JP3701130B2

JP3701130B2 - Base material for still water

Info

Publication number: JP3701130B2
Application number: JP35503098A
Authority: JP
Inventors: 光永松平
Original assignee: 株式会社エービーシー商会
Priority date: 1998-12-14
Filing date: 1998-12-14
Publication date: 2005-09-28
Anticipated expiration: 2018-12-14
Also published as: JP2000179055A

Description

【０００１】
【発明の属する技術分野】
本発明は、隣接する建物間の躯体間隙を覆う屋根型ジョイントカバー材又は躯体の天端面を覆う笠木型カバー材を支持する止水用下地材に関する。
【０００２】
【従来の技術及び発明が解決しようとする課題】
従来のパラペット天端面を覆う笠木型カバー材の下地材としては、例えば実開昭６２−１６５３１８号に開示されているようなホルダーが一般的であった。すなわち、図４に示すように、パラペット天端部５Ａの天端面５Ｂの巾方向にわたる所要巾の基板部５１ａの両側に、笠木カバー材５２の上面に水勾配を与えるように若干高く突出する支持面部５１ｂ，５１ｃを形成し、これら支持面部５１ｂ，５１ｃの両側に笠木カバー材５２を嵌合する下折板５１ｄ，５１ｅを若干下開き状に形成してなるホルダー５１の如きものが一般的であった。このホルダー５１は、前記基板部５１ａにパラペットの巾方向に長く形成した長孔にアンカーボルトを打ち込んで天端面５Ｂの長手方向に適宜間隔をおいて固定配設し、このホルダー５１の上方から笠木カバー材５２を被嵌し、笠木カバー材５２両側に形成した下折部５２ａ，５２ｂの下端部を前記下折板５１ｄ，５１ｅの下端部に弾性係合させて笠木カバー材５２を支持するものであった。
【０００３】
ところが、このようなカバー材の取付け構造においては、ホルダー５１を天端面５Ｂの長手方向に適宜間隔をおいて配設するものであったため、パラペット天端部５Ａの側壁面に沿って下方より吹上げてくる雨水はホルダー５１、５１間から笠木カバー材５２内に浸入し放題であり、例えば笠木カバー材５２内のアンカーボルトなどを濡らして腐蝕を誘発し易いなどの問題があった。
【０００４】
そこで最近では、ホルダーとホルダーとの間にガスケットを配設して天端面とカバー材との間をシールする構成のものが開示されるようになってきた。
例えば、特開平９−４０７０号公報には、このようなガスケットを配設してなる屋根型エキスパンションジョイントの取り付け構造が開示されている。
【０００５】
すなわち、上記公報には、図５に断面図で示す如く、間隙を有した隣接する躯体４Ａ，４Ａ´にホルダー４３を跨がせ、このホルダー４３を両躯体４Ａ，４Ａ´にばね４６を介在して連結し、このホルダー４３にカバー体４４を被嵌させた構成を有するエキスパンションジョイントであって、少なくとも一方の躯体において、躯体面に固定した固定部材４１と、ホルダー４３にばね４６を介在して連結した支持部材４５とを、躯体間隙長手方向に対してスライド可能に、かつ躯体間隙幅方向に対して回動可能に連結した構成を有することを特徴とするエキスパンションジョイントが記載されており、このエキスパンションジョイントは、隣接する躯体４Ａ，４Ａ´の天端間に跨設するホルダー４３の取付け個所以外は、天端面とカバー体４４間を支持部材４１とガスケット４２によりシールして取り付けられている。
【０００６】
しかし、このような屋根型エキスパンションジョイントの取り付け構造においても、ホルダー４３の両端部における側板４３ｂの側端面から係止片４３ｃに至る間から、矢印で示す如く、雨水が下から回り込み浸入してばね４６やボルト４８，４９を濡らしてやはりこれらの腐蝕を誘発し易いという問題があった。
【０００７】
そこで本発明は、上記に見られるような屋根型ジョイントカバー材や笠木型カバー材の取付け構造において、下からの吹上げ雨水の浸入をも確実に遮断することができる止水用下地材を提供せんとするものである。
【０００８】
【課題を解決するための手段】
上記課題を解決するために本発明は、隣接する建物間の躯体間隙を覆う屋根型ジョイントカバー材又は躯体の天端面を覆う笠木型カバー材の下地材であって、前記躯体間隙幅方向又は天端面短手幅方向の立上り側壁により形成された凹溝部を有する下地材本体部と、下地材本体部の少なくとも一側に配設してあり、凹溝部を閉塞するように立上げ形成した水返し片を有する垂下部とを備え、立上り側壁と水返し片とを同等高さに形成して凹溝部の周壁としてあり、下地材本体部の凹溝部内の底板部に形成したボルト挿通用長孔にボルトを挿通して躯体天端面側に固定してある構成を有する止水用下地材とした。
これにより、下地材を取り付けた部分から下からの吹上げ雨水が屋根型ジョイントカバー材や笠木型カバー材内に浸入することを確実になくすことができるから、従来の如くガスケットを配設するなどして下地材間をシールすれば、屋根型ジョイントカバー材や笠木型カバー材内への雨水の浸入を確実に遮断することができる。
なお、上記構成において、垂下部は下地材本体部の少なくとも一側に配設されていればよく、下地材本体部の一側のみ垂下部を配設する場合も、下地材本体部の両側に垂下部を配設する場合を配設する場合も含むものである。
【０００９】
【発明の実施の形態】
以下、本発明の止水用下地材の構成を、屋根型ジョイントカバー材の下地材に適用した好適な実施形態について、図面に基づき具体的に説明する。
【００１０】
本例の止水用下地材１は、図１、図２及び図３に斜視図で示す如く、下地材本体部１１と垂下部１２，１２とからなり、上記下地材本体部１１は、横断面が略みぞ形鋼形状をなし、その長手方向の側縁辺沿いを立上げて立上り側壁１１３とすると共に、該立上り側壁１１３の内側に内向き片１１２，１１２を対向突設して、垂下部１２を挿着固定する凹溝部１１１が形成されている。
また、下地材本体部１１の底板部には、天端面上に固定した下地材固定具１２７との間をボルト１２５により固着するためのボルト挿通用長孔１２４が穿設されている。
【００１１】
一方、上記下地材本体部１１に固定されている垂下部１２は、図示の如く、その一端側にカバー係止部１２２が垂下形成されていると共に、下地材本体部１１の立上り側壁１１３と同等高さの水返し片１２１が形成されている。
そして、上記下地材本体部１１とは別体の垂下部１２にボルト挿通用長孔１２３を穿設しておき、これと下地材本体部１１に穿設したボルト挿通用長孔１２４とを符合させ、垂下部１２の側縁辺を下地材本体部１１の内向き片１１２，１１２によりかしめ固定されている。
【００１２】
なお、垂下部１２を下地材本体部１１と一体に成形し、同時にボルト挿通用長孔１２３，１２４を穿設して形成することもできる。
【００１３】
上述の如く、本例の止水用下地材１では、下地材本体部１１の凹溝部１１１に垂下部１２の他端側を挿入し、両者間をかしめ固定して予め下地材１を形成しておき、次いで、下地材固定具１２７と上記下地材１のボルト挿通用長孔１２３，１２４にボルト１２５を通し、ばね１２６を介在させて、躯体Ａ，Ａ´の天端に固着した下地材固定具１２７と上記下地材１間を弾発的に締着する。
【００１４】
このように、下地材固定具１２７と上記下地材１間が、ボルト１２５及びばね１２６を介して、ボルト挿通用長孔１２３，１２４の長さ方向にスライド可能に弾発的に締着されているので、躯体Ａと躯体Ａ´の相互間が揺動により近付いたり遠去かったりしても、それによるテンションを吸収することができる仕組みになっている。
【００１５】
上記水返し片１２１は、下地材本体部１１の側端面に当接され、立上り側壁１１３と同一高さの止水壁を形成するようになっていると共に、図３に示す如く、カバー材２の垂下係止片２１を矢印方向に回動移動させて、上記カバー係止部１２２に掛着固定するようになっている。
【００１６】
また、下地材本体部１１に垂下部１２を固定してなる下地材１の両端部を挟むようにして、従来同様のガスケット３が、躯体Ａ，Ａ´の天端面の長手方向に取付けられていて、該ガスケット３により、下地材１の取付け部位を除くカバー材２内壁面をシールして、雨水の浸入を遮断している。
【００１７】
なお、上記下地材本体部１１の内向き片１１２，１１２を側端部から所定長さだけ切除して、垂下部１２の水返し片１２１が下地材本体部１１の内側方向に入り込むように設定することもできる。
【００１８】
上記本発明の下地材１は、躯体Ａ，Ａ´の天端又は笠木にカバー材２を取付けると共に、カバー材２の取付け部位からの雨水の浸入を遮断するためのものであって、予め、躯体Ａ，Ａ´の天端又は笠木の幅間隔に対応するように寸法を調整した下地材本体部１１の長手方向に垂下部１２を内挿し、水返し片１２１で下地材本体部１１の凹溝部１１１を塞ぐように垂下部１２を下地材本体部１１にかしめ固定しておく。
【００１９】
そして、上述の如く、躯体Ａ，Ａ´の天端に固着した下地材固定具１２７から下地材１のボルト挿通用長孔１２３，１２４を通し、ばね１２６をかましたボルト１２５により、下地材固定具１２７と下地材１間を弾発的に締着しておく。
しかるのち、図３に示す如く、垂下部１２の一端に形成したカバー係止部１２２に、カバー材２の垂下係止片２１を係着すれば、矢印Ｘ，Ｘ´方向から吹上げられる雨水は、仮に、躯体Ａと躯体Ａ´の相互間隔が変動しても、下地材１の内側へ入り込むことができずその浸入が阻止されるので、下地材本体部１１の内側のボルト１２５やばね１２６、或いは、下地材固定具１２７等を腐蝕から保護することができるものである。
【００２０】
なお、上記下地材１の構成は、上述のような隣接する建物間の躯体間隙を覆う屋根型ジョイントカバー材の下地材（ホルダー）ばかりではなく、躯体の天端面を覆う笠木型カバー材の下地材（ホルダー）にも同様に適用可能である。
【図面の簡単な説明】
【図１】本発明の一実施例にかかる下地材の一例を示した斜視図である。
【図２】図１の下地材の分解状態を示した展開斜視図である。
【図３】図１の下地材を躯体間に取付けた状態を示した斜視図である。
【図４】従来の笠木型カバー材を支持する下地材の一例を示した側断面図である。
【図５】従来の屋根型エキスパンションジョイントカバー材を支持する下地材の一例を示した側断面図である。
【符号の説明】
１下地材
１１下地材本体部
１１１凹溝部
１１２内向き片
１１３立上り側壁
１２垂下部
１２１水返し片
１２２カバー係止部
１２３ボルト挿通用長孔
１２４ボルト挿通用長孔
１２５ボルト
１２６ばね
１２７下地材固定具
２カバー材
２１垂下係止片
３ガスケット
Ａ躯体
Ａ´ 躯体[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water-stop base material that supports a roof-type joint cover material that covers a gap between adjacent buildings or a headboard-type cover material that covers the top end face of the frame.
[0002]
[Prior art and problems to be solved by the invention]
As a base material of a conventional sasaki type cover material covering the top end surface of the parapet, a holder as disclosed in, for example, Japanese Utility Model Publication No. 62-165318 is generally used. That is, as shown in FIG. 4, a support projecting slightly high so as to give a water gradient to the upper surface of the headboard cover member 52 on both sides of the base portion 51a having a required width across the width direction of the top end surface 5B of the parapet top end portion 5A. It is common to use a holder 51 in which surface portions 51b and 51c are formed, and lower folding plates 51d and 51e for fitting the cap cover material 52 are formed on both sides of the support surface portions 51b and 51c. there were. The holder 51 is fixedly disposed at an appropriate interval in the longitudinal direction of the top end surface 5B by driving anchor bolts into a long hole formed in the width direction of the parapet in the substrate portion 51a. A cover material 52 is fitted, and the lower end portions of the lower folding portions 52a and 52b formed on both sides of the headboard cover material 52 are elastically engaged with the lower end portions of the lower folding plates 51d and 51e to support the headboard cover material 52. Met.
[0003]
However, in such a cover material mounting structure, since the holders 51 are arranged at appropriate intervals in the longitudinal direction of the top end surface 5B, the holder 51 is blown from below along the side wall surface of the parapet top end portion 5A. The rainwater that comes up enters the headboard cover member 52 from between the holders 51 and 51 and is unlimited, for example, there is a problem that the anchor bolts in the headboard cover member 52 are wetted to easily cause corrosion.
[0004]
Therefore, recently, a configuration in which a gasket is disposed between the holders to seal between the top end surface and the cover material has been disclosed.
For example, Japanese Patent Laid-Open No. 9-4070 discloses a roof type expansion joint mounting structure in which such a gasket is provided.
[0005]
That is, in the above publication, as shown in the sectional view of FIG. 5, a holder 43 is straddled between adjacent housings 4A and 4A ′ having a gap, and a spring 46 is interposed between the housings 4A and 4A ′. An expansion joint having a structure in which the cover body 44 is fitted to the holder 43, and in at least one of the housings, a fixing member 41 fixed to the housing surface and a spring 46 interposed in the holder 43. The expansion joint is characterized in that it has a structure in which the support member 45 connected in this manner is slidable in the longitudinal direction of the housing gap and connected in a rotatable manner in the width direction of the housing gap. This expansion joint is provided between the top end surface and the cover body 44 except for the attachment portion of the holder 43 extending between the top ends of the adjacent casings 4A and 4A ′. It is attached to the sealing by the support member 41 and the gasket 42.
[0006]
However, even in such a roof-type expansion joint mounting structure, as shown by the arrows, rainwater enters from the side end surface of the side plate 43b at both ends of the holder 43 to the locking piece 43c and enters the spring. 46 and bolts 48 and 49 were also wetted, so that there was a problem that these were easily induced.
[0007]
Accordingly, the present invention provides a water-stop base material that can reliably block the intrusion of rainwater blown from below in the mounting structure of the roof-type joint cover material and the headboard-type cover material as seen above. It is something to be done.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a base material for a roof-type joint cover material covering a frame gap between adjacent buildings or a headboard type cover material covering the top end face of the frame, wherein A base material body portion having a groove portion formed by a rising side wall in the width direction of the end face, and a water return formed on at least one side of the base material body portion so as to close the groove portion. A long hole for inserting a bolt formed in the bottom plate portion in the concave groove portion of the base material main body portion. A base material for still water having a structure in which a bolt is inserted through and fixed to the top end side of the housing.
As a result, it is possible to reliably prevent the rainwater blown from below from entering the base material from entering the roof-type joint cover material or the headboard-type cover material. By sealing between the base materials, it is possible to reliably block the intrusion of rainwater into the roof type joint cover material and the headboard type cover material.
In the above configuration, the drooping portion only needs to be disposed on at least one side of the base material main body portion. Even when the drooping portion is disposed on only one side of the base material main body portion, the drooping portion is provided on both sides of the base material main body portion. The case where the hanging portion is disposed is also included.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment in which the structure of the water-stop base material of the present invention is applied to a base material of a roof-type joint cover material will be specifically described based on the drawings.
[0010]
As shown in the perspective views of FIGS. 1, 2, and 3, the water-stop base material 1 of this example is composed of a base material main body 11 and hanging parts 12 and 12, and the base material main body 11 is crossed. The surface has a substantially groove-shaped steel shape, and rises along the side edge in the longitudinal direction to form a rising side wall 113, and inwardly facing pieces 112, 112 are provided on the inside of the rising side wall 113 so as to face each other. A concave groove 111 for inserting and fixing 12 is formed.
In addition, a bolt insertion long hole 124 is formed in the bottom plate portion of the base material main body 11 to fix the base material fixture 127 fixed on the top end surface with a bolt 125.
[0011]
On the other hand, the hanging portion 12 fixed to the base material main body 11 has a cover locking portion 122 depending on one end thereof, as shown, and is equivalent to the rising side wall 113 of the base material main body 11. A water return piece 121 having a height is formed.
Then, a bolt insertion long hole 123 is formed in the hanging portion 12 which is separate from the base material main body 11, and this is aligned with the bolt insertion long hole 124 formed in the base material main body 11. The side edges of the drooping portion 12 are caulked and fixed by the inwardly facing pieces 112 and 112 of the base material main body 11.
[0012]
The drooping portion 12 may be formed integrally with the base material main body portion 11 and at the same time, the bolt insertion long holes 123 and 124 may be formed.
[0013]
As described above, in the water-stop base material 1 of this example, the base material 1 is formed in advance by inserting the other end side of the drooping portion 12 into the concave groove portion 111 of the base material body 11 and caulking and fixing the two. Next, the base material fixed to the top ends of the casings A and A ′ by passing the bolt 125 through the base material fixture 127 and the bolt insertion long holes 123 and 124 of the base material 1 and interposing the spring 126. The fixing tool 127 and the base material 1 are elastically fastened.
[0014]
In this way, the base material fixture 127 and the base material 1 are elastically fastened through the bolt 125 and the spring 126 so as to be slidable in the length direction of the bolt insertion long holes 123 and 124. Therefore, even if the housing A and the housing A ′ move closer to each other or move away due to the swinging, the mechanism can absorb the tension.
[0015]
The water return piece 121 is in contact with the side end surface of the base material main body 11 to form a water stop wall having the same height as the rising side wall 113, and as shown in FIG. The hanging locking piece 21 is pivotally moved in the direction of the arrow so as to be hooked and fixed to the cover locking portion 122.
[0016]
In addition, the gasket 3 similar to the prior art is attached in the longitudinal direction of the top end surfaces of the casings A and A ′ so as to sandwich both ends of the base material 1 formed by fixing the hanging portion 12 to the base material body 11. The gasket 3 seals the inner wall surface of the cover material 2 excluding the attachment site of the base material 1 to block rainwater from entering.
[0017]
The inwardly facing pieces 112, 112 of the base material main body 11 are cut by a predetermined length from the side ends, and the water return piece 121 of the hanging part 12 is set to enter the inner side of the base material main body 11. You can also
[0018]
The base material 1 of the present invention is for attaching the cover material 2 to the top end or headboard of the casings A and A ′, and for blocking the intrusion of rainwater from the attachment site of the cover material 2, The drooping portion 12 is inserted in the longitudinal direction of the base material main body 11 whose dimensions are adjusted so as to correspond to the top edge of the casings A and A ′ or the width of the headboard, and the water return piece 121 is used to insert the concave portion of the base material main body 11. The hanging part 12 is caulked and fixed to the base material main body part 11 so as to close the groove part 111.
[0019]
Then, as described above, the base material fixing tool 127 fixed to the top ends of the casings A and A ′ is passed through the bolt insertion long holes 123 and 124 of the base material 1, and the base material is provided by the bolt 125 with the spring 126 attached. The fixing tool 127 and the base material 1 are elastically fastened.
After that, as shown in FIG. 3, if the hanging locking piece 21 of the cover material 2 is engaged with the cover locking portion 122 formed at one end of the hanging portion 12, the rainwater blown up from the directions of the arrows X and X ′. Even if the mutual distance between the casing A and the casing A ′ fluctuates, it cannot enter the inside of the base material 1 and is prevented from entering, so that the bolt 125 and the spring inside the base material main body 11 can be prevented. 126, or the base material fixture 127 and the like can be protected from corrosion.
[0020]
In addition, the structure of the said base material 1 is not only the base material (holder) of the roof type joint cover material which covers the housing | casing gap | interval between adjacent buildings as mentioned above, but the base of the headboard type cover material which covers the top end face of a housing. The same applies to the material (holder).
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a base material according to an embodiment of the present invention.
2 is a developed perspective view showing an exploded state of the base material of FIG. 1; FIG.
FIG. 3 is a perspective view showing a state in which the base material of FIG. 1 is attached between housings.
FIG. 4 is a side sectional view showing an example of a base material that supports a conventional headboard type cover material.
FIG. 5 is a side sectional view showing an example of a base material for supporting a conventional roof type expansion joint cover material.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Base material 11 Base material main-body part 111 Concave groove part 112 Inwardly facing piece 113 Standing side wall 12 Hanging part 121 Water return piece 122 Cover latching part 123 Bolt insertion long hole 124 Bolt insertion long hole 125 Bolt 126 Spring 127 Fixing of base material Tool 2 Cover material 21 Suspension locking piece 3 Gasket A Housing A ′ Housing

Claims

A roof-type joint cover material covering a frame gap between adjacent buildings or a base material of a headboard type cover material covering a ceiling end surface of the frame, and formed by rising sidewalls in the frame gap width direction or the top end width direction. A base material body portion having a concave groove portion, and a drooping portion that is disposed on at least one side of the base material main body portion and has a water return piece that is formed upright so as to close the groove portion. And the water return piece are formed to have the same height as the peripheral wall of the groove, and the bolt is inserted into the bolt insertion slot formed in the bottom plate in the groove of the base material body, A base material for still water having a fixed structure .