JP2018159224A - Projected corner structure - Google Patents

Projected corner structure Download PDF

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JP2018159224A
JP2018159224A JP2017056653A JP2017056653A JP2018159224A JP 2018159224 A JP2018159224 A JP 2018159224A JP 2017056653 A JP2017056653 A JP 2017056653A JP 2017056653 A JP2017056653 A JP 2017056653A JP 2018159224 A JP2018159224 A JP 2018159224A
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pair
corner structure
joiner
extends
wall
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JP6946032B2 (en
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大 中村
Masaru Nakamura
大 中村
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Asahi Tostem Exterior Building Materials Co Ltd
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Asahi Tostem Exterior Building Materials Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a projected corner structure which can reduce the shear force applied to the sealing material and which is easy to construct.SOLUTION: A projected corner structure 1 formed by joining end portions of a pair of outer wall members 2 butt-joined via a joiner 3, in which one of the pair of outer wall members 2 has a protrusion 24 for shiplap formed on the side of the surface 2a at the end constituting the corner structure 1 and a recess 23 for shiplap formed on the back side 2b side, and the joiner 3 has a pair of fixing portions 31 extending along the respective back surfaces 2b of the pair of outer wall materials 2 and fixed to the frame 100, a locking portion 33 extending in the thickness direction of one side of the outer wall material 2 and locked in the recess 23 for shiplap, and a connecting portion 32 extending between the one end 31a of the pair of fixing portions 31 and the engaging portion 33 to connect them, and sealing material 5 is provided in the recess 23 for shiplap in the projected corner structure 1.SELECTED DRAWING: Figure 1

Description

本発明は、出隅構造に関する。   The present invention relates to a protruding corner structure.

従来、建物の角では、外壁材の一の面と、他の面とが略直交するように突き合わされるため、隙間が生じやすい。そこで、略直交する外壁材を接続するとともに隙間を塞ぐようなジョイナーを用いた出隅構造が知られている（例えば、特許文献１参照）。   Conventionally, at the corner of a building, one surface of the outer wall material and the other surface are abutted so as to be substantially orthogonal to each other, so that a gap is likely to occur. Therefore, a protruding corner structure using a joiner that connects outer wall materials that are substantially orthogonal to each other and closes the gap is known (for example, see Patent Document 1).

図５に示すように、従来の出隅構造では、突き合わせる二枚の外壁材８ａ、８ｂの一方の外壁材８ａの内面側に溝８１を形成し、この溝にジョイナー９の端部９１を挿入した状態で、他方の外壁材８ｂとジョイナー９を接続し、ジョイナー９を介して外壁材同士８ａ、８ｂを接続している。また、この出隅構造では、板状のジョイナー９に、板面から突出する凸部９２を形成し、凸部９２を一の外壁材８ａと他の外壁材８ｂとの突合せ面の間に配置して、凸部９２の外面側にシーリング材９０を充填している。   As shown in FIG. 5, in the conventional corner structure, a groove 81 is formed on the inner surface side of one of the two outer wall members 8a and 8b to be abutted, and an end portion 91 of the joiner 9 is formed in this groove. In the inserted state, the other outer wall material 8 b and the joiner 9 are connected, and the outer wall materials 8 a and 8 b are connected to each other through the joiner 9. Further, in this protruding corner structure, the plate-shaped joiner 9 is formed with a convex portion 92 that protrudes from the plate surface, and the convex portion 92 is disposed between the abutting surfaces of one outer wall material 8a and the other outer wall material 8b. The sealing material 90 is filled on the outer surface side of the convex portion 92.

特許第５７５６３４７号公報Japanese Patent No. 5756347

一方の外壁材８ａに溝８１を設けて、溝８１にジョイナー９を係合させる場合、最初に溝８１を形成した外壁材８ａを出隅に取付ける必要が生じる。このため、溝８１を形成した一方の外壁材８ａ、それからジョイナー９、その後で溝８１を形成していない他方の外壁材８ｂをジョイナー９に接合する、というように、取り付ける順番が構造上決まってしまい、施工箇所によっては、不自由な場合もあった。また、外壁材８ａに溝８１を形成する加工が必要となり、工程数が増えた。   When the groove 81 is provided in one outer wall member 8a and the joiner 9 is engaged with the groove 81, the outer wall member 8a in which the groove 81 is formed first needs to be attached to the protruding corner. For this reason, the order of mounting is determined such that one outer wall member 8a in which the groove 81 is formed, then the joiner 9, and then the other outer wall member 8b in which the groove 81 is not formed are joined to the joiner 9. In other words, depending on the construction location, it may be inconvenient. Moreover, the process which forms the groove | channel 81 in the outer wall material 8a was needed, and the number of processes increased.

また、図５のような溝８１にジョイナー９の端部９１を挿入する構成では、端部９１は地震等の振動で溝８１から外れやすかった。端部９１が溝８１から外れると、外壁材８ａが地震等の振動で外壁材８ａの面方向（図５の矢印方向参照）にずれようとする。端部９１が溝８１から外れた状態で外壁材８ａがずれると、シーリング材９０に対してせん断方向にかかる力を遮るものがなく、シーリング材９０の破断が起きやすかった。さらに、シーリング材９０が破断された場合に、内部に進入する水を止水することも難しかった。   Further, in the configuration in which the end portion 91 of the joiner 9 is inserted into the groove 81 as shown in FIG. 5, the end portion 91 is easily detached from the groove 81 due to vibration such as an earthquake. When the end portion 91 is disengaged from the groove 81, the outer wall material 8a tends to shift in the surface direction of the outer wall material 8a (see the arrow direction in FIG. 5) due to vibration such as an earthquake. When the outer wall material 8a is displaced in a state where the end portion 91 is disengaged from the groove 81, there is nothing that blocks the force applied to the sealing material 90 in the shearing direction, and the sealing material 90 is easily broken. Further, when the sealing material 90 is broken, it is difficult to stop water entering the inside.

本発明は、シーリング材にかかるせん断力を低減するとともに、施工の容易な出隅構造を提供することを目的とする。   An object of the present invention is to reduce the shearing force applied to a sealing material and to provide an easily-extracted corner structure.

上記目的を達成するため本発明は、一対の外壁材（例えば、後述の外壁材２）の端部同士がジョイナー（例えば、後述のジョイナー３）を介して突合せ接合されて構成される出隅構造（例えば、後述の出隅構造１）であって、前記一対の外壁材の一方は、前記出隅構造を構成する端部における表面側に形成された合いじゃくり用凸部（例えば、後述の合いじゃくり用凸部２４）と裏面側に形成された合いじゃくり用凹部（例えば、後述の合いじゃくり用凹部２３）を有し、前記ジョイナーは、前記一対の外壁材の各裏面に沿って延び、躯体に固定される一対の固定部（例えば、後述の固定部３１）と、前記外壁材の一方の厚み方向に延び、前記合いじゃくり用凹部に係止される係止部（例えば、後述の係止部３３）と、前記一対の固定部の一端と前記係止部との間で延びてこれらを連結する連結部（例えば、後述の連結部３２）と、を有し、前記合いじゃくり用凹部には、シーリング材（例えば、後述のシーリング材５）が設けられている出隅構造を提供する。   In order to achieve the above object, the present invention provides a corner structure in which the ends of a pair of outer wall members (for example, an outer wall member 2 described later) are butt-joined via a joiner (for example, a joiner 3 described later). (For example, a protruding corner structure 1 described later), in which one of the pair of outer wall members is a fitting protrusion (for example, described later) formed on the surface side of the end portion constituting the protruding corner structure. A counterboring convex part 24) and a counterboring concave part formed on the back surface side (for example, a counterboring concave part 23 described later), and the joiner extends along each back surface of the pair of outer wall materials. A pair of fixing parts (for example, a fixing part 31 described later) and a locking part (for example, a locking part (for example, a fixing part 31 to be described later)) that extends in one thickness direction of the outer wall member and is locked to the fitting clearance recess. , A locking portion 33) to be described later, and one of the pair of fixing portions And a connecting portion (for example, a connecting portion 32 described later) that extends between the engaging portion and the locking portion, and a sealing material (for example, a sealing material described later) 5) is provided.

前記一対の固定部は、平面視で略Ｌ字状に配置されるように前記固定部の前記一端側で接するとともに互いが略直交する方向に延びる第１固定部（例えば、後述の第１固定部３１１）及び第２固定部（例えば、後述の第２固定部３１２）により構成され、前記連結部は、前記一端を基端として、前記第１固定部の延びる方向に沿って延出し、前記係止部は、前記連結部の遠位端から、前記第２固定部の延びる方向と略平行に延びることが好ましい。   The pair of fixing portions is a first fixing portion (for example, a first fixing described later) that is in contact with the one end side of the fixing portion and extends in a direction substantially orthogonal to each other so as to be arranged in a substantially L shape in plan view. Part 311) and a second fixing part (for example, a second fixing part 312 described later), and the connecting part extends along the extending direction of the first fixing part with the one end as a base end, The locking portion preferably extends from the distal end of the connecting portion substantially in parallel with the direction in which the second fixing portion extends.

前記連結部の両面には、各外壁材の裏面に沿って延びるように止水材（例えば、後述の止水パッキン４）が設けられることが好ましい。   It is preferable that a water stop material (for example, a water stop packing 4 described later) is provided on both surfaces of the connecting portion so as to extend along the back surface of each outer wall member.

前記ジョイナーは、一枚の板状金属部材を折り曲げ加工して形成されることが好ましい。   The joiner is preferably formed by bending a single plate-like metal member.

前記一対の固定部における他端側が、前記一端側へ向かって外表面側に折り返されて形成される水返し部（例えば、後述の水返し部３４）をさらに有することが好ましい。   It is preferable that the other end side of the pair of fixing portions further has a water return portion (for example, a water return portion 34 described later) formed by being folded back toward the outer surface side toward the one end side.

また、本発明は、外壁材の出隅構造用ジョイナーであって、平面視で略Ｌ字状に配置されるように一端で接するとともに互いが略直交する方向に延びる第１固定部及び第２固定部を有し、躯体に固定される一対の固定部と、前記第２固定部の延びる方向に沿って延び、前記外壁材の出隅構造を構成する端部における裏面側に形成された合いじゃくり用凹部に係止される係止部と、前記固定部及び前記係止部を連結し、前記一端から前記第１固定部の延びる方向に沿って前記係止部に至るまで延出する連結部と、を有するジョイナーを提供する。   In addition, the present invention is a joiner for the outer corner structure of the outer wall material, and is in contact with one end so as to be arranged in a substantially L shape in a plan view and extends in a direction substantially orthogonal to each other. A pair of fixing portions having a fixing portion and fixed to the housing, and a mating portion formed along the extending direction of the second fixing portion and formed on the back side of the end portion constituting the protruding corner structure of the outer wall material The locking portion locked to the pricking recess, the fixing portion and the locking portion are connected, and extend from the one end to the locking portion along the direction in which the first fixing portion extends. And a joiner having a connecting portion.

本発明によれば、シーリング材にかかるせん断力を低減するとともに、施工の容易な出隅構造を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, while reducing the shear force concerning a sealing material, it can provide the protruding corner structure where construction is easy.

本実施形態の出隅構造を示す斜視図である。It is a perspective view which shows the protruding corner structure of this embodiment. 本実施形態の出隅構造を示す模式的な平面図である。It is a typical top view which shows the protruding corner structure of this embodiment. 本実施形態の外壁材を示す図であり、（ａ）図は正面図、（ｂ）図は側面図、（ｃ）図は部分拡大平面図である。It is a figure which shows the outer wall material of this embodiment, (a) A figure is a front view, (b) A figure is a side view, (c) A figure is a partial enlarged plan view. 本実施形態のジョイナーの平面図である。It is a top view of the joiner of this embodiment. 従来の出隅構造を示す模式的な平面図である。It is a typical top view which shows the conventional protruding corner structure.

以下、本発明の実施形態について、図面を参照しながら詳細に説明する。
図１は、本実施形態の出隅構造１を示す斜視図である。図２は、出隅構造１を示す模式的な平面図である。図１及び２に示すように、出隅構造１は、建物の角等の、一対の外壁材２の端部同士が互いに突合わせ接合される箇所において、外壁材２及び建物の躯体１００を接合する構造体である。出隅構造１は、外壁材２と、ジョイナー３と、止水材としての止水パッキン４と、シーリング材５と、スペーサー６と、を有する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing a protruding corner structure 1 of the present embodiment. FIG. 2 is a schematic plan view showing the protruding corner structure 1. As shown in FIGS. 1 and 2, the projecting corner structure 1 joins the outer wall material 2 and the building frame 100 at a location where the ends of the pair of outer wall materials 2 are abutted and joined to each other, such as a corner of a building. It is a structure. The protruding corner structure 1 includes an outer wall material 2, a joiner 3, a water stop packing 4 as a water stop material, a sealing material 5, and a spacer 6.

図３（ａ）は本実施形態の外壁材２の正面図、図３（ｂ）は外壁材２の側面図、図３（ｃ）は外壁材２の部分拡大平面図である。
外壁材２は、図３（ａ）に示すように、長尺状のいわゆるサイディングパネルであり、正面視略長方形で、長手方向が略水平方向に延びるように設置される。外壁材２は、嵌合凸部２１及び嵌合凹部２２と、合いじゃくり用凹部２３と、合いじゃくり用凸部２４と、を有する。 3A is a front view of the outer wall material 2 of the present embodiment, FIG. 3B is a side view of the outer wall material 2, and FIG. 3C is a partially enlarged plan view of the outer wall material 2. FIG.
As shown in FIG. 3A, the outer wall material 2 is a so-called siding panel having a long shape, and is installed so that the front surface is substantially rectangular and the longitudinal direction extends in a substantially horizontal direction. The outer wall material 2 includes a fitting convex portion 21 and a fitting concave portion 22, a counterboring concave portion 23, and a counterboring convex portion 24.

嵌合凸部２１及び嵌合凹部２２は、図３（ｂ）に示すように、複数の外壁材２が組み合わされて施工される際、外壁材２を上下に連結できるように、外壁材２が施工された状態の上端側及び下端側に形成される。嵌合凸部２１及び嵌合凹部２２は、外壁材２の表面２ａ側と、裏面２ｂ側で高さが異なる段差により形成される。
嵌合凸部２１は、外壁材２の短手方向の一方の端部（図３（ｂ）における上端）における裏面２ｂ側に形成され、外壁材２の面方向に沿って突出する。
嵌合凹部２２は、外壁材２の短手方向の他方の端部（図３（ｂ）における下端）における裏面２ｂ側に形成され、外壁材２の面方向に沿って窪むように切り欠かれて形成される。 As shown in FIG. 3B, the fitting convex portion 21 and the fitting concave portion 22 are arranged so that the outer wall material 2 can be connected vertically when the plurality of outer wall materials 2 are combined. Is formed on the upper end side and the lower end side in a state where the is constructed. The fitting convex portion 21 and the fitting concave portion 22 are formed by steps having different heights on the front surface 2a side and the back surface 2b side of the outer wall material 2.
The fitting convex portion 21 is formed on the back surface 2 b side at one end portion (upper end in FIG. 3B) of the outer wall material 2 in the short direction, and protrudes along the surface direction of the outer wall material 2.
The fitting recess 22 is formed on the back surface 2b side at the other end in the short direction of the outer wall material 2 (lower end in FIG. 3B), and is cut out so as to be recessed along the surface direction of the outer wall material 2. It is formed.

合いじゃくり用凹部２３は、出隅構造１を構成する外壁材２の長手方向の一方の端部における裏面２ｂ側に形成される。図３（ｃ）に示すように、合いじゃくり用凹部２３は、外壁材２の平面視で、表面２ａ側よりも裏面２ｂ側の方が長手方向に沿う長さが短くなるように内側に切り欠かれて形成される。合いじゃくり用凹部２３は、平面視で略四角形の切り欠かれた空間である。合いじゃくり用凹部２３は、外壁材２の長手方向における端部の切り欠かれた端面２３ａと、外壁材２の裏面２ｂ側が切り欠かれたために露出している外壁材２の側面２３ｂにより形成される。   The counterboring recess 23 is formed on the back surface 2 b side at one end in the longitudinal direction of the outer wall material 2 constituting the protruding corner structure 1. As shown in FIG. 3 (c), the counterboring recess 23 is located on the inner side so that the length along the longitudinal direction is shorter on the back surface 2 b side than on the front surface 2 a side in a plan view of the outer wall material 2. Notched and formed. The counterboring recess 23 is a substantially rectangular space cut out in plan view. The counterboring recess 23 is formed by an end surface 23a that is cut out at the end in the longitudinal direction of the outer wall material 2 and a side surface 23b of the outer wall material 2 that is exposed because the back surface 2b side of the outer wall material 2 is cut away. Is done.

合いじゃくり用凸部２４は、出隅構造１を構成する外壁材２の長手方向における一方の端部における表面２ａ側に形成される。合いじゃくり用凸部２４は、図３（ｃ）及び図２に示すように、外壁材２の表面２ａ側では長手方向の端部が切り欠かれていないため、合いじゃくり用凹部に対して相対的に突出する突出部である。   The counterboring convex portion 24 is formed on the surface 2a side at one end portion in the longitudinal direction of the outer wall material 2 constituting the protruding corner structure 1. As shown in FIGS. 3 (c) and 2, since the end portion in the longitudinal direction is not cut off on the surface 2 a side of the outer wall material 2, the counterboring convex portion 24 is in contrast to the counterboring concave portion. It is the protrusion part which protrudes relatively.

なお、本実施形態において、図１及び図２で互いに直交するように取り付けられている二枚の外壁材２は同じものであるが、説明の便宜のため、図１及び２において合いじゃくり用凹部２３が形成されている端部側が示されている方を外壁材２０１、合いじゃくり用凹部２３が形成されていない端部側が示されている側を外壁材２０２と言う。   In the present embodiment, the two outer wall materials 2 attached so as to be orthogonal to each other in FIGS. 1 and 2 are the same, but for convenience of explanation, in FIG. 1 and FIG. The side on which the end side where the recess 23 is formed is referred to as the outer wall material 201, and the side on which the end side where the counterbore recess 23 is not formed is referred to as the outer wall material 202.

図４は、ジョイナー３の平面図である。なお、図４には、説明のため、止水パッキン４も一緒に示されている。ジョイナー３は、一枚の板状金属部材を折り曲げ加工して形成された部材であり、一対の外壁材２同士を接続する。ジョイナー３は、一対の固定部３１と、連結部３２と、係止部３３と、水返し部３４と、を有する。   FIG. 4 is a plan view of the joiner 3. In addition, in FIG. 4, the water stop packing 4 is also shown for description. The joiner 3 is a member formed by bending a single plate-like metal member, and connects the pair of outer wall materials 2 to each other. The joiner 3 includes a pair of fixing portions 31, a connecting portion 32, a locking portion 33, and a water return portion 34.

一対の固定部３１は、外壁材２の各裏面２ｂに沿って延び、躯体１００の一の面１０１と、該一の面１０１に直交する他の面１０２とに固定される。一対の固定部３１は、第１固定部３１１と、第２固定部３１２により構成される。
第１固定部３１１は、図１に示すように、施工された状態では、出隅構造１の上下方向に通しで延びる略長方形の板状の部材である。第１固定部３１１は、躯体１００の一の面１０１に対向して配置される。
第２固定部３１２は、図１に示すように、施工された状態では、出隅構造１の上下方向に通しで延びる略長方形の板状の部材である。第２固定部３１２は、躯体１００の他の面１０２に対向して配置される。
第１固定部３１１及び第２固定部３１２は、平面視で略Ｌ字状に配置されるように固定部３１の一端３１ａ側で接し、互いが略直交する方向に延出する。 The pair of fixing portions 31 extend along the respective back surfaces 2 b of the outer wall material 2, and are fixed to one surface 101 of the casing 100 and another surface 102 orthogonal to the one surface 101. The pair of fixing portions 31 includes a first fixing portion 311 and a second fixing portion 312.
As shown in FIG. 1, the first fixing portion 311 is a substantially rectangular plate-like member that extends through the protruding corner structure 1 in the up-down direction in the installed state. The first fixing portion 311 is disposed to face one surface 101 of the housing 100.
As shown in FIG. 1, the second fixing portion 312 is a substantially rectangular plate-like member that extends through the protruding corner structure 1 in the up-down direction in the installed state. The second fixing portion 312 is disposed to face the other surface 102 of the housing 100.
The first fixing portion 311 and the second fixing portion 312 are in contact with one end 31a side of the fixing portion 31 so as to be arranged in a substantially L shape in plan view, and extend in a direction substantially perpendicular to each other.

連結部３２は、一対の固定部３１の一端３１ａから以下に説明する係止部３３に至るまで、固定部３１と係止部３３との間で延び、固定部３１及び係止部３３を連結する部分である。連結部３２は、第１連結部３２１及び第２連結部３２２を有する。
第１連結部３２１は、第１固定部３１１から連続し、固定部３１の一端３１ａを基端として、第１固定部３１１の延びる方向に沿って係止部３３に至るまで延出する。
第２連結部３２２は、第２固定部３１２から連続し、固定部３１の一端３１ａを基端として、第１固定部３１１の延びる方向に沿って係止部３３に至るまで延出する。第２連結部３２２は、第１連結部３２１と重ねられて同一方向に延びる。 The connecting portion 32 extends between the fixing portion 31 and the locking portion 33 from one end 31 a of the pair of fixing portions 31 to the locking portion 33 described below, and connects the fixing portion 31 and the locking portion 33. It is a part to do. The connection part 32 includes a first connection part 321 and a second connection part 322.
The first connecting portion 321 is continuous from the first fixing portion 311 and extends from the one end 31a of the fixing portion 31 to the locking portion 33 along the extending direction of the first fixing portion 311 with the base end as the one end 31a.
The second connecting part 322 continues from the second fixing part 312 and extends from the one end 31a of the fixing part 31 to the locking part 33 along the extending direction of the first fixing part 311 with the base 31 as the base end. The second connecting part 322 is overlapped with the first connecting part 321 and extends in the same direction.

係止部３３は、外壁材２０１の厚み方向に延びる。詳細には、連結部３２の固定部３１と連続していない遠位端側から、第１固定部３１１に直交するとともに、第２固定部３１２の延びる方向と略平行に延びる。図２に示すように、係止部３３は、合いじゃくり用凹部２３の端面２３ａに係止する。   The locking portion 33 extends in the thickness direction of the outer wall material 201. Specifically, from the distal end side that is not continuous with the fixing portion 31 of the connecting portion 32, the connecting portion 32 extends orthogonally to the first fixing portion 311 and substantially parallel to the extending direction of the second fixing portion 312. As shown in FIG. 2, the locking portion 33 is locked to the end surface 23 a of the counterboring recess 23.

水返し部３４は、固定部３１の他端３１ｂ側が、一端３１ａ側へ向かって外表面側に折り返されて形成される。水返し部３４は、折り返された面が外壁材２に当接するように配置される。第１固定部３１１の水返し部３４及び第２固定部３１２の水返し部３４は、同一形状で、折り返した部分の高さが同じである。   The water return portion 34 is formed by folding the other end 31b side of the fixing portion 31 toward the outer surface side toward the one end 31a side. The water return portion 34 is disposed such that the folded surface comes into contact with the outer wall material 2. The water return portion 34 of the first fixed portion 311 and the water return portion 34 of the second fixed portion 312 have the same shape, and the heights of the folded portions are the same.

止水パッキン４は、施工された状態では、出隅部の上下方向に通しで延びる細長い直方体の弾性部材である。止水パッキン４は、図４に示すように、一対の外壁材２のそれぞれの裏面に沿って延びるように設けられる。より具体的には、止水パッキン４は、第１連結部３２１の外面側及び第２連結部３２２の外面側に配置される。止水パッキン４は、断面視で長辺に沿う面が、第１連結部３２１の外面側に当接する。また、止水パッキン４は、断面視で短辺に沿う面が第２連結部３２２の外面側に当接する。   The water-stopping packing 4 is an elongated rectangular parallelepiped elastic member that extends in the up-down direction of the protruding corner when it is installed. As shown in FIG. 4, the water-stop packing 4 is provided so as to extend along the respective back surfaces of the pair of outer wall materials 2. More specifically, the water blocking packing 4 is disposed on the outer surface side of the first connecting portion 321 and the outer surface side of the second connecting portion 322. The surface of the water blocking packing 4 along the long side in a sectional view abuts on the outer surface side of the first connecting portion 321. Further, the water-stopping packing 4 is in contact with the outer surface side of the second connecting portion 322 at the surface along the short side in a sectional view.

止水パッキン４は、ジョイナー３に予め貼付されている。すなわち、止水パッキン４はジョイナー３の連結部３２における第１連結部３２１の外表面側と係止部３３で形成される角に配置されている。また、止水パッキン４は第２連結部３２２の外表面と第２固定部３１２で形成される角に配置されている。なお、ジョイナー３の第１固定部３１１及び第２固定部３１２それぞれに形成された水返し部３４の折り返し高さが同じであるため、第１連結部３２１の外表面側に取り付ける止水パッキン４と第２連結部３２２の外表面側に取り付ける止水パッキン４とのサイズを共通化することができ、製造コストが低減される。   The water stop packing 4 is affixed to the joiner 3 in advance. That is, the water stop packing 4 is arranged at the corner formed by the outer surface side of the first connecting portion 321 and the engaging portion 33 in the connecting portion 32 of the joiner 3. Further, the water stop packing 4 is disposed at a corner formed by the outer surface of the second connecting portion 322 and the second fixing portion 312. In addition, since the folding | returning height of the water return part 34 formed in each of the 1st fixing | fixed part 311 and the 2nd fixing | fixed part 312 of the joiner 3 is the same, the water stop packing 4 attached to the outer surface side of the 1st connection part 321. And the water stop packing 4 attached to the outer surface side of the second connecting portion 322 can be made common, and the manufacturing cost is reduced.

シーリング材５は、図２に戻って、合いじゃくり用凹部２３に設けられている。より詳細には、シーリング材５は、一方の外壁材２０１の合いじゃくり用凹部２３の端面２３ａ及び側面２３ｂと、この外壁材２０１に接続される他方の外壁材２０２の端面との間に形成された断面視四角形の空間に充填される。   Returning to FIG. 2, the sealing material 5 is provided in the counterboring recess 23. More specifically, the sealing material 5 is formed between the end surface 23 a and the side surface 23 b of the counterboring recess 23 of one outer wall member 201 and the end surface of the other outer wall member 202 connected to the outer wall member 201. The filled rectangular space is filled.

スペーサー６は、図２に示すように、第１固定部３１１と躯体１００の一の面１０１との間、及び、第２固定部３１２と躯体１００の他の面１０２との間、にそれぞれ配置され、第１固定部３１１及び第２固定部３１２を躯体１００に固定するねじによって固定される。   As shown in FIG. 2, the spacer 6 is disposed between the first fixing portion 311 and one surface 101 of the housing 100 and between the second fixing portion 312 and the other surface 102 of the housing 100. Then, the first fixing portion 311 and the second fixing portion 312 are fixed by screws that fix the housing 100.

次に、出隅構造１の施工方法について説明する。
予め止水パッキン４が貼付されているジョイナー３を、梁等の躯体１００における一の面１０１及び他の面１０２に、スペーサー６を介してねじで固定する。 Next, the construction method of the corner structure 1 will be described.
The joiner 3 to which the water-stop packing 4 is previously attached is fixed to one surface 101 and the other surface 102 of the frame 100 such as a beam with a spacer 6 with screws.

次に、外壁材２をジョイナー３の第１固定部３１１を又は第２固定部３１２に当接させ、取り付け金具７で固定する。このとき、先に外壁材２０１を第１固定部３１１に固定してもよく、先に外壁材２０２を第２固定部３１２に固定してもよく、どちらが先でもよい。   Next, the outer wall material 2 is brought into contact with the first fixing portion 311 or the second fixing portion 312 of the joiner 3 and fixed with the mounting bracket 7. At this time, the outer wall material 201 may be fixed to the first fixing portion 311 first, or the outer wall material 202 may be fixed to the second fixing portion 312 first, whichever is first.

図２に示すように、外壁材２０２を躯体１００に取り付ける場合、ジョイナー３の第２固定部３１２に外壁材２０２の端部を当接させて、取り付け金具７で躯体１００に固定する。外壁材２０１を取り付ける場合、ジョイナー３の第１固定部３１１に外壁材２の端部を当接させるとともに、合いじゃくり用凹部２３の端面２３ａが係止部３３に係止するように位置を決め、取り付け金具７で躯体１００に固定する。外壁材２をジョイナー３に固定すると、止水パッキン４は弾性部材で形成されているため、圧縮され、外壁材２とジョイナー３の間の隙間を埋める。   As shown in FIG. 2, when the outer wall material 202 is attached to the housing 100, the end portion of the outer wall material 202 is brought into contact with the second fixing portion 312 of the joiner 3 and is fixed to the housing 100 with the mounting bracket 7. When attaching the outer wall material 201, the end portion of the outer wall material 2 is brought into contact with the first fixing portion 311 of the joiner 3, and the position is set so that the end surface 23 a of the counterboring recess 23 is locked to the locking portion 33. And fix to the housing 100 with the mounting bracket 7. When the outer wall material 2 is fixed to the joiner 3, the water-stop packing 4 is formed of an elastic member, so that it is compressed and fills a gap between the outer wall material 2 and the joiner 3.

このように一対の外壁材２をジョイナー３を介して突き合わせて接合すると、合いじゃくり用凹部２３と、合いじゃくり用凹部２３が形成されていない外壁材２０２の長手方向の端面との間に空間が形成される。この空間にシーリング材５を充填する。すると、図２に示すように、外壁材２０１と、外壁材２０２及びシーリング材５とが合いじゃくりで接合されたような構成となる。   Thus, when the pair of outer wall materials 2 are abutted and joined via the joiner 3, the mating recess 23 and the longitudinal end surface of the outer wall member 202 where the mating recess 23 is not formed are provided. A space is formed. This space is filled with the sealing material 5. Then, as shown in FIG. 2, the outer wall material 201, the outer wall material 202, and the sealing material 5 are joined together.

本実施形態によれば、以下の効果が奏される。
本実施形態によれば、一対の外壁材２の端部同士がジョイナー３を介して突合せ接合されて構成される出隅構造１において、一対の外壁材２の一方を、出隅構造１を構成する端部における表面２ａ側に形成された合いじゃくり用凸部２４と裏面側に形成された合いじゃくり用凹部２３を含んで構成した。また、ジョイナー３を、一対の外壁材２の各裏面に沿って延び、躯体１００に固定される一対の固定部３１と、外壁材２の一方の厚み方向に延び、合いじゃくり用凹部２３に係止される係止部３３と、一対の固定部３１の一端３１ａと係止部３３との間で延びてこれらを連結する連結部３２と、を含んで構成した。また、合いじゃくり用凹部２３に、シーリング材５を充填した。
ジョイナー３の一対の固定部３１が、一対の外壁材２の各裏面に沿って延び、躯体１００に固定されるので、出隅構造１を構成する外壁材２の一方側からでも、他方側からでも取り付けられる。このため、施工場所の他の要件に応じて変更することができ、施工が容易である。 According to this embodiment, the following effects are produced.
According to the present embodiment, in the protruding corner structure 1 configured such that the ends of the pair of outer wall materials 2 are butt-joined via the joiner 3, one of the pair of outer wall materials 2 is configured as the protruding corner structure 1. In the end portion, the pegging convex portion 24 formed on the front surface 2a side and the pegging concave portion 23 formed on the back surface side are included. Further, the joiner 3 extends along the respective back surfaces of the pair of outer wall members 2, extends in one thickness direction of the outer wall member 2 and a pair of fixing portions 31 fixed to the housing 100, and forms a counterbore recess 23. The locking part 33 to be locked and the connecting part 32 extending between the one end 31a of the pair of fixing parts 31 and the locking part 33 and connecting them are configured. In addition, the sealing material 5 was filled in the mating recess 23.
Since the pair of fixing portions 31 of the joiner 3 extend along the respective back surfaces of the pair of outer wall members 2 and are fixed to the housing 100, the outer wall member 2 constituting the protruding corner structure 1 can be viewed from one side or the other side. But it can be attached. For this reason, it can change according to the other requirements of a construction place, and construction is easy.

また、例えば、図５のような従来の構成では、ジョイナー９の端部９１は、地震等で溝８１から外れやすい。そして、ジョイナー９の端部９１が溝８１から外れてしまうと、図５の矢印方向に沿って外壁材８ａが動き、外壁材８ａのずれが直接シーリング材９０にかかる。このため、シーリング材９０は破断しやすい。
これに対して、本実施形態では、一対の外壁材２の一方の端部に合いじゃくり用凹部２３が形成されており、外壁材２０２の合いじゃくり用凹部２３の端面２３ａに係止部３３が係止されている。このため、地震等で外壁材２が図２中の矢印Ｙ方向にずれた場合、外壁材２のせん断力は、ジョイナー３の係止部３３によって受け止められて小さくなる。
さらに、固定部３１が一対の外壁材２の各裏面２ｂに沿って延び、躯体１００に固定されているので、矢印Ｙ方向に力がかかった場合、第２固定部３１２が矢印Ｙ方向に動き、第２固定部３１２に接している外壁材２０２をも矢印Ｙ方向に押す。これらの動きにより、シーリング材５にかかるせん断力が小さくなるので、シーリング材５の破断を防止しやすくなる。 Further, for example, in the conventional configuration as shown in FIG. 5, the end portion 91 of the joiner 9 is easily detached from the groove 81 due to an earthquake or the like. When the end portion 91 of the joiner 9 is detached from the groove 81, the outer wall member 8a moves along the direction of the arrow in FIG. 5, and the displacement of the outer wall member 8a is directly applied to the sealing member 90. For this reason, the sealing material 90 is easily broken.
On the other hand, in the present embodiment, a mating recess 23 is formed at one end of the pair of outer wall members 2, and a locking portion is provided on the end surface 23 a of the mating recess 23 of the outer wall 202. 33 is locked. For this reason, when the outer wall material 2 is displaced in the direction of arrow Y in FIG. 2 due to an earthquake or the like, the shearing force of the outer wall material 2 is received by the locking portion 33 of the joiner 3 and becomes smaller.
Further, since the fixing portion 31 extends along the respective back surfaces 2b of the pair of outer wall members 2 and is fixed to the casing 100, when a force is applied in the arrow Y direction, the second fixing portion 312 moves in the arrow Y direction. The outer wall material 202 in contact with the second fixing portion 312 is also pushed in the arrow Y direction. Due to these movements, the shearing force applied to the sealing material 5 is reduced, so that it becomes easy to prevent the sealing material 5 from being broken.

また、本実施形態によれば、一対の固定部３１を、平面視で略Ｌ字状に配置されるように固定部３１の一端３１ａ側で接するとともに互いが略直交する方向に延びる第１固定部３１１及び第２固定部３１２により構成した。また、連結部３２を、一端３１ａを基端として、第１固定部３１１の延びる方向に沿って延出させ、係止部３３を、連結部３２の遠位端から、第２固定部３１２の延びる方向と略平行に延びるように構成した。
固定部３１が平面視で略Ｌ字状に形成されていて、連結部が第１固定部３１１の延びる方向に沿って延び、係止部３３が第２固定部３１２の延びる方向に沿って延びている。このような構成によれば、上記述べたような矢印Ｙ方向に力が加えられた場合だけでなく、地震等で外壁材や矢印Ｘ方向から押された場合でも、連結部３２が外壁材２を受け止めてせん断力を小さくし、躯体１００のＸ方向の動きを受けて第１固定部３１１が外壁材２を押すことでさらにせん断力を小さくできる。したがって、矢印Ｘ、Ｙ方向いずれの方向から力を受けても同様にせん断力を小さくし、シーリング材５を破断しにくくできる。 In addition, according to the present embodiment, the pair of fixing portions 31 are in contact with each other on the one end 31a side of the fixing portion 31 so as to be arranged in a substantially L shape in plan view, and extend in a direction substantially orthogonal to each other. The unit 311 and the second fixing unit 312 are configured. Further, the connecting portion 32 is extended along the extending direction of the first fixing portion 311 with the one end 31 a as a base end, and the locking portion 33 is extended from the distal end of the connecting portion 32 to the second fixing portion 312. It was comprised so that it might extend substantially in parallel with the extending direction.
The fixing portion 31 is formed in a substantially L shape in plan view, the connecting portion extends along the direction in which the first fixing portion 311 extends, and the locking portion 33 extends along the direction in which the second fixing portion 312 extends. ing. According to such a configuration, not only when a force is applied in the arrow Y direction as described above, but also when the outer wall material or the arrow X direction is pressed due to an earthquake or the like, the connecting portion 32 is connected to the outer wall material 2. The shearing force can be reduced by receiving the force and the first fixing portion 311 can push the outer wall material 2 in response to the movement of the casing 100 in the X direction. Therefore, even if a force is applied from either direction of the arrows X and Y, the shearing force is similarly reduced, and the sealing material 5 can be hardly broken.

また、本実施形態によれば、連結部３２の両面に、各外壁材２の裏面２ｂに沿って延びるように止水パッキン４を設けた。これにより、止水パッキン４は、シーリング材５よりも内側（躯体１００側）に位置することとなる。このため、外壁材２０１がＹ方向にずれた場合は、連結部３２と係止部３３の外側との間に位置している止水パッキン４が隙間を塞いで止水できる。また、外壁材２０２がＸ方向にずれた場合は、連結部３２と第２固定部３１２の外側との間に位置している止水パッキン４が隙間を塞いで止水できる。さらにずれが生じていない場合、外側から内側への接合部には、シーリング材５、ジョイナー３の係止部３３、止水パッキン４の順で外壁材２の内側への水の侵入を防止しているため、水が浸入しづらい。シーリング材５、ジョイナー３、止水パッキン４が三位一体となることで、シーリング材５へのせん断力の負荷や外側からの風水の侵入を低減できるので、シーリング材５の外観性を維持しやすくなる。   Moreover, according to this embodiment, the water stop packing 4 was provided on both surfaces of the connection part 32 so that it might extend along the back surface 2b of each outer wall material 2. As shown in FIG. Thereby, the water stop packing 4 will be located inside the sealing material 5 (the housing 100 side). For this reason, when the outer wall material 201 is displaced in the Y direction, the water stop packing 4 located between the connecting portion 32 and the outside of the locking portion 33 can close the gap and stop the water. Further, when the outer wall member 202 is displaced in the X direction, the water stop packing 4 positioned between the connecting portion 32 and the outside of the second fixing portion 312 can close the gap and stop the water. Further, when there is no deviation, water is prevented from entering the outside of the outer wall material 2 in the order of the sealing material 5, the locking portion 33 of the joiner 3, and the water blocking packing 4 in the joining portion from the outside to the inside. Therefore, it is difficult for water to enter. Since the sealing material 5, the joiner 3, and the water-stop packing 4 are in one unit, the load of the shearing force on the sealing material 5 and the intrusion of feng shui from the outside can be reduced, so that the appearance of the sealing material 5 can be easily maintained. .

また、本実施形態によれば、ジョイナー３を、一枚の板状金属部材を折り曲げ加工して形成した。これにより、ジョイナー３の製造がしやすくなる。   Further, according to the present embodiment, the joiner 3 is formed by bending a single plate-like metal member. Thereby, manufacture of the joiner 3 becomes easy.

また、本実施形態によれば、一対の固定部３１における他端３１ｂ側が、一端３１ａ側へ向かって外表面側に折り返されて形成される水返し部３４をさらに含んで構成した。これにより、ジョイナー３自体が止水性能を有するので、外部からの水の侵入をさらに防止することができる。   Moreover, according to this embodiment, the other end 31b side in a pair of fixing | fixed part 31 further comprised the water return part 34 formed by folding | folding and forming on the outer surface side toward the one end 31a side. Thereby, since the joiner 3 itself has a water stop performance, it is possible to further prevent water from entering from the outside.

また、本実施形態によれば、外壁材２の出隅構造用ジョイナー３を、平面視で略Ｌ字状に配置されるように一端３１ａで接するとともに互いが略直交する方向に延びる第１固定部３１１及び第２固定部３１２を有し、躯体１００に固定される一対の固定部３１と、第２固定部３１２の延びる方向に沿って延び、外壁材２の出隅構造１を構成する端部における裏面２ｂ側に形成された合いじゃくり用凹部２３に係止される係止部３３と、固定部３１及び係止部３３を連結し、一端３１ａから第１固定部３１１の延びる方向に沿って係止部３３に至るまで延出する連結部３２と、を含んで構成した。
本実施形態によれば、ジョイナー３の互いが略直交する方向に延びる第１固定部３１１及び第２固定部３１２のそれぞれが、躯体１００に固定されるので、出隅構造１を構成する外壁材２の一方側からでも、他方側からでも取り付けられる。このため、施工場所の他の要件に応じて変更することができ、施工が容易である。 In addition, according to the present embodiment, the first fixed portion extending in the direction in which the join corner 3 for the outer wall material 2 of the outer wall member 2 is in contact with the one end 31a so as to be arranged in a substantially L shape in a plan view and is substantially orthogonal to each other. A pair of fixed portions 31 fixed to the housing 100 and extending along the direction in which the second fixed portion 312 extends, and constituting the corner structure 1 of the outer wall material 2 In the direction in which the first fixing portion 311 extends from the one end 31 a, the locking portion 33 that is locked to the pegging recess 23 formed on the back surface 2 b side of the portion, the fixing portion 31, and the locking portion 33 are connected. And a connecting portion 32 extending to the locking portion 33.
According to the present embodiment, each of the first fixing portion 311 and the second fixing portion 312 that extend in a direction in which the joiners 3 are substantially orthogonal to each other is fixed to the housing 100, so that the outer wall material that forms the corner structure 1 It can be attached from one side of 2 or from the other side. For this reason, it can change according to the other requirements of a construction place, and construction is easy.

また、ジョイナー３の係止部３３が、外壁材２の合いじゃくり用凹部２３に係止し、固定部３１の一端３１ａから第１固定部３１１の延びる方向に沿って係止部３３に至るまで連結部３２が延出している。係止部３３が合いじゃくり用凹部２３に係止しており、ジョイナー３を介して一対の外壁材２が合いじゃくりで接合されているので、地震等で外壁材２が振動して動いても、ジョイナー３が外れにくい。また、合いじゃくり用凹部２３にシーリング材５等を設けた場合は、ジョイナー３の係止部３３及び連結部３２によってシーリング材５にかかるせん断方向の力が弱まるので、シーリング材５が破断しにくくなる。   Further, the engaging portion 33 of the joiner 3 is engaged with the counterbore recess 23 of the outer wall material 2, and reaches the engaging portion 33 from the one end 31 a of the fixing portion 31 along the extending direction of the first fixing portion 311. The connecting portion 32 extends to the end. Since the locking portion 33 is locked to the counterboring recess 23 and the pair of outer wall members 2 are joined together via the joiner 3, the outer wall member 2 vibrates and moves due to an earthquake or the like. However, the Joiner 3 is difficult to come off. Further, when the sealing material 5 or the like is provided in the counterbore recess 23, the shearing force applied to the sealing material 5 is weakened by the engaging portion 33 and the connecting portion 32 of the joiner 3, so that the sealing material 5 is broken. It becomes difficult.

なお、本発明は上記実施形態に限定されるものではなく、本発明の目的を達成できる範囲での変形、改良等は本発明に含まれる。
例えば、上記実施形態では、ジョイナー３は一枚の金属板状部材を折り曲げ加工して形成したものであるが、複数の金属板状部材を接合して形成してもよい。 It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.
For example, in the above embodiment, the joiner 3 is formed by bending a single metal plate member, but may be formed by joining a plurality of metal plate members.

また、上記実施形態では、予め止水パッキン４が貼付されたジョイナー３を躯体１００に取り付けているが、これに限られない。ジョイナー３を躯体１００に取り付けた後で、ジョイナー３に止水パッキン４を取り付けてもよい。   Moreover, in the said embodiment, although the joiner 3 to which the water stop packing 4 was previously stuck is attached to the housing 100, it is not restricted to this. After attaching the joiner 3 to the housing 100, the water stop packing 4 may be attached to the joiner 3.

１ 出隅構造
２ 外壁材
２ａ 表面
２ｂ 裏面
３ ジョイナー
４ 止水パッキン
５ シーリング材
２３ 合いじゃくり用凹部
２４ 合いじゃくり用凸部
３１ 固定部
３２ 連結部
３３ 係止部
３４ 水返し部
１００ 躯体
３１１ 第１固定部
３１２ 第２固定部 DESCRIPTION OF SYMBOLS 1 Outward corner structure 2 Outer wall material 2a Front surface 2b Back surface 3 Joiner 4 Water-proof packing 5 Sealing material 23 Concave pegging recessed part 24 Fitting pegging part 31 Fixed part 32 Connection part 33 Locking part 34 Water return part 100 Housing 311 First fixing portion 312 Second fixing portion

Claims (6)

一対の外壁材の端部同士がジョイナーを介して突合せ接合されて構成される出隅構造であって、
前記一対の外壁材の一方は、前記出隅構造を構成する端部における表面側に形成された合いじゃくり用凸部と裏面側に形成された合いじゃくり用凹部を有し、
前記ジョイナーは、
前記一対の外壁材の各裏面に沿って延び、躯体に固定される一対の固定部と、
前記外壁材の一方の厚み方向に延び、前記合いじゃくり用凹部に係止される係止部と、
前記一対の固定部の一端と前記係止部との間で延びてこれらを連結する連結部と、を有し、
前記合いじゃくり用凹部には、シーリング材が設けられている出隅構造。 It is a protruding corner structure configured by joining the ends of a pair of outer wall materials through a joiner,
One of the pair of outer wall materials has a counterboring convex portion formed on the front surface side and a counterboring concave portion formed on the back surface side at the end portion constituting the protruding corner structure,
The joiner is
A pair of fixing portions extending along the back surfaces of the pair of outer wall members, and fixed to the housing;
A locking portion that extends in one thickness direction of the outer wall material and is locked to the recessing recess,
A connecting portion that extends between one end of the pair of fixing portions and the locking portion and connects them,
A projecting corner structure in which a sealing material is provided in the pegging recess. 前記一対の固定部は、平面視で略Ｌ字状に配置されるように前記固定部の前記一端側で接するとともに互いが略直交する方向に延びる第１固定部及び第２固定部により構成され、
前記連結部は、前記一端を基端として、前記第１固定部の延びる方向に沿って延出し、
前記係止部は、前記連結部の遠位端から、前記第２固定部の延びる方向と略平行に延びる、請求項１に記載の出隅構造。 The pair of fixing portions are configured by a first fixing portion and a second fixing portion that are in contact with each other on the one end side and extend in a direction substantially orthogonal to each other so as to be arranged in a substantially L shape in plan view. ,
The connecting portion extends from the one end as a base end along a direction in which the first fixing portion extends,
The protruding corner structure according to claim 1, wherein the locking portion extends from a distal end of the connecting portion substantially in parallel with a direction in which the second fixing portion extends. 前記連結部の両面には、各外壁材の裏面に沿って延びるように止水材が設けられる請求項１又は２に記載の出隅構造。   The protruding corner structure according to claim 1 or 2, wherein a water stop material is provided on both surfaces of the connecting portion so as to extend along the back surface of each outer wall material. 前記ジョイナーは、一枚の板状金属部材を折り曲げ加工して形成される請求項１〜３のいずれか１項に記載の出隅構造。   The corner structure according to any one of claims 1 to 3, wherein the joiner is formed by bending a single plate-like metal member. 前記一対の固定部における他端側が、前記一端側へ向かって外表面側に折り返されて形成される水返し部をさらに有する、請求項１〜４のいずれか１項に記載の出隅構造。   The protruding corner structure according to any one of claims 1 to 4, further comprising a water return portion formed by folding the other end side of the pair of fixed portions toward the outer surface side toward the one end side. 外壁材の出隅構造用ジョイナーであって、
平面視で略Ｌ字状に配置されるように一端で接するとともに互いが略直交する方向に延びる第１固定部及び第２固定部を有し、躯体に固定される一対の固定部と、
前記第２固定部の延びる方向に沿って延び、前記外壁材の出隅構造を構成する端部における裏面側に形成された合いじゃくり用凹部に係止される係止部と
前記固定部及び前記係止部を連結し、前記一端から前記第１固定部の延びる方向に沿って前記係止部に至るまで延出する連結部と、を有するジョイナー。 Joiner for outer corner structure of outer wall material,
A pair of fixed parts fixed to the housing, having a first fixed part and a second fixed part that are in contact with each other so as to be arranged in a substantially L shape in plan view and extend in a direction substantially orthogonal to each other;
A locking portion that extends along a direction in which the second fixing portion extends, and that is locked to a pegging recess formed on the back surface side of the end portion that forms the protruding corner structure of the outer wall member; A joiner that connects the locking portion and extends from the one end to the locking portion along a direction in which the first fixing portion extends.
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JP2021055332A (en) * 2019-09-27 2021-04-08 大和ハウス工業株式会社 Projected corner member and projected corner structure
KR20230107024A (en) * 2022-01-07 2023-07-14 김경수 Corner joint method of curved exterior panel for construction

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JP2021055332A (en) * 2019-09-27 2021-04-08 大和ハウス工業株式会社 Projected corner member and projected corner structure
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