JP3913073B2 - Wall panel and layered structure of wall panels - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wall panel of a building, and relates to a wall panel in which a back surface of a panel base and an underlap portion are attached to each other in the thickness direction.
[0002]
[Prior art]
An example of the exterior material panel which forms the outer wall surface of the conventional building, and its overlapping structure will be described. FIG. 20 (a) shows a combination of the vertical joints 58 of the adjacent wall panels 51 in a block stack shape, and FIG. 20 (b) shows the vertical joints 58 of the adjacent wall panels 51. Are arranged in a brick and stacked in a staggered manner. As shown in FIGS. 20 (a) and 20 (b), the wall panel 51 has a back solid 51a (back) protruding from one of the four sides of the wall panel 51 to the back side edge of the wall panel 51. And the other two sides are formed with a surface symbol 51b (front face) protruding from the front side edge of the wall panel 51.
[0003]
When the panel is attached to the building, first, the trunk edge 55 is attached to the columns 52 and the inter-columns 53 standing at a predetermined pitch through the waterproof sheet 54. The trunk edge 55 serves to form a ventilation layer and, in some cases, to fix the panel. Next, the lower wall panel 51 is fixed in a state in which the back solid 51 a of the one adjacent wall panel 51 and the front solid 51 b of the other wall panel 51 are joined in the thickness direction of the wall panel 51. Then, the upper wall panel 51 is fixed in a state in which the surface solid 51b of the upper wall panel 51 and the rear solid 51a of the lower wall panel 51 are joined in the thickness direction of the wall panel 51. Further, a resin-based water return material called hot melt is attached to the edge of the back 51a of the wall panel 51, thereby ensuring water stopping performance.
[0004]
However, in the above-described conventional configuration, the back fruit 51a has the same distance from the surface of the wall panel 51 to the indoor side, so that when the plurality of wall panels 51 are attached, the back fruit 51a is abutted against each other. A portion 60 (see FIG. 20) is formed. In the abutment portion 60, the intrusion water from the vertical joint 58 and the horizontal joint 59 could not be stopped, and there was a risk of water leaking indoors.
[0005]
In addition, because the body edge 55 is interposed as a separate member in order to form a ventilation layer on the back side of the wall panel 51, the body edge 55 is necessary in the entire height direction corresponding to the total number of columns 52 and inter-columns 53. Met. For this reason, there is a problem that the number of parts increases, the part cost increases, and the construction man-hours also increase, resulting in a longer construction period. In addition, the body edge 55 is a long member that is attached along the pillar 52 and the inter-column 53, and the ventilation layer is formed by partitioning in the height direction, so there is a limit to the lateral (horizontal) ventilation performance. there were.
[0006]
Moreover, since the hot melt which is the water return material provided in the lateral direction of the upper end portion 51a of the upper side of the wall panel 51 is a resin material, the wall panel 51 made of a ceramic material such as cement is used. However, there was a problem that the production efficiency of the wall panel 51 was poor except that it was attached in a later process.
[0007]
On the other hand, the applicant of the present application discloses the invention of the wall panel shown in FIG. 21 (a) in Japanese Patent Application 2001-191537 filed earlier. According to the application, the wall panel 70 has an upper side underlap 71 and a side underlap 72, a stepped portion 73 and a stepped wall constituting portion 74a at one end of the upper side underlap 71, and a stepped wall constituting portion 74b at the other end. Provided. The lower end 72a of the side underlap 72 is formed to be narrower than other portions of the side underlap 72, and the lower end is formed on the stepped portion 73 formed adjacent to the wall panel 70 in the lateral direction. The parts 72a are configured to overlap.
[0008]
As a result, as shown in FIG. 21 (b), the panels are joined without forming the abutting portion, and a three-wrap structure is formed together with the stepped portion 73, the lower end portion 72a, and the overlapping panel base portion. Therefore, the water stopping performance is greatly improved. Further, the stepped portion 73 protrudes toward the back surface side of the panel base portion, so that the ventilation layer is formed without using the trunk edge.
[0009]
[Problems to be solved by the invention]
However, even in the configuration according to the above Japanese Patent Application No. 2001-191537, the water that has descended through the side underlap 72 may turn to the back side of the stepped portion 73 as shown in FIG. The water stop performance was not always perfect.
[0010]
Further, as shown in FIG. 22 (a), between the pillars 53 inside the wall panel 51, a fiber-based heat insulating material 66 such as glass wool or rock wool is filled for heat insulation and heat insulation. However, as shown in FIG. 22 (b), when an interior lateral copper edge 67 is incorporated in the stud 53 and the interior material 68 is attached thereto, as shown in FIG. The heat insulating material 66 is pushed and bulges toward the ventilation layer 65 formed by the trunk edge 55. For this reason, there is a problem that the ventilation layer is narrowed by the fiber-based heat insulating material 66 and the ventilation performance is lowered.
[0011]
Therefore, the present invention can be a dry construction that can prevent the invasion of wind and rain without filling the joint between the wall panels with a sealing material or the like, and it is possible to constitute a ventilation layer without using a trunk edge. It aims at providing the wall panel which can reduce a number of parts and construction man-hours.
[0012]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a wall panel according to the present invention is a wall panel in which the back surface of the panel base and the underlap portion are attached to each other in the thickness direction. A first level end that is disposed at one end and whose front surface is retracted from the other end of the underlap portion toward the back side of the panel, and is disposed at the other end of the underlap portion on the upper side of the panel and overlaps the first level end portion. A second level end portion whose surface is retracted from the lower end of the underlap portion of the panel side to the back side of the panel, and the lower end of the underlap portion of the panel side, and the second level end portion And a third level end portion that can be overlapped, and the width of the receding portion composed of the first level end portion and the second level end portion is at least wider than the width of the third level end portion. Features To.
[0013]
Here, the surface of the underlap portion provided on one of the upper side and the side side of the panel is disposed closer to the panel back side than the back side of the panel base. The surface of the first level end is set back from the back side of the second level end to the panel back side, and the surface of the second level end is set back to the panel back side from the back of the third level end. is doing. In addition, by forming the width of the receding portion composed of the first level end portion and the second level end portion wider than at least the width of the third level end portion, the third level end portion is accommodated in the receding portion. Can be fitted.
[0014]
By comprising in this way, since the back surface of the panel base part of one adjacent wall panel and the underlap part of the other wall panel are piled up and attached in the thickness direction of the wall panel, It is possible to achieve dry construction that can prevent the invasion of wind and rain without filling the joint part with a sealing material or the like, and the construction is easy and the construction period can be shortened. That is, the first level end and the second level end respectively disposed at both ends of the underlap portion on the upper side of the panel are attached to be overlapped, so that water is immersed from the abutting portion of the underlap portion as in the conventional example. Can be prevented. Further, the third level end portion of the lower end of the underlap portion on the side of the panel is overlapped with the receding portion composed of the first level end portion and the second level end portion, so that it is combined with the overlapping panel base portion to 4. Since it has a wrap structure, it is possible to reliably prevent flooding even in the dry type.
[0015]
At this time, the position of the third level end portion can be regulated by the second level end portion, and the surfaces of the adjacent panel base portions can be configured to be flush with each other. Thereby, when the back surface of the panel base of the wall panel and the underlap portion are overlapped with each other in the thickness direction of the wall panel, the adjacent panel base surfaces can be configured to be flush with each other, and the planar panel structure It can be.
[0016]
Moreover, the upper end part of the wall panel mutually adjoined by a horizontal direction can be latched simultaneously by pressing the laminated | stacked 1st level edge part and 2nd level edge part together with a panel mounting bracket. Here, by forming a fourth level portion that is substantially flush with the second level end portion in a portion that does not overlap the second level end portion of the first level end portion, the wall panels on both sides adjacent to each other are more It can be pressed and locked stably.
[0017]
The underlap portion on the side of the panel is preferably substantially the same width up to the third level end, and the second level end of the underlap portion on the upper side of the panel may protrude from the side surface of the panel base. It is preferable to form it flush.
[0018]
Further, in the underlap portion on the upper side of the panel, one or a plurality of portions other than the end portion, or the entire width of the underlap portion is wider than at least the third level end portion, and the surface is the back surface of the panel from the third level end portion. By forming a recess recessed backward, the third level end can also be accommodated in the recess. Thereby, the relative arrangement of the adjacent upper and lower wall panels can be shifted. In addition, the receding part which consists of a 1st level edge part and a 2nd level edge part, and the recessed part provided one or more in parts other than the said edge part are substantially the same shape, On the external appearance of a wall panel Can be unified.
[0019]
In addition, the third level end of the lower end of the underlap portion on the side of the panel is inserted into the retracted portion composed of the first level end and the second level end, and the underside of the upper side of the panel is inserted. You may comprise so that it may reverse | retreat to a lap | wrap part back surface side, However, It is preferable to comprise so that it may become substantially flush.
[0020]
Moreover, since the back surface of a 1st level edge part and a recessed part protrudes in the panel back surface side rather than the back surface of a panel upper side underlap, a ventilation layer can be easily formed between a wall panel and a base material. Similarly, by providing a convex portion on the underlap portion or the back surface of the panel base portion, the air-permeable layer can be formed more stably. As a result, a ventilation layer can be formed between the surface of the base material and the back of the underlap part without attaching the body edge, so the wall panel can be fixed directly to the base material and the body edge is omitted. Thus, the number of parts and construction man-hours can be reduced, and the construction period can be shortened.
[0021]
Moreover, when the water return is integrally provided in the underlap part of the wall panel, the water return is simultaneously formed in the manufacturing process of the wall panel, so that the production efficiency is good.
[0022]
Moreover, when the upper surface of the panel base part of the said wall panel is formed by the inclined surface which can drain, it can drain to the outdoor side of a wall panel using this inclined surface.
[0023]
Further, when a concave groove that engages with the panel mounting bracket is formed on the lower surface of the panel base portion of the wall panel, the wall panel can be mounted by engaging the panel mounting bracket with the concave groove.
[0024]
Further, when the back surface of the panel base and the underlap portion are overlapped with each other in the thickness direction of the wall panel, between the second level end portion or the recess and the back surface of the underlap portion on the side of the panel. In the case of having the predetermined gap, the lower panel base surface engaged by the panel mounting bracket and the upper panel base surface engaged from above the bracket can be formed flush with each other.
[0025]
In addition, the wall panel overlapping structure according to the present invention is a wall panel overlapping structure in which the back surface of the panel base and the underlap portion are attached to each other in the thickness direction using the above-described wall panel. A first level end disposed at one end of the underlap portion on the upper side of the panel, and a second level disposed at the other end of the underlap portion on the upper side of the panel, and a first level end portion whose surface recedes from the other end of the underlap portion to the back side of the panel. The level end is overlapped with the first level end, and the third level end disposed at the lower end of the underlap portion on the side of the panel is overlapped with the second level end. . According to the above configuration, the waterproof performance can be secured without sealing the vertical and horizontal joints of the wall panels that are overlapped with each other, so that the sealing work can be omitted, the workability is good, and the dry method is used. Therefore, the construction period can be shortened.
[0026]
In addition, the wall panel overlapping structure according to the present invention receives water that has entered from the joint between the wall panels by the underlap portion of the wall panel, prevents entry into the indoor side, and causes the underlap portion to circulate. Can be drained to the outside.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a wall panel and an overlapping structure thereof according to the present invention will be described with reference to the drawings. First, the configuration of the wall panel will be described, and then the overlapping structure of the wall panels will be described.
[0028]
(Configuration of wall panel)
FIG. 1 is an explanatory perspective view showing the structure of a wall panel according to the present invention, FIG. 2 is a schematic cross-sectional view of the wall panel and a view showing an overlapping state, and FIG. 3 is a perspective view showing how the wall panels adjacent on the left and right are joined together. FIG. 4 is a perspective explanatory view showing how the wall panels adjacent in the vertical direction are joined together, and FIG. 5 is a cross-sectional explanatory view showing the structure of the water return integrally provided in the underlap portion of the wall panel. 6 is a cross-sectional explanatory view showing a state in which the wall panel is attached by the panel mounting bracket, FIG. 7 is a diagram for explaining the configuration of the panel mounting bracket attached to the step portion, and FIG. 8 is a wall panel by the panel mounting bracket attached to the step portion. FIG. 9 is a diagram illustrating the configuration of a panel mounting bracket that is attached to a portion other than the stepped portion, and FIG. 10 is a panel mounting bracket that is attached to a portion other than the stepped portion. Panel is a perspective view showing a manner of fixing the base material to.
[0029]
A wall panel 1 shown in FIG. 1 is arranged vertically and horizontally to constitute an outer wall surface of a building. The wall panel 1 is made of a ceramic material such as a cement material, a concrete material, or a ceramic plate material. For example, a clay-like cement material is factory-produced by press molding.
[0030]
The wall panel 1 has a panel base portion 1a, and an underlap portion 1b composed of an upper side underlap 1b1 and a right side underlap 1b2. The surface of the underlap portion 1b is arranged on the back surface side of the wall panel rather than the back surface 1a1 of the panel base portion 1a. When a plurality of wall panels 1 are joined vertically and horizontally, the panel base portion 1a and the underlap portion 1b are thick. It is overlapped in the vertical direction. The right side underlap 1b2 is disposed on the right side as the side surface of the wall panel. However, the underlap may be provided on the left side and other configurations described later may be symmetrical.
[0031]
A first level end portion 1c whose surface recedes from the back surface of the other end of the upper side underlap 1b1 to the back side of the panel is formed at the end portion overlapping the right side underlap 1b2 of the upper side underlap 1b1. Further, the other end of the upper side underlap 1b1 has a second level end portion 1d whose surface is retracted to the back side of the panel from the back surface of the third level end portion 1b21 arranged at the lower end of the right side underlap 1b2. ing.
[0032]
When the wall panel 1 is adjacent in the horizontal direction as shown in FIG. 3A, the first level end portion of the upper side underlap 1b1 of the one wall panel 1 fixed as shown in FIG. The left base of the second level end 1d of the other wall panel 1 is overlaid on 1c, and the panel base 1a of the other wall panel 1 is overlaid on the right side underlap 1b2 of the fixed one wall panel 1. The back side 1a1 of is overlapped.
[0033]
The first level end portion 1c includes an overlapping portion of the upper side underlap 1b1 and the right side underlap 1b2, and further extends to the upper side of the panel base portion 1a. The end portion having the second level end portion 1d of the upper side underlap 1b1 is formed so as to be substantially flush with or protrude from the side surface of the panel base portion 1a. This is to secure the water stop performance described later by taking a sufficient overlapping portion.
[0034]
The first level end portion 1c has a fourth level portion 1c1 that is substantially flush with the second level end portion 1d when the wall panel 1 is joined to the left and right at a portion that does not overlap the second level end portion 1d. Have. Since the fourth level portion 1c1 does not overlap the second level end portion 1d, the fourth level portion 1c1 is formed to have a width corresponding to this. This improves the workability when the wall panel 1 is attached and is preferable because it can be unified in appearance with the second level end 1d.
[0035]
Further, the surfaces of the fourth level portion 1c1 and the second level end portion 1d have stepped portions 1c11 and 1d1, respectively, and recede from the surface of the upper side underlap 1b1 to the back side of the panel. Accordingly, when the first level end portion 1c and the second level end portion 1d are overlapped, the step portion 1c11 and the step portion 1d1 face each other, and the surfaces thereof are flush with each other. At the same time, the surfaces of the panel bases 1a adjacent to the left and right are also flush with each other. Further, the step portion 1c11 and the step portion 1d1 are located above the horizontal joint 7, thereby preventing the fourth level portion 1c1 and the second level end portion 1d from being seen through the horizontal joint 7, and after the installation. Appearance can be improved.
[0036]
When the plurality of wall panels 1 are joined to the left and right in this way, as shown in FIG. 3B, the second level end 1d overlaps in the thickness direction before the first level end 1c, A receding portion W composed of the first level end 1c and the second level end 1d is formed.
[0037]
The receding portion W is formed to be wider than the third level end portion 1b21, and is configured to accommodate the third level end portion 1b21 of the wall panel 1 adjacent to the upper level. Therefore, at the intersection of the vertical joint 6 and the horizontal joint 7, the third level end 1b21 is overlapped in front of the first level end 1c and the second level end 1d, and a four-wrap structure is formed together with the overlapping panel base. Constitute.
[0038]
Here, the right side underlap 1b2 is formed to have substantially the same width over the entire length from the first level end 1c to the third level end 1b21 at the upper end. The right side underlap 1b2 and the first level end 1c are continuously connected via the inclined portion 1b22.
[0039]
A concave portion 1e having a width wider than that of the third level end portion 1b21 and having a surface set back from the back surface of the third level end portion 1b21 toward the back side of the panel is formed at a substantially central portion in the horizontal direction of the upper side underlap 1b1. Yes. In this embodiment, the recess 1e is formed substantially flush with the second level end 1d. In the present embodiment, the receding portion W and the recess 1e are formed in substantially the same shape so as to unify the appearance and the mounting method. Accordingly, the third level end 1b21 can be accommodated in the recess 1e, and the relative arrangement of the adjacent upper and lower wall panels can be shifted.
[0040]
The surface of the recess 1e has a stepped portion 1e1 from the surface of the upper side underlap 1b1 and recedes to the back side of the panel. The step portion 1e1 is formed at the same height as the step portions 1c11 and 1d1 of the fourth level portion 1c1 and the second level end portion 1d.
[0041]
With the above configuration, as shown in FIG. 4, the third level end portion 1b21 of the upper wall panel 1 can be accommodated in both the retracted portion W and the recessed portion 1e. That is, when the wall panel 1 is installed next to the height direction, as shown in FIG. 4A, the receding portion W or the concave portion formed in the upper side underlap 1b1 of the fixed lower wall panel 1 is formed. 1e can be overlaid with the third level end 1b21 of the upper wall panel 1 to be joined later.
[0042]
At this time, as shown in FIGS. 4B and 4C, in the mutual portion of the upper side underlap 1b1 and the right side underlap 1b2 having the third level end 1b21, the underlaps 1b1 and 1b2 The surface is substantially flush. At the same time, since the position of the third level end 1b21 is regulated by the retreating portion W and the recess 1e, the surfaces of the adjacent panel base portions 1a can be configured to be flush with each other.
[0043]
The back side of the first level end 1c and the recess 1e protrudes to the base material side (indoor side) by a predetermined dimension from the back side of the upper side underlap 1b1. A plurality of convex portions 1p are provided on the back surface of the upper side underlap 1b1 at a predetermined interval. The projecting height of the first level end 1c, the recess 1e, and the protrusion 1p is such that a separation interval of 10 mm or more can be formed between the upper side underlap 1b1 and the column 4 or the intermediate column 5 as the base material. Is set. Thereby, as will be described later, the ventilation layer can be formed in communication with the back side of the panel base 1a in the vertical and horizontal directions.
[0044]
As shown in FIG. 5, a rectangular water return 11 is integrally formed on the upper side underlap 1b1 and the right side underlap 1b2 of the wall panel 1 over the entire area of the underlap portion 1b. FIG. 5 (a) is an example in which one line of water return 11 is formed at the upper end of the upper side underlap 1b1, and FIG. 5 (b) shows an example in which two lines of water return 11 are arranged in parallel. The effect of the breakwater can be further improved by providing double water return 11. The outer shape and the number of strips of the water return 11 may be other shapes or other plural strips.
[0045]
Each water return 11 is formed integrally with the wall panel 1 when the wall panel 1 is manufactured, and a portion corresponding to the shape of the water return 11 is formed in the mold in advance. By press-molding a clay-like cement material using such a mold, the wall panel 1 in which the water return 11 is formed in the underlap portion 1b is produced at the factory, and water return is simultaneously performed in the manufacturing process of the wall panel 1. Since 11 is formed, the production efficiency of the wall panel 1 is good.
[0046]
As shown in FIG. 6, a recess 1 f that engages with the panel mounting bracket 15 is formed on the lower surface of the panel base portion 1 a of the wall panel 1. A groove 1m corresponding to the plate thickness of the panel mounting bracket 15 is formed on the back surface 1a1 side of the panel base 1a of the recess 1f. Similarly, a predetermined gap is provided between the second level end 1d and the back surface of the right side underlap 1b2 for interposing the panel mounting bracket. Thereby, the panel mounting bracket 15 and the upper wall panel 1 do not interfere with each other in the height direction, and the horizontal joint 7 does not become uneven, and the lower panel base surface engaged by the panel mounting bracket 15; The upper panel base portion surface engaged from above the metal fitting 15 can be formed flush with each other.
[0047]
As shown in FIG. 7, the panel mounting bracket 15 is formed in a crank shape according to the shape of the upper side underlap 1 b 1 of the wall panel 1, and a locking portion 15 a provided at the tip of the panel mounting bracket 15 is provided on the wall panel 1. It is inserted into and engaged with a recess 1f formed on the lower surface of the panel base 1a, and the lower end of the upper wall panel 1 is locked. In addition, the vertical fixing piece 15b on the side fixed to the base material such as the column 4 or the spacer 5 of the panel mounting bracket 15 has an angle β between the horizontal piece 15c connected thereto and larger than 90 °. As shown in FIG. 8, the panel mounting bracket 15 is attached to the retreating portion W and the concave portion 1e, and the nail or the screw 3 is hit against the fixed piece 15b, as shown in FIG. By fixing to the base material such as the spacer 5 or the like, the upper end portion of the wall panel 1 is pressed and locked by the hanging piece 15d of the panel mounting bracket 15 as shown in FIG.
[0048]
Further, when a base material such as the pillar 4 or the inter-column 5 is disposed in a portion other than the receding portion W and the recessed portion 1e in the upper side underlap 1b1, the panel mounting bracket 15 shown in FIG. Thus, the panel mounting bracket 15 is attached to the part of the upper side underlap 1b1 other than the receding part W and the recessed part 1e, and the back surface of the upper side underlap 1b1 other than the receding part W and the recessed part 1e. The wall panel 1 is attached by the hanging piece 15d of the panel mounting bracket 15 by interposing the cushioning material 16 between and the base plate such as the pillar 4 or the interposition pillar 5 by hitting a nail or screw 3 to the fixing piece 15b. The upper end of the is pressed and locked.
[0049]
At this time, as shown in FIG. 10 (b), by providing a plurality of convex portions 1p at a predetermined interval on the back surface of the upper side underlap 1b1, the portion of the upper side underlap 1b1 other than the receding portion W and the concave portion 1e is obtained. However, the panel mounting bracket 15 can be pressed and locked to the column 4 and the inter-column 5. Thereby, a freedom degree can be increased to arrangement | positioning of the wall panel 1 with respect to the pillar 4 and the spacer 5. FIG.
[0050]
In this embodiment, as shown in FIGS. 7 (a) and 9 (a), the fixing piece 15b of the panel mounting bracket 15 is formed with a long hole 15f whose longitudinal direction is arranged in the panel width direction. . As a result, even when the center position in the panel width direction of the base material such as the pillars 4 and the intermediary pillars 5 is shifted during actual construction, the fixing position of the nail or screw 3 is adjusted within the range of the long hole 15f. The wall panel 1 can be fixed by driving a nail or a screw 3 into the center position in the panel width direction of the base material such as the column 4 or the inter-column 5.
[0051]
(Wall panel overlay structure)
Next, the superposition structure which comprises the outer wall surface of a building using the said wall panel 1 is demonstrated. FIG. 11 is an explanatory perspective view showing the overlapping structure of the wall panel according to the present invention, FIG. 12 is an explanatory perspective view showing another overlapping structure of the wall panel according to the present invention, and FIG. 13 is an illustration of the wall panel according to the present invention. FIG. 14 is an explanatory perspective view illustrating the structure of the ventilation layer formed by the overlapping structure, FIG. 14 is an explanatory view of the overlapping structure regarding the wall panel and the interior material, FIG. 15 is an explanatory perspective view illustrating the circulation route of rainwater, and FIG. FIG. 17 is a cross-sectional explanatory view showing a state in which water is drained by drain means provided at the lower part of the bottom wall panel.
[0052]
First, as shown in FIG. 11 and FIG. 12, the waterproof sheet 2 is stretched on the pillars 4 and the inter-columns 5 that are erected at a predetermined pitch, and the panel base portion is attached to a locking portion of a mounting hardware (not shown) provided at the lowest stage. As shown in FIGS. 8 and 10, the panel mounting bracket 15 is attached to the retracted portion W, the recessed portion 1e or the other upper side underlap 1b1 as shown in FIGS. The nails and screws 3 are driven into and fixed to the base material such as the pillars 4 and the intermediate pillars 5.
[0053]
At this time, as described above, the third level end portion 1b21 of the upper wall panel 1 can be overlaid on both the retracted portion W and the recessed portion 1e (see FIG. 4). Therefore, as shown in FIG. 11, the vertical joints 6 of the wall panel 1 are arranged in a brick combination, or the block combination of the vertical panels 6 of the wall panel 1 is arranged as shown in FIG. As a result, the surface of the panel base portion 1a can be continuously joined to be flush with each other, so that an overall planar outer wall surface can be easily formed. The vertical joints 6 and the horizontal joints 7 that are the vertical and horizontal joints of the wall panel 1 that are overlapped with each other are not particularly sealed with a sealing material or the like.
[0054]
Further, as described above, the first level end portion 1c, the concave portion 1e, and the convex portion 1p can form a separation interval of 10 mm or more between the back surface of the upper side underlap 1b1 and the column 4 or the intermediate column 5 as the base material. The protruding height is set, and each wall panel 1 is fixed to the column 4 and the inter-column 5 at these portions. That is, the underlap portion 1b of each wall panel 1 is spaced apart by a predetermined distance of 10 mm or more from the surface of the waterproof sheet 2 at portions other than the receding portion W, the concave portion 1e, and the convex portion 1p of the upper side underlap 1b1. It is fixed with.
[0055]
Further, as shown in FIG. 14, by providing a plurality of convex portions 1p, even if a lateral copper edge 67 for attaching the interior material 68 to the indoor side of the stud 5 is assembled, it tends to bulge into the ventilation layer 65. The fiber-based heat insulating material 66 can be suppressed, and a ventilation layer can be secured.
[0056]
Therefore, as shown by the arrows in FIG. 13, the ventilation layer is formed between the waterproof sheet 2 and the back surface of the underlap portion 1b in a vertically and horizontally continuous state. A ventilation layer having more direction than the example is secured, and the ventilation performance can be improved and the durability of the wall panel 1 and the building can be improved. Further, since the body edge 55 is not required unlike the conventional example described above, the number of parts can be reduced, the part cost can be reduced, the number of construction steps can be reduced, and the construction period can be shortened.
[0057]
As shown in FIG. 11, a base draining member 12 serving as a drainage means capable of draining to the outdoor side of the wall panel 1 ′ is arranged from the indoor side to the lower side of the lowermost wall panel 1 ′. The base draining member 12 has a Z-shaped cross section, and is fixed to a base beam 14 disposed on the top of the column 4 or the intermediate column 5 or the fabric foundation 13 of the building over the entire width of the outer wall surface in the horizontal direction.
[0058]
On the other hand, the upper surface of the panel base 1a of the wall panel 1 is formed with an inclined surface 1g capable of draining as shown in FIG. 16 (d). The inclined surface 1g has an inclination angle α with respect to the horizontal plane so that rainwater circulating around the underlap portion 1b of the wall panel 1 can be drained to the outdoor side of the wall panel 1 through the inclined surface 1g. It has become.
[0059]
FIG. 15 generally shows a circulation route and a drainage route through which rainwater entering from the vertical joint 6 and the horizontal joint 7 which are the vertical and horizontal joint portions of the wall panel 1 overlapped with each other circulates in the underlap portion 1b of the wall panel 1. It is a thing. As shown in FIG. 15, when rainwater enters from the vertical joint 6 and the horizontal joint 7 which are the joint portions where the wall panels 1 are overlapped with each other, the entering rainwater is received by the underlap portion 1b of the wall panel 1 and is indoors. Further, as shown in FIGS. 16 and 17, the rainwater circulates to the underlap portion 1b of the other wall panel 1 and is drained to the outdoor side.
[0060]
That is, rainwater that has entered from the horizontal joint 7 which is the joint between the wall panels 1 is drained to the surface of the lower wall panel 1 via the inclined surface 1g shown in FIG. As shown in (a), it flows around the upper side underlap 1b1 in the left-right direction along the upper side underlap 1b1, and from the receding portion W formed in the upper side underlap 1b1, the inclined portion 1b22, the right side underlap 1b2 It flows along the route. As shown in FIGS. 16 (b) and 16 (c), the rainwater that has traveled to the right side underlap 1b2 of the underlap portion 1b further reaches the upper side underlap 1b1 of the lower wall panel 1 to form the inclined surface 1g. Then, the water is drained to the surface of the panel base 1a of the lower wall panel 1 or travels to the underlap portion 1b of the lower wall panel 1 through the same path as described above. By repeating this, as shown in FIG. 17, finally, the foundation water draining member 12 provided at the lower part of the lowermost wall panel 1 ′ is landed on the foundation of the building, and the base water draining member 12 is interposed. And drained to the outdoor side of the wall panel 1.
[0061]
In this way, the rainwater that has entered from the vertical joints 6 and the horizontal joints 7 that are the vertical and horizontal joints of the wall panel 1 can be circulated and drained in the underlap portion 1b of the wall panel 1, Water leakage to the indoor side can be reliably prevented, and the work process for sealing the joint can be omitted, so that it can be a dry construction method, construction can be easily and reliably and uniformly, The construction period can be greatly shortened.
[0062]
In particular, at the intersection of the vertical joint 6 and the horizontal joint 7, four wraps of the first level end 1c, the second level end 1d, the third level end 1b21 of the upper wall panel 1, and the panel base of the upper wall panel 1 Since it can be structured, the abutment 60 between the backs 51a is not formed as in the conventional example shown in FIG. 20, and water leakage to the indoor side is surely prevented even in the dry type. Can do.
[0063]
Further, the back surface 1a1 of the panel base portion 1a of one adjacent wall panel 1 and the underlap portion 1b of the other wall panel 1 are interposed with a water return 11 formed integrally with the underlap portion 1b. Since it is attached by overlapping in the thickness direction of the wall panel 1, it can be a dry construction that can prevent the invasion of wind and rain without filling the vertical joint 6 and the horizontal joint 7 of the wall panels 1 with a sealing material, Construction is easy and the construction period can be shortened.
[0064]
(Other embodiments)
In the above embodiment, the fourth level portion 1c1, the second level end portion 1d, and the concave portion 1e are formed so as to recede from the upper side underlap 1b1 to the back side of the panel with step portions 1c11, 1d1, and 1e1, respectively. did. However, in the present invention, the stepped portions 1c11, 1d1, and 1e1 are not essential components, and as shown in FIG. 18 (a), the stepped portions may not be provided. If configured in this way, the depressions of the level portions 1c1, 1d, and 1e may be seen from the horizontal joint 59, but the function of the wall panel 1 according to the present invention, that is, the ventilation performance and the water stop performance is not impaired. .
[0065]
In addition, it has been described that the fourth level portion 1c1 that is substantially flush with the second level end portion 1d is formed in a portion that does not overlap the second level end portion 1d of the first level end portion 1c, as shown in FIG. As described above, the fourth level portion 1c1 may not be provided. This is because when the second level end portion 1d is pressed by the panel mounting bracket 15, it is pressed by the pillar 4 or the intermediate pillar 5 via the first level end portion 1c superimposed on the back surface thereof, so that the fourth level portion This is because the left and right wall panels 1 can be fixed without 1c1. However, it is preferable to provide the fourth level portion 1c1 because the workability at the time of attachment is good and the appearance of the second level end portion 1d and the concave portion 1e can be unified.
[0066]
FIG. 18 (c) shows an example in which the end portion having the second level end portion is formed by protruding from the side surface of the panel base portion. Thereby, a further sufficient lapping part can be taken and the water stop performance can be improved. At this time, as shown in the figure, the fourth level portion 1c1 is formed with a short dimension in the width direction in accordance with the protruding length of the second level end portion 1d.
[0067]
Further, in the present embodiment, the case where the concave portion 1e is provided at one place in the substantially central portion in the lateral direction of the upper side underlap 1b1 has been described. However, as shown in FIG. Depending on the pitch, a plurality of recesses 1e may be formed at a predetermined position at a predetermined pitch. Further, as shown in FIG. 19 (b), the recess 1e may be formed over the entire width of the upper side underlap 1b1. In this case, the second level end 1d, the fourth level 1c1, and the recess 1e formed on the same plane are all the same plane and are not distinguished. Even if formed in this way, there is no effect on the locking of the wall panel 1 by the panel mounting bracket 15, and the relative arrangement of the upper and lower wall panels 1 can be made arbitrary, and the outer wall surface is constructed. The degree of freedom can be increased.
[0068]
【The invention's effect】
As described above, according to the wall panel and the wall panel overlapping structure according to the present invention, the water stopping performance is greatly improved, and even in dry construction, it is possible to reliably prevent flooding. Since dry construction can be performed in this way, there is no need to post-process the wall panel such as filling with a sealing material and the like, the number of construction steps can be reduced, construction is easy, and the construction period can be shortened.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view showing a configuration of a wall panel according to the present invention.
2A is a schematic cross-sectional view in the XX direction of FIG. 1 and a diagram showing an overlapping state. FIG. 2B is a schematic cross-sectional diagram in the YY direction of FIG.
3A is a perspective explanatory view showing a state in which wall panels adjacent to each other on the left and right are overlapped with each other, and FIG. 3B is a partially enlarged view showing an overlap state between the underlap portions of the wall panels adjacent to each other on the left and right. is there.
FIG. 4A is a perspective explanatory view showing a state in which the vertically adjacent wall panels are overlapped with each other, and FIG. 4B is formed at a predetermined position in the middle of the underlap portion on the upper side of the vertically adjacent wall panel. (C) is a partially enlarged view showing the overlapping state of the underlap portions in the stepped portion, and (c) is the mutual relationship between the underlap portions in the stepped portion formed at the end of the underlap portion on the upper side of the adjacent wall panel. It is the elements on larger scale which show the superposition state of.
FIGS. 5A and 5B are cross-sectional explanatory views showing a structure of water return integrally provided in an underlap portion of a wall panel.
6A is a cross-sectional explanatory view showing a state in which a wall panel is attached with a panel mounting bracket, and FIG. 6B is a portion showing a configuration of a groove formed on the lower surface of the panel base portion that engages with the panel mounting bracket. It is an enlarged view.
7A is a perspective explanatory view showing a configuration of a panel mounting bracket attached to the stepped portion, and FIG. 7B is a sectional explanatory view showing a configuration of the panel mounting bracket attached to the stepped portion.
FIGS. 8A and 8B are perspective views illustrating a state in which a wall panel is fixed to a base material by a panel mounting bracket that is attached to a stepped portion.
9A is a perspective explanatory view showing a configuration of a panel mounting bracket attached to a portion outside the stepped portion, and FIG. 9B is a cross-sectional explanatory view showing a configuration of the panel mounting bracket attached to a portion outside the stepped portion. is there.
FIG. 10 is a perspective explanatory view showing a state in which a wall panel is fixed to a base material by a panel mounting bracket that is attached to a portion other than a stepped portion.
FIG. 11 is an explanatory perspective view showing a stacked structure of wall panels according to the present invention.
FIG. 12 is a perspective explanatory view showing another overlapping structure of the wall panel according to the present invention.
FIG. 13 is a perspective explanatory view showing a configuration of a ventilation layer formed by a laminated structure of wall panels according to the present invention.
FIG. 14 is an explanatory diagram of a wall panel overlapping structure related to the wall panel and the interior material.
FIG. 15 is an explanatory perspective view illustrating a circulation route of rainwater.
FIGS. 16A to 16C are partial enlarged views for explaining a circulation route of rainwater, and FIG. 16D is a cross-sectional explanatory view showing a configuration in which the upper surface of the panel base is formed with an inclined surface.
FIG. 17 is a cross-sectional explanatory view showing a state in which water is drained by drain means provided at the lower part of the lowermost wall panel.
FIG. 18 is a diagram illustrating another embodiment of a wall panel according to the present invention.
FIG. 19 is a diagram illustrating another embodiment of a wall panel according to the present invention.
FIG. 20 is a diagram illustrating a wall panel according to a conventional example.
FIG. 21 is a diagram illustrating a wall panel according to a conventional example.
FIG. 22 is an explanatory diagram of a stacked structure of wall panels related to a wall panel and interior materials according to a conventional example.
[Explanation of symbols]
W ... Backward part
1 ... Wall panel
1 '... Bottom panel
1a: Panel base
1a1… Back side
1b: Underlap part
1b1… Upper side underlap
1b2… Right side underlap
1b21… Third level edge
1b22… Inclined part
1c ... 1st level edge
1c1… 4th level section
1c11… Step part
1d ... second level end
1d1… Step part
1e ... recess
1e1… Step part
1f ... concave groove
1g ... inclined surface
1m ... groove
1p ... convex part
2 ... tarpaulin
3 ... screw
4 ... pillar
5 ... stud
6… Vertical joint
7 ... Yokomata
10… opening
11… water return
12… Foundation drainer
13… Cloth foundation
14… foundation beam
15 Panel mounting bracket
15a ... Locking part
15b ... fixed piece
15c ... Horizontal piece
15d ... hanging piece
15f… oblong hole
16 ... cushioning material
51… Wall panel
51a ... back
51b ...
52… Pillar
53… studs
54… tarpaulin
55… trunk edge
58… Vertical joint
59… Yokomata
60… the abutment
65… Ventilation layer
66… Fiber insulation
67… Horizontal copper edge
68… Interior materials
70… Wall panel
71… Upper side underlap
72… Side underlap
72a ... lower end
73… Step
74a ... Stepped wall surface component
74b ... Stepped wall surface component

Claims (4)

In the wall panel where the back surface of the panel base and the underlap are attached to each other in the thickness direction,
A first level end portion disposed at one end of the underlap portion on the upper side of the panel, the surface of which is retracted from the other end of the underlap portion toward the back side of the panel;
A second level end that is disposed at the other end of the underlap portion on the upper side of the panel and can be overlapped with the first level end portion, the surface of the underside of the underlap portion on the side of the panel receding from the lower end of the panel to the back side of the panel; ,
A third level end that is disposed at the lower tip of the underlap portion on the side of the panel and can be overlapped with the second level end;
The wall panel according to claim 1, wherein a width of a receding portion including the first level end portion and the second level end portion is formed wider than at least the width of the third level end portion. The underlap portion on the upper side of the panel is formed with a recess having a width wider than that of the third level end portion and a surface receding from the third level end portion toward the panel back side. Wall panel. The wall panel according to claim 1, wherein a water return is integrally provided in the underlap portion. Using the wall panel according to any one of claims 1 to 3, in the overlapping structure of the wall panel that is attached by overlapping the back surface of the panel base and the underlap portion in the thickness direction,
A first level end portion disposed at one end of the underlap portion on the upper side of the panel, the surface of which is retracted from the other end of the underlap portion toward the back side of the panel;
The second level end located on the other end of the underlap portion on the upper side of the panel is overlapped with the first level end,
A wall panel overlapping structure, characterized in that a third level end portion arranged at the lower end of the underlap portion on the side of the panel is overlapped with the second level end portion.

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