JP2016075112A - Exterior wall panel, and joint structure on exterior wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an exterior wall panel and a joint structure for an exterior wall that give a sharp impression while ensuring waterproof performance.SOLUTION: An exterior wall panel 11 includes: a first side surface 131 disposed on an edge part of the exterior wall panel 11, being perpendicular to a front surface 12 of the exterior wall panel 11; a first bottom surface 111 bending perpendicularly from an edge C1 of the first side surface 131 on a front surface side toward a center of the exterior wall panel 11, being in parallel to the surface of the exterior panel 11; a second side surface 132 curved or bent in a convex form from an inner edge C2 of the first bottom surface 111 toward a front surface, with a tangent line at an edge on the front surface side inclined upward when seen in a cross-section view; and a third side surface 133 extending from an edge E2 on a front surface side of the second side surface 132 to an edge E1 of the exterior wall panel 11, the edge E2 on the front surface side of the second side surface 132 being formed as an internal angle.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an outer wall panel and a joint structure of an outer wall.

  Conventionally, in a building constructed by attaching an outer wall panel made of lightweight cellular concrete (ALC) or the like, a joint structure in which a sealing material is filled in a joint formed between adjacent outer wall panels to ensure waterproof performance is known. Yes.

  As what loads a sealing material in such a joint, for example, the one described in Patent Document 1 below is known. Patent Document 1 below describes a cross-sectional shape of a sealing pocket in which a sealing material is cast on a joint. More specifically, as shown in FIG. 5, it is a cross-sectional shape of the sealing pocket 1 of the joint in the exterior panel, and there is a side surface portion 9 that gradually opens from the bottom surface portion 2 to the outlet, and the outlet has a corner shape. A joint having the first sealing pocket 4 and the second sealing pocket 5 having a slight rising portion 16 that is parallel or slightly opened from the outlet to the front surface side and the end of the rising portion 16 has a protruding corner shape is as follows. It is described in Patent Document 1. By configuring the cross-sectional shape of the sealing pocket in this way, a smooth curved shape is drawn in a cross-sectional view, and the outer wall panel design can be improved while ensuring waterproofness.

JP 2001-049830 A

  By the way, in the joint structure formed between the outer wall panels, there are many customers who prefer a structure that gives a sharp impression. In the joint structure described in Patent Document 1, a smooth curved shape is drawn as the whole joint structure in a cross-sectional view, and thus the customer feels a smooth impression as the whole outer wall panel. In such a structure, it is possible to satisfy the demands of customers who prefer an outer wall panel that feels a smooth impression, but it cannot satisfy the needs of customers who prefer an outer wall panel that feels a sharp impression. There was a problem. As described above, in the related art, there still remains a problem to be improved with respect to the outer wall panel and the joint structure of the outer wall that gives a sharp impression while ensuring the waterproof performance.

  This invention is made | formed in view of such a subject, and it aims at providing the outer wall panel which can give a sharp impression, ensuring the waterproof performance, and the joint structure of an outer wall.

  In order to solve the above problems, an outer wall panel according to the present invention is an outer wall panel in which a joint portion is formed between adjacent outer wall panel bodies, and is provided at an edge of the outer wall panel body. A first side surface which is a surface perpendicular to the surface of the main body, and a right side bend toward the center direction of the outer wall panel body from the edge of the surface side of the first side surface, and parallel to the surface of the outer wall panel body A first bottom surface, a second side surface that is curved or bent in a convex shape from the inner edge of the first bottom surface toward the surface direction, and a tangent at an end portion on the surface side in a sectional view is an upward slope; A third side surface extending from a surface side edge of the two side surfaces to an edge of the outer wall panel main body, and a surface side edge of the second side surface having a corner shape.

  In the outer wall panel according to the present invention, it is an end edge portion of the outer wall panel body and extends from the surface side edge of the second side surface to the edge of the outer wall panel body, and the surface side edge of the second side surface is the corner. And a third side surface that is shaped. For this reason, since the corner part of the 2nd side and the 3rd side is visually recognized as a straight line, the outer wall panel which can give a sharp impression, ensuring waterproof performance can be provided.

  Further, in the outer wall panel according to the present invention, a decorative vertical groove is formed in a direction parallel to the longitudinal direction of the joint portion, and the cross-sectional shape of the decorative vertical groove is based on a pair of opposing third side surfaces in the joint portion. It is also preferable to have a second bottom surface corresponding to a straight line connecting the ends and a fourth side surface corresponding to the third side surface.

  Further, in the outer wall panel according to the present invention, a decorative lateral groove is formed in a direction orthogonal to the longitudinal direction of the joint portion, and the bottom surface of the decorative lateral groove is located on the surface side of the edge on the surface side in the second side surface. It is also preferable.

  Further, the joint structure of the outer wall according to the present invention is configured in a state in which the first side surfaces are substantially in contact with each other using the two outer wall panels according to any one of claims 1 to 3. The concave portion is defined by a bottom surface extending in the center direction of the outer wall panel body from the edge on the surface side of the first side surface and a second side surface extending in the surface direction of the outer wall panel body from the inner edge of the bottom surface. And having a wet sealant filling the recess.

  ADVANTAGE OF THE INVENTION According to this invention, the joint structure of the outer wall panel and outer wall which can give a sharp impression, ensuring waterproof performance can be provided.

It is a schematic sectional drawing which shows the outer wall panel in embodiment of this invention. It is a figure for demonstrating a makeup | decoration vertical groove and a makeup | decoration horizontal groove. It is a figure for demonstrating a makeup | decoration horizontal groove. It is an enlarged view of the circle IV shown in FIG. It is a figure for demonstrating the conventional outer wall panel.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

  First, the joint structure of the outer wall panel and the outer wall in the embodiment of the present invention will be described with reference to FIG. FIG. 1 is a schematic cross-sectional view showing a joint 3 (joint structure) formed between adjacent outer wall panels 11 (outer wall panel main bodies).

  In FIG. 1, the upper side of the outer wall panel 11 is the outside air side and the lower side is the indoor side. In the following description, the upper side (upward direction) of the outer wall panel 11 in FIG. 1 is referred to as “front side (front direction)”, and the lower side (downward direction) of the outer wall panel 11 in FIG. 1 is referred to as “back side (back direction)” or “back side (back direction)” of the outer wall panel 11. I will do it. The center side (direction toward the center) of the outer wall panel 11 is referred to as “inside (center direction)” of the outer wall panel 11.

  The outer wall panel 11 is a rectangular plate-like member made of, for example, generally distributed ALC (Autoclaved Light-weight Concrete), and is mounted side by side on the outer peripheral portion of the steel structure building. It constitutes. Other specific examples of the outer wall panel 11 include PCa plate, GRC, extrusion-molded cement plate, ceramic siding, metal siding, painted steel plate, metal panel, glass, stone, and the like.

  As shown in FIG. 1, a joint 3 (joint structure) is formed between adjacent outer wall panels 11, and the joint 3 includes a first side 131, a first bottom 111, a second side 132, And three side surfaces 133. The surface including the first side surface 131, the first bottom surface 111, the second side surface 132, and the third side surface 133 is also referred to as an “end edge” of the outer wall panel 11.

  The first side surface 131 is a surface located on the back side (lower side in FIG. 1) of the joint 3 and is a surface perpendicular to the surface 12 of the outer wall panel 11. The first side surface is located behind the second side surface 132 and the third side surface 133. When the plurality of outer wall panels 11 are arranged so as to be flush with each other, as shown in FIG. 1, the first side surfaces 131 of the adjacent outer wall panels 11 are substantially in contact with each other. Thus, the joint structure of the outer wall is configured with the first side surfaces 131 substantially in contact with each other.

  The first bottom surface 111 is formed from the edge C1 on the surface side of the first side surface 131 toward the center of the outer wall panel 11 (leftward relative to the left outer wall panel 11a shown in FIG. 1, and right outer wall panel 11b shown in FIG. Is a surface that is bent at a substantially right angle toward the right direction) and parallel to the surface 12 of the outer wall panel 11. In FIG. 1, the first bottom surface 111 is a surface parallel to the surface 12 of the outer wall panel 11, but is not limited to this, and various shapes such as a bent shape and a curved shape are selected. obtain.

  The second side surface 132 is directed from the edge C2 on the inner side of the first bottom surface 111 (left side with respect to the left outer wall panel 11a in FIG. 1 and right side with respect to the right outer wall panel 11b in FIG. 1) toward the surface. The surface is curved or bent in a convex shape. As shown in FIG. 1, in the joint 3 (joint structure) of the outer wall 1 in the present embodiment, the first bottom surface extending in the center direction of the outer wall panel 11 from the edge C <b> 1 on the surface side of the first side surface 131 described above. 111 (bottom surface) and a second side surface 132 extending in the surface direction from the inner edge C2 of the first bottom surface 111 define a groove (concave portion) having a concave shape in section, and the concave portion is filled with the sealing material 51. Is.

  The second side surface 132 will be further described. The second side surface 132 includes a surface 132a on the surface side (upper side in FIG. 1) and a surface 132b on the back side (lower side in FIG. 1), and the lower end of the rear side surface 132b is the edge of the first bottom surface 111. Connected to C2. The rear corner 132 of the second side surface 132 and the surface 132a of the front surface 132a of the second side 132 intersect with each other, thereby forming a protruding corner C3. The surface (end part) 132a on the surface side of the second side surface 132 has an inclined surface so that the joint 3 becomes wider from the back side toward the surface side. More specifically, the end portion 132a of the second side surface 132 has a surface that is inclined so that the tangent line at the end portion 132a has an upward slope. In FIG. 1, the back side surface 132b of the second side surface and the surface side surface 132a of the second side surface 132 each have a planar shape. However, the present invention is not limited to this. Various shapes such as a shape and a curved shape can be selected.

  The third side surface 133 is a surface extending from the surface side edge E <b> 2 of the second side surface 132 (hereinafter also referred to as “base end E <b> 2 of the third side surface 133”) to the surface side edge E <b> 1 of the outer wall panel 11. When the third side surface 133 and the second side surface 132 intersect, the base end E2 of the third side surface 133 has a corner shape. The third side surface 133 is provided so as to extend linearly from the base end E2 to the end edge E1 of the outer wall panel 11. As shown in FIG. 1, the third side surface 133 has a planar shape opened from the base end E2 toward the end edge E1 of the outer wall panel 11 so that the joint 3 becomes wider. 11 may have a planar shape perpendicular to the surface 12, and various shapes and sizes may be selected. Details of the dimensions of the third side surface 133 will be described later with reference to FIG.

  The sealing material 51 will be described. As shown in FIG. 1, the joint material 3 between the adjacent outer wall panels 11 is filled with a sealing material 51. The sealing material 51 has a function of making the joint 3 between the outer wall panels 11 into a watertight structure, for example. As shown in FIG. 1, the sealing material 51 is filled from the first bottom surface 111 located on the back side of the joint 3 to the base end E <b> 2 (entrance corner) of the third side surface 133. In other words, the sealing material 51 is filled up to the corner formed by the second side 132 and the third side 133 (so as not to cover the corner). By comprising in this way, an entrance corner part and an exit corner part (edge E1 of the surface side of the outer wall panel 11) are visually recognized as a straight line, and a sharp impression can be given. Further, as shown in FIG. 1, the sealing material 51 filled in the vicinity of the surface 132 a on the second side surface 132 is gradually reduced in thickness from the back side to the surface side. Can be made difficult to occur.

  As the sealing material 51, a wet sealing material (wet sealing material) generally distributed according to the material of the outer wall panel can be appropriately selected and used. Especially for the outer wall panel made of ALC. A sealing material such as a modified silicone type, an acrylic urethane type, or a polyurethane type, which is rich in flexibility and hardly causes destruction of the base material when deformed by an external force such as an earthquake, is preferable. Specific examples include silicones, modified silicones, polysulfides, acrylic urethanes, polyurethanes, modified polysulfides, acrylics, SBRs, butyl rubbers, and polyisobutylenes as defined in JIS A 5758: 1997. Etc. The paste-like sealing material 51 is placed on the joint 3 (recessed portion) using, for example, a sealing gun, and then filled into the joint 3 (recessed portion) by pressurizing the surface with a spatula while pressing. The surface of the sealing material 51 is finished smoothly.

  The spatula has a tip shape corresponding to the cross-sectional shape of the surface of the joint 3 (in this embodiment, a straight line shape), and the corners at both ends of the tip are not spaced from the base ends E2 of the two third side surfaces 133. It is preferable to use one configured to contact. By using such a spatula, that is, by keeping the corners at both ends of the tip in contact with the base end E2 of the third side surface 133, the surface of the joint 3 is undulated and the aesthetic appearance is impaired. And the filling amount of the sealing material 51 necessary for performance can be secured.

  Next, the makeup longitudinal groove 31 and the makeup lateral groove 41 will be described with reference to FIGS. 2 and 3. FIG. 2 is a schematic perspective view showing a part of the outer wall 1 of the building. FIG. 3 is a diagram for further explaining the decorative lateral groove 41. The direction in which the joint 3 extends in FIG. 2 (the vertical direction in FIG. 2) corresponds to the “longitudinal direction of the joint”.

  As shown in FIG. 2, a plurality of outer wall panels 11 are connected in a flush manner to constitute the outer wall 1 of the building. As described above, the joint 3 is formed between the adjacent outer wall panels 11, and the joint 3 is filled with the sealing material 51. And the makeup | decoration vertical groove | channel 31 is provided so that it may correspond to the said joint 3 so that it may extend in the vertical direction (FIG. 2 up-down direction) of the outer wall 1. As shown in FIG.

  The decorative longitudinal groove 31 is formed to extend in a direction parallel to the joint 3 (up and down direction in FIG. 2). The decorative longitudinal groove 31 is open to the surface side of the outer wall panel 11 and is formed in a concave shape in cross section. The decorative longitudinal groove 31 has a longitudinal groove side bottom surface 311 (second bottom surface) located on the bottom surface side in a sectional view and a pair of longitudinal groove side surfaces 312 (fourth side surface) located on the side surface side.

  As shown in FIG. 2, the second bottom surface 311 is a plane parallel to the surface 12 of the outer wall panel 11. The second bottom surface 311 is formed so as to correspond to a straight line connecting the base ends E <b> 2 of the pair of third side surfaces 133 facing each other in the joint 3. The fourth side surface 312 is perpendicular to the surface 12 of the outer wall panel 11 or slightly inclined (the width of the decorative vertical groove 31 (the size in the left-right direction in FIG. 2) becomes wider from the back side toward the surface side. It is a flat surface inclined. The pair of fourth side surfaces 312 is formed so as to correspond to the pair of third side surfaces 133 in the joint 3. In FIG. 2, the vertical groove side bottom surface 311 and the vertical groove side surface 312 have a planar shape. However, the shape is not limited thereto, and various shapes such as a curved surface shape and a curved shape can be formed.

  A decorative lateral groove 41 is formed between the outer wall panels 11 adjacent in the vertical direction (vertical direction in FIG. 2). The decorative lateral groove 41 is provided so as to extend in a direction (left and right direction in FIG. 2) substantially orthogonal to the direction in which the joint 3 extends (longitudinal direction of the joint).

  As shown in FIG. 3, the decorative lateral groove 41 is formed in a concave shape in sectional view by opening on the surface side of the outer wall panel 11. The decorative lateral groove 41 has a lateral groove side bottom surface 411 (third bottom surface) positioned on the bottom surface side in a cross-sectional view and a pair of lateral groove side surfaces 412 positioned on the side surface side. The position of the third bottom surface 411 in the decorative lateral groove 41 is provided on the surface side of the surface including the edge E2 on the surface side of the second side surface 132 of the joint 3 (the base end E2 of the third side surface 133). . In other words, the depth of the decorative lateral groove 41 is shallower than the depth of the third side surface 133 (the distance from the surface 12 of the outer wall panel 11 to the base end E2 of the third side surface 133).

  As described above, the depth of the decorative lateral groove 41 is shallower than the depth of the third side surface 133 (the distance from the surface 12 of the outer wall panel 11 to the base end E2 of the third side surface 133). Even when the sealing material 51 filled up to the base end E <b> 2 is filled, the sealing material 51 can be prevented from protruding into the decorative lateral groove 41.

  Next, the third side surface 133 will be further described with reference to FIG. FIG. 4 is an enlarged view inside the circle IV shown in FIG.

  As shown in FIG. 4, the third side surface 133 is inclined at a predetermined angle from a direction perpendicular to the surface 12 of the outer wall panel 11. Specifically, the third side surface 133 has a dimension D3 in the direction perpendicular to the surface 12 of the outer wall panel 11 (the distance in the vertical direction (the vertical direction in FIG. 4) between E1 and E2) is, for example, about 9 mm. The horizontal dimension D4 (the distance in the horizontal direction between E1 and E2 (left and right direction in FIG. 4)) with respect to the surface 12 of the outer wall panel 11 is inclined so as to be about 2 mm to 4 mm, for example. Note that the third side surface 133 is not limited to the dimensions and angles shown in FIG. 4, and the third side surface 133 may be formed so as to be substantially perpendicular to the surface 12 of the outer wall panel 11. The size can be selected. Further, the third side surface 133 in the present embodiment has a planar shape from the base end E2 to the edge E1 on the surface side of the outer wall panel 11, but is not limited thereto, and is bent or bent in the middle. You may have a shape.

  Since the third side surface 133 is provided as shown in FIG. 4, the dimension D1 in the width direction of the joint 3 (see FIG. 1 and the like) is larger than the dimension D2 in the width direction of the conventional joint (see FIG. 5). The dimensions are small. Since it is configured in this manner, even if dirt such as dust adheres to the joint 3 (for example, the surface of the third side surface 133 or the sealing material 51), the dirt can be made inconspicuous. Moreover, in the joint 3 in this embodiment, since the sealing material 51 is filled in a position deeper from the surface 12 of the outer wall panel 11 than in the past, even if dirt is attached to the joint 3, the dirt can be made inconspicuous. .

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. In other words, those specific examples that have been appropriately modified by those skilled in the art are also included in the scope of the present invention as long as they have the characteristics of the present invention. Each element included in each of the specific examples described above and their arrangement, material, condition, shape, size, and the like are not limited to those illustrated, and can be appropriately changed.

1: Outer wall 3: Joint (joint structure)
11: Outer wall panel 31: Makeup vertical groove 41: Makeup horizontal groove 51: Sealing material 111: First bottom surface 131: First side surface 132: Second side surface 133: Third side surface 311: Vertical groove side bottom surface (second bottom surface)
312: Vertical groove side surface (fourth side surface)
411: Horizontal groove side bottom surface (third bottom surface)

Claims (4)

An outer wall panel in which a joint portion is formed between adjacent outer wall panel bodies,
A first side surface that is provided at an edge of the outer wall panel body and is a surface perpendicular to the surface of the outer wall panel body;
A first bottom surface that is bent at a right angle from the edge of the surface side of the first side surface toward the center direction of the outer wall panel body, and is parallel to the surface of the outer wall panel body;
A second side surface that is curved or bent in a convex shape from the inner edge of the first bottom surface toward the surface direction, and the tangent line at the end portion on the surface side in the sectional view is an upward slope;
A third side surface extending from the edge on the surface side of the second side surface to the edge of the outer wall panel main body, and the edge on the surface side of the second side surface has a corner shape,
With outer wall panel. A makeup longitudinal groove is formed in a direction parallel to the longitudinal direction of the joint portion,
The cross-sectional shape of the decorative longitudinal groove has a second bottom surface corresponding to a straight line connecting the base ends of the pair of opposing third side surfaces in the joint portion, and a fourth side surface corresponding to the third side surface. The outer wall panel according to claim 1. A decorative lateral groove is formed in a direction orthogonal to the longitudinal direction of the joint portion,
2. The outer wall panel according to claim 1, wherein the third bottom surface located on the bottom surface side of the decorative lateral groove is located on the surface side of the base end of the third side surface. A joint structure of an outer wall configured in a state in which the first side surfaces are substantially in contact with each other using the two outer wall panels according to any one of claims 1 to 3,
A recess is defined by a bottom surface extending in the center direction of the outer wall panel body from the edge on the surface side of the first side surface, and a second side surface extending in the surface direction of the outer wall panel body from the inner edge of the bottom surface, The joint structure of the outer wall which has the wet sealing material with which the said recessed part is filled.

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