JPS63272832A - Expansion joint - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明はエキスパンションジヨイント、詳しくは建物躯
体間の間隙にバネ部材と弾性部材を介してカバー材を設
けてなり、不同沈下、震動等により生じる両建物躯体の
相対的変位に対するバネの対応力を拡大向上させたエキ
スパンションジヨイントに関する。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an expansion joint, more specifically, a cover material is provided in the gap between building frames through a spring member and an elastic member, and the This invention relates to an expansion joint that expands and improves the ability of a spring to respond to the relative displacement of both building frames.

（従来技術） 一般に、間隙をおいて設けられた建物躯体に設置された
エキスパンションジヨイントは、特公昭４９−３１９３
６号公報に示されるように、各建物躯体にそれぞれ支持
部材を固定し、該支持部材に上記間隙に沿って複数のバ
ネ部材を取着し、該バネ部材のみにカバー材を止着して
なるもの、あるいは実開昭５７−８０５０９号公報に示
されるように、各建物躯体の間にバネ受は部材を配設し
、該バネ受は部材とカバー材との間にバネを介してカバ
ー材を取着させるもの等が知られている。これらはいず
れもバネを介して力／＜−材を取付ける構造であるから
、不同沈下、震動等により相対する建物躯体が相対的に
別異なる方向に移動したときは、これに応じて上記バネ
部材、バネ受は部材等のバネ部材が撓んで上記カバー材
の変形を防ぎ、カバー材が上記変位に応動することがで
きる。しかしながら、バネ部材の変形にも限度があり、
このバネ応力の限度を越えて撓むと、一つのバネ部材の
みでは、変形圧力に耐えられず降服してしまい、変形し
たまま元に戻らなくなってしまうことがある。このため
、躯体変動が終了した後にカバー材の建物躯体に対する
圧着力が失なわれて両者間に隙間ができてしまい、カバ
ー機能が損なわれたり、カバー材が脱落したりするおそ
れがある。これに対し、バネの弾性を大きくすることも
考えられるが、しかし、カバー材の建物躯体に対する密
着強度は小さくなる欠点があった。(Prior art) In general, expansion joints installed in the building frame with gaps are
As shown in Publication No. 6, a supporting member is fixed to each building frame, a plurality of spring members are attached to the supporting member along the above-mentioned gap, and a cover material is fixed only to the spring member. As shown in Japanese Utility Model Application Publication No. 57-80509, a spring holder is provided with a member between each building frame, and the spring holder is provided with a cover via a spring between the member and the cover material. There are known methods for attaching materials. All of these have a structure in which force/<- material is attached via springs, so when opposing building frames move in relatively different directions due to uneven settlement, vibration, etc., the spring member In the spring receiver, a spring member such as a member is bent to prevent deformation of the cover material, and the cover material can respond to the displacement. However, there is a limit to the deformation of the spring member,
If the spring stress is bent beyond the limit, a single spring member may not be able to withstand the deformation pressure and yield, and the deformation may not return to its original state. For this reason, after the structural change is completed, the pressure of the cover material against the building frame is lost, and a gap is created between the two, which may cause the cover function to be impaired or the cover material to fall off. In order to solve this problem, it is possible to increase the elasticity of the spring, but this has the drawback that the adhesion strength of the cover material to the building frame is reduced.

（発明の技術的課題） 本発明は上記突点を解消し、特に不同沈下、震動等によ
り生じる両建物曜体の相対的変位に対するバネ部材の対
応力を拡大向上させることにより、カバー材を常に両建
物躯体に常に密着させることができるエキスパンション
ジヨイントを提供することをその技術的課題とする。(Technical Problems of the Invention) The present invention solves the above-mentioned problem and expands and improves the ability of the spring member to respond to the relative displacement of the two building panels caused by uneven settlement, vibration, etc. The technical problem is to provide an expansion joint that can be brought into close contact with both building frames at all times.

（課題を解決するための手段） 上記課題を解決するため、本発明に係るエキスパンショ
ンジヨイントは、間隙をおいて設けられた建物躯体にそ
れぞれ支持部材を固定し、これら各建物躯体に固定され
た支持部材に上記間隙内に間隔をおいて配置された複数
のバネ部材の両側を取着させ、該バネ部材又はバネ部材
に取付けたカバー材取着用ホルダを介して上記支持部材
に上記間隙を覆うカバー材を止着したエキスパンション
ジヨイントにおいて、上記カバー材又はカバー材取着用
ホルダの中央部から裏側に固定部材を突出させ、該固定
部材を上記バネ部材の中央部に貫通させるとともに、上
記固定部材の先端部と上記中央部の裏面との間に弾性部
材を介装するとともに、上記固定部材を上記バネ部材の
中央部に保持させる保持機構を設けたことを特徴とする
。(Means for Solving the Problems) In order to solve the above problems, the expansion joint according to the present invention has support members fixed to each building frame provided with a gap, and a support member fixed to each of these building frames. Both sides of a plurality of spring members arranged at intervals within the gap are attached to the support member, and the gap is covered by the support member via the spring member or a holder for attaching a cover material attached to the spring member. In the expansion joint to which the cover material is fixed, a fixing member is protruded from the center of the cover material or the holder for attaching the cover material to the back side, the fixing member is passed through the center of the spring member, and the fixing member is The spring member is characterized in that an elastic member is interposed between the tip end portion of the spring member and the back surface of the center portion, and a holding mechanism is provided for holding the fixing member in the center portion of the spring member.

（発明の作用、効果） 上述のように、本発明のエキスパンションジヨイントに
よれば、カバー材と支持部材の間にはバネ部材の弾性と
弾性部材の弾性とが作用することになるから、相対する
建物躯体が相対的に変動することにより各建物躯体が離
間したり接近したりして躯体間間隙が広くなったり狭く
なったりしても、このように変位に対し弾性部材が上記
変位の一部を吸収できるから、バネ部材による対応力が
拡大向上し、このためカバー材が変形することがなく、
その端部の両建物躯体に対する密圧着状態を常に良好に
保持させることができる。しかも、固定部材は保持機構
により常にバネ部材の中央部に保持されるので、各建物
躯体の変動に伴ない、固定部材が傾いても、常にバネ部
材と弾性部材との弾性が良好に作用してカバー材と建物
躯体との間に隙間が開く現象を防止することができる。(Operations and Effects of the Invention) As described above, according to the expansion joint of the present invention, the elasticity of the spring member and the elasticity of the elastic member act between the cover material and the support member, so that the relative Even if the building frames move apart or approach each other due to the relative movement of the building frames, and the gap between the building frames becomes wider or narrower, the elastic member will not respond to the displacement in this way. Since it can absorb the parts, the response force of the spring member is expanded and improved, and the cover material does not deform.
It is possible to always maintain a good state of tight contact between the ends of both building frames. Furthermore, since the fixed member is always held at the center of the spring member by the holding mechanism, even if the fixed member is tilted due to the movement of each building frame, the elasticity between the spring member and the elastic member will always work well. This can prevent a gap from forming between the cover material and the building frame.

（実施例） 以下、図面により本発明に係る実施例について説明する
。(Example) Hereinafter, an example according to the present invention will be described with reference to the drawings.

第１図において符号Ａはエキスパンションジヨイントを
示す。このエキスパンションジョイン）Ａは、間隙Ｓを
おいて設けられた建物躯体（壁躯体）ｌ、１の端部にそ
れぞれ支持部材２．２を固定し、該支持部材２．２に上
記間隙Ｓに沿って複数のＷ字形のバネ部材３を間隔をお
いて係着し、該バネ部材３と弾性部材１５を介してカバ
ー材４を止着したものである。In FIG. 1, the symbol A indicates an expansion joint. This expansion join) A fixes supporting members 2.2 to the ends of building frames (wall frames) l and 1, respectively, which are provided with a gap S between them, and the support members 2.2 are attached to the supporting members 2.2 along the gap S. A plurality of W-shaped spring members 3 are engaged at intervals, and a cover material 4 is fixedly attached via the spring members 3 and an elastic member 15.

支持部材２．２には間隙Ｓの外方に向く係止縁５とカバ
ー材係合部６と止水板嵌合溝７が形成されている。The support member 2.2 is formed with a locking edge 5 facing outward of the gap S, a cover material engaging portion 6, and a water stop plate fitting groove 7.

カバー材４は建物躯体間隙Ｓを覆って上記係合部上に係
合する巾を有し、中央部の裏側（間隙Ｓ側）にはボルト
、ネジ状、板状等の固定部材８が突設され、両端部には
気密材１０．１０が取付けられている。The cover material 4 has a width that covers the building frame gap S and engages with the above-mentioned engaging portion, and a fixing member 8 such as a bolt, screw shape, plate shape, etc. is protruded from the back side of the center portion (gap S side). A gas-tight material 10.10 is attached to both ends.

バネ部材３は中央部を構成する凸状弯曲部３ａの両側に
凹状弯曲部３ｂ、３ｂを接続させることによりＷ字形に
形成されたもので、上記両側凹状弯曲部３ｂ、３ｂの先
端部に形成された係止部１２は上記支持部材２．２の係
止縁５に係止され、上記中央の凸状弯曲部３ａに形成し
た通し孔１３には上記固定部材８が貫通されている。さ
らに、この固定部材８の先端部に螺合等により取付けた
ナツト状、板状等の止め部材１４と上記凸状弯曲部３ａ
の裏面との間にはコイルバネ、ゴム、板バネ等からなる
弾性部材１５が介装されている。The spring member 3 is formed into a W-shape by connecting concave curved portions 3b, 3b to both sides of a convex curved portion 3a constituting the central portion, and is formed at the tips of the concave curved portions 3b, 3b on both sides. The locking portion 12 is locked to the locking edge 5 of the support member 2.2, and the fixing member 8 is passed through a through hole 13 formed in the central convex curved portion 3a. Further, a nut-shaped, plate-shaped, etc., stopper member 14 attached to the tip of the fixing member 8 by screwing or the like, and the convex curved portion 3a.
An elastic member 15 made of a coil spring, rubber, plate spring, etc. is interposed between the back surface and the back surface.

次に、上記エキスパンションジヨイントには、固定部材
８を上記バネ部材３の中央部に保持させる保持機構ａが
設けられている。この保持機構ａは止め部材１４の両側
をバネ部材３の凸状弯曲部３ａの外側方に突出する程度
に延長し、その端部を上記凸状弯曲部３ａを点線のよう
に切起してなる。切起し片４０．４０の内側に弾性的に
当接することにより構成されている。Next, the expansion joint is provided with a holding mechanism a that holds the fixing member 8 at the center of the spring member 3. This holding mechanism a extends both sides of the stopper member 14 to such an extent that it protrudes outward from the convex curved portion 3a of the spring member 3, and its ends are cut and raised from the convex curved portion 3a as shown by dotted lines. Become. It is constructed by elastically abutting on the inside of the cut and raised pieces 40 and 40.

上記構成において、カバー材４と支持部材２．２の間に
はバネ部材３の弾性とりｉ件部材１５の弾性とが作用す
ることになるから、相対する建物躯体１．１の変位が大
きくても、それに対し弾性部材１５が上記変位の一部を
吸収できるから、バネ部材３による対応力が拡大向上し
、このためカバー材４は変形することがなく、常に両建
物躯体１．１に常に良好に密圧着することができる。す
なわち、建物躯体ｌ、１が変動することにより躯体間間
隙Ｓが広くなるときは、第２図に点線で示すように、バ
ネ部材３が両側に引っ張られて変形し、凸状弯曲部３ａ
は浮き上る。しかしこのとき弾性部材１５の反力で伸長
して固定部材８の浮き上りは阻止されるから、カバー材
４は同じ位置に保持され、建物躯体１との間に間隙が生
じることが防止される。反対に、建物躯体１．１が変動
することにより躯体間間隙Ｓが狭まるときは、同図に一
点鎖線で示すように、バネ部材３は中央に押込まれて変
形し、凸状弯曲部３ａは躯体間間隙Ｓ内に沈む。しかし
このとき弾性部材１５が変形を吸収して縮小して固定部
材８の沈み込みは阻止されるから、カバー材４に対し無
理な力が加えられることが防止される。なお、バネ部材
３のバネ力は通常の場合、弾性部材の弾力と同じかそれ
よりも大きく設定すればよい。In the above configuration, since the elasticity of the spring member 3 and the elasticity of the member 15 act between the cover material 4 and the support member 2.2, the displacement of the opposing building frame 1.1 is large. However, since the elastic member 15 can absorb a part of the above-mentioned displacement, the corresponding force by the spring member 3 is expanded and improved, so that the cover material 4 is not deformed and is always attached to both building frames 1.1. Good tight crimping can be achieved. That is, when the gap S between the building frames 1 and 1 widens due to fluctuations in the building frames 1 and 1, the spring member 3 is pulled to both sides and deformed, as shown by the dotted line in FIG.
stands out. However, at this time, the elastic member 15 expands due to the reaction force and prevents the fixing member 8 from lifting up, so the cover material 4 is held in the same position and a gap is prevented from forming between it and the building frame 1. . On the other hand, when the gap S between the building frames narrows due to the movement of the building frame 1.1, the spring member 3 is pushed into the center and deformed, as shown by the dashed line in the figure, and the convex curved portion 3a is It sinks into the gap S between the building blocks. However, at this time, the elastic member 15 absorbs the deformation and contracts to prevent the fixing member 8 from sinking, thereby preventing excessive force from being applied to the cover material 4. Note that, in normal cases, the spring force of the spring member 3 may be set to be equal to or greater than the elasticity of the elastic member.

、さらに、上述のように建物躯体１、■が相対的に変位
することにより固定部材８がたとえ一時的に傾くことが
あっても、保持機構ａを構成する切起し片４０．４０の
反力により固定部材８は常にバネ部材３の中央弯曲部３
ａに保持されるので、同図に２点鎖線で示されるように
、建物躯体１、ｌの一方の外側面が他方の外側面よりも
突出するように変位しても、固定部材８が傾くことは阻
止されるので、カバー材４と建物躯体１との間に隙間が
開く現象を防止することができる。Furthermore, even if the fixing member 8 may be temporarily tilted due to the relative displacement of the building frames 1 and Due to the force, the fixing member 8 always remains in the central curved part 3 of the spring member 3.
Since the fixed member 8 is held at the position a, even if one of the outer surfaces of the building frames 1 and l is displaced so as to protrude more than the other, as shown by the two-dot chain line in the figure, the fixing member 8 will tilt. Since this is prevented, it is possible to prevent a gap from opening between the cover material 4 and the building frame 1.

なお、固定部材８をバネ部材３の中央部に保持する保持
機構は上述の例に限定されない。例えば、第３図（ａ）
に示すように、固定部材８にコイルバネ状間隔保持体４
１を固定し、該間隔保持体４１の外周をバネ部材３の凸
状弯曲部３ａの両側内壁に当接させる構成でもよい。こ
の間隔保持体は同図（ｂ）に符号４２で示すよう状弯曲
部３ｂ、３ｂに一端を固定し、他端を凸状弯曲部３ａ内
に配置してなるバネ状間隔保持体４３を止め部材１４の
両端の内側面に当接させる構成であってもよい。Note that the holding mechanism that holds the fixing member 8 at the center of the spring member 3 is not limited to the above-mentioned example. For example, Fig. 3(a)
As shown in FIG.
1 may be fixed, and the outer periphery of the spacer 41 may be brought into contact with inner walls on both sides of the convex curved portion 3a of the spring member 3. This spacer holds a spring-like spacer 43, which has one end fixed to the curved portions 3b and the other end disposed within the convex curved portion 3a, as shown by reference numeral 42 in FIG. It may be configured to abut against the inner surfaces of both ends of the member 14.

さらに、バネ部材３は一対のＵ字形のバネ部材をビス止
め等により一体結合してＷ字形に形成したもの（第４図
参照）、あるいはＵ字形、Ｈ字形等のものでもよく、バ
ネ部材３の両端と支持部材２．２の係止縁との係止態様
についても、第１図のような食い込みによる係止でなく
、引掛りによる係止であってもよい。Further, the spring member 3 may be a pair of U-shaped spring members that are integrally joined by screws or the like to form a W-shape (see Fig. 4), or may be U-shaped, H-shaped, etc. Regarding the manner in which both ends of the support member 2.2 are engaged with the engagement edges of the support member 2.2, the engagement may be achieved not by biting as shown in FIG. 1, but by hooking.

次に、上述のエキスパンションジヨイント構成は、第１
図のような例に限定されないほか、建物躯体が壁躯体の
場合や屋根躯体の場合にも適用することができる。Next, the expansion joint configuration described above
The present invention is not limited to the example shown in the figure, and can also be applied to cases where the building body is a wall body or a roof body.

そこで、以下にこれら各場合について説明する。Therefore, each of these cases will be explained below.

まず、第４図には相対する建物躯体が壁躯体２０．２１
で、これら一方の壁躯体２０の表面に対し他方の壁躯体
２１の表面が直角をなす場合の大隅部に設けられたエキ
スパンションジヨイントの例を示す。壁躯体２０．２１
にはそれぞれ支持部材２．２が固定され、一方の壁躯体
２０の支持部材２にはカバー材用係止縁５とカバー材係
合縁２４と止水板嵌合溝７とが設けられ、他方の壁躯体
２１の支持部材２にはカバー材用係止縁５と止水板嵌合
溝７とが設けられている。上記再検止縁５．５は躯体間
隙Ｓの両側に対向して設けられ、Ｗ字形バネ部材３が係
着されている。カバー材４は第１図の例と同様に、その
裏側に突出させた固定部材８δ先端部のＩトめ部材１４
と上記バネ部材３の凸状弯曲部３ａの裏面との間に弾性
部材１５を介装させることにより躯体間間隙Ｓに取着さ
れている。固定部材８は板バネ状間隔保持体４４によっ
て上記バネ部材３の中央に保持されている。First, in Figure 4, the opposing building skeleton is wall skeleton 20.21.
An example of an expansion joint provided at a large corner in a case where the surface of the other wall body 21 is perpendicular to the surface of one of the wall bodies 20 is shown below. Wall frame 20.21
A support member 2.2 is fixed to each of the support members 2, 2 and 2, and the support member 2 of one wall frame 20 is provided with a cover material locking edge 5, a cover material engagement edge 24, and a water stop plate fitting groove 7, The support member 2 of the other wall frame 21 is provided with a cover material locking edge 5 and a water stop plate fitting groove 7. The re-inspection edges 5.5 are provided opposite to each other on both sides of the frame gap S, and the W-shaped spring members 3 are secured thereto. The cover material 4 is similar to the example shown in FIG.
An elastic member 15 is interposed between the spring member 3 and the back surface of the convex curved portion 3a of the spring member 3, so that it is attached to the gap S between the skeletons. The fixing member 8 is held at the center of the spring member 3 by a leaf spring-like spacing member 44 .

次に１両壁部体２６．２１の支持部材２に形成された係
止縁５，５にはバネ部材３が係着され、カバー材４の両
端は気密材２６を介して建物躯体２０．２１の端部に当
接し、また一方の端縁１よ係合縁２４に係合している。Next, the spring members 3 are engaged with the locking edges 5, 5 formed on the support member 2 of the two wall bodies 26.21, and both ends of the cover material 4 are attached to the building frame 20.2 through the airtight material 26. 21 , and one end edge 1 engages with the engaging edge 24 .

次に、第５図は相対するパラペｙ　）に設けらレタエキ
スパンションジョイントの例である。Next, FIG. 5 is an example of a letter expansion joint provided on opposing parapets.

パラペラ）３０．３０の間隙Ｓ側端部にはそれぞれ支持
部材２．２が固定され、各支持部材２．２にはカバー材
用係止縁５とカバー材係合部６と止水板嵌合溝７とが設
けられ、再検止縁５．５は躯体間隙Ｓの両側に対向して
設けられ、Ｗ字形バネ部材３が係着されている。バネ部
材３にはさらにカバー材取着用ホルダ１６が取付けられ
、該カバー材取着用ホルダ１６の中央部の裏側には固定
部材８が突出され、該固定部材８はバネ部材３を貫通し
、その先端部の止め部材１４と上記バネ部材３の凸状弯
曲部３ａの裏面との間に弾性部材１５を介装させること
により躯体間間隙Ｓに取着されている。そして、上記ホ
ルダ１６の両端にカバー材４の両端が止着又は係着され
ている。さらに、支持部材２．２の保合部６の裏側に形
成された係止溝３２．３２と支持部材２．２に固定され
た取付は部材４５．４５とに水切り材３３が取着されて
いる。A support member 2.2 is fixed to each end of the gap S side of the parapeller) 30.30, and each support member 2.2 has a cover material locking edge 5, a cover material engagement portion 6, and a water stop plate fitting. A matching groove 7 is provided, and re-inspection edges 5.5 are provided facing each other on both sides of the frame gap S, and a W-shaped spring member 3 is engaged therewith. A holder 16 for attaching a cover material is further attached to the spring member 3, and a fixing member 8 is protruded from the back side of the central part of the holder 16 for attaching a cover material. An elastic member 15 is interposed between the stopper member 14 at the tip end and the back surface of the convex curved portion 3a of the spring member 3, so that it is attached to the gap S between the skeletons. Both ends of the cover material 4 are fastened or engaged to both ends of the holder 16. Further, the locking groove 32.32 formed on the back side of the retaining part 6 of the support member 2.2 and the attachment member 45.45 fixed to the support member 2.2 have a draining member 33 attached thereto. There is.

上述のように、バネ部材３にカバー材取着用ホルダ１６
を取付け、該カバー材取着用ホルダ１６にカバー材４を
取付ける構成であってもよい。As mentioned above, the holder 16 for attaching the cover material is attached to the spring member 3.
The cover material 4 may be attached to the holder 16 for attaching the cover material.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明に係るエキスパンションジヨイントの要
部断面図、第２図は上記エキスパンションジヨイントの
変形態様説明図、第３図（ａ）（ｂ）（ｃ）は保持機構
の他の例の断面図、第４図及び第５図は上記エキスパン
ションジヨイントの他の例を示す断面図である。 符号ｌ、２０．２１．３０・・・建物躯体、２・・・支
持部材、３・・・バネ部材、４・・・カバー材、５・・
・係止縁、８・・・固定部材、１４・・・止め部材、１
５・・・弾性部材、４０・・・切起し片、４１．４２．
４３．４４・・・間隔保持体Fig. 1 is a cross-sectional view of the main part of the expansion joint according to the present invention, Fig. 2 is an explanatory diagram of a modification of the expansion joint, and Figs. 3 (a), (b), and (c) are other examples of the holding mechanism. FIGS. 4 and 5 are cross-sectional views showing other examples of the expansion joint. Code l, 20.21.30...Building frame, 2...Support member, 3...Spring member, 4...Cover material, 5...
- Locking edge, 8... Fixing member, 14... Stopping member, 1
5... Elastic member, 40... Cut and raised piece, 41.42.
43.44... Spacing holder

Claims (1)

【特許請求の範囲】 間隙をおいて設けられた建物躯体にそれぞれ支持部材を
固定し、これら各建物躯体に固定された支持部材に上記
間隙内に間隔をおいて配置された複数のバネ部材の両側
を取着させ、該バネ部材又はバネ部材に取付けたカバー
材取着用ホルダを介して上記支持部材に上記間隙を覆う
カバー材を止着したエキスパンションジョイントにおい
て、 上記カバー材又はカバー材取着用ホルダの中央部から裏
側に固定部材を突出させ、該固定部材を上記バネ部材の
中央部に貫通させるとともに、上記固定部材の先端部と
上記中央部の裏面との間に弾性部材を介装するとともに
、上記固定部材を上記凸状弯曲部の中央に保持させる保
持機構を設けたことを特徴とするエキスパンションジョ
イント。[Scope of Claims] Support members are fixed to building frames provided at intervals, and a plurality of spring members arranged at intervals within the gaps are attached to the support members fixed to each building frame. In an expansion joint in which both sides are attached and a cover material covering the gap is fixed to the support member via the spring member or a holder for attaching the cover material attached to the spring member, the cover material or the holder for attaching the cover material A fixing member is protruded from the center to the back side of the spring member, the fixing member is passed through the center of the spring member, and an elastic member is interposed between the tip of the fixing member and the back of the center. . An expansion joint comprising a holding mechanism for holding the fixing member at the center of the convex curved portion.