particularly the vertical joint 3 as shown in FIG. 7. Thus, even when wind blows in strong wind, water is prevented from being directly blown to the joint 18 of the heat insulating board 7 through the vent hole 22. When setting the size and pitch of the air holes 22, for example, the air holes 22 have a constant size, and the air holes 22 are not positioned at the vertical joint 3 and the trunk edge 6. If it is too long, the pitch may be shortened in places other than the section corresponding to the vertical joint and the trunk edge 6.

  In the example shown in FIG. 5, the secondary waterstop material 21 for horizontal joints is attached to one side edge of the horizontal portion 19a on the inclined portion side, but may be attached to the entire surface of the horizontal portion 19a or the horizontal portion. You may attach to the center or other side edge of 19a.

  Regarding the order of assembly, the outer wall panel 2 on the lower floor is first assembled to a beam (not shown), and then the outer wall panel 2 on the lower floor is also assembled to a beam (not shown). Prior to assembling the outer wall panel on the floor, it is necessary to attach at least the horizontal joint gasket 24 and the draining plate 19 on the outer wall panel on the lower floor. However, the vertical joint gasket 11 may be attached at any timing. As appropriate, it is assembled to the vertical joint 3 on the lower and upper floors. An example of assembly will be described below, but the present invention is not limited to this.

  Before attaching the draining plate 19 to the outer wall panel 2, first, a horizontal joint gasket 24, which is a primary water-stopping material for horizontal joints, is mounted on the small edge surface at the upper end of the outer wall material 5 of the downstairs outer wall panel 2. As shown in FIG. 3, the horizontal joint gasket 24 has drooping pieces 25 and 26 covering the corners on the indoor side and the outdoor side of the outer wall surface material 5 of the downstairs outer wall panel 2, and to the small edge surface at the upper end of the outer wall surface material 5. The attachment is performed by positioning so that the fore edge surface fits in the hanging pieces 25 and 26 inside and outside. The illustrated horizontal joint gasket 24 has a complicated hollow cross-sectional structure, but in essence, it has hanging pieces 25 and 26 covering the indoor side and outdoor side corners at the upper end of the outer wall surface material 5 and is housed in the horizontal joint 4. As long as it has a function of water-stopping the horizontal joint 4, any existing water-stopping material may be used, and the structure of the horizontal joint gasket 24 other than the hanging pieces 25 and 26 is a characteristic part of the present invention. Therefore, the description of the specific structure is omitted.

  After the horizontal joint gasket 24 is attached, the draining plate 19 is attached. This attachment is made with the vertical portion 19b facing downward and inserted into the insertion groove 9 between the outer wall surface material 5 and the trunk edge 6 and into the slit 16 of the vertical joint gasket 11 loaded in the vertical joint 3 while inserting the horizontal joint. This is done by placing a horizontal part 19a with the secondary secondary water blocking material 21 on the upper side on the small edge of the upper end of the heat insulation board. When the rising piece 17 of the vertical joint gasket 11 is made higher than that shown in the figure, the rising piece 17 above the hanging part 19b of the draining plate 19 is pushed into the indoor side by the inclined portion 19c. If the slope of the inclined portion 19c is reduced or the inclined portion is eliminated, it can be prevented from being pushed into the indoor side.

  Next, as shown in FIG. 3, the upper outer wall panel 2 is aligned with the lower outer wall panel, and the heat insulating board 7 is placed on the horizontal portion 19 a of the draining plate 19 via the secondary water stop material 21 for horizontal joints. Assemble to a beam (not shown). As a result of this assembly, the horizontal joint gasket 24 that covers the small edge surface at the upper end of the outer wall surface material 5 of the outer wall panel 2 below the floor is pushed downward, and the horizontal joint 4 is stopped.

  In the state where the outer wall panel 1 is assembled to the left and right and up and down as shown in FIG. 1, the vertical joint 3 is a vertical joint gasket 11 which is a vertical joint water-stopping material as shown in FIG. The seal 5 is pressed against the material 5 and the seal lip 15 is pressed against the left and right body edges 6 to stop the water and to stop the water to the joint 18 of the heat insulation board 7. Water is stopped by the horizontal joint gasket 24 and the draining plate 19 of the primary primary water-stopping material to form a double water-stop structure, and the horizontal joint gasket 24 is pressed from above and below by the outer wall material 5 of the upper and lower outer wall panels 2. The water is stopped by covering the small face of the outer wall material 5 below the floor, and the draining plate 19 is supported by sandwiching the horizontal portion 19a between the heat insulating boards 7 of the upper and lower outer wall panels 2, Insulation board of outer wall panel 2 on the floor There has been adapted to the water shut-off between the top and bottom of the insulation board by crimping the horizontal joint for the secondary water stop material 21. The inclined portion 19 c covers the trunk edge 6 and the ventilation layer 8 by inserting the vertical portion 19 b into the insertion groove 9 between the trunk edge 6 and the outer wall surface material 5.

  At the intersection where the vertical joint 3 and the horizontal joint 4 intersect, as shown in FIG. 7, the vertical portion 19 b of the drainage plate 19 is inserted into the slit 16 of the vertical joint gasket 11, and the vertical portion of the drainage plate 19 below the slit 16. Similarly to the water stop structure that does not reach 19b, the water stop plate 19 can be installed while the water stop structure by the seal lip 15 is maintained by the rising piece 17. Further, the seal lip 15 is pressed against the body edges 6 on both sides in a state where the position is restricted by the rising piece 17 whose position is restricted by the vertical portion 19 b of the water stop plate 19, and performs a water stop function. Stop water to 18.

  The water that entered the indoor side from the design lip 13 of the vertical joint gasket 11 and further passed through the hollow seal portion 14 was provided on the indoor side at a distance approximately the same as the depth width of the hollow seal portion 14. It is blocked by the seal lip 15. For example, water that has reached the seal lip 15 in the vertical joint 3 on the floor falls down in the vertical joint gasket on the outdoor side of the seal lip 15 and drops on the inclined portion 19c of the draining plate 19, and then the vertical joint on the lower floor. 3, or travels down the inclined portion 19 c sideways to reach the vent hole 22, or travels sideways through the insertion groove 9 and drops into the vent layer 8 to be discharged.

  According to the joint structure of the present embodiment, the horizontal joint 4 is stopped by the horizontal joint gasket 24 which is the primary waterproofing material for the horizontal joint and the draining plate 19, and the double draining water is stopped. 19 is supported by the horizontal portion 19a being sandwiched between the heat insulating boards 7 of the upper and lower outer wall panels 2, and in order to support the draining plate 19, the draining plate 19 and the outer wall panel 2 have a special structure or are provided with an attachment device. There is no need, and the number of man-hours for installation is not increased, construction is easy, and the upper and lower heat insulation boards 7 are stopped by close contact, but the secondary joint for the horizontal joint attached to the draining plate 19 is stopped. The water material 21 ensures water stoppage more reliably, and the outer wall panel 2 that forms the vertical joint 3 also has a water stop function because the heat insulating boards 7 on both the left and right sides are in close contact with each other. Together with the vertical In the place where the water stop of the ground is performed and the vertical joint 3 and the horizontal joint 4 intersect with the cross, the draining plate 19 straddles the vertical joint 3 across the trunk edge 6, and the vertical portion 19 b of the water stop plate 19. Is inserted into the slit 16 of the vertical joint gasket 11, so that the vertical structure 19 b below the slit 16 does not reach the vertical portion 19 b of the water drainage plate 19. The water stop plate 19 can be installed while being maintained by the remaining rising pieces 17. Further, the position of the rising piece 17 can be regulated by the insertion of the vertical portion 19b of the water stop plate 19, and the seal lip 15 can be surely pressed against the body edges 6 on both sides, so that the water stop is performed. The horizontal gasket 24 provided with hanging pieces 25 and 26 indoors and outdoors is attached so as to cover the small surface of the outer wall surface material 5 in the outer wall panel 2 of the downstairs. It is possible to easily and surely attach to a predetermined position, and the drooping pieces 25 and 26 can prevent water from entering from the facet, and the horizontal joint gasket 24 crosses the vertical joint 3 to Since it comes to be loaded into the ground 4 and the horizontal joint gaskets 24 are connected in a single line, it has an effect such as excellent design.

1. Steel panel frame 2. Outer wall panel 3. Vertical joint 4. Horizontal joint 5. Outer wall material 6. Body edge 7. Heat insulation board 8. Ventilation layer 9. Insertion groove 11. ・ Vertical joint gasket 12 ・ ・ Pillar part 13 ・ Design lip 14 ・ Hollow seal part 15 ・ Seal lip 16 ・ Slit 17 ・ ・ Rising piece 19 ・ ・ Water drain plate 21 ・ ・ Secondary stop for horizontal joint Water material 22 ・ ・ Vent hole 24 ・ ・ Horizontal joint gasket 25, 26 ・ ・ Drop piece

Claims (5)

  The joint structure at the point where the horizontal joint 4 between the outer wall panel 2 on the floor of the building outer wall and the outer wall panel 2 on the lower floor intersects with the vertical joint 3 between the outer wall panels on the floor and between the outer wall panels on the lower floor, The outer wall panel 2 includes an outer wall surface material 5, a heat insulating board 7 that is overlapped with the outer wall surface material 5 via the trunk edges 6 on both side edges of the outer surface material, and a ventilation layer 8 between the trunk edges. Is attached to the outdoor side with a primary waterstop 24 for horizontal joints, and a draining plate 19 is attached to the back side thereof across the vertical joint 3. The draining plate 19 has a horizontal part 19 a and a vertical part 19 b, The portion 19a is sandwiched and fixed from above and below by the heat insulating boards 7 of the upper and lower outer wall panels 2, while the vertical portion 19b is loaded in the vertical joint 3 formed between the outer wall panels assembled on the lower floor. Inserted from above into the longitudinally oriented slit 16 of the joint waterstop material 11, Joint structure rising piece 17 of the longitudinal joint for the water stopping material indoor side of the slit 16, characterized in that forming a structure that water stop is pressed against the furring strips 6.   The side surface of the trunk edge 6 is cut to a certain length from the upper side to form an insertion groove 9 between the outer wall surface material 5 and the vertical portion 19b of the draining plate 19 is inserted into the insertion groove 9. The joint structure according to claim 1, wherein:   The joint structure according to claim 1 or 2, wherein the heat insulation boards are in close contact with each other on the upper floor and the adjacent outer wall panels 2 on the lower floor.   The draining plate 19 has an inclined portion 19c that covers the ventilation layer 8 between a horizontal portion 19a and a vertical portion 19b, and a ventilation hole 22 is formed in the inclined portion 19c on the ventilation layer. The joint structure according to any one of claims 1 to 3.   The primary waterproofing material 24 for the horizontal joint provided on the outdoor side of the horizontal joint 4 has drooping pieces 25 and 26 covering the corners on the indoor side and the outdoor side of the outer wall material 5 in the outer wall panel 2 on the lower floor, and the lower floor. The joint structure according to any one of claims 1 to 4, wherein the facet surface of the outer wall panel 2 is covered and covered.