JP4015057B2

JP4015057B2 - Kasagi joint structure

Info

Publication number: JP4015057B2
Application number: JP2003125522A
Authority: JP
Inventors: 夏樹小池
Original assignee: 理研軽金属工業株式会社
Priority date: 2003-04-30
Filing date: 2003-04-30
Publication date: 2007-11-28
Anticipated expiration: 2023-04-30
Also published as: JP2004332237A

Description

【０００１】
【発明の属する技術分野】
本発明は、ロッキング（層間変位）の適応性に優れた笠木のジョイント構造に関する。
【０００２】
【従来の技術】
従来の笠木ジョイント構造は、隙間を有して並ぶパラペット部の頂部に笠木を取り付けて、これら笠木の連結部の裏側にジョイント部材プレートを添え、該ジョイント部材プレートを、パラペットまたは笠木のホルダーへ一端を止着したバネ体の他端により笠木の内側へ当接させることにより、ロッキング（層間変位）に対処できるジョイント部材を得るようにしている（例えば、特許文献１参照）。
【０００３】
【特許文献１】
特許第２８３１９４３号公報（第３頁、第４頁、図２、図４）
【０００４】
しかしながら、上記構造の笠木のジョイント構造は、ジョイント部材プレートが一体構成であるため、図１１のようなロッキング（層間変位）が生ずると、ジョイント部材プレート２０は、同図のように傾き、中心部の下側が一方のパラペット２１の隅角２２へ当たり、左端の上側が笠木２３の内側へ当たり、右端の下側が他方のパラペット２４の上側へ当たり、更に、中間部の上側が他方の笠木２３の先端へ当ってロッキングにより破壊力を付加されるので、ジョイント部材プレート２０または笠木２３が破損や位置ずれ等を起こして、防水機能を失うという問題点がある。
【０００５】
【発明が解決しようとする課題】
本発明は前記問題点を解消し、ロッキング（層間変位）で笠木やジョイント部材の破損や位置ずれを生じないため、ジョイント部材部よりの水漏れ防止が確実に行われる笠木のジョイント構造を提供することをその課題とする。
【０００６】
【課題を解決するための手段】
前記課題を解決するため、本発明に係る笠木装置は、隙間をおいて連続的に並ぶ立上がり躯体の頂部に、上記隙間の上で端面が突き合せられるように笠木を連設し、これら笠木の突き合せ部にジョイント部材を配設した笠木のジョイント構造において、上記ジョイント部材を長さ方向に複数の分割ジョイント部材に分割して、その裏側に可撓性の防水シートを添設したことを特徴とする。
【０００７】
なお、複数の分割ジョイント部材の相互間には隙間を形成するのが好ましい。
【０００８】
また、前記各分割ジョイント部材は天板と天板の両側に折り曲げ形成された側片とを有し、隣り合う分割ジョイント部材の側片の折り曲げ角度を異なるようにするのがよい。
【０００９】
さらに、前記笠木を支持するホルダーがジョイント部材の両側のものに近付けて前記立上がり躯体へ取り付けられているのが好ましい。
【００１０】
【発明の実施の形態】
以下に本発明に係る笠木のジョイント構造の一実施形態を図面に付いて説明する。
【００１１】
図１〜図３において符号１は笠木のジョイント構造を示す。このジョイント構造１は、隙間Ｓを有して連続的に並設される立上がり躯体２及び３の頂部に、上記隙間Ｓの上で端面を突き合せるように笠木４をホルダー５によって取り付け、これら笠木４の突き合せ部６にはジョイント部材７を配設したものであって、上記ジョイント部材７は、長さ方向に分割ジョイント部材７ａ、分割ジョイント部材７ｂ、分割ジョイント部材７ｃの複数に分割されている。ジョイント部材７の下側には可撓性の防水シート８が添設されている。この防水シート８は両端の分割ジョイント部材７ａ、７ｃに取り付けられている。
【００１２】
上記笠木４のジョイント構造１における立上がり躯体２及び３は、建物の屋上等に設けられたパラペット等であり、一方の立上がり躯体２は、ＲＣ、ＳＲＣ等の一般構造であり、他方の立上がり躯体３は、ＰＣ、ＡＬＣ等からなる構造であって、両者の間に存在する隙間Ｓには図面に示してないが公知の目地が施される。
【００１３】
ホルダー５は、立上がり躯体２及び３の頂部もネジ９により固定され、図４に示す通り、斜め下方に垂下する係止片１０を有し、上部には笠木４に外側が下がる排水勾配をつけるための部材１１及び１２を設けてある。このホルダー５は、アルミニウムかその合金の押出成型か、あるいは、鋼材のプレス加工等で形成する。なお、ホルダー５の１つは、ジョイント部材７における両側の分割ジョイント部材７ａ，７ｃに近接して立上がり躯体２及び３へ取付けるようにする。
【００１４】
笠木４は、立上がり躯体２及び３の頂部両側から下方へ垂下する側板１３を有し、その先端に上記ホルダー５の係止片１０の先端に係止する鉤部１４を形成し、この鉤部１４を側板１３の弾性変形によってホルダー５の係止片１０に係止させて、笠木４を端面が突き合わされるように立上がり躯体２及び３に取付けられている。この笠木４もホルダー５と同様の材料、工法で製造される。
【００１５】
図５〜図１０において、ジョイント部材７は、笠木４の突き合わせ部６にその内側へ納まるように設けるものであり、分割ジョイント部材７ａ、分割ジョイント部材７ｂ、分割ジョイント部材７ｃに分割形成されて配置されている。両端の分割ジョイント部材７ａ、７ｃは、天板１５ａと天板１５ａの両側から下方へ垂下する側片１５を有している。そして、両端の分割ジョイント部材７ａ、７ｃの先端は笠木４の側板１３に設けた鉤部１４に係止している。これに対して、中央の分割ジョイント部材７ｂも天板１６ａの両側に側片１６を有しているが、側片１６の折り曲げ角度は、他の分割ジョイント部材７ａ、７ｃの側片１５の折り曲げ角度よりも大きく、ロッキング時には分割ジョイント部材７ａ、７ｂの係止片１５の内側へ入り込んで干渉を起こさないようにしている。この側片１６は、側片１５よりも長さを少し短くすることが好ましい。
【００１６】
また、上記各分割ジョイント部材７ａ、７ｂ、７ｃは、その外面に長手方向と直交する凸条１７を複数形成して補強を図っており、このジョイント部材７もホルダー５と同様の材料、工法で製造する。
【００１７】
防水シート８は、上記ジョイント部材７の各分割ジョイント部材７ａ、７ｂ、７ｃを相互間に若干の隙間ｓができるように並べた内側の形状に適合するように形成され、ジョイント部材７の内側に添設されている。そして、図５及び図７に示されるように、この防水シート８の両端とジョイント部材７の両側の分割ジョイント部材７ａ、７ｃとを、リベット、ネジ等の止着手段１８により結合するが、中央の分割ジョイント部材７ｂは防水シート８へ乗るだけとし、ロッキングが生じた際、各分割ジョイント部材７ａ、７ｂ、７ｃが個別に動けるようになっている。防水シート８は、軟質で弾性と耐候性を有する軟質の合成樹脂シート、ゴムシート、蛇腹状シート等を用いて形成するので、リベット、ネジ等の止着手段１８で止着する際には、その外側に当金１９をして確実な止着ができるようにする。
【００１８】
上記構成の笠木のジョイント部材装置１は、立上がり躯体２及び３が図１に示す通り等高を保持している常態においては、笠木４の突き合せ部６に配置されたジョイント部材７の各分割ジョイント部材７ａ、７ｂ、７ｃは、一線に並んでいて、防水シート８は各分割ジョイント部材７ａ、７ｂ、７の下面へ接触している。従って、笠木４のジョイント構造は原型を保持して、防水の機能を果たしている。
【００１９】
しかし、地震等で立上がり躯体２と立上がり躯体３とに図２のような高低差が付くロッキングが生じると、笠木４の突き合せ部１５に配置されているジョイント部材７のうち両端の分割ジョイント部材７ａ、７ｃは、笠木４に係止されるため水平状態を保って同図の通りとなり、止着される防水シート８の右端は引き下げられるため防水シート８は右下がりに傾くので、防水シート８に乗る中央の分割ジョイント部材７ｂも防水シート８に追随して傾き、その側片１６を分割ジョイント部材７ａの側片１５の内側へ図３のように入り込む。このため、ジョイント構造１のいずれの部分にも破損原因となる外力が加わらないので、ジョイント構造１は変形しても破損はすることなく、防水シート８で雨水等の入り込みを止める防水機能を確実に果たすものである。
【００２０】
【発明の効果】
請求項１の発明によれば、地震等でロッキングが生じても、複数に分割された分割ジョイント部材は個別に動くから、干渉し合うことがない。このため、ロッキングによる破壊力が加えられて破損や位置ずれを起こすことがない。また、ジョイント部材の裏側には、可撓性の防水シートが設けられていて、分割ジョイント部材が変形により離隔しても、雨水の入り込みを遮断して防水機能を確実に保ち得る。
【００２１】
請求項２に係る発明によれば、ジョイント部材を複数に分割して各分割ジョイント部材の間に隙間を存在させると、ロッキングが生じたとき、各分割ジョイント部材は他と干渉することなく自在に動いてジョイント部材の姿勢変形を無理なく行わせてジョイント構造の部材保護に大きく寄与する。
【００２２】
請求項３に係る発明によれば、隣り合う分割ジョイント部材の側片の折り曲げ角度を異なるようにしたので、ロッキングの発生時、分割ジョイント部材同士が干渉することが防止され、隣接する分割ジョイント部材が変形することも良好に防止できる。
【００２３】
請求項４に係る発明によれば、両端の分割ジョイント部材に近接したホルダーが笠木を支持しているため、ロッキングの発生時、笠木が変動しにくい。このため、分割ジョイント部材は安定して支持される。
【図面の簡単な説明】
【図１】笠木のジョイント構造の常態を笠木の一部を破断して示す正面図。
【図２】同上の変形態を笠木の一部を破断して示す正面図。
【図３】同上の平面図。
【図４】図３のＡ−Ａ線における断面図。
【図５】図３のＢ−Ｂ線における断面図。
【図６】図３のＣ−Ｃ線における断面図。
【図７】図３のＤ−Ｄ線における断面図。
【図８】立上り躯体へジョイント部材を取り付けようとする斜視図。
【図９】立上り躯体へジョイント部材を取り付ける斜視図。
【図１０】ジョイント部材の取付け後、立上り躯体へ笠木を取り付けようとする斜視図。
【図１１】従来の笠木のジョイント構造の作動態様を示す断面図。
【符号の説明】
１笠木のジョイント構造
Ｓ隙間
２及び３立上がり躯体
４笠木
５ホルダー
７ジョイント部材
８防水シート[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a joint structure of a headboard excellent in adaptability of rocking (interlayer displacement).
[0002]
[Prior art]
In the conventional headboard joint structure, a headboard is attached to the top of the parapet parts arranged with a gap, a joint member plate is attached to the back side of the connecting part of the headboard, and the joint member plate is attached to the parapet or the headboard holder at one end. A joint member capable of coping with locking (interlayer displacement) is obtained by abutting the inner side of the headboard with the other end of the spring body to which is fixed (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent No. 2831943 (page 3, page 4, FIG. 2, FIG. 4)
[0004]
However, in the joint structure of the headboard having the above structure, since the joint member plate is integrated, when the locking (interlayer displacement) as shown in FIG. 11 occurs, the joint member plate 20 is inclined as shown in FIG. The lower side hits the corner 22 of one parapet 21, the upper left end hits the inside of the headboard 23, the lower right end hits the upper side of the other parapet 24, and the upper side of the middle part of the other headband 23 Since a destructive force is applied by locking upon hitting the tip, there is a problem that the joint member plate 20 or the headboard 23 is damaged or displaced and loses its waterproof function.
[0005]
[Problems to be solved by the invention]
The present invention solves the above-mentioned problems, and provides a joint structure for the headboard that reliably prevents water leakage from the joint member portion because the headboard and the joint member are not damaged or displaced due to locking (interlayer displacement). That is the issue.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problems, a headboard apparatus according to the present invention includes a headboard connected to the top of a rising frame that is continuously arranged with a gap so that the end faces are abutted on the gap. In the joint structure of the headboard where the joint member is arranged at the butting portion, the joint member is divided into a plurality of divided joint members in the length direction, and a flexible waterproof sheet is attached to the back side thereof. And
[0007]
In addition, it is preferable to form a gap between the plurality of divided joint members.
[0008]
In addition, each of the divided joint members preferably includes a top plate and side pieces bent on both sides of the top plate, and the folding angles of the side pieces of the adjacent divided joint members are different.
[0009]
Furthermore, it is preferable that the holder for supporting the headboard is attached to the rising frame so as to be close to both sides of the joint member.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a headboard joint structure according to the present invention will be described below with reference to the drawings.
[0011]
1-3, the code | symbol 1 shows the joint structure of a cap. In this joint structure 1, the headboard 4 is attached to the tops of the rising housings 2 and 3 continuously arranged side by side with a gap S by a holder 5 so that the end faces are abutted on the gap S. 4, a joint member 7 is disposed in the abutting portion 6, and the joint member 7 is divided into a plurality of divided joint members 7a, divided joint members 7b, and divided joint members 7c in the length direction. Yes. A flexible waterproof sheet 8 is attached below the joint member 7. This waterproof sheet 8 is attached to the split joint members 7a and 7c at both ends.
[0012]
The rising frames 2 and 3 in the joint structure 1 of the headboard 4 are parapets or the like provided on the roof of a building, and one rising frame 2 is a general structure such as RC or SRC, and the other rising frame 3 Is a structure made of PC, ALC, etc., and a known joint is applied to the gap S between them, although not shown in the drawing.
[0013]
The holder 5 has the tops of the rising housings 2 and 3 fixed by screws 9 and has a locking piece 10 that hangs obliquely downward as shown in FIG. For this purpose, members 11 and 12 are provided. The holder 5 is formed by extrusion molding of aluminum or an alloy thereof, or press working of a steel material. One of the holders 5 is attached to the rising casings 2 and 3 in the vicinity of the split joint members 7a and 7c on both sides of the joint member 7.
[0014]
The headboard 4 has a side plate 13 that hangs downward from both sides of the top portions of the rising housings 2 and 3, and a collar portion 14 that is engaged with the distal end of the retaining piece 10 of the holder 5 is formed at the distal end. 14 is locked to the locking piece 10 of the holder 5 by elastic deformation of the side plate 13, and the headboard 4 is attached to the rising casings 2 and 3 so that the end faces are abutted. This cap 4 is also manufactured by the same material and method as the holder 5.
[0015]
5 to 10, the joint member 7 is provided in the butting portion 6 of the headboard 4 so as to be accommodated inside thereof, and is divided and arranged into a divided joint member 7a, a divided joint member 7b, and a divided joint member 7c. Has been. The split joint members 7a and 7c at both ends have a top plate 15a and side pieces 15 that hang downward from both sides of the top plate 15a. And the front-end | tip of the split joint members 7a and 7c of both ends is latched by the collar part 14 provided in the side plate 13 of the headboard 4. FIG. On the other hand, the central split joint member 7b also has side pieces 16 on both sides of the top plate 16a. The side piece 16 is bent at a bending angle of the side pieces 15 of the other split joint members 7a and 7c. It is larger than the angle, and enters the inside of the locking piece 15 of the divided joint members 7a and 7b at the time of locking so as not to cause interference. The side piece 16 is preferably slightly shorter than the side piece 15.
[0016]
Each of the split joint members 7a, 7b, 7c is reinforced by forming a plurality of ridges 17 perpendicular to the longitudinal direction on the outer surface, and the joint member 7 is also made of the same material and method as the holder 5. To manufacture.
[0017]
The waterproof sheet 8 is formed so as to conform to the inner shape in which the divided joint members 7a, 7b, and 7c of the joint member 7 are arranged so that a slight gap s is formed between them. It is attached. As shown in FIGS. 5 and 7, both ends of the waterproof sheet 8 and the divided joint members 7a and 7c on both sides of the joint member 7 are joined by fastening means 18 such as rivets and screws. The split joint member 7b only rides on the waterproof sheet 8, and when the locking occurs, each split joint member 7a, 7b, 7c can move individually. Since the waterproof sheet 8 is formed using a soft synthetic resin sheet having elasticity and weather resistance, a rubber sheet, a bellows-like sheet, and the like, when it is fastened by the fastening means 18 such as a rivet or a screw, The metal 19 is attached to the outside so that it can be securely fixed.
[0018]
In the normal state where the rising frame bodies 2 and 3 hold the same height as shown in FIG. 1, the joint member device 1 with the above-described structure is divided into each of the joint members 7 arranged at the butt portion 6 of the headboard 4. The joint members 7a, 7b, and 7c are aligned with each other, and the waterproof sheet 8 is in contact with the lower surfaces of the divided joint members 7a, 7b, and 7. Therefore, the joint structure of the cap 4 keeps the original shape and fulfills the waterproof function.
[0019]
However, when rocking with a height difference as shown in FIG. 2 occurs between the rising frame 2 and the rising frame 3 due to an earthquake or the like, the split joint members at both ends of the joint member 7 arranged at the butt portion 15 of the headboard 4. 7a and 7c are locked to the headboard 4 so that the horizontal state is maintained as shown in the figure, and since the right end of the waterproof sheet 8 to be fixed is pulled down, the waterproof sheet 8 is inclined downward. The center split joint member 7b that rides on the head also tilts following the waterproof sheet 8, and the side piece 16 enters the inside of the side piece 15 of the split joint member 7a as shown in FIG. For this reason, since no external force that causes damage is applied to any part of the joint structure 1, the joint structure 1 is not damaged even if it is deformed. It is what you fulfill.
[0020]
【The invention's effect】
According to the first aspect of the present invention, even if rocking occurs due to an earthquake or the like, the divided joint members divided into a plurality of parts move individually and thus do not interfere with each other. For this reason, the destructive force by rocking is applied and it does not cause breakage or position shift. In addition, a flexible waterproof sheet is provided on the back side of the joint member, and even if the split joint member is separated by deformation, entry of rainwater is blocked and the waterproof function can be reliably maintained.
[0021]
According to the second aspect of the present invention, when the joint member is divided into a plurality of parts and a gap exists between the divided joint members, when the locking occurs, the divided joint members can freely interfere with each other. It moves and makes the joint member's posture change without difficulty, greatly contributing to the protection of the joint structure.
[0022]
According to the invention according to claim 3, since the bending angles of the side pieces of the adjacent divided joint members are made different from each other, it is possible to prevent the divided joint members from interfering with each other at the time of occurrence of locking, and the adjacent divided joint members. It is also possible to satisfactorily prevent the deformation.
[0023]
According to the fourth aspect of the invention, since the holders close to the split joint members at both ends support the headboard, the headboard hardly fluctuates when rocking occurs. For this reason, the split joint member is stably supported.
[Brief description of the drawings]
FIG. 1 is a front view showing a normal state of a joint structure of a headboard with a part of the headboard cut away.
FIG. 2 is a front view showing a modification of the above, with a part of the headboard cut away.
FIG. 3 is a plan view of the same.
4 is a cross-sectional view taken along line AA in FIG.
5 is a cross-sectional view taken along line BB in FIG.
6 is a cross-sectional view taken along the line CC in FIG. 3;
7 is a cross-sectional view taken along line DD of FIG.
FIG. 8 is a perspective view of attaching a joint member to a rising frame.
FIG. 9 is a perspective view of attaching the joint member to the rising frame.
FIG. 10 is a perspective view of attaching a headboard to a rising frame after attaching a joint member.
FIG. 11 is a cross-sectional view showing an operation mode of a conventional headboard joint structure.
[Explanation of symbols]
1 Joint structure S of caps S Crevice 2 and 3 Standing frame 4 Caps 5 Holder 7 Joint member 8 Waterproof sheet

Claims

In the joint structure of the headboard where the headboards are continuously arranged at the tops of the rising frames that are continuously arranged with a gap so that the end surfaces are butted against the gap, and the joint members are arranged at the heading of these headboards. ,
A headboard joint structure, wherein the joint member is divided into a plurality of divided joint members in the length direction, and a flexible waterproof sheet is attached to the back side thereof.

The headboard joint structure according to claim 1, wherein a gap is formed between the plurality of split joint members.

Each of the divided joint members has a top plate and side pieces bent on both sides of the top plate, and the bending angles of the side pieces of adjacent divided joint members are made different. The headboard joint structure according to claim 2.

The joint structure according to any one of claims 1 to 3, wherein a holder that supports the headboard is attached to the rising frame in a state of being close to the split joint members at both ends.